CN103894818A - Press-fitting machine for variable-center-distance auxiliary box spindle and intermediate shaft bearing - Google Patents

Press-fitting machine for variable-center-distance auxiliary box spindle and intermediate shaft bearing Download PDF

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Publication number
CN103894818A
CN103894818A CN201210589797.4A CN201210589797A CN103894818A CN 103894818 A CN103894818 A CN 103894818A CN 201210589797 A CN201210589797 A CN 201210589797A CN 103894818 A CN103894818 A CN 103894818A
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China
Prior art keywords
press
transposition
loading device
working frame
odd
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CN201210589797.4A
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Chinese (zh)
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CN103894818B (en
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陈书宏
曹廷
佟梦晗
施广明
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Shenyang Institute of Automation of CAS
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Shenyang Institute of Automation of CAS
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Publication of CN103894818A publication Critical patent/CN103894818A/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B27/00—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for
    • B25B27/02—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for connecting objects by press fit or detaching same
    • B25B27/06—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for connecting objects by press fit or detaching same inserting or withdrawing sleeves or bearing races
    • B25B27/064—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for connecting objects by press fit or detaching same inserting or withdrawing sleeves or bearing races fluid driven

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Press Drives And Press Lines (AREA)

Abstract

The invention relates to a press-fitting machine for a variable-center-distance auxiliary box spindle and an intermediate shaft bearing. A lifting mechanism is installed on the lower portion of a lathe bed and drives a working framework to ascend and descend. A double-layer conveyor line penetrates through the working framework. A plurality of press-fitting mechanisms are installed on the top of the working framework. The middle press-fitting mechanism is directly installed on the working framework. The press-fitting mechanisms on the two sides are respectively connected with a mobile variable-distance mechanism. The mobile variable-distance mechanisms comprise transposition sliding blocks, transposition guide rails and transposition cylinders. The transposition guide rails are installed on the working framework. The press-fitting mechanisms on the two sides are connected with the transposition guide rails respectively through the transposition sliding blocks and are driven by the transposition cylinders to reciprocate along the transposition guide rails. The press-fitting mechanisms comprise press-fitting oil cylinders, pressure sensors, pressure heads and displacement sensors. The pressure sensors and the pressure heads are sequentially connected with the output ends of the press-fitting cylinders. Each displacement sensor is installed on one side of the corresponding press-fitting oil cylinder. The press-fitting machine for the variable-center-distance auxiliary box spindle and the intermediate shaft bearing is driven by a pneumatic system, so that the center distance of the pressure heads is varied, and multiple products can share one device.

Description

A kind of Variable Centre Distance odd-side main shaft midship shaft bearing pressing machine
Technical field
The present invention relates to the press-loading device of two intermediate shaft type secondary box of gearbox main shafts and midship shaft bearing, specifically a kind of Variable Centre Distance odd-side main shaft midship shaft bearing pressing machine.
Background technology
Automotive transmission is the main part of automobile dynamic system.The main function of speed changer is to output to driving wheel after the power change gearratio that engine is produced, and the travel speed of vehicle and tractive force can be changed in a big way, to adapt to the often needs of the driving conditions of conversion of automobile; Also make engine work under the operating mode of high effect, low oil consumption simultaneously.
Two intermediate shaft type speed changers modes that adopt major and minor case combination realize more gear change more, to obtain more speed and change in torque.Wherein, odd-side parts mainly comprise the parts such as odd-side housing, auxiliary box output shaft (main shaft), jackshaft, each axle bearing and gear.
When speed changer work, each axle is all at High Rotation Speed, and therefore the assembly precision of the bearing to each axle on gearbox body is had relatively high expectations.In addition, many gearboxes manufacturing enterprise, for adapting to market demands, often need to produce the speed changer of Multiple Type on same production line; And the press-loading device of low precision, single centre-to-centre spacing is difficult to meet the requirement of productive temp, also can cause unstable product quality.
Summary of the invention
In order to solve the problem of two intermediate shaft type secondary box of gearbox bearing press mountings of different main jackshaft centre-to-centre spacing, the object of the present invention is to provide a kind of Variable Centre Distance odd-side main shaft midship shaft bearing pressing machine of automatic adjusting pressure head centre-to-centre spacing.
The object of the invention is to be achieved through the following technical solutions:
The present invention includes lathe bed, press-loading device, working frame, lifting mechanism and mobile pitch-changing mechanism, wherein lifting mechanism is arranged on the bottom of lathe bed, and working frame is connected with lifting mechanism, drives lifting by lifting mechanism; Pallet positioning seat is installed in described working frame, odd-side component transfer is passed by working frame to the double-deck transmission line body of working frame inner pallet positioning seat top; The top of described working frame is provided with many cover press-loading devices, press-loading device in the middle of being positioned at is directly installed on working frame, the press-loading device that is positioned at both sides is connected with respectively mobile pitch-changing mechanism, described mobile pitch-changing mechanism comprises transposition slide block, transposition guide rail and transposition cylinder, transposition guide rails assembling is on working frame, the press-loading device that is positioned at both sides is connected with transposition guide rail by transposition slide block respectively, and is moved back and forth by transposition air cylinder driven, edge transposition guide rail; Described press-loading device comprises and press-fits oil cylinder, pressure sensor, pressure head and displacement transducer, press-fits output Bonding pressure sensor, the pressure head successively of oil cylinder, and displacement transducer is arranged on a side that press-fits oil cylinder; Be positioned at the pressure head on the press-loading device of both sides and be positioned in the middle of press-loading device on pressure head corresponding with each dead eye on odd-side assembly respectively, by the hydraulic oil cylinder driving that press-fits separately, the bearing on described odd-side assembly is pressed into odd-side.
Wherein: described mobile pitch-changing mechanism also comprises locking cylinder and locking taper pin, wherein locking cylinder is arranged on working frame, the output of locking cylinder is connected with locking taper pin, the side of described transposition slide block is provided with the locating slot corresponding with described locking taper pin, after the press-loading device that described transposition cylinder drive is positioned at both sides moves into place, described locking taper pin is driven and is headed in described locating slot by locking cylinder; Described press-loading device has guiding mechanism, and this guiding mechanism comprises guide pillar and guide pin bushing, and the guide pin bushing of the press-loading device in the middle of being positioned at is arranged on working frame, and the guide pin bushing that is positioned at the press-loading device of both sides is arranged on respectively on described transposition slide block; One end of guide pillar in each guiding mechanism is connected with the pressure sensor in corresponding press-loading device respectively, and the other end of the guide pillar in each guiding mechanism is passed by guide pin bushing separately respectively and connects pressure head; Described lathe bed is provided with line slideway auxiliary, and described working frame drives along this line slideway auxiliary lifting by lifting mechanism; Described working frame comprises upper plate, column and lower plate, and upper plate is connected by many root posts with lower plate, and described lower plate is connected with lifting mechanism, and the press-loading device in the middle of being positioned at is directly installed on upper plate, and described transposition cylinder and transposition guide rail are arranged on respectively on upper plate; Described pallet positioning seat is arranged in lower plate; Described lower plate is between the upper layer line body and lower layer line body of double-deck transmission line body; Described lifting mechanism comprises elevating ram and adpting flange, and this elevating ram is arranged on the bottom of lathe bed, and adpting flange is connected in the output of elevating ram; Described working frame is connected with adpting flange, drives lifting by elevating ram; Described transposition slide block is matched in clearance with transposition guide rail, and the cross section of transposition rail height direction is "T"-shaped, and the chute of described transposition slide block two inner sides is also "T"-shaped.
Advantage of the present invention and good effect are:
1. the press-loading device of both sides of the present invention can move by mobile pitch-changing mechanism control, conversion pressure head centre-to-centre spacing, realizes with the each dead eye of odd-side and accurately locating, and can on a production line, produce the speed changer that press-fits Multiple Type, and ensure the high precision that press-fits, good product quality.
2. the present invention is furnished with pressure sensor, displacement transducer, can effectively control assembly precision PLC control system real-time data collection, draws line pressure shift curve, and prison side pressure packing quality, has ensured product quality.
3. all cylinders of the present invention, oil cylinder, by the programme-control of setting in PLC control system, coordinate the devices such as touch-screen to control and press-fit process, have improved efficiency of assembling.
4. cost of the present invention and operating cost are low, and work is smooth, easy to operate.
Brief description of the drawings
Fig. 1 is overall structure front view of the present invention;
Fig. 2 is overall structure left view of the present invention;
Fig. 3 is structure top view of the present invention;
Fig. 4 be in Fig. 2, replace guide rail and transposition slide block partial enlarged drawing;
Fig. 5 is control system flow chart of the present invention;
Wherein: 1 is elevating ram, 2 is adpting flange, and 3 is pallet, 4 is odd-side assembly, and 5 is pressure head, and 6 is guide pillar, 7 is guide pin bushing, and 8 is pressure sensor, and 9 is displacement transducer, 10 for press-fiting oil cylinder, and 11 is lathe bed, and 12 is backboard, 13 for press-fiting cylinder riser, and 14 for press-fiting cylinder transverse slat, and 15 is transposition slide block, 16 is transposition guide rail, 17 is locking taper pin, and 18 is upper plate, and 19 is column, 20 is pallet positioning seat, 21 is lower plate, and 22 is double-deck transmission line body, and 23 is locking cylinder, 24 is transposition cylinder, and 25 is line slideway auxiliary.
Detailed description of the invention
Below in conjunction with accompanying drawing, the invention will be further described.
As shown in Fig. 1～4, the present invention includes lathe bed 11, press-loading device, working frame, lifting mechanism and mobile pitch-changing mechanism, wherein lifting mechanism is arranged on the bottom of lathe bed 11, and working frame is connected with lifting mechanism, drives lifting by lifting mechanism; Press-loading device and mobile pitch-changing mechanism are arranged on respectively the top of working frame, press-loading device is multiple, the present embodiment is three, and the press-loading device in the middle of being arranged in is corresponding with the main shaft bearing of odd-side assembly 4, and the press-loading device that is arranged in both sides is corresponding with the midship shaft bearing of odd-side assembly 4; The press-loading device corresponding with midship shaft bearing in odd-side assembly 4 is at least two, also can increase as required; The press-loading device corresponding with midship shaft bearing in odd-side assembly 4 connects respectively a mobile pitch-changing mechanism.
Working frame comprises upper plate 18, lower plate 21, column 19 and pallet positioning seat 20, lifting mechanism comprises elevating ram 1 and adpting flange 2, press-loading device comprises pressure head 5, guide pillar 6, guide pin bushing 7, pressure sensor 8, displacement transducer 9, press-fit oil cylinder 10, press-fit cylinder riser 13 and press-fit cylinder transverse slat 14, mobile pitch-changing mechanism comprises transposition slide block 15, transposition guide rail 16, transposition cylinder 24, locking cylinder 23 and locking taper pin 17.Pallet 4 is positioning tools, and odd-side assembly 3 is placed on pallet 4, locates by alignment pin; Double-deck transmission line body 22 is transfer systems of odd-side assembly, and the pallet 4 of placing odd-side assembly 3 moves on double-deck transmission line body 22.
Upper plate 18 is connected by many root posts 19 with lower plate 21, and pallet positioning seat 20 is arranged in lower plate 21.Press-loading device is totally three covers, centre press-fit main shaft bearing in odd-side assembly 4 press-loading device press-fit cylinder riser 13 and guide pin bushing 7 is directly installed on the upper plate 18 of working frame, press-fit cylinder riser 13 and guide pin bushing 7 that both sides press-fit the press-loading device of midship shaft bearing in odd-side assembly 4 are arranged on respectively on two transposition slide blocks 15, the transposition guide rail 16 coordinating with transposition slide block 15 is arranged on the upper plate 18 of working frame, and transposition slide block 15 moves back and forth along transposition guide rail 16.Transposition cylinder 24, locking cylinder 23 are arranged on the upper plate 18 of working frame, and the piston rod of transposition cylinder 24 is connected with transposition slide block 15, and the piston rod of locking cylinder 23 is installed locking taper pin 17.Pressure sensor 8 is arranged between the piston rod and guide pillar 6 that press-fits oil cylinder 10, and displacement transducer 9 is arranged on and press-fits on cylinder riser 13.
Transposition cylinder 24 drives transposition slide blocks 15, and then the press-loading device that makes both sides press-fit midship shaft bearing moves back and forth along transposition guide rail 16, to realize the conversion of the different centre-to-centre spacing of each pressure head.After press-loading device moves into place, locking cylinder 23 stretches out, and locking taper pin 17 inserts the locating slot of transposition slide block 15 sides, and press-loading device is fixed, and prevents from becoming flexible.Again transform center apart from time, locking cylinder 23 is first return, then the action that replaces.Transposition slide block 15 is matched in clearance with transposition guide rail 16, the cross section of transposition guide rail 16 short transverses is "T"-shaped, the chute of transposition 15 liang of inner sides of slide block is also "T"-shaped, can bear the load of direction up and down simultaneously, and there is interchangeability, both realize accurate location, ensured again the requirement of strength under the effect of higher pressure dress power.
Elevating ram 1 is arranged on the bottom of lathe bed 11, and adpting flange 2 is connected in the output of elevating ram 1, and the upper plate 18 of working frame is connected with elevating ram 1 by adpting flange 2 respectively with lower plate 21.Working frame moves up and down along the line slideway auxiliary 25 being fixed on lathe bed 11 under the effect of elevating ram 1.Double-deck transmission line body 22 is through working frame, the lower plate 21 of working frame between upper layer line body and lower layer line body, odd-side assembly 4 moves in arrival equipment working frame on double-deck transmission line body 22 by pallet 2, be positioned at pallet positioning seat 20 above.
Operation principle of the present invention is:
Four cylinders of the present invention (two transpositions cylinders 24 and two locking cylinders 23), four oil cylinders (three press-fit oil cylinder 10 and an elevating ram 1) are connected with PLC control system by solenoid directional control valve, the pressure sensor, the displacement transducer that on each press-loading device, are equipped with are connected with PLC control system respectively, pass in real time surveyed numerical value back.PLC control system of the present invention is prior art, as shown in Figure 5.Operation principle is as follows:
After system powers on, on touch-screen, according to technological requirement, the parameters such as pressure assembling force, the displacement upper limit and product type are set, equipment PLC control system is according to model control transposition cylinder 24 and the locking cylinder 23 of input, auto-changing both sides press-fit the position of the press-loading device of midship shaft bearing, make equipment pressure head centre-to-centre spacing consistent with casing dead eye centre-to-centre spacing, and be locked.After pallet 3 and odd-side assembly 4 carried and put in place, three groups of bearings are placed on odd-side dead eye; Press afterwards start button, equipment is started working; Elevating ram 1 push the work forward framework rise, pallet positioning seat 20 holds up the pallet 3 on double-deck transmission line body 22, make pallet 3 and odd-side assembly 4 depart from double-deck transmission line body 22, and and equipment between realize accurately location, three axis holes of the pressure head 5 of three press-loading devices and odd-side are coaxial; Three press-fit oil cylinder 10 and drive pressure head 5 separately, by the pressure assembling force setting, three groups of bearings that are placed on odd-side are pressed into odd-side; Whether PLC control system automatic decision press-fits qualified, draws line pressure shift curve; Judge qualified after, press-fit oil cylinder 10, elevating ram 1 and reset successively.This press-fits end-of-job.
The present invention can be applicable to high-level automotive transmission assembling line application.

Claims (8)

1. a Variable Centre Distance odd-side main shaft midship shaft bearing pressing machine, it is characterized in that: comprise lathe bed (11), press-loading device, working frame, lifting mechanism and mobile pitch-changing mechanism, wherein lifting mechanism is arranged on the bottom of lathe bed (11), and working frame is connected with lifting mechanism, drives lifting by lifting mechanism; Pallet positioning seat (20) is installed in described working frame, and the double-deck transmission line body (22) that odd-side assembly (3) is transported to working frame inner pallet positioning seat (20) top is passed by working frame; The top of described working frame is provided with many cover press-loading devices, press-loading device in the middle of being positioned at is directly installed on working frame, the press-loading device that is positioned at both sides is connected with respectively mobile pitch-changing mechanism, described mobile pitch-changing mechanism comprises transposition slide block (15), transposition guide rail (16) and transposition cylinder (24), transposition guide rail (16) is arranged on working frame, the press-loading device that is positioned at both sides is connected with transposition guide rail (16) by transposition slide block (15) respectively, and is driven, moved back and forth along transposition guide rail (16) by transposition cylinder (24); Described press-loading device comprises and press-fits oil cylinder (10), pressure sensor (8), pressure head (5) and displacement transducer (9), output Bonding pressure sensor (8), the pressure head (5) successively that press-fits oil cylinder (10), displacement transducer (9) is arranged on a side that press-fits oil cylinder (10); Be positioned at the pressure head (5) on the press-loading device of both sides and be positioned in the middle of press-loading device on pressure head (5) corresponding with the upper each dead eye of odd-side assembly (4) respectively, driven by the oil cylinder (10) that press-fits separately, the bearing on described odd-side assembly (4) is pressed into odd-side.
2. by Variable Centre Distance odd-side main shaft midship shaft bearing pressing machine claimed in claim 1, it is characterized in that: described mobile pitch-changing mechanism also comprises locking cylinder (23) and locking taper pin (17), wherein locking cylinder (23) is arranged on working frame, the output of locking cylinder (23) is connected with locking taper pin (17), the side of described transposition slide block (15) is provided with the locating slot corresponding with described locking taper pin (17), after described transposition cylinder (24) drives the press-loading device that is positioned at both sides to move into place, described locking taper pin (17) is driven and is headed in described locating slot by locking cylinder (23).
3. by Variable Centre Distance odd-side main shaft midship shaft bearing pressing machine claimed in claim 1, it is characterized in that: described press-loading device has guiding mechanism, this guiding mechanism comprises guide pillar (6) and guide pin bushing (7), the guide pin bushing (7) of the press-loading device in the middle of being positioned at is arranged on working frame, and the guide pin bushing (7) that is positioned at the press-loading device of both sides is arranged on respectively on described transposition slide block (15); One end of guide pillar (6) in each guiding mechanism is connected with the pressure sensor (8) in corresponding press-loading device respectively, and the other end of the guide pillar (6) in each guiding mechanism is passed by guide pin bushing (7) separately respectively and connects pressure head (5).
4. by Variable Centre Distance odd-side main shaft midship shaft bearing pressing machine claimed in claim 1, it is characterized in that: described lathe bed (11) is provided with line slideway auxiliary (25), described working frame drives along this line slideway auxiliary (25) lifting by lifting mechanism.
5. by the Variable Centre Distance odd-side main shaft midship shaft bearing pressing machine described in the arbitrary claim of claim 1 to 4, it is characterized in that: described working frame comprises upper plate (18), column (19) and lower plate (21), upper plate (18) is connected by many root posts (19) with lower plate (21), described lower plate (21) is connected with lifting mechanism, it is upper that press-loading device in the middle of being positioned at is directly installed on upper plate (18), and described transposition cylinder (24) and transposition guide rail (16) are arranged on respectively on upper plate (18); Described pallet positioning seat (20) is arranged in lower plate (21).
6. by Variable Centre Distance odd-side main shaft midship shaft bearing pressing machine claimed in claim 5, it is characterized in that: described lower plate (21) is between the upper layer line body and lower layer line body of double-deck transmission line body (22).
7. by Variable Centre Distance odd-side main shaft midship shaft bearing pressing machine claimed in claim 1, it is characterized in that: described lifting mechanism comprises elevating ram (1) and adpting flange (2), this elevating ram (1) is arranged on the bottom of lathe bed (11), and adpting flange (2) is connected in the output of elevating ram (1); Described working frame is connected with adpting flange (2), drives lifting by elevating ram (1).
8. by Variable Centre Distance odd-side main shaft midship shaft bearing pressing machine claimed in claim 1, it is characterized in that: described transposition slide block (15) is matched in clearance with transposition guide rail (16), the cross section of transposition guide rail (16) short transverse is "T"-shaped, and the chute of described transposition slide block (15) two inner sides is also "T"-shaped.
CN201210589797.4A 2012-12-27 2012-12-27 A kind of Variable Centre Distance odd-side main shaft midship shaft bearing pressing machine Expired - Fee Related CN103894818B (en)

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Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104607933A (en) * 2015-02-05 2015-05-13 苏州鸿普精密模具有限公司 Pneumatic-electric hybrid press fitting mechanism of compressor inner core press fitting machine
CN106180955A (en) * 2016-08-14 2016-12-07 大连新钢液压管件有限公司 A kind of automobile pipe fitting flange pressing machine
CN107553131A (en) * 2017-09-27 2018-01-09 江苏杰士德精密工业有限公司 Multifunctional zero component assembling machine
CN108655703A (en) * 2018-07-18 2018-10-16 大连智云自动化装备股份有限公司 Main beating cap indenter device
CN108673098A (en) * 2018-07-31 2018-10-19 昆山宇辰光通自动化科技有限公司 The changeable pressure head module of differential mechanism press fitting
CN109079475A (en) * 2018-09-03 2018-12-25 南昌矿山机械有限公司 A kind of multicylinder hydraulic spindle breaker spindle mounted method
CN115781254A (en) * 2023-02-02 2023-03-14 盛瑞传动股份有限公司 Hydraulic press-fitting equipment and control method thereof
CN116038321A (en) * 2022-12-28 2023-05-02 陕西法士特齿轮有限责任公司 Automatic press-fitting device and method for intermediate shaft bearing and clamp spring of main gearbox
CN116038321B (en) * 2022-12-28 2024-06-04 陕西法士特齿轮有限责任公司 Automatic press-fitting device and method for intermediate shaft bearing and clamp spring of main gearbox

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JP4752871B2 (en) * 2008-06-11 2011-08-17 株式会社デンソー Parts assembling apparatus and manufacturing method of variable valve timing mechanism
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US6327773B1 (en) * 1999-04-13 2001-12-11 John E. Rode Bearing assembly adjustable spacer and gage part adjustment
JP2003127032A (en) * 2001-10-23 2003-05-08 Aisin Seiki Co Ltd Press fitting device
CN2712535Y (en) * 2004-07-22 2005-07-27 重庆宗申技术开发研究有限公司 Engine right box bearing press-loading machine
CN200995320Y (en) * 2006-12-25 2007-12-26 重庆宗申技术开发研究有限公司 Casing bearing pressing mould of engine for motorcycle
CN101176967A (en) * 2007-12-10 2008-05-14 广州市嘉特斯机电制造有限公司 Bearing press-in device and method of use thereof
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CN201565763U (en) * 2009-11-06 2010-09-01 湖北汽车工业学院 Multi-head parallel press-mounting machine for footstep bearing or shaft sleeve
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Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104607933A (en) * 2015-02-05 2015-05-13 苏州鸿普精密模具有限公司 Pneumatic-electric hybrid press fitting mechanism of compressor inner core press fitting machine
CN106180955A (en) * 2016-08-14 2016-12-07 大连新钢液压管件有限公司 A kind of automobile pipe fitting flange pressing machine
CN107553131A (en) * 2017-09-27 2018-01-09 江苏杰士德精密工业有限公司 Multifunctional zero component assembling machine
CN108655703A (en) * 2018-07-18 2018-10-16 大连智云自动化装备股份有限公司 Main beating cap indenter device
CN108655703B (en) * 2018-07-18 2023-10-13 大连智云自动化装备股份有限公司 Main bearing cap pressure head device
CN108673098A (en) * 2018-07-31 2018-10-19 昆山宇辰光通自动化科技有限公司 The changeable pressure head module of differential mechanism press fitting
CN109079475A (en) * 2018-09-03 2018-12-25 南昌矿山机械有限公司 A kind of multicylinder hydraulic spindle breaker spindle mounted method
CN116038321A (en) * 2022-12-28 2023-05-02 陕西法士特齿轮有限责任公司 Automatic press-fitting device and method for intermediate shaft bearing and clamp spring of main gearbox
CN116038321B (en) * 2022-12-28 2024-06-04 陕西法士特齿轮有限责任公司 Automatic press-fitting device and method for intermediate shaft bearing and clamp spring of main gearbox
CN115781254A (en) * 2023-02-02 2023-03-14 盛瑞传动股份有限公司 Hydraulic press-fitting equipment and control method thereof
CN115781254B (en) * 2023-02-02 2024-04-09 盛瑞传动股份有限公司 Hydraulic press mounting apparatus and control method thereof

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