A PVD coating processing fixture for a milling cutter

Abstract

The utility model belongs to the technical field of clamp, specifically a kind of PVD coating processing fixture of milling cutter, including mounting column and cutter disc, the surface of mounting column is equipped with several cutter discs, several milling cutters are installed on the cutter disc;The surface of cutter disc is provided with several installation grooves for installing milling cutter, several receiving grooves that are connected with installation groove are opened in mounting column;Through the structure of design, when installing handle, only milling cutter is pushed into installation groove, the effect of quick installation can be realized, other complex operations are not needed.Simultaneously according to the diameter of different milling cutter, elastic ball is used to push clamping plate, and then the milling cutter of different sizes is quickly adapted.Meanwhile, gasket and buffer pad are used to protect milling cutter handle, reduce the occurrence of knock damage.

Description

Technical Field

[0001] This utility model belongs to the field of fixture technology, specifically a PVD coating processing fixture for milling cutters. Background Technology

[0002] The main purpose of applying PVD (Physical Vapor Deposition) coating to end mills is to improve their performance and service life. During the milling process, the end mill rubs against the workpiece material, which easily causes wear. PVD coatings have extremely high hardness; for example, titanium nitride (TiN) coatings can reach a hardness of over 2000 HV. This can significantly improve the surface hardness of the end mill, making it more wear-resistant, reducing tool wear, and extending tool life.

[0003] When milling cutters undergo PVD coating treatment, they are usually processed in batches. Several milling cutters are mounted on a tool shroud, and then the cutters are secured to the shroud by operators before being pushed into the equipment for PVD coating. Because there are many types of milling cutters with varying diameters, operators must secure each cutter individually according to its diameter. Since a large number of cutters are processed at a time, careful installation and securing can lead to low efficiency and affect milling efficiency.

[0004] Therefore, this utility model provides a PVD coating processing fixture for milling cutters. Utility Model Content

[0005] In order to overcome the shortcomings of the prior art, at least one technical problem raised in the background art is solved.

[0006] The technical solution adopted by this utility model to solve its technical problem is as follows: A PVD coating processing fixture for milling cutters according to this utility model includes a mounting post and a tool disk. A plurality of tool disks are mounted on the surface of the mounting post, and a plurality of milling cutters are mounted on the tool disks. A plurality of mounting slots for mounting milling cutters are opened on the surface of the tool disks. A plurality of receiving slots communicating with the mounting slots are opened in the mounting post. The plurality of receiving slots are symmetrically distributed in pairs around the central axis of the mounting slots. A sliding plate is slidably connected to the receiving slot through an elastic ball. A connecting rod is fixedly installed on one side of the sliding plate. A clamping plate is fixedly installed on the end of the connecting rod away from the sliding plate. A gasket is fixedly installed on one side of the clamping plate. A buffer pad of flexible material is fixedly installed in the mounting slot.

[0007] Furthermore, a guide block is fixedly installed on the top of the clamping plate, and several flexible rolling balls are wedged on the arc-shaped surface of the guide block.

[0008] Furthermore, a connecting pipe connected to the interior is fixedly installed on one side of the elastic ball, and an air guide pipe is fixedly installed on the top of the cutter disc, with the end of the connecting pipe away from the elastic ball connected to the interior of the air guide pipe.

[0009] Furthermore, a hollow fixing ring is fixedly installed at the end of the air guide tube away from the connecting tube. One side of the fixing ring has several air outlet holes that communicate with the interior. A bracket is provided between the fixing ring and the cutter disc.

[0010] Furthermore, a filter screen is fixedly installed inside the air outlet of the fixed ring, and an inclined guide groove is opened inside the fixed ring.

[0011] Furthermore, the two ends of the bracket are respectively engaged with the cutter disc and the fixing ring, the air guide tube is made of rigid material, and the top of the fixing ring is provided with a slot.

[0012] The beneficial effects of this utility model are as follows:

[0013] 1. The PVD coating processing fixture for milling cutters described in this utility model pushes the milling cutter into the mounting slot. The cutter shank pushes two guide blocks away from each other, causing the guide blocks to move the clamping plates and shims together, thus increasing the gap and facilitating the insertion of the cutter shank between the two clamping plates. The ball bearings on the guide blocks assist the movement of the milling cutter. The clamping plates move via a connecting rod and a push plate, and the elastic balls are also compressed. When the cutter shank is fully inserted into the mounting slot, it contacts the buffer pad inside the slot. The buffer pad protects the end of the shank from impact damage. The two clamping plates, under the action of the two elastic balls, consistently hold the cutter shank, stabilizing it. The shims on the clamping plates also buffer and protect the surface of the shank. This designed structure allows for quick installation of the cutter shank simply by pushing the milling cutter into the mounting slot, without any other complex operations. Furthermore, the elastic balls push the clamping plates according to different cutter diameters, enabling rapid adaptation to different cutter sizes. At the same time, shims and buffer pads are used to protect the milling cutter shank and reduce the occurrence of damage.

[0014] 2. The PVD coating processing fixture for milling cutters described in this utility model, when the push plate slides and compresses the elastic ball in the receiving groove, the gas inside the elastic ball, after being compressed, enters the fixed ring through the connecting pipe and the air guide pipe, and is sprayed onto the milling cutter head through several air outlets in the fixed ring, thus achieving auxiliary cleaning of the cutter head. Air cleaning can reduce dust and impurities adhering to the cutter head during the production, transportation, or initial processing of the milling cutter, thereby improving the effect of subsequent PVD coating treatment. The air outlets are designed with an inclined shape to better clean the milling cutter head with air, while the filter screen is installed to reduce the entry of impurities when not in use, blocking impurities in the air outlets and discharging them through the guide groove. Simultaneously, the air guide pipe is designed to be made of a rigid material, which can assist the support in forming the fixed ring. After the milling cutter is installed in the mounting slot, the bracket is pulled out from the retaining ring and the cutter head bracket, and then the bracket is inserted into the slot on the top of the cutter head and fixed so that the top of the bracket is higher than the top of the milling cutter. This makes it easier for the next cutter head to contact the top of the bracket after it is put on the mounting post, and avoids the bottom of the next cutter head from contacting the already installed cutter head, which would cause damage to the cutter head. Attached Figure Description

[0015] The present invention will be further described below with reference to the accompanying drawings.

[0016] Figure 1 This is a three-dimensional structural diagram of the mounting column in this utility model;

[0017] Figure 2 This is a schematic diagram of the structure of the cutting tool in this utility model;

[0018] Figure 3 This utility model Figure 2 A schematic diagram of the structure at point A;

[0019] Figure 4 This is a partial cross-sectional view of the tool disc in this utility model;

[0020] Figure 5 This utility model Figure 4 A schematic diagram of the structure at point B;

[0021] Figure 6 This is a cross-sectional view of the fixing ring in this utility model;

[0022] Figure 7 This utility model Figure 6 A schematic diagram of the structure at point C.

[0023] In the diagram: 1. Mounting post; 2. Tool disc; 3. Mounting slot; 4. Storage slot; 5. Slide plate; 6. Connecting rod; 7. Clamping plate; 8. Gasket; 9. Elastic ball; 10. Buffer pad; 11. Guide block; 12. Rolling ball; 13. Connecting pipe; 14. Air guide pipe; 15. Fixing ring; 16. Air outlet; 17. Filter screen; 18. Flow guide groove; 19. Slot; 20. Bracket. Detailed Implementation

[0024] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0025] like Figures 1 to 7 As shown in the embodiment of this utility model, a PVD coating processing fixture for milling cutters includes a mounting post 1 and a cutter disc 2. A plurality of cutter discs 2 are mounted on the surface of the mounting post 1, and a plurality of milling cutters are mounted on the cutter discs 2. A plurality of mounting grooves 3 for mounting the milling cutters are formed on the surface of the cutter discs 2. A plurality of receiving grooves 4 communicating with the mounting grooves 3 are formed inside the mounting post 1. The receiving grooves 4 are arranged in pairs symmetrically about the central axis of the mounting grooves 3. A sliding plate 5 is slidably connected to the receiving groove 4 via an elastic ball 9. A connecting rod 6 is fixedly mounted on one side of the sliding plate 5. A clamping plate 7 is fixedly mounted on the end of the connecting rod 6 away from the sliding plate 5. A gasket 8 is fixedly mounted on one side of the clamping plate 7. A flexible material buffer pad 10 is fixedly mounted inside the mounting grooves 3. A guide block 11 is fixedly mounted on the top of the clamping plate 7, and a plurality of flexible material rolling balls 12 are wedged onto the arc-shaped surface of the guide block 11.

[0026] During operation, the cutter disc 2 is mounted on the mounting post 1, and the milling cutter to be machined is placed above the mounting groove 3 of the cutter disc 2, so that the shank of the milling cutter contacts the arc-shaped surface of the guide block 11 and the ball bearing 12. By pushing the milling cutter into the mounting groove 3, the shank of the milling cutter pushes the two guide blocks 11 in a direction away from each other. The guide blocks 11 drive the clamping plate 7 and the shim 8 to move together, thereby increasing the gap and facilitating the entry of the milling cutter shank between the two clamping plates 7. The ball bearing 12 on the guide block 11 assists in the movement of the milling cutter. The clamping plate 7 moves through the connecting rod 6 and the push plate, and the elastic ball 9 is also compressed. When the shank of the milling cutter is fully inserted into the mounting groove 3, it will contact the buffer pad 10 in the mounting groove 3. The buffer post acts as a buffer to protect the end of the shank, preventing impact damage to the shank. The two clamping plates 7, under the action of the two elastic balls 9, always hold the cutter shank of the milling cutter, thereby stabilizing the milling cutter. The shims 8 on the clamping plates 7 also serve to buffer and protect the surface of the cutter shank.

[0027] With the structure described above, installing the cutter holder is as simple as pushing the milling cutter into the mounting slot 1, achieving quick installation without any other complex operations. Simultaneously, the elastic ball 9 pushes the clamping plate 7 according to the diameter of different milling cutters, thus quickly adapting to different sizes of milling cutters (although the sizes of the milling cutters are different, the differences are not significant). Meanwhile, the shim 8 and the buffer pad 10 protect the milling cutter holder, reducing the occurrence of damage from impacts.

[0028] A connecting pipe 13, which communicates with the interior, is fixedly installed on one side of the elastic ball 9. A duct 14 is fixedly installed on the top of the cutter disc 2. The end of the connecting pipe 13 away from the elastic ball 9 is connected to the interior of the duct 14. A hollow fixing ring 15 is fixedly installed on the end of the duct 14 away from the connecting pipe 13. Several air outlets 16, which communicate with the interior, are opened on one side of the fixing ring 15. A bracket 20 is provided between the fixing ring 15 and the cutter disc 2. A filter screen 17 is fixedly installed inside the air outlets 16 of the fixing ring 15. An inclined guide groove 18 is opened inside the fixing ring 15. The two ends of the bracket 20 are respectively engaged with the cutter disc 2 and the fixing ring 15. The duct 14 is made of rigid material, and a slot 19 is opened on the top of the fixing ring 15.

[0029] During operation, when the push plate slides and compresses the elastic ball 9 into the receiving groove 4, the gas inside the elastic ball 9, after being compressed, enters the fixed ring 15 through the connecting pipe 13 and the air guide pipe 14, and is sprayed onto the cutting head of the milling cutter through several air outlets 16 within the fixed ring 15, thus achieving auxiliary cleaning of the cutting head. Air cleaning reduces dust and impurities adhering to the cutting head during the production, transportation, or initial processing of the milling cutter, thereby improving the effect of subsequent PVD coating treatment. The air outlets 16 are designed with an inclined shape to better clean the cutting head with air, while the filter screen 17 is installed to reduce the entry of impurities when not in use, blocking impurities in the air outlets 16 and discharging them through the guide groove 18. Simultaneously, the air guide pipe 14 is designed to be made of a rigid material, which assists the bracket 20 in forming the fixed ring 15. After the milling cutter is installed in the mounting slot 3, the bracket 20 is pulled out from the fixing ring 15 and the tool disc 2 bracket 20, and then the bracket 20 is inserted into the slot 19 on the top of the tool disc 2 for fixation, so that the top of the bracket 20 is higher than the top of the milling cutter, so that the next tool disc 2 can be put on the mounting post 1 and contact the top of the bracket 20, avoiding the bottom of the next tool disc 2 from contacting the already installed tool head and causing damage to the tool head.

[0030] Working principle: The tool disc 2 is mounted on the mounting post 1, and the milling cutter to be machined is placed above the mounting groove 3 of the tool disc 2, so that the shank of the milling cutter contacts the arc-shaped surface of the guide block 11 and the ball 12. By pushing the milling cutter into the mounting groove 3, the shank of the milling cutter pushes the two guide blocks 11 in a direction away from each other. The guide blocks 11 drive the clamping plate 7 and the shim 8 to move together, thereby increasing the gap and facilitating the entry of the milling cutter shank between the two clamping plates 7. The ball 12 on the guide block 11 assists in the movement of the milling cutter. The clamping plate 7 moves through the connecting rod 6 and the push plate, and the elastic ball 9 is also compressed. When the shank of the milling cutter is fully inserted into the mounting groove 3, it will contact the buffer pad 10 in the mounting groove 3. The buffer post acts as a buffer to protect the end of the shank and prevent impact damage to the shank. The two clamping plates 7, under the action of the two elastic balls 9, always hold the cutter shank of the milling cutter, thereby stabilizing the milling cutter. The shims 8 on the clamping plates 7 also serve to buffer and protect the surface of the cutter shank.

[0031] When the push plate slides and compresses the elastic ball 9 into the receiving groove 4, the gas inside the elastic ball 9, after being compressed, enters the fixing ring 15 through the connecting pipe 13 and the air guide pipe 14, and is sprayed onto the cutting head of the milling cutter through several air outlets 16 in the fixing ring 15, thus achieving auxiliary cleaning of the cutting head. The air outlets 16 are designed to be inclined to better blow air to clean the cutting head of the milling cutter, and the filter screen 17 is installed to reduce the entry of impurities when not in use, and to block the impurities in the air outlets 16, which are then discharged through the guide groove 18. At the same time, the air guide pipe 14 is designed to be made of a rigid material, which can assist the bracket 20 in forming the fixing ring 15. After the milling cutter is installed in the mounting slot 3, the bracket 20 is pulled out from the fixing ring 15 and the tool disc 2 bracket 20, and then the bracket 20 is inserted into the slot 19 on the top of the tool disc 2 for fixation, so that the top of the bracket 20 is higher than the top of the milling cutter, so that the next tool disc 2 can be put on the mounting post 1 and contact the top of the bracket 20, avoiding the bottom of the next tool disc 2 from contacting the already installed tool head and causing damage to the tool head.

[0032] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A PVD coating machining fixture for milling cutters, comprising a mounting post (1) and a tool disk (2), wherein a plurality of tool disks (2) are mounted on the surface of the mounting post (1), and a plurality of milling cutters are mounted on the tool disks (2); characterized in that: The surface of the cutter disc (2) is provided with a number of mounting slots (3) for mounting milling cutters. The mounting post (1) is provided with a number of storage slots (4) that are connected to the mounting slots (3). The storage slots (4) are arranged in pairs symmetrically about the central axis of the mounting slots (3). The storage slots (4) are slidably connected to the slide plate (5) by the elastic ball (9). A connecting rod (6) is fixedly installed on one side of the slide plate (5). A clamping plate (7) is fixedly installed on the end of the connecting rod (6) away from the slide plate (5). A gasket (8) is fixedly installed on one side of the clamping plate (7). A buffer pad (10) of flexible material is fixedly installed in the mounting slot (3).

2. The PVD coating machining fixture for milling cutters according to claim 1, characterized in that: A guide block (11) is fixedly installed on the top of the clamp (7), and several flexible rolling balls (12) are wedged on the arc surface of the guide block (11).

3. The PVD coating machining fixture for milling cutters according to claim 1, characterized in that: A connecting pipe (13) connected to the interior is fixedly installed on one side of the elastic ball (9), and an air guide pipe (14) is fixedly installed on the top of the cutter disc (2). The end of the connecting pipe (13) away from the elastic ball (9) is connected to the interior of the air guide pipe (14).

4. A PVD coating machining fixture for milling cutters according to claim 3, characterized in that: A hollow fixing ring (15) is fixedly installed at one end of the air guide pipe (14) away from the connecting pipe (13). A number of air outlet holes (16) communicating with the interior are opened on one side of the fixing ring (15). A bracket (20) is provided between the fixing ring (15) and the cutter disc (2).

5. A PVD coating machining fixture for milling cutters according to claim 4, characterized in that: A filter screen (17) is fixedly installed inside the air outlet (16) of the fixed ring (15), and an inclined guide groove (18) is opened inside the fixed ring (15).

6. A PVD coating machining fixture for milling cutters according to claim 5, characterized in that: The two ends of the bracket (20) are respectively engaged with the cutter disc (2) and the fixing ring (15). The air guide tube (14) is made of rigid material. The top of the fixing ring (15) has a slot (19).

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