CN100434205C

CN100434205C - Method and its device for forming heat pipe shrinking pipe

Info

Publication number: CN100434205C
Application number: CNB2004100955574A
Authority: CN
Inventors: 李嘉豪
Original assignee: Individual
Current assignee: Individual
Priority date: 2004-11-29
Filing date: 2004-11-29
Publication date: 2008-11-19
Anticipated expiration: 2024-11-29
Also published as: CN1781621A

Abstract

The present invention relates to a method and a device for forming and shrinking a heat pipe. The present invention swages the pipe wall of a heat pipe body needing to be processed through a composite mould to form a shrunk pipe. Before the heat pipe body is swaged, a mandrel element is inserted into the pipe body, the capillary tissues in the pipe body are tightly pressed on the pipe wall by the mandrel element, and the mandrel element is drawn out after the pipe wall is formed. In this way, an opening of the shrunk pipe can keep fluent after the heat pipe body is swaged, shrunk and formed, and therefore, the heat pipe can be processed subsequently and conveniently.

Description

The building mortion of heat pipe shrinking pipe

Technical field

The present invention relates to a kind of manufacturing process and device thereof of heat pipe shrinking pipe, particularly a kind of manufacturing process and device thereof that swaged forging (swage) processing method is applied in the heat pipe shrinking pipe on the tube body of heat pipe draw process.

Background technology

The known draw process that is applied in tube body of heat pipe with the swaged forging processing method, as shown in Figure 1, process equipment 1a has the roller 10a of a plurality of annular arrangements, and the punch die 11a and the liner 12a thereof that are centered on by roller 10a are housed in the main shaft of process equipment 1a, thereby make the punch die 11a can be with the main axis rotation of process equipment 1a, and when punch die 11a was rotated motion, the roller 10a of circular row in punch die 11a periphery can force liner 12a to carry out the upper and lower motion of certain stroke.Like this, when the end with the tube body of heat pipe of pending draw processing inserts in the die cavity 110a of punch die 11a, can carry out swaged forging processing to the insertion end of this tube body of heat pipe, its swaged forging is become required draw shape by punch die 11a.

As shown in Figure 2, when being swaged into the draw in the die cavity 110a of tube body of heat pipe 2a at punch die 11a, because caliber from large to small, cause the capillary structure at the draw position of tube body of heat pipe 2a to be piled into accordion, thereby result in blockage at the mouth of pipe place of the draw easily, make next step process of this tube body of heat pipe 2a being filled working fluid implement, working fluid can't be injected in the tube body of heat pipe 2a even at all, cause the inconvenience in the manufacturing than difficult.

Given this, the design artificially improves and solves the defective that exists in the above-mentioned prior art, through concentrating on studies and cooperating the utilization of scientific principle, proposes a kind of reasonable in design and effectively improve the present invention of above-mentioned defective finally.

Summary of the invention

Main purpose of the present invention is to provide a kind of heat pipe shrinking pipe manufacturing process and device thereof, it can guarantee that tube body of heat pipe is after the draw processing of carrying out swaged forging (swage), still can make the draw mouth of pipe after tube body of heat pipe is shaped keep unimpeded, can not dwindle because of the caliber of tube body of heat pipe, cause its inner capillary structure fold and pile up, be jammed in draw mouth of pipe place, so that the carrying out of the processing of the postorder on the heat pipe manufacture process.

To achieve these goals, the manufacturing process of heat pipe shrinking pipe provided by the invention is to utilize assembling die that the tube wall of tube body of heat pipe to be processed is carried out swaged forging processing to form the draw.Before this tube body of heat pipe is carried out swaged forging, in its body, insert the axle part, by this axle part the capillary structure in this tube body of heat pipe is pressed on the tube wall, after being shaped to tube wall, again this axle part is extracted out, thereby processed the unimpeded heat pipe shrinking pipe of the mouth of pipe.

To achieve these goals, the building mortion of heat pipe shrinking pipe provided by the invention comprises assembling die and the axle part that is made of a plurality of moulds, and each mould merges the common afterwards die cavity that forms.Wherein, this die cavity has arrival end, inwardly forms the less draw district of bore by this arrival end; In this die cavity, be placed with the axle part, and an end of this axle part is unsettled is placed in the draw district.When tube body of heat pipe being inserted the draw district of die cavity, the axle part also inserts in the tube body of heat pipe simultaneously, therefore the capillary structure in this tube body of heat pipe can be pressed on the tube wall by this axle part, thereby avoid the mouth of pipe to stop up.

Use method of the present invention and device can guarantee that tube body of heat pipe is after draw processing, still can keep the unimpeded of its draw mouth of pipe, can not cause its inner capillary structure to pile up the formation fold and then the obstruction draw mouth of pipe, thereby be convenient to this heat pipe is carried out following process because of caliber dwindles.

Description of drawings

Fig. 1 is the known action schematic diagram that is applied to the swaged forging process equipment of heat pipe shrinking pipe manufacturing.

Fig. 2 is that known opposite heat tube body carries out the action schematic diagram that the draw adds man-hour.

Fig. 3 is the exploded perspective view of first embodiment of the invention.

Fig. 4 is the assembled sectional view of first embodiment of the invention.

Fig. 5 is the action schematic diagram before first embodiment of the invention begins draw processing.

Fig. 6 is that first embodiment of the invention is carried out the action schematic diagram that the draw adds man-hour.

Fig. 7 is the enlarged drawing of A part among Fig. 6.

Fig. 8 is that the supporting seat of first embodiment of the invention is located at the assembled sectional view on the compound module.

Fig. 9 is the action schematic diagram of second embodiment of the invention.

Figure 10 is the exploded perspective view that the supporting seat of first embodiment of the invention is set up a plurality of bit-withdrawing slots.

In the accompanying drawing, the list of parts of each label representative is as follows:

1a-process equipment 10a-roller 11a-punch die

12a-liner 110a-die cavity

The 1-assembling die 10-first mould 11-second mould

100,110-half module cave 12-die cavity

120-arrival end 121-draw district

122-converging transition 123-storage bits space

2-axle part 20-supporting seat 200-bit-withdrawing slot

The 3-pushing unit

4-tube body of heat pipe 40-capillary structure

The specific embodiment

Below in conjunction with accompanying drawing feature of the present invention and technology contents are described in detail.Described accompanying drawing and description are limited scope of the present invention by any way just for illustration purpose provides.

As shown in Figures 3 and 4, draw manufacturing process provided by the invention and device, it is applied to method and device thereof on the tube body of heat pipe draw processing procedure for a kind of swaged forging (swage) processing mode that utilizes.In first embodiment, the building mortion of heat pipe shrinking pipe of the present invention comprises assembling die 1 and axle part 2, wherein:

Assembling die 1 comprises first mould 10 and second mould 11.The present invention for embodiment in, assembling die 1 by first mould 10 and second mould 11 upper and lower stacked mutually and and set up jointly, and mutually and the place of closing formation one die cavity 12 at first and second mould 10,11.Die cavity 12 caves inward in the bottom surface of first mould 10 and forms half module cave 100, then cave inward in addition and form corresponding half module cave 110 in the end face of second mould 11, and when the upper and lower mutual stacked merging of first mould 10 and second mould 11, two halves die cavity 100,110 can constitute a described die cavity 12, and can place within it for axle part 2.

Die cavity 12 has arrival end 120, inwardly forms the less draw district 121 of bore by arrival end 120, and an end of axle part 2 is unsettled is placed in the draw district 121.The present invention for embodiment in, die cavity 12 to forming bore between the draw district 121 by big gradually little converging transition 122, is recessed to form storage bits space 123 by its arrival end 120 in addition in the rear end in draw district 121, and storage bits space 123 is connected with draw district 121.

In the present embodiment, axle part 2 except that an end is unsettled be placed in the draw district 121, the other end of axle part 2 also is connected with supporting seat 20.Supporting seat 20 is gripped and embeds in the die cavity 12 by first and

second mould

10,11, thereby an end of axle part 2 can unsettledly be placed in the draw district 121.Or as shown in Figure 8, supporting seat 20 also can be connected on

arbitrary mould

10,11 of assembling die 1.In addition, axle part 2 unsettled ends that are placed in the draw district 121 can be taper.

As Fig. 5 and shown in Figure 6, one end of the tube body of heat pipe 4 of pending draw processing is pushed in the die cavity 12 gradually from arrival end 120, can use the pushing units 3 that are positioned at outside the die cavity 12 to promote tube body of heat pipe 4 and push die cavity 12, and pushing unit 3 can be pneumatic cylinder or oil hydraulic cylinder.So, can come opposite heat tube tube wall 4 to carry out swaged forging, make thermotube wall 4 can cooperate draw district 121 moulding of die cavity 12, thereby finish the draw processing of heat pipe by first and

second mould

10,11 constantly upper and lower motions.Simultaneously, as shown in Figure 7, when tube body of heat pipe 4 inserts the draw district 121 of die cavity 12, axle part 2 also inserts in the tube body of heat pipe 4 simultaneously, therefore the capillary structures 40 in the tube body of heat pipe 4 can be pressed on the tube wall during swaged forging, and can not make capillary structure 40 be piled into fold and then stop up the mouth of pipe because of caliber dwindles.In addition, because axle part 2 unsettled ends that are placed in the draw district 121 have tapering, thereby make things convenient for the modulo operation of moving back of tube body of heat pipe 4, and then keep the unobstructed of the mouth of pipe.

Figure 9 shows that the action schematic diagram of second embodiment of the invention.Wherein, axle part 2 also can be placed in the tube body of heat pipe 4, and and tube body of heat pipe 4 be pushed together in the die cavity 12 that unit 3 pushes assembling die 1.So, can the capillary structures 40 in the tube body of heat pipe 4 be pressed on the tube wall by axle part 2 equally, after the tube wall at the draw position of tube body of heat pipe 4 is shaped, again tube body of heat pipe 4 be withdrawed from outside the die cavity 12, and axle part 2 detached tube body of heat pipe 4, thereby form the unimpeded heat pipe shrinking pipe of the mouth of pipe.

In addition, as shown in figure 10, because first and

second mould

10,11 opposite heat tube tube walls 4 carry out can producing chip when swaged forging forms the draw, therefore the present invention can be recessed to form storage bits space 123 in 121 rear ends, draw district to store chip, also can on supporting seat 20, offer a plurality of bit-withdrawing slots 200 in addition, thereby the chip that is deposited in the storage bits space 123 can be discharged outside the die cavity 12 through bit-withdrawing slot 200.

The above only is the preferred embodiments of the present invention, be not so promptly limit claim of the present invention, the equivalent structure transformation that every utilization specification of the present invention and accompanying drawing content are done, or directly or indirectly be used in other relevant technical field, all in like manner be included in the claim of the present invention.

Claims

1. the building mortion of a heat pipe shrinking pipe is characterized in that, comprising:

One assembling die comprises a plurality of moulds, and closes up the position formation die cavity that Shi Zaiqi closes up at each described mould, and described die cavity has arrival end, and inwardly forms the less draw district of bore by described arrival end; And

Be placed on the axle part in the described die cavity, and an end of described axle part is unsettled is placed in the described draw district, the other end of wherein said axle part is connected with supporting seat, and described supporting seat is gripped and embeds in the described die cavity by described assembling die.

2. building mortion as claimed in claim 1 is characterized in that described assembling die is made up of first mould and the upper and lower mutual stacked merging of second mould.

3. building mortion as claimed in claim 2 is characterized in that the bottom surface of described first mould is recessed to form the half module cave, and the end face of described second mould is recessed to form second half corresponding die cavity, and the two halves die cavity merges the described die cavity of formation.

4. building mortion as claimed in claim 1, it is characterized in that described die cavity by its arrival end to forming bore between the draw district by big gradually little converging transition.

5. building mortion as claimed in claim 1 it is characterized in that the rear end, draw district of described die cavity is recessed to form storage bits space, and described storage bits space is communicated with described draw district.

6. building mortion as claimed in claim 1 is characterized in that offering on the described supporting seat a plurality of bit-withdrawing slots.

7. building mortion as claimed in claim 1 is characterized in that the unsettled end that is placed in the described draw district of described axle part is taper.