A rim spoke welding device

Abstract

The application relates to the technical field of wheel hub processing, in particular to a rim spoke welding device which comprises a rotating mechanism, a workbench, an internal pressure mechanism, a horizontal pulling and moving mechanism, an upper positioning seat, a lower positioning seat and two vertical guide plates, the two vertical guide plates are fixedly installed on the rotating seat of the rotating mechanism, the rim spoke welding device can be used for automatic electric arc welding in cooperation with a mechanical hand, manual participation is not needed during overturning, the upper positioning seat or the lower positioning seat above the wheel hub is automatically moved to a plug rod during welding, there is no any shelter above the wheel hub, and the mechanical hand is convenient for welding. The upper positioning seat and the lower positioning seat clamp the wheel hub during welding, then the wheel hub is not shaken during overturning due to the positioning of a snap ring, the wheel hub is automatically positioned by the upper positioning seat or the lower positioning seat after overturning is completed, and the mechanical hand can accurately weld. And there is no any obstacle during the rotation of the upper positioning seat and the lower positioning seat, and no collision occurs.

Description

Technical Field

[0001] This invention relates to the field of wheel hub processing technology, and more specifically to a wheel rim and spoke welding device. Background Technology

[0002] The wheel rim and spokes are pressed together using a stamping machine, and then welded together by a welding robot. The welding robot uses an automatic electric arc to melt the welding rod. Since the welding robot is pre-programmed for positioning, its placement must be accurate each time to prevent arc extinguishing due to excessive distance during welding, and also to avoid the welding rod sticking to the wheel hub due to excessive proximity. Current technology uses manual flipping after each weld for the next weld, but manual flipping is physically demanding due to the weight of the wheel hub and the long process required. Existing technology also incorporates a flipping mechanism for automatic flipping, but this requires first removing the wheel hub into the mechanism, then flipping it, and finally placing it back in the welding position. If the hub is not removed, the baffle used for flipping will be above the wheel hub, making it difficult for the robot to reach during welding, thus hindering the weld.

[0003] Therefore, it is necessary to design a rim and spoke welding device that can perform automatic arc welding in conjunction with a robotic arm, and that does not require manual intervention when flipping the wheel hub, and that has no baffle above the wheel hub during welding. Summary of the Invention

[0004] To address the aforementioned technical shortcomings, the present invention aims to provide a wheel rim and spoke welding device that can perform automatic arc welding in conjunction with a robotic arm, and does not require manual intervention during rotation, and has no baffle above the wheel hub during welding.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: The present invention provides a rim and spoke welding device, including a rotating mechanism, a worktable, an internal pressure mechanism, a horizontal pulling mechanism, an upper positioning seat, a lower positioning seat, and two vertical guide plates. The two vertical guide plates are fixedly installed on the rotating seat of the rotating mechanism. Each vertical guide plate is provided with two symmetrically distributed vertical guide grooves. Both the upper and lower vertical guide grooves extend outward and have side notches. Two sliders are fixedly installed on both sides of the upper and lower positioning seats. The upper and lower positioning seats are connected by... The sliders are respectively locked in the upper and lower vertical guide slots. The sliders pass through the side notches and are locked into the vertical guide slots. An elastic outward pushing mechanism that pushes the sliders from the inside out is fixedly installed on the vertical guide plate. The internal pressure mechanism is fixedly installed on the rotating mechanism. The internal pressure mechanism is used to press the upper positioning seat and the lower positioning seat inward. The worktable is provided with a rotating clearance hole for the upper positioning seat and the lower positioning seat to select and switch their relative positions. Before the internal pressure mechanism presses, the elastic outward pushing mechanism pushes the slider to fit against the end of the vertical guide slot, and the upper positioning seat or the lower positioning seat is locked with the horizontal pulling mechanism.

[0006] Preferably, the rotating mechanism has two symmetrically arranged rotating shafts. The internal pressure mechanism includes two internal pressure units respectively mounted on the rotating shafts. Each internal pressure unit includes a disc, a horizontal pushing mechanism, and an elastic pusher. The end of the rotating shaft is fixedly connected to the vertical guide plate. The outer edge of the end of the rotating shaft has a spline structure. The middle of the disc has a spline hole that slides with the spline. Two sets of symmetrical triangular blocks are fixedly arranged on the disc. The inner inclined surfaces of the upper and lower sets of triangular blocks contact the sides of the upper and lower positioning seats, respectively. The horizontal pushing mechanism is fixedly mounted on the worktable. The pushing plate on the horizontal pushing mechanism is used to push the disc inward. The elastic pusher is fixedly mounted on the vertical guide plate. The elastic pusher is used to push the internal pressure mechanism away from the vertical guide plate. When the horizontal pushing mechanism pushes the internal pressure mechanism to abut against the vertical guide plate, the sliders on the upper and lower positioning seats abut against the lifting end of the elastic pusher mechanism, causing the elastic pusher mechanism to compress to its limit position.

[0007] Preferably, it also includes a synchronous support mechanism, which includes two support tubes and two rotating rods arranged symmetrically. The two support tubes are horizontally mounted on the worktable via slide blocks and slide rails. The middle part of the rotating rod is rotatably mounted on the worktable. Each support tube is fixedly provided with a sliding shaft one, and the two sides of the push plate are fixedly provided with sliding shaft two. The two sides of the rotating rod are respectively provided with waist-shaped grooves for sliding shaft one and sliding shaft two to be inserted.

[0008] Preferably, the horizontal pulling mechanism includes two insert rods, an electric push rod, and a connecting plate fixedly installed at the working end of the electric push rod. Two locking shafts are fixedly provided at the bottom of the connecting plate. The upper and lower positioning seats are provided with locking holes for the locking shafts to be inserted. The two insert rods are fixedly installed horizontally on the worktable, with the ends of the insert rods located outside the circumferential contour. The upper and lower positioning seats are provided with insertion holes for the insert rods to be inserted. The vertical guide groove extends outward along the side notch and is provided with two extension strips. Before the insertion hole and the insert rod are completely separated, the slider is inserted between the two extension strips. When the lifting plate is compressed to the limit position by the slider, the locking shaft is pulled out from the locking hole.

[0009] Preferably, each elastic push mechanism includes a lifting plate, a retaining ring, a spring, and a guide post. The guide post is slidably mounted on the vertical guide plate along the length of the vertical guide groove. The lifting plate is fixedly mounted on the end of the guide post. The retaining ring is fixedly mounted on the outer edge of the guide post. The spring provides an elastic force to the retaining ring that is close to the slider.

[0010] Preferably, the rotating mechanism includes two single-sided pushing mechanisms, with two rotating shafts respectively connected to the two single-sided pushing mechanisms. Each single-sided pushing mechanism includes a gear, a rack, and an electric push rod. The gear is fixedly installed at the end of the rotating shaft, and the rotating shaft is rotatably mounted on the worktable via a bearing seat. The rack is meshed with the gear and is horizontally slidable on the worktable. The electric push rod is fixedly installed on the worktable and is fixedly connected to the end of the rack.

[0011] Preferably, the horizontal pushing mechanism further includes an electric push rod two, which is fixedly installed on the worktable. The push plate is fixedly connected to the working end of the electric push rod two, and extension side plates are provided on both sides of the push plate. The slide shaft two is fixedly connected to the extension side plates.

[0012] Preferably, the elastic pusher includes a second spring, a second guide post, and a guide plate. The guide plate is fixedly installed on the vertical guide plate, the second guide post is slidably connected to the guide plate, and the end of the second guide post is provided with a circular push plate that abuts against the disc. The second spring is used to apply an elastic force close to the disc to the circular push plate.

[0013] Preferably, the rotating rod has a curved structure.

[0014] Preferably, both the upper and lower positioning seats are provided with retaining rings, the two retaining rings are of the same thickness, and both retaining rings are provided with beveled edges that fit the wheel hub contour.

[0015] The beneficial effects of this invention are as follows: the rim and spoke welding device can perform automatic arc welding in conjunction with a robotic arm, and no manual intervention is required when it is flipped. During welding, the upper or lower positioning seat above the hub automatically moves to the insert rod, and there is no obstruction above the hub, which facilitates welding by the robotic arm.

[0016] Furthermore, during welding, the upper and lower positioning seats clamp the wheel hub. Then, during the flipping process, the positioning of the retaining ring ensures that there is no shaking during the flipping process. After the flipping is completed, the wheel hub is automatically positioned by the upper or lower positioning seat, allowing the robot arm to perform welding accurately.

[0017] Furthermore, when the upper or lower positioning seat moves horizontally, it is automatically engaged with the horizontal pulling mechanism by an elastic pushing mechanism. And when the upper and lower positioning seats rotate, there are no obstructions and no collisions occur.

[0018] Furthermore, regardless of whether the upper or lower positioning seat moves to the lower position, it can be clamped and positioned by the synchronous support mechanism, avoiding unstable swaying caused by the design of the rotating structure, and ensuring that the wheel hub can be stable and not move during welding. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 1 .

[0021] Figure 2 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 2 .

[0022] Figure 3 This is a partial front view of the present invention.

[0023] Figure 4 This is a side view of the clamping posture of the present invention.

[0024] Figure 5 This is a schematic diagram showing the state of the elastic push-out mechanism and the vertical guide plate.

[0025] Figure 6 This is a schematic diagram showing the separation of the rotating shaft and the disk.

[0026] Figure 7 This is a three-dimensional structural diagram of the synchronous support mechanism.

[0027] Figure 8 This is a top view of the support tube and clamp.

[0028] Figure 9 This is a three-dimensional structural diagram of the upper positioning seat.

[0029] Figure 10This is a partial three-dimensional structural diagram of the horizontal pulling mechanism.

[0030] Figure 11 This is a three-dimensional structural diagram of the rotating mechanism.

[0031] Figure 12 This is a three-dimensional structural diagram of the internal pressure mechanism.

[0032] Figure 13 This is a three-dimensional structural diagram of the upper positioning base from another perspective.

[0033] Explanation of reference numerals in the attached drawings: 1. Rotating mechanism; 1a. Rotating shaft; 1b. Gear; 1c. Rack; 1d. Electric push rod one; 2. Worktable; 2a. Rotating clearance hole; 3. Internal pressure mechanism; 3a. Disc; 3b. Triangular block; 3c. Horizontal pushing mechanism; 3c1. Push plate; 3c2. Electric push rod two; 3d. Elastic pusher; 3d1. Spring two; 3d2. Guide post two; 3d3. Guide plate; 4. Horizontal pulling mechanism; 4a. Insert rod; 4b. Electric push rod; 4c. 4d, Insertion hole; 4e, Locking hole; 4f, Connecting plate; 5, Vertical guide plate; 5a, Vertical guide groove; 5a1, Side notch; 5b, Extension strip; 6, Synchronous support mechanism; 6a, Support tube; 6b, Clamping plate; 6c, Rotating rod; 6d, Slide shaft one; 6e, Slide shaft two; 7, Elastic push mechanism; 7a, Lifting plate; 7b, Retaining ring; 7c, Spring one; 7d, Guide post one; 10, Hub; 11, Upper positioning seat; 12, Lower positioning seat; 13, Slider; 14, Locking ring. Detailed Implementation

[0034] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0035] Example: This invention provides a rim and spoke welding device, such as... Figure 1-13As shown, the system includes a rotating mechanism 1, a worktable 2, an internal pressure mechanism 3, a horizontal pulling mechanism 4, an upper positioning seat 11, a lower positioning seat 12, and two vertical guide plates 5. The two vertical guide plates 5 are fixedly mounted on the rotating seat of the rotating mechanism 1. Each vertical guide plate 5 has two symmetrically distributed vertical guide grooves 5a. Both the upper and lower vertical guide grooves 5a extend outwards and have side notches 5a1. Two sliders 13 are fixedly mounted on both sides of the upper positioning seat 11 and the lower positioning seat 12. The upper positioning seat 11 and the lower positioning seat 12 are respectively engaged in the upper and lower vertical guide grooves 5a by the sliders 13. 13 passes through the side notch 5a1 and is inserted into the vertical guide groove 5a. An elastic outward pushing mechanism 7 is fixedly installed on the vertical guide plate 5, pushing the slider 13 from the inside out. An internal pressure mechanism 3 is fixedly installed on the rotating mechanism 1. The internal pressure mechanism 3 is used to press the upper positioning seat 11 and the lower positioning seat 12 inward. The worktable 2 has a rotation clearance hole 2a for the upper positioning seat 11 and the lower positioning seat 12 to select and switch their relative positions. Before the internal pressure mechanism 3 presses, the elastic outward pushing mechanism 7 pushes the slider 13 to fit against the end of the vertical guide groove 5a, and the upper positioning seat 11 or the lower positioning seat 12 engages with the horizontal pulling mechanism 4. Since the rotating mechanism 1 rotates to change its position, when the upper positioning seat 11 or the lower positioning seat 12 rotates to the upper position, the upper positioning seat 11 or the lower positioning seat 12 engages with the horizontal pulling mechanism 4. Figure 1 The upper positioning seat 11 is in the position when it is transported from the horizontal pulling mechanism 4 to the vertical guide plate 5. Initially, the upper positioning seat 11 is not in this position; the upper positioning seat 11 is located on the horizontal pulling mechanism 4.

[0036] After the tops of the rim and spokes are welded, the upper positioning seat 11 is transported to the horizontal pulling mechanism 4. Figure 1 As shown, after the transport is completed, the working end of the horizontal pulling mechanism 4 retracts. Then, the internal pressure mechanism 3 simultaneously presses the upper positioning seat 11 and the lower positioning seat 12 inward, causing the slider 13 to slide inward along the vertical guide groove 5a (towards the center of the disk 3a).

[0037] After the internal pressure mechanism 3 fixes the upper positioning seat 11 and the lower positioning seat 12, the rotating mechanism 1 drives them to rotate, causing the upper positioning seat 11 and the lower positioning seat 12 to switch positions. The lower positioning seat 12 will rotate to the upper position, at which point the wheel hub 10 also achieves position flipping.

[0038] Before the internal pressure mechanism 3 separates, the working end of the horizontal pulling mechanism 4 extends. After the internal pressure mechanism 3 separates from the upper positioning seat 11 and the lower positioning seat 12, the slider 13 on the lower positioning seat 12 is automatically lifted upward, causing the lower positioning seat 12 to automatically engage with the horizontal pulling mechanism 4. Then, by pulling the working end of the horizontal pulling mechanism 4 along the direction of F3, the lower positioning seat 12 can be moved to... Figure 2As shown in the image, the bottom of the rim and spokes can then be welded using an automatic electric arc welding arm.

[0039] The above method allows for welding of the top and bottom of the rim and spokes. During rotation, the hub 10 is clamped and then rotated. Before rotation, the upper positioning seat 11 can be stored, and after rotation, the lower positioning seat 12 above the hub 10 can be horizontally removed, ensuring an open top for welding and facilitating the welding process of the welding robot. Since both the upper and lower positioning seats 11 and 12 are equipped with retaining rings for positioning and connecting with the hub 10, the need for the internal pressure mechanism 3 to push and clamp is avoided. This ensures that the upper and lower positioning seats 11 and 12 are firmly clamped to the hub 10, preventing the hub 10 from shaking during rotation.

[0040] When the horizontal pulling mechanism 4 pulls horizontally, it will move along the direction of F3. When the internal pressure mechanism 3 releases the clamp on the upper positioning seat 11 and the lower positioning seat 12, the two discs 3a will move along the directions of F1 and F2 respectively.

[0041] The rotating mechanism 1 has two symmetrically arranged rotating shafts 1a. The internal pressure mechanism 3 includes two internal pressure units respectively mounted on the rotating shafts 1a. Each internal pressure unit includes a disc 3a, a horizontal pushing mechanism 3c, and an elastic pusher 3d. The end of the rotating shaft 1a is fixedly connected to the vertical guide plate 5. The outer edge of the end of the rotating shaft 1a has a spline structure. The center of the disc 3a has a spline hole that slides with the spline. Two sets of symmetrical triangular blocks 3b are fixedly arranged on the disc 3a. The inner sides of the upper and lower sets of triangular blocks 3b... The inclined surfaces contact the sides of the upper positioning seat 11 and the lower positioning seat 12 respectively. The horizontal pushing mechanism 3c is fixedly installed on the worktable 2. The pushing plate 3c1 on the horizontal pushing mechanism 3c is used to push the disc 3a inward. The elastic pusher 3d is fixedly installed on the vertical guide plate 5. The elastic pusher 3d is used to push the inner pressure mechanism 3 away from the vertical guide plate 5. First, the horizontal pushing mechanism 3c works. The pushing plate 3c1 pushes the disc 3a toward the vertical guide plate 5, and at the same time, it also drives the triangular block 3b to move. The upper and lower triangular blocks 3b will simultaneously push the upper positioning seat 11 and the lower positioning seat 12 to slide along the vertical guide groove 5a, and at the same time compress the elastic pusher 7. When the horizontal pushing mechanism 3c pushes the inner pressure mechanism 3 to abut against the vertical guide plate 5, the slider 13 on the upper positioning seat 11 and the lower positioning seat 12 abuts against the lifting end of the elastic pusher 7, so that the elastic pusher 7 is compressed to the limit position, that is, it presents Figure 5 The state shown indicates that the upper positioning seat 11 and the lower positioning seat 12 are fixed. Then, the rotating shaft 1a is rotated by the rotating mechanism 1, so that the disc 3a connected to the rotating shaft 1a and the vertical guide plate 5 rotate together, and finally the hub 10 is flipped.

[0042] During the rotation, because the disk 3a has a circular structure, the push plate 3c1 can always maintain contact with the disk 3a, preventing the disk 3a from being pushed back by the elastic pusher 3d during the rotation.

[0043] After the rotation is completed, the horizontal pushing mechanism 3c controls the pushing plate 3c1 to reset and retract, the disc 3a will be pushed back to its original position by the elastic pusher 3d, and the upper positioning seat 11 and the lower positioning seat 12 will be pushed back to their original positions by the elastic outward pushing mechanism 7.

[0044] The method described above pushes the upper positioning seat 11 and the lower positioning seat 12 to move inward synchronously, instead of pressing the hub 10 from top to bottom. If this method were used, the height of the hub 10 would need to be adjusted after the pressing mechanism rotates. Furthermore, the structure of this internal pressure mechanism 3 reduces the overall rotational profile and the opening size of the rotation clearance hole 2a. It also reduces the centrifugal force experienced during rotation.

[0045] It also includes a synchronous support mechanism 6, which comprises two symmetrically arranged support tubes 6a and two rotating rods 6c. The two support tubes 6a are horizontally mounted on the worktable 2 via slide blocks and slide rails. When the internal pressure mechanism 3 releases its clamping grip on the upper positioning seat 11 and the lower positioning seat 12, the bottom of the lower positioning seat 11 or the lower positioning seat 12 is in contact with the top of the support tube 6a, and is supported by the two support tubes 6a to prevent shaking during welding. The middle part of the rotating rod 6c is rotatably mounted on the worktable 2. Each support tube 6a is fixedly provided with a sliding shaft 6d, and two sliding shafts 6e are fixedly provided on both sides of the push plate 3c1. The two sides of the rotating rod 6c are respectively provided with waist-shaped grooves for the sliding shafts 6d and 6e to be inserted. Figure 3As shown, S1 is the maximum rotation contour line. At this time, the position of the support tube 6a will not contact the upper positioning seat 11 and the lower positioning seat 12 during the rotation process. After rotation, and during the reset process of the push plate 3c1, the upper positioning seat 11 or the lower positioning seat 12 located below will move downward. At the same time, the push plate 3c1 will pull the rotating rod 6c to rotate through the second sliding shaft 6e on the side, so that the rotating rod 6c will pull the support tube 6a inward through the first sliding shaft 6d. The support tube 6a will support the bottom of the upper positioning seat 11 or the lower positioning seat 12. After the push plate 3c1 is reset, the two clamping plates 6b will clamp the two sides of the upper positioning seat 11 or the lower positioning seat 12 to prevent the upper positioning seat 11 or the lower positioning seat 12 from being pushed and moved laterally during welding due to the side notch 5a1. Furthermore, during the descent of the upper positioning seat 11 or the lower positioning seat 12, the support tube 6a moves. If the support tube 6a is pushed inward after the descent is completed, the friction between the top of the support tube 6a and the support tube 6a will cause it to slide directly to the side, and there is a possibility that it will slide out from the side notch 5a1.

[0046] The horizontal pulling mechanism 4 includes two insert rods 4a, an electric push rod 4b, and a connecting plate 4f fixedly installed at the working end of the electric push rod 4b. Two locking shafts 4c are fixedly provided at the bottom of the connecting plate 4f. The upper positioning seat 11 and the lower positioning seat 12 are both provided with locking holes 4e for the locking shafts 4c to be inserted. The two insert rods 4a are horizontally fixedly installed on the worktable 2. The ends of the insert rods 4a are located outside the circumferential contour of S1. The upper positioning seat 11 and the lower positioning seat 12 are provided with insertion holes 4d for the insert rods 4a to be inserted. The vertical guide groove 5a extends outward along the side notch 5a1 and is provided with two extension strips 5b. Before the insertion hole 4d is completely separated from the insert rod 4a, the slider 13 is inserted between the two extension strips 5b. When the lifting plate 7a is compressed to the limit position by the slider 13, the locking shaft 4c is pulled out from the locking hole 4e. The retaining shaft 4c is horizontally pushed towards the rotating mechanism 1 by the electric push rod 4b, causing the upper positioning seat 11 or lower positioning seat 12, which is engaged with the insertion rod 4a, to be horizontally pushed. Before the insertion hole 4d is completely separated from the insertion rod 4a, the slider 13 is engaged between the two extension bars 5b. This ensures that the end of the insertion rod 4a is not within S1, as the upper and lower positioning seats 11 and 12 have already separated from it beforehand. The final distance is achieved by the extension bars 5b, and S1 is determined by the width of the upper and lower positioning seats 11 and 12, thus preventing contact during subsequent rotation. After the electric push rod 4b pushes the rod, the internal pressure mechanism 3 presses the upper and lower positioning seats 11 and 12 inward, causing the retaining shaft 4c to be pulled out of the retaining hole 4e, achieving automatic separation. The working end of the electric push rod 4b can then be retracted. When the internal pressure mechanism 3 releases the upper positioning seat 11 and the lower positioning seat 12, the locking hole 4e will automatically engage with the locking shaft 4c, so that the electric push rod 4b can automatically pull out the upper positioning seat 11 or the lower positioning seat 12 located above, which is convenient for the subsequent welding robot to use automatic electric arc welding.

[0047] Each elastic push mechanism 7 includes a lifting plate 7a, a retaining ring 7b, a spring 7c, and a guide post 7d. The guide post 7d is slidably mounted on the vertical guide plate 5 along the length of the vertical guide groove 5a. The lifting plate 7a is fixedly mounted on the end of the guide post 7d, and the retaining ring 7b is fixedly mounted on the outer edge of the guide post 7d. The spring 7c provides an elastic force to the retaining ring 7b close to the slider 13. When the slider 13 slides inward along the vertical guide groove 5a, the spring 7c is compressed. After the internal pressure mechanism 3 is reset, the lifting plate 7a pushes the slider 13 outward to abut against the top of the vertical guide groove 5a.

[0048] The rotating mechanism 1 includes two single-sided pushing mechanisms. Two rotating shafts 1a are connected to the two single-sided pushing mechanisms respectively. Each single-sided pushing mechanism includes a gear 1b, a rack 1c, and an electric push rod 1d. The gear 1b is fixedly installed at the end of the rotating shaft 1a. The rotating shaft 1a is rotatably mounted on the worktable 2 via a bearing seat. The rack 1c meshes with the gear 1b and is horizontally slidable on the worktable 2. The electric push rod 1d is fixedly installed on the worktable 2 and is fixedly connected to the end of the rack 1c. By controlling the retraction or extension of the working ends of the two electric push rods 1d, the rack 1c pushes the gear 1b to rotate, thus causing the gear 1b to drive the rotating shaft 1a to rotate. The horizontal sliding of the rack 1c is achieved by installing a slide block and a slide rail at the bottom of the rack 1c. When the rotating shaft 1a rotates, it simultaneously drives the vertical guide plate 5 to rotate.

[0049] The horizontal pushing mechanism 3c also includes an electric push rod 3c2, which is fixedly mounted on the worktable 2. A push plate 3c1 is fixedly connected to the working end of the electric push rod 3c2. Extended side plates are provided on both sides of the push plate 3c1, and a sliding shaft 6e is fixedly connected to the extended side plates. Through the extension side plates, the sliding shaft 6e and the sliding shaft 6d can form a diagonal structure. When the extension end of the electric push rod 3c2 pulls the push plate 3c1 backward, the support tube 6a can move inward.

[0050] The elastic pusher 3d includes a second spring 3d1, a second guide post 3d2, and a guide plate 3d3. The guide plate 3d3 is fixedly mounted on the vertical guide plate 5. The second guide post 3d2 is slidably connected to the guide plate 3d3. A circular push plate that abuts against the disk 3a is provided at the end of the second guide post 3d2. The second spring 3d1 is used to apply an elastic force close to the disk 3a to the circular push plate. Through the elastic force of the second spring 3d1, when the horizontal pushing mechanism 3c resets, the second guide post 3d2 can push the disk 3a to reset as well.

[0051] The rotating rod 6c has a curved structure. The slope of the curve of the rotating rod 6c is determined by the transmission ratio of the backward movement distance of the push plate 3c1 and the inward movement distance of the support tube 6a. This ensures that when the triangular block 3b is completely separated from the upper positioning seat 11 or the lower positioning seat 12, that is, when the upper positioning seat 11 and the lower positioning seat 12 move to their final positions on the upper and lower sides, the clamping plate 6b needs to clamp the upper positioning seat 11 or the lower positioning seat 12 located below.

[0052] Both the upper positioning seat 11 and the lower positioning seat 12 are provided with retaining rings 14. The two retaining rings 14 have the same thickness and both have beveled edges that conform to the contour of the wheel hub 10. Because their thickness is the same, the separation distance of the upper or lower positioning seat 11 to the sides is the same. However, the contours of the upper and lower sides of the wheel hub 10 are definitely different, which can be adapted by changing the slope. At the same time, different types of wheel hubs 10 only need to have their retaining rings 14 replaced, because the width of the wheel hub is generally a standard size, and the width of the wheel hub must be consistent with the tire.

[0053] When using, from Figure 1 The process begins with the upper positioning seat 11 positioned on the insert rod 4a. The first welding is performed using a robotic arm. After the tops of the rim and spokes are welded, the upper positioning seat 11 is then transported to the next location via the horizontal pulling mechanism 4. Figure 1 As shown in the diagram, after the transport is completed, the working end of the horizontal pulling mechanism 4 retracts. Then, the internal pressure mechanism 3 simultaneously presses the upper positioning seat 11 and the lower positioning seat 12 inward, causing the slider 13 to slide along the vertical guide groove 5a toward the center of the inner disk 3a.

[0054] After the internal pressure mechanism 3 fixes the upper positioning seat 11 and the lower positioning seat 12, the rotating mechanism 1 drives them to rotate, causing the upper positioning seat 11 and the lower positioning seat 12 to switch positions. The lower positioning seat 12 will rotate to the upper position, at which point the wheel hub 10 also achieves position flipping.

[0055] Before the internal pressure mechanism 3 separates, the working end of the horizontal pulling mechanism 4 extends. After the internal pressure mechanism 3 separates from the upper positioning seat 11 and the lower positioning seat 12, the slider 13 on the lower positioning seat 12 is automatically lifted upward, causing the lower positioning seat 12 to automatically engage with the horizontal pulling mechanism 4. Then, by pulling the working end of the horizontal pulling mechanism 4 along the direction of F3, the lower positioning seat 12 can be moved to... Figure 2 As shown in the image, the bottom of the rim and spokes can then be welded using a welding robot.

[0056] This rim and spoke welding device can perform automatic arc welding in conjunction with a robotic arm, and does not require manual intervention when flipping. During welding, the upper positioning seat 11 or lower positioning seat 12 above the hub automatically moves onto the insertion rod 4a, leaving the hub 10 unobstructed, which facilitates welding by the robotic arm.

[0057] Furthermore, during welding, the upper positioning seat 11 and the lower positioning seat 12 clamp the hub 10. Then, during the flipping process, the positioning of the retaining ring 14 ensures that there is no shaking during the flipping process. After the flipping is completed, the hub 10 is automatically positioned by the upper positioning seat 11 or the lower positioning seat 12, and the robot can accurately perform welding.

[0058] Furthermore, when the upper positioning seat 11 or the lower positioning seat 12 moves horizontally, it is automatically engaged with the horizontal pulling mechanism 4 by the elastic pushing mechanism 7. And when the upper positioning seat 11 and the lower positioning seat 12 rotate, there are no obstructions and no collisions occur.

[0059] Furthermore, regardless of whether the upper positioning seat 11 or the lower positioning seat 12 moves to the lower position, it can be clamped and positioned by the synchronous support mechanism 6, avoiding unstable shaking caused by the design of the rotating structure, and ensuring that the hub 10 can be stable and not move during welding.

[0060] Obviously, those skilled in the art can make various modifications and variations to this invention without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this invention and their equivalents, this invention also intends to include these modifications and variations.

Claims

1. A rim spoke welding apparatus characterized by, The utility model provides a kind of rotating mechanism (1), workbench (2), inner pressure mechanism (3), horizontal pull mechanism (4), upper locating seat (11), lower locating seat (12) and two vertical guide plates (5), two vertical guide plates (5) are fixedly installed on the rotating seat of rotating mechanism (1), each vertical guide plate (5) is provided with two vertical guide slots (5a) that are symmetrically distributed, and the upper and lower two vertical guide slots (5a) are outwardly extended and provided with side notches (5a1), the two sides of upper locating seat (11) and lower locating seat (12) are fixedly provided with two sliders (13), and upper locating seat (11) and lower locating seat (12) are respectively clamped in the upper and lower two vertical guide slots (5a) by slider (13), slider (13) passes through side notch (5a1) and is clamped into vertical guide slot (5a), and elastic outer pushing mechanism (7) is fixedly provided on vertical guide plate (5) and pushes slider (13) from inside to outside, inner pressure mechanism (3) is fixedly installed on rotating mechanism (1), and inner pressure mechanism (3) is used to extrude upper locating seat (11) and lower locating seat (12) to inside, workbench (2) is provided with rotating avoiding hole (2a) for the mutual position of upper locating seat (11) and lower locating seat (12) to select switching, before extrusion, elastic outer pushing mechanism (7) pushes slider (13) and the end of vertical guide slot (5a) to fit, and upper locating seat (11) or lower locating seat (12) is connected with horizontal pull mechanism (4); Rotating mechanism (1) is provided with two rotating shafts (1a) that are symmetrically arranged, and inner pressure mechanism (3) includes two inner pressure devices respectively installed on rotating shaft (1a), each inner pressure device includes disc (3a), horizontal pushing mechanism (3c) and elastic pusher (3d), the end of rotating shaft (1a) is fixedly connected with vertical guide plate (5), the outer edge of the end of rotating shaft (1a) is spline structure, the middle part of disc (3a) is provided with spline hole for spline sliding connection, disc (3a) is fixedly provided with two groups of triangular blocks (3b) that are symmetric, and the inner side slope of the upper and lower two groups of triangular blocks (3b) is respectively contacted with the side surface of upper locating seat (11) and lower locating seat (12), horizontal pushing mechanism (3c) is fixedly installed on workbench (2), and the pushing plate (3c1) on horizontal pushing mechanism (3c) is used to push disc (3a) to inside, and elastic pusher (3d) is fixedly installed on vertical guide plate (5), and elastic pusher (3d) is used to push inner pressure mechanism (3) away from vertical guide plate (5), when horizontal pushing mechanism (3c) pushes inner pressure mechanism (3) and vertical guide plate (5) to resist, the slider (13) on upper locating seat (11) and lower locating seat (12) and the jacking end of elastic outer pushing mechanism (7) resist, so that elastic outer pushing mechanism (7) is compressed to limit position.

2. A rim spoke welding apparatus as defined in claim 1, wherein Synchronous supporting mechanism (6) is further included, synchronous supporting mechanism (6) includes two support tubes (6a) and two rotary rods (6c) arranged symmetrically, two support tubes (6a) are installed on workbench (2) by slide and slide rail and can slide horizontally, the middle part of rotary rod (6c) is rotatably installed on workbench (2), the sliding shaft one (6d) is fixedly arranged on each support tube (6a), the sliding shaft two (6e) is fixedly arranged on the both sides of push plate (3c1), the waist-shaped slot for sliding shaft one (6d) and sliding shaft two (6e) are respectively provided on the both sides of rotary rod (6c) and are clamped.

3. A rim spoke welding apparatus as defined in claim 2, wherein, Horizontal pulling mechanism (4) includes two insertion rods (4a), electric push rod (4b) and connecting plate (4f) fixedly installed on the working end of electric push rod (4b), the bottom of connecting plate (4f) is fixedly provided with two clamping shafts (4c), the clamping hole (4e) for clamping shaft (4c) is formed in the upper positioning seat (11) and the lower positioning seat (12), two insertion rods (4a) are fixedly installed on workbench (2) horizontally, the end of insertion rod (4a) is located outside the circumferential contour of S1, the insertion hole (4d) for insertion rod (4a) is formed in the upper positioning seat (11) and the lower positioning seat (12), two extension bars (5b) are provided on the vertical guide groove (5a) and extend outward along the side notch (5a1), when the insertion hole (4d) is completely separated from the insertion rod (4a), the sliding block (13) is clamped between the two extension bars (5b), when the jacking plate (7a) is compressed to the limit position by the sliding block (13), the clamping shaft (4c) is pulled out of the clamping hole (4e).

4. A rim spoke welding apparatus as defined in claim 1, wherein, Each elastic outer pushing mechanism (7) includes jacking plate (7a), retaining ring (7b), spring one (7c) and guide column one (7d), guide column one (7d) is slidably installed on vertical guide plate (5) along the length direction of vertical guide groove (5a), jacking plate (7a) is fixedly installed on the end of guide column one (7d), retaining ring (7b) is fixedly installed on the outer edge of guide column one (7d), spring one (7c) is used to provide elastic force for retaining ring (7b) to approach sliding block (13).

5. A rim spoke welding apparatus as defined in claim 1, wherein, Rotating mechanism (1) includes two single-side pushing mechanisms, two rotating shafts (1a) are respectively connected with two single-side pushing mechanisms, each single-side pushing mechanism includes gear (1b), rack (1c) and electric push rod one (1d), gear (1b) is fixedly installed on the end of rotating shaft (1a), rotating shaft (1a) is rotatably installed on workbench (2) through shaft seat, rack (1c) is connected with gear (1b) in meshing mode, rack (1c) is slidably installed on workbench (2) horizontally, electric push rod one (1d) is fixedly installed on workbench (2), and the end of electric push rod one (1d) is fixedly connected with rack (1c).

6. A rim spoke welding apparatus as defined in claim 2 wherein, Horizontal pushing mechanism (3c) further includes electric push rod two (3c2), electric push rod two (3c2) is fixedly installed on workbench (2), push plate (3c1) is fixedly connected with the working end of electric push rod two (3c2), and the both sides of push plate (3c1) are provided with extension side plates, and the sliding shaft two (6e) is fixedly connected with the extension side plates.

7. A rim spoke welding apparatus as defined in claim 1 wherein, The elastic pusher (3d) includes a second spring (3d1), a second guide post (3d2), and a guide plate (3d3). The guide plate (3d3) is fixedly installed on the vertical guide plate (5). The second guide post (3d2) is slidably connected to the guide plate (3d3). The end of the second guide post (3d2) is provided with a circular push plate that abuts against the disc (3a). The second spring (3d1) is used to apply an elastic force close to the disc (3a) to the circular push plate.

8. A rim spoke welding apparatus as defined in claim 2 wherein, The rotating rod (6c) has a curved structure.

9. A rim spoke welding apparatus as defined in claim 1 wherein, Both the upper positioning seat (11) and the lower positioning seat (12) are provided with retaining rings (14). The two retaining rings (14) have the same thickness and both retaining rings (14) are provided with bevels that fit the contour of the wheel hub (10).

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