CN223229621U

CN223229621U - Cement mortar test piece storage transmission device

Info

Publication number: CN223229621U
Application number: CN202421195512.3U
Authority: CN
Inventors: 欧阳丛森; 杨文�; 王军; 刘离; 颜坤; 晏釜; 敖芳; 邱叶思亮; 阳凡; 涂玉林; 马建峰
Original assignee: China West Construction Group Co Ltd; Building Materials Science Research Institute Co Ltd of China West Construction Group Co Ltd
Current assignee: China West Construction Group Co Ltd; Building Materials Science Research Institute Co Ltd of China West Construction Group Co Ltd
Priority date: 2024-05-29
Filing date: 2024-05-29
Publication date: 2025-08-15
Anticipated expiration: 2034-05-29

Abstract

The utility model discloses a cement mortar test piece storage and transmission device, which belongs to the technical field of fracture and compression resistance tests of cement mortar test pieces. The test piece storage transmission device designs the storage part and the feeding part, optimizes the management flow of the test piece, the storage part can store the test piece in a large amount, the feeding part is arranged to enable the test piece to be orderly conveyed to a preset position, the preset position can be the position reached by the mechanical arm, and the efficiency of test piece access is improved through the design.

Description

Cement mortar test piece storage transmission device

Technical Field

The utility model belongs to the technical field of fracture-resistant and compression-resistant tests of cement mortar test pieces, and particularly relates to a cement mortar test piece storage and transmission device.

Background

The testing of the strength of the cement mortar test piece is an essential important link in the cement and related industries. The process of testing for strength is a highly repeatable and time consuming task and testing by automated means is currently the main trend. The first problem to be solved in this process is how to store and transfer the test pieces to the corresponding locations.

At present, related products are mainly used for clamping and positioning cement mortar test pieces or concrete test pieces in the test process, and all the test pieces are required to be manually installed. The quick test piece positioning instrument for hydraulic concrete compressive strength detection is disclosed in Chinese patent publication No. CN219608583U, the device accelerates the test piece placement speed and improves the test piece placement accuracy, but the test piece needs to be manually placed and manually clamped each time, and the whole process still needs to be manually participated. However, the device cannot be applied to cement mortar test piece positioning, and the storage and transmission functions of the test piece are not realized.

Disclosure of utility model

In view of the above, the utility model provides a cement mortar test piece storage and transmission device, which realizes the storage and transmission of test pieces to corresponding positions.

The utility model adopts the following technical scheme:

The cement mortar test piece storage and transmission device comprises a storage part and a feeding part;

The storage part is used for storing cement mortar test pieces;

the feeding part is used for vertically conveying the cement mortar test piece stored in the storage part to a preset position.

Further, the storage part comprises at least one square storage room;

The square storage room can hold the stacked cement mortar test piece, limits the degree of freedom of cement mortar test piece horizontal direction between square storage, just square storage room's top is provided with square discharge gate for the ejection of compact of cement mortar test piece.

Further, the feeding part comprises a lifting mechanism, and the lifting mechanism is used for vertically and upwards conveying the cement mortar test piece in the square storage room.

Further, the lifting mechanism is an electric push rod mechanism arranged at the bottom of the square storage room.

Further, the lifting mechanism comprises a lifting piece, a moving piece and a driving piece;

One end of the lifting piece is connected with the moving piece, the other end of the lifting piece extends into the square storage room, and the lifting piece is used for lifting a cement mortar test piece in the square storage room;

the movable piece is in power connection with the driving piece, and the driving piece can drive the movable piece to vertically move;

and when the moving part moves vertically upwards, the lifting part can be driven to move upwards, so that the cement mortar test piece between the square storage parts moves upwards from bottom to top, and is discharged from the square discharge hole.

Further, the lifting mechanism also comprises a guide rail and a screw rod;

The moving piece is a sliding table, the sliding table is in threaded fit with the screw rod, and the sliding table is in sliding fit with the guide rail;

The driving piece is a motor, the motor is in power connection with the screw rod, and the motor can drive the sliding table to move vertically;

the square discharge gate is provided with first inductive switch, when pile up when the whole square discharge gate of coming out at the cement mortar test piece on the upper strata, first inductive switch triggers the motor stall, after pile up the cement mortar test piece on the upper strata by the arm snatchs away, first inductive switch triggers the motor drive the vertical upward movement of slip table.

Further, a second inductive switch is arranged at the upper part of the guide rail, and a third inductive switch is arranged at the bottom of the guide rail;

When the sliding table moves to the upper limit position, the second inductive switch triggers the motor to rotate reversely, so that the sliding table moves downwards; when the second inductive switch moves to the upper limit position, the cement mortar test piece at the lowest layer in the square storage chamber is completely discharged from the square discharge hole;

and when the sliding table moves downwards to the lower limit position, the third inductive switch triggers the motor to stop rotating.

Further, the number of the square storage spaces is three.

The beneficial effects are that:

1. the cement mortar test piece storage and transmission device comprises a storage part and a feeding part, wherein the storage part is used for storing cement mortar test pieces, and the feeding part is used for vertically transmitting the cement mortar test pieces stored in the storage part to a preset position.

So, test piece storage transmission device designs storage portion and pay-off portion, has optimized the management flow of test piece, and storage portion can a large amount of storage test pieces, and the setting of pay-off portion makes the test piece can be orderly carried to the position of predetermineeing, and the position of predetermineeing can be the position that the arm can reach, and such design has improved the efficiency of test piece access.

2. The storage part comprises at least one square storage room, wherein the square storage room can accommodate stacked cement mortar test pieces, the square storage room limits the freedom degree of the cement mortar test pieces in the horizontal direction, and a square discharge hole is arranged above the square storage room and used for discharging the cement mortar test pieces.

Therefore, by designing the square storage room, a plurality of cement mortar test pieces are allowed to be vertically stacked, so that the space utilization rate is optimized, and the storage efficiency is remarkably improved by the design especially in a limited laboratory or factory environment. The square storage room not only provides a structured storage solution, but also ensures the stability of the test piece in the storage and discharging processes by limiting the degree of freedom of the test piece in the horizontal direction, and reduces the potential damage risk caused by movement or dislocation of the test piece. The shape of the square discharge hole is matched with the shape of the test piece, so that the regular arrangement of the test piece is maintained, and the position of the test piece is more fixed and predictable.

3. The feeding part comprises a lifting mechanism, and the lifting mechanism is used for vertically and upwards conveying the cement mortar test piece in the square storage room.

So, the design of vertical transport has saved the space, makes the test piece can pile up and vertically carry in the gravity direction, compares the horizontal transport, has reduced the dislocation that the test piece probably appears in horizontal migration in-process.

4. The lifting mechanism is an electric push rod mechanism arranged at the bottom of the square storage room, and the structure is simple and compact.

5. The lifting mechanism comprises a lifting piece, a moving piece and a driving piece, wherein one end of the lifting piece is connected with the moving piece, the other end of the lifting piece stretches into the square storage room, the lifting piece is used for lifting a cement mortar test piece between the square storage rooms, the moving piece is in power connection with the driving piece, the driving piece can drive the moving piece to vertically move, and when the moving piece vertically moves upwards, the lifting piece can be driven to move upwards, so that the cement mortar test piece between the square storage rooms moves upwards from below, and is discharged from the square discharge hole.

Therefore, the lifting and vertical movement of the test piece are realized through the combination of the lifting piece, the moving piece and the driving piece, and the smooth discharging of the test piece from the square storage room is ensured.

6. The lifting mechanism further comprises a guide rail and a screw rod, the moving part is a sliding table, the sliding table is in threaded fit with the screw rod and is in sliding fit with the guide rail, the driving part is a motor, the motor is in power connection with the screw rod, the motor can drive the sliding table to move vertically, the square discharge port is provided with a first inductive switch, the first inductive switch triggers the motor to stop when the whole cement mortar test pieces stacked on the uppermost layer come out of the square discharge port, and the first inductive switch triggers the motor to drive the sliding table to move vertically upwards after the cement mortar test pieces stacked on the uppermost layer are grabbed by the mechanical arm.

So, through the setting of first inductive switch, realized the automatic stall of test piece ejection of compact back motor to and the test piece is taken away the back motor start again, improved degree of automation and the security of operation.

7. The upper part of the guide rail is provided with a second inductive switch, the bottom of the guide rail is provided with a third inductive switch, the second inductive switch triggers the motor to rotate reversely when the sliding table moves to the upper limit position, so that the sliding table moves downwards, the second inductive switch completely comes out of the square discharge hole from the lowest cement mortar test piece in the square storage room when the sliding table moves to the upper limit position, and the third inductive switch triggers the motor to stop rotating when the sliding table moves downwards to the lower limit position.

Therefore, the triggering condition of the second inductive switch is that the sliding table moves to the upper limit position and the lowermost test piece completely exposes the square discharge port, that is to say, when the sliding table moves to the upper limit position, all test pieces in the square storage room can be ensured to come out from the square discharge port, and the continuity and the stability of test piece transmission are ensured. Moreover, because the cement mortar test piece at the lowest layer in the square storage room is completely discharged from the square discharge hole, the motor is triggered to rotate reversely to enable the sliding table to move downwards, and the sliding table moves downwards to drive the lifting piece extending into the square storage room to move downwards, so that the test piece between the square storage rooms can be prepared for next storage after all the test pieces between the square storage rooms are discharged from the square discharge hole, manual intervention is not needed in the design of the whole feeding part, and the whole automatic process is smoother and automatic.

8. The number of the square storage spaces is three, so that the arithmetic average value is calculated according to the flexural strength data of the three test pieces when the flexural compressive strength of the cement mortar test piece is tested. The compressive strength is calculated as an arithmetic average from the compressive strength data of the test pieces after the three test pieces are folded into six pieces. That is, according to the standards and specifications, the test of the flexural compression strength of the cement mortar test piece is performed by taking three complete cement mortar test pieces as a group, so that three square storage compartments are arranged, when the test pieces are reserved in the square storage compartments, three test pieces are arranged on the same layer, the three test pieces just correspond to one group of test, and the mechanical arm correspondingly obtains data required by one group of test after clamping the three test pieces on the uppermost layer of the three square storage compartments each time. If only two square storage rooms are arranged, two situations of one or two test pieces can be left on the uppermost layer, and then the mechanical arm can judge which situation can be used for clamping continuously, so that a complete set of tests can be performed. If only other square storage rooms are arranged, the mechanical arm is required to judge when to continuously clamp the test piece so as to complete a complete set of tests.

Drawings

FIG. 1 is a schematic three-dimensional structure of a cement mortar test piece storage and transmission device provided by the utility model;

FIG. 2 is a schematic three-dimensional structure diagram of the automatic strength testing system for cement mortar test pieces provided by the utility model;

FIG. 3 is a schematic view of the three-dimensional structure of the end effector on the robotic arm of FIG. 2;

FIG. 4 is a schematic three-dimensional structure of the transfer table of FIG. 2;

FIG. 5 is a schematic three-dimensional structure of the testing device of FIG. 2;

FIG. 6 is a schematic illustration of the placement requirements of a cement mortar test piece on a flexural tester stage;

FIG. 7 is a schematic diagram showing the placement requirements of a cement mortar test piece on a compression tester stage;

The device comprises a 1-base, a 2-mechanical arm, a 3-waste bin, a 4-end effector, a 5-middle rotary table, a 6-bending-resistant press-resistant 6, 7-test piece storage and transmission device, an 8-air compressor, a 41-clamping part, a 42-mounting plate, a 43-code scanner, a 44-camera, a 51-base, a 52-first limiting part, a 53-second limiting part, a 61-discharge chute, a 62-push rod, a 63-nozzle, a 71-switch door, a 72-vertical steel bar, a 73-horizontal steel plate, a 74-test piece storage frame, a 75-square discharge hole, a 76-first inductive switch, a 77-motor and a 78-sliding table.

Detailed Description

The utility model will now be described in detail by way of example with reference to the accompanying drawings.

Embodiment one:

Referring to fig. 1, the embodiment provides a cement mortar test piece storage and transmission device, which comprises a storage part and a feeding part, wherein the storage part is used for storing a cement mortar test piece, and the feeding part is used for vertically transmitting the cement mortar test piece stored in the storage part to a preset position.

Specifically, in the embodiment, the storage part comprises at least one square storage room, the stacked cement mortar test pieces can be accommodated in the square storage room, the freedom degree of the cement mortar test pieces in the horizontal direction is limited between the square storage rooms, and a square discharge hole is formed above the square storage room and used for discharging the cement mortar test pieces.

In this embodiment, the feeding portion includes a lifting mechanism for vertically and upwardly conveying the cement mortar test piece in the square storage compartment. So, the design of vertical transport has saved the space, makes the test piece can pile up and vertically carry in the gravity direction, compares the horizontal transport, has reduced the dislocation that the test piece probably appears in horizontal migration in-process.

Specifically, the lifting mechanism can be an electric push rod mechanism arranged at the bottom of the square storage room, and the structure is simple and compact.

Particularly, in the embodiment, the lifting mechanism is provided with another structure different from the electric push rod mechanism, and specifically comprises a lifting piece, a moving piece and a driving piece, wherein one end of the lifting piece is connected with the moving piece, the other end of the lifting piece stretches into the square storage room, the lifting piece is used for lifting a cement mortar test piece in the square storage room, the moving piece is in power connection with the driving piece, the driving piece can drive the moving piece to vertically move, and when the moving piece vertically moves upwards, the lifting piece can be driven to move upwards, so that the cement mortar test piece in the square storage room moves from bottom to top, and is discharged from the square discharge hole 75. Therefore, the lifting and vertical movement of the test piece are realized through the combination of the lifting piece, the moving piece and the driving piece, and the smooth discharging of the test piece from the square storage room is ensured.

More specifically, the lifting mechanism further comprises a guide rail and a screw rod, the moving part is a sliding table 78, the sliding table 78 is in threaded fit with the screw rod, the sliding table 78 is in sliding fit with the guide rail, the driving part is a motor 77, the motor 77 is in power connection with the screw rod, the motor 77 can drive the sliding table 78 to move vertically, the lifting part is a steel plate which is horizontally arranged and is called a horizontal steel plate 73, the square discharging hole 75 is provided with a first inductive switch 75, when the whole cement mortar test pieces stacked on the uppermost layer come out of the square discharging hole 75, the first inductive switch 76 triggers the motor to stop, when the cement mortar test pieces stacked on the uppermost layer are taken away, the first inductive switch 76 triggers the motor 77 to drive the sliding table 78 to move vertically upwards, a second inductive switch is arranged at the upper part of the guide rail, a third inductive switch is arranged at the bottom of the guide rail, the second inductive switch triggers the motor 77 to rotate reversely when the sliding table 78 moves to an upper limit position, the second inductive switch enables the sliding table 78 to move downwards when the sliding table 78 moves to the upper limit position, the cement mortar test pieces stacked on the lowermost layer in the square storing room have come out of the square discharging hole 75, and when the third inductive switch triggers the third inductive switch to move downwards to the limit position 77.

Thus, the triggering condition of the second inductive switch is that the sliding table 78 moves to the upper limit position and the lowermost test piece is completely exposed out of the square discharge hole 75, that is, when the sliding table 78 moves to the upper limit position, all test pieces between the square storage can be ensured to come out of the square discharge hole 75, and the continuity and stability of the test piece transmission are ensured. In addition, because the lowest-layer cement mortar test piece in the square storage room is completely discharged from the square discharge hole 75, the trigger motor 77 is reversed to enable the sliding table 78 to move downwards, and the sliding table 78 moves downwards to drive the lifting piece extending into the square storage room to move downwards, so that the test piece in the square storage room can be prepared for next storage after all the test pieces in the square storage room are discharged from the square discharge hole 75, manual intervention is not needed in the design of the whole feeding part, and the whole automatic process is smoother and automatic.

Embodiment two:

Referring to fig. 1 to 7, on the basis of the first embodiment, an automatic test system for strength of a cement mortar test piece is provided, which comprises a test piece storage and transmission device 7, a bending test machine, a compression test machine, a bending cleaning mechanism, a compression cleaning mechanism, a mechanical arm 2 and an upper computer, wherein:

The test piece storage and transmission device 7 is used for storing and transmitting cement mortar test pieces (or test pieces for short), the flexural testing machine is used for conducting flexural strength testing on the cement mortar test pieces, the compression testing machine is used for conducting compressive strength testing on the cement mortar test pieces, the flexural cleaning mechanism is used for cleaning an objective table of the flexural testing machine, the compressive cleaning mechanism is used for cleaning the objective table of the flexural testing machine, the mechanical arm 2 can grab the cement mortar test pieces on the test piece storage and transmission device 7 according to a preset program and put the cement mortar test pieces on the objective table of the flexural testing machine for conducting flexural strength testing, the mechanical arm 2 can grab the cement mortar test pieces which are folded into two sections after the flexural strength testing is completed to the compression testing machine for conducting compressive strength testing, and the upper computer is in signal connection with the flexural testing machine and the compression testing machine for recording flexural strength and compressive strength data of the cement mortar test pieces. The bending resistance tester and the compression resistance tester can be integrally arranged and are called a bending resistance and compression resistance machine 6.

Therefore, the automatic test system for the strength of the cement mortar test piece provided by the utility model can realize the full-automatic operation of carrying out the test on the strength of the cement mortar test piece by integrating the devices comprising the test piece storage and transmission device 7, the bending test machine, the compression test machine, the bending-resistant cleaning mechanism, the compression-resistant cleaning mechanism, the mechanical arm 2 and the upper computer, only the test piece is needed to be prepared in the test piece storage and transmission device 7, the operation process of placing the test piece, pressurizing, removing the test piece and recording data can be carried out by the mechanical arm 2 according to a preset program without being operated by an operator, after the automatic test system for the strength of the cement mortar test piece is started, the test data can be automatically uploaded to the upper computer, the operator can do other work, and the operator does not need to carry out the operation of placing the test piece, pressurizing, removing the test piece and recording data repeatedly, so that the productivity is improved, and the problem that the accuracy of a test result is influenced by the traditional manual operation is avoided. It should be noted that in the prior art, there are a bending test machine and a compression test machine for automatically uploading test data to a computer. Moreover, it can be understood that the test piece storage and transmission device 7, the anti-folding cleaning mechanism, the anti-compression cleaning mechanism and the mechanical arm 2 corresponding to the functions can be completely realized through the prior art, and the full-automatic operation of carrying out the anti-folding and anti-compression strength test on the cement mortar test piece is realized according to the technical scheme.

The shape of the square discharge port 75 is matched with the shape of the test piece, so that the test piece can be maintained in order, accurate grabbing points are provided for the mechanical arm 2, grabbing logic and movement paths of the mechanical arm 2 are simplified, and the position of the test piece is more fixed and predictable. The design reduces the searching and positioning time of the mechanical arm 2 when the test piece is grabbed, and improves the efficiency of the whole test flow.

Specifically, in this embodiment, referring to fig. 3, a code scanner 43 is disposed on the mechanical arm 2, and is configured to scan the information code on the cement mortar test piece, so as to obtain the information including the number of the cement mortar test piece. Therefore, the mechanical arm 2 can automatically acquire the identification information of the test piece, and the number of each test piece can correspond to the flexural strength and compressive strength data of the mechanical arm, so that convenience is brought to the traceability and quality management of the test piece.

In addition, in this embodiment, a camera 44 is further disposed on the mechanical arm 2, and the camera 44 can obtain the position of the cement mortar test piece on the test piece storage and transmission device 7, so as to assist in adjusting the mechanical arm 2 to adjust the pose of the end effector 4 when necessary. This enables the robot arm 2 to grasp the specimen more reliably. It should be noted that, the camera 44 is not necessary, because in the automatic testing system for strength of cement mortar test pieces, under normal conditions, the positions of the test pieces are all determined, so the mechanical arm 2 can grasp the test pieces only by running according to planned actions, and the camera 44 is arranged to grasp the mechanical arm 2 smoothly when the positions of the test pieces deviate due to unexpected situations.

Specifically, in this embodiment, the device further includes a middle rotary table 5, and the mechanical arm 2 can grasp and place the test piece folded into two sections after the flexural strength test is completed in accordance with a preset procedure on the middle rotary table 5, and then grasp and place the two half test pieces on the middle rotary table 5 on a compression testing machine respectively for compression strength test.

Referring to fig. 6 and 7, since the placing requirements of the test piece on the stage of the bending tester and the stage of the compression tester are different, specifically, on the stage of the bending tester, the scraping plane of the test piece (the plane with the diagonal line drawn in fig. 6 and 7 is the scraping plane) is to be directed forward, whereas on the stage of the compression tester, the scraping plane of the test piece is to be directed rightward, and at the same time, if the end effector 4 of the mechanical arm 2 grips the test piece by means of the gripping jaw, and the gripping jaw grips the test piece on the stage of the bending tester in the left-right direction, the gripping jaw easily interferes with the structure in the left-right direction of the bending tester due to the structure of the bending tester, and it is convenient to grip the test piece on the bending tester from the up-down direction. If the clamping jaw clamps the test piece from the up-down direction of the objective table of the bending test machine, the mechanical arm 2 is used for placing the test piece clamped in the up-down direction on the objective table of the bending test machine, the scraping plane of the test piece faces to the right, the clamping jaw is in the up-down direction, the clamping jaw which is distributed up and down is easy to interfere with the structure in the up-down direction of the bending test machine, and at the moment, the mechanical arm 2 cannot enable the clamping jaw to be changed into the left-right direction from the up-down direction through rotating 90 degrees, so that the interference of the clamping jaw and the structure in the up-down direction of the bending test machine is avoided, and the scraping plane of the test piece clamped up-down by the clamping jaw can also rotate by 90 degrees as soon as the clamping jaw rotates, so that the test piece is placed on the objective table of the bending test machine, and the requirement of the scraping plane facing to the right cannot be met. Through setting up the transfer table 5, the clamping jaw of arm 2 can be with the test piece on the bending test machine through pressing from both sides about getting earlier and place on the transfer table 5, then the end effector 4 on the arm 2 press from both sides the plane of scraping of the test piece on the transfer table 5 again and with scrape the plane relative face, then place on the objective table of compression test machine, accomplish compression test. That is, the bending tester is easy to interfere in the left-right direction, the vertical clamping is required, the compression tester is easy to interfere in the vertical direction, and the clamping jaw is required to be positioned in the left-right direction to smoothly place the test piece. The vertical clamping is changed into the horizontal clamping through rotation, the direction of the scraping plane of the test piece on the compression testing machine is not satisfied, the middle rotary table 5 is arranged, the test piece on the bending testing machine can be clamped in the vertical direction and placed on the middle rotary table 5, then the clamping jaw clamps the scraping plane of the test piece on the middle rotary table 5 and the surface opposite to the scraping plane, so that the mechanical arm 2 can rotate to enable the scraping plane to be in a right state, at the moment, the clamping jaw is distributed left and right, and then the test piece can be smoothly placed on the objective table of the compression testing machine for compression testing. That is, the function of the transfer table 5 is similar to that of providing the clamping jaw of the mechanical arm 2 with an opportunity to change the clamping mode, so that the test piece can be transferred from the bending test machine to the compression test machine in the clamping mode for compression test.

Specifically, in this embodiment, referring to fig. 4, the transfer table 5 includes a first limiting portion 52, the first limiting portion 52 is provided with a horizontal support, the width of the horizontal support is smaller than that of the cement mortar test piece, second limiting portions 53 are provided at two lateral sides of the horizontal support, the height of the second limiting portions 53 is greater than that of the first limiting portion 52, the second limiting portions 53 can move along the lateral direction of the horizontal support, the horizontal support is used for placing the cement mortar test piece and limiting the upper and lower positions of the cement mortar test piece, the second limiting portions 53 are used for limiting the left and right positions of the cement mortar test piece placed on the horizontal support, the mechanical arm 2 can grasp and place the cement mortar test piece on the horizontal support after completing the flexural strength test according to a preset program, and grasp and place the cement mortar test piece on the horizontal support piece on a compression testing machine for compression strength test. Therefore, the test piece on the middle rotary table 5 always has a certain position because the middle rotary table 5 has a leveling function on the test piece, and therefore, the mechanical arm 2 can realize the automation of the whole flow only by executing corresponding actions according to a program.

Specifically, in the present embodiment, the test piece gripped by the robot arm 2 on the stage of the bending machine is placed on the intermediate turntable 5 in the direction in which the scraping plane faces upward, then, when the robot arm 2 grips the test piece on the intermediate turntable 5, the scraping plane of the test piece and the plane opposite to the scraping plane are gripped, and finally, the scraping plane of the test piece is placed on the stage of the bending machine to the right.

More specifically, in this embodiment, the middle turn table 5 further includes a base 51, the first limiting portion 52 is fixed on the base 51, the first limiting portion 52 includes a bracket, the bottom of the bracket is fixed with the base 51, two square steel plates are horizontally fixed at the top of the bracket as horizontal supporting members, a distance is set between the two square steel plates at intervals, an opening is formed, and the maximum width between the two square steel plates is slightly smaller than the width of the test piece. The second limiting parts 53 are arranged on the base 51, the middle rotary table 5 is provided with a total of two second limiting parts 53, each second limiting part 53 comprises two square steel plates and power for driving the two steel plates to move, the power can be pneumatic or electric or hydraulic driving, the two movable steel plates are vertically and symmetrically distributed on two sides of the horizontal supporting piece in the first limiting part 52 and can move oppositely or back to each other, when two sections of test pieces are horizontally placed on the top surface of the horizontal supporting piece, the maximum width between the two square steel plates is slightly smaller than the width of the test pieces, when the two movable steel plates move oppositely, the test pieces can be clamped (when the mechanical arm 2 clamps the test pieces on the middle rotary table 5, the clamping of the two movable steel plates on the middle rotary table 5 can be loosened, the clamping of the test pieces on the mechanical arm 2 is prevented from being influenced), and the test pieces on the middle rotary table 5 can be clamped conveniently.

It should be noted that, in a possible embodiment, the middle turntable 5 may not be provided, because the mechanical arm 2 may grasp an object by vacuum suction in addition to grasping a specimen by means of clamping, so that the mechanical arm 2 may directly adsorb a scratch plane forward of the specimen when grasping the specimen on the stage of the bending test machine, then place the adsorbed specimen on the stage of the compression test machine in a direction of the scratch plane to the right, at this time, the middle turntable 5 may be omitted, in addition, the mechanical arm 2 may grasp the specimen by a fingertip, because the fingertip structure is small, so that the mechanical arm 2 may grasp the scratch plane forward and a plane opposite to the fingertip directly by the fingertip when grasping the specimen on the stage of the bending test machine, and then place the grasped specimen on the stage of the compression test machine in a direction of the scratch plane to the right, at this time, the middle turntable 5 may also be omitted. Moreover, the mechanical arm 2 may even hook the test piece on the stage of the flexural testing machine, then clamp the scraping plane of the object and the plane opposite to the scraping plane by using the mechanical arm 2, and finally place the grabbed test piece on the stage of the flexural testing machine with the scraping plane facing the right direction, at this time, the middle turntable 5 may also be omitted.

More specifically, in the present embodiment, referring to fig. 2, the bottom of the mechanical arm 2 is disposed on the base 1, and the base 1 is provided with a storage space, thereby improving the space utilization. The anti-fracture cleaning mechanism and the anti-compression cleaning mechanism comprise a nozzle 63 connected with an air compressor 8, the air compressor 8 provides air for the nozzle 63, the nozzle 63 provides air for cleaning, the anti-compression cleaning mechanism further comprises a push rod 62, the push rod 62 can push a crushed test piece on a stage of the anti-compression testing machine to an inclined discharge chute 61, and then the crushed test piece flows to the waste bin 3 through the discharge chute 61.

In addition, in the present embodiment, referring to fig. 1 and 2, the storage part is integrally formed in a structural form of a specimen storage rack 74, and includes a peripheral housing, and square compartments formed by a plurality of vertical steel bars 72 arranged in the housing at intervals, three square compartments in total, one square compartment corresponding to one square storage compartment, the cross-sectional area of the square storage compartment being slightly larger than that of the cement mortar specimen, and three stacks of cement mortar specimens being reserved in total between three side-by-side square storage compartments. Thus, because the flexural strength of the cement mortar test piece is measured, the arithmetic average value is calculated according to the flexural strength data of the three test pieces. The compressive strength is calculated as an arithmetic average from the compressive strength data of the test pieces after the three test pieces are folded into six pieces. That is, according to the standards and specifications, the test of the flexural compression strength of the cement mortar test piece is performed by taking three complete cement mortar test pieces as a group, so that three square storage compartments are arranged, when the test pieces are reserved in the square storage compartments, three test pieces are arranged on the same layer, the three test pieces just correspond to one group of test, and the mechanical arm correspondingly obtains data required by one group of test after clamping the three test pieces on the uppermost layer of the three square storage compartments each time. If only two square storage rooms are arranged, two situations of one or two test pieces can be left on the uppermost layer, and then the mechanical arm can judge which situation can be used for clamping continuously, so that a complete set of tests can be performed. If only other square storage rooms are arranged, the mechanical arm is required to judge when to continuously clamp the test piece so as to complete a complete set of tests.

Moreover, a switch door 71 is provided on at least one surface of the housing of the storage section, and a test piece can be placed between square storage chambers by opening the switch door 71. Referring to fig. 1, in the present embodiment, the lifting member is formed of a horizontal steel plate 73, and the horizontal steel plate 73 extends into the square storage space from between the spaces of the vertical steel bars 72. Also, in the present embodiment, in order to better demonstrate the structure of the square magazine, a part of the housing of the magazine is not shown. Referring to fig. 1, the first inductive switch 76 is disposed at a position close to the square discharge hole 75, where the first inductive switch 76 may be a proximity switch, and when the test piece at the uppermost layer of the three square storage compartments is grasped by the mechanical arm 2, the motor 77 drives the sliding table 78 to further rise. The second and third inductive switches may be proximity switches.

More specifically, in the present embodiment, referring to fig. 2 and 3, the mechanical arm 2 grabs a test piece by the end effector 4, and the grabbing manner is clamping, the end effector 4 includes a mounting plate 42, one surface of the mounting plate 42 is used for being connected with the mechanical arm 2, two clamping portions 41 and a code scanner 43 and a camera 44 located between the two clamping portions 41 are mounted on the other surface of the mounting plate 42, each clamping portion 41 is provided with two clamping plates and power for driving the two clamping plates to move, and the power can be pneumatic, electric or hydraulic. The mounting plate 42 is provided with two clamping parts 41, so that a test piece folded into two parts on the bending test machine can be clamped on the middle rotary table 5 at one time, and the efficiency is improved.

Embodiment III:

On the basis of the second embodiment, the automatic testing method for the strength of the cement mortar test piece is provided, and comprises the following steps:

The mechanical arm 2 grabs a cement mortar test piece in the test piece storage and transmission device 7 and places the cement mortar test piece on an objective table of the flexural testing machine for flexural strength testing, so as to obtain flexural strength C1 and transmit the flexural strength C1 to the upper computer;

After the cement mortar test piece is broken into two parts for breaking strength test and is grabbed away by the mechanical arm 2, the anti-breaking cleaning mechanism cleans the objective table of the anti-breaking tester;

The mechanical arm 2 grabs a broken section of cement mortar test piece and is placed on an objective table of a compression testing machine to conduct compression strength testing, compression strength C2 is obtained, and the compression strength C2 is transmitted to an upper computer;

after the compressive strength C2 is obtained, the anti-compression cleaning mechanism cleans the objective table of the anti-compression testing machine;

The mechanical arm 2 grabs another broken cement mortar test piece and is placed on an objective table of the compression testing machine to conduct compression strength testing, compression strength C3 is obtained, and the compression strength C3 is transmitted to the upper computer;

After the compressive strength C3 is obtained, the anti-compression cleaning mechanism cleans the objective table of the anti-compression testing machine;

and fourthly, repeating the first step to the third step to finish the automatic strength test of the cement mortar test pieces with preset numbers.

Specifically, if the mechanical arm 2 grabs the test piece by clamping, in the second step, the mechanical arm 2 grabs two broken cement mortar test pieces on the stage of the bending test machine and places the two broken cement mortar test pieces on the middle rotary table 5, after the middle rotary table 5 levels the two cement mortar test pieces in the vertical direction and the horizontal direction, the mechanical arm 2 grabs one cement mortar test piece on the middle rotary table 5 again to carry out compressive strength test on the stage of the compression test machine to obtain compressive strength C2 and transmits the compressive strength C2 to the upper computer, and in the third step, the mechanical arm 2 grabs another cement mortar test piece on the middle rotary table 5 to carry out compressive strength test on the stage of the compression test machine to obtain compressive strength C3 and transmits the compressive strength C3 to the upper computer.

More specifically, if the specimen storage and transfer device 7 is provided with a square stock room, and the robot arm 2 grips the specimen by gripping, and the intermediate turntable 5 is provided, it is possible to perform the following steps with reference to:

step 1, placing cement mortar test pieces in a square storage room in sequence, and clicking on an upper computer to start a test;

Step 2, a horizontal steel plate in the square storage room rises along with the sliding table 78 until the cement mortar test piece at the uppermost layer of the square storage room completely comes out of the square discharge hole 75;

Step 3, the mechanical arm 2 clamps the uppermost layer of cement mortar test piece to the objective table of the flexural testing machine for flexural testing, and the flexural testing machine is started for flexural strength testing, so that flexural strength C1 is obtained and transmitted to the upper computer;

Step 4, the mechanical arm 2 clamps the two broken test pieces to a first limiting part of the transfer table 5, the second limiting part levels the two test pieces, and a nozzle 63 in the anti-folding cleaning mechanism sprays gas to clean an objective table of the anti-folding tester;

Step 5, the mechanical arm 2 clamps a section of test piece on the middle rotary table 5 to an object stage of the compression testing machine for compression strength testing, the compression testing machine is started for compression strength testing to obtain compression strength C2 and the compression strength C is transmitted to the upper computer, a pushing rod 62 in the compression cleaning mechanism pushes the crushed test piece to a discharge chute 61, the crushed test piece flows to a waste material barrel 3 along the discharge chute 61, and a nozzle 63 in the compression testing machine sprays gas to clean the object stage of the compression testing machine;

Step 6, repeating the step 5 to obtain the compressive strength C3 of another test piece, and then moving the mechanical arm 2 to an initial position to prepare the next test piece at the clamping-type discharge hole 75;

Step 7, repeating the steps 3-6, so that a total of three test pieces which are the uppermost layers and are discharged from the square discharging holes 75 in the three square storage chambers are all grabbed by the mechanical arm 2, and the bending strength test and the compressive strength test are all completed;

And 8, if the square storage room is provided with test pieces, repeating the steps 2-7, and if all the test pieces in the square storage room are tested, moving the sliding table 78 downwards to the lower limit position, preparing the next feeding of the square storage room, and ending the test.

In summary, the above embodiments are only preferred embodiments of the present utility model, and are not intended to limit the scope of the present utility model. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model, for example, replacement of the bolt connection in the present embodiment with the stud connection should be included in the protection scope of the present utility model.

Claims

1. A cement mortar specimen storage and transmission device, characterized by comprising a storage portion and a feeding portion;

The material storage part is used to store cement mortar test pieces;

The feeding part is used to vertically transport the cement mortar test pieces stored in the storage part to a preset position;

The material storage section includes at least one square material storage room;

The square material storage room can accommodate stacked cement mortar specimens, the square material storage room limits the horizontal freedom of the cement mortar specimens, and a square discharge port is provided above the square material storage room for discharging the cement mortar specimens;

The feeding part includes a lifting mechanism, and the lifting mechanism is used to vertically transport the cement mortar test pieces in the square storage room upward.

2. A cement mortar specimen storage and transmission device according to claim 1, characterized in that the lifting mechanism is an electric push rod mechanism arranged at the bottom of the square storage room.

3. The cement mortar specimen storage and transmission device according to claim 1, wherein the lifting mechanism comprises a lifting member, a moving member and a driving member;

One end of the lifting member is connected to the moving member, and the other end extends into the square material storage room, and the lifting member is used to lift the cement mortar test piece in the square material storage room;

The moving member is in power connection with the driving member, and the driving member is capable of driving the moving member to move vertically;

When the moving part moves vertically upward, it can drive the lifting part to move upward, so that the cement mortar test piece in the square storage room moves from bottom to top and is discharged from the square discharge port.

4. A cement mortar specimen storage and transmission device according to claim 3, characterized in that the lifting mechanism further comprises a guide rail and a screw rod;

The movable member is a slide, the slide is threadedly engaged with the lead screw, and the slide is slidably engaged with the guide rail;

The driving member is a motor, which is dynamically connected to the screw rod and can drive the slide to move vertically;

The square discharge port is provided with a first induction switch. When the cement mortar specimens stacked on the top layer are completely discharged from the square discharge port, the first induction switch triggers the motor to stop. After the cement mortar specimens stacked on the top layer are removed, the first induction switch triggers the motor to drive the slide to move vertically upward.

5. The cement mortar specimen storage and transmission device according to claim 4, wherein a second induction switch is provided on the upper portion of the guide rail, and a third induction switch is provided on the bottom portion of the guide rail;

When the slide moves to the upper limit position, the second induction switch triggers the motor to reverse, causing the slide to move downward; when the slide moves to the upper limit position, the cement mortar test piece at the bottom layer in the square storage room has been completely ejected from the square discharge port;

When the slide moves downward to the lower limit position, the third induction switch triggers the motor to stop.

6. A cement mortar specimen storage and transmission device according to any one of claims 1 to 5, characterized in that there are three square storage rooms.