CN114871827A - Servo screw rod transmission device for pipe milling machine - Google Patents
Servo screw rod transmission device for pipe milling machine Download PDFInfo
- Publication number
- CN114871827A CN114871827A CN202210611878.3A CN202210611878A CN114871827A CN 114871827 A CN114871827 A CN 114871827A CN 202210611878 A CN202210611878 A CN 202210611878A CN 114871827 A CN114871827 A CN 114871827A
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- China
- Prior art keywords
- sleeve
- box body
- worm
- lead screw
- screw
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q5/00—Driving or feeding mechanisms; Control arrangements therefor
- B23Q5/22—Feeding members carrying tools or work
- B23Q5/34—Feeding other members supporting tools or work, e.g. saddles, tool-slides, through mechanical transmission
- B23Q5/36—Feeding other members supporting tools or work, e.g. saddles, tool-slides, through mechanical transmission in which a servomotor forms an essential element
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q5/00—Driving or feeding mechanisms; Control arrangements therefor
- B23Q5/22—Feeding members carrying tools or work
- B23Q5/34—Feeding other members supporting tools or work, e.g. saddles, tool-slides, through mechanical transmission
- B23Q5/38—Feeding other members supporting tools or work, e.g. saddles, tool-slides, through mechanical transmission feeding continuously
- B23Q5/40—Feeding other members supporting tools or work, e.g. saddles, tool-slides, through mechanical transmission feeding continuously by feed shaft, e.g. lead screw
- B23Q5/402—Feeding other members supporting tools or work, e.g. saddles, tool-slides, through mechanical transmission feeding continuously by feed shaft, e.g. lead screw in which screw or nut can both be driven
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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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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Transmission Devices (AREA)
Abstract
The invention provides a servo lead screw transmission device for a pipe milling machine, which comprises a coupling installed in a conical sleeve, wherein one end of the coupling is connected with an output shaft key of a servo motor, the other end of the coupling is connected with a front end key of a worm arranged along the horizontal direction, the worm sequentially penetrates through the conical sleeve and the front end of a box body and is rotatably connected with the rear end of the box body through a first conical roller bearing, a box cover is installed at the joint of the worm and the rear end of the box body, a second conical roller bearing and a framework sealing ring are further sleeved in the middle of the worm, the second conical roller bearing is installed at an opening at the front end of the box body, the framework sealing ring is arranged at an opening of the conical sleeve close to one side of the box body, a sealing cover is sleeved outside the framework sealing ring, and the sealing cover is fastened on the inner wall of the conical sleeve through screws. The invention adopts a turbine transmission mode, so that the adjustment precision is higher, the precision of one wire can be achieved, and the integral matching precision is further improved.
Description
Technical Field
The invention relates to high-precision copper pipe forming equipment, in particular to a servo screw rod transmission device for a pipe milling machine.
Background
The pipe milling machine is one of the important devices in the production of high-precision copper pipes, and is mainly used for milling and forming copper pipe blanks. In the whole machining and forming process, the damage of copper pipe blanks and the high product qualification rate are guaranteed, and meanwhile, the high machining precision is required, so that the copper pipe cannot be bent or the surface of the copper pipe cannot be uneven, and the control precision of the pipe milling machine is very high. However, most of the existing pipe milling machines are in a semi-automatic operation mode, manual intervention is still needed in the processes of feeding, positioning, face milling and the like, on one hand, the work efficiency is reduced, on the other hand, the influence on the processing precision is large, especially, when each process is switched, the problem of mutual matching often causes product damage or disqualification, for example, when copper pipes with different pipe diameters are switched, the control precision of a servo screw rod is difficult to achieve accurate positioning, and because a servo motor can only control the precision according to gears, the gap between each gear is large, the problem that the position of a milling cutter is too large or not enough is often caused, which is a technical problem that needs to be solved all the time in production.
Disclosure of Invention
Aiming at the problem that the control precision of a pipe milling machine is insufficient in the existing copper pipe machining process, the invention introduces a servo screw rod transmission device for the pipe milling machine, which has higher control precision and higher automation degree.
The invention relates to a servo lead screw transmission device for a pipe milling machine, which comprises a coupling installed in a conical sleeve, wherein one end of the coupling is connected with an output shaft key of a servo motor, the other end of the coupling is connected with a front end key of a worm arranged along the horizontal direction, the worm sequentially penetrates through the conical sleeve and the front end of a box body and then is rotatably connected with the rear end of the box body through a first conical roller bearing, a box cover is installed at the joint of the worm and the rear end of the box body, a second conical roller bearing and a framework sealing ring are further sleeved in the middle of the worm, the second conical roller bearing is installed at an opening at the front end of the box body, the framework sealing ring is arranged at an opening of the conical sleeve close to one side of the box body, a sealing cover is sleeved outside the framework sealing ring, and the sealing cover is fastened on the inner wall of the conical sleeve through screws; the worm wheel is further mounted in the box body and connected with the worm, the lead screw is mounted in the center of the worm wheel, the lead screw is arranged in the vertical direction and in clearance fit with the worm wheel, an annular groove is formed in the upper end of the worm wheel, a lead screw nut outer sleeve is mounted in the annular groove, the lead screw nut outer sleeve is fixedly connected with the worm wheel and synchronously rotates along with the worm wheel, the lead screw nut outer sleeve is sleeved in the middle of the lead screw, a ball for driving the lead screw to rotate is arranged between the lead screw nut outer sleeve and the lead screw, and the ball is matched with a ball groove in the side wall of the lead screw when rotating; the bearing cover is installed to the box upper end, the bearing cover is located the worm wheel top and is fixed on the box, installs thrust bearing between bearing cover and worm wheel, still installs the nut cover in the bearing cover upper end outside, the inner chamber of nut cover is located to the upper end of screw-nut overcoat, is fixed with the sleeve in the upper end of nut cover, the upper end of lead screw is located in the sleeve.
Optimally, a copper sleeve is installed at the bottom of the box body, the lower end of the screw rod penetrates out of the copper sleeve to output power, and a screw rod sealing ring is arranged between the screw rod and the copper sleeve. The box body and the screw rod can be protected through the design of the copper sleeve, and the screw rod is prevented from being damaged due to friction with the box body when rotating.
Optimally, a baffle and an anti-collision screw are fixedly mounted at the top of the screw rod, a top plate is mounted at the top of the corresponding sleeve, and an anti-collision gasket is attached to the inner side surface of the top plate. According to the invention, the stroke of the screw rod is considered, so that a protection structure is designed on the top of the screw rod, and the screw rod can be prevented from impacting the sleeve through the arrangement of the baffle plate and the anti-collision screw.
Optimally, the ball grooves on the screw rod are distributed in a spiral shape. The spiral ball groove design can accurately control the rotation angle and the displacement of the ball, so that the effect of adjusting the stroke of the screw rod after the ball rotates is achieved, and particularly, the moving distance of a smaller unit can be realized.
Compared with the prior art, the invention has the beneficial effects that:
1. the invention adopts a turbine transmission mode to replace a direct motor transmission mode, so that the adjustment precision is higher, and meanwhile, key connection modes are adopted among turbine transmission connecting parts, so that the integral stability and precision are ensured.
2. The structure form of ball adjustment is introduced into the internal structure of the worm screw, so that the worm screw progress adjustment is more linear, the worm screw is not limited to a motor gear, the precision of one screw can be accurately achieved, and the precision of integral matching is further improved.
3. The reject ratio of the product is reduced, the working efficiency of the production line is improved, and meanwhile, the production cost is reduced.
Drawings
FIG. 1 is a schematic structural view of a servo screw transmission device for a pipe milling machine according to the present invention;
FIG. 2 is a cross-sectional view A-A of FIG. 1;
fig. 3 is a sectional view B-B of fig. 1.
In the figure, 1-conical sleeve, 2-coupling, 3-servo motor, 4-worm, 5-box, 6-first tapered roller bearing, 7-box cover, 8-second tapered roller bearing, 9-framework sealing ring, 10-sealing cover, 11-worm wheel, 12-screw, 13-annular groove, 14-screw nut jacket, 15-ball, 16-ball groove, 17-bearing gland, 18-thrust bearing, 19-nut cover, 20-sleeve, 21-copper sleeve, 22-screw sealing ring, 23-baffle, 24-anti-collision screw, 25-top plate, 26-anti-collision gasket.
Detailed Description
The invention relates to a servo screw rod transmission device for a pipe milling machine, which comprises a coupling 2 arranged in a conical sleeve 1, one end of the coupling 2 is in key connection with an output shaft of the servo motor 3, the other end of the coupling 2 is in key connection with the front end of a worm 4 arranged along the horizontal direction, the worm 4 sequentially passes through the conical sleeve 1 and the front end of the box body 5 and then is rotatably connected with the rear end of the box body 5 through a first tapered roller bearing 6, a box cover 7 is arranged at the connection part of the worm 4 and the rear end of the box body 5, a second tapered roller bearing 8 and a framework sealing ring 9 are sleeved at the middle part of the worm 4, the second tapered roller bearing 8 is arranged at the opening at the front end of the box body 5, the framework sealing ring 9 is arranged at the opening of the tapered sleeve 1 close to one side of the box body 5, a sealing cover 10 is sleeved on the outer side of the framework sealing ring 9, and the sealing cover 10 is fastened on the inner wall of the conical sleeve 1 through a screw; a worm wheel 11 is further installed in the box body 5, the worm wheel 11 is connected with the worm 4, a lead screw 12 is installed at the center of the worm wheel 11, the lead screw 12 is arranged in the vertical direction and is in clearance fit with the worm wheel 11, an annular groove 13 is formed in the upper end of the worm wheel 11, a lead screw nut outer sleeve 14 is installed in the annular groove 13, the lead screw nut outer sleeve 14 is fixedly connected with the worm wheel 11 and rotates synchronously with the worm wheel 11, the lead screw nut outer sleeve 14 is sleeved in the middle of the lead screw 12, a ball 15 used for driving the lead screw 12 to rotate is arranged between the lead screw nut outer sleeve 14 and the lead screw 12, and the ball 15 is matched with a ball groove 16 in the side wall of the lead screw 12 when rotating; a bearing gland 17 is installed at the upper end of the box body 5, the bearing gland 17 is arranged above the worm wheel 11 and fixed on the box body 5, a thrust bearing 18 is installed between the bearing gland 17 and the worm wheel 11, a nut cover 19 is further installed at the outer side of the upper end of the bearing gland 17, the upper end of the screw rod nut outer sleeve 14 is arranged in an inner cavity of the nut cover 19, a sleeve 20 is fixed at the upper end of the nut cover 19, and the upper end of the screw rod 12 is arranged in the sleeve 20.
In the invention, a copper sleeve 21 is arranged at the bottom of the box body 5, the lower end of the screw rod 12 penetrates through the copper sleeve 21 to output power, and a screw rod sealing ring 22 is arranged between the screw rod 12 and the copper sleeve 21. A baffle 23 and an anti-collision screw 24 are fixedly arranged at the top of the screw rod 12, a top plate 25 is arranged at the top of the corresponding sleeve 20, and an anti-collision gasket 26 is adhered to the inner side surface of the top plate 25. The ball grooves 16 on the screw rod 12 are distributed in a spiral shape.
The working principle is as follows: the power of the external servo motor is input into the transmission device of the invention through the output shaft of the servo motor, in particular, the power is transmitted to the worm through the coupling, the worm rotates in the box body, and drives the worm wheel to rotate, the worm wheel transmits power to the screw nut outer sleeve, the screw nut outer sleeve drives the balls inside to rotate when rotating, the balls drive the screw rod to rotate at the moment, because the track between the ball and the screw rod is spiral, the screw rod moves upwards or downwards when being stressed to rotate, and the movement displacement of the screw rod can be controlled according to the diameter of the ball, thus not only realizing the control of the extension or the retraction of the screw rod, but also more importantly, accurately controlling the micro displacement of the screw rod which is screwed out to achieve the effect of threading the screw rod, and the adjustment is not needed according to the gear of the motor, so that the adjustment of the screw rod can meet the requirements of processing copper pipes of different types.
It should be noted that the above-mentioned embodiments are only used for illustrating the technical solutions of the present invention and not for limiting the technical solutions, and although the applicant has described the invention in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions made on the technical solutions of the present invention can not be made within the spirit and scope of the technical solutions of the present invention and shall be covered by the claims of the present invention.
Claims (4)
1. A servo screw rod transmission device for a pipe milling machine is characterized by comprising a coupling (2) arranged in a conical sleeve (1), wherein one end of the coupling (2) is connected with an output shaft key of a servo motor (3), the other end of the coupling (2) is connected with a front end key of a worm (4) arranged along the horizontal direction, the worm (4) sequentially penetrates through the conical sleeve (1) and the front end of a box body (5) and then is rotatably connected with the rear end of the box body (5) through a first conical roller bearing (6), a box cover (7) is arranged at the connection part of the worm (4) and the rear end of the box body (5), a second conical roller bearing (8) and a framework sealing ring (9) are sleeved at the middle part of the worm (4), the second conical roller bearing (8) is arranged at the front end opening of the box body (5), the framework sealing ring (9) is arranged at an opening of the conical sleeve (1) close to the box body (5), a sealing cover (10) is sleeved on the outer side of the framework sealing ring (9), and the sealing cover (10) is fastened on the inner wall of the conical sleeve (1) through screws; the box body (5) is also internally provided with a worm wheel (11), the worm wheel (11) is connected with a worm (4), the center of the worm wheel (11) is provided with a lead screw (12), the lead screw (12) is arranged along the vertical direction and is in clearance fit with the worm wheel (11), the upper end of the worm wheel (11) is provided with an annular groove (13), a lead screw nut outer sleeve (14) is arranged in the annular groove (13), the lead screw nut outer sleeve (14) is fixedly connected with the worm wheel (11) and synchronously rotates along with the worm wheel (11), the lead screw nut outer sleeve (14) is sleeved at the middle part of the lead screw (12), a ball (15) for driving the lead screw (12) to rotate is arranged between the lead screw nut outer sleeve (14) and the lead screw (12), and the ball (15) is matched with a ball groove (16) on the side wall of the lead screw (12) when rotating; bearing gland (17) are installed to box (5) upper end, worm wheel (11) top is located and is fixed on box (5) in bearing gland (17), installs thrust bearing (18) between bearing gland (17) and worm wheel (11), still installs nut cover (19) in bearing gland (17) upper end outside, the inner chamber of nut cover (19) is located to the upper end of screw-nut overcoat (14), is fixed with sleeve (20) in the upper end of nut cover (19), the upper end of lead screw (12) is located in sleeve (20).
2. The servo screw transmission device for the pipe milling machine according to claim 1 is characterized in that a copper sleeve (21) is installed at the bottom of the box body (5), the lower end of the screw rod (12) outputs power after penetrating through the copper sleeve (21), and a screw rod sealing ring (22) is arranged between the screw rod (12) and the copper sleeve (21).
3. The servo screw transmission device for the pipe milling machine according to claim 2, characterized in that a baffle plate (23) and a bump screw (24) are fixedly mounted on the top of the screw (12), a top plate (25) is mounted on the top of the corresponding sleeve (20), and a bump washer (26) is attached to the inner side surface of the top plate (25).
4. Servo screw drive for a tube milling machine according to claim 3, characterized in that the ball grooves (16) on the screw (12) are distributed helically.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210611878.3A CN114871827A (en) | 2022-06-01 | 2022-06-01 | Servo screw rod transmission device for pipe milling machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210611878.3A CN114871827A (en) | 2022-06-01 | 2022-06-01 | Servo screw rod transmission device for pipe milling machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114871827A true CN114871827A (en) | 2022-08-09 |
Family
ID=82678643
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210611878.3A Pending CN114871827A (en) | 2022-06-01 | 2022-06-01 | Servo screw rod transmission device for pipe milling machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114871827A (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2115515A (en) * | 1981-12-29 | 1983-09-07 | Hiroshi Teramachi | Rotary-to-linear converter |
| CN2430422Y (en) * | 2000-05-18 | 2001-05-16 | 机械工业部西安重型机械研究所 | Ball screw lift device |
| CN2674198Y (en) * | 2004-02-19 | 2005-01-26 | 于宙 | Square worm gear ball screw type elevator |
| CN201012379Y (en) * | 2007-02-14 | 2008-01-30 | 高晓锋 | Radial feeding device of numerical controlled notching press |
| CN201914882U (en) * | 2010-12-31 | 2011-08-03 | 浙江瑞德森机械有限公司 | Jack |
| CN204417068U (en) * | 2014-12-22 | 2015-06-24 | 无锡艾尔特线性运动机械有限公司 | Spiral lift |
| CN207989676U (en) * | 2018-03-21 | 2018-10-19 | 博能传动(苏州)有限公司 | A kind of double-screw lifter |
| CN112049911A (en) * | 2020-08-10 | 2020-12-08 | 杭州艾勒维特传动机械有限公司 | Self-centering double-output worm and gear structure for elevator |
| CN213976774U (en) * | 2020-11-18 | 2021-08-17 | 常州青峰亿康机械有限公司 | Low-noise ball screw elevator |
-
2022
- 2022-06-01 CN CN202210611878.3A patent/CN114871827A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2115515A (en) * | 1981-12-29 | 1983-09-07 | Hiroshi Teramachi | Rotary-to-linear converter |
| CN2430422Y (en) * | 2000-05-18 | 2001-05-16 | 机械工业部西安重型机械研究所 | Ball screw lift device |
| CN2674198Y (en) * | 2004-02-19 | 2005-01-26 | 于宙 | Square worm gear ball screw type elevator |
| CN201012379Y (en) * | 2007-02-14 | 2008-01-30 | 高晓锋 | Radial feeding device of numerical controlled notching press |
| CN201914882U (en) * | 2010-12-31 | 2011-08-03 | 浙江瑞德森机械有限公司 | Jack |
| CN204417068U (en) * | 2014-12-22 | 2015-06-24 | 无锡艾尔特线性运动机械有限公司 | Spiral lift |
| CN207989676U (en) * | 2018-03-21 | 2018-10-19 | 博能传动(苏州)有限公司 | A kind of double-screw lifter |
| CN112049911A (en) * | 2020-08-10 | 2020-12-08 | 杭州艾勒维特传动机械有限公司 | Self-centering double-output worm and gear structure for elevator |
| CN213976774U (en) * | 2020-11-18 | 2021-08-17 | 常州青峰亿康机械有限公司 | Low-noise ball screw elevator |
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