CN113500417A - Train turning turbine with real-time position error compensation and no wheel drop processing - Google Patents
Train turning turbine with real-time position error compensation and no wheel drop processing Download PDFInfo
- Publication number
- CN113500417A CN113500417A CN202110724774.9A CN202110724774A CN113500417A CN 113500417 A CN113500417 A CN 113500417A CN 202110724774 A CN202110724774 A CN 202110724774A CN 113500417 A CN113500417 A CN 113500417A
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- worm
- wheel
- seat
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- train
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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
- B23Q1/00—Members which are comprised in the general build-up of a form of machine, particularly relatively large fixed members
- B23Q1/25—Movable or adjustable work or tool supports
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Abstract
The invention discloses a train turning wheel machine with real-time position error compensation and no wheel drop processing. The train turning turbine with real-time error compensation and no wheel drop processing comprises a worm driving motor, a fixed seat, a height adjusting seat, a rail bottom plate, a z-direction guide rail assembly, a motor seat, a z-direction motor, an x-direction guide rail assembly, a cutter rest, a sliding shoe, a bearing seat, a corner box, an x-direction motor, a sliding block, a bolt, a nut, a shaft support, a shaft, a transmission gear, a worm wheel, a worm supporting block, a worm and a rack; in the machining process, the worm drives the motor to drive the height adjusting seat to lift and correct errors through worm transmission and gear rack transmission, and the reliability of the position of the tool rest in the machining process is ensured by utilizing the characteristic of reverse stroke locking of the worm gear; aiming at train wheels with different diameters, the error accumulation caused by the fact that the cutter feeding extension line is not beyond the axle center of the train wheel can be eliminated in the process of correcting numerical control machining, and the train turning turbine device without wheel dropping machining can always achieve accurate cutting in the process of machining the train wheel tread.
Description
The technical field is as follows:
the invention relates to the field of numerical control machine tools. In particular to a turning and repairing numerical control machine tool for the wheel tread of a non-falling wheel train.
Background art:
the wheel machining is not carried out, and the wheel machining mode is a machining mode without disassembling the train wheel pair. The train wheel to be processed is suspended on a front separation guide rail and a rear separation guide rail, a pit is arranged in the middle of the guide rails, processing equipment is installed on the pit through bolts, the excircle outline tread of the train wheel is fixed through a pair of positioning wheels, and the positioning wheels drive the wheel to make the wheel rotate relative to a cutter. The pit provides a special clamp that applies a downward clamping force to the axle housing. In the machining process, the tread of the outer contour of the train wheel is fed along with the cutter, the radius is gradually reduced, and the wheel center of the train wheel moves downwards. The benchmark is displaced, so that the wheel center does not pass through the extension line of the cutter in the cutting process, and a position error is generated between the cutter feeding amount and the actual cutting amount of the wheel excircle contour tread.
The invention content is as follows:
the height adjusting seat can correct errors controllably in the machining process, can effectively correct error accumulation caused by the fact that a cutter feeding extension line is not larger than the axle center of a train wheel in the numerical control machining process, and enables the train turning turbine device without wheel drop machining to achieve accurate cutting in the process of machining the tread of the train wheel all the time.
A train turning machine with real-time position error compensation and no wheel drop processing comprises a worm driving motor, a fixed seat, a height adjusting seat, a rail bottom plate, a z-direction guide rail assembly, a motor seat, a z-direction motor, an x-direction guide rail assembly, a cutter rest, a sliding shoe, a bearing seat, a corner box, an x-direction motor, a sliding block, a bolt, a nut, a shaft seat, a shaft, a transmission gear, a worm wheel, a worm supporting block, a worm and a rack.
The train turning machine is characterized in that: the height adjusting seat, the rail bottom plate and the z-direction guide rail are connected through screws, and the cross platform is connected with an upper sliding block and a lower sliding block which are respectively embedded on the z-direction guide rail and the x-direction guide rail; the Z-direction screw and the cross platform form a screw pair, the screw pair is formed by the Z-direction screw and the cross platform, the X-direction screw and the tool rest form a screw pair, the screw pair is connected with the bearing seat, the motor seat, the corner box and the X-direction motor, the tool rest is fixed at the upper end of the turning machine and used for placing a tool, and when the servo motor operates, the screw pair converts the rotary motion into linear motion, so that the respective motions of the tool rest for mounting the tool in the X direction and the Z direction are realized.
Through worm transmission and gear rack transmission, a worm driving motor drives a height adjusting seat to lift and correct errors, and the reliability of the position of a tool rest in the machining process is ensured by utilizing the characteristic of reverse stroke locking of a worm gear; the error accumulation caused by the fact that the cutter feeding extension line is not larger than the axle center of the train wheel and the system error in the vertical direction are decomposed into movement control quantities of the worm driving motor and the x-direction motor, and accurate cutting in the process of machining the train wheel tread is achieved.
The worm driving motor is assembled on the fixed seat, the left and right notches of the fixed seat and the sliding block form a translation pair, and the sliding block is assembled on the height adjusting seat through a bolt, so that the guiding function is realized.
The transmission requires the same rotation direction of the worm wheel and the worm and the same modulus, and the pressure angle of the end surface of the tangent worm wheel is equal to the pressure angle of the axial surface of the worm. The displacement expression of the height adjusting seat is as follows:
in the formula, s is the displacement of the height adjusting seat, d is the reference circle diameter of the transmission gear, k is the number of worm heads, z is the number of worm teeth, and theta is the rotation angle of the worm driving motor.
The worm is assembled on the fixing seat, one end of the worm is connected with the worm driving motor, the worm supporting block is installed at one end of the worm, the worm wheel is meshed with the worm, the worm wheel and the transmission gears on the two sides of the worm are installed on the shaft, the shaft is supported on the shaft support and connected with the fixing seat, the rack is connected to the height adjusting seat, and the automatic control of the lifting of the height adjusting seat is achieved through worm transmission and gear rack transmission.
Description of the drawings:
FIG. 1 is a schematic view of the apparatus of the present invention.
In the figure: 1. the worm driving motor 2, the fixed seat 3, the height adjusting seat 4, the rail base plate 5, the z-direction rail assembly 6, the motor seat 7, the z-direction motor 8, the x-direction rail assembly 9, the cutter 10, the cutter rest 11, the sliding shoe 12, the bearing seat 13, the corner box 14 and the x-direction motor.
Fig. 2 is a detailed schematic of the present invention.
In the figure: 15. slide block, 16, bolt and nut, 17, shaft support, 18, shaft, 19, transmission gear, 20, worm wheel, 21, worm support block, 22 worm, 23, rack.
Fig. 3 is a view illustrating the notch of the fixing base according to the present invention.
Fig. 4 is a schematic diagram of the mechanism movement of the present invention.
In the figure: 1. worm, 2, worm wheel, 3, drive gear, 4, rack.
The specific implementation mode is as follows:
the height adjusting seat, the rail bottom plate and the z-direction guide rail are connected through screws, and the cross platform is connected with an upper sliding block and a lower sliding block which are respectively embedded on the z-direction guide rail and the x-direction guide rail.
The z-direction screw and the cross platform form a screw pair to form a revolute pair with the bearing seat and the motor seat, and the x-direction screw and the tool rest form a screw pair to be connected with the bearing seat, the motor seat, the corner box and the x-direction motor.
The worm is assembled on the fixed seat, one end of the worm is connected with the worm driving motor, and the other end of the worm is provided with the worm supporting block.
The worm wheel and the transmission gears on the two sides are arranged on the shaft, the shaft is supported on the shaft support and connected with the fixed seat, and the rack is connected to the height adjusting seat.
The transmission requires the same rotation direction of the worm wheel and the worm and the same modulus, and the pressure angle of the end surface of the tangent worm wheel is equal to the pressure angle of the axial surface of the worm. The displacement expression of the height adjusting seat is as follows:
in the formula, s is the displacement of the height adjusting seat, d is the reference circle diameter of the transmission gear, k is the number of worm heads, z is the number of worm teeth, and theta is the rotation angle of the worm driving motor.
The above examples are only for illustrating the technical idea and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the content of the present invention and to implement the present invention, and it is not intended to cover the scope of the present invention by equivalent changes or modifications made according to the spirit of the present invention.
Claims (3)
1. A train turning machine with real-time position error compensation and no wheel drop processing is characterized in that: a train turning turbine with real-time position error compensation and no wheel drop processing comprises a worm driving motor, a fixed seat, a height adjusting seat, a rail bottom plate, a z-direction guide rail assembly, a motor seat, a z-direction motor, an x-direction guide rail assembly, a cutter rest, a sliding shoe, a bearing seat, a corner box, an x-direction motor, a sliding block, a bolt, a nut, a shaft seat, a shaft, a transmission gear, a worm wheel, a worm supporting block, a worm and a rack; through worm transmission and gear rack transmission, a worm driving motor drives a height adjusting seat to lift and correct errors, and the reliability of the position of a tool rest in the machining process is ensured by utilizing the characteristic of reverse stroke locking of a worm gear; the error accumulation caused by the fact that the cutter feeding extension line is not larger than the axle center of the train wheel and the system error in the vertical direction are decomposed into movement control quantities of the worm driving motor and the x-direction motor, and accurate cutting in the process of machining the train wheel tread is achieved.
2. A real-time position error compensated, drop-free wheel machining train turning machine according to claim 1, wherein: the height adjusting seat, the rail bottom plate and the z-direction guide rail are connected through screws, and the cross platform is connected with an upper sliding block and a lower sliding block which are respectively embedded on the z-direction guide rail and the x-direction guide rail; the z-direction screw and the cross platform form a screw pair to form a revolute pair with the bearing seat and the motor seat, and the x-direction screw and the tool rest form a screw pair to be connected with the bearing seat, the motor seat, the corner box and the x-direction motor; and when the servo motor operates, the screw rod pair converts the rotary motion into linear motion, so that the x direction and the z direction of the tool rest for mounting the tool are respectively moved.
3. A real-time position error compensated, drop-free wheel machining train turning machine according to claim 2, wherein: the worm driving motor is assembled on the fixed seat, the left and right notches of the fixed seat and the sliding block form a translation pair, and the sliding block is assembled on the height adjusting seat through a bolt to realize a guiding function; the worm is assembled on the fixed seat, one end of the worm is connected with the worm driving motor, and the other end of the worm is provided with the worm supporting block; the worm wheel is meshed with the worm, the worm wheel and the transmission gears on the two sides are arranged on the shaft, the shaft is supported on the shaft support and connected with the fixing seat, the rack is connected to the height adjusting seat, and the lifting of the height adjusting seat is automatically controllable through worm transmission and gear rack transmission.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110724774.9A CN113500417A (en) | 2021-06-29 | 2021-06-29 | Train turning turbine with real-time position error compensation and no wheel drop processing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110724774.9A CN113500417A (en) | 2021-06-29 | 2021-06-29 | Train turning turbine with real-time position error compensation and no wheel drop processing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113500417A true CN113500417A (en) | 2021-10-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110724774.9A Pending CN113500417A (en) | 2021-06-29 | 2021-06-29 | Train turning turbine with real-time position error compensation and no wheel drop processing |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1355074A1 (en) * | 2002-04-18 | 2003-10-22 | Güdel AG Antriebs- und Lineartechnik | Linear drive |
| CN104070894A (en) * | 2014-05-10 | 2014-10-01 | 张磊 | Magnetic writing board with handwriting erasing mechanism |
| CN206287309U (en) * | 2016-12-07 | 2017-06-30 | 宜兴市锦龙陶瓷有限公司 | A kind of two-sided cutting equipment of ceramic honey comb |
| CN211431495U (en) * | 2019-08-09 | 2020-09-08 | 武汉科技大学 | Lifting table based on worm gear |
| CN111730416A (en) * | 2020-06-11 | 2020-10-02 | 杭州友佳精密机械有限公司 | Multi-spindle machining center with micro-motion compensation function |
| CN111941149A (en) * | 2020-08-26 | 2020-11-17 | 山东理工大学 | Double-shaft constant force machining compensation device for cutting machining |
| CN113000869A (en) * | 2021-03-03 | 2021-06-22 | 湘潭大学 | Liftable numerical control does not fall wheel knife rest device |
-
2021
- 2021-06-29 CN CN202110724774.9A patent/CN113500417A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1355074A1 (en) * | 2002-04-18 | 2003-10-22 | Güdel AG Antriebs- und Lineartechnik | Linear drive |
| CN104070894A (en) * | 2014-05-10 | 2014-10-01 | 张磊 | Magnetic writing board with handwriting erasing mechanism |
| CN206287309U (en) * | 2016-12-07 | 2017-06-30 | 宜兴市锦龙陶瓷有限公司 | A kind of two-sided cutting equipment of ceramic honey comb |
| CN211431495U (en) * | 2019-08-09 | 2020-09-08 | 武汉科技大学 | Lifting table based on worm gear |
| CN111730416A (en) * | 2020-06-11 | 2020-10-02 | 杭州友佳精密机械有限公司 | Multi-spindle machining center with micro-motion compensation function |
| CN111941149A (en) * | 2020-08-26 | 2020-11-17 | 山东理工大学 | Double-shaft constant force machining compensation device for cutting machining |
| CN113000869A (en) * | 2021-03-03 | 2021-06-22 | 湘潭大学 | Liftable numerical control does not fall wheel knife rest device |
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Application publication date: 20211015 |