CN104999092A - Finish turning method for external circular face of thin-walled gear ring - Google Patents
Finish turning method for external circular face of thin-walled gear ring Download PDFInfo
- Publication number
- CN104999092A CN104999092A CN201510396911.5A CN201510396911A CN104999092A CN 104999092 A CN104999092 A CN 104999092A CN 201510396911 A CN201510396911 A CN 201510396911A CN 104999092 A CN104999092 A CN 104999092A
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- CN
- China
- Prior art keywords
- fan
- gear ring
- finish turning
- axial
- thin
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- 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.)
- Pending
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B1/00—Methods for turning or working essentially requiring the use of turning-machines; Use of auxiliary equipment in connection with such methods
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B31/00—Chucks; Expansion mandrels; Adaptations thereof for remote control
- B23B31/40—Expansion mandrels
- B23B31/404—Gripping the work or tool by jaws moving radially controlled by conical surfaces
- B23B31/4046—Details of the jaws
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B2220/00—Details of turning, boring or drilling processes
- B23B2220/24—Finishing
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Gripping On Spindles (AREA)
Abstract
The invention discloses a finish turning method for the external circular face of a thin-walled gear ring. The finish turning method is characterized by comprising the following steps: step a, a finish turning tool is fixed onto a spindle of a numerical control lathe; a fan-shaped clamping block is fixedly arranged on the right surface of each of three jaws of a three-jaw chuck, and a first fan-shaped lug boss and a second fan-shaped lug boss are formed in the right surface of each clamping block in the axial direction; and when the three jaws of the three-jaw chuck are drawn together, the three clamping blocks form a complete disc, at least two axial blind holes are formed in the right surface of the first fan-shaped lug boss of each clamping block in the circumferential direction, and a stripper spring is mounted in each axial blind hole; step b, a thin-walled gear ring is clamped; step c, finish turning is carried out; and step d, unloading is conducted. Sealing swelling of the whole inner hole of the gear ring is realized by the external circular faces of the first fan-shaped lug bosses, so that the gear ring can be positioned and clamped on the whole circumference, accordingly, the gear ring is well prevented from deformation caused by unbalanced stress, and the processing precision of the external circular face of the gear ring is guaranteed.
Description
Technical field
The invention belongs to thin-walled gear ring manufacture field, particularly relate to a kind of thin-walled gear ring periphery finish turning method.
Background technology
Thin-walled gear ring is that one uses parts widely, the general endoporus adopting scroll chuck to clamp gear ring in the operation in current fine turning outer circle face, and because the wall thickness of thin-walled gear ring is thinner, the stressed rear easy generation distortion of gear ring, so just cannot ensure machining accuracy.In addition, handling gear ring adopts manual type all completely at present, and clamping efficiency is low, is badly in need of solving above-mentioned technical barrier for this reason.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of thin-walled gear ring periphery finish turning method, for preventing gear ring to be out of shape, and improves the efficiency of handling gear ring simultaneously.
Technical scheme of the present invention is as follows: a kind of thin-walled gear ring periphery finish turning method, is characterized in that comprising the steps:
Step a: fix a finish turning frock on the main shaft of numerically controlled lathe, this finish turning frock comprises scroll chuck (1), and the axial line of this scroll chuck (1) and the axial line of spindle of numerical control lathe are on same straight line; Three right surfaces of claw (1a) of described scroll chuck (1) are installed with a fan-shaped grip block (2) respectively, the right surface of each grip block (2) has the first fan-shaped boss (2a) and the second fan-shaped boss (2b) vertically, and wherein the radius of the second fan-shaped boss (2b) is less than the first fan-shaped boss (2a); When three claws (1a) of described scroll chuck (1) are drawn close, three grip blocks (2) form a complete disk, the first fan-shaped boss (2a) on these three grip blocks (2) and the second fan-shaped boss (2b) form an annular boss respectively, and the axial line of these two annular boss and disk and scroll chuck (1) is on same straight line;
First fan-shaped boss (2a) periphery surface roughness of each described grip block (2) is 0.8mm, first fan-shaped boss (2a) right surface of each grip block (2) circumferentially has at least two axial blind holes (2a '), this axial blind hole is heavy stand hole, in each axial blind hole (2a '), a discharging spring (3) is housed; The left part of described discharging spring (3) is installed with a packing ring (4), this packing ring is fixed in the macropore section of described axial blind hole (2a '), and the right part of discharging spring (3) is exposed division, the axial length of this exposed division is 1-3mm; Each described grip block (2) is circumferentially provided with at least two axial installing holes, be provided with an axial bolt (5) in each axial installing hole, the root of this axial bolt is fixed on claw (1a) corresponding to described scroll chuck (1);
Step b: clamping thin-walled gear ring, adopts manual type by thin-walled gear ring clamping in the second fan-shaped boss (2b) outside;
Step c: finish turning, utilizes numerically controlled lathe finish turning thin-walled gear ring;
Steps d; Discharging, three claws (1a) controlling scroll chuck (1) after completing finish turning are unclamped, thus utilize discharging spring (3) to complete discharging.
Adopt technique scheme, each described grip block (2) is fixed by the corresponding claw of at least two axial bolt (5) with scroll chuck (1), so just can make grip block (2) uniform force, be subjected to displacement when preventing grip block (2) stressed.During finish turning, the present invention is by the whole endoporus of the periphery swelling gear ring of the first fan-shaped boss (2a), so just can whole circumferentially to gear ring location, clamping, thus prevent gear ring from deforming because of unbalance stress well, and then ensure the machining accuracy of gear ring periphery, gear ring after finish turning is by discharging spring ejection, thus realize automatic discharging, and finish turning tool structure of the present invention is simple, easy to implement, there is good practicality, also can promote the use to the similar thin-wall part of other versions of clamping.
Unload workpiece to reliably realize, spy is provided with three discharging springs (3) on every block grip block (2).
For the ease of installing securely, each described grip block (2) is fixed on claw (1a) corresponding to scroll chuck (1) by two axial bolt (5).
Beneficial effect: the present invention is by the whole endoporus of the periphery swelling gear ring of the first fan-shaped boss, so just can whole circumferentially to gear ring location, clamping, thus prevent gear ring from deforming because of unbalance stress well, and then ensure the machining accuracy of gear ring periphery, gear ring after finish turning is by discharging spring ejection, thus realize automatic discharging, and finish turning tool structure of the present invention is simple, easy to implement, there is good practicality, also can promote the use to the similar thin-wall part of other versions of clamping.
Accompanying drawing explanation
Fig. 1 adopts by the present invention the front view of finish turning frock;
Fig. 2 is that the A-A of Fig. 1 is to turnover cutaway view Amplified image.
Detailed description of the invention
Below in conjunction with drawings and Examples, the invention will be further described:
As shown in Figure 1, 2, a kind of thin-walled gear ring periphery finish turning method, is characterized in that comprising the steps:
Step a: fix a finish turning frock on the main shaft of numerically controlled lathe, this finish turning frock comprises scroll chuck 1, and the axial line of this scroll chuck 1 and the axial line of spindle of numerical control lathe are on same straight line.Described finish turning frock, is formed primarily of scroll chuck 1, grip block 2, discharging spring 3, packing ring 4 and axial bolt 5.Wherein, scroll chuck 1 is outsourcing piece, and its Structure and Properties is well known to those skilled in the art, and does not repeat at this.Three right surfaces of claw 1a of scroll chuck 1 are installed with a fan-shaped grip block 2 respectively, each grip block 2 is circumferentially provided with at least two axial installing holes, be provided with an axial bolt 5 in each axial installing hole, the root of this axial bolt 5 is fixed on the claw 1a of scroll chuck 1 correspondence.In the present case, each grip block 2 is fixed on the claw 1a of scroll chuck 1 correspondence by two axial bolt 5.
The right surface of each grip block 2 has the first fan-shaped boss 2a and the second fan-shaped boss 2b vertically, and wherein the radius of the second fan-shaped boss 2b is less than the first fan-shaped boss 2a, and the second fan-shaped boss 2b is positioned at the right of the first fan-shaped boss 2a.When three claw 1a of scroll chuck 1 draw close, three grip blocks 2 form a complete disk, the first fan-shaped boss 2a on these three grip blocks 2 and the second fan-shaped boss 2b forms an annular boss respectively, and the axial line of these two annular boss and disk and scroll chuck 1 is on same straight line.
As shown in Figure 1, 2, the first fan-shaped boss 2a periphery surface roughness of each grip block 2 is 0.8mm, and the periphery of this first fan-shaped boss 2a is for locating, clamping the endoporus of thin-walled gear ring.The first fan-shaped right surface of boss 2a of each grip block 2 circumferentially has at least two axial blind hole 2a ', and this axial blind hole is heavy stand hole, and a discharging spring 3 is housed in each axial blind hole 2a '.In the present case, every block grip block 2 is provided with three discharging springs 3.The left part of discharging spring 3 is installed with a packing ring 4, and this packing ring 4 is fixed in the macropore section of axial blind hole 2a '.The right part of discharging spring 3 is exposed division, and the exposed division axial length of this discharging spring 3 is 1-3mm, is to ensure suitable elastic force like this.
Step b: clamping thin-walled gear ring, adopt manual type by thin-walled gear ring clamping outside the second fan-shaped boss 2b;
Step c: finish turning, utilizes numerically controlled lathe finish turning thin-walled gear ring;
Steps d; Discharging, three the claw 1a controlling scroll chuck 1 after completing finish turning unclamp, thus utilize discharging spring 3 to complete discharging.
The foregoing is only preferred embodiment of the present invention, is not restriction with the present invention, and all any amendments done within the spirit and principles in the present invention, equivalent replacement and improvement etc., all should be included within protection scope of the present invention.
Claims (3)
1. a thin-walled gear ring periphery finish turning method, is characterized in that comprising the steps:
Step a: fix a finish turning frock on the main shaft of numerically controlled lathe, this finish turning frock comprises scroll chuck (1), and the axial line of this scroll chuck (1) and the axial line of spindle of numerical control lathe are on same straight line; Three right surfaces of claw (1a) of described scroll chuck (1) are installed with a fan-shaped grip block (2) respectively, the right surface of each grip block (2) has the first fan-shaped boss (2a) and the second fan-shaped boss (2b) vertically, and wherein the radius of the second fan-shaped boss (2b) is less than the first fan-shaped boss (2a); When three claws (1a) of described scroll chuck (1) are drawn close, three grip blocks (2) form a complete disk, the first fan-shaped boss (2a) on these three grip blocks (2) and the second fan-shaped boss (2b) form an annular boss respectively, and the axial line of these two annular boss and disk and scroll chuck (1) is on same straight line;
First fan-shaped boss (2a) periphery surface roughness of each described grip block (2) is 0.8mm, first fan-shaped boss (2a) right surface of each grip block (2) circumferentially has at least two axial blind holes (2a '), this axial blind hole is heavy stand hole, in each axial blind hole (2a '), a discharging spring (3) is housed; The left part of described discharging spring (3) is installed with a packing ring (4), this packing ring is fixed in the macropore section of described axial blind hole (2a '), and the right part of discharging spring (3) is exposed division, the axial length of this exposed division is 1-3mm; Each described grip block (2) is circumferentially provided with at least two axial installing holes, be provided with an axial bolt (5) in each axial installing hole, the root of this axial bolt is fixed on claw (1a) corresponding to described scroll chuck (1);
Step b: clamping thin-walled gear ring, adopts manual type by thin-walled gear ring clamping in the second fan-shaped boss (2b) outside;
Step c: finish turning, utilizes numerically controlled lathe finish turning thin-walled gear ring;
Steps d; Discharging, three claws (1a) controlling scroll chuck (1) after completing finish turning are unclamped, thus utilize discharging spring (3) to complete discharging.
2. thin-walled gear ring periphery finish turning method according to claim 1, is characterized in that: every block grip block (2) is provided with three discharging springs (3).
3. thin-walled gear ring periphery finish turning method according to claim 1, is characterized in that: each described grip block (2) is fixed on claw (1a) corresponding to scroll chuck (1) by two axial bolt (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510396911.5A CN104999092A (en) | 2015-07-08 | 2015-07-08 | Finish turning method for external circular face of thin-walled gear ring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510396911.5A CN104999092A (en) | 2015-07-08 | 2015-07-08 | Finish turning method for external circular face of thin-walled gear ring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104999092A true CN104999092A (en) | 2015-10-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510396911.5A Pending CN104999092A (en) | 2015-07-08 | 2015-07-08 | Finish turning method for external circular face of thin-walled gear ring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104999092A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109570542A (en) * | 2018-12-29 | 2019-04-05 | 苏州工业职业技术学院 | A kind of turning clamp for planet carrier |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5984319A (en) * | 1998-02-17 | 1999-11-16 | American Hofmann Corporation | Holding device |
| CN202070779U (en) * | 2011-05-20 | 2011-12-14 | 重庆第二机床厂有限责任公司 | Chuck jaw |
| CN203265673U (en) * | 2013-05-27 | 2013-11-06 | 福建得邦机械制造有限公司 | Brake ring outer circle face machining fixture |
| CN104385019A (en) * | 2014-09-28 | 2015-03-04 | 杭州汽轮机股份有限公司 | Method and turning clamp for oil cylinder piston sealing ring machining |
| CN104526284A (en) * | 2014-12-19 | 2015-04-22 | 常熟市常轴轴承有限公司 | Thin-walled bearing ring lathing process |
-
2015
- 2015-07-08 CN CN201510396911.5A patent/CN104999092A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5984319A (en) * | 1998-02-17 | 1999-11-16 | American Hofmann Corporation | Holding device |
| CN202070779U (en) * | 2011-05-20 | 2011-12-14 | 重庆第二机床厂有限责任公司 | Chuck jaw |
| CN203265673U (en) * | 2013-05-27 | 2013-11-06 | 福建得邦机械制造有限公司 | Brake ring outer circle face machining fixture |
| CN104385019A (en) * | 2014-09-28 | 2015-03-04 | 杭州汽轮机股份有限公司 | Method and turning clamp for oil cylinder piston sealing ring machining |
| CN104526284A (en) * | 2014-12-19 | 2015-04-22 | 常熟市常轴轴承有限公司 | Thin-walled bearing ring lathing process |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109570542A (en) * | 2018-12-29 | 2019-04-05 | 苏州工业职业技术学院 | A kind of turning clamp for planet carrier |
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|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20151028 |
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| RJ01 | Rejection of invention patent application after publication |