Positioning clamp for machining cooling fins

Abstract

The utility model discloses a positioning fixture for processing radiating fins in the field of machining, which comprises a mounting plate, a support plate and a base, two groups of clamping grooves are symmetrically arranged in the center of one side of the mounting plate, an air passage I and an air passage II are arranged on the other side of the mounting plate, a sealing groove is arranged on the circumference of the air passage I, and a sealing ring is arranged on the sealing groove. The mounting plate is symmetrically provided with supporting plates connected through bolts in a penetrating mode, ejector pin holes penetrating through the mounting plate and the supporting plates are formed in the periphery of the clamping groove, and a machine base connected in a right-angle mode is welded to the bottoms of the supporting plates. According to the utility model, through the design of the clamping groove, the radiating fin can be accurately positioned at one time, the problem of processing precision caused by position error of manual alignment is prevented, meanwhile, a large amount of alignment time is saved, and the radiating fin is automatically fixed through the introduction and adsorption effect of high negative pressure gas and the assistance of the cylinder ejector pin, so that the production efficiency is improved. Manual fixing is avoided, time and labor are saved, production efficiency is high, and large-batch production of the cooling fins is facilitated.

Description

Technical Field

[0001] The utility model relates to the field of mechanical processing, in particular to a positioning fixture for processing a heat sink. Background Art

[0002] Heat sinks are commonly used on various equipment parts. They are mainly used to conduct heat and cool down parts that are prone to heat generation, ensuring that the parts are always at a reasonable working temperature so that the overall equipment can operate normally. Common heat sinks are mostly thin-walled, multi-layer structures with large specific surface areas and are difficult to process.

[0003] The processing of heat sinks is mostly carried out by slotting processing technology, and multiple groups of heat sinks can be processed at the same time. However, before the existing processing process, the heat sink needs to be manually aligned and fixed, which consumes a lot of manpower and working hours. Therefore, technical personnel in this field provide a positioning fixture for heat sink processing to solve the problems raised in the above background technology. Utility Model Content

[0004] The purpose of the utility model is to provide a positioning fixture for processing a heat sink, so as to solve the problems raised in the above-mentioned background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A positioning fixture for heat sink processing comprises a mounting plate, a support plate and a machine base, wherein one side of the mounting plate is symmetrically provided with two assembly clamping grooves in the center, the other side of the mounting plate is provided with air duct one and air duct two, a sealing groove is provided around the air duct, the mounting plate is symmetrically provided with the support plate connected by bolts penetrating therethrough, the periphery of the mounting clamping groove is provided with an ejector hole penetrating the mounting plate and the support plate, the bottom of the support plate is welded with the machine base connected at a right angle, welded ribs are provided on both sides of the angle between the machine base and the support plate, a bracket is symmetrically welded on the machine base, a cylinder fixed with bolts is provided above the bracket, a reciprocating ejector pin is penetrated through the ejector pin hole, the ejector pin is welded with a back plate, and the back plate is welded to the telescopic rod pushed back and forth by the cylinder.

[0007] As a further solution of the utility model: a plurality of groups of air holes are arranged in the clamping groove, and air duct 2 arranged corresponding to the back of the air holes is cross-connected with the air duct at a right angle, and air duct 1 is located in the middle position of the mounting plate and has a "semicircular" structure, and has a threaded structure close to one side end of the mounting plate.

[0008] As a further solution of the utility model: four penetrating mounting holes are provided at four corners of the mounting plate and the supporting plate.

[0009] As a further solution of the utility model: the ejector hole is tangent to the circumference of the clamping groove, and an "O"-shaped sealing ring is arranged on the circumference of the ejector hole on one side of the airway.

[0010] As a further solution of the utility model: the support plate is symmetrically provided with airway three at the position of the airway two, the airway three is in a "semicircular" structure and is threaded inside, the airway two and the airway three are connected to the outside with quick connectors, and the quick connectors are filled with high negative pressure gas.

[0011] As a further solution of the utility model: four cylinder plates are arranged on two symmetrical sides of the cylinder, and four mounting holes 2 penetrating the bracket are opened on the cylinder plates.

[0012] As a further solution of the utility model: the bracket is a rectangular parallelepiped structure with a hollow interior, and the upper plane of the bracket is horizontally parallel to the base.

[0013] As a further solution of the utility model: the sealing groove is a "rectangular" structure, and a sealing strip is installed inside.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] 1. In the utility model, the heat sink can be accurately positioned at one time through the design of the clamping groove, thereby preventing the processing accuracy problem caused by the position error of manual alignment and saving a lot of alignment man-hours.

[0016] 2. In the utility model, the heat sink is automatically fixed by the adsorption effect of the introduction of high negative pressure gas and the assistance of the cylinder ejector pin, avoiding manual fixation, saving time and labor, high production efficiency, and facilitating mass production of heat sinks. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the structure of the utility model;

[0018] Figure 2 The structure diagram of the mounting plate in the utility model is shown in FIG. Figure 1 ;

[0019] Figure 3 The structure diagram of the mounting plate in the utility model is shown in FIG. Figure 2 ;

[0020] Figure 4 It is a structural schematic diagram of the support plate in the utility model;

[0021] Figure 5 It is a structural schematic diagram of the cylinder in the utility model.

[0022] In the figure: 1. Mounting plate; 101. Mounting hole 1; 102. Ejector hole; 103. Clamping groove; 104. Sealing groove; 105. Airway 1; 106. Airway 2; 107. Air vent; 2. Support plate; 201. Rib plate; 202. Machine base; 203. Bracket; 204. Mounting hole 2; 205. Airway 3; 3. Cylinder; 301. Telescopic rod; 302. Back plate; 303. Ejector; 304. Cylinder plate; 4. Quick connector; 5. Heat sink; 6. Sealing strip; 7. O-ring. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] See also Figures 1 to 5 In the embodiment of the utility model, a positioning fixture for processing a heat sink 5 comprises a mounting plate 1, a support plate 2 and a machine base 202. Two assembly clamping grooves 103 are symmetrically opened in the center of one side of the mounting plate 1, and an airway 105 and an airway 2 106 are opened on the other side of the mounting plate 1. A sealing groove 104 is opened around the airway 105. The mounting plate 1 is symmetrically provided with a support plate 2 connected by bolts, and a pinhole 102 penetrating the mounting plate 1 and the support plate 2 is arranged around the clamping groove 103. A machine base 202 connected at a right angle is welded to the bottom of the support plate 2, and welded ribs 201 are arranged on both sides of the angle between the machine base 202 and the support plate 2. A bracket 203 is symmetrically welded on the machine base 202, and a cylinder 3 fixed with bolts is arranged above the bracket 203. A pinhole 303 that can move back and forth is penetrated through the pinhole 102, and the pinhole 303 is welded with a back plate 302, which is welded to a telescopic rod 301 pushed back and forth by the cylinder 3.

[0025] By adopting the above technical solution, the heat sink 5 is loaded into the clamping groove 103. After the quick connector 4 is connected, the high-negative-pressure gas automatically adsorbs and fixes the heat sink 5 through the provided air channel 105 and the air channel 2 106. After the cylinder 3 is connected and the ejector pin 303 is pushed out through the ejector pin hole 102, the heat sink 5 is further limited and fixed around. After the heat sink 5 is completely fixed, the processing work can be carried out. All positioning work does not need to be done manually, which is convenient and quick, and the work efficiency is greatly improved.

[0026] Among them, multiple groups of air holes 107 are arranged in the clamping groove 103, and the air duct 2 106 corresponding to the back of the air hole 107 is cross-connected with the air duct 1 105 at a right angle. The air duct 1 105 is located in the middle position of the mounting plate 1 and has a "semi-circular" structure, and has a threaded structure at one end close to the mounting plate 1. The air duct 1 105 and the air duct 2 106 can introduce high negative pressure gas into the back of the heat sink 5 through the air hole 107, and the heat sink 5 is firmly adsorbed and fixed under the action of negative pressure.

[0027] Among them, four through-going mounting holes 101 are set at the four corners of the mounting plate 1 and the supporting plate 2, and are tightly connected and fixed by bolts.

[0028] The ejector hole 102 is tangent to the circumference of the clamping groove 103, and an O-ring 7 is arranged around the ejector hole 102 on the airway 105 surface, so that the ejector 303 can accurately position the edge of the heat sink 5 while maintaining the reciprocating motion of the ejector 303 to prevent air leakage.

[0029] Among them, the support plate 2 is symmetrically provided with airway three 205 at the position of airway two 106. Airway three 205 is in a "semicircular" structure and is threaded inside. The outsides of airway two 106 and airway three 205 are connected with quick connectors 4, and the quick connector 4 is filled with high negative pressure gas. The symmetrical threaded structure of airway two 106 and airway three 205 can facilitate the universalization and quick connection of the quick connector 4.

[0030] Among them, four cylinder plates 304 are symmetrically arranged on both sides of the cylinder 3, and four mounting holes 204 penetrating the bracket 203 are opened on the cylinder plate 304, which are fixed by bolt connection.

[0031] The bracket 203 is a rectangular parallelepiped structure with a hollow interior. The upper plane of the bracket 203 is horizontally parallel to the base 202. While reducing the weight, it ensures that the cylinder 3 connected to the bracket 203 reciprocates in the horizontal direction to ensure processing accuracy.

[0032] The sealing groove 104 is a "rectangular" structure, and a sealing strip 6 is installed inside to further seal the gas to prevent leakage and pressure relief.

[0033] In this embodiment, when in use, the heat sink 5 is loaded into the clamping groove 103. After the quick connector 4 is connected, the high-negative-pressure gas automatically adsorbs and fixes the heat sink 5 through the provided air channel 105 and the air channel 2 106. After the cylinder 3 is connected and the ejector pin 303 is pushed out through the ejector pin hole 102, the heat sink 5 is further limited and fixed around. After the heat sink 5 is completely fixed, the processing work can be carried out. After the processing is completed, the high-negative-pressure gas is depressurized, the ejector pin 303 is withdrawn, the heat sink 5 falls off, and the processing is completed.

[0034] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A positioning fixture for heat sink processing, comprising a mounting plate (1), a support plate (2), and a base (202), characterized in that: Two assembly clamping grooves (103) are symmetrically provided on one side of the mounting plate (1), and air duct one (105) and air duct two (106) are provided on the other side of the mounting plate (1). A sealing groove (104) is provided around the air duct one (105). The mounting plate (1) is symmetrically provided with the support plate (2) connected by bolts, and a pinhole (102) penetrating the mounting plate (1) and the support plate (2) is provided around the clamping groove (103). The bottom of the support plate (2) is welded with the A machine base (202), ribs (201) formed by welding are arranged on both sides of the angle between the machine base (202) and the support plate (2), a bracket (203) is symmetrically welded on the machine base (202), a cylinder (3) fixed by bolts is arranged above the bracket (203), a reciprocating ejector pin (303) passes through the ejector pin hole (102), a back plate (302) is welded on the ejector pin (303), and the back plate (302) is welded to a telescopic rod (301) pushed back and forth by the cylinder (3).

2. A positioning fixture for heat sink processing according to claim 1, characterized in that: A plurality of groups of air holes (107) are arranged in the clamping groove (103); air duct 2 (106) arranged corresponding to the back of the air hole (107) is cross-connected with air duct 1 (105) at a right angle; air duct 1 (105) is located in the middle of the mounting plate (1) and has a "semicircular" structure, and has a threaded structure at one end close to the mounting plate (1).

3. A positioning fixture for heat sink processing according to claim 1, characterized in that: Four penetrating mounting holes (101) are provided at the four corners of the mounting plate (1) and the supporting plate (2).

4. The positioning fixture for heat sink processing according to claim 1, characterized in that: The ejector pin hole (102) is tangent to the circumference of the clamping groove (103), and an "O" type sealing ring is arranged on the circumference of the ejector pin hole (102) on one side (105) of the air passage.

5. The positioning fixture for heat sink processing according to claim 1, characterized in that: The support plate (2) is provided with an air channel three (205) symmetrically to the position of the air channel two (106); the air channel three (205) is in a "semicircular" structure and is internally threaded; the air channel two (106) and the air channel three (205) are connected to the outside with a quick connector (4), and the quick connector (4) is filled with high negative pressure gas.

6. The positioning fixture for heat sink processing according to claim 1, characterized in that: Four cylinder plates (304) are symmetrically arranged on both sides of the cylinder (3), and four mounting holes (204) penetrating the bracket (203) are opened on the cylinder plate (304).

7. The positioning fixture for heat sink processing according to claim 1, characterized in that: The bracket (203) is a rectangular parallelepiped structure with a hollow interior, and the upper plane of the bracket (203) is horizontally parallel to the machine base (202).

8. The positioning fixture for heat sink processing according to claim 1, characterized in that: The sealing groove (104) is a "rectangular" structure, and a sealing strip (6) is installed inside.

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