Tool for detecting flatness of mounting plate of front anti-collision beam of automobile and position degree of processing hole

Abstract

A tool for detecting the flatness of an automobile front anti-collision beam mounting plate and the position degree of a machining hole is characterized in that a base is fixed on a platform, a convex block is arranged on the base, the convex block is matched with a rectangular square hole in a workpiece in position, quick clamps are arranged above four corners of the base respectively, chucks of the quick clamps can press the upper surface of the workpiece, and round through holes are formed in the four corners of the base. The positions of the through holes are matched with machining holes in the four corners of the workpiece, and hole gauges can be inserted into the four machining holes. The device is specially used for detecting the outer contour and the processing hole position of the front collision cross beam mounting plate, and has the advantages of rapid and accurate detection, convenient operation and the like.

Description

Technical Field

[0001] This utility model relates to the field of automotive component manufacturing and inspection technology, specifically a tooling for testing the flatness and machining hole position of a front bumper beam mounting plate. Background Technology

[0002] The front collision beam mounting plate of a car is welded to the energy-absorbing box. The energy-absorbing box is mounted to the vehicle frame through this mounting plate, and the other end of the energy-absorbing box is welded to the anti-collision beam. Its outer contour is rectangular, with round through holes machined at the four corners, raised edges on both sides, and a rectangular mounting hole in the middle. Traditionally, the front collision beam mounting plate is made of stamped steel sheet. With the development of automotive lightweighting, aluminum alloy materials are gradually being used to replace steel materials in car chassis. Aluminum profiles have good formability and machinability, so using aluminum profiles to manufacture front collision beam mounting plates has become a common method.

[0003] Inspecting the outer contour and machined holes of the front collision beam mounting plate is typically cumbersome, requiring various inspection tools such as inspection platforms, feeler gauges, hole gauges, and contour gauges. The process is complex and consumes significant time and effort from quality control personnel, especially when inspections are frequent, resulting in extremely low efficiency. Therefore, improving the inspection efficiency of the front collision beam mounting plate 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 inspecting the flatness and machining hole position of the front bumper beam mounting plate of an automobile. It is specifically used for inspecting the outer contour and machining hole position of the front bumper beam mounting plate, and has the advantages of fast and accurate inspection and convenient operation.

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

[0006] A fixture for inspecting the flatness and machining hole position of a car front bumper beam mounting plate consists of a fixed base on a platform, with protrusions on the base that match the rectangular holes on the workpiece. Quick clamps are installed at the four corners of the base, with the clamps pressing against the upper surface of the workpiece. Circular through holes are installed at the four corners of the base, with the positions of the through holes matching the machining holes at the four corners of the workpiece. Gauges can be inserted into the four machining holes.

[0007] Place the workpiece on the base, ensuring the base size matches the workpiece size and shape. Press the quick clamp downwards to tighten the workpiece, and position the protrusion by embedding it into the square hole of the workpiece. The quality inspector inserts a hole gauge into the machined hole. If the hole gauge can be inserted all the way into the through hole of the base, it proves that the machined hole position is accurate and the size is qualified; otherwise, it indicates that the machined hole position is unqualified.

[0008] The base has support points at its four corners, and there is a gap between the workpiece and the upper surface of the base after the workpiece is placed.

[0009] The fulcrum supports the workpiece at a fixed gap from the base. Then, the quality inspector sweeps both ends of the go / no-go gauge across the gap. If the large end of the go / no-go gauge cannot be inserted into the gap, but the small end can be inserted, it proves that the shape and position (torsion, curvature) of the lower surface of the workpiece meets the processing requirements; otherwise, it proves that the shape and position of the lower surface of the workpiece is unqualified.

[0010] Several crossbeams are provided above the base. The two ends of the crossbeams are supported by crossbeam brackets and fixed by screw bolts threaded through them. There is a gap between the lower surface of the crossbeam and the upper surface of the workpiece.

[0011] Quality inspectors use both ends of the go / no-go gauge to sweep across the gap. If the large end of the go / no-go gauge cannot be inserted into the gap, but the small end can be inserted into the gap, it proves that the upper surface contour (torsion, curvature) of the workpiece meets the processing requirements; otherwise, it proves that the upper surface contour of the workpiece is unqualified.

[0012] Advantages of utility models

[0013] (1) This utility model is specifically used for the detection of the outer contour and machining hole positions of the front anti-collision beam mounting plate of automobiles. It can simultaneously detect the outer contour and machining hole positions of the workpiece at one time, with high detection efficiency.

[0014] (2) This utility model has a compact structure, occupies a small area, is easy to operate and maintain.

[0015] (3) The structure and principle of this utility model can be further expanded to adapt to the detection of other workpieces. Attached Figure Description

[0016] Figure 1 This is an elevation view of the present invention; (including the workpiece).

[0017] Figure 2 for Figure 1 Enlarged structural diagram at point I;

[0018] Figure 3 This is another elevation view of the structure of this utility model; (excluding the workpiece).

[0019] Figure 4 for Figure 3 Enlarged structural diagram at point II;

[0020] Figure 5 This is a top view of the workpiece.

[0021] The components in the diagram are named as follows: 1-base; 2-quick clamp; 3-gauge; 4-beam support; 5-beam; 6-workpiece; 7-fulcrum; 8-protrusion. Detailed Implementation

[0022] Example 1

[0023] A fixture for inspecting the flatness and machining hole position of a car front bumper beam mounting plate includes a fixed base 1 on a platform, with protrusions 8 on the base 1 that match the position of rectangular holes on the workpiece 6. Quick clamps 2 are respectively installed above the four corners of the base 1, and the clamps of the quick clamps 2 can press the upper surface of the workpiece 6. Circular through holes are provided at the four corners of the base 1, and the positions of the through holes match the machining holes at the four corners of the workpiece 6. Hole gauges 3 can be inserted into the four machining holes.

[0024] The base 1 has four corner supports 7, and there is a gap between the workpiece 6 and the upper surface of the base 1 after the workpiece 6 is placed.

[0025] Several crossbeams 5 are arranged above the base 1. The two ends of the crossbeams 5 are supported by crossbeam brackets and fixed by screw bolts threaded through them. There is a gap between the lower surface of the crossbeams 5 and the upper surface of the workpiece 6.

Claims

1. A fixture for inspecting the flatness and machining hole position of a front bumper beam mounting plate for automobiles, characterized in that: A fixed base (1) is provided on the platform. A protrusion (8) is provided on the base (1). The position of the protrusion (8) matches the rectangular hole on the workpiece (6). Quick clamps (2) are provided above the four corners of the base (1). The clamps of the quick clamps (2) can press the upper surface of the workpiece (6). Circular through holes are provided at the four corners of the base (1). The position of the through holes matches the machining holes at the four corners of the workpiece (6). Hole gauges (3) can be inserted at the four machining holes.

2. The fixture for detecting the flatness and machining hole position of the automotive front bumper beam mounting plate according to claim 1, characterized in that: The base (1) has four corner supports (7) respectively, and there is a gap between the workpiece (6) and the upper surface of the base (1) after the workpiece (6) is placed.

3. The fixture for detecting the flatness and machining hole position of the automotive front bumper beam mounting plate according to claim 1, characterized in that: Several crossbeams (5) are provided above the base (1). The two ends of the crossbeams (5) are supported by crossbeam brackets and fixed by screw bolts threaded through them. There is a gap between the lower surface of the crossbeams (5) and the upper surface of the workpiece (6).

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