CN2813169Y

CN2813169Y - Vehicle power steering device valve pocket blind groove cutting working device

Info

Publication number: CN2813169Y
Application number: CN 200520029180
Authority: CN
Inventors: 马福生; 高兴歧
Original assignee: Individual
Current assignee: Individual
Priority date: 2005-09-12
Filing date: 2005-09-12
Publication date: 2006-09-06
Anticipated expiration: 2015-09-12

Abstract

The utility model discloses a blind groove cutting working device of a vehicle power steering device valve pocket. Two crank link mechanisms are composed of drive wheels, idle gears, driven wheels, connecting rods, pendulum rods, cutters, rocker arms and eccentric links, a cutting edge of the cutter is driven by the two crank link mechanisms, and arc blind grooves of the vehicle power steering device valve pocket are cut; the radius of curvature of an arc formed at return is larger than the radius of curvature of an arc formed at process to realize the cutter relieving motion of the return; therefore, a sealed crescent curve is formed. Because the cutter is directly driven by the second crank link mechanism of the utility model, the cutter relieving motion can be finished when return, the second crank link mechanism can move with the process of the cutter which is driven by the first crank link mechanism, and a circular curve is formed when the return of the cutter; the utility model can do high-speed operation work, and process precision is high. The two crank link mechanisms of the utility model are driven by one drive wheel to cause the utility model to have the advantages of simple structure and low cost.

Description

The blind groove cutting processing unit (plant) of automobile power steering valve pocket

Technical field

The utility model relates to the blind groove cutting processing unit (plant) of a kind of automobile power steering valve pocket.

Background technology

At present, the automobile power steering valve pocket mostly is monoblock type, and adopt the monoblock type cutting working method to process blind groove, mainly be on special purpose machine tool or machining center, to process, as the special purpose machine tool processing of producing with Australia's " Martina Bischof " or " gram ratio " company, with special purpose machine tool working (machining) efficiency height, but it is angle of valve pocket inclination that costing an arm and a leg of lathe, work in-process are processed in the heart, carries out milling with milling cutter, process an oil groove and carry out calibration again, so work in-process is processed in the heart, the one, lathe expense height, the 2nd, size is difficult to control, and working (machining) efficiency is low.

Summary of the invention

The purpose of this utility model is to solve the problem that the lathe costliness, the processing dimension that exist with the said equipment processing automobile power steering stgear valve pocket are difficult to control and working (machining) efficiency is low, and a kind of blind groove cutting processing unit (plant) of automobile power steering valve pocket that overcomes above-mentioned shortcoming is provided.

The utility model is by drag link rotatablely moving driving shaft; Be converted into the sealing crescent motion of processing blind slot cutter for same; The utility model includes driving wheel; Idle pulley; Driven pulley; Connecting rod; Fork; Cutter; Rocking arm; Eccentric ratio; Wherein, Driving wheel is connected with driving shaft; One end of connecting rod is articulated in the outer rim place of driving wheel; The axle center of driving wheel is that the distance between the outer rim place that articulates of driving shaft and connecting rod forms a crank; The other end of connecting rod is articulated in an end of fork; The other end of fork is articulated on the rocking arm; The end outside that fork is articulated in rocking arm is fixed with cutter; The sword end of cutter and the fork distance between the pivoting point on the rocking arm forms a work fork; By crank; Connecting rod; Fork; The work fork forms a toggle; This toggle under the driving of driving wheel with the downward curved motion of the sword end of cutter; Cut the blind slot of automobile power steering gear valve pocket; Idle pulley; Driven pulley is articulated on the lathe; Driving wheel; Driven pulley meshes with idle pulley respectively; Eccentric ratio is articulated in the outer rim place of driven pulley; The axle center of driven pulley and eccentric ratio form a crank between the outer rim place that driven pulley articulates; The other end of eccentric ratio is articulated in the lower end of rocking arm; The upper end of rocking arm is articulated on the lathe; This crank; Eccentric ratio; Rocking arm forms another toggle; This toggle is under the driving of driven pulley; Drive rocking arm and on device integral body when backhaul, swing to the right; Swing left during process; Thereby with cutter after having cut the blind slot that is fixed on the automobile power steering gear valve pocket on the lathe; The radius of arc curvature when the radius of curvature of its arc is greater than process when backhaul; Make the blade of cutter when backhaul, leave machined surface; It is said cutter relieving; Two toggles are when work; Form the crescent curve movement of a sealing with the blade motion of cutter; By the coupling to each rod member parameter and phase place; Can obtain difform crescent curve; Make cutting-in and the cutter relieving distance of automobile power steering gear valve pocket blind slot that a good coupling be arranged; Each blind slot process sequence of automobile power steering gear valve pocket; Controlled by NC dividing head; The utility model is owing to directly be with cutter cutter relieving when the backhaul with second toggle; Can link with first toggle band cutter process; The curve that forms during the cutter backhaul is for slick and sly; Cutter is not detained when cutter relieving; Make the utility model work that can run up; And machining accuracy height; The utility model drives two toggles with a driving wheel and consists of, and makes it simple in structure; Low cost of manufacture.

Description of drawings

Fig. 1 is structure of the present utility model and work schematic diagram.

Fig. 2 is an operation principle schematic diagram of the present utility model.

The automobile power steering valve pocket axial cutaway view of Fig. 3 for being processed by the utility model.

Fig. 4 is that automobile power steering valve pocket N-N among Fig. 3 is to cutaway view.

The specific embodiment

See also Fig. 1; Shown in Figure 2; The utility model is by drag link rotatablely moving driving shaft; Be converted into the sealing crescent motion of processing blind slot cutter for same; The utility model includes driving wheel 1; Idle pulley 2; Driven pulley 3; Connecting rod 4; Fork 5; Cutter 6; Rocking arm 7; Eccentric ratio 8; Wherein, Driving wheel 1 is connected with driving shaft A; One end of connecting rod 4 is articulated in the B of outer rim place of driving wheel 1; The axle center of driving wheel 1 is that the distance between the B of outer rim place that articulates of driving shaft A and connecting rod 4 forms a crank 9; The other end of connecting rod 4 is articulated in an end C place of fork 5; It is the D point that the other end of fork 5 is articulated on the rocking arm 7; The end outside that fork 5 is articulated in rocking arm 7 is fixed with cutter 6; The sword end 61 of cutter 6 is that E point and the distance of fork 5 between the pivoting point D on the rocking arm 7 form a work fork 10; By crank 9; Connecting rod 4; Fork 5; Work fork 10 forms a toggle; This toggle under the driving of driving wheel 1 with the sword end 61 downward curved motions of cutter 6; Cut the blind slot Y1 of automobile power steering gear valve pocket Y; Idle pulley 2; Driven pulley 3 is articulated on the lathe; Driving wheel 1; Driven pulley 3 meshes with idle pulley 2 respectively; Eccentric ratio 8 is articulated in the G of outer rim place of driven pulley 3; The axle center F of driven pulley 3 and eccentric ratio 8 form a crank 11 between the G of outer rim place that driven pulley articulates; The other end of eccentric ratio 8 is articulated in the lower end H of rocking arm 7; The upper end of rocking arm 7 is articulated in the J point on the lathe; This crank 11; Eccentric ratio 8; Rocking arm 7 forms another toggle; This toggle is under the driving of driven pulley 3; Drive rocking arm 7 and on device integral body when backhaul, swing to the right; Swing left during process; Thereby with cutter 6 behind the blind slot Y1 that has cut the automobile power steering gear valve pocket Y that is fixed on the lathe; The radius of arc curvature when the radius of curvature of its arc is greater than process when backhaul; Make the blade 61 of cutter 6 when backhaul, leave machined surface; It is said cutter relieving; Two toggles form the crescent curve movement of a sealing with blade 61 motions of cutter 6 when work.

By coupling to each rod member parameter and phase place, can obtain difform crescent curve, make cutting-in and the cutter relieving distance of the blind groove Y1 of automobile power steering valve pocket Y that a good coupling be arranged, the blind groove Y1 process sequence of each of automobile power steering valve pocket Y is controlled by NC dividing head X.

See also Fig. 2, cooperate shown in Figure 1ly, operation principle of the present utility model is as follows:

Driving shaft A drives crank 9 and rotates around the A point, drive the fork 5 that is fixed together and work fork 10 around the D spot wobble by connecting rod 4, at this moment, if the E point is regarded as the blade 61 of cutter 6, then E names a person for a particular job reciprocatingly around the D point, and this moment, the E movement locus of ordering was a simple circular arc.

Driving shaft A is except driving the above-mentioned crank and connecting rod movement by driving wheel 1, driving wheel 1 also drives the another one crank and connecting rod movement by idle pulley 2, be that driving wheel 1 orders about driven pulley 3 around the rotation of F point by idle pulley 2, thereby cutter 6 blades 61 that drive on crank 11, eccentric ratio 8, rocking arm 7 and the rocking arm 7 are that the E point is simultaneously around the J spot wobble.Just can make the circular arc that the E point is ordered around D produce an additional motion if find phase place, the radius of curvature of meniscate cutting camber line EKL is diminished, the radius of curvature of meniscate backhaul camber line LME is increased, thereby realize the cutter relieving motion of backhaul.

Y places NC dividing head X the automobile power steering valve pocket, and NC dividing head X is placed on the axle of horizontal direction digit control, so just can finish numerical control feeding, when cutting a blind groove is oil groove, automobile power steering valve pocket Y will return to the home position, at this moment NC dividing head X carries out calibration and locked NC dividing head X according to the needs of automobile power steering valve pocket Y, beginning to cut next blind groove is oil groove, so circulation can be processed the oil groove of the various steering hydraulic control valve valve pockets that number do not wait.

By coupling to each rod member parameter and phase place, can obtain difform crescent curve EKLME, make the cutting-in of the blind groove of automobile power steering valve pocket and cutter relieving distance that a good coupling be arranged.

The utility model is owing to directly drive cutter 6 cutter relieving when the backhaul with second toggle, can drive the interlock of cutter 6 processes with first toggle, the curve slyness that forms when making cutter 6 backhauls, cutter 6 is not detained when cutter relieving, make the utility model work that can run up, and machining accuracy height, the utility model drive two toggles with a driving wheel 1 and constitute, and make its simple in structure, low cost of manufacture.

Claims

1, the blind groove cutting processing unit (plant) of a kind of automobile power steering valve pocket, it is characterized in that: include driving wheel, idle pulley, driven pulley, connecting rod, fork, cutter; rocking arm; eccentric ratio; wherein; driving wheel is connected with driving shaft; an end of connecting rod is articulated in the outer rim place of driving wheel; the axle center of driving wheel is that the distance between the outer rim place that articulates of driving shaft and connecting rod forms a crank; the other end of connecting rod is articulated in an end of fork; the other end of fork is articulated on the rocking arm; the end outside that fork is articulated in rocking arm is fixed with cutter; the sword end of cutter and the fork distance between the pivoting point on the rocking arm forms a work fork, by crank; connecting rod; fork; toggle of work fork formation; Idle pulley, driven pulley are articulated on the lathe, driving wheel, driven pulley mesh with idle pulley respectively, eccentric ratio is articulated in the outer rim place of driven pulley, the axle center of driven pulley and eccentric ratio form a crank between the outer rim place that articulates on the driven pulley, the other end of eccentric ratio is articulated in the lower end of rocking arm; the upper end of rocking arm is articulated on the lathe, and this crank, eccentric ratio, rocking arm form another toggle.