Bicycle machining welding equipment and process

Abstract

The invention discloses bicycle machining welding equipment and technology, and particularly relates to the field of bicycle welding, the welding equipment comprises a workbench, the workbench is provided with a fixing mechanism, the fixing mechanism is used for fixing a head pipe and a side pipe, and the end of the side pipe is attached to the side face of the head pipe; the pressure applying mechanism comprises a pressure applying plate capable of moving linearly, the pressure applying plate is used for applying pressure to the side pipe after the side pipe is fixed, and the pressure is applied from the end of the side pipe to the side face of the head pipe. By means of the pressure applying mechanism, pressure perpendicular to the side face of the head pipe is applied to the cross beam pipe and the inclined pipe in the welding process, the joints of the cross beam pipe and the inclined pipe and the head pipe can be always kept in a tightly attached state, and the situation that the joints of the cross beam pipe and the inclined pipe and the head pipe deform due to welding heat in the welding process is avoided; and the connection parts of the cross beam pipe and the inclined pipe with the head pipe are separated, so that the welding quality is influenced.

Description

Technical Field

[0001] The invention relates to the technical field of bicycle welding, and more specifically to a bicycle processing and welding device and process. Background Art

[0002] During the bicycle manufacturing process, the bicycle frame bears the weight of the entire vehicle and various components. It is a very critical step in the bicycle frame manufacturing process. It connects various pipes together to form a sturdy and durable frame to ensure the overall structural strength and rigidity of the bicycle. At present, the various parts of the bicycle frame are mainly formed into a whole by welding.

[0003] A bicycle frame mainly includes a head tube, a cross tube, an oblique tube and a seat tube. The head tube is used to connect the front fork and fix the handlebars. The cross tube is horizontally or slightly tilted to connect the head tube, mainly to increase the overall rigidity. The oblique tube is one of the parts that bear the greatest stress in the frame. Therefore, when the various parts are welded and assembled, the welding between the cross tube and the oblique tube and the head tube is particularly important. When welding, the ends of the cross tube and the oblique tube need to be welded and fixed to the sides of the head tube respectively.

[0004] In the prior art, the welding of bicycle frames is often performed by placing the frame pipes flat on a workbench, welding the side of the pipe joint facing upward first, and then turning the pipe over to weld the other side after welding. Therefore, when the ends of the crossbeam tube and the oblique tube are welded to the side of the head tube, in order to improve the welding efficiency, the crossbeam tube, the oblique tube and the head tube are placed flat on the workbench together for fixing, and the ends of the crossbeam tube and the oblique tube are respectively pressed against the side of the head tube, so that the welding and fixing between the crossbeam tube and the oblique tube and the head tube can be completed at the same time. However, in order to form a more compact geometric structure in the front triangle area of ​​the bicycle frame, improve the rigidity of the frame, and make the bicycle more stable and direct when operating, it is usually necessary to set the welding ends of the crossbeam tube and the oblique tube closer. In addition, during the welding process of the bicycle frame made of magnesium alloy, due to the high thermal conductivity and low melting point of magnesium alloy, it is easy to cause thermal expansion deformation at the welding point between the crossbeam tube and the oblique tube and the head tube due to the heat during welding, resulting in problems affecting the welding quality. Summary of the invention

[0005] The present invention provides a bicycle processing and welding device and process to solve the problem that: currently, for a bicycle frame in which the welding ends of a cross beam tube and an oblique tube are arranged close to each other and a magnesium alloy is used for welding, due to the high thermal conductivity and low melting point of the magnesium alloy, the heat during welding may cause thermal expansion deformation at the welding points between the cross beam tube and the oblique tube and the head tube, thus affecting the welding quality.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: A bicycle processing and welding device, used for welding and fixing a head tube and a side tube, wherein the side tube includes a crossbeam tube and an oblique tube, comprises: a workbench, on which are arranged:

[0007] The fixing mechanism is used to fix the head pipe and the side pipe, and make the end of the side pipe fit with the side of the head pipe;

[0008] A pressure mechanism, the pressure mechanism comprising a pressure plate capable of linear movement, the pressure plate being used to apply pressure to the side tube after the side tube is fixed, the pressure being applied from the end of the side tube facing the side of the head tube, and the pressure being perpendicular to the side of the side tube;

[0009] A welding mechanism, the welding mechanism is used to weld and fix the end of the side pipe to the side of the head pipe;

[0010] The flipping mechanism is used to flip the head tube and the side tube.

[0011] In a preferred embodiment, the pressure mechanism also includes a connecting seat, a pressure plate is slidably arranged in the connecting seat, and an elastic member 2 is arranged at one end of the pressure plate, a power component 3 is fixedly installed on the workbench, a round head is installed at the output end of the power component 3, and an inclined groove is opened on the front side of the pressure plate, and the round head is in movably contact with the inner wall of the inclined groove.

[0012] In a preferred embodiment, the welding mechanism includes a linear drive component three, the linear drive component three includes a support seat, a power component four is installed on the support seat, a slide seat is installed at the output end of the power component four, a guide mechanism is also provided on the slide seat, the guide mechanism includes a sliding block, the sliding block slides horizontally on the slide seat, a top seat is vertically slidably provided on the sliding block, a welding gun is installed at the end of the top seat, a vertical axis is fixedly provided at the bottom of the top seat, a ball is installed at the bottom end of the vertical axis, a guide seat is installed on the side of the support seat, a track groove is opened on the guide seat, and the ball is slidably arranged in the track groove.

[0013] In a preferred embodiment, a guide groove is further provided on the guide seat, the guide groove is connected to the track groove, and the guide groove is located in the middle of the track groove.

[0014] In a preferred embodiment, the fixing mechanism includes a head pipe fixing assembly and a side pipe fixing assembly, which are used to fix the head pipe and the side pipe respectively and make the end of the side pipe fit with the side of the head pipe.

[0015] In a preferred embodiment, the head pipe fixing assembly includes a mounting seat, the mounting seat is placed on the surface of a workbench, and a power component 1 is installed on the workbench, the output end of the power component 1 is hinged with a connecting shaft, the end of the connecting shaft extends into the mounting seat and is fixedly installed with a support plate, the head pipe is placed in the mounting seat, and the two ends of the head pipe are respectively abutted against the inner wall of the mounting seat and the support plate.

[0016] In a preferred embodiment, the side tube fixing assembly includes a fixing plate, a sliding groove is formed on the fixing plate, a sliding block is slidably arranged in the sliding groove, a rubber pad is fixed on the upper part of the sliding block, the side tube is placed on the sliding block and fixed by the rubber pad, and an elastic member 1 is arranged on one side of the sliding block.

[0017] In a preferred embodiment, the flipping mechanism includes a rotating shaft, a connecting seat is fixedly connected to one end of the rotating shaft, the rotating shaft is rotatably set on the workbench, and the other end of the rotating shaft is fixedly connected to the mounting seat, and a power component 2 is installed on the workbench, a driving gear is installed at the output end of the power component 2, a driven gear is fixedly sleeved on the rotating shaft, the driving gear is meshed with the driven gear, and the round head and the end of the rotating shaft are collinear in the horizontal direction.

[0018] In a preferred embodiment, the welding mechanism includes a linear drive component 1 and a linear drive component 2, and the linear drive component 1 and the linear drive component 2 constitute a dual-axis moving mechanism. The welding mechanism also includes a linear drive component 4, and the linear drive component 4 includes a support plate. A power component 5 is fixedly installed on the workbench, and the output end of the power component 5 is fixedly connected to the support plate, and the linear drive component 1 is installed on the support plate.

[0019] A welding process for bicycle processing and welding equipment comprises the following steps:

[0020] Step 1: Fix the head pipe, the crossbeam pipe and the oblique pipe by using the head pipe fixing assembly and the side pipe fixing assembly, and make the ends of the crossbeam pipe and the oblique pipe fit with the side of the head pipe;

[0021] Step 2: The pressure mechanism applies pressure to the cross beam tube and the oblique tube through the pressure plate, so that the joints between the cross beam tube and the oblique tube and the head tube are always kept in close contact;

[0022] Step 3: The welding mechanism drives the welding gun to weld the horizontal beam tube and the oblique tube to the upper weld of the head tube. After the welding is completed, the flipping mechanism drives the beam tube, the oblique tube and the head tube to flip;

[0023] Step 4: Finally, the welding mechanism drives the welding gun to weld the lower welds of the cross beam tube, the inclined tube and the head tube that are turned upward.

[0024] The beneficial effects of the present invention are:

[0025] The present invention applies pressure perpendicular to the side of the head pipe to the cross beam tube and the oblique tube during the welding process through the pressure-applying mechanism, so that the joints between the cross beam tube and the oblique tube and the head pipe can always be kept in a close contact state, thereby avoiding the problem that the joints between the cross beam tube and the oblique tube and the head pipe are deformed due to the heat during welding, resulting in separation of the joints between the cross beam tube and the oblique tube and the head pipe, thereby affecting the welding quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention.

[0027] Figure 2 It is a three-dimensional structural schematic diagram of part of the structure of the present invention.

[0028] Figure 3 It is a three-dimensional structural schematic diagram of the fixing mechanism of the present invention.

[0029] Figure 4 for Figure 1 Enlarged view of part A.

[0030] Figure 5 It is a schematic diagram of the top cross-sectional structure of the pressure applying mechanism of the present invention.

[0031] Figure 6 It is a three-dimensional structural schematic diagram of the welding mechanism of the present invention.

[0032] Figure 7 It is a schematic diagram of the three-dimensional structure of the guide mechanism of the present invention.

[0033] Figure 8 It is a schematic diagram of the three-dimensional structure of the guide seat of the present invention.

[0034] Fig. 9 It is a three-dimensional schematic diagram of the head pipe, the cross beam pipe and the oblique pipe of the present invention.

[0035] Fig.10 It is a process flow chart of the present invention.

[0036] The accompanying drawings are marked as follows: 1. workbench; 2. fixing mechanism; 21. head pipe fixing assembly; 211. mounting seat; 212. power component 1; 213. connecting shaft; 214. abutment plate; 22. side pipe fixing assembly; 221. fixing plate; 2211. notch; 222. slide groove; 223. slider; 224. rubber pad; 225. elastic member 1; 3. turning mechanism; 31. rotating shaft; 32. power component 2; 33. driving gear; 34. driven gear; 4. pressure mechanism; 41. connecting seat; 42. pressure plate; 421 , inclined groove; 43, elastic member two; 44, power component three; 45, round head; 5, welding mechanism; 51, linear drive component one; 52, linear drive component two; 53, linear drive component three; 531, support seat; 532, power component four; 533, slide seat; 54, linear drive component four; 541, support plate; 542, power component five; 55, welding gun; 6, guide mechanism; 61, sliding block; 62, top seat; 63, vertical axis; 631, round ball; 64, guide seat; 641, track groove; 642, guide groove;

[0037] 101, head tube; 102, side tube; 1021, cross tube; 1022, oblique tube. DETAILED DESCRIPTION

[0038] 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.

[0039] Refer to the instruction manual Figures 1 to 6 A bicycle processing and welding device is used for welding and fixing a head tube 101 and a side tube 102, wherein the side tube 102 includes a crossbeam tube 1021 and an oblique tube 1022, and comprises: a workbench 1, on which are arranged:

[0040] The fixing mechanism 2 is used to fix the head pipe 101 and the side pipe 102, and make the end of the side pipe 102 fit with the side of the head pipe 101;

[0041] The pressure applying mechanism 4 includes a pressure applying plate 42 that can move linearly. The pressure applying plate 42 is used to apply pressure to the side tube 102 after the side tube 102 is fixed. The pressure is applied from the end of the side tube 102 to the side of the head tube 101, and the pressure is perpendicular to the side of the side tube 102;

[0042] The welding mechanism 5 is used to weld and fix the end of the side pipe 102 to the side of the head pipe 101;

[0043] The flipping mechanism 3 is used to flip the head pipe 101 and the side pipe 102 .

[0044] It should be noted that the fixing mechanism 2 can be mainly used to fix the head pipe 101 and the side pipe 102, and the side pipe 102 includes a cross beam pipe 1021 and an oblique pipe 1022, and the ends of the cross beam pipe 1021 and the oblique pipe 1022 need to be fitted with the side of the head pipe 101 to ensure that the cross beam pipe 1021 and the oblique pipe 1022 are in close contact with the head pipe 101, and to avoid displacement of the joint between the ends of the cross beam pipe 1021 and the oblique pipe 1022 and the side of the head pipe 101 to affect the welding quality. , and the welding mechanism 5 can be driven by a robot arm to move along the trajectory of the joint between the ends of the crossbeam tube 1021 and the oblique tube 1022 and the side of the head tube 101 for welding. The flipping mechanism 3 is mainly used to flip the fixed crossbeam tube 1021, the oblique tube 1022 and the head tube 101, and the flipping can be driven by a motor. The linear movement of the pressure plate 42 can be driven by a hydraulic cylinder to ensure the stable connection between the joints between the ends of the crossbeam tube 1021 and the oblique tube 1022 and the side of the head tube 101.

[0045] The specific implementation scenario is as follows: during welding, the cross beam tube 1021, the oblique tube 1022 and the head tube 101 are first fixed by the fixing mechanism 2, and the ends of the cross beam tube 1021 and the oblique tube 1022 are fitted with the side of the head tube 101, and then the pressure plate 42 is driven to move linearly to apply pressure to the cross beam tube 1021 and the oblique tube 1022, so that the joints between the cross beam tube 1021 and the oblique tube 1022 and the head tube 101 are always kept in a close contact state, and then the welding mechanism 5 welds the joints between the cross beam tube 1021, the oblique tube 1022 and the head tube 101, as shown in FIG. Figure 1 As shown, since the cross beam tube 1021, the oblique tube 1022 and the head tube 101 are in a flat state when they are fixed, the cross beam tube 1021, the oblique tube 1022 and the head tube 101 are first welded and fixed at the joint facing the upper part by the welding mechanism 5, and then the cross beam tube 1021, the oblique tube 1022 and the head tube 101 are turned over by the turning mechanism 3, and then the cross beam tube 1021, the oblique tube 1022 and the head tube 101 are welded at the other joint. During the welding process, the pressure-applying mechanism 4 applies pressure to the cross beam tube 1021 and the oblique tube 1022, so that the joints between the cross beam tube 1021 and the oblique tube 1022 and the head tube 101 can always remain in close contact with each other, thereby avoiding the problem that the joints between the cross beam tube 1021 and the oblique tube 1022 and the head tube 101 are deformed due to the heat during welding, resulting in separation of the joints between the cross beam tube 1021 and the oblique tube 1022 and the head tube 101, thereby affecting the welding quality.

[0046] For further information, please refer to the attached manual. Figure 3The fixing mechanism 2 includes a head pipe fixing assembly 21 and a side pipe fixing assembly 22 , which are used to fix the head pipe 101 and the side pipe 102 respectively, and make the end of the side pipe 102 fit with the side of the head pipe 101 .

[0047] For further information, please refer to the attached manual. Figure 3 The head pipe fixing assembly 21 includes a mounting seat 211, which is placed on the surface of the workbench 1, and a power component 212 is installed on the workbench 1. The output end of the power component 212 is hinged with a connecting shaft 213, and the end of the connecting shaft 213 extends into the mounting seat 211 and is fixedly installed with a support plate 214. The head pipe 101 is placed in the mounting seat 211, and the two ends of the head pipe 101 are respectively abutted against the inner wall of the mounting seat 211 and the support plate 214.

[0048] It should be noted that the power component 1 212 is a cylinder, which is used to place the head pipe 101 in the mounting seat 211 and then drive the abutment plate 214 to move toward the direction of the head pipe 101 through the cylinder, so that the abutment plate 214 is pressed against the head pipe 101, thereby fixing the head pipe 101.

[0049] It should also be noted that, since the output end of the cylinder is hinged to the connecting shaft 213, after preliminary welding, when the cross beam tube 1021, the oblique tube 1022 and the head tube 101 are flipped, the cylinder can be kept stationary through the hinged setting of the output end of the power component 212 and the connecting shaft 213, thereby avoiding the problem of the cylinder moving synchronously with the flipping, which would affect the normal use of the cylinder.

[0050] For further information, please refer to the attached manual. Figure 3 The side tube fixing assembly 22 includes a fixing plate 221, a slide groove 222 is opened on the fixing plate 221, a slider 223 is slidably arranged in the slide groove 222, a rubber pad 224 is fixedly arranged on the slider 223, the side tube 102 is placed on the slider 223 and fixed by the rubber pad 224, and an elastic member 225 is arranged on one side of the slider 223.

[0051] It should be noted that the elastic member 225 is a spring. When fixing the side tube 102, first pull the slider 223 to stretch the spring, then place the side tube 102 in the slider 223, fix the side tube 102 through the rubber pad 224, and make the end of the side tube 102 fit with the slider 223, then release the slider 223, and make it return to its original position through the elastic deformation of the spring, and drive the side tube 102 to move in the direction close to the head tube 101, so that the end of the side tube 102 can fit with the side of the head tube 101. In addition, a notch 2211 is provided on the fixing plate 221, so that after the cross beam tube 1021, the oblique tube 1022 and the head tube 101 are turned over, the seams between the cross beam tube 1021, the oblique tube 1022 and the head tube 101 can leak through the notch 2211, so that they do not hinder the welding operation.

[0052] It should also be noted that since the side tube 102 includes a cross tube 1021 and an oblique tube 1022 , the cross tube 1021 and the oblique tube 1022 can be fixed by the side tube fixing assembly 22 , and their ends can be fitted with the head tube 101 .

[0053] For further information, please refer to the attached manual. Figure 4 The flip mechanism 3 includes a rotating shaft 31, which is rotatably arranged on the workbench 1, and one end of the rotating shaft 31 is fixedly connected to the mounting seat 211, and a power component 2 32 is installed on the workbench 1, and a driving gear 33 is installed on the output end of the power component 2 32, and a driven gear 34 is fixedly sleeved on the rotating shaft 31, and the driving gear 33 is meshed with the driven gear 34.

[0054] It should be noted that the power component 2 32 is a motor, which drives the driving gear 33 to rotate, and through the meshing transmission of the driving gear 33 and the driven gear 34, it can drive the rotating shaft 31 to rotate through the driven gear 34. Since the end of the rotating shaft 31 is fixedly connected to the mounting seat 211, and the side tube fixing assembly 22 is arranged on the fixing plate 221 fixedly arranged between the mounting seat 211, when the motor is driven, the cross beam tube 1021, the oblique tube 1022 and the head tube 101 can be flipped at the same time.

[0055] In the above technical solution, pressure is applied to the cross beam tube 1021 and the oblique tube 1022 by a pressure plate 42 that can move linearly, so that the ends of the cross beam tube 1021 and the oblique tube 1022 can always keep in close contact with the side of the head tube 101. However, after the cross beam tube 1021, the oblique tube 1022 and the head tube 101 are initially welded, the cross beam tube 1021, the oblique tube 1022 and the head tube 101 need to be turned over to facilitate welding of another part of the seam between the cross beam tube 1021, the oblique tube 1022 and the head tube 101. If this is achieved by driving the pressure plate 42 to move with a hydraulic cylinder, the hydraulic cylinder needs to move with the cross beam tube 1021, the oblique tube 1022 and the head tube 101. The head pipe 101 is flipped over, but during the use of the hydraulic cylinder, since the hydraulic cylinder is connected to the pipeline of the hydraulic system, if the pipeline moves with the movement of the hydraulic cylinder, the continuous bending and twisting will cause fatigue and wear of the pipeline, increasing the risk of leakage or breakage. Therefore, it is necessary to ensure that the hydraulic cylinder always remains in a fixed state. For this purpose, the present invention proposes a specific structure of a pressure mechanism 4, so that under the premise that the hydraulic cylinder always maintains a state, the pressure plate 42 can move with the flipping of the cross beam tube 1021, the oblique tube 1022 and the head pipe 101, and ensure that the ends of the cross beam tube 1021 and the oblique tube 1022 can always remain in close contact with the side of the head pipe 101.

[0056] For details, please refer to the attached manual. Figure 5 The pressure mechanism 4 also includes a connecting seat 41, which is fixedly connected to the other end of the rotating shaft 31. A pressure plate 42 is slidably arranged in the connecting seat 41, and an elastic member 2 43 is arranged at one end of the pressure plate 42. A power component 3 44 is fixedly installed on the workbench 1, and a round head 45 is installed at the output end of the power component 3 44. An inclined groove 421 is opened on the front side of the pressure plate 42, and the round head 45 is movably contacted with the inner wall of the inclined groove 421, and the round head 45 is collinear with the end of the rotating shaft 31 in the horizontal direction.

[0057] It should be noted that the power component three 44 is a hydraulic cylinder, and the elastic component two 43 is a spring. The hydraulic cylinder drives the round head 45 to move in the direction close to the connecting seat 41, so that the round head 45 extends into the connecting seat 41, and makes the round head 45 contact with the inclined groove 421 provided on the pressure plate 42, and at the same time pushes the pressure plate 42 to move in the direction close to the head tube 101, so that the pressure plate 42 applies a force perpendicular to the head tube 101 to the cross beam tube 1021 and the inclined tube 1022, so as to ensure that the ends of the cross beam tube 1021 and the inclined tube 1022 can always keep in close contact with the side of the head tube 101, and at the same time can compress the spring, when the cross beam tube 1021, the inclined tube 1022 and the head tube 101 are driven to flip through the flipping mechanism 3 At the same time, since the rotating shaft 31 is fixed to the connecting seat 41, the pressure plate 42 can be driven by the connecting seat 41 to achieve synchronous movement. At the same time, since the round head 45 and the rotating shaft 31 are collinear in the horizontal direction, the hydraulic cylinder and the round head 45 can maintain a fixed position, and the pressure plate 42 can achieve orbital movement with the round head 45 as the center. Under the premise that the hydraulic cylinder always maintains a state, the pressure plate 42 can move with the flipping of the crossbeam tube 1021, the oblique tube 1022 and the head tube 101, and ensure that the ends of the crossbeam tube 1021 and the oblique tube 1022 can always maintain a close contact with the side of the head tube 101, avoiding the need for synchronous movement of the hydraulic cylinder, which will cause the risk of leakage or damage to the hydraulic cylinder pipeline.

[0058] For further information, please refer to the attached manual. Figure 6 The welding mechanism 5 includes a linear drive component 1 51, a linear drive component 2 52 and a welding gun 55. The linear drive component 1 51 and the linear drive component 2 52 constitute a dual-axis moving mechanism.

[0059] It should be noted that both the linear drive component 1 51 and the linear drive component 2 52 can adopt a drive component for driving linear motion such as a screw nut device or a linear motor. Through its linear drive, the position of the welding gun 55 can be adjusted to ensure that the output end of the welding gun 55 can achieve precise welding during welding.

[0060] In the above technical solution, if Fig. 9As shown, the joints between the ends of the crossbeam tube 1021 and the oblique tube 1022 and the side surfaces of the head tube 101 are welding tracks. Since the crossbeam tube 1021 is horizontally arranged, the oblique tube 1022 is inclined, and the head tube 101, the crossbeam tube 1021 and the oblique tube 1022 are all pipe fittings, the welding tracks at the joints are relatively complex. Although the welding gun 55 can be driven to move along the welding track by programming a robot arm to perform welding operations, the robot arm is not suitable for use in small projects due to its high price and maintenance cost. For this reason, the present invention further proposes a linear drive component 53 and a guide mechanism 6 for guiding the welding gun 55, so that the welding gun 55 can realize complex welding track movements without programming operations by a robot arm, thereby greatly reducing production costs.

[0061] For details, please refer to the attached manual. Figures 6 to 8 The welding mechanism 5 also includes a linear drive component three 53, and the linear drive component three 53 includes a support seat 531. A power component four 532 is installed on the support seat 531. A slide seat 533 is installed at the output end of the power component four 532. A guide mechanism 6 is also provided on the slide seat 533. The guide mechanism 6 is used to guide the welding gun 55 so that the welding gun 55 moves along the welding track. The guide mechanism 6 includes a sliding block 61. The sliding block 61 slides horizontally on the slide seat 533. A top seat 62 is vertically slidably provided on the sliding block 61. A vertical shaft 63 is fixedly provided at the bottom of the top seat 62. A ball 631 is installed at the bottom end of the vertical shaft 63. A guide seat 64 is installed on the side of the support seat 531. A track groove 641 is opened on the guide seat 64, and the ball 631 is slidably set in the track groove 641.

[0062] It should be noted that the power component 532 can be a cylinder. In the process of driving the welding gun 55 to move linearly by the cylinder, the vertical shaft 63 can be driven to move synchronously through the top seat 62. Since the ball 631 at the end of the vertical shaft 63 is slidably arranged in the track groove 641, and the track groove 641 and the ends of the cross beam tube 1021 and the inclined tube 1022 are in the same track as the joints on the side of the head tube 101, the ball 631 can be driven to move in the track groove 641. At the same time, since the sliding block 61 is slidably arranged on the sliding seat 533, and the top seat 62 slides vertically, The vertical shaft 63 is movably arranged on the sliding block 61, and the welding gun 55 is fixedly arranged on the top seat 62. Therefore, the welding gun 55 can realize up, down, left and right movements under the cooperation of the sliding block 61 and the top seat 62. At this time, since the vertical shaft 63 is fixedly connected to the top seat 62, and the ball 631 at the end of the vertical shaft 63 slides in the track groove 641, it can drive the welding gun 55 to move along the track groove 641, so as to realize the welding gun 55 to move along the track of the joint between the end of the cross beam tube 1021 and the inclined tube 1022 and the side of the head tube 101 to perform welding operation.

[0063] For further information, please refer to the attached manual. Figure 6 The welding mechanism 5 also includes a linear drive component four 54, the linear drive component four 54 includes a support plate 541, a power component five 542 is fixedly installed on the workbench 1, the output end of the power component five 542 is fixedly connected to the support plate 541, and the linear drive component one 51 is installed on the support plate 541.

[0064] It should be noted that there are two trajectory grooves 641, and the two trajectory grooves 641 are mirror-imaged. After the end portions of the crossbeam tube 1021 and the oblique tube 1022 are welded to the joints of the side of the head tube 101 facing upward, the crossbeam tube 1021, the oblique tube 1022 and the head tube 101 are flipped over. After the flipping is completed, the support plate 541 is driven by the cylinder to drive the welding gun 55 back to the initial position, and then the welding gun 55 is driven to move by the linear drive component 3 53 and the guide mechanism 6 to weld the joints of the other part.

[0065] In the above technical solution, although the distance between the ends of the cross beam tube 1021 and the oblique tube 1022 is relatively close, there is still a certain distance between them. Therefore, in order to prevent the welding gun 55 from causing damage to the side of the head pipe 101 during the movement of the welding gun 55 over this distance, the welding gun 55 can be turned off and then turned on again during the movement of the welding gun 55 over this distance to avoid this problem. However, repeated switching on and off will cause the welding area to undergo multiple thermal cycles, resulting in changes in the microstructure of the heat-affected zone, causing deformation of the side of the head pipe 101. Therefore, in this distance, the cross beam tube 1021, the oblique tube 1022 and the head pipe 101 can be moved to a certain distance. The pipe 101 is moved, or the welding gun 55 is moved to make the welding gun 55 away from the head pipe 101 to solve the problem. However, if the crossbeam pipe 1021, the oblique pipe 1022 and the head pipe 101 are moved, since the crossbeam pipe 1021, the oblique pipe 1022 and the head pipe 101 need to be fixed and flipped, and this series of operations need to be driven by a driving component, and it is also necessary to ensure that the driving component does not move with these operations, it is very easy to cause interference in the movement of the crossbeam pipe 1021, the oblique pipe 1022 and the head pipe 101. Therefore, the present invention adopts a method of moving the welding gun 55 to make the welding gun 55 away from the head pipe 101 in this distance.

[0066] For details, please refer to the attached manual. Figure 8 The guide seat 64 is also provided with a guide groove 642 , which is connected to the track groove 641 and is located in the middle of the track groove 641 .

[0067] It should be noted that, by providing a guide groove 642 connected to the trajectory groove 641 on the guide seat 64, when the welding gun 55 moves along the trajectory groove 641, the guide groove 642 can be used to keep the welding gun 55 away from the head pipe 101 during the movement of this distance, so as to avoid the welding gun 55 causing damage to the side of the head pipe 101.

[0068] Refer to the instruction manual Fig.10 , a welding process for bicycle processing and welding equipment, comprising the following steps:

[0069] Step 1: fix the head pipe 101, the cross pipe 1021 and the oblique pipe 1022 by using the head pipe fixing assembly 21 and the side pipe fixing assembly 22, and make the ends of the cross pipe 1021 and the oblique pipe 1022 fit with the side of the head pipe 101;

[0070] Step 2: The pressure mechanism 4 applies pressure to the cross beam tube 1021 and the oblique tube 1022 through the pressure plate 42, so that the joints between the cross beam tube 1021 and the oblique tube 1022 and the head tube 101 are always kept in close contact;

[0071] Step 3: The welding mechanism 5 drives the welding gun 55 to weld the horizontal cross beam tube 1021 and the oblique tube 1022 to the upper weld of the head tube 101. After the welding is completed, the flipping mechanism 3 drives the cross beam tube 1021, the oblique tube 1022 and the head tube 101 to flip;

[0072] Step 4: Finally, the welding mechanism 5 drives the welding gun 55 to weld the cross beam tube 1021 and the inclined tube 1022 to the lower weld of the head tube 101 which is turned upside down.

[0073] The above-mentioned embodiments only express several implementation methods of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the present invention. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention.

Claims

1. A bicycle processing and welding device, used for welding and fixing a head tube (101) and a side tube (102), wherein the side tube (102) comprises a cross tube (1021) and an oblique tube (1022), characterized in that: The invention comprises a workbench (1), on which is arranged: A fixing mechanism (2), the fixing mechanism (2) being used to fix the head pipe (101) and the side pipe (102), and to make the end of the side pipe (102) fit with the side surface of the head pipe (101); A pressure mechanism (4), the pressure mechanism (4) comprising a pressure plate (42) capable of linear movement, the pressure plate (42) being used to apply pressure to the side tube (102) after the side tube (102) is fixed, the pressure being applied from the end of the side tube (102) toward the side of the head tube (101), and the pressure being perpendicular to the side of the side tube (102); A welding mechanism (5), the welding mechanism (5) being used to weld and fix the end of the side pipe (102) to the side surface of the head pipe (101); A turning mechanism (3) is used to turn over the head tube (101) and the side tube (102).

2. The bicycle processing and welding equipment according to claim 1, characterized in that: The pressure mechanism (4) also includes a connecting seat (41), the pressure plate (42) is slidably arranged in the connecting seat (41), and one end of the pressure plate (42) is provided with an elastic member 2 (43), a power component 3 (44) is fixedly installed on the workbench (1), and a round head (45) is installed at the output end of the power component 3 (44), and an inclined groove (421) is opened on the front side of the pressure plate (42), and the round head (45) is in active contact with the inner wall of the inclined groove (421).

3. The bicycle processing and welding equipment according to claim 2, characterized in that: The welding mechanism (5) comprises a linear drive assembly (53), the linear drive assembly (53) comprises a support seat (531), a power component (532) is mounted on the support seat (531), a slide seat (533) is mounted on the output end of the power component (532), a guide mechanism (6) is further arranged on the slide seat (533), the guide mechanism (6) comprises a sliding block (61), the sliding block (61) slides transversely on the slide seat (533) A top seat (62) is vertically slidably arranged on the sliding block (61), a welding gun (55) is installed at the end of the top seat (62), a vertical shaft (63) is fixedly arranged at the bottom of the top seat (62), a round ball (631) is installed at the bottom end of the vertical shaft (63), a guide seat (64) is installed on the side of the support seat (531), a track groove (641) is opened on the guide seat (64), and the round ball (631) is slidably arranged in the track groove (641).

4. The bicycle processing and welding equipment according to claim 3, characterized in that: The guide seat (64) is also provided with a guide groove (642), the guide groove (642) is connected to the track groove (641), and the guide groove (642) is located in the middle of the track groove (641).

5. The bicycle processing and welding equipment according to claim 4, characterized in that: The fixing mechanism (2) comprises a head pipe fixing assembly (21) and a side pipe fixing assembly (22), wherein the head pipe fixing assembly (21) and the side pipe fixing assembly (22) are respectively used to fix the head pipe (101) and the side pipe (102), and to make the end of the side pipe (102) fit with the side surface of the head pipe (101).

6. The bicycle processing and welding equipment according to claim 5, characterized in that: The head pipe fixing assembly (21) comprises a mounting seat (211), the mounting seat (211) is placed on the surface of a workbench (1), and a power component (212) is installed on the workbench (1), the output end of the power component (212) is hinged with a connecting shaft (213), the end of the connecting shaft (213) extends into the mounting seat (211) and is fixedly mounted with a butt plate (214), the head pipe (101) is placed in the mounting seat (211), and the two ends of the head pipe (101) are respectively in contact with the inner wall of the mounting seat (211) and the butt plate (214).

7. The bicycle processing and welding equipment according to claim 6, characterized in that: The side tube fixing assembly (22) comprises a fixing plate (221), a sliding groove (222) is provided on the fixing plate (221), a sliding block (223) is slidably arranged in the sliding groove (222), a rubber pad (224) is fixedly arranged on the upper side of the sliding block (223), the side tube (102) is placed on the sliding block (223) and is fixed by the rubber pad (224), and an elastic member (225) is arranged on one side of the sliding block (223).

8. The bicycle processing and welding equipment according to claim 7, characterized in that: The turning mechanism (3) comprises a rotating shaft (31), the connecting seat (41) is fixedly connected to one end of the rotating shaft (31), the rotating shaft (31) is rotatably arranged on the workbench (1), and the other end of the rotating shaft (31) is fixedly connected to the mounting seat (211), and a second power component (32) is mounted on the workbench (1), a driving gear (33) is mounted on the output end of the second power component (32), a driven gear (34) is fixedly sleeved on the rotating shaft (31), the driving gear (33) is meshed with the driven gear (34), and the round head (45) and the end of the rotating shaft (31) are collinear in the horizontal direction.

9. The bicycle processing and welding equipment according to claim 8, characterized in that: The welding mechanism (5) comprises a linear drive component 1 (51) and a linear drive component 2 (52), wherein the linear drive component 1 (51) and the linear drive component 2 (52) constitute a dual-axis moving mechanism. The welding mechanism (5) further comprises a linear drive component 4 (54), wherein the linear drive component 4 (54) comprises a support plate (541), a power component 5 (542) is fixedly mounted on the workbench (1), an output end of the power component 5 (542) is fixedly connected to the support plate (541), and the linear drive component 1 (51) is mounted on the support plate (541).

10. A welding process for a bicycle processing and welding device as claimed in claim 9, characterized in that: The following steps are involved: Step 1: fix the head pipe (101), the cross pipe (1021) and the oblique pipe (1022) by means of the head pipe fixing assembly (21) and the side pipe fixing assembly (22), and make the ends of the cross pipe (1021) and the oblique pipe (1022) fit with the side surface of the head pipe (101); Step 2: The pressure-applying mechanism (4) applies pressure to the cross beam tube (1021) and the oblique tube (1022) through the pressure-applying plate (42), so that the joints between the cross beam tube (1021) and the oblique tube (1022) and the head tube (101) are always kept in close contact; Step 3: The welding mechanism (5) drives the welding gun (55) to weld the horizontally placed cross beam tube (1021) and the oblique tube (1022) to the upper weld of the head tube (101). After the welding is completed, the flipping mechanism (3) drives the cross beam tube (1021) and the oblique tube (1022) as well as the head tube (101) to flip; Step 4: Finally, the welding mechanism (5) drives the welding gun (55) to weld the cross beam tube (1021) and the inclined tube (1022) to the upper lower weld of the head tube (101) after turning over.

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