SU1222428A1 - Automatic machine for countersinking cylindrical work - Google Patents

Description

one

The invention relates to a machine tool industry and can be used for simultaneous countersinking of cylindrical parts from two sides.

The purpose of the invention is the expansion of the technological capabilities of the machine by processing pipe parts of various diameters and lengths.

FIG. 1 shows a schematic diagram of the automaton; in fig. 2 shows a sensor, a longitudinal slit mounted on the spindle head in FIG. 3 - measuring probe together with the cutting tool.

The countersinking machine for cylindrical parts contains a bed 1 on which movable tables 2 are mounted with calipers 3 mounted on them. On the latter are mounted spindle heads 4 in which conical-shaped cutting tools 5 are installed, rotated by electric motors 6. The position of calipers 3 is dependent on on the length of the workpiece 7, they are adjusted by screws 8. The pneumatic cylinders 9 carry out the working feed and removal of the spindle heads 4 after the end of machining. A sensor 10 is installed on at least one of the spindle heads, which provides automatic control of the countersinking depth of the part.

The sensor is made in the form of a base 11 and a plate 12 mounted rotatably with respect to the base 1 1. A plate 13 is fixed to the panel 13 with guides 14, on one end of which a measuring probe 15 is mounted, and on the other a plate 16 with an adjustable stop 17 is used to adjust the sensor to a certain countersink depth and interact with the microswitch 18 mounted on the panel 13.

To return the probe 15 to its original position, there is provided a tongue 19 with a spring 20 interacting with the panel 13.

The base 11 of the sensor 10 is fixed on the spindle head 4 by a bolt 21, and using a screw 22, the plate 12 is mounted in this way.

22428

that the guides 14 are moved with the measuring probe 15 parallel to the tapered part of the cutting tool 5. For mounting 5 of the sensor 10 relative to part 7, a groove 23 serves.

The surface 24 of the probe 15, made in the form of a circular; sector, the minimum radius of which

10 is not less than the maximum radius of the tapered part of the cutting tool 5 ,. intended for contacting with the end face of the part 7 in the process of monitoring countersinking.

ts On the frame 1 a support 25 is mounted, on which the hopper 26 is hinged, and the pneumatic cylinder 27 of the raising and lowering of the bunker is mounted. The cylinder 28 of the clamping of the parts fastened to the frame pneumo20 is provided with self-centering jaws 29. The chute 30 serves to receive the machined parts.

Before turning on the machine

25, adjustment of the sensor 10 is conducted depending on the size of the cutting tool, the depth of processing, the length and diameter of the part. / The machine works as follows.

When turned on, the power is supplied to the electric motors 6 and the components 7 are supplied from the hopper 26 to the work area. Pneumatic fires. " cylinder 28, clamping the part with self-centering jaws 29 and pneumatic cylinders 9 move the spindle heads 4 to the part 7. Cutting tools 5 cut into the part by an amount determined by the setting of the sensor 10,,

the measuring probe 15, in contact with the butt of the part, moves back and upwards, the retraction of the adjustable stop 17 from the continuously closed micro-

45 of the switch 18. At the moment of opening the microswitch, the signal for reversing the pneumatic cylinders 9 is given, each of the sensors giving a signal for reversing only its own pneumatic cylinder. The supports 3 move to their initial position, the part is unclamped, and it enters the chute 30. Then the cycle repeats.

55

25

Fig1

74

to.

(rig. 3

Compiled by Yu. Yudin Editor I. Derbak Tehred G. Gerber, Proofreader S. Cherni

Order 1648/12. Circulation 1001 Subscription VNIIPI USSR State Committee

for inventions and discoveries 113035, Moscow, Zh-35, Raushsk nab., 4/5

Branch ShSh Patent, Uzhgorod, st. Project, 4

Claims (2)

1. An automatic machine for countersinking cylindrical parts, comprising spindle heads mounted on the bed with the ability to move towards each other for fastening conical cutting tools and at least one sensor differing on the plate, and a measuring probe installed with the possibility of moving along the guides. 2. Automatic pop. 1, characterized in that the surface * of the probe is in the form of a circular sector, the minimum radius of which is not less than the maximum radius of the conical part of the cutting tool. >