A multi-angle rotating shielding fixture for drill bits used in PVD coating

Abstract

This utility model relates to the technical field of drill bit processing, and in particular to a multi-angle rotating masking fixture for PVD coating of drill bits. It includes a support base, a first drive motor fixedly installed inside the support base, a support rod fixedly connected to the output end of the first drive motor, and a first mounting plate fixedly installed on the outer wall of the support rod. This multi-angle rotating masking fixture for PVD coating, through the arrangement of the support base, first drive motor, support rod, first mounting plate, first synchronous motor, first connecting shaft, rotating seat, connecting frame, moving plate, and masking plate, allows the first drive motor to rotate the support rod during vapor deposition, while the first synchronous motor simultaneously rotates the rotating seat. At this time, the drill bit rotates on its own axis and revolves around the center of the support rod, with the rotation and revolution directions being opposite. This multi-angle rotation improves the uniformity of the coating and enhances the performance of the drill bit.

Description

Technical Field

[0001] This utility model relates to the technical field of drill bit processing, and in particular to a multi-angle rotating shielding fixture for PVD coating of drill bits. Background Technology

[0002] Drill bits are the most widely used hole-making tools, mainly used for drilling holes in materials such as metal, wood, and plastic. Their structural design and working principle enable them to cut efficiently and remove chips. To improve the performance of drill bits, a vapor deposition process is usually used to form a PVD coating on their surface. The PVD coating comprehensively improves the wear resistance, high temperature resistance, and cutting stability of the drill bit by "strengthening the surface and protecting the substrate". When forming the PVD coating, it is necessary to pay attention to the fact that some areas should not be coated, otherwise it will affect the performance of the drill bit. Therefore, a multi-angle rotating masking tool for PVD coating of drill bits is particularly needed.

[0003] However, most existing drill bit masking fixtures used for PVD coatings cannot allow the drill bit to rotate at multiple angles, and the uneven formation of the PVD coating will affect the performance of the drill bit.

[0004] To address the aforementioned issues, a search revealed a patent with publication number CN 216910690 U, which discloses a painting device for PDC drill bits. The patent states that "existing methods of painting PDC drill bits involve manually holding and rotating the drill bit to ensure comprehensive painting. This method cannot guarantee the paint is completely dry during manual rotation, and workers are prone to getting paint on their skin, potentially causing skin damage. Furthermore, manual operation may damage the paint on the drill bit, affecting the quality of subsequent painting. After painting, the PDC drill bit needs to be moved to a drying oven for drying." During movement, the paint on the surface of the PDC drill bit is easily scratched, and the process is time-consuming and inefficient. This invention places the PDC drill bit inside a groove, then activates a second motor. The second motor rotates, driving a double-headed spiral rod. Since the double-headed spiral rod is threadedly connected to two sets of limiting blocks, and these blocks are further limited by grooves inside the base plate, the rotation of the spiral rod moves the two sets of limiting blocks until the bottom of the PDC drill bit is clamped. A pulling force is then applied to the fixing rod, causing it to move laterally along the limiting groove. The fixing blocks move synchronously under the action of the fixing rod, and the spring pulls on the fixing blocks. The spring extends and stores power, mounting the base plate at the top of the conveyor belt. This allows the locking block to enter the base plate, releasing the tension on the fixing rod. The spring returns to its initial state, and the fixing block, under the spring's force, returns to its initial position. The fixing rod, driven by the fixing block, moves laterally along the limiting groove and passes through the locking block. This allows the PDC drill bit to be fixed during spraying, preventing scratches on the surface paint during manual painting and thus affecting the later use of the PDC drill bit. This invention also utilizes a first motor, which rotates a drum, causing the conveyor belt to roll. The rolling conveyor belt then drives the fixing assembly to move, thus... The PDC drill bit moves from one end of the device to the other, completing the spraying process during this movement. This avoids damage to the surface paint that can occur during manual painting. The paint is extracted from the paint tank by a spray pump and sprayed out of the nozzle through a transport pipe, thus painting the PDC drill bit as it moves to the bottom of the nozzle. After painting, the drying chamber dries the PDC drill bit with drying gas sprayed from the air jet. This automatic painting process increases work efficiency and avoids the paint being easily wiped off the surface during the movement of the PDC drill bit. However, the drill bit cannot rotate at multiple angles, resulting in uneven coating formation, which can affect the performance of the drill bit.

[0005] In light of this, in-depth research into the aforementioned issues led to the creation of this case. Utility Model Content

[0006] The purpose of this invention is to provide a multi-angle rotating shielding fixture for PVD coating drill bits, in order to solve the problem mentioned in the background art that most existing multi-angle rotating shielding fixtures for PVD coating drill bits cannot allow the drill bit to rotate at multiple angles, resulting in uneven PVD coating formation and affecting the performance of the drill bit.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a multi-angle rotating masking fixture for PVD coating drill bits, comprising a support base, a first drive motor fixedly installed inside the support base, a support rod fixedly connected to the output end of the first drive motor, a first mounting plate fixedly installed on the outer wall of the support rod, a first synchronous motor fixedly installed on the lower surface of the first mounting plate, a first connecting shaft fixedly connected to the output end of the first synchronous motor, a rotating base fixedly connected to the other end of the first connecting shaft, a second drive motor fixedly installed inside the rotating base, a second connecting shaft fixedly connected to the output end of the second drive motor, and a rotating base fixedly connected to the other end of the second connecting shaft. A rotating block has a first connecting column fixedly mounted on its upper surface. A connecting frame is connected to the outer wall of the first connecting column via a bearing. A second connecting column is connected to the other end of the connecting frame via a bearing. A movable plate is fixedly connected to one end of the second connecting column. A shielding plate is fixedly mounted on the upper surface of the movable plate. A second mounting plate is fixedly mounted on the outer wall of the support rod. A cylinder is fixedly mounted on the upper surface of the second mounting plate. A lifting plate is fixedly connected to the output end of the cylinder. A connecting shell is fixedly mounted on the lower surface of the lifting plate. A second synchronous motor is fixedly mounted inside the connecting shell. A drive shaft is fixedly connected to the output end of the second synchronous motor. A shielding block is fixedly mounted on the other end of the drive shaft.

[0008] Preferably, the first mounting plate forms a rotating structure with the support base via a support rod, and the rotating block forms a rotating structure with the rotating base via a second connecting shaft.

[0009] Preferably, a slider is fixedly installed on the lower surface of the movable plate, and a guide rail is fixedly installed on the upper surface of the rotating seat.

[0010] Preferably, the slider and the guide rail form a sliding structure.

[0011] Preferably, the lifting plate forms a lifting structure with the second mounting plate via a cylinder.

[0012] Preferably, the shielding block forms a rotating structure with the connecting shell via a drive shaft.

[0013] Preferably, the first synchronous motor and the second synchronous motor have the same rotational speed, and the support rod and the first connecting shaft rotate in opposite directions.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows: This multi-angle rotating masking fixture for PVD coating drill bits, through the arrangement of a support base, a first drive motor, a support rod, a first mounting plate, a first synchronous motor, a first connecting shaft, a rotating base, a second drive motor, a second connecting shaft, a rotating block, a first connecting column, a connecting frame, a second connecting column, a moving plate, and masking plates, allows the drill bit to be placed between two masking plates during vapor deposition. The second drive motor causes the second connecting shaft to rotate, carrying the rotating block. Under the action of the connecting frame, the masking plates move towards the drill bit simultaneously, fixing and masking the parts of the drill bit that do not need to be coated. At the same time, the cylinder lowers the lifting plate, and the masking block masks the transverse cutting edge of the drill bit. During vapor deposition, the first drive motor rotates the support rod, and the first synchronous motor rotates the rotating base. At this time, the drill bit rotates on its own axis and also revolves around the center of the support rod. The rotation and revolution are in opposite directions. The multi-angle rotation improves the uniformity of the coating and enhances the performance of the drill bit. Attached Figure Description

[0015] Figure 1 This is a side view of the appearance structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the structure in which the support base and the drive motor of this utility model cooperate with each other;

[0017] Figure 3 This is a schematic diagram of the cooperation structure between the second connecting shaft and the rotating block of this utility model;

[0018] Figure 4 This is a schematic diagram of the interaction between the rotating block and the first connecting column of this utility model;

[0019] Figure 5 This is a schematic diagram of the structure of the connecting shell and the second synchronous motor of this utility model.

[0020] In the diagram: 1. Support base; 2. First drive motor; 3. Support rod; 4. First mounting plate; 5. First synchronous motor; 6. First connecting shaft; 7. Rotary seat; 8. Second drive motor; 9. Second connecting shaft; 10. Rotating block; 11. First connecting column; 12. Connecting frame; 13. Second connecting column; 14. Moving plate; 15. Shielding plate; 16. Slider; 17. Guide rail; 18. Second mounting plate; 19. Cylinder; 20. Lifting plate; 21. Connecting shell; 22. Second synchronous motor; 23. Drive shaft; 24. Shielding block. Detailed Implementation

[0021] 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.

[0022] Please see Figure 1-5This utility model provides a technical solution: a multi-angle rotating masking fixture for PVD coating drill bits, including a support base 1, a first drive motor 2 fixedly installed inside the support base 1, a support rod 3 fixedly connected to the output end of the first drive motor 2, a first mounting plate 4 fixedly installed on the outer wall of the support rod 3, a first synchronous motor 5 fixedly installed on the lower surface of the first mounting plate 4, a first connecting shaft 6 fixedly connected to the output end of the first synchronous motor 5, a rotating base 7 fixedly connected to the other end of the first connecting shaft 6, a second drive motor 8 fixedly installed inside the rotating base 7, a second connecting shaft 9 fixedly connected to the output end of the second drive motor 8, and the other end of the second connecting shaft 9... A rotating block 10 is fixedly connected. A first connecting column 11 is fixedly installed on the upper surface of the rotating block 10. A connecting frame 12 is connected to the outer wall of the first connecting column 11 by a bearing. A second connecting column 13 is connected to the other end of the connecting frame 12 by a bearing. A moving plate 14 is fixedly connected to one end of the second connecting column 13. A shielding plate 15 is fixedly installed on the upper surface of the moving plate 14. A second mounting plate 18 is fixedly installed on the outer wall of the support rod 3. A cylinder 19 is fixedly installed on the upper surface of the second mounting plate 18. A lifting plate 20 is fixedly connected to the output end of the cylinder 19. A connecting shell 21 is fixedly installed on the lower surface of the lifting plate 20. A second synchronous motor 22 is fixedly installed inside the connecting shell 21. The output end of the second synchronous motor 22 is fixedly connected to the drive shaft 23, and the other end of the drive shaft 23 is fixedly mounted with a shielding block 24. Through the arrangement of the support base 1, the first drive motor 2, the support rod 3, the first mounting plate 4, the first synchronous motor 5, the first connecting shaft 6, the rotating base 7, the second drive motor 8, the second connecting shaft 9, the rotating block 10, the first connecting column 11, the connecting frame 12, the second connecting column 13, the moving plate 14, the shielding plate 15, the second mounting plate 18, the cylinder 19, the lifting plate 20, the connecting shell 21, the second synchronous motor 22, the drive shaft 23, and the shielding block 24, the drill bit is placed between the two shielding plates 15 during vapor deposition. 8. The second connecting shaft 9 rotates the rotating block 10. Under the action of the connecting frame 12, the shielding plate 15 moves towards the drill bit. The shielding plate 15 fixes and shields the part of the drill bit that does not need to be coated. At the same time, the cylinder 19 lowers the lifting plate 20, and the shielding block 24 shields the transverse cutting edge of the drill bit. During vapor deposition, the first drive motor 2 rotates the support rod 3. At the same time, the first synchronous motor 5 and the second synchronous motor 22 make the rotating seat 7 and the shielding block 24 rotate synchronously. At this time, the drill bit will rotate on its own axis and revolve around the center of the support rod 3. The rotation and revolution are in opposite directions. The multi-angle rotation improves the uniformity of the coating and the performance of the drill bit.

[0023] Furthermore, the first mounting plate 4 forms a rotating structure with the support base 1 via the support rod 3, and the rotating block 10 forms a rotating structure with the rotating base 7 via the second connecting shaft 9. With the support rod 3 in place, the first mounting plate 4 can rotate with the support rod 3 when it rotates, thereby causing the drill bit to revolve.

[0024] Furthermore, a slider 16 is fixedly installed on the lower surface of the movable plate 14, and a guide rail 17 is fixedly installed on the upper surface of the rotating seat 7. With the setting of the movable plate 14, the movable plate 14 can move horizontally with the shielding plate 15, so that the shielding plate 15 is fixed and shields the drill bit.

[0025] Furthermore, the slider 16 and the guide rail 17 form a sliding structure. With the slider 16 and the guide rail 17, when the moving plate 14 moves horizontally, the slider 16 will slide on the guide rail 17. The slider 16 can assist and limit the movement of the moving plate 14.

[0026] Furthermore, the lifting plate 20 forms a lifting structure with the second mounting plate 18 via the cylinder 19. With the lifting plate 20, the shielding block 24 will be lifted and lowered along with the lifting plate 20.

[0027] Furthermore, the shielding block 24 forms a rotating structure with the connecting shell 21 via the drive shaft 23. By setting the shielding block 24, the shielding block 24 can shield the chisel edge of the drill bit, so that no coating forms on the chisel edge, thus ensuring the performance of the drill bit.

[0028] Furthermore, the first synchronous motor 5 and the second synchronous motor 22 have the same rotation speed, and the support rod 3 and the first connecting shaft 6 rotate in opposite directions. By setting the first synchronous motor 5 and the second synchronous motor 22, the first synchronous motor 5 and the second synchronous motor 22 can make the rotating seat 7 and the shielding block 24 rotate synchronously, thus ensuring the shielding effect.

[0029] Working principle: During vapor deposition, the drill bit is placed between two shielding plates 15. The second drive motor 8 causes the second connecting shaft 9 to rotate the rotating block 10. Under the action of the connecting frame 12, the shielding plates 15 move towards the drill bit. The shielding plates 15 fix and shield the parts of the drill bit that do not need to be coated. At the same time, the cylinder 19 lowers the lifting plate 20, and the shielding block 24 shields the transverse cutting edge of the drill bit. During vapor deposition, the first drive motor 2 causes the support rod 3 to rotate. At the same time, the first synchronous motor 5 and the second synchronous motor 22 cause the rotating seat 7 and the shielding block 24 to rotate synchronously. At this time, the drill bit rotates on its own axis and also revolves around the center of the support rod 3. The rotation and revolution are in opposite directions.

[0030] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A multi-angle rotating shielding fixture for PVD coating of drill bits, comprising a support base (1), characterized in that: A first drive motor (2) is fixedly installed inside the support base (1). A support rod (3) is fixedly connected to the output end of the first drive motor (2). A first mounting plate (4) is fixedly installed on the outer wall of the support rod (3). A first synchronous motor (5) is fixedly installed on the lower surface of the first mounting plate (4). A first connecting shaft (6) is fixedly connected to the output end of the first synchronous motor (5). A rotating seat (7) is fixedly connected to the other end of the first connecting shaft (6). A second drive motor (8) is fixedly installed inside the rotating seat (7). A second connecting shaft (9) is fixedly connected to the output end of the second drive motor (8). A rotating block (10) is fixedly connected to the other end of the second connecting shaft (9). A first connecting column (11) is fixedly installed on the upper surface of the rotating block (10). A connecting frame (12) is connected to the outer wall bearing. A second connecting column (13) is connected to the other end of the connecting frame (12). A moving plate (14) is fixedly connected to one end of the second connecting column (13). A shielding plate (15) is fixedly installed on the upper surface of the moving plate (14). A second mounting plate (18) is fixedly installed on the outer wall of the support rod (3). A cylinder (19) is fixedly installed on the upper surface of the second mounting plate (18). A lifting plate (20) is fixedly connected to the output end of the cylinder (19). A connecting shell (21) is fixedly installed on the lower surface of the lifting plate (20). A second synchronous motor (22) is fixedly installed inside the connecting shell (21). A transmission shaft (23) is fixedly connected to the output end of the second synchronous motor (22). A shielding block (24) is fixedly installed on the other end of the transmission shaft (23).

2. The drill bit multi-angle rotation shielding fixture for PVD coating according to claim 1, characterized in that: The first mounting plate (4) forms a rotating structure with the support base (1) via the support rod (3), and the rotating block (10) forms a rotating structure with the rotating base (7) via the second connecting shaft (9).

3. The drill bit multi-angle rotating shielding fixture for PVD coating according to claim 1, characterized in that: A slider (16) is fixedly installed on the lower surface of the movable plate (14), and a guide rail (17) is fixedly installed on the upper surface of the rotating seat (7).

4. A multi-angle rotating shielding fixture for drill bits used in PVD coating according to claim 3, characterized in that: The slider (16) and the guide rail (17) form a sliding structure.

5. A multi-angle rotating shielding fixture for drill bits used in PVD coating according to claim 1, characterized in that: The lifting plate (20) forms a lifting structure with the second mounting plate (18) via the cylinder (19).

6. The drill bit multi-angle rotating shielding fixture for PVD coating according to claim 1, characterized in that: The shielding block (24) forms a rotating structure with the connecting shell (21) via the drive shaft (23).

7. A multi-angle rotating shielding fixture for drill bits used in PVD coating according to claim 1, characterized in that: The first synchronous motor (5) and the second synchronous motor (22) have the same rotation speed, and the support rod (3) and the first connecting shaft (6) rotate in opposite directions.

Images