Adjustable edge support device for automobile under shield gauge

By combining a guide rod, a two-way lead screw, and a limiting side plate, the problem of existing devices being unable to adapt to the width adjustment of different models of lower guard plates and the offset during the detection process is solved. This achieves stable support and fixation of the lower guard plate, improving the accuracy and applicability of the detection.

CN224464508UActive Publication Date: 2026-07-07CHONGQING AI DING MACHINERY MANUFACTURING CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CHONGQING AI DING MACHINERY MANUFACTURING CO LTD
Filing Date
2025-07-18
Publication Date
2026-07-07

AI Technical Summary

Technical Problem

The existing automotive underbody protection plate inspection tool with adjustable edge support device is difficult to adapt to the width adjustment of different models of underbody protection plates, and the underbody protection plate is prone to displacement during the inspection process, resulting in inaccurate inspection results and increased usage costs.

Method used

The system employs a combination structure consisting of a guide rod, a two-way lead screw, an adjusting seat, an electric telescopic rod, a limiting base plate, and a limiting side plate. The spacing between the limiting base plates is adjusted by rotating the two-way lead screw, and the lower guard plate is fixed by a combination structure of the limiting side plate and a locking pin, ensuring the stability of the testing process.

Benefits of technology

It enables flexible support and fixation of different models of underplates, improves the stability and adaptability of testing, avoids support loosening due to external forces, and reduces usage costs.

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Abstract

The utility model discloses an adjustable edge support device for automobile lower guard plate testing fixture relates to automobile lower guard plate testing fixture technical field, including testing fixture table, the both ends of testing fixture table are all seted up recess, and the recess in one side is provided with two -way screw rod, and two -way screw rod is connected in the recess both ends through bearing, and one end of two -way screw rod is connected with drive limit structure and is connected to testing fixture table, another recess is fixedly installed with guide rod, and guide rod fixed connection is in recess both ends. Compared with the adjustable edge support device for ordinary automobile lower guard plate testing fixture, the adjustable edge support device for automobile lower guard plate testing fixture can ensure the detection of different lower guard plates, can effectively support and fix the lower guard plate, thereby improving the adaptability of the device, and enhancing the stability of the detection process.
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Description

Technical Field

[0001] This utility model relates to the field of automotive underbody panel inspection tool technology, specifically an adjustable edge support device for automotive underbody panel inspection tool. Background Technology

[0002] The underbody protection plate is an injection-molded plate installed on the lower part of the car body to provide protection. After its production, its edge contour, hole position, and hole passability must be inspected to ensure that it can be accurately installed on the car body. Traditional measuring tools, such as smooth plug gauges, thread plug gauges, and outer diameter calipers, are used to inspect the dimensions of the underbody protection plate.

[0003] However, existing automotive underbody protection plate inspection fixtures using adjustable edge support devices only place similar automotive underbody protection plates on the support for bare-bones testing. This not only makes it difficult to adjust the width of support for different models of underbody protection plates, but also makes it difficult to ensure the overall stability of the underbody protection plate during the testing process. During testing, the underbody protection plate is easily affected by external forces and may shift, leading to inaccurate test results. Different support components are required when supporting different models of underbody protection plates, thus increasing the cost of use.

[0004] Therefore, in view of this, we have studied and improved the existing structure to address its shortcomings, and proposed an adjustable edge support device for automotive underbody inspection tool. Utility Model Content

[0005] The purpose of this invention is to provide an adjustable edge support device for an automotive underbody panel inspection tool, in order to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an adjustable edge support device for an automotive underbody inspection tool, comprising an inspection table, with grooves at both ends of the inspection table. A bidirectional lead screw is installed in one groove, connected to both ends of the groove via bearings. One end of the bidirectional lead screw extends out of the inspection table and connects to a drive limiting structure. A guide rod is fixedly installed in the other groove, fixedly connected to both ends of the groove. Two adjusting seats are fitted on both the bidirectional lead screw and the guide rod. The two adjusting seats on the bidirectional lead screw are symmetrically arranged on both sides of the bidirectional lead screw and move with the rotation of the lead screw. The two adjusting seats on the guide rod are symmetrically arranged on both sides of the guide rod. An electric telescopic rod is fixedly installed on the upper surface of each adjusting seat. A limiting base plate is fixedly connected above the active seat and the electric telescopic rod of the active seat on the same side. The inner side of the upper surface of the limiting base plate is a lower limiting surface, and the outer side of the upper surface of the limiting base plate is fixedly connected to a limiting side plate. The inner side of the limiting side plate is a side limiting surface. An automatic locking structure is provided on the limiting side plate.

[0007] Preferably, the adjusting seat is threadedly connected to the bidirectional lead screw, and the adjusting seat is slidably connected to the guide rod.

[0008] Preferably, the drive limiting structure includes positioning grooves evenly distributed around the bidirectional lead screw through part on the outer side of the gauge table, a locking pin matching the size of any positioning groove, and a handwheel fixed to one end of the bidirectional lead screw, with one end of the locking pin passing through.

[0009] Preferably, the drive limiting structure further includes a fixing plate fixedly connected to the rear side of the locking pin surface, and a telescopic spring is installed on the front surface of the fixing plate. The telescopic spring is installed between the fixing plate and the handwheel and is sleeved on the outside of the locking pin.

[0010] Preferably, the limiting base plate connects the two corresponding electric telescopic rods and the adjusting seat to form a transverse integral frame, and the limiting side plate is provided with an automatic locking structure.

[0011] Preferably, the automatic locking structure includes a double-ended telescopic rod rotatably connected to the middle of the inner surface of the limiting side plate via a shaft. The upper end of the double-ended telescopic rod is rotatably connected to a limiting plate, and the lower end of the double-ended telescopic rod is rotatably connected to an adjusting block. A thrust spring is fixedly connected to the left end of the adjusting block, and guide members are provided on the left side of the upper surface of the limiting plate and the left side of the lower surface of the adjusting block.

[0012] Preferably, the right ends of the limiting plate and the adjusting block can slide through the limiting side plate, the upper surface of the adjusting block is set as an inclined surface, the end of the thrust spring away from the adjusting block is fixedly connected to the inner surface of the limiting side plate, and the guide is composed of a rod and a block that slides on the surface of the rod, with the rod fixedly connected to the limiting side plate and the block fixedly connected to the limiting plate and the adjusting block.

[0013] Preferably, the electric telescopic rod is an inner sleeve telescopic structure, and the telescopic length is fixed by tightening with screws.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] 1. This utility model, through the setting of guide rod, bidirectional screw, adjusting seat, electric telescopic rod, limiting base plate and limiting side plate, when the bidirectional screw rotates, the left and right corresponding adjusting seats and electric telescopic rod form an overall cross frame through the limiting base plate. Under the limitation of the right guide rod, it will move back and forth, thereby adjusting the distance between the limiting base plates. When the distance is adjusted to a certain point, the front and rear edges of the lower guard plate can be placed on the limiting base plate. Then, the bidirectional screw is rotated again, and the adjusting seat will move in opposite directions again. At this time, the limiting base plate will drive the limiting side plate to move further in opposite directions. The limiting base plate supports the bottom edge of the lower guard plate, and the limiting side plate clamps the front and rear edges of the lower guard plate. Thus, the support device can be flexibly adjusted according to the overall width of the lower guard plate, and it can ensure that the lower guard plate can be effectively supported and fixed when different lower guard plates are tested, thereby improving the adaptability of the device and enhancing the stability of the testing process.

[0016] 2. This utility model, through the setting of a drive limiting structure, positioning groove, locking pin, fixing plate, and telescopic spring, pulls the locking pin out of the positioning groove. At this time, the locking pin is no longer limited by the positioning groove. Then, by driving the bidirectional screw to rotate by the handwheel, after the entire lower guard plate is fixed, the locking pin is inserted into the nearest corresponding positioning groove. The positioning groove can then limit the rotation direction of the locking pin again. Since the front end of the locking pin passes through the handwheel, the locking pin cannot move, and the handwheel cannot move either, thus locking the bidirectional screw. The elastic force of the telescopic spring itself is transmitted to the locking pin through the fixing plate, ensuring that the locking pin will not arbitrarily disengage from the positioning groove. This avoids the situation where the limiting base plate and limiting side plate move secondarily due to external force after the lower guard plate is fixed, causing the support clamp to loosen. This further improves the stability of the device in fixing the lower guard plate.

[0017] 3. This utility model, through the setting of an automatic locking structure, double-ended telescopic rods, a limiting plate, an adjusting block, and a thrust spring, ensures that when the lower guard plate is first placed on the surface of the limiting base plate, the pressed lower guard plate will use the inclined surface to push the adjusting block to retract inward into the limiting side plate. At this time, the upper and lower ends of the double-ended telescopic rods will rotate in opposite directions, that is, the upper end of the double-ended telescopic rods will push the limiting plate to extend outward from the outside of the limiting side plate, covering the upper edge of the lower guard plate. This can prevent the lower guard plate with rounded edges from flying out from above during subsequent clamping, and also prevent the lower guard plate from detaching from above due to external force during the detection process, thereby further ensuring the stability of the lower guard plate in supporting the detection. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the present invention;

[0019] Figure 2 This is a schematic diagram of the drive limiting structure of this utility model;

[0020] Figure 3 This is a side sectional view of the limiting side plate and a schematic diagram of the automatic locking structure of this utility model.

[0021] In the diagram: 1. Inspection table; 2. Groove; 3. Guide rod; 4. Two-way lead screw; 5. Adjustment seat; 6. Electric telescopic rod; 7. Limiting base plate; 8. Limiting side plate; 9. Handwheel; 10. Drive limiting structure; 1001. Positioning groove; 1002. Locking pin; 1003. Fixing plate; 1004. Telescopic spring; 11. Automatic locking structure; 1101. Double-ended telescopic rod; 1102. Limiting plate; 1103. Adjusting block; 1104. Thrust spring; 1105. Guide component. 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] like Figures 1-3 As shown, an adjustable edge support device for an automotive underbody protection plate inspection tool includes an inspection table 1. Both ends of the inspection table 1 have grooves 2. A bidirectional lead screw 4 is installed in one groove 2, connected to both ends of the groove 2 via bearings. One end of the bidirectional lead screw 4 extends out of the inspection table 1 and connects to a drive limiting structure 10. A guide rod 3 is fixedly installed in the other groove 2, fixedly connected to both ends of the groove 2. Two adjusting seats 5 are fitted onto both the bidirectional lead screw 4 and the guide rod 3. The two adjusting seats 5 on the bidirectional lead screw 4 are symmetrically arranged on both sides of the bidirectional lead screw 4, serving as active seats. The adjustment seat 5 moves with the rotation of the lead screw. The two adjustment seats 5 on the guide rod 3 are symmetrically arranged on both sides of the guide rod 3. An electric telescopic rod 6 is fixedly installed on the upper surface of each adjustment seat 5. A limiting base plate 7 is fixedly connected above the electric telescopic rod 6 of the active seat on the same side. The inner side of the upper surface of the limiting base plate 7 is the lower limiting surface. The outer side of the upper surface of the limiting base plate 7 is fixedly connected to the limiting side plate 8. The inner side of the limiting side plate 8 is the side limiting surface. An automatic locking structure 11 is provided on the limiting side plate 8. The adjustment seat 5 is threadedly connected to the bidirectional lead screw 4, and the adjustment seat 5 is slidably connected to the guide rod 3.

[0024] By adopting the above technical solution, the handwheel 9 facilitates manual rotation of the bidirectional lead screw 4;

[0025] When the bidirectional lead screw 4 rotates, the corresponding left and right adjustment seats 5 and electric telescopic rod 6 form an overall cross frame through the limiting base plate 7. The cross frame is limited by the right guide rod 3. The whole structure will not rotate with the bidirectional lead screw 4, but will only move back and forth due to the thread force.

[0026] The adjustment seat 5 uses the electric telescopic rod 6 to drive the limiting plate 7 to adjust the distance between the front and back, so as to adapt to the placement and testing of lower guard plates of different widths;

[0027] The height of the electric telescopic rod 6 can be flexibly adjusted according to the thickness of the guard plate and the detection height requirements;

[0028] The front and rear edges of the lower guard plate are placed on the limiting base plate 7. Then the bidirectional lead screw 4 is rotated again. At this time, the adjusting seat 5 will move in opposite directions again. At this time, the limiting base plate 7 will drive the limiting side plate 8 to move further in opposite directions. The limiting side plate 8 can clamp and fix the front and rear sides of the lower guard plate.

[0029] Furthermore, the drive limiting structure 10 includes positioning grooves 1001 evenly distributed around the through portion of the bidirectional lead screw 4 on the outer side of the gauge table 1, locking pins 1002 matching the size of any one of the positioning grooves 1001, and a handwheel 9 fixed to one end of the bidirectional lead screw 4, with one end of the locking pin 1002 passing through.

[0030] By adopting the above technical solution, the locking pin 1002 is pulled out from the positioning groove 1001. At this time, the locking pin 1002 is no longer limited by the positioning groove 1001, and the handwheel 9 can drive the bidirectional lead screw 4 to rotate.

[0031] After the lower guard plate is fixed, the locking pin 1002 is inserted into the nearest corresponding positioning groove 1001. The positioning groove 1001 can then limit the rotation direction of the locking pin 1002 again. Since the front end of the locking pin 1002 passes through the handwheel 9, the locking pin 1002 cannot move, and the handwheel 9 cannot move, thus locking the bidirectional lead screw 4.

[0032] Furthermore, the drive limiting structure 10 also includes a fixing plate 1003 fixedly connected to the rear side of the surface of the locking pin 1002. A telescopic spring 1004 is installed on the front surface of the fixing plate 1003. The telescopic spring 1004 is installed between the fixing plate 1003 and the handwheel 9, and is sleeved on the outside of the locking pin 1002.

[0033] By adopting the above technical solution, the elastic force of the telescopic spring 1004 is transmitted to the locking pin 1002 through the fixing plate 1003, ensuring that the locking pin 1002 will not arbitrarily disengage from the positioning groove 1001.

[0034] Furthermore, an automatic locking structure 11 is provided inside the limiting side plate 8; the automatic locking structure 11 includes a double-ended telescopic rod 1101 rotatably connected to the middle of the inner surface of the limiting side plate 8 via a shaft, the upper end of the double-ended telescopic rod 1101 is rotatably connected to a limiting plate 1102, the lower end of the double-ended telescopic rod 1101 is rotatably connected to an adjusting block 1103, the left end of the adjusting block 1103 is fixedly connected to a thrust spring 1104, and guide members 1105 are provided on the left side of the upper surface of the limiting plate 1102 and the left side of the lower surface of the adjusting block 1103;

[0035] The right ends of the limiting plate 1102 and the adjusting block 1103 can slide through the limiting side plate 8. The mountain surface of the adjusting block 1103 is set as an inclined surface. The end of the thrust spring 1104 away from the adjusting block 1103 is fixedly connected to the inner surface of the limiting side plate 8. The guide 1105 is composed of a rod and a block that slides on the surface of the rod. The rod is fixedly connected to the limiting side plate 8, and the block is fixedly connected to the limiting plate 1102 and the adjusting block 1103.

[0036] By adopting the above technical solution, the lower guard plate is placed on the surface of the limiting base plate 7 for the first time. The lower guard plate, which is pressed down, will use the inclined surface to push the adjusting block 1103 to retract into the limiting side plate 8. At this time, the upper and lower ends of the double-ended telescopic rod 1101 will rotate in opposite directions. That is, the upper end of the double-ended telescopic rod 1101 will push the limiting plate 1102 to extend out of the outer side of the limiting side plate 8 and cover the upper edge of the lower guard plate. This can prevent the lower guard plate with rounded edges from flying out from the top when the limiting side plate 8 is clamped in the future, and also prevent the lower guard plate from falling off from the top due to external force during the detection process.

[0037] The upper and lower ends of the double-ended telescopic rod 1101 can both extend and retract, thereby compensating for the difference when the upper and lower ends of the double-ended telescopic rod 1101 push-pull limiting plate 1102 and adjusting block 1103 move horizontally while the rod itself moves in an arc.

[0038] Working principle: When using the adjustable edge support device for the automotive underbody inspection tool, firstly, the locking pin 1002 is pulled out from the positioning groove 1001. At this time, the locking pin 1002 is no longer limited by the positioning groove 1001, and then the handwheel 9 can drive the bidirectional lead screw 4 to rotate. It can be understood that an eccentric handle can be set on the handwheel 9 to facilitate the rotation of the handwheel 9. The left and right corresponding adjustment seats 5 and the electric telescopic rod 6 form an integral crossbeam through the limiting base plate 7, which will move back and forth under the limitation of the right guide rod 3. This adjusts the spacing between the limiting substrates 7. Once the spacing is adjusted to a certain value, the front and rear edges of the lower guard plate can be placed on the limiting substrates 7. When the lower guard plate is first placed on the surface of the limiting substrates 7, the pressed lower guard plate will use the inclined surface to push the adjusting block 1103 to retract inward into the limiting side plate 8. At this time, the upper and lower ends of the double-ended telescopic rod 1101 will rotate in opposite directions. That is, the upper end of the double-ended telescopic rod 1101 will push the limiting plate 1102 to extend outward from the limiting side plate 8, covering the upper edge of the lower guard plate for blocking. Then, rotate the bidirectional lead screw 4 again. At this time, the adjusting seat 5 will move in opposite directions again. The limiting base plate 7 will drive the limiting side plate 8 to move further in opposite directions. The limiting base plate 7 supports the bottom edge of the lower guard plate, and the limiting side plate 8 clamps the front and rear edges of the lower guard plate, while also serving a positioning function. After the entire lower guard plate is fixed, insert the locking pin 1002 into the nearest corresponding positioning groove 1001. The positioning groove 1001 can then limit the rotation direction of the locking pin 1002 again. The front end passes through the handwheel 9, meaning the locking pin 1002 cannot move, so the handwheel 9 cannot move either, thus locking the bidirectional lead screw 4. The elastic force of the telescopic spring 1004 is transmitted to the locking pin 1002 through the fixing plate 1003, ensuring that the locking pin 1002 will not arbitrarily disengage from the positioning groove 1001. This avoids the situation where the limiting base plate 7 and the limiting side plate 8 move secondarily due to external force after the lower guard plate is fixed, causing the support clamp to loosen. This is the working principle of the adjustable edge support device for the automotive lower guard plate inspection tool.

Claims

1. An adjustable edge support device for an automotive underbody inspection tool, comprising an inspection table (1), characterized in that, The inspection table (1) has grooves (2) at both ends. A bidirectional lead screw (4) is installed in one of the grooves (2). The bidirectional lead screw (4) is connected to both ends of the groove (2) by bearings. One end of the bidirectional lead screw (4) passes through the inspection table (1) and is connected to the drive limiting structure (10). A guide rod (3) is fixedly installed in the other groove (2). The guide rod (3) is fixedly connected to both ends of the groove (2). Two adjusting seats (5) are fitted on both the bidirectional lead screw (4) and the guide rod (3). The two adjusting seats (5) on the bidirectional lead screw (4) are symmetrically arranged as active seats on the bidirectional lead screw. The lever (4) is on both sides and moves with the rotation of the lead screw. The two adjustment seats (5) on the guide rod (3) are symmetrically arranged on both sides of the guide rod (3). The upper surface of the adjustment seats (5) is fixedly installed with electric telescopic rods (6). The upper part of the electric telescopic rods (6) of the active seat and the active seat on the same side is fixedly connected to the limiting base plate (7). The inner side of the upper surface of the limiting base plate (7) is the lower limiting surface. The outer side of the upper surface of the limiting base plate (7) is fixedly connected to the limiting side plate (8). The inner side of the limiting side plate (8) is the side limiting surface. The limiting side plate (8) is provided with an automatic locking structure (11).

2. The adjustable edge support device for an automotive underbody protection plate inspection tool according to claim 1, characterized in that, The adjusting seat (5) is threadedly connected to the bidirectional lead screw (4), and the adjusting seat (5) is slidably connected to the guide rod (3).

3. The adjustable edge support device for an automotive underbody protection plate inspection tool according to claim 1, characterized in that, The drive limiting structure (10) includes a positioning groove (1001) evenly distributed around the outside of the gauge table (1) around the through part of the bidirectional lead screw (4), a locking pin (1002) matching the size of any positioning groove (1001), and a handwheel (9) fixed to one end of the bidirectional lead screw (4), with one end of the locking pin (1002) passing through.

4. The adjustable edge support device for an automotive underbody protection plate inspection tool according to claim 3, characterized in that, The drive limiting structure (10) also includes a fixing plate (1003) fixedly connected to the rear side of the surface of the locking pin (1002). A telescopic spring (1004) is installed on the front surface of the fixing plate (1003). The telescopic spring (1004) is installed between the fixing plate (1003) and the handwheel (9) and is sleeved on the outside of the locking pin (1002).

5. The adjustable edge support device for an automotive underbody protection plate inspection tool according to claim 1, characterized in that, The limiting base plate (7) connects the two corresponding electric telescopic rods (6) and the adjusting seat (5) to form a horizontal integral frame, and the limiting side plate (8) is provided with an automatic locking structure (11).

6. The adjustable edge support device for an automotive underbody protection plate inspection tool according to claim 5, characterized in that, The automatic locking structure (11) includes a double-ended telescopic rod (1101) rotatably connected to the middle of the inner surface of the limiting side plate (8) via a shaft. The upper end of the double-ended telescopic rod (1101) is rotatably connected to a limiting plate (1102), and the lower end of the double-ended telescopic rod (1101) is rotatably connected to an adjusting block (1103). The left end of the adjusting block (1103) is fixedly connected to a thrust spring (1104). Guides (1105) are provided on the left side of the upper surface of the limiting plate (1102) and the left side of the lower surface of the adjusting block (1103).

7. The adjustable edge support device for an automotive underbody protection plate inspection tool according to claim 6, characterized in that, The right ends of the limiting plate (1102) and the adjusting block (1103) can slide through the limiting side plate (8). The upper surface of the adjusting block (1103) is set as an inclined surface. The end of the thrust spring (1104) away from the adjusting block (1103) is fixedly connected to the inner surface of the limiting side plate (8). The guide (1105) is composed of a rod and a block that slides on the surface of the rod. The rod is fixedly connected to the limiting side plate (8), and the block is fixedly connected to the limiting plate (1102) and the adjusting block (1103).

8. The adjustable edge support device for an automotive underbody protection plate inspection tool according to claim 1, characterized in that, The electric telescopic rod (6) is an inner sleeve telescopic structure, and the telescopic length is fixed by tightening with screws.