CN102688955A - Hydraulic nut crimping machine - Google Patents

Hydraulic nut crimping machine Download PDF

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Publication number
CN102688955A
CN102688955A CN2012100903396A CN201210090339A CN102688955A CN 102688955 A CN102688955 A CN 102688955A CN 2012100903396 A CN2012100903396 A CN 2012100903396A CN 201210090339 A CN201210090339 A CN 201210090339A CN 102688955 A CN102688955 A CN 102688955A
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CN
China
Prior art keywords
hydraulic
valve
machine
pressure
nut
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN2012100903396A
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Chinese (zh)
Inventor
赵福江
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Guizhou Hangtai Precision Manufacturing Co Ltd
Original Assignee
Guizhou Hangtai Precision Manufacturing Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Guizhou Hangtai Precision Manufacturing Co Ltd filed Critical Guizhou Hangtai Precision Manufacturing Co Ltd
Priority to CN2012100903396A priority Critical patent/CN102688955A/en
Publication of CN102688955A publication Critical patent/CN102688955A/en
Pending legal-status Critical Current

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Abstract

The invention relates to a hydraulic nut crimping machine, which comprises a mechanical system, a hydraulic pneumatic system, and an electrical control system. The hydraulic pneumatic system includes a hydraulic pump and motor, a pressure regulating valve, a pressure gauge, a two-position four-way reversing valve, a two-position three-way air valve, a throttling valve, and an adjustable hydraulic cylinder. The hydraulic pneumatic system controls action of the two-position four-way pneumatic valve via the two-position three-way air valve, regulates working pressure via the pressure regulating valve to machine products of different specifications and adjusts the piston moving speed within the range of 0-6m/s via the throttling valve. Control/regulation of feeding/returning stroke is realized by use of a gear-screw nut fine adjustment mechanism, and a slotted nut is used for locking after adjustment. The hydraulic nut crimping machine provided by the invention improves the hydraulic system and the electrical system on the basis of an original hydraulic screw rolling machine to improve repeated positioning precision and machining precision, enlarge machining range and increase machining efficiency in a several-fold manner, and is suitable for mass production.

Description

A kind of hydraulic pressure closing in machine
Technical field
The invention belongs to mechanical manufacturing field, particularly a kind of hydraulic pressure closing in machine.
Background technology
The production and processing of self-locking nut has had decades, is punch press or old-fashioned hydraulic press yet its closing in equipment adopts always, and these two kinds of equipment can not satisfy nowadays product high accuracy, high-quality, large batch of production demand far away now.
The defective and the weak point of former punch press or old-fashioned hydraulic machine are:
1, hydraulicdirectional control valve is 80 years products, with exchanging the switching-over of 380V magnet control;
2, the hydraulicdirectional control valve dwell time is controlled by the time relay, and chronomere is 1-30S, can not realize ms control;
3, since system when exerting pressure closure, high-pressure and hydraulic oil reacts on change-over valve core, makes the spool back pressure act on electromagnet armature, thereby makes electromagnet armature be in critical attracting state;
4, fault rate is high, causes maintenance load and expense to increase greatly, and the frequent break-make of its control coil is electric during with automatic transmission, causes coil overheated and burn out morning;
Hydraulic system pressure and flowed fluctuation strengthen when 5, working, and seriously cause closing in moulding pressure and dwell time unstable;
6, former lathe repetitive positioning accuracy is low, for ± 0.02mm;
7, former machine finish is low, is 0.02mm.Cause product closing in dimension overproof, test defective.
8, adjusting function is poor.Because in nut closing in process, the size that closes up usually will be carried out some adjustment according to actual conditions, and this mode of reconditioning intermediate cavity is normally adopted in the adjusting of debit's formula, and up and down uniformity is difficult to guarantee after processing.
Summary of the invention
For overcoming above-mentioned defective, the technical problem that the present invention will solve provides a kind of pneumatic switching-over hydraulic pressure closing in machine by PLC control.
A kind of hydraulic pressure closing in machine comprises mechanical system, hydropneumatic system, electric control system, and wherein the moving system of hydraulic pressure comprises: hydraulic pump and motor, pressure regulator valve, Pressure gauge, two-position four way change valve, two-position three way air valve, choke valve, adjustable pressurized cylinder; Hydropneumatic system is regulated the product that operating pressure can be processed different size through the action of two-position three way Air Valve Control two-position four-way pneumatic operated valve by pressure regulator valve, by the throttle valve adjustment piston traveling speed, can in 0~6m/s, regulate; With the control adjustment of gear-bolt and nut micro-adjusting mechanism realization feeding and backstroke, lock with slotted nut the adjustment back.
Hydraulic pressure closing in machine of the present invention is transformed hydraulic system and electrical system on the basis of stoste pressure screw-rolling machine; Repetitive positioning accuracy, the machining accuracy of transforming back hydraulic pressure closing in machine improve greatly; The range of work enlarges, and working (machining) efficiency is doubled and redoubled, and is fit to very much requirements of large-scale production.
Description of drawings
Fig. 1 is the hydraulic schematic diagram of hydraulic pressure closing in machine of the present invention;
Fig. 2 is the electrical installation schematic diagram of hydraulic pressure closing in machine of the present invention.
The specific embodiment
This hydraulic pressure closing in machine is that hydraulic pressure screw-rolling machine (model is Z28-12.5) transformation forms; On improved workbench, load onto the self-locking nut crimping frock; Utilize the reciprocating motion of hydraulic pressure slide block to realize, use its distortion and reach the closing in purpose the exerting pressure of self-locking nut crimping position.The self-locking nut of this hydraulic pressure closing in function processing M3~M36, machining accuracy is: 0-0.015mm; Dwell time control: 0-99ms, 0-99s, 0-99 divides optional.Self-locking nut is as a kind of securing member commonly used, and major function is exactly locking, antivibration.General through with after the crimp of nut thread part, produce coupling mechanism force.This hydraulic pressure closing in machine is mainly used in close up the at last process equipment of link of this type of nut just.
This hydraulic pressure closing in machine mainly comprises mechanical system, hydropneumatic system and electric control system, and mechanical system is not done big change on the basis of stoste pressure screw-rolling machine, but changes bigger in hydraulic pressure, electrical system.
1, the hydropneumatic principle of this hydraulic pressure closing in machine:
As shown in Figure 1, the hydropneumatic system of this hydraulic pressure closing in machine comprises: hydraulic pump and motor, pressure regulator valve, Pressure gauge, two-position four-way pneumatic operated valve, two-position three way air valve, choke valve, adjustable pressurized cylinder.This hydropneumatic system is regulated the product that operating pressure can be processed different size through the action of two-position three way Air Valve Control two-position four-way pneumatic operated valve by pressure regulator valve; By the throttle valve adjustment piston traveling speed, in 0~6m/s scalable.With the control adjustment (0.01mm of unit) of gear-bolt and nut micro-adjusting mechanism realization feeding and backstroke, lock with slotted nut the adjustment back.
2, the electrical principle of this hydraulic pressure closing in machine is as shown in Figure 2, and operating principle is following:
(1) air switch that closes resets a redness mushroom button " SB1 ", press starting button " SB2 ", the KM1 adhesive, and hydraulic oil pump starts.The KM1 normally opened contact is closed, the control power connection.
(2) select to set " actuation time " and " retention time " on the PLC controller function panel, press the F1 starting, " KA1 " adhesive, the YV1 magnetic valve is switched on and is closed; Promote valve core of hydraulic reversing valve with 0.4-0.65MPa air pressure and move, the right cylinder oil-feed of hydraulic press promotes adjustable piston and is moved to the left; Stop to move to limit position, reach the dwell time after, PLC controller control " KA1 " dead electricity; YV1 closes, and valve core of hydraulic reversing valve moves right under spring action and resets, the cylinder oil-feed of a hydraulic cylinder left side; Push piston is returned to the right, stops behind the arrival backstroke, so Automatic Cycle.Stop at the backstroke terminal point by F2.
(3) realize manually control through button " SA1 ", debugging closing in size before the convenient processing.
(4) realize automatic blowing control through button " SA3 ".
This hydraulic pressure closing in machine is through comparing and demonstration, and final technology reforming scheme is:
1, the 380V electromagnet is promoted the hydraulic valve core switching-over and change the air pressure switching-over into;
2, control compressed-air actuated opening and closing with the pneumatic pilot solenoid valve of 220V;
3, change former relay electric control theory into PLC controller control principle.Select SIMENS TD400C system for use, realize manual function, time control: 0-99ms, 0-99s, 0-99 divides optional;
4, set up the automatic blowing function, part is come off automatically;
5, realize the accurate control of feed distance and backstroke with gear-bolt and nut micro-adjusting mechanism; The every lattice 0.01mm of feed distance transmission adjusts the back and locks with slotted nut.
The advantage of hydraulic pressure closing in machine of the present invention:
1, repetitive positioning accuracy is high.Process is transformed the repetitive positioning accuracy of back lathe by original ± 0.02mm, rises to ± 0.005mm;
2, machining accuracy is high.Process demonstration validations through many batches of products: self-locking nut crimping radial dimension tolerance can be controlled in the 0-0.015mm, constant product quality.
3, working (machining) efficiency is high.Transformation back working (machining) efficiency is 2-3 a times of former lathe, per hour can process 1200-1500 spare, and per tour can be processed in more than 12000 in 8 hours.
4, the range of work is big.Can process the self-locking nut of M3~M36.
5, time control accurately.Actuation time and dwell time control: 0-99ms, 0-99s, 0-99 divides optional.
6, fault rate is low.Through the big raising of improved hydraulic pressure closing in machine serviceability, reach 100,000 fault-free levels of processing, practiced thrift maintenance cost greatly.
7, the low cycle of expense is short.Totle drilling cost only needs about 2000 yuan, just can solve the defective of former lathe, and the transformation cycle has only 4 working days, has in time solved the problem that exists in producing in batches.

Claims (1)

1. hydraulic pressure closing in machine; Comprise mechanical system, hydropneumatic system, electric control system, it is characterized in that: the moving system of hydraulic pressure comprises: hydraulic pump and motor, pressure regulator valve, Pressure gauge, two-position four way change valve, two-position three way air valve, choke valve, adjustable pressurized cylinder; Hydropneumatic system is regulated the product that operating pressure can be processed different size through the action of two-position three way Air Valve Control two-position four-way pneumatic operated valve by pressure regulator valve, by the throttle valve adjustment piston traveling speed, can in 0~6m/s, regulate; With the control adjustment of gear-bolt and nut micro-adjusting mechanism realization feeding and backstroke, lock with slotted nut the adjustment back.
CN2012100903396A 2012-03-30 2012-03-30 Hydraulic nut crimping machine Pending CN102688955A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2012100903396A CN102688955A (en) 2012-03-30 2012-03-30 Hydraulic nut crimping machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2012100903396A CN102688955A (en) 2012-03-30 2012-03-30 Hydraulic nut crimping machine

Publications (1)

Publication Number Publication Date
CN102688955A true CN102688955A (en) 2012-09-26

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104454692A (en) * 2014-11-27 2015-03-25 贵州精立航太科技有限公司 Hydraulic system for thread roller
CN111037637A (en) * 2019-12-27 2020-04-21 成都正大恒业机电设备有限公司 Control circuit and control method for automatic pipe cutting machining

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2043144U (en) * 1988-09-10 1989-08-23 刘宇 Closing machine for steel cylinder
DE19654700A1 (en) * 1995-12-30 1997-11-06 Daewoo Heavy Ind Co Ltd Vehicle hydraulic system
CN2730515Y (en) * 2004-09-24 2005-10-05 苗少波 Hydraulic controller for roll-threading machine
CN1814368A (en) * 2006-02-27 2006-08-09 烟台奔腾汽车检测维修设备制造有限公司 Hydraulic and pneumatic control method and device for car body correcting machine
CN200955444Y (en) * 2006-09-20 2007-10-03 中国重型汽车集团有限公司 Diaphragm type stepless cylinder
CN201137653Y (en) * 2007-11-22 2008-10-22 吉林大学 Pneumatic liquid-control type clutch automatic control device
CN201979318U (en) * 2011-02-16 2011-09-21 常州顺昌机械科技有限公司 Gas-liquid pressure maintaining system
CN202029266U (en) * 2011-04-02 2011-11-09 宁波钜德精工机械有限公司 Pneumatic oil pressure system applied to multi-line slicing machine
CN102322455A (en) * 2011-10-11 2012-01-18 江苏卡威专用汽车制造有限公司 Oil hydraulic circuit by sequence valve and spacing Air Valve Control

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2043144U (en) * 1988-09-10 1989-08-23 刘宇 Closing machine for steel cylinder
DE19654700A1 (en) * 1995-12-30 1997-11-06 Daewoo Heavy Ind Co Ltd Vehicle hydraulic system
CN2730515Y (en) * 2004-09-24 2005-10-05 苗少波 Hydraulic controller for roll-threading machine
CN1814368A (en) * 2006-02-27 2006-08-09 烟台奔腾汽车检测维修设备制造有限公司 Hydraulic and pneumatic control method and device for car body correcting machine
CN200955444Y (en) * 2006-09-20 2007-10-03 中国重型汽车集团有限公司 Diaphragm type stepless cylinder
CN201137653Y (en) * 2007-11-22 2008-10-22 吉林大学 Pneumatic liquid-control type clutch automatic control device
CN201979318U (en) * 2011-02-16 2011-09-21 常州顺昌机械科技有限公司 Gas-liquid pressure maintaining system
CN202029266U (en) * 2011-04-02 2011-11-09 宁波钜德精工机械有限公司 Pneumatic oil pressure system applied to multi-line slicing machine
CN102322455A (en) * 2011-10-11 2012-01-18 江苏卡威专用汽车制造有限公司 Oil hydraulic circuit by sequence valve and spacing Air Valve Control

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
姬裕江等: "PLC在滚丝机电气控制系统中的应用", 《煤矿机械》 *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104454692A (en) * 2014-11-27 2015-03-25 贵州精立航太科技有限公司 Hydraulic system for thread roller
CN111037637A (en) * 2019-12-27 2020-04-21 成都正大恒业机电设备有限公司 Control circuit and control method for automatic pipe cutting machining

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Application publication date: 20120926

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