Automobile sheet metal part surface contour detection mechanism

Abstract

The utility model relates to the technical field of sheet metal part detection, in particular to an automobile sheet metal part surface contour detection mechanism which comprises a bottom plate, a base body is installed in the middle of the bottom plate, clamping mechanisms are installed on the left side, the right side and the front side of the bottom plate, the clamping mechanisms are arranged around the base body, and a sheet metal part is placed on the base body. The clamping mechanism is used for positioning and clamping a sheet metal part on the base substrate, the positioning mechanism is arranged on the upper side of the base substrate and is used for positioning the sheet metal part, and the detection mechanism is arranged on the rear side of the base substrate and is used for detecting the surface contour of the sheet metal part. And after positioning and clamping are performed through the positioning mechanism and the clamping mechanism, the detection mechanism is directly inserted into a measurement gap value through a detection pin, so that the surface contour is detected and judged, and the detection convenience is greatly improved.

Description

Technical Field

[0001] This utility model relates to the field of sheet metal inspection technology, and in particular to a surface contour inspection mechanism for automotive sheet metal parts. Background Technology

[0002] Currently, automotive body manufacturing technology typically involves numerous welding mating surfaces. Most body components are stamped parts with highly irregular shapes. Before welding, each part must undergo rapid inspection to ensure it meets relevant dimensional and technical requirements. While some workpiece edges are inspected using custom-made fixtures based on contours, certain surfaces on the formwork are also mating surfaces and cannot be inspected using contouring. In most cases, this is done by flipping a clamp and checking the gap between the clamp and the surface to assess surface contour accuracy. However, for some special surfaces with positioning references or other obstructions, this method cannot achieve rapid inspection. Traditional inspection methods generally have the following drawbacks: 1. Sufficient space is required in the surrounding area to place the clamps, columns, and other mechanisms; 2. The clamp mechanism needs to be assembled, adjusted, and calibrated; 3. During repeated use, the clamp connections are prone to loosening and deformation, affecting accuracy. This impacts the usability of the fixtures and reduces inspection efficiency. Utility Model Content

[0003] In view of this, the purpose of this utility model is to propose a surface contour inspection mechanism for automotive sheet metal parts, so as to solve the problems of insufficient space and inconvenience of use of existing inspection tools.

[0004] To achieve the above objectives, this utility model provides a surface contour detection mechanism for automotive sheet metal parts, including a base plate, a base body installed in the middle of the base plate, clamping mechanisms installed on the left, right, and front sides of the base plate, the clamping mechanisms being arranged around the base body, the sheet metal part being placed on the base body, the clamping mechanisms positioning and clamping the sheet metal part on the base body, a positioning mechanism being provided on the upper side of the base body for positioning the sheet metal part, and a detection mechanism being provided on the rear side of the base body for detecting the surface contour of the sheet metal part.

[0005] A further improvement is that the clamping mechanism includes a clamping seat, on which clamps are mounted, and the sheet metal parts are clamped by flipping the clamps.

[0006] A further improvement is that the positioning mechanism includes a reference pin, and a positioning hole is provided on the surface of the base body. The reference pin is adapted to the positioning hole, and after passing through the part hole, the reference pin is inserted into the positioning hole to position the sheet metal part.

[0007] A further improvement is that the detection mechanism includes a detection pin, and a detection hole is provided through the base. The detection pin is inserted into the detection hole and contacts the sheet metal part, and detection is performed according to the insertion distance.

[0008] A further improvement is that a limit plate is added to the threaded connection on the detection pin.

[0009] A further improvement is that the detection pin has an installation groove, in which a measuring rod is slidably installed. A sliding groove is provided on the side of the detection pin, and the installation groove and the sliding groove are connected. An indicator block is slidably installed in the sliding groove. The measuring rod and the indicator block are fixedly connected. A spring connects the inner wall of the installation groove and the measuring rod.

[0010] A further improvement is that the test pins are equipped with graduation lines.

[0011] The beneficial effects of this utility model are as follows: By setting a base for placing sheet metal parts, a reference pin positions the sheet metal parts, and clamps hold the sheet metal parts. After the sheet metal parts are fixed, a detection pin is inserted into the detection hole, and a limiting plate is attached to the side of the detection hole for limiting. The measuring rod first contacts the sheet metal parts, and as the detection pin extends, the measuring rod gradually retracts into the detection pin. The measuring rod drives the indicator block to move to the designated position, and the detection result is determined based on the movement position of the indicator block. Furthermore, a scale line is set, and by comparing the scale line, the gap value can be quickly measured, thereby detecting and judging the surface contour, reducing the use of gap rulers, and greatly improving the convenience of inspection. Attached Figure Description

[0012] To more clearly illustrate the technical solutions in this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only for this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0013] Figure 1 This is a schematic diagram of the structure of an embodiment of the present utility model;

[0014] Figure 2 This is a schematic diagram of the structure of an embodiment of the present utility model;

[0015] Figure 3 This is a schematic diagram of the cross-sectional structure of the detection pin in an embodiment of this utility model.

[0016] The diagram is marked as follows:

[0017] 1. Base plate; 2. Base body; 3. Clamping seat; 4. Clamping clamp; 5. Reference pin; 6. Detection pin; 7. Limiting plate; 8. Mounting groove; 9. Measuring rod; 10. Slide groove; 11. Indicator block; 12. Spring. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments.

[0019] It should be noted that, unless otherwise defined, the technical or scientific terms used in this utility model should have the ordinary meaning understood by one of ordinary skill in the art to which this utility model pertains. The terms "first," "second," and similar terms used in this utility model do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "comprising" or "including" mean that the element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0020] like Figure 1 , Figure 2 As shown, this embodiment provides a surface contour detection mechanism for automotive sheet metal parts, including a base plate 1, a base body 2 installed in the middle of the base plate 1, the surface of the base body 2 having a contour-following structure, the sheet metal part being placed on the base body 2, a positioning mechanism being provided on the upper side of the base body 2, the positioning mechanism positioning the sheet metal part, the positioning mechanism including a reference pin 5, a positioning hole being opened on the surface of the base body 2, the reference pin 5 being adapted to the positioning hole, the reference pin 5 passing through the part hole and being inserted into the positioning hole to position the sheet metal part.

[0021] Clamping mechanisms are installed on the left and right sides and the front side of the base plate 1. The clamping mechanisms are arranged around the base body 2. The clamping mechanisms position and clamp the sheet metal parts on the base body 2. The clamping mechanisms include clamping seats 3, and clamps 4 are installed on the clamping seats 3. The sheet metal parts are clamped by flipping the clamps 4.

[0022] like Figure 2 , Figure 3As shown, a detection mechanism is provided on the rear side of the base body 2 to detect the surface contour of the sheet metal part. The detection mechanism includes a detection pin 6, and a detection hole is opened through the base body 2. The detection pin 6 is inserted into the detection hole and contacts the sheet metal part, and the detection is performed according to the insertion distance. A limit plate 7 is threadedly connected to the detection pin 6, which limits the insertion depth of the detection pin 6. The limit plate 7 is adjusted in position according to the detection requirements by rotating on the detection pin 6 via the thread. The detection pin 6 has an installation groove 8, in which a measuring rod 9 is slidably installed. The end of the measuring rod 9 extends through one end of the detection pin 6. The side of the detection pin 6 has a sliding groove 10, which is connected to the installation groove 8. An indicator block 11 is slidably installed in the sliding groove 10. The measuring rod 9 and the indicator block 11 are fixedly connected. A spring 12 is connected between the inner wall of the installation groove 8 and the measuring rod 9. During the detection process of the detection pin 6, the measuring rod 9 first contacts the sheet metal part. The sheet metal part squeezes the measuring rod 9 and retracts it into the detection pin 6. After the detection pin 6 is inserted into place, the result can be quickly and clearly determined by observing whether the indicator block 11 has moved to the designated position. This improves the convenience of the detection.

[0023] Each of the six test pins is equipped with scale lines, which allow for clearer adjustments and improve ease of use.

[0024] During inspection, the sheet metal part is placed on the base 2, and the reference pin 5 is inserted for positioning. The flip clamp 4 is used for clamping. After the sheet metal part is positioned and clamped stably, the inspection pin 6 is inserted into the inspection hole. The measuring rod 9 contacts the sheet metal part and is squeezed and retracts into the inspection pin 6. When the limiting plate 7 is attached to the outside of the inspection hole, the inspection pin 6 is inserted into place. The movement position of the indicator block 11 is observed, and the gap value is measured by referring to the scale line. The surface contour is then inspected and judged, which greatly improves the convenience and efficiency of inspection.

[0025] Those skilled in the art should understand that the discussion of any of the above embodiments is merely exemplary and is not intended to imply that the scope of this utility model is limited to these examples; within the framework of this utility model, the technical features of the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations of the different aspects of this utility model as described above, which are not provided in the details for the sake of brevity. Any omissions, modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A surface contour detection mechanism for automotive sheet metal parts, comprising a base plate (1), characterized in that, A base body (2) is installed in the middle of the base plate (1). Clamping mechanisms are installed on the left and right sides and the front side of the base plate (1). The clamping mechanisms are arranged around the base body (2). Sheet metal parts are placed on the base body (2). The clamping mechanisms position and clamp the sheet metal parts on the base body (2). A positioning mechanism is provided on the upper side of the base body (2). The positioning mechanism positions the sheet metal parts. A detection mechanism is provided on the rear side of the base body (2). The detection mechanism detects the surface contour of the sheet metal parts.

2. The automotive sheet metal part surface contour detection mechanism according to claim 1, characterized in that, The clamping mechanism includes a clamping seat (3) and a clamp (4) is installed on the clamping seat (3). The sheet metal parts are clamped by flipping the clamp (4).

3. The automotive sheet metal part surface contour detection mechanism according to claim 1, characterized in that, The positioning mechanism includes a reference pin (5), and a positioning hole is provided on the surface of the base body (2). The reference pin (5) is adapted to the positioning hole. After passing through the part hole, the reference pin (5) is inserted into the positioning hole to position the sheet metal part.

4. The automotive sheet metal part surface contour detection mechanism according to claim 1, characterized in that, The detection mechanism includes a detection pin (6), and a detection hole is provided through the base body (2). The detection pin (6) is inserted into the detection hole and contacts the sheet metal part. The detection is performed according to the insertion distance.

5. The automotive sheet metal part surface contour detection mechanism according to claim 4, characterized in that, The detection pin (6) is threadedly connected to the limit plate (7).

6. The automotive sheet metal part surface contour detection mechanism according to claim 5, characterized in that, An installation groove (8) is provided in the detection pin (6), and a measuring rod (9) is slidably installed in the installation groove (8). A sliding groove (10) is provided on the side of the detection pin (6). The installation groove (8) and the sliding groove (10) are connected. An indicator block (11) is slidably installed in the sliding groove (10). The measuring rod (9) and the indicator block (11) are fixedly connected. A spring (12) is connected between the inner wall of the installation groove (8) and the measuring rod (9).

7. The automotive sheet metal part surface contour detection mechanism according to claim 6, characterized in that, The detection pin (6) is provided with scale lines.

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