CN216175744U

CN216175744U - Jig for blanking heat dissipation block

Info

Publication number: CN216175744U
Application number: CN202122467115.XU
Authority: CN
Inventors: 林川; 胡延康
Original assignee: Dongguan Xiangrong Precision Hardware Co ltd
Current assignee: Dongguan Xiangrong Precision Hardware Co ltd
Priority date: 2021-10-13
Filing date: 2021-10-13
Publication date: 2022-04-05
Anticipated expiration: 2031-10-13

Abstract

The utility model discloses a jig for blanking a radiating block, and relates to the technical field of punching machine jigs, wherein the jig comprises a jig body; one side of the jig body is recessed inwards to form a fin slot, and the jig body is also provided with a blanking hole which penetrates through the jig body from top to bottom and passes through the fin slot. The utility model mainly solves the problems that the short fins of the radiating block are easy to incline by using a machining method and the waste recovery value is low; according to the jig for blanking the radiating block, the blanking hole passes through the fin slot, the fin part in the blanking hole is cut off by using the blanking knife, the rest part of the cut fin is the short fin, and the fins which are not blanked are long fins, so that the blanking process of the radiating block is completed; because of the protection of the fin slot, the short fins of the heat dissipation block are not easy to incline in the blanking process; in addition, the fins are cut by using a blanking process, the waste materials are metal blocks, and the recovery value is high.

Description

Jig for blanking heat dissipation block

Technical Field

The utility model relates to the technical field of punching machine jigs, in particular to a jig for punching a radiating block.

Background

The heat dissipation block is used for dissipating heat for a heat source, for example, a processor of an industrial control computer, a high-power lamp, a power electronic device, a motor and other electrical appliances can all use the heat dissipation block to dissipate heat.

The heat dissipation block in the prior art generally comprises a base, wherein a plurality of fins are formed on the base, and form a fin group to increase the contact area of the heat dissipation block and air so that heat absorbed by the heat dissipation block can be quickly dissipated into the air; when the radiating block is used, the base of the radiating block is fixed on a fixed object and is in contact with a heat source, at the moment, the base can absorb heat from the heat source, and the heat absorbed from the heat source can be quickly and uniformly distributed in the whole radiating block and is radiated to the air through the fin group.

Referring to fig. 1, some types of heat dissipation blocks 1 include a base 11, a plurality of long fins 12 and a plurality of short fins 13 are formed on the base 11, the short fins 13 are arranged in a central array of the base 11, and the long fins 12 are arranged in an array on two sides of the base 11, respectively, depending on factors such as installation space and product shape design.

In the manufacturing process of the heat dissipation block 1, the base 11 and the fins are manufactured integrally by an extrusion molding method, at this time, the lengths of all the fins are the same, and then, a part of the length of the central fin of the base 11 is cut off by a machining method to form a short fin 13, and the unmachined fin is a long fin 12.

The short fins 13 are manufactured by a machining method, the short fins 13 are easy to incline, the heat dissipation performance of the heat dissipation block 1 is affected, in addition, the fins are machined and cut, the waste materials are metal chips, and the recycling value is low.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a jig for blanking a radiating block, which can be matched with the blanking process of the radiating block.

In order to achieve the purpose, the utility model provides the following technical scheme: a jig for blanking a heat dissipation block comprises a jig body; one side of the jig body is recessed inwards to form a fin slot, and the jig body is further provided with a blanking hole which penetrates through the jig body from top to bottom, wherein the blanking hole passes through the fin slot.

In the above technical solution, the fin slots are provided with a plurality of slots at the same side of the jig body at intervals, and the blanking holes pass through all the fin slots.

In the above technical solution, the length of the punched edge of the punched hole is shorter than the length of the fin slot.

In the technical scheme, the jig for blanking the radiating block further comprises an ejection block; the jig body forms an ejection hole opposite to the other side of the opening of the fin slot, and the ejection hole at least extends to the slot bottom of the fin slot; the ejector block is inserted into the ejector hole.

In the technical scheme, one end of the ejection block, which is positioned outside the jig body, is provided with a limiting lug for limiting the stroke of the ejection block, and the limiting lug can abut against the outer wall of the jig body.

Compared with the prior art, the utility model has the beneficial effects that:

1. according to the jig for blanking the radiating block, the blanking hole passes through the fin slot, the fin part in the blanking hole is cut off by using the blanking knife, the rest part of the cut fin is the short fin, and the fins which are not blanked are long fins, so that the blanking process of the radiating block is completed.

2. The jig for blanking the radiating block is provided with the fin slot, and the short fin of the radiating block is not easy to incline in the blanking process due to the protection of the fin slot.

3. The jig for blanking the radiating block can be matched with a blanking process of the radiating block, fins are cut by the blanking process, waste materials are metal blocks, and the recycling value is high.

Drawings

FIG. 1 is a structural view of a finished or machined heat slug utilizing the present invention.

Fig. 2 is a perspective view of the present invention.

Fig. 3 is a perspective view of the present invention in another direction.

Fig. 4 is a cross-sectional view of the present invention.

Fig. 5 is a cross-sectional view of a heat slug processed using the present invention.

The reference signs are: 1. a heat dissipating block; 11. a base; 12. a long fin; 13. short fins; 2. a jig body; 21. fin slots; 22. punching holes; 23. an ejection aperture; 3. ejecting a block; 31. and a limiting bump.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The embodiment provides a jig for blanking a radiating block, which is used for completing the blanking process of the radiating block 1 in a matching manner.

The heat dissipation block 1 is a metal block with good heat conductivity, such as aluminum alloy or copper; the heat dissipation block 1 is manufactured into an integrated base 11 and fins by adopting an extrusion molding method, and the lengths of all the fins are consistent before the blanking process is completed.

Referring to fig. 2-4, the jig for blanking a heat sink includes a jig body 2, the jig body 2 is a metal block with a rectangular outer profile, and in this embodiment, the jig body 2 is made of a hot-formed steel.

One side of the jig body 2 is recessed inwards to form a fin slot 21, the jig body 2 is also provided with a blanking hole 22 which penetrates through the jig body from top to bottom, and the blanking hole 22 passes through the fin slot 21; in this embodiment, the opening of the fin slot 21 is located at the front side of the jig body 2, the fin slot 21 extends to the rear side of the jig body 2, two openings of the blanking hole 22 are respectively located at the upper and lower surfaces of the jig body 2, and the blanking hole 22 passes through the portion of the fin slot 21 close to the bottom of the groove.

Furthermore, a plurality of fin slots 21 are arranged at intervals on the same side of the jig body 2, that is, all the fin slots 21 are parallel to each other and extend to the rear side of the jig body 2; the punched holes 22 pass through all the fin insertion grooves 21, that is, the punched holes 22 pass through all the fin insertion grooves 21 near the bottom of the groove.

Furthermore, the length of the punched edge of the punched hole 22 is shorter than the length of the fin slot 21, so that only a part of the fins of the heat dissipation block 1 passes through the punched hole 22 after being inserted into the fin slot 21, thereby completing the punching of the short fins 13.

Further, the jig for blanking the radiating block further comprises an ejection block 3, and in the embodiment, the ejection block 3 is made of hot forming steel; the jig body 2 forms an ejection hole 23 on the other side of the opening of the fin slot 21, the ejection hole 23 extends at least to the bottom of the slot over the fin slot 21, that is, the opening of the ejection hole 23 is located on the rear side of the jig body 2, and the ejection hole 23 extends to the front side of the jig body 2 and passes over the bottom of the fin slot 21; the ejector block 3 is inserted into the ejector hole 23 so that the ejector block 3 can slide in the ejector hole 23.

Furthermore, a limit bump 31 for limiting the stroke of the ejection block 3 is formed at one end of the ejection block 3 outside the jig body 2, and the limit bump 31 and the body of the ejection block 3 are integrally formed; the limit bump 31 can abut against the outer wall of the jig body 2, and when the limit bump 31 abuts against the outer wall of the jig body 2, the ejector block 3 reaches the limit stroke, and at this time, the front end of the ejector block 3 already passes over the bottom of the fin slot 21 and reaches the end of the ejector hole 23.

This kind of gauge for radiating block blanking is installed on the workstation of punch press, installs the blanking sword on the drift of punch press, and this blanking sword can get into blanking hole 22.

Referring to fig. 5, when the jig for blanking a heat dissipation block is used, the fins of the heat dissipation block 1 are correspondingly inserted into the fin slots 21 in a manner of manual feeding, robot feeding or cylinder pushing, at this time, a part of the fins pass through the fin slots 21 and enter the blanking hole 22, and the tail end of the fins push the ejection block 3 out for a part of the stroke; then the punch press operates, the punch drives the blanking cutter to punch downwards, the blanking cutter enters the blanking hole 22, the fin part in the blanking hole 22 is cut off, the rest part of the cut fin is the short fin 13, and the fin without being punched is the long fin 12; finally, pushing the ejection block 3 by manpower, a robot or an air cylinder to enable the ejection block 3 to move towards the inner side of the jig body 2, so as to push the long fins 12 of the heat dissipation block 1, further push the long fins 12 and the short fins 13 out of the fin slots 21, enable the whole heat dissipation block 1 to be separated from the jig for blanking of the heat dissipation block, and complete blanking, thereby completing the blanking process of the heat dissipation block 1; when the ejection block 3 reaches the limit stroke, the limit bump 31 is abutted against the outer wall of the jig body 2.

According to the jig for blanking the radiating block, the blanking hole 22 passes through the fin slot 21, the fin part in the blanking hole 22 is cut off by using the blanking knife, the rest part of the cut fin is the short fin 13, and the un-blanked fin is the long fin 12, so that the blanking process of the radiating block 1 is completed, the steps are simple, and the operation is convenient; because of the protection of the fin slot 21, the short fins 13 of the heat dissipation block 1 are not easy to incline in the blanking process; in addition, the fins are cut by using a blanking process, the waste materials are metal blocks, and the recovery value is high.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A jig for blanking a heat dissipation block is characterized by comprising a jig body; one side of the jig body is recessed inwards to form a fin slot, and the jig body is further provided with a blanking hole which penetrates through the jig body from top to bottom, wherein the blanking hole passes through the fin slot.

2. The jig for blanking the heat dissipation block of claim 1, wherein: the fin slots are arranged on the same side of the jig body at intervals, and the blanking holes pass through all the fin slots.

3. The jig for blanking the heat dissipation block of claim 1, wherein: the length of the punching edge of the punching hole is shorter than that of the fin slot.

4. The jig for blanking the heat dissipation block of claim 1, wherein: the device also comprises an ejection block;

the jig body forms an ejection hole opposite to the other side of the opening of the fin slot, and the ejection hole at least extends to the slot bottom of the fin slot;

the ejector block is inserted into the ejector hole.

5. The jig for blanking of heat dissipation blocks as defined in claim 4, wherein: one end of the ejection block, which is positioned outside the jig body, is provided with a limit lug for limiting the stroke of the ejection block, and the limit lug can abut against the outer wall of the jig body.