A detection tool for a hole site of a sheet metal part

Abstract

The utility model provides a kind of for sheet metal part hole site's detection tool, including first sheet material, quantity is multiple, multiple first sheet material is spaced apart along first direction, multiple first slot is spaced apart and is formed on the first sheet material along second direction, at least two corners are formed in the end of the first sheet material away from the first slot;Second sheet material, quantity is multiple, multiple second sheet material is spaced apart along the second direction, multiple second slot is spaced apart and is formed on the second sheet material along the first direction, multiple second slot is used to be inserted with different first slot one by one;Wherein, at least two first sheet material is equipped with positioning member in the end away from the first slot, and the positioning member is used to position sheet metal part hole site;The utility model is suitable for the distance detection of non-planar sheet metal part hole site, and can be adjusted assembly to adapt to the detection demand of different size product, with the advantages of simple structure, low cost and strong universality.

Description

Technical Field

[0001] This utility model belongs to the field of sheet metal production technology, and specifically relates to a tool for detecting the hole positions of sheet metal parts. Background Technology

[0002] In the field of precision machining, a special type of machining requirement is often encountered: the inspection and machining of two holes with a large spatial difference on a non-planar workpiece. These workpieces are widely used in automotive parts, aerospace components, or high-end electronic device housings. Because their surfaces are not standard planes, but may have complex shapes such as curved surfaces, inclined surfaces, or stepped surfaces, and the spatial distance between the two holes to be machined or inspected is large (e.g., the hole center distance is far beyond the coverage of conventional machining fixtures), or the holes are located on surfaces with different maximum heights and different tilt angles on the workpiece, the accurate inspection and machining of the hole distance becomes a technical challenge. When machining the shape of such workpieces, the industry previously commonly used a process that employed a single piece of bakelite material as both the machining substrate and the tooling base. Bakelite, with its excellent physical properties, is an ideal choice for this type of machining. It possesses good mechanical strength and can withstand the cutting forces of the milling cutter during milling without easily deforming. In the specific machining process, operators first mark the bakelite substrate with positioning marks according to the workpiece's design drawings, determining the reference points and contour boundaries for contour machining. Then, using milling contour machining technology, the bakelite substrate is machined into a product shape consistent with the design drawings, laying the foundation for subsequent machining and inspection of non-planar, large-span hole spacing. However, this traditional process still faces challenges in locating and machining subsequent holes when dealing with non-planar workpieces with large hole spacing. Due to the non-planar nature of the workpiece surface, conventional planar positioning tools, such as dial indicators and positioning blocks, are insufficient to accurately determine the hole reference points. Furthermore, large hole spacing requires machining equipment with a larger machining stroke and higher long-distance positioning accuracy; otherwise, the distance error between two holes may exceed the design tolerance range. Furthermore, the processed bakelite is only suitable for testing single-size products and cannot be adapted to other products, which can easily lead to resource waste and increased production costs. Summary of the Invention

[0003] To address the shortcomings of the prior art, this utility model provides a tool for detecting hole positions in sheet metal parts. It is suitable for detecting the distance of hole positions in non-planar sheet metal parts, and can be adjusted and assembled to adapt to the detection needs of products of different sizes. It has the advantages of simple structure, low cost and strong versatility.

[0004] The technical effects to be achieved by this utility model are realized through the following technical aspects: This utility model provides a tool for detecting the hole positions of sheet metal parts, including: The first sheet material, in multiple quantities, is arranged at intervals along a first direction. Multiple first slots are spaced apart on the first sheet material along a second direction. At least two bends are formed on the end of the first sheet material away from the first slot. The second piece of material is multiple, and the multiple second pieces of material are spaced apart along the second direction. Multiple second slots are spaced apart on the second pieces of material along the first direction. The multiple second slots are used to be paired with different first slots one by one. At least two of the first sheet materials have a positioning element at one end away from the first slot, and the positioning element is used to position the hole of the sheet metal part.

[0005] In some implementations, the positioning element and the first sheet are detachably connected, and this detachable connection method can be adapted to the detection requirements of holes at different positions.

[0006] In some implementations, a positioning slot is formed on one end of the positioning member near the first sheet material. The positioning slot is used to insert into the first sheet material, and the positioning member can quickly establish an insertion relationship with the first sheet material through the positioning slot, which has the advantage of convenient operation.

[0007] In some implementations, a first groove is formed on the first sheet material corresponding to the position of the positioning member, and the first groove is used to position the positioning member; The positioning slot is inserted into the first sheet material along the first groove. The first groove is used to position the positioning component, which facilitates quick positioning and insertion of the positioning component.

[0008] In some implementations, a guide portion is formed at the end of the positioning member away from the positioning slot. The guide portion has a guide slope that is inclined toward the center of the guide portion in a direction away from the positioning slot. The arrangement of the guide portion and the guide slope facilitates rapid positioning of the hole positions on the sheet metal part. In some implementations, there are multiple positioning elements, some of which are columnar and some are block-shaped. Positioning elements of different shapes can adapt to the detection requirements of holes of different shapes.

[0009] In some implementations, the maximum height of the first sheet in the third direction is H1, and the maximum depth of the first slot in the third direction is H2, wherein H2 is greater than or equal to H1 / 3, to ensure the stability of the insertion between the first sheet and the second sheet.

[0010] In some implementations, H1 is 170-180mm and H2 is 60-65mm, which is suitable for the detection needs of most sheet metal hole positions.

[0011] In some implementations, the number of the first piece and the second piece are both four, which provides better stability for the insertion and ensures the stability of the testing equipment.

[0012] In some implementations, a base is also included, on which a third slot is formed corresponding to the positions of the first sheet and the second sheet, to further ensure the stability of the testing tool.

[0013] In summary, this utility model has at least the following advantages: This utility model provides a tool for detecting hole positions in sheet metal parts. It employs multiple first sheets and multiple second sheets, with a first slot on one of the first sheets and a second slot on the second sheets, creating a one-to-one correspondence between the first and second sheets. The first and second slots establish an interlocking relationship, forming a three-dimensional detection tool that supports the sheet metal part to be inspected. This tool is easy to manufacture and has a simple structure. The first sheets have bends and positioning elements to accommodate distance detection of hole positions in non-planar sheet metal parts, resulting in low cost. By adjusting the assembly of the first and second sheets after changing the sheet metal part size on the production line, it can adapt to the inspection needs of products with different sizes, demonstrating strong versatility. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of the testing instrument provided in Embodiment 1 of this utility model; Figure 2 This is a schematic diagram of the structure of the first sheet material provided in Embodiment 1 of this utility model; Figure 3 This is a schematic diagram of the structure of the second sheet material provided in Embodiment 1 of this utility model; Figure 4 This is a schematic diagram of the structure of the columnar positioning member provided in Embodiment 1 of this utility model; Figure 5 This is a schematic diagram of the block-shaped positioning component provided in Embodiment 1 of this utility model; Figure 6 This is a schematic diagram of the structure of the sheet metal part to be tested provided in Embodiment 1 of this utility model; Figure 7 This is a schematic diagram of the structure of the first sheet material provided in Embodiment 2 of this utility model; Figure 8 This is a schematic diagram of the structure of the testing instrument provided in Embodiment 3 of this utility model; Marked in the image: 100. First piece of material; 110. First slot; 120. Corner; 130. Positioning component; 131. Positioning slot; 132. Guide part; 1321. Guide slope; 140. First groove; 200, Second piece of material; 210, Second slot; 300. Base; 400. Sheet metal part to be inspected; 410. First platform; 420. Second platform; 430. Hole position; X, first direction; Y, the second direction; Z, Third-party orientation. Detailed Implementation

[0015] To facilitate understanding of the present invention, a more comprehensive description will be given below in conjunction with the accompanying drawings and specific embodiments. The drawings illustrate preferred embodiments of the invention. However, the invention can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a thorough and complete understanding of the disclosure of the invention.

[0016] It should be noted that when a component is said to be "fixed to" another component, it can be directly attached to the other component or there may be an intervening component. When a component is said to be "connected to" another component, it can be directly connected to the other component or there may be an intervening component.

[0017] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this invention is in use. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention. In addition, the terms "first," "second," "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0018] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

[0019] Example 1: Please see Figures 1-6A tool for detecting hole positions in sheet metal parts includes multiple first sheets 100, spaced apart along a first direction X. Each first sheet 100 is a sheet-like base material with specific specifications, such as a thin metal sheet (e.g., cold-rolled steel sheet, aluminum alloy sheet), a thin plastic sheet (e.g., PP polypropylene sheet, PET polyester sheet), or a composite material sheet (e.g., metal-plastic composite sheet). The surface of the first sheet 100 is pre-treated to meet processing accuracy requirements. The multiple first sheets 100 are spaced evenly or unevenly along the first direction X. The spacing between two adjacent first sheets 100 is determined according to the hole positions of the sheet metal part 400 to be inspected, thus meeting the hole position detection requirements of the sheet metal part 400.

[0020] like Figure 2 As shown, a plurality of first slots 110 are spaced apart along the second direction Y on the first sheet material 100, and at least two bends 120 are formed at the end of the first sheet material 100 away from the first slots 110.

[0021] Here, the second direction Y is also the length extension direction of the first sheet material 100. Multiple first slots 110 are uniformly or unevenly formed along the second direction Y. At least two bends 120 are formed at the end of the first sheet material 100 away from the first slots 110, such as... Figure 2 As shown, the first slot 110 is located at the lower end of the first sheet 100, and the bend 120 is located at the upper end of the first sheet 100. There are two bends 120, and the number and specific curvature of the bends 120 can match the non-planar position of the sheet metal part 400 to be tested.

[0022] like Figure 3 As shown, there are multiple second sheet materials 200, which are spaced apart along the second direction Y. Multiple second slots 210 are provided on the second sheet materials 200 along the first direction X. The multiple second slots 210 are used to be inserted into different first slots 110 one by one.

[0023] Similarly, the second sheet material 200 refers to a sheet-like base material with specific specifications. It can be a thin metal sheet, such as a cold-rolled steel sheet or an aluminum alloy sheet; a thin plastic sheet, such as a PP polypropylene sheet or a PET polyester sheet; or a composite material sheet, such as a metal-plastic composite sheet. The surface is pre-treated to meet the processing accuracy requirements. Multiple second sheets material 200 are arranged at uniform or non-uniform intervals along the second direction Y. The interval between two adjacent second sheets material 200 is set according to the hole positions of the sheet metal part 400 to be inspected, so as to meet the hole position inspection requirements of the sheet metal part 400 to be inspected.

[0024] Here, the first direction X and the second direction Y are perpendicular to each other. The distance between adjacent first slots 110 is equivalent to the distance between adjacent second pieces 200. Similarly, the distance between adjacent second slots 210 is equivalent to the distance between adjacent first pieces 100. Align the first slots 110 on the first piece 100 with the second slots 210 inserted into the second piece 200. After inserting multiple first pieces 100 and second pieces 200, a three-dimensional inspection tool for the hole positions of sheet metal parts is formed. The upper ends of multiple first pieces 100 are used to support the sheet metal part 400 to be inspected. The bends 120 on the first pieces 100 are used to fit the non-planar positions of the sheet metal part 400 to be inspected, so as to achieve the effect of the sheet metal part 400 to be inspected fitting into the inspection tool. At least two of the first sheet metal pieces 100 are provided with a positioning element 130 at one end away from the first slot 110. The positioning element 130 is used to position the hole of the sheet metal part.

[0025] As can be seen from the foregoing, the first slot 110 is located at the lower end of the first sheet 100. Here, the positioning member 130 is located at the upper end of the first sheet 100. After the sheet metal part 400 to be tested is placed on the testing tool, the multiple inserted first sheets 100 support the sheet metal part 400 to be tested. There are multiple holes on the sheet metal part 400 to be tested. The testing tool is used to detect the spacing between the multiple holes on the sheet metal part 400 to be tested. Therefore, the number and setting position of the positioning member 130 are consistent with the number and setting position of the holes.

[0026] like Figure 6 As shown, in one example, the sheet metal part 400 to be inspected has a first platform 410 and a second platform 420, which are connected by an inclined plane. A first bend exists between the first platform 410 and the inclined plane, and a second bend exists between the second platform 420 and the inclined plane. The upper edge of the first sheet 100 has a portion that fits against the first platform 410, the second platform 420, the inclined plane, the first bend, and the second bend. Holes 430 are provided at both the first platform 410 and the second platform 420, and positioning elements 130 are provided on the first sheet 100 corresponding to the holes 430.

[0027] This utility model provides a tool for detecting hole positions in sheet metal parts. It employs multiple first sheet materials 100 and multiple second sheet materials 200, with first slots 110 formed on the first sheet materials 100 and second slots 210 formed on the second sheet materials 200. This ensures a one-to-one correspondence between the first sheet materials 100 and the second sheet materials 200, establishing an interlocking relationship through the first slots 110 and second slots 210, forming a three-dimensional detection tool to support the sheet metal part 400 to be inspected. This tool is easy to manufacture and has a simple structure. The first sheet material 100 has a bend 120 and a positioning element 130 for adapting to the distance detection of hole positions in non-planar sheet metal parts, offering the advantage of low cost. After changing the size of the sheet metal part on the production line, the first sheet materials 100 and second sheet materials 200 can be adjusted and reassembled to meet the inspection needs of products of different sizes, demonstrating strong versatility.

[0028] In some embodiments, the positioning member 130 and the first piece 100 are detachably connected, and this detachable connection method can be adapted to the detection requirements of holes at different positions.

[0029] On the production line, there may be testing tools with the same structure and size but different hole positions. Therefore, in order to improve the versatility of the testing tool, the positioning part 130 and the first piece 100 are designed to be detachably connected. When the hole positions of sheet metal parts with the same structure and size are changed, the position of the positioning part 130 relative to the first piece 100 can be adjusted.

[0030] like Figure 4 As shown, in some embodiments, a positioning slot 131 is formed on one end of the positioning member 130 near the first sheet material 100. The positioning slot 131 is used to insert into the first sheet material 100. The positioning member 130 can quickly establish an insertion relationship with the first sheet material 100 through the positioning slot 131, which has the advantage of convenient operation.

[0031] The spacing between the opposite side walls of the positioning slot 131 is matched with the thickness of the first sheet material 100, so that after the positioning member 130 is inserted into the first sheet material 100 through the positioning slot 131, it can be stably inserted into the first sheet material 100 and will not change position without the action of a large external force.

[0032] Furthermore, a first groove 140 is formed on the first sheet material 100 at the position corresponding to the positioning member 130. The first groove 140 is used for positioning the positioning member 130. The positioning slot 131 is inserted into the first sheet material 100 along the first groove 140. The first groove 140 is used to position the positioning member 130, which facilitates quick positioning and insertion of the positioning member 130.

[0033] In some embodiments, a guide portion 132 is formed at one end of the positioning member 130 away from the positioning slot 131. The guide portion 132 has a guide slope 1321. The guide slope 1321 is inclined toward the center of the guide portion 132 in a direction away from the positioning slot 131. The arrangement of the guide portion 132 and the guide slope 1321 facilitates the rapid positioning of the hole position of the sheet metal part.

[0034] In actual assembly or processing operations, the guide slope 1321 on the guide part 132 can effectively expand the initial contact range between the positioning part 130 and the hole position of the sheet metal part 400 to be inspected. The guide slope 1321 can also generate a guiding force through its own tilt angle, so as to smoothly and accurately guide the hole position of the sheet metal part 400 to the correct docking position of the positioning part 130, thereby reducing the alignment difficulty, realizing the rapid, efficient and accurate positioning of the hole position of the sheet metal part 400 to be inspected, and improving the overall operation efficiency.

[0035] like Figure 4 and Figure 5 As shown, there are multiple positioning elements 130, some of which are columnar and some are block-shaped. Positioning elements 130 of different shapes can adapt to the detection requirements of holes of different shapes.

[0036] like Figure 6 As shown, the sheet metal part 400 to be inspected has a total of 6 holes 430, including 4 circular holes and 2 oblong holes. Correspondingly, there are 6 positioning parts 130, including 4 columnar positioning parts 130 and 2 block positioning parts 130. On the two first pieces 100 that are far apart, there are 2 columnar positioning parts 130 and 1 block positioning part 130 respectively.

[0037] It should be noted that the number and shape of the positioning elements 130 are not specifically limited in this embodiment, and can be adapted to the number and shape of the holes on the actual sheet metal part 400 to be tested.

[0038] Example 2: This embodiment makes further structural optimizations based on Embodiment 1. Please refer to... Figures 1-6 Based on the above, refer to Figure 7 .

[0039] In this embodiment, the maximum height of the first sheet material 100 in the third direction Z is H1, and the maximum depth of the first slot 110 in the third direction Z is H2. H2 is greater than or equal to H1 / 3, ensuring the insertion stability between the first sheet material 100 and the second sheet material 200.

[0040] Furthermore, the maximum height H1 of the first sheet material 100 in the third direction Z is 170-180mm, and the maximum depth H2 of the first slot 110 in the third direction Z is 60-65mm, which can meet the inspection needs of most sheet metal hole positions.

[0041] In one example, the maximum height H1 of the first sheet 100 in the third direction Z is 170mm, and the maximum depth H2 of the first slot 110 in the third direction Z is 60mm.

[0042] Example 3: This embodiment makes further structural optimizations based on Embodiment 1. Please refer to... Figures 1-6 Based on the above, refer to Figure 8 .

[0043] In this embodiment, there are four first sheet materials 100 and four second sheet materials 200. The number of first slots 110 matches the number of second sheet materials 200, and the number of second slots 210 matches the number of second sheet materials 200. The four first sheet materials 100 and four second sheet materials 200 achieve good insertion stability through the insertion relationship of the first slots 110 and the second slots 210, so as to ensure the stability of the testing tool.

[0044] It should be noted that the number of the first slot 110 and the second slot 210 can be greater than the number of the first sheet 100 and the second sheet 200. In this way, when adapting to sheet metal parts 400 with different hole spacings, the adjacent first sheet 100 can be inserted into the second slot 210 with the appropriate spacing, and the adjacent second sheet 200 can be inserted into the first slot 110 with the appropriate spacing.

[0045] In some embodiments, the testing device also includes a base 300, on which a third slot is formed corresponding to the positions of the first sheet material 100 and the second sheet material 200, to further ensure the stability of the testing device in use.

[0046] The above description is merely an example and illustration of the structure of this invention, and while the description is specific and detailed, it should not be construed as limiting the scope of this invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this invention, and these obvious substitutions all fall within the protection scope of this invention.

Claims

1. A tool for detecting the hole positions of sheet metal parts, characterized in that, include: The first sheet material (100) is multiple in number, and the multiple first sheet materials (100) are spaced apart along the first direction (X). The first sheet material (100) is provided with multiple first slots (110) spaced apart along the second direction (Y). The first sheet material (100) has at least two bends (120) at one end away from the first slots (110). There are multiple second sheets (200), and the multiple second sheets (200) are spaced apart along the second direction (Y). Multiple second slots (210) are spaced apart along the first direction (X) on the second sheets (200). The multiple second slots (210) are used to be paired with different first slots (110). At least two of the first sheet materials (100) have a positioning element (130) at one end away from the first slot (110), and the positioning element (130) is used to position the hole of the sheet metal part.

2. The tool for detecting hole positions in sheet metal parts according to claim 1, characterized in that, The positioning element (130) and the first sheet material (100) are detachably plugged in.

3. The tool for detecting hole positions in sheet metal parts according to claim 2, characterized in that, A positioning slot (131) is formed on one end of the positioning member (130) near the first sheet material (100), and the positioning slot (131) is used to be inserted into the first sheet material (100).

4. The tool for detecting hole positions in sheet metal parts according to claim 3, characterized in that, A first groove (140) is formed on the first sheet (100) at the position corresponding to the positioning member (130), and the first groove (140) is used to position the positioning member (130). The positioning slot (131) is inserted into the first sheet material (100) along the first groove (140).

5. The inspection tool for hole positions in sheet metal parts according to claim 4, characterized in that, A guide portion (132) is formed at one end of the positioning member (130) away from the positioning slot (131). The guide portion (132) has a guide slope (1321) that is inclined toward the center of the guide portion (132) in a direction away from the positioning slot (131).

6. The tool for detecting hole positions in sheet metal parts according to any one of claims 1-5, characterized in that, The number of the positioning elements (130) is multiple, some of which are columnar and some of which are block-shaped.

7. The tool for detecting hole positions in sheet metal parts according to claim 1, characterized in that, The maximum height of the first sheet (100) in the third direction (Z) is H1, and the maximum depth of the first slot (110) in the third direction (Z) is H2, wherein H2 is greater than or equal to H1 / 3.

8. The inspection tool for hole positions in sheet metal parts according to claim 7, characterized in that, H1 is 170-180mm, and H2 is 60-65mm.

9. The tool for detecting hole positions in sheet metal parts according to claim 1, characterized in that, The quantity of the first sheet (100) and the second sheet (200) is 4.

10. The tool for detecting hole positions in sheet metal parts according to claim 1, characterized in that, It also includes a base (300), on which a third slot is formed at a position corresponding to the first sheet (100) and the second sheet (200).

Images