SU1724459A1 - Device for sawing wood - Google Patents

Abstract

The invention relates to a device for sawing wood and can be used for cutting parts with curvilinear contours. The goal is to facilitate the process of learning sawing. The device consists of a cutting table 1, a clamp 2 and a jigsaw 3, to the bracket 4 of which the guide 5 of the first kinematic pair 6 is fixedly attached, along which the slider 7 freely moves. On the guide 5 between the bracket 4 and the slider 7 there is a spring 8, working on compression. The slider 7 is rigidly connected by a link 9 with a second kinematic pair 10 with the possibility of movement in the horizontal plane. In turn, the second kinematic pair 10 by link 11 is rigidly connected to the third kinematic pair 12. In this case, the link 11, together with the second kinematic pair 10, also has the ability to move in the horizontal plane. Kinematic pair 12 is a rotational pair with one fixed link 13 rigidly connected to clamp 2. Operation with the device is not different from working with a conventional jigsaw, but due to the presence of kinematic chains, the jigsaw bracket plane moves strictly in a vertical plane, except for This possible blockage jaws learners from a vertical position in the side or forward-backward. 1 il. cl

Description

The invention relates to a device for sawing wood and can be used for cutting parts with curvilinear contours.

The purpose of the invention is to facilitate the process of learning sawing.

The drawing shows the device, the overall appearance.

The device consists of a cutting table 1, a clamp 2 and a jigsaw 3, to the clip 4 of which the guide 5 of the first kinematic pair 6 is fixedly attached, along which the slide 7 moves freely. On the guide 5 between the clip 4 and the slide 7 there is a spring 8, thawing on compression. The slider 7 is rigidly connected by a link 9 with a second kinematic pair 10 with the possibility of movement in the horizontal plane. In turn, the second kinematic pair 10 by link 11 is rigidly connected to the third kinematic pair 12. In this case, the link 11, together with the second kinematic pair 10, also has the ability to move in the horizontal plane. The kinematic pair 12 is a rotational pair with one fixed link 13 rigidly connected by clamp 2.

The device works as follows.

To cut a closed contour into a part within the contour, a hole is drilled through which the jig saw blade is passed. Z. Then, squeezing the ends slightly

The brackets 4 of the jigsaw 3 fix the free end of the saw blade to the upper clamp of the jigsaw 3. Next, sawing is performed, making upward or downward movement with the hand holding the jigsaw handle 3. When the jigsaw 3 is moving, the plane of the bracket 4, due to the presence of a kinematic chain consisting of elements 5-13 and movably attached to the clamp 2, makes movements strictly in the vertical plane. At the same time possible distortions of the jigsaw bracket from the vertical plane, blockage of the jigsaw plane sideways or nail files back and forth are eliminated.

Claims (1)

Thus, the simulator allows, in the initial period of training, to eliminate the fatigue of students in consolidating the skills of proper use of the tool, having spent much less training time on training. In addition, the device can be used in the manufacture of very precise and important parts, where it is important to get a cut at exactly 90 ° to the plane of the workpiece. The invention includes a device for sawing wood, including a jigsaw with a bracket and a sawing table, characterized in that, in order to facilitate the process of learning sawing, the sawing table is equipped with a clamp, and the jigsaw bracket has a vertical guide with a spring and a slider, which is connected via a kinematic chain clamp.