RU2795819C1 - Device for holding the tested object - Google Patents

Abstract

FIELD: test equipment.

SUBSTANCE: invention can be used in impact testing of a product. The device contains a carrier beam connected to the lifting device through the holding and dropping device, a base made in form of a rigid rectangular frame, to the opposite sides of which the carrier beam with a loop is rigidly attached above along the vertical symmetry plane of the frame for connection with the holding and dropping device. In the sides of the frame, to which the carrier beam is fixed, through longitudinal grooves are made symmetrically to the plane of symmetry of the beam. Below on the frame, symmetrically to the axis of symmetry of the frame perpendicular to the grooves made in it, two lower beams are installed, containing studs with nuts fixed to them, rigidly fixed in the beams, passing through the corresponding through longitudinal grooves of the frame, providing the possibility of moving the lower beams relative to the frame in a direction perpendicular to its plane of symmetry. At the same time, through longitudinal grooves are made in the lower beams, perpendicular to the through grooves of the frame, designed to fix the tested object. The rigid base may be movable along the rails of the impact test bench.

EFFECT: possibility of carrying out impact tests using the proposed device, provided that the tested object is fixed with a suspension point adjustable in two directions.

2 cl, 5 dwg

Description

The invention relates to test equipment and can be used in impact testing of products.

A device for fixing a test object (OI) is known, described in the patent "Stand for testing an object for impact" (RU No. 2568409, IPC G01M 7/08 (2006.01), publ. 20.11.2015. Bull. No. 32). The stand contains a power frame with vertical posts, a lifting device connected through a holding and reset device with a device for fixing the test object (OI), an anvil installed at the bottom of the power frame. The lifting device is made in the form of a winch connected by a cable that wraps around the blocks placed on the power frame, with a suspension equipped with a hook for hanging the holding and resetting device and connected by reactive guys to the vertical racks of the power frame. The device for fixing the RI is made in the form of a traverse (beam) with an adjustable suspension point and is equipped with four connecting elements and a trap, the first end of each connecting element is pivotally connected to the traverse, and the second is intended for connection with the RI. The catcher is made containing at least two flexible elements, one of the horses of each of which is connected to the traverse, and the other end is fixed through dampers to the vertical racks of the power frame. The connecting elements may contain turnbuckles. The second leg of each connecting element, when it is made rigid, is equipped with a release earring designed to be connected to the baffle hooks installed on the OD or on the body in which it is placed, or made flexible, the second end of each of which is designed for articulated connection with the OD or with the case in which it is placed.

This device for fixing OI is selected as a prototype.

The disadvantage of this device for fixing the OI is that it is made in the form of a traverse with a suspension point, adjustable in only one direction.

The technical problem to be solved by the claimed invention is to create a device that provides reliable connection of test objects that differ in the location of attachment points to a device for holding and dropping in an impact test stand.

The technical result consists in the possibility of carrying out impact tests using the proposed device, provided that the OI is fixed with a suspension point adjustable in two directions.

The technical result is achieved due to the fact that the inventive fixture for holding the object under test (hereinafter referred to as the fixture), containing a carrier beam connected to the lifting device through the holding and resetting device, unlike the prototype, contains a base made in the form of a rigid rectangular frame, to the opposite to the sides of which, along the vertical plane of symmetry of the frame, a carrier beam with an eye is rigidly attached from above for connection with a holding and reset device. In the sides of the frame, to which the carrier beam is fixed, through longitudinal grooves are made symmetrically with respect to the plane of symmetry of the beam. On the frame, from below, symmetrically to the axis of symmetry of the frame perpendicular to the grooves made in it, two lower beams are installed, containing rigidly fixed studs in them, passing through the corresponding through longitudinal grooves of the frame, with nuts fixed to them, providing the possibility of moving the lower beams relative to the frame in the direction, perpendicular to its plane of symmetry. Through longitudinal grooves are made in the lower beams, perpendicular to the through grooves of the frame, intended for fixing the object under test.

The rigid base may be movable along the guides of the impact test stand.

The use of the entire set of features of the proposed device ensures reliable fastening of the RI with various attachment points located on it, with a suspension point adjustable in two directions during impact tests.

The invention is illustrated by figures. In FIG. 1 - shows the image of the claimed device for holding the object under test in a perspective view. In FIG. 2, 3 - shows the images of the device, side and front views. In FIG. 4, 5 - images are shown explaining the operation of the proposed device.

The fixture for holding the object under test 11 contains a carrier beam 2 connected to the lifting device (not shown in the figure) through the holding and resetting device 14, the base, made in the form of a rigid rectangular frame 1, to the opposite sides of which from above along the vertical plane of symmetry of the frame 3 is rigidly attached to the carrier beam 2 with an eyelet 3 for connection with the retention and reset device 14.

The lug 3 is mounted on the carrier beam 2 with the help of a stud 4, an overlay 6, a nut 5.

In the sides of the frame 1, to which the carrier beam 2 is fixed, through longitudinal grooves 17 are made symmetrically with respect to the vertical plane of symmetry of the beam.

On the frame 1, from below, symmetrically to the axis of symmetry of the frame perpendicular to the grooves 17 made in it, two lower beams 10 are installed, containing rigidly fixed in them, passing through the corresponding through longitudinal grooves 17 of the frame 1, the studs 8 with the ganks 9 fixed to them, providing the ability to move the lower beams 10 relative to the frame 1 in the direction perpendicular to its plane of symmetry.

In the lower beams 10, through longitudinal grooves 18 are made, perpendicular to the through grooves 17 of the frame, designed to fix the object under test 11.

The rigid base 1 in this embodiment is made with the possibility of moving along the guides 16 of the impact test stand: on the frame 1 four strips with holes 7 are rigidly fixed, designed to install guide bushings 12, mated with the guides of the impact test stand (copra installation) 16.

The inventive device for holding the test object 11 works as follows.

To dock the device to the specified fastening elements of the pallet 15 or test equipment OI 11, which differ in the location of the attachment points, the pins 8 are loosened and the beams 10 are moved relative to the frame 1 along the grooves 17 of the frame in the “X” direction.

The possibility of docking to the fixing elements of the pallet 15 or test equipment OI 11, the location of which varies in the direction "Y", is provided by the grooves 18 in the beams 10.

The fastening of the pallet 15 or the test fixture OI 11, which differ in the location of the places of attachment to the right vigil, is carried out with the help of threaded elements 13.

To lift the ROI 11, the device with the fixed ROI 11 is attached to the device for holding and dropping 14, using the lifting device, the base 1 is moved up along the guides 16 of the shock test stand, and the device with the ROI 11 is dropped.

Thus. the use of the claimed device ensures reliable connection of test objects, differing in the location of attachment points, with a suspension point, adjustable in two directions, to a device for holding and dropping RW in a shock test stand, thereby ensuring impact tests.

Claims (2)

1. A fixture for holding a test object, containing a carrier beam connected to a lifting device through a holding and reset device, characterized in that it contains a base made in the form of a rigid rectangular frame, to the opposite sides of which the carrier beam is rigidly attached from above along the vertical plane of symmetry of the frame with an eyelet for connection with a holding and reset device, in the sides of the frame to which the carrier beam is fixed, symmetrically with respect to the plane of symmetry of the beam, through longitudinal grooves are made, on the frame, from below, symmetrically to the axis of symmetry of the frame, perpendicular to the grooves made in it, two lower beams are installed, containing rigidly fixed in them, passing through the corresponding through longitudinal grooves of the frame, the studs with nuts fixed to them, providing the possibility of moving the lower beams relative to the frame in the direction perpendicular to its plane of symmetry, while in the lower beams there are through longitudinal grooves perpendicular to the through grooves of the frame, intended to secure the object under test. 2. A device for holding a test object according to claim 1, characterized in that the rigid base is movable along the guides of the shock test bench.

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