Automobile steel hub welding equipment

Abstract

The utility model relates to welding equipment, and discloses automobile steel hub welding equipment which comprises a workbench, fixing mechanisms, a supporting table and a welding mechanism, the fixing mechanisms comprise a rim fixing mechanism and a spoke fixing mechanism, the supporting table is rotationally arranged on the workbench, the fixing mechanisms are arranged at the two ends of the supporting table, and the welding mechanism is arranged above one fixing mechanism; the rim fixing mechanism comprises a plurality of positioning columns, sliding grooves are correspondingly formed in the supporting table, and a driving mechanism is arranged in the supporting table; the spoke fixing mechanism comprises a plurality of positioning blocks, the positioning blocks form a rod-shaped structure with a conical top end, a groove is formed in the supporting table, the positioning blocks can move in an opening and closing mode in the radius direction of the groove, and a first spring is arranged in the groove and corresponds to the positioning blocks. According to the utility model, double stations are adopted, so that hubs are convenient to take and place, the downtime of a welding machine is greatly shortened, and the working efficiency is improved; and a spoke and a rim can be conveniently and stably fixed, and the gear hub machining device can be suitable for hub machining of different gears.

Description

Technical Field

[0001] The utility model relates to a welding device, in particular to a welding device for automobile steel wheels. Background Art

[0002] The wheel hub is an important component on a vehicle that bears the automobile tire. It is a cylindrical metal component with an inner profile that supports the tire and is centered on the axle. It is also called a rim, steel rim, wheel, or tire bell. In the prior art, automobile wheel hubs are generally divided into aluminum alloy wheels and steel wheels. Aluminum alloy wheels are lighter, have good heat dissipation, and high aesthetics, and are favored by the market. However, steel wheels have low production and maintenance costs, are not easily deformed, have strong impact resistance, and good corrosion resistance, so steel wheels are still selected for heavy-duty vehicles.

[0003] The production of steel wheels mainly includes the press-fitting of the rim and the spoke and the welding between the two. The traditional welding of the rim and the spoke is to place the rim and the spoke on the ground or the workbench for manual welding. It is not convenient to rotate the wheel hub, the work efficiency is low, and the welding technology requirements for the staff are high. The utility model patent with the publication number of CN214921583U discloses a welding device for automobile wheel hubs, which includes a base and a welding mechanism. A turntable is arranged above the base, a rotating shaft is vertically installed at the center of the base, the rotating shaft is fixedly connected with the turntable, a placing plate is fixed at the top of the rotating shaft, the placing plate includes a chassis and a top plate, the top plate is fixed above the chassis, the welding mechanism includes a bracket and a welding gun, a connecting rod is horizontally fixed at the top of the bracket, and the welding gun is slidably installed on the connecting rod. It solves the problem that the rotation of the automobile wheel hub is not convenient during welding, resulting in very low welding efficiency. However, it has only one working station. Before and after welding, it is necessary to pick up and place the rim and the spoke, so the welding work needs to be paused, and the work efficiency is still not ideal. And the spoke is positioned by a placing plate of a certain size, then the rim is sleeved outside the spoke, and finally welding is carried out. Therefore, it can only produce wheel hubs of a certain size and is not firmly fixed. Summary of the Utility Model

[0004] I. Technical Problems to be Solved

[0005] The technical problem to be solved by the utility model is to overcome the defects of low working efficiency, unstable fixing of the wheel hub, and small application range of the welding device in the prior art, and provide a welding device for automobile steel wheels.

[0006] II. Technical Solutions

[0007] To solve the above technical problems, the technical solution provided by the present utility model is as follows: An automobile steel wheel hub welding device, comprising a workbench and a fixing mechanism. The fixing mechanism includes a rim fixing mechanism and a spoke fixing mechanism that are concentrically arranged, and further includes a support table and a welding mechanism. The support table is rotatably arranged on the workbench, and fixing mechanisms are provided at both ends thereof. The welding mechanism is arranged on the workbench and corresponds to one of the fixing mechanisms. The rim fixing mechanism includes a plurality of positioning columns. Corresponding to the positioning columns on the support table, there are sliding grooves. A driving mechanism for driving the plurality of positioning columns to slide synchronously is arranged in the support table, so that the positioning columns slide open and close along the corresponding sliding grooves. The spoke fixing mechanism includes a plurality of positioning blocks. The plurality of positioning blocks form a rod-shaped structure with a conical top. There is a groove on the support table. The bottom ends of the positioning blocks are located in the groove, and the plurality of positioning blocks can move open and close along the radial direction of the groove. A first spring is arranged inside the groove, corresponding to the positioning blocks, for driving the positioning blocks to reset.

[0008] Further, the driving mechanism includes a power component, a central gear rotatably arranged in the support table, and a plurality of driven gears arranged around the central gear. The driven gears correspond to the positioning columns, and the plurality of driven gears are all meshed with the central gear. The power component is connected to the rotating shaft of the central gear, and the bottom of the positioning column is fixed to the edge of the driven gear.

[0009] Further, the power component includes a worm wheel coaxially arranged with the central gear and a worm meshed with the worm wheel. The worm is rotatably arranged in the support table, and one end extends to the outside of the support table.

[0010] Further, the power component includes a rack slidably arranged in the support table, a power gear meshed with the rack, and a second spring for driving the rack to reset. There is a cavity in the support table. One end of the rack and the second spring are located in the cavity. The two ends of the second spring are respectively fixed to the rack and the end of the cavity. The power gear is coaxial with the central gear.

[0011] Further, limiting rods are arranged on the outer sides of the positioning blocks, and corresponding limiting grooves are arranged on the inner wall of the groove. The first spring is sleeved on the limiting rods.

[0012] Further, the welding mechanism includes an L-shaped support frame, a rotating rod, an electric telescopic rod, and a welding head. The vertical part of the L-shaped support frame is fixedly connected to the side wall of the workbench. A rotating rod is rotatably arranged below the horizontal part. The electric telescopic rod is slidably arranged on the rotating rod, and the welding head is fixed to the bottom end of the electric telescopic rod.

[0013] III. Beneficial Effects

[0014] The advantages of the present utility model compared with the prior art are as follows:

[0015] 1. The rotating support plate of the present utility model is provided with two fixing mechanisms. While the welding mechanism welds the hub below it, the next set of rim and spoke can be fixed on the other fixing mechanism. After welding, the support platform is directly rotated to turn out the welded hub, greatly shortening the time for taking and placing the hub and improving work efficiency.

[0016] 2. The present utility model fixes the periphery of the rim through positioning columns and fixes the inner ring of the spoke through positioning blocks, so as to make the fixation stable and avoid displacement during welding, resulting in welding failure. Description of the Drawings

[0017] Figure 1 It is a schematic structural diagram of a welding device for an automobile steel hub of the present utility model.

[0018] Figure 2 It is a partial exploded view of a welding device for an automobile steel hub of the present utility model.

[0019] Figure 3 It is a schematic structural diagram of the rim fixing mechanism in the second embodiment of the present utility model.

[0020] Figure 4 It is a schematic structural diagram of the rim fixing mechanism in the third embodiment of the present utility model.

[0021] Figure 5 It is a schematic structural diagram of the welding mechanism of a welding device for an automobile steel hub of the present utility model.

[0022] As shown in the figure: 1. Workbench; 2. Rim fixing mechanism; 3. Spoke fixing mechanism; 4. Welding mechanism; 5. Positioning column; 6. Chute; 7. Positioning block; 8. Groove; 9. Spring I; 10. Power component; 11. Central gear; 12. Driven gear; 13. Worm gear; 14. Worm; 15. Rack; 16. Power gear; 17. Spring II; 18. Cavity; 19. Support platform; 20. Limiting rod; 21. Limiting groove; 22. L-shaped support frame; 23. Rotating rod; 24. Electric telescopic rod; 25. Welding head. Detailed Embodiment

[0023] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments; based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0024] Embodiment 1, as shown in the attached Figure 1 and the attached Figure 2 figure.

[0025] An automobile steel wheel hub welding device includes a workbench 1 and a fixing mechanism. The fixing mechanism includes a rim fixing mechanism 2 and a spoke fixing mechanism 3 that are concentrically arranged. It also includes a support platform 19 and a welding mechanism 4. The support platform 19 is rotatably arranged on the workbench 1, and fixing mechanisms are provided at both ends thereof. The welding mechanism 4 is arranged on the workbench 1 and corresponds to one of the fixing mechanisms. The rim fixing mechanism 2 includes a plurality of positioning columns 5. Corresponding to the positioning columns 5 on the support platform 19, there are sliding grooves 6. A driving mechanism for driving the plurality of positioning columns 5 to slide synchronously is arranged inside the support platform 19, so that the positioning columns 5 slide open and close along the corresponding sliding grooves 6. The spoke fixing mechanism 3 includes a plurality of positioning blocks 7. The plurality of positioning blocks 7 form a rod-shaped structure with a conical top. A groove 8 is provided on the support platform 19. The bottom ends of the positioning blocks 7 are located inside the groove 8, and the plurality of positioning blocks 7 can move open and close along the radial direction of the groove 8. A first spring 9 is arranged inside the groove 8, corresponding to the positioning blocks 7, and is used to drive the positioning blocks 7 to reset.

[0026] The driving mechanism includes a power component 10, a central gear 11 rotatably arranged inside the support platform 19, and a plurality of driven gears 12 arranged around the central gear 11. The driven gears 12 correspond to the positioning columns 5, and the plurality of driven gears 12 are all meshed with the central gear 11. The power component 10 is connected to the rotating shaft of the central gear 11, and the bottom of the positioning column 5 is fixed to the edge of the driven gear 12.

[0027] It should be noted that a first driving motor for driving the support platform 19 to rotate is provided on the workbench 1; in the initial state of the first spring 9, the plurality of positioning blocks 7 are separated from each other.

[0028] With the above structure, first, the through hole in the middle of the spoke is sleeved on the tops of the plurality of positioning blocks 7 and pressed downward. At this time, the first spring 9 stretches and the plurality of positioning blocks 7 approach each other, so that the spoke is sleeved outside the plurality of positioning blocks. Under the action of the first spring 9, the positioning blocks 7 always have a tendency to move away from each other, thereby clamping the spoke. Then, the driving mechanism drives the plurality of positioning columns 5 on the rim fixing mechanism 2 to move away from each other, sleeving the rim outside the spoke, and through the driving mechanism, the plurality of positioning columns 5 approach each other to clamp the rim for fixation. The support platform 19 is rotated to rotate the fixed wheel hub to the lower part of the welding mechanism 4 for welding. During the welding process, the raw material of the lower moving wheel hub is fixed on the other fixing mechanism, waiting for the welding to be completed, and then the support platform 19 is rotated again.

[0029] In the driving mechanism, the power component 10 drives the central gear 11 to rotate, which can simultaneously drive the driven gears 12 to rotate, thereby driving the positioning columns 5 to slide along the sliding grooves 6, so as to approach or separate from each other.

[0030] Embodiment 2, as shown in the appendix Figure 2 and the appendix Figure 3 as shown.

[0031] On the basis of the first embodiment, the power component 10 includes a worm wheel 13 coaxially arranged with the central gear 11 and a worm 14 meshing with the worm wheel 13. The worm 14 is rotatably arranged in the support table 19, and one end extends outside the support table 19.

[0032] It should be noted that the worm wheel 13 and the worm 14 meet the self-locking condition of the worm and worm wheel cooperation, so as to avoid accidental contact and movement after the rim is clamped.

[0033] With the above structure, by rotating the worm 14, the worm wheel 13 is driven to rotate, the central gear 11 is driven to rotate, the driven gear 12 is driven to rotate, and then the positioning columns 5 can be driven to move away from each other. Rotating the worm 14 in the reverse direction can make the positioning columns 5 move closer to the middle to clamp the rim.

[0034] Embodiment Three, as shown in the attached Figure 2 and attached Figure 4 figure.

[0035] On the basis of the first embodiment, the power component 10 includes a rack 15 slidably arranged in the support table 19, a power gear 16 meshing with the rack 15, and a second spring 17 for driving the rack 15 to reset. A cavity 18 is provided in the support table 19. One end of the rack 15 and the second spring 17 are located in the cavity 18. Both ends of the second spring 17 are fixedly connected to the rack 15 and the end of the cavity 18 respectively. The power gear 16 is coaxial with the central gear 11.

[0036] It should be noted that when the second spring 17 is in a free state, the part of the rack 15 extending outside the support table 19 is the longest, and the distance between the multiple positioning columns 5 is the smallest.

[0037] By pushing the rack 15 to slide inside the support table 19, the central gear 11 is driven to rotate, the driven gear 12 is driven to rotate, and then the positioning columns 5 can be driven to move away from each other. After releasing the rack 15, the second spring 17 drives the rack 15 to reset, so that the positioning columns 5 have a force to move closer to the middle, thereby clamping the rim.

[0038] Embodiment Four, as shown in the attached Figure 2 figure.

[0039] On the basis of the second or third embodiment, limiting rods 20 are arranged on the outer sides of the positioning blocks 7, limiting grooves 21 are correspondingly arranged on the inner wall of the groove 8, and the first spring 9 is sleeved on the limiting rods 20.

[0040] With the above structure, the limiting rods 20 and the limiting grooves 21 play a role in restricting the movement path of the positioning blocks 7, so that they can only move along the radial direction of the groove 8, and the multiple positioning blocks 7 open and close.

[0041] Embodiment Five, as shown in the attached Figure 5 figure.

[0042] On the basis of Embodiment 4, the welding mechanism 4 includes an L-shaped support frame 22, a rotating rod 23, an electric telescopic rod 24, and a welding head 25. The vertical part of the L-shaped support frame 22 is fixedly connected to the side wall of the workbench 1, and the rotating rod 23 is rotatably arranged below the horizontal part. The electric telescopic rod 24 is slidably arranged on the rotating rod 23, and the welding head 25 is fixed to the bottom end of the electric telescopic rod 24.

[0043] It should be noted that a sliding sleeve is arranged on the rotating rod 23 and slides along its length direction. The top end of the electric telescopic rod 24 is fixedly connected to the sliding sleeve. A threaded hole is arranged at the top of the sliding sleeve, and a locking bolt is internally fitted. By tightening the locking bolt to make it press against the rotating rod 23, the electric telescopic rod 24 and the welding head 25 can be fixed, so that the position of the welding head can be adjusted according to the wheels of different sizes; a second driving motor is arranged at the top end of the horizontal part of the L-shaped support frame 22 for driving the rotating rod 23 to rotate.

[0044] Through the above structure, before welding, first adjust the position of the welding head 25 according to the size of the wheel to be processed. After the fixed rim and spoke rotate to the lower part of the welding mechanism 4, the electric telescopic rod 24 drives the welding head 25 to move downward, and at the same time, the second driving motor drives the rotating rod 23 and the electric telescopic rod 24 to rotate, so that the welding head 25 rotates at a constant speed for welding.

[0045] It should be noted that the supporting power supply and control switch of the driving motor and the electric telescopic rod mentioned in this embodiment can also be provided by the manufacturer. The circuits, electronic components, and modules involved are all prior arts, which can be fully realized by those skilled in the art and will not be elaborated here.

[0046] The specific usage method is as follows: Before welding, first adjust the position of the welding head 25 according to the size of the wheel to be processed. Set the through hole in the middle of the spoke on the tops of multiple positioning blocks 7, press downward to make it contact the support table 19, and then drive the positioning columns 5 to move away from each other through the driving mechanism. Place the rim on the support table 19, and then make the positioning columns 5 move closer to clamp the rim. Drive the support table 19 to rotate through the first driving motor to rotate the fixed wheel to the welding position. The electric telescopic rod 24 drives the welding head to move downward, and the second driving motor drives the welding head 25 to rotate at a constant speed for welding. At the same time, fix the spoke and the rim on another set of fixing mechanisms. After welding is completed, after the electric telescopic rod 24 drives the welding head 25 to lift, rotate the support table 19 again, and then perform the next welding.

[0047] It should be noted that in this text, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, such that a process, method, article or device comprising a series of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article or device.

[0048] Although the embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

[0049] The above description of the present invention and its embodiments is not restrictive. What is shown in the drawings is only one of the embodiments of the present invention, and the actual structure is not limited thereto. In general, if those of ordinary skill in the art are inspired by it and, without departing from the gist of the present invention, design similar structural modes and embodiments to this technical solution without creative efforts, they shall fall within the protection scope of the present invention.

Claims

1. An automobile steel wheel hub welding device, comprising a workbench (1) and a fixing mechanism, wherein the fixing mechanism comprises a rim fixing mechanism (2) and a spoke fixing mechanism (3) which are arranged concentrically, and wherein: It also includes a support platform (19) and a welding mechanism (4), wherein the support platform (19) is rotatably arranged on the workbench (1), and both ends of the support platform (19) are provided with fixing mechanisms, and the welding mechanism (4) is arranged on the workbench (1) and corresponds to one of the fixing mechanisms; The wheel rim fixing mechanism (2) comprises a plurality of positioning columns (5), a slide groove (6) is provided on the support platform (19) corresponding to the positioning columns (5), and a driving mechanism for driving the plurality of positioning columns (5) to slide synchronously is provided in the support platform (19); The spoke fixing mechanism (3) comprises a plurality of positioning blocks (7), the plurality of positioning blocks (7) forming a rod-shaped structure with a conical top end, a groove (8) being provided on the support platform (19), the bottom end of the positioning block (7) being located in the groove (8), and the plurality of positioning blocks (7) being movable in opening and closing along the radial direction of the groove (8), a spring (9) being provided inside the groove (8), and the spring (9) corresponding to the positioning block (7).

2. The automobile steel wheel hub welding equipment according to claim 1, characterized in that: The driving mechanism comprises a power component (10), a central gear (11) rotatably arranged in a support platform (19), and a plurality of driven gears (12) arranged around the central gear (11); the driven gears (12) correspond to the positioning columns (5), and the plurality of driven gears (12) are all meshed with the central gear (11); the power component (10) is connected to the rotating shaft of the central gear (11), and the bottom of the positioning column (5) is fixed to the edge of the driven gear (12).

3. The automobile steel wheel hub welding equipment according to claim 2, characterized in that: The power component (10) comprises a worm wheel (13) coaxially arranged with the central gear (11) and a worm (14) meshing with the worm wheel (13); the worm (14) is rotatably arranged in a support platform (19) and one end of the worm (14) extends to the outside of the support platform (19).

4. The automobile steel wheel hub welding equipment according to claim 2, characterized in that: The power component (10) comprises a rack (15) slidably arranged in a support platform (19), a power gear (16) meshing with the rack (15) and a second spring (17) for driving the rack (15) to return to its original position. A cavity (18) is provided in the support platform (19). One end of the rack (15) and the second spring (17) are located in the cavity (18). Two ends of the second spring (17) are respectively fixedly connected to the rack (15) and the end of the cavity (18). The power gear (16) is coaxial with the central gear (11).

5. The automobile steel wheel hub welding equipment according to claim 1, characterized in that: The outer side of the positioning block (7) is provided with a limiting rod (20), the inner wall of the groove (8) is correspondingly provided with a limiting groove (21), and the spring (9) is sleeved on the limiting rod (20).

6. The automobile steel wheel hub welding equipment according to claim 1, characterized in that: The welding mechanism (4) comprises an L-shaped support frame (22), a rotating rod (23), an electric telescopic rod (24) and a welding head (25); the vertical portion of the L-shaped support frame (22) is fixedly connected to the side wall of the workbench (1); a rotating rod (23) is rotatably arranged below the horizontal portion; the electric telescopic rod (24) is slidably arranged on the rotating rod (23); and the welding head (25) is fixed to the bottom end of the electric telescopic rod (24).

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