CN107398606A - A kind of external threading cutter - Google Patents

A kind of external threading cutter Download PDF

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Publication number
CN107398606A
CN107398606A CN201710522868.1A CN201710522868A CN107398606A CN 107398606 A CN107398606 A CN 107398606A CN 201710522868 A CN201710522868 A CN 201710522868A CN 107398606 A CN107398606 A CN 107398606A
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CN
China
Prior art keywords
side wall
cutter
breach
cutter hub
face
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Granted
Application number
CN201710522868.1A
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Chinese (zh)
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CN107398606B (en
Inventor
黄波
孟华
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Wuhan Marine Machinery Plant Co Ltd
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Wuhan Marine Machinery Plant Co Ltd
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Priority to CN201710522868.1A priority Critical patent/CN107398606B/en
Publication of CN107398606A publication Critical patent/CN107398606A/en
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Publication of CN107398606B publication Critical patent/CN107398606B/en
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23GTHREAD CUTTING; WORKING OF SCREWS, BOLT HEADS, OR NUTS, IN CONJUNCTION THEREWITH
    • B23G5/00Thread-cutting tools; Die-heads
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23BTURNING; BORING
    • B23B27/00Tools for turning or boring machines; Tools of a similar kind in general; Accessories therefor

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Milling Processes (AREA)

Abstract

The invention discloses a kind of external threading cutter, belong to screwing tool field.A kind of external threading cutter, suitable for the threading in annular groove, the external threading cutter includes:The cutter hub of cutter head and cuboid-type, the first breach and the second breach are offered on the cutter hub, first breach is extended to the 3rd side wall of the cutter hub by the first side wall of the cutter hub, and the first side wall of the cutter hub and the 3rd side wall are two side walls of opposed on the cutter hub, the cross section of first breach is first end face that is trapezoidal and extending to the cutter hub, the first end face of the cutter hub is the end face of the first side wall one end of the cutter hub, first breach forms the first inclined-plane and the first breach side wall on the cutter hub, and the second sidewall, first inclined-plane and the first breach side wall are sequentially connected.The external threading cutter can realize external threading cutter to externally threaded processing on small circle ring outer wall.

Description

A kind of external threading cutter
Technical field
The present invention relates to screwing tool field, more particularly to a kind of external threading cutter.
Background technology
External screw thread carries out turning using thread turning cutter on the outer wall of workpiece to be processed and is process.
Existing external threading cutter includes:Cutter hub and cutter head, cutter head is vertically set on the end of cutter hub, outside turning During screw thread, cutter hub is installed on knife bar, knife bar is arranged on lathe spindle, adjustment lathe spindle makes cutter hub perpendicular to be processed The outer wall of workpiece, turning is carried out using cutter head.
During the present invention is realized, inventor has found that prior art at least has problems with:
At present, there is a kind of workpiece to be processed, the workpiece to be processed is provided with the small circle ring and large circle of arranged concentric, great circle Ring and small circle ring arranged for interval so that an annular groove is formed between large circle and small circle ring, the workpiece to be processed is needed small Threading on the outer wall of annulus.However, because the annular groove size of part to be processed is smaller, so can not be for existing knife The outer wall having perpendicular to small circle ring is arranged, causes the external screw thread on the small circle ring outer wall of such workpiece to be processed not process.
The content of the invention
In order to solve the problems, such as that prior art can not process the screw thread on the outer wall of small circle ring in annular groove, the present invention is implemented Example provides a kind of external threading cutter.The technical scheme is as follows:
The embodiments of the invention provide a kind of external threading cutter, and suitable for the threading in annular groove, it is special Sign is that the external threading cutter includes:The cutter hub of cutter head and cuboid-type, the cutter hub include the first side wall, second Side wall, the 3rd side wall, the 4th side wall, first end face and second end face, the first end face and second end face are arranged in institute State the both ends of the first side wall, the second sidewall, the 3rd side wall and the 4th side wall, and the first side wall and described 3rd side wall is two side walls of opposed on the cutter hub, and the second sidewall and the 4th side wall are on the cutter hub Two side walls of opposed, the first side wall and the second sidewall are two side walls being adjacently positioned on the cutter hub, The first breach and the second breach are offered on the cutter hub.
First breach is extended to the 3rd side wall of the cutter hub, first breach by the first side wall of the cutter hub Cross section be first end face that is trapezoidal and extending to the cutter hub, the first end face of the cutter hub is the first side of the cutter hub The end face of wall one end, first breach form the first inclined-plane and the first breach side wall, and second side on the cutter hub Wall, first inclined-plane and the first breach side wall are sequentially connected.
Second breach is extended to the 4th side wall of the cutter hub, second breach by the second sidewall of the cutter hub Cross section be first end face that is trapezoidal and extending to the cutter hub, second breach forms the second inclined-plane on the cutter hub With the second breach side wall, and the 3rd side wall, second inclined-plane and the second breach side wall are sequentially connected.
The cutter head is arranged in the second breach side wall at the first end face of the cutter hub.
Specifically, first inclined-plane and the angle of the second sidewall of the cutter hub are 120 °, second inclined-plane and institute The angle for stating the 3rd side wall of cutter hub is 135 °.
Specifically, the first breach side wall, the length ratio of the second breach side wall are 2:3.
Specifically, the first end face of the cutter hub is in tilted layout, and the angle of the first end face and the 4th side wall For obtuse angle.
Further, the angle of the first end face of the cutter hub and the 4th side wall of the cutter hub is 98 °.
Specifically, at the first end face, the minimum range of the first breach side wall to the 4th side wall is A, In the second end face, the minimum range of the second sidewall to the 4th side wall is B, and 2A=B.
Specifically, at the first end face, the minimum range of the first side wall to the second breach side wall is E, In the second end face, the minimum range of the second sidewall to the 4th side wall is D, and E:D=8:15.
Specifically, the cutter head is triangular pyramid type, and the bottom surface of the cutter head and the first breach side wall position of the cutter hub In on same plane, the first gable sides of the cutter head are fixed in the second breach side wall, and the 1st of the cutter head the Side wall relative corner angle in angle are arranged to rounding.
Specifically, the 3rd breach and groove are further opened with the cutter hub, the 3rd breach is by the second of the cutter hub Side wall extends to the 4th side wall of the cutter hub, and the longitudinal section of the 3rd breach is triangle, and the groove is opened in described In the middle part of 3rd breach and extend in the 4th side wall of the cutter hub.
Further, the external threading cutter also includes knife bar and bolt, is offered and the knife on the knife bar The mounting groove that one end shape of the second end face of body is engaged, correspond on the knife bar and bolt installation is offered at the mounting groove Groove, and the mounting groove and the bolt mounting groove are arranged at intervals, and are offered on the bolt mounting groove and are connected with the mounting groove Logical bolt hole, one end of the second end face of the cutter hub are arranged in the mounting groove, and by installed in the bolt hole It is bolted to described in interior in the mounting groove.
The beneficial effect that technical scheme provided in an embodiment of the present invention is brought is:External threading cutter is by by the 3rd side Wall is arranged towards small circle ring, the first side wall of cutter hub is stretched into towards large circle arrangement in annular groove, by cutter head and small circle ring Wall contacts make cutter hub be moved along annular groove, realize external threading cutter to externally threaded processing on small circle ring outer wall.
Brief description of the drawings
Technical scheme in order to illustrate the embodiments of the present invention more clearly, make required in being described below to embodiment Accompanying drawing is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the present invention, for For those of ordinary skill in the art, on the premise of not paying creative work, other can also be obtained according to these accompanying drawings Accompanying drawing.
Fig. 1 is the structural representation that workpiece to be processed provided in an embodiment of the present invention coordinates with external threading cutter;
Fig. 2 is the dimensional structure diagram of external threading cutter provided in an embodiment of the present invention;
Fig. 3 is the mplifying structure schematic diagram of cutter head in Fig. 1 provided in an embodiment of the present invention;
Fig. 4 is the overlooking the structure diagram of external threading cutter provided in an embodiment of the present invention;
Fig. 5 be in Fig. 1 provided in an embodiment of the present invention A-A to structural representation;
Fig. 6 is the structural representation that external threading cutter provided in an embodiment of the present invention coordinates knife bar;
Fig. 7 is the overlooking the structure diagram of knife bar provided in an embodiment of the present invention.
Embodiment
To make the object, technical solutions and advantages of the present invention clearer, below in conjunction with accompanying drawing to embodiment party of the present invention Formula is described in further detail.
Embodiment
The embodiments of the invention provide a kind of external threading cutter, suitable for the threading in annular groove, specifically Ground, as shown in figure 1, workpiece to be processed is provided with the small circle ring a and large circle b of arranged concentric, small circle ring a and large circle b intervals cloth Put so that an annular groove c is formed between small circle ring a and large circle b, needs threading on small circle ring a outer wall.At this In embodiment, small circle ring a and large circle b diameter ratio are 17:22.Annular groove c width is equal to large circle b radius and roundlet The difference of ring a radius.The ratio of the externally threaded depth of thread to be processed and annular groove c width is 11:125.
Fig. 2 is external threading cutter stereogram provided in an embodiment of the present invention.The external threading cutter includes:Cutter head 2 and the cutter hub 1 of cuboid-type.Fig. 2 is external threading cutter stereogram provided in an embodiment of the present invention.With reference to Fig. 2, cutter hub 1 Including the first side wall 1a, second sidewall 1b, the 3rd side wall 3c, the 4th side wall 1d (see Fig. 4), first end face 1e and second end face 1f, first end face 1e and second end face 1f are arranged in the first side wall 1a, second sidewall 1b, the 3rd side wall 3c and the 4th side wall 1d both ends, and the first side wall 1a and the 3rd side wall 1c be cutter hub 1 on opposed two side walls, second sidewall 1b and the 4th Side wall 1d is two side walls of opposed on cutter hub 1, two be adjacently positioned on the first side wall 1a and second sidewall 1b cutter hubs 1 Side wall, the first breach 3 and the second breach 4 is offered on cutter hub 1, the first breach 3 extends to cutter hub by the first side wall 1a of cutter hub 1 1 the 3rd side wall 1c, the cross section of the first breach 3 are first end face 1e that is trapezoidal and extending to cutter hub 1, the first end of cutter hub 1 Face 1e and second end face 1f is respectively the end face at the first side wall 1a of cutter hub 1 both ends, and the first breach 3 forms on cutter hub 1 One inclined-plane 5 and the first breach side wall 6, and second sidewall 1b, the first inclined-plane 5 and the first breach side wall 6 are sequentially connected.
Second breach 4 is extended to the 4th side wall 1d of cutter hub 1, the cross section of the second breach 4 by the second sidewall 1b of cutter hub 1 To be trapezoidal and extend to the first end face 1e of cutter hub 1, the second breach 4 forms the second inclined-plane 7 and the second breach side wall on cutter hub 1 8, and the 3rd side wall 1c, the second inclined-plane 7 and the second breach side wall 8 are sequentially connected.
Fig. 3 is the structural representation of cutter head provided in an embodiment of the present invention.As shown in figure 3, cutter head 2 is arranged on the second breach In side wall 8 at the first end face 1e of cutter hub 1.In the present embodiment, cutter hub 1 can be (wide by 20mm × 20mm × 200mm It is × high × long) white steel bar polishing forms.In processing, cutter hub 1 and cutter head 2 can be processed integrally.
Specifically, referring again to Fig. 1, the second inclined-plane 7 and the 3rd side wall 1c of cutter hub 1 angle a1 are 135 °.The angle It can ensure that the 3rd side wall 1c of cutter hub 1 does not interfere the turning of external threading cutter to act, meanwhile, the angle can also ensure that The overall stress intensity of external threading cutter.
Specifically, Fig. 4 is the overlooking the structure diagram of external threading cutter provided in an embodiment of the present invention.Such as Fig. 4 institutes Show, the first inclined-plane 5 and the second sidewall 1b of cutter hub 1 angle b are 120 °.The angle can ensure the second sidewall 1b of cutter hub 1 The turning of external threading cutter is not interfered to act, meanwhile, the angle can also ensure that the overall stress of external threading cutter Intensity.
Specifically, with reference to Fig. 1 and Fig. 4, the length ratio of the first breach side wall 6, the second breach side wall 8 and cutter hub 1 is 2:3: 10.Proportionate relationship as selection can ensure that the external threading cutter has good stress-bearing capability, and processing used Raw material is minimum, while makes the small volume shared by the external threading cutter.In the present embodiment, the second breach side wall 8 and small The width ratio that threading is needed on annulus a outer wall is 80:67.
Specifically, it is in tilted layout referring again to Fig. 4, the first end face 1e of cutter hub 1, and first end face 1e and the 4th side wall 1d Angle c1 be obtuse angle, second end face 1f and two end faces that first end face 1e is opposed on cutter hub 1.So setting can Reduce cutting when first end face 1e and workpiece to be processed annular groove c contact area, so as to avoid external threading cutter with Interfered in process between workpiece to be processed.
Further, the 4th side wall 1d of the first end face 1e of cutter hub 1 and cutter hub 1 angle c1 can be 98 °.During cutting Cutter hub 1 is gradually moved to inside annular groove c, and the angle can reduce the contact area with the annular groove c of workpiece to be processed, so as to Avoid interfering in process between external threading cutter and workpiece to be processed, consequently facilitating turning external screw thread.
Specifically, at first end face 1e, the minimum range of the first breach side wall 6 to the 4th side wall 1d is A, at the second end At the 1f of face, second sidewall 1b to the 4th side wall 1d minimum range is B, and 2A=B.External threading can be ensured by so setting Cutter is moved stretching into annular groove c, and does not influence external threading cutter threading on small circle ring a outer wall.
Specifically, referring again to Fig. 1, at first end face 1e, minimum ranges of the first side wall 1a to the second breach side wall 8 For E, at second end face 1f, the first side wall 1a to the 3rd side wall 1c minimum range is D, and E:D=8:15.In the present embodiment In, the ratio of E and annular groove c width is 5:8.So setting can be easy to external threading cutter to stretch into annular groove c, lead to The threading of cutter head 2 is crossed, simultaneously, moreover it is possible to ensure the stress-bearing capability of cutter hub 1.
Specifically, Fig. 5 is the sectional view of the first end face of cutter hub provided in an embodiment of the present invention.As shown in figure 5, cutter head 2 For triangular pyramid type, and the bottom surface 2a of cutter head 2 and cutter hub 1 the first breach side wall 6 are in the same plane, and the 1st of cutter head 2 the Angle side wall is fixed in the second breach side wall 8, and on the bottom surface 2a of cutter head 2, the relative drift angle of the first gable sides is rounding 13.The shape of rounding 13 matches with the small circle ring a externally threaded form of thread on cutter head 2.In processing, rounding 13 can be with Polished by abrasive machine.
Specifically, as shown in Figure 2 and Figure 4, the 3rd breach 9 and groove 10 are further opened with cutter hub 1.3rd breach 9 is by knife The second sidewall 1b of body 1 extends to the 4th side wall 1d of cutter hub 1, and the longitudinal section of the 3rd breach 9 is triangle, and groove 10 is opened in On the middle part of 3rd breach 9 and extend on the 4th side wall 1d of cutter hub 1.In the present embodiment, the 3rd breach 9 and the first side wall The angle d1 of plane where 1a is 15 °, and the angle e1 of plane where groove 10 and the first side wall 1a is 45 °, and so setting can Avoiding external threading cutter, external threading cutter interferes with annular groove c, so that outer spiral shell when entering annular groove c Whim cutting knife tool smoothly enters annular groove c.
Specifically, the external threading cutter also includes knife bar 11 and bolt 12.Fig. 6 and Fig. 7 is the structural representation of knife bar Figure.As shown in Figure 6 and Figure 7, the mounting groove being engaged with the second end face 1f of cutter hub 1 one end shape is offered on knife bar 1 11a, correspond on knife bar 11 and bolt mounting groove 11b is offered at mounting groove 11a, and mounting groove 11a and bolt mounting groove 11b intervals Set, the bolt hole connected with mounting groove 11a, the second end face 1f of cutter hub 1 one end installation are offered on bolt mounting groove 11b It is fixed in mounting groove 11a, and by the bolt 12 in bolt hole 11c in mounting groove 11a.The knife bar 11 coordinates spiral shell Bolt 12 can be fastenedly connected with the second end face 1f of cutter hub 1 one end, so as to ensure machining accuracy.
The externally threaded method of external threading tool sharpening provided in an embodiment of the present invention is following is a brief introduction of, specifically It is as follows:
Cutter hub 1 is arranged on lathe, the 3rd side wall 1c of cutter hub 1 is arranged towards small circle ring a, makes the first of cutter hub 1 Side wall 1a is stretched into annular groove c towards large circle b arrangements, by cutter head 2 and small circle ring a wall contacts, and after cutter hub 1 is aligned Moved along annular groove c, realize external threading cutter to externally threaded processing on small circle ring a outer walls.
External threading cutter provided in an embodiment of the present invention, by the way that the 3rd side wall is arranged towards small circle ring, make cutter hub The first side wall towards large circle arrangement stretch into annular groove, the wall contacts of cutter head and small circle ring are made into cutter hub along annular groove It is mobile, external threading cutter is realized to externally threaded processing on small circle ring outer wall, meanwhile, external threading cutter structure letter It is single, it is easy to process.
The foregoing is only presently preferred embodiments of the present invention, be not intended to limit the invention, it is all the present invention spirit and Within principle, any modification, equivalent substitution and improvements made etc., it should be included in the scope of the protection.

Claims (10)

  1. A kind of 1. external threading cutter, suitable for the threading in annular groove, it is characterised in that the external threading Cutter includes:The cutter hub of cutter head and cuboid-type, the cutter hub include the first side wall, second sidewall, the 3rd side wall, the 4th side Wall, first end face and second end face, the first end face and second end face are arranged in the first side wall, second side The both ends of wall, the 3rd side wall and the 4th side wall, and the first side wall and the 3rd side wall are on the cutter hub Two side walls of opposed, the second sidewall and the 4th side wall are two side walls of opposed on the cutter hub, The first side wall and the second sidewall are two side walls being adjacently positioned on the cutter hub, and first is offered on the cutter hub Breach and the second breach,
    First breach is extended to the 3rd side wall of the cutter hub, the horizontal stroke of first breach by the first side wall of the cutter hub Section is first end face that is trapezoidal and extending to the cutter hub, and first breach forms the first inclined-plane and on the cutter hub One breach side wall, and the second sidewall, first inclined-plane and the first breach side wall are sequentially connected;
    Second breach is extended to the 4th side wall of the cutter hub, the horizontal stroke of second breach by the second sidewall of the cutter hub Section is first end face that is trapezoidal and extending to the cutter hub, and second breach forms the second inclined-plane and on the cutter hub Two breach side walls, and the 3rd side wall, second inclined-plane and the second breach side wall are sequentially connected;
    The cutter head is arranged in the second breach side wall at the first end face of the cutter hub.
  2. 2. external threading cutter according to claim 1, it is characterised in that the of first inclined-plane and the cutter hub The angle of two side walls is 120 °, and second inclined-plane and the angle of the 3rd side wall of the cutter hub are 135 °.
  3. 3. external threading cutter according to claim 1, it is characterised in that the first breach side wall and described second The length ratio of breach side wall is 2:3.
  4. 4. external threading cutter according to claim 1, it is characterised in that the first end face of the cutter hub tilts cloth Put, and the angle of the first end face and the 4th side wall is obtuse angle.
  5. 5. external threading cutter according to claim 4, it is characterised in that the first end face of the cutter hub and the knife The angle of 4th side wall of body is 98 °.
  6. 6. external threading cutter according to claim 1, it is characterised in that at the first end face, described first The minimum range of breach side wall to the 4th side wall is A, at the second end face, the second sidewall to the 4th side The minimum range of wall is B, and 2A=B.
  7. 7. external threading cutter according to claim 1, it is characterised in that at the first end face, described first The minimum range of side wall to the second breach side wall is E, at the second end face, the first side wall to the 3rd side The minimum range of wall is D, and E:D=8:15.
  8. 8. external threading cutter according to claim 1, it is characterised in that the cutter head is triangular pyramid type, and described The bottom surface of cutter head and the first breach side wall of the cutter hub are in the same plane, and the first gable sides of the cutter head are fixed on In the second breach side wall, the corner angle that the first gable sides of the cutter head are relative are arranged to rounding.
  9. 9. external threading cutter according to claim 1, it is characterised in that the 3rd breach is further opened with the cutter hub And groove, the 3rd breach are extended to the 4th side wall of the cutter hub, the 3rd breach by the second sidewall of the cutter hub Longitudinal section be triangle, the groove is opened in the middle part of the 3rd breach and extended in the 4th side wall of the cutter hub.
  10. 10. according to the external threading cutter described in claim any one of 1-9, it is characterised in that the external threading knife Tool also includes knife bar and bolt, and the installation being engaged with one end shape of the second end face of the cutter hub is offered on the knife bar Groove, correspond on the knife bar and bolt mounting groove is offered at the mounting groove, and between the mounting groove and the bolt mounting groove Every offering the bolt hole connected with the mounting groove in setting, the bolt mounting groove, the one of the second end face of the cutter hub End is arranged in the mounting groove, and by being bolted in the mounting groove described in the bolt hole.
CN201710522868.1A 2017-06-30 2017-06-30 External thread turning tool Active CN107398606B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201710522868.1A CN107398606B (en) 2017-06-30 2017-06-30 External thread turning tool

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201710522868.1A CN107398606B (en) 2017-06-30 2017-06-30 External thread turning tool

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CN107398606A true CN107398606A (en) 2017-11-28
CN107398606B CN107398606B (en) 2020-07-07

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CN201710522868.1A Active CN107398606B (en) 2017-06-30 2017-06-30 External thread turning tool

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201223953Y (en) * 2008-06-02 2009-04-22 上海重型机器锻件厂 Tool bit for processing annular groove
CN102814559A (en) * 2012-08-17 2012-12-12 武汉船用机械有限责任公司 Threading tool bit, lathe tool and method for machining threads
CN202894372U (en) * 2012-11-21 2013-04-24 郑州市钻石精密制造有限公司 Tool bar of lathe tool
CN203091765U (en) * 2012-09-29 2013-07-31 苏州利森空调制冷有限公司 Grooving cutter for rotor for single-screw-rod refrigeration compressor
CN103551612A (en) * 2013-11-04 2014-02-05 无锡雨田精密工具有限公司 Internally threaded turning tool
CN204867471U (en) * 2015-08-03 2015-12-16 鸿亿成企业有限公司 Lathe tool structure

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201223953Y (en) * 2008-06-02 2009-04-22 上海重型机器锻件厂 Tool bit for processing annular groove
CN102814559A (en) * 2012-08-17 2012-12-12 武汉船用机械有限责任公司 Threading tool bit, lathe tool and method for machining threads
CN203091765U (en) * 2012-09-29 2013-07-31 苏州利森空调制冷有限公司 Grooving cutter for rotor for single-screw-rod refrigeration compressor
CN202894372U (en) * 2012-11-21 2013-04-24 郑州市钻石精密制造有限公司 Tool bar of lathe tool
CN103551612A (en) * 2013-11-04 2014-02-05 无锡雨田精密工具有限公司 Internally threaded turning tool
CN204867471U (en) * 2015-08-03 2015-12-16 鸿亿成企业有限公司 Lathe tool structure

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