Positioning pin capable of preventing product surface from being scratched

Abstract

The utility model discloses a locating pin capable of preventing the surface of a product from being scratched, which belongs to the field of radiator production and manufacture and comprises a connecting end, a locating end, a guide end and a limiting end which are sequentially arranged from bottom to top, a limiting boss used for supporting the product is formed between the guide end and the locating end, and the locating end is connected with the connecting end. The limiting end is detachably installed on the guiding end, and the guiding end and the limiting end form a conical structure. The positioning pin is arranged in a split mode, the limiting boss used for supporting a product is formed between the guiding end and the positioning end, and the guiding end and the limiting end form a conical structure. When the positioning pin is used for axial positioning, the direct contact surface of a product and the positioning pin is a guide end, and when nylon is in contact with the metal surface of the product, the flexibility and the strength of the nylon ensure that the surface of the product cannot be abraded or scratched in the contact process.

Description

Technical Field

[0001] The utility model relates to the field of radiator production and manufacturing, and in particular to a positioning pin for preventing scratches on the surface of a product. Background Art

[0002] After the radiator baffle is manufactured, it needs to be placed on a tooling inspection fixture to test whether it is qualified. Multiple limit blocks or positioning pins are set between the product and the tooling inspection fixture. The installation point of the product is controlled by multiple limit blocks or positioning pins, so that after the product is placed in the limit block, it is possible to quickly, accurately, intuitively and conveniently determine whether the product's size, assembly position, and assembly angle are qualified. In the prior art, the limit blocks or positioning pins have a large disassembly and assembly force, which can easily scratch the mating surface of the product during the placement and disassembly process. Utility Model Content

[0003] The utility model aims to provide a positioning pin which can prevent scratches on the surface of a product.

[0004] The technical solution of the utility model is: a positioning pin for preventing scratches on the surface of a product, which is used to be arranged on the base of a tooling inspection fixture, and comprises a connecting end, a positioning end, a guide end, and a limit end which are arranged in sequence from bottom to top, wherein a limit boss for supporting the product is formed between the guide end and the positioning end, the limit end is detachably mounted on the guide end, and the guide end and the limit end form a conical structure.

[0005] According to a further technical solution, a threaded hole is provided at the bottom of the connecting end for fixed connection with the base.

[0006] According to a further technical solution, the guide end is made of nylon.

[0007] According to a further technical solution, the material of the limit end is engineering plastic.

[0008] A further technical solution is that the positioning end and the connecting end are an integrated structure, and the material of the positioning end and the connecting end is high-carbon high-chromium cold working die steel

[0009] Beneficial effects of the utility model:

[0010] Compared with the integrally formed positioning pin structure in the prior art, the positioning pin of the utility model is divided into two parts, including a connecting end, a positioning end, a guide end, and a limit end which are arranged in sequence from bottom to top, wherein a limit boss for supporting the product is formed between the guide end and the positioning end, and the guide end and the limit end form a conical structure, and the limit end for limiting the product is detachably mounted on the guide end, so that it can be applied to products with positioning holes of different sizes. When the utility model is used for axial positioning, the direct contact surface between the product and the positioning pin is the guide end, and when nylon contacts the metal surface of the product, the flexibility and strength of nylon ensure that the surface of the product will not be worn or scratched during the contact process. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 This is a schematic diagram of the structure of the utility model.

[0012] Figure 2 This is a schematic diagram of the use of the utility model.

[0013] Among them, 1. connecting end, 2. positioning end, 3. limiting boss, 4. guide end, 5. limiting end, 6. base, 7. product. DETAILED DESCRIPTION

[0014] The present invention is further described and understood by way of non-limiting examples below.

[0015] like Figure 1-2 As shown, the utility model provides a positioning pin for preventing scratches on the surface of a product, which is used to be arranged on a base 6 of a tooling inspection tool, and includes a connecting end 1, a positioning end 2, a guide end 4, and a limiting end 5 arranged in sequence from bottom to top, wherein a limiting boss 3 for supporting the product is formed between the guide end 4 and the positioning end 2, and the limiting end 5 is detachably mounted on the guide end 4, such as Figure 1 As shown, the bottom of the limiting end 5 is provided with an external thread, the cavity in the guide end 4 is provided with an internal thread, the limiting end 5 is threadedly connected to the guide end 4, and the detachable limiting end 5 can be suitable for products 7 with positioning holes of different sizes.

[0016] The positioning end 2 and the connecting end 1 are in an integrated structure, and the positioning end 2 and the connecting end 1 are made of high-carbon high-chromium cold-working die steel, and the bottom of the connecting end 1 is provided with a threaded hole for fixed connection with the base 6. High-carbon high-chromium cold-working die steel has high wear resistance and toughness, thereby providing stable support.

[0017] The guide end 4 is made of nylon, and the limit end 5 is made of engineering plastic POM, which has the performance of friction resistance. The guide end 4 and the limit end 5 form a conical structure. The conical structure and the limit boss 3 form an axial positioning for the product 7, such as Figure 2As shown, the direct contact surface between the product 7 and the positioning pin is the guide end 4. When the guide end 4 contacts the metal surface of the product 7, the flexibility and strength of nylon ensure that the surface of the product 7 will not be worn or scratched during the contact process.

[0018] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model may have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A positioning pin for preventing scratches on the surface of a product, used to be set on the base of a tooling inspection tool, characterized in that: It includes a connecting end, a positioning end, a guide end, and a limit end which are arranged in sequence from bottom to top, wherein a limit boss for supporting the product is formed between the guide end and the positioning end, the limit end is detachably mounted on the guide end, and the guide end and the limit end form a conical structure.

2. A positioning pin for preventing scratches on a product surface according to claim 1, characterized in that: The bottom of the connecting end is provided with a threaded hole for fixed connection with the base.

3. A positioning pin for preventing scratches on a product surface according to claim 1, characterized in that: The guide end is made of nylon.

4. A positioning pin for preventing scratches on a product surface according to claim 3, characterized in that: The material of the limiting end is engineering plastic.

5. A positioning pin for preventing scratches on the surface of a product according to claim 4, characterized in that: The positioning end and the connecting end are in an integrated structure, and the positioning end and the connecting end are made of high-carbon high-chromium cold-working die steel.

Images