CN2445852Y - Cranshaft abrasive belt automatic polisher - Google Patents

Abstract

The utility model relates to a cam shaft abrasive belt automatic polisher. The utility model has the structure that the machine tool body is provided with a carriage saddle; the carriage saddle is provided with a cam polishing mechanism and clamping plates; the ends of the upper and the lower clamping plates are provided with central spindles, wherein, the end heads of the central spindles are outwards extended; the outwards extended ends of the central spindles are provided with polishing blocks; the two polishing blocks are connected by a tension spring; both sides of an upper and a lower arms are respectively fixed with cross arms; the end heads of the cross arms are connected with the polishing blocks by annular head screw nails; an annular head screw bolt rod is sheathed with a compressed spring. The utility model can simultaneously polish the main axle neck of the cam shaft and the surface of the cam one time. The productivity rate and the machining quality are enhanced, the production cost is largely decreased, and the utility model can polish the camshafts of different specifications.

Description

Camshaft abrasive band automatic polishing machine

The utility model relates to a kind of camshaft process equipment, particularly camshaft abrasive band automatic polishing machine.

Existing engine is shaping forming, rough turn, corase grind, heat treatment with the production technology of camshaft, the manual polishing in correct grinding back, and manual polishing efficiency is low, and is of poor quality.If change technology into automatic polishing, with all trunnions and the once polishing simultaneously of camshaft profile, can save a large amount of grinding man-hour, boost productivity greatly and improve workpiece quality, cost is greatly reduced.But do not find automatically the highly-efficient equipment of buff spindle neck and cam face simultaneously at present as yet.

The purpose of this utility model provides a kind of camshaft abrasive band automatic polishing machine, it can once polish the trunnion and the cam face of camshaft simultaneously, boost productivity greatly and workpiece quality, production cost is reduced significantly, and can process the camshaft of all size.

The purpose of this utility model realizes by following technical scheme.Camshaft abrasive band automatic polishing machine, comprise lathe bed, the main shaft headstock and tailstock are housed on lathe bed, it is characterized in that: the slide unit parts also are housed on lathe bed, comprise carriage saddle, described carriage saddle is contained on the guide rail of lathe bed, cam polishing mechanism and clamping plate are housed on carriage saddle, the cam polishing mechanism comprises, lower clip arm, mandrel, poliss, cross-arm, extension spring, stage clip has the overhanging mandrel in termination, at the overhanging end of mandrel in the end of last lower clip arm, from last, down, a left side, part on the right side one group of poliss is not housed, at poliss pressure block is housed, connects with extension spring between two polisses, make poliss press to cam face, at two sides up and down of last lower clip arm fixing cross-arm respectively, each termination at cross-arm links to each other with poliss through eye bolt, is set with stage clip on the eye bolt bar, and clamping plate are positioned at, the both sides of lower clip arm.The main shaft headstock comprise standard stop oil cylinder, arresting disc, main shaft, turn the axle, percussion mechanism, one end of main shaft is fixed with arresting disc, has recess on the outer rim of arresting disc, standard is stopped the piston external part of oil cylinder and is aimed at this recess, percussion mechanism comprises vibrations wheel, vibrations oil cylinder, stop oil cylinder, the flange of vibrations wheel is hinged with vibrations oil cylinder one end, the vibrations oil cylinder other end and body are hinged, the piston rod external part of stop oil cylinder is positioned at the block place of vibrations wheel rim, the central shaft of vibrations wheels with turn axle and link to each other, turn shaft end and be equipped with and dial in the adopted dial that extend on the main shaft.Lathe bed in the utility model, the main shaft headstock, tailstock and hydraulic pressure electric part are identical or similar with bent axle abrasive band automatic polishing machine, difference is to be positioned at the cam polishing mechanism of adorning on the carriage saddle to pass through Elastic Contact, make pressure block be pressed in cam face constantly, cooperate workpiece axial rotation and vibrations to improve its quality of finish.

In sum, the utility model adopts the poliss of spring compression, poliss is contacted with cam face all the time, but adopt axial adjustment clamping plate length, varying number, can process the camshaft of different size specification, and once machining spindle neck and cam face simultaneously, its machining accuracy height, the productivity ratio height, production cost reduces, and adapts to the processing of many kinds camshaft.

With embodiment the utility model is done concrete introduction below in conjunction with accompanying drawing.

Fig. 1 is a main body schematic diagram of the present utility model,

Fig. 2 is a main tapping shelf structure schematic diagram,

Fig. 3 is the tailstock schematic diagram,

Fig. 4 is slide unit and cam polishing machine composition,

Fig. 5 is an A place enlarged drawing among Fig. 4,

Fig. 6 is the vertical view of Fig. 5.

6 slide unit parts, 7 flushers, 8 valve stations, code name I camshaft II cam 1 Hydraulic Station 2 lathe beds, the 3 main shaft headstocks, 4 tailstocks, 5 valve stations, 9 regulator cubicles, 31 hydraulic motors, 32 standards are stopped oil cylinder 33 arresting discs 34 main shafts 35 and are turned the top 44 tailstock mandrels of 39 groups of justice of axle 36 percussion mechanism 37 driver plates, 38 chains, 41 tailstocks, 42 sleeves 43 45 oil cylinders 46 fixed heads 47 travel switches 48 pull plate 49 switch collision blocks 51 oil cylinders 52 guide rails 53 carriage saddles 54 oil cylinders 55 clamping plate 58 abrasive band feed mechanisms 60 jointed shafts 61 upper clip arms 62 lower clip arms 63 pins 64 stage clips 65 pressure blocks 66 cross-arms 67 polisses 68 extension springs 69 mandrels 70 polisses 71 fairleads 72 eye bolts 73 abrasive bands and turn to wheels 74 abrasive bands 75 slewing rollers, 76 clamping plate among the figure

Be illustrated in figure 1 as the stereogram of camshaft abrasive band automatic polishing machine, comprise lathe bed 2 and be contained in the main shaft headstock 3, tailstock 4 on the lathe bed, Hydraulic Station 1 is housed, valve station 5,8 is housed on the lathe bed 2, be used to supply with, control the work of hydraulic pressure in the lathe bed side.Flusher 7 also is housed on the lathe bed 2, and regulator cubicle 9 is equipped with in the side.Hydraulic pressure moving platform parts 6 also are housed on lathe bed 2, and shown in Fig. 4,5,6, it comprises carriage saddle 53, and it is contained on the guide rail 52 of lathe bed 2, and links to each other with its slide unit oil cylinder 51 of sending to or withdrawing from of control.Main shaft polishing mechanism (not shown) and cam polishing mechanism are housed on carriage saddle 53 and limit this mechanism and move axially the clamping plate 55 that are positioned at upper and lower jig arm both sides.The cam polishing mechanism comprises on the trunnion, lower clip arm 61,62, mandrel 69, poliss 67,70, cross-arm 66, extension spring 68, stage clip 64, at last lower clip arm 61, the overhanging mandrel in termination 69 is equipped with in 62 end, overhanging end at mandrel 69, from last, down, a left side, part on the right side one group of poliss 67 is not housed, 70, at each poliss 67, pressure block 65 is housed on 70,74 contact with cam II surface through the abrasive band, two polisses 67, connect with extension spring 68 between 70, make pressure block 65 on the poliss press to the surface of cam II, last, lower clip arm 61, on 62, down two sides are fixed with cross-arm 66 respectively, in each termination of cross-arm 66 through eye bolt 72, pin 63 and poliss 67,70 link to each other.Be set with stage clip 64 on the bar of eye bolt 72, top is with fairlead 71.Abrasive band 74 enters from the below, through slewing rollers 75, turn to wheels 73 around upward, sends through another slewing rollers.In the present embodiment, the upper and lower jig arm of trunnion polishing mechanism and the upper and lower jig arm of cam journal polishing mechanism are shared, and trunnion poliss (not shown) is in central authorities, and the cam journal poliss is contained in two sides of mandrel 69.Be illustrated in figure 6 as each trunnion polishing mechanism one group of jig arm 61,62 is arranged, on the mandrel 69 of every group of jig arm, refill two groups of cam polisses 67,70, this figure is depicted as two groups of cam polisses 67,70 and is placed in trunnion polishing mechanism two sides symmetrically, also can one group of monolateral side that is arranged in of poliss.Two sides at upper and lower arm 61,62 are equipped with clamping plate 55.As Fig. 2, when being polishing, realizes by the main shaft headstock 3 that workpiece rotates and the mechanism of vibrations, in the rotating mechanism, by hydraulic motor 31 through splined shaft 31A, pair of sprocket 38A rotates main shaft 34 through chain 38, the main shaft headstock 3 comprises that standard stops oil cylinder 32, arresting disc 33, main shaft 34, turn axle 35, percussion mechanism 36, one end of main shaft 34 is equipped with arresting disc 33, has recess 33A on the outer rim of arresting disc, the piston rod external part 32A that standard is stopped in the oil cylinder 32 aims at this recess 33A, when arresting disc 33 rotates to recess 33A aligning piston rod external part 32A, can stretch into recess 33A by external part 32A, make arresting disc 33 and main shaft 34 accurate stoppings.Percussion mechanism 36 comprises vibrations wheel 36A, vibrations oil cylinder 36B, stop oil cylinder 36C, and the flange 36D of vibrations wheel 36A is hinged with vibrations oil cylinder 36B one end, and the vibrations oil cylinder 36B other end and body are hinged; The piston rod of stop oil cylinder 36C is positioned at the block 36E place of vibrations wheel rim when stretching out; The center of vibrations wheels 36A with turn axle 35 and link to each other, turn axle 35 ends and be equipped with and dial in adopted 39 dials 37 that extend on the main shaft 34.Fig. 3 is tailstock 4 schematic diagrames, the mandrel 44 that is enclosed within the sleeve 42 is housed on tailstock 41, the flexible of mandrel 44 realized by oil cylinder 45 actions, be equipped with one top 43 on the mandrel 44 in order to support an end of this bent axle, the bent axle other end is installed on the main shaft headstock 3 (Fig. 1), and satisfies the axial vibrations condition, travel switch 47 is housed on fixed head 46, when oil cylinder 45 actions, also servo-actuated of pull plate 48, the switch collision block 49 on it also servo-actuated sends signal.As Fig. 5, when the poliss 67,70 during polishing on the upper and lower jig arm 61,62 of trunnion clamps cam II surface, under extension spring 68 effects, cam II surface is produced certain pressure, when the cam II begins to rotate, cam II surface curve is pushed pressure block 65 and poliss 67,70 to outer pendulum, extension spring 68 this moment is stretched, continue to rotate to cross the cam summit after, stage clip 68 energy discharge, make poliss 67,70 be pressed towards interior pendulum, pressure block 65 is compressing cam face always.When cam was rotated further, above-mentioned action repeated once.As Fig. 4, when after hours, jig arm oil cylinder 54 will be gone up lower clip arm 61,62 and open around jointed shaft 60, and carriage saddle 53 withdraws under 51 effects of slide unit oil cylinder, and abrasive band feed mechanism 58 is changed one section with abrasive band 74, prepares next working cycles.This polishing machine can adopt its working procedure of PLC procedure auto-control.

Claims (3)

1, camshaft abrasive band automatic polishing machine, comprise lathe bed, the main shaft headstock and tailstock are housed on lathe bed, it is characterized in that: the slide unit parts also are housed on lathe bed, comprise carriage saddle, described carriage saddle is contained on the guide rail of lathe bed, cam polishing mechanism and clamping plate are housed on carriage saddle, the cam polishing mechanism comprises, lower clip arm, mandrel, poliss, cross-arm, extension spring, stage clip has the overhanging mandrel in termination, at the overhanging end of mandrel in the end of last lower clip arm, from last, down, a left side, part on the right side one group of poliss is not housed, pressure block is housed on poliss, connects with extension spring between two polisses, make poliss press to cam face, at two sides up and down of last lower clip arm fixing cross-arm respectively, each termination at cross-arm links to each other with poliss through eye bolt, is set with stage clip on the eye bolt bar, and clamping plate are positioned at, the both sides of lower clip arm.

2, camshaft according to claim 1 abrasive band automatic polishing machine, it is characterized in that: the main shaft headstock comprises that standard stops oil cylinder, arresting disc, main shaft, turn axle, percussion mechanism, one end of main shaft is fixed with arresting disc, has recess on the outer rim of arresting disc, standard is stopped the piston external part of oil cylinder and is aimed at this recess, percussion mechanism comprises the vibrations wheel, the vibrations oil cylinder, the stop oil cylinder, the flange of vibrations wheel is hinged with vibrations oil cylinder one end, the vibrations oil cylinder other end and body are hinged, the piston rod external part of stop oil cylinder is positioned at the block place of vibrations wheel rim, the central shaft of vibrations wheels with turn axle and link to each other, turn shaft end and be equipped with and dial in the adopted dial that extend on the main shaft.

3, camshaft according to claim 1 and 2 abrasive band automatic polishing machine is characterized in that: described upper and lower jig arm is the upper and lower jig arm of trunnion polishing usefulness.

Images