CN2369805Y

CN2369805Y - Curve saw driving and swing mechanism

Info

Publication number: CN2369805Y
Application number: CN 99226601
Authority: CN
Inventors: 方力生
Original assignee: SUZHOU PLASTIC FACTORY NO 9
Current assignee: SUZHOU PLASTIC FACTORY NO 9
Priority date: 1999-05-12
Filing date: 1999-05-12
Publication date: 2000-03-22
Anticipated expiration: 2009-05-12

Abstract

The utility model relates to a curve saw driving and swing mechanism. An eccentric gear 2 is engaged with a motor shaft tooth 1. A swing plate 3 is arranged on the eccentric gear 2, and the lower end of the swing plate 3 is contacted with a swing frame component 9. The other end of the swing frame component 9 is contacted with a saw blade 8. The swing amplitude of the swing frame component 9 is regulated by a swing regulating shaft 10. A shaft on the eccentric gear 2 is connected with a slide bar 4. The saw blade 8 is fixed on the slide bar 4, and the slide bar 4 is arranged in an upper and a lower slide bearings 5 and 6. Two slide bearings 5 and 6 are directly arranged on a machine casing. The slide bearing 5 winds an O point to rotate, and one side of the slide bearing 6 is provided with a compression spring 7.

Description

The transmission swing mechanism of sweep-saw

The utility model relates to a kind of transmission mechanism of electric tool, particularly a kind of transmission swing mechanism of sweep-saw.

At present, the transmission mechanism of electric jig saw has two kinds, and a kind of do not have a swing mechanism, and its saw blade does reciprocating linear motion, and does not have cutter relieving, and working strength is bigger, and saw blade weares and teares easily; Another kind has swing mechanism, but structure is complicated, driving parts is many, except that the transmission mechanism that has axle, tooth to cooperate, swing mechanism parts, also will have a series of parts such as device of swinging frame, axle, swing gyroaxis and being fixed in casing to connect saw blade and eccentric gear axle, thereby manufacturing cost is higher.

The purpose of this utility model provides a kind of transmission swing mechanism of improved sawing campaign, and it can prevent the sawtooth wearing and tearing effectively, and simplified structure has been save traditional wobble frame and swing gyroaxis, has reduced manufacturing cost.

The purpose of this utility model can realize by following technical proposal: mesh eccentric gear on the motor shaft tooth, oscillating deck is housed on the eccentric gear, the lower end of oscillating deck contacts with the swing span parts, the swing span parts contact with saw blade again, and the amplitude of fluctuation of swing span parts is regulated by the oscillation adjustment axle.Axle on the eccentric gear connects with slide bar, and saw blade is fixed on the slide bar.Feature of the present utility model is that slide bar is loaded in upper and lower two sliding bearings, and two sliding bearings directly are loaded on the casing, and the sliding bearing of its top can be made rotary oscillation, and sliding bearing one side of below is equipped with stage clip.During work, when the swing span parts are subjected to the downward power of oscillating deck to the right during rotary oscillation, promote saw blade with slide bar rotary oscillation to the right, simultaneously along with the eccentric gear rotation and move upward, this moment, saw blade was in running order.When oscillating deck moved up recovery, swing span is rotary oscillation left, and saw blade moves downward.More than the synthetic track that has just formed the sawing campaign of two motions.

The utility model has also adopted two rotating only sliding bearings directly to be loaded on scheme on the casing except swing mechanism is arranged, thereby can prevent the sawtooth wearing and tearing effectively, improves service life, simplifies the structure again, has reduced cost.

The utility model will be further described below in conjunction with drawings and Examples:

Accompanying drawing is the transmission swing mechanism schematic diagram of sweep-saw

In the accompanying drawings, Reference numeral 1 is the motor shaft tooth, and 2 is eccentric gear, and 3 is oscillating deck, and 4 is slide bar, and 5,6 is sliding bearing, and 7 is stage clip, and 8 is saw blade, and 9 is the swing span parts, and 10 is the oscillation adjustment axle.

Engagement eccentric gear 2 on motor shaft tooth 1, eccentric gear 2 connects with slide bar 4 with rotary axle box by turning cylinder, saw blade 8 is fixed on the slide bar 4 by pressure knife block and 2 branch head screws, slide bar 4 is loaded in upper and lower two sliding

bearings

5,6, sliding bearing 5,6 directly is loaded on the casing, sliding bearing 5 can rotate 7 reset responses of the stage clip of sliding bearing 6 one sides around the O point.On eccentric gear 2, also be set with oscillating deck 3, an end in contact of the lower end of oscillating deck 3 and swing span parts 9, the other end of swing span parts 9 contacts with saw blade 8.When swing span parts 9 were subjected to the driving of oscillating deck 3, around the revolution of axle center P point, its amplitude of fluctuation was subjected to regulating shaft 10 controls, and regulating shaft 10 directly connects knob, when regulating shaft 10 is in the diagram upright position, and the 9 stressed swings to the right of swing span parts, amplitude is maximum; When it was horizontal, amplitude of fluctuation was zero.The utility model mainly is to move upward after saw blade is swung to the right to move downward pumping of combining simultaneously with swing left, when saw blade moves upward, in running order, i.e. cutter lifting sawing campaign, when saw blade moved downward, promptly cutter relieving broke away from duty.

Claims

1. the transmission swing mechanism of a sweep-saw, engagement eccentric gear 2 on motor shaft tooth 1, oscillating deck 3 is housed on the eccentric gear 2, the lower end of oscillating deck 3 contacts with swing span parts 9, swing span parts 9 contact with saw blade 8 again, the amplitude of fluctuation of swing span parts 9 is regulated by oscillation adjustment axle 10, and the axle on the eccentric gear 2 connects with slide bar 4, and saw blade 8 is fixed on the slide bar 4.It is characterized in that: slide bar 4 is loaded in upper and lower two sliding bearings 5,6, and upper and lower two sliding bearings 5,6 directly are loaded on the casing, and sliding bearing 5 can rotate around the O point, and a side of sliding bearing 6 is equipped with stage clip 7.