CN102211122A - Conical spiral-reduction special-forging forming machine and forming method for pipes - Google Patents
Conical spiral-reduction special-forging forming machine and forming method for pipes Download PDFInfo
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- CN102211122A CN102211122A CN2010101408823A CN201010140882A CN102211122A CN 102211122 A CN102211122 A CN 102211122A CN 2010101408823 A CN2010101408823 A CN 2010101408823A CN 201010140882 A CN201010140882 A CN 201010140882A CN 102211122 A CN102211122 A CN 102211122A
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Abstract
The invention discloses a conical spiral-reduction special-forging forming machine and a forming method for pipes. A die is screened according to conditions of good surface finishment, high Rockwell hardness, fit of Rockwell hardness of a cover die with that of a core die, and the like; and good products of reducing pipes or conical reducing pipe parts which take conical areas as transition areas of non-ferrous metals and have the characteristics of attractive appearance, high processing accuracy, good inner and outer surface finishment, low residue content and the like are formed, and the service life of the die is prolonged. In the forming process, a switchboard programmable controller is used to control the normal work of various devices of the whole forming machine, so that the various devices work more cooperatively and efficiently in order; and the continuity of the processing production process is improved. A cooling water system cools the tooling die, so that the tooling die is prevented from deforming at high temperature so as to avoid influencing the surface finishment of the working surface, the service life of the tooling die is prolonged, and the inner and outer surface finishment of the pipes and the yield of the finished products are improved.
Description
Technical field
The present invention relates to the deep process technology field of non-ferrous metal tubing, especially relate to a kind of tubing taper and revolve contract different forging forming machine and forming method thereof.
Background technology
The deep process technology of non-ferrous metal tubing relates to the important processing and forming technology technology of metal pipe material goods industry.As everyone knows, the range of application of metal pipe material goods is very extensive, be used in the supporting pipeline component of aircraft, automobile, refrigerator, air-conditioning and refrigerator etc., have certain taper tubing as copper tube end and be used for air conditioner piping, the assembly that is used for refrigerator and refrigerator with the reducing tubing of root copper pipe different tube diameters, the exhaust pipe fitting of automobile, the air-conditioning duct assembly in the aircraft etc.Because these manufacturings are profile, machining accuracy, the surfaces externally and internally fineness of tubing and the having relatively high expectations of residuals content of the reducing tubing or the taper reducer material pipeline component of transition region with the conical region to non-ferrous metal, therefore, the product that adopts the method for traditional extruding or the moulding of reducing tubing welding processing to produce can not satisfy instructions for use in these areas.Simultaneously very huge again in the market demand of these these type of metal tubes of field, and traditional forming method can not be produced continuously, produces and does not slowly just satisfy demand and supply.
Therefore, continued to bring out out new technology on the market, a kind of reduced pipe rotary pressing processing device such as Chinese patent ZL200720050136.9, on the die die cavity wall of traditional shaped device, open at least two radiating grooves, lower the temperature to moulds of industrial equipment by radiating groove, thereby prevented the moulds of industrial equipment surface smoothness of its working face of deformation effect at high temperature, prolonged the service life of moulds of industrial equipment to a certain extent.Yet the cooling effect of this radiating groove is limited, and the machine available machine time, long more its cooling-down effect was not obvious more, and qualification rate will descend fast.Selection for traditional moulds of industrial equipment in this patent has proposed requirement, select the good material of red hardness to prolong the service life of mould and the machining accuracy of raising tubing, yet this saying is inapt, more rough, hardness excessive too small all be inappropriate, the excessive roll extrusion of hardness makes fully that inadequately product glossiness is not enough, and hardness is too small to be not easy to roll extrusion.In addition punch (core) and die (cover die) if hardness do not match, all can have a strong impact on the service life of mould, and the machining accuracy of tubing is not enough.
Summary of the invention
The objective of the invention is to overcome prior art to non-ferrous metal with the conical region be that the profile of the reducing tubing of transition region or taper reducer material pipeline component is poor, machining accuracy is not high, the surfaces externally and internally fineness difference of tubing and the high defective of residuals content, provide a kind of and can mold good looking appearance, machining accuracy height, the different forging molding method that contracts has been revolved in surfaces externally and internally fineness is good and residuals content is low tubing taper.
Another object of the present invention is to overcome that prior art can not be produced continuously and complete machine all uses the power supply of high voltage source to cause the nearly body operator defective that accidents happened easily, provide a kind of handling safety simple, cost is low, be easy to promote the use of, the different forging forming machine that contracts is revolved in the tubing taper that automaticity is high.
In order to achieve the above object, the present invention is achieved through the following technical solutions: the different forging molding method that contracts is revolved in a kind of tubing taper, it is characterized in that, this method may further comprise the steps:
(1) preparation;
A. select conical surface fineness in the cover die and be not less than 2 grades and Rockwell hardness scope at the cover die of 48HRC to 62HRC;
B. the shaped article that obtains according to actual needs corresponding machined parameters taper tiltangle or ramp height h select corresponding cover die;
C. specifying the bottom surface with this cover die is a processing datum, and this cover die is installed to revolving of make-up machine contracts on the different forging processing unit (plant);
The bell internal diameter of the shaped article that d. obtains is according to actual needs selected corresponding Rockwell hardness scope at the core of 62HRC to 67HRC, and this core is inserted in the die cavity of cover die;
E. select the Rockwell hardness scope at the locking mould of 42HRC, specify this locking mould bottom surface to be another processing datum, and be installed on the clamping and positioning device of make-up machine to 50HRC;
(2) formative stage;
A. the conical camber tiltangle of the shaped article that actual needs is obtained, slope length L and these machined parameters of ramp height h are input in the exchange programmable controller of make-up machine, and the exchange programmable controller is set at predefined parameter with these machined parameters and instructs the cover die work of controlling;
The tubing that b. will need to process is placed in the locking mould, and its front end inner hole sleeve is located at the core head, fixes with the hydraulic pressure fastener on the clamping and positioning device again;
C. the exchange programmable controller is opened the cooling water system on the make-up machine, by circulate successively clamping and positioning device and revolve the different forging processing unit (plant) that contracts of water pipe;
D. this tubing drives advance and retreat by the pneumatic propelling unit on the clamping and positioning device, and the roll extrusion effect that its outer surface circumferentially is subjected to cover die makes that the tapered zone of this tube forming is the reducing tubing or the taper reducer material of transition region.
If the fineness of fiting contact-making surface or working surface of mould is not high, the coarse usability of the conical surface of the tubing that produces is poor.If the hardness of a whole set of mould is little or the hardness of core and cover die does not match, the service life of mould will be had a strong impact on.If the processing datum choosing is wrong, mould just can not use.Conditions such as this method adopts that surface smoothness is good, Rockwell hardness is high, cover die and core Rockwell hardness are complementary are screened mould, help molding the excellent product of characteristics such as the good and residuals content of the surfaces externally and internally fineness of good looking appearance, machining accuracy height, tubing of reducing tubing that non-ferrous metal is transition region with the conical region or taper reducer material pipeline component is low, prolonged the service life of mould simultaneously.In forming process, utilize the exchange programmable controller to regulate and control the work of the each several part device of whole make-up machine, make that the each several part device is orderly, coordinate, machine-shaping efficient height continuously.Give moulds of industrial equipment (cover die, core film, locking mould etc.) cooling by cooling water system, thereby prevented the moulds of industrial equipment surface smoothness of its working face of deformation effect at high temperature, prolonged the qualification rate that has improved tube surfaces fineness and finished product service life simultaneously of moulds of industrial equipment.Two selected processing datums, exchange programmable controller just are convenient to calculate the displacement that pneumatic propelling unit advances.
As preferably, cover die in said method is for revolving the mould that contracts, this revolves the mould that contracts and adopts function L=h ∫ tg θ d θ formula to calculate the slope length L of mould, wherein h is the slope length of the shaped article that obtains of actual needs, θ is the curved surface inclination angle of the shaped article that obtains of actual needs, and the scope of this α requires to determine according to different converted products.
Revolving the mould design parameter that contracts that revolves that the processing of contracting uses continuously adopts curved surface tangent calculus to calculate decision, theoretical result calculated is carried out necessary finishing in conjunction with actual product needed again and is improved, final definite actual needed mould that contracts that accurately revolves of producing, wherein the Zheng Ti die curve range of tilt angles that contracts of revolving is 6 °～12 °, the angle of inclination is excessive or too small, all can not guarantee the normal moulding of taper surface.
Replacement scheme as such scheme, cover die in said method is different forging mould, this different forging mould adopts function #=arctg α formula to calculate the curved surface tiltangle of mould, wherein α is the curved surface inclination angle of the shaped article that obtains of actual needs, the scope of this α requires to determine that the scope of α is 6 ° ~ 11 ° according to different converted products.
It is definite that the parameter of the different forging mould that continuous different forging processing is used adopts arc cotangent function or arctan function to calculate, wherein Zheng Ti different forging mould curved surface range of tilt angles is 6 °～11 °, the angle of inclination is excessive or too small, all can not guarantee the moulding of taper surface.
As preferably, in formative stage b, the high workload hydraulic pressure of hydraulic pressure fastener is 20MPa.The working hydraulic pressure of hydraulic pressure fastener is determined by the external diameter of tubing to be processed, tube outer diameter to be processed is not more than 2MPa less than the working hydraulic pressure of 13mm, tube outer diameter to be processed greater than 13mm but less than the working hydraulic pressure scope of 15mm at 2MPa between the 6MPa, tube outer diameter to be processed is 6 ~ 12 MPa greater than the working hydraulic pressure scope of 15mm.
If hydraulic pressure is excessive in the processing process, will make the metal pipe material deflection excessive, serious impression appears in the outer surface of tubing simultaneously.If hydraulic pressure is too small, serious scuffing phenomenon will appear in the outer surface of metal pipe material, so must select optimal working hydraulic pressure to guarantee normally carrying out of production work.
The different forging forming machine that contracts is revolved in a kind of tubing taper, comprise and revolve contract different forging processing unit (plant), clamping and positioning device and power supply, it is characterized in that, also be provided with cooling water system, gas-liquid work station and exchange programmable controller on this make-up machine, the exchange programmable controller with revolve contract different forging processing unit (plant), clamping and positioning device, cooling water system and gas-liquid work station and all link to each other; Cooling water system follows back successively to connect by water pipe and revolves contract different forging processing unit (plant) and clamping and positioning device; The gas-liquid work station links to each other with clamping and positioning device;
This make-up machine is provided with the high voltage source of joining with peripheral three-phase electricity, and high voltage source connects low-tension supply by step-down transformer; High voltage source with revolve contract different forging processing unit (plant), clamping and positioning device, cooling water system and gas-liquid work station and join; Low-tension supply and exchange programmable controller join.
Control section partly adopts the entire arrangement of cooperating with frock in this former complete machine, if split is arranged and will be brought than burden aspects such as production operation, co-ordinations, so the present invention adopts high-low voltage power source power supply along separate routes to the each several part device according to concrete needed operating voltage, directly contact automatically controlled control device and exchange programmable controller and adopt low-tension supply 36V power supply; Revolve the different forging producing unit that contracts and adopt high voltage source 380V power supply.The advantage of the shunt high-low voltage power source power supply that the present invention adopts has two aspects, has guaranteed normally carrying out of shaping work on the one hand, has guaranteed producers' continued operation safety on the other hand.
As preferably, exchange programmable controller peripheral hardware point dynamic control device, the some dynamic control device links to each other with the exchange programmable controller by an electricity-saving appliance.Also be provided with safety protective circuit in the point of safes dynamic control device, the anxious break time of its short circuit is 1ms.
As preferably, the pneumatic propelling unit on the clamping and positioning device, hydraulic pressure fastener and locking mould, pneumatic propelling unit and hydraulic pressure fastener all are connected on the gas-liquid work station, and locking mould and pneumatic propelling unit and hydraulic pressure fastener are connected.The exchange programmable controller is assigned instruction and is started the gas-liquid work station, by supplying with the pneumatic propelling unit and the hydraulic pressure fastener of clamping and positioning device behind gas governor, hydraulic workstation and the relevant instrument adjuster.
As preferably, the described different forging processing unit (plant) that contracts that revolves is provided with cover die, and this cover die is equipped with core for revolving the mould that contracts, revolve to contract in the mould.
As the replacement scheme of such scheme, the described different forging processing unit (plant) that contracts that revolves is provided with cover die, and this cover die is different forging mould, is equipped with core in the different forging mould.
Beneficial effect: conditions such as (1) this method adopts that surface smoothness is good, Rockwell hardness is high, cover die and core Rockwell hardness are complementary are screened mould, help molding advantages such as the good and residuals content of the surfaces externally and internally fineness of good looking appearance, machining accuracy height, tubing of reducing tubing that non-ferrous metal is transition region with the conical region or taper reducer material parts is low.
(2) in forming process, utilize the exchange programmable controller to regulate and control the work of the each several part device of whole make-up machine, make that the each several part device in order, is more coordinated, high efficiency, guaranteed the continuity of machine-shaping process simultaneously.
(3) by cooling water system moulds of industrial equipment (cover die, core film, locking mould etc.) are cooled off, prevent the moulds of industrial equipment surface smoothness of its working face of deformation effect at high temperature, prolonged the surface smoothness that has improved machine-shaping tubing service life simultaneously of moulds of industrial equipment and the qualification rate of finished product.
Description of drawings
Fig. 1 is the structural representation of make-up machine of the present invention;
Fig. 2 is for revolving a kind of combining structure schematic diagram of contract different forging processing unit (plant) and clamping and positioning device in the make-up machine of the present invention;
Fig. 3 is for revolving the another kind of combining structure schematic diagram of contract different forging processing unit (plant) and clamping and positioning device in the make-up machine of the present invention.
Among the figure: 1-point dynamic control device, 2-electricity-saving appliance, 3-exchange programmable controller, 4-revolves the different forging processing unit (plant) that contracts, 5-clamping and positioning device, 6-cooling water system, 7-gas-liquid work station, 8-high voltage source, 9-low-tension supply, 10-core, 11-taper reducer material, 12-are the reducing tubing of transition region with the conical region, 13-revolves the mould that contracts, the different forging mould of 14-, and 15-locks mould, 16-hydraulic pressure fastener, the 17-pneumatic propelling unit.
The specific embodiment
The present invention is further illustrated below in conjunction with accompanying drawing and specific embodiment.
Embodiment 1: as shown in Figure 1, the different forging forming machine that contracts is revolved in a kind of tubing taper, comprises a dynamic control device 1, electricity-saving appliance 2, exchange programmable controller 3, revolves contract different forging processing unit (plant) 4, clamping and positioning device 5, cooling water system 6, gas-liquid work station 7, high voltage source 8 and low-tension supply 9.High voltage source 8 is joined with peripheral three-phase electricity, and high voltage source 8 obtains low-tension supply 9 by step-down transformer; High voltage source 8 with revolve contract different forging processing unit (plant) 4, clamping and positioning device 5, cooling water system 6 and gas-liquid work station 7 and join.Low-tension supply 9 is joined with exchange programmable controller 3 and some dynamic control device 1.
3 external somes dynamic control devices 1 of exchange programmable controller, some dynamic control device 1 links to each other with exchange programmable controller 3 by an electricity-saving appliance 2.Exchange programmable controller 3 regulation and control revolve the different forging processing unit (plant) 4 that contracts, clamping and positioning adorn 5 put, the co-ordination of cooling water system 6 and gas-liquid work station 7.Cooling water system 6 follows back successively to connect by water pipe and revolves contract different forging processing unit (plant) 4 and clamping and positioning device 5.
As shown in Figure 2, clamping and positioning device 4 is provided with pneumatic propelling unit 17, hydraulic pressure fastener 16 and locking mould 15, pneumatic propelling unit 17 and hydraulic pressure fastener 16 all are connected on the gas-liquid work station 6, and locking mould 15 is connected with pneumatic propelling unit 17 and hydraulic pressure fastener 16.Revolve to be equipped with on the different forging processing unit (plant) 4 that contracts and revolve the mould 13 that contracts, revolve in the mould 13 that contracts and be equipped with core 10.Revolve the mould 13 that contracts and be used for machine-shaping taper reducer material 11.
Utilizing said apparatus to carry out the tubing taper revolves shown in the method following steps of the different forging molding that contracts:
(1) preparation cover die;
Revolving the mould 13 that contracts adopts function L=h ∫ tg θ d θ formula to calculate the slope length L of mould, wherein h is the slope length of the shaped article that obtains of actual needs, θ is the curved surface inclination angle of the shaped article that obtains of actual needs, and the scope of this θ is 6 ° ~ 12 °.
(2) preparation;
A. select revolve in the mould 13 that contracts the conical camber surface smoothness be not less than 2 grades and Rockwell hardness scope at 48HRC to revolving of the 62HRC mould 13 that contracts;
B. the shaped article that obtains according to actual needs corresponding machined parameters conical camber tiltangle or ramp height h select and revolve the mould 13 that contracts accordingly;
C. specifying with this bottom surface of revolving the mould 13 that contracts is processing datum, and this is revolved the mould 13 that contracts is installed to revolving of make-up machine and contracts on the different forging processing unit (plant) 4;
The bell internal diameter of the shaped article that d. obtains is according to actual needs selected Rockwell hardness scope correspondingly at the core 10 of 62HRC to 67HRC, and this core 10 is inserted in the die cavity that revolves the mould 13 that contracts is mated;
E. select the Rockwell hardness scope at the locking mould 15 of 42HRC, specify these locking mould 15 bottom surfaces to be another processing datum, and be installed on the clamping and positioning device 5 of make-up machine to 50HRC;
(3) formative stage;
A. the conical camber tiltangle of the shaped article that actual needs is obtained, slope length L and these machined parameters of ramp height h are input in the exchange programmable controller 3 of make-up machine, and exchange programmable controller 3 is set at predefined parameter with these machined parameters and instructs mould 13 work of contracting of revolving of controlling;
The tubing that b. will need to process is placed in the locking mould 15, and its front end inner hole sleeve is located at core 10 heads, and is fixing with the hydraulic pressure fastener on the clamping and positioning device 5 16 again; The high workload hydraulic pressure of hydraulic pressure fastener 16 is 20MPa, the working hydraulic pressure of hydraulic pressure fastener 16 is determined by the external diameter of tubing to be processed, tube outer diameter to be processed is not more than 2MPa less than the working hydraulic pressure of 13mm, and tube outer diameter to be processed is 6 ~ 12 MPa greater than the working hydraulic pressure scope of 15mm.
C. the cooling water system 6 on the exchange programmable controller 3 unlatching make-up machines follows back clamping and positioning device 5 successively and revolves different forging processing unit (plant) 4 coolings of contracting by the water pipe feeding cold water;
D. this tubing drives advance and retreat by the pneumatic propelling unit on the clamping and positioning device 5 17, and its outer surface circumferentially is subjected to revolving the roll extrusion effect of mould 13 of contracting; Make the tapered reducing tubing 11 of this tube forming.
Embodiment 2: as shown in Figure 3, different forging mould 14 adopts function #=arctg α formula to calculate the curved surface tiltangle of mould, and wherein α is the curved surface inclination angle of the shaped article that obtains of actual needs, and the scope of this α is 6 ° ~ 11 °.The mould 13 that contracts that revolves with in these different forging mould 14 alternative embodiments 1 is used for the reducing tubing 12 that machine-shaping is transition region with the conical region.
Claims (10)
1. the different forging molding method that contracts is revolved in a tubing taper, it is characterized in that this method may further comprise the steps:
(1) preparation;
A. select conical surface fineness in the cover die and be not less than 2 grades and Rockwell hardness scope at the cover die of 48HRC to 62HRC;
B. the shaped article that obtains according to actual needs corresponding machined parameters taper tiltangle or ramp height h select corresponding cover die;
C. specifying the bottom surface with this cover die is a processing datum, and this cover die is installed to revolving of make-up machine contracts on the different forging processing unit (plant);
The bell internal diameter of the shaped article that d. obtains is according to actual needs selected corresponding Rockwell hardness scope at the core of 62HRC to 67HRC, and this core is inserted in the die cavity of cover die;
E. select the Rockwell hardness scope at the locking mould of 42HRC, specify this locking mould bottom surface to be another processing datum, and be installed on the clamping and positioning device of make-up machine to 50HRC;
(2) formative stage;
A. the conical camber tiltangle of the shaped article that actual needs is obtained, slope length L and these machined parameters of ramp height h are input in the exchange programmable controller of make-up machine, and the exchange programmable controller is set at predefined parameter with these machined parameters and instructs the cover die work of controlling;
The tubing that b. will need to process is placed in the locking mould, and its front end inner hole sleeve is located at the core head, fixes with the hydraulic pressure fastener on the clamping and positioning device again;
C. the exchange programmable controller is opened the cooling water system on the make-up machine, by circulate successively clamping and positioning device and revolve the different forging processing unit (plant) that contracts of water pipe;
D. this tubing drives advance and retreat by the pneumatic propelling unit on the clamping and positioning device, and the roll extrusion effect that its outer surface circumferentially is subjected to cover die makes that the tapered zone of this tube forming is the reducing tubing or the taper reducer material of transition region.
2. the different forging molding method that contracts is revolved in tubing taper according to claim 1, it is characterized in that, cover die in said method is for revolving the mould that contracts, this revolves the mould that contracts and adopts function L=h ∫ tg θ d θ formula to calculate the slope length L of mould, wherein h is the slope length of the shaped article that obtains of actual needs, θ is the curved surface inclination angle of the shaped article that obtains of actual needs, and the scope of this θ is 6 ° ~ 12 °.
3. the different forging molding method that contracts is revolved in tubing taper according to claim 1, it is characterized in that, cover die in said method is different forging mould, this different forging mould adopts function #=arctg α formula to calculate the curved surface tiltangle of mould, wherein α is the curved surface inclination angle of the shaped article that obtains of actual needs, and the scope of this α requires to determine according to different converted products.
4. revolve the different forging molding method that contracts according to claim 1 or 2 or 3 described tubing tapers, it is characterized in that, in formative stage b, the high workload hydraulic pressure of hydraulic pressure fastener is 20MPa.
5. the different forging molding method that contracts is revolved in tubing taper according to claim 4, it is characterized in that, the working hydraulic pressure of described hydraulic pressure fastener is determined by the external diameter of tubing to be processed, tube outer diameter to be processed is not more than 2MPa less than the working hydraulic pressure of 13mm, tube outer diameter to be processed greater than 13mm but less than the working hydraulic pressure scope of 15mm at 2MPa between the 6MPa, tube outer diameter to be processed is 6 ~ 12 MPa greater than the working hydraulic pressure scope of 15mm.
6. the different forging forming machine that contracts is revolved in a tubing taper, comprise and revolve contract different forging processing unit (plant), clamping and positioning device and power supply, it is characterized in that, also be provided with cooling water system, gas-liquid work station and exchange programmable controller on this make-up machine, the exchange programmable controller with revolve contract different forging processing unit (plant), clamping and positioning device, cooling water system and gas-liquid work station and all link to each other; Cooling water system circulates successively by water pipe and connects clamping and positioning device and revolve the different forging processing unit (plant) that contracts; The gas-liquid work station links to each other with clamping and positioning device;
This make-up machine is provided with the high voltage source of joining with peripheral three-phase electricity, and high voltage source connects low-tension supply by step-down transformer; High voltage source with revolve contract different forging processing unit (plant), clamping and positioning device, cooling water system and gas-liquid work station and join; Low-tension supply and exchange programmable controller join.
7. the different forging forming machine that contracts is revolved in tubing taper according to claim 6, it is characterized in that, described exchange programmable controller peripheral hardware point dynamic control device, and the some dynamic control device links to each other with the exchange programmable controller by electricity-saving appliance.
8. the different forging forming machine that contracts is revolved in tubing taper according to claim 6, it is characterized in that, described clamping and positioning device is provided with pneumatic propelling unit, hydraulic pressure fastener and locking mould, pneumatic propelling unit and hydraulic pressure fastener all are connected on the gas-liquid work station, and locking mould and pneumatic propelling unit and hydraulic pressure fastener are connected.
9. revolve the different forging forming machine that contracts according to claim 6 or 7 or 8 described tubing tapers, it is characterized in that, revolve the different forging processing unit (plant) that contracts and be provided with cover die, this cover die is equipped with core for revolving the mould that contracts, revolve to contract in the mould.
10. revolve the different forging forming machine that contracts according to claim 6 or 7 or 8 described tubing tapers, it is characterized in that, revolve the different forging processing unit (plant) that contracts and be provided with cover die, this cover die is different forging mould, is equipped with core in the different forging mould.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010140882 CN102211122B (en) | 2010-04-08 | 2010-04-08 | Conical spiral-reduction special-forging forming machine and forming method for pipes |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010140882 CN102211122B (en) | 2010-04-08 | 2010-04-08 | Conical spiral-reduction special-forging forming machine and forming method for pipes |
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| CN102211122A true CN102211122A (en) | 2011-10-12 |
| CN102211122B CN102211122B (en) | 2013-03-27 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102601199A (en) * | 2012-02-29 | 2012-07-25 | 苏州经贸职业技术学院 | Precise-spin reducing device for fixed core type thin wall pipe |
| CN108856410A (en) * | 2018-06-13 | 2018-11-23 | 开平市祺龙五金塑胶有限公司 | A kind of nozzle processing unit (plant) and its processing method |
| CN109013937A (en) * | 2018-08-13 | 2018-12-18 | 宋丽 | A kind of reducing device of precompressed compact form automobile air-conditioning pipe processing |
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| US3195331A (en) * | 1960-08-22 | 1965-07-20 | United Aircraft Corp | Tube drawing apparatus |
| CN1421288A (en) * | 2002-12-31 | 2003-06-04 | 华南理工大学 | Multifunctional rotary press modelling machine |
| JP2007050423A (en) * | 2005-08-17 | 2007-03-01 | Univ Of Electro-Communications | Method and die for squeezing metallic round pipe |
| CN201049370Y (en) * | 2007-04-09 | 2008-04-23 | 冈山精工(中山)有限公司 | Reducing pipe spinning processing device |
| CN201644603U (en) * | 2010-04-08 | 2010-11-24 | 浙江康盛股份有限公司 | Conical spiral-necking heterotypic-forge forming machine for pipe |
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3195331A (en) * | 1960-08-22 | 1965-07-20 | United Aircraft Corp | Tube drawing apparatus |
| CN1421288A (en) * | 2002-12-31 | 2003-06-04 | 华南理工大学 | Multifunctional rotary press modelling machine |
| JP2007050423A (en) * | 2005-08-17 | 2007-03-01 | Univ Of Electro-Communications | Method and die for squeezing metallic round pipe |
| CN201049370Y (en) * | 2007-04-09 | 2008-04-23 | 冈山精工(中山)有限公司 | Reducing pipe spinning processing device |
| CN201644603U (en) * | 2010-04-08 | 2010-11-24 | 浙江康盛股份有限公司 | Conical spiral-necking heterotypic-forge forming machine for pipe |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102601199A (en) * | 2012-02-29 | 2012-07-25 | 苏州经贸职业技术学院 | Precise-spin reducing device for fixed core type thin wall pipe |
| CN108856410A (en) * | 2018-06-13 | 2018-11-23 | 开平市祺龙五金塑胶有限公司 | A kind of nozzle processing unit (plant) and its processing method |
| CN109013937A (en) * | 2018-08-13 | 2018-12-18 | 宋丽 | A kind of reducing device of precompressed compact form automobile air-conditioning pipe processing |
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| Publication number | Publication date |
|---|---|
| CN102211122B (en) | 2013-03-27 |
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