PVD coating fixture

Abstract

The utility model discloses a kind of clamps for PVD coating, comprising: pedestal and at least one clamp component, the clamp component includes clamping body and magnetic piece, the clamping body is installed to the pedestal, the magnetic piece is installed to the clamping body, and it is used to be handled cutting insert and be fixed on the clamping body. Thus, by setting magnetic piece on clamping body, so that clamp component can be fixed by the mode of magnetic attraction cutting insert, without needing to be aligned with cutting insert and be operated, it is favorable to reduce the operational requirement of artificial, so as to be favorable to improve the assembly convenience of cutting insert and clamp component, and the assembly reliability of cutting insert can be affected due to improper manual operation, and effectively reduce the risk that cutting insert falls off from clamp component.

Description

Technical Field

[0001] This utility model relates to the field of PVD coating technology, and in particular to a fixture for PVD coating. Background Technology

[0002] Coating fixtures are used to clamp indexable cutting tools, allowing them to enter a coating furnace and be coated with a metal film for a specific purpose under certain conditions.

[0003] In related technologies, coating fixtures typically use elastic clamps to hold cutting blades. This clamping method requires a high degree of manual operation. The cutting blade needs to be aligned with the clamping position and then pushed further into the fixture to be clamped. If the fixture fails to reliably clamp the cutting blade during manual operation, it is easy for the cutting blade to fall off the fixture and enter the coating furnace during the coating process, resulting in loss. Utility Model Content

[0004] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes a PVD coating fixture, which facilitates the assembly of cutting blades and helps reduce the manual operation requirements.

[0005] A PVD coating fixture according to an embodiment of the present invention includes: a base and at least one fixture assembly. The fixture assembly includes a clamping body and a magnetic element. The clamping body is mounted on the base, and the magnetic element is mounted on the clamping body and is used to fix the cutting blade to be processed on the clamping body.

[0006] According to the PVD coating fixture of the present invention, by setting a magnetic component on the clamping body, the fixture assembly can fix the cutting blade by magnetic attraction, eliminating the need for operations such as aligning and locking the cutting blade. This reduces the manual operation requirements, thereby improving the assembly convenience of the cutting blade and the fixture assembly. It also avoids affecting the assembly reliability of the cutting blade due to improper manual operation and effectively reduces the risk of the cutting blade falling off the fixture assembly.

[0007] According to some embodiments of the present invention, the number of magnetic components is multiple, and at least a portion of the magnetic components are arranged in the height direction of the base.

[0008] According to some embodiments of the present invention, the clamping body includes: a body portion defining a receiving cavity having at least one opening, the magnetic element being adapted to be installed in the receiving cavity through the opening; and at least one cover plate detachably disposed on the body portion and covering the opening to enclose the magnetic element in the receiving cavity.

[0009] According to some embodiments of the present invention, the cover plate has a first positioning part and a second positioning part disposed opposite to each other in a first direction. In the first direction, the magnetic element is located between the first positioning part and the second positioning part. The first positioning part and the second positioning part are used to orient the installation posture of the cutting blade.

[0010] According to some embodiments of the present invention, there are multiple accommodating cavities, with at least two accommodating cavities arranged in the first direction and located between the first positioning part and the second positioning part in the first direction, so that the magnetic elements disposed therein magnetically attract the cutting blade together.

[0011] According to some embodiments of the present invention, the cover plate is a rectangular plate, the first direction is the width direction of the cover plate; the first positioning part and the second positioning part are disposed on both sides of the cover plate in the width direction, and both form positioning notches.

[0012] According to some embodiments of the present invention, the accommodating cavity is disposed through the thickness direction of the body portion to form the openings on both sides of the thickness direction of the body portion, and at least two cover plates are respectively disposed on both sides of the thickness direction of the body portion to cover the openings at corresponding positions.

[0013] According to some embodiments of the present invention, the clamp assembly further includes a mounting plate, which is magnetically attached to the side of the cover plate opposite to the main body, and the cutting blade is adapted to be magnetically attached to the side of the mounting plate opposite to the cover plate.

[0014] According to some embodiments of the present invention, the clamping body is provided with an airflow channel, which is provided through the thickness direction of the clamping body.

[0015] According to some embodiments of the present invention, the clamping body has a plurality of accommodating cavities, each accommodating cavity is provided with the magnetic element, at least some of the accommodating cavities are arranged at intervals in a second direction, the second direction being angularly arranged with respect to the thickness direction of the clamping body; wherein, in the second direction, an airflow channel is provided between two adjacent accommodating cavities, the airflow channel being directly opposite to or offset from the accommodating cavity along the second direction.

[0016] According to some embodiments of the present invention, the airflow channel includes: a first connecting segment and two second connecting segments, the two second connecting segments connecting the two ends of the first connecting segment, and the first connecting segment communicating with the external space through the two second connecting segments; wherein, the clamping body is a cuboid structure, the first connecting segment is located in the middle of the clamping body in the width direction, the second connecting segments extend along the width direction of the clamping body, and the middle of the extension direction of the second connecting segments communicates with the first connecting segment.

[0017] According to some embodiments of the present invention, the base includes: a mounting frame and at least one rotating base. The rotating base is rotatably disposed on the mounting frame. The rotating base includes an upper support plate and a lower support plate. A plurality of clamping assemblies are provided between the upper support plate and the lower support plate. The plurality of clamping assemblies are rotatable relative to the upper support plate and the lower support plate and are arranged with their rotation axes parallel.

[0018] According to some embodiments of the present invention, the clamping assembly further includes a transmission member, which is disposed at one end of the clamping body. A driving member is provided on the mounting frame, and the driving member is adapted to cooperate with the transmission member to drive the clamping assembly to rotate relative to the upper support plate and the lower support plate.

[0019] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0020] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which: Figure 1 This is a schematic diagram of the assembly of the PVD coating fixture and the cutting blade according to an embodiment of the present invention; Figure 2 This is a schematic diagram of the assembly of the clamping assembly and the cutting blade according to an embodiment of the present utility model; Figure 3 This is a schematic diagram of the structure of the PVD coating fixture described in an embodiment of the present invention; Figure 4 This is a schematic diagram of the fixture assembly described in an embodiment of the present invention; Figure 5 This is an exploded view of the furniture components described in an embodiment of the present invention.

[0021] Figure label: PVD coating fixture 100 Base 110, Mounting frame 111 Rotating base 112, upper support plate 1121, lower support plate 1122 Fixture assembly 120 Clamping body 121, main body 1211, accommodating cavity a, Cover plate 1212, first positioning part 1213, second positioning part 1214 Magnetic component 122 Mounting plate 123 Airflow channel 124, first connecting segment 1241, second connecting segment 1242 Transmission component 125, connecting shaft 126, threaded hole 127 Cutting insert 200. Detailed Implementation

[0022] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0023] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential," etc., indicating the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, features defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more. In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0024] It should be noted that "PVD" refers to Physical Vapor Deposition, which is a material surface treatment technology. The core of this technology involves converting solid materials (i.e., the target material, such as titanium, chromium, titanium oxide, or other metallic or ceramic materials) into gaseous particles (atoms, molecules, or ions) in a vacuum environment using physical methods. These gaseous particles then travel to the surface of the cutting tool to be treated in the vacuum environment and deposit there, ultimately forming a thin film, which is the PVD coating. The vacuum environment is created inside a coating furnace.

[0025] PVD coating fixtures refer to tooling installed in the vacuum environment created inside the coating furnace. They not only support and fix the cutting blades, but also drive the cutting blades to rotate, ensuring the uniformity of the coating formed on the cutting blades.

[0026] The following reference Figures 1-5 Description of a PVD coating fixture 100 according to an embodiment of the present invention.

[0027] Combination Figure 1 , Figure 2 and Figure 5 According to an embodiment of the present invention, a PVD coating fixture 100 includes a base 110 and at least one fixture assembly 120. The fixture assembly 120 includes a clamping body 121 and a magnetic element 122. The clamping body 121 is mounted on the base 110, and the magnetic element 122 is mounted on the clamping body 121 and is used to fix the cutting blade 200 to be processed on the clamping body 121.

[0028] For example, the clamping body 121 can serve as a mounting carrier for the magnetic component 122. On the one hand, it can provide space for mounting the magnetic component 122, and on the other hand, it can support the magnetic component 122, which facilitates the assembly of the magnetic component 122 and improves the assembly reliability of the magnetic component 122. The magnetic component 122 is mounted on the clamping body 121 and can provide magnetic attraction, so as to fix the cutting blade 200 to be processed on the clamping body 121 by magnetic attraction. This helps to reduce the difficulty of manual operation and thus improves the assembly convenience of the cutting blade 200 and the clamping assembly 120.

[0029] Furthermore, the clamping assembly 120 can be mounted on the base 110 via the clamping body 121. The base 110 can support the clamping assembly 120 to improve the assembly reliability of the clamping assembly 120. The base 110 can drive the clamping assembly 120 to rotate, and the clamping assembly 120 can drive the cutting blade 200 fixed thereon to rotate, so that the cutting blade 200 can fully contact the gaseous particles, which is beneficial to forming a uniform PVD coating on the cutting blade 200.

[0030] Optionally, the PVD coating fixture 100 may have one fixture assembly 120, or the PVD coating fixture 100 may have two, three, or more fixture assemblies 120. The specific number of fixture assemblies 120 can be determined according to actual production needs and is not specifically limited here.

[0031] In related technologies, coating fixtures typically use elastic clamps to hold cutting blades. This clamping method requires a high degree of manual operation. The cutting blade needs to be aligned with the clamping position and then pushed further into the fixture to be clamped. If the fixture fails to reliably clamp the cutting blade during manual operation, it is easy for the cutting blade to fall off the fixture and enter the coating furnace during the coating process, resulting in loss.

[0032] This application provides a magnetic element 122 on the clamping body 121, so that the clamping assembly 120 can fix the cutting blade 200 by magnetic attraction, eliminating the need for operations such as aligning and locking the cutting blade 200. This reduces the manual operation requirements, thereby improving the ease of assembly between the cutting blade 200 and the clamping assembly 120. It also avoids affecting the assembly reliability of the cutting blade 200 due to improper manual operation and effectively reduces the risk of the cutting blade 200 falling off the clamping assembly 120.

[0033] In some specific embodiments, the magnetic element 122 may be configured as a high-temperature resistant magnet.

[0034] In some embodiments of this utility model, there are multiple magnetic elements 122, and at least a portion of the magnetic elements 122 are arranged in the height direction of the base 110.

[0035] It should be noted that the height direction of the base 110 is parallel to the height direction of the clamping body 121.

[0036] In some examples, multiple magnetic elements 122 can be arranged sequentially on the clamping body 121 along the height direction of the base 110, and each magnetic element 122 can be used to fix a cutting blade 200. That is, multiple cutting blades 200 can be fixed on the clamping assembly 120 so that multiple cutting blades 200 can be coated at the same time, which is beneficial to improving the production efficiency of the cutting blades 200.

[0037] In other examples, some of the multiple magnetic elements 122 can be arranged along the height direction of the base 110, and another part of the multiple magnetic elements 122 can be arranged along the width direction of the clamping body 121. It can also be understood that the multiple magnetic elements 122 are arranged in an array on the clamping body 121. Each magnetic element 122 can be used to fix a cutting blade 200, or every two adjacent magnetic elements 122 can jointly fix a cutting blade 200, so that multiple cutting blades 200 can be coated at the same time, which is beneficial to improving the production efficiency of the cutting blades 200.

[0038] It is understood that the above arrangement of the multiple magnetic components 122 is merely an example for ease of understanding and should not be construed as a limitation of this application. The specific arrangement of the multiple magnetic components 122 can be determined according to actual production requirements and is not specifically limited here.

[0039] Combination Figure 4 and Figure 5 In some embodiments of the present invention, the clamping body 121 includes: a body portion 1211 and at least one cover plate 1212. The body portion 1211 defines a receiving cavity a, the receiving cavity a having at least one opening. The magnetic element 122 is adapted to be installed in the receiving cavity a through the opening. The cover plate 1212 is detachably disposed on the body portion 1211 and covers the opening to enclose the magnetic element 122 in the receiving cavity a.

[0040] In some examples, the receiving cavity a can be provided through the body portion 1211 along the thickness direction of the body portion 1211. That is, the receiving cavity a can have two openings. The magnetic element 122 can be installed in the receiving cavity a through either of the two openings. The two ends of the magnetic element 122 can be exposed through the two openings and are flush with the side wall of the body portion 1211. The two ends of the magnetic element 122 can respectively serve to magnetically fix the cutting blade 200, so that the cutting blade 200 can be assembled on both sides of the clamping body 121. This can effectively increase the number of cutting blades 200 that can be assembled in the clamping assembly 120, thereby improving the production efficiency of the cutting blade 200.

[0041] Considering that the magnetic component 122 can easily come out through the opening of the accommodating cavity a, cover plates 1212 can be provided on both sides of the main body 1211. Each cover plate 1212 can block the opening of the accommodating cavity a on the same side as it, so as to enclose the magnetic component 122 in the accommodating cavity a, prevent the magnetic component 122 from coming out through the opening of the accommodating cavity a, and improve the assembly reliability of the magnetic component 122.

[0042] In other examples, the receiving cavity a can be formed as a groove structure recessed along the thickness direction of the body portion 1211. That is, the receiving cavity a has an opening, and the magnetic component 122 can be installed in the receiving cavity a through the opening of the receiving cavity a. Since the receiving cavity a only has one opening, a cover plate 1212 can be provided on the side of the body portion 1211 where the opening of the receiving cavity a is formed to block the opening of the receiving cavity a, prevent the magnetic component 122 from coming out through the opening of the receiving cavity a, and improve the assembly reliability of the magnetic component 122. At the same time, since the other side of the body portion 1211 does not need to be provided with a cover plate 1212, the material used for clamping body 121 can be effectively reduced, the production cost of PVD coating fixture 100 can be reduced, and the assembly steps of clamping body 121 can be simplified, thereby improving the production and assembly efficiency of PVD coating fixture 100.

[0043] Combination Figure 2 and Figure 5 In some embodiments of this utility model, the cover plate 1212 has a first positioning part 1213 and a second positioning part 1214 disposed opposite to each other in a first direction. In the first direction, the magnetic element 122 is located between the first positioning part 1213 and the second positioning part 1214. The first positioning part 1213 and the second positioning part 1214 are used to orient the installation posture of the cutting blade 200.

[0044] It should be noted that "first direction" can be understood as the width direction of the fixture assembly 120. For a specific direction diagram, please refer to [reference needed]. Figure 2 As shown.

[0045] For example, considering that after the cover plate 1212 covers the opening of the receiving cavity a and seals the magnetic component 122 in the receiving cavity a, the cover plate 1212 will block the magnetic component 122, and the setting position of the magnetic component 122 cannot be directly observed when the cutting blade 200 is installed on the clamping body 121. Therefore, a first positioning part 1213 and a second positioning part 1214 are provided on the cover plate 1212. The first positioning part 1213 and the second positioning part 1214 are arranged opposite to each other and spaced apart in the first direction. The magnetic component 122 is disposed between the first positioning part 1213 and the second positioning part 1214. The cutting blade 200 is then installed... When mounted on the clamping body 121, the setting position of the magnetic component 122 can be determined by the first positioning part 1213 and the second positioning part 1214, so as to determine the installation position of the cutting blade 200. Furthermore, the two ends of the cutting blade 200 in its length direction can be oriented toward the first positioning part 1213 and the second positioning part 1214 respectively, so as to orient the installation posture of the cutting blade 200 and avoid the installation of the remaining cutting blades 200 being affected by the incorrect installation direction of one of the multiple cutting blades 200. This is beneficial to improving the assembly convenience of the cutting blade 200.

[0046] Reference Figure 5 In some embodiments of this utility model, there are multiple accommodating cavities a, with at least two accommodating cavities a arranged in a first direction and located between the first positioning part 1213 and the second positioning part 1214 in the first direction, so that the magnetic element 122 disposed therein magnetically adsorbs the cutting blade 200 together.

[0047] For example, at least two of the plurality of accommodating cavities a are arranged in a first direction. For instance, the plurality of accommodating cavities a can be divided into two rows arranged along the height direction of the body portion 1211. The two rows of accommodating cavities a are arranged in the first direction and located between the first positioning portion 1213 and the second positioning portion 1214. It can also be understood that each pair of accommodating cavities a arranged in the first direction is respectively provided with the first positioning portion 1213 and the second positioning portion 1214. A plurality of cutting blades 200 can be installed on the clamp assembly 120. Each cutting blade 200 can have its installation position determined by the first positioning portion 1213 and the second positioning portion 1214, and can be fixed by the magnetic element 122 provided in the two accommodating cavities a between the first positioning portion 1213 and the second positioning portion 1214.

[0048] Among them, the magnetic components 122 in the two accommodating cavities a arranged along the first direction can be respectively positioned opposite to the two ends of the cutting blade 200 in the length direction, and the two ends of the cutting blade 200 in the length direction can be magnetically fixed. This can ensure the assembly reliability of the cutting blade 200 and reduce the risk of the cutting blade 200 falling off. On the other hand, it can reduce the material used for the magnetic components 122 and reduce the production cost of the fixture assembly 120.

[0049] like Figure 5 As shown, in some embodiments of this utility model, the cover plate 1212 is a rectangular plate, and the first direction is the width direction of the cover plate 1212; the first positioning part 1213 and the second positioning part 1214 are provided on both sides of the cover plate 1212 in the width direction, and both form positioning notches.

[0050] For example, the first positioning part 1213 and the second positioning part 1214 can be configured as positioning notches recessed inward from the edge of the cover plate 1212 along the first direction. When the cutting blade 200 is assembled onto the clamping body 121, the setting position of the magnetic component 122 can be determined by observing the setting position of the positioning notch, thereby determining the assembly position of the cutting blade 200. This is beneficial to improving the assembly convenience of the cutting blade 200 and reducing the manual operation requirements. At the same time, by configuring the first positioning part 1213 and the second positioning part 1214 as positioning notches, it is also beneficial to reduce the material used in the cover plate 1212 and facilitate the lightweight design of the clamping assembly 120.

[0051] Combination Figure 4 and Figure 5 In some embodiments of the present invention, the accommodating cavity a is provided through the thickness direction of the body portion 1211 to form openings on both sides of the thickness direction of the body portion 1211, and at least two cover plates 1212 are respectively provided on both sides of the thickness direction of the body portion 1211 to cover the openings at the corresponding positions.

[0052] For example, the accommodating cavity a can be provided through the body portion 1211 along the thickness direction of the body portion 1211. That is, the accommodating cavity a can have two openings. The magnetic component 122 can be installed in the accommodating cavity a through either of the two openings. Cover plates 1212 can be provided on both sides of the body portion 1211 respectively. Each cover plate 1212 can block the opening of the accommodating cavity a on the same side as it, so as to enclose the magnetic component 122 in the accommodating cavity a, prevent the magnetic component 122 from coming out through the opening of the accommodating cavity a, and improve the assembly reliability of the magnetic component 122.

[0053] The magnetic component 122 has two ends that can magnetically hold and fix the cutting blade 200, so that the clamping body 121 can be equipped with the cutting blade 200 on both sides in the thickness direction, which effectively increases the number of cutting blades 200 that can be assembled in the clamping assembly 120, thereby improving the production efficiency of the cutting blade 200.

[0054] Reference Figure 5 In some embodiments of this utility model, the cover plate 1212 is detachably connected to the body portion 1211.

[0055] For example, threaded holes 127 can be provided at both ends of the cover plate 1212 in the height direction and at both ends of the body portion 1211 in the height direction. The threaded holes 127 on the cover plate 1212 and the threaded holes 127 on the body portion 1211 can be arranged opposite to each other in the thickness direction of the clamping body 121. Threaded connectors (such as screws) can pass through the threaded holes 127 to fix the cover plate 1212 and the body portion 1211. When the magnetic component 122 fails, the cover plate 1212 can be removed from the body portion 1211, and the failed magnetic component 122 can be removed from the accommodating cavity a and replaced with a new magnetic component 122. Thus, when the clamping effect of the clamping assembly 120 on the cutting blade 200 deteriorates, the magnetic component 122 can be replaced separately without replacing the entire clamping assembly 120, which helps to reduce the maintenance cost of the PVD coating clamp 100.

[0056] In some specific examples, threaded hole 127 can be configured as an M3 threaded hole.

[0057] Combination Figure 2 , Figure 4 and Figure 5In some embodiments of the present invention, the clamp assembly 120 further includes a mounting plate 123, which is magnetically attached to the side of the cover plate 1212 opposite to the body portion 1211.

[0058] For example, the mounting plate 123 is disposed on the side of the cover plate 1212 opposite to the body portion 1211, and the magnetic component 122 can magnetically fix the mounting plate 123 to improve the assembly convenience of the mounting plate 123. No additional assembly structure is required, which is beneficial to improving the production assembly efficiency of the fixture assembly 120 and reducing the production cost of the fixture assembly 120.

[0059] Furthermore, the cutting blade 200 is magnetically adsorbed onto the side of the mounting plate 123 facing away from the cover plate 1212. During the assembly process, the cutting blade 200 will rub against the surface of the clamping assembly 120, resulting in wear on the surface of the clamping assembly 120. By setting the mounting plate 123, the wear of the clamping assembly 120 can be formed on the mounting plate 123. When the wear is too high, the mounting plate 123 can be replaced separately. Since the mounting plate 123 is magnetically adsorbed onto the cover plate 1212, the ease of disassembly and assembly of the mounting plate 123 can be effectively improved, and the maintenance efficiency of the clamping assembly 120 can be improved.

[0060] Combination Figure 2 , Figure 4 and Figure 5 In some embodiments of this utility model, the clamping body 121 is provided with an airflow channel 124. The airflow channel 124 is provided through the thickness direction of the clamping body 121. The airflow can flow through the airflow channel 124 to both sides of the clamping body 121, which is beneficial to improve the uniformity of airflow distribution. This helps to reduce the risk of uneven coating thickness or composition deviation on the cutting blade 200 due to local airflow concentration differences.

[0061] Combination Figure 2 and Figure 5 In some embodiments of this utility model, the clamping body 121 has a plurality of accommodating cavities a, each accommodating cavity a is provided with a magnetic element 122, at least some of the accommodating cavities a are arranged at intervals in a second direction, the second direction is set at an angle to the thickness direction of the clamping body 121; wherein, in the second direction, an airflow channel 124 is provided between two adjacent accommodating cavities a, the airflow channel 124 is arranged directly opposite to or staggered from the accommodating cavity a along the second direction.

[0062] It should be noted that "second direction" can be understood as the height direction of the clamping body 121. For a specific direction diagram, please refer to [reference needed]. Figure 2 As shown.

[0063] In some examples, multiple accommodating cavities a are arranged at intervals in the second direction, and an airflow channel 124 can be provided between two adjacent accommodating cavities a in the second direction. The airflow channel 124 is positioned directly opposite the accommodating cavity a in the second direction. A cutting blade 200 is magnetically fixed on the surface of the clamping body 121 opposite to the accommodating cavity a. In other words, the airflow channel 124 is located between two adjacent cutting blades 200. Airflow can flow from one side of the clamping body 121 in the thickness direction to the other side through the airflow channel 124, and flow through the cutting blades 200 located on both sides of the airflow channel 124 in the second direction, so that the cutting blades 200 can make uniform and sufficient contact with the airflow, which is beneficial to improving the uniformity of the coating formed on the cutting blades 200.

[0064] In other examples, such as Figure 5 As shown, multiple accommodating cavities a are arranged on the clamping body 121 along the first and second directions, respectively. For example, the multiple accommodating cavities a can be divided into two rows arranged along the second direction. The magnetic elements 122 in the two accommodating cavities a arranged along the first direction can be respectively positioned opposite to the two ends of the cutting blade 200 along its length, magnetically fixing the two ends of the cutting blade 200. In this structure, there are four accommodating cavities a corresponding to two adjacent cutting blades 200, arranged in a rectangular pattern. Then, the airflow channel 124 can... The airflow channel 124 is positioned on the diagonal of the rectangle formed by the four accommodating cavities a, meaning it can be offset from the accommodating cavity a along the second direction. This ensures that the airflow channel 124 is located between adjacent cutting blades 200, and also ensures that the middle position of the airflow channel 124 is opposite to that of the cutting blade 200. This allows the airflow to preferentially flow through the middle position of the cutting blade 200 after exiting the airflow channel 124, avoiding uneven coating on the cutting blade 200 due to preferential contact between the middle position of the cutting blade 200 and the airflow.

[0065] Reference Figure 5 In some embodiments of this utility model, the airflow channel 124 includes: a first connecting section 1241 and two second connecting sections 1242, the two second connecting sections 1242 connecting the two ends of the first connecting section 1241, and the first connecting section 1241 communicating with the external space through the two second connecting sections 1242; wherein, the clamping body 121 is a cuboid structure, the first connecting section 1241 is located in the middle of the clamping body 121 in the width direction, the second connecting section 1242 extends along the width direction of the clamping body 121, and the middle of the extension direction of the second connecting section 1242 communicates with the first connecting section 1241.

[0066] It should be noted that "external space" can be understood as the vacuum environment in which the clamp assembly 120 is located.

[0067] For example, the clamping assembly 120 includes a clamping body 121 and a mounting plate 123. The clamping body 121 includes a body portion 1211 and a cover plate 1212. A receiving cavity a is formed on the body portion 1211 and extends through it in the thickness direction. Cover plates 1212 are respectively provided on both sides of the body portion 1211 in the thickness direction. Mounting plates 123 are respectively provided on the side of the cover plate 1212 away from the body portion 1211.

[0068] The first connecting segment 1241 is disposed through the clamping body 121 along the thickness direction. That is, the first connecting segment 1241 is disposed through the body portion 1211 and the cover plate 1212 respectively, and is located in the middle of the clamping body 121 in the width direction. Two second connecting segments 1242 are respectively formed on the mounting plate 123 located on the side of the cover plate 1212 away from the body portion 1211. The mounting plate 123 is formed as a rectangular body adapted to the clamping body 121. The second connecting segment 1242 can be formed as an elongated through hole extending along the width direction of the mounting plate 123. For example, it can be an elongated hole or a rectangular hole. Its extension direction is the same as the length direction of the cutting blade 200. The second connecting segment 1242 is connected to the first connecting segment 1241 in the middle of its extension direction.

[0069] Airflow enters the airflow channel 124 through one of the two second connecting sections 1242, and flows through the first connecting section 1241 to the other second connecting section 1242. During the process of airflow flowing from the first connecting section 1241 to the other second connecting section 1242, part of the airflow can flow from the middle of the second connecting section 1242 to both sides, so that the airflow can not only contact the middle position of the cutting blade 200, but also flow from the middle of the cutting blade 200 to both ends of the cutting blade 200 and contact it. This is beneficial to further improve the uniformity of the contact between the airflow and the cutting blade 200, thereby improving the uniformity of the coating formed on the cutting blade 200.

[0070] In some embodiments of this utility model, the clamping body, mounting plate 123 and transmission component 125 are all made of stainless steel that can withstand temperatures above 700°C, in order to improve the structural stability and high temperature resistance of the clamping body, mounting plate 123 and transmission component 125, which is beneficial to extending the service life of the clamping assembly 120.

[0071] In some embodiments of this utility model, the length of the main body 1211 can be 10mm-350mm, the width can be 5mm-20mm, and the thickness can be 2mm-20mm, so as to ensure the structural strength of the main body 1211 and at the same time provide sufficient arrangement space for the accommodating cavity a, the partial airflow channel 124 formed thereon, and other structures.

[0072] The dimensions of the cover plate 1212 can be determined based on the dimensions of the main body 1211, and are not specifically limited here.

[0073] In some embodiments of this utility model, the receiving cavity a can be formed as a circular hole, and the diameter of the receiving cavity a can be 5mm-20mm. Its specific size can be determined according to the size of the cutting blade 200, so as to adjust the density of the cutting blades 200 mounted on the fixture assembly 120 according to the size of the cutting blade 200, improve the space utilization of the fixture assembly 120, and improve the production efficiency of the cutting blade 200.

[0074] The diameter of the first connecting section 1241 can be 1mm-10mm to improve the smoothness of airflow through the first connecting section 1241, which is beneficial to improving the flow efficiency of airflow and to prevent the clamping body 121 from being unable to provide sufficient installation space due to the excessive size of the first connecting section 1241.

[0075] Combination Figures 1 to 3 In some embodiments of this utility model, the base 110 includes: a mounting frame 111 and at least one rotating base 112. The rotating base 112 is rotatably disposed on the mounting frame 111. The rotating base 112 includes an upper support plate 1121 and a lower support plate 1122. A plurality of clamping assemblies 120 are provided between the upper support plate 1121 and the lower support plate 1122. The plurality of clamping assemblies 120 are rotatable relative to the upper support plate 1121 and the lower support plate 1122 and their rotation axes are arranged parallel to each other.

[0076] For example, the mounting frame 111 can serve as a mounting carrier for the rotating substrate 112, supporting and forming the rotating substrate 112. Multiple clamping assemblies 120 are evenly spaced between the upper support plate 1121 and the lower support plate 1122 along the circumferential direction of the rotating substrate 112. Each clamping assembly 120 is provided with a connecting shaft 126, which can be located at both ends of the body portion 1211 in the height direction and rotatably connected to the upper support plate 1121 and the lower support plate 1122, respectively. The multiple clamping assemblies 120 can rotate relative to the rotating substrate 112, and the rotating substrate 112 can also drive the clamping assemblies 120 mounted thereon to rotate relative to the mounting frame 111. That is, the clamping assemblies 120 can not only rotate on their own axis but also revolve around the central axis, so that each surface of the cutting blade 200 has the opportunity to face the area with the highest concentration of gaseous particles emitted from the evaporation source and the highest deposition rate, which is beneficial to ensuring the uniformity of the coating formed on the cutting blade 200.

[0077] It should be noted that "evaporation source" refers to a device or area that emits gaseous particles in a vacuum environment.

[0078] The base 110 may include one or more rotating bases 112, and each rotating base 112 is provided with multiple clamping assemblies 120, and each clamping assembly 120 may be equipped with multiple cutting blades 200, which is beneficial to improving the production efficiency of the cutting blades 200.

[0079] In some specific embodiments, the diameter of the connecting shaft 126 can be 4 mm to adapt to the rotating base 110 which has a 4 mm diameter shaft hole for engaging with the connecting shaft 126; it is understood that the specific diameter setting of the connecting shaft 126 can be determined according to the size of the shaft hole on the rotating base 110, and is not specifically limited here.

[0080] like Figure 4 As shown, in some embodiments of the present invention, the clamp assembly 120 further includes a transmission member 125, which is disposed at one end of the clamping body 121. The mounting frame 111 is provided with a driving member (not shown), which is adapted to cooperate with the transmission member 125 to drive the clamp assembly 120 to rotate relative to the upper support plate 1121 and the lower support plate 1122.

[0081] For example, the transmission member 125 can be disposed between the main body 1211 and the connecting shaft 126 at one end, and the driving member is disposed on the mounting frame 111 and can cooperate with the transmission member 125. For instance, during the rotation of the base 112 driving the multiple clamping assemblies 120 disposed thereon to rotate, the transmission member 125 of each clamping assembly 120 passes through the driving member, and during this process, the driving member cooperates with the transmission member 125 to drive the clamping assembly 120 passing through it to rotate relative to the upper support plate 1121 and the lower support plate 1122, thereby realizing the revolution and rotation of the clamping assembly 120.

[0082] In some examples, the transmission element 125 can be configured as a gear, and the drive element can be configured as a paddle mounted on the mounting frame 111.

[0083] It is understandable that the specific configuration of the gear can be determined based on its installation space and the size of the drive component it cooperates with, and no specific limitation is made here. For example, the gear can be configured as a six-tooth gear with an outer diameter of 20mm and a thickness (i.e., the dimension of the gear in the height direction parallel to the clamping body 121) of 15mm.

[0084] Combination Figures 1 to 3 In some embodiments of this utility model, the transmission member 125 is disposed between the main body 1211 and the connecting shaft 126 located at the lower end of the main body 1211.

[0085] For example, after the clamp assembly 120 is assembled with the rotating base 112, the drive component is manually adjusted. For instance, the drive component can be mounted on the mounting frame 111 by screws, and the position of the drive component can be adjusted by turning the screws so that the drive component can cooperate with the transmission component 125.

[0086] By setting the transmission component 125 at the lower end of the main body 1211, the height of the drive component that cooperates with the transmission component 125 can be reduced accordingly, which makes it easier to manually adjust the drive component and improves the ease of operation.

[0087] In some embodiments of this utility model, the height of the clamp assembly 120 is 200mm-400mm, so that the clamp assembly 120 can be adapted to the base 110 of different heights, which is beneficial to improving the versatility of the clamp assembly 120. For example, the height of the clamp assembly 120 can be 330mm, which can be adapted to the Sulzer coating furnace equipment.

[0088] The following is a brief description of the structure of the clamp assembly 120 of the PVD coating fixture 100 according to an embodiment of the present invention, and the assembly steps for assembling the cutting blade 200 with the clamp assembly 120.

[0089] The PVD coating fixture 100 includes a fixture assembly 120, which includes a clamping body 121, a magnetic component 122, a mounting plate 123, and a transmission component 125. The clamping body 121 may include a main body 1211 and a cover plate 1212. The main body 1211 is provided with a receiving cavity a having two openings, and a cover plate 1212 is provided on both sides of the main body 1211. The cover plate 1212 and the main body 1211 are respectively provided with three threaded holes 127 with a diameter of 3.2 mm at opposite positions. The cover plate 1212 can be connected to the main body 1211 through a threaded connector. The cover plate 1212 is provided with a first positioning part 1213 and a second positioning part 1214 on both sides in the width direction. The first positioning part 1213 and the second positioning part 1214 are arranged opposite to each other in the width direction of the cover plate 1212. The mounting plate 123 is magnetically attracted to the side of the cover plate 1212 away from the main body 1211.

[0090] The main body 1211 can be configured as a stainless steel plate with a height of 130mm, a width of 26mm, and a thickness of 8.2mm. The main body 1211 is provided with two rows of accommodating cavities a evenly spaced along the height direction of the main body 1211. Each row of accommodating cavities a can have 25 cavities a, and the diameter of each accommodating cavity a can be 9mm. A high-temperature resistant cylindrical magnetic component 122 with a diameter of 8mm is provided in the accommodating cavity a. The length and width of the cover plate 1212 are the same as the length and width of the main body, and the thickness of the cover plate 1212 can be 1mm.

[0091] The clamping body 121 has 24 airflow channels 124 that run through it along its thickness direction on its center line. In the projection of the clamping body 121 in the thickness direction, the projection surface of the airflow channel 124 is located between the projection surfaces of adjacent accommodating cavities a and is offset from each accommodating cavity a.

[0092] After the clamping assembly 120 is assembled, the cutting blade 200 can be magnetically adsorbed on the side of the mounting plate 123 away from the cover plate 1212 along the thickness direction parallel to the clamping assembly 120. During the process of installing the cutting blade 200 to the clamping assembly 120, the installation position of the cutting blade 200 can be determined with reference to the setting positions of the first positioning part 1213 and the second positioning part 1214. The two ends of the cutting blade 200 in its length direction can be opposite to the first positioning part 1213 and the second positioning part 1214 respectively, so that the cutting blade 200 can be installed in the middle of the clamping assembly 120 in the width direction and located between two adjacent airflow channels 124.

[0093] In the above embodiment, cutting blades 200 can be installed on both sides of the clamping assembly 120, and 25 cutting blades 200 can be installed on each side of the clamping assembly 120, wherein the cutting blades 200 can be slotting blades.

[0094] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0095] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A fixture for PVD coating, characterized in that, include: Base (110); At least one clamping assembly (120) includes a clamping body (121) and a magnetic element (122), the clamping body (121) being mounted on the base (110), the magnetic element (122) being mounted on the clamping body (121), and being used to fix the cutting blade (200) to be processed on the clamping body (121).

2. The PVD coating fixture according to claim 1, characterized in that, The number of magnetic components (122) is multiple, and at least a portion of the magnetic components (122) are arranged in the height direction of the base (110).

3. The PVD coating fixture according to claim 1, characterized in that, The clamping body (121) includes: The body portion (1211) defines a receiving cavity (a) having at least one opening, and the magnetic element (122) is adapted to be installed in the receiving cavity (a) through the opening; At least one cover plate (1212) is detachably disposed on the body portion (1211) and covers the opening to enclose the magnetic element (122) within the receiving cavity (a).

4. The PVD coating fixture according to claim 3, characterized in that, The cover plate (1212) has a first positioning part (1213) and a second positioning part (1214) disposed opposite to each other in a first direction. In the first direction, the magnetic element (122) is located between the first positioning part (1213) and the second positioning part (1214). The first positioning part (1213) and the second positioning part (1214) are used to orient the installation posture of the cutting blade (200).

5. The PVD coating fixture according to claim 4, characterized in that, The number of accommodating cavities (a) is multiple, with at least two accommodating cavities (a) arranged in the first direction and located between the first positioning part (1213) and the second positioning part (1214) in the first direction, so that the magnetic element (122) disposed therein magnetically attracts the cutting blade (200) together.

6. The PVD coating fixture according to claim 4, characterized in that, The cover plate (1212) is a rectangular plate, and the first direction is the width direction of the cover plate (1212); The first positioning part (1213) and the second positioning part (1214) are provided on both sides of the cover plate (1212) in the width direction, and both form positioning notches.

7. The PVD coating fixture according to claim 3, characterized in that, The accommodating cavity (a) is provided through the thickness direction of the body part (1211) to form the openings on both sides of the body part (1211) in the thickness direction. At least two cover plates (1212) are respectively provided on both sides of the body part (1211) in the thickness direction to cover the openings at the corresponding positions.

8. The PVD coating fixture according to claim 3, characterized in that, The clamp assembly (120) further includes a mounting plate (123) which is magnetically attached to the side of the cover plate (1212) away from the body (1211), and the cutting blade (200) is adapted to be magnetically attached to the side of the mounting plate (123) away from the cover plate (1212).

9. The PVD coating fixture according to claim 1, characterized in that, The clamping body (121) is provided with an airflow channel (124), which is provided through the thickness direction of the clamping body (121).

10. The PVD coating fixture according to claim 9, characterized in that, The clamping body (121) has a plurality of accommodating cavities (a), each of the accommodating cavities (a) is provided with the magnetic element (122), and at least some of the accommodating cavities (a) are spaced apart in a second direction, the second direction being angularly set with respect to the thickness direction of the clamping body (121); In the second direction, an airflow channel (124) is provided between two adjacent accommodating cavities (a), and the airflow channel (124) is arranged opposite to or offset from the accommodating cavity (a) along the second direction.

11. The PVD coating fixture according to claim 9, characterized in that, The airflow channel (124) includes: First connected segment (1241); Two second connected segments (1242) are connected at both ends of the first connected segment (1241), and the first connected segment (1241) is connected to the external space through the two second connected segments (1242); The clamping body (121) is a cuboid structure. The first connecting segment (1241) is located in the middle of the clamping body (121) in the width direction. The second connecting segment (1242) extends along the width direction of the clamping body (121), and the middle of the extension direction of the second connecting segment (1242) is connected to the first connecting segment (1241).

12. The fixture for PVD coating according to any one of claims 1-11, characterized in that, The base (110) includes: Mounting frame (111); At least one rotating base (112) is rotatably disposed on the mounting frame (111). The rotating base (112) includes an upper support plate (1121) and a lower support plate (1122). A plurality of clamping assemblies (120) are provided between the upper support plate (1121) and the lower support plate (1122). The plurality of clamping assemblies (120) are rotatable relative to the upper support plate (1121) and the lower support plate (1122) and their rotation axes are arranged parallel to each other.

13. The PVD coating fixture according to claim 12, characterized in that, The clamp assembly (120) further includes a transmission member (125), which is located at one end of the clamping body (121). The mounting frame (111) is provided with a driving member, which is adapted to cooperate with the transmission member (125) to drive the clamp assembly (120) to rotate relative to the upper support plate (1121) and the lower support plate (1122).

Images