Frame intelligent welding equipment for bicycle production and manufacturing

Abstract

The invention relates to the technical field of welding equipment, in particular to intelligent frame welding equipment for bicycle manufacturing, which comprises a worktable, a frame is connected to the middle of the top of the worktable, a laser welding robot is mounted at the top of the frame, and a rotating ring positioned on the outer side of the frame is arranged at the top of the worktable. Electric telescopic rods are evenly installed on the top of the rotating ring at intervals in the circumferential direction, each electric telescopic rod is connected with a clamping frame used for clamping a vertical pipe, connecting plates are evenly installed on the top of the rotating ring at intervals in the circumferential direction, and each connecting plate is rotationally connected with an electric clamp used for clamping a wishbone through a rotating shaft. Through cooperation of the clamping frames and the electric clamps which are arranged on the rotating ring at intervals, automatic butt joint of a vertical pipe and a wishbone can be achieved, the rotating ring rotates to rotate the welded bicycle front fork away from the welding area of the laser welding robot, and the vertical pipe and the wishbone needing to be welded are conveyed to the welding area of the laser welding robot; therefore, the welding operation can be continuously and efficiently performed.

Description

Technical Field

[0001] The invention relates to the technical field of welding equipment, and in particular to intelligent welding equipment for bicycle frames used in bicycle manufacturing. Background Art

[0002] The bicycle frame is the core structure of the entire bicycle. It not only supports the weight of the rider, but also connects various key components, such as the front fork, rear fork, seat, pedals, etc. The bicycle front fork consists of a fork crown, a vertical tube, a wishbone, a fork leg and a shock absorber. The fork crown is the part that connects the vertical tube and the wishbone. The wishbone is two tubular structures extending downward from the fork crown, forming an open "U"-shaped space between them to accommodate the front wheel. The vertical tube is a tubular structure extending upward from the fork crown.

[0003] Normally, the sequence for welding a bicycle fork is as follows: 1. Weld the wishbone and the wishbone crown.

[0004] 2. Weld the stem and fork crown.

[0005] At present, the stem and fork crown are generally welded together by a laser welding robot. During the welding work, the following problems exist: 1. Manual docking and fixing: It is necessary to manually insert the vertical tube into the fork crown to achieve the docking of the vertical tube and the fork bone, and then manually fix the vertical tube and the fork bone. After the welding work is completed, it is necessary to manually unlock the vertical tube and the fork bone.

[0006] 2. Complicated operation: Each welding requires manual docking of the vertical pipe and the fork bone, as well as manual fixing and loosening of the vertical pipe and the fork bone. The operation is cumbersome, making it difficult to achieve continuous welding work, resulting in low efficiency.

[0007] 3. Obstructed welding path: The existing equipment for fixing vertical pipes and fork bones easily obstructs the welding path of the laser welding robot, causing the laser welding robot to frequently adjust the welding path, increasing the welding time and complexity.

[0008] 4. Increased programming complexity: In order to avoid fixed equipment, complex path planning programs need to be written, which increases programming time and difficulty, may lead to programming errors, and affect welding quality and efficiency. Summary of the invention

[0009] The object of the present invention is to provide an intelligent welding device for bicycle frames used in bicycle manufacturing, which can continuously and efficiently perform welding work.

[0010] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an intelligent welding device for bicycle frames for manufacturing, comprising a workbench, a frame connected in the middle of the top of the workbench, a laser welding robot installed on the top of the frame, a rotating ring located outside the frame is provided on the top of the workbench, electric telescopic rods are installed at even intervals along the circumferential direction on the top of the rotating ring, each electric telescopic rod is connected to a clamping frame for clamping a vertical tube, the clamping frame comprises a vertical plate connected to the electric telescopic rod, a connecting plate is rotatably connected to the upper part of the vertical plate through a rotating shaft, an L-shaped support plate is connected to the top of the connecting plate, and an arc for accommodating the vertical tube is opened on the L-shaped support plate shaped groove, an arc-shaped clamping block is connected to the side of the L-shaped support plate away from the frame, a support block for supporting the connecting plate is connected to the side of the vertical plate facing the frame, connecting plates are installed on the top of the rotating ring at uniform intervals along the circumferential direction, and each connecting plate is rotatably connected to an electric clamp for clamping the fork bone through a rotating shaft. The electric clamp includes a clamping plate connected to the end of the rotating shaft facing away from the frame, two arc-shaped accommodating grooves for accommodating the fork bone are symmetrically opened on the top of the clamping plate, two cylinders are symmetrically installed on the bottom of the clamping plate, and L-shaped clamping blocks are connected to the cylinders. A power component for driving the rotating ring to rotate is provided in the workbench, and a driving component for driving the rotating shaft to rotate is provided in the frame.

[0011] Preferably, the driving assembly includes an electric slide rail installed in the frame, a motor 2 is installed on the slider of the electric slide rail, a clamping block is connected to the output shaft of the motor 2, and a chuck engaging with the clamping block is connected to one end of each rotating shaft facing the frame.

[0012] Preferably, two column gears are symmetrically connected to the rotating shaft with the connecting plate as the center of symmetry, two fixed plates are connected to the side of the workbench top close to the rotating ring, and racks are connected to the tops of the two fixed plates. The column gears can engage with the racks when moving toward the fixed plates.

[0013] Preferably, a discharge mechanism is provided on the side of the top of the workbench close to the fixed plate, and the discharge mechanism includes two support plates connected to the side of the top of the workbench close to the fixed plate, and the upper parts of the two support plates close to each other are connected to arc plates, and the tops of the arc plates are connected to wedge blocks.

[0014] Preferably, a forkbone feeding mechanism is provided on the side of the workbench top close to the rotating ring, the forkbone feeding mechanism includes a mounting bracket connected to the workbench top close to the rotating ring side, the upper part of the mounting bracket is connected to a U-shaped box located above the rotating ring, the U-shaped box is provided with a U-shaped storage trough for accommodating the forkbone, the bottom of the U-shaped box is connected to an L-shaped receiving plate for receiving the forkbone on one side close to the mounting bracket, the lower part of the U-shaped box is symmetrically provided with two Z-shaped baffles with the L-shaped receiving plate as the symmetry center, a guide rod is connected inside the U-shaped box, two sliding sleeves are slidably connected to the guide rod, the two sliding sleeves are respectively fixedly connected to the tops of the two Z-shaped baffles, a spring is connected between the sliding sleeve and the guide rod, an electric push rod is installed in the U-shaped box, a triangular push block is connected to the electric push rod, the triangular push block is located between the two Z-shaped baffles and contacts with the Z-shaped baffle.

[0015] Preferably, a vertical tube feeding mechanism is provided on the side of the top of the workbench close to the mounting frame, and the vertical tube feeding mechanism includes a fixed frame connected to the side of the top of the workbench close to the mounting frame, and the upper part of the fixed frame is connected to a storage box with open top and bottom, and the storage box is adapted to the vertical tube, and an L-shaped baffle located on the lower side of the storage box is slidably connected to the fixed frame through a sliding rod, and a spring 2 is connected between the L-shaped baffle and the fixed frame, and the thickness of the arc-shaped clamping block gradually decreases from the side away from the frame to the side close to the frame.

[0016] Preferably, each L-shaped support plate is rotatably connected to a conical block on one side away from the frame, and the conical block is used to be inserted into the vertical pipe to limit the vertical pipe.

[0017] Preferably, the power assembly includes a motor 1 installed in the workbench, the output shaft of the motor 1 is connected to a spur gear, the bottom of the rotating ring is connected to a gear ring, and the gear ring is meshed with the spur gear.

[0018] Compared with the prior art, the present invention has the following beneficial effects: 1. The automatic docking of the stem tube and the wishbone can be achieved by cooperating with the clamping frame and the electric clamp arranged at intervals on the rotating ring. The rotation of the rotating ring can turn the welded bicycle front fork away from the welding area of ​​the laser welding robot, and transport the stem tube and wishbone to be welded to the welding area of ​​the laser welding robot, so that the welding operation can be carried out continuously and efficiently.

[0019] 2. The electric clamp can automatically fix and release the fork bone. The cooperation of the electric telescopic rod, clamping frame, column gear and rack can automatically fix and release the vertical pipe, which reduces manual intervention, improves the degree of automation and intelligence, and improves the continuity and efficiency of welding.

[0020] 3. The clamping frame and the electric clamp are distributed on both sides of the outside of the welding area of ​​the laser welding robot, so that the clamping frame and the electric clamp will not hinder the welding path of the laser welding robot, avoiding obstruction of the welding path of the laser welding robot. There is no need for the laser welding robot to frequently adjust the welding path, which effectively reduces the welding time and complexity and improves the welding efficiency. There is no need to write complex path planning programs, which effectively reduces the programming time and difficulty, reduces the risk of programming errors, and improves the welding quality.

[0021] 4. Through the cooperation of the arc plate and the wedge block, the fork bone can be pushed to move up with the vertical tube and disengage from the arc clamp block to achieve automatic unloading. There is no need to manually pick up the welded bicycle front fork, which further reduces manual intervention, further improves the degree of automation and intelligence, and further improves the continuity and efficiency of welding.

[0022] 5. The forkbone feeding mechanism can realize automatic feeding of the forkbone. The cooperation of the vertical tube feeding mechanism, the electric telescopic rod and the clamping frame can realize automatic feeding of the vertical tube and automatic docking of the vertical tube and the forkbone. There is no need for manual feeding and manual docking of the vertical tube and the forkbone, which further reduces manual intervention, further improves the degree of automation and intelligence, and further improves the continuity and efficiency of welding. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention.

[0024] Figure 2 It is a partial three-dimensional structural schematic diagram of the present invention.

[0025] Figure 3 It is a schematic diagram of the three-dimensional structure of the power assembly of the present invention.

[0026] Figure 4 It is a three-dimensional structural schematic diagram of the clamping frame, electric clamp and driving assembly of the present invention.

[0027] Figure 5 It is a schematic diagram of the three-dimensional structure of the clamping frame of the present invention.

[0028] Figure 6 It is a schematic diagram of the installation of the unloading mechanism of the present invention.

[0029] Figure 7 It is a three-dimensional structural schematic diagram of the unloading mechanism of the present invention.

[0030] Figure 8 It is a schematic diagram of the installation of the unloading mechanism, the fork bone feeding mechanism and the vertical tube feeding mechanism of the present invention.

[0031] Fig. 9 The three-dimensional structure of the wishbone feeding mechanism of the present invention is shown in FIG. Figure 1 .

[0032] Fig.10 The three-dimensional structure of the wishbone feeding mechanism of the present invention is shown in FIG. Figure 2 .

[0033] Fig.11 It is a partial three-dimensional structural schematic diagram of the wishbone feeding mechanism of the present invention.

[0034] Fig.12 It is a schematic diagram of the three-dimensional structure of the vertical pipe feeding mechanism of the present invention.

[0035] In the figure: 1-workbench, 2-frame, 3-laser welding robot, 4-rotating ring, 5-electric telescopic rod, 6-clamping frame, 61-vertical plate, 62-rotating shaft, 63-connecting plate, 64-L-shaped support plate, 65-arc groove, 66-arc clamping block, 67-supporting block, 7-connecting plate, 8-rotating shaft, 9-electric clamp, 91-clamping plate, 92-arc accommodating groove, 93-cylinder, 94-L-shaped clamping block, 101-motor 1, 102-spur gear, 103-gear ring, 111-electric slide rail, 112-motor 2, 113-block, 114-block Plate, 12-column gear, 13-fixed plate, 14-rack, 151-support plate, 152-arc plate, 153-wedge block, 160-triangular push block, 161-mounting frame, 162-U-shaped box, 163-U-shaped storage trough, 164-L-shaped receiving plate, 165-Z-shaped baffle, 166-guide rod, 167-sliding sleeve, 168-spring one, 169-electric push rod, 171-fixed frame, 172-storage box, 173-sliding rod, 174-L-shaped baffle, 175-spring two, 18-conical block, 19-vertical tube, 20-fork bone. DETAILED DESCRIPTION

[0036] The present application is further described in detail below in conjunction with the accompanying drawings. It is necessary to point out here that the following specific implementation methods are only used to further illustrate the present application and cannot be understood as limiting the scope of protection of the present application. Technical personnel in this field can make some non-essential improvements and adjustments to the present application based on the above application content.

[0037] See also Figure 1-Figure 7A bicycle frame intelligent welding equipment for manufacturing bicycles comprises a workbench 1, a frame 2 is connected to the middle of the top of the workbench 1, a laser welding robot 3 is installed on the top of the frame 2, a rotating ring 4 is rotatably provided on the top of the workbench 1, the frame 2 is located on the inner side of the rotating ring 4 and rotates with the rotating ring 4, five electric telescopic rods 5 are evenly spaced along the circumferential direction on the top of the rotating ring 4, each electric telescopic rod 5 is connected to a clamping frame 6 for clamping a vertical pipe 19, the clamping frame 6 comprises a vertical plate 61 connected to the electric telescopic rod 5, a rotating shaft 62 is rotatably connected to the upper part of the vertical plate 61, a connecting plate 63 is connected to the rotating shaft 62, a suitable friction force is provided between the connecting plate 63 and the vertical plate 61 to prevent the connecting plate 63 from rotating by itself, and the connecting plate 6 The top of the rotating ring 4 is connected with an L-shaped support plate 64 for supporting the vertical tube 19, and an arc groove 65 for accommodating the vertical tube 19 is formed on the L-shaped support plate 64, and the arc groove 65 is adapted to the vertical tube 19. The side of the L-shaped support plate 64 away from the frame 2 is connected with an arc clamping block 66 for clamping the vertical tube 19, and the side of the vertical plate 61 facing the frame 2 is connected with a support block 67 for supporting the connecting plate 63. Five connecting plates 7 are evenly spaced along the circumferential direction on the top of the rotating ring 4. The five connecting plates 7 correspond to the five electric telescopic rods 5 one by one. The connecting plates 7 are located between the electric telescopic rods 5 and the frame 2. Each connecting plate 7 is rotatably connected with a rotating shaft 8. The end of the rotating shaft 8 facing away from the frame 2 is provided with an electric clamp 9 for clamping the wishbone 20. The electric clamp 9 includes a connecting plate 7 connected to the back of the rotating shaft 8. For the clamping plate 91 at one end of the frame 2, the top of the clamping plate 91 is symmetrically provided with two arc-shaped receiving grooves 92 for accommodating the fork bone 20 with the rotating shaft 8 as the symmetry center, and the arc-shaped receiving grooves 92 are adapted to the fork bone 20. The bottom of the clamping plate 91 is symmetrically provided with two cylinders 93 with the rotating shaft 8 as the symmetry center. The cylinder 93 is connected with an L-shaped clamping block 94 for clamping the fork bone 20. The upper part of the L-shaped clamping block 94 is arc-shaped, which can better fit the fork bone 20. A power assembly for driving the rotating ring 4 to rotate is provided in the workbench 1. The power assembly includes a motor 101 installed in the workbench 1. A spur gear 102 is connected to the output shaft of the motor 101. A gear ring 103 is connected to the bottom of the rotating ring 4. The gear ring 103 meshes with the spur gear 102. A driving assembly for driving the rotating shaft 8 to rotate is provided, and the driving assembly includes an electric slide rail 111 installed in the frame 2, and a motor 112 is installed on the slider of the electric slide rail 111, and a cross-shaped clamping block 113 is connected to the output shaft of the motor 112. A cross-shaped chuck 114 is connected to the end of each rotating shaft 8 facing the frame 2, and the cross-shaped chuck 114 is engaged with the cross-shaped clamping block 113. Two column gears 12 are symmetrically connected to the rotating shaft 62 with the connecting plate 63 as the symmetry center. Two left and right fixed plates 13 are connected to the top of the workbench 1, and the fixed plates 13 are located on the rear side of the rotating ring 4. The tops of the two fixed plates 13 are connected to racks 14, and the column gears 12 can engage with the racks 14 when they move toward the fixed plates 13.

[0038] First, the vertical tube 19 is placed in the arc groove 65 of the L-shaped support plate 64, and then the wishbone 20 is placed in the arc accommodating groove 92 of the clamping plate 91, and the fork crown on the wishbone 20 is facing the vertical tube 19, and then the cylinder 93 is controlled to drive the L-shaped clamping block 94 to move in the direction close to the wishbone 20, so that the L-shaped clamping block 94 pushes the wishbone 20 to move in the direction close to the vertical tube 19. Since the vertical tube 19 is supported by the L-shaped support plate 64, the vertical tube 19 cannot move, and then the wishbone 20 moves in the direction close to the vertical tube 19 to cover the fork crown on the vertical tube 19, so as to realize the automatic docking of the vertical tube 19 and the wishbone 20. The vertical tube 19 can be clamped and fixed by the cooperation of the L-shaped support plate 64 and the arc clamping block 66, and the wishbone 20 can be clamped and fixed by the cooperation of the clamping plate 91, the cylinder 93 and the L-shaped clamping block 94, so as to realize the automatic fixation of the vertical tube 19 and the wishbone 20. The control motor 101 drives the spur gear 102 to rotate, and the rotation of the spur gear 102 drives the ring gear 103 to rotate with the rotating ring 4, thereby rotating the clamping frame 6 and the electric clamp 9 to rotate, so as to turn the welded bicycle front fork away from the welding area of ​​the laser welding robot 3, and transport the vertical tube 19 and the wishbone 20 that need to be welded to the welding area of ​​the laser welding robot 3, so that the welding operation can be carried out continuously and efficiently. When the chuck 114 follows the rotating ring 4 to rotate and align with the block 113, the electric slide rail 111 is controlled to drive the motor 2 112 to move the block 113 to the left, so that the block 113 is stuck in the chuck 114, and the vertical tube 19 and the fork crown can be welded by the laser welding robot 3. When the vertical tube 19 and the upward area of ​​the fork crown are welded, the motor 2 112 is controlled to drive the block 113 to rotate. The rotation of the block 113 drives the rotating shaft 8 to rotate through the chuck 114, so that the entire electric clamp 9 rotates. The rotation of the electric clamp 9 drives the fork bone 20 to rotate. Since the vertical tube 19 and the fork crown have been partially welded at this time, the rotation of the fork bone 20 drives the vertical tube 19 to rotate together, thereby realizing all-round welding of the vertical tube 19 and the fork crown. Since the clamping frame 6 and the electric clamp 9 are distributed on both sides of the outside of the welding area of ​​the laser welding robot 3, the clamping frame 6 and the electric clamp 9 will not hinder the welding path of the laser welding robot 3, thereby avoiding obstruction of the welding path of the laser welding robot 3. There is no need for the laser welding robot 3 to frequently adjust the welding path, which effectively reduces the welding time and complexity and improves the welding efficiency. There is no need to write complex path planning programs, which effectively reduces the programming time and difficulty, reduces the risk of programming errors, and improves the welding quality.

[0039] After the bicycle front fork is welded, the electric slide rail 111 is first controlled to drive the motor 2 112 to move the clamping block 113 to the right and disengage the chuck 114 to avoid hindering the subsequent rotating ring 4 from driving the upper parts to rotate, and then the cylinder 93 is controlled to drive the L-shaped clamping block 94 to move away from the fork bone 20 to loosen the fork bone 20. When the welded bicycle front fork turns away from the welding area of ​​the laser welding robot 3, the column gear 12 follows the clamping frame 6 to rotate and align with the rack 14. At this time, the electric telescopic rod 5 is controlled to push the clamping frame 6 to move backward with the bicycle front fork and the column gear 12, and the column gear 12 is meshed with the rack 14. Under the meshing action of the rack 14 and the column gear 12, the column gear 12 drives the rotating shaft 62 to rotate, so that the horizontal L-shaped support plate 64 rotates to the vertical state, and the arc-shaped clamping block 66 rotates to the vertical state, thereby pushing the bicycle front fork from the horizontal state to the vertical state, and then the bicycle front fork can be taken out of the clamping frame 6 upward, so that the device can automatically fix and automatically release the vertical tube 19 and the fork bone 20, reducing manual intervention, improving the degree of automation and intelligence, and improving the continuity and efficiency of welding. After the bicycle front fork is taken out from the clamping frame 6 upward, the electric telescopic rod 5 is controlled to pull the clamping frame 6 and the column gear 12 to move forward and reset. Under the meshing action of the rack 14 and the column gear 12, the column gear 12 drives the rotating shaft 62 to reverse and reset, so that the vertical L-shaped support plate 64 is rotated back to the horizontal state.

[0040] See also Figure 6-Figure 7 A discharge mechanism is provided at the rear side of the top of the workbench 1, and the discharge mechanism includes two left and right support plates 151 connected to the rear side of the top of the workbench 1. The two support plates 151 are respectively located at the rear sides of the two fixed plates 13. The upper parts of the two support plates 151 close to each other are connected with arc plates 152, and the tops of the arc plates 152 are connected with wedge blocks 153, and the front side of the wedge blocks 153 is an inclined surface.

[0041] When the welded bicycle front fork moves backward and rotates to a vertical state, the vertical tube 19 enters between the two arc plates 152, and the fork bone 20 rotates to the upper side of the arc plate 152. Under the pushing action of the arc plate 152, the fork bone 20 drives the vertical tube 19 to move upward, and then the fork bone 20 continues to push the vertical tube 19 upward through the inclined surface on the front side of the wedge block 153, so that the vertical tube 19 moves upward and disengages from the arc clamp block 66, realizing automatic unloading, and no manual labor is required to take the welded bicycle front fork, further reducing manual intervention, further improving the degree of automation and intelligence, and further improving the continuity and efficiency of welding. When the next welded bicycle front fork moves backward and rotates to a vertical state, the bicycle front fork on the arc plate 152 is pushed to move backward, and a collection container is placed on the rear side of the workbench 1 to collect the bicycle front fork that has slipped off the arc plate 152.

[0042] See also Figure 8-Figure 11 A fork bone feeding mechanism is provided on the right rear side of the top of the workbench 1. The fork bone feeding mechanism includes a mounting frame 161 connected to the right rear side of the workbench 1. The mounting frame 161 is located on the right rear side of the rotating ring 4 and on the right side of the support plate 151. The mounting frame 161 is in the shape of a 7. A U-shaped box 162 located above the rotating ring 4 is connected to the upper left portion of the mounting frame 161. A U-shaped storage trough 163 for accommodating the fork bone 20 is provided on the U-shaped box 162. An L-shaped receiving plate 164 for receiving the fork bone 20 is connected to the right side of the bottom of the U-shaped box 162. Two Z-shaped baffles 165 are symmetrically slidably provided front and back on the lower part of the U-shaped box 162 with the L-shaped receiving plate 164 as the symmetry center. The inner bottom of the Z-shaped baffle 165 is connected to the inner bottom of the Z-shaped baffle 165. The bottom of the U-shaped box 162 fits together, and the sides of the tops of the two Z-shaped baffles 165 that are away from each other are both inclined surfaces. A guide rod 166 is connected inside the U-shaped box 162, and two front and rear sliding sleeves 167 are slidably connected to the guide rod 166. The two sliding sleeves 167 are respectively fixedly connected to the tops of the two Z-shaped baffles 165. Two front and rear springs 168 are sleeved on the guide rod 166, and the two ends of the spring 168 are respectively connected to the guide rod 166 and the sliding sleeve 167. An electric push rod 169 located on the right side of the sliding sleeve 167 is installed in the U-shaped box 162, and a triangular push block 160 is connected to the electric push rod 169. The triangular push block 160 is located between the two Z-shaped baffles 165 and contacts with the Z-shaped baffles 165.

[0043] The fork bone 20 is placed into the U-shaped storage groove 163 of the U-shaped box 162. At this time, the fork bone 20 is blocked by the Z-shaped baffle 165 and cannot fall from the U-shaped storage groove 163. When the electric clamp 9 follows the rotating ring 4 to rotate to the bottom of the U-shaped box 162, the electric push rod 169 is controlled to drive the triangular push block 160 to move downward. The triangular push block 160 moves downward and pushes the two Z-shaped baffles 165 away from each other. The two sliding sleeves 167 then move away from each other to stretch the spring 168. After the two Z-shaped baffles 165 move away from each other, their inner bottoms move out of the U-shaped storage trough 163, thereby loosening the lowest fork bone 20, and the lowest fork bone 20 then falls into the arc-shaped receiving groove 92 on the clamping plate 91. After the two Z-shaped baffles 165 move away from each other, their tops move into the U-shaped storage trough 163, thereby blocking the previous fork bone 20, ensuring that the fork bones 20 are released one by one. When the two Z-shaped baffles 165 move away from each other, the inclined surfaces at their tops can push the previous fork bone 20 upward, preventing the Z-shaped baffles 165 from being stuck by the fork bone 20, ensuring smooth release of the fork bone 20. When the lowermost fork bone 20 falls into the arc-shaped receiving groove 92 on the clamping plate 91, the control cylinder 93 drives the L-shaped clamping block 94 to move towards the direction close to the fork bone 20, clamping and fixing the fork bone 20. Since the fork bone 20 is supported by the L-shaped receiving plate 164, the fork bone 20 will not be pushed and displaced by the L-shaped clamping block 94, thereby ensuring that the L-shaped clamping block 94 can stably clamp the fork bone 20. When the electric clamp 9 drives the fork bone 20 to follow the rotating ring 4 to rotate away from the U-shaped box 162, the electric push rod 169 is controlled to drive the triangular push block 160 to move up. Under the reset action of the spring 168, the two sliding sleeves 167 are pulled to bring the two Z-shaped baffles 165 closer to each other. After the two Z-shaped baffles 165 are closer to each other, their tops move out of the U-shaped storage groove 163, thereby loosening the fork bone 20, and the fork bone 20 falls accordingly. After the two Z-shaped baffles 165 are closer to each other, their inner bottoms move into the U-shaped storage groove 163, thereby blocking the fork bone 20. In this way, the device can realize automatic loading of the fork bone 20.

[0044] See also Figure 8 and Fig.12 A vertical tube feeding mechanism is provided on the right front side of the top of the workbench 1, and the vertical tube feeding mechanism includes a fixing frame 171 connected to the right front side of the top of the workbench 1, the fixing frame 171 is located in front of the mounting frame 161 and on the right side of the rotating ring 4, and the upper part of the fixing frame 171 is connected with a storage box 172 with open top and bottom, and the storage box 172 is adapted to the vertical tube 19, and a sliding rod 173 is slidably connected in the fixing frame 171, and an L-shaped baffle 174 located on the lower side of the storage box 172 is connected to the left end of the sliding rod 173, and a spring 175 is sleeved on the sliding rod 173, and the two ends of the spring 175 are respectively connected to the L-shaped baffle 174 and the fixing frame 171, and the thickness of the arc clamping block 66 gradually decreases from the side away from the frame 2 to the side close to the frame 2.

[0045] The vertical pipe 19 is placed into the storage box 172. At this time, the vertical pipe 19 is blocked by the L-shaped baffle 174 and cannot fall from the storage box 172. When the clamping frame 6 follows the rotating ring 4 to rotate to the bottom of the storage box 172, the electric telescopic rod 5 is controlled to drive the clamping frame 6 to move to the right. The clamping frame 6 moves to the right and pushes the L-shaped baffle 174 to move to the right through the L-shaped support plate 64 thereon. The spring 2 175 is compressed accordingly. After the L-shaped baffle 174 moves to the right, the vertical pipe 19 in the storage box 172 is released, and the vertical pipe 19 at the lower end of the storage box 172 falls into the arc groove 65 on the L-shaped support plate 64, thereby realizing automatic loading of the vertical pipe 19. Since the connecting plate 63 is supported by the supporting block 67, the L-shaped supporting plate 64 can be locked to prevent the L-shaped supporting plate 64 from being pushed by the L-shaped baffle plate 174 to rotate, thereby ensuring that the L-shaped baffle plate 174 is pushed to the right, ensuring that the loading of the vertical tube 19 is completed, and then the electric telescopic rod 5 is controlled to drive the clamping frame 6 to move left, and the clamping frame 6 moves to the right to push the vertical tube 19 on it to move to the left and insert it into the fork crown on the fork bone 20, thereby realizing automatic docking of the vertical tube 19 and the fork bone 20. Since the thickness of the arc-shaped clamp block 66 gradually decreases from the side away from the frame 2 to the side close to the frame 2, the arc-shaped clamp block 66 can be smoothly inserted between the two vertical pipes 19 adjacent to each other when it moves to the left, and pushes the upper vertical pipe 19 to move upward, so as to prevent the arc-shaped clamp block 66 from being stuck by the vertical pipe 19, and ensure that the vertical pipe 19 is smoothly loaded. When the clamping frame 6 moves to the left, under the reset action of the second spring 175, the L-shaped baffle 174 moves to the left and resets to block the vertical pipe 19 in the storage box 172, and ensures that the vertical pipes 19 are loaded one by one. In this way, the device can realize automatic loading of the fork bone 20, automatic loading of the vertical pipe 19, and automatic docking of the vertical pipe 19 and the fork bone 20, without manual loading, manual docking of the vertical pipe 19 and the fork bone 20, further reducing manual intervention, further improving the degree of automation and intelligence, and further improving the continuity and efficiency of welding.

[0046] See also Figure 2 and Figure 5 Each L-shaped support plate 64 is rotatably connected to a conical block 18 on one side away from the frame 2. The conical block 18 is used to be inserted into the vertical tube 19 to limit the vertical tube 19. The circumference of the conical block 18 is rhombus-shaped. The rhombus-shaped conical block 18 can better assist the vertical tube 19 to rotate along with the fork bone 20.

[0047] The conical block 18 can be inserted into the vertical tube 19 when following the clamping frame 6 to move to the left, so as to limit the vertical tube 19 and prevent the vertical tube 19 from deviating forward and backward when being subsequently inserted to the left into the fork crown on the fork bone 20, thereby ensuring that the vertical tube 19 is accurately inserted into the fork crown on the fork bone 20.

[0048] The above-mentioned embodiments only express the preferred implementation modes of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the present invention. It should be pointed out that, for those skilled in the art, several modifications, improvements and substitutions can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention.

Claims

1. An intelligent welding device for bicycle frames for manufacturing, comprising a workbench (1), a frame (2) connected to the middle of the top of the workbench (1), a laser welding robot (3) installed on the top of the frame (2), characterized in that: The top of the workbench (1) is provided with a rotating ring (4) located outside the frame (2), and the top of the rotating ring (4) is evenly spaced along the circumferential direction. Electric telescopic rods (5) are installed, each of which is connected to a clamping frame (6) for clamping a vertical tube (19). The clamping frame (6) includes a vertical plate (61) connected to the electric telescopic rod (5), and the upper part of the vertical plate (61) is rotatably connected to a connecting plate (63) through a rotating shaft (62). The top of the connecting plate (63) is connected to an L-shaped support plate (64), and the L-shaped support plate (64) is provided with an arc groove (65) for accommodating the vertical tube (19). The side of the L-shaped support plate (64) away from the frame (2) is connected to an arc clamping block (66), and the side of the vertical plate (61) facing the frame (2) is connected to A support block (67) is provided for supporting the connecting plate (63). Connecting plates (7) are evenly spaced along the circumferential direction on the top of the rotating ring (4). An electric clamp (9) for clamping a fork bone (20) is rotatably connected to each connecting plate (7) via a rotating shaft (8). The electric clamp (9) comprises a clamping plate (91) connected to the end of the rotating shaft (8) facing away from the frame (2). Two arc-shaped receiving grooves (92) for accommodating the fork bone (20) are symmetrically opened on the top of the clamping plate (91). Two cylinders (93) are symmetrically installed on the bottom of the clamping plate (91). An L-shaped clamping block (94) is connected to the cylinder (93). A power assembly for driving the rotating ring (4) to rotate is provided in the workbench (1). A driving assembly for driving the rotating shaft (8) to rotate is provided in the frame (2).

2. The intelligent welding equipment for bicycle frame manufacturing according to claim 1 is characterized in that: The driving assembly comprises an electric slide rail (111) installed in a frame (2); a second motor (112) is installed on a slider of the electric slide rail (111); a clamping block (113) is connected to an output shaft of the second motor (112); and a chuck (114) that engages with the clamping block (113) is connected to one end of each rotating shaft (8) facing the frame (2).

3. The intelligent welding equipment for bicycle frame manufacturing according to claim 2 is characterized in that: Two column gears (12) are symmetrically connected to the rotating shaft (62) with the connecting plate (63) as the symmetry center. Two fixed plates (13) are connected to the top of the workbench (1) near the rotating ring (4). The tops of the two fixed plates (13) are both connected to racks (14). The column gears (12) can mesh with the racks (14) when they move in a direction close to the fixed plates (13).

4. The intelligent welding equipment for bicycle frame manufacturing according to claim 3 is characterized in that: A discharge mechanism is provided on one side of the top of the workbench (1) close to the fixed plate (13), and the discharge mechanism comprises two support plates (151) connected to one side of the top of the workbench (1) close to the fixed plate (13), and the upper parts of the two support plates (151) close to each other are both connected to arc plates (152), and the tops of the arc plates (152) are connected to wedge blocks (153).

5. The intelligent welding equipment for bicycle frame manufacturing according to claim 4 is characterized in that: A fork bone feeding mechanism is provided on one side of the top of the workbench (1) near the rotating ring (4), the fork bone feeding mechanism comprising a mounting frame (161) connected to one side of the top of the workbench (1) near the rotating ring (4), a U-shaped box (162) located above the rotating ring (4) is connected to the upper part of the mounting frame (161), a U-shaped material storage trough (163) for accommodating the fork bone (20) is opened on the U-shaped box (162), an L-shaped material receiving plate (164) for receiving the fork bone (20) is connected to the lower part of the U-shaped box (162) with the L-shaped material receiving plate (164) as the symmetrical center. Two Z-shaped baffles (165) are provided, a guide rod (166) is connected inside the U-shaped box (162), two sliding sleeves (167) are slidably connected to the guide rod (166), the two sliding sleeves (167) are respectively fixedly connected to the tops of the two Z-shaped baffles (165), a spring (168) is connected between the sliding sleeve (167) and the guide rod (166), an electric push rod (169) is installed in the U-shaped box (162), a triangular push block (160) is connected to the electric push rod (169), and the triangular push block (160) is located between the two Z-shaped baffles (165) and contacts the Z-shaped baffles (165).

6. The intelligent welding equipment for bicycle frame manufacturing according to claim 5 is characterized in that: A vertical tube loading mechanism is provided on one side of the top of the workbench (1) near the mounting frame (161), and the vertical tube loading mechanism comprises a fixing frame (171) connected to one side of the top of the workbench (1) near the mounting frame (161), a material storage box (172) with an open top and bottom is connected to the upper part of the fixing frame (171), the material storage box (172) is adapted to the vertical tube (19), an L-shaped baffle (174) located at the lower side of the material storage box (172) is slidably connected to the fixing frame (171) via a sliding rod (173), a spring 2 (175) is connected between the L-shaped baffle (174) and the fixing frame (171), and the thickness of the arc-shaped clamping block (66) gradually decreases from the side away from the frame (2) to the side close to the frame (2).

7. The intelligent welding equipment for bicycle frame manufacturing according to claim 6 is characterized in that: A conical block (18) is rotatably connected to one side of each L-shaped support plate (64) away from the frame (2), and the conical block (18) is used to be inserted into the vertical pipe (19) to limit the vertical pipe (19).

8. The intelligent welding equipment for bicycle frame manufacturing according to claim 1 is characterized in that: The power assembly comprises a motor 1 (101) installed in the workbench (1), the output shaft of the motor 1 (101) is connected to a spur gear (102), the bottom of the rotating ring (4) is connected to a gear ring (103), and the gear ring (103) is meshed with the spur gear (102).

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