CN204672980U - A kind of numerically controlled lathe dead center tailstock - Google Patents
A kind of numerically controlled lathe dead center tailstock Download PDFInfo
- Publication number
- CN204672980U CN204672980U CN201520373017.1U CN201520373017U CN204672980U CN 204672980 U CN204672980 U CN 204672980U CN 201520373017 U CN201520373017 U CN 201520373017U CN 204672980 U CN204672980 U CN 204672980U
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- China
- Prior art keywords
- tailstock
- dead center
- tail spindle
- numerically controlled
- controlled lathe
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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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Abstract
A kind of numerically controlled lathe dead center tailstock, comprise hydraulic jack tailstock body, described hydraulic jack tailstock body is connected with tail spindle, described tail spindle is arranged Biserial cylindrical roller bearing, high accuracy angular contact ball bearing, spacer and blind flange, described spacer and hydraulic jack tailstock body arrange sleeve, outside described sleeve, shell is set; In described tail spindle, thimble is set; Described sleeve is also arranged dust ring and Z1 type expansion set.
Description
Technical field
The utility model belongs to lathe equipments technical field, specifically relates to a kind of numerically controlled lathe dead center tailstock.
Background technology
At present, known tail stock is primarily of the composition such as sleeve, screw mandrel of tailstock body, band internal taper hole.The in-built live centre of sleeve taper hole is for supporting long, heavy industry part, its shortcoming is: although dress live centre support workpiece can High Rotation Speed, but centering affects by factors such as live centre running accuracy and thimble emersion sleeve long support poor rigidities, still be unfavorable for the raising of workpiece to be machined surface quality, be especially unfavorable for that some are not suitable for improving the non-ferrous metal of surface quality and heavy, large workpiece by the method for grinding.
Summary of the invention
The utility model mainly solves the technical problem existing for above-mentioned prior art, provides a kind of numerically controlled lathe dead center tailstock.
Above-mentioned technical problem of the present utility model is mainly solved by following technical proposals: a kind of numerically controlled lathe dead center tailstock, comprise hydraulic jack tailstock body, described hydraulic jack tailstock body is connected with tail spindle, described tail spindle is arranged Biserial cylindrical roller bearing, high accuracy angular contact ball bearing, spacer and blind flange, described spacer and hydraulic jack tailstock body arrange sleeve, outside described sleeve, shell is set; In described tail spindle, thimble is set; Described sleeve is also arranged dust ring and Z1 type expansion set.
As preferably, described high accuracy angular contact ball bearing arranges 3 groups.
As preferably, described tail spindle inside arranges M24 standard thread, and described M24 standard thread is when dismantling gland and thimble, and available pin removal directly takes out tail spindle, is easy to install and maintain.
As preferably, described Z1 type expansion set arranges 2 groups, and described Z1 type expansion set can prevent sleeve from radially wobbling and effectively prevent dirt and iron filings from entering.
The beneficial effect that the utility model has:
(1) tail spindle head installs pretightening double-row cylinder roller bearing, and afterbody installs 3 groups of high accuracy thrust angular contact bearings, is provided with certain distance between pretightening double-row cylinder roller bearing and high accuracy thrust angular contact bearing, to increase the rigidity of tail spindle.Compared with traditional thimble, effectively improve rigidity and the processing dimension stability of whole device, be more conducive to thimble and process heavily loaded part.
(2) tail spindle inside is threaded M24 standard thread, when dismantling gland and thimble, can take out tail spindle by direct pin removal, being easy to install and maintain.
(3) when sleeve collapses stretches, by pushing down 2 groups of Z1 type expansion sets with the forward flange lid of dust ring and oil outlet, preventing sleeve from radially wobbling and effectively preventing dirt and iron filings from entering, dimensional stability when ensure that slip expansion and life-span.Therefore, the utility model has the features such as rational in infrastructure.
Accompanying drawing explanation
Fig. 1 is structure chart of the present utility model.
In figure: 1, sleeve; 2, spacer; 3, Biserial cylindrical roller bearing; 4, high accuracy angular contact ball bearing; 5, tail spindle; 6, blind flange; 7, thimble; 8, dust ring; 9, Z1 type expansion set; 10, hydraulic jack tailstock body; 11, shell; 12, M24 standard thread.
Detailed description of the invention
Below by embodiment, and by reference to the accompanying drawings, the technical solution of the utility model is described in further detail.
Embodiment: a kind of numerically controlled lathe dead center tailstock, as shown in Figure 1, comprise hydraulic jack tailstock body, described hydraulic jack tailstock body is connected with tail spindle, described tail spindle is arranged Biserial cylindrical roller bearing, high accuracy angular contact ball bearing, spacer and blind flange, described spacer and hydraulic jack tailstock body arrange sleeve, outside described sleeve, shell is set; In described tail spindle, thimble is set; Described sleeve is also arranged dust ring and Z1 type expansion set.
Numerically controlled lathe dead center tailstock installs pretightening double-row cylinder roller bearing by tail spindle head, afterbody installs 3 groups of high accuracy thrust angular contact bearings, certain distance is provided with, to increase the rigidity of tail spindle between pretightening double-row cylinder roller bearing and high accuracy thrust angular contact bearing.Compared with traditional thimble, effectively improve rigidity and the processing dimension stability of whole device, be more conducive to thimble and process heavily loaded part; Tail spindle inside is threaded M24 standard thread, when dismantling gland and thimble, can take out tail spindle by direct pin removal, being easy to install and maintain; When sleeve collapses stretches, by pushing down 2 groups of Z1 type expansion sets with the forward flange lid of dust ring and oil outlet, preventing sleeve from radially wobbling and effectively preventing dirt and iron filings from entering, dimensional stability when ensure that slip expansion and life-span.Therefore, the utility model has the features such as rational in infrastructure.
Finally it should be pointed out that above embodiment is only the more representational example of the utility model.Obviously, the utility model is not limited to above-described embodiment, can also have many distortion.Every above embodiment is done according to technical spirit of the present utility model any simple modification, equivalent variations and modification, all should think and belong to protection domain of the present utility model.
Claims (4)
1. a numerically controlled lathe dead center tailstock, comprise hydraulic jack tailstock body, it is characterized in that described hydraulic jack tailstock body is connected with tail spindle, described tail spindle is arranged Biserial cylindrical roller bearing, high accuracy angular contact ball bearing, spacer and blind flange, described spacer and hydraulic jack tailstock body arrange sleeve, outside described sleeve, shell is set; In described tail spindle, thimble is set; Described sleeve is also arranged dust ring and Z1 type expansion set.
2. a kind of numerically controlled lathe dead center tailstock according to claim 1, is characterized in that described high accuracy angular contact ball bearing arranges 3 groups.
3. a kind of numerically controlled lathe dead center tailstock according to claim 1, is characterized in that described tail spindle inside arranges M24 standard thread.
4. a kind of numerically controlled lathe dead center tailstock according to claim 1, is characterized in that described Z1 type expansion set arranges 2 groups.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520373017.1U CN204672980U (en) | 2015-06-02 | 2015-06-02 | A kind of numerically controlled lathe dead center tailstock |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520373017.1U CN204672980U (en) | 2015-06-02 | 2015-06-02 | A kind of numerically controlled lathe dead center tailstock |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204672980U true CN204672980U (en) | 2015-09-30 |
Family
ID=54172703
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520373017.1U Expired - Fee Related CN204672980U (en) | 2015-06-02 | 2015-06-02 | A kind of numerically controlled lathe dead center tailstock |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204672980U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114279701A (en) * | 2021-12-31 | 2022-04-05 | 连云港斯克斯机器人科技有限公司 | Device for detecting fluency of ball screw pair |
-
2015
- 2015-06-02 CN CN201520373017.1U patent/CN204672980U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114279701A (en) * | 2021-12-31 | 2022-04-05 | 连云港斯克斯机器人科技有限公司 | Device for detecting fluency of ball screw pair |
| CN114279701B (en) * | 2021-12-31 | 2024-05-31 | 连云港斯克斯机器人科技有限公司 | Ball screw pair fluency detection device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150930 Termination date: 20180602 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |