CN113182549A - Method for machining high-precision rotating shaft excircle by using eccentric boring cutter - Google Patents

Method for machining high-precision rotating shaft excircle by using eccentric boring cutter Download PDF

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Publication number
CN113182549A
CN113182549A CN202110354466.1A CN202110354466A CN113182549A CN 113182549 A CN113182549 A CN 113182549A CN 202110354466 A CN202110354466 A CN 202110354466A CN 113182549 A CN113182549 A CN 113182549A
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rotating shaft
processing
machining
processed
cutter
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CN113182549B (en
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陈云
王元军
周进
熊航
夏士伟
任德祖
方正
王朋关
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Chengdu Aircraft Industrial Group Co Ltd
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Chengdu Aircraft Industrial Group Co Ltd
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23BTURNING; BORING
    • B23B35/00Methods for boring or drilling, or for working essentially requiring the use of boring or drilling machines; Use of auxiliary equipment in connection with such methods

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Drilling And Boring (AREA)
  • Milling Processes (AREA)

Abstract

The application relates to the technical field of machining, and discloses a method for machining an excircle of a high-precision rotating shaft by using an eccentric boring cutter, wherein in the first machining, firstly, material is received, a part is clamped and aligned as required, then, whether the allowance of a cylindrical part to be machined is uniform is rechecked, then, the diameter size, the recorded size and the ambient temperature of the cylindrical part to be machined are measured before machining, the boring cutter is coarsely adjusted, and finally, a high-strength steel rotating shaft substrate is machined by using a small allowance; and during the second processing, firstly, performing surface treatment on the part, then, receiving materials, then, repeating the operation and finishing the rough adjusting cutter, and finally, processing the high-strength steel rotating shaft with the coating by a small margin. The method is different from the traditional excircle processing method, adopts the scheme that the cutter is fixed and fixed on the part and rotates, and is not limited by the size and space of the part, so that the method is wide in application range.

Description

Method for machining high-precision rotating shaft excircle by using eccentric boring cutter
Technical Field
The application relates to the technical field of machining, in particular to a method for machining an excircle of a high-precision rotating shaft by using an eccentric boring cutter.
Background
In the field of machining, a revolving body type part such as a rotating shaft is generally subjected to turning to form the size of the part, if the formed part or part has a large revolving radius, the outer circle machining may not be performed by using a lathe due to space limitation, and if milling is adopted, the high coaxiality requirement and the surface quality requirement of a high-precision rotating shaft cannot be ensured due to the influence of the characteristics of the lathe and the machining mode. Particularly, for a high-strength steel rotating shaft, because the rigidity of a material matrix is high, the requirement on precision is high, secondary machining (or complementary machining) after a part is formed is difficult to implement by turning or milling, and the precision cannot be guaranteed.
Therefore, in order to realize the processing of the high-strength steel rotating shaft and ensure the processing precision, the research on the boring processing method of the high-strength steel rotating shaft is carried out, the eccentric boring cutter is used on a boring machine to process the excircle of the high-strength steel rotating shaft, and the precision requirement of part processing is ensured.
Disclosure of Invention
In order to solve the problems and the defects existing in the prior art, the application provides a method for machining the excircle of the high-precision rotating shaft by using the eccentric boring cutter, so that the machining of the high-strength steel rotating shaft is realized, and the machining precision of parts is ensured.
In order to achieve the above object, the technical solution of the present application is as follows:
a method for processing the excircle of a high-precision rotating shaft by an eccentric boring cutter is characterized by comprising the following steps: during first processing, firstly, material is led, the part is clamped and aligned as required, then whether the allowance of the cylindrical part to be processed is uniform or not is checked again, then the diameter size of the cylindrical part to be processed is measured before processing, the diameter size and the ambient temperature are recorded, the eccentric boring cutter is roughly adjusted, finally, the high-strength steel rotating shaft base body is processed by small allowance, and the surface of the part is processed after processing is completed; and during the second processing, firstly, material is drawn, then the operation is repeated, after the rough adjusting cutter is completed, and finally, the high-strength steel rotating shaft with the coating is processed by a small margin.
Further, the first processing specifically comprises the following steps:
a1, getting parts, tools and measuring tools to be processed;
a2, assembling parts and aligning parts for the first time;
a3, rechecking whether the allowance of the fourth-order cylinder to be processed in the whole processing area is uniform;
a4, measuring and recording the diameter D1 of a fourth-step cylinder to be machined before machining, recording the ambient temperature, and roughly adjusting the position of the eccentric boring cutter for the first time according to the diameter D1 before machining;
a5, processing a high-strength rigid rotating shaft base body by a small margin;
a6, finishing machining and recording the size of the part;
a7, spraying a zinc layer on the surface of the processed part.
Further, the second processing specifically comprises the following steps:
b1, getting parts, tools and measuring tools to be processed;
b2, assembling parts and aligning the parts for the second time;
b3, rechecking whether the allowance of the fourth-order cylinder to be processed in the whole processing area is uniform;
b4, measuring and recording the diameter D2 of a fourth-step cylinder to be machined before machining, recording the ambient temperature, and roughly adjusting the position of the eccentric boring cutter for the second time according to the diameter D2 before machining;
b5, processing a high-strength rigid rotating shaft with a plating layer by a small margin;
b6, finishing and recording the size of the part.
Further, in the step a2, when clamping the part, the outer circle portion of the rotating shaft is used as a positioning cylinder, the clamping mechanism is used to clamp the first-order cylinder and the third-order cylinder of the rotating shaft, the hole axes of the first-order cylinder and the fourth-order cylinder to be processed are strictly aligned, the straightness is guaranteed to be less than or equal to 0.005mm, and meanwhile the coaxiality requirement of phi 0.04 is guaranteed.
Further, in the step B2, when clamping the part, the outer circle portion of the rotating shaft is used as a positioning cylinder, the clamping mechanism is used to clamp the first-order cylinder and the third-order cylinder of the rotating shaft, the hole axes of the first-order cylinder and the fourth-order cylinder to be processed are strictly aligned, the straightness is guaranteed to be less than or equal to 0.005mm, and meanwhile the coaxiality requirement of phi 0.04 is guaranteed.
Further, in the step a4, when the position of the eccentric boring tool is roughly adjusted, the turning radius of the nose of the eccentric boring tool is equal to the turning radius of the fourth-order cylinder to be machined.
Further, in the step B3, when the position of the eccentric boring tool is roughly adjusted, the turning radius of the nose of the eccentric boring tool is equal to the turning radius of the fourth-order cylinder to be machined.
Further, small allowance machining is adopted, the cutting depth of each cutter is less than or equal to 0.1mm, the rotating speed S =200rpm/mm, and the feeding F =100 mm/min.
The beneficial effect of this application:
(1) the method is different from the traditional excircle processing method, adopts the scheme that the cutter is fixed and fixed on the part and rotates, and is not limited by the size and space of the part, so that the method is wide in application range.
(2) This application uses eccentric boring cutter to process, and eccentric boring cutter processing radius is adjustable, and the flexibility is big to compare with traditional lathe tool, the blade of eccentric boring cutter can be dismantled, consequently easily replaces after wearing and tearing, and economic benefits is better.
(3) This application is adding man-hour because of spare part is fixed motionless, consequently does not need special frock clamping part, and economic benefits is better, guarantee before the processing part with the boring cutter relative position then compress tightly the part can, convenient and fast.
(4) This application can conveniently read the processing numerical value through boring cutter scale in the course of working, cooperates universal tool such as slide caliper simultaneously, carries out the secondary and rechecks, guarantees the accuracy.
(5) In the application, the cutter body and the cutter handle of the eccentric boring cutter are separated, can be adjusted randomly according to the size of the part to be machined, and have wide application range.
Drawings
The foregoing and following detailed description of the present application will become more apparent when read in conjunction with the following drawings, wherein:
FIG. 1 is a process flow diagram of the present application;
FIG. 2 is a schematic diagram of the eccentric boring tool for processing the high-strength rotating shaft substrate;
FIG. 3 is an enlarged partial view of the final dimension A of the first machined high-strength rotating shaft substrate of the present application (L in the drawing is the depth of the boring pin);
FIG. 4 is an enlarged view of the final dimension A of the second pass of the coated high strength shaft of the present application (where L is the depth of the bore hole).
In the figure:
1. a first-order cylinder; 2. a second-stage cylinder; 3. a third order cylinder; 4. a fourth order cylinder; 5. an eccentric boring cutter; 6. a shaft axis; 7. an eccentric boring tool axis; 8. a knife handle, 9 and a knife body; 10. a cutter body axis; 11. a blade.
Detailed Description
The technical solutions for achieving the objects of the present invention are further described below by specific examples, and it should be noted that the technical solutions claimed in the present application include, but are not limited to, the following examples.
Example 1
The embodiment discloses a method for processing an excircle of a high-precision rotating shaft by using an eccentric boring cutter, which is shown in the attached drawing 1 for reference, and comprises the following steps of processing twice, wherein during the first processing, firstly, material is led, the parts are clamped and aligned as required, whether the allowance of a cylindrical part to be processed is uniform is rechecked, the diameter size of the cylindrical part to be processed is measured before the processing, the diameter size and the ambient temperature are recorded, the eccentric boring cutter 5 is roughly adjusted, finally, a high-strength steel rotating shaft substrate is processed by using a small allowance, and the surface of the part is processed after the processing is finished; and during the second processing, firstly, material is taken, then the operation is repeated, the rough adjusting cutter is completed, and then the high-strength steel rotating shaft with the coating is processed by a small margin.
The method is different from the traditional excircle processing method, adopts the scheme that a part is fixed and a cutter is not moved to rotate, is not limited by the size and the space of the part, has wider application range, does not need a special tool for clamping the part because the part is fixed during processing, has better economic benefit, ensures the relative position of the part and a boring cutter before processing, and then compresses the part, and is convenient and fast.
Example 2
The embodiment discloses a method for processing an excircle of a high-precision rotating shaft by using an eccentric boring cutter, as shown in fig. 2, the high-precision rotating shaft comprises four cylindrical parts, namely a first-order cylinder 1, a second-order cylinder 2, a third-order cylinder 3 and a fourth-order cylinder 4, wherein the first-order cylinder 1 and the third-order cylinder 3 are positioning cylinders used for clamping parts and are used for clamping the whole rotating shaft part on a clamping mechanism, and the fourth-order cylinder 4 is a part to be processed of the rotating shaft; further, the eccentric boring tool 5 comprises two parts, namely a tool shank 8 and a tool body 9, wherein a sliding block on the tool body 9 is used for roughly adjusting the boring tool, the relative position relation between the sliding block on the tool shank 8 is ensured, and the boring tool can be finely adjusted by an adjusting blade 11.
Referring to the attached drawings 1-4 in the specification, the processing method specifically comprises the following steps:
A. first working
A1, material preparation: getting parts, tools and measuring tools to be processed, wherein the measuring tools comprise a vernier caliper, a lever indicator and the like;
a2, assembling parts, aligning the parts for the first time: the first-order cylinder 1 and the third-order cylinder 3 are used as positioning cylinders, the two parts are respectively clamped by a clamping mechanism to realize the assembly and clamping of parts, the hole axes of the first-order cylinder 1 and the fourth-order cylinder 4 to be processed are strictly aligned, the straightness is guaranteed to be less than or equal to 0.005mm, and the coaxiality requirement of phi 0.04 is guaranteed at the same time;
a3, reviewing the fourth-order cylinder 4 to be processed: rechecking whether the allowance of the fourth-order cylinder 4 to be processed in the whole processing area is uniform;
a4, preparation before processing: measuring and recording the diameter D1 of the fourth-order cylinder 4 to be machined before machining, recording the ambient temperature, roughly adjusting the position of the eccentric boring tool 5 for the first time according to the diameter D1 before machining, and ensuring that the turning radius H3 (H3 = H1-H2) of the tool nose of the eccentric boring tool 5 is equal to the turning radius (D1/2) of the fourth-order cylinder 4; wherein H1 represents the eccentricity of the eccentric boring cutter, namely the distance between the rotation center of the cutter bar of the boring cutter and the rotation center of the cutter handle 8; h2 represents the distance between the boring cutter point and the cutter bar rotation center;
a5, processing a high-strength rigid rotating shaft base body with a small margin: adjusting a boring cutter to adjust the value of the boring cutter to 39.96mm, boring the first cutter until the boring cutter is tangent to a base angle R3 adjacent to the fourth-order cylinder 4, measuring the actual size of a part, boring the part to 39.88-39.89 mm according to the actual value, machining with small allowance, wherein the cutting depth of each cutter is less than or equal to 0.1mm, the rotating speed S =200rpm/mm, and the feeding F =100 mm/min; in the actual processing, in order to improve the efficiency, the cutting depth of each cutter in the first small allowance processing can be slightly larger, namely the cutting depth of each cutter is less than or equal to 0.15 mm;
a6, finishing machining and recording the size of the part at the moment;
a7, surface treatment: and spraying a zinc layer on the surface of the processed part.
B. Second working
B1, material preparation: getting parts, tools and measuring tools to be processed, wherein the measuring tools comprise a vernier caliper, a lever indicator and the like;
b2, assembling parts, aligning the component for the second time: the first-order cylinder 1 and the third-order cylinder 3 are used as positioning cylinders, the two parts are respectively clamped by a clamping mechanism to realize the assembly and clamping of parts, the hole axes of the first-order cylinder 1 and the fourth-order cylinder 4 to be processed are strictly aligned, the straightness is guaranteed to be less than or equal to 0.005mm, and the coaxiality requirement of phi 0.04 is guaranteed at the same time;
b3, reviewing the fourth-order cylinder 4 to be processed: rechecking whether the allowance of the fourth-order cylinder 4 to be processed in the whole processing area is uniform;
b4, preparation before processing: measuring and recording the diameter D2 of the fourth-order cylinder 4 to be machined before machining, recording the ambient temperature, roughly adjusting the position of the eccentric boring tool 5 for the second time according to the diameter D2 before machining, and ensuring that the turning radius H3 (H3 = H1-H2) of the tool nose of the eccentric boring tool 5 is equal to the turning radius (D1/2) of the fourth-order cylinder 4; wherein H1 represents the eccentricity of the eccentric boring cutter, namely the distance between the rotation center of the cutter bar of the boring cutter and the rotation center of the cutter handle 8; h2 represents the distance between the boring cutter point and the cutter bar rotation center;
b5, processing a high-strength rigid rotating shaft with a plating layer by a small margin: adjusting a boring cutter to adjust the value of the boring cutter to 40.5mm, boring a zinc layer until the boring cutter is tangent to a base angle R3 adjacent to the fourth-order cylinder 4, wherein the theoretical depth is 65.5mm, boring is carried out to 39.985mm according to the measured value of 0.1mm of boring pin per cutter, the rotating speed S =200rpm/mm, and the feeding F =100 mm/min; in the second processing, it is necessary to ensure that the processing conditions of the second processing are the same as those of the first processing, such as the ambient temperature during processing;
b6, finishing and recording the size of the part.
In the description of the present application, it is to be understood that the terms "center", "longitudinal", "lateral", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are used merely for convenience in describing the present application and for simplifying the description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed in a particular orientation, and be operated, and therefore should not be construed as limiting the scope of the present application.
In the description of the present application, it is further noted that, unless expressly stated or limited otherwise, the terms "disposed," "mounted," and "connected" are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.
The foregoing is directed to embodiments of the present invention, which are not limited thereto, and any simple modifications and equivalents thereof according to the technical spirit of the present invention may be made within the scope of the present invention.

Claims (8)

1. A method for processing the excircle of a high-precision rotating shaft by an eccentric boring cutter is characterized by comprising the following steps: during first processing, firstly, material is led, the part is clamped and aligned as required, then whether the allowance of the cylindrical part to be processed is uniform or not is checked again, then the diameter size of the cylindrical part to be processed is measured before processing, the diameter size and the ambient temperature are recorded, the eccentric boring cutter (5) is roughly adjusted, finally, the high-strength steel rotating shaft base body is processed by small allowance, and the surface of the part is processed after the processing is finished; and during the second processing, firstly, material is drawn, then the operation is repeated, after the rough adjusting cutter is completed, and finally, the high-strength steel rotating shaft with the coating is processed by a small margin.
2. The method for machining the excircle of the high-precision rotating shaft by the eccentric boring tool as claimed in claim 1, wherein the method comprises the following steps: the first processing specifically comprises the following steps:
a1, getting parts, tools and measuring tools to be processed;
a2, assembling parts and aligning parts for the first time;
a3, rechecking whether the allowance of the fourth-order cylinder (4) to be processed in the whole processing area is uniform;
a4, measuring and recording the diameter D1 of a fourth-step cylinder (4) to be machined before machining, recording the ambient temperature, and roughly adjusting the position of the eccentric boring cutter (5) for the first time according to the diameter D1 before machining;
a5, processing a high-strength rigid rotating shaft base body by a small margin;
a6, finishing machining and recording the size of the part;
a7, spraying a zinc layer on the surface of the processed part.
3. The method for machining the outer circle of the high-precision rotating shaft by the eccentric boring tool as claimed in claim 1, wherein the method comprises the following steps: the second processing specifically comprises the following steps:
b1, getting parts, tools and measuring tools to be processed;
b2, assembling parts and aligning the parts for the second time;
b3, rechecking whether the allowance of the fourth-order cylinder (4) to be processed in the whole processing area is uniform;
b4, measuring and recording the diameter D2 of the fourth-step cylinder (4) to be machined before machining, recording the ambient temperature, and roughly adjusting the position of the eccentric boring cutter for the second time according to the diameter D2 before machining;
b5, processing a high-strength rigid rotating shaft with a plating layer by a small margin;
b6, finishing and recording the size of the part.
4. The method for machining the outer circle of the high-precision rotating shaft by the eccentric boring tool as claimed in claim 1, wherein the method comprises the following steps: in the step A2, when a part is clamped, the excircle part of the rotating shaft is used as a positioning cylinder, the first-order cylinder (1) and the third-order cylinder (3) of the rotating shaft are clamped by a clamping mechanism, the hole axes of the first-order cylinder (1) and the fourth-order cylinder (4) to be processed are strictly aligned, the straightness is guaranteed to be less than or equal to 0.005mm, and meanwhile the coaxiality requirement of phi 0.04 is guaranteed.
5. The method for machining the outer circle of the high-precision rotating shaft by the eccentric boring tool as claimed in claim 1, wherein the method comprises the following steps: in the step B2, when a part is clamped, the excircle part of the rotating shaft is used as a positioning cylinder, the first-order cylinder (1) and the third-order cylinder (3) of the rotating shaft are clamped by a clamping mechanism, the hole axes of the first-order cylinder (1) and the fourth-order cylinder (4) to be processed are strictly aligned, the straightness is guaranteed to be less than or equal to 0.005mm, and meanwhile the coaxiality requirement of phi 0.04 is guaranteed.
6. The method for machining the outer circle of the high-precision rotating shaft by the eccentric boring tool as claimed in claim 1, wherein the method comprises the following steps: in the step A4, when the position of the eccentric boring cutter (5) is roughly adjusted, the turning radius of the tool nose of the eccentric boring cutter (5) is equal to the turning radius of the fourth-step cylinder (4) to be machined.
7. The method for machining the outer circle of the high-precision rotating shaft by the eccentric boring tool as claimed in claim 3, wherein the method comprises the following steps: in the step B3, when the position of the eccentric boring cutter (5) is roughly adjusted, the rotating radius of the cutter point of the eccentric boring cutter (5) is equal to the rotating radius of the fourth-step cylinder (4) to be machined.
8. The method for processing the outer circle of the high-precision rotating shaft by the eccentric boring tool as claimed in claim 1 or 3, wherein the method comprises the following steps: and (3) processing with small allowance, wherein the cutting depth of each cutter is less than or equal to 0.1mm, the rotating speed S =200rpm/mm, and the feeding F =100 mm/min.
CN202110354466.1A 2021-03-31 2021-03-31 Method for machining high-precision rotating shaft excircle by using eccentric boring cutter Active CN113182549B (en)

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITMI20131205A1 (en) * 2013-07-18 2015-01-19 Andrea Spa D HEAD FOR BORING AND FACING
CN204262383U (en) * 2014-12-10 2015-04-15 重庆瑞通实业有限公司 A kind of boring cutter handle structure and Excircle machining boring cutter thereof
CN105127461A (en) * 2015-09-16 2015-12-09 浙江同济科技职业学院 Fine-adjustment center water discharging eccentric boring cutter
CN206382572U (en) * 2016-12-30 2017-08-08 潍坊盛瑞动力机械科技有限公司 Compound sleeve boring cutter for processing hole and coaxial annular groove
CN209754039U (en) * 2019-03-11 2019-12-10 潍坊职业学院 Sleeve boring cutter for processing excircle of end of support
CN210817505U (en) * 2019-11-19 2020-06-23 黑龙江鑫源特钢有限公司 Special sleeve device for processing excircle of boring mill

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITMI20131205A1 (en) * 2013-07-18 2015-01-19 Andrea Spa D HEAD FOR BORING AND FACING
CN204262383U (en) * 2014-12-10 2015-04-15 重庆瑞通实业有限公司 A kind of boring cutter handle structure and Excircle machining boring cutter thereof
CN105127461A (en) * 2015-09-16 2015-12-09 浙江同济科技职业学院 Fine-adjustment center water discharging eccentric boring cutter
CN206382572U (en) * 2016-12-30 2017-08-08 潍坊盛瑞动力机械科技有限公司 Compound sleeve boring cutter for processing hole and coaxial annular groove
CN209754039U (en) * 2019-03-11 2019-12-10 潍坊职业学院 Sleeve boring cutter for processing excircle of end of support
CN210817505U (en) * 2019-11-19 2020-06-23 黑龙江鑫源特钢有限公司 Special sleeve device for processing excircle of boring mill

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