An electric tricycle frame welding production line and production method

Abstract

The present invention relates to the technical field of frame welding, and discloses an electric tricycle frame welding production line and a production method. The splicing mechanism further includes a conveyor and a welding robot. A carrying tray is placed on the top of the conveyor. The side bracket is placed on the second support block, and the side bracket is preliminarily clamped by the rubber clamping block. The cross beam is placed on the first support block. The electric telescopic rod is started to extend, pushing the connecting plate to move and driving the second support block to move. The spring plate will squeeze the gas in the second support block through the air delivery hose, causing the rubber clamping block to expand and apply a greater clamping force to the side bracket. When the second support block moves, it will also drive the first connecting rod to move, driving the roller to move and squeeze the inclined panel, causing the two inclined panels to move, and the spring pressing plate to squeeze the cross beam, realizing the simultaneous clamping of the side bracket and the cross beam, enabling the positions of the side bracket and the cross beam to be kept consistent, thereby reducing the offset caused by the movement of the side bracket.

Description

Technical Field

[0001] The present invention relates to the technical field of frame welding equipment, and particularly to an electric tricycle frame welding production line and a production method thereof. Background Art

[0002] An electric tricycle frame welding production line is an automated production equipment specifically used for manufacturing electric tricycle frames. Its main purpose is to assemble various components of the frame (such as front and rear brackets, crossbeams, frames, etc.) through welding technology.

[0003] Among them, the side brackets and crossbeams are the main load-bearing parts of the tricycle frame. Therefore, the welding quality of the side brackets and crossbeams is crucial. During welding, the side brackets and crossbeams on both sides are often directly pushed into contact and then welded. However, direct pushing may cause the positions of the side brackets and crossbeams to shift, resulting in insufficiently tight contact between the two. This unstable contact may affect the welding effect, resulting in poor joint strength and affecting the welding quality. Summary of the Invention

[0004] To solve the above technical problems, the present invention provides an electric tricycle frame welding production line, including a splicing mechanism. The splicing mechanism further includes a conveyor and a welding robot. A loading tray is placed on the top of the conveyor. A blocking cylinder is fixedly connected to the side wall of the conveyor. Two support blocks I are fixedly connected to the top of the loading tray.

[0005] A reciprocating mechanism, which includes four fixed frames fixedly connected to the top of the loading tray. Gear rods are rotatably connected to the inner walls of the four fixed frames. Swing blocks are fixedly connected to the outer walls of the four gear rods.

[0006] An adsorption mechanism, which includes two fixed frames fixedly connected to the inner walls of the support blocks I. Sliding plates I are slidably connected to the inner walls of the four fixed frames. Three suction cups are fixedly connected to the tops of the four fixed frames.

[0007] Preferably, the splicing mechanism further includes an electric telescopic rod fixedly connected to the side wall of the conveyor. Four support blocks II are slidably connected to the top of the loading tray. The four support blocks II are grouped in pairs. Connecting plates are fixedly connected to the side walls of the two groups of support blocks II. Two rubber clamping blocks are slidably connected to the tops of the four support blocks II.

[0008] Among them, spring pressing rods are fixedly connected to the side walls of the eight rubber clamping blocks. The outer walls of the eight spring pressing rods are slidably connected to the inner walls of the support blocks II.

[0009] Preferably, the splicing mechanism further includes two side brackets arranged on the top of the bearing tray. The bottoms of the two side brackets are both in contact with the bottom of the second support block. Two crossbeams are placed on the tops of the two first support blocks. Connecting rods are rotatably connected to the side walls of the four second support blocks;

[0010] Among them, rotating disks are rotatably connected to the side walls of the two first support blocks. The inner walls of the two rotating disks are rotatably connected to the outer walls of the connecting rods. Two L-shaped rods are fixedly connected to the side walls of the two first support blocks. The staff places the side bracket to be welded on the second support block. During the placement process, the rubber clamping block will be squeezed, thereby squeezing the spring extrusion rod. Through the resilience of the spring extrusion rod, the rubber clamping block will initially clamp the side bracket. At the same time, place the crossbeam to be welded on the first support block, and then move the bearing tray on the conveyor until the bearing tray moves to the welding area, making the bearing tray contact the blocking cylinder to block the bearing tray. Then start the electric telescopic rod to extend and contact the connecting plate, pushing the connecting plate on the left towards the first support block, and at the same time driving the second support block to move. When the second support block moves, it will also drive the connecting rod on the left to rotate, thereby rotating the rotating disk and driving the connecting rod on the right to rotate, pulling the second support block on the right to move, and making the two second support blocks approach each other, so that the two side brackets approach the crossbeam at the same time.

[0011] Preferably, the splicing mechanism further includes spring plates slidably connected to the inner walls of the second support blocks. The side walls of the four spring plates are fixedly connected to the side walls of the L-shaped rods. Two air delivery hoses are connected through the inner walls of the four second support blocks. The outer walls of the eight air delivery hoses are connected through the inner walls of the rubber clamping blocks. Two spring extrusion plates are slidably connected to the tops of the two first support blocks;

[0012] Among them, the bottoms of the four spring pressing plates are fixedly connected with inclined plates. Connecting rods I are fixedly connected to the side walls of the two supporting blocks II on the left side. Rollers are rotatably connected to the side walls of the two connecting rods I. The outer walls of the two connecting rods I are slidably connected to the inner walls of the supporting block I. At the same time, when the supporting block II approaches the supporting block I, since the spring plate is in a static state, when the supporting block II moves, the spring plate will squeeze the gas in the supporting block II. At the same time, the spring plate accumulates elastic force for recovery. The squeezed gas will enter the rubber clamping block through the air delivery hose, causing the rubber clamping block to expand and apply a greater clamping force to the side bracket. Since the air delivery hose has elastic and telescopic properties, when the rubber clamping block moves, it will pull the air delivery hose to move together, enabling the rubber clamping block to move smoothly. At the same time, when the supporting block II on the left side moves, it will also drive the connecting rod I to move, driving the roller to move into contact with the inclined surface of the inclined plate. The roller will then squeeze the inclined plate, causing the two inclined plates to move away from each other, driving the spring pressing plate to squeeze the cross beam, thereby stabilizing the cross beam, achieving simultaneous clamping of the side bracket and the cross beam until the side wall of the side bracket fits the side wall of the cross beam. Finally, a welding robot welds the side bracket and the cross beam. By simultaneously clamping the side bracket and the cross beam, the positions of the side bracket and the cross beam can be kept consistent, thereby reducing the offset caused by the movement of the side bracket and ensuring stable contact between their contact surfaces.

[0013] Preferably, the reciprocating mechanism further includes racks fixedly connected to the side walls of the supporting block II. The tops of the four racks are meshed with the outer walls of the gear rods. The outer walls of the four gear rods are fixedly connected with clockwork springs. Four jacking plates are arranged on the top of the carrying tray;

[0014] Among them, two spring return rods are slidably connected to the inner walls of the four jacking plates. The bottoms of the eight spring return rods are fixedly connected to the top of the carrying tray. Using the force of the movement of the supporting block II, when the supporting block II approaches the supporting block I, it will also drive the rack to mesh with the gear rod, thereby causing the gear rod to rotate. At the same time, the clockwork spring is tightened to accumulate elastic force for recovery. When the side bracket fits the cross beam, the rack will separate from the gear rod. At this time, the limit on the clockwork spring disappears, and the elastic force of the clockwork spring is released, causing the gear rod to rotate again, making the swing block rotate. When the swing block contacts the jacking plate, it will jack up the jacking plate, squeezing the spring return rod and causing the spring return rod to accumulate elastic force for recovery.

[0015] Preferably, the adsorption mechanism further includes two second connecting rods fixedly connected to the bottom of the jacking plate. Two first fixing rods are fixedly connected to the bottom of each of the four first sliding plates. Four rotating frames are rotatably connected to the inner walls of the two first supporting blocks. The outer walls of the second connecting rods are slidably connected to the inner walls of the eight rotating frames. The outer walls of the first fixing rods are slidably connected to the inner walls of the eight rotating frames. By using the force of the movement of the jacking plate, when the jacking plate rises, it will also drive the second connecting rod to rise, so that the second connecting rod slides in the rotating frame, driving the rotating frame to rotate, making the rotating frame tilt, thereby pulling the first fixing rod down, pulling the first sliding plate down. When the first sliding plate descends, a negative pressure is generated at the top of the first sliding plate. The negative pressure is transmitted to the cross beam through the suction cup to adsorb the cross beam and fix the cross beam for the second time, effectively preventing the cross beam from shifting when the spring pressing plate does not generate a large pressing force and the jacking plate contacts the cross beam, which may affect the subsequent fitting of the side bracket and the cross beam.

[0016] Preferably, the adsorption mechanism further includes four connecting frames fixedly connected to the top of the bearing tray. Two second sliding plates are slidably connected to the inner walls of the four connecting frames. Two second fixing rods are fixedly connected to the bottoms of the four second sliding plates. Two air blowing pipes are connected through the inner walls of the four connecting frames. By using the force of the movement of the second connecting rod, when the second connecting rod rises, it will also contact the second fixing rod, thereby pushing the second fixing rod up, driving the second sliding plate up. When the second sliding plate rises, it will squeeze the gas in the connecting frame. The squeezed gas will enter the air blowing pipe and be ejected through the air blowing pipe onto the contact surface between the cross beam and the side bracket.

[0017] A production method of an electric tricycle frame welding production line includes the following steps:

[0018] S1: Double clamping;

[0019] S2: Slight tapping;

[0020] S3: Adsorption fixation.

[0021] The present invention has the following beneficial effects:

[0022] (1) When the present invention is in use, the staff places the side bracket to be welded on the second support block. During the placement process, the rubber clamping block will be squeezed, thereby squeezing the spring extrusion rod. Through the resilience of the spring extrusion rod, the rubber clamping block initially clamps the side bracket. At the same time, the cross beam to be welded is placed on the first support block, and then the bearing tray moves on the conveyor until the bearing tray moves to the welding area and contacts the blocking cylinder to block the bearing tray. Then, the electric telescopic rod is started to extend and contact the connecting plate, pushing the connecting plate on the left side towards the first support block, and at the same time driving the second support block to move. When the second support block moves, it will also drive the connecting rod on the left side to rotate, thereby rotating the rotating disc and driving the connecting rod on the right side to rotate, pulling the second support block on the right side to move, making the two second support blocks approach each other, so that the two side brackets approach the cross beam at the same time. At the same time, when the second support block approaches the first support block, since the spring plate is in a static state, when the second support block moves, the spring plate will squeeze the gas in the second support block, and at the same time, let the spring plate accumulate resilience. The squeezed gas will enter the rubber clamping block through the air delivery hose, making the rubber clamping block expand and exert a greater clamping force on the side bracket. Since the air delivery hose has stretchable elasticity, when the rubber clamping block moves, it will pull the air delivery hose to move together, enabling the rubber clamping block to move smoothly. At the same time, when the second support block on the left side moves, it will also drive the first connecting rod to move, driving the roller to contact the inclined surface of the inclined panel, and the roller will squeeze the inclined panel, making the two inclined panels move away from each other, driving the spring extrusion plate to squeeze the cross beam, thereby stabilizing the cross beam, achieving simultaneous clamping of the side bracket and the cross beam until the side wall of the side bracket fits the side wall of the cross beam. Finally, the side bracket and the cross beam are welded by a welding robot. By simultaneously clamping the side bracket and the cross beam, the positions of the side bracket and the cross beam can be kept consistent, thereby reducing the offset caused by the movement of the side bracket and ensuring that the contact surfaces of the two stably contact each other.

[0023] (2) The present invention utilizes the force generated by the movement of the second support block. When the second support block approaches the first support block, it will also drive the rack to engage with the gear rod, thereby causing the gear rod to rotate. At the same time, the clockwork spring is tightened to store the resilience. When the side bracket fits against the crossbeam, the rack will separate from the gear rod. At this time, the limit on the clockwork spring disappears, and the resilience of the clockwork spring will be released, causing the gear rod to rotate again and the swing block to rotate. When the swing block contacts the jacking plate, it will jack up the jacking plate and squeeze the spring return rod, causing the spring return rod to store the resilience, so that the top of the jacking plate contacts the bottom of the side bracket and the crossbeam respectively. After the swing block separates from the jacking plate, the resilience of the spring return rod will be released, causing the jacking plate to return to its original position until the swing block rotates and jacks up the jacking plate again until the resilience of the clockwork spring is completely released. During the release process, the jacking plate can move up and down reciprocally, thereby slightly knocking on the side bracket and the crossbeam, effectively eliminating the gap between their mating surfaces, adjusting the fit between the side bracket and the crossbeam, and reducing the occurrence of local poor contact or gaps.

[0024] (3) The present invention utilizes the force generated by the movement of the jacking plate. When the jacking plate rises, it will also drive the second connecting rod to rise, causing the second connecting rod to slide within the rotating frame and driving the rotating frame to rotate, making the rotating frame tilt, thereby pulling the first fixed rod downward and pulling the first sliding plate downward. When the first sliding plate descends, a negative pressure is generated at the top of the first sliding plate, and the negative pressure is transmitted to the crossbeam through the suction cup to adsorb the crossbeam and fix the crossbeam for the second time, effectively preventing the crossbeam from shifting when the spring pressing plate does not generate a large pressing force and the jacking plate contacts the crossbeam, which may affect the subsequent fitting of the side bracket and the crossbeam.

[0025] (4) The present invention utilizes the force generated by the movement of the second connecting rod. When the second connecting rod rises, it will also contact the second fixed rod, thereby pushing the second fixed rod upward and driving the second sliding plate upward. When the second sliding plate rises, it will squeeze the gas within the connecting frame, and the squeezed gas will enter the blowpipe and be sprayed out through the blowpipe onto the contact surface between the crossbeam and the side bracket to clean the contact surface between the crossbeam and the side bracket, effectively preventing uneven contact caused by impurities or dust and enabling better bonding between the two during welding. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0027] Figure 1 It is a schematic cross-sectional view of the overall structure of the present invention;

[0028] Figure 2Schematic diagram of the overall structure of the present invention;

[0029] Figure 3 Schematic cross-sectional view of the second support block of the present invention;

[0030] Figure 4 Exploded schematic diagram of some components of the splicing mechanism of the present invention;

[0031] Figure 5 For the present invention Figure 4 Enlarged schematic diagram of A in;

[0032] Figure 6 Schematic diagram of some components of the reciprocating mechanism of the present invention;

[0033] Figure 7 Schematic cross-sectional view of the first support block of the present invention;

[0034] Figure 8 For the present invention Figure 7 Enlarged schematic diagram of B in;

[0035] Figure 9 Schematic cross-sectional view of the connection frame of the present invention;

[0036] Figure 10 Schematic diagram of the working process of the present invention.

[0037] In the drawings, the list of components represented by each reference numeral is as follows:

[0038] In the figure: 1. Splicing mechanism; 101. Conveyor; 102. Welding robot; 103. Blocking cylinder; 104. Carrying tray; 105. First support block; 106. Electric telescopic rod; 107. Second support block; 108. Connecting plate; 109. Rubber clamping block; 110. Side bracket; 111. Cross beam; 112. Connecting rod; 113. Rotating disc; 114. L-shaped rod; 115. Spring plate; 116. Gas transmission hose; 117. Spring pressing plate; 118. Inclined panel; 119. First connecting rod; 120. Roller; 2. Reciprocating mechanism; 201. Fixed frame; 202. Gear rod; 203. Swing block; 204. Hairspring; 205. Rack; 206. Spring return rod; 207. Lifting plate; 3. Adsorption mechanism; 301. Fixed frame; 302. First sliding plate; 303. Suction cup; 304. Second connecting rod; 305. Rotating frame; 306. First fixed rod; 307. Connection frame; 308. Second sliding plate; 309. Second fixed rod; 310. Blowing pipe. Detailed implementation manners

[0039] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0040] Embodiment 1. Please refer to Figure 1 - Figure 5 , the present invention is a welding production line for an electric tricycle frame, including a splicing mechanism 1. The splicing mechanism 1 further includes a conveyor 101 and a welding robot 102. A carrying tray 104 is placed on the top of the conveyor 101. A blocking cylinder 103 is fixedly connected to the side wall of the conveyor 101. Two support blocks 105 are fixedly connected to the top of the carrying tray 104.

[0041] A reciprocating mechanism 2. The reciprocating mechanism 2 includes four fixed frames 201 fixedly connected to the top of the carrying tray 104. Gear rods 202 are rotatably connected to the inner walls of the four fixed frames 201. Swing blocks 203 are fixedly connected to the outer walls of the four gear rods 202.

[0042] An adsorption mechanism 3. The adsorption mechanism 3 includes two fixed frames 301 fixedly connected to the inner walls of the support blocks 105. Slide plates 302 are slidably connected to the inner walls of the four fixed frames 301. Three suction cups 303 are fixedly connected to the tops of the four fixed frames 301.

[0043] The splicing mechanism 1 further includes an electric telescopic rod 106 fixedly connected to the side wall of the conveyor 101. Four support blocks 107 are slidably connected to the top of the carrying tray 104. The four support blocks 107 are divided into two groups in pairs. Connecting plates 108 are fixedly connected to the side walls of the two groups of support blocks 107. Two rubber clamping blocks 109 are slidably connected to the tops of the four support blocks 107.

[0044] Among them, spring extrusion rods are fixedly connected to the side walls of the eight rubber clamping blocks 109, and the outer walls of the eight spring extrusion rods are slidably connected to the inner walls of the support blocks 107.

[0045] The splicing mechanism 1 further includes two side brackets 110 arranged on the top of the carrying tray 104. The bottoms of the two side brackets 110 are in contact with the bottoms of the support blocks 107. Two cross beams 111 are placed on the tops of the two support blocks 105. Connecting rods 112 are rotatably connected to the side walls of the four support blocks 107.

[0046] Wherein, rotating discs 113 are rotatably connected to the side walls of both support blocks 105. The inner walls of the two rotating discs 113 are rotatably connected to the outer walls of the connecting rods 112. Two L-shaped rods 114 are fixedly connected to the side walls of both support blocks 105. The staff places the side bracket 110 to be welded on the support block 107. During the placement process, the rubber clamping block 109 will be squeezed, thereby squeezing the spring extrusion rod. Through the resilience of the spring extrusion rod, the rubber clamping block 109 initially clamps the side bracket 110. At the same time, the cross beam 111 to be welded is placed on the support block 105. Then, the bearing tray 104 is moved on the conveyor 101 until the bearing tray 104 moves to the welding area and contacts the blocking cylinder 103 to block the bearing tray 104. Then, the electric telescopic rod 106 is started to extend and contact the connecting plate 108, pushing the connecting plate 108 on the left side towards the support block 105, and at the same time driving the support block 107 to move. When the support block 107 moves, it will also drive the connecting rod 112 on the left side to rotate, thereby rotating the rotating disc 113, driving the connecting rod 112 on the right side to rotate, and pulling the support block 107 on the right side to move, making the two support blocks 107 approach each other, so that the two side brackets 110 approach the cross beam 111 at the same time.

[0047] The splicing mechanism 1 further includes spring plates 115 slidably connected to the inner walls of the support blocks 107. The side walls of the four spring plates 115 are fixedly connected to the side walls of the L-shaped rods 114. Two air delivery hoses 116 are connected through the inner walls of the four support blocks 107. The outer walls of the eight air delivery hoses 116 are connected through the inner walls of the rubber clamping blocks 109. Two spring extrusion plates 117 are slidably connected to the tops of the two support blocks 105;

[0048] Among them, the bottom of each of the four spring pressing plates 117 is fixedly connected with an inclined panel 118. At the side walls of the two supporting blocks two 107 on the left, connecting rods one 119 are fixedly connected. At the side walls of the two connecting rods one 119, rollers 120 are rotatably connected. The outer walls of the two connecting rods one 119 are slidably connected with the inner walls of the supporting blocks one 105. At the same time, when the supporting block two 107 approaches the supporting block one 105, since the spring plate 115 is in a static state, when the supporting block two 107 moves, the spring plate 115 will squeeze the gas in the supporting block two 107. At the same time, the spring plate 115 will accumulate the resilience force. The squeezed gas will enter the rubber clamping block 109 through the air delivery hose 116, making the rubber clamping block 109 expand and exert a greater clamping force on the side bracket 110. Since the air delivery hose 116 has elastic and can be stretched, when the rubber clamping block 109 moves, it will pull the air delivery hose 116 to move together, enabling the rubber clamping block 109 to move smoothly. At the same time, when the supporting block two 107 on the left moves, it will also drive the connecting rod one 119 to move, driving the roller 120 to move and contact the inclined surface of the inclined panel 118. The roller 120 will then squeeze the inclined panel 118, causing the two inclined panels 118 to move away from each other, driving the spring pressing plate 117 to squeeze the cross beam 111, thereby stabilizing the cross beam 111, achieving clamping of the side bracket 110 and the cross beam 111 simultaneously until the side wall of the side bracket 110 is in contact with the side wall of the cross beam 111. Finally, the side bracket 110 and the cross beam 111 are welded by the welding robot 102. By clamping the side bracket 110 and the cross beam 111 simultaneously, the positions of the side bracket 110 and the cross beam 111 can be kept consistent, thereby reducing the offset caused by the movement of the side bracket 110 and ensuring that the contact surfaces of the two contact stably.

[0049] Embodiment 2. Please refer to Figure 6 - Figure 10 , the present invention is an electric tricycle frame welding production line. On the basis of Embodiment 1, the reciprocating mechanism 2 further includes racks 205 fixedly connected to the side walls of the supporting blocks two 107. The tops of the four racks 205 are meshed with the outer walls of the gear rods 202. The outer walls of the four gear rods 202 are fixedly connected with clockwork springs 204. Four jacking plates 207 are arranged on the top of the carrying tray 104;

[0050] Among them, two spring return rods 206 are slidably connected to the inner walls of the four jacking plates 207, and the bottoms of the eight spring return rods 206 are fixedly connected to the top of the bearing tray 104. Using the force of the movement of the second support block 107, when the second support block 107 approaches the first support block 105, it will also drive the rack 205 to mesh with the gear rod 202, so that the gear rod 202 rotates. At the same time, the clockwork spring 204 is tightened to accumulate the resilience. When the side bracket 110 is in contact with the cross beam 111, the rack 205 will be separated from the gear rod 202. At this time, the limit on the clockwork spring 204 disappears, and the resilience of the clockwork spring 204 will be released, causing the gear rod 202 to rotate again, and the swing block 203 to rotate. When the swing block 203 contacts the jacking plate 207, it will jack up the jacking plate 207 and squeeze the spring return rod 206, allowing the spring return rod 206 to accumulate the resilience.

[0051] The adsorption mechanism 3 further includes two second connecting rods 304 fixedly connected to the bottom of the jacking plate 207. Two first fixing rods 306 are fixedly connected to the bottoms of the four first sliding plates 302. Four rotating frames 305 are rotatably connected to the inner walls of the two first support blocks 105. The outer walls of the eight rotating frames 305 are slidably connected to the outer walls of the second connecting rods 304, and the outer walls of the eight rotating frames 305 are slidably connected to the outer walls of the first fixing rods 306. Using the force of the movement of the jacking plate 207, when the jacking plate 207 rises, it will also drive the second connecting rod 304 to rise, so that the second connecting rod 304 slides in the rotating frame 305, driving the rotating frame 305 to rotate, tilting the rotating frame 305, thereby pulling the first fixing rod 306 down and pulling the first sliding plate 302 down. When the first sliding plate 302 descends, a negative pressure is generated at the top of the first sliding plate 302, and the negative pressure is transmitted to the cross beam 111 through the suction cup 303 to adsorb the cross beam 111, providing secondary fixation for the cross beam 111, effectively preventing the jacking plate 207 from contacting the cross beam 111 when the spring pressing plate 117 does not generate a large pressing force, which may cause the cross beam 111 to shift and affect the subsequent fitting of the side bracket 110 and the cross beam 111.

[0052] The adsorption mechanism 3 further includes four connecting frames 307 fixedly connected to the top of the bearing tray 104. Four second sliding plates 308 are slidably connected to the inner walls of the four connecting frames 307. Two second fixing rods 309 are fixedly connected to the bottoms of the four second sliding plates 308. Two air blowing pipes 310 are connected through the inner walls of the four connecting frames 307. Using the force of the movement of the second connecting rod 304, when the second connecting rod 304 rises, it will also contact the second fixing rod 309, thereby pushing the second fixing rod 309 up, driving the second sliding plate 308 up. When the second sliding plate 308 rises, it will squeeze the gas in the connecting frame 307, and the squeezed gas will enter the air blowing pipe 310 and be ejected through the air blowing pipe 310 onto the contact surface between the cross beam 111 and the side bracket 110.

[0053] The number of the above components is not limited, and those skilled in the relevant art can freely set it according to actual needs, as long as the above components are installed at the corresponding connection positions of the components.

[0054] The production method of the electric tricycle frame welding production line includes the following steps:

[0055] S1: Double clamping;

[0056] S2: Slight tapping;

[0057] S3: Adsorption fixation.

[0058] A specific application of this embodiment is as follows: When the present invention is in use, the staff places the side bracket 110 to be welded on the second support block 107. During the placement process, the rubber clamping block 109 will be squeezed, thereby squeezing the spring extrusion rod. Through the resilience of the spring extrusion rod, the rubber clamping block 109 initially clamps the side bracket 110. At the same time, the cross beam 111 to be welded is placed on the first support block 105, and then the carrying tray 104 is moved on the conveyor 101 until the carrying tray 104 moves to the welding area and contacts the blocking cylinder 103 to block the carrying tray 104. Then, the electric telescopic rod 106 is started to extend and contact the connecting plate 108, pushing the connecting plate 108 on the left side towards the first support block 105, and at the same time driving the second support block 107 to move. When the second support block 107 moves, it will also drive the left connecting rod 112 to rotate, thereby rotating the rotating disk 113 and driving the right connecting rod 112 to rotate, pulling the right second support block 107 to move, making the two second support blocks 107 approach each other, so that the two side brackets 110 approach the cross beam 111 at the same time. At the same time, when the second support block 107 approaches the first support block 105, since the spring plate 115 is in a static state, when the second support block 107 moves, the spring plate 115 will squeeze the gas in the second support block 107, and at the same time, let the spring plate 115 accumulate resilience. The squeezed gas will enter the rubber clamping block 109 through the air delivery hose 116, making the rubber clamping block 109 expand and exert a greater clamping force on the side bracket 110. Since the air delivery hose 116 has a stretchable elasticity, when the rubber clamping block 109 moves, it will pull the air delivery hose 116 to move together, enabling the rubber clamping block 109 to move smoothly. At the same time, when the left second support block 107 moves, it will also drive the first connecting rod 119 to move, driving the roller 120 to move and contact the inclined surface of the inclined panel 118. The roller 120 will squeeze the inclined panel 118, making the two inclined panels 118 move away from each other, driving the spring extrusion plate 117 to squeeze the cross beam 111, thereby stabilizing the cross beam 111, realizing the simultaneous clamping of the side bracket 110 and the cross beam 111 until the side wall of the side bracket 110 fits the side wall of the cross beam 111. Finally, the side bracket 110 and the cross beam 111 are welded by the welding robot 102. By simultaneously clamping the side bracket 110 and the cross beam 111, the positions of the side bracket 110 and the cross beam 111 can be kept consistent, thereby reducing the offset caused by the movement of the side bracket 110 and ensuring that the contact surfaces of the two stably contact;

[0059] Secondly, when the second support block 107 approaches the first support block 105, it will also drive the rack 205 to engage with the gear rod 202, causing the gear rod 202 to rotate. At the same time, the clockwork spring 204 will be tightened to accumulate the resilience. When the side bracket 110 is in contact with the cross beam 111, the rack 205 will be separated from the gear rod 202. At this time, the limit on the clockwork spring 204 disappears, and the resilience of the clockwork spring 204 will be released, causing the gear rod 202 to rotate again and the swing block 203 to rotate. When the swing block 203 contacts the jacking plate 207, it will jack up the jacking plate 207, squeeze the spring return rod 206, and let the spring return rod 206 accumulate the resilience, so that the top of the jacking plate 207 contacts the bottoms of the side bracket 110 and the cross beam 111 respectively. When the swing block 203 is separated from the jacking plate 207, the resilience of the spring return rod 206 will be released, causing the jacking plate 207 to return to its original position until the swing block 203 rotates and jacks up the jacking plate 207 again until the resilience of the clockwork spring 204 is completely released. During the release process, the jacking plate 207 can move up and down reciprocally, thereby slightly knocking on the side bracket 110 and the cross beam 111, effectively eliminating the gap between their mating surfaces, adjusting the fit between the side bracket 110 and the cross beam 111, and reducing the occurrence of local poor contact or gaps;

[0060] Secondly, when the jacking plate 207 rises, it will also drive the second connecting rod 304 to rise, causing the second connecting rod 304 to slide within the rotating frame 305, driving the rotating frame 305 to rotate, tilting the rotating frame 305, thereby pulling the first fixed rod 306 down and pulling the first sliding plate 302 down. When the first sliding plate 302 descends, a negative pressure is generated at the top of the first sliding plate 302. The negative pressure is transmitted to the cross beam 111 through the suction cup 303 to adsorb the cross beam 111, providing secondary fixation for the cross beam 111, effectively preventing the cross beam 111 from shifting when the spring pressing plate 117 does not generate a large pressing force and the jacking plate 207 contacts the cross beam 111, which may affect the subsequent fitting of the side bracket 110 and the cross beam 111;

[0061] Secondly, when the second connecting rod 304 rises, it will also contact the second fixed rod 309, thereby pushing the second fixed rod 309 up and driving the second sliding plate 308 up. When the second sliding plate 308 rises, it will squeeze the gas within the connecting frame 307. The squeezed gas will enter the blow pipe 310 and be ejected from the blow pipe 310 onto the contact surface between the cross beam 111 and the side bracket 110 to clean the contact surface between the cross beam 111 and the side bracket 110, effectively preventing uneven contact caused by impurities or dust and enabling better bonding between the two during welding;

[0062] Among them, after the side bracket 110 is welded to the cross beam 111, the electric telescopic rod 106 is retracted to separate from the connecting plate 108. At this time, since the side bracket 110 is welded to the cross beam 111, the resilience of the spring plate 115 cannot be released. Then, the blocking cylinder 103 is retracted to cancel the blocking of the bearing tray 104, allowing the bearing tray 104 to flow into the next process for welding.

[0063] The preferred embodiments of the present invention disclosed above are only used to help illustrate the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to the specific embodiments described. Obviously, many modifications and variations can be made according to the content of this specification. These embodiments are selected and specifically described in this specification to better explain the principles and practical applications of the present invention, so that those skilled in the art can well understand and utilize the present invention. The present invention is only limited by the claims and their full scope and equivalents.

Claims

1. An electric tricycle frame welding production line includes a splicing mechanism (1). The splicing mechanism (1) further includes a conveyor (101) and a welding robot (102). A carrying tray (104) is placed on the top of the conveyor (101). A blocking cylinder (103) is fixedly connected to the side wall of the conveyor (101). Two first support blocks (105) are fixedly connected to the top of the carrying tray (104), and it is characterized in that, Further comprising: A reciprocating mechanism (2), the reciprocating mechanism (2) includes four fixing frames (201) fixedly connected to the top of the carrying tray (104), and a gear rod (202) is rotatably connected to the inner wall of each of the four fixing frames (201), and a swinging block (203) is fixedly connected to the outer wall of each of the four gear rods (202); An adsorption mechanism (3), the adsorption mechanism (3) includes two fixing frames (301) fixedly connected to the inner wall of the first support block (105), a first sliding plate (302) is slidably connected to the inner wall of each of the four fixing frames (301), and three suction cups (303) are fixedly connected to the top of each of the four fixing frames (301); The splicing mechanism (1) further includes an electric telescopic rod (106) fixedly connected to the side wall of the conveyor (101), four second support blocks (107) are slidably connected to the top of the carrying tray (104), the four second support blocks (107) are grouped in pairs, a connecting plate (108) is fixedly connected to the side wall of each of the two groups of second support blocks (107), and two rubber clamping blocks (109) are slidably connected to the top of each of the four second support blocks (107); Wherein, a spring extrusion rod is fixedly connected to the side wall of each of the eight rubber clamping blocks (109), and the outer wall of each of the eight spring extrusion rods is slidably connected to the inner wall of the second support block (107); The splicing mechanism (1) further includes two side brackets (110) arranged on the top of the carrying tray (104), the bottom of each of the two side brackets (110) is in contact with the bottom of the second support block (107), two cross beams (111) are placed on the top of each of the two first support blocks (105), and a connecting rod (112) is rotatably connected to the side wall of each of the four second support blocks (107); Wherein, a rotating disc (113) is rotatably connected to the side wall of each of the two first support blocks (105), the inner wall of each of the two rotating discs (113) is rotatably connected to the outer wall of the connecting rod (112), and two L-shaped rods (114) are fixedly connected to the side wall of each of the two first support blocks (105); The reciprocating mechanism (2) further includes a rack (at 205) fixedly connected to the side wall of the second support block (107), the top of each of the four racks (205) is meshed with the outer wall of the gear rod (202), a clockwork spring (204) is fixedly connected to the outer wall of each of the four gear rods (202), and four lifting plates (207) are arranged on the top of the carrying tray (104); Wherein, two spring return rods (206) are slidably connected to the inner wall of each of the four lifting plates (207), and the bottom of each of the eight spring return rods (206) is fixedly connected to the top of the carrying tray (104); The adsorption mechanism (3) further includes two second connecting rods (304) fixedly connected to the bottom of the jacking plate (207). Two first fixing rods (306) are fixedly connected to the bottom of each of the four first sliding plates (302). Four rotating frames (305) are rotatably connected to the inner walls of the two first supporting blocks (105). The inner walls of the eight rotating frames (305) are slidably connected to the outer walls of the second connecting rods (304), and the inner walls of the eight rotating frames (305) are slidably connected to the outer walls of the first fixing rods (306).

2. The electric tricycle frame welding production line according to claim 1, wherein: The splicing mechanism (1) further includes a spring plate (115) slidably connected to the inner wall of the second supporting block (107). The side walls of the four spring plates (115) are fixedly connected to the side walls of the L-shaped rods (114). Two air delivery hoses (116) are connected through the inner walls of the four second supporting blocks (107). The outer walls of the eight air delivery hoses (116) are connected through the inner walls of the rubber clamping blocks (109). Two spring pressing plates (117) are slidably connected to the tops of the two first supporting blocks (105). Among them, the bottom of each of the four spring pressing plates (117) is fixedly connected with an inclined panel (118). Connecting rods one (119) are fixedly connected to the side walls of the two second supporting blocks (107) on the left side. Rollers (120) are rotatably connected to the side walls of the two connecting rods one (119). The outer walls of the two connecting rods one (119) are slidably connected to the inner walls of the first supporting blocks (105).

3. The welding production line for the frame of an electric tricycle according to claim 2, characterized in that: The adsorption mechanism (3) further includes four connecting frames (307) fixedly connected to the top of the carrying tray (104). Second sliding plates (308) are slidably connected to the inner walls of the four connecting frames (307). Two second fixing rods (309) are fixedly connected to the bottom of the four second sliding plates (308). Two air blowing pipes (310) are connected through the inner walls of the four connecting frames (307).

4. A production method of a welding production line for an electric tricycle frame, which uses the welding production line for an electric tricycle frame as described in claim 3, and is characterized in that: It includes the following steps S1: Double clamping S2: Slight tapping S3: Adsorption and fixation

Images