SU649892A1 - Hydreulic cylinder - Google Patents

Description

The invention relates to a machine tool industry, in particular to machine tools, and can be used to fasten parts on a table of machine tools.

A known hydraulic cylinder for halls of immobilization, comprising a housing with a lid, a cup mounted in the housing with accumulating springs interacting with the pusher, and a fixer 1 mounted on the flap.

However, a known hydraulic cylinder can be used in a clamping device to create one-way working movement. If it is necessary to ensure two-sided working movement, it is necessary to replace the hydraulic cylinder. Also in known devices, the clamping force of the cylinder can be changed only by changing the pressure in the hydraulic line, which creates inconvenience in operation.

The purpose of the invention is to expand the technological capabilities of the hydraulic cylinder by creating a two-way working movement.

To achieve this goal, the cup at the end is provided with a flange with peripheral and central holes, and stops installed in non-peripheral holes with axial movement and interacting with the lid and pusher, and a plunger mounted in the central hole of the flange, having a shoulder located between the flange end. and pusher.

FIG. 1 shows a hydraulic cylinder, a section (operation of the cylinder as a push); in fig. 2 - the same (operation of the cylinder as a base).

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The hydraulic cylinder for the hallway consists of a body 1 with a lid 2. Inside the body / there is a cup 3 with accumulating disc springs 4 interacting with the pusher 5. On the lid 2 a clamp 6 is installed, 5 shaped, for example, in the form of a nut.

The glass 3 is provided with a flange 7, in which the peripheral holes 8 are fitted with stops 9 with the possibility of axial movement and interaction with the lid 2 c pusher 5. A movable plunger having an annular collar} 2 located between the end of the flange 7 and the pusher is installed in the center opening W of the flange 7 5. Between the bottom of the Cornus / and the glass 3 is installed the piston J3. The plunger // is threaded to install the spherical screw 14 when using the cylinder as a pushing (see FIG. 1). Viit M with his spherical head of a Comte, ktyruyut with a clamp 15, which0

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Claims (1)

ry transfers the clamping force to the part through a pin 16 with a nut 17 installed in the groove of the table 18 of the machine on which the hydraulic cylinder is mounted. To fix the springs in the compressed state, i.e., to maintain the clamping force, in such a cylinder the lock & in the form of a nut screwed onto the flange 7. If it is necessary to use a cylinder to create a pulling clamping force (see Fig. 2), a stud 19 is screwed into the plunger // connecting the cylinder with a nut 17 with the clamp 20 of the clamping device. The cylinder is fixed in the groove of the table 18 flock using a screw 21. The hydraulic cylinder operates as follows. If it is necessary to operate the cylinder as a pump (see Fig. 2), pressure is applied to the body / cylinder. The piston 13 moves and transmits the force through the cup 3 and the movable stops 9 to the stack of disc springs 4. The pusher 5, resting against the lid 2 of corus I / through the stops 9, remains non-movable, and the flange 7 with the cup 3 pushes upwards as the piston 13 continues to move. Then the nut 17 is screwed up to contact with the clamp 20 with the clamped part. The pressure is released and the piston 13 comes to its original position. Using the force of the package of cup springs 4, the cup 3, with its flange 7, through the plunger 11, which is threaded to the clamp 20, provides clamping force on the part. By returning the piston 13 to the initial position, the working fluid is expelled from the housing / cylinder to the pipeline, which allows the supply hoses to be removed before starting the machine into operation. If it is necessary to operate the cylinder as a pushing (see Fig. 1), the cylinder is guided by a spherical screw 14 under the clamp 15 of the clamping device and with a small force screw the nut 17, as a result of which the plunger 11 moves down through the clamp 15 and through the plunger 5 and the glass 3 compresses the return spring up to the contact of the cup 3 with the piston 13. This forms a gap between the housing / cylinder cover 2 and the stops 9. When pressure is applied to the cylinder, the piston 13 with the cup 3 and the flange 1 M rise upward, compressing the package of cup springs 4 to the required lead reason After that, the latch 6 is screwed all the way into the cover 2 of the housing /, which maintains the clamping force. The use of the proposed hydraulic cylinder will allow increasing the coefficient of its use in clamping devices when fastening various parts, since one and the same hydraulic cylinder provides for the creation of two-way traffic and can be used both as pulling and pushing. Claim hydraulic cylinder containing a cornus with a lid, mounted in a case with accumulating springs cooperating with a pusher, and a retainer installed on the lid, characterized in that in order to expand technological possibilities by creating two-way traffic, the glass on the end is fitted with a flange having peripheral and central holes, and stops installed in the peripheral holes with the possibility of axial movement and interacting with the cover and the pusher There is an ilunger installed in the central hole of the flange, which has a collar, a chalky {do. butt flange and pusher. The source of information taken into account in the examination: 1. USSR Author's Certificate No. 433307, cl. F 16 J 11/00, 1972. Rig. I 20 18