CN217832818U - Pneumatic clamping device is used in fin processing - Google Patents

Abstract

The utility model discloses a pneumatic clamping device for processing radiating fins, which comprises a base plate, wherein vacuum adsorption devices for placing workpieces are arranged on two sides of the top of the base plate; the rotary pressing mechanism is arranged on the side surface of the vacuum adsorption device; and the telescopic mechanism is arranged between the two vacuum adsorption devices and is used for pushing the rotary pressing mechanism to rotate so as to realize the pressing of the workpiece. The clamping device can rapidly clamp the radiating fin through the vacuum adsorption device and the rotary pressing mechanism, and is convenient to process.

Description

Pneumatic clamping device is used in fin processing

Technical Field

The utility model relates to the technical field of machining, a pneumatic clamping device is used in fin processing specifically says so.

Background

The radiating fin is a device for easily generating heat and radiating electronic elements in an electrical appliance, the currently commonly used radiating fin is made of copper and aluminum alloy, in the process of producing the radiating fin, rough machining blanking is needed, the dimensional tolerance of the width W is controlled by a raw material manufacturer according to the technical requirement, the dimensional tolerance of the length L1 is completed by the rough machining blanking, and the allowance of 1.6-2.0mm needs to be added to meet the requirement of the semi-finishing external dimension of the subsequent procedure; the mode is mainly used for ensuring the appearance of the workpiece, and the workpiece can be placed into a corresponding tool clamp cavity during finish machining; the existing tool clamp cannot realize clamping in the directions of length L1 and width W, is in clearance fit, and can only perform semi-finishing by depending on the tolerance of raw materials and increasing the blanking size to ensure the tolerance fit with a clamp cavity, and the existing clamping mode is vacuum adsorption (namely, after a workpiece is placed in the clamp cavity, a vacuum negative pressure mode is adopted), but has the defects that when the tolerance of the width of the material in a raw material factory is inconsistent, because the width W (the dimensional tolerance of a raw material manufacturer is controlled according to the technical requirement) is not clamped and is completely in tolerance fit, the clearance is too large, the processing cannot be performed, and only the secondary processing of the clamp cavity is performed (if the raw materials are returned, the processing cost is generated because the previous process is performed, and the comprehensive cost is increased), because the processing precision cannot be met (according to the basic positioning principle of the workpiece, the original processing clamp positioning device is not positioned), the production efficiency is low, the semi-finishing material allowance needs to be increased, and the cost is high.

SUMMERY OF THE UTILITY MODEL

Therefore, in order to solve the above-mentioned not enough, the utility model provides a pneumatic clamping device is used in fin processing herein, this pneumatic clamping device adopts vacuum adsorption clamping device, makes middle zone form airtight cavity, relies on vacuum generating device to utilize atmospheric pressure to compress tightly the work piece) and telescopic machanism and rotatory hold-down mechanism combine, realize fixing a position completely promptly, guarantee work piece processingquality. The requirement on the size of a workpiece is not high, the problems of modification of a clamp cavity, return of raw materials and the like caused by dimensional tolerance of materials are solved, and the efficiency is improved; meanwhile, semi-finishing allowance is not increased, so that the material cost is saved; and the complete positioning is realized, the precision is high, and the like.

The utility model is realized in such a way that a pneumatic clamping device for processing the radiating fin is constructed, which comprises a base plate, wherein both sides of the top of the base plate are provided with vacuum adsorption devices for placing workpieces;

the rotary pressing mechanism is arranged on the side surface of the vacuum adsorption device; and

and the telescopic mechanism is arranged between the two vacuum adsorption devices and is used for pushing the rotary pressing mechanism to rotate so as to realize the pressing of the workpiece.

Furthermore, the top of the vacuum adsorption device is a plane, a sealing groove is formed in the middle of the top, and a vacuum adsorption hole communicated with an external vacuum adsorption device is formed in the inner bottom of the sealing groove.

Furthermore, a linear slide rail is arranged on the substrate between the two vacuum adsorption devices, a slide block is arranged on the linear slide rail, and the telescopic mechanism is arranged at the outer end of the linear slide rail and keeps the telescopic end connected with the slide block.

Further, the telescopic mechanism comprises an air cylinder, and the air cylinder is arranged at the outer end of the linear slide rail through an air cylinder fixing base and keeps the telescopic direction of the air cylinder the same as the moving direction of the slide block; and

and the guide pressing block is arranged on the telescopic part of the air cylinder and is kept connected with the sliding block.

Further, the rotary pressing mechanism comprises a fixed base fixed on the side surface of the vacuum adsorption device;

one end of the clamping rod is hinged on the fixed base, and the other end of the clamping rod is in contact with the guide pressing block and the adjacent side surface of the vacuum adsorption device; and

and the round pressing block is arranged on the clamping rod and is used for realizing the pressing with the contact of the workpiece.

Furthermore, the clamping rod is in an L-rod shape, one end of the clamping rod corresponds to the side face of the vacuum adsorption device and keeps the end part of the end hinged to the fixed base, the other end of the clamping rod corresponds to the adjacent side face of the vacuum adsorption device and keeps the outer part of the end in contact with the guide pressing block, and the circular pressing block is fixed to the top of the clamping rod through a screw.

Furthermore, one end of the guide pressing block is conical and keeps the end to be in contact with the clamping rods at the two ends, and the other end of the guide pressing block is provided with a through waist-shaped hole.

The utility model discloses following beneficial effect has:

compared with the prior art, the utility model has the advantages of it is following:

1. the semi-finishing process is not needed, the semi-finishing process is saved, and the efficiency is high.

2. The material with the thickness of 1.6-2.0mm for rough machining and blanking does not need to be added, and the cost of raw materials is reduced.

3. Compared with the automatic active adjustment clamping, the automatic adjustment clamping device can realize complete positioning and has high precision.

The utility model discloses in, be for cooperating the direction of height error, the assembly of being convenient for when the assembly through setting up the waist type hole on the direction briquetting.

Drawings

Fig. 1 is a schematic structural diagram of the present invention;

fig. 2 is a front view of the present invention;

fig. 3 is a side view of the present invention;

fig. 4 is a top view of the present invention;

fig. 5 is an exploded view of the rotary clamping mechanism and cylinder, and the workpiece, removed;

FIG. 6 is an exploded view of the cylinder and guide block;

FIG. 7 is an exploded view of the rotary hold down mechanism and workpiece;

in the figure: 1. a substrate; 2. a vacuum adsorption device; 2.1, sealing grooves; 2.2, vacuum adsorption holes; 3. a workpiece; 4. rotating the pressing mechanism; 4.1, fixing a base; 4.2, clamping rods; 4.3, pressing the block in a round way; 5. a cylinder fixing base; 6. a cylinder; 7. guiding and pressing blocks; 7.1, a waist-shaped hole; 8. a linear slide rail; 9. a slide block.

Detailed Description

The present invention will be described in detail with reference to fig. 1 to 7, and the technical solutions in the embodiments of the present invention will be clearly and completely described, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

The utility model discloses an improve and provide a pneumatic clamping device is used in fin processing here, can implement according to following mode: a pneumatic clamping device for machining a radiating fin comprises a base plate 1, wherein vacuum adsorption devices 2 for placing workpieces 3 are arranged on two sides of the top of the base plate 1;

the rotary pressing mechanism 4 is arranged on the side surface of the vacuum adsorption device 2; and

and the telescopic mechanism is arranged between the two vacuum adsorption devices 2 and used for pushing the rotary pressing mechanism 4 to rotate so as to realize the pressing of the workpiece 3.

In this embodiment, the top of the vacuum adsorption device 2 is a plane and is provided with a sealing groove 2.1 in the middle, and the inner bottom of the sealing groove 2.1 is provided with a vacuum adsorption hole 2.2 communicated with an external vacuum adsorption device.

In this embodiment, a linear slide 8 is disposed on the substrate 1 between the two vacuum adsorption devices 2, a slide 9 is disposed on the linear slide 8, and the telescopic mechanism is disposed at the outer end of the linear slide 8 and keeps the telescopic end connected with the slide 9.

In this embodiment, the telescopic mechanism comprises a cylinder 6, which is mounted on the outer end of the linear slide 8 through a cylinder fixing base 5 and keeps the telescopic direction of the cylinder 6 the same as the moving direction of the slide block 9; and

and a guide pressing block 7 which is arranged on the telescopic part of the air cylinder 6 and is kept connected with the sliding block 9.

In the present embodiment, the rotary pressing mechanism 4 includes a fixed base 4.1 fixed on the side of the vacuum adsorption device 2;

one end of the clamping rod 4.2 is hinged on the fixed base 4.1, and the other end of the clamping rod is in contact with the guide pressing block 7 and the adjacent side surface of the vacuum adsorption device 2; and

and the round pressing block 4.3 is arranged on the clamping rod 4.2 and is used for being in contact with the workpiece 3 to realize compaction.

In this embodiment, the clamping rod 4.2 is in the shape of an L-shaped rod, one end of which corresponds to a side surface of the vacuum adsorption device 2 and keeps the end portion hinged to the fixed base 4.1, the other end of which corresponds to an adjacent side surface of the vacuum adsorption device 2 and keeps the outer portion of the end in contact with the guide pressing block 7, and the round pressing block 4.3 is fixed on the top of the clamping rod 4.2 through a screw.

In this embodiment, one end of the guide pressing block 7 is tapered and is kept in contact with the clamping rods 4.2 at the two ends, and the other end of the guide pressing block 7 is provided with a through waist-shaped hole 7.1.

The working principle is as follows: the clamping device is fixed on a machine tool workbench according to the processing technical requirements and is simultaneously connected with a corresponding air source device, a vacuum generating device and the like. Firstly, a workpiece 3 is placed at the top of a vacuum adsorption device 2, the vacuum adsorption device is started through an external vacuum generating device, air in a sealing groove 2.1 is adsorbed by a vacuum sealing hole 2.2, and initial positioning of Z-direction freedom degree is realized through atmospheric pressure; and the cylinder 6 is controlled to extend through an air source switch, namely, the guide pressing block 7 realizes acting force conversion along the direction of the linear slide rail 8 on the slide block 9, and the clamping rod 4.2 is hinged with the fixed base 4.1, namely, the acting force is transmitted to the guide surface of the clamping rod 4.2 through the guide pressing block 7, and meanwhile, the circular pressing block 4.3 is driven under the action of the clamping rod 4.2 to realize the acting force on the action surface of the clamping workpiece 3, so that complete positioning and clamping are realized.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (7)

1. The utility model provides a pneumatic clamping device is used in fin processing which characterized in that: comprises that

The vacuum adsorption device comprises a base plate (1), wherein vacuum adsorption devices (2) for placing workpieces (3) are arranged on two sides of the top of the base plate;

the rotary pressing mechanism (4) is arranged on the side surface of the vacuum adsorption device (2); and

the telescopic mechanism is arranged between the two vacuum adsorption devices (2) and used for pushing the rotary pressing mechanism (4) to rotate so as to realize the pressing of the workpiece (3).

2. The pneumatic clamping device for processing the heat sink as recited in claim 1, wherein: the top of the vacuum adsorption device (2) is a plane, a sealing groove (2.1) is formed in the middle of the top, and a vacuum adsorption hole (2.2) communicated with an external vacuum adsorption device is formed in the inner bottom of the sealing groove (2.1).

3. The pneumatic clamping device for processing the heat sink as recited in claim 1, wherein: be provided with linear slide rail (8) on base plate (1) between two vacuum adsorption device (2), be provided with slider (9) on linear slide rail (8), telescopic machanism sets up in the outer end of linear slide rail (8) and keeps the god shrink end to be connected with slider (9).

4. The pneumatic clamping device for processing the heat sink as recited in claim 3, wherein: the telescopic mechanism comprises an air cylinder (6) which is arranged on the outer end of the linear slide rail (8) through an air cylinder fixing base (5) and keeps the telescopic direction of the air cylinder (6) the same as the moving direction of the slide block (9); and

and the guide pressing block (7) is arranged on the telescopic part of the air cylinder (6) and is kept connected with the sliding block (9).

5. The pneumatic clamping device for processing the heat sink as recited in claim 4, wherein: the rotary pressing mechanism (4) comprises a fixed base (4.1) which is fixed on the side surface of the vacuum adsorption device (2);

one end of the clamping rod (4.2) is hinged on the fixed base (4.1), and the other end of the clamping rod is in contact with the guide pressing block (7) and the adjacent side surface of the vacuum adsorption device (2); and

and the round pressing block (4.3) is arranged on the clamping rod (4.2) and is used for being in contact with the workpiece (3) to realize compaction.

6. The pneumatic clamping device for processing the heat sink as recited in claim 5, wherein: the clamping rod (4.2) is in an L-rod shape, one end of the clamping rod corresponds to the side face of the vacuum adsorption device (2) and keeps the end part of the end hinged to the fixing base (4.1), the other end of the clamping rod corresponds to the adjacent side face of the vacuum adsorption device (2) and keeps the outer part of the end in contact with the guide pressing block (7), and the circular pressing block (4.3) is fixed to the top of the clamping rod (4.2) through a screw.

7. The pneumatic clamping device for processing the heat sink as recited in claim 4, wherein: one end of the guide pressing block (7) is conical and keeps the end to be contacted with the clamping rods (4.2) at the two ends, and the guide pressing block guides

The other end of the pressing block (7) is provided with a through waist-shaped hole (7.1).

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