SU511196A1 - Device for dressing a grinding wheel along an arcuate profile with adjoining areas of inverse curvature - Google Patents

Description

The invention relates to professional grinding.

Devices are known for dressing grinding wheels along an arcuate profile with adjacent section tviH of inverse curvature, made in a location installed in the housing and connected with a pivoting lever drive, interacting with restrictive stops and carrying a swinging diamond holder, held in the middle position by elastic elements fixed on the lever.

For the purpose of imparting to the arcing areas of the arcuate for / .1 a certain pa.

The proposed device is equipped with a gear pair, the drive wheel of which is mounted on a rotary shaft cooctjo on the shaft connected to the drive, and the follower wheel is on the diamond holder.

At the same time, elastic elements are made in the form of PSDUs of pinned pushers installed on both sides perpendicular to the axis of the diamond-head top and interacting with the rotors, with diamond holders and located symmetrically relative to its axle ;.

For convenience of adjusting the sizes of the arcs of the inverse curvature, the drive of the device is equipped with a screw mechanism for limiting the course. swivel lever with nut, interacting with stops located on the housing.

.Plan to provide an opportunity to edit only the areas of reverse curvature, the device is equipped with a locking screw installed in the housing that interacts with the pivoting lever.

In FIG. 1 shows the device described, the section of the plane passing

through the axis of the drive shaft and the diamond holder, when it is in the middle position; in fig. 2 is a section along A-A in FIG. 1 | in FIG. 3 is a section along BB in FIG. one; FIG. 4 is a section along the line B-B in FIG. one,

In the base 1 of the housing 2 on the support

3 mounted hollow pin / Ш 4, on the flange 5 of which the swivel lever 6 is rigidly fixed, the latter is connected to the sleeve 8 by means of an intermediate flange 7,

Claims (4)

in which, on shaft bearings 9, is located the shaft Yu of the diamond holder 11 with diamond 12 installed in the adjusting sleeve 13. On the rotary lever 6, elements of the return of the diamond holder to the medium position are mounted. They are made in the form of two spring-loaded pushers 14, 15 installed in sleeves 16, 17 and interacting with two pairs of rollers 18. 19. The rollers are mounted on the gear sector 2O, which is rigidly connected with the shaft 21 of the diamond holder by means of the key 21. The casing 2 has limiting stops 22, 23, a locking screw 24, va 25s with a screw 26 and a screw mechanism 27, the nut 28 of which is mounted for translation along the threaded portion of the mechanism 27. The drive is carried out, for example, by means of a handwheel 29 AOR. Stops 31, 32 with stoppers 33, 34 are also installed in the housing, limiting the stroke of the nut. The spindle 4 is fixed by means of a key 35 to a flag 36, which interacts with restrictive stops 22, 23. In the bore of spindle 4, a shaft 37 is mounted, at one end of which a worm wheel 38 is rigidly fixed, and the other is gear sector 39, which is in engagement with dentate sector 20. The non-pivoting lever 6 is mounted lim 40 with pressures that are viewed through the window 41 of the housing base. Editing is carried out by rotating the handwheel 29 of the shaft 25, through which the moment of rotation is transmitted to the shaft 37 by means of the screw 26 and the worm gear 38, and through the gear sectors 39 and 20 - to the shaft 1O of the diamond holder 11, due to the efforts of spring-loaded pushers 14, 15, the toothed sectors 20 and 39 do not move one relative to the other, and the swing of the diamond holder 11 around its axis does not occur. The moment of rotation is transmitted to the pivot arm 6, which begins to rotate together with the pinch 4 and the limb 4O, indicating the magnitude of the angle of rotation. The flag 36 fixed on pin 4, which is shown in FIG. 3 in the middle position, also begins to mix along the arc of a circle and, reaching one of the restrictive stops 22 or 23 /, depending on the direction of rotation, rests against it, stopping the further swing of the pivot arm 6. At the same time, diamond 12 goes through half of the middle section ka circle profile. By changing the position of the limit stops 2t, 23 and observing the position of the pivot arm on the limb 40, it is possible to adjust the dressing device depending on the predetermined value of the middle section. After limiting the movement of the pivot arm, the torque of the drive through the gear sectors 39, 2O, overcoming the resistance of the spring-loaded pushers 14, 15, is transmitted through two pairs of rollers 18, 19 to the shaft 1O of the diamond holder. Due to this, it is rocked, corresponding to the movement of the diamond in the same direction in which it occurred when the lever 6 was rotated. At the same time, one of the extreme sections of the profile is processed. Simultaneously with the rotation of the shaft 25, the nut 28 moves progressively. When it reaches one of the stops 31 and 32, the rotation of the shaft 25 stops, which will cause the shaft Yu to rest on the diamond holder. The position of the stops 31, 32 can be adjusted, the size of the sections of the inverse curvature can be adjusted. In the reverse direction, the spring-loaded pushers 14, 15, through the pairs of rollers 18, 19, return the shaft 1O of the diamond holder to the neutral position, while reversing the same section of curvature, but in the opposite direction. After it has been edited, the moment of rotation from the drive shaft 25 is transmitted to the spindle 4, since its movement in the opposite direction is not stopped by the flag 36, this shaft begins to rotate together with the rotary lever 6. At the same time, the middle section is edited. The second portion of the inverse curvature is governed similarly to the first. If necessary, straightening the middle section of the profile can be eliminated altogether by fixing the flag 36 in the middle position with a locking screw 24. Invention 1 A device for straightening the grinding wheel along the arcuate profile with the adjacent sections of the ofatt curvature, embodied as installed in the housing and associated with the pivot arm drive interacting with restrictive stops and carrying a swinging diamond holder held in the middle position by means of elastic elements fixed on the lever, ex Considering that, in order to give the adjacent areas an arcuate shape of a certain radius, the device is equipped with a gear pair, the drive wheel of which is mounted coaxially to the pivoting lever on the shaft connected to the wheel drive L and the diamond wheel. 2. Device pop. 1, with the help of the fact that the elastic elements are made in the form of podtfuzhineny pushers, installed on both sides, perpendicularly to the axis of the diamond holder and interconnect: - all the same with the potHKaivra, mounted in the housing of the holder; and located symmetrically about its axis. 3. The device according to claim 1, wherein e. in order to provide easy adjustment of the dimensions of the arcs of the aphat curvature ;, the drive is equipped with a screw mechanism for limiting the turn of the lever with a nut interacting with the stops, is located in the housing. 4. The device according to p. 1-5, of which the purpose is to make it possible to edit only the sections of the reverse curvature, it is equipped with a yoTaHOBnemibnvi in the case of a lock; this is a screw that interacts with the pivot arm. . 1 F1 / g-2 / -JJ 6-B 23 Fig.Z fb 45