CN114193192A - High-precision punching method - Google Patents
High-precision punching method Download PDFInfo
- Publication number
- CN114193192A CN114193192A CN202111626783.0A CN202111626783A CN114193192A CN 114193192 A CN114193192 A CN 114193192A CN 202111626783 A CN202111626783 A CN 202111626783A CN 114193192 A CN114193192 A CN 114193192A
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- Prior art keywords
- punching
- workpiece
- precision
- drilling
- cleaning
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q3/00—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
- B23Q3/02—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine for mounting on a work-table, tool-slide, or analogous part
- B23Q3/06—Work-clamping means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q11/00—Accessories fitted to machine tools for keeping tools or parts of the machine in good working condition or for cooling work; Safety devices specially combined with or arranged in, or specially adapted for use in connection with, machine tools
- B23Q11/0042—Devices for removing chips
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q17/00—Arrangements for observing, indicating or measuring on machine tools
- B23Q17/22—Arrangements for observing, indicating or measuring on machine tools for indicating or measuring existing or desired position of tool or work
Abstract
The invention discloses a high-precision punching method, and relates to the technical field of workpiece processing. The high-precision punching method comprises the following steps: step S1: performing cross scribing on the surface of a punching area on the punched workpiece; step S2: fixing and clamping the punching workpiece, and installing a purging mechanism; step S3: trial punching on the surface of a punched workpiece, and correcting when the workpiece is eccentric; step S4: setting the punching depth, and starting a punching tool; step S5: withdrawing the drill bit when the set depth position is reached; step S6: cleaning the punched holes by using a purging mechanism, and step S7: taking down the punched workpiece from the fixed clamping mechanism, and observing the completion degree; step S8: and finishing high-precision punching. The high-precision punching method provided by the invention has the advantages that effective adaptation is formed by performing links such as punching positioning, punching and hole site cleaning according to the actual processing requirements of the workpiece, and the pertinence and adaptability of workpiece punching processing are enhanced.
Description
Technical Field
The invention relates to the technical field of workpiece processing, in particular to a high-precision punching method.
Background
The workpiece refers to a processing object in the machining process, can be a single part or a combination of a plurality of fixed parts, the processing modes of the workpiece are various, such as turning, milling, planing, grinding, casting, forging and the like, the workpiece further comprises punching processing, and the processing procedures of the workpiece also change along with the change of the processing modes;
the conventional workpiece processing and punching method has a single operation link, is generally simple and fixed for punching, is insufficient in workpiece operation precision and controllability, is difficult to meet the processing requirements of various workpieces, and is not flexible enough in operation and needs to be enhanced in adaptability; therefore, we propose a method of high precision drilling.
Disclosure of Invention
The invention aims to provide a high-precision punching method, which solves the problems in the background by performing links such as punching positioning, punching operation, hole site cleaning and the like.
In order to solve the technical problems, the invention is realized by the following technical scheme:
the invention relates to a high-precision punching method, which comprises a punching positioning link, a punching operation link and a hole site cleaning link;
the operation method of the punching positioning link comprises the following steps:
step S1: performing cross scribing on the surface of a punching area of the punched workpiece, and further comprising a check square and a check circle;
step S2: fixing and clamping the punched workpiece, and installing a purging mechanism on the surface or one side of the workpiece;
step S3: trial punching on the surface of a punched workpiece by using a punching tool, observing whether the hole position is concentric with the scribing circumference or not, and correcting when the hole position is eccentric;
the punching operation link comprises the following steps:
step S4: performing matching calibration aiming at the position of the trial punching, setting the punching depth, and starting a punching tool;
step S5: adjusting the drilling depth and progress by adjusting the distance between the drilling bit and the hole site until reaching the set depth position, and withdrawing the drilling bit;
the hole site cleaning link comprises the following steps:
step S6: cleaning the hole position of the punched hole by using a blowing mechanism, and keeping the same cleaning direction for cleaning during cleaning;
step S7: taking down the punched workpiece from the fixed clamping mechanism, and observing the completion degree;
step S8: and finishing high-precision punching of the machined part.
Preferably, in step S1, the surface of the punched workpiece is scribed, the workpiece processing datum maintaining flatness is determined to be 0.05mm, the perpendicularity of adjacent datums is determined to be 0.05mm, and the check squares and the check circles are used as check lines in the trial punching.
Preferably, the fixing and clamping mechanism for the workpiece punched in step S2 includes a vice clamp or a three-jaw chuck clamp or a pressure plate clamp or other special clamp clamps, preferably a three-jaw chuck clamp.
Preferably, the punching tool in step S3 is selected according to the metal material of the workpiece, and includes a mechanical punching device, a laser punching device and a water drill punching device.
Preferably, the setting of the punching depth in the step S4 is digitally calibrated by a punching bit of the punching device.
Preferably, the stable balance state is maintained when the drill bit is withdrawn in the step S5, and the drill bit is stopped before the withdrawal if necessary.
Preferably, the cleaning mechanism in step S6 includes a fan and an electric cleaning brush, the size of the electric cleaning brush is adapted to the diameter of the hole site, and the fan cleans the surface of the workpiece to be punched.
Preferably, in the step S7, the punching workpiece is removed from the fixed clamping mechanism, the fixed clamping mechanism is returned to the initial state, and a cleaning operation is performed.
The invention has the following beneficial effects:
according to the high-precision punching method, effective adaptation is formed by links of punching positioning, punching, hole site cleaning and the like according to actual processing requirements of workpieces, the flexibility is high, and the pertinence and adaptability of workpiece punching processing are enhanced.
According to the high-precision punching method, each operation link is subjected to fine processing, the punching processing precision of the workpiece is improved, the processing completion degree is improved, and the operation is convenient and efficient.
Of course, it is not necessary for any product in which the invention is practiced to achieve all of the above-described advantages at the same time.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a flow chart of a high precision drilling operation method of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Please refer to fig. 1: the invention relates to a high-precision punching method, which comprises a punching positioning link, a punching operation link and a hole site cleaning link;
the operation method of the punching positioning link comprises the following steps:
step S1: performing cross scribing on the surface of a punching area of the punched workpiece, and further comprising a check square and a check circle; when the surface of a punched workpiece is scribed, firstly determining that the machining reference of the workpiece keeps the flatness of 0.05mm and the perpendicularity of adjacent references is 0.05mm, and using a check square and a check circle as check lines during trial punching; step S2: fixing and clamping the punched workpiece, and installing a purging mechanism on the surface or one side of the workpiece; the fixed clamping mechanism of the punching workpiece comprises a vice jaw, a three-jaw chuck clamp, a pressure plate clamp or other special clamp clamps, and preferably a three-jaw chuck clamp; step S3: trial punching on the surface of a punched workpiece by using a punching tool, observing whether the hole position is concentric with the scribing circumference or not, and correcting when the hole position is eccentric; the punching tool is selected according to the metal material of the workpiece and comprises mechanical punching equipment, laser punching equipment and rhinestone punching equipment;
the punching operation link comprises the following steps:
step S4: performing matching calibration aiming at the position of the trial punching, setting the punching depth, and starting a punching tool; the drilling depth is set by digitally calibrating a drilling bit of the drilling equipment; step S5: adjusting the drilling depth and progress by adjusting the distance between the drilling bit and the hole site until reaching the set depth position, and withdrawing the drilling bit; the stable balance state is kept when the drill bit is withdrawn, and the drill bit is kept to stop rotating before the withdrawal if necessary;
the hole site cleaning link comprises the following steps:
step S6: cleaning the hole position of the punched hole by using a blowing mechanism, and keeping the same cleaning direction for cleaning during cleaning; the cleaning mechanism comprises a fan and an electric cleaning brush, the size of the electric cleaning brush is suitable for the diameter of a hole site, and the fan cleans the surface of a punched workpiece; step S7: taking down the punched workpiece from the fixed clamping mechanism, and observing the completion degree; meanwhile, the fixed clamping mechanism is restored to the initial state, and cleaning operation is carried out; step S8: and finishing high-precision punching of the machined part.
In the scheme, the high-precision drilling method further comprises hole expanding, wherein the hole expanding is used for expanding the machined holes and comprises cast, forged or drilled holes, the axis deviation of the holes can be corrected, the holes can obtain correct geometric shapes and smaller surface roughness, the machining precision is generally IT9-IT10 grade, the surface roughness and Ra are 3.2-6.3 mu m, and the machining allowance of hole expanding is generally 0.2-4 mm; the reaming can be carried out by a drill bit, but when the hole precision requirement is higher, the reaming is often used, the shape of the reaming is similar to that of the drill bit, and the difference is that: the reaming drill is provided with 3-4 cutting edges and no cross edge, the top end of the reaming drill is flat, and the spiral groove is shallow, so that the drill core is thick and solid, has good rigidity, is not easy to deform and has good guidance; the reaming is a processing method for removing a trace metal layer from the wall of a workpiece by using a reamer to improve the size precision and the surface quality of a hole, the processing precision can reach IT6-IT7 level, the surface roughness Ra is 0.4-0.8 mu m, the reamer is a multi-edge cutting tool and is provided with 6-12 cutting edges and smaller vertex angles, the guiding property is good during reaming, the tooth space of the teeth of the reamer is very wide, the cross section of the reamer is large, the rigidity is good, the load on each cutting edge is smaller than that of a reamer when reaming is carried out, and the front angle gamma 0 of each cutting edge is 0 DEG, so that the reaming process is actually a scraping process, particularly, the cutting speed is very low when the reaming is carried out manually, and the influence of cutting heat and vibration cannot be caused, and the hole processing quality is high.
In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The preferred embodiments of the invention disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention. The invention is limited only by the claims and their full scope and equivalents.
Claims (8)
1. A high-precision punching method is characterized by comprising a punching positioning link, a punching operation link and a hole site cleaning link;
the operation method of the punching positioning link comprises the following steps:
step S1: performing cross scribing on the surface of a punching area of the punched workpiece, and further comprising a check square and a check circle;
step S2: fixing and clamping the punched workpiece, and installing a purging mechanism on the surface or one side of the workpiece;
step S3: trial punching on the surface of a punched workpiece by using a punching tool, observing whether the hole position is concentric with the scribing circumference or not, and correcting when the hole position is eccentric;
the punching operation link comprises the following steps:
step S4: performing matching calibration aiming at the position of the trial punching, setting the punching depth, and starting a punching tool;
step S5: adjusting the drilling depth and progress by adjusting the distance between the drilling bit and the hole site until reaching the set depth position, and withdrawing the drilling bit;
the hole site cleaning link comprises the following steps:
step S6: cleaning the hole position of the punched hole by using a blowing mechanism, and keeping the same cleaning direction for cleaning during cleaning;
step S7: taking down the punched workpiece from the fixed clamping mechanism, and observing the completion degree;
step S8: and finishing high-precision punching of the machined part.
2. The method for high-precision drilling according to claim 1, wherein the step S1 is to scribe the surface of the workpiece to be drilled, and the machining standard of the workpiece is determined to maintain the flatness of 0.05mm and the perpendicularity of the adjacent standards is determined to be 0.05mm, and the check squares and the check circles are used as check lines during the trial drilling.
3. The method for high-precision punching according to claim 1, wherein the fixing clamping mechanism for punching the workpiece in the step S2 comprises a vice jaw, a three-jaw chuck clamp, a pressure plate clamp or other special clamp clamps, preferably a three-jaw chuck clamp.
4. A high-precision punching method as claimed in claim 1, wherein the punching tool in step S3 is selected according to the metal material of the workpiece, and comprises a mechanical punching device, a laser punching device and a water drilling punching device.
5. The method for high precision drilling according to claim 1, wherein the setting of the drilling depth in step S4 is digitally calibrated by a drill bit of the drilling device.
6. A method of high precision drilling according to claim 1, wherein the drill bit is withdrawn in step S5 to maintain a stable balance state, and if necessary, the drill bit is stopped before withdrawal.
7. The method for high-precision drilling according to claim 1, wherein the cleaning mechanism in the step S6 comprises a fan and a motor-driven cleaning brush, the motor-driven cleaning brush is sized and dimensioned to fit the hole site diameter, and the fan cleans the surface of the workpiece subjected to drilling.
8. The method for high-precision punching according to claim 1, wherein the punching workpiece is removed from the fixed clamping mechanism in step S7, the fixed clamping mechanism is returned to the initial state, and a cleaning operation is performed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111626783.0A CN114193192A (en) | 2021-12-28 | 2021-12-28 | High-precision punching method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111626783.0A CN114193192A (en) | 2021-12-28 | 2021-12-28 | High-precision punching method |
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| Publication Number | Publication Date |
|---|---|
| CN114193192A true CN114193192A (en) | 2022-03-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202111626783.0A Pending CN114193192A (en) | 2021-12-28 | 2021-12-28 | High-precision punching method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115041751A (en) * | 2022-06-23 | 2022-09-13 | 中国电建集团山东电力建设第一工程有限公司 | High-precision shaft coupling reaming device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2985902A1 (en) * | 2017-02-03 | 2018-08-03 | The Boeing Company | System and method for precisely drilling matched hole patterns using surface mapped features |
| CN111015094A (en) * | 2019-11-27 | 2020-04-17 | 大连金山压缩机制造有限公司 | Rapid and efficient machining and drilling process for supporting arm of gear box |
| CN112719332A (en) * | 2020-12-26 | 2021-04-30 | 中山市胜航机电科技有限公司 | Technological method for machining inverted internal angle of lower paddle |
| CN113399851A (en) * | 2021-07-19 | 2021-09-17 | 青岛隆和源光电科技有限公司 | Efficient punching method |
-
2021
- 2021-12-28 CN CN202111626783.0A patent/CN114193192A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2985902A1 (en) * | 2017-02-03 | 2018-08-03 | The Boeing Company | System and method for precisely drilling matched hole patterns using surface mapped features |
| CN111015094A (en) * | 2019-11-27 | 2020-04-17 | 大连金山压缩机制造有限公司 | Rapid and efficient machining and drilling process for supporting arm of gear box |
| CN112719332A (en) * | 2020-12-26 | 2021-04-30 | 中山市胜航机电科技有限公司 | Technological method for machining inverted internal angle of lower paddle |
| CN113399851A (en) * | 2021-07-19 | 2021-09-17 | 青岛隆和源光电科技有限公司 | Efficient punching method |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115041751A (en) * | 2022-06-23 | 2022-09-13 | 中国电建集团山东电力建设第一工程有限公司 | High-precision shaft coupling reaming device |
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