CN208628444U - A kind of direct type main shaft pull-rod nut locking mode improvement device - Google Patents
A kind of direct type main shaft pull-rod nut locking mode improvement device Download PDFInfo
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- CN208628444U CN208628444U CN201821220976.XU CN201821220976U CN208628444U CN 208628444 U CN208628444 U CN 208628444U CN 201821220976 U CN201821220976 U CN 201821220976U CN 208628444 U CN208628444 U CN 208628444U
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- pull
- rod nut
- rod
- main shaft
- threaded hole
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Abstract
The utility model discloses a kind of direct type main shaft pull-rod nut locking modes to improve device, including pull rod and pull-rod nut, the end of pull rod is equipped with pull-rod nut, and pull rod insertion is arranged in pull-rod nut, and the side of pull-rod nut is equipped with threaded hole, the inside of threaded hole is equipped with tight fixed bolt, tight fixed bolt insertion is arranged in threaded hole, and pull-rod nut is fixedly connected with pull rod by tight fixed bolt, has locking excellent, the advantages that avoiding screw thread from loosening, broach force caused to decline.
Description
Technical field
The utility model relates to locking device technical fields, are especially a kind of direct type main shaft pull-rod nut locking mode
Improve device.
Background technique
Direct type main shaft pull rod and pull-rod nut are usually to be connected through a screw thread, and place compression several groups dish between the two
Piece compresses disk to generate broach force (chucking power of the main shaft to process tool).But because threaded line is that have a bit
Lift angle, if the frictional force in threaded line is insufficient under disc pressure, screw thread will be loosened, and cause broach force to decline, more seriously
Some main shafts that will lead to can not clamp cutter, when screw thread loosens to a certain extent.If such case occurs, main shaft is just
Processing, then caused by consequence will be hardly imaginable: light then tool-holder holding force is insufficient, generates vibration, shape under cutting force effect
Cheng Zhenwen influences processing quality, in then cutter loosen, main shaft rotation centrifugal force effect under, generate uncontrollable damage, sternly
Cutter is possible to directly loosen if weight, flies out from main shaft, and equally under the centrifugal force effect of main shaft rotation, generation is difficult to imagine
Accident.
Therefore, the analysis found that, existing direct type main shaft pull-rod nut locking mode improve device there are it is following not
Foot: if the frictional force in threaded line is insufficient under disc pressure, screw thread will be loosened, and broach force is caused to decline, and more serious one
Will lead to can not main shaft can not clamp cutter.
Utility model content
Therefore, in order to solve above-mentioned deficiency, the utility model provides a kind of direct type main shaft pull-rod nut locking side herein
Formula improves device, has locking excellent, the advantages that avoiding screw thread from loosening, broach force is caused to decline.
The utility model is realized in this way constructing a kind of direct type main shaft pull-rod nut locking mode improvement device, packet
Pull rod and pull-rod nut are included, the end of pull rod is equipped with pull-rod nut, and pull rod insertion is arranged in pull-rod nut, pull-rod nut
Side be equipped with threaded hole, the inside of threaded hole is equipped with tight fixed bolt, and tight fixed bolt insertion is arranged in threaded hole, and pull rod
Nut is fixedly connected with pull rod by tight fixed bolt.
As an improvement of the above technical solution, threaded hole is specially three, threaded hole on pull-rod nut in uniform ring around
Distribution.By the triangle unsymmetric structure of the threaded hole of setting, locking any tight fixed bolt is all that the screw thread on pull rod rubs
The one side in the thread friction face of pull-rod nut is pushed in wiping face to, is offset without positive opposite coupling mechanism force, in the work of lead angle
The fastening force of 180 degree screw thread cornerite is increased with its lower big appointment, thus locking effect is fairly obvious.
As an improvement of the above technical solution, the end of tight fixed bolt is equipped with copper material, and copper material is inlayed setting and worked as in threaded hole
In.By setting copper material to guarantee that pull-rod nut comes into full contact with pull rod tooth form, to obtain maximum frictional force.
As an improvement of the above technical solution, the lateral surface of pull rod is equipped with disk.By compressing disk to generate broaching tool
Power forms main shaft to the chucking power of process tool.
The utility model provides a kind of direct type main shaft pull-rod nut locking mode herein and improves device by improving, and existing
There is direct type main shaft pull-rod nut locking mode to improve device to compare, having the advantages that has locking excellent, avoids spiral shell
The advantages that line loosens, and broach force is caused to decline embodies are as follows:
Advantage 1: threaded hole is specially three, and threaded hole is on pull-rod nut in uniform ring around distribution.Pass through the spiral shell of setting
The triangle unsymmetric structure of pit, locking any tight fixed bolt is all to push the thread friction face on pull rod to pull-rod nut
The one side in thread friction face is offset without positive opposite coupling mechanism force, its big appointment increases 180 under the action of lead angle
The fastening force of screw thread cornerite is spent, thus locking effect is fairly obvious.
Advantage 2: the end of tight fixed bolt is equipped with copper material, and copper material, which is inlayed, to be arranged in threaded hole.By setting copper material with
Guarantee that pull-rod nut comes into full contact with pull rod tooth form, to obtain maximum frictional force.
Advantage 3: the lateral surface of pull rod is equipped with disk.By being compressed to disk to generate broach force, main shaft is formed to processing
The chucking power of cutter.
Detailed description of the invention
Fig. 1 is that a kind of direct type main shaft pull-rod nut locking mode of the utility model improves apparatus structure schematic diagram；
Fig. 2 is the cross-sectional structural representation that a kind of direct type main shaft pull-rod nut locking mode of the utility model improves device
Figure.
Serial number as shown in the figure: pull rod 1, disk 2, pull-rod nut 3, tight fixed bolt 4, copper material 5 and threaded hole 6.
Specific embodiment
The utility model is described in detail below in conjunction with attached drawing 1- Fig. 2, to the skill in the utility model embodiment
Art scheme is clearly and completely described, it is clear that and the described embodiments are only a part of the embodiments of the utility model, and
The embodiment being not all of.Based on the embodiments of the present invention, those of ordinary skill in the art are not making creativeness
Every other embodiment obtained, fall within the protection scope of the utility model under the premise of labour.
The utility model provides a kind of direct type main shaft pull-rod nut locking mode improvement device by improving herein, such as schemes
Shown in 1- Fig. 2, it can be practiced as follows；Including pull rod 1 and pull-rod nut 3, the end of pull rod 1 is equipped with pull rod spiral shell
Mother 3, and the insertion of pull rod 1 is arranged in pull-rod nut 3, the side of pull-rod nut 3 is equipped with threaded hole 6, and the inside of threaded hole 6 is set
There is tight fixed bolt 4, the insertion of tight fixed bolt 4 is arranged in threaded hole 6, and pull-rod nut 3 and pull rod 1 are solid by tight fixed bolt 4
Fixed connection.
A kind of direct type main shaft pull-rod nut locking mode improvement device, threaded hole 6 are specially three, and threaded hole 6 is being drawn
In uniform ring around distribution on stem nut 3.By the triangle unsymmetric structure of the threaded hole 6 of setting, any tight fixed bolt 4 is locked
It is all one side that the thread friction face on pull rod 1 is pushed to the thread friction face of pull-rod nut 3, it will without positive opposite coupling mechanism force
It is offset, its big appointment increases the fastening force of 180 degree screw thread cornerite under the action of lead angle, thus locking effect ten is clearly demarcated
It is aobvious.
A kind of direct type main shaft pull-rod nut locking mode improvement device, the end of tight fixed bolt 4 are equipped with copper material 5, copper material 5
It inlays and is arranged in threaded hole 6.By setting copper material 5 to guarantee that pull-rod nut 3 comes into full contact with 1 tooth form of pull rod, to obtain
Maximum frictional force.
A kind of direct type main shaft pull-rod nut locking mode improvement device, the lateral surface of pull rod 1 are equipped with disk 2.By right
The compression of disk 2 forms main shaft to the chucking power of process tool to generate broach force.
A kind of direct type main shaft pull-rod nut locking mode improves the working principle of device: in pull-rod nut 3 and pull rod 1
Locking section is radially making a call to 3 threaded holes 6, locks tight fixed bolt 4, and copper material 5 is inlayed in bottom, and together with the screw thread in pull-rod nut 3
Turning forming, after pull rod 1 locks 3 specific position of pull-rod nut according to broaching tool force request, by the tight fixed bolt 4 on pull-rod nut 3
It is locked, have benefited from the triangle unsymmetric structure of threaded hole 6, locking any tight fixed bolt 4 is all by the thread friction on pull rod 1
The one side in the thread friction face of pull-rod nut 3 is pushed in face to, is offset without positive opposite coupling mechanism force, in the effect of lead angle
Its lower big appointment increases the fastening force of 180 degree screw thread cornerite, thus locking effect is fairly obvious.
In summary；Direct type main shaft pull-rod nut locking mode described in the utility model improves device, with existing straight knot
Formula main shaft pull-rod nut locking mode, which improves device and compares, has locking excellent, avoids screw thread from loosening, causes under broach force
The advantages that drop.
The foregoing description of the disclosed embodiments can be realized professional and technical personnel in the field or using originally practical new
Type.Various modifications to these embodiments will be readily apparent to those skilled in the art, and determine herein
The General Principle of justice can be realized in other embodiments without departing from the spirit or scope of the present utility model.Cause
This, the present invention will not be limited to the embodiments shown herein, and is to fit to and principles disclosed herein
The widest scope consistent with features of novelty.
Claims (4)
1. a kind of direct type main shaft pull-rod nut locking mode improves device, including pull rod (1) and pull-rod nut (3), feature
Be: the end of the pull rod (1) is equipped with pull-rod nut (3), and the pull rod (1) insertion is arranged in pull-rod nut (3),
The side of the pull-rod nut (3) is equipped with threaded hole (6), and the inside of the threaded hole (6) is equipped with tight fixed bolt (4), described tight
Determine bolt (4) insertion to be arranged in threaded hole (6), and the pull-rod nut (3) and pull rod (1) pass through the tight fixed bolt
(4) it is fixedly connected.
2. a kind of direct type main shaft pull-rod nut locking mode improves device according to claim 1, it is characterised in that: described
Threaded hole (6) is specially three, and the threaded hole (6) is on pull-rod nut (3) in uniform ring around distribution.
3. a kind of direct type main shaft pull-rod nut locking mode improves device according to claim 1, it is characterised in that: described
The end of tight fixed bolt (4) is equipped with copper material (5), and the copper material (5), which is inlayed, to be arranged in threaded hole (6).
4. a kind of direct type main shaft pull-rod nut locking mode improves device according to claim 1, it is characterised in that: described
The lateral surface of pull rod (1) is equipped with disk (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821220976.XU CN208628444U (en) | 2018-07-31 | 2018-07-31 | A kind of direct type main shaft pull-rod nut locking mode improvement device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821220976.XU CN208628444U (en) | 2018-07-31 | 2018-07-31 | A kind of direct type main shaft pull-rod nut locking mode improvement device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208628444U true CN208628444U (en) | 2019-03-22 |
Family
ID=65741247
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821220976.XU Active CN208628444U (en) | 2018-07-31 | 2018-07-31 | A kind of direct type main shaft pull-rod nut locking mode improvement device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208628444U (en) |
-
2018
- 2018-07-31 CN CN201821220976.XU patent/CN208628444U/en active Active
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