Automobile stamping part welding fixture positioning device

Abstract

The invention discloses an automobile stamping part welding fixture positioning device which comprises a first moving assembly, a second moving assembly is slidably mounted on the first moving assembly, the moving directions of the first moving assembly and the second moving assembly are perpendicular to each other, a first moving plate is slidably mounted on the second moving assembly, and a fourth motor is mounted on the first moving plate. A rotating plate is installed at the output end of the fourth motor, third moving assemblies are installed on the two side walls of the rotating plate, a second moving plate is slidably installed on the third moving assemblies, a positioning assembly is installed on the second moving plate, and auxiliary positioning assemblies are installed at the two ends of the rotating plate. According to the stamping part welding device, the position of a stamping part can be adjusted, the position needing to be welded can be more accurately positioned, the stamping part can be conveniently machined, and workers can conveniently mount and dismount the stamping part.

Description

Technical Field

[0001] The invention relates to the technical field of positioning devices, and in particular to a positioning device for a welding fixture of an automobile stamping part. Background Art

[0002] Automotive stamping parts, as the name implies, are metal stamping parts that constitute automotive parts. Among automotive stamping parts, some become automotive parts directly after stamping, while the other parts need to be processed by welding, machining, painting and other processes before they can become automotive parts.

[0003] When welding automotive stamping parts, clamps are needed to fix them. The welding heads of some welding machines are fixed in position. It is difficult to adjust the position of the stamping parts after the traditional clamps clamp them. Therefore, it is impossible to accurately locate the position where welding is required, which is not convenient for processing the stamping parts.

[0004] Therefore, the applicant proposed a positioning device for a welding fixture of an automobile stamping part to solve the above-mentioned problem. Summary of the invention

[0005] In view of the deficiencies in the prior art, the present invention aims to provide a positioning device for a welding fixture of an automobile stamping part.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions:

[0007] A positioning device for a welding fixture for automobile stamping parts comprises a first moving component, a second moving component is slidably mounted on the first moving component, the moving directions of the first moving component and the second moving component are perpendicular to each other, a first moving plate is slidably mounted on the second moving component, a fourth motor is mounted on the first moving plate, a rotating plate is mounted on the output end of the fourth motor, a third moving component is mounted on both side walls of the rotating plate, a second moving plate is slidably mounted on the third moving component, a positioning component is mounted on the second moving plate, and auxiliary positioning components are mounted on both ends of the rotating plate.

[0008] Furthermore, the first movable component includes a first mounting seat, a first slot is formed on the first mounting seat, a first threaded rod is rotatably mounted in the first slot, one end of the first threaded rod passes through the first mounting seat and is connected to an output end of the first motor, a first threaded block is threadedly connected to the first threaded rod, and a second movable component is mounted on the top of the first threaded block.

[0009] Furthermore, the second moving component includes a second mounting seat installed on the top of the first threaded block, the second mounting seat is provided with a second slot, a second threaded rod is rotatably installed in the second slot, one end of the second threaded rod passes through the second mounting seat and is connected to the output end of the second motor, the second threaded block is threadedly connected to the second threaded rod, and the first moving plate is installed on the top of the second threaded block.

[0010] Furthermore, the third movable component includes a third mounting seat installed on the side wall of the rotating plate, the third mounting seat is provided with a third slot, a third threaded rod is rotatably installed in the third slot, one end of the third threaded rod passes through the third mounting seat and is connected to the output end of the third motor, a third threaded block is threadedly connected to the third threaded rod, and a second movable plate is installed on the top of the third threaded block.

[0011] Furthermore, the positioning assembly includes a first cylinder installed on one end of a second movable plate, a vertical pole is installed on the other end of the second movable plate, one end of a connecting rod is rotatably installed on the telescopic end of the first cylinder, a pressure plate is rotatably installed on the other end of the connecting rod, and the top of the vertical pole is rotatably connected to the connecting rod.

[0012] Furthermore, a waist-shaped groove is provided on the connecting rod, and the top of the vertical rod is slidably connected to the waist-shaped groove.

[0013] Furthermore, the auxiliary positioning assembly includes a plurality of slide grooves opened at one end of the rotating plate, a slider is slidably provided in the slide groove, a suction cup is installed on the top of the slider, a first suction tube connected with the suction cup is installed at the bottom of the slider, a spring sleeved on the outer surface of the first suction tube is connected between the bottom of the slider and the bottom of the slide groove, a second suction tube that can cooperate with the first suction tube is opened at the bottom of the slide groove, and a piston is slidably installed in the second suction tube.

[0014] Furthermore, connecting frames are installed at both ends of the bottom of the rotating plate, a second cylinder is installed at the bottom of the connecting frame, the telescopic end of the second cylinder passes through the bottom of the connecting frame and is connected to the cross plate, a plurality of pull rods are installed on the cross plate, and the pull rods extend into the second suction pipe and are connected to the bottom of the piston.

[0015] Compared with the prior art, the present invention provides a positioning device for a welding fixture for automobile stamping parts, which has the following beneficial effects:

[0016] The present invention places the stamping part on a rotating plate, first supports and positions it through an auxiliary positioning component, and can adjust the position of the positioning component according to the size of the stamping part through a third moving component, so that the positioning component can further position and clamp the stamping part. The auxiliary positioning component can realize the adsorption and positioning of the stamping part. Through the setting of the first moving component and the second moving component, the rotating plate can be moved back and forth and left and right, so as to facilitate the adjustment of the position of the stamping part after it is fixed, and can more accurately locate the position where welding is required, so as to facilitate the processing of the stamping part. The rotating plate can be driven to rotate by the fourth motor, so as to facilitate the adjustment of the angle of the stamping part after it is fixed. After the processing is completed, the positioning component releases the positioning clamping, and the auxiliary positioning component can release the adsorption and positioning of the stamping part, so that the staff can remove the processed stamping part, thereby replacing it with a new stamping part for processing, and the staff can install and disassemble the stamping part conveniently. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a front cross-sectional structural schematic diagram of the present invention;

[0018] Figure 2 It is a right side cross-sectional structural schematic diagram of the present invention;

[0019] Figure 3 It is a schematic diagram of the top view of the structure of the present invention;

[0020] Figure 4 It is a right side cross-sectional structural schematic diagram of the auxiliary positioning assembly of the present invention;

[0021] Figure 5 yes Figure 1 A schematic diagram of the enlarged structure at A in the middle;

[0022] Figure 6 yes Figure 3 A schematic diagram of the enlarged structure at B in the middle;

[0023] Figure 7 yes Figure 4 Schematic diagram of the enlarged structure at point C in the middle.

[0024] Markings in the figure: 1, first moving assembly; 11, first mounting seat; 12, first slot; 13, first threaded rod; 14, first motor; 15, first threaded block; 16, first guide rod; 2, second moving assembly; 21, second mounting seat; 22, second slot; 23, second threaded rod; 24, second motor; 25, second threaded block; 26, second guide rod; 3, first moving plate; 4, fourth motor; 5, rotating plate; 6, third moving assembly; 61, third mounting seat; 62, third slot slot; 63, third threaded rod; 64, third motor; 65, third threaded block; 66, third guide rod; 7, second movable plate; 8, positioning assembly; 81, first cylinder; 82, vertical rod; 83, connecting rod; 84, pressure plate; 85, waist-shaped slot; 9, auxiliary positioning assembly; 91, slide slot; 92, slider; 93, suction cup; 94, first suction pipe; 95, spring; 96, second suction pipe; 97, piston; 98, connecting frame; 99, second cylinder; 100, horizontal plate; 101, pull rod. DETAILED DESCRIPTION

[0025] The present invention will be further described below in conjunction with the accompanying drawings and embodiments:

[0026] The standard parts used in the present invention can all be purchased from the market, and special-shaped parts can be customized according to the instructions and the drawings. The specific connection methods of each part adopt conventional means such as mature bolts, rivets, welding, etc. in the prior art. Machinery, parts and equipment all adopt conventional models in the prior art, and the circuit connection adopts the conventional connection method in the prior art, which will not be described in detail here.

[0027] It should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third", and "fourth" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0028] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0029] In the description of the present invention, “plurality” means two or more than two, unless otherwise clearly and specifically defined.

[0030] The embodiment of the present invention provides a positioning device for a welding fixture of an automobile stamping part, referring to Figures 1 to 7 , including a first moving component 1, a second moving component 2 is slidably mounted on the first moving component 1, the moving directions of the first moving component 1 and the second moving component 2 are perpendicular to each other, a first moving plate 3 is slidably mounted on the second moving component 2, a fourth motor 4 is mounted on the first moving plate 3, a rotating plate 5 is mounted on the output end of the fourth motor 4, a third moving component 6 is mounted on both side walls of the rotating plate 5, a second moving plate 7 is slidably mounted on the third moving component 6, a positioning component 8 is mounted on the second moving plate 7, and auxiliary positioning components 9 are mounted on both ends of the rotating plate 5.

[0031] Specifically, the first moving component 1 can drive the rotating plate 5 to move left and right; the second moving component 2 can drive the rotating plate 5 to move forward and backward; the fourth motor 4 can drive the rotating plate 5 to rotate, so as to facilitate the adjustment of the angle of the stamping part after fixation; the position of the positioning component 8 can be adjusted according to the size of the stamping part through the third moving component 6, so as to facilitate the positioning component 8 to position and clamp the stamping part; the stamping part is supported and positioned through the auxiliary positioning component 9; the stamping part is placed on the rotating plate 5; the fourth motor 4 is arranged vertically.

[0032] Reference Figures 1 to 3 In this embodiment, the first moving component 1 includes a first mounting seat 11, a first slot 12 is formed on the first mounting seat 11, a first threaded rod 13 is rotatably mounted in the first slot 12, one end of the first threaded rod 13 passes through the first mounting seat 11 and is connected to the output end of the first motor 14, a first threaded block 15 is threadedly connected to the first threaded rod 13, and a second moving component 2 is mounted on the top of the first threaded block 15.

[0033] Specifically, the first threaded rod 13 is arranged horizontally; the two ends of the first threaded rod 13 are rotatably connected to the first mounting seat 11; the first motor 14 is installed on the side wall of the first mounting seat 11; the first threaded block 15 can move along the length direction of the first slot 12; a first guide rod 16 parallel to the first threaded rod 13 is provided in the first slot 12, and the two ends of the first guide rod 16 are connected to the first mounting seat 11, the first guide rod 16 passes through the first threaded block 15, and the first guide rod 16 and the first threaded block 15 are slidably matched.

[0034] Reference Figures 1 to 3In this embodiment, the second moving component 2 includes a second mounting seat 21 installed on the top of the first threaded block 15, and a second slot 22 is formed on the second mounting seat 21. A second threaded rod 23 is rotatably installed in the second slot 22. One end of the second threaded rod 23 passes through the second mounting seat 21 and is connected to the output end of the second motor 24. A second threaded block 25 is threadedly connected to the second threaded rod 23, and the first moving plate 3 is installed on the top of the second threaded block 25.

[0035] Specifically, the second threaded rod 23 is arranged horizontally; the two ends of the second threaded rod 23 are rotatably connected to the second mounting seat 21; the second motor 24 is installed on the side wall of the second mounting seat 21; the second threaded block 25 can move along the length direction of the second slot 22; a second guide rod 26 parallel to the second threaded rod 23 is provided in the second slot 22, and the two ends of the second guide rod 26 are connected to the second mounting seat 21, the second guide rod 26 passes through the second threaded block 25, and the second guide rod 26 and the second threaded block 25 are slidably matched.

[0036] Reference Figure 1 , Figure 5 and Figure 6 In this embodiment, the third moving component 6 includes a third mounting seat 61 installed on the side wall of the rotating plate 5, and a third slot 62 is opened on the third mounting seat 61. A third threaded rod 63 is rotatably installed in the third slot 62. One end of the third threaded rod 63 passes through the third mounting seat 61 and is connected to the output end of the third motor 64. A third threaded block 65 is threadedly connected to the third threaded rod 63, and a second moving plate 7 is installed on the top of the third threaded block 65.

[0037] Specifically, the third threaded rod 63 is arranged horizontally; the two ends of the third threaded rod 63 are rotatably connected to the third mounting seat 61; the third motor 64 is installed on the side wall of the third mounting seat 61; the third threaded block 65 can move along the length direction of the third slot 62; a third guide rod 66 parallel to the third threaded rod 63 is provided in the third slot 62, and the two ends of the third guide rod 66 are connected to the third mounting seat 61, the third guide rod 66 passes through the third threaded block 65, and the third guide rod 66 and the third threaded block 65 are slidably matched; the third movable assembly 6 can be provided with 2-4 groups. In the present embodiment, the third movable assembly 6 is provided with 2 groups, which are respectively located on the opposite side walls of the rotating plate 5.

[0038] The first motor 14, the second motor 24, the third motor 64 and the fourth motor 4 can all be servo motors that can perform forward and reverse rotation. This is an existing device and will not be described in detail here.

[0039] Reference Figure 1 , Figure 5 and Figure 6In this embodiment, the positioning assembly 8 includes a first cylinder 81 installed at one end of the second movable plate 7, and a vertical rod 82 is installed on the other end of the second movable plate 7. One end of a connecting rod 83 is rotatably installed on the telescopic end of the first cylinder 81, and a pressure plate 84 is rotatably installed on the other end of the connecting rod 83. The top of the vertical rod 82 is rotatably connected to the connecting rod 83.

[0040] Specifically, the vertical rod 82 is installed on one end of the second movable plate 7 close to the rotating plate 5, and the first cylinder 81 is installed on the end of the second movable plate 7 away from the rotating plate 5; the top of the telescopic end of the first cylinder 81 is hinged to one end of the connecting rod 83; the other end of the connecting rod 83 is hinged to the top of the pressing plate 84, and the pressing plate 84 is affected by gravity so that the bottom of the pressing plate 84 is always in a parallel state. A rubber pad is installed at the bottom of the pressing plate 84. When the stamping parts are positioned and clamped, the rubber pad is used to avoid damage to the stamping parts, and the contact force can be increased to avoid movement of the stamping parts during processing; a connecting shaft is provided at the top of the vertical rod 82, and the connecting shaft is rotatably connected to the connecting rod 83; the positioning assembly 8 can be provided with 2-4 groups. In the present embodiment, the positioning assembly 8 is provided with 2 groups.

[0041] Reference Figure 5 In this embodiment, a waist-shaped groove 85 is provided on the connecting rod 83, and the top of the vertical rod 82 is slidably connected to the waist-shaped groove 85.

[0042] Specifically, the connecting shaft at the top of the vertical rod 82 is located in the waist-shaped groove 85, and the connecting shaft is slidably connected to the waist-shaped groove 85 to avoid interference with the vertical rod 82 when the connecting rod 83 rotates.

[0043] Reference Figure 4 and Figure 7 In the present embodiment, the auxiliary positioning assembly 9 comprises a plurality of slide grooves 91 provided at one end of the rotating plate 5, a slider 92 is slidably provided in the slide groove 91, a suction cup 93 is installed on the top of the slider 92, a first suction pipe 94 connected with the suction cup 93 is installed at the bottom of the slider 92, a spring 95 sleeved on the outer surface of the first suction pipe 94 is connected between the bottom of the slider 92 and the bottom of the slide groove 91, a second suction pipe 96 capable of cooperating with the first suction pipe 94 is provided at the bottom of the slide groove 91, a piston 97 is slidably installed in the second suction pipe 96; the auxiliary positioning assembly 9 can be provided with 2-4 groups, in the present embodiment, the auxiliary positioning assembly 9 is provided with 2 groups, which are respectively located at the two ends of the rotating plate 5.

[0044] Specifically, there is a gap between the slider 92 and the slide groove 91, and the slider 92 can move up and down along the slide groove 91; the lower diameter of the first suction pipe 94 is smaller than the upper diameter, and the longitudinal section is T-shaped. The lower part of the first suction pipe 94 can be inserted into the second suction pipe 96, and the upper part of the second suction pipe 96 is T-shaped. When the lower part of the first suction pipe 94 is inserted into the second suction pipe 96, there is a gap between the lower part of the first suction pipe 94 and the inner wall of the second suction pipe 96, and a sealing ring is installed on the top of the second suction pipe 96. When the lower part of the first suction pipe 94 is fully inserted into the second suction pipe 96, the first suction pipe 94 is squeezed on the sealing ring to avoid air leakage; the piston 97 is sealed and connected to the second suction pipe 96; after the stamping part is positioned and clamped, the top surface of the slider 92 can be flush with the top surface of the rotating plate 5. At this time, the lower part of the first suction pipe 94 is fully inserted into the second suction pipe 96.

[0045] Reference Figure 2 , Figure 4 and Figure 7 In this embodiment, connecting frames 98 are installed at both ends of the bottom of the rotating plate 5, and a second cylinder 99 is installed at the bottom of the connecting frame 98. The telescopic end of the second cylinder 99 passes through the bottom of the connecting frame 98 and is connected to the horizontal plate 100. A plurality of pull rods 101 are installed on the horizontal plate 100. The pull rods 101 extend into the second suction pipe 96 and are connected to the bottom of the piston 97.

[0046] Specifically, the connecting frame 98 is U-shaped; the telescopic end of the second cylinder 99 is slidably connected to the connecting frame 98; the number of pull rods 101 and the slide grooves 91 corresponds one to one, and similarly, the number of pull rods 101 and the second suction pipes 96 also corresponds one to one; the pull rod 101 is slidably connected to the rotating plate 5.

[0047] In the present embodiment, the first motor 14, the second motor 24, the third motor 64, the fourth motor 4, the first cylinder 81 and the second cylinder 99 are all existing devices and will not be described in detail herein.

[0048] Working principle: When in use, the stamping part is placed on the rotating plate 5, and the stamping part is supported and positioned by the slider 92. According to the size of the stamping part, the third motor 64 is started, and the third motor 64 drives the third threaded rod 63 to rotate, and the third threaded rod 63 drives the third threaded block 65 to move, thereby driving the second movable plate 7 to move, and adjusting the position of the positioning assembly 8, so that the positioning assembly 8 can further position and clamp the stamping part, and the first cylinder 81 is extended to drive the connecting rod 83 to rotate, so that the pressing plate 84 positions and clamps the stamping part, so that the slider 92 is further lowered, so that the lower part of the first suction pipe 94 is completely inserted into the second suction pipe 96, and the spring 95 is in a compressed state, and then, the second cylinder 99 is shortened to drive the cross plate 100 to descend, thereby driving the pull rod 101 and the piston 97 to descend, and sucking the gas in the first suction pipe 94 and the second suction pipe 96, so that the suction cup 93 can adsorb the stamping part, further realize the positioning of the stamping part, and facilitate subsequent processing;

[0049] By starting the first motor 14, the first motor 14 drives the first threaded rod 13 to rotate, and the first threaded rod 13 drives the first threaded block 15 to move, thereby driving the second mounting seat 21 to move, and finally driving the rotating plate 5 and the stamping part to move left and right;

[0050] By starting the second motor 24, the second motor 24 drives the second threaded rod 23 to rotate, and the second threaded rod 23 drives the second threaded block 25 to move, thereby driving the first moving plate 3 to move, and finally driving the rotating plate 5 and the stamping part to move forward and backward;

[0051] The fourth motor 4 can drive the rotating plate 5 to rotate, so as to adjust the angle of the fixed punching part;

[0052] The present invention can adjust the position of the stamped part after being fixed, and can more accurately locate the position where welding is required, so as to facilitate the processing of the stamped part.

[0053] After the processing is completed, the first cylinder 81 is shortened to drive the connecting rod 83 to rotate, so that the pressure plate 84 releases the positioning clamp on the stamping part. At the same time, the elastic force of the spring 95 lifts the slider 92, so that the lower part of the first suction tube 94 and the second suction tube 96 are separated and staggered, thereby releasing the adsorption force of the suction cup 93 on the stamping part. At this time, the second cylinder 99 extends and returns to the initial position, which makes it convenient for the staff to remove the processed stamping parts and replace them with new stamping parts for processing.

[0054] The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field.

[0055] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the scope of protection of the invention. Obviously, the described embodiments are only some embodiments of the present invention, rather than all embodiments. Based on these embodiments, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention. Although the present invention has been described in detail with reference to the above embodiments, ordinary technicians in this field can still combine, add, delete or make other adjustments to the features in the various embodiments of the present invention according to the circumstances without conflict, without making creative work, so as to obtain different other technical solutions that do not deviate from the concept of the present invention in essence, and these technical solutions also belong to the scope of protection of the present invention.

Claims

1. A positioning device for a welding fixture for automobile stamping parts, characterized in that: The invention comprises a first moving component (1), a second moving component (2) is slidably mounted on the first moving component (1), the moving directions of the first moving component (1) and the second moving component (2) are perpendicular to each other, a first moving plate (3) is slidably mounted on the second moving component (2), a fourth motor (4) is mounted on the first moving plate (3), a rotating plate (5) is mounted on the output end of the fourth motor (4), a third moving component (6) is mounted on both side walls of the rotating plate (5), a second moving plate (7) is slidably mounted on the third moving component (6), a positioning component (8) is mounted on the second moving plate (7), and auxiliary positioning components (9) are mounted on both ends of the rotating plate (5).

2. The automobile stamping parts welding fixture positioning device according to claim 1 is characterized in that: The first moving component (1) comprises a first mounting seat (11), the first mounting seat (11) is provided with a first slot (12), a first threaded rod (13) is rotatably mounted in the first slot (12), one end of the first threaded rod (13) passes through the first mounting seat (11) and is connected to the output end of the first motor (14), a first threaded block (15) is threadedly connected to the first threaded rod (13), and a second moving component (2) is mounted on the top of the first threaded block (15).

3. The automobile stamping parts welding fixture positioning device according to claim 2 is characterized in that: The second moving assembly (2) comprises a second mounting seat (21) mounted on the top of the first threaded block (15); a second slot (22) is provided on the second mounting seat (21); a second threaded rod (23) is rotatably mounted in the second slot (22); one end of the second threaded rod (23) passes through the second mounting seat (21) and is connected to the output end of the second motor (24); a second threaded block (25) is threadedly connected to the second threaded rod (23); and the first moving plate (3) is mounted on the top of the second threaded block (25).

4. The automobile stamping parts welding fixture positioning device according to claim 1, characterized in that: The third moving assembly (6) comprises a third mounting seat (61) mounted on the side wall of the rotating plate (5); a third slot (62) is provided on the third mounting seat (61); a third threaded rod (63) is rotatably mounted in the third slot (62); one end of the third threaded rod (63) passes through the third mounting seat (61) and is connected to the output end of the third motor (64); a third threaded block (65) is threadedly connected to the third threaded rod (63); and a second moving plate (7) is mounted on the top of the third threaded block (65).

5. The automobile stamping parts welding fixture positioning device according to claim 4 is characterized in that: The positioning assembly (8) comprises a first cylinder (81) mounted on one end of a second movable plate (7); a vertical rod (82) is mounted on the other end of the second movable plate (7); one end of a connecting rod (83) is rotatably mounted on the telescopic end of the first cylinder (81); a pressure plate (84) is rotatably mounted on the other end of the connecting rod (83); and the top of the vertical rod (82) is rotatably connected to the connecting rod (83).

6. The automobile stamping parts welding fixture positioning device according to claim 5, characterized in that: The connecting rod (83) is provided with a waist-shaped groove (85), and the top of the vertical rod (82) is slidably connected to the waist-shaped groove (85).

7. The automobile stamping parts welding fixture positioning device according to claim 1, characterized in that: The auxiliary positioning assembly (9) comprises a plurality of slide grooves (91) provided at one end of the rotating plate (5), a slider (92) being slidably provided in the slide groove (91), a suction cup (93) being installed on the top of the slider (92), a first suction pipe (94) being installed at the bottom of the slider (92) and being connected to the suction cup (93), a spring (95) being sleeved on the outer surface of the first suction pipe (94) being connected between the bottom of the slider (92) and the bottom of the slide groove (91), a second suction pipe (96) being capable of cooperating with the first suction pipe (94) being provided at the bottom of the slide groove (91), a piston (97) being slidably installed in the second suction pipe (96).

8. The automobile stamping parts welding fixture positioning device according to claim 7, characterized in that: Connecting frames (98) are installed at both ends of the bottom of the rotating plate (5), and a second cylinder (99) is installed at the bottom of the connecting frame (98). The telescopic end of the second cylinder (99) passes through the bottom of the connecting frame (98) and is connected to the horizontal plate (100). A plurality of pull rods (101) are installed on the horizontal plate (100), and the pull rods (101) extend into the second suction pipe (96) and are connected to the bottom of the piston (97).

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