SU1715568A1 - Clamp for samples - Google Patents

Abstract

The invention relates to mechanical engineering, namely to devices for surface treatment for the manufacture of microsections in metallographic studies. The aim of the invention is the expansion of technological capabilities. The clamp contains a sleeve 1, two parallel adjustments 2 and 3 with coaxial holes 4 Vi 5 located on both sides of the flange 6 of the sleeve. In one of the adjustments 3, a central hole is made in which the sleeve is coaxially installed, and the adjustment 3 is cooperated with a flange 6. The threaded rod 7 is connected with the adjustment 2, and its threaded surface interacts with the threaded surface formed in the sleeve opening. The clamp is provided with a pressure washer 8 with a central hole mounted coaxially on the sleeve. The power actuator 9 is mounted on the sleeve and interacts with the pressure washer 8. To clamp the parts evenly, the clamp is provided with an elastic gasket 10. The parts to be machined are installed in the holes 4 and 5 of the adjustments 2 and 3 and with the help of the power actuator 9 the pressure washers 8 are pressed to the sleeve 6 1. 1 z.p, f-ly, 1 ill. W I 10 / I 5 8 I with С

Description

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The invention relates to metallurgy and can be used in mechanical engineering for the manufacture of microsections in metallographic studies of screws, bolts, and rivets made of various metals and alloys.

A known clamp for samples, made in the form of a U-shaped cone, in which adjustments are made, and an elastic clamping element with coaxial sample openings and a clamping element.

Closest to the proposed technical essence is a clamp for samples containing a sleeve with a central hole flange, parallel adjustment with coaxial holes, located on both sides of the sleeve flange, one of which is made with a central hole in which the sleeve is coaxially mounted threaded rod and actuator.

However, in the known clips, there is no provision for adjusting the size in height between parallel adjustments, which are rigidly connected to the holder with clamping screws, and since the screw type parts, the rivets have a head, it is necessary to manufacture individual clips for each size of parts.

The purpose of the invention is the expansion of technological capabilities by expanding the range along the length of the clamped parts and simplifying the design.

The goal is achieved by the fact that the rod is connected with the second adjustment, a thread is made in the bore hole, interacting with the stem thread, the first adjustment is in contact with the sleeve flange, the clamp is equipped with a pressure washer with a central hole installed coaxially on the bushing, the power drive is mounted on the bushing and associated with a pressure washer.

To evenly clamp the parts, the clamp is provided with an elastic gasket with a hole mounted coaxially on the sleeve between the pressure washer and the first set-up.

The drawing shows the clip with fixed samples, the cut.

The clamp contains sleeve 1 and two parallel adjustments 2 and 3 with coaxial holes 4 and 5 located on either side of flange 6 of sleeve 1. In one of adjustments 3, a central hole is made in which sleeve 1 is coaxially installed and adjustment 3 interacts with the flange 6. The threaded rod 7 is associated with set-up 2, and its threaded surface interacts with

threaded surface made in the hole of the sleeve 1. The clip is provided with a pressure washer 8 with a central hole, which is mounted coaxially on the sleeve

1. The actuator 9 is mounted on the hub 1 and interacts with the pressure washer 8. To clamp the parts evenly, the clip is provided with an elastic gasket 10.

The clamp works as follows.

Before starting work, adjust to the required height of the samples. To do this, first tighten the nut of the actuator 9 from the sleeve 1 and remove the pressure washer 8. A sample, for example a rivet,

inserted into aligned holes 4 and 5 in set-up 2 and set-up 3, respectively. Unscrew the sleeve 1 up the stem 7, adjust the height H so that the end of the sample protrudes by the value of h

above set-up 2. Then all holes 4 and 5 are filled with samples (rivets). On the sleeve 1 put the pressure washer 8 gasket 10 in the direction of the samples. The nut 9 is screwed onto the sleeve 1 until it stops.

The clamp is ready for operation. After grinding, the nut 9 is screwed together, the washer 8 is removed and: samples are removed for metallographic studies. (The clamp is then used for a new batch of samples.

Form la invention

Claims (2)

1. A sample clamp containing a sleeve with a central hole and a flange, parallel adjustments with coaxial holes, located on either side of the sleeve flange, one of which is made with a central hole in which the sleeve, threaded rod and actuator are mounted coaxially, characterized in that, in order to expand the technological capabilities by expanding the range along the length of the clamped parts and simplifying its design, the rod is connected with the second adjustment, the hole in the sleeve is made the thread interacting with the stem thread, the first adjustment is in contact with the sleeve flange, the clip is provided with a pressure washer with a central hole mounted coaxially on the sleeve, the power actuator is mounted on the sleeve and connected to the pressure washer. 2. Clamp as claimed in Claim 1, characterized in that, in order to evenly clamp the parts, it is provided with an elastic gasket with a hole mounted coaxially on the sleeve between the pressure washer and the first adjustment.