CN101786250B - Spindle transmission component of CNC grinding (milling) groove machine tool - Google Patents
Spindle transmission component of CNC grinding (milling) groove machine tool Download PDFInfo
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- CN101786250B CN101786250B CN2009102640938A CN200910264093A CN101786250B CN 101786250 B CN101786250 B CN 101786250B CN 2009102640938 A CN2009102640938 A CN 2009102640938A CN 200910264093 A CN200910264093 A CN 200910264093A CN 101786250 B CN101786250 B CN 101786250B
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Abstract
The invention relates to a machine tool for processing machining tools such as drill bits, screw taps and milling cutters, in particular to a spindle transmission component of a CNC grinding or milling groove machine tool. The component comprises a fixed tank, a spindle, a linear feed CNC motor and a rotary indexing CNC motor, wherein a collet used for clamping a work piece is arranged at the front end of the spindle; the spindle is divided into a front section and a rear section which are coaxial with each other; the front section of the spindle is a section of spline shaft outside which a spline sleeve is sleeved; the spindle can rotate along with the spindle sleeve and slide forward and backward relative to the spline sleeve; the spline sleeve is arranged on the fixed tank through a bearing and can be driven by the rotary indexing CNC motor; the rear section of the spindle is a section of screw rod matched with a screw rod pair; the spindle can be driven to move forward and backwardby the screw rod pair; and the screw rod pair is arranged on the fixed tank through the bearing and is driven by the rotary indexing CNC motor. The spindle transmission component has the advantages of simple structure, small size, convenient manufacturing and installation and high processing accuracy.
Description
Technical field
The present invention relates to a kind of lathe that is used for processing machine tools such as drill bit, screw tap, milling cutter, specifically be a kind of numerical control mill or mill groove machine tool chief axis drive disk assembly.
Background technology
Common be used for processing the mill of machine tools such as worker's drill bit, screw tap, milling cutter or milling the groove lathe generally including: lathe bed, as the mill or the milling head parts of process tool, be used for controlling mill or milling head Lift Part that mill or milling head go up and down, be used for the clamping workpiece go forward side by side advance to parts such as the spindle transmission component of calibration, digital control system.Wherein spindle transmission component need drive the motion that workpiece to be processed carries out straight-line feed and rotation calibration, to process straight trough or the spiral grooves on the cutters such as drill bit, screw tap, milling cutter.
The main shaft driving structure of existing this type of lathe mainly contains two kinds:
A kind of method is to rely on hydraulic motor to drive main axis rotation, and the helical pitch with the workpiece identical pitch is set on the main shaft; Fixing slide block is housed in the helical pitch groove, and when main axis rotation, main shaft drives workpiece and pushes ahead under the domination of slide block according to the pitch of helical pitch; When main shaft was shunk back rotation, fixedly the index dial of slide block rotated to required sub-degree angle under function of friction, is located by hydraulic mechanism again; Accomplish the action of next step operation, this method complex structure, part is easy to wear; Indexing accuracy is poor, and index dial and helical pitch will be changed according to different workpieces numerical value, do not possess the linear feeding function;
Another kind method is to be connected with spindle with a control motor, is responsible for the main axis rotation calibration; Main shaft is installed on the casing, and casing is placed in movably on the track, lead screw pair is installed on the casing cooperates with motor-driven leading screw; The whole straight line of realizing casing moves, although this method possesses above-mentioned functions, and its complex structure; It is big to take up room, and track easy abrasion, product precision are difficult for guaranteeing.
Summary of the invention
Technical problem to be solved by this invention is, provide a kind of simple in structure, volume is little, manufacturing and numerical control mill easy for installation, that machining accuracy is high or mill groove machine tool chief axis drive disk assembly.
Numerical control of the present invention is ground or is milled groove machine tool chief axis drive disk assembly and includes static housing, main shaft, straight-line feed numerical-control motor, rotation calibration numerical-control motor; Front-end of spindle is equipped with and is used for the chuck of clamping workpiece; Main shaft is divided into coaxial forward and backward two sections; The main shaft leading portion is one section splined shaft, and splined shaft is with a spline housing outward, and main shaft can slide front and back with the spline housing rotation and with spline housing relatively, and spline housing is installed in through bearing also can be by above-mentioned rotation calibration numerical control motor-driven on the static housing; The main shaft back segment is one section leading screw that cooperates with lead screw pair, and main shaft can move forward and backward under the driving of lead screw pair, and lead screw pair is installed on the static housing and by above-mentioned straight-line feed numerical-control motor through bearing and drives.
The present invention concentrates on straight-line feed and rotary indexer structure on the main shaft, has reduced number of components, and manufacturing and easy for installation also is easy to guarantee machining accuracy; It can accurately control the straight-line feed and rotation calibration of main shaft through two numerical-control motors simultaneously, can adapt to the helicla flute of different size or the processing request of straight trough.
Description of drawings
Fig. 1 is a structural representation of the present invention.
The specific embodiment
As shown in the figure, this spindle transmission component includes static housing 1, main shaft 2, straight-line feed numerical-control motor 3, rotation calibration numerical-control motor 4; Main shaft 2 front ends are equipped with and are used for the chuck 5 of clamping workpiece; Main shaft is divided into coaxial forward and backward two sections; The main shaft leading portion is one section splined shaft 21, and splined shaft is with a spline housing 6 outward, and main shaft can slide front and back with the spline housing rotation and with spline housing relatively, and spline housing 6 is installed on the static housing 1 through bearing and can be driven by rotation calibration numerical-control motor 4; The main shaft back segment is one section leading screw 22 that cooperates with lead screw pair 7, and main shaft can move forward and backward under the driving of lead screw pair, and lead screw pair 7 is installed on the static housing 1 and by straight-line feed numerical-control motor 3 through bearing and drives.The splined shaft 21 of forming main shaft 2 can process on the axle of an integral body with leading screw 22, also can be processed respectively by two axles to be fixedly connected again.
In the course of work of the present invention, when 4 rotations of rotation calibration numerical-control motor, can make main axis rotation or calibration; When straight-line feed numerical-control motor 3 rotation, can make the main shaft straight ahead or fall back; When two numerical-control motors turn round simultaneously, can make the main shaft screw propulsion or fall back.Numeral through to numerical-control motor is set, and can realize the helical pitch and the working groove number of any number.Main shaft moves forward and backward and can be compensated by 3 opposite spins of straight-line feed numerical-control motor in the calibration process.
Claims (3)
1. numerical control mill or mill groove machine tool chief axis drive disk assembly, it is characterized in that: it includes static housing (1), main shaft (2), straight-line feed numerical-control motor (3), rotation calibration numerical-control motor (4); Main shaft (2) front end is equipped with and is used for the chuck (5) of clamping workpiece; Main shaft is divided into coaxial forward and backward two sections; The main shaft leading portion is one section splined shaft (21); Splined shaft is with a spline housing (6) outward; Main shaft can rotate and the slip of relative front and back with spline housing with spline housing, and spline housing (6) is installed in static housing (1) through bearing upward also can be by rotating calibration numerical-control motor (4) driving; The main shaft back segment is one section leading screw (22) that cooperates with lead screw pair (7), and main shaft can move forward and backward under the driving of lead screw pair, and lead screw pair (7) is installed in static housing (1) through bearing and goes up and driven by straight-line feed numerical-control motor (3).
2. numerical control according to claim 1 is ground or milled groove machine tool chief axis drive disk assembly, it is characterized in that: splined shaft (21) and the leading screw (22) of forming main shaft (2) process on the axle of an integral body.
3. numerical control according to claim 1 is ground or milled groove machine tool chief axis drive disk assembly, it is characterized in that: the splined shaft (21) of composition main shaft (2) is processed respectively by two axles with leading screw (22) again and is fixedly connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009102640938A CN101786250B (en) | 2009-12-30 | 2009-12-30 | Spindle transmission component of CNC grinding (milling) groove machine tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009102640938A CN101786250B (en) | 2009-12-30 | 2009-12-30 | Spindle transmission component of CNC grinding (milling) groove machine tool |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101786250A CN101786250A (en) | 2010-07-28 |
| CN101786250B true CN101786250B (en) | 2012-07-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009102640938A Active CN101786250B (en) | 2009-12-30 | 2009-12-30 | Spindle transmission component of CNC grinding (milling) groove machine tool |
Country Status (1)
| Country | Link |
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| CN (1) | CN101786250B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102765006B (en) * | 2012-08-03 | 2015-11-25 | 西南铝业（集团）有限责任公司 | A kind of planer-type milling machine and milling mechanism thereof |
| CN103286609A (en) * | 2013-06-24 | 2013-09-11 | 江苏飞达钻头股份有限公司 | Coaxial line mechanism capable of achieving stepless axial feed, dividing and helical motion |
| CN108788877A (en) * | 2018-07-16 | 2018-11-13 | 丹阳市盛力机械有限公司 | Direct-drive type groove or thread processing equipment spindle transmission component |
| CN108750653B (en) * | 2018-07-17 | 2024-02-27 | 陕西科技大学 | Control method of multi-track electronic cam picking and placing manipulator |
| CN110788660A (en) * | 2019-11-12 | 2020-02-14 | 哈尔滨理工大学 | Automatic spindle feeding actuating mechanism |
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2009
- 2009-12-30 CN CN2009102640938A patent/CN101786250B/en active Active
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| Publication number | Publication date |
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| CN101786250A (en) | 2010-07-28 |
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