CN108714836A - A kind of flexible positioning structure of the outer surface raceway groove grinding of thin and long shafts workpiece - Google Patents

A kind of flexible positioning structure of the outer surface raceway groove grinding of thin and long shafts workpiece Download PDF

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Publication number
CN108714836A
CN108714836A CN201810455215.0A CN201810455215A CN108714836A CN 108714836 A CN108714836 A CN 108714836A CN 201810455215 A CN201810455215 A CN 201810455215A CN 108714836 A CN108714836 A CN 108714836A
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China
Prior art keywords
workpiece
mentioned
support
thin
raceway groove
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CN201810455215.0A
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CN108714836B (en
Inventor
竺敏超
郑扬
唐波
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Ningbo Mingrun Machinery Manufacturing Co Ltd
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Ningbo Mingrun Machinery Manufacturing Co Ltd
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B24GRINDING; POLISHING
    • B24BMACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B19/00Single-purpose machines or devices for particular grinding operations not covered by any other main group
    • B24B19/02Single-purpose machines or devices for particular grinding operations not covered by any other main group for grinding grooves, e.g. on shafts, in casings, in tubes, homokinetic joint elements
    • B24B19/06Single-purpose machines or devices for particular grinding operations not covered by any other main group for grinding grooves, e.g. on shafts, in casings, in tubes, homokinetic joint elements for grinding races, e.g. roller races
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B24GRINDING; POLISHING
    • B24BMACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B41/00Component parts such as frames, beds, carriages, headstocks
    • B24B41/06Work supports, e.g. adjustable steadies

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Grinding Of Cylindrical And Plane Surfaces (AREA)
  • Grinding And Polishing Of Tertiary Curved Surfaces And Surfaces With Complex Shapes (AREA)

Abstract

The invention discloses a kind of flexible positioning structures of the outer surface raceway groove grinding of thin and long shafts workpiece, including:One flexible connecting device, a support device and a pressing device;Wherein workpiece is locked in the bearing inner race of the unidirectional needle bearing of flexible connecting device, in workpiece in the radial direction by support device, and is compressed by pressing device.The present invention solves the technical issues of flexible positioning structure of a kind of outer surface raceway groove grinding suitable for thin and long shafts workpiece " provide ", has a series of simple in structure, notable advantages such as stability in use is good, and equipment Productive statistics are low.

Description

A kind of flexible positioning structure of the outer surface raceway groove grinding of thin and long shafts workpiece
Technical field
The present invention relates to the flexible positioning structure used in a kind of grinding machine process of manufacture, especially a kind of thin and long shafts The flexible positioning structure of the outer surface raceway groove grinding of workpiece.
Background technology
The outer surface raceway groove grinding of thin and long shafts workpiece is beated big when being rotated because of thin and long shafts workpiece, it is difficult to it adjusts, Therefore flexible positioning device is needed, benchmark is set with workpiece outer diameter.
But existing the flexible positioning device that disclosure satisfy that above-mentioned grinding requirement is found no in the art.
Invention content
It is provided the purpose of the present invention is to solve above-mentioned the deficiencies in the prior art a kind of suitable for thin and long shafts workpiece Outer surface raceway groove grinding flexible positioning structure.
To achieve the goals above, a kind of outer surface raceway groove grinding of thin and long shafts workpiece designed by the present invention is soft Property location structure comprising:
One flexible connecting device, the flexible connecting device include:
One end face support base, which is mounted on main shaft, and the rotation synchronous with main shaft;On the end face support base A support end face is formed, the support end face and main-shaft axis are perpendicular;
One end of one flexible connecting sleeve, the flexible connecting sleeve is fixed on above-mentioned end face support base, and is annularly distributed in support end face Outer ring;The flexible connecting sleeve is overlapped with the axis of both main shafts;
One bearing block, the bearing block are mounted on the other end of above-mentioned flexible connecting sleeve, which sets there are one step through-hole, And the centerline hole of the step through-hole is overlapped with main-shaft axis;
And a unidirectional needle bearing, the unidirectional needle bearing are mounted in above-mentioned step through-hole;The unidirectional needle bearing The centerline hole of bearing inner race coincides with main-shaft axis, and piece-holder position is formed in bearing inner race;
One support device, the support device include:
One support base, which is located at the side of above-mentioned piece-holder position, and installs to bed body;It is formed on the support base One support mounting surface;
And it is at least one and supporting the supporting block of workpiece;The supporting block is detachable to be fixed to above-mentioned support installation Face;
One pressing device, the pressing device include:
One cylinder, the cylinder are installed to bed body;
And a lever, the lever are hinged in bed body, one end thereof falls the cylinder rod running orbit in above-mentioned cylinder On, and when cylinder rod jacks the corresponding end, another end of lever compresses the workpiece on above-mentioned piece-holder position.
Above-mentioned unidirectional needle bearing also known as needle roller clutch, are made of drawn cup and plastic cage;Retainer can be with Included plastics reed can also go up stainless steel reed guiding needle roller, and the inclined-plane raceway and needle roller on outer ring are as locking device Existing product.
The grinding machine for combining above-mentioned flexible positioning structure carries out grinding in the outer surface raceway groove to thin and long shafts workpiece When, the tooling operating procedure of workpiece is as follows:
Workpiece is installed:
First, workpiece is installed to the piece-holder position of unidirectional needle bearing, and the supporting block of support device is bonded with workpiece surface, And in the radially support of the workpiece workpiece;
Secondly, the cylinder operation of pressing device drives the corresponding end of lever to compress the workpiece on support base;So far, workpiece is just Limit is completed in its radial direction;
Then, grinding machine spindle drives the end face support base of flexible connecting device synchronous with the main shaft and equidirectional rotation(Such as It is set as clockwise), end face support base drives the equidirectional rotation of bearing block by flexible connecting sleeve again, so that bearing Unidirectional needle bearing in seat is in one direction(I.e. clockwise)Locking clamping of workpieces, flexible connecting sleeve can be in its rotation side at this time Distortion is generated upwards, and to apply the tractive force that the workpiece is pulled to end face support base to workpiece, workpiece is just towards end face Support base moves, until on workpiece end face apical grafting to the support end face of end face support base, so far workpiece just axially completes Limit;
Finally, by playing table with dial gauge or amesdial, to measure the circle bounce of rotational workpieces;If measured value meets, work Part carries out next step grinding;If measured value is not met, by adjusting support base to the radial support height of workpiece, then It once repeats the above steps, until circle pulsation measurement numerical value meets processing request;
Workpiece is dismantled:
After the completion of the outer surface raceway groove grinding for waiting for workpiece, it is only necessary to which grinding machine spindle negative direction rotates(I.e. counterclockwise)Directly It completes to unlock to unidirectional needle bearing, workpiece just can be disassembled smoothly from unidirectional needle bearing.
Further, the flexible positioning knot of the outer surface raceway groove grinding of a kind of thin and long shafts workpiece provided by the present invention Structure further includes:
The adjustment block of above-mentioned supporting block is corresponded to one by one, and every group of corresponding supporting block is fixed to support with adjustment block by screw On the support mounting surface of seat.
Preferably, single above-mentioned supporting block corresponds to multiple adjustment blocks, and the thickness of multiple adjustment blocks differs.
The above-mentioned height for being further improved supporting block described in technical solution is adjusted, by the adjustment block for replacing different-thickness It can easily realize, and every group of corresponding adjustment block is fixed by screws in the support mounting surface of support base with supporting block On, structural stability and bonding strength are good.
In order to facilitate the discharge arm on grinding machine spindle(Generally use round steel wire)It can be easily by end face support base, so Blanking operation is completed to the workpiece on unidirectional needle bearing afterwards, sets that there are one for discharge arm on heretofore described end face support base The through-hole for running through, and connecting with the bearing inner race of above-mentioned unidirectional needle bearing.
Cut is generated to workpiece surface in order to avoid the lever of above-mentioned pressing device, is fixed on an end of above-mentioned lever There is nylon briquetting, which is pressed on the workpiece on piece-holder position, because workpiece is metal material(Typically iron), consider Different to material hardness, the nylon briquetting on lever is directly born against on workpiece, and machinery damage will not be generated to the workpiece surface of rotation Wound, while because of the antiwear characteristic of nylon briquetting nylon material itself, the mechanical wear amount that its own is generated is also relatively small, uses Service life is relatively long.
A kind of flexible positioning structure of the outer surface raceway groove grinding for thin and long shafts workpiece that the present invention obtains, and it is existing Technology compares, and has following advantages:
1, the present invention provides a kind of flexible positioning structures for the outer surface raceway groove grinding being highly suitable for thin and long shafts workpiece;
2, the flexible positioning structure of the outer surface raceway groove grinding of a kind of thin and long shafts workpiece provided by the present invention, has knot A series of notable advantages such as structure is simple, and stability in use is good, and equipment Productive statistics are low.
Description of the drawings
Fig. 1 is that embodiment 1 provides a kind of flexible positioning structure of the outer surface raceway groove grinding of thin and long shafts workpiece Sectional view;
Fig. 2 is the close-up schematic view at A in Fig. 1;
Fig. 3 is that embodiment 1 provides a kind of side view of the flexible positioning structure of the outer surface raceway groove grinding of thin and long shafts workpiece Figure;
Fig. 4 is the close-up schematic view at B in Fig. 3;
Fig. 5 is that embodiment 1 provides a kind of side view of the flexible positioning structure of the outer surface raceway groove grinding of thin and long shafts workpiece Figure(Band broken section structure);
Fig. 6 is the close-up schematic view at C in Fig. 5;
Fig. 7 is that embodiment 2 provides a kind of part of the flexible positioning structure of the outer surface raceway groove grinding of thin and long shafts workpiece Schematic diagram;
Fig. 8 is that embodiment 3 provides a kind of part of the flexible positioning structure of the outer surface raceway groove grinding of thin and long shafts workpiece Schematic diagram.
In figure:End face support base 1, support end face 1-1, through-hole 1-2, main shaft 2, flexible connecting sleeve 3, bearing block 4, step are logical Hole 4-1, unidirectional needle bearing 5, workpiece 6, support base 7, support mounting surface 7-1, bed body 8, supporting block 9, cylinder 10, cylinder rod 10-1, air cylinder support 11, lever 12, adjustment block 13, nylon briquetting 14, shaft 15.
Specific implementation mode
Present invention will be further explained below with reference to the attached drawings and examples.
Embodiment 1:
As shown in figures 1 to 6, the flexible positioning knot of the outer surface raceway groove grinding of a kind of thin and long shafts workpiece provided in this embodiment Structure comprising:
One flexible connecting device, the flexible connecting device include:
One end face support base 1, the end face support base 1 are mounted on by screw on the end face of main shaft 2, the rotation that the two synchronizes; Support an end face 1-1, the support end face 1-1 and 2 axis perpendicular of main shaft are formed on the end face support base 1;One flexibility is even One end of female connector 3, the flexible connecting sleeve 3 is fixed on above-mentioned end face support base 1, and is annularly distributed in the outer ring of support end face 1-1;It should Flexible connecting sleeve 3 is overlapped with the axis of both main shafts 2;One bearing block 4, the bearing block 4 are mounted on above-mentioned flexible connecting sleeve 3 The other end, which sets there are one step through-hole 4-1, and the centerline hole of step through-hole 4-1 is overlapped with 2 axis of main shaft; And a unidirectional needle bearing 5, the unidirectional needle bearing 5 are mounted in above-mentioned step through-hole 4-1;The unidirectional needle bearing 5 The centerline hole of bearing inner race coincide with 2 axis of main shaft, and form workpiece 6 in bearing inner race and position be clamped;
One support device, the support device include:
One support base 7, which is located at the side that position is clamped in above-mentioned workpiece 6, and installs to bed body 8;The support base 7 It is upper to form a support mounting surface 7-1;And a pair, to support the supporting block 9 of workpiece 6, which is pacified by screw It is filled on above-mentioned support mounting surface 7-1;
One pressing device, the pressing device include:
One cylinder 10, the cylinder 10 are installed by air cylinder support 11 to bed body 8;And a lever 12, the lever 12 are logical It crosses shaft 15 to be hinged in bed body 8, one end thereof is fallen on the cylinder rod 10-1 running orbits of above-mentioned cylinder 10, and in cylinder When bar 10-1 jacks the corresponding end, another end of lever 12 compresses the workpiece 6 that above-mentioned workpiece 6 is clamped on position;
It can be easily by end face support base 1, then to unidirectional needle bearing 5 in order to facilitate the discharge arm on grinding machine spindle 2 On workpiece 6 complete blanking operation, as shown in Fig. 2, being set on end face support base described in the present embodiment 1 there are one being passed through for discharge arm The through-hole 1-2 for wearing, and connecting with the bearing inner race of above-mentioned unidirectional needle bearing 5.
The grinding machine for combining above-mentioned flexible positioning structure carries out grinding in the outer surface raceway groove to thin and long shafts workpiece When, the tooling operating procedure of workpiece 6 is as follows:
Workpiece 6 is installed:
First, the workpiece 6 of the installation of workpiece 6 to unidirectional needle bearing 5 is clamped on position, supporting block 9 and 6 surface of workpiece of support device Fitting, and in the radially support of workpiece 6 workpiece 6;
Secondly, the cylinder 10 of pressing device works, and the corresponding end of lever 12 is driven to compress the workpiece 6 on support base 7;So far, Workpiece 6 just completes limit in its radial direction;
Then, grinding machine spindle 2 drives the end face support base 1 of flexible connecting device synchronous with the main shaft 2 and equidirectional rotation(Example Such as it is set as clockwise), end face support base 1 again by flexible connecting sleeve 3 drive 4 equidirectional rotation of bearing block so that The unidirectional needle bearing 5 in bearing block 4 is obtained in one direction(I.e. clockwise)Locking clamping of workpieces 6, at this time 3 meeting of flexible connecting sleeve Distortion is generated in its rotation direction, to apply the tractive force that the workpiece 6 is pulled to end face support base 1, work to workpiece 6 Part 6 is just moved towards end face support base 1, until on 6 end face apical grafting of workpiece to the support end face 1-1 of end face support base 1, so far work Part 6 just axially completes limit;
Finally, by playing table with dial gauge or amesdial, to measure the circle bounce of rotational workpieces 6;If measured value meets, work Part 6 carries out next step grinding;It is high to the radial support of workpiece 6 by adjusting support base 7 if measured value is not met Degree, repeats the above steps again, until circle pulsation measurement numerical value meets processing request;
Workpiece 6 is dismantled:
After the completion of the outer surface raceway groove grinding for waiting for workpiece 6, it is only necessary to which 2 negative direction of grinding machine spindle rotates(I.e. counterclockwise) Until unidirectional needle bearing 5 completes unlock, workpiece 6 just can be disassembled smoothly from unidirectional needle bearing 5.
Embodiment 2:
A kind of flexible positioning structure of the outer surface raceway groove grinding of thin and long shafts workpiece provided in the present embodiment, substantially Structure is consistent with embodiment 1, as shown in fig. 7, still the present embodiment provides a kind of flexible positioning structure, further includes:By One corresponds to the adjustment block 13 of above-mentioned supporting block 9, and every group of corresponding supporting block 9 is fixed to support with adjustment block 13 by screw On the support mounting surface 7-1 of seat 7.In addition, single above-mentioned supporting block 9 corresponds to multiple adjustment blocks 13, and the thickness of multiple adjustment blocks 13 Degree differs, and realizes that the height of supporting block 9 is adjusted by replacing adjustment block 13, and every group of corresponding adjustment block 13 and supporting block 9 are fixed by screws on the support mounting surface 7-1 of support base 7, and structural stability and bonding strength are good.
Embodiment 3:
A kind of flexible positioning structure of the outer surface raceway groove grinding of thin and long shafts workpiece provided in the present embodiment, substantially Structure is consistent with embodiment 2, but in order to avoid the lever of above-mentioned pressing device 12 generates cut, such as Fig. 8 to 6 surface of workpiece It is shown, it is fixed with nylon briquetting 14 on an end of lever 12 described in the present embodiment, which is pressed on workpiece 6 The workpiece 6 on position is clamped, because workpiece 6 is metal material, it is contemplated that material hardness is different, and the nylon briquetting 14 on lever 12 is direct It is pressed on workpiece 6, mechanical damage will not be generated to 6 surface of workpiece of rotation, while because of nylon briquetting 14 nylon material itself Antiwear characteristic, the mechanical wear amount that its own is generated is also relatively small, and service life is relatively long.

Claims (6)

1. the flexible positioning structure of the outer surface raceway groove grinding of a kind of thin and long shafts workpiece, it is characterized in that including:
One flexible connecting device, the flexible connecting device include:
One end face support base, which is mounted on main shaft, and the rotation synchronous with main shaft;On the end face support base A support end face is formed, the support end face and main-shaft axis are perpendicular;
One end of one flexible connecting sleeve, the flexible connecting sleeve is fixed on above-mentioned end face support base, and is annularly distributed in support end face Outer ring;The flexible connecting sleeve is overlapped with the axis of both main shafts;
One bearing block, the bearing block are mounted on the other end of above-mentioned flexible connecting sleeve, which sets there are one step through-hole, And the centerline hole of the step through-hole is overlapped with main-shaft axis;
And a unidirectional needle bearing, the unidirectional needle bearing are mounted in above-mentioned step through-hole;The unidirectional needle bearing The centerline hole of bearing inner race coincides with main-shaft axis, and piece-holder position is formed in bearing inner race;
One support device, the support device include:
One support base, which is located at the side of above-mentioned piece-holder position, and installs to bed body;It is formed on the support base One support mounting surface;
And it is at least one and supporting the supporting block of workpiece;The supporting block is detachable to be fixed to above-mentioned support installation Face;
One pressing device, the pressing device include:
One cylinder, the cylinder are installed to bed body;
And a lever, the lever are hinged in bed body, one end thereof falls the cylinder rod running orbit in above-mentioned cylinder On, and when cylinder rod jacks the corresponding end, another end of lever compresses the workpiece on above-mentioned piece-holder position.
2. a kind of flexible positioning structure of the outer surface raceway groove grinding of thin and long shafts workpiece according to claim 1, Be characterized in further include:
The adjustment block of above-mentioned supporting block is corresponded to one by one, and every group of corresponding supporting block is fixed to support with adjustment block by screw On the support mounting surface of seat.
3. a kind of flexible positioning structure of the outer surface raceway groove grinding of thin and long shafts workpiece according to claim 2, It is characterized in that single above-mentioned supporting block corresponds to multiple adjustment blocks, and the thickness of multiple adjustment blocks differs.
4. the flexibility according to a kind of outer surface raceway groove grinding of thin and long shafts workpiece of claim 1-3 any one of them positions Structure, it is characterized in that set on above-mentioned end face support base there are one running through for discharge arm, and with the bearing of above-mentioned unidirectional needle bearing The through-hole that inner ring connects.
5. the flexibility according to a kind of outer surface raceway groove grinding of thin and long shafts workpiece of claim 1-3 any one of them positions Structure, it is characterized in that being fixed with nylon briquetting on an end of above-mentioned lever, which is pressed on piece-holder position Workpiece.
6. a kind of flexible positioning structure of the outer surface raceway groove grinding of thin and long shafts workpiece according to claim 5, It is characterized in being fixed with nylon briquetting on an end of above-mentioned lever, which is pressed on the workpiece on piece-holder position.
CN201810455215.0A 2018-05-14 2018-05-14 Flexible positioning structure for grinding outer surface channels of slender shaft workpieces Active CN108714836B (en)

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Application Number Priority Date Filing Date Title
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CN108714836B CN108714836B (en) 2024-03-19

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114932487A (en) * 2022-07-25 2022-08-23 苏州铁近机电科技股份有限公司 Bearing inner race groove grinder

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA1178460A (en) * 1982-12-03 1984-11-27 Arthur W. Wright Rotary holding tool
CN101417409A (en) * 2007-10-23 2009-04-29 王德军 Grinding machine charging and discharging mechanism
CN103537969A (en) * 2013-10-22 2014-01-29 浙江省新昌新轴实业有限公司 Water pump shaft grinding device and process
CN203765458U (en) * 2014-01-21 2014-08-13 濮阳贝英数控机械设备有限公司 Long rod shaft double channel grinding supporting device of thread spinner and water pump bearings
CN205009051U (en) * 2015-09-29 2016-02-03 洛阳轴研科技股份有限公司 Use driver plate device in grinding of rigid shaft class part hole
CN105619114A (en) * 2016-02-22 2016-06-01 扬州工业职业技术学院 Curved-face self-centering clamp
CN207326511U (en) * 2017-07-28 2018-05-08 浙江精友汽配有限公司 A kind of optical axis clamp system
CN208811777U (en) * 2018-05-14 2019-05-03 宁波明润机械制造有限公司 A kind of flexible positioning structure of the outer surface channel grinding of thin and long shafts workpiece

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA1178460A (en) * 1982-12-03 1984-11-27 Arthur W. Wright Rotary holding tool
CN101417409A (en) * 2007-10-23 2009-04-29 王德军 Grinding machine charging and discharging mechanism
CN103537969A (en) * 2013-10-22 2014-01-29 浙江省新昌新轴实业有限公司 Water pump shaft grinding device and process
CN203765458U (en) * 2014-01-21 2014-08-13 濮阳贝英数控机械设备有限公司 Long rod shaft double channel grinding supporting device of thread spinner and water pump bearings
CN205009051U (en) * 2015-09-29 2016-02-03 洛阳轴研科技股份有限公司 Use driver plate device in grinding of rigid shaft class part hole
CN105619114A (en) * 2016-02-22 2016-06-01 扬州工业职业技术学院 Curved-face self-centering clamp
CN207326511U (en) * 2017-07-28 2018-05-08 浙江精友汽配有限公司 A kind of optical axis clamp system
CN208811777U (en) * 2018-05-14 2019-05-03 宁波明润机械制造有限公司 A kind of flexible positioning structure of the outer surface channel grinding of thin and long shafts workpiece

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114932487A (en) * 2022-07-25 2022-08-23 苏州铁近机电科技股份有限公司 Bearing inner race groove grinder

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