CN114438467A

CN114438467A - Coating clamp and coating machine

Info

Publication number: CN114438467A
Application number: CN202210130471.9A
Authority: CN
Inventors: 何好珍
Original assignee: Vitalink Industry Shenzhen Co ltd
Current assignee: Vitalink Industry Shenzhen Co ltd
Priority date: 2022-02-11
Filing date: 2022-02-11
Publication date: 2022-05-06
Anticipated expiration: 2042-02-11
Also published as: CN114438467B

Abstract

The invention relates to a coating clamp and a coating machine, wherein the coating machine comprises the coating clamp, the coating clamp comprises a stand column and a plurality of shielding jigs, and the stand column is provided with a plurality of limiting grooves which are distributed at intervals along the circumferential direction of the stand column; each shielding jig corresponds to one limiting groove one to one, each shielding jig is at least partially limited in one limiting groove, and each shielding jig is provided with a positioning hole, so that a workpiece to be plated can be fixedly installed in the positioning hole of the shielding jig under the assistance of automatic loading equipment. The shielding jig is limited in the limiting groove, so that the shielding jig can be conveniently and fixedly mounted on the stand column, and the straightness of the shielding jig after being put on the shelf meets the requirement. The whole coating fixture is of a columnar structure after being installed, so that the coating fixture can be installed in a coating machine to make full use of space during vacuum coating operation, and the goods can be hung more uniformly, so that the thickness of a film layer can be kept consistent in the vacuum coating operation, and the color of a coated film can be kept uniform.

Description

Coating clamp and coating machine

Technical Field

The invention relates to the technical field of vacuum coating, in particular to a coating clamp and a coating machine.

Background

In the field of vacuum coating technology, pvd (physical Vapor deposition) is physical Vapor deposition: refers to a process of transferring atoms or molecules from a source to a substrate surface by physical processes to effect mass transfer. It can make some particles with special properties (high strength, wear resistance, heat radiation, corrosion resistance, etc.) spray-coated on the product with lower properties, so that the product has better properties. The basic methods of PVD include vacuum evaporation, sputtering, ion plating, and the like.

On some products, special performance is only required to be provided at certain specific positions, so that a coating clamp is required to fix the products during coating, and areas which do not need coating are shielded. The existing product has small size and high shielding requirement, and the design of the clamp with simple operation, high use efficiency and low processing cost is very important for coating manufacturers. However, the existing coating clamp has the following problems: firstly, the elastic sheets used for fixing the product in the film coating clamp are a plurality of independent elastic sheets which are respectively welded on the long-strip bottom plate, so that a plurality of places need to be welded, the production efficiency is low, and mass production cannot be realized; position errors are easy to occur in the welding manufacturing process, and the plurality of elastic sheets are not easy to be fixedly arranged into a straight line, so that deformation is easy to occur in the using process; in the process of hanging the PVD up and down, the efficiency is not improved easily by automatic assistance, and the operation efficiency of the whole process is low; thirdly, the elastic sheet or the shielding piece is a movable piece, so that the upper hanging and installation are difficult and the operation efficiency is low; in the hanging process, the product may fall along with the elastic sheet and the shielding piece, so that the product is easily scratched.

Disclosure of Invention

Therefore, the coating clamp capable of hanging and clamping a plurality of workpieces to be coated at one time and the coating machine comprising the coating clamp are provided aiming at the problems that the existing coating clamp has large processing errors and is not easy to realize automation and hanging of a plurality of workpieces to be coated at one time, and the hanging operation process is simplified and the plurality of workpieces to be coated are convenient to hang automatically at one time.

According to an aspect of the present application, there is provided a plating jig including:

the vertical column is provided with a plurality of limiting grooves which are distributed at intervals along the circumferential direction of the vertical column;

each shielding jig corresponds to one limiting groove one to one, each shielding jig is at least partially limited in one limiting groove, each shielding jig is provided with a positioning hole, and the positioning holes are used for installing workpieces to be plated.

In one embodiment, the limiting groove extends lengthwise along the axial direction of the upright post.

In one embodiment, the post comprises:

a cylinder;

each fixing plate group comprises two fixing plates which are arranged at intervals along the axial direction of the upright column, each fixing plate is fixedly arranged on the outer peripheral surface of the column body, and each fixing plate is provided with a plurality of first sub-limiting grooves which are arranged at intervals along the circumferential direction of the fixing plate;

any one of the first sub-limiting grooves of one of the fixing plates in one of the fixing plate groups and one of the first sub-limiting grooves of the other fixing plate are arranged at intervals and are arranged in a centered manner along the axial direction of the upright column so as to define and form one limiting groove together.

In one embodiment, the upright column further comprises a limiting plate which is arranged between two fixing plates in one group of fixing plate groups at intervals, the limiting plate is fixedly arranged on the outer circumferential surface of the column body, the limiting plate is provided with a plurality of second sub-limiting grooves which are arranged at intervals along the circumferential direction of the limiting plate, each second sub-limiting groove is communicated with two opposite sides of the limiting plate along the axial direction, and each second sub-limiting groove is communicated with the outer circumferential surface of the limiting plate;

any one of the second sub-limiting grooves of the limiting plate and one of the first sub-limiting grooves of each fixing plate are arranged at intervals and are arranged in a centering manner along the axial direction of the upright column so as to jointly define and form one limiting groove.

In one embodiment, each shielding jig comprises a branch and a spring assembly, the spring assembly is fixedly mounted on the branch, and a plurality of positioning holes are formed in the spring assembly; the two opposite ends of the branch are respectively limited in the first sub-limiting groove of one fixing plate, so that the shielding jig is fixedly arranged on the upright post.

In one embodiment, the branches are partially retained in the second sub-retaining grooves.

In one embodiment, the spring plate assembly comprises a connecting plate and a plurality of spring plate sets arranged at intervals along the axial direction of the upright column, the connecting plate is fixedly mounted on the branch, and each spring plate set and the connecting plate are integrally formed.

In one embodiment, each group of the elastic sheet sets comprises a first elastic sheet and a second elastic sheet, one end of the first elastic sheet and one end of the second elastic sheet are respectively connected to the connecting sheet, the other end of the first elastic sheet and the other end of the second elastic sheet are arranged in a staggered manner, the other end of the first elastic sheet is provided with a first positioning hole, and the other end of the second elastic sheet is provided with a second positioning hole;

the first elastic sheet and the second elastic sheet can approach each other to generate recoverable deformation, and when the first elastic sheet and the second elastic sheet approach each other, the first positioning hole and the second positioning hole can be centered to form the positioning hole.

In one embodiment, the shielding jig further comprises a positioning block, the positioning block is mounted at one end of the shielding jig, and the positioning block abuts against one of the limiting plates to limit the shielding jig from moving along the axial direction of the upright.

According to another aspect of the application, a coating machine is provided, which comprises the coating clamp.

Above-mentioned coating fixture and coating machine, through set up coating fixture at the coating machine, set up stand and a plurality of tool that shields in coating fixture, the stand is equipped with a plurality of spacing grooves of arranging along the axial interval of stand, every shields the tool and is spacing in a spacing groove at least partially, and every shields the tool and is equipped with the locating hole that a plurality of intervals were arranged, make a plurality of work pieces of waiting to plate can once only fixed mounting simultaneously in a plurality of locating holes of shielding the tool under the assistance of automatic equipment of getting in stock. The shielding jig is limited in the limiting groove, so that the shielding jig can be conveniently and fixedly mounted on the stand column, and the straightness of the shielding jig after being put on the shelf meets the requirement. So, present column structure after whole coating film anchor clamps installation is accomplished for can make full use of space more when carrying out coating film anchor clamps and installing at the coating machine and carry out vacuum coating operation, thereby it is more even to hang goods, keeps unanimous and makes the colour of coating film keep even in order to be favorable to making the thickness of rete keep in the vacuum coating operation.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only one embodiment of the present invention, and for those skilled in the art, other embodiments can be obtained from the drawings without creative efforts.

Fig. 1 is a schematic perspective view of a coating fixture according to an embodiment of the present invention;

FIG. 2 is a schematic perspective view of a column according to an embodiment of the present invention;

fig. 3 is an exploded view of a shielding jig and a workpiece according to an embodiment of the present invention;

FIG. 4 is an enlarged view of area A of FIG. 1;

fig. 5 is an enlarged schematic view of a spring assembly according to an embodiment of the present invention;

fig. 6 is a schematic perspective view of a workpiece to be plated mounted on a plating jig according to an embodiment of the present invention.

Description of reference numerals:

10. coating a film on a clamp; 100. a column; 110. a cylinder; 111. an upper shaft head; 112. a lower shaft head; 1121. a drive pin; 120. a fixing plate; 121. a first sub-limiting groove; 130. a limiting plate; 131. a second sub-limiting groove;

200. a shielding jig; 210. branches; 220. a spring plate assembly; 221. connecting sheets; 222. a spring sheet group; 2221. a first spring plate; 2221a, a first spring plate pressing part; 2221b, a first spring piece bending part; 2221c, a first positioning hole; 2222. a second elastic sheet; 2222a, a second spring plate pressing part; 2222b, a second elastic piece bending part; 2222c, a second positioning hole; 230. positioning blocks; 231. a first extension portion; 232. a second extension portion;

30. a workpiece to be plated; 301. and a positioning column.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "level," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may be directly contacting the second feature or the first and second features may be indirectly contacting each other through intervening media. Also, a first feature "on," "over," and "above" a second feature may be directly or obliquely above the second feature, or may simply mean that the first feature is at a higher level than the second feature. A first feature "under," "beneath," and "beneath" a second feature may be directly or obliquely under the first feature or may simply mean that the first feature is at a lesser level than the second feature.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "up," "down," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a single embodiment.

An embodiment of the invention provides a coating clamp and a coating machine, wherein the coating machine comprises a coating clamp which is used for fixedly mounting a plurality of workpieces to be coated on the coating clamp simultaneously so as to perform coating operation, and shielding areas, which do not need to be coated, of the workpieces to be coated.

The structure of a coating jig of a coating machine in the present application will be described below by taking an example of vacuum coating of a workpiece, the coating jig is used for fixing the workpiece to be coated and is installed in the coating machine so that the surface of the workpiece to be coated, which needs to be coated, can be coated with a film layer in the coating machine. The present embodiment is described as an example, and the technical scope of the present application is not limited thereto. It is understood that the coating fixture can be used for fixing other types of workpieces in other embodiments and is installed in other equipment besides a coating machine, and is not limited herein.

The following describes a preferred embodiment of the coating fixture provided by the present application with reference to fig. 1 to 6.

A coating machine (not shown in the figure) comprises a coating clamp 10, wherein the coating clamp 10 is installed in the coating machine, can revolve around the central shaft of the coating machine in the coating machine and can rotate around the axial direction of the coating machine, so that the thickness of a film layer of a workpiece 30 to be coated, which is fixedly installed on the coating clamp 10, is consistent after the film is coated, and the color of the film layer is uniform.

As shown in fig. 1, in some embodiments, the coating fixture 10 includes a column 100 and a plurality of shielding jigs 200, wherein the column 100 is installed in the coating machine and is used for connecting a rotating frame of the coating machine and the shielding jigs 200, the column 100 has a plurality of limiting grooves arranged at intervals along the circumferential direction of the column 100, and each shielding jig 200 is partially limited in one limiting groove, so that each shielding jig 200 is installed on the column 100. Meanwhile, each shielding jig 200 is provided with a plurality of positioning holes for mounting the workpieces 30 to be plated, the plurality of positioning holes are arranged at intervals along the axial direction of the upright post 100, so that the plurality of workpieces 30 to be plated can be simultaneously and alternately mounted on one shielding jig 200 along the axial direction of the upright post 100, and the shielding jig 200 also plays a role in shielding an area which does not need to be plated in a product to be plated, so that the area can not be plated with a film layer during film plating operation.

In some embodiments, as shown in fig. 1 and 2, the column 100 includes a column 110 and two sets of fixed plate sets. The column 110 is a substantially cylindrical long bar-shaped structure, two opposite ends of the column 110 along the axial direction are respectively an upper shaft head 111 and a lower shaft head 112, the upper shaft head 111 and the lower shaft head 112 are respectively installed in cooperation with an upper flange and a lower flange of a film plating machine and rotate, wherein the lower shaft head 112 is provided with two transmission pins 1121 symmetrically distributed along the radial direction of the column 110, and a rotary frame of the film plating machine transmits rotary power through the transmission pins 1121 of the lower shaft head 112, so that the column 100, the shielding jig 200 and the workpiece 30 to be plated can rotate around the axial direction of the column 100 and revolve around the central shaft of the film plating equipment, thereby realizing two-axis or three-axis rotation.

Two sets of fixed plate groups are arranged along the axial direction interval of cylinder 110, every fixed plate group includes two fixed plates 120 that are arranged along the axial direction interval of cylinder 110, the distance between two fixed plates 120 is less than the length of shielding tool 200, every fixed plate 120 is discoid, the outer peripheral face of cylinder 110 is located to the fixed cover coaxially, every fixed plate 120 is seted up a plurality of first sub-spacing grooves 121 that are arranged along the circumference interval of fixed plate 120, every first sub-spacing groove 121 communicates fixed plate 120 along the relative both sides of axial direction, arbitrary one first sub-spacing groove 121 of one of them fixed plate 120 in every fixed plate group can be arranged and the centering setting along the axial direction interval of stand 100 with a first sub-spacing groove 121 of another fixed plate 120, in order to define jointly and form a spacing groove. The opposite ends of the coating jig can be respectively inserted into one of the first sub-limiting grooves 121 so that the coating jig is limited in the limiting grooves, and thus can be fixedly mounted on the column 100. The number of the fixing plate groups is not limited, and can be increased or decreased according to actual needs, and the more the fixing plate groups are, the more the shielding jigs 200 can be installed, so that more workpieces 30 to be plated can be simultaneously plated at one time.

In a preferred embodiment, the upright 100 further includes a limiting plate 130, and the limiting plate 130 is used to assist in limiting the shielding fixture 200. The limiting plate 130 is also disc-shaped, coaxially and fixedly sleeved on the outer circumferential surface of the column 110, and is disposed between the two fixing plates 120 of the group of fixing plates at intervals, the limiting plate 130 is provided with a plurality of second sub-limiting grooves 131 arranged at intervals along the circumferential direction of the limiting plate 130, each second sub-limiting groove 131 is communicated with two opposite sides of the limiting plate 130 along the circumferential direction, and each second sub-limiting groove 131 is communicated with the outer circumferential surface of the limiting plate 130. The number of the second sub-limiting grooves 131 is the same as that of the first sub-limiting grooves 121 in the fixing plate 120, so that any one of the second sub-limiting grooves 131 and one of the first sub-limiting grooves 121 of each fixing plate 120 are arranged at intervals and centered along the circumferential direction of the column 100, and thus the two first sub-limiting grooves 121 and one of the second sub-limiting grooves 131 can define a limiting groove together. The size of the second sub-limiting groove 131 may be the same as the size of the first sub-limiting groove 121, and when the opposite ends of the shielding jig 200 are inserted into one first limiting groove, the shielding jig 200 is partially limited in the second limiting groove, so that the shielding jig 200 can be more stably installed on the column 100, and the shielding jig 200 is prevented from shaking left and right when the coating jig 10 rotates.

It should be noted that the number of the first sub-limiting grooves 121 in the fixing plate 120 and the number of the second sub-limiting grooves 131 in the limiting plate 130 are not limited, and can be increased or decreased according to actual situations, and the number of the first sub-limiting grooves 121 and the number of the second sub-limiting grooves 131 directly determine the number of the limiting grooves that can be formed, so that the number of the shielding jigs 200 that can be mounted on each of the coating jigs 10 can also be directly determined. Meanwhile, the limiting groove of the column 100 may be a recessed groove that is formed on the column body of the column 100 and extends lengthwise along the axial direction of the column 100, as long as the shielding jig 200 can be limited therein, which is not limited herein.

In some embodiments, as shown in fig. 3, each shielding jig 200 includes a branch 210, a spring element 220 and a positioning block 230, the spring element 220 is fixedly mounted on the branch 210, the positioning block 230 is mounted at one end of the branch 210, the branch 210 is configured to be fixedly mounted on the column 100, the spring element 220 is configured to be mounted on the workpiece 30 to be plated, and the positioning block 230 is configured to limit the movement of the branch 210 along the axial direction of the column 100.

In a preferred embodiment, as shown in fig. 2, 3 and 4, the branch 210 is an elongated structure, and the cross-sectional shape of the branch 210 is rectangular, and correspondingly, the shapes of the first sub-limiting groove 121 and the second sub-limiting groove 131 in the upright 110 match the cross-sectional shape of the branch 210, which is also rectangular. When the shielding jig 200 is installed on the column 100, the two opposite ends of the branch 210 are respectively inserted into the first sub-limiting grooves 121 of the upper and lower fixing plates 120, and the middle of the branch 210 is limited in the second sub-limiting groove 131 of the limiting plate 130, so as to ensure that the straightness of the branch 210 after the hanging operation is completed meets the requirement.

Preferably, the sectional area of the first sub-limiting groove 121 and the sectional area of the second sub-limiting groove 131 are slightly larger than the sectional area of the branch 210, that is, when the branch 210 is limited in the limiting groove, gaps of 0.1mm are formed between the periphery of the section of the branch 210 and the first sub-limiting groove 121, and between the periphery of the section of the branch 210 and the second sub-limiting groove 131, so that the two ends of the branch 210 can be conveniently inserted into the first sub-limiting groove 121, and the middle part of the branch 210 can be accommodated in the second sub-limiting groove 131.

The cross-sectional shape of the branch 210 is not limited, and the section can be made of sections with different interfaces, such as rectangular, circular and the like due to low cost of the section. Correspondingly, the shapes of the first sub-limiting groove 121 and the second sub-limiting groove 131 can be changed according to the shape of the branch 210, as long as the branch 210 can be limited therein, so that the flexibility is strong, and the limitation is not limited herein.

Further, referring to fig. 4, the positioning block 230 is in an L-shaped plate structure, and is formed by bending a steel plate, and includes a first extending portion 231 and a second extending portion 232, the first extending portion 231 is welded and fixed on the surface of one side of the branch 210, so that the second extending portion 232 is perpendicular to the branch 210, when two ends of the branch 210 are respectively inserted into the first sub-limiting grooves 121 of the column 100, the second extending portion 232 of the positioning block 230 abuts against one fixing plate 120 of one column 100 to limit the branch 210 from moving up and down along the axial direction of the column 100, and thus the shielding jig 200 can be fixedly mounted on the column 100.

In a preferred embodiment, as shown in fig. 3 and 5, the spring assembly 220 includes a connecting plate 221 and a plurality of spring sets 222 arranged at intervals. The connecting piece 221 is preferably a strip-shaped sheet-like structure, when the shielding jig 200 is installed on the column 100, the connecting piece 221 may be welded on the surface of one side of the branch 210, or may be fixedly installed on the surface of one side of the branch 210 by a screwing or bonding manner, and the connecting piece 221 and the branch 210 both extend lengthwise along the axial direction of the column 100, and multiple groups of elastic sheet sets 222 are arranged at intervals along the axial direction of the column 100, and each group of elastic sheet sets 222 is connected to the connecting piece 221. Thus, the plurality of elastic sheet sets 222 and the connecting sheet 221 are integrally formed, and can be formed by continuous die integrated punch forming, so that the distance between the adjacent elastic sheet sets 222 is uniform and the consistency is good, and the automatic loading equipment can conveniently install a plurality of workpieces 30 to be plated on the elastic sheet sets 220 at the same time. In an alternative embodiment, each group of spring plate sets 222 can form positioning holes, and the number of the positioning holes formed in each group of spring plate sets 222 is not limited, and may be one, or may be multiple, and is not limited herein.

Further, with continued reference to fig. 1 and 5, each group of elastic sheet sets 222 includes a first elastic sheet 2221 and a second elastic sheet 2222, and the first elastic sheet 2221 and the second elastic sheet 2222 are approximately in an inverted "L" shape structure, wherein the first elastic sheet 2221 and the second elastic sheet 2222 have the same structure and are symmetrically disposed at two ends of the connecting sheet 221 along the width direction. The first elastic sheet 2221 includes a first elastic sheet pressing portion 2221a and a first elastic sheet bending portion 2221b, the second elastic sheet 2222 includes a second elastic sheet pressing portion 2222a and a second elastic sheet bending portion 2222b, one end of the first elastic sheet pressing portion 2221a and one end of the second elastic sheet pressing portion 2222a are respectively and fixedly connected to the connecting piece 221, the first elastic sheet bending portion 2221b is formed by bending at an acute angle from one end of the first elastic sheet pressing portion 2221a away from the connecting piece 221, the second elastic sheet bending portion 2222b is also formed by bending at an acute angle from one end of the second elastic sheet pressing portion 2222a away from the connecting piece 221, and the first elastic sheet bending portion 2221b and the second elastic sheet bending portion 2222b are arranged in a staggered manner. Thus, the first resilient tab 2221, the second resilient tab 2222 and the connecting piece 221 form a substantially trapezoidal cross section when viewed along the axial direction of the column 100.

Further, the first elastic piece bending portion 2221b is provided with a first positioning hole 2221c, the second elastic piece bending portion 2222b is provided with a second positioning hole 2222c, and the first positioning hole 2221c and the second positioning hole 2222c are used for forming a positioning hole of the shielding fixture 200, so that the positioning post 301 (shown in fig. 6) of the workpiece 30 to be plated is inserted into the positioning hole, and the workpiece 30 to be plated can be fixedly mounted on the shielding fixture 200.

Since the elastic sheet assembly 220 is formed by batch processing through a stamping process, the cost is low when the large-batch processing is carried out, and the mass production performance is high, so that the shapes of the first elastic sheet 2221 and the second elastic sheet 2222 can be changed according to the shapes and the sizes of different workpieces 30 to be plated.

Thus, when the first elastic sheet pressing portion 2221a and the second elastic sheet pressing portion 2222a are pressed by a manual or automatic auxiliary loading device, the first elastic sheet 2221 and the second elastic sheet 2222 can both deform in a restorable manner under the action of external force, so that the first elastic sheet pressing portion 2221a and the second elastic sheet pressing portion 2222a are close to each other, the first elastic sheet bending portion 2221b and the second elastic sheet bending portion 2222b are also close to each other, the first positioning hole 2221c and the second positioning hole 2222c can be centered to form a positioning hole, and the positioning column 301 of the workpiece 30 to be plated can be inserted into the positioning hole. When the external force is stopped being applied to the first elastic sheet pressing portion 2221a and the second elastic sheet pressing portion 2222a, the hole peripheries of the first positioning hole 2221c and the second positioning hole 2222c can simultaneously abut against the outer peripheral surface of the positioning post 301 of the workpiece 30 to be plated, so that the workpiece 30 to be plated is tightly clamped and installed in the positioning holes, and the surface of the workpiece 30 to be plated, which does not need to be plated, abuts against the surface of one side of the bent portion 2222b of the second elastic sheet, thereby shielding the bottom surface of the workpiece 30 to be plated, and preventing the film layer from being plated on the surface.

In a preferred embodiment, the first positioning hole 2221c is a circular hole, and the second positioning hole 2222c is a rectangular hole, or vice versa, so that the first positioning hole 2221c or the second positioning hole 2222c can match the cross-sectional shape of the positioning post 301 in the workpiece 30 to be plated, so that the workpiece 30 to be plated can be fixedly inserted into the positioning hole, and the workpiece 30 to be plated is prevented from rotating.

In a more preferred embodiment, the inner diameter of the first positioning hole 2221c is greater than the inner diameter of the second positioning hole 2222c, or the inner diameter of the second positioning hole 2222c is greater than the inner diameter of the first positioning hole 2221c, and this is set to form a certain tolerance between the first positioning hole 2221c and the second positioning hole 2222c, so that when the first elastic sheet 2221 and the second elastic sheet 2222 are close to each other, the first positioning hole 2221c and the second positioning hole 2222c can insert the workpiece 30 to be plated into the positioning holes even if the first positioning hole 2221c and the second positioning hole 2222c are not completely centered, so as to facilitate installation of the workpiece 30 to be plated.

As shown in fig. 1 to 5, the coating jig 10, when performing the hanging operation, has the following operation steps:

firstly, the automatic loading equipment is used for simultaneously pressing a plurality of elastic sheet groups 222 of the elastic sheet assembly 220 in the shielding jig 200, so that the first elastic sheet 2221 and the second elastic sheet 2222 of all the elastic sheet groups 222 are close to each other to form a plurality of positioning holes, and thus a plurality of workpieces 30 to be plated are simultaneously installed on the elastic sheet assembly 220 at one time.

Subsequently, as mentioned above, since the distance between the two fixing plates 120 of one fixing plate group in the column 100 is smaller than the length of the coating jig 10, and the cross-sectional area of the first sub-limiting groove 121 of the fixing plate 120 is slightly larger than that of the branch 210. When the hanging operation is performed, one shielding jig 200 fixedly provided with a plurality of workpieces 30 to be plated is inserted into one first sub limiting groove 121 of the fixing plate 120 positioned above in one group of fixing plate groups from bottom to top in a slightly inclined manner at one end of the shielding jig 200;

then, the shielding jig 200 is pushed upwards to slightly lift the shielding jig 200, and the other end of the shielding jig 200 is inserted into a first sub-limiting groove 121 of the lower fixing plate 120 in the group of fixing plate sets, and the middle part of the shielding jig 200 is limited in a second sub-limiting groove 131 of the limiting plate 130, so that the shielding jig 200 can be limited in one limiting groove;

finally, the shielding jig 200 is released by hand, so that the positioning block 230 of the shielding jig 200 abuts against the lower fixing plate 120, thereby completing the installation of the single shielding jig 200. Then, the operations are repeated to complete the hanging operations of the remaining shielding jigs 200.

Conversely, when the hanging-down operation is performed, the single shielding jig 200 is lifted slightly upward, so that one end of the shielding jig 200 leaves the first sub-limiting groove 121 of the limiting plate 130 located below; then, the shielding jig 200 is slightly tilted, and the other end of the shielding jig 200 is taken out from the first position-limiting groove of the position-limiting plate 130 located above from top to bottom, so as to complete the hanging-down operation of the single shielding jig 200. And then, repeating the operation to complete the hanging operation of the other shielding tools 200.

Therefore, the structure of the coating fixture 10 provided by the invention is easy to operate for hanging up and down, the structure of the upright post 100 is simpler, and the processing cost is low. According to the diameter of the coating equipment and the structure of the rotating frame, a plurality of groups of coating clamps 10 are uniformly arranged around the central shaft of coating switching in the coating equipment for vacuum coating operation, so that the space is fully utilized, and the whole goods hanging amount is higher.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express one of the embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. A coating jig characterized by comprising:

the vertical column is provided with a plurality of limiting grooves which are arranged at intervals along the circumferential direction of the vertical column;

2. The plating jig of claim 1, wherein the stopper groove extends lengthwise in an axial direction of the pillar.

3. The plating jig of claim 1, wherein the post comprises:

a cylinder;

4. The coating clamp according to claim 3, wherein the pillar further comprises a limiting plate disposed between two of the fixing plates in the fixing plate group at intervals, the limiting plate is fixedly mounted on the outer circumferential surface of the column body, the limiting plate is provided with a plurality of second sub-limiting grooves arranged at intervals along the circumferential direction of the limiting plate, each of the second sub-limiting grooves communicates with two opposite sides of the limiting plate along the axial direction, and each of the second sub-limiting grooves communicates with the outer circumferential surface of the limiting plate;

5. The plating fixture of claim 4, wherein each shielding fixture comprises a branch and a spring assembly, the spring assembly is fixedly mounted on the branch, and the positioning holes are formed in the spring assembly; the two opposite ends of the branch are respectively limited in the first sub-limiting groove of one fixing plate, so that the shielding jig is fixedly arranged on the upright post.

6. The plating jig of claim 5, wherein the branches are partially retained in the second sub-retaining grooves.

7. The plating jig of claim 5, wherein the spring assembly comprises a connecting piece and a plurality of spring sets arranged at intervals along the axial direction of the upright, the connecting piece is fixedly mounted on the branch, and each spring set is integrally formed with the connecting piece.

8. The coating clamp according to claim 7, wherein each group of the spring plate groups comprises a first spring plate and a second spring plate, one end of the first spring plate and one end of the second spring plate are respectively connected to the connecting sheet, the other end of the first spring plate and the other end of the second spring plate are arranged in a staggered manner, the other end of the first spring plate is provided with a first positioning hole, and the other end of the second spring plate is provided with a second positioning hole;

9. The coating fixture according to claim 3, wherein the shielding fixture further comprises a positioning block, the positioning block is mounted at one end of the shielding fixture, and the positioning block abuts against one of the limiting plates to limit the movement of the shielding fixture along the axial direction of the upright.

10. A coater comprising the coating jig according to any one of claims 1 to 9.