Coping saw load testing device

Abstract

The invention relates to a coping saw load testing device which is characterized in that the testing device comprises a mounting rack (1), a magnetic powder clutch (2) and two rollers (6, 7). The magnetic powder clutch (2) is installed at the outer side of the mounting rack (1), with the output end (3) connected with the roller (6) through a unilateral bearing; and the saw blade of the coping sawto be tested is arranged in the clearance between the two rollers and is clamped by the two rollers. In the process of testing the coping saw, the testing device entirely employs the magnetic powder clutch and the unidirectional bearing to simulate the load under the practical working condition and no real cutting material is used in the testing process. Therefore, the testing device can improve the testing efficiency, save testing material and reduce the testing cost and is simple and convenient to operate.

Description

technical field [0001] The invention relates to a jigsaw load testing device. Background technique [0002] In 1947, the German company Bosch invented the world's first jigsaw. Curve saw is a kind of electric reciprocating saw that can be sawed according to the curve, also called combing machine and vertical saw. For sawing, you can also install sharp blades to cut rubber, leather, fiber fabrics, foam plastics, cardboard, etc. Jig saws are widely used in industries such as automobiles, ships, furniture, and leather, and are also widely used in wooden molds, handicrafts, scenery, advertising production, and repair industries. [0003] The saw blade of the jigsaw is clamped on the jigsaw, and the saw blade moves up and down through the workpiece to be sawed. Usually, the teeth of the saw blade are forward, so when working forward according to the cutting track, the reaction force of the load will be generated. Under the action of load, the saw blade will fatigue and age aft...

AI Technical Summary

Problems solved by technology

[0003] The saw blade of the jigsaw is clamped on the jigsaw, and the saw blade moves up and down through the workpiece to be sawed. Usually, the teeth of the saw blade are forward, so when working forward according to the cutting track, the reaction force of the load will be generated. Under the action of load, the saw blade will experience fatigue and aging after working for a long time, which will cause the strength of the saw blade to decrease and cause fracture

[0004] Usually, in order to test the performance of the jigsaw, it is necessary to use the jigsaw to be tested to work on the actual material to be processed. This test method is labor-intensive and will cause waste of materials, which increases the cost of the test.

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