PVD (Physical Vapor Deposition) shielding cover plate welding jig

Abstract

The utility model discloses a PVD (Physical Vapor Deposition) shielding cover plate welding jig which comprises a welding machine table fixing base, a mounting base, a positioning base and a welding cover plate, a positioning groove is formed in the mounting base and used for mounting the positioning base, and a plurality of metal cover plate placing tables are arranged in the center of the positioning base and used for positioning and placing metal cover plates. The metal cover plate placing table is provided with a central positioning boss and two side positioning bosses corresponding to the metal cover plate, the welding cover plate covers the positioning base, the welding cover plate is provided with a limiting groove corresponding to the metal cover plate placing table, the limiting groove is internally and correspondingly provided with a supporting platform and a welding opening, and the welding opening is used for correspondingly positioning and placing the shielding cover. According to the welding positioning device, the metal cover plate and the shielding cover can be conveniently positioned, pressed and placed before welding, the machining efficiency and the welding product quality are improved, the welding positioning sleeve is fixed to the upper face of the mounting base in a screw fixing mode, and the positioning sleeve is prevented from falling off in the welding process.

Description

Technical Field

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

[0002] Existing watch case PVD process for masking cover plates, such as Figure 1 As shown, it includes a metal cover plate 1 and a shielding cover 2, and the shielding cover needs to be welded onto the metal cover plate.

[0003] The existing welding fixtures for welding shielding covers on metal plates only use clamping claws, which cannot position the structural components being welded. This results in inaccurate positioning of the welded components, affecting product quality. Furthermore, the welding positioning sleeves of the existing welding fixtures are prone to detaching during use, failing to provide effective support. Utility Model Content

[0004] To solve the above-mentioned technical problems, this utility model designs a PVD shielding cover plate welding fixture.

[0005] The present invention adopts the following technical solution:

[0006] A PVD masking cover welding fixture includes a welding machine base, a mounting base, a positioning base, and a welding cover plate installed sequentially. A positioning sleeve is installed at each of the four corners of the mounting base. The two sides of the positioning sleeve are bolted to corresponding bolt mounting holes on the mounting base. The mounting base has positioning grooves for mounting the positioning base. Several metal cover plate placement platforms are arranged at the center of the positioning base for positioning and placing the metal cover plates. A central positioning boss and two side positioning bosses are provided on the metal cover plate placement platforms corresponding to the metal cover plates. The welding cover plate covers the positioning base. A limiting groove is provided on the welding cover plate corresponding to the metal cover plate placement platforms. A support platform and a welding port are correspondingly provided in the limiting groove. The welding port is used to position and place the masking cover. A welding clamping mechanism is provided on the welding cover plate corresponding to the support platform, and the welding clamping mechanism is used to clamp and limit the masking cover.

[0007] Preferably, the welding machine base is provided with multiple screw mounting holes for fixing to the welding machine base by bolts. Positioning posts are provided at the four corners of the welding machine base. The positioning posts are inserted into the positioning sleeves and are connected to the corresponding positioning post insertion holes on the mounting base.

[0008] Preferably, the center distances of the left and right positioning columns on the four corners of the welding machine base are unequal.

[0009] Preferably, the positioning base is connected to the mounting base by two positioning pins and secured with four screws.

[0010] Preferably, the mounting base has a first positioning pin insertion hole and a second positioning pin insertion hole on both sides, and a first positioning pin and a second positioning pin are respectively inserted into the first positioning pin insertion hole and the second positioning pin insertion hole. The welding cover plate is correspondingly provided with a first positioning pin insertion hole and a second positioning pin insertion hole, and is connected with the first positioning pin and the second positioning pin.

[0011] Preferably, the locating pin one and locating pin two are designed asymmetrically.

[0012] Preferably, the welding clamping claw mechanism includes a hinge seat, a clamping claw, and a clamping block. The hinge seat is fixedly connected to the welding cover plate, the clamping claw is hinged to the hinge seat, and the clamping block is fixedly connected to the end of the clamping claw. The clamping block is engaged and clamped at the support platform.

[0013] Preferably, the clamping block and the welding cover plate are magnetic components, and the positioning base is embedded with multiple cylindrical magnets to attract the clamping block and the welding cover plate.

[0014] Preferably, the bottom of the mounting base is threaded with a support screw, the bottom surface of which is lower than the bottom surface of the positioning sleeve, and the bottom surface of the positioning sleeve is lower than the bottom surface of the mounting base.

[0015] Preferably, the welding cover plate is equipped with a handle.

[0016] The beneficial effects of this utility model are as follows: This utility model designs a PVD masking cover welding fixture, which facilitates the positioning and pressing of the metal cover and masking cover before welding, improving processing efficiency and welding product quality. The welding positioning sleeve is fixed to the mounting base by screws to prevent the positioning sleeve from falling off during the welding process. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of a PVD process shielding cover plate for welding products according to this utility model;

[0018] Figure 2 This is a schematic diagram of the structure of this utility model;

[0019] Figure 3 This is an exploded view of this utility model;

[0020] Figure 4 This is a schematic diagram of a structure of the welding machine base fixing base in this utility model;

[0021] Figure 5 This is a schematic diagram of one structure of the mounting base in this utility model;

[0022] Figure 6 This is a schematic diagram of a positioning base in this utility model;

[0023] Figure 7This is a schematic diagram of a welding cover plate in this utility model;

[0024] Figure 8 This is a side view of the mounting base in this utility model;

[0025] In the diagram: 1. Metal cover plate, 2. Shielding cover, 3. Welding machine base, 4. Mounting base, 5. Positioning base, 6. Welding cover plate, 7. Welding claw mechanism, 8. Handle, 9. Hinge seat, 10. Claw, 11. Clamping block, 12. Positioning pin, 13. Positioning sleeve, 14. Positioning pin insertion hole, 15. Bolt mounting hole, 16. Positioning pin insertion hole one, 17. Positioning pin insertion hole two, 18. Bolt, 19. Positioning pin one, 20. Positioning pin two, 21. Cylindrical magnet, 22. Metal cover plate placement platform, 23. Central positioning boss, 24. Side positioning bosses, 25. Positioning pin hole one, 26. Positioning pin hole two, 27. Limiting groove, 28. Support platform, 29. Weld joint, 30. Support screw. Detailed Implementation

[0026] The technical solution of this utility model will be further described in detail below through specific embodiments and with reference to the accompanying drawings:

[0027] Example: Figures 1-8 As shown, a PVD masking cover welding fixture includes a welding machine base 3, a mounting base 4, a positioning base 5, and a welding cover 6 installed sequentially. A positioning sleeve 13 is installed at each of the four corners of the mounting base. The two sides of the positioning sleeve are locked to the corresponding bolt mounting holes 15 on the mounting base using bolts 18. The mounting base has a positioning groove for installing the positioning base. Two metal cover plate placement platforms 22 are placed at the center of the positioning base for positioning the metal cover plate. A central positioning boss 23 and two side positioning bosses 24 are provided on the metal cover plate placement platforms corresponding to the metal cover plate. The welding cover plate covers the positioning base. A limiting groove 27 is provided on the welding cover plate corresponding to the metal cover plate placement platform. A support platform 28 and a welding port 29 are provided in the limiting groove. The welding port is used to position and place the masking cover. A welding claw mechanism 7 is provided on the welding cover plate corresponding to the support platform. The welding claw mechanism is used to press and limit the masking cover.

[0028] The above-mentioned structural design of this utility model facilitates the positioning and clamping of the metal cover plate and shielding cover before welding, improving processing efficiency and welding product quality. The welding positioning sleeve is fixed to the mounting base by screws to prevent the positioning sleeve from falling off during the welding process.

[0029] The welding machine base has multiple screw mounting holes for bolt fixing to the welding machine. Positioning posts 12 are located at the four corners of the base, inserting into positioning sleeves and engaging with corresponding positioning post insertion holes 14 on the mounting base. This facilitates the assembly and disassembly of the welding machine base and ensures the installation accuracy of the mounting base.

[0030] The positioning posts at the four corners of the welding machine's fixed base are designed with unequal center distances on the left and right sides. This design ensures the assembly accuracy of the mounting base while preventing it from being installed in the wrong orientation.

[0031] The positioning base is connected to the mounting base by two positioning pins and secured with four screws. This ensures the accuracy and positional consistency of the positioning base.

[0032] The mounting base has two locating pin insertion holes, one (16) and two (17), on both sides. Locating pins 19 and 20 are respectively inserted into locating pin holes 1 and 20. The welding cover plate has corresponding locating pin holes 25 and 26, which mate with locating pins 1 and 2. The locating pins 1 and 2 are asymmetrically designed to ensure the assembly accuracy of the welding cover plate and prevent it from being assembled in the wrong orientation.

[0033] The welding clamping claw mechanism includes a hinge seat 9, a clamping claw 10, and a clamping block 11. The hinge seat is fixedly connected to the welding cover plate, the clamping claw is hinged to the hinge seat, and the clamping block is fixedly connected to the end of the clamping claw. The clamping block is pressed against the support platform.

[0034] The clamping block and welding cover plate are magnetic components, and the positioning base is embedded with five cylindrical magnets 21 to attract the clamping block and welding cover plate. This allows the clamping block and welding cover plate to be magnetically held during the welding process, making it convenient to use and improving processing efficiency.

[0035] The mounting base has a threaded support screw (30) at its bottom. The bottom surface of the support screw is lower than the bottom surface of the positioning sleeve, which in turn is lower than the bottom surface of the mounting base. The welding fixture is placed on the upper connecting plate of the machine tool, with the support bottom surface being the same as the positioning sleeve support bottom surface, completely avoiding the bottom surface of the mounting base. The sleeve is heat-treated to HRC60 to increase hardness and reduce operational wear, thus improving support accuracy. When installing and welding products outside the machine tool, the support screw's support bottom surface is used to avoid the bottom surfaces of the positioning sleeve and the mounting base, reducing fixture wear during operation.

[0036] A handle 8 is installed on the welding cover plate to facilitate its movement.

[0037] The embodiments described above are merely preferred solutions of this utility model and are not intended to limit this utility model in any way. Other variations and modifications are possible without departing from the technical solutions described in the claims.

Claims

1. A PVD shadow mask welding jig, characterized by, It includes a welding machine base, a mounting base, a positioning base, and a welding cover plate installed sequentially. A positioning sleeve is installed at each of the four corners of the mounting base. The two sides of the positioning sleeve are bolted to the corresponding bolt holes on the mounting base. The mounting base has positioning grooves for installing the positioning base. Several metal cover plate placement platforms are located at the center of the positioning base for positioning the metal cover plates. Each metal cover plate placement platform has a central positioning boss and two side positioning bosses corresponding to the metal cover plates. The welding cover plate covers the positioning base. A limiting groove is provided on the welding cover plate corresponding to the metal cover plate placement platform. A support platform and a welding port are correspondingly provided in the limiting groove. The welding port is used to position and place a shielding cover. A welding claw mechanism is provided on the welding cover plate corresponding to the support platform. The welding claw mechanism is used to press and limit the shielding cover.

2. The PVD shielding cover plate welding jig according to claim 1, characterized in that, The welding machine base is provided with multiple screw mounting holes for fixing to the welding machine base by bolts. The four corners of the welding machine base are provided with positioning posts, which are inserted into positioning sleeves and connected to the corresponding positioning post insertion holes on the mounting base.

3. The PVD shielding cover plate welding jig according to claim 2, characterized in that, The center distance between the left and right positioning columns on the four corners of the fixed base of the welding machine is not equal.

4. The PVD masking cover welding fixture according to claim 1, characterized in that, The positioning base is connected to the mounting base by two positioning pins and is secured with four screws.

5. The PVD shield cover plate welding jig according to claim 1, wherein, The mounting base has a first positioning pin insertion hole and a second positioning pin insertion hole on both sides. Positioning pin 1 and positioning pin 2 are respectively inserted into the first positioning pin insertion hole and the second positioning pin insertion hole. The welding cover plate is correspondingly provided with the first positioning pin insertion hole and the second positioning pin insertion hole, and is connected with the first positioning pin and the second positioning pin.

6. The PVD shield cover plate welding jig according to claim 5, characterized in that, The positioning pin one and positioning pin two are designed asymmetrically.

7. The PVD shield cover plate welding jig according to claim 1, wherein, The welding clamping claw mechanism includes a hinge seat, a clamping claw, and a clamping block. The hinge seat is fixedly connected to the welding cover plate, the clamping claw is hinged to the hinge seat, and the end of the clamping claw is fixedly connected to the clamping block, which is then pressed against the support platform.

8. The PVD shield cover plate welding jig according to claim 7, characterized in that, The clamping block and welding cover plate are magnetic components, and the positioning base is embedded with multiple cylindrical magnets to attract the clamping block and welding cover plate.

9. The PVD shield cover plate welding jig according to claim 1, wherein, The mounting base is threaded with a support screw at its bottom. The bottom surface of the support screw is lower than the bottom surface of the positioning sleeve, and the bottom surface of the positioning sleeve is lower than the bottom surface of the mounting base.

10. The PVD shield cover plate welding jig according to claim 1, wherein, A handle is installed on the welding cover plate.

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