Fixing device for workpiece coating

Abstract

The utility model discloses a fixing device for workpiece coating, which is mounted on a rotary transmission mechanism in a deposition furnace and comprises a support limiting component and a gas distribution cone, the number of the supporting and limiting assemblies is multiple, and each supporting and limiting assembly supports and limits one workpiece. The multiple sets of supporting and limiting assemblies are arranged up and down and coaxially arranged, and the top end of any set of supporting and limiting assembly is fixedly connected with the bottom end of the adjacent supporting and limiting assembly above the supporting and limiting assembly through a pin shaft assembly. And the lowermost group of supporting and limiting assemblies is connected with the gas distribution cone through a connecting assembly. The fixing device for workpiece coating can be used for coating a plurality of workpieces and workpieces of different models at the same time, and is high in coating efficiency and good in coating effect.

Description

TECHNICAL FIELD

[0001] The utility model relates to workpiece coating fixed technical field especially relates to a workpiece coating fixed device. BACKGROUND

[0002] The annular product made of graphite ring, PBN ring and other materials needs to coat the coating on its outer surface for isolating from the external environment and prolonging the service life of the product. However, when coating the workpiece in the deposition furnace, the contact area between the workpiece and its fixing device is large, which leads to uneven coating, and only one workpiece can be coated at a time, the coating efficiency is low, or only one type of workpiece can be fixed and limited, the practicability is low. Therefore, the workpiece coating fixing device is provided, which can fix multiple workpieces at the same time, and the contact area between the workpiece and the fixing device is small, which not only has high coating efficiency, but also has good coating effect. SUMMARY

[0003] In view of the above defects or deficiencies in the prior art, it is desirable to provide a workpiece coating fixing device.

[0004] The workpiece coating fixing device provided by the utility model is installed on the rotary transmission mechanism in the deposition furnace, characterized in that it comprises a support limiting assembly and a gas distribution cone. The support limiting assembly is provided with multiple groups, each group of the support limiting assembly supports and limits one workpiece. The multiple groups of the support limiting assembly are arranged in an up-down manner and coaxially. The top end of any group of the support limiting assembly is connected and fixed to the bottom end of the support limiting assembly above it through a pin shaft assembly. The group of the support limiting assembly at the bottom is connected to the gas distribution cone through a connecting assembly.

[0005] Further, the support limiting assembly comprises a support shaft, a support part and a limiting part.

[0006] Among them,

[0007] The top end of the support shaft is integrally formed with a mounting boss, and the bottom end of the support shaft is provided with a mounting groove corresponding to the

[0008] mounting boss. A plurality of groups of plug-in holes arranged in an up-down manner are arranged on the circumferential wall surface of the support shaft above the mounting groove, and each group of the plug-in hole comprises three horseshoe holes.

[0009] The three horseshoe holes are evenly arranged in the circumferential direction of the support shaft.

[0010] The support part corresponds to the plug-in hole. The support part comprises three support rods.

[0011] The three support rods are arranged in an up-down manner and are connected to each other through a connecting rod.

[0012] The limiting part is arranged on the top end of the support rod.

[0013] Supporting rods, three of the supporting rods correspond to three horseshoe-shaped holes in a group of the insertion holes

[0014] Supporting rods, three of the supporting rods correspond to three horseshoe-shaped holes in a group of the insertion holes

[0015] The upper surface of the assembled supporting rod is uniformly spaced along the length direction of the upper surface

[0016] A plurality of inclined insertion holes are arranged on the upper surface of the supporting rod

[0017] The limiting component corresponds to the supporting component; the limiting component includes three

[0018] Limiting rods, three of the limiting rods correspond to three supporting rods in a group of the supporting components

[0019] The end of the limiting rod is inserted into the inner part of the inclined insertion hole on the corresponding supporting rod

[0020] The three limiting rods on the same circumference support and limit the workpiece.

[0021] Further, the pin shaft assembly includes a first pin hole arranged on the circumferential wall surface of the mounting boss, a second pin hole is arranged symmetrically on the circumferential wall surface of the mounting groove corresponding to the first pin hole; a pin shaft is arranged through the second pin hole and the first pin hole, used for connecting and fixing the upper and lower adjacent two supporting shafts.

[0022] Further, the gas distribution cone includes a circular cone for uniformly distributing gas, and the top angle of the circular cone is set to 60°, 90° or 120°; a coaxial stud is fixedly arranged on the circular end surface of the circular cone.

[0023] Further, the connecting assembly includes a connecting shaft, one end of the connecting shaft is threadedly connected with the stud, and the other end is fixedly and connectively arranged with the bottom end of the lowermost supporting shaft.

[0024] Further, a threaded hole is arranged on the circumferential wall surface of the supporting shaft, a screw rod is arranged corresponding to the threaded hole, and the screw rod is arranged in the inner part of the threaded hole in a threaded manner, used for suspending a test sample.

[0025] Further, the supporting shaft, the mounting boss, the mounting groove, the connecting shaft and the gas distribution cone are coaxially arranged.

[0026] Compared with the prior art, the beneficial effects of the utility model are:

[0027] The utility model discloses a workpiece coating fixing device, through setting up a plurality of groups of upper and lower arrangement's support limiting component, to a plurality of annular workpieces is supported and is limited simultaneously, can be to a plurality of annular workpieces is coated simultaneously, improves work efficiency, in addition, the three limiting rods of setting up in the same circumference in each group of support limiting component, to annular workpiece is supported, the contact area between annular workpiece and limiting rod is reduced, improves workpiece coating effect, improves the product quality of workpiece,

[0028] In addition, the gas cone is arranged below the support limiting assembly, which can uniformly disperse the gas entering the inside of the deposition furnace, further improving the uniformity of the workpiece coating.

[0029] Finally, the plug-in position of the limiting rod on the support rod can be adjusted according to the inner diameter of the annular workpiece, and various different specifications and models of workpieces can be supported and limited, improving the practicality of the fixing device.

[0030] It should be understood that the content described in the utility model content part is not intended to limit the key or important features of the embodiments of the utility model, nor to limit the scope of the utility model.

[0031] Other features of the utility model will become apparent from the following description. BRIEF DESCRIPTION OF DRAWINGS

[0032] Other features, objects and advantages of the utility model will become more apparent from the following detailed description of non-limiting embodiments made with reference to the accompanying drawings:

[0033] Figure 1 A workpiece coating fixing device provided by the utility model embodiment and the structure schematic view after workpiece assembly;

[0034] Figure 2 The structure schematic view of the workpiece coating fixing device;

[0035] Figure 3 The explosion view of the workpiece coating fixing device;

[0036] Figure 4 The structure schematic view of the support shaft;

[0037] Figure 5 The axial cross-sectional view of the support shaft;

[0038] Figure 6 The cross-sectional view of the end face direction of the support shaft;

[0039] Figure 7 The structure schematic view of the support rod;

[0040] Figure 8A sectional view of the support and limiting assembly after assembly;

[0041] Reference signs in the drawings: 1, support and limiting assembly; 11, support shaft; 12, mounting boss; 13, mounting groove; 14, insertion hole; 141, horseshoe hole; 15, support part; 151, support rod; 152, oblique insertion hole; 16, limiting part; 161, limiting rod; 2, gas distribution cone; 21, conical body; 22, stud; 3, connecting shaft; 4, pin shaft assembly; 41, first pin hole; 42, second pin hole; 43, pin shaft; 5, threaded hole; 6, screw rod; 7, test sample; 8, workpiece. DETAILED DESCRIPTION

[0042] The utility model will be explained in further detail below in combination with the drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the related utility model, and are not limited to the utility model. In addition, it needs to be explained that only the parts related to the utility model are shown in the drawings for the convenience of description.

[0043] It needs to be explained that the embodiments in the utility model and the features in the embodiments can be combined with each other without conflict. The utility model will be explained in detail below in combination with the drawings and embodiments.

[0044] Please refer to Figures 1-8 The embodiment of the utility model provides a kind of fixed device for workpiece coating, installation is set on the rotary transmission mechanism in deposition furnace, is rotated by the rotary transmission mechanism in deposition furnace and drives fixed device for workpiece coating, is uniformly coated to annular workpiece on it;In addition, the end of the gas inlet pipe is directly below the fixed device for workpiece coating after installation;

[0045] Specifically, the fixed device for workpiece coating includes support and limiting assembly 1 and gas distribution cone 2;Support and limiting assembly 1 is provided with multiple groups, and each group of support and limiting assembly 1 supports and limits one workpiece 8, i.e. it can realize coating to multiple workpieces 8 simultaneously, improve work efficiency;

[0046] Multiple groups of support and limiting assembly 1 are arranged above and below and coaxially arranged, and the top end of any group of support and limiting assembly 1 is connected and fixed with the bottom end of the support and limiting assembly 1 above it through pin shaft assembly 4, to realize the purpose of the series connection of multiple groups of support and limiting assembly 1 above and below;

[0047] The group of support and limiting assembly 1 located at the lowermost is connected with gas distribution cone 2 through connecting assembly;Since the end of the gas inlet pipe of the gas in the deposition furnace is directly below the fixed device after installation, in order to the uniformity of workpiece coating, gas distribution cone 2 is arranged to uniformly disperse the gas entering the deposition furnace.

[0048] In a preferred embodiment, the support limiting component 1 comprises a support shaft 11, a support part 15 and a limiting part 16; wherein,

[0049] The support shaft 11 is integrally formed with a mounting boss 12 at the top end, and a mounting groove 13 is arranged at the bottom end corresponding to the mounting boss 12. The mounting boss 12 of one support shaft 11 is inserted into the inside of the mounting groove 13 of the adjacent upper support shaft 11, achieving the upper and lower series connection of multiple support shafts 11.

[0050] A plurality of groups of plug-in hole positions 14 are arranged on the circumferential wall surface of the support shaft 11 above the mounting groove 13. Each group of plug-in hole positions 14 includes three horseshoe holes 141, which are uniformly arranged along the circumferential direction of the support shaft 11, i.e., the included angle between every two horseshoe holes 141 is 120°.

[0051] The support part 15 corresponds to the plug-in hole position 14. The support part 15 includes three support rods 151 corresponding to the three horseshoe holes 141 in each group of plug-in hole positions 14. One end of the support rod 151 is arranged in a horseshoe shape and is inserted into the corresponding horseshoe hole 141. After assembly, a plurality of inclined insertion holes 152 are uniformly and spaced apart along the length direction on the upper surface of the support rod 151.

[0052] The limiting part 16 corresponds to the support part 15. The limiting part 16 includes three limiting rods 161, which correspond one-to-one to the three support rods 151 in each group of support parts 16. One end of a limiting rod 161 is inserted into the inside of an inclined insertion hole 152 on a support rod 151. The three limiting rods 161 located on the same circumference support and limit the workpiece 8.

[0053] The insertion position of the limiting rod 161 on the support rod 151 can be adjusted according to the inner diameter of the annular workpiece 8, and the support limiting component 1 can support and limit workpieces 8 of various specifications and models, improving the practicality of the fixing device.

[0054] In a preferred embodiment, the pin shaft assembly 4 includes a first pin hole 41 arranged on the circumferential wall surface of the mounting boss 2, and a second pin hole 42 symmetrically arranged on the circumferential wall surface of the mounting groove 13 corresponding to the first pin hole 41. A pin shaft 43 is arranged through the second pin hole 42 and the first pin hole 41, which is used to connect and fix the two adjacent support shafts 11 above and below. That is, the connection between the two support shafts 11 connected above and below is detachable, and the support limiting component 1 can be assembled according to the actual number of coated workpieces.

[0055] In a preferred embodiment, the gas distribution cone 2 comprises a circular cone 21 for uniformly dispersing the gas, the top angle of the circular cone 21 is set to 60°, 90° or 120°, and different specifications of the gas distribution cone 2 can be matched and replaced according to different specifications of the workpiece 8, thereby improving the coating effect of the workpiece 8; the coaxial stud 22 is fixed on the circular end face of the circular cone 21.

[0056] In a preferred embodiment, the connecting assembly comprises a connecting shaft 3, one end of the connecting shaft 3 is threadedly connected with the stud 22, and the other end is fixedly connected with the bottom end of the lowermost support shaft 11;

[0057] Among them, one of the connecting modes between the end of the connecting shaft 3 away from the gas distribution cone 2 and the bottom end of the lowermost support shaft 11 can be threaded connection, that is, the inside of the mounting groove 13 of the lowermost support shaft 11 is provided with a thread, and the circumferential outer side of the end of the connecting shaft 3 away from the gas distribution cone 2 is provided with an external thread, and the two are connected through threaded connection.

[0058] The second connecting mode between the end of the connecting shaft 3 away from the gas distribution cone 2 and the bottom end of the lowermost support shaft 11 can be connected by a pin, a third pin hole is arranged on the end of the connecting shaft away from the gas distribution cone and penetrates into the inside of the mounting groove, the third pin hole cooperates with the second pin hole, and the pin penetrates through the third pin hole and the second pin hole to realize the connection and fixation between the connecting shaft and the lowermost support shaft.

[0059] In a preferred embodiment, the circumferential wall surface of the support shaft 11 is provided with a threaded hole, a screw rod 6 corresponding to the threaded hole 5 is arranged, and the screw rod 6 is arranged by screwing into the inside of the threaded hole 5, which is used for hanging the test sample 7;

[0060] Among them, the test sample 7 is hung on the screw rod 6, the test sample 7 is coated together with the annular workpiece 8, after the coating is completed, the depth and other data of the coating need to be detected and recorded, and the test sample 7 needs to be broken, so that the product of the workpiece 8 is not damaged.

[0061] In a preferred embodiment, the support shaft 11, the mounting boss 12, the mounting groove 13, the connecting shaft 3 and the gas distribution cone 2 are coaxially arranged, and the support shaft 11, the mounting boss 12, the connecting shaft 3, the gas distribution cone 2, the support rod 151 and the limiting rod 161 are made of graphite material.

[0062] The working principle of the utility model:

[0063] According to the actual needs of the number of workpieces 8 coated, the corresponding number of support limiting assemblies 1 are assembled, the bottom end of the connecting shaft 3 is threadedly connected with the stud 22 on the gas distribution cone 2, and the top end of the connecting shaft 3 is threadedly connected with the mounting groove 13 of the lowermost support shaft 11;

[0064] The mounting boss 12 at the top end of the lowermost support shaft 11 is inserted into the mounting groove 13 of the upper support shaft 11 adjacent thereto, and then the pin shaft 43 passes through the corresponding first pin hole 41 and second pin hole 42, thereby completing the connection and fixation between the two adjacent support shafts 11; then the horseshoe ends of the three support rods 151 are inserted into the three horseshoe holes 141 in the group of insertion holes 14 on the same support shaft 11, and the three limiting rods 161 are respectively inserted into the inclined insertion holes 152 on the three support rods 151, and the annular workpiece 8 is placed on the three limiting rods 161, and the same is repeated, and the installation of other support shafts 11, support rods 151, limiting rods 161 and workpieces 8 is completed according to actual needs;

[0065] Then the screw rod 6 is screwed into the threaded hole 5, the test sample 7 is hung, and the entire fixing device is installed and fixed on the rotary transmission mechanism in the deposition furnace for coating;

[0066] The entire fixing device can support and limit different types and specifications of workpieces, and can simultaneously coat multiple workpieces, thereby improving work efficiency and being highly practical.

[0067] In the description of the present specification, the terms "connection", "installation", "fixation" and the like should be understood in a broad sense, for example, "connection" can be fixed connection, can also be detachable connection, or integral connection; can be directly connected, or indirectly connected through an intermediate medium. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0068] In the description of the present specification, the terms "one embodiment", "some embodiments" and the like mean that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0069] The above is only the preferred embodiment of the present application and is not used to limit the present application. For those skilled in the art, the present application can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A workpiece coating fixing device, installed on a rotary transmission mechanism inside a deposition furnace, characterized in that, The application relates to a supporting and limiting assembly and a gas distributing cone.

2. The workpiece coating fixture of claim 1, wherein, The supporting and limiting assembly comprises a supporting shaft, a supporting component and a limiting component. The supporting shaft is integrally provided with a mounting boss at the top end, and is provided with a mounting groove at the bottom end corresponding to the mounting boss. The supporting component corresponds to the inserting hole position. The limiting component corresponds to the supporting component.

3. The workpiece coating fixture of claim 2, wherein, The pin shaft assembly comprises a first pin hole arranged on the circumferential wall surface of the mounting boss, and a second pin hole symmetrically arranged on the circumferential wall surface of the mounting groove corresponding to the first pin hole.

4. The workpiece coating fixture of claim 2, wherein, The gas distributing cone comprises a circular cone for uniformly distributing gas, and the top angle of the circular cone is 60 DEG, 90 DEG or 120 DEG.

5. The workpiece coating fixture of claim 4, wherein, The connecting assembly comprises a connecting shaft, one end of the connecting shaft is threadedly connected with the stud, and the other end is fixedly connected with the bottom end of the supporting shaft located at the lowermost position.

6. The workpiece coating fixture of claim 2, wherein, The circumferential wall surface of the supporting shaft is provided with a threaded hole, a screw rod is arranged corresponding to the threaded hole, and the screw rod is screwingly arranged in the interior of the threaded hole and used for suspending a test sample.

7. The workpiece coating fixture of claim 5, wherein, The supporting shaft, the mounting boss, the mounting groove, the connecting shaft and the gas distributing cone are coaxially arranged.

Images