CN102873398B - Radius highly synchronous and precise broaching processing method for double bearing bushes and automation device - Google Patents
Radius highly synchronous and precise broaching processing method for double bearing bushes and automation device Download PDFInfo
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- CN102873398B CN102873398B CN201210253636.8A CN201210253636A CN102873398B CN 102873398 B CN102873398 B CN 102873398B CN 201210253636 A CN201210253636 A CN 201210253636A CN 102873398 B CN102873398 B CN 102873398B
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Abstract
The invention discloses a radius highly synchronous and precise broaching processing method for double bearing bushes and an automation device on the basis of the method. The processing method comprises processes of automatic loading and feeding, clamping and positioning and broaching processing of the bearing bushes; before the clamping and positioning process, a floating preset positioning process of the double bearing bushes is added; and in the clamping and positioning process, a full floating structure clamping seat and two elastic-expansion three-point positioning pressure heads are adopted. According to the automation device, the technical difficult problem of simultaneously clamping and positioning the double bearing bushes is solved; the processing efficiency is improved; and the automation device has high precision degree and good safety performance.
Description
Technical field
The invention belongs to the precision machined technical field of bearing bush radius height, especially a kind of processing method of biplate bearing bush radius height synchronous precise broaching and automation equipment.
Background technology
In the processing technology of bearing shell: first by sheet metal raw material according to designing requirement blanking, utilize punch press blanking to be processed the bearing bush billet of semicircular in shape by diel, finally with special purpose machine tool, the lip of bearing shell, internal diameter and watt open height are processed to process further, formed finished product.By existing bearing shell height broaching lathe, bearing shell further processing processing step comprises: by blank conveying location, and mould locking processing work, built-up broach processing has carried out the retrofit of bearing shell watt open height.Current processing method exists that production efficiency is low, labour intensity is large, precision is low, the shortcoming of poor stability.
Notification number is the special purpose device that patent discloses a kind of bearing shell further processing of CN 201154404Y, it comprises vertically to vertical broaching mechanism with for being installed of spacing, locking bearing shell, positioner, and described vertical broaching mechanism is primarily of the twice broaching tool of corresponding watt mouth two end faces respectively and supporting straight line driving mechanism composition.Whole device adopts sequencing automatically to control, and decreases manual operations, ensure that the stable of processing and precision.But this device only can process a slice bearing shell at every turn, and the range of work is little, machining accuracy is low; Affect a lot of because have of bearing bush radius height precision: the mode, equipment rigidity, bearing shell surface contaminants etc. of the accuracy being installed and locating, the size of clamping force, clamp location; And the precision of the radial height of bearing shell directly has influence on the technical performance of bearing shell matching allowance, crankshaft rod system.In existing technique, even the Broaching Technology of monolithic bearing shell is all difficult to solve the problems of the technologies described above completely, cannot solve especially for the synchronous Broaching Technology of biplate bearing shell, especially two panels bearing shell be installed simultaneously and be positioned at accuracy in upper semi-circle mould be difficult to ensure and also adopt existing clamping and positioning mode to guarantee two panels bearing shell is all ideally fitted on upper semi-circle mould, precision of broaching cannot be ensured.
Summary of the invention
The technical problem to be solved in the present invention is to provide processing method and the automation equipment of the broaching of a kind of biplate bearing bush radius height synchronous precise, its first by presetly for biplate bearing shell being positioned on upper semi-circle mould, then clamping, wire pulling method, thus broach while achieving twin shaft watt, whole device realizes automatically controlling, and production efficiency is high, machining accuracy is high, security performance is good.
For solving the problems of the technologies described above, the technical scheme that the present invention takes is:
A processing method for biplate bearing bush radius height synchronous precise broaching, comprises automatic charging and feeding, clamping and positioning and the wire pulling method operation of bearing shell, and before clamping and positioning operation, set up biplate bearing shell to float preset positioning process, concrete procedure of processing is:
1. by multiple tracks damping unit set on conveyer belt by two one group, bearing shell in transmission, be sent to feeding station according to the rhythm sequential of wire pulling method operation, then by manipulator and material feeding driving mechanism, biplate bearing shell is delivered on retainer plate that support biplate bearing shell four watts of mouth end faces, that have the bullet amount of rising;
2. move to clamping and positioning station by straight line driving mechanism, retainer plate, form floating preset location structure by the upper semi-circle mould held up in upwards picking-up, retainer plate and the clamping and positioning station of driving mechanism;
3., that bullet rise by formula three-point fix clamping pressure head separate, full floating by two realizes location and the clamping of bearing shell;
4. supporting mechanism retracted downward drives retainer plate to decline, and drives broaching tool to realize wire pulling method by straight line driving mechanism simultaneously.
Based on the automation equipment of said method, comprise the executing agency of control and management mechanism and control and management mechanism controls, described executing agency comprises automatic charging and feed mechanism, biplate bearing shell and to float preset detent mechanism, clamping positioning mechanism and wire pulling method mechanism, described clamping positioning mechanism comprise the all-floating structure driven by clamping cylinder clamping seats, float the clamp that is positioned on clamping seats and the upper semi-circle mould with the biplate mating shapes of bearing shell side by side.
Described clamping seats comprises the contiguous block be connected with clamping cylinder output, the second layer rocker piece being arranged on the ground floor rocker piece on contiguous block and being arranged on ground floor rocker piece, and described second layer rocker piece is made up of two pieces of separate back-up blocks; Between contiguous block with ground floor rocker piece and ground floor rocker piece with between back-up block respectively and spring floating protruding by the square groove matched and semi-cylindrical locate.
The beneficial effect adopting technique scheme to produce is: (1) the present invention had set up the preset positioning process that floats before clamping process, first by preset location, compress biplate bearing shell be positioned on upper semi-circle mould, then to ensure the precision of locating and clamping, thus the precision of broaching is ensured; (2) full floating is adopted to support the clamp of the formula structure that rises, by coordinating of right angle groove and semi-cylindrical projection, two panels bearing shell producing balanced forces can be ensured, simultaneously every sheet bearing shell also can producing balanced forces, thus independently clamp two panels bearing shell while of realizing clamp, overcome the technical problem that existing clamp cannot clamp biplate bearing shell simultaneously; (3) the present invention is on the basis ensureing machining accuracy, at every turn can synchronous processing two panels bearing shell, improves operating efficiency; (4) the present invention is by operations such as control and management mechanism controls bearing shell automatic charging and feeding, clamping and positioning, wire pulling method, improves the precision of processing, greatly reduces hand labor intensity, enhance the security of work simultaneously.
Accompanying drawing explanation
Fig. 1 is the plan structure schematic diagram of installation diagram of the present invention;
Fig. 2 is the forward sight structural representation of installation diagram of the present invention;
Fig. 3 is the main TV structure schematic diagram that feed mechanism and retainer plate assemble;
Fig. 4 is the plan structure schematic diagram of Fig. 3;
Fig. 5 is the main TV structure schematic diagram of clamp system of the present invention;
Wherein, 1, clamp system, 2, blanking groove, 3, blanking manipulator, 4, broaching tool, 5, feed mechanism, 6, pusher cylinder, 7, second level conveyer belt, 8, plectrum, 9, bearing shell, 10, first order conveyer belt, 5-1, feeding cylinder, 5-2, feeding line slideway, 5-3, feed appliance, 5-4, retainer plate, 5-5, retainer seat, 5-6, lever, 5-7, retainer cylinder, 1-1, contiguous block, 1-2, ground floor rocker piece, 1-3, back-up block, 1-4, pressure head, 1-5, upper semi-circle mould, 1-6, insufflation channel, 1-7 semi-cylindrical is protruding.
Describe the present invention below in conjunction with accompanying drawing.
Detailed description of the invention
The invention provides the processing method of a kind of biplate bearing bush radius height synchronous precise broaching and a kind of automation equipment based on the method.Described processing method comprises automatic charging and feeding, clamping and positioning and the wire pulling method operation of bearing shell, and crucial improvement is to have set up biplate bearing shell before clamping and positioning operation and floats preset positioning process, and concrete procedure of processing is:
1. by multiple tracks damping unit set on conveyer belt by two one group, bearing shell in transmission, be sent to feeding station according to the rhythm sequential of wire pulling method operation, then by manipulator and material feeding driving mechanism, biplate bearing shell is delivered on retainer plate 5-4 that support biplate bearing shell four watts of mouth end faces, that have the bullet amount of rising; When the radial height of bearing shell is different, the retainer plate with the bullet amount of rising can ensure on the upper semi-circle mould that every sheet bearing shell all can be preset in clamping and positioning operation.It takes various ways, and such as one of them retainer plate has elasticity and higher than other three retainer plates on same datum level.
2. move to clamping and positioning station by straight line driving mechanism, retainer plate 5-4, form floating preset location structure by the upper semi-circle mould held up in upwards picking-up, retainer plate 5-4 and the clamping and positioning station of driving mechanism; Preset location structure is convenient to the accurate location of follow-up clamping and positioning operation.
3., that bullet rise by formula three-point fix pressure head separate, full floating by two realizes location and the clamping of bearing shell; Described two pressure heads are separate, avoid the wall thickness between two panels and every sheet bearing bush billet to there is error like this and cause the phenomenon that clamps loosely; Pressure head adopt bullet rise formula three-point fix clamping mode, namely utilize clamping thrust make top stressed, pressure head struts by rear right angle groove and semi-circular projection, makes inner surface of bearing bush 3 uniform stresseds.
4. supporting mechanism retracted downward drives retainer plate 5-4 to decline, and drives broaching tool and the cutter of falling interior angle to realize wire pulling method by straight line driving mechanism.
This processing method adopts full floating location structure to overcome in prior art can not clamp the technological deficiency that two panels bearing shell carries out accurate broaching simultaneously.
Based on the processing method of above-mentioned biplate bearing bush radius height synchronous precise broaching, the invention provides a kind of specific embodiment.
See Fig. 1 ~ Fig. 5, structure of the present invention comprises the executing agency of control and management mechanism and control and management mechanism controls, described executing agency comprises automatic charging and feed mechanism, biplate bearing shell and to float preset detent mechanism, clamping positioning mechanism 1 and wire pulling method mechanism, described clamping positioning mechanism 1 comprise the all-floating structure driven by clamping cylinder clamping seats, float the clamp that is positioned on clamping seats and the upper semi-circle mould 1-5 with the biplate mating shapes of bearing shell side by side.
Described clamping seats comprise be connected with clamping cylinder output contiguous block 1-1, be arranged on the ground floor rocker piece 1-2 on contiguous block 1-1 and be arranged on the second layer rocker piece of 1-2 on ground floor rocker piece, described second layer rocker piece is made up of two pieces of separate back-up block 1-3; Between contiguous block 1-1 with ground floor rocker piece 1-2 and ground floor rocker piece 1-2 with between back-up block 1-3 respectively and spring floating protruding by the square groove matched and semi-cylindrical locate.
Described clamp comprises the pressure head 1-4 being separately positioned on and locating with bearing shell inner circle on two pieces of back-up block 1-3, by 3; Between back-up block 1-3 with pressure head 1-4, by the square groove matched and semi-cylindrical, protruding and spring floating is located.
Clamping cylinder drives by pressurized cylinder supercharging.Larger clamping force realizes precision machined important guarantee, if because clamping force is inadequate, can cause the bearing shell changing of the relative positions in broaching process, broaching precision reduces greatly.The present invention adopts cylinder to clamping cylinder supercharging, not only increases clamping force, and saves taking up room of equipment.Described upper semi-circle mould 1-5 is provided with insufflation channel 1-6, before preset location structure is floated in formation, is purged described two panels bearing shell surface by insufflation channel 1-6.The dirt removal of machining accuracy may be affected, for Precision Machining creates conditions further.
The described preset detent mechanism that floats comprises and supports the retainer plate 5-4 of biplate bearing shell four watts of mouth end faces and the retainer seat 5-5 of spacing retainer plate 5-4, and wherein three retainer plates are positioned at same level, and the 4th retainer plate has elasticity and higher than other three retainer plates; Described retainer seat 5-5 forms floating preset location structure by lever 5-6 and retainer cylinder 5-7 and upper semi-circle mould 1-5.One end of described lever 5-6 is connected with retainer cylinder 5-7 power end, the other end of lever 5-6 is connected with bottom retainer seat 5-5, and using jointed shaft as fulcrum, fulcrum is less than the distance of fulcrum to retainer cylinder 5-7 to the distance of retainer seat 5-5, thus realize the amplification of picking-up power, firmly two panels bearing shell is preset on upper semi-circle mould, ready for precisely clamping.
Broaching mechanism comprises twice broaching tool 4 and the cutter of falling interior angle and the supporting straight line driving mechanism of corresponding biplate bearing shell watt mouth end face respectively.
Described automatic feed mechanism comprises vertically disposed two-stage conveyer belt, pusher cylinder 6 and material loading manipulator, is provided with the plectrum 8 for pose adjustment, is provided with pusher cylinder 6 at the end of second level conveyer belt 7 at the end of first order conveyer belt 10; Described material loading manipulator is between pusher cylinder 6 and feed mechanism 5.
Described feed mechanism comprise with the coaxial setting of clamp system 1, drive the feed appliance 5-3 with the horizontal free degree by feeding cylinder 5-1, described feed appliance 5-3 is for placing biplate bearing shell; Described feed mechanism, retainer seat 5-5 are positioned on same pedestal 5-8, and described pedestal 5-8 is synchronized with the movement by straight line driving mechanism and broaching tool 4.Drive and supporting feeding line slideway 5-2 by feeding cylinder 5-1, described feed appliance 5-3 has the free degree of horizontal direction.Described material loading robot manipulator structure comprises material grasping cylinder, be fixed on the magnetic orientation mould of material grasping cylinder piston rod end, be arranged on device for discharging on magnetic orientation mould and manipulator translation servo control mechanism; Described magnetic orientation mould is corresponding with the coaxial bearing shell side by side of biplate.Material grasping and the blowing of biplate bearing shell is realized by the stretching motion of material grasping cylinder piston rod and magnetic orientation mould; Biplate bearing shell is delivered on the feed appliance 5-3 of feed mechanism by the translation servo control mechanism by manipulator.
Feed mechanism, retainer seat are positioned on same pedestal 5-8, are synchronized with the movement with broaching tool.Under feeding cylinder 5-1 drives, feed appliance 5-3 moves to above retainer plate 5-4 along feeding line slideway 5-2; Meanwhile, under the driving of straight line driving mechanism, retainer plate 5-4 moves to immediately below upper semi-circle mould, and under the driving of retainer cylinder, the two ends of biplate bearing shell hold up by retainer plate 5-4, upper semi-circle mould forms floating preset location structure.
Executing agency also comprises automatic-blanking mechanism, described automatic-blanking mechanism comprise be arranged on the cutter of falling interior angle station after, the blanking groove 2 that is synchronized with the movement with broaching tool and blanking manipulator 3, blanking manipulator is identical with material loading robot manipulator structure.Biplate bearing shell after blanking manipulator captures processing is placed on the conveyer belt of arrangement.
The present invention is provided with control and management mechanism, connect automatic charging and feed mechanism respectively, the preset detent mechanism that floats, clamping positioning mechanism, broaching mechanism and automatic-blanking mechanism control end, and in above each operation, the photoelectric sensor putting in place and detect all is set, the input of the output termination control and management mechanism of photoelectric sensor.According to the signal of photoelectric sensor, the procedure of processing controlling each operation is as follows:
1. bearing shell is delivered to upper material level by second level conveyer belt 7 piecewise, by pusher cylinder, bearing shell is pushed into material loading manipulator station, when this station has two panels bearing shell, material loading manipulator captures above-mentioned two panels bearing shell side by side, under the driving of servo control mechanism, is placed on feed appliance 5-3;
2. feeding cylinder 5-1 drives feed appliance 5-3 to move forward to above retainer plate 5-4;
3. meanwhile, feeding cylinder 5-1 and retainer plate 5-4 together with broaching tool 4 under the driving of straight line driving mechanism linearly guide rail be synchronized with the movement, move to below upper semi-circle mould to retainer plate 5-4, retainer seat is lifted together with retainer plate by lever by retainer cylinder 5-7, is fed into by two panels bearing shell in upper semi-circle mould and forms the preset location structure that floats;
4. feeding cylinder 5-1 shrinks and drives feed appliance 5-3 back and forth movement, and then clamping cylinder drive ram is by vertically rising to jack-up, support, realize three-point fix and clamping;
5. straight line driving mechanism drives broaching tool back and forth movement, realizes the broaching of bearing shell watt mouth and the interior angle that falls;
6. after having broached, biplate bearing shell drops down onto blanking groove, and when the station that blanking groove 2 and broaching tool are synchronized with the movement to blanking manipulator 3, manipulator captures the bearing shell after processing and places on arrangement conveyer belt.
Claims (8)
1. the processing method of a biplate bearing bush radius height synchronous precise broaching, comprise automatic charging and feeding, clamping and positioning and the wire pulling method operation of bearing shell, it is characterized in that having set up biplate bearing shell before clamping and positioning operation to float preset positioning process, concrete procedure of processing is:
1. by multiple tracks damping unit set on conveyer belt by two one group, bearing shell in transmission, be sent to feeding station according to the rhythm sequential of wire pulling method operation, then by material loading manipulator and material feeding driving mechanism, biplate bearing shell is delivered on retainer plate (5-4) that support biplate bearing shell four watts of mouth end faces, that have the bullet amount of rising;
2. move to clamping and positioning station by straight line driving mechanism, retainer plate (5-4), form floating preset location structure by upwards picking-up, the retainer plate (5-4) holding up driving mechanism with the upper semi-circle mould in clamping and positioning station;
3., that bullet rise by formula three-point fix clamping pressure head separate, full floating by two realizes location and the clamping of bearing shell;
4. holding up driving mechanism retracted downward drives retainer plate (5-4) to decline, and drives broaching tool to realize wire pulling method by straight line driving mechanism simultaneously.
2. the automation equipment of biplate bearing bush radius height synchronous precise broaching according to claim 1, it is characterized in that the executing agency comprising control and management mechanism and control and management mechanism controls, described executing agency comprises automatic charging and feed mechanism, biplate bearing shell floats preset detent mechanism, clamping positioning mechanism (1) and wire pulling method mechanism, described clamping positioning mechanism (1) comprises the clamping seats of the all-floating structure driven by clamping cylinder, float the clamp be positioned on clamping seats, and with the upper semi-circle mould (1-5) of the biplate mating shapes of bearing shell side by side,
The described preset detent mechanism that floats comprises the retainer plate (5-4) of support biplate bearing shell four watts of mouth end faces and the retainer seat (5-5) of spacing described retainer plate (5-4), wherein three retainer plates are positioned at same level, and the 4th retainer plate has elasticity and higher than other three retainer plates; Described retainer seat (5-4) forms by retainer cylinder (5-7) and upper semi-circle mould (1-5) the preset location structure that floats;
Described clamping seats comprise be connected with clamping cylinder output contiguous block (1-1), be arranged on the ground floor rocker piece (1-2) on contiguous block (1-1) and be arranged on the second layer rocker piece of (1-2) on ground floor rocker piece, described second layer rocker piece is made up of two pieces of separate back-up blocks (1-3); Respectively by the square groove matched with semi-cylindrical is protruding and spring floating is located between contiguous block (1-1) with ground floor rocker piece (1-2) and between ground floor rocker piece (1-2) with back-up block (1-3).
3. the automation equipment of biplate bearing bush radius height synchronous precise according to claim 2 broaching, it is characterized in that described clamp comprise be separately positioned on described two pieces of separate back-up blocks (1-3) upper, by 3 pressure heads of locating with bearing shell inner circle (1-4); Between back-up block (1-3) with pressure head (1-4), by the square groove matched and semi-cylindrical, protruding and spring floating is located.
4. the automation equipment of biplate bearing bush radius height synchronous precise broaching according to claim 2, is characterized in that clamping cylinder drives by pressurized cylinder supercharging.
5. the automation equipment of biplate bearing bush radius height synchronous precise broaching according to claim 2, is characterized in that wire pulling method mechanism comprises the twice broaching tool (4) and the cutter of falling interior angle and supporting straight line driving mechanism distinguishing corresponding biplate bearing shell watt mouth end face.
6. the automation equipment of biplate bearing bush radius height synchronous precise broaching according to claim 2, it is characterized in that described automatic feed mechanism comprises vertically disposed two-stage conveyer belt, pusher cylinder (6) and material loading manipulator, be provided with the plectrum (8) for pose adjustment at the end of first order conveyer belt (10), be provided with pusher cylinder (6) at the end of second level conveyer belt (7); Described material loading manipulator is positioned between pusher cylinder (6) and feed mechanism (5);
Described feed mechanism comprise with clamping positioning mechanism (1) coaxial setting, drive the feed appliance (5-3) with the horizontal free degree by feeding cylinder (5-1), described feed mechanism, retainer seat (5-5) are positioned on same pedestal (5-8), and described pedestal (5-8) is synchronized with the movement by straight line driving mechanism and broaching tool.
7. the automation equipment of biplate bearing bush radius height synchronous precise according to claim 6 broaching, it is characterized in that described material loading robot manipulator structure comprise be fixed on feeding cylinder piston rod end magnetic orientation mould, be arranged on device for discharging on magnetic orientation mould and manipulator translation servo control mechanism.
8. the automation equipment of biplate bearing bush radius height synchronous precise broaching according to claim 7, it is characterized in that executing agency also comprises automatic-blanking mechanism, described automatic-blanking mechanism comprise be arranged on the cutter of falling interior angle station after, the blanking groove (2) that is synchronized with the movement with broaching tool and blanking manipulator (3).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210253636.8A CN102873398B (en) | 2012-07-23 | 2012-07-23 | Radius highly synchronous and precise broaching processing method for double bearing bushes and automation device |
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| CN201210253636.8A CN102873398B (en) | 2012-07-23 | 2012-07-23 | Radius highly synchronous and precise broaching processing method for double bearing bushes and automation device |
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| CN102873398B true CN102873398B (en) | 2015-01-28 |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103506689A (en) * | 2013-10-14 | 2014-01-15 | 新乡特种机床制造有限责任公司 | Bearing bush broaching machine clamping device |
| CN103737378A (en) * | 2013-11-27 | 2014-04-23 | 耐世特凌云驱动系统（芜湖）有限公司 | Automatic end-groove-milling device for CV outer rings |
| CN104690557B (en) * | 2015-03-13 | 2017-09-19 | 浙江畅尔智能装备股份有限公司 | A kind of automobile brake clamps the automatic production line of support |
| CN112589458B (en) * | 2019-07-17 | 2021-11-12 | 烟台大丰轴瓦有限责任公司 | Automatic processing system for bearing bush |
| CN115431075B (en) * | 2022-09-27 | 2023-10-31 | 杭州轴瓦有限公司 | Machining device and machining method for bearing bush double-sided chamfer |
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| GB844230A (en) * | 1957-09-03 | 1960-08-10 | Paul Richard Muller | Method and machine for the cutting of workpieces of semi-circular cross-section, more particularly insulating bushings for pipelines, from blocks of soft materials |
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