Welding fixing tool equipment for automobile parts

Abstract

The invention belongs to the field of intelligent welding tool equipment, and provides welding fixing tool equipment for automobile parts, which comprises a base, a telescopic device, a fixing plate, a welding clamp, a ball body and a supporting seat, the supporting seat is provided with a spherical groove with an upward opening, the ball is rotatably arranged in the spherical groove, the top of the ball is fixedly connected with a connecting column, and the connecting column penetrates out of the opening of the spherical groove and is fixedly connected with the bottom of the fixing plate. The number of the telescopic devices is four, and the telescopic devices are distributed on the four sides of the welding clamp around the ball. The four telescopic devices are used for stretching out and drawing back to adjust the angle of the welding clamp. The four telescopic devices act at the same time, so that the inclination angle of the welding clamp in each direction is adjusted to meet the welding posture requirement of the robot, the robot can weld more positions, and the situation that the robot cannot work due to the insufficient working radius is avoided.

Description

Technical Field

[0001] The invention belongs to the field of intelligent welding tooling equipment, and in particular relates to a welding fixing tooling equipment for automobile parts. Background Art

[0002] In the field of automobile body-in-white, industrial robot welding is an important automated welding method. With the rapid development of the automobile industry, the requirements for the welding accuracy and efficiency of automobile body-in-white are getting higher and higher. Traditional manual welding methods can no longer meet the needs of modern automobile manufacturing, so industrial robot welding technology came into being.

[0003] Industrial robot welding technology has the advantages of high efficiency, high precision and good stability. It can achieve continuous operation and reduce the impact of human factors on welding quality, thereby improving the production efficiency and quality of automobile body-in-white. In addition, industrial robot welding also has good flexibility and adaptability, and can meet the needs of different models and different welding positions.

[0004] In the process of automobile body-in-white welding, welding fixture equipment is one of the key factors to ensure welding quality, usually called welding fixture. Welding fixture equipment can fix automobile parts to ensure the accuracy and stability during welding. Traditional welding fixture equipment usually adopts mechanical fixtures, whose position angles are fixed. Workers often simulate the robot trajectory in the simulation software and then design the welding fixture to ensure that the robot's posture can be welded to each welding position. However, due to the accuracy problem of on-site construction, the robot's posture cannot meet every welding position during actual welding, which requires fine-tuning of the welding fixture or robot position on site, which is very inefficient; or when the welding position of the workpiece needs to be changed on site, the position and angle of the welding fixture are also required to adapt to the robot's posture range. The current fixed welding fixture cannot meet this requirement. Therefore, the welding fixture in the prior art cannot meet the high efficiency and flexibility requirements of modern automobile manufacturing. If a function that can adjust the tilt angle of the welding fixture can be designed, it can greatly reduce the workload of on-site staff, facilitate robot debugging, and meet the robot's posture trajectory requirements. Summary of the invention

[0005] In order to solve the above technical problems, the present invention provides a welding and fixing tooling equipment for automobile parts to solve the problems in the prior art. The technical solution adopted by the present invention is: A welding fixture for automobile parts, comprising: a base, a telescopic device, a fixing plate, a welding fixture, a sphere and a supporting seat; The welding fixture is arranged above the base, the bottom of the telescopic device is movably connected to the top of the base, the top of the telescopic device is connected to the fixing plate, and the welding fixture is arranged on the fixing plate; The support seat is fixedly connected to the top of the base, the support seat is provided with a spherical groove with an opening facing upward, the ball is rotatably arranged in the spherical groove, the top of the ball is fixedly connected to the connecting column, the connecting column passes through the opening of the spherical groove and is fixedly connected to the bottom of the fixing plate; The four telescopic devices are provided and distributed on four sides of the welding fixture around the sphere; the four telescopic devices are used to telescope to adjust the angle of the welding fixture.

[0006] Furthermore, it also includes a lifting plate, a sliding limit tube, a driving shaft, a motor and a connecting mechanism; the connecting mechanism includes a telescopic rod, a vertical rod, a sliding rod and a spring; The top of the telescopic device is movably connected to the bottom of the lifting plate, and the lifting plate is located below the fixed plate; The support seat is provided with a through hole, the through hole is located below the spherical groove and connected to the spherical groove, the top of the sliding limit tube is located in the through hole, and the bottom of the sliding limit tube can slide through the through hole and the base in sequence; the bottom of the sliding limit tube is located below the base; The sliding rod can be slidably passed through the base, the bottom of the sliding rod is connected to one end of the telescopic rod, and the other end of the telescopic rod is connected to the bottom side of the sliding limit tube; a spring is sleeved on the top of the sliding rod, the top of the sliding rod is fixedly connected to the limit part, and the top and bottom of the spring act on the limit part and the base respectively; the middle part of the telescopic rod is rotatably connected to the bottom of the vertical rod, and the top of the vertical rod is fixedly connected to the bottom of the base; The sphere is provided with a spline hole, and the outer side surface of the top of the sliding limit tube is provided with an external spline adapted to the spline hole; when the fixed plate is arranged horizontally, the opening of the spline hole is vertically downward and coaxially distributed with the sliding limit tube, and the four telescopic devices are used to simultaneously move the horizontally arranged lifting plate downward, so that the lifting plate pushes the sliding rod to move downward, and the top of the sliding limit tube is raised to the spline hole through the telescopic rod; The bottom of the sliding limit tube is sleeved on the driving shaft, and the driving shaft is connected to the motor to drive the sliding limit tube to rotate, thereby rotating and adjusting the angle of the welding fixture.

[0007] Furthermore, the bottom of the base is fixedly connected to a moving plate via supporting legs, and the motor is mounted on the moving plate.

[0008] Furthermore, the telescopic rod comprises a rod body, a first rod head and a second rod head; The middle part of the rod body is rotatably connected to the bottom of the vertical rod, blind holes are provided at both ends of the rod body, springs are provided in the two blind holes, the first rod head and the second rod head are respectively slidably inserted in the two blind holes and respectively abut against the springs, the end of the first rod head is rotatably connected to the bottom of the sliding rod, and the end of the second rod head is rotatably connected to a rotating ring, and the rotating ring is slidably sleeved on the bottom of the sliding limit tube.

[0009] Further, a circular hollow portion is provided on the lifting plate, the connecting column passes through the hollow portion, the bottom of the welding fixture is detachably connected to the arc-shaped limit plate, the fixed plate is provided with an arc-shaped hole adapted to the arc-shaped limit plate, the arc-shaped limit plate is inserted into the arc-shaped hole, and the bottom of the arc-shaped limit plate passes through the arc-shaped hole; The telescopic device is used to push the lifting plate to move upward so that the outer side surface of the bottom of the arc-shaped limiting plate fits the inner side surface of the hollow portion.

[0010] Further, it also includes a wedge ring, a locking rod, a return spring and a protrusion; The fixing plate is circular, and a radial hole communicating with the arc-shaped hole is provided on the outer side of the fixing plate. The locking rod is slidably arranged in the radial hole. The outer end of the locking rod extends out of the radial hole. The return spring is arranged in the radial hole. The return spring abuts against the protrusion. The protrusion is fixedly connected to the locking rod. The return spring is used to push the locking rod outward. The outer side surface of the arc-shaped limiting plate is provided with a limiting hole adapted to the locking rod, the top of the lifting plate is fixedly connected to the wedge ring, and the inner side surface of the wedge ring is wedge-shaped; The wedge ring is used for when the lifting plate moves upward, the inner wedge surface of the wedge ring abuts against the outer end of the locking rod, so that the inner end of the locking rod is inserted into the limiting hole; When the lifting plate is at the lowest height, the wedge ring and the fixing plate are spaced apart.

[0011] Furthermore, the inner end of the radial hole is threadedly connected to a sleeve, the sleeve and the return spring are both sleeved on the locking rod, and two ends of the return spring act on the sleeve and the protrusion respectively.

[0012] The present invention has the following beneficial effects: the present invention can adjust the inclination angles of the welding fixture in various directions through the simultaneous action of four telescopic devices to adapt to the welding posture requirements of the robot, so that the robot can weld to more positions and avoid the situation where the robot cannot work due to insufficient working radius. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram when the welding fixture is tilted; Figure 3 It is a schematic diagram of the welding fixture when it rotates; Figure 4 yes Figure 3 The enlarged schematic diagram at A in the middle; Figure 5 yes Figure 3 The enlarged schematic diagram of point B in the middle; Figure 6 It is a schematic diagram of the fixed plate when viewed from above. DETAILED DESCRIPTION

[0014] The following will be combined with the embodiments of the present invention Figure 1-Figure 6 , the technical solutions in the embodiments of the present invention are described clearly and completely. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Unless otherwise specified, the technical means used in the embodiments are conventional means well known to those skilled in the art.

[0015] like Figure 1 , Figure 2 , a welding and fixing tooling equipment for automobile parts, comprising: a base 1, a telescopic device 2, a fixing plate 4, a welding fixture 5, a sphere 6 and a supporting seat 7; The welding fixture 5 is arranged above the base 1, the bottom of the telescopic device 2 is movably connected to the top of the base 1, the top of the telescopic device 2 is connected to the fixing plate 4, and the welding fixture 5 is arranged on the fixing plate 4; The support seat 7 is fixedly connected to the top of the base 1, and the support seat 7 is provided with a spherical groove with an opening facing upward, and the ball 6 is rotatably arranged in the spherical groove, and the top of the ball 6 is fixedly connected to the connecting column 601, and the connecting column 601 passes through the opening of the spherical groove and is fixedly connected to the bottom of the fixing plate 4; Four telescopic devices 2 are provided and distributed on four sides of the welding fixture 5 around the sphere 6 ; the four telescopic devices 2 are used to telescope to adjust the angle of the welding fixture 5 .

[0016] Specifically, the welding fixture 5 is a prior art, and can be a variety of welding equipment such as automatic semi-automatic arc welding, plasma arc welding, laser welding, spot welding, etc. A robot is arranged next to the welding fixture 5, and a corresponding welding gun can be installed on the tool end of the robot. The present invention is applicable to industrial robot welding scenarios in automobile production.

[0017] The bottom plate of the welding fixture 5 is square, and it can be lifted by a sling and placed on the fixed plate 4. The telescopic device 2 is a prior art, such as a cylinder, a hydraulic cylinder, an electric cylinder and other components that realize linear telescopic function, and can also be a manual device such as a jack. Four telescopic devices 2 are distributed on the four sides of the welding fixture 5, that is, the four side directions of the welding fixture 5. The ball 6 can be universally rotated in the support seat 7.

[0018] The present invention can adjust the inclination angles of the welding fixture 5 in various directions by operating the four telescopic devices 2 simultaneously to adapt to the welding posture requirements of the robot, so that the robot can weld to more positions and avoid the situation where the robot cannot work due to insufficient working radius. The present invention can adjust the angle of the welding fixture 5 in real time during the welding process, and can also adjust the angle of the welding fixture 5 before welding and then perform welding.

[0019] For example Figure 2 The welding fixture 5 is adjusted to the tilting device so that the height of the welding fixture 5 away from the robot side is higher, so that the distance from the robot is closer, which can make the robot welding smoother and also facilitate the staff to debug the welding trajectory of the robot.

[0020] In addition, lubricating grease, balls, etc. can be arranged between the ball 6 and the spherical groove to achieve smooth rotation of the ball 6.

[0021] Furthermore, it also includes a lifting plate 3, a sliding limit tube 8, a driving shaft 9, a motor 10 and a connecting mechanism; the connecting mechanism includes a telescopic rod 12, a vertical rod 13, a sliding rod 14 and a spring 15; The top of the telescopic device 2 is movably connected to the bottom of the lifting plate 3, and the lifting plate 3 is located below the fixed plate 4; The support seat 7 is provided with a through hole, the through hole is located below the spherical groove and connected to the spherical groove, the top of the sliding limit tube 8 is located in the through hole, and the bottom of the sliding limit tube 8 can slide through the through hole and the base 1 in sequence; the bottom of the sliding limit tube 8 is located below the base 1; The base 1 can slide through the sliding rod 14, the bottom of the sliding rod 14 is connected to one end of the telescopic rod 12, and the other end of the telescopic rod 12 is connected to the bottom side of the sliding limit tube 8; the top of the sliding rod 14 is sleeved with a spring 15, the top of the sliding rod 14 is fixedly connected to the limit part, and the top and bottom of the spring 15 act on the limit part and the base 1 respectively; the middle part of the telescopic rod 12 is rotatably connected to the bottom of the vertical rod 13, and the top of the vertical rod 13 is fixedly connected to the bottom of the base 1; The sphere 6 is provided with a spline hole 602, and the top outer side surface of the sliding limit tube 8 is provided with an external spline adapted to the spline hole 602; when the fixed plate 4 is arranged horizontally, the opening of the spline hole 602 is vertically downward and coaxially distributed with the sliding limit tube 8, and the four telescopic devices 2 are used to simultaneously move the horizontally arranged lifting plate 3 downward, so that the lifting plate 3 pushes the sliding rod 14 to move downward, and the top of the sliding limit tube 8 is raised to the spline hole 602 through the telescopic rod 12; The bottom of the sliding limit tube 8 is sleeved on the driving shaft 9 , and the driving shaft 9 is connected to the motor 10 to drive the sliding limit tube 8 to rotate, thereby rotating and adjusting the angle of the welding fixture 5 .

[0022] The axis of the through hole on the support seat 7 is vertical. The sliding limit tube 8 is a hollow structure, and a hole through which the sliding limit tube 8 can pass is set on the base 1. An inner spline is set on the inner wall surface of the sliding limit tube 8, and an outer spline is set on the drive shaft 9. The sliding limit tube 8 and the drive shaft 9 transmit power through the spline and enable the sliding limit tube 8 to slide up and down.

[0023] The present invention can make the welding fixture 5 rotate around the vertical axis of the sphere 6, so as to adjust the rotation angle of the welding fixture 5, and can make different sides of the welding fixture 5 face the robot to facilitate the welding of the robot. Different workpieces can also be loaded on the welding fixture 5, and the workpieces can be welded in sequence by rotating the welding fixture 5. The rotation process of the welding fixture 5 around the vertical axis of the sphere 6 is as follows: The four telescopic devices 2 are reset to their initial state, forming a vertical posture with the same length, as shown in FIG. Figure 1 At this time, the lifting plate 3, the fixing plate 4 and the welding fixture 5 are in a horizontal state, the opening of the spline hole 602 is vertically downward, the spline hole 602 is coaxial with the sliding limit tube 8, and the top of the sliding limit tube 8 is located in the through hole instead of in the spline hole 602.

[0024] Then the four telescopic devices 2 are retracted at the same time, causing the lifting plate 3 to move downward. During this process, the bottom of the lifting plate 3 pushes the sliding rod 14 downward, and the sliding rod 14 pushes the telescopic rod 12 to rotate while moving downward. The end of the telescopic rod 12 connected to the sliding limit tube 8 rises, thereby causing the sliding limit tube 8 to rise, and the top of the sliding limit tube 8 to rise into the spline hole 602. At this time, the motor 10 is started, and the sliding limit tube 8 and the ball 6 are rotated through the drive shaft 9, thereby rotating the welding fixture 5. After the adjustment is completed, the four telescopic devices 2 are extended at the same time and returned to the position where the welding fixture 5 is located. Figure 1 Then the four telescopic devices 2 are separated and extended to adjust the tilt angle of the welding fixture 5 to form Figure 2 working status.

[0025] It should be noted that in Figure 1 In the initial state, the telescopic device 2 has not reached the maximum stroke, that is, the telescopic device 2 can still extend upward. In addition, multiple connecting mechanisms can be arranged around the sliding limit tube 8. The bottom of the lifting plate 3 can be fixedly connected to the pressure rod 302, and the multiple pressure rods 302 correspond to the multiple sliding rods 14 one by one and are coaxially arranged, and the sliding rods 14 are pushed downward by the pressure rods 302. When the lifting plate 3 is tilted, the pressure rods 302 do not interfere with the sliding rods 14.

[0026] Furthermore, the bottom of the base 1 is fixedly connected to the moving plate 11 through supporting legs, and the motor 10 is installed on the moving plate 11 .

[0027] Furthermore, the telescopic rod 12 includes a rod body 121, a first rod head 122 and a second rod head 123; The middle part of the rod body 121 is rotatably connected to the bottom of the vertical rod 13, and blind holes are provided at both ends of the rod body 121. Springs are provided in the two blind holes. The first rod head 122 and the second rod head 123 are respectively slidably inserted in the two blind holes and respectively abut against the springs. The end of the first rod head 122 is rotatably connected to the bottom of the sliding rod 14, and the end of the second rod head 123 is rotatably connected to the rotating ring 124. The rotating ring 124 is slidably sleeved on the bottom of the sliding limit tube 8.

[0028] The spring in the blind hole is in a compressed state, and can provide the telescopic rod 12 with axial freedom during the rotation of the telescopic rod 12, so that the telescopic rod 12 can rotate smoothly. The rotating ring 124 realizes the function of rotation connection, and can be connected to the sliding limit tube 8 through the bearing, so that the sliding limit tube 8 can rotate normally.

[0029] Further, a circular hollow portion 301 is provided on the lifting plate 3, the connecting column 601 passes through the hollow portion 301, the bottom of the welding fixture 5 is detachably connected to the arc-shaped limit plate 501, and an arc-shaped hole adapted to the arc-shaped limit plate 501 is provided on the fixing plate 4, the arc-shaped limit plate 501 is inserted into the arc-shaped hole, and the bottom of the arc-shaped limit plate 501 passes through the arc-shaped hole; The telescopic device 2 is used to push the lifting plate 3 to move upward so that the bottom outer side surface of the arc-shaped limiting plate 501 fits the inner side surface of the hollow portion 301 .

[0030] The lifting plate 3 and the fixing plate 4 are both circular plate structures, while the bottom plate of the welding fixture 5 is a square plate structure. Figure 6 , multiple arc-shaped limit plates 501 are concentrically distributed, and the lifting plate 3, the fixed plate 4, multiple arc-shaped limit plates 501, and the connecting column 601 are all coaxially arranged. When the lifting plate 3 rises to the highest height, that is, Figure 1In the initial state, the top of the lifting plate 3 abuts against the bottom of the fixed plate 4 to provide auxiliary support, and the inner side of the hollow part 301 fits the outer side of the arc-shaped limit plate 501, thereby forming a constraint. When the telescopic device 2 tilts the fixed plate 4, the fixed plate 4 is tilted by the cooperation of the hollow part 301 and the arc-shaped limit plate 501. In addition, the structure in which the arc-shaped limit plate 501 is inserted into the arc-shaped hole can realize the function of circumferential constraint, so that the ball 6 can drive the welding fixture 5 to rotate.

[0031] Furthermore, it also includes a wedge ring 303, a locking rod 401, a return spring 402 and a protrusion 404; The fixing plate 4 is circular, and a radial hole connected to the arc-shaped hole is provided on the outer side of the fixing plate 4. The locking rod 401 is slidably arranged in the radial hole. The outer end of the locking rod 401 extends out of the radial hole. The reset spring 402 is arranged in the radial hole. The reset spring 402 abuts against the protrusion 404. The protrusion 404 is fixedly connected to the locking rod 401. The reset spring 402 is used to push the locking rod 401 outward. The outer side surface of the arc-shaped limiting plate 501 is provided with a limiting hole 405 adapted to the locking rod 401, the top of the lifting plate 3 is fixedly connected to the wedge ring 303, and the inner side surface of the wedge ring 303 is wedge-shaped; The wedge ring 303 is used for when the lifting plate 3 moves upward, the inner wedge surface of the wedge ring 303 abuts against the outer end of the locking rod 401, so that the inner end of the locking rod 401 is inserted into the limiting hole 405; The locking rod 401 is horizontally disposed and located in the radial direction of the fixing plate 4 , and a plurality of locking rods 401 may be disposed around the fixing plate 4 .

[0032] like Figure 3 When the lifting plate 3 is at the lowest height, the wedge ring 303 is spaced apart from the fixed plate 4. At this time, the lifting plate 3 and the fixed plate 4 do not interfere with each other, and the hollow portion 301 enables the lifting plate 3 to avoid the sphere 6. In this state, the return spring 402 pushes the locking rod 401 to move outward, so that the inner end of the locking rod 401 is separated from the limiting hole 405, and the arc-shaped limiting plate 501 can be separated from the fixed plate 4 upward.

[0033] When the lifting plate 3 rises to the highest height, that is, Figure 1 In this process, the wedge-shaped surface on the inner side of the wedge ring 303 abuts against the outer end of the locking rod 401, pushing the locking rod 401 to move inward, so that the inner end thereof enters into the limiting hole 405, thereby constraining the arc limiting plate 501 in the vertical direction. In addition, because the arc limiting plate 501 is clamped in the arc hole, the top of the arc limiting plate 501 is fixedly connected to the bottom plate of the welding fixture 5, so Figure 1In the initial state, the welding fixture 5 is in a locked state, which can prevent the welding fixture 5 from falling or becoming unstable.

[0034] In the present invention, when the lifting plate 3 rises to the highest height, the welding fixture 5 is locked, and the welding fixture 5 can be adjusted to a tilted working state. When the lifting plate 3 falls to the lowest height, the welding fixture 5 is unlocked, and the welding fixture 5 can be lifted upwards for removal, so that different welding fixtures 5 can be replaced conveniently.

[0035] In addition, the outer end of the locking rod 401 refers to the end of the locking rod 401 away from the arc-shaped limiting plate 501, and the bottom plate at the bottom of the welding fixture 5 can be connected to the arc-shaped limiting plate 501 by bolts.

[0036] Furthermore, the inner end of the radial hole is threadedly connected to the sleeve 403, the sleeve 403 and the return spring 402 are both sleeved on the locking rod 401, and the two ends of the return spring 402 act on the sleeve 403 and the protrusion 404 respectively.

[0037] The shaft sleeve 403 has the function of restraining the return spring 402. The protrusion 404 can be a ring-shaped protrusion structure, which is arranged around the locking rod 401. The return spring 402 has a tendency to push the locking rod 401 to move outward. The outer end of the locking rod 401 can be provided with a ball, a roller or other components to facilitate movement with the wedge ring 303.

[0038] The embodiments described above are only descriptions of the preferred modes of the present invention and are not intended to limit the scope of the present invention. Without departing from the design spirit of the present invention, various deformations, modifications, and substitutions made to the technical solutions of the present invention by ordinary technicians in this field should all fall within the protection scope determined by the claims of the present invention.

Claims

1. A welding fixture for automobile parts, characterized in that: include: A base (1), a telescopic device (2), a fixing plate (4), a welding fixture (5), a sphere (6) and a supporting seat (7); The welding fixture (5) is arranged above the base (1), the bottom of the telescopic device (2) is movably connected to the top of the base (1), the top of the telescopic device (2) is connected to the fixing plate (4), and the welding fixture (5) is arranged on the fixing plate (4); The support seat (7) is fixedly connected to the top of the base (1); the support seat (7) is provided with a spherical groove with an opening facing upward; the ball (6) is rotatably arranged in the spherical groove; the top of the ball (6) is fixedly connected to a connecting column (601); the connecting column (601) passes through the opening of the spherical groove and is fixedly connected to the bottom of the fixing plate (4); Four telescopic devices (2) are provided and are distributed around the sphere (6) on four sides of the welding fixture (5); the four telescopic devices (2) are used to telescope to adjust the angle of the welding fixture (5).

2. The welding and fixing tooling equipment for automobile parts according to claim 1 is characterized in that: It also includes a lifting plate (3), a sliding limit tube (8), a driving shaft (9), a motor (10) and a connecting mechanism; the connecting mechanism includes a telescopic rod (12), a vertical rod (13), a sliding rod (14) and a spring (15); The top of the telescopic device (2) is movably connected to the bottom of the lifting plate (3), and the lifting plate (3) is located below the fixed plate (4); The support seat (7) is provided with a through hole, the through hole is located below the spherical groove and is connected to the spherical groove, the top of the sliding limit tube (8) is located in the through hole, and the bottom of the sliding limit tube (8) can slide through the through hole and the base (1) in sequence; the bottom of the sliding limit tube (8) is located below the base (1); The base (1) can slide through the sliding rod (14), the bottom of the sliding rod (14) is connected to one end of the telescopic rod (12), and the other end of the telescopic rod (12) is connected to the bottom side of the sliding limit tube (8); the top of the sliding rod (14) is sleeved with a spring (15), the top of the sliding rod (14) is fixedly connected to the limit part, and the top and bottom of the spring (15) act on the limit part and the base (1) respectively; the middle part of the telescopic rod (12) is rotatably connected to the bottom of the vertical rod (13), and the top of the vertical rod (13) is fixedly connected to the bottom of the base (1); The sphere (6) is provided with a spline hole (602), and the top outer side surface of the sliding limit tube (8) is provided with an external spline that matches the spline hole (602); when the fixed plate (4) is arranged horizontally, the opening of the spline hole (602) is vertically downward and coaxially distributed with the sliding limit tube (8), and the four telescopic devices (2) are used to simultaneously move the horizontally arranged lifting plate (3) downward, so that the lifting plate (3) pushes the sliding rod (14) to move downward, and the top of the sliding limit tube (8) is raised to the inside of the spline hole (602) through the telescopic rod (12); The bottom of the sliding limit tube (8) is sleeved on the driving shaft (9), and the driving shaft (9) is connected to the motor (10) to drive the sliding limit tube (8) to rotate, thereby rotating and adjusting the angle of the welding fixture (5).

3. The welding and fixing tooling equipment for automobile parts according to claim 2 is characterized in that: The bottom of the base (1) is fixedly connected to a moving plate (11) via supporting legs, and the motor (10) is mounted on the moving plate (11).

4. The welding and fixing tooling equipment for automobile parts according to claim 2, characterized in that: The telescopic rod (12) comprises a rod body (121), a first rod head (122) and a second rod head (123); The middle part of the rod body (121) is rotatably connected to the bottom of the vertical rod (13); blind holes are provided at both ends of the rod body (121); springs are provided in the two blind holes; the first rod head (122) and the second rod head (123) are respectively slidably inserted in the two blind holes and respectively abut against the springs; the end of the first rod head (122) is rotatably connected to the bottom of the sliding rod (14); the end of the second rod head (123) is rotatably connected to a rotating ring (124); and the rotating ring (124) is slidably sleeved on the bottom of the sliding limit tube (8).

5. The welding and fixing tooling equipment for automobile parts according to claim 2, characterized in that: The lifting plate (3) is provided with a circular hollow portion (301), the connecting column (601) passes through the hollow portion (301), the bottom of the welding fixture (5) is detachably connected to the arc-shaped limiting plate (501), the fixing plate (4) is provided with an arc-shaped hole adapted to the arc-shaped limiting plate (501), the arc-shaped limiting plate (501) is inserted into the arc-shaped hole, and the bottom of the arc-shaped limiting plate (501) passes through the arc-shaped hole; The telescopic device (2) is used to push the lifting plate (3) to move upward so that the bottom outer side surface of the arc-shaped limiting plate (501) fits the inner side surface of the hollow portion (301).

6. The welding and fixing tooling equipment for automobile parts according to claim 5, characterized in that: It also includes a wedge ring (303), a locking rod (401), a return spring (402) and a protrusion (404); The fixing plate (4) is circular, and a radial hole communicating with the arc-shaped hole is arranged on the outer side surface of the fixing plate (4), the locking rod (401) is slidably arranged in the radial hole, the outer end of the locking rod (401) extends out of the radial hole, the return spring (402) is arranged in the radial hole, the return spring (402) abuts against the protrusion (404), the protrusion (404) is fixedly connected to the locking rod (401), and the return spring (402) is used to push the locking rod (401) outward; The outer side surface of the arc-shaped limiting plate (501) is provided with a limiting hole (405) adapted to the locking rod (401); the top of the lifting plate (3) is fixedly connected to the wedge ring (303); and the inner side surface of the wedge ring (303) is wedge-shaped; The wedge ring (303) is used for when the lifting plate (3) moves upward, the inner wedge surface of the wedge ring (303) abuts against the outer end of the locking rod (401), so that the inner end of the locking rod (401) is inserted into the limiting hole (405); When the lifting plate (3) is at the lowest height, the wedge ring (303) and the fixing plate (4) are spaced apart.

7. The welding and fixing tooling equipment for automobile parts according to claim 5, characterized in that: The inner end of the radial hole is threadedly connected to a shaft sleeve (403); the shaft sleeve (403) and the return spring (402) are both sleeved on the locking rod (401); and two ends of the return spring (402) act on the shaft sleeve (403) and the protruding portion (404) respectively.

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