Bicycle machining and welding equipment and process

Abstract

The application discloses a bicycle processing welding equipment and process, and particularly relates to the field of bicycle welding. The welding equipment comprises a workbench, and the workbench is provided with a fixing mechanism and a pressing mechanism. The fixing mechanism is used for fixing a head tube and a side tube, and making the end of the side tube adhere to the side surface of the head tube. The pressing mechanism comprises a linearly movable pressing plate, which is used for applying pressure to the side tube after the side tube is fixed. The pressure is applied from the end of the side tube to the side surface of the head tube. The application applies pressure to the cross beam tube and the inclined tube, which is perpendicular to the side surface of the head tube, through the pressing mechanism, so that the joint of the cross beam tube and the inclined tube and the head tube can always be kept in close contact, and the problem that the joint of the cross beam tube and the inclined tube and the head tube is deformed due to heat during welding, the connection of the cross beam tube and the inclined tube and the head tube is separated, and the welding quality is affected is avoided.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of bicycle welding, more particularly, the present application relates to a bicycle machining welding equipment and process. BACKGROUND

[0002] In the process of bicycle production and manufacturing, the bicycle frame is the weight bearing of the whole vehicle and various parts, and it is a very critical step in the manufacturing process of the bicycle frame, which connects various pipe fittings together to form a strong and durable frame, ensures the overall structural strength and rigidity of the bicycle, and the current structure of the bicycle frame is mainly formed by welding.

[0003] In the bicycle frame, the head tube, the beam tube, the inclined tube and the vertical tube are mainly included, the head tube is used for connecting the front fork and fixing the handlebar, the beam tube is horizontally or slightly inclinedly connected to the head tube, mainly used to increase the overall rigidity, and the inclined tube is one of the parts that bear the maximum stress in the frame, therefore, the welding between the beam tube and the inclined tube and the head tube is particularly important when the parts are welded.

[0004] In the prior art, the welding of the bicycle frame is usually to fix the frame pipe fittings on the workbench, first weld the upward side of the pipe fitting connection, and then turn over the pipe fitting after welding to weld the other side, therefore, in order to improve the welding efficiency, the beam tube, the inclined tube and the head tube are fixed together on the workbench, and the ends of the beam tube and the inclined tube are respectively close to the side of the head tube, so that the welding and fixing between the beam tube and the inclined tube and the head tube can be completed at the same time, but in order to form a relatively 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 in operation, the distance between the welding ends of the beam tube and the inclined tube is usually set to be close, and in addition, the magnesium alloy material bicycle frame is prone to thermal expansion deformation at the welding position of the beam tube and the inclined tube and the head tube during welding due to the high thermal conductivity and low melting point of magnesium alloy, which affects the welding quality. SUMMARY

[0005] The present application provides a bicycle machining welding equipment and process, which solves the problem that the distance between the welding ends of the beam tube and the inclined tube is set to be close, and the magnesium alloy material bicycle frame is prone to thermal expansion deformation at the welding position of the beam tube and the inclined tube and the head tube during welding due to the high thermal conductivity and low melting point of magnesium alloy, which affects the welding quality.

[0006] To achieve the above object, the present application provides the following technical scheme: a bicycle processing welding equipment for welding and fixing a head tube and a side tube, the side tube comprising a cross beam tube and an inclined tube, comprising: a workbench, the workbench being provided with:

[0007] A fixing mechanism for fixing the head tube and the side tube and making the end of the side tube fit the side surface of the head tube;

[0008] A pressing mechanism comprising a linearly movable pressing plate, the pressing 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 to the side surface of the head tube and being perpendicular to the side surface of the side tube;

[0009] A welding mechanism for welding and fixing the end of the side tube and the side surface of the head tube;

[0010] A turnover mechanism for turning over the head tube and the side tube.

[0011] In a preferred embodiment, the pressing mechanism further comprises a connecting seat, the pressing plate being slidingly arranged in the connecting seat, one end of the pressing plate being provided with an elastic member two, the workbench being fixedly provided with a power component three, the output end of the power component three being provided with a round head, the front side of the pressing plate being provided with an inclined slot, the round head being in movable contact with the inner wall of the inclined slot.

[0012] In a preferred embodiment, the welding mechanism comprises a linear driving assembly three, the linear driving assembly three comprising a support seat, the support seat being provided with a power component four, the output end of the power component four being provided with a sliding seat, the sliding seat being further provided with a guide mechanism, the guide mechanism comprising a sliding block, the sliding block being transversely slidably arranged on the sliding seat, a top seat being vertically slidably arranged on the sliding block, the end of the top seat being provided with a welding gun, the bottom of the top seat being fixedly provided with a vertical shaft, the bottom end of the vertical shaft being provided with a round ball, the side of the support seat being provided with a guide seat, the guide seat being provided with a track groove, the round ball being slidingly arranged in the track groove.

[0013] In a preferred embodiment, the guide seat is further provided with a guide groove, the guide groove being in communication with the track groove, and the guide groove being located in the middle of the track groove.

[0014] In a preferred embodiment, the fixing mechanism comprises a head tube fixing assembly and a side tube fixing assembly, the head tube fixing assembly and the side tube fixing assembly being respectively used to fix the head tube and the side tube and make the end of the side tube fit the side surface of the head tube.

[0015] In a preferred implementation form, the head tube fixing assembly comprises a mounting seat arranged on the surface of the workbench, and the workbench is provided with the power component one, the output end of the power component one is hingedly provided with a connecting shaft, the end of the connecting shaft extends into the mounting seat, and a stop plate is fixedly arranged on the end of the connecting shaft, and the head tube is arranged in the mounting seat, and the two ends of the head tube abut against the inner wall of the mounting seat and the stop plate respectively.

[0016] In a preferred implementation form, the side tube fixing assembly comprises a fixing plate, a sliding groove is arranged on the fixing plate, a sliding block is slidingly arranged in the sliding groove, a rubber pad is fixedly arranged on the sliding block, the side tube is arranged on the sliding block and fixed by the rubber pad, and one side of the sliding block is provided with an elastic element one.

[0017] In a preferred implementation form, the turnover mechanism comprises a rotating shaft, a connecting seat is fixedly connected to one end of the rotating shaft, the rotating shaft is rotationally arranged on the workbench, the other end of the rotating shaft is fixedly connected to the mounting seat, the workbench is provided with the power component two, the output end of the power component two is provided with a driving gear, a driven gear is fixedly arranged on the rotating shaft, the driving gear is engaged with the driven gear, and the circular head and the end of the rotating shaft are collinear in the horizontal direction.

[0018] In a preferred implementation form, the welding mechanism comprises the linear driving assembly one and the linear driving assembly two, the linear driving assembly one and the linear driving assembly two constitute a double-shaft moving mechanism, the welding mechanism further comprises a linear driving assembly four, the linear driving assembly four comprises a support plate, the workbench is fixedly provided with a power component five, the output end of the power component five is fixedly connected to the support plate, and the linear driving assembly one is arranged on the support plate.

[0019] A welding process of a bicycle machining and welding equipment, comprising the following steps:

[0020] Step one, the head tube, the cross beam tube and the inclined tube are fixed by the head tube fixing assembly and the side tube fixing assembly, and the ends of the cross beam tube and the inclined tube are attached to the side surface of the head tube;

[0021] Step two, the pressing mechanism applies pressure to the cross beam tube and the inclined tube through the pressing plate, so that the cross beam tube and the inclined tube are always kept in close contact with the joint of the head tube;

[0022] Step three, the welding mechanism drives the welding gun to weld the upper welds of the horizontally placed cross beam tube and the inclined tube and the head tube, and after the welding is completed, the turnover mechanism drives the cross beam tube, the inclined tube and the head tube to turn over;

[0023] Step four, finally, the welding mechanism drives the welding gun to weld the lower welds of the cross beam tube and the inclined tube and the head tube after the head tube is turned over.

[0024] The beneficial effects of the present application are as follows:

[0025] The application applies pressure to the head pipe, the beam pipe and the inclined pipe by the pressure applying mechanism, so that the beam pipe and the inclined pipe can always be kept close to the head pipe, and the problem that the beam pipe and the inclined pipe are separated from the head pipe due to the heat generated during welding, thereby affecting the welding quality, is avoided. BRIEF DESCRIPTION OF DRAWINGS

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

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

[0028] Figure 3 It is a schematic diagram of the three-dimensional structure of the fixing mechanism of the application.

[0029] Figure 4 It is a schematic diagram of the three-dimensional structure of the fixing mechanism of the application. Figure 1 It is an enlarged view of part A of the application.

[0030] Figure 5 It is a schematic diagram of the top view and sectional structure of the pressure applying mechanism of the application.

[0031] Figure 6 It is a schematic diagram of the three-dimensional structure of the welding mechanism of the application.

[0032] Figure 7 It is a schematic diagram of the three-dimensional structure of the guiding mechanism of the application.

[0033] Figure 8 It is a schematic diagram of the three-dimensional structure of the guiding seat of the application.

[0034] Figure 9 It is a schematic diagram of the three-dimensional structure of the head pipe, the beam pipe and the inclined pipe of the application.

[0035] Figure 10 It is a process flow chart of the application.

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

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

[0038] It is necessary to point out here that the following detailed description is only used to further illustrate the application and cannot be understood as limiting the protection scope of the application, and the skilled in the art can make some non-essential improvements and adjustments to the application according to the above application content.

[0039] Referring to the drawings Figures 1 to 6 A bicycle machining and welding device for welding and fixing a head tube 101 and a side tube 102, the side tube 102 including a cross beam tube 1021 and an inclined tube 1022, comprising: a workbench 1, the workbench 1 being provided with:

[0040] A fixing mechanism 2, the fixing mechanism 2 being used for fixing the head tube 101 and the side tube 102 and making the end of the side tube 102 adhere to the side of the head tube 101;

[0041] A pressing mechanism 4, the pressing mechanism 4 including a linearly movable pressing plate 42, the pressing plate 42 being used for applying 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 to the side of the head tube 101 and being perpendicular to the side of the side tube 102;

[0042] A welding mechanism 5, the welding mechanism 5 being used for welding and fixing the end of the side tube 102 and the side of the head tube 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 tube 101 and the side tube 102, and the side tube 102 includes a cross tube 1021 and an oblique tube 1022. It is necessary to fit the ends of the cross tube 1021 and the oblique tube 1022 to the side of the head tube 101 to ensure that the cross tube 1021 and the oblique tube 1022 are in close contact with the head tube 101, and to avoid displacement at the joint between the ends of the cross tube 1021 and the oblique tube 1022 and the side of the head tube 101, which may 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. 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 a stable connection at the joint 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 crossbeam tube 1021, the oblique tube 1022 and the head tube 101 are first fixed by the fixing mechanism 2, and the ends of the crossbeam tube 1021 and the oblique tube 1022 are fitted with the side surfaces of the head tube 101, and then the pressure plate 42 is driven to move linearly to apply pressure to the crossbeam tube 1021 and the oblique tube 1022, so that the joints between the crossbeam tube 1021 and the oblique tube 1022 and the head tube 101 are always kept in close contact, and then the welding mechanism 5 welds the joints between the crossbeam tube 1021, the oblique tube 1022 and the head tube 101, as shown in FIG. Figure 1 As shown, since the crossbeam tube 1021, the oblique tube 1022 and the head tube 101 are in a flat state when they are fixed, the crossbeam tube 1021, the oblique tube 1022 and the head tube 101 are first welded and fixed at the joints facing upwards by the welding mechanism 5, and then the crossbeam tube 1021, the oblique tube 1022 and the head tube 101 are turned over by the flipping mechanism 3, and then the crossbeam tube 1021, the oblique tube 1022 and the head tube 101 are welded at the other joints. During the welding process, the pressure-applying mechanism 4 applies pressure to the crossbeam tube 1021 and the oblique tube 1022, so that the joints between the crossbeam tube 1021 and the oblique tube 1022 and the head tube 101 can always remain in close contact, thereby avoiding the problem that the joints between the crossbeam 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 crossbeam tube 1021 and the oblique tube 1022 and the head tube 101, thereby affecting the welding quality.

[0046] Further, refer to the instructions attached Figure 3The fixing mechanism 2 comprises a head pipe fixing assembly 21 and a side pipe fixing assembly 22, which are respectively used for fixing the head pipe 101 and the side pipe 102 and making the end of the side pipe 102 adhere to the side of the head pipe 101.

[0047] Further, referring to the drawings Figure 3 The head pipe fixing assembly 21 comprises a mounting seat 211 arranged on the surface of the workbench 1, and a power component one 212 is arranged on the workbench 1, the output end of the power component one 212 is hingedly connected with a connecting shaft 213, the end of the connecting shaft 213 extends into the mounting seat 211 and is fixedly arranged with a stop plate 214, the head pipe 101 is arranged in the mounting seat 211, and the two ends of the head pipe 101 respectively abut against the inner wall of the mounting seat 211 and the stop plate 214.

[0048] It should be noted that the power component one 212 is a cylinder, the head pipe 101 is placed in the mounting seat 211, then the stop plate 214 is driven by the cylinder to move towards the head pipe 101, so that the stop plate 214 abuts against the head pipe 101, thereby fixing the head pipe 101.

[0049] It should be further noted that, since the output end of the cylinder is hingedly connected with the connecting shaft 213, when the beam pipe 1021, the inclined pipe 1022 and the head pipe 101 are flipped after preliminary welding, the cylinder can be kept stationary through the hinged connection between the output end of the power component one 212 and the connecting shaft 213, thereby avoiding the problem that the cylinder moves synchronously with the flipping and affects the normal use of the cylinder.

[0050] Further, referring to the drawings Figure 3 The side pipe fixing assembly 22 comprises a fixing plate 221, a sliding groove 222 is arranged 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 sliding block 223, the side pipe 102 is arranged on the sliding block 223 and is fixed through the rubber pad 224, and an elastic member one 225 is arranged on one side of the sliding block 223.

[0051] It should be noted that the elastic member 225 is a spring, when fixing the side pipe 102, first pull the sliding block 223, make the spring stretch, then put the side pipe 102 in the sliding block 223, fix the side pipe 102 through the rubber pad 224, and make the end of the side pipe 102 adhere to the sliding block 223, then release the sliding block 223, make it reset through the elastic deformation of the spring, drive the side pipe 102 to move to the direction of the head pipe 101, make the end of the side pipe 102 adhere to the side of the head pipe 101, in addition, the fixed plate 221 is also provided with an opening 2211, when the cross beam pipe 1021 and the inclined pipe 1022 are turned over, the opening 2211 can make the joint between the cross beam pipe 1021, the inclined pipe 1022 and the head pipe 101 leak, so as not to hinder the welding operation.

[0052] It should be further pointed out that the side pipe 102 includes the cross beam pipe 1021 and the inclined pipe 1022, and the cross beam pipe 1021 and the inclined pipe 1022 can be fixed through the above-mentioned side pipe fixing assembly 22, and the end thereof can adhere to the head pipe 101.

[0053] Further, referring to the drawings Figure 4 The turning mechanism 3 includes a rotating shaft 31, the rotating shaft 31 is rotatably arranged on the workbench 1, one end of the rotating shaft 31 is fixedly connected with the mounting seat 211, and a power component two 32 is installed on the workbench 1, the output end of the power component two 32 is installed with a driving gear 33, and a driven gear 34 is fixedly sleeved on the rotating shaft 31, and the driving gear 33 is engaged with the driven gear 34.

[0054] It should be noted that the power component two 32 is a motor, which drives the driving gear 33 to rotate, and drives the rotating shaft 31 to rotate through the engagement transmission of the driving gear 33 and the driven gear 34, because the end of the rotating shaft 31 is fixedly connected with the mounting seat 211, and the side pipe fixing assembly 22 is arranged on the fixed plate 221 fixedly arranged between the mounting seat 211, therefore, when the motor is driven, the cross beam pipe 1021, the inclined pipe 1022 and the head pipe 101 can be turned over at the same time.

[0055] In the above technical scheme, the pressure plate 42 capable of moving linearly applies pressure to the cross beam pipe 1021 and the inclined pipe 1022, so that the end portions of the cross beam pipe 1021 and the inclined pipe 1022 can always be in close contact with the side surface of the head pipe 101, but after the cross beam pipe 1021, the inclined pipe 1022 and the head pipe 101 are preliminarily welded, the cross beam pipe 1021, the inclined pipe 1022 and the head pipe 101 need to be turned over to facilitate welding of another part of the joint of the cross beam pipe 1021, the inclined pipe 1022 and the head pipe 101, if the movement of the pressure plate 42 is realized by the hydraulic cylinder, the hydraulic cylinder also needs to be turned over with the turning over of the cross beam pipe 1021, the inclined pipe 1022 and the head pipe 101, but in the use process, 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 pipeline will be fatigued and worn in the continuous bending and twisting, increasing the risk of leakage or damage, therefore, the hydraulic cylinder needs to be kept in a fixed state, for this purpose, the present application provides a specific structure of the pressure applying mechanism 4, so that the pressure plate 42 can move with the turning over of the cross beam pipe 1021, the inclined pipe 1022 and the head pipe 101 under the premise of keeping the hydraulic cylinder in a fixed state, and the end portions of the cross beam pipe 1021 and the inclined pipe 1022 can always be in close contact with the side surface of the head pipe 101.

[0056] Specifically, referring to the description attached Figure 5 The pressure applying mechanism 4 further comprises a connecting seat 41 fixedly connected to the other end of the rotating shaft 31, the pressure plate 42 is slidingly arranged in the connecting seat 41, one end of the pressure plate 42 is provided with an elastic member two 43, a power component three 44 is fixedly installed on the workbench 1, a round head 45 is installed at the output end of the power component three 44, a slant slot 421 is formed in the front side of the pressure plate 42, the round head 45 is in movable contact with the inner wall of the slant slot 421, and the round head 45 and the end portion of the rotating shaft 31 are collinear in the horizontal direction.

[0057] It should be noted that the power component three 44 is a hydraulic cylinder, the elastic component two 43 is a spring, the round head 45 is driven by the hydraulic cylinder to move towards the connecting seat 41, so that the round head 45 extends into the connecting seat 41, and the round head 45 is in contact with the inclined groove 421 on the pressing plate 42, and the pressing plate 42 is pushed to move towards the head pipe 101, so that the pressing plate 42 applies a force perpendicular to the head pipe 101 to the cross beam pipe 1021 and the inclined pipe 1022, to ensure that the ends of the cross beam pipe 1021 and the inclined pipe 1022 can always be in close contact with the side of the head pipe 101, and the spring can be compressed, when the cross beam pipe 1021, the inclined pipe 1022 and the head pipe 101 are driven to overturn by the overturning mechanism 3, since the rotating shaft 31 is fixed with the connecting seat 41, the connecting seat 41 drives the pressing plate 42 to move synchronously, and since the round head 45 is collinear with the rotating shaft 31 in the horizontal direction, the hydraulic cylinder and the round head 45 maintain the fixed position, so that the pressing plate 42 performs the revolution motion with the round head 45 as the center, and the pressing plate 42 can move with the overturning of the cross beam pipe 1021, the inclined pipe 1022 and the head pipe 101 under the premise of maintaining the state, and the ends of the cross beam pipe 1021 and the inclined pipe 1022 can always be in close contact with the side of the head pipe 101, avoiding the risk of leakage or damage of the hydraulic cylinder pipeline caused by synchronous movement of the hydraulic cylinder.

[0058] Further, referring to the description of the drawings Figure 6 The welding mechanism 5 includes a linear drive assembly one 51, a linear drive assembly two 52 and a welding gun 55, and the linear drive assembly one 51 and the linear drive assembly two 52 constitute a double-axis moving mechanism.

[0059] It should be noted that the linear drive assembly one 51 and the linear drive assembly two 52 can adopt a screw nut device or a linear motor and the like for driving linear motion, and through linear driving, the position adjustment of the welding gun 55 can be realized, to ensure that the output end of the welding gun 55 can realize precise welding during welding.

[0060] In the above technical solution, for example Figure 9As shown, the end of the cross beam pipe 1021 and the inclined pipe 1022 and the joint of the side of the head pipe 101 is a welding track, because the cross beam pipe 1021 is horizontally arranged, the inclined pipe 1022 is inclined, and the head pipe 101, the cross beam pipe 1021 and the inclined pipe 1022 are all pipes, so the welding track of the joint is relatively complex, at present, although the welding gun 55 can be driven to move along the welding track by programming the mechanical arm to perform the welding operation, but because the price and maintenance cost of the mechanical arm is high, it is not suitable for small engineering use, therefore, the application also provides a linear driving assembly three 53 and a guide mechanism 6 for guiding the welding gun 55, so that the welding gun 55 can realize complex welding track movement, without programming operation through the mechanical arm, greatly reducing the production cost.

[0061] Specifically, referring to the drawings Figures 6 to 8 The welding mechanism 5 further comprises a linear driving assembly three 53, the linear driving assembly three 53 comprises a support seat 531, a power component four 532 is installed on the support seat 531, a sliding seat 533 is installed on the output end of the power component four 532, and a guide mechanism 6 is further arranged on the sliding seat 533, the guide mechanism 6 is used for guiding the welding gun 55 to move along the welding track, the guide mechanism 6 comprises a sliding block 61, the sliding block 61 is transversely slid on the sliding seat 533, a top seat 62 is vertically slid on the sliding block 61, a vertical shaft 63 is fixedly arranged on the bottom of the top seat 62, a spherical 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 formed in the guide seat 64, and the spherical ball 631 is slid in the track groove 641.

[0062] It should be noted that the power component four 532 can be a cylinder, and during the process of driving the welding gun 55 to move linearly, the cylinder can drive the vertical shaft 63 to move synchronously through the top seat 62, because the spherical ball 631 at the end of the vertical shaft 63 is slid in the track groove 641, and the track groove 641 is the same as the track of the joint of the end of the cross beam pipe 1021 and the inclined pipe 1022 and the side of the head pipe 101, so that the spherical ball 631 can be driven to move in the track groove 641, and because the sliding block 61 is transversely slid on the sliding seat 533, and the top seat 62 is vertically slid on the sliding block 61, and the welding gun 55 is fixedly arranged on the top seat 62, so the welding gun 55 can move up and down and left and right under the cooperation of the sliding seat 533, the sliding block 61 and the top seat 62, and at this time, because the vertical shaft 63 is fixedly connected with the top seat 62, and the spherical ball 631 at the end of the vertical shaft 63 is slid in the track groove 641, so that the welding gun 55 can also move along the track of the track groove 641, thereby realizing the welding operation of the welding gun 55 moving along the track of the joint of the end of the cross beam pipe 1021 and the inclined pipe 1022 and the side of the head pipe 101.

[0063] Further, referring to the drawingsFigure 6 The welding mechanism 5 further comprises a linear driving assembly four 54, which comprises a support plate 541, and a power component five 542 is fixedly installed on the workbench 1, the output end of the power component five 542 is fixedly connected with the support plate 541, and the linear driving assembly one 51 is installed on the support plate 541.

[0064] It should be noted that the two trajectory grooves 641 are mirror images, and after the end portions of the beam pipe 1021 and the inclined pipe 1022 are welded to the seam of the upper side of the head pipe 101, the beam pipe 1021, the inclined pipe 1022 and the head pipe 101 are flipped, and after the flipping is completed, the welding gun 55 is driven by the support plate 541 to retreat to the initial position, and then the welding gun 55 is driven by the linear driving assembly three 53 and the guide mechanism 6 to move, so as to weld the other part of the seam.

[0065] In the above technical solution, although the distance between the end portions of the beam pipe 1021 and the inclined pipe 1022 is relatively close, there is still a certain distance, so in the movement process of the welding gun 55 in this distance, in order to avoid damage to the side of the head pipe 101 caused by the welding gun 55, the welding gun 55 can be closed and re-opened in the movement process of the welding gun 55 in this distance to avoid the problem, but repeated opening and closing will make the welding area experience thermal cycle multiple times, causing changes in the microstructure of the heat-affected zone, resulting in deformation of the side of the head pipe 101. Therefore, in this distance, the beam pipe 1021, the inclined pipe 1022 and the head pipe 101 can be moved, or the welding gun 55 can be moved away from the head pipe 101 to solve the problem, but if the beam pipe 1021, the inclined pipe 1022 and the head pipe 101 are moved, the beam pipe 1021, the inclined pipe 1022 and the head pipe 101 need to be fixed and flipped, and a series of operations need to be driven by the driving component, and at the same time, the driving component needs to be ensured not to move with these operations. It is easy to interfere with the movement of the beam pipe 1021, the inclined pipe 1022 and the head pipe 101, so in the present application, the welding gun 55 is moved away from the head pipe 101 in this distance.

[0066] Specifically, referring to the drawings Figure 8 The guide seat 64 is further provided with a guide groove 642, the guide groove 642 is in communication with the trajectory groove 641, and the guide groove 642 is located in the middle of the trajectory groove 641.

[0067] It should be noted that by opening the guide groove 642 connected to the track groove 641 on the guide seat 64, the welding gun 55 can move away from the head tube 101 during the movement of the track groove 641, so as to avoid damage to the side of the head tube 101 caused by the welding gun 55.

[0068] The accompanying drawings are referred to in order to better understand the present application. Figure 10 A welding process of a bicycle machining and welding equipment, comprising the following steps:

[0069] Step one, through the head tube fixing assembly 21 and the side tube fixing assembly 22, the head tube 101, the cross beam tube 1021 and the inclined tube 1022 are fixed, and the end of the cross beam tube 1021 and the inclined tube 1022 is attached to the side of the head tube 101.

[0070] Step two, the pressing mechanism 4 applies pressure to the cross beam tube 1021 and the inclined tube 1022 through the pressing plate 42, so that the cross beam tube 1021 and the inclined tube 1022 are always in close contact with the joint of the head tube 101;

[0071] Step three, the welding mechanism 5 drives the welding gun 55 to weld the horizontally placed cross beam tube 1021 and inclined tube 1022 with the upper weld of the head tube 101, and after welding, the overturning mechanism 3 drives the cross beam tube 1021 and the inclined tube 1022 and the head tube 101 to overturn;

[0072] Step four, finally, the welding mechanism 5 drives the welding gun 55 to weld the cross beam tube 1021 and the inclined tube 1022 with the lower weld of the head tube 101 after overturning.

[0073] The above-described embodiments only express several embodiments of the present application, and the description is more specific and detailed, but it should not be understood as limiting the scope of the present application. It should be noted that for ordinary skilled in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which are within the scope of protection of the present application.

Claims

1. A bicycle processing and welding device 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 provided: A fixing mechanism (2), the fixing mechanism (2) being used to fix the head tube (101) and the side tube (102), and to make the end of the side tube (102) fit with the side surface of the head tube (101); a pressure-applying mechanism (4), the pressure-applying mechanism (4) comprising a linearly movable pressure plate (42), 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), the turning mechanism (3) being used to turn the head tube (101) and the side tube (102); The pressure mechanism (4) further includes a connecting seat (41), the pressure plate (42) is slidably arranged in the connecting seat (41), and an elastic member 2 (43) is provided 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), and an inclined groove (421) is provided on the front side of the pressure plate (42), and the round head (45) is in movable contact with the inner wall of the inclined groove (421); The welding mechanism (5) includes a linear drive component three (53), 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), and a guide mechanism (6) is also provided on the slide seat (533), the guide mechanism (6) includes a sliding block (61), and the sliding block (61) slides laterally on the slide seat (533). A top seat (62) is vertically slidably provided 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 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 provided on the guide seat (64), and the ball (631) is slidably provided in the track groove (641); The guide seat (64) is further 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); 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); The head pipe fixing assembly (21) includes a mounting seat (211), the mounting seat (211) 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), 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 in contact with the inner wall of the mounting seat (211) and the support plate (214); The side tube fixing assembly (22) includes a fixing plate (221), a sliding groove (222) is provided on the fixing plate (221), a slider (223) is slidably provided in the sliding groove (222), a rubber pad (224) is fixedly provided on the slider (223), the side tube (102) is placed on the slider (223) and is fixed by the rubber pad (224), and an elastic member (225) is provided on one side of the slider (223).

2. The bicycle processing and welding equipment according to claim 1, characterized in that: The turning mechanism (3) includes 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 installed on the workbench (1), a driving gear (33) is installed at 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.

3. The bicycle processing and welding equipment according to claim 2, characterized in that: The welding mechanism (5) includes 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 biaxial moving mechanism. The welding mechanism (5) further includes a linear drive component 4 (54), wherein the linear drive component 4 (54) includes a support plate (541), and a power component 5 (542) is fixedly mounted on the workbench (1). The 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).

4. A welding process for a bicycle processing and welding device as claimed in claim 3, characterized in that: The following steps are involved: Step 1: Fix the head tube (101), the cross tube (1021) and the oblique tube (1022) by using the head tube fixing assembly (21) and the side tube fixing assembly (22), and make the ends of the cross tube (1021) and the oblique tube (1022) fit with the side surface of the head tube (101); Step 2: The pressure-applying mechanism (4) applies pressure to the crossbeam tube (1021) and the oblique tube (1022) via the pressure-applying plate (42), so that the joints between the crossbeam tube (1021) and the oblique tube (1022) and the head tube (101) always remain in close contact; Step 3: The welding mechanism (5) drives the welding gun (55) to weld the horizontal beam tube (1021) and the oblique tube (1022) to the upper weld seam of the head tube (101). After the welding is completed, the turning mechanism (3) drives the beam tube (1021), the oblique tube (1022) and the head tube (101) to turn over; Step 4: Finally, the welding mechanism (5) drives the welding gun (55) to weld the crossbeam tube (1021) and the oblique tube (1022) to the head tube (101) with the lower weld seam facing upward after the crossbeam tube (1021) and the oblique tube (1022) are turned over.

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