CN113927056A - Positioning device for machining eccentric workpiece - Google Patents
Positioning device for machining eccentric workpiece Download PDFInfo
- Publication number
- CN113927056A CN113927056A CN202111057126.9A CN202111057126A CN113927056A CN 113927056 A CN113927056 A CN 113927056A CN 202111057126 A CN202111057126 A CN 202111057126A CN 113927056 A CN113927056 A CN 113927056A
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- key
- positioning
- eccentric
- positioning device
- disc
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- 238000003754 machining Methods 0.000 title claims description 12
- 238000003825 pressing Methods 0.000 claims abstract description 16
- 210000000078 claw Anatomy 0.000 claims description 19
- 230000000712 assembly Effects 0.000 claims description 7
- 238000000429 assembly Methods 0.000 claims description 7
- 238000000034 method Methods 0.000 abstract description 11
- 238000010923 batch production Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000007514 turning Methods 0.000 description 1
Images
Classifications
-
- 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
- B23B31/02—Chucks
- B23B31/10—Chucks characterised by the retaining or gripping devices or their immediate operating means
- B23B31/103—Retention by pivotal elements, e.g. catches, pawls
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Gripping On Spindles (AREA)
Abstract
The invention discloses a positioning device for processing an eccentric workpiece, which comprises: the clamping device comprises a clamping disc, a switching disc, a positioning core disc and a pressing plate; the adapter plate is arranged on the chuck; the positioning core disc is detachably arranged on the adapter disc and is used for bearing the eccentric workpiece, and the eccentric distance of the eccentric workpiece is adjusted by adjusting the positioning core disc; after the eccentricity is determined, the eccentric workpiece is fixed on the positioning core disc through the pressing plate. The positioning device has the advantages of convenient use, rapid positioning and high processing efficiency; meanwhile, the positioning device has universality, so that the positioning core disc can be replaced to process eccentric workpieces with different diameters; the eccentricity is adjusted on the adapter plate through the positioning core plate.
Description
Technical Field
The invention belongs to the technical field of eccentric workpiece machining, and particularly relates to a positioning device for machining an eccentric workpiece on a lathe.
Background
When an eccentric workpiece is machined on a lathe, measures are mostly taken in the aspect of clamping, namely, the axis of an eccentric part to be machined is aligned to be coincident with the rotation axis of a lathe spindle. The prior art methods generally employ scribing, shimming, eccentric chuck methods, and the like. The marking method is to align according to a marked eccentric circle, but marking errors and alignment errors exist; the gasket adding method is to add a gasket on one jaw of the three-jaw self-centering chuck, but the method is only suitable for processing eccentric workpieces with short length, small eccentric distance and low precision requirement; the eccentric chuck method is only suitable for processing eccentric workpieces such as short shafts, discs and sleeves.
The inventor finds that when the eccentric parts are positioned, the methods often cannot process eccentric workpieces with high precision due to inaccurate positioning, have low processing efficiency and cannot process eccentric workpieces with different diameters.
Therefore, it is desirable to develop a positioning device for machining eccentric workpieces that overcomes the above-mentioned drawbacks.
Disclosure of Invention
In view of the above-mentioned drawbacks, the present invention provides a positioning device for processing an eccentric workpiece, which is used to at least solve the technical problems of inaccurate positioning of an eccentric part, difficult processing of the eccentric workpiece, and low efficiency.
The positioning device of the present invention comprises: the clamping device comprises a clamping disc, a switching disc, a positioning core disc and a pressing plate; the adapter plate is arranged on the chuck; the positioning core disc is detachably arranged on the adapter disc and is used for bearing an eccentric workpiece, and the eccentric distance of the eccentric workpiece is adjusted by adjusting the positioning core disc; and after the eccentric distance is determined by the pressing plate, fixing the eccentric workpiece on the positioning core disc through the pressing plate.
In the positioning device, the chuck is provided with at least one claw part, and the adapter plate is fixed by the claw part.
In the positioning device, the adapter plate is provided with two first key slots arranged in parallel, the first key slots are connected through the first connecting assembly to fix the positioning core plate on the adapter plate, the first connecting assembly is loosened, and the positioning core plate can move in the direction of the first key slots to adjust the distance from the central axis of rotation of the spindle.
In the above positioning device, each first connecting assembly includes a first key and a screw, the first key is disposed in the first key slot, and the screw passes through the positioning core disc and is connected to the first key.
In the positioning device, the adapter plate is provided with two second key slots arranged in parallel, and the second key slots and the pressing plate are connected through the second connecting assembly to fix the eccentric workpiece.
In the above-mentioned positioning device, each of the second connecting members includes:
a second key disposed in the second keyway;
and one end of the connecting column is connected to the second key, and the other end of the connecting column is connected to the pressing plate.
In the positioning device, the pressing plate is provided with an open slot, and the other end of the connecting column is connected to the open slot through a nut.
In the above-mentioned positioning device, the chuck further includes a base, and the four claw portions are disposed on the base in a cross shape.
In the above positioning device, the first key groove is a T-shaped groove, and the first key is a T-shaped key.
In the above positioning device, the second key groove is a T-shaped groove, and the second key is a T-shaped key.
Compared with the prior art, the positioning device has the advantages that the technical problems of difficulty in machining and low efficiency of the existing eccentric workpiece are solved by the positioning device, and meanwhile, the positioning core disc can be adjusted by sliding the T-shaped groove of the adapter disc and the distance between the T-shaped groove of the adapter disc and the turning center of the lathe, so that eccentric workpieces with different eccentric distances can be machined, and eccentric workpieces with different diameters can be machined by replacing positioning core discs with different diameters.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and those skilled in the art can also obtain other drawings according to the drawings without creative efforts.
FIG. 1 is an isometric view of the positioning device of the present invention;
FIG. 2 is a top view of the positioning device of the present invention installed;
FIG. 3 is a schematic cross-sectional view of the positioning device of the present invention installed.
Wherein, the reference numbers:
chuck: 11;
base: 111;
a claw portion: 112, a first electrode;
switching the disk: 12;
first key groove: 121, a carrier;
a second key groove: 122;
positioning a core disc: 13;
pressing a plate: 14;
opening a groove: 141, a solvent;
a first connection assembly: 15;
a first key: 151, and (b);
screw: 152;
a second connecting assembly: 16;
a second key: 161;
connecting a column: 162;
eccentric work piece: 2;
lathe spindle: 3;
the central axis of rotation: l;
fastening a nut: n1;
nut: n2;
gasket: w is added.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The exemplary embodiments of the present invention and the description thereof are provided to explain the present invention and not to limit the present invention. Additionally, the same or similar numbered elements/components used in the drawings and the embodiments are used to represent the same or similar parts.
As used herein, the terms "first", "second", "S1", "S2", …, etc. do not particularly denote an order or sequential meaning, nor are they intended to limit the present invention, but merely distinguish between elements or operations described in the same technical terms.
With respect to directional terminology used herein, for example: up, down, left, right, front or rear, etc., are simply directions with reference to the drawings. Accordingly, the directional terminology used is intended to be illustrative and is not intended to be limiting of the present teachings.
As used herein, the terms "comprising," "including," "having," "containing," and the like are open-ended terms that mean including, but not limited to.
As used herein, "and/or" includes any and all combinations of the described items.
References to "plurality" herein include "two" and "more than two"; reference to "multiple sets" herein includes "two sets" and "more than two sets".
Certain words used to describe the present application are discussed below or elsewhere in this specification to provide additional guidance to those skilled in the art in describing the present application.
The eccentric workpiece is a workpiece with axes of an outer circle and an outer circle or an inner hole parallel to but not coincident with the axis of the outer circle (deviated from each other by a certain distance), the workpiece with the eccentric outer circle and the eccentric outer circle is an eccentric shaft, the workpiece with the eccentric inner hole and the eccentric outer circle is an eccentric sleeve, and the distance between the two parallel axes is an eccentric distance.
Referring to fig. 1-3, fig. 1 is a side view of a positioning device mounting shaft according to the present invention; FIG. 2 is a top view of the positioning device of the present invention installed; FIG. 3 is a schematic cross-sectional view of the positioning device of the present invention installed. As shown in fig. 1 to 3, a positioning apparatus for machining an eccentric workpiece according to the present invention includes: the device comprises a chuck 11, an adapter disc 12, a positioning core disc 13 and a pressure plate 14; the adapter disc 12 is arranged on the chuck 11; the positioning core disc 13 is detachably arranged on the adapter disc 12 and is used for bearing the eccentric workpiece 2, and the eccentric distance of the eccentric workpiece 3 is adjusted by adjusting the positioning core disc 13; after the eccentricity is determined, the eccentric workpiece 2 is fixed on the positioning core disc 13 through the pressure plate 14.
The positioning device can easily correct the axis of the eccentric circle part to the position coinciding with the axis of the lathe spindle during processing, so that the clamping is simple, the alignment is easy, errors are not easy to generate, the positioning device is suitable for eccentric workpieces with high processing precision and the same eccentric distance, and is suitable for batch production.
Further, the chuck 11 includes a base 111 and at least one claw portion 112, the at least one claw portion 112 is disposed on the base 111, and the adaptor plate 12 is fixed by the claw portion 111. In this embodiment, the number of the claw portions 112 is four, and the claw portions are disposed on the base 111 in a cross shape.
In the present embodiment, four claw portions 112 are preferred, but the number of claw portions is not limited in the present invention, and in practice, the number of claw portions may be increased or decreased according to the use requirement.
Wherein, each claw part 112 is provided with at least one step part, thereby enabling the claw parts 112 to be adapted to the adapter discs 12 with different diameters.
In this embodiment, the base 111 and the claw portion 112 are formed as separate bodies, but in other embodiments, the base 111 and the claw portion 112 may be formed as an integral body.
Still further, two first key grooves 121 arranged in parallel are formed in the adapter plate 12, the first key grooves 121 are connected through the first connecting assembly 15 to fix the positioning core plate 13 on the adapter plate 12, the first connecting assembly 15 is loosened, and the positioning core plate 13 can move along the direction of the first key grooves 121 to adjust the distance from the rotation central axis of the spindle, so that the parallelism and the eccentricity accuracy of the axis can be controlled more easily.
In this embodiment, two first key slots 121 are formed in the adapter plate 12 in parallel, the positioning device includes two first connection assemblies 15, the two first connection assemblies 15 are connected to the two first key slots 121 in a one-to-one correspondence manner, each first connection assembly 15 includes a first key 151 and a screw 152, the first key 151 is disposed in the first key slot 121, and one end of the screw 152 penetrates through the positioning core plate 13 and is connected to the first key 151.
Specifically, after the positioning core disc 13 fixed on the adapter disc 12 can pass through the loose screw 152, the positioning core disc 13 can move along the direction of the first key groove 121, so as to slidably adjust the distance between the positioning core disc and the rotation central axis L of the lathe spindle 3, and further adjust the eccentricity of the eccentric workpiece 2, and thus, the purpose of processing eccentric workpieces with the same diameter can be achieved. Meanwhile, in the embodiment, the positioning core disc 13 is arranged in a detachable structure, so that the positioning core discs 13 with different diameters can be replaced, and the purpose of processing eccentric workpieces with different kinds of diameters is achieved.
Still further, two second key slots 122 are formed in the adapter plate 12 in parallel, and the second key slots 122 and the pressure plate 14 are connected through a second connecting assembly 16 to fix the eccentric workpiece 2.
In this embodiment, two second key slots 122 are formed in the adapter plate 12 in parallel, and two first key slots 121 are located between the two second key slots 122, wherein in this embodiment, the first key slots 121 may be arranged in parallel with the second key slots 122, the positioning device includes two second connecting assemblies 16, the two second connecting assemblies 16 are connected to the two second key slots 122 in a one-to-one correspondence manner, and each of the second connecting assemblies 16 includes: a second key 161 and a connection post 162; a second key 161 is disposed in the second key slot 122; one end of the connection column 162 is connected to the second key 161, and the other end of the connection column 162 is connected to the pressing plate 14 through a nut N2 and a washer W.
In this embodiment, one end of the connection column 162 is connected to the second key 161 and is fixed by a fastening nut N1.
Furthermore, an opening groove 141 is formed on the pressing plate 14, and the other end of the connecting column 162 is connected to the opening groove 141 through a nut N2.
Specifically, in the present embodiment, as shown in fig. 2, the pressing plate 14 is provided with an open slot 141, and one of the two connecting posts is connected to the open slot 141 through a nut N2 and a washer W, so that the eccentric workpiece 2 can be clamped and loosened quickly, and the eccentric workpiece can be clamped and installed more easily and easily.
In an embodiment of the present invention, the first key groove 121 is a T-shaped groove, and the first key is a T-shaped key 151.
In an embodiment of the present invention, the second key slot 122 is a T-shaped slot, and the second key 161 is a T-shaped key.
In an embodiment of the present invention, at least one of the adapter plate 12, the positioning core plate 13, and the chuck 11 is made of a metal material.
The following detailed description of the design, fabrication, assembly and use of the positioning device of the present invention with reference to specific embodiments is provided as follows:
firstly, turning an adapter plate 12 with a proper size, and processing a T-shaped groove on the adapter plate 12;
secondly, fixing the adapter plate 2 on the four claw parts 112, and aligning and clamping;
thirdly, machining a positioning core disc 13 according to the positioning size of the eccentric workpiece 2;
fourthly, calculating the eccentricity, and fixing the positioning core disc 13 on the adapter disc 12 through the connection of the hexagon screws 152 and the T-shaped keys 151;
fifthly, after the eccentric workpiece 2 is positioned by the positioning core disc 13, fixing the eccentric workpiece on the positioning core disc 13 by a pressure plate 14, a nut N2 and a washer W;
and sixthly, adjusting parameters and processing by a lathe.
In conclusion, the positioning device for machining the eccentric workpiece is designed by utilizing the machining technology and theoretical knowledge, and has the advantages of convenience in use, rapidness in positioning and high machining efficiency; meanwhile, the positioning device has universality, so that the positioning core disc can be replaced to process eccentric workpieces with different diameters; the eccentricity is adjusted on the adapter plate through the positioning core plate.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (10)
1. A positioning device for machining eccentric workpieces, comprising:
a chuck;
the adapter plate is arranged on the chuck;
the positioning core disc is detachably arranged on the adapter disc and is used for bearing an eccentric workpiece, and the eccentric distance of the eccentric workpiece is adjusted by adjusting the positioning core disc;
and the pressing plate is used for fixing the eccentric workpiece on the positioning core disc through the pressing plate after the eccentricity is determined.
2. The positioning apparatus of claim 1, wherein the chuck is provided with at least one claw portion by which the adapter plate is fixed.
3. The positioning device according to claim 1, wherein the adapter plate is provided with two first key slots arranged in parallel, the first key slots are connected through a first connecting assembly to fix the positioning core plate on the adapter plate, and the positioning core plate can move along the direction of the first key slots to adjust the distance from the rotation central axis of the spindle by loosening the first connecting assembly.
4. The positioning device of claim 3 wherein each of said first connection assemblies includes a first key disposed in said first keyway and a screw connected to said first key through said positioning core.
5. The positioning device as claimed in any one of claims 1 to 4, wherein the adapter plate is provided with two second key slots arranged in parallel, and the second key slots and the pressure plate are connected through a second connecting assembly to fix the eccentric workpiece.
6. The positioning apparatus of claim 5, wherein each of said second connecting assemblies comprises:
a second key disposed in the second keyway;
and one end of the connecting column is connected to the second key, and the other end of the connecting column is connected to the pressing plate.
7. The positioning device as set forth in claim 6, wherein said pressing plate is formed with an open groove, and the other end of said connecting column is connected to said open groove by a nut.
8. The positioning device as set forth in claim 2, wherein said chuck further includes a base, and said four claw portions are disposed on said base in a cross shape.
9. The positioning device of claim 4 wherein said first keyway is a T-slot and said first key is a T-key.
10. The positioning device of claim 5 wherein said second keyway is a T-slot and said second key is a T-key.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111057126.9A CN113927056B (en) | 2021-09-09 | 2021-09-09 | Positioning device for machining eccentric workpiece |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111057126.9A CN113927056B (en) | 2021-09-09 | 2021-09-09 | Positioning device for machining eccentric workpiece |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113927056A true CN113927056A (en) | 2022-01-14 |
| CN113927056B CN113927056B (en) | 2024-05-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111057126.9A Active CN113927056B (en) | 2021-09-09 | 2021-09-09 | Positioning device for machining eccentric workpiece |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003136313A (en) * | 2001-11-02 | 2003-05-14 | Mitsubishi Electric Corp | Chuck jig for eccentric machining |
| CN103273353A (en) * | 2013-05-10 | 2013-09-04 | 苏州东方模具科技股份有限公司 | Clamp structure used for eccentricity molding machining of glass mold |
| CN105563152A (en) * | 2014-11-07 | 2016-05-11 | 三峡大学 | Clamp for processing thin-wall bush |
| CN107470943A (en) * | 2017-09-13 | 2017-12-15 | 中原工学院 | A kind of offset flexible jig |
| CN208929788U (en) * | 2018-10-25 | 2019-06-04 | 硕泰机械(浙江)有限公司 | A kind of adjustable eccentric fixture |
| CN209021706U (en) * | 2018-11-21 | 2019-06-25 | 东莞市信迪机械工具有限公司 | A kind of cutter turning lathe |
-
2021
- 2021-09-09 CN CN202111057126.9A patent/CN113927056B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003136313A (en) * | 2001-11-02 | 2003-05-14 | Mitsubishi Electric Corp | Chuck jig for eccentric machining |
| CN103273353A (en) * | 2013-05-10 | 2013-09-04 | 苏州东方模具科技股份有限公司 | Clamp structure used for eccentricity molding machining of glass mold |
| CN105563152A (en) * | 2014-11-07 | 2016-05-11 | 三峡大学 | Clamp for processing thin-wall bush |
| CN107470943A (en) * | 2017-09-13 | 2017-12-15 | 中原工学院 | A kind of offset flexible jig |
| CN208929788U (en) * | 2018-10-25 | 2019-06-04 | 硕泰机械(浙江)有限公司 | A kind of adjustable eccentric fixture |
| CN209021706U (en) * | 2018-11-21 | 2019-06-25 | 东莞市信迪机械工具有限公司 | A kind of cutter turning lathe |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113927056B (en) | 2024-05-10 |
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