CN219924578U - Lathe tailstock for processing slender shaft - Google Patents
Lathe tailstock for processing slender shaft Download PDFInfo
- Publication number
- CN219924578U CN219924578U CN202321721121.6U CN202321721121U CN219924578U CN 219924578 U CN219924578 U CN 219924578U CN 202321721121 U CN202321721121 U CN 202321721121U CN 219924578 U CN219924578 U CN 219924578U
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- China
- Prior art keywords
- tailstock
- main body
- shaft
- shoulder
- ball bearing
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- 238000003754 machining Methods 0.000 description 7
- 230000005484 gravity Effects 0.000 description 5
- 238000010438 heat treatment Methods 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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Abstract
The utility model discloses a lathe tailstock for processing an slender shaft, which comprises a tailstock of a lathe, wherein a hole is formed in the axis of the tailstock, and external threads are arranged at the end part of the tailstock; the rotating device comprises a cone rod positioned at the rear end and a main body positioned at the front end, a blind hole is formed in the axis of the main body, a first shoulder is arranged at one end, close to the cone rod, of the main body, and a connecting nut is sleeved from the other end of the main body and then connected to an external thread of a tailstock; the rear end of the adjustable chuck is provided with two sections of step shafts with diameters sequentially reduced from the front to the rear, a group of deep groove ball bearings are arranged on the shaft of the thinner section side by side, a thrust ball bearing is arranged on the shaft of the thicker section, a round pressing plate for pressing the thrust ball bearing from the other side to the second shoulder is arranged on the outer side of the thrust ball bearing, the circumference of the pressing plate is connected to a rotating device through a plurality of socket head cap screws, the center is changed into a working principle of clamping a workpiece by a tailstock to realize tensioning turning, and the shaft is not easy to bend.
Description
Technical Field
The utility model relates to the field of lathe technological equipment, in particular to a lathe tailstock for machining an slender shaft.
Background
Turning of the slender shaft is always a technical problem of processing due to rigidity, gravity, linear thermal expansion in the processing process and the like.
The clamping mode of the traditional slender shaft is to clamp one-top follow rest or the machining equipment with two ends adopting the tip follow rest, and the two clamping modes can only solve the problems of clamping and positioning of the slender shaft and deformation of the cutter point part during machining, and can not solve the problems of gravity deformation caused by self gravity of the slender shaft and thermal deformation caused by thermal expansion of a heating wire caused by machining heating, and the two problems are the most difficult problems of slender shaft machining.
Disclosure of Invention
Aiming at the defects in the prior art, the utility model provides a lathe tailstock for processing an slender shaft, which solves the defects.
In order to solve the technical problems, the utility model adopts the following technical scheme:
a lathe tailstock for processing an slender shaft, comprising
The tail seat of the lathe is provided with a hole which is transversely arranged at the axis of the tail seat and an external thread which is used for connection is arranged at the end part of the tail seat;
the rotary body-shaped rotating device comprises a conical rod positioned at the rear end and a main body positioned at the front end, wherein the conical rod is inserted into a hole of the tailstock, a blind hole with an opening opposite to the conical rod is arranged at the axis of the main body, a first shoulder is arranged at one end, close to the conical rod, of the main body, a connecting nut is sleeved from the other end of the main body and then connected to an external thread of the tailstock, and the inner wall of the connecting nut presses the side surface of the first shoulder;
the rear end of the adjustable chuck is provided with two sections of step shafts with diameters sequentially reduced from the head to the rear, and a second shoulder is arranged between the two sections of shafts; the shaft of the thinner section is provided with a group of deep groove ball bearings side by side, the shaft of the thicker section is provided with a thrust ball bearing, the outer side of the thrust ball bearing is provided with a round pressing plate for pressing the thrust ball bearing from the other side to the second shoulder, the circumference of the pressing plate is connected to the rotating device through a plurality of inner hexagon screws, and the end part of the rotating device is provided with inner threads for connecting the hexagon screws in advance.
Advantageous effects
The existing lathe tailstock is improved, the improved tailstock can tighten the slender shaft, and an axial pulling force is applied to the slender shaft, so that gravity deformation caused by self gravity of the slender shaft and thermal deformation caused by thermal expansion caused by machining heating are offset.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model;
FIG. 2 is an exploded view of the present utility model;
marked in the figure as:
1-a tailstock;
1 a-hole, 1 b-external thread;
2-connecting nuts;
3-deep groove ball bearings;
4-rotation means, 4 a-taper, 4 b-body, 4 c-first shoulder;
5-thrust ball bearings;
6-pressing plates;
7-an adjustable chuck, 7 a-a step shaft, 7 b-a second shoulder;
8-socket head cap screws.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Referring to fig. 1 to 2, the present utility model provides a lathe tailstock for processing an elongated shaft, comprising a tailstock 1 of a lathe, wherein an axis of the tailstock 1 is provided with a hole 1a transversely arranged and an external thread 1b for connection is arranged at the end part;
a revolving body-shaped rotating device 4, the rotating device 4 comprises a cone rod 4a positioned at the rear end and a main body 4b positioned at the front end, the cone rod 4a is inserted into a hole 1a of the tailstock 1, a blind hole with an opening opposite to the cone rod 4a is arranged at the axis of the main body 4b, a first shoulder 4c is arranged at the position of the main body 4b near one end of the cone rod 4a, a connecting nut 2 is sleeved from the other end of the main body 4b and then is connected to an external thread 1b of the tailstock 1, and the inner wall of the connecting nut 2 presses the side surface of the first shoulder 4 c;
the rear end of the adjustable chuck 7 is provided with two sections of step shafts 7a with diameters decreasing from the front to the rear in sequence, and a second shoulder 7b is arranged between the two sections of shafts; the shaft of the thinner section is provided with a group of deep groove ball bearings 3 side by side, the shaft of the thicker section is provided with a thrust ball bearing 5, the outer side of the thrust ball bearing 5 is provided with a round pressing plate 6 for pressing the thrust ball bearing from the other side to the second shoulder 7b, the circumference of the pressing plate 6 is connected to the rotating device 4 through 3 inner hexagon screws 8, and the end part of the rotating device 4 is provided with inner threads connected with the inner hexagon screws 8 in advance.
The center is changed into a working principle of clamping a workpiece by a tailstock to realize tensioning turning, and a novel mode of converting traditional rotary machining of one clamp and one top into one clamp and one pull is realized; the shaft has the advantages of simple structure, compact outline size, light weight, convenient installation, strong universality and the like, and the shaft is not easy to bend during processing.
It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present utility model may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in detail below, and that the embodiments described in the examples may be combined as appropriate to form other embodiments that will be apparent to those skilled in the art.
Claims (1)
1. A lathe tailstock for processing an elongated shaft, which is characterized in that: comprising
The tail seat of the lathe is provided with a hole which is transversely arranged at the axis of the tail seat and an external thread which is used for connection is arranged at the end part of the tail seat;
the rotary body-shaped rotating device comprises a conical rod positioned at the rear end and a main body positioned at the front end, wherein the conical rod is inserted into a hole of the tailstock, a blind hole with an opening opposite to the conical rod is arranged at the axis of the main body, a first shoulder is arranged at one end, close to the conical rod, of the main body, a connecting nut is sleeved from the other end of the main body and then connected to an external thread of the tailstock, and the inner wall of the connecting nut presses the side surface of the first shoulder;
the rear end of the adjustable chuck is provided with two sections of step shafts with diameters sequentially reduced from the head to the rear, and a second shoulder is arranged between the two sections of shafts; the shaft of the thinner section is provided with a group of deep groove ball bearings side by side, the shaft of the thicker section is provided with a thrust ball bearing, the outer side of the thrust ball bearing is provided with a round pressing plate for pressing the thrust ball bearing from the other side to the second shoulder, the circumference of the pressing plate is connected to the rotating device through a plurality of inner hexagon screws, and the end part of the rotating device is provided with inner threads for connecting the inner hexagon screws in advance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321721121.6U CN219924578U (en) | 2023-07-03 | 2023-07-03 | Lathe tailstock for processing slender shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321721121.6U CN219924578U (en) | 2023-07-03 | 2023-07-03 | Lathe tailstock for processing slender shaft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219924578U true CN219924578U (en) | 2023-10-31 |
Family
ID=88496721
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321721121.6U Active CN219924578U (en) | 2023-07-03 | 2023-07-03 | Lathe tailstock for processing slender shaft |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219924578U (en) |
-
2023
- 2023-07-03 CN CN202321721121.6U patent/CN219924578U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |