CN210412917U - Front disc structure of die head - Google Patents
Front disc structure of die head Download PDFInfo
- Publication number
- CN210412917U CN210412917U CN201921213262.0U CN201921213262U CN210412917U CN 210412917 U CN210412917 U CN 210412917U CN 201921213262 U CN201921213262 U CN 201921213262U CN 210412917 U CN210412917 U CN 210412917U
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- China
- Prior art keywords
- curve section
- chip removal
- die head
- hole
- cutter
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- Withdrawn - After Issue
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- 230000008093 supporting effect Effects 0.000 claims abstract description 11
- 230000007704 transition Effects 0.000 claims description 6
- 238000009795 derivation Methods 0.000 claims description 2
- 238000003754 machining Methods 0.000 abstract description 5
- 230000006978 adaptation Effects 0.000 abstract description 2
- 238000007599 discharging Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 230000004308 accommodation Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
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- Cutting Tools, Boring Holders, And Turrets (AREA)
Abstract
The utility model relates to a thread machining tool. A front disc structure of a die head comprises a front disc main body, wherein cutter fixing grooves are uniformly distributed on the front disc main body, a through hole is formed in the center of the front disc main body, the hole wall of the through hole is formed by a plurality of sections of curves, the cutter fixing grooves are used as boundaries, one side of each cutter fixing groove is a supporting curve section, and the other side of each cutter fixing groove is a chip removal guiding curve section; the extension end of the cutter is provided with a chip removal curve section which is connected with the chip removal lead-out curve section. The utility model provides a front disc structure of a die head, which has simple structure, can adapt to pipe bodies with different diameters for threading, can increase flexibility and increase the adaptation requirement; the threading die solves the technical problems that when threading is carried out on the die head in the prior art, the threading die head has more requirements on the diameter of a tube body, the applicable range is small, the service life of the die head is short, and the rejection rate is high.
Description
Technical Field
The utility model relates to a thread machining tool especially relates to a front disc structure of die head.
Background
The front disc is a female part for installing threading cutters of the threading machine and is a core part in the whole machine, and the threading machine has more specifications, so that the threading of pipe fittings with different sizes is met. Generally, the maximum threading size of each specification of threading machine is the so-called specification of the product, and particularly, the front disc is a tool bearing component, so that the limitation is more definite, generally, the front disc comprises a front disc main body, a through hole in the center of the front disc main body is used for accommodating a pipe to pass through, tool fixing grooves are uniformly distributed on the front disc main body, tools are installed in the tool fixing grooves, and the tools extend out of the tool fixing grooves to process the pipe. As in the Chinese patent: the front disc (CN 200920300304.4) of the die head comprises a front disc main body, wherein a through hole is arranged at the center of the front disc main body, a supporting part is arranged at one end of the front disc main body, a cutter hole is arranged in the front disc main body, a fixing part is arranged at the other end of the front disc main body, and a handle fixing seat is arranged on the side surface of the front disc main body. However, this structure is only capable of processing the same size of pipe, and different equipment is still required for processing different sizes of pipe.
Disclosure of Invention
The utility model provides a front disc structure of a die head, which has simple structure, can adapt to pipe bodies with different diameters for threading, can increase flexibility and increase the adaptation requirement; the threading die solves the technical problems that when threading is carried out on the die head in the prior art, the threading die head has more requirements on the diameter of a tube body, the applicable range is small, the service life of the die head is short, and the rejection rate is high.
The above technical problem of the present invention is solved by the following technical solutions: a front disc structure of a die head comprises a front disc main body, wherein cutter fixing grooves are uniformly distributed on the front disc main body, a through hole is formed in the center of the front disc main body, the cutter fixing grooves are arranged in the radial direction, one end of each cutter fixing groove is a cutter extending end, the cutter extending end faces the through hole, the hole wall of each through hole is formed by a plurality of sections of curves, the cutter fixing grooves are used as boundaries, one side of each cutter fixing groove is a supporting curve section, and the other side of each cutter fixing groove is a chip removal guiding curve section; the extension end of the cutter is provided with a chip removal curve section, the chip removal curve section is connected with a chip removal lead-out curve section, the distance from the support curve section to the center of the through hole is R1, the distance from the chip removal lead-out curve section to the center of the through hole is R2, the distance from the chip removal curve section to the center of the through hole is R3, and R3 is greater than R2 and greater than R1. The support curve section is the position where the diameter of the through hole wall is the smallest, namely the largest diameter capable of passing through the through hole. The chip removal lead-out curve section is connected with the chip removal curve section to help the cutter to discharge metal chips after threading. The chip removal curve section is arranged on the cutter fixing groove, so that the cutter can move outwards to meet the requirement of machining of the large-diameter pipe fitting, and chip removal is performed by using the chip removal curve section. The cutter fixed slots are four and are uniformly distributed on the front disc main body. The key of the front disc machining specification is the drift diameter size of the through hole, namely the maximum passing diameter of the whole front disc, and the size is as follows: the outer diameter of the workpiece is added with the height of 2 bare cutters and then the minimum chip removal size. Therefore, the drift diameter of a 2-inch front disc is basically about 80mm, the drift diameter needs to be enlarged to 83mm in order to process a 3-inch pipe simultaneously, and during processing, a cutter needs to be withdrawn outwards from a cutter fixing groove so as to pass through the pipe, so that scraps generated during processing of the cutter cannot be discharged. Therefore, a chip ejection curve section is expanded outwards on the tool fixing groove. Therefore, the included angle between the excessive inclination of the front end of the cutter and the central line is increased from 45 degrees to 47.5 degrees, the swept point of the arc chip removal part moves backwards, the front tangent point is unchanged, the chip starting point is high, the strength of the part is unchanged, and the center of the chip sliding groove moves backwards, so that a 2-inch front disc and a 3-inch front disc can be processed at the die head.
Preferably, the chip removal curve segment is in a parabola shape, one end of the chip removal curve segment is started from the end part of the cutter fixing groove, and the other end of the chip removal curve segment is connected with the chip removal leading-out curve segment through arc transition. The front tangent point of the chip removal curve segment is unchanged, and the chip removal curve segment is pulled outwards to ensure the chip removal space. The curve transition, the chip removal is smooth and easy, increases the chip removal accommodation space.
Preferably, the distance between the starting end of the chip discharging curve section and the highest position of the chip discharging curve section is not less than 4 mm. The chip removal curve section extends outwards, so that the chip removal space is increased, the chip removal is smoother, and the processing flexibility is improved.
Preferably, the chip removal lead-out curve segment is in transition connection with the supporting curve segment through an arc line.
Preferably, the end point of the extending end of the cutter is positioned at the end part of the supporting curve section. The end parts of the supporting curve sections and the cutter fixing grooves are connected, so that the supporting effect is good and the cutter is convenient to machine when a pipe fitting is machined.
Preferably, the radian of the chip removal derivation curve section is pi/4-pi/3, and the radian of the support curve section is pi/6-pi/4. The chip can be conveniently removed.
Therefore, the utility model discloses a front plate structure of die head possesses following advantage: the die head has the advantages of simple structure, wide application range, long service life and first rejection rate, and can be suitable for processing pipe fittings with different diameters; meanwhile, the front disc structure has good chip removal effect and high flexibility.
Drawings
Fig. 1 is a front view of a front plate structure of a die head according to the present invention.
Fig. 2 is a rear view of fig. 1.
Fig. 3 is an enlarged schematic view at a in fig. 2.
Detailed Description
The technical solution of the present invention is further specifically described below by way of examples and with reference to the accompanying drawings.
Example (b):
as shown in fig. 1, 2 and 3, a front disc structure of a die head comprises a front disc main body 2, wherein the front disc main body 2 is circular, and a through hole 3 is formed in the center of the front disc main body 2. A fixed seat 1 is integrally formed on one side of the front disc main body 2 and used for installing the front disc main body on a threading machine.
Four evenly distributed cutter fixing grooves 4 are formed in the rear side face of the front disc main body 2, one end of each cutter fixing groove 4 is a cutter extending end 5, and the cutter extending end 5 faces the through hole 3 in the center. The cutter extending end 5 digs a blank outwards for discharging chips when the cutter extends out of the cutter fixing groove for machining.
The pore wall of through-hole 3 comprises the multistage curve to cutter fixed slot 4 is the limit, and one side of cutter fixed slot 4 is for supporting curve section 6, and the opposite side of cutter fixed slot derives curve section 8 for the chip removal, and the chip removal is derived curve section 8 and is passed through pitch arc transitional coupling with support curve section 6. The end point of the cutter extension end 5 is positioned at the end part of the support curve section 6, the support curve section 6 is an arc, and the radius of the arc where the support curve section 6 is positioned is 83 cm. The tool extension end 5 is provided with a chip removal curve section 7, the chip removal curve section 7 is in a parabola shape, one end of the chip removal curve section 7 starts from the end part of the tool fixing groove, the other end of the chip removal curve section 7 is connected with a chip removal leading-out curve section 8 through arc transition, and the distance between the starting end of the chip removal curve section 7 and the highest position of the chip removal curve section 7 is not less than 4 mm. The distance from the supporting curve section to the center of the through hole is R1, the distance from the chip removal leading-out curve section to the center of the through hole is R2, the distance from the chip removal curve section to the center of the through hole is R3, and R3 is greater than R2 is greater than R1.
Claims (6)
1. The utility model provides a preceding dish structure of die head, includes the preceding dish main part, is equipped with the cutter fixed slot of equipartition on the preceding dish body, and the main part center of the preceding dish is equipped with through-hole, its characterized in that: the tool fixing groove is radially arranged, one end of the tool fixing groove is a tool extending end, the tool extending end faces the through hole, the hole wall of the through hole is formed by a plurality of sections of curves, the tool fixing groove is used as a boundary, one side of the tool fixing groove is a supporting curve section, and the other side of the tool fixing groove is a chip removal guiding curve section; the extension end of the cutter is provided with a chip removal curve section, the chip removal curve section is connected with a chip removal lead-out curve section, the distance from the support curve section to the center of the through hole is R1, the distance from the chip removal lead-out curve section to the center of the through hole is R2, the distance from the chip removal curve section to the center of the through hole is R3, and R3 is greater than R2 and greater than R1.
2. The front plate structure of a die head according to claim 1, wherein: the chip removal curve section is in a parabola shape, one end of the chip removal curve section is started by the end part of the cutter fixing groove, and the other end of the chip removal curve section is connected with the chip removal leading-out curve section through arc transition.
3. The front plate structure of a die head according to claim 2, wherein: the distance between the starting end of the chip removal curve section and the highest position of the chip removal curve section is not less than 4 mm.
4. A front plate structure of a die head according to claim 1, 2 or 3, wherein: the chip removal lead-out curve segment is in transition connection with the support curve segment through an arc line.
5. A front plate structure of a die head according to claim 1, 2 or 3, wherein: the end point of the extending end of the cutter is positioned at the end part of the supporting curve section.
6. A front plate structure of a die head according to claim 1, 2 or 3, wherein: the radian of the chip removal derivation curve section is pi/4-pi/3, and the radian of the support curve section is pi/6-pi/4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921213262.0U CN210412917U (en) | 2019-07-30 | 2019-07-30 | Front disc structure of die head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921213262.0U CN210412917U (en) | 2019-07-30 | 2019-07-30 | Front disc structure of die head |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210412917U true CN210412917U (en) | 2020-04-28 |
Family
ID=70383637
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921213262.0U Withdrawn - After Issue CN210412917U (en) | 2019-07-30 | 2019-07-30 | Front disc structure of die head |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210412917U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110315151A (en) * | 2019-07-30 | 2019-10-11 | 杭州浙西机械有限公司 | A kind of preceding dish structure of die-head |
-
2019
- 2019-07-30 CN CN201921213262.0U patent/CN210412917U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110315151A (en) * | 2019-07-30 | 2019-10-11 | 杭州浙西机械有限公司 | A kind of preceding dish structure of die-head |
| CN110315151B (en) * | 2019-07-30 | 2024-06-04 | 杭州浙西机械有限公司 | Front disc structure of die head |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20200428 Effective date of abandoning: 20240604 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20200428 Effective date of abandoning: 20240604 |
|
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |