CN203817823U - Universal clamp suitable for clamping plastic mold on multiple pieces of machining equipment - Google Patents

Abstract

The utility model provides a universal clamp suitable for clamping plastic molds on various processing equipment, which comprises a base and a clamping device. The base includes a base, a grooved electromagnetic chuck, a pneumatic device, etc. The pneumatic device is used to achieve rapid positioning with the clamping device, and the grooved electromagnetic chuck is used to support and fix the workpiece to be processed. The clamping device includes a push plate, a screw, a support, a bar, etc., the support can slide between the bar and the bar, and the push plate can be translated by the screw so as to lock the Machining the end face of the workpiece. The utility model is mainly applicable to the continuous processing and measurement process of mold parts such as CNC machining centers, electric discharge machine tools, wire cutting machine tools, and three-coordinate measuring instruments. The industrial manipulator or robot can be used to realize the mold in the mold manufacturing automatic production line. Automated continuous production of manufacturing.

Description

A universal fixture suitable for clamping plastic molds on various processing equipment

technical field

The utility model relates to the field of machining fixtures, in particular to a universal fixture suitable for clamping plastic molds on various processing equipment.

Background technique

The core and cavity of plastic molds generally need to be processed or inspected by CNC machining centers, electric discharge machine tools, wire cutting machine tools, three-coordinate measuring instruments and other equipment during the processing process. For different types of equipment, different mold fixtures are required In order to realize the processing link between the various processing equipment. At present, most domestic mold companies still use traditional fixtures such as yardsticks. Every time the processing equipment is replaced, it needs to be leveled and centered. This not only has poor precision but also takes time, making it difficult to realize automation and informatization in mold processing. Therefore, a universal fixture suitable for installation and positioning on a variety of processing equipment needs to appear urgently.

Several common mold clamping methods are: (1) Clamping the mold core and cavity by means of yardage, beading, etc.; (2) Clamping by the rapid positioning device of the reference piece; (3) Clamping by the pneumatic positioning device . Among them, the first one is the most common and cheap, but it is cumbersome and time-consuming to set up the clamping, and the precision is not high. The second method is slightly better than the first one, and the accuracy and time are in the middle of the three, but it cannot be used on machine tools such as wire cutting. The fixture of the third clamping method is expensive and has high precision, but it cannot be used on machine tools such as wire cutting.

Utility model content

In view of the above technical problems, the purpose of this utility model is to propose a universal fixture suitable for clamping plastic molds on various processing equipment in the automatic production line of mold manufacturing.

The utility model is achieved through the following technical solutions:

A universal fixture suitable for clamping plastic molds on various processing equipment, including a base and a clamping device detachably arranged on the base,

The base includes a base with a fixing hole, the middle part of the base is provided with a grooved electromagnetic chuck, and the grooved electromagnetic chuck is provided with mutually parallel rectangular slots, and the length of the rectangular slots is perpendicular to the base on the base. The two opposite sides of the direction are provided with base grooves for installing the clamping device, and the four corners of the base are vertically provided with four columnar pneumatic devices connected with the air pressure system;

The clamping device includes a screw rod, a push plate, a first bar and a second bar parallel to each other, and the two ends of the first bar and the second bar are respectively connected to the first fixing plate and the second bar. The second fixing plate forms a rectangular frame structure, the push plate is arranged between the first strip and the second strip, and is vertically connected with the screw rod, and the middle part of the first strip is provided with the screw rod Matching threaded holes, a support member located below the push plate is also movably arranged between the first strip and the second strip, and the first strip and the second strip face the base One side is also provided with a pneumatic device fitting hole matched with the columnar pneumatic device.

Further, the two sides of the base are provided with nozzle holes connecting the pneumatic system and the columnar pneumatic device.

Further, a symmetrical guide rod is arranged vertically on the push plate, and a through hole for clearance fit with the guide rod is penetratingly provided on the first bar.

Further, a notch for accommodating the push plate is provided on the inner side of the first bar.

Further, the opposite surfaces of the first bar and the second bar are respectively provided with a first groove and a second groove for installing the support.

Further, a notch is provided on the side of the middle part of the second strip away from the push plate, and a detachable installation block is arranged in the notch.

Further, the side of the middle part of the first strip away from the push plate is fixedly provided with a reinforcement seat, and the reinforcement seat is respectively provided with a through hole for clearance fit with the guide rod and a threaded hole for fit with the screw rod.

Further, the surface of the push plate is provided with serrated protrusions.

Further, the first fixing plate and the second fixing plate are respectively provided with a second ear protection and a first ear protection.

Further, the sides of the first bar and the second bar facing the base are also provided with pin fitting holes.

The beneficial effect of the utility model is that the quick fixation and separation of the clamping device and the base, and the clamping structure applicable to various sizes of processed workpieces can be used to realize automatic processing. In addition, the utility model has the advantages of simple structure, strong versatility and high stability, and can be applied to CNC machining centers, electric discharge machine tools, wire cutting machine tools, three-coordinate measuring instruments and industrial manipulators, so that it can be used in mold manufacturing automatic production lines for high Precision and efficient mold manufacturing. the

Description of drawings

FIG. 1 is a three-dimensional schematic diagram of a base of the present invention.

Fig. 2 is a front perspective schematic view of the clamping device of the present invention.

Fig. 3 is a perspective view of the reverse side of the clamping device of the present invention.

Fig. 4 is a three-dimensional schematic diagram of the overall assembly of the utility model.

The labels in the figure are: 1-base, 2-base groove, 3-pneumatic device, 4-groove electromagnetic chuck, 5-fixing hole, 6-screw, 7-guide rod, 8-first bar 9-Push plate, 10-First fixed plate, 11-Second bar, 12-Installation block, 13-Second fixed plate, 14-Support, 15-First ear protector, 16-Groove, 17-pneumatic device matching hole, 18-groove, 19-pin matching hole, 20-second ear protector, 21-air nozzle hole.

Detailed ways

Below in conjunction with accompanying drawing and specific embodiment, the utility model is described in further detail:

As shown in Figures 1 to 4, a universal fixture suitable for clamping plastic molds on a variety of processing equipment, including a base, a clamping device detachably arranged on the base,

The base includes a base 1 provided with a fixing hole 5, the middle part of the base 1 is provided with a grooved electromagnetic chuck 4, and the grooved electromagnetic chuck 4 is provided with rectangular grooves parallel to each other. The two opposite sides perpendicular to the length direction of the rectangular groove are provided with base grooves 2 for installing the clamping device, and the four corners of the base 1 are vertically provided with four columnar pneumatic devices 3 communicated with the air pressure system;

The clamping device comprises a screw rod 6, a push plate 9, a first strip 8 and a second strip 11 which are parallel to each other, and the two ends of the first strip 8 and the second strip 11 respectively pass through Connect the first fixed plate 10 and the second fixed plate 13 to form a rectangular frame structure, the push plate 9 is arranged between the first bar 8 and the second bar 11, and is vertically connected with the screw rod 6, the The surface of the push plate 9 is provided with serrated protrusions to increase the frictional force with the workpiece. The middle part of the first strip 8 is provided with a threaded hole matching the screw 6, and a support located under the push plate 7 is also movably provided between the first strip 8 and the second strip 11. 14 , the side of the first bar 8 and the second bar 11 facing the base 1 is also provided with a pneumatic device matching hole 17 for matching with the columnar pneumatic device 3 .

Both sides of the base 1 are provided with nozzle holes 21 connecting the pneumatic system and the columnar pneumatic device 3 .

Two symmetrical guide rods 7 are vertically arranged on the push plate 9 , and a through hole for clearance fit with the guide rods 7 is penetratingly provided on the first bar 8 .

A notch for accommodating the push plate 9 is provided inside the first bar 8 .

The opposite surfaces of the first bar 8 and the second bar 11 are respectively provided with a first groove 16 and a second groove 18 for installing the support 14 .

A notch is provided on the side of the middle part of the second bar 11 away from the push plate 9 , and a detachable mounting block 12 is provided in the notch.

The side of the middle part of the first bar 8 facing away from the push plate is fixedly provided with a reinforcement seat, and the reinforcement seat is respectively provided with a through hole for clearance fit with the guide rod 7 and a threaded hole for cooperation with the screw rod 6 .

The first fixing plate 10 and the second fixing plate 13 are respectively provided with a second protecting ear 20 and a first protecting ear 15 .

To facilitate quick installation and positioning, the sides of the first bar 8 and the second bar 11 facing the base 1 are also provided with pin fitting holes 19 .

The base 1 and the equipment workbench are fastened and matched with screws through the fixing holes 5 , and the base 1 is equipped with a grooved electromagnetic chuck 4 and four pneumatic devices 3 . When working, the slot-type electromagnetic chuck 4 is in contact with the workpiece to be processed, and plays the role of fixing the workpiece through magnetism. The air nozzle hole 21 is externally connected to the air compressor equipment, so that the pneumatic device 3 can perform air extraction and deflation, and the pneumatic device 3 contacts with the matching hole 17 of the pneumatic device, and plays the role of fixing the clamping device by vacuuming. The first strip 8 and the second strip 11 are embedded in the groove 2 of the base. The support member 14 is also just embedded in the grooved electromagnetic chuck 4 , and its upper surface is flush with the upper surface of the grooved electromagnetic chuck 4 , which facilitates close contact between the processed workpiece and the grooved electromagnetic chuck 4 .

The base plays the role of supporting the workpiece, quickly fixing and separating the clamping device. When working, the workbench of the processing equipment can be fastened and matched with the base through the fixing hole 5 with screws. Through the air nozzle hole 21, the air compressor equipment is externally connected, and the pneumatic device 3 can perform air extraction and deflation. The base is quickly positioned and fixed by the pneumatic device 3 and the clamping device, and the grooved electromagnetic chuck 4 is used to fix the processed workpiece on the clamping device and prevent it from moving.

The clamping device is mainly responsible for fastening the processed workpiece and providing space for wire cutting, wherein the push plate 9 is connected by two guide rods 7, and is pushed to translate by a screw rod 6. The guide rod 7 and the screw rod 6 are both sleeved on the bar On the shape part 8, there is a second groove 18 on the second strip part 11, opposite to the first groove 16 of the first strip part 8, and the two support parts 14 are connected with the first groove 16 and the second groove 18 Clearance fit, free to slide, the mounting block 12 and the second strip 11 are fastened with screws, and the first strip 8 and the second strip 11 are fastened with screws through the fixed plate 10 and the fixed plate 13 .

During work, select the supporting member 14 of suitable size and quantity according to the size of the workpiece to be processed, unclamp the mounting block 12, install the mounting block 12 after installing the supporting member 14 from the second groove 18, and fasten with screws. The sliding support member 14 can not only support the workpiece to be processed, but also avoid space during wire cutting. By turning the screw rod 6, the push plate 9 is pushed to compress the workpiece, and the preparatory work is finished. Select different processing equipment according to the processing needs, the clamping device can be quickly positioned by the pneumatic device 3, and installed on the base for processing.

The preparation work of the processed workpiece before processing is to select the appropriate number of supports 14 according to the size of the processed workpiece and the specific position to be processed by wire cutting, and to feed the supports 14 from the groove 18 and place them in the groove. Between 16 and groove 18, be adjusted to suitable distance, make it suitable for wire cutting processing, and can just in time be put into the groove of grooved electromagnetic chuck 4, load onto mounting block 12 after adjusting. The workpiece to be processed is placed between the bar 8 and the bar 11 , so that one side of the workpiece to be processed is in contact with the side of the bar 11 and flush, and the lower surface of the workpiece to be processed is in contact with the support 14 . Rotate the screw rod 6, push the push plate 9, butt against the other side of the workpiece to be processed, and lock the screw rod 6 to complete the preparatory work.

When using this utility model to process mold parts, there are two situations:

The first case: In equipment such as CNC machining centers, EDM machines, and three-coordinate measuring instruments, the base and the clamping device are used together. The workpiece to be processed is installed in the clamping device, and the second lug 20 and the first lug 15 are clamped by the industrial manipulator and transferred between various equipments, and the base on the workbench of the required equipment is quickly positioned and fixed by the pneumatic device 3, thereby For subsequent processing or testing.

The second situation: In equipment such as wire cutting machine tools, the clamping device equipped with the workpiece to be processed is clamped by the industrial manipulator and transferred to the worktable of the wire cutting processing equipment, and the pins on the workbench and the pins on the clamping device After the fast positioning of the pin matching hole 19, the wire cutting process is directly carried out.

The utility model has been exemplarily described above in conjunction with the accompanying drawings. Obviously, the specific implementation of the utility model is not limited by the above-mentioned method, as long as the method design and technical solutions of the utility model are used to carry out various transformations, or directly Those applied to other occasions are all within the protection scope of the present utility model.

Claims (10)

1. a universal fixturing that is useful in clamping plastic mould in various processing equipment, is characterized in that: comprises base, is arranged on the clamping device on base removably,

Described base comprises the pedestal (1) that offers fixing hole (5), described pedestal (1) middle part is provided with grooved magnechuck (4), on described grooved magnechuck (4), be provided with the rectangular channel being parallel to each other, two opposite side of the upper vertical described rectangular channel length direction of described pedestal (1) are provided with the base recess (2) for clamping device is installed, and (1) four jiao of described pedestal is vertically installed with four column pneumatic means (3) that are connected with baric systerm;

Described clamping device comprises screw rod (6), push pedal (9), the first strip piece (8) being parallel to each other and the second strip piece (11), the two ends of described the first strip piece (8) and the second strip piece (11) form rectangle closed-in construction by being connected the first fixed head (10) and the second fixed head (13) respectively, described push pedal (9) is arranged between the first strip piece (8) and the second strip piece (11), and with vertical connection of screw rod (6), described the first strip piece (8) middle part is penetratingly provided with the screwed hole matching with screw rod (6), between described the first strip piece (8) and the second strip piece (11), be also movably set with the support member (14) that is positioned at push pedal (7) below, described the first strip piece (8) and the second strip piece (11) are also provided with towards the one side of pedestal (1) the pneumatic means mating holes (17) matching with column pneumatic means (3).

2. the universal fixturing that is useful in clamping plastic mould in various processing equipment according to claim 1, is characterized in that: the both sides of described pedestal (1) are provided with the air nozzle hole (21) that connects pneumatic system and column pneumatic means (3).

3. the universal fixturing that is useful in clamping plastic mould in various processing equipment according to claim 2, it is characterized in that: in described push pedal (9), be also vertically installed with 2 symmetrical guide rods (7), on described the first strip piece (8), be penetratingly provided with the through hole with guide rod (7) matched in clearance.

4. the universal fixturing that is useful in clamping plastic mould in various processing equipment according to claim 1, is characterized in that: described the first strip piece (8) inner side is provided with for holding the breach of push pedal (9).

5. the universal fixturing that is useful in clamping plastic mould in various processing equipment according to claim 1, is characterized in that: described the first strip piece (8) and the second strip piece (11) opposite face are respectively arranged with for the first groove (16) and second groove (18) of support member (14) are installed.

6. the universal fixturing that is useful in clamping plastic mould in various processing equipment according to claim 5, it is characterized in that: the side that described the second strip piece (11) middle part deviates from push pedal (9) is provided with notch part, is provided with dismountable mounting blocks (12) in described notch part.

7. the universal fixturing that is useful in clamping plastic mould in various processing equipment according to claim 3, it is characterized in that: the side that described the first strip piece (8) middle part deviates from push pedal is fixedly installed reinforced seat, is respectively arranged with and the through hole of guide rod (7) matched in clearance and the screwed hole coordinating with screw rod (6) on described reinforced seat.

8. according to the universal fixturing that is useful in clamping plastic mould in various processing equipment described in claim 1 to 7 any one, it is characterized in that: the surface of described push pedal (9) is provided with serration.

9. the universal fixturing that is useful in clamping plastic mould in various processing equipment according to claim 8, is characterized in that: on described the first fixed head (10) and the second fixed head (13), be respectively arranged with the second earflap (20) and the first earflap (15).

10. the universal fixturing that is useful in clamping plastic mould in various processing equipment according to claim 9, is characterized in that: described the first strip piece (8) and the second strip piece (11) are also provided with pin mating holes (19) towards the one side of pedestal (1).