Fixing tool for welding

Abstract

The utility model discloses a fixing tool for welding, which comprises a first positioning piece, a second positioning piece, a third positioning piece and a fourth positioning piece, and the second positioning piece is mounted at the top of the nozzle and is used for positioning the upper bottom piece on the basis of the lower bottom piece after the lower bottom piece is welded. The fixing tool is convenient and fast to install and accurate in positioning, and welding quality of the nozzle is guaranteed.

Description

Technical Field

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

[0002] like Figure 1 The nozzle shown is a crucial component of the vapor deposition equipment. This hourglass-shaped nozzle contains a lower base plate and an upper base plate. The lower base plate is welded to the inner wall of the nozzle via evenly distributed lower connecting plates on its outer periphery, and the upper base plate is welded to the inner wall of the nozzle via evenly distributed upper connecting plates on its outer periphery. The relative position and angle of the lower and upper base plates directly affect the nozzle's performance. Therefore, a welding fixture is designed to ensure the welding accuracy of the lower and upper base plates. Utility Model Content

[0003] In view of the above-mentioned defects or deficiencies in the prior art, it is desirable to provide a welding fixture that is easy to install, accurately positioned, and ensures the welding quality of the nozzle.

[0004] This utility model provides a welding fixture, comprising:

[0005] The first positioning element extends into the nozzle from the bottom and is used to position the lower base plate.

[0006] The second positioning component, installed on the top of the nozzle, is used to position the upper substrate based on the lower substrate after the lower substrate has been welded.

[0007] Furthermore, the first positioning component includes a base and a positioning post. The top surface of the base is provided with a threaded groove, and the bottom end of the positioning post is threadedly connected to the threaded groove. The outer diameter of the positioning post is clearance-fitted with the minimum inner diameter of the nozzle. A locking ring is threadedly sleeved on the bottom end of the positioning post above the base. The thread in the locking ring is opposite to the thread in the threaded groove. Positioning blocks are provided on the top surface of the positioning post between adjacent lower connecting plates of the lower base plate. The width between adjacent positioning blocks is clearance-fitted with the width of the lower connecting plate.

[0008] Furthermore, the base, positioning post, and locking ring are all made of stainless steel or aluminum alloy; the edges of the positioning block adjacent to the lower connecting plate are rounded.

[0009] Furthermore, the second positioning component includes a positioning seat with an embedded groove. A first positioning groove, corresponding to the lower connecting plate, is formed on the outer periphery of the embedded groove at the top of the positioning seat. The width of the first positioning groove is in clearance fit with the width of the lower connecting plate. A second positioning groove, corresponding to the upper connecting plate of the upper base plate, is formed on the outer periphery of the embedded groove at the top of the positioning seat. The width of the second positioning groove is in clearance fit with the width of the upper connecting plate. The height difference between the second and first positioning grooves is consistent with the height difference between the upper and lower connecting plates. The angular orientation of the upper connecting plate relative to the lower connecting plate is consistent with the angular orientation of the second positioning groove relative to the first positioning groove.

[0010] Furthermore, the second positioning component is integrally formed from stainless steel or aluminum alloy; the edges of the first positioning groove adjacent to the lower connecting plate are rounded; the edges of the second positioning groove adjacent to the upper connecting plate are rounded.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] The fixing fixture of this utility model is equipped with a first positioning member and a second positioning member. When welding the nozzle, the first positioning member is first inserted into the nozzle from the bottom, and then the lower base plate is placed on the first positioning member to position it. At this point, the lower base plate can be welded. After the lower base plate is welded, the upper base plate is placed inside the nozzle, and then the second positioning member is placed at the top inside the nozzle to position the upper base plate based on the lower base plate. At this point, the upper base plate can be welded. The fixing fixture of this application is convenient to install, provides accurate positioning, and ensures the welding quality of the nozzle.

[0013] It should be understood that the description in this utility model description section is not intended to limit the key or essential features of the embodiments of this utility model, nor is it intended to restrict the scope of this utility model. Other features of this utility model will become readily apparent from the following description. Attached Figure Description

[0014] Other features, objects, and advantages of this invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0015] Figure 1 This is a schematic diagram of the nozzle structure;

[0016] Figure 2 This is a structural diagram of a fixed tooling;

[0017] Figure 3 A schematic diagram of the structure for positioning the lower substrate by the first positioning component;

[0018] Figure 4A cross-sectional structural diagram showing the positioning of the lower base plate by the first positioning component;

[0019] Figure 5 A schematic diagram of the structure for positioning the upper substrate by the second positioning component;

[0020] Figure 6 This is a cross-sectional structural diagram of the second positioning component positioning the upper substrate.

[0021] The diagram labels are: 1. First positioning element; 2. Second positioning element; 3. Nozzle;

[0022] 11. Base; 12. Positioning pin; 13. Threaded groove; 14. Locking ring; 15. Positioning block;

[0023] 21. Positioning seat; 22. Insert groove; 23. First positioning groove; 24. Second positioning groove;

[0024] 31. Lower film; 32. Lower connecting plate; 33. Upper film; 34. Upper connecting plate. Detailed Implementation

[0025] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the relevant invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, only the parts relevant to the invention are shown in the accompanying drawings.

[0026] It should be noted that, where there is no conflict, the embodiments and features in the embodiments of this utility model can be combined with each other. The present utility model will now be described in detail with reference to the accompanying drawings and embodiments.

[0027] Please refer to Figures 1-6 An embodiment of this utility model provides a welding fixture, comprising:

[0028] The first positioning element 1 extends into the nozzle 3 from the bottom and is used to position the lower base plate 31.

[0029] The second positioning component 2 is installed on the top of the nozzle 3 and is used to position the upper base plate 1 based on the lower base plate 31 after the lower base plate 31 is welded.

[0030] In this embodiment, when welding the nozzle 3, the first positioning member 1 is first inserted into the nozzle 3 from the bottom, and then the lower base plate 31 is placed on the first positioning member 1 to position the lower base plate 31. At this time, the lower base plate 31 can be welded together.

[0031] After the lower base plate 31 is welded, the upper base plate 33 is placed inside the nozzle 3 above the lower base plate 31. Then, the second positioning member 2 is placed on top inside the nozzle 3, and the upper base plate 32 is positioned based on the lower base plate 31, ensuring the relative position and angular orientation of the upper base plate 33 and the lower base plate 31. At this point, the upper base plate 33 can be welded together. The fixing fixture of this application is easy to install and accurately positioned, ensuring the welding quality of the nozzle 3.

[0032] In a preferred embodiment, such as Figure 2 and Figure 4 As shown, the first positioning component 1 includes a base 11 and a positioning post 12. The top surface of the base 11 is provided with a threaded groove 13. The bottom end of the positioning post 12 is threadedly connected to the threaded groove 13. The outer diameter of the positioning post 12 is clearance-fitted with the minimum inner diameter of the nozzle 3. The bottom end of the positioning post 12 is located above the base 11 and is threadedly fitted with a locking ring 14. The thread in the locking ring 14 is opposite to the thread in the threaded groove 13. The top surface of the positioning post 12 is provided with positioning blocks 15 between the lower connecting plates 32 adjacent to the lower base plate 31. The width between the adjacent positioning blocks 15 is clearance-fitted with the width of the lower connecting plate 32.

[0033] In this embodiment, when positioning the lower base plate 31, the height of the positioning pin 12 is first adjusted according to the height of the lower base plate 31 inside the nozzle 3. Then, the locking ring 14 is rotated so that it abuts against the top surface of the base 11. The threads of the locking ring 14 and the threaded groove 13 are opposite, so the positioning pin 12 cannot rotate and its height is locked. The height of the positioning pin 12 is adjustable, which can compensate for the machining error of the nozzle 3 to achieve accurate positioning of the lower base plate 31.

[0034] Then, the positioning post 12 is inserted from the bottom of the nozzle 3, and the nozzle 3 falls on the base 11. Then, the lower base plate 31 is placed on the top of the positioning post 12, and the positioning post 12 positions the height of the lower base plate 31. The connecting plates 32 on the outer periphery of the lower base plate 31 are respectively embedded between two adjacent positioning blocks 15 to position the lower base plate 31 in the angular direction, so as to avoid the lower base plate 31 from shifting during welding, thus ensuring the welding accuracy of the lower base plate 31 and guaranteeing the welding quality of the nozzle 3.

[0035] In a preferred embodiment, such as Figure 2 and Figure 3 As shown, the base 11, positioning post 12 and locking ring 14 are all made of stainless steel or aluminum alloy, which have high structural strength, are not easily deformed, are not easily corroded and rusted, and have a long service life. The edges of the positioning block 15 and the lower connecting plate 32 are rounded to avoid the problem of the edge of the positioning block 15 scratching the lower connecting plate 32 during installation.

[0036] In a preferred embodiment, such as Figure 2 and Figure 6As shown, the second positioning component 2 includes a positioning seat 21, on which a groove 22 is provided. The top of the positioning seat 21, located on the outer periphery of the groove 22, has a first positioning groove 23 corresponding to the lower connecting plate 32. The width of the first positioning groove 23 is in clearance fit with the width of the lower connecting plate 32. The top of the positioning seat 21, located on the outer periphery of the groove 22, has a second positioning groove 24 corresponding to the upper connecting plate 34 of the upper base plate 33. The width of the second positioning groove 24 is in clearance fit with the width of the upper connecting plate 34. The height difference between the second positioning groove 24 and the first positioning groove 23 is consistent with the height difference between the upper connecting plate 34 and the lower connecting plate 32. The angular direction of the upper connecting plate 34 relative to the lower connecting plate 32 is consistent with the angular direction of the second positioning groove 24 relative to the first positioning groove 23.

[0037] In this embodiment, after the lower base plate 31 is welded, the upper base plate 33 is welded. First, the upper base plate 33 is placed inside the nozzle 3, and then the second positioning member 2 is flipped onto the upper base plate 33 so that the upper base plate 33 is embedded in the groove 22, and each upper connecting plate 34 is embedded in the corresponding second positioning groove 24. Then, the positioning seat 21 is rotated so that each lower connecting plate 32 is embedded in the corresponding first positioning groove 23, completing the positioning and installation of the upper base plate 33. At this time, the upper base plate 33 can be welded and connected, ensuring the welding accuracy of the upper base plate 33 and guaranteeing the welding quality of the nozzle 3.

[0038] In a preferred embodiment, such as Figure 2 and Figure 5 As shown, the second positioning component 2 is integrally formed from stainless steel or aluminum alloy, which has high structural strength, is not easily deformed, is not easily corroded or rusted, and has a long service life; the edges of the first positioning groove 23 adjacent to the lower connecting plate 32 are rounded; the edges of the second positioning groove 24 adjacent to the upper connecting plate 34 are rounded to avoid the problem of the edge of the positioning groove scratching the connecting plate during installation.

[0039] In the description of this specification, the terms "connection," "installation," and "fixing," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0040] In the description of this specification, the terms "one embodiment," "some embodiments," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this application. 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.

[0041] The above are merely preferred embodiments of this application and are not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A welding fixture, characterized in that, include: The first positioning element (1) extends into the nozzle (3) from the bottom and is used to position the lower base plate (31); The second positioning component (2) is installed on the top of the nozzle (3) and is used to position the upper base plate (33) based on the lower base plate (31) after the lower base plate (31) is welded.

2. The welding fixture according to claim 1, characterized in that, The first positioning component (1) includes a base (11) and a positioning post (12). The top surface of the base (11) is provided with a threaded groove (13). The bottom end of the positioning post (12) is threadedly connected to the threaded groove (13). The outer diameter of the positioning post (12) is clearance-fitted with the minimum inner diameter of the nozzle (3). The bottom end of the positioning post (12) is threadedly fitted with a locking ring (14) above the base (11). The thread in the locking ring (14) is opposite to the thread in the threaded groove (13). The top surface of the positioning post (12) is provided with positioning blocks (15) between the lower connecting plates (32) adjacent to the lower base plate (31). The width between the adjacent positioning blocks (15) is clearance-fitted with the width of the lower connecting plate (32).

3. The welding fixture according to claim 2, characterized in that, The base (11), positioning post (12) and locking ring (14) are all made of stainless steel or aluminum alloy; the positioning block (15) has rounded edges adjacent to the lower connecting plate (32).

4. The welding fixture according to claim 1, characterized in that, The second positioning component (2) includes a positioning seat (21), on which a groove (22) is provided. The top of the positioning seat (21) is located on the outer periphery of the groove (22) and a first positioning groove (23) is provided, which corresponds one-to-one with the lower connecting plate (32). The width of the first positioning groove (23) is in clearance fit with the width of the lower connecting plate (32). The top of the positioning seat (21) is located on the outer periphery of the groove (22) and a second positioning groove (24) is provided, which corresponds one-to-one with the upper connecting plate (34) of the upper base plate (33). The width of the second positioning groove (24) is in clearance fit with the width of the upper connecting plate (34). The height difference between the second positioning groove (24) and the first positioning groove (23) is consistent with the height difference between the upper connecting plate (34) and the lower connecting plate (32). The angular direction of the upper connecting plate (34) relative to the lower connecting plate (32) is consistent with the angular direction of the second positioning groove (24) relative to the first positioning groove (23).

5. The welding fixture according to claim 4, characterized in that, The second positioning component (2) is integrally formed from stainless steel or aluminum alloy; the edges of the first positioning groove (23) adjacent to the lower connecting plate (32) are rounded; the edges of the second positioning groove (24) adjacent to the upper connecting plate (34) are rounded.

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