CN114951766A - Universal cutter for chamfering circular holes with different diameters and machining method - Google Patents
Universal cutter for chamfering circular holes with different diameters and machining method Download PDFInfo
- Publication number
- CN114951766A CN114951766A CN202210795435.4A CN202210795435A CN114951766A CN 114951766 A CN114951766 A CN 114951766A CN 202210795435 A CN202210795435 A CN 202210795435A CN 114951766 A CN114951766 A CN 114951766A
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- cutter body
- sliding seat
- chamfering
- different diameters
- cutter
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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
- B23B51/00—Tools for drilling machines
- B23B51/10—Bits for countersinking
- B23B51/102—Back spot-facing or chamfering
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B35/00—Methods 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B51/00—Tools for drilling machines
- B23B51/0081—Conical drills
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B2251/00—Details of tools for drilling machines
- B23B2251/24—Overall form of drilling tools
- B23B2251/241—Cross sections of the diameter of the drill
- B23B2251/245—Variable cross sections
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Milling Processes (AREA)
Abstract
A universal cutter for chamfering round holes with different diameters and a machining method thereof comprise a taper shank, a sliding seat, a taper cutter body and a plurality of triangular blades; the conical cutter body is connected to the sliding seat, the upper part of the conical cutter body is provided with a plurality of cutter bands distributed on the same conical surface, each cutter band is fixedly provided with a plurality of triangular blades to form a blade band, the lower part of the conical cutter body is provided with an inclination positioning key along the radial direction, the inclination positioning key is inserted into the inclined plane positioning groove, and one end of the inclination positioning key is connected with the inclination adjusting bolt; the position of the conical cutter body is adjusted through the reducing adjusting bolt, so that accurate reducing of the blade zone is realized, and chamfering processing of round holes with different diameters is completed. The invention realizes the multi-purpose of the cutter, and achieves the effects of large application range, convenient adjustment, cost reduction and high processing efficiency.
Description
Technical Field
The invention relates to a diesel engine manufacturing process, in particular to a universal cutter and a machining method for round hole chamfers with different diameters, and belongs to the technical field of machining.
Background
The marine low-speed diesel engine is the main power of a large-scale ship, and the key large-scale components of the marine low-speed diesel engine comprise a frame, a machine base, a cylinder body and the like. The combined assembly of the marine low-speed diesel engine is generally carried out through the connection of pin holes and screw holes of all parts, the holes on all the parts are more in processing content, the specifications and the sizes of the hole diameters are different, and the traditional processing method is that the holes with different diameters are processed by adopting different chamfer cutters, so that the number of related cutters is large, and the cost is high; in addition, the cutter is frequently replaced in the machining process, so that the production efficiency is low.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: the universal cutter and the processing method for the round hole chamfers with different diameters overcome the defects of the traditional method, the number of special cutters is reduced, the process cost is reduced, and the processing efficiency is improved.
The technical scheme adopted by the invention for solving the technical problem is as follows:
a universal cutter for chamfering round holes with different diameters comprises a taper shank, a sliding seat, a taper cutter body and a plurality of triangular blades; the sliding seat is fixed on the upper end face of the taper shank, the upper end face of the sliding seat is provided with a slope positioning groove along the radial direction of the taper shank, one longitudinal end of the slope positioning groove is opened on the side face of the sliding seat, the other end of the slope positioning groove is a blind end, the blind end is provided with a reducing adjusting bolt which penetrates through the sliding seat and extends into the slope positioning groove, the taper cutter body is connected on the sliding seat, the upper part of the taper cutter body is provided with a plurality of cutter bands which are distributed on the same conical surface, each cutter band is fixedly provided with a plurality of triangular blades to form a cutting edge for processing the round hole chamfer, the lower part of the taper cutter body is provided with a slope positioning key along the radial direction of the taper cutter body, the slope positioning key is inserted in the slope positioning groove, one end of the taper positioning key is connected with the reducing adjusting bolt, the reducing adjusting bolt can drive the taper cutter body by rotating the slope positioning key to move in the slope positioning groove, the position of the conical cutter body is adjusted along the radial direction of the taper shank, so that the turning radius of the blade band is changed, and the conical cutter is suitable for chamfering of round holes with different diameters.
Furthermore, a positioning mandrel and two positioning keys are arranged on the upper end face of the taper shank and used for positioning the sliding seat on the taper shank, the positioning mandrel is located in the center of the upper end face, the two positioning keys are located on two sides of the positioning mandrel, and a center hole matched with the positioning mandrel and a positioning hole matched with the positioning keys are formed in the lower end face of the sliding seat.
Furthermore, the sliding seat is fixed on the taper shank through a sliding seat locking bolt which penetrates through the sliding seat from top to bottom.
Furthermore, the front side surface and the rear side surface of the sliding seat are provided with cutter body locking bolts which penetrate through the sliding seat and extend into the inclined plane positioning grooves, and after the position of the conical cutter body is adjusted by the reducing adjusting bolts, the cutter body locking bolts are screwed tightly and fix the position of the conical cutter body.
Furthermore, the reducing adjusting bolt is provided with scales to realize accurate reducing adjustment of the conical cutter body.
Furthermore, three edges of the triangular blade are provided with cutting edges, and the triangular blade can be rotated and then used alternately.
Further, the taper of the blade zone is determined according to the angle of the round hole chamfer.
The other technical scheme of the invention is as follows:
the machining method for chamfering the round holes with different diameters by adopting the universal cutter is characterized by comprising the following steps of: the universal cutter with the adjustable cutting radius is adopted, the position of the conical cutter body is adjusted through the reducing adjusting bolt, the gyration radius is changed, the accurate reducing of the blade edge is realized, and the chamfering processing of round holes with different diameters is completed.
Further, the processing method comprises the following specific steps:
1) assembling the universal cutter;
2) mounting the universal tool on a machine tool spindle;
3) if the diameter of the round hole processed by chamfering is smaller than the maximum diameter of the conical cutter body, the central shaft of the conical cutter body is concentrically aligned with the central shaft of the taper shank by rotating the reducing adjusting bolt, and the conical cutter body is locked and fixed by the cutter body locking bolt;
4) moving the axis of the machine tool spindle to the central shaft position of the round hole subjected to chamfering processing;
5) trial cutting and measuring and confirming the orifice of the round hole;
6) and chamfering the round hole.
Further, in the step 3), the eccentricity is determined according to the diameter of the circular hole.
The invention has the beneficial effects that:
1. when the conical cutter body and the taper shank are concentric, chamfering of the small-diameter round hole can be completed, and when the conical cutter body and the taper shank are eccentric, chamfering of the large-diameter round hole can be completed, so that one cutter is multipurpose, the number of special cutters is effectively reduced, and the process cost is reduced.
2. Each cutter belt is overlapped into a longer cutting edge zone along the inclined plane of the conical cutter body, and the triangular blades on the four cutter belts participate in cutting at the same time, so that the processing efficiency is higher, and the chamfering of the round hole with a larger diameter range can be realized.
3. The variable diameter adjustment can be realized through the variable diameter adjusting bolt, so that the invention has the advantages of convenient adjustment and simple operation.
Drawings
Fig. 1 is a schematic structural view of the present invention.
Fig. 2 is a left side view of fig. 1.
Fig. 3 is a top view of fig. 1.
Fig. 4 is a right side view of fig. 1.
Fig. 5 is an exploded schematic view of the present invention.
Fig. 6 is a left side view of fig. 5.
Fig. 7 is a top view of fig. 5.
Fig. 8 is a schematic view of the eccentric state of the present invention.
In the figure, the position of the upper end of the main shaft,
the cutter comprises a taper shank 1, a positioning mandrel 2, a positioning key 3, a sliding seat 4, an inclined plane positioning groove 5, a conical cutter body 6, an inclination positioning key 7, a triangular blade 8, a reducing adjusting bolt 9, a sliding seat locking bolt 10, a cutter body locking bolt 11, a cutter belt 12 and an eccentricity s.
Detailed Description
The invention will be described in further detail with reference to the following figures and specific examples, which should not be construed as limiting the scope of the invention.
The invention is used for chamfering the orifices of round holes with different diameters on the parts of the diesel engine, adopts a universal cutter with adjustable cutting radius, adjusts the position of the conical cutter body through the reducing adjusting bolt, changes the gyration radius, realizes accurate reducing of the blade band, and completes the chamfering processing of the round holes with different diameters.
Referring to fig. 1, 2, 3 and 4, the universal cutter comprises a taper shank 1, a sliding seat 4, a conical cutter body 6 and a plurality of triangular blades 8.
Referring to fig. 5, fig. 6 and fig. 7, the taper shank 1 is used for connecting with a spindle of a machine tool, and a positioning mandrel 2 and two positioning keys 3 are arranged on an upper end surface of the taper shank 1 for positioning the sliding seat 4 on the taper shank 1; the positioning core shaft 2 is positioned in the center of the upper end face, and the two positioning keys 3 are positioned on two sides of the positioning core shaft 2.
The sliding seat 4 is fixed on the upper end surface of the taper shank 1, and the lower end surface of the sliding seat 4 is provided with a central hole matched with the positioning core shaft 2 in an inserting way and a positioning hole matched with the positioning key 3 in an inserting way. The upper end face of the sliding seat 4 is provided with a step through hole for fixing, four sliding seat locking bolts 10 are screwed in fixing screw holes in the upper end face of the taper shank 1 from top to bottom through the step through hole, so that the sliding seat 4 is fixed on the taper shank 1, and the head of each sliding seat locking bolt 10 is embedded in the step through hole and is lower than the upper end face of the sliding seat 4. The up end of slide 4 is equipped with inclined plane constant head tank 5, and this inclined plane constant head tank 5 vertically follows the radial of taper shank 1, one end opening in the side of slide 4, the other end are the cecum, and this cecum is equipped with along vertically running through the adjustment screw hole of slide 4, reducing adjusting bolt 9 pass this adjustment screw hole and stretch into in the inclined plane constant head tank 5, this reducing adjusting bolt 9 is superscripted the scale, in order to realize the accurate reducing adjustment of toper cutter body 6. The front side surface and the rear side surface of the sliding seat 4 are provided with cutter body locking bolts 11 which penetrate through the sliding seat 4 and extend into the inclined plane positioning grooves 5, and after the position of the conical cutter body 6 is adjusted by the reducing adjusting bolts 9, the cutter body locking bolts 11 are screwed, so that the conical cutter body 6 and the position of the blade band on the conical cutter body are fixed.
The conical cutter body 6 is connected to the sliding seat 6, the upper part of the conical cutter body is provided with a plurality of cutter belts 12, the cutter belts 12 are uniformly distributed on the same conical surface, in the embodiment, the number of the cutter belts 12 is four, and the cutter belts are distributed in a mutually perpendicular manner on four sides in the central axial direction of the conical cutter body 6; each cutter band 12 is provided with a plurality of cutter positions which are uniformly distributed along a straight line, a plurality of triangular blades 8 are fixed in the cutter positions through screws to form a cutter band for processing the round hole chamfer, and the taper of the cutter band is determined according to the angle of the round hole chamfer. Three edges of the triangular blade 8 are provided with cutting edges which can be rotated for alternate use. The lower part of the conical cutter body 6 is provided with an inclination positioning key 7 along the radial direction of the conical cutter body 6, the inclination positioning key 7 is inserted into the inclined plane positioning groove 5 of the sliding seat 4, and one end of the inclination positioning key 7 is connected with the reducing adjusting bolt 9. The tapered cutter body 6 can be driven by rotating the reducing adjusting bolt 9, and then the inclination positioning key 7 moves in the inclined surface positioning groove 5, so that the position of the tapered cutter body 6 in the radial direction of the taper shank 1 is adjusted, the turning radius of the cutting edge is changed, and the chamfer processing of round holes with different diameters is adapted.
When the universal cutter is used, the central shaft of the conical cutter body 6 is adjusted to be aligned with the central shaft of the taper shank 1, and the central shaft is used for chamfering and machining holes with the diameter smaller than the diameter of the cutter within a set range; the conical cutter body 6 is adjusted to be eccentric with the taper shank 1 and is used for chamfering holes with the diameter of the chamfer being more than or equal to the diameter of the cutter within a set range.
The processing method for the round hole chamfers with different diameters comprises the following specific steps:
1) pre-assembling and pre-locking the universal cutter;
2) mounting the universal tool on a machine tool spindle;
3) twisting a cutter body locking bolt 11 loose, enabling an inclination positioning key 7 at the lower part of a conical cutter body 6 to move radially along an inclined plane positioning groove 5 of a sliding seat 4, rotating a reducing adjusting bolt 9 to enable a central shaft of the conical cutter body 6 to be aligned with a central shaft of a taper shank 1 concentrically, enabling the inner end of the inclination positioning key 7 to be close to the inner end of the inclined plane positioning groove 5 of the sliding seat 4, simultaneously aligning the side surface of the conical cutter body 6 with the side surface scribed line of the sliding seat 4, enabling the inspection to be more intuitive, aligning the conical cutter body 6 with the central shaft of the taper shank 1 concentrically at the moment, twisting the cutter body locking bolt 11 to ensure no looseness, completing center alignment adjustment at the moment, and being used for chamfering a hole with the diameter smaller than the maximum diameter of the conical cutter body 6;
4) the cutter body locking bolt 11 is loosened by twisting to enable the conical cutter body 6 to move, the reducing adjusting bolt 9 is rotated, the conical cutter body 6 is adjusted to have an eccentric amount s with the taper shank 1, and the eccentric amount s is determined according to the diameter of the round hole and is used for chamfering the hole with the diameter larger than or equal to the maximum diameter of the conical cutter body 6;
5) moving a machine tool spindle to the central coordinate position of a hole to be processed;
6) moving the Z or W axis, aligning the triangular blade 8 to the proper position of the hole, and setting an axial coordinate;
7) determining the trial cutting measurement of the hole;
8) and (4) processing the chamfer of the round hole according to the program.
The above description is only for the preferred embodiment of the present invention, and is not intended to limit the scope of the present invention. The scope of the invention as claimed should also include obvious modifications and alternatives to the present invention.
In a word, the invention overcomes the defects of the traditional method, realizes multiple purposes, and achieves the effects of wide application range, convenient adjustment, cost reduction and high processing efficiency.
Claims (10)
1. The utility model provides a general cutter that is used for different diameter round hole chamfers which characterized in that: the universal cutter comprises a taper shank, a sliding seat, a taper cutter body and a plurality of triangular blades; the sliding seat is fixed on the upper end face of the taper shank, the upper end face of the sliding seat is provided with a radial inclined plane positioning groove along the taper shank, one longitudinal end of the inclined plane positioning groove is opened on the side face of the sliding seat, the other end of the inclined plane positioning groove is a blind end, the blind end is provided with a reducing adjusting bolt which penetrates through the sliding seat and extends into the inclined plane positioning groove, the taper cutter body is connected on the sliding seat, the upper part of the taper cutter body is provided with a plurality of cutter bands distributed on the same conical surface, each cutter band is fixedly provided with a plurality of triangular blades to form a cutting band used for processing the round hole chamfer, the lower part of the taper cutter body is provided with an inclination positioning key along the radial direction of the taper cutter body, the inclination positioning key is inserted into the inclined plane positioning groove, one end of the taper positioning key is connected with the reducing adjusting bolt, the reducing adjusting bolt can drive the taper cutter body by rotating the inclination positioning key to move in the inclined plane positioning groove, the position of the conical cutter body in the radial direction of the taper shank is adjusted, so that the turning radius of the blade is changed, and the conical cutter body is suitable for chamfering of round holes with different diameters.
2. The universal tool for chamfering round holes with different diameters as set forth in claim 1, wherein: the upper end face of the taper shank is provided with a positioning mandrel and two positioning keys for positioning the sliding seat on the taper shank, the positioning mandrel is positioned in the center of the upper end face, the two positioning keys are positioned on two sides of the positioning mandrel, and the lower end face of the sliding seat is provided with a center hole matched with the positioning mandrel and a positioning hole matched with the positioning keys.
3. Universal tool for chamfering round holes with different diameters according to claim 1 or 2, characterized in that: the sliding seat is fixed on the taper shank through a sliding seat locking bolt which penetrates through the sliding seat from top to bottom.
4. A universal tool for chamfering round holes with different diameters as set forth in claim 1, wherein: the front side surface and the rear side surface of the sliding seat are provided with cutter body locking bolts which penetrate through the sliding seat and extend into the inclined plane positioning grooves, and after the position of the conical cutter body is adjusted through the reducing adjusting bolts, the cutter body locking bolts are screwed tightly and fix the position of the conical cutter body.
5. The universal tool for chamfering round holes with different diameters as set forth in claim 1, wherein: the reducing adjusting bolt is marked with scales to realize accurate reducing adjustment of the conical cutter body.
6. The universal tool for chamfering round holes with different diameters as set forth in claim 1, wherein: three edges of the triangular blade are provided with cutting edges which can be rotated for alternate use.
7. The universal tool for chamfering round holes with different diameters as set forth in claim 1, wherein: the taper of the blade zone is determined according to the angle of the round hole chamfer.
8. A method for machining round holes with different diameters by using the universal tool as set forth in claim 1, which is characterized in that: the universal cutter with the adjustable cutting radius is adopted, the position of the conical cutter body is adjusted through the reducing adjusting bolt, the gyration radius is changed, the accurate reducing of the blade edge is realized, and the chamfering processing of round holes with different diameters is completed.
9. The machining method for chamfering round holes with different diameters as set forth in claim 8, wherein: the processing method comprises the following specific steps:
1) assembling the universal cutter;
2) mounting the universal tool on a machine tool spindle;
3) if the diameter of the round hole processed by chamfering is smaller than the maximum diameter of the conical cutter body, the central shaft of the conical cutter body is concentrically aligned with the central shaft of the taper shank by rotating the reducing adjusting bolt, and the conical cutter body is locked and fixed by the cutter body locking bolt;
4) moving the axis of the machine tool spindle to the central shaft position of the round hole subjected to chamfering processing;
5) trial cutting and measuring and confirming the orifice of the round hole;
6) and chamfering the round hole.
10. The processing method for chamfering round holes with different diameters as set forth in claim 9, wherein: in the step 3), the eccentricity is determined according to the diameter of the round hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210795435.4A CN114951766A (en) | 2022-07-06 | 2022-07-06 | Universal cutter for chamfering circular holes with different diameters and machining method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210795435.4A CN114951766A (en) | 2022-07-06 | 2022-07-06 | Universal cutter for chamfering circular holes with different diameters and machining method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114951766A true CN114951766A (en) | 2022-08-30 |
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ID=82966883
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210795435.4A Pending CN114951766A (en) | 2022-07-06 | 2022-07-06 | Universal cutter for chamfering circular holes with different diameters and machining method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114951766A (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08174505A (en) * | 1994-12-26 | 1996-07-09 | Amada Co Ltd | Method and apparatus for chamfering |
| JPH09192917A (en) * | 1996-01-18 | 1997-07-29 | Joji Suzuki | Chamfering rotary tool |
| KR19990064519A (en) * | 1999-03-24 | 1999-08-05 | 박헌수 | Hole-chamfering cut tool |
| CN203470931U (en) * | 2013-07-19 | 2014-03-12 | 惠州铂科磁材有限公司 | Chamfering tool for annular magnetic core |
| CN205798470U (en) * | 2016-07-16 | 2016-12-14 | 山西瑞奥科技工贸有限公司 | A kind of multiplex orifice chamfer cutter |
| CN207447372U (en) * | 2017-10-31 | 2018-06-05 | 无锡宏源机电科技股份有限公司 | A kind of centering type trimming tool bit |
| CN207494647U (en) * | 2017-11-23 | 2018-06-15 | 浙江辛子精工机械股份有限公司 | A kind of sheet part aperture chamfering tool |
| CN109304506A (en) * | 2018-09-28 | 2019-02-05 | 江苏科比特科技有限公司 | A kind of side set molding bloom angle cutting tool |
| CN111890052A (en) * | 2020-08-05 | 2020-11-06 | 哈尔滨锅炉厂有限责任公司 | Special chamfering tool for multi-shaft deep hole machining tool |
-
2022
- 2022-07-06 CN CN202210795435.4A patent/CN114951766A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08174505A (en) * | 1994-12-26 | 1996-07-09 | Amada Co Ltd | Method and apparatus for chamfering |
| JPH09192917A (en) * | 1996-01-18 | 1997-07-29 | Joji Suzuki | Chamfering rotary tool |
| KR19990064519A (en) * | 1999-03-24 | 1999-08-05 | 박헌수 | Hole-chamfering cut tool |
| CN203470931U (en) * | 2013-07-19 | 2014-03-12 | 惠州铂科磁材有限公司 | Chamfering tool for annular magnetic core |
| CN205798470U (en) * | 2016-07-16 | 2016-12-14 | 山西瑞奥科技工贸有限公司 | A kind of multiplex orifice chamfer cutter |
| CN207447372U (en) * | 2017-10-31 | 2018-06-05 | 无锡宏源机电科技股份有限公司 | A kind of centering type trimming tool bit |
| CN207494647U (en) * | 2017-11-23 | 2018-06-15 | 浙江辛子精工机械股份有限公司 | A kind of sheet part aperture chamfering tool |
| CN109304506A (en) * | 2018-09-28 | 2019-02-05 | 江苏科比特科技有限公司 | A kind of side set molding bloom angle cutting tool |
| CN111890052A (en) * | 2020-08-05 | 2020-11-06 | 哈尔滨锅炉厂有限责任公司 | Special chamfering tool for multi-shaft deep hole machining tool |
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