Portable electric saw blade cutting machine
Technical field
The utility model belongs to electric cutting tool technical field, is specifically related to a kind of Portable saw blade cutting machine, is the improvement to existing cutting machine structure.
Background technology
At present, the common equipment cutting for steel such as metal circular or square solid steel, circle or square pipe, I-steel, channel-section steels is abrasive wheel cutting machine, abrasive wheel cutting machine is again abrasive cutoff saw, it is mainly comprised of base, the saw that is arranged on base, and described saw comprises motor, the emery wheel being rotarilyd actuate by motor.But the deficiency existing is in actual use: first, abrasive cutoff saw is more suitable for carrying out cutting processing in the thin metal bar of wall, tubing or section bar, the comparatively difficulty that seems when cutting heavy wall, large-sized solid metal bar, thereby the scope of application is narrower; Secondly, because the thickness of abrasive cutoff saw medium plain emery wheel is larger, in cutting process, can cause raw-material waste; Again, higher at the heating temp of cutting process medium plain emery wheel, its surface is adhesiving metal material easily, easily damages the finished surface of metal bar, so the precision of emery wheel cutting is poor.
Deficiency for above-mentioned existence, existingly for solid metal bar some wall thickness, large-sized, conventionally adopt saw blade to carry out cutting processing, but the cutting of most saw blades is manual operations, production efficiency is low, labour intensity is large, can not adapt to the growth requirement of modern mechanical processing industry.Although also have, adopt large-scale sawing machine to carry out the cutting processing of steel, cost is high, and quality weight can not move, and makes its scope of application be subject to equally restriction to a certain extent.
In view of above-mentioned prior art, be necessary existing for the abrasive wheel cutting machine structure of processing bar rational modification in addition.For this reason, the applicant has done useful design, and technical scheme described below produces under this background.
Summary of the invention
The purpose of this utility model be to provide a kind of easy to use, cost is low, efficiency is high, guarantee crudy, applied widely, can effectively save raw-material Portable saw blade cutting machine.
The purpose of this utility model reaches like this, a kind of Portable saw blade cutting machine, be characterized in: comprise base, saw frame seat, power drive mechanism, crank, connecting rod, slide block, saw blade and bracket, described saw frame seat is hinged on described base, on described saw frame seat, offer slide block slot, described power drive mechanism is arranged in the upper plane of saw frame seat, this power drive mechanism is comprised of motor and reduction box, described motor is connected with the input power transmission shaft of reduction box by motor shaft, described crank is connected with the output power transmission shaft of reduction box by crank fixed axis, on the outer surface of described crank, be provided with a pitman shaft, the center of this pitman shaft and described crank is eccentric setting, one end position of described connecting rod is on described pitman shaft, the other end pivot of connecting rod is on slide block, described slide block is arranged in described slide block slot movably, in the narrow contracting in the both sides of slide block width, form and have slide block sliver, described saw blade is fixed on the below of slide block short transverse by saw blade-holder, described bracket has a pair of, be separately fixed on the lower plane of saw frame seat and corresponding to the position of slide block slot width both sides, on a pair of bracket, form and have chute respectively, the slippage between the lower plane of saw frame seat and the chute of a pair of bracket respectively of a pair of slide block sliver of described slide block both sides.
In a specific embodiment of the present utility model, described base is provided with lower axle bed in one end of length direction, described saw frame seat is provided with axle bed in one end of length direction, the setting that faces each other of upper axle bed and lower axle bed, and by bearing pin, connect described saw frame seat is hinged on described base between the two.
In another specific embodiment of the present utility model, described crank fixed axis is arranged on a bearing block rotationally, and described bearing block is fixed in the upper plane of described saw frame seat by support.
In another specific embodiment of the present utility model, described slide block is provided with pivot pin seat above short transverse, pivotally connected by pivot pin between the other end of described connecting rod and described pivot pin seat.
In another specific embodiment of the present utility model, described slide block is provided with saw blade stand below short transverse, described saw blade-holder by securing member with described saw blade stand structure for being fixedly connected with.
Of the present utility model, also have in a specific embodiment, described base is provided with for supporting the tray of described saw frame seat on the other end of length direction.
In of the present utility model and then a specific embodiment, described saw frame seat is provided with handle on the other end of length direction.
More of the present utility model and in a specific embodiment, described base is also provided with bar fixture in the position corresponding to saw blade, this bar fixture comprises V-type seat, clamping screw and screw bolt seat, the setting that faces each other of described screw bolt seat and described V-type seat, described clamping screw and described screw bolt seat screw, by regulating the distance between clamping screw and described V-type seat, for the fixing bar of different size.
The utility model is owing to adopting after said structure, and the beneficial effect having: first, simple in structure, cost is low, and quality is light can handled easily workman lifts or conversion, shift position arbitrarily; Secondly, production efficiency is high, and crudy is good; The 3rd, the hollow metal bar that wall is thin can not only be cut, and the solid metal bar of large-size can be cut, range of application is very extensive; The 4th, due to the thickness of the saw blade thickness much smaller than abrasive cutoff saw, therefore when cutting processing, can effectively save raw material.
Accompanying drawing explanation
Fig. 1 is an embodiment three-dimensional exploded view of the present utility model.
Fig. 2 is the stereogram of Fig. 1.
In figure: 1. base, 11. trays, 12. times axle beds, 121. bearing pins; 2. axle bed, 23. handles on saw frame seat, 21. slide block slots, 22.; 3. power drive mechanism, 31. motors, 311. motor shafts, 32. reduction boxes; 4. crank, 41. crank fixed axis, 411. bearing blocks, 42. pitman shafts; 5. connecting rod; 6. slide block, 61. pivot pin seats, 611. pivot pins, 62. slide block slivers, 63. saw blade stands; 7. saw blade, 71. saw blade-holders; 8. bracket, 81. chutes; 9. bar fixture, 91.V type seat, 92. clamping screws, 93. screw bolt seats; 10. bar.
The specific embodiment
Applicant elaborates the mode with embodiment below, but to the description of embodiment, be not all the restriction to technical solutions of the utility model, any according to the utility model design, done only for pro forma but not substantial equivalent transformation all should be considered as the technical solution of the utility model category.
Refer to Fig. 1 and Fig. 2, the utility model relates to a kind of Portable saw blade cutting machine, comprises base 1, saw frame seat 2, power drive mechanism 3, crank 4, connecting rod 5, slide block 6, saw blade 7, bracket 8 and for the fixing bar fixture 9 of bar 10.Described saw frame seat 2 is hinged on described base 1, specifically: base 1 is provided with lower axle bed 12 in one end of length direction, saw frame seat 2 is provided with axle bed 22 in one end of length direction, the setting that faces each other of described upper axle bed 22 and described lower axle bed 12, and by bearing pin 121, connect between the two.Described base 1 is provided with for supporting the tray 11 of saw frame seat 2 on the other end of length direction.On described saw frame seat 2, offer slide block slot 21, on the other end of saw frame seat 2 length directions, be provided with the handle 23 of handled easily.Described power drive mechanism 3 is arranged in the upper plane of saw frame seat 2, and this power drive mechanism 3 is comprised of motor 31 and reduction box 32, and described motor 31 is connected with the input power transmission shaft of reduction box 32 by motor shaft 311.Described crank 4 is connected with the output power transmission shaft of reduction box 32 by crank fixed axis 41, and described crank fixed axis 41 is arranged on a bearing block 411 rotationally, and described bearing block 411 is fixed in the upper plane of described saw frame seat 2 by support.On the outer surface of described crank 4, be provided with a pitman shaft 42, this pitman shaft 42 is eccentric setting with the center of described crank 4.One end hub setting of described connecting rod 5 is on described pitman shaft 42, the other end hub setting of connecting rod 5 is on slide block 6, specifically: one end of connecting rod 5 is set on described pitman shaft 42 and fixes with jump ring in outside, the other end of connecting rod 5 is by pivot pin 611 and pivot pin seat 61 pivot joints that are located at slide block 6 short transverse tops.Described slide block 6 is arranged in described slide block slot 21 movably, in the narrow contracting in the both sides of slide block 6 widths, forms and has slide block sliver 62, and the upper plane of described slide block sliver 62 contacts cooperation with the lower plane of described saw frame seat 2.Described saw blade 7 is fixed on the below of slide block 6 short transverses by saw blade-holder 71, specifically: described slide block 6 is provided with saw blade stand 63 below short transverse, described saw blade-holder 71 by securing member with described saw blade stand 63 structures for being fixedly connected with.Described bracket 8 has a pair of, be separately fixed on the lower plane of saw frame seat 2 and corresponding to the position of slide block slot 21 width both sides, on a pair of bracket 8, form and have chute 81 respectively, the lower plane of a pair of slide block sliver 62 and the chute 81 of a pair of bracket 8 of described slide block 6 both sides contact cooperation.
Further, described base 1 is also provided with bar fixture 9 in the position corresponding to saw blade 7, this bar fixture 9 comprises V-type seat 91, clamping screw 92 and screw bolt seat 93, the setting that faces each other of described screw bolt seat 93 and described V-type seat 91, described clamping screw 92 screws with described screw bolt seat 93, by regulating the distance between clamping screw 92 and described V-type seat 91, for the fixing bar 10 of different size.
Please continue to refer to Fig. 1 and in conjunction with Fig. 2, narrate operation principle of the present utility model: when needs carry out cutting processing to bar, first bar 10 is placed in bar fixture 9, by regulating clamping screw 92, described bar 10 is fixed in the V-type groove of V-shape base 91; Then, motor 31 work, motor shaft 311 is the input power transmission shaft to reduction box 32 by power transmission, again by the output power transmission shaft of reduction box 32 by transmission of power to crank fixed axis 41, by crank fixed axis 41, drive crank 4 rotations, the rotation of crank 4 drives again the connecting rod 5 being attached thereto to swing, thereby drives the slide block 6 being connected with connecting rod 5 to move back and forth in the interior work of described slide block slot 21 left and right; Again because saw blade 7 is fixed on described slide block 6 by saw blade-holder 71, so the left and right of slide block 6 moves back and forth and drives again saw blade 7 reciprocating on bar 10, thereby realizes the surface trimming action of 7 pairs of bars 10 of saw blade.
In sum, the technical scheme that the utility model provides has overcome the shortcoming described in the superincumbent background technology of applicant hurdle all sidedly, and practical has embodied the technique effect that applicant mentions in technique effect hurdle.