A bicycle frame automatic assembly welding machine

Abstract

A bicycle frame automatic assembly welding machine, comprising a rack, an upper tube feeding device, a lower tube feeding device, a clamping device, a head tube mounting device, a seat tube mounting device, a mechanical arm, a finished product transfer device and a control end; the upper tube feeding device and the lower tube feeding device are both installed on the front part of the rack and are respectively used for feeding the upper tube and the lower tube; the clamping device is arranged on the middle part of the rack and is used for clamping the upper tube and the lower tube; the head tube mounting device is arranged on the rear upper end of the rack, and the seat tube mounting device is arranged on the rear bottom end of the rack; the mechanical arm is fixedly installed on the rear middle position of the rack, the arm end of the mechanical arm is provided with a welding gun and is used for welding the bicycle frame; and the control end is used for controlling the operation of the whole machine; the bicycle frame automatic assembly welding can be realized by replacing manual operation; the operator only needs to arrange the upper tube, the lower tube, the head tube and the seat tube in the corresponding storage box or support, so that the problems of low efficiency and quality in manual assembly welding are avoided.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of bicycle assembly, in particular to a bicycle frame automatic assembly welding machine. BACKGROUND

[0002] Bicycle, also known as pedal car or bicycle, is a kind of vehicle that uses human power as mechanical transmission. In the early years, bicycle was the main traffic and transportation tool for people. With the improvement of people's living standards, the application field of bicycle has been extended from traditional transportation tool to leisure sports, especially fitness field. Therefore, the demand for bicycles is still increasing in recent years. At present, in the production process of bicycle assembly in most factories, the components of the frame are installed in the fixture by manual or manual with auxiliary tools, and then the components of the frame are assembled and fixed by the fixture, and then welded. The manual installation method not only wastes manpower and is low in efficiency, but also cannot guarantee the accuracy of component installation, thereby affecting the quality of the frame. SUMMARY

[0003] In view of the above problems, the present application provides a bicycle frame automatic assembly welding machine, and the technical scheme used is:

[0004] A bicycle frame automatic assembly welding machine, comprising a rack, an upper pipe feeding device, a lower pipe feeding device, a clamping device, a head tube mounting device, a seat tube mounting device, a mechanical arm and a control end; the upper pipe feeding device and the lower pipe feeding device are both installed on the front part of the rack and are respectively used for feeding the upper pipe and the lower pipe;

[0005] The clamping device is arranged in the middle part of the rack and comprises a servo lead screw one, an electric push rod one, an electric clamping jaw one, a rotating assembly, a fixing assembly and a mounting rod; the mounting rod is vertically rotatably installed in the middle part of the rack and is driven to rotate by the rotating assembly; the servo lead screw one is provided with two, corresponding to the upper pipe feeding device and the lower pipe feeding device, and is both horizontally fixedly installed on the mounting rod; one electric push rod one is slidably installed on each servo lead screw one, the electric push rod one is perpendicular to the corresponding servo lead screw one, and the two electric push rod ones are in the same direction; one electric clamping jaw one is fixedly installed at the extension end of each electric push rod one, and the two electric clamping jaws are used for clamping the upper pipe and the lower pipe respectively; the fixing assembly is provided with two groups, and the two groups of fixing assemblies are both installed on the mounting rod and are respectively used for fixing the upper pipe and the lower pipe;

[0006] The head tube mounting device is arranged on the upper end of the rear part of the rack, and the seat tube mounting device is arranged on the bottom end of the rear part of the rack; the mechanical arm is fixedly installed at the middle position of the rear part of the rack, and a welding gun is installed at the arm end of the mechanical arm and is used for welding the bicycle frame; the control end is used for controlling the operation of the whole bicycle frame automatic assembly welding machine.

[0007] Each of the fixing assemblies comprises a fixing frame, a spring and a sliding clamp plate; the fixing frame is fixedly installed on the mounting rod, a pair of sliding clamp plates are symmetrically and vertically arranged in the middle of each fixing frame, each sliding clamp plate is fixedly connected with a connecting slide rod, the connecting slide rod is horizontally arranged and slidably installed on the fixing frame, and the connecting slide rod is elastically connected with the inner side wall of the fixing frame through the spring; each pair of sliding clamp plates jointly clamp the upper pipe or the lower pipe.

[0008] The upper pipe feeding device comprises an upper pipe storage box, an upper pipe push plate, a spring and a sliding frame; the upper pipe storage box is fixedly installed on the rack, an upper pipe outlet is arranged on one end of the upper pipe storage box close to the corresponding electric clamping jaw, and a clearance slide for moving the corresponding electric clamping jaw is arranged on the side wall of the upper pipe storage box; a sliding frame is slidably installed on the other end of the upper pipe storage box, and the sliding frame is elastically connected with the upper pipe storage box through the spring; the upper pipe push plate is fixedly connected with the sliding frame and slidably installed in the upper pipe storage box.

[0009] The lower pipe feeding device comprises a lower pipe storage box, a lower pipe push plate, a spring, a pushing assembly and a sliding frame; the lower pipe storage box is fixedly installed on the rack, a limiting slide is arranged on one end of the lower pipe storage box close to the corresponding electric clamping jaw, and a lower pipe outlet is arranged at the end of the limiting slide; the pushing assembly is installed on the lower pipe storage box and used for pushing the lower pipe to move in the limiting slide; a sliding frame is slidably installed on the other end of the lower pipe storage box, and the sliding frame is elastically connected with the lower pipe storage box through the spring; the lower pipe push plate is fixedly connected with the sliding frame and slidably installed in the lower pipe storage box.

[0010] The pushing assembly comprises a pushing motor, a rotating disc, a transmission slide and a push rod; the pushing motor is fixedly installed on the lower pipe storage box, and the output end of the pushing motor is coaxially and fixedly connected with the rotating disc; the transmission slide is eccentrically and fixedly arranged on the rotating disc, and the transmission slide is slidably installed in the transmission slide; at least one push rod is arranged, all the push rods are horizontally arranged and opposite to the limiting slide; each push rod is slidably installed on the lower pipe storage box, and the tail end of each push rod is fixedly connected with the vertically arranged transmission slide.

[0011] The device further comprises an exchanging device, the exchanging device comprises an exchanging motor, a transmission gear, a transmission shaft and a mounting disc; the transmission shaft is vertically arranged, the bottom end of the transmission shaft is rotatably installed on the front part of the rack, the top end of the transmission shaft is coaxially and fixedly connected with the mounting disc, and one transmission gear is coaxially and fixedly arranged on the shaft body; the exchanging motor is fixedly installed on the rack, and the output end of the exchanging motor is coaxially and fixedly connected with one transmission gear; the two transmission gears are meshed with each other; the mounting disc is circumferentially and uniformly installed with a plurality of lower pipe feeding devices.

[0012] The head tube mounting device includes a head tube storage box, a second servo screw, a head tube push plate, a third servo screw, a second electric push rod, and a second electric gripper. The head tube storage box is horizontally fixedly installed at the rear top of the frame, and one end of the head tube storage box has a head tube outlet. The second servo screw is horizontally installed on the head tube storage box, and the head tube push plate is slidably installed on the second servo screw and slides inside the head tube storage box. The third servo screw is vertically installed on the frame and is located in the same vertical plane as the second servo screw. The second electric push rod points towards the head tube storage box and is slidably installed on the third servo screw, and an electric gripper is fixedly installed on its telescopic end.

[0013] The seat tube mounting device includes a sloping bracket, a seat tube transfer plate, a transfer motor, a servo screw four, an electric push rod three, and an electric gripper three. The sloping bracket is fixedly installed on the rear bottom of the frame, and its upper end face is sloping for placing the seat tube. The innermost end of the sloping bracket is fixedly provided with a seat tube support plate. The transfer motor is fixedly installed on the sloping bracket, and its output end is coaxially fixedly connected to the flip shaft. The flip shaft is horizontally rotatable and installed at the bottom of the slope on the upper end face of the sloping bracket. Several seat tube transfer plates are provided, each of which is spliced ​​from an arc plate and a transition straight plate, and the upper end face is provided with a transition arc that matches the seat tube. All seat tube transfer plates are eccentrically installed on the flip shaft through the arc plate, and the transition straight plate intermittently points towards the seat tube support plate. The servo screw four is vertically fixedly installed on the rear bottom of the frame, and the electric push rod three is slidably installed on the servo screw four. The extension end of the electric gripper three is vertically fixedly installed. The electric gripper three intermittently passes through the seat tube support plate and clamps the seat tube.

[0014] It also includes a finished product transfer device, which includes a support frame, a reciprocating motion component, a shifting component, an electric gripper, and a conveyor belt; the conveyor belt is located on one side of the frame, and the support frame is fixedly installed on the conveyor belt; the reciprocating motion component and the shifting component are both installed on the support frame and are used to drive the electric gripper to move.

[0015] Furthermore, the output end of the reciprocating motion component is horizontally slidably mounted on the support frame; the shifting component includes a shifting groove, a shifting rod, a second connecting rod, a fixed rod, and a flipping rod; the fixed rod is fixedly connected to the output end of the reciprocating motion component; the shifting groove is located on the side of the support frame near the machine frame, with the left and right sides of the shifting groove being horizontal grooves, the middle part being a V-shaped groove, and the bottom end of the middle part of the V-shaped groove being a vertical groove; the shifting rod is slidably mounted in the shifting groove, one end of the second connecting rod is rotatably connected to the shifting rod, and the other end is fixedly connected to the flipping rod, with the flipping rod and the second connecting rod being perpendicular to each other; the flipping rod is rotatably mounted inside the fixed rod; the fourth electric gripper is fixedly mounted on the connecting rod, the connecting rod is fixedly mounted on the flipping rod, and the connecting rod and the flipping rod are perpendicular to each other.

[0016] Due to the technical scheme, the present application has the following advantages:

[0017] 1. The present application can realize automatic assembly welding of bicycle frame by replacing manual operation through the cooperation of the upper tube feeding device, the lower tube feeding device, the clamping device, the head tube mounting device, the seat tube mounting device, the mechanical arm and the finished product transfer device. The operator only needs to place the upper tube, the lower tube, the head tube and the seat tube in the corresponding storage box or support, thereby avoiding the problems of low efficiency and quality in manual assembly welding.

[0018] 2. Since the lower tube is an inclined tube body, the lower tube storage box is designed with an inclined channel inside to adapt to the shape of the lower tube, which increases the difficulty of placing the lower tube. The present application is provided with at least two groups of lower tube feeding devices on the exchange device. When one group of lower tube feeding devices is feeding, the operator places the lower tube in the other group of lower tube feeding devices, thereby avoiding the interruption of lower tube feeding and improving the assembly efficiency.

[0019] 3. The present application has simple structure and is convenient to maintain. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figures 1-5 It is a schematic diagram of the overall structure of the present application.

[0021] Figure 6 It is a schematic diagram of the structure of the rack of the present application.

[0022] Figures 7-8 It is a schematic diagram of the assembly structure of the upper tube feeding device of the present application.

[0023] Figure 9 It is a schematic diagram of the assembly structure of the exchange device of the present application.

[0024] Figures 10-11 It is a schematic diagram of the assembly structure of the lower tube feeding device of the present application.

[0025] Figure 12 It is a schematic diagram of the structure of the lower tube storage box in the lower tube feeding device of the present application.

[0026] Figures 13-14 It is a schematic diagram of the assembly structure of the clamping device of the present application.

[0027] Figure 15 It is a schematic diagram of the structure of the fixed component in the clamping device of the present application.

[0028] Figure 16 It is a schematic diagram of the assembly structure of the head tube mounting device of the present application.

[0029] Figures 17-18 It is a schematic diagram of part of the assembly structure of the head tube mounting device of the present application.

[0030] Figure 19 Assembly structure schematic diagram of the seat tube mounting device of the present application.

[0031] Figures 20-21 Assembly structure schematic diagram of the seat tube mounting device of the present application.

[0032] Figure 22 Structure schematic diagram of the mechanical arm of the present application.

[0033] Figure 23 Assembly structure schematic diagram of the finished product transfer device of the present application.

[0034] Figures 24-25 Assembly structure schematic diagram of the finished product transfer device of the present application.

[0035] Figure 26 Assembly structure schematic diagram of the finished product transfer device of the present application. Figure 25 Local enlarged structure schematic diagram of A in the present application.

[0036] Figure 27 Control end and electrical element connection schematic diagram of the present application.

[0037] Figure 28 Assembly structure schematic diagram of the bicycle frame of the present application.

[0038] Reference numerals:

[0039] 1 - frame;

[0040] 2 - upper tube feeding device;

[0041] 201 - upper tube storage box (2011 - upper tube outlet); 202 - upper tube push plate; 203 - spring one; 204 - sliding frame one;

[0042] 3 - lower tube feeding device;

[0043] 301 - lower tube storage box (3011 - lower tube outlet; 3012 - limiting sliding groove); 302 - lower tube push plate; 303 - spring two; 304 - pushing assembly (3041 - pushing motor; 3042 - rotating disc; 3043 - transmission sliding groove; 3044 - push rod); 305 - sliding frame two;

[0044] 4 - switching device;

[0045] 401 - switching motor; 402 - transmission gear; 403 - transmission shaft; 404 - mounting disc;

[0046] 5 - clamping device;

[0047] 501 - servo screw one; 502 - electric push rod one; 503 - electric clamp one; 504 - rotating assembly (5041 - rotating motor; 5042 - transmission gear set); 505 - fixing assembly (5051 - fixing frame; 5052 - spring three; 5053 - sliding clamp plate); 506 - mounting rod;

[0048] 6 - head tube mounting device;

[0049] 601 - head tube storage box (6011 - head tube outlet); 602 - servo screw two; 603 - head tube push plate; 604 - servo screw three; 605 - electric push rod two; 606 - electric clamp two;

[0050] 7 - seat tube mounting device;

[0051] 701 - inclined support; 702 - seat tube transfer plate; 703 - transfer motor; 704 - servo screw four; 705 - electric push rod three; 706 - electric clamp three;

[0052] 8 - mechanical arm;

[0053] 9 - finished product transfer device;

[0054] 901 - support frame; 902 - reciprocating moving assembly (9021 - reciprocating motor; 9022 - rotating rod; 9023 - connecting rod one; 9024 - horizontal moving rod); 903 - transposition assembly (9031 - transposition sliding slot; 9032 - transposition sliding rod; 9033 - connecting rod two; 9034 - fixed rod; 9035 - overturning rod); 904 - electric clamp four; 905 - conveyor belt;

[0055] 10 - control end;

[0056] 11 - bicycle frame;

[0057] 1101 - upper tube; 1102 - lower tube; 1103 - head tube; 1104 - seat tube. DETAILED DESCRIPTION

[0058] The technical solutions of the present application are further specifically described below by examples in combination with the drawings. In the following description, a lot of specific details are set forth in order to fully understand the present application, but the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the connotation of the present application, therefore the present application is not limited by the specific examples disclosed below.

[0059] In the description of this invention, it should be noted that the terms "upper", "lower", "in", "out", "front", "rear", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the product of this invention is usually placed when in use. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting this invention. Example

[0060] This embodiment is used to assemble and weld the upper tube 1101, lower tube 1102, head tube 1103, and seat tube 1104. Figure 28 The complete bicycle frame 11 is shown.

[0061] like Figures 1-5 As shown, an automatic assembly and welding machine for bicycle frames includes a frame 1, an upper tube feeding device 2, a lower tube feeding device 3, an adjustment device 4, a clamping device 5, a head tube mounting device 6, a seat tube mounting device 7, a robotic arm 8, a finished product transfer device 9, and a control terminal 10.

[0062] like Figures 7-8 As shown, the upper tube feeding device 2 includes an upper tube storage box 201, an upper tube push plate 202, a spring 203, and a sliding frame 204. The upper tube storage box 201 is fixedly installed on the frame 1 along the front-back direction. It has an upper tube outlet 2011 on its inner end near the corresponding electric gripper 503, and a clearance groove for the corresponding electric gripper 503 to move on its side wall. The other end of the upper tube storage box 201 is slidably installed with the sliding frame 204. The sliding frame 204 is elastically connected to the upper tube storage box 201 through the spring 203, which is a tension spring. The upper tube push plate 202 is fixedly connected to the sliding frame 204 and slidably installed inside the upper tube storage box 201.

[0063] Specifically, the operator pulls the sliding frame 204 outward and places the upper tubes 1101 one by one into the upper tube storage box 201. Then, the sliding frame 204 is released, the spring 203 rebounds, and the upper tube push plate 202 presses down on the outermost upper tube 1101. When the innermost upper tube 1101 is removed, the spring 203 will drive the sliding frame 204 to move inward into the upper tube storage box 201, thereby causing the upper tube push plate 202 to push the upper tube 1101 inward. Until all the upper tubes 1101 are removed, the operator continues to feed materials.

[0064] like Figures 9-12As shown, the lower tube feeding device 3 comprises a lower tube storage box 301, a lower tube push plate 302, a spring 303, a pushing assembly 304 and a sliding frame 305; the lower tube storage box 301 is fixedly installed on the rack 1, and a limiting sliding groove 3012 is arranged on one end of the lower tube storage box 301 close to the corresponding electrically-driven clamping jaw 503, and a lower tube outlet 3011 is arranged at the end of the limiting sliding groove 3012; the inside of the lower tube storage box 301 is suitable for the inclined lower tube 1102; the other end of the lower tube storage box 301 is slidingly installed with the sliding frame 305, the sliding frame 305 is elastically connected with the lower tube storage box 301 through the spring 303, and the spring 303 is a tensile spring; the lower tube push plate 302 is fixedly connected with the sliding frame 305 and slidingly installed in the lower tube storage box 301; the pushing assembly 304 comprises a pushing motor 3041, a rotating disc 3042, a transmission sliding groove 3043 and a push rod 3044; the pushing motor 3041 is fixedly installed on the lower tube storage box 301, and the output end thereof is coaxially fixedly connected with the rotating disc 3042; an eccentric transmission sliding rod is fixedly arranged on the rotating disc 3042, and the transmission sliding rod is slidingly installed in the transmission sliding groove 3043; the push rod 3044 comprises an upper push rod and a lower push rod, the upper push rod is longer than the lower push rod, and the upper push rod and the lower push rod are both horizontally arranged and opposite to the limiting sliding groove 3012; each push rod 3044 is slidingly installed on the lower tube storage box 301, and the tail end thereof is fixedly connected with the vertically arranged transmission sliding groove 3043;

[0065] The switching device 4 comprises a switching motor 401, a transmission gear 402, a transmission shaft 403 and a mounting disc 404; the transmission shaft 403 is vertically arranged, the bottom end thereof is rotatably installed at the front of the rack 1, the top end thereof is coaxially fixedly installed with the mounting disc 404, and one transmission gear 402 is coaxially fixedly installed on the shaft body; the switching motor 401 is fixedly installed on the rack 1, and the output end thereof is coaxially fixedly connected with one transmission gear 402; the two transmission gears 402 are meshed with each other; the mounting disc 404 is centrally symmetrically installed with two groups of lower tube feeding devices 3 with the center as the center;

[0066] Specifically, the operator pulls out the sliding frame 305 outward, places the lower tubes 1102 in the lower tube storage box 301 one by one, then releases the sliding frame 305, the spring 303 rebounds, and the lower tube push plate 302 presses the outermost lower tube 1102; when the innermost lower tube 1102 is taken away, the spring 303 drives the sliding frame 305 to move to the inside of the lower tube storage box 301, so that the lower tube push plate 302 pushes the lower tube 1102 to move inward;

[0067] The driving motor 3041 is started to drive the rotating disc 3042 to rotate, the transmission slide rod slides in the transmission slide groove 3043 to drive the transmission slide groove 3043 to move in the horizontal direction, and the upper push rod and the lower push rod push the innermost lower pipe 1102 to move along the limiting slide groove 3012 to the lower pipe outlet 3011; the rotating disc 302 continues to rotate to drive the transmission slide groove 3043, the upper push rod and the lower push rod to move back; the process is repeated until all the lower pipes 1102 are taken away;

[0068] When all the lower pipes 1102 of one group of the lower pipe feeding device 3 are taken away, the switching motor 401 is started to drive the transmission shaft 403 to rotate through the transmission gear 402, so as to drive the mounting disc 404 to rotate, so that another group of the lower pipe feeding device 3 rotates to the working position, and the operator feeds the lower pipe feeding device 3 which has been taken away.

[0069] As shown in Figures 13-15 The clamping device 5 is arranged in the middle of the rack 1 and includes a servo lead screw 501, an electric push rod 502, an electric clamping jaw 503, a rotating assembly 504, a fixing assembly 505 and a mounting rod 506. The rotating assembly 504 includes a rotating motor 5041 and a transmission gear set 5042. The rotating motor 5041 is fixedly arranged in the middle of the rack 1. The input gear of the transmission gear set 5042 is fixedly connected with the output end of the rotating motor 5041 in the same axis, and the output gear is rotatably arranged on the rack 1. The mounting rod 506 is vertically arranged, and the bottom end thereof is fixedly arranged on the output gear of the transmission gear set 5042 in the same axis. The servo lead screw 501 is arranged in two groups, corresponding to the upper pipe feeding device 2 and the lower pipe feeding device 3, and is fixedly arranged on the mounting rod 506 in the horizontal direction. The electric push rod 502 is slidably arranged on each servo lead screw 501. The electric push rod 502 is perpendicular to the corresponding servo lead screw 501, and the two electric push rods 502 are arranged in the same direction. The electric clamping jaw 503 is fixedly arranged on the extension end of each electric push rod 502. The two electric clamping jaws 503 are used for clamping the upper pipe 1101 and the lower pipe 1102 respectively.

[0070] The fixing assembly 505 is arranged in two groups and is used for fixing the upper pipe 1101 and the lower pipe 1102. Each fixing assembly 505 includes a fixing frame 5051, a spring 5052 and a sliding clamping plate 5053. The fixing frame 5051 is fixedly arranged on the mounting rod 506. A pair of sliding clamping plates 5053 is symmetrically and vertically arranged in the middle of each fixing frame 5051. Each sliding clamping plate 5053 is fixedly connected with a connecting slide rod. The connecting slide rod is horizontally arranged through the fixing frame 5051 in a sliding mode and is elastically connected with the inner side wall of the fixing frame 5051 through the spring 5052. The spring 5052 is a compression spring. Each pair of sliding clamping plates 5053 clamps the upper pipe 1101 or the lower pipe 1102. The fixing assembly 505 corresponding to the lower pipe feeding device 3 is arranged in an inclined mode with the lower pipe 1102.

[0071] Specifically, when the upper tube 1101 is clamped: the corresponding servo lead screw one 501 is started, driving the corresponding electric push rod one 502 to move to the inside of the upper tube storage box 201; the electric push rod one 502 is started, and the telescopic end drives the electric clamp jaw one 503 to extend out, the electric clamp jaw one 503 passes through the side wall of the upper tube storage box 201, and the electric clamp jaw one 503 is started to clamp the upper tube 1101; the servo lead screw one 501 drives the electric push rod one 502 to move inward, and the upper tube 1101 moves to the front of the corresponding fixed assembly 505; the electric push rod one 502 is retracted, and the upper tube 1101 moves between the two sliding clamping plates 5053 of the fixed assembly 505, the sliding clamping plates 5053 move outward, and the spring three 5052 is compressed, thereby fixing the upper tube 1101;

[0072] When the lower tube 1102 is clamped: the corresponding servo lead screw one 501 is started, driving the corresponding electric push rod one 502 to move to the inside of the lower tube storage box 301; the electric push rod one 502 is started, and the telescopic end drives the electric clamp jaw one 503 to extend out, the electric clamp jaw one 503 is started and clamps the upper half of the lower tube 1102; the servo lead screw one 501 drives the electric push rod one 502 to move inward, and the lower tube 1102 moves to the front of the corresponding fixed assembly 505; the electric push rod one 502 is retracted, and the lower tube 1102 moves between the two sliding clamping plates 5053 of the fixed assembly 505, the sliding clamping plates 5053 move outward, and the spring three 5052 is compressed, thereby fixing the lower tube 1102;

[0073] When the upper tube 1101 and the lower tube 1102 are both fixed, the rotating motor 5041 is started, and the mounting rod 506 is driven to rotate through the transmission gear set 5042, and the fixed upper tube 1101 and lower tube 1102 are rotated to the rear of the rack 1, waiting for the assembly and welding of the head tube 1103 and the seat tube 1104.

[0074] As shown in Figures 16-18 The head tube installation device 6 includes a head tube storage box 601, a servo lead screw two 602, a head tube push plate 603, a servo lead screw three 604, an electric push rod two 605, and an electric clamp jaw two 606; the head tube storage box 601 is horizontally fixedly installed at the center position of the top end of the rear of the rack 1, and the inner end of the head tube storage box 601 is provided with a head tube outlet 6011; the servo lead screw two 602 is horizontally installed on the head tube storage box 601, the head tube push plate 603 is slidingly installed on the servo lead screw two 602 and slides in the head tube storage box 601; the servo lead screw three 604 is vertically installed on the rack 1 above the mounting rod 506 and in the same vertical plane as the servo lead screw two 602; the electric push rod two 605 points to the head tube storage box 601 and is slidingly installed on the servo lead screw three 604, and an electric clamp jaw two 606 is fixedly installed on the telescopic end thereof;

[0075] Specifically, the electric push rod two 605 is started, the telescopic end of which is extended, and the electric clamp jaw two 606 is moved above the head pipe outlet 6011; the electric clamp jaw two 606 is opened, the servo lead screw three 604 drives the electric push rod two 605 to move downward, the electric clamp jaw two 606 is closed and clamps the head pipe 1103 in the head pipe outlet 6011; the servo lead screw three 604 drives the electric push rod two 605 to slightly rise, the telescopic end of the electric push rod two 605 is retracted, the servo lead screw three 604 drives the electric push rod two 605 to descend, and the head pipe 1103 is assembled on the upper pipe 1101 and the lower pipe 1102, waiting for welding; the servo lead screw two 602 is started, and the head pipe push plate 603 pushes the head pipe 1103 inward; after all the head pipes 1103 are taken away, the head pipe push plate 603 returns to the original position, and the operator places the head pipe 1103 into the head pipe storage box 601.

[0076] As shown in Figures 19-21 The seat pipe mounting device 7 includes a slope support 701, a seat pipe transfer plate 702, a transfer motor 703, a servo lead screw four 704, an electric push rod three 705, and an electric clamp jaw three 706. The slope support 701 is fixedly installed on the rear bottom end of the rack 1, the upper end surface thereof is in a slope shape, and is used for placing the seat pipe 1104. The innermost end of the slope support 701 is fixedly provided with a seat pipe support plate. The transfer motor 703 is fixedly installed on the slope support 701, the output end thereof is coaxially fixedly connected with a turnover shaft, and the turnover shaft is horizontally rotatably installed on the slope bottom of the slope of the upper end surface of the slope support 701. The seat pipe transfer plate 702 is provided with four, each of which is spliced by an arc plate and a transition straight plate, and the upper end surface is provided with a transition arc matched with the seat pipe 1104. All the seat pipe transfer plates 702 are eccentrically installed on the turnover shaft through the arc plate, and the transition straight plate intermittently points to the seat pipe support plate. The servo lead screw four 704 is vertically fixedly installed on the rear bottom end of the rack 1, the electric push rod three 705 is slidably installed on the servo lead screw four 704, and the telescopic end thereof is vertically fixedly installed with the electric clamp jaw three 706. The electric clamp jaw three 706 intermittently passes through the seat pipe support plate and clamps the seat pipe 1104.

[0077] Specifically, the transfer motor 703 is started, the turnover shaft is rotated to drive the seat pipe transfer plate 702 to rotate, when the transition straight plate is vertically upward, the frontmost seat pipe 1104 moves into the transition arc, the turnover shaft is rotated again, the seat pipe transfer plate 702 is rotated, the transition straight plate is inclined downward, and the seat pipe 1104 moves along the transition straight plate to the seat pipe support plate; the electric push rod three 705 is started, the telescopic end of which is extended, and the electric clamp jaw three 706 moves below the seat pipe 1104 and is opened; the servo lead screw four 704 is started, the electric push rod three 705 rises, the electric clamp jaw three 706 is closed and clamps the seat pipe 1104; the electric push rod three 705 continues to rise until the seat pipe 1104 is assembled on the upper pipe 1101 and the lower pipe 1102; after all the seat pipes 1104 are taken away, the operator places the seat pipe 1104 on the slope support 701.

[0078] As shown in Figure 1 and Figure 22 , the mechanical arm 8 is fixedly installed at the rear of the rack 1, and a welding gun is installed at the arm end thereof; when the upper pipe 1101, the lower pipe 1102, the head pipe 1103 and the seat pipe 1104 are all assembled, the mechanical arm 8 and the welding gun are started to weld the weld joint between the upper pipe 1101, the lower pipe 1102, the head pipe 1103 and the seat pipe 1104; after the welding is completed, the electric clamping jaw two 606 and the electric clamping jaw three 706 are opened, the servo lead screw three 604, the electric push rod two 605, the servo lead screw four 704, the electric push rod three 705 are returned to the original position, and the extension end of the electric push rod one 502 is extended, and the upper pipe 1101 and the lower pipe 1102 are respectively separated from the corresponding fixed assembly 505.

[0079] As shown in Figures 23-26 , the finished product transfer device 9 comprises a support frame 901, a reciprocating moving assembly 902, a transposition assembly 903, an electric clamping jaw four 904 and a conveying belt 905; the reciprocating moving assembly 902 comprises a reciprocating motor 9021, a rotating rod 9022, a connecting rod one 9023 and a horizontal moving rod 9024, and the transposition assembly 903 comprises a transposition sliding groove 9031, a transposition sliding rod 9032, a connecting rod two 9033, a fixed rod 9034 and a turnover rod 9035.

[0080] The conveying belt 905 is arranged on one side of the rack 1, and the support frame 901 is fixedly installed on the conveying belt 905; the reciprocating motor 9021 is fixedly installed on the side of the support frame 901 away from the rack 1, and the output end thereof is fixedly connected with one end of the rotating rod 9022, and the other end of the rotating rod 9022 is rotationally connected with one end of the connecting rod one 9023, and the other end of the connecting rod one 9023 is rotationally connected with the outer end of the horizontal moving rod 9024; the horizontal moving rod 9024 is horizontally slidably installed on the support frame 901, and the inner end thereof is fixedly connected with the fixed rod 9034; the transposition sliding groove 9031 is arranged on the side of the support frame 901 close to the rack 1, and the left and right parts of the transposition sliding groove 9031 are horizontal sliding grooves, and the middle part thereof is a V-shaped sliding groove, and the bottom end of the middle part of the V-shaped sliding groove is a vertical sliding groove; the transposition sliding rod 9032 is slidably installed in the transposition sliding groove 9031, one end of the connecting rod two 9033 is rotationally connected with the transposition sliding rod 9032, and the other end thereof is fixedly connected with the turnover rod 9035, and the turnover rod 9035 is perpendicular to the connecting rod two 9033; the turnover rod 9035 is rotationally installed in the fixed rod 9034; the electric clamping jaw four 904 is fixedly installed on a connecting rod, and the connecting rod is fixedly installed on the turnover rod 9035, and the connecting rod is perpendicular to the turnover rod 9035;

[0081] Specifically, the reciprocating motor 9021 is started, the rotating rod 9022 rotates, the horizontal moving rod 9024 is driven by the connecting rod I 9023 to move horizontally on the support frame 901, the horizontal moving rod 9024 drives the fixed rod 9034 to move towards the rack 1, and the transposition sliding rod 9032 is driven by the connecting rod II 9033 to slide in the transposition sliding groove 9031, when the transposition sliding rod 9032 moves to the vertical sliding groove, the turnover rod 9035 rotates to the vertical state, when the transposition sliding rod 9032 moves to the horizontal sliding groove close to the rack 1, the electric clamping jaw four 904 is driven by the turnover rod 9035 to move to the side of the welded bicycle frame 11, the electric clamping jaw four 904 is started to clamp the bicycle frame 11, the two electric clamping jaws one 503 are opened, the horizontal moving rod 9024 moves reversely, so as to drive the bicycle frame 11 to move to the conveyor belt 905, the electric clamping jaw four 904 releases the bicycle frame 11, and the conveyor belt 905 transports the bicycle frame 11 out.

[0082] The above-mentioned pushing motor 3041, transposition motor 401, rotating motor 5041, transfer motor 703 and reciprocating motor 9021 are all servo motors.

[0083] As shown in Figure 27 The control end 10 includes a main controller, a man-machine interactive display screen, an information transmission module, a storage module and a power module, and the main controller is electrically connected with the man-machine interactive display screen, the information transmission module, the storage module, the power module and the pushing motor 3041, the transposition motor 401, the servo lead screw I 501, the electric push rod I 502, the electric clamping jaw I 503, the rotating motor 5041, the servo lead screw II 602, the servo lead screw III 604, the electric push rod II 605, the electric clamping jaw II 606, the transfer motor 703, the servo lead screw IV 704, the electric push rod III 705, the electric clamping jaw III 706, the mechanical arm 8, the welding gun, the reciprocating motor 9021 and the conveyor belt 905; the main controller is used for controlling the operation of the whole bicycle frame automatic assembly welding machine; the man-machine interactive display screen is used for setting the working time of each electrical element and the automatic operation control after determining the set value; the information transmission module is used for information transmission between the main controller and the tube feeding device 3, the transposition device 4, the clamping device 5, the head tube mounting device 6, the seat tube mounting device 7, the mechanical arm 8, the welding gun and the finished product transfer device 9; the power module is used for providing stable power supply for the control end 10; and the storage module is used for storing the operation information data of the whole bicycle frame automatic assembly welding machine.

Claims

1. A bicycle frame automatic assembly welding machine for assembling and welding an upper tube (1101), a lower tube (1102), a head tube (1103) and a seat tube (1104) into a complete bicycle frame (11), characterized in that, The utility model relates to a kind of automatic bicycle frame welding machine, including rack (1), upper tube feeding device (2), lower tube feeding device (3), clamping device (5), head tube installation device (6), seat tube installation device (7), mechanical arm (8) and control end (10);The upper tube feeding device (2) and lower tube feeding device (3) are both installed on the front of rack (1), and are used for the feeding of upper tube (1101) and lower tube (1102) respectively; The clamping device (5) is arranged in the middle of the rack (1), and includes servo lead screw one (501), electric push rod one (502), electric clamping jaw one (503), rotating assembly (504), fixed assembly (505) and mounting rod (506);The mounting rod (506) is vertically rotatably installed in the middle of the rack (1), and is driven to rotate by the rotating assembly (504);The servo lead screw one (501) is provided with two, corresponding to the upper tube feeding device (2) and the lower tube feeding device (3), and is horizontally fixedly installed on the mounting rod (506);One electric push rod one (502) is slidably installed on each servo lead screw one (501), the electric push rod one (502) is perpendicular to the corresponding servo lead screw one (501), and the directions of the two electric push rod one (502) are the same;One electric clamping jaw one (503) is fixedly installed at the extension end of each electric push rod one (502), and the two electric clamping jaw one (503) are used for clamping the upper tube (1101) and the lower tube (1102) respectively;The fixed assembly (505) is provided with two groups, and the two groups of fixed assembly (505) are installed on the mounting rod (506), and are used for fixing the upper tube (1101) and the lower tube (1102) respectively; The head tube installation device (6) is arranged on the upper end of the rear of the rack (1), and the seat tube installation device (7) is arranged on the bottom end of the rear of the rack (1);The mechanical arm (8) is fixedly installed at the middle position of the rear of the rack (1), and a welding gun is installed at the arm end, for welding the bicycle frame (11);The control end (10) is used for controlling the operation of the whole bicycle frame automatic assembly welding machine; Each group of fixed assembly (505) includes fixed frame (5051), spring three (5052) and sliding clamping plate (5053);The fixed frame (5051) is fixedly installed on the mounting rod (506), and a pair of sliding clamping plates (5053) are symmetrically and vertically arranged in the middle of each fixed frame (5051), each sliding clamping plate (5053) is fixedly connected with a connecting sliding rod, the connecting sliding rod is horizontally slidably installed in the fixed frame (5051), and is elastically connected with the inner side wall of the fixed frame (5051) through the spring three (5052);Each pair of sliding clamping plates (5053) clamps the upper tube (1101) or the lower tube (1102) together.

2. The machine for automatic assembly and welding of bicycle frames according to claim 1, characterized in that, The upper pipe feeding device (2) comprises an upper pipe storage box (201), an upper pipe push plate (202), a spring one (203) and a sliding frame one (204); the upper pipe storage box (201) is fixedly installed on the rack (1), is provided with an upper pipe outlet (2011) on one end close to the corresponding electrically-driven clamping jaw one (503), and is provided with a clearance slide groove for the movement of the corresponding electrically-driven clamping jaw one (503) on the side wall; the other end of the upper pipe storage box (201) is slidably installed with the sliding frame one (204), and the sliding frame one (204) is elastically connected with the upper pipe storage box (201) through the spring one (203); the upper pipe push plate (202) is fixedly connected with the sliding frame one (204) and is slidably installed in the upper pipe storage box (201).

3. The machine for automatic assembly and welding of bicycle frames according to claim 1, characterized in that, The lower pipe feeding device (3) comprises a lower pipe storage box (301), a lower pipe push plate (302), a spring two (303), a pushing assembly (304) and a sliding frame two (305); the lower pipe storage box (301) is fixedly installed on the rack (1), is provided with a limiting slide groove (3012) on one end close to the corresponding electrically-driven clamping jaw one (503), and is provided with a lower pipe outlet (3011) at the end of the limiting slide groove (3012); the pushing assembly (304) is installed on the lower pipe storage box (301) and is used for pushing the lower pipe (1102) to move in the limiting slide groove (3012); the other end of the lower pipe storage box (301) is slidably installed with the sliding frame two (305), and the sliding frame two (305) is elastically connected with the lower pipe storage box (301) through the spring two (303); the lower pipe push plate (302) is fixedly connected with the sliding frame two (305) and is slidably installed in the lower pipe storage box (301).

4. The machine for automatic assembly and welding of a bicycle frame according to claim 3, characterized in that, The pushing assembly (304) comprises a pushing motor (3041), a rotating disc (3042), a transmission slide groove (3043) and a push rod (3044); the pushing motor (3041) is fixedly installed on the lower pipe storage box (301), and the output end is coaxially fixedly connected with the rotating disc (3042); the rotating disc (3042) is eccentrically fixed with a transmission slide rod, and the transmission slide rod is slidably installed in the transmission slide groove (3043); the push rod (3044) is provided with at least one, all the push rods (3044) are horizontally arranged and opposite to the limiting slide groove (3012); each push rod (3044) is slidably installed on the lower pipe storage box (301), and the tail end is fixedly connected with the vertically arranged transmission slide groove (3043).

5. The machine for automatic assembly and welding of bicycle frames according to claim 1, characterized in that, Further comprising the exchange device (4), the exchange device (4) includes the exchange motor (401), transmission gear (402), transmission shaft (403) and mounting disc (404);The transmission shaft (403) is vertically arranged, the bottom end is rotatably mounted on the front of the rack (1), the top end is coaxially fixedly installed with the mounting disc (404), and one transmission gear (402) is coaxially fixedly installed on the shaft body;The output end of the exchange motor (401) is fixedly installed on the rack (1), and one transmission gear (402) is coaxially fixedly connected;Two transmission gears (402) are engaged with each other;The mounting disc (404) is uniformly distributed with a plurality of groups of lower pipe feeding devices (3) on the circumference.

6. The machine for automatic assembly and welding of bicycle frames according to claim 1, characterized in that, The head tube mounting device (6) includes a head tube storage box (601), a servo lead screw two (602), a head tube push plate (603), a servo lead screw three (604), an electric push rod two (605) and an electric clamping jaw two (606). The head tube storage box (601) is horizontally fixedly installed at the top end of the rear of the rack (1), and one end of the head tube storage box (601) is provided with a head tube outlet (6011). The servo lead screw two (602) is horizontally installed on the head tube storage box (601), and the head tube push plate (603) is slidably installed on the servo lead screw two (602) and slides in the head tube storage box (601). The servo lead screw three (604) is vertically installed on the rack (1), and is located in the same vertical plane as the servo lead screw two (602). The electric push rod two (605) points to the head tube storage box (601) and is slidably installed on the servo lead screw three (604), and an electric clamping jaw two (606) is fixedly installed on the telescopic end of the electric push rod two (605).

7. The machine for automatic assembly and welding of bicycle frames according to claim 1, characterized in that, The seat tube mounting device (7) includes a slope support (701), a seat tube transfer plate (702), a transfer motor (703), a servo lead screw four (704), an electric push rod three (705) and an electric clamping jaw three (706). The slope support (701) is fixedly installed on the bottom end of the rear of the rack (1), the upper end surface thereof is ramp-shaped, used for placing the seat tube (1104), and the innermost end of the slope support (701) is fixedly provided with a seat tube support plate. The transfer motor (703) is fixedly installed on the slope support (701), and the output end thereof is coaxially fixedly connected with a turnover shaft, which is horizontally rotatably installed on the slope bottom of the slope of the upper end surface of the slope support (701). The seat tube transfer plate (702) is provided with a plurality of seat tube transfer plates (702), each of which is formed by splicing an arc-shaped plate and a transition straight plate, and the upper end surface is provided with a transition arc matched with the seat tube (1104). All seat tube transfer plates (702) are eccentrically installed on the turnover shaft through the arc-shaped plate, and the transition straight plate intermittently points to the seat tube support plate. The servo lead screw four (704) is vertically fixedly installed on the bottom end of the rear of the rack (1), the electric push rod three (705) is slidably installed on the servo lead screw four (704), and the electric clamping jaw three (706) is vertically fixedly installed on the telescopic end of the electric push rod three (705). The electric clamping jaw three (706) intermittently penetrates through the seat tube support plate and clamps the seat tube (1104).

8. The machine for automatic assembly and welding of bicycle frames according to claim 1, characterized in that, Also include finished product transfer device (9), the finished product transfer device (9) includes support frame (901), reciprocating moving assembly (902), transposition assembly (903), electric clamp four (904) and conveyor belt (905), the conveyor belt (905) is arranged in one side of rack (1), the support frame (901) is fixedly installed on the conveyor belt (905), the reciprocating moving assembly (902) and transposition assembly (903) are both installed on the support frame (901), for moving electric clamp four (904) moves.

9. The machine for automatic assembly and welding of bicycle frames according to claim 8, characterized in that, The output end of the reciprocating moving assembly (902) is horizontally slidably installed on the support frame (901), the transposition assembly (903) includes transposition sliding slot (9031), transposition sliding rod (9032), connecting rod two (9033), fixed rod (9034) and turnover rod (9035), the fixed rod (9034) is fixedly connected with the output end of the reciprocating moving assembly (902), the transposition sliding slot (9031) is arranged in one side of the support frame (901) close to the rack (1), the left and right two parts of the transposition sliding slot (9031) are horizontal sliding slots, the middle part is V-shaped sliding slot, the bottom end of the middle part of the V-shaped sliding slot is vertical sliding slot, the transposition sliding rod (9032) is slidably installed in the transposition sliding slot (9031), one end of the connecting rod two (9033) is rotatably connected with the transposition sliding rod (9032), the other end is fixedly connected with the turnover rod (9035), and the turnover rod (9035) is perpendicular to the connecting rod two (9033), the turnover rod (9035) is rotatably installed in the fixed rod (9034), the electric clamp four (904) is fixedly installed on the connecting rod, the connecting rod is fixedly installed on the turnover rod (9035), and the connecting rod is perpendicular to the turnover rod (9035).

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