CN2645808Y - Reducing tube stretching apparatus - Google Patents
Reducing tube stretching apparatus Download PDFInfo
- Publication number
- CN2645808Y CN2645808Y CN 200320117169 CN200320117169U CN2645808Y CN 2645808 Y CN2645808 Y CN 2645808Y CN 200320117169 CN200320117169 CN 200320117169 CN 200320117169 U CN200320117169 U CN 200320117169U CN 2645808 Y CN2645808 Y CN 2645808Y
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- stretching
- die
- pipe
- core bar
- tube
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- Expired - Lifetime
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Abstract
The utility model relates to a reducing tube stretching apparatus. One end of a tube blank on a rotary swaging machine is forged firstly into a craft tube with a small diameter; thereby the tube can pass through a stretching die and is clamped by a die-clamping block; secondly, a clamping base and the die-clamping block are drove by a hydraulic traction control system; thirdly, a core bar with a die head is extended into a copper tube and stretched via the stretching die. The reducing tube stretching apparatus comprises the rotary swaging machine and the traction stretching apparatus. A stretching manufacturing process line is formed by the die-clamping block, the stretching die and the core bar which share same central line. The position of the core bar can be adjusted slightly and has good stretching effect, good stability and reliability and high efficiency. The surface of the reducing tube is smooth without any burr and has high production yield. The hydraulic traction control system is arranged with a travel switch to control stretching stroke. The utility model overcomes the defects of the welding reducing tube, which is used for manufacturing the copper tube with thin wall and small pore diameter. Products of the utility model are widely applied to coolant pipeline in the refrigeration industry.
Description
Technical field
The utility model relates to a kind of manufacturing equipment of reducer pipe, particularly a kind of stretcher that is used as the reducer pipe of refrigeration industry refrigerant pipeline.
Background technology
At refrigeration industries such as air-conditioner, refrigerators, use a kind of copper tube to make refrigerant pipeline in a large number.This fine copper copper pipe is pliable and tough flexible, often makes capillary and uses, and wall is thin and caliber is tiny, in throttling step-down and flow control occasion, capillary and transition conduit need be linked, perhaps two sections different copper pipes of caliber be coupled together, become taper or trapezoidal reducer pipe.It can be the reducer pipe of one-level or the above reducer pipe of secondary, process equipment in the past, and basic the employing has seam welding, and drawback is fairly obvious.Can't produce the reducer pipe of smooth surface, continuous transition, be difficult to meet instructions for use, very big to the influence of refrigeration plant operation, essential pickling process can pollute environment.
Chinese patent ZL98219572.9 discloses a kind of " oblique milling reducer pipe equipment ".It is applied to rolling copper tube with existing aluminium, steel profile oblique milling technology.This equipment is made up of two parts such as roll part and roll feedings, and roll will have uniform three groups at least, and its roll feeding partly comprises roll stand frame, guide pad, guide holder, casing and guide pad propulsion system.By apply the pressure of constant follow procedure change to roll, roll moves radially, and realizes rolling reducer pipe.The little Red-copper Capillary Tube in the thin aperture of rolling thus wall, and not exclusively suitable, when making the multi-stage reducing pipe, be difficult to the accurately length of location drawing part.And, roll equipment heaviness, equipment investment is big, and production efficiency is not high enough.
Summary of the invention
The purpose of this utility model is to avoid above-mentioned weak point of the prior art, need not weld and provide a kind of, manufacturing is used for the refrigeration industry pipe fitting, and its surfaces externally and internally is smooth, inside/outside diameter size is accurate, continuous transition is seamless, a kind of stretcher of one or many stretching reducer pipe.
The purpose of this utility model can reach by following measure:
A kind of stretcher of reducer pipe, comprise a kind of swager and a kind of traction stretching device, it is characterized in that, forge by the end of swager the copper pipe pipe, become a segment process Guan Houzai to stretch, this traction stretching device is by a hydraulic haulage control system, clamping device and one or two drawing technique for manufacturing lines are formed, wherein, the hydraulic haulage control system includes oil pump, hydraulic cylinder and piston rod thereof, with the sequence circuit system that includes the Magnetic Induction travel switch, by the sequence circuit system in the step-less adjustment mode, the speed of control piston bar, the Magnetic Induction travel switch is controlled its startup/shut down procedure and stroke, and piston rod directly is attached to a grip slipper that can slide on guide rail; This grip slipper and one group that is fixed thereon or two groups of clamping pieces formation clamping devices; And the drawing technique for manufacturing line comprises this clamping piece, stretching die, core bar and adjustment screw thread thereof, they are in the same center line, and the clamping piece passes the process duct on copper pipe pipe one end of stretching die in order to clamping, and core bar stretches into its die head and arrives the die cavity position in the copper pipe.With the accurate position of adjusting the threaded adjustment core bar, thereby realize stretching.
Above-mentioned swager, by motor, driving-belt, rotating disk, fixing ring seat, cylinder, shake piece and one group of power transmission forges mould and constitutes, and wherein, forges mould and places in the middle of the groove of rotating disk, respectively there is the power transmission piece that shakes on both sides, rotating disk rotates at a high speed, drives the cylinder be arranged on the fixing ring seat, with shake the contacting/throw off of arc surface generating period of piece one side of transmission, the power transmission piece that shakes is vibrated repeatedly, carry out the strike of oscillatory type forging mould.
Above-mentioned one group forges mould, and the cross section ovalize of its die cavity, longitudinal profile outline line are involute.
The adjustment screw thread of above-mentioned core bar is installed on the holder, and this holder can slide in the dovetail groove on the frame.
Stretcher of the present utility model has following advantage:
1. than welding reducer pipe, equipment of the present utility model, production efficiency height, easy to operate, operation only and half, the manufacturing cycle shortens greatly, reliability improves greatly, the reappearance of product, and it is less relatively to detect the control point, finished product outward appearance slyness does not have the vestige of connection, no chlorination skin, do not need pickling, reduce the pollution to environment, equipment needed thereby is less, cost is also lower, can replace old technology equipment fully.
2. than oblique milling reducer pipe equipment, equipment of the present utility model is more suitable for making the little capillary brass pipe in the thin aperture of refrigeration copper reducer pipe, especially wall, can make that smooth surface, size are accurate, the one or many stretching reducer pipe of seamless continuous transition.
3. forge the die cavity shape and the structure of mould, be suitable for pipe and stretch to die cavity, resistance is very little, and the suffered power that forges is even, makes process duct smooth surface, no burr, facilitates penetration of stretching die during stretching, and the minimizing enhanced stretch resistance, avoid pipe to be broken, also improved and forged efficient.
4. by adjusting screw thread the degree of depth that core bar (that is to its die head) enters in the pipe is finely tuned, can control the size of institute's stretching caliber better,, can cause the reducer pipe sky to draw phenomenon, cause pipe internal surface coarse inhomogeneous because shallow as stretching into; As stretch in the die cavity deeply excessively, and can increase enhanced stretch resistance, pipe is easily broken.Add the accurate location of hydraulic system travel switch to drawing process, can adjust tensile force to optimum state, the reducer pipe that can stretchedly efficiently close the symbol specification requirement comes.
5. adopt the hydraulic haulage control system, can make to stretch steadily, avoided impulsive force, the reducer pipe smooth surface of pulling out, favorable reproducibility also is difficult for causing device damage.
6. the holder of screw thread is adjusted in carrying, can slide in dovetail groove, adjusts easy to operate.
Description of drawings
Fig. 1 is the structural representation of swager;
Fig. 2 is one group of separation schematic diagram that forges mould;
Fig. 3 is this structural representation that forges the mould front;
Fig. 4 is one of them side direction view that forges mould;
Fig. 5 is before pipe forges and forges the schematic diagram that concerns of mould;
Fig. 6 is that pipe forges back and the schematic diagram that concerns that forges mould;
Fig. 7 is the structural relation schematic diagram of traction stretching device;
Fig. 8 is a traction stretching device schematic diagram;
Fig. 9 is a core bar guiding mechanism schematic diagram;
Among each figure, the 7th, swager, 7-1 are the motors of this machine, 7-2 represents the driving-belt of this machine, and 7-3 is the rotating disk of this machine, and 7-4 is its fixedly ring seat, 7-5 is the cylinder on the ring seat, and 7-6 is the power transmission piece that shakes, and 7-7 is a key, 8,8` is one group and forges mould, the 9th, and copper pipe pipe, 9-1 are the segment process pipes on the pipe, 10 expression hydraulic haulage control systems, the 11st, hydraulic cylinder, the 12nd, oil pump, the 13rd, piston cylinder, the 14th, grip slipper, the 15th, clamping piece, the 16th, die holder, the 17th, stretching die, the 18th, holder, the 19th, adjust screw thread, the 20th, core bar, 20-1 is the die head on it, the 21st, and dovetail groove, the 22nd, Magnetic Induction travel switch.
The specific embodiment
Device of the present utility model mainly comprises a kind of swager 7 and a kind ofly is arranged on a traction stretching device on the frame.Wherein, swager 7 is selected a kind of motor 7-1 that includes for use, driving-belt 7-2, rotating disk 7-3, fixing ring seat 7-4, cylinder 7-5, power transmission shake piece 7-6 and one group of machinery that forges that forges mould 8,8`.Motor passes through driving-belt, driving rotating disk 7-3 rotates at a high speed, fixedly be fixed with many cylinder 7-5 on the ring seat 7-4, one group forges mould 8,8` and places in the middle of the groove on the rotating disk, respectively there is the power transmission piece 7-6 that shakes on both sides, and the groove of piece is wideer slightly than key 7-7, gapped between the two because power transmission is shaken, the power transmission piece that shakes is limited in can coming and going moving linearly in this gap; During dial rotation, the power transmission on the both sides arc surface on the piece outside that shakes with the contacting/throw off of cylinder 7-5 generating period, forges mould 8,8` and just is subjected to the shake hitting power of this approximate simple harmonic oscillation of piece of power transmission, and the copper pipe pipe in the die cavity is forged uniformly.And forge the cavity design of mould 8,8`, and adopt a kind of special structure, i.e. its cross section ovalize, the longitudinal profile outline line is symmetrical involute, makes when pipe axially stretches into, resistance is very little, makes out the carrot-free process duct of smooth surface.
Traction stretching device in the utility model device, by a hydraulic haulage control system, the grasping system that links with this system and one or two drawing technique for manufacturing lines are formed.Wherein, hydraulic haulage control system 10 is electromechanical integrated devices of a routine, adopts hydraulic press and programme controlled electronic circuit, includes hydraulic cylinder 11, and oil pump 12 and piston cylinder 13, hydraulic cylinder are provided with one group of Magnetic Induction travel switch 22.Programme-control includes pump start/shut down procedure; auto-feed and hand feed program; foot-actuated switch is arranged, the protection of advancing, retreat protection and use travel switch, and electronic components such as A.C. contactor, electrothermal relay, general-purpose relay, the time relay, air switch.Piston rod 13 directly links with grip slipper 14 as workbench, drives grasping systems by the hydraulic cylinder programme-control under 11, does the round slip of horizontal direction.This grasping system comprises the grip slipper 14 that is arranged on the guide rail and is fixed on one group or two groups of clamping pieces 15 on this grip slipper that the clamping piece is in order to the process duct 9-1 of clamping pipe one end.Under the situation of two groups of clamping pieces, device has two drawing technique for manufacturing lines, and every processing line includes clamping piece 15, and stretching die 17 and core bar 20 all have same center line; Wherein stretching die 17 is fixed on the die holder 16, and the end of core bar 20 is with one and adjusts screw thread 19, and the core bar position is finely tuned; The head of core bar is a die head 20-1, stretches into appropriate location in the stretching die die cavity.Adjust screw thread 19 and be installed on the holder 18, this holder can slide in the dovetail groove on the frame.
When stretching, at first an end of pipe 9 is axially stretched in the die cavity that on the swager one group forges mould 8,8`, forge into one section process duct 9-1 that diameter is very little, so that pass stretching die by clamping piece 15 clampings.Require this process duct smooth surface not have burr, flawless, wrinkle etc.Again the other end of core bar 20 from pipe 9 stretched in the pipe, make the appropriate location of the die head 20-1 arrival stretching die die cavity of core bar head, finely tune by adjusting screw thread 19 again, make the reducer pipe that is stretched meet technological requirement.Dark as if stretching into, can increase enhanced stretch resistance, pipe is easily broken; Cross the shallow sky that then easily causes and draw phenomenon, cause internal diameter size and inner surface fineness is all defective.Hydraulic system starts when stretching, and to predetermined length, Magnetic Induction travel switch 22 can the control piston bar 13 stops in the precalculated position.The reducer pipe of transfering to core bar and having stretched, piston rod resets, and stretches next time.As above constitute the stretching device of the utility model reducer pipe.
Claims (5)
1. the stretcher of a reducer pipe, comprise a kind of swager and a kind of traction stretching device, it is characterized in that, by swager (7), end to copper pipe pipe (9) forges, stretch again after becoming a segment process pipe (9-1), this traction stretching device is by a hydraulic haulage control system, clamping device and one or two drawing technique for manufacturing lines are formed, wherein, hydraulic haulage control system (10) includes oil pump (12), hydraulic cylinder (11) and piston rod (13) thereof and include the sequence circuit system of Magnetic Induction travel switch (22) are by the stroke of sequence circuit system control piston bar, piston rod is attached to a slidably grip slipper (14), this grip slipper (14) and one group that is fixed thereon or two groups of clamping pieces (15) formation clamping device; And the drawing technique for manufacturing line comprises this clamping piece (15), stretching die (17), core bar (20) and adjustment screw thread (19) thereof, they are in the same center line, the clamping piece passes the process duct (9-1) on copper pipe pipe (9) one ends of stretching die in order to clamping, core bar (20) stretches into its die head (20-1) and arrives the die cavity position in the copper pipe.
2. the stretcher of a kind of reducer pipe according to claim 1, it is characterized in that, described swager (7), by motor (7-1), driving-belt (7-2), rotating disk (7-3), fixing ring seat (7-4), shake piece (7-6) and one group of cylinder (7-5), power transmission forges mould (8,8 ｀) and constitutes, wherein, forging mould (8,8 ｀) places in the middle of the groove of rotating disk (7-3), respectively there is the power transmission piece (7-6) that shakes on both sides, and the cylinder (7-5) that rotating disk (7-3) drives on the fixing ring seat (7-4) rotates, and the power transmission piece (7-6) that shakes is vibrated repeatedly.
3. the stretcher of a kind of reducer pipe according to claim 1 and 2 is characterized in that, described one group forges mould (8,8 ｀), and the cross section ovalize of its die cavity, longitudinal profile outline line are involute.
4. the stretcher of a kind of reducer pipe according to claim 1 and 2 is characterized in that, the adjustment screw thread (19) of described core bar is installed on the holder (18), and this holder (18) can slide dovetail groove (21) lining on frame.
5. the stretcher of a kind of reducer pipe according to claim 3 is characterized in that, the adjustment screw thread (19) of described core bar is installed on the holder (18), and this holder (18) can slide dovetail groove (21) lining on frame.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200320117169 CN2645808Y (en) | 2003-10-20 | 2003-10-20 | Reducing tube stretching apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200320117169 CN2645808Y (en) | 2003-10-20 | 2003-10-20 | Reducing tube stretching apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2645808Y true CN2645808Y (en) | 2004-10-06 |
Family
ID=34305344
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200320117169 Expired - Lifetime CN2645808Y (en) | 2003-10-20 | 2003-10-20 | Reducing tube stretching apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2645808Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102225448A (en) * | 2011-05-05 | 2011-10-26 | 金龙精密铜管集团股份有限公司 | Method for machining reduced copper capillary tube used in air conditioner |
| CN105127218A (en) * | 2015-08-26 | 2015-12-09 | 山东建筑大学 | Novel preparation method of high-pressure nanocrystalline 15CrMoG alloy tube |
| CN109226328A (en) * | 2018-11-23 | 2019-01-18 | 绍兴上虞正达管业有限公司 | A kind of red copper hose processing technology |
| CN112974555A (en) * | 2021-01-26 | 2021-06-18 | 北京航空航天大学江西研究院 | Clamping structure for drawing high-temperature alloy thin-wall capillary tube |
-
2003
- 2003-10-20 CN CN 200320117169 patent/CN2645808Y/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102225448A (en) * | 2011-05-05 | 2011-10-26 | 金龙精密铜管集团股份有限公司 | Method for machining reduced copper capillary tube used in air conditioner |
| CN102225448B (en) * | 2011-05-05 | 2013-10-16 | 金龙精密铜管集团股份有限公司 | Method for machining reduced copper capillary tube used in air conditioner |
| CN105127218A (en) * | 2015-08-26 | 2015-12-09 | 山东建筑大学 | Novel preparation method of high-pressure nanocrystalline 15CrMoG alloy tube |
| CN109226328A (en) * | 2018-11-23 | 2019-01-18 | 绍兴上虞正达管业有限公司 | A kind of red copper hose processing technology |
| CN112974555A (en) * | 2021-01-26 | 2021-06-18 | 北京航空航天大学江西研究院 | Clamping structure for drawing high-temperature alloy thin-wall capillary tube |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Effective date of abandoning: 20060104 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |