CN109202422B - Positioning pin press-fitting device - Google Patents
Positioning pin press-fitting device Download PDFInfo
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- CN109202422B CN109202422B CN201811452284.2A CN201811452284A CN109202422B CN 109202422 B CN109202422 B CN 109202422B CN 201811452284 A CN201811452284 A CN 201811452284A CN 109202422 B CN109202422 B CN 109202422B
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- press
- fitting
- depth adjusting
- guide sleeve
- sleeve
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P19/00—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes
- B23P19/02—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes for connecting objects by press fit or for detaching same
- B23P19/027—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes for connecting objects by press fit or for detaching same using hydraulic or pneumatic means
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- Engineering & Computer Science (AREA)
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Abstract
A positioning pin press-fitting device comprises a workbench, a press-fitting mechanism and an annular rail. Three working tables capable of rotating along the annular track are uniformly distributed on the annular track, and any one working table rotates to the first position, the second position and the third position in sequence during working. The press-fitting mechanism is arranged above the third position and comprises a press-fitting shaft, a fixed sleeve, a limiting block, a press-fitting disc and a pressure head; the press-fitting mechanism is characterized in that a press-fitting shaft is arranged on the press-fitting disc, the press-fitting shaft is in clearance fit with the fixed sleeve, a plurality of depth adjusting holes are radially formed in the fixed sleeve and distributed at different axial positions, a depth adjusting groove is formed in the press-fitting shaft, the upper end of a notch of the depth adjusting groove is higher than the highest depth adjusting hole in the non-press-fitting state of the press-fitting mechanism, and a limiting block is arranged in one depth adjusting hole and extends into the depth adjusting groove; the lower end of the press-fitting disc is connected with press heads corresponding to the number and the positions of the press-fitted positioning pins. The device has the advantages of easy workpiece feeding and pressing, simple structure, adjustable pressing depth and capability of simultaneously ensuring the pressing quality of the positioning pin.
Description
Technical Field
The invention relates to equipment, in particular to a positioning pin press-fitting device.
Background
Three pressure plate positioning pins are required to be installed on a flywheel of an automobile engine for accurately fixing the clutch, the clutch is required to be quickly and accurately pressed in the pressing process, and the exposed height of the positioning pins after pressing has precision requirements. The existing pressure plate positioning pin generally adopts manual feeding, and the workbench adopts a vertical staggered type workpiece supplying, pressing and taking mode, so that the equipment has large occupied space and position and complex equipment structure. The existing mounting mode of the pressure plate positioning pin is generally as follows: and manually knocking a positioning pin or pressing by a single pressing head. The positioning pin is easy to incline and the exposed height precision of the positioning pin is difficult to guarantee by manually knocking the positioning pin, the labor intensity is high, the single-pressure-head press-mounting efficiency is low, and the problems that the press-mounting height is fixed, the exposed height consistency of the positioning pin is difficult to guarantee and the like are solved.
Disclosure of Invention
The invention aims to provide a positioning pin press-fitting device which is easy to press and take workpieces, simple in structure, low in labor intensity, high in working efficiency, adjustable in press-fitting depth and capable of ensuring the press-fitting quality of positioning pins.
In order to achieve the purpose, the technical scheme adopted by the invention for solving the problem is as follows:
a positioning pin press-mounting device comprises a workbench, a press-mounting mechanism and an annular rail, wherein three workbenches capable of rotating along the rail are uniformly distributed on the annular rail, a tappet for positioning a workpiece is arranged on the workbench, a tappet for positioning the workpiece is arranged on the workbench, and in a working state, any workbench rotates through a first position in sequence to take and place the workpiece, a second position placing positioning pin and a third position press-mounting positioning pin; the press-fitting mechanism is arranged above the third position and comprises a press-fitting shaft, a fixed sleeve, a limiting block, a press-fitting disc and a pressure head; the center of the upper end of the press-fitting disc is connected with a press-fitting shaft, the press-fitting shaft is in clearance fit with the fixed sleeve, the fixed sleeve is radially provided with a plurality of depth adjusting holes, the depth adjusting holes are distributed at different axial positions of the fixed sleeve, the side wall of the press-fitting shaft is provided with a depth adjusting groove, the upper end of the notch of the depth adjusting groove is higher than the highest depth adjusting hole in the non-press-fitting state of the press-fitting mechanism, and a limiting block is arranged in one depth adjusting hole and extends into the depth adjusting groove; and the lower end of the press-fitting disc is connected with press heads corresponding to the number and the positions of the press-fitted positioning pins.
Compared with the prior art, the invention has the beneficial effects that:
1. the three working tables run on the annular rail and respectively pass through three positions of taking and placing the workpiece, placing the positioning pin and pressing the positioning pin, so that the working efficiency is high, and the labor intensity is low.
2. The unique structural design of the press-fitting mechanism can select the limiting blocks with different axial depths, so that the press-fitting depth can be changed.
3. Be equipped with a plurality of pressure heads on the pressure disk, a plurality of locating pins of pressure equipment simultaneously, the locating pin atress is even, exposes highly uniform height, can guarantee the pressure equipment quality.
4. Lubricating oil is filled in the cavities of the pressure lever and the guide sleeve, so that the parts are slowly worn and have long service life.
The invention can be used for installing the clutch pressure plate positioning pin in the automobile engine, and obviously improves the assembly efficiency of the engine.
Drawings
FIG. 1 is a schematic structural view of a locating pin press-fitting device of the present invention;
FIG. 2 is a schematic structural view of the press-fitting mechanism;
FIG. 3 is a sectional view A-A of FIG. 2;
FIG. 4 is a cross-sectional view of the ram;
in the figure, 1-an annular track, 2-a workbench, 3-a tappet, 4-a press-fitting mechanism, 5-a depth adjusting hole, 6-a press-fitting shaft, 7-a fixed sleeve, 8-a limiting block, 9-a depth adjusting groove, 10-a press-fitting pressure plate, 11-a pin hole, 12-a pressure head, 13-a flywheel, 14-a pressure rod, 15-a connecting pin, 16-a guide sleeve, 17-a reset spring, 18-a protective sleeve, 19-a magnet, 20-an anti-falling jackscrew and 21-a pressure plate positioning pin.
Detailed Description
The structure of the invention is further explained by taking the press mounting of the pressure plate positioning pin of the engine flywheel as an example and combining the accompanying drawings as follows:
referring to fig. 1, three work tables 2 are arranged on the circumference of the circular track 1 at equal angles, the work tables 2 rotate along with the circular track 1, the work pieces are respectively taken and placed when the work pieces are respectively rotated to a first position, a positioning pin is respectively placed when the work pieces are taken and placed when the work pieces are placed at a second position, and a positioning pin is respectively placed when the work pieces are placed at a third position, namely a press-fitting position.
The press-fitting mechanism 4 is arranged above a press-fitting position, referring to fig. 2-3, a press-fitting shaft 6 on the press-fitting mechanism 4 is in clearance fit with a fixed sleeve 7, the lower end of the press-fitting shaft 6 is connected with a press-fitting disc 10 through threads, three depth adjusting holes 5 are radially formed in the fixed sleeve 7, the axial heights of the three holes are different, a depth adjusting groove 9 is correspondingly formed in the side wall of the press-fitting shaft 6, the upper end of the notch of the depth adjusting groove 9 is higher than the depth adjusting hole 5 with the highest position in a non-press-fitting state of the press-fitting mechanism 4, and a limiting block 8 is selectively arranged in one depth adjusting hole 5 and extends into the depth adjusting groove 9 according to the press-fitting depth requirement, so that the. The lower end of the press-fitting disc 10 is respectively connected with the upper ends of the pressing rods 14 of the three pressing heads 12 through three threaded holes on the circumference. The bottom of the pressure head 12 is provided with a pressure plate positioning pin 21 to be pressed, the pressure plate positioning pin 21 is over against a flywheel pin hole, two holes on the flywheel 13 are in clearance fit with the two tappets 3 on the workbench 2, and the bottom surface of the flywheel 13 is attached to the upper end surface of the workbench 2.
Referring to fig. 4, the pressure head 12 includes a pressure lever 14, a connecting pin 15, a guide sleeve 16, a return spring 17, a protective sleeve 18 and a magnet 19, the upper end of the pressure lever 14 is connected to the press-fitting disc 10, the pressure lever 14 is in clearance fit with the guide sleeve 16, an annular space is left between the pressure lever 14 and the guide sleeve 16 near the lower end, the return spring 17 is installed, and the bottom of the return spring 17 is installed on a boss inside the guide sleeve 16.
The pressure lever 14 and the guide sleeve 16 are connected through a connecting mechanism and are in clearance fit, and lubricating oil is arranged in a cavity between the pressure lever and the guide sleeve.
The connecting structure is that a concave groove is formed on a pressure lever 14, a pin hole 11 is formed in the circumference of a guide sleeve 16 at the position of the concave groove, the pressure lever 14 and the guide sleeve 16 are connected into a whole through a connecting pin 15, the concave groove is provided with a space for the connecting pin to slide up and down, and the connecting pin 15 can slide up and down at the position of the concave groove.
A ring of annular grooves are reserved between the lower port part of the guide sleeve 16 and the pressure rod 14, and magnets 19 are arranged in the annular grooves. The guide sleeve 16 is provided with a protective sleeve 18 on the outer circumference of the lower end, the lower end of the protective sleeve is provided with a hole, and the lower end of the magnet 19 is abutted against the upper end face of the hole opening.
The circumference of the protective sleeve 18 is provided with a hole, an anti-falling jackscrew 20 is arranged in the hole, the protective sleeve 18 is connected with the guide sleeve 16 through the anti-falling jackscrew 20, and the annular space between the protective sleeve 18 and the magnet 19 is used for adsorbing a pressure plate positioning pin 21.
The working mode of the device is as follows:
when a workpiece is taken and placed, the flywheel 13 is placed on the workbench 2 on the circular track 1 and is positioned by the tappet 3, the workbench 2 rotates along the circular track 1, when the positioning pin is placed, the automatic feeding mechanism places three pressure plate positioning pins 21 at pin holes of the flywheel 13, the workbench 2 continues to rotate to the press-fitting mechanism 4 along the circular track 1, the magnet 19 at the lower end of the press head 12 adsorbs the pressure plate positioning pins 21, the press-fitting shaft 6 descends under the push of the cylinder, the press-fitting shaft 6 drives the press-fitting disc 10 and the pressure rod 14 in the press head 12 to move downwards, when the press-fitting shaft 6 descends to contact the limiting block 8 on the fixed sleeve 7, the press-fitting shaft 6 stops moving downwards, and the pressure plate positioning pins 21 are pressed into the pin holes of the flywheel 13 by the bottom of the pressure rod 14 at the. Because the compression rod 14 moves downwards to compress the return spring 17, after press fitting is finished, the air cylinder moves upwards, and the return spring 17 provides spring restoring force to push the compression rod 14 to move upwards.
After the press fitting is completed, the annular rail 1 drives the pressed workpiece to rotate to the position for taking and placing the workpiece, the workpiece is taken down, and another flywheel 13 is placed on the workbench 2 on the annular rail 1, so that the press fitting operation of the pressure plate positioning pin 21 is completed in a circulating manner.
The limiting blocks 8 with different axial depths are selected, and the pressure plate positioning pin 21 can be pressed to different depths.
In the device, the rotation of the worktable 2 is realized by other power mechanisms, and whether the worktable rotates in place is sensed by designing sensing mechanisms near each working position, and the sensing mechanisms are all the prior art means.
The above description is only exemplary of the present invention and should not be taken as limiting, and any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (4)
1. A positioning pin press-fitting device comprises a workbench and a press-fitting mechanism; the device is characterized by further comprising an annular track, wherein three working tables capable of rotating along the annular track are uniformly distributed on the annular track, a tappet for positioning a workpiece is arranged on each working table, and in a working state, any one working table sequentially rotates through a first position to pick and place the workpiece, a second position positioning pin and a third position press-mounting positioning pin; the press-fitting mechanism is arranged above the third position and comprises a press-fitting shaft, a fixed sleeve, a limiting block, a press-fitting disc and a pressure head; the center of the upper end of the press-fitting disc is connected with a press-fitting shaft, the press-fitting shaft is in clearance fit with the fixed sleeve, the fixed sleeve is radially provided with a plurality of depth adjusting holes, the depth adjusting holes are distributed at different axial positions of the fixed sleeve, the side wall of the press-fitting shaft is provided with a depth adjusting groove, the upper end of the notch of the depth adjusting groove is higher than the highest depth adjusting hole in the non-press-fitting state of the press-fitting mechanism, and a limiting block is arranged in one depth adjusting hole and extends into the depth adjusting groove; the lower end of the press-fitting disc is connected with press heads corresponding to the number and positions of the press-fitted positioning pins;
the pressure head comprises a pressure rod, a guide sleeve, a reset spring and a magnet, the upper end of the pressure rod is connected with a press-fitting disc, the pressure rod is in clearance fit with the guide sleeve, an annular space is reserved between the pressure rod and the guide sleeve at a position close to the lower end of the pressure rod, the reset spring is installed, a circle of annular groove is reserved between the guide sleeve and the pressure rod at the lower end opening, and the magnet is arranged in the;
a protecting sleeve is arranged on the outer circumference of the lower end of the guide sleeve, the lower end of the protecting sleeve is provided with a hole, and the lower end of the magnet is abutted against the upper end face of the hole;
the protective sleeve is characterized in that a hole is formed in the circumference of the protective sleeve, an anti-falling jackscrew is installed in the hole, and the protective sleeve is connected with the guide sleeve through the anti-falling jackscrew.
2. The locating pin press-fitting device according to claim 1, wherein the cavities of the pressure lever and the guide sleeve are filled with lubricating oil.
3. The positioning pin press-fitting device according to claim 1 or 2, wherein a connecting mechanism is arranged between the pressure rod and the guide sleeve, the connecting mechanism is formed by forming a concave groove on the pressure rod, a pin hole is formed in the guide sleeve in the radial direction, the connecting pin connects the pressure rod and the guide sleeve through the concave groove and the pin hole, and the concave groove has a space for allowing the connecting pin to slide up and down.
4. The locating pin press-fitting device according to claim 1 or 2, wherein the workpiece is an engine flywheel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811452284.2A CN109202422B (en) | 2018-11-30 | 2018-11-30 | Positioning pin press-fitting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811452284.2A CN109202422B (en) | 2018-11-30 | 2018-11-30 | Positioning pin press-fitting device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109202422A CN109202422A (en) | 2019-01-15 |
| CN109202422B true CN109202422B (en) | 2020-09-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811452284.2A Active CN109202422B (en) | 2018-11-30 | 2018-11-30 | Positioning pin press-fitting device |
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| CN (1) | CN109202422B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110103003A (en) * | 2019-05-23 | 2019-08-09 | 天津泰威齿轮有限公司 | A kind of sub- tooling of efficient pressing |
| CN110900511B (en) * | 2019-12-23 | 2021-06-04 | 重庆长安汽车股份有限公司 | Tool for assembling positioning pin of bearing cap of cylinder cover |
| CN112935753B (en) * | 2021-03-11 | 2022-11-11 | 杭州琦丰能源设备科技有限公司 | Mechanical seal installation adjusting device |
| CN113172406A (en) * | 2021-04-23 | 2021-07-27 | 中国航发贵州红林航空动力控制科技有限公司 | Simple precise positioning pin pressing device for shell |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| RU2373042C2 (en) * | 2007-11-19 | 2009-11-20 | Открытое акционерное общество "Белебеевский завод "Автонормаль" | Method of assembly of hard alloy insertion with case of antiskid pin and facility for implementation of this method |
| CN101357433B (en) * | 2008-09-03 | 2010-06-02 | 东风本田发动机有限公司 | Engine cylinder-cap oil seal, spring-base mounting device and method |
| KR101472111B1 (en) * | 2013-05-24 | 2015-01-05 | 주식회사 협동정밀 | Mold pin removal device |
| CN204094434U (en) * | 2014-07-29 | 2015-01-14 | 浙江吉利罗佑发动机有限公司 | A kind of valve split collets press-loading device |
| CN205852206U (en) * | 2016-07-19 | 2017-01-04 | 芜湖哈特机器人产业技术研究院有限公司 | EPB centrepin press-fitting tool |
| CN107116355B (en) * | 2017-02-21 | 2021-02-02 | 胡君分 | Automatic processing device for pin shaft pressed plastic plate |
| CN206643584U (en) * | 2017-04-01 | 2017-11-17 | 重庆金弓集团动力有限公司 | A kind of diesel engine cylinder head alignment pin press-loading apparatus |
| CN107116249A (en) * | 2017-06-29 | 2017-09-01 | 金陈敏 | One kind is accurately positioned shock-absorbing type Intelligent home device |
| CN207593190U (en) * | 2017-12-19 | 2018-07-10 | 佛山市南海银水鱼机械有限公司 | A kind of multistation pin automatic assembling |
| CN208019744U (en) * | 2017-12-30 | 2018-10-30 | 无锡蓝力智能装备有限公司 | Automobile gearbox assembly line positioning pin press-loading device |
| CN207900282U (en) * | 2018-01-24 | 2018-09-25 | 厦门市克成五金制品有限公司 | A kind of semi-automatic chamfering drilling machine |
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