Surface sand blasting and grinding device for PVD cutter production

Abstract

The utility model relates to the technical field of PVD cutter production and machining equipment, and discloses a surface sand blasting and grinding device for PVD cutter production, which comprises a machine base and a sand blasting box body, the sand blasting box body is located on one side of the machine base and covers part of a machine body of the machine base, an object placing table is arranged on the side wall of the machine base, and a rotating ring is rotatably arranged on the object placing table; a plurality of clamping seats are annularly arranged on the rotating ring and used for fixing cutters, a plurality of sand blasting heads are arranged in the sand blasting box body, a sand blasting tank is arranged outside the sand blasting box body, the sand blasting heads are connected with a discharging port of the sand blasting tank through conveying pipes, an inlet and an outlet are formed in the side wall of the sand blasting box body and correspond to the rotating ring, and the clamping seats can enter and exit from the sand blasting box body through the inlet and the outlet. And cleaning brushes are hermetically mounted at the inlet and the outlet of the sand blasting box body. The device has the effect of improving the working safety of operators.

Description

Technical Field

[0001] This application relates to the field of PVD tool production and processing equipment technology, and in particular to a surface sandblasting and grinding device for PVD tool production. Background Technology

[0002] PVD (Physical Vapor Deposition) tools are widely used in machining due to their excellent high hardness, wear resistance, and corrosion resistance. Before implementing the PVD coating process, sandblasting the tool surface is a crucial preliminary step. This treatment effectively removes the oxide layer and burrs from the tool surface and increases surface roughness, thereby significantly improving the adhesion of the subsequent PVD coating, ensuring a strong bond between the coating and the tool substrate, and enhancing the overall performance of the tool.

[0003] Currently, the industry generally uses semi-automatic sandblasting equipment for sandblasting and grinding operations on PVD tool surfaces. However, the loading and unloading of tools in semi-automatic sandblasting equipment requires manual operation. During the sandblasting process, a large number of sand particles collide with the tool surface at high speed, and the resulting fine dust will permeate the working environment. This not only seriously affects the health of operators, but long-term inhalation of dust may also lead to respiratory diseases. It can also damage surrounding production equipment, increasing equipment maintenance costs and failure risks. Utility Model Content

[0004] To improve operator safety, this application provides a surface sandblasting and polishing device for PVD tool production.

[0005] The surface sandblasting and grinding device for PVD tool production provided in this application adopts the following technical solution:

[0006] A surface sandblasting and polishing device for PVD tool production includes a base and a sandblasting chamber. The sandblasting chamber is located on one side of the base and covers part of the base. A platform is provided on the side wall of the base, and a rotating ring is rotatably mounted on the platform. Several clamping seats are arranged around the rotating ring for fixing the tools. Multiple sandblasting heads are provided inside the sandblasting chamber, and a sandblasting tank is provided outside the sandblasting chamber. The sandblasting heads are connected to the outlet of the sandblasting tank through a conveying pipe. An inlet and an outlet are provided on the side wall of the sandblasting chamber corresponding to the rotating ring for the clamping seats to enter and exit the sandblasting chamber. Cleaning brushes are enclosed at both the inlet and outlet of the sandblasting chamber.

[0007] By adopting the above technical solution, the cutting tool is fixed on the clamping seat, and the clamping seat is moved into the sandblasting chamber by a rotating ring. Sand particles from the sandblasting tank are conveyed to the sandblasting head via a delivery pipe and then sprayed at high speed onto the tool surface, achieving sandblasting and polishing. During this process, the rotating ring on the platform can rotate continuously, allowing multiple clamping seats to sequentially pass through the sandblasting area within the sandblasting chamber, completing batch sandblasting operations. Simultaneously, cleaning brushes installed at the inlet and outlet of the sandblasting chamber effectively prevent sand particles and dust from leaking out during the clamping seat's movement, reducing dust pollution in the working environment. This solution not only improves sandblasting efficiency but also significantly improves the operating environment, protects the health of operators, and enhances the surface roughness of the cutting tool, providing a better adhesion foundation for subsequent PVD coatings.

[0008] Optionally, the clamping seat includes a positioning platform, two clamping arc plates and a fixing sleeve. The two clamping arc plates are symmetrically distributed and their arc centers coincide. The cutting tool is inserted between the two clamping arc plates. The fixing sleeve covers the cutting tool and is rotated together on the two clamping arc plates by threads.

[0009] By adopting the above technical solution, the cutting tool is first inserted between two clamping arc plates, and then a fixing sleeve is screwed onto the clamping arc plates to secure the cutting tool. This design can improve the stability of the cutting tool during the clamping process and reduce the possibility of the cutting tool loosening or falling off due to vibration or impact during sandblasting, thereby improving the accuracy and safety of sandblasting.

[0010] Optionally, the outer side of the top end of the clamping arc plate is beveled.

[0011] By adopting the above technical solution, the outer edge of the clamping arc plate is designed with a bevel, which provides good guidance when installing the fixing sleeve, making it easier for the fixing sleeve to accurately align with the external thread of the clamping arc plate. This design not only simplifies the operation steps but also significantly improves the efficiency and stability of tool clamping.

[0012] Optionally, an isolation cover is provided on the platform. The isolation cover is located inside the rotating ring inside the sandblasting chamber, and the isolation cover is connected to the inner wall of the sandblasting chamber.

[0013] By adopting the above technical solution, the isolation cover can effectively prevent dust and sand particles generated during the sandblasting process from spreading to the inside of the rotating ring, reducing wear and contamination on the rotating ring and its internal structure, thereby extending the service life of the device and reducing maintenance costs.

[0014] Optionally, the sandblasting box is equipped with a recovery funnel and a sand recovery box. The collection surface of the recovery funnel is located directly above the sand drop area, and the sand recovery box is located below the recovery funnel. The discharge end of the recovery funnel is connected to the sand recovery box.

[0015] By adopting the above technical solution, the sand particles sprayed during the sandblasting process can be effectively collected, reducing the possibility of sand particles falling randomly and causing the working environment to deteriorate. At the same time, the design of the recovery funnel and the sand particle recovery box realizes the automatic recovery and centralized processing of sand particles, which significantly reduces sand particle waste, improves resource utilization, and reduces the amount of subsequent cleaning work.

[0016] Optionally, a cyclone separator is provided inside the sandblasting box. The cyclone separator is located between the recovery funnel and the sand recovery box. The discharge end of the recovery funnel is connected to the feed end of the side wall of the cyclone separator, and the discharge end at the bottom of the cyclone separator is connected to the sand recovery box.

[0017] By adopting the above technical solution, the cyclone separator is located between the recovery funnel and the sand recovery box. This allows the mixture discharged from the recovery funnel to pass through the centrifugal force of the cyclone separator, concentrating dust within the sandblasting box while the clean sand particles fall into the sand recovery box for recycling. This not only reduces sand waste and lowers production costs but also effectively avoids dust pollution, protecting the health of operators and maintaining a clean working environment.

[0018] Optionally, the side wall of the sandblasting chamber is provided with a viewing window to facilitate observation of the internal situation.

[0019] By adopting the above technical solution, the viewing window allows operators to easily observe the sandblasting process inside the sandblasting chamber from the outside. This design enables real-time monitoring of the internal working status without opening the sandblasting chamber, effectively reducing dust leakage problems that may occur due to frequent opening and closing of the chamber, thereby improving the working environment and ensuring the health and safety of operators.

[0020] Optionally, the platform is equipped with a sensor for detecting whether a tool is clamped on the clamping seat, and the sensor is located outside the sandblasting chamber.

[0021] By adopting the above technical solution, the sensor can automatically detect whether a tool is being held in the clamp, reducing the risk of sandblasting operations without a tool being held, thereby improving the automation level and operational safety of the equipment. At the same time, since the sensor is located outside the sandblasting chamber, it can effectively prevent damage from dust and sand particles, extending its stable operating life.

[0022] In summary, this application includes at least one of the following beneficial technical effects:

[0023] 1. The cutting tool is fixed on the clamping base, and a rotating ring moves the clamping base into the sandblasting chamber. Abrasive particles from the sandblasting tank are conveyed to the sandblasting head via a delivery pipe and then sprayed at high speed onto the tool surface, achieving sandblasting and polishing. During this process, the rotating ring on the platform rotates continuously, allowing multiple clamping bases to sequentially pass through the sandblasting area within the sandblasting chamber, completing batch sandblasting operations. Simultaneously, cleaning brushes installed at the inlet and outlet of the sandblasting chamber effectively prevent abrasive particles and dust from leaking out during the clamping base's movement, reducing dust pollution in the working environment. This solution not only improves sandblasting efficiency but also significantly improves the operating environment, protects the health of operators, and enhances the surface roughness of the cutting tool, providing a better adhesion foundation for subsequent PVD coatings.

[0024] 2. First, insert the tool between the two clamping arc plates. Then, use the fixing sleeve to rotate and fit onto the clamping arc plates, thus securing the tool. This design improves the stability of the tool during clamping and reduces the possibility of the tool loosening or falling off due to vibration or impact during sandblasting, thereby improving the accuracy and safety of sandblasting.

[0025] 3. The outer edge of the clamping arc plate features a bevel design, which provides excellent guidance during the installation of the fixing sleeve, making it easier for the fixing sleeve to accurately align with the external thread of the clamping arc plate. This design not only simplifies the operation process but also significantly improves the efficiency and stability of tool clamping. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the overall structure of an embodiment of this application.

[0027] Figure 2 This is a cross-sectional view illustrating the connection relationship between the servo motor, connecting rod, and rotating ring in the embodiments of this application.

[0028] Figure 3 This is a cross-sectional view illustrating the connection relationship between the positioning stage, the clamping arc plate, and the fixing sleeve in the embodiments of this application.

[0029] Figure 4 This is a cross-sectional view showing the positional relationship between the isolation cover, the cleaning brush, and the barrier baffle in the embodiments of this application.

[0030] Explanation of reference numerals in the attached figures:

[0031] 01. Cutting tool; 1. Base; 11. Cavity; 12. Servo motor; 121. Connecting rod; 2. Sandblasting box; 21. Inlet; 22. Outlet; 23. Cleaning brush; 24. Barrier baffle; 25. Viewing window; 3. Storage platform; 31. Isolation cover; 4. Rotary ring; 5. Clamping seat; 51. Positioning table; 52. Clamping arc plate; 53. Fixing sleeve; 6. Sandblasting can; 61. Sandblasting head; 62. Conveying pipe; 64. Sand recovery box; 65. Recovery pipe; 7. Sensor; 8. Recovery funnel; 9. Cyclone separator. Detailed Implementation

[0032] The following is in conjunction with the appendix Figures 1-4 This application will be described in further detail.

[0033] This application discloses a surface sandblasting and polishing device for PVD tool production.

[0034] Reference Figure 1 and Figure 2 A surface sandblasting and polishing device for PVD tool production includes a base 1 and a sandblasting box 2. The sandblasting box 2 is located on one side of the base 1 and fixes half of the base 1. A platform 3 is fixedly installed on the side wall of the base 1, and a rotating ring 4 is rotatably installed on the platform 3. Several clamping seats 5 for fixing tools 01 are arranged around the rotating ring 4. A sandblasting tank 6 is fixedly installed outside the sandblasting box 2, and multiple sandblasting heads 61 are installed inside the sandblasting box 2. In this embodiment, two are used as an example. Each sandblasting head 61 is connected to the sandblasting tank 6 through the side wall of the sandblasting box 2 via a conveying pipe 62. An inlet 21 and an outlet 22 are opened on the side wall of the sandblasting box 2 corresponding to the rotating ring 4 for the clamping seats 5 to enter and exit the sandblasting box 2.

[0035] Reference Figure 1 and Figure 2 The tool 01 is fixed on the clamping seat 5. The clamping seat 5 is moved into the sandblasting box 2 by the rotating ring 4. The sand particles in the sandblasting tank 6 are transported to the sandblasting head 61 through the conveying pipe 62 and sprayed at high speed onto the surface of the tool 01 to achieve sandblasting and polishing of the tool 01.

[0036] Reference Figure 2 The base 1 has a cavity 11, and a servo motor 12 is fixedly installed in the cavity 11. The output shaft of the servo motor 12 is coaxial with the axis of the rotating ring 4, and the top end of the output shaft of the servo motor 12 is rotatably connected to the platform 3 through a bearing. A connecting rod 121 is fixedly sleeved on the output shaft of the servo motor 12. The connecting rod 121 is parallel to the radial direction of the rotating ring 4, and the end of the connecting rod 121 is fixedly connected to the bottom wall of the rotating ring 4.

[0037] Reference Figure 1In this embodiment, eight clamping seats 5 are evenly distributed on the rotating ring 4, and two sensors 7 are installed on the platform 3 to detect whether the clamping seat 5 is holding the tool 01. The sensors 7 are located outside the sandblasting box 2, and the distance between the two sensors 7 is matched with the distance between the two adjacent clamping seats 5.

[0038] Reference Figure 1 and Figure 3 The clamping base 5 includes a positioning platform 51, clamping arc plates 52, and a fixing sleeve 53. The positioning platform 51 is fixedly installed on the top wall of the rotating ring 4. Two clamping arc plates 52 are symmetrically fixedly distributed on the positioning platform 51, and the outer side of the top of each clamping arc plate 52 is set with an inclined surface. The arc centers of the two clamping arc plates 52 coincide, which makes it easy for the tool 01 to be inserted between the two clamping arc plates 52. The fixing sleeve 53 guides the tool 01 along the inclined surface and is screwed onto the two clamping arc plates 52 for rotation.

[0039] Reference Figure 2 and Figure 4 An isolation cover 31 is fixedly installed on the storage platform 3. The isolation cover 31 is located inside the rotating ring 4 inside the sandblasting box 2, and the isolation cover 31 is fixedly connected to the inner wall of the sandblasting box 2. This helps to prevent dust and sand particles generated during the sandblasting process from spreading to the inside of the rotating ring 4, thereby reducing wear and contamination on the storage platform 3 and its internal structure.

[0040] Reference Figure 1 and Figure 4 The inlet 21 and outlet 22 of the sandblasting chamber 2 are both enclosed and equipped with cleaning brushes 23. A baffle 24 is hinged to the inward-facing side of the cleaning brushes 23 at the inlet 21 and outlet 22 of the sandblasting chamber 2 via a torsion spring. The assembly of the baffle 24 and the torsion spring allows the rotating ring 4 to bring the clamping seat 5 holding the tool 01 into the sandblasting chamber 2 during rotation, while simultaneously preventing the mixture of sand particles and dust from overflowing from the inlet 21 and outlet 22.

[0041] Reference Figure 2 and Figure 4 In addition, a recovery funnel 8, a sand recovery box 64, and a cyclone separator 9 are fixedly installed inside the sand blasting box 2. The collection surface of the recovery funnel 8 is located directly above the sand drop area, the sand recovery box 64 is located below the recovery funnel 8, and the cyclone separator 9 is located between the recovery funnel 8 and the sand recovery box 64. The discharge end of the recovery funnel 8 is connected to the inlet end of the side wall of the cyclone separator 9, and the discharge end at the bottom of the cyclone separator 9 is connected to the sand recovery box 64. The cyclone separator 9 uses the principle of centrifugal force to separate sand particles from dust. The dust is sucked into the exhaust pipe at the top, filtered, and discharged, while the sand particles fall into the sand recovery box 64. The sand recovery box 64 is connected to the inlet of the sand blasting tank 6 through a recovery pipe 65 passing through the side wall of the sand blasting box 2.

[0042] Reference Figure 1 To facilitate observation of the interior of the sandblasting chamber 2, a viewing window 25 is installed on the side wall of the sandblasting chamber 2. The viewing window 25 is made of high-strength transparent material, such as tempered glass or polycarbonate, which has good light transmission and impact resistance.

[0043] The implementation principle of the surface sandblasting and polishing device for PVD tool production in this application embodiment is as follows: First, the tools 01 are inserted one by one between the two clamping arc plates 52 of the clamping seat 5. Then, the fixing sleeve 53 is screwed onto the clamping arc plates 52 to fasten the tool 01. Driven by the servo motor 12, the rotating ring 4 is driven to rotate through the connecting rod 121, which moves the clamping seat 5 into the sandblasting box 2. The sand particles in the sandblasting tank 6 are transported to the sandblasting head 61 through the conveying pipe 62 and sprayed at high speed onto the surface of the tool 01 to achieve sandblasting and polishing of the tool 01.

[0044] During the polishing process, the abrasive particles blasted by the blasting head 61 onto the tool 01 fall into the recovery funnel 8 under the reflection of the isolation cover 31. The mixture discharged from the recovery funnel 8 is subjected to centrifugal force by the cyclone separator 9, with dust being concentrated in the blasting box 2, while the clean abrasive particles fall into the abrasive particle recovery box 64. These particles are then drawn back by the blasting tank 6 through the recovery pipe 65 and transported again to the blasting head 61 via the conveying pipe 62. The blasting head 61 then sprays the abrasive particles at high speed onto the surface of the tool 01, achieving abrasive particle recycling. This improves blasting efficiency while reducing dust pollution in the working environment, significantly improving the operating environment and protecting the health of operators.

[0045] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A surface sand blasting device for PVD tool production, characterized in that The machine includes a base (1) and a sandblasting box (2). The sandblasting box (2) is located on one side of the base (1) and covers part of the machine body of the base (1). A platform (3) is provided on the side wall of the base (1). A rotating ring (4) is rotatably provided on the platform (3). Several clamping seats (5) are provided on the rotating ring (4). The clamping seats (5) are used to fix the cutting tool (01). Multiple sandblasting heads (6) are provided inside the sandblasting box (2). 1) A sandblasting tank (6) is provided outside the sandblasting box (2). The sandblasting head (61) is connected to the outlet of the sandblasting tank (6) through the conveying pipe (62). An inlet (21) and an outlet (22) are provided on the side wall of the sandblasting box (2) corresponding to the rotating ring (4) for several clamping seats (5) to enter and exit the sandblasting box (2). A cleaning brush (23) is installed at both the inlet (21) and the outlet (22) of the sandblasting box (2).

2. The surface sandblasting and polishing device for PVD tool production according to claim 1, characterized in that... The clamping seat (5) includes a positioning platform (51), two clamping arc plates (52) and a fixing sleeve (53). The two clamping arc plates (52) are symmetrically distributed and their arc centers coincide. The cutting tool (01) is inserted between the two clamping arc plates (52). The fixing sleeve (53) is fitted with the cutting tool (01) and is fitted onto the two clamping arc plates (52) by rotating together through the thread.

3. The surface sand blasting and polishing device for PVD cutter production of claim 2, wherein The outer side of the top of the clamping arc plate (52) is set with an inclined surface.

4. The surface sand blasting and polishing device for PVD cutter production of claim 1, wherein An isolation cover (31) is provided on the platform (3). The isolation cover (31) is located inside the rotating ring (4) inside the sandblasting box (2), and the isolation cover (31) is connected to the inner wall of the sandblasting box (2).

5. The surface sand blasting and polishing device for PVD cutter production of claim 1, wherein The sandblasting box (2) is equipped with a recycling funnel (8) and a sand recycling box (64). The collection surface of the recycling funnel (8) is located directly above the sand drop area, and the sand recycling box (64) is located below the recycling funnel (8). The discharge end of the recycling funnel (8) is connected to the sand recycling box (64).

6. The surface sand blasting and polishing device for PVD cutter production of claim 5, wherein A cyclone separator (9) is installed inside the sandblasting box (2). The cyclone separator (9) is located between the recovery funnel (8) and the sand recovery box (64). The discharge end of the recovery funnel (8) is connected to the feed end of the side wall of the cyclone separator (9). The discharge end of the bottom of the cyclone separator (9) is connected to the sand recovery box (64).

7. The surface sand blasting and polishing device for PVD cutter production of claim 1, wherein The side wall of the sandblasting box (2) is provided with a viewing window (25) to facilitate observation of the internal situation.

8. The surface sandblasting and polishing device for PVD tool production according to claim 1, characterized in that... The platform (3) is equipped with a sensor (7) for detecting whether the tool (01) is clamped on the clamping seat (5). The sensor (7) is located outside the sandblasting box (2).

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