CN2091195U

CN2091195U - Hand pitch arc and straight line shearer

Info

Publication number: CN2091195U
Application number: CN 91206579
Authority: CN
Inventors: 张九民
Original assignee: Individual
Current assignee: Individual
Priority date: 1991-04-19
Filing date: 1991-04-19
Publication date: 1991-12-25

Abstract

The utility model relates to a hand-driven shearing machine which can cause the metal plate to make the arc line shear and the straight line shear. A straight line upper knife and an arc line upper knife are respectively drivened via a hand-driven pressing bar, through a gear rod, a gear block, a slider block driving crankshaft and an eccentric shaft, via a slide block connected to the crankshaft position and a slide plate on the eccentric shaft, and a straight line lower knife and an arc line lower knife adapted to the straight line upper knife and the arc line upper knife are fixed on the knife seat on the machine body, and can make the straight line shear or the arc line shear as long as the pressing bar is pressed. The machine has the advantages of one-machine two-purpose, easy and safe operation and good cutting quality, etc. The machine also has the advantages that the combustion gas is omitted and the knife tool can be changed and re-grinded.

Description

Hand pitch arc and straight line shearer

The utility model relates to a kind of manual plate shearing machine that sheet metal can be done the shearing of camber line or straight line.

Shear sheet metal at present and adopt acetylene, oxygen, burning cutting more, the combustion gas use amount is big, and cut quality and cutting speed are all undesirable, operate dangerous.

The purpose of this utility model is to overcome the defective that above-mentioned cutter sweep exists, and provides a kind of without combustion gas, and cutting speed is fast, can make the manual plate shearing machine that camber line or straight line are sheared arbitrarily.

This machine is by manually pressing thick stick, through rack, tooth piece, little axle and slide block driving crank and eccentric shaft, drive straight line upper slitter and camber line upper slitter respectively by slide block and the slide plate on the eccentric shaft that is connected in the bent axle position, cutter is fixed on the fuselage tool rest under the straight line that adapts with it, the camber line, and hand is pushed thick stick can realize doing camber line or straight line shearing.The technical solution of the utility model is: be connected in the rack of pressing on the thick stick and be meshed with the tooth piece, the little axle 6 of pressured thick stick end passes rack, the little axle of the other end passes a watt seat, fuselage two sides and pressing plate is housed at the axle head of little axle, pass the bent axle middle part of slide block and pressing plate and the axial position of eccentric shaft end and be respectively equipped with sliding sleeve, and can in corresponding slide block slot, slide, slide block and slide plate combine as a whole by eccentric shaft, reach down at the slide block slide plate and on the tool rest upper and lower cutter of straight line (23,23 ') and the upper and lower cutter of camber line (15,15 ') are housed respectively.

Below by accompanying drawing embodiment of the present utility model being done one describes in detail.

Fig. 1 is the front view of this plate shearing machine.

Fig. 2, Fig. 3 are respectively the partial sectional views of bent axle and eccentric shaft.

Fig. 4, Fig. 5 respectively are the side view and the vertical view of plate shearing machine.

See Fig. 1, Fig. 4 and Fig. 5, fuselage 2 is fixed on the support 1, and tooth piece 3 is fixed in the trailing flank of fuselage 2, presses thick stick 4 one ends to insert rack 5, rack is meshed with tooth piece 3, respectively there is a little axle 6 at the fuselage two ends, and the little axle 6 of pressured thick stick end passes rack 5, and the little axle of the fuselage other end passes watt seat 10, to support little axle, watt seat 10 is fixed on the fuselage by front shroud 9, and the little axle axle head of fuselage both sides is with pressing plate 8, and clench nail 26 is fixing with little axle by pressing plate.Upper cover plate 7 and front shroud 9 are contained in fuselage top and fuselage leading flank respectively.See Fig. 3, slide block 20 is coupled to one with slide plate 13 by eccentric shaft 14, and eccentric shaft sliding sleeve 11 is enclosed within on the eccentric shaft 14, and can slide in slide block 20 grooves, and slide plate 13 positions that eccentric shaft 14 is adjusted end penetrate alignment pin 12.Camber line upper slitter 15 among Fig. 1 is contained in the bottom of slide plate 13, cutter 15 ' is contained on the arc tool rest 16 under the camber line, the arc tool rest places on the fuselage table top, arc cutter footstock 18 is fixed on fuselage one end by arc tool rest 16, the fastening bolt parallel with fuselage 17 links to each other with arc tool rest 16 by footstock 18, with the position of fastening bolt adjusting arc tool rest and replacing, reconditioning cutter.The blade of shearing outer bowlder camber line upper slitter is a spill, and following blade is a convex; The arc blade of bowlder camber line upper slitter is a convex in shearing, and following blade is a spill, and the arc radius of upper and lower cutter is 300～1500mm, can be furnished with the upper and lower cutter of many cover arcs in this arc radius, to satisfy the needs of shearing inside and outside circle of different arc radiuses and arc.Eccentric shaft is positioned at the bent axle bottom, its radially with axially being each positioned on two parallel lines of bent axle.

See Fig. 2, bent axle passes fuselage and slide block 20, and passes the interstitial hole of pressing plate 8, and wherein an end penetrates in pressing plate 8 and the bent axle 19 with bent axle alignment pin 22, and the other end is the bent axle adjustable side, and bent axle sliding sleeve 21 is enclosed within the bent axle middle part and can slides in slide block slot.

See Fig. 4, straight upper slitter 23 is contained in slide block 20 bottoms that link to each other with bent axle, straight cutter 23 ' down is contained on the straight knife seat 24, on the straight tool rest 24 fixed main body table tops down, straight knife footstock 25 is fixed on fuselage one side near the straight knife seat, fastening bolt 17 is connected with straight knife seat 24 by straight knife footstock 25, to adjust the position of straight knife seat.

When not using the camber line cutter, can be with the spindle nose adjustment end Rotate 180 of eccentric shaft 14 °, the camber line upper slitter that is connected with slide plate rises, then by alignment pin 12 location; If use the camber line cutter, just extract alignment pin 12 out, with eccentric shaft Rotate 180 °, this moment, the camber line upper slitter descended, and located with alignment pin more again.After using the straight line cutter, use the camber line cutter again, camber line upper slitter 15 then can't use when being lower than under the camber line cutter 15, bent axle alignment pin 22 can be extracted out, with the spindle nose adjustment end Rotate 180 of bent axle °, again with alignment pin 22 location, this moment, slide plate and slide block rose simultaneously, adjusted two camber line cuttves with eccentric shaft again, reached clipped position.If re-use the straight line cutter, 180 ° of first rotary crankshafts make straight upper slitter drop to clipped position, by alignment pin 22 location; Extract the rotation of eccentric shaft alignment pin again out the camber line cutter is risen, can shear with alignment pin 22 positioning instants.

The advantage of this plate shearing machine is:

1. dual-use is adjusted easy to usely, has saved combustion gas;

2. shearing quality is better than fire weldering cut quality, handling safety;

3. can change at any time or the reconditioning cutter, following tool rest can be adjusted with upper knife edge and coincide, and the thickness that can shear metallic plate is 1～5mm.

Claims

1, the manual plate shearing machine of a kind of camber line straight line, comprise fuselage, the tooth piece, rack, press thick stick, and by little axle, pressing plate, eccentric shaft, bent axle, slide block, driveline and shear knife device that slide plate etc. are formed, it is characterized in that being connected in the rack 5 of pressing on the thick stick 4 is meshed with tooth piece 3, the little axle 6 of pressured thick stick end passes rack 5, the little axle of the other end passes watt seat 10, fuselage 2 two sides and pressing plate 8 is housed at the axle head of little axle, pass slide block 20, sliding sleeve [11 is equipped with at bent axle 19 middle parts of pressing plate 8 and the axial position of eccentric shaft 14 ends respectively, 21], and can in corresponding slide block slot, slide, slide block 20 combines as a whole by eccentric shaft 14 with slide plate 13, at slide block 20, slide plate 13 reaches down and is equipped with on the straight line respectively on the tool rest, following cutter [23,23 '] and camber line on, following cutter [15,15 '].

2, according to the described manual plate shearing machine of claim 1, it is characterized in that on the arc tool rest 16 of slide plate 13 bottoms and fuselage table top the upper and lower cutter of camber line (15,15 ') being housed, footstock 18 is fixed on fuselage one end by arc tool rest 16, and the fastening bolt 17 parallel with fuselage links to each other with the arc tool rest by footstock 18.

3, according to the manual plate shearing machine of claim 1 or 2, it is characterized in that on the straight knife seat 24 of slide block 20 bottoms and fuselage the upper and lower cutter of straight line (23,23 ') being housed, straight knife footstock 25 is fixed on fuselage one side near straight knife seat 24, and fastening bolt 17 is connected with straight knife seat 24 by straight knife footstock 25.

4, according to the described manual plate shearing machine of claim 1, it is characterized in that eccentric shaft 14 adjusts slide plate 13 positions of end and penetrate alignment pin 12, bent axle alignment pin 22 penetrate with the pressing plate 8 and bent axle 19 of adjusting the relative end of end in.

5, according to claim 1 or 2 described manual plate shearing machines, the blade of the upper and lower cutter of bowlder camber line is the epirelief concave shape in it is characterized in that shearing, and the blade of shearing the upper and lower cutter of outer bowlder camber line is last recessed convex.