SU738780A1 - Device for copying boring of shaped holes - Google Patents

Description

(54) DEVICE FOR COPIER BORING - 1. The invention relates to a machine tool building and can be used in machine tools, in particular, diamond boring machines, with a thin bore of precise shaped holes, mainly combined, representing a combination of a cylinder with some other rotation profile, including a hard one, as well as when boring nominally cylindrical holes to correct the longitudinal shape of the cross section. . Arrangements for a knitting point of shaped holes are known, for example, to a diamond boring machine, which contains a sled for a workpiece, a rotating mandrel with a resilient tool holder, which is degraded in the spindle head of the machine, connected by means of an abutment with a copier moving along the axis of the hole being machined, and also a drive , made in the form of a two-arm lever driven by a power unit, for example a hydraulic cylinder 13. FACIAL HOLES The disadvantages of the known devices are the design complexity, low voditelnost processing and low quality processing. The purpose of the invention is to simplify the construction, increase the quality and productivity of processing, as well as improve the technological capabilities of the device. For this, the device is equipped with limiters for turning the two shoulders to both sides and a copier ruler placed on the rails for contact with one plbcha of the two shoulders that is L-shaped and a hydraulic cylinder is installed between the axis of the turn of the two shoulders and the other arm of the latter. The copier ruler is made of individual elements that have the possibility of installation movement. The elastic toolholder contains an additional support for engaging with the body of the rotating mandrel.

FIG. 1 shows a general view of the device; FIG. 2 shows a mandrel & mandrel with an elastic cutter in cross-section; FIG, S is driven by a cross-section in FIG. 4, example 4

ason hole, handleable writeable device,

The device contains a revision 1, mounted on the spindle head 2, which is inserted into the machine 3, the machine 4, and the slide 5.

The rotating mandrel 1 consists of a body 6 with an elastic tool holder 7 carrying the cutter 8, an emphasis 9 and an additional stop 10, Inside the body 6 there is a copier 11, which has a reciprocating movement along the axis of the rotating mandrel. The elastic tool holder 7 is pressed against the action of the elastic forces either to the copier 11 through the stop 9 or to the body 8 through an additional, the stop 10, Copier 11 is connected to the pull 12 passing through the spindle 13. At the end of the pull 12 A clutch 15 is mounted on the clips 14 25, movably connected to the shoulder of the L-shaped lever 16 through the cherry 17 and the roller 18.

L-shaped lever 16 is installed on the axis 19, located in the bracket 2O, 30 rigidly mounted on the bridge 3 of the machine. One of the shoulders of the G-shaped lever 16 is connected with the copier ruler 21 through the roller 22. The copier ruler 21 consists of separate installation-relocated elements 22 and 24 and is fixed on the slide 5. On the bracket 20 there is a power unit 25 (for of the example, a hydraulic cylinder is shown) movably connected with a G-shaped 40 different lever 16. On iqxsHmTeEne 2O, limiters 26 and 27 are also installed, limiting the rotation of the L-shaped lever 16.

The operation of the device for boring compressed holes can be considered by the example of processing a cylindrical-conical hole under the piston pin,. The drawings of the device for copying a boring of interrupted FA-50 COMBINED holes represent the beginning of the working feed of the slide 5 to the right.

In this position, the pressure G of the oil is supplied to the piston cavity of the hydraulic cylinder 25, L-shaped spring 16 is turned back against the clock of the clock until the roller 22 contacts the upper horizontal section of the element 24 of the ruler 21, the copier 11 does not contact the stop 9. Elastic holder 7 under the action of elastic forces, they are pressed to the body 6 by an additional emphasis 10. The cutter registers the strength corresponding to the diameter of the cylindrical part of the hole

When the skid 5 moves with the workpiece and the ruler 21 to the right, the roller 22, interacting with the horizontal portion of the copier ruler 2, retains the fixed position of the L-shaped lever 16, and hence the copier 11 - the boring of the cylindrical portion a occurs.

Upon further movement of the slide right, the roller 22 under the action of the hydraulic cylinder 25 lowers along the bevel of the element 24 of the copier ruler, causing the L-shaped lever 16 to rotate counterclockwise.

The rotation of the lever 16 is converted into a translational movement of the copier 11 to the left through the roller 18, the fork 17, the clutch 15 and t gu 12. Moving to the left,. The bezel 11, with its bevel, comes into contact with the support 9 of the elastic toolholder 7 and further causes the latter to deform, as a result of which the additional support 1O is detached from the corns 6, and the cutter receives a radial movement. As a result of the addition of the longitudinal movement of the workpiece and the radial movement of the cutter, an expansion conic part is formed in with an angle of ° C.

After the part leaves the contact with the cutter, the copier 11 remains stationary at the site, since the L-shaped lever 16 is at this time pressed by the hydraulic cylinder 25 to the limit 26, and the roller 22 is between the elements 23 and 24 of the copier ruler. This section of the track of the sled 5 moves in an accelerated manner along the path.

Upon further movement (already at the working feed), the roller 22 comes into contact with the bevel on the element 23 and then, lifting it along the bevel, causes the lever 16 to turn in a clockwise direction, overcoming the oil pressure in the piston

Claims (3)

the cavity of the hydraulic cylinder 25. In this case, the copier 11 is moved to the right, and the cutter 8 in the radial direction, forming a tapering conical part d. The movement of the cutter 8 occurs g6 as long as the additional stop 10 comes into contact with the housing 6. In this position. cutter 8 describes a circle with a diameter corresponding to the cylindrical part of the hole. The copier 11 continues to move to the right until the roller 22 reaches the upper horizontal part of the member 23 of the copier line 21. After the end of boring of the cylindrical section C is completed, the oil pressure is fed into the rod cavity of the hydraulic cylinder 25, the L-shaped lever 16 turns clockwise until it contacts with the stop 27, and the roller 22 rises and comes out of contact with the copier ruler 21. After that, the slide 5 with the workpiece and the ruler 21 is accelerated moved to the left to its original position. The relationship between the radial cutter and the longitudinal re-alignment of the slide with the workpiece is expressed for the described example of the device by the formula: Spe3 Saem.tg Р-i-S- (1) where Zrez is the radial displacement of the cutter; - longitudinal movement of the part; - a corner of a bevel of the copier; - a corner of a bevel of a kopznrnry line; -distance from the axis of the ray to the center of the bend of the elastic cut of the holder; - distance from the axis of the stop 9 to the center of the bend of the elastic toolholder; - shoulder L-shaped lever, interacting with the copier; - the shoulder of the L-shaped lever interacting with a ruler. I can transform the formula (1), we can get the expression for the angle of inclination of the generatrix of the cone of the part: в- | г: "-г- &-; - г" (From the formula (2) it can be seen that changing the bevel angle of the copy line T 6 it is possible to correct the taper of the processed details without changing the angle of the copier R. In the described example of the device, the cylinder and the cone are machined with one cutter 8. However, the proposed device allows for machining with another cylinder, installed in the hard part of the body 6. In this case, an additional stop 10 of the tool holder 7 The taper cutter 8, when machining a cone, when bore a cylinder, described a circle smaller than a diameter than a diameter of a cylinder. 1. Invention 1. A device for crafted, razor-shaped fittings, for example, to an almaty machine, containing a slide for the workpiece, placed in a spindle head. machine tool rotating mandrel with an elastic tool holder, connected by means of a stop with a movable axis of the hole being machined with a cam, and also a cam actuator driven in a two-piece lever driven by The power body, for example, the hydraulic cylinder, is designed for the purpose of impairing the design, improving the quality and productivity of processing, it is equipped with limiters for turning the two shoulders on both sides and using a ram with a copy ruler for contact with one shoulder. which is made L-shaped, and the hydrocylide is installed between the spine of turning the two shoulders of its lever and the shoulder of the latter. . 2. The device according to claim 1, which is designed so that in order to expand the technological capabilities of the device, a copy line is made of individual elements that have the possibility of installation movement. 3. The device according to claim 1, which is to ensure that, in order to ensure the stability of the diameter of the cylinder-shaped part of the hole being machined, the elastic tool holder contains an additional stop for interacting with the housing of the rotating frame. Sources - information taken into account during the examination 1. USSR Copyright Certificate № 280174, cl. B 23 B 35/00, 1967. Figg