CN206824670U - A kind of Centreless lathe cutter holder device that can adjust processing diameter on a large scale - Google Patents
A kind of Centreless lathe cutter holder device that can adjust processing diameter on a large scale Download PDFInfo
- Publication number
- CN206824670U CN206824670U CN201720518633.0U CN201720518633U CN206824670U CN 206824670 U CN206824670 U CN 206824670U CN 201720518633 U CN201720518633 U CN 201720518633U CN 206824670 U CN206824670 U CN 206824670U
- Authority
- CN
- China
- Prior art keywords
- rotary shaft
- half section
- large scale
- guide plate
- processing diameter
- Prior art date
- 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.)
- Expired - Fee Related
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Abstract
The utility model discloses a kind of Centreless lathe cutter holder device that can adjust processing diameter on a large scale, including immovable support, rotary shaft is installed on immovable support, the front end of rotary shaft is gear, the front half section of rotary shaft is installed with drive end bearing bracket and rear end cap in addition by bearings, the front half section of rotary shaft；The second half section excircle of rotary shaft is screw thread, the second half section of rotary shaft is connected with nut thread, nut is connected with movable carriage by fixation kit, movable carriage is slidably arranged in side guide plate one, the slider bar that bottom surface guide plate, side guide plate two and top cover surround, and the slider bar is located in the inner chamber of immovable support back segment.Device of the present utility model, realize the purpose that Centreless lathe adjusts processing diameter on a large scale.
Description
Technical field
The utility model belongs to mechanical equipment technical field, is related to a kind of Centreless lathe that can adjust processing diameter on a large scale
Cutter holder device.
Background technology
When carrying out turning to metal bar material with Centreless lathe, often because the difference of bar model needs to add lathe
Work diameter is adjusted.The scope of the general adjustable processing diameter of Centreless lathe is smaller, the knife rest adjusting range one of domestic lathe
As 5~50mm, the bar beyond the range of work can not process or can only it is bigger processing diameter lathe on process, so
Processing cost is increased, influences the machining accuracy of bar.
Utility model content
The purpose of this utility model is to provide a kind of Centreless lathe cutter holder device that can adjust processing diameter on a large scale, solves
Prior art Centreless lathe can not adjust the problem of processing diameter on a large scale.
The utility model is the technical scheme adopted is that a kind of Centreless lathe knife rest dress that can adjust processing diameter on a large scale
Put, including immovable support, rotary shaft is installed on immovable support, the front end of rotary shaft is gear, and the front half section of rotary shaft is led to
Bearings are crossed, the front half section of rotary shaft is installed with drive end bearing bracket and rear end cap in addition；The second half section excircle of rotary shaft is
Screw thread, the second half section of rotary shaft are connected with nut thread, and nut is connected with movable carriage by fixation kit, and movable carriage slides
It is arranged in side guide plate one, the slider bar that bottom surface guide plate, side guide plate two and top cover surround, the slider bar is located at fixing cutter
In the inner chamber of frame back segment.
The Centreless lathe cutter holder device of the present utility model that processing diameter can be adjusted on a large scale, is further characterized in that：
Seal one is provided between described drive end bearing bracket and rotary shaft, seal is provided between rear end cap and rotary shaft
Two.
Described immovable support sets limited position mechanism.
The beneficial effects of the utility model are, including following aspect：
1) rotary shaft is arranged on immovable support, before fixing rotary shaft by end cap, back-up ring, the shaft shoulder, axle sleeve etc.
Half section.The second half section of rotary shaft is screw nut driven mechanism, and movable carriage is fixed on nut by fixation kit, activity
Knife rest moves with nut, realizes the purpose of a wide range of regulation processing diameter.
2) regulation of processing diameter is realized by the rotation of rotary shaft, when being processed diameter adjustment, rotary shaft is led to
The fixation for crossing the support of bearing, the shaft shoulder, end cap, axle sleeve etc. is rotated by front end gear band is dynamic again.Pass through rotary shaft
Rotation, in rear end, the screw nut driven mechanism of installation also moves therewith, because movable carriage by fixation kit has been fixed on spiral shell
On mother, and movable carriage is limited by guide plate and top cover, so by the rotating nuts of rotary shaft and movable carriage only along leading
Radially moved to plate.Wherein screw nut driven is using the trapezoidal thread transmission in slip screw transmission.
3) it is driven using trapezoidal thread, realizes centering and the transmission that leading screw and nut are can guarantee that to the regulation for processing diameter
Stationarity, because the self-locking of trapezoidal thread, knife rest fixed after the completion of regulation, security and processing when ensure that cutting
The precision of bar.
4) mechanical position limitation mechanism is set, can ensure that knife rest regulation without departing from adjustable range, protects nut and movable blade
Frame, ensure knife rest in normal range of operation.
Brief description of the drawings
Fig. 1 is the structural representation one of the utility model device；
Fig. 2 is the structural representation two of the utility model device；
Fig. 3 is that the utility model device removes the structural representation after immovable support.
In figure, 1. immovable supports, 2. rotary shafts, 3. rear end caps, 4. position-limit mechanisms, 5. nuts, 6. fixation kits, 7. sides are led
To plate one, 8. bottom surface guide plates, 9. side guide plates two, 10. movable carriages, 11. drive end bearing brackets, 12. seals one, 13. bearing ends
Lid, 14. bearings, 15. axle sleeves, 16. seals two, 17. back-up rings.
Embodiment
The utility model is described in detail with reference to the accompanying drawings and detailed description.
Reference picture 1, Fig. 2, Fig. 3, structure of the present utility model are, including immovable support 1, are provided with immovable support 1
Rotary shaft 2, the front end of rotary shaft 2 is gear, and the front half section of rotary shaft 2 is supported by bearing 14, and bearing 14 is provided with supporting
Back-up ring 17, axle sleeve 15, bearing (ball) cover 13, the front half section of rotary shaft 2 are installed with drive end bearing bracket 11 and rear end cap 3 in addition, together
For fixing the front half section of rotary shaft 2, it is set to rotate；Seal is provided between drive end bearing bracket 11 and rotary shaft 2
One 12, seal 2 16 is provided between rear end cap 3 and rotary shaft 2, rotary shaft front half section is by seal 1 and seal two
16 sealings, ensure that it can normal table operation；The second half section excircle of rotary shaft 2 is screw thread, the second half section of rotary shaft 2 and nut
5 threaded connections, by screw nut driven, nut 5 is connected with movable carriage 10 by fixation kit 6, and movable carriage 10 slides
It is arranged in side guide plate 1, the slider bar that bottom surface guide plate 8, side guide plate 29 and top cover surround, the slider bar is positioned at solid
In the inner chamber of the back segment of tool fixing frame 1；Immovable support 1 sets limited position mechanism 4, ensures that movable carriage 10 can be adjusted in normal range (NR)
Section, protect movable carriage and nut.
The course of work of the present utility model is,
When being processed the regulation of diameter, passing through the gear of the front end of transmission rotational axis 2 so that rotary shaft 2 is rotated,
In the rear end of rotary shaft 2, the screw nut driven mechanism of installation also moves therewith, because movable carriage 10 passes through fixation kit 6 and nut
5 connections, and movable carriage 10 is limited by slider bar, so driving movable carriage 10 by the rotation nut 5 of rotary shaft 2
It can only be radially moved along slider bar, the purpose processed diameter and adjusted on a large scale can be realized according to the length of leading screw, realizes and adds
The regulation of work diameter.To prevent from exceeding adjustable range, spacing, guarantee is carried out using maximum displacement of the position-limit mechanism 4 to rotary shaft 2
Movable carriage 10 can be adjusted in normal range (NR), protect movable carriage 10 and nut 5.
The thread type selection of feed screw nut is trapezoidal thread, can reach leading screw and the preferable centering of nut, and pass
It is dynamic steady.
Claims (3)
- A kind of 1. Centreless lathe cutter holder device that can adjust processing diameter on a large scale, it is characterised in that：Including immovable support (1), Rotary shaft (2) is installed on immovable support (1), the front end of rotary shaft (2) is gear, and the front half section of rotary shaft (2) passes through axle (14) support is held, the front half section of rotary shaft (2) is installed with drive end bearing bracket (11) and rear end cap (3) in addition；After rotary shaft (2) Half section of excircle is screw thread, and the second half section of rotary shaft (2) is threadedly coupled with nut (5), and nut (5) is connected by fixation kit (6) Movable carriage (10) is connected to, movable carriage (10) is slidably arranged in side guide plate one (7), bottom surface guide plate (8), side guide plate two (9) and in the slider bar that surrounds of top cover, the slider bar is located in the inner chamber of immovable support (1) back segment.
- 2. the Centreless lathe cutter holder device according to claim 1 that processing diameter can be adjusted on a large scale, it is characterised in that：Institute Seal one (12) is provided between the drive end bearing bracket (11) and rotary shaft (2) stated, is set between rear end cap (3) and rotary shaft (2) There is seal two (16).
- 3. the Centreless lathe cutter holder device according to claim 1 that processing diameter can be adjusted on a large scale, it is characterised in that：Institute The immovable support (1) stated sets limited position mechanism (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720518633.0U CN206824670U (en) | 2017-05-11 | 2017-05-11 | A kind of Centreless lathe cutter holder device that can adjust processing diameter on a large scale |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720518633.0U CN206824670U (en) | 2017-05-11 | 2017-05-11 | A kind of Centreless lathe cutter holder device that can adjust processing diameter on a large scale |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206824670U true CN206824670U (en) | 2018-01-02 |
Family
ID=60770796
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720518633.0U Expired - Fee Related CN206824670U (en) | 2017-05-11 | 2017-05-11 | A kind of Centreless lathe cutter holder device that can adjust processing diameter on a large scale |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206824670U (en) |
-
2017
- 2017-05-11 CN CN201720518633.0U patent/CN206824670U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180102 Termination date: 20180511 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |