CN203471399U - Adjustable positioning mechanism - Google Patents
Adjustable positioning mechanism Download PDFInfo
- Publication number
- CN203471399U CN203471399U CN201320532534.XU CN201320532534U CN203471399U CN 203471399 U CN203471399 U CN 203471399U CN 201320532534 U CN201320532534 U CN 201320532534U CN 203471399 U CN203471399 U CN 203471399U
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- pin
- matrix
- positioning
- loose pin
- fixed
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Abstract
The utility model discloses an adjustable positioning mechanism. The adjustable positioning mechanism is characterized in that a positioning base, a spring, a movable positioning pin and a replaceable positioning pin are sequentially mounted in mounting holes in a base body of the adjustable positioning mechanism, the positioning base is fixed onto the base body, the spring is arranged on a center spring seat of the positioning base, a groove in the lower end of the movable positioning pin is sleeved on the outside of the spring, and the replaceable positioning pin is detachably fixed into an inner hole of the movable positioning pin; an outer circle on the upper portion of the replaceable positioning pin is matched with a positioning hole of a workpiece; a rack is arranged on a side wall of one end of the movable positioning pin, and a gear mounted in a gear hole of the base body is meshed with the rack; a knob plunger and a jackscrew are respectively fixed to two opposite ends of the base body; when the movable positioning pin is positioned at the lowermost end, the front end of the knob plunger is positioned in an upper counter-bored hole, and the jackscrew is butted to the uppermost end of a limiting groove; when the movable positioning pin is positioned at the uppermost end, the front end of the knob plunger is positioned in a lower counter-bored hole, and the jackscrew is butted to the lowermost end of the limiting groove. The adjustable positioning mechanism has the advantages that the workpiece can be quickly, accurately and easily mounted and positioned by the detachable positioning mechanism, and the adjustable positioning mechanism is high in accuracy and reliability; accidents of collision of the positioning pins or damage to the positioning pins in workpiece assembling and disassembling procedures can be prevented.
Description
Technical field
The utility model relate to a kind of on lathe the parts of the built-up jig of machining large engine cylinder-body, cylinder cap class part.
Background technology
Large-scale gray iron class part is because appearance and size is large, and quality is large, and the normal built-up jig being bolted together that adopts of trial-production processing of its new product is fixed on machine tool.The normal fixed alignment pin location that adopts of this built-up jig, when workpiece is installed on built-up jig, fixed alignment pin localization part is difficult for inserting in workpiece locating hole, and location difficulty is installed, and in position fixing process is installed, be easy to the alignment pin that collides with, cause alignment pin damage or alignment pin position to move; Cause alignment pin positioning precision to reduce, even lose, What is more causes alignment pin damage not locate, and must change.
Summary of the invention
The purpose of this utility model solves the above-mentioned problems in the prior art exactly, provides a kind of and installs that positioning workpieces is simple, the degree of accuracy is high, the adjustable positioning mechanism of good reliability, non-easy damaged alignment pin.
For achieving the above object, technical solution of the present utility model is: a kind of adjustable positioning mechanism, and it comprises matrix, loose pin, replaceable locating pin, gear and position-limit mechanism; On matrix, have installing hole, in hole, be provided with successively: be fixed on positioning base on matrix, be placed in the spring on positioning base centering spring seat, the groove of lower end is enclosed within the loose pin outside spring and is removably fixed on the replaceable locating pin in loose pin endoporus; Loose pin is slidably mounted in the installing hole of matrix; The installation of replaceable locating pin, loose pin and positioning base guarantees with one heart; The locating hole of replaceable locating pin top cylindrical and workpiece matches, there is the gear projection of loose pin at middle part, all to be positioned at the part of loose pin endoporus concentric with replaceable locating pin for this top cylindrical and gear projection, between this gear projection and matrix, dust ring is installed; On the sidewall of loose pin one end, have tooth bar, the wheel and rack being arranged in matrix gear hole is meshed; The gear shaft of gear is rotatably installed on matrix outer wall; Position-limit mechanism comprises knob plunger and jackscrew; One end, two ends relative on matrix is fixed with knob plunger, and the other end is fixed with the jackscrew relative with knob plunger; Loose pin has the upper and lower counterbore of knob plunger and the Long Circle stopper slot of jackscrew at relative two ends; When loose pin is positioned at lowest positions, knob plunger front end is positioned at counterbore, and jackscrew withstands on the top of stopper slot; When loose pin is positioned at position, the top, knob plunger front end is positioned at lower counterbore, and jackscrew withstands on stopper slot bottom.
The structure that described replaceable locating pin is removably fixed in loose pin endoporus is: external screw thread is arranged at the bottom, position that is positioned at the replaceable locating pin of loose pin endoporus, upper smooth, internal thread is arranged at loose pin inwall bottom corresponding thereto, and top is the unthreaded hole coordinating with the microgap, smooth position of replaceable locating pin; Replaceable locating pin lower thread is fixed on loose pin inwall, top and loose pin microgap concentric fits.
The structure that described loose pin is slidably mounted in the installing hole of matrix is: loose pin is arranged in the installing hole of matrix by the lining being fixed on matrix installing hole inwall; Lining is concentric with positioning base.
The described positioning base being fixed on matrix is positioning sleeve, on positioning sleeve inner end, has spring base, and positioning sleeve interference is assemblied on matrix, and is fixed by screw; The endoporus of positioning sleeve is concentric with lining, thereby guarantees that replaceable locating pin is concentric with lower end positioning sleeve endoporus.
During use, matrix of the present utility model is arranged on other positioning component of built-up jig, on other positioning component of existing dowel-pin modular fixture.Its loose pin moves up and down it by the transmission of gear, tooth bar, thereby drives replaceable locating pin to move up and down; While not using, loose pin is positioned at lowest order, and replaceable locating pin upper surface is lower than plane on matrix, after workpiece is in place, extract knob plunger, rotary teeth wheel shaft, makes to move on loose pin, after putting in place in replaceable locating pin top cylindrical insertion workpiece locating hole, knob plunger automatic rebounding, its front end inserts lower counterbore, and jackscrew withstands on stopper slot bottom, and loose pin is spacing by knob plunger and jackscrew.After workpiece machines, extract knob plunger, reverse rotation gear shaft, loose pin is moved down, and replaceable locating pin top cylindrical exits workpiece locating hole, after putting in place, knob plunger automatic rebounding, its front end inserts upper counterbore, and jackscrew withstands on the top of stopper slot, and loose pin is spacing by knob plunger and jackscrew.The utility model can be installed location by workpiece quickly and accurately, and its positioning workpieces is simple, the degree of accuracy is high, good reliability; The alignment pin of having avoided causing in work-handling process collides with or damages the generation of alignment pin event.
Accompanying drawing explanation
Fig. 1 is top view of the present utility model;
Fig. 2 is the AA cutaway view of Fig. 1;
Fig. 3 is the BB cutaway view of Fig. 1.
The specific embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is further described.
As shown in Figure 1, Figure 2 and Figure 3, the present embodiment comprises matrix 1, loose pin 6, replaceable locating pin 5, gear 3 and position-limit mechanism.On matrix 1, have installing hole, in hole, be provided with successively: be fixed on positioning sleeve 10 on matrix 1, be placed in the spring 8 on positioning sleeve 10 centering spring seats 9, the groove of lower end is enclosed within loose pin 6 and the replaceable locating pin 5 outside spring 8.External screw thread is arranged at the bottom, position that is positioned at the replaceable locating pin 5 of loose pin 6 endoporus, upper smooth, and internal thread is arranged at loose pin 6 inwall bottoms corresponding thereto, and top is the unthreaded hole coordinating with the microgap, smooth position of replaceable locating pin 5.Replaceable locating pin 5 lower thread are fixed on loose pin 6 inwalls, top and loose pin 6 microgap concentric fits.Loose pin 6 is arranged in the installing hole of matrix 1 by the lining 7 being fixed on matrix installing hole inwall.Loose pin 6 and lining 7 concentric fits.On positioning sleeve 10 inner ends, have spring base 9, positioning sleeve 10 interference are assemblied on matrix 1, and are fixed by screw 19.The endoporus 11 of positioning sleeve 10 is concentric with lining 7.The locating hole of replaceable locating pin 5 top cylindricals and workpiece matches, there is the gear projection 13 of loose pin 6 at middle part, all to be positioned at the part of loose pin 6 endoporus concentric with replaceable locating pin 5 for this top cylindrical and gear projection 13, between this gear projection 13 and matrix 1, dust ring 12 is installed.Gear projection 13 and dust ring 12 are all lower than matrix 1 upper surface.On loose pin 6 one end sidewalls, have tooth bar 4, the gear 3 being arranged in matrix gear hole is meshed with tooth bar 4.Gear shaft 2 one end of gear 3 are rotatably connected on matrix 1 wall, and the other end is stamped door, and gear shaft 2 can be along the rotation of door endoporus, and door is fixed in base wall by screw.Position-limit mechanism comprises knob plunger 14 and jackscrew 15.One end, two ends relative on matrix 1 is fixed with knob plunger 14, and the other end is fixed with the jackscrew 15 relative with knob plunger 14.Loose pin 6 has the upper and lower counterbore 16,17 of knob plunger 14 and the Long Circle stopper slot 18 of jackscrew 15 at relative two ends.When loose pin 6 is positioned at lowest positions, knob plunger 14 front ends are positioned at counterbore 16, and jackscrew 15 withstands on the top of stopper slot 18; When loose pin 6 is positioned at position, the top, knob plunger 14 front ends are positioned at lower counterbore 17, and jackscrew 15 withstands on stopper slot 18 bottom.
Claims (5)
1. an adjustable positioning mechanism, is characterized in that: it comprises matrix, loose pin, replaceable locating pin, gear and position-limit mechanism; On matrix, have installing hole, in hole, be provided with successively: be fixed on positioning base on matrix, be placed in the spring on positioning base centering spring seat, the groove of lower end is enclosed within the loose pin outside spring and is removably fixed on the replaceable locating pin in loose pin endoporus; Loose pin is slidably mounted in the installing hole of matrix; The installation of replaceable locating pin, loose pin and positioning base guarantees with one heart; The locating hole of replaceable locating pin top cylindrical and workpiece matches, there is the gear projection of loose pin at middle part, all to be positioned at the part of loose pin endoporus concentric with replaceable locating pin for this top cylindrical and gear projection, between this gear projection and matrix, dust ring is installed; On the sidewall of loose pin one end, have tooth bar, the wheel and rack being arranged in matrix gear hole is meshed; The gear shaft of gear is rotatably installed on matrix outer wall; Position-limit mechanism comprises knob plunger and jackscrew; One end, two ends relative on matrix is fixed with knob plunger, and the other end is fixed with the jackscrew relative with knob plunger; Loose pin has the upper and lower counterbore of knob plunger and the Long Circle stopper slot of jackscrew at relative two ends; When loose pin is positioned at lowest positions, knob plunger front end is positioned at counterbore, and jackscrew withstands on the top of stopper slot; When loose pin is positioned at position, the top, knob plunger front end is positioned at lower counterbore, and jackscrew withstands on stopper slot bottom.
2. adjustable positioning mechanism according to claim 1, it is characterized in that: the structure that described replaceable locating pin is removably fixed in loose pin endoporus is: external screw thread is arranged at the bottom, position that is positioned at the replaceable locating pin of loose pin endoporus, upper smooth, internal thread is arranged at loose pin inwall bottom corresponding thereto, and top is the unthreaded hole coordinating with the microgap, smooth position of replaceable locating pin; Replaceable locating pin lower thread is fixed on loose pin inwall, top and loose pin microgap concentric fits.
3. adjustable positioning mechanism according to claim 1 and 2, is characterized in that: the structure that described loose pin is slidably mounted in the installing hole of matrix is: loose pin is arranged in the installing hole of matrix by the lining being fixed on matrix installing hole inwall; Lining is concentric with positioning base.
4. adjustable positioning mechanism according to claim 3, is characterized in that: the described positioning base being fixed on matrix is positioning sleeve, on positioning sleeve inner end, has spring base, and positioning sleeve interference is assemblied on matrix, and the endoporus of positioning sleeve is concentric with lining.
5. adjustable positioning mechanism according to claim 1 and 2, is characterized in that: the described positioning base being fixed on matrix is positioning sleeve, on positioning sleeve inner end, has spring base, and positioning sleeve interference is assemblied on matrix, and is fixed by screw; The endoporus of positioning sleeve is concentric with lining.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320532534.XU CN203471399U (en) | 2013-08-29 | 2013-08-29 | Adjustable positioning mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320532534.XU CN203471399U (en) | 2013-08-29 | 2013-08-29 | Adjustable positioning mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203471399U true CN203471399U (en) | 2014-03-12 |
Family
ID=50219807
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320532534.XU Expired - Lifetime CN203471399U (en) | 2013-08-29 | 2013-08-29 | Adjustable positioning mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203471399U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104385030A (en) * | 2014-10-20 | 2015-03-04 | 芜湖市泰能电热器具有限公司 | Positioning device for casing milling clamp |
| CN105328685A (en) * | 2015-12-05 | 2016-02-17 | 重庆创隆实业有限公司 | Fast-locking type bumper bar placing rack |
| CN108843526A (en) * | 2018-06-26 | 2018-11-20 | 边会婷 | A kind of energy collecting device of fitness equipment |
| CN110206803A (en) * | 2019-05-30 | 2019-09-06 | 西安法士特汽车传动有限公司 | A kind of floating positioning pin and localization method |
| CN113458826A (en) * | 2021-07-26 | 2021-10-01 | 常州机电职业技术学院 | Slotting machine fixture for slotting key groove of inner hole of automobile part bent arm |
-
2013
- 2013-08-29 CN CN201320532534.XU patent/CN203471399U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104385030A (en) * | 2014-10-20 | 2015-03-04 | 芜湖市泰能电热器具有限公司 | Positioning device for casing milling clamp |
| CN105328685A (en) * | 2015-12-05 | 2016-02-17 | 重庆创隆实业有限公司 | Fast-locking type bumper bar placing rack |
| CN105328685B (en) * | 2015-12-05 | 2017-10-10 | 重庆创隆实业有限公司 | Quick lock crash bar rack |
| CN108843526A (en) * | 2018-06-26 | 2018-11-20 | 边会婷 | A kind of energy collecting device of fitness equipment |
| CN110206803A (en) * | 2019-05-30 | 2019-09-06 | 西安法士特汽车传动有限公司 | A kind of floating positioning pin and localization method |
| CN113458826A (en) * | 2021-07-26 | 2021-10-01 | 常州机电职业技术学院 | Slotting machine fixture for slotting key groove of inner hole of automobile part bent arm |
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140312 |
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| CX01 | Expiry of patent term |