CN112589132A - Pecker type grooving method for machining end face groove and radial groove - Google Patents
Pecker type grooving method for machining end face groove and radial groove Download PDFInfo
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- CN112589132A CN112589132A CN202011402127.8A CN202011402127A CN112589132A CN 112589132 A CN112589132 A CN 112589132A CN 202011402127 A CN202011402127 A CN 202011402127A CN 112589132 A CN112589132 A CN 112589132A
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- groove
- grooving
- face
- cutter
- cutting
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- 238000000034 method Methods 0.000 title claims abstract description 24
- 238000003754 machining Methods 0.000 title claims description 8
- 238000005520 cutting process Methods 0.000 claims abstract description 39
- 239000000463 material Substances 0.000 description 4
- 238000007789 sealing Methods 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 239000000110 cooling liquid Substances 0.000 description 2
- 239000000956 alloy Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000006748 scratching Methods 0.000 description 1
- 230000002393 scratching effect Effects 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
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Classifications
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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
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/18—Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form
- G05B19/19—Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form characterised by positioning or contouring control systems, e.g. to control position from one programmed point to another or to control movement along a programmed continuous path
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- Engineering & Computer Science (AREA)
- Human Computer Interaction (AREA)
- Manufacturing & Machinery (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Automation & Control Theory (AREA)
- Mechanical Engineering (AREA)
- Milling Processes (AREA)
- Turning (AREA)
Abstract
The invention discloses a pecker type grooving method for processing an end face groove and a radial groove, which comprises the steps of setting a grooving cutter, setting a Z-direction starting point position of a groove, a Z-direction part end face position of the groove, a cutting depth and a feeding speed; quickly positioning to the initial position of the grooving; turning according to the feeding speed; when reaching the cutting depth, backing according to the cutter backing amount; and carrying out pecking operation according to the position of the cutter starting point in the Z direction of the groove and the cutting depth. The invention ensures the high-efficiency and high-quality processing of the end surface groove and the radial groove while realizing the chip breaking processing, has simple and easy operation method and certain universality.
Description
Technical Field
The invention relates to the technical field of machining programming of a numerical control lathe, in particular to a peck type grooving method for machining end face grooves and radial grooves.
Background
In the field of aerospace valves, components with end grooves or radial grooves are common components in aerospace valves. Such parts are used for assembling gaskets and O-rings, which play a sealing role during the operation of the shutter. The most important point in the production of valve parts is the sealing part, so the dimensional accuracy requirement of the end surface groove and the radial groove for installing the sealing gasket and the O-shaped ring is higher, most of the parts are made of stainless steel or elastic alloy materials, the strength is high, the plasticity is high, the toughness is good, the thermal expansion coefficient is higher, and the parts belong to materials difficult to process.
The traditional machining method is adopted to machine the end surface groove and the radial groove at present, but certain defects exist. During the turning process, due to its material properties, the swarf is band-shaped and can wrap around the cutting head, which causes several drawbacks:
firstly, the grooving cutter is wound by the strip-shaped cutting chips, so that cooling liquid cannot be sprayed to a working part or less cooling liquid is sprayed to the working part, the temperature of the working part is increased, the machining precision is influenced due to the large thermal expansion coefficient of the material, and the cutter is damaged.
Secondly, as the cutting scraps are in a strip shape, the cutting scraps can damage parts along with the rotation of the main shaft, the surface quality of products is influenced, and the cutting scraps wound on the cutter head can influence the precision and the roughness of the groove.
And thirdly, cutting resistance is caused by winding of chips when the machining is serious, so that the precision of the machine tool is influenced.
Chip cleaning is troublesome and has a certain risk coefficient, which can greatly increase the auxiliary time.
Disclosure of Invention
In view of the above-mentioned disadvantages of the prior art, the present invention provides a peck-type grooving method for forming an end face groove and a radial groove.
In order to achieve the purpose of the invention, the invention adopts the technical scheme that:
a pecker-type grooving method for forming a face groove and a radial groove, comprising the steps of:
s1, setting a grooving cutter, and setting a groove Z-direction starting point position, a groove Z-direction part end face position, a cutting depth and a feeding speed;
s2, quickly positioning to the initial position of the cutting groove;
s3, turning according to the feed speed;
s4, retracting according to the tool retracting amount when reaching the cutting depth amount;
s5, performing pecking operation according to the position of the cutter starting point in the Z direction of the groove and the cutting depth to obtain the current position of the cutter;
s6, judging whether the current position of the grooving cutter reaches the end face position of the part in the Z direction of the groove; if yes, cutting the groove; otherwise, the process returns to step S3.
Further, the feed speed is set to be greater than or equal to the depth cutting amount.
Further, the step S4 is specifically:
and determining the tool retracting amount according to the feeding speed and the cutting depth, and retracting the grooving tool by one tool retracting amount after completing one-time cutting depth according to the feeding speed by adopting a high-speed cutting mode.
Further, the calculation formula of the pecking operation performed according to the starting point position and the depth of the groove Z in the step S5 is as follows:
A`＝A—△K
wherein, A' is the current position of the grooving cutter, and A is the position of the starting point of the groove Z direction.
The invention has the following beneficial effects:
(1) the method realizes high-speed chip breaking, effectively reduces the thermal expansion of materials and blades, greatly improves the processing precision, and improves the service life of the cutter by about 4 times.
(2) Greatly reducing the time for cleaning scrap iron during parking and improving the processing efficiency of the groove by more than 5 times.
(3) Chips are prevented from scratching the product in the grooving process, and the surface quality of the product is greatly improved.
Drawings
FIG. 1 is a schematic flow chart of a pecker-type grooving method for both face grooves and radial grooves according to the present invention;
FIG. 2 is a schematic view of the grooving tool according to an embodiment of the present invention.
Detailed Description
The following description of the embodiments of the present invention is provided to facilitate the understanding of the present invention by those skilled in the art, but it should be understood that the present invention is not limited to the scope of the embodiments, and it will be apparent to those skilled in the art that various changes may be made without departing from the spirit and scope of the invention as defined and defined in the appended claims, and all matters produced by the invention using the inventive concept are protected.
As shown in fig. 1, an embodiment of the present invention provides a peck-type grooving method for forming a face groove and a radial groove, comprising the steps of:
s1, setting a grooving cutter, and setting a groove Z-direction starting point position, a groove Z-direction part end face position, a cutting depth and a feeding speed;
in the embodiment, the end surface groove of a certain ejector rod is taken as an example, a 3mm external grooving cutter is selected according to the size of the end surface groove, the lathe is manufactured and formed in one step, and the lathe is turned by using the characteristics of low cutting depth and large feed.
As shown in FIG. 2, the position of a Z-direction tool starting point of a groove is set as A, and the position of a Z-direction part end surface of the groove is set as B; the cut depth represents the amount of each cut depth, and each cut depth (Δ K) is 0.05 mm; the feeding speed represents the feeding amount of each circle of the main shaft, and the feeding speed (F) is 0.1mm/r (F is not less than delta K).
S2, quickly positioning to the initial position of the cutting groove;
s3, turning according to the feed speed;
s4, retracting according to the tool retracting amount when reaching the cutting depth amount;
in the embodiment, the invention determines the tool withdrawal amount according to the feeding speed and the cutting depth, and the grooving tool is retracted by one tool withdrawal amount after completing one cutting depth according to the feeding speed in a very short time by adopting a high-speed cutting mode.
When the cutting depth reaches 0.05mm, the main shaft does not rotate to one circle because the set feeding speed is greater than or equal to the cutting depth, and the tool retreats according to the tool retreating amount e to break the chips to form chip breaking cutting.
S5, performing pecking operation according to the position of the cutter starting point in the Z direction of the groove and the cutting depth to obtain the current position of the cutter;
in this embodiment, the calculation formula for performing the pecking operation according to the position of the starting point of the slot Z and the depth cutting amount is as follows:
A`＝A—△K
wherein, A' is the current position of the grooving cutter, and A is the position of the starting point of the groove Z direction.
S6, judging whether the current position of the grooving cutter reaches the end face position of the part in the Z direction of the groove; if yes, cutting the groove; otherwise, the process returns to step S3.
In this embodiment, the present invention repeats steps S3 and S4 until the grooving is completed, thereby realizing the peck-type grooving for the machined face groove and the radial groove.
The invention realizes chip breaking processing by changing a programming method, ensures high-efficiency and high-quality processing of the end surface groove and the radial groove, has simple and easy operation method and certain universality.
The principle and the implementation mode of the invention are explained by applying specific embodiments in the invention, and the description of the embodiments is only used for helping to understand the method and the core idea of the invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present invention.
It will be appreciated by those of ordinary skill in the art that the embodiments described herein are intended to assist the reader in understanding the principles of the invention and are to be construed as being without limitation to such specifically recited embodiments and examples. Those skilled in the art can make various other specific changes and combinations based on the teachings of the present invention without departing from the spirit of the invention, and these changes and combinations are within the scope of the invention.
Claims (4)
1. A peck-type grooving method for forming a face groove and a radial groove, comprising the steps of:
s1, setting a grooving cutter, and setting a groove Z-direction starting point position, a groove Z-direction part end face position, a cutting depth and a feeding speed;
s2, quickly positioning to the initial position of the cutting groove;
s3, turning according to the feed speed;
s4, retracting according to the tool retracting amount when reaching the cutting depth amount;
s5, performing pecking operation according to the position of the cutter starting point in the Z direction of the groove and the cutting depth to obtain the current position of the cutter;
s6, judging whether the current position of the grooving cutter reaches the end face position of the part in the Z direction of the groove; if yes, cutting the groove; otherwise, the process returns to step S3.
2. The peck-car grooving method for machining a face groove and a radial groove as claimed in claim 1, wherein the feed speed is set to be greater than or equal to a depth cut.
3. The peck-type grooving method for both face grooves and radial grooves as claimed in claim 2, wherein said step S4 is embodied by:
and determining the tool retracting amount according to the feeding speed and the cutting depth, and retracting the grooving tool by one tool retracting amount after completing one-time cutting depth according to the feeding speed by adopting a high-speed cutting mode.
4. The peck-car grooving method for both face grooves and radial grooves according to claim 3, wherein the calculation formula for the pecking operation in step S5 based on the position of the Z-direction starting point of the groove and the depth of cut is:
A`＝A—△K
wherein, A' is the current position of the grooving cutter, and A is the position of the starting point of the groove Z direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011402127.8A CN112589132A (en) | 2020-12-02 | 2020-12-02 | Pecker type grooving method for machining end face groove and radial groove |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011402127.8A CN112589132A (en) | 2020-12-02 | 2020-12-02 | Pecker type grooving method for machining end face groove and radial groove |
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| CN112589132A true CN112589132A (en) | 2021-04-02 |
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| CN202011402127.8A Pending CN112589132A (en) | 2020-12-02 | 2020-12-02 | Pecker type grooving method for machining end face groove and radial groove |
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Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5113728A (en) * | 1990-10-11 | 1992-05-19 | Medeksza Ludwik A | Method and apparatus for forming intermittent chips when machining a rotating workpiece |
| CN200942431Y (en) * | 2006-09-05 | 2007-09-05 | 太原钢铁(集团)有限公司 | Ring type deep trough turning tool |
| CN102489719A (en) * | 2011-11-16 | 2012-06-13 | 中国南方航空工业(集团)有限公司 | NC (Numerical Control) machining method for oblique end slot of thin-wall workpiece |
| CN102626886A (en) * | 2012-04-20 | 2012-08-08 | 浙江进泰机械设备有限公司 | Bearing ring turning and cutting feed method |
| CN106363199A (en) * | 2016-12-05 | 2017-02-01 | 中航飞机起落架有限责任公司 | Machining tool and machining method for deep and long annular cavity |
| CN107262741A (en) * | 2017-08-11 | 2017-10-20 | 烟台杰瑞石油装备技术有限公司 | A kind of end face groove processing dedicated tool |
| CN110216296A (en) * | 2019-05-30 | 2019-09-10 | 西安法士特汽车传动有限公司 | A kind of thick grooving method reducing processing fork slot cost |
| CN110744071A (en) * | 2019-11-18 | 2020-02-04 | 中国航发贵州黎阳航空动力有限公司 | Method for machining deep and narrow groove with angle |
| CN110744083A (en) * | 2019-09-12 | 2020-02-04 | 武汉船用机械有限责任公司 | Annular groove machining tool and machining method |
| CN111299610A (en) * | 2020-03-13 | 2020-06-19 | 浙江海德曼智能装备股份有限公司 | Variable feed cutting method for processing annular groove |
-
2020
- 2020-12-02 CN CN202011402127.8A patent/CN112589132A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5113728A (en) * | 1990-10-11 | 1992-05-19 | Medeksza Ludwik A | Method and apparatus for forming intermittent chips when machining a rotating workpiece |
| CN200942431Y (en) * | 2006-09-05 | 2007-09-05 | 太原钢铁(集团)有限公司 | Ring type deep trough turning tool |
| CN102489719A (en) * | 2011-11-16 | 2012-06-13 | 中国南方航空工业(集团)有限公司 | NC (Numerical Control) machining method for oblique end slot of thin-wall workpiece |
| CN102626886A (en) * | 2012-04-20 | 2012-08-08 | 浙江进泰机械设备有限公司 | Bearing ring turning and cutting feed method |
| CN106363199A (en) * | 2016-12-05 | 2017-02-01 | 中航飞机起落架有限责任公司 | Machining tool and machining method for deep and long annular cavity |
| CN107262741A (en) * | 2017-08-11 | 2017-10-20 | 烟台杰瑞石油装备技术有限公司 | A kind of end face groove processing dedicated tool |
| CN110216296A (en) * | 2019-05-30 | 2019-09-10 | 西安法士特汽车传动有限公司 | A kind of thick grooving method reducing processing fork slot cost |
| CN110744083A (en) * | 2019-09-12 | 2020-02-04 | 武汉船用机械有限责任公司 | Annular groove machining tool and machining method |
| CN110744071A (en) * | 2019-11-18 | 2020-02-04 | 中国航发贵州黎阳航空动力有限公司 | Method for machining deep and narrow groove with angle |
| CN111299610A (en) * | 2020-03-13 | 2020-06-19 | 浙江海德曼智能装备股份有限公司 | Variable feed cutting method for processing annular groove |
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Application publication date: 20210402 |