CN114769730B - Reamer with adjustable diameter - Google Patents

Reamer with adjustable diameter Download PDF

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Publication number
CN114769730B
CN114769730B CN202210591343.4A CN202210591343A CN114769730B CN 114769730 B CN114769730 B CN 114769730B CN 202210591343 A CN202210591343 A CN 202210591343A CN 114769730 B CN114769730 B CN 114769730B
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CN
China
Prior art keywords
control
cutter body
control rod
degrees
cutter
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Active
Application number
CN202210591343.4A
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Chinese (zh)
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CN114769730A (en
Inventor
胡思龙
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Ningbo Wandefu Precision Machinery Co ltd
Original Assignee
Ningbo Wandefu Precision Machinery Co ltd
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Priority to CN202210591343.4A priority Critical patent/CN114769730B/en
Publication of CN114769730A publication Critical patent/CN114769730A/en
Application granted granted Critical
Publication of CN114769730B publication Critical patent/CN114769730B/en
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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23DPLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
    • B23D77/00Reaming tools
    • B23D77/02Reamers with inserted cutting edges
    • B23D77/04Reamers with inserted cutting edges with cutting edges adjustable to different diameters along the whole cutting length

Abstract

The invention relates to a diameter-adjustable reamer, comprising: the novel cutter comprises a body, a control rod, a first cutter body and a second cutter body, wherein a mounting hole is formed in the middle of the body, the control rod is rotatably arranged in the mounting hole, a first control block and a second control block are arranged at the bottom of the control rod, a first control groove is formed in the first control block, a second control groove is formed in the second control block, the first cutter body is slidably arranged on the body and can extend from the side face of the body, the first cutter body is connected with the first control groove, the second cutter body is slidably arranged on the body and can extend from the side face of the body, and the second cutter body is connected with the second control groove (221). The reamer has the advantages that the control rod is arranged to control the cutting radius of the first cutter body and the cutting radius of the second cutter body, so that different working requirements of the reamer can be met.

Description

Reamer with adjustable diameter
Technical Field
The invention relates to the field of reamers, in particular to a diameter-adjustable reamer.
Background
In the machining process, it is often necessary to punch the parts, and the punching of the holes also requires finishing of the holes. In this process, a reamer is required. The reamer has one or more cutter teeth for use in a rotary cutter for cutting away a thin metal layer from the machined surface of the hole. The hole after reamer machining can obtain accurate size and shape.
In a specific machining, for machining holes with different diameters, reamers with different diameters are required to be used, and a cutter needs to be replaced, so that the cutter is suitable for the diameters of the machining holes.
However, the tool replacement is time-consuming and labor-consuming, and multiple sets of tools need to be prepared, and the production efficiency is affected by searching for the tool replacement tools.
In addition, when the reamer is used for cutting, the error is increased due to the fact that the cutting depth is too large, and the working time is longer and the efficiency is lower due to the fact that the cutting depth is smaller.
Disclosure of Invention
Based on this, it is necessary to provide a reamer with an adjustable diameter in view of the above-mentioned problems.
The invention discloses a diameter-adjustable reamer, which comprises: a body; the middle part of the body is provided with a mounting hole; the control rod is rotatably arranged in the mounting hole, a first control block and a second control block are arranged at the bottom of the control rod, a first control groove is formed in the first control block, and a second control groove is formed in the second control block; the first cutter body is arranged on the body in a sliding manner and can extend out of the side face of the body, and the first cutter body is connected with the first control groove; the second cutter body is arranged on the body in a sliding manner and can extend out of the side face of the body, the second cutter body is connected with the second control groove, and the control rod is rotated to drive the first control block and the second control block to synchronously rotate, so that the first cutter body moves in the first control groove, the second cutter body moves in the second control groove, and the radius of cutting of the first cutter body and the second cutter body can be controlled.
In one embodiment, when the control lever rotates forward by 0 to 90 degrees, the first cutter moves along the first control slot in a direction approaching the control lever, and the second cutter moves along the second control slot in a direction approaching the control lever in synchronization with the first cutter.
In one embodiment, when the control lever is reversely rotated by 0 to 90 degrees, the first cutter body moves away from the control lever along the first control slot, and the second cutter body moves toward the control lever along the second control slot.
In one embodiment, the body is sleeved with a limiting sleeve, the limiting sleeve is in threaded connection with the control rod, the lower end of the limiting sleeve is provided with a limiting ring, the top of the first cutter body is provided with a first abutting part, the top of the second cutter body is provided with a second abutting part, and the control rod can drive the limiting sleeve to move along the axial direction of the body through rotation, and the limiting sleeve is kept in abutting connection with the first abutting part and the second abutting part.
In one embodiment, the body is provided with an avoidance hole, the limit sleeve is provided with an extension part, and the extension part extends into the avoidance hole and is in threaded connection with the control rod.
In one embodiment, the first abutment has a first abutment surface along which the stop collar moves downward when the lever is rotated forward from 0 degrees to 90 degrees.
In one embodiment, the second abutment has a second abutment surface and a third abutment surface, and the stop collar moves downward along the second abutment surface when the lever is rotated forward from 0 degrees to 90 degrees.
In one embodiment, when the lever is rotated in the reverse direction from 0 degrees to 90 degrees, the stop collar moves upward along the first abutment face while the stop collar moves upward along the third abutment face.
The invention has the advantages that:
(1) The control rod is arranged to control the cutting radius of the first cutter body and the second cutter body, so that different working requirements of the reamer can be met;
(2) The first control groove and the second control groove are arranged, the control rod is rotated to control the first cutter body to slide in the first control groove, and the second cutter body is controlled to slide in the second control groove, so that the working positions of the first cutter body and the second cutter body are conveniently controlled, and the operation is simple;
(3) The limiting sleeve is arranged and can be abutted against the first cutter body and the second cutter body, so that the stability of the first cutter body and the second cutter body in working is improved, and the cutting precision is improved;
(4) The limiting sleeve is in threaded connection with the control rod, so that if the limiting sleeve, the first cutter body and the second cutter body can be synchronously controlled by rotating the control rod, and the limiting sleeve can be always abutted against the first cutter body and the second cutter body in the moving process of the cutter bodies, the limiting sleeve can play a limiting role when the first cutter body and the second cutter body are positioned at any positions;
(5) The working states of the first cutter body and the second cutter body can be judged by observing the positions of the limiting sleeves on the body, and the first cutter body and the second cutter body can be conveniently adjusted.
Drawings
FIG. 1 is a perspective view of a diameter adjustable reamer provided by the present invention;
FIG. 2 is a front view of a diameter adjustable reamer provided by the present invention;
FIG. 3 is a cross-sectional view in the state A-A according to FIG. 2 provided by the present invention;
FIG. 4 is a cross-sectional view in the D-D state according to FIG. 3 provided by the present invention;
FIG. 5 is a cross-sectional view in the B-B state according to FIG. 3 provided by the present invention;
FIG. 6 is a cross-sectional view in the C-C state according to FIG. 3 provided by the present invention;
FIG. 7 is a cross-sectional view of the present invention in another operational state according to FIG. 3;
FIG. 8 is a cross-sectional view in the D-D state according to FIG. 7 provided by the present invention;
FIG. 9 is a cross-sectional view in the B-B state according to FIG. 7 provided by the present invention;
FIG. 10 is a cross-sectional view in the C-C state according to FIG. 7 provided by the present invention;
FIG. 11 is a cross-sectional view of the present invention in still another operational state according to FIG. 3;
FIG. 12 is a cross-sectional view in the D-D state according to FIG. 11 provided by the present invention;
FIG. 13 is a cross-sectional view in the B-B state according to FIG. 11 provided by the present invention;
FIG. 14 is a cross-sectional view in the C-C state according to FIG. 11 provided by the present invention;
FIG. 15 is a perspective view of a control lever provided by the present invention;
fig. 16 is a perspective view of the stop collar provided by the present invention.
In the figure, a main body 1, a mounting hole 11, a relief hole 12, a control lever 2, a first control block 21, a first control groove 211, a second control block 22, a second control groove 221, a first cutter body 3, a first abutting portion 31, a second cutter body 4, a second abutting portion 41, a stop collar 5, an extension portion 51, and a stop collar 52.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
It will be understood that when an element is referred to as being "mounted" to another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "secured to" another element, it can be directly secured to the other element or intervening elements may also be present.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "or/and" as used herein includes any and all combinations of one or more of the associated listed items.
As shown in fig. 1 and 16, the present invention discloses a diameter-adjustable reamer, which includes: the cutter comprises a body 1, a control rod 2, a first cutter body 3 and a second cutter body 4, wherein a mounting hole 11 is formed in the middle of the body 1, the control rod 2 is rotatably arranged in the mounting hole 11, a first control block 21 and a second control block 22 are arranged at the bottom of the control rod 2, a first control groove 211 is formed in the first control block 21, a second control groove 221 is formed in the second control block 22, the first cutter body 3 is slidably arranged on the body 1 and can extend from the side surface of the body 1, the first cutter body 3 is connected with the first control groove 211, the second cutter body 4 is slidably arranged on the body 1 and can extend from the side surface of the body 1, the second cutter body 4 is connected with the second control groove 221, and the first control block 21 and the second control block 22 can be driven to synchronously rotate by rotating the control rod 2, so that the first cutter body 3 moves in the first control groove 211, and the second cutter body 4 can move in the first control groove 221, and the second cutter body 4 can move in the first cutter body 3 and the second cutter body 4 can control the radius 4.
It can be appreciated that the cutting radius is smaller, more accurate machining can be performed, but the machining efficiency is lower, and the machining efficiency can be effectively improved by increasing the cutting radius, so that different machining requirements are met, the reamer has larger machining flexibility, and the reamer is suitable for various machining conditions.
Further, by providing the first cutter body 3 and the second cutter body 4, and controlling the positions of the second cutter body 4 and the second cutter body 4, the first cutter body 3 and the second cutter body 4 can form a gradient cutting, and it is understood that the cutting depth affects the machining efficiency, but an excessive cutting depth reduces the cutting angle, and the cutter body is easily damaged, and the cutting radius formed by the first cutter body 3 and the second cutter body 4 is distributed in a gradient manner, so that the stepwise cutting can be improved, the deeper cutting depth is formed, and the better cutting accuracy can be obtained.
Preferably, when the lever 2 is rotated in the forward direction by 0 to 90 degrees, the first blade body 3 moves along the first control groove 211 in a direction approaching the lever 2, and the second blade body 4 moves along the second control groove 221 in a direction approaching the lever 2 in synchronization with the first blade body 3.
Preferably, when the lever 2 is reversely rotated by 0 to 90 degrees, the first blade body 3 moves along the first control groove 211 in a direction away from the lever 2, and the second blade body 4 moves along the second control groove 221 in a direction toward the lever 2.
Preferably, the body 1 is sleeved with a stop collar 5, the stop collar 5 is in threaded connection with the control rod 2, a stop collar 52 is arranged at the lower end of the stop collar 5, a first abutting portion 31 is arranged at the top of the first cutter body 3, a second abutting portion 41 is arranged at the top of the second cutter body 4, and the control rod 2 can be rotated to drive the stop collar 5 to move along the axial direction of the body 1 and keep abutting with the first abutting portion 31 and the second abutting portion 41.
Preferably, the body 1 is provided with a relief hole 12, the stop collar 5 has an extension portion 51, and the extension portion 51 extends into the relief hole 12 and is in threaded connection with the control rod 2.
Preferably, the first abutting portion 31 has a first abutting surface 311, and the stop collar 5 moves downward along the first abutting surface 311 when the control lever 2 is rotated from 0 degrees to 90 degrees in the forward direction.
Preferably, the second abutting portion 41 has a second abutting surface 411 and a third abutting surface 412, and the stop collar 5 moves downward along the second abutting surface 411 when the control lever 2 is rotated from 0 degrees to 90 degrees in the forward direction.
Preferably, when the lever 2 is reversely rotated from 0 degrees to 90 degrees, the stop collar 5 moves upward along the first abutment surface 311, and at the same time, the stop collar 5 moves upward along the third abutment surface 412.
In this embodiment, the first control block 21 is provided with two first control grooves 211 that are centrally symmetrical, the second control block 22 is provided with two second control grooves 221 that are centrally symmetrical, the body 1 is symmetrically provided with two first cutter bodies 3 and two second cutter bodies 4, when the control rod 2 rotates, the two first cutter bodies 3 and two second cutter bodies 4 can be synchronously controlled to move, so that the cutting efficiency of the reamer can be improved, balance and stability can be maintained when the reamer rotates, and as can be seen in conjunction with fig. 3 and 4, the limiting ring can be simultaneously abutted against the two first cutter bodies 3 and the two second cutter bodies 4.
It should be noted that, since the two first control grooves 211 are arranged in a central symmetry manner, the head end of one first control groove 211 is close to the tail end of the other first control groove 211, and a certain space is required for connecting the first cutter body 3 with the first control groove 211, so that the control rod 2 cannot be rotated 90 degrees completely, that is, in practical application, the maximum rotation angle of the control rod 2 is smaller than 90 degrees, and as shown in fig. 5, 9 and 13, the control rod 2 cannot be rotated 90 degrees completely and is only in a state of being close to 90 degrees when being rotated forward to the maximum angle and rotated backward to the maximum angle, which is not coincident with each other, as will be understood by those skilled in the art.
The working mode of the invention is as follows: as shown in fig. 2 to fig. 6, the reamer is in an initial state, the stop collar 5 is located at a middle position, and the extension lengths of the first cutter body 3 and the second cutter body 4 are the same, so that the cutting radius of the first cutter body 3 and the cutting radius of the second cutter body 4 are the same during reamer processing, and as shown in fig. 7 to fig. 10, the control rod 2 is rotated forward by 90 degrees, the first cutter body 3 moves along the first control groove 211, and the second cutter body 4 moves along the second control groove 221, so that the extension lengths of the first cutter body 3 and the second cutter body 4 are synchronously reduced, and further accurate cutting can be performed; referring to fig. 11 to 14, the reamer reversely rotates 90 degrees from the initial state to the illustrated position, at this time, the first cutter body 3 extends outwards, and the first cutter body 3 is folded inwards, so that a gradient structure with a large upper part and a small lower part is formed, and the reamer can cut step by step, thereby improving the working efficiency.
It should be noted that the first cutter body 3 is provided with the first abutting portion 31, the second cutter body 4 is provided with the second abutting portion 41, and the stop collar 5 is in threaded connection with the control rod 2, so that when the control rod 2 rotates to control the working positions of the first cutter body 3 and the second cutter body 4, the stop collar 5 can be driven to move along the control rod 2 at the same time, and the stop collar 52 is kept in a state of abutting against the first abutting portion 31 and the second abutting portion 41, so that the stability of the first cutter body 3 and the second cutter body 4 during cutting can be improved.
The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.
The above examples illustrate only a few embodiments of the invention, which are described in detail and are not to be construed as limiting the scope of the invention. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the invention, which are all within the scope of the invention. Accordingly, the scope of protection of the present invention is to be determined by the appended claims.

Claims (2)

1. A diameter adjustable reamer, comprising:
a body; the middle part of the body is provided with a mounting hole;
the control rod is rotatably arranged in the mounting hole, a first control block and a second control block are arranged at the bottom of the control rod, a first control groove is formed in the first control block, and a second control groove is formed in the second control block;
the first cutter body is arranged on the body in a sliding manner and can extend out of the side face of the body, and the first cutter body is connected with the first control groove;
the second cutter body is arranged on the body in a sliding way and can extend out of the side face of the body, the second cutter body is connected with the second control groove,
the control rod is rotated to drive the first control block and the second control block to synchronously rotate, so that the first cutter body moves in the first control groove, the second cutter body moves in the second control groove, the cutting radius of the first cutter body and the second cutter body can be controlled,
when the control rod rotates forward for 0 to 90 degrees, the first cutter body moves along the first control groove towards the direction approaching the control rod, the second cutter body moves along the second control groove and the first cutter body synchronously towards the direction approaching the control rod,
when the control rod reversely rotates for 0 to 90 degrees, the first cutter body moves along the first control groove in a direction away from the control rod, the second cutter body moves along the second control groove in a direction close to the control rod,
the body is sleeved with a limit sleeve, the limit sleeve is in threaded connection with the control rod, the lower end of the limit sleeve is provided with a limit ring, the top of the first cutter body is provided with a first abutting part, the top of the second cutter body is provided with a second abutting part, the limit sleeve can be driven to move along the axial direction of the body by rotating the control rod and is kept to be abutted with the first abutting part and the second abutting part,
the body is provided with an avoidance hole, the limit sleeve is provided with an extension part, the extension part extends into the avoidance hole and is in threaded connection with the control rod,
the first abutting part is provided with a first abutting surface, when the control rod positively rotates from 0 degrees to 90 degrees, the limiting sleeve moves downwards along the first abutting surface,
the second abutting portion is provided with a second abutting surface and a third abutting surface, and when the control rod rotates from 0 degrees to 90 degrees in the forward direction, the limiting sleeve moves downwards along the second abutting surface.
2. The diameter adjustable reamer of claim 1, wherein when the lever is rotated in a reverse direction from 0 degrees to 90 degrees, the stop collar moves upwardly along the first abutment face while the stop collar moves upwardly along the third abutment face.
CN202210591343.4A 2022-05-27 2022-05-27 Reamer with adjustable diameter Active CN114769730B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202210591343.4A CN114769730B (en) 2022-05-27 2022-05-27 Reamer with adjustable diameter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202210591343.4A CN114769730B (en) 2022-05-27 2022-05-27 Reamer with adjustable diameter

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CN114769730A CN114769730A (en) 2022-07-22
CN114769730B true CN114769730B (en) 2024-03-12

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Citations (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB134452A (en) * 1919-02-08 1919-11-06 James Long Improvements in Built-up Milling Cutters, Reamers, and like Cutting Tools.
FR501544A (en) * 1919-07-07 1920-04-16 Henri Chapier Extendable blade reamer
US4043012A (en) * 1975-11-17 1977-08-23 North American Products Corporation Axially and radially adjustable cutter insert for rotary cutting tool
JPS6130343A (en) * 1984-07-23 1986-02-12 Honda Motor Co Ltd Combined machining device for boring and honing
JP2001105231A (en) * 1999-10-04 2001-04-17 Mk Tool:Kk Reamer capable of fine adjustment of machining dimension in reaming machining
JP2002059314A (en) * 2000-06-06 2002-02-26 Fuji Seiko Ltd Machining tool
DE202004001293U1 (en) * 2004-01-29 2004-05-06 Bta-Tiefbohrsysteme Gmbh Deep boring system has two diametrically opposite cutting blades on a rotating mounting inside an outer grip sleeve with radial grip bars to secure in the bore
WO2008155104A1 (en) * 2007-06-20 2008-12-24 MAPAL Fabrik für Präzisionswerkzeuge Dr. Kress KG Expandable reamer
JP2010094750A (en) * 2008-10-14 2010-04-30 Sugino Mach Ltd Compound working tool
CN102039524A (en) * 2009-10-21 2011-05-04 速技能机械有限公司 Complex machine tools and processing methods
CN102581751A (en) * 2010-12-14 2012-07-18 速技能机械有限公司 Combined processing tool
CN205324874U (en) * 2015-12-08 2016-06-22 太仓瑞鼎精密机械科技有限公司 Welding reamer with adjustable processing major diameter hole
CN205362711U (en) * 2015-10-21 2016-07-06 富鼎电子科技(嘉善)有限公司 Cutting instrument
CN110497027A (en) * 2019-08-31 2019-11-26 厦门曦哲贸易有限公司 A kind of outer diameter adjustable reamer based on spiral fluted disc
CN211966160U (en) * 2020-02-28 2020-11-20 苏州睿摩精密刀具有限公司 Reamer fine-adjustment jig
CN112449616A (en) * 2018-07-20 2021-03-05 本田技研工业株式会社 Machining tool
CN113211115A (en) * 2021-05-27 2021-08-06 津上精密机床(浙江)有限公司 Stable collet chuck structure and machine tool applying same
CN215698494U (en) * 2021-06-02 2022-02-01 无锡锐威精密刀具有限公司 Combined PCD stepped reamer

Patent Citations (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB134452A (en) * 1919-02-08 1919-11-06 James Long Improvements in Built-up Milling Cutters, Reamers, and like Cutting Tools.
FR501544A (en) * 1919-07-07 1920-04-16 Henri Chapier Extendable blade reamer
US4043012A (en) * 1975-11-17 1977-08-23 North American Products Corporation Axially and radially adjustable cutter insert for rotary cutting tool
JPS6130343A (en) * 1984-07-23 1986-02-12 Honda Motor Co Ltd Combined machining device for boring and honing
JP2001105231A (en) * 1999-10-04 2001-04-17 Mk Tool:Kk Reamer capable of fine adjustment of machining dimension in reaming machining
JP2002059314A (en) * 2000-06-06 2002-02-26 Fuji Seiko Ltd Machining tool
DE202004001293U1 (en) * 2004-01-29 2004-05-06 Bta-Tiefbohrsysteme Gmbh Deep boring system has two diametrically opposite cutting blades on a rotating mounting inside an outer grip sleeve with radial grip bars to secure in the bore
WO2008155104A1 (en) * 2007-06-20 2008-12-24 MAPAL Fabrik für Präzisionswerkzeuge Dr. Kress KG Expandable reamer
JP2010094750A (en) * 2008-10-14 2010-04-30 Sugino Mach Ltd Compound working tool
CN102039524A (en) * 2009-10-21 2011-05-04 速技能机械有限公司 Complex machine tools and processing methods
CN102581751A (en) * 2010-12-14 2012-07-18 速技能机械有限公司 Combined processing tool
CN205362711U (en) * 2015-10-21 2016-07-06 富鼎电子科技(嘉善)有限公司 Cutting instrument
CN205324874U (en) * 2015-12-08 2016-06-22 太仓瑞鼎精密机械科技有限公司 Welding reamer with adjustable processing major diameter hole
CN112449616A (en) * 2018-07-20 2021-03-05 本田技研工业株式会社 Machining tool
CN110497027A (en) * 2019-08-31 2019-11-26 厦门曦哲贸易有限公司 A kind of outer diameter adjustable reamer based on spiral fluted disc
CN211966160U (en) * 2020-02-28 2020-11-20 苏州睿摩精密刀具有限公司 Reamer fine-adjustment jig
CN113211115A (en) * 2021-05-27 2021-08-06 津上精密机床(浙江)有限公司 Stable collet chuck structure and machine tool applying same
CN215698494U (en) * 2021-06-02 2022-02-01 无锡锐威精密刀具有限公司 Combined PCD stepped reamer

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