A multi-station welding device for automobile body parts

Abstract

The present invention discloses a multi-station welding device for automobile body parts, which relates to the technical field of automobile parts processing, and comprises: a welding box, in which a plurality of welding positions distributed side by side are provided; a welding assembly, in which a plurality of welding assemblies are respectively installed in each welding position through a group of travel assemblies; a mobile box, in which at least one group of mobile boxes is arranged on one side of the welding box; a circulating drive frame, which is installed inside the mobile box, and a plurality of mobile positions are arranged at the output end; the distance between each mobile position matches the distance between each welding position; a welding fixing assembly, in which a plurality of welding fixing assemblies are respectively connected to each mobile position. The present invention realizes the synchronous operation of a plurality of welding positions by providing a plurality of welding positions distributed side by side, and combines the working principle of the circulating drive frame, thereby improving the efficiency of welding operation and the overall efficiency of the production line.

Description

Technical Field

[0001] The invention relates to the technical field of automobile parts processing, in particular to a multi-station welding device for automobile body parts. Background Art

[0002] In the process of processing automobile parts, welding is one of the commonly used processing methods. With the continuous development of the automobile industry, especially in the field of body manufacturing, the requirements for the automation and precision of body welding are increasing day by day. In order to solve the problems in production, some improved welding equipment design schemes have emerged, such as multi-station welding systems, robot welding, and automated fixtures. However, these traditional equipment still have disadvantages such as high complexity, high cost, poor adaptability, and low precision.

[0003] After searching, a Chinese patent (publication number: CN109048156B) discloses a multi-station rotary welding device, which includes a support table, a material receiving mechanism, a suction mechanism, a welding mechanism, a fixing mechanism, a connecting mechanism, a collecting mechanism and an installation mechanism; a suction mechanism is installed on one side of the fixing mechanism and the welding mechanism. During the welding process, the suction mechanism absorbs the smoke generated during the welding process into the interior of the collecting mechanism, and the smoke is filtered inside the collecting mechanism and then discharged into the air, and harmful substances in the smoke are adsorbed inside the collecting mechanism; a material receiving mechanism is set at the bottom end of the fixing mechanism, and when the workpiece is fixed on the surface of the fixing mechanism for welding, the melt dripping from the surface of the workpiece falls into the interior of the material receiving mechanism, and the material receiving mechanism is slidably connected to the top surface of the support table.

[0004] In the welding of body parts that require adjustment of angle and position, when the angle is adjusted multiple times, the accuracy is prone to deviation, which affects the welding quality. At the same time, the requirements for welding equipment are high, and a single welding equipment is needed to perform multiple welding on different positions of the body parts. Therefore, the present invention proposes a multi-station welding device for automobile body parts. Summary of the invention

[0005] The object of the present invention is to provide a multi-station welding device for automobile body parts to solve the problems mentioned in the above background technology.

[0006] The present invention can be implemented by the following technical scheme: A multi-station welding device for automobile body parts, comprising a welding box, wherein a plurality of welding positions distributed side by side are arranged inside the welding box, and a welding assembly is installed inside each welding position through a travel assembly;

[0007] And welding channels are provided on both sides of the welding box to facilitate the passage of the workpieces to be welded through the welding box;

[0008] At least one group of mobile boxes is arranged on the side of the welding box, a circulating drive frame is installed inside the mobile box, and a plurality of mobile stations are arranged at the output end of the circulating drive frame, and the distance between each mobile station matches the distance between each welding position;

[0009] In addition, the circulating drive frame is provided with at least one set of movable stations at both ends of the movable box, which are located outside the welding box, for facilitating the assembly of the workpiece with the welding fixture or the removal of the workpiece from the welding fixture;

[0010] Welding and fixing components are installed in each mobile station;

[0011] A plurality of alignment components are installed inside the mobile box on the side of the circulating drive frame facing away from the welding box, and each alignment component is matched with a group of welding positions respectively;

[0012] The welding fixing assembly includes an assembly box, which is used to be connected to the output end of the circulating drive frame, and the interior of the assembly box is rotatably connected to a clamp module, which is used to clamp and fix the workpiece to be welded;

[0013] A driving mechanism is installed on the side of the assembly box, and the output end of the driving mechanism is connected to the fixture module to control the angle of the fixture module;

[0014] After the welding fixture assembly is moved to different welding positions, the driving mechanism adjusts the angle of the workpiece by rotating the angle of the fixture module, and rotates the part of the workpiece to be welded to face the welding assembly at a preset angle;

[0015] A coaxially rotating positioning structure is installed at one end of the fixture module facing away from the welding box, and the positioning structure is provided with at least one set of identification points based on the welding position of the workpiece;

[0016] After the circulating drive frame moves the workpiece to the corresponding welding position through the welding fixing assembly, the driving mechanism in the welding fixing assembly drives the fixture module to rotate, thereby rotating the welding part preset in the workstation to face the welding assembly in the corresponding welding position, and after the calibration assembly corresponding to the welding position confirms the identification point in the positioning structure, the welding assembly adjusts its own height through the stroke assembly to facilitate approaching the workpiece, and after the welding assembly approaches the workpiece, the welding assembly performs welding operations on the welding part of the workpiece based on the preset program.

[0017] A further technical improvement of the present invention is that a group of moving boxes are arranged on the side of the welding box;

[0018] A first sealing component is installed on one side of the two welding channels in the welding box, and a second sealing component is installed between each welding position;

[0019] When the welding components in each welding position perform welding operations on the workpiece, the two sets of first closing components separate the welding channels at both ends of the welding box, thereby reducing the connection area between the welding box and the outside;

[0020] Each second sealing component separates each welding position, thereby reducing the influence between each welding position.

[0021] A further technical improvement of the present invention is that the first closing component includes a first lifting cylinder connected to the welding box, and a first partition member is installed at the output end of the first lifting cylinder.

[0022] A further technical improvement of the present invention is that the second sealing assembly includes two sets of second lifting cylinders and two sets of fixing plates, the two sets of second lifting cylinders are respectively connected to the upper and lower sides of the inside of the welding box, and the output ends of the two sets of second lifting cylinders are arranged opposite to each other, and both are equipped with second partitions, and the two sets of second partitions are arranged in an alternating manner;

[0023] The two sets of fixing plates are respectively installed on the upper and lower sides of the welding box, and are respectively arranged on one side of the corresponding second lifting cylinder;

[0024] The two sets of second partitions are driven by the corresponding second lifting cylinders to slide along the corresponding fixed plates until the sides of the two sets of second partitions fit together and cooperate with the two sets of fixed plates to separate the space inside the welding box.

[0025] A further technical improvement of the present invention is that a storage bin is opened on the side of each welding position facing away from the moving box, and a reinforcement component is installed inside each storage bin. After the welding fixing component moves the workpiece to the corresponding welding position, the reinforcement component supports the end of the workpiece facing away from the welding fixing component.

[0026] A further technical improvement of the present invention is that: the reinforcement assembly comprises at least one set of first stroke cylinders, the first stroke cylinders are connected to corresponding storage bins, and a connection box is installed at the output end of the first stroke cylinders;

[0027] The two ends of the connection box are respectively equipped with a winding mechanism and a fixing piece;

[0028] A connecting piece is installed on the outer side of the fixing piece, and the other end of the connecting piece is connected to the output end of the winding mechanism;

[0029] After the reeling mechanism is started, the connecting piece is reeled, thereby reducing the length of the connecting piece located on the outside;

[0030] After the connecting member moves based on the first stroke cylinder and is sleeved to the outside of the workpiece, the length of the connecting member located on the outside is reduced, thereby supporting the workpiece through the connecting member.

[0031] A further technical improvement of the present invention is that: the positioning structure comprises a positioning ring and a positioning member, and the positioning ring rotates coaxially with the fixture module;

[0032] The positioning ring is provided with an inner ring on one side facing the calibration component, and a plurality of positioning holes distributed at equal distances are provided on the inner edge of the inner ring;

[0033] When in use, the positioning piece is installed on the positioning hole corresponding to the positioning ring based on the welding position of the workpiece.

[0034] A further technical improvement of the present invention is that: the alignment assembly includes a connecting block, the connecting block is connected to the moving box through a second stroke cylinder, and the moving box is provided with a plurality of guide posts on one side of the corresponding position of the connecting block, and the connecting block is slidably connected to each guide post;

[0035] An adjustment block is installed on one side of the connection block facing the circulation drive frame, the adjustment block has a built-in adjustment screw rod structure, and a detection component is installed on the output end of the adjustment screw rod structure;

[0036] When the positioning ring rotates, the detection member moves to the inside of the inner ring of the positioning ring based on the connecting block, and the detection member is located in the moving path of the positioning member;

[0037] In addition, the adjustment block is provided with corresponding adjustment intervals based on the positioning pieces at different positions. When the positioning ring rotates, the adjustment screw structure drives the detection piece to adjust the corresponding adjustment interval.

[0038] Compared with the prior art, the present invention has the following beneficial effects:

[0039] The present invention realizes synchronous operation of multiple welding stations by arranging multiple welding positions distributed side by side and combining the working principle of the circulating drive frame, thereby improving the efficiency of the welding operation and the overall efficiency of the production line, and is particularly suitable for the needs of mass production.

[0040] And through the precise coordination of synchronous clamping components and positioning and calibration components, the coordination and synchronous operation between multiple welding stations are realized, which significantly improves the work efficiency of each station. The precise positioning and efficient clamping mechanism ensure the stability of the workpiece and the accuracy of the welding process, and reduce welding defects caused by workpiece offset or unstable fixation;

[0041] At the same time, by reinforcing the components, additional support can be provided to the workpiece during the welding process to prevent the workpiece from being deformed or damaged due to uneven force during the welding process. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] In order to facilitate understanding by those skilled in the art, the present invention is further described below with reference to the accompanying drawings.

[0043] Figure 1 This is a schematic diagram of the structure of Embodiment 1 of the present invention;

[0044] Figure 2 is a side sectional view of a welding box in Example 1 of the present invention;

[0045] Figure 3 is a side sectional view of the reinforcement assembly in Example 1 of the present invention;

[0046] Figure 4 It is a side sectional view of the mobile box in the present invention;

[0047] Figure 5 It is a cross-sectional view of the mobile box in the present invention;

[0048] Figure 6 For the present invention Figure 5 A magnified view of the structure of part A;

[0049] Figure 7 This is a schematic diagram of the structure of Embodiment 2 of the present invention;

[0050] In the figure: 1. welding box; 2. moving box; 3. stroke assembly; 4. welding assembly; 5. storage bin; 6. reinforcement assembly; 7. first closed assembly; 8. second closed assembly; 9. circulating drive frame; 10. welding fixed assembly; 11. calibration assembly; 61. connecting box; 62. first stroke cylinder; 63. winding mechanism; 64. fixing part; 65. connecting part; 101. assembly box; 102. fixture module; 103. driving mechanism; 104. positioning ring; 105. positioning hole; 111. second stroke cylinder; 112. connecting block; 113. adjusting block; 114. detection part. DETAILED DESCRIPTION

[0051] In order to further explain the technical means and effects adopted by the present invention to achieve the predetermined invention purpose, the specific implementation methods, structures, features and effects of the present invention are described in detail below in conjunction with the accompanying drawings and preferred embodiments.

[0052] Example 1

[0053] See also Figure 1-6 As shown, the present invention provides a multi-station welding device for automobile body parts, comprising a welding box 1, wherein a plurality of welding positions distributed side by side are arranged inside the welding box 1, and a welding assembly 4 is installed inside each welding position through a travel assembly 3;

[0054] And welding channels are provided on both sides of the welding box 1 to facilitate the passage of the workpiece to be welded through the welding box 1;

[0055] In this embodiment, a fan structure is installed on the upper side of the welding box 1 to maintain air flow in each welding position when welding;

[0056] A group of mobile boxes 2 are arranged on the side of the welding box 1, and a circulating drive frame 9 is installed inside the mobile box 2. A plurality of mobile stations are arranged at the output end of the circulating drive frame 9, and the distance between each mobile station matches the distance between each welding position;

[0057] And the circulating driving frame 9 is provided with a group of movable stations at both ends of the movable box 2, which are located outside the welding box 1, for facilitating the assembly of the workpiece with the welding fixture assembly 10 or removing the workpiece from the welding fixture assembly 10;

[0058] And in this embodiment, the conveying assembly and the transporting assembly are respectively located at both ends of the moving box 2;

[0059] After the car body parts to be welded are spliced ​​and positioned with each other, the composed workpieces are transported to the welding device of the present application through the conveying assembly, that is, during welding, the same welding fixing assembly 10 synchronously clamps and fixes the car body parts to be welded, and drives them to rotate synchronously;

[0060] A welding fixing assembly 10 is installed in each mobile station;

[0061] A plurality of alignment components 11 are installed inside the mobile box 2 on the side of the circulating drive frame 9 facing away from the welding box 1, and each alignment component 11 is matched with a group of welding positions respectively;

[0062] The welding fixing assembly 10 includes an assembly box 101, which is used to be connected to the output end of the circulating driving frame 9, and the assembly box 101 is rotatably connected to a fixture module 102 inside, and the fixture module 102 is used to clamp and fix the workpiece to be welded, and the clamping and fixing structure in the fixture module 102 is selected based on the corresponding body part;

[0063] A driving mechanism 103 is installed on the side of the assembly box 101, and the output end of the driving mechanism 103 is connected to the fixture module 102 for controlling the angle of the fixture module 102;

[0064] In this embodiment, a connecting tooth portion is disposed on the outer side of the clamp module 102, and the driving mechanism 103 includes a motor unit and a gear unit connected to the output end of the motor unit, and the gear unit is meshedly connected with the connecting tooth portion;

[0065] After the welding fixture assembly 10 is moved to a different welding position, the driving mechanism 103 adjusts the angle of the workpiece by rotating the angle of the clamp module 102, and rotates the part of the workpiece to be welded to face the welding assembly 4 according to a preset angle;

[0066] A coaxially rotating positioning structure is installed at one end of the fixture module 102 facing away from the welding box 1. The positioning structure is provided with at least one set of identification points based on the welding position of the workpiece;

[0067] After the circulating drive frame 9 moves the workpiece to the corresponding welding position through the welding fixing component 10, the driving mechanism 103 in the welding fixing component 10 drives the clamp module 102 to rotate, thereby rotating the preset welding position of the workstation to face the welding component 4 in the corresponding welding position, and after the calibration component 11 corresponding to the welding position confirms the identification point in the positioning structure, the welding component 4 adjusts its own height through the stroke component 3, so as to facilitate approaching the workpiece, and after the welding component 4 approaches the workpiece, the welding component 4 performs welding operations on the welding position of the workpiece based on the preset program.

[0068] See also Figure 2 As shown, a group of moving boxes 2 are arranged on the side of the welding box 1;

[0069] A first closing component 7 is installed on one side of the two welding channels inside the welding box 1, and a second closing component 8 is installed between each welding position;

[0070] When the welding components 4 in each welding position perform welding operations on the workpiece, the two sets of first sealing components 7 separate the welding channels at both ends of the welding box 1, thereby reducing the connection area between the welding box 1 and the outside;

[0071] Each second sealing component 8 separates each welding position, thereby reducing the influence between each welding position.

[0072] The first closing assembly 7 comprises a first lifting cylinder connected to the welding box 1, and a first partition member is installed at the output end of the first lifting cylinder.

[0073] The second sealing assembly 8 includes two sets of second lifting cylinders and two sets of fixing plates. The two sets of second lifting cylinders are respectively connected to the upper and lower sides of the inside of the welding box 1, and the output ends of the two sets of second lifting cylinders are arranged opposite to each other, and both are equipped with second partitions, and the two sets of second partitions are staggered.

[0074] The two sets of fixing plates are respectively installed on the upper and lower sides of the welding box 1, and are respectively arranged on one side of the corresponding second lifting cylinder;

[0075] The two sets of second partitions are respectively driven by the corresponding second lifting cylinders to slide along the corresponding fixed plates until the sides of the two sets of second partitions fit together and cooperate with the two sets of fixed plates to separate the space inside the welding box 1.

[0076] A storage bin 5 is provided on the side of each welding position facing away from the movable box 2, and a reinforcement component 6 is installed inside each storage bin 5. After the welding fixing component 10 moves the workpiece to the corresponding welding position, the reinforcement component 6 supports the end of the workpiece facing away from the welding fixing component 10.

[0077] See also Figure 3 As shown, the reinforcement assembly 6 includes a set of first stroke cylinders 62, the first stroke cylinders 62 are connected to the corresponding storage bins 5, and a connection box 61 is installed at the output end of the first stroke cylinders 62;

[0078] The two ends of the connection box 61 are respectively installed with a winding mechanism 63 and a fixing member 64;

[0079] A connecting member 65 is installed on the outer side of the fixing member 64, and the other end of the connecting member 65 is connected to the output end of the winding mechanism 63;

[0080] After the reeling mechanism 63 is started, the connecting member 65 is reeled up, thereby reducing the length of the connecting member 65 located on the outside;

[0081] After the connecting member 65 moves based on the first stroke cylinder 62 and is sleeved to the outside of the workpiece, the length of the connecting member 65 located on the outside is reduced, so that the workpiece is supported by the connecting member 65 .

[0082] See also Figure 5-6 As shown, the positioning structure includes a positioning ring 104 and a plurality of positioning members, and the positioning ring 104 rotates coaxially with the fixture module 102;

[0083] The positioning ring 104 is provided with an inner ring on one side facing the alignment component 11, and a plurality of positioning holes 105 are provided on the inner edge of the inner ring at equal distances;

[0084] When in use, each positioning member is installed on the corresponding positioning hole 105 of the positioning ring 104 based on the welding position of the workpiece;

[0085] In this embodiment, each positioning hole 105 is provided with a threaded portion, and the positioning member is fixed to the positioning hole 105 by screw connection.

[0086] The alignment assembly 11 includes a connection block 112, which is connected to the moving box 2 via a second stroke cylinder 111, and a plurality of guide posts are installed on one side of the moving box 2 at a position corresponding to the connection block 112, and the connection block 112 is slidably connected to each guide post;

[0087] An adjustment block 113 is installed on one side of the connection block 112 facing the circulation drive frame 9. The adjustment block 113 has a built-in adjustment screw rod structure, and a detection member 114 is installed at the output end of the adjustment screw rod structure.

[0088] When the positioning ring 104 rotates, the detection member 114 moves to the inside of the inner ring of the positioning ring 104 based on the connecting block 112, and the detection member 114 is located in the moving path of the positioning member;

[0089] In this case, since there is a spacing between each positioning hole 105, after the positioning member is assembled with the corresponding positioning hole 105, the rotation angle preset between the positioning member and the connection block 112 is different;

[0090] Therefore, the adjustment block 113 is provided with corresponding adjustment intervals based on the positioning members at different positions. When the positioning ring 104 rotates, the adjustment screw structure drives the detection member 114 to adjust the corresponding adjustment interval. The adjustment intervals corresponding to the positioning members at different positions are obtained through experimental simulation.

[0091] In this embodiment, the detection member 114 adopts a pressure detection component, which generates pressure data after contacting the corresponding positioning member.

[0092] While working:

[0093] Each movable station in the circulating driving frame 9 moves from the outside of the welding box 1 to the inside of the welding box 1. Before each movable station enters the welding box 1, it first passes through the conveying assembly on one side of the welding box 1 in sequence. The conveying assembly assembles the workpiece to be processed with the fixture module 102 of the welding fixing assembly 10 in the corresponding movable station;

[0094] The welding fixture assembly 10 clamps and fixes the workpiece, and as the circulating drive frame 9 rotates, the workpiece is brought into the welding box 1 and moves in each welding position in turn;

[0095] Before the workpiece enters each welding position, the driving mechanism 103 in the welding fixture assembly 10 is started to drive the fixture module 102 to rotate and adjust its angle, thereby changing the position of the workpiece toward the welding assembly 4;

[0096] When the driving mechanism 103 adjusts the angle of the clamp module 102, the alignment component 11 on the corresponding welding station side is started, and the second stroke cylinder 111 in the alignment component 11 drives the adjustment block 113 to move through the connecting block 112, so as to move the detection member 114 to the moving path of the inner positioning member in the positioning ring 104. At the same time, based on the offset degree of the corresponding positioning member, the adjustment screw structure inside the adjustment block 113 is started to adjust the position of the detection member 114, so that after the workpiece is rotated to a preset angle, the corresponding positioning member contacts the detection member 114;

[0097] After detecting that the positioning member is in the preset position, the reinforcement assembly 6 in the corresponding welding position is started to support the end of the workpiece facing away from the welding fixing assembly 10;

[0098] When the reinforcement assembly 6 is started, the connecting member 65 inside it is in a released state. The connecting member 65 is in a downwardly erected state due to its own weight, and its two ends are extended to the side based on the winding mechanism 63 and the fixing member 64, so that the connecting member 65 is U-shaped;

[0099] The first stroke cylinder 62 moves the connection box 61 horizontally until the connection piece 65 is moved to the outside of the corresponding end of the workpiece, and then the winding mechanism 63 is started to wind the connection piece 65 until the connection piece 65 supports the workpiece from the bottom;

[0100] By detecting the torque of the winding mechanism 63, the winding length when the connecting member 65 contacts the workpiece is detected, thereby assisting in detecting whether the welding angle of the workpiece is correct;

[0101] After the welding angle of the workpiece is judged to be correct, the travel component 3 and the welding component 4 in the corresponding welding position are started to perform welding work on the preset welding position of the workpiece;

[0102] After the workpiece has welded the corresponding welding position at a single welding position, it is transferred to the remaining welding positions in sequence through the circulating drive frame 9, and the angle of the workpiece is adjusted during each transfer, and the angle is detected through the data fed back by the calibration component 11 and the winding mechanism 63;

[0103] Finally, the circulating driving frame 9 moves the welded workpiece to the outside of the welding box 1 through the welding fixing assembly 10, and transports the welded workpiece away from the welding device through the transport assembly.

[0104] Example 2

[0105] See also Figure 7 As shown, a multi-station welding device for automobile body parts includes a welding box 1, wherein a plurality of welding positions distributed side by side are arranged inside the welding box 1, and a welding assembly 4 is installed inside each welding position through a travel assembly 3;

[0106] A set of moving boxes 2 are provided on both sides of the welding box 1;

[0107] And welding channels are provided on both sides of the welding box 1 to facilitate the passage of the workpiece to be welded through the welding box 1;

[0108] A first closing component 7 is installed on one side of the two welding channels inside the welding box 1, and a second closing component 8 is installed between each welding position;

[0109] When the welding components 4 in each welding position perform welding operations on the workpiece, the two sets of first sealing components 7 separate the welding channels at both ends of the welding box 1, thereby reducing the connection area between the welding box 1 and the outside;

[0110] Each second sealing component 8 separates each welding position, thereby reducing the influence between each welding position.

[0111] The two groups of mobile boxes 2 are both installed with a circulating drive frame 9, and the output ends of the two groups of circulating drive frames 9 are both provided with a plurality of mobile stations, and the distance between each mobile station matches the distance between each welding position;

[0112] And the various moving stations in the two sets of circulating drive racks 9 match each other;

[0113] And the circulating driving frame 9 is provided with a group of movable stations at both ends of the movable box 2, which are located outside the welding box 1, for facilitating the assembly of the workpiece with the welding fixture assembly 10 or removing the workpiece from the welding fixture assembly 10;

[0114] And in this embodiment, the conveying assembly and the transporting assembly are respectively located at both ends of the moving box 2;

[0115] And the workpiece in this embodiment includes two groups of body parts, and the corresponding two groups of body parts are clamped and fixed by two groups of welding and fixing assemblies 10 that match each other;

[0116] A welding fixing assembly 10 is installed in each mobile station;

[0117] A plurality of alignment components 11 are installed inside the mobile box 2 on the side of the circulating drive frame 9 facing away from the welding box 1, and each alignment component 11 is matched with a group of welding positions respectively;

[0118] The welding fixing assembly 10 includes an assembly box 101, which is used to be connected to the output end of the circulating drive frame 9, and the assembly box 101 is rotatably connected to a clamp module 102 inside, and the clamp module 102 is used to clamp and fix the workpiece to be welded;

[0119] A driving mechanism 103 is installed on the side of the assembly box 101, and the output end of the driving mechanism 103 is connected to the fixture module 102 for controlling the angle of the fixture module 102;

[0120] The fixture modules 102 in the corresponding welding fixing components 10 in the two sets of circulating driving frames 9 are coaxially arranged, and when the fixture modules 102 drive the respective body parts to rotate, the two sets of body parts rotate along the same axis;

[0121] A coaxially rotating positioning structure is installed at one end of the fixture module 102 facing away from the welding box 1. The positioning structure is provided with multiple sets of identification points based on the welding position of the workpiece;

[0122] After the circulating drive frame 9 moves the workpiece to the corresponding welding position through the welding fixing component 10, the driving mechanism 103 in the welding fixing component 10 drives the clamp module 102 to rotate, thereby rotating the preset welding position of the workstation to face the welding component 4 in the corresponding welding position, and after the calibration component 11 corresponding to the welding position confirms the identification point in the positioning structure, the welding component 4 adjusts its own height through the stroke component 3, so as to facilitate approaching the workpiece, and after the welding component 4 approaches the workpiece, the welding component 4 performs welding operations on the welding position of the workpiece based on the preset program.

[0123] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Although the present invention has been disclosed as a preferred embodiment as above, it is not used to limit the present invention. Any technical personnel in this field can make some changes or modify the technical contents disclosed above into equivalent embodiments without departing from the scope of the technical solution of the present invention. However, any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present invention without departing from the content of the technical solution of the present invention still fall within the scope of the technical solution of the present invention.

Claims

1. A multi-station welding device for automobile body parts, characterized in that: include: A welding box (1) having a plurality of welding positions arranged side by side; Welding assemblies (4), wherein a plurality of the welding assemblies (4) are respectively installed in each welding position via a set of travel assemblies (3); A movable box (2), at least one group of the movable boxes (2) being arranged on one side of the welding box (1); A circulating drive frame (9) is installed inside the moving box (2), and a plurality of moving workstations are arranged at the output end; The distance between each mobile station matches the distance between each welding station; A welding fixing assembly (10), wherein a plurality of the welding fixing assemblies (10) are respectively connected to each movable station; A positioning assembly (11), wherein a plurality of the positioning assemblies (11) are arranged on a side of the circulating drive frame (9) facing away from the welding box (1), and each positioning assembly (11) is matched with a group of welding positions; Each welding fixing assembly (10) is cyclically moved between each welding position and the calibration assembly (11) based on the cyclic driving frame (9); The welding fixing assembly (10): An assembly box (101) is connected to the output end of the circulating drive frame (9) and is internally rotatably connected to a fixture module (102); A driving mechanism (103) is installed on one side of the assembly box (101), and an output end thereof is connected to the fixture module (102); A positioning structure, arranged at one end of the clamp module (102) facing away from the welding box (1), and coaxially arranged with the clamp module (102); The positioning structure is based on the welding position of the workpiece and is provided with at least one set of identification points; After the positioning structure rotates based on the fixture module (102), the calibration component (11) identifies the position of the corresponding identification point; The positioning structure comprises a positioning ring (104) and a positioning piece, and the positioning ring (104) rotates coaxially with the clamp module (102); The positioning ring (104) is provided with an inner ring on one side facing the calibration component (11), and a plurality of positioning holes (105) distributed at equal intervals are provided on the inner edge of the inner ring; The positioning piece is assembled to the corresponding positioning hole (105) based on the welding position of the workpiece; The alignment component (11) comprises a connection block (112); The connecting block (112) is connected to the moving box (2) via a second stroke cylinder (111); An adjustment block (113) is installed on one side of the connection block (112) facing the circulation drive frame (9), the adjustment block (113) having a built-in adjustment screw rod structure, and a detection component (114) is installed on the output end of the adjustment screw rod structure.

2. The multi-station welding device for automobile body parts according to claim 1, characterized in that: The circulating drive frame (9) is provided with at least one group of movable workstations at both ends of the movable box (2) and is located outside the welding box (1).

3. The multi-station welding device for automobile body parts according to claim 1, characterized in that: Each welding position is provided with a storage bin (5) on one side facing away from the moving box (2), and each storage bin (5) is provided with a reinforcement component (6) installed inside. After the welding fixing assembly (10) moves the workpiece into the corresponding welding position, the reinforcing assembly (6) supports one end of the workpiece facing away from the welding fixing assembly (10).

4. The multi-station welding device for automobile body parts according to claim 3, characterized in that: The reinforcement assembly (6) comprises at least one set of first stroke cylinders (62); A connection box (61) is installed at the output end of the first stroke cylinder (62); The two ends of the connection box (61) are respectively equipped with a winding mechanism (63) and a fixing member (64); A connecting piece (65) is installed on the outer side of the fixing piece (64), and the other end of the connecting piece (65) is connected to the output end of the winding mechanism (63); After the reeling mechanism (63) is started, the connecting member (65) is reeled up.

5. The multi-station welding device for automobile body parts according to claim 1, characterized in that: The adjustment block (113) is provided with corresponding adjustment spacings based on positioning pieces at different positions; When the positioning ring (104) rotates, the adjustment screw structure drives the detection member (114) to adjust the corresponding adjustment spacing.

6. The multi-station welding device for automobile body parts according to claim 1, characterized in that: A first closing component (7) is installed on one side of the two groups of welding channels inside the welding box (1), and a second closing component (8) is installed between each welding position.

7. The multi-station welding device for automobile body parts according to claim 6, characterized in that: The second sealing assembly (8) comprises two sets of second lifting cylinders and two sets of fixing plates; The two sets of second lifting cylinders are respectively connected to the upper and lower sides of the inside of the welding box (1), and the output ends of the two sets of second lifting cylinders are arranged opposite to each other, and both are equipped with second partitions, and the two sets of second partitions are arranged in a staggered manner; The two sets of fixing plates are respectively mounted on the upper and lower sides of the welding box (1), and are respectively arranged on one side of the corresponding second lifting cylinder.

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