Automobile side body positioning and welding mechanism and technology

Abstract

The invention discloses an automobile side body positioning and welding mechanism and technology, relates to the field of automobile side body positioning and welding, and solves the problems that although existing automobile side body automatic positioning and welding mechanisms exist, the existing automobile side body automatic positioning and welding mechanisms are mostly used on production lines, are high in cost, cannot be flexibly compatible with different automobile types and cannot be suitable for civil vehicle side body maintenance. The automobile side wall clamping device comprises a supporting table, a limiting box, a vertical sliding way, lower sliding blocks, upper sliding blocks, a frame body, an electric hydraulic cylinder, a first rotating plate, a groove body, a sliding frame, an automobile frame positioning mechanism, a driving motor, an automobile side wall clamping mechanism, a touch plate, a first inserting opening, a sliding plate, an abutting plate, an inclined block, a spring, an ejecting block, a second inserting opening and a limiting block. The limiting blocks and the limiting grooves are matched and inserted for limiting. The device has the advantages of being convenient to adjust and position, capable of positioning and welding vehicles of various models, stable in positioning, low in cost and capable of meeting the use requirement of civil vehicle maintenance.

Description

Technical Field

[0001] The invention relates to the field of automobile side panel positioning welding, and in particular to an automobile side panel positioning welding mechanism and process. Background Art

[0002] The diversification of automobile appearance is an increasing demand from consumers and is also the direction that OEMs are constantly pursuing. However, the welding fixtures used in the existing body-in-white welding production lines are all fixed welding methods and cannot be moved. Moreover, the current body-in-white welding production lines cannot adapt to the welding tools of different models, and cannot meet the flexible production requirements of switching welding fixtures of different models on one production line.

[0003] Furthermore, on the existing automated production lines, although there are some highly intelligent robotic arms that can meet the requirements for positioning and welding of the car side panels, they are bulky and expensive, and cannot be used in the field of civilian maintenance. Especially after some vehicles collide, the side panels need to be repaired and replaced as a whole. Currently, electric hoists are generally used for pulling and disassembling or hoisting and welding, which is extremely unstable. The welding quality of the side panels is also related to the subsequent overall structural strength.

[0004] The applicant has obtained the publication number CN108942028B after searching, and the title is: Automobile body side panel clamp, which discloses that it includes a base; the base includes a column end positioning device, a window upper beam positioning device, a column positioning device, a waist positioning device and a skirt positioning device from left to right. When processing the automobile body side panel, the side panel column positioning structure can effectively position the automobile body side panel column and the window upper beam, making the side panel processing more convenient and accurate.

[0005] However, the technical solutions disclosed in the above prior art are only for positioning and manufacturing the automobile side panel itself, and cannot be generally used to effectively position the automobile side panel in civilian maintenance, so as to improve the subsequent welding quality. Therefore, a positioning welding mechanism and process for automobile side panel is proposed. Summary of the invention

[0006] The purpose of the present invention is to provide a vehicle side panel positioning welding mechanism and process, which solves the problem that although there are automatic positioning welding mechanisms for vehicle side panels, they are mostly used on production lines, are expensive, cannot be flexibly compatible with different vehicle models, and cannot be used for civilian vehicle side panel maintenance.

[0007] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a vehicle side panel positioning welding mechanism, comprising a support platform, the left and right sides of the support platform are fixedly connected to a limit box, the front and rear ends of each limit box are fixedly connected to a vertical slide, the upper and lower sides of each vertical slide are respectively slidably connected to a lower slide block and an upper slide block, a frame is rotatably connected between the front and rear lower slide blocks on the same left and right sides, an electric hydraulic cylinder is penetrated and embedded in the upper end of the vertical slide, the output end of the lower side of the electric hydraulic cylinder is fixedly connected to the upper slide block, and the front and rear sides of each of the frames are rotatably connected between the upper slide blocks on one side, a rotating plate 1 is rotatably connected, a groove body is further provided on the left and right sides of the upper end surface of the support platform, and a sliding frame is slidably connected to the groove body, a frame positioning mechanism is installed in the sliding frame, a driving motor is installed on the front and rear inner walls of the frame, and a vehicle side panel clamping mechanism is installed between the driving motors on the front and rear sides; The cam is an angular channel formed between a pair of camshafts and a pair of camshafts, each of which is connected to a pair of camshafts which are connected at the opposite end of the camshaft to form a pair of camshafts which are connected at the opposite end of the camshaft.

[0008] Preferably, the touch panels on both sides are fixedly connected to the front and rear inner walls of the frame close to the support platform, the upper end surface of the touch panel is slidably connected with the extended end of the abutment plate on the outside of the limit box, and the frame is slidably connected with the inclined surface of the inclined block.

[0009] Preferably, each of the sockets 1 penetrates through a side surface of the vertical slideway and the limit box that is close to each other, and the limit block slides through the socket 1 and cooperates with the limit groove to be inserted and limited.

[0010] Preferably, each of the slide plates is fixedly connected with a plurality of springs and top blocks in a linear array, and the springs and top blocks are arranged in an alternating manner.

[0011] Preferably, the frame positioning mechanism includes a servo motor, a bidirectional screw rod, and a guide block. A servo motor is fixedly installed on the front and rear inner walls of each sliding frame. The output ends of the servo motors on the front and rear sides close to each other are directly fixedly connected to a bidirectional screw rod, and the threads on the outer side surfaces at the front and rear ends of the bidirectional screw rod are oppositely arranged, and the threaded sleeves are symmetrically provided with guide blocks. The guide blocks are limitedly slidably connected to the inner wall of the sliding frame, and the ends of the guide blocks on the front and rear sides close to each other are rotatably connected to a rotating plate 2, and a clamping plate is commonly connected between the ends of the front and rear two rotating plates 2 on the same left and right sides close to each other.

[0012] Preferably, the front and rear ends of the splint are respectively rotatably connected to the rotating plates 2 on the front and rear sides close to one end, and the side of the splint close to the support platform is also fixedly connected to a rubber pad 1. The end face of each sliding frame close to the socket 2 on its own side is arranged with an inclined surface, and cooperates with the top block to slide in contact.

[0013] Preferably, both front and rear ends of the slide frame are fixedly connected with limit slide blocks, both front and rear inner walls of the groove body are provided with limit slide rails, and the limit slide blocks are slidably connected in the limit slide rails on each side.

[0014] Preferably, the automobile side panel clamping mechanism includes a turntable, an electric cylinder, and a transverse electric slide rail. The output ends of the driving motors on the front and rear sides close to each other are commonly fixedly connected to the turntable. The turntable is embedded with multiple electric cylinders. The output ends on the upper sides of the electric cylinders are commonly fixedly connected to the transverse electric slide rail. An electric slider 1 is slidably connected in the transverse electric slide rail, and a support frame is fixedly installed on the upper end of the electric slider 1, and the front and rear ends of the support frame are fixedly connected to the vertical electric slide rails, and the left and right ends of each of the vertical electric slide rails are slidably connected to an electric slider 2, and the upper end of each of the electric sliders 2 is rotatably connected to A rotating plate three, two left and right rotating plates three on the same front and rear side are connected to each other with an articulated seat for common rotation, and the articulated seats on the front and rear sides are connected to the seat plates through a pin shaft for rotation on the sides close to each other, and servo motors two are fixedly installed on the front and rear sides of the upper end of the seat plate, and a two-way screw rod two is fixedly connected between the output ends of the servo motors two on the front and rear sides close to each other, and guide slide rods are fixed on the left and right sides of the two-way screw rod two, and the outer side surfaces of the front and rear ends of the two-way screw rod two have opposite thread rotation directions, and are respectively threaded with sleeve plates, and the upper end of each sleeve plate is fixedly connected with a side claw, and the left and right ends of the sleeve plate are slidably sleeved on the outer side surfaces of the guide slide rods on both sides.

[0015] Preferably, the seat plate and the front and rear side hinged seats are connected in a front-to-rear pitching and rotating manner.

[0016] A process for positioning and welding a vehicle side panel, comprising the following steps: S1: First, drive the vehicle to be repaired onto the support platform, or move the frame onto the support platform, then move the car side panel to be welded into the frame, and adjust the position, then start the servo motor 2 to drive the two-way screw 2 to rotate, and then drive the sleeve plates and the side panel claws on the front and rear sides to approach each other, so as to clamp the car side panel B-pillar through the side panel claws; S2: Control the electric hydraulic cylinder to contract, and pull the upper slider to slide upward in the vertical slideway, and then the frame can be driven to rotate around the rotation connection with the lower slider through the rotating plate 1. As the rotation proceeds, the touch plate fixedly connected to the frame also rotates, and then gradually contacts the abutment plate extending outside the limit box, and the abutment plate is pushed to drive the slide plate to move in the limit box toward one side of the support platform and compress the spring. The movement of the slide plate will synchronously drive the limit block to gradually disengage from the limit groove, thereby canceling the limit on the lower slider; S3: When the frame rotates to a vertical state, the limit block completely cancels the limit on the lower slider. At this time, if the electric hydraulic cylinder continues to operate, it can drive the rotating plate to pull the frame to slide up and down to achieve height adjustment, and the lower slider slides in the vertical slideway to effectively stabilize the height adjustment; S4: When the frame body rotates from the horizontal to the vertical state, the sliding of the slide plate will also push the top block through the second socket and extend into the slot body, thereby driving the sliding contact with the inclined surface of the slide frame, so that the slide frame stored in the slot body is ejected from the slot body, and then the servo motor 1 can be controlled to operate, thereby driving the two-way screw rod 1 to rotate, thereby making the guide blocks on the front and rear sides approach each other, and driving the rotating plate 2 to rotate, so as to drive the clamping plate, so that the clamping plates in the left and right slide frames can approach each other and clamp the frame on the middle support platform firmly. At the same time, due to the clamping contact between the clamping plate and the frame, there is a reaction force, so that the limit slider can be tightly contacted with the limit slide rail on each side, so that even if there is no contact between the top block and the slide frame, the slide frame will not fall due to the extrusion contact between the limit slider and the limit slide rail, and the contact between the lower end surface of the clamping plate and the upper end surface of the support platform; S5: When the frame is adjusted to a vertical state, the turntable can be driven to rotate by controlling the operation of the driving motor. At the same time, the distance between the transverse electric slide rail and the middle frame can be adjusted by controlling the extension and contraction of the electric cylinder, so that the side panel of the car clamped by the side panel claw can be driven to rotate in the left and right directions, and the distance from the middle frame can be adjusted. The transverse electric slide rail can also be controlled to drive the electric slider 1 to move, so as to adjust the front and rear position of the support frame to further adjust the front and rear position of the clamped frame. At the same time, the two electric sliders 2 in the front or rear vertical electric slide rails can be controlled to move closer or farther away from each other, so as to tilt the front or rear end of the clamped side panel of the car toward the middle frame, so as to gradually fit the clamped side panel of the car with the middle frame or the side panel of the vehicle to be repaired, and then welding can be performed by an existing welding robot or manually.

[0017] Compared with the related art, the automobile side panel positioning welding mechanism and process provided by the present invention have the following beneficial effects: 1. The present invention provides a side panel positioning welding mechanism and process for an automobile. The mechanism controls a servo motor 2 to drive the side panel claws on both sides to approach each other, thereby clamping the B-pillar of the side panel of the automobile, and then controls an electric hydraulic cylinder to drive the upper slider to move upward, and pulls a rotating plate 1 to rotate, and then first drives a frame 1 to rotate around a rotating connection between the frame 1 and the lower sliding frame, thereby realizing a rotation from a horizontal state to a vertical state. During this process, the rotation of the frame will drive the touch plate to rotate gradually, thereby realizing the contact between the touch plate and the abutment plate, thereby driving the slide plate to slide into a limit box and compressing a spring, so that when the frame rotates from a horizontal state to a vertical state, the slide plate can slide and drive the limit block to leave the limit groove, thereby facilitating the electric hydraulic cylinder to pull the rotating plate 1 and then pull the frame to adjust its height in a vertical direction, thereby realizing driving the clamped side panel of the automobile to adjust its height.

[0018] 2. The present invention provides a vehicle side panel positioning welding mechanism and process, when the slide plate is driven to move by the abutment plate, it can also synchronously drive the top block to push the inclined surface of one side of the slide frame upward, thereby driving the slide frame as a whole to move up and slide out of the slide slot, and then each servo motor can be controlled to operate, thereby driving the guide blocks on both sides to approach each other, and driving the rotating plate to rotate, so as to push the clamping plates in the left and right slide frames to approach each other, so that the clamping plates on both sides can approach each other and squeeze and contact the frame on the support platform or the two sides of the vehicle to be repaired for positioning. At the same time, if the lower slider moves upward at this time and the contact with the abutment plate is cancelled, the slide plate will reset, but the lower end of the clamping plate will be in contact with the upper end surface of the support platform, and the limit will prevent the slide frame from sliding down and sliding into the slide slot, but when the servo motor is controlled to flip and drive the clamping plate to reset, the slide frame will fall back into the slot body under the action of gravity.

[0019] 3. The present invention provides a vehicle side panel positioning welding mechanism and process. Through the operation of a driving motor, an electric cylinder, a transverse electric slide rail and a vertical electric slide rail, the front and rear positions of the clamped vehicle side panel and the distance and angle with the intermediate frame or the vehicle to be repaired can be adjusted to facilitate close fitting with the frame or the vehicle to be repaired. Then, high-precision positioning welding can be achieved through an automated welding robot or manual welding to improve welding quality.

[0020] The device has the advantages of convenient adjustment and positioning, so as to realize positioning welding for vehicles of various models, and the positioning is stable and the cost is low, which can meet the needs of maintenance of civilian vehicles. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural schematic diagram of the present invention.

[0022] Figure 2 It is a cross-sectional view of the structure of the present invention.

[0023] Figure 3 It is a cross-sectional view of the bottom-up structure of the present invention.

[0024] Figure 4 for Figure 2 Enlarged view of point A in the middle.

[0025] Figure 5 for Figure 3 Enlarged view of point B in the middle.

[0026] Figure 6 It is a schematic diagram of the vertical slide, limit box and related structures at the frame of the present invention.

[0027] Figure 7 for Figure 6 There is no structural diagram of the vertical slide and limit box.

[0028] Figure 8 It is a schematic diagram of the related structure of the frame and the sliding frame of the present invention.

[0029] Fig. 9 It is a schematic diagram of the frame positioning mechanism of the present invention.

[0030] Fig.10 The figure is a schematic structural diagram of the automobile side panel clamping mechanism of the present invention.

[0031] In the figure: 1, support platform; 2, limit box; 3, vertical slide; 4, lower slide; 5, frame; 6, electric hydraulic cylinder; 7, upper slide; 8, turn plate 1; 9, trough; 10, slide frame; 1001, servo motor 1; 1002, two-way screw rod 1; 1003, guide block; 1004, turn plate 2; 1005, clamping plate; 1006, rubber pad 1; 1007, limit slide; 1008, limit slide rail; 11, touch plate; 12, socket 1; 13, slide plate; 14, spring; 15, stop plate; 1501, inclined block; 16. Socket 2; 17. Top block; 18. Limiting groove; 19. Limiting block; 20. Driving motor; 21. Turntable; 22. Electric cylinder; 2201. Horizontal electric slide; 2202. Electric slider 1; 2203. Support frame; 2204. Vertical electric slide; 2205. Electric slider 2; 2206. Turntable 3; 2207. Articulated seat; 2208. Seat plate; 2209. Servo motor 2; 2210. Bidirectional screw 2; 2211. Guide slide; 2212. Sleeve plate; 2213. Side enclosure claws. DETAILED DESCRIPTION

[0032] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments; based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention. Embodiment 1:

[0033] See also Figure 1-8 10. The present invention provides a technical solution: a vehicle side panel positioning welding mechanism, comprising a support platform 1, the left and right sides of the support platform 1 are fixedly connected to a limit box 2, the front and rear ends of each limit box 2 are fixedly connected to a vertical slide 3, the upper and lower sides of each vertical slide 3 are respectively slidably connected to a lower slider 4 and an upper slider 7, a frame 5 is rotatably connected between the front and rear two lower sliders 4 on the same left and right sides, an electric hydraulic cylinder 6 is embedded through the upper end of the vertical slide 3, the output end of the lower side of the electric hydraulic cylinder 6 is fixedly connected to the upper slider 7, a rotating plate 8 is rotatably connected between the upper sliders 7 on each side of the front and rear sides of each frame 5, a groove body 9 is also opened on the left and right sides of the upper end surface of the support platform 1, and a slide frame 10 is slidably connected in the groove body 9, a frame positioning mechanism is installed in the slide frame 10, a driving motor 20 is installed on the front and rear inner walls of the frame 5, and a vehicle side panel clamping mechanism is installed between the driving motors 20 on the front and rear sides; A touch plate 11 is fixedly connected to the inner wall of one side of the frame 5 close to the support platform 1, and a socket 12 is opened between the front and rear ends of each limit box 2 and the vertical slide 3 on each side, a slide plate 13 is slidably connected in the limit box 2, and a resist plate 15 is fixedly connected to the side of the slide plate 13 away from the support platform 1, the resist plate 15 penetrates the limit box 2 and extends to its outside, and is slidably connected to the touch plate 11 at the extended end, and a spring 14 is fixedly connected between the other end of the slide plate 13 and the inner wall of the limit box 2, the touch plates 11 on both sides are fixedly connected to the front and rear inner walls of the side of the frame 5 close to the support platform 1, the upper end surface of the touch plate 11 is slidably and resistively connected with the extended end of the resist plate 15 on the outside of the limit box 2, the frame 5 is slidably connected with the inclined surface of the inclined block 1501, each socket 12 penetrates the side of the vertical slide 3 and the limit box 2 close to each other, and the limit block 19 slides through the socket 12 and cooperates with the limit groove 18 to be inserted for limit.

[0034] The positioning of the lower slide 4 can be achieved by the cooperation and insertion of the limit block 19 and the limit groove 18. Then, when the electric hydraulic cylinder 6 is controlled to retract, the frame 5 can be driven to gradually rotate from the horizontal to the vertical state by pulling the rotating plate 8. Due to the interference between the abutment plate 15 and the touch plate 11, during this process, the touch plate 11 will gradually drive the abutment plate 15 to retract into the limit box 2 and push the slide plate 13 to move. The insertion and limiting of the limit block 19 and the limit groove 18 is canceled after the frame 5 is rotated to the vertical state. At this time, since the frame 5 has been rotated to the vertical state, the upper slide 7 is continued to be lifted up as the electric hydraulic cylinder 6 is retracted, and the lower slide 4 is driven to move up by the rotating plate 8, thereby realizing the overall height adjustment of the frame 5.

[0035] One end surface of the slide plate 13 connected to the spring 14 is also fixedly connected to a top block 17. A plurality of sockets 16 are provided between the groove body 9 and the limit box 2 on each side. Each top block 17 is arranged corresponding to the socket 16 on each side, and slides through the socket 16 and extends in the groove body 9 to cooperate with the slide frame 10 for sliding connection. The front and rear ends of the slide plate 13 are fixedly connected to the limit block 19. A limit groove 18 is provided on the side of each lower slide block 4 close to the support platform 1. The limit block 19 and the limit groove 18 are provided. 8 In cooperation with the insertion limit, the upper end surface of the extended end of the support plate 15 is fixedly connected with an inclined block 1501. The setting of the inclined block 1501 can ensure that when the lower slider 4 is moved down after being lifted up, the lower edge of the frame 5 will come into contact with the inclined surface of the inclined block 1501, thereby driving the support plate 15 to be recovered into the limit box 2 again until the frame 5 is reset to the lowest horizontal state. At this time, the support plate 15 will also be reset again, and the limit block 19 will also cooperate with the limit groove 18 to insert the limit.

[0036] When the sleeve frame 5 rotates from the horizontal state to the vertical state, the top block 17 is also driven to slide into the groove body 9 and resist the inclined surface of the groove body 9, thereby pushing the slide frame 10 to rise in the groove body 9 and rise to above the support platform 1.

[0037] A plurality of springs 14 and top blocks 17 are fixedly connected to each slide plate 13 in a linear array, and the springs 14 and top blocks 17 are arranged alternately. Embodiment 2:

[0038] See also Figure 1-8 , 10. The present invention provides a technical solution: a frame positioning mechanism includes a servo motor 1001, a bidirectional screw rod 1002, and a guide block 1003. The servo motor 1001 is fixedly installed on the inner walls of the front and rear sides of each sliding frame 10. The output ends of the servo motors 1001 on the front and rear sides close to each other are directly fixedly connected with the bidirectional screw rod 1002, and the threads of the outer side surfaces at the front and rear ends of the bidirectional screw rod 1002 are oppositely set, and the guide blocks 1003 are symmetrically sleeved respectively. The guide blocks 1003 are limitedly slidably connected to the inner wall of the sliding frame 10, and the ends of the guide blocks 1003 on the front and rear sides close to each other are rotatably connected with a rotating plate 2 1004, and the ends of the front and rear rotating plates 1004 on the same left and right sides close to each other are commonly connected with a clamping plate 1005.

[0039] The front and rear ends of the clamping plate 1005 are rotatably connected to the rotating plates 1004 on the front and rear sides respectively, and a rubber pad 1006 is fixedly connected to the side of the clamping plate 1005 close to the support platform 1. The end surface of each sliding frame 10 close to the socket 16 on one side is inclined, and cooperates with the top block 17 to slide against each other.

[0040] At this time, when the frame 5 rotates to a vertical state, the sliding frame 10 will also be above the support platform 1. At this time, the servo motor 1001 is started, which drives the bidirectional screw rod 1002 to rotate, so that the guide blocks 1003 on the front and rear sides can approach each other, and then drive the rotating plate 1004 to rotate, so that the clamping plates 1005 on both sides can approach each other to clamp the frame placed in the middle of the support platform 1 or the vehicle to be repaired. The design of the rubber pad 1006 avoids direct contact and hard clamping that may cause other damage to the frame or the side of the vehicle to be repaired.

[0041] At this time, since the splint 1005 is squeezed out, its lower end surface will be in contact with the upper end surface of the support platform 1. Therefore, even if the lower slider 4 is driven up and down and the contact with the abutment plate 15 is cancelled, the slide frame 10 will not fall when the slide plate 13 is reset. Only when the splint 1005 is driven back into the slide frame 10, the slide frame 10 can fall into the groove body 9 by gravity.

[0042] The front and rear ends of the slide frame 10 are fixedly connected with limit sliders 1007, and the front and rear inner walls of the groove body 9 are provided with limit slide rails 1008. The limit sliders 1007 are slidably connected in the limit slide rails 1008 on their respective sides. The sliding connection between the limit sliders 1007 and the limit slide rails 1008 can improve the stability of the slide frame 10 sliding up and down. At the same time, when the clamping plate 1005 clamps the frame or both sides of the vehicle to be repaired, it can also provide a reaction extrusion force, so that the slide frame 10 can be more stable in this state. Embodiment three:

[0043] See also Figure 1-10 The present invention provides a technical solution: a vehicle side panel clamping mechanism comprises a turntable 21, an electric cylinder 22, and a transverse electric slide rail 2201. The output ends of the driving motors 20 on the front and rear sides close to each other are commonly fixedly connected with the turntable 21. A plurality of electric cylinders 22 are embedded in the turntable 21. The output ends on the upper sides of the electric cylinders 22 are commonly fixedly connected with the transverse electric slide rail 2201. An electric slider 1 2202 is slidably connected in the transverse electric slide rail 2201, and a support frame 2203 is fixedly installed on the upper end of the electric slider 1 2202, and the front and rear ends of the support frame 2203 are fixedly connected with vertical electric slide rails 2204, and the left and right ends of each vertical electric slide rail 2204 are slidably connected with an electric slider 2 2205, and the upper end of each electric slider 2 2205 is rotatably connected with a turntable Plate three 2206, the left and right rotating plates three 2206 on the same side of the front and rear are connected to each other with an articulated seat 2207 for rotation, the articulated seats 2207 on the front and rear sides are connected to the seat plate 2208 through a pin shaft for rotation on the side close to each other, servo motors 2209 are fixedly installed on both sides of the upper end of the seat plate 2208, and a two-way screw rod 2210 is fixedly connected between the output ends of the servo motors 2209 on the front and rear sides close to each other, and guide slide bars 2211 are fixed on the left and right sides of the two-way screw rod 2210, the outer side surfaces of the front and rear ends of the two-way screw rod 2210 have opposite thread rotation directions, and are respectively threaded with sleeve plates 2212, the upper end of each sleeve plate 2212 is fixedly connected with a side enclosure claw 2213, and the left and right ends of the sleeve plate 2212 are slidably sleeved on the outer side surfaces of the guide slide bars 2211 on both sides.

[0044] The seat plate 2208 and the front and rear side articulated seats 2207 are all connected in pitch and rotation in the front and rear directions, so that the operation of the drive motor 20 can be controlled to drive the turntable 21 to rotate. At the same time, the distance between the transverse electric slide rail 2201 and the middle frame can be adjusted through the telescopic control of the electric cylinder 22, so that the side of the car clamped by the side clamp claw 2213 can be driven to rotate in the left and right directions, and the distance from the middle frame can be adjusted. The transverse electric slide rail 2201 can also be controlled to drive the electric slider 1 2202 to move, and the front and rear positions of the support frame 2203 can be adjusted to further adjust the front and rear positions of the clamped frame. At the same time, the two electric sliders 2205 in the front or rear vertical electric slide rails 2204 can be controlled to move closer to or farther away from each other, so as to tilt the front end or rear end of the clamped car side toward the middle frame, so as to gradually fit the clamped car side with the middle frame or the side of the vehicle to be repaired, and then welding can be performed by an existing welding robot or manually. Embodiment 4:

[0045] See also Figure 1-10 The present invention provides a technical solution: a process for positioning and welding a side panel of an automobile, comprising the following steps: S1: First, the vehicle to be repaired is driven onto the support platform 1, or the frame is moved onto the support platform 1, and then the side panel of the vehicle to be welded is moved into the frame 5 and adjusted in position, and then the servo motor 2209 is started to drive the bidirectional screw rod 2210 to rotate, thereby driving the sleeve plates 2212 and the side panel claws 2213 on the front and rear sides to approach each other, so as to clamp the side panel B-pillar of the vehicle through the side panel claws 2213; S2: Control the electric hydraulic cylinder 6 to contract, and pull the upper slider 7 to slide upward in the vertical slide 3, and then the frame 5 can be driven to rotate around the rotation connection with the lower slider 4 through the rotating plate 18. As the rotation proceeds, the touch plate 11 fixedly connected to the frame 5 also rotates, and then gradually contacts the abutment plate 15 extending outside the limit box 2, and the abutment plate 15 is pushed to drive the slide plate 13 to move in the limit box 2 toward one side of the support platform 1, and compress the spring 14. The movement of the slide plate 13 will synchronously drive the limit block 19 to gradually disengage from the limit groove 18, thereby canceling the limit on the lower slider 4; S3: When the frame 5 rotates to the vertical state, the limit block 19 completely cancels the limit of the lower slider 4. At this time, if the electric hydraulic cylinder 6 continues to operate, it can drive the rotating plate 8 to pull the frame 5 to slide up and down to achieve height adjustment, and the lower slider 4 slides in the vertical slide 3 to effectively stabilize the height adjustment; S4: When the frame 5 rotates from the horizontal to the vertical state, the sliding of the slide plate 13 will also push the top block 17 to pass through the second socket 16 and extend into the slot 9, thereby driving the sliding contact with the inclined surface of the slide frame 10, so that the slide frame 10 stored in the slot 9 is ejected from the slot 9, and then the servo motor 1001 can be controlled to run, thereby driving the bidirectional screw rod 1002 to rotate, thereby making the guide blocks 1003 on the front and rear sides approach each other, and driving the second rotating plate 1004 to rotate, so as to drive the clamping plate 1005, so that the left and right sides The clamping plates 1005 in the side sliding frame 10 can be close to each other to clamp the frame on the middle support platform 1 firmly. At the same time, due to the clamping conflict between the clamping plates 1005 and the frame, there is a reaction force, so that the limiting slider 1007 can be tightly contacted with the limiting slide rail 1008 on each side. Even if there is no conflict between the top block 17 and the sliding frame 10, the sliding frame 10 will not fall due to the squeezing conflict between the limiting slider 1007 and the limiting slide rail 1008, and the conflict between the lower end surface of the clamping plate 1005 and the upper end surface of the support platform 1. S5: When the frame 5 is adjusted to a vertical state, the turntable 21 can be driven to rotate by controlling the operation of the driving motor 20. At the same time, the distance between the transverse electric slide rail 2201 and the middle frame can be adjusted by controlling the extension and contraction of the electric cylinder 22, so that the side panel of the car clamped by the side panel claw 2213 can be driven to rotate in the left and right directions, and the distance from the middle frame can be adjusted. The transverse electric slide rail 2201 can also be controlled to drive the electric slider 1 2202 to move, so as to adjust the front and rear positions of the support frame 2203, so as to further adjust the front and rear positions of the clamped frame. At the same time, the two electric sliders 2205 in the front or rear vertical electric slide rail 2204 can be controlled to approach or move away from each other, so as to tilt the front end or rear end of the clamped side panel of the car toward the middle frame, so as to gradually fit the clamped side panel of the car with the middle frame or the side panel of the vehicle to be repaired, and then welding can be performed by an existing welding robot or manually.

Claims

1. A vehicle side panel positioning welding mechanism, comprising a support platform (1), the left and right sides of the support platform (1) are fixedly connected to limit boxes (2), the front and rear ends of each limit box (2) are fixedly connected to vertical slideways (3), the upper and lower sides of each vertical slideway (3) are respectively slidably connected to a lower slider (4) and an upper slider (7), a frame (5) is rotatably connected between the front and rear lower sliders (4) on the same left and right sides, and an electric hydraulic cylinder (6) is embedded through the upper end of the vertical slideway (3), characterized in that: The output end of the lower side of the electric hydraulic cylinder (6) is fixedly connected to the upper slider (7); a rotating plate (8) is rotatably connected between the upper sliders (7) on the front and rear sides of each frame (5); a groove (9) is provided on the left and right sides of the upper end surface of the support platform (1); a sliding frame (10) is slidably connected in the groove (9); a frame positioning mechanism is installed in the sliding frame (10); a driving motor (20) is installed on the inner walls of the front and rear sides of the frame (5); and a vehicle side panel clamping mechanism is installed between the driving motors (20) on the front and rear sides; A touch plate (11) is fixedly connected to the inner wall of the frame (5) on one side close to the support platform (1); a socket (12) is provided between the front and rear ends of each of the limit boxes (2) and the vertical slideway (3) on one side thereof; a slide plate (13) is slidably connected to the inside of the limit box (2); and a stop plate (15) is fixedly connected to the side of the slide plate (13) away from the support platform (1); the stop plate (15) passes through the limit box (2) and extends to the outside thereof, and is slidably connected to the touch plate (11) at the extended end; an inclined block (1501) is fixedly connected to the upper end surface of the extended end of the stop plate (15); and the other end of the slide plate (13) is fixedly connected to the inner wall of the limit box (2). A spring (14) is connected to the slide plate (13), and one end surface of the slide plate (13) connected to the spring (14) is also fixedly connected to a top block (17). A plurality of second sockets (16) are provided between the groove body (9) and the limit box (2) on one side thereof. Each of the top blocks (17) is arranged corresponding to the second socket (16) on one side thereof, and slides through the second socket (16) and extends into the groove body (9) to be slidably connected with the slide frame (10). The front and rear ends of the slide plate (13) are fixedly connected to the limit blocks (19). A limit groove (18) is provided on one side of each lower slide block (4) close to the support platform (1), and the limit blocks (19) are inserted in cooperation with the limit groove (18) for limiting.

2. The automobile side panel positioning welding mechanism according to claim 1, characterized in that: The touch panels (11) on both sides are fixedly connected to the front and rear inner walls of the frame (5) close to the support platform (1), the upper end surface of the touch panel (11) is slidably abutted against the extended end of the abutment plate (15) on the outside of the limit box (2), and the frame (5) is slidably connected with the inclined surface of the inclined block (1501).

3. The automobile side panel positioning welding mechanism according to claim 2, characterized in that: Each of the sockets (12) penetrates a side surface of the vertical slideway (3) and the limit box (2) that is close to each other, and the limit block (19) slides through the socket (12) and cooperates with the limit groove (18) to be inserted and limited.

4. The automobile side panel positioning welding mechanism according to claim 3, characterized in that: A plurality of springs (14) and top blocks (17) are fixedly connected in a linear array on each of the slide plates (13), and the springs (14) and top blocks (17) are arranged in an alternating manner.

5. The automobile side panel positioning welding mechanism according to claim 1, characterized in that: The frame positioning mechanism comprises a servo motor 1 (1001), a bidirectional screw rod 1 (1002), and a guide block (1003). The inner walls of the front and rear sides of each slide frame (10) are fixedly mounted with a servo motor 1 (1001). The output ends of the servo motors 1 (1001) on the front and rear sides are directly and fixedly connected to the bidirectional screw rod 1 (1002) on one side close to each other. The threads of the outer side surfaces of the front and rear ends of the bidirectional screw rod 1 (1002) are arranged in opposite directions, and the guide blocks (1003) are symmetrically sleeved. The guide blocks (1003) are limitedly slidably connected to the inner wall of the slide frame (10). The ends of the guide blocks (1003) on the front and rear sides close to each other are rotatably connected to a rotating plate 2 (1004). The ends of the front and rear rotating plates 2 (1004) on the same left and right sides close to each other are connected to a clamping plate (1005).

6. The automobile side panel positioning welding mechanism according to claim 5, characterized in that: The front and rear ends of the clamping plate (1005) are respectively rotatably connected to the rotating plates (1004) on the front and rear sides, and the side of the clamping plate (1005) close to the support platform (1) is also fixedly connected to a rubber pad (1006). The end surface of each sliding frame (10) close to the socket (16) on one side is inclined and cooperates with the top block (17) to slide against each other.

7. The automobile side panel positioning welding mechanism according to claim 6, characterized in that: The front and rear ends of the slide frame (10) are fixedly connected to limit slide blocks (1007), the front and rear inner walls of the trough body (9) are provided with limit slide rails (1008), and the limit slide blocks (1007) are slidably connected in the limit slide rails (1008) on each side.

8. The automobile side panel positioning welding mechanism according to claim 1, characterized in that: The automobile side panel clamping mechanism comprises a rotating plate platform (21), an electric cylinder (22), and a transverse electric slide rail (2201); the output ends of the driving motors (20) on the front and rear sides close to each other are commonly fixedly connected to the rotating plate platform (21); a plurality of electric cylinders (22) are embedded in the rotating plate platform (21); the output ends on the upper sides of the electric cylinders (22) are commonly fixedly connected to the transverse electric slide rail (2201); an electric slider 1 (2202) is slidably connected in the transverse electric slide rail (2201); a support frame (2203) is fixedly installed on the upper end of the electric slider 1 (2202); and the front and rear ends of the support frame (2203) are fixedly connected to the vertical electric slide rail (2204); the left and right ends of each vertical electric slide rail (2204) are slidably connected to the electric slider 2 (2205); and the upper end of each electric slider 2 (2205) is rotatably connected to the rotating plate 3 (22 06), a hinge seat (2207) is rotatably connected between the two left and right rotating plates (2206) on the same side of the front and rear, and the hinge seats (2207) on the front and rear sides are rotatably connected to the seat plate (2208) through a pin shaft on the side close to each other, and a servo motor (2209) is fixedly installed on both sides of the upper end of the seat plate (2208), and a bidirectional screw rod (2210) is fixedly connected between the output ends of the servo motor (2209) on the front and rear sides on the side close to each other, and a guide slide bar (2211) is fixed on the left and right sides of the bidirectional screw rod (2210), and the outer side surfaces of the front and rear ends of the bidirectional screw rod (2210) are screwed in opposite directions, and are respectively threadedly sleeved with sleeve plates (2212), and the upper end of each sleeve plate (2212) is fixedly connected with a side enclosure claw (2213), and the left and right ends of the sleeve plate (2212) are slidably sleeved on the outer side surfaces of the guide slide bars (2211) on both sides.

9. The automobile side panel positioning welding mechanism according to claim 8, characterized in that: The seat plate (2208) and the front and rear side hinged seats (2207) are both connected in a front-to-rear pitching and rotating manner.

10. A process for the positioning welding mechanism of a vehicle side panel according to any one of claims 1 to 9, characterized in that: The following steps are involved: S1: First, the vehicle to be repaired is driven onto the support platform (1), or the vehicle frame is moved onto the support platform (1), and then the side panel of the vehicle to be welded is moved into the frame (5) and adjusted in position, and then the second servo motor (2209) is started to drive the second bidirectional screw rod (2210) to rotate, thereby driving the sleeve plates (2212) and the side panel clamping claws (2213) on the front and rear sides to approach each other, so that the side panel B-pillar of the vehicle is clamped by the side panel clamping claws (2213); S2: Control the electric hydraulic cylinder (6) to retract, and pull the upper slider (7) to slide upward in the vertical slideway (3), thereby driving the frame (5) to rotate around the rotation connection with the lower slider (4) through the rotating plate (8), and as the rotation proceeds, the touch plate (11) fixedly connected to the frame (5) also rotates, and gradually contacts the stop plate (15) extending outside the limit box (2), and pushes the stop plate (15) to drive the slide plate (13) to move in the limit box (2) toward one side of the support platform (1), and compress the spring (14), and the movement of the slide plate (13) will synchronously drive the limit block (19) to gradually disengage from the limit groove (18), thereby canceling the limit on the lower slider (4); S3: When the frame (5) is rotated to a vertical state, the limit block (19) on the lower slider (4) is completely cancelled. At this time, if the electric hydraulic cylinder (6) continues to operate, it can drive the rotating plate (8) to pull the frame (5) to slide up and down, thereby achieving height adjustment. The lower slider (4) slides in the vertical slideway (3), thereby effectively stabilizing the height adjustment. S4: When the frame (5) rotates from the horizontal to the vertical state, the sliding of the slide plate (13) will also push the top block (17) through the second socket (16) and extend into the groove body (9), thereby driving the sliding contact with the inclined surface of the slide frame (10), so that the slide frame (10) stored in the groove body (9) is ejected from the groove body (9), and then the servo motor 1 (1001) can be controlled to operate, thereby driving the bidirectional screw rod 1 (1002) to rotate, thereby making the guide blocks (1003) on the front and rear sides approach each other, and driving the rotating plate 2 (1004) to rotate, so as to drive the clamping plate (1005), so that the left and right The clamping plates (1005) in the sliding frames (10) on both sides can be close to each other to clamp the vehicle frame on the middle support platform (1) firmly. At the same time, due to the clamping and aggression between the clamping plates (1005) and the vehicle frame, a reaction force is generated, so that the limiting slider (1007) can be tightly aggressed with the limiting slide rail (1008) on each side. Even if there is no aggression between the top block (17) and the sliding frame (10), the sliding frame (10) will not fall due to the squeezing and aggression between the limiting slider (1007) and the limiting slide rail (1008), and the aggression between the lower end surface of the clamping plates (1005) and the upper end surface of the support platform (1). S5: When the frame (5) is adjusted to a vertical state, the driving motor (20) is controlled to drive the turntable (21) to rotate, and the electric cylinder (22) is controlled to extend and retract to adjust the distance between the transverse electric slide rail (2201) and the middle frame, thereby driving the side panel of the vehicle clamped by the side panel clamping claw (2213) to rotate in the left and right directions and adjust the distance from the middle frame. The transverse electric slide rail (2201) can also be controlled to drive the electric slider (2202) to move. The front and rear positions of the support frame (2203) are adjusted by movement to further adjust the front and rear positions of the clamped vehicle frame. Meanwhile, the front or rear end of the clamped vehicle side panel can be tilted toward the middle vehicle frame by controlling the two electric sliders (2205) in the front or rear vertical electric slide rails (2204) to move closer or farther away from each other, so as to gradually fit the clamped vehicle side panel with the middle vehicle frame or the vehicle side panel to be repaired, and then welding can be performed by an existing welding robot or manually.

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