CN112008122A - Composite cutter and manufacturing process - Google Patents
Composite cutter and manufacturing process Download PDFInfo
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- CN112008122A CN112008122A CN201910450300.2A CN201910450300A CN112008122A CN 112008122 A CN112008122 A CN 112008122A CN 201910450300 A CN201910450300 A CN 201910450300A CN 112008122 A CN112008122 A CN 112008122A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B51/00—Tools for drilling machines
- B23B51/08—Drills combined with tool parts or tools for performing additional working
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
- B23P15/28—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass cutting tools
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Abstract
The invention relates to a compound cutter, which comprises a cutter head section and a cutter handle section, wherein the cutter head section comprises a fixed core drill section, a twist drill section, a screw cone section, a reamer section and a chamfering cutter section which are sequentially connected into a whole, the fixed core drill section is of a conical drill bit structure, the twist drill section, the screw cone section and the reamer section are of a cylindrical drill structure, the chamfering cutter section is of a frustum-shaped drill structure, the thick end of the chamfering cutter section and the cutter handle section are integrally combined to form the compound cutter, the machining outer diameter of the twist drill section is smaller than the machining outer diameter of the screw cone section, the machining outer diameter of the screw tap section is smaller than the machining outer diameter of the reamer section, and the machining outer diameter of the thick end of the fixed core drill section is smaller than or equal to the. The invention also discloses a manufacturing process of the composite cutter, which comprises the processes of cutter blank processing, finish machining, passivation treatment, demagnetization treatment and the like. The invention integrates a plurality of different drilling processing procedures into one-time drilling processing by adopting the compound cutter, and has the characteristics of processing concentricity meeting the requirement and high production efficiency.
Description
Technical Field
The invention relates to a composite cutter and a manufacturing process, in particular to an improved drilling composite cutter and a manufacturing process, and belongs to the field of drilling cutters.
Background
The drilling tool is used for machining various holes, and various different drilling tools are adopted for multiple times of machining according to the type of the holes. In the process of processing the counter bore with the internal thread, 5 procedures of core fixing processing, drilling processing, tapping processing, reaming processing and chamfering processing are respectively carried out by 5 cutters, so that the problems of time and labor waste, high processing cost, difficulty in guaranteeing the same core degree of a product, high processing rejection rate, slow production rhythm and the like are solved.
Disclosure of Invention
The invention discloses a composite cutter and a manufacturing process, and discloses a new scheme, wherein a plurality of different drilling machining procedures are integrated into one-time drilling machining by adopting the composite cutter, so that the problems of high machining cost, incapability of ensuring the same machining core degree, high rejection rate and low production takt caused by adopting a plurality of cutters to perform multiple times of machining in the conventional scheme are solved.
The composite cutter comprises a cutter head section and a cutter handle section, wherein the cutter head section comprises a fixed core drill section, a twist drill section, a screw cone section, a reamer section and a chamfering cutter section which are sequentially connected into a whole, the fixed core drill section is of a conical drill bit structure, the twist drill section, the screw cone section and the reamer section are of a cylindrical drill structure, the chamfering cutter section is of a frustum-shaped drill structure, the thick end of the chamfering cutter section and the cutter handle section are integrally combined to form the integral composite cutter, the machining outer diameter of the twist drill section is smaller than the machining outer diameter of the screw cone section, the machining outer diameter of the screw tap section is smaller than the machining outer diameter of the reamer section, the machining outer diameter of the thick end of the fixed core drill section is smaller than or equal to the machining outer diameter of the twist drill section, and the machining outer diameter of the thick end.
Further, the processing external diameter of the thin end of the chamfering cutter section of the scheme is equal to the processing external diameter of the reamer section.
The invention also discloses a manufacturing process of the composite cutter, which is characterized by comprising the following steps: processing a cutter blank with reserved processing allowance according to a set size; secondly, machining two ends of the cutter blank, grinding tips at the two ends or performing electric spark perforation at one end, and grinding tips at the other end; processing the outer cylindrical surface of the cutter blank, roughly grinding the outer cylindrical surface of the cutter blank, and finely grinding the outer cylindrical surfaces of the twist drill section, the screw cone section and the reamer section to obtain a cutter blank; fourthly, finely machining a cutter blank by using a numerical control grinding machine to obtain a finished composite cutter; carrying out passivation treatment on the composite cutter finished product; sixthly, demagnetizing the passivated composite cutter finished product.
Further, in step four of this scheme method, adopt numerically control grinder finish machining cutter blank including the step: finely processing a fixed core drilling section; finish machining the twist drill section; thirdly, finely machining the screw tap section; fourthly, finish machining the reamer section; finish machining the chamfering cutter section; sixthly, detecting that the concentric degree of the finished product of the composite cutter is within 0.025 mm.
Further, the manufacturing process of the method also comprises the steps of: and (4) engraving a trademark, a dimension specification and product information on the composite cutter subjected to demagnetization treatment according to the set content.
Furthermore, the manufacturing process of the method also comprises the following steps of: checking whether the edge of the finished product of the composite cutter has the phenomena of back opening and fine opening. And secondly, detecting whether the sizes of all parts of the finished product of the composite cutter meet the requirements. Checking whether the sharp corner edges of the edge removing part of the finished composite cutter are processed with chamfers. And fourthly, checking whether the engraving of the finished composite cutter meets the requirements.
Still further, the manufacturing process of the method also comprises the following packaging steps: and coating the fully-inspected composite cutter finished product with anti-rust oil, wrapping the finished product with oiled paper, and putting the finished product into a packaging box.
Still further, the manufacturing process of the method also comprises the step of labeling: printing a product label according to the requirement, and sticking the product label on an outer package of the product.
The composite cutter and the manufacturing process of the composite cutter integrate a plurality of different drilling machining procedures into one-time drilling machining by adopting the composite cutter, and have the characteristics of meeting the requirement on machining concentricity and having high production efficiency.
Drawings
FIG. 1 is a schematic view of a compound cutting tool.
FIG. 2 is a schematic view of a cross-section A-A of the composite cutting tool of FIG. 1.
FIG. 3 is a schematic view of a section B-B of the composite cutting tool of FIG. 1.
FIG. 4 is a schematic view of a section C-C of the composite cutting tool of FIG. 1.
FIG. 5 is a cross-sectional schematic view of a compound tool machined counterbore.
Wherein, 110 is a core fixing drill section, 120 is a twist drill section, 130 is a screw cone section, 140 is a reamer section, 150 is a chamfer cutter section, and 200 is a cutter handle section.
Detailed Description
As shown in fig. 1 to 4, the composite cutter comprises a cutter head section and a cutter handle section, wherein the cutter head section comprises a fixed core drill section, a twist drill section, a screw cone section, a reamer section and a chamfering cutter section which are sequentially connected into a whole, the fixed core drill section is of a conical drill bit structure, the twist drill section, the screw cone section and the reamer section are of a cylindrical drill structure, the chamfering cutter section is of a frustum-shaped drill structure, the thick end of the chamfering cutter section and the cutter handle section are integrally combined to form the composite cutter, the machining outer diameter of the twist drill section is smaller than the machining outer diameter of the screw cone section, the machining outer diameter of the screw cone section is smaller than the machining outer diameter of the reamer section, the machining outer diameter of the thick end of the fixed core drill section is smaller than or equal to the machining outer diameter of the twist drill section, and the machining outer diameter of the thick. The processing external diameter of the thin end of the chamfering cutter section is preferably equal to the processing external diameter of the reamer section. Above-mentioned scheme adopts the combination cutting tool to integrate into disposable drilling processing with the drilling manufacturing procedure of a plurality of differences, makes and decides core, drilling, tapping, ream, chamfer processing and uses the once-through processing of same cutter and can accomplish to guaranteed the concentricity by the processing product, improved machining precision and machining efficiency by a wide margin.
The invention also discloses a manufacturing process of the composite cutter, which is characterized by comprising the following steps: processing a cutter blank with reserved processing allowance according to a set size; secondly, machining two ends of the cutter blank, grinding tips at the two ends or performing electric spark perforation at one end, and grinding tips at the other end; processing the outer cylindrical surface of the cutter blank, roughly grinding the outer cylindrical surface of the cutter blank, and finely grinding the outer cylindrical surfaces of the twist drill section, the screw cone section and the reamer section to obtain a cutter blank; fourthly, finely machining a cutter blank by using a numerical control grinding machine to obtain a finished composite cutter; carrying out passivation treatment on the composite cutter finished product; sixthly, demagnetizing the passivated composite cutter finished product.
Based on the scheme, in order to realize finish machining of the tool blank, in step four of the method, the step of adopting a numerically controlled grinder to finish the tool blank comprises the following steps: finely processing a fixed core drilling section; finish machining the twist drill section; thirdly, finely machining the screw tap section; fourthly, finish machining the reamer section; finish machining the chamfering cutter section; sixthly, detecting that the concentric degree of the finished product of the composite cutter is within 0.025 mm.
In order to eliminate the magnetism generated by the machining of the cutter, the manufacturing process of the method further comprises the steps of: and (4) engraving a trademark, a dimension specification and product information on the composite cutter subjected to demagnetization treatment according to the set content. Based on the scheme, in order to ensure the processing quality, the manufacturing process of the method also comprises the following steps of: checking whether the edge of the finished product of the composite cutter has the phenomena of back opening and fine opening. And secondly, detecting whether the sizes of all parts of the finished product of the composite cutter meet the requirements. Checking whether the sharp corner edges of the edge removing part of the finished composite cutter are processed with chamfers. And fourthly, checking whether the engraving of the finished composite cutter meets the requirements. Further, the manufacturing process of the method also comprises the following packaging steps: and coating the fully-inspected composite cutter finished product with anti-rust oil, wrapping the finished product with oiled paper, and putting the finished product into a packaging box. Finally, the manufacturing process of the method also comprises the step of labeling: printing a product label according to the requirement, and sticking the product label on an outer package of the product.
The scheme discloses a high-precision hard alloy composite cutter machining process, which adopts a whole hard alloy material, and finishes the processes of core fixing, drilling, tapping, reaming and chamfering once when the cutter is used for machining a product, so as to meet the drawing requirements, as shown in figure 5, the problems that the quality of the product is unstable and the like during machining are solved, the same core degree of a threaded hole and a positioning hole is ensured within 0.025mm, and the dimensional tolerance of the positioning aperture is + 0.005- +0.02 mm. One possible fabrication scheme is as follows: selecting a proper hard alloy blank bar material according to a drawing; blanking according to the length and size requirements of the drawing, and reserving sufficient machining allowance; grinding the centers at two ends or performing electric spark perforation at one end and grinding the centers at the other end; fourthly, grinding the outer circle to be coarse, and finely grinding each step; fifthly, machining the tool finished product by using a numerical control grinding machine; sixthly, optionally adding a tool passivation process procedure according to the processed material to enable the tool to meet the requirements of the processed material and enable the tool to have a good service life; the machining process is a machining process for machining the machining tool, and machining the machining tool is performed on the machining tool; marking, namely marking a trademark, a dimension specification and cutter product information according to the requirements of a drawing; full inspection of the self-skin: checking whether the edge of the cutter has the phenomena of no-position edge grinding such as back cut, tiny cracking and the like; secondly, detecting whether the sizes of all parts of the cutter are within the range required by the drawing; checking whether the acute angles of all parts are processed with chamfers except for the blade parts; checking whether the engraving is standard or not and whether the engraving meets the requirements of drawings or not; the method has the advantages that the finished product is packaged, and is coated with anti-rust oil and wrapped by oiled paper and then placed into a packaging box; the label is pasted, the product label is printed according to the requirement and is pasted on the outer package of the product, so that the internal cutter model can be distinguished conveniently.
Based on the above, the scheme has the following advantages: this cutter adopts five integrative processing methods, makes fixed core, drilling, tapping, reaming, chamfer processing use same cutter, and one-time processing can be accomplished, has guaranteed the concentric degree of being processed the product, makes the machining precision of being processed the product show and improves, and processing time is practiced thrift about four fifths than original process time, and production output has improved about 3 times simultaneously, and cutter use cost also practices thrift about one third, makes manufacturing cost fall at double, has improved market competition. Therefore, compared with the existing similar schemes, the composite cutter and the manufacturing process have prominent substantive characteristics and remarkable progress.
The composite cutter and the manufacturing process of the present invention are not limited to the content disclosed in the specific embodiment, the technical solutions presented in the examples can be extended based on the understanding of those skilled in the art, and the simple alternatives made by those skilled in the art according to the present invention in combination with the common general knowledge also belong to the scope of the present invention.
Claims (8)
1. The compound cutter is characterized by comprising a cutter head section and a cutter handle section, wherein the cutter head section comprises a fixed core drill section, a twist drill section, a screw cone section, a reamer section and a chamfering cutter section which are sequentially connected into a whole, the fixed core drill section is of a conical drill structure, the twist drill section, the screw cone section and the reamer section are of a cylindrical drill structure, the chamfering cutter section is of a frustum-shaped drill structure, the thick end of the chamfering cutter section and the cutter handle section are integrally combined to form the whole compound cutter, the machining outer diameter of the twist drill section is smaller than the machining outer diameter of the screw cone section, the machining outer diameter of the screw cone section is smaller than the machining outer diameter of the reamer section, the machining outer diameter of the thick end of the fixed core drill section is smaller than or equal to the machining outer diameter of the twist drill section, and the machining outer diameter of the thick end of the chamfering cutter section is larger than the machining outer diameter.
2. The compound tool according to claim 1, wherein the machined outer diameter of the thin end of the chamfer cutter segment is equal to the machined outer diameter of the reamer segment.
3. The process for making a composite cutting tool according to claim 1, including the steps of:
processing a cutter blank with reserved processing allowance according to a set size;
secondly, machining two ends of the cutter blank, grinding tips at the two ends or performing electric spark perforation at one end, and grinding tips at the other end;
processing the outer cylindrical surface of the cutter blank, roughly grinding the outer cylindrical surface of the cutter blank, and finely grinding the outer cylindrical surfaces of the twist drill section, the screw cone section and the reamer section to obtain a cutter blank;
fourthly, finely machining a cutter blank by using a numerical control grinding machine to obtain a finished composite cutter;
carrying out passivation treatment on the composite cutter finished product;
sixthly, demagnetizing the passivated composite cutter finished product.
4. The manufacturing process according to claim 3, wherein in step four, the step of finely machining the tool blank by using a numerically controlled grinder comprises the steps of:
finely processing a fixed core drilling section;
finish machining the twist drill section;
thirdly, finely machining the screw tap section;
fourthly, finish machining the reamer section;
finish machining the chamfering cutter section;
sixthly, detecting that the concentric degree of the finished product of the composite cutter is within 0.025 mm.
5. The manufacturing process of claim 3, further comprising the step of-quieting: and (4) engraving a trademark, a dimension specification and product information on the composite cutter subjected to demagnetization treatment according to the set content.
6. The manufacturing process of claim 5, further comprising a full inspection step:
checking whether the edge of the finished product of the composite cutter has the phenomena of back opening and fine opening.
And secondly, detecting whether the sizes of all parts of the finished product of the composite cutter meet the requirements.
Checking whether the sharp corner edges of the edge removing part of the finished composite cutter are processed with chamfers.
And fourthly, checking whether the engraving of the finished composite cutter meets the requirements.
7. The manufacturing process of claim 6, further comprising a packaging step: and coating the fully-inspected composite cutter finished product with anti-rust oil, wrapping the finished product with oiled paper, and putting the finished product into a packaging box.
8. The manufacturing process of claim 7, further comprising the step of labeling: printing a product label according to the requirement, and sticking the product label on an outer package of the product.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910450300.2A CN112008122A (en) | 2019-05-28 | 2019-05-28 | Composite cutter and manufacturing process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910450300.2A CN112008122A (en) | 2019-05-28 | 2019-05-28 | Composite cutter and manufacturing process |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112008122A true CN112008122A (en) | 2020-12-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910450300.2A Pending CN112008122A (en) | 2019-05-28 | 2019-05-28 | Composite cutter and manufacturing process |
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| CN (1) | CN112008122A (en) |
Citations (12)
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|---|---|---|---|---|
| JPS5856719A (en) * | 1981-09-26 | 1983-04-04 | Katsuhiro Matsushita | Combination drill |
| JPH01502012A (en) * | 1987-01-27 | 1989-07-13 | ターチャン，マニュエル・シー | Combined hole making and threading tool |
| US7214009B2 (en) * | 2003-03-05 | 2007-05-08 | Reiner Quanz Gmbh & Co. | Drilling tool |
| US20130058734A1 (en) * | 2011-02-27 | 2013-03-07 | Vladimir D. Volokh | Combined drill and reamer tool |
| CN103192120A (en) * | 2012-01-05 | 2013-07-10 | 广西玉柴机器股份有限公司 | Drilling and reaming combined cutter |
| CN204321266U (en) * | 2014-11-05 | 2015-05-13 | 昆山欧思克精密工具有限公司 | Integrate the composite step drill bit of boring, fraising, chamfering |
| CN105252089A (en) * | 2015-11-27 | 2016-01-20 | 上海科弦精密工具有限公司 | Precision cutting tool for high-hardness die steel |
| CN205888177U (en) * | 2016-08-15 | 2017-01-18 | 扬州市实力五金工具工贸有限公司 | Integral type drilling and tapping cutter of high pressure heater worker precision |
| CN106670550A (en) * | 2015-11-05 | 2017-05-17 | 扬州市实力五金工具工贸有限公司 | Drilling and chamfering synthesis tool and manufacturing method thereof |
| US20170136564A1 (en) * | 2015-11-18 | 2017-05-18 | Shajeng Hardware Co., Ltd. | Multi-sectional Drilling and Tapping Apparatus |
| CN106799510A (en) * | 2015-11-26 | 2017-06-06 | 中国直升机设计研究所 | A kind of advanced composite material (ACM) drilling cutter |
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-
2019
- 2019-05-28 CN CN201910450300.2A patent/CN112008122A/en active Pending
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| JPH01502012A (en) * | 1987-01-27 | 1989-07-13 | ターチャン，マニュエル・シー | Combined hole making and threading tool |
| US7214009B2 (en) * | 2003-03-05 | 2007-05-08 | Reiner Quanz Gmbh & Co. | Drilling tool |
| US20130058734A1 (en) * | 2011-02-27 | 2013-03-07 | Vladimir D. Volokh | Combined drill and reamer tool |
| CN103192120A (en) * | 2012-01-05 | 2013-07-10 | 广西玉柴机器股份有限公司 | Drilling and reaming combined cutter |
| CN204321266U (en) * | 2014-11-05 | 2015-05-13 | 昆山欧思克精密工具有限公司 | Integrate the composite step drill bit of boring, fraising, chamfering |
| CN106670550A (en) * | 2015-11-05 | 2017-05-17 | 扬州市实力五金工具工贸有限公司 | Drilling and chamfering synthesis tool and manufacturing method thereof |
| US20170136564A1 (en) * | 2015-11-18 | 2017-05-18 | Shajeng Hardware Co., Ltd. | Multi-sectional Drilling and Tapping Apparatus |
| CN106799510A (en) * | 2015-11-26 | 2017-06-06 | 中国直升机设计研究所 | A kind of advanced composite material (ACM) drilling cutter |
| CN105252089A (en) * | 2015-11-27 | 2016-01-20 | 上海科弦精密工具有限公司 | Precision cutting tool for high-hardness die steel |
| CN205888177U (en) * | 2016-08-15 | 2017-01-18 | 扬州市实力五金工具工贸有限公司 | Integral type drilling and tapping cutter of high pressure heater worker precision |
| CN207942025U (en) * | 2018-02-08 | 2018-10-09 | 常熟阿诺切削工具有限公司 | One kind drills and reams thread milling chamfering tool |
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