SU1526933A1 - Self-setting support for broaching machine - Google Patents

Abstract

The invention relates to a machine tool industry, in particular to adaptations to shear machines. The aim of the invention is to increase the reliability in operation by maintaining the mobility and rigidity of the support element in a steady-state position with any pulling force. The self-supporting bearing comprises a housing 1, a support member consisting of an intermediate disk 2 and an outer disk 3, as well as two friction disks 4, 5 and a bearing sleeve 6. The outer disk 3 is spring-loaded to the housing 1 in the axial and radial directions by compression springs 7 and 8. The axial direction compression springs also compress the friction disks 4 and 5. On the end surfaces of the intermediate disk 2 there are crackers 9 arranged in pairs on two mutually perpendicular intersecting axes, which allow the outer disk 3 to swing When self-alignment in any axial plane relative to the housing 1, the frictional force that arises when sliding friction discs, holds the support element from tipping into a particular steady state. 2 Il.

Description

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The invention relates to the field of machine tools, in particular to adaptations to shearing machines.

The aim of the invention is to increase the reliability of operation by maintaining the mobility and stiffness of the support element in a steady-state position with any reinforcement gain.

FIG. 1 shows a self-aligning support, axial section; in fig. 2 is a view A of FIG. one.

The self-supporting bearing contains a body 1, which is a body of a vrasen inside which a support element is mounted, consisting of an intermediate 2 and external 3 disks.

On the collar of the outer disk 3, a friction disk 4 is movably axially mounted, interacting with a friction disk 5 fixedly mounted on the protrusion of the housing 1. In the main panel this does not affect the quality of pulling, since the bending load from the supporting element is insignificant compared to stabbing The support works as follows. When the trajectory of movement of the casing of the crawl deviates from the direction of movement of the slider of the pulling machine, which is inevitable due to technological errors, including the beating of the base end of the blanks,

10, the broach begins to roll in the hole being machined under the action of some bending moment of force. The bending moment of force acting on the casing of the span is transmitted to the reference

 an element that rotates and removes the bending load from the draw.

At the end of the working stroke, in the zone of the calibrating teeth, the force of pulling drops sharply and the radial action springs 8 could return the support element in the original hole of the outer disk 3 by setting the walking position. However, the friction force is supported by the support sleeve 6, which is nipple-free friction

disk 4 across disk 5 prevents this.

removable piece and is intended for pulling each particular batch of blanks.

Between the outer 3 and the friction 4 discs are installed spring 7 compression, clamping the supporting element to the body in the axial direction on one side and compressive friction disks 4 and 5 on the other. In addition, the outer disk 3 pod25

ensuring the passage of cutting and gage teeth at one position of the support element. In the support, due to the friction force arising during sliding of the friction discs, the system of forces acting on the support element is balanced during the working stroke, which eliminates the possibility of tipping back to the housing 1 in the radial section of the Dyvani of the support element, as well as

board springs 8 squeeze.

On the end surfaces of the intermediate disc 2 along diametral lines, along their entire length, two pairs of triangular shaped prismatic crackers with

vibration, thus ensuring high reliability of the support under load.

Maintaining the mobility of the support element under load, regardless of its vertex, rounded along the radius, and the face, eliminates the appearance of a plane bending symmetry of a pair of prismatic moments of forces acting on the body.

during its working stroke.

crackers 9, located on one end surface, are perpendicular to the plane of symmetry of a pair of prismatic crackers 9, located on the opposite, and the line of interchange of these planes passes through the center of the intermediate ring.

On the bearing surfaces of the housing 1 and the outer disk 3, interacting with the crackers 9 of the intermediate disk 2, response grooves 10 are made. In order to move the support element from the stand, it is necessary to apply some moment of force that must be overcome by the frictional force that occurs when sliding friction 40

45

ensuring reliable operation and high quality of the holes being drilled.

Claims (1)

Invention Formula A self-aligning support for stretching machines, comprising a housing, an outer disk spring-loaded onto the housing, an intermediate disk and mounted in pairs and located on two mutually perpendicular crackers, which, in order to improve reliability of operation, the support is equipped with two friction discs, one disc 4 across the disc 5. The magnitude of the moment n of which is installed with the possibility of a force that moves the supporting element from the place, the axial movement on the one made on it is installed almost due to the first rim of the rim and the other hard Neither compresses the springs 7 by changing the thickness of the body, while the springs of the gasket 1 I are placed between the outer and the frictions during pulling until the vibrations disappear. The disks also increase, the crackers are made on the spring compression torsion 8. The moment of force, 55 cent surfaces of the intermediate disk, which pushes the support element off, is created by the outer disk additionally podruzhidaet some bending load on the body on the body in the radial direction during its working stroke, however. this does not affect the quality of the pulling, since the bending load from the support element is insignificant as compared with the pulling. The support works as follows. When the trajectory of movement of the casing of the crawl deviates from the direction of movement of the slider of the pulling machine, which is inevitable due to technological errors, including the beating of the base end of the blanks, In the course of a stretch, it starts rolling in the hole being machined under the action of some bending moment of force. The bending moment of force acting on the casing of the span is transmitted to the reference an element that rotates and removes a bending load from a draw. At the end of the working stroke, in the zone of the calibrating teeth, the force of pulling drops sharply and the radial action springs 8 could return the supporting element to ensuring the passage of cutting and gage teeth at one position of the support element. In the support, due to the friction force that occurs when the friction discs slide, a system of forces acting on the support element is balanced during the working stroke, which eliminates the possibility of tilting the support element as well as vibration, thus ensuring high reliability of the support under load. 40 45 ensuring reliable operation and high quality of the holes being drilled. Invention Formula A self-aligning support to the stretching machines, comprising a housing, an outer disk spring-loaded onto the housing, an intermediate disk and mounted in pairs and located on two cross-cutting mutually perpendicular croutons, characterized in that Figg