Detection tool for hole position accuracy detection of vehicle rear shell
By designing a test tool for the positional degree of the rear shell for automotive, using the combination of the base and multiple detection pins and positioning pins, the problems of inefficiency and insufficient accuracy of the traditional detection methods are solved, and efficient and high-precision hole detection is achieved.
Patent Information
- Application Number
- CN202421655322.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-14
- Publication Date
- 2025-07-18
- Estimated Expiration
- 2034-07-14
AI Technical Summary
The traditional hole position detection method is inefficient and the measurement accuracy is difficult to guarantee, which cannot meet the high-precision needs of automotive rear shells.
A test tool for detecting hole position of a vehicle rear case is designed, including a base, a first mounting surface, a bump, a support block and a positioning pin. Through the combination of a plurality of detection pins and positioning pins, precise positioning and detection of the rear case hole is achieved.
It improves the efficiency and accuracy of hole position detection, ensures the machining accuracy of the rear shell for automotive use, and is simple in structure and convenient in operation.
Smart Images
Figure CN223122091U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of position detection equipment, in particular to a fixture for detecting the hole position degree of a vehicle rear shell. Background Technique
[0002] In the field of automobile manufacturing, the hole accuracy of the vehicle rear shell affects the final assembly accuracy of the vehicle. Therefore, after the vehicle rear shell is processed, it is necessary to detect the position degree of the holes on the rear shell to ensure the machining accuracy of the holes. The traditional hole position degree detection method mainly uses manual measurement. This method not only has low efficiency, but also it is difficult to guarantee the measurement accuracy. Therefore, a new type of hole position degree detection tool is needed to improve the detection efficiency and accuracy.
[0003] In view of this, we propose a fixture for detecting the hole position degree of a vehicle rear shell to solve the existing problems. Content of the Utility Model
[0004] The purpose of the utility model is to provide a fixture for detecting the hole position degree of a vehicle rear shell to solve the problems put forward in the above background technique.
[0005] To achieve the above purpose, the utility model provides the following technical solution: A fixture for detecting the hole position degree of a vehicle rear shell, including a base, a first mounting surface is provided on the top end surface of the base, a convex block for clamping the workpiece is provided on the first mounting surface, several first positioning pins are provided on the end surface of the convex block, support blocks are further provided on both sides of the first mounting surface, a second mounting surface is provided on the top end surface of the support block, and second positioning pins are provided on both of the second mounting surfaces on both sides.
[0006] Preferably, support surfaces are further provided on both sides of the first mounting surface, and the shapes of the support surfaces on both sides correspond to the shapes of both sides of the workpiece.
[0007] Preferably, the support surfaces on both sides are inclined surfaces provided on the support blocks, positioning holes are provided on both of the support surfaces on both sides, and pins are detachably connected in the positioning holes.
[0008] Preferably, the convex block protrudes from the top end surface of the base and corresponds to the shape of the workpiece. A second detection pin independent of the convex block is further provided on the top end surface of the base, and a first detection pin protruding from the convex block is provided on the top end surface of the convex block.
[0009] Preferably, the second mounting surface is used for clamping and installing the workpiece through the second positioning pins on the support blocks on both sides, and a gap is provided between the second mounting surface and the first mounting surface.
[0010] Compared with the prior art, the beneficial effects of the present utility model are as follows: By providing two relatively independent first mounting surfaces and second mounting surfaces on the base, precision detection is carried out by respectively clamping the holes of the main body part of the rear shell through the first detection pins and second detection pins provided on the first mounting surface corresponding to the positions of the holes of the vehicle rear shell. The rear shell is mounted on the second mounting surface by the support blocks on both sides of the base supporting the two ends of the rear shell. The second positioning pins on both sides of the second mounting surface are used for positioning detection of the holes at both ends of the rear shell, thereby ensuring the hole precision of the rear shell. The structure is simple and the detection efficiency is high. BRIEF DESCRIPTION OF THE DRAWINGS
[0011] Figure 1 is a three-dimensional structure schematic diagram of the present utility model;
[0012] Figure 2 is an exploded schematic diagram of the connection structure of the present utility model;
[0013] Figure 3 is a schematic diagram of the workpiece mounting structure of the present utility model.
[0014] In the figure: 1, base; 2, first mounting surface; 3, first detection pin; 4, second detection pin; 5, convex block; 6, first positioning pin; 7, support block; 701, support surface; 8, insertion pin; 9, positioning hole; 10, second mounting surface; 11, second positioning pin; 12, gap; 13, workpiece. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0015] The technical solutions of the present utility model will be further described below in conjunction with the accompanying drawings and specific embodiments.
[0016] Embodiment 1
[0017] As Figure 1 , Figure 2 and Figure 3 shown, a fixture for detecting the position degree of holes of a vehicle rear shell proposed by the present utility model includes a base 1. The top end face of the base 1 is provided with a first mounting surface 2. The first mounting surface 2 is provided with convex blocks 5 for clamping the workpiece 13. A plurality of first positioning pins 6 are provided on the end face of the convex block 5 for positioning and mounting the rear shell. Support blocks 7 are also provided on both sides of the first mounting surface 2. The top end face of the support block 7 is provided with a second mounting surface 10. Second positioning pins 11 are provided on both second mounting surfaces 10 for detecting the position degree of the holes on both sides of the rear shell.
[0018] In the embodiment, support surfaces 701 are also provided on both sides of the first mounting surface 2, and the shapes of the two support surfaces 701 correspond to the shapes of both sides of the workpiece 13.
[0019] In an embodiment, the two side support surfaces 701 are inclined surfaces provided on the support block 7. Positioning holes 9 are provided on both of the two side support surfaces 701. A plug pin 8 is detachably connected in the positioning hole 9 and is used to support and fix both ends of the rear shell.
[0020] In an embodiment, the convex block 5 protrudes from the top end surface of the base 1 and corresponds to the shape of the workpiece 13. A second detection pin 4 independent of the convex block 5 is further provided on the top end surface of the base 1. A first detection pin 3 protruding from the convex block 5 is provided on the top end surface of the convex block 5. It is used for plugging connection with the workpiece 13 to perform basic hole detection.
[0021] In an embodiment, the second mounting surface 10 is used for clamping and mounting the workpiece 13 through the second positioning pins 11 on the two side support blocks 7. A gap 12 is provided between the second mounting surface 10 and the first mounting surface 2 to facilitate the detection of the holes on both sides of the rear shell.
[0022] The working principle of a fixture for detecting the hole position degree of a vehicle rear shell based on the first embodiment is as follows: When the present utility model is used, the workpiece 13 is clamped and mounted on the convex block 5 provided on the first mounting surface 2. The workpiece 13 is fixed by inserting several positioning pins on the convex block 5 into the corresponding holes on the workpiece 13 respectively. Both sides of the workpiece 13 are attached to the support surface 701. Positioning holes 9 corresponding to the holes at both ends of the workpiece 13 are provided on the support surface 701. The plug pin 8 passes through the holes at both ends of the workpiece 13 and is connected to the positioning hole 9 to fix both ends of the workpiece 13 on the two side support surfaces 701. The first detection pin 3 and the second detection pin 4 on the first mounting surface 2 respectively pass through the corresponding holes opened on the main body of the workpiece 13. When inserting, it is judged whether the holes on the workpiece 13 interfere with the detection pins, whether there is a gap between the holes and the detection pins after insertion, and the fitting degree between the detection pins and the holes to judge the machining accuracy of the holes on the workpiece 13. After the detection is completed, the plug pin 8 is pulled out, and the workpiece 13 is taken off. The workpiece 13 is inserted into the second positioning pins 11 provided on the second mounting surface 10 through the holes provided on both ends thereof, so as to mount the workpiece 13 on the second mounting surface 10. A gap 12 exists between the second mounting surface 10 and the first mounting surface 2, so that the main body part of the workpiece 13 is vacant, which is convenient for the cooperation between the holes at both ends of the workpiece 13 and the second positioning pins 11, and further for detecting the accuracy of the holes at both ends.
[0023] The above specific embodiments are only several preferred embodiments of the present utility model. Based on the technical solution of the present utility model and the relevant revelations of the above embodiments, those skilled in the art can make various alternative improvements and combinations to the above specific embodiments.
Claims
1. A fixture for detecting the hole position degree of a vehicle rear shell, comprising a base (1), characterized in that: The top end face of the base (1) is provided with a first mounting surface (2). A convex block (5) for clamping a workpiece (13) is arranged on the first mounting surface (2). A plurality of first positioning pins (6) are arranged on the end face of the convex block (5). Support blocks (7) are further arranged on both sides of the first mounting surface (2). The top end face of the support block (7) is provided with a second mounting surface (10). Second positioning pins (11) are arranged on both of the second mounting surfaces (10) on both sides.
2. The fixture for detecting the hole position degree of a vehicle rear shell according to claim 1, wherein: Support surfaces (701) are further arranged on both sides of the first mounting surface (2). The shapes of the support surfaces (701) on both sides correspond to the shapes of both sides of the workpiece (13).
3. The fixture for detecting the hole position degree of a vehicle rear shell according to claim 2, wherein: The support surfaces (701) on both sides are inclined surfaces arranged on the support blocks (7). Positioning holes (9) are arranged on both of the support surfaces (701) on both sides. Plug pins (8) are detachably connected in the positioning holes (9).
4. A fixture for detecting the hole position degree of a rear shell of a vehicle, according to claim 1, characterized in that: The convex block (5) protrudes from the top end face of the base (1) and corresponds to the shape of the workpiece (13). A second detection pin (4) independently arranged from the convex block (5) is further arranged on the top end face of the base (1). A first detection pin (3) protruding from the convex block (5) is arranged on the top end face of the convex block (5).
5. A fixture for detecting the hole position degree of a vehicle rear shell according to claim 1, characterized in that: The second mounting surface (10) is used for clamping and mounting the workpiece (13) through the second positioning pins (11) on the support blocks (7) on both sides. A gap (12) is arranged between the second mounting surface (10) and the first mounting surface (2).