CN112108658B - Bar processing technology - Google Patents
Bar processing technology Download PDFInfo
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- CN112108658B CN112108658B CN202010869895.8A CN202010869895A CN112108658B CN 112108658 B CN112108658 B CN 112108658B CN 202010869895 A CN202010869895 A CN 202010869895A CN 112108658 B CN112108658 B CN 112108658B
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- turning
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- 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
Abstract
The application relates to a bar processing technology, relates to bar processing technology field, and it includes: s1, preparation step one: fixing a bar on a clamp of a lathe and installing a turning tool; s2, turning I: turning the profile of one end of the workpiece on the part of the bar protruding out of the clamp; s3, preparation step two: disassembling the bar stock and turning the direction, fixing the end part of the processed workpiece on a clamp of a lathe, and exposing the unprocessed bar stock part; s4, turning II: and turning the profile of the other end of the workpiece at one end of the bar material far away from the clamp. Aiming at the problem of poor coaxiality of a workpiece turned by a lathe, the invention has the advantage of improving the coaxiality of the workpiece.
Description
Technical Field
The application relates to the technical field of bar processing, in particular to a bar processing technology.
Background
Bar stock is a material in the shape of a long rod of circular or polygonal shape having a certain length for sheet materials and other profiles. The bar stock is subjected to turning on a lathe to obtain shafts, discs, sleeves and other workpieces with rotating surfaces.
In the related art, a riveting fastener for an auxiliary lock of an automobile engine hood lock, referring to fig. 1, a shaft-type workpiece obtained by turning a bar material includes a clamping rod 01, a first step ring 02, a rod body 03 and an end step ring 04, which are sequentially arranged, and the clamping rod 01, the first step ring 02, the rod body 03 and the end step ring 04 are all cylinders and are coaxial with each other.
In view of the above-mentioned related technologies, the inventor believes that there is a defect that the coaxiality of the machined workpiece is poor when the shaft workpiece is manufactured by turning a bar stock.
Disclosure of Invention
In order to improve the coaxiality of a workpiece obtained by turning a bar, the application provides a bar machining process which has the effect of improving the coaxiality of the workpiece.
The technical scheme is adopted in the bar processing technology provided by the application.
A bar processing technology comprises the following steps:
s1, preparation step one: fixing a bar on a clamp of a lathe and installing a turning tool;
s2, turning I: turning the profile of one end of the workpiece on the part of the bar protruding out of the clamp;
s3, preparation step two: disassembling the bar stock and turning the direction, fixing the end part of the processed workpiece on a clamp of a lathe, and exposing the unprocessed bar stock part;
s4, turning II: and turning the profile of the other end of the workpiece at one end of the bar material far away from the clamp.
By adopting the technical scheme, the two ends of the workpiece are turned step by step to form the whole profile of the workpiece, and compared with the mode of directly processing the complete profile of the workpiece on the bar, the distributed turning mode shortens the length of the suspended section of the bar or the workpiece during turning, reduces the bending of the bar or the workpiece in the rotating process, and further improves the whole coaxiality of the shaft workpiece obtained by turning.
Preferably, in S2, the clamping bar, the first step ring and the partial rod body are turned at the end of the bar material away from the clamp.
In S3, the clamp bar is fixed to the jig of the lathe, and the first step ring abuts against the end surface of the jig of the lathe.
In S4, the remaining portion of the rod body and the end step ring are turned.
Through adopting above-mentioned technical scheme, the axial positioning is carried out to the work piece to the anchor clamps terminal surface butt of first step ring and lathe to guarantee riveting fastener's machining precision reduces the dimensional error between the riveting fastener of difference.
Preferably, the turning tools in S1 include a roughing tool and a finishing tool.
Through adopting above-mentioned technical scheme, the thick lathe tool carries out the rough turning to the bar, gets rid of the clout on the bar fast, and the finish turning tool carries out the finish turning to the rough embryo that processes out roughly the profile, obtains the work piece that surface accuracy is good, size precision is high, carries out rough turning and finish turning in proper order, has ensured the quality of work piece promptly and has improved machining efficiency.
Preferably, the turning process of S2 includes:
s21, opening a first: turning the end part of the bar far away from the clamp by using a rough turning tool to process the outlines of the clamping rod, the first step ring and the end of the bar body close to the first step ring, and reserving a machining allowance of 0.1-0.2mm to obtain a first rough blank;
s22, finish turning I: and (3) carrying out finish turning on the first rough blank by using a finish turning tool, and processing a clamping rod with accurate size, a first step ring and a part of rod body to obtain a second rough blank.
Preferably, the turning process of S4 includes:
s41, opening thick two: turning one end of the rough blank II, which is far away from the clamping rod, by using a rough turning tool, processing the outlines of the end step ring and the rest part of the rod body, and reserving a processing allowance of 0.1-0.2mm to obtain a rough blank III;
s42, finish turning II: and (5) precisely machining the rough blank by using a finishing tool to obtain an end step ring with accurate size and the rest rod body.
Preferably, the turning process of S2 includes:
s21, opening a first: turning the end part of the bar far away from the clamp by using a rough turning tool to process the outlines of the clamping rod, the first step ring and the end of the bar body close to the first step ring, and reserving a machining allowance of 0.1-0.2mm to obtain a first rough blank;
s22, finish turning I: and (3) carrying out finish turning on the rough blank I by using a finish turning tool, processing the clamping rod with accurate size, the end surface of the first step ring close to the clamping rod and the circumferential contour of the first step ring, and still keeping the processing allowance of 0.1-0.2mm for the end surface of the first step ring close to the rod body and part of the rod body to obtain a rough blank II.
Preferably, the turning process of S4 includes:
s41, opening thick two: turning one end of the rough blank II, which is far away from the clamping rod, by using a rough turning tool, processing the outlines of the end step ring and the rest part of the rod body, and reserving a processing allowance of 0.1-0.2mm to obtain a rough blank III;
s42, finish turning II: and (3) finely machining the rough blank by using a finish turning tool, machining an end step ring with accurate size, the end surface of the first step ring close to the rod body and the rod body, and cutting off machining allowance of the rod body at one time by using the finish turning tool.
Through adopting above-mentioned technical scheme, through keeping the machining allowance, when carrying out the finish turning two of S42 step, once only cut out the accurate body of rod of size to guarantee the surface quality of the body of rod, appear on the prevention body of rod and connect the knife line.
Preferably, the rough turning tool is a 3.0 groove cutter.
Preferably, the finishing tool includes a first finishing tool and a second finishing tool.
At S42, the end face of the end step ring at the end remote from the clamping bar is finish-machined using a first finishing tool, and the circumferential profile of the end step ring is finish-machined using the first finishing tool.
And turning the end surfaces of the first step ring and the end step ring close to one side of the rod body to control the axial length of the first step ring and the axial length of the end step ring.
Preferably, the first finishing tool is a 60-degree finishing tool, and the second finishing tool is a 2.0-degree grooving tool.
Preferably, a clamping head for fixing the bar stock is detachably fixed on the lathe.
In summary, the present application includes at least one of the following beneficial technical effects:
the structures at the two ends of the workpiece are processed in two steps, the suspension section of the bar or the workpiece in each turning step is effectively shortened, the bending of the workpiece in the processing process can be effectively reduced, and the coaxiality of the workpiece is further guaranteed;
the machining allowance is arranged on the rod body part, so that the surface of the rod body can be machined continuously, and the surface quality of a workpiece is improved.
Drawings
FIG. 1 is a schematic diagram of a workpiece according to an embodiment of the present disclosure;
FIG. 2 is a process flow diagram of an embodiment of the present application;
FIG. 3 is a schematic diagram of a bar stock variation according to the first embodiment of the present application;
fig. 4 is a schematic diagram of a bar stock variation according to the second embodiment of the present application.
Reference numerals: 01. a clamping rod; 02. a first step ring; 03. a rod body; 04. an end step ring.
Detailed Description
The embodiment of the application discloses a bar processing technology.
Example 1:
referring to fig. 2 and 3, including:
s1, preparation step one: the clamp of the lathe is used for fixing the bar and installing a turning tool, the lathe is provided with a collet chuck for fixing the bar, and the turning tool comprises a rough turning tool and a finish turning tool. Wherein the rough turning tool is a 3.0 groove cutter; the finish turning tool comprises a first finish turning tool and a second finish turning tool, wherein the first finish turning tool is a 60-degree finish turning tool, and the second finish turning tool is a 3.0 bevel groove tool.
S2, turning a first part, namely turning a clamping rod 01, a first step ring 02 and a part of a rod body 03 at one end of the rod material far away from the clamp, wherein the turning process of S2 comprises the following steps:
s21, turning a first rough blank, namely turning the end part of the bar, far away from the clamp, of one end of the bar by using a rough turning tool, machining the outlines of the clamping rod 01, the first step ring 02 and a part of the rod body 03 close to the first step ring 02, and keeping a certain machining allowance, wherein the machining allowance is 0.15mm, so as to obtain the first rough blank;
s22, finish turning the first rough blank by using a first finish turning tool, and processing the clamping rod 01 with high surface quality and accurate size, the first step ring 02 and a part of the rod body 03 close to the first step ring 02 to obtain a second rough blank.
S3, preparation step two: and (3) detaching the second rough blank and turning the direction, fixing the part 01 of the clamping rod on a clamp of a lathe, and abutting the first step ring 02 with the end surface of the clamp.
S4, turning II, turning the rod body 03 and the end step ring 04 at one end of the bar material far away from the clamping part, wherein the turning process of S4 comprises the following steps:
s41, turning a second rough blank, turning one end of the second rough blank, far away from the clamping rod 01, by using a rough turning tool, machining the outlines of the step ring 04 at the end part and the residual rod body 03, and keeping a certain machining allowance, wherein the machining allowance is 0.15mm, so as to obtain a third rough blank;
and S42, finish turning the second step, finish-machining the end step ring 04 by using a finish-turning tool, and turning the rod body 03 between the end step ring 04 and the first step ring 02. Finish machining is carried out on the end face, away from the clamping rod 01, of the end step ring 04 by using a first finish tool, and then the total length of the workpiece is determined; finely machining the circumferential profile of the end step ring 04 by using a first finishing tool; and (3) finish machining the end face of the end step ring 04 close to one side of the rod body 03 by using a second finish tool so as to control the axial length of the end step ring 04, and determining the outer diameter profile of the rod body 03 section close to the end step ring 04 at the time of finish machining the part of the rod body 03 with allowance by using the second finish tool.
The implementation principle of the embodiment 1 is as follows: the two ends of the workpiece are turned step by step to form the overall profile of the workpiece, and compared with the mode of directly processing the complete profile of the workpiece on the bar, the distributed turning mode shortens the length of the suspended section of the bar or the workpiece during turning, enhances the strength of the turning section of the bar or the workpiece, reduces the bending of the bar or the workpiece during rotation, and further improves the overall coaxiality of the shaft workpiece obtained by turning.
Example 2:
referring to fig. 2 and 4, including:
s1, preparation step one: and fixing the bar stock on a lathe and installing turning tools, wherein the turning tools comprise a rough turning tool and a finish turning tool. Wherein the rough turning tool is a 3.0 groove cutter; the finish turning tool comprises a first finish turning tool and a second finish turning tool, wherein the first finish turning tool is a 60-degree finish turning tool, and the second finish turning tool is a 2.0-degree groove cutter.
S2, turning a first part, namely turning a clamping rod 01, a first step ring 02 and a part of a rod body 03 at one end of the rod material far away from the clamp, wherein the turning process of S2 comprises the following steps:
s21, turning a first rough blank, namely turning the end part of the bar, far away from the clamp, of one end of the bar by using a rough turning tool, machining the outlines of the clamping rod 01, the first step ring 02 and a part of the rod body 03 close to the first step ring 02, and keeping a certain machining allowance, wherein the machining allowance is 0.15mm, so as to obtain the first rough blank;
s22, finish turning the first rough blank by using a first finish turning tool, processing the clamping rod 01 with high surface quality and accurate size, processing the end surface of one side of the first step ring 02 close to the clamping rod 01 and the circumferential outline of the first step ring 02, and reserving 0.15mm of processing allowance on the side wall of one side of the first step ring 02 close to the rod body 03 and the processed part of the rod body 03 to obtain a second rough blank.
S3, preparation step two: and (3) detaching the second rough blank and turning the direction, fixing the part 01 of the clamping rod on a clamp of a lathe, and abutting the first step ring 02 with the end surface of the clamp.
S4, turning a second step, turning the remaining part of the rod body 03 close to the end step ring 04 and the end step ring 04 on the bar stock, wherein the turning process of S4 comprises the following steps:
s41, turning a second rough blank, turning one end of the second rough blank, far away from the clamping rod 01, by using a rough turning tool, machining the outline of the end step ring 04 and the outline of the rest part of the rod body 03, close to the end step ring 04, and keeping a certain machining allowance, wherein the machining allowance is 0.15mm, so as to obtain a third rough blank;
and S42, finish turning the second step, finish-machining the end step ring 04 by using a finish turning tool, and turning a rod body 03 with accurate size between the end step ring 04 and the first step ring 02. The end face of the end step ring 04, which is far away from the clamping rod 01, is subjected to finish machining by using a first finish tool, so that the length of the workpiece is determined; finely machining the circumferential profile of the end step ring 04 by using a first finishing tool; the end face of the first step ring 02 and the end part step ring 04 close to one side of the rod body 03 is turned by using a second finish turning tool to control the axial length of the first step ring 02 and the end part step ring 04, the second finish turning tool is used for cutting one end of the rod body 03 close to the first step ring 02 to the end of the rod body 03 far away from the first step ring 02, the allowance on the rod body 03 is turned at one time, and the rod body 03 with the smooth surface of the cutter processed in sequence is obtained.
The implementation principle of the embodiment 2 is as follows: in the step S22 of finish turning, a machining allowance is reserved on the sidewall of the side of the first step ring 02 far away from the clamping rod 01 and a machining allowance is reserved on the portion of the rod body 03 of the side of the first step ring 02 far away from the clamping rod 01, so that in the step S42 of finish turning, the second finish turning tool can continuously turn the whole rod area and the step surfaces on the two sides of the rod, and can prevent the occurrence of tool catching marks on the workpiece, so as to ensure the surface quality of the workpiece.
The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (10)
1. A bar processing technology is characterized in that: the method comprises the following steps:
s1, preparation step one: fixing a bar on a clamp of a lathe and installing a turning tool;
s2, turning I: turning the profile of one end of the workpiece on the part of the bar protruding out of the clamp;
s3, preparation step two: disassembling the bar stock and turning the direction, fixing the end part of the processed workpiece on a clamp of a lathe, and exposing the unprocessed bar stock part;
s4, turning II: and turning the profile of the other end of the workpiece at one end of the bar material far away from the clamp.
2. The bar processing technology according to claim 1, characterized in that: in S2, turning a clamping rod (01), a first step ring (02) and a partial rod body (03) at one end of the bar material far away from the clamp;
in S3, the clamping rod (01) is fixed on a clamp of a lathe, and the first step ring (02) is abutted against the end face of the clamp of the lathe;
in S4, the remaining part of the rod body (03) and the end step ring (04) are turned.
3. The bar processing technology according to claim 2, characterized in that: and S1, the turning tool comprises a rough turning tool and a fine turning tool.
4. A bar processing process according to claim 3, characterized in that: the turning process of S2 includes:
s21, opening a first: turning the end part of one end, far away from the clamp, of the bar by using a rough turning tool, processing the outlines of the clamping rod (01), the first step ring (02) and one end, close to the first step ring (02), of the bar body (03), and reserving a machining allowance of 0.1-0.2mm to obtain a first rough blank;
s22, finish turning I: and (3) carrying out finish turning on the first rough blank by using a finish turning tool, and processing a clamping rod (01), a first step ring (02) and a part of rod body (03) with accurate size to obtain a second rough blank.
5. The bar processing technology according to claim 4, characterized in that: the turning process of S4 includes:
s41, opening thick two: turning one end of the rough blank II, which is far away from the clamping rod (01), by using a rough turning tool, processing the outlines of the step ring (04) at the end part and the rest part of the rod body (03), and reserving the processing allowance of 0.1-0.2mm to obtain a rough blank III;
s42, finish turning II: and (3) finely machining the rough blank III by using a finish turning tool to machine an end step ring (04) with accurate size and the rest rod body (03).
6. A bar processing process according to claim 3, characterized in that: the turning process of S2 includes:
s21, opening a first: turning the end part of one end, far away from the clamp, of the bar by using a rough turning tool, processing the outlines of the clamping rod (01), the first step ring (02) and one end, close to the first step ring (02), of the bar body (03), and reserving a machining allowance of 0.1-0.2mm to obtain a first rough blank;
s22, finish turning I: and (2) carrying out finish turning on the rough blank I by using a finish turning tool, processing the end surface of the clamping rod (01) with accurate size, the end surface of the first step ring (02) close to the clamping rod (01) and the circumferential contour of the first step ring (02), and still keeping the processing allowance of 0.1-0.2mm on the end surface of the first step ring (02) close to the rod body (03) and part of the rod body (03) to obtain a rough blank II.
7. The bar processing technology according to claim 6, characterized in that: the turning process of S4 includes:
s41, opening thick two: turning one end of the rough blank II, which is far away from the clamping rod (01), by using a rough turning tool, processing the outlines of the step ring (04) at the end part and the rest part of the rod body (03), and reserving the processing allowance of 0.1-0.2mm to obtain a rough blank III;
s42, finish turning II: and (3) precisely machining the rough blank by using a finishing tool, machining an end step ring (04) with accurate size and a first step ring (02) close to the end face of the rod body (03) and the rod body (03), and cutting off machining allowance of the rod body (03) at one time by using the finishing tool.
8. A bar processing technology according to any one of claims 3 to 7, characterized in that: the rough turning tool is a 3.0 groove cutter.
9. The bar processing technology according to claim 7, characterized in that: the finish turning tool comprises a first finish turning tool and a second finish turning tool;
in S42, finish machining an end face of the end step ring (04) at an end remote from the clamping bar (01) with a first finishing tool, and finish machining a circumferential profile of the end step ring (04) with the first finishing tool;
and turning the rod body (03) with accurate size between the first step ring (02) and the end step ring (04) at one time by using a second finish turning tool, and simultaneously turning the end surfaces of the first step ring (02) and the end step ring (04) on the side close to the rod body (03) so as to control the axial length of the first step ring (02) and the end step ring (04).
10. The bar processing technology according to claim 9, wherein: the first finishing tool is a 60-degree finishing tool, and the second finishing tool is a 2.0-degree groove cutter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010869895.8A CN112108658B (en) | 2020-08-26 | 2020-08-26 | Bar processing technology |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010869895.8A CN112108658B (en) | 2020-08-26 | 2020-08-26 | Bar processing technology |
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| CN112108658A CN112108658A (en) | 2020-12-22 |
| CN112108658B true CN112108658B (en) | 2021-10-12 |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2810826Y (en) * | 2005-04-11 | 2006-08-30 | 李燕旗 | Liquid-spray type revolving center and liquid-spray type cutter holder |
| JP2007105864A (en) * | 2005-10-17 | 2007-04-26 | Denso Corp | Method and apparatus for lathe turning |
| CN102717115B (en) * | 2012-06-14 | 2014-05-14 | 北京航空航天大学 | High-speed intermittent ultrasonic vibration cutting method for low-rigidity parts |
| CN202763493U (en) * | 2012-07-25 | 2013-03-06 | 宁波沃诚精密机械有限公司 | Chuck guaranteeing turning precision |
| CN103722182A (en) * | 2013-12-12 | 2014-04-16 | 郑丽萍 | Method for turning germanium lens |
| CN203610708U (en) * | 2013-12-25 | 2014-05-28 | 于占江 | Tool clamp for machining end surface of conical drum-like parts |
| CN103949851B (en) * | 2014-04-16 | 2016-08-31 | 贵州凯星液力传动机械有限公司 | A kind of processing method of aluminium alloy thin-walled cylindrical member |
| CN106141329A (en) * | 2016-07-29 | 2016-11-23 | 哈尔滨飞机工业集团有限责任公司 | A kind of processing method ensureing sleeve part female thread axiality |
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