A fixture for integral welding of multiple accessories

Abstract

The present application relates to the field of welding processing of automobile parts, and in particular to a fixture for integral welding of multiple accessories, the fixture comprising a frame, a fixture and a detection device, the frame being used to place and position the accessories, the fixture being rotatably connected to the frame, the fixture being used to fix the accessories in the frame, the detection device being used to detect the position of the accessories, and the detection device being used to control a welding robot to perform welding; the detection device comprising a direct detection device and an indirect detection device, the direct detection device being used to directly detect the position of the accessories, the indirect detection device comprising an active detection device and a passive detection device, the passive detection device being connected to the fixture, the passive detection device being used to detect the position of the accessories as the fixture rotates, the active detection device being fixedly connected to the frame, the active detection device being driven by a power source to detect the position of the accessories, thereby achieving the effect of reducing the unqualified rate of finished automobile parts welding products.

Description

Technical Field

[0001] The present application relates to the field of welding processing of automobile parts, and in particular to a fixture for integrally welding multiple parts. Background Art

[0002] Currently, when welding auto parts, in order to ensure the stability of the auto parts during welding, it is often necessary to use clamping equipment to clamp and fix the auto parts.

[0003] Existing automotive parts welding typically involves welding multiple components together into a single unit. Therefore, a welding fixture is required to position and clamp these components. Using the welding fixture, multiple components must be placed sequentially into the fixture, then activated to secure them, and then a robotic arm is used to weld the joints. While placing components, workers must check for any missing parts. Missing parts can render the welded auto part useless and unusable.

[0004] The above-mentioned existing technical solutions have the following defects: currently, when welding multiple automobile parts, workers can only visually inspect multiple parts. Workers cannot guarantee that they will not make 100% mistakes when performing welding work, which leads to a high failure rate of finished automobile parts welding products. Summary of the Invention

[0005] In order to reduce the unqualified rate of finished welded automobile parts, the present application provides a fixture for integrally welding multiple parts.

[0006] The above technical objectives of this application are achieved through the following technical solutions:

[0007] A fixture for integral welding of multiple accessories, comprising a frame, a fixture, and a detection device. The frame is used to place and position the accessories. The fixture is rotatably connected to the frame and is used to fix the accessories in the frame. The detection device is used to detect the position of the accessories and is used to control the welding robot to perform welding.

[0008] The detection device includes a direct detection device and an indirect detection device. The direct detection device is used to directly detect the position of the accessory. The indirect detection device includes an active detection device and a passive detection device. The passive detection device is connected to the fixture. The passive detection device is used to detect the position of the spare part as the fixture rotates. The active detection device is fixedly connected to the tire frame. The active detection device uses a power source to drive the detection of the position of the spare part.

[0009] By adopting the above scheme, when welding multi-part auto parts, first move the parts to the tire frame, then rotate the clamp, and use the clamp to fix the parts in the tire frame. As the clamp contacts the parts, the direct detection device abuts against the large-sized parts to detect whether the parts are installed in the tire frame. The passive detection device abuts against the small-sized parts as the clamp moves, and uses sensors to indirectly detect the position of the small-sized parts. Finally, the power source is started to drive the active detection device to perform indirect detection on the small-sized parts. By setting up the detection device to detect parts of various sizes, it is no longer necessary to rely solely on the visual operation of workers, thereby achieving the purpose of reducing the unqualified rate of finished auto parts welding products.

[0010] Furthermore, the direct detection device includes a fixing plate and a first sensor, the fixing plate is fixedly connected to the tire frame or the clamp, the first sensor is fixedly connected to the fixing plate, and one end of the first sensor for detection abuts against the accessory.

[0011] By adopting the above solution, when a large-sized spare part is placed in the tire frame, the first sensor contacts the spare part, so that the first sensor detects that the spare part has been placed here. Since the position where the large-sized spare part is detected can be far away from the welding position, the first sensor can be directly brought into contact with the large-sized spare part.

[0012] Furthermore, the passive detection device includes a mounting plate, a second sensor and an elastic detection rod. The mounting plate is fixedly connected to the clamp, the second sensor is fixedly connected to the mounting plate, the elastic detection rod is arranged at one end of the second sensor, and the elastic detection rod is slidably connected to the clamp. When the accessory is placed in the detection position, the clamp drives the elastic detection rod away from one end of the second sensor for abutting against the accessory, and the elastic detection rod slides relative to the clamp and abuts against the second sensor.

[0013] Furthermore, the elastic detection rod includes an end piece, a rod body, an elastic member and a blocking piece. A through hole is opened on the clamp, one end of the rod body passes through the through hole, the end piece is arranged between the second sensor and the clamp, the end piece is fixedly connected to the rod body, the blocking piece is arranged at the end of the clamp away from the second sensor, the blocking piece is fixedly connected to the rod body, the elastic member is sleeved on the outside of the rod body, the elastic member is located between the clamp and the blocking piece, and the two ends of the elastic member are respectively fixedly connected to the clamp and the blocking piece. When the rod body detects the accessory, the rod body slides in the direction close to the second sensor to drive the end piece to abut against the second sensor.

[0014] Furthermore, the rod body includes a contact section, an insulation section and a connecting section, the connecting section is fixedly connected to both the end piece and the blocking piece, the contact section is arranged on the side of the connecting section away from the end piece, the contact section is used to abut against the accessory, the insulation section is arranged between the contact section and the connecting section, and the two ends of the insulation section are fixedly connected to the contact section and the connecting section respectively.

[0015] By adopting the above scheme, when a passive detection device is used, if there are spare parts here, as the clamp rotates, the clamp drives the contact section of the elastic detection rod to abut against the small-sized spare parts, and the spare parts cause the contact section to drive the blocking piece to approach the mounting plate. At this time, the blocking piece pushes the elastic part to compress, and the elastic detection rod drives the end piece to abut against the second sensor. As the second sensor abuts against the end piece, the second sensor can indirectly detect the spare parts set here through the elastic detection rod. When there are no spare parts here, the elastic detection rod cannot compress the spring to drive the end piece to bounce upward, so that the end piece cannot abut against the second sensor. At this time, the second sensor controls the welding robot not to start; when the robot arm welds the small-sized spare parts, since the contact section abuts against the spare parts, the contact section is subjected to high temperature, but when the heat is transferred to the insulation section, the heat is blocked by the insulation section and cannot be completely transferred to the connecting section. The connecting section is fixedly connected to the end piece, so the end piece will not be subjected to the high temperature of welding, thereby protecting the second sensor from the high temperature of welding and improving the service life of the second sensor.

[0016] Furthermore, the active detection device includes a mounting bracket, a positioning rod, a positioning ring, a third sensor and a first driving member. The mounting bracket is fixedly connected to the tire frame, the first driving member is fixedly connected to the mounting bracket, the telescopic rod of the first driving member is fixedly connected to the positioning rod, the positioning rod is slidingly connected to the mounting bracket, the third sensor is fixedly connected to the mounting bracket, the positioning ring is fixedly connected to the positioning rod, and when the end of the positioning rod away from the first driving member passes through the mounting bracket and abuts against the accessory, the third sensor abuts against the positioning ring.

[0017] Furthermore, the positioning ring includes an inner ring and an outer ring, the inner ring is sleeved on the outside of the positioning rod, the inner ring is fixedly connected to the positioning rod, the inner ring is made of heat insulation material, the outer ring is sleeved on the outside of the inner ring, the outer ring is fixedly connected to the inner ring, and the outer ring is in contact with the third sensor.

[0018] Furthermore, the mounting bracket includes a vertical plate, a U-shaped plate and an L-shaped plate, the vertical plate is vertically arranged, the vertical plate is fixedly connected to the tire frame, the U-shaped plate is horizontally arranged at the top end of the vertical plate, the first driving member and the positioning rod are respectively arranged on the two side plates of the U-shaped plate, the first driving member is fixedly connected to the U-shaped plate, the positioning rod is slidingly connected to the U-shaped plate, the positioning ring is arranged in the U-shaped plate, the positioning ring is fixedly connected to the positioning rod, the L-shaped plate is arranged at one end of the U-shaped plate away from the vertical plate, the L-shaped plate is fixedly connected to the third sensor, and the L-shaped plate is used to make the third sensor located in the U-shaped plate.

[0019] By adopting the above solution, when using the active detection device, if a spare part is placed in the tire frame position, the first drive member is activated to drive the positioning rod to slide within the mounting bracket. When the positioning rod detects a spare part, the positioning rod directly contacts the spare part, and the positioning rod drives the positioning ring to contact the third sensor. At this time, when the third sensor detects the presence of the spare part, it transmits a signal to the control center, which records the data and uses it to determine whether to allow the next welding step. When there is no spare part at this location, the first drive member drives the positioning rod to slide to the position where the spare part is placed. At this time, the positioning rod drives the positioning ring to slide past the third sensor so that the positioning ring does not contact the third sensor. At this time, the third sensor transmits a signal to the control center, and the control center determines that the next welding step cannot be carried out. At the same time, when the robot arm welds small-sized spare parts, because the positioning rod contacts the small-sized spare part, the positioning rod transfers heat to the inner ring. Since the inner ring is made of a heat-insulating material, the inner ring cannot transfer heat to the outer ring. The heat at the outer ring and the third sensor contact is kept at a lower temperature, thereby protecting the third sensor from the high temperature of welding and increasing the service life of the third sensor.

[0020] Furthermore, a rotating assembly is provided between the clamp and the tire frame, and the rotating assembly includes a support block, a rotating block and a second driving member. The support block is fixedly connected to the tire frame, the middle part of the rotating block is rotatably connected to the support block, one end of the rotating block is fixedly connected to the second driving member, and the other end is fixedly connected to the clamp. The second driving member is used to drive the rotating block to rotate around the support block to drive the clamp to clamp the accessory.

[0021] By adopting the above solution, when using the clamp to weld the spare parts, the second driving member is started to drive one end of the rotating block to rotate, and the rotating block drives the clamp to rotate, so that the clamp clamps the spare parts. After the welding is completed, the second driving member is started again to move in the opposite direction, so that the rotating block drives the clamp to separate from the spare parts, so that the welded spare parts can be taken out of the tire frame.

[0022] In summary, this application has the following technical effects:

[0023] 1. By setting up direct detection devices and indirect detection devices, when welding multi-component auto parts, first move the parts to the tire frame, then rotate the fixture and use the fixture to fix the parts in the tire frame. As the fixture contacts the parts, the direct detection device abuts the large-sized parts to detect whether the parts are installed in the tire frame. The passive detection device abuts the small-sized parts as the fixture moves, and uses sensors to indirectly detect the position of the small-sized parts. Finally, the power source is activated to drive the active detection device to also indirectly detect the small-sized parts. By setting up detection devices to detect parts of various sizes, it is no longer necessary to rely solely on workers' visual operation, thereby achieving the goal of reducing the rejection rate of finished auto parts welding products.

[0024] 2. By setting up a passive detection device, when using the passive detection device, if there is a spare part here, as the fixture rotates, the fixture drives the contact section of the elastic detection rod to abut against the small-sized spare part. The spare part causes the contact section to drive the blocking piece closer to the mounting plate. At this time, the blocking piece pushes the elastic member to compress, and the elastic detection rod drives the end piece to abut against the second sensor. As the second sensor abuts the end piece, the second sensor can indirectly detect the spare part installed here through the elastic detection rod;

[0025] 3. By setting up an active detection device, when using the active detection device, if the spare parts are placed on the tire frame, the first driving member is started to drive the positioning rod to slide in the mounting bracket. When the positioning rod detects that there are spare parts at the position, the positioning rod directly abuts against the spare parts, and the positioning rod drives the positioning ring to just abut against the third sensor. At this time, when the third sensor detects the presence of spare parts, it transmits the signal to the control center, and the control center records the data to determine whether the next step of welding is allowed. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is a schematic structural diagram of a fixture for integral welding of multiple accessories in the present application;

[0027] Figure 2 This application Figure 1 A partial enlarged view of part A;

[0028] Figure 3 This is a structural schematic diagram of a fixture for integral welding of multiple accessories from another angle of the present application;

[0029] Figure 4 This application Figure 3 A partial enlarged view of part B;

[0030] Figure 5 This application Figure 3 A partial enlarged view of part C in the middle.

[0031] In the figure, 1. tire frame; 2. fixture; 3. direct detection device; 31. fixing plate; 32. first sensor; 4. passive detection device; 41. mounting plate; 42. second sensor; 43. elastic detection rod; 431. end piece; 432. rod body; 4321. contact section; 4322. heat insulation section; 4323. connecting section; 433. elastic member; 434. blocking piece; 5. active detection device; 51. mounting bracket; 511. vertical plate; 512. U-shaped plate; 513. L-shaped plate; 52. positioning rod; 53. positioning ring; 531. inner ring; 532. outer ring; 54. third sensor; 55. first driving member; 6. rotating assembly; 61. support block; 62. rotating block; 63. second driving member; 7. accessories. DETAILED DESCRIPTION

[0032] The present application is further described in detail below with reference to the accompanying drawings.

[0033] Reference Figure 1 The present embodiment provides a tooling fixture for integral welding of multiple accessories, including a tire frame 1, a fixture 2 and a detection device. The tire frame 1 is used to place and position the accessory 7. A rotating component 6 is provided between the fixture 2 and the tire frame 1. The rotating component 6 is used to rotatably connect the fixture 2 to the tire frame 1 to clamp the accessory 7 placed on the tire frame 1. The fixture 2 is used to fix the accessory 7 in the tire frame 1. The detection device is used to detect the position of the accessory 7. The detection device is connected to a control center, and the control center is used to control whether the welding robot performs welding.

[0034] Reference Figure 1 The detection device includes a direct detection device 3 and an indirect detection device. The direct detection device 3 is used to directly detect the position of the accessory 7, that is, the sensor is in direct contact with the accessory 7. The direct detection device 3 is often used for position detection of large-sized accessories 7 such as pipes and plates. The detection position of such large-sized spare parts 7 can be set at a position away from the welding point to avoid the high temperature and strong light generated by welding from damaging the detection device; the indirect detection device is often used for position detection of small-sized accessories 7 such as rivets and nuts. Such small-sized accessories 7 have a small body. If the detection device is used for direct contact detection, the high temperature and strong light generated when welding the small-sized accessories 7 are easy to damage the detection device. Both the direct detection device 3 and the indirect detection device in this application can be provided with several, and adaptive adjustment can be made according to the situation of the spare parts 7 that need to be welded.

[0035] Reference Figure 1 and Figure 2 The direct detection device 3 includes a fixing plate 31 and a first sensor 32. The fixing plate 31 is fixedly connected to the tire frame 1 or the clamp 2. Figure 2The example shown in the figure is that the fixing plate 31 is fixedly connected to the clamp 2, the first sensor 32 is fixedly connected to the fixing plate 31, one end of the first sensor 32 is in contact with the accessory 7, and the first sensor 32 is connected to the control center.

[0036] Reference Figure 3 and Figure 4 The indirect detection device includes an active detection device 5 and a passive detection device 4. The passive detection device 4 is connected to the fixture 2. The passive detection device 4 is used to detect the position of the spare part 7 as the fixture 2 rotates. The active detection device 5 is fixedly connected to the tire frame 1. The active detection device 5 uses a power source to drive the detection of the position of the spare part 7.

[0037] Reference Figure 3 and Figure 4 The passive detection device 4 includes a mounting plate 41, a second sensor 42 and an elastic detection rod 43. The mounting plate 41 is fixedly connected to the fixture 2, the second sensor 42 is fixedly connected to the mounting plate 41, the second sensor 42 is connected to the control center, and the elastic detection rod 43 is arranged at one end of the second sensor 42. The elastic detection rod 43 is slidably connected to the fixture 2. When the accessory 7 is placed in the detection position, the fixture 2 drives the elastic detection rod 43 away from one end of the second sensor 42 for abutting against the accessory 7. The elastic detection rod 43 slides relative to the fixture 2 and abuts against the second sensor 42.

[0038] Reference Figure 4The elastic detection rod 43 includes an end piece 431, a rod body 432, an elastic member 433 and a blocking piece 434. A through hole is opened on the clamp 2, one end of the rod body 432 passes through the through hole, the end piece 431 is arranged between the second sensor 42 and the clamp 2, the end piece 431 is fixedly connected to the rod body 432, the blocking piece 434 is arranged at the end of the clamp 2 away from the second sensor 42, the blocking piece 434 is fixedly connected to the rod body 432, the elastic member 433 is sleeved on the outside of the rod body 432, the elastic member 433 is located between the clamp 2 and the blocking piece 434, the two ends of the elastic member 433 are respectively fixedly connected to the clamp 2 and the blocking piece 434, when the rod body 432 detects the accessory 7, the rod body 432 slides in the direction close to the second sensor 42, driving the end piece 431 to abut against the second sensor 42, and the elastic member 433 in this application is preferably a high elastic spring. The rod body 432 is reset after the clamp 2 moves away from the spare part 7; the rod body 432 includes a contact section 4321, an insulation section 4322 and a connecting section 4323, the connecting section 4323 is fixedly connected to the end piece 431 and the blocking piece 434, the contact section 4321 is arranged on the side of the connecting section 4323 away from the end piece 431, the contact section 4321 is used to abut the accessory 7, the insulation section 4322 is arranged between the contact section 4321 and the connecting section 4323, and the two ends of the insulation section 4322 are respectively fixedly connected to the contact section 4321 and the connecting section 4323. In this example, a insulation section 4322 is disclosed, and the insulation section 4322 is preferably made of a rock wool rod made of rock wool, and then by setting a plug-in block and a plug-in slot, the plug-in block is fixedly connected to the rock wool rod, and the contact section 4321 and the connecting section 4323 are both provided with a plug-in slot, and the plug-in block and the plug-in slot are interference fit.

[0039] Reference Figure 3 and Figure 5 The active detection device 5 includes a mounting bracket 51, a positioning rod 52, a positioning ring 53, a third sensor 54 and a first driving member 55. The mounting bracket 51 is fixedly connected to the tire frame 1, the first driving member 55 is fixedly connected to the mounting bracket 51, the telescopic rod of the first driving member 55 is fixedly connected to the positioning rod 52, the positioning rod 52 is slidably connected to the mounting bracket 51, the third sensor 54 is fixedly connected to the mounting bracket 51, the positioning ring 53 is fixedly connected to the positioning rod 52, and the end of the positioning rod 52 away from the first driving member 55 passes through the mounting bracket 51. When the mounting bracket 51 abuts against the accessory 7, the third sensor 54 abuts against the positioning ring 53, and the third sensor 54 is connected to the control center; the positioning ring 53 includes an inner ring 531 and an outer ring 532, the inner ring 531 is sleeved on the outside of the positioning rod 52, the inner ring 531 is fixedly connected to the positioning rod 52, the inner ring 531 is an inner ring 531 made of a heat-insulating material, such as a rock wool ring made of rock wool, the outer ring 532 is sleeved on the outside of the inner ring 531, the outer ring 532 is fixedly connected to the inner ring 531, and the outer ring 532 abuts against the third sensor 54.

[0040] Reference Figure 5The positioning ring 53 includes an inner ring 531 and an outer ring 532. The inner ring 531 is sleeved on the outside of the positioning rod 52 and is fixedly connected to the positioning rod 52. The inner ring 531 is made of a heat-insulating material. The outer ring 532 is sleeved on the outside of the inner ring 531 and is fixedly connected to the inner ring 531. The outer ring 532 is in contact with the third sensor 54.

[0041] The first sensor 32, the second sensor 42 and the third sensor 54 in this application are all connected to the control center. The control center receives the signals of the first sensor 32, the second sensor 42 and the third sensor 54. Only when the signal of each first sensor 32, the second sensor 42 and the third sensor 54 is that there is a spare part 7, can the welding robot be started for welding. As long as the signal sent back by any sensor is that there is no spare part 7, the robot cannot be started for welding.

[0042] Reference Figure 3 A rotating assembly 6 is provided between the clamp 2 and the tire frame 1. The rotating assembly 6 includes a support block 61, a rotating block 62 and a second driving member 63. The support block 61 is fixedly connected to the tire frame 1. The middle part of the rotating block 62 is rotatably connected to the support block 61. One end of the rotating block 62 is fixedly connected to the second driving member 63, and the other end is fixedly connected to the clamp 2. The second driving member 63 is used to drive the rotating block 62 to rotate around the support block 61 to drive the clamp 2 to clamp the accessory 7.

[0043] The implementation principle of the tooling fixture for integral welding of multiple accessories in the embodiment of the present application is as follows: when using the tooling fixture 2 of the present application, first move the spare part 7 to the tire frame 1. When the large-sized spare part 7 is placed in the tire frame 1, the first sensor 32 contacts the spare part 7, so that the first sensor 32 detects that the spare part 7 has been placed here, and the first sensor 32 transmits a signal to the control center, which records the data; then start the second driving member 63 to drive one end of the rotating block 62 to rotate, and the rotating block 62 drives the fixture 2 to rotate, so that the fixture 2 clamps the spare part 7 placed in the tire frame 1. As the fixture 2 rotates, the fixture 2 drives the contact section 4321 of the elastic detection rod 43 to abut against the small-sized spare part 7. The spare part 7 causes the contact section 4321 to drive the blocking piece 434 to approach the mounting plate 41. At this time, the blocking piece 434 pushes the elastic member 433 to compress, and the elastic detection rod 43 drives the end piece 431 to abut against the second sensor 42. As the second sensor 42 abuts against the end piece 431, the second sensor 4 2 The spare part 7 set here can be indirectly detected by the elastic detection rod 43, and the second sensor 42 transmits a signal to the control center, which records the data; finally, the first driving member 55 is started to drive the positioning rod 52 to slide in the mounting bracket 51. When the positioning rod 52 detects that there is a spare part 7 at the position, the positioning rod 52 directly abuts against the spare part 7, and the positioning rod 52 drives the positioning ring 53 to just abut against the third sensor 54. At this time, when the third sensor 54 detects the presence of the spare part 7, it transmits a signal to the control center, which records the data; when the control center judges the data, if it is found that all the sensors return data that there is a spare part 7, then the welding robot will be started for welding; if it is found that any sensor returns a signal that there is no spare part 7, the robot cannot be started for welding. By setting up the detection device to detect spare parts 7 of various sizes, it is no longer necessary to rely solely on the visual operation of the workers, thereby achieving the purpose of reducing the unqualified rate of finished welded automobile parts 7.

[0044] This specific embodiment is merely an explanation of the present application and is not a limitation of the present application. After reading this specification, those skilled in the art may make non-creative modifications to the present embodiment as needed, but as long as they are within the scope of the claims of the present application, they are protected by the patent law.

Claims

1. A fixture for integral welding of multiple accessories, characterized by: The invention comprises a tire frame (1), a fixture (2) and a detection device, wherein the tire frame (1) is used to place an accessory (7) and position the accessory (7), the fixture (2) is rotatably connected to the tire frame (1), the fixture (2) is used to fix the accessory (7) in the tire frame (1), the detection device is used to detect the position of the accessory (7), and the detection device is used to control the welding robot to perform welding; The detection device comprises a direct detection device (3) and an indirect detection device, wherein the direct detection device (3) is used to directly detect the position of the accessory (7), and the indirect detection device comprises an active detection device (5) and a passive detection device (4), wherein the passive detection device (4) is connected to the clamp (2), and the passive detection device (4) is used to detect the position of the accessory (7) as the clamp (2) rotates, and the active detection device (5) is fixedly connected to the tire frame (1), and the active detection device (5) is driven by a power source to detect the position of the accessory (7); The active detection device (5) comprises a mounting bracket (51), a positioning rod (52), a positioning ring (53), a third sensor (54) and a first driving member (55); the mounting bracket (51) is fixedly connected to the tire frame (1); the first driving member (55) is fixedly connected to the mounting bracket (51); the telescopic rod of the first driving member (55) is fixedly connected to the positioning rod (52); the positioning rod (52) is slidably connected to the mounting bracket (51); the third sensor (54) is fixedly connected to the mounting bracket (51); the positioning ring (53) is fixedly connected to the positioning rod (52); when one end of the positioning rod (52) away from the first driving member (55) passes through the mounting bracket (51) and abuts against the accessory (7), the third sensor (54) abuts against the positioning ring (53); The mounting bracket (51) includes a vertical plate (511), a U-shaped plate (512) and an L-shaped plate (513). The vertical plate (511) is vertically arranged and fixedly connected to the tire frame (1). The U-shaped plate (512) is horizontally arranged at the top of the vertical plate (511). The first driving member (55) and the positioning rod (52) are respectively arranged on the two side plates of the U-shaped plate (512). The first driving member (55) is fixedly connected to the U-shaped plate (512). The positioning rod (52) is slidably connected to the U-shaped plate (512), the positioning ring (53) is arranged in the U-shaped plate (512), the positioning ring (53) is fixedly connected to the positioning rod (52), the L-shaped plate (513) is arranged at one end of the U-shaped plate (512) away from the vertical plate (511), the L-shaped plate (513) is fixedly connected to the third sensor (54), and the L-shaped plate (513) is used to make the third sensor (54) located in the U-shaped plate (512).

2. The fixture for integral welding of multiple accessories according to claim 1, characterized in that: The direct detection device (3) comprises a fixing plate (31) and a first sensor (32); the fixing plate (31) is fixedly connected to the tire frame (1) or the clamp (2); the first sensor (32) is fixedly connected to the fixing plate (31); and one end of the first sensor (32) for detection abuts against the accessory (7).

3. The fixture for integral welding of multiple accessories according to claim 1, characterized in that: The passive detection device (4) comprises a mounting plate (41), a second sensor (42) and an elastic detection rod (43); the mounting plate (41) is fixedly connected to the clamp (2); the second sensor (42) is fixedly connected to the mounting plate (41); the elastic detection rod (43) is arranged at one end of the second sensor (42); the elastic detection rod (43) is slidably connected to the clamp (2); when the accessory (7) is placed in the detection position, the clamp (2) drives the elastic detection rod (43) away from one end of the second sensor (42) for contact with the accessory (7); the elastic detection rod (43) slides relative to the clamp (2) and contacts the second sensor (42).

4. The fixture for integral welding of multiple accessories according to claim 3, characterized in that: The elastic detection rod (43) comprises an end piece (431), a rod body (432), an elastic member (433) and a blocking piece (434). A through hole is provided on the clamp (2), one end of the rod body (432) passes through the through hole, the end piece (431) is arranged between the second sensor (42) and the clamp (2), the end piece (431) is fixedly connected to the rod body (432), the blocking piece (434) is arranged at one end of the clamp (2) away from the second sensor (42), and the blocking piece (43 4) is fixedly connected to the rod body (432), the elastic member (433) is sleeved on the outside of the rod body (432), the elastic member (433) is located between the clamp (2) and the blocking piece (434), and the two ends of the elastic member (433) are fixedly connected to the clamp (2) and the blocking piece (434), respectively. When the rod body (432) detects the accessory (7), the rod body (432) slides in a direction close to the second sensor (42) to drive the end piece (431) to abut against the second sensor (42).

5. The fixture for integral welding of multiple accessories according to claim 4, characterized in that: The rod body (432) comprises a contact section (4321), a heat-insulating section (4322) and a connecting section (4323); the connecting section (4323) is fixedly connected to both the end piece (431) and the blocking piece (434); the contact section (4321) is arranged on a side of the connecting section (4323) away from the end piece (431); the contact section (4321) is used to abut against the accessory (7); the heat-insulating section (4322) is arranged between the contact section (4321) and the connecting section (4323); and the two ends of the heat-insulating section (4322) are fixedly connected to the contact section (4321) and the connecting section (4323), respectively.

6. The fixture for integral welding of multiple accessories according to claim 1, characterized in that: The positioning ring (53) comprises an inner ring (531) and an outer ring (532). The inner ring (531) is sleeved on the outside of the positioning rod (52). The inner ring (531) is fixedly connected to the positioning rod (52). The inner ring (531) is made of a heat-insulating material. The outer ring (532) is sleeved on the outside of the inner ring (531). The outer ring (532) is fixedly connected to the inner ring (531), and the outer ring (532) abuts against the third sensor (54).

7. The fixture for integral welding of multiple parts according to claim 1, characterized in that: A rotating assembly (6) is provided between the clamp (2) and the tire frame (1), and the rotating assembly (6) comprises a support block (61), a rotating block (62) and a second driving member (63). The support block (61) is fixedly connected to the tire frame (1), the middle portion of the rotating block (62) is rotatably connected to the support block (61), one end of the rotating block (62) is fixedly connected to the second driving member (63), and the other end is fixedly connected to the clamp (2). The second driving member (63) is used to drive the rotating block (62) to rotate around the support block (61) to drive the clamp (2) to clamp the accessory (7).

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