Electric spark discharge machining clamp
By designing a clamp with adjustable clamping plates and fixing bolts, the problem of existing clamps being unable to securely clamp cylindrical workpieces has been solved, achieving secure clamping of cylindrical workpieces and adaptable fixing of square workpieces.
Patent Information
- Application Number
- CN202421529064.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-01
- Publication Date
- 2025-11-04
- Estimated Expiration
- 2034-07-01
AI Technical Summary
Existing electrical discharge machining fixtures can only fix square workpieces, and cannot stably clamp cylindrical workpieces, making them prone to slippage.
A fixture comprising a fixed base, a fixed clamping plate, and an adjustable clamping plate is designed. By adjusting the angle of the adjustable clamping plate and fixing it with fixing bolts, a stable clamping of a cylindrical workpiece is achieved.
It achieves stable clamping of cylindrical workpieces, prevents slippage, and the clamp is adjustable to adapt to the fixing requirements of workpieces of different shapes.
Smart Images
Figure CN223506350U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of machining technology, specifically to an electrical discharge machining fixture. Background Technology
[0002] Electrical discharge machining (EDM) is primarily used for workpieces that cannot be machined by other methods in machining centers. The machining locations are typically narrow and deep areas such as ribs and pillars, and high precision is required. During EDM, the workpiece is fixed in a corresponding fixture, and then the fixture and workpiece are mounted on the EDM machine. Electrodes of a specific shape contact the workpiece to discharge electricity and machine it. Currently, EDM fixtures typically only hold and fix square workpieces. When fixing cylindrical workpieces, the fixture only has two parallel surfaces for clamping, resulting in unstable fixation and a tendency to slip. Utility Model Content
[0003] In order to overcome the problems existing in the background technology, this utility model provides an electrical discharge machining fixture to solve the technical problem mentioned in the background technology that current electrical discharge machining fixtures can usually only clamp and fix square workpieces. When fixing cylindrical workpieces, the fixture only has two parallel surfaces for clamping and fixing, resulting in unstable fixing and easy slippage.
[0004] To achieve the above objectives, this utility model is implemented through the following technical solution:
[0005] An electrical discharge machining fixture includes a fixed base 1, a fixing component 2, a fixed clamping plate 3, and an adjustable clamping plate 4. The fixed base 1 has a fixing component 2 installed at its bottom for mounting the fixture on an EDM machine. The fixed clamping plate 3 is located on one side of the top of the fixed base 1, and the adjustable clamping plate 4 is installed on the other side of the top of the fixed base 1. The workpiece to be processed is installed between the fixed clamping plate 3 and the adjustable clamping plate 4. The adjustable clamping plate 4 is composed of two fixed plates 41 hinged at their ends. The fixed clamping plate 3 is equipped with fixing bolts 5 for locking the workpiece.
[0006] Preferably, one end of each of the two fixing plates 41 is hinged to the rotating shaft 42, and the other end is slidably mounted on the top of the fixing seat 1. The bottom of the rotating shaft 42 is threaded onto the adjusting screw 6 mounted on the side wall of the fixing seat 1, and the end of the adjusting screw 6 is rotatably mounted in the groove 7 opened in the side wall of the fixing seat 1.
[0007] Preferably, the other end of the fixing plate 41 is rotatably connected to the slider 10, which is slidably mounted in the slide groove 9 on the top of the fixing base 1, via a pin 8, and the pin 8 is mounted on the slider 10.
[0008] Preferably, the end of the adjusting screw 6 is provided with a knob 12 for easy rotation.
[0009] The beneficial effects of this utility model are as follows: This utility model can clamp both square and cylindrical workpieces using an adjustable clamping plate. When clamping a cylindrical workpiece, the angle of the two fixing plates of the adjustable clamping plate is adjusted so that the side wall of the cylindrical workpiece is supported on the two fixing plates, and then fixed with fixing bolts. Because the position of supporting the side wall of the cylindrical workpiece is increased, the cylindrical workpiece is more stable when fixed, preventing movement. Moreover, the clamp can be adjusted, so it is convenient to fix both square and cylindrical workpieces. Attached Figure Description
[0010] Figure 1 This is a three-dimensional structural diagram of the present invention.
[0011] Figure 2 This is a schematic diagram of the adjustable clamping plate.
[0012] Figure 3 This is a schematic diagram of the installation structure of the fixing plate. Detailed Implementation
[0013] To make the objectives, technical solutions, and beneficial effects of this utility model clearer, the preferred embodiments of this utility model will be described in detail below with reference to the accompanying drawings, so as to facilitate the understanding of those skilled in the art.
[0014] like Figure 1-3As shown, this utility model provides an electrical discharge machining fixture, including a fixed base 1, a fixed component 2, a fixed clamping plate 3, and an adjustable clamping plate 4; the fixed base 1 has a fixed component 2 installed at its bottom for mounting the fixture on an EDM machine, the fixed clamping plate 3 is located on one side of the top of the fixed base 1, and the adjustable clamping plate 4 is installed on the other side of the top of the fixed base 1, with the workpiece to be processed installed between the fixed clamping plate 3 and the adjustable clamping plate 4; the adjustable clamping plate 4 is composed of two fixed plates 41 hinged at their ends, and the fixed clamping plate 3 is equipped with fixing bolts 5 for locking the workpiece. When fixing a square workpiece, the fixture adjusts the two fixing plates 41 of the adjustable clamping plate 4 so that the side walls of the two fixing plates 41 are on the same plane. Then, the workpiece is placed on the fixing seat 1 between the fixed clamping plate 3 and the adjustable clamping plate 4. Then, the fixing bolt 5 is rotated to press against the side wall of the workpiece, thereby fixing the workpiece. When fixing a cylindrical workpiece, the fixture adjusts the two fixing plates 41 of the adjustable clamping plate 4. According to the diameter of the cylindrical workpiece, the two fixing plates 41 are rotated at the hinge to form a certain angle. Then, the cylindrical workpiece is clamped between the two fixing plates 41 with a certain angle. Then, the fixing bolt 5 is pressed against the cylindrical workpiece, thereby fixing the workpiece. Because the workpiece is supported by the two fixing plates 41, the position of the support for the side wall of the cylindrical workpiece is increased, so that the cylindrical workpiece is more stable when fixed and prevents movement. Moreover, the fixture can be adjusted, so that it can fix both square and cylindrical workpieces.
[0015] Two fixing plates 41 are hinged at one end to a rotating shaft 42, and slidably mounted on the top of a fixing base 1 at the other end. The bottom of the rotating shaft 42 is threaded onto an adjusting screw 6 mounted on the side wall of the fixing base 1. The end of the adjusting screw 6 is rotatably mounted in a groove 7 opened in the side wall of the fixing base 1. When adjusting the fixing plates 41, the rotating shaft 42 moves along the adjusting screw 6 by rotating it. This pushes the two fixing plates 41 to rotate along the rotating shaft 42, thereby adjusting the angle of the two fixing plates 41. The other end of the fixing plates 41 slides on the fixing base 1, thus not affecting the rotation of the fixing plates 41. This facilitates the adjustment of the angle between the two fixing plates 41 according to the diameter of the cylindrical workpiece, making it easier to fix the cylindrical workpiece.
[0016] The other end of the fixed plate 41 is rotatably connected to the slider 10, which is slidably mounted in the slide groove 9 on the top of the fixed base 1, via a pin 8. The pin 8 is mounted on the slider 10. When the rotating shaft 42 moves on the adjusting screw 6, it pulls the hinged end of the fixed plate 41 to move, changing the angle of the fixed plate 41. This causes the other end of the fixed plate 41 to slide along the slider 10 and rotate along the pin 8, thus not affecting the movement of the fixed plate 41.
[0017] The adjusting screw 6 is equipped with a knob 12 at its end for easy rotation. The adjusting screw 6 can be rotated more conveniently and effortlessly using the knob 12.
[0018] Work process:
[0019] When fixing a square workpiece, the fixture moves the rotating shaft 42 along the adjusting screw 6. This pushes the two fixing plates 41 to rotate along the rotating shaft 42, thereby adjusting the angle of the two fixing plates 41 so that the side walls of the two fixing plates 41 are in the same plane. Then, the workpiece is placed on the fixing seat 1 between the fixed clamping plate 3 and the adjustable clamping plate 4, and then the fixing bolt 5 is rotated to press against the side wall of the workpiece, thereby fixing the workpiece. When fixing a cylindrical workpiece, the fixture moves the rotating shaft 42 along the adjusting screw 6. The two fixed plates 41 are pushed to rotate along the rotating shaft 42, thereby adjusting the angle of the two fixed plates 41. According to the diameter of the cylindrical workpiece, the two fixed plates 41 are rotated to form a certain angle through the hinge. Then, the cylindrical workpiece is clamped between the two fixed plates 41 with a certain angle, and then pressed onto the cylindrical workpiece by the fixing bolt 5, thereby fixing the workpiece. Since the workpiece is supported by the two fixed plates 41, the position of the support for the side wall of the cylindrical workpiece is increased, so that the cylindrical workpiece is more stable when fixed and prevents movement. Moreover, the fixture can be adjusted, so that it can fix both square workpieces and cylindrical workpieces.
[0020] Finally, it should be noted that the above preferred embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although the utility model has been described in detail through the above preferred embodiments, those skilled in the art should understand that various changes can be made to it in form and detail without departing from the scope defined by the claims of this utility model.
Claims
1. An electrical discharge machining fixture, characterized in that: It includes a fixed base (1), a fixed component (2), a fixed clamping plate (3), and an adjustable clamping plate (4); the fixed base (1) is equipped with a fixed component (2) for mounting the fixture on the EDM machine at its bottom, the fixed clamping plate (3) is located on one side of the top of the fixed base (1), and the adjustable clamping plate (4) is installed on the other side of the top of the fixed base (1). The workpiece to be processed is installed between the fixed clamping plate (3) and the adjustable clamping plate (4); the adjustable clamping plate (4) is composed of two fixed plates (41) with hinged ends, and the fixed clamping plate (3) is equipped with a fixing bolt (5) for locking the workpiece.
2. The electrical discharge machining fixture according to claim 1, characterized in that: One end of the two fixed plates (41) is hinged to the rotating shaft (42), and the other end is slidably mounted on the top of the fixed seat (1). The bottom of the rotating shaft (42) is threaded onto the adjusting screw (6) mounted on the side wall of the fixed seat (1), and the end of the adjusting screw (6) is rotatably mounted in the groove (7) opened on the side wall of the fixed seat (1).
3. The electrical discharge machining fixture according to claim 2, characterized in that: The other end of the fixed plate (41) is rotatably connected to the slider (10) which is slidably installed in the slide groove (9) on the top of the fixed seat (1) via a pin (8). The pin (8) is installed on the slider (10).
4. An electrical discharge machining fixture according to claim 2 or 3, characterized in that: The end of the adjusting screw (6) is provided with a knob (12) for easy rotation.