Seat framework welding positioning frame

Abstract

The utility model provides a seat framework welding positioning frame, and belongs to the technical field of positioning frames. The seat framework welding positioning frame comprises a rack and a positioning assembly, the positioning assembly comprises a two-way sliding rail, a side frame positioning frame, a first clamping piece, a transverse frame positioning frame and a second clamping piece, and the side frame positioning frame and the transverse frame positioning frame are each provided with a positioning groove; the side frame positioning frame, the first clamping piece and the second clamping piece are symmetrically arranged, and the sliding end of the bidirectional sliding rail is connected with the upper portion of the bottom side of the rack in a sliding mode. In the whole using process, accurate positioning of the transverse frame and the side frame of the seat is achieved, in the welding process, the side frame and the transverse frame are still clamped, inclination deformation, caused by stress occurring in the welding process, of the whole framework is reduced, and therefore the whole framework is evenly stressed in the using process, and the service life of the whole framework is prolonged. And finally, the phenomenon of unsoldering is reduced, and the quality of the seat is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of positioning frame, in particular to a seat framework welding positioning frame. BACKGROUND

[0002] Generally, office chair is a kind of seat designed for office environment, its use is wide, covers many different scenes and needs. But in the production of office chair, the framework needs to be bent into shape first, and then welded together, so the positioning frame needs to be used to position the framework, once the framework is not accurately positioned, the overall framework after welding will often appear inclined, in the long-term use process, the inclined overall framework will exist uneven stress phenomenon, which will cause the overall framework to be damaged due to welding over time, thereby reducing the quality of the seat. CONTENT OF THE UTILITY MODEL

[0003] In order to make up for the above shortcomings, the present application provides a seat framework welding positioning frame, aiming at improving the problem that the framework positioning is not accurate and the overall framework after welding will often appear inclined, in the long-term use process, the inclined overall framework will exist uneven stress phenomenon, which will cause the overall framework to be damaged due to welding over time, thereby reducing the quality of the seat.

[0004] The embodiment of the present application provides a seat framework welding positioning frame, which comprises a rack and a positioning assembly, the positioning assembly comprises a bidirectional slide rail, a side frame positioning frame, a first clamping piece, a cross frame positioning frame and a second clamping piece, the side frame positioning frame and the cross frame positioning frame are both provided with a positioning groove, the side frame positioning frame, the first clamping piece and the second clamping piece are all symmetrically arranged, the bidirectional slide rail is slidably connected with the upper part of the bottom side of the rack, two side frame positioning frames are respectively fixedly connected with the upper parts of the two slide ends of the bidirectional slide rail, the clamping end of the first clamping piece is slidably penetrated through the side frame positioning frame, the clamping end of the first clamping piece is located on one side of the positioning groove of the side frame positioning frame, the clamping end of the second clamping piece is slidably penetrated through the cross frame positioning frame, and the clamping end of the second clamping piece is located on one side of the positioning groove of the cross frame positioning frame.

[0005] In a specific embodiment, the bidirectional slide rail comprises a motor, a bidirectional threaded rod and a moving block, the moving block is symmetrically arranged, the motor is fixedly connected with the rack, the bidirectional threaded rod is rotatably connected with the rack, the moving block is slidably connected with the rack, the bidirectional threaded rod is threadedly connected with the moving block, and the output end of the motor is drivingly connected with the bidirectional threaded rod.

[0006] In a specific embodiment, the output end of the motor is provided with a first bevel gear, the middle part of the bidirectional threaded rod is provided with a second bevel gear, and the first bevel gear is meshingly connected with the second bevel gear.

[0007] In a specific embodiment, the upper part of the frame is provided with a track, and the bottom of the moving block is provided with a sliding block in sliding connection with the track.

[0008] In a specific embodiment, the first clamping member comprises a first connecting plate, first clamping hooks and first telescopic members, the first clamping hooks and the first telescopic members are both provided with a plurality of the positioning slots of the side frame positioning rack, one end of each of the plurality of first clamping hooks is fixedly connected with one end of the first connecting plate, and the end of the first telescopic member is fixedly connected with one side of the side frame positioning rack, the first clamping hook slides through the inside of the side frame positioning rack, and the output end of the first telescopic member is fixedly connected with the first connecting plate.

[0009] In a specific embodiment, the second clamping member is provided with two, one of which clamps the horizontal frame of the seat cushion, and the other of which clamps the horizontal frame of the backrest.

[0010] In a specific embodiment, the second clamping member comprises a second connecting plate, second clamping hooks and second telescopic members, the second clamping hooks and the second telescopic members are both provided with a plurality of, one end of the second clamping hook is fixedly connected with the second connecting plate, and the end of the second telescopic member is fixedly connected with the horizontal frame positioning rack, and the output end of the second telescopic member is fixedly connected with the second connecting plate.

[0011] In a specific embodiment, the first clamping hook and the second clamping hook are both provided with anti-slip at the bent hook.

[0012] Beneficial effects: the seat framework welding positioning frame provided by the application has the beneficial effects that: in the process of use, the side frames at the seat cushion position and the backrest position are first bent, one bent side frame is placed in the positioning groove of a side frame positioning frame, the bent side frame is clamped in the positioning groove by the clamping end of the first clamping piece, the other bent side frame is placed in the positioning groove of the other side frame positioning frame, and the side frame is also clamped in the positioning groove by the clamping end of the first clamping piece, then the plurality of cross frames are sequentially placed in the positioning groove of the cross frame positioning frame, and the cross frames are clamped by the clamping end of the second clamping piece, at this time, the clamping end of the second clamping piece clamps the cross frames in a state that the cross frames can slide, the cross frames are adjusted to be centered in the middle of the cross frame positioning frame, then the clamping end of the second clamping piece clamps and fastens the cross frames, the sliding end of the bidirectional sliding rail drives the movement of the two side frame positioning frames, and the two side frames are abutted against the two ends of the cross frame to position and fold the cross frame and the side frame. In the whole process of use, the cross frame and the side frame of the seat are accurately positioned, and the side frame and the cross frame are still clamped during welding, so that the inclination and deformation of the overall framework caused by stress during welding are reduced, so that the overall framework is evenly stressed during use, and finally the phenomenon of disbonding is reduced, and the quality of the seat is improved. BRIEF DESCRIPTION OF DRAWINGS

[0013] In order to more clearly illustrate the technical solutions of the embodiments of the application, the following will briefly introduce the drawings needed to be used in the embodiments. It should be understood that the following drawings only show some embodiments of the application, and therefore should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can also be obtained without creative labor.

[0014] Figure 1 is a schematic view of the seat framework welding positioning frame structure provided by the embodiments of the application;

[0015] Figure 2 is a schematic view of part of the bidirectional sliding rail provided by the embodiments of the application;

[0016] Figure 3 is a schematic view of part of the side frame positioning frame provided by the embodiments of the application;

[0017] Figure 4 is a schematic view of part of the first clamping piece provided by the embodiments of the application;

[0018] Figure 5 is a schematic view of part of the cross frame positioning frame provided by the embodiments of the application;

[0019] Figure 6Part structure schematic diagram of the second clamping piece provided for the embodiment of the present application.

[0020] In the figure: 100-frame; 110-rail; 200-positioning assembly; 210-bidirectional slide rail; 211-motor; 212-bidirectional threaded rod; 213-moving block; 214-first bevel gear; 215-second bevel gear; 216-sliding block; 220-side frame positioning frame; 221-positioning groove; 230-first clamping piece; 231-first connecting plate; 232-first clamping hook; 233-first telescopic piece; 240-cross frame positioning frame; 250-second clamping piece; 251-second connecting plate; 252-second clamping hook; 253-second telescopic piece. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present application will be described below with reference to the drawings in the embodiments of the present application.

[0022] Please refer to Figure 1 The present application provides a seat framework welding positioning frame, which comprises a frame 100 and a positioning assembly 200.

[0023] Please refer to Figures 1-6 The positioning assembly 200 comprises a bidirectional slide rail 210, a side frame positioning frame 220, a first clamping piece 230, a cross frame positioning frame 240 and a second clamping piece 250. The side frame positioning frame 220 and the cross frame positioning frame 240 are both provided with a positioning groove 221. The side frame positioning frame 220, the first clamping piece 230 and the second clamping piece 250 are symmetrically arranged. The sliding end of the bidirectional slide rail 210 is slidably connected to the upper part of the bottom side of the frame 100. The two side frame positioning frames 220 are respectively fixedly connected to the upper parts of the two sliding ends of the bidirectional slide rail 210. The clamping end of the first clamping piece 230 is slidably penetrated through the side frame positioning frame 220, and is located at one side of the positioning groove 221 formed in the side frame positioning frame 220. The clamping end of the second clamping piece 250 is slidably penetrated through the cross frame positioning frame 240, and is located at one side of the positioning groove 221 formed in the cross frame positioning frame 240. The bidirectional slide rail 210 comprises a motor 211, a bidirectional threaded rod 212 and a moving block 213. The moving block 213 is symmetrically arranged. The motor 211 is fixedly connected to the frame 100. The bidirectional threaded rod 212 is rotatably connected to the frame 100. The moving block 213 is slidably connected to the frame 100. The bidirectional threaded rod 212 is threadedly connected to the moving block 213. The output end of the motor 211 is drivingly connected to the bidirectional threaded rod 212. The output end of the motor 211 is provided with a first bevel gear 214.

[0024] The middle part of the bidirectional threaded rod 212 is provided with the second bevel gear 215, the first bevel gear 214 is meshed and connected with the second bevel gear 215, the upper part of the frame 100 is provided with the track 110, the bottom of the moving block 213 is provided with the sliding block 216, the sliding block 216 is slidably connected with the track 110, the first clamping piece 230 comprises the first connecting plate 231, the first clamping hook 232 and the first telescopic piece 233, the first clamping hook 232 and the first telescopic piece 233 are both provided with a plurality of first clamping hooks 232 along the positioning groove 221 of the side frame positioning frame 220, one end of the plurality of first clamping hooks 232 is fixedly connected with one end of the first connecting plate 231, the end of the first telescopic piece 233 is fixedly connected with one side of the side frame positioning frame 220, the first clamping hook 232 is slidably penetrated into the inside of the side frame positioning frame 220, the output end of the first telescopic piece 233 is fixedly connected with the first connecting plate 231, the second clamping piece 250 is provided with two, one second clamping piece 250 clamps the transverse frame of the seat cushion, and the other second clamping piece 250 clamps the transverse frame of the backrest, the second clamping piece 250 comprises the second connecting plate 251, the second clamping hook 252 and the second telescopic piece 253, the second clamping hook 252 and the second telescopic piece 253 are both provided with a plurality of second clamping hooks 252, one end of the second clamping hook 252 is fixedly connected with the second connecting plate 251, the end of the second telescopic piece 253 is fixedly connected with the transverse frame positioning frame 240, and the output end of the second telescopic piece 253 is fixedly connected with the second connecting plate 251, and the bent hooks of the first clamping hook 232 and the second clamping hook 252 are both provided with anti-skid structures.

[0025] The working principle of the seat framework welding positioning frame is as follows: in the process of use, first, the edge frames of the seat cushion position and the backrest position are bent, a mechanical arm and a gripper can be provided, the mechanical arm cooperates with the gripper to place a bent edge frame in the positioning groove 221 of the edge frame positioning frame 220, realizes mechanization and automation, and the clamping end of the first clamping piece 230 automatically clamps the edge frame in the positioning groove 221, then the mechanical arm and the gripper are used again to place another bent edge frame in the positioning groove 221 of the other edge frame positioning frame 220, and the clamping end of the other first clamping piece 230 also clamps the edge frame in the positioning groove 221, then the mechanical arm and the gripper automatically place a plurality of cross frames in the positioning groove 221 of the cross frame positioning frame 240 in turn, and the clamping end of the second clamping piece 250 automatically clamps the cross frame, at this time, the clamping end of the second clamping piece 250 clamps the cross frame in a state that the cross frame can slide, the output end of the motor 211 drives the rotation of the bidirectional threaded rod 212, the bidirectional threaded rod 212 drives one end of the two moving blocks 213 to adjust the distance between the two moving blocks 213, at this time, the two edge frame positioning frames 220 drive the two edge frames to automatically position the plurality of cross frames, so that the cross frames are centered in the middle of the cross frame positioning frame 240, then the clamping end of the second clamping piece 250 clamps and fastens the cross frame, the sliding end of the bidirectional sliding rail 210 drives the movement of the two edge frame positioning frames 220, and the two edge frames are abutted at both ends of the cross frame to position and fold the cross frame and the edge frame, at this time, automatic welding work can be performed by a welding robot, in the whole process of use, the mechanical arm can be used for clamping and feeding the edge frame, and the mechanical arm can also be used for feeding the cross frame, after feeding, the two edge frame positioning frames 220 automatically center and position the cross frame, realizing accurate positioning of the cross frame and the edge frame of the seat, in the process of automatic welding of the welding robot, the first clamping piece 230 and the second clamping piece 250 still clamp the edge frame and the cross frame, and after welding is completed, the mechanical arm can automatically unload the framework, reducing the stress caused by the inclination and deformation of the overall framework in the welding process, so that the overall framework is evenly stressed in the process of use, finally reducing the phenomenon of disbonding, improving the quality of the seat, and realizing mechanization and automation in the whole welding process.

[0026] The above merely provides an example of the present application and is not intended to limit the protection scope of the present application. For those skilled in the art, the present application can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application. It should be noted that similar reference numbers and letters represent similar items in the following drawings, thus, once an item is defined in one drawing, it need not be further defined and explained in the subsequent drawings.

Claims

1. A seat frame welding fixture, characterized by, The utility model relates to a positioning assembly (200) and a rack (100) for positioning the edge frame and the cross frame of the rack (100), and the positioning assembly (200) comprises a rack (100), a positioning assembly (200), a two-way slide rail (210), an edge frame positioning frame (220), a first clamping piece (230), a cross frame positioning frame (240) and a second clamping piece (250), the edge frame positioning frame (220) and the cross frame positioning frame (240) are both provided with a positioning groove (221), the edge frame positioning frame (220), the first clamping piece (230) and the second clamping piece (250) are all symmetrically arranged, the two-way slide rail (210) is slidably connected with the upper portion of the bottom side of the rack (100), the two edge frame positioning frames (220) are respectively fixedly connected with the upper portions of the two sliding ends of the two-way slide rail (210), the clamping end of the first clamping piece (230) is slidably penetrated through the edge frame positioning frame (220), the clamping end of the first clamping piece (230) is located on one side of the positioning groove (221) of the edge frame positioning frame (220), and the clamping end of the second clamping piece (250) is slidably penetrated through the cross frame positioning frame (240). The two-way slide rail (210) comprises a motor (211), a two-way threaded rod (212) and a moving block (213), the moving block (213) is symmetrically arranged, the motor (211) is fixedly connected with the rack (100), the two-way threaded rod (212) is rotatably connected with the rack (100), the moving block (213) is slidably connected with the rack (100), the two-way threaded rod (212) is threadedly connected with the moving block (213), and the output end of the motor (211) is drivingly connected with the two-way threaded rod (212). The output end of the motor (211) is provided with a first bevel gear (214), the middle portion of the two-way threaded rod (212) is provided with a second bevel gear (215), and the first bevel gear (214) is meshedly connected with the second bevel gear (215).

2. The seat frame welding fixture of claim 1, wherein The upper portion of the rack (100) is provided with a track (110), and the bottom portion of the moving block (213) is provided with a sliding block (216), and the sliding block (216) is slidably connected with the track (110).

3. The seat frame welding fixture of claim 2, wherein, The first clamping piece (230) comprises a first connecting plate (231), a first clamping hook (232) and a first telescopic piece (233), a plurality of first clamping hooks (232) and a plurality of first telescopic pieces (233) are arranged along the positioning groove (221) of the edge frame positioning frame (220), one end of each of the plurality of first clamping hooks (232) is fixedly connected with one end of the first connecting plate (231), the end portion of the first telescopic piece (233) is fixedly connected with one side of the edge frame positioning frame (220), the first clamping hook (232) is slidably penetrated through the inside of the edge frame positioning frame (220), and the output end of the first telescopic piece (233) is fixedly connected with the first connecting plate (231).

4. The seat frame welding fixture of claim 3, wherein, ​ 5. The seat frame welding fixture of claim 1, wherein, ​ 6. The seat frame welding fixture of claim 1, wherein The second clamping pieces (250) are provided with two, one of which clamps the horizontal frame of the seat cushion position, and the other of which clamps the horizontal frame of the backrest position.

7. The seat frame welding fixture of claim 5, wherein, The second clamping pieces (250) comprise second connecting plates (251), second clamping hooks (252) and second telescopic pieces (253), the second clamping hooks (252) and the second telescopic pieces (253) are both provided with multiple, one end of the second clamping hooks (252) is fixedly connected with the second connecting plates (251), end portions of the second telescopic pieces (253) are fixedly connected with the horizontal frame positioning frames (240), output ends of the second telescopic pieces (253) are fixedly connected with the second connecting plates (251).

8. The seat frame welding fixture of claim 7, wherein, The first clamping hooks (232) and the second clamping hooks (252) are both provided with anti-skid structures at the bent hooks.

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