Automobile front end frame testing fixture

By using an automated clamping and positioning system and a sensor detection system, the problems of cumbersome operation and large error in the detection of automotive front-end frames in existing technologies have been solved. This system enables rapid and accurate aperture detection and data quantification recording, reducing labor intensity.

CN224416069UActive Publication Date: 2026-06-26NANJING STARK IND EQUIP CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
NANJING STARK IND EQUIP CO LTD
Filing Date
2025-09-18
Publication Date
2026-06-26

AI Technical Summary

Technical Problem

Existing automotive front-end frame inspection devices have drawbacks: positioning and aperture detection must be performed in separate steps, the operation process is cumbersome, reliance on human experience leads to large errors, manual clamping is labor-intensive and the clamping force is uneven, the equipment has poor adaptability, and it is difficult to achieve quantitative data recording.

Method used

An automated clamping and positioning structure and sensor detection system are adopted. The frame aperture is detected synchronously through a slip ring structure and a spring pressure sensor. Combined with a motor-driven bidirectional lead screw, the frame is automatically clamped and positioned. The detection results are displayed by a processor and LED lights.

Benefits of technology

It improves detection efficiency and data objectivity, reduces the labor intensity of operators, reduces errors, and enables rapid and accurate pore size detection and quantitative data recording.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224416069U_ABST
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Abstract

The utility model discloses a kind of automobile front end frame testing fixture, it includes bottom plate, bottom surface is provided with four supporting legs;Clamping component, be set in the inside of bottom plate, with four and distribute at the edge of bottom plate;Detection component, is set at the top end of clamping component;Limiting component, is set at the bottom end of clamping component, and can be embedded with detection component;Measuring component, is installed in the middle part of bottom plate.Through the above structure, clamping component is set to be able to clamp frame, and can drive limiting component to limit the positioning hole of frame, cooperate with the detection component that can be embedded with limiting component, can be completed to the positioning of frame and aperture size detection simultaneously, without staff respectively operating, reduce the labor intensity of operator.
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Description

Technical Field

[0001] This utility model relates to the field of automotive inspection tool technology, and in particular to an automotive front-end frame inspection tool. Background Technology

[0002] Currently, the inspection of front-end frames in the automotive manufacturing industry mainly relies on traditional inspection tools. These tools typically use fixed positioning pins and inspection blocks for manual operation, which has significant limitations: positioning and hole diameter inspection must be performed step by step, the operation process is cumbersome, and the inspection efficiency is low. The inspection of traditional go and no-go gauges relies on the operator's feel and experience, which is highly subjective and prone to misjudgment, and it is impossible to achieve quantitative data recording. The fixed structure has poor adaptability, and different inspection tools or components need to be replaced for different hole diameters, which increases equipment costs and adjustment time. In addition, the clamping and positioning of the frame mostly uses manual clamps, which is labor-intensive and has the risk of uneven clamping force. Utility Model Content

[0003] The purpose of this utility model is to solve at least one of the technical problems existing in the prior art, and to provide an automotive front-end frame inspection tool that can realize automated clamping and positioning of the frame. Through an innovative slip ring structure and sensor detection system, it can simultaneously complete the rapid and accurate detection of the frame hole size during the positioning process, effectively avoiding the errors caused by traditional manual operation, significantly improving the detection efficiency and the objectivity of the data, and reducing the labor intensity of operators.

[0004] This utility model also provides a car front frame inspection fixture as described above, including: a base plate with four legs on the bottom surface;

[0005] Clamping components are located inside the base plate, and there are four of them distributed along the edge of the base plate;

[0006] The detection component is located at the top of the clamping component;

[0007] A limiting component is located at the bottom of the clamping component and can be engaged with the detection component;

[0008] The measuring component is mounted in the middle of the base plate.

[0009] This utility model also has the following technical features:

[0010] In one embodiment of this utility model, the bottom plate has four through holes located at the four corners of the bottom plate.

[0011] In one embodiment of this utility model, the clamping component includes a motor, a bidirectional lead screw, an upper support rod, a lower support rod, and a sliding frame. There are two clamping components located on both sides of the base plate. The output end of the motor is fixedly connected to the top end of the bidirectional lead screw, and the end face of the motor is fixedly connected to the upper surface of the sliding frame. The end of the bidirectional lead screw is rotatably connected to the inner sidewall of the sliding frame. The upper support rod and the lower support rod are respectively disposed at the upper and lower ends of the bidirectional lead screw. The side surfaces of the upper support rod and the lower support rod are slidably connected to the inner sidewall of the sliding frame. There are two sliding frames located at both ends of the upper and lower support rods.

[0012] In one embodiment of this utility model, the side surface of the sliding frame is fixedly connected to the inner side wall of the base plate, and the upper support rod and the lower support rod are located on the upper and lower sides of the base plate, respectively.

[0013] In one embodiment of this utility model, the detection component includes an upper slip ring, an upper push rod, a spring, a pressure sensor, a processor, and an LED light. The upper slip ring has several components that are slidably connected to each other. The side surface of the upper push rod is slidably connected to the inner side wall of the innermost upper slip ring. The bottom end of the spring is fixedly connected to the upper surface of the upper slip ring. The end of the spring away from the upper slip ring is fixedly connected to the lower surface of the pressure sensor. The pressure sensor is electrically connected to the processor, and the processor is electrically connected to the LED light.

[0014] In one embodiment of this utility model, the upper push rod and the upper sliding ring are located directly above the through hole. The upper surface of the upper push rod is fixedly connected to the lower surface of the processor. The side surface of the upper sliding ring is slidably connected to the inner side wall of the upper support rod. The side surfaces of the pressure sensor and the processor are fixedly connected to the inner side wall of the upper support rod. The lower surface of the LED light is fixedly connected to the upper surface of the upper support rod.

[0015] In one embodiment of this utility model, the limiting component includes a sliding ring and a lower push rod. The sliding ring and the lower push rod are located directly below the through hole. There are several sliding rings that are slidably connected to each other. The side surface of the lower push rod is slidably connected to the inner wall of the innermost sliding ring. The lower surface of the lower push rod is fixedly connected to the inner wall of the lower support rod. The side surface of the sliding ring is slidably connected to the inner wall of the lower push rod. A sealed cavity is provided between the sliding ring and the lower support rod.

[0016] In one embodiment of this utility model, the measuring component includes a measuring ruler and an indicator plate. The lower surface of the measuring ruler is fixedly connected to the upper surface of the base plate, and the bottom end of the indicator plate is slidably connected to the upper surface of the base plate. The bottom end of the indicator plate is in contact with the upper surface of the measuring ruler, and there are two indicator plates located at the front and rear ends of the base plate.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. Several sliding rings and upper sliding rings are provided on the upper surface of the lower support rod and the lower surface of the upper support rod. The sliding rings and upper sliding rings are slidably connected to each other, and the sliding rings and upper sliding rings can be interlocked. A sealed cavity is provided between the sliding rings and the lower support rod. A spring is provided on the upper surface of the upper sliding ring. When the upper and lower sliding rings are in contact with the upper and lower surfaces of the frame, only the sliding ring that matches the positioning hole of the frame can enter the cavity. The pressure sensor at the top of the spring can detect the size of the upper sliding ring that has passed through the positioning hole, thereby achieving both frame positioning and hole size detection at the same time.

[0019] 2. Equipped with a motor that can rotate a bidirectional lead screw, driving the upper and lower support rods to approach or move away from each other, making it easy for workers to place the frame on the upper surface of the base plate, and then control the detection and limiting components on the surfaces of the upper and lower support rods to restrict the frame and complete the frame clamping. Attached Figure Description

[0020] The present invention will be further described below with reference to the accompanying drawings and embodiments;

[0021] Figure 1 This is an overall structural diagram of the automotive front-end frame inspection fixture of this utility model;

[0022] Figure 2 This is a top view of the automotive front-end frame inspection fixture of this utility model;

[0023] Figure 3 This is a cross-sectional structural diagram of the clamping component of the automotive front-end frame inspection tool of this utility model;

[0024] Figure 4 This utility model is a vehicle front-end frame inspection tool. Figure 3 Structural diagram at point A in the middle.

[0025] Legend:

[0026] 1. Base plate; 11. Through holes;

[0027] 2. Clamping components; 21. Motor; 22. Bidirectional lead screw; 23. Upper support rod; 24. Lower support rod; 25. Slide frame;

[0028] 3. Detection components; 31. Upper slip ring; 32. Upper push rod; 33. Spring; 34. Pressure sensor; 35. Processor; 36. LED light;

[0029] 4. Limiting components; 41. Sliding ring; 42. Lower push rod;

[0030] 5. Measuring components; 51. Measuring ruler; 52. Indicator plate. Detailed Implementation

[0031] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0032] It should be noted that the core defects of an existing automotive front-end frame inspection fixture are: the step-by-step positioning and detection operation leads to low efficiency, the reliance on human experience for judgment introduces errors, and the manual clamping and limiting is labor-intensive and difficult to guarantee consistent clamping force. To address these issues, an automotive front-end frame inspection fixture is proposed, comprising: a base plate 1 with four legs on its bottom surface; four clamping components 2 located inside the base plate 1 and distributed along its edges; a detection component 3 located at the top of the clamping component 2; a limiting component 4 located at the bottom of the clamping component 2 and capable of engaging with the detection component 3; and a measuring component 5 installed in the middle of the base plate 1.

[0033] In one embodiment, see Figure 1 The base plate 1 has four through holes 11 located at the four corners of the base plate 1.

[0034] Specifically, this allows the limiting component 4 to pass through the through hole 11 to restrict the frame.

[0035] In one embodiment, see Figure 3 The clamping component 2 includes a motor 21, a bidirectional lead screw 22, an upper support rod 23, a lower support rod 24, and a sliding frame 25. There are two clamping components 2 located on both sides of the base plate 1. The output end of the motor 21 is fixedly connected to the top end of the bidirectional lead screw 22, and the end face of the motor 21 is fixedly connected to the upper surface of the sliding frame 25. The end of the bidirectional lead screw 22 is rotatably connected to the inner side wall of the sliding frame 25. The upper support rod 23 and the lower support rod 24 are respectively located at the upper and lower ends of the bidirectional lead screw 22. The side surfaces of the upper support rod 23 and the lower support rod 24 are slidably connected to the inner side wall of the sliding frame 25. There are two sliding frames 25 located at the ends of the upper support rod 23 and the lower support rod 24.

[0036] Specifically, starting the motor 21 can rotate the bidirectional lead screw 22, causing the upper support rod 23 and the lower support rod 24 to move closer or further apart inside the slide frame 25.

[0037] In one embodiment, see Figure 3 The side surface of the sliding frame 25 is fixedly connected to the inner wall of the base plate 1, and the upper support rod 23 and the lower support rod 24 are located on the upper and lower sides of the base plate 1, respectively.

[0038] Specifically, the sliding frame 25 is tightened so that the upper support rod 23 and the lower support rod 24 inside it can rise and fall stably.

[0039] In one embodiment, see Figure 3 and Figure 4 The detection component 3 includes an upper slip ring 31, an upper push rod 32, a spring 33, a pressure sensor 34, a processor 35, and an LED light 36. The upper slip ring 31 has several components that are slidably connected to each other. The side surface of the upper push rod 32 is slidably connected to the inner wall of the innermost upper slip ring 31. The bottom end of the spring 33 is fixedly connected to the upper surface of the upper slip ring 31. The end of the spring 33 away from the upper slip ring 31 is fixedly connected to the lower surface of the pressure sensor 34. The pressure sensor 34 is electrically connected to the processor 35, and the processor 35 is electrically connected to the LED light 36.

[0040] Specifically, the upper slip ring 31, which is too large to pass through the frame positioning hole, can rise relative to the upper slip ring 31 that can pass through the frame positioning hole when it is against the frame, resisting the elastic force of the spring 33. The force of the spring 33 on the pressure sensor 34 transmits the information to the processor 35, thereby detecting the size of the upper slip ring 31 that can pass through the positioning hole. The signal is then transmitted to the operator through the LED light 36 to complete the detection of the positioning hole size.

[0041] In one embodiment, see Figure 1 and Figure 4 The upper push rod 32 and the upper sliding ring 31 are located directly above the through hole 11. The upper surface of the upper push rod 32 is fixedly connected to the lower surface of the processor 35. The side surface of the upper sliding ring 31 is slidably connected to the inner wall of the upper support rod 23. The side surfaces of the pressure sensor 34 and the processor 35 are fixedly connected to the inner wall of the upper support rod 23. The lower surface of the LED light 36 is fixedly connected to the upper surface of the upper support rod 23.

[0042] Specifically, when the top rod 32 descends, it can drive the detection component 3 to descend, so that the detection component 3 can cooperate with the limiting component 4 to achieve the limiting of the frame and the detection of the positioning hole.

[0043] In one embodiment, see Figure 3 The limiting component 4 includes a sliding ring 41 and a lower push rod 42. The sliding ring 41 and the lower push rod 42 are located directly below the through hole 11. There are several sliding rings 41 that are slidably connected to each other. The side surface of the lower push rod 42 is slidably connected to the inner wall of the innermost sliding ring 41. The lower surface of the lower push rod 42 is fixedly connected to the inner wall of the lower support rod 24. The side surface of the sliding ring 41 is slidably connected to the inner wall of the lower push rod 42. A sealed cavity is set between the sliding ring 41 and the lower support rod 24.

[0044] Specifically, the sliding ring 41 can form an air spring through the sealed cavity below it, allowing the sliding ring 41 that cannot pass through the frame positioning hole to slide down, while the sliding ring 41 that can pass through the frame positioning hole can normally enter the positioning hole, thereby making the lower push rod 42 fit with the upper push rod 32, so that the upper sliding ring 31 that can pass through the positioning hole and the sliding ring 41 can fit together, forming a cylinder to limit the frame and prevent the sliding ring 41 from moving against the upper sliding ring 31.

[0045] In one embodiment, see Figure 2 The measuring component 5 includes a measuring ruler 51 and an indicator plate 52. The lower surface of the measuring ruler 51 is fixedly connected to the upper surface of the base plate 1, and the bottom end of the indicator plate 52 is slidably connected to the upper surface of the base plate 1. The bottom end of the indicator plate 52 is in contact with the upper surface of the measuring ruler 51. There are two indicator plates 52 located at the front and rear ends of the base plate 1.

[0046] Specifically, the sliding indicator plate 52 can be fitted with the frame, and the indicator plate 52 can be fitted with the measuring ruler 51, so that the indicator plate 52 can point to the measuring ruler 51 to facilitate the staff to measure the frame size.

[0047] Working principle: During the use of the device, the starter motor 21 can rotate the bidirectional lead screw 22, which can drive the upper support rod 23 and the lower support rod 24 to approach or move away from each other, making it convenient for the operator to place the frame on the upper surface of the base plate 1. Then, the detection components 3 and limiting components 4 on the surfaces of the upper support rod 23 and the lower support rod 24 are controlled to restrict the frame, thus completing the clamping of the frame. Several sliding rings 41 and upper sliding rings 31 are provided on the upper surface of the lower support rod 24 and the lower surface of the upper support rod 23. The sliding rings 41 and the upper sliding rings 31 are slidably connected to each other, and the sliding rings 41 and the upper sliding rings 31 can be interlocked. A sealed cavity is provided between the sliding rings 41 and the lower support rod 24. A spring 33 is provided on the upper surface. When the upper sliding ring 31 and the lower sliding ring 41 are in contact with the upper and lower surfaces of the frame, only the upper sliding ring 31 and the lower sliding ring 41 that can pass through the positioning hole of the frame can enter. The upper sliding ring 31 that does not pass through the positioning hole can be squeezed by the spring 33 to the pressure sensor 34 at its top. With the help of the processor 35, the size of the upper sliding ring 31 that has passed through the positioning hole can be detected, thereby completing the detection of the size of the positioning hole of the frame. When the upper push rod 32 and the lower push rod 42 are in contact, the upper sliding ring 31 and the lower sliding ring 41 are interlocked and will not squeeze the spring 33 to cause movement, so that the upper sliding ring 31 and the lower sliding ring 41 form a cylinder to limit the frame.

[0048] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. An automobile front end frame testing device characterized by comprising: include: The base plate (1) has four legs on its bottom surface; Clamping components (2) are provided inside the base plate (1), and there are four of them distributed at the edge of the base plate (1); The detection component (3) is located at the top of the clamping component (2); The limiting component (4) is located at the bottom end of the clamping component (2) and can be engaged with the detection component (3); The measuring component (5) is installed in the middle of the base plate (1).

2. The automotive front-end frame inspection fixture according to claim 1, characterized in that, The base plate (1) has four through holes (11) located at the four corners of the base plate (1).

3. The automotive front-end frame inspection fixture according to claim 1, characterized in that, The clamping component (2) includes a motor (21), a bidirectional lead screw (22), an upper support rod (23), a lower support rod (24), and a sliding frame (25). There are two clamping components (2) located on both sides of the base plate (1). The output end of the motor (21) is fixedly connected to the top end of the bidirectional lead screw (22). The end face of the motor (21) is fixedly connected to the upper surface of the sliding frame (25). The end of the bidirectional lead screw (22) is rotatably connected to the inner wall of the sliding frame (25). The upper support rod (23) and the lower support rod (24) are respectively located at the upper and lower ends of the bidirectional lead screw (22). The side surfaces of the upper support rod (23) and the lower support rod (24) are slidably connected to the inner wall of the sliding frame (25). There are two sliding frames (25) located at the two ends of the upper support rod (23) and the lower support rod (24).

4. The automotive front-end frame inspection fixture according to claim 3, characterized in that, The side surface of the sliding frame (25) is fixedly connected to the inner wall of the base plate (1), and the upper support rod (23) and the lower support rod (24) are located on the upper and lower sides of the base plate (1) respectively.

5. The automotive front-end frame inspection fixture according to claim 1, characterized in that, The detection component (3) includes an upper slip ring (31), an upper push rod (32), a spring (33), a pressure sensor (34), a processor (35), and an LED light (36). The upper slip ring (31) has several components that are slidably connected to each other. The side surface of the upper push rod (32) is slidably connected to the inner wall of the innermost upper slip ring (31). The bottom end of the spring (33) is fixedly connected to the upper surface of the upper slip ring (31). The end of the spring (33) away from the upper slip ring (31) is fixedly connected to the lower surface of the pressure sensor (34). The pressure sensor (34) is electrically connected to the processor (35), and the processor (35) is electrically connected to the LED light (36).

6. The automotive front-end frame inspection fixture according to claim 5, characterized in that, The upper push rod (32) and the upper slip ring (31) are located directly above the through hole (11). The upper surface of the upper push rod (32) is fixedly connected to the lower surface of the processor (35). The side surface of the upper slip ring (31) is slidably connected to the inner wall of the upper support rod (23). The side surfaces of the pressure sensor (34) and the processor (35) are fixedly connected to the inner wall of the upper support rod (23). The lower surface of the LED light (36) is fixedly connected to the upper surface of the upper support rod (23).

7. The automotive front-end frame inspection fixture according to claim 1, characterized in that, The limiting component (4) includes a sliding ring (41) and a lower push rod (42). The sliding ring (41) and the lower push rod (42) are located directly below the through hole (11). There are several sliding rings (41) that are slidably connected to each other. The side surface of the lower push rod (42) is slidably connected to the inner wall of the innermost sliding ring (41). The lower surface of the lower push rod (42) is fixedly connected to the inner wall of the lower support rod (24). The side surface of the sliding ring (41) is slidably connected to the inner wall of the lower push rod (42). A sealed cavity is set between the sliding ring (41) and the lower support rod (24).

8. The automotive front-end frame inspection fixture according to claim 1, characterized in that, The measuring component (5) includes a measuring ruler (51) and an indicator plate (52). The lower surface of the measuring ruler (51) is fixedly connected to the upper surface of the base plate (1). The bottom end of the indicator plate (52) is slidably connected to the upper surface of the base plate (1). The bottom end of the indicator plate (52) is in contact with the upper surface of the measuring ruler (51). There are two indicator plates (52) located at the front and rear ends of the base plate (1).