Automobile seat net frame welding clamp with low net density

Abstract

The utility model discloses an automobile seat net frame welding clamp with low net density. The automobile seat net frame welding clamp comprises a bottom plate, a cross rod fixing assembly, a middle cross rod fixing assembly, a lower cross rod fixing assembly, a lower frame fixing assembly, two side frame fixing assemblies, two side frame fixing assemblies, two upper coating piece fixing assemblies and two lower coating piece fixing assemblies. All scattered rod parts can be welded and formed at a time, distributed welding is avoided, and production efficiency and welding quality are improved.

Description

Technical Field

[0001] The utility model relates to the field of welding jigs, in particular to a welding jig for an automotive seat net frame with a low mesh density. Background Art

[0002] The automotive seat net frame is an integrated seat frame assembly for the three-person seat in the rear row of an automobile. Its structure is as Figure 1 、 Figure 2 shown. The whole includes several bars of various shapes (upper cross bar, middle cross bar, lower cross bar, lower frame assembly composed of several bars, border assembly composed of several bars, side frame assembly composed of several bars and ear plates, upper painting bar, lower painting bar). At present, conventional welding jigs cannot clamp and fix all the bar components of the whole seat frame assembly at one time, so that the overall welding process needs to be completed step by step. For example, some bars are first welded into a small assembly, and then all the small assemblies are spliced and fixed and then welded into a complete seat frame assembly. Such step-by-step welding requires more processes, and when welding each component separately for limit fixation, the overall splicing at the end will amplify the welding thermal deformation error, resulting in low product quality. Summary of the Utility Model

[0003] In view of the above-mentioned defects of the prior art, the purpose of the present utility model is to provide a welding jig for an automotive seat net frame with a low mesh density, which can weld all the scattered bar components into a whole at one time, avoid distributed welding, and improve production efficiency and welding quality.

[0004] The purpose of the present utility model is achieved by such a technical solution:

[0005] A welding jig for an automotive seat net frame with a low mesh density includes:

[0006] A bottom plate;

[0007] An upper cross bar fixing component, arranged on the bottom plate, for limiting and fixing the upper cross bar of the automotive seat net frame;

[0008] A middle cross bar fixing component, arranged on the bottom plate, for limiting and fixing the middle cross bar of the automotive seat net frame;

[0009] A lower cross bar fixing component, arranged on the bottom plate, for limiting and fixing the lower cross bar of the automotive seat net frame;

[0010] A lower frame fixing component, arranged on the bottom plate, for limiting and fixing the lower frame of the automotive seat net frame;

[0011] Two border fixing components, arranged on the bottom plate in a relative mirror image, on both sides of the upper cross bar fixing component, the middle cross bar fixing component and the lower cross bar fixing component, for limiting and fixing the two borders of the automotive seat net frame;

[0012] Two side frame fixing components, which are arranged on the bottom plate in a relatively mirror-image manner and are located between the two border fixing components, limit and fix the two side frames of the automotive seat net frame;

[0013] Two upper painting part fixing components, which are arranged on the bottom plate in a relatively mirror-image manner and are located outside the side frame fixing components, limit and fix the two upper painting parts of the automotive seat net frame;

[0014] Two lower painting part fixing components, which are arranged on the bottom plate in a relatively mirror-image manner and are located at the outer ends of the lower crossbar fixing components, limit and fix the two lower painting parts of the automotive seat net frame.

[0015] Furthermore, the upper crossbar fixing component includes a plurality of upper pressing jigs and a plurality of upper inclined supporting seats;

[0016] The upper pressing jig includes:

[0017] At least one upper pressing column, which is vertically arranged upward on the bottom plate, and the upper end surface is provided with a horizontal upper pressing limit groove;

[0018] An upper pressing pliers cylinder, which is vertically arranged upward on the bottom plate;

[0019] Upper pressing arms with the same number as the upper pressing columns, which are hinged on the telescopic end of the upper pressing pliers cylinder; as the upper pressing pliers cylinder rises and falls, the upper pressing arms close or open the upper pressing limit groove of the upper pressing column;

[0020] The upper inclined supporting seat is vertically arranged upward on the bottom plate and is located between the two upper pressing jigs. The upper end surface of the upper inclined supporting seat is inclined and is provided with an inclined upper inclined limit groove.

[0021] Furthermore, the middle crossbar fixing component includes a plurality of middle pressing jigs, a plurality of middle flat supporting seats, and a plurality of middle inclined supporting seats;

[0022] The middle pressing jig includes:

[0023] At least one middle pressing column, which is vertically arranged upward on the bottom plate, and the upper end surface is provided with a horizontal middle pressing limit groove;

[0024] A middle pressing pliers cylinder, which is vertically arranged upward on the bottom plate;

[0025] Middle pressing arms with the same number as the middle pressing columns, which are hinged on the telescopic end of the middle pressing pliers cylinder; as the middle pressing pliers cylinder rises and falls, the middle pressing arms close or open the middle pressing limit groove of the middle pressing column;

[0026] The middle flat supporting seat is vertically arranged upward on the bottom plate, the upper end surface is horizontal, and it is located between the two middle pressing jigs; the upper end surface of the middle flat supporting seat is provided with a horizontal middle flat limit groove;

[0027] The middle inclined support base is vertically upwardly disposed on the bottom plate and is located between two middle pressure clamps; the upper end surface of the middle inclined support base is inclined, and an inclined middle inclined limiting groove is provided on the upper end surface.

[0028] Further, the lower crossbar fixing assembly includes a plurality of lower pressure clamps and two lower rod end clamps disposed on both sides of the plurality of lower pressure clamps;

[0029] The lower pressure clamp includes:

[0030] At least one lower pressure column is vertically upwardly disposed on the bottom plate, and a horizontal lower pressure limiting groove is provided on the upper end surface;

[0031] A lower pressure clamp cylinder is vertically upwardly disposed on the bottom plate;

[0032] Lower pressure arms having the same number as the middle pressure columns are hinged to the telescopic end of the lower pressure clamp cylinder; as the lower pressure clamp cylinder rises and falls, the lower pressure arms close or open the lower pressure limiting grooves of the lower pressure columns.

[0033] The lower rod end clamp includes:

[0034] A lower rod pressure column is vertically upwardly disposed on the bottom plate, and an inclined lower rod limiting groove is provided on the upper end surface;

[0035] A lower rod pressure clamp cylinder is vertically upwardly disposed on the bottom plate;

[0036] A lower rod pressure arm is hinged to the telescopic end of the lower rod pressure clamp cylinder; as the lower rod pressure clamp cylinder rises and falls, the lower rod pressure arm closes or opens the lower rod limiting groove of the lower rod pressure column.

[0037] Further, a support plate is provided on the side wall of at least one of the lower rod pressure columns, and a presence sensor is provided on the support plate and faces the end surface of the lower rod after being placed.

[0038] Further, the lower frame fixing assembly includes a plurality of lower frame clamps and two lower frame end clamps disposed on both sides of the plurality of lower frame clamps;

[0039] The lower frame clamp includes:

[0040] Two lower frame pressure columns are vertically upwardly disposed at intervals on the bottom plate, and horizontal lower frame limiting grooves are provided on the upper end surfaces;

[0041] A lower frame end pressure clamp cylinder is vertically upwardly disposed on the bottom plate;

[0042] Lower frame pressure arms having the same number as the lower frame pressure columns are hinged to the telescopic end of the lower frame pressure clamp cylinder; as the lower frame pressure clamp cylinder rises and falls, the lower frame pressure arms close or open the lower frame pressure limiting grooves of the two lower frame pressure columns.

[0043] The lower frame end clamp includes:

[0044] Two lower end frame pressing columns are vertically and upwardly arranged on the bottom plate at intervals. An inclined lower end frame limiting groove is provided on the upper end surface of one of the lower end frame pressing columns, and a horizontal lower end frame limiting groove is provided on the upper end surface of the other lower end frame pressing column;

[0045] The lower end frame pressing clamp cylinder is vertically and upwardly arranged on the bottom plate;

[0046] The lower end frame pressing arm is hinged on the telescopic end of the lower end frame pressing clamp cylinder; as the lower end frame pressing clamp cylinder rises and falls, the lower end frame pressing arm closes or opens the horizontal lower end frame limiting groove and the inclined lower end frame limiting groove.

[0047] Furthermore, the frame fixing assembly includes a plurality of frame clamps; the frame clamps include:

[0048] At least one frame pressing column is vertically and upwardly arranged on the bottom plate, and a frame limiting groove is provided on the upper end surface;

[0049] The frame pressing clamp cylinder is vertically and upwardly arranged on the bottom plate;

[0050] A frame pressing arm with the same number as the frame pressing column is hinged on the telescopic end of the frame pressing clamp cylinder; as the frame pressing clamp cylinder rises and falls, the frame pressing arm closes or opens the frame limiting groove.

[0051] Furthermore, the side frame fixing assembly includes a plurality of cross-bent rod clamps, longitudinal-bent rod clamps, a plurality of support columns, and loose part clamps;

[0052] The cross-bent rod clamp includes:

[0053] The cross-bent rod pressing column is vertically and upwardly arranged on the bottom plate, and a cross-bent rod limiting groove is provided on the upper end surface;

[0054] The cross-bent rod pressing clamp cylinder is vertically and upwardly arranged on the bottom plate;

[0055] A cross-bent rod pressing arm with the same number as the cross-bent rod pressing column is hinged on the telescopic end of the cross-bent rod pressing clamp cylinder; as the cross-bent rod pressing clamp cylinder rises and falls, the cross-bent rod pressing arm closes or opens the cross-bent rod limiting groove;

[0056] The longitudinal-bent rod clamp includes:

[0057] The longitudinal-bent rod pressing column is vertically and upwardly arranged on the bottom plate, and a longitudinal-bent rod limiting groove is provided on the upper end surface;

[0058] The longitudinal-bent rod pressing clamp cylinder is vertically and upwardly arranged on the bottom plate;

[0059] A longitudinal-bent rod pressing arm with the same number as the longitudinal-bent rod pressing column is hinged on the telescopic end of the longitudinal-bent rod pressing clamp cylinder; as the longitudinal-bent rod pressing clamp cylinder rises and falls, the longitudinal-bent rod pressing arm closes or opens the longitudinal-bent rod limiting groove;

[0060] The loose part fixture includes:

[0061] Loose part pressing columns, vertically arranged upward on the bottom plate, and loose part limiting grooves are provided on the upper end surfaces;

[0062] Two loose part positioning columns, respectively arranged on both sides of the loose part pressing columns, and positioning protrusions are provided on the upper end surfaces;

[0063] Two induction probes, respectively arranged on the sides of the loose part positioning columns;

[0064] Two guiding columns, respectively arranged on one side of the two loose part positioning columns, and guiding grooves are provided on the upper end surfaces;

[0065] Vertical bending rod limiting column, arranged on one side of the loose part pressing column, and a vertical bending rod fixing groove is provided on the upper end surface;

[0066] Loose part pressing clamp cylinder, vertically arranged upward on the bottom plate;

[0067] Two loose part pressing arms, hinged on the telescopic end of the loose part pressing clamp cylinder; as the loose part pressing clamp cylinder rises and falls, the loose part pressing arms will press on or away from the upper surface of the upper positioning column;

[0068] Support pressing arm, hinged on the telescopic end of the loose part pressing clamp cylinder; as the loose part pressing clamp cylinder rises and falls, the support pressing arm will close or open the vertical bending rod fixing groove;

[0069] The support column is arranged on the bottom plate, and a support groove is provided on the upper surface.

[0070] Further, the upper painting part fixing assembly includes: an upper painting positioning fixture and an upper painting fixing fixture;

[0071] The upper painting positioning fixture includes:

[0072] Upper painting positioning columns, vertically arranged upward on the bottom plate, and U-shaped upper painting positioning grooves are provided on the upper end surfaces; the upper painting positioning columns are made of engineering plastics;

[0073] Upper painting positioning pressing clamp cylinder, vertically arranged upward on the bottom plate;

[0074] Upper painting positioning pressing arm, hinged on the telescopic end of the upper painting positioning pressing clamp cylinder; as the upper painting positioning pressing clamp cylinder rises and falls, the upper painting positioning pressing arm will close or open the upper painting positioning groove;

[0075] The upper painting fixing fixture includes:

[0076] Two upper painting fixing columns, vertically arranged upward at intervals on the bottom plate, and upper painting fixing grooves are provided on the upper end surfaces;

[0077] Upper painting fixing pressing clamp cylinder, vertically arranged upward on the bottom plate;

[0078] Two upper painting fixing pressure arms are hinged on the telescopic end of the upper painting fixing clamp cylinder; as the upper painting fixing clamp cylinder rises and falls, the upper painting fixing pressure arms will close or open the upper painting fixing groove.

[0079] Furthermore, the lower painting part fixing assembly includes: a lower painting positioning part and a lower painting fixing fixture;

[0080] The upper surface of the lower painting positioning part is provided with a receiving limiting groove;

[0081] The lower painting fixing fixture includes:

[0082] Two lower painting fixing columns are vertically arranged upward at intervals on the bottom plate, and the upper end surfaces are both provided with lower painting fixing grooves; the lower painting fixing columns are made of engineering plastic;

[0083] A lower painting fixing clamp cylinder is vertically arranged upward on the bottom plate;

[0084] Two lower painting fixing pressure arms are hinged on the telescopic end of the lower painting fixing clamp cylinder; as the lower painting fixing clamp cylinder rises and falls, the lower painting fixing pressure arms will close or open the lower painting fixing groove.

[0085] Due to the adoption of the above technical solution, the utility model has the following advantages:

[0086] According to the overall structure of the automotive seat net frame, some of its components are designed according to symmetric mirror images, reducing the design difficulty of the fixture and the production and manufacturing difficulty. At the same time, it can reduce the automatic welding programming and lower the overall design difficulty of the welding process. According to the shape and position requirements of the main rods, corresponding fixing components are set to align and fix the limits, ensuring effective and accurate limit fixing, so that the quality of the finally welded assembly meets the standards.

[0087] Other advantages, objectives and features of the utility model will be described to some extent in the subsequent specification, and to some extent, will be obvious to those skilled in the art based on the study of the following text, or can be taught from the practice of the utility model. BRIEF DESCRIPTION OF THE DRAWINGS

[0088] The brief description of the drawings of the utility model is as follows:

[0089] Figure 1 It is a schematic top view structure diagram of the automotive seat net frame.

[0090] Figure 2 It is a schematic three-dimensional structure diagram of the automotive seat net frame.

[0091] Figure 3Schematic three-dimensional structure diagram of a welding fixture for an automotive seat mesh frame with a low mesh density during use in an embodiment.

[0092] Figure 4 Schematic top-view structure diagram of a welding fixture for an automotive seat mesh frame with a low mesh density during use in an embodiment.

[0093] Figure 5 For Figure 4 Enlarged structure diagram at location A in

[0094] Figure 6 For Figure 5 Schematic structure diagram at the B-B section in

[0095] Figure 7 For Figure 4 Enlarged structure diagram at location C in

[0096] Figure 8 For Figure 7 Schematic structure diagram at the D-D section in

[0097] Figure 9 For Figure 7 Schematic structure diagram at the E-E section in

[0098] Figure 10 For Figure 4 Enlarged structure diagram at location F in

[0099] Figure 11 For Figure 10 Schematic structure diagram at the G-G section in

[0100] Figure 12 For Figure 4 Enlarged structure diagram at location H in

[0101] Figure 13 For Figure 12 Schematic structure diagram at the J-J section in

[0102] Figure 14 For Figure 4 Enlarged structure diagram at location K in

[0103] Figure 15 For Figure 14 Schematic structure diagram at the L-L section in

[0104] Figure 16 For Figure 14 Schematic structure diagram at the M-M section in

[0105] Figure 17 For Figure 14 Schematic structure diagram at the N-N section in

[0106] Figure 18 For Figure 4Schematic diagram of the enlarged structure at position P in

[0107] Figure 19 is Figure 18 Schematic diagram of the structure at the Q-Q section in

[0108] Figure 20 is Figure 18 Schematic diagram of the structure at the R-R section in

[0109] Figure 21 is Figure 4 Schematic diagram of the enlarged structure at position S in

[0110] Figure 22 is Figure 21 Schematic diagram of the structure at the T-T section in

[0111] Figure 23 is Figure 21 Schematic diagram of the structure at the U-U section in

[0112] Figure 24 is Figure 4 Schematic diagram of the enlarged structure at position V in

[0113] Figure 25 is Figure 24 Schematic diagram of the structure at the W-W section in

[0114] Figure 26 is Figure 4 Schematic diagram of the enlarged structure at position X in

[0115] Figure 27 is Figure 26 Schematic diagram of the structure at the Y-Y section in

[0116] Figure 28 is Figure 4 Schematic diagram of the enlarged structure at position Z in

[0117] Figure 29 is Figure 28 Schematic diagram of the structure at the AB-AB section in

[0118] Figure 30 is Figure 28 Schematic diagram of the structure at the AC-AC section in

[0119] Figure 31 is Figure 28 Schematic diagram of the structure at the AD-AD section in

[0120] Figure 32 is Figure 28 Schematic diagram of the structure at the AE-AE section in

[0121] Figure 33 is Figure 32 Schematic diagram of the structure at the AF-AF section in

[0122] In the figure: 1. bottom plate; 21. upper pressing fixture; 211. upper pressing column; 2111. upper pressing limit groove; 212. upper pressing clamp cylinder; 213. upper pressing arm; 22. upper inclined supporting seat; 221. upper inclined limit groove; 311. middle pressing column; 3111. middle pressing limit groove; 312. middle pressing cylinder; 313. middle pressing arm; 32. middle flat supporting seat; 321. middle flat limit groove; 33. middle inclined supporting seat; 331. middle inclined limit groove; 411. lower pressing column; 4111. lower pressing limit groove; 412. lower pressing clamp cylinder; 413. lower pressing arm; 421. lower rod pressing column; 4211. lower rod limit groove; 422. lower rod pressing clamp cylinder; 423. lower rod pressing arm; 424. support plate; 425. in-position sensor; 511. lower frame pressing column; 5111. lower frame limit groove; 512. lower frame pressing clamp cylinder; 513. lower frame pressing arm; 521. lower frame end pressing column; 5211. inclined lower frame end limit groove; 5212. horizontal lower frame end limit groove; 522. lower frame end pressing clamp cylinder; 523. lower frame pressing arm; 611. frame pressing column; 6111. frame limit groove; 612. frame pressing clamp cylinder; 613. frame pressing arm; 711. horizontal bending rod pressing column; 7111. horizontal bending rod limit groove; 712. horizontal bending rod pressing clamp cylinder; 713. horizontal bending rod pressing arm; 721. vertical bending rod pressing column; 7211. vertical bending rod limit groove; 722. vertical bending rod pressing clamp cylinder; 723. vertical bending rod pressing arm; 73. support column; 731. support groove; 741. loose part pressing column; 7411. loose part limit groove; 742. loose part positioning column; 7421. positioning protrusion; 743. induction probe; 744. guide column; 7441. guide groove; 745. vertical bending rod limit column; 7451. vertical bending rod fixing groove; 746. loose part pressing clamp cylinder; 747. loose part pressing arm; 748. support pressing arm; 811. upper painting positioning column; 8111. upper painting positioning groove; 812. upper painting positioning pressing clamp cylinder; 813. upper painting positioning pressing arm; 821. upper painting fixing column; 8211. upper painting fixing groove; 822. upper painting fixing pressing clamp cylinder; 823. upper painting fixing pressing arm; 91. lower painting positioning part; 911. accommodation limit groove; 921. lower painting fixing column; 9211. lower painting fixing groove; 922. lower painting fixing pressing clamp cylinder; 923. lower painting fixing pressing arm; 101. upper cross bar; 102. middle cross bar; 103. lower cross bar; 104. lower frame; 105. frame; 106. side frame; 107. upper painting part; 108. lower painting part; 109. middle vertical bar. Detailed implementation manners

[0123] The present utility model will be further described below in conjunction with the accompanying drawings and embodiments.

[0124] Embodiment:

[0125] As Figure 3-33As shown in the figure, a welding fixture for an automotive seat net frame with a low net density includes:

[0126] A bottom plate 1;

[0127] An upper crossbar 101 fixing component, arranged on the bottom plate 1 to limit and fix the upper crossbar 101 of the automotive seat net frame;

[0128] A middle crossbar 102 fixing component, arranged on the bottom plate 1 to limit and fix the middle crossbar 102 of the automotive seat net frame;

[0129] A lower crossbar 103 fixing component, arranged on the bottom plate 1 to limit and fix the lower crossbar 103 of the automotive seat net frame;

[0130] A middle vertical bar 109 fixing component, arranged on the bottom plate 1 to limit and fix the middle vertical bar 109 of the automotive seat net frame;

[0131] A lower frame 104 fixing component, arranged on the bottom plate 1 to limit and fix the lower frame 104 of the automotive seat net frame;

[0132] Two side frame 105 fixing components, arranged on the bottom plate 1 in a relatively mirror - image manner, on both sides of the upper crossbar 101 fixing component, middle crossbar 102 fixing component and lower crossbar 103 fixing component, to limit and fix the two side frames 105 of the automotive seat net frame;

[0133] Two side frame 106 fixing components, arranged on the bottom plate 1 in a relatively mirror - image manner, between the two side frame 105 fixing components, to limit and fix the two side frames 106 of the automotive seat net frame;

[0134] Two upper coating part 107 fixing components, arranged on the bottom plate 1 in a relatively mirror - image manner, outside the side frame 106 fixing component, to limit and fix the two upper coating parts 107 of the automotive seat net frame;

[0135] Two lower coating part 108 fixing components, arranged on the bottom plate 1 in a relatively mirror - image manner, at the outer ends of the lower crossbar 103 fixing component, to limit and fix the two lower coating parts 108 of the automotive seat net frame.

[0136] In this embodiment, the upper crossbar 101 fixing component includes a number of upper pressing jigs 21 and a number of upper inclined supporting seats 22;

[0137] The upper pressing jig 21 includes:

[0138] At least one upper pressing column 211, vertically arranged upward on the bottom plate 1, with a horizontal upper pressing limit groove 2111 on the upper end face;

[0139] An upper pressing pliers cylinder 212, vertically arranged upward on the bottom plate 1;

[0140] Upper pressure arms 213 with the same number as the upper pressure columns 211 are hinged to the telescopic ends of the upper pressure clamp cylinders 212; as the upper pressure clamp cylinders 212 move up and down, the upper pressure arms 213 close or open the upper pressure limit grooves 2111 of the upper pressure columns 211.

[0141] The upper inclined support base 22 is vertically upwardly provided on the base plate 1 and is located between the two upper pressure clamps 21. The upper end surface of the upper inclined support base 22 is inclined, and the upper inclined limit groove 221 is provided on the upper end surface.

[0142] In this embodiment, the middle crossbar 102 fixing assembly includes a plurality of middle pressure clamps, a plurality of middle flat support bases 32, and a plurality of middle inclined support bases 33.

[0143] The middle pressure clamp includes:

[0144] At least one middle pressure column 311 is vertically upwardly provided on the base plate 1, and a horizontal middle pressure limit groove 3111 is provided on the upper end surface.

[0145] The middle pressure clamp cylinder is vertically upwardly provided on the base plate 1.

[0146] Middle pressure arms 313 with the same number as the middle pressure columns 311 are hinged to the telescopic ends of the middle pressure clamp cylinders; as the middle pressure clamp cylinders move up and down, the middle pressure arms 313 close or open the middle pressure limit grooves 3111 of the middle pressure columns 311.

[0147] The middle flat support base 32 is vertically upwardly provided on the base plate 1, the upper end surface is horizontal, and it is located between the two middle pressure clamps; a horizontal middle flat limit groove 321 is provided on the upper end surface of the middle flat support base 32.

[0148] The middle inclined support base 33 is vertically upwardly provided on the base plate 1 and is located between the two middle pressure clamps; the upper end surface of the middle inclined support base 33 is inclined, and an inclined middle inclined limit groove 331 is provided on the upper end surface.

[0149] In this embodiment, the lower crossbar 103 fixing assembly includes a plurality of lower pressure clamps and two lower rod end clamps provided on both sides of the plurality of lower pressure clamps.

[0150] The lower pressure clamp includes:

[0151] At least one lower pressure column 411 is vertically upwardly provided on the base plate 1, and a horizontal lower pressure limit groove 4111 is provided on the upper end surface.

[0152] The lower pressure clamp cylinder 412 is vertically upwardly provided on the base plate 1.

[0153] The lower pressing arms 413, which are equal in number to the medium-pressure columns 311, are hinged to the telescopic end of the lower pressing clamp cylinder 412; as the lower pressing clamp cylinder 412 moves up and down, the lower pressing arms 413 close or open the lower pressing limit slots 4111 of the lower pressing columns 411.

[0154] The lower rod end fixture includes:

[0155] The lower rod pressing column 421 is vertically arranged upward on the base plate 1, and the upper end surface is provided with an inclined lower rod limit slot 4211.

[0156] The lower rod pressing clamp cylinder 422 is vertically arranged upward on the base plate 1.

[0157] The lower rod pressing arm 423 is hinged to the telescopic end of the lower rod pressing clamp cylinder 422; as the lower rod pressing clamp cylinder 422 moves up and down, the lower rod pressing arm 423 closes or opens the lower rod limit slot 4211 of the lower rod pressing column 421.

[0158] In this embodiment, at least one side wall of the lower rod pressing column 421 is provided with a support plate 424, and a on-site sensor 425 is arranged on the support plate 424, facing the end surface of the lower rod after being placed. The on-site sensor 425 adopts a laser distance sensor to detect whether the lower rod is placed on the support plate 424 to avoid missing placement.

[0159] In this embodiment, the lower frame 104 fixing assembly includes a plurality of lower frame 104 fixtures and two lower frame 104 end fixtures arranged on both sides of the plurality of lower frame 104 fixtures.

[0160] The lower frame 104 fixture includes:

[0161] Two lower frame pressing columns 511 are arranged vertically upward on the base plate 1 at intervals, and the upper end surfaces are both provided with horizontal lower frame limit slots 5111.

[0162] The lower frame pressing clamp cylinder 512 is vertically arranged upward on the base plate 1.

[0163] The lower frame pressing arms 513, which are equal in number to the lower frame pressing columns 511, are hinged to the telescopic end of the lower frame pressing clamp cylinder 512; as the lower frame pressing clamp cylinder 512 moves up and down, the lower frame pressing arms 513 close or open the lower frame 104 pressing limit slots of the two lower frame pressing columns 511.

[0164] The lower frame 104 end fixture includes:

[0165] Two lower frame end pressing columns 521 are arranged vertically upward on the base plate 1 at intervals. The upper end surface of one lower frame end pressing column 521 is provided with an inclined lower frame end limit slot 5211, and the upper end surface of the other lower frame end pressing column 521 is provided with a horizontal lower frame end limit slot 5212.

[0166] The lower frame end pressing clamp cylinder 522 is vertically and upwardly arranged on the bottom plate 1;

[0167] The lower frame end pressing arm 523 is hinged on the telescopic end of the lower frame end pressing clamp cylinder 522; as the lower frame end pressing clamp cylinder 522 moves up and down, the lower frame end pressing arm 523 closes or opens the horizontal lower frame end limiting groove 5212 and the inclined lower frame end limiting groove 5211.

[0168] In this embodiment, the frame 105 fixing assembly includes a plurality of frame 105 clamps; the frame 105 clamps include:

[0169] At least one frame pressing column 611 is vertically and upwardly arranged on the bottom plate 1, and a frame limiting groove 6111 is provided on the upper end surface;

[0170] The frame pressing clamp cylinder 612 is vertically and upwardly arranged on the bottom plate 1;

[0171] The frame pressing arms 613 having the same number as the frame pressing columns 611 are hinged on the telescopic end of the frame pressing clamp cylinder 612; as the frame pressing clamp cylinder 612 moves up and down, the frame pressing arms 613 close or open the frame limiting groove 6111.

[0172] In this embodiment, the side frame 106 fixing assembly includes a plurality of horizontal bent bar clamps, vertical bent bar clamps, a plurality of support columns 73, and loose part clamps;

[0173] The horizontal bent bar clamp includes:

[0174] The horizontal bent bar pressing column 711 is vertically and upwardly arranged on the bottom plate 1, and a horizontal bent bar limiting groove 7111 is provided on the upper end surface;

[0175] The horizontal bent bar pressing clamp cylinder 712 is vertically and upwardly arranged on the bottom plate 1;

[0176] The horizontal bent bar pressing arms 713 having the same number as the horizontal bent bar pressing columns 711 are hinged on the telescopic end of the horizontal bent bar pressing clamp cylinder 712; as the horizontal bent bar pressing clamp cylinder 712 moves up and down, the horizontal bent bar pressing arms 713 close or open the horizontal bent bar limiting groove 7111;

[0177] The vertical bent bar clamp includes:

[0178] The vertical bent bar pressing column 721 is vertically and upwardly arranged on the bottom plate 1, and a vertical bent bar limiting groove 7211 is provided on the upper end surface;

[0179] The vertical bent bar pressing clamp cylinder 722 is vertically and upwardly arranged on the bottom plate 1;

[0180] The number of longitudinal bending rod pressing arms 723 is the same as that of the longitudinal bending rod pressing columns 721, and the longitudinal bending rod pressing arms 723 are hinged to the telescopic end of the longitudinal bending rod pressing pliers cylinder 722; as the longitudinal bending rod pressing pliers cylinder 722 moves up and down, the longitudinal bending rod pressing arms 723 close or open the longitudinal bending rod limiting groove 7211.

[0181] The loose parts fixture includes:

[0182] Loose parts pressing columns 741 are vertically arranged upward on the bottom plate 1, and loose parts limiting grooves 7411 are provided on the upper end surfaces.

[0183] Two loose parts positioning columns 742 are respectively arranged on both sides of the loose parts pressing column 741, and positioning protrusions 7421 are provided on the upper end surfaces.

[0184] Two induction probes 743 are respectively arranged on the sides of the loose parts positioning columns 742; the induction probes 743 adopt laser distance sensors to detect whether the plate parts are placed in place.

[0185] Two guiding columns 744 are respectively arranged on one side of the two loose parts positioning columns 742, and guiding grooves 7441 are provided on the upper end surfaces.

[0186] A longitudinal bending rod limiting column 745 is arranged on one side of the loose parts pressing column 741, and a longitudinal bending rod fixing groove 7451 is provided on the upper end surface.

[0187] A loose parts pressing pliers cylinder 746 is vertically arranged upward on the bottom plate 1;

[0188] Two loose parts pressing arms 747 are hinged to the telescopic end of the loose parts pressing pliers cylinder 746; as the loose parts pressing pliers cylinder 746 moves up and down, the loose parts pressing arms 747 press on or away from the upper surface of the upper loose parts positioning column 742.

[0189] A supporting pressing arm 748 is hinged to the telescopic end of the loose parts pressing pliers cylinder 746; as the loose parts pressing pliers cylinder 746 moves up and down, the supporting pressing arm 748 closes or opens the longitudinal bending rod fixing groove 7451.

[0190] The supporting column 73 is arranged on the bottom plate 1, and a supporting groove 731 is provided on the upper surface.

[0191] In this embodiment, the upper painting part fixing assembly includes: an upper painting positioning fixture and an upper painting fixing fixture;

[0192] The upper painting positioning fixture includes:

[0193] Upper painting positioning columns 811 are vertically arranged upward on the bottom plate 1, and U-shaped upper painting positioning grooves 8111 are provided on the upper end surfaces; the upper painting positioning columns 811 are made of engineering plastics.

[0194] An upper painting positioning pressing pliers cylinder 812 is vertically arranged upward on the bottom plate 1;

[0195] The upper painting positioning press arm 813 is hinged to the telescopic end of the upper painting positioning clamp cylinder 812; as the upper painting positioning clamp cylinder 812 rises and falls, the upper painting positioning press arm 813 closes or opens the upper painting positioning groove 8111.

[0196] The upper painting fixing fixture includes:

[0197] Two upper painting fixing columns 821 are vertically arranged upward at intervals on the bottom plate 1, and upper painting fixing grooves 8211 are provided on the upper end surfaces.

[0198] The upper painting fixing clamp cylinder 822 is vertically arranged upward on the bottom plate 1.

[0199] Two upper painting fixing press arms 823 are hinged to the telescopic end of the upper painting fixing clamp cylinder 822; as the upper painting fixing clamp cylinder 822 rises and falls, the upper painting fixing press arms 823 close or open the upper painting fixing grooves 8211.

[0200] In this embodiment, the lower painting part fixing assembly includes: a lower painting positioning part 91 and a lower painting fixing fixture.

[0201] A receiving and limiting groove 911 is provided on the upper surface of the lower painting positioning part 91.

[0202] The lower painting fixing fixture includes:

[0203] Two lower painting fixing columns 921 are vertically arranged upward at intervals on the bottom plate 1, and lower painting fixing grooves 9211 are provided on the upper end surfaces; the lower painting fixing columns are made of engineering plastic.

[0204] The lower painting fixing clamp cylinder 922 is vertically arranged upward on the bottom plate 1.

[0205] Two lower painting fixing press arms 923 are hinged to the telescopic end of the lower painting fixing clamp cylinder 922; as the lower painting fixing clamp cylinder 922 rises and falls, the lower painting fixing press arms 923 close or open the lower painting fixing grooves 9211.

[0206] Selecting engineering plastic for the upper painting fixing columns 821 and the lower painting fixing columns 921 can reduce scratching and abrasion of the painted parts during installation and picking and placing, and at the same time reduce the conductivity during welding between the painted parts and other components, thus damaging the paint film coating.

[0207] This embodiment is used as follows. First, control all the cylinders to shorten, open all the slots, and then sequentially place the corresponding rods, plates, painted parts, etc. After placement, use the induction probe 743 and position sensors to determine that all the rods and components are placed in place. Subsequently, control all the cylinders to extend to shield all the slots, thereby limiting and fixing all the components. Finally, start the welding equipment to weld all the rod components together. After welding is completed, control all the cylinders to shorten again, open all the slots, and then take out the welded assembly.

[0208] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced without departing from the spirit and scope of the present technical solution, and they should all be covered within the scope of the claims of the present invention.

Claims

1. A low mesh density automotive seat mesh frame welding fixture, characterized in that: include: Base plate; An upper crossbar fixing assembly is arranged on the bottom plate and limits and fixes the upper crossbar of the automobile seat net frame; A middle crossbar fixing assembly is arranged on the bottom plate to limit and fix the middle crossbar of the car seat net frame; A lower crossbar fixing assembly is arranged on the bottom plate to limit and fix the lower crossbar of the automobile seat net frame; A lower frame fixing assembly is arranged on the bottom plate to limit and fix the lower frame of the automobile seat net frame; Two frame fixing components are arranged on the bottom plate in a mirror image, located on both sides of the upper crossbar fixing component, the middle crossbar fixing component and the lower crossbar fixing component, and limit and fix the two frames of the automobile seat net frame; Two side frame fixing components are arranged on the bottom plate in a mirror image, located between the two frame fixing components, and limit and fix the two side frames of the automobile seat net frame; Two upper coating parts fixing components are arranged on the bottom plate in a mirror image, located outside the side frame fixing components, and limit and fix the two upper coating parts of the automobile seat net frame; Two lower coating part fixing components are arranged on the bottom plate in a mirror image and are located at the outer end of the lower cross bar fixing component to limit and fix the two lower coating parts of the automobile seat net frame.

2. The low mesh density automobile seat mesh frame welding fixture according to claim 1, characterized in that: The upper crossbar fixing assembly includes a plurality of upper pressing clamps and a plurality of upper inclined supporting seats; The upper pressing fixture comprises: At least one upper pressure column is vertically arranged on the bottom plate, and the upper end surface is provided with a horizontal upper pressure limiting groove; The upper pressure clamp cylinder is vertically upwardly arranged on the bottom plate; The upper pressure arms, which are the same in number as the upper pressure columns, are hinged on the telescopic end of the upper pressure clamp cylinder; as the upper pressure clamp cylinder rises and falls, the upper pressure arms close or open the upper pressure limit grooves of the upper pressure columns; The upward inclined support seat is vertically arranged on the bottom plate and located between the two upper pressing clamps. The upper end surface of the upward inclined support seat is inclined and is provided with an inclined upward inclined limiting groove.

3. The low mesh density automotive seat mesh frame welding fixture according to claim 1, characterized in that: The middle crossbar fixing assembly includes a plurality of middle pressure clamps, a plurality of middle flat support seats, and a plurality of middle oblique support seats; The medium pressure fixture comprises: At least one medium-pressure column is vertically arranged on the bottom plate, and a horizontal medium-pressure limiting groove is provided on the upper end surface; The medium-pressure clamp cylinder is vertically upwardly arranged on the bottom plate; The medium-pressure arms, which are the same in number as the medium-pressure columns, are hinged on the telescopic end of the medium-pressure clamp cylinder; as the medium-pressure clamp cylinder rises and falls, the medium-pressure arms close or open the medium-pressure limit grooves of the medium-pressure columns; The middle flat support seat is vertically arranged on the bottom plate, with the upper end surface being horizontal, and is located between the two middle pressure clamps; the upper end surface of the middle flat support seat is provided with a horizontal middle flat limit groove; The middle oblique support seat is vertically upwardly arranged on the bottom plate and located between the two middle pressure clamps; the upper end surface of the middle oblique support seat is inclined, and an inclined middle oblique limiting groove is provided on the upper end surface.

4. The low mesh density automotive seat mesh frame welding fixture according to claim 1, characterized in that: The lower crossbar fixing assembly includes a plurality of pressing clamps and two lower rod end clamps arranged on both sides of the plurality of pressing clamps; The pressing fixture comprises: At least one downward pressure column is vertically arranged on the bottom plate, and the upper end surface is provided with a horizontal downward pressure limiting groove; The lower clamp cylinder is vertically upwardly arranged on the bottom plate; The same number of lower pressure arms as the middle pressure column is hinged on the telescopic end of the lower pressure clamp cylinder; as the lower pressure clamp cylinder rises and falls, the lower pressure arm closes or opens the lower pressure limit groove of the lower pressure column; The lower rod end fixture comprises: The lower rod pressure column is vertically arranged on the bottom plate, and the upper end surface is provided with an inclined lower rod limiting groove; The lower rod clamp cylinder is vertically upwardly arranged on the bottom plate; The lower rod pressing arm is hinged on the telescopic end of the lower rod pressing clamp cylinder; along with the lifting and lowering of the lower rod pressing clamp cylinder, the lower rod pressing arm closes or opens the lower rod limiting groove of the lower rod pressing column.

5. The low mesh density automobile seat mesh frame welding fixture according to claim 4, characterized in that: A support plate is provided on the side wall of at least one of the lower rod pressure columns, and an in-position sensor is provided on the support plate, facing the end face of the lower rod after placement.

6. The low mesh density automotive seat mesh frame welding fixture according to claim 1, characterized in that: The lower frame fixing assembly includes a plurality of lower frame clamps and two lower frame end clamps arranged on both sides of the plurality of lower frame clamps; The lower frame fixture comprises: Two lower frame pressure columns are arranged vertically upward on the bottom plate at intervals, and the upper end surfaces are both provided with horizontal lower frame limiting grooves; The clamp cylinder at the lower frame end is vertically upwardly arranged on the bottom plate; The lower frame pressing arms, which have the same number as the lower frame pressing columns, are hinged on the telescopic end of the lower frame pressing clamp cylinder; as the lower frame pressing clamp cylinder rises and falls, the lower frame pressing arms close or open the lower frame pressing limit grooves of the two lower frame pressing columns; The lower frame end fixture comprises: Two lower frame pressing columns are arranged vertically upward on the bottom plate at intervals, wherein an upper end surface of one of the lower frame pressing columns is provided with an inclined lower frame end limiting groove, and an upper end surface of the other lower frame pressing column is provided with a horizontal lower frame end limiting groove; The clamp cylinder at the lower frame end is vertically upwardly arranged on the bottom plate; The lower frame end pressing arm is hinged on the telescopic end of the lower frame end pressing clamp cylinder; as the lower frame end pressing clamp cylinder rises and falls, the lower frame end pressing arm closes or opens the horizontal lower frame end limiting groove and the inclined lower frame end limiting groove.

7. The low mesh density automotive seat mesh frame welding fixture according to claim 1, characterized in that: The frame fixing assembly includes a plurality of frame clamps; the frame clamps include: At least one frame pressure column is vertically arranged on the bottom plate and has a frame limiting groove on its upper end surface; The frame clamp cylinder is vertically arranged on the bottom plate; The frame pressing arms, which have the same number as the frame pressing columns, are hinged on the telescopic end of the frame pressing clamp cylinder; as the frame pressing clamp cylinder rises and falls, the frame pressing arms close or open the frame limiting grooves.

8. The low mesh density automotive seat mesh frame welding fixture according to claim 1, characterized in that: The side frame fixing assembly includes a plurality of transverse bending rod clamps, a longitudinal bending rod clamp, a plurality of support columns, and a loose parts clamp; The horizontal bending rod clamp comprises: The horizontal bending rod pressure column is vertically arranged on the bottom plate, and the upper end surface is provided with a horizontal bending rod limiting groove; The horizontal bending rod pressing clamp cylinder is vertically arranged on the bottom plate; The horizontal bending rod pressure arms, which have the same number as the horizontal bending rod pressure columns, are hinged on the telescopic end of the horizontal bending rod pressure clamp cylinder; as the horizontal bending rod pressure clamp cylinder rises and falls, the horizontal bending rod pressure arms close or open the horizontal bending rod limit grooves; The longitudinal bending rod clamp comprises: The longitudinal bending rod pressure column is vertically arranged on the bottom plate, and the upper end surface is provided with a longitudinal bending rod limiting groove; The longitudinal bending rod pressing clamp cylinder is vertically upwardly arranged on the bottom plate; The longitudinal bending rod pressing arms, which have the same number as the longitudinal bending rod pressing columns, are hinged on the telescopic end of the longitudinal bending rod pressing clamp cylinder; as the longitudinal bending rod pressing clamp cylinder rises and falls, the longitudinal bending rod pressing arms close or open the longitudinal bending rod limiting grooves; The loose parts fixture comprises: The loose parts pressure column is vertically arranged on the bottom plate, and the upper end surface is provided with a loose parts limiting groove; Two loose parts positioning columns are respectively arranged on both sides of the loose parts pressure column, and the upper end surfaces are provided with positioning protrusions; Two induction probes are respectively arranged on the sides of the loose parts positioning column; Two guide columns are respectively arranged on one side of two loose parts positioning columns, and the upper end surfaces are provided with guide grooves; A longitudinal bending rod limiting column is arranged on one side of the bulk pressure column, and a longitudinal bending rod fixing groove is arranged on the upper end surface; The loose parts pressing clamp cylinder is vertically arranged on the bottom plate; Two loose parts pressing arms are hinged on the telescopic end of the loose parts pressing clamp cylinder; as the loose parts pressing clamp cylinder rises and falls, the loose parts pressing arms will press or move away from the upper surface of the upper loose parts positioning column; The supporting and pressing arm is hinged on the telescopic end of the cylinder of the loose parts pressing clamp; as the cylinder of the loose parts pressing clamp rises and falls, the supporting and pressing arm closes or opens the fixing groove of the longitudinal bending rod; The support column is arranged on the bottom plate, and a support groove is arranged on the upper surface thereof.

9. The low mesh density automotive seat mesh frame welding fixture according to claim 1, characterized in that: The upper coating part fixing assembly includes: an upper coating positioning fixture and an upper coating fixing fixture; The upper coating positioning fixture comprises: The upper coating positioning column is vertically arranged on the bottom plate, and the upper end surface is provided with a U-shaped upper coating positioning groove; the upper coating positioning column is made of engineering plastic; The upper coating positioning clamp cylinder is vertically upwardly arranged on the bottom plate; The upper coating positioning pressure arm is hinged on the telescopic end of the upper coating positioning pressure clamp cylinder; as the upper coating positioning pressure clamp cylinder rises and falls, the upper coating positioning pressure arm closes or opens the upper coating positioning groove; The upper coating fixing fixture comprises: Two upper coating fixing columns are arranged vertically upward on the bottom plate at intervals, and upper end surfaces of the columns are provided with upper coating fixing grooves; The upper coating fixed clamp cylinder is vertically upwardly arranged on the bottom plate; Two upper coating fixed pressure arms are hinged on the telescopic end of the upper coating fixed pressure clamp cylinder; along with the lifting and lowering of the upper coating fixed pressure clamp cylinder, the upper coating fixed pressure arms close or open the upper coating fixed groove.

10. The low mesh density automotive seat mesh frame welding fixture according to claim 1, characterized in that: The lower coating part fixing assembly includes: a lower coating positioning part and a lower coating fixing fixture; The upper surface of the lower coating positioning member is provided with a accommodating limit groove; The lower coating fixing fixture comprises: Two lower coating fixing columns are arranged vertically upward on the bottom plate at intervals, and the upper end surfaces are both provided with lower coating fixing grooves; the lower coating fixing columns are made of engineering plastics; The lower coating fixed clamp cylinder is vertically upwardly arranged on the bottom plate; Two lower painting fixed pressure arms are hinged on the telescopic end of the lower painting fixed pressure clamp cylinder; along with the lifting and lowering of the lower painting fixed pressure clamp cylinder, the lower painting fixed pressure arms close or open the lower painting fixed groove.

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