A spot welding station equipment for automobile production

Abstract

The present invention discloses a spot welding station equipment for automobile production, comprising: at least one first module, the first module is used to set the material to be welded; a second module movably connected to the first module, the first module is selectively located in the second module, the second module is used to install and position the first module; welding equipment for spot welding the material to be welded. Because the second module and the welding equipment can be fixed in place, the program of the welding equipment terminal can use the second module as a reference system, thereby ensuring the uniform position of the zero point in the welding equipment terminal program, which is convenient for program design. When replacing a product, the first module can be directly replaced, and there is no need to purchase and set up welding stations for different products separately, which can effectively reduce production costs.

Description

Technical Field

[0001] The present invention relates to the technical field of spot welding stations, and more particularly to a spot welding station device for automobile production. Background Art

[0002] At present, domestic automobile production requires the use of spot welding stations and universal clamps. However, the clamp mold is fixed during use and is mainly used to fix the "same" automotive structural parts that need to be welded, such as car doors of the same brand and model. However, the parts products, models, and sizes of various brands are different. Therefore, different clamp devices are often required according to different parts, which will increase manufacturing costs and reduce processing efficiency. Therefore, how to make the clamp modular and achieve fast and accurate replacement of the clamp is the technical problem to be solved by the present invention. Summary of the invention

[0003] A series of simplified concepts are introduced in the Summary of the Invention, which will be further described in detail in the Detailed Description of the Invention. The Summary of the Invention does not mean to attempt to define the key features and essential technical features of the claimed technical solution, nor does it mean to attempt to determine the scope of protection of the claimed technical solution.

[0004] To at least partially solve the above problems, the present invention provides a spot welding station equipment for automobile production, comprising:

[0005] At least one first module, the first module is used to set the material to be welded;

[0006] A second module movably connected to the first module, the first module being selectively located in the second module, and the second module being used for installation and positioning of the first module;

[0007] Welding equipment used for spot welding of materials to be welded.

[0008] Preferably, the second module consists of a horizontal limit assembly and a positioning assembly located within the horizontal limit assembly, the first module is located within the horizontal limit assembly and is movably connected to the horizontal limit assembly, and the positioning assembly is selectively connected to the bottom surface of the first module.

[0009] Preferably, the horizontal limiter assembly is composed of three limiter shapes;

[0010] One of the limiting members is normal to the movement direction of the first module and is used to limit the movement position of the first module;

[0011] The other two limiting members are symmetrically arranged to form a channel for the movement of the first module and are used to limit the movement direction of the first module;

[0012] The three limit members are arranged in a C shape.

[0013] Preferably, a first limiting portion is provided on the limiting member of the horizontal limiting assembly opposite to the C-shaped opening, and the first limiting portion limits the first module on a horizontal plane.

[0014] Preferably, the first module is rectangular, a second limiting portion is provided on the first module, the position of the second limiting portion is consistent with the position of the first limiting portion, the first limiting portion and the second limiting portion constitute a limiting unit, and the limiting unit is used to limit the first module on a horizontal plane.

[0015] Preferably, a displacement assembly is provided at the bottom of the first module.

[0016] Preferably, the positioning assembly is composed of at least four lifting devices, which are selectively connected to the bottom surface of the first module through a calibration device, and the calibration device is composed of a first calibration part arranged on the top of the lifting device, and a second calibration part arranged on the bottom surface of the first module, the top surface of the first calibration part is provided with a truncated cone-shaped calibration block, and the bottom surface of the second calibration part is provided with a calibration groove adapted to the calibration block, and the inner diameter of the calibration groove is larger than the maximum diameter of the truncated cone-shaped calibration block.

[0017] Preferably, a third limiting portion is provided on the top surface of the limiting member, and the third limiting portion selectively abuts against the first module, and the third limiting portion is used to limit the first module in the vertical direction.

[0018] Preferably, a first precision calibration device is sleeved on the calibration block, and an annular groove for placing the second precision calibration device is provided on the bottom surface of the second calibration part, and the annular groove is located on the inner wall of the opening of the calibration groove. The first precision calibration device consists of a first ring sleeved on the outer wall of the calibration block, and at least three calibration plates arranged on the first ring, the calibration plate is a plane with an arc, and is attached to the outer wall of the calibration block, and a gap is reserved between two adjacent calibration plates. The second precision calibration device consists of a second ring arranged in the annular groove, and at least three precision calibration blocks arranged on the inner wall of the second ring, and the arc length of the precision calibration block is smaller than the arc length of the gap reserved between the two calibration plates.

[0019] Preferably, the second limiting portion consists of a fixed end connected to the first module by at least two positioning screws, and an adjusting end located inside the fixed end and detachably connected to the fixed end by the two positioning screws, the top surface of the fixed end is provided with at least one mounting hole, the side wall of the fixed end is provided with a movable hole for placing the adjusting end, the mounting hole passes through the movable hole, the adjusting end is provided with at least one positioning groove, the positioning screw passes through the mounting hole and passes through the positioning groove and extends to the bottom of the fixed end.

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

[0021] The design of production-specific equipment is adjusted to the design of the fixture assembly on the first module, which can greatly reduce the workload of equipment design. Because the second module and the welding equipment can be fixed in place, the program of the welding equipment terminal can use the second module as a reference system, thereby ensuring the uniform position of the zero point in the welding equipment terminal program, which is convenient for program design. Because there are multiple first modules and they are detachably connected to the second module, for objects to be welded of different models, sizes, and shapes, each can have its own exclusive first module for fixture assembly design. When changing products, the first module can be directly replaced, without having to purchase and set up welding stations for different products separately, which can effectively reduce production costs.

[0022] The automobile production spot welding station equipment described in the present invention, other advantages, objectives and features of the present invention will be reflected in part through the following description, and in part will be understood by technicians in this field through research and practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0024] Figure 1 It is a schematic structural diagram of the spot welding station equipment for automobile production according to the present invention (the fixture assembly and welding equipment are not shown).

[0025] Figure 2 It is a schematic structural diagram of the second module in the automobile production spot welding station equipment of the present invention.

[0026] Figure 3 It is a structural schematic diagram of the bottom of the first module in the automobile production spot welding station equipment of the present invention.

[0027] Figure 4 It is a structural schematic diagram of the top of the first module in the automobile production spot welding station equipment of the present invention.

[0028] Figure 5 for Figure 1 Enlarged view of point A in the middle.

[0029] Figure 6 This is a schematic structural diagram of the calibration device and the limit unit of the automobile production spot welding station equipment according to the present invention (the rest of the first module is not shown).

[0030] Figure 7 It is a schematic diagram of fine calibration of the calibration device in the automobile production spot welding station equipment according to the present invention.

[0031] Figure 8 It is a schematic diagram of calibrating the first fine calibration device and the second fine calibration device in the automobile production spot welding station equipment of the present invention.

[0032] Fig. 9 It is a structural schematic diagram of a second embodiment of the second limiting part in the automobile production spot welding station equipment according to the present invention.

[0033] Fig.10 for Fig. 9 Exploded diagram.

[0034] Fig.11 This is a physical picture of the automobile production spot welding station equipment described in the present invention.

[0035] In the figure: 1 first module, 2 second module, 2a, 2b, 2c limiting member, 21 first limiting part, 3 second limiting part, 31a, 31b positioning screw, 32 fixed end, 33 adjusting end, 34 mounting hole, 35 movable hole, 36 positioning slot, 4 displacement assembly, 5 lifting device, 6 calibration device, 61 first calibration part, 611 calibration block, 612 first precision calibration device, 6121 first ring, 6122 calibration plate, 62 second calibration part, 621 calibration slot, 622 second precision calibration device, 6221 second ring, 6222 precision calibration block, 7 third limiting part. DETAILED DESCRIPTION

[0036] The present invention is further described in detail below in conjunction with the accompanying drawings and embodiments so that those skilled in the art can implement the invention with reference to the description.

[0037] It should be understood that the terms such as “having”, “including” and “comprising” used herein do not exclude the existence or addition of one or more other elements or combinations thereof.

[0038] like Figure 1-Figure 11 As shown, the present invention provides a spot welding station equipment for automobile production, comprising: at least one first module 1, wherein the first module 1 is used to set the material to be welded;

[0039] A second module 2 movably connected to the first module 1, the second module 2 is used for installation and positioning of the first module 1, and only one second module 2 is required.

[0040] When the welding station is welding, the first module 1 is located inside the second module 2.

[0041] When different materials to be welded are replaced, the first module 1 can be removed from the second module 2 and replaced with another first module 1;

[0042] Welding equipment used for spot welding of materials to be welded. The welding equipment can be a mechanical arm type or a multi-axis type, as long as it can achieve multi-angle and all-round welding using commercially available equipment or existing technology.

[0043] The working principle and beneficial effects of the above technical solution: the number of first modules 1 can be set to multiple, and each first module 1 is provided with a clamp assembly (the clamp assembly is a commercially available electric device, or an existing technology capable of implementing a clamping operation) to fix the material to be welded. Take two car doors of a certain brand as an example, the two car doors are door A and door B, and the sizes and shapes of door A and door B are different. In the traditional process, two welding stations need to be set up respectively for welding, while only one welding station is used in the present invention. Two first modules 1 are set, and the clamp assemblies on the two first modules 1 are respectively designed for door A and door B, so as to obtain a first module 1 dedicated to door A and a first module 1 dedicated to door B. When producing door A, it is only necessary to install the first module 1 dedicated to door A on the second module 2, and call the program for welding door A from the terminal of the welding equipment. Because the first module 1 and the second module 2 will be positioned and calibrated, the zero points of the two first modules 1 on the welding station are the same, which facilitates the program design and call of the terminal of the welding equipment.

[0044] When the production line product is converted from door A to door B, it is only necessary to remove the first module 1 dedicated to door A from the second module 2 and replace it with the first module 1 dedicated to door B, and then call the welding program of door B from the terminal of the welding equipment.

[0045] Through the design of the above structure, the design of the production-specific equipment is adjusted to the design of the fixture assembly on the first module 1, which can greatly reduce the workload of equipment design. Because the second module 2 and the welding equipment can be fixed in place, the program of the welding equipment terminal can use the second module 2 as a reference system, thereby ensuring the uniform position of the zero point in the welding equipment terminal program, which is convenient for program design. Because there are multiple first modules 1 and they are detachably connected to the second module 2, for objects to be welded of different models, sizes, and shapes, each can have its own exclusive first module 1 for fixture assembly design. When changing products, the first module 1 can be directly replaced, and there is no need to purchase and set up welding stations for different products separately, which can effectively reduce production costs.

[0046] In this embodiment, we provide a specific structure for illustration. First, the second module 2 is composed of a horizontal limit assembly and a positioning assembly located in the horizontal limit assembly. The horizontal limit assembly can limit the first module 1 on the horizontal plane, thereby controlling the in and out direction of the first module 1 and the stroke of the first module 1 in the second module 2. When the welding station is welding, the first module 1 is located in the horizontal limit assembly and abuts against the horizontal limit assembly. The positioning assembly is connected to the bottom surface of the first module 1. At this time, the first module 1 can no longer move in the horizontal and vertical directions under the joint action of the horizontal limit assembly and the positioning assembly, thereby providing a stable working environment for the materials to be welded on the first module 1.

[0047] The horizontal limit assembly is composed of three limit members 2a, 2b, and 2c; one of the limit members 2a is normal to the movement direction of the first module 1, and is used to limit the moving position of the first module 1; the other two limit members 2b and 2c are symmetrically arranged to form a channel for the movement of the first module 1, and are used to limit the movement direction of the first module 1; the three limit members 2a, 2b, and 2c are arranged in a C shape. When the first module 1 enters the horizontal limit assembly, the first module will first enter the moving channel formed by the limit members 2b and the limit members 2c, and move to abut against the limit member 2a under the limiting action of the limit members 2b and the limit members 2c. The first limit part 21 is provided on the limit member 2a of the horizontal limit assembly opposite to the C-shaped opening, and the first limit part 21 limits the first module 1 on the horizontal plane. The first module 1 is provided with a second limiting portion 3, the position of the second limiting portion 3 is adapted to the position of the first limiting portion 21, the first limiting portion 21 and the second limiting portion 3 constitute a limiting unit, and the limiting unit is used to limit the first module 1 on a horizontal plane. When the first module 1 moves to abut against the limiting member 2a, the second limiting portion 3 abuts against the first limiting portion 21, and the abutting end of the first limiting portion 21 and the second limiting portion 3 can be as follows Figure 5 The V-shaped second limiter 3 and the first limiter 21 are in a conical head, and the conical head design of the second limiter 3 can be used to correct the first module 1 in cooperation with the V-shaped groove of the first limiter 21 when the first module 1 is offset. The number of the first limiter 21 and the second limiter 3 is usually two, such as Figure 1 , 6 If the first module 1 is a rectangle with a displacement component 4 disposed at the bottom, the first module 1 can be easily moved by the displacement component 4. The displacement component 4 can be as follows Figure 3 The first module 1 is composed of four universal wheels as shown. And because of the rectangular design, after the first limiter 21 and the second limiter 3 are in contact, the first module 1 can only move toward the C-shaped opening of the horizontal limiter assembly in the horizontal direction, and the other three directions are limited by the limiter 2a, the limiter 2b and the limiter 2c respectively. After that, the first module 1 can be lifted by the positioning assembly, so that the first module 1 is separated from the ground and can no longer be moved by the displacement assembly 4, completing the calibration and positioning of the first module 1.

[0048] The positioning assembly is composed of at least four lifting devices 5, which are selectively connected to the bottom surface of the first module 1 through a calibration device 6. The calibration device 6 is composed of a first calibration portion 61 arranged on the top of the lifting device 5 and a second calibration portion 62 arranged on the bottom surface of the first module 1. The top surface of the first calibration portion 61 is provided with a truncated cone-shaped calibration block 611, and the bottom surface of the second calibration portion 62 is provided with a calibration groove 621 adapted to the calibration block 611. The inner diameter of the calibration groove 621 is greater than the maximum diameter of the truncated cone-shaped calibration block 611. After the first limiting portion 21 and the second limiting portion 3 are abutted, the first calibration portion 61 and the second calibration portion 62 are basically on the same central axis. When the lifting device 5 is raised, the calibration block 611 of the first calibration portion 61 is inserted into the calibration groove 621. Because the calibration block 611 is truncated cone-shaped, when it is inserted into the calibration groove 621, the first calibration portion 61 and the second calibration portion 62 can be corrected to be located on the same central axis. Because the second module 2 is usually fixed on the ground and is used as a reference system for welding equipment, it is necessary to ensure that each first module 1 is in the same position as much as possible after being connected to the second module 2. Therefore, in addition to calibrating and positioning the first module 1 in the horizontal direction through the calibration device 6 and the horizontal limit assembly, calibration and positioning are also required in the vertical direction. Therefore, a third limit portion 7 is provided on the top surface of the limit members 2a, 2b, and 2c. The third limit portion 7 can be a limit strip protruding from the limit member, or any existing technology that can limit the first module 1 in the vertical direction. When the lifting device 5 lifts the first module 1, the third limit portion 7 abuts against the first module 1 to complete the limitation of the first module 1 in the vertical direction. When replacing the first module 1, the third limiting portion 7 is separated from the first module 1 through the support of the displacement assembly 4. A crossbeam for a forklift is also provided at the bottom of the first module 1. If the displacement assembly 4 is not provided, the first module 1 can be supported by a forklift when the jacking device 5 descends. The third limiting portion 7 is used to limit the first module 1 in the vertical direction.

[0049] In the previous embodiment, we mentioned that the first calibration part 61 and the second calibration part 62 can be roughly on the same central axis, because the inner diameter of the calibration groove 621 is larger than the maximum diameter of the calibration block 611, so the two can only be roughly on the same central axis. If the two are not on the same central axis, there will be certain problems in determining the zero point of the welding equipment (that is, the zero point position of each first module 1 in the horizontal direction is very different). In order to compensate for the zero point deviation caused by different axes, a probe is usually used to perform touch calibration on three sides of the first module 1, which is more troublesome. In order to optimize the coaxiality of the first calibration part 61 and the second calibration part 62 when they are buckled together, so that each first module 1 can be automatically calibrated to the same position (that is, the zero point position of each first module 1 is not much different, and the finished products after welding by the welding equipment are also within the tolerance range), we provide a design scheme for optimizing the coaxiality, the calibration block 611 is sleeved with a first precision calibration device 612, the bottom surface of the second calibration part 62 is provided with an annular groove for placing the second precision calibration device 622, the annular groove is located on the inner side wall of the opening of the calibration groove 621, the second calibration part 62 is embedded in the annular groove, and the first precision calibration device 612 is sleeved on the calibration block 6 11, and at least three calibration plates 6122 arranged on the first ring 6121, the calibration plates 6122 are planes with an arc, and are attached to the outer wall of the calibration block 611, the calibration plates 6122 extend from the first ring 6121 toward the second calibration portion 62, and the plane of the calibration plates 6122 after being unfolded is a trapezoid with a small top and a large bottom, and the calibration plates 6122 can be tilted from the first ring 6121 toward the calibration block 611, and a gap is reserved between two adjacent calibration plates 6122. Because the unfolded plane of the calibration plates 6122 is a trapezoid, the unfolded plane of the gap between two adjacent calibration plates 6122 is a trapezoid with a large top and a small bottom, such as Figure 7As shown, the shape of the calibration plate 6122 makes the gap between two adjacent calibration plates 6122 gradually narrow in the direction of the first ring 6121. The second precision calibration device 622 consists of a second ring 6221 arranged in the annular groove, and at least three precision calibration blocks 6222 arranged on the inner wall of the second ring 6221. The second ring 6221 is nested in the annular groove to complete the fixation with the second calibration part 62. The precision calibration block 6222 extends from the inner wall of the second ring 6221 toward the center of the second ring 6221. The precision calibration block 6222 can be made of Saigang as long as it has a certain hardness, a smooth surface and a small friction coefficient. The arc length of the precision calibration block 6222 is less than the arc length of the gap reserved between the two calibration plates 6122. When the lifting device 5 is raised, the calibration block 611 of the first calibration part 61 will be inserted into the calibration groove 621. When the first calibration part 61 and the second calibration part 62 are not coaxial, the calibration block 611 will abut against the inner side wall of the calibration groove 621. Then, as the calibration block 611 rises, the calibration block 611 will drive the first module 1 to translate through the calibration groove 621 until the calibration block 611 and the calibration groove 621 are no longer subjected to force in the horizontal direction. At this time, it is located at the position of approximately the same central axis as described in the previous embodiment. As the calibration block 611 continues to rise, the fine calibration block 6222 begins to contact the side wall of the calibration block 611 and generates a radial force, pushing the first module 1 to calibrate again until the fine calibration block 6222 reaches the reserved gap of the calibration plate 6122. At this point, the horizontal translation calibration ends. As the fine calibration block 6222 enters the gap of the calibration plate 6122, the first module 1 begins to rotate in the horizontal direction. For example, when the side wall of the precision calibration block 6222 in one of the calibration devices 6 abuts against the side wall of the calibration plate 6122, as the first calibration part 61 rises, the first module 1 will rotate on the plane, thereby ensuring that the first calibration part 61 and the second calibration part 62 of the four calibration devices 6 are all located on the same central axis.

[0050] In the previous embodiment, we provide a technical solution for calibrating and optimizing the position of the first module 1. By adjusting the first module 1 during the jacking process, the effect of the second limit portion 3 and the horizontal limit assembly on the adjustment position of the first module 1 is reduced. The two only need to play a preliminary positioning effect, and the remaining precise calibration and positioning are all achieved by the calibration device 6 and the jacking device 5. As the importance of the second limit portion 3 and the horizontal limit assembly decreases, we provide a new design idea, that is, a multi-size design for the size of the first module 1, so that the first module 1 can be designed and planned according to the size of the material to be welded. First, the limit members 2b and 2c still serve as the function of the moving channel, and the limit member 2a is still used as the end point of the movement of the first module 1. The difference is that the second limit portion 3 is optimized as a structure with adjustable length, and the first module 1 needs to be provided with at least two second limit portions 3 for positioning. The second limiting portion 3 is composed of a fixed end 32 connected to the first module 1 through at least two positioning screws 31a, 31b, and an adjusting end 33 located in the fixed end 32 and detachably connected to the fixed end 32 through the two positioning screws 31a, 31b. The top surface of the fixed end 32 is provided with at least one mounting hole 34, and the mounting hole 34 is a through hole that passes through the top surface of the fixed end 32 to the bottom surface. The side wall of the fixed end 32 is provided with a movable hole 35 for placing the adjusting end 33. The movable hole 35 is arranged normally to the mounting hole 34, and the mounting hole 34 passes through the movable hole 35. The adjusting end 33 is provided with at least one positioning groove 36. If the adjusting end 33 is a rectangular block with a conical head, the positioning groove 36 extends from the top surface of the adjusting end 33 to the bottom surface of the adjusting end 33. If the adjusting end 33 is a rod-shaped structure with a conical head, the positioning groove 36 is annular, such as Fig.10 As shown. When the first module 1 is replaced, if the size of the replaced first module 1 is smaller, it is necessary to adjust the length of the second limiting portion 3 of the first module 1 to be replaced. First, the screws 31a and 31b are inserted from the first module 1 so that the fixed end 32 can be fixedly connected to the first module 1. The positioning screws 31a and 31b are inserted from the top of the mounting hole 34, pass through the positioning groove 36, and then pass through the mounting hole 34 at the bottom of the fixed end 32, and finally connected by nuts (or the mounting hole 34 adopts a threaded hole design). The screws 31a and 31b can limit the position of the adjustment end 33 through the positioning groove 36. This design can change the size and shape of the first module 1 at will, as long as the adjustment ends 33 of the two second limiting portions 3 are in contact with the V-shaped groove of the first limiting portion 21, and the first calibration portion 61 and the second calibration portion 62 are located at appropriate positions.

[0051] In the description of the present invention, it is to be understood that the terms “center”, “longitudinal”, “lateral”, “length”, “width”, “thickness”, “up”, “down”, “front”, “back”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inside”, “outside”, “clockwise”, “counterclockwise”, “axial”, “radial”, “circumferential”, etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0052] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0053] Although the embodiments of the present invention have been disclosed as above, they are not limited to the applications listed in the specification and the implementation methods. They can be fully applied to various fields suitable for the present invention. For those familiar with the art, additional modifications can be easily implemented. Therefore, without departing from the general concept defined by the claims and the scope of equivalents, the present invention is not limited to the specific details and the illustrations shown and described herein.

Claims

1. Automobile production spot welding station equipment, characterized by: include: At least one first module (1), the first module (1) being used to arrange materials to be welded; a second module (2) movably connected to the first module (1), the first module (1) being selectively located in the second module (2), and the second module (2) being used for installing and positioning the first module (1); Welding equipment used for spot welding of materials to be welded; The second module (2) is composed of a horizontal limit assembly and a positioning assembly located in the horizontal limit assembly, the first module (1) is located in the horizontal limit assembly and is movably connected to the horizontal limit assembly, and the positioning assembly is selectively connected to the bottom surface of the first module (1); The horizontal limiting assembly is composed of three limiting members (2a, 2b, 2c); One of the limiting members (2a) is normal to the movement direction of the first module (1) and is used to limit the moving position of the first module (1); The other two limiting members (2b, 2c) are symmetrically arranged to form a channel for the first module (1) to move, and are used to limit the movement direction of the first module (1); The three limiting members (2a, 2b, 2c) are arranged in a C shape; A first limiting portion (21) is provided on the limiting member (2a) of the horizontal limiting assembly opposite to the C-shaped opening, and the first limiting portion (21) limits the first module (1) on a horizontal plane; The first module (1) is rectangular, and a second limiting portion (3) is provided on the first module (1); the position of the second limiting portion (3) is adapted to the position of the first limiting portion (21); the first limiting portion (21) and the second limiting portion (3) constitute a limiting unit, and the limiting unit is used to limit the first module (1) on a horizontal plane; The positioning assembly is composed of at least four lifting devices (5), the lifting devices (5) are selectively connected to the bottom surface of the first module (1) through a calibration device (6), the calibration device (6) is composed of a first calibration part (61) arranged on the top of the lifting device (5), and a second calibration part (62) arranged on the bottom surface of the first module (1), the top surface of the first calibration part (61) is provided with a truncated cone-shaped calibration block (611), the bottom surface of the second calibration part (62) is provided with a calibration groove (621) adapted to the calibration block (611), and the inner diameter of the calibration groove (621) is greater than the maximum diameter of the truncated cone-shaped calibration block (611); The top surface of the limiting member (2a, 2b, 2c) is provided with a third limiting portion (7), the third limiting portion (7) selectively abuts against the first module (1), and the third limiting portion (7) is used to limit the first module (1) in the vertical direction; The second limiting portion (3) is composed of a fixed end (32) connected to the first module (1) through at least two positioning screws (31a, 31b), and an adjusting end (33) located in the fixed end (32) and detachably connected to the fixed end (32) through the two positioning screws (31a, 31b), the top surface of the fixed end (32) is provided with at least one mounting hole (34), the side wall of the fixed end (32) is provided with a movable hole (35) for placing the adjusting end (33), the mounting hole (34) passes through the movable hole (35), the adjusting end (33) is provided with at least one positioning groove (36), the positioning screw (31a, 31b) passes through the mounting hole (34) and passes through the positioning groove (36), and extends to the bottom of the fixed end (32).

2. The automobile production spot welding station equipment according to claim 1, characterized in that: A displacement component (4) is provided at the bottom of the first module (1).

3. The automobile production spot welding station equipment according to claim 1, characterized in that: The calibration block (611) is sleeved with a first precision calibration device (612); the bottom surface of the second calibration portion (62) is provided with an annular groove for accommodating the second precision calibration device (622); the annular groove is located on the inner side wall of the opening of the calibration groove (621); the first precision calibration device (612) is composed of a first ring (6121) sleeved on the outer wall of the calibration block (611), and at least three calibration plates (6122) arranged on the first ring (6121); the calibration The calibration plate (6122) is a plane with an arc and is attached to the outer wall of the calibration block (611). A gap is reserved between two adjacent calibration plates (6122). The second precision calibration device (622) is composed of a second ring (6221) arranged in the annular groove, and at least three precision calibration blocks (6222) arranged on the inner wall of the second ring (6221). The arc length of the precision calibration block (6222) is smaller than the arc length of the gap reserved between the two calibration plates (6122).

Images