Leakage-proof punching hole detection device on sheet metal stamping part

Abstract

The utility model discloses a leak-proof punching hole detection device on a sheet metal stamping part, the detection device is arranged on a clamping station of the stamping part and corresponds to the position of a punching hole on the stamping part, and when the punching hole of the stamping part is not formed, the detection device prevents the stamping part from being assembled with an assembling station. The detection device comprises a detection block which is arranged in the clamping station and corresponds to the punching hole in position, and the detection block is provided with a detection column which can be embedded into the punching hole when the stamping part is assembled into the clamping station. According to the detection device, the assembly operation of stamping parts with enough punching forming quantity cannot be blocked when the stamping parts are stamped; and when the number of the assembly holes is lost, when the stamping part is assembled, due to the fact that the assembly holes are blocked, the detection device cannot pass through the assembly holes, assembly of the stamping part is blocked, detection of the leakage holes of the stamping part is achieved, and therefore the problem that large influences exist in later final assembly is effectively solved.

Description

Technical Field

[0001] The present application relates to the technical field of leak-proof hole detection on sheet metal stamping parts, and in particular to a leak-proof punching hole detection device on sheet metal stamping parts. Background Art

[0002] Automotive sheet metal stampings are a crucial component of automotive parts and are widely used in a variety of applications, including vehicle bodies, chassis, interiors, and accessories. They are primarily produced by placing sheet metal into a press and applying pressure using a die or punch, causing it to plastically deform, thereby forming parts of the desired shape and size. Sheet metal stampings offer advantages such as high production efficiency, high precision, low cost, and environmental friendliness. Sheet metal stamping technology allows for the efficient production of large quantities of products, meeting the needs of modern industrialized production. Its high processing precision ensures product quality and stability, while its relatively low cost helps improve a company's production efficiency and competitiveness. The environmentally friendly production process complies with the requirements of sustainable development.

[0003] Assembly holes are crucial elements in automotive sheet metal stampings, primarily used to mount chassis, interior trim, and accessories on the vehicle body. Assembly holes must be positioned accurately to ensure smooth assembly. Due to the unique design and complexity of assembly component connections, a single sheet metal stamping typically requires at least one assembly hole. See the attached instructions for details. Figure 1 The figure shows a sheet metal stamping used in an automotive application. It features two mounting holes and one threaded hole. After the mounting and threaded holes are machined, the stamping typically undergoes further processing. This involves clamping the stamping in a specific station for operations such as welding and bonding accessories, and polishing and grinding the surface.

[0004] In the front stamping process of stamping parts, there may be factors such as incorrect installation of the stamping die, wear or loss of the punching head on the stamping die, which may cause the assembly holes to not be punched. Figure 2 There is only one assembly hole and threaded hole in the stamping, and one assembly hole is missing. This will affect the smooth assembly of the stamping during the completion of the stamping and the subsequent assembly process, which will cause the stamping to be an unqualified product. It not only needs to be returned to the factory for repair, increasing logistics costs, but also affects the production efficiency of the assembly line operation. Summary of the Invention

[0005] In response to the above-mentioned problems, the present application aims to provide a leak-proof punching detection device on sheet metal stamping parts. When the number of assembly holes is missing, the assembly holes are blocked during the assembly of the stamping parts, so that the detection device cannot pass through, thereby blocking the assembly of the stamping parts and realizing the detection of leaking holes in the stamping parts.

[0006] In order to achieve the above-mentioned purpose, the technical solution adopted in this application is as follows: a leakage-proof punching detection device on a sheet metal stamping part, wherein the stamping part has a clamping station, and the clamping station has a plurality of positioning blocks that contact the stamping part at different positions, and is characterized in that: the detection device is arranged on the clamping station and corresponds to the punching position on the stamping part, and when the punching of the stamping part is not formed, the detection device blocks the stamping part from being assembled with the assembly station.

[0007] Preferably, the detection device includes a detection block arranged in the clamping station corresponding to the punching position, and the detection block is provided with a detection column that can be embedded in the punching when the stamping part is assembled to the clamping station.

[0008] Preferably, the detection column is configured as a cone structure.

[0009] Preferably, a support rod is provided on the detection block and at the center of the detection column. The detection column is divided into single columns along the circumferential direction, each of which is hinged to the support rod, and a torsion spring is provided at the hinge of each single column.

[0010] The beneficial effects of the present application are as follows: the detection device will not block the assembly operation of stamping parts with a sufficient number of punching holes; however, when the number of assembly holes is missing, the assembly holes are blocked during the assembly of the stamping parts, so that the detection device cannot pass through, thereby blocking the assembly of the stamping parts and detecting the leaking holes in the stamping parts, thereby effectively solving the greater impact in the later assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 This is a diagram of the stamping structure of this application.

[0012] Figure 2 For this application, one punch hole is missing from the stamping.

[0013] Figure 3 This is a diagram showing the detection device set up in the clamping station of the stamping parts of this application.

[0014] Figure 4 For this application, the stamping parts are assembled in Figure 3 The clamping station and detection device are shown in the figure.

[0015] Figure 5 This is a diagram showing the detection column of this application being passed through the punched hole.

[0016] Figure 6 For the purpose of this application, the detection column is set to a conical structure as shown in the figure.

[0017] Figure 7 This is a diagram showing the up and down displacement deviation of the stamping part on the conical structure detection column of this application.

[0018] Figure 8 For the present application, the detection column is configured as a structural diagram of multiple hinged single columns.

[0019] Figure 9 This is a diagram showing the positioning of the single column of this application against the punched hole wall.

[0020] Figure 10 A physical illustration of a detection column installed at the clamping station of the stamping part for this application.

[0021] Figure 11 This is a diagram showing the detection column passing through the punching hole when the stamped part of this application is clamped in the clamping station.

[0022] In the figure: 1b-threaded hole. DETAILED DESCRIPTION

[0023] In order to enable ordinary technicians in this field to better understand the technical solution of the present application, the technical solution of the present application is further described below in conjunction with the accompanying drawings and embodiments.

[0024] Refer to the attached Figures 1 to 9 The device for detecting leak-proof punching on a sheet metal stamping part is shown in the figure. The stamping part 1 has a clamping station. The clamping station has a plurality of positioning blocks 2 that contact the stamping part 1 at different positions. Figure 3 As shown, multiple positioning blocks 2 are set according to the shape specifications of the stamping parts, which can quickly realize the positioning and clamping of the stamping parts during the reprocessing of the stamping parts. In order to check whether the assembly holes on the stamping parts are punched in sufficient numbers and the position accuracy during the processing of the stamping parts, and to avoid a major impact in the later assembly process, the present application is provided with a detection device, such as Figure 3 As shown, it is set on the clamping station and corresponds to the position of the punching hole 1a on the stamping part 1. When the punching hole 1a of the stamping part 1 is not formed, the detection device blocks the assembly of the stamping part 1 with the assembly station. That is, a detection device corresponding to the punching position is set in the assembly station of the stamping part. When the number of punching holes is sufficient, the stamping part can be smoothly assembled on the assembly station, and its assembly operation will not be blocked by the detection device; when the number of assembly holes is missing, when the stamping part is assembled, the assembly hole position is blocked, so that the detection device cannot pass through, and then the assembly of the stamping part is blocked, so that the stamping part cannot be smoothly assembled on the assembly hole position, and then it is determined that there is a lack of punching number. Unqualified products can be found in the current processing state, that is, the quality inspection of the punching is carried out at the source of the stamping part processing, thereby effectively solving the greater impact in the later assembly.

[0025] Specifically, such as Figure 3-5As shown, the detection device includes a detection block 3 arranged in the clamping station corresponding to the position of the punching hole 1a, and a detection column 4 is provided on the detection block 3, which can be embedded in the punching hole 1a when the stamping part 1 is assembled in the clamping station. When the stamping part is assembled, if the number of punching holes is sufficient, the detection column 4 can penetrate into the assembly hole when the stamping part is assembled, without obstructing the assembly of the stamping part, thereby realizing the smooth assembly of the stamping part; and when the number of assembly holes is missing, the detection column 4 cannot penetrate smoothly when the stamping part is assembled because the stamping part surface does not have assembly holes, thereby obstructing the assembly of the stamping part, thereby determining that the number of punching holes is missing, and realizing a rapid detection operation of leak-proof punching.

[0026] When the number of assembly holes is sufficient, in order to facilitate the smooth insertion of the detection column 4 into the assembly holes and improve the assembly and processing efficiency of the stamping parts, as shown in FIG. Figure 6 As shown, preferably, the detection column 4 is configured as a cone structure. The outer diameter of the detection column 4 of the cone structure gradually decreases toward its outer end, so that the smaller end facilitates its smooth insertion into the assembly hole of the stamping part (stamping parts are subject to instability during manual movement and assembly), thereby facilitating the smooth assembly of the stamping part and improving the efficiency of continuous assembly processing.

[0027] Stamping parts are usually of heterogeneous structure, so the fixture structure adapted to their positioning and assembly is complex. Long-term clamping operation will cause wear of the fixture, affecting the clamping positioning accuracy and processing accuracy of the stamping parts. Figure 7 As shown, in order to further improve the positioning accuracy of the stamping parts after clamping, as shown in Figure 8-9 As shown, a support rod 31 is provided on the detection block 3 and at the center of the detection column 4. The detection column 4 is divided into individual columns 41 along the circumferential direction, each of which is hinged on the support rod 31. A torsion spring (not shown in the figure) is provided at the hinge of each individual column 41. The torsion spring drives each individual column 41 to rotate as shown in FIG. Figure 9 The center arc arrow direction deflects, and when the stamping part is clamped, the torsion spring drives the single column 41 to deflect unidirectionally, so that the outer diameter of the end of the detection column 4 composed of multiple single columns 41 will still be smaller than the diameter of the assembly hole, thereby facilitating the insertion of the assembly hole during the assembly of the stamping part, and when inserted into the tail end of the single column 41, the wall of the assembly hole will contact the single column 41, and the single column 41 is driven to rotate by the torsion spring, and it will be tightly attached to the wall of the assembly hole, thereby achieving close contact between the multiple single columns 41 and the assembly hole, thereby eliminating the assembly gap between the detection column 4 and the assembly hole, and once again realizing the stable clamping and positioning of the stamping part through the clamping station.

[0028] The principle of this application is as follows: when detecting leak-proof holes of sheet metal stamping parts, first, a detection block 3 and a detection column 4 corresponding to the punching position are set on the clamping station of the stamping part, and the detection column 4 is a plurality of divided single columns 41 and is hinged on the support rod 31 of the detection block 3. When performing leak-proof hole detection, the stamping part is assembled on the clamping station: when the number of punching forming is sufficient, the detection column 4 can penetrate into the assembly hole when the stamping part is assembled without obstructing the assembly of the stamping part, thereby realizing smooth assembly of the stamping part, and the single column 41 is abutted against the wall of the assembly hole to realize positioning clamping; and when the number of assembly holes is missing, when the stamping part is assembled, because the stamping part surface does not have an assembly hole, the detection column 4 cannot penetrate smoothly, causing obstruction to the assembly of the stamping part, thereby determining that the number of punching holes is missing, and realizing a rapid detection operation of leak-proof punching.

[0029] The above shows and describes the basic principles, main features and advantages of this application. Without departing from the spirit and scope of this application, this application will also have various changes and improvements, which fall within the scope of this application.

Claims

1. A leak-proof punching detection device for sheet metal stamping parts, wherein the stamping part (1) has a clamping station, and the clamping station has a plurality of positioning blocks (2) that contact the stamping part (1) at different positions, characterized in that: The detection device is arranged on a clamping station and corresponds to the position of a punching hole (1a) on a stamping part (1); when the punching hole (1a) of the stamping part (1) is in an unformed state, the detection device blocks the stamping part (1) from being assembled with the assembly station.

2. The detection device according to claim 1, characterized in that: The detection device comprises a detection block (3) arranged in the clamping station corresponding to the position of the punching hole (1a), and a detection column (4) is arranged on the detection block (3) and can be embedded in the punching hole (1a) when the stamping part (1) is assembled in the clamping station.

3. The detection device according to claim 2, characterized in that: The detection column (4) is configured as a cone structure.

4. The detection device according to claim 3, characterized in that: A support rod (31) is provided on the detection block (3) and at the center of the detection column (4); the detection column (4) is divided into single columns (41) along the circumferential direction, each of which is hinged on the support rod (31); and a torsion spring is provided at the hinge of each single column (41).

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