CN216502834U

CN216502834U - Tool clamp for electric discharge machine

Info

Publication number: CN216502834U
Application number: CN202122877551.4U
Authority: CN
Inventors: 余晓霞
Original assignee: Shanghai Dehe Precision Mould Co ltd
Current assignee: Shanghai Dehe Precision Mould Co ltd
Priority date: 2021-11-19
Filing date: 2021-11-19
Publication date: 2022-05-13
Anticipated expiration: 2031-11-19

Abstract

The utility model belongs to the technical field of spark machine equipment, and particularly relates to a tool clamp for an electric spark machine, which comprises a workbench, a support rod and a sliding plate, wherein the top of the sliding plate is fixedly connected with an air cylinder, the output end of the air cylinder is fixedly connected with a connecting block, the top of the connecting block is symmetrically and rotatably connected with a transmission connecting rod, the other end of the transmission connecting rod is rotatably connected with a sliding sleeve, the top of the workbench is symmetrically provided with sliding grooves, the sliding grooves are slidably connected with movable rods, the sliding sleeves are slidably connected with the movable rods, the left ends of the sliding sleeves are fixedly connected with clamping mechanisms, the workbench is internally provided with a transmission groove, the left end and the right end of the transmission groove are respectively and fixedly connected with bearings, a threaded transmission rod is rotatably connected between the bearings, the threaded transmission rod is in threaded connection with a sliding block, the sliding block is fixedly connected to the bottom of the sliding plate, the automatic clamping device is convenient to operate, can realize automatic clamping of the workpiece, and is convenient to adjust the machining position of the workpiece.

Description

Tool clamp for electric discharge machine

Technical Field

The utility model belongs to the field of spark machine equipment, and particularly relates to a tool clamp for an electric spark machine.

Background

The spark machine is a metal piece processing device, is mainly used for electric spark processing, is also called as an electric spark machine tool, and is widely applied to processing and manufacturing various metal molds and mechanical equipment; the special processing method for removing metal material by using electroerosion action produced when pulse discharge is produced between two electrodes immersed in working liquid is characterized by that in the course of working, the electrode and workpiece are respectively connected with two electrodes of pulse power supply, and immersed in the working liquid or the working liquid is charged into discharge gap, and the automatic control system of gap is used to control the electrode of tool to feed into the workpiece, when the gap between two electrodes is reached to a certain distance, the pulse voltage applied on two electrodes can be used for puncturing working liquid to produce spark discharge.

The existing tool for the spark machine generally adopts a screw to directly clamp a workpiece, the clamping is not tight enough, the workpiece is easy to loosen during processing, the processing precision is influenced, and the existing tool for the spark machine is complex to use, needs a large amount of time to clamp during clamping and is inconvenient to use.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

Aiming at the defects of the prior art, the utility model provides a tool clamp for an electric discharge machine, which is convenient to operate, can realize automatic clamping of a workpiece, is convenient to adjust the machining position of the workpiece, and solves the problems that the existing device is not tight enough in clamping, is easy to loosen during machining, influences the machining precision, is complex to use, needs a large amount of time for clamping and is inconvenient to use.

(II) technical scheme

In order to achieve the purpose, the utility model provides the following technical scheme: a tool clamp for an electric discharge machine comprises a workbench, a support rod and a sliding plate, wherein the top of the sliding plate is fixedly connected with an air cylinder, the output end of the air cylinder is fixedly connected with a connecting block, the top of the connecting block is symmetrically and rotatably connected with a transmission connecting rod, the other end of the transmission connecting rod is rotatably connected with a sliding sleeve, the top of the workbench is symmetrically provided with a sliding groove, the sliding groove is slidably connected with a movable rod, the left end of the sliding sleeve is fixedly connected with a clamping mechanism, a transmission groove is arranged in the workbench, the left end and the right end of the transmission groove are fixedly connected with bearings, a threaded transmission rod is rotatably connected between the bearings, the threaded transmission rod is in threaded connection with a sliding block, the sliding block is fixedly connected to the bottom of the sliding plate, the outer end of the threaded transmission rod is fixedly connected with an L-shaped connecting rod, and the L-shaped connecting rod is fixedly connected with a rotating handle.

Preferably, the bottom of the sliding plate is symmetrically provided with T-shaped sliding blocks, and the T-shaped sliding blocks are connected to the sliding grooves in a sliding mode.

Through adopting above-mentioned scheme, when rotating L type connecting rod and screw transmission pole through rotating the handle, because T type slider sliding connection is passed through on the spout in the bottom of sliding plate, when screw transmission pole is at the inside screw transmission of sliding block, drive sliding plate sliding motion on the spout to adjust clamping mechanism's position.

Preferably, the clamping mechanisms are symmetrically arranged into two groups, and the clamping mechanisms are connected to the top of the workbench in a sliding mode.

Preferably, the clamping mechanism is composed of a first fixing plate, a second fixing plate and a movable clamping plate.

Preferably, the first fixing plate is fixedly connected to the sliding sleeve, and the second fixing plate is vertically and fixedly connected to the outer end of the first fixing plate.

Preferably, the movable clamping plate is slidably connected to the first fixing plate, and a spring is arranged between the second fixing plate and the movable clamping plate.

Through adopting the above-mentioned scheme, when the cylinder is elongated, drive the connecting block and move left, thereby promote the transmission connecting rod and open, the movable rod slides left simultaneously, the sliding sleeve is towards the direction motion of keeping away from each other, it opens towards the direction motion of keeping away from each other to drive clamping mechanism, when the cylinder shrink, drive the connecting block and move right, thereby promote the transmission connecting rod and be close to each other, the movable rod slides right simultaneously, the sliding sleeve is towards the direction motion of being close to each other, it presss from both sides the work piece to be close to between the drive clamping mechanism, can play the cushioning effect through the spring at the clamping in-process.

(III) advantageous effects

Compared with the prior art, the utility model provides a tool clamp for an electric discharge machine, which has the following beneficial effects:

when carrying out the centre gripping to the work piece, through the cylinder shrink, drive the connecting block and move right, thereby promote the transmission connecting rod and be close to each other, the movable rod slides right simultaneously, the sliding sleeve moves towards the direction of being close to each other, it presss from both sides the work piece to be close to between the drive clamping mechanism, it slides on first fixed plate to move the clamp plate compression spring in the clamping process, thereby will treat the work piece centre gripping of processing between clamping mechanism, can play the cushioning effect through the spring, be convenient for carry out centre gripping location and spark-erosion machining to the work piece, simultaneously can rotate L type connecting rod and screw thread transfer line through rotating the handle, drive the sliding plate and slide motion on the spout, thereby adjust clamping mechanism's position, conveniently remove the work piece and process to spark-erosion machine head below.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic cross-sectional view of the present invention;

FIG. 3 is a schematic view of the front view of the slide plate according to the present invention;

FIG. 4 is a schematic front view of the present invention;

in the figure:

1. a work table; 2. a support bar; 3. a sliding plate; 4. an L-shaped connecting rod; 5. rotating the handle; 6. a cylinder; 7. connecting blocks; 8. a transmission connecting rod; 9. a movable rod; 10. a sliding sleeve; 11. a clamping mechanism; 12. a slider; 13. a threaded drive link; 14. a bearing; 15. a T-shaped slider; 16. a chute; 17. a first fixing plate; 18. a spring; 19. a second fixing plate; 20. a movable clamping plate; 21. a transmission groove.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example one

A tool clamp for an electric discharge machine comprises a workbench 1, a support rod 2 and a sliding plate 3, wherein the top of the sliding plate 3 is fixedly connected with an air cylinder 6, the output end of the air cylinder 6 is fixedly connected with a connecting block 7, the top of the connecting block 7 is symmetrically and rotatably connected with a transmission connecting rod 8, the other end of the transmission connecting rod 8 is rotatably connected with a sliding sleeve 10, the top of the workbench 1 is symmetrically provided with sliding grooves 16, the sliding grooves 16 are slidably connected with movable rods 9, the sliding sleeve 10 is slidably connected with the movable rods 9, the left end of the sliding sleeve 10 is fixedly connected with a clamping mechanism 11, a transmission groove 21 is arranged in the workbench 1, bearings 14 are fixedly connected at the left end and the right end of the transmission groove 21, a threaded transmission rod 13 is rotatably connected between the bearings 14, the threaded transmission rod 13 is in threaded connection with a sliding block 12, the sliding block 12 is fixedly connected to the bottom of the sliding plate 3, the outer end of the threaded transmission rod 13 is fixedly connected with an L-shaped connecting rod 4, and a rotating handle 5 is fixedly connected to the L-shaped connecting rod 4.

The bottom of the sliding plate 3 is symmetrically provided with T-shaped sliding blocks 15, the T-shaped sliding blocks 15 are connected to a sliding groove 16 in a sliding mode, when the L-shaped connecting rod 4 and the threaded transmission rod 13 are rotated through the rotating handle 5, the bottom of the sliding plate 3 is connected to the sliding groove 16 in a sliding mode through the T-shaped sliding blocks 15, and when the threaded transmission rod 13 is in threaded transmission inside the sliding block 12, the sliding plate 3 is driven to slide on the sliding groove 16, so that the position of the clamping mechanism 11 is adjusted.

The clamping mechanisms 11 are symmetrically arranged into two groups, the clamping mechanisms 11 are slidably connected to the top of the workbench 1, each clamping mechanism 11 comprises a first fixing plate 17, a second fixing plate 19 and a movable clamping plate 20, the first fixing plate 17 is fixedly connected to the sliding sleeve 10, the second fixing plate 19 is vertically and fixedly connected to the first fixing plate 17 and leans against one end of the outer side, the movable clamping plate 20 is slidably connected to the first fixing plate 17, a spring 18 is arranged between the second fixing plate 19 and the movable clamping plate 20, when the air cylinder 6 contracts, the connecting block 7 is driven to move rightwards, so that the transmission connecting rod 8 is pushed to move towards each other, meanwhile, the movable rod 9 slides rightwards, the sliding sleeve 10 moves towards the direction of mutual approaching, the clamping mechanisms 11 are driven to approach to clamp a workpiece, and the movable clamping plates 20 compress the spring 18 to slide on the first fixing plate 17 in the clamping process, therefore, a workpiece to be machined is clamped between the clamping mechanisms 11, and the spring 18 can play a role in buffering, so that the workpiece can be clamped and positioned and the electric spark machining can be facilitated.

Referring to fig. 1-4, when a workpiece is clamped, the cylinder 6 contracts to drive the connecting block 7 to move rightward, so that the transmission connecting rod 8 is pushed to approach each other, meanwhile, the movable rod 9 slides rightward, the sliding sleeve 10 moves towards the approaching direction, the clamping mechanism 11 is driven to approach each other to clamp the workpiece, the movable clamping plate 20 and the compression spring 18 slide on the first fixing plate 17 in the clamping process, so that the workpiece to be machined is clamped between the clamping mechanism 11, a buffering effect can be achieved through the spring 18, and the workpiece is conveniently clamped, positioned and machined by electric spark.

Example two

The adjustment mode of the positions of the sliding plate 3 and the clamping mechanism 11 is added on the basis of the first embodiment.

Referring to fig. 1-4, the clamping of the workpiece is realized by driving the clamping mechanism 11 to move by the cylinder 6, the positions of the clamping mechanism 11 and the workpiece can be adjusted by the movement of the sliding plate 3 on the workbench 1, the L-shaped connecting rod 4 and the threaded transmission rod 13 are rotated by rotating the handle 5, the sliding plate 3 is driven to slide on the chute 16, when the sliding plate 3 slides on the workbench 1, the cylinder 6, the connecting block 7, the transmission connecting rod 8, the movable rod 9 and the sliding sleeve 10 are driven to move integrally along with the sliding plate 3, so as to drive the clamping mechanism 11 fixedly connected to the sliding sleeve 10 and the workpiece clamped between the clamping mechanisms 11 to move, thereby conveniently adjusting the positions of the clamping mechanism 11 and the clamped workpiece, and conveniently moving the workpiece to the lower part of the electric discharge machine head for processing.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a frock clamp for electric discharge machine, includes workstation (1), bracing piece (2), sliding plate (3), its characterized in that: the top of the sliding plate (3) is fixedly connected with an air cylinder (6), the output end of the air cylinder (6) is fixedly connected with a connecting block (7), the top of the connecting block (7) is symmetrically and rotatably connected with a transmission connecting rod (8), the other end of the transmission connecting rod (8) is rotatably connected with a sliding sleeve (10), the top of the workbench (1) is symmetrically provided with sliding chutes (16), the sliding chutes (16) are slidably connected with movable rods (9), the sliding sleeve (10) is slidably connected with the movable rods (9), the left end of the sliding sleeve (10) is fixedly connected with a clamping mechanism (11), a transmission groove (21) is arranged in the workbench (1), the left end and the right end of the transmission groove (21) are fixedly connected with bearings (14), a threaded transmission rod (13) is rotatably connected between the bearings (14), and a sliding block (12) is in threaded connection with the threaded transmission rod (13), the sliding block (12) is fixedly connected to the bottom of the sliding plate (3), the outer end of the threaded transmission rod (13) is fixedly connected with an L-shaped connecting rod (4), and the L-shaped connecting rod (4) is fixedly connected with a rotating handle (5).

2. The tool clamp for the electric discharge machine according to claim 1, characterized in that: the bottom of the sliding plate (3) is symmetrically provided with T-shaped sliding blocks (15), and the T-shaped sliding blocks (15) are connected to the sliding grooves (16) in a sliding mode.

3. The tool clamp for the electric discharge machine according to claim 1, wherein: the clamping mechanisms (11) are symmetrically arranged into two groups, and the clamping mechanisms (11) are connected to the top of the workbench (1) in a sliding mode.

4. The tool clamp for the electric discharge machine according to claim 1, characterized in that: the clamping mechanism (11) is composed of a first fixing plate (17), a second fixing plate (19) and a movable clamping plate (20).

5. The electric discharge machine tool fixture according to claim 4, characterized in that: the first fixing plate (17) is fixedly connected to the sliding sleeve (10), and the second fixing plate (19) is vertically and fixedly connected to the outer end of the first fixing plate (17).

6. The tool clamp for the electric discharge machine according to claim 4, wherein: the movable clamping plate (20) is connected to the first fixing plate (17) in a sliding mode, and a spring (18) is arranged between the second fixing plate (19) and the movable clamping plate (20).