Electric vehicle hub welding tool and welding method

Abstract

The invention provides an electric vehicle hub welding tool and a welding method.The electric vehicle hub welding tool comprises a base, a displacement adjusting assembly and two clamping mechanisms, and the displacement adjusting assembly comprises a fixing frame arranged on the base, a mounting table, a guide rail rod arranged on the fixing frame and a two-way screw rod; the two mounting tables are connected to the two ends of the two-way screw in a threaded and sleeved mode respectively, the guide rail rod penetrates through the mounting tables, and under rotation driving of the two-way screw, the two mounting tables can synchronously translate along the guide rail rod in the face-to-face or back-to-back mode; the clamping assembly comprises a bearing frame, an overturning disc arranged on the bearing frame and a polyhedral clamping assembly, the polyhedral clamping assembly is fixed to the overturning disc through a supporting base and can overturn along with the overturning disc, and the polyhedral clamping assembly is provided with multiple sets of clamping bodies capable of clamping the hub. The hub welding fixture can adapt to hubs of various models, rapid positioning and fixing can be ensured, the welding efficiency and the welding quality are improved, and the consistency and the stability of the welding quality are ensured.

Description

Technical Field

[0001] The present invention belongs to the technical field of wheel welding devices for automobile parts, and particularly relates to a welding processing tooling for electric vehicle wheels and a wheel welding method. Background Art

[0002] The wheel is composed of multiple components, such as spokes and rims, and these components need to be fixed together by welding. If the position is not fixed stably during wheel processing, problems such as insecure welding and uneven weld seams may occur, thus affecting the overall strength and safety of the wheel. Existing traditional wheel welding positioning toolings usually use a workbench and a hydraulic rod device for fixation, with poor adaptability, and problems of frequent chuck replacement and turning over, resulting in poor welding processing efficiency and inability to guarantee the stability and consistency of welding quality.

[0003] Therefore, it is necessary to develop an efficient wheel welding tooling to improve welding stability and efficiency. Summary of the Invention

[0004] Object of the Invention: To solve the above technical problems, the present invention provides a welding processing tooling for electric vehicle wheels and a welding method. The tooling of the present invention can adapt to various types of wheels, can ensure quick positioning and fixation, improve welding efficiency and welding quality, and ensure the consistency and stability of welding quality.

[0005] Technical Solution: To achieve the above object of the invention, the present invention adopts the following technical solution: A welding processing tooling for electric vehicle wheels, characterized in that: it includes a base, a displacement adjustment component, and two groups of clamping mechanisms. The displacement adjustment component includes a fixed frame arranged on the base, two mounting platforms, a guide rail rod and a bidirectional screw arranged on the fixed frame. The two mounting platforms are respectively threadedly sleeved at both ends of the bidirectional screw, and the guide rail rod penetrates through the mounting platforms. Driven by the rotation of the bidirectional screw, the two mounting platforms can translate synchronously towards or away from each other along the guide rail rod. The two groups of clamping mechanisms are respectively arranged on the two mounting platforms. The clamping component includes a carrier frame, a turning disk arranged on the carrier frame, and a polyhedron clamping component. The polyhedron clamping component is fixed on the turning disk through a support seat and can turn with the turning disk. The polyhedron clamping component is provided with multiple groups of clamping bodies capable of clamping the wheel.

[0006] Preferably, the polyhedron clamping component includes a rotating base and a number of component support bodies respectively arranged on the outer edge of the rotating base.

[0007] Preferably, the split support includes a split support body, an insertion block and a clamping end head located at the tail end and the front end of the split support body respectively. The clamping end head includes an outer hub clamping seat and an inner hub clamping seat, and the shapes of the outer hub clamping seat and the inner hub clamping seat respectively have arcs matching the outer ring and the inner ring of the hub.

[0008] Preferably, an I-shaped embedding groove is provided on the outer circumferential surface of the rotating base, and a locking assembly is provided in the embedding groove. The locking assembly includes a locking strip. The middle of the locking strip is movably arranged in the embedding groove through a shaft pin. A lock head is provided at the front end of the locking strip, and a compression spring is provided at the tail end. The insertion block of the split support body matches the I-shaped shape of the embedding groove, and a locking groove is also provided on the insertion block. When the insertion block is inserted into the embedding groove, the lock head at the front end of the locking strip can be jacked up. When inserted further, the lock head at the front end of the locking strip falls into the locking groove on the insertion block to fix and lock the split support.

[0009] Preferably, the flipping disc is driven by a first worm and worm gear assembly. The first worm and worm gear assembly includes a first worm gear connected to the flipping disc and a first worm provided on the bearing frame. The first worm and the first worm gear form a worm and worm gear assembly.

[0010] Preferably, the support seat includes a support frame and a vertical shaft provided on the support frame. The vertical shaft is provided at the center of the rotating base.

[0011] Preferably, a second worm and worm gear mechanism is further provided on the flipping disc. The second worm and worm gear mechanism includes a second worm gear arranged concentrically with the vertical shaft and a second worm provided on the flipping disc. The second worm drives the second worm gear to rotate.

[0012] The present invention also provides an electric vehicle hub welding processing method based on the above-mentioned tooling, which is characterized by including the following steps: S1. According to the hub model, switch the rotating base to the appropriate hub clamping end head through the second worm and worm gear mechanism. S2. Place the hub at the target position, and use the displacement mechanism to drive the adjustment table, the bearing frame, the flipping disc), the rotating base and the hub clamping end head to move, and the two groups of hub clamping end heads clamp and position the hub. S3. Use the welding equipment to perform welding operations on the clamped and positioned hub. S4. When it is necessary to process the other side of the hub, drive the flipping disc, the rotating base, the hub clamping end head and the hub to rotate through the flipping mechanism to realize flipping and welding processing of the hub. S5. After the welding processing is completed, reset the device and remove the processed hub.

[0013] Advantageous effects: Compared with the prior art, the tooling of the present invention can be applied to the clamping and positioning of various models of wheels, with good clamping and positioning effects, and is convenient for quickly switching different internal and external clamping methods, ensuring good welding quality. At the same time, through the design of the flipping disk, the carrier and the flipping mechanism, the angle of the wheel can be easily adjusted or flipped after clamping and positioning, realizing multi-angle and automatic flipping processing, improving the flexibility of the tooling, and simplifying the welding operation process of the wheel. Finally, through the design of the shifting mechanism, the installation table and the carrier, the tooling is convenient for quickly clamping and positioning the wheel or releasing the locked state, ensuring convenient operation of the tooling and meeting the usage requirements. Brief Description of the Drawings

[0014] Figure 1 is a schematic structural diagram of the electric vehicle wheel welding and processing tooling of the present invention; Figure 2 is Figure 1 a perspective view of; Figure 3 is a schematic structural diagram of the carrier of the present invention; Figure 4 is Figure 3 a side view of; Figure 5 is a schematic structural diagram of the connection relationship between the flipping disk and the polyhedron clamping assembly of the present invention; Figure 6 is a schematic structural diagram of the polyhedron clamping assembly of the present invention; Figure 7 is a schematic structural diagram of the outer wheel clamping seat of the present invention; Figure 8 is a schematic structural diagram of the inner wheel clamping seat of the present invention; Figure 9 is a schematic structural diagram of the rotating base of the present invention; Figure 10 is a schematic structural diagram of the embedding groove of the present invention.

[0015] Among them, 1. Tooling base; 11. Welding equipment; 12. Robot arm; 13. Welding head; 2. Installation table; 3. Displacement adjustment component; 31. Guide rail rod; 32. Bidirectional screw; 33. First motor; 4. Bearing frame; 5. Rotating disk; 51. Horizontal axis; 52. Support base; 521. Reinforcing base; 6. Rotating mechanism; 61. First worm; 62. First worm gear; 63. Second motor; 7. Rotating base; 71. Vertical axis; 72. Split support; 721. Insert block; 722. Locking groove; 73. Hub clamping end; 731. Outer hub clamping seat; 732. Inner hub clamping seat; 74. Embedding groove; 75. Control groove; 8. Second worm and worm gear mechanism; 81. Second worm; 82. Second worm gear; 83. Third motor; 9. Locking component; 91. Locking strip; 92. Lock head; 93. Spring; 94. Pin shaft. Detailed implementation mode

[0016] The following further clarifies the present invention in conjunction with the accompanying drawings and specific embodiments. It should be understood that these embodiments are only used to illustrate the present invention and not to limit the scope of the present invention. After reading the present invention, those skilled in the art's various equivalent modifications of the present invention all fall within the scope defined by the appended claims of this application.

[0017] As Figure 1-10 shown, the electric vehicle hub welding and processing tooling of the present invention mainly includes a base, a displacement adjustment component and two sets of clamping mechanisms, among which: The displacement adjustment component includes a fixed frame arranged on the base, two installation tables, a guide rail rod and a bidirectional screw arranged on the fixed frame. The two installation tables are respectively threadedly sleeved at both ends of the bidirectional screw, and the guide rail rod penetrates through the installation tables. Driven by the rotation of the bidirectional screw, the two installation tables can move synchronously towards or away from each other along the guide rail rod; The two sets of clamping mechanisms are respectively arranged on the two installation tables. The clamping component includes a bearing frame, a rotating disk arranged on the bearing frame and a polyhedron clamping component. The polyhedron clamping component is fixed on the rotating disk through a support base and can flip with the rotating disk. The polyhedron clamping component is provided with multiple groups of clamping bodies capable of clamping the hub.

[0018] The polyhedron clamping assembly includes a rotating base and a plurality of split support bodies arranged on the outer edge of the rotating base. Among them, an I-shaped embedding groove is provided on the outer circumferential surface of the rotating base, and a locking assembly is provided in the embedding groove. The locking assembly includes a locking strip. The middle of the locking strip is movably arranged in the embedding groove through a shaft pin. A lock head is provided at the front end of the locking strip, and a compression spring is provided at the tail end. The insertion block of the split support body matches the I-shaped shape of the embedding groove, and a locking groove is also provided on the insertion block. When the insertion block is inserted into the embedding groove, the lock head at the front end of the locking strip can be lifted. When further inserted, the lock head at the front end of the locking strip falls into the locking groove on the insertion block to fix and lock the split support.

[0019] The split support includes a split support body, an insertion block and a clamping end head respectively located at the tail end and the front end of the split support body. The clamping end head includes a hub outer clamping seat and a hub inner clamping seat. The shapes of the hub outer clamping seat and the hub inner clamping seat respectively have arcs matching the outer ring and the inner ring of the hub.

[0020] When welding the hub, the specific steps are as follows: Step S1, according to the hub model, switch the rotating base to the appropriate hub clamping end head through the second worm and gear mechanism; Step S2, place the hub at the target position, and use the displacement adjustment assembly to drive the installation table, the bearing frame, the turning disk, the polyhedron clamping base and the hub clamping end head to move, and the two hub clamping end heads clamp and position the hub; Step S3, use the welding equipment to perform welding operations on the clamped and positioned hub; Step S4, when it is necessary to process the other side of the hub, drive the turning disk, the polyhedron clamping base, the hub clamping end head and the hub to rotate through the turning mechanism to realize turning and welding processing of the hub; Step S5, after the welding processing is completed, reset the device and remove the processed hub.

[0021] In summary, for the processing tooling for welding electric vehicle hubs, through the design of the polyhedron clamping base, the split support, the hub clamping end head and the second worm and gear mechanism, the tooling can be applied to the clamping and positioning of various models of hubs, with good clamping and positioning effects, and it is convenient and fast to switch different internal and external clamping methods, ensuring good welding quality. At the same time, through the design of the turning disk, the bearing frame and the turning mechanism, it is convenient to adjust the angle or turn the hub after clamping and positioning, realizing multi-angle and automatic turning processing, improving the flexibility of the tooling, simplifying the hub welding operation process. Finally, through the design of the displacement adjustment assembly, the installation table and the bearing frame, the tooling is convenient for quickly clamping and positioning the hub or releasing the locked state, ensuring convenient operation of the tooling and meeting the use requirements.

[0022] The locking assembly is structurally compact and easy to operate, facilitating the quick locking of the position after docking the split support and the polyhedron clamping base. When the locking assembly needs to be replaced, when the split support and the hub clamping end are installed on the side of the polyhedron clamping base as a whole, first press the rotating plate so that the rotating plate drives the lock head 92 to tilt up. The rotating plate simultaneously compresses the spring. At this time, align the insertion block and insert it into the internal embedding groove. After complete insertion, release the rotating plate. The spring resets and pushes the rotating plate to move, so that the rotating plate drives the lock head to be clamped in the locking groove, realizing the locking of the position of the insertion block, the split support and the hub clamping end. When the split support and the hub clamping end need to be replaced subsequently, the disassembly process of the split support and the hub clamping end is the reverse of the above installation and locking process.

[0023] Compared with traditional tooling, the electric vehicle hub welding and processing tooling of the present invention has the following advantages: 1. Through the flipping mechanism, it is convenient to adjust the angle or flip the hub after clamping and positioning, realizing multi-angle and automatic flipping processing, improving the flexibility of the tooling, and simplifying the hub welding operation process. And through the displacement adjustment component arranged on the installation table, the tooling is convenient for quickly clamping and positioning the hub or releasing the locked state, ensuring that the tooling is easy to operate and meets the use requirements.

[0024] 2. Adopting hub clamping ends of multiple specifications can adapt to the processing of various types of hubs, with the characteristics of quick replacement and locking, and is easy to operate.

[0025] 3. It is convenient to quickly switch between the inner hub clamping seat and the outer hub clamping seat, so as to realize various forms of clamping and positioning of the hub.

[0026] The above are only partial embodiments of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the principle of the present invention, several improvements and refinements can be made, and these improvements and refinements should also be regarded as the protection scope of the present invention.

Claims

1. An electric vehicle wheel hub welding tool, characterized in that: It includes a base, a displacement adjustment component and two sets of clamping mechanisms. The displacement adjustment assembly includes a fixed frame arranged on the base, two mounting platforms, a guide rail rod and a bidirectional screw rod arranged on the fixed frame, the two mounting platforms are respectively threadedly sleeved on both ends of the bidirectional screw rod, and the guide rail rod is arranged through the mounting platforms, and under the rotation drive of the bidirectional screw rod, the two mounting platforms can be synchronously translated toward or away from each other along the guide rail rod; The two groups of clamping mechanisms are respectively arranged on two mounting tables. The clamping assembly includes a carrier frame, a flip disk arranged on the carrier frame and a polyhedron clamping assembly. The polyhedron clamping assembly is fixed on the flip disk through a support seat and can be flipped with the flip disk. The polyhedron clamping assembly is provided with multiple groups of clamping bodies that can clamp the wheel hub.

2. The electric vehicle wheel hub welding tool according to claim 1, characterized in that: The polyhedron clamping assembly comprises a rotating base and a plurality of groups of separate support bodies which are separately arranged at the outer edge of the rotating base.

3. The electric vehicle wheel hub welding tool according to claim 2, characterized in that: The split support includes a split support body, an insert block and a clamping end respectively located at the rear end and the front end of the split support body, and the clamping end includes an outer hub clamping seat and an inner hub clamping seat. The outer hub clamping seat and the inner hub clamping seat have curvatures that match the outer ring and inner ring of the hub respectively.

4. The electric vehicle hub welding tool according to claim 3, characterized in that: The outer circumferential surface of the rotating base is provided with an I-shaped embedding groove, and a locking assembly is provided in the embedding groove. The locking assembly includes a locking strip, the middle part of which is movably arranged in the embedding groove through an axle pin, a locking head is provided at the front end of the locking strip, and a compression spring is provided at the rear end; the plug-in block of the split support body matches the I-shaped shape of the embedding groove, and a locking groove is also provided on the plug-in block; When the insert block is inserted into the embedding groove, the locking head at the front end of the locking strip can be lifted up. When the insertion continues, the locking head at the front end of the locking strip falls into the locking groove on the insert block to fix and lock the split support.

5. The electric vehicle wheel hub welding tool according to claim 4, characterized in that: The flip disk is driven by a first worm gear assembly, which includes a first turbine connected to the flip disk and a first worm arranged on a carrier, and the first worm and the first turbine constitute a worm gear assembly.

6. The electric vehicle wheel hub welding tool according to claim 4, characterized in that: The support seat comprises a support frame and a vertical axis arranged on the support frame, and the vertical axis is arranged at the center of the rotating base.

7. The electric vehicle wheel hub welding tool according to claim 6, characterized in that: It also includes a second worm gear mechanism arranged on the flip plate, the second worm gear mechanism includes a second turbine coaxially arranged with the vertical axis and a second worm arranged on the flip plate, and the second worm drives the second turbine to rotate.

8. A welding method for electric vehicle hub based on the tooling of claims 1-7, characterized in that The following steps are involved: S1, according to the hub model, the rotating base is switched to the appropriate hub clamping end through the second worm gear mechanism; S2, placing the wheel hub at the target position, using the shifting mechanism to drive the adjustment table carrier, the turning plate, the rotating base and the wheel hub clamping end head to move, and the two sets of wheel hub clamping end heads clamp and position the wheel hub; S3, using welding equipment to perform welding operations on the clamped and positioned wheel hub; S4, when the other side of the wheel hub needs to be processed, the turning plate, the rotating base, the wheel hub clamping end and the wheel hub are driven to rotate by the turning mechanism to realize the wheel hub turning welding processing; S5, after the welding process is completed, the device is reset and the processed wheel hub is removed.

Images