Ultrathin-wall copper pipe coil stretching device

Abstract

The utility model discloses an ultrathin-wall copper pipe coil stretching device, and belongs to the technical field of copper pipe machining. An ultra-thin-wall copper pipe coil drawing device comprises a fixing cylinder and further comprises a rotating ring rotationally arranged in the other end of the fixing cylinder, a fixing ring is detachably arranged on the side, away from a drawing die, of the rotating ring, a lubricating cylinder with the two through ends is fixedly arranged on the inner wall of the fixing ring, and one end of the lubricating cylinder extends to the input end of the drawing die. A lubricating pad of an annular structure is fixedly arranged on the inner wall of the lubricating cylinder, and the inner wall of the lubricating pad abuts against the outer wall of the copper pipe. The rotating ring is rotationally arranged in the fixed cylinder, the lubricating cylinder is arranged on the rotating ring, and the lubricating pad of the annular structure is fixedly arranged on the inner wall of the lubricating cylinder, so that the copper pipe can be lubricated in the moving process, and the rotating ring can drive the lubricating cylinder and the lubricating pad to rotate to lubricate the copper pipe; lubricating oil is evenly smeared on the outer wall of the copper pipe, and the lubricating effect can be improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to copper pipe processing technical field especially relates to a kind of ultra-thin wall copper pipe disc pull stretch device. BACKGROUND

[0002] Copper pipe disc pull stretch device is the core equipment of copper pipe precision machining, realizes the reducing of copper pipe, sizing and surface quality optimization by stretching process, and is finally wound into disc-shaped finished product.The core function is to improve the dimensional accuracy (tolerance ±0.02mm) of copper pipe, mechanical properties and surface finish (Ra<0.8μm), and is widely used in high-precision copper pipe manufacturing in refrigeration, power and other fields.The device is mainly composed of pay-off device (including tension control and straightening), stretching die (hard alloy / diamond die), traction clamping system, coiling device and lubricating cooling system, assisted by PLC automation control and online detection technology (such as laser diameter gauge), to realize continuous and efficient production.In the stretching process, tension control and die centering are the key to ensure the stable formation of thin-walled copper pipe under low friction and constant temperature.By replacing the die, the pipe specifications can be flexibly adjusted to meet diversified needs, especially suitable for high-consistency production of ultra-thin wall copper pipe (wall thickness ≤0.1mm) such as air conditioning refrigeration pipe, which reflects the deep integration of mechanical force control and intelligent manufacturing.

[0003] At present, in the copper pipe stretching process, usually spray head is used to spray lubricating oil on the surface of copper pipe to reduce the friction between copper pipe and stretching die, but during the spraying process, it is difficult to achieve uniform spraying on the surface of copper pipe using spray head, which affects the lubricating effect. UTILITY MODEL CONTENTS

[0004] The utility model aims at solving the problem of uneven spraying in the prior art when using spray head to spray lubricating oil on copper pipe, and provides a kind of ultra-thin wall copper pipe disc pull stretch device.

[0005] To achieve the above object, the utility model adopts the following technical scheme:

[0006] A kind of ultra-thin wall copper pipe disc pull stretch device, including fixed cylinder, the fixed cylinder one end is detached and is provided with stretching die, still include rotation ring that is rotationally arranged in the other end of the fixed cylinder, the rotation ring side away from stretching die is detached and is provided with fixed ring, the fixed ring inner wall is fixed and is provided with lubricating cylinder that penetrates two ends, wherein, the lubricating cylinder one end extends to the input end of stretching die, and the lubricating cylinder inner wall is fixed and is provided with the annular structure of lubricating pad, the lubricating pad inner wall is in abutment with the outer wall of copper pipe, oil supply part for the lubricating pad is provided on the fixed cylinder.

[0007] In order to facilitate oil supply for the lubricating pad, preferably, the oil supply part comprises an oil pump fixedly arranged on the fixed cylinder, an oil tank detachably arranged on the fixed cylinder, a fixed pipe with a valve fixedly arranged at the bottom of the oil tank, one end of the oil pump communicated with the fixed pipe through a first pipeline, an annular oil storage groove arranged on the inner wall of the lubricating cylinder, the outer wall of the lubricating pad fixedly arranged at the opening of the oil storage groove, and the other end of the oil pump fixedly arranged with a second pipeline for supplying oil to the oil storage groove.

[0008] In order to reliably supply oil for the lubricating pad during rotation of the rotating ring, further, a second annular groove is arranged on the outer wall of the rotating ring, a first annular groove is arranged on one side wall of the rotating ring and communicated with the second annular groove, a third annular groove is arranged on the side wall of the fixed ring and communicated with the first annular groove, the third annular groove is communicated with the oil storage groove through a plurality of third pipelines, and the second pipeline is communicated with the second annular groove at the end away from the oil pump.

[0009] In order to facilitate installation of the stretching die and the lubricating cylinder, further, a first cavity and a second cavity are arranged in the fixed cylinder and communicated with each other, the stretching die is arranged in the first cavity, and the rotating ring and the lubricating cylinder are arranged in the second cavity.

[0010] Further, the bottom of the first cavity and the bottom of the second cavity are communicated through an oil collecting groove, a drain hole is arranged on the fixed cylinder and communicated with the bottom of the oil collecting groove, an oil inlet pipe is fixedly arranged on the top of the oil tank, the outer wall of the oil inlet pipe is threadedly connected with the inner wall of the drain hole, and a filter screen is arranged in the oil inlet pipe.

[0011] Preferably, a first gear is rotatably arranged in the fixed cylinder, the first gear is engaged with the other side wall of the rotating ring, and a driving member is arranged on the fixed cylinder for driving rotation of the first gear.

[0012] Compared with the prior art, the ultra-thin wall copper pipe disc pull stretching device has the following beneficial effects:

[0013] 1. The ultra-thin wall copper pipe disc pull stretching device, by rotatably arranging a rotating ring in a fixed cylinder, arranging a lubricating cylinder on the rotating ring, and fixedly arranging a lubricating pad in an annular structure on the inner wall of the lubricating cylinder, not only can lubricate the copper pipe during movement, but also the rotating ring can rotate with the lubricating cylinder and the lubricating pad to lubricate the copper pipe, and the lubricating oil can be evenly applied on the outer wall of the copper pipe, which helps to improve the lubricating effect.

[0014] 2. The ultra-thin wall copper pipe disc pull stretching device, by detachably arranging an oil tank in the drain hole, on the one hand, the lubricating oil flowing down from the copper pipe, the stretching die and the lubricating cylinder can be collected and reused, and on the other hand, the oil tank can be easily replaced or maintained, improving the use effect.

[0015] The part not involved in the device is the same as or can be realized by the prior art, the utility model discloses a rotating ring is arranged in the fixed cylinder, the lubricating cylinder is arranged on the rotating ring, and the annular structure lubricating pad is fixedly arranged on the inner wall of the lubricating cylinder, not only can lubricate the copper pipe during the movement, and the rotating ring can be with the lubricating cylinder and lubricating pad rotation lubricates the copper pipe, can evenly spread lubricating oil on the outer wall of copper pipe, help to improve the lubricating effect. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 The structure diagram of the ultra-thin wall copper pipe disc draw stretching device is provided for the utility model Figure 1 ;

[0017] Figure 2 The structure diagram of the ultra-thin wall copper pipe disc draw stretching device is provided for the utility model Figure 2 ;

[0018] Figure 3 The sectional view of the fixed cylinder of the ultra-thin wall copper pipe disc draw stretching device is provided for the utility model

[0019] Figure 4 The structure diagram of the ultra-thin wall copper pipe disc draw stretching device is provided for the utility model Figure 3 The enlarged view of part A.

[0020] In the drawing: 1, fixed cylinder;101, base;102, first cavity;103, second cavity;104, oil collecting groove;105, oil discharge hole;2, stretching die;3, rotating ring;301, first annular groove;302, second annular groove;303, first gear;4, lubricating cylinder;401, lubricating pad;402, third annular groove;403, oil storage groove;5, oil drum. DETAILED DESCRIPTION

[0021] The technical scheme in the embodiments of the utility model will be clearly and completely described below in combination with the drawings in the embodiments of the utility model, obviously, the described embodiments are only a part of the embodiments of the utility model, not all the embodiments.

[0022] In the description of the utility model, it is understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawing, and are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, therefore, it cannot be understood as a limitation on the utility model.

[0023] Embodiment:

[0024] Referring to Figures 1-4 A kind of ultra-thin copper tube disc drawing stretching device, including fixed cylinder 1, in one end of fixed cylinder 1, detachably set with drawing die 2, here, we preferably bolt drawing die 2 on fixed cylinder 1, the axis of fixed cylinder 1 is horizontal state, fixedly set with base 101 at the bottom of fixed cylinder 1, can be realized by base 101 with fixed cylinder 1 is fixed on drawing equipment, it further includes rotationally arranged in the other end of fixed cylinder 1 with rotating ring 3, detachably set with fixed ring on the side of rotating ring 3 away from drawing die 2, here, we also bolt fixed ring on the side wall of rotating ring 3, rotationally arranged with first gear 303 in fixed cylinder 1, first gear 303 is engaged with the other side wall of rotating ring 3, that is, the other side wall of rotating ring 3 is face gear, when driving first gear 303 rotates, can be rotated with rotating ring 3 around its axis by face gear, lubricating oil is applied to the surface of copper pipe during rotation, it is helpful to realize uniform lubrication effect, and driving member for driving first gear 303 rotation is arranged on fixed cylinder 1, driving member can be servo motor or motor, here, preferably servo motor, it is convenient to drive rotating ring 3 rotation, lubricating cylinder 4 with two ends through is fixedly arranged on the inner wall of fixed ring, the input end of drawing die 2 is extended to one end of lubricating cylinder 4, and annular structure lubricating pad 401 is fixedly arranged on the inner wall of lubricating cylinder 4, lubricating pad 401 is felt or fiber pad, preferably fiber pad with certain elasticity, such as synthetic fiber (nylon, polyester) or natural fiber (cotton, wool), to ensure the stability of long-term use, after using for a period of time, the fixed ring can be detached from rotating ring 3, and the lubricating pad 401 is cleaned or replaced, the inner wall of lubricating pad 401 is in contact with the outer wall of copper pipe, and the lubricating oil can be uniformly applied to the outer wall of copper pipe when the copper pipe moves during stretching, which helps to improve the lubrication effect, the oil supply part for supplying oil to the lubricating pad 401 is arranged on the fixed cylinder 1, and the oil supply part can continuously supply oil to the lubricating pad 401.

[0025] In use, rotating ring 3 is rotationally arranged in fixed cylinder 1, lubricating cylinder 4 is arranged on rotating ring 3, and annular structure lubricating pad 401 is fixedly arranged on the inner wall of lubricating cylinder 4, which not only lubricates the copper pipe during movement, but also rotates with lubricating cylinder 4 and lubricating pad 401 to lubricate the copper pipe, which can uniformly apply lubricating oil to the outer wall of the copper pipe, thereby improving the lubrication effect.

[0026] Referring to Figures 1-3Here, we will set the oil supply part to be fixed on the fixed cylinder 1, preferably the oil pump is fixed on the base 101, the oil tank 5 is detachably arranged on the fixed cylinder 1, the fixed pipe with valve is fixed at the bottom of the oil tank 5, one end of the oil pump is connected with the fixed pipe through the first pipeline, the first pipeline is inserted and connected with the fixed pipe, which is convenient for the disassembly of the oil tank 5 under the condition of ensuring reliable connection and no leakage, the oil storage groove 403 with annular structure is arranged on the inner wall of the lubricating cylinder 4, the outer wall of the lubricating pad 401 is fixed on the opening of the oil storage groove 403, that is, the lubricating pad 401 is fixed on the opening of the oil storage groove 403, which is convenient for the lubricating pad 401 to be continuously supplied with oil through the oil storage groove 403, and the other end of the oil pump is fixed with the second pipeline for supplying oil to the oil storage groove 403. In use, the lubricating oil in the oil tank 5 can be pumped away through the first pipeline by starting the oil pump, and then delivered to the oil storage groove 403 through the second pipeline, and the lubricating pad 401 autonomously absorbs the lubricating oil from the oil storage groove 403, realizing continuous smearing of the lubricating oil on the copper pipe and improving the use effect.

[0027] Referring to Figure 3 and Figure 4 The second annular groove 302 is arranged on the outer wall of the rotating ring 3, the first annular groove 301 is arranged on one side wall of the rotating ring 3 and communicated with the second annular groove 302, the third annular groove 402 is arranged on the side wall of the fixed ring and communicated with the first annular groove 301, and the third annular groove 402 is communicated with the oil storage groove 403 through a plurality of third pipelines, the third pipeline is provided with two to ten, preferably six, which are evenly distributed in a circle, facilitating the lubricating oil in the third annular groove 402 to flow into the oil storage groove 403, and the second pipeline is communicated with the second annular groove 302 at the end away from the oil pump, and the sealing ring is arranged at the connection between the first annular groove 301 and the third annular groove 402 and at the connection between the second annular groove 302 and the fixed cylinder 1, which can reduce the leakage of lubricating oil and improve the use effect. In use, the second annular groove 302 is arranged on the rotating ring 3, which can reliably supply oil to the oil storage groove 403 during the rotation of the rotating ring 3.

[0028] Referring to Figure 2 and Figure 3 The first cavity 102 and the second cavity 103 are arranged in the fixed cylinder 1 and communicated with each other, the stretching die 2 is arranged in the first cavity 102 by bolts, and the rotating ring 3 and the lubricating cylinder 4 are arranged in the second cavity 103, which facilitates the installation of the stretching die 2 and the lubricating cylinder 4, and the axis of the lubricating cylinder 4 coincides with the axis of the stretching die 2.

[0029] Referring to Figures 1-3The bottom of the first cavity 102 and the bottom of the second cavity 103 are communicated through the oil collecting groove 104, the lubricating oil flowing from the copper pipe, the drawing die 2 and the lubricating cylinder 4 can be collected, the oil outlet hole 105 communicated with the bottom of the oil collecting groove 104 is arranged on the fixing cylinder 1, the oil inlet pipe is fixedly arranged on the top of the oil bucket 5, the outer wall of the oil inlet pipe is screwed with the inner wall of the oil outlet hole 105, the extension pipe extending into the oil inlet pipe is fixedly arranged at the output end of the oil outlet hole 105, the lubricating oil flowing outside the oil bucket 5 can be reduced, the filter screen is arranged in the oil inlet pipe, the solid particles in the lubricating oil entering the oil bucket 5 can be filtered and intercepted, in use, the oil bucket 5 is arranged in the oil outlet hole 105, on one hand, the lubricating oil flowing from the copper pipe, the drawing die 2 and the lubricating cylinder 4 can be collected and reused, on the other hand, the oil bucket 5 is convenient to replace or maintain, and the use effect is improved.

[0030] The above is only the preferred embodiment of the present application, but the protection scope of the present application is not limited to this, any skilled person in the art can make equivalent replacement or change according to the technical scheme and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered in the protection scope of the present application.

Claims

1. An ultra-thin-walled copper tube disc-drawing and stretch-drawing device, comprising a fixed cylinder (1), an end of which is detachably provided with a stretch-drawing die (2), characterized in that, Also include rotating ring (3) arranged in the fixed cylinder (1) the other end, the rotating ring (3) away from the side of the drawing die (2) is detachably provided with a fixed ring, the inner wall of the fixed ring is fixedly provided with a lubricating cylinder (4) penetrating through both ends, Wherein, the lubricating cylinder (4) one end to the input end of the drawing die (2) extends, and the inner wall of the lubricating cylinder (4) is fixedly provided with a lubricating pad (401) in the form of annular structure, the inner wall of the lubricating pad (401) is in abutment with the outer wall of the copper pipe, and the fixed cylinder (1) is provided with an oil supply part for supplying oil to the lubricating pad (401).

2. The disc drawing and elongation device for an ultra-thin-walled copper tube according to claim 1, characterized in that, The oil supply part includes an oil pump fixedly arranged on the fixed cylinder (1), and an oil tank (5) detachably arranged on the fixed cylinder (1), wherein the bottom of the oil tank (5) is fixedly provided with a fixed pipe with a valve, one end of the oil pump is communicated with the fixed pipe through a first pipeline, the inner wall of the lubricating cylinder (4) is provided with an annular oil storage groove (403), the outer wall of the lubricating pad (401) is fixedly arranged at the opening of the oil storage groove (403), and the other end of the oil pump is fixedly provided with a second pipeline for supplying oil to the oil storage groove (403).

3. The device according to claim 2, wherein the device is characterized by: The outer wall of the rotating ring (3) is provided with a second annular groove (302), one side wall of the rotating ring (3) is provided with a first annular groove (301) communicated with the second annular groove (302), the side wall of the fixed ring is provided with a third annular groove (402) communicated with the first annular groove (301), and the third annular groove (402) is communicated with the oil storage groove (403) through a plurality of third pipelines, and one end of the second pipeline away from the oil pump is communicated with the second annular groove (302).

4. The drawing device according to claim 2, wherein The fixed cylinder (1) is provided with a first cavity (102) and a second cavity (103) communicated with each other, the drawing die (2) is arranged in the first cavity (102), and the rotating ring (3) and the lubricating cylinder (4) are arranged in the second cavity (103).

5. The device according to claim 4, wherein the device is characterized by: The bottom of the first cavity (102) and the bottom of the second cavity (103) are communicated through an oil collecting groove (104), the fixed cylinder (1) is provided with a oil discharge hole (105) communicated with the bottom of the oil collecting groove (104), the top of the oil tank (5) is fixedly provided with an oil inlet pipe, the outer wall of the oil inlet pipe is threadedly connected with the inner wall of the oil discharge hole (105), and the oil inlet pipe is provided with a filter screen.

6. The device according to claim 1, wherein The fixed cylinder (1) is rotatably provided with a first gear (303), the first gear (303) is engaged with the other side wall of the rotating ring (3), and the fixed cylinder (1) is provided with a driving member for driving the first gear (303) to rotate.

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