Multi-batten chair back welding tool

Abstract

The utility model provides a multi-batten chair back structure welding tool which comprises an installation base body, a tool platform body and a positioning tool assembly arranged on the tool platform body, the tool platform body is connected with the installation base body in a rotating mode, the positioning tool assembly is provided with a main positioning assembly and an auxiliary tool positioning assembly, and the main positioning assembly is connected with the auxiliary tool positioning assembly in a rotating mode. The main positioning assembly and the auxiliary tool positioning assembly are both connected to the tool platform body, the main positioning assembly comprises a first positioning mechanism and a second positioning mechanism, and the first positioning mechanism and the second positioning mechanism form a first positioning space on the tool platform body; according to the chair back structure welding tool provided by the utility model, a welding workpiece of a multi-batten structure can be automatically formed and positioned, the positioning is stable, automatic welding integration is realized, and high welding efficiency is ensured.

Description

TECHNICAL FIELD

[0001] The utility model relates to environmental equipment production technical field, specifically related to a kind of chair back welding tool for multi-board and the automatic welding method of chair back of multi-board. BACKGROUND

[0002] It is known that in the field of industrial automatic production, the trend of industrial automation and intelligent production is also more and more common, so with the increasing updating and progress of production technology, the requirements for intelligent processing equipment applied in various fields are also higher and higher, for example, in the field of welding processing production, in order to ensure the welding effect and welding efficiency, positioning before welding is needed on the tooling platform when welding workpieces, in the welding process of some special structure workpieces, manual positioning or semi-automatic positioning is usually used, and then welding is carried out by manual welding method to ensure the welding effect of each welding surface on the special workpiece, for example, when facing the workpiece welding of multi-board seat back structure, the welding tool for chair back has simple positioning tooling structure and cannot be positioned in each direction, because there are many boards to be welded, the distance interval between each board and the connection between the head and tail cannot be deviated, and the structure during welding must be stable, some tooling needs to be manually turned to adjust the welding surface when double-sided welding is carried out after positioning, simple positioning tooling is only suitable for positioning of small workpieces, and when positioning large workpieces, the positioning structure is not stable enough and cannot be positioned automatically, resulting in low production efficiency, and the daily output can only reach three or so, if manual welding is used, the worker's skin is easy to be burned and injured, causing skin disease and harm to the body, therefore, a multi-board chair back welding tool is needed, which can automatically position the welding of cylindrical structure, is stable in positioning, realizes automatic welding integration, ensures the welding efficiency of multi-board chair back welding tool. SUMMARY

[0003] Therefore, it is necessary to provide a chair back welding tool for multi-board, which can automatically position the welding of multi-board structure, is stable in structure and ensures the welding efficiency.

[0004] In order to solve the above technical problems, the utility model provides a kind of multi-batten's chair back structure welding tool, including mounting seat body, tool platform body and the positioning tool assembly being set on tool platform body, the tool platform body is rotatably connected with the mounting seat body, the positioning tool assembly is equipped with main positioning assembly and auxiliary tool positioning assembly, the main positioning assembly and auxiliary tool positioning assembly are all connected on tool platform body, the main positioning assembly includes first positioning mechanism and second positioning mechanism, the first positioning mechanism with the second positioning mechanism is formed with first positioning space on the tool platform body, the first positioning space is used to carry out the welding positioning of workpiece on first orientation surface, the auxiliary tool positioning assembly includes auxiliary positioning mechanism, the auxiliary positioning mechanism is formed with second positioning space between first positioning mechanism and second positioning mechanism on tool platform body, and the second positioning space is used to assist main positioning assembly to carry out the welding positioning of workpiece on second orientation surface.

[0005] Preferably, the first platform welding surface and the second platform welding surface are provided on the tool platform body, the main positioning assembly is arranged on the first platform welding surface, the auxiliary tool positioning assembly is arranged on the second platform welding surface, and the first platform welding surface and the second platform welding surface are adjacent surfaces arranged in opposite directions.

[0006] Preferably, the first positioning mechanism and the second positioning mechanism are arranged at the upper and lower ends of the first platform welding surface respectively, the structure of the first positioning mechanism is the same as that of the second positioning structure, and the first positioning mechanism and the second positioning structure are respectively used for positioning the upper and lower ends of the workpiece, the first positioning mechanism includes a long rod positioning piece and a welding rod positioning piece, the long rod positioning piece and the welding rod positioning piece are arranged at intervals, the long rod positioning piece is used for tightly positioning the workpiece, and the welding rod positioning piece is used for interval limiting positioning of the workpiece.

[0007] Preferably, the long rod positioning piece includes a tightly pressing long rod body and a power driven piece, the two ends of the tightly pressing long rod body are connected with the power driven piece through a connecting seat block, one end of the connecting seat block is provided with a connecting notch, the connecting notch is used for connecting the tightly pressing long rod body, the other end surface of the connecting seat block is connected with one end of a connecting shaft, the other end of the connecting shaft is connected with the power output end of the power driven piece, and a plurality of threaded deep holes are uniformly distributed on the surface of the tightly pressing long rod body.

[0008] Preferably, the welding rod positioning piece includes a welding rod interval division column body and a lever cylinder positioning unit group, the welding rod interval division column body is arranged at a position close to the lever cylinder positioning unit group, the welding rod interval division column body includes welding rod interval division column individuals, the welding rod interval division column individuals are provided with a plurality of welding rod interval division column individuals, every two welding rod interval division column individuals are arranged at intervals on the same horizontal line to form a batten interval position, a plurality of batten interval positions are formed for interval positioning of welding batten.

[0009] Preferably, the lever cylinder positioning unit group comprises a plurality of lever cylinder positioning members, each of which is arranged at intervals, and each of which is provided with a locking lever and a cylinder element. The bottom of the cylinder element is connected to the end position of one end of the first platform welding surface through a connecting main plate member, which comprises a connecting main plate and a positioning seat block. The bottom surface of the positioning seat block is connected to the connecting main plate, and the cylinder element is arranged adjacent to the positioning seat block. An arc-shaped groove is formed on the upper surface of the positioning seat block, which is used to correspond to the accommodation of part of the plate strip welding body.

[0010] Preferably, the lever cylinder positioning member is further provided with a T-shaped seat block. One end of the locking lever is connected to the cylinder element through a lever lock buckle. A connecting port is formed on one end of the lever lock buckle, and a connecting space is formed on the connecting port. The connecting space is used to correspond to the connection of the top of the T-shaped seat block. Limiting through holes are formed on the outer surface of the connecting space. The lever lock buckle is used to form a locking support force below the middle position of the locking lever.

[0011] Preferably, the auxiliary positioning mechanism comprises a first auxiliary positioning member and a second auxiliary positioning member, which are arranged at intervals on both sides of the second platform welding surface. The first auxiliary positioning member comprises an auxiliary circular rod body and a pushing power member, and the two ends of the auxiliary circular rod body are connected to the output end of the pushing power member through a connecting seat plate.

[0012] Preferably, a circular counterbore is formed on the middle plate surface of the connecting seat plate, which is used to connect the auxiliary circular rod body in interference fit. One end of the connecting seat plate is an abutting positioning surface, and the other end is provided with a connecting circular hole, which is used to connect the power output shaft end of the pushing power member.

[0013] Preferably, a middle pressing rod is arranged between the first auxiliary positioning member and the second auxiliary positioning member, and the middle pressing rod is connected to the middle position of the second platform welding surface through a connecting plate. The both ends of the tool platform body are further provided with side orientation positioning members, which comprise telescopic positioning rods and cylinder driving members. One end of the telescopic positioning rod is a positioning contact surface, and the other end is connected to the power output end of the cylinder driving member.

[0014] The utility model discloses a beneficial effect is: the utility model provides a plurality of board's chair back structure welding frock, be provided with mounting seat body, frock platform body and positioning frock subassembly, and positioning frock subassembly is equipped with main positioning assembly and auxiliary frock positioning assembly, and main positioning assembly includes first positioning mechanism and second positioning mechanism, and first positioning mechanism and second positioning mechanism form first positioning space on frock platform body, and first positioning space is used for welding positioning on the first orientation plane of work piece, auxiliary frock positioning assembly includes auxiliary positioning mechanism, and auxiliary positioning mechanism forms second positioning space between first positioning mechanism and second positioning mechanism on frock platform body, and second positioning space is used for welding positioning on the second orientation plane of work piece to auxiliary main positioning assembly, the utility model provides chair back structure welding frock can be positioned to the welding work piece of the self -forming of plurality of board body structure, and positioning is stable, and achieves self -welding integration, guarantees the chair back welding frock of plurality of board of high welding efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0015] The above and other objects, features and advantages of the present application will become more clearly understood from the following more particular description, accordingly, the present application will be described with reference to the following preferred but non-limiting examples of implementation. In the drawings, the same reference numerals are used to refer to same elements throughout. The drawings were not necessarily made to scale and are intended for use in illustration of the embodiments of the present application and presenting the idea of the present application.

[0016] Figure 1 It is another angle schematic drawing of the utility model multi -board's chair back structure welding frock;

[0017] Figure 2 It is the plane schematic drawing of the utility model multi -board's chair back structure welding frock;

[0018] Figure 3 It is another angle schematic drawing of the utility model multi -board's chair back structure welding frock;

[0019] Figure 4 It is the reverse schematic drawing of the utility model multi -board's chair back structure welding frock.

[0020] In the figure: 1, mounting seat body; 2, tooling platform body; 21, first platform welding surface; 22, second platform welding surface; 3, first positioning mechanism; 31, long rod positioning piece; 32, electrode positioning piece; 33, compression long rod body; 330, threaded deep hole; 34, connecting seat block; 35, connecting shaft; 36, power driving piece; 37, electrode spacing column body; 38, electrode spacing column individual; 380, batten spacing position; 4, second positioning mechanism; 5, first positioning space; 6, auxiliary positioning mechanism; 60, second positioning space; 61, auxiliary round rod body; 62, pushing power piece; 63, connecting seat plate 7, rod cylinder positioning; 71, locking lever; 72, lever lock; 73, lever lock; 8, connecting main plate; 9, positioning seat block; 90, arc-shaped groove; 10, T-shaped seat block; 11, middle compression rod; 12, telescopic positioning rod; 13, cylinder driving piece. DETAILED DESCRIPTION

[0021] In order to facilitate the understanding of the present application, the present application will be described more fully below with reference to the relevant drawings.

[0022] It should be noted that when an element is considered to be "connected" to another element, it can be directly connected to the other element and integrated as a whole, or there can be a middle element. The terms "mounting", "one end", "the other end" and the like used herein are only for the purpose of illustration.

[0023] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this technology belongs. The terms used in the specification herein are only for the purpose of describing specific embodiments and are not intended to limit the present application. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0024] Reference Figures 1-4The preferred embodiment of the utility model provides a kind of chair back structure welding tool of multiple batten, including mounting seat body 1, tool platform body 2 and the positioning tool assembly being set on tool platform body 2, tool platform body 2 is rotationally connected with mounting seat body 1, tool platform body 2 can be overturned in 360 degree range on mounting seat body, positioning tool assembly is equipped with main positioning assembly and auxiliary tool positioning assembly, main positioning assembly and auxiliary tool positioning assembly are all connected on tool platform body 2, main positioning assembly includes first positioning mechanism 3 and second positioning mechanism 4, first positioning mechanism 3 and second positioning mechanism 4 are formed with first positioning space 5 on tool platform body 2, first positioning space is used to carry out the welding positioning of workpiece on first orientation plane, the auxiliary tool positioning assembly including auxiliary positioning mechanism 6 is formed between first positioning mechanism and second positioning mechanism on tool platform body 2, second positioning space 60, second positioning space 60 is used to assist main positioning assembly and carry out the welding positioning of workpiece on second orientation plane, equivalent to the positioning before welding of batten body on the front and back of to be welded, guarantee the welding effect of multiple welds on the welding surface formed by multiple battens, and the positioning structure before welding is stable, guarantee good welding effect.

[0025] Reference Figures 1-4 In further preferred embodiments, the tool platform body 2 is provided with a first platform welding surface 21 and a second platform welding surface 22, the main positioning assembly is arranged on the first platform welding surface 21, and the auxiliary tool positioning assembly is arranged on the second platform welding surface 22. The first platform welding surface 21 and the second platform welding surface 22 are adjacent surfaces arranged in opposite directions. Specifically, the tool platform body is arranged to be reversible for welding on both sides, enabling automatic welding of the workpiece with multiple battens without manual operation.

[0026] Reference Figures 1-4As a further preferred embodiment, the first positioning mechanism 3 and the second positioning mechanism 4 are respectively disposed at the upper and lower ends of the welding surface 21 of the first platform, that is, forming a first positioning surface space on the front of the tooling platform body 2, which firmly positions the chair back-shaped multi-slat welded body and improves the welding effect. The structure of the first positioning mechanism 3 is the same as that of the second positioning mechanism 4, and they are used to position the upper and lower ends of the workpiece respectively. Specifically, when performing welding work, the workpieces to be faced are multi-slat park chair back structures. Specifically, the park chair back structure has 28 slats and many welding points. There are more than 210 weld beads formed, so the slats are positioned in sections at both the top and bottom of the chair back. The first positioning mechanism 3 includes a long rod positioning component 31 and a welding rod positioning component 32. The long rod positioning component 31 and the welding rod positioning component are set at intervals. The long rod positioning component 31 is used to press and position the workpiece, and the welding rod positioning component 32 is used to position the workpiece at intervals. Because there are many slats to be welded, the long rod positioning component 31 and the welding rod positioning component 32 form two points at the beginning or end of multiple slats for pre-welding positioning, ensuring that the positioning of each slat is stable.

[0027] refer to Figures 1-4 As a further preferred embodiment, the long rod positioning component 31 includes a clamping long rod body 33 and a power drive component. Both ends of the clamping long rod body 33 are connected to the power drive component via connecting blocks 34. When multiple strips are arranged sequentially and spaced out on the tooling platform, the clamping long rod body 33 forms a tight clamping effect on the head or tail of the strips on the tooling platform body 2, preventing strip displacement, ensuring no weld seams appear on the welding surface, and guaranteeing the welding effect. One end of the connecting block 34 is provided with a connecting notch for connecting the clamping long rod body. The clamping long rod body and the connecting block 34 can be an interference fit connection or a sealed connection. One end of the connecting shaft 35 is connected to the other end of the 34. The other end of the connecting shaft 35 is connected to the power output end of the power drive component 36. The power drive component 36 can be a cylinder-type drive component. Before positioning the slats, the clamping rod body 33 is lifted from the tooling platform by the cylinder to facilitate the placement of the slats. After each slat is positioned in the corresponding position, threaded deep holes 330 are evenly distributed on the surface of the clamping rod body 33. There are multiple threaded deep holes 330. The threaded deep holes 330 are used to insert shaft nails or screws, further forming a clamping and positioning point on the head or tail of each slat on the clamping rod body 33.

[0028] refer to Figures 1-4As a further preferred embodiment, the electrode positioning member 32 comprises an electrode spacing column body 37 and a lever cylinder positioning unit group, the electrode spacing column body 37 is arranged at a position close to the lever cylinder positioning unit group, the electrode spacing column body comprises electrode spacing column individuals 38, and each two electrode spacing column individuals are arranged on the same horizontal line to form an electrode spacing position 380, a plurality of electrode spacing positions are formed to position the welding plates, in the specific implementation, a robot can be used to automatically place each plate body, and the plurality of plate bodies to be welded are placed on each corresponding plate spacing position 380, the entire chair back is composed of 28 plate bodies, and after the plurality of plate bodies of a chair are positioned at intervals, 210 welding beads are formed, the plate spacing position 380 is arranged to uniformly position each plate body, to ensure that the positioning structure is stable, and then welding is smoothly performed, to realize self-positioning welding, reduce manual operation, and improve welding efficiency.

[0029] Reference Figures 1-4 As a preferred embodiment, the lever cylinder positioning unit group comprises a lever cylinder positioning member 7, a plurality of lever cylinder positioning members 7 are arranged at intervals, and the lever cylinder positioning members 7 are used to position the columnar plate, the head and the tail of the chair back structure are connected with the columnar plate, and the lever cylinder positioning members 7 can stably position the columnar plate on the plurality of plate bodies, connect each plate with the columnar plate, and prevent the welding surface from being displaced during welding. The lever cylinder positioning member 7 is provided with a locking lever 71 and a cylinder element 72, the locking lever 71 is a main positioning element, and the locking lever 71 is used to press the columnar plate body from the surface of the columnar plate body to tightly connect the columnar plate body with the plate, so that the welding surface is seamless, the bottom of the cylinder element 72 is connected to the end position of one end of the first platform welding surface through a connecting main plate, the connecting main plate comprises a connecting main plate 8 and a positioning seat block 9, the bottom surface of the positioning seat block 9 is connected with the connecting main plate 8, the connecting main plate 8 and the positioning seat block 9 are arranged to ensure that the connecting structure is stable, the overall positioning structure is more stable, and positioning is facilitated, and the cylinder element 72 is arranged adjacent to the positioning seat block 9, an arc-shaped groove 90 is formed in the upper surface of the positioning seat block 9, the arc-shaped groove 90 is used to correspondingly accommodate part of the plate welding body, and the arc-shaped groove 90 can accommodate part of the columnar plate body to stably position the columnar plate body.

[0030] Reference Figures 1-4As a further preferred embodiment, the lever cylinder positioning member 7 is further provided with a T-shaped seat block 10, the locking lever 71 is connected with the cylinder element through one end of a lever lock buckle 73, a connecting port is formed on one end of the lever lock buckle 73, a connecting space is formed on the connecting port, the connecting space is used for corresponding connection with the top of the T-shaped seat block 10, the T-shaped seat block 10 is provided for strengthening the connecting structure of the lever lock buckle, a limiting through hole is formed on the outer surface of the connecting space, the lever lock buckle 73 is used for forming a locking support force below the middle position of the locking lever, the stability of the locking structure of the locking lever 71 as a whole is strengthened, the cylindrical batten body is stably locked and positioned, the welding connection is facilitated, and the welding effect is improved.

[0031] With reference to Figures 1-4 In another embodiment, the auxiliary positioning mechanism 6 includes a first auxiliary positioning member and a second auxiliary positioning member, the first auxiliary positioning member and the second auxiliary positioning member are arranged at two sides of the second platform welding surface, the first auxiliary positioning member and the second auxiliary positioning member are the same in structure, the first auxiliary positioning member includes an auxiliary circular rod body 61 and a pushing power member 62, the two ends of the auxiliary circular rod body 61 are connected with the output end of the pushing power member through a connecting seat plate 63, the auxiliary circular rod body 61 is formed in compression positioning on the back of the tool platform body 2, and the pushing power member can be a hydraulic cylinder or a telescopic cylinder.

[0032] With reference to Figures 1-4 In a preferred embodiment, a circular counterbore is formed on the middle plate surface of the connecting seat plate 63, the circular counterbore is used for interference fit connection with the auxiliary circular rod body, the circular counterbore is provided for stably connecting the auxiliary circular rod body, one end of the connecting seat plate 63 is an abutting positioning surface, the other end is provided with a connecting circular hole used for connecting the power output shaft end of the pushing power member 62, when the hydraulic cylinder or the telescopic cylinder operates, the power can be transmitted to the auxiliary circular rod body 61, the auxiliary circular rod body 61 is pushed towards the batten body surface to be welded, and compression positioning operation is performed.

[0033] With reference to Figures 1-4In a further preferred embodiment, a middle pressing rod 11 is arranged between the first auxiliary positioning member and the second auxiliary positioning member, and the middle pressing rod 11 is connected to the middle position of the second platform welding surface through a connecting plate. The middle pressing rod 11 is arranged to cooperate with the first auxiliary positioning member and the second auxiliary positioning member to comprehensively press and position the plurality of board bodies. The both ends of the tool platform body 2 are further provided with side orientation positioning members, and the side orientation positioning members include telescopic positioning rods 12 and cylinder driving members 13. One end of the telescopic positioning rod 12 is a positioning contact surface, and the other end is connected with the power output end of the cylinder driving member. Under the action of the cylinder driving member 13, the telescopic positioning rod 12 is elongated and then acts on the both ends of the cylindrical board body. The telescopic positioning rods 12 on both sides limit and position the cylindrical board body, so that the cylindrical board body does not slide on the board body during the welding process, and the welding surface is prevented from having gaps or uneven welding surface, thereby affecting the welding effect.

[0034] Reference Figures 1-4 In a further preferred embodiment, a bending machine is further included. The bending machine is used to bend the chair back structure into a seat shape after the whole chair back structure is welded. Specifically, an R1 curved die is installed on the bending machine, and the equipment parameters are debugged. The welded chair surface is integrally bent at the knee position R1 curved surface. An R2 curved forming die is replaced, and the bending parameters are debugged. The chair surface that has been bent R1 curved surface is integrally bent R2 seat surface back curved surface for the second time. The whole chair surface is bent twice to complete the forming. After the whole chair back is formed, a support structure is installed at the bottom of the chair back.

[0035] The specific welding steps of the preferred embodiment of the utility model are as follows:

[0036] S1, start the robot automatic equipment, and position the multi-board chair back structure in sequence on the chair back structure welding tool before welding:

[0037] S2, after the multi-board chair back structure is positioned on the chair back structure welding tool, the welding program is set on the automatic welding equipment, and the welding program is debugged on the panel of the robot automatic equipment to weld the first surface of the chair back structure.

[0038] S3, the first surface of the chair back structure is welded and horizontally corrected. Whether the welding surface is flat and whether there is a gap is checked. Then, the chair back structure is flipped to the second welding surface for welding.

[0039] S4, after the second welding surface of the chair back structure is completed, the whole chair back structure is moved to the bending machine equipment by the robot automatic equipment. An R1 curved die is installed on the bending machine, and the equipment parameters are debugged.

[0040] S5, the chair surface of the welded chair back structure is bent at the knee position R1 curve, the R2 curve forming die is replaced, the bending parameters are adjusted on the bending machine, the chair surface with the R1 curve is bent for the second time to form the R2 seat surface back curve, the whole chair back structure is formed by twice bending, and the automatic welding of the chair back structure is completed;

[0041] The chair back structure welding tool is the chair back structure welding tool provided by the preferred embodiment, and the bending parameters include the bending angle of the chair surface, and the bending angle of the chair surface is set to 120-135°.

[0042] The chair back structure welding tool provided by the utility model has the advantages that the utility model provides a chair back structure welding tool with multiple boards, which is provided with a mounting seat body, a tool platform body and a positioning tool assembly, the positioning tool assembly is provided with a main positioning assembly and an auxiliary tool positioning assembly, the main positioning assembly comprises a first positioning mechanism and a second positioning mechanism, the first positioning mechanism and the second positioning mechanism form a first positioning space on the tool platform body, the first positioning space is used for welding positioning of a workpiece on a first orientation surface, the auxiliary tool positioning assembly comprises an auxiliary positioning mechanism, the auxiliary positioning mechanism forms a second positioning space between the first positioning mechanism and the second positioning mechanism on the tool platform body, and the second positioning space is used for welding positioning of the workpiece on a second orientation surface by the main positioning assembly, the chair back structure welding tool can independently form and position the welding workpiece of the multiple board body structure, is stable in positioning, can realize independent welding integration, and guarantees the chair back welding tool with multiple boards.

[0043] In the present application, unless otherwise explicitly specified and limited, the first feature is "on" or "under" the second feature, which can be direct contact between the first and second features, or indirect contact between the first and second features through an intermediate medium. Moreover, the first feature "above", "above" and "above" the second feature can be directly above or obliquely above the first feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" the second feature can be directly below or obliquely below the first feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0044] In the description of the specification, the description using the terms "preferred embodiment", "still another embodiment", "other embodiments", "specific example" or the like means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the specification, the illustrative expressions of the above terms are not necessarily directed to the same embodiment or example. Also, the specific features, structures, materials or characteristics described can be combined in an appropriate manner in any one or more embodiments or examples. In addition, the person skilled in the art can combine and combine the different embodiments or examples described in the specification and the features of the different embodiments or examples, without contradiction.

[0045] Although the embodiments of the present application have been shown and described above, it is understood that the above-described embodiments are exemplary and are not to be construed as limiting the present application, and the person skilled in the art can make changes, modifications, replacements and variations to the above-described embodiments within the scope of the present application.

Claims

1. A multi-slat chair back structure welding fixture, characterized by: Including the mounting seat body, the tooling platform body and the positioning tool assembly arranged on the tooling platform body, the tooling platform body is rotatably connected with the mounting seat body, the positioning tool assembly is provided with a main positioning assembly and an auxiliary tool positioning assembly, the main positioning assembly and the auxiliary tool positioning assembly are connected on the tooling platform body, the main positioning assembly includes a first positioning mechanism and a second positioning mechanism, the first positioning mechanism and the second positioning mechanism form a first positioning space on the tooling platform body, the first positioning space is used for welding positioning of the workpiece on the first orientation plane, the auxiliary tool positioning assembly includes an auxiliary positioning mechanism, the auxiliary positioning mechanism forms a second positioning space between the first positioning mechanism and the second positioning mechanism on the tooling platform body, and the second positioning space is used for welding positioning of the workpiece on the second orientation plane by the main positioning assembly.

2. The multi-slat seat back structure welding fixture of claim 1, wherein, The tooling platform body is provided with a first platform welding surface and a second platform welding surface, the main positioning assembly is arranged on the first platform welding surface, the auxiliary tool positioning assembly is arranged on the second platform welding surface, and the first platform welding surface and the second platform welding surface are adjacent surfaces arranged in opposite directions.

3. The multi-slat seat back structure welding fixture of claim 1, wherein, The first positioning mechanism and the second positioning mechanism are arranged at the upper and lower ends of the first platform welding surface respectively, the structure of the first positioning mechanism is the same as that of the second positioning structure, and the first positioning mechanism and the second positioning structure are respectively used for positioning the upper and lower ends of the workpiece, the first positioning mechanism includes a long rod positioning piece and a welding rod positioning piece, the long rod positioning piece and the welding rod positioning piece are arranged at intervals, the long rod positioning piece is used for compressing and positioning the workpiece, and the welding rod positioning piece is used for interval limiting and positioning the workpiece.

4. The multi-slat seat back structure welding fixture of claim 3, wherein, The long rod positioning piece includes a compression long rod body and a power driven piece, both ends of the compression long rod body are connected with the power driven piece through a connecting seat block, one end of the connecting seat block is provided with a connecting notch, the connecting notch is used for connecting the compression long rod body, the other end surface of the connecting seat block is connected with one end of a connecting shaft, the other end of the connecting shaft is connected with the power output end of the power driven piece, and the surface of the compression long rod body is uniformly distributed with a plurality of threaded deep holes.

5. The multi-slat seat back structure welding fixture of claim 3, wherein, The welding rod positioning piece includes a welding rod interval division column body and a lever cylinder positioning unit group, the welding rod interval division column body is arranged at a position close to the lever cylinder positioning unit group, the welding rod interval division column body includes welding rod interval division column individuals, the welding rod interval division column individuals are provided with a plurality of welding rod interval division column individuals, and every two welding rod interval division column individuals are arranged at intervals on the same horizontal line to form a board interval position, a plurality of board interval positions are formed, and the board interval positions are used for interval positioning of the welding board.

6. The multi-slat seat back structure welding fixture of claim 5, wherein, The lever cylinder positioning unit group comprises lever cylinder positioning pieces, each of which is arranged at intervals, and each of which is provided with a locking lever and a cylinder element. The bottom of the cylinder element is connected to the end position of one end of the first platform welding surface through a connecting main plate piece, which comprises a connecting main plate and a positioning seat block. The bottom surface of the positioning seat block is connected to the connecting main plate, and the cylinder element is arranged adjacent to the positioning seat block. An arc-shaped groove is formed on the upper surface of the positioning seat block, which is used to correspond to the accommodation of part of the plate strip welding body.

7. The multi-slat seat back structure welding fixture of claim 6, wherein, The lever cylinder positioning piece is also provided with a T-shaped seat block. One end of the locking lever is connected to the cylinder element through a lever lock. A connecting port is formed on one end of the lever lock, and a connecting space is formed on the connecting port. The connecting space is used to correspond to the connection of the top of the T-shaped seat block. Limiting through holes are formed on the outer surface of the connecting space. The lever lock is used to form a locking support force below the middle position of the locking lever.

8. The multi-slat seat back structure welding fixture of claim 1, wherein, The auxiliary positioning mechanism comprises first and second auxiliary positioning pieces, which are arranged at intervals on both sides of the second platform welding surface. The first auxiliary positioning piece comprises an auxiliary circular rod body and a pushing power piece, and the two ends of the auxiliary circular rod body are connected to the output end of the pushing power piece through a connecting seat plate.

9. The multi-slat seat back structure welding fixture of claim 8, wherein, A circular counterbore is formed on the middle plate surface of the connecting seat plate, which is used to connect the auxiliary circular rod body by interference fit. One end of the connecting seat plate is an abutting positioning surface, and the other end is provided with a connecting circular hole, which is used to connect the power output shaft end of the pushing power piece.

10. The multi-slat seat back structure welding fixture of claim 9, wherein, A middle pressing rod is arranged between the first and second auxiliary positioning pieces, which is connected to the middle position of the second platform welding surface through a connecting plate. The both ends of the tool platform body are also provided with side orientation positioning pieces, which comprise telescopic positioning rods and cylinder driving pieces. One end of the telescopic positioning rod is a positioning contact surface, and the other end is connected to the power output end of the cylinder driving piece.

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