CN109014263B - Adjustable over-positioning knife handle and adjusting method thereof - Google Patents

Adjustable over-positioning knife handle and adjusting method thereof Download PDF

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Publication number
CN109014263B
CN109014263B CN201810925775.8A CN201810925775A CN109014263B CN 109014263 B CN109014263 B CN 109014263B CN 201810925775 A CN201810925775 A CN 201810925775A CN 109014263 B CN109014263 B CN 109014263B
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China
Prior art keywords
adjusting ring
adjusting
ring
main shaft
adjustable over
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Active
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Chinese (zh)
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CN109014263A (en
Inventor
刘光耀
冷进明
唐仕东
向志杨
谢鸿
邓亚弟
王春江
税妍
贠庆芳
王强
王庆国
薛强
刘义
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Dongfang Electric Wuhan Nuclear Equipment Co ltd
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DEC Dongfang Turbine Co Ltd
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Priority to CN201810925775.8A priority Critical patent/CN109014263B/en
Publication of CN109014263A publication Critical patent/CN109014263A/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B31/00—Chucks; Expansion mandrels; Adaptations thereof for remote control
    • B23B31/006—Conical shanks of tools
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q3/00—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
    • B23Q3/12—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine for securing to a spindle in general

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Cutting Tools, Boring Holders, And Turrets (AREA)
  • Jigs For Machine Tools (AREA)

Abstract

The invention relates to the technical field of machine tool machining, and discloses an adjustable over-positioning knife handle and an adjusting method thereof. The adjusting ring I can be conveniently and quickly adjusted to be in contact with and tightly pushed against the front end face of the main shaft, the adjusting efficiency is high, the adaptability to different machine tools and different clearance values is good, a large amount of match grinding work is not required to be performed in a targeted mode, the labor intensity of workers is reduced, and the mounting efficiency is improved.

Description

Adjustable over-positioning knife handle and adjusting method thereof
Technical Field
The invention relates to the technical field of machine tool machining, in particular to an adjustable over-positioning tool shank and an adjusting method thereof.
Background
The tool shank used under the general working condition is arranged on the machine tool, and after the tool shank is tensioned by a machine tool pull claw, a gap is formed between the tool shank 20 and the front end surface 7 of the main shaft, as shown in figure 1; the over-positioning tool shank mainly refers to double-sided positioning of a taper shank of the tool shank and a flange end face 21 of the tool shank, wherein the flange end face 21 of the tool shank and a front end face 7 of a machine tool spindle are just attached and tightly propped to realize positioning when the tool shank is tensioned by a machine tool, as shown in fig. 2.
Currently, over-set tool shanks have been produced and used in large quantities, such as HSK shanks, capto shanks, BIG-PLUSD shanks from BIG, Japan, heavy over-set tool shanks from komet, and the like. The three kinds of tool shanks are integrated, namely the tool shanks are manufactured precisely, and the tool shanks deform slightly when being tensioned, so that the interference between the main shank and the end face of the tool shank is about 0.005um, the tool shanks are high in manufacturing precision and high in price, and the tool shank has high requirements on the use of a machine tool. The tool shank for the heavy machining of BT60 of komet company is usually made in a non-standard mode, is integral, is also provided with an adjusting gasket on a standard shank to achieve the over-positioning effect, and needs to be matched with a machine tool for use so as to ensure the over-positioning effect.
komet adds the adjustment shim class handle of a knife, is according to the specific handle of a knife that uses on different lathe, corresponds respectively and measures handle of a knife flange terminal surface and the preceding terminal surface clearance of lathe main shaft, as shown in figure 1. According to the actual measured end face clearance value, adjusting shims with proper thickness are ground in a matching mode, the ground adjusting shims are installed on the corresponding tool handles and used on a specified machine tool (namely the machine tool for measuring the end face clearance value), the tool handle over-positioning using effect is achieved, the existing over-positioning tool handle mass using technology is also achieved, and the tool handle over-positioning using technology has adaptability to the machine tool. The over-positioning tool shank is a 'preparation' method, gaps between the front end faces of the same machine tool spindle and different tool shanks or between the same tool shank and different machine tool spindles are random, and when one gap value is measured, a gasket is required to be prepared and ground correspondingly, so that the gasket is prepared and ground for a long time and is high in cost, and the over-positioning tool shank can only be used on a specified machine tool and the tool shank.
Therefore, due to the randomness of the end face clearance, the number of manufactured adjusting gaskets is large, the manufacturing time is long, the labor cost and the time cost are high, the adjusting gaskets are required to be used according to a specified machine tool and a tool shank and cannot be changed at will, and huge workload is brought to the management of the tool shank and the adjusting gaskets.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: aiming at the existing problems, the adjustable over-positioning knife handle and the adjusting method thereof are provided, the structure is stable and reasonable, the cost is low, the adjusting ring I can be conveniently and quickly adjusted to be in contact with and tightly pushed against the front end face of the main shaft, the adjusting efficiency is high, the adaptability to different machine tools and different clearance values is good, a large amount of grinding work is not required to be performed in a targeted manner, the labor intensity of workers is reduced, and the mounting efficiency is improved.
The technical scheme adopted by the invention is as follows: the utility model provides an cross location handle of a knife with adjustable, the handle of a knife includes cone portion and cylinder portion, cone portion is used for the conical hole of fixed mounting at lathe main shaft front end, cylinder portion's rear end has the regulation section, the cover is equipped with adjustable ring one on the regulation section, adjustable ring one can axial displacement adjusts on the regulation section, adjustable ring one is used for pushing up tightly backward terminal surface before the main shaft, the last external screw thread that has of cylinder portion, be used for threaded connection adjustable ring two, adjustable ring two can axial displacement adjusts on the cylinder portion, adjustable ring two are used for pushing up tightly backward adjustable ring one.
According to the arrangement, the adjusting ring I is conveniently and quickly adjusted to be in contact with the front end face of the main shaft, the adjusting ring I is pushed by the adjusting ring II to tightly push the front end face of the main shaft, the adjusting ring I is locked, the adjusting efficiency is high, the adaptability to different machine tools and different clearance values is good, a large amount of match grinding work is not needed to be performed in a targeted mode, the labor intensity of workers is reduced, and the mounting efficiency is improved.
According to the adjustable over-positioning knife handle, the rear end of the cylindrical body is provided with the adjusting step, the adjusting step is located at the front end of the adjusting section, the external thread is arranged on the outer circle surface of the adjusting step, and the adjusting ring II is in threaded connection with the adjusting step.
So set up, the external screw thread directly sets up in adjusting step excircle surface, can confirm the axis length of adjusting the step according to external screw thread axial length, only needs one section axial distance on the cylinder portion to set up the external screw thread, need not to set up the external screw thread at the cylinder portion surface of adjusting the step front end, has practiced thrift external screw thread process time.
The adjustable over-positioning knife handle is characterized in that the front end of the first adjusting ring is provided with an inner conical surface, the rear end of the second adjusting ring is provided with an outer conical surface, and the outer conical surface is used for being attached to and tightly propping against the inner conical surface and is matched with the inner conical surface.
According to the arrangement, when the adjusting ring II pushes the adjusting ring backwards, the outer conical surface of the adjusting ring II is in contact with the inner conical surface of the adjusting ring I in a fitting manner, so that the resultant force direction of the adjusting ring II to the adjusting ring I is perpendicular to the inner conical surface and the outer conical surface, and the adjusting ring II can stably and reliably push the adjusting ring I against the front end surface of the main shaft.
According to the adjustable over-positioning knife handle, the adjusting section is connected with the front end of the conical body, and the diameter of the adjusting section is not smaller than the maximum diameter of the front end of the conical body.
So set up for the adjustable ring one can smoothly axial displacement and contact main shaft front end face, avoids appearing axial displacement's step obstacle.
According to the adjustable over-positioning knife handle, the diameter of the adjusting section is smaller than or equal to the small diameter of the external thread.
The second adjusting ring can smoothly rotate, further axially move and contact the first adjusting ring, and step obstacles of axial movement are avoided.
According to the adjustable over-positioning tool shank, the rear end of the first adjusting ring is provided with the annular boss, the outer diameter of the annular boss is the same as that of the front end of the main shaft, and the annular boss is used for tightly propping against the front end face of the main shaft.
So set up, to the actual external diameter of main shaft front end, set up rather than external diameter assorted annular boss at an adjustable ring rear end, the terminal surface of annular boss can just in time with the preceding terminal surface laminating contact of main shaft and top tightly, and is more accurate reliable to the transmission of top thrusting force.
According to the adjustable over-positioning knife handle, the external thread area of the cylindrical body is in threaded connection with the locking ring, the locking ring is located at the front end of the second adjusting ring, and the locking ring is used for locking the second adjusting ring.
So set up, the locking ring is rotatable and axial displacement, makes its locking adjustable ring two, prevents that the handle of a knife use, and the unexpected rotation of adjustable ring two leads to adjustable ring one to become flexible and influence the location effect.
According to the adjustable over-positioning knife handle, the spring gasket is sleeved in the external thread area of the cylindrical body and is positioned between the second adjusting ring and the locking ring.
So set up, the spring shim is located between adjustable ring two and the locking ring, gives adjustable ring two and the axial power of locking ring respectively, can further prevent the unexpected rotation of locking ring.
According to the adjustable over-positioning knife handle, the clamping notches are formed in the outer circumferences of the first adjusting ring, the second adjusting ring and the locking ring, and can be clamped by a wrench.
So set up, clamp the breach and make things convenient for spanner centre gripping operation.
The invention relates to an adjusting method of an adjustable over-positioning knife handle,
firstly, inserting the conical part of the tool holder into a conical hole of a machine tool main shaft, screwing a blind rivet into an axial threaded hole at the rear end of the conical part and tensioning the tool holder on the main shaft;
then, according to a gap between the rear end of the first adjusting ring and the front end face of the main shaft, the adjusting ring is rotated by a wrench to move axially to be in initial contact with the front end face of the main shaft, then the second adjusting ring is rotated by the wrench to be pushed to the first adjusting ring, and the first adjusting ring is driven to be pushed against the front end face of the main shaft;
and finally, sleeving a spring gasket, screwing in the locking ring, and tightly pressing the spring gasket between the second adjusting ring and the locking ring.
By the method, the first adjusting ring can be conveniently and quickly adjusted to be in contact with and tightly pushed against the front end face of the main shaft, and the method is stable, reliable and high in adjusting efficiency.
Compared with the prior art, the beneficial effects of adopting the technical scheme are as follows: the adjusting ring I can be conveniently and quickly adjusted to be in contact with and tightly pushed against the front end face of the main shaft, the adjusting efficiency is high, the adaptability to different machine tools and different clearance values is good, a large amount of grinding work is not required to be performed in a targeted mode, the labor intensity of workers is reduced, the mounting efficiency is improved, and the machining efficiency of a locomotive can be further improved.
Drawings
FIG. 1 is a schematic diagram of a gap existing between a front end face of a spindle and a flange end face of a tool holder in a conventional assembly process;
FIG. 2 is a schematic view of a conventional assembly in which no gap exists between the front end face of the spindle and the flange end face of the tool holder;
FIG. 3 is a cross-sectional view of the spindle of the present invention;
FIG. 4 is a schematic structural view of the present invention;
FIG. 5 is a schematic view of the present invention with the adjustment ring one, adjustment ring two, spring washer and locking ring removed;
FIG. 6 is a schematic view of the structure of the adjusting ring I in the present invention;
FIG. 7 is a cross-sectional view of a first adjusting ring of the present invention;
FIG. 8 is a schematic structural view of a second adjusting ring according to the present invention;
figure 9 is a schematic view of the locking ring of the present invention.
Reference numerals: the tool comprises a conical body part 1, a cylindrical body part 2, a main shaft 3, a conical hole 4, an adjusting section 5, an adjusting ring I6, a main shaft front end face 7, an external thread 8, an adjusting ring II 9, an adjusting step 10, an internal conical face 11, an external conical face 12, an annular boss 13, a locking ring 14, a spring gasket 15, a clamping notch 16, a positioning key groove 17, a notch 18, a plane 19, a tool shank 20 and a tool shank flange end face 21.
Detailed Description
The invention is further described below with reference to the accompanying drawings.
Description of the drawings: the direction in this application is defined, and the fore-and-aft direction is the handle of a knife axial promptly, and is "preceding" towards cylinder portion direction, and is "back" towards cone portion direction.
Example 1
As shown in fig. 3 to 8, an adjustable over-positioning knife handle comprises a conical body portion 1 and a cylindrical body portion 2, the conical body portion 1 gradually increases in outer diameter from back to front, the conical body portion 1 is used for being fixedly installed in a conical hole 4 in the front end of a machine tool spindle 3, an axial threaded hole (not shown in the figure) is formed in the rear end of the conical body portion 1 and is used for being in threaded connection with a pull nail (not shown in the figure), a pull claw (not shown in the figure) is arranged in the spindle 3 and grabs the pull nail, the pull claw and the pull nail are of existing structures in the field, the knife handle is tightly fixed in the conical hole 4 in the front end of the spindle 3, two positioning key grooves 17 are formed in the knife handle, one ends of two positioning keys (not shown in the figure) on the spindle 3 are respectively and correspondingly installed in the positioning key grooves 17, the front end of the cylindrical body portion 2 is used for installing a machining tool (, the adjusting section 5 is connected with the front end of the conical body portion 1, an adjusting ring I6 is sleeved on the adjusting section 5, the inner diameter of the adjusting ring I6 is the same as the diameter of the adjusting section 5, a notch 18 for a positioning key to penetrate through is correspondingly formed in the adjusting ring I6, the adjusting ring I6 can be adjusted in an axial moving mode on the adjusting section 5, the adjusting ring I6 is used for pushing the front end face 7 of the main shaft tightly backwards, an external thread 8 is arranged on the cylindrical body portion 2 and is used for being connected with an adjusting ring II 9 in a threaded mode, the size of the external thread 8 is specifically set to be M80x3, the adjusting ring II 9 can be adjusted in an axial moving mode on the cylindrical body portion 2, the adjusting ring II 9 is used for pushing the adjusting ring I6 tightly backwards, the adjusting ring I6 is located at the rear end of the adjusting ring II 9, the rear end face of the adjusting ring I6 is.
Further, the rear end of cylindrical part 2 has regulation step 10, it is located the front end of adjusting section 5 to adjust step 10, external screw thread 8 sets up in the excircle surface of adjusting step 10, adjust ring two 9 and adjust step 10 threaded connection, it meets with the regulation section 5 front end to adjust step 10 rear end, the diameter of adjusting step 10 is greater than the diameter of cylindrical part 2, location keyway 17 is located adjusts step 10, it has two planes 19 corresponding with two location keyways 17 respectively to adjust on the section 5, two planes 19 supply the navigation key to pass through.
Example 2
As shown in fig. 6 to 8, on the basis of embodiment 1, the front end of the adjusting ring one 6 has an inner conical surface 11, the rear end of the adjusting ring two 9 has an outer conical surface 12, the outer conical surface 12 is used for fitting and abutting against the inner conical surface 11 and is adapted to the inner conical surface, the outer conical surface 12 is annular, the inner conical surface 11 comprises two arc-shaped sections, and the two arc-shaped sections are formed by dividing two notches 18 on the adjusting ring one 6.
Example 3
On the basis of embodiment 2, the adjusting section 5 is connected with the front end of the conical body part 1, the diameter of the adjusting section 5 is not smaller than the maximum diameter of the front end of the conical body part 1, the diameter of the adjusting section 5 is smaller than or equal to the small diameter of the external thread 8, and the diameter of an imaginary cylinder tangent to the root of the external thread 8 is called as the small diameter.
Example 4
As shown in fig. 4, 6 and 7, on the basis of embodiment 3, the rear end of the adjusting ring one 6 is provided with an annular boss 13, the outer diameter of the annular boss 13 is the same as the outer diameter of the front end of the main shaft 3, the inner diameter of the annular boss 13 is the same as the inner diameter of the adjusting ring one 6, the annular boss 13 is used for tightly propping against the front end surface 7 of the main shaft, and specifically, the two notches 18 penetrate through the annular boss 13 to divide the annular boss 13 into two arc-shaped parts.
Example 5
As shown in fig. 4, 6, 8 and 9, in embodiment 4, a locking ring 14 is screwed to an area of the external thread 8 of the cylindrical body 2, the locking ring 14 is located at the front end of the second adjusting ring 9, the locking ring 14 is used for locking the second adjusting ring 9, a spring washer 15 is sleeved on the area of the external thread 8 of the cylindrical body 2, the spring washer 15 is located between the second adjusting ring 9 and the locking ring 14, the external diameters of the first adjusting ring 6, the second adjusting ring 9, the spring washer 15 and the locking ring 14 are the same, clamping notches 16 are formed in the outer circumferences of the first adjusting ring 6, the second adjusting ring 9 and the locking ring 14, and the clamping notches 16 can be clamped by a wrench.
An adjusting method of an adjustable over-positioning knife handle comprises the following steps:
firstly, inserting the conical part 1 of the tool holder into the conical hole 4 of the machine tool spindle 3, screwing a blind rivet (not shown in the figure) into an axial threaded hole at the rear end of the conical part 1 and tensioning the tool holder on the spindle 3;
then, according to the gap between the rear end of the adjusting ring I6 and the front end face 7 of the main shaft, a wrench is adopted to rotate the adjusting ring I6 and enable the adjusting ring I to axially move to be in initial contact with the front end face 7 of the main shaft, then a wrench is adopted to rotate the adjusting ring II 9 to enable the adjusting ring I6 to be pushed towards the top, and the adjusting ring I6 is driven to tightly push the front end face 7 of the main shaft;
finally, the spring washer 15 is sleeved, the locking ring 14 is screwed in, and the spring washer 15 is tightly pressed between the adjusting ring II 9 and the locking ring 14.
The invention is not limited to the foregoing embodiments. The invention extends to any novel feature or any novel combination of features disclosed in this specification and any novel method or process steps or any novel combination of features disclosed. Those skilled in the art to which the invention pertains will appreciate that insubstantial changes or modifications can be made without departing from the spirit of the invention as defined by the appended claims.

Claims (9)

1. The utility model provides an cross location handle of a knife with adjustable, the handle of a knife includes cone portion (1) and cylinder portion (2), cone portion (1) are used for fixed mounting in circular cone hole (4) of lathe main shaft (3) front end, its characterized in that: the rear end of the cylindrical body part (2) is provided with an adjusting section (5), the adjusting section (5) is sleeved with a first adjusting ring (6), the first adjusting ring (6) can be axially moved and adjusted on the adjusting section (5), the first adjusting ring (6) is used for jacking the front end face (7) of the main shaft backwards, the cylindrical body part (2) is provided with an external thread (8) and is used for being connected with a second adjusting ring (9) in a threaded manner, the second adjusting ring (9) can be axially moved and adjusted on the cylindrical body part (2), and the second adjusting ring (9) is used for jacking the first adjusting ring (6) backwards; the adjusting section (5) is connected with the front end of the conical body part (1), and the diameter of the adjusting section (5) is not smaller than the maximum diameter of the front end of the conical body part (1).
2. The adjustable over-positioning knife handle according to claim 1, characterized in that: the rear end of cylinder portion (2) has regulation step (10), it is located to adjust step (10) the front end of regulation section (5), external screw thread (8) set up in adjust the excircle surface of step (10), adjust ring two (9) with adjust step (10) threaded connection.
3. The adjustable over-positioning knife handle according to claim 1, characterized in that: the front end of adjusting ring (6) has interior conical surface (11), the rear end of adjusting ring two (9) has external conical surface (12), external conical surface (12) are used for laminating and push up tight interior conical surface (11), and looks adaptation.
4. The adjustable over-positioning knife handle according to claim 1, characterized in that: the diameter of the adjusting section (5) is smaller than or equal to the small diameter of the external thread (8).
5. The adjustable over-positioning knife handle according to claim 1, characterized in that: the rear end of the adjusting ring I (6) is provided with an annular boss (13), the outer diameter of the annular boss (13) is the same as that of the front end of the main shaft (3), and the annular boss (13) is used for tightly jacking the front end face (7) of the main shaft.
6. The adjustable over-positioning knife handle according to any one of claims 1 to 5, characterized in that: the outer thread (8) area of the cylindrical part (2) is in threaded connection with a locking ring (14), the locking ring (14) is located at the front end of the second adjusting ring (9), and the locking ring (14) is used for locking the second adjusting ring (9).
7. The adjustable over-positioning knife handle according to claim 6, characterized in that: the spring washer (15) is sleeved in the external thread (8) area of the cylindrical part (2), and the spring washer (15) is located between the adjusting ring II (9) and the locking ring (14).
8. The adjustable over-positioning knife handle according to claim 6, characterized in that: clamping notches (16) are formed in the outer circumferences of the adjusting ring I (6), the adjusting ring II (9) and the locking ring (14), and the clamping notches (16) can be clamped by a wrench.
9. The adjusting method of the adjustable over-positioning tool shank according to claim 7, characterized in that:
firstly, inserting a conical part (1) of a tool shank into a conical hole (4) of a machine tool spindle (3), screwing a blind rivet into an axial threaded hole at the rear end of the conical part (1) and tensioning the tool shank on the spindle (3);
then, according to a gap between the rear end of the adjusting ring I (6) and the front end face (7) of the main shaft, a wrench is adopted to rotate the adjusting ring I (6) and enable the adjusting ring I to axially move to be in initial contact with the front end face (7) of the main shaft, then a wrench is adopted to rotate the adjusting ring II (9) to enable the adjusting ring I (6) to be pushed to the top, and the adjusting ring I (6) is driven to be tightly pushed against the front end face (7) of the main shaft;
and finally, sleeving a spring gasket (15), screwing in the locking ring (14), and pressing the spring gasket (15) between the second adjusting ring (9) and the locking ring (14).
CN201810925775.8A 2018-08-15 2018-08-15 Adjustable over-positioning knife handle and adjusting method thereof Active CN109014263B (en)

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Publication number Priority date Publication date Assignee Title
IT201900011766A1 (en) * 2019-07-15 2021-01-15 Algra S P A DEVICE FOR THE CONTROLLED STABILIZATION OF TOOL HOLDER SHANKS
CN111958525B (en) * 2020-06-30 2022-04-22 北京航天控制仪器研究所 Hierarchical formula fine setting frock clamp of case axle subassembly
CN113369988B (en) * 2021-06-25 2022-03-15 成都飞机工业（集团）有限责任公司 Automatic alignment device and method for machine tool angle head

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JP2003136354A (en) * 2001-11-01 2003-05-14 Big Alpha Co Ltd Tool holder
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CN104827324B (en) * 2015-05-18 2018-01-30 东方电气集团东方汽轮机有限公司 Cross the compound method of position tool shanks adjust pad
CN105127463B (en) * 2015-08-27 2017-10-31 宁波川景誉机械科技发展有限公司 Knife handle structure for cutter holding
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Effective date of registration: 20220628

Address after: 430200 No.8 Sunshine Avenue, Jiangxia District, Wuhan City, Hubei Province

Patentee after: DONGFANG ELECTRIC (WUHAN) NUCLEAR EQUIPMENT Co.,Ltd.

Address before: 618000 Jinsha Jiangxi Road, high tech Industrial Park, Deyang, Sichuan, 666

Patentee before: DONGFANG TURBINE Co.,Ltd. DTC