CN216421091U - Rearmounted tailstock lathe thimble structure - Google Patents
Rearmounted tailstock lathe thimble structure Download PDFInfo
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- CN216421091U CN216421091U CN202122621071.1U CN202122621071U CN216421091U CN 216421091 U CN216421091 U CN 216421091U CN 202122621071 U CN202122621071 U CN 202122621071U CN 216421091 U CN216421091 U CN 216421091U
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- thimble
- sleeve
- tailstock
- bearing
- ball bearing
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Abstract
The utility model discloses a rearmounted tailstock lathe thimble structure aims at providing the rearmounted tailstock lathe thimble structure of precision height and longe-lived and grinding positive and negative fast. It includes the tailstock body, is connected with first sleeve and second sleeve on the tailstock body, and first sleeve is equipped with first thimble hole, is equipped with the thimble in the first thimble hole, is equipped with the bearing in the thimble, and the bearing is connected with the inner wall in first thimble hole, has cup jointed the swivel sleeve in the bearing, and in the swivel sleeve was arranged in to the thimble, the one end rotating electrical machines of swivel sleeve, bearing include angular contact ball bearing and deep groove ball bearing, are equipped with the isolating ring between angular contact ball bearing and the deep groove ball bearing. The utility model has the advantages that: the ejector pin has high working precision and long service life, the resistance is enhanced and reduced by using the bearing, the front and back surfaces of a workpiece can be rapidly processed, the structure is stable, and the assembly is convenient.
Description
Technical Field
The utility model relates to the technical field of machine tools, especially, indicate a rearmounted tailstock lathe thimble structure.
Background
At present, a lathe tailstock mainly comprises a tailstock body, a sleeve with an inner taper hole, a screw rod and the like. The sleeve is the main component of the tailstock, the lathe tailstock generally plays an auxiliary supporting role for a workpiece during processing, and the tailstock body can move and be fixed on the lathe bed. The front end of the tailstock sleeve is provided with a movable thimble, so that the top can support a workpiece, but the rotating precision of the movable thimble arranged in the taper hole of the sleeve is low, and the service life is short.
SUMMERY OF THE UTILITY MODEL
The utility model relates to an overcome among the prior art tailstock thimble precision low, the life-span is short and be difficult to the not enough of positive and negative quick grinding, provide a precision height and longe-lived and can quick grinding positive and negative rearmounted tailstock lathe thimble structure.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the utility model provides a rearmounted tailstock lathe thimble structure, includes the tailstock body, is connected with first sleeve and second sleeve on the tailstock body, and first sleeve is equipped with first thimble hole, is equipped with the thimble in the first thimble hole, is equipped with the bearing in the thimble, and the bearing has cup jointed the swivel nut with the interior wall connection of first thimble hole in the bearing, and in the swivel nut was arranged in to the thimble, the one end rotating electrical machines of swivel nut, bearing included angular contact ball bearing and deep groove ball bearing, was equipped with the isolating ring between angular contact ball bearing and the deep groove ball bearing.
The tailstock body supports first sleeve and the second sleeve of top in the below, be equipped with first thimble hole in the first sleeve, thimble and bearing have been placed in the first thimble hole, the bearing includes angular contact ball bearing and deep groove ball bearing, the thimble has cup jointed the swivel sleeve outward, the swivel sleeve overlaps mutually with the bearing, the rotating electrical machines who connects through the swivel sleeve makes the swivel sleeve drive the thimble rotatory, with isolating ring separation distance between the bearing, thereby increase the resistance of thimble when rotatory, and the thimble is driven rotatory in the bearing, the grinding precision of thimble and the life-span of thimble have been increased, the consumption of thimble has been reduced.
Preferably, the second sleeve is provided with a second thimble hole, an auxiliary thimble is arranged in the second thimble hole, one end of the auxiliary thimble is connected with a cylinder shaft connecting flange, the cylinder shaft connecting flange is connected with a connecting rod, the connecting rod is spliced with the second sleeve, and the auxiliary thimble is connected with a cylinder. The auxiliary ejector pin is arranged in the second sleeve and connected with the air cylinder shaft connecting flange, the air cylinder shaft connecting flange is connected with the second sleeve in an inserting mode through the connecting rod, the auxiliary ejector pin is supported and stabilized in the second sleeve, the air cylinder connected with the air cylinder shaft connecting flange enables the auxiliary ejector pin to move to process a workpiece, and the auxiliary ejector pin is matched with the ejector pin to rapidly process the front side and the back side of the workpiece.
Preferably, the angular contact ball bearings are provided with a plurality of angular contact ball bearings, the outer surface of the rotary sleeve is provided with a first arc surface and a second arc surface, the first arc surface and the second arc surface are provided with height differences, the tail end of the rotary sleeve is provided with a front end cover, the front end cover is sleeved with the rotary sleeve, the front end cover is arranged at one end of the first arc surface, the other end of the first arc surface is provided with a first locking nut, the angular contact ball bearings are arranged between the front end cover and the locking nut, and two sides of the angular contact ball bearings are respectively clung to the front end cover and the locking nut. The angular contact ball bearings bear radial load and axial load simultaneously so as to adapt to smooth work of the rotary sleeve at higher rotating speed.
Preferably, the number of the deep groove ball bearings is a plurality, the isolating ring is arranged at one end of the second cambered surface, the other end of the second cambered surface is provided with a second locking nut, the deep groove ball bearings are arranged between the isolating ring and the second locking nut, and two sides of the deep groove ball bearings are respectively tightly attached to the isolating ring and the second locking nut. The deep groove ball bearing reduces the friction resistance of the rotary sleeve when the rotary sleeve is sleeved with the rotary sleeve, keeps the rotating speed of the rotary sleeve, and bears radial load or radial and axial acting force simultaneously with the combined load of the rotary sleeve and the angular contact ball.
Preferably, one end of the ejector pin is a plane end and is connected with the rotating motor, the other end of the ejector pin is a tip, the tip of the ejector pin extends out of the rotating sleeve, one end of the auxiliary ejector pin is a plane end, the other end of the auxiliary ejector pin is a tip, and the tip of the ejector pin is opposite to the tip of the auxiliary ejector pin. The thimble and the auxiliary thimble keep the pointed ends opposite to facilitate the rapid front and back processing of the workpiece.
Preferably, a waterproof cover is arranged on the outer side of the front end cover and is sleeved with the rotary sleeve. The waterproof cover prevents liquid dust and the like from entering the first sleeve from the outside and influencing the operation and the service life of the rotary sleeve and the bearing.
Preferably, the first sleeve is sleeved with the tailstock front end cover on one side of the plane end of the thimble. The tailstock front end cover is convenient for the position positioning assembly and stable placement of the ejector pin.
Preferably, a tailstock rear end cover is sleeved on one side, arranged at the plane end of the auxiliary thimble, of the second sleeve, one side of the tailstock rear end cover is connected with the end face of the second sleeve, a groove is formed in the side face of the tailstock rear end cover, and the plane end of the auxiliary thimble is embedded in the groove. The embedded joint of the plane end of the auxiliary thimble and the groove and the front end cover of the tailstock are convenient for the position positioning assembly and the stable placement of the auxiliary thimble.
The utility model has the advantages that: the ejector pin has high working precision and long service life, the resistance is enhanced and reduced by using the bearing, the front and back surfaces of a workpiece can be rapidly processed, the structure is stable, and the assembly is convenient.
Drawings
Fig. 1 is a perspective view of the present invention;
FIG. 2 is a cross-sectional view A-A of FIG. 1;
fig. 3 is an enlarged view at B in fig. 2.
In the figure: 1. the tail seat comprises a tail seat body, 2 parts of a first sleeve, 3 parts of a second sleeve, 4 parts of a first thimble hole, 5 parts of a thimble, 6 parts of a rotating sleeve, 7 parts of a rotating motor, 8 parts of an angular contact ball bearing, 9 parts of a deep groove ball bearing, 10 parts of a spacer ring, 11 parts of a second thimble hole, 12 parts of an auxiliary thimble, 13 parts of a cylinder shaft connecting flange, 14 parts of a cylinder, 15 parts of a front end cover, 16 parts of a first locking nut, 17 parts of a second locking nut, 18 parts of a waterproof cover, 19 parts of a tail seat front end cover, 20 parts of a tail seat rear end cover and 21 parts of a tail seat groove.
Detailed Description
Example 1:
as shown in fig. 1, a post-tailstock machine tool thimble structure is characterized by comprising a tailstock body 1.
As shown in fig. 2, the tailstock body 1 is connected with a first sleeve 2 and a second sleeve 3, the first sleeve 2 is provided with a first thimble hole 4, a thimble 5 is arranged in the first thimble hole 4, a bearing is arranged in the thimble 5, the bearing is connected with the inner wall of the first thimble hole 3, a rotary sleeve 6 is sleeved in the bearing, the thimble 5 is arranged in the rotary sleeve 6, one end of the rotary sleeve 6 is provided with a rotary motor 7, the bearing comprises an angular contact ball bearing 8 and a deep groove ball bearing 9, and an isolation ring 10 is arranged between the angular contact ball bearing 8 and the deep groove ball bearing 9. The second sleeve 3 is provided with a second thimble hole 11, an auxiliary thimble 12 is arranged in the second thimble hole 11, one end of the auxiliary thimble 12 is connected with a cylinder shaft connecting flange 13, the cylinder shaft connecting flange 13 is connected with a connecting rod 22, the connecting rod 22 is spliced with the second sleeve 3, and the auxiliary thimble 12 is connected with a cylinder 14. The first sleeve 2 is sleeved with a tailstock front end cover 19 at one side of the plane end of the thimble 5. A tailstock rear end cover 20 is sleeved on one side, arranged at the plane end of the auxiliary thimble 12, of the second sleeve 3, one side of the tailstock rear end cover 20 is connected with the end face of the second sleeve 3, a groove 21 is formed in the side face of the tailstock rear end cover 20, and the plane end of the auxiliary thimble 12 is embedded in the groove 21. One end of the thimble 5 is a plane end and is connected with a rotating motor 7, the other end of the thimble 5 is a tip, the tip of the thimble 5 extends out of the rotating sleeve 6, one end of the auxiliary thimble 12 is a plane end, the other end of the auxiliary thimble 12 is a tip, and the tip of the thimble 5 is opposite to the tip of the auxiliary thimble 12. The outer side of the front end cover 15 is provided with a waterproof cover 18, and the waterproof cover 18 is sleeved with the rotary sleeve 6.
As shown in fig. 2 and 3, the angular contact ball bearing 8 is provided with a plurality of angular contact ball bearings, the outer surface of the rotary sleeve 6 is provided with a first arc surface and a second arc surface, the first arc surface and the second arc surface are provided with height differences, the tail end of the rotary sleeve 6 is provided with a front end cover 15, the front end cover 15 is sleeved with the rotary sleeve 6, the front end cover 15 is arranged at one end of the first arc surface, the other end of the first arc surface is provided with a first locking nut 16, the angular contact ball bearing 8 is arranged between the front end cover 15 and the first locking nut 16, and two sides of the angular contact ball bearing 8 are respectively clung to the front end cover 15 and the first locking nut 16. The number of the deep groove ball bearings 9 is multiple, the isolating ring 10 is arranged at one end of the second cambered surface, the second locking nut 17 is arranged at the other end of the second cambered surface, the deep groove ball bearings 9 are arranged between the isolating ring 10 and the second locking nut 17, and two sides of the deep groove ball bearings 9 are tightly attached to the isolating ring 10 and the second locking nut 17 respectively.
During the use, will wait to process the work piece and place thimble 5 preceding fixed, open rotating electrical machines 7, make the swivel mount 6 that links to each other with rotating electrical machines 7 drive thimble 5 rotatory, and then grind the work piece surface, angular contact ball bearing 8 and deep groove ball bearing 9 make thimble 5 rotatory stable, guarantee high accuracy. The auxiliary ejector pin 12 can process the other side of the workpiece, and the auxiliary ejector pin 12 is moved in the second sleeve 4 under the cooperation of the air cylinder 14, so as to process the workpiece.
Claims (8)
1. The utility model provides a rearmounted tailstock lathe thimble structure, characterized by includes tailstock body (1), be connected with first sleeve (2) and second sleeve (3) on tailstock body (1), first sleeve (2) are equipped with first thimble hole (4), be equipped with thimble (5) in first thimble hole (4), be equipped with the bearing in thimble (5), the bearing is connected with the inner wall of first thimble hole (4), swivel housing (6) has been cup jointed in the bearing, in swivel housing (6) was arranged in thimble (5), one end rotating electrical machines (7) of swivel housing (6), the bearing includes angular contact ball bearing (8) and deep groove ball bearing (9), be equipped with isolating ring (10) between angular contact ball bearing (8) and deep groove ball bearing (9).
2. The rear tailstock machine tool thimble structure of claim 1, characterized in that the second sleeve (3) is provided with a second thimble hole (11), an auxiliary thimble (12) is arranged in the second thimble hole (11), one end of the auxiliary thimble (12) is connected with a cylinder shaft connecting flange (13), the cylinder shaft connecting flange (13) is connected with a connecting rod (22), the connecting rod (22) is inserted into the second sleeve (3), and the auxiliary thimble (12) is connected with a cylinder (14).
3. The tailstock machine tool thimble structure of the rear claim 1, characterized in that, the angular contact ball bearing (8) is provided with a plurality of, the outer surface of the rotary sleeve (6) is provided with a first arc surface and a second arc surface, the first arc surface and the second arc surface are provided with a height difference, the tail end of the rotary sleeve (6) is provided with a front end cap (15), the front end cap (15) is sleeved with the rotary sleeve (6), the front end cap (15) is arranged at one end of the first arc surface, the other end of the first arc surface is provided with a first locking nut (16), the angular contact ball bearing (8) is arranged between the front end cap (15) and the first locking nut (16), and two sides of the angular contact ball bearing (8) are respectively attached to the front end cap (15) and the first locking nut (16).
4. The ejector pin structure of the tailstock machine tool arranged at the back of claim 1, wherein a plurality of deep groove ball bearings (9) are arranged, the isolating ring (10) is arranged at one end of the second cambered surface, a second locking nut (17) is arranged at the other end of the second cambered surface, the deep groove ball bearings (9) are arranged between the isolating ring (10) and the second locking nut (17), and two sides of each deep groove ball bearing (9) are respectively attached to the isolating ring (10) and the second locking nut (17).
5. The structure of the rear tailstock machine tool thimble according to claim 2, characterized in that one end of the thimble (5) is a plane end and is connected with the rotating motor (7), the other end of the thimble (5) is a tip, the tip of the thimble (5) extends out of the rotating sleeve (6), one end of the auxiliary thimble (12) is a plane end, the other end of the auxiliary thimble (12) is a tip, and the tip of the thimble (5) is opposite to the tip of the auxiliary thimble (12).
6. The tailstock machine tool thimble structure behind claim 3, characterized by that, the outside of said front end cap (15) has water-proof covers (18), said water-proof cover (18) is connected with the rotating sleeve (6) in a muff-coupling way.
7. The structure of the rear tailstock machine tool thimble according to claim 1, characterized in that a tailstock front end cover (19) is sleeved on one side of the first sleeve (2) which is arranged at the plane end of the thimble (5).
8. The structure of the rear tailstock lathe thimble according to claim 2, characterized in that the second sleeve (3) is sleeved with a tailstock rear end cover (20) at one side of the plane end of the auxiliary thimble (12), one side of the tailstock rear end cover (20) is connected with the end surface of the second sleeve (3), a groove (21) is arranged on the side surface of the tailstock rear end cover (20), and the plane end of the auxiliary thimble (12) is embedded with the groove (21).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122621071.1U CN216421091U (en) | 2021-10-29 | 2021-10-29 | Rearmounted tailstock lathe thimble structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122621071.1U CN216421091U (en) | 2021-10-29 | 2021-10-29 | Rearmounted tailstock lathe thimble structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216421091U true CN216421091U (en) | 2022-05-03 |
Family
ID=81336009
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122621071.1U Active CN216421091U (en) | 2021-10-29 | 2021-10-29 | Rearmounted tailstock lathe thimble structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216421091U (en) |
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2021
- 2021-10-29 CN CN202122621071.1U patent/CN216421091U/en active Active
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