Light truck chair back framework welding tool structure

Abstract

The light truck chair back framework welding tool structure comprises a base, fixing assemblies used for fixing a side connecting plate assembly are arranged on the front side of the base in a bilateral symmetry mode, and an angle adjuster fixing assembly is installed on the portion, between the two fixing assemblies, of the front side of the base. A positioning pressing and clamping assembly is installed on the position, corresponding to the chair back framework, of the middle of the base, the fixing assembly comprises a vertically-arranged sliding push plate, the sliding push plate is arranged in the vertical longitudinal direction, and the sliding push plate is connected to the base in a sliding mode in the horizontal transverse direction; a pushing air cylinder used for driving the sliding push plate to slide is installed on the outer side of the sliding push plate on the base. The welding device is reasonable in design, the position of the side connecting plate assembly is fixed through the cooperation of the angle adjuster fixing assembly and the fixing assembly, and then the chair back framework is limited through the positioning pressing and clamping assembly, so that when the chair back framework and the side connecting plate assembly are welded, errors are avoided, the welding precision is guaranteed, specialized production is facilitated, and the production efficiency is improved.

Description

Technical Field

[0001] This utility model relates to a welding fixture structure for a light truck chair back frame. Background Technology

[0002] Currently, seats are an important component of automotive interiors. With the development of the automotive industry, people have increasingly higher requirements for the comfort and functionality of cars. In existing technology, light-duty truck seats still have an engine compartment under the cab. The seats are usually in contact with the cargo box, and their backrest frames are relatively low. Therefore, it is necessary to lengthen the overall backrest frame. However, during the production process, if the overall backrest frame is lengthened, there will be welding deviations in position when welding the side panel assembly due to the lack of corresponding tooling. In severe cases, there may even be defects in the strength of the weld joint, affecting the original reclining angle of the seat. Utility Model Content

[0003] In view of this, the purpose of this utility model is to overcome the shortcomings of the prior art and provide a welding fixture structure for a light truck chair back frame. The design is reasonable. The position of the side plate assembly is fixed by the cooperation of the angle adjuster fixing component and the fixing component. Then, the chair back frame is limited by the positioning clamp component, so that there will be no misalignment when the chair back frame and the side plate assembly are welded, ensuring the welding accuracy, facilitating professional production, and improving production efficiency.

[0004] This utility model is achieved by the following solution: a welding fixture structure for a light truck chair back frame: including a base, on the front side of the base, there are fixing components symmetrically arranged for fixing the side plate assembly, on the front side of the base between the two fixing components, an angle adjuster fixing component is installed, and on the middle part of the base corresponding to the chair back frame, a positioning clamping component is installed.

[0005] Furthermore, the fixing component includes a vertically arranged sliding push plate, which is arranged along the vertical longitudinal direction and slides horizontally on the base. A push cylinder for driving the sliding push plate to slide is installed on the outer side of the sliding push plate on the base.

[0006] Furthermore, the inner side of the sliding push plate is provided with several placement racks for placing the side plate assembly, and the inner side of the sliding push plate is provided with several positioning pins for positioning the side plate assembly.

[0007] Furthermore, a positioning block is installed on the inner side of the sliding push plate corresponding to the positioning pin, and a horizontally arranged L-shaped connecting block is installed on the side of the positioning block. The horizontal part of the L-shaped connecting block is fixed to the side of the positioning block, and the positioning pin is installed on the end of the horizontal longitudinal part of the L-shaped connecting block.

[0008] Furthermore, the base is provided with at least two sliding guide rails corresponding to each sliding push plate, and a sliding block is provided under the sliding push plate corresponding to the sliding guide rail. A sliding groove is provided on the bottom surface of the sliding block corresponding to the sliding guide rail.

[0009] Furthermore, the angle adjuster fixing assembly includes auxiliary fixing structures arranged symmetrically on the left and right sides. The auxiliary fixing structure includes a support frame, on which an auxiliary installation cylinder is installed. The telescopic end of the auxiliary installation cylinder faces the fixing assembly on the same side, and a limiting clamping plate for abutting against the inner side of the side plate assembly is installed on the telescopic end of the auxiliary installation cylinder.

[0010] Furthermore, the support frame includes a support base, on which a vertical support plate is mounted. The auxiliary mounting cylinder is horizontally mounted on one side of the support plate. On the other side of the support plate, a limiting mechanism for limiting the extreme distance of the extending clamping plate is mounted. The limiting mechanism is a horizontally arranged L-shaped limiting block. The end of the horizontal portion of the L-shaped limiting block is fixed to the support plate. The vertical portion of the L-shaped limiting block is located in front of the extension and retraction direction of the clamping plate. A rubber block is provided on the vertical portion of the L-shaped limiting block corresponding to the clamping plate.

[0011] Furthermore, the positioning clamping assembly includes several clamping mechanisms distributed along the frame of the chair back skeleton. Each clamping mechanism includes a limiting clamping block. The limiting clamping block is provided with a limiting clamping groove corresponding to the frame of the chair back skeleton. The limiting clamping block is installed on the base. A limiting pin is inserted into the bottom of the limiting clamping groove. A pressing mechanism is installed on the base next to the limiting clamping block.

[0012] Furthermore, the crimping mechanism also includes a vertically arranged crimping cylinder with its telescopic end facing upward. A hinge seat is provided on the cylinder sleeve of the crimping cylinder beside the telescopic end. A swing rod is rotatably connected to the hinge seat. A crimping claw is rotatably connected to the upper end of the swing rod. The middle part of the crimping claw is rotatably connected to the upper end of the swing rod. The crimping end of the crimping claw is located on the limiting pressure groove. The telescopic end of the crimping cylinder is rotatably connected to the non-crimping end of the crimping claw.

[0013] Furthermore, the crimping claw includes a crimping block, one end of which is provided with a crimping claw hinge seat. The swing rod is rotatably connected to the middle of the crimping claw hinge seat, the telescopic end of the crimping cylinder is rotatably connected to the end of the crimping claw hinge seat, and a crimping claw block is mounted on the other end of the crimping block.

[0014] Compared with the prior art, the present invention has the following advantages: it is reasonably designed, and the position of the side plate assembly is fixed by the cooperation of the angle adjuster fixing component and the fixing component. Then, the backrest frame is limited by the positioning clamp component, so that there will be no errors when the backrest frame and the side plate assembly are welded, ensuring the welding accuracy, facilitating professional production, and improving production efficiency. Attached Figure Description

[0015] Figure 1 This is a top view of an embodiment of the present invention.

[0016] Figure 2 This is a schematic diagram of the fixing component structure in an embodiment of the present invention;

[0017] Figure 3 1. A schematic diagram of the fixing component structure (side plate assembly) of an embodiment of this utility model;

[0018] Figure 4 2. Schematic diagram of the fixing component structure (side plate assembly) of an embodiment of this utility model;

[0019] Figure 5 This is a schematic diagram of the angle adjuster fixing assembly structure according to an embodiment of the present utility model;

[0020] Figure 6 This is a schematic diagram of an embodiment of the present invention (excluding the fixing component and the angle adjuster fixing component).

[0021] Figure 7 for Figure 6 Enlarged structural diagram at point A in the middle;

[0022] Figure 8 This is a schematic diagram of the structure of an embodiment of the chair back frame of this utility model.

[0023] In the diagram: 1-Base; 2-Side plate assembly; 3-Fixing component; 4-Angle adjuster fixing component; 5-Backrest frame; 6-Positioning clamp assembly; 7-Sliding push plate; 8-Push cylinder; 9-Placement rack; 10-Positioning pin; 11-Angle adjuster; 12-Through hole; 13-Positioning block; 14-L-shaped connecting block; 15-Sliding guide rail; 16-Sliding block; 17-Sliding groove; 18-Support frame; 19-Auxiliary installation cylinder; 20- 21-Limit clamping plate; 22-Abutting block A; 23-Positioning hole; 24-Support seat; 25-Support plate; 26-Rib plate; 27-L-shaped limit block; 28-Rubber block; 29-Clamping mechanism; 30-Limit pressing block; 31-Limit pin; 32-Crimping cylinder; 33-Hinge seat; 34-Swing rod; 35-Crimping claw; 36-Crimping block; 37-Crimping claw hinge seat; 38-Crimping claw block; 39-Switch assembly. Detailed Implementation

[0024] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0025] It should be noted that the following detailed descriptions are exemplary and intended to provide further explanation of this application. Unless otherwise specified, 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 application pertains.

[0026] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0027] like Figure 1-8 As shown, a welding fixture structure for a light truck chair back frame includes a base 1. On the front side of the base, symmetrically arranged are fixing components 3 for fixing the side panel assembly 2. An angle adjuster fixing component 4 is installed on the front side of the base between the two fixing components. A positioning clamping component 6 is installed in the middle of the base corresponding to the chair back frame 5. The angle adjuster fixing component cooperates with the fixing components to fix the position of the side panel assembly. Then, the positioning clamping component limits the position of the chair back frame, ensuring that the position is fixed when the chair back frame and the side panel assembly are welded, preventing misalignment, ensuring welding accuracy, facilitating specialized production, and improving production efficiency.

[0028] In this embodiment, to fix the outer side of the side plate assembly, the fixing component includes a vertically arranged sliding push plate 7. The sliding push plate is arranged along the vertical longitudinal direction, that is, the plate surface of the sliding push plate faces the middle of the base. The sliding push plate is slidably connected to the base in a horizontal direction. A push cylinder 8 for driving the sliding push plate to slide is installed on the outer side of the sliding push plate on the base. Several placement racks 9 for placing the side plate assembly are provided on the inner side of the sliding push plate. Several positioning pins 10 for positioning the side plate assembly are provided on the inner side of the sliding push plate. Specifically, the placement rack is used to place the plate body part of the side plate assembly. The positioning pin corresponds to the angle adjuster 11 on the side plate assembly. The angle adjuster is provided with a through hole 12 that cooperates with the positioning pin. That is, the push cylinder drives the sliding push plate to slide, so that the positioning pin and the placement rack can effectively fix the outer side of the side plate assembly.

[0029] In this embodiment, in order to install the positioning pin, a positioning block 13 is installed on the inner side of the sliding push plate corresponding to the positioning pin. An L-shaped connecting block 14 is installed on the side of the positioning block. The horizontal part of the L-shaped connecting block is fixed to the side of the positioning block. The positioning pin is installed on the end of the horizontal longitudinal part of the L-shaped connecting block. That is, a pin hole that mates with the positioning pin is opened on the end of the horizontal longitudinal part of the L-shaped connecting block. The positioning pin is fixed in the pin hole.

[0030] In this embodiment, in order to specifically realize the sliding of the sliding push plate, at least two sliding guide rails 15 are provided on the base for each sliding push plate, and a sliding block 16 is provided under the sliding guide rail for each sliding push plate. A sliding groove 17 is provided on the bottom surface of the sliding block for each sliding guide rail. The sliding push plate slides on the base through the cooperation of the sliding groove and the sliding block.

[0031] In this embodiment, to fix the inner side of the side panel assembly, the angle adjuster fixing assembly includes symmetrically arranged auxiliary fixing structures. Each auxiliary fixing structure includes a support frame 18, on which an auxiliary installation cylinder 19 is mounted. The telescopic end of the auxiliary installation cylinder faces the fixing assembly on the same side; specifically, the telescopic end of the auxiliary installation cylinder faces the inner side of the angle adjuster. A limiting clamping plate 20 is mounted on the telescopic end of the auxiliary installation cylinder to abut against the inner side of the side panel assembly. Specifically, the limiting clamping plate is used to abut against the inner side of the angle adjuster. The side panel allows the positioning pin and the mounting bracket to effectively fix the outer side of the side panel assembly, and the limiting clamping plate to abut the inner side of the angle adjuster, thus achieving clamping and fixing of the side panel assembly. One end of the limiting clamping plate is fixed to the end of the corresponding auxiliary installation cylinder, and the other end, facing the inner side of the angle adjuster, is equipped with an abutment block A21. The abutment block A has a positioning hole 22 corresponding to the positioning pin. In use, when the sliding push plate slides until the positioning pin passes through the hole, and then the limiting clamping plate slides to abut the angle adjuster, the end of the positioning pin is inserted into the positioning hole to achieve fixation.

[0032] In this embodiment, for reasonable design, the specific structure of the support frame is as follows: the support frame includes a support base 23, which is fixed to the base. A vertical support plate 24 is installed on the support base. The auxiliary installation cylinder is horizontally installed on one side of the support plate. A rib plate 25 for reinforcing the overall structure is connected between the other side of the support plate and the support base. A limiting mechanism for limiting the extreme distance of the limiting clamping plate is installed on the other side of the support plate. The limiting mechanism is a horizontally arranged L-shaped limiting block 26. The end of the horizontal part of the L-shaped limiting block is fixed to the support plate. Specifically, the end of the horizontal part of the L-shaped limiting block is fixed above the rib plate. The horizontal longitudinal part of the L-shaped limiting block is located in front of the extension and retraction direction of the limiting clamping plate. A rubber block 27 is provided on the horizontal longitudinal part of the L-shaped limiting block corresponding to the limiting clamping plate. Specifically, the rubber block is located in the forward direction of the extension and retraction end of the auxiliary installation cylinder, which can effectively buffer the impact of the limiting clamping plate.

[0033] In this embodiment, to achieve placement and positioning of the chair back frame, the positioning clamping assembly includes several clamping mechanisms 28 distributed along the frame of the chair back frame. That is, the chair back frame is placed horizontally on the base, and the chair back frame is fixed on the base by several clamping mechanisms. The clamping mechanisms do not interfere with the fixing components or the angle adjuster fixing components. The clamping mechanism includes a limiting pressure block 29. The limiting pressure block is provided with a limiting pressure groove 30 corresponding to the frame tube of the chair back frame. The limiting pressure groove passes through the limiting pressure block along the length direction of the frame tube of the chair back frame. The limiting pressure block is installed on the base, and a limiting pin 31 is inserted into the bottom of the limiting pressure groove. A pressing mechanism is installed on the base next to the limiting pressure block. In use, the limiting pressure grooves on each limiting pressure block form the mounting groove of the chair back frame. After the chair back frame is placed into the mounting groove, the upper tube surface of the chair back frame is fixed by the pressing mechanism to achieve the fixation of the chair back frame.

[0034] In this embodiment, to achieve the fixation of the chair back frame, the specific structure of the pressing mechanism is as follows: The pressing mechanism further includes a vertically arranged pressing cylinder 32, with the telescopic end of the pressing cylinder facing upwards. A hinge seat 33 is provided on the upper part of the cylinder sleeve next to the telescopic end. A swing rod 34 is rotatably connected to the hinge seat. The lower end of the swing rod is rotatably connected to the hinge seat via a rotating shaft. A pressing claw 35 is rotatably connected to the upper end of the swing rod. The middle part of the pressing claw is rotatably connected to the upper end of the swing rod. The pressing end of the pressing claw is located above the limiting pressing groove. The telescopic end of the pressing cylinder is rotatably connected to the non-pressing end of the pressing claw. In use... By extending and retracting the telescopic end of the pressing cylinder, the non-pressing end of the pressing claw swings up and down, thereby achieving the rotation of the pressing claw. Finally, the pressing end of the pressing claw presses down or rises, thus fixing the chair back frame. The specific structure of the pressing claw is as follows: the pressing claw includes a pressing block 36, one end of which is provided with a pressing claw hinge seat 37. The swing rod is rotatably connected to the middle of the pressing claw hinge seat, the telescopic end of the pressing cylinder is rotatably connected to the end of the pressing claw hinge seat, and the other end of the pressing block is equipped with a pressing claw block 38. The pressing claw block is L-shaped, with the horizontal part of the pressing claw block fixed on the pressing block and the vertical end located above the limiting pressing groove, thereby fixing the chair back frame.

[0035] In this embodiment, for the sake of reasonable design, a switch group 39 for starting each cylinder is installed on the base. Since this is existing technology, it will not be described in detail.

[0036] Unless otherwise stated, if any of the technical solutions disclosed in this utility model discloses a numerical range, then the disclosed numerical range is a preferred numerical range. Any person skilled in the art should understand that the preferred numerical range is merely one among many feasible numerical values ​​that has a more obvious or representative technical effect. Because there are many numerical values, it is impossible to list them all. Therefore, this utility model discloses only some numerical values ​​to illustrate the technical solutions of this utility model. Furthermore, the numerical values ​​listed above should not constitute a limitation on the scope of protection of this utility model.

[0037] If the terms "first" or "second" are used in this document to specify components, those skilled in the art should know that the use of "first" or "second" is merely for the purpose of distinguishing components in description, and unless otherwise stated, the above terms have no special meaning.

[0038] Single supine machine

[0039] If this utility model discloses or relates to mutually fixedly connected parts or structural components, then unless otherwise stated, a fixed connection can be understood as: a detachable fixed connection (e.g., using bolts or screws), or a non-detachable fixed connection (e.g., riveting, welding). Of course, mutually fixed connections can also be replaced by an integral structure (e.g., manufactured by integral molding using a casting process) (except where it is obviously impossible to use an integral molding process).

[0040] Furthermore, the orientations or positional relationships indicated by terms such as "longitudinal," "lateral," "up," "down," "front," "back," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer" used in any of the technical solutions disclosed in this utility model are based on the orientations or positional relationships shown in the accompanying drawings and are only for the convenience of describing this patent. They are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this patent. In addition, unless otherwise stated, the terms used to indicate shape in any of the technical solutions disclosed in this utility model include shapes that are similar to, close to, or approximate with it.

[0041] Any component provided by this utility model can be assembled from multiple individual components, or it can be a single component manufactured by a one-piece molding process.

[0042] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and not to limit it; although the utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications can still be made to the specific implementation of this utility model or equivalent substitutions can be made to some technical features without departing from the spirit of the technical solution of this utility model, and all such modifications and substitutions should be covered within the scope of the technical solution claimed by this utility model.

Claims

1. A light truck seat back frame welding tooling structure, characterized in that: The base is provided with fixing assemblies for fixing the side plate assembly on the front side, an angle adjuster fixing assembly is installed on the upper front side of the base between the two fixing assemblies, and a positioning and pressing assembly is installed on the upper middle part of the base corresponding to the back frame.

2. The chair back frame welding tooling structure of claim 1, wherein: The fixing assembly comprises a vertically arranged sliding push plate arranged along the vertical longitudinal direction, which is horizontally and transversely slid on the base, and a push cylinder is installed on the base outside the sliding push plate to drive the sliding of the sliding push plate.

3. The chair back frame welding tooling structure of claim 2, wherein: A plurality of placing racks for placing the side plate assembly are arranged on the inner side of the sliding push plate, and a plurality of positioning pins for positioning the side plate assembly are arranged on the inner side of the sliding push plate.

4. The chair back frame welding tooling structure of claim 3, wherein: A positioning block is installed on the inner side of the sliding push plate corresponding to the positioning pin, a horizontally and transversely arranged L-shaped connecting block is installed on the side of the positioning block, the horizontal and transverse part of the L-shaped connecting block is fixed on the side of the positioning block, and the positioning pin is installed on the end of the horizontal and longitudinal part of the L-shaped connecting block.

5. The chair back frame welding tooling structure of claim 2, wherein: At least two sliding guide rails are arranged on the base corresponding to each sliding push plate, a sliding block is arranged on the sliding push plate corresponding to the sliding guide rail, and a sliding groove is arranged on the bottom surface of the sliding block corresponding to the sliding guide rail.

6. The seat back frame welding tooling structure of claim 1, wherein: The angle adjuster fixing assembly comprises left and right symmetrically arranged auxiliary fixing structures, the auxiliary fixing structure comprises a support frame, an auxiliary installation cylinder is installed on the support frame, the telescopic end of the auxiliary installation cylinder faces the same side of the fixing assembly, and a limiting clamping plate for abutting against the inner side of the placed side plate assembly is installed on the telescopic end of the auxiliary installation cylinder.

7. The chair back frame welding fixture structure of claim 6, wherein: The support frame comprises a support seat, a vertical support plate is installed on the support seat, the auxiliary installation cylinder is horizontally and transversely installed on one side of the support plate, a limiting mechanism for limiting the limiting distance of the limiting clamping plate is installed on the other side of the support plate, the limiting mechanism is a horizontally arranged L-shaped limiting block, the end of the horizontal and transverse part of the L-shaped limiting block is fixed on the support plate, the horizontal and longitudinal part of the L-shaped limiting block is located in front of the telescopic direction of the limiting clamping plate, and a rubber block is arranged on the horizontal and longitudinal part of the L-shaped limiting block corresponding to the limiting clamping plate.

8. The chair back frame welding tooling structure of claim 1, wherein: The positioning and pressing assembly comprises a plurality of pressing mechanisms distributed along the frame of the back frame, the pressing mechanism comprises a limiting pressing block, a limiting pressing groove is arranged on the limiting pressing block corresponding to the frame of the back frame, the limiting pressing block is installed on the base, a limiting pin is inserted into the groove bottom of the limiting pressing groove, and a pressing mechanism is installed on the base beside the limiting pressing block.

9. The chair back frame welding fixture structure of claim 8, wherein: The pressing mechanism further comprises a vertically arranged pressing cylinder, the telescopic end of the pressing cylinder is upward, a hinged seat is arranged on the cylinder sleeve of the pressing cylinder beside the telescopic end, a swing rod is rotationally connected to the hinged seat, a pressing claw is rotationally connected to the upper end of the swing rod, the middle part of the pressing claw is rotationally connected to the upper end of the swing rod, the pressing end of the pressing claw is located above the limiting pressing groove, and the telescopic end of the pressing cylinder and the non-pressing end of the pressing claw are rotationally connected.

10. The seat back frame welding tooling structure of claim 9, wherein: The crimping claw comprises a crimping block, one end of the crimping block is provided with a crimping claw hinge seat, the swing rod is rotationally connected to the middle part of the crimping claw hinge seat, the telescopic end of the crimping cylinder is rotationally connected to the end part of the crimping claw hinge seat, and the other end of the crimping block is provided with a crimping claw block.

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