Vacuum coating device capable of carrying out PVD (Physical Vapor Deposition) coating on cutter

Abstract

The utility model belongs to the technical field of machining, particularly relates to a vacuum coating device capable of performing PVD (Physical Vapor Deposition) coating on a cutter, and aims to solve the problem that the applicability of the coating device is seriously limited due to the fact that only cutters with the same specification can be fixed when the vacuum coating device is used because a placing hole in the conventional vacuum coating device is in a fixed size. According to the scheme, the vacuum coating device comprises a vacuum coating device body, and a cutter uniform coating assembly and a cutter fixing assembly which are located in the vacuum coating device body; the cutter fixing assembly comprises a fixing base; the friction force between the cutter and the fixing block can be increased through the arranged cutter fixing assembly and the matched non-slip mat, the cutter is prevented from sliding in the coating process, and the arrangement solves the problems that due to the fact that a containing hole in an existing vacuum coating device is of a fixed size, only cutters of the same specification can be fixed in the using process, and the use cost is reduced. And therefore, the applicability of the coating device is seriously limited.

Description

Technical Field

[0001] The utility model relates to a vacuum coating device, in particular to a vacuum coating device which can perform PVD coating on a cutting tool, and belongs to the technical field of mechanical processing. Background Art

[0002] PVD, or physical vapor deposition technology, refers to the technology of using physical methods under vacuum conditions to vaporize the surface of the material source into gaseous atoms or molecules, or partially ionize it into ions, and deposit a thin film with certain special functions on the surface of the substrate through a low-pressure gas or plasma process. When processing the tool, the surface of the tool needs to be treated with PVD coating, which requires the use of a vacuum coating device.

[0003] In the prior art, a tool vacuum coating fixture disclosed in announcement number CN204874724U includes a base, a groove is provided on the upper surface of the base, a through hole for placing a bearing is provided in the center of the base, and at least one tool placement hole for placing a tool is provided on the upper surface of the base.

[0004] In the prior art solution, the tool to be processed is placed in the tool placement hole, clamped by a jig, and then vacuum coated. However, in actual use, the placement hole of the above patent is of fixed size, resulting in that only tools of the same specification can be fixed during use, which seriously limits the applicability of the coating device. Utility Model Content

[0005] In order to solve the problem that the placement holes have fixed sizes, which often results in only being able to fix tools of the same specification during use, thus severely limiting the applicability of the coating device, the utility model provides a vacuum coating device capable of performing PVD coating on the tools.

[0006] The utility model achieves the above-mentioned purpose through the following technical solutions: a vacuum coating device capable of performing PVD coating on a tool, comprising a vacuum coating device body, and a tool uniform coating component and a tool fixing component located inside the vacuum coating device body;

[0007] The tool fixing assembly includes a fixed base, an adjusting block is rotatably installed on one side of the fixed base, a rotating shaft is fixedly connected to one side of the adjusting block, a first bevel gear is fixedly connected to the end of the rotating shaft, a second bevel gear is meshed with the bottom of the first bevel gear, a first connecting block is fixedly connected to the top of the second bevel gear, the left and right sides of the first connecting block are hinged with second connecting blocks, the other ends of the two groups of second connecting blocks are hinged to a limiting base, a connecting block is welded on the top of the limiting base, a fixed block is fixedly installed on one side of the connecting block, and an anti-slip pad is bonded to the inside of the fixed block.

[0008] As a further solution of the utility model: a guide groove is provided on the surface of the fixed base.

[0009] As a further solution of the utility model: the tool uniform coating assembly includes a first driving wheel, which is rotatably installed inside the vacuum coating device body, and the first driven wheels are meshed on both the left and right sides of the first driving wheel.

[0010] As a further solution of the utility model: the second driving wheels are rotatably mounted on the surfaces of the two groups of first driven wheels, and four groups of second driven wheels are meshed around the second driving wheels.

[0011] As a further solution of the utility model: the fixed base is fixedly installed on the upper surface of the second driven wheel, and eight groups of fixed bases are installed inside the vacuum coating device body.

[0012] As a further solution of the utility model: a vacuum air pump is fixedly installed on one side of the vacuum coating device body, and a warehouse door is installed on the surface of the vacuum coating device body.

[0013] As a further solution of the utility model: an observation window is arranged on the surface of the warehouse door, and a handle is fixedly installed on the top of the warehouse door.

[0014] The beneficial effects of the utility model are:

[0015] 1. The utility model provides a tool fixing assembly, which, in combination with the anti-skid pad, can increase the friction between the tool and the fixing block, thereby preventing the tool from sliding during the coating process. This arrangement improves the problem that the placement holes inside the existing vacuum coating device are of fixed size, which often results in only being able to fix tools of the same specification during use, thus severely limiting the applicability of the coating device;

[0016] 2. The utility model provides a tool uniform coating component, which helps to make the tool rotate while also revolving inside the vacuum coating device body, so that multiple tools can be coated at the same time, and the uniformity of the coating thickness can be ensured, thereby improving production efficiency and quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the structure of the tool uniform coating assembly of the utility model;

[0019] Figure 3 This is a schematic diagram of the structure of the tool fixing assembly of the utility model;

[0020] Figure 4 It is a schematic diagram of the internal structure of the fixed base of the utility model.

[0021] In the figure: 1. Vacuum coating device body; 2. Vacuum air pump; 3. Observation window; 4. Tool uniform coating assembly; 401. First driving wheel; 402. First driven wheel; 403. Second driving wheel; 404. Second driven wheel; 5. Tool fixing assembly; 501. Fixed base; 502. Connecting block; 503. Adjusting block; 504. Guide groove; 505. Fixed block; 506. Anti-slip pad; 507. Rotating shaft; 508. First bevel gear; 509. Second bevel gear; 510. First connecting block; 511. Second connecting block; 512. Limiting base; 6. Handle; 7. Warehouse door. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model. Embodiment 1

[0023] like Figures 1 to 4 As shown, a vacuum coating device capable of performing PVD coating on a tool comprises a vacuum coating device body 1, and a tool uniform coating component 4 and a tool fixing component 5 located inside the vacuum coating device body 1;

[0024] The tool fixing assembly 5 includes a fixed base 501, an adjusting block 503 is rotatably installed on one side of the fixed base 501, a rotating shaft 507 is fixedly connected to one side of the adjusting block 503, a first bevel gear 508 is fixedly connected to the end of the rotating shaft 507, a second bevel gear 509 is meshed at the bottom of the first bevel gear 508, a first connecting block 510 is fixedly connected above the second bevel gear 509, the left and right sides of the first connecting block 510 are hinged with second connecting blocks 511, the other ends of the two groups of second connecting blocks 511 are hinged to a limiting base 512, a connecting block 502 is welded on the top of the limiting base 512, a fixed block 505 is fixedly installed on one side of the connecting block 502, and the fixed block 50 5 is bonded with an anti-skid pad 506; the rotating adjustment block 503 drives the rotating shaft 507, the first bevel gear 508 and the second bevel gear 509 to rotate, thereby driving the first connecting block 510, the second connecting block 511, the limiting base 512, the connecting block 502 and the fixing block 505 to move inward, so as to limit and fix the tools of different sizes. The anti-skid pad 506 provided in combination can increase the friction between the tool and the fixing block 505 to prevent the tool from sliding during the coating process. This arrangement improves the problem that the placement hole inside the existing vacuum coating device is of fixed size, resulting in that only tools of the same specification can be fixed during use, thereby seriously limiting the applicability of the coating device. Embodiment 2

[0025] In addition to all the technical features of the first embodiment, this embodiment also includes:

[0026] A guide groove 504 is provided on the surface of the fixed base 501 , and the guide groove 504 can play a guiding role to ensure the accuracy and stability of the adjustment.

[0027] The tool uniform coating assembly 4 includes a first driving wheel 401, which is rotatably installed inside the vacuum coating device body 1, and the first driven wheels 402 are meshed on both sides of the first driving wheel 401; the motor at the bottom of the driving wheel is started to rotate the first driving wheel 401, thereby driving the two sets of first driven wheels 402 to rotate.

[0028] The second driving wheels 403 are rotatably mounted on the surfaces of the two sets of first driven wheels 402. Four sets of second driven wheels 404 are meshed around the second driving wheels 403. Starting the motor inside the driven wheels makes the two sets of second driving wheels 403 rotate, thereby driving multiple sets of second driven wheels 404 to rotate. Embodiment 3

[0029] In addition to all the technical features of the first embodiment, this embodiment also includes:

[0030] The fixed base 501 is fixedly installed on the upper surface of the second driven wheel 404, and eight groups of fixed bases 501 are installed inside the vacuum coating device body 1; multiple groups of fixed bases 501 are installed at the same time to achieve simultaneous coating of multiple tools, greatly improving production efficiency.

[0031] A vacuum air pump 2 is fixedly installed on one side of the vacuum coating device body 1, and a compartment door 7 is installed on the surface of the vacuum coating device body 1; the use of the vacuum air pump 2 can maintain a high vacuum environment inside the vacuum coating device body 1 during the coating process, effectively avoiding the influence of air and other impurities on the coating quality, and ensuring the purity and firmness of the coating.

[0032] An observation window 3 is provided on the surface of the door 7, and a handle 6 is fixedly installed on the top of the door 7; the setting of the observation window 3 enables the operator to observe the coating process intuitively, so as to find problems and adjust parameters in time.

[0033] Working principle: When using the vacuum coating device that can perform PVD coating on the tool, first hold the handle 6 to open the door 7, and fix the tool that needs to be vacuum coated. Through the provided tool fixing assembly 5, place the tool on the fixed base 501, and rotate the adjustment block 503 to drive the rotating shaft 507, the first bevel gear 508 and the second bevel gear 509 to rotate, thereby driving the first connecting block 510, the second connecting block 511, the limiting base 512, the connecting block 502 and the fixing block 505 to move inward, so as to complete the limiting and fixing of tools of different sizes. The anti-slip pad 506 provided can increase the friction between the tool and the fixing block 505 to prevent the tool from sliding during the coating process. This setting improves the problem that the placement hole inside the existing vacuum coating device is of fixed size, resulting in that only tools of the same specification can be fixed during use, thereby seriously limiting the applicability of the coating device. The tool uniform coating component 4 starts the motor at the bottom of the driving wheel to rotate the first driving wheel 401, thereby driving the two groups of first driven wheels 402 to rotate, and at the same time starts the motor inside the driven wheel to make the two groups of second driving wheels 403, thereby driving multiple groups of second driven wheels 404 to rotate. This arrangement helps to make the tool rotate while also revolving inside the vacuum coating device body 1, so that multiple tools can be coated at the same time, and the uniformity of coating thickness can be ensured, thereby improving production efficiency and quality. After the tool is fixed, the compartment door 7 is closed to ensure that the compartment door 7 is well sealed. Subsequently, the vacuum air pump 2 is started to start vacuuming the inside of the vacuum coating device body 1 until a predetermined vacuum degree is reached, and the coating material is evaporated and deposited on the tool surface by heating. When the coating meets the predetermined requirements, the vacuum air pump 2 is turned off, and the coated tool is taken out after the internal pressure of the vacuum coating device body 1 gradually returns to atmospheric pressure.

[0034] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0035] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A vacuum coating device for PVD coating of cutting tools, characterized in that: It comprises a vacuum coating device body (1), and a tool uniform coating component (4) and a tool fixing component (5) located inside the vacuum coating device body (1); The tool fixing assembly (5) comprises a fixed base (501), an adjusting block (503) is rotatably mounted on one side of the fixed base (501), a rotating shaft (507) is fixedly connected to one side of the adjusting block (503), a first bevel gear (508) is fixedly connected to the end of the rotating shaft (507), a second bevel gear (509) is meshed at the bottom of the first bevel gear (508), a first connecting block (510) is fixedly connected above the second bevel gear (509), second connecting blocks (511) are hingedly connected to the left and right sides of the first connecting block (510), the other ends of two groups of the second connecting blocks (511) are hingedly connected to a limiting base (512), a connecting block (502) is welded to the top of the limiting base (512), a fixing block (505) is fixedly mounted on one side of the connecting block (502), and an anti-slip pad (506) is bonded inside the fixing block (505).

2. The vacuum coating device for performing PVD coating on a tool according to claim 1, characterized in that: A guide groove (504) is provided on the surface of the fixed base (501).

3. The vacuum coating device for performing PVD coating on a tool according to claim 1, characterized in that: The tool uniform coating assembly (4) comprises a first driving wheel (401), the first driving wheel (401) being rotatably mounted inside the vacuum coating device body (1), and first driven wheels (402) being meshed on both left and right sides of the first driving wheel (401).

4. The vacuum coating device for performing PVD coating on a tool according to claim 3, characterized in that: The surfaces of the two groups of the first driven wheels (402) are rotatably mounted with second driving wheels (403), and the periphery of the second driving wheel (403) is meshed with four groups of second driven wheels (404).

5. The vacuum coating device for performing PVD coating on a tool according to claim 1, characterized in that: The fixed base (501) is fixedly mounted on the upper surface of the second driven wheel (404), and eight groups of fixed bases (501) are installed inside the vacuum coating device body (1).

6. The vacuum coating device for performing PVD coating on a tool according to claim 1, characterized in that: A vacuum air pump (2) is fixedly mounted on one side of the vacuum coating device body (1), and a chamber door (7) is mounted on the surface of the vacuum coating device body (1).

7. The vacuum coating device for performing PVD coating on a tool according to claim 6, characterized in that: An observation window (3) is provided on the surface of the warehouse door (7), and a handle (6) is fixedly mounted on the top of the warehouse door (7).

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