CN213135356U

CN213135356U - Clamping device of numerical control wire cutting machine tool

Info

Publication number: CN213135356U
Application number: CN202021801144.4U
Authority: CN
Inventors: 丁素锦
Original assignee: Taizhou Zhengda Cnc Machine Tool Co ltd
Current assignee: Taizhou Zhengda Cnc Machine Tool Co ltd
Priority date: 2020-08-26
Filing date: 2020-08-26
Publication date: 2021-05-07
Anticipated expiration: 2030-08-26

Abstract

The utility model discloses a clamping device of a numerical control wire cutting machine, which comprises a bottom plate, a first servo motor and a second servo motor, wherein the first servo motor and the second servo motor are respectively and fixedly connected above the bottom plate, the transmission output end of the first servo motor is detachably connected with a support disc through a bolt, the upper surface of the support disc is fixedly connected with a positioning seat, the transmission output end of the second servo motor is connected with a rack through a gear disc, the rack is fixedly connected with the lower surface of a sliding block, the sliding block is fixedly connected with an arc-shaped clamping plate close to the surface of one side of the support disc, the first servo motor and the second servo motor are respectively installed on the surface of the bottom plate, a workpiece can be fixed by magnetic attraction inside the positioning seat of the support disc above the first servo motor, a door plate is opened once, four workpieces can be placed, the production efficiency is improved, and the gear, the slider removes the process steadily, prevents that the work piece from being hindered by the clamp, improves the quality of work piece.

Description

Clamping device of numerical control wire cutting machine tool

Technical Field

The utility model relates to a numerical control wire cut electrical discharge machining bed technical field specifically is a clamping device of numerical control wire cut electrical discharge machining bed.

Background

Wire electric discharge machining is called wire cutting for short. Under the action of pulse power supply, spark discharge is formed between the tool electrode and the workpiece to be machined, and the spark channel instantaneously generates great amount of heat to melt or even vaporize the surface of the workpiece. The wire electrode moves along a preset track by the linear cutting machine through the movement of the XY supporting plate and the UV supporting plate, so that the purpose of processing workpieces is achieved.

Like the electrical discharge machining, the numerical control electrical discharge machining (Wire Cut EDM) also directly utilizes electric energy and heat energy to machine a workpiece, and can machine various conductive materials which are difficult to machine by a common cutting machining method, such as high-hardness, high-brittleness, high-toughness and high-heat-sensitivity metal or semiconductor materials. As one of the important supplements to machining, wire electric discharge machining opens up a new approach for trial production of new products, the production of fine and precise parts and dies, such as punch and die of stamping dies, tool electrodes of electric discharge forming machines, workpiece templates, tool gauges, small workpieces or narrow slits of fine and complex shapes, etc., and can be used to machine sheets in an overlapping manner to obtain consistent dimensions. Since the application of the wire-cut electric discharge machining in the late 50 s of the 20 th century, the wire-cut electric discharge machining is developed very rapidly according to unique characteristics of the wire-cut electric discharge machining, the wire-cut electric discharge machining is gradually a high-precision and high-automation machining method, and the wire-cut electric discharge machining is widely applied to various manufacturing industries such as instruments, electronics, automobiles and the like.

However, the existing clamping device for the numerical control linear cutting machine has the following disadvantages:

1. the clamping device is arranged inside a machine shell of the numerical control linear cutting machine, is poor in clamping stability for cylindrical workpieces, only can clamp one workpiece at a time, after machining is completed, a door plate of the machine shell needs to be opened, and after the machined workpiece is taken, the workpiece to be clamped and machined is placed, so that the operation is troublesome, and the production efficiency is low.

2. The main power of the clamping device is an electric push rod or a hydraulic rod, and in the clamping process, the clamping force is difficult to control, so that indentation or damage of different degrees is caused on the surface of a workpiece, and the product quality is reduced.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a clamping device of numerical control wire cut electrical discharge machining bed to solve the clamping device that is used for numerical control wire cut electrical discharge machining bed that has now among the above-mentioned background art, clamping device installs in the casing of numerical control wire cut electrical discharge machining bed, and to the work piece clamping stability of columnar shape poor, single can only the centre gripping a work piece, after the processing was accomplished, the door plant of casing need be opened, after taking the work piece after the processing, put the work piece of waiting to centre gripping processing, the troublesome poeration, and production efficiency is low; the main power of the clamping device is an electric push rod or a hydraulic rod, and in the clamping process, the clamping force is difficult to control, so that indentation or damage of different degrees is caused on the surface of a workpiece, and the product quality is reduced.

In order to achieve the above object, the utility model provides a following technical scheme: a clamping device of a numerical control wire cutting machine comprises a bottom plate, a first servo motor and a second servo motor, wherein the first servo motor and the second servo motor are fixedly connected above the bottom plate respectively, a transmission output end of the first servo motor is detachably connected with a supporting disc through a bolt, the upper surface of the supporting disc is fixedly connected with a positioning seat, a transmission output end of the second servo motor is in transmission connection with a rack through a gear plate, the rack is fixedly connected to the lower surface of a sliding block, the surface of the sliding block, which is close to one side of the supporting disc, is fixedly connected with an arc-shaped clamping plate, the surface of the bottom plate is respectively provided with the first servo motor and the second servo motor, a workpiece can be fixed by magnetic attraction in the positioning seat of the supporting disc above the first servo motor, a door plate is opened once, four workpieces can be placed, the production efficiency is improved, the slider removes the process steadily, prevents that the work piece from being hindered by the clamp, improves the quality of work piece.

Preferably, the positioning seats are four in number, the supporting disc is evenly distributed at a position close to the edge of the supporting disc, threaded holes are formed in the middle of the surface of the supporting disc, the positioning seats are four in number, the door plate of the shell is opened once, four workpieces can be placed, the number of times of opening and closing the door is reduced, production efficiency is improved, and the supporting disc is convenient to install or disassemble, overhaul and replace through bolts.

Preferably, the positioning seat includes circular arc backplate, magnetic path and rubber pad respectively, the circular arc surface position of circular arc backplate is inlayed and is had the magnetic path, circular arc backplate one side fixed connection rubber pad, circular arc backplate and rubber pad are perpendicular setting, and through fixed to the work piece magnetism on the positioning seat surface, the laminating of columnar order work piece is fixed on circular arc backplate surface through magnetic path magnetism, is convenient for tentatively fix, and the rubber pad has fine frictional force, prevents that columnar order work piece from sideslipping or off normal.

Preferably, the bottom plate surface symmetry welding has the support, fixed connection guide bar between the support provides the holding power to the guide bar through the support.

Preferably, the guiding hole has been seted up to slider surface symmetry, the inside recess that sets up of guiding hole, the inside ball that connects that rotates of recess, through external power supply to the circular telegram of second servo motor, second servo motor passes through toothed disc transmission rack lateral motion, drives the slider along the guide bar lateral sliding, the speed of slider motion is steady, and the circular arc splint to the work piece lateral wall centre gripping of slider, circular arc splint cooperation circular arc backplate use, and the homoenergetic centre gripping is fixed to the columnar order work piece homoenergetic of different specifications, and stability is good, and the clamping-force is adjustable, has fine safeguard effect to the work piece surface.

Preferably, the second servo motor is located below the guide rod, the guide rod penetrates through the guide hole and is in sliding connection, the guide rod guides the sliding block, the guide rod is in sliding connection with the ball inside the guide hole, and the sliding block runs stably.

The utility model provides a clamping device of numerical control wire cut electrical discharge machining bed possesses following beneficial effect:

(1) the utility model discloses install first servo motor respectively at the bottom plate surface, the joint support disc can be dismantled through the bolt to first servo motor's transmission output, supports fixed surface connection positioning seat on the disc, can support the fixed work piece of the inside magnetism of positioning seat of disc in first servo motor top, once opens the door plant, can place four work pieces, supports the disc through the drive of first servo motor and rotates, changes the position of treating the processing work piece, improves production efficiency.

(2) The utility model discloses second servo motor's transmission output passes through the toothed disc and the rack gear is connected, and rack fixed connection is at the slider lower surface, and the slider is close to and supports disc a side fixed surface connection circular arc type splint, and the toothed disc passes through the rack and drives slider lateral sliding, and the slider removes the process steady, prevents that the work piece from being pressed from both sides the injury, improves the quality of work piece.

Drawings

Fig. 1 is an overall schematic view of a clamping device of a numerically controlled wire cutting machine according to the present invention;

fig. 2 is a schematic top view of a supporting disc of a clamping device of a numerically controlled wire cutting machine according to the present invention;

FIG. 3 is a schematic view of a bracket and a guide rod of a clamping device of a numerically controlled wire cutting machine according to the present invention;

fig. 4 is a schematic side view of the slider of the clamping device of the numerical control wire cutting machine of the present invention.

In the figure: 1. a base plate; 2. a first servo motor; 3. a support disc; 301. a threaded hole; 4. positioning seats; 5. a circular arc-shaped back plate; 6. a magnetic block; 7. a rubber pad; 8. a second servo motor; 9. a gear plate; 10. a rack; 11. a support; 12. a guide bar; 13. a slider; 14. a circular arc-shaped splint; 15. a guide hole; 16. a groove; 17. and a ball.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

As shown in fig. 1-4, the utility model provides a technical solution: the utility model provides a clamping device of numerical control wire cut electrical discharge machining bed, includes bottom plate 1, first servo motor 2 and second servo motor 8, 1 top of bottom plate is the first servo motor 2 of fixedly connected with and second servo motor 8 respectively, the connection support disc 3 can be dismantled through the bolt to the transmission output of first servo motor 2, fixed surface connects positioning seat 4 on the support disc 3, the transmission output of second servo motor 8 passes through toothed disc 9 and the transmission of rack 10 and connects, rack 10 fixed connection is at slider 13 lower surface, slider 13 is close to and supports 3 side fixed surface of disc and connects circular arc type splint 14.

The positioning seats 4 are four in number, the positioning seats are uniformly distributed on the supporting disc 3 and close to the edge position, threaded holes 301 are formed in the middle position of the surface of the supporting disc 3, the positioning seats 4 are four, the door plate of the shell is opened once, four workpieces can be placed, the number of times of opening and closing the door is reduced, the production efficiency is improved, the supporting disc 3 can be conveniently mounted or dismounted through bolts, and the maintenance and the replacement are convenient.

The positioning seat 4 comprises an arc-shaped back plate 5, a magnetic block 6 and a rubber pad 7, the magnetic block 6 is inlaid in the arc-shaped surface of the arc-shaped back plate 5, one side of the arc-shaped back plate 5 is fixedly connected with the rubber pad 7, the arc-shaped back plate 5 and the rubber pad 7 are vertically arranged, the workpiece is fixed in a magnetic attraction mode on the surface of the positioning seat 4, the columnar workpiece is attached to the surface of the arc-shaped back plate 5, the magnetic attraction fixing is achieved through the magnetic block 6, the initial fixing is facilitated, the rubber pad 7 has good friction force, and the columnar workpiece is prevented from sideslipping.

The surface of the bottom plate 1 is symmetrically welded with brackets 11, guide rods 12 are fixedly connected between the brackets 11, and supporting force is provided for the guide rods 12 through the brackets 11.

Guide hole 15 has been seted up to 13 surface symmetries of slider, guide hole 15 is inside to be seted up recess 16, the inside rotation of recess 16 connects ball 17, switch on to second servo motor 8 through external power supply, second servo motor 8 passes through the 10 lateral motion of toothed disc 9 transmission rack, drive slider 13 along guide bar 12 lateral sliding, the speed of slider 13 motion is steady, 14 to the work piece lateral wall centre gripping of arc type splint up to

slider

13, 14 cooperation arc type backplate 5 of arc type splint use, it is fixed to the columnar order work piece homoenergetic centre gripping of different specifications, good stability, the clamping-force is adjustable, has fine safeguard effect to the work piece surface.

The second servo motor 8 is located below the guide rod 12, the guide rod 12 penetrates through the guide hole 15 and is in sliding connection, the guide rod 12 guides the sliding block 13, the guide rod 12 is in sliding connection with the ball 17 inside the guide hole 15, and the sliding block 13 runs stably.

When the clamping device of the numerical control wire cutting machine tool works, after the door plate is opened relative to the machine shell, the surface of the positioning seat 4 is used for magnetically attracting and fixing a workpiece, the columnar workpiece is attached to the surface of the arc-shaped back plate 5 and is magnetically attracted and fixed through the magnetic block 6, preliminary fixing is facilitated, the rubber pad 7 provides friction force to prevent the columnar workpiece from sideslipping or deviating, and four workpieces can be placed above the supporting disc 3 by a worker once; the second servo motor 8 is electrified through an external power supply, the second servo motor 8 drives the rack 10 to transversely move through the gear disc 9, the sliding block 13 is driven to transversely slide along the guide rod 12, the moving speed of the sliding block 13 is stable until the arc-shaped clamping plate 14 of the sliding block 13 clamps the side wall of the workpiece, the arc-shaped clamping plate 14 is matched with the arc-shaped back plate 5 for use, cylindrical workpieces with different specifications can be clamped and fixed, and after clamping is completed, cutting operation is performed through cutting equipment inside the machine shell; after cutting, through the reversal of external control panel drive second servo motor 8, circular arc type splint 14 breaks away from the work piece after the processing, and first servo motor 2 drive supports disc 3 and rotates 90 degrees, treats that the work piece of processing removes to cutting device below, and rethread second servo motor 8 drive circular arc type splint 14 is fixed to the work piece centre gripping can.

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 invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a clamping device of numerical control wire cut electrical discharge machining bed which characterized in that: including bottom plate (1), first servo motor (2) and second servo motor (8), bottom plate (1) top is first servo motor (2) of fixedly connected with and second servo motor (8) respectively, the joint support disc (3) can be dismantled through the bolt to the transmission output of first servo motor (2), support fixed surface connection positioning seat (4) on disc (3), the transmission output of second servo motor (8) passes through toothed disc (9) and rack (10) transmission and connects, rack (10) fixed connection is at slider (13) lower surface, slider (13) are close to support disc (3) one side fixed surface and connect circular arc type splint (14).

2. A clamping device of a numerical control wire cutting machine according to claim 1, characterized in that: the positioning seats (4) are four in number and are uniformly distributed at the positions, close to the edges, of the supporting disc (3), and threaded holes (301) are formed in the middle of the surface of the supporting disc (3).

3. A clamping device of a numerical control wire cutting machine according to claim 1, characterized in that: the positioning seat (4) comprises an arc-shaped back plate (5), a magnetic block (6) and a rubber pad (7), the magnetic block (6) is embedded in the arc surface of the arc-shaped back plate (5), the rubber pad (7) is fixedly connected to one side of the arc-shaped back plate (5), and the arc-shaped back plate (5) and the rubber pad (7) are perpendicularly arranged.

4. A clamping device of a numerical control wire cutting machine according to claim 1, characterized in that: the surface of the bottom plate (1) is symmetrically welded with brackets (11), and guide rods (12) are fixedly connected between the brackets (11).

5. A clamping device of a numerical control wire cutting machine according to claim 1, characterized in that: the surface of the sliding block (13) is symmetrically provided with guide holes (15), grooves (16) are formed in the guide holes (15), and the grooves (16) are rotatably connected with balls (17).

6. A clamping device of a numerical control wire cutting machine according to claim 1, characterized in that: the second servo motor (8) is located below the guide rod (12), and the guide rod (12) penetrates through the guide hole (15) and is in sliding connection.