CN101745799B - Pressing and mounting device for pressing and mounting thin-wall sleeve - Google Patents
Pressing and mounting device for pressing and mounting thin-wall sleeve Download PDFInfo
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- CN101745799B CN101745799B CN2009102652511A CN200910265251A CN101745799B CN 101745799 B CN101745799 B CN 101745799B CN 2009102652511 A CN2009102652511 A CN 2009102652511A CN 200910265251 A CN200910265251 A CN 200910265251A CN 101745799 B CN101745799 B CN 101745799B
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Abstract
The invention relates to a device for pressing and mounting a thin-wall sleeve, which can solve the problem that the thin-wall sleeve is difficult to press and mount. The device comprises a press head, a basic shaft, a sliding sleeve, an upper floating retention sleeve, a lower floating retention sleeve, a copper sleeve and the like. The upper end face of the basic shaft is provided with a flange plate which is coaxially connected on a fixed fixture block by screws, an annular clamping groove of the fixed fixture block is clamped and hooped on a shaft journal at the upper part of the upper floating retention sleeve, the lower floating retention sleeve is coaxially positioned at the lower part of the upper floating retention sleeve, the upper floating retention sleeve and the lower floating retention sleeve are connected into a whole by the nuts of the retention sleeves, and the copper sleeve is sleeved and arranged on the lower floating retention sleeve. The sliding sleeve is arranged in the upper floating retention sleeve and the lower floating retention sleeve, and the middle part of the external diameter of the sliding sleeve is provided with a piston ring; and the lower half section of the sliding sleeve is provided with a solid shaft, and the end face of the solid shaft is provided with three centripetal tapered wedge T-shaped grooves which are uniformly distributed along a circumferential direction. The device has simple structure and convenient operation and can carry out pressing and mounting motions as long as the thin-wall sleeve is sleeved into the press head and a jack catch of a control button extends out, so that the parts of the thin-wall sleeve obtain higher pressing and mounting accuracy, and the effective guarantee is provided for enhancing the quality of a class of cylinder body.
Description
Technical field
Patent of the present invention relates to a kind of thin-walled covering device that press-fits.
Background technology
Thin-walled cover in the engine cylinder body opening generally all should possess characteristics such as oil storage is lubricated and wear-resisting, so concerning its thin-walled cover, the higher surface smoothness and the requirement of form accuracy are the guarantees that it embodies its characteristic, and its assembly quality plays most important effect to the operation of cylinder parts.
The method that press-fits the employing of thin-walled cover at present is that the thin-walled cover is placed directly on the part aperture that is assembled, see Fig. 3, the chamfering guiding of the hole in piece part that utilization is assembled, because hole in piece part chamfering guiding is shorter, press-fit in addition in the process, pressure head directly contact and transmits pressure with the thin-walled cover; when the thin-walled cover bears pressure because the easy diagonal distortion of unbalance stress; thereby cause that the thin-walled after the assembling overlaps the cylindricity precise decreasing, cause thin-walled to overlap and the hole in piece part applying degree that is assembled poor, qualification rate is lower.
Summary of the invention
In order to solve the difficult problem that press-fits the thin-walled cover, the invention provides a kind of press-loading apparatus that press-fits the thin-walled cover.
Realize that the above-mentioned purpose technical scheme is as follows:
A kind of press-loading apparatus that press-fits thin-walled cover comprises standard shaft 1, sliding sleeve 7, upward float maintainance set 3, unsteady maintainance set 5 and copper sheathing 16 down;
Two fixedly the annular slot clip of fixture block 2 on the axle journal on last maintainance set 3 tops of floating; Down unsteady maintainance set 5 coaxial maintainance set 3 bottoms of floating that are positioned at, both adjacent outsides are provided with connecting thread, connect as one with following unsteady maintainance set 5 by going up maintainance set nut 4 and cooperating of described connecting thread the maintainance set 3 that floats; Be arranged with copper sheathing 16 on the unsteady maintainance set 5 down;
Same footpath, same radially upper and lower portion, standard shaft 1 middle part upwards is laid with four steel ball holes respectively, be provided with steel ball 6 in each steel ball hole, form two-layer steel ball 6 up and down, every layer is four steel balls, be provided with two axis of cone 14 in the standard shaft 1 between the two-layer steel ball, be provided with spring 15 between two axis of cone 14 and separate, the tapering point of the axis of cone 14 contacts with steel ball 6;
Sliding sleeve 7 is positioned at float maintainance set 3 and following unsteady maintainance set 5; Its top is hollow shaft, and the bottom is a solid shafting; Sliding sleeve 7 tops are set on the standard shaft 1, and by the up and down two-layer steel ball on the standard shaft 1 with its floating type being supported on the standard shaft 1; Sliding sleeve 7 external diameters middle part is provided with piston ring, its solid shafting end radial equipartition is provided with three entad wedge T-slots, and each T-slot place is provided with guiding claw 8, and the other end of guiding claw 8 is overhanging, along three circumferentially uniform guiding claws 8, chamfering is established in the overhanging end bottom of guiding claw 8;
Down unsteady maintainance set 5 and copper sheathing 16 bottoms are provided with maintainance set end cap 13, and the overhanging end of guiding claw 8 is floating down between maintainance set 5 lower ends and the maintainance set end cap 13 radially;
Described going up floated maintainance set 3 and is respectively equipped with an oil-in on unsteady maintainance set 5 sidewalls down, the piston ring at sliding sleeve 7 middle parts is between two oil-ins, and the cavity and the piston ring in the middle part of sliding sleeve 7 external diameters that upward float between maintainance set 3, following unsteady maintainance set 5 and the sliding sleeve 7 form hydraulic jack.
The axle journal on described maintainance set 3 tops of go up floating radially is provided with and two fixing assembling annular grooves of cooperating of the following chimb of fixture block 2 annular slots.
Be respectively equipped with a sealing ring on the madial wall of described upward float maintainance set 3 and following unsteady maintainance set 5.
Described sliding sleeve 7 external diameters middle part piston ring is provided with sealing ring.
The described axis of cone 14 is the step axle, and the middle part transition position of its step axle is the frustum of a cone, and the frustum of a cone place of the axis of cone 14 contacts with steel ball 6.
Described maintainance set end cap 13 inboard footpaths upwards are laid with three claw grooves that cooperate with the claw 8 that leads, and three guiding claws 8 lay respectively in three claw grooves.
The overhanging end bottom of described guiding claw 8 is provided with 3 * 30 ° of chamferings.
Be provided with wear-resisting spacer 10 between unsteady maintainance set 5, copper sheathing 16 bottoms and the maintainance set end cap 13 under described, wear-resisting spacer 10 axial lateral surfaces are the plane, be connected with maintainance set end cap 13, wear-resisting spacer 10 medial surfaces are provided with the short tube that cooperates with sliding sleeve 7 solid shaftings, short tube inserts in the following unsteady maintainance set 5, and with following unsteady maintainance set 5 terminal endoporus interference fit, its inwall and sliding sleeve 7 terminal outer wall matched in clearance.
Between described copper sheathing 16 and the following unsteady maintainance set 5 is interference fit.
Useful technique effect of the present invention: be that this device is easy to operate, as long as the thin-walled cover is inserted in pressure head, the control button claw stretches out and can press-fit action, make thin-walled cover part obtain the higher precision that press-fits, quality to the casing class provides effective assurance, be pressed into thin-walled cover surface, back and form accuracy height, cylindricity mean value has promoted 0.005mm.Applying degree 100% meets the demands.
Description of drawings
Fig. 1 is the design drawing of patent of the present invention,
Fig. 2 is the application state figure of patent of the present invention,
Fig. 3 is the schematic diagram of common pressing method,
Fig. 4 is the A-A cutaway view of the standard shaft of Fig. 1,
Fig. 5 is the B-B cutaway view of Fig. 1,
Fig. 6 is the C-C cutaway view of Fig. 1,
Fig. 7 is the D-D cutaway view of Fig. 6,
Fig. 8 is the E-E cutaway view of Fig. 1.
Among the figure: fixedly float on the fixture block, 3 maintainance set, 4 maintainance set nuts, 5 times unsteady maintainance sets, 6 steel balls, 7 sliding sleeves, 8 guiding claws, 9 hydraulic jack flanges, 10 wear-resisting spacers, 11 oil-ins one, 12 oil-ins two, 13 maintainance set end caps, 14 axis of cone, 15 springs, 16 copper sheathings, 17 control panels, 18 cylinder bodies, 20 cylinder sleeves, 21 liftings of 1 standard shaft, 2 carried raceway, 22 press frames.
The specific embodiment
Below in conjunction with accompanying drawing, the invention will be further described by example.
Referring to Fig. 1, a kind of press-loading apparatus that press-fits thin-walled cover comprises standard shaft 1, sliding sleeve 7, upward float maintainance set 3, unsteady maintainance set 5 and copper sheathing 16 etc. down, and the upper end of press-loading apparatus is connected with hydraulic jack flange 9.
The axle journal on maintainance set 3 tops of go up floating radially is provided with and two fixing assembling annular grooves of cooperating of the following chimb of fixture block 2 annular slots, by two fixedly the clip of the assembling annular groove on following chimb and last unsteady maintainance set 3 axle journals of fixture block 2 annular slots cooperate, realize the clip assembling of the two;
Down unsteady maintainance set 5 coaxial maintainance set 3 bottoms of floating that are positioned at, both adjacent outsides are provided with connecting thread, connect as one with following unsteady maintainance set 5 by going up maintainance set nut 4 and cooperating of described connecting thread the maintainance set 3 that floats; Being set with copper sheathing 16 on the unsteady maintainance set 5 down, is interference fit between copper sheathing 16 and the following unsteady maintainance set 5.Be separately installed with a sealing ring on the madial wall of upward unsteady maintainance set 3 and following unsteady maintainance set 5.
Sliding sleeve 7 is positioned at float maintainance set 3 and following unsteady maintainance set 5; Its top is hollow shaft, and the bottom is a solid shafting; Sliding sleeve 7 tops are set on the standard shaft 1, and by the up and down two-layer steel ball on the standard shaft 1 with its floating type being supported on the standard shaft 1; Sliding sleeve 7 external diameters middle part is provided with piston ring, see Fig. 1, its solid shafting end radial equipartition is provided with three entad wedge T-slots, each T-slot place is provided with guiding claw 8, the other end of guiding claw 8 is overhanging, along three circumferentially uniform guiding claws 8, see Fig. 6 and Fig. 7, the overhanging end bottom of guiding claw 8 is provided with 3 * 30 ° of chamferings.
Unsteady maintainance set 5 and copper sheathing 16 bottoms are provided with maintainance set end cap 13 down, maintainance set end cap 13 inboard footpaths upwards are laid with three claw grooves that cooperate with the claw 8 that leads, three guiding claws 8 lay respectively in three claw grooves, and guiding claw 8 can be flexible along the claw groove.Maintainance set end cap 13 is with copper sheathing 16 and implement spacing and fixing along three circumferentially uniform guiding claws 8.
Between unsteady maintainance set 5, copper sheathing 16 bottoms and the maintainance set end cap 13 wear-resisting spacer 10 is installed down, wear-resisting spacer 10 axial lateral surfaces are the plane, be connected by bolt with 13 cooperations of maintainance set end cap, wear-resisting spacer 10 medial surfaces are provided with the short tube that cooperates with sliding sleeve 7 solid axle heads, short tube inserts in the following unsteady maintainance set 5, and with following unsteady maintainance set 5 terminal endoporus interference fit, its inwall and sliding sleeve 7 terminal outer wall matched in clearance.Wear-resisting spacer 10 of while is enclosed within sliding sleeve 7 ends and play the guiding role.
According to using needs, this device by standard shaft 1, fixedly fixture block 2, two-layer steel ball 6, two axis of cone 14 and spring 15 constitute unsteady self-alignment alignment mechanism up and down, its apophysis 1 realizes that by steel ball 6 (standard shaft is to float to radial floating, be sliding sleeve 7 is realized relative standard shaft 1 by steel ball 6 radial floating), realize self-centering by interior standard shaft 1, the axis of cone 14 and spring 15.
By on the sliding sleeve 7 three entad the wedge T-slot with constitute link gear along three circumferentially uniform guiding claws 8, moving up and down wherein by sliding sleeve 7, promote three guiding claws 8 and make radial expansion, the overhanging end of guiding claw 8 is provided with 3 * 30 ° of chamferings, can lead when ironed wall overlaps.
Go up and float maintainance set 3 and be respectively equipped with an oil-in on unsteady maintainance set 5 sidewalls down, the piston ring at sliding sleeve 7 middle parts is equipped with sealing ring on the piston ring of sliding sleeve 7 external diameters middle part between two oil-ins.Cavity and the piston ring in the middle part of sliding sleeve 7 external diameters gone up between the maintainance set 3 that floats, following unsteady maintainance set 5 and the sliding sleeve 7 form double-act-ing hydraulic J-Horner, and described double acting represents that two oil-ins all possess the oil inlet and oil return function.After putting cylinder sleeve on the pressure head, press button, oil-in one 11 oil-feeds, oil-in 2 12 oil returns, sliding sleeve slides downwards drove the guiding claw and stretched out this moment; Press the return button after press-fiting end, oil-in 2 12 oil-feeds, oil-in one 11 oil returns, move on the sliding sleeve this moment, drives the withdrawal of guiding claw.
Specific operation process:
Earlier the thin-walled cover is enclosed within on the copper sheathing 16, it is to be enclosed within the assembling process for fear of thin-walled not scratched that copper sheathing adopts copper, utilize the frictional force between copper sheathing and the thin-walled cover to keep the thin-walled cover not glide, press the claw control button, one 11 oil-feeds of (as Fig. 1) oil-in, oil-in 2 12 oil returns, hydraulic oil promotes the piston ring on the sliding sleeve 7, sliding sleeve 7 is moved down, and extend radially out (protection cylinder sleeve lower surface in press-fiting process is not subjected to a bit resistance) by the wedge T-slot on sliding sleeve 7 lower semisections (as Fig. 6, Fig. 7) promotion guiding claw 8; Press the dynamic compressor start button, pressure head moves down, and when arriving among Fig. 2 dotted line cylinder sleeve 20 positions, the guiding claw begins guiding, at this moment, if there is minor deviations in the position, then drive sliding sleeve 7 extruding steel balls 6 by guiding claw 8, steel ball 6 pushes the axis of cone 14 again, the axis of cone 14 generation vertical direction move and force spring 15 to shrink, the pressure head part position between flying height one and flying height two that suspends changes this moment, and the axial location in cylinder hole is found in realization ram position self-adjusting.The lower surface that is to say thin-walled cover in whole pressurized process is not stressed, and thin-walled cover outer wall can not be subjected to side force yet, only be subjected to the frictional resistance of outer wall, and the axis of thin-walled cover can be regarded definitely with the cylinder axially bored line in pressurized process and overlaps fully as.
Press-fit and finish, press claw and unclamp control button, oil-in 2 12 oil-feeds, oil-in one 11 oil returns, sliding sleeve 7 moves up, guiding claw 8 is radially withdrawn, press dynamic compressor return button, oil cylinder is mentioned pressure head, after pressure head breaks away from cylinder sleeve, spring drives the axis of cone immediately steel ball is extruded, and forces the part that suspends of pressure head to get back to original position.
Claims (8)
1. press-loading apparatus that press-fits thin-walled cover is characterized in that: comprise standard shaft (1), sliding sleeve (7), upward float maintainance set (3), unsteady maintainance set (5) and copper sheathing (16) down;
Standard shaft (1) is a hollow shaft, its upper end is a disc face, be laid with screwed hole and the bolt hole that is connected and fixed fixture block on the disc face, the bottom surface of disc face is provided with the fixedly fixture block (2) of two semi-annular shapes, and fixedly fixture block (2) inboard of semi-annular shape radially is provided with annular slot;
Two fixedly the annular slot clip of fixture block (2) on the axle journal on last maintainance set (3) top of floating; Descend coaxial maintainance set (3) bottom of floating that is positioned at of unsteady maintainance set (5), both adjacent outsides are provided with connecting thread, by going up maintainance set nut (4) and cooperating of described connecting thread unsteady maintainance set (3) and descending unsteady maintainance set (5) to connect as one; Be arranged with copper sheathing (16) on the unsteady maintainance set (5) down;
Same footpath, same radially upper and lower portion, standard shaft (1) middle part upwards is laid with four steel ball holes respectively, be provided with steel ball (6) in each steel ball hole, form two-layer steel ball (6) up and down, every layer is four steel balls, be provided with two axis of cone (14) in the standard shaft between the two-layer steel ball (1), be provided with spring (15) between two axis of cone (14) and separate, the axis of cone (14) is the step axle, the middle part transition position of its step axle is the frustum of a cone, and the frustum of a cone place of the axis of cone (14) contacts with steel ball (6);
Sliding sleeve (7) is positioned at float maintainance set (3) and following unsteady maintainance set (5); Its top is hollow shaft, and the bottom is a solid shafting; Sliding sleeve (7) top is set on the standard shaft (1), and by the up and down two-layer steel ball on the standard shaft (1) with its floating type being supported on the standard shaft (1); Sliding sleeve (7) external diameter middle part is provided with piston ring, its solid shafting end radial equipartition is provided with three entad wedge T-slots, each T-slot place is provided with guiding claw (8), the other end of guiding claw (8) is overhanging, along three circumferentially uniform guiding claws (8), chamfering is established in the overhanging end bottom of guiding claw (8);
Down unsteady maintainance set (5) and copper sheathing (16) bottom are provided with maintainance set end cap (13), and the overhanging end of guiding claw (8) is positioned between following unsteady maintainance set (5) lower end and the maintainance set end cap (13) radially;
Described going up floated maintainance set (3) and is respectively equipped with an oil-in on unsteady maintainance set (5) sidewall down, the piston ring at sliding sleeve (7) middle part is between two oil-ins, and the cavity and the piston ring in the middle part of sliding sleeve (7) external diameter that upward float between maintainance set (3), following unsteady maintainance set (5) and the sliding sleeve (7) form hydraulic jack.
2. a kind of press-loading apparatus that press-fits thin-walled cover according to claim 1 is characterized in that: the described axle journal of going up maintainance set (3) top of floating radially is provided with and two fixing assembling annular grooves of cooperating of the following chimb of fixture block (2) annular slot.
3. a kind of press-loading apparatus that press-fits the thin-walled cover according to claim 1 is characterized in that: be respectively equipped with a sealing ring on the madial wall of described upward float maintainance set (3) and following unsteady maintainance set (5).
4. a kind of press-loading apparatus that press-fits the thin-walled cover according to claim 1 is characterized in that: described sliding sleeve (7) external diameter middle part piston ring is provided with sealing ring.
5. a kind of press-loading apparatus that press-fits the thin-walled cover according to claim 1, it is characterized in that: the inboard footpath of described maintainance set end cap (13) upwards is laid with three claw grooves that cooperate with the claw that leads (8), and three guiding claws (8) lay respectively in three claw grooves.
6. a kind of press-loading apparatus that press-fits the thin-walled cover according to claim 1, it is characterized in that: the overhanging end bottom of described guiding claw (8) is provided with 3 * 30 ° of chamferings.
7. a kind of press-loading apparatus that press-fits the thin-walled cover according to claim 1, it is characterized in that: be provided with wear-resisting spacer (10) between unsteady maintainance set (5), copper sheathing (16) bottom and the maintainance set end cap (13) under described, wear-resisting spacer (10) axially lateral surface is the plane, be connected with maintainance set end cap (13), wear-resisting spacer (10) medial surface is provided with the short tube that cooperates with sliding sleeve (7) solid shafting, short tube inserts in the following unsteady maintainance set (5), and with the following terminal endoporus interference fit of unsteady maintainance set (5), the terminal outer wall matched in clearance of its inwall and sliding sleeve (7).
8. a kind of press-loading apparatus that press-fits the thin-walled cover according to claim 1 is characterized in that: be interference fit between described copper sheathing (16) and the following unsteady maintainance set (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009102652511A CN101745799B (en) | 2009-12-18 | 2009-12-18 | Pressing and mounting device for pressing and mounting thin-wall sleeve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009102652511A CN101745799B (en) | 2009-12-18 | 2009-12-18 | Pressing and mounting device for pressing and mounting thin-wall sleeve |
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| Publication Number | Publication Date |
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| CN101745799A CN101745799A (en) | 2010-06-23 |
| CN101745799B true CN101745799B (en) | 2011-06-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2009102652511A Active CN101745799B (en) | 2009-12-18 | 2009-12-18 | Pressing and mounting device for pressing and mounting thin-wall sleeve |
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| CN104384900B (en) * | 2014-11-03 | 2016-07-06 | 广西玉柴机器股份有限公司 | A kind of cylinder cap fuel injector copper sheathing pressure-mounting machine steel ball automatic grabbing device and method |
| CN106949803B (en) * | 2017-04-19 | 2023-09-22 | 苏州普费勒精密量仪有限公司 | Flexible floating measurement device |
| CN107350786B (en) * | 2017-09-07 | 2023-07-25 | 上海精智实业股份有限公司 | Floating type centering clamping jaw |
| CN107598528A (en) * | 2017-10-19 | 2018-01-19 | 武汉联航机电有限公司 | A kind of floating type pressing machine |
| CN110587542B (en) * | 2019-10-11 | 2020-12-25 | 珞石（北京）科技有限公司 | Camshaft sleeve press-fitting device |
| CN112246997B (en) * | 2020-10-10 | 2024-04-05 | 常州今创风挡系统有限公司 | Quick continuous gun |
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| DE3900690A1 (en) * | 1989-01-12 | 1990-07-19 | Bauer Fritz & Soehne Ohg | Method for introducing pressurised gas into a pneumatic spring and a pneumatic spring suitable for this purpose |
| WO1998027361A1 (en) * | 1996-12-17 | 1998-06-25 | Lozano Bonet Jose | Valve-free gas spring, and apparatus for pressurizing such spring |
| US6216326B1 (en) * | 1998-09-28 | 2001-04-17 | Ronald A. Ritter | Tube pulling apparatus |
| CN101439455A (en) * | 2007-11-20 | 2009-05-27 | 扬动股份有限公司 | Orienting pressing in method for liner bushing |
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|---|---|---|---|---|
| DE3900690A1 (en) * | 1989-01-12 | 1990-07-19 | Bauer Fritz & Soehne Ohg | Method for introducing pressurised gas into a pneumatic spring and a pneumatic spring suitable for this purpose |
| WO1998027361A1 (en) * | 1996-12-17 | 1998-06-25 | Lozano Bonet Jose | Valve-free gas spring, and apparatus for pressurizing such spring |
| US6216326B1 (en) * | 1998-09-28 | 2001-04-17 | Ronald A. Ritter | Tube pulling apparatus |
| CN101439455A (en) * | 2007-11-20 | 2009-05-27 | 扬动股份有限公司 | Orienting pressing in method for liner bushing |
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| CN101745799A (en) | 2010-06-23 |
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Address after: 230601 Anhui Province, Hefei City Industrial Park, the Peach Blossom Road No. 669 Patentee after: Anhui Jianghuai Automobile Group Limited by Share Ltd Address before: The East Road in Baohe District of Hefei city of Anhui Province, No. 176 230022 Patentee before: Anhui Jianghuai Automobile Co., Ltd. |
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Address after: 230601 No. 99 Ziyun Road, Hefei Economic and Technological Development Zone, Anhui Province Patentee after: Anhui Jianghuai Automobile Group Limited by Share Ltd Address before: 230601 No. 669 Shixin Road, Taohua Industrial Park, Hefei City, Anhui Province Patentee before: Anhui Jianghuai Automobile Group Limited by Share Ltd |