CN112872848B - Integral spinning type hemispherical shell machining off-line clamping device and production line - Google Patents
Integral spinning type hemispherical shell machining off-line clamping device and production line Download PDFInfo
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- CN112872848B CN112872848B CN202011316310.6A CN202011316310A CN112872848B CN 112872848 B CN112872848 B CN 112872848B CN 202011316310 A CN202011316310 A CN 202011316310A CN 112872848 B CN112872848 B CN 112872848B
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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
- B23Q3/00—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
- B23Q3/02—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine for mounting on a work-table, tool-slide, or analogous part
- B23Q3/06—Work-clamping means
- B23Q3/066—Bench vices
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P23/00—Machines or arrangements of machines for performing specified combinations of different metal-working operations not covered by a single other subclass
- B23P23/06—Metal-working plant comprising a number of associated machines or apparatus
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Abstract
The invention provides an integral spinning type hemispherical shell machining off-line clamping device which comprises a transition mounting plate, a radial adjusting mechanism, a vice clamping and correcting mechanism, a transition mounting plate upright post, leveling upright posts, a center upright post and a mounting platform. The invention also provides a production line comprising the off-line clamping device. The clamping device and the production line provided by the invention can realize parallel assembly line type operation of product off-line clamping and on-line processing, improve the product processing efficiency by more than 30% compared with the mode of on-line clamping, adjusting, centering and then machining, and greatly improve the batch production capacity of the integrally spun hemispherical shell product.
Description
Technical Field
The invention belongs to the field of precise and batch machining, and particularly relates to an integral spinning type hemispherical shell machining and offline clamping device and a production line.
Background
The current integral spinning forming type hemispherical shell end socket is increasingly widely applied in the fields of pressure vessels, aerospace and the like, and has obvious advantages. Particularly in the field of aerospace, the medium-large diameter hemispherical shell end socket usually adopts a manufacturing mode of part split forming and integral tailor welding, and has a series of problems of more welding seams, more intermediate processing procedures, long flow, low integral manufacturing efficiency, lack of interchangeability and the like. The medium-large diameter hemispheroid shell end socket adopts an improved integral manufacturing process scheme of integral spinning forming and then machining, so that the manufacturing period and the manufacturing cost can be obviously reduced, and the interchangeability and the batch production capacity of products are improved.
A semi-spherical shell end socket blank of a certain type is obtained in the early stage, and machining allowance is reserved inside and outside the blank relative to a theoretical graph, which is shown in the attached drawing 1. In order to meet the requirements of final wall thickness and related dimensions specified by design, the semi-spherical shell-like end socket is spun and formed, and then the blank allowance is removed after the inner and outer molded surfaces are machined, so as to obtain a final finished product, wherein the machining process is shown in the attached figure 2. However, because the end socket of the quasi-hemispherical shell is a large thin-wall shell part, the idle waiting time of a vertical lathe is too long in the turning process, so that the product clamping and coaxial adjustment work in the integral turning process of the inner profile occupies 60% of the period of the whole process, the processing efficiency of the product is reduced, and the batch production capacity of the integral spinning quasi-hemispherical shell product is difficult to improve.
Disclosure of Invention
In order to solve at least one of the technical problems, the invention adopts the technical scheme that an off-line clamping device and a production line are provided for the integral spinning type hemispherical shell machine, so that the parallel production line type operation of off-line clamping and on-line processing of a product is realized, the processing efficiency is improved, and the batch production capacity of the integral spinning type hemispherical shell product is improved.
In order to at least achieve one of the above purposes, the invention adopts the technical scheme that:
the invention provides an integral spinning type hemispherical shell machining off-line clamping device, which comprises: transition mounting panel, radial guiding mechanism, vice press from both sides tight school shape mechanism, transition mounting panel stand, leveling stand, center post and mounting platform, the transition mounting panel is in through transition mounting panel column mouting on the mounting platform, it is a plurality of the leveling stand is followed mounting platform's circumference equipartition, center column mouting is in the central point of mounting platform circumference puts, radial guiding mechanism with vice press from both sides tight school shape mechanism and installs on the transition mounting panel.
Furthermore, a positioning pin hole is formed in the transition mounting plate, a positioning pin shaft is mounted at the top end of the transition mounting plate column, the positioning pin shaft and the positioning pin hole are matched for positioning, and a positioning datum of the mounting platform is connected to the transition mounting plate through the transition mounting plate column and the positioning pin shaft in a rotating mode.
Furthermore, the diameter of the reference circle of the positioning pin hole of the transition mounting plate is phi 3m grade.
Further, the positioning pin shaft is a conical head pin.
Furthermore, a central positioning ring is arranged on the central upright post, and the central positioning ring is used for positioning through the shaft hole to enable the hemispherical shell and the mounting platform to be initially positioned in the center.
Furthermore, a leveling screw is arranged on the leveling upright column and used for initially adjusting the large end face of the quasi-hemispherical shell to be parallel to the mounting platform.
Furthermore, the radial adjusting mechanism comprises a fine adjusting screw and a pressing block, the pressing block is installed at the end of the fine adjusting screw, and the pressing block can abut against the side portion of the semi-spherical shell and is used for fixedly connecting the transition mounting plate with the semi-spherical shell.
Furthermore, the vice clamping and shape correcting mechanism comprises a left clamping plate and a right clamping plate, a left adjusting screw and a right adjusting screw are respectively installed on the left clamping plate and the right clamping plate, and sawtooth structures are arranged on the left clamping plate and the right clamping plate and are used for clamping the hemispheroid-shaped shell.
Furthermore, a tightening bolt is further arranged on the transition mounting plate and used for tightly connecting the hemispherical shell and the transition mounting plate.
The invention also provides a production line which comprises an offline module and an online module, wherein the offline module comprises the machining offline clamping device, and the online module comprises another transition mounting plate.
The integral spinning type hemispherical shell machine provided by the invention is provided with the off-line clamping device, and the transition mounting plate is used in the off-line clamping device, so that the hemispherical shell product can be quickly adjusted, centered, positioned and clamped; the online and offline modules on the production line realize the working mode of offline quick installation, can realize parallel assembly line type operation of offline clamping and online processing of products, improves the processing efficiency of the products by more than 30 percent compared with the mode of online clamping, adjustment, centering and machining, and greatly improves the batch production capacity of the integral spinning type hemispherical shell products.
In a word, the invention provides the integral spinning type hemispherical shell machine and the off-line clamping device and the production line which have the advantages of simple structure, high positioning accuracy, high clamping and machining efficiency, and have wide application prospect.
Drawings
FIG. 1 is a drawing and a partial enlarged view of a head blank of a semi-spherical shell of a certain type;
FIG. 2 is a general processing flow chart of the sealing head of the quasi-hemispherical shell;
FIG. 3 is a schematic structural view of the offline clamping device according to the present invention;
FIG. 4 is a schematic top view of the offline clamping apparatus according to the present invention;
FIG. 5 is a schematic structural view of a radial adjustment mechanism and a positioning pin of the present invention;
FIG. 6 is a schematic view of a vise sizing mechanism of the present invention;
FIG. 7 is a schematic view of the inverted transition mounting plate of the present invention;
FIG. 8 is a schematic view of the transition mounting plate and inner profile turning apparatus of the present invention in combination;
the device comprises a transition mounting plate 1, a radial adjusting mechanism 2, a vice clamping and correcting mechanism 3, a transition mounting plate column 4, a leveling column 5, a center column 6, a mounting platform 7, a positioning pin hole 1-1, a fine adjustment screw rod 2-1, a pressing block 2-2, a left clamping plate 3-1, a right clamping plate 3-2, a positioning pin shaft 4-1, a leveling screw rod 5-1 and a center positioning ring 6-1.
Detailed Description
In order to make the technical solutions of the present invention better understood, the present invention is further described in detail with reference to the following specific embodiments. It should be noted that the following described embodiments are exemplary only and are not to be construed as limiting the invention. The examples, where specific techniques or conditions are not indicated, are to be construed according to the techniques or conditions described in the literature in the art or according to the product specifications.
In the description of the present invention, it is to be understood that the terms "first", "second" and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implying any 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; the connection can be mechanical connection or electrical connection; they may be directly connected or indirectly connected through intervening media, or may be connected through the use of two elements or the interaction of two elements. The specific meanings of the above terms in the present invention can be understood according to specific situations by those of ordinary skill in the art.
The integral spinning hemispherical shell machine, the off-line clamping device and the production line provided by the invention are explained in detail through specific embodiments as follows:
as shown in fig. 3-8, the invention provides an off-line clamping device for an integral spinning type hemispherical shell machine, which comprises a transition mounting plate 1, a radial adjusting mechanism 2, a vice clamping and shape correcting mechanism 3, a transition mounting plate upright post 4, a leveling upright post 5, a center upright post 6 and a mounting platform 7, wherein the transition mounting plate 1 is mounted on the mounting platform 7 through the transition mounting plate upright post 4, the radial adjusting mechanism 5 is mounted on the transition mounting plate 1, a plurality of leveling upright posts 5 are uniformly distributed along the circumference of the mounting platform 7, the center upright post 6 is mounted at the center of the circumference of the mounting platform 7, and the bottom of the vice clamping and shape correcting mechanism 3 is mounted on the transition mounting plate 1.
According to the installation platform 7, the installation platform 7 is used as a basic platform and a positioning reference of an offline clamping device, four transition installation plate stand columns 4 are arranged on the installation platform 7, positioning pin shafts 4-1 are installed at the top ends of the transition installation plate stand columns 4, and the positioning reference of the installation platform 7 is connected to the transition installation plate 1 through the transition installation plate stand columns 4 and the positioning pin shafts 4-1 in a switching mode.
According to the invention, the transition mounting plate 1 is provided with the positioning pin hole 1-1, the positioning pin hole 1-1 is matched with the positioning pin shaft 4-1 for positioning, the diameter of the reference circle of the positioning pin hole 1-1 is phi 3m, the transition mounting plate 1 is large in structure, high in precision requirement and relatively difficult in coordination and centering, and the positioning pin shaft 4-1 is matched with the positioning pin hole 1-1 by adopting a 30-degree conical head pin to realize coordination and positioning.
According to the invention, the central upright post 6 is provided with a central positioning ring 6-1, and the central positioning ring 6-1 is positioned through the shaft hole to initially center the hemispherical shell and the mounting platform 7; four leveling upright columns 5 are arranged along the circumference, and leveling screws 5-1 are arranged at the upper ends of the leveling upright columns 5.
The radial adjusting mechanism 2 comprises a fine adjusting screw rod 2-1 and a pressing block 2-2, wherein the pressing block 2-1 is installed at the end part of the fine adjusting screw rod 2-1, the pressing block 2-2 is abutted against the side part of the semi-spherical shell-like body, the pressing block 2-2 is slightly moved by adjusting the fine adjusting screw rod 2-1 so as to adjust the semi-spherical shell blank product with the initial central positioning, the semi-spherical shell blank product is centrally positioned with the mounting platform 7 and the transition mounting plate 1, and the coaxiality meets the requirement of phi 0.5 mm.
The vice clamping and shape correcting mechanism 3 comprises a left clamping plate 3-1 and a right clamping plate 3-2, wherein a left adjusting screw and a right adjusting screw are respectively arranged on the left clamping plate 3-1 and the right clamping plate 3-2, and sawtooth structures are respectively arranged on the left clamping plate 3-1 and the right clamping plate 3-2 and are used for clamping the hemispherical shell.
The transition mounting plate 1 is provided with a tightening bolt for fastening and connecting the transition mounting plate with an on-line machining device. (note: the tightening bolt on the transition mounting plate is used for connecting with the lathe machining tool of the inner molded surface of the machining device machined on the subsequent product line, and the semi-spherical shell and the transition mounting plate are fixed by means of a radial adjusting mechanism and a vice clamping and shape correcting mechanism).
The invention also provides a production line, which comprises an offline module and an online module, wherein the offline module comprises the machining offline clamping device, the online module comprises another transition mounting plate and a turning tool base platform, and the position degrees of positioning pin holes on the two transition mounting plates are coordinated with the positions of the mounting platform in the offline module and the positioning pin shaft on the turning tool base platform, so that the online and offline transportation mounting and positioning references are unchanged, and the coaxiality is ensured.
The invention provides an integral spinning type hemispherical shell machine and an off-line clamping device and a working principle of a production line, which specifically comprise the following steps:
firstly, a semi-spherical shell blank is placed on a transitional mounting plate of a machining off-line clamping device, and the blank and a mounting platform are initially positioned and ensured through the positioning of a central positioning ring on a central upright post and a shaft hole formed by machining the blank; adjusting a radial adjusting mechanism, enabling the blank piece and the transition mounting plate to be concentric, and clamping the blank piece by using a vice clamping and shape correcting mechanism to keep the central positioning position of the blank piece and the transition mounting plate fixed; fastening bolts of the transition mounting plate to realize the fastening connection of the transition mounting plate and the blank; and finishing offline clamping work of the blank piece.
Then, the transition mounting plate and the blank are turned for 180 degrees integrally through the turning lifting appliance, the transition mounting plate can be coordinated and centered with four positioning pin shafts on the inner profile turning tooling base after being turned for 180 degrees, the perpendicularity and the position degree of the positioning pin holes in the transition mounting plate and the end face are required to be high, and the accurate transmission of the on-line and off-line coaxiality of the transition mounting plate before and after turning is ensured.
And (3) enabling the blank to enter the on-line processing process of the inner molded surface turning device, enabling a product completion state diagram to be shown in fig. 8, loosening the tightening bolt of the transition mounting plate after the product is qualified after the product is processed on the on-line detection, and integrally hoisting the transition mounting plate and the product to be off-line.
And when the blank is processed on line, another transition mounting plate is mounted on the mounting platform in the offline module, the blank to be processed is placed on the transition mounting plate, the processes are repeated, and after the previous product is processed, the blank is turned and hoisted for online processing, so that parallel assembly line type operation of offline product clamping and online product processing is realized.
Compared with the prior art, the integral spinning type hemispherical shell machine and the off-line clamping device and the production line provided by the invention have the beneficial effects that:
(1) The positioning hole bushings and the positioning pin shafts which are coordinately configured in positioning mode are adopted to realize that the positioning reference of the transition mounting plate is consistent with the positioning reference of the offline mounting platform and the online turning tool base platform, so that the online offline transferring mounting positioning reference is guaranteed to be unchanged, and the coaxiality of the product turning process and the equipment turntable is guaranteed.
(2) The transition mounting panel drives the product and can coordinate the centering with four locating pin axles on the frock base after realizing 180 upsets, and the pinhole coordination location requirement on mounting platform, transition mounting panel, the car processing frock installation face is higher, can guarantee to insert the location smoothly after the hoist and mount, guarantees that the transition mounting panel overturns the accurate transmission of on-line off-line axiality around the front and back line.
(3) The off-line center of the product is positioned and clamped by using a non-standard vice clamping and correcting mechanism and a radial adjusting mechanism, the product is turned over, and the transfer process is stable and reliable;
(4) The transition mounting plate adopting the device is used for clamping products off line, adjusting and centering, and quickly mounting the products on line, so that parallel assembly line type operation of product off-line clamping and on-line processing is realized, the device is suitable for product serialization, and batch assembly line production is achieved.
The integral spinning type hemispherical shell machine provided by the invention is provided with the off-line clamping device, and the transition mounting plate is used in the off-line clamping device, so that the hemispherical shell product can be quickly adjusted, centered and positioned for clamping; the online and offline modules on the production line realize the working mode of offline quick installation, can realize parallel assembly line type operation of offline clamping and online processing of products, improves the processing efficiency of the products by more than 30 percent compared with the mode of online clamping, adjustment, centering and machining, and greatly improves the batch production capacity of the integral spinning type hemispherical shell products.
In a word, the invention provides the integral spinning type hemispherical shell machining off-line clamping device and the production line which have the advantages of simple structure, high positioning accuracy, high clamping and machining efficiency, and wide application prospect.
In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
In the description of the specification, reference to the description of "one embodiment," "some embodiments," "an example," "a specific example," or "some examples" or the like 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, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Moreover, various embodiments or examples and features of various embodiments or examples described in this specification can be combined and combined by one skilled in the art without being mutually inconsistent.
Claims (10)
1. The integral spinning hemispherical shell machining off-line clamping device is characterized in that the transition mounting plate is mounted on the mounting platform through the transition mounting plate stand column, a plurality of leveling stand columns are uniformly distributed along the circumference of the mounting platform, the center stand column is mounted at the center of the circumference of the mounting platform, and the radial adjusting mechanism and the vice clamping and correcting mechanism are both mounted on the transition mounting plate; placing a semi-spherical shell blank on the transitional mounting plate, and ensuring the initial center positioning of the blank and the mounting platform through the center positioning ring on the center upright post and the shaft hole formed by machining the blank; adjusting a radial adjusting mechanism, concentrically clamping the blank piece and the transition mounting plate, and keeping the central positioning position of the blank piece and the transition mounting plate fixed; the transition mounting plate is fixedly connected with the blank piece; 180-degree turnover of the transition mounting plate and the whole blank piece is realized through the turnover lifting appliance, the transition mounting plate realizes coordination centering after 180-degree turnover, and accurate transmission of on-line and off-line coaxiality of the transition mounting plate before and after turnover is guaranteed.
2. The integrated spinning semi-spherical shell machining off-line clamping device according to claim 1, wherein a positioning pin hole is formed in the transition mounting plate, a positioning pin shaft is mounted at the top end of the transition mounting plate stand column and is matched with the positioning pin hole for positioning, and the mounting platform is connected to the transition mounting plate through the transition mounting plate stand column and the positioning pin shaft in a rotating mode.
3. The integrated spinning semi-spherical shell machining off-line clamping device according to claim 2, wherein the reference circle of the positioning pin hole of the transition mounting plate has a diameter of phi 3 m.
4. The integrated spinning semi-spherical shell machining off-line clamping device according to claim 3, wherein the positioning pin shaft is a conical head pin.
5. The integrated spinning hemispherical shell machining off-line clamping device as claimed in claim 4, wherein a central positioning ring is arranged on the central upright post, and the central positioning ring enables the hemispherical shell and the mounting platform to be initially positioned in a center through shaft hole positioning.
6. The integrated spinning hemispherical shell machining off-line clamping device as claimed in claim 5, wherein the leveling upright post is provided with a leveling screw.
7. The integrated spinning hemispherical shell machining off-line clamping device as claimed in claim 6, wherein the radial adjusting mechanism comprises a fine adjustment screw and a pressing block, the pressing block is mounted at the end of the fine adjustment screw, and the pressing block can be abutted against the side of the hemispherical shell and is used for fastening the transition mounting plate and the hemispherical shell.
8. The integrated spinning hemisphere-like housing machine offline clamping device according to claim 7, wherein the vice clamping and shape correcting mechanism comprises a left clamping plate and a right clamping plate, a left adjusting screw and a right adjusting screw are respectively installed on the left clamping plate and the right clamping plate, and sawtooth structures are arranged on the left clamping plate and the right clamping plate and used for clamping the hemisphere-like housing.
9. The integrated spinning hemispherical shell machining off-line clamping device as claimed in claim 8, wherein the transition mounting plate is further provided with a tightening bolt for fastening and connecting the hemispherical shell and the transition mounting plate.
10. A production line comprising an offline module and an online module, wherein the offline module comprises the integral spinning hemispherical shell machine and the offline clamping device as claimed in any one of claims 1 to 9, and the online module comprises another transition mounting plate.
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| CN202011316310.6A CN112872848B (en) | 2020-11-19 | 2020-11-19 | Integral spinning type hemispherical shell machining off-line clamping device and production line |
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| CN202011316310.6A CN112872848B (en) | 2020-11-19 | 2020-11-19 | Integral spinning type hemispherical shell machining off-line clamping device and production line |
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| CN114102159A (en) * | 2021-11-29 | 2022-03-01 | 天津航天长征火箭制造有限公司 | Milling and welding integrated device and welding method for spherical crown bottom melon petal and closed-loop flange |
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| KR20050003316A (en) * | 2003-06-27 | 2005-01-10 | 신천기계공업주식회사 | Machining jig and machining method thereof for machining a large diesel engine four-end cover in a small boring to make a large workpiece by a small device |
| CN2917923Y (en) * | 2006-06-30 | 2007-07-04 | 河南科隆石化装备有限公司 | Cramping apparatus for processing dome head welding groove |
| CN205950331U (en) * | 2016-08-24 | 2017-02-15 | 中国航天科技集团公司长征机械厂 | Whole milling anchor clamps of fixing a position of large -scale thin wall section of thick bamboo section part |
| CN106808246B (en) * | 2017-03-01 | 2017-10-27 | 南京航空航天大学 | Thin-wall annular part processing method and its automatic auxiliary support apparatus |
| CN207548228U (en) * | 2017-11-30 | 2018-06-29 | 天津市景泰科技发展有限公司 | Multipurpose electronic cabinet tooling |
| CN209256380U (en) * | 2018-12-14 | 2019-08-16 | 西安优耐特容器制造有限公司 | A kind of boring clamping tooling of thin-wall titanium alloy end socket |
| CN209919368U (en) * | 2019-04-22 | 2020-01-10 | 无锡西塘核设备有限公司 | Head processing frock |
| CN111097924B (en) * | 2019-12-09 | 2021-06-11 | 首都航天机械有限公司 | Processing method of end socket for pressure container |
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