Automatic welding and positioning device for door handle

Abstract

The utility model relates to an automatic door handle welding and positioning device. A driving assembly used for driving a first fixing assembly and a second positioning and fixing assembly to move in opposite directions is arranged in a workbench. The rotating device comprises a rotating assembly arranged on the workbench and used for driving the welding device to rotate, and an adjusting assembly used for driving the rotating assembly to rotate is arranged below the rotating assembly. A first motor drives a rotating shaft to rotate, a first threaded rod and a second threaded rod can be driven to rotate under meshing connection among a first bevel gear, a second bevel gear and a third bevel gear, a first clamping plate and a second clamping plate are made to get close to each other, the door handle is positioned, clamped and fixed, and then a second motor drives the rotating shaft to rotate; and under the meshing connection between the gear and the gear ring, the gear ring can be driven to rotate, meanwhile, the circular ring can be driven to synchronously rotate at a constant speed, and then a welding gun on the mechanical arm can be driven to rotate around the welding position of the door handle for automatic welding.

Description

Technical Field

[0001] This utility model relates to the field of door handle manufacturing technology, and in particular to an automatic welding and positioning device for door handles. Background Technology

[0002] Door handles are indispensable door accessories, possessing both decorative and functional qualities. Stainless steel door handles often require welding during manufacturing. For example, an automatic welding and positioning device for door handles, as described in Chinese patent application CN202220598267.5, includes a power mechanism, a turntable, a limiting mold, and a welding torch. The power mechanism is fixedly installed on the lower end face of the worktable; the output end of the power mechanism passes through the worktable and is fixedly connected to the turntable, driving the turntable to rotate when the power mechanism is activated; the limiting mold is fixedly installed on the upper end face of the turntable; the limiting mold has an installation groove in which the door handle is installed; the welding torch is fixedly installed on the upper end face of the worktable, with its output end aligned with the weld seam of the door handle.

[0003] However, when welding door handle parts with a welding torch, the output device of the welding torch needs to be clamped onto the door handle in order to weld the door handle parts. Existing welding methods use a power mechanism to drive the door handle to rotate to achieve welding. This welding method causes the output device of the welding torch to get tangled on the turntable, which causes the welding torch to tip over and affects the welding of the door handle. Utility Model Content

[0004] To address the problem mentioned in the background art that the welding method of rotating the door handle via a power mechanism causes the welding torch output device to become entangled on the turntable, thus causing the welding torch to tip over, this utility model provides the following technical solution: an automatic welding and positioning device for door handles, comprising a worktable, a welding device for welding the door handle is provided at the top of the worktable, a positioning and fixing device for positioning and clamping the door handle is provided at the top of the worktable, and a rotating device for driving the welding device to rotate is provided inside the worktable.

[0005] The positioning and fixing device includes a fixing component one and a positioning and fixing component two disposed in the workbench for positioning and clamping the door handle, and the moving directions of the fixing component one and the positioning and fixing component two are opposite. The workbench is provided with a driving component for driving the fixing component one and the positioning and fixing component two to move in opposite directions.

[0006] The rotating device includes a rotating assembly disposed on the worktable for driving the welding device to rotate, and an adjusting assembly disposed below the rotating assembly for driving the rotating assembly to rotate.

[0007] Furthermore, the top of the worktable is provided with an annular groove for the rotation of the rotating assembly.

[0008] Furthermore, the drive assembly includes a rotating shaft movably connected to the worktable for rotation, a motor for driving the rotating shaft to rotate is fixedly installed at the bottom end of the rotating shaft, and a bevel gear for driving the fixing assembly and the positioning fixing assembly to clamp and fix the door handle is fixedly installed at the top end of the rotating shaft.

[0009] Furthermore, the positioning and fixing assembly includes a bevel gear 2 disposed in the workbench for meshing with a bevel gear 1. A threaded rod 1 for rotation is fixedly installed at the rear end of the bevel gear 2, and a clamping plate 1 for back-and-forth movement is threadedly connected to the rod body of the threaded rod 1.

[0010] Furthermore, the positioning and fixing component two includes a bevel gear three disposed in the workbench for meshing with the bevel gear one, a threaded rod two for rotation fixedly installed at the front end of the bevel gear three, and a clamping plate two for back-and-forth movement threadedly connected to the rod body of the threaded rod two.

[0011] Furthermore, the adjustment assembly includes a rotating shaft movably connected to the worktable, a second motor for driving the rotating shaft to rotate is fixedly installed at the bottom end of the rotating shaft, and a gear for driving the rotating assembly to rotate is fixedly installed at the top end of the rotating shaft.

[0012] Furthermore, the rotating assembly includes a gear ring disposed within the worktable for meshing with a gear, a circular ring for driving the welding device to rotate fixedly mounted on the top end of the gear ring, and a fixing block for supporting the welding device fixedly mounted on the top end of the circular ring.

[0013] Furthermore, the welding device includes a support column fixedly installed on the top of the fixed block, a robotic arm for adjusting the angle is provided at the bottom end of the support column, and a welding torch for welding the door handle is provided at the bottom end of the robotic arm.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows: By setting up a positioning and fixing device and a rotating device, when it is necessary to weld the door handle, the rotating shaft can be driven by motor one, and under the meshing connection between bevel gear one, bevel gear two and bevel gear three, the threaded rod one and threaded rod two can be driven to rotate, so that clamping plate one and clamping plate two are brought closer to each other and the door handle is positioned, clamped and fixed. Then, the rotating shaft can be driven by motor two, and under the meshing connection between the gear and the toothed ring, the toothed ring can be driven to rotate, and the ring can be driven to rotate synchronously and uniformly, thereby driving the welding gun on the robotic arm to rotate around the welding point of the door handle for automatic welding. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0016] Figure 2 This is a cross-sectional view of the workbench of this utility model.

[0017] Figure 3 This is a schematic diagram of the positioning and fixing device of this utility model.

[0018] Figure 4 This is a schematic diagram of the rotating device structure of this utility model.

[0019] The following is a list of component names represented by the reference numerals in the attached figures: 100-Workbench, 101-Annular groove.

[0020] 200 - Welding device, 210 - Support column, 220 - Robotic arm, 230 - Welding torch.

[0021] 300-Positioning and fixing device, 310-Drive assembly, 311-Motor 1, 312-Rotating shaft, 313-Bevel gear 1, 320-Positioning and fixing assembly 1, 321-Bevel gear 2, 322-Threaded rod 1, 323-Clamping plate 1, 330-Positioning and fixing assembly 2, 331-Bevel gear 3, 332-Threaded rod 2, 333-Clamping plate 2.

[0022] 400-Rotating device, 410-Adjusting component, 411-Motor II, 412-Rotating shaft, 413-Gear, 420-Rotating component, 421-Gear ring, 422-Ring, 423-Fixing block. Detailed Implementation

[0023] The preferred embodiments of this utility model are described in detail below, and a clear and complete explanation is given in conjunction with the accompanying drawings.

[0024] Please see Figures 1-4 This utility model provides an automatic welding and positioning device for door handles.

[0025] The device includes a workbench 100, a welding device 200 for welding door handles is provided at the top of the workbench 100, a positioning and fixing device 300 for positioning and clamping the door handles is provided at the top of the workbench 100, and a rotating device 400 for driving the welding device 200 to rotate is provided inside the workbench 100.

[0026] The top of the worktable 100 is provided with an annular groove 101 for the rotation of the rotating assembly 420.

[0027] The welding device 200 includes a support column 210 fixedly installed on the top of the fixing block 423. The bottom end of the support column 210 is provided with a robotic arm 220 for adjusting the angle. The bottom end of the robotic arm 220 is provided with a welding torch 230 for welding the door handle. Since the robotic arm 220 is existing technology, the welding torch 230 can be moved to the door handle welding position of the positioning and fixing device 300 by using the robotic arm 220, so that the welding position of the door handle can be easily welded.

[0028] The positioning and fixing device 300 includes a fixing component 320 and a positioning and fixing component 330 disposed in the worktable 100 for positioning and clamping the door handle, and the moving directions of the fixing component 320 and the positioning and fixing component 330 are opposite. The worktable 100 is provided with a driving component 310 for driving the fixing component 320 and the positioning and fixing component 330 to move in opposite directions.

[0029] The drive assembly 310 includes a rotating shaft 312 movably connected to the worktable 100 for rotation, and the shaft of the rotating shaft 312 is connected to the table body of the worktable 100 through a bearing to facilitate the rotation of the rotating shaft 312; a motor 311 for driving the rotating shaft 312 to rotate is fixedly installed at the bottom end of the rotating shaft 312, and the shaft end of the output shaft of the motor 311 is connected to the bottom end of the rotating shaft 312 through a coupling; a bevel gear 313 for driving the fixing assembly 320 and the positioning fixing assembly 330 to clamp and fix the door handle is fixedly installed at the top end of the rotating shaft 312.

[0030] The positioning and fixing assembly 320 includes a bevel gear 321 disposed within the worktable 100 for meshing with a bevel gear 313. A threaded rod 322 for rotation is fixedly mounted on the rear end of the bevel gear 321, and the rod body of the threaded rod 322 is connected to the table body of the worktable 100 through a bearing to facilitate the rotation of the threaded rod 322. A clamping plate 323 for back-and-forth movement is threadedly connected to the rod body of the threaded rod 322, and the width of the clamping plate 323 is the same as the groove width of the slide of the worktable 100, so as to always maintain the back-and-forth movement of the clamping plate 323.

[0031] The positioning and fixing assembly 330 includes a bevel gear 331 disposed within the worktable 100 for meshing with a bevel gear 313. A threaded rod 332 for rotation is fixedly mounted at the front end of the bevel gear 331, and the rod body of the threaded rod 332 is connected to the worktable 100 via a bearing to facilitate rotation. The thread direction of the threaded rod 332 is opposite to that of the threaded rod 322, so that the rotation of the threaded rods 322 and 332 causes the clamping plates 323 and 333 to move in opposite directions. A threaded connection for forward and backward movement is also present on the rod body of the threaded rod 332. Clamping plate 2 333; and the width of clamping plate 2 333 is the same as the width of the groove of the worktable 100, so that clamping plate 2 333 always moves back and forth; so that when it is necessary to position and fix the door handle, the rotating shaft 312 can be driven to rotate by motor 1 311, and under the meshing connection between bevel gear 1 313, bevel gear 2 321 and bevel gear 331, threaded rod 1 322 and threaded rod 2 332 can be driven to rotate, so that clamping plate 1 323 and clamping plate 2 333 move closer to each other and position and clamp the door handle; finally, the welding device 200 is driven by rotating device 400 to perform welding around the welding point of the door handle.

[0032] The rotating device 400 includes a rotating assembly 420 disposed on the worktable 100 for driving the welding device 200 to rotate. An adjusting assembly 410 for driving the rotating assembly 420 to rotate is disposed below the rotating assembly 420, thereby preventing the wiring harness of the output device on the welding torch 230 from getting tangled on the turntable.

[0033] The adjustment assembly 410 includes a rotating shaft 412 movably connected to the worktable 100, and the rotating shaft 412 is connected to the platform of the worktable 100 through a bearing to facilitate the rotation of the rotating shaft 412; a second motor 411 for driving the rotating shaft 412 to rotate is fixedly installed at the bottom end of the rotating shaft 412, and the shaft end of the output shaft of the second motor 411 is connected to the bottom end of the rotating shaft 412 through a coupling; a gear 413 for driving the rotating assembly 420 to rotate is fixedly installed at the top end of the rotating shaft 412.

[0034] The rotating assembly 420 includes a gear ring 421 disposed within the worktable 100 for meshing with gear 413. A circular ring 422 for driving the welding device 200 to rotate is fixedly mounted on the top of the gear ring 421, and the circular ring 422 can rotate within the ring groove 101. A fixing block 423 for supporting the welding device 200 is fixedly mounted on the top of the circular ring 422. Thus, when welding of the door handle is required, the rotating shaft 312 can be driven to rotate by the motor 311, and the rotating shaft 312 can rotate through the bevel gear 313, bevel gear 321, and bevel gear 313. With the meshing connection between 31, the threaded rod 322 and the threaded rod 332 can be rotated, causing the clamping plate 323 and the clamping plate 333 to move closer to each other and position and clamp the door handle. Then, the motor 411 drives the rotating shaft 412 to rotate, and with the meshing connection between the gear 413 and the gear ring 421, the gear ring 421 can be rotated. At the same time, the ring 422 can be rotated synchronously and uniformly, which in turn can drive the welding gun 230 on the robotic arm 220 to rotate and automatically weld around the welding point of the door handle.

[0035] Based on the above description and accompanying drawings, those skilled in the art can understand and implement this utility model. Furthermore, any non-creative modifications made to this utility model by those skilled in the art without inventive effort are still within the protection scope of this utility model.

Claims

1. An automatic welding and positioning device for door handles, comprising a workbench (100), characterized in that: The top of the workbench (100) is provided with a welding device (200) for welding the door handle, the top of the workbench (100) is provided with a positioning and fixing device (300) for positioning and clamping the door handle, and the workbench (100) is provided with a rotating device (400) for driving the welding device (200) to rotate. The positioning and fixing device (300) includes a fixing component one (320) and a positioning and fixing component two (330) disposed in the workbench (100) for positioning and clamping the door handle, and the moving directions of the fixing component one (320) and the positioning and fixing component two (330) are opposite. The workbench (100) is provided with a driving component (310) for driving the fixing component one (320) and the positioning and fixing component two (330) to move in opposite directions. The rotating device (400) includes a rotating assembly (420) disposed on the worktable (100) for driving the welding device (200) to rotate, and an adjusting assembly (410) for driving the rotating assembly (420) to rotate is disposed below the rotating assembly (420).

2. The automatic welding and positioning device for door handles according to claim 1, characterized in that: The top of the worktable (100) is provided with an annular groove (101) for the rotation of the rotating assembly (420).

3. The automatic welding and positioning device for door handles according to claim 1, characterized in that: The drive assembly (310) includes a rotating shaft (312) movably connected to the worktable (100) for rotation. A motor (311) for driving the rotating shaft (312) to rotate is fixedly installed at the bottom end of the rotating shaft (312). A bevel gear (313) for driving the fixing assembly (320) and the positioning fixing assembly (330) to clamp and fix the door handle is fixedly installed at the top end of the rotating shaft (312).

4. The automatic welding and positioning device for door handles according to claim 3, characterized in that: The positioning and fixing component one (320) includes a bevel gear two (321) disposed in the worktable (100) for meshing with bevel gear one (313). The rear end of the bevel gear two (321) is fixedly mounted with a threaded rod one (322) for rotation. A clamping plate one (323) for back-and-forth movement is threadedly connected to the rod body of the threaded rod one (322).

5. The automatic welding and positioning device for door handles according to claim 4, characterized in that: The positioning and fixing component two (330) includes a bevel gear three (331) disposed in the worktable (100) for meshing with bevel gear one (313). The front end of the bevel gear three (331) is fixedly mounted with a threaded rod two (332) for rotation. The rod body of the threaded rod two (332) is threadedly connected with a clamping plate two (333) for moving back and forth.

6. The automatic welding and positioning device for door handles according to claim 1, characterized in that: The adjustment assembly (410) includes a rotating shaft (412) movably connected to the worktable (100). A motor (411) for driving the rotating shaft (412) to rotate is fixedly installed at the bottom end of the rotating shaft (412), and a gear (413) for driving the rotating assembly (420) to rotate is fixedly installed at the top end of the rotating shaft (412).

7. The automatic welding and positioning device for door handles according to claim 6, characterized in that: The rotating assembly (420) includes a gear ring (421) disposed in the worktable (100) for meshing with a gear (413), a ring (422) for driving the welding device (200) to rotate is fixedly mounted on the top end of the gear ring (421), and a fixing block (423) for supporting the welding device (200) is fixedly mounted on the top end of the ring (422).

8. The automatic welding and positioning device for door handles according to claim 7, characterized in that: The welding device (200) includes a support column (210) fixedly installed on the top of the fixed block (423), and a mechanical arm (220) for adjusting the angle is provided at the bottom end of the support column (210). A welding gun (230) for welding the door handle is provided at the bottom end of the mechanical arm (220).

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