CN2741715Y - Self contering clamp device for digital control cardan joint bell shell inner ball surface grinder - Google Patents

Self contering clamp device for digital control cardan joint bell shell inner ball surface grinder Download PDF

Info

Publication number
CN2741715Y
CN2741715Y CN 200420109331 CN200420109331U CN2741715Y CN 2741715 Y CN2741715 Y CN 2741715Y CN 200420109331 CN200420109331 CN 200420109331 CN 200420109331 U CN200420109331 U CN 200420109331U CN 2741715 Y CN2741715 Y CN 2741715Y
Authority
CN
China
Prior art keywords
cart
collet
pull
spring
main shaft
Prior art date
Application number
CN 200420109331
Other languages
Chinese (zh)
Inventor
龚仲华
唐国兴
史建成
孙毅
顾坚
Original Assignee
常州工业技术学院机电研究所
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 常州工业技术学院机电研究所 filed Critical 常州工业技术学院机电研究所
Priority to CN 200420109331 priority Critical patent/CN2741715Y/en
Application granted granted Critical
Publication of CN2741715Y publication Critical patent/CN2741715Y/en

Links

Abstract

The utility model relates to a self centering clamp device for digital control cardan joint bell shell inner ball surface grinder, comprising a main shaft, a hydraulic unlock mechanism and a clamping mechanism. The fasten mechanism is formed by a draw rod, a draw sleeve, a collet, an outer positioning sleeve, a butterfly-shaped spring, an end-face positioning plate, a center, a tailstock and a spring. The draw rod is arranged in the main shaft, the butterfly-shaped spring is sheathed on the draw rod, and a left retaining ring and a right retaining ring are separately arranged at the both ends of the butterfly-shaped spring. The end-face positioning plate is fixedly connected with the draw sleeve which is connected with the right end of the draw rod through a thread. The draw sleeve is also connected with the collet, and the collet is connected with the outer positioning sleeve through the conical surface. The outer positioning sleeve is fixed on the right end of the main shaft by positioning a positioning pin. The spring and the tailstock are arranged in the draw sleeve. The tailstock is fixedly connected with the draw sleeve, the center is arranged on the tailstock, one end of the spring is butted against the draw sleeve, and the other end of the spring is connected with the center. The utility model can make workpieces clamp conveniently and fast and position accurately, and the abrasive machining of various parts can be completed without changing fixtures.

Description

Numerical control universal joint bell shell Internal Spherical Surface grinding machine self-centering fixture device

Technical field

The utility model relates to a kind of parts of numerically control grinder, specifically, relates to a kind of numerical control universal joint bell shell Internal Spherical Surface grinding machine self-centering fixture device.

Background technology

Existing when the universal joint bell shell is carried out grinding the grip device of holding workpiece have numerous drawbacks.Use scroll chuck as anchor clamps the earliest,, cause that thus the disqualification rate of product is high always, will take a long time during clamping workpiece and adjust, so operating efficiency is extremely low because the tight precision of clamping of scroll chuck is not high; After this, the clamping device that manually compresses with nut appears, the constraint that although need not take a long time the clamping position of adjusting workpiece during clamping work pieces, can't break away from still that manual clamping is consuming time, effort, precision are low, can't realize automation.At present, the producer of part professional production automobile gimbal bell shell produces the special complete equipment of this type of part from external introduction, the anchor clamps of its use are the special-purpose clamping devices by hydraulic clamp, and this anchor clamps clamping is convenient and swift, accurate positioning, be convenient to realize automation., the versatility extreme difference of these anchor clamps just needs to change jig main body in case change other bell shells.This makes a lot of enterprises for realizing the diversity of part processing, and the consumption huge fund has been equipped with the anchor clamps of many covers different size.

Summary of the invention

It is convenient, fast that the purpose of this utility model provides a kind of clamping workpiece that can not only make, accurate positioning, and can under the situation of not changing anchor clamps, finish the numerical control universal joint bell shell Internal Spherical Surface grinding machine self-centering fixture device of the grinding of multiple part.

The technical scheme that realizes above-mentioned purpose is: a kind of numerical control universal joint bell shell Internal Spherical Surface grinding machine self-centering fixture device, comprise main shaft, hydraulic unlock mechanism and clamp mechanism, hydraulic unlock mechanism is made up of the hydraulic jack and the oil cylinder seat of band push rod, oil cylinder seat is positioned at the rear end of main shaft casing, clamp mechanism is by pull bar, help pull a cart, collet, the outside fix cover, butterfly spring, the end face location-plate, top, dead head and spring are formed, the left end of pull bar can contact with push rod, pull bar is positioned at main shaft, butterfly spring is enclosed within on the pull bar, and the two ends of butterfly spring are provided with a left side, right back-up ring, left side back-up ring is located by round nut, the end face location-plate is fixedlyed connected with helping pull a cart, help pull a cart by being threaded in the right-hand member of pull bar, help pull a cart and also be connected with collet, collet is positioned at the outside fix cover, contact by taper seat with the outside fix cover, and locate by alignment pin, the outside fix cover is fixed on the right-hand member of main shaft, spring and dead head are positioned at helps pull a cart, dead head is fixedlyed connected with helping pull a cart, top being installed on the dead head, on an end of spring was against and helps pull a cart, the other end was connected with top.

After adopting technique scheme, workpiece dependence is top, end face location-plate location, is clamped by collet, makes it unified mutually with measuring basis; The outside fix cover contacts with taper seat with collet, when pull bar makes it along taper seat center line clamping work pieces by the tension collet of helping pull a cart, makes the center of workpiece consistent with the center of anchor clamps, has promptly finished the self-centering clamping of workpiece.Realized high speed, the high-precision grinding processing of part by above-mentioned design, the location is convenient, shorten man-hour, improve work efficiency.In addition, the interior hole dimension of collet can be made according to the excircle dimension of bell shell, only changes collet when processing different bell shells and gets final product, and need not to change whole anchor clamps, has not only simplified operation but also reduced cost; For satisfying the processing of different length workpiece, top under the effect of top spring adjustment stroke automatically, thereby satisfied the processing request of different length workpiece, improved the versatility of grip device, can adapt to the processing of multiple bell shell part.Because overlapping mutual match grinding, this device collet and outside fix when clamping work pieces make workpiece centering precision height, little, the convenient mounting and clamping of size dispersion degree; Only need unscrew alignment pin when changing collet, the rotation collet makes its bayonet socket and helps pull a cart disengagement, extracts collet out and gets final product, thereby use very convenient.

Description of drawings

Fig. 1 is a structural representation of the present utility model;

Fig. 2 is the I portion enlarged diagram of Fig. 1.

The specific embodiment

Below in conjunction with drawings and Examples the utility model is described in further detail.

As Fig. 1, shown in 2, a kind of numerical control universal joint bell shell Internal Spherical Surface grinding machine self-centering fixture device, comprise main shaft 7, hydraulic unlock mechanism and clamp mechanism, hydraulic unlock mechanism is made up of the hydraulic jack 1 and the oil cylinder seat 11 of band push rod 2, oil cylinder seat 11 is positioned at the rear end of main shaft casing 8, clamp mechanism is by pull bar 9, help pull a cart 15, collet 17, outside fix cover 19, butterfly spring 5, end face location-plate 20, top 22, dead head 23 and spring 25 are formed, the left end of pull bar 9 can contact with push rod 2, pull bar 9 is positioned at main shaft 7, butterfly spring 5 is enclosed within on the pull bar 9, and the two ends of butterfly spring 5 are provided with a left side, right back-up ring 4,6, left side back-up ring 4 is by round nut 10 location, end face location-plate 20 15 is fixedlyed connected with helping pull a cart, help pull a cart 15 by being threaded in the right-hand member of pull bar 9, help pull a cart and 15 also be connected with collet 17, collet 17 is in outside fix cover 19, contact by taper seat with outside fix cover 19, and by alignment pin 16 location, outside fix cover 19 is fixed on the right-hand member of main shaft 7, earlier flange 14 usefulness screws 13 are fixed on main shaft 7 right-hand members, with screw 21 outside fix cover 19 is fixed on flange 14 outer faces again, spring 25 and dead head 23 are positioned at helps pull a cart 15, dead head 23 15 is fixedlyed connected by feather key 24 with helping pull a cart, top 22 are installed on the dead head 23, one end of spring 25 is against helps pull a cart on 15, and the other end is connected with top 22.

As shown in Figure 1, pull bar 9 is equipped with the ring 12 of posting a letter, and is fixed on by alignment pin 3. on the pull bar 9.By the detection of noncontacting switch to ring 12 positions of posting a letter, the duty of monitoring anchor clamps is given control system with signal feedback, and system makes 2 withdrawals of oil cylinder push rod by the control magnetic valve again or ejects and controls clamping, unclamps.The clamping of this anchor clamps utilizes disk spring 5 to finish, and the safe mode that the unclamping of anchor clamps utilized hydraulic unlock is not only safe and reliable but also fast convenient.

In addition, there is a tooth mouth at every interval for 60 ° on the 15 outer ring circumference of helping pull a cart, and collet 17 inner rings are corresponding also six tooth mouths, help pull a cart 15 and collet 17 by the engagement of tooth mouth.Only need unscrew alignment pin 16 when collet 17 is installed, rotation collet 17 makes its tooth mouth and 15 chuckings of helping pull a cart, and last screwed in place pin 16 gets final product.

Operation principle of the present utility model is as follows:

When hydraulic oil port A injects hydraulic oil, oil cylinder push rod 2 stretches out, the top pull bar 19 to the right, overcome the strain of stacking spring 5, what meanwhile pull bar 9 promoted to be attached thereto helps pull a cart 15, makes collet 17 stretch out outside fix cover 19, workpiece 18 is released, workpiece is under the effect of top spring 25, and dead head 23 and top 22 is also sent workpiece automatically when unclamping workpiece, is convenient to workpiece and takes out.So far, finished the action of unclamping of workpiece.

When hydraulic oil port B oil-feed, oil cylinder push rod 2 is withdrawn thereupon, pull bar 9 15 is held collets 17 by helping pull a cart under the effect of disk spring 5, make collet 17 along in the conical surface retraction outside fix cover 19 of outside fix cover 19, make the center of workpiece 18 consistent, thereby can realize the action of workpiece self-centering clamping with the center of anchor clamps.

Claims (3)

1, a kind of numerical control universal joint bell shell Internal Spherical Surface grinding machine self-centering fixture device, comprise main shaft (7), hydraulic unlock mechanism and clamp mechanism, hydraulic unlock mechanism is made up of the hydraulic jack (1) and the oil cylinder seat (11) of band push rod (2), oil cylinder seat (11) is positioned at the rear end of main shaft casing (8), it is characterized in that: clamp mechanism is by pull bar (9), help pull a cart (15), collet (17), outside fix cover (19), butterfly spring (5), end face location-plate (20), top (22), dead head (23) and spring (25) are formed, the left end of pull bar (9) can contact with push rod (2), pull bar (9) is positioned at main shaft (7), butterfly spring (5) is enclosed within on the pull bar (9), and the two ends of butterfly spring (5) are provided with a left side, right back-up ring (4,6), left side back-up ring (4) is by round nut (10) location, end face location-plate (20) is fixedlyed connected with help pull a cart (15), help pull a cart (15) by being threaded in the right-hand member of pull bar (9), help pull a cart (15) also be connected with collet (17), collet (17) is positioned at outside fix cover (19), contact by taper seat with outside fix cover (19), and by alignment pin (16) location, outside fix cover (19) is fixed on the right-hand member of main shaft (7), spring (25) and dead head (23) are positioned at help pull a cart (15), dead head (23) is fixedlyed connected with help pull a cart (15), top (22) are installed on the dead head (23), one end of spring (25) is against on help pull a cart (15), and the other end is connected with top (22).
2, numerical control universal joint bell shell Internal Spherical Surface grinding machine self-centering fixture device according to claim 1, it is characterized in that: pull bar (9) is equipped with the ring (12) of posting a letter.
3, numerical control universal joint bell shell Internal Spherical Surface grinding machine self-centering fixture device according to claim 1 and 2, it is characterized in that: there is a tooth mouth at every interval for 60 ° on (15) outer ring circumference of helping pull a cart, collet (17) inner ring is corresponding also six tooth mouths, and help pull a cart (15) and collet (17) are by the engagement of tooth mouth.
CN 200420109331 2004-12-02 2004-12-02 Self contering clamp device for digital control cardan joint bell shell inner ball surface grinder CN2741715Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 200420109331 CN2741715Y (en) 2004-12-02 2004-12-02 Self contering clamp device for digital control cardan joint bell shell inner ball surface grinder

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 200420109331 CN2741715Y (en) 2004-12-02 2004-12-02 Self contering clamp device for digital control cardan joint bell shell inner ball surface grinder

Publications (1)

Publication Number Publication Date
CN2741715Y true CN2741715Y (en) 2005-11-23

Family

ID=35477189

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 200420109331 CN2741715Y (en) 2004-12-02 2004-12-02 Self contering clamp device for digital control cardan joint bell shell inner ball surface grinder

Country Status (1)

Country Link
CN (1) CN2741715Y (en)

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102059569A (en) * 2010-10-29 2011-05-18 无锡迪奥机械有限公司 Clamping chuck for automatic lathe
CN102059559A (en) * 2010-12-30 2011-05-18 晋江市威坦机械开发有限公司 Vertical rotary workbench of numerical control machine tool
CN102240945A (en) * 2011-07-06 2011-11-16 中国兵器工业第二○五研究所 Pneumatic polishing reshaping device for spherical surface
CN102672498A (en) * 2012-06-06 2012-09-19 无锡新宏泰电器科技股份有限公司 Self-centering fixture for thin-walled parts
CN102765003A (en) * 2012-07-25 2012-11-07 无锡机床股份有限公司 Clamping structure for shaft parts
CN102889870A (en) * 2012-10-22 2013-01-23 无锡市迈日机器制造有限公司 Positioning and centering mechanism
CN103737350A (en) * 2013-12-12 2014-04-23 中联重科股份有限公司 Clamp for turning universal joint
CN104191298A (en) * 2014-09-11 2014-12-10 无锡瑞真精密机械有限公司 Double-end-floating self-centering clamp
CN104259987A (en) * 2014-09-12 2015-01-07 濮阳贝英数控机械设备有限公司 Elastic clamp device and clamping method
CN108044505A (en) * 2017-12-15 2018-05-18 东风汽车集团有限公司 A kind of high-precision grinder duplex tensioner makes concentric mechanism fixture and its grinding machine by oneself
CN108296987A (en) * 2018-02-01 2018-07-20 扬州大学 A kind of clutch can self-centering clamping and pop-up fixture and its application method
CN109332734A (en) * 2018-11-20 2019-02-15 宁夏贺兰县机床附件厂 A kind of end face hydraulic automatic driver plate with the utilization rate for improving material
CN111002079A (en) * 2019-11-22 2020-04-14 莱芜汇金金属制品股份有限公司 High-precision double-layer self-centering clamping fixture and clamping method
CN111468964A (en) * 2020-04-22 2020-07-31 南京佳和牙科技术有限公司 Quick clamping and rotating mechanism of numerical control machine tool

Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102059569A (en) * 2010-10-29 2011-05-18 无锡迪奥机械有限公司 Clamping chuck for automatic lathe
CN102059559A (en) * 2010-12-30 2011-05-18 晋江市威坦机械开发有限公司 Vertical rotary workbench of numerical control machine tool
CN102240945B (en) * 2011-07-06 2013-07-03 中国兵器工业第二0五研究所 Pneumatic polishing reshaping device for spherical surface
CN102240945A (en) * 2011-07-06 2011-11-16 中国兵器工业第二○五研究所 Pneumatic polishing reshaping device for spherical surface
CN102672498A (en) * 2012-06-06 2012-09-19 无锡新宏泰电器科技股份有限公司 Self-centering fixture for thin-walled parts
CN102765003A (en) * 2012-07-25 2012-11-07 无锡机床股份有限公司 Clamping structure for shaft parts
CN102889870A (en) * 2012-10-22 2013-01-23 无锡市迈日机器制造有限公司 Positioning and centering mechanism
CN103737350B (en) * 2013-12-12 2016-01-13 中联重科股份有限公司 For the fixture of turning cross axle
CN103737350A (en) * 2013-12-12 2014-04-23 中联重科股份有限公司 Clamp for turning universal joint
CN104191298A (en) * 2014-09-11 2014-12-10 无锡瑞真精密机械有限公司 Double-end-floating self-centering clamp
CN104259987A (en) * 2014-09-12 2015-01-07 濮阳贝英数控机械设备有限公司 Elastic clamp device and clamping method
CN108044505A (en) * 2017-12-15 2018-05-18 东风汽车集团有限公司 A kind of high-precision grinder duplex tensioner makes concentric mechanism fixture and its grinding machine by oneself
CN108044505B (en) * 2017-12-15 2019-09-24 东风汽车集团有限公司 A kind of high-precision grinder duplex tensioner makes concentric mechanism fixture and its grinding machine by oneself
CN108296987A (en) * 2018-02-01 2018-07-20 扬州大学 A kind of clutch can self-centering clamping and pop-up fixture and its application method
CN109332734A (en) * 2018-11-20 2019-02-15 宁夏贺兰县机床附件厂 A kind of end face hydraulic automatic driver plate with the utilization rate for improving material
CN111002079A (en) * 2019-11-22 2020-04-14 莱芜汇金金属制品股份有限公司 High-precision double-layer self-centering clamping fixture and clamping method
CN111002079B (en) * 2019-11-22 2020-08-18 莱芜汇金金属制品股份有限公司 High-precision double-layer self-centering clamping fixture and clamping method
CN111468964A (en) * 2020-04-22 2020-07-31 南京佳和牙科技术有限公司 Quick clamping and rotating mechanism of numerical control machine tool

Similar Documents

Publication Publication Date Title
CN2829948Y (en) Automatic chucking device of lathe chuck
CN201313260Y (en) Fixture used for drilling holes on small end of connecting rod
CN204953942U (en) Fixture device and processing equipment
CN203253956U (en) Manual four-jaw chuck with precise scales
CN201632857U (en) Elastic inner clamp of machine tool
CN201208704Y (en) Clamper for lathe
CN200954555Y (en) Elastic internal supporting dabber
CN201244744Y (en) Automatic locking apparatus for lathe fixture
CN201960377U (en) Hydraulic clamp for finish machining of motor housing
CN101733655B (en) Technique and device for processing shaft type and pipe type workpieces in tightened state
CN105397636B (en) A kind of thin wall cylinder class workpiece internal grinding radial positioning unit and mount device
CN202861853U (en) Radial drilling jig
CN204700333U (en) A kind of quick position chuck clamping irregular part
CN104924137B (en) Clamp assembly and processing method for thin-walled Ring-cylindrical Finishing Parts Machining
CN102765002B (en) Automatic centering fixture for workpiece with revolution boss and/or hole
CN201168887Y (en) Rotating localization jigs
CN102581672A (en) Fixture of hub lathe
CN201931091U (en) Machine tool spindle box capable of clamping bidirectionally
CN202097409U (en) No-stop self-centering clamping chunk used for processing slender shaft part
CN103737048A (en) Clamp special for thin wall cylinder excircle turning
CN104589161A (en) Device for grinding lead screw precisely
CN104907868B (en) A kind of turnery processing motor casing hydraulic pressure automatic fixture
CN201645223U (en) Diplopore metalloid part lathe fixture
CN201760769U (en) Multidirectional eccentric wheel machining fixture
CN104097089B (en) Rotary table hydraulic clamp

Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
C19 Lapse of patent right due to non-payment of the annual fee
CF01 Termination of patent right due to non-payment of annual fee