SU1562719A2 - Balancing machine - Google Patents

Abstract

The invention can be used in balancing machines for orienting crankshafts and improves serviceability by further orientation and fixing the driver in the initial position. For this purpose, a pin 18 is interconnected with the guides of the tailstock 6, placed between the drive headstock 5 and the leash 17 with the possibility of axial movement. The finger is designed to interact with the socket, made in the leash, with the axial movement of the tailstock 6 and allows you to keep the leash from turning. 7 il.

Description

The invention relates to mechanical engineering, can be used in balancing machines for orienting crankshafts, and is an improvement to the device according to the author. V 1411592.

The aim of the invention is to improve serviceability by further orientation and fixation of the driver in the initial position.

Figure 1 and 2 presents the balancing machine, a General view; in FIG. 3, section A-A in FIG. 1; figure 4 - section bb in figure 2; figure 5 - nodes I and II in figure 2; Figures 6 and 7 are view B in Figure 4 (embodiments),

A balancing machine for measuring the imbalance of crankshafts 1 contains a frame 2 mounted on its frame 3 and the drive 4 of the shaft rotation. The drive frame 5 and tailstock 6 are mounted on the frame and are mounted with the possibility of movement relative to

frame from the actuator 7 axial movement and spring-loaded relative to it by a spring 8. On the guides of the tailstock an additional support 9 is installed with the possibility of axial movement, spring-loaded relative to it by the spring 10. On the guides of the tailstock and the drive headstock there are stops 11 and 12 that interact with the additional support during removal and clamping of the shaft. The axis of the additional support is offset relative to the axis of the centers 13 and 14, fixed on the spindle x 15 headstock, by an amount greater tolerances on the maximum radial runout of the shaft necks relative to its conical center holes 16, interacting with the centers, and smaller than the largest radius of these holes. The rotation of the crankshaft receives from the leash 17 attached to the spindle of the drive headstock. With the guides of the tailstock is connected finger 18, placed (L

ate about

No

3

Yu

between the drive stock and the leash with the possibility of axial movement. It is intended to interact with the socket 19, made in a leash. In this case, the sum of the lengths 1 and 12 of the finger and socket is chosen greater than the length of 1 stroke of the tailstock by 1. For initial orientation of the driver, an initial position sensor 20 is installed.

Balancing machine works as follows.

In the initial position, the tailstock 6 is in the extreme left position, i.e. the headstocks are moved apart, the additional support 9 is preloaded by the spring 10 against the stop 11, and the finger 18 is inserted into the socket 19, fixing the leash 17 in the initial position with the groove upwards. The crankshaft 1 is mounted on the additional support 9 from above so that its connecting rod neck fits into the notch of the driver 17. Then the drive 7 of the axial movement shifts the tailstock to the right together with the additional support, the crankshaft and the finger 18, bringing the latter out of the slot 19. In this case 9 slides against the stop 12, compressing the spring 10, and the conical center bores 16 enter into contact with the centers 13 and 14. Further displacement of the rear buttock to the right leads to the raising of the crankshaft over the additional support and its rigid fixation at the centers. In this case, the finger 18 comes out of the socket 19, setting its conical surface from the carrier 17 at a distance of 14, the minimum permissible so as not to touch the driver during its rotation. The rotational drive 4 is turned on, transmitting the torque through the spindle 15 and the leash 17 to the crankshaft. The imbalance is measured, followed by

Q 5

0

20 leash stops oriented

sensor

in preliminary accuracy +5 the initial position when the groove of the leash is directed upwards. The drive 7 of the axial movement begins to move the tailstock 6 to the left, and the tapered portion of the finger 18 has time to enter the socket 19 of the leash before it turns. Upon further movement of the tailstock to the left, the crankshaft is lowered onto the additional support 9, which under the action of the spring 10 is displaced to the stop 11, and the finger 18, the passage through the socket 19, remains in engagement with the latter, fixing the leash, as the sum of the lengths of the finger and the socket 1 1a more than the length of the stroke 13 of the tailstock. After this, the crankshaft is removed and the machine returns to its original position.

Installing a finger connected to the tailstock and interacting with the jack in the driver improves the serviceability by simplifying the orientation of the driver in a given angular position during the loading and unloading of the machine and combining the removal of the tailstock to its initial position and bringing it to the working position with orientation, fixation and release of the leash.

Claims (1)

Invention Formula No Balancing machine for auth. 1411592, different so that, for the sake of ease of maintenance, it is provided with a finger connected to the tailstock, positioned between the drive headstock and the leash with axial movement and intended to interact with the slot made in the leash. and but 9-9 01 5 9i gu // and L o 1, -glf FIG. five Vid Lviv. " FIG. 6