Passenger car interior trim support positioning tool
By designing a positioning fixture for bus interior brackets with multiple positioning modules, the problem of low welding precision of bus interior brackets was solved, achieving precise positioning and welding, and improving production efficiency and assembly quality.
Patent Information
- Application Number
- CN202520557960.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-27
- Publication Date
- 2026-02-13
- Estimated Expiration
- 2035-03-27
AI Technical Summary
The low welding precision of existing bus interior brackets results in poor dimensional accuracy of the welded assembly, low production efficiency, and a lack of precise measuring tools, requiring frequent adjustments.
A bus interior bracket positioning fixture was designed, which includes multiple positioning modules and brackets. The fixture body is made of square aluminum profiles, and multiple positioning modules are used to achieve precise positioning and welding of irregular components, thereby improving assembly consistency.
It enables precise positioning and welding of bus interior brackets, reducing subsequent adjustment work, improving production efficiency and assembly quality, and reducing additional costs and time losses.
Smart Images

Figure CN223903274U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to bus manufacturing tooling technical field especially relates to a bus interior trim bracket positioning jig. BACKGROUND
[0002] In the process of bus manufacturing, bus interior trim bracket is produced into assembly by different tooling, then is combined and welded on numerical control servo assembling table, at present, the manufacturing precision of welding fixture used by most domestic bus factories is low, mostly adopts rely on block type, and is equipped with a small amount of manual clamping device, and bus interior trim bracket is widely distributed, and there is no suitable measuring tool to accurately measure position size, which leads to poor assembly size precision after welding, large adjustment workload, low production efficiency and other problems.
[0003] The overall modeling structure characteristics of the existing bus interior trim bracket mainly lie in the irregular component one and the irregular component two at the front end of the jig body, the left bracket and the right bracket at the left and right sides of the jig body, the L-shaped bracket one and the L-shaped bracket two at the left and right sides of the tail end of the jig body, and the middle support part at the center of the tail end of the jig body (refer to Figure 2 and Figure 3 ), which cannot accurately measure the position size of the bus interior trim bracket during welding, so frequent adjustment is needed after the overall welding of the bus interior trim bracket is completed, which affects the production efficiency. UTILITY MODEL CONTENTS
[0004] The utility model provides a bus interior trim bracket positioning jig, aims at solving the deficiencies existing in the above background technology.
[0005] In order to solve the above technical problem, the utility model adopts the following technical scheme:
[0006] A bus interior trim bracket positioning jig, including jig body, the jig body includes support one, support two and support three, support one has two, and two support one is parallel to each other, support two is perpendicular to support one, support two has four, four support two is arranged in support one interval, support three is connected to the middle part of the front end of support one, and support three is in the shape structure of opening towards support one;
[0007] The front end of support three is equipped with first positioning module and second positioning module, and the left and right sides of the front end of support one are respectively equipped with one third positioning module, and the left and right sides of the rear end of support one are respectively equipped with one fourth positioning module.
[0008] Further, the first positioning module comprises two first pressing blocks fixed to the top of the front end of the bracket three and two second pressing blocks fixed to the bottom of the front end of the bracket three, each first pressing block is provided with a first connecting block, the first connecting blocks are two L-shaped blocks staggered and connected at the bottom; when the passenger car interior bracket is positioned on the top of the jig body, the top of the irregular component one in the passenger car interior bracket is positioned on the top of the first connecting block, and the side wall is positioned on the second pressing block.
[0009] Further, the second positioning module comprises two symmetrically arranged second connecting blocks, each second connecting block comprises a T-shaped frame, the side wall of the T-shaped frame is connected with the bottom of the front end of the bracket three, and an adjusting pad is connected to the bottom and the side wall of the T-shaped frame respectively, and the two adjusting pads are perpendicular to each other.
[0010] Further, the third positioning module comprises two symmetrically arranged first supporting seats, and the two first supporting seats are arranged on the left and right sides of the front end of the bracket one; when the passenger car interior bracket is positioned on the top of the jig body, the left bracket and the right bracket in the passenger car interior bracket are positioned on the top of the first supporting seat.
[0011] Further, the fourth positioning module comprises a first frame body and a second frame body stacked, the first frame body is installed on the side wall of the bracket two and perpendicular to the bracket two, the second frame body is arranged between the bracket one and the first frame body and perpendicular to the first frame body; when the passenger car interior bracket is positioned on the top of the jig body, the L-shaped bracket one and the L-shaped bracket two in the passenger car interior bracket are positioned on the top of the second frame body.
[0012] Further, the central part of the rear end of the bracket one is further provided with a fifth positioning module, the fifth positioning module comprises two symmetrically arranged third connecting blocks, each third connecting block comprises two third pressing blocks arranged at intervals, and a second supporting seat is connected to the top of each third pressing block; when the passenger car interior bracket is positioned on the top of the jig body, the middle support part in the passenger car interior bracket is positioned on the top of the second supporting seat.
[0013] Further, the bottom of the jig body is fixedly connected with a plurality of handles.
[0014] Further, the jig body is made of square aluminum profile.
[0015] From the description of the structure of the utility model, the utility model has the following advantages:
[0016] By machining parts on the jig body of the utility model, positioning and welding of the passenger train interior support can be realized, positioning and welding of several component key dimensions on the train body framework can be realized, precise positioning and welding operation of various complex and irregular steel components can be effectively realized, assembly consistency of the interior part is achieved, butt joint defects are eliminated, frequent disassembly and adjustment in the subsequent process is avoided, production efficiency and assembly quality are improved, and then additional cost and time loss caused by frequent disassembly and adjustment in the subsequent process are reduced, meanwhile, the whole production process is more smooth and efficient, and the assembly quality of the final product is greatly enhanced. BRIEF DESCRIPTION OF DRAWINGS
[0017] Figure 1 It is a structure schematic view of the utility model.
[0018] Figure 2 It is a structure schematic view of the existing passenger train interior support.
[0019] Figure 3 It is a structure schematic view of the bottom of the existing passenger train interior support.
[0020] Figure 4 It is a structure schematic view of the utility model in the working state.
[0021] Figure 5 It is a structure schematic view of the bottom of the utility model in the working state.
[0022] In the drawing: 1-irregular component one; 2-irregular component two; 3-left support; 4-right support; 5-L-shaped support one; 6-L-shaped support two; 7-intermediate support part; 10-support one; 11-third positioning module; 111-first supporting seat; 12-fourth positioning module; 121-first frame body; 122-second frame body; 13-fifth positioning module; 131-third connecting block; 1311-third pressing block; 1312-second supporting seat; 20-support two; 30-support three; 31-first positioning module; 311-first pressing block; 3111-first connecting block; 312-second pressing block; 32-second positioning module; 321-second connecting block; 3211-T-shaped frame; 3212-adjusting gasket; 40-handle. DETAILED DESCRIPTION
[0023] The specific implementation of the utility model will be described below with reference to the drawings. In order to fully understand the utility model, many details are described below, but the utility model can be realized without these details for those skilled in the art. For well-known components, methods and processes, the following will not be described in detail.
[0024] Reference Figures 1 to 5The utility model provides a passenger train interior support positioning jig, including jig body, jig body includes support one 10, support two 20 and support three 30, support one 10 has two, and two support one 10 parallel with each other, support two 20 is perpendicular to support one 10, support two 20 has four, four support two 20 are arranged at the interval between two support one 10, support three 30 is connected in the middle of the front end of support one 10, and support three 30 is the shape structure of the open towards support one 10. The front end of support three 30 is equipped with the first positioning module 31 for positioning the irregular component one 1 in the passenger train interior support, the second positioning module 32 for positioning the irregular component two 2 in the passenger train interior support, and the left and right sides of the front end of support one 10 are respectively equipped with a third positioning module 11 for positioning the left support 3 and the right support 4 in the passenger train interior support, and the left and right sides of the rear end of support one 10 are respectively equipped with a fourth positioning module 12 for positioning the L-shaped support one 5 and the L-shaped support two 6 in the passenger train interior support.
[0025] Referring to Figure 1 and Figure 2 , the first positioning module 31 includes two first pressing blocks 311 fixed to the top of the front end of support three 30, and two second pressing blocks 312 fixed to the bottom of the front end of support three 30, a first connecting block 3111 is arranged on each first pressing block 311, the first connecting block 3111 is an L-shaped block staggered and connected at the bottom; when the passenger train interior support is positioned on the top of the jig body, the top of the irregular component one 1 is positioned on the top of the first connecting block 3111, and the side wall of the irregular component one 1 is positioned on the second pressing block 312. The first pressing block 311, the second pressing block 312 and the first connecting block 3111 respectively position the front and rear of the irregular steel component one 1, and improve assembly accuracy.
[0026] Referring to Figure 1 and Figure 3 , the bottom of the front end of support three 30 is further fixedly connected with the second positioning module 32 for positioning the irregular component two 2 in the passenger train interior support, and the second positioning module 32 includes two symmetrically arranged second connecting blocks 321, each second connecting block 321 includes a T-shaped frame 3211, the side wall of the T-shaped frame 3211 is connected with the bottom of the front end of support three 30, and an adjusting gasket 3212 is further connected to the bottom and the side wall of the T-shaped frame 3211, and the two adjusting gaskets 3212 are perpendicular to each other. The irregular steel component two 2 is limited in the Z direction and the Y direction by the two adjusting gaskets 3212, and the positioning of the irregular steel component two 2 is completed by the operator in cooperation with welding.
[0027] Referring to Figure 1 and Figure 3, the left and right sides of the front end of the bracket one 10 are respectively provided with a third positioning module 11 for positioning the left bracket 3 and the right bracket 4 of the passenger car interior support bracket, the third positioning module 11 comprises two symmetrically arranged first supporting seats 111, and the two first supporting seats 111 are arranged on the left and right sides of the front end of the bracket one 10; when the passenger car interior support bracket is positioned on the top of the jig body, the left bracket 3 and the right bracket 4 are positioned on the top of the first supporting seat 111. The first supporting seat 111 is provided with a profiling shaft pin, the waist round holes on the left bracket 3 and the right bracket 4 are attached to the shaft pin of the first supporting seat 111, and the lower surface of the passenger car interior support bracket is attached to the upper surface of the jig body, so that XYZ limiting is realized, and then welding is completed by the operator.
[0028] With reference to Figure 1 and Figure 4 , the middle rear sections of the left and right sides of the bracket two 20 are respectively provided with a fourth positioning module 12 for positioning the L-shaped bracket one 5 and the L-shaped bracket two 6 of the passenger car interior support bracket, the L-shaped bracket one 5 and the L-shaped bracket two 6 are symmetrical structures, the fourth positioning module 12 comprises a first frame body 121 and a second frame body 122 arranged in layers, the first frame body 121 is installed on the side wall of the bracket two 20 and is perpendicular to the bracket two 20, and the second frame body 122 is arranged between the bracket one 10 and the first frame body 121 and is perpendicular to the first frame body 121; when the passenger car interior support bracket is positioned on the top of the jig body, the L-shaped bracket one 5 and the L-shaped bracket two 6 are positioned on the top of the second frame body 122. There are locking holes machined on the second frame body 122, four round holes on the L-shaped bracket one 5 and the L-shaped bracket two 6 are respectively butted against the round holes on the second frame body 122, and then welding is completed.
[0029] With reference to Figure 1 , Figure 4 and Figure 5 , the central part of the rear end of the bracket one 10 is also provided with a fifth positioning module 13 for positioning the middle support part 7 of the passenger car interior support bracket, the fifth positioning module 13 comprises two symmetrically arranged third connecting blocks 131, each third connecting block 131 comprises two third pressing blocks 1311 arranged at intervals, and a second supporting seat 1312 is connected to the top of each third pressing block 1311; when the passenger car interior support bracket is positioned on the top of the jig body, the middle support part 7 is positioned on the top of the second supporting seat 1312.
[0030] With reference to Figure 1 , the bottom of the jig body is fixedly connected with a plurality of handles 40, and the jig body is made of square aluminum profile. In use, the operators cooperate with each other to first lock and fix the jig body on the passenger car interior top bracket, and then complete the welding of the passenger car interior support bracket by welding through the positioning points on the jig body of the utility model.
[0031] The above merely is the specific implementation manner of the present application, but the design concept of the present application is not limited to this, and any non-essential change of the present application by using the concept should belong to the act of infringing the protection scope of the present application.
Claims
1. A positioning fixture for a passenger car interior support bracket, characterized by: The jig body comprises a support one, a support two and a support three, the support one has two parallel supports, the support two is perpendicular to the support one, the support two has four supports arranged between the support one, the support three is connected to the middle of the front end of the support one, and the support three is in a shape of a U-shaped structure with an opening facing the support one. The front end of the support three is provided with a first positioning module and a second positioning module, the left and right sides of the front end of the support one are respectively provided with a third positioning module, and the left and right sides of the rear end of the support one are respectively provided with a fourth positioning module.
2. The passenger car interior bracket positioning fixture of claim 1, wherein: The first positioning module comprises two first pressing blocks fixed to the top of the front end of the support three and two second pressing blocks fixed to the bottom of the front end of the support three, a first connecting block is arranged on each first pressing block, the first connecting block is an L-shaped block staggered and connected at the bottom, when the interior support of the passenger car is positioned on the top of the jig body, the top of an irregular component one in the interior support of the passenger car is positioned on the top of the first connecting block, and the side wall is positioned on the second pressing block.
3. The passenger car interior bracket positioning fixture of claim 1, wherein: The second positioning module comprises two symmetrically arranged second connecting blocks, each second connecting block comprises a T-shaped frame, the side wall of the T-shaped frame is connected to the bottom of the front end of the support three, and an adjusting pad is connected to the bottom and the side wall of the T-shaped frame, respectively, and the two adjusting pads are perpendicular to each other.
4. The passenger car interior bracket positioning fixture of claim 1, wherein: The third positioning module comprises two symmetrically arranged first supporting seats, and the two first supporting seats are arranged on the left and right sides of the front end of the support one, when the interior support of the passenger car is positioned on the top of the jig body, the left support and the right support in the interior support of the passenger car are positioned on the top of the first supporting seat.
5. The passenger car interior bracket positioning fixture of claim 1, wherein: The fourth positioning module comprises a first frame body and a second frame body arranged in layers, the first frame body is mounted on the side wall of the support two and is perpendicular to the support two, the second frame body is arranged between the support one and the first frame body and is perpendicular to the first frame body, when the interior support of the passenger car is positioned on the top of the jig body, the first L-shaped support and the second L-shaped support in the interior support of the passenger car are positioned on the top of the second frame body.
6. The passenger car interior bracket positioning fixture of claim 1, wherein: The central part of the rear end of the support one is also provided with a fifth positioning module, the fifth positioning module comprises two symmetrically arranged third connecting blocks, each third connecting block comprises two third pressing blocks arranged at intervals, and a second supporting seat is connected to the top of each third pressing block, when the interior support of the passenger car is positioned on the top of the jig body, the middle support part in the interior support of the passenger car is positioned on the top of the second supporting seat.
7. The passenger car interior trim support fixture of claim 1, wherein: The bottom of the jig body is fixedly connected with a plurality of handles.
8. The passenger car interior bracket locator fixture of claim 1, wherein: The jig body is made of square aluminum profile.