A kind of automatic welding equipment for automobile body

Abstract

The invention discloses an automatic welding device for automobile bodies, relates to the technical field of body welding, and aims to solve the technical problem of low welding efficiency of positioning pins of non-load-bearing body beams. The device comprises a welding platform. The multifunctional body clamping mechanism of the invention can adjust the clamping member to a rectangular body tube clamping state or a circular body tube clamping state through an adjusting member, so as to adapt to the common shape of the non-load-bearing body beams at this stage, enhance the stability of the moving process and prevent shaking during the welding process. The device also provides a clamping and grinding integrated mechanism on the positioning and calibration mechanism, flexibly calibrates the specific welding position of the positioning pin through the positioning and calibration mechanism, and then keeps the positioning pin stable during welding through a fixing component. The device also processes the welds and weld nodules generated after welding through a grinding component, so as to solve the problems of frequent switching, complicated operation, unstable welding quality, etc. in the existing welding process, and provide strong support for the manufacture of non-load-bearing bodies.

Description

Technical Field

[0001] The present invention relates to the technical field of vehicle body welding, and more specifically to an automatic welding device for an automobile body. Background Art

[0002] With the rapid development of the automobile industry, the welding technology of automobile bodies is also constantly improving, especially for the welding of non-load-bearing bodies, the complexity and precision requirements are increasing. The non-load-bearing body, with its independent frame structure, carries and connects various components including the engine, suspension system, body, etc., and the locating pins are the key elements to ensure the precise alignment and positioning of these components. The welding quality and efficiency directly affect the manufacturing quality and production cycle of the whole vehicle.

[0003] However, in the current automobile body welding process, there are still many challenges in welding the locating pins of the non-load-bearing body beam. First, due to the particularity of the non-load-bearing body structure, the installation position of the locating pins is often scattered and complex, requiring a high-precision welding process to ensure the welding quality. However, existing welding equipment often lacks special design and optimization for such complex structures, resulting in low welding efficiency and difficulty in meeting the needs of efficient production. Secondly, during the welding process, due to the differences in different vehicle models and body structures, it is necessary to frequently switch welding fixtures, welding equipment, and subsequent grinding equipment, which not only increases the complexity and difficulty of the operation, but also greatly prolongs the welding cycle and reduces production efficiency. At the same time, frequent equipment switching can easily lead to fluctuations and instability in welding quality, posing a potential threat to the manufacturing quality of the entire vehicle.

[0004] In summary, in view of the low efficiency of welding locating pins of non-load-bearing body beams, it is particularly important to develop an automated welding equipment with a high degree of integration specifically for such welding needs; in view of this, we propose an automated welding equipment for automobile bodies. Summary of the invention

[0005] The object of the present invention is to provide an automatic welding device for automobile bodies, so as to solve the technical problem of low welding efficiency of positioning pins of non-load-bearing body beams.

[0006] In order to solve the above technical problems, the present invention provides the following technical solutions: an automatic welding device for automobile bodies, comprising a welding platform, a truss is provided on the welding platform, a lifting mechanism is provided on the truss, a counter-moving mechanism is provided at the bottom of the lifting mechanism, a multifunctional body clamping mechanism is provided on the counter-moving mechanism, a slide rail system is provided at one end of the welding platform away from the lifting mechanism, a welding mechanism is slidably provided at one end of the slide rail system close to the lifting mechanism, a positioning and calibration mechanism is slidably provided at one end of the slide rail system away from the welding mechanism, and a clamping and grinding integrated mechanism is provided on the positioning and calibration mechanism;

[0007] The multifunctional vehicle body clamping mechanism comprises a hanging part, an adjusting part and a clamping part, wherein the hanging part is symmetrically hung on the moving end of the opposite moving mechanism, the adjusting part is arranged at the outer bottom end of the hanging part, and the clamping part is arranged at the inner bottom end of the hanging part, and the clamping part is adjusted by the adjusting part to be in a rectangular vehicle body tube clamping state and a circular vehicle body tube clamping state;

[0008] The hanging member includes a hanging plate and a movable groove, the hanging plate is symmetrically hung on the moving end of the opposite moving mechanism, a plurality of movable grooves are opened at the bottom end of the hanging plate, the clamping member passes through the movable groove and is connected to the adjusting member, and the clamping member is movably arranged on the movable groove;

[0009] The clamping and grinding integrated mechanism includes a power component, a grinding component, a fixed component and a clutch component. The power component is arranged on the positioning and calibration mechanism, the grinding component is rotatably sleeved on one end of the power component, the fixed component is sleeved on the other end of the power component, and the clutch component is fixedly sleeved on the power component at a position between the grinding component and the fixed component.

[0010] Preferably, the adjusting member includes a mounting block, a crank, a worm, a gear A, a worm wheel and a tooth plate, the mounting block is arranged at the bottom end of the hanging plate, the crank is rotatably inserted on the mounting block, the worm is arranged at the end of the crank away from the mounting block, the gear A is rotatably arranged at a position between the two movable grooves, the worm wheel is fixedly connected to the outside of the gear A, the worm wheel is meshingly connected to the worm, one end of the tooth plate is connected to the clamping member, and the tooth plate is meshingly connected to the gear A.

[0011] Preferably, the clamping member includes a shell, an inclined groove, a rubber plate and a trapezoidal block, the shell is symmetrically and movably arranged on the movable groove, the inclined groove is opened on the outer walls on both sides of the shell, the rubber plate is movably arranged on the two inclined grooves, and a plurality of the trapezoidal blocks are arranged on the rubber plate.

[0012] Preferably, the positioning and calibration mechanism comprises a base, a driving assembly and a moving assembly, the base is slidably arranged on an end of the slide rail system away from the welding mechanism, the driving assembly is arranged on the base, and the moving assembly is slidably arranged on the base;

[0013] A plurality of guide rails are arranged transversely on the base, and the moving assembly is slidably arranged on the guide rails.

[0014] Preferably, the driving assembly includes a reduction motor, a belt, a screw, a movable plate and a limit groove, the reduction motor is arranged on the base, the screw is rotatably arranged on the base, the belt is wound around the output end of the reduction motor and one end of the screw, the top end of the movable plate is movably sleeved on the screw and adapted to the screw, the bottom end of the movable plate is slidably arranged on the base, some of the limit grooves are obliquely opened on the movable plate, and some of the limit grooves are cone-shaped as a whole.

[0015] Preferably, the moving assembly includes a slide plate, a limiting rod and a supporting frame, the slide plate is slidably arranged on the guide rail, the limiting rod is fixedly arranged on the top of the slide plate, the limiting rod is movably inserted in the limiting groove, the supporting frame is arranged at one end of the slide plate away from the guide rail, and the integrated clamping and grinding mechanism is arranged on the supporting frame.

[0016] Preferably, the power assembly includes a servo motor, gear B, gear C, a power shaft and a mating rail. The servo motor is arranged on the positioning and calibration mechanism, the gear B is sleeved on the output end of the servo motor, the gear C is rotatably arranged on the positioning and calibration mechanism at the bottom end of the servo motor, the gear B is meshed and connected to the gear C, the power shaft is fixed on the gear C, and the mating rail is arranged in a circular shape and at equal intervals in the middle of the power shaft.

[0017] Preferably, the grinding assembly includes a sleeve A, an inner tooth groove A, a conduction rod and a grinding disc. The sleeve A is rotatably sleeved on the power shaft at a position outside the mating rail. The inner tooth groove A is opened on the inner wall of the sleeve A. A plurality of the conduction rods are connected to the sleeve A. The grinding disc is connected to one end of the conduction rod away from the sleeve A.

[0018] Preferably, the fixing assembly includes a sleeve B, an inner tooth groove B, a fixed disk, a center rod, a rotating disk, a curved groove, a guide groove, an L-shaped rod and a splint, the sleeve B is rotatably arranged on the power shaft, the inner tooth groove B is opened on the inner wall of the sleeve B, the center rod is fixedly arranged on one end of the sleeve B, the fixed disk is rotatably arranged on the center rod, the rotating disk is fixedly sleeved on the center rod, the curved groove is opened on the rotating disk in a circular shape with equal intervals, the guide groove is opened on the fixed disk in a circular shape with equal intervals, one end of the L-shaped rod is movably arranged on the curved groove, the other end of the L-shaped rod is movably arranged on the guide groove, and the splint is connected to one end of the L-shaped rod away from the center rod.

[0019] Preferably, the clutch assembly includes a movable cylinder, an adjusting paddle, an external tooth groove and a fitting groove. The movable cylinder is slidably sleeved on the power shaft, the adjusting paddle is arranged on the outer wall of the movable cylinder, the external tooth groove is opened at both ends of the outer wall of the movable cylinder, and the fitting groove is opened on the inner wall of the movable cylinder in a circular shape with equal intervals, and the fitting groove is adapted to the fitting rail.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] 1. The present invention arranges a truss on a welding platform, arranges a lifting mechanism on the truss, arranges an opposite moving mechanism on the lifting mechanism, and utilizes the opposite moving mechanism to drive a multifunctional body clamping mechanism to clamp the body for transportation. The multifunctional body clamping mechanism of the present invention can adjust the clamping member into a rectangular body tube clamping state or a circular body tube clamping state through an adjusting member to adapt to the common shape of the non-load-bearing body beam at this stage, enhance the stability of the moving process and prevent shaking during the welding process. In addition, an integrated clamping and grinding mechanism is arranged on the positioning and calibration mechanism, and the specific welding position of the positioning pin is calibrated flexibly by the positioning and calibration mechanism through the variable pitch. The positioning pin is then kept stable during welding by the fixing component of the integrated clamping and grinding mechanism. The welds and weld nodules generated after welding are processed by the grinding component, thereby solving the problems of frequent switching, complicated operation, unstable welding quality, etc. in the existing welding process, and providing strong support for the manufacture of non-load-bearing bodies.

[0022] 2. In the present invention, the worm is driven to rotate by rotating the crank handle, the worm meshing drives the worm wheel to rotate, the worm wheel drives gear A to rotate, and the rotation of gear A drives the meshing toothed plates on both sides to achieve opposite movement. The present invention uses an adjustment method in which the worm drives the worm wheel to rotate, and the worm wheel drives the gear A to rotate. Since the worm and the worm wheel are self-locking, the toothed plate can be suspended at any height, thereby realizing flexible adjustment of the clamping part shape.

[0023] 3. In the present invention, the housing is driven to move in opposite directions by the adjusting member, the inclined groove of the housing squeezes the rubber sheet to produce deformation, and the rubber sheet drives the trapezoidal block to bend to form a circular shape, such as Fig. 9 and Fig.10 As shown, it is used to clamp the circular tubular beam of the non-load-bearing vehicle body. When the rubber plate and the trapezoidal block are in a straight line, it is used to clamp the rectangular tubular beam of the non-load-bearing vehicle body, so that the efficiency of the non-load-bearing vehicle body beam movement and transportation in the present invention is improved, while reducing the operation complexity and the frequency of fixture switching.

[0024] 4. In the present invention, the belt is driven to rotate by the reduction motor, the belt drives the screw to rotate, the screw drives the movable plate to move, the movable plate drives the limit slot to move, and the limit slot opened in an inclined shape pushes the limit rod to drive the slide plate and the load-bearing frame to move, so that the spacing between the clamping and grinding integrated mechanisms changes, so that the position and spacing of the locating pins can be flexibly adjusted according to the actual size and shape of different workpieces, so that it can be suitable for more types of non-load-bearing beams, and can also ensure the precise positioning of the beam during the welding process, which helps to reduce welding errors, improve welding quality, and ensure the smooth progress of subsequent assembly.

[0025] 5. Compared with the traditional welding method, the clamping and grinding mechanism in the present invention requires workers to manually replace the clamps, perform welding operations, and perform subsequent grinding work, which is labor-intensive and prone to errors. However, the present invention enables these heavy and repetitive tasks to be completed by machines, greatly reducing the labor intensity of workers. At the same time, due to the efficient operation and precise control of the equipment, material waste and defective products caused by human factors are reduced, further reducing production costs. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0027] Figure 2 It is a schematic diagram of the overall structure of the present invention from another perspective.

[0028] Figure 3 It is a schematic structural diagram of the truss, lifting mechanism, opposite movement mechanism and multifunctional vehicle body clamping mechanism of the present invention.

[0029] Figure 4 It is a schematic structural diagram of the opposing moving mechanism and the multifunctional vehicle body clamping mechanism of the present invention.

[0030] Figure 5 It is a partial cross-sectional structural schematic diagram of the multifunctional vehicle body clamping mechanism of the present invention.

[0031] Figure 6 It is a schematic diagram of the structure of the adjusting member and the clamping member of the present invention.

[0032] Figure 7 For the present invention Figure 6 A magnified view of the structure in Figure 2.

[0033] Figure 8 It is a schematic diagram of the structure of the clamping member of the present invention.

[0034] Fig. 9 The figure is a diagram showing the use state of the clamping piece of the present invention clamping a round tube vehicle body.

[0035] Fig.10 It is a schematic diagram of the rubber plate and trapezoidal block structure of the present invention.

[0036] Fig.11 It is a schematic diagram of the structure of the positioning and calibration mechanism of the present invention.

[0037] Fig.12 It is a schematic diagram of the structure of the clamping and grinding integrated mechanism of the present invention.

[0038] Fig.13 It is a schematic diagram of the power assembly structure of the present invention and an enlarged diagram of the structure at point B in this figure.

[0039] Fig.14 It is a schematic diagram of the structure of the power component and the grinding component of the present invention.

[0040] Fig.15 It is a schematic diagram of the cross-sectional structure of the power component and the fixed component of the present invention.

[0041] Fig.16 It is a schematic cross-sectional structural diagram of the clutch assembly of the present invention.

[0042] Fig.17 It is a schematic diagram of a partial cross-sectional structure of the fixing assembly of the present invention.

[0043] Fig.18 It is a schematic diagram of the use state of the present invention.

[0044] Description of the numbers in the figure:

[0045] 1. Welding platform; 2. Truss; 3. Lifting mechanism; 4. Opposite moving mechanism; 5. Multifunctional body clamping mechanism; 6. Slide rail system; 7. Welding mechanism; 8. Positioning and calibration mechanism; 9. Clamping and grinding integrated mechanism;

[0046] 501, lifting part; 502, adjusting part; 503, clamping part;

[0047] 801, base; 802, driving assembly; 803, moving assembly;

[0048] 901, power assembly; 902, grinding assembly; 903, fixing assembly; 904, clutch assembly;

[0049] 5011, hanging plate; 5012, movable slot;

[0050] 5021, mounting block; 5022, crank; 5023, worm; 5024, gear A; 5025, worm wheel; 5026, tooth plate;

[0051] 5031, housing; 5032, chute; 5033, rubber sheet; 5034, trapezoidal block;

[0052] 8011, guide rail;

[0053] 8021, reduction motor; 8022, belt; 8023, lead screw; 8024, moving plate; 8025, limit slot;

[0054] 8031, slide plate; 8032, limit rod; 8033, load-bearing frame;

[0055] 9011, servo motor; 9012, gear B; 9013, gear C; 9014, power shaft; 9015, matching rail;

[0056] 9021, sleeve A; 9022, inner tooth groove A; 9023, conduction rod; 9024, grinding disc;

[0057] 9031, sleeve B; 9032, inner tooth groove B; 9033, fixed plate; 9034, center rod; 9035, rotating plate; 9036, curved groove; 9037, guide groove; 9038, L-shaped rod; 9039, clamping plate;

[0058] 9041. movable cylinder; 9042. adjusting paddle; 9043. outer tooth groove; 9044. fitting groove. DETAILED DESCRIPTION

[0059] like Figures 1 to 18 As shown, the present invention relates to an automatic welding device for automobile bodies, comprising a welding platform 1, a truss 2 is arranged on the welding platform 1, a lifting mechanism 3 is arranged on the truss 2, a counter-moving mechanism 4 is arranged at the bottom of the lifting mechanism 3, a multifunctional body clamping mechanism 5 is arranged on the counter-moving mechanism 4, a slide rail system 6 is arranged at one end of the welding platform 1 away from the lifting mechanism 3, a welding mechanism 7 is slidably arranged at one end of the slide rail system 6 close to the lifting mechanism 3, a positioning and calibration mechanism 8 is slidably arranged at one end of the slide rail system 6 away from the welding mechanism 7, and a clamping and grinding integrated mechanism 9 is arranged on the positioning and calibration mechanism 8; the present invention arranges a truss 2 on the welding platform 1, a lifting mechanism 3 on the truss 2, and a counter-moving mechanism 4 on the lifting mechanism 3, and utilizes the counter-moving mechanism 4 to drive the multifunctional body clamping mechanism 5 to clamp the body For transportation, the multifunctional body clamping mechanism 5 of the present invention can adjust the clamping member 503 to a rectangular body tube clamping state or a circular body tube clamping state through the adjusting member 502, so as to adapt to the common shape of the non-load-bearing body beam at this stage, enhance the stability of the moving process and prevent shaking during the welding process, and provide an integrated clamping and grinding mechanism 9 on the positioning and calibration mechanism 8, and flexibly calibrate the specific welding position of the positioning pin through the variable distance of the positioning and calibration mechanism 8, and then keep the positioning pin stable during welding through the fixing component 903 of the integrated clamping and grinding mechanism 9, and process the welds and weld nodules generated after welding through the grinding component 902, so as to solve the problems of frequent switching, complicated operation, unstable welding quality, etc. in the existing welding process, and provide strong support for the manufacture of non-load-bearing bodies.

[0060] The multifunctional vehicle body clamping mechanism 5 comprises a hoisting member 501, an adjusting member 502 and a clamping member 503. The hoisting member 501 is symmetrically hoisted at the moving end of the opposite moving mechanism 4. The adjusting member 502 is arranged at the outer bottom end of the hoisting member 501. The clamping member 503 is arranged at the inner bottom end of the hoisting member 501. The clamping member 503 is adjusted by the adjusting member 502 to be in a rectangular vehicle body tube clamping state and a circular vehicle body tube clamping state.

[0061] The hanging member 501 includes a hanging plate 5011 and a movable groove 5012. The hanging plate 5011 is symmetrically hung at the moving end of the opposite moving mechanism 4. A plurality of movable grooves 5012 are opened at the bottom end of the hanging plate 5011. The clamping member 503 passes through the movable groove 5012 and is connected to the adjusting member 502. The clamping member 503 is movably arranged on the movable groove 5012. In the present invention, two movable grooves 5012 are opened on the hanging plate 5011, and the two ends of the clamping member 503 are movably arranged on the movable groove 5012 to realize shape adjustment.

[0062] The adjusting member 502 includes a mounting block 5021, a crank 5022, a worm 5023, a gear A5024, a worm wheel 5025 and a tooth plate 5026. The mounting block 5021 is arranged at the bottom end of the hanging plate 5011, the crank 5022 is rotatably inserted on the mounting block 5021, the worm 5023 is arranged at the end of the crank 5022 away from the mounting block 5021, the gear A5024 is rotatably arranged at a position between two movable grooves 5012, the worm wheel 5025 is fixedly connected to the outer side of the gear A5024, the worm wheel 5025 is meshingly connected to the worm 5023, one end of the tooth plate 5026 is connected to the clamping member 503, and the tooth plate 5026 is meshingly connected to the gear A5024. In the present invention, the worm 5023 is driven to rotate by rotating the crank 5022, the worm 5023 is engaged to drive the worm wheel 5025 to rotate, the worm wheel 5025 drives the gear A5024 to rotate, and the gear A5024 rotates to drive the toothed plates 5026 engaged on both sides to achieve opposite movement. The present invention uses an adjustment method in which the worm 5023 drives the worm wheel 5025 to rotate, and the worm wheel 5025 drives the gear A5024 to rotate. Since the worm 5023 and the worm wheel 5025 are self-locking, the toothed plate 5026 can be suspended at any height, thereby achieving flexible adjustment of the shape of the clamping member 503.

[0063] The clamping member 503 includes a housing 5031, an inclined groove 5032, a rubber plate 5033 and a trapezoidal block 5034. The housing 5031 is symmetrically and movably arranged on the movable groove 5012. The inclined grooves 5032 are provided on the outer walls of both sides of the housing 5031. The rubber plate 5033 is movably arranged on the two inclined grooves 5032. A plurality of trapezoidal blocks 5034 are arranged on the rubber plate 5033. In the present invention, the housing 5031 is driven to move in opposite directions by the adjusting member 502. The inclined groove 5032 of the housing 5031 squeezes the rubber plate 5033 to produce deformation. The rubber plate 5033 drives the trapezoidal block 5034 to bend to form a circular shape, such as Fig. 9and Fig.10 As shown, it is used to clamp the circular tubular beam of the non-load-bearing vehicle body. When the rubber plate 5033 and the trapezoidal block 5034 are in a straight line, they are used to clamp the rectangular tubular beam of the non-load-bearing vehicle body, thereby improving the efficiency of the non-load-bearing vehicle body beam movement and transportation in the present invention, while reducing the complexity of operation and the frequency of fixture switching.

[0064] In an embodiment of the present invention, the positioning and calibration mechanism 8 includes a base 801, a driving component 802 and a moving component 803. The base 801 is slidably arranged on the end of the slide rail system 6 away from the welding mechanism 7. The driving component 802 is arranged on the base 801, and the moving component 803 is slidably arranged on the base 801. A plurality of guide rails 8011 are horizontally arranged on the base 801, and the moving component 803 is slidably arranged on the guide rails 8011.

[0065] The driving assembly 802 includes a reduction motor 8021, a belt 8022, a screw 8023, a movable plate 8024 and a limit groove 8025. The reduction motor 8021 is arranged on the base 801, the screw 8023 is rotatably arranged on the base 801, the belt 8022 is wound around the output end of the reduction motor 8021 and one end of the screw 8023, the top end of the movable plate 8024 is movably sleeved on the screw 8023 and adapted to the screw 8023, the bottom end of the movable plate 8024 is slidably arranged on the base 801, and a plurality of limit grooves 8025 are obliquely opened on the movable plate 8024, and the plurality of limit grooves 8025 are cone-shaped as a whole.

[0066] The moving component 803 includes a slide plate 8031, a limiting rod 8032 and a supporting frame 8033. The slide plate 8031 ​​is slidably arranged on the guide rail 8011. The limiting rod 8032 is fixedly arranged on the top of the slide plate 8031. The limiting rod 8032 is movably inserted in the limiting groove 8025. The supporting frame 8033 is arranged at one end of the slide plate 8031 ​​away from the guide rail 8011. The integrated clamping and grinding mechanism 9 is arranged on the supporting frame 8033.

[0067] In the present invention, the belt 8022 is driven to rotate by driving the reduction motor 8021, the belt 8022 drives the screw rod 8023 to rotate, the screw rod 8023 drives the movable plate 8024 to move, the movable plate 8024 drives the limiting groove 8025 to move, and the limiting groove 8025 opened in an inclined shape pushes the limiting rod 8032 to drive the slide plate 8031 ​​and the supporting frame 8033 to move in position, so that the spacing between the clamping and grinding integrated mechanism 9 changes, so that the position and spacing of the locating pins can be flexibly adjusted according to the actual size and shape of different workpieces, so that it can be applicable to more types of non-load-bearing beams, and can also ensure the precise positioning of the beam during the welding process, which helps to reduce welding errors, improve welding quality, and ensure the smooth progress of subsequent assembly.

[0068] In an embodiment of the present invention, the clamping and grinding integrated mechanism 9 includes a power component 901, a grinding component 902, a fixing component 903 and a clutch component 904. The power component 901 is arranged on the positioning and calibration mechanism 8, the grinding component 902 is rotatably sleeved on one end of the power component 901, the fixing component 903 is sleeved on the other end of the power component 901, and the clutch component 904 is fixedly sleeved on the power component 901 at a position between the grinding component 902 and the fixing component 903. In the present invention, the clutch component 904 is driven to rotate by the power component 901, and the functionality of the clamping and grinding integrated mechanism 9 is quickly adjusted by adjusting the clutch component 904 to cooperate with the grinding component 902 or adjusting the clutch component 904 to cooperate with the fixing component 903. The accuracy of the positioning pin position is further stabilized by the fixing component 903, and the welding quality is further improved by the grinding component 902, so as to reduce the possible welds or weld nodules and improve the welding process of the automobile body.

[0069] The power assembly 901 includes a servo motor 9011, a gear B9012, a gear C9013, a power shaft 9014 and a mating rail 9015. The servo motor 9011 is arranged on the positioning and calibration mechanism 8, the gear B9012 is sleeved on the output end of the servo motor 9011, the gear C9013 is rotatably arranged on the positioning and calibration mechanism 8 at the bottom end of the servo motor 9011, the gear B9012 is meshedly connected to the gear C9013, the power shaft 9014 is fixed on the gear C9013, and the mating rail 9015 is arranged in a circular shape at equal intervals in the middle of the power shaft 9014.

[0070] The grinding assembly 902 includes a sleeve A9021, an inner tooth groove A9022, a conduction rod 9023 and a grinding disc 9024. The sleeve A9021 is rotatably sleeved on the power shaft 9014 and is located outside the fitting rail 9015. The inner tooth groove A9022 is opened on the inner wall of the sleeve A9021. A plurality of conduction rods 9023 are connected to the sleeve A9021. The grinding disc 9024 is connected to one end of the conduction rod 9023 away from the sleeve A9021.

[0071] The fixing assembly 903 includes a sleeve B9031, an inner tooth groove B9032, a fixing plate 9033, a center rod 9034, a rotating plate 9035, a curved groove 9036, a guide groove 9037, an L-shaped rod 9038 and a clamping plate 9039. The sleeve B9031 is rotatably mounted on the power shaft 9014. The inner tooth groove B9032 is provided on the inner wall of the sleeve B9031. The center rod 9034 is fixedly mounted on one end of the sleeve B9031. The fixing plate 9033 is rotatably mounted on the power shaft 9014. It is arranged on the center rod 9034, the rotating disk 9035 is fixedly sleeved on the center rod 9034, the curved grooves 9036 are opened on the rotating disk 9035 in a circular shape with equal intervals, the guide grooves 9037 are opened on the fixed disk 9033 in a circular shape with equal intervals, one end of the L-shaped rod 9038 is movably arranged on the curved groove 9036, and the other end of the L-shaped rod 9038 is movably arranged on the guide groove 9037, and the clamping plate 9039 is connected to the end of the L-shaped rod 9038 away from the center rod 9034.

[0072] The clutch assembly 904 includes a movable cylinder 9041, an adjusting paddle 9042, an external tooth groove 9043 and a fitting groove 9044. The movable cylinder 9041 is slidably sleeved on the power shaft 9014, the adjusting paddle 9042 is arranged on the outer wall of the movable cylinder 9041, the external tooth groove 9043 is opened at both ends of the outer wall of the movable cylinder 9041, and the fitting groove 9044 is opened on the inner wall of the movable cylinder 9041 in a circular shape with equal intervals, and the fitting groove 9044 is adapted to the fitting rail 9015.

[0073] In the present invention, the driving servo motor 9011 drives the gear B9012 to rotate, the gear B9012 engages with the gear C9013 to rotate, the gear C9013 drives the power shaft 9014 to rotate, the power shaft 9014 drives the matching rail 9015 to rotate, the matching rail 9015 engages with the matching groove 9044 to drive the movable cylinder 9041 to rotate;

[0074] If it is necessary to drive the grinding assembly 902 for grinding, push the adjusting paddle 9042 to make the movable cylinder 9041 slide on the power shaft 9014, mesh the outer tooth groove 9043 on one side with the inner tooth groove A9022, the power shaft 9014 drives the movable cylinder 9041 to rotate, the movable cylinder 9041 drives the outer tooth groove 9043 to rotate, the outer tooth groove 9043 rotates to drive the inner tooth groove A9022, the transmission rod 9023 and the grinding disc 9024 to rotate, so as to grind the weld;

[0075] If it is necessary to drive the fixing assembly 903 to clamp the positioning pin, push the adjusting paddle 9042 to make the movable cylinder 9041 slide on the power shaft 9014, mesh the outer tooth groove 9043 on one side with the inner tooth groove B9032, the power shaft 9014 drives the movable cylinder 9041 to rotate, the movable cylinder 9041 drives the outer tooth groove 9043 to rotate, the rotation of the outer tooth groove 9043 drives the center rod 9034 to rotate, the center rod 9034 drives the rotating disk 9035 and the curved groove 9036 to rotate, the curved groove 9036 drives the L-shaped rod 9038 to slide in the guide groove 9037, the L-shaped rod 9038 drives the clamping plate 9039 to achieve inward clamping, and the annular clamping and fixing of the positioning pin is achieved. The present invention makes it possible to adapt to the clamping of positioning pins of various sizes, and the annular clamping method is relatively stable and not easy to shake, thereby improving the welding efficiency of the device;

[0076] Compared with the traditional welding method, workers need to manually replace the fixture, perform welding operations and subsequent grinding work, which is labor-intensive and prone to errors. The present invention allows these heavy and repetitive tasks to be completed by machines, greatly reducing the labor intensity of workers. At the same time, due to the efficient operation and precise control of the equipment, material waste and defective products caused by human factors are reduced, further reducing production costs.

[0077] Working principle: This embodiment provides an automatic welding device for automobile bodies. When in use, first, the multifunctional body clamping mechanism 5 is driven by the opposite moving mechanism 4 to clamp the body for transportation. The shape of the multifunctional body clamping mechanism 5 is adjusted according to the shape of the body. The shell 5031 is driven by the adjusting member 502 to achieve opposite movement. The inclined groove 5032 of the shell 5031 squeezes the rubber sheet 5033 to produce deformation. The rubber sheet 5033 drives the trapezoidal block 5034 to bend to form a circular shape, which is used to clamp the circular tubular beam of the non-load-bearing body. When the rubber sheet 5033 and the trapezoidal block 5034 are in a straight line, they are used to clamp the rectangular tubular beam of the non-load-bearing body. After adjustment, the multifunctional body clamping mechanism 5 is used to clamp the body oppositely through the opposite moving mechanism 4, and then it is transported to the designated position through the lifting mechanism 3.

[0078] According to the opening position of the vehicle body beam, the spacing of the positioning pins is adjusted through the positioning calibration mechanism 8, the reduction motor 8021 is driven to drive the belt 8022 to rotate, the belt 8022 drives the screw rod 8023 to rotate, the screw rod 8023 drives the moving plate 8024 to move, the moving plate 8024 drives the limiting groove 8025 to move, the limiting groove 8025 opened in an inclined shape pushes the limiting rod 8032 to drive the sliding plate 8031 ​​and the bearing frame 8033 to move their positions, so that the spacing between the clamping and grinding integrated mechanisms 9 changes;

[0079] Secondly, push the adjusting paddle 9042 to make the movable cylinder 9041 slide on the power shaft 9014, mesh the outer tooth groove 9043 on one side with the inner tooth groove B9032, the power shaft 9014 drives the movable cylinder 9041 to rotate, the movable cylinder 9041 drives the outer tooth groove 9043 to rotate, the rotation of the outer tooth groove 9043 drives the center rod 9034 to rotate, the center rod 9034 drives the rotating disk 9035 and the curved groove 9036 to rotate, the curved groove 9036 drives the L-shaped rod 9038 to slide in the guide groove 9037, the L-shaped rod 9038 drives the clamping plate 9039 to achieve inward clamping, and the annular clamping and fixing of the positioning pin is achieved;

[0080] Finally, push the adjusting paddle 9042 to make the movable cylinder 9041 slide on the power shaft 9014, mesh the outer tooth groove 9043 on one side with the inner tooth groove A9022, and the power shaft 9014 drives the movable cylinder 9041 to rotate, and the movable cylinder 9041 drives the outer tooth groove 9043 to rotate. The rotation of the outer tooth groove 9043 drives the inner tooth groove A9022, the conduction rod 9023 and the grinding disk 9024 to rotate, so as to grind the weld and complete the welding of the positioning pin and the car body.

[0081] The embodiments of the present invention disclose preferred embodiments, but are not limited thereto. A person skilled in the art can easily understand the spirit of the present invention based on the above embodiments and make different extensions and changes. However, as long as they do not deviate from the spirit of the present invention, they are all within the protection scope of the present invention.

Claims

1. An automatic welding equipment for automobile body, It is characterized in that The welding platform (1) comprises a truss (2) on which the welding platform (1) is provided, a lifting mechanism (3) on which the truss (2) is provided, a counter-moving mechanism (4) on the bottom end of the lifting mechanism (3), a multifunctional vehicle body clamping mechanism (5) on the counter-moving mechanism (4), a slide rail system (6) on one end of the welding platform (1) away from the lifting mechanism (3), a welding mechanism (7) on one end of the slide rail system (6) close to the lifting mechanism (3) for sliding movement, a positioning and calibration mechanism (8) on one end of the slide rail system (6) away from the welding mechanism (7) for sliding movement, and a clamping and grinding integrated mechanism (9) on the positioning and calibration mechanism (8); The multifunctional vehicle body clamping mechanism (5) comprises a hanging member (501), an adjusting member (502) and a clamping member (503); the hanging member (501) is symmetrically hung on the moving end of the opposite moving mechanism (4); the adjusting member (502) is arranged at the outer bottom end of the hanging member (501); the clamping member (503) is arranged at the inner bottom end of the hanging member (501); the clamping member (503) is adjusted by the adjusting member (502) to be in a rectangular vehicle body tube clamping state and a circular vehicle body tube clamping state; The hanging member (501) comprises a hanging plate (5011) and a movable groove (5012), the hanging plate (5011) is symmetrically hung on the moving end of the opposite moving mechanism (4), a plurality of movable grooves (5012) are provided at the bottom end of the hanging plate (5011), the clamping member (503) passes through the movable groove (5012) and is connected to the adjusting member (502), and the clamping member (503) is movably arranged on the movable groove (5012); The clamping and grinding integrated mechanism (9) comprises a power component (901), a grinding component (902), a fixing component (903) and a clutch component (904); the power component (901) is arranged on the positioning and calibration mechanism (8); the grinding component (902) is rotatably sleeved on one end of the power component (901); the fixing component (903) is sleeved on the other end of the power component (901); and the clutch component (904) is fixedly sleeved on the power component (901) at a position between the grinding component (902) and the fixing component (903); The adjusting member (502) comprises a mounting block (5021), a crank handle (5022), a worm (5023), a gear A (5024), a worm wheel (5025) and a toothed plate (5026); the mounting block (5021) is arranged at the bottom end of the hanging plate (5011); the crank handle (5022) is rotatably inserted on the mounting block (5021); and the worm (5023) is arranged at a position where the crank handle (5022) is away from the mounting block (5024). The gear A (5024) is rotatably arranged at one end of the two movable grooves (5012), the worm wheel (5025) is fixedly connected to the outer side of the gear A (5024), the worm wheel (5025) is meshingly connected to the worm (5023), one end of the tooth plate (5026) is connected to the clamping member (503), and the tooth plate (5026) is meshingly connected to the gear A (5024); The clamping member (503) comprises a shell (5031), an inclined groove (5032), a rubber plate (5033) and a trapezoidal block (5034); the shell (5031) is symmetrically and movably arranged on the movable groove (5012); the inclined groove (5032) is opened on the outer walls of both sides of the shell (5031); the rubber plate (5033) is movably arranged on the two inclined grooves (5032); and a plurality of the trapezoidal blocks (5034) are arranged on the rubber plate (5033).

2. The automobile body automated welding equipment according to claim 1, It is characterized in that The positioning and calibration mechanism (8) comprises a base (801), a driving component (802) and a moving component (803); the base (801) is slidably disposed on an end of the slide rail system (6) away from the welding mechanism (7); the driving component (802) is disposed on the base (801); and the moving component (803) is slidably disposed on the base (801); A plurality of guide rails (8011) are arranged transversely on the base (801), and the moving assembly (803) is slidably arranged on the guide rails (8011).

3. The automobile body automated welding equipment according to claim 2, It is characterized in that The driving assembly (802) comprises a reduction motor (8021), a belt (8022), a screw rod (8023), a movable plate (8024) and a limiting groove (8025); the reduction motor (8021) is arranged on the base (801); the screw rod (8023) is rotatably arranged on the base (801); the belt (8022) is wound around the output end of the reduction motor (8021) and one end of the screw rod (8023); the top end of the movable plate (8024) is movably sleeved on the screw rod (8023) and is adapted to the screw rod (8023); the bottom end of the movable plate (8024) is slidably arranged on the base (801); a plurality of limiting grooves (8025) are obliquely opened on the movable plate (8024); and the plurality of limiting grooves (8025) are in a cone shape as a whole.

4. The automobile body automated welding equipment according to claim 3, It is characterized in that The moving component (803) comprises a slide plate (8031), a limiting rod (8032) and a supporting frame (8033); the slide plate (8031) is slidably arranged on the guide rail (8011); the limiting rod (8032) is fixedly arranged on the top of the slide plate (8031); the limiting rod (8032) is movably inserted in the limiting groove (8025); the supporting frame (8033) is arranged at one end of the slide plate (8031) away from the guide rail (8011); and the integrated clamping and grinding mechanism (9) is arranged on the supporting frame (8033).

5. The automobile body automated welding equipment according to claim 4, It is characterized in that The power assembly (901) comprises a servo motor (9011), a gear B (9012), a gear C (9013), a power shaft (9014) and a mating rail (9015); the servo motor (9011) is arranged on the positioning and calibration mechanism (8); the gear B (9012) is sleeved on the output end of the servo motor (9011); the gear C (9013) is rotatably arranged on the positioning and calibration mechanism (8) at a position located at the bottom end of the servo motor (9011); the gear B (9012) is meshedly connected to the gear C (9013); the power shaft (9014) is fixedly arranged on the gear C (9013); and the mating rail (9015) is arranged in a ring shape at equal intervals in the middle of the power shaft (9014).

6. The automobile body automated welding equipment according to claim 5, It is characterized in that The grinding assembly (902) comprises a sleeve A (9021), an inner tooth groove A (9022), a conduction rod (9023) and a grinding disc (9024); the sleeve A (9021) is rotatably sleeved on the power shaft (9014) at a position outside the mating rail (9015); the inner tooth groove A (9022) is opened on the inner wall of the sleeve A (9021); a plurality of the conduction rods (9023) are connected to the sleeve A (9021); and the grinding disc (9024) is connected to one end of the conduction rod (9023) away from the sleeve A (9021).

7. The automobile body automated welding equipment according to claim 6, It is characterized in that The fixing assembly (903) comprises a sleeve B (9031), an inner tooth groove B (9032), a fixing plate (9033), a center rod (9034), a rotating plate (9035), a curved groove (9036), a guide groove (9037), an L-shaped rod (9038) and a clamping plate (9039); the sleeve B (9031) is rotatably mounted on the power shaft (9014); the inner tooth groove B (9032) is formed on the inner wall of the sleeve B (9031); the center rod (9034) is fixedly mounted on one end of the sleeve B (9031); the fixing plate (9033) is rotatably mounted on the power shaft (9014); The rotating disk (9035) is fixedly sleeved on the center rod (9034), the curved grooves (9036) are formed in a circular shape and are evenly spaced on the rotating disk (9035), the guide grooves (9037) are formed in a circular shape and are evenly spaced on the fixed disk (9033), one end of the L-shaped rod (9038) is movably disposed on the curved groove (9036), the other end of the L-shaped rod (9038) is movably disposed on the guide groove (9037), and the clamping plate (9039) is connected to the end of the L-shaped rod (9038) away from the center rod (9034).

8. The automobile body automated welding equipment according to claim 7, It is characterized in that The clutch assembly (904) comprises a movable cylinder (9041), an adjusting paddle (9042), an external tooth groove (9043) and a fitting groove (9044); the movable cylinder (9041) is slidably sleeved on the power shaft (9014); the adjusting paddle (9042) is arranged on the outer wall of the movable cylinder (9041); the external tooth groove (9043) is arranged at both ends of the outer wall of the movable cylinder (9041); the fitting groove (9044) is arranged on the inner wall of the movable cylinder (9041) in a circular shape and at equal intervals; the fitting groove (9044) is adapted to the fitting rail (9015).

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