A post-processing support horizontal detection tool
By designing a post-processing bracket level inspection fixture, and using a combination of the fixture body and bolts, the problem of uncertainty in manual visual inspection was solved, enabling accurate inspection of the bracket welding level and ensuring product quality.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GUANGXI YUCHAI MASCH CO LTD
- Filing Date
- 2025-04-30
- Publication Date
- 2026-06-12
AI Technical Summary
In the existing technology, the welding level detection of the post-processing bracket relies on manual visual inspection, which has uncertainty in identification and may lead to the risk of the post-processing cover plate not being installed horizontally.
Design a post-processing bracket horizontal inspection fixture, including the inspection fixture body and bolts. By symmetrically setting through holes and bolts on the inspection fixture body, ensure that the bolts are aligned with the bracket screw holes to achieve automated inspection.
It enables accurate detection of the welding level of the post-processing bracket, ensuring product quality, and the device has a simple structure and is easy to use.
Smart Images

Figure CN224353825U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of engine testing technology, and more specifically, to a tooling for testing the horizontal level of an aftertreatment bracket. Background Technology
[0002] The aftertreatment system is a crucial component of a vehicle's exhaust system, supplied by the engine manufacturer to the car manufacturer, who then installs it onto the vehicle's chassis. Currently, the aftertreatment brackets are welded by the supplier, and engine manufacturers rely heavily on manual visual inspection to ensure the brackets are welded horizontally. However, visual inspection is too unreliable and may fail to detect instances where the aftertreatment brackets are not horizontally aligned with the car manufacturer's installation panel. Therefore, a tooling system for inspecting the level of the aftertreatment brackets is urgently needed to ensure product quality. Utility Model Content
[0003] To overcome the shortcomings of the existing technology, this utility model proposes a post-processing bracket level detection fixture, which can accurately detect whether the post-processing bracket is welded horizontally to ensure product quality. Moreover, this device has a simple structure and is easy to use.
[0004] To achieve this objective, the present invention adopts the following technical solution:
[0005] This utility model provides a post-processing bracket horizontal detection fixture, including a detection fixture body and bolts. The detection fixture body has two rows of through holes symmetrically arranged on the left and right sides, and a bolt is provided inside each through hole.
[0006] In a preferred embodiment of this invention, each column of through holes includes three through holes arranged at equal intervals.
[0007] In a preferred embodiment of this invention, the testing fixture body is a flat plate structure.
[0008] In a preferred embodiment of this invention, a raised edge is provided at the edge of the detection fixture body.
[0009] The beneficial effects of this utility model are as follows:
[0010] The present invention proposes a post-processing bracket level detection fixture, which can accurately detect whether the post-processing bracket is welded horizontally to ensure product quality. Moreover, the device has a simple structure and is easy to use. Attached Figure Description
[0011] Figure 1 This is a schematic diagram of the structure of a post-processing bracket horizontal detection fixture provided in a specific embodiment of this utility model;
[0012] Figure 2 yes Figure 1 A top view of the main body of the inspection fixture.
[0013] In the picture:
[0014] 1. Inspection fixture body; 2. Through hole; 3. Bolt; 4. Protruding edge. Detailed Implementation
[0015] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.
[0016] like Figure 1-2 As shown, this embodiment provides a horizontal inspection fixture for a post-processing support, including a fixture body 1 and bolts 3. The fixture body 1 has two rows of through holes 2 symmetrically arranged on its left and right sides, and each through hole 2 has a bolt 3 installed inside it. In this embodiment, the fixture body 1 is preferably a rectangular plate, but it can also be designed into other shapes as needed. The fixture body 1 is placed on the post-processing support during use. The size of the through holes 2 should match the size of the bolts 3 to ensure that the bolts 3 always coincide with the central axis of the through holes 2 during tightening, preventing misalignment and ensuring the accuracy of the inspection results. The bottom end of the bolts 3 is threaded and can mate with the threaded holes on the post-processing support.
[0017] Specifically, each column of through holes 2 includes three through holes 2 arranged at equal intervals. In this embodiment, the number of post-processing brackets is equal to the number of through holes 2 and corresponds one-to-one. The size of each through hole 2 is the same, and the distance between the through hole 2 located in the third row and the bottom edge of the test fixture body 1 is 62.6 mm.
[0018] Specifically, the testing fixture body 1 is a flat plate structure. In this embodiment, the top and bottom surfaces of the flat plate are both planar and parallel to each other.
[0019] Specifically, a raised edge 4 is provided at the edge of the inspection fixture body 1. In this embodiment, the raised edge 4 facilitates the handling of the device by the operator.
[0020] Working principle: After the six mounting brackets are welded onto the aftertreatment unit, the engine manufacturer places the aftertreatment unit upright on a level surface. The employee takes the testing fixture body 1 and uses six bolts 3 to pass through the six through holes 2 on the testing fixture body 1 and screw them into the screw holes on the aftertreatment brackets. If the six bolts 3 can be tightened smoothly, it proves that the six brackets of the aftertreatment unit are level as a whole. If the six bolts 3 cannot be tightened completely, it proves that the position of the six brackets of the aftertreatment unit is unqualified, thus realizing the function of testing the levelness of the aftertreatment brackets.
[0021] This utility model has been described through preferred embodiments. Those skilled in the art will understand that various changes or equivalent substitutions can be made to these features and embodiments without departing from the spirit and scope of this utility model. This utility model is not limited to the specific embodiments disclosed herein; other embodiments falling within the scope of the claims of this application are all within the protection scope of this utility model.
Claims
1. A post-processing support horizontal detection fixture, characterized in that: The tooling includes a testing fixture body (1) and bolts (3). The testing fixture body (1) has two rows of through holes (2) symmetrically arranged on the left and right sides, and each through hole (2) has a bolt (3) inside. Each column of through holes (2) includes three through holes (2) arranged at equal intervals; The main body (1) of the testing fixture is a flat plate structure; The edge of the detection fixture body (1) is provided with a raised edge (4); The inspection fixture body (1) is a rectangular plate, and each through hole (2) has the same size. The distance between the through hole (2) in the third row and the bottom edge of the inspection fixture body (1) is 62.6 mm.