Portable rotating electrode clamping device

Abstract

A portable rotating electrode clamping device comprises a shell, an autorotation piece, a clamping jaw, an ejector block and a rotating structure, the autorotation piece penetrates through the shell and can rotate relative to the shell, one end of the clamping jaw is rotationally connected with the shell and connected with the autorotation piece in a meshed mode, the other side of the clamping jaw is bent towards the ejector block and forms a hook part, and the autorotation piece drives the clamping jaw to rotate when rotating; the top block is used for abutting against the end face of the electrode, the hook part is used for clamping the edge of the electrode, the rotating structure is rotationally connected with the other side of the shell, and the rotating structure is used for adjusting the relative position of the shell and the rotating structure.

Description

Technical Field

[0001] This utility model relates to the field of clamping technology, and in particular to a portable rotating electrode clamping device. Background Technology

[0002] In the field of mold manufacturing, spark electrical discharge machining (EDM) is a key technology for overcoming the challenges of machining complex areas. Narrow and deep areas such as ribs and pillars are difficult for machining centers to reach, but EDM, with its unique principle—a pulsed discharge between the tool electrode and the workpiece electrode generating instantaneous high temperatures—locally melts and vaporizes the workpiece material, achieving etching and meeting the demands of high-precision machining.

[0003] However, the current actual production process has many pain points. To ensure machining accuracy, operators need to frequently calibrate the electrodes to ensure they are horizontal in the X and Y axes and perpendicular to the machining plane in the Z axis. Each time the electrode is changed, it must be carefully recalibrated and repositioned. At the same time, the electrode angle needs to be flexibly adjusted during machining depending on the workpiece, but some existing technologies cannot achieve this directly, and the electrode must be disassembled and reinstalled.

[0004] This traditional calibration and adjustment method is cumbersome, consumes a lot of time, greatly reduces overall processing efficiency, and increases the workload of operators. Furthermore, this process is highly dependent on manual skills; even slight deviations in the electrodes can cause quality problems in the mold parts, affecting the overall quality of mold manufacturing. Utility Model Content

[0005] The purpose of this invention is to provide a portable rotating electrode clamping device, which solves the problems mentioned above regarding the need for repeated debugging and calibration when replacing EDM electrodes and the necessity of reinstallation when rotation is required.

[0006] To achieve the above objectives, this utility model provides a portable rotating electrode clamping device, comprising a housing, a rotating component, a gripper, a top block, and a rotating structure.

[0007] The rotating component passes through the housing and can rotate relative to the housing;

[0008] At least two grippers are provided. One end of each gripper is rotatably connected to the housing and engages with the rotating component. The other side is bent toward the top block and forms a hook.

[0009] The top block is disposed on one side of the housing at a position opposite to the hook, and can move relative to the housing in a direction closer to or away from the hook, and the axis of the top block coincides with the axis of the rotating component;

[0010] The rotating structure is rotatably connected to the other side of the housing, and the rotating structure is used to adjust the relative position of the housing and the rotating structure.

[0011] When the self-rotating component rotates, it drives the gripper to rotate, so that the gripper can expand or contract toward the top block. The top block is used to abut against the electrode end face, and the hook is used to hold the electrode edge.

[0012] Preferably, the rotating structure includes a rotating rod and a locking member. One end of the rotating rod is inserted into the housing and is provided with a limiting groove. The housing is provided with a locking hole corresponding to the limiting groove. The locking member passes through the locking hole and abuts against the limiting groove.

[0013] Preferably, the end of the rotating rod inserted into the housing has a fixed protrusion, the housing has a rotating cavity, and the fixed protrusion is located in the rotating cavity and abuts against the rotating cavity.

[0014] Preferably, the limiting groove is provided with a plurality of positioning holes, which are abutted and connected to the locking component.

[0015] Preferably, the self-rotating component includes a main body, an adjusting part and a worm gear part disposed on the main body, the main body passing through the housing and rotatably connected to the housing, the adjusting part protruding outside the housing, and rotating the adjusting part thereby driving the main body to rotate.

[0016] The end of the gripper that is connected to the rotating component is provided with teeth, which mesh with the worm gear.

[0017] Preferably, the outer surface of the adjustment part is provided with knurled embossing.

[0018] Preferably, the main body has a threaded connection at one end passing through the housing, and the threaded connection engages with the top block.

[0019] Preferably, the top block is also provided with a force-applying hole.

[0020] Preferably, the gripper is connected to the housing via a connector.

[0021] The end of the gripper away from the hook is provided with a connecting hole, and the connector passes through the connecting hole and is fixedly connected to the housing.

[0022] The beneficial effects of this utility model are:

[0023] 1. This invention utilizes a rotating component to expand or contract the grippers, achieving rapid and precise electrode fixation. Unlike traditional methods, it eliminates the need for repeated calibration of the electrode's X, Y, and Z axis positions, saving calibration time and improving processing efficiency. The top block and grippers act on the electrode's end face and edge respectively, ensuring stable electrode clamping, reducing processing quality issues caused by unstable electrode fixation, and improving mold manufacturing quality. Furthermore, rotating the component allows for precise adjustment of the top block position to accommodate electrodes of different sizes, enhancing electrode clamping stability and improving the device's adaptability to various electrodes.

[0024] 2. The rotating structure of this utility model allows for adjustment of the relative position between the housing and the rotating structure, enabling flexible adjustment of the electrode angle during processing. This eliminates the need to disassemble and reassemble the electrode, making operation convenient and efficient, and reducing the workload of operators. Furthermore, multiple positioning holes on the limiting groove, in conjunction with locking components, provide a variety of angle positioning options for the rotating structure, meeting the precise adjustment and locking of the electrode angle under different processing requirements, thus improving processing flexibility and accuracy. Attached Figure Description

[0025] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.

[0026] Figure 1 This is a schematic diagram of the structure of this utility model.

[0027] Figure 2 This is a cross-sectional schematic diagram of the present invention.

[0028] Figure 3 This is an exploded view of the present invention.

[0029] Figure 4 yes Figure 2 Enlarged view of point A in the middle.

[0030] In the figure: 1. Housing; 11. Lock hole; 12. Rotating cavity; 2. Rotating component; 21. Main body; 22. Adjustment part; 23. Worm gear part; 24. Threaded connection part; 3. Gripper; 31. Hook part; 32. Tooth part; 33. Connecting part; 34. Connecting hole; 4. Top block; 41. Force-applying hole; 5. Rotating structure; 51. Rotating rod; 52. Locking component; 511. Limiting groove; 512. Fixing flange; 513. Positioning hole. Detailed Implementation

[0031] The embodiments of the present invention are described in detail below. Examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, but should not be construed as limiting the present invention.

[0032] In the current mold manufacturing field, traditional electrode clamping and adjustment methods have many drawbacks. Conventional methods are often cumbersome, requiring operators to spend a lot of time and energy on electrode calibration and positioning; they are inefficient, with frequent calibration and reinstallation of electrodes severely slowing down the overall processing progress; moreover, accuracy is difficult to guarantee, requiring high operator skills, and even slight deviations can affect the quality of mold manufacturing.

[0033] like Figure 1 As shown, a portable rotary electrode clamping device mainly consists of a housing 1, a rotating component 2, a gripper 3, a top block 4, and a rotating structure 5. The housing 1 serves as the basic framework, providing support and a mounting platform for the other components. The rotating component 2, gripper 3, top block 4, and rotating structure 5 are respectively installed at corresponding positions on the housing 1. These components cooperate to jointly perform the functions of clamping and adjusting the angle of the electrode.

[0034] Specifically, the rotating component 2 is the core component driving the electrode clamping action. It penetrates the housing 1 and can rotate relative to the housing 1. The gripper 3 is the component that directly contacts the electrode and performs the clamping function; at least two grippers are provided. One end of the gripper 3 is rotatably connected to the housing 1 via a connector 33 and engages with the rotating component 2. The other end is bent towards the top block 4 to form a hook 31. The gripper 3 is connected to the housing 1 via the connector 33, ensuring both flexible rotation around the connection point and a stable connection sufficient to withstand various forces acting on the electrode during processing. When the rotating component 2 rotates, according to the gear meshing principle, it drives the gripper 3 to mesh and rotate accordingly, causing the gripper 3 to rotate around the connection point with the housing 1. As the gripper 3 rotates, its hook 31 gradually approaches the edge of the electrode until it clamps the electrode, completing the clamping process. Furthermore, the top block 4 is positioned on one side of the housing 1 opposite to the hook 31 of the gripper 3, allowing it to move closer to or further away from the hook 31 relative to the housing 1. The axis of the top block 4 coincides with the axis of the rotating component 2. When the hook 31 of the gripper 3 engages the electrode edge, the top block 4 moves towards the electrode end face and abuts tightly. The top block 4 and the gripper 3 apply forces to the electrode from two opposing directions, forming a stable clamping structure that effectively prevents displacement or wobbling of the electrode during processing. The design of the top block 4's axis coinciding with the axis of the rotating component 2 ensures more uniform force transmission during electrode clamping and rotation, reducing eccentric loads on the electrode. The top block 4 and the gripper 3 work together; the hook 31 of the gripper 3 engages the electrode edge, while the top block 4 abuts against the electrode end face, applying stable forces to the electrode from two directions. This keeps the electrode in a fixed position during processing, preventing displacement or wobbling and ensuring processing accuracy. In addition, the rotating structure 5 is used to achieve flexible adjustment of the electrode angle. It is rotatably connected to the other side of the housing 1.

[0035] Furthermore, the self-rotating component 2 consists of a main body 21, an adjusting part 22, and a worm gear part 23 disposed on the main body 21. During installation, it is necessary to ensure that the main body 21 passes smoothly through the housing 1, and that the fit clearance between the main body 21 and the housing 1 is appropriate; it should not be too loose, causing unstable rotation, nor too tight, generating excessive frictional resistance. The adjusting part 22 is disposed at one end of the main body 21 and protrudes from the outer surface of the housing 1. The worm gear part 23 is located on the main body 21 at the position where it engages with the gripper 3. Its tooth profile and parameters are calculated to ensure precise meshing with the teeth 32 of the gripper 3, transmitting stable driving force.

[0036] Furthermore, the outer surface of the adjustment section is designed with knurled textures. This structure increases the friction between the operator's hand and the adjustment section 22, facilitating the operation of the rotating component 2. When the operator rotates the adjustment section 22, the friction provided by the knurled textures easily drives the main body 21 to rotate. The rotation of the main body 21 is transmitted to the gripper 3 through the worm gear 23. Based on the worm gear transmission principle, the rotational motion of the rotating component 2 is converted into the opening and closing action of the gripper 3, thereby realizing the clamping and releasing operation of the electrode.

[0037] At least two grippers 3 are provided, as they are components that directly contact the electrodes and perform the gripping function. For example... Figure 2 As shown, one end of the gripper 3 is rotatably connected to the housing 1 via a connector 33, while the other end is bent towards the top block 4 to form a hook 31, which meshes with the worm gear 23 of the rotating component 2. The gripper 3 is connected to the housing 1 via the connector 33, ensuring both flexible rotation around the connection point and a stable connection sufficient to withstand various forces acting on the electrode during processing. When installing the gripper 3, it is crucial to ensure a tight connection between the connector 33, the gripper 3, and the housing 1, without any loosening. Simultaneously, the end of the gripper 3 connected to the rotating component 2 is equipped with teeth 32, which precisely mesh with the worm gear 23. By strictly controlling the tooth clearance and tooth profile accuracy, the gripper 3 accurately responds to the drive of the rotating component 2, achieving stable and reliable clamping action. The end of the gripper 3 away from the hook 31 has a connecting hole 34 that fits the connector 33. The connector 33 passes through the connecting hole 34 and is fixedly connected to the housing 1, ensuring the accuracy and reliability of the connection.

[0038] Furthermore, the connector 33 of this invention can be a pin, which fixes the gripper 3 to the housing 1, making it non-removable and ensuring stable operation of the device. However, the connector 33 can also be a bolt, which allows for a detachable connection between the gripper 3 and the housing 1 to accommodate the replacement of different electrode sizes.

[0039] In addition, see Figure 2 , Figure 3The top block 4 is located on one side of the housing 1 opposite to the hook 31, and can move towards or away from the hook 31 relative to the housing 1. The axis of the top block 4 coincides with the axis of the rotating component 2. When the hook 31 of the gripper 3 clamps the electrode edge, the top block 4 comes into close contact with the electrode end face. At this time, the top block 4 and the gripper 3 work together to apply a stable force to the electrode from two directions, ensuring that the electrode will not shift or wobble during processing. The coincidence of the axis of the top block 4 with the axis of the rotating component 2 ensures that the force transmission is more uniform and stable during electrode clamping and rotation, effectively reducing the eccentric load on the electrode and improving processing accuracy and electrode stability. Specifically, the end of the main body 21 that passes through the housing 1 is provided with a threaded connection part 24, which engages with the top block 4 to adjust the position of the top block 4.

[0040] The top block 4 is also provided with a force-applying hole 41, which allows the operator to apply greater force with a tool when adjusting the position of the top block 4, so that the top block 4 can be tightly abutted against the electrode end face, ensuring that the electrode is firmly and reliably clamped.

[0041] Working principle of electrode clamping: When it is necessary to clamp and fix the electrode, place the electrode between the jaw 3 and the top block 4, aligning the electrode edge with the hook 31 of the jaw 3, and the electrode end face facing the top block 4. By rotating the adjusting part 22 of the self-rotating component 2, the main body 21 is driven to rotate. The rotation of the main body 21 is connected to the tooth 32 of the jaw 3 through the meshing of the worm gear 23, driving the jaw 3 to rotate, so that the jaw 3 retracts towards the top block 4, and the hook 31 of the jaw 3 locks the electrode edge. Then, rotate the top block 4, and use the meshing relationship between the threaded connection part 24 of the top block 4 and the main body 21 to move the top block 4 to a suitable position. If necessary, force is applied through the force hole 41 to make it abut against the electrode end face, thus completing the fixing of the electrode.

[0042] Rotating structure 5 is responsible for enabling flexible adjustment of the electrode angle, such as... Figure 2 , Figure 4 As shown, it includes a rotating rod 51 and a locking element 52. One end of the rotating rod 51 is inserted into the housing 1 and has a limiting groove 511. The housing 1 has a locking hole 11 corresponding to the limiting groove 511. The locking element 52 passes through the locking hole 11 and abuts against the limiting groove 511. The end of the rotating rod 51 inserted into the housing 1 has a fixed protrusion 512. The housing 1 has a rotating cavity 12, and the fixed protrusion 512 is located in the rotating cavity 12 and abuts against it. The fixed protrusion 512 on the rotating rod 51 is accurately located in the rotating cavity 12 inside the housing 1 and achieves a tight and smooth abutment with the rotating cavity 12, which greatly enhances the stability of the rotation of the rotating rod 51 and reduces radial and axial runout during rotation. By passing the locking element 52 through the locking hole 11 and abutting against the limiting groove 511, the position of the rotating rod 51 can be locked at all angles and in multiple directions.

[0043] Furthermore, multiple positioning holes 513 are evenly distributed on the limiting groove 511, and the positioning holes 513 abut against and connect with the locking member 52. The positioning holes 513 can be preset at certain angles as needed, such as 90°, 180°, 270°, etc., to facilitate convenient adjustment of the specific angle of the rotating rod 51, firmly lock the position of the rotating rod 51, and ensure that the electrode angle remains stable during subsequent processing, meeting the requirements of high-precision machining.

[0044] Electrode angle adjustment working principle: When the electrode angle needs to be adjusted, the operator first loosens the locking piece 52 in the rotating structure 5, temporarily separating it from the limiting groove 511, thus releasing the lock on the rotating rod 51. At this time, according to the processing requirements, the housing 1 is rotated to adjust the electrode angle. The operator can measure the change in electrode angle, stop rotating when the desired angle is reached, and then reconnect the locking piece 52 through the locking hole 11 to the limiting groove 511 or the positioning hole 513 to securely lock the position of the rotating rod 51, completing the angle adjustment.

[0045] The above-disclosed embodiments are merely one or more preferred embodiments of this application and should not be construed as limiting the scope of this application. Those skilled in the art can understand that all or part of the processes for implementing the above embodiments and equivalent changes made in accordance with the claims of this application still fall within the scope of this application.

Claims

1. A portable rotating electrode clamping device, comprising a housing (1), a self-rotating component (2), a gripper (3), a top block (4), and a rotating structure (5). The rotating component (2) passes through the housing (1) and can rotate relative to the housing (1); At least two grippers (3) are provided. One end of the gripper (3) is rotatably connected to the housing (1) and meshes with the self-rotating component (2). The other side is bent toward the top block (4) and forms a hook (31). The top block (4) is located on one side of the housing (1) at the opposite position of the hook (31), and can move relative to the housing (1) in the direction of approaching or moving away from the hook (31), and the axis of the top block (4) coincides with the axis of the self-rotating component (2); The rotating structure (5) is rotatably connected to the other side of the housing (1), and the rotating structure (5) is used to adjust the relative position of the housing (1) and the rotating structure (5); in, When the self-rotating component (2) rotates, it drives the gripper (3) to rotate, so that the gripper (3) can expand or contract toward the top block (4). The top block (4) is used to abut against the electrode end face, and the hook (31) is used to hold the electrode edge.

2. The portable rotary electrode clamping device as described in claim 1, characterized in that, The rotating structure (5) includes a rotating rod (51) and a locking member (52). One end of the rotating rod (51) is inserted into the housing (1) and is provided with a limiting groove (511). The housing (1) is provided with a locking hole (11) corresponding to the limiting groove (511). The locking member (52) passes through the locking hole (11) and abuts against the limiting groove (511).

3. The portable rotary electrode clamping device as described in claim 2, characterized in that, The rotating rod (51) is inserted into the housing (1) at one end and has a fixed protrusion (512). The housing (1) has a rotating cavity (12) inside it. The fixed protrusion (512) is located inside the rotating cavity (12) and abuts against the rotating cavity (12).

4. A portable rotary electrode clamping device as described in claim 2, characterized in that, The limiting groove (511) is provided with a plurality of positioning holes (513), and the positioning holes (513) are abutted and connected to the locking member (52).

5. A portable rotary electrode clamping device as described in claim 1, characterized in that, The self-rotating component (2) includes a main body (21), an adjustment part (22) and a worm gear part (23) disposed on the main body (21). The main body (21) passes through the housing (1) and is rotatably connected to the housing (1). The adjustment part (22) protrudes outside the housing (1). By rotating the adjustment part (22), the main body (21) is driven to rotate. The end of the gripper (3) connected to the rotating part (2) is provided with a tooth (32), and the tooth (32) is engaged with the worm (23).

6. A portable rotary electrode clamping device as described in claim 5, characterized in that, The outer surface of the adjustment part (22) is provided with knurled embossed texture.

7. A portable rotary electrode clamping device as described in claim 5, characterized in that, The main body (21) has a threaded connection (24) at one end that passes through the housing (1), and the threaded connection (24) engages with the top block (4).

8. A portable rotary electrode clamping device as described in claim 7, characterized in that, The top block (4) is also provided with a force-adding hole (41).

9. A portable rotary electrode clamping device as described in claim 1, characterized in that, The gripper (3) is connected to the housing (1) via a connector (33). The gripper (3) has a connecting hole (34) at one end away from the hook (31), and the connector (33) passes through the connecting hole (34) and is fixedly connected to the housing (1).

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