CN208662749U - A kind of extension type screw cutter - Google Patents
A kind of extension type screw cutter Download PDFInfo
- Publication number
- CN208662749U CN208662749U CN201821213225.5U CN201821213225U CN208662749U CN 208662749 U CN208662749 U CN 208662749U CN 201821213225 U CN201821213225 U CN 201821213225U CN 208662749 U CN208662749 U CN 208662749U
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- shaft part
- hole section
- radial dimension
- section
- shaft
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- 230000004044 response Effects 0.000 claims abstract description 13
- 230000006835 compression Effects 0.000 claims 2
- 238000007906 compression Methods 0.000 claims 2
- 230000002093 peripheral effect Effects 0.000 claims 1
- 238000003801 milling Methods 0.000 description 9
- 238000000034 method Methods 0.000 description 6
- 230000009471 action Effects 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 238000010079 rubber tapping Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 238000007514 turning Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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Abstract
The utility model discloses a kind of extension type screw cutters, including shank section, knife bar portion and the cutter head portion set gradually along axial direction, the cavity A of shank section includes the first hole section and the second hole section, knife bar portion includes first, two shaft parts, the first hole section and the first shaft part are mutually matched and the two clearance fit；Screw cutter further includes locking pin, elastic reseting part A and elastic reseting part B, the cavity B of first shaft part includes third hole section and the 4th hole section, the locking pin includes third shaft part and the 4th shaft part, third hole section and third shaft part are mutually matched and the two clearance fit, under the reset response power of elastic reseting part A, knife bar portion moves downward so that cutter head portion is held out against on a workpiece, under the reset response power of elastic reseting part B, locking pin is moved out so that orbicule is held out against in the first hole section inner wall；Under external force, knife bar portion overcomes elastic reseting part A, and B reset response power uplink is so that the first shaft part and the first hole section relative motion.
Description
Technical field
The utility model relates to a kind of machining tool, specially a kind of extension type screw cutter.
Background technique
Traditional Screw thread process method predominantly use threading tool cutted thread or using screw tap, screw die craft tapping and
Hitch.With the development of Computerized Numerical Control processing technology, the especially appearance of three-shaft linkage digital-control processing system, add more advanced screw thread
The numerical control milling of work mode --- screw thread is achieved.Thread milling processing is compared with conventional threads processing method, in processing essence
It is not limited by helicitic texture and thread rotary orientation when there is great advantage in terms of degree, processing efficiency, and processing, such as one thread milling machine
The internal and external screw thread of a variety of different rotation directions can be processed in knife.For being not allow for the screw thread of transition button or relief groove structure, using tradition
Method for turning or screw tap, screw die be difficult to process, but using numerical control milling it is very easy to accomplish.In addition, screw cutter is resistance to
Expenditure is more than ten times or even decades of times of screw tap, and in numerical control milling threaded process, to the adjustment pole of diameter of thread size
For convenience, this is difficult to using screw tap, screw die.Due to many advantages of thread milling processing, developed country at present
The production of high-volume screw thread uses milling process widely.
Granted publication is that the Chinese utility model patent of 207508460 U of CN discloses a kind of milling cutter, including fixed link,
Cutter head, milling edge, chip space, screwer, motion bar, spring and knife handle.In above-mentioned technical proposal, motion bar can be in fixed link
Portion moves up and down, and has spring supporting between motion bar and fixed link, and cutter head is moved up and down, so that cutter head can be with
Be close to workpiece, workpiece surface finish and dimensional accuracy can be significantly improved, due between motion bar and fixed link for can be upper and lower
Relative motion, therefore cannot be made as being interference fitted therebetween, when processing hard workpiece, cutter head is easy to shake, can shadow
Ring processing quality.
Summary of the invention
The purpose of the utility model is to provide a kind of extension type screw cutters in initial manufacture, when processing, in elasticity
Under the action of reset components A, guarantee that cutter head portion can be close to workpiece, under the action of elastic reseting part B, guarantees that knife bar portion is held out against
Shank section inner wall, cutter head portion will not shake, and guarantee processing quality, when knife bar portion is moved with respect to shank section to provide buffer function
When, knife bar portion overcomes the reset response power of elastomeric element so that knife bar portion can smooth movement.
In order to achieve the above objectives, the technical solution adopted in the utility model is: a kind of extension type screw cutter, including edge
Shank section, knife bar portion and the cutter head portion axially set gradually,
Wherein, it is stepped hole that the shank section, which is equipped with the cavity A, the cavity A penetrated through with its bottom, including setting up and down
The first hole section and the second hole section, the radial dimension of first hole section is greater than the radial dimension of second hole section, the knife
Bar portion is multi-diameter shaft, and including the first shaft part and the second shaft part setting up and down, the radial dimension of first shaft part is greater than described
The radial dimension of second shaft part, the axially mobile limit of first shaft part are connected in first hole section, and described the
Two shaft parts pass through second hole section and on, lower end connects with first shaft part and the cutter head portion respectively, described first
Hole section and first shaft part is mutually matched and the two clearance fit；
The screw cutter further includes locking pin, elastic reseting part A and elastic reseting part B, first shaft part
It is additionally provided with the cavity B with the perforation of its lateral wall, the cavity B is stepped hole, including the third hole section being arranged inside and outside and the 4th hole
Section, the radial dimension of the third hole section are greater than the radial dimension of the 4th hole section, and the locking pin is multi-diameter shaft, including interior
The third shaft part and the 4th shaft part of outer setting, the radial dimension of the third shaft part are greater than the radial dimension of the 4th shaft part,
The axially mobile limit of third shaft part is connected in the third hole section, and the 4th shaft part passes through the 4th hole
Section and it is interior, outer end connects with the third shaft part and an orbicule respectively, and the third hole section and the third shaft part are mutual
Matching and the two clearance fit
Under the reset response power of elastic reseting part A, the knife bar portion move downward so that the cutter head portion hold out against in
On one workpiece, under the reset response power of elastic reseting part B, the locking pin move out so that the orbicule hold out against in
The first hole section inner wall；
Under external force, the knife bar portion overcomes the elastic reseting part A and elastic reseting part B to reset and makees
Firmly uplink is so that first shaft part and the first hole section relative motion.
In above-mentioned technical proposal, first hole section and first shaft part are mutually matched and in the cylinder just set
Shape, in first hole section and first shaft part, one of them is equipped with the groove vertically extended or along water
Flat at least two grooves being arranged circumferentially, another one are equipped with the fin vertically extended or along horizontal circumferential
At least two fins, the fin being evenly arranged are slidably connected to correspondingly in the groove.
In above-mentioned technical proposal, the groove and the fin are disposed as be evenly arranged along horizontal axis four.
In above-mentioned technical proposal, first hole section and first shaft part are mutually matched and cross section is polygon.
In above-mentioned technical proposal, the polygon include three while or four edges or at five, or six sides.
In above-mentioned technical proposal, the elastic reseting part A is compressed spring A, and the knife bar portion further includes and described the
One shaft part the 5th shaft part setting up and down, the radial dimension of the 5th shaft part are less than the radial dimension of first shaft part, institute
State the lower end compressed spring A and first shaft part against and be sheathed on the 5th shaft part and be limited in first hole section
In.
In above-mentioned technical proposal, the elastic reseting part B is compressed spring, and the locking pin further includes and the third
The 6th shaft part that shaft part is arranged inside and outside, the radial dimension of the 6th shaft part is less than the radial dimension of the third shaft part, described
The outer end compressed spring B and the third shaft part against and be sheathed on the 6th shaft part and be limited in the third hole section.
In above-mentioned technical proposal, first hole section is set in the shank section, and it is detachable that second hole section is set to one
End cap A on.
In above-mentioned technical proposal, the third hole section is set in the knife bar portion, and it is detachable that the 4th hole section is set to one
End cap B on.
Since above-mentioned technical proposal is used, the utility model has the advantage that the utility model compared with prior art
Disclosed extension type screw cutter when processing, under the action of elastic reseting part A, guarantees that cutter head portion can be close to workpiece,
Under the action of elastic reseting part B, guaranteeing that knife bar portion holds out against shank section inner wall, cutter head portion will not shake, guarantee processing quality, when
When knife bar portion is moved with respect to shank section to provide buffer function, knife bar portion overcomes the reset response power of elastomeric element so that knife bar portion
It can smooth movement.
Detailed description of the invention
Fig. 1 is longitudinal schematic cross-sectional view of extension type screw cutter disclosed by the utility model；
Fig. 2 is the partial enlarged view in Fig. 1 at A.
Specific embodiment
The utility model is further described in conjunction with accompanying drawings and embodiments:
Embodiment one
Referring to Fig. 1 and Fig. 2, as shown in legend therein, a kind of extension type screw cutter, including set gradually along axial direction
Shank section 10, knife bar portion 20 and cutter head portion 30,
Wherein, shank section 10 is equipped with the cavity A penetrated through with its bottom, and cavity A is stepped hole, including setting up and down first
Hole section 11 and the second hole section 12, the radial dimension of the first hole section 11 are greater than the radial dimension of the second hole section 12, and knife bar portion 20 is rank
Terraced axis, including the first shaft part 21 and the second shaft part 22 setting up and down, the radial dimension of the first shaft part 21 be greater than the second shaft part
22 radial dimension, the axially mobile limit of the first shaft part 21 are connected in the first hole section 11, and the second shaft part 22 passes through the
Two hole sections 12 and on, lower end connects with the first shaft part 21 and cutter head portion 30 respectively, and the first hole section 11 and the first shaft part 21 are mutually
Matching and the two clearance fit；
Above-mentioned screw cutter further includes locking pin 40, elastic reseting part A50 and elastic reseting part B60, first axle
Section 21 is additionally provided with the cavity B with the perforation of its lateral wall, and cavity B is stepped hole, including the third hole section 21a being arranged inside and outside and the 4th
The radial dimension of hole section 21b, third hole section 21a are greater than the radial dimension of the 4th hole section 21b, and locking pin 40 is multi-diameter shaft, including
The third shaft part 41 and the 4th shaft part 42 being arranged inside and outside, the radial dimension of third shaft part 41 are greater than the radial ruler of the 4th shaft part 42
Very little, the axially mobile limit of third shaft part 41 is connected in third hole section 21a, and the 4th shaft part 42 passes through the 4th hole section 21b
And interior, outer end connects with third shaft part 41 and an orbicule 70 respectively, and third hole section 21a and third shaft part 41 are mutually matched simultaneously
And the two clearance fit
Under the reset response power of elastic reseting part A50, knife bar portion 20 is moved downward so that cutter head portion 30 is held out against in one
On workpiece, under the reset response power of elastic reseting part B60, locking pin 40 is moved out so that orbicule 70 is held out against in first
11 inner wall of hole section；
Under external force, knife bar portion 20 overcomes the reset response of elastic reseting part A50 and institute elastic reseting part B60
Power uplink is so that 11 relative motion of the first shaft part 21 and the first hole section.
In a kind of embodiment, the first hole section 11 and the first shaft part 21 are mutually matched and cylindric in just setting, the
In one hole section 11 and the first shaft part 21, one of them is equipped with the groove vertically extended or along horizontal circumferential uniform
At least two grooves of arrangement, what another one was arranged circumferentially equipped with the fin vertically extended or along level
At least two fins, the fin are slidably connected to correspondingly in the groove.
In a kind of embodiment, groove and fin are disposed as be evenly arranged along horizontal axis four.
In a kind of embodiment, the first hole section 11 and the first shaft part 21 is mutually matched and cross section is polygon.
In a kind of embodiment, polygon include three while or four edges or at five, or six sides.
In a kind of embodiment, elastic reseting part A50 is compressed spring A, and knife bar portion 20 further includes and the first shaft part 21
5th shaft part 23 setting up and down, the radial dimension of the 5th shaft part 23 less than the first shaft part 21 radial dimension, under compressed spring A
End and the first shaft part 21 against and be sheathed on the 5th shaft part 23 and be limited in the first hole section 11.
In a kind of embodiment, elastic reseting part B60 is compressed spring, locking pin 40 further include in third shaft part 41
6th shaft part 43 of outer setting, the radial dimension of the 6th shaft part 43 are less than the radial dimension of third shaft part 41, the outer end compressed spring B
With third shaft part 41 against and be sheathed on the 6th shaft part 43 and be limited in third hole section 21a.
In a kind of embodiment, the first hole section 11 is set in shank section 10, and the second hole section 12 is set to a detachable end
On A13.
In a kind of embodiment, third hole section 21a is set in knife bar portion 20, and the 4th hole section 21b is set to a dismountable end
It covers on B24.
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 (9)
1. a kind of extension type screw cutter, including shank section, knife bar portion and the cutter head portion set gradually along axial direction,
It is characterized in that, the shank section is equipped with the cavity A penetrated through with its bottom, the cavity A is stepped hole, including is above divided into
The first hole section and the second hole section set, the radial dimension of first hole section is greater than the radial dimension of second hole section, described
Knife bar portion is multi-diameter shaft, and including the first shaft part and the second shaft part setting up and down, the radial dimension of first shaft part is greater than institute
The radial dimension of the second shaft part is stated, the axially mobile limit of the first shaft part is connected in first hole section, described
Second shaft part pass through second hole section and on, lower end connects with first shaft part and the cutter head portion respectively, described the
One hole section and first shaft part is mutually matched and the two clearance fit；
The screw cutter further includes that locking pin, elastic reseting part A and elastic reseting part B, first shaft part are also set
There is the cavity B with the perforation of its lateral wall, the cavity B is stepped hole, including the third hole section and the 4th hole section being arranged inside and outside, institute
The radial dimension for stating third hole section is greater than the radial dimension of the 4th hole section, and the locking pin is multi-diameter shaft, including interior peripheral hardware
The third shaft part and the 4th shaft part set, the radial dimension of the third shaft part is greater than the radial dimension of the 4th shaft part, described
The axially mobile limit of third shaft part is connected in the third hole section, and the 4th shaft part passes through the 4th hole section simultaneously
And it is interior, outer end connects with the third shaft part and an orbicule respectively, and the third hole section and the third shaft part are mutually matched
And the two clearance fit
Under the reset response power of elastic reseting part A, the knife bar portion is moved downward so that the cutter head portion holds out against Yu Yigong
On part, under the reset response power of elastic reseting part B, the locking pin is moved out so that the orbicule is held out against in described
First hole section inner wall；
Under external force, the knife bar portion overcomes the elastic reseting part A and the elastic reseting part B reset response power
Uplink is so that first shaft part and the first hole section relative motion.
2. extension type screw cutter according to claim 1, which is characterized in that first hole section and the first axle
Section be mutually matched and in just setting it is cylindric, in first hole section and first shaft part, one of them be equipped with along upper
The groove that lower direction extends or at least two grooves being arranged circumferentially along level, another one are equipped with along the vertical direction
One fin of extension is slidably connected correspondingly along at least two fins, the fin that level is arranged circumferentially
In the groove.
3. extension type screw cutter according to claim 2, which is characterized in that the groove and the fin are respectively provided with
For four be evenly arranged along horizontal axis.
4. extension type screw cutter according to claim 1, which is characterized in that first hole section and the first axle
Section is mutually matched and cross section is polygon.
5. extension type screw cutter according to claim 4, which is characterized in that the polygon includes three sides or four
While or at five, or six sides.
6. extension type screw cutter according to claim 1, which is characterized in that the elastic reseting part A is compression
Spring A, the knife bar portion further include fiveth shaft part setting up and down with first shaft part, the radial dimension of the 5th shaft part
Less than the radial dimension of first shaft part, the lower end the compressed spring A and first shaft part against and be sheathed on described the
On five shaft parts and it is limited in first hole section.
7. extension type screw cutter according to claim 1, which is characterized in that the elastic reseting part B is compression
Spring, the locking pin further include the 6th shaft part being arranged inside and outside with the third shaft part, the radial dimension of the 6th shaft part
Less than the radial dimension of the third shaft part, the outer end the compressed spring B and the third shaft part against and be sheathed on described the
On six shaft parts and it is limited in the third hole section.
8. extension type screw cutter according to claim 1, which is characterized in that first hole section is set to the knife handle
In portion, second hole section is set on a detachable end A.
9. extension type screw cutter according to claim 1, which is characterized in that the third hole section is set to the knife bar
In portion, the 4th hole section is set on a detachable end B.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821213225.5U CN208662749U (en) | 2018-07-30 | 2018-07-30 | A kind of extension type screw cutter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821213225.5U CN208662749U (en) | 2018-07-30 | 2018-07-30 | A kind of extension type screw cutter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208662749U true CN208662749U (en) | 2019-03-29 |
Family
ID=65832056
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821213225.5U Expired - Fee Related CN208662749U (en) | 2018-07-30 | 2018-07-30 | A kind of extension type screw cutter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208662749U (en) |
-
2018
- 2018-07-30 CN CN201821213225.5U patent/CN208662749U/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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190329 |