Armrest framework welding tool with automatic positioning function

Abstract

The invention provides an automatic positioning armrest framework welding tool, and relates to the technical field of automobile armrest framework manufacturing, the automatic positioning armrest framework welding tool comprises a tool supporting table, an inner table groove is formed in the upper portion of the tool supporting table, a transposition servo motor is installed in the inner table groove, and the transposition servo motor is connected with and drives a rotary disc type welding table; six armrest framework positioning tables are movably mounted on the rotary disc type welding table, framework rod limiting seats are fixedly connected to the inner ends of the upper surfaces of the armrest framework positioning tables, and supporting rods and a rotary base shell are fixed and straightened through rod body side clamping plates and round head side clamping plates correspondingly, so that automatic butt joint, straightening and fixing of the supporting rods and the rotary base shell are achieved; according to the handrail framework placing tool, manual operation is not needed, time and labor are saved, and the problems that manual placing of the handrail framework is low in efficiency and high in deviation rate, a clamping mechanism in the tool is controlled to clamp the handrail framework after the handrail framework is placed, and time and labor are consumed due to the fact that clamping of the welded and assembled finished handrail framework needs to be manually relieved and discharged are solved.

Description

Technical Field

[0001] The present invention relates to the technical field of automotive armrest skeleton manufacturing, and particularly to an automatic positioning welding fixture for an armrest skeleton. Background Art

[0002] An automotive armrest uses an armrest skeleton as an internal support frame. The surface of the skeleton is covered with a TPE skin or a latex cushion layer to improve the tactile comfort of the armrest. As the internal support frame of the armrest, the skeleton directly determines the functional realization and durability of the armrest. Its structure needs to bear the pressure of the occupant's elbow, and at the same time, it is connected to the seat hinge through a plug post to ensure the opening and closing stability of the armrest. The armrest skeleton is made of high-strength steel or lightweight alloy (such as aluminum alloy). In traditional automotive armrest skeletons, the rotating base housing and the support rod part at the hinge end with the seat are usually assembled by welding through an intelligent welding robot.

[0003] During the traditional welding and assembly process of an automotive armrest skeleton, tools or fixtures are needed as supports to fix and butt the rotating base housing and the support rod respectively. The welding robot has high requirements for the positioning accuracy of the workpiece and needs to be precisely adjusted manually. The manual placement efficiency of the armrest skeleton is low and the deviation rate is high. After the placement of the armrest skeleton is completed, the clamping mechanism in the fixture needs to be controlled to clamp it. After the welding and assembly, the finished armrest skeleton needs to be manually unclamped and unloaded, which is time-consuming and laborious. Summary of the Invention

[0004] The present invention provides an automatic positioning welding fixture for an armrest skeleton to solve the problems in the traditional welding and assembly process of an automotive armrest skeleton, where tools or fixtures are needed as supports to fix and butt the rotating base housing and the support rod respectively. The welding robot has high requirements for the positioning accuracy of the workpiece and needs to be precisely adjusted manually. The manual placement efficiency of the armrest skeleton is low and the deviation rate is high. After the placement of the armrest skeleton is completed, the clamping mechanism in the fixture needs to be controlled to clamp it. After the welding and assembly, the finished armrest skeleton needs to be manually unclamped and unloaded, which is time-consuming and laborious.

[0005] The present invention provides an automatic positioning welding tooling for an armrest skeleton, specifically including: a tooling support platform, an inner table groove is opened above the tooling support platform, a transposition servo motor is installed inside the inner table groove, the transposition servo motor is connected to and drives a rotary disk welding table, six armrest skeleton positioning platforms are movably installed on the rotary disk welding table, a skeleton rod limiting seat is fixedly connected to the inner end of the upper surface of the armrest skeleton positioning platform, a telescopic guide block is slidably connected to the bottom of the armrest skeleton positioning platform, a guide block push rod is fixedly connected to the outer end of the telescopic guide block, a guide push wheel is rotatably installed on the guide block push rod through a bearing, an arc-shaped linkage track is installed above the tooling support platform through a bracket, the guide push wheel is in rolling connection with the arc-shaped linkage track, a round head centering push block is fixedly connected to the upper end of the guide block push rod, two side push frames are movably connected above the armrest skeleton positioning platform, a push frame guide plate is fixedly connected to the lower part of the side push frame, the push frame guide plate is slidably connected to the telescopic guide block, a rod body side clamping plate and a round head side clamping plate are fixedly connected to the upper part of the side push frame, a push frame inclined groove is obliquely opened on the side push frame, and two linkage guide rods are fixedly connected above the armrest skeleton positioning platform, and the linkage guide rods are slidably connected inside the push frame inclined groove.

[0006] Further, a balance adjustment platform is provided at the bottom of the armrest skeleton positioning platform, a balance guide rod is slidably connected below the balance adjustment platform, a balance push plate is fixedly connected to the lower end of the balance guide rod, a balance push spring is fixedly connected between the balance push plate and the balance adjustment platform, and a balance support wheel is rotatably connected to the lower surface of the balance push plate.

[0007] Further, a horizontal orientation ring is fixedly connected inside the inner table groove through a bracket, two tilting inclined plates are processed by bending on the horizontal orientation ring, and the balance support wheel is in rolling connection with the upper surface of the horizontal orientation ring.

[0008] Further, the two ends of the arc-shaped linkage track extend linearly with a contraction track, and the inner surfaces of the arc-shaped linkage track and the contraction track are arc-shaped structures.

[0009] Further, a positioning platform connecting shaft is fixedly connected to one end of the armrest skeleton positioning platform facing the center of the rotary disk welding table, the positioning platform connecting shaft is rotatably connected to the rotary disk welding table through a bearing, and two guide plate through holes are longitudinally penetrated in the armrest skeleton positioning platform.

[0010] Further, a lower guide seat is installed below the armrest skeleton positioning platform through screws, two contraction guide rods are installed below the lower guide seat through screws, two reset tension springs are fixedly connected to the bottom of the lower guide seat, and the other ends of the reset tension springs are fixedly connected to the telescopic guide block.

[0011] Further, a transverse chute is transversely penetrated in the telescopic guide block, a radial chute is opened above the telescopic guide block, and the radial chute is slidably connected to the contraction guide rod.

[0012] Further, the upper half of the pushing frame guide plate movably passes through the guide plate through-hole, and the lower half of the pushing frame guide plate is slidably connected in the transverse chute.

[0013] Further, a limiting flange is processed by bending at the upper end of the skeleton rod limiting seat, and limiting side rods are fixedly connected to both sides of the bottom of the skeleton rod limiting seat.

[0014] Further, both the rod body side clamping plate and the round head side clamping plate are in an "L" shape structure, and the round head side clamping plate is in an arc shape structure.

[0015] The present invention provides an automatic positioning welding tooling for an armrest skeleton, which has the following beneficial effects: The welding tooling for the armrest skeleton in the present invention is used for welding the rotating base shell and the support rod part in the automotive armrest skeleton. It is provided with a rotatable turntable type welding table, which supports six groups of armrest skeleton positioning tables through the turntable type welding table. Six groups of armrest skeleton positioning tables can be used to place and fix six groups of armrest skeletons. When loading materials, the operator places the rotating base shell and the support rod above the armrest skeleton positioning table, making the docking end of the support rod face the rotating base shell. There is no need to accurately align and dock, nor to control the tooling to clamp the workpiece. As the turntable type welding table rotates backward under the driving action of the transposition servo motor, the guiding push wheel contacts and forms a rolling connection with the contraction track. After the guiding push wheel enters the arc-shaped linkage track, the telescopic guiding block is pushed towards the center direction of the turntable type welding table as a whole through the limitation of the arc-shaped linkage track. The pushing round head centering push block pushes the cylindrical rotating base shell towards the center of the armrest skeleton positioning table, making it fit with the arc-shaped edge of the support rod end. At the same time, as the sliding connection between the pushing frame inclined groove and the linkage guide rod pushes the side pushing frame towards the center of the armrest skeleton positioning table, the rod body side clamping plate and the round head side clamping plate respectively fix and align the support rod and the rotating base shell, realizing the automatic docking, alignment and fixation of the support rod and the rotating base shell, without manual operation, saving time and effort.

[0016] In addition, the armrest skeleton positioning table in the present invention is installed in the turntable type welding table. As the turntable type welding table rotates, the bottom of the armrest skeleton positioning table maintains horizontal through the rolling connection between the balance support wheel and the horizontal orientation ring. When the armrest skeleton positioning table moves to a position close to the welding robot, the balance support wheel rolls on the tilting inclined plate and tilts along with the inclined surface structure of the tilting inclined plate, rotating the armrest skeleton positioning table and automatically flipping the side of the automotive armrest skeleton towards the welding robot, so as to facilitate the welding robot to carry out welding more quickly and accurately. Compared with the existing fixed welding tooling, it is provided with a unitary flipping function of the workpiece, which can drive the flipping of the workpiece along with the rotation and material feeding of the tooling, avoiding the situation of missing welding due to welding dead angles caused by the orientation problem of the armrest skeleton. Description of the Drawings

[0017] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings of the embodiments will be briefly introduced below.

[0018] The accompanying drawings in the following description only relate to some embodiments of the present invention and do not limit the present invention.

[0019] In the accompanying drawings: Figure 1 A schematic diagram showing the overall structure of the present application is shown; Figure 2 A schematic diagram showing the structure behind the tooling support platform of the present application is shown; Figure 3 Shows the present application Figure 2 of the top view structure diagram; Figure 4 A schematic diagram showing the structure inside the inner table groove of the present application is shown; Figure 5 A schematic diagram showing the structure of the horizontal orientation ring of the present application is shown; Figure 6 A schematic diagram showing the structure of the arc-shaped linkage track of the present application is shown; Figure 7 A schematic diagram showing the structure at the bottom of the rotary disk welding table of the present application is shown; Figure 8 A schematic diagram showing the structure at the bottom of the armrest skeleton positioning table of the present application is shown; Figure 9 A schematic diagram showing the structure above the armrest skeleton positioning table of the present application is shown; Figure 10 A schematic diagram showing the structure when the round head centering push block and the side push frame fix the armrest skeleton of the present application is shown; Figure 11 Shows the present application Figure 10 of the upper structure diagram; Figure 12 A schematic diagram showing the structure when the telescopic guide block is separated from the side push frame of the present application is shown; Figure 13 A schematic diagram showing the structure of the armrest skeleton positioning table of the present application is shown; Figure 14 Shows the present application Figure 4 of the partial enlarged structure diagram at A; Figure 15 Shows the present application Figure 4 of the partial enlarged structure diagram at B.

[0020] Reference numerals: 1. Tooling support platform; 101. Inner table groove; 103. Horizontal orientation ring; 104. Tilting inclined plate; 105. Arc linkage track; 106. Shrinkage track; 2. Transposition servo motor; 3. Rotary disk welding table; 4. Armrest skeleton positioning table; 401. Positioning table coupling shaft; 402. Linkage guide rod; 403. Guide plate through hole; 404. Lower guide seat; 405. Shrinkage guide rod; 406. Reset tension spring; 5. Skeleton rod limit seat; 501. Limit flange; 502. Limit side rod; 6. Balance adjustment table; 601. Balance push plate; 602. Balance guide rod; 603. Balance push spring; 604. Balance support wheel; 7. Telescopic guide block; 701. Horizontal sliding groove; 702. Radial sliding groove; 703. Guide block push rod; 704. Guide push wheel; 8. Round head centering push block; 9. Side push frame; 901. Push frame inclined groove; 902. Rod body side splint; 903. Round head side splint; 904. Push frame guide plate. Detailed implementation mode

[0021] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are some, but not all, of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the described embodiments of the present invention without creative efforts shall fall within the scope of protection of the present invention.

[0022] Embodiment 1: Please refer to Figures 1 to 15 : The present invention provides an automatic positioning welding tool for an armrest skeleton, comprising: a tooling support platform 1, an inner table groove 101 is opened above the tooling support platform 1, a transposition servo motor 2 is installed inside the inner table groove 101, the transposition servo motor 2 is connected to and drives a rotary disk welding table 3, six armrest skeleton positioning platforms 4 are movably installed on the rotary disk welding table 3, a skeleton rod limiting seat 5 is fixedly connected to the inner end of the upper surface of the armrest skeleton positioning platform 4, a telescopic guide block 7 is slidably connected to the bottom of the armrest skeleton positioning platform 4, a guide block push rod 703 is fixedly connected to the outer end of the telescopic guide block 7, a guide push wheel 704 is rotatably installed on the guide block push rod 703 through a bearing, an arc-shaped linkage track 105 is installed above the tooling support platform 1 through a bracket, the guide push wheel 704 is in rolling connection with the arc-shaped linkage track 105, a round head centering push block 8 is fixedly connected to the upper end of the guide block push rod 703, two side push frames 9 are movably connected above the armrest skeleton positioning platform 4, a push frame guide plate 904 is fixedly connected to the lower part of the side push frame 9, the push frame guide plate 904 is slidably connected to the telescopic guide block 7, rod body side clamping plates 902 and round head side clamping plates 903 are fixedly connected to the upper part of the side push frame 9, a push frame inclined groove 901 is obliquely opened on the side push frame 9, two linkage guide rods 402 are fixedly connected above the armrest skeleton positioning platform 4, and the linkage guide rods 402 are slidably connected inside the push frame inclined groove 901; the rotary base housing and the support rod are placed through the armrest skeleton positioning platform 4. Under normal conditions, the telescopic guide block 7 is pulled in a direction away from the center of the rotary disk welding table 3 by a return spring 406, and the round head centering push block 8 and the side push frame 9 are located at the edge position of the armrest skeleton positioning platform 4, leaving sufficient space for the placement of the rotary base housing and the support rod. During feeding, the rotary base housing and the support rod are manually placed above the armrest skeleton positioning platform 4, so that the docking end of the support rod faces the rotary base housing. As the rotary disk welding table 3 rotates backward under the driving action of the transposition servo motor 2, the guide push wheel 704 contacts and forms a rolling connection with the contraction track 106. After the guide push wheel 704 enters the arc-shaped linkage track 105, the entire telescopic guide block 7 is pushed toward the center of the rotary disk welding table 3 through the limitation of the arc-shaped linkage track 105, and the round head centering push block 8 is pushed to push the rotary base housing in the shape of a cylinder toward the center of the armrest skeleton positioning platform 4, so that it fits with the arc-shaped edge of the end of the support rod. At the same time, as the push frame inclined groove 901 and the linkage guide rod 402 are slidably connected, the side push frame 9 is pushed toward the center of the armrest skeleton positioning platform 4, and the support rod and the rotary base housing are fixed and aligned respectively through the rod body side clamping plates 902 and the round head side clamping plates 903, realizing the automatic docking, alignment and fixation of the support rod and the rotary base housing. Compared with the existing armrest skeleton welding tooling, there is no need for manual precise placement and centering of the armrest skeleton, and the operation of controlling the positioning mechanism in the tooling to clamp the armrest skeleton is also omitted, making the centering and positioning effects more accurate and the feeding and discharging efficiency higher.

[0023] In an embodiment of the present disclosure, at both ends of the arc-shaped linkage track 105, there are straight extensions of the retractable track 106, and the inner surfaces of the arc-shaped linkage track 105 and the retractable track 106 are arc-shaped structures; through the setting of the retractable track 106, the guiding push wheel 704 contacts and rolls with the retractable track 106 before rotating into the arc-shaped linkage track 105, and gradually enters the arc-shaped linkage track 105 along with the retractable track 106. During this process, the guiding push wheel 704 is slowly pushed towards the center of the rotary disk welding table 3, slowly triggering the clamping structure to clamp and fix the armrest skeleton, so that the armrest skeleton is fixed above the armrest skeleton positioning table 4 when entering the welding area, and when leaving the welding area, the guiding push wheel 704 disengages from the arc-shaped linkage track 105, causing the telescopic guiding block 7 to move outwards under the retraction action of the return spring 406, slowly releasing the clamping and fixing of the armrest skeleton.

[0024] In an embodiment of the present disclosure, at one end of the armrest skeleton positioning table 4 facing the center of the rotary disk welding table 3, there is a fixed connection of a positioning table connecting shaft 401. The positioning table connecting shaft 401 is rotatably connected to the rotary disk welding table 3 through a bearing. There are two guide plate through holes 403 longitudinally penetrating through the armrest skeleton positioning table 4. Below the armrest skeleton positioning table 4, a lower guide seat 404 is installed by screws. Below the lower guide seat 404, two retractable guide rods 405 are installed by screws. At the bottom of the lower guide seat 404, there are two fixed connections of return springs 406. The other ends of the return springs 406 are fixedly connected to the telescopic guiding block 7. The telescopic guiding block 7 is horizontally penetrated with a horizontal sliding groove 701, and a radial sliding groove 702 is opened above the telescopic guiding block 7. The radial sliding groove 702 is slidably connected to the retractable guide rod 405; through the sliding connection between the radial sliding groove 702 and the retractable guide rod 405, a guiding effect is achieved, and the telescopic guiding block 7 is kept tightened by the return spring 406.

[0025] In an embodiment of the present disclosure, the upper half of the push frame guide plate 904 movably passes through the guide plate through hole 403, and the lower half of the push frame guide plate 904 is slidably connected in the horizontal sliding groove 701. With the cooperation of the push frame inclined groove 901 and the linkage guide rod 402, when the side push frame 9 moves linearly along the radial direction of the rotary disk welding table 3 under the push of the telescopic guiding block 7, it can drive the side push frame 9 to move along the direction of the push frame guide plate 904, realizing the synchronous clamping of the side of the armrest skeleton.

[0026] In an embodiment of the present disclosure, a limiting flange 501 is formed by bending the upper end of the skeleton rod limiting seat 5. Limiting side rods 502 are fixedly connected to both sides of the bottom of the skeleton rod limiting seat 5. Both the rod body side clamping plate 902 and the round head side clamping plate 903 are in an "L" shape structure, and the round head side clamping plate 903 is in an arc shape structure. When the side push frame 9 moves linearly in the radial direction of the rotary disk type welding table 3 under the push of the telescopic guide block 7, the side push frame 9 can be driven to move along the direction of the push frame guide plate 904, so that the rod body side clamping plate 902 and the round head side clamping plate 903 above the two side push frames 9 move synchronously towards the center direction of the side push frame 9, clamping and centering the automotive armrest skeleton rotating base shell and the support rod above the armrest skeleton positioning table 4 simultaneously.

[0027] Embodiment 2: On the basis of Embodiment 1, a balance adjustment table 6 is provided at the bottom of the armrest skeleton positioning table 4. A balance guide rod 602 is slidably connected below the balance adjustment table 6. The lower end of the balance guide rod 602 is fixedly connected with a balance push plate 601. A balance push spring 603 is fixedly connected between the balance push plate 601 and the balance adjustment table 6. A balance support wheel 604 is rotatably connected to the lower surface of the balance push plate 601. A horizontal orientation ring 103 is fixedly connected inside the inner table groove 101 through a bracket. Two tilting inclined plates 104 are formed by bending on the horizontal orientation ring 103. The balance support wheel 604 is in rolling connection with the upper surface of the horizontal orientation ring 103. Under normal conditions, the balance of the armrest skeleton positioning table 4 is maintained through the rolling connection between the balance support wheel 604 and the horizontal orientation ring 103, so that the armrest skeleton positioning table 4 is always parallel to the horizontal orientation ring 103. When the armrest skeleton positioning table 4 rotates and moves to the position of the tilting inclined plate 104 along with the rotary disk type welding table 3, the balance guide rod 602 contracts towards the inside of the balance push plate 601, compressing the balance push spring 603, and the balance support wheel 604 fits with the tilting inclined plate 104, so that the armrest skeleton positioning table 4 rotates to an angle parallel to the tilting inclined plate 104, realizing the rotation and direction change of the workpiece, making the side of the armrest skeleton face the welding robot, and enabling the welding robot to have a larger operating angle, avoiding the situation of welding dead angles due to the fixed orientation of the armrest skeleton.

[0028] Working principle of this embodiment: The intelligent welding robot is located behind the tooling support platform 1. During the welding and assembly of the rotating base housing and the support rod in the automotive armrest skeleton, the pneumatic displacement servo motor 2 drives the rotary disc welding table 3 to rotate counterclockwise intermittently through the displacement servo motor 2. The single rotation angle is 60 degrees. Manually place the rotating base housing and the support rod above the armrest skeleton positioning table 4, so that the cylindrical rotating base housing is located at the outer edge of the armrest skeleton positioning table 4, and the support rod is located in the middle of the armrest skeleton positioning table 4. The arc-shaped docking port of the support rod faces the rotating base housing. As the rotary disc welding table 3 rotates counterclockwise, the guiding push wheel 704 at this position contacts the contraction track 106 and slowly enters the arc-shaped linkage track 105 along the contraction track 106. During this process, the guiding push wheel 704 moves towards the center of the rotary disc welding table 3, driving the telescopic guiding block 7 to slide. The telescopic guiding block 7 drives the round head centering push block 8 to push the cylindrical rotating base housing towards the center of the armrest skeleton positioning table 4, making it fit with the arc-shaped edge of the support rod end. As the telescopic guiding block 7 moves, it drives the side push frame 9 to move towards the center of the rotary disc welding table 3. Under the sliding connection between the inclined slot 901 of the push frame and the linkage guide rod 402, the side push frame 9 is pushed towards the center of the armrest skeleton positioning table 4. Through the cooperation of the rod body side clamping plate 902, the round head side clamping plate 903 and the round head centering push block 8, the support rod is fixed and aligned with the rotating base housing, realizing the automatic docking, alignment and fixation of the support rod and the rotating base housing. When the armrest skeleton positioning table 4 moves to the right side of the intelligent welding robot, the balance support wheel 604 contacts the tilting inclined plate 104, causing the armrest skeleton positioning table 4 to rotate a certain angle, so that one side of the automotive armrest skeleton above the armrest skeleton positioning table 4 faces the welding robot. The welding robot welds the seam of this armrest skeleton, and at the same time welds the upwardly inclined weld seam in the armrest skeleton above the armrest skeleton positioning table 4 in the tilting inclined plate 104 on the left side of the welding robot, and welds the armrest skeleton in the armrest skeleton positioning table 4 directly in front of the welding robot. Along with the continuous intermittent movement of the rotary disc welding table 3, the cyclic welding and assembly of the armrest skeleton is realized. The completed welded armrest skeleton is conveyed forward from the left side as the rotary disc welding table 3 rotates, and the guiding push wheel 704 is disengaged from the arc-shaped linkage track 105, so that the telescopic guiding block 7 is reset under the pulling force of the reset tension spring 406, and the round head centering push block 8 and the side push frame 9 automatically move away from the armrest skeleton, facilitating manual collection of the finished armrest skeleton.

[0029] In this article, the following points need attention: 1. The attached drawings of the embodiments of the present disclosure only relate to the structures involved in the embodiments of the present disclosure, and other structures can refer to the general design.

[0030] 2. Without conflict, the embodiments of the present disclosure and the features in the embodiments can be combined with each other to obtain new embodiments.

[0031] The above are only specific embodiments of the present disclosure, but the protection scope of the present disclosure is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present disclosure can easily think of changes or substitutions, which should all be covered within the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure shall be subject to the protection scope of the claims.

Claims

1. An automatic positioning welding tooling for armrest skeletons, comprising: Tooling support table (1), an inner table groove (101) is opened above the tooling support table (1), a commutation servo motor (2) is installed inside the inner table groove (101), the commutation servo motor (2) is connected to and drives a rotary disc welding table (3), and it is characterized in that six armrest skeleton positioning tables (4) are movably installed on the rotary disc welding table (3), a skeleton rod limiting seat (5) is fixedly connected to the inner end of the upper surface of the armrest skeleton positioning table (4), a telescopic guide block (7) is slidably connected to the bottom of the armrest skeleton positioning table (4), a guide block push rod (703) is fixedly connected to the outer end of the telescopic guide block (7), a guide push wheel (704) is rotatably installed on the guide block push rod (703) through a bearing, an arc-shaped linkage track (105) is installed above the tooling support table (1) through a bracket, the guide push wheel (704) is in rolling connection with the arc-shaped linkage track (105), a round head centering push block (8) is fixedly connected to the upper end of the guide block push rod (703), two side push frames (9) are movably connected above the armrest skeleton positioning table (4), a push frame guide plate (904) is fixedly connected to the lower part of the side push frame (9), the push frame guide plate (904) is slidably connected to the telescopic guide block (7), rod body side clamping plates (902) and round head side clamping plates (903) are fixedly connected to the upper part of the side push frame (9), a push frame inclined groove (901) is obliquely opened on the side push frame (9), and two linkage guide rods (402) are fixedly connected above the armrest skeleton positioning table (4), and the linkage guide rods (402) are slidably connected inside the push frame inclined groove (901).

2. The automatic positioning armrest skeleton welding tooling according to claim 1, characterized in that a balance adjustment table (6) is provided at the bottom of the armrest skeleton positioning table (4), a balance guide rod (602) is slidably connected below the balance adjustment table (6), a balance push plate (601) is fixedly connected to the lower end of the balance guide rod (602), a balance push spring (603) is fixedly connected between the balance push plate (601) and the balance adjustment table (6), and a balance support wheel (604) is rotatably connected to the lower surface of the balance push plate (601).

3. The automatic positioning armrest skeleton welding tooling according to claim 2, characterized in that a horizontal orientation ring (103) is fixedly connected inside the inner table groove (101) through a bracket, two tipping inclined plates (104) are formed by bending the horizontal orientation ring (103), and the balance support wheel (604) is in rolling connection with the upper surface of the horizontal orientation ring (103).

4. The automatic positioning armrest skeleton welding tooling according to claim 1, characterized in that the two ends of the arc-shaped linkage track (105) extend linearly to form a contraction track (106), and the inner surfaces of the arc-shaped linkage track (105) and the contraction track (106) are arc-shaped structures.

5. The automatic positioning armrest skeleton welding tooling according to claim 1, characterized in that One end of the armrest frame positioning table (4) facing the center of the rotary disc welding table (3) is fixedly connected with a positioning table coupling shaft (401). The positioning table coupling shaft (401) is rotationally connected to the rotary disc welding table (3) through a bearing. Two guide plate through-holes (403) are longitudinally formed through the armrest frame positioning table (4).

6. The automatic positioning armrest frame welding tooling according to claim 5, characterized in that A lower guide seat (404) is installed below the armrest frame positioning table (4) by screws. Two shrinkage guide rods (405) are installed below the lower guide seat (404) by screws. Two reset tension springs (406) are fixedly connected to the bottom of the lower guide seat (404). The other ends of the reset tension springs (406) are fixedly connected to the telescopic guide block (7).

7. The automatic positioning armrest frame welding tooling according to claim 6, characterized in that A transverse chute (701) is longitudinally formed through the telescopic guide block (7). A radial chute (702) is formed above the telescopic guide block (7). The radial chute (702) is slidably connected to the shrinkage guide rod (405).

8. The automatic positioning armrest frame welding tooling according to claim 7, characterized in that The upper half of the push frame guide plate (904) movably passes through the guide plate through-hole (403). The lower half of the push frame guide plate (904) is slidably connected in the transverse chute (701).

9. The automatic positioning armrest frame welding tooling according to claim 1, characterized in that The upper end of the frame rod limit seat (5) is bent to process a limit flange (501). Two limit side rods (502) are fixedly connected to both sides of the bottom of the frame rod limit seat (5).

10. The automatic positioning armrest frame welding tooling according to claim 1, characterized in that Both the rod body side clamping plate (902) and the round head side clamping plate (903) are in an "L" shape structure. The round head side clamping plate (903) is in an arc shape structure.

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