A laser welding apparatus for 90 degree bent door handle

Abstract

The utility model relates to laser welding equipment technical field provides a kind of laser welding equipment for 90 degree bending door handle, including workbench, workbench is provided with multiple sets of positioning assembly, positioning assembly includes pedestal, rotating table, limit block and positioning driving part, pedestal is fixedly installed on workbench, rotating table is rotatably connected with pedestal by pivot, pedestal is provided with rotating driving part, rotating driving part is used to drive rotating table rotation;Compared with prior art, when needing to weld, user only needs to place square tube and end cover in limit block, clamping driving part and positioning driving part will automatically lock square tube and end cover, under the driving of power part, welding part can automatically weld the connecting part of end cover and square tube, under the action of rotating table, welding part can also weld the side of square tube and end cover through welding window, ensure that welding work can be quickly and accurately completed.

Description

Technical Field

[0001] This utility model relates to the field of laser welding equipment technology, and in particular to a laser welding equipment for 90-degree bent door handles. Background Technology

[0002] Door handles come in a variety of shapes and styles, with curved tube handles being particularly popular due to their simple and elegant design. Common door handle styles include square and round tubes. Both types are typically made by cutting and bending square or round tube blanks. After cutting and bending, end caps need to be welded to the ends of the blanks to prevent sharp edges from cutting workers. These end caps can also be fitted with threaded connections for easier subsequent connection operations.

[0003] There is a type of square tube door handle with a 90-degree bend (such as...) Figure 1 As shown, the handle is made by welding an end cap to a square tube. The end cap seals the end face of the square tube, and the end cap and the square tube are fixedly connected by laser welding. In order to improve the connection strength, workers need to weld multiple connection points between the end cap and the square tube. During welding, the square tube needs to be rotated frequently to align the parts to be welded with the laser welding equipment, which undoubtedly increases the processing time required for welding and affects the processing efficiency. Therefore, there is a need for a laser welding equipment that can quickly and accurately complete the welding of the end cap and the square tube to improve the welding efficiency and accuracy of the bent door handle. Utility Model Content

[0004] The purpose of this invention is to provide a laser welding device for 90-degree bent door handles, which aims to solve the problem of low efficiency when welding end caps and square tubes with existing laser welding equipment.

[0005] To achieve the above objectives, this utility model provides a laser welding device for 90-degree bent door handles, including a worktable. Multiple positioning components are arranged on the worktable, each including a base, a rotary table, a limiting bracket, and a positioning drive. The base is fixedly installed on the worktable, and the rotary table is rotatably connected to the base via a rotating shaft. A rotation drive is provided on the base to drive the rotary table to rotate. The positioning drive and the limiting bracket are both fixedly installed on the rotary table. The limiting bracket is provided with a clamping drive and a limiting block. The limiting block is used to restrict the square tube and the end cap, and the clamping drive is used to fix the square tube in the limiting block. The positioning drive is installed on the rotary table near the rotating shaft and is used to fix the end cap in the limiting block.

[0006] The workbench is equipped with a welding assembly, which includes a power unit and a welding unit. The power unit is used to drive the welding unit to move so that the welding unit can perform welding operations at different positions.

[0007] Furthermore, a tail end support is provided on the rotating platform. The tail end support is located at the end of the rotating platform away from the axis of rotation and is used to support the square tube.

[0008] Furthermore, the tail end support includes a support block and an auxiliary block. The support block is fixedly installed on the rotating platform, and the limiting block is connected to the support block by a locking screw. The support block is provided with an adjustment groove, in which the locking screw can slide. The auxiliary block is provided with an auxiliary groove, which is used to support the square tube.

[0009] Furthermore, the limiting block is provided with a square tube slot, an end cap slot, and a welding window. The square tube slot is located above the limiting block, and the end cap slot is located on the side of the limiting block, with the end cap slot located on the side closer to the positioning drive component. The welding window is located at the junction of the square tube slot and the end cap slot.

[0010] Furthermore, the positioning drive component includes a telescopic cylinder and a top block. The telescopic cylinder is fixedly installed on the rotating platform near the rotating shaft, and the top block is slidably connected to the rotating platform. The telescopic cylinder is used to push the top block closer to or away from the limit block.

[0011] Furthermore, a flux groove is provided on the top block, which is located at the upper corner of the top block near the limiting block.

[0012] Furthermore, two sets of positioning components are provided on the worktable, and the two sets of positioning components are horizontally distributed above the worktable.

[0013] Furthermore, the power unit includes a transverse power guide rail, a lifting power guide rail, and a longitudinal power guide rail. The transverse power guide rail is mounted on the worktable and is used to drive the lifting power guide rail to move laterally. The lifting power guide rail is used to drive the longitudinal power guide rail to move up and down, and the longitudinal power guide rail is used to drive the welding part to move longitudinally.

[0014] Furthermore, the clamping drive includes a clamping cylinder and a pressure plate that can rotate 90 degrees. The clamping cylinder is used to drive the pressure plate closer to or away from the square tube.

[0015] The laser welding equipment for 90-degree bent door handles provided by this utility model, compared with the prior art, allows the user to simply place the square tube and end cap in the limiting block when welding is required. The clamping drive and positioning drive will automatically lock the square tube and end cap. Driven by the power unit, the welding unit can automatically weld the connection between the end cap and the square tube. Under the action of the rotating table, the welding unit can also weld the side of the square tube and end cap through the welding window, ensuring that the welding work can be completed quickly and accurately. Attached Figure Description

[0016] Figure 1 This is a three-dimensional view of the square tube and end cap;

[0017] Figure 2 This is a perspective view of the present invention;

[0018] Figure 3 This is a perspective view of the positioning component in this utility model;

[0019] Figure 4 This is an exploded view of the positioning component in this utility model;

[0020] Figure 5 This is a working view of the positioning component in this utility model;

[0021] Figure 6 yes Figure 5 A magnified view of part A in the middle;

[0022] Figure 7 This is a perspective view of the positioning drive component in this utility model;

[0023] Figure 8 This is a three-dimensional view of the limiting block in this utility model;

[0024] Figure 9 This is a top view of the limiting block in this utility model;

[0025] Figure 10 This is a cross-sectional view of the limiting block in this utility model;

[0026] Figure 11 This is a perspective view of the tail end support portion in this utility model;

[0027] Figure 12 This is a perspective view of the welding assembly in this utility model.

[0028] Explanation of reference numerals in the attached figures:

[0029] in;

[0030] 01. Square tube; 02. End cap;

[0031] 1. Workbench;

[0032] 2. Positioning component; 20. Base; 21. Rotary table; 22. Rotation drive component; 23. Positioning drive component; 230. Telescopic cylinder; 231. Top block; 232. Welding flux groove; 24. Limiting seat; 25. Tail end support; 250. Support block; 251. Adjustment groove; 252. Locking screw; 253. Auxiliary block; 254. Auxiliary groove; 26. Limiting block; 260. Square tube slot; 261. End cap slot; 262. Welding window; 27. Clamping drive component; 270. Pressing cylinder; 271. Pressure plate;

[0033] 3. Welding components; 30. Transverse power guide rail; 31. Lifting power guide rail; 32. Longitudinal power guide rail; 33. Welding section. Detailed Implementation

[0034] The present invention will be described in detail below with reference to specific embodiments.

[0035] In this utility model, unless otherwise explicitly specified and limited, when terms such as "set in," "connected," or "linked" appear, these terms should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or a connection through one or more intermediate media. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances. The directional terms appearing in this utility model are for the purpose of better describing the characteristics of the features and the relationships between them. It should be understood that when the placement direction of this utility model changes, the direction of the characteristics of the features and the relationships between them also changes accordingly. Therefore, directional terms do not constitute an absolute limitation on the characteristics of the features and the relationships between them in space, but only a relative limitation.

[0036] like Figures 2 to 10 As shown, this utility model provides a laser welding device for a 90-degree bent door handle, including a worktable 1. Multiple positioning components 2 are arranged on the worktable 1. Each positioning component 2 includes a base 20, a rotating table 21, a limiting bracket 24, and a positioning drive component 23. The base 20 is fixedly installed on the worktable 1. The rotating table 21 is rotatably connected to the base 20 via a rotating shaft. A rotating drive component 22 is provided on the base 20 to drive the rotating table 21 to rotate. The positioning drive component 23 and the limiting bracket 24 are both fixedly installed on the rotating table 21. The limiting bracket 24 is provided with a clamping drive component 27 and a limiting block 26. The limiting block 26 is used to restrict the square tube 01 and the end cap 02, and the clamping drive component 27 is used to fix the square tube 01 in the limiting block 26. The positioning drive component 23 is installed on the rotating table 21 near the rotating shaft and is used to fix the end cap 02 in the limiting block 26.

[0037] The workbench 1 is equipped with a welding assembly 3, which includes a power unit and a welding unit 33. The power unit is used to drive the welding unit 33 to move so that the welding unit 33 can perform welding operations at different positions.

[0038] With the above design scheme, when welding is required, the operator only needs to place the square tube 01 and end cap 02 into the limiting block 26, and then the clamping drive 27 and positioning drive 23 will automatically lock the end cap 02 and square tube 01. The power unit will drive the welding unit 33 to move to complete the first welding work. When welding is required on the side, the rotation drive 22 will drive the rotary table 21 to rotate, so that the side of the square tube 01 and end cap 02 faces upward, which makes it convenient for the welding unit 33 to perform welding work at different positions.

[0039] In this embodiment, a tail end support 25 is provided on the rotary table 21. The tail end support 25 is located at the end of the rotary table 21 away from the rotating shaft and is used to support the square tube 01.

[0040] In this embodiment, the tail end support 25 includes a support block 250 and an auxiliary block 253. The support block 250 is fixedly installed on the rotary table 21. The auxiliary block 253 is connected to the support block 250 by a locking screw 252. The support block 250 is provided with an adjustment groove 251, and the locking screw 252 can slide in the adjustment groove 251. The auxiliary block 253 is provided with an auxiliary groove 254, which is used to support the square tube 01.

[0041] With the above design, the tail support 25 is used to place the other end of the square tube 01, so that the center of gravity of the square tube 01 is between the tail support 25 and the limiting seat 24, ensuring that the square tube 01 can be placed flat on the auxiliary block 253, avoiding the square tube 01 from being pried under the action of gravity and affecting the welding accuracy; the operator only needs to loosen the locking screw 252 to let the auxiliary block 253 slide on the support block 250. When the height of the auxiliary groove 254 is consistent with the height of the limiting block 26, the operator only needs to tighten the locking screw 252 to fix the auxiliary block 253, which facilitates the support operation of the square tube 01; when different models of square tube 01 need to be welded, the operator can also unscrew the auxiliary block 253 to replace it to adapt to different processing requirements.

[0042] In this embodiment, the limiting block 26 is provided with a square tube slot 260, an end cap slot 261 and a welding window 262. The square tube slot 260 is located on the upper part of the limiting block 26, the end cap slot 261 is located on the lower part of the limiting block 26, and the end cap slot 261 is located on the side close to the positioning drive member 23; the welding window 262 is located at the junction of the square tube slot 260 and the end cap slot 261.

[0043] With the above design, the square tube slot 260 fits into the square tube 01, and the end cap slot 261 fits into the end cap 02. The operator only needs to place the end cap 02 and the square tube 01 on the limiting block 26 according to their shape to keep the positions of the square tube 01 and the end cap 02 consistent. The welding window 262 can facilitate welding work on the side connection between the end cap 02 and the square tube 01. When welding work is required on the side, the rotary drive 22 can control the rotary table 21 to rotate 90 degrees clockwise or counterclockwise so that the welding window 262 faces upward, which facilitates the welding part 33 to perform welding work.

[0044] In this embodiment, the positioning drive component 23 includes a telescopic cylinder 230 and a top block 231. The telescopic cylinder 230 is fixedly installed on the rotary table 21 near the rotating shaft. The top block 231 is slidably connected to the rotary table 21. The telescopic cylinder 230 is used to push the top block 231 closer to or away from the limiting block 26.

[0045] With the above design scheme, when it is necessary to clamp the end cap 02, the operator only needs to place the end cap 02 into the end cap slot 261, the telescopic cylinder 230 pops out, and pushes the top block 231 into the end cap slot 261, so that the end cap 02 is clamped in the end cap slot 261, thus preventing the end cap 02 from loosening during the welding process and affecting the welding accuracy.

[0046] In this embodiment, a flux groove 232 is provided on the top block 231, and the flux groove 232 is located at the upper corner of the top block 231 near the limiting block 26.

[0047] Through the above design scheme, the setting of the flux groove 232 can facilitate the welding part 33 to weld the connection between the square tube 01 and the end cap 02. At the same time, the recessed flux groove 232 can also prevent the top block 231 from being accidentally welded during welding.

[0048] In this embodiment, two sets of positioning components 2 are provided on the workbench 1, and the two sets of positioning components 2 are horizontally distributed above the workbench 1.

[0049] Through the above design scheme, the two sets of positioning components 2 can perform welding work separately. When one set of positioning components 2 is performing welding work, the worker can take the opportunity to place the square tube 01 and end cap 02 to be welded into the other set of positioning components 2. After the first set of positioning components 2 completes the welding work, the welding unit 33, driven by the power unit, automatically moves above the second set of positioning components 2 to perform welding work. The worker can then take the opportunity to remove the welded square tube 01 and end cap 02 from the first set of positioning components 2 and place the square tube 01 and end cap 02 to be welded back on. The two sets of positioning components 2 alternately perform welding and placement work, which can effectively improve processing efficiency and improve welding efficiency while ensuring welding accuracy.

[0050] In this embodiment, the power unit includes a transverse power guide rail 30, a lifting power guide rail 31, and a longitudinal power guide rail 32. The transverse power guide rail 30 is mounted on the worktable 1. The transverse power guide rail 30 is used to drive the lifting power guide rail 31 to move laterally. The lifting power guide rail 31 is used to drive the longitudinal power guide rail 32 to move up and down. The longitudinal power guide rail 32 is used to drive the welding part 33 to move longitudinally.

[0051] With the above design scheme, the welding part 33 can move automatically as required and perform automatic calibration welding under the drive of the power unit, so as to ensure that the welding part 33 can automatically weld the connection between the square tube 01 and the end cap 02 as required.

[0052] In this embodiment, the welding part 33 is preferably a laser welding head.

[0053] In this embodiment, the clamping drive 27 includes a clamping cylinder 270 and a pressure plate 271 that can rotate 90 degrees. The clamping cylinder 270 is used to drive the pressure plate 271 to move closer to or away from the square tube 01. When the clamping cylinder 270 is raised, the pressure plate 271 rotates 90 degrees to be parallel to the square tube 01. When the clamping cylinder 270 is lowered, the pressure plate 271 rotates 90 degrees to be above the square tube 01, so that the square tube 01 is clamped in the square tube slot 260.

[0054] In this embodiment, the rotary drive 22 is preferably a stepper motor.

[0055] The laser welding equipment for 90-degree bent door handles provided by this utility model, compared with the prior art, allows the user to simply place the square tube 01 and end cap 02 in the limiting block 26 when welding is required. The clamping drive 27 and positioning drive 23 will automatically lock the square tube 01 and end cap 02. Under the drive of the power unit, the welding unit 33 can automatically weld the connection between the end cap 02 and the square tube 01. Under the action of the rotating table 21, the welding unit 33 can also weld the side of the square tube 01 and end cap 02 through the welding window 262, ensuring that the welding work can be completed quickly and accurately.

[0056] Where there is no conflict, the above embodiments and features can be combined with each other.

[0057] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit the scope of protection of this utility model. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the essence and scope of the technical solutions of this utility model.

Claims

1. A laser welding device for 90-degree bent door handles, comprising a worktable (1), characterized in that: The workbench (1) is provided with multiple positioning components (2). The positioning components (2) include a base (20), a rotary table (21), a limit holder (24), and a positioning drive (23). The base (20) is fixedly installed on the workbench (1). The rotary table (21) is rotatably connected to the base (20) through a rotating shaft. The base (20) is provided with a rotary drive (22), which is used to drive the rotary table (21) to rotate. The positioning drive (23) is connected to the limit holder (24). The card holders (24) are all fixedly installed on the rotary table (21). The card holders (24) are provided with clamping drive components (27) and limiting blocks (26). The limiting blocks (26) are used to limit the square tube (01) and the end cap (02). The clamping drive components (27) are used to fix the square tube (01) in the limiting blocks (26). The positioning drive components (23) are installed on the rotary table (21) near the rotating shaft. The positioning drive components (23) are used to fix the end cap (02) in the limiting blocks (26). The workbench (1) is also equipped with a welding assembly (3), which includes a power unit and a welding unit (33). The power unit is used to drive the welding unit (33) to move so that the welding unit (33) can perform welding operations in different positions.

2. The laser welding equipment for a 90-degree bent door handle according to claim 1, characterized in that: A tail end support (25) is provided on the rotary table (21). The tail end support (25) is located at the end of the rotary table (21) away from the rotating shaft. The tail end support (25) is used to support the square tube (01).

3. The laser welding equipment for a 90-degree bent door handle according to claim 2, characterized in that: The tail support (25) includes a support block (250) and an auxiliary block (253). The support block (250) is fixedly installed on the rotary table (21). The limiting block (26) is connected to the support block (250) by a locking screw (252). The support block (250) is provided with an adjustment groove (251), and the locking screw (252) can slide in the adjustment groove (251). The auxiliary block (253) is provided with an auxiliary groove (254), which is used to support the square tube (01).

4. The laser welding equipment for a 90-degree bent door handle according to claim 1, characterized in that: The limiting block (26) is provided with a square tube slot (260), an end cap slot (261) and a welding window (262). The square tube slot (260) is located above the limiting block (26), and the end cap slot (261) is located on the side of the limiting block (26), and the end cap slot (261) is located on the side close to the positioning drive (23). The welding window (262) is located at the junction of the square tube slot (260) and the end cap slot (261).

5. The laser welding equipment for a 90-degree bent door handle according to claim 1, characterized in that: The positioning drive component (23) includes a telescopic cylinder (230) and a top block (231). The telescopic cylinder (230) is fixedly installed on the rotary table (21) near the rotating shaft. The top block (231) is slidably connected to the rotary table (21). The telescopic cylinder (230) is used to push the top block (231) closer to or away from the limit block (26).

6. The laser welding equipment for a 90-degree bent door handle according to claim 5, characterized in that: A flux groove (232) is provided on the top block (231), and the flux groove (232) is located at the upper corner of the top block (231) near the limit block (26).

7. The laser welding equipment for a 90-degree bent door handle according to claim 1, characterized in that: Two sets of positioning components (2) are provided on the workbench (1), and the two sets of positioning components (2) are horizontally distributed above the workbench (1).

8. The laser welding equipment for a 90-degree bent door handle according to claim 1, characterized in that: The power unit includes a transverse power guide (30), a lifting power guide (31), and a longitudinal power guide (32). The transverse power guide (30) is mounted on the worktable (1). The transverse power guide (30) is used to drive the lifting power guide (31) to move laterally. The lifting power guide (31) is used to drive the longitudinal power guide (32) to move up and down. The longitudinal power guide (32) is used to drive the welding part (33) to move longitudinally.

9. The laser welding equipment for a 90-degree bent door handle according to claim 1, characterized in that: The clamping drive (27) includes a clamping cylinder (270) and a pressure plate (271) that can rotate 90 degrees. The clamping cylinder (270) is used to drive the pressure plate (271) to move closer to or away from the square tube (01).

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