An automobile energy absorption box aluminum workpiece profile and hole position detection tooling

Abstract

A fixture for detecting the contour and hole positions of aluminum workpieces used in automotive energy-absorbing boxes is provided. The fixture has a back support at the rear, the shape of which matches the workpiece contour. Several top-pressing quick clamps are mounted on the top of the back support. A column is located at the front of the fixture, and a side-pressing quick clamp is mounted on the column. Side contour gauges are mounted on both sides of the fixture, the shapes of which match the workpiece contour. A bottom support seat is located at the matching position on the bottom of the workpiece, and a bottom reference pin is mounted on the bottom support seat. This utility model is specifically used for detecting the outer contour of automotive energy-absorbing boxes, and has the advantages of fast and accurate detection and convenient operation.

Description

Technical Field

[0001] This utility model relates to the field of automotive parts manufacturing and inspection technology, specifically a tooling for detecting the contour and hole positions of aluminum workpieces for automotive energy-absorbing boxes. Background Technology

[0002] The energy-absorbing box, located between the anti-collision beam and the longitudinal beams of the vehicle body, is a key energy-absorbing device in the car's bumper system. When a vehicle is involved in a collision, the energy-absorbing box can effectively collapse to absorb the impact force, thereby protecting the safety of the passengers inside the vehicle. Traditionally, the front crossbeam of the engine compartment is made of steel. With the development of automotive lightweighting, energy-absorbing boxes are gradually being replaced by aluminum alloy materials, especially aluminum profiles. The multi-cavity aluminum profiles provide a certain degree of support rigidity while significantly reducing the overall weight of the energy-absorbing box.

[0003] Inspecting the outer contour of aluminum components in automotive energy-absorbing boxes is typically a tedious process. Because the energy-absorbing box is not a regular shape, various inspection tools are required, such as inspection platforms, feeler gauges, hole gauges, and contour gauges, to inspect multiple surfaces of the aluminum component. This process is complex and consumes a significant amount of time and effort from quality inspectors, especially when the inspection frequency is high, resulting in extremely low inspection efficiency. Therefore, improving the inspection efficiency and reducing the difficulty of inspecting aluminum components in energy-absorbing boxes is a technical problem that needs to be solved by those skilled in the art. Summary of the Invention

[0004] The purpose of this invention is to provide a tooling for detecting the contour and hole positions of aluminum workpieces used in automotive energy-absorbing boxes. It is specifically designed for detecting the outer contour of automotive energy-absorbing boxes and has the advantages of fast and accurate detection and convenient operation.

[0005] To achieve the above objectives, the technical solution of this utility model is as follows:

[0006] A fixture for detecting the contour and hole position of an aluminum workpiece for an automotive energy-absorbing box is provided. The fixture has a back support at the rear, the shape of which matches the contour of the workpiece. Several top-pressing quick clamps are installed on the top of the back support. A column is provided at the front of the fixture, and a side-pressing quick clamp is installed on the column. Side contour plane gauges are provided on both sides of the fixture, and the shape of the contour plane gauges matches the contour of the workpiece. A bottom support seat is provided at the matching position at the bottom of the workpiece, and a bottom reference pin is provided on the bottom support seat.

[0007] The top-pressure quick clamp is used to press the workpiece downwards, while the side-pressure quick clamp is used to press the workpiece backwards. Two bottom reference pins are inserted into the reference machining holes of the workpiece to position it. A profile plane gauge forms a gap with the side edge of the workpiece. Quality inspectors sweep the large and small ends of the standard gauge through the gap. If the large end cannot enter the gap, but the small end can, it proves that the side profile of the workpiece meets the machining requirements.

[0008] The back support block is provided on the inner side of the back support block, and a support ring is provided on the back support block to abut the back of the workpiece. A gap is formed between the inner side of the back support block and the back of the workpiece.

[0009] Quality inspectors swept the large and small ends of the standard gauge through the gap. If the large end could not enter the gap, but the small end could, it proved that the back contour of the workpiece met the processing requirements.

[0010] A support ring is provided on the outer circumference surface of the bottom reference pin on the bottom support base to abut against the bottom surface of the workpiece, and a gap is formed between the upper end surface of the bottom support base and the bottom surface of the workpiece.

[0011] Quality inspectors swept the large and small ends of the standard gauge through the gap. If the large end could not enter the gap, but the small end could, it proved that the bottom contour of the workpiece met the processing requirements.

[0012] The usage method is as follows:

[0013] (1) Place the workpiece on the bottom support base and insert the bottom reference pin into the reference hole of the workpiece;

[0014] (2) Press down the top clamp quickly, and press in the side clamp quickly to tighten;

[0015] (3) The quality inspector uses both ends of the standard gauge to scan the gap between the workpiece and the back support, the gap between the workpiece and the bottom support, and the gap between the workpiece and the side contour plane gauge. If the large end of the standard gauge cannot be inserted into the gap, but the small end of the standard gauge can be inserted into the gap, it proves that the surface contour shape and position (torsion, curvature) of the workpiece meets the processing requirements; otherwise, it proves that the surface contour shape and position of the workpiece is unqualified.

[0016] Advantages of this utility model:

[0017] (1) This utility model is specifically used for the detection of the outer contour and machining holes of the automotive energy-absorbing box. It mainly performs one-time detection of the outer contour and holes of the workpiece, with high detection efficiency.

[0018] (2) This utility model has a compact structure, occupies a small area, is easy to operate and maintain.

[0019] (3) The structure and principle of this utility model can be further expanded to adapt to the detection of other workpieces. Attached Figure Description

[0020] Figure 1 This is an elevation view of the present invention (excluding the workpiece).

[0021] Figure 2 This is another elevation view of the structure of this utility model; (excluding the workpiece).

[0022] Figure 3 This is an elevation view of the present invention; (including the workpiece).

[0023] Figure 4 This is another elevation view of the structure of this utility model; (including the workpiece)

[0024] Figure 5 This is a structural elevation view of the workpiece;

[0025] Figure 6 This is a structural view of the workpiece from another angle.

[0026] The components in the diagram are named as follows: 1-back bracket; 11-top pressure quick clamp; 12-back support block; 2-column; 21-side pressure quick clamp; 3-side contour plane gauge; 4-bottom support base; 41-bottom reference pin. Detailed Implementation

[0027] Example 1

[0028] A fixture for detecting the contour and hole position of an aluminum workpiece for an automotive energy-absorbing box is provided. A back support 1 is provided at the rear of the fixture, and the shape of the back support 1 matches the contour of the workpiece. Several top-pressing quick clamps 11 are installed on the top of the back support 1. A column 2 is provided at the front of the fixture, and a side-pressing quick clamp 21 is provided on the column 2. Side contour plane gauges 3 are provided on both sides of the fixture, and the shape of the contour plane gauges 3 matches the contour of the workpiece. A bottom support seat 4 is provided at the matching position at the bottom of the workpiece, and a bottom reference pin 41 is provided on the bottom support seat 4.

[0029] The back support 1 is provided with a back support block 12 on its inner side, and a support ring is provided on the back support block 12 to abut against the back of the workpiece. A gap is formed between the inner side of the back support 1 and the back of the workpiece.

[0030] A support ring is provided on the outer circumference of the bottom reference pin 41 on the bottom support base 4 to abut against the bottom surface of the workpiece, and a gap is formed between the upper end surface of the bottom support base 4 and the bottom surface of the workpiece.

Claims

1. A fixture for detecting the contour and hole positions of an aluminum workpiece for an automotive energy-absorbing box, characterized in that: A back support (1) is set at the rear of the tooling. The shape of the back support (1) matches the outline of the workpiece. Several top-pressing quick clamps (11) are installed on the top of the back support (1). A column (2) is set at the front of the tooling. A side-pressing quick clamp (21) is set on the column (2). Side contour plane gauges (3) are set on both sides of the tooling. The shape of the contour plane gauges (3) matches the outline of the workpiece. A bottom support seat (4) is set at the matching position at the bottom of the workpiece. A bottom reference pin (41) is set on the bottom support seat (4).

2. The automobile energy absorption box aluminum workpiece profile and hole position detection tooling according to claim 1, characterized in that: The back support block (12) is provided on the inner side of the back support (1), and a support ring is provided on the back support block (12) to be attached to the back of the workpiece. The inner side of the back support (1) forms a gap with the back of the workpiece.

3. The profile and hole detection tooling for an aluminum automotive energy absorbing box according to claim 1, wherein: A support ring is provided on the outer circumference surface of the bottom reference pin (41) on the bottom support base (4) to abut against the bottom surface of the workpiece, and a gap is formed between the upper end surface of the bottom support base (4) and the bottom surface of the workpiece.

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