A hole expanding device for a heat dissipation pipe

Abstract

The present invention discloses a hole-expanding device for a heat dissipation pipe, which includes a housing, a support plate arranged in the inner cavity of the housing, and a hole-expanding mechanism slidably connected to the support plate. The hole-expanding mechanism includes a first support rod and a second support rod slidably connected to the first support rod. A moving block is arranged at the side end of the second support rod, and a through hole is arranged at one end of the moving block away from the second support rod. A power rod is slidably arranged in the through hole. A cylinder is arranged at the top of the housing, and the piston rod of the cylinder is connected to a power block at the top of the power rod. An inclined surface is formed at one end of the moving block away from the second support rod. The power rod is inclined, the power block is horizontally arranged, and the side of the power block is in contact with the inclined surface of the moving block. When the cylinder works, it drives the moving rod to move, drives the moving block to move, drives the first support rod and the second support rod to move into the inner cavity of the end of the heat dissipation pipe, and expands and fixes the inner cavity of the end of the heat dissipation pipe in the required inner hole. The structure is simple and the operation is convenient. It can expand the inner cavity of the end of the heat dissipation pipe at one time, improving the work efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of machining equipment, and particularly relates to a hole expanding device for heat dissipation pipes. Background Art

[0002] During the machining process, it is necessary to perform hole expanding and fixing operations on the heat dissipation pipes placed in the round holes, and then expand the inner cavity of the end of the heat dissipation pipe to form a certain pressing force with the through holes on the cooler housing, so as to fix the heat dissipation pipes. Most of the existing machining methods use the rotation of the rotating shaft to increase the aperture. This method requires working on the aperture of the same heat dissipation pipe for a long time, and the work efficiency is low. Therefore, a hole expanding device for heat dissipation pipes is designed. Summary of the Invention

[0003] The purpose of this part is to outline some aspects of the embodiments of the present invention and briefly introduce some preferred embodiments. Simplifications or omissions may be made in this part, as well as in the abstract and title of the specification of this application, to avoid obscuring the purpose of this part, the abstract, and the title. However, such simplifications or omissions shall not be used to limit the scope of the present invention.

[0004] In view of the problems existing in the above-mentioned existing hole expanding device for heat dissipation pipes, the present invention is proposed.

[0005] Therefore, the purpose of the present invention is to provide a hole expanding device for heat dissipation pipes, the purpose of which is to make the working method simple and convenient and improve the work efficiency.

[0006] To solve the above technical problems, the present invention provides the following technical solution: A hole expanding device for heat dissipation pipes, characterized in that: it includes a housing, a support plate arranged in the inner cavity of the housing, and a hole expanding mechanism slidably connected to the support plate. The hole expanding mechanism includes a first support rod and a second support rod slidably connected to the first support rod. A moving block is arranged at the side end of the second support rod. A through hole is opened at one end of the moving block away from the second support rod. A power rod is slidably arranged in the through hole. A cylinder is arranged at the top of the housing. The piston rod of the cylinder is connected to a power block at the top of the power rod. An inclined surface is opened at one end of the moving block away from the second support rod. The power rod is inclined, the power block is horizontally arranged, and one side edge of one end of the power block is in contact with the inclined surface of the moving block.

[0007] As a preferred solution of the hole expanding device for heat dissipation pipes of the present invention, wherein: a through groove is opened on the first support rod, and a cylindrical rod is arranged on the side wall of the second support rod close to the first support rod. The cylindrical rod can be slidably connected in the through groove.

[0008] As a preferred embodiment of the hole-expanding device for heat dissipation pipes according to the present invention, wherein: a sliding groove is formed on the side wall of the second support rod close to the first support rod, a sliding block is arranged on the side wall of the first support rod close to the second support rod, and the sliding block can be slidably connected in the sliding groove.

[0009] As a preferred embodiment of the hole-expanding device for heat dissipation pipes according to the present invention, wherein: a groove is formed on the side wall of the support plate close to the first support rod, a positioning block is arranged on the side wall of one end of the first support rod close to the support plate, and the positioning block can be clamped in the groove.

[0010] As a preferred embodiment of the hole-expanding device for heat dissipation pipes according to the present invention, wherein: an elastic spring is arranged in the groove, one end of the elastic spring is in contact with the bottom end of the groove, and a top plate is connected to the end of the elastic spring far from the bottom of the groove.

[0011] As a preferred embodiment of the hole-expanding device for heat dissipation pipes according to the present invention, wherein: a first limiting plate is arranged on the side wall of one end of the first support rod far from the support plate, a second limiting plate is arranged on the side wall of the second support rod far from the support plate, and the first limiting plate and the second limiting plate can form a circular ring shape.

[0012] As a preferred embodiment of the hole-expanding device for heat dissipation pipes according to the present invention, wherein: a first chamfered support plate is arranged at the connection of the first limiting plate and the first support rod, a second chamfered support plate is arranged at the connection of the second limiting plate and the second support rod, and the first chamfered support plate and the second chamfered support plate can form a circular chamfered support plate.

[0013] As a preferred embodiment of the hole-expanding device for heat dissipation pipes according to the present invention, wherein: a limiting groove is further formed on the inner side wall of the support plate, a limiting block is arranged on the side wall of the moving block, and the limiting block is slidably connected in the limiting groove.

[0014] The beneficial effects of the present invention: The present invention discloses a hole-expanding device for heat dissipation pipes. Through the settings of the air cylinder, the moving rod, the moving block, the first support rod and the second support rod, when the air cylinder works to drive the moving rod to move up and down, it can drive the moving block to move, and then drive the first support rod and the second support rod to move into the inner cavity at the end of the heat dissipation pipe, and expand and fix the inner cavity at the end of the heat dissipation pipe in the required inner hole. The structure of the present invention is simple and easy to operate, and can expand the inner cavity at the end of the heat dissipation pipe at one time, improving the work efficiency. Description of the Drawings

[0015] To more clearly illustrate the technical solutions of the embodiments of the present invention, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings. Among them:

[0016] Figure 1 It is a schematic diagram of the overall structure of the hole expanding device for the heat dissipation pipe of the present invention.

[0017] Figure 2 It is a partial cross-sectional view of the hole expanding device for the heat dissipation pipe of the present invention.

[0018] Figure 3 Is Figure 2 The enlarged view of A in

[0019] Figure 4 It is a partial cross-sectional view of the hole expanding device for the heat dissipation pipe of the present invention.

[0020] Figure 5 It is a schematic disassembled view of the hole expanding device for the heat dissipation pipe of the present invention.

[0021] Figure 6 It is a schematic view of another angle of the disassembled drawing of the hole expanding device for the heat dissipation pipe of the present invention.

[0022] In the figure: housing 300, support plate 100, hole expanding mechanism 200, first support rod 201, second support rod 202, moving block 203, through hole 203a, power rod 204, cylinder 301, power block 204a, inclined surface 203b, through groove 201a, cylindrical rod 202a, sliding groove 202b, sliding block 201b, groove 101, positioning block 201c, elastic spring 102, top plate 103, first limiting plate 205, second limiting plate 206, first chamfered support plate 207, second chamfered support plate 208, limiting groove 104, limiting block 203c. Specific embodiments

[0023] To make the above objects, features and advantages of the present invention more obvious and understandable, the following will make a detailed description of the specific embodiments of the present invention in conjunction with the drawings in the specification.

[0024] In the following description, many specific details are set forth in order to fully understand the present invention. However, the present invention can also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the connotation of the present invention. Therefore, the present invention is not limited by the specific embodiments disclosed below.

[0025] Secondly, the so-called "one embodiment" or "embodiment" herein refers to specific features, structures, or characteristics that may be included in at least one implementation manner of the present invention. The phrase "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor is it an individual or alternative embodiment that is mutually exclusive with other embodiments.

[0026] Next, the present invention will be described in detail with reference to the schematic diagrams. When describing the embodiments of the present invention in detail, for the convenience of explanation, the cross-sectional views showing the device structure will be locally enlarged out of the general proportion, and the schematic diagrams are only examples and should not limit the scope of protection of the present invention herein. In addition, the three-dimensional spatial dimensions of length, width, and depth should be included in actual production.

[0027] Referring to Figures 1 to 6 , an embodiment of the present invention provides a hole-expanding device for a heat dissipation pipe, which includes a housing 300, a support plate 100 disposed in the inner cavity of the housing 300, and a hole-expanding mechanism 200 slidably connected to the support plate 100.

[0028] The hole-expanding mechanism 200 includes a first support rod 201 and a second support rod 202 slidably connected to the first support rod 201. A moving block 203 is provided at the side end of the second support rod 202. A through hole 203a is formed at one end of the moving block 203 away from the second support rod 202. A power rod 204 is slidably disposed in the through hole 203a. The through hole 203a can limit the position of the power rod 204, and at the same time, the movement of the power rod 204 can drive the movement of the moving block 203.

[0029] Among them, the power rod 204 is inclined. A power block 204a is horizontally provided at the top of the power rod 204. An inclined surface 203b is formed at one end of the moving block 203 away from the second support rod 202. The inclination angle of the power rod 204 is the same as the inclination angle of the inclined surface 203b. The power block 204a is horizontally provided, and one end side of the power block 204a is in contact with the inclined surface 203b of the moving block 203. A cylinder 301 is provided at the top of the housing 300. The piston rod of the cylinder 301 is fixedly connected to the power block 204a at the top of the power rod 204. When the cylinder 301 works, it can drive the power block 204a to move up and down. At this time, one end side of the power block 204a in contact with the inclined surface 203b of the moving block 203 will squeeze the moving block 203, thereby driving the movement of the moving block 203.

[0030] A limiting groove 104 is further formed on the inner side wall of the support plate 100. A limiting block 203c is provided on the side wall of the moving block 203. The limiting block 203c is slidably connected in the limiting groove 104. The sliding connection between the limiting block 203c and the limiting groove 104 can prevent the moving block 203 from deviating from the linear motion track during the working process, and facilitate the second support rod 202 to exert a force on the first support rod 201.

[0031] A through groove 201a is formed in the first support rod 201. A cylindrical rod 202a is provided on the side wall of the second support rod 202 close to the first support rod 201. The cylindrical rod 202a can be slidably connected in the through groove 201a. The moving block 203 is fixedly connected to the end of the second support rod 202. The moving block 203 can drive the second support rod 202 to move. At the same time, the cylindrical rod 202a on the second support rod 202 can drive the first support rod 201 to move.

[0032] A sliding groove 202b is formed in the side wall of the second support rod 202 close to the first support rod 201. A sliding block 201b is provided on the side wall of the first support rod 201 close to the second support rod 202. The sliding block 201b can be slidably connected in the sliding groove 202b. The sliding block 201b and the sliding groove 202b can be slidably connected. At the same time, the sliding block 201b can be slidably clamped in the sliding groove 202b, so that the first support rod 201 and the second support rod 202 can be limited and connected together. The first support rod 201 and the second support rod 202 can be combined into a whole cylindrical shape, and the whole cylinder formed by the first support rod 201 and the second support rod 202 is in interference fit with the inner hole of the end of the heat dissipation pipe. The contact surface between the first support rod 201 and the second support rod 202 is arranged in an inclined plane, so as to ensure that the second support rod 202 can generate a force deviating from the straight line direction on the first support rod 201 during the linear movement process. At the same time, the first support rod 201 will generate an opposite acting force on the second support rod 202, so as to achieve the effect of enlarging the aperture of the end of the heat dissipation pipe.

[0033] A groove 101 is formed in the side wall of the support plate 100 close to the first support rod 201. A positioning block 201c is provided on the side wall of one end of the first support rod 201 close to the support plate 100. The positioning block 201c can be clamped in the groove 101. The support plate 100 is fixedly arranged in the inner cavity of the housing 300. During the movement of the first support rod 201, the positioning block 201c can be clamped in the groove 101 to limit the movement range of the first support rod 201, preventing the first support rod 201 from shooting out of the inner cavity of the housing 300. At the same time, the heights of the two side walls of the groove 101 are different. The side wall of the groove 101 close to the moving block 203 is lower than the side wall of the other end, which is convenient for the first support rod 201 to withdraw from the groove 101.

[0034] An elastic spring 102 is arranged in the groove 101. One end of the elastic spring 102 is in contact with the bottom end of the groove 101. The end of the elastic spring 102 far from the bottom of the groove 101 is connected with a top plate 103. When the positioning block 201c on the first support rod 201 is clamped in the groove 101, it will squeeze the top plate 103 and the elastic spring 102 at the same time. When the work is finished, the elastic spring 102 generates an elastic force to eject the first support rod 201 from the groove 101.

[0035] A first limiting plate 205 is arranged on the side wall of one end of the first support rod 201 away from the support plate 100, and a second limiting plate 206 is arranged on the side wall of the second support rod 202 away from the support plate 100. The first limiting plate 205 and the second limiting plate 206 can form a circular ring shape. The diameter of the circular ring shape formed by the first limiting plate 205 and the second limiting plate 206 is larger than the diameter of the heat dissipation pipe, so as to prevent the first support rod 201 and the second support rod 202 from extending too far into the inner hole of the heat dissipation pipe during the process of supporting the hole.

[0036] A first chamfer support plate 207 is arranged at the connection between the first limiting plate 205 and the first support rod 201, and a second chamfer support plate 208 is arranged at the connection between the second limiting plate 206 and the second support rod 202. The first chamfer support plate 207 and the second chamfer support plate 208 can form a circular chamfer support plate. The circular chamfer support plate formed by the first chamfer support plate 207 and the second chamfer support plate 208 is convenient for expanding the end edge of the heat dissipation pipe to form a chamfer shape, which is convenient for fixing the heat dissipation pipe.

[0037] Operation process: Initially, the first support rod 201 and the second support rod 202 are arranged in a staggered manner. First, the end of the first support rod 201 is placed in the inner hole of the end of the heat dissipation pipe, and then the air cylinder 301 is started to drive the power rod 204 to move downward. At this time, the power block 204a will squeeze the inclined surface 203b of the moving block 203, thereby driving the moving block 203 to move linearly, and then driving the second support rod 202 to move linearly. At the same time, the circular chamfer support plate formed by the first chamfer support plate 207 and the second chamfer support plate 208 supports in the inner hole of the end of the heat dissipation pipe. At this time, the circular ring formed by the first limiting plate 205 and the second limiting plate 206 abuts against the end of the heat dissipation pipe. Since the contact surface between the first support rod 201 and the second support rod 202 is arranged in an inclined surface, the second support rod 202 generates a force deviating from the straight line on the first support rod 201, and at the same time, the first support rod 201 generates an opposite acting force on the second support rod 202, thereby being able to achieve the effect of expanding the aperture of the end of the heat dissipation pipe, and then fixing the heat dissipation pipe.

[0038] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced without departing from the spirit and scope of the technical solutions of the present invention, and they should all be covered within the scope of the claims of the present invention.

Claims

1. A hole expanding device for a heat dissipation pipe, characterized in that: It includes a housing (300), a support plate (100) arranged in the inner cavity of the housing (300), and a hole-supporting mechanism (200) slidably connected to the support plate (100). The hole-supporting mechanism (200) includes a first support rod (201) and a second support rod (202) slidably connected to the first support rod (201). A moving block (203) is arranged at the side end of the second support rod (202). A through hole (203a) is formed at one end of the moving block (203) away from the second support rod (202). A power rod (204) is slidably arranged in the through hole (203a). A cylinder (301) is arranged at the top of the housing (300). The piston rod of the cylinder (301) is connected to a power block (204a) at the top of the power rod (204). An inclined surface (203b) is formed at one end of the moving block (203) away from the second support rod (202). The power rod (204) is inclined, the power block (204a) is horizontally arranged, and one side edge of the power block (204a) is in contact with the inclined surface (203b) of the moving block (203).

2. The hole expanding device for a heat dissipation pipe according to claim 1, wherein: A through groove (201a) is formed on the first support rod (201). A cylindrical rod (202a) is arranged on the side wall of the second support rod (202) close to the first support rod (201). The cylindrical rod (202a) can be slidably connected in the through groove (201a).

3. The hole expanding device for heat dissipation pipes according to claim 2, wherein: A chute (202b) is formed on the side wall of the second support rod (202) close to the first support rod (201). A slider (201b) is arranged on the side wall of the first support rod (201) close to the second support rod (202). The slider (201b) can be slidably connected in the chute (202b).

4. The hole expanding device for heat dissipation pipes according to claim 1, characterized in that: A groove (101) is formed on the side wall of the support plate (100) close to the first support rod (201). A positioning block (201c) is arranged on the side wall of one end of the first support rod (201) close to the support plate (100). The positioning block (201c) can be clamped in the groove (101).

5. The hole expanding device for heat dissipation pipes according to claim 4, characterized in that: An elastic spring (102) is arranged in the groove (101). One end of the elastic spring (102) is in contact with the bottom end of the groove (101). One end of the elastic spring (102) away from the bottom of the groove (101) is connected to a top plate (103).

6. The hole expanding device for heat dissipation pipes according to claim 1, characterized in that: A first limiting plate (205) is arranged on the side wall of one end of the first support rod (201) away from the support plate (100). A second limiting plate (206) is arranged on the side wall of the second support rod (202) away from the support plate (100). The first limiting plate (205) and the second limiting plate (206) can form a circular ring shape together.

7. The hole expanding device for heat dissipation pipes according to claim 6, wherein: A first chamfered support plate (207) is provided at the connection between the first limiting plate (205) and the first support rod (201), a second chamfered support plate (208) is provided at the connection between the second limiting plate (206) and the second support rod (202), and the first chamfered support plate (207) and the second chamfered support plate (208) can be combined into a circular chamfered support plate.

8. The hole expanding device for heat dissipation pipes according to claim 1, characterized in that: A limiting groove (104) is further formed on the inner side wall of the support plate (100), a limiting block (203c) is provided on the side wall of the moving block (203), and the limiting block (203c) is slidably connected in the limiting groove (104).

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