Fast melting fastening screw applied to automobile hardware stamping part

Abstract

The fast melting fastening screw applied to the automobile hardware stamping part comprises a screw body, a screw head is arranged on the upper end face of the screw body, a plurality of welding protruding points are evenly distributed on the lower end face of the screw head, the radius of each welding protruding point is 0.5-0.8 MM, and the height of each welding protruding point is 0.3-0.4 MM. According to the fast melting fastening screw applied to the automobile hardware stamping part, the screw is improved, and when the screw is welded into a plate, the welding protruding points are not prone to falling off. The welding convex points can be heated and melted after passing through a large current, at the moment, the convex points can be melted and enter a product plate, and therefore welding fusion between the welding stud and the product is achieved, the screw is stably welded to the plate, the stability is greatly improved, and the thrust of the welded product can be effectively increased.

Description

Technical Field

[0001] The utility model relates to the field of automobile hardware, in particular to a fast-melting fastening screw used for automobile hardware stamping parts. Background Art

[0002] Automotive hardware has a plate that needs to be welded and fused into a screw to give the plate a locking function. However, after the screw is dissolved into the plate, there is a requirement for the screw thrust. If the thrust is not reached, the screw will fall off during the use of the product and the product function will fail. Utility Model Content

[0003] In order to solve the above problems, the present technical solution provides a fast melting fastening screw applied to automobile hardware stamping parts.

[0004] To achieve the above purpose, the technical solution is as follows:

[0005] A fast melting fastening screw used for automobile hardware stamping parts comprises a screw body, the upper end surface of the screw body is provided with a screw head, the lower end surface of the screw head is evenly arranged with a plurality of welding protrusions, the radius of the welding protrusions is 0.5-0.8MM, and the height is 0.3-0.4MM.

[0006] In some embodiments, four welding bumps are provided and are evenly distributed.

[0007] In some embodiments, the screw body is further provided with a positioning step.

[0008] The beneficial effects of this application are:

[0009] The present application improves the screws. When welding into a plate, the welding protrusions will be melted by heat after passing a large current. At this time, the protrusions will melt into the product plate, thereby achieving welding fusion between the welding nail and the product, so that the screws can be firmly welded to the plate, greatly improving stability, and effectively increasing the thrust of the product after welding. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model, the following briefly introduces the drawings required for describing the embodiments.

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

[0012] Figure 2 This is a schematic diagram of the structure of the embodiment of the utility model Figure 2 ;

[0013] Figure 3 It is a schematic diagram of product assembly of an embodiment of the utility model. DETAILED DESCRIPTION

[0014] In order to make the technical problems, technical solutions and beneficial effects solved by the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0015] Please refer to Figure 1-3 As shown, a fast melting fastening screw used for automobile hardware stamping parts includes a screw body 1, a screw head 2 is provided on the upper end surface of the screw body 1, and a plurality of welding convex points 3 are evenly arranged on the lower end surface of the screw head 2, and the radius of the welding convex points 3 is 0.5-0.8MM and the height is 0.3-0.4MM. There are four welding convex points 3 and they are evenly distributed. The screw body 1 is also provided with a positioning step 4.

[0016] This application optimizes the structure of the screws and improves the structural design of the welding fasteners to address the welding thrust problem. After welding, the thrust meets customer requirements and can meet product size requirements. It is a huge optimization over the original production method, and the thrust of the screws after welding is greatly improved.

[0017] Specifically, when the fastener screw is welded to the plate, the welding protrusion will melt due to heat after passing through a large current. At this time, the protrusion will melt into the product plate, thereby achieving welding fusion between the welding nail and the product. The above conditions can be modified and produced without affecting the product size and product strength performance. In this structure, the fastener screw is optimized, and 4 welding protrusions are added to the welding end of the screw to make the welding fusion between the welding nail and the product more firm. The radius of this protrusion is 0.5-0.8 and the height is 0.3-0.4mm. Through the optimization of this structure, the welding thrust problem of this type of fastener is improved, while also ensuring the final size and required strength of the product.

[0018] The above description is only a preferred embodiment of the present application and is not intended to limit the scope of implementation of the present application. Other principles and basic structures that are the same or similar to those of the present application are within the protection scope of the present application.

Claims

1. Rapid melting fastening screws used in automotive metal stamping parts, characterized in that: The invention comprises a screw body (1), wherein the upper end surface of the screw body (1) is provided with a screw head (2), and the lower end surface of the screw head (2) is evenly arranged with a plurality of welding protrusions (3), wherein the radius of the welding protrusions (3) is 0.5-0.8MM and the height is 0.3-0.4MM.

2. The fast melting fastening screw for automobile metal stamping parts according to claim 1 is characterized in that: The welding protrusions (3) are provided with four and are evenly distributed.

3. The fast melting fastening screw for automobile metal stamping parts according to claim 2 is characterized in that: The screw body (1) is also provided with a positioning step (4).

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