SU1421501A1 - Apparatus for magnetic and abrasive working - Google Patents

Abstract

The invention relates to mechanical engineering and can be used in the finishing treatment of flat parts with a magnetically abrasive powder in a magnetic field. The aim of the invention is to simplify the design of the device. The device contains a C-shaped magnetic system with vertically mounted rotatably upper 12 and lower 13 pole cup tips, the axes of which are displaced relative to each other. The multi-position table 3 with the actuator 21 of the discrete rotation is provided with units for mounting the parts 14. Each node is made as an element 15 on which the part is positioned, the axis 16 and the flange 17 fixed to its end face. the pole tip 13 is made of the same teeth 18, 19, with which the lower pole pole liepe- rotation is given to the flange 17, the axis 16 and the element 15 with part 14. The workpiece rotates only when it enters, the machining zone. The machining of the part is carried out by a magnetically abrasive powder held at the upper pole piece. 2 Il. ".

Description

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The invention relates to mechanical engineering and can be used in the engineering, aviation, automotive industries when finishing flat parts in a magnetic field.

The purpose of the invention is to simplify the design of the device when machining flat parts by using the process magnetic flux details to set the rotation.

FIG. 1 schematically shows the proposed device; in fig. 2 shows section A-A in FIG. one.

The device consists of a bed 1 on which a C-shaped magnetic system 2 and a multi-position table 3 are mounted.

Magnetic system 2 contains two installed with the possibility of turning; cylindrical cores 4 and 5, covered by electromagnetic coils 6 and 7. Eternals 4 and 5 by means of shafts 8 and 9; associated with drives, 10 and 11 rotations. On the cores 4 and 5, respectively, the upper 12 and lower 13 pan-pole tips are fixed. The working surface: the top 12 pole tip is supplied; On the corrugations that prevent powder from being ejected from the working area, for example, of the three; coal form, made in a spiral: Archimedes. In the holes of the table 3 there are units for the installation of parts 14, each of which is made as an element 15 for accommodating a part 14 fixed on an axis 16, on the other side of the axis 16 are fixed by a flange 17 designed to transmit rotation of an axis 16 from the bottom pole tip 13. The facing ends of the flange 17 and the bottom pole tip 13 are provided with identical teeth 18 and 19 (Fig. 2), the shape and dimensions of which are calculated depending on the size and material of the workpiece.

The multi-position table 3 is mounted on the shaft 20 and is connected to a discrete-turn actuator 21. Parts 14 can be glued directly onto element 15 or onto the satellite insert (not shown) attached to element 15. In the latter case, the replacement of parts is simplified and the process is easily automated.

The axis 16 coaxially with the lower pole tip 13 is installed in the opening of the table 3, for example, on rolling bearings, which are protected from ingress of the magpolar tips, ensures a uniform surface treatment of the part.

The device works as follows.

The workpiece 14 is fixed on the elements 15. The actuator 21 of the discrete rotation of the table 3, the actuators 10 and 11 of rotation and the power of the rollers 6 and 7 are turned on. The table moves one step. In this case, the next node with the fixed part is in the zone of action of the technological 10 magnetic flux. Magnetic flux closes between teeth 18 and 19. Axis 16 with element 15 and part 14 is driven to rotate. When the relative movement of the surface of the part and the working surface of the upper pole tip 12, on which 15

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The swarm is located magnetically abrasive powder, the part is processed.

At the end of the treatment, the part is brought out of the treatment zone, to which the new part is fed. At the same time, when the part is removed from the processing zone, the technological magnetic flux must be reduced, and when a new part is introduced, it is necessary to increase when using “hard processing mode”. When machining parts in the soft mode (optical parts, semiconductor crystals, blanks of bronze disks for cutting diamonds with a thickness of 0.06-0.08 mm, etc.), it is possible not to change the magnetic flux when the table is rotated. in the case of output of the component, the braking effect of the magnetic flux in this case will be insignificant.

Claims (1)

Invention Formula A device for magnetic abrasive machining, comprising a C-shaped magnetic system with upper and lower pan-pole pieces located on vertical axes and connected with rotational drives, and a multi-position table with a discrete-turn actuator, equipped with components for mounting parts, each of which is made in the form of an axis located in the cavity of the table, on one end of which an element for positioning the part is fixed, and on the other - a flange for transmitting rotation of the axis, characterized in that, in order to simplify the design uktsii device when obrabotake flat parts, axle assembly for mounting parts disposed vertically and coaxially aligned with the lower polyusno35 45 abrasive scraper and coolant from the end of the tip, and on the sealing elements facing each other with power (not yet — to the other, the ends of the flange and the bottom pole the tip is made of the same teeth, while the lower pole tip is offset from the upper pole until its axis of rotation coincides with the middle of the annular 55 surface of the upper pole tip). The upper 12 and lower 13 pole tips are offset relative to each other so that the axis of rotation of the lower pole tip passes through the middle of the annular surface of the upper pole tip 12. This arrangement Nika. pole pieces ensures uniform surface treatment of the part. The device works as follows. The workpiece 14 is fixed on the elements 15. The actuator 21 of the discrete rotation of the table 3, the actuators 10 and 11 of rotation and the power of the rollers 6 and 7 are turned on. The table moves one step. In this case, the next node with the fixed part is in the zone of action of the technological magnetic flux. Magnetic flux closes between teeth 18 and 19. Axis 16 with element 15 and part 14 is driven to rotate. When the relative movement of the surface of the part and the working surface of the upper pole tip 12, on which 0 five 0 The swarm is located magnetically abrasive powder, the part is processed. At the end of the treatment, the part is brought out of the treatment zone, to which the new part is fed. At the same time, when the part is removed from the processing zone, the technological magnetic flux must be reduced, and when a new part is introduced, it is necessary to increase when using “hard processing mode”. When machining parts in the soft mode (optical parts, semiconductor crystals, blanks of bronze disks for cutting diamonds with a thickness of 0.06-0.08 mm, etc.), it is possible not to change the magnetic flux when the table is rotated. in the case of output of the component, the braking effect of the magnetic flux in this case will be insignificant. Invention Formula A device for magnetic abrasive machining, including a C-shaped magnetic system with upper and lower pan-pole pieces located on vertical axes and connected with rotational drives, and a multi-position table with a discrete-turn actuator, equipped with components for mounting parts each of which is made in the form of an axis located in the cavity of the table, on one end of which an element for positioning the part is fixed, and on the other - a flange for transmitting rotation of the axis, characterized in that, in order to simplify when the device is machining flat parts, the axis of the part mounting unit is located vertically and coaxially with the lower pole tip, and on facing each other the ends of the flange and the lower pole Nika. ag.2