CN101934382B - Machine tool compound tail frame - Google Patents
Machine tool compound tail frame Download PDFInfo
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- CN101934382B CN101934382B CN2010102667223A CN201010266722A CN101934382B CN 101934382 B CN101934382 B CN 101934382B CN 2010102667223 A CN2010102667223 A CN 2010102667223A CN 201010266722 A CN201010266722 A CN 201010266722A CN 101934382 B CN101934382 B CN 101934382B
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Abstract
The invention relates to a machine tool functional component, in particular to a machine tool compound tail frame the counter spindle and the puller cylinder of which are compounded. The tail frame comprises a tail frame body, a sleeve and the puller cylinder, and is characterized in that the sleeve is arranged in the tail frame body and can move axially; the counter spindle is supported in the sleeve through a bearing; and the tail hole of the sleeve is internally provided with a hydraulic cylinder capable of pushing the sleeve to move axially. The invention has the following characteristics: 1, the device of the invention integrates the functions of a hydraulic tailstock and the counter spindle into one component through a reasonable structure, thus the device not only has the function of the hydraulic tailstock, but aslo has the function of the unpowered counter spindle, can realize one machine with multiple functions, improves the machine tool utilization rate to a great degree, and reduces the equipment investment, thereby bringing certain economic and social benefits for the machine building industry; and 2, since the front part of the counter spindle is an ISO standard spindle head and the taper hole is a Mohs taper hole, an apex or a fixture can be conveniently installed, the through hole of the counter spindle can penetrate through a draw bar, and a chuck cylinder can be arranged on the rear part of the counter spindle.
Description
Technical field
The present invention relates to a kind of machine tool functional component, the compound tailstock of lathe that particularly a kind of secondary main shaft and stretch oil cylinder are compound.
Background technology
On numerically controlled lathe during the bigger rotation of processing draw ratio type part, the tailstock functional part that is absolutely necessary is if there is the processing of tailstock supporting workpiece will not be difficult to completion.Present normally used tailstock mainly contains two kinds; A kind of is the hydraulic pressure tailstock; Mainly be made up of tailstock body, stretch oil cylinder, sleeve and revolution mandrel etc., it is top that the anterior taper hole of revolution mandrel is installed, and promotes sleeve, revolution mandrel and top protracting to hold out against shaft-like workpiece by stretch oil cylinder.Second kind is secondary main shaft, mainly is made up of tailstock body, secondary main shaft and bearing etc., jig is installed to hold the tubing workpiece on the secondary main shaft.Because a chassis bed can only be equipped with a tailstock; The producer that has pipe part to process again for existing axial workpiece; Must be furnished with the numerically controlled lathe of above-mentioned two kinds of tailstocks simultaneously respectively, will bring very big equipment input like this, simultaneously since these two kinds of workpiece quantity and not matching on process time; Often a kind of lathe must overload operation and another kind of lathe is interim idle, and the lathe utilization rate is difficult to improve.
Summary of the invention
The purpose of this invention is to provide a kind of compound tailstock of lathe that improves lathe utilization rate, minimizing equipment input.
The present invention seeks to realize: a kind of combined type tail stock for machine tool through following technical scheme; Comprise tailstock body, can axially movable sleeve and stretch oil cylinder in tailstock body; It is characterized in that secondary main shaft is bearing in the sleeve through bearing, in the afterbody hole of sleeve, be equipped with and promote the axially movable hydraulic jack of sleeve.
Above-mentioned stretch oil cylinder is made up of tubular cylinder body, trunk-piston and ring flange, and the inner hole sleeve of tubular cylinder body is contained on the secondary main shaft, and the annular projection of tubular cylinder body one end and the sealing of sleeve endoporus match; The endoporus sealing shroud of trunk-piston is contained on the periphery of tubular cylinder body; The annular projection of trunk-piston one end and the sealing of sleeve endoporus match; On trunk-piston, have two and enter the oil extraction duct; One of them advances the oil drain out in oil extraction duct and opens the end at annular projection, and another oil drain out that advances that enters the oil extraction duct is opened the in addition end at annular projection, two enter the oil extraction duct another advance oil drain out and link to each other with fluid pressure line; Ring flange is fixed on the sleeve tail end, and the endoporus of trunk-piston and ring flange is removable to be tightly connected.
Above-mentioned secondary main shaft front portion is the standard main tapping, and the taper hole on the secondary main shaft is a mohs tapered bore.
There are internal and external threads or end-face helical hole in above-mentioned main shaft rear portion.
The present invention has following characteristics: 1. this device passes through reasonable structural design with the function of hydraulic pressure tailstock and secondary main shaft; Be integrated in the middle of the machine tool functional component, made its function that had both had the hydraulic pressure tailstock, had the function of secondary king post system tailstock again; Can realize one-machine-multi-function; Increase substantially the lathe utilization rate, minimizing equipment drops into, thereby brings certain economic benefits and social benefit for manufacturing industry; 2. because secondary main shaft front portion is the iso standard main tapping, and taper hole is mohs tapered bore, can install top easily or jig, and the through hole of secondary main shaft can pass pull bar, but rear portion chuck for installing oil cylinder.
Description of drawings
Accompanying drawing 1 is the structural representation of invention.
The specific embodiment
Below in conjunction with accompanying drawing structure of the present invention is described.
Shown in accompanying drawing 1, the sleeve 2 that can move forward and backward is housed in tailstock body 1, secondary main shaft 3 is bearing in the sleeve through fore bearing 12 and rear bearing 9, and is fastened on the main shaft with preceding locking nut 11 through back locking nut 8.Between fore bearing 12 and rear bearing 9, outer separator 10 is housed.The ring flange 14 of sleeve left end is fastened on the sleeve 2 through screw and locking nut 13., physical dimension can ring flange 14 directly be fastened on the sleeve 2 with screw when allowing.Secondary main shaft 3 front portions are the iso standard main tapping, and taper hole is mohs tapered bore, and there are internal and external threads or end-face helical hole in the rear portion; Mohs tapered bore can be installed top; The iso standard main tapping can be installed jigs such as oild chuck, and the through hole in the secondary main shaft 3 can pass pull bar, but rear portion chuck for installing oil cylinder.In the hole of sleeve 2 right-hand members, stretch oil cylinder is installed; Stretch oil cylinder is made up of tubular cylinder body 7, trunk-piston 4 and ring flange 5; The inner hole sleeve of tubular cylinder body 7 is contained on the secondary main shaft 3, and the left side of the annular projection of tubular cylinder body 7 left ends and the sealing of the corresponding surface of sleeve endoporus match; The endoporus sealing shroud of trunk-piston 4 is contained on the periphery of tubular cylinder body 7, and can move axially.The annular projection of trunk-piston 4 left ends and the sealing of sleeve 2 endoporus match, and can move axially.On trunk-piston 4, have two and enter the oil extraction duct; One of them advances the oil drain out in oil extraction duct and opens the left end at annular projection; Another oil drain out that advances that enters the oil extraction duct is opened the right-hand member at annular projection, two enter the oil extraction duct another advance oil drain out and link to each other with fluid pressure line; Ring flange 5 is fixed on the sleeve tail end, removable being tightly connected of endoporus of trunk-piston 4 and ring flange 5.Ring flange 6 is fixed on the right side of tailstock body 1, and ring flange 5, trunk-piston 4 are enclosed in the tailstock body, and secondary main shaft 3 right-hand members stretch out ring flange 6.Have on the ring flange 6 with trunk-piston 4 on two advance corresponding two oilholes in oil extraction duct, above-mentioned two oilholes link to each other with fluid pressure line.
When injection pressure is oily in the A chamber, can promote sleeve and be moved to the left, drive secondary main shaft through sleeve and be moved to the left, thereby be the top pressure that top tight workpiece is provided.When B chamber injection pressure oil, can promote sleeve and move right, drive secondary main shaft through sleeve and move right, can workpiece loading and unloading.
Claims (3)
1. combined type tail stock for machine tool; Comprise tailstock body, being installed in the tailstock body can axially movable sleeve and stretch oil cylinder; It is characterized in that secondary main shaft (3) is bearing in the sleeve (2) through bearing; In the afterbody hole of sleeve, be equipped with and promote the axially movable stretch oil cylinder of sleeve (2); This stretch oil cylinder is made up of tubular cylinder body (7), trunk-piston (4) and ring flange (5), and the inner hole sleeve of tubular cylinder body is contained on the secondary main shaft (3), and the annular projection of tubular cylinder body one end and the sealing of sleeve (2) endoporus match; The endoporus sealing shroud of trunk-piston (4) is contained on the periphery of tubular cylinder body; The annular projection of trunk-piston one end and the sealing of sleeve (2) endoporus match; On trunk-piston (4), have two and enter the oil extraction duct; One of them advances the oil drain out in oil extraction duct and opens the end at the annular projection of trunk-piston one end, and another oil drain out that advances that enters the oil extraction duct is opened the end in addition at the annular projection of trunk-piston one end, two enter the oil extraction duct another advance oil drain out and link to each other with fluid pressure line; Ring flange (5) is fixed on sleeve (2) tail end, and the endoporus of trunk-piston and ring flange is removable to be tightly connected.
2. combined type tail stock for machine tool according to claim 1 is characterized in that: above-mentioned secondary main shaft (3) is anterior to be the standard main tapping, and the taper hole on the main shaft is a mohs tapered bore.
3. combined type tail stock for machine tool according to claim 2 is characterized in that: there are internal and external threads or end-face helical hole in above-mentioned secondary main shaft (3) rear portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102667223A CN101934382B (en) | 2010-08-31 | 2010-08-31 | Machine tool compound tail frame |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102667223A CN101934382B (en) | 2010-08-31 | 2010-08-31 | Machine tool compound tail frame |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101934382A CN101934382A (en) | 2011-01-05 |
| CN101934382B true CN101934382B (en) | 2012-10-31 |
Family
ID=43388087
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010102667223A Active CN101934382B (en) | 2010-08-31 | 2010-08-31 | Machine tool compound tail frame |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101934382B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106424773A (en) * | 2016-12-14 | 2017-02-22 | 济南第机床有限公司 | Rotating and telescopic sub-spindle device with tight break |
| CN107199354A (en) * | 2017-07-27 | 2017-09-26 | 苏州蓝王机床工具科技有限公司 | A kind of tail stock |
| CN112649186B (en) * | 2020-12-28 | 2023-07-21 | 齐重数控装备股份有限公司 | Method for simulating load test operation of unpowered tailstock sleeve part of numerical control heavy horizontal lathe |
| CN117300179B (en) * | 2023-11-28 | 2024-04-09 | 佛山市朝铨机械实业有限公司 | Machine tool spindle with built-in rotary oil cylinder |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1504746A (en) * | 1974-03-06 | 1978-03-22 | Index Werke Kg Hahn & Tessky | Bearing assemblies for spindles subject to axial loads |
| EP0295514A2 (en) * | 1987-06-15 | 1988-12-21 | THE WARNER & SWASEY COMPANY | Apparatus for supporting a workpiece |
| CN201361716Y (en) * | 2009-03-16 | 2009-12-16 | 长沙金岭机床有限责任公司 | Hydraulic tailstock of numerically controlled lathe |
| CN102019440A (en) * | 2010-11-24 | 2011-04-20 | 大连机床集团有限责任公司 | Spring pre-tightening type hydraulic floating tailstock |
| CN201799621U (en) * | 2010-08-31 | 2011-04-20 | 宁夏新瑞长城机床有限公司 | Composite tailstock of machine tool |
-
2010
- 2010-08-31 CN CN2010102667223A patent/CN101934382B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1504746A (en) * | 1974-03-06 | 1978-03-22 | Index Werke Kg Hahn & Tessky | Bearing assemblies for spindles subject to axial loads |
| EP0295514A2 (en) * | 1987-06-15 | 1988-12-21 | THE WARNER & SWASEY COMPANY | Apparatus for supporting a workpiece |
| CN201361716Y (en) * | 2009-03-16 | 2009-12-16 | 长沙金岭机床有限责任公司 | Hydraulic tailstock of numerically controlled lathe |
| CN201799621U (en) * | 2010-08-31 | 2011-04-20 | 宁夏新瑞长城机床有限公司 | Composite tailstock of machine tool |
| CN102019440A (en) * | 2010-11-24 | 2011-04-20 | 大连机床集团有限责任公司 | Spring pre-tightening type hydraulic floating tailstock |
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| Publication number | Publication date |
|---|---|
| CN101934382A (en) | 2011-01-05 |
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