CN210334060U - High-efficient high accuracy processing frock of copper capillary reducing or pipe fitting - Google Patents
High-efficient high accuracy processing frock of copper capillary reducing or pipe fitting Download PDFInfo
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- CN210334060U CN210334060U CN201822126991.4U CN201822126991U CN210334060U CN 210334060 U CN210334060 U CN 210334060U CN 201822126991 U CN201822126991 U CN 201822126991U CN 210334060 U CN210334060 U CN 210334060U
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Abstract
The utility model relates to a high-efficiency and high-precision processing tool and a processing technology for copper capillary reducing or pipe fittings, which is provided with a step-shaped punch head, wherein the punch head comprises a first flaring processing section, a first molding section, a second flaring processing section, a second molding section and a clamping section which are connected in sequence; the diameters of the first flaring machining section, the first forming section, the second flaring machining section, the second forming section and the clamping section are gradually increased, and the sections of the first flaring machining section and the second flaring machining section are in conical structures; the cross sections of the first forming section and the second forming section are both square structures, and transition fillets are arranged at four corners of each square structure. This high-efficient high accuracy processing frock of copper capillary reducing or pipe fitting can reduce manufacturing procedure, effectively ensures processingquality, shortens process time, improves production machining efficiency.
Description
Technical Field
The utility model belongs to the technical field of the technique of air conditioner refrigeration trade and specifically relates to a high-efficient high accuracy processing frock of copper capillary reducing or pipe fitting.
Background
With the continuous development of society, air conditioners are widely used. In the air-conditioning refrigeration industry, when the copper pipe or the copper capillary is further flared, the flaring is carried out from a smaller outer diameter to a larger outer diameter, repeated processing is needed for many times, the tool is frequently replaced, the equipment is frequently adjusted, the precision and the efficiency are low, the energy consumption is large, the labor intensity is high due to frequent actions of staff, the production and processing time is long, and the production and processing precision cannot be well guaranteed.
Disclosure of Invention
The to-be-solved technical problem of the utility model is: in order to solve the problems existing in the background technology, the high-efficiency and high-precision machining tool for the reducing copper capillary or the pipe fitting is provided, the machining processes can be reduced, the machining quality is effectively guaranteed, the machining time is shortened, and the production and machining efficiency is improved.
The utility model provides a technical scheme that its technical problem adopted is: a high-efficiency high-precision machining tool for copper capillary reducing or pipe fittings is provided with a stepped punch, wherein the punch comprises a first flaring machining section, a first forming section, a second flaring machining section, a second forming section and a clamping section which are sequentially connected; the diameters of the first flaring machining section, the first forming section, the second flaring machining section, the second forming section and the clamping section are gradually increased, and the sections of the first flaring machining section and the second flaring machining section are in conical structures; the cross sections of the first forming section and the second forming section are of square structures, and transition fillets are arranged at four corners of each square structure.
Further, in the above technical solution, the first flaring machining section, the first forming section, the second flaring machining section, the second forming section, and the clamping section are integrated.
In the above technical solution, a first planar cutting groove is formed in the peripheral side wall of the first forming section along the length direction.
In the above technical solution, a second planar cutting groove is formed in the peripheral side wall of the second secondary forming section along the length direction.
In the above technical solution, a third planar cutting groove is formed in the conical portion at the front end of the first flaring machining stage along the side wall in the conical surface direction.
Further limiting, in the technical scheme, the diameter range of the first forming section is 3-5 mm, and the length range is 20-25 mm.
Further limiting, in the above technical scheme, the diameter range of the second secondary forming section is 5-10 mm, and the length range is 25-35 mm.
The utility model has the advantages that: the utility model provides a pair of high-efficient high accuracy processing frock of copper capillary reducing or pipe fitting can reduce manufacturing procedure, effectively ensures processingquality, shortens process time, improves production machining efficiency.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments described in the present application, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic structural diagram of the present invention;
fig. 2 is a side view of fig. 1.
The reference numbers in the drawings are: 1. the device comprises a punch, 2, a first flaring machining section, 3, a first forming section, 4, a second flaring machining section, 5, a second forming section, 6, a clamping section, 7, a transition fillet, 8, a first planar cutting groove, 9, a second planar cutting groove, 10 and a third planar cutting groove.
Detailed Description
In the application, a copper pipe or a capillary copper pipe produced by a horizontal continuous casting and cold drawing method is used as a reducer pipe blank, the outer diameter is generally 3.2-9.52 mm, the length is 120-1250 mm, the wall thickness is 0.5-1.2 mm, the size of a stepped punch 1 is determined according to the specification and model of a product, the diameter ratio of the large diameter to the small diameter is 1.2-1.5: 1, the length of the large diameter and the small diameter does not exceed 15/30mm according to the product requirement, in order to avoid the serious wall reduction phenomenon in the processing process, the angle of the punch needs to be strictly controlled at 12-16 degrees, and corresponding cutting grooves are processed to facilitate heat dissipation and copper pipe processing; the large end of a product produced by one-step spinning by adopting a reducing step flaring method is generally between 4.76 and 12.7 mm.
The processing method mainly uses equipment which is a full-automatic rotary pipe end machine or other automatic manual rotary stamping equipment, and is powered by a servo motor, a general motor or a hydraulic system, the power is 4.5 kilowatts, the rotating speed of a flaring motor is 1500-3200 rpm, the operating speed of the servo motor is 1300-3000 rpm, the output pressure of the hydraulic system is 70 MPa, and the processing temperature is generally lower than 80 ℃; the clamping tool adopts a specification model corresponding to the specification model of the product blank pipe; the method has the advantages that the original single-mode double-station processing is reduced to single-mode single-station processing, so that the processing efficiency is greatly improved, and the cost consumption is reduced; the processing method or the tool realizes that the stepped capillary reducer pipe is processed and produced by using the spinning processing forming stepped flaring punch customized according to different product specifications and utilizing the power provided by a servo motor programming control and a general motor or a hydraulic system in the same station or clamping die in one rotating stamping stroke.
As shown in fig. 1 and 2, the efficient high-precision machining tool for the reducing copper capillary tubes or the pipe fittings is provided with a stepped punch 1, wherein the punch 1 comprises a first flaring machining section 2, a first forming section 3, a second flaring machining section 4, a second forming section 5 and a clamping section 6 which are sequentially connected; the diameters of the first flaring machining section 2, the first forming section 3, the second flaring machining section 4, the second forming section 5 and the clamping section 6 are gradually increased, and the sections of the first flaring machining section 2 and the second flaring machining section 4 are in tapered structures; the cross sections of the first forming section 3 and the second forming section 5 are both square structures, and transition fillets 7 are arranged at four corners of each square structure.
Wherein, the first flaring machining section 2, the first forming section 3, the second flaring machining section 4, the second forming section 5 and the clamping section 6 are of an integral structure. The first forming section 3 forms a first planar cutting groove 8 along the peripheral side wall in the length direction. The second secondary forming section 5 forms a second planar cutting groove 9 along the peripheral side wall of the length direction. The conical part at the front end of the first flaring machining section 2 forms a third planar cutting groove 10 along the side wall of the conical surface direction. The diameter range of the first forming section 3 is 3-5 mm, and the length range is 20-25 mm. The diameter range of the second forming section 5 is 5-10 mm, and the length range is 25-35 mm.
A high-efficiency high-precision machining process for copper capillary reducing or pipe fittings comprises the following steps: firstly, fixedly clamping a stepped punch 1 on a full-automatic rotary pipe end machine or other automatic manual rotary punching equipment; then clamping and fixing the part needing pipe expansion; step two, adopting a stepped punch 1 to continuously punch the pipe fitting through an external controller or manual control; step three, returning the stepped punch 1; fourthly, returning the clamping die; and fifthly, unloading the machined pipe fitting.
The specific processing principle of the high-efficiency high-precision processing tool for the copper capillary reducing or pipe fittings is as follows:
firstly, clamping a copper pipe between clamping dies, adopting a stepped punch 1 to rotate at a high speed under the drive of a common motor, accurately positioning under the drive of a servo motor, and then linearly pushing the copper pipe into the inner diameter of the copper pipe along the central line direction of the copper pipe, forcing copper metal to flow along the radial direction of the linear motion direction of the stepped punch by 90 degrees, longitudinally (or parallelly) by 180 degrees, flow at 60-120 degrees with the conical surface of the punch under the action of the linear thrust of the stepped punch, the torsional force of the high-speed rotation and the angle expansion force of the punch, and performing expansion, shortening and forming on the copper pipe to finish first deformation, then performing continuous processing on the copper pipe processed and formed in the first stage in the second stage of the stepped punch 1, repeatedly performing expansion, shortening and forming to finish second deformation, wherein the second processing amount is 25-30% of the first processing amount, and mainly achieving the standard requirements of shaping, the diameters of finished products are respectively 4.76-10.5 mm after the first-stage forming of a processing end with a small end of 3.2-9.52 mm and 7-12.7 mm after the second-stage forming; the good elongation of copper is fully utilized by the combined processing mode of the stepped punch 1, the processing efficiency is greatly improved, the comprehensive processing amount reaches 200% of the basic size, meanwhile, the reasonable punch angle, the punching speed and the rotation speed determine the metal flow direction and the finished product wall thickness, the finished product wall thickness reduction rate is reduced by 50% from the original value to be improved to 30-40% (for example, the wall thickness of a copper pipe is 1mm, the wall thickness after the processing by the original method is 0.5mm, the processing by the existing method is 0.6-0.7 mm, the wall thickness is increased, the leakage rate of an air conditioner or refrigeration device is reduced), the end part of the punch is processed according to the angle, and is provided with a cutting groove which is mainly used for reducing the processing resistance, dissipating heat and.
The traditional common punch equipment for the same reducer pipe product completes the machining action by 8 steps: clamping a die, punching a common punch, returning, shifting a tool, punching the common punch, returning the tool, and returning a clamping die.
The equipment using the stepped punch 1 only needs 4 processing actions: clamping a die, continuously stamping a stepped punch, returning and returning a clamping die.
In conclusion, the processing procedure can be greatly reduced, the whole labor intensity is reduced, the reaming processing quality of the product is effectively guaranteed, and the whole production and processing efficiency is improved.
The above-mentioned, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.
Claims (7)
1. The utility model provides a high-efficient high accuracy processing frock of copper capillary reducing or pipe fitting which characterized in that: the punch comprises a first flaring machining section, a first forming section, a second flaring machining section, a second forming section and a clamping section which are connected in sequence; the diameters of the first flaring machining section, the first forming section, the second flaring machining section, the second forming section and the clamping section are gradually increased, and the sections of the first flaring machining section and the second flaring machining section are in conical structures; the cross sections of the first forming section and the second forming section are of square structures, and transition fillets are arranged at four corners of each square structure.
2. The high-efficiency and high-precision machining tool for the copper capillary reducing or pipe fittings according to claim 1, and is characterized in that: the first flaring machining section, the first forming section, the second flaring machining section, the second forming section and the clamping section are of an integral structure.
3. The high-efficiency and high-precision machining tool for the copper capillary reducing or pipe fittings according to claim 1, and is characterized in that: and a first planar cutting groove is formed on the peripheral side wall of the first forming section along the length direction.
4. The high-efficiency and high-precision machining tool for the copper capillary reducing or pipe fittings according to claim 1, and is characterized in that: and a second planar cutting groove is formed on the peripheral side wall of the second secondary forming section along the length direction.
5. The high-efficiency and high-precision machining tool for the copper capillary reducing or pipe fittings according to claim 1, and is characterized in that: and a third planar cutting groove is formed on the side wall of the conical part at the front end of the first flaring machining section along the conical surface direction.
6. The high-efficiency and high-precision machining tool for the copper capillary reducing or pipe fittings according to claim 1, and is characterized in that: the diameter range of the first forming section is 3-5 mm, and the length range is 20-25 mm.
7. The high-efficiency and high-precision machining tool for the copper capillary reducing or pipe fittings according to claim 1, and is characterized in that: the diameter range of the second molding section is 5-10 mm, and the length range is 25-35 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822126991.4U CN210334060U (en) | 2018-12-18 | 2018-12-18 | High-efficient high accuracy processing frock of copper capillary reducing or pipe fitting |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822126991.4U CN210334060U (en) | 2018-12-18 | 2018-12-18 | High-efficient high accuracy processing frock of copper capillary reducing or pipe fitting |
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| CN210334060U true CN210334060U (en) | 2020-04-17 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109909388A (en) * | 2018-12-18 | 2019-06-21 | 广东龙丰精密铜管有限公司 | A kind of reduced copper capillary tube or pipe fitting high-efficiency high-accuracy processing tool and processing technology |
-
2018
- 2018-12-18 CN CN201822126991.4U patent/CN210334060U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109909388A (en) * | 2018-12-18 | 2019-06-21 | 广东龙丰精密铜管有限公司 | A kind of reduced copper capillary tube or pipe fitting high-efficiency high-accuracy processing tool and processing technology |
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