Electrode clamp structure for electric spark machining

Abstract

The utility model discloses an electric spark machining electrode clamp structure. The electric spark machining electrode clamp structure comprises a clamp main body rod, a main body rod connecting block, a clamp lengthening rod, a lengthening rod connecting block, a clamp electrode rod and an electrode rod clamping block. The main body rod connecting block is provided with a through lengthening rod penetrating hole. The clamp lengthening rod penetrates through the lengthening rod penetrating hole, and the clamp lengthening rod and the lengthening rod penetrating hole are matched through a shaft hole. The clamp extension rod moves in the axis direction of the extension rod penetrating hole and rotates along the axis of the extension rod penetrating hole. The electrode stem clamping block has the advantages that the electrode stem clamping block has the moving freedom degree and the rotating freedom degree, and multi-direction positioning machining can be achieved.

Description

Technical Field

[0001] The utility model relates to electrical discharge machining, and particularly to a structure of an electrode fixture for electrical discharge machining. Background Art

[0002] Electrical discharge machining (EDM) uses a continuously moving electrode to perform pulsed spark discharge on a workpiece to erode metal and cut into shape, and is used for machining various workpieces with complex shapes and precision and small sizes. An electrode fixture for electrical discharge machining is installed on an electrical discharge machining machine tool and is used to fix the electrode during the electrical discharge machining process. Currently, the existing electrode fixtures for electrical discharge machining include: two opposite jaws. The setting directions of the two jaws are fixed and cannot be adjusted, that is, multi-directional positioning machining cannot be achieved. Summary of the Utility Model

[0003] The purpose of the utility model is to solve the problem that the direction of the existing electrode fixture for electrical discharge machining cannot be adjusted, and to provide a new structure of an electrode fixture for electrical discharge machining.

[0004] To achieve the above object, the technical solution of the present utility model is as follows: An electrode fixture structure for electric discharge machining, comprising: a fixture main body rod, a main body rod connecting block, a fixture extension rod, an extension rod connecting block, a fixture electrode rod, and an electrode rod clamping block; the fixture main body rod extends along the vertical direction, the fixture main body rod has a relative main body rod first end and a main body rod second end, the main body rod first end of the fixture main body rod is fixed, and the main body rod second end of the fixture main body rod is fixedly connected to the main body rod connecting block; the main body rod connecting block has a through hole for the extension rod, the axial direction of the through hole for the extension rod is perpendicular to the axial direction of the fixture main body rod, the fixture extension rod passes through the through hole for the extension rod and the two are in shaft-hole fit, and the fixture extension rod displaces along the axial direction of the through hole for the extension rod and rotates along the axial direction of the through hole for the extension rod; the fixture extension rod has a relative extension rod first end and an extension rod second end, the extension rod second end of the fixture extension rod is fixedly connected to the extension rod connecting block, the extension rod connecting block has a through hole for the electrode rod, the axial direction of the through hole for the electrode rod is perpendicular to the axial direction of the fixture extension rod, the fixture electrode rod passes through the through hole for the electrode rod and the two are in shaft-hole fit, the fixture electrode rod displaces along the axial direction of the through hole for the electrode rod and rotates along the axial direction of the through hole for the electrode rod, the fixture electrode rod has a relative electrode rod first end and an electrode rod second end, the electrode rod second end of the fixture electrode rod is fixedly connected to the electrode rod clamping block, and the electrode rod clamping block is used for clamping the electrode. The beneficial effects are at least as follows: Since the fixture extension rod and the through hole for the extension rod are in shaft-hole fit and the fixture electrode rod and the through hole for the electrode rod are in shaft-hole fit, the electrode rod clamping block has degrees of freedom of movement (the axial directions of the through hole for the extension rod and the through hole for the electrode rod) and degrees of freedom of rotation (rotating along the axial direction of the through hole for the extension rod and rotating along the axial direction of the through hole for the electrode rod), and multi-directional positioning machining can be achieved. Also, since the fixture extension rod displaces along the axial direction of the through hole for the extension rod, the machining stroke (the axial directions of the through hole for the extension rod and the through hole for the electrode rod) can be increased.

[0005] As a preferred solution of the electrode fixture structure for electric discharge machining, the electrode rod clamping block has a fixed inverted L-shaped plate and a movable inverted L-shaped plate, and the vertical part of the movable inverted L-shaped plate moves towards or away from the vertical part of the fixed inverted L-shaped plate. The beneficial effects are at least as follows: The distance between the vertical part of the movable inverted L-shaped plate and the vertical part of the fixed inverted L-shaped plate is adjustable, so that electrodes of different sizes and specifications can be clamped.

[0006] As a preferred solution for the structure of the electrode fixture in electrical discharge machining, the horizontal part of the fixed inverted L-shaped plate is fixedly connected to the second end of the electrode rod of the fixture electrode rod, and the vertical part of the fixed inverted L-shaped plate is movably connected to the vertical part of the movable inverted L-shaped plate by bolts and nuts.

[0007] As a preferred solution for the structure of the electrode fixture in electrical discharge machining, the horizontal part of the movable inverted L-shaped plate has a sliding groove, and the vertical part of the fixed inverted L-shaped plate is inside the sliding groove. The beneficial effect is at least that: the purpose is to ensure that the movable inverted L-shaped plate can move smoothly.

[0008] As a preferred solution for the structure of the electrode fixture in electrical discharge machining, the first end of the extension rod of the fixture extension rod has an extension rod shoulder. The beneficial effect is at least that: the extension rod shoulder is used to prevent the fixture extension rod from leaving the extension rod through hole.

[0009] As a preferred solution for the structure of the electrode fixture in electrical discharge machining, the first end of the electrode rod of the fixture electrode rod has an electrode rod shoulder. The beneficial effect is at least that: the electrode rod shoulder is used to prevent the fixture electrode rod from leaving the electrode rod through hole.

[0010] As a preferred solution for the structure of the electrode fixture in electrical discharge machining, the main body rod connecting block has an extension rod locking piece. The beneficial effect is at least that: when the fixture extension rod is displaced to a specified position and / or a specified angle, the extension rod locking piece locks the fixture extension rod to prevent it from continuing to displace and / or rotate.

[0011] As a preferred solution for the structure of the electrode fixture in electrical discharge machining, the extension rod connecting block has an electrode rod locking piece. The beneficial effect is at least that: when the fixture electrode rod is displaced to a specified position and / or a specified angle, the electrode rod locking piece locks the fixture electrode rod to prevent it from continuing to displace and / or rotate.

[0012] In addition to the technical problems solved by the present invention, the technical features constituting the technical solutions, and the beneficial effects brought by these technical features of the technical solutions described above, other technical problems that the present invention can solve, other technical features included in the technical solutions, and the beneficial effects brought by these technical features will be further described in detail in conjunction with the accompanying drawings. Description of the Drawings

[0013] Figure 1 It is a schematic structural diagram (combined state) of an embodiment of the structure of the electrode fixture for electrical discharge machining of the present invention.

[0014] Figure 2 It is a schematic structural diagram (disassembled state) of an embodiment of the structure of the electrode fixture for electrical discharge machining of the present invention.

[0015] Figure 3 This is a schematic structural diagram of an embodiment of the structure of the electric discharge machining electrode fixture of the present utility model (in the combined state, after adjusting the main rod connecting block).

[0016] Figure 4 This is a schematic structural diagram of an embodiment of the structure of the electric discharge machining electrode fixture of the present utility model (in the combined state, after adjusting the fixture electrode rod).

[0017] Figure 5 This is a schematic structural diagram of an embodiment of the structure of the electric discharge machining electrode fixture of the present utility model (in the combined state, after adjusting the electrode rod clamping block). Specific embodiments

[0018] The present utility model will be further described in detail below in conjunction with the accompanying drawings through specific embodiments. It should be noted here that the description of these embodiments is used to help understand the present utility model, but does not constitute a limitation to the present utility model. In addition, the technical features involved in the various embodiments of the present utility model described below can be combined with each other as long as they do not conflict with each other.

[0019] See Figures 1 to 2 , what is shown in the figure is a structure of an electric discharge machining electrode fixture. The electric discharge machining electrode fixture structure is installed on an electric discharge machining machine tool and is used for clamping an electrode in the electric discharge machining step. The electric discharge machining electrode fixture structure includes: a fixture main rod 1, a main rod connecting block 2, a fixture extension rod 3, an extension rod connecting block 4, a fixture electrode rod 5, an electrode rod clamping block 6, etc.

[0020] The fixture main rod 1 extends along the vertical direction. The fixture main rod 1 has a main rod first end and a main rod second end that are opposite to each other. The main rod first end of the fixture main rod 1 is fixed. The main rod second end of the fixture main rod 1 is fixedly connected to the main rod connecting block 2.

[0021] In specific implementation, the main rod first end of the fixture main rod 1 is the upper end, and the main rod second end of the fixture main rod 1 is the lower end.

[0022] In specific implementation, the main rod first end of the fixture main rod 1 is fixed by the chuck of the electric discharge machining machine tool.

[0023] In specific implementation, the main rod second end of the fixture main rod 1 and the main rod connecting block 2 are of an integral structure.

[0024] The main rod connecting block 2 has a through hole 20 for the extension rod to pass through. The axial direction of the through hole 20 for the extension rod to pass through is perpendicular to the axial direction of the fixture main rod 1.

[0025] The fixture extension rod 3 passes through the extension rod through-hole 20. The fixture extension rod 3 is in shaft-hole fit with the extension rod through-hole 20. The fixture extension rod 3 is displaced along the axial direction of the extension rod through-hole 20 (see Figure 1 and Figure 3 , Figure 1 wherein the main rod connection block 2 is away from the extension rod connection block 4, Figure 3 and

[0026] wherein the main rod connection block 2 is close to the extension rod connection block 4) and rotates about the axis of the extension rod through-hole 20.

[0027] Preferably, the main rod connection block 2 has an extension rod locking member 7. When the fixture extension rod 3 is displaced to a specified position and / or a specified angle, the extension rod locking member 7 locks the fixture extension rod 3 to prevent it from further displacement and / or rotation.

[0028] Specifically, when implemented, the extension rod locking member 7 is a locking screw. The extension rod locking member 7 passes through the main rod connection block 2 and extends along the radial direction of the fixture extension rod 3. The extension rod locking member 7 abuts against the fixture extension rod 3, and the fixture extension rod 3 is locked.

[0029] The fixture electrode rod 5 passes through the electrode rod through-hole 40. The fixture electrode rod 5 is in shaft-hole fit with the electrode rod through-hole 40. The fixture electrode rod 5 is displaced along the axial direction of the electrode rod through-hole 40 and rotates about the axis of the electrode rod through-hole 40 (see

[0030] and Figure 1 and Figure 4 , Figure 1 wherein the fixture electrode rod 5 is vertical, Figure 4 and

[0031] wherein the fixture electrode rod 5 is inclined).

[0032] In specific implementation, the electrode rod locking member 8 is a locking screw. The electrode rod locking member 8 passes through the extension rod connecting block 4 and extends along the radial direction of the fixture electrode rod 5. The electrode rod locking member 8 abuts against the fixture electrode rod 5, and the fixture electrode rod 5 is locked.

[0033] The fixture electrode rod 5 has an opposite electrode rod first end and electrode rod second end. The electrode rod first end of the fixture electrode rod 5 has an electrode rod shoulder 50. The electrode rod shoulder 50 is used to prevent the fixture electrode rod 5 from leaving the electrode rod through hole 40. The electrode rod second end of the fixture electrode rod 5 is fixedly connected to the electrode clamping block 6. The electrode clamping block 6 is used to clamp the electrode.

[0034] In specific implementation, the electrode clamping block 6 has a fixed inverted L-shaped plate 61 and a movable inverted L-shaped plate 62. The horizontal portion of the fixed inverted L-shaped plate 61 is fixedly connected to the electrode rod second end of the fixture electrode rod 5. The vertical portion of the fixed inverted L-shaped plate 61 is opposite to the vertical portion of the movable inverted L-shaped plate 62. The vertical portion of the fixed inverted L-shaped plate 61 and the vertical portion of the movable inverted L-shaped plate 62 are movably connected by a bolt and nut 63. That is, the vertical portion of the movable inverted L-shaped plate 62 can move towards or away from the vertical portion of the fixed inverted L-shaped plate 61 to adjust the distance between the two (see Figure 1 and Figure 5 , Figure 1 wherein the vertical portion of the fixed inverted L-shaped plate 61 and the vertical portion of the movable inverted L-shaped plate 62 are at a small distance, Figure 5 wherein the vertical portion of the fixed inverted L-shaped plate 61 and the vertical portion of the movable inverted L-shaped plate 62 are at a large distance), the purpose is to adapt to electrodes of different sizes and specifications. Preferably, the horizontal portion of the movable inverted L-shaped plate 62 has a chute 64. The vertical portion of the fixed inverted L-shaped plate 61 is inside the chute 64. The purpose is to ensure that the movable inverted L-shaped plate 62 can move smoothly.

[0035] The above only expresses the implementation modes of the present utility model, and its description is relatively specific and detailed, but it cannot be understood as a limitation to the scope of the utility model patent. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present utility model, several deformations and improvements can still be made, and these all belong to the protection scope of the present utility model. Therefore, the protection scope of the present utility model patent shall be subject to the appended claims.

Claims

1. An electrode fixture structure for electric discharge machining, characterized in that, Including: A fixture main body rod, a main body rod connecting block, a fixture extension rod, an extension rod connecting block, a fixture electrode rod, and an electrode rod clamping block; the fixture main body rod extends along the vertical direction, the fixture main body rod has a relative main rod first end and a main rod second end, the main rod first end of the fixture main body rod is fixed, and the main rod second end of the fixture main body rod is fixedly connected to the main body rod connecting block; the main body rod connecting block has a through hole for the extension rod, the axial direction of the through hole for the extension rod is perpendicular to the axial direction of the fixture main body rod, the fixture extension rod passes through the through hole for the extension rod and the two are in shaft-hole fit, the fixture extension rod displaces along the axial direction of the through hole for the extension rod and rotates around the axis of the through hole for the extension rod; the fixture extension rod has a relative extension rod first end and an extension rod second end, the extension rod second end of the fixture extension rod is fixedly connected to the extension rod connecting block, the extension rod connecting block has a through hole for the electrode rod, the axial direction of the through hole for the electrode rod is perpendicular to the axial direction of the fixture extension rod, the fixture electrode rod passes through the through hole for the electrode rod and the two are in shaft-hole fit, the fixture electrode rod displaces along the axial direction of the through hole for the electrode rod and rotates around the axis of the through hole for the electrode rod, the fixture electrode rod has a relative electrode rod first end and an electrode rod second end, the electrode rod second end of the fixture electrode rod is fixedly connected to the electrode rod clamping block, and the electrode rod clamping block is used for clamping the electrode.

2. The structure of the electric discharge machining electrode fixture according to claim 1, wherein The electrode rod clamping block has a fixed inverted L-shaped plate and a movable inverted L-shaped plate, and the vertical part of the movable inverted L-shaped plate moves towards or away from the vertical part of the fixed inverted L-shaped plate.

3. The structure of the EDM electrode fixture according to claim 2, characterized in that, The horizontal part of the fixed inverted L-shaped plate is fixedly connected to the electrode rod second end of the fixture electrode rod, and the vertical part of the fixed inverted L-shaped plate is movably connected to the vertical part of the movable inverted L-shaped plate by bolts and nuts.

4. The structure of the electric discharge machining electrode fixture according to claim 3, characterized in that, The horizontal part of the movable inverted L-shaped plate has a sliding groove, and the vertical part of the fixed inverted L-shaped plate is inside the sliding groove.

5. The structure of the electric discharge machining electrode fixture according to claim 1, characterized in that, The extension rod first end of the fixture extension rod has an extension rod shoulder.

6. The structure of the EDM electrode fixture according to claim 1, wherein The electrode rod first end of the fixture electrode rod has an electrode rod shoulder.

7. The structure of the EDM electrode fixture according to claim 1, characterized in that, The main body rod connecting block has an extension rod locking piece.

8. The structure of the EDM electrode fixture according to claim 1, wherein, The extension rod connecting block has an electrode rod locking piece.

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