SU1488081A1 - Rotor for knurling cylindrical articles - Google Patents

Abstract

The invention relates to the processing of metals by pressure, in particular to the manufacture of articles having the form of rotation bodies, for example, rotors. The purpose of the invention is to improve the quality of products by increasing their geometric accuracy. The workpiece 19 is mounted on rotatable stops between rotating in one direction and around its axis rolls 3, support rolls 6 and knurling rolls 5. Workpiece 19 is gripped by rotating 5 and support 6 rolls and when turning the knurling positions 4 is gradually pressed against roll 3 up to the deformation zone. In the deformation zone, rolling of the workpiece 19 is carried out due to the maximum eccentricity of the roll 3. With further rotation of the roll 3 relative to the rolls 5 and 6, the value of the eccentricity decreases, and the rolling process stops. The possibility of rotation of the workpiece 19 in the rolls 5 and 6 and the uniform deformation of the workpiece 19 during knurling, as well as the ability to adjust the rolls 5 and 6 by installing them in eccentric sleeves, improves the quality of the products. 1 hp ff, 8 ill.

Description

 deformations made figs.

The invention relates to the processing of metals by pressure.

The purpose of the invention is to improve the quality of products by increasing their geometric accuracy.

FIG. 1 shows a device, a longitudinal section; in fig. 2 shows section A-A in FIG. one; in fig. 3 — rotor rolling position, longitudinal section; in fig. 4 shows a section BB in FIG. 3; in fig. 5 shows a section B-B in FIG. 3; in fig. 6 - section G-Y in FIG. 3; in fig. 7 is a section d-d in fig. five; in fig. 8 is a diagram of the operation of the device.

The rotor contains a base 1 and a drive shaft 2 vertically disposed therein with a roller 3. The rollers 3 are made smooth and mounted eccentrically to the shaft 2. The knurling positions 4 are placed on the periphery of the shaft 2 (FIGS. 1 and 3), each of which contains two driving roll - rolling roll 5 and the support roll 6 (Fig. 5).

Both rolls 5 and 6 of position 4 of the knurling are installed in eccentric adjustable sleeves 7 (FIG. 7), whose position is fixed.

Between the eccentric bushings 7 of the knurling 5 and the support 6 there is a spring-loaded pusher 8 of the rolled products (FIGS. 1, 3 and 4), cooperating with the cam 9 fixed on the base 1 (FIG. 1). The shaft 2 is mounted in bearing supports and is driven into rotation through the conventionally shown gearbox 10. A drum 11 is mounted on the lower part of shaft 2, which is placed inside a stationary cup 12 fixed in a frame 13. Sliders 15 are placed in vertical guides 14 of the drum 11, interacting with a fixed spatial slotted cam 16 mounted between the cup 12 and the drum 11. Each slider 15 is articulated with a spring-loaded rod 17 of the corresponding position 4 of the knurling, at the end of which a recess 18 is made under the article-caster Patent Application 19.

Above the shaft 2 is mounted a block of disks 20 and 21 with recesses 22 for setting the position 4 of the knurling, and above them a sleeve 23 rigidly connected to the frame 24. The lower part of the sleeve 23 is made eccentric with respect to the shaft 2 (due to different wall thickness This part of the sleeve 23) and with its rotatably mounted roller 3 is also eccentric to shaft 2 (Figs. 1 and 8). The roller 3 is kinematically connected with the gears block 26 and 27, which is loosely mounted on the concentric shaft 2 part of the sleeve 23. The upper gear wheel 26 of the block is driven (not shown), and the lower wheel 27 drives the knurled roll 5 and the support roll 6 of each position 4 knurling.

0

five

Each knurling position 4 (Fig. 3) is a removable body 28 in which two axes 29 and two rollers 30 are mounted (Figs 6 and 7). On each axis 29 mounted intermediate gear wheel 31, interacting with the corresponding toothed wheel 32 mounted on the roller 30.

Under the wheel 32 on one of the rollers 30 is rigidly fixed shaped knurled roller 5 (Fig. 3), and on the other - a smooth support roller 6 (Fig. 7). The rollers 39 themselves are mounted each in an eccentric bushing 7 provided with two (one under the other) levers 33. The levers 33 are provided with coaxial bores 34, which pass into the open groove 35 (Figures 5 and 7). Between the levers 33 of each of the two sleeves 7 is placed a cylindrical liner 36, the pins 37 of which are inserted into the holes 34 of the levers 33. The diameter of the pins 37 is smaller than the diameter of the liner 36, and they have two parallel cuts on the sides. A screw hole 38 is made in each of the two liners 36, a screw 39 is screwed into these holes 38, which adjusts the position of the eccentric bushings 7 by turning them, and at the same time the positions of the rolls 5 and 6. This adjustment of the bushings 7 is possible because the inserts 36 mounted in holes 34 with the possibility of rotation (in small limits).

A top in the center of the body 28 of the knurling position 4 is mounted for rotation and reciprocating up and down spring-loaded stop 40 (Fig. 3 and 6), which in the free position is at the level of the lower edge of the rolls 5 and 6 (Fig. 1). Bottom opposite the stop 40 in the guide 41 is placed the rod 17, the upper part 42 of which is made with the possibility of rotation (Fig. 3).

The spring-loaded pusher 8 of the knurling position 4 is installed in such a way that without the action of the cam 9 is out of contact with the product 19. The interaction of the roller 8 with the cam 9 takes place via the roller 43 mounted on the lever 44.

The knurling rotor operates as follows.

When the drive is turned on, the shaft 2 (Fig. 1), and with it the drum 11 of the knurling position 4, comes into rotation. Regardless, a roll 3 and rolls 5 and 6 of all knurling positions are driven into rotation through the gears block 26 and 27. The next tick-borne gripper 45 of the preceding transport rotor (not shown) feeds product 19 into one of the 4 knurling positions 4 for coverage 46. The rod 17 of this position 4 rises, moves product 19 along guide 41 and sets it between rollers 5 and 6 and roller 3. In the course of lifting the product 19 presses the stop 40, which further

The invention makes it possible to improve the quality of products by increasing out of geometrical accuracy, achieved due to the possibility of adjusting the support and knurling rolls installed in eccentric bushings.

Claims (2)

1. Rotor knurling cylindrical products fixes the position of the product 19 on top (Fig. 1 and 3). The principle of operation of the rotor is based on the fact that the center of rotation of the knurling positions 4 and the center of rotation of the roll 3 do not coincide (Fig. B.). In the feed zone of the product 19 to the knurling position 4, the gap between the rollers 5 and 6 and the roller 3 is larger than the diameter of the product 19, and it does not contact the roller 3. As this knurling position 4 turns, the rolls 5 and 6 approach the roller 3. containing mounted on the base When entering the next position 4 roll-drive shaft, freely mounted on In the deformation zone, the product 19 is in contact with a drive roller, kinematically connected with rollers 5 and 6, and with roller 3, driven with a common drive, and located and begins to rotate. In the center of the zone of defor- mation outside of the drive roll, the roll position 5 and position b 4 of the knurling on j c, which are mounted in cases so many approach rolls 3 that the protrusions The roll 5 rolls into the product 19. As the product 19 itself rotates, but at the same time, its position is strictly fixed, a high-quality knurling of the required profile on the surface 20 of the product quality is ensured by increasing it from the geo-section 19. After that, the rolls 5 and gradual metric precision, the drive roll is installed again away from the roll 3. When the breaks are. and eccentrically to the shaft axis, the supporting shaft — during the next position 4 from the deformed zone — are driven and the product is placed in the zone of its issuance, pushing in eccentric bushings, the eccentric body 8 comes into interference from the bushings of the supporting and rolling rolls 9 and, pushing the product 19, are permanently adjustable with the possibility of fixing it from seizing or adhering relative to their bodies, while with the knurling roll 5. Then the rod 17 driving the support rolls kinematically drops - and with it. sub connected to a common drive. push-pull product 19. At the exit 2. The knurling rotor according to item I, wherein, from the guide 41, the product supports the ejection mechanism prepared by the reach 46, and here its grippers are made in the form of a tick grip 45 located between the supporting and knurling rolls of the spring-loaded rotor the position of the issuance of the modified pusher, which interacts with the fruit, is similar to the position of its delivery by the cam fixedly mounted on the base of Fig. 1). support rolls and driven rolls, the latter being installed in eccentric sleeves, as well as a mechanism for pushing the workpiece out of the knurling area, characterized in that, in order to increase The invention makes it possible to improve the quality of products by increasing out of geometrical accuracy, achieved due to the possibility of adjusting the support and knurling rolls installed in an eccentric containing drive shaft mounted on the base, freely mounted on Out sleeves. Invention Formula 1. Rotor knurling cylindrical products containing a drive shaft mounted on the base, freely mounted on There is a drive roll, kinematically connected with a common drive, and knurling positions located outside the drive roll, which are mounted in cases product quality by increasing geometrical precision, the drive roll is set. eccentric to the shaft axis, the support rolls are driven and installed in eccentric bushings, the eccentric bushings of the support rolls and knurled rolls are adjustable and can be fixed relative to their housings, while the drive of the support rolls is kinematically connected with the common drive. support rolls and driven rolls, the latter being installed in eccentric sleeves, as well as a mechanism for pushing the workpiece out of the knurling area, characterized in that, in order to increase 2 / -22 FIG. 2 B 36 5ff Fie.6