CN102085626A - Continuous lifting adjustable mechanism for center frame of centerless grinder - Google Patents
Continuous lifting adjustable mechanism for center frame of centerless grinder Download PDFInfo
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- CN102085626A CN102085626A CN2009101998777A CN200910199877A CN102085626A CN 102085626 A CN102085626 A CN 102085626A CN 2009101998777 A CN2009101998777 A CN 2009101998777A CN 200910199877 A CN200910199877 A CN 200910199877A CN 102085626 A CN102085626 A CN 102085626A
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- central platform
- lifting
- adjustable mechanism
- centerless grinder
- centre frame
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Abstract
The invention provides a continuous lifting adjustable mechanism for a center frame of a centerless grinder, which at least comprises a central platform, a central frame base bearing the central platform, a left rotary rod, a right rotary rod and two support levers, wherein a cam bearing type straight line rolling guide rail and a locking piece are arranged between the central platform and the central frame base; the left rotary rod and the right rotary rod respectively span over left and right sides of the central platform in a horizontal direction; the two support levers are arranged between the central platform and the central frame base; when the central platform is lifted and adjusted, the left rotary rod or the right rotary rod is operated, a relative included angle between the two support levers is changed by rotating the left rotary rod and the right rotary rod, and the central platform is driven to be lifted and adjusted on the central frame base by the cam bearing type straight line rolling guide rail to overcome the structural defect in the prior art, so the continuous lifting adjustable mechanism has a simple structure, is convenient to operate, and realizes the excellent functions of the centerless grinder with high accuracy and efficiency.
Description
Technical field
The present invention relates to a kind of regulation technology, particularly relate to a kind of continuous adjustable mechanism of centre frame lifting that is applied to centerless grinder.
Background technology
Centerless grinding is as a kind of large-duty precision machining method, and more and more kinds for example parts such as bearing, automobile, war industry's industry all adopt centerless grinding as far as possible.Described centerless grinding is at centerless grinder or has on the inside and outside round grinding machine of centerless fixture (for example electric magnetic no-core clamp) and carry out; Usually, a kind of is grinding work piece outer round surface on cylindrical centreless-type grinder, is called Cylindrical Centerless Grinding, also claims cylindrical centerless type grinding; Another kind is to have the inside and outside surface of grinding work piece on the inside and outside round grinding machine of centerless fixture, be called supporting type centerless grinding.
We know that high adjustment is one of key technology based on workpiece centre in centerless grinding, and the workpiece centre high position of different-diameter, unlike material, different blank allowances is whittled into round precision for centreless grinding and plays the decisive influence effect.
The high adjustment structural approach of present domestic centerless grinder workpiece centre mainly is a shimming between workpiece guide plate and centre mount, adjusts the workpiece centre height by the bed hedgehopping sheet of changing different-thickness.See also Fig. 1, be shown as employing bed hedgehopping sheet of the prior art and adjust the high composition structural representation of workpiece centre, as shown in the figure, described structure comprises centre frame 11, place the centre mount 12 on the described centre frame 11, place the workpiece guide plate 13 on the described centre mount 12, and be positioned at described workpiece guide plate 13, workpiece 16 on emery wheel 14 and the guide wheel 15, be between described workpiece guide plate 13 and centre mount 12, to set up bed hedgehopping sheet 17 in this technology, and under the actual conditions, usually adopt two bed hedgehopping sheets 17 to place under the workpiece guide plate 13, unsettled (if total length cushioning in the middle of so then easily causing, this pad is made, keeping, install and all have any problem), under big grinding force effect, cause 13 distortion of workpiece guide plate, and then make its support stiffness not enough, directly influence grinding accuracy and production efficiency, when the powerful high-speed grinding of permanent power, its defective highlights.And, often, cause accent, thereby adopt the pad method less than best workpiece centre high position owing to bed hedgehopping sheet 17 thickness specifications can not be equipped with entirely, be difficult to adapt to diameter of work, material, the frequent situation of blank variation.
Present moreover external centerless grinder workpiece centre is high to be adjusted in the structure, at this is example with a German lathe temporarily, see also Fig. 2, be shown as the composition structural representation of another lifting continuous adjustable centre frame of the prior art, as shown in the figure, this composition structure comprises: central platform 21, be positioned at the nut 22 on described central platform 21 equalization points, carry the center stand 23 of described central platform 21, revolve the drive screw 24 of being located at described nut 22, co-axial shafts is connected to the bevel gear 25 on the described drive screw 24, the drive link 26 of the described bevel gear 25 of interlock and be positioned at the locking member 27 that stand 23 both sides, described center are used for fixing described central platform 21, this lifting continuous adjustable centre frame has continuous elevating function, but, because it is to drive bevel gear 25 by 26 rotations of turn drive link to drive drive screw 24, nut 22 and central platform 21 lifting moving, at last by locking member 27 lockings, but driving-chain is oversize in whole drive system, between lathe itself and centre frame, set up driving-chain, for design, processing, assembling all exists difficulty and risk, not only strengthen the design and the manufacturing cost of product, also more be not easy to Operation and maintenance.
So, how a kind of continuous adjustable mechanism of centre frame lifting of realizing centerless grinder is provided, be the present problem demanding prompt solution of dealer of association area in fact to avoid above-described shortcoming.
Summary of the invention
The shortcoming of prior art in view of the above, the object of the present invention is to provide the continuous adjustable mechanism of a kind of centerless grinder centre frame lifting, to solve fault of construction of the prior art,, and then realize excellent functions high-precision, efficient centerless grinder so that it is simple in structure, easy and simple to handle.
Reach other relevant purposes for achieving the above object, the invention provides the continuous adjustable mechanism of a kind of centerless grinder centre frame lifting, it is characterized in that, comprise at least: central platform, center stand, left and right swing arm and two support lever.Described central platform connects the workpiece guide plate that is used to carry workpiece to be ground; Described center stand carries described central platform, and is provided with displacement accuracy is constant when ensureing described central platform lift adjustment camshaft bearing formula linear rolling track between described central platform and the described center stand and in order to adjust the locking piece of the described central platform that locks when in place; Described left and right swing arm is striden the left and right sides of being located at described central platform respectively in horizontal direction, and described dextrorotation bar has the forward screw thread, and described left-handed bar has reverse thread; Described two support lever are symmetricly set between described central platform and the described center stand, the top of described two support lever is movably connected on a crossbeam respectively, described two crossbeams have the nut of anti-, the forward screw thread of corresponding described left and right swing arm respectively, and the bottom of described two support lever is movably connected on the stand of described center; Wherein, when the described central platform of lift adjustment, operate described left-handed bar or dextrorotation bar, change the relative angle of described two support lever by the rotation of described left-handed bar and dextrorotation bar, and then drive described central platform by described crossbeam and see through described camshaft bearing formula linear rolling track and on the stand of described center, carry out lift adjustment.
In the continuous adjustable mechanism of centerless grinder centre frame of the present invention lifting, described camshaft bearing formula linear rolling track is for the eccentric camshaft bearing formula linear rolling track that presets rigidity, as the guiding rail of described centre frame lifting; Described locking piece is dovetail guide and lock(ing) bolt; Described left-handed bar has left handle, and described dextrorotation bar has right handle, and described left and right swing arm is formed in one; The nut of described two crossbeams revolves respectively on anti-, the forward screw thread of being located at described left and right swing arm, and described two crossbeam opposing parallel are provided with, and the described relatively left and right swing arm of described two crossbeams vertically is provided with.
As mentioned above, the positive backpitch transmission simultaneously by the left and right swing arm of horizontal direction in the specific confined space of the continuous adjustable mechanism of centerless grinder centre frame of the present invention lifting is finished the continuous adjustable lifting position of central platform vertical direction with the support lever principle of combined action of symmetry, for ensureing the reliable and stable and practicability and effectiveness of this function technology of realization, be aided with camshaft bearing formula linear rolling track structure technology, dovetail locking mechanism technology and guard technology that off-centre presets rigidity, and the workpiece centre high measurement method of easy qualitative, quantitative.Advantages such as the present invention compared with prior art has simple in structure, and is advanced and applicable, reliable and stable, easy and simple to handle, and cost is lower, and the life-span is long.
Description of drawings
Fig. 1 is shown as employing bed hedgehopping sheet of the prior art and adjusts the high composition structural representation of workpiece centre.
Fig. 2 is shown as the composition structural representation of another lifting continuous adjustable centre frame of the prior art.
Fig. 3 is shown as the continuous adjustable mechanism simplified side view of centerless grinder centre frame of the present invention lifting.
Fig. 4 is shown as the continuous adjustable mechanism of centerless grinder centre frame of the present invention lifting and simplifies vertical view.
The specific embodiment
Below by specific instantiation explanation embodiments of the present invention, those skilled in the art can understand other advantages of the present invention and effect easily by the content that this specification disclosed.The present invention can also be implemented or be used by the other different specific embodiment, and the every details in this specification also can be based on different viewpoints and application, carries out various modifications or change under the spirit of the present invention not deviating from.
See also Fig. 3 and Fig. 4, Fig. 3 is shown as the continuous adjustable mechanism simplified side view of centerless grinder centre frame of the present invention lifting; Fig. 4 is shown as the continuous adjustable mechanism of centerless grinder centre frame of the present invention lifting and simplifies vertical view.Need to prove, the diagram that is provided in the present embodiment only illustrates basic conception of the present invention in a schematic way, satisfy only show in graphic with the present invention in relevant assembly but not component count, shape and size drafting when implementing according to reality, kenel, quantity and the ratio of each assembly can be a kind of random change during its actual enforcement, and its assembly layout kenel also may be more complicated.
As shown in the figure, the invention provides the continuous adjustable mechanism of a kind of centerless grinder centre frame lifting, it comprises at least: central platform 31, center stand 33, left-handed bar 37, dextrorotation bar 36 and two support lever 38.
Described central platform 31 connects the workpiece guide plate 32 that is used to carry workpiece to be ground (not shown), concrete, described workpiece guide plate 32 is close to center stand 33, be connected with described central platform 31, having support stiffness preferably, and then the defective that causes when having solved the powerful high-speed grinding of permanent power that the supporting rigidity deficiency causes.
The described central platform 31 of described center stand 33 carrying, and be provided with displacement accuracy is constant when ensureing described central platform 31 lift adjustments camshaft bearing formula linear rolling track 34 between described central platform 31 and the described center stand 33 and in order to adjust the locking piece 35 of the described central platform 31 that locks when in place; In present embodiment, described camshaft bearing formula linear rolling track 34 is the guiding rail of described centre frame lifting, displacement accuracy is constant when ensureing the central platform lift adjustment with the rigidity that presets rolling guide 34 by this bearing eccentric shaft, and then has guaranteed the stability of displacement accuracy.
In present embodiment, described locking piece 35 is dovetail guide and lock(ing) bolt, and the described central platform 31 that locks when in place in order to adjust is stable will adjust central platform in place 31 lockings by the dovetail guide mode.
Described left-handed bar 37 and dextrorotation bar 36 are striden the left and right sides of being located at described central platform 31 respectively in horizontal direction, and described dextrorotation bar 36 has forward screw thread 361, and described left-handed bar 37 has reverse thread 371; In present embodiment, described left-handed bar 37 has left handle 372, and described dextrorotation bar 36 has right handle 362, and described left-handed bar 37 and dextrorotation bar 36 are formed in one; When the described central platform of lift adjustment, the right handle 362 of turn dextrorotation bar 36 1 ends, two nuts relatively move during dextrorotation, and 38 angle theta of two symmetric support levers reduce, and described central platform 31 rises; Then opposite described central platform 31 descends when left-handed.
So, be not limited thereto, in another embodiment, when the described central platform of lift adjustment, left handle 372 that also can left-handed bar 37 1 ends of turn, two nuts relatively move when left-handed, 38 angle theta of two symmetric support levers reduce, and described central platform 31 rises; Then opposite described central platform 31 descends during dextrorotation.
Cooperate described two support lever 38 of described left-handed bar 37 and dextrorotation bar 36 to be symmetricly set between described central platform 31 and the described center stand 33, the top of described two support lever 38 is movably connected on a crossbeam 39 respectively, described two crossbeams 39 have the nut 391 of anti-, the forward screw thread 371,361 of corresponding described left and right swing arm 37,36 respectively, and the bottom of described two support lever 38 is movably connected on the described center stand 33; In present embodiment, the nut 391 of described two crossbeams 39 revolves respectively on anti-, the forward screw thread 371,361 of being located at described left and right swing arm 37,36, the 39 opposing parallel settings of described two crossbeams, and the described relatively left and right swing arm 37,36 of described two crossbeams 39 vertically is provided with.
When the described central platform 31 of lift adjustment, operate described left-handed bar 37 or dextrorotation bar 36, change the relative angle θ of described two support lever 38 by the rotation of described left-handed bar 37 and dextrorotation bar 36, and then drive described central platform 31 by described crossbeam 39 and see through described camshaft bearing formula linear rolling track 34 and on described center stand 33, carry out lift adjustment, when treating that described central platform 31 adjustment are in place, stable will adjust central platform in place 31 lockings by the dovetail guide mode.
In sum, the present invention mainly is that the positive backpitch transmission simultaneously by the left and right swing arm of horizontal direction is finished the continuous adjustable lifting position of central platform vertical direction with the support lever principle of combined action of symmetry in the specific confined space, for ensureing the reliable and stable and practicability and effectiveness of this function technology of realization, be aided with camshaft bearing formula linear rolling track structure technology, dovetail locking mechanism technology and guard technology that off-centre presets rigidity, and the workpiece centre high measurement method of easy qualitative, quantitative.Advantages such as the present invention compared with prior art has simple in structure, and is advanced and applicable, reliable and stable, easy and simple to handle, and cost is lower, and the life-span is long.So compared with prior art, the present invention has effectively overcome various shortcoming of the prior art and the tool high industrial utilization.
The foregoing description is illustrative principle of the present invention and effect thereof only, but not is used to limit the present invention.Any personage who has the knack of this technology all can be under spirit of the present invention and category, and the foregoing description is modified or changed.Therefore, have in the technical field under such as and know that usually the knowledgeable modifies or changes not breaking away from all equivalences of being finished under disclosed spirit and the technological thought, must be contained by claim of the present invention.
Claims (9)
1. the continuous adjustable mechanism of centerless grinder centre frame lifting is characterized in that, comprises at least:
Central platform connects the workpiece guide plate that is used to carry workpiece to be ground;
The center stand, carry described central platform, and be provided with displacement accuracy is constant when ensureing described central platform lift adjustment camshaft bearing formula linear rolling track between described central platform and the described center stand and in order to adjust the locking piece of the described central platform that locks when in place;
Left and right swing arm is striden the left and right sides of being located at described central platform respectively in horizontal direction, and described dextrorotation bar has the forward screw thread, and described left-handed bar has reverse thread; And
Two support lever, described two support lever are symmetricly set between described central platform and the described center stand, the top of described two support lever is movably connected on a crossbeam respectively, described two crossbeams have the nut of anti-, the forward screw thread of corresponding described left and right swing arm respectively, and the bottom of described two support lever is movably connected on the stand of described center;
Wherein, when the described central platform of lift adjustment, operate described left-handed bar or dextrorotation bar, change the relative angle of described two support lever by the rotation of described left-handed bar and dextrorotation bar, and then drive described central platform by described crossbeam and see through described camshaft bearing formula linear rolling track and on the stand of described center, carry out lift adjustment.
2. the continuous adjustable mechanism of centerless grinder centre frame as claimed in claim 1 lifting is characterized in that: described camshaft bearing formula linear rolling track is the eccentric camshaft bearing formula linear rolling track that presets rigidity.
3. the continuous adjustable mechanism of centerless grinder centre frame as claimed in claim 2 lifting is characterized in that: described camshaft bearing formula linear rolling track is the guiding rail of described centre frame lifting.
4. the continuous adjustable mechanism of centerless grinder centre frame as claimed in claim 1 lifting is characterized in that: described locking piece is dovetail guide and lock(ing) bolt.
5. the continuous adjustable mechanism of centerless grinder centre frame as claimed in claim 1 lifting is characterized in that: described left-handed bar has left handle, and described dextrorotation bar has right handle.
6. the continuous adjustable mechanism of centerless grinder centre frame as claimed in claim 5 lifting is characterized in that: described left and right swing arm is formed in one.
7. the continuous adjustable mechanism of centerless grinder centre frame as claimed in claim 1 lifting is characterized in that: the nut of described two crossbeams revolves respectively on anti-, the forward screw thread of being located at described left and right swing arm.
8. the continuous adjustable mechanism of centerless grinder centre frame as claimed in claim 1 lifting is characterized in that: described two crossbeam opposing parallel are provided with.
9. the continuous adjustable mechanism of centerless grinder centre frame as claimed in claim 8 lifting is characterized in that: the described relatively left and right swing arm of described two crossbeams vertically is provided with.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910199877A CN102085626B (en) | 2009-12-03 | 2009-12-03 | Continuous lifting adjustable mechanism for center frame of centerless grinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910199877A CN102085626B (en) | 2009-12-03 | 2009-12-03 | Continuous lifting adjustable mechanism for center frame of centerless grinder |
Publications (2)
| Publication Number | Publication Date |
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| CN102085626A true CN102085626A (en) | 2011-06-08 |
| CN102085626B CN102085626B (en) | 2012-09-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN200910199877A Active CN102085626B (en) | 2009-12-03 | 2009-12-03 | Continuous lifting adjustable mechanism for center frame of centerless grinder |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110125847A (en) * | 2019-06-28 | 2019-08-16 | 范梅伦 | A kind of self-centering fixture |
| CN111604728A (en) * | 2019-02-22 | 2020-09-01 | 博格华纳公司 | Centerless grinding using helical twist to axial grooves |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN86209906U (en) * | 1986-12-10 | 1987-08-26 | 郑州磨料磨具磨削研究所 | Centreless grinding device |
| CH682380A5 (en) * | 1990-07-25 | 1993-09-15 | Agathon Ag Maschf | Method and apparatus for external cylindrical grinding a cylindrical workpiece. |
| CN2666604Y (en) * | 2003-06-21 | 2004-12-29 | 陈强 | Multi-grinding head centreless grinding machine |
| CN201002208Y (en) * | 2007-02-07 | 2008-01-09 | 重庆大学 | Centerless grinder material holding transmission device |
| CN201552477U (en) * | 2009-12-03 | 2010-08-18 | 上海莱必泰数控机床股份有限公司 | Lifting continuous adjustable mechanism of centerless grinding machine center frame |
-
2009
- 2009-12-03 CN CN200910199877A patent/CN102085626B/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111604728A (en) * | 2019-02-22 | 2020-09-01 | 博格华纳公司 | Centerless grinding using helical twist to axial grooves |
| CN111604728B (en) * | 2019-02-22 | 2023-08-08 | 博格华纳公司 | Centreless grinding of axial grooves by helical twisting |
| CN110125847A (en) * | 2019-06-28 | 2019-08-16 | 范梅伦 | A kind of self-centering fixture |
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| Publication number | Publication date |
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| CN102085626B (en) | 2012-09-05 |
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