CN211136527U - Cylindrical grinding accurate positioning device - Google Patents
Cylindrical grinding accurate positioning device Download PDFInfo
- Publication number
- CN211136527U CN211136527U CN201921816164.6U CN201921816164U CN211136527U CN 211136527 U CN211136527 U CN 211136527U CN 201921816164 U CN201921816164 U CN 201921816164U CN 211136527 U CN211136527 U CN 211136527U
- Authority
- CN
- China
- Prior art keywords
- tensioning
- cover
- core
- cylindrical grinding
- positioning device
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Grinding Of Cylindrical And Plane Surfaces (AREA)
Abstract
The utility model provides a device of cylindrical grinder accurate positioning belongs to cylindrical grinder technical field, has solved at the in-process that the excircle ground, and the concentricity can not reach the problem of required precision. The utility model discloses a core cover, core cover one end be equipped with and be used for the pivot of being connected with the lathe main shaft, the other end is equipped with and is used for the cover to establish the tensioning cover of waiting to process the work piece, still including being used for inserting the straining device that the tensioning cover made its expansion, the tensioning cover keep away from pivot one side and still be equipped with the locking mechanism that can will wait to process work piece axial position locking. The utility model discloses an establish tensioning cover and tensioning shaft, both cooperate and expand in treating the processing work piece and tighten up, guarantee to treat zero clearance between processing work piece and the tensioning cover, have promoted the precision of concentricity to the back locking section cooperation through locking mechanism and tensioning shaft realizes that work piece axial direction locks, ensures that axial direction is fixed in the course of working.
Description
Technical Field
The utility model belongs to the technical field of the peripheral milling, particularly, relate to a peripheral milling accurate positioning's device.
Background
The cylindrical grinding is also called cylindrical grinding, and is mainly carried out on an outer cylindrical grinding machine and used for grinding the outer cylinder, the outer cone and the shaft shoulder end surface of the shaft workpiece. During grinding, the workpiece is rotated at a low speed, and if the workpiece is longitudinally reciprocated at the same time and the grinding wheel is transversely fed relative to the workpiece after each single or double stroke of the longitudinal movement, the method is called longitudinal grinding method.
In the process of cylindrical grinding in the prior art, a workpiece and a core sleeve cannot be locked, so that the concentricity of the workpiece and the core sleeve cannot meet the precision requirement.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a device of cylindrical grinder accurate positioning to the above-mentioned problem that exists among the prior art.
The purpose of the utility model can be realized by the following technical proposal: the utility model provides a device of cylindrical grinder accurate positioning, includes the core cover, core cover one end be equipped with be used for with the pivot of being connected of lathe main shaft, the other end is equipped with and is used for the cover to establish the tensioning cover of treating the processing work piece, this device is still including being used for inserting the straining device that the tensioning cover made its expansion, the tensioning cover keep away from pivot one side and still be equipped with the locking mechanism that can will treat processing work piece axial position locking.
After the tensioning mechanism is inserted into the tensioning sleeve, the tensioning sleeve expands, the outer diameter of the tensioning sleeve is increased, and the tensioning mechanism can be pressed on the inner peripheral surface of a workpiece to be machined, so that no gap is reserved between the workpiece to be machined and the tensioning sleeve, the concentricity of the core sleeve and the workpiece to be machined is guaranteed, the workpiece to be machined and a machine tool spindle are prevented from being deviated in the center of a circle, and the workpiece to be machined generates jumping tolerance when the spindle rotates, so that the machining precision is influenced.
In the above-mentioned device for external grinding accurate positioning, the tensioning mechanism include the tensioning axle that can insert in the tensioning sleeve, the tensioning axle divide into can with the preceding locking section of tensioning sleeve locking, can make the expansion portion of tensioning sleeve expansion, can with the back locking section of locking mechanism locking.
The front locking section and the expansion part enter the tensioning sleeve to be locked circumferentially, and the rear locking section is matched with the locking mechanism to be locked axially.
In the above device for external grinding accurate positioning, the locking mechanism comprises a gland arranged on the outer side of the tensioning sleeve, one side of the gland can be pressed on the part to be processed, the other side of the gland is provided with a gland nut, the rear locking section is provided with external threads, and the gland nut is matched and locked with the external threads of the rear locking section.
The compression nut is matched with the external thread on the outer side of the rear locking section to move along the axis direction of a working line, so that the gland is pushed to compress or loosen a workpiece, the axial direction of the workpiece is locked, and the axial direction is fixed in the machining process.
In the device for accurately positioning the cylindrical grinder, the outer side of the front locking section is provided with an external thread, and the inner side of the tensioning sleeve is provided with an internal thread matched with the external thread of the front locking section.
In the above-mentioned cylindrical grinding accurate positioning device, the tensioning sleeve include the main core that is the integral type with the pivot and link firmly in the supplementary core of main core outer peripheral face. The main core is the main expansion target, and the auxiliary core plays a role in tightening after the main core is expanded.
In the device for accurately positioning the external grinding machine, the main core is made of metal, and the auxiliary core is nested outside the main core and made of flexible material. The main core is made of metal so as to prevent damage caused by over expansion, and the auxiliary core is made of flexible material so as to be matched with the main core to be properly expanded and tightened after the main core is expanded.
In the above device for external cylindrical grinding accurate positioning, the flexible material is plastic, rubber or nylon.
In the above-mentioned device for cylindrical grinding accurate positioning, the tensioning sleeve include a plurality of arc portion that circumference distributes, each arc portion forms cylindric and the tensioning sleeve of external diameter adjustable. The division into several pieces facilitates the expansion.
In the above cylindrical grinding accurate positioning device, the tensioning sleeve is composed of three equally divided arc-shaped parts. The arc divided into three equal parts is stable.
In the device for accurately positioning the cylindrical grinding, the inner ring of the tensioning sleeve is provided with a guide cambered surface. The guiding cambered surface is used for guiding the tensioning shaft, so that the tensioning shaft can be conveniently inserted into the tensioning sleeve more quickly.
Compared with the prior art, the utility model discloses an establish tensioning cover and tensioning shaft, both cooperate and expand in waiting to process the work piece and tighten up, guarantee to wait to process zero clearance between work piece and the tensioning cover, prevent to wait to process the work piece and the pivot centre of a circle skew appears, have promoted the precision of concentricity to realize work piece axial direction locking through the back locking section cooperation of locking mechanism and tensioning shaft, ensure that axial direction is fixed in the course of working.
Drawings
Fig. 1 is an exploded view of the present invention;
fig. 2 is a schematic view of the three-dimensional structure of the tension sleeve of the present invention;
fig. 3 is a schematic view of the assembled three-dimensional structure of the present invention.
In the figure, 1, a core sleeve; 2. a rotating shaft; 3. a workpiece to be processed; 4. a tensioning sleeve; 41. a primary core; 42. auxiliary cores; 43. an arc-shaped portion; 44. a guiding cambered surface; 5. a tensioning mechanism; 51. tensioning the shaft; 511. a front locking section; 512. an expansion section; 513. a rear locking section; 6. a locking mechanism; 61. a gland; 62. and (5) pressing the nut.
Detailed Description
The following are specific embodiments of the present invention and the accompanying drawings are used to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.
As shown in fig. 1-2, the utility model discloses a core cover 1, 1 one end of core cover is equipped with the pivot 2 that is used for being connected with the lathe main shaft, and the other end is equipped with and is used for the cover to establish the tensioning cover 4 of waiting to process work piece 3, and this device is still including being used for inserting tensioning cover 4 and making its expanded straining device 5, tensioning cover 4 keep away from pivot 2 one side and still be equipped with the locking mechanism 6 that can will wait to process 3 axial position locks of work piece.
After the tensioning mechanism 5 is inserted into the tensioning sleeve 4, the tensioning sleeve 4 is expanded, the outer diameter of the tensioning sleeve 4 is increased, and the tensioning mechanism can be pressed on the inner circumferential surface of the workpiece 3 to be machined, so that no gap is reserved between the workpiece 3 to be machined and the tensioning sleeve 4, the concentricity of the core sleeve 1 and the workpiece 3 to be machined is guaranteed, the phenomenon that the center of a circle of the workpiece 3 to be machined deviates from the main shaft of a machine tool is prevented, and the workpiece 3 to be machined generates jumping tolerance when the main shaft rotates, so that the machining precision is.
The tensioning means 5 comprises a tensioning shaft 51 insertable into the tensioning sleeve 4, said tensioning shaft 51 being divided into a front locking section 511 lockable with the tensioning sleeve 4, an expansion section 512 expandable with the tensioning sleeve 4, and a rear locking section 513 lockable with the locking means 6. The front locking section 511 and the expansion part 512 enter the tension sleeve 4 to be locked circumferentially, and the rear locking section 513 is matched with the locking mechanism 6 to be locked axially. The outer side of the front locking section 511 is provided with an external thread, and the inner side of the tension sleeve 4 is provided with an internal thread matched with the external thread of the front locking section 511.
The locking mechanism 6 comprises a pressing cover 61 arranged on the outer side of the tensioning sleeve 4, one side of the pressing cover 61 can be pressed on a part to be processed, a pressing nut 62 is arranged on the other side of the pressing cover 61, an external thread is arranged on the rear locking section 513, and the pressing nut 62 is matched and locked with the external thread of the rear locking section 513. The compression nut 62 is matched with the external thread on the outer side of the rear locking section 513 to move along the axial direction of a working line, so that the gland 61 is pushed to compress or loosen a workpiece, the axial direction of the workpiece is locked, and the axial direction is fixed in the machining process.
As shown in fig. 3, the tension sleeve 4 includes a main core 41 integrated with the rotation shaft 2 and an auxiliary core 42 attached to an outer peripheral surface of the main core 41. The primary core 41 is the primary expansion target and the secondary core 42 is intended to provide a tightening effect after expansion of the primary core 41. The main core 41 is made of metal, and the auxiliary core 42 is nested outside the main core 41 and made of flexible material, wherein the flexible material is plastic, rubber or nylon. The primary core 41 is made of metal to prevent damage due to over-expansion, and the secondary core 42 is made of flexible material to allow the primary core 41 to expand and contract properly in cooperation with the primary core 41 after expansion.
The tensioning sleeve 4 comprises a plurality of circumferentially distributed arc-shaped portions 43, and each arc-shaped portion 43 forms a cylindrical tensioning sleeve 4 with an adjustable outer diameter. The division into several pieces facilitates the expansion. The tensioning sleeve 4 consists of three equally divided arcuate portions 43. The arc 43 divided into three equal parts is stable. The inner ring of the tensioning sleeve 4 is provided with a guide cambered surface 44. The guiding contour 44 is intended to guide the tensioning shaft 51, so that the tensioning shaft 51 can be inserted into the tensioning sleeve 4 more quickly.
The utility model discloses the working process: the method comprises the steps of sleeving a workpiece 3 to be machined on a core sleeve 1, tightly attaching a gland 61 to the workpiece 3 to be machined, aligning the inner diameter of the gland 61 with the inner diameter of a main core 41, holding a tensioning shaft 51, inserting the tensioning sleeve 4 from an inner ring of the gland 61, slowly locking the tensioning sleeve through matching of an external thread of a front locking section 511 and an internal thread of the main core 41, pressing the tensioning sleeve 4 into an expansion part 512 to expand until the tensioning sleeve 4 cannot be inserted continuously to realize no clearance between the inner ring of the workpiece and the tensioning sleeve 4, sleeving a gland nut 62 on a rear locking section 513, locking the external thread of the rear locking section 513, matching of the gland 61 and the internal thread of the gland 62 until the gland 62 is tightly attached to the gland 61, and finally connecting a device after the workpiece 3 to be machined is locked to a main shaft of an outer circle grinding machine tool through a rotating shaft 2.
Compared with the prior art, the utility model discloses an establish tensioning sleeve 4 and tensioning shaft 51, both cooperate and expand to tighten up in waiting to process work piece 3, guarantee to wait to process between work piece 3 and the tensioning sleeve 4 zero clearance, prevent to wait to process work piece 3 and pivot 2 centre of a circle skew to locking of work piece axial direction is realized in the cooperation of back locking section 513 through locking mechanism 6 and tensioning shaft 51, ensures that axial direction is fixed in the course of working.
The specific embodiments described herein are merely illustrative of the spirit of the invention.
Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.
Claims (10)
1. The utility model provides a device of cylindrical grinder accurate positioning which characterized in that: including core cover (1), core cover (1) one end be equipped with be used for with lathe main shaft be connected pivot (2), the other end is equipped with and is used for the cover to establish tensioning cover (4) of treating processing work piece (3), this device is still including being used for inserting tensioning cover (4) and making its straining device (5) that expand, tensioning cover (4) keep away from pivot (2) one side and still be equipped with locking mechanism (6) that can will treat processing work piece (3) axial position locking.
2. The cylindrical grinding accurate positioning device according to claim 1, characterized in that: straining device (5) including can insert tensioning shaft (51) in tensioning sleeve (4), tensioning shaft (51) divide into can with tensioning sleeve (4) locking preceding locking section (511), can make tensioning sleeve (4) expansion expanding portion (512), can with locking mechanism (6) locking back locking section (513).
3. The cylindrical grinding accurate positioning device according to claim 2, characterized in that: locking mechanism (6) including setting up in gland (61) in the tensioning cover (4) outside, but gland (61) one side roof pressure on waiting to process the part, the opposite side is equipped with gland nut (62), back locking section (513) be equipped with the external screw thread, gland nut (62) and the external screw thread cooperation locking of back locking section (513).
4. The cylindrical grinding accurate positioning device according to claim 2, characterized in that: preceding locking section (511) outside be equipped with the external screw thread, tensioning cover (4) inboard be equipped with the external screw thread complex internal thread of preceding locking section (511).
5. An external cylindrical grinding precision positioning device according to claim 1 or 2 or 3 or 4, characterized in that: the tensioning sleeve (4) comprises a main core (41) and an auxiliary core (42), wherein the main core (41) and the rotating shaft (2) are integrated, and the auxiliary core (42) is fixedly connected to the peripheral surface of the main core (41).
6. The cylindrical grinding accurate positioning device according to claim 5, wherein: the main core (41) is made of metal, and the auxiliary core (42) is nested outside the main core (41) and made of flexible materials.
7. The cylindrical grinding accurate positioning device according to claim 6, wherein: the flexible material is plastic, rubber or nylon.
8. An external cylindrical grinding precision positioning device according to claim 1 or 2 or 3 or 4, characterized in that: tensioning cover (4) include arc portion (43) that a plurality of circumference distributes, each arc portion (43) form cylindricly and external diameter adjustable tensioning cover (4).
9. The cylindrical grinding accurate positioning device according to claim 8, wherein: the tensioning sleeve (4) consists of three arc-shaped parts (43) which are equally divided.
10. An external cylindrical grinding precision positioning device according to claim 1 or 2 or 3 or 4, characterized in that: the inner ring of the tensioning sleeve (4) is provided with a guide arc surface (44).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921816164.6U CN211136527U (en) | 2019-10-26 | 2019-10-26 | Cylindrical grinding accurate positioning device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921816164.6U CN211136527U (en) | 2019-10-26 | 2019-10-26 | Cylindrical grinding accurate positioning device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211136527U true CN211136527U (en) | 2020-07-31 |
Family
ID=71771514
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921816164.6U Expired - Fee Related CN211136527U (en) | 2019-10-26 | 2019-10-26 | Cylindrical grinding accurate positioning device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211136527U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112692664A (en) * | 2020-12-28 | 2021-04-23 | 浙江朋诚科技有限公司 | Grinding machine for flinger reconstructed by numerical control inclined turning and implementation method thereof |
-
2019
- 2019-10-26 CN CN201921816164.6U patent/CN211136527U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112692664A (en) * | 2020-12-28 | 2021-04-23 | 浙江朋诚科技有限公司 | Grinding machine for flinger reconstructed by numerical control inclined turning and implementation method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP2002532263A (en) | Method and apparatus for grinding a workpiece with a center having a shape deviation | |
| CN211136527U (en) | Cylindrical grinding accurate positioning device | |
| CN107378008A (en) | A kind of compound tool for finishing inner hole of cylinder | |
| WO2016088614A1 (en) | Combined machining tool and machining method using same | |
| CN108436124A (en) | A kind of symmetrical bikini expanding arbor fixture | |
| CN214393531U (en) | Rapid positioning fixture for eccentric crankshaft eccentric cylindrical grinding | |
| CN109128885A (en) | Thin-wall tube-shaped excircle of workpiece turning clamping tooling and clamping method | |
| US5957636A (en) | Quick change tool locking and alignment system | |
| CN211276568U (en) | Tensioning tool for turning impeller machining | |
| WO2013114527A1 (en) | Honing tool | |
| US4173852A (en) | Expandable tool including cutting section and pilot | |
| US20030207657A1 (en) | Tool and method for finishing an outside diameter surface of a cylindrical workpiece | |
| CN210588736U (en) | Universal adjusting double-feeding honing head | |
| JP7034970B2 (en) | Turning method and jig for turning | |
| CN207914615U (en) | A kind of Internal hole positioning machining tool | |
| JPH0639607A (en) | Compound machining tool for floating cutting and roller burnishing | |
| US2842839A (en) | Method of making expanding mandrels | |
| US6561888B2 (en) | Tool for sizing an O.D. surface of a cylindrical workpiece | |
| CN207026507U (en) | A kind of compound tool for finishing inner hole of cylinder | |
| CN212527396U (en) | Abrasive bar grinding tool | |
| US4527357A (en) | Internal grinding machine | |
| JPH03184714A (en) | Structure of broach and grinding method thereof | |
| CN214869197U (en) | Cylindrical mandrel assembly for cylindrical grinding machine | |
| KR101260746B1 (en) | center plug with the chuckjaw of taper | |
| CN208840978U (en) | A kind of adjustable-angle fixture |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200731 Termination date: 20211026 |