CN202539287U - Bending machine - Google Patents
Bending machine Download PDFInfo
- Publication number
- CN202539287U CN202539287U CN 201220015367 CN201220015367U CN202539287U CN 202539287 U CN202539287 U CN 202539287U CN 201220015367 CN201220015367 CN 201220015367 CN 201220015367 U CN201220015367 U CN 201220015367U CN 202539287 U CN202539287 U CN 202539287U
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- China
- Prior art keywords
- slide block
- tapered wedges
- lead screw
- deflection
- slide
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- 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.)
- Expired - Lifetime
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- Bending Of Plates, Rods, And Pipes (AREA)
Abstract
The utility model discloses a bending machine. The bending machine comprises a machine frame, a slide block and a work table. Two ends and the middle of the slide block are all connected with independent lead screw drive mechanisms, a feed screw nut of each lead screw drive mechanism is arranged on the machine frame through a bearing and is driven to rotate by a motor arranged on the machine frame, a lead screw is screwed on the feed screw nut, and the bottom of the lead screw is connected with the slide block. A deflection compensation device is arranged on the work table, a face plate of the work table is arranged on the deflection compensation device, and the deflection compensation device can compensate deflection of the work table according to load of the bending machine in the process of work. The lead screw drive mechanisms on the two ends stop working after driving the slide block to a prearranged position, the lead screw drive mechanisms on the middle continue to drive the slide block to move for some distance to compensate elastic deformation of the slide block and the machine frame in the process of loading, and therefore two-way deflection compensation of the bending machine is achieved. In addition, deflection compensation values of the work table and the slide block are decided by the machine frame, rigidity of the slide block and a workpiece, and therefore digital control and automatic compensation of two-way deflection of the bending machine can be achieved.
Description
Technical field
The utility model relates to a kind of bender, particularly a kind of bender with bidirectional deflection automatic compensation function.
Background technology
Bender is a kind of processing equipment with metal blank straight line bending and molding under cold conditions; Present bender generally is a stationary table; Slide block is through rectilinear motion about the hydraulic jack driven in synchronism at two ends; Patrix through being installed in slider bottom and the counterdie on the workbench are with workpiece compression moulding.
The mould that bender uses is straight line, sleeve configuration, since the frame of supporting mould, the reason of slide block and workbench etc. self rigidity; The certain amount of deflection of unavoidable appearance causes workpiece bending angle phenomenon small in ends, broad in the middle; Raise up in the middle of the patrix 1` as shown in Figure 1; To lower recess, cause bending angle intermediate angle problem bigger than normal after the workpiece 3` moulding in the middle of the counterdie 2`, can't satisfy the requirement of bending angle.For addressing this problem, the method one that adopts usually is to strengthen the rigidity of bender frame, the 2nd, deflection compensation method; Deflection compensation method principle be on the bottom surface of supporting mould (upper die and lower die), increase in advance one with stressed deflection in the opposite direction, this deflection is just offset the strain of machine body.
The deflection compensation method also has two kinds, and a kind of is unidirectional penalty method, and flexibility compensating device is installed on workbench exactly, and its compensation rate not only will compensate the deflection of the workbench that supports counterdie, also will add the deflection of the slide block that patrix is installed.Method two is the bidirectional compensating method, and flexibility compensating device all is installed on workbench and slide block exactly, compensates the deflection from upper die and lower die respectively.
Yet all there is defective in existing method, and the method for strengthening bender rigidity can increase machine volume and weight, increases cost of manufacture and transport difficulty, and this method only is applicable to the bender of less tonnage.The deflection compensation method, unidirectional penalty method, the compensation rate of workbench is the deflection of compensation work platform oneself not only; The deflection that also will add top shoe, causing Workpiece shaping is not straight line, and becomes middle high, a low curve in two ends; Do unidirectional compensation for as shown in Figure 2; All raise up in the middle of patrix 1` and the counterdie 2`, though solved the consistent problem of workpiece 3` total length angle, but the problem that workpiece is crooked, can not satisfy the linearity requirement has appearred.
The bidirectional compensating method is optimal method, and patrix 1` as shown in Figure 3 and counterdie 2` increase certain compensation, to offset deflection separately, satisfies the requirement of angle and linearity after the workpiece 3` moulding.Present bender adopts two hydraulic jack driving sliding block usually, stretches into the inner part of bender during the plate bending and is upturned, and for avoiding influencing the bending angle, above patrix, must reserve certain space.But amount of deflection autocompensation installation structure generally complicacy take up space greatly, and it is floating structure, the hidden danger of mould separating can appear in floating structure, can't be installed in below the slide block, generally can only be contained on the workbench.Receive the limitation of installing space and amount of deflection autocompensation installation structure; The amount of deflection autocompensation installation can not be installed in slide block lower end in that patrix is installed; Therefore only can realize that the amount of deflection of workbench compensates automatically, slide block can only pass through manual compensation, and the manual adjustments compensating operation is more loaded down with trivial details; Waste time and energy, can only carry out trickle compensation and precision can't guarantee.
So have the bender of deflection compensation function at present, can not realize that all bidirectional deflection compensates automatically, can't realize digital control, automated job.
The utility model content
The utility model aims to provide a kind of bender with bidirectional deflection automatic compensation function, but its high accuracy bending plate.
The described bender of the utility model; Comprise frame, slide block and workbench; Two ends and middle part at slide block all are connected with independently lead screw transmission mechanism, and the feed screw nut of each lead screw transmission mechanism is installed on the frame through bearing, by its rotation of rack-mounted motor-driven; Its screw mandrel then is threaded onto on the feed screw nut, and the bottom connects slide block; Flexibility compensating device is installed on the workbench, and worktable panel places on the flexibility compensating device.
The described bender of the utility model, during work the control flexibility compensating device according to the load of machine, compensation work platform self scratch change; Two ends and middle part at slide block are connected with a plurality of independently lead-screw drive mechanisms, and the feed screw nut of each lead screw transmission mechanism is installed on the frame through bearing is rotating, by rack-mounted motor-driven feed screw nut's rotation; The screw mandrel that the feed screw nut then promotes to revolve on it moves down; The screw mandrel bottom is fixedly connected slide block, moves down thereby promote slide block, in moving process;, the lead screw transmission mechanism driving sliding block that is arranged on the slide block two ends under the driving of motor quits work after arriving preset position; The lead screw transmission mechanism at middle part continues driving sliding block and moves a segment distance, and the strain when compensation slide block and frame load realizes the bidirectional deflection compensation; The deflection compensation value of workbench and slide block can be confirmed according to the rigidity of frame, slide block and thickness, the length computation of workpiece; Thereby can realize digital control, through digital control system control flexibility compensating device with drive the machine operation of lead screw transmission mechanism or stop; And then deflection compensation value and the lead screw transmission mechanism of control workbench realize the function that bidirectional deflection compensates automatically to the deflection compensation value of slide block.
The said bender of the utility model can realize that through digital control system bidirectional deflection compensates automatically, can the high accuracy bending workpieces; Satisfy the requirement of workpiece total length angle and linearity; Slide block adopts a plurality of lead screw transmission mechanism to drive, and it not only realizes the pressurization to workpiece, can realize the deflection compensation to slide block again; Simple in structure, practical.
Description of drawings
Fig. 1 is the bender work sketch map of no deflection compensation function.
Fig. 2 is the bender work sketch map that unidirectional deflection compensation function is arranged.
Fig. 3 is the bender work sketch map that the bidirectional deflection compensate function is arranged.
Fig. 4 is the front view of the utility model.
Fig. 5 is the A-A cutaway view of Fig. 4.
Fig. 6 is the cutaway view of the utility model flexibility compensating device.
Fig. 7 is the B-B cutaway view of Fig. 6.
Fig. 8 is the utility model lead screw transmission mechanism and the sketch map that is connected of slide block.
The specific embodiment
Below in conjunction with accompanying drawing and embodiment the utility model content is described further.
Like Fig. 4, Fig. 5, Fig. 6, Fig. 7, shown in Figure 8, the utility model discloses a kind of bender with bidirectional deflection automatic compensation function, comprise frame 1; Slide block 2 and 15, four lead screw transmission mechanism a of workbench, b; C, d is fixedly connected lead screw transmission mechanism a with slide block 2; D is separately positioned on the two ends of slide block 2 horizontal directions, and lead screw transmission mechanism b, c are arranged on the medium position of slide block 2; Flexibility compensating device e is installed on the workbench 15, and worktable panel 16 is placed on the flexibility compensating device e, and counterdie 14 is installed on the worktable panel; The feed screw nut of each lead screw transmission mechanism is fixedly mounted in the bearing, and on frame, by its rotation of rack-mounted motor-driven, screw mandrel is threaded onto on the feed screw nut feed screw nut respectively through bearing fixing, and the screw mandrel bottom is fixedly connected with slide block.Like Fig. 5, be the structure of one of them lead screw transmission mechanism, motor 3 connecting filament stem nuts 8 drive its rotation, and screw mandrel 7 is threaded onto on the feed screw nut 8, and its bottom is fixedly connected with slide block 2, and patrix 13 is installed in slide block 2 bottoms.
During work according to the load of machine, the deflection of control flexibility compensating device e compensation work platform 15 self; The motor-driven feed screw nut of each lead screw transmission mechanism rotates, and the feed screw nut promotes screw mandrel and moves down, and screw mandrel drives slide block and moves down; In moving process, be arranged on the lead screw transmission mechanism a at slide block two ends, after arriving preset position, d driving sliding block 2 quits work; The lead screw transmission mechanism b at middle part; C continues driving sliding block 2 and moves a segment distance, and the strain when compensation slide block 2 and frame 1 load realizes the bidirectional deflection compensation; Through being installed in the counterdie 14 and the patrix 13 that is installed in slide block 2 bottoms on the worktable panel 16, with workpiece compression moulding.
The deflection compensation value of flexibility compensating device e and lead screw transmission mechanism are to the deflection compensation value of slide block, frame; Can be according to the rigidity of frame, slide block and thickness, the length decision of workpiece; System end in the bender control is installed digital control system; Digital control system drives the machine operation of lead screw transmission mechanism through control or stops, and the displacement of control lead screw transmission mechanism driving sliding block realizes the deflection compensation to slide block; Simultaneously also can control the deflection compensation value of flexibility compensating device, can realize Digital Control, satisfy the deflection compensation requirement of different plates, realize that bidirectional deflection compensates automatically workbench.
The above bender; At slide block two ends and middle part, a plurality of lead screw transmission mechanism can be set, when the course of work; All lead screw transmission mechanism driving sliding block simultaneously move down; Quit work after the lead screw transmission mechanism driving sliding block that is arranged on two ends arrives preset position, middle other lead screw transmission mechanism continues driving sliding block and moves a segment distance, plays the effect of deflection compensation.
The said bender of the utility model; Can be through the displacement of digital control system control lead screw transmission mechanism driving sliding block; With the flexibility compensating device that is positioned at below the worktable panel, realize that bidirectional deflection compensates automatically, promptly satisfy the consistent requirement of workpiece total length angle; Satisfy the requirement of workpiece linearity simultaneously, satisfy the high accuracy bending workpieces.Slide block adopts a plurality of lead screw transmission mechanism driving sliding block, and it not only realizes the pressurization to workpiece, can realize the deflection compensation to slide block again, and is simple in structure, easy to use, practical.
Like Fig. 6 and Fig. 7, the above bender is installed in the flexibility compensating device e on workbench; Comprise grooved base e6, slide e5 is installed in the groove of base e6, and slide e5 one end is connected with the screw mandrel driving mechanism; Can drive slide e5 move left and right in groove; A plurality of separate little tapered wedges are arranged in order and are fixed on slide e5 through screw e2 and go up form tapered wedges e4 down, and what cooperate with following tapered wedges e4 is arranged in order the last tapered wedges e1 that forms by a plurality of little tapered wedges and is placed on down on the tapered wedges e4, and worktable panel 16 bottoms are fixed through screw e2 and last tapered wedges e1; Upper and lower tapered wedges inclined-plane is placed in opposite directions; Each little tapered wedges slope of tapered wedges e1 and following tapered wedges e4 is inequality on the composition, and each little tapered wedges its slope from the centre to two ends reduces gradually, at base e6 one end motor e8 is installed; An end and slide e5 that the feed screw nut e9 of said screw rod driving device is installed in slide e5 fix; Screw mandrel e7 is threaded onto on the feed screw nut e9, and its other end is connected with motor e8, through its rotation of motor-driven.
The above flexibility compensating device e; Feed screw nut e9 is fixed on the slide e5; Driving screw mandrel e7 through motor e8 rotates to different directions; Be converted into screw mandrel e7 and promote to be fixed with the slide e5 move left and right of feed screw nut e9, drive and be fixed on the following tapered wedges e4 move left and right on the slide e5, tapered wedges e1 descends mobile in vertical direction following tapered wedges e4 promotions in.Reduce gradually owing to form to go up each little tapered wedges its slope from the centre to two ends of tapered wedges e1 and following tapered wedges e4, then descend in the tapered wedges e4 promotion tapered wedges e1 stroke middle and that end positions makes progress inconsistent; The slope of little tapered wedges is big in the middle of the upper and lower tapered wedges; Tapered wedges slope small in ends is little; The stroke ratio two ends that last tapered wedges e1 mid portion makes progress are many; Make the worktable panel that is installed on the tapered wedges e1 16 form in the middle of convex curve, this curve epirelief value is just offset the downwarp value of workbench when receiving load, realizes the deflection compensation to workbench.
The epirelief value of the curve that worktable panel 16 forms; Drive screw mandrel e7 rotation through motor e8; Stroke by tapered wedges e4 under the screw mandrel e7 promotion is confirmed; The stroke of following tapered wedges e4 can confirm according to calculation of parameter such as the length of workpiece, thickness, hardness, and the work of the digital control system control motor e8 through control end or stop to realize the automatic compensation of flexibility compensating device.
For the accuracy of better control slide block 2 in the vertical direction displacement, improve bending precision, anti-limited slip block 2 squints when pressurization; Fixed guide 12 on the frame 1, and slide block 2 is installed on the guide rail 12, can move up and down along guide rail 12; Anti-limited slip block 2 departs from when vertically moving, and improves the bender precision.
Like Fig. 5, above-mentioned bender is respectively by motor-driven each lead screw transmission mechanism; Be with nut sleeve 9 on its feed screw nut 8, feed screw nut 8 is fixedly mounted in the nut sleeve 9, and nut sleeve 9 is installed in the bearing; Be installed on the frame through bearing is rotating, nut sleeve 9 is connected with motor 3, by its rotation of motor-driven; Rotate thereby drive feed screw nut 8, be converted into screw mandrel 7 the moving up and down of vertical direction, thus driving sliding block 2 moving up and down in vertical direction.
Like Fig. 5, above bender can pass through belt transmission between motor and each lead screw transmission mechanism; Main driving wheel 4 is installed on motor 3; Nut sleeve 9 tops are installed with driven pulley 6, and driving pulley 4 is connected through driving-belt 5 with driven pulley 6, are rotated by motor 3 drive nuts cover 9.
On motor 3 and nut sleeve 9, can distinguish the mounting teeth wheel disc equally, motor and nut sleeve can be through gear drives, and the drive nut cover rotates, and then driving sliding block moves up and down.
The anti-switch block 10 of screw mandrel is installed between the screw mandrel 7 of each lead screw transmission mechanism and the slide block 2; Screw mandrel 7 is provided with the plane with the anti-switch block 10 position contacting profiles of screw mandrel; Anti-switch block 10 covers of screw mandrel are close to it with the plane of screw mandrel 7, and anti-switch block 10 lower ends of screw mandrel are through being bolted on the slide block 2, and clamping screw mandrel 7; Prevent that screw mandrel 7 from rotating with feed screw nut 8; Screw mandrel 7 bottoms extend into slide block 2 inside, screw at screw mandrel 7 and locking nut 11 are installed screw mandrel 7 and slide block 2 are locked, and prevent that screw mandrel 7 and slide block 2 break away from.
The disclosed bender of the utility model; Before the bending, digital control system control workbench flexibility compensating device is earlier carried out deflection compensation to workbench, in the bending process; Digital control system is according to the deflection compensation value of the needs of slide block; Control a plurality of lead screw transmission mechanism simultaneously driving sliding block move down, quit work after the lead screw transmission mechanism driving sliding block that is arranged on the slide block two ends moves to the precalculated position, the lead screw transmission mechanism of other mid portion driving sliding block that works on continues to move a segment distance; Make slide block 2 downward strain occur, realize deflection compensation slide block 2.
The disclosed bender of the utility model; Can realize that bidirectional deflection compensates automatically, the stressed unanimity of the total length of bending workpieces can both be guaranteed workpiece total length angle and linearity; Bending plate precision is higher; And the lead screw transmission mechanism of the utility model driving sliding block replaces traditional hydraulic-driven through motor-driven, has efficiently, advantages such as high accuracy, energy-conservation, no oil liquid leakage.
Claims (5)
1. bender; Comprise frame, slide block and workbench, it is characterized in that, all be connected with independently lead screw transmission mechanism at the two ends and the middle part of slide block; The feed screw nut of each lead screw transmission mechanism is installed on the frame through bearing; By its rotation of rack-mounted motor-driven, screw mandrel then is threaded onto on the feed screw nut, and the bottom connects slide block; Flexibility compensating device is installed on the workbench, and worktable panel places on the flexibility compensating device.
2. bender according to claim 1; It is characterized in that said flexibility compensating device comprises the grooved base, in the groove of base, slide is installed; Slide one end is connected with the screw mandrel driving mechanism; Can drive slide move left and right in groove, be arranged in order the following tapered wedges of forming by a plurality of little tapered wedges and be fixed on the slide, what cooperate with following tapered wedges is arranged in order the last tapered wedges of forming by a plurality of little tapered wedges and is placed on down on the tapered wedges; Upper and lower tapered wedges inclined-plane is placed in opposite directions, and each little tapered wedges slope of tapered wedges and following tapered wedges reduces from the centre to two ends gradually on the composition; Worktable panel bottom is fixed on the tapered wedges, and the feed screw nut of said lead screw transmission mechanism is fixed on the slide, and its screw mandrel one end passes the feed screw nut, and the other end is connected with motor on being fixed on base.
3. bender according to claim 1 and 2 is characterized in that, on frame, has been arranged side by side guide rail with slide block, and slide block is installed in the guide rail, can move up and down along guide rail.
4. bender according to claim 1 and 2 is characterized in that, the said lead screw transmission mechanism that is connected with slide block is with nut sleeve on its feed screw nut, and nut sleeve is installed on the frame through bearing, by its rotation of motor-driven that is fixed on the frame.
5. bender according to claim 4 is characterized in that, on the motor of said nut sleeve and its rotation of driving belt pulley is installed all, and nut sleeve and motor pass through belt transmission.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220015367 CN202539287U (en) | 2012-01-12 | 2012-01-12 | Bending machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220015367 CN202539287U (en) | 2012-01-12 | 2012-01-12 | Bending machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202539287U true CN202539287U (en) | 2012-11-21 |
Family
ID=47159978
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220015367 Expired - Lifetime CN202539287U (en) | 2012-01-12 | 2012-01-12 | Bending machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202539287U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102601179A (en) * | 2012-01-12 | 2012-07-25 | 广州广船国际股份有限公司 | Bender |
-
2012
- 2012-01-12 CN CN 201220015367 patent/CN202539287U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102601179A (en) * | 2012-01-12 | 2012-07-25 | 广州广船国际股份有限公司 | Bender |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 510382 Guangzhou, Guangdong Province, south of Fangcun Avenue, No. 40 Patentee after: CSSC OFFSHORE & MARINE ENGINEERING (Group) Co.,Ltd. Address before: 510382 Guangzhou, Guangdong Province, south of Fangcun Avenue, No. 40 Patentee before: GUANGZHOU SHIPYARD INTERNATIONAL Co.,Ltd. |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20160115 Address after: 511462 Nansha District, Guangzhou, Pearl River Management District, West Road, No., the first floor of the layer on the ground floor, No. 68 Patentee after: Guangzhou Shipyard International Co.,Ltd. Address before: 510382 Guangzhou, Guangdong Province, south of Fangcun Avenue, No. 40 Patentee before: CSSC OFFSHORE & MARINE ENGINEERING (Group) Co.,Ltd. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20121121 |
|
| CX01 | Expiry of patent term |