CN203471450U - Variable speed drive system of numerically controlled lathe - Google Patents
Variable speed drive system of numerically controlled lathe Download PDFInfo
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- CN203471450U CN203471450U CN201320355391.XU CN201320355391U CN203471450U CN 203471450 U CN203471450 U CN 203471450U CN 201320355391 U CN201320355391 U CN 201320355391U CN 203471450 U CN203471450 U CN 203471450U
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Abstract
The utility model discloses a variable speed drive system of a numerically controlled lathe. The variable speed drive system comprises a spindle, an electric motor and a transmission unit. The variable speed drive system is characterized in that a speed change gear is arranged between the spindle and the transmission unit, one end of the transmission unit is connected to the electric motor, and the other end of the transmission unit is connected to the speed change gear. By applying the variable speed drive system of the numerically controlled lathe, which is provided by the utility model, in comparison with the conventional drive system of the numerically controlled lathe, the motion and the power, which are transmitted to the spindle by the electric motor, can be changed by adopting the speed change gear, the output torque of the spindle is improved and the speed regulation range of the spindle is expanded under the condition of the constant power of the electric motor, and the cutting torque of the drive system is improved at low speed.
Description
Technical field
The utility model relates to a kind of variable ratio drive system, relates in particular to a kind of variable ratio drive system of infinitely variable speeds conversion step speed change of numerically controlled lathe.
Background technology
Numerically controlled lathe of the prior art, as shown in Figure 3, adopt the easy stepless speed regulation mainshaft mechanism of device, headstock structure is comparatively simple and easy, and as shown in Figure 4, the low speed segment output torque of stepless speed regulation mainshaft mechanism is less, usually cannot meet the requirement of lathe high-rate cutting, if cutting force is large, surpassing certain limit by electric current and just there will be frequency converter overload-alarm of frequency converter, causes bad result.
Prior art modifying device adopts powerful spindle drive motor and frequency converter, can solve the less problem of low speed segment output torque of mainshaft mechanism, but the volume of high-power spindle drive motor and frequency converter, weight and cost are higher, can cause the wasting of resources, affect economic benefit.
Summary of the invention
In view of the defect that above-mentioned prior art exists, the purpose of this utility model is the variable ratio drive system that proposes a kind of numerically controlled lathe, solves the less problem of low speed segment output torque of speed governing mainshaft mechanism in prior art.
The purpose of this utility model: a kind of variable ratio drive system of numerically controlled lathe, comprise main shaft, motor and transmission unit, it is characterized in that: between described main shaft and transmission unit, be provided with speed change gear, described transmission unit one end and motor are connected, and the other end and speed change gear are connected.
Further, described speed change gear comprises the first variable-speed shaft, the second variable-speed shaft, gear, No. two gears, No. three gears, No. four gears and is provided with the first gear and the built-up gear of the second gear, described the first variable-speed shaft is a gear and No. two gears of grafting tooth footpath facial difference fixedly, described built-up gear packaged type is secured to the second variable-speed shaft, and built-up gear is meshed with a gear or No. two gears on moving direction, described No. three gears are fixedly plugged in the second variable-speed shaft, and are meshed with No. four gears that are fixedly plugged in main shaft.
Again further, the change-speed gearing that a described change-speed gearing is 41 teeth, No. two change-speed gearings are the change-speed gearing of 21 teeth, speed change wheels the first gear is the gear of 33 teeth, speed change wheels the second gear is the gear of 53 teeth, No. three change-speed gearings are the change-speed gearing of 31 teeth, and No. four change-speed gearings are the change-speed gearing of 39 teeth.
The variable ratio drive system of a kind of numerically controlled lathe of application the utility model, compare traditional CNC Lathe Main Driving System, adopt speed change gear to change motion and power that motor transfers to main shaft, in the situation that motor power (output) is constant, improved the output torque of main shaft, and expanded the speed adjustable range of main shaft, when low speed, improved the cutting moment of torque of transmission system.
Accompanying drawing explanation
Fig. 1 is the structural representation of the variable ratio drive system of a kind of numerically controlled lathe of the utility model.
Fig. 2 is torque and the power characteristic schematic diagram of the variable ratio drive system of a kind of numerically controlled lathe of the utility model.
Fig. 3 is the structural representation of traditional stepless speed regulation mainshaft mechanism.
Fig. 4 is torque and the power characteristic schematic diagram of traditional stepless speed regulation mainshaft mechanism.
The specific embodiment
The utility model is for the less phenomenon of low speed segment output torque of speed governing mainshaft mechanism in prior art, innovation has proposed a kind of variable ratio drive system of numerically controlled lathe, adopt speed change gear to change motion and power that motor transfers to main shaft, improve the output torque of main shaft, and expanded the speed adjustable range of main shaft.
As shown in Figure 1 and 2, a kind of variable ratio drive system of numerically controlled lathe, comprises main shaft 1, motor 2 and transmission unit 3, especially, between main shaft 1 and transmission unit 3, be provided with speed change gear 4, transmission unit 3 one end and motor 2 are connected, and the other end and speed change gear 4 are connected.
Above-mentioned speed change gear 4 comprises the first variable-speed shaft 5, the second variable-speed shaft 6, a gear 51, No. two gears 52, No. three gears 61, No. four gears 11 and be provided with the built-up gear 62 of the first gear 621 and the second gear 622, the first variable-speed shaft 5 is a gear 51 and No. two gears 52 of grafting tooth footpath facial difference fixedly, built-up gear 62 packaged types are secured to the second variable-speed shaft 6, and built-up gear 62 is meshed with a gear 51 or No. two gears 52 on moving direction, No. three gear 61 is fixedly plugged in the second variable-speed shaft 6, and be meshed with No. four gears 11 that are fixedly plugged in main shaft 1.
In addition, a change-speed gearing is the change-speed gearing of 41 teeth, No. two change-speed gearings are the change-speed gearing of 21 teeth, speed change wheels the first gear is the gear of 33 teeth, speed change wheels the second gear is the gear of 53 teeth, No. three change-speed gearings are the change-speed gearing of 31 teeth, and No. four change-speed gearings are the change-speed gearing of 39 teeth.
Specific embodiment one, by regulating built-up gear 62 to move in the second variable-speed shaft 6, make the first gear 621 and gear 51 engagements, motor 2 transmits motion and power to the first variable-speed shaft 5 by transmission unit 3, again by gear 51 and the intermeshing transmission campaign of the first gear 621 and power to the second variable-speed shaft 6, the second variable-speed shaft 6 and No. three change-speed gearing 61 interlocks, finally pass through No. three change-speed gearings 61 and No. four intermeshing transmission campaigns of change-speed gearing 11 and power to main shaft 1.Shown in Fig. 2, motion and power that motor transfers to main shaft change through variable-speed shaft and gear assembly, in the situation that motor power (output) is constant, have increased the moment of torsion of main shaft slow cutting, have met the requirement of lathe high-rate cutting.
Specific embodiment two, by regulating built-up gear 62 to move in the second variable-speed shaft 6, make the second gear 622 and No. two gear 52 engagements, motor 2 transmits motion and power to the first variable-speed shaft 5 by transmission unit 3, again by No. two gears 52 and the intermeshing transmission campaign of the second gear 622 and power to the second variable-speed shaft 6, the second variable-speed shaft 6 and No. three change-speed gearing 61 interlocks, finally pass through No. three change-speed gearings 61 and No. four intermeshing transmission campaigns of change-speed gearing 11 and power to main shaft 1, by the second gear 622 and No. two gear 52 engagements of built-up gear, in the situation that motor power (output) is constant, to main shaft speed governing, meet motion of main shaft and power demand.
By above-mentioned character express, can find out, the variable ratio drive system of a kind of numerically controlled lathe of application the utility model, compare traditional CNC Lathe Main Driving System, adopt speed change gear to change motion and power that motor transfers to main shaft, in the situation that motor power (output) is constant, improve the output torque of main shaft, and expanded the speed adjustable range of main shaft, when low speed, improved the cutting moment of torque of transmission system.
In addition to the implementation, the utility model can also have other embodiment, and all employings are equal to the technical scheme of replacement or equivalent transformation formation, within all dropping on the utility model scope required for protection.
Claims (3)
1. a variable ratio drive system for numerically controlled lathe, comprises main shaft, motor and transmission unit, it is characterized in that: between described main shaft and transmission unit, be provided with speed change gear, described transmission unit one end and motor are connected, and the other end and speed change gear are connected.
2. the variable ratio drive system of numerically controlled lathe according to claim 1, it is characterized in that: described speed change gear comprises the first variable-speed shaft, the second variable-speed shaft, a gear, No. two gears, No. three gears, No. four gears and be provided with the built-up gear of the first rack rails and the second rack rails, described the first variable-speed shaft is a gear and No. two gears of grafting tooth footpath facial difference fixedly, described built-up gear packaged type is secured to the second variable-speed shaft, and built-up gear is meshed with a gear or No. two gears on moving direction, described No. three gears are fixedly plugged in the second variable-speed shaft, and be meshed with No. four gears that are fixedly plugged in main shaft.
3. the variable ratio drive system of numerically controlled lathe according to claim 2, it is characterized in that: the change-speed gearing that a described gear is 41 teeth, No. two gears are the change-speed gearing of 21 teeth, speed change wheels the first rack rails is the rack rails of 33 teeth, speed change wheels the second rack rails is the rack rails of 53 teeth, No. three gears are the change-speed gearing of 31 teeth, and No. four gears are the change-speed gearing of 39 teeth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320355391.XU CN203471450U (en) | 2013-06-20 | 2013-06-20 | Variable speed drive system of numerically controlled lathe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320355391.XU CN203471450U (en) | 2013-06-20 | 2013-06-20 | Variable speed drive system of numerically controlled lathe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203471450U true CN203471450U (en) | 2014-03-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320355391.XU Expired - Fee Related CN203471450U (en) | 2013-06-20 | 2013-06-20 | Variable speed drive system of numerically controlled lathe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203471450U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103286330A (en) * | 2013-06-20 | 2013-09-11 | 苏州工业职业技术学院 | Variable transmission system of numerically controlled lathe |
-
2013
- 2013-06-20 CN CN201320355391.XU patent/CN203471450U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103286330A (en) * | 2013-06-20 | 2013-09-11 | 苏州工业职业技术学院 | Variable transmission system of numerically controlled lathe |
| CN103286330B (en) * | 2013-06-20 | 2016-07-06 | 苏州工业职业技术学院 | A kind of variable ratio drive system of numerically controlled lathe |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140312 Termination date: 20140620 |
|
| EXPY | Termination of patent right or utility model |