CN108789747B - Method for processing twisted handrail for stair and method for processing stair handrail - Google Patents
Method for processing twisted handrail for stair and method for processing stair handrail Download PDFInfo
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- CN108789747B CN108789747B CN201810603994.4A CN201810603994A CN108789747B CN 108789747 B CN108789747 B CN 108789747B CN 201810603994 A CN201810603994 A CN 201810603994A CN 108789747 B CN108789747 B CN 108789747B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27M—WORKING OF WOOD NOT PROVIDED FOR IN SUBCLASSES B27B - B27L; MANUFACTURE OF SPECIFIC WOODEN ARTICLES
- B27M3/00—Manufacture or reconditioning of specific semi-finished or finished articles
- B27M3/12—Manufacture or reconditioning of specific semi-finished or finished articles of railings, stairs, stair stringers, ladders, or parts thereof
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27M—WORKING OF WOOD NOT PROVIDED FOR IN SUBCLASSES B27B - B27L; MANUFACTURE OF SPECIFIC WOODEN ARTICLES
- B27M1/00—Working of wood not provided for in subclasses B27B - B27L, e.g. by stretching
- B27M1/08—Working of wood not provided for in subclasses B27B - B27L, e.g. by stretching by multi-step processes
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Abstract
The invention provides a processing method of a twisted handrail for a stair and a processing method of a stair handrail, and relates to the technical field of building material processing. According to the processing method of the twisted handrail for the stair, accurate processing can be achieved without actually processing the twisted handrail on site or building a workshop large model frame by sequentially carrying out the processes of on-site measurement, calculation of radius of the handrail, drawing and processing of twist degree, milling treatment and multi-section splicing; and the torsion degree is very natural and smooth. The processing method of the stair handrail comprises the processing method of the twisted handrail for the stair, can avoid on-site construction in the processing process of the stair handrail, saves labor and materials, and is suitable for popularization and application.
Description
Technical Field
The invention relates to the technical field of building material processing, in particular to a processing method of a twisted handrail for a stair and a processing method of a stair handrail.
Background
The traditional solid wood twisted handrail processing needs to be carried out on site, or a model frame is built in a workshop, the radian and the twist degree can be roughly determined by repeatedly planing one handrail according to the basic processing radian twist degree. The process is labor-consuming and laborious, materials are wasted when the model frame is built, and the radian and the torsion degree are along with the basic model frame, so that the embodied radian and torsion degree are not natural and smooth, and the ideal effect is difficult to achieve.
Disclosure of Invention
The invention aims to provide a method for processing a twisted handrail for a stair, which aims to avoid field processing and reduce the labor intensity in the processing process.
Another object of the present invention is to provide a method for processing a stair railing, which can facilitate the processing of the stair railing and reduce labor cost.
The invention is realized by the following steps:
a processing method of a twisted handrail for stairs comprises the following steps:
(1) and (3) field measurement: measuring the size of the surface of a multi-step corresponding to the stair at the handrail to be installed, and manufacturing a stair template corresponding to each step, wherein the two ends of the stair template corresponding to the handrail to be installed are respectively a first installation end and a second installation end;
(2) calculation of handrail radius: drawing a plane handrail circular arc according to a plurality of stair templates, dividing the plane handrail circular arc into a plurality of sections, and respectively calculating the radius of an actual handrail circular arc corresponding to each section of plane handrail circular arc;
(3) drawing and processing the torsion degree: drawing an auxiliary twist degree line on the handrail blank according to the radius of a section of actual handrail, and processing the twist degree;
(4) milling: milling the handrail blank to obtain a section of handrail finished product;
(5) multi-section splicing: and processing a corresponding section of handrail finished product according to the arc of each section of plane handrail, and then splicing and assembling.
Further, in a preferred embodiment of the present invention, the calculation process of the radius of the handrail comprises the following steps:
splicing a plurality of stair templates according to the sequence of corresponding steps to form a stair plan, drawing a first handrail arc suitable for the edge corresponding to the edge of a first mounting end of the stair plan, and drawing a second handrail arc suitable for the edge corresponding to the edge of a second mounting end of the stair plan;
calculating the average step width and the average step height corresponding to the multi-step steps, manufacturing a first right-angle triangle by taking the average step width as a horizontal right-angle side and the average step height as a vertical right-angle side, and calculating the length of a bevel edge, a horizontal included angle and a vertical included angle;
dividing a first handrail circular arc and a second handrail circular arc into a plurality of sections of processing circular arcs, taking one section of the processing circular arc to draw chord length and chord height of the processing circular arc, taking the chord length of the processing circular arc as a right-angle side to manufacture a second right-angle triangle which is similar to the first right-angle triangle, wherein the chord length of the processing circular arc corresponds to a horizontal right-angle side in the first right-angle triangle to obtain an inclined long side of the second right-angle triangle, drawing the chord height at the midpoint of the inclined long side of the second right-angle triangle, the chord height on the inclined long side of the second right-angle triangle is equal to the chord height of the processing circular arc, and drawing an actual section of handrail circular arc corresponding to the inclined;
and calculating the radius of the actual handrail section according to the inclined long edge and the chord height of the second right triangle.
Further, in a preferred embodiment of the present invention, the process of drawing and processing the twist degree includes the following steps:
and manufacturing a handrail template for drawing the torsion degree according to the radius of the actual section of handrail, and drawing a template longitudinal axis and a template central axis which correspond to the handrail template on the handrail template.
Further, in a preferred embodiment of the present invention, the process of drawing and processing the twist degree further includes the following steps:
drawing a handrail radian line corresponding to the radius of the handrail, two longitudinal axes corresponding to the handrail radian line and a central axis corresponding to the handrail radian line on the edges of the upper and lower surfaces of the handrail blank, drawing side axis lines on the edges of the handrail blank corresponding to the two longitudinal axes, drawing a torsional bevel edge on the side surface corresponding to the edge of the central axis, wherein the torsional bevel edge is connected with one end of the central axis of the top surface, and the included angle between the torsional bevel edge and the edge of the top surface of the handrail blank is equal to a vertical included angle;
processing the twisting degrees of two side edges of the handrail blank according to lines, drawing a first end face twisting degree line of the edge of the handrail radian line corresponding to two end faces, wherein the included angle between the first end face twisting degree line and the side edge of the end face corresponding to the handrail radian line is 90 degrees, and extending the first end face twisting degree line to the opposite side edge;
and drawing a second end face twist line on the other end face along the edge of the straight lath by taking one end of the first end face twist line far away from the handrail radian line as a starting point, and cleaning the twist according to the line.
Further, in a preferred embodiment of the present invention, the process of drawing the handrail camber line, the longitudinal axis and the neutral axis on the handrail stock comprises the steps of:
and drawing a handrail radian line, a longitudinal axis and a central axis on the handrail blank according to the handrail template, wherein the longitudinal axis corresponds to the longitudinal axis of the template, the central axis corresponds to the central axis of the template, and the handrail radian line corresponds to the edge arc of the handrail template.
Further, in a preferred embodiment of the present invention, the process of manufacturing the handrail template comprises: the middle-density fiber board is processed according to the radius and the length of an actual handrail section.
Further, in the preferred embodiment of the present invention, the handrail stock is processed on a band saw in a wire processing twist;
the first end face twist line is drawn with a curved ruler.
Further, in a preferred embodiment of the present invention, the multi-segment splicing process comprises the following steps:
and processing a section of handrail finished product corresponding to each section of first handrail circular arc and each section of second handrail circular arc, splicing the handrail finished products corresponding to the sections of first handrail circular arcs in sequence, and splicing the handrail finished products corresponding to the sections of second handrail circular arcs in sequence.
Further, in the preferred embodiment of the invention, two adjacent handrail finished products are connected by a screw rod, a mortise is formed at the joint, and a wood chip tenon is arranged for positioning.
A processing method of a stair handrail comprises the processing method of the twisted handrail for the stair.
The invention has the beneficial effects that: the processing method of the twisted handrail for the stair, which is obtained through the design, sequentially comprises the processes of field measurement, calculation of handrail radius, drawing and processing of twist degree, milling treatment and multi-section splicing, wherein the field measurement is to measure the size of each step on the field and manufacture a stair template, then draw a plane handrail circular arc according to the stair template, divide the plane handrail circular arc into a plurality of sections and calculate the radius of an actual handrail circular arc corresponding to each section of handrail circular arc; and (4) carrying out torsion processing on the handrail blank according to the actual handrail arc radius corresponding to each section of handrail arc, and splicing the multi-section handrail finished products after milling. Therefore, the processing method of the twisted handrail for the stair provided by the invention can achieve accurate processing without actually processing on site or building a workshop large model frame, and has high processing speed and low cost. The invention also provides a processing method of the stair handrail, which comprises the processing method of the twisted handrail for the stair, can avoid field construction in the processing process of the stair handrail, saves labor and materials, and is suitable for popularization and application.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
FIG. 1 is a schematic diagram of a plan view of a staircase provided by an embodiment of the present invention;
FIG. 2 is a first schematic diagram of calculating a radius of a handrail;
FIG. 3 is a second schematic view of calculating a radius of a handrail;
FIG. 4 is a schematic view of a handrail template;
figure 5 is a schematic illustration of a twist line drawn on a handrail stock;
FIG. 6 is a first schematic of twist generation;
FIG. 7 is a second schematic of twist generation;
FIG. 8 is a process diagram of second end face twist line drawing;
FIG. 9 is a first perspective view of the twist lines of FIG. 8;
FIG. 10 is a second perspective view of the twist lines of FIG. 8;
fig. 11 is a cross-sectional view after milling.
Icon: 10-a first mounting end; 20-a second mounting end; 101-hypotenuse length; 102-horizontal included angle; 103-vertical included angle; 104-arc; 105-arc; 106-template longitudinal axis; 107-central axis of the template; 108-twist slope; 109-included angle; 111-handrail camber line; 112-longitudinal axis; 113-central axis; 114-lateral axis; 115-first end face twist line; 116-second end face twist line.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings of the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention. Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the equipment or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
The embodiment of the invention provides a processing method of a twisted handrail for a stair, which comprises the following steps:
(1) in situ measurement
Measuring the size of the surface of a plurality of steps corresponding to the stair to be installed with the handrail, and manufacturing a stair template corresponding to each step, wherein the two ends of the stair template corresponding to the handrail to be installed are respectively a first installation end 10 and a second installation end 20.
Specifically, at the stair steps where the twisted handrail needs to be manufactured, the size of each stair step is measured respectively to manufacture the stair template corresponding to each stair step, and the plurality of stair templates can be sequentially spliced according to the sequence of the stair as shown in fig. 1.
(2) Calculation of handrail radius
Generally speaking, a plane handrail circular arc is drawn according to a plurality of stair templates, then the plane handrail circular arc is divided into a plurality of sections, and the radius of the actual handrail circular arc corresponding to each section of plane handrail circular arc is calculated respectively.
a. The drawing of the plane handrail arc comprises the following steps: a plurality of stair templates are spliced according to the sequence of corresponding steps to form a stair plan, a first handrail arc which is suitable for the edge is drawn on the edge of the first mounting end 10 corresponding to the stair plan, and a second handrail arc which is suitable for the edge is drawn on the edge of the second mounting end 20 corresponding to the stair plan.
It should be added that the drawing of the first handrail arc and the second handrail arc requires repeated searching to draw the arc fitting with the first installation end 10 and the second installation end 20 of the stair plan.
b. Drawing a plane triangle: referring to fig. 2, an average step width and an average step height corresponding to the multi-step are calculated, a first right-angle triangle is made with the average step width as a horizontal right-angle side and the average step height as a vertical right-angle side, and a hypotenuse length 101, a horizontal included angle 102 and a vertical included angle 103 are calculated.
Specifically, the average step width refers to the surface width of a single step, the average step height refers to the height of the surface of the single step, and the steps are generally equal in height. The first right triangle is drawn as an aid in subsequent radius calculations.
c. And (3) calculating the radius: referring to fig. 1 and 3, a first handrail circular arc and a second handrail circular arc are divided into a plurality of sections of processing circular arcs, one section of the processing circular arcs is taken to draw chord length and chord height of the processing circular arcs, a second right-angle triangle is manufactured by taking the chord length of the processing circular arcs as a right-angle side, the second right-angle triangle is similar to the first right-angle triangle, the chord length of the processing circular arcs corresponds to a horizontal right-angle side in the first right-angle triangle to obtain an inclined long side of the second right-angle triangle, the chord height is drawn at the middle point of the inclined long side of the second right-angle triangle, the chord height of the inclined long side of the second right-angle triangle is equal to the chord height of the processing circular arcs, and an actual; and calculating the radius of the actual handrail section according to the inclined long edge and the chord height of the second right triangle.
Specifically, arc 104 is a machined arc taken from fig. 1, arc 105 is an actual handrail arc, and the hypotenuse and chordal height in the second right triangle are calculated according to the triangle-like principle, the radius of the first handrail is calculated according to the existing formula, wherein the radius r is (4 × chordal height)2+ chord length2) Div (8 × chord height).
(3) Drawing and processing of torsion
In general terms: and drawing an auxiliary twist degree line on the handrail blank according to the radius and the vertical included angle of the actual handrail, and processing the twist degree. The drawing of the twist degree can be defined according to the vertical included angle 103 in the first right-angle triangle, which is an important link in the invention.
a. Manufacturing a handrail template: as shown in fig. 4, a handrail template for plotting a twist is created from the radius of an actual handrail segment, and a template longitudinal axis 106 and a template central axis 107 corresponding to the handrail template are plotted on the handrail template.
Specifically, the handrail template is manufactured on the medium density fiberboard according to the radius and the length of an actual section of handrail in the manufacturing process, and the template plays an auxiliary role in drawing the subsequent twist degree.
b. And (3) processing the twist degree: referring to fig. 5, first, a handrail curvature line 111 corresponding to a handrail radius, two longitudinal axes 112 corresponding to the handrail curvature line 111, and a central axis 113 corresponding to the handrail curvature line 111 are drawn at edges of upper and lower surfaces of a handrail blank, a side axis 114 is drawn at edges of the handrail blank corresponding to the two longitudinal axes 112, a twist bevel 108 is drawn on a side surface corresponding to an edge of the central axis 113, the twist bevel 108 is connected to one end of the central axis 113 of a top surface, and an angle between the twist bevel 108 and the edge of the top surface of the handrail blank is equal to a vertical angle 103, that is, an angle 109 is equal to a vertical angle 103.
It is noted that the direction of the twist slope 108 is as shown in figure 5, and that the twist slope 108 should be perpendicular to the ground when the handrail stock is placed on a slope formed by the average step width and the average step height.
Specifically, the process of drawing the handrail camber line 111, the longitudinal axis 112 and the neutral axis 113 on the handrail stock comprises the following steps: a handrail curve 111, a longitudinal axis 112 and a central axis 113 are drawn on the handrail stock from the handrail template, wherein the longitudinal axis 112 corresponds to the template longitudinal axis 106, the central axis 113 corresponds to the template central axis 107 and the handrail curve 111 corresponds to the edge arc of the handrail template.
Specifically, twist occurs substantially after the twist slope 108 is drawn, and the principle of twist is illustrated in connection with fig. 6-7, which is equivalent to the translation of two handrail forms along the longitudinal axis 106 of the forms, creating a twist.
Next, referring to fig. 8-10, the handrail blank is processed into two side-edge curvature twist lines according to lines, a first end-face twist line 115 corresponding to the two end faces of the edge of the handrail curvature line 111 is drawn, an included angle between the first end-face twist line 115 and the side edge of the end face corresponding to the handrail curvature line 111 is 90 degrees, and the first end-face twist line 115 is extended to the other opposite side edge.
Specifically, the handrail blank is processed on the band saw according to the linear processing torsion degree, the process of processing the torsion degree in the step is the prior art, and the processing process is not repeated in a mode of cutting according to the linear processing.
Specifically, the first end face twist line 115 is drawn using a curved ruler, which facilitates drawing using a vertical angle of the curved ruler.
Finally, a second end face twist line 116 is drawn along the edge of the straight lath on the other end face by taking one end of the first end face twist line 115 far away from the handrail radian line 111 as a starting point, and the twist is cleaned according to the line. Specifically, straight strips are drawn along the curvature of the handrail, and are drawn on both sides, i.e., second end twist lines 116 are drawn on both opposing sides.
Specifically, the process of cleaning the twist degree by wire is also a common process in the art, and will not be described in detail.
(4) Milling treatment
The handrail blank is milled to obtain a section of finished handrail, the milling process is a general handrail processing process, and the cross section after milling is shown in fig. 11.
Specifically, the bottom surface of the handrail is curved, so that the handrail is not used for milling a plane blank on a vertical mill, and a small slightly convex wood platform is added on the surface of the vertical mill, so that the bottom surface of the handrail is ensured to be too close to the small wood. And (3) nailing 5mm middle fiber board strips which are narrower than the handrail template on the bottom surface of the handrail square stock by using a piling nail gun, and then nailing the handrail template on the 5mm middle fiber board strips. The handrail template and the handrail material are separated by 5mm, the handrail template is twisted along the handrail, the milling cutter cannot mill the template when the handrail template is machined on an end mill, the handrail template can always lean against a guide gun, the safety standard is guaranteed that the twisted handrail is milled, a dowel pin is pulled out after one handrail template is milled, the handrail template and the lath are taken down and are nailed on the other handrail, and the operation is repeated until the operation is complete.
(5) Multi-segment splice
And processing a corresponding section of handrail finished product according to the arc of each section of plane handrail, and then splicing and assembling. In fig. 1, each section of the plane handrail circular arc is processed into a corresponding section of finished handrail according to the steps, and then the finished handrail is spliced and fixed by a conventional method and finally the handrail is installed by spraying paint.
In some embodiments, the multi-segment splicing process comprises the steps of: and processing a section of handrail finished product corresponding to each section of first handrail circular arc and each section of second handrail circular arc, splicing the handrail finished products corresponding to the sections of first handrail circular arcs in sequence, and splicing the handrail finished products corresponding to the sections of second handrail circular arcs in sequence.
In some embodiments, two adjacent handrail finished products are connected by a screw rod, a mortise is formed at the joint, and a wood chip tenon is arranged for positioning.
It is added that the advantages of the method provided by the application relative to the traditional method include: (1) the standard radian, the average slope and the uniform torsion are taken, the torsion is natural and smooth, and the accurate processing can be realized without going to the site or a workshop large model frame in the manufacturing process; (2) high speed, good effect, labor and material saving and product grade improvement.
The embodiment of the invention also provides a processing method of the stair handrail, which comprises the processing method of the twisted handrail for the stair and can also comprise the processing of a common non-twisted handrail. The processing method of the stair handrail avoids long-time on-site construction, and the processing process is time-saving and labor-saving.
In summary, the invention provides a method for processing a twisted handrail for a stair, which sequentially comprises the processes of field measurement, calculation of handrail radius, drawing and processing of twist degree, milling treatment and multi-section splicing, wherein the field measurement is to measure the size of each step on the field and manufacture a stair template, then draw a plane handrail arc according to the stair template, divide the plane handrail arc into a plurality of sections, and calculate the radius of an actual handrail arc corresponding to each section of handrail arc; and (4) carrying out torsion processing on the handrail blank according to the actual handrail arc radius corresponding to each section of handrail arc, and splicing the multi-section handrail finished products after milling. Therefore, the processing method of the twisted handrail for the stair provided by the invention can achieve accurate processing without actually processing on site or building a workshop large model frame, and has high processing speed and low cost.
The invention also provides a processing method of the stair handrail, which comprises the processing method of the twisted handrail for the stair, can avoid field construction in the processing process of the stair handrail, saves labor and materials, and is suitable for popularization and application.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (9)
1. A processing method of a twisted handrail for stairs is characterized by comprising the following steps:
(1) and (3) field measurement: measuring the size of the surface of a multi-step corresponding to a stair at the position of a handrail to be installed, and manufacturing a stair template corresponding to each step, wherein the two ends of the stair template corresponding to the handrail to be installed are respectively a first installation end and a second installation end;
(2) calculation of handrail radius: drawing a plane handrail circular arc according to a plurality of stair templates, dividing the plane handrail circular arc into a plurality of sections, and respectively calculating the radius of an actual handrail circular arc corresponding to each section of plane handrail circular arc;
(3) drawing and processing the torsion degree: drawing an auxiliary twist degree line on the handrail blank according to the radius of a section of actual handrail, and processing the twist degree;
(4) milling: milling the handrail blank to obtain a section of handrail finished product;
(5) multi-section splicing: processing a corresponding section of handrail finished product according to each section of plane handrail circular arc, and then splicing and assembling;
wherein, the calculation process of the radius of the handrail comprises the following steps:
splicing a plurality of stair templates according to the sequence of corresponding steps to form a stair plan, drawing a first handrail arc suitable for the edge corresponding to the edge of the first mounting end of the stair plan, and drawing a second handrail arc suitable for the edge corresponding to the edge of the second mounting end of the stair plan;
calculating the average step width and the average step height corresponding to the multi-step, manufacturing a first right-angle triangle by taking the average step width as a horizontal right-angle side and the average step height as a vertical right-angle side, and calculating the length of a bevel edge, a horizontal included angle and a vertical included angle;
dividing the first handrail circular arc and the second handrail circular arc into a plurality of sections of processing circular arcs, taking one section of the processing circular arc to draw chord length and chord height of the processing circular arc, taking the chord length of the processing circular arc as a right-angle side to manufacture a second right-angle triangle which is similar to the first right-angle triangle, wherein the chord length of the processing circular arc corresponds to a horizontal right-angle side in the first right-angle triangle to obtain an inclined long side of the second right-angle triangle, drawing the chord height at the middle point of the inclined long side of the second right-angle triangle, the chord height on the inclined long side of the second right-angle triangle is equal to the chord height of the processing circular arc, and drawing an actual section of the handrail circular arc corresponding to the inclined long side;
and calculating the radius of the actual handrail section according to the inclined long edge and the chord height of the second right triangle.
2. The method of manufacturing a twisted handrail for stairs of claim 1, wherein the drawing and manufacturing process of the twist comprises the steps of:
and manufacturing a handrail template for drawing the torsion degree according to the radius of an actual section of handrail, and drawing a template longitudinal axis and a template central axis which correspond to the handrail template on the handrail template.
3. The method of manufacturing a twisted handrail for stairs of claim 2, further comprising the steps of during the drawing and manufacturing of the twist level:
drawing a handrail radian line corresponding to the radius of a handrail, two longitudinal axes corresponding to the handrail radian line and a central axis corresponding to the handrail radian line on the edges of the upper and lower surfaces of the handrail blank, drawing side axis lines on the edges of the handrail blank corresponding to the two longitudinal axes, drawing a torsion bevel edge on the side surface corresponding to the edge of the central axis, wherein the torsion bevel edge is connected with one end of the central axis on the top surface, and the included angle between the torsion bevel edge and the edge of the top surface of the handrail blank is equal to the vertical included angle;
processing the twisting degrees of two side edges of the handrail blank according to lines, drawing a first end face twisting degree line of the edge of the handrail radian line corresponding to two end faces, wherein the included angle between the first end face twisting degree line and the side edge of the end face corresponding to the handrail radian line is 90 degrees, and extending the first end face twisting degree line to the opposite side edge;
and drawing a second end face torsion line on the other end face along the straight lath by taking one end of the first end face torsion line far away from the handrail radian line as a starting point, and cleaning the torsion according to the line.
4. The method of manufacturing a twisted handrail for stairs of claim 3, wherein the process of drawing the handrail camber line, the longitudinal axis and the central axis on the handrail blank comprises the steps of:
drawing the handrail radian lines, the longitudinal axis and the central axis on the handrail blank according to the handrail template, wherein the longitudinal axis corresponds to the longitudinal axis of the template, the central axis corresponds to the central axis of the template, and the handrail radian lines correspond to the edge arcs of the handrail template.
5. The method of manufacturing a twisted handrail for stairs of claim 3, wherein the manufacturing process of the handrail template comprises: the middle-density fiber board is processed according to the radius and the length of an actual handrail section.
6. The method of claim 3, wherein the step of twisting the handrail blank into a wire is performed on a band saw;
the first end face twist line is drawn with a curved ruler.
7. The method of manufacturing a twisted handrail for stairs of claim 3, wherein the multi-segment splicing process comprises the steps of:
and processing a section of handrail finished product corresponding to each section of the first handrail circular arc and each section of the second handrail circular arc, splicing the handrail finished products corresponding to the sections of the first handrail circular arcs in sequence, and splicing the handrail finished products corresponding to the sections of the second handrail circular arcs in sequence.
8. The method as claimed in claim 7, wherein the two adjacent handrail products are connected by a screw rod, and the joint is provided with a mortise and a wood chip tenon for positioning.
9. A method of manufacturing a stair handrail, comprising the method of manufacturing a twisted stair handrail of any one of claims 1 to 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810603994.4A CN108789747B (en) | 2018-06-12 | 2018-06-12 | Method for processing twisted handrail for stair and method for processing stair handrail |
Applications Claiming Priority (1)
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| CN104947866A (en) * | 2015-07-13 | 2015-09-30 | 中铁建工集团有限公司 | Open type spiral staircase constructed by casting fair-faced concrete folded plates in situ and construction method of spiral staircase |
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| CN106313255A (en) * | 2016-08-18 | 2017-01-11 | 重庆名匠家具制造有限公司 | Manufacturing method for solid-wood stairway |
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| CN2547803Y (en) * | 2001-08-10 | 2003-04-30 | 李达 | Star-mounting rotary stairway |
| CN101078238A (en) * | 2007-07-12 | 2007-11-28 | 中冶京唐建设有限公司 | Method of manufacturing double-distortion arc box body structure |
| CN101823277A (en) * | 2009-03-05 | 2010-09-08 | 烟台立信木业有限公司 | Making method of curved stair base beam and curved stair handrail and horizontal forming press |
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