Electric tricycle frame welding production line and production method

Abstract

The invention relates to the technical field of frame welding, and discloses an electro-tricycle frame welding production line and a production method.The electro-tricycle frame welding production line comprises a splicing mechanism, the splicing mechanism further comprises a conveyor and a welding robot, a bearing tray is placed on the top of the conveyor, and a side support is placed on a second supporting block; a side support is preliminarily clamped through a rubber clamping block, a cross beam is placed on a first supporting block, an electric telescopic rod is started to stretch out, a connecting plate is pushed to move to drive a second supporting block to move, a spring plate can extrude gas in the second supporting block, and the rubber clamping block expands to apply larger clamping force to the side support through a gas conveying hose; when a second supporting block moves, a first connecting rod can be driven to move, rollers are driven to move to extrude inclined panels, the two inclined panels are made to move, a spring extrusion plate extrudes the cross beam, the side support and the cross beam are clamped at the same time, the positions of the side support and the cross beam can be kept consistent, and therefore deviation generated by movement of the side support is reduced.

Description

Technical Field

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

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

[0003] Among them, the side bracket and the cross beam are the main load-bearing parts of the tricycle frame, so the welding quality of the side bracket and the cross beam is very important. During welding, the side brackets and the cross beam on both sides are often directly pushed into contact and then welded. However, direct pushing may cause the position of the side bracket and the cross beam to shift, resulting in insufficient 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] In order to solve the above technical problems, the present invention provides an electric tricycle frame welding production line, including a splicing mechanism, the splicing mechanism also includes a conveyor and a welding robot, a carrying tray is placed on the top of the conveyor, a blocking cylinder is fixedly connected to the side wall of the conveyor, and two supporting blocks are fixedly connected to the top of the carrying tray;

[0005] The reciprocating mechanism includes four fixed frames fixedly connected to the top of the carrying tray, the inner walls of the four fixed frames are rotatably connected to gear rods, and the outer walls of the four gear rods are fixedly connected to swing blocks;

[0006] The adsorption mechanism comprises two fixed frames fixedly connected to the inner wall of the support block 1, the inner walls of the four fixed frames are slidably connected to a sliding plate 1, and the tops of the four fixed frames are fixedly connected to three suction cups.

[0007] Preferably, the splicing mechanism also includes an electric telescopic rod fixedly connected to the side wall of the conveyor, and the top of the carrying tray is slidably connected to four support blocks 2, and the four support blocks 2 are grouped in twos, and the side walls of the two groups of support blocks 2 are fixedly connected to connecting plates, and the tops of the four support blocks 2 are slidably connected to two rubber clamping blocks;

[0008] The side walls of the eight rubber clamping blocks are all fixedly connected with spring extrusion rods, and the outer walls of the eight spring extrusion rods are all slidably connected with the inner wall of the second supporting block.

[0009] Preferably, the splicing mechanism further includes two side brackets arranged on the top of the carrying tray, the bottoms of the two side brackets are in contact with the bottom of the support block 2, two cross beams are placed on the tops of the two support blocks 1, and the side walls of the four support blocks 2 are rotatably connected with connecting rods;

[0010] Among them, the side walls of the two support blocks are rotatably connected with rotating disks, the inner walls of the two rotating disks are rotatably connected with the outer wall of the connecting rod, and the side walls of the two support blocks are fixedly connected with two L-shaped rods. The staff places the side bracket to be welded on the support block two. 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 performs preliminary clamping on the side bracket. At the same time, the crossbeam to be welded is placed on the support block one, and then the load-bearing tray is moved on the conveyor until the load-bearing tray moves to the welding area, so that the load-bearing tray contacts the blocking cylinder to block the load-bearing tray, and then the electric telescopic rod is started to extend and contact the connecting plate, pushing the connecting plate on the left side to move toward the direction of the support block one, and driving the support block two to move at the same time. When the support block two moves, it will also drive the connecting rod on the left side to rotate, so that the rotating disk rotates, drives the connecting rod on the right side to rotate, pulls the support block two on the right side to move, and makes the two support blocks two approach each other, so that the two side brackets are close to the crossbeam at the same time.

[0011] Preferably, the splicing mechanism also includes a spring plate slidably connected to the inner wall of the support block 2, the side walls of the four spring plates are fixedly connected to the side walls of the L-shaped rod, the inner walls of the four support blocks 2 are connected through two gas hoses, the outer walls of the eight gas hoses are connected through the inner wall of the rubber clamping block, and the tops of the two support blocks 1 are slidably connected to two spring extrusion plates;

[0012] Among them, the bottoms of the four spring extrusion plates are fixedly connected with inclined panels, the side walls of the two support blocks 2 on the left are fixedly connected with connecting rods 1, the side walls of the two connecting rods 1 are rotatably connected with rollers, and the outer walls of the two connecting rods 1 are slidably connected with the inner wall of the support block 1. At the same time, when the support block 2 is close to the support block 1, since the spring plate is in a stationary state, when the support block 2 moves, the spring plate will squeeze the gas in the support block 2, and at the same time, the spring plate will accumulate resilience, and the squeezed gas will enter the rubber clamping block through the gas hose, so that the rubber clamping block expands and exerts a greater clamping force on the side bracket. Since the gas hose has retractable elasticity, the rubber clamping block moves When it moves, it will pull the air hose to move together, so that the rubber clamping block can move smoothly. At the same time, when the support block 2 on the left side moves, it will also drive the connecting rod 1 to move, and drive the roller to move and contact the inclined surface of the inclined plate. The roller will squeeze the inclined plate to make the two inclined plates move away from each other, and drive the spring squeezing plate to squeeze the beam, thereby stabilizing the beam and clamping the side bracket and the beam at the same time until the side wall of the side bracket fits with the side wall of the beam. Finally, the side bracket and the beam are welded by the welding robot. By clamping the side bracket and the beam at the same time, the positions of the side bracket and the 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 are in stable contact.

[0013] Preferably, the reciprocating mechanism further comprises racks fixedly connected to the two side walls of the support block, the tops of the four racks are meshed and connected with the outer wall of the gear rod, the outer walls of the four gear rods are fixedly connected with springs, and the top of the carrying tray is provided with four lifting plates;

[0014] Among them, two spring return rods are slidably connected to the inner walls of the four jacking plates, and the bottoms of the eight spring return rods are fixedly connected to the top of the carrying tray. By utilizing the force of the movement of the support block two, when the support block two is close to the support block one, it will also drive the rack and the gear rod to engage, so that the gear rod rotates, and at the same time, the clockwork spring is tightened to accumulate rebound force. When the side bracket is in contact with the crossbeam, the rack will separate from the gear rod. At this time, the limit on the clockwork spring disappears, and the rebound force of the clockwork spring will be released, causing the gear rod to rotate again, allowing the swing block to rotate, and when the swing block contacts the jacking plate, it will lift the jacking plate and squeeze the spring return rod, allowing the spring return rod to accumulate rebound force.

[0015] Preferably, the adsorption mechanism also includes two connecting rods 2 fixedly connected to the bottom of the jacking plate, the bottoms of the four sliding plates are fixedly connected to two fixing rods 1, the inner walls of the two supporting blocks 1 are rotatably connected to four rotating frames, the inner walls of the eight rotating frames are slidably connected to the outer walls of the connecting rod 2, and the inner walls of the eight rotating frames are slidably connected to the outer wall of the fixing rod 1. The force of the jacking plate moving upward will also drive the connecting rod 2 to rise, so that the connecting rod 2 slides in the rotating frame, driving the rotating frame to rotate and tilt the rotating frame, thereby pulling the fixing rod 1 down and pulling the sliding plate 1 down. When the sliding plate 1 drops, negative pressure is generated on the top of the sliding plate 1, and the negative pressure is transmitted to the cross beam through the suction cup, so that the cross beam is adsorbed and the cross beam is fixed for the second time, effectively preventing the jacking plate from contacting the cross beam when the spring extrusion plate does not generate a large extrusion force, which may cause the cross beam to deviate and affect the subsequent fitting of the side bracket and the cross beam.

[0016] Preferably, the adsorption mechanism also includes four connecting frames fixedly connected to the top of the carrying tray, the inner walls of the four connecting frames are slidably connected with sliding plates 2, the bottoms of the four sliding plates 2 are fixedly connected with two fixed rods 2, and the inner walls of the four connecting frames are through-connected with two blowing pipes, and the force of the moving connecting rod 2 is utilized, when the connecting rod 2 rises, it will also contact the fixed rod 2, thereby pushing the fixed rod 2 to rise, driving the sliding plate 2 to rise, and when the sliding plate 2 rises, it will squeeze the gas in the connecting frame, and the squeezed gas will enter the blowing pipe and be sprayed through the blowing pipe toward the contact surface of the cross beam and the side bracket.

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

[0018] S1: double clamping;

[0019] S2: light tapping;

[0020] S3: Adsorption fixation.

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

[0022] (1) When the present invention is used, a worker places the side bracket to be welded on the second support block. During the placement process, the rubber clamping block is squeezed, thereby squeezing the spring squeezing rod. Through the resilience of the spring squeezing rod, the rubber clamping block performs preliminary clamping on the side bracket. At the same time, the crossbeam to be welded is placed on the first support block. Then, the carrying tray is moved on the conveyor until the carrying tray moves to the welding area, so that the carrying tray contacts the blocking cylinder to block the carrying tray. Then, the electric telescopic rod is started to extend and contact the connecting plate, pushing the connecting plate on the left side to move toward the direction of the first support block, while driving the second support block to move. When the second support block moves, it also drives the connecting rod on the left side to rotate, thereby causing the rotating disk to rotate, driving the connecting rod on the right side to rotate, pulling the second support block on the right side to move, and allowing the two second support blocks to approach each other, so that the two side brackets are close to the crossbeam at the same time. At the same time, when the second support block is close to the first support block, since the spring plate is in a stationary state, the second support block When moving, the spring plate will squeeze the gas in the second support block, and at the same time, the spring plate will accumulate resilience. The squeezed gas will enter the rubber clamping block through the gas hose, allowing the rubber clamping block to expand and exert a greater clamping force on the side bracket. Since the gas hose has retractable elasticity, when the rubber clamping block moves, it will pull the gas hose to move together, so that the rubber clamping block can move smoothly. At the same time, when the second support block on the left side moves, it will also drive the connecting rod 1 to move, driving the roller to move and contact the inclined surface of the inclined plate. The roller will squeeze the inclined plate, allowing the two inclined plates to move away from each other, driving the spring squeezing plate to squeeze the crossbeam, thereby stabilizing the crossbeam and clamping the side bracket and the crossbeam at the same time until the side wall of the side bracket fits with the side wall of the crossbeam. Finally, the side bracket and the crossbeam are welded by the welding robot. By clamping the side bracket and the crossbeam at the same time, the positions of the side bracket and the crossbeam 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 are in stable contact.

[0023] (2) The present invention utilizes the force of the movement of the second support block. When the second support block approaches the first support block, it will also drive the rack to mesh with the gear rod, thereby rotating the gear rod. At the same time, the spring will be tightened to accumulate rebound force. When the side bracket fits with the crossbeam, the rack will separate from the gear rod. At this time, the limit on the spring will disappear, and the rebound force of the spring will be released, causing the gear rod to rotate again, allowing the swing block to rotate. When the swing block contacts the lifting plate, it will lift the lifting plate and squeeze the spring reset rod, allowing the spring reset rod to accumulate rebound force. The elastic force makes the top of the lifting plate contact with the bottom of the side bracket and the crossbeam respectively. When the swing block is separated from the lifting plate, the rebound force of the spring return rod will be released, allowing the lifting plate to return to its original position until the swing block lifts the lifting plate again during the rotation process until the rebound force of the clockwork spring is completely released. During the release process, the lifting plate can be moved back and forth up and down, thereby lightly knocking on the side bracket and the crossbeam, effectively eliminating the gap between the mating surfaces of the two, 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 of the movement of the lifting plate. When the lifting plate rises, it also drives the connecting rod 2 to rise, so that the connecting rod 2 slides in the rotating frame, drives the rotating frame to rotate, and tilts the rotating frame, thereby pulling the fixed rod 1 down, pulling the sliding plate 1 down, and when the sliding plate 1 descends, a negative pressure is generated on the top of the sliding plate 1. The negative pressure is transmitted to the beam through the suction cup, and the beam is adsorbed, and the beam is fixed for a second time, which effectively prevents the lifting plate from contacting the beam when the spring extrusion plate does not generate a large extrusion force, which may cause the beam to deviate and affect the subsequent fit between the side bracket and the beam.

[0025] (4) The present invention utilizes the force of the movement of the connecting rod 2. When the connecting rod 2 rises, it will also contact the fixed rod 2, thereby pushing the fixed rod 2 to rise, driving the sliding plate 2 to rise. When the sliding plate 2 rises, it will squeeze the gas in the connecting frame. The squeezed gas will enter the air blowing pipe and be sprayed toward the contact surface between the crossbeam and the side bracket through the air blowing pipe, thereby cleaning the contact surface between the crossbeam and the side bracket, effectively preventing uneven contact caused by impurities or dust, and allowing the two to be better combined 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 accompanying drawings required for describing the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

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

[0028] Figure 2It is a schematic diagram of the overall structure of the present invention;

[0029] Figure 3 It is a second cross-sectional schematic diagram of the support block of the present invention;

[0030] Figure 4 It is an exploded schematic diagram of some components of the splicing mechanism of the present invention;

[0031] Figure 5 For the present invention Figure 4 A is an enlarged schematic diagram;

[0032] Figure 6 It is a schematic diagram of some components of the reciprocating mechanism of the present invention;

[0033] Figure 7 It is a cross-sectional schematic diagram of a support block of the present invention;

[0034] Figure 8 For the present invention Figure 7 A magnified schematic diagram of B;

[0035] Fig. 9 It is a cross-sectional schematic diagram of the connection frame of the present invention;

[0036] Fig.10 It is a schematic diagram of the working process of the present invention.

[0037] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0038] In the figure: 1, splicing mechanism; 101, conveyor; 102, welding robot; 103, blocking cylinder; 104, carrying tray; 105, support block 1; 106, electric telescopic rod; 107, support block 2; 108, connecting plate; 109, rubber clamping block; 110, side bracket; 111, crossbeam; 112, connecting rod; 113, rotating disk; 114, L-shaped rod; 115, spring plate; 116, gas hose; 117, spring extrusion plate; 118, inclined plate; 119 1. Connecting rod 1; 120. Roller; 2. Reciprocating mechanism; 201. Fixed frame; 202. Gear rod; 203. Swing block; 204. Clockwork spring; 205. Rack; 206. Spring return rod; 207. Lifting plate; 3. Adsorption mechanism; 301. Fixed frame; 302. Sliding plate 1; 303. Suction cup; 304. Connecting rod 2; 305. Rotating frame; 306. Fixed rod 1; 307. Connecting frame; 308. Sliding plate 2; 309. Fixed rod 2; 310. Blowing pipe. DETAILED DESCRIPTION

[0039] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0040] For example, see Figure 1 - Figure 5 The present invention is an electric tricycle frame welding production line, comprising a splicing mechanism 1, the splicing mechanism 1 also comprises 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, and two supporting blocks 105 are fixedly connected to the top of the carrying tray 104;

[0041] The reciprocating mechanism 2 includes four fixed frames 201 fixedly connected to the top of the carrying tray 104, the inner walls of the four fixed frames 201 are rotatably connected to gear rods 202, and the outer walls of the four gear rods 202 are fixedly connected to swing blocks 203;

[0042] The adsorption mechanism 3 includes two fixed frames 301 fixedly connected to the inner wall of the support block 105, the inner walls of the four fixed frames 301 are slidably connected to a sliding plate 1 302, and the tops of the four fixed frames 301 are fixedly connected to three suction cups 303.

[0043] The splicing mechanism 1 also includes an electric telescopic rod 106 fixedly connected to the side wall of the conveyor 101, and four support blocks 107 are slidably connected to the top of the carrying tray 104. The four support blocks 107 are grouped in pairs, and the side walls of the two groups of support blocks 107 are fixedly connected with a connecting plate 108. The tops of the four support blocks 107 are slidably connected to two rubber clamping blocks 109;

[0044] The side walls of the eight rubber clamping blocks 109 are all fixedly connected with spring extrusion rods, and the outer walls of the eight spring extrusion rods are all slidably connected with the inner wall of the second support block 107 .

[0045] The splicing mechanism 1 also 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 bottom of the second support block 107, two cross beams 111 are placed on the top of the two first support blocks 105, and the side walls of the four second support blocks 107 are rotatably connected with connecting rods 112;

[0046] Among them, the side walls of the two support blocks 105 are rotatably connected with rotating disks 113, the inner walls of the two rotating disks 113 are rotatably connected with the outer walls of the connecting rod 112, and the side walls of the two support blocks 105 are fixedly connected with two L-shaped rods 114. The staff places the side bracket 110 to be welded on the support block 2 107. During the placement process, the rubber clamping block 109 is squeezed, thereby squeezing the spring squeezing rod. Through the rebound force of the spring squeezing rod, the rubber clamping block 109 performs preliminary clamping on the side bracket 110. At the same time, the crossbeam 111 to be welded is placed on the 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, so that the carrying tray 104 contacts with the blocking cylinder 103 to block the carrying tray 104, and then the electric telescopic rod 106 is started to extend and contact with the connecting plate 108, pushing the connecting plate 108 on the left side to move toward the support block 105, and at the same time driving the support block 2 107 to move. When the support block 2 107 moves, it will also drive the connecting rod 112 on the left side to rotate, so that the rotating disk 113 rotates, driving the connecting rod 112 on the right side to rotate, pulling the support block 2 107 on the right side to move, so that the two support blocks 2 107 are close to each other, so that the two side brackets 110 are close to the crossbeam 111 at the same time.

[0047] The splicing mechanism 1 also includes a spring plate 115 slidably connected to the inner wall of the support block 107, the side walls of the four spring plates 115 are fixedly connected to the side walls of the L-shaped rod 114, the inner walls of the four support blocks 107 are connected through two gas hoses 116, the outer walls of the eight gas hoses 116 are connected through the inner wall of the rubber clamping block 109, and the tops of the two support blocks 105 are slidably connected to two spring extrusion plates 117;

[0048] Among them, the bottoms of the four spring squeezing plates 117 are fixedly connected with inclined panels 118, the side walls of the two support blocks 107 on the left are fixedly connected with connecting rods 119, the side walls of the two connecting rods 119 are rotatably connected with rollers 120, and the outer walls of the two connecting rods 119 are slidably connected with the inner walls of the support block 105. At the same time, when the support block 107 is close to the support block 105, since the spring plate 115 is in a static state, when the support block 107 moves, the spring plate 115 will squeeze the gas in the support block 107, and at the same time, the spring plate 115 will accumulate resilience, and the squeezed gas will enter the rubber clamping block 109 through the gas hose 116, so that the rubber clamping block 109 expands and applies a greater clamping force to the side bracket 110. Since the gas hose 116 has retractable elasticity, when the rubber clamping block 109 moves, Pull the air hose 116 to move together so that the rubber clamping block 109 can move smoothly. At the same time, when the support block 2 107 on the left side moves, it will also drive the connecting rod 119 to move, and drive the roller 120 to move and contact the inclined surface of the inclined plate 118. The roller 120 will squeeze the inclined plate 118 to make the two inclined plates 118 move away from each other, and drive the spring squeezing plate 117 to squeeze the beam 111, so that the beam 111 is stable, and the side bracket 110 and the beam 111 are clamped at the same time until the side wall of the side bracket 110 fits with the side wall of the beam 111. Finally, the side bracket 110 and the beam 111 are welded by the welding robot 102. By clamping the side bracket 110 and the beam 111 at the same time, the positions of the side bracket 110 and the 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 are in stable contact.

[0049] For example 2, please refer to Figure 6 - Fig.10 The present invention is an electric tricycle frame welding production line. On the basis of the first embodiment, the reciprocating mechanism 2 further includes a rack 205 fixedly connected to the side wall of the second support block 107, the tops of the four racks 205 are meshed and connected with the outer wall of the gear rod 202, the outer walls of the four gear rods 202 are fixedly connected with a clockwork spring 204, and the top of the carrying tray 104 is provided with four lifting plates 207;

[0050] Among them, two spring return rods 206 are slidably connected to the inner walls of the four lifting plates 207, and the bottoms of the eight spring return rods 206 are fixedly connected to the top of the carrying tray 104. By utilizing the force of the movement of the support block 207, when the support block 207 is close to the support block 105, the rack 205 will be driven to engage with the gear rod 202, so that the gear rod 202 rotates. At the same time, the clockwork spring 204 is tightened to accumulate resilience. When the side bracket 110 is in contact with the cross beam 111, the rack 205 will separate 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, allowing the swing block 203 to rotate. When the swing block 203 contacts the lifting plate 207, the lifting plate 207 will be lifted up, squeezing the spring return rod 206, so that the spring return rod 206 accumulates resilience.

[0051] The adsorption mechanism 3 also includes two connecting rods 2 304 fixedly connected to the bottom of the lifting plate 207, two fixed rods 1 306 are fixedly connected to the bottom of the four sliding plates 1 302, four rotating frames 305 are rotatably connected to the inner walls of the two supporting blocks 105, the inner walls of the eight rotating frames 305 are slidably connected to the outer walls of the connecting rods 2 304, and the inner walls of the eight rotating frames 305 are slidably connected to the outer walls of the fixed rods 1 306. The force of the lifting plate 207 moving will drive the connecting rods 2 304 to rise when the lifting plate 207 rises, so that the connecting rods 2 304 can rotate and rotate. The movable frame 305 slides inside, driving the rotating frame 305 to rotate and tilt the rotating frame 305, thereby pulling the fixed rod 306 down, pulling the sliding plate 302 down, and when the sliding plate 302 descends, a negative pressure is generated on the top of the sliding plate 302, and the negative pressure is transmitted to the beam 111 through the suction cup 303, so that the beam 111 is adsorbed and fixed for a second time, which effectively prevents the lifting plate 207 from contacting the beam 111 when the spring extrusion plate 117 does not generate a large extrusion force, which may cause the beam 111 to deviate, affecting the subsequent fit between the side bracket 110 and the beam 111.

[0052] The adsorption mechanism 3 also includes four connecting frames 307 fixedly connected to the top of the carrying tray 104, and the inner walls of the four connecting frames 307 are slidably connected with sliding plates 2 308, and the bottoms of the four sliding plates 2 308 are fixedly connected with two fixing rods 2 309, and the inner walls of the four connecting frames 307 are connected with two blowing pipes 310 through them. By utilizing the force of the movement of the connecting rods 2 304, when the connecting rods 2 304 rise, they will also contact the fixing rods 2 309, thereby pushing the fixing rods 2 309 to rise, and driving the sliding plates 2 308 to rise. When the sliding plates 2 308 rise, they will squeeze the gas in the connecting frames 307, and the squeezed gas will enter the blowing pipe 310 and be sprayed through the blowing pipe 310 toward the contact surface between the beam 111 and the side bracket 110.

[0053] There is no limitation on the number of the above components, and relevant technicians in the field can freely set them according to actual needs, as long as the above components are installed at the connection positions of the corresponding components.

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

[0055] S1: double clamping;

[0056] S2: light tapping;

[0057] S3: Adsorption fixation.

[0058] A specific application of this embodiment is as follows: when the present invention is used, the staff places the side bracket 110 to be welded on the support block 107. During the placement process, the rubber clamping block 109 is squeezed, thereby squeezing the spring squeezing rod. Through the resilience of the spring squeezing rod, the rubber clamping block 109 performs preliminary clamping on the side bracket 110. At the same time, the crossbeam 111 to be welded is placed on the 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, so that the carrying tray 104 contacts with the blocking cylinder 103 to block the carrying tray 104, and then the electric The movable telescopic rod 106 extends out and contacts the connecting plate 108, pushing the connecting plate 108 on the left side to move toward the support block 105, and driving the support block 2 107 to move at the same time. When the support block 2 107 moves, it also drives the connecting rod 112 on the left side to rotate, so that the rotating disk 113 rotates, driving the connecting rod 112 on the right side to rotate, pulling the support block 2 107 on the right side to move, so that the two support blocks 107 are close to each other, so that the two side brackets 110 are close to the crossbeam 111 at the same time. At the same time, when the support block 2 107 is close to the support block 1 105, since the spring plate 115 is in a stationary state, the support block 2 107 is When the support block 107 moves, the spring plate 115 will squeeze the gas in the support block 107, and at the same time, the spring plate 115 will accumulate resilience, and the squeezed gas will enter the rubber clamping block 109 through the gas hose 116, so that the rubber clamping block 109 expands and applies a greater clamping force to the side bracket 110. Since the gas hose 116 has retractable elasticity, when the rubber clamping block 109 moves, it will pull the gas hose 116 to move together, so that the rubber clamping block 109 can move smoothly. At the same time, when the support block 107 on the left side moves, it will also drive the connecting rod 119 to move, driving the roller 120 to move and the inclined plate 118 to move. When the two inclined plates 118 are in contact with each other, the roller 120 will squeeze the inclined plate 118, so that the two inclined plates 118 move away from each other, and drive the spring squeezing plate 117 to squeeze the cross beam 111, so that the cross beam 111 is stable, and the side bracket 110 and the cross beam 111 are clamped at the same time, until the side wall of the side bracket 110 fits with the side wall of the cross beam 111, and 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 at the same time, the positions of the side bracket 110 and the cross beam 111 can be kept consistent, thereby reducing the deviation caused by the movement of the side bracket 110 and ensuring that the contact surfaces of the two are in stable contact;

[0059] Secondly, when the support block 207 is close to the support block 105, the rack 205 is also driven to mesh with the gear rod 202, so that the gear rod 202 rotates, and at the same time, the spring spring 204 is tightened to accumulate resilience. When the side bracket 110 is fitted with the cross beam 111, the rack 205 is separated from the gear rod 202. At this time, the limit on the spring spring 204 disappears, and the resilience of the spring spring 204 is released, so that the gear rod 202 rotates again, and the swing block 203 rotates. When the swing block 203 contacts the lifting plate 207, the lifting plate 207 is lifted up, and the spring reset rod 206 is squeezed, so that the spring reset rod 206 accumulates resilience. The top of the lifting plate 207 is respectively in contact with the bottom of the side bracket 110 and the cross beam 111 by the force. When the swing block 203 is separated from the lifting plate 207, the resilience of the spring return rod 206 is released, allowing the lifting plate 207 to return to its original position until the swing block 203 lifts up the lifting plate 207 again during the rotation process, until the resilience of the spring spring 204 is completely released. During the release process, the lifting plate 207 can be reciprocated up and down, thereby lightly knocking the side bracket 110 and the cross beam 111, effectively eliminating the gap between the mating surfaces of the two, adjusting the matching degree between the side bracket 110 and the cross beam 111, and reducing the occurrence of local poor contact or gaps.

[0060] Secondly, when the lifting plate 207 rises, it will also drive the second connecting rod 304 to rise, so that the second connecting rod 304 can slide in the rotating frame 305, drive the rotating frame 305 to rotate, and tilt the rotating frame 305, thereby pulling the fixing rod 1 306 down, pulling the sliding plate 1 302 down, and when the sliding plate 1 302 falls, a negative pressure is generated on the top of the sliding plate 1 302, and the negative pressure is transmitted to the cross beam 111 through the suction cup 303, and the cross beam 111 is adsorbed, and the cross beam 111 is fixed for a second time, which effectively prevents the lifting plate 207 from contacting the cross beam 111 when the spring extrusion plate 117 does not generate a large extrusion force, which may cause the cross beam 111 to deviate, affecting the subsequent fit between the side bracket 110 and the cross beam 111;

[0061] Secondly, when the second connecting rod 304 rises, it will also contact the second fixing rod 309, thereby pushing the second fixing rod 309 to rise, driving the second sliding plate 308 to rise, and when the second sliding plate 308 rises, it will squeeze the gas in the connecting frame 307, and the squeezed gas will enter the blowing pipe 310, and will be sprayed toward the contact surface between the cross beam 111 and the side bracket 110 through the blowing pipe 310, so as 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 also allowing the two to be better combined during welding;

[0062] When the side bracket 110 and the cross beam 111 are welded, the electric telescopic rod 106 is retracted to separate it from the connecting plate 108. At this time, since the side bracket 110 and the cross beam 111 are welded together, the resilience of the spring plate 115 cannot be released. Then the blocking cylinder 103 is retracted to cancel the blocking of the carrying tray 104, allowing the carrying 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 implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. An electric tricycle frame welding production line, comprising a splicing mechanism (1), the splicing mechanism (1) also comprising 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), and two supporting blocks (105) are fixedly connected to the top of the carrying tray (104), characterized in that: Also includes: A reciprocating mechanism (2), the reciprocating mechanism (2) comprising four fixed frames (201) fixedly connected to the top of the carrying tray (104), the inner walls of the four fixed frames (201) being rotatably connected to gear rods (202), and the outer walls of the four gear rods (202) being fixedly connected to swing blocks (203); The adsorption mechanism (3) comprises two fixed frames (301) fixedly connected to the inner wall of the support block (105), the inner walls of the four fixed frames (301) are slidably connected to a sliding plate (302), and the tops of the four fixed frames (301) are fixedly connected to three suction cups (303).

2. The electric tricycle frame welding production line according to claim 1 is characterized in that: The splicing mechanism (1) also includes an electric telescopic rod (106) fixedly connected to the side wall of the conveyor (101); the top of the carrying tray (104) is slidably connected to four support blocks (107); the four support blocks (107) are arranged in groups of two, and the side walls of the two groups of support blocks (107) are fixedly connected to a connecting plate (108); the tops of the four support blocks (107) are slidably connected to two rubber clamping blocks (109); The side walls of the eight rubber clamping blocks (109) are all fixedly connected with spring extrusion rods, and the outer walls of the eight spring extrusion rods are all slidably connected with the inner wall of the second support block (107).

3. The electric tricycle frame welding production line according to claim 2 is characterized in that: The splicing mechanism (1) also 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 bottom of the second support block (107), two cross beams (111) are placed on the top of the two first support blocks (105), and the side walls of the four second support blocks (107) are rotatably connected with connecting rods (112); The side walls of the two support blocks (105) are rotatably connected to a rotating disk (113), the inner walls of the two rotating disks (113) are rotatably connected to the outer wall of the connecting rod (112), and the side walls of the two support blocks (105) are fixedly connected to two L-shaped rods (114).

4. The electric tricycle frame welding production line according to claim 3 is characterized in that: The splicing mechanism (1) also includes a spring plate (115) slidably connected to the inner wall of the second support block (107); the side walls of the four spring plates (115) are fixedly connected to the side walls of the L-shaped rod (114); the inner walls of the four second support blocks (107) are connected through two gas hoses (116); the outer walls of the eight gas hoses (116) are connected through the inner wall of the rubber clamping block (109); and the tops of the two first support blocks (105) are slidably connected to two spring extrusion plates (117); The bottoms of the four spring extrusion plates (117) are fixedly connected to inclined panels (118), the side walls of the two support blocks (107) on the left are fixedly connected to connecting rods (119), the side walls of the two connecting rods (119) are rotatably connected to rollers (120), and the outer walls of the two connecting rods (119) are slidably connected to the inner wall of the support block (105).

5. The electric tricycle frame welding production line according to claim 4 is characterized in that: The reciprocating mechanism (2) further comprises a rack (205) fixedly connected to the side wall of the second support block (107), the tops of the four racks (205) are meshedly connected to the outer wall of the gear rod (202), the outer walls of the four gear rods (202) are fixedly connected with a clockwork spring (204), and the top of the carrying tray (104) is provided with four lifting plates (207); Among them, two spring return rods (206) are slidably connected to the inner walls of the four lifting plates (207), and the bottoms of the eight spring return rods (206) are fixedly connected to the top of the carrying tray (104).

6. The electric tricycle frame welding production line according to claim 5, characterized in that: The adsorption mechanism (3) also includes two connecting rods (304) fixedly connected to the bottom of the lifting plate (207), the bottoms of the four sliding plates (302) are fixedly connected to two fixed rods (306), the inner walls of the two support blocks (105) are rotatably connected to four rotating frames (305), the inner walls of the eight rotating frames (305) are slidably connected to the outer walls of the connecting rods (304), and the inner walls of the eight rotating frames (305) are slidably connected to the outer walls of the fixed rods (306).

7. The electric tricycle frame welding production line according to claim 6, characterized in that: The adsorption mechanism (3) also includes four connection frames (307) fixedly connected to the top of the carrying tray (104), the inner walls of the four connection frames (307) are slidably connected with sliding plates 2 (308), the bottoms of the four sliding plates 2 (308) are fixedly connected with two fixing rods 2 (309), and the inner walls of the four connection frames (307) are connected through two blowing pipes (310).

8. A production method of an electric tricycle frame welding production line, using the electric tricycle frame welding production line as claimed in claim 7, characterized in that: The following steps are included: S1: double clamping; S2: light tapping; S3: Adsorption fixation.

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