Clamp assembly with adjustable spatial position
By designing the swing and rotation device in the component, the diversity of the tool electrode inclined in the electro -spark processing is solved, and arbitrarily tilted adjustment of the tool electrode, which improves production efficiency and saves production materials.
Patent Information
- Application Number
- CN202420675355.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-03
- Publication Date
- 2025-01-28
- Estimated Expiration
- 2034-04-03
AI Technical Summary
In electric spark processing, the inclination demand of tool electrodes relative to the workpiece cannot be effectively met, resulting in different inclination directions or angles requiring different fixtures to fix the workpiece, resulting in waste of production materials and inefficient production efficiency.
Design a fixture component that can be adjusted in space, including fixture and adjustment components. The adjustment component includes a swinging device and a rotating device. The tilt angle and direction of the electrode of the tool electrode by swinging modules and rotating modules can enable the tool electrodes to be in any tilt direction.
The adjustment of the tool electrodes in the process of arbitrarily tilted the direction of the tool electrode, meets the processing needs of different shapes and structures, improves production efficiency and saves production materials.
Smart Images
Figure CN222403840U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to electric spark machining equipment, in particular to a clamp for a tool electrode. Background Art
[0002] The basic working principle of electrical discharge machining (EDM) is to use a continuously moving thin metal wire (electrode wire) as an electrode to perform pulsed spark discharge to remove metal and cut the workpiece. It is mainly used to process various complex and fine workpieces, with the advantages of small machining allowance, high machining accuracy, short production cycle and low manufacturing cost.
[0003] EDM is generally divided into three stages. In the first stage, a discharge channel is formed, during which the electrolyte is ionized, broken down, and a discharge channel is formed. In the second stage, energy conversion is formed on the workpiece surface, that is, spark discharge and thermal expansion are generated, causing the tool electrode and the workpiece to be eroded. In the third stage, the eroded material is thrown out of the discharge gap to prepare for the next discharge.
[0004] The tool electrode and the workpiece can perform relative three-dimensional movement, including horizontal longitudinal movement, horizontal lateral movement and lifting movement, so that the tool electrode acts on the workpiece to form the desired product shape and structure. In actual operation, there is a need for the tool electrode to be tilted relative to the workpiece. This tilt may be in any direction, for example, tilting in the front-to-back direction, or tilting in the left-to-right direction. In order to meet this tilting requirement, the fixture used to fix the workpiece needs to tilt and fix the workpiece. In this way, different tilting directions or tilting angles require different fixtures to fix the corresponding workpiece, which is not conducive to saving production materials or improving production efficiency. Utility Model Content
[0005] The technical problem solved by the utility model is as follows: In electrospark machining, there is a need to tilt the tool electrode relative to the workpiece. Different tilt directions or tilt angles require different fixtures to fix the corresponding workpiece, which is not conducive to saving production materials and improving production efficiency.
[0006] In order to solve the above technical problems, the utility model provides the following technical solutions: a clamp assembly with adjustable spatial position, comprising a clamp and an adjustment assembly, the adjustment assembly comprising a swing device and a rotation device, the swing device comprising a swing module and a swing bracket, the rotation device comprising a rotation module and a rotation bracket, the clamp is connected to the swing module, the swing module is pivotally connected to the swing bracket, the swing bracket is connected to the rotation module, the rotation module is pivotally connected to the rotation bracket, the rotation axis of the rotation module is vertically arranged, and the axis centerline of the swing module is perpendicular to the rotation axis.
[0007] According to the above technical solution, the fixture clamps the tool electrode, and the swing module swings relative to the swing bracket, driving the fixture and the tool electrode to swing synchronously, so that the tool electrode is tilted and the tilt angle of the tool electrode is adjusted. The rotating module rotates relative to the rotating bracket, driving the fixture and the tool electrode to rotate 360 degrees, adjusting the tilt direction of the tool electrode, and the tool electrode can be in any tilt direction. The rotating bracket is installed on the three-dimensional motion system of the EDM equipment.
[0008] The swing device includes a pointer fixed on the swing bracket and a dial installed on the swing module. The dial fastening bolt and the pressing piece press the dial on the swing module. The dial fastening bolt is loosened, and the pressing piece is loosened accordingly, and the dial can rotate relative to the swing module for zero calibration. After that, the dial fastening bolt is tightened again, so that the pressing piece presses the dial on the swing module. The swing angle of the fixture connected to the swing module and the tool electrode can be obtained by the coordinated use of the pointer and the dial.
[0009] The swing bracket is provided with an arc groove, in which a swing module fastener is matched, and the swing module fastener is screwed to the swing module. The dial is located on the front of the swing module and the arc groove is designed on the back of the swing module. When the swing module swings left and right, the swing module fastener swings along the arc groove, and the arc groove limits the swing amplitude of the swing module. When the tool electrode reaches the desired tilt angle, tighten the swing module fastener so that the swing module fastener is pressed against the swing bracket to fix the position of the swing module relative to the swing bracket.
[0010] The bottom of the swing module is provided with a fixture positioning groove, and the fixture positioning groove is equipped with a fixture fastening screw. The fixture positioning block on the top of the fixture is matched in the fixture positioning groove, and the fixture fastening screw is turned. The moving direction of the fixture fastening screw is perpendicular to the side wall of the fixture positioning block and abuts against the side wall of the fixture positioning block to fix the connection between the fixture positioning block and the swing module.
[0011] The rotating module is provided with a plurality of rotating module positioning holes, and the rotating bracket is provided with a single rotating bracket positioning hole, and the positioning pin can be inserted into the rotating module positioning hole and the rotating bracket positioning hole. The rotating bracket and the rotating module are both in the shape of a disk, and the plurality of rotating module positioning holes are distributed circumferentially along the rotating module. The rotating bracket is provided with a mark, and the rotating module is provided with a scale. When the zero line of the scale is aligned with the mark, the rotating bracket positioning hole is aligned up and down with one of the rotating module positioning holes. When the rotating module rotates a certain angle, the rotating bracket positioning hole is aligned up and down with another rotating module positioning hole, and the positioning pin is inserted to fix the relative position of the rotating module and the rotating bracket, and then, the position of the tool electrode rotating with the rotating module is fixed. A notch is provided on the rotating bracket, and the rotating bracket positioning hole is provided in the notch. The notch can not only mark the position of the rotating bracket positioning hole, but also facilitate the insertion of the positioning pin into the rotating bracket positioning hole.
[0012] The bottom of the rotating module is provided with a swing device positioning hole, the swing device positioning hole is matched with a swing device fastening screw, the swing device positioning block on the top of the swing bracket is matched in the swing device positioning hole, and the swing device fastening screw abuts against the side wall of the swing device positioning block. The swing device positioning block is matched in the swing device positioning hole, and the swing device fastening screw is turned, and the moving direction of the swing device fastening screw is perpendicular to the side wall of the swing device positioning block, and abuts against the side wall of the swing device positioning block to fix the connection between the swing device positioning block and the rotating module.
[0013] A rotating module connecting part is provided on the top of the rotating bracket, and the rotating module connecting part is connected to the three-dimensional motion system of the electric spark device, so that the entire fixture assembly and the tool electrode are installed on the electric spark device.
[0014] As an option for the clamp, the clamp is a two-claw clamp, which includes a clamp bracket, a guide rail fixed on the clamp bracket, a pair of clamps slidably fitted on the guide rail, and a double-rotation screw pivoted on the clamp bracket and screwed with the pair of clamps. A wrench hole is provided at the end of the screw, and the wrench drives the screw to rotate. The screw drives the pair of clamps to move toward each other along the guide rail, and the pair of clamps clamp the tool electrode.
[0015] An annular positioning groove is provided at the central position of the screw, a screw positioning hole is provided on the fixture bracket, a screw positioning block is assembled in the screw positioning hole, and the screw positioning block is fitted in the positioning groove. A positioning block fixing screw is screwed in the screw positioning hole, and the positioning block fixing screw abuts against the screw positioning block to restrict the screw positioning block in the positioning groove.
[0016] A longitudinal positioning groove and a transverse positioning groove are provided on the clamping plane of a pair of clamping jaws, so as to facilitate the positioning and clamping of the tool electrode by the pair of clamping jaws. A clamping auxiliary positioning hole is provided on the clamping jaws, and a limiting rod is matched in the clamping auxiliary positioning hole. The limiting rod is inserted into the pair of clamping jaws from the outside of the clamping jaws, and the clamping surface of the clamping jaws is protruded. The top surface of the tool electrode can be against the limiting rod, so that the tool electrode is positioned correctly between the pair of clamping jaws to avoid skewing.
[0017] As an option for the clamp, the clamp is a three-jaw clamp.
[0018] The fixture assembly of the utility model can adjust the inclination angle and inclination direction of the tool electrode under the premise that the workpiece is positioned according to the conventional method, so as to adapt to the processing requirements of products with different shapes and structures. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] Figure 1 It is a schematic diagram of the clamp assembly of the utility model, wherein the clamp adopts a two-claw clamp;
[0020] Figure 2for Figure 1 Left view of
[0021] Figure 3 It is a schematic diagram of the clamp assembly of the utility model, wherein the clamp adopts a three-jaw clamp;
[0022] Figure 4 for Figure 3 Left view of
[0023] Figure 5 is a schematic diagram of a two-jaw fixture;
[0024] Figure 6 for Figure 5 Left view of
[0025] Figure 7 for Figure 5 A top view of
[0026] Figure 8 for Figure 5 Rear view of
[0027] Fig. 9 Schematic diagram of a double-rotation screw;
[0028] Fig.10 is a schematic diagram of the jaws of a two-jaw gripper;
[0029] Fig.11 for Fig.10 Left view of
[0030] Fig.12 for Fig.10 Right view of;
[0031] Fig.13 is a schematic diagram of the swing device;
[0032] Fig.14 for Fig.13 Left view of
[0033] Fig.15 for Fig.13 Rear view of
[0034] Fig.16 for Fig.14 A top view of
[0035] Fig.17 is a schematic diagram of a rotating device;
[0036] Fig.18 for Fig.17 Left view of
[0037] Fig.19 for Fig.17 A top view of
[0038] Fig. 20 for Fig.17 Rear view of
[0039] Fig.21 is a schematic diagram of a three-jaw fixture;
[0040] Fig. 22 for Fig.21 A top view of
[0041] Fig.23 for Fig.21 Bottom view of .
[0042] Explanation of symbols in the figure:
[0043] 10. Swing device; 11. Swing module; 111. Axis of the swing module; 112. Clamp positioning groove; 113. Clamp fastening screw; 12. Swing bracket; 121. Arc groove; 122. Swing module fastener; 123. Swing device positioning block; 13. Pointer; 14. Dial; 141. Dial fastening bolt; 142. Pressing piece;
[0044] 20. Rotating device; 21. Rotating module; 211. Rotating axis of the rotating module; 212. Fastening screw of the swinging device; 22. Rotating bracket; 221. Rotating bracket positioning hole; 222. Rotating module connecting part; 223. Notch;
[0045] 30. Two-claw clamp; 31. Clamp bracket; 32. Guide rail; 33. Clamp of two-claw clamp; 331. Longitudinal positioning groove; 332. Transverse positioning groove; 333. Clamping auxiliary positioning hole; 34. Screw; 341. Wrench hole; 342. Positioning groove; 343. Screw positioning block; 344. Positioning block fixing screw; 35. Clamp positioning block;
[0046] 40. Three-jaw clamp; 41. Clamping jaws of the three-jaw clamp. DETAILED DESCRIPTION
[0047] refer to Figures 1 to 4 A clamp assembly with adjustable spatial position includes a clamp and an adjustment assembly, the adjustment assembly includes a swing device 10 and a rotation device 20, the swing device includes a swing module 11 and a swing bracket 12, the rotation device includes a rotation module 21 and a rotation bracket 22, the clamp is connected to the swing module, the swing module is pivoted to the swing bracket, the swing bracket is connected to the rotation module, the rotation module is pivoted to the rotation bracket, the rotation axis 211 of the rotation module is vertically arranged, and the axis line 111 of the swing module is perpendicular to the rotation axis.
[0048] The fixture is a two-jaw fixture 30 or a three-jaw fixture 40. The fixture clamps the tool electrode, and the swing module 11 swings relative to the swing bracket 12, driving the fixture and the tool electrode to swing synchronously, so that the tool electrode is tilted and the tilt angle of the tool electrode is adjusted. The rotating module 21 rotates relative to the rotating bracket 22, driving the fixture and the tool electrode to rotate 360 degrees, adjusting the tilt direction of the tool electrode, and the tool electrode can be in any tilt direction. The rotating bracket 22 is installed on the three-dimensional motion system of the EDM equipment.
[0049] like Figures 5 to 12 Regarding the clamp, the two-jaw clamp 30 includes a clamp bracket 31, a guide rail 32 fixed on the clamp bracket, a pair of clamping jaws 33 slidingly fitted on the guide rail, and a double-rotation screw 34 pivotally connected to the clamp bracket and threadedly connected to the pair of clamping jaws.
[0050] Regarding the clamp, a spanner hole 341 is provided at the end of the screw rod 34, and the spanner drives the screw rod to rotate. The screw rod drives a pair of clamping jaws 33 to move toward each other along the guide rail 32, and the pair of clamping jaws 33 clamp the tool electrode.
[0051] Regarding the clamp, a circular positioning groove 342 is provided at the central position of the screw 34, a screw positioning hole is provided on the clamp bracket 31, a screw positioning block 343 is assembled in the screw positioning hole, and the screw positioning block is fitted in the positioning groove 342. A positioning block fixing screw 344 is screwed into the screw positioning hole, and the positioning block fixing screw abuts against the screw positioning block 343, so that the screw positioning block is restricted in the positioning groove 342.
[0052] Regarding the clamp, a longitudinal positioning groove 331 and a transverse positioning groove 332 are provided on the clamping plane of a pair of clamping jaws 33, so as to facilitate the positioning and clamping of the tool electrode by the pair of clamping jaws. The clamping jaws 33 are provided with a clamping auxiliary positioning hole 333, in which a limiting rod is matched. The limiting rod is inserted horizontally between the pair of clamping jaws from the outside of the clamping jaws 33, protruding from the clamping surface of the clamping jaws, and the top surface of the tool electrode can be against the limiting rod, so that the tool electrode is positioned correctly between the pair of clamping jaws 33 to avoid skewing.
[0053] like Figures 13 to 16 The swing device 10 includes a pointer 13 fixed on a swing bracket 12, a dial 14 installed on the swing module 12, and a dial fastening bolt 141 and a pressing piece 142 press the dial on the swing module. The dial fastening bolt 141 is loosened, and the pressing piece 142 is loosened accordingly, and the dial 14 can rotate relative to the swing module 21 to perform zero calibration. Afterwards, the dial fastening bolt 141 is tightened again, so that the pressing piece 142 presses the dial 14 on the swing module 11. The swing angle of the fixture and the tool electrode connected to the swing module 11 can be obtained by the coordinated use of the pointer 13 and the dial 14.
[0054] Regarding the swing device, an arc groove 121 is provided on the swing bracket 12, and a swing module fastener 122 is matched in the arc groove, and the swing module fastener is screwed to the swing module 11. When the swing module 11 swings left and right, the swing module fastener 122 swings along the arc groove, and the arc groove 121 limits the swing amplitude of the swing module 11. When the tool electrode reaches the desired tilt angle, the swing module fastener 122 is tightened so that the swing module fastener is pressed against the swing bracket 12 to fix the position of the swing module 11 relative to the swing bracket 12.
[0055] Regarding the swing device, a clamp positioning groove 112 is provided at the bottom of the swing module 11, and the clamp positioning groove is equipped with a clamp fastening screw 113. The clamp positioning block 35 at the top of the clamp is fitted in the clamp positioning groove, and the clamp fastening screw abuts against the side wall of the clamp positioning block. The clamp positioning block at the top of the clamp is fitted in the clamp positioning groove 112, and the clamp fastening screw 113 is turned. The moving direction of the clamp fastening screw is perpendicular to the side wall of the clamp positioning block 35, and abuts against the side wall of the clamp positioning block to fix the connection between the clamp positioning block 35 and the swing module 11.
[0056] like Figures 17 to 20 Regarding the rotating device, a plurality of rotating module positioning holes are provided on the rotating module 21, and a rotating bracket 22 is provided with a rotating bracket positioning hole 221, and a positioning pin can be inserted into the rotating module positioning hole and the rotating bracket positioning hole. The rotating bracket and the rotating module are both in the shape of a disk, and a plurality of rotating module positioning holes are distributed along the circumference of the rotating module. A mark is provided on the rotating bracket 22, and a scale is provided on the rotating module 21. When the zero line of the scale is aligned with the mark, the rotating bracket positioning hole 221 is aligned up and down with one of the rotating module positioning holes. When the rotating module 21 rotates a certain angle, the rotating bracket positioning hole 221 is aligned up and down with another rotating module positioning hole, and the positioning pin is inserted to fix the relative position of the rotating module 21 and the rotating bracket 22, and then, the position of the tool electrode rotating with the rotating module is fixed.
[0057] Regarding the rotating device, a notch 223 is provided on the rotating bracket 22 , and the rotating bracket positioning hole 221 is provided in the notch 223 . The notch can not only mark the location of the rotating bracket positioning hole, but also facilitate the insertion of the positioning pin into the rotating bracket positioning hole 221 .
[0058] Regarding the rotating device, a swing device positioning hole is provided at the bottom of the rotating module 21, and the swing device positioning hole is matched with a swing device fastening screw 212. The swing device positioning block 123 at the top of the swing bracket 12 is matched in the swing device positioning hole, and the swing device fastening screw abuts against the side wall of the swing device positioning block. The swing device positioning block 123 is matched in the swing device positioning hole, and the swing device fastening screw 212 is turned. The moving direction of the swing device fastening screw 212 is perpendicular to the side wall of the swing device positioning block 123, and abuts against the side wall of the swing device positioning block to fix the connection between the swing device positioning block 123 and the rotating module 21.
[0059] Regarding the rotating device, a rotating module connecting portion 222 is provided on the top of the rotating bracket 22. The rotating module connecting portion is connected to the three-dimensional motion system of the electric spark device, and the entire fixture assembly and tool electrode are installed on the electric spark device.
[0060] The above contents are only preferred implementation modes of the present invention. For ordinary technicians in this field, according to the concept of the present invention, there may be changes in the specific implementation mode and application scope. The content of this specification should not be understood as limiting the present invention.
[0061] Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of this utility model should be included in the protection scope of this utility model.
Claims
1. A fixture assembly with adjustable spatial position, comprising a fixture and an adjustment assembly, characterized in that: The adjustment assembly comprises a swing device (10) and a rotating device (20), the swing device comprises a swing module (11) and a swing bracket (12), the rotating device comprises a rotating module (21) and a rotating bracket (22), the clamp is connected to the swing module, the swing module is pivotally connected to the swing bracket, the swing bracket is connected to the rotating module, the rotating module is pivotally connected to the rotating bracket, the rotating axis (211) of the rotating module is vertically arranged, and the axis center line (111) of the swing module is perpendicular to the rotating axis.
2. The spatially adjustable fixture assembly according to claim 1, characterized in that: The swing device (10) comprises a pointer (13) fixed on a swing bracket (12), a dial (14) mounted on a swing module (11), and the dial fastening bolts (141) and a pressing piece (142) press the dial onto the swing module.
3. The spatially adjustable fixture assembly according to claim 1, characterized in that: An arc-shaped groove (121) is provided on the swing bracket (12), a swing module fastener (122) is matched in the arc-shaped groove, and the swing module fastener is screwed to the swing module (11).
4. The spatially adjustable fixture assembly according to claim 1, characterized in that: A clamp positioning groove (112) is provided at the bottom of the swing module (11), and the clamp positioning groove is equipped with a clamp fastening screw (113). A clamp positioning block at the top of the clamp is fitted in the clamp positioning groove, and the clamp fastening screw abuts against the side wall of the clamp positioning block.
5. The spatially adjustable fixture assembly according to claim 1, characterized in that: The rotating module (21) is provided with a plurality of rotating module positioning holes, the rotating bracket is provided with a rotating bracket positioning hole (221), and the positioning pins can be inserted into the rotating module positioning holes and the rotating bracket positioning holes.
6. The spatially adjustable fixture assembly according to claim 1, characterized in that: A swing device positioning hole is provided at the bottom of the rotating module (21), and the swing device positioning hole is matched with a swing device fastening screw (212). A swing device positioning block (123) at the top of the swing bracket (12) is matched in the swing device positioning hole, and the swing device fastening screw abuts against the side wall of the swing device positioning block.
7. The spatially adjustable fixture assembly according to claim 1, characterized in that: A rotating module connecting portion (222) is provided on the top of the rotating bracket (22).
8. The spatially adjustable fixture assembly according to claim 1, characterized in that: The clamp is a two-claw clamp (30), comprising a clamp bracket (31), a guide rail (32) fixed on the clamp bracket, a pair of clamping jaws (33) slidingly matched on the guide rail, and a double-rotation screw (34) pivotally connected to the clamp bracket and screwed to the pair of clamping jaws.
9. The spatially adjustable fixture assembly according to claim 1, characterized in that: The clamp is a three-jaw clamp (40).