Welding fixture for automobile rear row six-part backrest assembly

Abstract

The utility model discloses a welding fixture for an automobile rear row six-part backrest assembly. The welding fixture comprises a bottom plate; the frame unit is arranged on the bottom plate and is used for positioning and limiting a frame; the seat net unit is arranged on the bottom plate, located in the frame limiting unit and used for positioning and limiting the seat net piece located in the frame; the outer rod units are arranged on the bottom plate, located on the four outer sides of the frame and used for positioning and limiting the rod pieces located on the four outer sides of the frame; the side pasting unit is arranged on the bottom plate, located on the lower side of the frame and used for limiting and fixing the side pasting plate; the lug plate units are arranged on the bottom plate, located on the left side and the right side of the frame and used for limiting and fixing the lug plates. According to the utility model, the integral welding stage number can be reduced, all parts needing to be welded are limited and fixed at one time, and the production efficiency and the welding quality are improved.

Description

Technical Field

[0001] The utility model relates to the field of welding fixtures, in particular to a welding fixture for a six-part rear seat backrest assembly of an automobile. Background Art

[0002] The rear seats of a car are usually three-seaters, and some of them adopt a 4:6 folding structure. Therefore, the structure of the backrest that can be folded in six parts is different from the conventional fully fixed backrest assembly. The welding of the six-part folding backrest assembly requires welding multiple small rods and the frame into one to form a backrest assembly, such as Figure 1 , 2 At present, the six-point backrest assembly needs to weld many seat net rods, outer rods and external structures. Conventional clamps cannot complete the positioning and limiting of all parts at one time, and welding needs to be carried out step by step (such as welding of the frame). However, such step-by-step welding requires more processes, and each welded component is individually limited and fixed during step-by-step welding, which will magnify the error in the end, resulting in low product quality. Utility Model Content

[0003] In view of the above-mentioned defects of the prior art, the purpose of the utility model is to provide a welding fixture for a six-point rear seat backrest assembly of an automobile, which can reduce the number of overall welding levels, limit and fix all parts that need to be welded at one time, and improve production efficiency and welding quality.

[0004] The purpose of the utility model is achieved through such technical solution:

[0005] A welding fixture for a six-point rear seat backrest assembly of an automobile, comprising:

[0006] Base plate;

[0007] A frame unit is arranged on the bottom plate to position and limit the frame;

[0008] A seat net unit is arranged on the bottom plate and is located in the frame limit unit to position and limit the seat net member located in the frame;

[0009] The outer rod unit is arranged on the bottom plate and located at the four outer sides of the frame, and is used to position and limit the rods located at the four outer sides of the frame;

[0010] The side sticking unit is arranged on the bottom plate, located at the lower side of the frame, and limits and fixes the side sticking plate;

[0011] The ear plate unit is arranged on the bottom plate and located on the left and right sides of the frame to limit and fix the ear plate.

[0012] Furthermore, the framework unit comprises:

[0013] A plurality of frame seats are arranged on the bottom plate, and the upper end surfaces are provided with through accommodating grooves for sliding and limiting positions with the frame;

[0014] A plurality of frame quick clamps are arranged on the bottom plate and press against the upper surface of the frame placed in the receiving groove;

[0015] At least two frame positioning columns are arranged on the floor and face the frame positioning holes.

[0016] Furthermore, the seat net unit comprises:

[0017] The large position part is arranged on the bottom plate directly opposite to the large position of the frame, and limits and fixes the large position grid located on the large position of the frame;

[0018] The middle part is arranged on the bottom plate directly opposite to the middle position of the frame, and limits and fixes the middle rod located at the middle position of the frame;

[0019] The cross-rod part is arranged on a bottom plate directly opposite to the middle position of the frame, and limits and fixes the cross-rod located on the frame.

[0020] Furthermore, the large portion, the middle portion, and the cross-bar portion all include:

[0021] A plurality of seat nets, each having an upper end surface provided with a through receiving groove; the receiving grooves of at least two seat nets on the large portion, the middle portion, and the cross-rod portion are arranged at an angle to each other;

[0022] A plurality of seat net quick clamps are arranged on the bottom plate, and at least two seat net quick clamps are arranged on the large position part, the middle position part and the cross rod part.

[0023] Furthermore, at least one seat net quick clamp of the large position part further comprises: a pressure plate, which is arranged on the pressure arm of the seat net quick clamp, and presses and limits the outer side of the welding place between the frame support plate and the large position net frame;

[0024] A frame quick clamp is also provided at the connection between the frame support plate and the large grid frame. A pressure plate is also provided on the pressure arm of the frame quick clamp to press and limit the outer side of the welding point between the frame support plate and the large grid frame.

[0025] Furthermore, the outer rod unit includes four outer rod parts, which are respectively located at four outer sides of the frame; the outer rod parts include:

[0026] At least two outer rod seats, the upper end surfaces of which are provided with through accommodating grooves; at least two outer rod accommodating grooves are arranged at an angle to each other;

[0027] At least two outer rod quick clamps are arranged on the bottom plate to press and limit the outer rod located in the outer rod seat.

[0028] Furthermore, the outer rod portion further includes:

[0029] The limiting slide seat has a sliding direction facing the frame; the outer rod seat and the outer rod quick reinforcement are arranged on the limiting slide seat; the plane where the accommodating groove on the outer rod seat is located is perpendicular to the sliding direction of the limiting slide seat;

[0030] The control cylinder is arranged on the bottom plate and controls the sliding of the limit slide.

[0031] Furthermore, the side sticker unit comprises:

[0032] The side mount is arranged on the bottom plate, and the upper surface thereof is provided with a limiting groove matching the structure on the frame;

[0033] The side post positioning column is set on the side post seat to limit the side post plate

[0034] The side-stick quick clamp is arranged on the side-stick seat. The side-stick quick clamp has two pressing arms, which respectively press the side-stick plate surface and the large surface of the side-stick plate protruding from the side-stick positioning column laterally, so that the side-stick plate is tightly attached to the frame.

[0035] Further, the ear plate unit comprises a left ear plate portion and a right ear plate portion;

[0036] The left ear plate portion comprises:

[0037] The left ear plate seat has an ear plate positioning column on the upper surface;

[0038] The left ear plate quick clamp is located on the outside of the left ear plate seat. The left ear plate quick clamp has two pressing arms, which respectively press the ear plate surface of the ear plate positioning column downward and squeeze the large surface of the left ear plate laterally, so that the large surface of the left ear plate is tightly attached to the side of the frame;

[0039] The right ear plate portion comprises:

[0040] The right ear plate seat has an upper surface provided with an accommodating groove, one wing plate of the right ear plate is located in the accommodating groove, and the plate surface of the other wing plate contacts the surface of the frame.

[0041] Furthermore, it also includes a plurality of ejection cylinders, which are arranged on the floor; the ejection ends of the plurality of ejection cylinders are respectively facing the frame and the side plate.

[0042] Due to the adoption of the above technical solution, the utility model has the following advantages:

[0043] The frame unit effectively limits and fixes the welded main frame, and uses this as the positioning basis to place the seat mesh unit, outer rod unit, side stick unit and ear plate unit, so that all parts that need to be welded are fixed in position, which is convenient for welding equipment to weld at one time and reduces welding grading. At the same time, all parts are fixed in position by the frame at one time, avoiding the amplification of the positioning errors of various parts caused by the change of the limit fixation basis during the grading welding process.

[0044] Other advantages, objectives and features of the present invention will be described in the following description to some extent, and will be apparent to those skilled in the art based on the following examination and study, or may be taught from the practice of the present invention to some extent. BRIEF DESCRIPTION OF THE DRAWINGS

[0045] The accompanying drawings of the present utility model are as follows:

[0046] Figure 1 This is a schematic diagram of the top view of the six-point rear seat backrest assembly after welding.

[0047] Figure 2 This is a schematic diagram of the three-dimensional structure of the six-part rear seat backrest assembly of the car after welding.

[0048] Figure 3 Schematic diagram of the top view of the welding fixture for the six-part rear seat backrest assembly of the automobile in the embodiment.

[0049] Figure 4 for Figure 3 Enlarged structural diagram at A in the middle.

[0050] Figure 5 for Figure 3 Enlarged structural diagram at B in the middle.

[0051] Figure 6 for Figure 3 Enlarged structural diagram at point C in the middle.

[0052] Figure 7 for Figure 6 Schematic diagram of the structure of the DD section.

[0053] Figure 8 for Figure 3 Enlarged structural diagram at E in the middle.

[0054] Fig. 9 for Figure 8 Schematic diagram of the structure of the FF section.

[0055] Fig.10 Schematic diagram of the front view of the welding fixture for the six-part rear seat backrest assembly of the automobile in the embodiment.

[0056] Fig.11 It is a schematic diagram of the three-dimensional structure of the welding fixture of the six-part rear seat backrest assembly of the automobile in the embodiment.

[0057] Fig.12 for Fig.11 Enlarged structural diagram at G in the middle.

[0058] Fig.13 for Fig.11Enlarged structural diagram at H in the middle.

[0059] Fig.14 for Fig.11 Enlarged structural diagram at J in the middle.

[0060] Fig.15 for Fig.11 Enlarged structural diagram at K in the middle.

[0061] Fig.16 for Fig.11 Enlarged structural diagram at L in the middle.

[0062] Fig.17 It is a front view structural schematic diagram of the six-part rear seat backrest assembly of the automobile after the assembly is fixed by the welding fixture in the embodiment.

[0063] Fig.18 It is a front view structural schematic diagram of the six-part rear seat backrest assembly of the automobile after the assembly is fixed by the welding fixture in the embodiment.

[0064] In the figure: 1. bottom plate; 21. frame seat; 22. frame quick clamp; 23. frame positioning column; 31. large position part; 32. middle position part; 33. cross rod part; 34. seat net seat; 35. seat net quick clamp; 41. outer rod seat; 42. outer rod quick clamp; 43. limit slide; 44. control cylinder; 51. side stick seat; 52. side stick positioning column; 53. side stick quick clamp; 61. left ear plate seat; 611. ear plate positioning column; 62. left ear plate quick clamp; 63. right ear plate seat; 631. accommodating groove; 7. pressure plate; 8. ejector cylinder; 100. frame; 201. large position grid; 202. middle position rod; 203. cross rod; 300. outer rod; 400. side stick plate; 500. left ear plate; 600. right ear plate. DETAILED DESCRIPTION

[0065] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0066] Example:

[0067] like Figure 3-16 As shown, the welding fixture for the six-point backrest assembly of the rear seat of the car includes:

[0068] Bottom plate 1;

[0069] The frame unit is arranged on the bottom plate 1 to position and limit the frame 100;

[0070] The seat net unit is arranged on the bottom plate 1 and is located in the limiting unit of the frame 100 to position and limit the seat net member located in the frame 100;

[0071] The outer rod unit is arranged on the bottom plate 1 and is located at the four outer sides of the frame 100 to position and limit the rods located at the four outer sides of the frame 100;

[0072] The side sticking unit is arranged on the bottom plate 1, located at the lower side of the frame 100, and limits and fixes the side sticking plate member 400;

[0073] The ear plate unit is arranged on the bottom plate 1 and is located on the left and right sides of the frame 100 to limit and fix the ear plates.

[0074] The frame unit effectively limits and fixes the welded main frame 100, and uses this as a positioning basis to place the seat mesh unit, outer rod unit, side stick unit and ear plate unit, so that all parts that need to be welded are fixed in position, which is convenient for welding equipment to weld at one time and reduces welding grading. At the same time, all parts are fixed in position by the frame 100 at one time, avoiding the amplification of the positioning errors of various parts caused by the change of the limit fixation basis during the grading welding process.

[0075] In this embodiment, the framework unit includes:

[0076] A plurality of frame 100 seats 21 are arranged on the bottom plate 1, and a through receiving groove is provided on the upper end surface to slide and limit with the frame 100;

[0077] A plurality of frame 100 quick clamps 22 are arranged on the bottom plate 1 and press the upper surface of the frame 100 placed in the receiving groove;

[0078] At least two frame 100 positioning posts 23 are disposed on the floor and face the frame 100 positioning holes.

[0079] The frame 100 is limited by the positioning columns 23 of the frame 100, and then fixed by the quick clamps 22 of the frame 100.

[0080] In this embodiment, the seat net unit includes:

[0081] The large position part 31 is arranged on the bottom plate 1 directly facing the large position of the frame 100, and limits and fixes the large position grid 201 located on the large position of the frame 100;

[0082] The middle portion 32 is disposed on the bottom plate 1 directly opposite to the middle position of the frame 100, and limits and fixes the middle rod 202 located at the middle position of the frame 100;

[0083] The cross-rod portion 33 is disposed on the bottom plate 1 directly opposite to the center of the frame 100 , and limits and fixes the cross-rod 203 on the frame 100 .

[0084] In this embodiment, the large portion 31, the middle portion 32, and the cross-bar portion 33 all include:

[0085] A plurality of seat net seats 34 are provided with through receiving grooves on the upper end surfaces; the receiving grooves of at least two seat net seats 34 on the large portion 31, the middle portion 32, and the cross-bar portion 33 are arranged at an angle to each other;

[0086] A plurality of seat net quick clamps 35 are arranged on the bottom plate 1 , and at least two seat net quick clamps 35 are arranged on the large portion 31 , the middle portion 32 , and the cross-rod portion 33 .

[0087] In this embodiment, at least one seat net quick clamp 35 of the large position part 31 further includes: a pressing plate 7, which is arranged on the pressing arm of the seat net quick clamp 35, and presses and limits the outer side of the welding point between the frame 100 support plate and the large position net frame 201;

[0088] A frame 100 quick clamp 22 is also provided at the connection between the frame 100 support plate and the large grid 201. A pressing plate 7 is also provided on the pressing arm of the frame 100 quick clamp 22 to press and limit the outer side of the welding point between the frame 100 support plate and the large grid 201.

[0089] The support plate of the frame 100 is in the form of a thin sheet, which is easily deformed by heat during welding. At this time, the deformation of the support plate of the frame 100 is limited by the pressing plate 7 to ensure the state of the support plate.

[0090] In this embodiment, the outer rod unit includes four outer rods 300, which are respectively located at four outer sides of the frame 100; the outer rods 300 include:

[0091] At least two outer rod seats 41 have through-going receiving grooves on their upper end surfaces; at least two outer rod receiving grooves 300 are arranged at an angle to each other;

[0092] At least two outer rod quick clamps 42 are arranged on the base plate 1 to press and limit the outer rod 300 located in the outer rod seat 41.

[0093] The accommodating grooves of the outer rod 300 are at an angle to each other so that the outer rod 300 is directly limited after being inserted, thereby eliminating the need for a positioning and limiting member.

[0094] In this embodiment, the outer rod 300 further includes:

[0095] The limiting slide 43 has a sliding direction facing the frame 100; the outer rod seat 41 and the outer rod 300 are quickly reinforced and arranged on the limiting slide 43; the plane where the accommodating groove on the outer rod seat 41 is located is perpendicular to the sliding direction of the limiting slide 43;

[0096] The control cylinder 44 is disposed on the base plate 1 and controls the sliding of the limit slide 43 .

[0097] Part of the outer rod 300 is welded perpendicular to the frame 100. At this time, after the outer rod 300 is welded only by relying on the conventional outer rod seat 41 and the outer rod quick clamp 42, the assembly itself is limited in the plane. At this time, the outer rod 300 and the outer rod seat 41 limit the Z-axis of the assembly, so that the assembly is completely limited and stuck and cannot be removed. Therefore, it is necessary to adjust the restriction placement of the outer rod 300 perpendicular to the frame 100. Setting a sliding seat can separate the outer rod seat 41 and the outer rod 300 first, so that the assembly can be smoothly removed.

[0098] In this embodiment, the side sticker unit includes:

[0099] The side mount 51 is arranged on the bottom plate 1, and a limiting groove matching the structure on the frame 100 is provided on the upper surface;

[0100] The side stick positioning column 52 is arranged on the side stick seat 51 to limit the side stick plate 400.

[0101] The side stick quick clamp 53 is arranged on the side stick seat 51. The side stick quick clamp 53 has two pressing arms, which respectively press the surface of the side stick plate 400 protruding from the side stick positioning column 52 and the large surface of the side stick plate 400 laterally, so that the side stick plate 400 is tightly attached to the frame 100.

[0102] In this embodiment, the ear plate unit includes 500 left ear plates and 600 right ear plates;

[0103] The left ear plate 500 comprises:

[0104] The left ear plate seat 61 has an ear plate positioning column 611 on its upper surface;

[0105] The left ear plate quick clamp 62 is located on the outside of the left ear plate seat 61. The left ear plate quick clamp 62 has two pressing arms, which respectively press the ear plate surface of the ear plate positioning column 611 downward and squeeze the large surface of the left ear plate 500 laterally, so that the large surface of the left ear plate 500 is in close contact with the side surface of the frame 100;

[0106] The right ear plate 600 comprises:

[0107] The right ear plate seat 63 has an upper surface provided with an accommodating groove 631 , one wing plate of the right ear plate 600 is located in the accommodating groove 631 , and the plate surface of the other wing plate contacts the surface of the frame 100 .

[0108] It also includes a plurality of ejection cylinders 8, which are arranged on the floor; the ejection ends of the plurality of ejection cylinders 8 are respectively facing the frame 100 and the side plate 400.

[0109] This embodiment is used as follows: the quick clamps all adopt a cylinder structure to achieve automatic control; all parts to be welded are placed in the corresponding positions, and then all quick clamps are controlled to press the parts tightly, and then the two control cylinders 44 are controlled to move the two outer rods 300 to the frame 100 and contact the frame 100. Finally, Fig.17 , 18 shown.

[0110] After all parts are welded to the frame 100 using welding equipment, the above operation is reversed to complete the release of the assembly, and then the ejection cylinder is started to eject the assembly and separate it from the fixture.

[0111] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution, which should be included in the scope of the claims of the utility model.

Claims

1. A welding fixture for a six-point rear seat backrest assembly of an automobile, characterized in that: include: Base plate; A frame unit is arranged on the bottom plate to position and limit the frame; A seat net unit is arranged on the bottom plate and is located in the frame limit unit to position and limit the seat net member located in the frame; The outer rod unit is arranged on the bottom plate and located at the four outer sides of the frame, and is used to position and limit the rods located at the four outer sides of the frame; The side sticking unit is arranged on the bottom plate, located at the lower side of the frame, and limits and fixes the side sticking plate; The ear plate unit is arranged on the bottom plate and located on the left and right sides of the frame to limit and fix the ear plate.

2. The welding fixture for the six-part rear seat backrest assembly of an automobile according to claim 1 is characterized in that: The framework unit comprises: A plurality of frame seats are arranged on the bottom plate, and the upper end surfaces are provided with through accommodating grooves for sliding and limiting positions with the frame; A plurality of frame quick clamps are arranged on the bottom plate and press against the upper surface of the frame placed in the receiving groove; At least two frame positioning columns are arranged on the floor and face the frame positioning holes.

3. The welding fixture for the six-part rear seat backrest assembly of an automobile according to claim 1 is characterized in that: The seat net unit comprises: The large position part is arranged on the bottom plate directly opposite to the large position of the frame, and limits and fixes the large position grid located on the large position of the frame; The middle part is arranged on the bottom plate directly opposite to the middle position of the frame, and limits and fixes the middle rod located at the middle position of the frame; The cross-rod part is arranged on a bottom plate directly opposite to the middle position of the frame, and limits and fixes the cross-rod located on the frame.

4. The welding fixture for the six-part rear seat backrest assembly of an automobile according to claim 3 is characterized in that: The large portion, the middle portion, and the cross-bar portion all include: A plurality of seat nets, each having an upper end surface provided with a through receiving groove; the receiving grooves of at least two seat nets on the large portion, the middle portion, and the cross-rod portion are arranged at an angle to each other; A plurality of seat net quick clamps are arranged on the bottom plate, and at least two seat net quick clamps are arranged on the large position part, the middle position part and the cross rod part.

5. The welding fixture for the six-part rear seat backrest assembly of an automobile according to claim 4 is characterized in that: At least one seat net quick clamp of the large position part further includes: a pressure plate, which is arranged on the pressure arm of the seat net quick clamp and presses and limits the outer side of the welding place between the frame support plate and the large position net frame; A frame quick clamp is also provided at the connection between the frame support plate and the large grid frame. A pressure plate is also provided on the pressure arm of the frame quick clamp to press and limit the outer side of the welding point between the frame support plate and the large grid frame.

6. The welding fixture for the six-part rear seat backrest assembly of an automobile according to claim 4, characterized in that: The outer rod unit includes four outer rod parts, which are respectively located at four outer sides of the frame; the outer rod parts include: At least two outer rod seats, the upper end surfaces of which are provided with through accommodating grooves; at least two outer rod accommodating grooves are arranged at an angle to each other; At least two outer rod quick clamps are arranged on the bottom plate to press and limit the outer rod located in the outer rod seat.

7. The welding fixture for the six-part rear seat backrest assembly of an automobile according to claim 6, characterized in that: The outer rod also includes: The limiting slide seat has a sliding direction facing the frame; the outer rod seat and the outer rod quick reinforcement are arranged on the limiting slide seat; the plane where the accommodating groove on the outer rod seat is located is perpendicular to the sliding direction of the limiting slide seat; The control cylinder is arranged on the bottom plate and controls the sliding of the limit slide.

8. The welding fixture for the six-part rear seat backrest assembly of an automobile according to claim 1, characterized in that: The side sticking unit comprises: The side mount is arranged on the bottom plate, and the upper surface thereof is provided with a limiting groove matching the structure on the frame; The side post positioning column is set on the side post seat to limit the side post plate The side-stick quick clamp is arranged on the side-stick seat. The side-stick quick clamp has two pressing arms, which respectively press the side-stick plate surface and the large surface of the side-stick plate protruding from the side-stick positioning column laterally, so that the side-stick plate is tightly attached to the frame.

9. The welding fixture for the six-part rear seat backrest assembly of an automobile according to claim 1, characterized in that: The ear plate unit comprises a left ear plate portion and a right ear plate portion; The left ear plate portion comprises: The left ear plate seat has an ear plate positioning column on the upper surface; The left ear plate quick clamp is located on the outside of the left ear plate seat. The left ear plate quick clamp has two pressing arms, which respectively press the ear plate surface of the ear plate positioning column downward and squeeze the large surface of the left ear plate laterally, so that the large surface of the left ear plate is tightly attached to the side of the frame; The right ear plate portion comprises: The right ear plate seat has an upper surface provided with an accommodating groove, one wing plate of the right ear plate is located in the accommodating groove, and the plate surface of the other wing plate contacts the surface of the frame.

10. The welding fixture for the six-part rear seat backrest assembly of an automobile according to claim 1, characterized in that: It also comprises a plurality of ejection cylinders which are arranged on the floor; the ejection ends of the plurality of ejection cylinders are respectively facing the frame and the side plate.

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