Linear cutting machine tool clamp

Abstract

The utility model discloses a linear cutting machine tool clamp which comprises a machining table, and a fixing clamp used for clamping shaft workpieces is arranged at the top end of the machining table. The fixing clamp comprises a vertical plate arranged at the top end of the machining table, a rotary positioning disc is connected to the vertical plate through a bearing, a positioning circular groove is formed in the end, away from the vertical plate, of the rotary positioning disc, and a clamping driving assembly is arranged on the inner wall of the positioning circular groove. The clamping driving assembly comprises a driving cavity formed in the inner end of the positioning circular groove, a hydraulic cylinder is installed in the driving cavity, an output shaft of the hydraulic cylinder is connected with a movable push plate, at least three first wedge blocks are arranged at the end, away from the hydraulic cylinder, of the movable push plate at equal intervals, and at least three storage grooves are formed in the inner wall of the positioning circular groove. According to the clamping device, shaft workpieces can be conveniently fixed and clamped, so that the shaft workpieces can be conveniently machined, and the clamping device has the advantages of being simple in structure, convenient to operate and high in stability after being clamped.

Description

Technical Field

[0001] This utility model relates to the field of wire EDM machine tool technology, specifically a wire EDM machine tool fixture. Background Technology

[0002] Wire EDM machines use a moving metal wire as a tool electrode and apply a pulsed current between the wire and the workpiece. The workpiece is cut using the corrosive effect of the pulsed discharge. Since wire EDM machines need to be used with tooling fixtures, a tooling fixture for wire EDM machines is required.

[0003] When wire EDM machines process shaft-type workpieces, the workpieces need to be fixed. However, current fixtures are generally complex in structure and have low stability. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a wire EDM machine tool fixture.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution:

[0006] This utility model discloses a wire EDM machine tool fixture, including a processing table, the top of which is provided with a fixing fixture for clamping shaft-type workpieces;

[0007] The fixed fixture includes a vertical plate on the top of the processing table, a rotating positioning disk connected to the vertical plate via a bearing, a positioning groove on the end of the rotating positioning disk away from the vertical plate, and a clamping drive assembly on the inner wall of the positioning groove.

[0008] The clamping drive assembly includes a drive cavity formed at the inner end of the positioning circular groove. A hydraulic cylinder is installed inside the drive cavity. The output shaft of the hydraulic cylinder is connected to a movable push plate. At least three first wedge blocks are equidistantly arranged at one end of the movable push plate away from the hydraulic cylinder. At least three receiving slots are formed on the inner wall of the positioning circular groove. An installation slot is formed inside the rotating positioning disk that communicates with the receiving slots and corresponds to each of the wedge blocks. A second wedge block that abuts against the first wedge block is formed inside the installation slot. A push rod is provided at one end of the second wedge block. A return spring is sleeved on the outside of the push rod. A guide hole is formed inside the rotating positioning disk that communicates with the installation slot and the drive cavity at both ends and allows the first wedge blocks to pass through. A clamping plate that matches the receiving slot is provided at one end of the push rod away from the second wedge block.

[0009] As a preferred embodiment of this utility model, a geared motor for driving the rotating positioning disk is installed on the vertical plate.

[0010] As a preferred technical solution of this utility model, the top of the processing table is provided with a reinforcement component that cooperates with the fixing fixture for reinforcing shaft-type workpieces.

[0011] As a preferred technical solution of this utility model, the reinforcement component includes two guide rods provided at the top of the processing table. The top of the guide rods is provided with a T-shaped guide support rod, and the top of the guide support rod is provided with a circular top plate. A conical groove is opened on the end of the circular top plate facing the rotating positioning plate.

[0012] As a preferred technical solution of this utility model, the top of the processing table is provided with a reciprocating lead screw located between two guide connecting rods, and the bottom center of the guide support rod is provided with a threaded block that is threadedly connected to the reciprocating lead screw.

[0013] As a preferred embodiment of this utility model, one end of the reciprocating lead screw is provided with a wheel.

[0014] The beneficial effects of this utility model are:

[0015] 1. This type of wire EDM machine tool fixture, when clamping shaft-type workpieces, inserts one end of the shaft-type workpiece into the interior of the positioning groove. The output shaft of the hydraulic cylinder pushes the moving push plate to move, and the moving push plate pushes multiple first wedge blocks to move synchronously. The multiple first wedge blocks respectively match and abut against multiple second wedge blocks, causing the second wedge blocks to move towards the positioning groove. The return spring is compressed, and the second wedge blocks push the clamping plate to move via the push rod. The multiple clamping plates can cooperate with each other to clamp and fix the shaft-type workpiece, which is convenient for fixing and clamping the shaft-type workpiece, thus facilitating the processing of the shaft-type workpiece. It has the characteristics of simple structure and easy operation, and has high stability after clamping.

[0016] 2. This type of wire EDM machine tool fixture, after fixing and clamping one end of the shaft-type workpiece, allows the other end of the shaft-type workpiece to rest against the conical groove of the circular top plate, which can make the shaft-type workpiece more stable and the machining accuracy higher. Attached Figure Description

[0017] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0018] Figure 1 This is a schematic diagram of the structure of a wire EDM machine tool fixture according to the present invention;

[0019] Figure 2 This is a cross-sectional view of the rotating positioning disk of a wire EDM machine tool fixture according to this utility model;

[0020] Figure 3 This is a schematic diagram of a guide strut structure for a wire EDM machine tool fixture according to this utility model.

[0021] In the diagram: 1. Machining table; 2. Fixture; 201. Vertical plate; 202. Rotary positioning plate; 203. Positioning groove; 204. Clamping drive assembly; 2041. Drive cavity; 2042. Hydraulic cylinder; 2043. Moving push plate; 2044. First wedge block; 2045. Storage groove; 2046. Mounting groove; 2047. Second wedge block; 2048. Push rod; 2049. Return spring; 20410. Guide hole; 20411. Clamping plate; 3. Gear motor; 4. Reinforcing assembly; 401. Guide connecting rod; 402. Guide support rod; 403. Circular top plate; 404. Conical groove; 405. Reciprocating lead screw; 406. Threaded block; 407. Rotary wheel. Detailed Implementation

[0022] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0023] Example: Figure 1 and Figure 2 As shown, the present invention provides a wire EDM machine tool fixture, including a processing table 1, the top of which is provided with a fixing fixture 2 for clamping shaft-type workpieces;

[0024] The fixed fixture 2 includes a vertical plate 201 located at the top of the processing table 1. A rotating positioning disk 202 is connected to the vertical plate 201 via a bearing. A positioning groove 203 is provided at one end of the rotating positioning disk 202 away from the vertical plate 201. A clamping drive assembly 204 is provided on the inner wall of the positioning groove 203.

[0025] The clamping drive assembly 204 includes a drive cavity 2041 formed at the inner end of the positioning circular groove 203. A hydraulic cylinder 2042 is installed inside the drive cavity 2041. The output shaft of the hydraulic cylinder 2042 is connected to a movable push plate 2043. At least three first wedge blocks 2044 are equidistantly arranged on the movable push plate 2043 at the end away from the hydraulic cylinder 2042. At least three receiving slots 2045 are formed on the inner wall of the positioning circular groove 203. An installation slot 2046 is formed inside the rotating positioning disk 202, which is connected to the receiving slot 2045 and corresponds to each of the wedge blocks 2044. A second wedge block 2047 is formed inside the installation slot 2046, which abuts against the first wedge block 2044. A push rod 2048 is provided at one end of the second wedge block 2047. A return spring 2049 is sleeved on the outside of the push rod 2048. A return spring 2049 is formed inside the rotating positioning disk 202, with two ends respectively connected to the first wedge block 2044. The slot 2046 and the drive cavity 2041 are connected by a guide hole 20410 through which the first wedge block 2044 passes. The end of the push rod 2048 away from the second wedge block 2047 is provided with a clamping plate 20411 that matches the receiving slot 2045. When clamping the shaft workpiece, one end of the shaft workpiece is inserted into the positioning groove. The output shaft of the hydraulic cylinder pushes the moving push plate to move. The moving push plate pushes multiple first wedge blocks to move synchronously. The multiple first wedge blocks match and abut against multiple second wedge blocks respectively, so that the second wedge blocks move towards the positioning groove. The return spring is compressed, and the second wedge blocks push the clamping plate to move via the push rod. The multiple clamping plates can cooperate with each other to clamp and fix the shaft workpiece, which is convenient for fixing and clamping the shaft workpiece, thus facilitating the processing of the shaft workpiece. It has the characteristics of simple structure and easy operation, and has high stability after clamping.

[0026] The vertical plate 201 is equipped with a reduction motor 3 for driving the rotary positioning disk 202 to rotate. The output shaft of the reduction motor 3 drives the rotary positioning disk 202 to rotate, thereby allowing the fixedly clamped shaft workpiece to rotate and thus enabling the processing of various positions of the shaft part.

[0027] Specifically, such as Figure 1 and Figure 3 As shown, the top of the processing table 1 is provided with a reinforcement component 4 that cooperates with the fixing fixture 2 to reinforce the shaft workpiece. The reinforcement component 4 includes two guide rods 401 located at the top of the processing table 1. The top of the guide rods 401 is provided with a T-shaped guide support rod 402. The top of the guide support rod 402 is provided with a circular top plate 403. A conical groove 404 is opened on one end of the circular top plate 403 facing the rotating positioning plate 202. After one end of the shaft workpiece is fixedly clamped, the other end of the shaft workpiece rests in the conical groove 404 of the circular top plate 403, which can make the shaft workpiece more stable and the processing accuracy higher.

[0028] The processing table 1 has a reciprocating lead screw 405 located between two guide rods 401 at its top. The bottom center of the guide support rod 402 has a threaded block 406 that is threadedly connected to the reciprocating lead screw 405. One end of the reciprocating lead screw 405 has a rotating wheel 407. Rotating the rotating wheel 407 causes the reciprocating lead screw 405 to rotate. The reciprocating lead screw 405 is threadedly connected to the threaded block 406, which causes the threaded block 406 to drive the guide support rod 402 to move. This allows for adjustment according to the length of shaft-type workpieces, making it more versatile.

[0029] During operation, this type of wire EDM machine tool fixture, when clamping shaft-type workpieces, inserts one end of the shaft-type workpiece into the positioning groove. The output shaft of the hydraulic cylinder pushes the moving push plate to move, and the moving push plate pushes multiple first wedge blocks to move synchronously. The multiple first wedge blocks respectively match and abut against multiple second wedge blocks, causing the second wedge blocks to move towards the positioning groove. The return spring is compressed, and the second wedge blocks push the clamping plate to move via the push rod. The multiple clamping plates can cooperate with each other to clamp and fix the shaft-type workpiece, which is convenient for fixing and clamping the shaft-type workpiece, thus facilitating the processing of the shaft-type workpiece. It has the characteristics of simple structure and easy operation, and has high stability after clamping.

[0030] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A wire EDM machine tool fixture, comprising a machining table (1), characterized in that, The top of the processing table (1) is provided with a fixing fixture (2) for clamping shaft-type workpieces; The fixed fixture (2) includes a vertical plate (201) at the top of the processing table (1), a rotating positioning disk (202) is connected to the vertical plate (201) via a bearing, a positioning groove (203) is provided at one end of the rotating positioning disk (202) away from the vertical plate (201), and a clamping drive assembly (204) is provided on the inner wall of the positioning groove (203); The clamping drive assembly (204) includes a drive cavity (2041) formed at the inner end of the positioning circular groove (203). A hydraulic cylinder (2042) is installed inside the drive cavity (2041). The output shaft of the hydraulic cylinder (2042) is connected to a movable push plate (2043). At least three first wedge blocks (2044) are equidistantly arranged on the movable push plate (2043) at one end away from the hydraulic cylinder (2042). At least three receiving slots (2045) are formed on the inner wall of the positioning circular groove (203). The interior of the rotating positioning disk (202) is provided with mounting slots (2045) that communicate with the receiving slots (2045) and correspond one-to-one with the wedge blocks (2044). 046), the interior of the mounting groove (2046) is provided with a second wedge block (2047) that abuts against the first wedge block (2044), one end of the second wedge block (2047) is provided with a push rod (2048), and the outside of the push rod (2048) is provided with a return spring (2049). The interior of the rotating positioning disk (202) is provided with a guide hole (20410) with both ends connected to the mounting groove (2046) and the driving cavity (2041) respectively, and allowing the first wedge block (2044) to pass through. The end of the push rod (2048) away from the second wedge block (2047) is provided with a clamping plate (20411) that matches the storage groove (2045).

2. A wire EDM machine tool fixture according to claim 1, characterized in that, A geared motor (3) for driving the rotating positioning disk (202) to rotate is installed on the vertical plate (201).

3. A wire EDM machine tool fixture according to claim 1, characterized in that, The top of the processing table (1) is provided with a reinforcement component (4) that cooperates with the fixed fixture (2) to reinforce shaft-type workpieces.

4. A wire EDM machine tool fixture according to claim 3, characterized in that, The reinforcement component (4) includes two guide rods (401) located at the top of the processing table (1). The top of the guide rod (401) is provided with a T-shaped guide support rod (402). The top of the guide support rod (402) is provided with a circular top plate (403). A conical groove (404) is provided on one end of the circular top plate (403) facing the rotating positioning plate (202).

5. A wire EDM machine tool fixture according to claim 1, characterized in that, The top of the processing table (1) is provided with a reciprocating lead screw (405) located between two guide connecting rods (401), and the bottom of the guide support rod (402) is provided with a threaded block (406) that is threadedly connected to the reciprocating lead screw (405).

6. A wire EDM machine tool fixture according to claim 5, characterized in that, One end of the reciprocating lead screw (405) is provided with a wheel (407).

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