CN214488387U - C-shaped inner opening thin-wall metal ring part manufacturing equipment - Google Patents

C-shaped inner opening thin-wall metal ring part manufacturing equipment Download PDF

Info

Publication number
CN214488387U
CN214488387U CN202120435123.3U CN202120435123U CN214488387U CN 214488387 U CN214488387 U CN 214488387U CN 202120435123 U CN202120435123 U CN 202120435123U CN 214488387 U CN214488387 U CN 214488387U
Authority
CN
China
Prior art keywords
roller
shaped
driven
thin
driving
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN202120435123.3U
Other languages
Chinese (zh)
Inventor
董洪波
孙成通
田立学
苏旬奇
孙运珍
田源
田美怡
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Linyi Friendship Machinery Co ltd
Linyi University
Original Assignee
Linyi Friendship Machinery Co ltd
Linyi University
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Linyi Friendship Machinery Co ltd, Linyi University filed Critical Linyi Friendship Machinery Co ltd
Priority to CN202120435123.3U priority Critical patent/CN214488387U/en
Application granted granted Critical
Publication of CN214488387U publication Critical patent/CN214488387U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Abstract

The utility model provides an opening thin wall metal ring spare preparation equipment in C type, including the symmetry three-roller bucker, the symmetry three-roller bucker includes: two symmetrical driving rollers and a driven roller. The utility model provides an opening thin wall metal loop forming element in C type uneven, the cross-section precision is poor, the poor scheduling problem of circularity in the course of working.

Description

C-shaped inner opening thin-wall metal ring part manufacturing equipment
Technical Field
The utility model relates to a thin wall metal loop forming element makes the field, concretely relates to opening thin wall metal loop forming element preparation equipment in C type.
Background
The sealing ring is a thin-wall sealing ring which is used for high-speed rotation on an aircraft engine, is arranged between two flanges and is used for ensuring the sealing performance between the two flanges within a preset service life.
The section of the sealing ring has various shapes, and the sealing ring is commonly W-shaped or C-shaped. The utility model discloses to opening shape thin wall metal ring unit in the C type (as shown in fig. 1, fig. 2 and fig. 3), and this material is superalloy GH4169, belongs to difficult processing material.
According to the existing reports, the machining methods adopted at present comprise cutting machining, hydraulic forming, roll bending-rounding-welding forming and the like.
1. Cutting machining
The minimum wall thickness of the molded surface of the part is only 2.0mm, the part is extremely easy to deform during mechanical processing, the precision of the molded surface is high, the requirement on technical conditions is strict, and the precision is difficult to guarantee. Therefore, a method combining common machining and numerical control machining is specially adopted.
2. Hydroforming
A method for forming the external pressure of a moving die based on hydraulic forming establishes a finite element model, carries out numerical simulation and process test, discusses failure modes such as annular instability wrinkling and the like in the forming process and provides optimized process parameters.
However, in this method, circumferential buckling is the most dominant failure mode, and optimization of the hydraulic loading path of the die cavity is required. And the blank needs to reserve process supplement surface, so the material utilization rate is low.
3. Roll forming
The rolling process is a cold working forming technology which applies external force action to the surface of the part by using a roller at normal temperature to make the rolled part generate elastic-plastic deformation. The rolling process has no cutting chips or produces few cutting chips, and can fully utilize the plastic forming capacity of metal, thus improving the structure and mechanical property of metal material, making the surface structure of the rolled metal compact, refining crystal grains and making the crystal grain distribution more uniform. However, the rolling forming of the W-shaped sealing ring only has numerical simulation, and relevant physical experiments and products are not reported.
4. Roll bending-rounding-welding forming
The production process flow is specifically divided into uncoiling, straightening, roll bending, rounding and welding, and the process schematic diagram is shown in fig. 4. After being straightened, the metal plate is rolled and bent on a production line to obtain the part with the linear specific section. To obtain a technical product conforming to the shape, the rectilinear product is fed into a rounder. The product is formed by a rounding machine and then becomes an annular part with unconnected ports. And finally, welding the ports of the ring pieces together to obtain the W-shaped sealing ring. However, welding affects roundness and surface quality
In summary, the following problems exist in the prior art: because the C-shaped inner opening-shaped thin-wall metal ring part (C-shaped sealing ring) has the characteristics of complex section, thin thickness, small section size and the like, the problems of uneven thickness, poor section precision, poor roundness and the like easily occur in the processing process, and the sealing performance is influenced.
SUMMERY OF THE UTILITY MODEL
The utility model provides an opening thin wall loop metal element preparation equipment in C type to solve opening shape thin wall loop metal element in C type and easily appear thickness inhomogeneous, the cross-section precision is poor, the poor scheduling problem of circularity in the course of working.
Therefore, the utility model provides an opening thin wall metal ring unit preparation equipment in C type, opening thin wall metal ring unit preparation equipment includes in the C type: a symmetrical three-roller rolling machine is provided,
the symmetry three-roller bucker includes: the driving roll driving mechanism comprises two symmetrical driving rolls and a driven roll, wherein the axes of the two symmetrical driving rolls are parallel to the axis of the driven roll, the axes of the two symmetrical driving rolls and the axis of the driven roll form an isosceles triangle, and the axis of the driven roll is positioned at the top point of the isosceles triangle;
the driving roller is made of alloy; the diameter of the driving roller is larger than that of the driven roller;
each driving roller is provided with a concave rolling groove, the driven roller is a convex roller,
on the radial section, the shape of the inner wall of the rolling groove is matched with that of the outer wall of the C-shaped inner opening thin-wall metal annular part; the outer edge of the convex roller is matched with the shape of the inner wall of the C-shaped inner opening thin-wall metal annular piece.
Furthermore, the two driving rollers are driven by a motor, the motor is connected with a speed reducer, the speed reducer is connected with a coupler, and the speed reducer drives the two rollers to synchronously rotate through the coupler and a gear pair.
Further, the driven roller is driven in an electric mode to perform horizontal feeding and withdrawing movement.
Further, the driven roller horizontally feeds and withdraws and moves and adopts worm gear drive.
Further, the rolling groove of the driving roller and the convex roller are positioned in the same plane.
Further, the C-shaped inner opening thin-wall metal ring part manufacturing equipment further comprises: the setting is in two rolls of asymmetric plate bending machines before the symmetry three-roll bucker, two rolls of asymmetric plate bending machines include: rigid wheel and flexible wheel, the diameter of rigid wheel is less than the flexible wheel.
Further, the rotation speed of the drive roller is: 5-10 r/min.
Furthermore, the driven roller synchronously rotates according to the friction force, and gradually and horizontally feeds while rotating, so that the planar annular piece and the three rollers can simultaneously contact and generate rolling deformation.
Furthermore, the horizontal feeding and withdrawing movement of the driven roller is driven in a manual or electric mode, and the worm and gear drive is adopted.
Further, the horizontal feeding speed of the driven roller is set to: 0.1-0.5mm/s, while setting a stop to avoid over-feeding.
Furthermore, the minimum wall thickness of the C-shaped inner opening thin-wall metal annular part is less than 2.0mm, and the thickness is 2 mm.
The utility model discloses utilize the three-roller to drive the advantage that can better control work piece circularity, roll simultaneously between roller and roller, take shape out C type cross sectional shape with planar ring. The utility model provides an opening thin wall metal loop forming element in C type uneven, the cross-section precision is poor, the poor scheduling problem of circularity in the course of working.
Drawings
FIG. 1 is a schematic structural diagram of a C-shaped thin-walled metal annular part with an inner opening in a front view;
FIG. 2 is a sectional view A-A of FIG. 1;
FIG. 3 is a cross-sectional structure at B in FIG. 2;
FIG. 4 is a schematic view of the working principle of the present invention for rolling a sheet into a cylinder by using an asymmetric two-roll plate rolling machine;
FIG. 5 is a front view showing the operation of the present invention in the fabrication of a C-shaped thin-walled metal ring with an inner opening using a symmetrical three-roll mill;
fig. 6 is a perspective view showing the working principle of the present invention for manufacturing C-shaped inner opening thin-wall metal ring by using a symmetrical three-roller rolling machine.
The reference numbers illustrate:
50. a workpiece; 51. a rigid wheel; 52. a compliant wheel; 61. a drive roll; 62. a drive roll; 63. a driven roller.
Detailed Description
In order to clearly understand the technical features, objects and effects of the present invention, the present invention will now be described with reference to the accompanying drawings.
The C-shaped thin-wall metal ring part with the inner opening is made of GH4169 and belongs to a difficult-to-machine material. Because the parts have the characteristics of complex section, thin thickness, small section size and the like, the problems of uneven thickness, poor section precision, poor roundness and the like easily occur in the machining process, and the sealing performance of the sealing ring is influenced.
The method comprises the following specific steps:
1. blanking and pipe coiling: and (3) after the high-temperature alloy plate is blanked according to the calculated size, rolling the plate into a cylinder by using an asymmetric two-roller plate rolling machine. As shown in fig. 4, the asymmetric two-roll plate bending machine has a rigid wheel 51 and a compliant wheel 52 (the rigid wheel is 45# steel or high speed steel, the compliant wheel is made of polyurethane material), the diameter of the rigid wheel 51 is smaller than that of the compliant wheel 52, the rigidity of the rigid wheel 51 is greater than that of the compliant wheel 52, the plate-shaped workpiece 50 is rolled between the rigid wheel 51 and the compliant wheel 52, the plate-shaped workpiece 50 and the compliant wheel 52 are deformed, and the plate-shaped workpiece 50 forms a cylinder.
2. Welding: the circular plate, namely the cylinder, is welded into a straight seam circular tube through a laser welding machine, so that the welding seam is smooth and delicate.
3. And (3) segmentation cutting: and cutting the cylinder into planar annular parts according to the size of the unfolded C-shaped inner opening annular part section.
4. Symmetrical three-roller rolling forming:
as shown in fig. 5 and 6, the two symmetrical rollers of the present invention are the driving roller 61 and the driving roller 62 (the material is cold die steel), driven by the motor, and the reducer is connected to the coupler by the coupler, and the reducer drives the two rollers to rotate synchronously through the coupler and the gear pair. Rotation speed of the drive roll: 5-10 r/min.
The ring-shaped member, i.e. the smaller rollers inside the workpiece 50 are driven rollers 63 (because the thickness of the rollers is smaller, the rollers can be made of hard alloy with higher strength), and rotate synchronously by virtue of friction force, and gradually feed horizontally while rotating, so that the workpiece 50 can be in contact with the three rollers at the same time, each driving roller is provided with a concave rolling groove 65, the driving roller 61 and the driving roller 62 are in contact (tangency) with the outer wall or the outer edge of the workpiece 50, and the driven rollers 63 are convex rollers in contact (tangency) with the inner wall or the inner edge of the workpiece 50, and generate rolling deformation.
The diameter of the driven roller is smaller than the inner diameter of the open thin-wall metal annular part, the diameter of the driving roller is determined by the diameter of the driven roller and the position relation of the three rollers, and the stress point is on the connecting line of the axes of the driven roller and the driving roller during working.
The utility model discloses well horizontal feed adopts manual or electric mode drive, turbine worm transmission with withdrawing from the motion. The motor enables the screw rod nut to obtain corresponding revolution through the speed reducer and the worm, and enables the driven roller 63 to generate horizontal movement with corresponding speed through the screw rod. The horizontal feed speed was set at: 0.1-0.5mm/s, while setting a stop to avoid over-feeding.
5. Trimming: the driven roller 63 is withdrawn (horizontally) and the workpiece is taken out; and (6) trimming and polishing.
As shown in FIGS. 1, 2 and 3, the finished C-shaped thin-walled metal ring-shaped member with an inner opening shape has an inner diameter R2 of 29.68mm, an outer diameter R1 of 31.68mm, an outer height d1 of 2mm, an inner height of 1.56mm, a wall thickness of 2mm, and a longitudinal section arc radius R3 of 0.78 mm. The utility model discloses the C type internal opening loop forming element thickness of preparation is even, the cross-section precision is high, the circularity is good.
The above description is only exemplary of the present invention, and is not intended to limit the scope of the present invention. For the utility model discloses a each component can make up each other under the condition of conflict not, and any technical personnel in the field do not deviate from the utility model discloses an equal change and the modification made under the prerequisite of the design and principle all should belong to the scope of protection of the utility model.

Claims (6)

1. The manufacturing equipment for the C-shaped inner opening thin-wall metal annular part is characterized by comprising the following components in percentage by weight: a symmetrical three-roller rolling machine is provided,
the symmetry three-roller bucker includes: the driving roll driving mechanism comprises two symmetrical driving rolls and a driven roll, wherein the axes of the two symmetrical driving rolls are parallel to the axis of the driven roll, the axes of the two symmetrical driving rolls and the axis of the driven roll form an isosceles triangle, and the axis of the driven roll is positioned at the top point of the isosceles triangle;
the driving roller is made of alloy; the diameter of the driving roller is larger than that of the driven roller;
each driving roller is provided with a concave rolling groove, the driven roller is a convex roller,
on the radial section, the shape of the inner wall of the rolling groove is matched with that of the outer wall of the C-shaped inner opening thin-wall metal annular part; the outer edge of the convex roller is matched with the shape of the inner wall of the C-shaped inner opening thin-wall metal annular piece.
2. The manufacturing equipment of the C-shaped inner opening thin-wall metal annular part as claimed in claim 1, wherein the two driving rollers are driven by a motor, the motor is connected with a speed reducer, the speed reducer is connected with a coupler, and the speed reducer drives the two rollers to synchronously rotate through the coupler and a gear pair.
3. The apparatus for manufacturing a C-shaped thin-walled metal ring-shaped member as claimed in claim 1, wherein the driven roller is electrically driven for horizontal feeding and withdrawing.
4. The apparatus for manufacturing C-shaped thin-walled metal ring parts with inner openings as claimed in claim 1, wherein the horizontal feeding and withdrawing movements of the driven rollers are driven by worm gears.
5. The apparatus for manufacturing a C-shaped thin-walled metal ring unit with an internal opening according to claim 1, wherein the rolling grooves of the driving rolls and the convex rollers are located in the same plane.
6. The C-shaped inner open thin-walled metal ring element fabrication apparatus as claimed in claim 1, further comprising: the setting is in two rolls of asymmetric plate bending machines before the symmetry three-roll bucker, two rolls of asymmetric plate bending machines include: rigid wheel and flexible wheel, the diameter of rigid wheel is less than the flexible wheel.
CN202120435123.3U 2021-02-26 2021-02-26 C-shaped inner opening thin-wall metal ring part manufacturing equipment Active CN214488387U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202120435123.3U CN214488387U (en) 2021-02-26 2021-02-26 C-shaped inner opening thin-wall metal ring part manufacturing equipment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202120435123.3U CN214488387U (en) 2021-02-26 2021-02-26 C-shaped inner opening thin-wall metal ring part manufacturing equipment

Publications (1)

Publication Number Publication Date
CN214488387U true CN214488387U (en) 2021-10-26

Family

ID=78226641

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202120435123.3U Active CN214488387U (en) 2021-02-26 2021-02-26 C-shaped inner opening thin-wall metal ring part manufacturing equipment

Country Status (1)

Country Link
CN (1) CN214488387U (en)

Similar Documents

Publication Publication Date Title
Xia et al. A review of process advancement of novel metal spinning
CN101214510B (en) Blind hole internal gear precision forming method and internal tooth forming mold
CN104324988B (en) Symmetrical expression four roller curling process method and devices
CN105033125A (en) Titanium alloy equal-thickness thin-wall special-shaped annular piece rolling and expanding composite forming method
CN102019333B (en) Rolling and forming method of cobalt-base superalloy high cylindrical ring forging
CN102601278B (en) Method for radially and axially rolling and forming large-sized double-edge stepped ring parts
CN105414297A (en) Asynchronous stagger spinning machining method
KR101104648B1 (en) Pilger die, pilger mandrel, the manufacturing method thereof, and dashpot tube for nuclera fuel assembly
CN214488387U (en) C-shaped inner opening thin-wall metal ring part manufacturing equipment
Rauschnabel et al. Modern applications of radial forging and swaging in the automotive industry
CN103691854B (en) The roll forming of cobalt base superalloy straight-flanked ring base is the method for special-shaped thin wall ring
CN101966553B (en) Method for manufacturing rear axle driven gear of small and medium-sized automobile
CN109174970B (en) Method and device for rolling and forming metal special-shaped pipe based on hydraulic forming
CN113020904A (en) Method and equipment for manufacturing C-shaped inner-opening thin-wall metal annular part
CN102085550B (en) Rolling molding method for nickel-based high-temperature alloy high cylindrical ring forged piece
CN102085551B (en) Roll forming method of iron-based high-temperature alloy high cylinder ring forging
CN110666081B (en) Rolling method of alloy steel special-shaped ring piece with section containing abrupt change curve
CN110788175B (en) Roll bending forming method and device for straight edge of pipe to be welded
CN206104625U (en) Device in straight flange hole is made to turning up on hollow closed part of complicated curved surface
CN214108649U (en) Forming device of annular part
CN212884278U (en) Sheet bending apparatus
CN111790768A (en) Eccentric rolling forming device and method for thin-wall metal micro pipe fitting
CN110666044B (en) Storage tank bottom convex hole die
CN214516742U (en) Contact type rotary rolling device in tubular workpiece
CN103084520B (en) A kind of precision rolling manufacturing process of interior step cylindrical workpiece and device

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant