PVD (Physical Vapor Deposition) coating rotating stand structure for cutting tool

Abstract

The invention discloses a PVD (Physical Vapor Deposition) coating rotating stand structure for a cutting tool, and belongs to the technical field of coating, the PVD coating rotating stand structure comprises a fixed base and an upper rotating table, the upper rotating table is arranged on the upper side of the fixed base, a lower rotating seat is rotatably connected in the fixed base, an inner gear ring is fixedly connected to the circumferential inner wall of the fixed base, and a plurality of autorotation gears are rotatably connected to the lower rotating seat; the multiple rotation gears are meshed with the inner side of the inner gear ring, the top ends of the multiple rotation gears are detachably connected with rotation rods, and the tops of the multiple rotation rods are detachably connected to the upper rotary table; according to the cutting tool clamping device, the pushing mechanism controls the arc-shaped outer clamping block assembly to slide inwards, so that the arc-shaped outer clamping block assembly and the arc-shaped inner clamping block assembly clamp a cutting tool, and after clamping is completed, the nut is reversely rotated to move upwards and reset, so that the cutting tool clamped by the arc-shaped outer clamping block assembly and the arc-shaped inner clamping block assembly is pulled out, and the inserting part of the cutting tool is suspended; the surface of the plug-in part is exposed and can be in contact with the material for deposition.

Description

Technical Field

[0001] The present invention relates to the field of coating technology, and more specifically, to a PVD coating turntable structure for cutting tools. Background Art

[0002] PVD, namely physical vapor deposition, is a technology for forming a coating film on the surface of a cutting tool by physical means. It can greatly improve the surface hardness of the cutting tool without reducing the strength of the cutting tool. Compared with traditional electroplating, PVD has significant advantages. The thickness of the vacuum coating is in the micron range, only one-tenth of that of traditional electroplating, with extremely little impact on the workpiece accuracy, and the formed coating adheres tightly to the substrate.

[0003] Currently, when a cutting tool is subjected to PVD coating, a turntable is required. The cutting tool is placed on the turntable, and the turntable drives the cutting tool to rotate in a vacuum coating chamber to uniformly coat the surface of the cutting tool. When the existing PVD coating turntable places the cutting tool, since the cutting tool is usually a cylindrical shape with a certain length, the cutting tool needs to be inserted into the turntable to ensure stability during rotary coating. However, this will cause the surface at the insertion part of the tool and the turntable to be unable to contact the material for deposition, resulting in the film not covering the entire surface of the tool and unable to achieve 100% coating of the tool surface. Summary of the Invention

[0004] 1. Technical Problems to be Solved

[0005] Aiming at the problems existing in the prior art, the purpose of the present invention is to provide a PVD coating turntable structure for cutting tools, aiming to solve the problem that when the existing PVD coating turntable places the cutting tool, since the cutting tool is usually a cylindrical shape with a certain length, the cutting tool needs to be inserted into the turntable to ensure stability during rotary coating. However, this will cause the surface at the insertion part of the tool and the turntable to be unable to contact the material for deposition, resulting in the film not covering the entire surface of the tool and unable to achieve 100% coating of the tool surface.

[0006] 2. Technical Solutions

[0007] To solve the above problems, the present invention adopts the following technical solutions:

[0008] A PVD coating turntable structure for a cutting tool, comprising a fixed base and an upper turntable. The upper turntable is arranged on the upper side of the fixed base. A lower turntable is rotatably connected inside the fixed base. An internal gear ring is fixedly connected to the circumferential inner wall of the fixed base. A plurality of self-rotating gears are rotatably connected to the lower turntable, and the plurality of self-rotating gears are meshed with the inner side of the internal gear ring. The tops of the plurality of self-rotating gears are all detachably connected with self-rotating rods, and the tops of the plurality of self-rotating rods are all detachably connected to the upper turntable. The circumferential surfaces of the plurality of self-rotating rods are all fixedly connected with chassis. A set of sliding disks are slidably connected to the circumferential surfaces of the plurality of self-rotating rods, and the multiple sets of sliding disks are respectively located above the multiple chassis. Each set of sliding disks is provided with a plurality of them. The tops of the multiple chassis and each of the multiple sliding disks in each group are all fixedly connected with plug-in sleeve assemblies. A top disk is slidably connected to the circumferential surface of each of the plurality of self-rotating rods, and the multiple top disks are respectively located above each of the multiple sliding disks in each group. Nuts are threadedly connected to the circumferential surfaces of the plurality of self-rotating rods, and the multiple nuts are respectively located above the multiple top disks. Rotating sleeves are rotatably connected to the outer surfaces of the multiple nuts. Fixed rod groups are fixedly connected between the multiple rotating sleeves and the multiple top disks respectively. A telescopic tube assembly is arranged between each adjacent two of the sliding disks in each group. The same telescopic tube assembly is arranged between each of the multiple chassis and the lowermost sliding disk in each group. The bottoms of each of the multiple sliding disks and the multiple top disks are all fixedly connected with connecting plates. The bottoms of the multiple connecting plates are all fixedly connected with arc-shaped inner clamping block assemblies, and the multiple arc-shaped inner clamping block assemblies respectively correspond to the multiple plug-in sleeve assemblies. Arc-shaped outer clamping block assemblies are slidably connected to the bottoms of the multiple connecting plates, and the multiple arc-shaped outer clamping block assemblies respectively correspond to the multiple arc-shaped inner clamping block assemblies. A pushing mechanism is arranged at the bottom of each of the multiple connecting plates, and the multiple pushing mechanisms are used to respectively push the multiple arc-shaped outer clamping block assemblies.

[0009] As a preferred solution of the present invention, each telescopic tube assembly includes an outer tube group and an inner rod group. The outer tube group is fixedly connected to the bottom end of a top disk or any one of the sliding disks in each group. The inner rod group is fixedly connected to the top end of a chassis or any one of the sliding disks in each group.

[0010] As a preferred solution of the present invention, a anti-disengagement block is fixedly connected to the top end of the inner rod group, and the anti-disengagement block is slidably connected inside the outer tube group.

[0011] As a preferred solution of the present invention, each pushing mechanism includes a fixed block assembly, a bevel gear assembly, a threaded rod assembly and a bevel gear ring. The fixed block assembly is fixedly connected to the bottom end of a connecting plate. The bevel gear assembly is rotatably connected to the fixed block assembly. The threaded rod assembly is threadedly connected inside the bevel gear assembly. The bevel gear ring is rotatably connected to the bottom end of a connecting plate, and the bevel gear assembly is meshed with the inner side of the bevel gear ring.

[0012] As a preferred embodiment of the present invention, rotation grooves are formed at the bottom ends of the plurality of connecting plates, rotation rings are fixedly connected to the top ends of the plurality of conical tooth rings, and the plurality of rotation rings are respectively rotatably connected in the plurality of rotation grooves.

[0013] As a preferred embodiment of the present invention, chute groups are formed at the bottom ends of the plurality of connecting plates, slider groups are fixedly connected to the top ends of the plurality of arc-shaped outer clamping block assemblies, and the plurality of slider groups are respectively slidably connected in the plurality of chute groups.

[0014] As a preferred embodiment of the present invention, anti-slip pad assemblies are fixedly connected to the plurality of arc-shaped inner clamping block assemblies, and the same anti-slip pad assemblies are fixedly connected to the plurality of arc-shaped outer clamping block assemblies.

[0015] As a preferred embodiment of the present invention, inserting columns are fixedly connected to the top ends of the plurality of self-rotating gears, cross grooves are formed at the bottom ends of the plurality of self-rotating rods, and the plurality of inserting columns are respectively inserted into the plurality of cross grooves.

[0016] As a preferred embodiment of the present invention, a plurality of connection ports are formed on the upper turntable, connection grooves are formed on the outer surfaces of the tops of the plurality of self-rotating rods, and the plurality of connection grooves are respectively located in the plurality of connection ports. Limit bolts are detachably connected in the plurality of connection ports, and the plurality of limit bolts respectively correspond to the plurality of self-rotating rods.

[0017] As a preferred embodiment of the present invention, annular grooves are formed on the circumferential surfaces of the plurality of nuts, annular protrusions are fixedly connected to the inner circumferential walls of the plurality of rotating sleeves, and the plurality of annular protrusions are respectively rotatably connected in the plurality of annular grooves.

[0018] 3. Beneficial effects

[0019] Compared with the prior art, the advantages of the present invention are as follows:

[0020] (1) In this solution, when coating the cutting tool, the cutting tool is inserted into the inserting sleeve assembly. The self-rotating rod drives the inserting sleeve assembly to rotate and self-rotate, so that the surface of the cutting tool inserted in the inserting sleeve assembly uniformly contacts the material for deposition, completing the first coating process. After the first coating of the cutting tool is completed, by rotating the nut downward, the arc-shaped inner clamping block assembly and the arc-shaped outer clamping block assembly move downward to correspond to the top of the cutting tool. The pushing mechanism controls the arc-shaped outer clamping block assembly to slide inward, so that the arc-shaped outer clamping block assembly and the arc-shaped inner clamping block assembly clamp the cutting tool. After the clamping is completed, the nut is rotated in the reverse direction to move upward and reset, so that the cutting tool clamped by the arc-shaped outer clamping block assembly and the arc-shaped inner clamping block assembly is pulled out, and the inserted part of the cutting tool is suspended, and the surface of the inserted part is exposed, and it can contact the material for deposition, and then the second coating is carried out, so that the film completely covers the surface of the cutting tool, achieving 100% coating and ensuring the coating effect. Description of the drawings

[0021] Figure 1 is the front view of the present invention;

[0022] Figure 2 is the sectional view of the present invention;

[0023] Figure 3 is the structural diagram of the bottom of the present invention;

[0024] Figure 4 is the structural diagram of the middle part of the present invention;

[0025] Figure 5 is the structural diagram of the pushing mechanism in the present invention;

[0026] Figure 6 in the present invention Figure 5 exploded view;

[0027] Figure 7 is the structural diagram of the upper part of the present invention;

[0028] Figure 8 in the present invention Figure 7 exploded view.

[0029] Description of reference numerals in the figure:

[0030] 1. Fixed base; 2. Upper turntable; 3. Lower turntable; 4. Inner gear ring; 5. Self-rotating gear; 6. Self-rotating rod; 7. Chassis; 8. Slide plate; 9. Insertion sleeve assembly; 10. Top plate; 11. Nut; 12. Rotating sleeve; 13. Fixed rod group; 14. Telescopic tube assembly; 141. Outer tube group; 142. Inner rod group; 15. Connecting plate; 16. Arc-shaped inner clamping block assembly; 17. Arc-shaped outer clamping block assembly; 181. Fixed block assembly; 182. Bevel gear assembly; 183. Threaded rod assembly; 184. Bevel gear ring; 19. Insertion column; 20. Cross slot; 21. Connection port; 22. Connection groove; 23. Limit bolt; 24. Annular groove; 25. Annular protrusion; 26. Rotating slot; 27. Rotating ring; 28. Chute group; 29. Slide block group; 30. Anti-slip pad assembly; 31. Anti-disengagement block. Detailed implementation manners

[0031] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0032] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "inner", "outer", "top / bottom end", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0033] In the description of the present invention, it should be noted that unless otherwise clearly specified and defined, the terms "installed", "provided with", "sheathed / connected", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0034] Embodiment:

[0035] Please refer to Figures 1 - 8, a PVD coating turntable structure for a cutting tool, comprising a fixed base 1 and an upper turntable 2. The upper turntable 2 is arranged on the upper side of the fixed base 1. A lower turntable 3 is rotatably connected inside the fixed base 1. An internal gear ring 4 is fixedly connected to the circumferential inner wall of the fixed base 1. A plurality of self-rotating gears 5 are rotatably connected to the lower turntable 3, and the plurality of self-rotating gears 5 are meshed with the inner side of the internal gear ring 4. The tops of the plurality of self-rotating gears 5 are all detachably connected with self-rotating rods 6, and the tops of the plurality of self-rotating rods 6 are all detachably connected to the upper turntable 2. The circumferential surfaces of the plurality of self-rotating rods 6 are all fixedly connected with chassis 7. A set of sliding disks 8 are slidably connected to the circumferential surfaces of the plurality of self-rotating rods 6, and the multiple sets of sliding disks 8 are respectively located above the plurality of chassis 7. Each set of sliding disks 8 is provided with a plurality of them. The tops of the plurality of chassis 7 and each plurality of sliding disks 8 in each set are all fixedly connected with plug-in sleeve assemblies 9. A top disk 10 is slidably connected to the circumferential surfaces of the plurality of self-rotating rods 6, and the plurality of top disks 10 are respectively located above each plurality of sliding disks 8 in each set. Nuts 11 are threadedly connected to the circumferential surfaces of the plurality of self-rotating rods 6, and the plurality of nuts 11 are respectively located above the plurality of top disks 10. Rotating sleeves 12 are rotatably connected to the outer surfaces of the plurality of nuts 11. Fixed rod groups 13 are fixedly connected between the plurality of rotating sleeves 12 and the plurality of top disks 10 respectively. A telescopic tube assembly 14 is arranged between each adjacent two sliding disks 8 in each set. The same telescopic tube assembly 14 is arranged between the plurality of chassis 7 and each of the lowermost sliding disks 8 in each set. The bottoms of each plurality of sliding disks 8 and the plurality of top disks 10 are all fixedly connected with connecting plates 15. The bottoms of the plurality of connecting plates 15 are all fixedly connected with arc-shaped inner clamping block assemblies 16, and the plurality of arc-shaped inner clamping block assemblies 16 respectively correspond to the plurality of plug-in sleeve assemblies 9. Arc-shaped outer clamping block assemblies 17 are slidably connected to the bottoms of the plurality of connecting plates 15, and the plurality of arc-shaped outer clamping block assemblies 17 respectively correspond to the plurality of arc-shaped inner clamping block assemblies 16. Pushing mechanisms are arranged at the bottoms of the plurality of connecting plates 15, and the plurality of pushing mechanisms are used to respectively push the plurality of arc-shaped outer clamping block assemblies 17.

[0036] In this embodiment, the fixed base 1 is fixedly installed on the bottom wall of the vacuum coating machine, the upper turntable 2 is rotatably installed on the top wall of the vacuum coating machine, the lower turntable 3 is driven by a motor. When coating the cutting tool, the cutting tools are respectively inserted into a plurality of socket sleeve assemblies 9, and then the bottom ends of a plurality of self-rotating rods 6 are respectively installed on a plurality of self-rotating gears 5. The tops of the plurality of self-rotating rods 6 are connected to the upper turntable 2. The motor drives a plurality of self-rotating gears 5 to rotate through the lower turntable 3. During the rotation of the plurality of self-rotating gears 5, they rotate by meshing with the internal gear ring 4. The plurality of self-rotating gears 5 drive the plurality of self-rotating rods 6 to rotate and revolve around the central axis of the fixed base 1. At the same time, the plurality of self-rotating rods 6 drive the upper turntable 2 to rotate. During the rotation and revolution of the plurality of self-rotating rods 6, the plurality of chassis 7 and each group of a plurality of sliding disks 8 rotate, so that the plurality of socket sleeve assemblies 9 drive the cutting tools to rotate in the vacuum coating machine for coating. After the cutting tools are coated, by rotating a plurality of nuts 11, the plurality of sleeves 12 are lowered. The plurality of sleeves 12 respectively drive a plurality of top disks 10 to descend through a plurality of fixed rod groups 13. The plurality of top disks 10 move the plurality of sliding disks 8 downward through a plurality of telescopic tube assemblies 14. After the plurality of top disks 10 and the plurality of sliding disks 8 move downward, the plurality of connecting plates 15 move downward. The plurality of connecting plates 15 respectively drive a plurality of arc-shaped inner clamping block assemblies 16 and a plurality of arc-shaped outer clamping block assemblies 17 to approach the plurality of socket sleeve assemblies 9. The plurality of arc-shaped inner clamping block assemblies 16 and the plurality of arc-shaped outer clamping block assemblies 17 respectively correspond to the tops of the cutting tools inserted in the plurality of socket sleeve assemblies 9. Then, by using a plurality of pushing mechanisms, the plurality of arc-shaped outer clamping block assemblies 17 are respectively controlled to slide at the bottom of the plurality of connecting plates 15. The plurality of arc-shaped outer clamping block assemblies 17 respectively approach the plurality of arc-shaped inner clamping block assemblies 16 to clamp the tops of the cutting tools. Then, the plurality of nuts 11 are rotated in the reverse direction, so that the plurality of nuts 11 respectively drive the plurality of fixed rod groups 13 to rise through the plurality of sleeves 12. The plurality of fixed rod groups 13 respectively pull the plurality of telescopic tube assemblies 14 through the plurality of top disks 10, so that each group of a plurality of sliding disks 8 is unfolded above the plurality of chassis 7. The plurality of connecting plates 15 move upward and unfold following the plurality of top disks 10 and each group of a plurality of sliding disks 8, so that the cutting tools clamped by the plurality of arc-shaped inner clamping block assemblies 16 and the plurality of arc-shaped outer clamping block assemblies 17 are pulled out from the plurality of socket sleeve assemblies 9. After being pulled out, the bottoms of the cutting tools are suspended. The plurality of lower turntables 3 drive the plurality of self-rotating rods 6 to rotate through the motor, and the plurality of self-rotating rods 6 drive the cutting tools with suspended bottoms to rotate in the vacuum coating machine, so that all surfaces of the cutting tools are subjected to coating processing.

[0037] Specifically, each telescopic tube assembly 14 includes an outer tube group 141 and an inner rod group 142. The outer tube group 141 is fixedly connected to the bottom end of a top disk 10 or any one of each group of sliding disks 8, and the inner rod group 142 is fixedly connected to the top end of a chassis 7 or any one of each group of sliding disks 8.

[0038] In this embodiment, when multiple top plates 10 and multiple sliding plates 8 in each group are lifted and lowered, multiple inner rod groups 142 slide within multiple outer tube groups 141 respectively, so that the lifting and lowering of multiple top plates 10 and multiple sliding plates 8 in each group above multiple chassis 7 are kept stable.

[0039] Specifically, a anti - detachment block 31 is fixedly connected to the top end of the inner rod group 142, and the anti - detachment block 31 is slidably connected within the outer tube group 141.

[0040] In this embodiment, the anti - detachment block 31 is used to limit the inner rod group 142 to prevent the inner rod group 142 from affecting the lifting and lowering of the top plate 10 and multiple sliding plates 8 in each group due to sliding out of the inner chute of the outer tube group 141.

[0041] Specifically, each pushing mechanism includes a fixed - block assembly 181, a bevel - gear assembly 182, a threaded - rod assembly 183 and a bevel - gear ring 184. The fixed - block assembly 181 is fixedly connected to the bottom end of a connecting plate 15. The bevel - gear assembly 182 is rotatably connected to the fixed - block assembly 181. The threaded - rod assembly 183 is threadedly connected within the bevel - gear assembly 182. The bevel - gear ring 184 is rotatably connected to the bottom end of a connecting plate 15, and the bevel - gear assembly 182 meshes with the inner side of the bevel - gear ring 184.

[0042] In this embodiment, when the arc - shaped outer clamping block assembly 17 and the arc - shaped inner clamping block assembly 16 cooperate to clamp the top of the cutting tool, by rotating the bevel - gear ring 184, the bevel - gear assembly 182 rotates on the fixed - block assembly 181. The bevel - gear assembly 182 makes the threaded - rod assembly 183 push the arc - shaped outer clamping block assembly 17 to move inwards towards the arc - shaped inner clamping block assembly 16. The arc - shaped inner clamping block assembly 16 and the arc - shaped outer clamping block assembly 17 cooperate to clamp the top of the cutting tool, facilitating the bottom of the cutting tool to be suspended for coating.

[0043] Specifically, rotating grooves 26 are formed at the bottom ends of multiple connecting plates 15. Rotating rings 27 are fixedly connected to the top ends of multiple bevel - gear rings 184, and multiple rotating rings 27 are respectively rotatably connected within multiple rotating grooves 26.

[0044] In this embodiment, the bevel - gear ring 184 is rotatably connected to the bottom end of the connecting plate 15 through the rotating ring 27 and the rotating groove 26, and the rotating ring 27 and the rotating groove 26 keep the rotation of the bevel - gear ring 184 stable.

[0045] Specifically, chute groups 28 are formed at the bottom ends of multiple connecting plates 15. Slide - block groups 29 are fixedly connected to the top ends of multiple arc - shaped outer clamping block assemblies 17, and multiple slide - block groups 29 are respectively slidably connected within multiple chute groups 28.

[0046] In this embodiment, when multiple driving mechanisms move multiple arc-shaped outer clamping block assemblies 17, the multiple arc-shaped outer clamping block assemblies 17 cause multiple slider groups 29 to slide in multiple chute groups 28 respectively, and the multiple slider groups 29 and the multiple chute groups 28 keep the movement of the multiple arc-shaped outer clamping block assemblies 17 stable.

[0047] Specifically, anti-slip pad assemblies 30 are fixedly connected to all of the multiple arc-shaped inner clamping block assemblies 16, and the same anti-slip pad assemblies 30 are fixedly connected to all of the multiple arc-shaped outer clamping block assemblies 17.

[0048] In this embodiment, the multiple arc-shaped inner clamping block assemblies 16 and the multiple arc-shaped outer clamping block assemblies 17 clamp the top of the cutting tool through the multiple anti-slip pad assemblies 30, improving the stability of clamping the cutting tool.

[0049] Specifically, insertion columns 19 are fixedly connected to the tops of all of the multiple self-rotating gears 5, cross grooves 20 are formed at the bottoms of all of the multiple self-rotating rods 6, and the multiple insertion columns 19 are respectively inserted into the multiple cross grooves 20.

[0050] In this embodiment, when the multiple self-rotating rods 6 are installed on the multiple self-rotating gears 5, the multiple cross grooves 20 are respectively inserted onto the multiple insertion columns 19 to achieve installation, enabling the multiple self-rotating gears 5 to stably drive the multiple self-rotating rods 6 to rotate.

[0051] Specifically, multiple connection ports 21 are formed on the upper turntable 2, connection grooves 22 are formed on the outer surfaces of the tops of all of the multiple self-rotating rods 6, and the multiple connection grooves 22 are respectively located within the multiple connection ports 21. Limit bolts 23 are detachably connected within the multiple connection ports 21, and the multiple limit bolts 23 respectively correspond to the multiple self-rotating rods 6.

[0052] In this embodiment, when the multiple self-rotating rods 6 are inserted onto the multiple self-rotating gears 5, the tops of the multiple self-rotating rods 6 are respectively installed within the multiple connection ports 21 through the multiple connection grooves 22, and the multiple limit bolts 23 restrict the multiple self-rotating rods 6 within the multiple connection ports 21, enabling the tops of the multiple self-rotating rods 6 to stably rotate on the upper turntable 2 and improving the stability during the rotary coating process of the cutting tool.

[0053] Specifically, annular grooves 24 are formed on the circumferential surfaces of all of the multiple nuts 11, annular protrusions 25 are fixedly connected to the circumferential inner walls of all of the multiple rotating sleeves 12, and the multiple annular protrusions 25 are respectively rotatably connected within the multiple annular grooves 24.

[0054] In this embodiment, when the multiple nuts 11 rotate and move up and down on the surfaces of the multiple self-rotating rods 6, they will rotate within the multiple rotating sleeves 12 through the multiple annular grooves 24 and the multiple annular protrusions 25, preventing the multiple rotating sleeves 12 from restricting the rotation of the multiple nuts 11.

[0055] Working principle: The fixed base 1 is fixedly installed on the bottom wall of the vacuum coating machine, the upper turntable 2 is rotatably installed on the top wall of the vacuum coating machine, and the lower turntable 3 is connected to the motor inside the vacuum coating machine. When coating the cutting tool, the cutting tool is respectively inserted into a plurality of socket sleeve assemblies 9, and then the bottom ends of a plurality of self-rotating rods 6 are respectively installed on a plurality of self-rotating gears 5. The tops of a plurality of self-rotating rods 6 are rotatably installed inside the upper turntable 2. The motor drives a plurality of self-rotating gears 5 to rotate through the lower turntable 3. During the rotation of a plurality of self-rotating gears 5, they rotate on their own through meshing with the internal gear ring 4. A plurality of self-rotating gears 5 drive a plurality of self-rotating rods 6 to rotate around the central axis of the fixed base 1 and rotate on their own. At the same time, a plurality of self-rotating rods 6 drive the upper turntable 2 to rotate. During the rotation and revolution of a plurality of self-rotating rods 6, a plurality of chassis 7 and each group of a plurality of sliding disks 8 rotate, so that a plurality of socket sleeve assemblies 9 drive the cutting tool to rotate inside the vacuum coating machine for coating. After the coating of the cutting tool is completed, by rotating a plurality of nuts 11, a plurality of sleeves 12 are lowered. A plurality of sleeves 12 respectively drive a plurality of top disks 10 to lower through a plurality of fixed rod groups 13. A plurality of top disks 10 make a plurality of sliding disks 8 move downward through a plurality of telescopic tube assemblies 14. After a plurality of top disks 10 and a plurality of sliding disks 8 move downward and approach a plurality of chassis 7, a plurality of connecting plates 15 move downward. A plurality of connecting plates 15 respectively drive a plurality of arc-shaped inner clamping block assemblies 16 and a plurality of arc-shaped outer clamping block assemblies 17 to approach a plurality of socket sleeve assemblies 9. A plurality of arc-shaped inner clamping block assemblies 16 and a plurality of arc-shaped outer clamping block assemblies 17 respectively correspond to the tops of the cutting tools inserted in a plurality of socket sleeve assemblies 9. Then rotate a plurality of tapered gear rings 184 to make a plurality of tapered gear assemblies 182 rotate on a plurality of fixed block assemblies 181. A plurality of tapered gear assemblies 182 make a plurality of threaded rod assemblies 183 push a plurality of arc-shaped outer clamping block assemblies 17 to approach a plurality of arc-shaped inner clamping block assemblies 16 inward. A plurality of arc-shaped outer clamping block assemblies 17 slide at the bottom of a plurality of connecting plates 15 and respectively approach a plurality of arc-shaped inner clamping block assemblies 16 to clamp the tops of the cutting tools. Then rotate a plurality of nuts 11 in the reverse direction, so that a plurality of nuts 11 respectively drive a plurality of fixed rod groups 13 to rise through a plurality of sleeves 12. A plurality of fixed rod groups 13 respectively pull a plurality of telescopic tube assemblies 14 through a plurality of top disks 10, so that each group of a plurality of sliding disks 8 expands above a plurality of chassis 7. A plurality of connecting plates 15 move upward and expand following a plurality of top disks 10 and each group of a plurality of sliding disks 8, so that the cutting tools clamped by a plurality of arc-shaped inner clamping block assemblies 16 and a plurality of arc-shaped outer clamping block assemblies 17 are pulled out from a plurality of socket sleeve assemblies 9. After being pulled out, the bottom of the cutting tool is suspended. A plurality of lower turntables 3 drive a plurality of self-rotating rods 6 to rotate through the drive of the motor. A plurality of self-rotating rods 6 drive the cutting tool with a suspended bottom to rotate inside the vacuum coating machine, so that all surfaces of the cutting tool are subjected to coating processing.

[0056] As described above, it is only the preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution of the present invention and its improved concept, makes equivalent substitutions or changes, and all should be covered within the protection scope of the present invention.

Claims

1. A PVD coating turntable structure for a cutting tool, comprising a fixed base (1) and an upper turntable (2), characterized in that: The upper turntable (2) is arranged on the upper side of the fixed base (1). A lower turntable (3) is rotatably connected inside the fixed base (1). An internal gear ring (4) is fixedly connected to the inner circumferential wall of the fixed base (1). A plurality of self-rotating gears (5) are rotatably connected to the lower turntable (3), and the plurality of self-rotating gears (5) are meshed with the inner side of the internal gear ring (4). The tops of the plurality of self-rotating gears (5) are all detachably connected with self-rotating rods (6), and the tops of the plurality of self-rotating rods (6) are all detachably connected to the upper turntable (2). The circumferential surfaces of the plurality of self-rotating rods (6) are all fixedly connected with chassis (7). A set of sliding disks (8) are slidably connected to the circumferential surfaces of the plurality of self-rotating rods (6), and the multiple sets of sliding disks (8) are respectively located above the plurality of chassis (7). Each set of the sliding disks (8) is provided with a plurality of them. The tops of the plurality of chassis (7) and each set of the plurality of sliding disks (8) are all fixedly connected with plug-in sleeve assemblies (9). A top disk (10) is slidably connected to the circumferential surface of the plurality of self-rotating rods (6), and the plurality of top disks (10) are respectively located above each set of the plurality of sliding disks (8). Nuts (11) are threadedly connected to the circumferential surfaces of the plurality of self-rotating rods (6), and the plurality of nuts (11) are respectively located above the plurality of top disks (10). Rotating sleeves (12) are rotatably connected to the outer surfaces of the plurality of nuts (11). Fixed rod groups (13) are fixedly connected between the plurality of rotating sleeves (12) and the plurality of top disks (10) respectively. An expansion tube assembly (14) is arranged between each adjacent two of the sliding disks (8) in each set. The same expansion tube assembly (14) is arranged between the plurality of chassis (7) and each set of the lowermost sliding disks (8). The bottoms of each set of the plurality of sliding disks (8) and the plurality of top disks (10) are all fixedly connected with connecting plates (15). The bottoms of the plurality of connecting plates (15) are all fixedly connected with arc-shaped inner clamping block assemblies (16), and the plurality of arc-shaped inner clamping block assemblies (16) respectively correspond to the plurality of plug-in sleeve assemblies (9). Arc-shaped outer clamping block assemblies (17) are slidably connected to the bottoms of the plurality of connecting plates (15), and the plurality of arc-shaped outer clamping block assemblies (17) respectively correspond to the plurality of arc-shaped inner clamping block assemblies (16). A pushing mechanism is arranged at the bottom of each of the plurality of connecting plates (15), and the plurality of pushing mechanisms are used to respectively push the plurality of arc-shaped outer clamping block assemblies (17).

2. The PVD coating turret structure for a cutting tool according to claim 1, wherein: Each of the expansion tube assemblies (14) includes an outer tube group (141) and an inner rod group (142). The outer tube group (141) is fixedly connected to the bottom of a top disk (10) or any one of the sliding disks (8) in each set. The inner rod group (142) is fixedly connected to the top of a chassis (7) or any one of the sliding disks (8) in each set.

3. The PVD coating turret structure for a cutting tool according to claim 2, characterized in that: An anti-disengagement block (31) is fixedly connected to the top of the inner rod group (142), and the anti-disengagement block (31) is slidably connected inside the outer tube group (141).

4. A PVD coating turntable structure for a cutting tool according to claim 3, characterized in that: Each of the driving mechanisms includes a fixed block assembly (181), a bevel gear assembly (182), a threaded rod assembly (183) and a bevel gear ring (184). The fixed block assembly (181) is fixedly connected to the bottom end of a connecting plate (15). The bevel gear assembly (182) is rotatably connected to the fixed block assembly (181). The threaded rod assembly (183) is threadedly connected to the bevel gear assembly (182). The bevel gear ring (184) is rotatably connected to the bottom end of a connecting plate (15), and the bevel gear assembly (182) meshes with the inner side of the bevel gear ring (184).

5. The PVD coating turret structure for a cutting tool according to claim 4, characterized in that: Rotating grooves (26) are formed at the bottom ends of the plurality of connecting plates (15). Rotating rings (27) are fixedly connected to the top ends of the plurality of bevel gear rings (184), and the plurality of rotating rings (27) are respectively rotatably connected in the plurality of rotating grooves (26).

6. The PVD coating turret structure for a cutting tool according to claim 5, wherein: Sliding groove groups (28) are formed at the bottom ends of the plurality of connecting plates (15). Slider groups (29) are fixedly connected to the top ends of the plurality of arc-shaped outer clamping block assemblies (17), and the plurality of slider groups (29) are respectively slidably connected in the plurality of sliding groove groups (28).

7. The PVD coating turntable structure for a cutting tool according to claim 6, characterized in that: Anti-slip pad assemblies (30) are fixedly connected to the plurality of arc-shaped inner clamping block assemblies (16), and the same anti-slip pad assemblies (30) are fixedly connected to the plurality of arc-shaped outer clamping block assemblies (17).

8. A PVD coating turntable structure for a cutting tool according to claim 7, characterized in that: Insertion columns (19) are fixedly connected to the top ends of the plurality of self-rotating gears (5). Cross grooves (20) are formed at the bottom ends of the plurality of self-rotating rods (6), and the plurality of insertion columns (19) are respectively inserted into the plurality of cross grooves (20).

9. A PVD coating turret structure for a cutting tool according to claim 8, characterized in that: A plurality of connection ports (21) are formed in the upper turntable (2). Connection grooves (22) are formed on the outer surfaces of the tops of the plurality of self-rotating rods (6), and the plurality of connection grooves (22) are respectively located in the plurality of connection ports (21). Limit bolts (23) are detachably connected in the plurality of connection ports (21), and the plurality of limit bolts (23) respectively correspond to the plurality of self-rotating rods (6).

10. A PVD coating turret structure for a cutting tool according to claim 9, characterized in that: Circular grooves (24) are formed on the circumferential surfaces of the plurality of nuts (11). Circular protrusions (25) are fixedly connected to the inner circumferential walls of the plurality of rotating sleeves (12), and the plurality of circular protrusions (25) are respectively rotatably connected in the plurality of circular grooves (24).

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