CN111230426B - Production and processing method and processing tool for bent grading ring - Google Patents

Production and processing method and processing tool for bent grading ring Download PDF

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Publication number
CN111230426B
CN111230426B CN202010193916.9A CN202010193916A CN111230426B CN 111230426 B CN111230426 B CN 111230426B CN 202010193916 A CN202010193916 A CN 202010193916A CN 111230426 B CN111230426 B CN 111230426B
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Prior art keywords
middle section
section body
jack
plate
bent
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CN111230426A (en
Inventor
张静华
鞠永祝
于世振
王银春
徐刚
吕刚
杨星梅
刘媛
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Jiangsu Shuanghui Power Development Co Ltd
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Jiangsu Shuanghui Power Development Co Ltd
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23PMETAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
    • B23P15/00Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21DWORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D11/00Bending not restricted to forms of material mentioned in only one of groups B21D5/00, B21D7/00, B21D9/00; Bending not provided for in groups B21D5/00 - B21D9/00; Twisting
    • B21D11/22Auxiliary equipment, e.g. positioning devices
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K37/00Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
    • B23K37/04Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work
    • B23K37/0426Fixtures for other work
    • B23K37/0435Clamps
    • B23K37/0443Jigs
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23QDETAILS, 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
    • B23Q3/00Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
    • B23Q3/02Devices 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
    • B23Q3/06Work-clamping means
    • B23Q3/08Work-clamping means other than mechanically-actuated
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01BCABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B17/00Insulators or insulating bodies characterised by their form
    • H01B17/42Means for obtaining improved distribution of voltage; Protection against arc discharges
    • H01B17/48Means for obtaining improved distribution of voltage; Protection against arc discharges over chains or other serially-arranged insulators

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Power Engineering (AREA)
  • Bending Of Plates, Rods, And Pipes (AREA)

Abstract

The invention discloses a production and processing method of a bent equalizing ring and a processing tool thereof, belongs to the technical field of electric power fitting production and manufacturing, and solves the problem that the traditional equalizing ring processing method is not suitable for the bent equalizing ring. The invention mainly adopts a method of sectional bending and vertex positioning. The method has the advantages of ingenious and novel conception, simple and ingenious structural design of the processing tool, high efficiency and high quality completion of production with the lowest cost, the fewest production processes and the simplest operation steps, and creates considerable economic value for enterprises.

Description

Production and processing method and processing tool for bent grading ring
Technical Field
The invention belongs to the technical field of electric power fitting production, manufacturing and processing, and particularly relates to a method and a tool for producing and processing a bent equalizing ring, which have the advantages of low production cost, simplified production process, simple operation steps, capability of one-step forming, high demolding speed, high production efficiency, high accuracy and high quality of processed products.
Background
The grading ring improves the annular hardware fittings of insulator chain voltage distribution. The grading ring has the function of preventing side lightning stroke, is suitable for alternating voltage, can uniformly distribute high voltage around an object, and ensures that no potential difference exists among all annular parts, thereby achieving the effect of grading. The grading ring generally comprises a closed-loop ring body and a mounting support, the traditional closed-loop ring body is generally a closed-loop ring body on a plane, the closed-loop ring body is formed by bending a round pipe on a bending machine according to design requirements, and two joints of the round pipe are welded after bending and forming.
When an enterprise receives a batch of grading ring orders, the product structure is shown in the attached figures 1-4 of the specification, and the grading ring comprises a ring body bottom periphery and a mounting bracket fixed on the ring body bottom periphery, wherein the ring body bottom periphery is not in a conventional design and is in a symmetrical bending type when viewed from a main view direction; that is to say, the closed ring body itself is the ring body of bending, and whole ring body is also the type of bending, and different radian of bending, different directions of bending bring great degree of difficulty for production. If the traditional processing method of integral bending and forming is used for processing, the processing difficulty of the product is high, so that the production speed is very low, the labor intensity of workers is high, and the rejection rate of the product is high. How to complete the production of the product with minimum production cost, minimum production procedures and simplest operation steps, which is a problem that needs to be solved by enterprise technicians at present.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provides a method and a tool for producing and processing a bent equalizing ring, which have the advantages of low production cost, simplified production process, simple operation steps, capability of one-step forming, high demoulding speed, high production efficiency, high precision and high quality of processed products.
The invention is realized by the following technical scheme:
the utility model provides a crooked type equalizer ring production processing method, crooked type equalizer ring encloses and fixes the installing support that encloses at the bottom of the ring body, its characterized in that: the bending type grading ring is processed by adopting a method of sectional type bending matched vertex positioning, and specifically comprises the following operation steps,
a. processing the bottom wall in sections; the bottom of the ring body is seen to be formed by combining three sections, wherein the three sections are respectively an arc-shaped middle section body and end section bodies symmetrically distributed at two ends of the middle section body, and the end section bodies and the middle section body are in a tangent relation; firstly, respectively processing a middle section body and two end section bodies; wherein, the middle section body comprises two identical arc pipes which are bent for standby; the end section bodies are U-shaped, and the two end section bodies are bent for standby;
b. pre-positioning the end segment body and the middle segment body by using the vertex; the middle section body and the two end section bodies are respectively provided with a unique central vertex, the middle section body is horizontally placed on a processing tool, the end section bodies are hung on the processing tool, and the vertices are utilized to realize the rapid pre-positioning of each part;
c. fixing the mounting bracket; a bracket positioning plate is arranged on the machining tool, and the mounting bracket is fixed on the bracket positioning plate;
d. fixing the middle section body; a jack is arranged between the support positioning plate and the middle section body, one end of the jack is abutted against the support positioning plate, and the other end of the jack is abutted against the middle section body;
e. fixing the end segment; fixing the end section body on a processing tool;
f. welding; welding the joint between the middle section body and the end section body and the joint between the mounting bracket and the middle section body;
g. repair welding after demolding; and f, unloading the product in the step f from the processing tool, performing repair welding on the seam which is not welded, and obtaining a finished product after the repair welding is finished.
Preferably, in the step a, the middle segment and the end segment are bent by a bending machine.
Preferably, the end segment in step e is fixed on the processing tool by using a G-type clamp.
A processing tool for the bent grading ring comprises a workbench, an end section body supporting mechanism, a mounting bracket fixing mechanism and a middle section body fixing mechanism;
the end section body supporting mechanism comprises two opposite supporting plates, the supporting plates are fixed on the workbench in a position relation of being tangent to the middle section body, a hanging column used for hanging the U-shaped end section body is fixedly arranged on the plate surface of each supporting plate, and end limiting plates 23 for preventing two sides of the end section body from shaking are further fixedly arranged on the plate surface of each supporting plate;
the mounting bracket fixing mechanism comprises a bracket positioning plate fixed on the workbench, and a first fastener for fixing the mounting bracket is arranged on the bracket positioning plate;
the middle section body fixing mechanism comprises a jack and a middle section limiting plate, and the middle section limiting plate is fixed on the workbench and plays a role in limiting the position of the middle section body; the middle section body is stood on the workbench and is abutted against the middle section limiting plate to be placed, the jack is placed between the middle section body and the support positioning plate, one end of the jack is abutted against the support positioning plate, and the other end of the jack is abutted against the middle section body.
Preferably, a force application boss convenient for the force application of the jack is fixedly arranged on the plate body of the support positioning plate; the jack is placed in an inclined direction, one end of the jack abuts against the forced boss, and the other end of the jack acts on the central vertex position of the middle section body to tightly press the middle section body.
Preferably, the force application boss is a cylinder, and the force application boss is chamfered at a position where the force application boss is contacted with the end face of the jack.
Preferably, the first fastener of the bracket positioning plate is a bolt, and a threaded hole matched with the bolt is formed in the bracket positioning plate.
Preferably, the U-shaped end segment suspended on the end segment supporting mechanism is further provided with a second fastening piece for fastening the U-shaped end segment on the supporting plate.
Preferably, the second fastener is a G-shaped clamp.
Preferably, at least one supporting plate for supporting is arranged between the back of each supporting plate and the workbench.
Compared with the prior art, the invention has the beneficial effects that:
the method has ingenious and novel conception, adopts the method of sectional bending matched with vertex positioning for high-efficiency processing, and breaks through the processing thought of the traditional integral bending forming; the bending direction of each section of the sectional bending is consistent, and the bending is not needed in the height direction, so that the bending difficulty is simplified, the bending processing procedure in the height direction is saved, and the production efficiency is doubled; the vertex positioning method realizes rapid initial positioning of each segmented component, and the initial positioning is completely fixed, so that the positioning speed is high, the operation steps are simple, and the positioning is firm;
the processing tool has simple and ingenious structural design, and can preliminarily realize pre-positioning by grasping the vertex positions of all parts for design; the jack is ingenious in design, the end section body and the mounting bracket are respectively welded with the middle section body, so that the probability that the middle section body deforms due to stress in the welding process is greatly increased, the middle section body is firmly fixed by the interaction of the jack and the bracket positioning plate, namely, the middle section body is prevented from deforming after welding by rigid clamping of the jack, and the product processing accuracy is high; the processing tool can be used for forming a product at one time, the product can be demoulded by dismounting the fastening piece without matching with another tool, the production speed is high, and the efficiency is high; the processing tool is easy to manufacture, has low cost and strong practical value, and solves the technical problem of enterprises at low cost;
the invention completes the production with high efficiency and high quality by the lowest cost, the least production procedures and the simplest operation steps, and creates considerable economic value for enterprises.
Drawings
FIG. 1 is a schematic view of a top view structure of a curved grading ring according to the present invention;
FIG. 2 is a schematic side view of a curved grading ring according to the present invention;
FIG. 3 is a schematic view of a segmented processing structure of the curved grading ring of the present invention;
FIG. 4 is a schematic diagram of a structure of a welding point of the bending grading ring of the present invention;
FIG. 5 is a conceptual sketch schematic diagram of the present invention design tooling;
FIG. 6 is a first schematic view of the processing tool of the present invention in a three-dimensional structure;
FIG. 7 is a schematic view of the machining tool in a three-dimensional structure according to the present invention;
FIG. 8 is a schematic structural view of the machining tool in a front view direction or a rear view direction;
FIG. 9 is a schematic structural view of the machining tool in the left-view direction or the right-view direction;
FIG. 10 is a schematic top view of the present invention;
FIG. 11 is a first schematic view illustrating a first usage state of the machining tool of the present invention when machining a workpiece;
FIG. 12 is a second schematic view of the present invention in a working position of the working tool;
FIG. 13 is a third schematic view of the machining tool of the present invention in a working state when machining a workpiece;
fig. 14 is a fourth schematic view showing a state in which the machining tool of the present invention is used when machining a workpiece.
In the figure: 1. a work table; 2. an end segment support mechanism; 21. a support plate; 22. a suspension post; 23. an end limiting plate; 3. mounting a bracket fixing mechanism; 31. a bracket positioning plate; 32. a first fastener; 4. a middle section body fixing mechanism; 41. a jack; 42. a middle section limit plate; 43. a force application boss; a G-shaped clamp; 6. a support plate; 7. a curved grading ring; 71. the bottom of the ring body is enclosed; 72. mounting a bracket; 711. a middle section body; 712. an end segment.
Detailed Description
The invention is further described below with reference to the accompanying drawings:
a production and processing method of a bent grading ring is disclosed, wherein the bent grading ring 7 comprises a ring body bottom wall 71 and a mounting bracket 72 fixed on the ring body bottom wall 71, the bent grading ring 7 is processed by adopting a sectional type bending matching vertex positioning method, and the method specifically comprises the following operation steps,
a. processing the bottom wall in sections; the ring body bottom periphery 71 is considered to be formed by combining three sections, namely an arc-shaped middle section body 711 and end section bodies 712 symmetrically distributed at two ends of the middle section body 711, wherein the end section bodies 712 and the middle section body 711 are in a tangent relation; firstly, a middle section 711 and two end sections 712 are respectively machined; the middle section 711 also comprises two identical arc pipes, and the two arc pipes are bent for later use; the end segment body 712 is U-shaped, and the two end segment bodies 712 are bent for standby;
b. prepositioning the end segment body 712 and the middle segment body 711 with vertices; the middle section body 711 and the two end section bodies 712 are respectively provided with a unique central vertex, the middle section body 711 is horizontally placed on a machining tool, the end section bodies 712 are hung on the machining tool, and the vertexes are utilized to realize rapid pre-positioning of each part;
c. a fixed mounting bracket 72; a bracket positioning plate 31 is arranged on the machining tool, and a mounting bracket 72 is fixed on the bracket positioning plate 31;
d. a fixed middle section 711; a jack 41 is arranged between the support positioning plate 31 and the middle section body 711, one end of the jack 41 is abutted against the support positioning plate 31, and the other end of the jack is abutted against the middle section body 711;
e. a fixed end segment body 712; securing the end segment 712 to a tooling;
f. welding; welding the seam between the middle section 711 and the end section 712 and the seam between the mounting bracket 72 and the middle section 711;
g. repair welding after demolding; and f, unloading the product in the step f from the processing tool, performing repair welding on the seam which is not welded, and obtaining a finished product after the repair welding is finished.
Preferably, in the step a, the middle segment 711 and the end segment 712 are bent by a bending machine.
Preferably, the end segment 712 in step e is fixed to the processing tool by using a G-clamp 5.
A bending type grading ring processing tool comprises a workbench 1, an end section body support mechanism 2, a mounting bracket fixing mechanism 3 and a middle section body fixing mechanism 4;
the end section body supporting mechanism 2 comprises two supporting plates 21 which are oppositely arranged, the supporting plates 21 are fixed on the workbench 1 in a position relation of being tangent to the middle section body 711, a hanging column 22 for hanging the U-shaped end section body 712 is fixedly arranged on the plate surface of the supporting plates 21, and end limiting plates 23 for preventing the two sides of the end section body 712 from shaking are also fixedly arranged on the plate surface of the supporting plates 21;
the mounting bracket fixing mechanism 3 comprises a bracket positioning plate 31 fixed on the workbench 1, and a first fastening piece 32 for fixing the mounting bracket 72 is arranged on the bracket positioning plate 31;
the middle section fixing mechanism 4 comprises a jack 41 and a middle section limiting plate 42, and the middle section limiting plate 42 is fixed on the workbench 1 and plays a role in limiting the position of the middle section 711; the middle section body 711 stands on the workbench 1 and is abutted against the middle section limiting plate 42, the jack 41 is arranged between the middle section body 711 and the support positioning plate 31, one end of the jack 41 is abutted against the support positioning plate 31, and the other end of the jack is abutted against the middle section body 711.
Preferably, a force applying boss 43 convenient for the force applying of the jack 41 is fixedly arranged on the plate body of the bracket positioning plate 31; the jack 41 is placed in an inclined direction, one end of the jack 41 abuts against the force applying boss 43, and the other end of the jack acts on the central vertex position of the middle section body 711 to tightly press the middle section body 711.
Preferably, the force applying boss 43 is a column, and the force applying boss 43 is chamfered at a position contacting with the end surface of the jack 41.
Preferably, the first fastening member 32 of the bracket positioning plate 31 is a bolt, and the bracket positioning plate 31 is provided with a threaded hole matched with the bolt.
Preferably, the U-shaped end segment 712 suspended from the end segment carrier mechanism 2 is further provided with a second fastener for fastening the U-shaped end segment 712 to the pallet 21.
Preferably, the second fastener is a G-shaped clamp 5.
Preferably, at least one supporting plate 6 is arranged between the back of each supporting plate 21 and the working platform 1.
Example 1:
as shown in fig. 1-5 of the drawings, the curved grading ring 7 includes a ring bottom 71 and a mounting bracket 72 fixed to the ring bottom 71. The embodiment of the invention adopts a method of sectional bending and vertex positioning, and concretely comprises the following operation steps,
a. processing the bottom wall in sections; as shown in fig. 3 of the accompanying drawings, the ring body bottom 71 can be regarded as being formed by combining three parts, namely an arc-shaped middle section 711 and end section 712 symmetrically distributed at two ends of the middle section 711, wherein the end section 712 and the middle section 711 are in a tangential relationship according to the product design requirement; in this embodiment, a middle section 711 and two end sections 712 are first machined; the middle section 711 also comprises two identical arc pipes, and the two arc pipes are bent for later use; the end segment body 712 is U-shaped, and the two end segment bodies 712 are bent for standby;
b. the end segment body 712 and the middle segment body 711 are rapidly pre-positioned with vertices; the middle section body 711 and the two end section bodies 712 are respectively provided with a unique central vertex, the middle section body 711 is horizontally placed on a machining tool, the end section bodies 712 are hung on the machining tool, and the vertexes are utilized to realize rapid pre-positioning of each part;
c. a fixed mounting bracket 72; a bracket positioning plate 31 is arranged on the machining tool, and a mounting bracket 72 is fixed on the bracket positioning plate 31;
d. a fixed middle section 711; a jack 41 is arranged between the support positioning plate 31 and the middle section body 711, one end of the jack 41 is abutted against the support positioning plate 31, and the other end of the jack is abutted against the middle section body 711; at the moment, the tail end of the fixed mounting bracket is just attached to the fixed middle section body, and the attachment position is a point needing to be welded in the subsequent process;
e. a fixed end segment body 712; securing the end segment 712 to a tooling; in order to generate micro deformation when the joint of the end section body and the middle section body is welded, the working procedure of fixing the end section body is added, and the end section body is prevented from deforming by rigid clamping;
f. welding; as shown in fig. 4 of the accompanying drawings, a seam a between the middle section 711 and the end section 712 and a seam B between the mounting bracket 72 and the middle section 711 are welded; the mounting bracket is integrally formed by casting technology, which is a conventional technical means, and the mounting bracket is cast for standby in advance;
g. repair welding after demolding; and f, unloading the product in the step f from the processing tool, performing repair welding on the seam which is not welded, and obtaining a finished product after the repair welding is finished. For example, the welding seam at the position of the joint supporting plate is not well welded on a processing tool, and needs to be dismounted for repair welding.
Further, as shown in fig. 6 to 14 of the drawings attached to the specification, the curved grading ring processing tool of the embodiment includes a workbench 1, an end segment supporting mechanism 2, a mounting bracket fixing mechanism 3, and an intermediate segment fixing mechanism 4. The attached drawing of the specification and fig. 5 are a sketch concept of designing and processing tools, wherein a dotted line represents a workbench, b dotted line represents a supporting plate, the dotted line b is tangent to a middle line segment like an end section body, and the end section body can be lifted by the dotted line b, so that the bending processing procedure of a product in the height direction can be omitted.
The end segment supporting mechanism 2 of the present embodiment includes two opposite supporting plates 21, the supporting plates 21 are fixed on the worktable 1 in a tangential position relation with the middle segment 711, that is, the supporting plates 21 are fixed on the worktable 1 at a fixed angle, and the angle setting needs to satisfy the condition that the supporting plates are in a tangential relation with the middle segment horizontally placed on the worktable 1. The plate surface of the supporting plate 21 is fixedly provided with a suspension column 22 for suspending the U-shaped end section body 712; the plate surface of the supporting plate 21 is also fixedly provided with end limiting plates 23 for preventing the two sides of the end section body 712 from shaking, namely, the distance between the end limiting plates 23 is just equal to the width of the product.
The mounting bracket fixing mechanism 3 comprises a bracket positioning plate 31 fixed on the workbench 1, and a first fastening piece 32 for fixing the mounting bracket 72 is arranged on the bracket positioning plate 31; the grading ring mounting bracket is originally provided with a through hole, and the purpose of fixing the mounting bracket on the bracket positioning plate is realized by utilizing the through hole and the fastening piece.
The middle section body fixing mechanism 4 comprises a jack 41 and two middle section limiting plates 42, and the middle section limiting plates 42 are fixed on the workbench 1 and play a role in limiting the position of the middle section body 711; the middle section body 711 stands on the workbench 1 and is abutted against the middle section limiting plate 42, the jack 41 is arranged between the middle section body 711 and the support positioning plate 31, one end of the jack 41 is abutted against the support positioning plate 31, and the other end of the jack is abutted against the middle section body 711. The rapid pre-positioning can be realized only by placing the middle section body 711 attached middle section limiting plate 42 on the workbench 1, because the middle section body 711 attached middle section limiting plate 42 is placed, the central point of the middle section body 711 is supported as a stress point, two end points of the middle section body 711 can be just attached to a supporting plate tangent to the middle section body 711, and two end heads of the middle section body 711 cannot shake. After the pre-positioning is completed, the middle section body 11 is fixed by a jack. This embodiment jack design is comparatively ingenious, because the tip section body and installing support are equallyd divide do not will with middle section body welding, so middle section body can be strengthened greatly because of the probability that the stress takes place to warp in welding process, utilize the interact of jack and support locating plate firmly fix middle section body, just also the rigidity centre gripping that utilizes the jack prevents middle section body postweld deformation, product machining accuracy is high, need not follow-up adjustment, further reduces the process.
The processing method of the embodiment is ingenious and novel in conception, and efficient processing is realized by adopting a sectional bending matched vertex positioning method, so that the processing thought of the traditional integral bending forming is broken; the bending direction of each section of the sectional bending is consistent, and the bending is not needed in the height direction, so that the bending difficulty is simplified, the bending processing procedure in the height direction is saved, and the production efficiency is doubled; the vertex positioning method realizes rapid initial positioning of each segmented component, and the initial positioning is completely fixed, so that the positioning speed is high, the operation steps are simple, and the positioning is firm;
the processing tool is simple and ingenious in structural design, and preliminary pre-positioning can be achieved by holding the vertex positions of all the parts for design; the processing tool can be used for forming a product at one time, namely, after all parts are prepared, the product can be formed at one time, the die can be removed by dismounting the fastening piece without matching with another tool, the production speed is high, and the efficiency is high; the manufacturing is easy, the cost is very low, the practical value is very high, and the enterprise problem is solved at very low cost;
the embodiment completes the production with high efficiency and high quality by the lowest cost, the least production procedures and the simplest operation steps, and creates considerable economic value for enterprises.
Example 2:
as shown in fig. 1-5 of the drawings, the curved grading ring 7 includes a ring bottom 71 and a mounting bracket 72 fixed to the ring bottom 71. The bending of the embodiment adopts a method of sectional bending and vertex positioning, and the method specifically comprises the following operation steps,
a. processing the bottom wall in sections; as shown in fig. 3 of the accompanying drawings, the ring body bottom 71 can be regarded as being formed by combining three parts, namely an arc-shaped middle section 711 and end section 712 symmetrically distributed at two ends of the middle section 711, wherein the end section 712 and the middle section 711 are in a tangential relationship according to the product design requirement; in this embodiment, a middle section 711 and two end sections 712 are first machined; the middle section 711 includes two identical circular arc tubes, and the two circular arc tubes are bent for standby; the end segment body 712 is U-shaped, and the two end segment bodies 712 are bent for standby; in this embodiment, the intermediate block 711 and the end block 712 are bent by a bending machine.
b. The end segment body 712 and the middle segment body 711 are rapidly pre-positioned with vertices; the middle section body 711 and the two end section bodies 712 are respectively provided with a unique central vertex, the middle section body 711 is horizontally placed on a machining tool, the end section bodies 712 are hung on the machining tool, and the vertexes are utilized to realize rapid pre-positioning of each part;
c. a fixed mounting bracket 72; a bracket positioning plate 31 is arranged on the machining tool, and a mounting bracket 72 is fixed on the bracket positioning plate 31;
d. a fixed middle section 711; a jack 41 is arranged between the support positioning plate 31 and the middle section body 711, one end of the jack 41 is abutted against the support positioning plate 31, and the other end of the jack is abutted against the middle section body 711; at the moment, the tail end of the fixed mounting bracket is just attached to the fixed middle section body, and the attachment position is a point needing to be welded in the subsequent process;
e. a fixed end segment body 712; securing the end segment 712 to a tooling; in order to generate micro deformation when the joint of the end section body and the middle section body is welded, the working procedure of fixing the end section body is added, and the end section body is prevented from deforming by rigid clamping; the fixing of the end segment 712 to the machining tool in this embodiment is mainly realized by the G-clamp 5.
f. Welding; as shown in fig. 4 of the accompanying drawings, a seam a between the middle section 711 and the end section 712 and a seam B between the mounting bracket 72 and the middle section 711 are welded; the mounting bracket is integrally formed by casting technology, which is a conventional technical means, and the mounting bracket is cast for standby in advance;
g. repair welding after demolding; and f, unloading the product in the step f from the processing tool, performing repair welding on the seam which is not welded, and obtaining a finished product after the repair welding is finished. For example, the welding seam at the position of the joint supporting plate is not well welded on a processing tool, and needs to be dismounted for repair welding.
Further, as shown in fig. 6 to 14 of the drawings attached to the specification, the curved grading ring processing tool of the embodiment includes a workbench 1, an end segment supporting mechanism 2, a mounting bracket fixing mechanism 3, and an intermediate segment fixing mechanism 4. The attached drawing of the specification and fig. 5 are a sketch concept of designing and processing tools, wherein a dotted line represents a workbench, b dotted line represents a supporting plate, the dotted line b is tangent to a middle line segment like an end section body, and the end section body can be lifted by the dotted line b, so that the bending processing procedure of a product in the height direction can be omitted.
The end segment supporting mechanism 2 of the present embodiment includes two opposite supporting plates 21, the supporting plates 21 are fixed on the worktable 1 in a tangential position relation with the middle segment 711, that is, the supporting plates 21 are fixed on the worktable 1 at a fixed angle, and the angle setting needs to satisfy the condition that the supporting plates are in a tangential relation with the middle segment horizontally placed on the worktable 1. The plate surface of the supporting plate 21 is fixedly provided with a suspension column 22 for suspending the U-shaped end section body 712; the plate surface of the supporting plate 21 is also fixedly provided with end limiting plates 23 for preventing the two sides of the end section body 712 from shaking, namely, the distance between the end limiting plates 23 is just equal to the width of the product. In this embodiment, the U-shaped end segment 712 is further provided with a second fastening member for fastening the U-shaped end segment 712 to the supporting plate 21, and the second fastening member is a G-shaped clamp 5, that is, the G-shaped clamp 5 is used to fix the end segment 712 to the supporting plate. For the reason, if the end segment 712 is not fixed from the welding point of view, the center point and the two ends of the end segment are constrained to a certain degree, and the end segment is constrained in the height direction by the gravity of the end segment, so the end segment can be completely constrained. In this embodiment, at least one support plate 6 is provided on the back of each pallet 21, and the support plate 6 is fixed to the table on the one hand and to the pallet on the other hand.
The mounting bracket fixing mechanism 3 comprises a bracket positioning plate 31 fixed on the workbench 1, and a first fastening piece 32 for fixing the mounting bracket 72 is arranged on the bracket positioning plate 31; the grading ring mounting bracket is originally provided with a through hole, and the purpose of fixing the mounting bracket on the bracket positioning plate is realized by utilizing the through hole and the fastening piece.
The middle section body fixing mechanism 4 comprises a jack 41 and two middle section limiting plates 42, and the middle section limiting plates 42 are fixed on the workbench 1 and play a role in limiting the position of the middle section body 711; the middle section body 711 stands on the workbench 1 and is abutted against the middle section limiting plate 42, the jack 41 is arranged between the middle section body 711 and the support positioning plate 31, one end of the jack 41 is abutted against the support positioning plate 31, and the other end of the jack is abutted against the middle section body 711. The rapid pre-positioning can be realized only by placing the middle section body 711 attached middle section limiting plate 42 on the workbench 1, because the middle section body 711 attached middle section limiting plate 42 is placed, the central point of the middle section body 711 is supported as a stress point, two end points of the middle section body 711 can be just attached to a supporting plate tangent to the middle section body 711, and two end heads of the middle section body 711 cannot shake. After the pre-positioning is completed, the middle section body 11 is fixed by a jack. This embodiment jack design is comparatively ingenious, because the tip section body and installing support are equallyd divide do not will with middle section body welding, so middle section body can be strengthened greatly because of the probability that the stress takes place to warp in welding process, utilize the interact of jack and support locating plate firmly fix middle section body, just also the rigidity centre gripping that utilizes the jack prevents middle section body postweld deformation, product machining accuracy is high, need not follow-up adjustment, further reduces the process. The plate body of the bracket positioning plate 31 of the embodiment is fixedly provided with a forcing boss 43 which is convenient for the jack 41 to exert force; the jack 41 is arranged in an inclined direction, which is beneficial to the operation of workers and can improve the processing speed, one end of the jack 41 is propped against the acting boss 43, and the other end acts on the central vertex position of the middle section body 711 to tightly prop the middle section body 711; the force application boss 43 is a cylinder; the force applying boss 43 is chamfered at the position contacting with the end face of the jack 41, that is, the force applying boss 43 and the jack 41 are applied by the surface contact face, which is beneficial to the stability of the device and also prevents the abrasion of the end part of the jack. This embodiment fastener 32 is the bolt, all is equipped with on the support locating plate 31 both sides with this bolt assorted screw hole, and the through-hole that the bolt passed the installing support fixes the installing support on support locating plate 31.
The processing method of the embodiment is ingenious and novel in conception, and efficient processing is realized by adopting a sectional bending matched vertex positioning method, so that the processing thought of the traditional integral bending forming is broken; the bending direction of each section of the sectional bending is consistent, and the bending is not needed in the height direction, so that the bending difficulty is simplified, the bending processing procedure in the height direction is saved, and the production efficiency is doubled; the vertex positioning method realizes rapid initial positioning of each segmented component, and the initial positioning is completely fixed, so that the positioning speed is high, the operation steps are simple, and the positioning is firm;
the processing tool is simple and ingenious in structural design, and preliminary pre-positioning can be achieved by holding the vertex positions of all the parts for design; the processing tool can be used for forming a product at one time, namely, after all parts are prepared, the product can be formed at one time, the die can be removed by dismounting the fastening piece without matching with another tool, the production speed is high, and the efficiency is high; the manufacturing is easy, the cost is very low, the practical value is very high, and the enterprise problem is solved at very low cost;
the embodiment completes the production with high efficiency and high quality by the lowest cost, the least production procedures and the simplest operation steps, and creates considerable economic value for enterprises.
Therefore, the invention is not to be limited to the specific embodiments, but rather, all equivalent changes and modifications in the shapes, structures, characteristics and spirit of the invention are intended to be included within the scope of the appended claims.

Claims (10)

1. The utility model provides a crooked type equalizer ring production processing method, crooked type equalizer ring encloses and fixes the installing support that encloses at the bottom of the ring body, its characterized in that: the bending type grading ring is processed by adopting a method of sectional type bending matched vertex positioning, and specifically comprises the following operation steps,
a. processing the bottom wall in sections; the bottom of the ring body is seen to be formed by combining three sections, wherein the three sections are respectively an arc-shaped middle section body and end section bodies symmetrically distributed at two ends of the middle section body, and the end section bodies and the middle section body are in a tangent relation; firstly, respectively processing a middle section body and two end section bodies; wherein, the middle section body comprises two identical arc pipes which are bent for standby; the end section bodies are U-shaped, and the two end section bodies are bent for standby;
b. pre-positioning the end segment body and the middle segment body by using the vertex; the middle section body and the two end section bodies are respectively provided with a unique central vertex, the middle section body is horizontally placed on a processing tool, the end section bodies are hung on the processing tool, and the vertices are utilized to realize the rapid pre-positioning of each part;
c. fixing the mounting bracket; a bracket positioning plate is arranged on the machining tool, and the mounting bracket is fixed on the bracket positioning plate;
d. fixing the middle section body; a jack is arranged between the support positioning plate and the middle section body, one end of the jack is abutted against the support positioning plate, and the other end of the jack is abutted against the middle section body;
e. fixing the end segment; fixing the end section body on a processing tool;
f. welding; welding the joint between the middle section body and the end section body and the joint between the mounting bracket and the middle section body;
g. repair welding after demolding; and f, unloading the product in the step f from the processing tool, performing repair welding on the seam which is not welded, and obtaining a finished product after the repair welding is finished.
2. The production and processing method of the curved grading ring according to claim 1, characterized in that: and a bending machine is adopted to bend the middle section body and the end section body in the step a.
3. The production and processing method of the curved grading ring according to claim 1, characterized in that: and e, fixing the end section body in the step e on a processing tool by using a G-shaped clamp.
4. A processing tool applied to the production and processing method of the bent grading ring according to any one of claims 1 to 3 is characterized in that: comprises a workbench, an end segment supporting mechanism, a mounting bracket fixing mechanism and a middle segment fixing mechanism;
the end section body supporting mechanism comprises two opposite supporting plates, the supporting plates are fixed on the workbench in a position relation of being tangent to the middle section body, a hanging column used for hanging the U-shaped end section body is fixedly arranged on the plate surface of each supporting plate, and end limiting plates for preventing two sides of the end section body from shaking are further fixedly arranged on the plate surface of each supporting plate;
the mounting bracket fixing mechanism comprises a bracket positioning plate fixed on the workbench, and a first fastener for fixing the mounting bracket is arranged on the bracket positioning plate;
the middle section body fixing mechanism comprises a jack and a middle section limiting plate, and the middle section limiting plate is fixed on the workbench and plays a role in limiting the position of the middle section body; the middle section body is stood on the workbench and is abutted against the middle section limiting plate to be placed, the jack is placed between the middle section body and the support positioning plate, one end of the jack is abutted against the support positioning plate, and the other end of the jack is abutted against the middle section body.
5. The processing tool for the bent grading ring according to claim 4, characterized in that: a force application boss convenient for the force application of the jack is fixedly arranged on the plate body of the support positioning plate; the jack is placed in an inclined direction, one end of the jack abuts against the forced boss, and the other end of the jack acts on the central vertex position of the middle section body to tightly press the middle section body.
6. The processing tool for the bent grading ring according to claim 5, characterized in that: the force applying boss is a cylinder, and chamfering processing is carried out on the position, in contact with the top end face of the jack, of the force applying boss.
7. The processing tool for the bent grading ring according to claim 4, characterized in that: the first fastener of the support positioning plate is a bolt, and a threaded hole matched with the bolt is formed in the support positioning plate.
8. The processing tool for the bent grading ring according to claim 4, characterized in that: the U-shaped end section body hung on the end section body supporting mechanism is also provided with a second fastening piece for fastening the U-shaped end section body on the supporting plate.
9. The processing tool for the bent grading ring according to claim 8, characterized in that: the second fastener is a G-shaped clamp.
10. The processing tool for the bent grading ring according to claim 4, characterized in that: at least one supporting plate for supporting is arranged between the back of each supporting plate and the workbench.
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