CN102873398A - 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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- CN102873398A CN102873398A CN2012102536368A CN201210253636A CN102873398A CN 102873398 A CN102873398 A CN 102873398A CN 2012102536368 A CN2012102536368 A CN 2012102536368A CN 201210253636 A CN201210253636 A CN 201210253636A CN 102873398 A CN102873398 A CN 102873398A
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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 and automation equipment of biplate bearing bush radius height synchronous precise broaching.
Background technology
In the processing technology of bearing shell: first with the sheet metal raw material according to the designing requirement blanking, utilize punch press blanking to be processed the bearing bush billet of semicircular in shape by diel, with special purpose machine tool lip, internal diameter and watt open height of bearing shell are further processed processing, formed finished product at last.By existing bearing shell height broaching lathe, bearing shell height processing technology step comprises: blank is carried the location, and mould locking processing work, built-up broach processes to finish the retrofit of bearing shell watt open height.Present processing method exists that production efficiency is low, labour intensity is large, precision is low, the shortcoming of poor stability.
Notification number is the isolated plant that the patent of CN 201154404Y discloses a kind of bearing shell height processing, it comprises vertically to vertical broaching mechanism and is used for being installed of spacing, locking bearing shell, positioner, and described vertical broaching mechanism is mainly by the twice broaching tool of two end faces of corresponding watt mouth and supporting straight line driving mechanism form respectively.Whole device adopts sequencing automatically to control, and has reduced manual operations, has guaranteed stablizing and precision of processing.But this device only can be processed a slice bearing shell at every turn, and the range of work is little, machining accuracy is low; The factor that affects the bearing bush radius height precision has a lot: the mode of the accuracy that is installed and locates, the size of clamping force, clamp location, equipment rigidity, bearing shell surface contaminants etc.; 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 the existing technique, even the Broaching Technology of monolithic bearing shell all is difficult to solve the problems of the technologies described above fully, can't solve especially for the synchronous Broaching Technology of biplate bearing shell, especially two bearing shells are installed and the accuracy that is positioned in the upper semi-circle mould is difficult to guarantee and adopt existing clamping and positioning mode can't guarantee that two bearing shells all ideally are fitted on the upper semi-circle mould, can't guarantee the precision of broaching simultaneously.
Summary of the invention
The technical problem to be solved in the present invention provides a kind of processing method and automation equipment of biplate bearing bush radius height synchronous precise broaching, its at first the biplate bearing shell is preset be positioned on the upper semi-circle mould, processing then clamps, broaches, thereby broaching when having realized two bearing shell, whole device is realized automatically control, 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:
The processing method of a kind of biplate bearing bush radius height synchronous precise broaching comprises automatic charging and feeding, clamping and positioning and the broaching manufacturing procedure of bearing shell, had set up the biplate bearing shell and float and preset positioning process before the clamping and positioning operation, and concrete procedure of processing is:
1. two one group on bearing shell in will transmitting by multiple tracks damping unit set on the conveyer belt, be sent to feeding station according to the rhythm sequential of broaching manufacturing procedure, then by manipulator and material feeding driving mechanism the biplate bearing shell delivered to and supported on the biplate bearing shell retainer plate four watts of mouth end faces, that have the bullet amount of rising;
2. move to the clamping and positioning station by straight line driving mechanism, retainer plate, form to float by the upper semi-circle mould in upwards picking-up, retainer plate and the clamping and positioning station that hold up driving mechanism and preset location structure;
3., pressure head that bullet rise by formula three-point fix clamping separate, full floating by two realized location and the clamping of bearing shell;
4. supporting mechanism shrinks downwards and drives retainer plate decline, drives broaching tool realization broaching by straight line driving mechanism simultaneously and processes.
Automation equipment based on said method, the executing agency that comprises control and management mechanism and control and management mechanism controls, described executing agency comprises that automatic charging and feed mechanism, biplate bearing shell float and presets detent mechanism, clamping positioning mechanism and broaching organisation of working, described clamping positioning mechanism comprise the all-floating structure that drives by clamping cylinder clamping seats, float be positioned on the clamping seats clamp and with the biplate upper semi-circle mould that is complementary of the shape of bearing shell side by side.
Described clamping seats comprises the contiguous block that is connected with the clamping cylinder output, be arranged on the ground floor rocker piece on the contiguous block and be arranged on second layer rocker piece on the ground floor rocker piece, and described second layer rocker piece is made of two separate back-up blocks; Between contiguous block and the ground floor rocker piece and between ground floor rocker piece and the back-up block respectively by the square groove that matches and half-cylindrical projection and spring floating location.
The beneficial effect that adopts technique scheme to produce is: (1) the present invention had set up to float before clamping operation and has preset positioning process, at first by presetting the location, compressing the biplate bearing shell is positioned on the upper semi-circle mould, the precision of then locating and clamping with assurance, thereby the precision of assurance broaching; (2) adopt full floating to support the clamp of the formula structure that rises, by cooperating of right angle groove and half-cylindrical projection, can guarantee two bearing shell producing balanced forces, simultaneously every bearing shell also can producing balanced forces, thereby realize that clamp independently clamps respectively two bearing shells simultaneously, has overcome the technical problem that existing clamp can't clamp the biplate bearing shell simultaneously; (3) the present invention is guaranteeing on the basis of machining accuracy, but each two bearing shells of synchronous processing have improved operating efficiency; (4) the present invention has improved the precision of processing by operations such as control and management mechanism controls bearing shell automatic charging and feeding, clamping and positioning, broaching processing, greatly reduces hand labor intensity, has strengthened simultaneously the security of work.
Description of drawings
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 of feed mechanism and retainer plate assembling;
Fig. 4 is the plan structure schematic diagram of Fig. 3;
Fig. 5 is the main TV structure schematic diagram of clamp mechanism of the present invention;
Wherein, 1, clamp mechanism, 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, the half-cylindrical projection of 1-7.
Describe the present invention below in conjunction with accompanying drawing.
The specific embodiment
The invention provides the processing method of a kind of biplate bearing bush radius height synchronous precise broaching and based on a kind of automation equipment of the method.Described processing method comprises automatic charging and feeding, clamping and positioning and the broaching manufacturing procedure of bearing shell, and crucial improvement is to have set up the biplate bearing shell and floats and preset positioning process before the clamping and positioning operation, and concrete procedure of processing is:
1. two one group on bearing shell in will transmitting by multiple tracks damping unit set on the conveyer belt, be sent to feeding station according to the rhythm sequential of broaching manufacturing procedure, then by manipulator and material feeding driving mechanism the biplate bearing shell delivered to and supported on the biplate bearing shell retainer plate 5-4 four watts of mouth end faces, that have the bullet amount of rising; When the radial height of bearing shell not simultaneously, the retainer plate with the bullet amount of rising can guarantee that every bearing shell all can be preset on the upper semi-circle mould in the clamping and positioning operation.It takes various ways, has elasticity and is higher than other three retainer plates on same datum level such as one of them retainer plate.
2. move to the clamping and positioning station by straight line driving mechanism, retainer plate 5-4, form to float by the upper semi-circle mould in upwards picking-up, retainer plate 5-4 and the clamping and positioning station that hold up driving mechanism and preset location structure; Preset location structure and be convenient to the accurate location of follow-up clamping and positioning operation.
3., pressure head that bullet rise by formula three-point fix separate, full floating by two realized location and the clamping of bearing shell; Described two pressure heads are separate, avoid like this wall thickness between two and the every bearing bush billet to have error and cause clamping not firm phenomenon; Pressure head adopt bullet to rise mode that the formula three-point fix clamps is namely utilized to clamp thrust and makes the top stressed, with right angle groove and semi-circular projection pressure head is strutted afterwards, makes 3 uniform stresseds of inner surface of bearing bush.
4. supporting mechanism shrinks downwards and drives retainer plate 5-4 decline, drives broaching tool by straight line driving mechanism and processes with the cutter of falling interior angle realization broaching.
This processing method adopts the full floating location structure to overcome can not clamp the technological deficiency that two bearing shells carry out accurate broaching simultaneously in the prior art.
Processing method based on above-mentioned biplate bearing bush radius height synchronous precise broaching the invention provides a kind of specific embodiment.
Referring to Fig. 1 ~ Fig. 5, the executing agency that comprises control and management mechanism and control and management mechanism controls in the structure of the present invention, described executing agency comprises that automatic charging and feed mechanism, biplate bearing shell float and presets detent mechanism, clamping positioning mechanism 1 and broaching organisation of working, described clamping positioning mechanism 1 comprise the all-floating structure that drives by clamping cylinder clamping seats, float be positioned on the clamping seats clamp and with the biplate upper semi-circle mould 1-5 that is complementary of the shape of bearing shell side by side.
Described clamping seats comprises the contiguous block 1-1 that is connected with the clamping cylinder output, the second layer rocker piece that is arranged on the ground floor rocker piece 1-2 on the contiguous block 1-1 and is arranged on 1-2 on the ground floor rocker piece, and described second layer rocker piece is made of two separate back-up block 1-3; Between contiguous block 1-1 and the ground floor rocker piece 1-2 and between ground floor rocker piece 1-2 and the back-up block 1-3 respectively by the square groove that matches and half-cylindrical projection and spring floating location.
Described clamp comprise be separately positioned on two back-up block 1-3 upper, by 3 pressure head 1-4 that locate with the bearing shell inner circle; Between back-up block 1-3 and the pressure head 1-4 by the square groove that matches and half-cylindrical projection and spring floating location.
Clamping cylinder drives by the pressurized cylinder supercharging.Larger clamping force is to realize precision machined important guarantee, if because clamping force is inadequate, can cause the bearing shell changing of the relative positions in the broaching process, and the broaching precision reduces greatly.The present invention adopts cylinder to the clamping cylinder supercharging, has not only increased clamping force, and has saved taking up room of equipment.Described upper semi-circle mould 1-5 is provided with insufflation channel 1-6, form to float preset location structure before, by insufflation channel 1-6 described two bearing shell surfaces are purged.May affect the dirt removal of machining accuracy, for Precision Machining further creates conditions.
The described unsteady detent mechanism that presets comprises the retainer plate 5-4 of four watts of mouth end faces of support biplate bearing shell 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 be higher than other three retainer plates; Described retainer seat 5-5 forms to float by lever 5-6 and retainer cylinder 5-7 and upper semi-circle mould 1-5 and presets location structure.The 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 retainer seat 5-5 bottom, and with jointed shaft as fulcrum, fulcrum to the distance of retainer seat 5-5 less than the distance of fulcrum to retainer cylinder 5-7, thereby realize the amplification of picking-up power, firmly two bearing shells are preset on the upper semi-circle mould, ready for precisely clamping.
Broaching mechanism comprises respectively twice broaching tool 4 and the cutter of falling the interior angle and the supporting straight line driving mechanism of corresponding biplate bearing shell watt mouth end face.
Described automatic feed mechanism comprises vertically disposed two-stage conveyer belt, pusher cylinder 6 and material loading manipulator, is provided with the plectrum 8 of adjusting for attitude at the end of first order conveyer belt 10, is provided with pusher cylinder 6 at the end of second level conveyer belt 7; Described material loading uses manipulator between pusher cylinder 6 and feed mechanism 5.
Described feed mechanism comprise and clamp mechanism 1 coaxial setting, drive the feed appliance 5-3 with horizontal free degree by feeding cylinder 5-1, described feed appliance 5-3 is used for placing the biplate bearing shell; Described feed mechanism, retainer seat 5-5 are positioned on the 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 with comprise the material grasping cylinder in the robot manipulator structure, be fixed on material grasping cylinder piston rod end the magnetic orientation mould, be arranged on device for discharging and manipulator translation servo control mechanism on the magnetic orientation mould; Described magnetic orientation mould is corresponding with the coaxial side by side bearing shell of biplate.By the stretching motion of material grasping cylinder piston rod and material grasping and the blowing of magnetic orientation mould realization biplate bearing shell; Translation servo control mechanism by manipulator is delivered to the biplate bearing shell on the feed appliance 5-3 of feed mechanism.
Feed mechanism, retainer seat are positioned on the same pedestal 5-8, are synchronized with the movement with broaching tool.Under feeding cylinder 5-1 drives, above feed appliance 5-3 moves to retainer plate 5-4 along feeding line slideway 5-2; Meanwhile, under the driving of straight line driving mechanism, retainer plate 5-4 moves under the upper semi-circle mould, under the driving of retainer cylinder, retainer plate 5-4 with the two ends of biplate bearing shell hold up, the upper semi-circle mould forms to float and presets location structure.
Executing agency also comprises automatic-blanking mechanism, and described automatic-blanking mechanism comprises the blanking groove 2 that is arranged on after the cutter of falling the interior angle station, is synchronized with the movement with broaching tool and blanking with manipulator 3, and blanking uses robot manipulator structure identical with manipulator and material loading.Biplate bearing shell after blanking is processed with the manipulator crawl is placed on the conveyer belt of arrangement usefulness.
The present invention is provided with control and management mechanism, connect respectively automatic charging and feed mechanism, float and preset the control end of detent mechanism, clamping positioning mechanism, broaching mechanism and automatic-blanking mechanism, and the photoelectric sensor that puts in place and detect, the input of the output termination control and management mechanism of photoelectric sensor are set all in above each operation.According to the signal of photoelectric sensor, the procedure of processing of controlling each operation is as follows:
1. second level conveyer belt 7 is delivered to upper material level piecewise with bearing shell, by the pusher cylinder bearing shell is pushed into material loading manipulator station, when this station has two bobbin watt-hours, material loading grasps above-mentioned two bearing shells side by side with manipulator, under the driving of servo control mechanism, be placed on the feed appliance 5-3;
2. feeding cylinder 5-1 drives feed appliance 5-3 and moves forward to retainer plate 5-4 top;
3. meanwhile, feeding cylinder 5-1 and retainer plate 5-4 are synchronized with the movement along line slideway under the driving of straight line driving mechanism together with broaching tool 4, move to upper semi-circle mould below to retainer plate 5-4, retainer cylinder 5-7 lifts the retainer seat by lever together with retainer plate, two bearing shells have been sent into formed the unsteady location structure that presets in the upper semi-circle mould;
4. feeding cylinder 5-1 shrinks and drives feed appliance 5-3 back and forth movement, and then the clamping cylinder drive ram is by vertically rising, realize three-point fix and clamping to jack-up, support;
5. straight line driving mechanism drives the broaching tool back and forth movement, realizes the broaching of bearing shell watt mouth and the interior angle that falls;
6. after broaching was finished, the biplate bearing shell dropped down onto blanking groove, and when blanking groove 2 and broaching tool are synchronized with the movement to blanking during with the station of manipulator 3, the bearing shell after the manipulator crawl processing is placed arrangement with on the conveyer belt.
Claims (10)
1. the processing method of biplate bearing bush radius height synchronous precise broaching, the automatic charging and feeding, clamping and positioning and the broaching manufacturing procedure that comprise bearing shell, it is characterized in that having set up the biplate bearing shell and float and to preset positioning process before the clamping and positioning operation, concrete procedure of processing is:
1. two one group on bearing shell in will transmitting by multiple tracks damping unit set on the conveyer belt, be sent to feeding station according to the rhythm sequential of broaching manufacturing procedure, then the biplate bearing shell delivered on the support biplate bearing shell retainer plate four watts of mouth end faces, that have the bullet amount of rising (5-4) with manipulator and material feeding driving mechanism by material loading;
2. move to the clamping and positioning station by straight line driving mechanism, retainer plate (5-4), form to float by the upper semi-circle mould in upwards picking-up, retainer plate (5-4) and the clamping and positioning station that hold up driving mechanism and preset location structure;
3., pressure head that bullet rise by formula three-point fix clamping separate, full floating by two realized location and the clamping of bearing shell;
4. hold up driving mechanism and shrink drive retainer plate (5-4) decline downwards, realize broaching by straight line driving mechanism driving broaching tool simultaneously and process.
2. based on the automation equipment of the processing method of biplate bearing bush radius height synchronous precise broaching, it is characterized in that comprising the executing agency of control and management mechanism and control and management mechanism controls, described executing agency comprises automatic charging and feed mechanism, the biplate bearing shell floats and presets detent mechanism, clamping positioning mechanism (1) and broaching organisation of working, described clamping positioning mechanism (1) comprises the clamping seats of the all-floating structure that drives by clamping cylinder, the unsteady clamp that is positioned on the clamping seats, and with the biplate upper semi-circle mould (1-5) that is complementary of the shape of bearing shell side by side.
3. the automation equipment of biplate bearing bush radius height synchronous precise according to claim 2 broaching, it is characterized in that described clamping seats comprises the contiguous block (1-1) that is connected with the clamping cylinder output, the second layer rocker piece that is arranged on the ground floor rocker piece (1-2) on the contiguous block (1-1) and is arranged on (1-2) on the ground floor rocker piece, described second layer rocker piece is made of two separate back-up blocks (1-3); Between contiguous block (1-1) and the ground floor rocker piece (1-2) and between ground floor rocker piece (1-2) and the back-up block (1-3) respectively by the square groove that matches and half-cylindrical projection and spring floating location.
4. the automation equipment of biplate bearing bush radius height synchronous precise according to claim 3 broaching, it is characterized in that described clamp (1-4) comprise be separately positioned on described two separate back-up blocks (1-3) upper, by 3 pressure heads (1-4) of locating with the bearing shell inner circle; Between back-up block (1-3) and the pressure head (1-4) by the square groove that matches and half-cylindrical projection and spring floating location.
5. the automation equipment of biplate bearing bush radius height synchronous precise broaching according to claim 2 is characterized in that clamping cylinder drives by the pressurized cylinder supercharging.
6. the automation equipment of biplate bearing bush radius height synchronous precise according to claim 2 broaching, it is characterized in that the described unsteady detent mechanism that presets comprises the retainer plate (5-4) of four watts of mouth end faces of support biplate bearing shell and the retainer seat (5-5) of spacing retainer plate (5-4), wherein three retainer plates are positioned at same level, and the 4th retainer plate has elasticity and be higher than other three retainer plates; Described retainer seat (5-4) forms to float by retainer cylinder (5-7) and upper semi-circle mould (1-5) and presets location structure.
7. the automation equipment of biplate bearing bush radius height synchronous precise according to claim 2 broaching, the mechanism that it is characterized in that broaching comprises respectively twice broaching tool (4) and the cutter of falling the interior angle and the supporting straight line driving mechanism of corresponding biplate bearing shell watt mouth end face.
8. the automation equipment of biplate bearing bush radius height synchronous precise according to claim 7 broaching, 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) of adjusting for attitude 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 is positioned between pusher cylinder (6) and the feed mechanism (5) with manipulator;
Described feed mechanism comprises and feed appliance (5-3) the coaxial setting of clamp mechanism (1), that driving has the horizontal free degree by feeding cylinder (5-1), described feed mechanism, retainer seat (5-5) are positioned on the same pedestal (5-8), and described pedestal (5-8) is synchronized with the movement by straight line driving mechanism and broaching tool.
9. the automation equipment of biplate bearing bush radius height synchronous precise according to claim 8 broaching is characterized in that described material loading is with comprising the magnetic orientation mould that is fixed on feeding cylinder piston rod end in the robot manipulator structure, being arranged on device for discharging and manipulator translation servo control mechanism on the magnetic orientation mould.
10. the automation equipment of biplate bearing bush radius height synchronous precise according to claim 9 broaching, it is characterized in that executing agency also comprises automatic-blanking mechanism, described automatic-blanking mechanism comprises that the blanking groove (2) that is arranged on after the cutter of falling the interior angle station, is synchronized with the movement with broaching tool and blanking are with 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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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN104690557A (en) * | 2015-03-13 | 2015-06-10 | 浙江畅尔智能装备股份有限公司 | Automatic production line for automobile brake caliper support |
| CN112589458A (en) * | 2019-07-17 | 2021-04-02 | 烟台大丰轴瓦有限责任公司 | Automatic processing system for bearing bush of diesel engine |
| CN115431075A (en) * | 2022-09-27 | 2022-12-06 | 杭州轴瓦有限公司 | Machining device and machining method for double-sided chamfer of bearing bush |
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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 |
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| CN104690557A (en) * | 2015-03-13 | 2015-06-10 | 浙江畅尔智能装备股份有限公司 | Automatic production line for automobile brake caliper support |
| CN112589458A (en) * | 2019-07-17 | 2021-04-02 | 烟台大丰轴瓦有限责任公司 | Automatic processing system for bearing bush of diesel engine |
| CN115431075A (en) * | 2022-09-27 | 2022-12-06 | 杭州轴瓦有限公司 | Machining device and machining method for double-sided chamfer of 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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|---|---|
| CN102873398B (en) | 2015-01-28 |
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