CN115958127B - Pipe thread machining assembly and assembling method thereof - Google Patents
Pipe thread machining assembly and assembling method thereofInfo
- Publication number
- CN115958127B CN115958127B CN202211060215.3A CN202211060215A CN115958127B CN 115958127 B CN115958127 B CN 115958127B CN 202211060215 A CN202211060215 A CN 202211060215A CN 115958127 B CN115958127 B CN 115958127B
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- thread
- rolling
- rolling wheel
- thread rolling
- sleeve
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
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Abstract
The invention provides a pipe thread machining assembly which comprises a plurality of rolling wheels, a plurality of thread rolling wheels and a plurality of thread rolling bearings, wherein the rolling wheels comprise a rolling wheel body, a rolling shaft sleeve and a rolling bearing, the rolling wheel body is of an approximately round platform-shaped structure, the rolling shaft sleeve is installed in one end of the lower bottom surface of the rolling wheel body, the rolling bearing is installed in one end of the upper bottom surface of the rolling wheel body, the thread rolling wheels comprise a thread rolling wheel body, a thread rolling shaft sleeve and a thread rolling bearing, the thread rolling wheel body is of an approximately round platform-shaped structure, the thread rolling shaft sleeve is installed in one end of the upper bottom surface of the thread rolling wheel body, and the thread rolling bearing is installed in one end of the lower bottom surface of the thread rolling wheel body. The pipe thread machining assembly disclosed by the invention can be used for reducing the abrasion and the occlusion of the surfaces of the rolling wheel and the thread rolling wheel to cause the damage of the rolling wheel and the thread rolling wheel.
Description
Technical Field
The invention relates to the technical field of pipe thread machining, in particular to a pipe thread machining assembly and an assembling method of the machining assembly.
Background
Compared with the external thread of the cutting pipe, the external thread of the rolling wheel has the remarkable advantages of stable quality, good sealing performance, high mechanical connection strength and the like. In the forming process of the external thread of the pipe, the pipe needs to be subjected to two production procedures, the first production procedure is to perform taper forming treatment on the pipe through a rolling structure, and the second production procedure is to perform thread rolling forming treatment on a taper forming part through a thread rolling structure. In the working procedure time periods of different cold forming working procedures, namely in the taper forming and thread rolling forming processes, the pressure born by the rolling wheel and the thread rolling wheel can be gradually changed, the pressure change gradient is different, and excessive abrasion of the matching surfaces of the rolling wheel and/or the thread rolling wheel and the pipe can be caused by the matching of the single rolling wheel and/or the thread rolling wheel and the shaft of the rolling wheel and the thread rolling wheel, so that the phenomenon that the rolling wheel and/or the thread rolling wheel and the pipe cannot rotate possibly occurs.
Disclosure of Invention
In view of the above-mentioned drawbacks of the prior art, an object of the present invention is to provide a threaded pipe machining assembly and an assembling method thereof, which can reduce wear and damage to the rolling wheel and the thread rolling wheel caused by engagement of the rolling wheel and the thread rolling wheel, so as to improve the service lives of the rolling wheel and the thread rolling wheel.
To achieve the above and other related objects, the present invention provides a pipe thread forming assembly comprising:
The rolling wheels comprise rolling wheel bodies, rolling shaft sleeves and rolling bearings, wherein the rolling wheel bodies are of approximately round table-shaped structures, the rolling shaft sleeves are arranged in one end of the lower bottom surface of the rolling wheel bodies, the rolling bearings are arranged in one end of the upper bottom surface of the rolling wheel bodies, and the rolling bearings are arranged on the other end of the upper bottom surface of the rolling wheel bodies
The thread rolling wheels comprise thread rolling wheel bodies, thread rolling shaft sleeves and thread rolling bearings, the thread rolling wheel bodies are of approximately round table-shaped structures, the thread rolling shaft sleeves are installed in one end of the upper bottom surface of the thread rolling wheel bodies, and the thread rolling bearings are installed in one end of the lower bottom surface of the thread rolling wheel bodies.
In an embodiment of the present invention, a plurality of lubrication grooves are formed on an inner wall surface of the rolling shaft sleeve, and a plurality of lubrication grooves are formed on an inner wall surface of the thread rolling shaft sleeve.
In one embodiment of the present invention, the processing assembly further comprises:
Rolling wheel seat, and
The rolling wheel is arranged on the rolling wheel seat, and the rolling wheel is rotationally arranged on the rolling wheel seat.
In an embodiment of the present invention, the rolling wheel body is in interference fit with the rolling shaft sleeve, the rolling shaft sleeve is in clearance fit with the rolling shaft sleeve, the rolling wheel body is in interference fit with the outer ring of the rolling bearing, and the inner ring of the rolling bearing is in interference fit with the rolling shaft sleeve.
In an embodiment of the present invention, an axial installation gap between the rolling shaft sleeve and the rolling shaft is in a range of 0.1-0.5 mm.
In one embodiment of the present invention, the processing assembly further comprises:
thread rolling wheel seat
The thread rolling wheel shafts are arranged on the thread rolling wheel seat, and the thread rolling wheels are arranged on the thread rolling wheel shafts in a rotating mode.
In an embodiment of the present invention, the thread rolling wheel body is in interference fit with the thread rolling shaft sleeve, the thread rolling shaft sleeve is in clearance fit with the thread rolling shaft sleeve, the thread rolling wheel body is in interference fit with the thread rolling bearing, and the inner ring of the thread rolling bearing is in interference fit with the thread rolling shaft sleeve.
In an embodiment of the present invention, an axial installation gap between the thread rolling shaft sleeve and the thread rolling shaft is in a range of 0.1-0.5 mm.
In an embodiment of the invention, the rolling shaft sleeve is a copper sleeve, the rolling bearing is a basket needle bearing, the rolling thread shaft sleeve is a copper sleeve, and the rolling thread bearing is a basket needle bearing.
The invention also provides an assembling method of the processing assembly, which is applied to the pipe thread processing assembly and comprises the following steps:
The rolling bearing is arranged at one end of the upper bottom surface of the rolling wheel body;
the rolling shaft sleeve is arranged at one end of the lower bottom surface of the rolling wheel body;
mounting the thread rolling bearing at one end of the lower bottom surface of the thread rolling wheel body, and
And installing the thread rolling shaft sleeve at one end of the upper bottom surface of the thread rolling wheel body.
As described above, the invention provides a pipe thread machining assembly, in the pipe machining process, most of the pressure is borne by the rolling shaft sleeve and the thread rolling shaft sleeve, and the rolling bearing and the thread rolling bearing play a role in slowing down wear, so that the structures of the rolling wheel and the thread rolling wheel can be protected, and the service lives of the rolling wheel and the thread rolling wheel can be prolonged.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed for the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present 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 view showing a structure of a rolling structure in a pipe thread forming assembly according to the present invention.
Fig. 2 is a schematic view showing the structure of a rolling wheel in a pipe thread processing assembly according to the present invention.
Fig. 3 is an exploded view of a rolling wheel in a tube thread forming assembly according to the present invention.
Fig. 4 is a schematic view showing a thread rolling structure in a pipe thread forming assembly according to the present invention.
Fig. 5 shows an exploded view of a thread rolling structure in a pipe thread forming assembly according to the present invention.
Fig. 6 is a schematic view showing the structure of a thread rolling wheel in a pipe thread processing assembly according to the present invention.
Fig. 7 shows an exploded view of a thread roller in a pipe thread forming assembly according to the present invention.
FIG. 8 is a schematic view of the force applied to a roller in a tube thread forming assembly according to the present invention.
Fig. 9 is a force diagram of a thread rolling wheel in a pipe thread forming assembly according to the present invention.
Fig. 10 is a flow chart of a method of assembling a tooling assembly according to the present invention.
Description of element numbers:
10. the rolling structure, 11, the rolling wheel seat, 12, the rolling wheel, 121, the rolling wheel body, 122, the rolling shaft sleeve, 123, the rolling bearing;
20. The thread rolling mechanism comprises a thread rolling structure, a thread rolling wheel seat, a thread rolling wheel, a 221 thread rolling wheel body, a 222 thread rolling shaft sleeve, a 223 thread rolling bearing;
30. And (5) a pipe.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1 and 4, the present invention provides a pipe thread machining assembly, which can machine a pipe 30 so as to form a pipe external thread on the surface of the pipe 30. The tubing 30 may be a hollow blank that is cold formed. The pipe 30 may include not only a metal pipe such as a steel pipe, an aluminum pipe, a copper pipe, or the like, but also a metal work having a hollow tubular portion structure such as a pipe joint, a tee, or the like, and may include other plastic pipes or works having a similar shape and being cold-formed. The tooling assembly may include a roll structure 10 and a thread rolling structure 20. In the process of processing the external thread of the pipe 30, the taper forming process can be performed on one end of the pipe 30 through the rolling structure 10, so that the external taper forming portion can be formed on one end of the pipe 30, and then the thread rolling forming process can be performed on the taper forming portion through the thread rolling structure 20, so that the external thread of the pipe can be formed on the taper portion. The external thread of the pipe can be the external thread of the pipe with the actual use function or the existing national standard or international standard or enterprise standard.
Referring to fig. 1, in one embodiment of the present invention, a rolling structure 10 may include a rolling wheel seat 11 and a rolling wheel 12. The rolling wheel seat 11 can be arranged on the machine seat main body, a rolling wheel shaft can be arranged on the rolling wheel seat 11, and the rolling wheel 12 can be rotatably arranged on the rolling wheel shaft. The number of the roller shafts may be plural, for example, three, four, five, six, or the like. A plurality of roller shafts may be provided on the roller housing 11. A plurality of roller shafts may be disposed on the roller housing 11 at equal angular intervals along the ring shape, and the plurality of roller shafts may be located on the same circular side. For example, when the number of roller shafts is three, three roller shafts may form a regular triangle, and the roller shafts may be located at the end points of the regular triangle. For another example, when the number of roller shafts is four, four roller shafts may form a square, and the roller shafts may be located at the end points of the square. That is, when the number of the roll shafts is plural, the plural roll shafts may form a shape of a regular polygon, and the roll shafts may be located at the end points of the regular polygon. The number of the rolling wheels 12 can be the same as the number of the rolling wheel shafts, namely, each rolling wheel shaft is rotatably provided with one rolling wheel 12. However, the number of the rolling wheels 12 may be smaller than the number of the rolling wheel shafts. The rolling wheels 12 may form a regular polygon shape, and the axes of the rolling wheels 12 may be located on the same edge of the circle.
Referring to fig. 2 and 3, in one embodiment of the present invention, the rolling wheel 12 may include a rolling wheel body 121, a rolling sleeve 122, and a rolling bearing 123. The roller body 121 may have a truncated cone structure, and a circular opening is formed in a central portion of the roller body 121, and the roller body 121 may be rotatably disposed on a roller shaft through the circular opening. The rolling sleeve 122 may be a copper sleeve, and may be made of copper alloy material such as beryllium copper, which has advantages of high strength, elasticity, hardness, wear resistance, fatigue resistance, heat resistance, etc. The rolling sleeve 122 may be mounted in a circular opening in the roller body 121, and an H7/N6 interference fit may be used therebetween. The rolling shaft sleeve 122 and the rolling shaft can be in clearance fit, and the axial installation clearance between the rolling shaft sleeve 122 and the rolling shaft can be in the range of 0.1-0.5 mm, for example, 0.1mm, for example, 0.25mm, for example, and also 0.5mm. The roller bearings 123 may also be mounted within the circular opening of the roller body 121. The rolling bearing 123 may be a basket needle bearing, which has advantages of silence, high speed, durability, etc. An interference fit may be adopted between the outer ring of the rolling bearing 123 and the rolling wheel body 121, and an interference fit may also be adopted between the inner ring of the rolling bearing 123 and the rolling wheel shaft. The roller sleeve 122 may be positioned at one end of the lower bottom surface of the roller body 121, and the roller bearing 123 may be positioned at one end of the upper bottom surface of the roller body 121. However, the rolling bearing 123 may be positioned at one end of the lower bottom surface of the rolling wheel body 121, and the rolling shaft sleeve 122 may be positioned at one end of the upper bottom surface of the rolling wheel body 121. Wherein the rolling sleeve 122 may be a sleeve and the rolling bearing 123 may be a component that fixes and reduces the coefficient of friction of the load during mechanical transmission. The roller sleeve 122 is identical to the roller bearing 123 in that both are subjected to the load of the roller shaft. The difference between the rolling bearing sleeve 122 and the rolling bearing 123 is that the rolling bearing sleeve 122 is of an integral structure, the rolling wheel shaft and the rolling bearing sleeve 122 relatively move during rotation, the rolling bearing 123 is of a split structure, and the inner ring and the outer ring of the rolling bearing 123 relatively move during rotation.
Referring to fig. 2 and 3, in an embodiment of the present invention, when the rolling sleeve 122 acts between the rolling wheel body 121 and the rolling wheel shaft, the rolling sleeve 122 may act as a fixing, positioning, sliding bearing, etc. for fixing the center of the rolling wheel shaft and preventing the rolling bearing 123 from being displaced due to vibration during operation. The wall thickness of the roller sleeve 122 may be designed to save material, depending on the axial load required by the roller bearing 123. The rolling sleeve 122 may be cast copper or bearing alloy. The rolling sleeve 122 may be divided into an open configuration and a non-open configuration. When the rolling sleeve 122 is not capable of bearing axial loads, or is capable of bearing relatively small axial loads or thrust bearings, the rolling sleeve 122 may be of cylindrical configuration. The rolling shaft sleeve 122 can be used for replacing rolling bearings at some places with lower rotating speed, higher radial load and higher clearance requirement, the material of the rolling shaft sleeve 122 is required to have low hardness and wear resistance, and the inner hole of the rolling shaft sleeve 122 can achieve higher matching precision through grinding and scraping. An oil groove for lubricating oil may be provided on the inner wall of the rolling sleeve 122 to lubricate the rolling sleeve 122. For example, during installation of the roller sleeve 122, the inner bore wall of the roller sleeve 122 may be shaved, such that a plurality of lubrication grooves may be formed in the inner surface of the roller sleeve 122 to enhance lubrication. The shape of the lubrication groove may be, for example, a figure-8 shape, a rectangular shape, or a circular shape, without limitation.
Referring to fig. 4 and 5, in one embodiment of the present invention, the thread rolling structure 20 may include a thread rolling wheel seat 21 and a thread rolling wheel 22. The thread rolling wheel seat 21 can be arranged on the machine seat main body, a thread rolling wheel shaft can be arranged on the thread rolling wheel seat 21, and the thread rolling wheel 22 can be rotatably arranged on the thread rolling wheel shaft. The number of the roller shafts may be plural, for example, three, four, five, six, or the like. A plurality of thread roller shafts may be provided on the thread roller seat 21. A plurality of roller shafts may be provided on the roller housing 21 at equal angular intervals in a ring shape, and the plurality of roller shafts may be located on the same circular side. For example, when the number of roller shafts is three, the three roller shafts may form a regular triangle, and the roller shafts may be located at the ends of the regular triangle. For another example, when the number of roller shafts is four, the four roller shafts may form a square, and the roller shafts may be located at the ends of the square. That is, when the number of the thread rolling shafts is plural, the plural thread rolling shafts may form a shape of a regular polygon, and the thread rolling shafts may be located at the end points of the regular polygon. The number of the thread rolling wheels 22 may be the same as the number of the thread rolling wheel shafts, i.e. one thread rolling wheel 22 is rotatably provided on each thread rolling wheel shaft. However, the number of the thread rolling wheels 22 may be less than the number of the thread rolling shafts. The plurality of thread rolling wheels 22 may form a regular polygon shape, and the axes of the plurality of thread rolling wheels 22 may be located on the same circular side.
Referring to fig. 6 and 7, in one embodiment of the present invention, the thread rolling wheel 22 may include a thread rolling wheel body 221, a thread rolling bushing 222, and a thread rolling bearing 223. The thread rolling wheel body 221 may have a truncated cone structure, and a circular opening is formed in a central portion of the thread rolling wheel body 221 and is rotatably disposed on the thread rolling wheel shaft through the circular opening. The thread rolling sleeve 222 may be a copper sleeve, and may be made of copper alloy material such as beryllium copper, which has advantages of high strength, elasticity, hardness, wear resistance, fatigue resistance, heat resistance, etc. The thread rolling sleeve 222 may be mounted within a circular opening of the thread rolling wheel body 221, and an interference fit of H7/N6 may be employed therebetween. The thread rolling shaft sleeve 222 and the thread rolling shaft can be in clearance fit, and the axial installation clearance between the thread rolling shaft sleeve 222 and the thread rolling shaft can be in the range of 0.1-0.5 mm, can be 0.1mm, can be 0.25mm, can be 0.5mm, and can be 0.5mm. Thread rolling bearing 223 may also be mounted within a circular opening of thread rolling wheel body 221. The rolling bearing 123 may be a basket needle bearing, which has advantages of silence, high speed, durability, etc. An interference fit may be adopted between the outer ring of the rolling bearing 123 and the rolling wheel body 121, and an interference fit may also be adopted between the inner ring of the rolling bearing 123 and the roller shaft. The thread rolling bushing 222 may be located at one end of the lower bottom surface of the thread rolling wheel body 221, and the thread rolling bearing 223 may be located at one end of the upper bottom surface of the thread rolling wheel body 221. However, not limited thereto, the thread rolling bushing 222 may be located at one end of the upper bottom surface of the thread rolling wheel body 221, and the thread rolling bearing 223 may be located at one end of the lower bottom surface of the thread rolling wheel body 221. The thread rolling sleeve 222 may be a sleeve, and the thread rolling bearing 223 may be a component for fixing and reducing the friction coefficient of load during mechanical transmission. The thread rolling sleeve 222 is identical to the thread rolling bearing 223 in that both bear the load of the thread rolling shaft. The thread rolling bearing 223 is different from the thread rolling bearing 223 in that the thread rolling bearing 222 is of an integral structure, the thread rolling shaft and the thread rolling bearing 222 relatively move during rotation, the thread rolling bearing 223 is of a split structure, and the inner ring and the outer ring of the thread rolling bearing 223 relatively move during rotation.
Referring to fig. 6 and 7, in one embodiment of the present invention, when the thread rolling sleeve 222 acts between the thread rolling wheel body 221 and the thread rolling shaft, the thread rolling sleeve 222 may act as a fixing, positioning, sliding bearing, etc. for fixing the center position of the thread rolling shaft and the thread rolling bearing 223 from being displaced due to vibration during operation. To save material, the wall thickness of the thread rolling sleeve 222 may be designed according to the axial load required by the thread rolling bearing 223. The thread rolling sleeve 222 may be cast copper or bearing alloy. The thread rolling sleeve 222 may be divided into an open structure and a non-open structure. The thread rolling sleeve 222 may be of cylindrical configuration when the thread rolling sleeve 222 is not capable of withstanding axial loads, or is capable of withstanding only small axial loads or thrust bearings. The thread rolling shaft sleeve 222 can be used for replacing a rolling bearing at a place with lower rotating speed, higher radial load and higher clearance requirement, the material of the thread rolling shaft sleeve 222 is required to have low hardness and wear resistance, and the inner hole of the thread rolling shaft sleeve 222 can achieve higher matching precision through grinding and scraping. An oil groove for lubricating oil may be provided on the inner wall of the thread rolling shaft sleeve 222 to lubricate the thread rolling shaft sleeve 222. For example, during installation of the thread rolling bushing 222, the inner bore wall of the thread rolling bushing 222 may be shaved, which may leave a plurality of lubrication grooves in the inner surface of the thread rolling bushing 222 to enhance lubrication. The shape of the lubrication groove may be, for example, a figure-8 shape, a rectangular shape, or a circular shape, without limitation.
Referring to fig. 8 and 9, in an embodiment of the present invention, in the process of forming the outer taper forming portion at one end of the pipe 30, since the force borne by the roller body 121 is gradually increased and the force borne by one side of the lower bottom surface of the roller body 121 is greatest, it is necessary to locate the roller sleeve 122 capable of bearing a higher pressure on one side of the lower bottom surface of the roller body 121 and locate the roller bearing 123 on one side of the upper bottom surface of the roller body 121, and at this time, most of the force borne by the roller body 121 can be transferred to the roller sleeve 122. In the process of performing thread rolling forming on the taper forming portion of the pipe 30, when the thread rolling wheel body 221 contacts with the pipe 30, the pipe 30 performs thread alignment with thread rolling wheel threads on the thread rolling wheel body 221, and at this time, one side of the upper bottom surface of the thread rolling wheel body 221 is stressed most, so that the thread rolling shaft sleeve 222 capable of bearing higher pressure needs to be arranged on one side of the upper bottom surface of the thread rolling wheel body 221, the thread rolling bearing 223 is arranged on one side of the lower bottom surface of the thread rolling wheel body 221, and at this time, most of acting force borne by the thread rolling wheel body 221 can be transferred to the thread rolling shaft sleeve 222.
Referring to fig. 8 and 9, in an embodiment of the present invention, during taper forming, the tube 30 starts to contact the rolling wheel 12, and as the rolling time is prolonged, the tube 30 is axially fed step by step, and the contact area between the tube 30 and the rolling wheel 12 is gradually increased until the tube is completely fitted, so as to finish taper forming. In the thread rolling forming process, the pipe 30 starts to contact the thread rolling wheel 22, the pipe 30 is axially fed gradually along with the extension of the thread rolling time, and the contact area between the pipe 30 and the thread rolling wheel 22 is gradually increased until the pipe is completely attached, so that the thread rolling forming is completed. The processing can be performed by rolling along the axial-radial mixed direction or rolling along the axial-radial mixed direction. By "roll-forming in an axially-radially mixed direction" or "axially-radially mixed roll-forming" is meant that during taper forming and thread-forming, the relative movement of the roll and tube 12 and/or the roll and tube 22, including simultaneous axial and radial movements, is such that the roll and tube 12 and/or the roll and tube 22 are axially moved by axial force components generated by the helical angle of the roll and tube 12 and/or the roll and tube 22 or by the deflection angle of the axis of the roll and tube 12 and/or the roll and tube 22 in the perpendicular direction to the axis of the tube 30 as the roll and tube 12 and/or the roll and tube 22 are rotated in engagement with the tube 30, while the roll and tube 22 are radially fed as required by a process to complete the taper forming and/or thread-forming process. When the relative movement speed in the radial direction is zero, namely "rolling in the axial direction" or "axial rolling", axial rolling is a special case of axial-radial hybrid rolling.
In summary, according to the pipe thread machining assembly provided by the invention, most of pressure is borne by the rolling shaft sleeve and the thread rolling shaft sleeve in the pipe machining process, the rolling bearing and the thread rolling bearing play a role in reducing abrasion and damage to the rolling wheel and the thread rolling wheel caused by occlusion, so that the structures of the rolling wheel and the thread rolling wheel can be protected, and the service lives of the rolling wheel and the thread rolling wheel can be prolonged.
Referring to fig. 10, the present invention further provides an assembling method of a processing assembly, which can assemble the processing assembly, and the assembling method can include the following steps:
step S10, a rolling bearing 123 is arranged at one end of the upper bottom surface of the rolling wheel body 121, and the outer ring of the rolling bearing 123 is in interference fit with the rolling wheel body 121;
Step S20, scraping the inner hole wall of the rolling shaft sleeve 122 to generate a plurality of lubrication grooves;
step S30, a rolling shaft sleeve 122 is arranged at one end of the lower bottom surface of the rolling wheel body 121 in a stamping mode, and the rolling shaft sleeve 122 and the rolling wheel body 121 are in interference fit of H7/N6;
step S40, lubricating oil is smeared on the inner hole wall of the rolling shaft sleeve 122 and the rolling bearing 123;
step S50, mounting the rolling shaft sleeve 122 and the rolling bearing 123 on a rolling wheel shaft of the rolling wheel seat 11 so that the rolling wheel body 121 can rotate on the rolling wheel shaft, and performing clearance fit between the rolling shaft sleeve 122 and the rolling wheel shaft;
Step S60, installing a thread rolling bearing 223 at one end of the lower bottom surface of the thread rolling wheel body 221, wherein an outer ring of the thread rolling bearing 223 is in interference fit with the thread rolling wheel body 221;
step S70, scraping the inner hole wall of the thread rolling shaft sleeve 222 to generate a plurality of lubrication grooves;
Step S80, installing a thread rolling shaft sleeve 222 at one end of the upper bottom surface of the thread rolling wheel body 221 in a punching mode, wherein the thread rolling shaft sleeve 222 and the thread rolling wheel body 221 are in interference fit of H7/N6;
Step S90, lubricating oil is smeared on the inner hole wall of the thread rolling shaft sleeve 222 and the thread rolling bearing 223;
In step S100, the thread rolling shaft sleeve 222 and the thread rolling bearing 223 are mounted on the thread rolling shaft of the thread rolling wheel seat 21, so that the thread rolling wheel body 221 can rotate on the thread rolling shaft, and the thread rolling shaft sleeve 222 and the thread rolling shaft are in clearance fit.
In summary, according to the assembling method of the processing assembly provided by the invention, most of pressure is borne by the rolling shaft sleeve and the thread rolling shaft sleeve in the pipe processing process, and the rolling bearing and the thread rolling bearing play a role in slowing down abrasion, so that the structures of the rolling wheel and the thread rolling wheel can be protected, and the service lives of the rolling wheel and the thread rolling wheel can be prolonged.
In the description of the present specification, the descriptions of the terms "present embodiment," "example," "specific example," and the like, mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The embodiments of the invention disclosed above are intended only to help illustrate the invention. The examples are not intended to be exhaustive or to limit the invention to the precise forms disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best understand and utilize the invention. The invention is limited only by the claims and the full scope and equivalents thereof.
Claims (8)
1. A pipe thread machining assembly, comprising:
The rolling wheels comprise rolling wheel bodies, rolling shaft sleeves and rolling bearings, wherein the rolling wheel bodies are of approximately round table-shaped structures, the rolling shaft sleeves are arranged in one end of the lower bottom surface of the rolling wheel bodies, the rolling bearings are arranged in one end of the upper bottom surface of the rolling wheel bodies, and the rolling bearings are arranged on the other end of the upper bottom surface of the rolling wheel bodies
The thread rolling wheels comprise thread rolling wheel bodies, thread rolling shaft sleeves and thread rolling bearings, the thread rolling wheel bodies are of approximately round table-shaped structures, the thread rolling shaft sleeves are installed in one end of the upper bottom surface of the thread rolling wheel bodies, and the thread rolling bearings are installed in one end of the lower bottom surface of the thread rolling wheel bodies;
Rolling the wheel seat;
a plurality of rolling wheel shafts which are arranged on the rolling wheel seat, the rolling wheel is rotationally arranged on the rolling wheel shaft;
a thread rolling wheel seat;
the thread rolling wheel shafts are arranged on the thread rolling wheel seat, and the thread rolling wheels are arranged on the thread rolling wheel shafts in a rotating mode.
2. The tube thread machining assembly of claim 1, wherein the inner wall surface of the rolling sleeve is provided with a plurality of lubrication grooves, and the inner wall surface of the rolling sleeve is provided with a plurality of lubrication grooves.
3. The tube thread forming assembly of claim 1, wherein the roller body is in an interference fit with the roller sleeve, wherein the roller sleeve is in a clearance fit with the roller shaft, wherein the roller body is in an interference fit with the outer race of the roller bearing, and wherein the inner race of the roller bearing is in an interference fit with the roller shaft.
4. A pipe thread machining assembly according to claim 3, wherein the axial mounting gap between the roller sleeve and the roller shaft is in the range 0.1 to 0.5 mm.
5. A pipe thread machining assembly according to claim 1, wherein the thread roller body is in interference fit with the thread roller sleeve, the thread roller sleeve is in clearance fit with the thread roller shaft, the thread roller body is in interference fit with the thread roller bearing, and the inner ring of the thread roller bearing is in interference fit with the thread roller shaft.
6. A pipe thread machining assembly according to claim 5, wherein the axial mounting gap between the thread rolling sleeve and the thread rolling shaft is in the range 0.1 to 0.5 mm.
7. A pipe thread machining assembly according to claim 1, wherein the rolling sleeve is a beryllium copper sleeve, the rolling bearing is a basket needle bearing, the thread rolling sleeve is a beryllium copper sleeve, and the thread rolling bearing is a basket needle bearing.
8. A method of assembling a process kit for use in a pipe thread process kit according to claim 1, comprising the steps of:
The rolling bearing is arranged at one end of the upper bottom surface of the rolling wheel body;
the rolling shaft sleeve is arranged at one end of the lower bottom surface of the rolling wheel body;
mounting the thread rolling bearing at one end of the lower bottom surface of the thread rolling wheel body, and
And installing the thread rolling shaft sleeve at one end of the upper bottom surface of the thread rolling wheel body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211060215.3A CN115958127B (en) | 2022-08-31 | 2022-08-31 | Pipe thread machining assembly and assembling method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211060215.3A CN115958127B (en) | 2022-08-31 | 2022-08-31 | Pipe thread machining assembly and assembling method thereof |
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| Publication Number | Publication Date |
|---|---|
| CN115958127A CN115958127A (en) | 2023-04-14 |
| CN115958127B true CN115958127B (en) | 2025-11-11 |
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| CN202211060215.3A Active CN115958127B (en) | 2022-08-31 | 2022-08-31 | Pipe thread machining assembly and assembling method thereof |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07217652A (en) * | 1994-01-31 | 1995-08-15 | Nippon Bearing Kk | Bearing device |
| CN2690073Y (en) * | 2004-04-06 | 2005-04-06 | 刘树铭 | Steel bar peeling rib straight screw thread rolling machine head |
| CN107061499A (en) * | 2017-06-16 | 2017-08-18 | 常州市良久机械制造有限公司 | A kind of axle sleeve |
| CN217941627U (en) * | 2022-08-31 | 2022-12-02 | 上海泛华紧固系统有限公司 | Pipe thread machining assembly |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204912635U (en) * | 2015-09-07 | 2015-12-30 | 温岭市超精工具有限公司 | Axial thread rolling tool |
| CN210387386U (en) * | 2019-07-12 | 2020-04-24 | 苏州施必牢精密紧固件有限公司 | Thread rolling wheel disc for thread rolling machine |
| CN215697646U (en) * | 2021-08-11 | 2022-02-01 | 浙江中原万楹螺纹科技有限公司 | Thread rolling wheel tool for producing conical threads |
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2022
- 2022-08-31 CN CN202211060215.3A patent/CN115958127B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07217652A (en) * | 1994-01-31 | 1995-08-15 | Nippon Bearing Kk | Bearing device |
| CN2690073Y (en) * | 2004-04-06 | 2005-04-06 | 刘树铭 | Steel bar peeling rib straight screw thread rolling machine head |
| CN107061499A (en) * | 2017-06-16 | 2017-08-18 | 常州市良久机械制造有限公司 | A kind of axle sleeve |
| CN217941627U (en) * | 2022-08-31 | 2022-12-02 | 上海泛华紧固系统有限公司 | Pipe thread machining assembly |
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| CN115958127A (en) | 2023-04-14 |
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