SU1194607A1 - Machine for cutting coiled stock - Google Patents

Abstract

MACHINE FOR CUTTING RIBBON MATERIAL, containing the mechanism of longitudinal material feed, the cross feed unit of the cutting mechanism installed on the caliper, the mechanism for moving the cutting tool head along the material feed axis, connected by a rigid kinematic chain, with the aim of expanding the technological capabilities by synchronizing the movement of the cutting tool with the speed of movement of the material, the Bbinoj HeH cutting mechanism in the form mounted in bearings on a slide across feed with rotation of the disk, with the guide pins fixed on the end, carrying the head of the cutting tool, equipped with a roller mounted with the ability to interact with the mounted copier mounted on the soup9 port, and the kinematic chain is equipped with a guitar for adjusting the speed of rotation of the disk and a guitar for tuning the speed disk.

Description

WITH

four;

but

one

The invention relates to mechanical engineering, and more specifically to a piece of material for dimensional workpieces, and can be used in automobile and tractor factories that use a large number of parts manufactured by the method of cutting, for example brake and lubrication system tubes, rods, strip bands.

The purpose of the invention is the expansion of technological capabilities by expanding the range of cut blanks due to kinematic communication of mei with a material moving at constant speed and rotation of the cutting tool head, synchronization of the movement of the cutting tool head with the speed of the material, and the presence of guitars with interchangeable gears.

Fig. 1 shows a schematic diagram of the machine J in Fig. 2 — the same, and a front view of Fig. 3 — the same, the plan in Fig. 4 is a drive for rotating the milling cutter; n FIG. 3 — a transverse feed assembly of the cutting mechanism j in FIG. 6 — a synchronization copier of the feed speed of the cutting mechanism with the feed speed of the material; figure 7 - node synchronization of the feed rate of the cutting mechanism with the feed rate of the material; in Fig.8 is a device of a milling head in Fig.9 is a diagram of the device tray.

The machine consists of a frame 1 (Fig. 3) on which the feeding device 2 is mounted. The feeding device 2 is driven by the electric motor 3 and carries the guitar 4 and the power reduction gear 5 (figures 1, 2 and 3). The gearbox 5 is connected by a cardan gear 6 with a cutting mechanism 7, a disk 9 is fixed on the shaft 8 of the cutting mechanism 7, in which a shaft 11 is mounted on the bearings 10 carrying a lever 12 and a belt drive pulley 13, the second pulley of the belt drive 13 is located on the motor shaft 14 mounted on the lever 15.

The shaft 11 of rotation of the tool is connected with the lever 12 to the axis of rotation of the shaft of the electric motor 14. The cutting mechanism 7 is connected by a guitar 16 to a mechanism 17 for its transverse feeding. The guitar 16 is mounted on a support 17 to the mechanism 17. On the caliper

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18 also fixed a bracket 19 with a cutting mechanism 7 and a bracket 20 with a cam 21 (FIG. 3). The copier 21 is in contact with the roller 22, fixed 5 on the slide 23. Constant pressing of the copier 21 to the roller 22 is carried out by springs (not shown). The slide 23 is mounted in the rails of the carriage 24 mounted on the bed 1. In the carriage 24 an adjusting screw 23 is mounted, the nut 26 of which is located in the slide 23. In the bracket 19 there is mounted a copier 27 for the roller 28 (Fig.6 and 7). In the disk 9 two rolling pins 29 are mounted, on which the head 30 of the cutting tool and the springs 31 are located. The head 30 (FIG. 8) bears on itself the spindle 32 with the cutting tool (cutter) 33

20 and roller 28. The spindle 32 is connected to the shaft 11 by a splined hub 34 (FIG. 7). To the bed, in addition, the guide bracket 33 is fastened, supporting bracket 36 and receiving

25 a tray consisting of two upper shelves 37 and 38 and a reservoir 39. The copier 27 meshes with the gear 40 connected to the limb 41, on the rim of which there are marks indicating the

The 30 steps of the tubes that the guitar 4 is tuned to ..

The operation and adjustment of the machine is carried out as follows.

Initially, the guitars 4 and 16 were tuned. Knowing the speed, material per minute (main step), which is set by the feed mechanism, and the gear ratio of the guitars 4, at which the cutting head 30

40 instrument makes one revolution per minute, adjust the gear ratio of the guitar 4, taking into account the necessary-. my length of the cut material :, if the length of the cut material

45 is close to the main pitch, the copier 21 is set to the position indicated in Fig. 3, and the guitar 16 is turned off and does not participate in the work. In these cases x caliper 18 wines-.

50 volume 23 is fed forward so that for one revolution of the disk 9 the cutting tool (milling cutter) 33 cuts off the tube, and the length of the tube is determined only by the setting

55 guitars 4. After feeding the slide 18 with screw 23, the slide stops (the lock mechanism is not shown). If the length of the material being cut exceeds the main pitch more than 1.75 times, it is divided into the main step, the result is rounded to an integer number, the guitar 16 is tuned to this number, and the guitar 4 is tuned to the step obtained by dividing the length of the cut material for the gear ratio of the guitar 16, then the head of the cutting tool takes several turns (depending on the gear ratio of the guitar 16) not income to the material being cut, but on the last turn the copier 21 takes the position indicated in FIG. 5 and gives the cutting mechanism forward , at the same time the mill makes a piece of material of necessary length. The cutter itself rotates from the engine 14 through the belt drive 13, shaft 11, schlintsevaya sleeve 34 with the lever 12 and the lever 15. The cutting depth is determined by the diameter or width of the material and is set with the screw 25 and the nut 26. The process of cutting the material to length occurs as follows. From the unwinding device (not shown), the material is manually fed into the gap between the shoes of the chains of the contours of the feeding device 2, which, without slipping through the material, feeds it into direction 35 and supporting 36 brackets. At the same time, a movement is transmitted to the cutting device 7 from the pickup trost 07 2 through the guitar 4, the power reducer 5 and the cardan gear 6, the disk 9 rotates with the roller 28 of the cutting tool head 30 and the cutter 33. turning the disc 9, the milling cutter 33 passes between the brackets 35 and 36 and cuts the measuring pieces from the material passing through them. During the cut, the cutter should move along the axis of the material at the speed of movement of the material. This is achieved by the fact that the roller 28 is in contact with the cam 27 at the time of the segments and retracts the milling head 30 to the right, i.e. synchronizes the movement of the cutting tool head 30 with the movement of the material. After the roller 28 has passed the copier 27, the head 30 of the cutting tool by the springs 31 returns to the rest position. For each length of cut pieces, the tilt of the copier is manually changed. For long pieces of material, the cutting tool head 30 and the milling cutter 33 make several idle strokes, i.e. no income t to cut material. The number of idle strokes is determined by the tuning of the guitar 16. The accuracy of the length of the cut pieces of material is determined by the tuning of the guitars 4 and 16 and is not disturbed by the lack of slippage in the feed mechanism 2 and the rigid kinematic connection of all the mechanisms of the machine.

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Claims (1)

CUTTING MACHINE FOR RIOT MATERIAL, containing a mechanism for longitudinal feeding of material, a node for the lateral feeding of a cutting mechanism mounted on a support, a mechanism for moving the head of the cutting tool along the axis of supply of material, interconnected by a rigid kinematic chain, characterized in that, in order to expand technological possibilities by synchronizing the movement of the cutting tool with the speed of the material, the cutting mechanism is made in the form of a transverse mounted in bearings on a support giving with the possibility of rotation of the disk, with guide rollers fixed to the end, supporting the cutting tool head, equipped with a roller mounted with the ability to interact with an adjustable copier mounted on the support, and the kinematic chain is equipped with a guitar for setting the speed of rotation of the disk and a guitar for setting the speed of the disk . , 1194607