CN105081386A - Outward expansion type clamp for bearing ring - Google Patents

Outward expansion type clamp for bearing ring Download PDF

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Publication number
CN105081386A
CN105081386A CN201510526869.4A CN201510526869A CN105081386A CN 105081386 A CN105081386 A CN 105081386A CN 201510526869 A CN201510526869 A CN 201510526869A CN 105081386 A CN105081386 A CN 105081386A
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CN
China
Prior art keywords
base
carrier head
forms
transition disc
internal thread
Prior art date
Application number
CN201510526869.4A
Other languages
Chinese (zh)
Other versions
CN105081386B (en
Inventor
时大方
刘国仓
谢维兵
王辉
Original Assignee
浙江天马轴承有限公司
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 浙江天马轴承有限公司 filed Critical 浙江天马轴承有限公司
Priority to CN201510526869.4A priority Critical patent/CN105081386B/en
Publication of CN105081386A publication Critical patent/CN105081386A/en
Application granted granted Critical
Publication of CN105081386B publication Critical patent/CN105081386B/en

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23BTURNING; BORING
    • B23B31/00Chucks; Expansion mandrels; Adaptations thereof for remote control
    • B23B31/02Chucks
    • B23B31/10Chucks characterised by the retaining or gripping devices or their immediate operating means
    • B23B31/12Chucks with simultaneously-acting jaws, whether or not also individually adjustable
    • B23B31/16Chucks with simultaneously-acting jaws, whether or not also individually adjustable moving radially
    • B23B31/16233Jaws movement actuated by oblique surfaces of a coaxial control rod
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23QDETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q3/00Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
    • B23Q3/12Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine for securing to a spindle in general
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23QDETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q2703/00Work clamping
    • B23Q2703/02Work clamping means
    • B23Q2703/10Devices for clamping workpieces of a particular form or made from a particular material

Abstract

The invention discloses an outward expansion type clamp for a bearing ring. The outward expansion type clamp comprises a transition disc connected with a machine-tool main shaft, a chuck base connected with the transition disc, a positioning ring and a clamping jaw, wherein the positioning ring and the clamping jaw are installed on the chuck base. The chuck base is tubular. A clamping jaw installing part where the clamping jaw is installed is arranged on the front side of the chuck base. A fixing shoulder where the positioning ring is installed is formed at the portion, located on the back side of the clamping jaw installing part, of the chuck base. Six slotted grooves are axially formed in the wall face of the front portion of the chuck base at equal intervals. A conical surface with the wide outer portion and the narrow inner portion is formed on the inner circumference of the front end of the chuck base. The outward expansion type clamp further comprises a middle pull rod connected with a piston rod in the middle of the machine-tool main shaft and a front pull rod connected with the middle pull rod. A conical surface matched with the conical surface of the chuck base is formed on the outer wall of the back portion of the front pull rod. After the novel clamp comes into use, the installation speed is two times that of a traditional expansion type spring clamp, and the debugging time is a half of the original debugging time; and in addition, the outer diameter of the clamping jaw can be repeatedly polished, and the service life is several times that of the original clamp.

Description

The outer expanding fixture of a kind of bearing ring

Technical field

The present invention relates to the outer expanding fixture of a kind of bearing ring.

Background technology

The outer expanding spring perch that tradition uses, the parts required are many, and one newly processes outer expanding collet, generally by 6 lobes or 9 lobes even or 12 lobes form, a process that overall chuck is being slit into a few lobe can fix this few lobe with brazing simultaneously, after cutting open completely, owing to having fixing them or an entirety of brazing, the external diameter of chuck of regrinding is to ensure the concentricity and ovality etc. of he and chuck endoporus.New chuck first knocks out the brazing be used for fixing before use, then fixes with this few lobe chuck of two spring handles.So new outer expanding collet just can come into operation.Because outer expanding collet uses spring to fix, so after the wearing and tearing of chuck external diameter, have no idea to review one's lessons by oneself, only has the discarded chuck renewed.Fixture adjustment get up also more complicated, the time of strain, unclamping is long.

Summary of the invention

Technical problem to be solved by this invention is: the deficiency existed for prior art, provides the bearing ring that a kind of structure is simple, debugging is convenient, processing is simple, the clamping time is short outer expanding fixture.

For realizing the object of the present invention, be achieved by the following technical solutions: the outer expanding fixture of a kind of bearing ring, includes the transition disc be connected with machine tool chief axis, the base of the carrier head be connected with transition disc, and the locating ring be arranged on base of the carrier head and claw;

Described base of the carrier head in a tubular form, for installing the claw installation portion of claw on front side of base of the carrier head, base of the carrier head is positioned at the fixing shoulder forming on rear side of jaw installation portion and install locating ring;

The anterior wall of described base of the carrier head equidistantly offers 6 vertically and cuts open groove, in the middle part of described base of the carrier head wall, each position cutting open groove corresponding offers oval groove;

Described locating ring is made up of the locating ring lobe of 6 circular arcs, and described claw is made up of the claw lobe of 6 circular arcs

Described base of the carrier head front end inner circumferential is shaped to the conical surface wide outside and narrow inside;

Outer expanding fixture also comprise be connected with the piston rod in the middle of machine tool chief axis in pull bar, and the front tension bar be connected with middle pull bar, front tension bar rear portion outer wall forms the taper surface matched with the conical surface of described base of the carrier head.

Preferably: described base of the carrier head rearward end forms an outer flange collar, outer flange collar offers 3-4 fixing counterbore, on the wall of described transition disc front end, the position of corresponding fixing counterbore forms the first internal thread hole, fixes and is connected by screw between counterbore and the first internal thread hole

Preferably: described base of the carrier head rear end face forms the second cooperation concave station, the front end wall of described transition disc forms the cooperation boss coordinating concave station to coordinate with second to locate.

Preferably: described locating ring lobe rear end forms interior clamping ring, interior clamping ring offers two connecting through holes, on the fixing shoulder rear surface of described base of the carrier head often adjacent two cut open between groove and offer four internal thread hole corresponding with connecting through hole, and have between two described 4th internal thread hole connecting through holes and the 4th internal thread hole and be connected by screw.

Preferably: described claw lobe radially forms two second and connects counterbore, on described claw installation portion often adjacent two cut open to offer between groove and connect the 3rd internal thread hole corresponding to counterbore with second, second connects between counterbore and the 3rd internal thread hole and is connected by screw.

Preferably: described middle pull bar one end is the first external thread rod be threaded connection with piston rod, the middle pull bar other end is the second internal thread hole be threaded connection with front tension bar, and in the middle part of middle pull bar, outer wall forms the locating shoulder offseted with transition disc front end face; Offers the middle tension rod thru-hole passed for the first external thread rod in the middle of described transition disc, and transition disc front end be positioned at coordinate boss inner circumferential to be formed to coordinate with locating shoulder locate first coordinate concave station.

Preferably: the rear end wall of described transition disc forms the concave station coordinating with machine tool chief axis and locate.

Preferably: described middle pull bar forms the spanner auxiliary section with more than a pair parallel wall surface away from one end outer wall of the first external thread rod.

Preferably: one end of described front tension bar is the second external thread rod be threaded connection with middle pull bar, front tension bar other end end forms die nut hole.

Compared with prior art, the invention has the beneficial effects as follows: faster one times than the outer expanding spring perch of tradition in installation after new fixture comes into operation, debug time is faster one times than originally, and claw external diameter can repeatedly the reconditioning life-span improves several times than originally.

Accompanying drawing explanation

Fig. 1 is mounting structure schematic diagram of the present invention.

Fig. 2 is the structural representation of transition disc.

Fig. 3 is the sectional structure schematic diagram of transition disc.

Fig. 4 is the sectional structure schematic diagram of middle pull bar.

Fig. 5 is the structural representation in middle back end of tie rod face.

Fig. 6 is the structural representation of base of the carrier head.

Fig. 7 is the D-D sectional view of Fig. 6.

Fig. 8 is the F-F sectional view of Fig. 6.

Fig. 9 is the C-C sectional view of Fig. 6.

Figure 10 is the structural representation of locating ring

Figure 11 is the sectional structure schematic diagram of locating ring.

Figure 12 is the structural representation of jaw.

Figure 13 is the sectional structure schematic diagram of jaw.

Figure 14 is the structural representation of front tension bar.

1, transition disc; 11, concave station; 12, the first internal thread hole; 13, boss is coordinated; 14, middle tension rod thru-hole; 15, first coordinates concave station; 16, first connects counterbore; 2, middle pull bar; 21, the first external thread rod; 22, locating shoulder; 23, the first internal thread hole; 24, spanner auxiliary section; 3, base of the carrier head; 31, oval groove; 32, fixing shoulder; 33, the 3rd internal thread hole; 34, fixing counterbore; 35, the 4th internal thread hole; 36, groove is cut open; 37, second coordinate concave station, 38, the conical surface; 4, locating ring; 41, locating ring lobe; 42, connecting through hole; 5, claw; 51, claw lobe; 52, second connects counterbore; 6, front tension bar; 61 second external thread rods; 62, taper surface; 63, die nut hole.

Detailed description of the invention

With reference to the accompanying drawings the specific embodiment of the present invention is made a detailed explanation below.

According to shown in Fig. 1 to Figure 14, the present embodiment is the outer expanding fixture of a kind of bearing ring, includes the transition disc 1 be connected with machine tool chief axis 7, the base of the carrier head 3 be connected with transition disc, and the locating ring 4 be arranged on base of the carrier head and claw 5;

Described base of the carrier head in a tubular form, for installing the claw installation portion of claw on front side of base of the carrier head, base of the carrier head is positioned at the fixing shoulder 32 forming on rear side of jaw installation portion and install locating ring;

The anterior wall of described base of the carrier head equidistantly offers 6 vertically and cuts open groove 36, in the middle part of described base of the carrier head wall, each position cutting open groove corresponding offers oval groove 31;

Described locating ring 4 is made up of the locating ring lobe 41 of 6 circular arcs, and described claw 5 is made up of the claw lobe 51 of 6 circular arcs

Described base of the carrier head front end inner circumferential is shaped to the conical surface 38 wide outside and narrow inside;

Outer expanding fixture also comprise be connected with the piston rod in the middle of machine tool chief axis in pull bar 2, and the front tension bar 6 be connected with middle pull bar, front tension bar rear portion outer wall forms the taper surface 62 matched with the conical surface of described base of the carrier head.

Described transition disc offers 6 first connection counterbores 16, first connection counterbores to be connected with machine tool chief axis by screw.

Described base of the carrier head rearward end forms an outer flange collar, outer flange collar offers 3-4 fixing counterbore 34, on the wall of described transition disc front end, the position of corresponding fixing counterbore forms the first internal thread hole 12, fixes and is connected by screw between counterbore and the first internal thread hole.

Described base of the carrier head rear end face forms the second cooperation concave station 37, the front end wall of described transition disc forms the cooperation boss 13 coordinating concave station to coordinate with second to locate.

Described locating ring lobe rear end forms interior clamping ring, interior clamping ring offers two connecting through holes 42, on the fixing shoulder rear surface of described base of the carrier head often adjacent two cut open between groove and offer four internal thread hole 35 corresponding with connecting through hole, and have between two described 4th internal thread hole connecting through holes and the 4th internal thread hole and be connected by screw.

Described claw lobe radially forms two second and connects counterbore 52, on described claw installation portion often adjacent two cut open to offer between groove and to connect the 3rd internal thread hole 33, second corresponding to counterbore with second and connect between counterbore and the 3rd internal thread hole and be connected by screw.

Described middle pull bar one end is the first external thread rod 21 be threaded connection with piston rod, and the middle pull bar other end is the second internal thread hole 23 be threaded connection with front tension bar, and in the middle part of middle pull bar, outer wall forms the locating shoulder 22 offseted with transition disc front end face; Offers the middle tension rod thru-hole 14 passed for the first external thread rod in the middle of described transition disc, and transition disc front end be positioned at coordinate boss inner circumferential to be formed to coordinate with locating shoulder locate first coordinate concave station 15.

The rear end wall of described transition disc forms the concave station 11 coordinating with machine tool chief axis and locate.

Described middle pull bar forms the spanner auxiliary section 24 with more than a pair parallel wall surface away from one end outer wall of the first external thread rod.

One end of described front tension bar is the second external thread rod 62 be threaded connection with middle pull bar, and front tension bar other end end forms die nut hole 63.

First transition disc 1 is matched with machine tool chief axis 7 during assembling, then connecting counterbore by six first is screwed on lathe, then middle pull bar 2 is connected on piston rod, then base of the carrier head 3 is matched with transition disc, and be connected on transition disc by three the first internal thread hole screws, then claw lobe 51 being connected counterbore screw by second is connected on base of the carrier head, then locating ring lobe 41 is connected on base of the carrier head shoulder end face by connecting through hole again, finally front tension bar is connected on middle pull bar, the installation of outer like this expanding fixture, after having debugged concentricity, just lasso can be processed.Add man-hour, first lasso is put on claw, then steps on bucket cylinder pedal, pull bar during piston rod is driven, middle pull bar drives front tension bar, mobile to lathe inside, by the taper surface of front tension bar, claw is swollen clamping collar inner circumferential like this.

Above-described embodiment is only the preferred embodiment of the present invention, does not limit protection scope of the present invention with this, all equivalence changes done according to the scope of the claims of the present invention and description with modify, be all within scope that patent of the present invention contains.

Claims (9)

1. the outer expanding fixture of bearing ring, is characterized in that: include the transition disc be connected with machine tool chief axis, the base of the carrier head be connected with transition disc, and the locating ring be arranged on base of the carrier head and claw;
Described base of the carrier head in a tubular form, for installing the claw installation portion of claw on front side of base of the carrier head, base of the carrier head is positioned at the fixing shoulder forming on rear side of jaw installation portion and install locating ring;
The anterior wall of described base of the carrier head equidistantly offers 6 vertically and cuts open groove, in the middle part of described base of the carrier head wall, each position cutting open groove corresponding offers oval groove;
Described locating ring is made up of the locating ring lobe of 6 circular arcs, and described claw is made up of the claw lobe of 6 circular arcs
Described base of the carrier head front end inner circumferential is shaped to the conical surface wide outside and narrow inside;
Outer expanding fixture also comprise be connected with the piston rod in the middle of machine tool chief axis in pull bar, and the front tension bar be connected with middle pull bar, front tension bar rear portion outer wall forms the taper surface matched with the conical surface of described base of the carrier head.
2. the outer expanding fixture of a kind of bearing ring as claimed in claim 1, it is characterized in that: described base of the carrier head rearward end forms an outer flange collar, outer flange collar offers 3-4 fixing counterbore, on the wall of described transition disc front end, the position of corresponding fixing counterbore forms the first internal thread hole, fixes and is connected by screw between counterbore and the first internal thread hole.
3. the outer expanding fixture of a kind of bearing ring as claimed in claim 1 or 2, is characterized in that: described base of the carrier head rear end face forms the second cooperation concave station, the front end wall of described transition disc forms the cooperation boss coordinating concave station to coordinate with second to locate.
4. the outer expanding fixture of a kind of bearing ring as claimed in claim 1, it is characterized in that: described locating ring lobe rear end forms interior clamping ring, interior clamping ring offers two connecting through holes, on the fixing shoulder rear surface of described base of the carrier head often adjacent two cut open between groove and offer four internal thread hole corresponding with connecting through hole, and have between two described 4th internal thread hole connecting through holes and the 4th internal thread hole and be connected by screw.
5. the outer expanding fixture of a kind of bearing ring as claimed in claim 1, it is characterized in that: described claw lobe radially forms two second and connects counterbore, on described claw installation portion often adjacent two cut open to offer between groove and connect the 3rd internal thread hole corresponding to counterbore with second, second connects between counterbore and the 3rd internal thread hole and is connected by screw.
6. the outer expanding fixture of a kind of bearing ring as claimed in claim 1, it is characterized in that: described middle pull bar one end is the first external thread rod be threaded connection with piston rod, the middle pull bar other end is the second internal thread hole be threaded connection with front tension bar, and in the middle part of middle pull bar, outer wall forms the locating shoulder offseted with transition disc front end face; Offers the middle tension rod thru-hole passed for the first external thread rod in the middle of described transition disc, and transition disc front end be positioned at coordinate boss inner circumferential to be formed to coordinate with locating shoulder locate first coordinate concave station.
7. the outer expanding fixture of a kind of bearing ring as claimed in claim 1, is characterized in that: the rear end wall of described transition disc forms the concave station coordinating with machine tool chief axis and locate.
8. the outer expanding fixture of a kind of bearing ring as claimed in claim 1, is characterized in that: described middle pull bar forms the spanner auxiliary section with more than a pair parallel wall surface away from one end outer wall of the first external thread rod.
9. the outer expanding fixture of a kind of bearing ring as claimed in claim 1, it is characterized in that: one end of described front tension bar is the second external thread rod be threaded connection with middle pull bar, front tension bar other end end forms die nut hole.
CN201510526869.4A 2015-08-25 2015-08-25 A kind of outer expanding fixture of bearing ring CN105081386B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201510526869.4A CN105081386B (en) 2015-08-25 2015-08-25 A kind of outer expanding fixture of bearing ring

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201510526869.4A CN105081386B (en) 2015-08-25 2015-08-25 A kind of outer expanding fixture of bearing ring

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CN105081386A true CN105081386A (en) 2015-11-25
CN105081386B CN105081386B (en) 2017-10-13

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105643457A (en) * 2016-03-14 2016-06-08 镇江市丹徒区精华轴承厂 Clamp for grinding of bearing outer ring
CN106180635A (en) * 2016-09-21 2016-12-07 浙江诺达信汽车配件有限公司 The horizontal cold pressing chamber aluminum alloy die-casting die of elastic piston ring structure core
CN106903537A (en) * 2017-04-26 2017-06-30 华北水利水电大学 A kind of overall inlaid type fixture for processing thin-walled ring parts
CN109465657A (en) * 2018-11-23 2019-03-15 东莞市逻威机械设备有限公司 A kind of the four or five axis of numerically-controlled machine tool is automatically outer to support clamping device
CN109465658A (en) * 2018-11-23 2019-03-15 东莞市逻威机械设备有限公司 A kind of the four or five axis automatic inner-support clamping device of numerically-controlled machine tool
CN110385646A (en) * 2019-07-31 2019-10-29 沈阳建筑大学 A kind of pneumatic type inner support clamping device for the processing of ceramic bearing ring interior raceway groove
CN110421484A (en) * 2019-07-31 2019-11-08 沈阳建筑大学 A kind of pneumatic inner support clamping device for processing ceramic bearing ring interior raceway groove

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN202779879U (en) * 2012-07-23 2013-03-13 山东省宇捷轴承制造有限公司 Bearing ring clamp
CN104308211A (en) * 2014-10-11 2015-01-28 蒋飞雪 Double-disc automatic centering sleeve lathe clamp
CN104440330A (en) * 2014-11-18 2015-03-25 常州市立威刀具有限公司 Bearing bush expanding clamp
CN204934661U (en) * 2015-08-25 2016-01-06 浙江天马轴承有限公司 The outer expanding fixture of a kind of bearing ring

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN202779879U (en) * 2012-07-23 2013-03-13 山东省宇捷轴承制造有限公司 Bearing ring clamp
CN104308211A (en) * 2014-10-11 2015-01-28 蒋飞雪 Double-disc automatic centering sleeve lathe clamp
CN104440330A (en) * 2014-11-18 2015-03-25 常州市立威刀具有限公司 Bearing bush expanding clamp
CN204934661U (en) * 2015-08-25 2016-01-06 浙江天马轴承有限公司 The outer expanding fixture of a kind of bearing ring

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105643457A (en) * 2016-03-14 2016-06-08 镇江市丹徒区精华轴承厂 Clamp for grinding of bearing outer ring
CN105643457B (en) * 2016-03-14 2017-11-07 镇江市丹徒区精华轴承厂 A kind of fixture of grinding for bearing outer ring
CN106180635A (en) * 2016-09-21 2016-12-07 浙江诺达信汽车配件有限公司 The horizontal cold pressing chamber aluminum alloy die-casting die of elastic piston ring structure core
CN106903537A (en) * 2017-04-26 2017-06-30 华北水利水电大学 A kind of overall inlaid type fixture for processing thin-walled ring parts
CN109465657A (en) * 2018-11-23 2019-03-15 东莞市逻威机械设备有限公司 A kind of the four or five axis of numerically-controlled machine tool is automatically outer to support clamping device
CN109465658A (en) * 2018-11-23 2019-03-15 东莞市逻威机械设备有限公司 A kind of the four or five axis automatic inner-support clamping device of numerically-controlled machine tool
CN110385646A (en) * 2019-07-31 2019-10-29 沈阳建筑大学 A kind of pneumatic type inner support clamping device for the processing of ceramic bearing ring interior raceway groove
CN110421484A (en) * 2019-07-31 2019-11-08 沈阳建筑大学 A kind of pneumatic inner support clamping device for processing ceramic bearing ring interior raceway groove

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Address after: 313200 Zhejiang city of Huzhou province Deqing County leidian town Canal Road No. 8

Patentee after: Zhejiang Tianma Bearing Group Co., Ltd.

Address before: 313200 Zhejiang city of Huzhou province Deqing County leidian town near the canal Hangzhou Industrial Zone, Road No. 8

Patentee before: ZHEJIANG TIANMA BEARING CO., LTD.