CN212704841U

CN212704841U - Tool clamp for electric spark machine

Info

Publication number: CN212704841U
Application number: CN202021367329.9U
Authority: CN
Inventors: 李明
Original assignee: Hubei Puxintong Precision Machinery Co ltd
Current assignee: Hubei Puxintong Precision Machinery Co ltd
Priority date: 2020-07-13
Filing date: 2020-07-13
Publication date: 2021-03-16
Anticipated expiration: 2030-07-13

Abstract

The utility model provides a frock clamp for electric spark machine, including setting up two sets of dress mechanisms of pressing from both sides on the workstation of electric spark machine, it sets up the both sides at the work piece respectively to press from both sides dress mechanism, be equipped with the work cistern on the workstation, it includes the backup pad to press from both sides dress mechanism, be equipped with screw rod and slide bar between backup pad and the work cistern lateral wall, the screw rod both ends are rotated and are installed on backup pad and work cistern lateral wall, the screw rod passes through the actuating mechanism drive, be equipped with the nut on the screw rod, be equipped with the slider on the slide bar, nut and slider pass through the connecting seat and connect, the connecting seat passes through the. The tool clamp is not influenced by working fluid, and automatic adjustment of the clamping head is realized.

Description

Tool clamp for electric spark machine

Technical Field

The utility model belongs to spark machine equipment field, in particular to a frock clamp for 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; it is a special processing method for removing metal material by using electroerosion action produced when pulse discharge is produced between two electrodes immersed in working liquor.

In the working process, the electrode and the workpiece are respectively connected with two poles of a pulse power supply and immersed into working liquid or the working liquid is filled into a discharge gap, the tool electrode is controlled by a gap automatic control system to feed to the workpiece, and when the gap between the two electrodes reaches a certain distance, pulse voltage applied to the two electrodes punctures the working liquid to generate spark discharge.

CN210451277U A clamp for electric discharge machine, comprising a bottom plate, a fixed plate is fixedly arranged on the top end of the bottom plate, the surface of the fixed plate is fixedly provided with a fastening screw, the left side of the fixed plate is fixedly provided with a fixing device, the top end of the fixing device is provided with a sliding groove, the top end of the sliding groove is in friction connection with a clamping block, a buffer device is movably arranged at the left side of the clamping block and comprises a fixed concave plate, a telescopic spring is fixedly arranged at the right side of the fixed concave plate, the other end of the extension spring is fixedly provided with a stabilizing block, the other end of the stabilizing block is fixedly provided with a connecting plate, a rubber pad is fixedly arranged on the surface of the connecting plate, the other end of the buffer device is fixedly connected with a screw rod, the fixture block is characterized in that a groove hole is formed in the surface of the fixture block, a connecting rod is fixedly connected to the bottom end of the fixture block, and a fixing block is fixedly mounted at the bottom end of the connecting rod. This frock clamp soaks in the working solution, influences the convenience of operation.

Disclosure of Invention

The utility model aims to solve the technical problem that a frock clamp for electric spark machine is provided, does not receive the influence of working solution, realizes the automatically regulated to the clamping head.

In order to solve the technical problem, the utility model discloses the technical scheme who adopts is: the utility model provides a frock clamp for electric spark machine, including setting up two sets of dress mechanisms of pressing from both sides on the workstation of electric spark machine, it sets up the both sides at the work piece respectively to press from both sides dress mechanism, be equipped with the work cistern on the workstation, it includes the backup pad to press from both sides dress mechanism, be equipped with screw rod and slide bar between backup pad and the work cistern lateral wall, the screw rod both ends are rotated and are installed on backup pad and work cistern lateral wall, the screw rod passes through the actuating mechanism drive, be equipped with the nut on the screw rod, be equipped with the slider on the slide bar, nut and slider pass through the connecting seat and connect, the connecting.

In a preferred scheme, the driving mechanism is a speed reducing motor, and the speed reducing motor is fixed on the workbench.

In the preferred scheme, actuating mechanism is equipped with the drive shaft of being connected with driving motor's output including setting up the follow driving wheel at the screw rod tip on the workstation, and the drive shaft rotates and installs on the mount pad, is equipped with the action wheel in the drive shaft, and the action wheel passes through belt transmission with follow driving wheel, and the spiral direction of two sets of fixture's screw rod is opposite.

In a preferred scheme, the connecting mechanism comprises a connecting rod arranged on the clamping head, and the other end of the connecting rod is connected with the clamping seat.

In the preferred scheme, a threaded hole is formed in the clamping seat, and an external thread matched with the threaded hole is formed in the end part of the connecting rod.

In the preferred scheme, be equipped with the through-hole that supplies the connecting rod to pass on the grip slipper, the tip of connecting rod be equipped with stop nut cooperation external screw thread, be equipped with the spring between grip slipper and the clamping head, the spring suit is on the connecting rod.

The utility model provides a pair of a frock clamp for electric spark machine drives the screw rod through actuating mechanism and rotates, drives the connecting seat and removes, makes two holding heads remove in opposite directions, realizes the centre gripping to the work piece. In the implementation process, the contact with working liquid is not needed, and the operation is convenient. Preferably, be equipped with the spring between grip slipper and the holding head, spring suit is connected 8 on, through the cushioning effect of spring, prevents at the clamping process, and clamping-force is too big and cause the damage on workpiece surface, destroys the accuracy, guarantees processingquality.

Drawings

The invention will be further explained with reference to the following figures and examples:

fig. 1 is a schematic view of the overall structure of the present invention;

fig. 2 is a preferred top view of the present invention;

FIG. 3 is an enlarged view taken at A in FIG. 2;

in the figure: the automatic clamping device comprises a workbench 1, a working liquid tank 2, a supporting plate 3, a screw rod 4, a sliding rod 5, a nut 6, a sliding block 7, a connecting seat 8, a supporting rod 9, a clamping seat 10, a clamping head 11, a speed reducing motor 12, a driven wheel 13, a driving motor 14, a driving shaft 15, a mounting seat 16, a driving wheel 17, a connecting rod 18, a limiting nut 19 and a spring 20.

Detailed Description

As shown in figure 1, a tooling clamp for an electric spark machine comprises two groups of clamping mechanisms arranged on a workbench 1 of the electric spark machine, the clamping mechanisms are respectively arranged at two sides of a workpiece, a working liquid tank 2 is arranged on the workbench 1, the clamping mechanisms comprise a supporting plate 3, a screw rod 4 and a slide rod 5 are arranged between the supporting plate 3 and the side wall of the working liquid tank 2, the screw rod 4 and the slide rod 5 are arranged in parallel, two ends of the screw rod 4 are rotatably arranged on the side wall of the supporting plate 3 and the side wall of the working liquid tank 2 through bearings, the screw rod 4 is driven through a driving mechanism, in the embodiment, the driving mechanism is a speed reducing motor 12, the speed reducing motor 12 is fixed on the workbench 1, a nut 6 matched with the screw rod 4 is arranged on the screw rod 4, a slide block 7 is arranged on the slide rod 5, specifically, the slide block 7 is slidably sleeved on the slide rod 5, the, the clamping base 10 is connected to the clamping head 11 through a connecting mechanism, in this embodiment, the connecting mechanism includes a connecting rod 18 disposed on the clamping head 11, and the other end of the connecting rod 18 is connected to the clamping base 10.

Preferably, a threaded hole is formed in the clamping seat 10, and an external thread matched with the threaded hole is formed at the end of the connecting rod 18.

The replacement of the gripping head 11 is achieved by the screw connection of the connection rod 18 with the holder 10, so that the gripping head 11 can be replaced according to the outer shape of the workpiece.

When the clamping device is used specifically, a workpiece is placed in the working liquid groove 2, after the positioning is accurate, the screw rod 4 is driven to rotate through the speed reducing motor 12, the nut 6 is driven to move along the screw rod 4, the connecting seat 8 is driven to move, the two clamping heads 11 move oppositely, and the workpiece is clamped. In the implementation process, the contact with working liquid is not needed, and the operation is convenient.

Preferably, as shown in fig. 2, the driving mechanism includes a driven wheel 13 disposed at an end of the screw rod 4, a driving shaft 15 connected to an output end of the driving motor 14 is disposed on the working table 1, the driving shaft 15 is rotatably mounted on a mounting seat 16, a driving wheel 17 is disposed on the driving shaft 15, the driving wheel 17 and the driven wheel 13 are driven by a belt, and the screw directions of the screw rods 4 of the two sets of clamping mechanisms are opposite.

The driving shaft 15 is driven to rotate by the driving motor 14, the two screw rods 4 synchronously rotate through belt transmission, and the two clamping heads 11 synchronously move in opposite directions due to the fact that the spiral directions of the screw rods 4 of the two groups of clamping mechanisms are opposite, so that the stress of a workpiece is uniform.

Preferably, as shown in fig. 3, a through hole for the connecting rod 18 to pass through is formed in the clamping seat 10, an external thread matched with the limit nut 19 is formed at the end of the connecting rod 18, a spring 20 is arranged between the clamping seat 10 and the clamping head 11, and the spring 20 is sleeved on the connecting rod 18.

The connecting rod 18 is prevented from being separated from the holder 10 by providing a limit nut 19. When the clamping head 20 clamps the workpiece, the clamping head 20 is pressed to enable the connecting rod 19 to move along the through hole, and the spring 20 plays a buffering role. The damage to the surface of a workpiece, the damage to the precision and the machining quality caused by overlarge clamping force in the clamping process are prevented.

Claims

1. The utility model provides a frock clamp for electric spark machine which characterized in that: including setting up two sets of dress mechanisms of pressing from both sides on workstation (1) of electric spark machine, it sets up the both sides at the work piece respectively to press from both sides dress mechanism, be equipped with work cistern (2) on workstation (1), it includes backup pad (3) to press from both sides dress mechanism, be equipped with screw rod (4) and slide bar (5) between backup pad (3) and work cistern (2) lateral wall, screw rod (4) both ends are rotated and are installed on backup pad (3) and work cistern (2) lateral wall, screw rod (4) are through the actuating mechanism drive, be equipped with nut (6) on screw rod (4), be equipped with slider (7) on slide bar (5), nut (6) and slider (7) are connected through connecting seat (8), connecting seat (10) are connected through bracing piece (9) in connecting seat (8), clamping head (11) are connected through coupling mechanism in.

2. A tooling clamp for electric discharge machines according to claim 1, characterized in that: the driving mechanism is a speed reducing motor (12), and the speed reducing motor (12) is fixed on the workbench (1).

3. A tooling clamp for electric discharge machines according to claim 1, characterized in that: the driving mechanism comprises a driven wheel (13) arranged at the end part of the screw rod (4), a driving shaft (15) connected with the output end of a driving motor (14) is arranged on the workbench (1), the driving shaft (15) is rotatably installed on the installation seat (16), a driving wheel (17) is arranged on the driving shaft (15), the driving wheel (17) and the driven wheel (13) are in belt transmission, and the screw directions of the screw rods (4) of the two groups of clamping mechanisms are opposite.

4. A tooling clamp for electric discharge machines according to claim 1, characterized in that: the connecting mechanism comprises a connecting rod (18) arranged on the clamping head (11), and the other end of the connecting rod (18) is connected with the clamping seat (10).

5. A tooling clamp for electric discharge machines according to claim 4, characterized in that: a threaded hole is formed in the clamping seat (10), and an external thread matched with the threaded hole is formed in the end portion of the connecting rod (18).

6. A tooling clamp for electric discharge machines according to claim 4, characterized in that: the clamping device is characterized in that a through hole for the connecting rod (18) to pass through is formed in the clamping seat (10), an external thread matched with the limiting nut (19) is arranged at the end of the connecting rod (18), a spring (20) is arranged between the clamping seat (10) and the clamping head (11), and the spring (20) is sleeved on the connecting rod (18).