A kind of electric power-assisted bicycle accessory welding alignment turnover device

Abstract

The application belongs to the technical field of electric moped accessory welding, in particular to a positioning and overturning device for electric moped accessory welding; comprising: a welding robot, which can weld a rim and spokes together; the positioning and overturning device for electric moped accessory welding further comprises: an assembly overturning unit, the assembly overturning unit can carry the rim and spokes, and assemble the rim and spokes for the welding robot to weld, thereby reducing the working intensity of workers; and the rim and spokes are overturned during welding to realize front and back surface welding and increase the firmness of welding; then the welded rim and spokes are transported.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of electric moped accessory welding, in particular to a positioning and overturning device for electric moped accessory welding. BACKGROUND

[0002] The hub is an important accessory of the electric moped, and the steel hub is widely used because of its high structural strength, strong impact resistance and suitability for complex road conditions.

[0003] When welding the rim and the spoke together, manual welding is often required, which has the problems of high work intensity, low efficiency, and poor welding precision caused by unstable fixation.

[0004] Therefore, the application provides a positioning and overturning device for electric moped accessory welding to solve the above technical problems. SUMMARY

[0005] To make up for the shortcomings of the prior art, the rim and the spoke can be carried and assembled for welding by the welding robot, and the rim and the spoke are overturned during welding to realize front and back welding.

[0006] The technical solution adopted by the application to solve the technical problems is: a positioning and overturning device for electric moped accessory welding, comprising: a welding robot capable of welding the rim and the spoke together; the positioning and overturning device for electric moped accessory welding further comprises: an assembly overturning unit, which can carry the rim and the spoke and assemble them for welding by the welding robot, reducing the work intensity of workers; and overturn the rim and the spoke during welding to realize front and back welding, increasing the firmness of welding; then transport the welded rim and spoke.

[0007] Preferably, the assembling and overturning unit comprises a support frame, the top of the support frame is fixedly provided with two first conveying belts, the two first conveying belts are arranged at intervals and the intervals form a welding area; two second conveying belts are fixedly arranged on the support frame below the first conveying belts, the two second conveying belts are arranged on the sides of the support frame close to each other and a gap is left between the two second conveying belts; a first block is fixedly connected to the side of each first conveying belt, a first motor is threadedly connected to each first block, a first telescopic rod is fixedly connected to the output shaft of each first motor, a clamping block is fixedly connected to the end of each first telescopic rod, and the two clamping blocks are arranged close to each other; a base is fixedly arranged on the ground and corresponds to the welding area, a first cylinder is fixedly connected to the top of the base, a first rod is slidably connected to the inside of the first cylinder, a disc is fixedly connected to the top of the first rod, and an air pump is fixedly connected to the top of the base and communicates with the bottom of the first cylinder.

[0008] Preferably, the contact part of the clamping block and the rim is made of rubber.

[0009] The welding robot is arranged near the welding area, the rim is transported on the first conveying belt, the spokes are transported on the second conveying belts, when the rim is transported close to the welding area, the transportation is stopped, then the first motor is driven to move by the thread drive, the clamping blocks are moved to the outside of the rim, the first telescopic rods are controlled so that the clamping blocks clamp the rim and are moved to the welding area; at the same time, the spokes are transported on the second conveying belts, are stopped when transported directly below the welding area, at this time, the rim corresponds to the spokes, the air pump is controlled to inflate the first cylinder, the first rod is lifted, the disc is lifted, the spokes are lifted and the rim and the spokes are assembled, then the welding robot is used for welding, after one side is welded, the air pump is used for inhaling, the first rod is lowered, then the first telescopic rods are controlled to overturn 180 degrees, the rim is overturned, and the welding robot is used for welding the other side; the contact part of the clamping block and the rim is made of rubber, which is beneficial to protect the rim; the first telescopic rod is a square telescopic rod, and the air pump is a double-mode air pump, which can blow air and inhale air.

[0010] Preferably, the top center of the disc is fixedly provided with a fixed block, two sides of the fixed block are provided with a first cavity, a protruding block is slidably connected in the first cavity, and a first spring is fixedly connected between each protruding block and the side wall of the first cavity; the first rod, the disc and the fixed block are internally provided with a first channel, the first channel communicates the inside of the first cylinder with the inside of each first cavity; a second cavity is arranged at the position close to the bottom of the first rod, a first cross block is slidably connected in the second cavity, the first cross block can enter the first channel and block it, one end of the second cavity is fixedly connected with a first electromagnet, a second spring is fixedly connected between the first electromagnet and the first cross block, and the first electromagnet can attract the first cross block; a slot is arranged at the position close to the top of the first cylinder and corresponding to the first cross block;

[0011] When the first spring is in the initial state, the protruding block is located in the first cavity, when the first rod needs to be extended to the top of the spoke, the second spring is in the original position, one end of the first cross block is located in the first channel, the first channel is blocked, at this time, the first cylinder is inflated, the protruding block is not extended, when the disc contacts the spoke, the fixed block is located at the center hole of the spoke, when the first rod is extended to the maximum, at this time, the rim corresponds to the spoke, at this time, the first electromagnet is started to attract the first cross block, the first cross block is pulled out of the first channel and inserted into the slot at the top of the first cylinder, the fixation of the first rod is realized, at the same time, the first channel is opened, the airflow enters the first cavity to push out the protruding block, the protruding block contacts the center of the spoke to fix the spoke, which is beneficial to the stability of welding; a guide groove can be arranged to prevent the first rod from rotating in the first cylinder.

[0012] Preferably, four detection frames are uniformly arranged around the disc, and a first plate is fixedly connected to the bottom of each detection frame and provided with a pressure sensor at the connection position.

[0013] Preferably, a first ring is fixedly installed at the position close to the bottom of the first cylinder; four accommodation cavities are uniformly arranged around the bottom of the disc, a second ring is fixedly installed in each accommodation cavity, each detection frame is slidably connected in the accommodation cavity, and the first plate is located below the second ring; a first annular cavity is arranged in the disc below the accommodation cavities, and the first annular cavity communicates with the four accommodation cavities; a second channel is arranged in the first rod and the disc, and the second channel communicates the first cylinder with the first annular cavity; a third cavity is arranged at the position close to the bottom of the first rod, a second cross block is slidably connected in the third cavity, the second cross block can enter the second channel and block it, one end of the third cavity is fixedly connected with a second electromagnet, a third spring is fixedly connected between the second electromagnet and the second cross block, and the second electromagnet can attract the second cross block; a slot is arranged at the position close to the top of the first cylinder and corresponding to the second cross block;

[0014] When the third spring is in the original position, the second cross block blocks the second channel, and after welding, the first rod rises again, and when the fixing block is inserted into the center hole of the spoke again, the first rod is elongated to the maximum extent, the size of the fixing block is such that when the fixing block is inserted into the center hole of the spoke, a gap is left with the center hole, at this time only the second electromagnet is energized, the second channel is opened, the second cross block is inserted into the insertion slot at the top of the first cylinder, the fixation of the first rod is realized, at the same time, the airflow enters the first annular cavity, and the detection frame is ejected, the detection frame is ejected from the storage cavity, contacts the welded rim and spoke, and holds it up, since the bottom of the detection frame is fixedly connected with the first plate and the connection part is provided with a pressure sensor, the pressure sensor under each detection frame has a reading; after the rim and spoke are welded, subsequent dynamic balance test is still needed, if the weight distribution of the rim and spoke is uneven, most of the dynamic balance tests are unqualified, therefore, the setting realizes the preliminary detection of the rim and spoke before the dynamic balance test; the detection frames are uniformly distributed around the disc, and correspondingly uniformly hold up the rim and spoke, if the reading of the pressure sensor under a certain detection frame is smaller, the quality of this direction is lighter, at this time, the welding robot is used to weld in this direction to increase the weight, until the readings of the pressure sensors on the four detection frames are consistent, so as to realize the initial detection and correction, and lay a foundation for the subsequent dynamic balance test.

[0015] Preferably, a plurality of spray pipes are fixedly installed around the disc, a second annular cavity is formed near the edge of the inside of the disc, each spray pipe communicates with the second annular cavity, the first rod is provided with a third channel formed in the inside of the disc, the third channel communicates the inside of the first cylinder with the second annular cavity, a fourth cavity is formed near the bottom of the first rod, a third cross block is slidably connected in the fourth cavity, the third cross block can enter the third channel and block it, a third electromagnet is fixedly connected to one end of the fourth cavity, a fourth spring is fixedly connected between the third electromagnet and the third cross block, the third electromagnet can attract the third cross block, an insertion slot is formed in the first cylinder near the bottom and corresponding to the part of the third cross block, the second cavity, the third cavity and the fourth cavity are annularly distributed in the first rod;

[0016] As mentioned above, the application can preliminarily judge the dynamic balance of the rim and spoke according to the quality distribution, therefore, the residue of welding slag has a great influence on the detection result; therefore, after the rim and spoke are welded, the first rod is shortened to the shortest, at this time the third electromagnet is energized, the third cross block opens the third channel, the third cross block is inserted into the insertion slot at the bottom of the first cylinder to fix the first rod, then the air pump blows, the airflow enters the second annular cavity and is sprayed out from the spray pipe, at the same time, the rotation of the first motor drives the rim and spoke to overturn, and the welding slag is blown off, that is, the welding slag and dust are cleaned, and the accuracy of the subsequent detection is improved; then the third electromagnet is de-energized, and the fourth spring is reset.

[0017] The beneficial effects of the application are as follows:

[0018] 1. The application discloses a positioning and overturning device for welding electric power-assisted vehicle accessories, which is characterized in that an assembly and overturning unit is arranged, the assembly and overturning unit can carry the wheel rim and the wheel spoke, and assemble the wheel rim and the wheel spoke for welding by a welding robot, so that the working strength of workers is reduced; the wheel rim and the wheel spoke are overturned during the welding process, so that the front and back surfaces are welded, and the welding firmness is improved; and then the welded wheel rim and wheel spoke are transported.

[0019] 2. The application discloses a positioning and overturning device for welding electric power-assisted vehicle accessories, which is characterized in that a welding robot is arranged near a welding area, a wheel rim is transported on a first conveying belt, and wheel spokes are transported on two second conveying belts; when the wheel rim is transported to the vicinity of the welding area, the transportation is stopped; then a first motor is driven through a threaded transmission, a clamping block is moved to the outside of the wheel rim, a first telescopic rod is controlled, the clamping block clamps the wheel rim, and the clamping block is moved to the welding area; at the same time, the wheel spokes are transported on the second conveying belts, and the transportation is stopped when the wheel spokes are transported to the position directly below the welding area; at this time, the wheel rim corresponds to the wheel spokes, an air pump is controlled to inflate a first cylinder, a first rod is lifted, a disc is lifted, the wheel spokes are lifted and lifted, the wheel spokes are assembled with the wheel rim, and then the welding robot is used for welding; after one side is welded, the air pump is used for inhaling air, the first rod is lowered, then a first motor is used for controlling the first telescopic rod to overturn by 180 degrees, overturning is realized, and the welding robot is used for welding the other side. BRIEF DESCRIPTION OF DRAWINGS

[0020] The application will be further described below with reference to the drawings.

[0021] Figure 1 is a perspective view of the application Figure 1 ;

[0022] Figure 2 is a perspective view of the application Figure 2 ;

[0023] Figure 3 is a perspective view of the application Figure 3 ;

[0024] Figure 4 is a partial top view of the application

[0025] Figure 5 is a partial perspective view of the application Figure 1 ;

[0026] Figure 6 is a partial perspective view of the application Figure 2 ;

[0027] Figure 7 is a partial perspective view of the application Figure 3 ;

[0028] Figure 8 is a partial sectional view of the application

[0029] Figure 9 is Figure 8 a local enlarged view of A in

[0030] Figure 10 is Figure 8 a local enlarged view of B in

[0031] Figure 11 is a top view of the bottom of the first rod of the present application;

[0032] In the figure: 1, welding robot; 2, assembly turnover unit; 21, support frame; 22, first conveying belt; 23, welding area; 24, second conveying belt; 25, first block; 26, first motor; 27, first telescopic rod; 28, clamping block; 3, base; 31, first cylinder; 32, first rod; 33, disc; 34, air pump; 4, fixed block; 41, first cavity; 42, protruding block; 43, first spring; 44, first channel; 45, second cavity; 46, first cross block; 47, first electromagnet; 48, second spring; 49, insertion slot; 5, detection frame; 51, first plate; 6, first ring; 61, storage cavity; 62, second ring; 63, first annular cavity; 64, second channel; 65, third cavity; 66, second cross block; 67, second electromagnet; 68, third spring; 7, spray pipe; 71, second annular cavity; 72, third channel; 73, fourth cavity; 74, third cross block; 75, third electromagnet; 76, fourth spring. DETAILED DESCRIPTION

[0033] In order to make the technical means, creative features, purposes and effects of the present application easy to understand, the present application is further described below in conjunction with specific embodiments.

[0034] As Figure 1 , Figure 2 , Figure 3 shown, the alignment turnover device for welding electric power-assisted vehicle accessories of the present application comprises: a welding robot 1, which can weld the rim and the spoke together; the alignment turnover device for welding electric power-assisted vehicle accessories further comprises: an assembly turnover unit 2, which can carry the rim and the spoke and assemble the rim and the spoke for welding by the welding robot 1; and turn over the rim and the spoke during the welding process to realize welding of the front and back surfaces; and then transport the welded rim and spoke;

[0035] When working, manual welding is often needed when welding the rim and the spoke together, which has problems of great working strength, low efficiency, and poor welding precision caused by unstable fixation; therefore, the assembling and overturning unit 2 is arranged, which can carry the rim and the spoke, assemble the rim and the spoke for the welding robot 1, and reduce the working strength of workers; and the rim and the spoke are overturned during welding to realize front and back welding and increase the firmness of welding; then the welded rim and spoke are transported.

[0036] As a specific embodiment of the present application, as Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 、 Figure 6 、 Figure 7 、 Figure 8 shown, the assembling and overturning unit 2 comprises: a support frame 21, two first conveying belts 22 are fixedly installed on the top of the support frame 21, the two first conveying belts 22 are arranged at intervals and the intervals form a welding area 23; two second conveying belts 24 are fixedly installed on the support frame 21 below the first conveying belts 22, the two second conveying belts 24 are installed on the sides of the support frame 21 close to each other, and a gap is left between the two second conveying belts 24; a first block 25, the two sides of the first conveying belt 22 are fixedly connected with the first block 25, each first block 25 is threadedly connected with a first motor 26 through the cooperation of a motor and a lead screw (i.e. the motor is located at the end of the first block 25, the lead screw is located in the interior of the first block 25, and the first motor 26 is threadedly connected with the lead screw), the output shaft of each first motor 26 is fixedly connected with a first telescopic rod 27, the end of each first telescopic rod 27 is fixedly connected with a clamping block 28, and the two clamping blocks 28 are arranged close to each other; a base 3, the base 3 is fixedly installed on the ground and corresponds to the welding area 23, the top of the base 3 is fixedly connected with a first cylinder 31, a first rod 32 is slidably connected in the interior of the first cylinder 31, a disc 33 is fixedly connected to the top of the first rod 32, a gas pump 34 is fixedly connected to the top of the base 3, and the gas inlet of the gas pump 34 is in communication with the bottom of the first cylinder 31; the contact part of the clamping block 28 with the rim is made of rubber;

[0037] When working, the welding robot 1 is located near the welding area 23, the wheel rim is transported on the first conveying belt 22, the wheel spoke is transported on the two second conveying belts 24, when the wheel rim is transported to be close to the welding area 23, the transportation is stopped, then the first motor 26 is driven to move by the screw transmission, the clamping block 28 is moved to the outside of the wheel rim, the first telescopic rod 27 is controlled, so that the clamping block 28 clamps the wheel rim and is moved to the welding area 23 (the photoelectric sensor or the visual sensor can be arranged on the first conveying belt 22, so that the transportation of each wheel rim is stopped when the wheel rim is moved to the specific position close to the welding area 23, and the clamping of the clamping block 28 is facilitated); at the same time, the wheel spoke is transported on the second conveying belt 24 and is stopped (can be detected by the photoelectric sensor or the visual sensor) when being transported to be directly below the welding area 23, at this time, the wheel rim corresponds to the wheel spoke, the air pump 34 is controlled to inflate the first cylinder 31, so that the first rod 32 rises, drives the disc 33 to rise, pushes the wheel spoke and lifts, so that the wheel spoke is assembled with the wheel rim, then the welding robot 1 is welded, one side is welded, the air pump 34 is inflated, the first rod 32 is lowered, then the first motor 26 controls the first telescopic rod 27 to turn over 180 degrees, the turning over is realized, and the welding robot 1 welds the other side; the contact part of the clamping block 28 and the wheel rim is made of rubber material, which is beneficial to protect the wheel rim; the first telescopic rod 27 is a square telescopic rod, and the air pump 34 is a double-mode air pump 34, which can blow air and inhale air.

[0038] As a specific embodiment of the present application, as shown in Figure 8 、 Figure 9 、 Figure 11 The top central position of the disc 33 is fixedly provided with a fixed block 4, a first cavity 41 is formed on the two sides of the fixed block 4, a protruding block 42 is slidably connected in the first cavity 41, and a first spring 43 is fixedly connected between each protruding block 42 and the side wall of the first cavity 41; a first channel 44 is arranged in the first rod 32, the disc 33 and the fixed block 4, and the first channel 44 communicates the inside of the first cylinder 31 with the inside of each first cavity 41; a second cavity 45 is arranged at the position close to the bottom of the first rod 32, a first cross block 46 is slidably connected in the second cavity 45, the first cross block 46 can enter the first channel 44 and block the first channel 44, one end of the second cavity 45 is fixedly connected with a first electromagnet 47, the first electromagnet 47 and the first cross block 46 are fixedly connected with a second spring 48, and the first electromagnet 47 can attract the first cross block 46; a slot 49 is formed at the position close to the top of the first cylinder 31 and corresponding to the first cross block 46;

[0039] When working, the extension block 42 is located inside the first cavity 41 in the initial state of the first spring 43, when the first rod 32 needs to be extended to the top of the spoke, the second spring 48 is in the original position, one end of the first cross block 46 is located in the first channel 44, and the first channel 44 is blocked, at this time, the first cylinder 31 is inflated, the extension block 42 is not extended, when the disc 33 contacts the spoke, the fixed block 4 is located at the center hole of the spoke, when the first rod 32 is extended to the maximum, at this time, the rim corresponds to the spoke, at this time, the first electromagnet 47 is started, the first cross block 46 is adsorbed, the first cross block 46 is pulled out of the first channel 44, and the other end is inserted into the insertion slot 49 at the top of the first cylinder 31, so that the first rod 32 is fixed, at the same time, the first channel 44 is opened, the air flow enters the first cavity 41, the extension block 42 is pushed out, the extension block 42 contacts the center of the spoke, the spoke is fixed, and the stability of welding is beneficial; the guide groove can be arranged, so that the first rod 32 does not rotate in the first cylinder 31.

[0040] As a specific embodiment of the present application, as shown in Figure 6 、 Figure 7 、 Figure 8 It is shown that the four detection frames 5 are uniformly arranged around the disc 33, and the bottom of each detection frame 5 is fixedly connected with a first plate 51 and the connection is provided with a pressure sensor;

[0041] As shown in Figure 8 、 Figure 9 、 Figure 10 、 Figure 11 It is shown that the first ring 6 is fixedly installed at the position close to the bottom of the first cylinder 31; four receiving cavities 61 are uniformly arranged around the bottom of the disc 33, and the second ring 62 is fixedly installed in the receiving cavity 61; each detection frame 5 is slidingly connected in the receiving cavity 61, and the first plate 51 is located below the second ring 62; a first annular cavity 63 is arranged inside the disc 33 and below the receiving cavity 61, and the first annular cavity 63 is communicated with the four receiving cavities 61; the first rod 32 and the disc 33 are provided with a second channel 64, and the second channel 64 communicates the first cylinder 31 with the first annular cavity 63; the third cavity 65 is arranged at the position close to the bottom of the first rod 32, and the second cross block 66 is slidingly connected in the third cavity 65; the second cross block 66 can enter the second channel 64 and block it, one end of the third cavity 65 is fixedly connected with the second electromagnet 67, the second electromagnet 67 and the second cross block 66 are fixedly connected with the third spring 68, and the second electromagnet 67 can attract the second cross block 66; the insertion slot 49 is arranged at the position close to the top of the first cylinder 31 and corresponding to the part of the second cross block 66;

[0042] When the third spring 68 is in the original position, the second cross block 66 blocks the second channel 64 during work, and after welding, the first rod 32 is lifted again, and when the fixing block 4 is inserted into the spoke center hole again, the first rod 32 is elongated to the maximum extent, and the size of the fixing block 4 is such that when the fixing block 4 is inserted into the spoke center hole, a gap is left with the center hole, at this time, only the second electromagnet 67 is energized, the second channel 64 is opened, the second cross block 66 is inserted into the insertion slot 49 at the top of the first cylinder 31, and the fixation of the first rod 32 is realized, at the same time, the airflow enters the first annular cavity 63, and the detection frame 5 is ejected from the storage cavity 61, contacts the welded rim and spoke, and holds it up, because the bottom of each detection frame 5 is fixedly connected with the first plate 51 and the connection part is provided with a pressure sensor, so that each pressure sensor under the detection frame 5 has a reading; because the rim and spoke are welded, subsequent dynamic balance test is required, if the weight distribution of the rim and spoke is uneven, the dynamic balance test is mostly unqualified, so the setting realizes the preliminary detection of the rim and spoke before the dynamic balance test; the detection frames 5 are evenly distributed around the disc 33, and correspondingly hold up the rim and spoke, if the reading of the pressure sensor under a certain detection frame 5 is smaller, the quality of this direction is lighter, at this time, the welding robot 1 is used to weld in this direction to increase the weight, until the readings of the pressure sensors on the four detection frames 5 are consistent, so as to realize the preliminary detection and correction, and lay a foundation for the subsequent dynamic balance test.

[0043] As a specific embodiment of the present application, as shown in Figure 6 、 Figure 8 、 Figure 10 The disc 33 is fixedly installed with a plurality of spray pipes 7 around the periphery, and a second annular cavity 71 is formed in the inner part of the disc 33 close to the edge part, each spray pipe 7 communicates with the second annular cavity 71; the first rod 32 is provided with a third channel 72 in the inner part of the disc 33, the third channel 72 communicates the inside of the first cylinder 31 with the second annular cavity 71; a fourth cavity 73 is formed in the inner part of the first rod 32 close to the bottom part, a third cross block 74 is slidably connected in the fourth cavity 73, the third cross block 74 can enter the third channel 72 and block it, one end of the fourth cavity 73 is fixedly connected with a third electromagnet 75, a fourth spring 76 is fixedly connected between the third electromagnet 75 and the third cross block 74, and the third electromagnet 75 can attract the third cross block 74; an insertion slot 49 is formed in the first cylinder 31 close to the bottom part and corresponding to the part of the third cross block 74; the second cavity 45, the third cavity 65 and the fourth cavity 73 are annularly distributed in the first rod 32;

[0044] When working, as mentioned above, the application will use the quality distribution to preliminarily judge the dynamic balance of the rim and the spoke, so the residue of the welding slag has a great influence on the detection result; therefore, after the rim and the spoke are welded, the first rod 32 is shortened to the shortest, at this time the third electromagnet 75 is powered on, the third cross block 74 opens the third channel 72, the third cross block 74 is inserted into the slot 49 at the bottom of the first cylinder 31 to fix the first rod 32, then the air pump 34 blows air, the airflow enters the second annular cavity 71 and is sprayed from the nozzle 7, at the same time, the rotation of the first motor 26 drives the rim and the spoke to overturn, and the welding slag is blown off, that is, the welding slag and dust are cleaned, and the accuracy of the subsequent detection is improved; then the third electromagnet 75 is powered off, and the fourth spring 76 is reset.

[0045] The above examples are only used to illustrate the technical solutions of the present application, but not to limit it. Although the present application has been described in detail with reference to the above examples, those skilled in the art should understand that the specific embodiments of the present application can still be modified or replaced by equivalents without departing from the spirit and scope of the present application, and any modification or equivalent replacement should be covered within the protection scope of the claims of the present application.

Claims

1. A positioning and overturning device for welding e-scooter accessories, comprising: a welding robot (1) capable of welding a rim and spokes together; characterized in that the positioning and overturning device for welding e-scooter accessories further comprises: an assembly and overturning unit (2) capable of carrying a rim and spokes, assembling the rim and spokes for welding by the welding robot (1), overturning the rim and spokes during welding to realize front and back welding, and then transporting the welded rim and spokes; the assembly and overturning unit (2) comprises a first conveyor belt (22), a second conveyor belt (24), a clamping block (28), a first cylinder (31), a first rod (32), and a disc (33); the first conveyor belt (22) is used to transport the rim, the clamping block (28) is used to clamp the rim, the second conveyor belt (24) is used to transport the spokes, the first cylinder (31), the first rod (32), and the disc (33) are used to push the spokes and lift them so that the spokes are assembled with the rim; four detection frames (5) are evenly arranged around the disc (33), a first plate (51) is fixedly connected to the bottom of each detection frame (5), and a pressure sensor is arranged at the connection; a fixed block (4) is fixedly arranged at the top center position of the disc (33), a first cavity (41) is formed in the two sides of the fixed block (4), a protruding block (42) is slidably connected inside the first cavity (41), a first spring (43) is fixedly connected between each protruding block (42) and the side wall of the first cavity (41); a first channel (44) is arranged inside the first cylinder (31), the first rod (32), and the fixed block (4), the first channel (44) communicates the inside of the first cylinder (31) with the inside of each first cavity (41); a second cavity (45) is arranged near the bottom of the first rod (32), a first cross block (46) is slidably connected inside the second cavity (45), the first cross block (46) can enter the first channel (44) and block it, one end of the second cavity (45) is fixedly connected with a first electromagnet (47), a second spring (48) is fixedly connected between the first electromagnet (47) and the first cross block (46), and the first electromagnet (47) can attract the first cross block (46); a slot (49) is formed in the first cylinder (31) near the top and corresponding to the position of the first cross block (46). The first barrel (31) is fixedly installed with a first ring (6) near the bottom, four receiving cavities (61) are uniformly arranged around the bottom of the disc (33), a second ring (62) is fixedly installed in each receiving cavity (61), each detection frame (5) is slidingly connected in the receiving cavity (61), and the first plate (51) is located below the second ring (62); a first annular cavity (63) is arranged inside the disc (33) and below the receiving cavities (61), the first annular cavity (63) communicates with the four receiving cavities (61), a second channel (64) is arranged in the disc (33) and the first barrel (31), the second channel (64) communicates the first barrel (31) with the first annular cavity (63), a third cavity (65) is arranged in the first barrel (32) and near the bottom, a second cross block (66) is slidingly connected in the third cavity (65), the second cross block (66) can enter the second channel (64) and block the second channel (64), a second electromagnet (67) is fixedly connected to one end of the third cavity (65), a third spring (68) is fixedly connected between the second electromagnet (67) and the second cross block (66), and the second electromagnet (67) can attract the second cross block (66); a slot (49) is arranged in the first barrel (31) and near the top and corresponds to the position of the second cross block (66). A plurality of spray pipes (7) are fixedly installed around the disc (33), a second annular cavity (71) is arranged inside the disc (33) and near the edge, each spray pipe (7) communicates with the second annular cavity (71), a third channel (72) is arranged in the disc (33) and the first barrel (31), the third channel (72) communicates the inside of the first barrel (31) with the second annular cavity (71), a fourth cavity (73) is arranged in the first barrel (32) and near the bottom, a third cross block (74) is slidingly connected in the fourth cavity (73), the third cross block (74) can enter the third channel (72) and block the third channel (72), a third electromagnet (75) is fixedly connected to one end of the fourth cavity (73), a fourth spring (76) is fixedly connected between the third electromagnet (75) and the third cross block (74), and the third electromagnet (75) can attract the third cross block (74); a slot (49) is arranged in the first barrel (31) and near the bottom and corresponds to the position of the third cross block (74); the second cavity (45), the third cavity (65) and the fourth cavity (73) are annularly distributed in the first barrel (32).

2. The alignment and turnover device for welding of an electric moped accessory according to claim 1, characterized in that: the assembly turnover unit (2) comprises: Support frame (21), the top of the support frame (21) is fixedly installed with two first conveying belts (22), two first conveying belts (22) are arranged at intervals and the intervals constitute a welding area (23); two second conveying belts (24) are fixedly installed on the support frame (21) below the first conveying belt (22), the two second conveying belts (24) are installed on the mutually close sides of the support frame (21), and gaps are left between the two second conveying belts (24); A first block (25) is fixedly connected to the two sides of the first conveying belt (22), a first motor (26) is threadedly and drivably connected to each first block (25), a first telescopic rod (27) is fixedly connected to the output shaft of each first motor (26), and a clamping block (28) is fixedly connected to the end of each first telescopic rod (27), and the two clamping blocks (28) are arranged close to each other; A base (3) is fixedly installed on the ground and corresponds to the welding area (23), a first cylinder (31) is fixedly connected to the top of the base (3), a first rod (32) is slidably connected in the first cylinder (31), a disc (33) is fixedly connected to the top of the first rod (32), and an air pump (34) is fixedly connected to the top of the base (3), and the air inlet of the air pump (34) is in communication with the bottom of the first cylinder (31).

3. The aligning and turning device for welding accessories of electrically assisted bicycle according to claim 2, characterized in that: The contact part of the clamping block (28) and the rim is made of rubber.

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