SK132492A3 - Device for determination and control of power feed for working of valve - Google Patents

Abstract

Valve seat machining devices have a lockable and universally pivotable swivelling ball (17) with a guide sleeve (1) in which a spindle (26) which can be rotated and axially shifted is fitted to act as a guide pin (26). The spindle (26) bears a chuck (28) in which a turning tool can be clamped at an oblique angle to the spindle axis. The device is designed to determine and monitor the feed rate of the spindle (26) on such a valve seat machining device. To this end, the device has means (3, 7, 9, 10, 22-24) movably secured on the guide sleeve (1) which hold the spindle (26) so that it is axially movable and adjusters (4-6) to determine and limit the axial movability of the spindle (26) in the feed direction in relation to the guide sleeve (1).

Description

The device for determining and checking the displacement of the At-il valve processing machine

Oblaat_ Lecniji ky

The present invention relates to a device for determining and controlling the movement of a valve seat processing machine, which can be clamped on all sides by a pivotable ball and a guide bushing which passes through the centers and in which it is rotatable. and an axially sliding spindle, acting as a guide mandrel, but under the guide sleeve, is provided with a chuck in which it is at an angle to the rear of the winding chuck:

The water valve processing machine is used to reinforce the valve seat rings of the cylinder heads of burners ₍ new, it may now be possible to insert new rings _{from the} valve seat that the Jew and the sub-glazing have formed and then turn into a compressive seat B). The machine can be used to retrofit valve seats, in cylindrical heads, to increase their accuracy and to adapt to the valve foot, but to restore the usability of the revision footsteps. Its center passes through the wires of the sleeve in which the spindle is rotatably mounted, which concurrently acts as a mandrel. By releasing the swiveling ball, it is possible to free the mandrel with the guide sleeve and the tilting appearance. to machine *

swing on all sides. The spindle carries a chuck under the guide sleeve into which the turning spindle can be clamped in the scythes relative to the spindle axis. For this purpose, the lathe also has three blades for reworking the valve seat in the valve seat rings / rings, which are mutually arranged at specified angles to each other. the valve seat is machined into the valve guide, whereby the optimum spraying is " • Some machines are equipped with an automatic centering machine. As soon as the ejection is complete, the pivoting position of the guide mandrel or any spindles is sealed, in that the pivoting ball is clamped in the machine. The machining is carried out in such a way that the spindle guide mandrel and the turning knife are rotated and the pivoting ball is lowered slowly. Rotational movement can be performed by hand or by mechanical, electrical, hydraulic or pneumatic drive means. ?

The main disadvantage of conventional atrojft for working seat / valve is in tons ;, not it be difficult to determine the depth of processing that can be very novice jon _f tÔžko DO-stick opracovávárí of successive saddles. Certainly, for example, the help is that they are guiding thorns.

If not specified, a certain marking is provided, which is then monitored during machining which may be moved. y 'retn' also about a predetermined value. Since the feedrate must be actively controlled and it is technically possible to exceed the desired feedrate, this method is quite unreliable. In particular, this is the case when a greater number of valve seats of the same cylinder head need to be renewed, with the risk that they will not be associated with a uniform value of 30%. In the lacquer case, the valve seat or the high rupture is then optionally added; The machined sodium valve has its height from one seat to the other. This adversely affects the contents of the combustion chamber corresponding to the valve by its compression values. It reads less the cylinder content and the higher the compression values are determined, thereby causing an absolute valve seat height error * ^; Most often, a fat error occurs when the engine is idling 3 'n in the difference between the unified parts of the engine in the case of the engine. decent general.

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The invention is therefore to provide a device for the setting of ^{b 1} and the shift control of the processing machines of the valve seat, which to repair the defects. In particular, it is an object of the present invention to provide a device which allows the displacement value to be predetermined and to define the end thereof so that it is not possible during the treatment of the eye.

The object of the present invention is to provide movable gripping means for carrying the axially displaceable spindle as well as adjusting means for determining the inherent axial displaceability of the spindle in the direction of the spindle. relative to the housing conductor,

The device thus enables reliable displacement determination while timely; sets a stop that does not allow the required feed rate to be exceeded · Multiple valve seats with precise feed rate values can be machined thanks to this device, so that when working in all combustion chambers it reaches exactly the same volume and not as much as yet, when this volume may slightly decrease. The varnish variables of the combustion chambers show a negative effect on modern engines 3 of high compilation and with low contents, while the contents of the combustion chambers must not be increased, the cylinder head can be ground to a certain value, which can be calculated according to the cylinder and the diameter of the vontile of the seat to be machined, and so on. , <ensure that the content increases. ^H b * '

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The invention is explained in more detail below by way of example with reference to the drawing, in which the functions of the individual parts are explained.

In FIG. 1 shows a schematically deployed valve seat processing machine with a device according to the invention in a side view prior to machining the valve seat. In FIG. 2 schematically illustrates a device 7 according to the invention on a valve seat processing machine in partial section along the spindle axis. a'í í ⁴ »

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To understand the invention, FIG. 1 shows the essential elements of a valve seat processing machine. Typically, the waffle machine M has a housing 37 through which a guide mandrel or spindle 26 passes.

P a is externally displaceable in the specified area. Conductor casing 2. J ^e inside? the box 7 is arranged centrally in the pivotable horse 17, which is clamped by two blades and clamping rings 18.

10. As a result, it can be pivoted, slidable and pivoted relative to the housing .27 in its directions pivotable in the designated area. Underneath the conductor sleeve X, the spindle 26 has a locking sleeve 2S with a fastening screw 29, in which a turning tool 30 is clamped in a longitudinal angle relative to the axis of the spindle 26. The housing 17 is a height-adjustable pre-fitting to show them. The bearing head 31, which is associated with the machine and which is provided with a foot 31, is used for machining. Initially, the head 33 is pivoted so that the valve holes are recruited. In the process of machining,

The cylinder head 31 is clamped in this housing. While the magnetic clamping plate 32 faces the cylinder head 33 in the lacquer position with the head 33, roll it as it is. Now, the valve seat width is mounted against the valve opening to be machined with its Maynell foot on the clamping plate 32, and

Its like conductor mandrel acting in spindle 36 is introduced into the tower, forcing the valve. By means of the adjusting screw 35, the height is adjusted so that it is approximately one millimeter above the surface to be machined, as is the case.

7 is shown in FIG. 1. The closure of the premium circuit is a magnetic foot 31 by the application of a magnetic force, X '^; . ~ w? ' The clamp 26 is now centered in the valve guide 3-1. G machines with an authoritative centering device are electronically contaminated by the aim of targeting a slightly selected mandrel through two intersecting directional mandrels, then the central shaft of the actuator is moved to the calculated centering position.

In an apparatus without an automatic centering device, a free mandrel is provided, which is inserted practically without clearance. After the centering of the conductor, the guide 1 is clamped in the machine by the clamping rings; Wow. 19, swivel the ball 17 so that the guide sleeve 1 is fixed in position. In this situation, the machine shown in FIG. 1. Prior to this, the knife begins to be operated, even if it has determined the displacement ruzer, thereby simultaneously defining the end of the displacement. ! and for this purpose the machine by a device for determining at check pnsmu invention, ^one that is ulužonn NND nkfjní 27 machines iŕetenu 2 O kte- - j rho Current pftsobí jí'ko drivers thorn. When viewed from the outside, the device comprises a scale 36 which is adapted ¹ 'υΓΛ to reinforce the water capsule. The lower end of this zaet-y lery has an outwardly extending edge 37, the upper side of which is intended to act as a stop. A vernier ring 6 with a scale engraved is provided for the reinforcement V '

V ' ⁷ ta on its outer perimeter. Defects in the vernier ring 6 ja ,. A modified adjusting sleeve 5 rotating thereto, which is formed as a movable sleeve and which is provided with a grooved circumference, wherein a bid nut 7 is provided above this adjusting sleeve 5, which _: f '· v'i is rotatable against the adjusting sleeve 5. On the upper strung slider nut 7 are arranged circumferentially distributed by circumferential action holding screws 1Ώ with a head, which are provided with an internal hexagon n with which the adjusting slider nut is clamped. sleeve £. In the case of rocks: the end of the spindle 26 is adapted to the adapter i

with lateral projections K1 on which the drive sleeve e is arranged axially inside the groove which ensures that the spindle 26. adapting the spindle 26 to the guide mandrel is brought into a retention motion for machining.

In the following, the operator of the device is explained, in which case it is in conjunction with FIG. 2 describes its technical construction. The sleeve nut 6 rotates from the position shown in FIG. 1, but no trigger 20. It rotated the sieve hole until the turning blade 30, fixed on the spindle 26, does not reach the work surface. This is the reference position of the turning knife 30 'by loosening the retaining screws 15 so that the adjusting sleeve 5 is rotated, so that the apron rotates in the axial direction during apolotation. After removal at the lower edge of the vernier chronicle 6 on the scale 36 of the guide bushing 16, the desired displacement dimension can be set. The ionic step 6 has a scale of 1 to 100 on its circumference, while the vernier ring moves at full speed. This makes it possible to determine the axial position perpendicular to the millimeter. Once the feed rate has been set, the retaining screws 15 are clamped to clear the feed nut 7 with the adjusting collar 5. as with the example you ouatru- ^ N, F to live a valve seat for the valve seat xroužek tlouSCce J ¹ '-R'

5.2 mm, this must e roziaór about 3.2 mm, rovnftŽ nastavifc on a scale machining 36. I.ÚS now begin, and ¹ so that the vfeteno 26 along with soustružníckýni knife 30 lists <lo rotnčního movement and working tŕíeková The thrust ring thrust ring is not thrust on the upper side of the lower edge of the guide sleeve until the thickness of the guide sleeve is 30 k. 't *! In a customized valve seat ring, a simple potoin can be mounted on the workpiece and the displacement device is in the position shown in FIG. 1, hold the valve seat ring with its outer side to strengthen the guide sleeve χ between the upper side of the lower edge 37 and Biezi sp from the rim of the new chronicle. Accordingly, the adjusting sleeve 5 is rotated so that the valve seat ring a is revealed between the lower edge of the vernier ring t1 and between the upper side of the lower edge 37 of the guide sleeve 16. Then the retaining screws 15 are tightened and the valve seat ring is pulled out of the clamping. This ensures that the correct size is fixed.

Ka fig. The function of the displacement device shown in partial section along the axis of the spindle 26 is shown _. As can be seen, the spindle 2 passes through the machine housing 27. The guide sleeve 1 is fixedly fixed in a pivotable ball 17, which is mounted between the two rings 13 and 19, and is clampable therethrough. · * ϋ-ring 2u to prevent leakage of the lubricant u so as not to get any dust between the spindle 2b and the dial bushing χ. The pivotable ball 17 can be clamped against the upper plate of the cabinets 27 by rotating the clamping bar 14 and then pressing the upper clamping ring 11 into the frame. The actual device for determining and controlling the displacement begins at the top of the guide sleeve L, which has an outwardly extending edge 37 at its lower end. The upper end of the guide sleeve is the upper upper bead. In the upper region, this reinforcement has an external thread thread on which V?>

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A threaded sleeve J is screwed on, which has an internal and external thread. A plurality of axial blind holes 38 are received in the upper sheath of the guide sleeve 38, into which the compression normalized springs 21 are inserted. These normalized springs 11 act on the ring. The threaded ring 3 is threaded against rotation with respect to the guide of the housing 11 by means of an axial bolt (not shown). The purpose, instead of the compression springs 31, is to prevent any play in the threaded connection between the conductor sleeve 11 and the threaded sleeve 3, in that the threaded connection is still under elastic loads. At the right-hand side, the cross-section of the threaded ring 3 in FIG. 2, the spindle 26 is tapered to a smaller diameter and at its upper end there is an adapter 12 in the form of a sleeve which is fixedly screwed onto the spindle 26 by means of a hexagon head 16. A screw 39 is screwed radially into the adapter 12, which is adapted to the chamfered position 40 of the spindle 26, which allows the torque to be transferred from the adapter 12 to the spindle 26. The adapter 54 has a radially projecting lateral projection 13 on its outer side. , which again serves for the transmission of twisting raomon-;

t. ' ₍ here from the drive means to the adapter 12. A threaded nut 7, which is provided with a groove on the outside of the threaded sleeve 7, is screwed onto the threaded sleeve 3 from above and by means of a glue. an intermediate ring 10, which serves for axial transmission of the spindle 26. The axial bearings 22 in the form of needle bearings are arranged above and below the intermediate ring 10.

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3., / 1-, e cages. The lower thrust bearing 3 is supported on an axial disk 23, which is mounted on the spindle 26 to be rotated together. The thrust bearing 22 above the intermediate ring 10 is in working position; in contact with another axial disc 24, which also rotates together with the spindle 26 on which it is at the end, stores the resilient cover disc 11 and the alignment disc 25 so that the angular bearings 32 are relative to the adapter 12 for the bore 16. with the head permanently under the mouth, elastic forces. As the tuft inatico 7 is turned, the thread between the threaded sleeve 3 and the threaded sleeve 1 acts on the clamping guide sleeve A. The sliding nut together with all the parts connected thereto are moved, for example, downwards. With the exception of the guide sleeve 1, all parts of the device are moved downwards in such a case. However, the spindle 26 does not need to rotate together. On this, the adjusting sleeve 5 is formed as a sliding sleeve and hangs with its upper inner edge in the cutting grooves in the outer periphery of the outer circumference of the circumferentially divided inserts 8, which are themselves raised in the axial direction by retaining screws 15 with cylindrical head and Allen at the bottom feeds the nut 7 * hot marry pŕídržnýoh šroubft 15 cylinder head provided 'irabusového the key pad 18 in the axial stunted conduction direction to the yoke ⁴ the nut 7, whereby the nustavovací sleeve 5 is clamped against the feed rate * 7 matrix, also dial sleeve , 5 ml. it is equipped with grooves. A retaining ring 4 is threaded on the housing 3 from the outside, and a pin 41 extends upward in the radial direction from the top. This pin 41 extends into an undrawn groove which is provided in the axial direction of the sleeve 5 at its inner side. When the sleeve 5 is rotated in the releasable state, it engages the pin 41 and thereby the fastening ring 4, which the threaded connection with the sleeve 3 moves the thread against the rivet and against the guide sleeve 1. either upwards or downwards. The bottom ring 6 is screwed onto the sleeve 3 with a threaded collar 6, which is secured against the fixing ring 4 in the rotated position. by means of a radial fastening ring 4, which externally acts on the vernier ring 6. This notch anchor bolt serves for zero adjustment of the degree of assembly. «Which is trimmed around its perimeter. The outer thread of the threaded sleeve 3 has a pitch such that, on the one hand, the rotation of the rotating nonionic ring 6 with them is a displacement of one millimeter.

In the axial direction, a millimeter scale is provided for the reinforcement of the guide sleeve X, which can be read at the underside of the vernier ring 6 »

It is now possible to clarify the function of the device. The uvolnônýeh or tightened screws 15 of the retaining socket head first otáčl The feed nut 7 .. Prostŕednictvlm disclosed combination and cooperation of the individual components of the TLM väeohny moving parts of the device other than the housing vodiclho JL and second ring ^8Q screw sméreín vzhôru or DOWN ,, With the exception of the spindle 26 and the rigidly connected adapter 12 so, all the components can also rotate with the feed nut 7 if the turning knife 30 does not touch the work surface. With loosened pH holding screws 15 ee, the adjusting sleeve b then rotates. by means of a pin 41, it carries a fastening ring 4 which, relative to the threaded connection with the sleeves 3, moves the thread relative to it. The non-ring ring 4 is fastened to the ring 4, which is therefore also able to rotate and coincidently move up or down. Thus, it is possible to adjust the vernier ring by turning the adjusting sleeve 5

6. Span between its underside and between the upper side of the outwardly projecting edge 37 for the reinforcement of the guide sleeve 2. defines the value of the spreading of the possible downward shear displacement, while the extension can be read for the reinforcement of the guide sleeve 1 through a non-stepped step? the ring 6 has a scale of 1 to WO on the clamping circuit. n one full revolution represents a vertical movement of one millimeter, the feedrate can be adjusted with an accuracy of one hundredth of a millimeter. Ngkottec constant to the end of the work oePizovaclch po8U- ^iC 'vu An even Pevney dotúhnon the holding screws 15 to the head váloovou, no írnž the processing machines on the valve seat pripravnn its operúci.

Claims (3)

PATENT CLAIMS 1. Apparatus for stunting and controlling the break in a valve seat processing machine having an extended, side-side pivoting ball or guide sleeve extending therethrough in a contiguous manner in which a rotatable or axially displaceable receptacle is provided as an actuator; a mandrel, with a handle <up to below the water conductor, is provided with a clamping sleeve in which it is clamped aoustruinically at an oblique angle with respect to the spindle, characterized in that there is a movably held pro-box on the guide (3). , 7, 9, 10, 22-2t), which mutate the axial sliding-spindle (26), as well as adjusting means (4-b) for determining and reducing the axial poseuvutulnonti of the spindle (20, in the slide displacement towards the guide bushing). ). 2. A method according to claim 1, characterized in that the middle (J, 7, 9, 10, 22-24) are connected through the thread of the thread to the guide sleeve (1) so that the spindle C6 ) is controlled by rotating means (3, 7, 9, 10, 22-2-1) to control 1 n axially displaceable with respect to ic (th housing (!), and that the adjusting means (4-6) are on these means (3, 7, 9, 10, 22-34) fixed in relation to them movably, such that the spindle displacement (26) looks towards the guide sleeve (1) It is set in the displaceable displacement shaft to be Lei, ju and resilient. * i j. It will cover one of the. (d, 7, 9, 19, 22-24) also includes a bush (3) with a thread which is - 14. screwed on the guide bushing (1) »and that furthermore, the 8 upper, outer edge region of the threaded bushing (3) is screwed together with a sliding nut (7) between the sliding nut (7) and the sleeve (U). A ring (10) on which both axial bearings (22) abut both sides, the lower axial bearing (22) acting at least on the axial housing (33) and the latter directly or in the middle of the housing (1). 9) on the spindle (26), 2, the upper thrust bearing (22) carries another axial function (M) and through it the spindle (26). A device according to one of the preceding claims, characterized in that the adjusting means (4-6) also comprise an adjusting sleeve (5) which is visually apparent (d, 7, 9, 10, 22). -24) rotatable and having an axial wedge groove on its inner side, into which a pin (41) extends, which is fixed together with a fastening screw (U), which is itself rotatably connected to the dies (3) by means of a thread; to which it is fastened ^; is a traveling ring (ti) which is movable above a thimble of the guide sleeve (1), which on the weld at the lower end of the otaezono is a radially outwardly protruding edge (37) which is designed as a stop for the vernier ring (6). 5. Device according to one of the foregoing claims, characterized in that the means (3, 7, 0, 10, 22-24) comprise a threaded sleeve (3) which is screwed onto the guide sleeve (1) and that the sliding nut (Ί) is fixed with the upper outer edge region of the threaded sleeve (3), with The intermediate ring (10) is axially clamped between the threaded nut (7) and between the threaded sleeve (3), one of which bears on one side of the axial bearing (22), the lower axial bearing (22) acting downwards. the axial disk (23) so that or through the intermediate sleeve (O), on the spindle (2b), while the upper thrust bearing (22) carries another axial disk (24) and thrust the spindle (26), and that the adjusting means (4- 6) comprise an adjusting sleeve (b) which is rotatable relative to the sliding nut (7) and which bears on its inner side an axial wedge groove into which a pin (41) engages, which is fixedly connected to the fixing ring (4), which is itself? rotatably connected to the threaded sleeve (3) by means of a thread and a vernier ring (6) which is movable above the thimble of the guide sleeve (1), which is limited at its lower lower end by a radial winding projecting edge (37) designed as a stop for the vernier ring (b). G. Equipment share of one of the preceding nárokň, characterized uj s c s ye that the control proatŕedky (4-6) to the Authentication stn _n omozenf posouvatelnosfci axial spindle (26) in advance with respect to the srcôru vodicíniu ponzdru (1) are vzhJodom to means (3, 7, f), 10, 22-24) which support the axially displaceable spindle (26) secured against relative rotation. Device according to one of Claims 4 to 6, characterized in that the adjusting sleeve (5) is lockable to the sliding nut (7) against rotation, by the fact that one or a plurality of inserts (8) which are arranged in axial direction from below into the peripheral region of the sliding nut (7) and are held therein by one of the cylindrical retaining bolts (15) each passing through the sliding nut (7) in axial direction; the inserts (8) having a groove in which the upper inner edge of the adjusting sleeve (5) extends, and at least the thick edge of the adjusting sleeve engages, the Chinese (5) abutting the lower edge of the feed nut (7) . .'í Ί I * ' 8. A device according to one of the hands 3 or 5, characterized in that the threaded connections can encapsulate The threads (3) with threads and the guide sleeve (1) are permanently resilient, so that 2o on the inner threaded sleeve (3) is between the upper front side of the guide sleeve (1) and between them. .m n. (2) with a plurality of standardized springs (21) inserted, which are arranged in axial blind holes (38) in the upper front side of the guide bush (1). Apparatus according to claim 8, characterized in that the ring U) is locked against the guide of the bushing (1) against rotation by means of an axial pin inserted into one of the axial blind holes (1). 38 /. 10. A device according to one of the stubs 4 or 5, characterized in that the vernier ring (6) has a scale of from 1 to 100, circumferentially adjusted on its lower edge, around its periphery. has a millimeter scale (36) whose zero point is given by the top of the edge (37) of the guide sleeve (1) · pv 3 E Z N Α Μ reference characters used: guide sleeve threaded sleeve threaded sleeve mounting ring adjusting sleeve vernier ring sliding nut insert intermediate sleeve intermediate sleeve flexible cover disc adapter lateral protrusion clamping ring retaining screw cylindrical head hexagon head bolt swivel ball (lower) clamping ring (upper) clamping ring sealing O-ring (compression) standardized spring thrust bearing thrust disc (s) axial disc alignment disc spindle housing clamping sleeve fastening bolt turning blade magnetic foot magnetic clamping plate cylinder head valve guide non-cleaning screw 1 other spindle () outwardly projecting) edge axial blind hole