SU1349965A1 - Automatic machine tool for grinding brake shoes - Google Patents

Abstract

The invention relates to the field of mechanical engineering and can be used to automate technological processes for machining complex-shaped parts such as brake shoes having hard. available base surfaces. The aim of the invention is to improve the performance of the machine by automating the loading and unloading of complex-shaped parts on the rotary tables of the grinding machine. To do this, in front of each turntable 2, a loading device is installed, made in the form of step-by-step conveyor 4 arranged in series, tilter 5 fixed to the end of step-by-step conveyor 4, rammer 6 with part position sensor 7 on turntable 2. The unloading mechanism is located between the step conveyors 4 and the mechanism for fixing the part 8 on the turntable 2 is mounted with the possibility of reciprocating movement in the vertical plane. 6 Il. Vidb 1C O) with 4; with X) C5 SP srig.Z

Description

The invention relates to mechanical engineering and can be used to automate technological processes for the treatment of complex-shaped parts such as brake pads, half-rings, with difficult-to-reach base surfaces.

The purpose of the invention is to increase the productivity of the machine by automating the loading and unloading of complex-shaped parts on the rotary tables of the grinding machine.

FIG. 1 shows a brake shoe grinding machine, general view; in fig. 2 is a view A of FIG. I; in fig. 3 is a view B in FIG. 2; in fig. 4 is a view of B in FIG. 3; in fig. 5 is a section of YYD in FIG. 2; in fig. 6 is a view of D in FIG. five.

The brake shoe grinding machine contains a base L, on which two rotary tables 2 are installed. Before each rotary table 2, there is mounted a grinding head 3. On the reverse side of the grinding heads. G1, before each rotary table 2, a loading device is mounted on base 1, made in the form of successively arranged stepping conveyor 4, tilting device 5 fixed at the end of the clamp-bogy conveyor 4, and a rammer b with the sensor 7 of the position of the part 8 (brake pad) on the rotary table 2. Between the stepper and conveyors 4 in front of the turntables 2 pa the base 1 is fixed. The unloading mechanism, made in the form of a conveyor 9, in front of which is installed on the base 1 inclined tray 10, and at the other end - a hopper 11 for accumulating the machined parts 8. On each turntable 2 on its working surface 12 is mounted a fixture 13 for the clamping of detail 8, a mechanism for fixing the part 8, made in the form of a strip 14 with a rod 15 mounted on it. Nlanka 14 is fixed on the rod 16 spring-loaded relative to the turntable 2 by a spring 17. On the second the end of the rod 16 is mounted roller 18. The locking mechanism is installed with the possibility of reciprocating 1-o movement in a vertical plane when interacting with the cam 19 fixed on the base 1 concentric with the axis of the shaft 20 of the rotary table 2. fia the locking mechanism lowering section 19 and the roller 18 of the rod 16 is shifted relative to its axis in the direction of its movement along the cam 19.

A stop 21 is fixed on the plane of the turntable 2, the base elements 22 and 23 for placing the part 8 and the mechanism 24 for unloading the parts 8 from the swivel foot 2.

five

0

0

5 0 5 .. 5

0

Brake grinding machine The yodok works as follows.

The operator periodically lays the pads on the step conveyors 4, located to the left and right of the discharge conveyor 9, and releases the hopper II located at the end of the conveyor 9 in front of the operator. The stepping conveyor 4 supplies the parts 8 to the tilter 5. The front part 8 stops at the tilter 5, gives a signal to turn off the step conveyor 4, after which the tilter turns the part 8 through 90 °.

The rammer 6 with the corresponding angular position of the turntable 2 feeds part 8 to the base element 22 and the stop 21. At the same time the turntable 2 continues non-stop rotation. The rammer 6 presses the part 8 until the part is locked with a clamping device. If the part is not correctly fixed on the base member 22, the sensor 7 associated with the rammer 6 gives a blocking signal and stops the automat. When the part 8 is correctly fixed, a mechanism based device is activated. The rod 16 is pulled down under the action of the spring 17, the profile of the cam 19 is repeated, and the rod 15 passes through the hole of the part 8, is fixed in the hole of the turntable 2. With its conical part, the rod 15 accurately centers the part 8 relative to the axial base. By turning against the grinding head 3, the part 8 is machined. At the end of processing, the clamping device is activated. The rod 15 is raised, and the item 8 is dropped by the unloading mechanism 24. The cycle is then repeated, and the machined parts slide down the tray 10 onto the conveyor 9 and are fed to the bunker P.

Claims (1)

Invention Formula .Automatic machine for grinding brake pads, containing grinding heads mounted on the base, two rotary tables, each of which is equipped with devices for clamping parts and a mechanism for fixing them, characterized in that, in order to improve performance, the machine is equipped with loading devices located in front of each rotary table, each of which is made in the form of njag conveyor arranged in series, turn-over device and rammer with sensors of the part position on the rotary table, and mechanism. m unloading, located between the conveyors, with the locking mechanism installed with the possibility of reciprocating movement in the vertical plane. figure 1 32 23W 9 I I // 1 ff FIG. five Vidl Phage. 6 Compiled by I. Shchiviev Tehred I. Veres. Circulation: 786 VNIIPI USSR State Committee for Inventions and Discoveries 1 13035, Moscow, Zh-35, Raushsk nab. 4/5 Production Polygraphic Plant, Uzhgorod, ul. Project, 4 Editor I. Gorna Order 5052/13 Proofreader A. Obrucha Podnisnoe retentions and discoveries Proofreader A. Obnuchar Podnisnoe