A multi-layer PVD coating device for easy adjustment on cutting tools

Abstract

The present invention relates to the technical field of PVD coating, and discloses a multi-layer PVD coating device for convenient adjustment on a tool, comprising a coating machine case and a case door, wherein a base is arranged in the coating machine case, a rotating rod is rotatably arranged on the base, a multi-layer placing mechanism is fixedly sleeved on the rotating rod, a fixed shell is fixedly installed on the front side of the coating machine case, a rotating shaft is fixedly arranged through the case door, the rotating shaft is rotatably connected to the fixed shell, a placing groove is provided on the front side of the coating machine case, a supporting mechanism for supporting the case door is rotatably arranged in the placing groove, and the case door is controlled to be opened up and down by a rotating shaft that is fixedly arranged through the case door and rotatably connected to the fixed shell. After opening, the case door is supported in a horizontal state by the supporting mechanism, which is convenient for placing the tool base after being taken out, and the inner wall of the case door is flush with the bottom of the coating machine case door door, and after the tool is placed, the base can be directly pushed back into the coating machine case.

Description

Technical Field

[0001] The invention relates to the technical field of PVD coatings, in particular to a multi-layer PVD coating device which is convenient to adjust on a tool. Background Art

[0002] PVD, or programmable voltage monitor, is used in STM32ARM chips. Its function is to monitor the power supply voltage. When the power supply voltage drops below a given threshold, an interrupt is generated to notify the software for emergency processing. When the power supply voltage returns to above the given threshold, an interrupt is also generated to notify the software that power is restored. The coating is a solid continuous film obtained by applying the coating once. It is a thin layer of plastic applied to substrates such as metal, fabric, and plastic for protection, insulation, and decoration. The coating can be gaseous, liquid, or solid. The type and state of the coating are usually determined by the matrix to be sprayed. At present, when PVD coating is performed on the tool, PVD coating equipment is generally used, such as the coating device body in a multi-layer PVD coating device on a tool disclosed with authorization announcement number CN218812026U and announcement date April 7, 2023.

[0003] Before using the current PVD coating device, the support seat for placing the tool inside needs to be taken out from the inside of the box. During the removal process, since there is no supporting equipment on the outside of the box and the support seat is heavy, it is necessary to place an external cart or support frame at the door of the box to place the support seat. After the tool is placed, the support seat is put back into the box. It is difficult to control the height of the external support frame or cart to be exactly flush with the bottom of the door of the box, which makes it inconvenient to push the support seat back. There is friction and it is more laborious to push it back. After pushing it back, it is also difficult to control the support seat to be located in the middle of the box to ensure uniform heating of the tool. Summary of the invention

[0004] In view of the deficiencies in the prior art, the present invention provides a multi-layer PVD coating device that is easily adjustable on a cutting tool, which solves the problem that there is no supporting equipment on the outside of the box. After the support seat is taken out, it is necessary to use an external tool for support. The external tool is difficult to control its height, and it is not convenient to push the support seat back. There is friction and it is relatively laborious during the pushing back process. After pushing it back, it is also difficult to control the support seat to be located in the middle position of the box to ensure uniform heating of the cutting tool.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a multi-layer PVD coating device for convenient adjustment on a tool, comprising a coating machine housing and a housing door, a base is arranged in the coating machine housing, a rotating rod is rotatably arranged on the base, a multi-layer placement mechanism is fixedly sleeved on the rotating rod, a fixed shell is fixedly installed on the front side of the coating machine housing, a rotating shaft is fixedly arranged through the housing door, the rotating shaft is rotatably connected to the fixed shell, a placement groove is opened on the front side of the coating machine housing, a supporting mechanism for supporting the housing door is rotatably arranged in the placement groove, a connecting rope is fixedly wound on the supporting mechanism, a limiting mechanism for fixing the rotating shaft is arranged in one of the fixed housings, and the connecting rope One end is connected to the limiting mechanism, a slide rail is fixedly connected to the bottom of the coating machine case, a slide groove sliding with the slide rail is provided at the lower end of the base, a connecting groove is provided in one of the slide rails, a first gear is rotatably connected in the connecting groove, a latch tooth meshing with the first gear is fixedly connected to the side wall of the slide groove, a cavity is provided in the coating machine case, two fixed cylinders are rotatably installed on the upper wall of the cavity, a connecting mechanism is provided in the fixed cylinder, one of the connecting mechanisms is used to connect the rotating rod, and the other connecting mechanism is used to connect the first gear, storage mechanisms for controlling the connecting mechanisms are fixedly connected at both ends of the rotating shaft, and the two storage mechanisms are respectively connected to the two connecting mechanisms, and a power mechanism for controlling the fixed cylinder is fixedly installed in the cavity.

[0006] Preferably, the supporting mechanism comprises a telescopic rod located in the placement slot, a fixed shaft is fixed through the telescopic rod, the fixed shaft is rotatably connected to the side wall of the placement slot, a limit block is fixedly connected to the outside of the box door and abuts against the telescopic rod, and one end of the connecting rope is fixedly wrapped and connected to the fixed shaft.

[0007] Preferably, a sliding cavity is opened inside one of the fixed shells, the limiting mechanism includes a first rectangular rod slidably connected to the sliding cavity, a first spring is fixedly arranged between the first rectangular rod and the sliding cavity, a first rectangular groove connected to the first rectangular rod is opened at one end of the rotating shaft, and the other end of the connecting rope is fixedly wrapped and connected to the first rectangular rod.

[0008] Preferably, the connecting mechanism includes a second rectangular rod that slides through the fixed cylinder, a second spring is fixedly arranged between the second rectangular rod and the inside of the fixed cylinder, a second rectangular groove connected to one of the second rectangular rods is opened at the lower end of the rotating rod, and a third rectangular groove connected to another second rectangular rod is opened at the lower end of the first gear.

[0009] Preferably, the storage mechanism comprises a winding drum fixedly connected to the end of the rotating shaft, a pull rope is fixedly wound on the winding drum, and two pull ropes are fixedly connected to the two second rectangular rods respectively.

[0010] Preferably, the power mechanism comprises a motor fixedly mounted on the bottom of the cavity, the output end of the motor is fixedly connected to a second gear, and both sides of the second gear are meshedly connected to a third gear fixedly sleeved on the outside of the fixed cylinder.

[0011] Preferably, a connecting rail matching the slide groove is fixedly connected to the inner side of the box door.

[0012] Preferably, the placement mechanism includes a turntable fixedly mounted on a rotating rod, a plurality of gear plates are rotatably connected to the turntable, a tool cylinder is fixedly arranged on the gear plate, a gear ring meshing with the gear plate is rotatably mounted on the outer side of the rotating rod, and a placement rod fixedly connected to the base is fixedly connected to one side of the gear ring.

[0013] Preferably, a rotating handle for limiting the position of the telescopic rod is rotatably connected to the front side of the coating machine housing.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] 1. The present invention controls the box door to be opened up and down by a rotating shaft that is fixedly arranged in the box door and rotatably connected to the fixed shell. After opening, the box door is supported in a horizontal state by a supporting mechanism, which is convenient for placing the tool base after being taken out, and the inner wall of the box door is flush with the bottom of the coating machine box door. After the tool is placed, the base can be directly pushed back into the coating machine box without the need for support from external equipment.

[0016] 2. The present invention provides a slide groove at the lower end of the base that slides with the slide rail at the bottom of the coating machine housing, thereby facilitating the sliding of the base and allowing the base to slide along the slide rail in the same straight line without deviation. The base can be controlled to be in the middle position of the coating machine housing to avoid uneven heating of the tool.

[0017] 3. The present invention connects two fixed cylinders to the first gear and the rotating rod respectively through a connecting mechanism, and the two cylinders are not connected at the same time. When connected to the rotating rod, the fixed cylinder is controlled to rotate by a power mechanism to drive the rotating rod to rotate. Through the cooperation of the placement mechanism, the tool can be moved so that the tool is heated evenly. When connected to the first gear, the fixed cylinder is controlled to rotate by a power mechanism to drive the first gear to rotate, and the movement of the base can be controlled to avoid pulling by manpower. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall front view structure of the present invention;

[0019] Figure 2 It is a schematic diagram of the overall front cross-sectional structure of the present invention;

[0020] Figure 3 for Figure 2 A is a schematic diagram of the enlarged structure of the middle part;

[0021] Figure 4 It is a schematic diagram of the front cross-sectional structure of the rotating rod of the present invention;

[0022] Figure 5 It is a schematic diagram of the top view of the base of the present invention;

[0023] Figure 6 It is a schematic diagram of the overall side cross-sectional structure of the present invention;

[0024] Figure 7 It is a schematic diagram of the front cross-sectional structure of the box door of the present invention;

[0025] Figure 8 for Figure 7 Schematic diagram of the enlarged structure of B.

[0026] In the figure: 1. coating machine housing; 2. housing door; 3. placement slot; 4. telescopic rod; 5. fixed housing; 6. gear ring; 7. turntable; 8. rotating shaft; 9. fixed shaft; 10. connecting rope; 11. limit block; 12. rotating rod; 13. tool cylinder; 14. gear plate; 15. base; 16. slide rail; 17. connecting rail; 18. motor; 19. third gear; 20. fixed cylinder; 21. second gear; 22. second rectangular rod; 23. winding drum; 24. sliding cavity; 25. first spring; 26. first rectangular rod; 27. second rectangular slot; 28. second spring; 29. ​​first rectangular slot; 30. pull rope; 31. third rectangular slot; 32. latching tooth; 33. first gear; 34. placement rod; 35. cavity; 36. rotating handle. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0028] Example

[0029] See also Figure 1-Figure 8, a multi-layer PVD coating device for convenient adjustment on a tool, comprising a coating machine housing 1 and a housing door 2, a base 15 is arranged in the coating machine housing 1, a rotating rod 12 is rotatably arranged on the base 15, a multi-layer placing mechanism is fixedly sleeved on the rotating rod 12, a fixed shell 5 is fixedly installed on the front side of the coating machine housing 1, a rotating shaft 8 is fixedly arranged through the housing door 2, the rotating shaft 8 is rotatably connected to the fixed shell 5, a placing groove 3 is opened on the front side of the coating machine housing 1, a supporting mechanism for supporting the housing door 2 is rotatably arranged in the placing groove 3, the housing door 2 is opened up and down, and after opening, it is supported in a horizontal state by the supporting mechanism, so as to facilitate the placement of the tool base 15 after being taken out, and the inner wall of the housing door 2 is flush with the bottom of the coating machine housing 1 door, after the tool is placed, the base 15 can be directly pushed back into the coating machine housing 1 without the need for support from external equipment,

[0030] A connecting rope 10 is fixedly wound on the support mechanism, and the support mechanism includes a telescopic rod 4 located in the placement groove 3. The telescopic rod 4 is a prior art, and can be electrically set, or a setting similar to the support rod of an umbrella, etc., which is known to those skilled in the art and will not be described in detail here. A fixed shaft 9 is fixedly passed through the telescopic rod 4, and the fixed shaft 9 is rotatably connected to the side wall of the placement groove 3. A limit block 11 that abuts against the telescopic rod 4 is fixedly connected to the outside of the box door 2. One end of the connecting rope 10 is fixedly wound and connected to the fixed shaft 9. By rotating the telescopic rod 4, one end of the connecting rope 10 is separated from the placement groove 3, and the telescopic rod 4 is controlled to unfold and abut against the limit block 11, so that the box door 2 can be supported in a horizontal state.

[0031] A limiting mechanism for fixing the rotating shaft 8 is arranged in one of the fixed shells 5, one end of the connecting rope 10 is connected to the limiting mechanism, a sliding cavity 24 is opened inside one of the fixed shells 5, the limiting mechanism includes a first rectangular rod 26 slidably connected to the sliding cavity 24, a first spring 25 is fixedly arranged between the first rectangular rod 26 and the sliding cavity 24, a first rectangular groove 29 connected to the first rectangular rod 26 is opened at one end of the rotating shaft 8, and the other end of the connecting rope 10 is fixedly wound and connected to the first rectangular rod 26, so that when the telescopic rod 4 is rotated to support the box door 2, the first rectangular rod 26 can be pulled out of the first rectangular groove 29 by winding the connecting rope 10, so as to release the limiting of the rotating shaft 8, so that the box door 2 can be opened.

[0032] A slide rail 16 is fixedly connected to the bottom of the coating machine housing 1, and a slide groove that slides with the slide rail 16 is opened at the lower end of the base 15. A connecting groove is opened in one of the slide rails 16 to facilitate the sliding of the base 15, and the base 15 can slide along the slide rail 16 on the same straight line without deviation. The base 15 can be controlled to be in the middle position of the coating machine housing 1 to avoid uneven heating of the tool. A first gear 33 is rotatably connected in the connecting groove, and a latch tooth 32 meshing with the first gear 33 is fixedly connected to the side wall of the slide groove. A cavity 35 is opened in the coating machine housing 1, and two fixed cylinders 20 are rotatably installed on the upper wall of the cavity 35. A connecting mechanism is arranged in the fixed cylinder 20, one of which is used to connect the rotating rod 12, and the other connecting mechanism is used to connect the first gear 33. Both ends of the rotating shaft 8 are fixedly connected with a storage mechanism for controlling the connecting mechanism, and the two storage mechanisms are respectively connected to the two connecting mechanisms. The mechanism is connected, and a power mechanism for controlling the fixed cylinder 20 is fixedly installed in the cavity 35. The power mechanism includes a motor 18 fixedly installed at the bottom of the cavity 35. The output end of the motor 18 is fixedly connected to the second gear 21. Both sides of the second gear 21 are meshed and connected with the third gear 19 fixedly sleeved on the outside of the fixed cylinder 20. The two fixed cylinders 20 are respectively connected to the first gear 33 and the rotating rod 12 through the connecting mechanism, and the two are not connected at the same time. Through the cooperation of the storage mechanism, when the door is closed, when it is connected to the rotating rod 12, the fixed cylinder 20 is controlled to rotate by the motor 18, and the rotating rod 12 is driven to rotate. Through the cooperation of the placement mechanism, the tool can be moved, so that the tool is heated evenly. When the door is opened, it is connected to the first gear 33, and the fixed cylinder 20 is controlled to rotate by the motor 18, which drives the first gear 33 to rotate. The movement of the base 15 can be controlled to avoid pulling by manpower.

[0033] As a further solution of the present invention, the connecting mechanism includes a second rectangular rod 22 that slides through the fixed cylinder 20, a second spring 28 is fixedly arranged between the second rectangular rod 22 and the inside of the fixed cylinder 20, a second rectangular groove 27 connected to one of the second rectangular rods 22 is opened at the lower end of the rotating rod 12, and a third rectangular groove 31 connected to the other second rectangular rod 22 is opened at the lower end of the first gear 33. The storage mechanism includes a winding drum 23 fixedly connected to the end of the rotating shaft 8, and a pull rope 30 is fixedly wound on the winding drum 23. The two pull ropes 30 are respectively fixedly connected to the two second rectangular rods 22. When the door is opened, the rotating shaft 8 drives the winding drum 23 to rotate, one of the winding drums 23 reels the pull rope 30, and the other winding drum 23 releases the pull rope 30. , the pull rope 30 located on one side of the third rectangular groove 31 is released, the corresponding second rectangular rod 22 moves up and is connected to the third rectangular groove 31, the pull rope 30 located on one side of the second rectangular groove 27 is wound up, and the corresponding second rectangular rod 22 moves down and disengages from the second rectangular groove 27, so that the second spring 28 on one side of the second rectangular rod 22 is squeezed; when closing the door, the rotating shaft 8 drives the winding drum 23 to rotate, one winding drum 23 reels the pull rope 30, and the other winding drum 23 releases the pull rope 30, the pull rope 30 located on one side of the third rectangular groove 31 is wound up, the corresponding second rectangular rod 22 moves down and disengages from the third rectangular groove 31, the pull rope 30 located on one side of the second rectangular groove 27 is released, and the corresponding second rectangular rod 22 moves up and is connected to the second rectangular groove 27.

[0034] As a further solution of the present invention, a connecting rail 17 matching the slide groove is fixedly connected to the inner side of the box door 2, so that after the base 15 is pushed out for a period of time, it slides onto the connecting rail 17, which is convenient for one end of the base 15.

[0035] As a further solution of the present invention, the placement mechanism includes a turntable 7 fixedly mounted on a rotating rod 12, a plurality of gear plates 14 are rotatably connected to the turntable 7, a tool barrel 13 is fixedly arranged on the gear plate 14, a gear ring 6 rotatably mounted on the outer side of the rotating rod 12 and meshing with the gear plate 14, and a placement rod 34 fixedly connected to the base 15 is fixedly connected to one side of the gear ring 6, so that the rotating rod 12 can drive the turntable 7 to rotate when it rotates, and the turntable 7 drives the gear plate 14 to move, and when the gear plate 14 moves, it meshes with the gear ring 6 and can rotate, so that the tools in the tool barrel 13 are heated more evenly.

[0036] As a further solution of the present invention, a handle 36 for limiting the position of the telescopic rod 4 is rotatably connected to the front side of the coating machine housing 1. After the telescopic rod 4 is stored in the placement slot 3, the telescopic rod 4 can be limited by rotating the handle 36.

[0037] Working principle: When the base 15 needs to be taken out to place the tool during operation, the handle 36 is first rotated to release the limit on the telescopic rod 4, and then the telescopic rod 4 is rotated to make one end of the telescopic rod 4 disengage from the placement slot 3, and the telescopic rod 4 is controlled to unfold, and the telescopic rod 4 drives the fixed shaft 9 to rotate, and the fixed shaft 9 winds up the connecting rope 10, and the connecting rope 10 pulls the first rectangular rod 26 out of the first rectangular slot 29, and the first spring 25 is squeezed to release the limit on the rotating shaft 8, so that the box door 2 can be opened and turned to a horizontal state, and the box door 2 is supported horizontally by one end of the telescopic rod 4 being against the limit block 11;

[0038] During the rotation of the box door 2, the rotating shaft 8 is driven to rotate, and the rotating shaft 8 drives the winding drum 23 to rotate, the pull rope 30 located on one side of the third rectangular groove 31 is loosened, and the corresponding second rectangular rod 22 moves up to connect with the third rectangular groove 31, the pull rope 30 located on one side of the second rectangular groove 27 is wound up, and the corresponding second rectangular rod 22 moves down to disengage from the second rectangular groove 27, so that the second spring 28 on one side of the second rectangular rod 22 is squeezed;

[0039] Then, the motor 18 is started, and the motor 18 drives the second gear 21 to rotate. The second gear 21 drives the fixed cylinder 20 to rotate through the third gear 19. The fixed cylinder 20 drives the second rectangular rod 22 to rotate. The second rectangular rod 22 located in the third rectangular groove 31 drives the first gear 33 to rotate. Due to the cooperation between the first gear 33 and the latch 32, the base 15 is pushed to slide on the slide rail 16, and the base 15 is pushed out of the coating machine housing 1, and then supported by the horizontal housing door 2. During the pushing process, the slide groove is connected with the connecting rail 17, and the base 15 does not separate from the slide rail 16 during the movement.

[0040] After the cutter is placed, the motor 18 is started to reverse, and the base 15 can be moved and reset;

[0041] Then, the box door 2 is turned to be in a closed state, the box door 2 drives the rotating shaft 8 to rotate, and the rotating shaft 8 drives the winding drum 23 to rotate, the pull rope 30 located at one side of the third rectangular groove 31 is wound up, the corresponding second rectangular rod 22 moves down and disengages from the third rectangular groove 31, the corresponding second spring 28 is squeezed, and the pull rope 30 located at one side of the second rectangular groove 27 is loosened. Due to the action of the corresponding second spring 28, the second rectangular rod 22 on this side can be pushed up to connect with the second rectangular groove 27;

[0042] Then, the telescopic rod 4 is controlled to retract, and after the telescopic rod 4 is rotated to be stored in the placement slot 3, the rotating handle 36 can be rotated to limit the telescopic rod 4. When the telescopic rod 4 rotates, the fixed shaft 9 is driven to rotate, and the fixed shaft 9 loosens the connecting rope 10. Due to the action of the first spring 25, one end of the first rectangular rod 26 is pushed to slide into the first rectangular slot 29 to limit the rotating shaft 8.

[0043] Then start the motor 18, the motor 18 drives the second gear 21 to rotate, the second gear 21 drives the fixed cylinder 20 to rotate through the third gear 19, the fixed cylinder 20 drives the second rectangular rod 22 to rotate, the second rectangular rod 22 located in the second rectangular groove 27 drives the rotating rod 12 to rotate, the rotating rod 12 drives the turntable 7 to rotate, the turntable 7 drives the gear plate 14 to move, and when the gear plate 14 moves, it meshes with the gear ring 6 and can rotate, so that the tool in the tool cylinder 13 is heated more evenly.

[0044] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0045] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A multi-layer PVD coating device for convenient adjustment on a tool, comprising a coating machine housing (1) and a housing door (2), wherein a base (15) is arranged inside the coating machine housing (1), a rotating rod (12) is rotatably arranged on the base (15), and a multi-layer placement mechanism is fixedly sleeved on the rotating rod (12), characterized in that: A fixed shell (5) is fixedly installed on the front side of the coating machine housing (1), a rotating shaft (8) is fixedly arranged in the housing door (2), and the rotating shaft (8) is rotatably connected to the fixed shell (5). A placement groove (3) is provided on the front side of the coating machine housing (1), and a supporting mechanism for supporting the housing door (2) is rotatably arranged in the placement groove (3), and a connecting rope (10) is fixedly wound on the supporting mechanism. A limiting mechanism for fixing the rotating shaft (8) is provided in one of the fixed housings (5), and one end of the connecting rope (10) is connected to the limiting mechanism. A slide rail (16) is fixedly connected to the bottom of the coating machine housing (1), and a slide groove for sliding with the slide rail (16) is provided at the lower end of the base (15). A connecting groove is provided in one of the slide rails (16), a first gear (33) is rotatably connected in the connecting groove, a latching tooth (32) meshing with the first gear (33) is fixedly connected to the side wall of the slide groove, a cavity (35) is provided in the coating machine housing (1), two fixed cylinders (20) are rotatably mounted on the upper wall of the cavity (35), a connecting mechanism is provided in the fixed cylinder (20), one of the connecting mechanisms is used to connect the rotating rod (12), and the other connecting mechanism is used to connect the first gear (33), both ends of the rotating shaft (8) are fixedly connected with a storage mechanism for controlling the connecting mechanism, the two storage mechanisms are respectively connected to the two connecting mechanisms, and a power mechanism for controlling the fixed cylinder (20) is fixedly mounted in the cavity (35); The connecting mechanism comprises a second rectangular rod (22) which penetrates and slides through the fixed cylinder (20); a second spring (28) is fixedly arranged between the second rectangular rod (22) and the inside of the fixed cylinder (20); a second rectangular groove (27) connected to one of the second rectangular rods (22) is formed at the lower end of the rotating rod (12); and a third rectangular groove (31) connected to another second rectangular rod (22) is formed at the lower end of the first gear (33); The storage mechanism comprises a wire winding drum (23) fixedly connected to the end of the rotating shaft (8), a pull rope (30) is fixedly wound on the wire winding drum (23), and two pull ropes (30) are respectively fixedly connected to two second rectangular rods (22).

2. A conveniently adjustable multi-layer PVD coating device for cutting tools according to claim 1, characterized in that: The support mechanism comprises a telescopic rod (4) located in the placement groove (3), a fixed shaft (9) passing through the telescopic rod (4), the fixed shaft (9) being rotatably connected to the side wall of the placement groove (3), a limit block (11) abutting against the telescopic rod (4) being fixedly connected to the outer side of the box door (2), and one end of the connecting rope (10) being fixedly wound and connected to the fixed shaft (9).

3. The multi-layer PVD coating device for convenient adjustment on a tool according to claim 2, characterized in that: A sliding cavity (24) is provided inside one of the fixed shells (5), the limiting mechanism comprises a first rectangular rod (26) slidably connected to the sliding cavity (24), a first spring (25) is fixedly arranged between the first rectangular rod (26) and the sliding cavity (24), one end of the rotating shaft (8) is provided with a first rectangular groove (29) connected to the first rectangular rod (26), and the other end of the connecting rope (10) is fixedly wound and connected to the first rectangular rod (26).

4. The multi-layer PVD coating device for convenient adjustment on a tool according to claim 1, characterized in that: The power mechanism comprises a motor (18) fixedly mounted at the bottom of the cavity (35); an output end of the motor (18) is fixedly connected to a second gear (21); and both sides of the second gear (21) are meshingly connected to third gears (19) fixedly sleeved on the outside of a fixed cylinder (20).

5. The multi-layer PVD coating device for convenient adjustment on a tool according to claim 1, characterized in that: A connecting rail (17) matching the slide groove is fixedly connected to the inner side of the box door (2).

6. The multi-layer PVD coating device for convenient adjustment on a tool according to claim 1, characterized in that: The placement mechanism comprises a rotating disk (7) fixedly sleeved on a rotating rod (12), a plurality of gear disks (14) being rotatably connected to the rotating disk (7), a tool cylinder (13) being fixedly arranged on the gear disk (14), a toothed ring (6) meshing with the gear disk (14) being rotatably sleeved on the outer side of the rotating rod (12), and a placement rod (34) fixedly connected to a base (15) being fixedly connected to one side of the toothed ring (6).

7. The multi-layer PVD coating device for convenient adjustment on a tool according to claim 2, characterized in that: The front side of the coating machine housing (1) is rotatably connected to a rotating handle (36) for limiting the position of the telescopic rod (4).

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