Template special for installing and welding car roof framework

By designing a special template for welding the roof frame of a bus, the problem of uneven flatness of the welded joints was solved, the welding quality and structural strength of the frame were improved, and the safety and service life of the frame were ensured.

CN224254604UActive Publication Date: 2026-05-19QINGDAO RAILWAY SLEEPER BUS MFG PLANT CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
QINGDAO RAILWAY SLEEPER BUS MFG PLANT CO LTD
Filing Date
2025-06-19
Publication Date
2026-05-19

AI Technical Summary

Technical Problem

During the welding process of bus frames, differences in the flatness of welded joints or components can affect the performance, assembly, and service life of the frame. Existing equipment is limited, resulting in poor welding quality.

Method used

A special template for welding the roof frame of a bus is designed, comprising a template body, clamping components, fixing ears, inner and outer pads, and stiffening plates. Through the cooperation of these components, the flatness and contour of the side beams and longitudinal beams are ensured, thereby improving the accuracy and consistency of welding.

Benefits of technology

The template design improved the flatness and precision of the bus roof frame welding, ensuring welding quality and operational efficiency, and enhancing the structural strength and safety of the frame.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a special template for assembling and welding a roof framework of a passenger car, which belongs to the field of frame welding and comprises a template body, a first flat gasket is mounted at the upper top end of the template body through a cylindrical head socket head cap screw, a compression component is arranged on one side of the template body, and a second flat gasket is mounted at the other side of the template body. The pressing assembly comprises an edge beam pressing device and a pressing device screw combination, the edge beam pressing device is installed at the upper top end of the first flat gasket, the pressing device screw combination is installed on the outer wall of the edge beam pressing device, and through cooperative use of all the devices, in the machining process, the edge beam pressing device is used for pressing the edge, so that the machining efficiency is improved. The profile tolerance between the camber beam and the edge beam is guaranteed so as to achieve the effect of improving the flatness, meanwhile, the flatness between the longitudinal beam and the camber beam is guaranteed through the inner base plate and the outer base plate, the accuracy of the coach roof during machining and welding is further improved, the welding quality is improved, and the consistency between formworks can be improved through the arrangement of the multiple fixing plates.
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Description

Technical Field

[0001] This utility model relates to the field of vehicle frame welding technology, specifically a special template for welding the roof frame of a bus. Background Technology

[0002] Bus frame welding refers to the process of permanently connecting the metal components of the bus frame (such as longitudinal beams, crossbeams, and columns) through atomic bonding and diffusion by heating or pressurizing, or both. This is a key process in bus frame manufacturing, directly affecting the structural strength, safety, and durability of the frame.

[0003] Currently, in the welding process of bus frames, due to the relatively limited processing equipment and the large size of the bus frame, weld joints or components are prone to flatness differences (i.e., the flatness of the welded surface or structure deviates from the design requirements). This can have various impacts on the performance, assembly, and service life of the frame.

[0004] Therefore, this utility model provides a special template for welding the roof frame of a bus to solve the above problems. Summary of the Invention

[0005] (a) Technical problems to be solved

[0006] This utility model provides a special template for welding the roof frame of a bus, which aims to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] A special template for welding the roof frame of a bus includes a template body, a first flat washer is installed on the top of the template body by means of a cylindrical head hexagon screw, and a clamping component is provided on one side of the template body.

[0009] The clamping assembly includes a side beam clamp and a clamping screw assembly. The side beam clamp is installed on the upper top of the first flat pad, and the clamping screw assembly is installed on the outer wall of the side beam clamp.

[0010] As a preferred technical solution of this application, the clamping screw assembly includes a clamping plate, a pin is inserted into the upper top end of the clamping plate, a pin is installed at the upper top end of the clamping plate, a second flat washer is sleeved on the outer wall of the pin, and a cotter pin is inserted into the outer wall of the pin.

[0011] As a preferred technical solution of this application, the outer side wall of the template body is equipped with fixing ears, and the fixing ears are symmetrically arranged at the center of the template body.

[0012] As a preferred technical solution of this application, the inner wall of the template body is equipped with an outer washer and an inner washer by countersunk screws, the outer wall of the countersunk screws is equipped with a nut, and the outer wall of the nut is fixedly sleeved with a spring washer and a third flat washer.

[0013] As a preferred technical solution of this application, the outer wall of the template body is equipped with template stiffeners, and the number of template stiffeners is several.

[0014] As a preferred technical solution of this application, the outer wall of the template body is fixedly connected with a fixing plate, and there are multiple fixing plates, which are symmetrically arranged at the center of the template body.

[0015] By setting up clamping components, the various parts can work together during processing. The edge clamping device presses the edge to ensure the contour between the curved beam and the edge beam, thereby improving the flatness. At the same time, the inner and outer pads ensure the flatness between the longitudinal beam and the curved beam, further improving the accuracy of the bus roof during processing and welding, and improving the welding quality. The use of multiple fixing plates can improve the consistency between the templates. Attached Figure Description

[0016] Figure 1 A schematic diagram of the overall structure of a special template for welding the roof frame of a passenger bus;

[0017] Figure 2 A top view of a special template for welding the roof frame of a passenger bus;

[0018] Figure 3 for Figure 2 A schematic diagram of the first-person view structure at point A in the middle;

[0019] Figure 4 for Figure 2 A magnified structural diagram at point B in the middle.

[0020] In the picture:

[0021] 1. Template body; 2. Socket head screw; 3. First flat washer; 4. Side beam clamp; 5. Clamp clamp plate; 6. Insert column; 7. Pin; 8. Second flat washer; 9. Cotter pin; 10. Fixing lug; 11. Countersunk screw; 12. Outer washer plate; 13. Inner washer plate; 14. Nut; 15. Spring washer; 16. Third flat washer; 17. Template stiffening plate; 18. Fixing plate. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] This utility model provides a special template for welding the roof frame of a passenger bus, such as... Figures 1-4 As shown, the special template for welding the roof frame of a bus includes a template body 1. A first flat washer 3 is installed on the top of the template body 1 by means of a cylindrical head hexagon screw 2. A clamping component is provided on one side of the template body 1.

[0024] The clamping assembly includes a side beam clamp 4 and a clamping screw assembly. The side beam clamp 4 is installed on the top of the first flat pad 3, and the clamping screw assembly is installed on the outer wall of the side beam clamp 4.

[0025] The clamping screw assembly includes a clamping plate 5, a pin 6 inserted into the upper top of the clamping plate 5, a pin 7 mounted on the upper top of the clamping plate 5, a second flat washer 8 sleeved on the outer wall of the pin 7, and a cotter pin 9 inserted into the outer wall of the pin 7.

[0026] The outer side wall of the template body 1 is equipped with fixing ears 10, and the fixing ears 10 are symmetrically arranged at the center of the template body 1.

[0027] The inner wall of the template body 1 is fitted with an outer pad 12 and an inner pad 13 by countersunk screws 11. A nut 14 is fitted on the outer wall of the countersunk screws 11, and a spring washer 15 and a third flat washer 16 are fixedly sleeved on the outer wall of the nut 14.

[0028] Specifically, multiple cylindrical head hexagon socket screws 2 can quickly and stably install the first flat washer 3 onto the template body 1, ensuring the stability of the side beam clamping device 4 during operation. The first flat washer 3 also provides sufficient connectivity for the side beam clamping device 4, preventing gaps from affecting normal use during installation. The side beam clamping device 4 can stably limit the beam, ensuring the stability of the side beam during processing and welding. In conjunction with the clamping device clamping plate 5, insert 6, pin 7, second flat washer 8, and cotter pin 9 in the clamping assembly, the cooperation of each component can improve the accuracy of the side beam during processing, improve the contour of the curved beam and the side beam, and improve the processing quality. The fixing lug 10 allows for faster and more accurate installation of the equipment, improving the work efficiency of the operators. The countersunk screw 11, outer washer 12, inner washer 13, nut 14, spring washer 15, and third flat washer 16 can be used to ensure the flatness between the longitudinal beam and the curved beam during processing, further improving the processing quality and accuracy.

[0029] The outer wall of the template body 1 is equipped with template stiffeners 17, and there are several template stiffeners 17.

[0030] The outer wall of the template body 1 is fixedly connected with a fixing plate 18. There are multiple fixing plates 18, and the multiple fixing plates 18 are symmetrically arranged at the center of the template body 1.

[0031] Specifically, by using multiple fixing plates 18, the consistency between the templates can be ensured during the processing, thereby improving processing efficiency and quality.

[0032] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A special template for welding a car roof frame, comprising a template body (1), characterized in that: The top end of the template body (1) is fitted with a first flat washer (3) by a cylindrical head hexagonal screw (2), and a clamping assembly is provided on one side of the template body (1). The clamping assembly includes a side beam clamp (4) and a clamping screw assembly. The side beam clamp (4) is installed on the upper top of the first flat pad (3), and the clamping screw assembly is installed on the outer wall of the side beam clamp (4).

2. The special template for welding a car roof frame according to claim 1, characterized in that: The clamping screw assembly includes a clamping plate (5), a pin (6) is inserted into the upper top of the clamping plate (5), a pin (7) is installed at the upper top of the clamping plate (5), a second flat washer (8) is sleeved on the outer wall of the pin (7), and a cotter pin (9) is inserted into the outer wall of the pin (7).

3. The special template for welding a car roof frame according to claim 1, characterized in that: The outer side wall of the template body (1) is equipped with fixing ears (10), and the fixing ears (10) are symmetrically arranged at the center of the template body (1).

4. The special template for welding a car roof frame according to claim 3, characterized in that: The inner wall of the template body (1) is fitted with an outer pad (12) and an inner pad (13) by countersunk screws (11). A nut (14) is fitted on the outer wall of the countersunk screws (11), and a spring washer (15) and a third flat washer (16) are fixedly sleeved on the outer wall of the nut (14).

5. A special template for welding a car roof frame according to claim 1, characterized in that: The outer wall of the template body (1) is equipped with template stiffeners (17), and the number of template stiffeners (17) is several.

6. A special template for welding a car roof frame according to claim 1, characterized in that: The outer wall of the template body (1) is fixedly connected with a fixing plate (18), and there are multiple fixing plates (18), which are symmetrically arranged at the center of the template body (1).