Checking fixture for lower protective plate of electric automobile
By designing a fixture for the lower guard plate of electric vehicles, and utilizing positioning holes and clamping mechanisms to achieve rapid and accurate inspection, the problems of low inspection efficiency and poor accuracy are solved, ensuring batch-to-batch inspection consistency and assembly stability, and improving driving comfort.
Patent Information
- Application Number
- CN202423316507.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-31
- Publication Date
- 2025-11-21
- Estimated Expiration
- 2034-12-31
AI Technical Summary
The current electric vehicle underbody protection plate inspection efficiency is low and the positioning accuracy is poor, resulting in inconsistent inspection accuracy within the same batch, which affects assembly stability and driving comfort.
A tooling for inspecting the lower guard plate of an electric vehicle was designed, including a support frame, a mounting base, a positioning seat, and a lower guard plate clamping mechanism. The tooling simulates the installation environment through positioning holes and positioning pins, and performs rapid inspection in conjunction with the clamping mechanism. The tooling measures the external dimensions using a steel ruler.
This improved the accuracy and efficiency of testing lower guard plates in the same batch, ensured the assembly accuracy between guard plates in the later stages, reduced friction noise, and improved driving comfort.
Smart Images
Figure CN223580843U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the technical field of electric vehicle lower guard plate inspection tools, and provides an inspection tool for electric vehicle lower guard plates that improves the consistency of inspection accuracy and efficiency of the same batch of lower guard plates. Background Technology
[0002] During the manufacturing process of electric vehicles, various functional underbody protection plates are custom-designed for different vehicle models to protect the motor, battery, and control components. The manufacturing process of the underbody protection plates often involves injection molding, inspection, and subsequent containerization and transportation.
[0003] Existing electric vehicle underbody protection plates require inspection of their external dimensions using inspection tools. These tools are specifically designed and developed according to the requirements of each vehicle model. They allow for the inspection of the dimensions and size of the plates using professional automotive inspection tools, followed by measurement and evaluation. They are mainly used for determining and adjusting the accuracy of molds before production preparation and for dimensional management after mass production.
[0004] Current methods for inspecting the dimensions of electric vehicle underbody protection plates involve measuring with internal and external calipers or a steel ruler. This approach is inefficient and lacks positioning accuracy, resulting in inconsistent inspection precision within the same batch of underbody protection plates. This leads to excessively low assembly precision between injection-molded parts, affecting assembly stability and causing friction noise during vehicle operation, thus impacting driving comfort. Utility Model Content
[0005] In view of this, the purpose of this utility model is to provide a tool for inspecting electric vehicle lower guard plates that improves the consistency of inspection accuracy and efficiency in the same batch of lower guard plates.
[0006] To achieve the above objectives, this utility model provides the following technical solution:
[0007] This utility model provides a gauge for the lower guard plate of an electric vehicle, which includes a support frame, a mounting base fixed to the top of the support frame, and multiple positioning seats fixed to the top surface of the mounting base. The area enclosed by each positioning seat matches the area of the lower guard plate to be inspected. A positioning hole is provided on each positioning seat, and each positioning hole corresponds to a connecting hole B on the lower guard plate A to be inspected. A positioning pin that matches the hole is inserted into the positioning hole.
[0008] A lower guard plate clamping mechanism is provided on the outer side of the area enclosed by each positioning seat, and positioning seat mounting calibration seats are provided at the four corners of the mounting base.
[0009] For the convenience of quick detection of the installation position precision between the to-be-detected lower guard plate A and other guard plates, the lower guard plate pressing mechanism quickly detects that, in the above scheme, further: the lower guard plate pressing mechanism comprises a base, a through slot at the top end of the base, a movable arm connected to the tail end of the through slot through a rotating pin shaft, and a pressing plate at the front end of the movable arm, wherein the outer wall of the pressing plate is provided with a detection reference plate surface.
[0010] For the convenience of disassembling and assembling the lower guard plate pressing mechanism, in the above scheme, further: the base of the lower guard plate pressing mechanism is fixed on the top plate surface of the mounting base plate through screws.
[0011] The beneficial effects of the utility model are:
[0012] The surface area enclosed by each positioning seat matches the surface area of the to-be-detected lower guard plate, a positioning hole is arranged on each positioning seat, so that the gauge has a simulated installation environment for the to-be-detected lower guard plate, the actual installation environment is simulated through the positioning hole grinding, the to-be-detected lower guard plate is pressed by the lower guard plate pressing mechanism, the contour size can be quickly measured by using a steel ruler, the consistency of the detection precision of the lower guard plates in the same batch is ensured, and the detection efficiency is improved.
[0013] The outer wall of the pressing plate is provided with a detection reference plate surface, the installation position precision between the to-be-detected lower guard plate and other guard plates is quickly detected, and the assembly precision between the guard plates in the later period is effectively ensured. BRIEF DESCRIPTION OF DRAWINGS
[0014] In order to make the purpose, technical scheme and advantages of the utility model more clear, the utility model will be described in detail below with reference to the drawings, and the drawings are as follows:
[0015] Fig. 1 It is a three-dimensional structure schematic view of the utility model;
[0016] Fig. 2 It is a three-dimensional structure schematic view of the utility model when the to-be-detected lower guard plate is installed;
[0017] The drawings are as follows: 1, support frame; 2, mounting base plate; 3, positioning seat; 4, positioning hole; 5, positioning pin; 6, lower guard plate pressing mechanism; 7, base; 8, through slot; 9, rotating pin shaft; 10, movable arm; 11, pressing plate; 12, detection reference plate surface; 13, positioning seat installation calibration seat; 14, universal wheel; 15, drawer type tool box; 16, locking screw; A, to-be-detected lower guard plate; B, connecting hole. DETAILED DESCRIPTION
[0018] The present invention will be further described below with reference to specific embodiments. The accompanying drawings are for illustrative purposes only, representing schematic diagrams rather than actual physical objects, and should not be construed as limiting the scope of this patent. To better illustrate the embodiments of the present invention, some components in the drawings may be omitted, enlarged, or reduced, and do not represent the actual dimensions of the product. It is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted in the drawings.
[0019] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. The utility model will be further described in detail below with reference to the accompanying drawings.
[0020] like Figs. 1-2 As shown, this utility model provides a gauge for the lower guard plate of an electric vehicle, which includes a support frame 1, a mounting base plate 2 fixed to the top of the support frame 1, and multiple positioning seats 3 fixed to the top surface of the mounting base plate 2. The surface area enclosed by each positioning seat 3 matches the surface area of the lower guard plate to be inspected. A positioning hole 4 is provided on each positioning seat 3, and each positioning hole 4 corresponds to a connecting hole B on the lower guard plate A to be inspected. A positioning pin 5 that matches the positioning hole 4 is inserted into the positioning hole 4.
[0021] A lower guard plate clamping mechanism 6 is provided on the outer side of the area enclosed by each positioning seat 3, and positioning seat mounting calibration seats 13 are provided at the four corners of the mounting base plate 2. In this embodiment, the positional relationship between each positioning seat 3 is set according to the actual structure of the lower guard plate A to be tested. The attached figure shows the structure of the rear subframe guard plate of an electric vehicle. The positioning pin 5 and the positioning hole 4 can be connected by threads. In this embodiment, universal wheels 14 are fixed at the four bottom corners of the support frame 1, and a drawer-type toolbox 15 is provided on the support frame 1.
[0022] In order to quickly detect the installation position precision between the lower guard plate A and other guard plates, the lower guard plate pressing mechanism 6 quickly detects that in the above embodiment, preferably: the lower guard plate pressing mechanism 6 comprises a base 7, a through slot 8 located at the top end of the base 7, a movable arm 10 connected at the tail end of the through slot 8 through a rotating pin shaft 9, and a pressing plate 11 located at the front end of the movable arm 10, wherein the outer wall of the pressing plate 11 is provided with a detection reference plate surface 12. In this embodiment, the installation position precision between the lower guard plate A and other guard plates can be detected by using a plug gauge, thereby effectively improving the detection efficiency. In this embodiment, a locking screw 16 is arranged on the side wall of the through slot 8.
[0023] In order to facilitate the assembly and disassembly of the lower guard plate pressing mechanism 6, in the above embodiment, preferably: the base 7 of the lower guard plate pressing mechanism 6 is fixed on the top plate surface of the mounting base plate 2 through screws.
[0024] In the above embodiment, all components are market products.
[0025] Finally, it should be pointed out that the above embodiments are only used to illustrate the technical solutions of the present application and are not limiting. Although the present application has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solutions of the present application can be modified or replaced equivalently without departing from the purpose and scope of the present application, and all should be covered in the scope of the claims of the present application.
Claims
1. An electric vehicle rocker panel gauge, characterized by: It includes support frame (1), fixed on the top of support frame (1) installation base plate (2), fixed on the top of installation base plate (2) multiple positioning seat (3), each positioning seat (3) enclosed area matches the area of the lower guard plate to be detected, a positioning hole (4) is arranged on each positioning seat (3), each positioning hole (4) corresponds to a connecting hole (B) on the lower guard plate (A) to be detected, a positioning pin (5) matched with the positioning hole (4) is inserted into the positioning hole (4); A lower guard plate pressing mechanism (6) is arranged outside the area enclosed by each positioning seat (3), and a positioning seat installation calibration seat (13) is arranged at the four corners of the installation base plate (2).
2. The gauge for an underbody panel of an electric vehicle according to claim 1, characterized by: The lower guard plate pressing mechanism (6) includes a base (7), a through slot (8) located at the top of the base (7), a movable arm (10) connected to the tail end of the through slot (8) through a rotating pin shaft (9), and a pressing plate (11) located at the front end of the movable arm (10), wherein the outer wall of the pressing plate (11) is provided with a detection reference plate surface (12).
3. The gauge for an underbody panel of an electric vehicle according to claim 2, characterized by: The base (7) of the lower guard plate pressing mechanism (6) is fixed on the top plate surface of the installation base plate (2) through screws.