Coping saw load testing device

A technology of load testing and curve sawing, which is applied in the direction of applying repetitive force/pulsation force to test the strength of materials, etc. It can solve the problems of reduced strength of the saw blade, high working intensity, fatigue of the saw blade, etc., so as to reduce the test cost, save test materials, The effect of improving test efficiency

Inactive Publication Date: 2013-01-09
南通市乐悦实业有限公司
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Coping saw load testing device
  • Coping saw load testing device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0010] Attached below Figure 1-2 The technical solution of the present invention is described in detail.

[0011] The jigsaw load testing device includes a mounting frame 1, a magnetic powder clutch 2, and rollers 6, 7; the magnetic powder clutch 2 is installed on the outside of the mounting frame 1, and its output end 3 is connected to the roller through a one-way bearing. 6, the one-way bearing can only rotate freely in one direction, but cannot rotate in the other direction. There is a gap between the rollers 6 and 7. During the test, the saw blade of the jigsaw 5 to be tested is located in the gap and clamped by the rollers 6 and 7.

[0012] Due to the characteristics of the sawtooth structure of the jigsaw, when the jigsaw is working, the saw blade reciprocates along the cutting direction. The saw blade is free.

[0013] Therefore, the present invention utilizes the resistance produced by the magnetic powder clutch 2 to simulate the load received by the jigsaw in actu...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

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...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Patents(China)
IPC IPC(8): G01N3/34
Inventor 严小斌薛振江张鑫
Owner 南通市乐悦实业有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap