CN112025208A - Threaded sleeve type tiger head tool row and machining method - Google Patents
Threaded sleeve type tiger head tool row and machining method Download PDFInfo
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- CN112025208A CN112025208A CN201910482717.7A CN201910482717A CN112025208A CN 112025208 A CN112025208 A CN 112025208A CN 201910482717 A CN201910482717 A CN 201910482717A CN 112025208 A CN112025208 A CN 112025208A
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- cutter
- threaded
- cylindrical pin
- semi
- hole
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- 238000003754 machining Methods 0.000 title claims abstract description 23
- 241000282376 Panthera tigris Species 0.000 title claims abstract description 19
- 238000000034 method Methods 0.000 title claims abstract description 5
- 238000003801 milling Methods 0.000 claims description 9
- 238000003672 processing method Methods 0.000 claims description 5
- 238000005242 forging Methods 0.000 claims description 3
- 238000000227 grinding Methods 0.000 claims description 3
- 238000010791 quenching Methods 0.000 claims description 3
- 230000000171 quenching effect Effects 0.000 claims description 3
- 238000005496 tempering Methods 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 239000000203 mixture Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B27/00—Tools for turning or boring machines; Tools of a similar kind in general; Accessories therefor
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Milling Processes (AREA)
Abstract
A threaded tiger head tool row and a machining method belong to the technical field of tools and solve the problems that the tiger head tool row is scrapped integrally, short in service life and high in production cost due to frequent work of a tensioning threaded hole of the conventional tiger head tool row. The invention comprises a cutter row body, a thread sleeve, two cylindrical pins and a plurality of set screws; the cutter row body is provided with a cutter mounting groove, a threaded hole and a plurality of cutter fixing threaded holes, a set screw is arranged on each cutter fixing threaded hole, two first semi-cylindrical pin holes are formed in the threaded hole in a processing mode, threads are formed in the inner surface and the outer surface of the threaded sleeve in a processing mode, two second semi-cylindrical pin holes are formed in the outer surface of the threaded sleeve in a processing mode, the threaded sleeve is screwed into the threaded hole, each first semi-cylindrical pin hole is matched with each second semi-cylindrical pin hole to form a cylindrical pin hole, and a cylindrical pin is arranged in each cylindrical pin hole. The invention is suitable for processing the steam turbine rotor.
Description
Technical Field
The invention belongs to the technical field of cutters, and particularly relates to a threaded sleeve type tiger head cutter row and a machining method.
Background
The tiger head tool row is a special tool for turning a steam turbine rotor by a rotor lathe, the tool row is provided with a special positioning and connecting structure, the design precision is high, a threaded hole of the existing tiger head tool row is a tensioning screw hole, the tool row is scrapped integrally due to frequent work, the service life is short, and the processing cost in the production process is high.
Disclosure of Invention
The invention provides a threaded tiger head tool row and a processing method thereof, aiming at solving the problems that the whole tiger head tool row is scrapped due to frequent work of tensioning threaded holes of the existing tiger head tool row, the service life is short, and the production cost is increased.
The technical scheme adopted by the invention for solving the technical problems is as follows:
the first scheme is as follows: a threaded sleeve type tiger head tool block comprises a tool block body, a threaded sleeve, two cylindrical pins and a plurality of fastening screws;
the cutter row body is provided with a cutter mounting groove, a threaded hole and a plurality of cutter fixing threaded holes, a set screw is arranged on each cutter fixing threaded hole, two first semi-cylindrical pin holes are formed in the threaded hole in a processing mode, threads are formed in the inner surface and the outer surface of the threaded sleeve in a processing mode, two second semi-cylindrical pin holes are formed in the outer surface of the threaded sleeve in a processing mode, the threaded sleeve is screwed into the threaded hole, each first semi-cylindrical pin hole is matched with each second semi-cylindrical pin hole to form a cylindrical pin hole, and a cylindrical pin is arranged in each cylindrical pin hole.
Scheme II: the cutter row body processing method comprises the following steps:
firstly, forging a blank;
secondly, roughly milling according to the maximum size of the shape of the cutter row body, and reserving machining allowance;
thirdly, quenching and tempering;
fourthly, performing semi-finish milling according to the maximum size of the shape of the cutter row body, and reserving machining allowance;
grinding according to the maximum size of the shape of the cutter row body to the size required by the drawing;
sixthly, milling according to the appearance of the cutter row body to the size required by the drawing;
seventhly, boring a threaded hole;
eighthly, machining a plurality of cutter fixing threaded holes by a bench worker;
ninth, the thread sleeve is arranged in the thread hole, the pin hole is drilled and reamed, and then two first semi-cylindrical pin holes are formed in the thread sleeve;
ten, blunt sharp edge.
Compared with the prior art, the invention has the following beneficial effects:
the threaded sleeve is positioned by the two cylindrical pins and is expanded, when the internal thread of the threaded sleeve is damaged, the threaded sleeve is only required to be replaced, the whole tiger head tool row cannot be scrapped, in addition, the forged blank is adopted, rough machining is firstly carried out, then thermal refining is carried out, and finally semi-finish machining and finish machining are carried out, so that the mechanical property of the tiger head tool row can be improved, the service life of the tiger head tool row is further prolonged, and the production and machining cost is reduced.
Drawings
FIG. 1 is a front view of the present invention;
FIG. 2 is a top view of FIG. 1;
FIG. 3 is a right side view of FIG. 1;
FIG. 4 is a schematic view of a locating block;
FIG. 5 is a sectional view A-A of FIG. 4;
fig. 6 is a front view of the threaded sleeve 2;
fig. 7 is a sectional view B-B of fig. 6.
Detailed Description
The first embodiment is as follows: the embodiment is described with reference to fig. 1 to 7, and the threaded box type tiger head tool row of the embodiment comprises a tool row body 1, a threaded sleeve 2, two cylindrical pins and a plurality of set screws 5;
the cutter row body 1 is provided with a cutter mounting groove 1-1, a threaded hole 1-2 and a plurality of cutter fixing threaded holes 1-3 in a processing mode, each cutter fixing threaded hole 1-3 is provided with a set screw 5, the threaded hole 1-2 is provided with two first semi-cylindrical pin holes 121 in a processing mode, the inner surface and the outer surface of the threaded sleeve 2 are both provided with threads, the outer surface of the threaded sleeve 2 is provided with two second semi-cylindrical pin holes 2-1 in a processing mode, the threaded sleeve 2 is screwed into the threaded hole 1-2, each first semi-cylindrical pin hole 121 is matched with each second semi-cylindrical pin hole 2-1 to form a cylindrical pin hole, and each cylindrical pin hole is internally provided with a cylindrical pin.
The cutter mounting groove 1-1 is a U-shaped groove, and a cutter is mounted in the cutter mounting groove 1-1 and fixed through a set screw 5.
The second embodiment is as follows: the embodiment is described with reference to fig. 4 and 5, the threaded-sleeve-type tiger head tool row of the embodiment further includes a positioning block 3, the positioning block 3 is connected with the tool row body 1 through a screw, and the positioning block 3 is arranged on one side of the tool row body 1 where the threaded hole 1-2 is machined.
An inclined plane is processed on the positioning block 3, and an included angle alpha between the inclined plane and the axis of the threaded hole in the positioning block 3 is 15 degrees.
The inclined plane on the positioning block 3 is matched with the inclined plane on the tool rest on the machine tool to play a positioning role.
Other components and connections are the same as in the first embodiment.
The third concrete implementation mode: the present embodiment is described with reference to fig. 1, 6, and 7, and a cutter bar body processing method according to the present embodiment includes the steps of:
firstly, forging a blank;
secondly, roughly milling according to the maximum size of the shape of the cutter row body 1, and reserving machining allowance;
thirdly, quenching and tempering;
the mechanical property of the cutter row body 1 is improved, and the subsequent semi-finishing and finish machining are facilitated.
Fourthly, performing semi-finish milling according to the maximum size of the shape of the cutter row body 1, and reserving machining allowance;
grinding according to the maximum size of the shape of the cutter row body 1 to the size required by the drawing;
sixthly, milling according to the shape of the cutter row body 1 to the size required by the drawing;
seventhly, boring a threaded hole 1-2;
eighthly, machining a plurality of cutter fixing threaded holes 1-3 by a bench worker;
ninth, the threaded sleeve 2 is installed into the threaded hole 1-2, pin holes are drilled and reamed, and two first semi-cylindrical pin holes 121 are formed in the threaded sleeve 2;
ten, blunt sharp edge.
The fourth concrete implementation mode: the machining allowance in the second step of the present embodiment is 3 mm.
Other compositions and connection relations are the same as those of the third embodiment.
The fifth concrete implementation mode: the machining allowance of the fourth step in the embodiment is 0.2-0.3 mm.
Other compositions and connection relations are the same as those of the third embodiment.
Claims (5)
1. The utility model provides a screw thread shell formula tiger head tool row which characterized in that: the novel cutter row comprises a cutter row body (1), a threaded sleeve (2), two cylindrical pins and a plurality of set screws (5);
the cutter row body (1) is provided with a cutter mounting groove (1-1), threaded holes (1-2) and a plurality of cutter fixing threaded holes (1-3), each cutter fixing threaded hole (1-3) is provided with a set screw (5), each threaded hole (1-2) is provided with two first semi-cylindrical pin holes (121), the inner surface and the outer surface of the threaded sleeve (2) are both provided with threads, the outer surface of the threaded sleeve (2) is provided with two second semi-cylindrical pin holes (2-1), the threaded sleeve (2) is screwed into the threaded holes (1-2), each first semi-cylindrical pin hole (121) is matched with each second semi-cylindrical pin hole (2-1) to form a cylindrical pin hole, and each cylindrical pin hole is internally provided with a cylindrical pin.
2. The threaded box tiger head tool row of claim 1, wherein: the cutter bar is characterized by further comprising a positioning block slave (3), wherein the positioning block slave (3) is connected with the cutter bar body (1) through a screw, and the positioning block slave (3) is arranged on one side of the cutter bar body (1) where a threaded hole (1-2) is machined.
3. A method of machining a blade row body as claimed in claim 1, characterized in that: it comprises the following steps:
firstly, forging a blank;
secondly, roughly milling according to the maximum size of the shape of the cutter row body (1) and reserving machining allowance;
thirdly, quenching and tempering;
fourthly, performing semi-finish milling according to the maximum size of the shape of the cutter row body (1), and reserving machining allowance;
grinding according to the maximum size of the shape of the cutter row body (1) to the size required by a drawing;
sixthly, milling according to the shape of the cutter row body (1) to the size required by the drawing;
seventhly, boring a threaded hole (1-2);
eighthly, machining a plurality of cutter fixing threaded holes (1-3) by a bench worker;
ninth, the threaded sleeve (2) is arranged in the threaded hole (1-2), pin holes are drilled and reamed, and two first semi-cylindrical pin holes (121) are formed in the threaded sleeve (2);
ten, blunt sharp edge.
4. The cutter bar body processing method according to claim 3, characterized in that: and the machining allowance in the second step is 3 mm.
5. The cutter bar body processing method according to claim 3, characterized in that: and the machining allowance of the fourth step is 0.2-0.3 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910482717.7A CN112025208A (en) | 2019-06-04 | 2019-06-04 | Threaded sleeve type tiger head tool row and machining method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910482717.7A CN112025208A (en) | 2019-06-04 | 2019-06-04 | Threaded sleeve type tiger head tool row and machining method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112025208A true CN112025208A (en) | 2020-12-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910482717.7A Pending CN112025208A (en) | 2019-06-04 | 2019-06-04 | Threaded sleeve type tiger head tool row and machining method |
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| CN (1) | CN112025208A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118650451A (en) * | 2024-06-19 | 2024-09-17 | 东风设备制造有限公司 | Connection structure and method of cavity type machine tool frame and linear motor coil |
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| US6010281A (en) * | 1997-09-10 | 2000-01-04 | Seco Tools Ab | Toolholder having a clamping arm and a stop for preventing excessive opening thereof |
| CN202877558U (en) * | 2012-10-11 | 2013-04-17 | 河南卫华重型机械股份有限公司 | Telescopic multifunctional knife rest and heave-duty lathe using same |
| CN205519719U (en) * | 2016-02-18 | 2016-08-31 | 山东金辰机械股份有限公司 | A device for improving differential microcartridge commonality of screw thread |
| CN206104902U (en) * | 2016-09-21 | 2017-04-19 | 中冶陕压重工设备有限公司 | Lathe cutting board |
| CN106807979A (en) * | 2015-11-30 | 2017-06-09 | 江苏核电有限公司 | Reactor coolant pump journal bearing stationary ring spare part processing unit (plant) |
| CN207681510U (en) * | 2017-09-29 | 2018-08-03 | 长沙五七一二飞机工业有限责任公司 | A kind of numerically controlled lathe cutter cutter holder |
| CN109676163A (en) * | 2019-02-20 | 2019-04-26 | 贵州大学 | A kind of cutter frame mechanism based on machining equipment |
-
2019
- 2019-06-04 CN CN201910482717.7A patent/CN112025208A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6010281A (en) * | 1997-09-10 | 2000-01-04 | Seco Tools Ab | Toolholder having a clamping arm and a stop for preventing excessive opening thereof |
| CN202877558U (en) * | 2012-10-11 | 2013-04-17 | 河南卫华重型机械股份有限公司 | Telescopic multifunctional knife rest and heave-duty lathe using same |
| CN106807979A (en) * | 2015-11-30 | 2017-06-09 | 江苏核电有限公司 | Reactor coolant pump journal bearing stationary ring spare part processing unit (plant) |
| CN205519719U (en) * | 2016-02-18 | 2016-08-31 | 山东金辰机械股份有限公司 | A device for improving differential microcartridge commonality of screw thread |
| CN206104902U (en) * | 2016-09-21 | 2017-04-19 | 中冶陕压重工设备有限公司 | Lathe cutting board |
| CN207681510U (en) * | 2017-09-29 | 2018-08-03 | 长沙五七一二飞机工业有限责任公司 | A kind of numerically controlled lathe cutter cutter holder |
| CN109676163A (en) * | 2019-02-20 | 2019-04-26 | 贵州大学 | A kind of cutter frame mechanism based on machining equipment |
Non-Patent Citations (1)
| Title |
|---|
| 郑红: "方刀架零件数控加工工艺设计", 《价值工程》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118650451A (en) * | 2024-06-19 | 2024-09-17 | 东风设备制造有限公司 | Connection structure and method of cavity type machine tool frame and linear motor coil |
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Application publication date: 20201204 |