Cooling fin jig and CNC machining equipment

Abstract

The utility model relates to the technical field of jigs, in particular to a radiating fin jig and CNC machining equipment. The heat dissipation fin jig comprises supporting legs, a bottom plate, limiting blocks and a positioning plate. The bottom plate is arranged on the supporting legs; the limiting blocks are arranged on the bottom plate at intervals in a lifting mode, and the positioning plate is arranged between the limiting blocks; a plurality of limiting columns are arranged on the positioning plate, and the cooling fins are embedded in the limiting columns; the output end of the first driving source is connected with the limiting block; the trapezoidal parts of the limiting blocks can tightly press the edges of the heat dissipation fins. During machining, the limiting block rises, and the heat dissipation fins are placed on the positioning plate, so that the heat dissipation fins are embedded in the limiting column; and then the first driving source drives the limiting block to press downwards, so that the trapezoidal part firmly presses the edge of the heat dissipation fin, and therefore, the heat dissipation fin can be firmly fixed on the positioning plate without any looseness, and the machining precision can be guaranteed. The structure is simpler to process and higher in working efficiency.

Description

Technical Field

[0001] The utility model relates to the technical field of jigs, in particular to a heat sink fin jig and a CNC machining device. Background Art

[0002] Some heat sink fins on the market are first formed by die casting and then put into a CNC device for finish machining. During machining, the heat sink fins are first fixed on a jig and then fed into the CNC device for machining. Some jigs fix the heat sink fins by means of positioning holes or positioning grooves. Such jigs can only be fixed horizontally and cannot solve the problem of longitudinal jumping during machining, which will affect the machining accuracy.

[0003] For example, a high-precision heat sink die-casting CNC machining jig disclosed in Chinese Patent Application No.: CN202221239243.7. Specifically disclosed is that "the jig assembly includes a jig body, a bearing platform is arranged on one side of the jig body, four reference positioning holes are opened inside the bearing platform, the four reference positioning holes are respectively arranged at four corners inside the bearing platform, and circular grooves are opened at four corners inside the bearing platform". The circular grooves and positioning holes inside the bearing platform position and fix the heat sink, however, this design can only fix the heat sink fins horizontally and cannot solve the problem of longitudinal jumping during machining, which will affect the machining accuracy. Summary of the Utility Model

[0004] In view of this, in view of the deficiencies of the existing technology, the main purpose of the present utility model is to provide a heat sink fin jig, which can firmly press the heat sink fins and the heat sink fins will not loosen, which is beneficial to ensuring the machining accuracy, thus overcoming the deficiencies of the existing technology.

[0005] To achieve the above purpose, the present utility model adopts the following technical solutions:

[0006] The present application provides a heat sink fin jig, including legs, a bottom plate, limit blocks, and a positioning plate; the bottom plate is arranged on the legs; the limit blocks are arranged on the bottom plate at intervals in a liftable manner, and the positioning plate is arranged between the limit blocks; a plurality of limit posts are arranged on the positioning plate, and the heat sink fins are embedded on the limit posts; the output end of the first driving source is connected to the limit blocks; the trapezoidal part of the limit block can press the edge of the heat sink fin.

[0007] Preferably, the trapezoidal part is in the shape of an isosceles trapezoid, and the upper base angle A of the isosceles trapezoid is between 15 - 60°.

[0008] Preferably, a first inclined surface is arranged at the overlapping position of the trapezoidal part, and the two first inclined surfaces can be pressed together up and down.

[0009] Preferably, the left and right edges of the bottom plate are provided with limiting edges, and the limiting edges are provided with second inclined surfaces, and the second inclined surfaces are adapted to the waists of the trapezoidal portions.

[0010] Preferably, the bottom plate is provided with a guiding hole; the guiding portion of the limiting block moves up and down in the guiding hole.

[0011] Preferably, each of the limiting blocks is connected to at least two of the first driving sources.

[0012] Preferably, there are six limiting blocks, and two limiting blocks correspond to one positioning plate.

[0013] Preferably, there are at least two legs, and a plurality of weight-reducing holes are formed in each leg in a hollowed-out manner; a flexible pad is attached to the trapezoidal portion, and the flexible pad presses the heat dissipation fins.

[0014] Preferably, a top plate is provided at the bottom of the bottom plate, and a plurality of ejector pins are provided on the top plate. The output end of the second driving source is connected to the top plate, and the ejector pins can eject from the positioning plate.

[0015] A CNC machining device includes the heat dissipation fin fixture described above; the heat dissipation fin fixture is arranged on the machine tool.

[0016] Compared with the prior art, the present invention has obvious advantages and beneficial effects. Specifically, as can be seen from the above technical solutions, during machining, the limiting blocks rise, and the heat dissipation fins are placed on the positioning plates, so that the heat dissipation fins are embedded in the limiting columns; then the first driving source drives the limiting blocks to press down, so that the trapezoidal portions firmly press the edges of the heat dissipation fins, so that the heat dissipation fins can be firmly fixed on the positioning plates without any looseness, which is beneficial to ensuring the machining accuracy.

[0017] At the same time, the structure that makes the trapezoidal portion firmly press the heat dissipation fins is simpler to machine and has higher working efficiency. Description of the Drawings

[0018] Figure 1 is a schematic diagram during machining of Embodiment 1 of the present invention.

[0019] Figure 2 is a first exploded schematic diagram of Embodiment 1 of the present invention.

[0020] Figure 3 is a second exploded schematic diagram of Embodiment 1 of the present invention.

[0021] Figure 4 is a cross-sectional schematic diagram of Embodiment 1 of the present invention.

[0022] Figure 5 is a cross-sectional schematic diagram of Embodiment 2 of the present invention.

[0023] Description of the attached drawing reference numerals:

[0024] 10. Bottom plate; 11. Limit edge; 12. Second inclined surface; 13. Leg; 20. Positioning plate; 21. Convex edge; 22. Limit post; 210. Limit block; 211. Trapezoidal part; 212. Guiding part; 213. First inclined surface; 214. First driving source; 220. Second driving source; 221. Top plate; 222. Thimble; 30. Heat dissipation fin. Detailed implementation manners

[0025] In order to further elaborate on the technical means and effects adopted by the present utility model to achieve the intended utility model purpose, the following will, in conjunction with the attached drawings and preferred embodiments, detail the specific implementation manners, structures, features and their effects of the present utility model as follows.

[0026] Embodiment 1

[0027] Please refer to Figures 1 to 4 as shown, which shows the specific structure of the preferred embodiment of the present utility model, and is a heat dissipation fin jig.

[0028] Among them, the first driving source 214 drives the trapezoidal part 211 of the limit block 210 to press against the edge of the heat dissipation fin 30, so that the heat dissipation fin 30 is firmly fixed without loosening, which is more conducive to ensuring the quality.

[0029] The present application provides a heat dissipation fin fixture, which includes legs 13, a bottom plate 10, a limit block 210, and a positioning plate 20; the bottom plate 10 is arranged on the legs 13; the limit blocks 210 are arranged on the bottom plate 10 at intervals in a liftable manner, and the positioning plate 20 is arranged between the limit blocks 210; a number of limit posts 22 are arranged on the positioning plate 20, and the heat dissipation fins 30 are embedded on the limit posts 22; the output end of the first driving source 214 is connected to the limit block 210; the trapezoidal part 211 of the limit block 210 can press the edge of the heat dissipation fin 30. In this embodiment, the left and right edges of the positioning plate 20 have convex edges 21. When loading the heat dissipation fins 30, the heat dissipation fins 30 are placed on the positioning plate 20, and the two convex edges 21 clamp the heat dissipation fins 30. At the same time, the heat dissipation fins 30 are embedded on the limit posts 22, so that the left and right movement of the heat dissipation fins 30 can be prevented. The limit posts 22 in this embodiment are in the shape of long columns and can be inserted into the heat dissipation grooves between the fins. In addition, positioning pins can also be arranged on the positioning plate 20, and the positioning pins can pass through the heat dissipation fins 30, so that the heat dissipation fins 30 can be accurately positioned. Therefore, when the first driving source 214 drives the trapezoidal part 211 of the limit block 210 to press on the edge of the heat dissipation fin 30, the heat dissipation fin 30 is accurately positioned and there is no looseness, ensuring the processing quality. In addition, when the heat dissipation fins 30 are placed on the positioning plate 20, the two convex edges 21 clamp the heat dissipation fins 30. At the same time, the heat dissipation fins 30 are embedded on the limit posts 22, and then the limit block 210 presses on the heat dissipation fin 30. This structure is simple and is conducive to improving work efficiency. The edge of the heat dissipation fin 30 in this embodiment also has an inclined surface adapted to the trapezoidal part 211.

[0030] Preferably, the trapezoidal part 211 is in the shape of an isosceles trapezoid, and the upper base angle A of the isosceles trapezoid is between 15° and 60°. The angle A can be values such as 15°, 30°, 45°, 60°, etc., and can be specifically set according to needs.

[0031] Preferably, a first inclined surface 213 is arranged at the overlapping position of the trapezoidal part 211, and the two first inclined surfaces 213 can be pressed together up and down. There are several limit blocks 210, and the limit blocks 210 have a certain length, and its cross-section is a combination of an isosceles trapezoid and a rectangle. When the limit block 210 moves downward to press the heat dissipation fin 30, the upper first inclined surface 213 presses the lower first inclined surface 213, so that the two limit blocks 210 can be overlapped and pressed together, and the integrity and firmness are better.

[0032] Preferably, limit edges 11 are arranged on the left and right edges of the bottom plate 10, a second inclined surface 12 is arranged on the limit edges 11, and the second inclined surface 12 is adapted to the waist of the trapezoidal part 211. When the limit block 210 presses the heat dissipation fin 30 downward, the waist surface of the trapezoidal part 211 presses on the second inclined surface 12, which can play a good role in extrusion and positioning.

[0033] Preferably, a guiding hole is provided on the bottom plate 10; the guiding portion 212 of the limiting block 210 moves up and down in the guiding hole. The guiding portion 212 of the limiting block 210 moves up and down in the guiding hole, which can control the movement track of the limiting block 210 and prevent the limiting block 210 from deviating.

[0034] Preferably, each of the limiting blocks 210 is connected to at least two of the first driving sources 214. The first driving source 214 is preferably a cylinder. Two first driving sources 214 drive one of the limiting blocks 210 to move up and down simultaneously, so that the force is more balanced and the effect is better.

[0035] Preferably, there are six limiting blocks 210, and two limiting blocks 210 correspond to one positioning plate 20, so that the positioning of four radiator fins can be completed at one time, and the working efficiency is high.

[0036] Preferably, there are at least two legs 13, and a number of weight-reducing holes 14 are formed in each leg 13 in a hollow manner; a flexible pad is attached to the trapezoidal portion 211, and the flexible pad presses the heat dissipation fin 30. In this embodiment, there are three legs 13, which are fixed at equal intervals at the bottom of the bottom plate 10, and the force is very uniform. The flexible pad is one of elastic plastic, elastic silica gel, and elastic rubber. The flexible pad can prevent the heat dissipation fin 30 from being damaged.

[0037] A CNC machining device includes the heat dissipation fin fixture described above; the heat dissipation fin fixture is arranged on the machine tool, which is beneficial to ensuring the machining accuracy and improving the working efficiency of workers.

[0038] Embodiment 2

[0039] Please refer to Figure 5 As shown, a top plate 221 is provided at the bottom of the bottom plate 10, and a number of ejector pins 222 are provided on the top plate 221. The output end of the second driving source 220 is connected to the top plate 221, and the ejector pins 222 can eject from the positioning plate 20. The second driving source 220 is preferably a cylinder. The second driving source 220 drives the top plate 221 to rise, and the ejector pins 222 lift the product on the positioning plate 20, which is convenient for workers to take out the finished product.

[0040] In summary, the design focus of the present utility model is that the heat dissipation fin 30 is placed on the positioning plate 20, and the heat dissipation fin 30 is embedded in the limiting column 22; the first driving source 214 drives the limiting block 210 to press down, so that the trapezoidal portion 211 firmly presses the edge of the heat dissipation fin 30, and the heat dissipation fin 30 will not loosen at all, which is beneficial to ensuring the machining accuracy. The structure that enables the trapezoidal portion 211 to firmly press the heat dissipation fin 30 is simpler to process and has higher working efficiency.

[0041] The above are only the preferred embodiments of the present utility model, and do not impose any form of limitation on the present utility model. Although the present utility model has been disclosed above with the preferred embodiments, it is not intended to limit the present utility model. Any person skilled in the art can make some changes or modifications to equivalent embodiments with equivalent changes within the scope of the technical solution of the present utility model by using the above-disclosed technical content. However, as long as it does not depart from the content of the technical solution of the present utility model, any brief modifications, equivalent changes and modifications made to the above embodiments according to the technical essence of the present utility model still fall within the scope of the technical solution of the present utility model.

Claims

1. A heat sink fin fixture, characterized in that: It includes a support leg, a base plate, a limit block, and a positioning plate; the base plate is arranged on the support leg; the limit blocks are arranged on the base plate in a liftable manner and at intervals, and the positioning plate is arranged between the limit blocks; a plurality of limit columns are arranged on the positioning plate, and the heat dissipation fins are embedded on the limit columns; the output end of the first driving source is connected to the limit block; the trapezoidal part of the limit block can press the edge of the heat dissipation fin.

2. The heat sink fixture according to claim 1, characterized in that: The trapezoidal portion is in the shape of an isosceles trapezoid, and an upper base angle A of the isosceles trapezoid is between 15° and 60°.

3. The heat sink fixture according to claim 1, characterized in that: The overlapping positions of the trapezoidal portions are provided with first inclined surfaces, and the two first inclined surfaces can be pressed together up and down.

4. The heat sink fin fixture according to claim 1, characterized in that: The left and right edges of the bottom plate are provided with limiting edges, the limiting edges are provided with second inclined surfaces, and the second inclined surfaces are adapted to the waist of the trapezoidal portion.

5. The heat sink fixture according to claim 1, characterized in that: A guide hole is arranged on the bottom plate; the guide part of the limit block moves up and down in the guide hole.

6. The heat sink fixture according to claim 1, characterized in that: Each of the limit blocks is connected to at least two of the first driving sources.

7. A heat sink fin fixture according to any one of claims 1 to 6, characterized in that: There are six limit blocks, and two limit blocks correspond to one positioning plate.

8. The heat sink fixture according to claim 1, characterized in that: There are at least two supporting legs, and each supporting leg is hollowed out to form a plurality of weight-reducing holes; a flexible pad is attached to the trapezoidal portion, and the flexible pad presses the heat dissipation fins.

9. The heat sink fixture according to claim 1, characterized in that: A top plate is arranged at the bottom of the base plate, and a plurality of ejector pins are arranged on the top plate. The output end of the second driving source is connected to the top plate, and the ejector pins can be ejected from the positioning plate.

10. A CNC processing equipment, characterized in that: The invention comprises a heat sink fin jig as described in any one of claims 1 to 9; the heat sink fin jig is arranged on a machine tool.

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