A slow wire machine tool workpiece clamp

Abstract

The utility model discloses a kind of slow wire machine tool workpiece clamps, including sliding table, base, insulating seat, movable position compression assembly and fixed position compression assembly;First lock nut is connected and installed on first T type screw rod;Fixed position compression assembly is composed of second carrier plate, guide column, second pressing block and second lock nut, and second pressing block is connected and installed on guide column by its second long round hole sleeve connection.This clamp uses fixed position compression assembly as main positioning clamp, with the advantage of firm clamping.Movable position compression assembly is used as auxiliary positioning clamp, with the advantage of adjusting avoiding plate-shaped workpiece right side stud or positioning convex, in the case that fixed position compression assembly appears with plate-shaped workpiece left side stud or positioning convex interference cannot be clamped, only need to remove fixed position compression assembly and replace the model of adaptation, with the advantage of adjusting convenient, and clamping positioning firm.

Description

Technical Field

[0001] This utility model belongs to the field of wire EDM technology, and in particular relates to a workpiece fixture for a slow wire EDM machine. Background Technology

[0002] Wire EDM (Electrical Discharge Machining) uses a moving metal wire (molybdenum, copper, or alloy wire) as the electrode. A pulsed electrical discharge between the electrode wire and the workpiece generates high temperatures that melt or vaporize the metal, creating a kerf and thus cutting the part. Existing workpiece fixtures, when clamping plate-shaped workpieces with studs or locating protrusions, experience interference between the clamping block and the studs or locating protrusions, and the position of the clamping block cannot be adjusted. This requires complete disassembly and replacement of the clamping assembly, a cumbersome process that impacts the overall efficiency of wire EDM. Summary of the Invention

[0003] The technical problem to be solved by this utility model is to provide a workpiece fixture for a slow wire EDM machine that allows for convenient adjustment of the pressure block position.

[0004] To solve the above-mentioned technical problems, the present invention is achieved through the following technical solution: a workpiece fixture for a slow wire EDM machine tool, comprising a slide, a base, an insulating seat, a movable clamping assembly, and a fixed clamping assembly; The slide table has several second T-slots on its surface. Two bases are fixedly installed in the second T-slots by second T-bolts and nuts, and the insulating base is fixedly installed on the base. The movable position clamping assembly consists of a first carrier plate, a first T-shaped screw, a first pressure block, and a first lock nut. The first carrier plate is fixedly installed on the insulating seat on the right side. The first carrier plate is provided with a first T-shaped groove. Two first T-shaped screws are slidably installed in the first T-shaped groove. The first pressure block is sleeved on the first T-shaped screw through its first elongated hole. The first lock nut is screwed on the first T-shaped screw. The fixed-position clamping assembly consists of a second carrier plate, guide posts, a second pressure block, and a second lock nut. The second carrier plate is fixedly installed on the insulating seat on the right side. The two guide posts are fixedly installed on the second carrier plate. The second pressure block is sleeved on the guide post through its second elongated hole. The guide post has an external thread structure. The second lock nut is screwed onto the external thread structure of the guide post.

[0005] Preferably, the outer side of the table surface has an annular groove.

[0006] Preferably, sliders are fixedly installed on the left and right sides of the bottom surface of the slide table.

[0007] Preferably, the center distance between the two guide posts is 10-25cm.

[0008] Preferably, the first carrier plate has a first limiting shoulder surface, and the second carrier plate has a second limiting shoulder surface.

[0009] Preferably, a V-shaped groove running through the front and back is provided in the middle of the first carrier plate.

[0010] Preferably, the supporting surface of the first carrier plate and the edge of the first limiting shoulder surface are provided with a first relief groove that runs through the front and back, and the supporting surface of the second carrier plate and the edge of the second limiting shoulder surface are provided with a second relief groove that runs through the front and back.

[0011] Preferably, the top edge of the slide table is provided with a first threaded hole for mounting a protective cover.

[0012] Compared with the prior art, the advantages of this utility model are: this fixture uses a fixed-position clamping assembly as the main positioning fixture, which has the advantage of firm clamping. The movable-position clamping assembly serves as an auxiliary positioning fixture, which has the advantage of easy adjustment to avoid the right-side stud or positioning protrusion of the plate-shaped workpiece. When the fixed-position clamping assembly interferes with the left-side stud or positioning protrusion of the plate-shaped workpiece and cannot clamp, it is only necessary to remove and replace the fixed-position clamping assembly with a suitable model, which has the advantages of convenient adjustment and firm clamping and positioning. Attached Figure Description

[0013] The present invention will be further described below with reference to the accompanying drawings.

[0014] Figure 1 This is a perspective view of the utility model from the left side.

[0015] Figure 2 This is a perspective view of the utility model from the right side.

[0016] Figure 3 This is the front view of this utility model.

[0017] Figure 4 yes Figure 3 Enlarged structural diagram at point M. Detailed Implementation

[0018] The present invention will now be described in detail with reference to specific embodiments: like Figures 1 to 3 The workpiece fixture shown is for a slow wire EDM machine, including a slide table 1, a base 4, an insulating seat 5, a movable clamping assembly and a fixed clamping assembly; The slide table 1 has several second T-slots 21 on its table surface 2. Two bases 4 are fixedly installed in the second T-slots 21 by second T-bolts and nuts. The insulating base 5 is fixedly installed on the base 4. The movable position clamping assembly consists of a first carrier plate 6, a first T-shaped screw 81, a first pressure block 82, and a first lock nut. The first carrier plate 6 is fixedly installed on the insulating seat 5 on the right side. The first carrier plate 6 is provided with a first T-shaped groove 80. Two first T-shaped screws 81 are slidably installed in the first T-shaped groove 80. The first pressure block 82 is sleeved on the first T-shaped screw 81 through its first elongated hole 85. The first lock nut is screwed on the first T-shaped screw 81. The fixed-position clamping assembly consists of a second carrier plate 7, guide posts 91, a second pressure block 92, and a second lock nut. The second carrier plate 7 is fixedly installed on the insulating seat 5 on the right side. The two guide posts 91 are fixedly installed on the second carrier plate 7. The second pressure block 92 is sleeved on the guide post 91 through its second elongated hole 95. The guide post 91 has an external thread structure. The second lock nut is screwed onto the external thread structure of the guide post 91.

[0019] The outer side of the table 2 has an annular groove 3. During the wire cutting process, the coolant flows from the workpiece into the annular groove 3, and is then pumped out, collected, filtered, and circulated.

[0020] Sliders 11 are fixedly installed on the left and right sides of the bottom surface of the slide table 1 so that the slide table 1 can be installed with the slide rail on the machine platform through the sliders 11.

[0021] The center distance between the two guide pillars 91 is 20cm, which meets the usage requirements of most workpiece sizes.

[0022] The first carrier plate 6 has a first limiting shoulder surface 61, and the second carrier plate 7 has a second limiting shoulder surface 71. During processing, the workpiece is positioned by fitting against the first limiting shoulder surface 61, and then the workpiece is pressed and fixed by the first pressure block 82 and the second pressure block 92.

[0023] A V-shaped groove 63 is provided in the middle of the first carrier plate 6, which runs through the second limiting shoulder surface 71. A rod-shaped tool is inserted into the V-shaped groove 63 to facilitate pushing the workpiece to fit against the first limiting shoulder surface 61 for positioning.

[0024] The supporting surface of the first carrier plate 6 and the edge of the first limiting shoulder surface 61 are provided with a first relief groove 60 that runs through the front and back. Similarly, the supporting surface of the second carrier plate 7 and the edge of the second limiting shoulder surface 71 are provided with a second relief groove 70 that runs through the front and back. The edge of the plate-shaped workpiece is embedded into the first relief groove 60, which can improve the fit between the plate-shaped workpiece and the first limiting shoulder surface 61. Movable clamping components can be provided on both the left and right insulating seats 5, eliminating the need for fixed clamping components. This allows the fixture to better accommodate different types of plate-shaped workpieces. The second relief groove 70 allows for easy replacement of the movable clamping components to meet actual usage requirements.

[0025] The top edge of the slide table 1 is provided with a first threaded hole 12 for mounting a protective cover. The protective cover is mounted on the first threaded hole 12 by screws, which serves to prevent coolant from splashing.

[0026] Because of the studs or positioning protrusions on the plate-shaped workpiece, a fixing clamping assembly that can avoid the studs or positioning protrusions on the left side of the plate-shaped workpiece is installed on the insulating seat 5 on the left side. When clamping and fixing the plate-shaped workpiece, the left side of the plate-shaped workpiece is first attached to the first limiting shoulder surface 61. The position of the first T-screw 81 in the first T-slot 80 is adjusted so that the first T-screw 81 and the first pressure block 82 avoid the studs or positioning protrusions on the right side of the plate-shaped workpiece. The second lock nut and the first lock nut are tightened. The plate-shaped workpiece is clamped and fixed by the first pressure block 82 cooperating with the first carrier plate 6 and the second pressure block 92 cooperating with the second carrier plate 7.

Claims

1. A workpiece fixture for a slow wire EDM machine, characterized in that: Includes a slide (1), a base (4), an insulating seat (5), a movable clamping assembly, and a fixed clamping assembly; The slide table (1) has several second T-shaped grooves (21) on its table surface (2). Two bases (4) are fixedly installed in the second T-shaped grooves (21) by second T-shaped screws and nuts. The insulating seat (5) is fixedly installed on the base (4). The movable position clamping assembly consists of a first carrier plate (6), a first T-shaped screw (81), a first pressure block (82), and a first lock nut. The first carrier plate (6) is fixedly installed on the insulating seat (5) on the right side. A first T-shaped groove (80) is provided on the first carrier plate (6). Two first T-shaped screws (81) are slidably installed in the first T-shaped groove (80). The first pressure block (82) is sleeved on the first T-shaped screw (81) through its first elongated hole (85). The first lock nut is screwed on the first T-shaped screw (81). The fixed position clamping assembly consists of a second carrier plate (7), guide posts (91), a second pressure block (92), and a second lock nut. The second carrier plate (7) is fixedly installed on the insulating seat (5) on the right side. The two guide posts (91) are fixedly installed on the second carrier plate (7). The second pressure block (92) is sleeved on the guide post (91) through its second elongated hole (95). The guide post (91) has an external thread structure. The second lock nut is screwed onto the external thread structure of the guide post (91).

2. The workpiece fixture for a slow wire EDM machine according to claim 1, characterized in that: The outer side of the tabletop (2) has an annular groove (3).

3. The workpiece fixture for a slow wire EDM machine according to claim 1, characterized in that: Sliders (11) are fixedly installed on the left and right sides of the bottom surface of the slide table (1).

4. The workpiece fixture for a slow wire EDM machine according to claim 1, characterized in that: The center distance between the two guide posts (91) is 10-25cm.

5. The workpiece fixture for a slow wire EDM machine according to claim 1, characterized in that: The first carrier plate (6) has a first limiting shoulder surface (61), and the second carrier plate (7) has a second limiting shoulder surface (71).

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