CN87211163U - Drawing machine with h-type three-guide-rail - Google Patents

Abstract

The utility model relates to a drawing machine with three guide rails arranged in an H shape, which is provided with two longitudinal guide rails and a horizontal guide rail arranged in an H shape. The drawing machine with three guide rails arranged in an H shape belongs to a cross beam in mechanics. The utility model has the advantages of high stability, high precision and high stability, and both ends of the horizontal guide rail are provided with pulley mechanisms and the pulley balance mechanisms of the longitudinal guide rails to ensure the vertical movement accuracy of the horizontal guide rail. The horizontal guide rail is provided with a transversal parallel slide mechanism which can finish drawing a horizontal long line once. The longitudinal guide rail pulley mechanism is provided with a spring which can make a parallel ruler and other drawing rulers automatically disengage paper surfaces when lines are not drawn. Drawing rules are provided with an L-shaped ruler, a rectangular ruler and a stereo drawing ruler, and the drawing machine with three guide rails arranged in an H shape can adopt quick chartography which combines measuring and drawing. Therefore, the drawing machine with three guide rails arranged in an H shape has the advantages of small drawing error, high accuracy, good stability and clean figure surfaces, and improves the drawing speed and the drawing quality.

Description

Drawing machine with H-type three-guide-rail

The utility model relates to a kind of draught machine, relates more specifically to a kind of H type and arranges three guide rail draught machines.

Draught machine is that the forties imports China into as the machinery of drawing, be quadric chain at first, the imitated trade mark of producing of China is " a doubly speed ", quality of fit between the position, hole of this draught machine and axle, bearing requires very high, and the axis hole site error of parallelogram generally must not be greater than 0.02 millimeter; Gap between each and bearing also requires very little, otherwise error mechanically to be reflected on the drawing rule be fairly obvious.Steel band type draught machine has appearred in the sixties, its cardinal principle is also similar to four connecting rods, but be to replace original directly four connecting rods of type with the steel band structure, its precision mainly is to lean on diameter tolerance, circularity and the concentricity tolerance of wheeled steel to guarantee, because of belt wheel is to reach requirement with the ratio that fine turning lathe is processed easily by position, hole precision.But these two kinds of draught machines all have a common fatal shortcoming, promptly can not adapt to the needs of painting long line, therefore, can only be used to draw generally based on the mechanical part drawings of short-term etc., then can't use the drawing that the long line of massive parallel is arranged.The guide tracked draught machine that Japanese military rattan produces appears in the seventies, it is to be the depth of parallelism and the perpendicularity that two guide rails that T-shape arranges are controlled drawing rule by one group that the both direction of this draught machine parallel moved, and vertical and horizontal are housed check device, after will vertically checking device and checking, can make parallel the moving of drawing rule paint long parallel lines; After will laterally checking device and checking, drawing rule is vertically moved paint long vertical line.And track length is unrestricted, can arbitrarily enlarge to make the area of pictural surface.Because these advantages, the therefore main flow that has become domestic draught machine to produce.But this kind is the two guide rail draught machines of T-shape arrangement and also exists several significant drawbacks: at first, guide rail is T-shape and arranges, belong to cantilever beam character on the mechanics, its accuracy of manufacture requires very high, as long as pulley cooperates with main guide rail error is arranged slightly, by the amplification of twice cantilever, be reflected on the drawing rule, very big error is then arranged, so stability is difficult to reach, even in new, reach requirement, with a period of time, will produce than mistake because of loosening.Moreover what this draught machine used is that two rectangular drawing rulers are mutually independently, the neither one angle of cut, and therefore painting long line can only one section one section ground wiring, is difficult for reaching the smooth requirement of wiring.And the purposes of drawing rule is single, and ratio is incomplete, select for use the ratio drawing that does not have on the chi must add engineer's scale in addition, so drawing efficiency is not high, the chi face is adjacent to drawing, drawing also bedraggles easily during drawing.

The utility model purpose is to seek that a kind of plotting error is little, precision is high, good stability, drawing cleaning, and can draw the high-quality draught machine that drawing rule parallel or vertically long line, that can also use the multiple ratio of multiple use, energy QuickDraw are raised the efficiency.Thereby avoid the various shortcoming of above-mentioned draught machine.

The utility model is to realize like this, at the right and left of drawing board two vertical longitudinal rails that are parallel to each other are arranged, about a cross rail that meets at right angle with longitudinal rail is arranged between two longitudinal rails, cross rail and two longitudinal rails are formed and are three guide rail mechanisms that " H " type is arranged.The following lucite parallel rule of fixing of cross rail, the long line of picture level easily, the vertical of cross rail moves, mainly be by by six ball pulleys and about two roller counterweights, middle couple together the pulley balanced controls of being formed with high-class stainless steel silk rope and bear, the two ends of cross rail are slidingly connected by vertical Guide rollers mechanism and longitudinal rail, in the vertical Guide rollers mechanism three pulleys being housed respectively is embedded in the longitudinal rail, forming rolls connects, rely on the parallel of guide rail, the concentricity precision of straight line precision and pulley guarantees that cross rail can not become flexible up and down, keep directed stable the slip, what the band handle was housed on the cross rail can be along the horizontal parallel sliding mechanism that cross rail laterally slides, pulley yoke in horizontal parallel sliding mechanism has three accurate ball nylon pulleys in position, two upsides wherein at cross rail, downside at cross rail is triangularly arranged, and leans on the parallel of cross rail, the straight line precision is guaranteed the sensitivity that moves horizontally precision and feel of drawing rule; Also be provided with on the pulley yoke and laterally check device, with the precision that guarantees to paint long vertical line, laterally be fixed with semicircular drawing rule bearing in the parallel sliding mechanism, the drawing rule of three kinds of seven multiple uses, multiple ratio on can being rotationally connected on the bearing can improve plotting speed and quality by " the amount picture is in conjunction with the QuickDraw method ".

The utility model has the advantages that there is fulcrum on cross rail two tops on vertical guide rail owing to adopted three guide rail forms of " H " type arrangement, belong to crossbeam character on the mechanics, stability is arranged the cantilever beam of two guide rails considerably beyond T-shape.The two ends of cross rail have vertical Guide rollers mechanism to guarantee the vertical mobile accuracy of cross rail with the pulley balanced controls, can be through long-time application and the depth of parallelism remains unchanged.Drawing rule has adopted L shaped chi with the rectangle chi the vertical angle of cut to be arranged all, can utilize the straight line precision of guide rail once to finish to paint long vertical line and do not need wiring again, can utilizing on the cross rail laterally, parallel sliding mechanism once finishes the long line of level and does not need wiring again, owing to adopt L shaped chi, rectangle chi and stereoscopic drawing chi, the all proportions scale is " ten " font and " the amount picture is in conjunction with the QuickDraw method " that can adopt the advanced person arranged in " worker " font, makes plotting speed surpass other draught machines more than one times.In the vertical Guide rollers mechanism at cross rail two ends spring is housed, can parallel rule and other drawing rule when line drawing not, break away from paper automatically, drawing is kept clean.

The drawing explanation:

Fig. 1 is that the layout of the utility model embodiment is always schemed.

Fig. 2 is the wireline pulley balancing machine composition of the utility model embodiment.

Fig. 3 is the vertical Guide rollers mechanism map of the utility model embodiment.

Fig. 4 is the horizontal parallel sliding mechanism map of the utility model embodiment.

Fig. 5 is the horizontal parallel sliding mechanism cutaway view of the utility model embodiment.

Fig. 6 is the L shaped drawing rule schematic diagram of the utility model embodiment.

Fig. 7 is the rectangle drawing rule schematic diagram of the utility model embodiment.

Fig. 8 is that the 1:1 of the utility model embodiment is just waiting side shaft to survey stereoscopic drawing chi schematic diagram.

Be specific embodiment of the utility model below:

Shown in Fig. 1-5, present embodiment comprises drawing board ［ 1 ］, there are two longitudinal rails that are parallel to each other ［ 2 ］ to be fixed on the right and left of drawing board ［ 1 ］, about a cross rail ［ 5 ］ that meets at right angle with longitudinal rail ［ 2 ］ is arranged between two longitudinal rails ［ 2 ］, cross rail ［ 5 ］ is formed with two longitudinal rails ［ 2 ］ and is three guide rail mechanisms that " H " type is arranged, below cross rail ［ 5 ］, fixing lucite parallel rule ［ 4 ］, the required metric system scale of drawing is arranged on the parallel rule ［ 4 ］, the two ends of cross rail ［ 5 ］ connect vertical Guide rollers mechanism ［ 9 ］, vertical Guide rollers mechanism ［ 9 ］ comprises adjustable plate ［ 23 ］, one end of connecting plate ［ 18 ］ links to each other with adjustable plate ［ 23 ］, the other end is fixed on the cross rail ［ 5 ］, the vertical Guide rollers ［ 17 ］ of three rounded projections arranged is equipped with in the inboard of adjustable plate ［ 23 ］, three vertical Guide rollerses ［ 17 ］ critically are embedded in the longitudinal rail ［ 2 ］, forming rolling relation is slidingly connected vertical Guide rollers mechanism ［ 9 ］ and longitudinal rail ［ 2 ］ formation, rely on the parallel of guide rail, the concentricity precision of straight line precision and pulley guarantees that cross rail can not become flexible up and down, keeps directed stable the slip.The vertical of cross rail ［ 5 ］ moves, mainly be to bear by pulley balanced controls ［ 3 ］, pulley balanced controls ［ 3 ］ have the parallel pulley of guide rail ［ 11 ］ and ［ 13 ］, pulley ［ 15 ］ and ［ 16 ］, band roller counterweight ［ 14 ］ has high-class stainless steel silk ［ 12 ］ to couple together in the middle of this to be formed.Adjustable plate ［ 23 ］ is gone up also has adjusting knob ［ 22 ］, incense coil spring ［ 21 ］ and spring axis ［ 20 ］, incense coil spring ［ 21 ］ is a fulcrum with spring axis ［ 20 ］, by spring action head ［ 19 ］ with connecting plate ［ 18 ］ thus on lift cross rail ［ 5 ］ and parallel rule ［ 4 ］ lifted to fix on the drawing rule on it, break away from the drawing on the drawing board ［ 1 ］, certain clearance is arranged, when cross rail moves as vertical direction, can not wipe dirty drawing and keep clean.Be provided with in the lower end of right side longitudinal rail ［ 2 ］ and vertically check device ［ 10 ］, it can clamp stainless steel wire ［ 12 ］, thereby makes pulley balanced controls ［ 3 ］ motionless, and cross rail ［ 5 ］ just rests on the position of a certain needs like this.Being equipped with on the cross rail ［ 5 ］ can be along the horizontal parallel sliding mechanism ［ 6 ］ that cross rail ［ 5 ］ laterally slides; this mechanism comprises pulley yoke ［ 33 ］; fixing handle ［ 34 ］ on the pulley yoke ［ 33 ］; below pulley yoke ［ 33 ］, be provided with three accurate ball nylon pulleys in position ［ 24 ］; ［ 27 ］ and ［ 28 ］; its pulley ［ 24 ］ is at the downside of cross rail ［ 5 ］; pulley ［ 27 ］ and ［ 28 ］ are at the upside of cross rail ［ 5 ］; and apportion the right and left; be triangularly arranged; three pulleys ［ 24 ］; ［ 27 ］ and ［ 28 ］ and cross rail ［ 5 ］ form and be slidingly matched closely, parallel by cross rail ［ 5 ］; the straight line precision is guaranteed the sensitivity that moves horizontally precision and feel of drawing rule ［ 5 ］.Also be provided with on the pulley yoke ［ 33 ］ and laterally check device ［ 7 ］, it is made up of the spring leaf ［ 25 ］ that a cam ［ 26 ］ and an end are fixed in pulley yoke ［ 33 ］ inboard, when cam ［ 26 ］ when reversing certain angle, cam ［ 26 ］ is pressed on an end of spring leaf ［ 25 ］ on the cross rail ［ 5 ］, then whole horizontal parallel sliding mechanism ［ 6 ］ just can not move, and rests on a certain position.Otherwise cam ［ 26 ］ is counter turns round then that spring leaf ［ 25 ］ unclamps, and laterally parallel sliding mechanism ［ 6 ］ just can arbitrarily slide.Use and laterally check device ［ 7 ］, the precision that can guarantee to paint long vertical line.Fixing semicircular drawing rule bearing ［ 29 ］ at the upside of pulley yoke ［ 33 ］, this semicircular center of circle is axle center ［ 30 ］, drawing rule ［ 8 ］ forms with drawing rule bearing ［ 29 ］ by axle center ［ 30 ］ and is rotationally connected, the outer of drawing rule bearing ［ 29 ］ is dial ［ 32 ］, and hue angle handle ［ 31 ］ is arranged, can regulate the relative angle of drawing rule ［ 8 ］ and parallel rule ［ 4 ］.Drawing rule ［ 8 ］ has three types, and to amount to seven are first kind of chi L shaped drawing rule ［ 35 ］, and totally three, the ratio of first L shaped chi is respectively 1:1,1:2,5:1; Second is 1:5,1:2.5,2:1,4:1; The 3rd is 1:1.5,1:3.The right-angle side place adopts " ten " font scale ratio, all the other employings " worker " font scale ratio.Second kind is rectangle drawing rule ［ 36 ］, and rectangle drawing rule ［ 36 ］ also has three, and three ratio is identical with L shaped drawing rule ［ 35 ］ with scale.The third is that 1:1 is just waiting the edge-on volume rendering chi of side shaft ［ 37 ］, and stereoscopic drawing chi ［ 37 ］ is three fork-shapeds, and each angle limit scale requires design according to GB 1:1, and scale is arranged by " worker " font.Paint general figures and adopt rectangle chi ［ 36 ］; When painting larger-size figure, adopt L shaped chi ［ 35 ］; Paint to adopt when just waiting the side stereogram and just waiting edge-on volume rendering chi ［ 37 ］, can improve plotting speed and drawing quality by " the amount picture is in conjunction with the QuickDraw method ".

Claims (5)

1, a kind of draught machine, comprise drawing board [1], with the longitudinal rail [2] and the pulley balanced controls that are fixed on drawing board [1] the right and left, it is characterized in that about a cross rail that meets at right angle [5] is arranged between two longitudinal rails [2], cross rail [5] becomes the H type to arrange with two longitudinal rails [2], below cross rail [5], fixing lucite parallel rule [4], the two ends of cross rail [5] connect vertical guide wheel pulley mechanism [9], and have three vertical Guide rollerses [17] to be embedded in the longitudinal rail [2] in the vertical Guide rollers mechanism, forming rolls connects, and being equipped with on the cross rail [5] can be along the horizontal parallel sliding mechanism [6] that cross rail [5] moves.

2, draught machine as claimed in claim 1, it is characterized in that handle ［ 34 ］ is arranged in the horizontal parallel sliding mechanism ［ 6 ］, and form with cross rail ［ 5 ］ by three ball nylon pulleys ［ 24 ］, ［ 27 ］, ［ 28 ］ and to be slidingly matched closely, laterally the bottom righthand side of parallel sliding mechanism ［ 6 ］ is equipped with by what cam ［ 26 ］ and spring leaf ［ 25 ］ were formed and laterally checks device ［ 7 ］.

3, draught machine as claimed in claim 2, it is characterized in that being fixed with in the horizontal parallel sliding mechanism ［ 6 ］ semicircular drawing rule bearing ［ 29 ］, this semicircular center of circle is axle center ［ 30 ］, drawing rule forms with drawing rule bearing ［ 29 ］ by axle center ［ 30 ］ and is rotationally connected, the outer of drawing rule bearing ［ 29 ］ is dial ［ 32 ］, and hue angle handle ［ 31 ］ is arranged.

4, draught machine as claimed in claim 3 is characterized in that L shaped drawing rule ［ 35 ］ is housed on the drawing rule bearing ［ 29 ］, and L shaped drawing rule has three, and the ratio of first L shaped chi is respectively 1:1,1:2,5:1; Second is 1:5,1:2.5,2:1,4:1; The 3rd is 1:1.5,1:3.The right-angle side place adopts " ten " font scale ratio, all the other employings " worker " font scale ratio.

5, draught machine as claimed in claim 3, it is characterized in that being equipped with on the drawing rule bearing ［ 29 ］ 1:1 is just waiting side shaft to survey stereoscopic drawing chi ［ 37 ］, stereoscopic drawing chi ［ 37 ］ is three fork-shapeds, and each angle limit scale requires design according to GB 1:1, and scale is arranged by " worker " font.

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