Plasma spraying tool clamp
By designing a drive motor and sensing components to automatically clamp workpieces, the problem of needing to adjust motor parameters in existing plasma spraying fixtures has been solved, realizing automatic clamping and rotation of workpieces and improving operational convenience and applicability.
Patent Information
- Application Number
- CN202423165054.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-21
- Publication Date
- 2025-11-11
- Estimated Expiration
- 2034-12-21
AI Technical Summary
Existing plasma spraying fixtures require adjustment of motor parameters when clamping workpieces of different sizes, which is inconvenient to operate.
A clamping structure including a drive motor, a moving block, a clamping component, and a sensing component is designed. The drive motor drives the moving block to move, the sensing component automatically shuts off the motor, and the clamping component has a replaceable clamping plate, realizing automatic clamping and rotation without adjusting motor parameters.
It enables automatic clamping and rotation of workpieces, simplifies the operation process, and improves the practicality and applicability of the fixture.
Smart Images

Figure CN223535176U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of spraying fixture technology, specifically to plasma spraying tooling fixtures. Background Technology
[0002] Workpieces need to be coated during production. Plasma spraying is a technology for strengthening and modifying the surface of materials. Plasma spraying technology uses a plasma arc as a heat source to heat the coating powder such as ceramics, alloys and metals to a molten or semi-molten state, and then accelerates the plasma jet ejected through the nozzle to spray onto the surface of the pre-treated workpiece at a certain speed to form a strong coating.
[0003] In plasma spraying, fixtures are used to clamp the workpiece. For example, Chinese utility model patent CN219377602U discloses a fixture for plasma spraying, including a worktable and a support at the bottom of the worktable. The top of the worktable has a guide rail groove, and a bidirectional screw is rotatably mounted inside the guide rail groove. One end of the bidirectional screw is connected to the output end of a motor on one side of the worktable via a coupling. The bidirectional screw has two symmetrically arranged threaded seats, and each of the two threaded seats has a support plate on its top. There are two support plates, and each support plate has a rotating mechanism. The side of the two support plates that are close to each other is connected to a clamping mechanism via the rotating mechanism. The clamping mechanism clamps the workpiece to be sprayed. This utility model, through a series of structures, is used for plasma spraying clamping, which facilitates multi-sided spraying operations by rotating the workpiece in the clamped state, reduces the number of workpiece clamping operations and wear, improves spraying efficiency, and allows switching of clamping surfaces on the clamping plates. The fixture has high adaptability, wide applicability, and stable adjustment.
[0004] However, some problems still exist. Although the fixture has high adaptability and wide applicability due to the support frame and clamping plate with multiple clamping surfaces, when clamping different workpieces, the different sizes of the workpieces require adjustment of the motor parameters each time the workpiece is clamped, which is somewhat inconvenient. Therefore, a plasma spraying tooling fixture is proposed to solve the above problems. Utility Model Content
[0005] To address the shortcomings of existing technologies, this utility model provides a plasma spraying fixture, which has the advantages of convenient operation and solves the problem of needing to adjust motor parameters each time a workpiece is clamped.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a plasma spraying fixture, including a worktable, a drive motor fixed on the right side of the worktable, a drive rod fixed to the output shaft of the drive motor and extending into the interior of the worktable, two movable blocks threaded to the outer surface of the drive rod and extending to the top of the worktable, and a movable plate fixed to the top of the movable blocks;
[0007] A sensing component is rotatably connected to the left side of the right-side movable plate, and a push motor is fixed to the left side of the left-side movable plate. A push rod that passes through to the right side of the left-side movable plate is fixed to the output shaft of the push motor. A clamping component is fixed to the side of the push rod opposite to the sensing component. The clamping component is used to clamp the spraying fixture.
[0008] The sensing component includes an extension block, an extension rod, a support spring, and a sensing button. The left side of the right movable plate is rotatably connected to the extension block. The interior of the extension block is slidably connected to the extension rod. The left side of the extension rod is fixed to the clamping component. The right side of the extension rod is fixed to the support spring that is fixed to the extension block. The right side wall of the inner cavity of the extension block is fixed to the sensing button.
[0009] By adopting this technical solution, after the clamping assembly clamps the workpiece, the moving plate continues to move, which pushes the extension rod to move into the extension block, thereby pressing the sensor button and turning off the drive motor.
[0010] Furthermore, the clamping assembly includes a mounting frame, a clamping plate, two positioning rods, and two positioning springs. The mounting frames are fixed to the push rod and the extension rod, respectively. The two mounting frames are inserted into the clamping plate on opposite sides. The positioning rods inserted into the clamping plate on the upper and lower sides of the mounting frames are slidably connected. The positioning rods and the mounting frames are fixed together with the positioning springs.
[0011] By adopting this technical solution, the positioning rod can be disconnected from the clamping plate by pulling the positioning rod, thus making it easy to disassemble the clamping plate and replace it with different clamping plates according to the shape of the workpiece.
[0012] Furthermore, the drive rod is a bidirectional threaded screw, and the moving block has a threaded hole inside that is compatible with the drive rod.
[0013] Furthermore, a stabilizing block is fixed to the outer surface of the movable block, and a stabilizing groove adapted to the stabilizing block is provided inside the workbench.
[0014] By adopting this technical solution, the stabilizing block and stabilizing groove make the movement of the moving block more stable and prevent it from rotating.
[0015] Furthermore, a base is fixed to the bottom of the workbench, and a rubber pad is fixed to the bottom of the base.
[0016] By adopting this technical solution, the base and rubber pads make the workbench more stable.
[0017] Furthermore, a fixed bearing is fixed to the left side wall of the inner cavity of the worktable, and the interior of the fixed bearing is fixed to the drive rod.
[0018] By adopting this technical solution and using a fixed bearing, the rotation of the drive rod becomes more stable.
[0019] Furthermore, sliding blocks that extend through the outside of the extension block are fixed on both the upper and lower sides of the extension rod, and sliding holes that are slidably connected to the sliding blocks are opened inside the extension block.
[0020] By adopting this technical solution, the movement of the extension rod is made more stable through the sliding hole and sliding block, and the extension block will drive the extension rod to rotate.
[0021] Furthermore, a positioning block is fixed on the outer surface of the push rod, and a positioning groove that is slidably connected to the positioning block is opened inside the moving plate on the left side.
[0022] By adopting this technical solution, the rotation of the push rod is made more stable through the setting of positioning blocks and positioning grooves.
[0023] Compared with the prior art, the technical solution of this application has the following beneficial effects:
[0024] 1. This plasma spraying fixture can rotate the drive rod by starting the drive motor, thereby moving the non-rotating moving block. This allows the clamping component to clamp and fix the workpiece. After the clamping component has clamped and fixed the workpiece, the moving block continues to move, which will push the sensing component to move, thereby turning off the drive motor. Therefore, there is no need to set the parameters of the drive motor, making the whole thing more practical.
[0025] 2. After the workpiece is fixed by the clamping component, the clamping component and the workpiece can be rotated by starting the drive motor, which facilitates the spraying of the workpiece. The clamping component can be changed according to different workpieces, making the whole set more practical. Attached Figure Description
[0026] Figure 1 This is a schematic diagram of the structure of this utility model;
[0027] Figure 2 This is a schematic diagram of the sensing component structure of this utility model;
[0028] Figure 3 This is a perspective view of the connection structure between the mounting frame and the positioning rod of this utility model.
[0029] In the diagram: 1. Workbench; 2. Drive motor; 3. Drive rod; 4. Moving block; 5. Moving plate; 6. Sensing component; 601. Extension block; 602. Extension rod; 603. Support spring; 604. Sensing button; 7. Push motor; 8. Push rod; 9. Clamping component; 901. Mounting frame; 902. Clamping plate; 903. Positioning rod; 904. Positioning spring; 10. Base; 11. Fixed bearing; 12. Stabilizing block. Detailed Implementation
[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0031] Please see Figures 1 to 3 In this embodiment, the plasma spraying fixture includes a worktable 1, a base 10 fixed to the bottom of the worktable 1, and a rubber pad fixed to the bottom of the base 10. The base 10 and the rubber pad make the support of the worktable 1 more stable. A drive motor 2 is fixed to the right side of the worktable 1. A drive rod 3 that penetrates into the interior of the worktable 1 is fixed to the output shaft of the drive motor 2. A fixed bearing 11 is fixed to the left side wall of the inner cavity of the worktable 1. The interior of the fixed bearing 11 is fixed to the drive rod 3. The fixed bearing 11 makes the rotation of the drive rod 3 more stable.
[0032] In addition, the drive rod 3 is a two-way threaded screw, and the inside of the moving block 4 is provided with a threaded hole that matches the drive rod 3. The outer surface of the drive rod 3 is threaded with two moving blocks 4 that extend to the top of the workbench 1. The outer surface of the moving block 4 is fixed with a stabilizing block 12, and the inside of the workbench 1 is provided with a stabilizing groove that matches the stabilizing block 12. The stabilizing block 12 and the stabilizing groove make the movement of the moving block 4 more stable and prevent it from rotating. The top of the moving block 4 is fixed with a moving plate 5.
[0033] Furthermore, a sensing component 6 is rotatably connected to the left side of the right movable plate 5, and a push motor 7 is fixed to the left side of the left movable plate 5. A push rod 8, extending through to the right side of the left movable plate 5, is fixed to the output shaft of the push motor 7. A positioning block is fixed to the outer surface of the push rod 8, and a positioning groove is slidably connected to the positioning block inside the left movable plate 5. The positioning block and positioning groove ensure more stable rotation of the push rod 8. Clamping components 9 are fixed to the side of the push rod 8 opposite to the sensing component 6. The clamping components 9 include a mounting frame 901, a clamping plate 902, two positioning rods 903, and two... The positioning spring 904 and the mounting frame 901 are fixed to the push rod 8 and the extension rod 602 respectively. The opposite side of the two mounting frames 901 is inserted into the clamping plate 902. The positioning rods 903 inserted into the clamping plate 902 on the upper and lower sides of the mounting frame 901 are slidably connected. The positioning rods 903 and the mounting frame 901 are fixed to the positioning spring 904. By pulling the positioning rods 903, the positioning rods 903 can be disconnected from the clamping plate 902, so that the clamping plate 902 can be easily disassembled. Different clamping plates 902 can be replaced according to the shape of the workpiece. The clamping assembly 9 is used to clamp the spraying fixture.
[0034] In summary, when it is necessary to disassemble the clamping plate 902, the positioning rod 903 can be pulled to disengage it from the clamping plate 902. At this time, the clamping plate 902 can be disassembled by pulling it, thus making the whole system more practical.
[0035] Please refer to it again. Figure 1 and Figure 2 In this embodiment, the sensing component 6 includes an extension block 601, an extension rod 602, a support spring 603, and a sensing button 604. The left side of the right movable plate 5 is rotatably connected to the extension block 601. The interior of the extension block 601 is slidably connected to the extension rod 602. Sliding blocks that penetrate to the outside of the extension block 601 are fixed on both the upper and lower sides of the extension rod 602. A sliding hole that is slidably connected to the sliding block is opened inside the extension block 601. Through the sliding hole and the sliding block, the movement of the extension rod 602 is more stable, and the extension block 601 will drive the extension rod 602 to rotate. The left side of the extension rod 602 is fixed to the clamping component 9, and the right side of the extension rod 602 is fixed to the support spring 603 fixed to the extension block 601. The right side wall of the inner cavity of the extension block 601 is fixed to the sensing button 604.
[0036] In summary, after the clamping assembly 9 clamps the workpiece, the continued movement of the moving plate 5 will push the extension rod 602 into the extension block 601, thereby pressing the sensing button 604 and turning off the drive motor 2.
[0037] All electrical components mentioned in this article are electrically connected to the controller and power supply. The control method of this utility model is controlled by the controller. The control circuit of the controller can be implemented by simple programming by those skilled in the art. The power supply is also common knowledge in the art. Furthermore, this utility model is mainly used to protect mechanical devices, so the control method and circuit connection will not be explained in detail.
[0038] The working principle of the above embodiments is as follows:
[0039] By activating the drive motor 2, the drive rod 3 rotates, causing the non-rotating moving block 4 to move. This, in turn, causes the two moving plates 5 to move relative to the clamping assembly 9, clamping the workpiece located between the two clamping assemblies 9. After clamping the workpiece, the moving plate 5 continues to move, pushing the extension rod 602 into the extension block 601, causing the extension block 601 to contact the sensor button 604 and press the sensor button 604. At this time, the sensor button 604 transmits an electrical signal to shut off the drive motor 2, thus eliminating the need to adjust the parameters of the drive motor 2 and effectively improving the convenience of operation. By activating the push motor 7, the push rod 8 rotates. The large friction between the clamping assembly 9 and the workpiece causes the clamping assembly 9 to rotate together with the workpiece, facilitating the spraying of the workpiece and making the whole system more practical.
Claims
1. A plasma spraying fixture, comprising a worktable (1), characterized in that: A drive motor (2) is fixed on the right side of the workbench (1). The output shaft of the drive motor (2) is fixed with a drive rod (3) that penetrates into the workbench (1). The outer surface of the drive rod (3) is threaded with two moving blocks (4) that penetrate to the top of the workbench (1). A moving plate (5) is fixed on the top of the moving blocks (4). A sensing component (6) is rotatably connected to the left side of the right-side movable plate (5), and a push motor (7) is fixed to the left side of the left-side movable plate (5). A push rod (8) that passes through to the right side of the left-side movable plate (5) is fixed to the output shaft of the push motor (7). A clamping component (9) is fixed to the side of the push rod (8) opposite to the sensing component (6). The clamping component (9) is used to clamp the spraying fixture. The sensing component (6) includes an extension block (601), an extension rod (602), a support spring (603), and a sensing button (604). The left side of the right-side movable plate (5) is rotatably connected to the extension block (601). The interior of the extension block (601) is slidably connected to the extension rod (602). The left side of the extension rod (602) is fixed to the clamping component (9). The right side of the extension rod (602) is fixed to the support spring (603) that is fixed to the extension block (601). The right side wall of the inner cavity of the extension block (601) is fixed to the sensing button (604).
2. The plasma spraying fixture according to claim 1, characterized in that: The clamping assembly (9) includes a mounting frame (901), a clamping plate (902), two positioning rods (903) and two positioning springs (904). The mounting frame (901) is fixed to the push rod (8) and the extension rod (602) respectively. The opposite side of the two mounting frames (901) is inserted into the clamping plate (902). The upper and lower sides of the mounting frame (901) are slidably connected to the positioning rods (903) inserted into the clamping plate (902). The positioning rods (903) and the mounting frame (901) are fixed together with the positioning springs (904).
3. The plasma spraying fixture according to claim 1, characterized in that: The drive rod (3) is a bidirectional threaded screw, and the moving block (4) has a threaded hole inside that is compatible with the drive rod (3).
4. The plasma spraying fixture according to claim 1, characterized in that: The outer surface of the movable block (4) is fixed with a stabilizing block (12), and the inside of the workbench (1) is provided with a stabilizing groove that is compatible with the stabilizing block (12).
5. The plasma spraying fixture according to claim 1, characterized in that: The bottom of the workbench (1) is fixed with a base (10), and the bottom of the base (10) is fixed with a rubber pad.
6. The plasma spraying fixture according to claim 1, characterized in that: A fixed bearing (11) is fixed to the left side wall of the inner cavity of the workbench (1), and the interior of the fixed bearing (11) is fixed to the drive rod (3).
7. The plasma spraying fixture according to claim 1, characterized in that: The extension rod (602) has sliding blocks fixed on both its upper and lower sides, extending through to the outside of the extension block (601). The extension block (601) has sliding holes inside that are slidably connected to the sliding blocks.
8. The plasma spraying fixture according to claim 1, characterized in that: The outer surface of the push rod (8) is fixed with a positioning block, and the interior of the moving plate (5) on the left side is provided with a positioning groove that is slidably connected to the positioning block.
Citation Information
Patent Citations
Clamp for plasma spraying
CN219377602U