CN106077169A - A kind of intelligent numerical control bender - Google Patents

Abstract

The invention discloses an intelligent numerical control bending machine, which belongs to the technical field of bending machines. The present invention includes a frame, a workbench, a bending device and a base. The frame and the bending device are arranged on the base, and also include a blocking device, a blanking device, a feeding device, a positioning device, a feeding device and a numerically controlled System; the workpiece is transported to the workbench by the feeding device, and moved on the workbench by the unloading device to complete the positioning of the workpiece in the X-axis direction; the stopper device cooperates with the positioning device to complete the Y-axis positioning of the workpiece The feeding device transports the workpiece to the processing station for bending processing, and controls the rotation of the workpiece to perform multilateral bending. After the processing is completed, the unloading device pushes the workpiece to leave the workbench; the numerical control system completes the automation of the entire bending process control. The invention has high working efficiency and high degree of automation, can realize full-automatic multilateral forward and reverse bending of workpieces, is convenient to use, and can fully liberate labor force.

Description

An Intelligent CNC Bending Machine

technical field

The invention belongs to the technical field of bending machines, and more specifically relates to an intelligent numerical control bending machine.

Background technique

A bending machine is a machine capable of bending thin plates and is mainly used in the sheet metal processing industry. The sheet metal bending machine can use simple molds to bend metal sheets in a straight line at various angles to obtain sheet metal parts with complex shapes. It is easy to operate and low in operating costs. The machine of choice for sheet metal processing is widely used.

When the bending machine processes the workpiece, it usually needs to complete the four steps of loading, positioning, bending and blanking. The current bending machine operations mostly use manual methods to complete the operations of loading, positioning and blanking. The operation method has the disadvantages of low processing efficiency, safety accidents, and poor product quality. Especially when the bending parts are large and heavy, the number and physical strength of the operators are required, and the traditional bending method It often needs multiple repeated corrections between bends, which is extremely inefficient.

The existing intelligent CNC bending machine, such as Chinese patent number ZL 201520797080.8, the date of authorization announcement is March 2, 2016, and the name of the invention is: a fully automatic CNC bending machine; the installation base of the bending machine in this application The feeding device is fixedly installed on the front, and the feeding device includes a support frame, a feeding platform, a cylinder, a push rod and a material storage mechanism. The front part of the top surface is integrally provided with a boss, the front end of the boss is horizontally installed with a cylinder, the piston rod of the cylinder is fixedly installed with a push rod, the left and right ends of the top surface of the feeding platform are respectively provided with dovetail grooves, and the dovetail grooves are located at the bottom of the cylinder. On the outside, the material storage mechanism can be adjusted and installed in the installation groove of the feeding platform; the application is to install the feeding device at the front of the bending machine base, and use the cylinder to push the workpiece to complete the feeding operation, but the application needs to manually move a single workpiece Place it on the feeding device and adjust the nut to position and lock the workpiece. After the bending operation of a single side of the workpiece is completed, it is necessary to manually adjust the nut to perform the blanking of the workpiece or adjust the nut again to perform the bending operation of the other sides of the workpiece; therefore, the The working efficiency of the bending machine disclosed in the application is still very low, and it is not used to realize the fully automatic feeding operation of the workpiece and the full liberation of the labor force.

Another example is the Chinese patent number ZL201520559360.5, the date of authorization announcement is January 27, 2016, and the name of the invention is: fully automatic numerical control bending machine; A bending device and a blanking device; the feeding device includes a feeding platform, and a feeding cylinder is arranged on the feeding platform, and the feeding cylinder is connected with a feeding push plate; the bending device includes an upper working platform, a lower working platform and a booster cylinder, The upper working platform is connected with the piston of the pressurized cylinder, and the lower working platform is connected with the feeding platform correspondingly. The upper working platform is equipped with a pressurized cylinder and an upper mold, and the lower working platform is equipped with a lower mold matched with the upper mold; the unloading device Including unloading cylinder and unloading chute. The application uses the cylinder to drive the feeding push plate to push the bottom material, and combines the position signal of the rear baffle to complete the feeding operation, and uses the cylinder to drive the blanking push plate to push the bending part to complete the blanking operation, but the application does not set bending The material pressing device in the operation, the material is simply pushed from the feeding box between the upper and lower knives of the bending machine, the bending angle is not easy to control, and this method can only be used for unilateral and unidirectional bending of small-sized materials bend.

Combined with the above analysis, it can be seen that the existing bending machines have a low degree of automation, and most of them need manual operations to complete loading, positioning and unloading, which cannot fully liberate the labor force. An intelligent CNC bending machine is urgently needed to realize processing Fully automatic multilateral forward and reverse bending of parts.

Contents of the invention

1. The technical problem to be solved by the invention

The purpose of the present invention is to overcome the problem that the existing bending machine has a low degree of automation, most of which require manual operations such as loading, positioning and unloading, and cannot fully liberate the labor force, and provides an intelligent numerical control bending machine; The intelligent numerical control bending machine of the present invention has high working efficiency and high degree of automation, can realize full-automatic multilateral forward and reverse bending of workpieces, is easy to use, and can fully liberate labor force.

2. Technical solution

In order to achieve the above object, the technical scheme provided by the invention is:

An intelligent numerical control bending machine of the present invention includes a frame, a workbench, a bending device and a base. The frame and the bending device are arranged on the base, and also include a blocking device, a feeding device, positioning device, feeding device and numerical control system; the workpiece is transported to the workbench by the feeding device, and is clamped and moved on the workbench by the unloading device to complete the positioning of the workpiece in the X-axis direction; the stopper device and the positioning device Cooperate to complete the positioning of the workpiece in the Y-axis direction; the feeding device transports the workpiece to the processing station for bending processing, and controls the rotation of the workpiece to perform multilateral bending. After the processing is completed, the unloading device pushes the workpiece away from the workbench; The CNC system completes the automatic control of the entire bending process.

Furthermore, the stopper device, the blanking device and the positioning device are arranged on the workbench, the stopper device and the blanking device are arranged parallel to each other, and the positioning device is perpendicular to the stopper device and the blanking device; the described The feeding device is arranged on one side of the workbench, and the feeding device is arranged under the workbench.

Furthermore, the material retaining device includes a material retaining servo motor, a material retaining plate connecting shaft and a material retaining plate, the retaining servo motor is connected to one end of the material retaining plate connecting shaft, and the material retaining plates are arranged at equal intervals on the material retaining plate connecting shaft.

Further, the blanking device includes a blanking screw, a blanking trolley, and a blanking servo motor, the blanking servo motor drives the blanking screw to rotate, and the blanking trolley moves axially along the blanking screw; The unloading trolley is provided with a clamping manipulator and a proximity switch of the clamping manipulator.

Further, the feeding device includes a feeding bracket, a feeding X-axis control device, a feeding Y-axis control device, a feeding Z-axis control device and an adsorption device, and the feeding X-axis control device is fixedly installed on the feeding On the top of the support, the feeding Y-axis control device and the feeding X-axis control device are perpendicular to each other in the horizontal direction; the feeding Z-axis control device and the feeding Y-axis control device are vertically perpendicular to each other; the adsorption device includes a suction cup The bracket and the air suction cup installed at the bottom of the suction cup bracket, the adsorption device is connected with the feeding Z-axis control device, the feeding X-axis control device, the feeding Y-axis control device and the feeding Z-axis control device cooperate with the transmission to control the adsorption device at x, Move in the y and z directions.

Furthermore, the feeding X-axis control device includes a feeding X-axis servo motor, a feeding X-axis screw, and a feeding X-axis slider, and the feeding X-axis servo motor drives the feeding X-axis screw to rotate, The feeding X-axis slider moves axially along the feeding X-axis lead screw; the feeding Y-axis control device is fixedly installed on the feeding X-axis slider, and the feeding Y-axis control device includes a feeding Y-axis servo motor , feeding Y-axis screw, feeding Y-axis slider, the feeding Y-axis servo motor drives the feeding Y-axis screw to rotate, and the feeding Y-axis slider moves axially along the feeding Y-axis screw; The material Z-axis control device is connected with the material loading Y-axis slider. The material loading Z-axis control device includes a material Z-axis servo motor, a material Z-axis screw, a material Z-axis slider, and a material Z-axis servo motor drive. The feeding Z-axis screw rotates, and the feeding Z-axis slider moves axially along the feeding Z-axis screw; the suction cup bracket is connected with the feeding Z-axis slider.

Further, the positioning device includes a positioning slider, a positioning screw bevel gear, a positioning servo motor, a positioning servo motor bevel gear, and a positioning screw, and two positioning screw are arranged on the left and right sides of the positioning servo motor , the bevel gear of the positioning screw is meshed with the bevel gear of the positioning servo motor, and each positioning screw is provided with a positioning slider; the positioning slider is provided with a positioning proximity switch, a positioning spring, a rubber block, and a rubber block The positioning spring is connected with the positioning slider, and the positioning proximity switch is fixedly installed on the positioning slider.

Furthermore, the feeding device includes a feeding X-axis control device, a feeding Z-axis control device and a rotating mechanism, and the feeding X-axis control device includes a feeding X-axis screw, a feeding X-axis slider, a feeding X-axis servo motor, and a feeding X-axis control device. The X-axis servo motor drives the feeding X-axis screw to rotate, and the feeding X-axis slider moves axially along the feeding X-axis screw; the feeding Z-axis control device is fixed on the feeding X-axis slider, and the feeding Z-axis control device is connected to the feeding X-axis The axis control device is perpendicular to the vertical direction. The feeding Z-axis control device includes a feeding Z-axis servo motor, a feeding Z-axis slider, and a feeding Z-axis screw. The feeding Z-axis servo motor drives the feeding Z-axis screw to rotate. The shaft slider moves axially along the feeding Z-axis lead screw; the rotating mechanism includes an electromagnet, an electromagnet connecting rod and an electromagnet servo motor. One end of the electromagnet connecting rod is fixedly connected with the electromagnet, and the other end is connected with the electromagnet servo motor. , The electromagnet servo motor is fixedly installed on the feeding Z-axis slider.

Furthermore, the frame includes a frame rotating shaft, an upper pressing knife, and an upper mold hydraulic cylinder, the frame is connected to the base through the frame rotating shaft, and the upper pressing knife is installed on the lower part of the workpiece processing end of the frame through a nut , the two ends of the hydraulic cylinder of the upper mold are respectively connected with the frame and the base; Axis hydraulic cylinder, the C-type tool post is connected to the main rotating shaft through the auxiliary rotating shaft, the two ends of the Z-axis hydraulic cylinder are respectively connected to the C-shaped tool post and the base, and one end of the X-axis hydraulic cylinder is connected to the main rotating shaft through the X-axis hydraulic cylinder rotating shaft. The main rotating shaft is connected, and the other end is connected with the base.

A kind of method that utilizes numerical control bending machine to carry out plate bending of the present invention, its steps are:

Step 1. According to the shape of the workpiece, adjust the position and gap of the upper pressing knife, and store the blank of the workpiece in the loading bracket;

Step 2. The negative pressure adsorption of the feeding device puts the workpiece into the middle of the clamping manipulator of the unloading trolley, and the unloading trolley transports the workpiece to a suitable position on the workbench to complete the positioning of the workpiece in the X-axis direction, and then the unloading trolley and loading return the device;

Step 3. The stopper device controls the stopper plate to rotate to be higher than the plane of the worktable, and the positioning slider pushes the workpiece to contact with the stopper plate to complete the positioning of the workpiece in the Y-axis direction;

Step 4. Position the electromagnet of the feeding device to the center of the workpiece, and electromagnetically absorb the workpiece, and then return the stopper and the positioning slider;

Step 5. The electromagnet drives the workpiece to the processing station for bending processing, and controls the rotation of the workpiece to perform multilateral bending;

Step 6. After the processing is completed, the electromagnet is de-energized and separated from the workpiece, and the blanking trolley pushes the workpiece away from the workbench, and then the blanking trolley and the electromagnet return to their positions, and the fully automatic multilateral forward and reverse bending process of a single workpiece is completed .

3. Beneficial effect

Compared with the existing known technology, the technical solution provided by the invention has the following remarkable effects:

(1) An intelligent numerical control bending machine of the present invention can realize the functions of automatic grasping, automatic positioning and feeding, automatic bending, automatic rotation and multilateral bending of sheet metal processing parts, without manual intervention, it can automatically It is easy to operate and easy to operate, which realizes the full liberation of the labor force and effectively avoids the occurrence of safety accidents;

(2) An intelligent numerical control bending machine of the present invention, the workpiece is clamped by the blanking device and moved on the workbench to complete the positioning of the workpiece in the X-axis direction; the stopper device cooperates with the positioning device to complete the Y-axis direction of the workpiece Positioning; the feeding device transports the workpiece to the processing station for bending processing, and controls the rotation of the workpiece to perform multilateral bending. It does not need to manually adjust the position of the workpiece repeatedly. The positioning is accurate and in place at one time, which not only reduces the cost, but also reduces The time of workpiece positioning;

(3) A kind of intelligent numerical control bending machine of the present invention, the movement of its blocking device, unloading device, positioning device, feeding device and feeding device is realized by the movement of servo motor driven lead screw, which is convenient for unified control, and the structure Simple, low failure rate, high sheet bending efficiency;

(4) An intelligent numerical control bending machine of the present invention adopts a hydraulic circuit combined with a numerical control system, which can automatically compensate the angle of workpieces with different material thicknesses, and the user can intuitively compare the material information and the angle information to be bent. Editing and input, secondly, the bending process of the workpiece is all automatically completed by the CNC system, which improves the machining accuracy and work efficiency;

Description of drawings

Fig. 1 is the three-dimensional schematic diagram of numerical control bending machine in the present invention;

Fig. 2 is the top view of numerical control bending machine in the present invention;

Fig. 3 is the sectional view of numerical control bending machine in the present invention;

Fig. 4 is the three-dimensional structure schematic diagram of feeding device among the present invention;

Fig. 5 is the front view of feeding device among the present invention;

Fig. 6 is the schematic diagram of the three-dimensional structure of the unloading device in the present invention;

Fig. 7 is the schematic diagram of the three-dimensional structure of the blocking device in the present invention;

Fig. 8 is a schematic structural view of a baffle plate in the present invention;

Fig. 9 is a schematic diagram of the three-dimensional structure of the positioning device in the present invention;

Fig. 10 is the structural representation of feeding device among the present invention;

Fig. 11 is a schematic structural view of the hydraulic circuit system in the present invention;

Fig. 12 is a block diagram of the numerical control system in the present invention.

Explanation of the symbols in the figure:

1. Frame; 11. Rotary shaft of the frame; 12. Upper pressing knife; 13. Upper mold hydraulic cylinder;

2. Material retaining device; 21. Material retaining servo motor; 22. Material retaining plate connecting shaft; 23. Material retaining plate; 231. Material retaining block mounting plate; 232. Material retaining block; ;

3. Unloading device; 31. Unloading screw; 32. Unloading trolley; 321. Clamping manipulator; 322. Proximity switch for clamping manipulator; 33. Unloading servo motor;

4. Feeding device; 41. Feeding bracket; 42. Storage front baffle; 43. Storage left baffle; 44. Storage platform; 45. Feeding X-axis control device; 451. Feeding X-axis servo Motor; 452, feeding X-axis lead screw; 453, feeding X-axis slider; 46, feeding Y-axis control device; 461, feeding Y-axis servo motor; 462, feeding Y-axis screw; 463, upper Material Y-axis slide block; 47. Feeding Z-axis control device; 471. Feeding Z-axis servo motor; 472. Feeding Z-axis screw; 473. Feeding Z-axis slider; 48. Adsorption device; 481. Suction cup Bracket; 482, air suction cup;

5. Working table; 51. Lower pressing knife;

6, positioning device; 61, positioning slider; 611, positioning proximity switch; 612, positioning spring; 613, rubber block; 62, positioning screw bevel gear; 63, positioning servo motor; 64, positioning servo motor bevel gear ; 65, positioning lead screw;

7. Bending device; 71. C-type tool holder; 711. Upper knife; 712. Lower knife; 72. Z-axis hydraulic cylinder; 73. Secondary rotating shaft; 74. Main rotating shaft; 75. X-axis hydraulic cylinder rotating shaft ; 76. X-axis hydraulic cylinder;

8. Base;

9. Feeding device; 91. Feeding X-axis control device; 911. Feeding X-axis screw; 912. Feeding X-axis slider; 913. Feeding X-axis servo motor; 92. Feeding Z-axis control device; 921. Feeding Z-axis Servo motor; 922, feeding Z-axis slider; 923, feeding Z-axis screw; 93, rotating mechanism; 931, electromagnet; 932, electromagnet connecting rod; 933, electromagnet servo motor;

1a, liquid level sensor; 1b, temperature sensor; 1c, filter; 1d, hydraulic pump; 1e, pressure sensor; 1f, stop valve; 1g, pressure gauge; 1h, locking circuit; 1i, differential pressure switch; 1j, Balance circuit; 1k-1o, hydraulic control valve.

detailed description

In order to further understand the content of the present invention, the present invention will be described in detail in conjunction with the accompanying drawings and embodiments.

Example 1

Combining Figure 1 and Figure 2, an intelligent numerical control bending machine of this embodiment includes a frame 1, a blocking device 2, a feeding device 3, a feeding device 4, a workbench 5, a positioning device 6, and a bending device 7. Base 8, feeding device 9 and numerical control system. The frame 1 and the bending device 7 are arranged on the base 8, the workbench 5 is fixedly connected with the base 8, the stopper device 2, the blanking device 3 and the positioning device 6 are arranged on the workbench 5, the stopper device 2 Set parallel to each other with the unloading device 3, the positioning device 6 is perpendicular to the blocking device 2 and the unloading device 3; . The workpiece is transported to the workbench 5 by the feeding device 4, and moved on the workbench 5 by clamping the unloading device 3 to complete the positioning of the workpiece in the X-axis direction; the stopper device 2 cooperates with the positioning device 6 to complete the workpiece Positioning in the Y-axis direction; the feeding device 9 transports the workpiece to the processing station for bending processing, and controls the rotation of the workpiece to perform multilateral bending. After the processing is completed, the unloading device 3 pushes the workpiece away from the workbench 5; the numerical control system Complete the automatic control of the whole bending process.

The frame 1 includes a frame rotating shaft 11, an upper pressing knife 12, and an upper mold hydraulic cylinder 13. The frame 1 is connected with the base 8 through the frame rotating shaft 11, and the upper pressing knife 12 is installed on the frame 1 through a nut. The lower part of the workpiece processing end, the upper part of the left end of the workbench 5 is equipped with a lower pressing knife 51, and the two ends of the upper mold hydraulic cylinder 13 are connected with the frame 1 and the base 8 respectively.

Referring to Fig. 7 and Fig. 8, the described stopper device 2 includes a stopper servo motor 21, a stopper connecting shaft 22 and a stopper 23, the stopper servo motor 21 is connected with one end of the stopper connection shaft 22, and the stopper The material plates 23 are arranged at equal intervals on the connecting shaft 22 of the material baffle plate. The material retaining plate 23 includes a material retaining block mounting plate 231, a material retaining block 232, a material retaining plate connecting shaft through hole 233, and the material retaining plate 23 is connected to the material retaining plate connecting shaft 22 through the material retaining plate connecting shaft through hole 233 Fixedly connected, the material blocking block 232 is connected with the material blocking block mounting plate 231 through a nut.

Referring to Figure 6, the blanking device 3 includes a blanking screw 31, a blanking trolley 32, and a blanking servo motor 33. The blanking servo motor 33 drives the blanking screw 31 to rotate, and the blanking trolley 32 moves along the blanking wire. The bar 31 moves axially; the blanking trolley 32 is provided with a clamping manipulator 321 and a clamping manipulator proximity switch 322 .

Referring to Fig. 4 and Fig. 5, the described feeding device 4 includes a feeding bracket 41, a storage front baffle 42, a storage left baffle 43, a storage platform 44, a feeding X-axis control device 45, a feeding Y Axis control device 46, material loading Z-axis control device 47 and adsorption device 48, the front baffle plate 42 of the storage is fixedly installed on the inner back of the feeding bracket 41, and the left side baffle plate 43 of the storage material is fixedly installed on the inside of the loading bracket 41. On the left side of the interior, the material storage platform 44 is fixedly installed on the bottom surface of the feeding bracket 41 .

The feeding X-axis control device 45 is fixedly installed on the top of the feeding bracket 41. The feeding X-axis control device 45 includes a feeding X-axis servo motor 451, a feeding X-axis screw 452, and a feeding X-axis slide block 453. The X-axis servo motor 451 drives the feeding X-axis screw 452 to rotate, and the feeding X-axis slider 453 moves axially along the feeding X-axis screw 452 . The feeding Y-axis control device 46 is fixedly installed on the feeding X-axis slide block 453, and the feeding Y-axis control device 46 and the feeding X-axis control device 45 are perpendicular to each other in the horizontal direction. The feeding Y-axis control device 46 includes a feeding Y-axis servo motor 461, a feeding Y-axis screw 462, and a feeding Y-axis slider 463. The feeding Y-axis servo motor 461 drives the feeding Y-axis leading screw 462 to rotate. The material Y-axis slider 463 moves axially along the material Y-axis lead screw 462; the material loading Z-axis control device 47 is connected with the material Y-axis slider 463, and the material loading Z-axis control device 47 is connected with the material Y-axis control The devices 46 are vertically perpendicular to each other. The feeding Z-axis control device 47 includes a feeding Z-axis servo motor 471, a feeding Z-axis screw 472, and a feeding Z-axis slider 473. The feeding Z-axis servo motor 471 drives the feeding Z-axis leading screw 472 to rotate. The material Z-axis slider 473 moves axially along the material Z-axis lead screw 472; the adsorption device 48 includes a suction cup bracket 481 and an air suction cup 482 installed at the bottom of the suction cup bracket 481, and the suction cup bracket 481 and the material Z-axis slider 473 Connected, the feeding X-axis control device 45, the feeding Y-axis control device 46 and the feeding Z-axis control device 47 cooperate with the transmission control adsorption device 48 to move in the x, y, and z directions.

Referring to Fig. 9, described positioning device 6 comprises positioning slider 61, positioning lead screw bevel gear 62, positioning servo motor 63, positioning servo motor bevel gear 64, positioning lead screw 65, at the left and right sides of positioning servo motor 63 Two positioning lead screws 65 are arranged on the side, and the positioning lead screw bevel gear 62 is meshed with the positioning servo motor bevel gear 64, and each positioning lead screw 65 is provided with a positioning slider 61; There are positioning proximity switch 611, positioning spring 612, rubber block 613, rubber block 613 is connected with positioning slider 61 by positioning spring 612, and positioning proximity switch 611 is fixedly installed on the positioning slider 61.

Referring to Fig. 3, the bending device 7 includes a C-shaped tool rest 71, a Z-axis hydraulic cylinder 72, an auxiliary rotating shaft 73, a main rotating shaft 74, an X-axis hydraulic cylinder rotating shaft 75, and an X-axis hydraulic cylinder 76. The C-shaped knife rest 71 includes an upper knife 711 and a lower knife 712. The upper knife 711 and the lower knife 712 are connected to the right end face of the C-shaped knife rest 71 through nuts. The two ends of the Z-axis hydraulic cylinder 72 are respectively connected with the C-shaped tool rest 71 and the base 8. One end of the X-axis hydraulic cylinder 76 is connected with the main rotating shaft 74 through the X-axis hydraulic cylinder rotating shaft 75, and the other end is connected with the main rotating shaft 74. The base 8 is connected.

10, the feeding device 9 includes a feeding X-axis control device 91, a feeding Z-axis control device 92 and a rotating mechanism 93, and the feeding X-axis control device 91 includes a feeding X-axis screw 911, a feeding X-axis slider 912, The feeding X-axis servo motor 913, the feeding X-axis servo motor 913 drives the feeding X-axis screw 911 to rotate, the feeding X-axis slider 912 moves axially along the feeding X-axis screw 911; the feeding Z-axis control device 92 is fixedly installed on the feeding X On the shaft slider 912, the feeding Z-axis control device 92 is perpendicular to the feeding X-axis control device 91 in the vertical direction. The feeding Z-axis control device 92 includes a feeding Z-axis servo motor 921, a feeding Z-axis slider 922, and a feeding Z-axis control device. Axis screw 923, feeding Z-axis servo motor 921 drives feeding Z-axis screw 923 to rotate, feeding Z-axis slider 922 moves axially along feeding Z-axis screw 923; described rotating mechanism 93 includes electromagnet 931, electromagnet connected Rod 932 and electromagnet servo motor 933, one end of electromagnet connecting rod 932 is fixedly connected with electromagnet 931, and the other end is connected with electromagnet servo motor 933, and electromagnet servo motor 933 is fixedly installed on the feeding Z-axis slide block 922.

An intelligent numerical control bending machine in this embodiment can realize the functions of automatic grasping, automatic positioning and loading of sheet metal parts, automatic bending, automatic rotation and multilateral bending, and can be operated automatically without manual intervention. The operation is simple, the labor force is fully liberated, and the occurrence of safety accidents is effectively avoided. There is no need to manually adjust the position of the workpiece repeatedly, the positioning is accurate, and it is in place at one time, which not only reduces the cost, but also reduces the time for positioning the workpiece, and its stopper device 2, unloading device 3, positioning device 6, and feeding device 4 The action of the feeding device 9 is realized by using the servo motor to drive the screw to move, which is convenient for unified control, and has a simple structure, low failure rate, and high sheet bending efficiency.

Referring to Fig. 12, the numerical control system includes a computer, a measuring unit, a slave controller, an optocoupler isolation module, a relay, a power amplifier module, a hydraulic control valve and an actuator, and the measuring unit is composed of a liquid level sensor, a pressure sensor, a temperature sensor , Hall sensor, grating ruler and differential pressure switch, the slave controller is composed of counting module, A/D conversion module, digital processing module, servo controller and communication module, and the actuator is composed of stopper servo motor 21 , feeding servo motor 33, feeding X-axis servo motor 451, feeding Y-axis servo motor 461, feeding Z-axis servo motor 471, positioning servo motor 63, feeding X-axis servo motor 913, feeding Z-axis servo motor 921, An electromagnet servo motor 933, an electromagnet 931, a Z-axis hydraulic cylinder 72, an upper die hydraulic cylinder 13 and an X-axis hydraulic cylinder 76 are composed, and the signal interface of the computer is connected to the signal interface of the communication module and the servo controller. The signal interface of the communication module is connected to the signal interface of the digital processing module, and the output terminals of the liquid level sensor, pressure sensor, temperature sensor and Hall sensor are converted into digital quantities by the A/D conversion module and then input to the digital processing module The grating scale is connected to the input end of the digital processing module through the counting module, the differential pressure switch is connected to the input end of the digital processing module through the optocoupler isolation module, and the output end of the digital processing module is connected to the electromagnetic The input end of the iron is connected, the output end of the digital processing module is connected with the input end of the hydraulic control valve through the power amplification module, and the output end of the hydraulic control valve is connected with the Z-axis hydraulic cylinder 72, the upper mold hydraulic cylinder 13 and the X-axis The input end of the hydraulic cylinder 76 is connected, and the control interface of the servo controller is connected to the actuator by a blocking servo motor 21, a feeding servo motor 33, a feeding X-axis servo motor 451, a feeding Y-axis servo motor 461, and a feeding servo motor 461. The control interfaces of Z-axis servo motor 471 , positioning servo motor 63 , feeding X-axis servo motor 913 , feeding Z-axis servo motor 921 and electromagnet servo motor 933 are connected to each other.

The hydraulic circuit in this embodiment includes a liquid level sensor 1a, a temperature sensor 1b, a filter 1c, a hydraulic pump 1d, a pressure sensor 1e, a shut-off valve 1f, a pressure gauge 1g, a locking circuit 1h, a differential pressure switch 1i, a balancing circuit 1j, The hydraulic control valves 1k, 1l, 1m, 1n, 1o, and the connection methods of various components of the hydraulic circuit are shown in Figure 11. The present invention adopts the method of hydraulic circuit combined with numerical control system, which can automatically compensate the angle of workpieces with different material thicknesses. Users can intuitively edit and input the material information and angle information to be bent. Secondly, the bending process of workpieces is completely controlled by The CNC system automatically completes, which improves the machining accuracy and work efficiency.

The working process of this embodiment is:

1) After starting up, the computer first detects the liquid level sensor, pressure sensor, temperature sensor, Hall sensor, grating ruler, differential pressure switch and servo controller. If it detects that the position signal is normal and the data communication is smooth, it enters the standby state, otherwise Alarm; then the system lubricates the slider, screw, gear, and rotating shaft;

2) According to the shape of the workpiece, adjust the position and gap of the upper press knife 12, and store the blank of the workpiece on the storage platform 44;

3) Call out from the computer or draw the drawing of the sheet to be processed on site. After clicking to start, the workpiece is placed in the middle of the clamping manipulator 321 of the unloading trolley 32 by the air negative pressure adsorption device 4, and the unloading servo motor 33 drives the blanking trolley 32 to transport the workpiece to a suitable position on the workbench 5, and then the blanking servo motor 33 drives the blanking trolley 32 to return to the initial position (the motor stops running after returning to the initial position), and the feeding device 4 returns to its position. At this time, the X-axis direction of the workpiece has been precisely positioned;

4) While the blanking servo motor 33 drives the blanking trolley 32 to transport the processed parts, the material retaining servo motor 21 drives the material retaining plate 23 to rotate 90° until the material retaining block 232 is higher than the plane of the workbench 5; the lower material trolley 32 transports the processed parts After being placed in a certain area of the workbench 5, the positioning servo motor 63 drives the positioning slider 61 to push the workpiece to move toward the stopper block 232 until the positioning spring 612 is deformed and the signal of the positioning proximity switch 611 changes, and the positioning servo motor 63 stops running. , the workpiece can be clamped in this direction to complete the precise positioning of the Y-axis direction of the workpiece, and the workpiece has been accurately positioned at this time;

5) After the workpiece is clamped by the positioning slider 61 and the stopper block 232, the feed X-axis servo motor 913, the feed Z-axis servo motor 921, and the electromagnet servo motor 933 are started to drive the electromagnet 931 to locate at the center of the workpiece and align The workpiece is electromagnetically adsorbed. When the workpiece is completely positioned and electromagnetically adsorbed, start the feeding Z-axis servo motor 921 to lift the workpiece to a certain height. When the workpiece is lifted to a certain height, simultaneously start the positioning servo motor 63, block Material servo motor 21 (making it reverse) makes positioning slide block 61 and material blocking plate 23 get back to initial position (motor stops running after getting back to initial position);

6) Start the feeding X-axis servo motor 913, the feeding Z-axis servo motor 921, and the electromagnet servo motor 933, and send the workpiece to the bending machine between the upper press knife 12 and the lower press knife 51 according to the computer electronic drawing parameters, and finally the upper die The hydraulic cylinder 13 drives the frame 1 to move downward until the lower pressure reaches the set value, the upper mold hydraulic cylinder 13 locks and holds pressure to stop the movement, and the Z-axis hydraulic cylinder 72 and X-axis hydraulic cylinder 76 drive the C-shaped tool holder 71 to process parts are bent;

7) After the C-shaped tool rest 71 bends the workpiece, the upper mold hydraulic cylinder 13 drives the frame 1 to return to the initial position and then stops. At this time, a bending action is completed, and the rotation of the electromagnet 931 can be controlled. Multilateral bending of the workpiece, the bending system can complete the multilateral forward and reverse bending of the workpiece by continuously performing the above actions according to the processing requirements of the computer electronic drawings. After the workpiece processing is completed, the electromagnet 931 loses power and separates from the workpiece, and the blanking servo motor 33 is started to drive the blanking trolley 32 to push the workpiece away from the workbench 5 . After the workpiece leaves the workbench 5, start the blanking servo motor 33, the feeding X-axis servo motor 913, the feeding Z-axis servo motor 921, and the electromagnet servo motor 933 (reversing) so that it drives the blanking trolley 32 and the electromagnet 931 times To the initial position (the motor stops running after returning to the initial position), at this time the entire workpiece is processed.

The above schematically describes the present invention and its implementation, which is not restrictive, and what is shown in the drawings is only one of the implementations of the present invention, and the actual structure is not limited thereto. Therefore, if a person of ordinary skill in the art is inspired by it, without departing from the inventive concept of the present invention, without creatively designing a structural mode and embodiment similar to the technical solution, it shall all belong to the protection scope of the present invention .

Claims (10)

1. An intelligent numerical control bending machine, comprising frame (1), workbench (5), bending device (7) and base (8), described frame (1), bending device (7) It is arranged on the base (8), and is characterized in that it also includes a blocking device (2), a feeding device (3), a feeding device (4), a positioning device (6), a feeding device (9) and a numerical control system; The workpiece is transported to the workbench (5) by the feeding device (4), and is clamped and moved on the workbench (5) by the unloading device (3) to complete the positioning of the workpiece in the X-axis direction; the stopper device (2 ) cooperates with the positioning device (6) to complete the positioning of the workpiece in the Y-axis direction; the feeding device (9) transports the workpiece to the processing station for bending processing, and controls the rotation of the workpiece to perform multilateral bending. After the processing is completed, the unloading device (3) pushing the workpiece away from the workbench (5); the numerical control system completes the automatic control of the entire bending process. 2. An intelligent numerical control bending machine according to claim 1, characterized in that: the blocking device (2), the unloading device (3) and the positioning device (6) are arranged on the workbench (5) On, the blocking device (2) and the unloading device (3) are arranged parallel to each other, and the positioning device (6) is perpendicular to the blocking device (2) and the unloading device (3); the feeding device (4) It is arranged on one side of the workbench (5), and the feeding device (9) is arranged below the workbench (5). 3. An intelligent numerically controlled bending machine according to claim 1 or 2, characterized in that: the stopper device (2) includes a stopper servo motor (21), a stopper plate connecting shaft (22) and The material retaining plate (23), the material retaining servo motor (21) links to each other with an end of the material retaining plate connecting shaft (22), and the material retaining plate (23) is arranged on the material retaining plate connecting shaft (22) at equal intervals. 4. An intelligent numerical control bending machine according to claim 3, characterized in that: the blanking device (3) includes a blanking screw (31), a blanking trolley (32), a blanking servo motor (33), the blanking servo motor (33) drives the blanking screw (31) to rotate, and the blanking trolley (32) moves axially along the blanking screw (31); the blanking trolley (32) is provided with Clamping manipulator (321) and clamping manipulator proximity switch (322). 5. An intelligent numerical control bending machine according to claim 4, characterized in that: said feeding device (4) comprises a feeding bracket (41), a feeding X-axis control device (45), a feeding The Y-axis control device (46), the feeding Z-axis control device (47) and the adsorption device (48), the feeding X-axis control device (45) is fixedly installed on the top of the feeding bracket (41), and the feeding Y-axis control device (46) is perpendicular to each other in the horizontal direction with the feeding X-axis control device (45); the feeding Z-axis control device (47) is perpendicular to each other in the vertical direction with the feeding Y-axis control device (46); Device (48) comprises sucker support (481) and the air sucker (482) that is installed in the bottom of sucker support (481), and adsorption device (48) links to each other with loading Z-axis control device (47), and feeds X-axis control device ( 45), the feeding Y-axis control device (46) and the feeding Z-axis control device (47) cooperate with the transmission to control the adsorption device (48) to move in the x, y, and z directions. 6. An intelligent numerical control bending machine according to claim 5, characterized in that: said feeding X-axis control device (45) includes a feeding X-axis servo motor (451), a feeding X-axis screw (452), the feeding X-axis slide block (453), the feeding X-axis servo motor (451) drives the feeding X-axis lead screw (452) to rotate, and the feeding X-axis slide block (453) moves along the feeding X-axis wire The bar (452) moves axially; the loading Y-axis control device (46) is fixedly mounted on the loading X-axis slider (453), and the loading Y-axis control device (46) includes a feeding Y-axis servo motor (461), feeding Y-axis lead screw (462), feeding Y-axis slider (463), feeding Y-axis servo motor (461) drives feeding Y-axis leading screw (462) to rotate, and feeding Y-axis slides The block (463) moves axially along the feeding Y-axis screw (462); the feeding Z-axis control device (47) is connected to the feeding Y-axis slide block (463), and the feeding Z-axis control device (47 ) includes a feeding Z-axis servo motor (471), a feeding Z-axis screw (472), a feeding Z-axis slide block (473), and a feeding Z-axis servo motor (471) drives a feeding Z-axis screw (472 ) rotates, the feeding Z-axis slider (473) moves axially along the feeding Z-axis lead screw (472); the suction cup bracket (481) links to each other with the feeding Z-axis slider (473). 7. An intelligent numerical control bending machine according to claim 5, characterized in that: the positioning device (6) includes a positioning slider (61), a positioning screw bevel gear (62), a positioning servo motor (63), positioning servo motor bevel gear (64), positioning leading screw (65), two positioning leading screws (65) are set on the left and right sides of positioning servo motor (63), positioning leading screw bevel gear (62) ) is meshed with the bevel gear (64) of the positioning servo motor, and each positioning screw (65) is provided with a positioning slider (61); the positioning slider (61) is provided with a positioning proximity switch (611) , positioning spring (612), rubber block (613), rubber block (613) is connected with positioning slide block (61) by positioning spring (612), and positioning proximity switch (611) is fixedly installed on the positioning slide block (61). 8. An intelligent numerical control bending machine according to claim 7, characterized in that: the feeding device (9) includes a feeding X-axis control device (91), a feeding Z-axis control device (92) and a rotating mechanism (93), the feeding X-axis control device (91) comprises a feeding X-axis screw (911), a feeding X-axis slide block (912), a feeding X-axis servo motor (913), and a feeding X-axis servo motor (913) drives the feeding The X-axis screw (911) rotates, and the feeding X-axis slider (912) moves axially along the feeding X-axis screw (911); the feeding Z-axis control device (92) is fixedly installed on the feeding X-axis slider (912) , the feeding Z-axis control device (92) is perpendicular to the feeding X-axis control device (91) in the vertical direction, and the feeding Z-axis control device (92) includes a feeding Z-axis servo motor (921), a feeding Z-axis slide block ( 922), the feeding Z-axis screw (923), the feeding Z-axis servo motor (921) drives the feeding Z-axis screw (923) to rotate, and the feeding Z-axis slider (922) moves along the axial direction of the feeding Z-axis screw (923) Move; the rotating mechanism (93) includes an electromagnet (931), an electromagnet connecting rod (932) and an electromagnet servo motor (933), and one end of the electromagnet connecting rod (932) is fixedly connected with the electromagnet (931). One end is connected with the electromagnet servo motor (933), and the electromagnet servo motor (933) is fixedly installed on the feeding Z-axis slide block (922). 9. An intelligent numerical control bending machine according to claim 8, characterized in that: the frame (1) includes a frame rotating shaft (11), an upper pressing knife (12), an upper die hydraulic cylinder ( 13), the frame (1) is connected with the base (8) through the frame rotating shaft (11), the upper pressing knife (12) is installed on the lower part of the workpiece processing end of the frame (1) through a nut, and the upper die hydraulic cylinder ( 13) The two ends are respectively connected with the frame (1) and the base (8). 10. An intelligent numerical control bending machine according to claim 9, characterized in that: the bending device (7) includes a C-shaped tool rest (71), a Z-axis hydraulic cylinder (72), an auxiliary rotating shaft (73), main rotary shaft (74), X-axis hydraulic cylinder rotary shaft (75), X-axis hydraulic cylinder (76), C-type knife rest (71) passes secondary rotary shaft (73) and main rotary shaft (74) The two ends of the Z-axis hydraulic cylinder (72) are respectively connected with the C-shaped tool holder (71) and the base (8), and one end of the X-axis hydraulic cylinder (76) is connected to the main shaft through the X-axis hydraulic cylinder rotation shaft (75). The rotating shaft (74) is connected, and the other end is connected with the base (8).