CN110280647B - Spinning device for internal thread copper pipe - Google Patents
Spinning device for internal thread copper pipe Download PDFInfo
- Publication number
- CN110280647B CN110280647B CN201910701118.XA CN201910701118A CN110280647B CN 110280647 B CN110280647 B CN 110280647B CN 201910701118 A CN201910701118 A CN 201910701118A CN 110280647 B CN110280647 B CN 110280647B
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- Prior art keywords
- hole
- spinning
- copper pipe
- sleeve
- internal thread
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- 238000009987 spinning Methods 0.000 title claims abstract description 104
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 title claims abstract description 74
- 229910052802 copper Inorganic materials 0.000 title claims abstract description 74
- 239000010949 copper Substances 0.000 title claims abstract description 74
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 33
- 239000010959 steel Substances 0.000 claims abstract description 33
- 230000005540 biological transmission Effects 0.000 claims abstract description 4
- 239000000463 material Substances 0.000 claims description 7
- 238000005259 measurement Methods 0.000 abstract description 3
- 208000032826 Ring chromosome 3 syndrome Diseases 0.000 description 21
- 230000000694 effects Effects 0.000 description 4
- 210000004907 gland Anatomy 0.000 description 3
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 238000004260 weight control Methods 0.000 description 2
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 210000003781 tooth socket Anatomy 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D15/00—Corrugating tubes
- B21D15/04—Corrugating tubes transversely, e.g. helically
- B21D15/06—Corrugating tubes transversely, e.g. helically annularly
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D22/00—Shaping without cutting, by stamping, spinning, or deep-drawing
- B21D22/14—Spinning
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Gasket Seals (AREA)
Abstract
The invention provides a spinning device for an internal thread copper pipe, which comprises: the connecting sleeve is in transmission connection with the rotation driving device; the first end of the rotary sleeve is provided with a first central hole, the second end of the rotary sleeve is provided with a second central hole, and a step surface is formed at the junction of the first central hole and the second central hole; a spinning ring set; an annular first gasket; the support sleeve comprises a conical part and a cylindrical part which is coaxial with the conical part and fixedly connected with the conical part, and the conical part stretches into an inner hole of the spinning ring; the steel balls are arranged in a space surrounded by the inner side wall of the spinning ring, the end face of the second end of the first gasket and the conical surface of the conical part. The spinning ring is selected directly according to the measurement result, so that an operator can be guided to adjust the meter gram weight of the internal thread copper pipe, the adjustment time of the meter gram weight is effectively reduced, and the labor intensity of the operator is reduced; multiple spinning rings with different inner diameters can be arranged, and the inner diameter difference of adjacent spinning rings can be small, so that the meter gram weight of the internal thread copper pipe can be accurately adjusted.
Description
Technical Field
The invention relates to the technical field of processing of an internal thread copper pipe, in particular to a spinning device of the internal thread copper pipe.
Background
The internal thread copper pipe is also called a non-smooth pipe, and is an internal thread copper pipe with a smooth outer surface and a certain number of regular threads on an inner surface. When the spinning process is carried out on the internal thread copper pipe, an internal thread copper pipe spinning device is generally needed, as shown in fig. 1, the internal thread copper pipe spinning device in the prior art mainly comprises a connecting sleeve 1", a split spinning ring, a steel ball 2", a gland 3", a gasket 4" and a compression bolt 5", wherein the connecting sleeve 1" is connected with a rotation driving device and rotates along with the rotation driving device, the split spinning ring comprises two symmetrical ring bodies 6", an internal annular groove is arranged in the split spinning ring, the steel ball 2" is arranged in the internal annular groove, a gasket 4 "is arranged between the split spinning ring and the gland 3", and the gland 3 "is fixedly connected with the connecting sleeve 1" through the compression bolt 5 "and compresses the gasket 4".
When the meter gram weight of the internal thread copper pipe is adjusted, the existing internal thread copper pipe spinning device needs to change gaskets 4 ' with different thicknesses to adjust the distance between two ring bodies 6', so as to indirectly adjust the diameter of an inscribed circle formed by the steel balls 2', thereby achieving the purpose of adjusting the meter gram weight of the internal thread copper pipe. During actual production, operators need to replace gaskets with different thicknesses, test a section of internal thread copper pipe respectively and measure whether the internal thread copper pipe is qualified or not, multiple times of machine halt adjustment are needed for obtaining a product with qualified meter gram weight, the meter gram weight adjustment efficiency of the internal thread copper pipe is low, and multiple times of test production generate more adjustment waste. Therefore, how to solve the problem of difficulty in adjusting the mickey weight when processing the internal thread copper pipe in the prior art is a problem that needs to be solved by those skilled in the art.
Disclosure of Invention
The invention aims to solve the technical problem of providing the internal thread copper pipe spinning device which is convenient for adjusting the meter gram weight of the internal thread copper pipe when the internal thread copper pipe is processed.
In order to solve the above problems, the present invention provides an internal thread copper pipe spinning device, comprising: the connecting sleeve is in transmission connection with the rotation driving device, and a first through hole is formed in the center of the connecting sleeve; the end face of the first end of the rotary sleeve is provided with a first central hole, the end face of the second end of the rotary sleeve is provided with a second central hole, the first central hole and the second central hole are coaxially arranged and are mutually communicated, the diameter of the second central hole is larger than that of the first central hole so as to form a step surface at the junction of the first central hole and the second central hole, the rotary sleeve and the connecting sleeve are coaxially arranged, and the second end of the rotary sleeve and the first end of the connecting sleeve are detachably connected; the spinning ring set comprises a plurality of annular spinning rings with unequal inner diameters and equal outer diameters, any one of the spinning rings can be coaxially arranged in the second center hole, the first end of the spinning ring is propped against the step surface, and the second end of the spinning ring is propped against the connecting sleeve; the annular first gasket is coaxially arranged in the inner hole of the spinning ring, and the first end of the annular first gasket abuts against the step surface; the center of the supporting sleeve is provided with a second through hole, the supporting sleeve comprises a conical part and a cylindrical part which is coaxial with the conical part and fixedly connected with the conical part, the cylindrical part is coaxially connected with the connecting sleeve, the cross section of the conical part gradually increases along the direction from the rotary sleeve to the connecting sleeve, and the conical part stretches into an inner hole of the spinning ring; the steel balls are arranged in a space surrounded by the inner side wall of the spinning ring, the end face of the second end of the first gasket and the conical surface of the conical part and respectively abut against the inner side wall and the end face of the second end of the first gasket and the conical surface of the conical part, and the steel balls are distributed along the circumferential direction of the spinning ring.
Preferably, the bearing is further arranged on the end face of the first end of the connecting sleeve, the bearing mounting hole is coaxial with the first through hole, the bearing is mounted in the bearing mounting hole, and the cylindrical part is mounted in the inner ring of the bearing.
Preferably, the bearing is a thrust bearing.
Preferably, the cylindrical portion of the support sleeve is in clearance fit with the first through hole.
Preferably, the rotary sleeve further comprises a circular second gasket, the second gasket is coaxially arranged in the second central hole of the rotary sleeve, one end of the second gasket abuts against the end face of the second end of the rotary ring, and the other end of the second gasket abuts against the end face of the first end of the connecting sleeve.
Preferably, the rotary sleeve further comprises a third gasket, the third gasket comprises a first annular part and a second annular part which are coaxially arranged and fixedly connected with each other, the diameter of the first annular part is smaller than that of the second annular part, the first annular part is coaxially arranged in the second central hole of the rotary sleeve, the end face of the first annular part abuts against the rotary sleeve, and the end face of the second annular part abuts against the end face of the first end of the connecting sleeve.
Preferably, the connecting sleeve is connected with the rotary sleeve through a fastener, a first threaded hole in threaded fit with the fastener is formed in the end face of the first end of the connecting sleeve, a third through hole through which the fastener passes is formed in the position, corresponding to the first threaded hole, of the rotary sleeve, and the fastener passes through the third through hole and is matched with the first threaded hole.
Preferably, an external thread is arranged on the outer side wall of the second end of the swivel sleeve, a second threaded hole matched with the external thread is arranged on the end face of the first end of the connecting sleeve, and the external thread is screwed into the second threaded hole.
Preferably, the material of the supporting sleeve is hard alloy.
Preferably, the material of the first gasket is bearing steel.
Compared with the prior art, the technical scheme provided by the invention has the following technical effects: compared with the prior art, when the meter gram weight of the internal thread copper pipe is adjusted, the distance between the two ring bodies is adjusted by changing different gaskets, so that the size of the inscribed circle of the steel ball is indirectly adjusted, and the meter gram weight of the internal thread copper pipe is controlled by changing the size of the inscribed circle of the steel ball. According to the internal thread copper pipe spinning device provided by the invention, the spinning ring group is provided with the spinning rings with different inner diameters, and the spinning rings with proper inner diameters are directly selected, so that the internal thread copper pipe with the Mickey coincidence lattice can be processed by the size of an inscribed circle formed by a plurality of steel balls. By the arrangement, a proper spinning ring can be selected according to the measurement result of the thread core head, so that an operator is guided to adjust the meter gram weight of the internal thread copper pipe, the adjustment time of the meter gram weight is effectively reduced, the requirement on the technical level of the operator is reduced, and the labor intensity of the operator is reduced; the spinning rings with different inner diameters are in multiple grades, and the inner diameter difference of adjacent interval spinning rings can be small, so that the effect of accurately adjusting the meter gram weight of the internal thread copper pipe can be achieved.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic structural view of a prior art internal thread copper pipe spinning apparatus;
fig. 2 is a schematic structural view of a spinning apparatus for an internally threaded copper pipe according to an embodiment of the present invention.
In fig. 1-2: the rotary spinning device comprises a connecting sleeve-1, a rotary sleeve-2, a spinning ring-3, a first gasket-4, a supporting sleeve-5, steel balls-6, a second gasket-7, a third gasket-8, a first through hole-101, a first central hole-201, a second central hole-202, a conical part-501 and a cylindrical part-502.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be described in detail below. It will be apparent that the described embodiments are only some, but not all, embodiments of the invention. All other embodiments, based on the examples herein, which are within the scope of the invention as defined by the claims, will be within the scope of the invention as defined by the claims.
The embodiment provides the internal thread copper pipe spinning device which is convenient for adjusting the meter gram weight of the internal thread copper pipe when spinning the internal thread copper pipe.
Hereinafter, embodiments will be described in detail with reference to the accompanying drawings. Furthermore, the embodiments shown below do not limit the content of the invention described in the claims. The whole contents of the constitution shown in the following examples are not limited to the solution of the invention described in the claims.
As shown in fig. 2, the spinning device for the internal thread copper pipe comprises a connecting sleeve 1, a swivel sleeve 2, a spinning ring group, a first gasket 4, a supporting sleeve 5 and a plurality of steel balls 6. The connecting sleeve 1 can be in transmission connection with an output shaft of a rotation driving device, such as a high-speed motor, so as to drive the whole internal thread copper pipe spinning device to rotate, and a first through hole 101 for the internal thread copper pipe to pass through is formed in the center of the connecting sleeve 1. The end face of the first end of the swivel sleeve 2 is provided with a first central hole 201, the end face of the second end is provided with a second central hole 202, the first central hole 201 and the second central hole 202 are coaxially arranged, the diameter of the second central hole 202 is larger than that of the first central hole 201, a step surface is formed at the junction of the first central hole 201 and the second central hole 202, the second end of the swivel sleeve 2 is detachably connected with the first end of the connecting sleeve 1, the first end of the swivel sleeve 2 refers to the left end in fig. 2, and the second end refers to the right end in fig. 2. The spinning ring group comprises annular spinning rings 3 with unequal inner diameters and equal outer diameters, any spinning ring 3 can be coaxially installed in a second central hole 202 of the rotary sleeve 2, one end of the spinning ring 3 installed in the second central hole 202 is propped against a step surface in the rotary sleeve 2, and the other end is propped against an end surface of a first end of the connecting sleeve 1. The first gasket 4, the first gasket 4 is in the form of a ring, and is coaxially installed in the inner hole of the spinning ring 3, and the first end of the first gasket 4 abuts against the step surface in the swivel sleeve 2, and the first end of the first gasket 4 refers to the left end in fig. 2. The supporting sleeve 5 is provided at the center thereof with a second through hole through which the internally threaded copper pipe passes, as shown in fig. 2, the supporting sleeve 5 includes a tapered portion 501 and a cylindrical portion 502, the tapered portion 501 and the cylindrical portion 502 are coaxially provided and fixedly connected to each other, the cylindrical portion 502 is coaxially provided and connected to the connecting sleeve 1, the cross section of the tapered portion 501 is gradually increased in a direction along the swivel sleeve 2 to the connecting sleeve 1, and the tapered portion 501 extends into the spinning ring 3. A plurality of steel balls 6 disposed in a space surrounded by the inner sidewall of the spinning ring 3, the end surface of the second end of the first washer 4, and the conical surface of the conical portion 501, and being abutted against the inner sidewall of the spinning ring 3, the plurality of steel balls 6 being distributed along the circumferential direction of the inner bore of the spinning ring 3, wherein the first washer 4 is used for adjusting a gap between the steel balls 6 and the supporting sleeve 5, and preventing each steel ball 6 from sliding out from the first end of the spinning ring 3; the tapered portion 501 is used to support each steel ball 6 and make each steel ball 6 abut against the inner side wall of the spinning ring 3.
As shown in fig. 2, when spinning is performed, the copper pipe enters from the left end of the internal thread copper pipe spinning device, and is pulled out from the right end of the internal thread spinning device by a traction device (not shown), and meanwhile, the internal thread copper pipe spinning device is driven by a high-speed motor to rotate at a high speed. The spinning device is usually used together with a thread core, the thread core is arranged in an internal thread copper pipe, copper material is forced to be extruded into a tooth socket of the thread core through spinning of a steel ball 6 outside the copper pipe, the internal thread copper pipe is formed through continuous traction, and the thread core belongs to a commercially available product and is not focused on herein and is not repeated herein. According to the internal thread copper pipe spinning device, when the internal thread copper pipe spinning device is in actual use, copper pipes with different meter gram weights produced by combining the thread core head and the spinning rings 3 with different specifications can be drawn into a meter gram weight control comparison table, and when the meter gram weight of the internal thread copper pipe is adjusted, the internal thread copper pipe is processed by measuring the outer diameter of the thread core head and selecting the corresponding spinning ring 3 by comparing with the meter gram weight control comparison table so as to control the meter gram weight of the internal thread copper pipe. The spinning ring 3 is arranged in such a way, and the proper spinning ring 3 is directly selected according to the measurement result, so that the problem that the meter gram weight of the internal thread copper pipe can be adjusted only by replacing the gasket for many times in the prior art is solved, the meter gram weight of the internal thread copper pipe is convenient to adjust, an operator can be guided to adjust the meter gram weight of the internal thread copper pipe, the requirement on the operation level of the operator is reduced, the adjustment time of the meter gram weight of the internal thread copper pipe is effectively reduced, and the labor intensity of the operator is reduced; in actual use, the spinning rings 3 with different inner diameters can be arranged, and the inner diameter difference of the adjacent spinning rings 3 can be small, so as to achieve the effect of accurately adjusting the meter gram weight of the internal thread copper pipe.
As shown in fig. 2, in some embodiments, the internal thread copper pipe spinning device further includes a bearing, and a bearing mounting hole coaxially disposed with the first through hole 101 is provided on an end surface of the first end of the connecting sleeve 1, the bearing is mounted in the bearing mounting hole, and the cylindrical portion 502 is mounted in an inner ring of the bearing. The internal thread copper pipe spinning device drives the steel ball 6 to rotate when rotating, and generally, the faster the steel ball 6 rotates, the better the spinning effect on the internal thread copper pipe. By providing the bearing, the supporting sleeve 5 can also rotate along with the rotation of the steel ball 6, so that the friction force of the conical part 501 on the steel ball 6 can be effectively reduced, and the rotation speed of the steel ball 6 can be improved. In some embodiments, as shown in fig. 2, the bearing is a thrust bearing. In the spinning process of the internal thread copper pipe, the internal thread copper pipe needs to be continuously pulled by a traction device, in the pulling process, the copper pipe can generate rightward axial acting force on the steel ball 6, and the steel ball 6 acts on the supporting sleeve 5, so that the supporting sleeve 5 can receive larger axial force, and the thrust bearing can effectively bear the axial force received by the supporting sleeve 5. Of course, in other embodiments, the supporting sleeve 5 may also be connected with the first through hole 101 of the connecting sleeve 1 in a clearance fit manner.
As shown in fig. 2, in some embodiments, the internal thread copper pipe spinning device further includes an annular second gasket 7, where the second gasket 7 is coaxially installed in the second central hole 202 of the swivel sleeve 2, and one end of the second gasket 7 abuts against the end face of the second end of the spinning ring 3, and the other end abuts against the end face of the first end of the connecting sleeve 1. When the width of the spinning ring 3 is larger than the depth of the second central hole 202 of the swivel sleeve 2, the spinning ring 3 can be pressed onto the end face of the first end of the connecting sleeve 1 through the step surface of the swivel sleeve 2; and as shown in fig. 2, when the width of the spinning ring 3 is smaller than the depth of the second center hole 202 of the swivel case 2, the gap between the spinning ring 3 and the end face of the first end of the connecting sleeve 1 can be adjusted by the second gasket 7 to press the spinning ring 3.
As shown in fig. 2, in some embodiments, the internal thread copper pipe spinning device further includes a third gasket 8, which includes a first ring portion and a second ring portion that are coaxially disposed and fixedly connected to each other, where the diameter of the first ring portion is smaller than that of the second ring portion, and the first ring portion is coaxially mounted in the second central hole 202 of the swivel sleeve 2, and the end surface of the first ring portion abuts against the spinning ring 3, and the end surface of the second ring portion abuts against the end surface of the first end of the connecting sleeve 1. Through setting up third gasket 8, be convenient for with the gyration cover 2 and set up the part in the gyration cover 2, whole dismantlement such as spin ring 3 and steel ball 6, the whole of the part of being convenient for gyration cover 2 and setting up in gyration cover 2 is installed and removed more.
As shown in fig. 2, in some embodiments, the connecting sleeve 1 is connected with the swivel sleeve 2 through a fastener, a first threaded hole in threaded fit with the fastener is formed on the end surface of the first end of the connecting sleeve 1, a third through hole through which the fastener passes is formed at a position corresponding to the first threaded hole of the swivel sleeve 2, and the fastener passes through the third through hole to be matched with the first threaded hole. The fastener may be a bolt or a screw. The connection between the connecting sleeve 1 and the swivel sleeve 2 is firm and reliable. Of course, in other embodiments, the connecting sleeve 1 may be connected to the swivel sleeve 2 by other means, for example, an external thread is provided on an outer sidewall of the second end of the swivel sleeve 2, and a second threaded hole matched with the external thread is provided on an end surface of the first end of the connecting sleeve 1, and the external thread is screwed into the second threaded hole, so that the swivel sleeve 2 and the connecting sleeve 1 are in threaded connection. By means of the arrangement, the connecting sleeve 1 and the rotary sleeve 2 are directly connected with each other in a threaded mode, fastening pieces are not needed to be connected, the wall thickness of the connecting sleeve 1 and the wall thickness of the rotary sleeve 2 are not needed to be increased for the fastening pieces to pass through, and the size and the weight of the connecting sleeve 1 and the rotary sleeve 2 can be reduced.
In some embodiments, the material of the support sleeve 5 is cemented carbide. As can be seen from the above analysis, the steel ball 6 has a large force on the tapered portion 501 of the support sleeve 5, and the support sleeve 5 is made of cemented carbide, so that the tapered portion 501 of the support sleeve 5 can be prevented from being scratched, and the service life of the support sleeve 5 can be effectively prolonged.
In some embodiments, the material of the first shim 4 is bearing steel. So set up, first gasket 4 hardness and wearability are all higher, can effectively prolong the life of first gasket 4. Specifically, the bearing steel may be of the designation Cr15.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. An internally threaded copper pipe spinning device, comprising:
the connecting sleeve (1) is in transmission connection with the rotation driving device, and a first through hole (101) is formed in the center of the connecting sleeve (1);
the rotary sleeve (2) is provided with a first central hole (201) on the end face of the first end and a second central hole (202) on the end face of the second end, the first central hole (201) and the second central hole (202) are coaxially arranged and are mutually communicated, the diameter of the second central hole (202) is larger than that of the first central hole (201) so as to form a step surface at the junction of the first central hole and the second central hole, the rotary sleeve (2) and the connecting sleeve (1) are coaxially arranged, and the second end of the rotary sleeve (2) and the first end of the connecting sleeve (1) are detachably connected;
The spinning ring set comprises a plurality of annular spinning rings (3) with unequal inner diameters and equal outer diameters, any spinning ring (3) can be coaxially arranged in the second center hole (202), the first end of the spinning ring is propped against the step surface, and the second end of the spinning ring is propped against the connecting sleeve (1);
a circular ring-shaped first gasket (4) coaxially installed in the inner hole of the spinning ring (3) and having a first end abutting against the step surface;
The support sleeve (5) is provided with a second through hole at the center, the support sleeve (5) comprises a conical part (501) and a cylindrical part (502) which is coaxial with the conical part (501) and fixedly connected with the conical part (501), the cylindrical part (502) is coaxially connected with the connecting sleeve (1), the cross section of the conical part (501) gradually increases along the direction from the rotary sleeve (2) to the connecting sleeve (1), and the conical part (501) extends into the inner hole of the spinning ring (3);
The steel balls (6) are arranged in a space surrounded by the inner side wall of the spinning ring (3), the end face of the second end of the first gasket (4) and the conical surface of the conical part (501) and respectively offset with the inner side wall, the end face and the conical surface, and the steel balls (6) are distributed along the circumferential direction of the spinning ring (3).
2. The internal thread copper pipe spinning device according to claim 1, further comprising a bearing, wherein a bearing mounting hole coaxial with the first through hole (101) is provided on an end surface of the first end of the connecting sleeve (1), the bearing is mounted in the bearing mounting hole, and the cylindrical portion (502) is mounted in an inner ring of the bearing.
3. The internally threaded copper pipe spinning apparatus of claim 2, wherein the bearing is a thrust bearing.
4. An internally threaded copper pipe spinning apparatus according to claim 1, characterized in that the cylindrical portion (502) of the support sleeve (5) is in clearance fit with the first through hole (101).
5. The internal thread copper pipe spinning device according to claim 1, further comprising a circular ring-shaped second gasket (7), wherein the second gasket (7) is coaxially installed in the second central hole (202) of the swivel sleeve (2), one end of the second gasket (7) abuts against an end face of the second end of the spinning ring (3), and the other end abuts against an end face of the first end of the connecting sleeve (1).
6. The internal thread copper pipe spinning device according to claim 1, further comprising a third gasket (8) comprising a first annular part and a second annular part which are coaxially arranged and fixedly connected with each other, wherein the diameter of the first annular part is smaller than that of the second annular part, the first annular part is coaxially arranged in the second central hole (202) of the swivel sleeve (2), the end face of the first annular part is propped against the spinning ring (3), and the end face of the second annular part is propped against the end face of the first end of the connecting sleeve (1).
7. The internal thread copper pipe spinning device according to claim 1, wherein the connecting sleeve (1) is connected with the rotary sleeve (2) through a fastener, a first threaded hole in threaded fit with the fastener is formed in the end face of the first end of the connecting sleeve (1), a third through hole through which the fastener passes is formed in a position, corresponding to the first threaded hole, of the rotary sleeve (2), and the fastener passes through the third through hole to be matched with the first threaded hole.
8. The internal thread copper pipe spinning device according to claim 1, wherein an external thread is arranged on the outer side wall of the second end of the swivel sleeve (2), a second threaded hole matched with the external thread is arranged on the end face of the first end of the connecting sleeve (1), and the external thread is screwed into the second threaded hole.
9. An internally threaded copper pipe spinning device according to claim 1, characterized in that the material of the support sleeve (5) is cemented carbide.
10. An internally threaded copper pipe spinning apparatus according to claim 1, characterized in that the material of the first gasket (4) is bearing steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910701118.XA CN110280647B (en) | 2019-07-31 | 2019-07-31 | Spinning device for internal thread copper pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910701118.XA CN110280647B (en) | 2019-07-31 | 2019-07-31 | Spinning device for internal thread copper pipe |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110280647A CN110280647A (en) | 2019-09-27 |
| CN110280647B true CN110280647B (en) | 2024-04-26 |
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|---|---|---|---|
| CN201910701118.XA Active CN110280647B (en) | 2019-07-31 | 2019-07-31 | Spinning device for internal thread copper pipe |
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| CN113182414A (en) * | 2021-05-10 | 2021-07-30 | 哈尔滨韦玛通信工程有限公司 | Continuous spinning bonding combination equipment for copper-clad steel grounding rod |
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| CN210333914U (en) * | 2019-07-31 | 2020-04-17 | 曹县爱伦金属加工有限公司 | Internal thread copper pipe spinning device |
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