A tool for inspecting the front panel of a car's rear crossbeam.

Abstract

This utility model discloses a front panel inspection fixture for a car rear crossbeam, characterized by comprising a base, a platform, an inspection positioning seat, a quick-clamping device, and a flipping inspection block. The platform is disposed on the top surface of the base, and the inspection positioning seat, quick-clamping device, and flipping inspection block are all disposed on the platform. Multiple quick-clamping devices are distributed on both sides of the inspection positioning seat for clamping the middle of the product. Two flipping inspection blocks are distributed at both ends of the inspection positioning seat for inspecting the arc surfaces at both ends of the product. The top surface of the inspection positioning seat has a contour positioning groove, and the bottom surface of the contour positioning groove is provided with a first positioning shaft and a second positioning shaft. The bottom of the contour positioning groove has multiple inspection pin holes. The platform is equipped with mounting hole movable pins and go / no-go gauges. The advantages of this utility model include: simple fixture structure, convenient clamping and positioning, comprehensive inspection of key dimensions such as the product's surface, hole positions, and contours, and high inspection efficiency.

Description

Technical Field

[0001] This utility model relates to the field of inspection tools, specifically to an inspection tool for the front panel of a car rear crossbeam. Background Technology

[0002] The rear crossbeam assembly is a critical component of the vehicle body structure, crucial for ensuring overall body strength, torsional rigidity, and rear-end collision safety. The front plate of the rear crossbeam, a core stamped part within the assembly, directly impacts the assembly quality and welding precision of its surface contours, hole positions, and flange dimensions, affecting its connection to other components such as the rear crossbeam and longitudinal beams. Dimensional deviations in this part can lead to assembly difficulties, welding gaps, and compromised vehicle aesthetics; more serious issues may weaken the overall structural strength of the rear crossbeam assembly, creating potential safety hazards.

[0003] Currently, in the automotive parts manufacturing process, the quality inspection of stamped parts mainly relies on the following two methods:

[0004] Coordinate Measuring Machine (CMM) Inspection: This method utilizes a CMM to perform contact or non-contact scanning of the key features of a part, comparing the acquired data with the theoretical numerical model for analysis. While CMMs offer extremely high measurement accuracy and flexibility, the inspection process is time-consuming, requires highly skilled operators, and is expensive. More importantly, it cannot achieve rapid, full inspection of parts on the production line; it is typically only suitable for sampling or first-piece inspection, making it difficult to achieve 100% quality control over every part on the production line, thus posing a risk of defective products flowing to the next process.

[0005] Traditional specialized inspection tools: While some existing simple inspection tools can achieve rapid inspection, they typically have the following limitations when dealing with the relatively complex structure of the rear crossbeam front plate:

[0006] Limited functionality: It often only targets a few features (such as some mounting holes) for inspection, and cannot comprehensively and synchronously inspect the complex spatial curved surfaces of parts, multiple flange contours, and all key hole positions.

[0007] Inaccurate positioning: An unreasonable positioning scheme may cause slight deformation of the parts due to gravity or clamping force during the inspection process, resulting in distorted measurement data that cannot truly reflect the quality status of the parts in their free state.

[0008] Therefore, there is an urgent need in this field for a special inspection tool for the front panel of the rear crossbeam of automobiles, which can overcome the above-mentioned defects of the prior art and realize rapid, accurate, intuitive and comprehensive online inspection of all key dimensions of the part (including surface, hole position, contour, etc.), thereby effectively improving the production cycle. Summary of the Invention

[0009] To address the shortcomings of the existing technology, this utility model provides a front panel inspection tool for automotive rear crossbeams, which has a simple structure, is easy to operate, and can quickly detect surfaces, holes, and contours.

[0010] To achieve the above objectives, the present invention adopts the following technical solution:

[0011] A front panel inspection fixture for a car rear crossbeam, characterized in that it includes a base, a platform, a detection positioning seat, a quick-clamping device, and a flipping detection block. The platform is disposed on the top surface of the base. The detection positioning seat, quick-clamping device, and flipping detection block are all disposed on the platform. Multiple quick-clamping devices are distributed on both sides of the detection positioning seat for clamping the middle of the product. Two flipping detection blocks are distributed at both ends of the detection positioning seat for inspecting the arc surfaces at both ends of the product. The top surface of the detection positioning seat has a contour positioning groove, and the bottom surface of the contour positioning groove is provided with a first positioning shaft and a second positioning shaft. The bottom of the contour positioning groove has multiple detection pin holes. The platform is provided with mounting hole movable pins and go / no-go gauges.

[0012] Furthermore, the first positioning shaft is cylindrical, and the second positioning shaft is rhomboid.

[0013] Furthermore, the quick-clamp pressing device includes a first lifting seat, a quick clamp, and a pressure head. The first lifting seat is disposed on the platform, the quick clamp is disposed on the first lifting seat, and the pressure head is disposed on the pressure arm of the quick clamp. The pressure head is located above the contour positioning groove. The pressure head is a rubber pressure head, and a pad corresponding to the pressure head is disposed on the bottom surface of the contour positioning groove.

[0014] Furthermore, the flip detection block includes a second heightening seat, a flip positioning groove, a flip positioning block, and an end detection block. The second heightening seat is disposed on the platform, the flip positioning groove is disposed on the top surface of the second heightening seat, one end of the flip positioning block is hinged to one end of the flip positioning groove, and the end detection block is connected to the other end of the flip positioning block. The pressing working surface of the end detection block is an arc-shaped surface. The flip positioning block is provided with a locking screw, and the flip positioning groove has a locking thread hole corresponding to the locking screw.

[0015] The advantages of this utility model include: the fixture has a simple structure, is easy to clamp and position, and can comprehensively inspect key dimensions such as the surface, hole position, and contour of the product, with high inspection efficiency. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2This is a schematic diagram of an embodiment of the present invention. Detailed Implementation

[0018] The present invention will be further described in detail below with reference to specific embodiments and accompanying drawings.

[0019] One such Figure 1-2 The automotive rear crossbeam front panel inspection fixture shown includes a base 1, a platform 2, an inspection positioning seat 3, a quick-clamping device 4, and a flipping inspection block 5. The platform 2 is located on the top surface of the base 1, and the inspection positioning seat 3, quick-clamping device 4, and flipping inspection block 5 are all located on the platform 2. There are three quick-clamping devices, distributed on both sides of the inspection positioning seat 3, used to clamp the middle of the product. The quick-clamping device 4 includes a first lifting seat 41, a quick clamp 42, and a pressure head 43. The first lifting seat 41 is located on the platform 2, the quick clamp 42 is located on the first lifting seat 41, and the pressure head 43 is located on the pressure arm of the quick clamp 42, and the pressure head 43 is located above the contour positioning groove 6. The pressure head 43 is a rubber pressure head, and the bottom surface of the contour positioning groove 6 is provided with a pad 44 corresponding to the pressure head 43. The three pressure heads 43 are distributed in a triangle.

[0020] There are two flip detection blocks 5, which are distributed at both ends of the detection positioning seat 3. They are used to detect the arc surfaces at both ends of the product. The flip detection block 5 includes a second lifting seat 51, a flip positioning groove 52, a flip positioning block 53, and an end detection block 54. The second lifting seat 51 is set on the platform 2. The flip positioning groove 52 is set on the top surface of the second lifting seat 51. One end of the flip positioning block 53 is hinged to one end of the flip positioning groove 52. The end detection block 54 is connected to the other end of the flip positioning block 53. The pressing working surface of the end detection block 54 is an arc surface. The flip positioning block 53 is provided with a locking screw 55. The flip positioning groove 52 has a locking thread hole corresponding to the locking screw 55.

[0021] The top surface of the detection positioning seat 3 has a contour positioning groove 6, and the bottom surface of the contour positioning groove 6 is provided with a first positioning shaft 7 and a second positioning shaft 8. The first positioning shaft 7 is cylindrical and the second positioning shaft 8 is rhomboid, which are used to position two parallel shaft holes on the product.

[0022] The bottom of the contour positioning groove 6 has multiple detection pin holes, and the platform 2 has a mounting hole movable pin 9 and a go / no-go gauge 10.

[0023] The detection method of this utility model is as follows: the product is positioned in the contour positioning groove 6, and then the product is pressed by the quick clamping device 4. The movable pin 9 of the mounting hole is inserted into the detection pin hole to detect the position accuracy of the mounting hole on the product. Then, the go / no-go gauge 10 is inserted into the gap between the edge of the product and the contour positioning groove 6 to determine whether the shape and contour of the product meet the dimensional requirements. Finally, the flip detection block 5 is flipped so that the end detection block 54 is flipped and positioned to detect whether the arc surfaces at both ends of the product meet the dimensional requirements.

[0024] The technical solutions provided by the embodiments of this utility model have been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of the embodiments of this utility model. The description of the above embodiments is only for helping to understand the principles of the embodiments of this utility model. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the embodiments of this utility model. Therefore, the content of this specification should not be construed as a limitation of this utility model.

Claims

1. A pre-fabricated inspection tool for the front panel of a car's rear crossbeam, characterized in that: The device includes a base (1), a platform (2), a detection positioning seat (3), a quick-clamping device (4), and a flip detection block (5). The platform (2) is located on the top surface of the base (1). The detection positioning seat (3), the quick-clamping device (4), and the flip detection block (5) are all located on the platform (2). There are multiple quick-clamping devices, which are distributed on both sides of the detection positioning seat (3) and are used to press the middle of the product. There are two flip detection blocks (5), which are distributed at both ends of the detection positioning seat (3) and are used to detect the arc surfaces at both ends of the product. The top surface of the detection positioning seat (3) has a contour positioning groove (6). The bottom surface of the contour positioning groove (6) is provided with a first positioning shaft (7) and a second positioning shaft (8). The bottom of the contour positioning groove (6) has multiple detection pin holes. The platform (2) is provided with a mounting hole movable pin (9) and a go / no-go gauge (10).

2. The automotive rear crossbeam front panel inspection fixture according to claim 1, characterized in that: The first positioning shaft (7) is cylindrical, and the second positioning shaft (8) is rhomboid.

3. The automotive rear crossbeam front panel inspection fixture according to claim 1, characterized in that: The quick clamping device (4) includes a first lifting seat (41), a quick clamp (42), and a pressure head (43). The first lifting seat (41) is disposed on the platform (2). The quick clamp (42) is disposed on the first lifting seat (41). The pressure head (43) is disposed on the pressure arm of the quick clamp (42) and is located above the contour positioning groove (6). The pressure head (43) is a rubber pressure head. The bottom surface of the contour positioning groove (6) is provided with a pad (44) corresponding to the pressure head (43).

4. The automotive rear crossbeam front panel inspection fixture according to claim 1, characterized in that: The flip detection block (5) includes a second heightening seat (51), a flip positioning groove (52), a flip positioning block (53), and an end detection block (54). The second heightening seat (51) is disposed on the platform (2). The flip positioning groove (52) is disposed on the top surface of the second heightening seat (51). One end of the flip positioning block (53) is hinged to one end of the flip positioning groove (52). The end detection block (54) is connected to the other end of the flip positioning block (53). The working surface of the end detection block (54) is an arc-shaped surface. A locking screw (55) is disposed on the flip positioning block (53). The flip positioning groove (52) has a locking thread hole corresponding to the locking screw (55).

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