CN103071727A - Multi-point symmetric vibration progressive composite and precise forming system for metal plate - Google Patents
Multi-point symmetric vibration progressive composite and precise forming system for metal plate Download PDFInfo
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- CN103071727A CN103071727A CN2013100483002A CN201310048300A CN103071727A CN 103071727 A CN103071727 A CN 103071727A CN 2013100483002 A CN2013100483002 A CN 2013100483002A CN 201310048300 A CN201310048300 A CN 201310048300A CN 103071727 A CN103071727 A CN 103071727A
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Abstract
The invention discloses a multi-point symmetric vibration progressive composite and precise forming system for a metal plate. The main shaft of the multi-point symmetric vibration progressive composite and precise forming system for the metal plate is vertically installed on a rack; a tool head bracket is hinged to a mounting plate on the lower end of the main shaft; a motor for driving a lead screw is fixedly arranged on the bottom of the mounting plate; a bracket expansion device is installed on the symmetric center position of the tool head bracket; one end of a connecting rod on the bracket expansion device is hinged to a nut on the center position; the other end of the connecting rod is hinged to the middle of the tool head bracket; a tool head is fixedly arranged on the tail end of the bracket; a lower die is installed under the tool head bracket; and a vibration exciter is connected with the position under the lower die. The multi-point symmetric vibration progressive composite and precise forming system for the metal plate has the beneficial effects that a plurality of forming tool heads with the symmetric distribution structure are adopted to rotate and carry out radial expanding and forming movement, so that the movement precision of the tool heads can be more effectively controlled, the forming error is reduced, the stressed state of the plate in the forming process is improved, the stress strain in the plate is homogenized, and the metal plate material can be subjected to efficient progressive composite and precise forming.
Description
Technical field
The present invention relates to a kind of sheet metal multiple spot symmetrical expression and vibrate progressive combined precision formation system.
Background technology
Sheet metal digital incremental forming is the thought of utilizing layering to make, replaces the profile of mould with the formed enveloping surface of the motion of tool heads, and sheet material is carried out one by one local deformation, finally makes sheet material be processed as the workpiece of required shape.
There is following defective workmanship in single-point progressive molding technique, and the one, sheet material is in forming process, and unstability easily appears in discontinuity in the shaping plane, causes piling up, wrinkling, the defective such as break.The 2nd, process velocity is slow, and production efficiency is low.The 3rd, the individual tool head can't carry out effective finishing to same shaping aspect in forming process, cause profiled surface of low quality.The 4th, because the strain in the shaping plane is inhomogeneous, resilience is uncontrollable, interior in uneven thickness of shaped region, and scale error and the form error of the part that is formed are larger.
Summary of the invention
1, goal of the invention
The present invention mainly is that exploitation a kind ofly can apply several symmetrical local vibration load to sheet material, realizes sheet material is carried out continuous high-efficient, accurate combined shaping method and device.
2, technical scheme
The progressive combined precision building mortion of a kind of sheet metal multiple spot symmetric vibration, machine tool chief axis 10 is vertically mounted on the frame 1, tool heads support 5 is articulated on the installing plate 2 of main shaft lower end, the motor 3 that drives screw mandrel 11 is fixed on the bottom of installing plate 2, support expansion bend 4 is installed in the symmetrical centre position of tool heads support 5, connecting rod one end on the support expansion bend 4 is articulated in the nut 12 of center, the other end is articulated in the middle part of tool heads support 5, tool heads 6 is fixed on the end of support 5, counterdie 9 be installed in tool heads support 5 under, be connected under vibrator 8 and the counterdie 9, be installed on the workbench of lathe.
Tool heads 6 is symmetrical along circumference, can rotate 10 around main-shaft axis with support 5.Tool heads 6 by support expansion bend 4, can move at radial direction and short transverse tool heads 6 in support 5 rotations.
3, technique effect
(1) by the rotation of main shaft, tool heads moves up and down along main-shaft axis, and the mobile route of being planned each tool heads by the support expansion bend, can realize comparatively easily that sheet material processes desired building motion; In forming process, adopt tool heads to rotate around the spindle, and the counterdie maintenance is motionless, building motion is comparatively simple, and the kinematic accuracy of tool heads is higher, and is easy to control.
(2) on a plurality of symmetrical circumference and highly identical tool heads, can form symmetrical loading in the shaping plane is applied on the sheet material, force-bearing situation and the molding condition of processed sheet metal in forming process improved, improve the stability of sheet material in forming process, reduce or avoid piling up, the generation of wrinkling and defects i.e.cracks.
(3) each tool heads is behind the internal shaping certain area of same shaping plane, can carry out finishing to its place ahead formed machining area of adjacent tool heads, and the quantity of tool heads is more, shaped region is more by the road number of times of finishing, and the expansion effect that the progressive combined shaping of sheet metal occurs is more obvious.
(4) quantity of tool heads and arrangement form thereof can be determined according to shape and structure and the required precision of the part that is formed; The choose reasonable of tool heads quantity can be accelerated forming speed, can improve forming accuracy.
(5) because applying and the compound finishing of many tool heads of symmetrical loading makes the stress distribution in the shaping plane even, and strain rate is also basically identical, thereby the resilience of workpiece reduces, and forming accuracy, surface quality and forming efficiency are improved.
(6) in the situation that vibration parameters and forming parameters Proper Match, the resistance of deformation that sheet metal produces in forming process reduces, strain rate and forming quality will be improved.
Description of drawings
The present invention is further described below in conjunction with drawings and Examples.
Fig. 1 is structure diagram front view of the present invention.
Fig. 2 is structure diagram top view of the present invention.
Among the figure: 1. bed piece, 2. installing plate, 3. expansion bend drive motors, 4. support expansion bend, 5. tool heads support, 6. tool heads, 7. shaped sheet, 8. vibrator, 9. counterdie, 10. machine tool chief axis, 11. screw mandrels, 12. nuts.
The specific embodiment
(1) be installed on the lathe bed main shaft on the one hand, can drive the tool heads support and rotate around the axis of main shaft, can drive on the other hand tool heads and rotate along main-shaft axis, realize the main motion of sheet material forming.
(2) expansion bend is installed in the inside of tool heads support, by the middle part of rod hinge connection in each tool heads support.
(3) nut can move up and down under the driving of motor, drives the tool heads support by connecting rod flexible along radial direction, makes tool heads when rotating, can be along the feeding between different contour levels of main-shaft axis direction.
(4) be installed in counterdie (workbench) below, in forming process, vibrator vibrates with certain frequency and amplitude, and alternating shock load is applied to shaped region, realizes that the progressive combined precision of sheet material multiple spot is shaped.
(5) according to vibration Plastic Forming condition, set up the matching mechanisms of the modal parameters such as the frequency of the technological parameter of the symmetrical progressive combined shaping of multiple spot and vibrator and amplitude, make the sheet material can progressive forming under the effect of alternating shock load.
Claims (3)
1. sheet metal multiple spot symmetrical expression vibrates progressive combined precision formation system, it is characterized in that: machine tool chief axis (10) is vertically mounted on the frame (1), tool heads support (5) is articulated on the installing plate (2) of main shaft lower end, the motor (3) that drives screw mandrel (11) is fixed on the bottom of installing plate (2), support expansion bend (4) is installed in the symmetrical centre position of tool heads support (5), connecting rod one end on the support expansion bend (4) is articulated in the nut (12) of center, the other end is articulated in the middle part of tool heads support (5), tool heads (6) is fixed on the end of support (5), counterdie (9) be installed in tool heads support (5) under, be connected under vibrator (8) and the counterdie (9).
2. sheet metal multiple spot symmetrical expression according to claim 1 vibrates progressive combined precision formation system, it is characterized in that: tool heads (6) is symmetrical along circumference, rotates (10) with support (5) around main-shaft axis.
3. sheet metal multiple spot symmetrical expression according to claim 1 vibrates progressive combined precision formation system, it is characterized in that: tool heads (6) moves at radial direction and short transverse by support expansion bend (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013100483002A CN103071727A (en) | 2013-02-07 | 2013-02-07 | Multi-point symmetric vibration progressive composite and precise forming system for metal plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013100483002A CN103071727A (en) | 2013-02-07 | 2013-02-07 | Multi-point symmetric vibration progressive composite and precise forming system for metal plate |
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| CN103071727A true CN103071727A (en) | 2013-05-01 |
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| CN2013100483002A Pending CN103071727A (en) | 2013-02-07 | 2013-02-07 | Multi-point symmetric vibration progressive composite and precise forming system for metal plate |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104138949A (en) * | 2014-06-27 | 2014-11-12 | 江西理工大学 | Multi-point compound incremental forming device for sheet metal |
| CN108284153A (en) * | 2018-03-28 | 2018-07-17 | 吉林大学 | The adaptive tool heads of multiple spot integrated form for rotating progressive molding and manufacturing process |
| CN110479838A (en) * | 2019-08-02 | 2019-11-22 | 武汉理工大学 | The split type space envelope manufacturing process of ultra-large type thin-walled entirety store-vessel bottom |
| CN114535429A (en) * | 2022-03-16 | 2022-05-27 | 江苏神舟车业集团有限公司 | Automobile sheet metal machining auxiliary device |
| CN114985654A (en) * | 2022-05-27 | 2022-09-02 | 武汉理工大学 | Design method of multi-degree-of-freedom envelope forming high-precision high-rigidity die frame die system |
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| JPS6228032A (en) * | 1985-07-30 | 1987-02-06 | Mitsubishi Electric Corp | Deep drawing method for metallic foil |
| JP4584594B2 (en) * | 2004-01-09 | 2010-11-24 | 川崎重工業株式会社 | Mold and molding method using mold |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104138949A (en) * | 2014-06-27 | 2014-11-12 | 江西理工大学 | Multi-point compound incremental forming device for sheet metal |
| CN108284153A (en) * | 2018-03-28 | 2018-07-17 | 吉林大学 | The adaptive tool heads of multiple spot integrated form for rotating progressive molding and manufacturing process |
| CN110479838A (en) * | 2019-08-02 | 2019-11-22 | 武汉理工大学 | The split type space envelope manufacturing process of ultra-large type thin-walled entirety store-vessel bottom |
| CN110479838B (en) * | 2019-08-02 | 2020-09-01 | 武汉理工大学 | Split type space enveloping forming method for bottom of ultra-large thin-wall integral storage tank |
| CN114535429A (en) * | 2022-03-16 | 2022-05-27 | 江苏神舟车业集团有限公司 | Automobile sheet metal machining auxiliary device |
| CN114535429B (en) * | 2022-03-16 | 2023-12-22 | 江苏神舟车业集团有限公司 | Auxiliary device for magnesium aluminum alloy automobile sheet metal machining |
| CN114985654A (en) * | 2022-05-27 | 2022-09-02 | 武汉理工大学 | Design method of multi-degree-of-freedom envelope forming high-precision high-rigidity die frame die system |
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Application publication date: 20130501 |