Rivet pressing die

Abstract

A rivet pressing die comprises a pressing block, at least two arc-shaped grooves are formed in the middle of the lower surface of the pressing block at intervals, the arc-shaped grooves extend to the rear end face of the pressing block from the front end face of the pressing block, protruding blocks are arranged in the middles of the inner walls of the arc-shaped grooves, and the length directions of the protruding blocks are parallel to the length directions of the arc-shaped grooves. The protruding block extends from the front end face of the pressing block to the rear end face of the pressing block, at least two arc-shaped protruding strips are arranged on the inner wall of the arc-shaped groove in the length direction at intervals, and the arc-shaped protruding strips extend in the circumferential direction and are distributed on the two sides of the protruding block. The side wings are pressed and riveted downwards by the pressing block, so that the side wings are bent and deformed oppositely to hold the water-cooling pipe, and the water-cooling pipe and the heat-dissipation bottom plate are firmly fixed and prevented from loosening after long-term use of the water-cooling pipe and the heat-dissipation bottom plate. In the riveting process, the protruding blocks can abut against the water cooling pipe downwards, the water cooling pipe is prevented from moving upwards under the extrusion effect of the side wings, and the water cooling pipe deforms evenly and is attached to the heat dissipation bottom plate more evenly.

Description

Technical Field

[0001] This utility model relates to the field of machinery, and more particularly to molds, especially a riveting mold. Background Technology

[0002] In the radiator manufacturing process, a press-fit die is typically used to tightly bond the water-cooling pipes to the heatsink base plate to improve heat dissipation. However, radiators manufactured using existing press-fit dies suffer from problems such as poor fit between the water-cooling pipes and the heatsink base plate, leading to loosening after prolonged use and resulting in unsatisfactory heat dissipation. Utility Model Content

[0003] The purpose of this utility model is to provide a press-fit mold that solves the technical problem that the heat dissipation effect of the radiator manufactured by the press-fit mold in the prior art is not ideal.

[0004] This utility model discloses a riveting mold, including a pressure block. At least two arc-shaped grooves are provided at intervals on the lower surface of the pressure block. The arc-shaped grooves extend from the front end face of the pressure block to the rear end face of the pressure block. A protrusion is provided in the middle of the inner wall of the arc-shaped groove. The length direction of the protrusion is parallel to the length direction of the arc-shaped groove. The protrusion extends from the front end face of the pressure block to the rear end face of the pressure block. At least two arc-shaped ridges are provided at intervals along the length direction on the inner wall of the arc-shaped groove. The arc-shaped ridges extend circumferentially and are distributed on both sides of the protrusion.

[0005] Furthermore, the number of the arc-shaped protrusions is three.

[0006] Compared with existing technologies, the advantages of this invention are positive and significant. The pressure block presses down on the side wings, causing them to bend and deform towards each other, tightly gripping the water-cooling pipe. This securely fixes the water-cooling pipe to the heat dissipation base plate, preventing loosening after prolonged use. During the riveting process, the protrusion presses downward against the water-cooling pipe, preventing it from shifting upward under the pressure of the side wings. This ensures the water-cooling pipe deforms evenly and fits more symmetrically against the heat dissipation base plate. The arc-shaped protrusions press downwards into several indentations on the side wings and water-cooling pipe, thereby improving the fit between the water-cooling pipe and the side wings, enhancing the heat dissipation capacity of the radiator, and extending the product's lifespan. Attached Figure Description

[0007] Figure 1 This is a schematic diagram of a riveting mold according to the present invention.

[0008] Figure 2 This is a schematic diagram of the first usage state of a riveting mold according to the present invention.

[0009] Figure 3 This is a schematic diagram of the second use state of a riveting mold according to the present invention. Detailed Implementation

[0010] The present invention will be further described below with reference to embodiments, but the present invention is not limited to these embodiments. Any similar variations using the present invention should be included within the protection scope of the present invention. The use of directions such as up, down, front, back, left, right, center, inside, and outside in the present invention is only for the convenience of clear description and is not intended to limit the technical solution of the present invention.

[0011] like Figures 1-3 As shown, a riveting mold of the present invention includes a pressure block 1. At least two arc-shaped grooves 2 are provided at intervals on the lower surface of the pressure block 1. The arc-shaped grooves 2 extend from the front end face of the pressure block 1 to the rear end face of the pressure block 1. A protrusion 3 is provided in the middle of the inner wall of the arc-shaped groove 2. The length direction of the protrusion 3 is parallel to the length direction of the arc-shaped groove 2. The protrusion 3 extends from the front end face of the pressure block 1 to the rear end face of the pressure block 1. At least two arc-shaped ridges 4 are provided at intervals along the length direction on the inner wall of the arc-shaped groove 2. The arc-shaped ridges 4 extend circumferentially and are distributed on both sides of the protrusion 3.

[0012] Furthermore, the number of the arc-shaped protrusions 4 is three.

[0013] The working principle of this embodiment:

[0014] like Figure 2 and Figure 3 As shown, the radiator consists of a water-cooling pipe 5 and a heat dissipation base plate. The base plate also has an arc-shaped groove, with side wings 6 extending upwards on both sides. The water-cooling pipe 5 is placed in the arc-shaped groove, and the pressure block 1 presses down on the side wings 6, causing them to bend and deform towards each other, tightly gripping the water-cooling pipe 5. This securely fixes the water-cooling pipe 5 to the heat dissipation base plate, preventing it from loosening after prolonged use. During the riveting process, the protrusion 3 presses downwards against the water-cooling pipe 5, preventing it from moving upwards under the pressure of the side wings 6. This ensures the water-cooling pipe 5 deforms evenly and fits more symmetrically against the heat dissipation base plate. The arc-shaped protrusion 4 presses downwards into several indentations 7 on the side wings 6 and the water-cooling pipe 5, thereby improving the fit between the water-cooling pipe 5 and the side wings 6, enhancing the radiator's heat dissipation capacity, and extending the product's lifespan.

Claims

1. A riveting die, characterized in that, The device includes a pressure block, on the lower surface of which at least two arc-shaped grooves are spaced apart. The arc-shaped grooves extend from the front end face of the pressure block to the rear end face of the pressure block. A protrusion is provided in the middle of the inner wall of the arc-shaped groove. The length direction of the protrusion is parallel to the length direction of the arc-shaped groove. The protrusion extends from the front end face of the pressure block to the rear end face of the pressure block. At least two arc-shaped ridges are spaced apart along the length direction on the inner wall of the arc-shaped groove. The arc-shaped ridges extend circumferentially and are distributed on both sides of the protrusion.

2. The riveting die according to claim 1, characterized in that, The number of the arc-shaped protrusions is three.

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