Workpiece rotating clamping device for PVD spraying

Abstract

The application discloses a workpiece rotating clamping device for PVD melting, and belongs to the technical field of PVD melting, which comprises a mounting seat, a clamping assembly, a stabilizing assembly and an auxiliary assembly, the clamping assembly is installed on the upper end of the mounting seat, the stabilizing assembly is installed in the clamping assembly, and the auxiliary assembly is installed in the clamping assembly. The clamping assembly in the application is matched with the roller through the fixing block, so that the clamped workpiece can be conveniently rotated, the workpiece is uniformly contacted with the gas-phase material everywhere, the clamping position of the workpiece is prevented from being shielded and unable to be coated, the coating dead angle of the workpiece is reduced, and uniform coating of the workpiece is realized.

Description

Technical Field

[0001] This invention relates to the field of PVD spraying technology, and more particularly to a workpiece rotation clamping device for PVD spraying. Background Technology

[0002] PVD deposition is a technique that uses physical methods to deposit materials onto the surface of a substrate to form a coating in a vacuum environment. It is mainly used to improve the surface properties of materials, such as hardness, wear resistance, and corrosion resistance, and is widely used in semiconductors, cutting tools, decorative materials and other fields.

[0003] In the prior art, application number CN202223032021.0 discloses a rotating device for spray coating products. The rotating device has a reasonable and simple structure, is easy to use and operate, and can effectively ensure that the spray coating parts are firmly fixed and rotate at a uniform speed, thereby ensuring that the thickness of the spray coating is uniform and consistent, and improving product quality. However, the rotating device clamps the workpiece with an L-shaped clamp. The contact point between the workpiece and the L-shaped clamp is a coating dead angle. Gas cannot circulate in the clamping area, which affects the deposition of coating particles, resulting in some areas of the workpiece not being coated and affecting the integrity of the coating on the workpiece surface. Summary of the Invention

[0004] This invention provides a workpiece rotation clamping device for PVD spraying to solve the technical problem that the inability of gas to circulate in the clamping area affects the deposition of coating particles, resulting in some areas of the workpiece being unable to be coated and affecting the integrity of the coating on the workpiece surface.

[0005] The embodiments of the present invention adopt the following technical solutions: A workpiece rotation clamping device for PVD spraying includes a mounting base and further includes: A clamping assembly, which is mounted on the upper end of the mounting base, is used to clamp and limit the workpiece; The clamping assembly includes: A first double-ended lead screw is rotatably connected inside the mounting base. A slider is threadedly connected to the outer side of the first double-ended lead screw. A clamping arm is fixedly installed on the upper end of the slider. Reinforcing blocks are fixedly installed on the left and right sides of the clamping arm. A fixing block is rotatably connected to the side of the clamping arm near the central axis. A clamping platform is fixedly installed on the side of the fixing block near the central axis. A roller is rotatably connected to the center inside the clamping platform. The lower end of the reinforcing block is welded to the slider.

[0006] Furthermore, one end of the first double-ended lead screw is connected to the output end of an external drive motor, the fixed block is connected to the output end of an external rotary motor, and the rotating end of the roller is connected to the drive motor built into the clamping table. The inner wall of the clamping platform is an arc-shaped structure adapted to the round workpiece, and the outer wall of the roller is wrapped with a wear-resistant rubber layer, which not only avoids scratching the surface of the workpiece, but also increases the friction with the workpiece and prevents slippage.

[0007] Furthermore, it also includes: A stabilizing component is installed inside the clamping component to limit the upper and lower ends of the workpiece and improve clamping stability.

[0008] The stabilizing component includes: A second double-ended lead screw is rotatably connected to the front and rear ends inside the clamping table. One end of the second double-ended lead screw is connected to the drive motor built into the clamping table. A movable block is threadedly connected to the outer side of the second double-ended lead screw. A clamping block is fixedly installed on the side of the movable block near the central axis. A ball is rotatably connected inside the clamping block. The ball can rotate freely inside the clamping block, and the outer wall of the ball is covered with a wear-resistant rubber layer.

[0009] Furthermore, it also includes: An auxiliary component, installed inside the clamping assembly, is used to provide front and rear auxiliary positioning for the workpiece to prevent it from shifting or falling during rotation.

[0010] The auxiliary components include: A hydraulic rod is fixedly installed on the side of the clamping table away from the central axis. A push block is fixedly installed on the side of the hydraulic rod away from the central axis. A slide rod is fixedly installed inside the clamping table at the front and rear ends of the roller. An auxiliary block is slidably connected to the outside of the slide rod. An auxiliary wheel is rotatably connected to the side of the auxiliary block near the central axis. A connecting rod is rotatably connected to the side of the auxiliary block away from the central axis. The other end of the connecting rod is rotatably connected to the push block. The upper and lower ends of the push block are in contact with the fixed block. The other end of the connecting rod is rotatably connected to the push block. The upper and lower ends of the push block are in contact with the inner sidewall of the fixed block. The outer sidewall of the auxiliary wheel is covered with a wear-resistant rubber layer. Several mounting holes are opened at the lower end of the mounting base. The mounting holes are distributed in an array to facilitate the overall fixing of the device to the processing table of the PVD melting equipment and improve the installation stability of the device.

[0011] The above-described at least one technical solution adopted in the embodiments of the present invention can achieve the following beneficial effects: 1. The clamping component in this invention uses a fixed block and a roller to facilitate the rotation of the clamped workpiece, so that all parts of the workpiece are in uniform contact with the gas phase material, avoiding the workpiece clamping area from being blocked and unable to be coated, reducing the coating dead angle of the workpiece, and achieving uniform coating of the workpiece.

[0012] 2. The stabilizing component in this invention uses ball bearings to flexibly limit the upper and lower ends of the workpiece, and the auxiliary component uses auxiliary wheels to elastically limit the front and rear sides of the workpiece. Combined with the initial clamping of the clamping component, the limiting effect on the workpiece is improved. Moreover, the ball bearings and auxiliary wheels can rotate synchronously with the workpiece, ensuring clamping stability without affecting the rotation of the workpiece, effectively preventing the workpiece from shifting, shaking, or falling during rotation.

[0013] 3. The reinforcing blocks on both sides of the clamping arm in this invention improve the overall structural strength of the device and can adapt to round workpieces of different weights; the wear-resistant rubber layer on the outside of the rollers, balls and auxiliary wheels not only avoids scratching the surface of the workpiece, but also adapts to round workpieces of different specifications, thus improving the applicability of the device.

[0014] 4. The auxiliary component in this invention, through the cooperation of the auxiliary block and the slide bar, achieves further limiting and locking of the workpiece, ensuring the stability of the workpiece during rotation and preventing the workpiece from falling and affecting the coating effect. Attached Figure Description

[0015] The accompanying drawings, which are included to provide a further understanding of the invention and form part of this invention, illustrate exemplary embodiments of the invention and are used to explain the invention, but do not constitute an undue limitation of the invention. In the drawings: Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the overall cross-sectional structure of the present invention; Figure 3 This is a schematic diagram of the cross-sectional structure of the clamping component in this invention; Figure 4 This is a schematic diagram of the cross-sectional structure of the clamping platform in this invention; Figure 5 This is a schematic diagram of the cross-sectional structure of the clamping block in this invention.

[0016] Figure Labels 1. Mounting base; 2. Clamping assembly; 201. First double-ended lead screw; 202. Slider; 203. Clamping arm; 204. Reinforcing block; 205. Fixing block; 206. Clamping platform; 207. Roller; 3. Stabilizing assembly; 301. Second double-ended lead screw; 302. Movable block; 303. Clamping block; 304. Ball bearing; 4. Auxiliary assembly; 401. Hydraulic rod; 402. Push block; 403. Slide rod; 404. Auxiliary block; 405. Auxiliary wheel; 406. Connecting rod. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of this invention clearer, the technical solutions of this invention will be clearly and completely described below in conjunction with specific embodiments and corresponding drawings. Obviously, the described embodiments are only a part of the embodiments of this invention, and not all of them. Based on the embodiments of this invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this invention.

[0018] The technical solutions provided by the various embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0019] like Figures 1 to 5 As shown, this embodiment of the invention provides a workpiece rotation clamping device for PVD spraying, including a mounting base 1, a clamping assembly 2, a stabilizing assembly 3, and an auxiliary assembly 4. The clamping assembly 2 is mounted on the upper end of the mounting base 1 and is used to clamp and limit the workpiece. The stabilizing assembly 3 is mounted inside the clamping assembly 2 and is used to limit the upper and lower ends of the workpiece to improve clamping stability. The auxiliary assembly 4 is mounted inside the clamping assembly 2 and is used to provide auxiliary front and rear side limits for the workpiece to prevent the workpiece from shifting or falling during rotation.

[0020] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, preferably, the clamping assembly 2 includes: a first double-ended lead screw 201 rotatably connected inside the mounting base 1; a slider 202 threadedly connected to the outer side of the first double-ended lead screw 201; a clamping arm 203 fixedly mounted on the upper end of the slider 202; reinforcing blocks 204 fixedly mounted on the left and right sides of the clamping arm 203; a fixing block 205 rotatably connected to the side of the clamping arm 203 near the central axis; a clamping platform 206 fixedly mounted on the side of the fixing block 205 near the central axis; a roller 207 rotatably connected to the center inside the clamping platform 206; the lower end of the reinforcing block 204 welded to the slider 202; one end of the first double-ended lead screw 201 being driven to the output end of an external drive motor; the fixing block 205 being driven to the output end of an external rotary motor; the rotating end of the roller 207 being driven to the drive motor built into the clamping platform 206; the inner sidewall of the clamping platform 206 having an arc-shaped structure adapted to a circular workpiece; and the outer sidewall of the roller 207 being covered with a wear-resistant rubber layer.

[0021] When performing PVD spraying on a circular workpiece, the motor on the right side of the mounting base 1 is started. The right side of the first double-ended lead screw 201 installed inside the mounting base 1 is connected to the motor output. As the motor starts, it drives the first double-ended lead screw 201 to rotate inside the mounting base 1, thereby causing the slider 202 to slide towards the center. The clamping arm 203 simultaneously slides from both sides towards the center, and the fixing block 205 slides with the clamping arm 203, thereby causing the clamping table 206 to slide towards the center. Then, the circular workpiece is placed between the clamping tables 206. Subsequently, the first double-ended lead screw 201 rotates again, causing the clamping table 206 to move closer to the center, achieving clamping and limiting of the workpiece. At the same time, the roller 207 on the clamping table 206 is in contact with the side of the circular workpiece. When the workpiece is subjected to PVD spraying coating, a motor is installed inside the clamping table 206, and the upper end of the roller 207 is connected to the motor output. The motor inside the clamping table 206 is started, driving the roller 207 to rotate. As the roller 207 rotates, the workpiece rotates synchronously between the clamping tables 206, thereby reducing the coating dead angle of the workpiece. The wear-resistant rubber layer wrapped on the roller 207 increases the friction between the roller 207 and the workpiece, making it easier to drive the workpiece to rotate. At the same time, a motor is installed on the side of the clamping arm 203 away from the central axis, and the side of the fixing block 205 away from the central axis is connected to the output end of the motor. Starting the motor on the clamping arm 203 drives the fixing block 205 to rotate, thereby driving the workpiece clamped between the clamping tables 206 to rotate, further reducing the coating dead angle of the workpiece. Through the cooperation of the fixing block 205 and the roller 207, the clamped workpiece is driven to rotate, so that all parts of the workpiece come into contact with the vapor phase material, achieving uniform coating of the workpiece and avoiding the workpiece being blocked and unable to be coated, thus reducing the coating dead angle of the workpiece.

[0022] Preferably, the stabilizing component 3 includes: a second double-ended lead screw 301 rotatably connected to the front and rear ends inside the clamping table 206, one end of the second double-ended lead screw 301 being connected to a drive motor built into the clamping table 206, a movable block 302 being threadedly connected to the outer side of the second double-ended lead screw 301, a clamping block 303 being fixedly installed on the side of the movable block 302 near the central axis, a ball bearing 304 being rotatably connected inside the clamping block 303, the ball bearing 304 being able to rotate freely inside the clamping block 303, and the outer wall of the ball bearing 304 being covered with a wear-resistant rubber layer.

[0023] The workpiece is clamped and limited by the clamping platforms 206 on both sides. A motor is installed at the upper end of the clamping platform 206, and the upper end of the second double-ended lead screw 301 is connected to the output end of the motor. When the motor inside the clamping platform 206 is started, the second double-ended lead screw 301 is driven to rotate, thereby driving the movable block 302 to slide towards the center, so that the clamping block 303 slides synchronously. This allows the ball bearings 304 on the clamping block 303 to fit against the upper and lower ends of the workpiece, achieving further limitation of the workpiece and ensuring the stability of the workpiece during clamping. At the same time, when the workpiece rotates between the clamping platforms 206, the ball bearings 304 fit against the workpiece and rotate synchronously inside the clamping block 303. The wear-resistant rubber layer on the ball bearings increases the service life of the roller bearings 304, ensuring the stability of the workpiece during clamping and the stability of the workpiece during rotation.

[0024] Preferably, the auxiliary component 4 includes: a hydraulic rod 401 fixedly installed on the side of the clamping table 206 away from the central axis; a push block 402 fixedly installed on the side of the hydraulic rod 401 away from the central axis; a slide rod 403 fixedly installed inside the clamping table 206 at the front and rear ends of the roller 207; an auxiliary block 404 slidably connected to the outside of the slide rod 403; an auxiliary wheel 405 rotatably connected to the side of the auxiliary block 404 near the central axis; a connecting rod 406 rotatably connected to the side of the auxiliary block 404 away from the central axis; the other end of the connecting rod 406 rotatably connected to the push block 402; the upper and lower ends of the push block 402 are in contact with the fixed block 205; the other end of the connecting rod 406 is rotatably connected to the push block 402; the upper and lower ends of the push block 402 are in contact with the inner sidewall of the fixed block 205; the outer sidewall of the auxiliary wheel 405 is covered with a wear-resistant rubber layer; and a plurality of mounting holes are opened at the lower end of the mounting base 1, which are distributed in an array.

[0025] The rotating clamping device is installed into the PVD coating device through the mounting hole at the lower end of the mounting base 1. After the workpiece is clamped by the clamping assembly 2, the hydraulic rod 401 on the fixed block 205 is activated. The hydraulic rod 401 pushes the push block 402 to slide outward. The upper and lower ends of the push block 402 are in contact with the fixed block 205 to ensure the stability of the push block 402 when sliding. As the push block 402 slides, it gradually pulls the connecting rod 406. The other end of the connecting rod 406 is rotatably connected to the auxiliary block 404. As the connecting rod 406 is pulled, it drives the auxiliary block 404 to slide on the slide rod 403, so that the auxiliary wheels 405 on the front and rear auxiliary blocks 404 are in contact with the workpiece, thereby achieving further limiting and locking of the workpiece, ensuring the stability of the workpiece when rotating, and preventing the workpiece from falling and affecting the coating effect.

[0026] The work process is as follows: First, start the motor on the right side of the mounting base 1. The right side of the first double-ended lead screw 201 installed inside the mounting base 1 is connected to the motor output end. As the motor starts, it drives the first double-ended lead screw 201 to rotate inside the mounting base 1, thereby driving the slider 202 to slide towards the center. The clamping arm 203 follows synchronously from both sides towards the center. The fixing block 205 follows the clamping arm 203 to slide, thereby driving the clamping table 206 to slide towards the center. Then, place the circular workpiece between the clamping tables 206. Then, the first double-ended lead screw 201 rotates again, driving the clamping table 206 to move closer to the center, thereby achieving clamping and limiting of the workpiece.

[0027] Next, the motor inside the clamping table 206 is started, which drives the second double-headed lead screw 301 to rotate, thereby driving the movable block 302 to slide towards the center, so that the clamping block 303 slides synchronously, and the balls 304 on the clamping block 303 fit with the upper and lower ends of the workpiece, thereby achieving further limiting of the workpiece.

[0028] Then, the hydraulic rod 401 on the fixed block 205 is activated. The hydraulic rod 401 pushes the push block 402 to slide outward. The upper and lower ends of the push block 402 are in contact with the fixed block 205 to ensure the stability of the push block 402 when sliding. As the push block 402 slides, it gradually pulls the connecting rod 406. The other end of the connecting rod 406 is rotatably connected to the auxiliary block 404. As the connecting rod 406 is pulled, it drives the auxiliary block 404 to slide on the slide rod 403, so that the auxiliary wheels 405 on the front and rear auxiliary blocks 404 are in contact with the workpiece, thereby achieving further limiting and locking of the workpiece.

[0029] Finally, the motor inside the clamping table 206 is started, driving the roller 207 to rotate. As the roller 207 rotates, the workpiece rotates synchronously between the clamping tables 206. At the same time, the auxiliary wheel 405 on the auxiliary block 404 is in contact with the circular workpiece, and the auxiliary wheel 405 rotates synchronously inside the auxiliary block 404 to ensure the stability of the circular workpiece during rotation. Meanwhile, a motor is installed on the side of the clamping arm 203 away from the central axis, and the side of the fixing block 205 away from the central axis is connected to the output end of the motor. Starting the motor on the clamping arm 203 drives the fixing block 205 to rotate, thereby driving the workpiece clamped between the clamping tables 206 to rotate, further reducing the coating dead angle of the workpiece.

[0030] The above are merely embodiments of the present invention and are not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principle of the present invention should be included within the scope of the claims of the present invention.

Claims

1. A workpiece rotation clamping device for PVD spraying, characterized in that, Including the mounting base (1), it also includes: Clamping assembly (2), which is mounted on the upper end of the mounting base (1) and is used to clamp and limit the workpiece; The clamping assembly (2) includes: A first double-ended lead screw (201) is rotatably connected inside the mounting base (1). A slider (202) is threadedly connected to the outside of the first double-ended lead screw (201). A clamping arm (203) is fixedly installed on the upper end of the slider (202). Reinforcing blocks (204) are fixedly installed on the left and right sides of the clamping arm (203). A fixing block (205) is rotatably connected to the side of the clamping arm (203) near the central axis. A clamping platform (206) is fixedly installed on the side of the fixing block (205) near the central axis. A roller (207) is rotatably connected to the center inside the clamping platform (206). The lower end of the reinforcing block (204) is welded to the slider (202).

2. The workpiece rotating clamping device for PVD spraying according to claim 1, characterized in that, One end of the first double-ended lead screw (201) is connected to the output end of an external drive motor, the fixed block (205) is connected to the output end of an external rotary motor, and the rotating end of the roller (207) is connected to the drive motor built into the clamping table (206). The inner wall of the clamping table (206) is an arc-shaped structure adapted to the circular workpiece, and the outer wall of the roller (207) is covered with a wear-resistant rubber layer.

3. The workpiece rotating clamping device for PVD spraying according to claim 1, characterized in that, Also includes: The stabilizing component (3) is installed inside the clamping component (2) and is used to limit the upper and lower ends of the workpiece to improve the clamping stability.

4. The workpiece rotating clamping device for PVD spraying according to claim 3, characterized in that, The stabilizing component (3) includes: A second double-ended lead screw (301) is rotatably connected to the front and rear ends inside the clamping table (206). One end of the second double-ended lead screw (301) is connected to the drive motor built into the clamping table (206). A movable block (302) is threadedly connected to the outer side of the second double-ended lead screw (301).

5. A workpiece rotating clamping device for PVD spraying according to claim 4, characterized in that: The movable block (302) is fixedly installed with a clamping block (303) on the side near the central axis. A ball (304) is rotatably connected inside the clamping block (303). The ball (304) can rotate freely inside the clamping block (303), and the outer wall of the ball (304) is wrapped with a wear-resistant rubber layer.

6. The workpiece rotating clamping device for PVD spraying according to claim 1, characterized in that, Also includes: The auxiliary component (4) is installed inside the clamping component (2) and is used to provide front and rear auxiliary positioning for the workpiece to prevent it from shifting or falling off when rotating.

7. A workpiece rotating clamping device for PVD spraying according to claim 6, characterized in that, The auxiliary component (4) includes: A hydraulic rod (401) is fixedly installed on the side of the clamping table (206) away from the central axis. A push block (402) is fixedly installed on the side of the hydraulic rod (401) away from the central axis. A slide rod (403) is fixedly installed inside the clamping table (206) at the front and rear ends of the roller (207). An auxiliary block (404) is slidably connected to the outside of the slide rod (403).

8. A workpiece rotating clamping device for PVD spraying according to claim 7, characterized in that: The auxiliary block (404) is rotatably connected to an auxiliary wheel (405) on the side closer to the central axis, and a connecting rod (406) is rotatably connected to the side of the auxiliary block (404) away from the central axis. The other end of the connecting rod (406) is rotatably connected to a push block (402), and the upper and lower ends of the push block (402) are in contact with the fixed block (205).

9. A workpiece rotating clamping device for PVD spraying according to claim 8, characterized in that: The other end of the connecting rod (406) is rotatably connected to the push block (402), and the upper and lower ends of the push block (402) are in contact with the inner sidewall of the fixed block (205); the outer sidewall of the auxiliary wheel (405) is covered with a wear-resistant rubber layer.

10. A workpiece rotating clamping device for PVD spraying according to claim 1, characterized in that: The lower end of the mounting base (1) is provided with a plurality of mounting holes, which are arranged in an array.

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