Fixing bolt welding and positioning device for overhead air conditioner of passenger car

Abstract

The utility model relates to the technical field of passenger cars, in particular to a passenger car overhead air conditioner fixing bolt welding positioning device, a positioning frame comprises a first supporting beam, a second supporting beam and a third supporting beam which are arranged at intervals, and first positioning assemblies are arranged between the first supporting beam and the second supporting beam at intervals. Positioning assemblies II are arranged between the supporting beam II and the supporting beam III at intervals; each of the first positioning assembly and the second positioning assembly comprises a fixing plate and two connecting beams, a plurality of fixing plates are arranged between the two connecting beams at intervals, and sleeves are vertically arranged on the fixing plates; an air outlet positioning hole is formed by a gap between the two connecting beams of the positioning assembly II; two cross beams are further arranged between the second supporting beam and the third supporting beam, and a gap between the two cross beams forms an air return positioning hole. The tool can effectively ensure the perpendicularity and parallelism of the bolts on the roof framework, ensures that the bolts correspond to air conditioner mounting holes after being welded and fixed, and improves the quality of air conditioner assembly.

Description

Technical Field

[0001] The utility model relates to the technical field of buses, in particular to a welding and positioning device for fixing bolts of a roof-mounted air conditioner of a bus. Background Art

[0002] The air conditioner in a bus is usually a roof-mounted air conditioner, which can provide passengers with a comfortable riding environment, reduce the driver's fatigue and improve driving safety. The air conditioner can control the temperature, humidity and air cleanliness inside the bus, and can also remove frost on the windshield, maintain the driver's field of vision and improve driving safety.

[0003] When the air conditioner is installed, the air conditioner mounting holes cooperate with the bolts on the roof frame to fix the air conditioner. The existing method of installing bolts on the roof frame is to embed a steel plate on the roof frame, and reserve mounting holes in advance on the embedded steel plate according to the positions of the air conditioner mounting holes. The embedded steel plate is welded during the production of the roof frame, and the bolts are passed through the roof frame from bottom to top at the reserved mounting holes, and then the hexagonal head base of the bolt is welded to the embedded steel plate. However, the accuracy of the bolt position after welding in this way can only be guaranteed by the accuracy of the welding position of the embedded steel plate, and the verticality and parallelism of the bolts after welding and fixing cannot be guaranteed. The verticality and parallelism accuracy of the bolts are low. When assembling the air conditioner, it is easy for the bolts to not correspond to the air conditioner mounting holes or the angles of the bolts to be incorrect after welding and fixing, which affects the quality of the air conditioner assembly. Summary of the invention

[0004] The utility model aims to solve the problems in the prior art that the verticality and parallelism accuracy of bolts on the roof frame are low and the bolts are not aligned with the air-conditioning installation holes after being welded and fixed. A welding positioning device for fixing bolts of the roof air-conditioning of a passenger car is provided, which can effectively ensure the verticality and parallelism of the bolts on the roof frame, improve the accuracy of the position of the welding fixing bolts, ensure that the bolts are aligned with the air-conditioning installation holes after being welded and fixed, and improve the quality of air-conditioning assembly.

[0005] In order to achieve the above-mentioned purpose, the technical solution of the utility model is: a welding positioning device for fixing bolts of a roof-mounted air conditioner in a passenger car, comprising a positioning frame, the positioning frame comprising support beam 1, support beam 2 and support beam 3 arranged at intervals, positioning component 1 being arranged at intervals between support beam 1 and support beam 2, and positioning component 2 being arranged at intervals between support beam 2 and support beam 3. The position of the welding fixing bolt is positioned by positioning component 1 and positioning component 2.

[0006] The first positioning assembly and the second positioning assembly both include a fixing plate and two connecting beams, a plurality of the fixing plates are arranged between the two connecting beams, and sleeves are vertically arranged on the fixing plates. The sleeves on the fixing plates are used to locate the position of the bolts for welding and fixation, and the verticality and parallelism of the bolts welded and fixed on the roof frame can be ensured.

[0007] The gap between the two connecting beams of the positioning assembly 2 constitutes an air outlet positioning hole; two cross beams are also arranged between the support beam 2 and the support beam 3, and the gap between the two cross beams constitutes an air return positioning hole. The accuracy of the relative positions of the air outlet and the air return port of the air conditioner on the roof frame can be checked through the air outlet positioning hole and the air return positioning hole.

[0008] Furthermore, the support beam 1, support beam 2 and support beam 3 are all in arc-shaped structure, so that the positioning device can be attached to the roof when in use, thereby reducing the error caused by the curvature change of the roof frame.

[0009] Furthermore, the number of fixing plates between the two connecting beams of the positioning assembly 1 is three, and the number of fixing plates between the two connecting beams of the positioning assembly 2 is two; and reinforcing plates 1 are provided at the connections between the connecting beams and the supporting beams 1, 2 and 3. The reinforcing plates 1 play a role in stabilizing and reinforcing the connections between the connecting beams and the supporting beams 1, 2 and 3.

[0010] Furthermore, a mounting hole is formed on the fixing plate, and the sleeve is welded and fixed at the mounting hole, and the lower end of the sleeve extends to the bottom of the fixing plate, so as to achieve the purpose of fixing the sleeve on the fixing plate through the mounting hole.

[0011] Furthermore, an intermediate beam is arranged between the two cross beams, and a reinforcing plate 2 is arranged at the connection between the cross beam and the second support beam and the third support beam. The reinforcing plate 2 plays a role in stabilizing and reinforcing the connection between the cross beam and the second support beam and the third support beam.

[0012] Through the above technical solution, the beneficial effects of the utility model are:

[0013] The utility model has a simple structure and good use effect, can effectively locate the position where the bolts are fixed to the roof frame, improves the accuracy of welding and fixing the bolts, can ensure the verticality and parallelism of the bolts welded and fixed on the roof frame, so as to ensure that the verticality, parallelism and accuracy of the bolts after welding and fixing meet the requirements of assembling the air conditioner, so that the bolts correspond to the air conditioner mounting holes after welding and fixing; because the bolts are welded and fixed on the top of the roof frame, the length of the bolts is short, which reduces the risk of the bolts being broken by stress during the operation of the bus, and improves the quality and efficiency of vehicle air conditioning assembly.

[0014] The sleeves on the fixing plates of the first and second positioning components of the utility model play a role in positioning the welding fixing bolts. After the bolts are sleeved in the sleeves and then welded, the fixing bolts are achieved to ensure the verticality and parallelism of the bolts welded and fixed on the roof frame.

[0015] The air outlet positioning hole and the air return positioning hole of the utility model can check the accuracy of the relative positions of the air outlet and the air return port of the air conditioner on the roof frame, and can also verify the accuracy of the welding position of the air conditioner water retaining edge of the roof skin. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the structure of a welding and positioning device for fixing bolts of a passenger car roof air conditioner. Figure 1 ;

[0017] Figure 2 This is a schematic diagram of the structure of a welding and positioning device for fixing bolts of a passenger car roof air conditioner. Figure 2 ;

[0018] Figure 3 This is a schematic diagram of the structure of a welding and positioning device for fixing bolts of a passenger car roof air conditioner. Figure 3 ;

[0019] Figure 4 It is a structural schematic diagram of the fixing plate and the sleeve of the utility model.

[0020] The numbers in the accompanying drawings are: 1 is support beam one, 2 is support beam two, 3 is support beam three, 4 is connecting beam, 5 is fixing plate, 6 is sleeve, 7 is air outlet positioning hole, 8 is reinforcing plate one, 9 is cross beam, 10 is middle beam, 11 is return air positioning hole, and 12 is reinforcing plate two. DETAILED DESCRIPTION

[0021] The utility model is further described below in conjunction with the accompanying drawings and specific embodiments:

[0022] like Figure 1 to Figure 4 As shown, a welding and positioning device for fixing bolts of a passenger car roof air conditioner comprises a positioning frame, wherein the positioning frame comprises a support beam 1, a support beam 2, and a support beam 3 arranged at intervals, wherein a positioning component 1 is arranged at intervals between the support beam 1 and the support beam 2, and a positioning component 2 is arranged at intervals between the support beam 2 and the support beam 3. In this embodiment, the number of positioning components 1 between the support beam 1 and the support beam 2 is two, and the two positioning components 1 are respectively located at the ends of the support beam 1 and the support beam 2; the number of positioning components between the support beam 2 and the support beam 3 is also two, and the two positioning components 1 are respectively located at the ends of the support beam 2 and the support beam 3.

[0023] Both the positioning assembly 1 and the positioning assembly 2 include a fixing plate 5 and two connecting beams 4, a plurality of the fixing plates 5 are arranged at intervals between the two connecting beams 4, and a sleeve 6 is vertically arranged on the fixing plate 5. In this embodiment, the two ends of the connecting beam 4 of the positioning assembly 1 are respectively connected to the support beam 1 1 and the support beam 2 2, and the two ends of the connecting beam 4 of the positioning assembly 2 are respectively connected to the support beam 2 2 and the support beam 3 3; the position of the fixing plate 5 between the two connecting beams 4 is determined according to the position of the air conditioner installation hole, and the sleeve 6 plays a role in positioning the welding fixing bolts. When welding the fixing bolts, put the bolts into the sleeve 6, and make the hexagonal bolt base of the bolts stick to the roof, and then weld the hexagonal bolt base to the embedded steel plate on the roof frame.

[0024] The gap between the two connecting beams 4 of the positioning component 2 constitutes an air outlet positioning hole 7; two cross beams 9 are also arranged between the support beam 2 2 and the support beam 3 3, and the gap between the two cross beams 9 constitutes a return air positioning hole 11. In this embodiment, the two connecting beams 4 of the positioning component 2, the support beam 2 2 and the support beam 3 3 constitute the air outlet positioning hole 7, and the two cross beams 9, the support beam 2 2 and the support beam 3 3 constitute the return air positioning hole 11. The air outlet positioning hole 7 and the return air positioning hole 11 test the accuracy of the relative positions of the air-conditioning outlet and the return air outlet on the roof frame, and verify the accuracy of the welding position of the air-conditioning water retaining edge of the roof skin.

[0025] The support beam 1 1, support beam 2 2 and support beam 3 3 are all in arc shape. In this embodiment, the purpose of the support beam 1 1, support beam 2 2 and support beam 3 3 being in arc shape is to facilitate the positioning device to be close to the roof when in use, and reduce the error caused by the change of curvature.

[0026] There are three fixing plates 5 between the two connecting beams 4 of the positioning assembly 1, and there are two fixing plates 5 between the two connecting beams 4 of the positioning assembly 2; reinforcing plates 1 8 are provided at the connection between the connecting beam 4 and the supporting beam 1 1, the supporting beam 2 2 and the supporting beam 3 3. In this embodiment, the reinforcing plates 1 8 are welded and fixed to the connecting beam 4, the supporting beam 1 1, the supporting beam 2 2 and the supporting beam 3 3, and the reinforcing plates 1 8 play a role in stabilizing and reinforcing the connection between the connecting beam 4 and the supporting beam 1 1, the supporting beam 2 2 and the supporting beam 3 3.

[0027] The fixing plate 5 is provided with a mounting hole, and the sleeve 6 is welded and fixed at the mounting hole, and the lower end of the sleeve 6 extends to the bottom of the fixing plate 5. In this embodiment, the inner size of the sleeve 6 is determined according to the specifications of the roof welding bolts, the size of the air conditioner mounting hole and the welding error, so as to ensure that the verticality, parallelism and accuracy of the bolts after welding and fixing meet the requirements of assembling the air conditioner.

[0028] An intermediate beam 10 is arranged between the two cross beams 9, and a reinforcing plate 2 12 is provided at the connection between the cross beam 9 and the second support beam 2 and the third support beam 3. In this embodiment, there are two intermediate beams 10, and both ends of the intermediate beam 10 are respectively connected to the two cross beams 9, and the reinforcing plate 2 12 is welded and fixed to the cross beam 9, the second support beam 2 and the third support beam 3. The reinforcing plate 2 12 plays a role in stabilizing and reinforcing the connection between the cross beam 9 and the second support beam 2 and the third support beam 3, thereby reducing deformation caused by use.

[0029] When the utility model is used, firstly, holes are opened at corresponding positions of the roof skin according to the sizes of the air-conditioning outlet and return air outlet arranged on the roof frame, and water retaining edges are welded at the air-conditioning outlet and return air outlet according to technical requirements; then the positioning device is placed on the roof skin, and the air-conditioning outlet, return air outlet and water retaining edge are made to just fall within the range of the air outlet positioning hole 7 and the return air positioning hole 11, and the margin is adjusted. At this time, the air outlet positioning hole 7 and the return air positioning hole 11 test the accuracy of the relative positions of the air-conditioning outlet and return air outlet on the roof frame, and verify the accuracy of the welding position of the air-conditioning water retaining edge of the roof skin.

[0030] At the same time, after the positioning device is placed on the roof skin, the sleeve 6 on the fixing plate 5 of the positioning component 1 and the positioning component 2 corresponds to the position of the roof frame, that is, the position that can be fixed by bolt welding, and then the bolt to be welded is placed in the sleeve 6, and the hexagonal bolt base of the bolt is attached to the roof, and then the hexagonal bolt base is welded to the embedded steel plate on the roof frame. During welding, it is necessary to ensure that the hexagonal bolt and the embedded steel plate of the roof frame are actually welded, and after the bolt is welded and fixed, the bolt is located in the middle part of the sleeve 6 as much as possible. After all the bolts are welded and fixed, the positioning device is removed, and the welded bolts are checked, and the virtual welding and leaking welding parts are welded again.

[0031] The embodiments described above are only preferred embodiments of the utility model and do not limit the scope of implementation of the utility model. Therefore, all equivalent changes or modifications made according to the technical solutions described in the patent scope of the utility model should be included in the scope of the patent application of the utility model.

Claims

1. A welding and positioning device for fixing bolts of a passenger car roof air conditioner, characterized in that: The positioning frame comprises a positioning frame, wherein the positioning frame comprises a support beam 1 (1), a support beam 2 (2) and a support beam 3 (3) which are arranged at intervals, a positioning component 1 is arranged at intervals between the support beam 1 (1) and the support beam 2 (2), and a positioning component 2 is arranged at intervals between the support beam 2 (2) and the support beam 3 (3); The first positioning component and the second positioning component both comprise a fixing plate (5) and two connecting beams (4), a plurality of the fixing plates (5) are arranged at intervals between the two connecting beams (4), and a sleeve (6) is vertically arranged on the fixing plate (5); The gap between the two connecting beams (4) of the second positioning assembly forms an air outlet positioning hole (7); two cross beams (9) are also provided between the second support beam (2) and the third support beam (3), and the gap between the two cross beams (9) forms an air return positioning hole (11).

2. A welding and positioning device for fixing bolts of a passenger car roof air conditioner according to claim 1, characterized in that: The support beam one (1), the support beam two (2) and the support beam three (3) are all in an arc-shaped structure.

3. A welding and positioning device for fixing bolts of a passenger car roof air conditioner according to claim 1, characterized in that: The number of the fixing plates (5) between the two connecting beams (4) of the positioning component one is three, and the number of the fixing plates (5) between the two connecting beams (4) of the positioning component two is two; and the connection points between the connecting beam (4) and the supporting beam one (1), the supporting beam two (2) and the supporting beam three (3) are all provided with reinforcing plates one (8).

4. A welding and positioning device for fixing bolts of a passenger car roof air conditioner according to claim 3, characterized in that: The fixing plate (5) is provided with a mounting hole, and the sleeve (6) is welded and fixed at the mounting hole, with the lower end extending to below the fixing plate (5).

5. The welding and positioning device for fixing bolts of a passenger car roof air conditioner according to claim 1, characterized in that: An intermediate beam (10) is arranged between the two cross beams (9) at intervals, and a reinforcing plate 2 (12) is provided at the connection between the cross beam (9) and the second support beam (2) and the third support beam (3).

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