CN109014973B - Upright post of vertical numerical control machine tool and manufacturing method thereof - Google Patents
Upright post of vertical numerical control machine tool and manufacturing method thereof Download PDFInfo
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- CN109014973B CN109014973B CN201811000251.4A CN201811000251A CN109014973B CN 109014973 B CN109014973 B CN 109014973B CN 201811000251 A CN201811000251 A CN 201811000251A CN 109014973 B CN109014973 B CN 109014973B
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 19
- 238000003466 welding Methods 0.000 claims abstract description 52
- 238000005192 partition Methods 0.000 claims description 38
- 230000003014 reinforcing effect Effects 0.000 claims description 20
- 238000000034 method Methods 0.000 claims description 10
- 238000005452 bending Methods 0.000 claims description 7
- 238000005728 strengthening Methods 0.000 claims 2
- 239000000463 material Substances 0.000 abstract description 13
- 238000005266 casting Methods 0.000 description 10
- 230000008569 process Effects 0.000 description 7
- 238000013461 design Methods 0.000 description 6
- 238000012545 processing Methods 0.000 description 6
- 229910000831 Steel Inorganic materials 0.000 description 5
- 238000003754 machining Methods 0.000 description 5
- 239000010959 steel Substances 0.000 description 5
- 230000008901 benefit Effects 0.000 description 4
- 238000011161 development Methods 0.000 description 4
- 230000001965 increasing effect Effects 0.000 description 4
- 125000006850 spacer group Chemical group 0.000 description 4
- 238000005520 cutting process Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000006870 function Effects 0.000 description 3
- 230000014759 maintenance of location Effects 0.000 description 3
- 230000003068 static effect Effects 0.000 description 3
- 229910001208 Crucible steel Inorganic materials 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000003801 milling Methods 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 238000012827 research and development Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
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- 238000003912 environmental pollution Methods 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q1/00—Members which are comprised in the general build-up of a form of machine, particularly relatively large fixed members
- B23Q1/01—Frames, beds, pillars or like members; Arrangement of ways
- B23Q1/015—Frames, beds, pillars
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K31/00—Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups
- B23K31/02—Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups relating to soldering or welding
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Abstract
The invention relates to a vertical column of a vertical numerical control machine tool and a manufacturing method thereof. The invention integrally casts the guide rail seat and the front wall, thereby improving the local rigidity of the guide rail while ensuring the accuracy of the guide rail. The cast-weld combined and mainly welded upright post structure avoids the influence of welding stress and deformation on the rigidity of the guide rail, and ensures the uniformity of the material and performance of the guide rail supporting part.
Description
Technical Field
The invention relates to the field of numerical control machine tools, in particular to a tube plate structure upright post of a high-precision vertical numerical control machine tool based on a cast-weld composite process and a manufacturing method thereof.
Background
The numerical control machine tool is a 'working machine' and basic equipment in the high-end equipment manufacturing industry, and has wide application in the fields of aerospace, automobiles, strategically emerging industries and national defense and military industry. The technical level and the holding quantity of the numerical control machine tool become important indexes of the national manufacturing industry level, the industrial modernization degree and the national comprehensive competitiveness. The self-supporting rate of the middle-high end numerical control machine tool industry in China is seriously low, the machine tool industry has a great gap with the world advanced state in the aspects of design research and development, material technology, parts and the like, and the problems of poor precision retention, low reliability, imperfect functions, dependence of core parts and high-grade numerical control systems on import and the like exist. Meanwhile, structural members such as a lathe bed and a column (hereinafter referred to as a lathe bed) are used as key parts of the machine tool, the structural design and the manufacturing method of the machine tool are single, and factors such as material metallurgy, mechanical property, stress deformation, damping property, dimensional accuracy and the like have less research on the influence rule of the machine tool processing accuracy and accuracy retention thereof, so that the machine tool has become the bottleneck for restricting the development of high-grade numerical control machine tools in China. In the world, the material forming machine tool and the large-scale metal cutting machine tool are commonly adopting a welding structure lathe bed, the proportion of welding parts of the machine tools in industrial developed countries such as America, japanese, germany and the like to the total weight of equipment is 70-80%, and the requirements on the processing precision and the precision retention of high-grade numerical control machine tools (vertical processing centers and planer milling machines) are higher, so that the development period is shortened, the manufacturing cost is reduced, the market demands of personalized customization are met, the welding structure lathe bed is adopted abroad, and the machine tools are successfully applied. Research and development of the welding structure of the machine tool body and application are lagged in China, so that research such as numerical simulation analysis of the welding structure body and advanced welding technology and equipment for the golden cutting machine tool is urgently needed to be developed, the precision of the welding structure body is improved, successful popularization and mature application of typical machine tools such as numerical control vertical machining centers and planer-type milling machines are realized, and market demands are met.
At present, an upright post of a numerical control machine mainly adopts an iron casting, the casting process is complex, the development and manufacturing period is long, the cost is high, and the requirement of the numerical control machine on the delivery period is difficult to meet; the development trend is that the lathe bed is designed and manufactured by adopting a welding process with high productivity utilization rate and relatively small environmental pollution rate.
Disclosure of Invention
The invention provides a stand column of a vertical machine tool, which is formed by jointly surrounding a front wall, a first side wall, a rear wall and a second side wall, wherein a guide rail seat is arranged on the front wall, two guide rails which are parallel to each other are arranged on the outer surface of the guide rail seat, and the guide rail seat and the front wall are integrally cast and formed.
Furthermore, the upright post of the vertical machine tool provided by the invention further comprises a triangular reinforcing rib, and the triangular reinforcing rib is arranged between the guide rail seat and the guide rail.
Further, the upright post of the vertical machine tool provided by the invention further comprises an upper cover plate, a lower cover plate and side wall rib plates, wherein the upper cover plate and the lower cover plate are respectively arranged at the top end and the bottom end of the upright post, and the side wall rib plates are arranged between the lower cover plate and the first side wall and between the lower cover plate and the second side wall.
Furthermore, the upright post of the vertical machine tool provided by the invention further comprises a support tube, one end of the support tube is welded with the inner surface of the guide rail seat, and the other end of the support tube is welded with the inner surface of the rear wall.
Further, the support tube has a hollow structure and is cylindrical in shape.
Further, the support pipes are divided into two parallel rows, the support pipes in the first row are arranged along the extending direction of the first guide rail, the support pipes in the second row are arranged along the extending direction of the second guide rail, the number of the support pipes in the first row is equal to that of the support pipes in the second row, and the positions of the support pipes are mutually corresponding.
Furthermore, the upright post of the vertical machine tool provided by the invention further comprises a longitudinal partition plate arranged in the inner cavity of the upright post, and the outer periphery of the longitudinal partition plate is respectively welded and connected with the front wall, the first side wall, the rear wall and the second side wall.
Further, the longitudinal partition plate is provided with a rectangular frame structure, and a triangular reinforcing structure is arranged between two adjacent sides of the longitudinal partition plate, which are mutually perpendicular.
The invention also provides a manufacturing method of the upright post of the vertical numerical control machine tool, which comprises the following steps:
s1, welding a support tube into a reserved hole on the inner surface of a guide rail seat which is integrally cast and formed with the front wall, wherein the support tube is vertical to the guide rail seat;
s2, welding a first side wall and a second side wall to two ends of the front wall, wherein the first side wall and the second side wall are parallel to each other and respectively vertical to the front wall;
s3, connecting the longitudinal partition plates with the front wall, the first side wall and the second side wall respectively through welding, wherein when the number of the longitudinal partition plates exceeds one, the longitudinal partition plates are welded sequentially by taking the middle part of the front wall as a starting point and respectively welding the longitudinal partition plates to the upper end and the lower end of the front wall;
s4, welding the rear wall with the support tube, the longitudinal partition plate, the first side wall and the second side wall.
Further, the invention provides a method for manufacturing the upright post of the vertical numerical control machine tool, which further comprises the following steps:
s5, respectively welding an upper cover plate and a lower cover plate at the upper end and the lower end of the upright post;
s6, a side wall rib plate is welded between the first side wall and the lower cover plate, and/or welded between the second side wall and the lower cover plate.
In particular, the invention has the following advantages:
the invention overcomes the defects of the vertical column structure of the existing vertical machine tool and the casting manufacturing process thereof, fully plays the respective advantages of the casting and welding processes, adopts the manufacturing process of mainly welding and combining cast welding, improves the local rigidity of the vertical column structure by the integral casting processing of the guide rail seat and the front wall, and ensures the accuracy of the guide rail by combining cast welding.
The welded part of the machine tool upright post adopts the structural design of pipe plate combination, and through the arrangement of the supporting pipe and the longitudinal partition plate, the integral rigidity of the part is improved, and the longitudinal partition plate welded in the upright post can particularly inhibit torsional deformation of the upright post under the working condition. In particular, the support pipes are distributed in two rows and uniformly distributed on the corresponding positions of the guide rails on two sides along the vertical direction, so that the guide rails are supported, the bending resistance of the guide rails and the front wall is improved, the torsional rigidity of the upright is improved by the longitudinal partition plates distributed along the vertical direction of the upright, and the local deformation and the thin-wall vibration are reduced.
The thickness of the guide rail seat is not limited based on a casting process, the wall thickness of the guide rail seat can be increased to 50mm, and the local rigidity of the guide rail is enhanced by arranging the triangular reinforcing ribs on the inner sides of the two opposite guide rails, so that the torsion deformation is further resisted. This is because the triangular ribs transfer the local load of the outer wall of the support to the other wall panels, thereby increasing the load carrying capacity of the overall support.
By arranging the support tube in a cylindrical shape, the weld between the support tube and the front wall or the rear wall is an annular symmetrical weld without sharp corners of stress concentration. A circular section profile is used as the support tube, based on the same cross-sectional shape and the same size of area. Compared with the cross-section support tube with small outline dimension and wall thickness, the bending rigidity and torsional rigidity of the cross-section support tube with large outline dimension and thin wall are both obviously improved.
The vertical partition plates divide the upright post into a plurality of parts along the longitudinal direction, so that the connection between the partition plates is enhanced. Based on the welding structure, the reinforcing rib structure form is not limited, a triangular reinforcing structure can be cut at the 4 inner corners of the longitudinal partition plate, and the rectangular frame partition plate has the function of resisting torsional rigidity.
In general, the machining precision of parts can be directly influenced by overlarge deformation of the upright post, and under the condition of determining the appearance and materials, the change of the internal structural form of the upright post has obvious influence on improving the rigidity and reducing the deformation. The invention combines the control of welding manufacturability and welding deformation, fully considers the stress state and functional characteristics of each part of the lathe bed, improves the design of the cast-weld combined upright post structure mainly used for welding, avoids the influence of welding stress and deformation on the rigidity of the guide rail by the integral casting processing of the guide rail seat and the front wall, ensures the uniformity of the material and performance of the guide rail supporting part, and processes the structural material into a member body with a specific function by small splicing of the whole upright post through a welding seam. The light section bar used for the machine tool welding piece has high strength, light weight and high material utilization rate of more than 90 percent. The welding structure adopts various economic section structures to reasonably arrange the reinforcing ribs, so that the static rigidity of the structure is improved, the weight of the structure is reduced, and the natural frequency of the lathe bed is improved. The tube plate structure of the vertical processing machine tool based on the cast-weld composite technology fully plays respective advantages of castings and welding, realizes reasonable static and dynamic stiffness, vibration resistance and dimensional stability design, and achieves the purposes of improving structural performance, reducing structural weight and lowering product cost.
Drawings
In order to more clearly illustrate the technical solutions of the present invention, the following brief description will be given to the accompanying drawings, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and that other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1: the perspective view of a first angle of the vertical machine tool of the embodiment of the invention;
fig. 2: a second-angle perspective view of the vertical machine tool of the embodiment of the invention;
fig. 3: a perspective view of a first angle of a stand column in an embodiment of the invention;
fig. 4: a perspective view of a second angle of the upright post of the embodiment of the invention;
fig. 5: a third angle perspective view of the upright post of the embodiment of the invention;
fig. 6: a perspective view of a fourth angle of the upright post of the embodiment of the invention;
fig. 7: a top view schematic of the upright post of the embodiment of the invention;
fig. 8: the vertical column of the embodiment of the invention is a schematic perspective sectional view;
fig. 9: schematic illustration of a longitudinal baffle according to an embodiment of the present invention;
fig. 10: a side view of a support tube of an embodiment of the present invention;
fig. 11: the cross-section of the support tube according to the embodiment of the invention is schematically shown.
In order to further clarify the structure of the present invention and the connection between the components, the following reference numerals are given and are illustrated:
1-upright post, 2-lathe bed, 3-slide, 4-workbench, 5-power tool bit, 100-inner cavity, 101-front wall, 102-first side wall, 103-rear wall, 104-second side wall, 105-guide rail seat, 106-guide rail, 106 a-first guide rail, 106 b-second guide rail, 107-triangular reinforcing rib, 108-support tube, 108 a-support tube of first column, 108 b-support tube of second column, 109-longitudinal partition, 110-reinforcing structure, 111-side wall rib, 112-upper cover plate, 113-lower cover plate.
Detailed Description
In order to make the technical means of the present invention achieve the objects and effects easily understood, the following describes embodiments of the present invention in detail with reference to the specific drawings.
It is to be noted that all terms used for directional and positional indication in the present invention, such as: "upper", "lower", "left", "right", "front", "rear", "vertical", "horizontal", "inner", "outer", "top", "low", "lateral", "longitudinal", "center", etc. are merely used to explain the relative positional relationship, connection, etc. between the components in a particular state (as shown in the drawings), and are merely for convenience of description of the present invention, and do not require that the present invention must be constructed and operated in a particular orientation, and thus should not be construed as limiting the present invention. Furthermore, the description of "first," "second," etc. in this disclosure is for descriptive purposes only and is not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated.
In the description of the present invention, unless explicitly stated and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
In the description of the present specification, reference to the terms "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The machine tool upright post is subjected to the combined action of axial force, tangential force, moment and torque load in the column body transmitted by the guide rail. Among various deformations, torsional deformation is the most prominent, and has the greatest influence on the machining accuracy of the machine tool. When the hollow part is twisted, the wall is warped, and the cross section is distorted. Therefore, in order to solve the above problems, as shown in fig. 1-2, the embodiment of the invention provides a novel upright post of a vertical machine tool. The vertical machine tool comprises a stand column 1, a machine body 2, a sliding seat 3, a workbench 4 and a power tool bit 5. The upright 1 is vertically fixed at the rear end part of the lathe bed 2, and the power tool bit 5 is connected with the upright 1 and can move up and down along a guide rail 106 of the upright 1 in the Z direction. The lathe bed 2 is provided with a sliding seat 3, and the sliding seat 3 is provided with a workbench 4.
As shown in fig. 3 to 6, the upright 1 provided in the embodiment of the present invention includes a front wall 101, a first side wall 102, a rear wall 103, and a second side wall 104. The front wall 101, the first side wall 102, the rear wall 103, and the second side wall 104 collectively enclose an inner cavity 100 that is formed in a rectangular parallelepiped shape. For the thickness selection of the front wall 101, the first side wall 102, the rear wall 103 and the second side wall 104, those skilled in the art can make the large size of the upright 1, that is, the length, the width and the height, the same as those of the upright of the cast structure according to the use requirement of the machine tool, and design the wall thickness according to the uniform cross-section method and the bearing condition of each wall, the front wall 101 and the first side wall 102 and the second side wall 104 of the upright 1 are main load areas, the thickness of the front wall 101 and the first side wall 102 is larger, the rear wall 103 is a non-load area, and the thickness of the rear wall 103 is relatively smaller than that of the front wall 101 and the first side wall 102 and the second side wall 104.
In some implementations of the embodiment of the present invention, the upright 1 further includes an upper cover plate 112 and a lower cover plate 113, where the upper cover plate 112 and the lower cover plate 113 are respectively disposed at the top end and the bottom end of the upright.
In some implementations of the embodiment of the invention, the upright 1 further comprises a side wall rib 111, the side wall rib 111 being arranged between the lower cover plate 113 and the first side wall 102 and between the lower cover plate 113 and the second side wall 104. Preferably, the number of the side wall ribs 111 is plural, and the number of the side wall ribs 111 on both sides of the upright post is equal, and the positions of the side wall ribs 111 are mutually corresponding. According to the embodiment of the invention, the side wall rib plates 111 with the reinforcing effect are reasonably arranged, so that the static rigidity of the structure is improved, the weight of the structure is reduced, and the natural frequency of the lathe bed is improved.
The front wall 101 of the upright 1 provided by the embodiment of the invention is provided with a guide rail seat 105, and the outer surface of the guide rail seat 105 is provided with two parallel guide rails 106. The rigidity of the guide rail 106 is the core of the rigidity of the upright 1, and the cutting precision of the main shaft can be effectively ensured only by ensuring the rigidity of the guide rail 106. The dimensions of each side rail 106 are: 1460X 100X 170mm 3 The length is large, the structure is complex, machining is difficult, more materials need to be removed, and great waste is caused, so that the device is not suitable for machining production. The guide rail seat 105 is integrally cast with the front wall 101. The guide rail seat 105 and the two guide rails 106 of the upright post 1 of the machine tool are cast by integral cast steel, so that the local rigidity of the machine tool is improved, and the guide rail precision is ensured. Preferably, the guide rail seat 105 is made of cast steel, and the casting production is adopted to avoid the influence of welding stress and deformation on the rigidity of the guide rail, and ensure the uniformity of the material and performance of the guide rail seat 105. The other parts of the upright 1 are connected by welding, so that the upright 1 is guaranteed to have higher rigidity, and meanwhile, the influence of a welding process and a welding line on the guide rail 106 is avoided, so that the precision of the machine tool is guaranteed. The specific welding process is adopted to connect the wall of the guide rail seat 105 and the front wall 102 with great difficulty, and the connection thickness is close to 80mm, so that the complete penetration is difficult, the quality of the welding seam cannot be ensured, and the great deformation which is difficult to repair is caused by great heat input. Therefore, the invention integrally casts the guide rail seat and the front wall of the upright post, ensures the uniformity of the guide rail material, has no connecting surface and has higher rigidity of the guide rail part.
The upright post provided by the embodiment of the invention further comprises a triangular reinforcing rib 107, and the triangular reinforcing rib 107 is arranged between the guide rail seat 105 and the guide rail 106. Preferably, the triangular ribs 107 have dimensions of 80×100×45 °. Preferably, the number of the triangular reinforcing ribs 107 is plural, and the triangular reinforcing ribs 107 are disposed on opposite sides of two first guide rails 106a and second guide rails 106b that are parallel to each other. The number of triangular reinforcing ribs 107 connecting the first rail 106a and the rail housing 105 to each other is equal to the number of triangular reinforcing ribs 107 connecting the second rail 106b and the rail housing 105 to each other, and the two are in a one-to-one correspondence to each other in position. Since the thicknesses of the front wall 101 and the rail housing 105 and the number of the triangular ribs 107 manufactured by the casting process are not limited, in some implementations of the embodiment of the present invention, the wall thickness of the rail housing may be increased to 50mm.
In some implementations of the embodiment of the invention, as shown in fig. 7-8 and fig. 10-11, the upright 1 further comprises a support tube 108, one end of the support tube 108 is welded to the inner surface of the rail seat 105, and the other end is welded to the inner surface of the rear wall 103. The support tube 108 has a hollow structure, preferably cylindrical in shape. Preferably, the number of the support tubes 108 is plural, the support tubes 108 are divided into two parallel rows, the support tubes 108a in the first row are arranged along the extending direction of the first guide rail 106a, the support tubes 108b in the second row are arranged along the extending direction of the second guide rail 106b, and the number of the support tubes 108a in the first row and the number of the support tubes 108b in the second row are equal and the positions are corresponding to each other.
In some implementations of the present embodiment, the number of support tubes 108 is 6, including a first row of 3 support tubes 108a on the back side of the first rail 106a and a second row of 3 support tubes 108b on the back side of the second rail 106 b. The support tube 108 is a steel tube with phi 122 multiplied by 560mm and the wall thickness of 10 mm. The support pipe 108 can improve the bending strength of the upright column in the Z direction, support the guide rail, and improve the bending resistance of the guide rail 106 and the front wall 101. Specifically, the column 1 and the portion of the guide rail 106 thereof are similar to a cantilever structure, and the deformation increases from bottom to top. The supporting round tubes 108 are arranged to be uniformly distributed on the back sides of the guide rails 106 on two sides along the vertical direction, and the scheme can reduce the deformation of the guide rails 106 by at least 20% under the same condition, similar to the increase of the supporting points of the cantilever beams to support the guide rails 106, improve the bending resistance of the guide rails 106 and the front wall 102, and show by a plurality of comparison measurement results. Compared with other section steel pipes, the welding seam formed by the supporting pipe 108 is a symmetrical annular welding seam, so that the influence of the welding seam on a structural member can be reduced, and the stress and strain concentration caused by sharp points is avoided. A circular section profile is used as the support tube, based on the same cross-sectional shape and the same size of area. Compared with the cross-section support tube with small outline dimension and wall thickness, the bending rigidity and torsional rigidity of the cross-section support tube with large outline dimension and thin wall are both obviously improved. When the steel pipe is installed, the front wall 101 and the rear wall 103 of the upright 1 are perforated according to the outer diameter of the steel pipe, and then the steel pipe is inserted into the hole in an interference fit manner for welding.
In some implementations of the embodiments of the present invention, as shown in fig. 7-9, the pillar 1 further includes a longitudinal partition 109 disposed in the inner cavity 100 of the pillar, and the outer periphery of the longitudinal partition 109 is welded to the front wall 101, the first side wall 102, the rear wall 103, and the second side wall 104, respectively. Preferably, the longitudinal partition 109 has a rectangular frame structure, and a triangular reinforcing structure 110 is disposed between two adjacent sides of the longitudinal partition 109 that are perpendicular to each other. Preferably, the number of the longitudinal partition plates 109 is plural, and the longitudinal partition plates 109 and the support pipes 108 are disposed in the inner chamber 100 at intervals.
In some implementations of the present embodiment, the number of longitudinal spacers 109 is 4, and the thickness of the longitudinal spacers 109 is 20mm. The 4 longitudinal spacers 109 divide the column 1 into 5 parts in the Z-direction, enhancing the connection between the longitudinal spacers 109. The reinforcing rib structure form of the longitudinal partition 109 is not limited based on the welding structure, and a triangle with an included angle of 45 degrees and a length of 135mm is cut at four inner corners of the longitudinal partition 109 of the rectangular frame structure as the reinforcing structure 110, so that the effect of the annular rib plate on torsional rigidity is increased.
The embodiment of the invention also provides a manufacturing method of the upright post of the vertical numerical control machine tool, which comprises the following steps:
s1, welding a support tube 108 into a reserved hole on the inner surface of a guide rail seat 105 integrally cast and formed with a front wall 101, wherein the support tube 108 is vertical to the guide rail seat 105;
s2, welding a first side wall 102 and a second side wall 104 to two ends of the front wall 101, wherein the first side wall 102 and the second side wall 104 are parallel to each other and respectively vertical to the front wall 101;
s3, connecting the longitudinal partition plates 109 with the front wall 101, the first side wall 102 and the second side wall 104 respectively through welding, wherein when the number of the longitudinal partition plates 109 exceeds one, the longitudinal partition plates 109 are welded sequentially from the middle part of the front wall 101 to the upper and lower ends of the front wall 101 respectively;
s4, welding the rear wall 103 with the support tube 108, the longitudinal partition 109, the first side wall 102 and the second side wall 104, wherein a preformed hole for welding the support tube 108 is formed in the rear wall 103.
S5, respectively welding an upper cover plate 112 and a lower cover plate 113 at the upper end and the lower end of the upright post;
s6, the side wall rib 111 is welded between the first side wall 102 and the lower cover plate 113, and/or welded between the second side wall 104 and the lower cover plate 113.
The upright post provided by the embodiment of the invention adopts a welding-based and cast-weld combined mode, fully combines the advantages of the two processes, utilizes the reinforcing structure of tube plate combination, meets the industry requirements on rigidity and precision, and has reasonable cost and flexible and efficient production and manufacturing process.
It should be apparent that the above-described embodiments are only some, but not all, embodiments of the present invention. Based on the embodiments of the present invention, various changes, modifications, substitutions and improvements can be made by those skilled in the art without making any inventive effort, and are intended to be included in the scope of the present invention.
Claims (6)
1. Upright of a vertical machine tool, said upright being jointly surrounded by a front wall (101), a first side wall (102), a rear wall (103) and a second side wall (104), characterized in that: a guide rail seat (105) is arranged on the front wall (101), two guide rails (106) which are parallel to each other are arranged on the outer surface of the guide rail seat (105), the guide rail seat (105) and the front wall (101) are integrally cast and molded,
the device further comprises a support tube (108), one end of the support tube (108) is welded with the inner surface of the guide rail seat (105), and the other end of the support tube is welded with the inner surface of the rear wall (103);
the support pipes (108) are divided into two parallel rows, the support pipes (108 a) in the first row are arranged along the extending direction of the first guide rail (106 a), the support pipes (108 b) in the second row are arranged along the extending direction of the second guide rail (106 b), the number of the support pipes (108 a) in the first row is equal to that of the support pipes (108 b) in the second row, and the positions of the support pipes are mutually corresponding; the supporting tube (108) can improve the bending strength of the upright column in the Z direction and simultaneously support the guide rail;
the vertical partition plate (109) is arranged in the inner cavity (100) of the upright post; the outer periphery of the longitudinal partition plate (109) is respectively welded with the front wall (101), the first side wall (102), the rear wall (103) and the second side wall (104);
the manufacturing method of the upright post comprises the following steps:
s1, welding a support tube (108) into a reserved hole on the inner surface of a guide rail seat (105) which is integrally cast and formed with a front wall (101), wherein the support tube (108) is vertical to the guide rail seat (105);
s2, welding a first side wall (102) and a second side wall (104) to two ends of the front wall (101), wherein the first side wall (102) and the second side wall (104) are parallel to each other and respectively vertical to the front wall (101);
s3, connecting the longitudinal partition plates (109) with the front wall (101), the first side wall (102) and the second side wall (104) respectively through welding, wherein when the number of the longitudinal partition plates (109) exceeds one, the welding sequence of the longitudinal partition plates (109) is that the longitudinal partition plates (109) are welded sequentially towards the upper end and the lower end of the front wall (101) by taking the middle part of the front wall (101) as a starting point;
s4, welding the rear wall (103) with the support tube (108), the longitudinal partition (109), the first side wall (102) and the second side wall (104).
2. The column of vertical machine tools according to claim 1, characterized in that: still include triangle strengthening rib (107), triangle strengthening rib (107) set up in between guide rail seat (105) and guide rail (106).
3. The column of vertical machine tools according to claim 1, characterized in that: the novel vertical column structure comprises an upright column, and is characterized by further comprising an upper cover plate (112), a lower cover plate (113) and side wall rib plates (111), wherein the upper cover plate (112) and the lower cover plate (113) are respectively arranged at the top end and the bottom end of the upright column, and the side wall rib plates (111) are arranged between the lower cover plate (113) and the first side wall (102) and between the lower cover plate (113) and the second side wall (104).
4. The column of vertical machine tools according to claim 1, characterized in that: the support tube (108) has a hollow structure and is cylindrical in shape.
5. The column of vertical machine tools according to claim 1, characterized in that: the longitudinal partition plate (109) is of a rectangular frame structure, and triangular reinforcing structures (110) are arranged between two adjacent sides of the longitudinal partition plate (109) which are perpendicular to each other.
6. The column of vertical machine tools according to claim 1, characterized in that: the method also comprises the following steps:
s5, respectively welding an upper cover plate (112) and a lower cover plate (113) at the upper end and the lower end of the upright post;
s6, a side wall rib (111) is welded between the first side wall (102) and the lower cover plate (113) and/or between the second side wall (104) and the lower cover plate (113).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811000251.4A CN109014973B (en) | 2018-08-30 | 2018-08-30 | Upright post of vertical numerical control machine tool and manufacturing method thereof |
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| CN201811000251.4A CN109014973B (en) | 2018-08-30 | 2018-08-30 | Upright post of vertical numerical control machine tool and manufacturing method thereof |
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| CN109014973B true CN109014973B (en) | 2024-01-09 |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1402991A2 (en) * | 2002-09-26 | 2004-03-31 | Hans Kurt Kessler | Machine tool with a column sliding on two guides with a total of three guiding blocks |
| CN201231409Y (en) * | 2008-04-08 | 2009-05-06 | 深圳市康铖机械设备有限公司 | Vertical processing center |
| CN102189411A (en) * | 2011-03-25 | 2011-09-21 | 无锡华联精工机械有限公司 | Welding rack structure of numerically controlled drilling and milling machine |
| CN103128559A (en) * | 2013-03-28 | 2013-06-05 | 无锡华联精工机械有限公司 | Stand column structure used in large-scale end surface milling |
| CN205309783U (en) * | 2015-11-02 | 2016-06-15 | 深圳市创世纪机械有限公司 | Numerical control machine column |
| CN206169652U (en) * | 2016-09-26 | 2017-05-17 | 苏州德扬数控机械有限公司 | Machine column of digit control machine tool |
| CN206898788U (en) * | 2017-06-19 | 2018-01-19 | 东莞市展硕精密机械有限公司 | A kind of vertical machining center type column |
| CN209094964U (en) * | 2018-08-30 | 2019-07-12 | 机械科学研究总院集团有限公司 | A kind of column of vertical type numerically controlled machine |
-
2018
- 2018-08-30 CN CN201811000251.4A patent/CN109014973B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1402991A2 (en) * | 2002-09-26 | 2004-03-31 | Hans Kurt Kessler | Machine tool with a column sliding on two guides with a total of three guiding blocks |
| CN201231409Y (en) * | 2008-04-08 | 2009-05-06 | 深圳市康铖机械设备有限公司 | Vertical processing center |
| CN102189411A (en) * | 2011-03-25 | 2011-09-21 | 无锡华联精工机械有限公司 | Welding rack structure of numerically controlled drilling and milling machine |
| CN103128559A (en) * | 2013-03-28 | 2013-06-05 | 无锡华联精工机械有限公司 | Stand column structure used in large-scale end surface milling |
| CN205309783U (en) * | 2015-11-02 | 2016-06-15 | 深圳市创世纪机械有限公司 | Numerical control machine column |
| CN206169652U (en) * | 2016-09-26 | 2017-05-17 | 苏州德扬数控机械有限公司 | Machine column of digit control machine tool |
| CN206898788U (en) * | 2017-06-19 | 2018-01-19 | 东莞市展硕精密机械有限公司 | A kind of vertical machining center type column |
| CN209094964U (en) * | 2018-08-30 | 2019-07-12 | 机械科学研究总院集团有限公司 | A kind of column of vertical type numerically controlled machine |
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