SU994127A1 - Hydraulic carriage - Google Patents

Description

(54) HYDRAULIC SUPPORT

The invention relates to the field of machine tools and can be used in metal-cutting machines for bezopirnoy processing; step parts.

A hydraulic caliper of a slot-cutting machine is known for the beskopirnoy processing of stepped surfaces, containing a frame, a slider, equipped with two drive cylinders, one of which is fixed on the frame, and the other is rigidly connected to the slider, and the pistons of the cylinders are connected by a common rod C.

The known caliper has a number of drawbacks: out of three positions, emanated by the driver, only two are regulated — the middle and the rear; The placement of the adjustable stop is not coaxial with the rod and lengthens it, making it less rigid and non-compact.

The aim of the invention is to expand the technological capabilities of the hydraulic caliper.

To achieve the goal, the rod of hydraulic cylinders is made detachable with the possibility of adjustment in length, while the fixed hydrosadiller is mounted rotatably

and connected to an adjusting rod inserted into the cynnoffT located inside the movable hydraulic cylinder, with the longitudinal grooves-slots being made on the rod of the fixed hydraulic cylinder, the adjusting rod is made with a tapered section and provided with an additionally inserted collet mounted

10 with the ability to interact with the rod fixed hydrocylindra.

Figure 1 shows the hydraulic caliper, a general view in figure 2 a section aa in figure 1.

15

The hydraulic caliper comprises a frame 1 with guides 2, on which a slider 3 is mounted for movement. On the frame 1, a hydraulic cylinder 4 is rigidly fixed

20 by a piston 5 and a rod 6 rotatably mounted and having a threaded portion for connection with the rod 7 of a piston 8 placed in a hydraulic cylinder 9 which, in its

25 turn, rigidly fixed to the slider 3. The piston B is equipped with another rod 10, installed in the direction opposite to the rod 7, inside the rod 10 with the possibility of rotation; there is placed an adjusting rod 11, made with a conical section 12 and fitted with a collet 13. 13. The collet the sleeve 13 is designed to unclamp the threaded part of the rod b of the fixed hydrocylinder 4, which is made with the longitudinal grooves of the slots 14, by means of an adjusting rod 11, which is connected to the threaded part of the rod b by means of a key 15 installed in a radial hole 16 made on the adjusting rod 11, and a screw 17 fixed therein and a spring 18. The second end of the adjusting rod 11 is pulled out over the end of the rod 10 and secured thereto by a sleeve 19. From the axial movement of the sleeve. 19 is fastened to the rod 10 with a piece 20, the adjusting rod 11 in the sleeve 19 is secured against rotation by the key 21. The rod 11 is pressed against the screw 22 screwed into it.

To adjust the stroke of the piston 8, the cover 24 of the hydraulic cylinder .9 includes a sleeve 24 rotatably with respect to the cover 23. A stop member 25 is screwed into the cup 24, which is held against rotation by a guide key 26 entering the longitudinal groove of the stop member 25 and fixed on the cover 23. By rotating the bowl 24, it is possible to introduce or output the stop element 25 to this value into the hydraulic cylinder 9, thereby adjusting the working stroke

, polaushki. In addition to the outer groove, through which the stop element 25 is kept from rotating, it is equipped with a groove on the inner surface into which a key 27 is inserted, mounted on the stem 10 of the hydraulic cylinder 9; Thus, the piston 8 loses the possibility of rotation relative to its axis.

The hydraulic caliper is configured as follows.

To adjust the caliper to the treatment of a certain surface, it is necessary to adjust the distance between the pistons, select the gap in their threaded connection and adjust the stroke of the movable hydraulic cylinder. For this, by rotating the sleeve 19, the stem b of the stationary hydraulic cylinder is screwed or turned out of the rod 7, and thus the distance between the pistons 5 and 8 and the slide 3 is adjusted, the size of which is determined by the number of revolutions of the sleeve 19 and the thread pitch.

After adjusting the distance between the pistons 5 and 8, a clearance is made in the rolling joint of the two rods. The screw 22 is wrapped and the adjusting rod 11 with its conical part 12 expands the collet sleeve 13, which deforms the stem b, having slots 14. When released. the screw 22, the spring 18 facilitates the removal of the adjusting rod from the collet of the sleeve 13, then the distance between the pistons is secondary adjusted (for a different treatment size).

To regulate the stroke of the piston 8 of the movable hydraulic cylinder 9, the cup 24 should be rotated, and the stop element 25 will then move by the required amount relative to the hydraulic cylinder 9, thereby adjusting the stroke of the hydraulic cylinder 9.

When making these adjustments, the initial position of the slider can be taken forward, backward or middle. It should be borne in mind that these positions can be achieved in two ways. For example, the first position (rear) of the movable cylinder 9 is obtained when the stops limiting the movement of the slider 3 backwards are the pistons 5 and 8. In this case, the extreme position of the slider 3 is obtained by contacting it with a movable stop mounted on the frame 1. When the second way to achieve the extreme rear position, the movement of the slider back is limited by the rear fixed stop mounted on the frame 1, and the forward movement in the extreme position is limited by the pistons 5 and 8.

Hydraulic caliper works as follows.

In the initial position, the piston 5 of the hydraulic cylinder 4 is pressed with its plane to the cover of the piston cavity. The piston 8 of the hydraulic cylinder 9 is pressed against the lid located in the cavity of the piston 7. All adjustments are made.

Oil is discharged into the piston chamber of the hydraulic cylinder 4, and the pori 5 moves to the cover of the rod end. Simultaneously with the movement of the piston 5 with the rod b, the slider 3 also moves with the hydraulic cylinder 9, the rod 7 of which is rigidly connected with the rod b. When reaching KptauKH of the rod end of the hydraulic cylinder 4, the piston 5 stops one part of the part is machined.

Claims (1)

For processing the next step of the part, the oil supply to the piston cavity of the hydraulic cylinder 4 does not stop, oil is supplied to the cavity of the rod 10 of the hydraulic cylinder 9. At this, the slider 3 is forced to move, and the tool fixed on it processes the next step. At the end of the treatment, the slider 3 with the HYDROCILINDER.OM 9 and the piston 5 with the rod b are returned to their original position. At that, the oil supply to the cavity of the rod of the hydraulic cylinder 9 is stopped and supplied to the cavity of the rod 7. Then the supply of oil to the piston cavity of the hydraulic cylinder 4 stops and is supplied to the rod cavity. , return with the original position. The use of the inventive image permits the stepless adjustment of the caliper positions in the front, C1, and rear positions. Claims of the Invention that, in order to expand technological capabilities, the rod is made detachable and adjustable in length, the piston of the stationary hydraulic cylinder is rotatably mounted and connected to REFERENCE caliper adjusting rod disposed inside the movable cylinder, while on the rod a stationary cylinder formed longitudinal grooves, slots, and adjusting Sr zhen provided with a conical portion and provided with an additionally introduced into the caliper collet-sleeve mounted for engagement with the stem of the fixed cylinder. Sources of information taken into account in the examination 1. USSR author's certificate No. 334014, cl. 23/21/00, 1966.