A dual-point synchronous welding device for a part

Abstract

This invention discloses a dual-point synchronous welding device for parts, comprising a support bracket, a rotating bracket with its lower end hinged to the support bracket, a rotating bracket drive assembly fixedly mounted on one side of the support bracket, an insulating mold base fixedly mounted on the other side of the support bracket, an insulating mounting plate fixedly mounted on the upper end of the rotating bracket, a transformer fixedly mounted on the upper surface of the insulating mounting plate, fixed parts of a positive and negative telescopic component fixedly mounted on the insulating mounting plate, a positive welding head fixedly mounted on the output end of the positive telescopic component and electrically connected to the transformer, and a negative welding head fixedly mounted on the negative welding head. The positive and negative welding heads respectively mate with welding holes on the parts to be welded. Under the action of the positive and negative telescopic components, one positive welding head and one negative welding head simultaneously contact and weld with the parts to be welded, thus enabling simultaneous welding of two joints and effectively improving welding efficiency.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of welding equipment, in particular to a double-point synchronous welding device for parts. BACKGROUND

[0002] Some thin-walled parts on the automobile need to be connected by bolts, and during the process of screwing nuts on the bolts, the bolts may rotate together. Since the inside of the thin-walled part is not convenient for tool use, the bolts need to be welded on the thin-walled part, so as to prevent the bolts from rotating on the thin-walled part. The welding method in the prior art is to weld one by one by a robot, and when the number of bolts to be welded on the thin-walled part is large, the single welding method is still prone to reduce the welding efficiency. SUMMARY

[0003] The present application aims at overcoming the deficiencies of the prior art and providing a double-point synchronous welding device for parts.

[0004] The purpose of the present application is achieved by the following technical solutions:

[0005] A double-point synchronous welding device for parts, comprising a bearing support, a rotating support, an insulating mounting plate, an insulating mold base, a transformer, a positive electrode telescopic part, a negative electrode telescopic part, a positive electrode welding head, a negative electrode welding head and a rotating frame driving assembly, the lower end of the rotating support is hingedly arranged on the bearing support, the rotating frame driving assembly is fixedly arranged on one side of the bearing support and the output end is hingedly connected with the upper end of the rotating support, the insulating mold base is fixedly arranged on the other side of the bearing support and is used for mounting a welding part, the insulating mounting plate is fixedly arranged on the upper end of the rotating support, the transformer is fixedly arranged on the upper surface of the insulating mounting plate, the fixed parts of the positive electrode telescopic part and the negative electrode telescopic part are fixedly arranged on the lower surface of the insulating mounting plate, and the positive electrode telescopic part and the negative electrode telescopic part are arranged one by one, the positive electrode welding head is fixedly arranged on the output end of the positive electrode telescopic part and is electrically connected with the transformer, the negative electrode welding head is fixedly arranged on the negative electrode welding head, and the positive electrode welding head and the negative electrode welding head are respectively matched with the welding holes on the welding part.

[0006] Further, the rotating frame driving assembly comprises a rotating driving piece, a rotating shaft, a swing rod, an auxiliary connecting rod, a limiting sleeve, an adjusting rod and a hinged end head, the rotating shaft is rotationally arranged on the bearing support, the rotating driving piece is fixedly arranged on the bearing support and has an output end connected in transmission with one end of the rotating shaft, one end of the swing rod is fixed on the rotating shaft, the other end of the swing rod is hinged with one end of the auxiliary connecting rod, the other end of the auxiliary connecting rod is fixedly provided with the limiting sleeve, the adjusting rod is slidably arranged in the limiting sleeve, the adjusting rod is fixedly connected with one end of the hinged end head, the other end of the hinged end head is hingedly arranged on the upper end of the rotating support, and the end of the adjusting rod is provided with an anti-loosening nut threadedly matched with the limiting sleeve.

[0007] Further, the limiting sleeve is provided with a buffer cavity, and the buffer cavity is provided with a buffer ring matched with the buffer cavity, and the buffer ring is sleeved on the adjusting rod.

[0008] Further, the other end of the rotating shaft is fixedly provided with a speed reduction wheel, the speed reduction wheel is provided with a positive speed reduction contact block and a reverse speed reduction contact block, the positive speed reduction contact block and the reverse speed reduction contact block are arranged on the two sides of the speed reduction wheel respectively, the positive speed reduction contact block and the reverse speed reduction contact block are matched with a contact switch, and the contact switch is fixedly arranged on the bearing support.

[0009] Further, the upper end of the rotating support is fixedly provided with a locking mounting plate, one end of the locking mounting plate is connected with a fixed part of a locking cylinder, an output part of the locking cylinder is hingedly connected with a middle part of a locking block, one end of the locking block is hingedly connected with a buffer block, the buffer block is fixedly arranged on the other end of the locking mounting plate, the buffer block is matched with one side surface of a limiting plate, the other end of the locking block is matched with the other side surface of the limiting plate, and the limiting plate is fixedly arranged on the upper end of the bearing support.

[0010] Further, a roller is rotationally arranged on the locking block, and the roller is provided with a rolling wheel matched with the limiting plate.

[0011] Further, the locking mounting plate is provided with a detection support, the detection support is provided with a first detection sensor and a second detection sensor, and the first detection sensor and the second detection sensor are matched with a detection end head fixedly arranged on the locking block.

[0012] Further, the insulating mounting plate is fixedly provided with a positive copper plate and a negative copper plate, the positive copper plate is electrically connected with the transformer, the positive copper plate is electrically connected with the positive welding head through a positive copper bar, and the negative copper plate is electrically connected with the negative welding head through a negative copper bar.

[0013] Furthermore, a buffer platform that cooperates with the rotating bracket is fixedly provided on the supporting bracket, and the buffer platform is disposed between the rotating bracket and the rotating frame drive assembly.

[0014] Furthermore, the rotating bracket is rotatably mounted on the bearing bracket via a bearing shaft.

[0015] The beneficial effects of this invention are:

[0016] 1) In this technology, under the action of the positive electrode telescopic component and the negative electrode telescopic component, a positive electrode welding head and a negative electrode welding head simultaneously come into contact with the welding parts and perform welding. This allows for welding of two welding points at the same time, effectively improving welding efficiency.

[0017] 2) In this technology, under the action of the buffer ring, the impact force generated when the rotating bracket stops rotating is reduced on the rotating shaft, so that the rotating shaft will not be deformed or even damaged due to impact.

[0018] 3) In this technology, the distance between the upper end of the bearing bracket and the upper end of the rotating bracket can be easily adjusted by the limiting sleeve, adjusting rod and anti-loosening nut. Attached Figure Description

[0019] Figure 1 This is the three-dimensional structure of the welding apparatus. Figure One ;

[0020] Figure 2 This is the three-dimensional structure of the welding apparatus. Figure Two ;

[0021] Figure 3 This is a diagram showing the connection structure of the positive and negative telescopic components on the insulating mounting plate.

[0022] Figure 4 This is a diagram showing the connection structure between the locking mounting plate and the locking cylinder.

[0023] Figure 5 This is a diagram showing the connection structure between the reduction gear and the contact switch;

[0024] Figure 6 This is a diagram showing the connection structure between the limiting sleeve and the adjusting rod;

[0025] In the diagram, 1-bearing bracket, 2-rotating bracket, 3-insulating mounting plate, 4-insulating mold base, 5-transformer, 6-positive telescopic component, 7-negative telescopic component, 8-positive welding head, 9-negative welding head, 10-welding part, 11-rotation drive component, 12-rotating shaft, 13-swing rod, 14-auxiliary connecting rod, 15-limit sleeve, 16-adjusting rod, 17-hinged end, 18-anti-loosening nut, 19-buffer cavity, 20-buffer ring, 21-reduction wheel, 2 2-Positive deceleration contact block, 23-Reverse deceleration contact block, 24-Contact switch, 25-Locking mounting plate, 26-Locking cylinder, 27-Locking block, 28-Buffer block, 29-Limit plate, 30-Roller, 31-Roller, 32-Detection bracket, 33-First detection sensor, 34-Second detection sensor, 35-Detection end, 36-Positive copper plate, 37-Negative copper plate, 38-Positive copper busbar, 39-Negative copper busbar, 40-Buffer platform, 41-Bearing shaft. Detailed Implementation

[0026] The technical solution of the present invention will be clearly and completely described below with reference to the embodiments. 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.

[0027] See Figures 1-6 The present invention provides a technical solution:

[0028] A dual-point synchronous welding device for parts includes a support bracket 1, a rotating bracket 2, an insulating mounting plate 3, an insulating mold base 4, a transformer 5, a positive telescopic component 6, a negative telescopic component 7, a positive welding head 8, a negative welding head 9, and a rotating frame drive assembly. The lower end of the rotating bracket 2 is hinged to the support bracket 1. The rotating frame drive assembly is fixedly mounted on one side of the support bracket 1, and its output end is hinged to the upper end of the rotating bracket 2. The insulating mold base 4 is fixedly mounted on the other side of the support bracket 1 and is used to mount the welding part 10. The insulating mounting plate 3 is fixedly mounted on the upper end of the rotating bracket 2. The transformer 5 is fixedly mounted on the upper surface of the insulating mounting plate 3. The fixing parts of the positive telescopic component 6 and the negative telescopic component 7 are fixedly mounted on the lower surface of the insulating mounting plate 3, and the positive telescopic component 6 and the negative telescopic component 7 are arranged in a one-to-one correspondence. The positive welding head 8 is fixedly mounted on the output end of the positive telescopic component 6 and is electrically connected to the transformer 5. The negative welding head 9 is fixedly mounted on the negative welding head 9. The positive welding head 8 and the negative welding head 9 respectively mate with the welding holes on the welding part 10. The rotating bracket 2 is rotatably mounted on the bearing bracket 1 via the bearing shaft 41. The bearing bracket 1 is used to mount the rotating bracket 2, the insulating mold base 4, and the rotating frame drive assembly. The rotating frame drive assembly drives the rotating bracket 2 to rotate around the bearing shaft 41. The insulating mold base 4 mounts the welding parts 10 to be welded. Both the insulating mold base 4 and the insulating mounting plate 3 are composed of a metal plate and an insulating layer. The welding parts 10 in the insulating mold base 4 are mounted on the metal plate after passing through the insulating layer. In the insulating mounting plate 3, the positive telescopic component 6 and the negative telescopic component 7 are fixed to the metal plate through the insulating layer. The metal plate is fixed to the rotating bracket 2. The insulating mounting plate 3 mounts the transformer 5, the positive telescopic component 6, and the negative telescopic component 7, which are pneumatic cylinders in the prior art. The pneumatic cylinders are controlled by solenoid valves in the prior art. The solenoid valves, the rotating frame drive assembly, and the transformer 5 are all electrically connected to and controlled by the control center in the prior art, achieving automated production under the control of the control center. The insulating mounting plate 3 is provided with multiple sets of welding expansion joints. Each set of welding expansion joints includes a positive expansion joint 6 and a negative expansion joint 7. During welding, only one set of welding expansion joints works. The positive welding head 8 on the positive expansion joint 6 and the negative welding head 9 on the negative expansion joint 7 simultaneously contact the welding part 10, so that two bolts can be welded to the welding part 10 at the same time.

[0029] In some embodiments, the rotating frame drive assembly includes a rotating drive component 11, a rotating shaft 12, a swing rod 13, an auxiliary connecting rod 14, a limiting sleeve 15, an adjusting rod 16, and a hinged end 17. The rotating shaft 12 is rotatably mounted on the support bracket 1. The rotating drive component 11 is fixedly mounted on the support bracket 1 and its output end is connected to one end of the rotating shaft 12. One end of the swing rod 13 is fixedly mounted on the rotating shaft 12, and the other end of the swing rod 13 is hinged to one end of the auxiliary connecting rod 14. A limiting sleeve 15 is fixedly mounted on the other end of the auxiliary connecting rod 14. An adjusting rod 16 is slidably mounted inside the limiting sleeve 15. The adjusting rod 16 is fixedly connected to one end of the hinged end 17, and the other end of the hinged end 17 is hinged to the upper end of the rotating bracket 2. An anti-loosening nut 18 that is threadedly engaged with the limiting sleeve 15 is provided on the end of the adjusting rod 16. The rotary drive component 11 is a motor as in the prior art, electrically connected to the control center. The control center controls the rotary drive component 11 to rotate forward or backward. When the rotary drive component 11 is working, it drives the rotating shaft 12 to rotate. The swing rod 13 is fixed on the rotating shaft 12 and swings. The swing rod 13 drives the rotating bracket 2 to rotate around the bearing shaft 41 through the auxiliary connecting rod 14, the limiting sleeve 15, the adjusting rod 16, and the hinged end 17. The anti-loosening nut 18 is threadedly engaged with the adjusting rod 16, so that the distance is adjusted on the limiting sleeve 15, so that the upper end of the bearing bracket 1 and the upper end of the rotating bracket 2 are in contact.

[0030] In some embodiments, a buffer cavity 19 is provided inside the limiting sleeve 15, and a buffer ring 20 that cooperates with the buffer cavity 19 is provided inside the buffer cavity 19. The buffer ring 20 is sleeved on the adjusting rod 16. The buffer ring 20 is a buffer ring in the prior art. Under the action of the buffer ring 20, the impact force generated when the rotating bracket 2 stops rotating is reduced on the rotating shaft 12, so as not to cause the rotating shaft 12 to be deformed or even damaged due to impact.

[0031] In some embodiments, a reduction wheel 21 is fixedly mounted on the other end of the rotating shaft 12. A positive reduction contact block 22 and a negative reduction contact block 23 are mounted on the reduction wheel 21, respectively positioned on both sides of the reduction wheel 21. Both the positive and negative reduction contact blocks 22 and 23 cooperate with a contact switch 24, which is fixedly mounted on the support bracket 1. The rotating bracket 2 swings around the support shaft 41. During the swing, the rotating bracket 2 requires the rotation drive 11 to output a large amount of power, and it needs to stop on both sides of the swing. If the same power is continuously output before stopping, the rotating bracket 2 will experience a large impact force when it stops. Therefore, controlling the rotation drive 11 to reduce the power output before stopping can reduce the impact force. The contact switch 24 is existing technology and is electrically connected to the control center. When the reduction wheel 21 rotates forward, the forward reduction contact block 22 contacts the contact switch 24, and the control center controls the rotary drive component 11 to reduce the power output. When the reduction wheel 21 rotates in reverse, the reverse reduction contact block 23 contacts the contact switch 24, and the control center controls the rotary drive component 11 to reduce the power output, thereby reducing the impact force.

[0032] In some embodiments, a locking mounting plate 25 is fixedly disposed on the upper end of the rotating bracket 2. One end of the locking mounting plate 25 intersects with the fixing part of the locking cylinder 26. The output part of the locking cylinder 26 is hinged to the middle part of the locking block 27. One end of the locking block 27 is hinged to the buffer block 28. The buffer block 28 is fixedly disposed on the other end of the locking mounting plate 25. The buffer block 28 cooperates with one side of the limiting plate 29. The other end of the locking block 27 cooperates with the other side of the limiting plate 29. The limiting plate 29 is fixedly disposed on the upper end of the bearing bracket 1. A roller 30 is rotatably disposed on the locking block 27. A roller 31 that cooperates with the limiting plate 29 is disposed on the roller 30. The locking mounting plate 25 is fixed to the rotating bracket 2 to mount the locking cylinder 26 and the buffer block 28. The locking cylinder 26 is a pneumatic or hydraulic cylinder in the prior art, controlled by a solenoid valve in the prior art. The solenoid valve is electrically connected to and controlled by the control center. The function of the locking cylinder 26 is to drive the locking block 27 to rotate on the buffer block 28. When the locking block 27 is locked, the rollers 31 on both the buffer block 28 and the locking block 27 are in contact with the limiting plate 29. At this time, the bearing bracket 1 and the rotating bracket 2 are fixedly connected together and partially separated. When the locking block 27 is opened, the rollers 31 are not in contact with the limiting plate 29, and the upper ends of the bearing bracket 1 and the rotating bracket 2 can be separated.

[0033] In some embodiments, a detection bracket 32 ​​is provided on the locking mounting plate 25, and a first detection sensor 33 and a second detection sensor 34 are provided on the detection bracket 32. Both the first detection sensor 33 and the second detection sensor 34 cooperate with the detection end 35 fixedly provided on the locking block 27. The first detection sensor 33 and the second detection sensor 34 are both laser detection sensors in the prior art and are electrically connected to the control center. The first detection sensor 33 is located near the fixed part of the locking cylinder 26. When the first detection sensor 33 detects the detection end 35, the roller 31 separates from the limit plate 29, and the first detection sensor 33 transmits the limit signal to the control center. The control center can control the rotary drive 11 to drive the rotating bracket 2 to rotate. When the second detection sensor 34 detects the detection end 35, the roller 31 contacts the limit plate 29, the rotating bracket 2 is fixed together with the bearing bracket 1, and the second detection sensor 34 transmits the limit signal to the control center. The control center can control the positive telescopic component 6 and the negative telescopic component 7 to work for welding.

[0034] In some embodiments, a positive copper plate 36 and a negative copper plate 37 are fixedly disposed on the insulating mounting plate 3. The positive copper plate 36 is electrically connected to the transformer 5 and is electrically connected to the positive welding head 8 through the positive copper busbar 38. The negative copper plate 37 is electrically connected to the negative welding head 9 through the negative copper busbar 39. The positive copper plate 36 is connected to the positive terminal of the power supply through the transformer 5, and the negative copper plate 37 is connected to the negative terminal of the power supply. All positive welding heads 8 are connected to the positive copper plate 36 through the positive copper busbar 38, and all negative welding heads 9 are connected to the negative copper plate 37 through the negative copper busbar 39. The positive copper busbar 38 and the negative copper plate 37 not only achieve full conductivity but also facilitate bending for installation and allow the positive telescopic component 6 and the negative telescopic component 7 to move the positive welding head 8 and the negative welding head 9 respectively for welding.

[0035] In some embodiments, a buffer platform 40 that cooperates with the rotating bracket 2 is fixedly disposed on the support bracket 1, and the buffer platform 40 is disposed between the rotating bracket 2 and the rotating frame drive assembly. After welding is completed, the rotating frame drive assembly needs to drive the rotating bracket 2 to rotate, thereby loosening the welded part 10. During rotation, the rotating frame drive assembly applies a large force to the rotating bracket 2. When the rotating bracket 2 stops, it will impact the rotating frame drive assembly, which can easily lead to damage. The buffer platform 40 is provided to bear the impact force of the rotating bracket 2, thus preventing damage to the rotating frame drive assembly.

[0036] In the description of this invention, it should be understood that the terms "upper", "lower", "bottom", "one end", "top", "middle", "other end", "coaxial", "one side", "inner", "front", "center", "both ends", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing this invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention.

[0037] In this invention, unless otherwise explicitly specified and limited, the terms "set", "install", "connect", "fix", "hinged", etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0038] The above description is merely a preferred embodiment of the present invention. It should be understood that the present invention is not limited to the forms disclosed herein and should not be construed as excluding other embodiments. It can be used in various other combinations, modifications, and environments, and can be altered within the scope of the concept described herein through the above teachings or related technologies or knowledge. Modifications and variations made by those skilled in the art that do not depart from the spirit and scope of the present invention should be within the protection scope of the appended claims.

Claims

1. A dual-point synchronous welding device for parts, characterized in that: The system includes a support bracket (1), a rotating bracket (2), an insulating mounting plate (3), an insulating mold base (4), a transformer (5), a positive telescopic component (6), a negative telescopic component (7), a positive welding head (8), a negative welding head (9), and a rotating frame drive assembly. The lower end of the rotating bracket (2) is hinged to the support bracket (1). The rotating frame drive assembly is fixedly mounted on one side of the support bracket (1) and its output end is hinged to the upper end of the rotating bracket (2). The insulating mold base (4) is fixedly mounted on the other side of the support bracket (1) and is used to install welding parts (10). The insulating mounting plate (3) is fixedly mounted on the rotating bracket. On the upper end of the frame (2), the transformer (5) is fixedly installed on the upper surface of the insulating mounting plate (3), the fixing parts of the positive telescopic component (6) and the negative telescopic component (7) are fixedly installed on the lower surface of the insulating mounting plate (3), and the positive telescopic component (6) and the negative telescopic component (7) are arranged in a one-to-one correspondence. The positive welding head (8) is fixedly installed on the output end of the positive telescopic component (6) and electrically connected to the transformer (5). The negative welding head (9) is fixedly installed on the negative telescopic component (7). The positive welding head (8) and the negative welding head (9) respectively cooperate with the welding holes on the welding parts (10). The rotating frame drive assembly includes a rotary drive component (11), a rotating shaft (12), a swing rod (13), an auxiliary connecting rod (14), a limiting sleeve (15), an adjusting rod (16), and a hinged end (17). The rotating shaft (12) is rotatably mounted on the bearing support (1). The rotary drive component (11) is fixedly mounted on the bearing support (1), and its output end is connected to one end of the rotating shaft (12). One end of the swing rod (13) is fixed on the rotating shaft (12). The other end is hinged to one end of the auxiliary connecting rod (14). The limiting sleeve (15) is fixedly provided on the other end of the auxiliary connecting rod (14). The adjusting rod (16) is slidably provided inside the limiting sleeve (15). The adjusting rod (16) is fixedly connected to one end of the hinge end (17). The other end of the hinge end (17) is hinged to the upper end of the rotating bracket (2). The end of the adjusting rod (16) is provided with an anti-loosening nut (18) that is threadedly engaged with the limiting sleeve (15).

2. The dual-point synchronous welding device for parts according to claim 1, characterized in that: The limiting sleeve (15) is provided with a buffer cavity (19), and a buffer ring (20) that cooperates with the buffer cavity (19) is provided in the buffer cavity (19). The buffer ring (20) is sleeved on the adjusting rod (16).

3. A dual-point synchronous welding device for parts according to claim 1 or 2, characterized in that: A reduction wheel (21) is fixedly installed on the other end of the rotating shaft (12). A positive reduction contact block (22) and a negative reduction contact block (23) are provided on the reduction wheel (21). The positive reduction contact block (22) and the negative reduction contact block (23) are respectively installed on both sides of the reduction wheel (21). The positive reduction contact block (22) and the negative reduction contact block (23) are both engaged with a contact switch (24). The contact switch (24) is fixedly installed on the support bracket (1).

4. A dual-point synchronous welding device for parts according to claim 1 or 2, characterized in that: A locking mounting plate (25) is fixedly installed on the upper end of the rotating bracket (2). One end of the locking mounting plate (25) is hinged to the fixed part of the locking cylinder (26). The output part of the locking cylinder (26) is hinged to the middle part of the locking block (27). One end of the locking block (27) is hinged to the buffer block (28). The buffer block (28) is fixedly installed on the other end of the locking mounting plate (25). The buffer block (28) cooperates with one side of the limiting plate (29). The other end of the locking block (27) cooperates with the other side of the limiting plate (29). The limiting plate (29) is fixedly installed on the upper end of the bearing bracket (1).

5. The dual-point synchronous welding device for parts according to claim 4, characterized in that: The locking block (27) is rotatably provided with a roller (30), and the roller (30) is provided with a roller (31) that cooperates with the limiting plate (29).

6. The dual-point synchronous welding device for parts according to claim 4, characterized in that: The locking mounting plate (25) is provided with a detection bracket (32), and the detection bracket (32) is provided with a first detection sensor (33) and a second detection sensor (34). The first detection sensor (33) and the second detection sensor (34) are both engaged with the detection end (35) fixedly provided on the locking block (27).

7. A dual-point synchronous welding device for parts according to claim 1 or 2, characterized in that: A positive copper plate (36) and a negative copper plate (37) are fixedly disposed on the insulating mounting plate (3). The positive copper plate (36) is electrically connected to the transformer (5). The positive copper plate (36) is electrically connected to the positive welding head (8) through the positive copper busbar (38). The negative copper plate (37) is electrically connected to the negative welding head (9) through the negative copper busbar (39).

8. A dual-point synchronous welding device for parts according to claim 1 or 2, characterized in that: A buffer platform (40) that cooperates with the rotating bracket (2) is fixedly provided on the bearing support (1). The buffer platform (40) is located between the rotating bracket (2) and the rotating frame drive assembly.

9. A dual-point synchronous welding device for parts according to claim 1 or 2, characterized in that: The rotating bracket (2) is rotatably mounted on the bearing bracket (1) via the bearing shaft (41).

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