CN203281712U - Sheet metal multipoint symmetric type vibration gradual composite precision forming system - Google Patents
Sheet metal multipoint symmetric type vibration gradual composite precision forming system Download PDFInfo
- Publication number
- CN203281712U CN203281712U CN2013200702344U CN201320070234U CN203281712U CN 203281712 U CN203281712 U CN 203281712U CN 2013200702344 U CN2013200702344 U CN 2013200702344U CN 201320070234 U CN201320070234 U CN 201320070234U CN 203281712 U CN203281712 U CN 203281712U
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- tool heads
- sheet metal
- support
- gradual
- forming
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Abstract
The utility model discloses a sheet metal multipoint symmetric type vibration gradual composite precision forming system. A main shaft of the sheet metal multipoint symmetric type vibration gradual composite precision forming system is vertically arranged on a rack, tool head supports are hinged to a mounting plate at the lower end of the main shaft, a motor driving a screw rod is fixedly arranged on the bottom portion of the mounting plate, support telescopic devices are arranged in the symmetric centers of the tool head supports, one end of a connecting rod on each support telescopic device is hinged to a nut at the center, the other end of each connecting rod is hinged to the middle portion of each tool head support, tool heads are fixedly arranged at the tail ends of the supports, lower dies are arranged under the tool head supports, and vibration exciters are connected with the positions under the lower dies. The sheet metal multipoint symmetric type vibration gradual composite precision forming system has the advantages that the rotary and radial telescopic forming motion of the forming tool heads of multiple symmetrically distributed structures is adopted, the motion precision of the tool heads can be controlled more effectively, forming errors are reduced, the stress state of sheet materials in the forming process is changed, the stress strain in the sheet materials is made to be homogenized, and the efficient and precise gradual composite forming of the sheet metal materials is achieved.
Description
Technical field
The utility model relates to the progressive combined precision formation system of a kind of sheet metal multiple spot symmetrical expression vibration.
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 successively 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 appear in discontinuity in the shaping plane, causes piling up, wrinkling, the defect 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, in uneven thickness in 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 utility model is mainly that exploitation a kind ofly can apply several symmetrical local vibration load to sheet material, realizes sheet material is carried out continuous high-efficient, the accurate progressive combined precision formation system of sheet metal multiple spot symmetrical expression vibration.
2, technical scheme
the progressive combined precision formation system of a kind of sheet metal multiple spot symmetrical expression vibration, machine tool chief axis 10 is vertically mounted on 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 arranged on the symmetrical centre position of tool heads support 5, connecting rod one end on 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 tool heads support 5, counterdie 9 be arranged on tool heads support 5 under, be connected under vibrator 8 and counterdie 9, be arranged on the workbench of lathe.
Tool heads 6 is symmetrical along circumference, can be with tool heads support 5 around machine tool chief axis 10 rotations.Tool heads 6 moves at radial direction and short transverse by support expansion bend 4.
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 the desired building motion of sheet material processing; 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 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 after 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 accelerate forming speed, can improve forming accuracy.
(5), due to the applying and the compound finishing of many tool heads of symmetrical loading, make the stress distribution in the shaping plane even, 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, sheet metal produces in forming process resistance of deformation reduces, strain rate and forming quality will be improved.
Description of drawings
Below in conjunction with drawings and Examples, the utility model is further illustrated.
Fig. 1 is the utility model structure diagram front view;
Fig. 2 is the utility model structure diagram top view.
In 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 arranged on 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 arranged on the inside of tool heads support, by the middle part of rod hinge connection in each tool heads support.
(3) nut under the driving of motor, can move up and down, and 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 arranged on 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 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 arranged on the symmetrical centre position of tool heads support (5), connecting rod one end on 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 tool heads support (5), counterdie (9) be arranged on tool heads support (5) under, be connected under vibrator (8) and counterdie (9).
2. sheet metal multiple spot symmetrical expression according to claim 1 vibrates progressive combined precision formation system, and it is characterized in that: tool heads (6) is symmetrical along circumference, with tool heads support (5), around machine tool chief axis (10), rotates.
3. sheet metal multiple spot symmetrical expression according to claim 1 vibrates progressive combined precision formation system, and 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 |
|---|---|---|---|
| CN2013200702344U CN203281712U (en) | 2013-02-07 | 2013-02-07 | Sheet metal multipoint symmetric type vibration gradual composite precision forming system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013200702344U CN203281712U (en) | 2013-02-07 | 2013-02-07 | Sheet metal multipoint symmetric type vibration gradual composite precision forming system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203281712U true CN203281712U (en) | 2013-11-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013200702344U Expired - Fee Related CN203281712U (en) | 2013-02-07 | 2013-02-07 | Sheet metal multipoint symmetric type vibration gradual composite precision forming system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203281712U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103071727A (en) * | 2013-02-07 | 2013-05-01 | 江西理工大学 | Multi-point symmetric vibration progressive composite and precise forming system for metal plate |
| CN112091065A (en) * | 2020-09-04 | 2020-12-18 | 山东大学 | Multi-tool-head flexible incremental forming device and method |
-
2013
- 2013-02-07 CN CN2013200702344U patent/CN203281712U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103071727A (en) * | 2013-02-07 | 2013-05-01 | 江西理工大学 | Multi-point symmetric vibration progressive composite and precise forming system for metal plate |
| CN112091065A (en) * | 2020-09-04 | 2020-12-18 | 山东大学 | Multi-tool-head flexible incremental forming device and method |
| CN112091065B (en) * | 2020-09-04 | 2021-08-06 | 山东大学 | Multi-tool-head flexible incremental forming device and method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131113 Termination date: 20140207 |