A workpiece holder rotating mechanism for vacuum coating

Abstract

The utility model discloses a workpiece frame rotating mechanism of vacuum coating, include: workpiece frame subassembly, rotating drive subassembly and buffer support subassembly, workpiece frame subassembly includes bottom disc, and the hanger structure of being established in the top of bottom disc along the circumference, rotating drive subassembly is equipped with with the rotating drive end of bottom disc bottom center connection, and rotating drive subassembly is used for driving workpiece frame subassembly rotates around the center axis of bottom disc, buffer support subassembly includes the base of being established in the bottom of bottom disc, and bottom disc is relatively rotatoryly arranged to base, and the top of base is with the bottom of bottom disc between along the circumference distribution has a plurality of sliding parts and a plurality of elastic parts, when bottom disc relatively base appears partial weight side inclination, and the partial weight of bottom disc partial weight leans to the downside and is through the elastic buffer of elastic part and base and is in contact, to reduce the amplitude of shaking, and through the sliding support cooperation of sliding part and base, make bottom disc can normally rotate and carry out the hanger.

Description

Technical Field

[0001] This utility model relates to the field of coating equipment technology, and in particular to a workpiece holder rotation mechanism for vacuum coating. Background Technology

[0002] In vacuum coating machines, workpieces are typically hung on a rotatable workpiece rack for coating. To ensure a more uniform coating, the workpieces need to be hung along the circumference of the workpiece rack. Since coating is done in batches, a workpiece rack with a larger outer diameter is required to load the workpieces. However, when the workpieces are hung on the workpiece rack, the rack may become unbalanced and tilt, causing significant swaying and affecting its normal rotation. Utility Model Content The purpose of this utility model is to provide a workpiece holder rotation mechanism for vacuum coating, so as to solve one or more technical problems existing in the prior art, and at least provide a beneficial option or create conditions.

[0003] The technical solution adopted to solve the above-mentioned technical problems is as follows: This utility model provides a workpiece holder rotation mechanism for vacuum coating, comprising: The workpiece rack assembly includes a chassis and a hanging structure disposed circumferentially on top of the chassis; A rotary drive assembly is provided with a rotary drive end connected to the center of the bottom of the chassis. The rotary drive assembly is used to drive the workpiece rack assembly to rotate around the central axis of the chassis. The buffer support assembly includes a base disposed at the bottom of the chassis, the chassis being rotatably disposed relative to the base, and a plurality of sliding members and a plurality of elastic members being distributed circumferentially between the top of the base and the bottom of the chassis. When the chassis tilts to one side relative to the base due to uneven weight distribution, the portion of the chassis tilting downwards due to uneven weight distribution elastically cushions and abuts against the base through the elastic members, and also slides and supports the base through the sliding members.

[0004] The beneficial effects of the workpiece holder rotation mechanism of this utility model are: In use, the workpiece to be processed is placed on the hanging structure and suspended along the circumference of the workpiece rack assembly. During the placement of the workpiece, the chassis experiences uneven force in the circumferential direction, and when it tilts to one side relative to the base, the part of the chassis that is tilted downwards is elastically buffered against the base by the elastic element to reduce the amplitude of swaying. At the same time, it can also cooperate with the sliding support of the base through the sliding element to allow the chassis to rotate normally for hanging the workpiece. During normal coating processing, after the workpiece is loaded, the chassis is evenly stressed. The rotation drive assembly drives the entire workpiece rack assembly to rotate around the central axis of the chassis, thereby rotating the workpiece for coating.

[0005] As a further improvement to the above technical solution, a plurality of the sliding members are distributed circumferentially on the top of the base, and a plurality of the elastic members are distributed circumferentially on the top of the base.

[0006] As a further improvement to the above technical solution, the sliding member includes a mounting bracket fixed to the base and a rolling bearing rotatably mounted on the mounting bracket, wherein the axial direction of the rolling bearing extends radially along the chassis rotation.

[0007] As a further improvement to the above technical solution, the elastic element is an elastic column of an elastic buffer member, and the elastic column is vertically fixed to the top of the base.

[0008] As a further improvement to the above technical solution, the bracket structure includes multiple hanging rods arranged vertically, the multiple hanging rods being rotatable relative to the chassis around their own axis, the lower end of each hanging rod being provided with a driven gear, the base being provided with an annular fixed gear ring, and the driven gear being meshed with the fixed gear ring.

[0009] As a further improvement to the above technical solution, the bracket structure also includes a top frame located above the chassis, multiple columns connecting the top frame and the chassis, and the upper and lower ends of the multiple hanging rods are respectively rotatably connected to the top frame and the chassis.

[0010] As a further improvement to the above technical solution, the top frame is a circular ring structure.

[0011] As a further improvement to the above technical solution, the base is a circular ring structure, the fixed toothed ring is located on the outer periphery of the base, a plurality of hanging rods are distributed at intervals along the circumference, and the driven gear is located at the bottom of the chassis.

[0012] As a further improvement to the above technical solution, the bottom of the chassis is provided with a reinforcing plate frame, the reinforcing plate frame including a reinforcing plate and a plurality of support arms distributed circumferentially along the reinforcing plate, the plurality of support arms being arranged to extend radially along the reinforcing plate.

[0013] As a further improvement to the above technical solution, the rotary drive end is located at the center of the reinforced disk.

[0014] Other features and advantages of this invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. Attached Figure Description

[0015] The present invention will be further described below with reference to the accompanying drawings and embodiments; Figure 1 This is a front cross-sectional view of an embodiment of the workpiece holder rotating mechanism provided by this utility model; Figure 2 This is a schematic diagram of the lower structure of an embodiment of the workpiece holder rotation mechanism provided by this utility model, wherein the rotation drive component is not installed; Figure 3 This is a schematic diagram of the upper structure of an embodiment of the workpiece holder rotation mechanism provided by this utility model; Figure 4 This is a schematic diagram of an embodiment of the buffer support component provided by this utility model; Figure 5 yes Figure 1 A magnified view of part A in the middle; Figure 6 This is a bottom view of an embodiment of the workpiece holder rotation mechanism provided by this utility model, wherein the rotation drive assembly is not installed; Icon labels: Workpiece rack assembly 100; chassis 110; hanging structure 120; hanging rod 121; driven gear 122; top frame 123; column 124; reinforcing plate frame 130; reinforcing plate 131; support arm 132; Rotary drive assembly 200; Rotary drive end 210; Buffer support assembly 300; base 310; fixed toothed ring 311; sliding element 320; mounting bracket 321; rolling bearing 322; elastic element 330; elastic column 331. Detailed Implementation

[0016] 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.

[0017] In the description of this utility model, it should be understood that the orientation descriptions, such as up, down, etc., are based on the orientation or positional relationship shown in the drawings. They 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. Therefore, they should not be construed as limitations on this utility model.

[0018] In the description of this utility model, "multiple" refers to two or more. The use of "first" and "second" is for distinguishing technical features only and should not be construed as indicating or implying relative importance, or implicitly indicating the number of technical features or their sequential relationship.

[0019] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0020] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described below are some embodiments of this utility model, not all embodiments.

[0021] In existing coating equipment, when the workpiece is hung on the workpiece rack, the workpiece rack will tilt to one side due to uneven weight distribution, causing significant shaking and affecting its normal rotation. Therefore, this invention proposes a workpiece rack rotation mechanism for vacuum coating to solve the defects of the prior art.

[0022] like Figures 1 to 6 As shown, the workpiece rack rotation mechanism of this utility model includes: a workpiece rack assembly 100, a rotation drive assembly 200, and a buffer support assembly 300.

[0023] Among them, such as Figure 2 and Figure 3 As shown, the workpiece rack assembly 100 of this utility model includes a chassis 110 and a hanging structure 120 arranged circumferentially on the top of the chassis 110. The hanging structure 120 is used to hang the workpiece to be processed. The workpiece can be hung on the hanging structure 120 circumferentially for coating processing.

[0024] like Figure 1 As shown, the rotary drive assembly 200 is provided with a rotary drive end 210 connected to the center of the bottom of the chassis 110. The rotary drive assembly 200 is used to drive the workpiece rack assembly 100 to rotate around the central axis of the chassis 110, so as to drive the workpieces hanging on the hanger structure 120 to rotate.

[0025] like Figure 2 and Figure 3 As shown, the buffer support assembly 300 of this utility model includes a base 310 disposed at the bottom of the chassis 110, wherein the chassis 110 is rotatably disposed relative to the base 310. It can be understood that the base 310 is fixedly disposed, while the chassis 110 is rotatably disposed.

[0026] like Figure 4 and Figure 5 As shown, multiple sliding members 320 and multiple elastic members 330 are distributed circumferentially between the top of the base 310 and the bottom of the chassis 110. When the chassis 110 tilts to one side relative to the base 310, the part of the chassis 110 that tilts downwards is elastically buffered and abutted against the base 310 by the elastic members 330, and is slidably supported and cooperated with the base 310 by the sliding members 320.

[0027] In use, the workpiece to be processed is placed on the hanging structure 120 and suspended along the circumference of the workpiece rack assembly 100. During the placement of the workpiece, the chassis 110 is subjected to uneven force in the circumference and tilts to one side relative to the base 310. At this time, the part of the chassis 110 that is tilted downwards is elastically buffered against the base 310 by the elastic element 330 to reduce the amplitude of shaking. At the same time, the sliding element 320 can also slide and support the base 310, so that the chassis 110 can rotate normally to hang the workpiece. During normal coating processing, after the workpiece is loaded, the chassis 110 is subjected to uniform force. The rotation drive assembly 200 drives the entire workpiece rack assembly 100 to rotate around the central axis of the chassis 110, so as to drive the workpiece to rotate for coating.

[0028] like Figure 4 As shown, in this embodiment, multiple sliding members 320 are distributed circumferentially on the top of the base 310, and multiple elastic members 330 are distributed circumferentially on the top of the base 310, with the sliding members 320 and elastic members 330 arranged alternately.

[0029] In some other embodiments, the elastic element 330 and the sliding element 320 may be disposed at the bottom of the chassis 110.

[0030] Among them, such as Figure 4 and Figure 5 As shown, the sliding member 320 in this embodiment includes a mounting bracket 321 fixed to the base 310 and a rolling bearing 322 rotatably mounted on the mounting bracket 321. The axial direction of the rolling bearing 322 extends radially along the rotation of the chassis 110. In this embodiment, the rolling bearing 322 is used to support and guide the chassis 110, so as to reduce the friction when the chassis 110 rotates and improve the smoothness of rotation.

[0031] In some other embodiments, the slider 320 may be a ball bearing structure.

[0032] like Figure 4 and Figure 5 As shown, the elastic member 330 in this embodiment includes an elastic column 331 of an elastic buffer member. The elastic column 331 is vertically fixed to the top of the base 310, and the elastic column 331 may be made of soft plastic.

[0033] Under normal circumstances, such as Figure 5 As shown, the rolling bearing 322 and the elastic column 331 have a certain gap with the chassis 110. Under normal rotation, the chassis 110 is mainly supported by the rotation drive assembly 200. When the workpiece is loaded or unloaded, if the chassis 110 tilts to one side due to uneven weight, the chassis 110 will tilt downwards so that the bottom of the chassis 110 can contact the rolling bearing 322 and the elastic column 331 to play the role of tilt buffering and support.

[0034] Furthermore, such as Figures 1 to 3 As shown, the hanging bracket structure 120 of this embodiment includes a plurality of vertically arranged hanging rods 121, which are rotatably arranged relative to the chassis 110 about their own axes, such as... Figure 2 , Figure 5 and Figure 6 As shown, the lower end of the hanging rod 121 is provided with a driven gear 122, and the base 310 is provided with an annular fixed gear ring 311. The driven gear 122 is meshed with the fixed gear ring 311.

[0035] In this embodiment, the workpiece is hung on the hanging rod 121 by a special hanger. During the rotation of the chassis 110, multiple hanging rods 121 are driven to revolve around the central axis. At the same time, under the meshing of the driven gear 122 and the fixed gear ring 311, multiple hanging rods 121 are driven to rotate on their own axis, thereby driving the workpiece to revolve around the central axis and rotate on its own axis, so as to improve the quality of the coating process.

[0036] To improve load-bearing capacity, such as Figures 1 to 3 As shown, the bracket structure 120 of this embodiment also includes a top frame 123 located above the chassis 110, a plurality of columns 124 connecting the top frame 123 and the chassis 110, and the upper and lower ends of the plurality of hanging rods 121 are rotatably connected to the top frame 123 and the chassis 110 respectively to improve the load-bearing capacity of the hanging rods 121.

[0037] The top frame 123 has a circular structure, which makes the middle position of the hanging frame structure 120 hollow, so as to leave space for other coating equipment or larger workpieces.

[0038] like Figure 2 and 4 As shown, the base 310 in this embodiment has a circular structure, and the fixed gear ring 311 is located on the outer periphery of the base 310. Multiple hanging rods 121 are distributed at intervals along the circumference. The driven gear 122 is located at the bottom of the chassis 110. It can be understood that after the lower end of the hanging rod 121 passes through the chassis 110, it is fixedly connected to the driven gear 122. This can separate the coating space from the transmission space, avoid affecting the transmission structure, improve service life, and reduce the failure rate.

[0039] Furthermore, such as Figure 2 As shown, the chassis 110 of this embodiment is provided with a reinforcing plate frame 130 at the bottom. The reinforcing plate frame 130 includes a reinforcing plate 131 and a plurality of support arms 132 distributed circumferentially along the reinforcing plate 131. The plurality of support arms 132 extend radially along the reinforcing plate 131. The structural strength of the chassis 110 is improved by the reinforcing plate frame 130, so as to improve the stability of the support.

[0040] Among them, such as Figure 1 and Figure 2As shown, the rotary drive end 210 is connected to the center of the reinforcing disk 131. In this embodiment, the rotary drive end 210 is a vertically arranged rotary shaft structure. The rotary drive end 210 is connected to the reinforcing disk 131, and the reinforcing disk 131 is provided with a shaft hole that fits with the rotary shaft structure.

[0041] The working principle of the workpiece rack rotation mechanism of this utility model is as follows: the workpiece to be processed is hung on the hanging rod 121 through a special hanging bracket. At this time, the chassis 110 will be subjected to uneven force in the circumferential direction, and will tilt to one side relative to the base 310. The part of the chassis 110 that tilts downwards is elastically buffered and resisted by the elastic column 331 and the base 310 to reduce the amplitude of shaking. At the same time, the chassis 110 can also be slidably supported by the rolling bearing 322 and the base 310, so that the chassis 110 can rotate normally to hang the workpiece. After the workpiece is hung, the chassis 110 is evenly stressed. The rotation drive assembly 200 drives the entire workpiece rack assembly 100 to rotate around the central axis of the chassis 110. During the rotation of the chassis 110, multiple hanging rods 121 revolve. At the same time, under the meshing of the driven gear 122 and the fixed gear ring 311, multiple hanging rods 121 rotate on their own axis, thereby driving the workpiece to revolve and rotate, so as to improve the quality of the coating process.

[0042] 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.

[0043] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A workpiece holder rotation mechanism for vacuum coating, characterized in that, include: The workpiece rack assembly includes a chassis and a hanging structure disposed circumferentially on top of the chassis; A rotary drive assembly is provided with a rotary drive end connected to the center of the bottom of the chassis. The rotary drive assembly is used to drive the workpiece rack assembly to rotate around the central axis of the chassis. The buffer support assembly includes a base disposed at the bottom of the chassis, the chassis being rotatably disposed relative to the base, and a plurality of sliding members and a plurality of elastic members being distributed circumferentially between the top of the base and the bottom of the chassis. When the chassis tilts to one side relative to the base due to uneven weight distribution, the portion of the chassis tilting downwards due to uneven weight distribution elastically cushions and abuts against the base through the elastic members, and also slides and supports the base through the sliding members.

2. The workpiece holder rotating mechanism according to claim 1, characterized in that: Multiple sliding members are distributed circumferentially on the top of the base, and multiple elastic members are distributed circumferentially on the top of the base.

3. The workpiece holder rotating mechanism according to claim 2, characterized in that: The sliding element includes a mounting bracket fixed to the base and a rolling bearing rotatably mounted on the mounting bracket, the axial direction of which extends radially along the chassis.

4. The workpiece holder rotating mechanism according to claim 2, characterized in that: The elastic element is an elastic column of an elastic buffer member, and the elastic column is vertically fixed to the top of the base.

5. The workpiece holder rotating mechanism according to claim 1, characterized in that: The bracket structure includes multiple vertically arranged hanging rods, which are rotatable relative to the chassis around their own axis. The lower end of each hanging rod is provided with a driven gear, and the base is provided with an annular fixed gear ring. The driven gear is meshed with the fixed gear ring.

6. The workpiece holder rotating mechanism according to claim 5, characterized in that: The mounting structure also includes a top frame located above the chassis, multiple columns connecting the top frame and the chassis, and the upper and lower ends of the multiple hanging rods are respectively rotatably connected to the top frame and the chassis.

7. The workpiece holder rotating mechanism according to claim 6, characterized in that: The top frame has a circular ring structure.

8. The workpiece holder rotating mechanism according to claim 5, characterized in that: The base is a circular ring structure, the fixed toothed ring is located on the outer periphery of the base, the multiple hanging rods are distributed at intervals along the circumference, and the driven gear is located at the bottom of the chassis.

9. The workpiece holder rotating mechanism according to claim 1, characterized in that: The bottom of the chassis is provided with a reinforcing plate frame, which includes a reinforcing plate and a plurality of support arms that are spaced apart circumferentially along the reinforcing plate. The plurality of support arms extend radially along the reinforcing plate.

10. The workpiece holder rotating mechanism according to claim 9, characterized in that: The rotary drive end is connected to the center of the reinforcing disk.

Images