Clamp for electric spark machining

Abstract

The utility model provides a clamp for electric spark machining, which relates to the technical field of electric spark machining and comprises a clamp assembly, a clamping pad assembly is arranged on the side face of the clamp assembly, an adjusting assembly is arranged at the bottom of the clamp assembly, the clamp assembly comprises a fixed clamping plate and a movable clamping plate, the clamping pad assembly comprises two clamping pads, and the movable clamping plate is arranged on the movable clamping plate. Mounting blocks are symmetrically mounted on the side face of the clamping pad, a plurality of friction strips are distributed on the side face of the clamping pad, and mounting grooves are formed in the side face of the fixed clamping plate and the side face of the movable clamping plate. The installation blocks are installed in the installation grooves in a sliding mode, the clamping pads can be conveniently installed on the side faces of the fixed clamping plate and the movable clamping plate, the clamping pads are matched with the friction strips, the fixed clamping plate and the movable clamping plate are prevented from making direct contact with the surface of a machined part, and therefore the situation that the surface of the workpiece is scratched in the clamping process is effectively avoided; indentations caused by pressure concentration are reduced, and the completeness of the surface of a machined part is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of electric spark machining, in particular to a clamp for electric spark machining. Background Art

[0002] Electrospark machining (EDM) utilizes a discharge electrode (EDM electrode) with a specific geometry to burn the electrode's geometry into a metal (conductive) part, thereby machining the material to its desired size. It is now widely used in industries such as mold manufacturing, aerospace, electronics, automotive, and light industry to solve the machining problems of difficult-to-machine materials and complex-shaped parts. During EDM, the workpiece must be secured, necessitating the use of a fixture.

[0003] During use, existing fixtures usually come into direct contact with the workpiece, which can easily leave scratches and indentations on the workpiece surface, causing local damage to the workpiece surface and increasing the maintenance cost of the workpiece. Utility Model Content

[0004] The purpose of the utility model is to solve the problem in the prior art that the fixture usually comes into direct contact with the workpiece during use, which easily leaves scratches and indentations on the surface of the workpiece, thereby causing local damage to the workpiece surface and increasing the maintenance cost of the workpiece. A fixture for electrospark machining is proposed.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical solutions: a fixture for electrospark machining, comprising a fixture assembly, a clamping pad assembly is provided on the side of the fixture assembly, an adjustment assembly is provided on the bottom of the fixture assembly, the fixture assembly comprises a fixed clamping plate and a movable clamping plate, the clamping pad assembly comprises two clamping pads, the sides of the clamping pads are symmetrically installed with mounting blocks, a plurality of friction strips are distributed on the sides of the clamping pads, the sides of the fixed clamping plate and the movable clamping plate are provided with mounting grooves, the mounting blocks are slidably mounted inside the mounting grooves, and limiting grooves are symmetrically provided on both sides of the clamping pads, and a fixing frame is installed inside the limiting grooves.

[0006] Preferably, the adjustment assembly includes a right-angle frame, a tension adjustment bolt is passed through the top of the right-angle frame, and a docking adjustment bolt is passed through the interior of one end of the right-angle frame.

[0007] Preferably, a pull rod is installed on the side of the fixing frame, and a spring is provided on the outside of the pull rod.

[0008] Preferably, a mounting bracket is installed on the outer side of the pull rod, and one end of the spring is connected to the side surface of the mounting bracket.

[0009] Preferably, a support block is symmetrically installed on the outer side of the docking adjustment bolt, a support plate is installed on the bottom of the support block, and a mounting column is installed on the bottom of the support plate.

[0010] Preferably, adjusting bolts are passed through the interior of the fixed splint and the movable splint, a slider is installed at the bottom of the fixed splint, one end of the slider passes through the interior of the movable splint, and a fixed plate is installed at the bottom of the slider.

[0011] Compared with the prior art, the advantages and positive effects of the present invention are:

[0012] 1. In the utility model, the mounting block is slidably mounted inside the mounting groove, which facilitates the installation of the clamping pad on the side of the fixed clamping plate and the movable clamping plate. The clamping pad cooperates with the friction strip to avoid direct contact between the fixed clamping plate and the movable clamping plate and the surface of the workpiece, thereby effectively avoiding scratches on the workpiece surface during the clamping process, reducing indentations caused by pressure concentration, and ensuring the integrity of the workpiece surface. At the same time, it reduces the wear of the fixed clamping plate and the movable clamping plate, extends the service life of the fixed clamping plate and the movable clamping plate, and reduces the maintenance and replacement costs of the fixed clamping plate and the movable clamping plate. The clamping pad and the friction strip are conducive to filling the tiny gap between the workpiece and the fixed clamping plate and the movable clamping plate, thereby improving the stability of the clamped workpiece and ensuring that the workpiece will not be displaced during the processing, thereby improving the processing accuracy.

[0013] 2. In the utility model, by using a wrench to rotate the tension adjustment bolt, it is convenient to loosen the slider to achieve flip rotation. At the same time, the wrench is used to rotate the docking adjustment bolt to loosen the right-angle frame, which makes it convenient to drive the right-angle frame to rotate and adjust the angle. It is beneficial to adjust the angle of the fixed splint and the movable splint in multiple directions, and it is beneficial to accurately adjust the angle of the workpiece according to different processing requirements to achieve the best processing effect, improve the processing accuracy, and thus improve the processing quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 The utility model provides a three-dimensional structural diagram of a fixture for electrospark machining;

[0015] Figure 2 This is a schematic structural diagram of another angle of a fixture for electrospark machining proposed by the present invention;

[0016] Figure 3 The utility model provides a partial exploded structural diagram of a fixture for electrospark machining;

[0017] Figure 4 The utility model provides a partially exploded structural diagram of a fixture for electrospark machining;

[0018] Figure 5The utility model provides an enlarged structural diagram of point A of a fixture for electrospark machining.

[0019] Legend: 1. Clamp assembly; 101. Fixed splint; 102. Movable splint; 103. Adjusting bolt; 104. Slider; 105. Fixed plate; 2. Clamping pad assembly; 201. Clamping pad; 202. Friction strip; 203. Mounting block; 204. Mounting slot; 205. Fixed bracket; 206. Limiting slot; 207. Pull rod; 208. Spring; 209. Mounting bracket; 3. Adjusting assembly; 301. Right-angle bracket; 302. Tension adjusting bolt; 303. Support block; 304. Docking adjusting bolt; 305. Support plate; 306. Mounting column. DETAILED DESCRIPTION

[0020] In order to more clearly understand the above-mentioned purpose, features and advantages of the present invention, the present invention is further described below with reference to the accompanying drawings and embodiments. It should be noted that the embodiments of the present application and the features therein can be combined with each other without conflict.

[0021] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways than those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0022] Example 1: Figure 1-Figure 5 As shown, the utility model provides a technical solution: a fixture for electrospark machining, including a fixture assembly 1, a clamping pad assembly 2 is provided on the side of the fixture assembly 1, an adjustment assembly 3 is provided on the bottom of the fixture assembly 1, the fixture assembly 1 includes a fixed clamping plate 101 and a movable clamping plate 102, the clamping pad assembly 2 includes two clamping pads 201, the sides of the clamping pads 201 are symmetrically installed with mounting blocks 203, the sides of the clamping pads 201 are distributed with multiple friction strips 202, the sides of the fixed clamping plate 101 and the movable clamping plate 102 are opened with mounting grooves 204, the mounting blocks 203 are slidably installed inside the mounting grooves 204, Limiting grooves 206 are symmetrically provided on both sides of the clamping pad 201, and a fixing frame 205 is installed inside the limiting groove 206. A pull rod 207 is installed on the side of the fixing frame 205. A spring 208 is provided on the outside of the pull rod 207, and a mounting frame 209 is installed on the outside of the pull rod 207. One end of the spring 208 is connected to the side of the fixing frame 205. Adjusting bolts 103 are passed through the inside of the fixed splint 101 and the movable splint 102. A slider 104 is installed at the bottom of the fixed splint 101. One end of the slider 104 passes through the inside of the movable splint 102, and a fixed plate 105 is installed at the bottom of the slider 104.

[0023] The movable clamping plate 102 is moved by pulling the adjusting bolt 103, so that the workpiece is fixed between the fixed clamping plate 101 and the movable clamping plate 102, and then the adjusting bolt 103 is rotated so that the fixed clamping plate 101 and the movable clamping plate 102 clamp and fix the workpiece, ensuring the stability and reliability of the workpiece. The mounting block 203 is slidably mounted on the inside of the mounting groove 204, which facilitates the installation of the clamping pad 201 on the side of the fixed clamping plate 101 and the movable clamping plate 102. The clamping pad 201 cooperates with the friction strip 202 to prevent the fixed clamping plate 101 and the movable clamping plate 102 from directly contacting the surface of the workpiece, thereby effectively avoiding scratches on the workpiece surface during the clamping process, reducing indentations caused by pressure concentration, ensuring the integrity of the workpiece surface, and reducing the fixed clamping plate 101 and the movable clamping plate The wear of plate 102 extends the service life of fixed splint 101 and movable splint 102, and reduces the maintenance and replacement cost of fixed splint 101 and movable splint 102. The clamping pad 201 and friction strip 202 are beneficial to filling the small gap between the workpiece and the fixed splint 101 and movable splint 102, thereby improving the stability of clamping the workpiece and ensuring that the workpiece will not be displaced during the processing, thereby improving the processing accuracy. By pulling the pull rod 207 outward, the spring 208 is compressed, thereby prompting the fixed frame 205 to disengage from the inside of the limiting groove 206, loosening the pull rod 207, allowing the spring 208 to extend, thereby prompting the fixed frame 205 to be clamped inside the limiting groove 206, which is beneficial to limiting the clamping pad 201, facilitating the maintenance and replacement of the clamping pad 201, and improving the convenience of operation.

[0024] Example 2: Figure 1-Figure 5 As shown, the adjustment component 3 includes a right-angle frame 301, a tension adjustment bolt 302 passes through the top of the right-angle frame 301, a docking adjustment bolt 304 passes through one end of the right-angle frame 301, a support block 303 is symmetrically installed on the outside of the docking adjustment bolt 304, a support plate 305 is installed at the bottom of the support block 303, and a mounting column 306 is installed at the bottom of the support plate 305.

[0025] In this embodiment, by using a wrench to rotate the tension adjustment bolt 302, it is convenient to loosen the slider 104 to achieve flip rotation, and at the same time, the wrench is used to rotate the docking adjustment bolt 304 to loosen the right-angle frame 301, which is convenient for driving the right-angle frame 301 to rotate and adjust the angle, which is beneficial for multi-directional adjustment of the angle of the fixed splint 101 and the movable splint 102, and is beneficial for accurately adjusting the angle of the workpiece according to different processing requirements to achieve the best processing effect. After the adjustment is completed, the tension adjustment bolt 302 and the docking adjustment bolt 304 are tightened, and then tightened, thereby improving the processing accuracy and thus improving the processing quality.

[0026] The working principle of this embodiment is as follows: when in use, first pull the adjusting bolt 103 to drive the movable splint 102 to move, so that the workpiece is fixed between the fixed splint 101 and the movable splint 102, and then rotate the adjusting bolt 103 to clamp the workpiece with the fixed splint 101 and the movable splint 102, and then use a wrench to rotate the tension adjustment bolt 302, which is convenient for loosening the slider 104 to achieve flip rotation, and at the same time use the wrench to rotate the docking adjustment bolt 304 to loosen the right-angle frame 301, which is convenient for driving the right-angle frame 301 to rotate and adjust the angle, which is conducive to multi-directional adjustment of the angle of the fixed splint 101 and the movable splint 102. By pulling the pull rod outward 207, so that the spring 208 is compressed, thereby prompting the fixed frame 205 to disengage from the inside of the limiting groove 206, and then the mounting block 203 is slid into the inside of the mounting groove 204, which is convenient for installing the clamping pad 201 on the side of the fixed clamping plate 101 and the movable clamping plate 102, and then the pull rod 207 is loosened, so that the spring 208 extends, thereby prompting the fixed frame 205 to be clamped into the inside of the limiting groove 206, which is beneficial for limiting the clamping pad 201 and facilitating the maintenance and replacement of the clamping pad 201. The clamping pad 201 cooperates with the friction strip 202 to prevent the fixed clamping plate 101 and the movable clamping plate 102 from directly contacting the surface of the workpiece, thereby effectively avoiding scratches on the workpiece surface during the clamping process.

[0027] The above are only preferred embodiments of the present invention and are not intended to limit the present invention in any other form. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes and apply it to other fields. However, any simple modification, equivalent change and modification of the above embodiment made according to the technical essence of the present invention without departing from the content of the technical solution of the present invention shall still fall within the scope of protection of the technical solution of the present invention.

Claims

1. A fixture for electrospark machining, comprising a fixture assembly (1), characterized in that: A clamping pad assembly (2) is provided on the side of the clamp assembly (1), and an adjustment assembly (3) is provided on the bottom of the clamp assembly (1). The clamp assembly (1) includes a fixed clamping plate (101) and a movable clamping plate (102). The clamping pad assembly (2) includes two clamping pads (201). The sides of the clamping pads (201) are symmetrically provided with mounting blocks (203). The sides of the clamping pads (201) are provided with multiple friction strips (202). The sides of the fixed clamping plate (101) and the movable clamping plate (102) are provided with mounting grooves (204). The mounting blocks (203) are slidably mounted inside the mounting grooves (204). Limiting grooves (206) are symmetrically provided on both sides of the clamping pad (201), and a fixing frame (205) is installed inside the limiting grooves (206).

2. The fixture for electric discharge machining according to claim 1, characterized in that: The adjustment assembly (3) comprises a right-angle frame (301), a tension adjustment bolt (302) is passed through the top of the right-angle frame (301), and a docking adjustment bolt (304) is passed through one end of the right-angle frame (301).

3. The fixture for electric discharge machining according to claim 1, characterized in that: A pull rod (207) is installed on the side of the fixing frame (205), and a spring (208) is provided on the outside of the pull rod (207).

4. The fixture for electric discharge machining according to claim 3, characterized in that: A mounting bracket (209) is installed on the outer side of the pull rod (207), and one end of the spring (208) is connected to the side surface of the fixing bracket (205).

5. The fixture for electric discharge machining according to claim 2, characterized in that: A support block (303) is symmetrically mounted on the outer side of the docking adjustment bolt (304), a support plate (305) is mounted on the bottom of the support block (303), and a mounting column (306) is mounted on the bottom of the support plate (305).

6. The fixture for electric discharge machining according to claim 1, characterized in that: An adjusting bolt (103) is passed through the interior of the fixed splint (101) and the movable splint (102); a slider (104) is installed at the bottom of the fixed splint (101); one end of the slider (104) passes through the interior of the movable splint (102); and a fixed plate (105) is installed at the bottom of the slider (104).

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