CN1099676A - Apparatus for and method of bending and heat exchanger - Google Patents
Apparatus for and method of bending and heat exchanger Download PDFInfo
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- CN1099676A CN1099676A CN 94106905 CN94106905A CN1099676A CN 1099676 A CN1099676 A CN 1099676A CN 94106905 CN94106905 CN 94106905 CN 94106905 A CN94106905 A CN 94106905A CN 1099676 A CN1099676 A CN 1099676A
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Abstract
The invention relates to a processing unit which causes a straight workpiece to be bent into a workpiece with a set angle. The processing unit does not use a bending die, so that only a bending moment is acted on the workpiece when processing, a workpiece pressure plate which leaves from a motor which is used for bending process to an equal distance position is controlled, thus, only the bending moment is acted on the workpiece, and the quantum corresponding to the bending angle moves towards to the direction of leaving the motor which is used for the bending process until the set angle is reached. Moreover, when two workpieces are superposed and bent synchronously, the invention has the function that only the workpiece at the outside is fed towards to the bending process part with a quantum corresponding to the bending angle, and also has the effect that input data is used to change the bending radius.
Description
The present invention relates to straight workpiece bending machining is become the processing method and the device thereof of predetermined angular.The bend processing method and the device thereof that particularly relate to the heat exchanger of built-up air conditioner.
Bend processing method in the past, opening flat 2-71091 patent gazette as the spy puts down in writing, workpiece is transported on the position of regulation, make and want crooked position near the bending die that firmly has predetermined bending radius, clamp the workpiece that is in the bending die both sides then, the hold assembly that makes one or both sides is that the center rotation is moved with the bending die, so workpiece just is squeezed into the angle of bend of regulation along bending die.In particular, the workpiece longitudinal feed laterally making predefined curved position near bending die, is clamped the lower end of workpiece then, and making the part of workpiece more than bending die is that the center rotation is moved with the center of bending die, thereby is shaped along bending die.
In addition, it is contained to open flat 1-258819 patent gazette as the spy, workpiece infeeds under the state that couches, bending die places the top at the position of wanting crooked, clamp and process back workpiece after the both sides of the bending die that is straight portion, drive actuator is got up the hold assembly lifting of a side, and workpiece is shaped along bending die.In this device, the problem of bending die off-centre is arranged, also to manage to reduce the power on the bending die that is applied to the workpiece workpiece to the end face pressurization of workpiece.
Along bending die the workpiece bending machining is become the bending radius of regulation and the above-mentioned prior art of angle, because will be pressed on workpiece on the bending die, in the through hole of thin plate fin, pass some pipes for the sort of, be easy to generate the workpiece of buckling, exist the problem that the thin plate fin collapses or damages by pressure.
In addition, under the situation that two workpiece that pass some pipes in the through hole of thin plate fin are overlaped, if carry out bending simultaneously, the thin plate fin that exists workpiece can interfere with each other and the problem of collapsing or damaging by pressure.
Also have, when changing,, exist the problem that to make expensive bending die again because bending radius is decided by the radius of bending die along with the change bending radius that designs.
First purpose of the present invention is exactly that the power that do not apply except that bending moment of the sweep to workpiece is carried out bending.In view of the above, provide a kind of bend processing method and device that can prevent that the thin plate fin from damaging by pressure or collapsing.
Second purpose of the present invention is when the workpiece of two same shapes is piled up, to provide the bend processing method and the device that simultaneously these two overlapped works are carried out bending machining.The 3rd purpose of the present invention provides in the time will changing bending radius along with the change of workpiece design, as long as the corresponding with it data of control just can change the device of bending radius.
The 4th purpose of the present invention provides the workpiece of the novel structure that can process with above-mentioned bend processing method and device.
In order to reach above-mentioned first purpose, adopted bender: two clamping devices of crooked position both sides straight portion that clamp the workpiece of long size with following parts; Change the bending mechanism of the angle of two clamping devices; And make two clamping devices move a mobile device along normal direction corresponding to the distance of angle of bend from the center of bending mechanism.
In addition, in above-mentioned bender, also be provided with the device of position of control clamping device,, carry out crooked the time so that clamp the clamping device angulation of long dimension workpiece crooked position both sides in change, have only bending moment to act on the workpiece, and do not have the effect of pulling force or pressure.
In order to reach above-mentioned second purpose, adopted device: two clamping devices that clamp the crooked position both sides of two long dimension workpieces that are piled up in the same way with following parts; Change the bending mechanism of the angle of two clamping devices; Make two clamping devices mind-set normal direction from clamping device move a mobile device with the corresponding amount of angle of bend; And the device that the relative position of two workpiece in the outside staggered in setting made at least one above-mentioned clamping device.
In order to reach above-mentioned the 3rd purpose, this device is only to carry out bending machining with the position of control clamping device.At this moment, can decide bending radius by means of the position of the clamping device of controlling holding workpiece and the displacement of mobile device.
Clamping device clamps the straight portion of crooked position both sides of the workpiece of supply.The crooked center of rotation of bending mechanism is the axle on the neutral surface of workpiece, be one the binary line of sweep.All making clamping device for each workpiece is the center rotation with this neutral conductor.Like this, change clamping device mutually between during angulation, make workpiece carry out bending machining.At this moment, though two clamping devices are to leave from the center of bending mechanism and the corresponding distance that equates of the bending radius of workpiece at first, along with the carrying out of bending machining, this distance will be carried out same variation corresponding to angle of bend.In the BENDING PROCESS of workpiece, the distance of this variation is controlled at and clamping device only is in workpiece is applied on the position of bending moment.So, workpiece has only bending moment to act on the workpiece when bending machining, can just carry out bending machining without bending die, can the corresponding data of enough control change bending radius simultaneously.
Further, when two workpiece are piled up bending, owing to exist two neutral surfaces of inboard workpiece and outside workpiece, must outside workpiece corresponding to the straight line portion of angle of bend be squeezed into curved portion (but, at workpiece is under the situation of flat board, straight line portion is a planar section, and curved portion is a curvature portion).Therefore, the ejecting mechanism of outside workpiece and the inboard workpiece corresponding amount of angle of bend with the bending machining part that staggers is partly supplied with to bending machining.Like this, just compensated the length difference of neutral surface between inboard workpiece and the outside workpiece, can not interfere mutually between the workpiece.
Fig. 1 is the basic composition figure that the boxlike peripheral direction combined air conditioner indoor section in the ceiling is gone in product-Tibetan that the present invention is suitable for;
Fig. 2 is the front view of bender of the present invention;
Fig. 3 is the plane of bender of the present invention;
Fig. 4 is the side view of bender of the present invention;
Fig. 5 (a) and (b), (c), (d) are the figure of bending machining workpiece;
Fig. 6 (a) and (b) are figure of the action of explanation bending machining part;
Fig. 7 (a) and (b) are figure of the action of explanation bending machining part;
Fig. 8 (a) and (b) are figure of the action of explanation bending machining part;
Fig. 9 (a) and (b), (c) are the figure of bending machining workpiece;
Figure 10 is the flow chart of expression bending machining sequence of movement;
Figure 11 is the pie graph of the control section of bender;
Figure 12 is the schematic diagram of bending machining;
Figure 13 is the schematic diagram of bending machining;
Figure 14 is the ordinary circumstance of expression when using bender of the present invention;
Figure 15 (a) and (b), (c) are to use another embodiment of bending die;
Figure 16 (a) and (b) are figure of the bending machining action of another embodiment of explanation;
Figure 17 (a) and (b) are figure of the bending machining action of another embodiment of explanation;
Figure 18 is the figure of the bending machining action of another embodiment of explanation;
Figure 19 is the schematic diagram of another embodiment;
Figure 20 (a) and (b), (c), (d), (e) are the figure of bending machining workpiece;
Figure 21 (a) and (b), (c), (d), (e), (f) also are the figure of bending machining workpiece.
Below, utilize Fig. 1 embodiments of the invention to be described to Fig. 9.
Fig. 1 represents the product of manufacturing of the present invention, promptly hides the basic comprising of the boxlike peripheral direction combined air conditioner indoor section in the ceiling.The middle body that has attached the casing of heat-insulating material in the inboard is being fixed fan electromotor, is blown to peripheral direction by fan.Heat exchanger be located at this fan around be square shape, grip by the top board and the drain pan (dish uncovers) of casing.In addition, below indoor section, the ventilative grid of determining wind direction is housed, this face just becomes the face of ceiling, so casing is the form of imbedding in the ceiling.
Fig. 2-Fig. 4 is three views of integral body of the bender of expression one embodiment of the invention.Then represent to be bent in the embodiment of the invention example of the workpiece W of processing among Fig. 5 (a)-(d) at the state of processing front and back.Shown in Fig. 5 (a), workpiece W before the processing inserts the copper pipe W2 of many φ 7 with the spacing of 1.8mm to line up abreast, thickness is in the through hole on the stacked thin fin W1 of 0.115mm, then copper pipe W2 to be carried out expander, and it is fixed on the thin fin.And then one place, place ground carries out bending, after the processing, shown in Fig. 5 (d), bends to a square shape along the length direction of copper pipe W2, and the end is fixed.
Fig. 6-Fig. 8 is that a part of enlarged drawing of bending machining in the bender of one embodiment of the invention, and it has shown a series of actions of bending machining part.
Fig. 2 is the front view of the bender of one embodiment of the invention, and Fig. 3 is a plane, and Fig. 4 is a side view.The formation of this device comprises bending machining part B, lifting portion C, pad insertion portion D, workpiece location supply release part E and the output section F on the stand A.
Workpiece W0(a)-WO(b) be contained on wing plate part B20-B28 as clamping device and whirligig, release part E1-E8, the E15-E16 and localization part E17-E25, and make wing plate part B20-B28 around being that bending machining is carried out in the center rotation with the bending machining central shaft B18-B19 in the bending machining part B14-B19 as the workpiece carrying device.At this moment, utilization as the pressing section B24-B28 of the clamping device among the wing plate part B20-B28 and as the pressing section B5-7 of the clamping device among the workbench B1-7 workpiece WO(a)-WO(b) clamp, when bending machining, it is moved towards the direction of leaving bending machining central shaft B18-B19 corresponding to the amount of the anglec of rotation of wing plate part B20-B28.In addition, also make outside workpiece WO(b as pressing section E1-E8, the E15-E16 of carrying device with amount corresponding to the anglec of rotation of wing plate part B20-B28) move towards the direction of leaving bending machining central shaft B18-B19.Carry out the position of bending machining, decide by the position that makes localization part E17-E25 on release part E1-E8, E15-E16, move to regulation.Workpiece lifting portion C 1-C7 and pad insertion portion D1-D12 move with localization part E17-E25, insert to prevent workpiece WO(a)-the pad D5-D6 that hinders mutually between WO(b).Middle pressing section B8-B13, E9-E14 are according to workpiece WO(a)-WO(b) length and crooked situation holding workpieces WO(a)-WO(b).All these parts all are fixed on the stand part A 1-A2.
On the stand A1 that is supporting by eight horizontal adjusting device A2, drive guide B3 on platform B1 and the guided bearing B2 by workbench, fixing the work stage part B4 that can move to the Y direction.Releasing platform E1 by workpiece on workbench part B4 is fixing and can release part E2 to the workpiece that the Y direction moves.Workpiece is released part E2 and also is fixed on the stand A1 by the guide E4 on the guided bearing E3.Also have, on workbench part B4, by support unit B5 be installed with can be on the workbench that the Z direction moves pressure strip B6, and drive by pneumatic actuator B7.In addition, on workbench part B4, middle pressing plate B10, the B11 that can move up and down is installed, and drives by pneumatic actuator B12, B13 by support unit B8, B9.
On the other hand, release on the part E2, fixing pressure strip E6 under the workbench, and under workbench in the pressure strip E6, useful pneumatic actuator E7 drives, be mounted to the fixed supply platform E8 that can move to directions X by pillar E5 at workpiece.In fixed supply platform E8, then fixing the pneumatic actuator and the lifting plate (not shown) that rise workpiece at above-below direction.In addition, release on the part E2, middle pressing plate E11, the E12 that can move in the Z direction is installed, and drive by pneumatic actuator E13, E14 by support unit E9, E10 at workpiece.Also have, workpiece end workbench E16 is mounted to and can moves in the Y direction by guide E15, and is driven by the ball screw (not shown).On workpiece end workbench E16, by the guide E18 on the vertical panel E17 workpiece end retaining part E19 is installed, and moves at directions X by the driving of pneumatic actuator (not shown).Fixing the pneumatic actuator E20 to Z direction lifting workpiece on workpiece end retaining part E19, it drives workpiece lifting plate E21 and moves along the guide (not shown).In addition, on workpiece end workbench E16,, lifting partial support band C2 is installed on guide C3, and moves along the Z direction by pneumatic actuator C4 driving by support unit C1.On lifting partial support band C2, supporting the lifting portion C 6 that can move along the Y direction by guide C5, and driving by pneumatic actuator C7.Also have, install by support unit D1, can be fixed on the workpiece end workbench E16 by pad coiler drum D3, the D4 that torque motor D2 drives, thickness is that pad D5, the D6 that the stainless sheet steel of 0.2mm is done just is wound on pad coiler drum D3, the D4.In the both sides of pad D5, D6 anchor clamps D7-D10 is installed, by connector D11 jockey D7, D9.Anchor clamps D7, D8 are driven and can be moved in the Y direction by the pneumatic actuator D12 that is fixed on the workpiece release part E2.
Middle pressing plate B10, B11 and middle pressing plate E11, E12 can drive motion forwards, backwards by the pneumatic actuator (not shown), then can keep out of the way to directions X when sending workpiece to.
In addition, on stand A1, be bearing in the wing plate B20 on axle B18, the B19 that passes a B14, B15, B16 and motor bracket B17, can wave by means of AC servo motor B21, on wing plate B20, by wing plate drive platform B22 be installed with can be under the wing plate of Y direction motion pressure strip B23.Under wing plate on the pressure strip B23, being installed with can be at the support unit B24 of directions X motion by the driving of pneumatic actuator (not shown), on support unit B24, pressure strip B25 is bearing on guide B26, the B27 on the wing plate, and drives it by pneumatic actuator B28 and move in the Z direction.In addition, five work mounting s plate B29 are installed on the pressure strip B23 under wing plate, can when workpiece WO bending machining, support.Also have, on stand A1, fixing pneumatic actuator E23 by supporting station E22, then being installed with on pneumatic actuator E24 can be at the location-plate E25 of Y direction motion.
In the front of this device conveyer VO is arranged, accept the preceding workpiece WO of processing here, and from conveyer VO, take out by the automatics getting among the material automatics zone F1 that is installed on the stand A1.
Figure 12, Figure 13 represent the shaping principle according to bending machining mode of the present invention.Represented basic principle among Figure 12, Figure 13 then is illustrated in the application on the equipment.In Figure 12, on workpiece, get the position P of the bending machining part of leaving workpiece
0, P
4The straight line P that is linked to be
0P
4The neutral conductor during as bending machining.The place that the so-called neutral conductor neither stretches and also do not compress in the process of bending machining.Straight line P
0P
1With straight line P
20P
4Be to drive pressing plate E6, the B6 on platform B1 and the wing plate driving platform B22, the clamping range of B23, B25 holding workpiece WO with workbench, and straight line P
1P
20It then is the scope of bending machining.As with curve P
1P
24As the bending machining end of a period neutral conductor constantly, then because the length of the neutral conductor is constant, so
Straight line P
1P
20=curve P
1P
24
Moreover, as with P
21, P
22, P
23As bending machining process mid-point P
20Track because the length of the neutral conductor is still constant, so
Straight line P
1P
20=curve P
1P
21=curve P
1P
22=curve P
1P
23=curve P
1P
24When bending machining was partly applied uniform bending moment, the neutral conductor just formed the part of circular arc.As with this moment fan-shaped be O
nP
1P
2n, then fan-shaped central angle and angle of bend all equal θ
n, and radius is 1
nWhen the bending machining center P
3nWhen being located on the extended line of neutral conductor straight line portion, then
Straight line P
1P
3n=curve P
2nP
3n=m
n
Bending machining at the end the bending machining center and the interval m between the retained part
4=straight line P
1P
S4, consistent with the bending radius ρ of the neutral conductor.Its increment △ m and workbench drive platform B1, and wing plate drive the amount of movement of platform B22, promptly with make clamping device corresponding to the amount of spin that clamping device is rotated with mobile device, leave the amount of movement unanimity of bending machining core, be
△m=m
n-m
0
= (π)/2 ρ( 1/(θn) tan (θn)/2 - 1/2 )…（1）。
When being embodied in above-mentioned formula on the equipment, because being moved, the bending machining center can make mechanism complicated, so as shown in figure 13, can be the bending machining center fixation, and take to make workbench to drive half of length that original position that platform B1 and wing plate drive platform B22 is only left the bending machining part of the bending machining center neutral conductor, make it leave the mode of the amount of △ m from the bending machining center then gradually.
In addition, during crooked at the same time two workpiece WO, because two neutral conductors are arranged, so be necessary workpiece WO(b the outside) in the range of work, send to and inboard workpiece WO(a) between length difference.As establish the h that is spaced apart between the neutral conductor of inside and outside workpiece WO, then feed △ R is
△R=hθ。
In according to Figure 12,13 explanation, consideration be the situation of position consistency of the bending radius of bending machining center and the neutral conductor and regulation, but in the bending machining of reality, situation about staggering usually resemble Figure 14.Therefore, as to establish from the pipe center (the bending radius position of regulation) be c to the distance at bending machining center, and the distance from the bending machining center to the neutral conductor be b (but, b is as the initial point at bending machining center, flexural center direction (promptly the direction more than paper) thus as positive direction), then workbench drives the amount of movement △ m that platform B1 and wing plate drive platform B22 and can represent with following formula:
△m= (π)/2 （ρ-c-b）（ 1/(θn) tan (θn)/2 - 1/2 ）+b tan (θn)/2 ……（2）
Fig. 6-the 8th represents the key diagram of the continuous action of bending machining part separately.
At first, accept workpiece WO, and make the left positioner of workpiece WO with workpiece end retaining part E19 by conveyer.With lifting part inboard workpiece WO(a) after lifting gets up, pad D5, D6 are inserted inboard workpiece WO(a) and outside workpiece WO(b) between scheme (6(a)).Then, workpiece WO is clamped, be the state of Fig. 6 (b) with pressure strip E6 under pressure strip B6 and the workbench on pressure strip B23, the workbench under pressure strip B25, the wing plate on the wing plate.Then, shown in Fig. 7 (a), starting the AC servomotor B21 that uses as the bending machining of tumbler, in the time of the beginning bending machining, start respectively and drive platform B22, B1(mobile device) make wing plate pressure strip B25, B23, and workbench pressure strip B6, E6 leave the bending machining center corresponding to angle of bend.Then, drive as outside workpiece WO(b) the workpiece of carrying device release platform E1, make it close to the bending machining center.Consider rebound effect, bending machining turns back to 90 ° position again to being a bit larger tham after 90 °, is the state shown in Fig. 7 (b).After this, shown in Fig. 8 (a), with lifting part inboard workpiece WO(a) lift dial-out pad D5, D6.Then, shown in Fig. 8 (b), unclamp pressure strip B25 on the wing plate, make it get back to original position, start workpiece again and release part E2, see off after the workpiece WO, be positioned on the next bending machining position.Then, the state from Fig. 6 (a) begins the repetition said process again, and the result just is configured as " mouth " shape workpiece shown in Fig. 5 (d).
Figure 10 is the flow chart of the flow process of expression when using this equipment to carry out bending machining.
In the operation of supplying with workpiece, pneumatic actuator E7, the E20 etc. that release part E by means of the workpiece location drive fixed supply platform E8, lifting plate E21 etc., accept workpiece WO by conveyer VO, refill and be loaded under the workbench pressure strip B23 under the pressure strip E6 and wing plate, and on the lifting plate E21.
In the workpiece positioning process, start pneumatic actuator E7 etc., make workpiece WO abut against the end of workbench pressure strip E6 and lifting plate E21, carry out the location of Y direction.Then, drive by supporting station E22 and be fixed on pneumatic actuator B23 on the stand A1, workpiece WO is abutted against on the workpiece end retaining part E19, carry out the location of directions X.
In workpiece lifting operation, drive pneumatic actuator C4, C7, tangle inboard workpiece WO(a with lifting portion C 6), its lifting is got on.
In the operation of inserting pad, drive pneumatic actuator D12, the pad D5, the D6 that twist on pad coiler drum D3, the D4 are pulled out along the Y direction, be fixed on the preposition.
Workpiece decline operation is opposite with the action of workpiece lifting operation.By means of above action, at inboard workpiece WO(a) and outside workpiece WO(b) between insert two pad D5, D6.Clamp in the operation at workpiece, drive pneumatic actuator B7, B28, B12, B13 etc.,, workpiece WO is clamped with pressure strip B25, middle pressure strip B10, B11 on pressure strip B6, the wing plate on the workbench.
In bending operation, drive AC servo motor B21, wing plate driving platform B22, workbench driving platform B1 and workpiece with 4 controls and release platform E1, workpiece WO is bent to rectangular shape.At this moment, the control wing plate drives platform B22 and workbench drives platform B1, makes them according to the orbiting motion shown in (numeral 1) or (numeral 2).
In unclamping operation 1, drive pneumatic actuator B7, B12, B13, lift pressure strip B6 and middle pressure strip B10, B11 on the workbench, unclamp workpiece WO.
In unclamping operation 2, drive pneumatic actuator B28, lift pressure strip B25 on the wing plate, unclamp workpiece WO.Like this, owing to be divided into two unclamping operation, the pad that just can occur after carrying out under the fixed state of workpiece WO is extracted operation out.
In the workpiece mobile process, by means of the AC servo motor of expression not among the figure, drive workpiece end workbench E16 to the motion of Y direction, the result just delivers to workpiece WO the position of next bending machining.
After carrying out the workpiece location again, the pad that can carry out is as shown in Figure 8 extracted operation out, also can adopt travelling workpiece WO under the state that keeps pad D5, D6 to insert, make it and pad D5, D6 that the method for relative slip take place because of the needs that adapt to rhythm of production.At this moment, as shown in figure 10, return workpiece again and clamp operation.For the first time and for the second time bending machining is all carried out in proper order according to this, bending machining is then after unclamping operation 1 for the third time, insert operation, extract operation, workpiece decline operation out and unclamp after the operation 2 through workpiece lifting operation, pad as workpiece lifting operation, the pad of the negative actuation of workpiece decline operation, carry out workpiece and send operation, the workpiece WO that processes is discharged on the conveyer VO.
Figure 11 has represented the composition of control section.
When starting, send operational order with control panel to timer, timer is after receiving this instruction, 4 servomotor controllers to bending machining send the bending machining instruction, send the workpiece positioning instruction to the servomotor controller that drives workpiece end workbench E16, and send suitable instruction to importing compressed-air actuated valve to each pneumatic actuator by the line system of simplifying.The servomotor controller of having received instruction is imported original motor servo driver for the NC data that bending machining is required with pulse command just what send here from micro computer, controls 4 AC servo motors simultaneously.In addition, valve also carries out switch motion for driving specified pneumatic actuator.And timer receives the signal of each sensor of each drive part that is arranged on device by the line system of simplifying, and carries out the control of sequence of movement as shown in figure 10.
Figure 19 represents the shaping principle of another embodiment of the present invention.Straight line P
0P
40The neutral conductor when being bending machining, straight line P
0P
1With straight line P
20P
40The clamping range of expression holding workpiece WO.The scope of bending machining is straight line P
1P
20, the length of this neutral conductor is constant in the bending machining process.Center of rotation O is set in apart from putting P
1For m=ρ (bending radius) locates motionless.
When angle of bend is θ
1The time, make the straight line P of clamping range
20P
40With center of rotation O serves as that axle rotates θ
1Angle.At this moment, straight line OP
21The m of length during from level
0Become m
1, make curve P
1P
21Become with a P
51Be the center, the length of minor axis is straight line P
51P
1The part of ellipse.Equally, when angle of bend be θ
2The time, straight line OP
22Length become m
2, and curve P
1P
22Become with a P
52Be the center, the length of minor axis is straight line P
52P
1The part of ellipse.So repeat, make ellipse approaching to circle gradually, work as θ
4In the time of=90 °, curve P
1P
24Just become with a P
54Be the center, radius is ρ (=m
4) the part of circle.
In the time will forming the also little bending forming part of radius ratio ρ, it is crooked again that clamping range is moved on the position of more close center of rotation O, and in the time will forming the big bending forming part of radius ratio ρ, then clamping range is moved on the position of center of rotation O and carry out bending machining again.Like this, utilize control bending machining axle and clamping range P
20P
40These two axles of shifting axle, just can carry out desired bending machining.When simultaneously crooked twice, if comprise necessary release outside heat exchanger WO(b) driving shaft, just can be with three crooked two tubes of axles while.
Figure 16-Figure 18 is the key diagram of bending machining part a series of actions of the device of expression another embodiment of adopting the principle in of the present invention 19.
Shown in Figure 16 (a), two workpiece WO(a are housed) and wing plate WO(b) under under pressure strip B23 and the workbench workpiece on the pressure strip E6 release platform and be positioned on the A1, with lifting part (not shown) inboard workpiece WO(a) rise, again the stainless steel gasket D5 that is two thickness t 0.2mm, D6 be inserted into always with workbench on pressure strip B6 front end the bending machining part intersection and fix it.Then, workpiece WO(a) in the inboard lower after, pressure strip B6 on pressure strip B25 and the workbench on the wing plate is lowered, clamp workpiece WO(Figure 16 (b)).After this, shown in Figure 17 (a)-(b), drive the bending machining AC servo motor B21 as the tumbler of bending machining part, making wing plate B20 is the center rotation with center of rotation O, and workpiece WO is carried out bending machining.At this moment, wing plate pressure strip B23, B25 drive platform B22 by wing plate and it are moved with angle of bend θ and curved shape to the direction away from center of rotation O measure accordingly.In addition, the Workpiece supply location is released the workpiece of part E and is released platform E1, make the workpiece WO(b in the outside too) go out and angle of bend θ and inside and outside workpiece WO(a to the thruster of center of rotation O), WO(b) between distance h measure accordingly, make inside and outside workpiece WO(a), WO(b) relatively stagger.
At last, as shown in figure 18, lift on the wing plate pressure strip B6 on the pressure strip B25 and workbench, unclamp workpiece WO, drive workpiece and release platform E1, workpiece WO is passed out to the position that the next one carries out bending machining, after the location, the repeated flex action.Make workpiece WO when location, pad D5, D6 be not fed to workbench on before the boundary of bending machining part of pressure strip B6 front end, but with respect to the workpiece WO position of staggering.After all bending machining are over, extract pad D5, D6 out, from device, take out workpiece WO then.
Figure 15 represents to use an embodiment of the situation of bending die.Clamp the end of workpiece W with clamping device B6, E6, clamp the other end of workpiece again with clamping device B25, B23, and add bending die BD at the position of wanting to carry out bending machining.Then, clamping device B6, E6 maintain static, and make clamping device B25, B23 change the position, so that workpiece W can be shaped according to the shape of bending die BD.At this moment, the position of control clamping device B25, B23, make it be equivalent to the motion of involute curve with respect to bending die BD, thereby make a part that becomes the radius circular arc identical with the radius of bending die BD along the bending machining position of the workpiece W of bending die BD, the other parts of workpiece W then are straight line.Like this, not need workpiece W axially apply useless power, can prevent buckling of workpiece W.
By means of the present invention, owing to just can carry out bending machining,, therefore, has the effect of the workpiece that can process following different shape so workpiece does not have the distortion that produces because of the active force that is subjected to bending die without bending die.So just expanded the free degree of product design.
(1) sweep of thin plate fin is made the workpiece (Fig. 9 (a)) of sharp structure for the well-ventilated who makes crooked position.
(2) the variform workpiece of the shape of sweep and straight portion (Fig. 9 (b), (c)).
(3) medial surface of bending machining part is not the workpiece (Figure 20 (a)) of circular arc.
(4) workpiece (Figure 20 (b)) of electronic unit, distribution wire, securing member, mechanical part, pipeline etc. is installed on bending machining part.With form " mouth " font after again installing component compare, have the effect that when tabular installation can make more convenient operation.
(5) has the workpiece (Figure 20 (c)) that partly stretches out the shape that the bifurcated pipe of cold-producing medium comes from bending machining.The effect that has the flow that to adjust cold-producing medium and muffler etc. is installed.
(6) pipe of bending machining part is not to be connected continuously with planar section in its both sides, but the workpiece that couples together (Figure 20 (d)) with being step.Like this, has the effect that in the flow of regulating cold-producing medium, heater is installed in the bight of product.
(7) the rare workpiece (Figure 20 (e)) of gap ratio straight portion of the fin of bending machining part.Like this, can make on the medial surface of workpiece after bending machining the spacing of fin identical with the bending machining part in straight portion.
(8) spacing of the fin of bending machining part, the ratio straight portion of medial surface is rare, and the close workpiece (Figure 21 (a)) of the ratio straight portion of lateral surface.Like this, on the medial surface and lateral surface of workpiece, the spacing of the fin after the bending machining is identical with the bending machining part in straight portion.
(9) workpiece (Figure 21 (b)) of pin fin is only partly arranged in bending machining.
(10) only in bending machining partly with the workpiece (Figure 21 (c)) of cotton shape metal fin.
(11) only at the width of the bending machining part fin workpiece wide or narrower (Figure 21 (d), (e)) than straight portion.
(12) bending machining partly becomes the workpiece (Figure 21 (f)) of an oval part.
In addition, when adopting the present invention also to have to change bending radius, as long as correspondingly control data is with regard to passable effect along with the change of design.In addition, owing to adopted the mechanism that the workpiece in the outside is released for two overlapping workpiece, so can prevent interfering with each other between the workpiece.The bending simultaneously of two workpiece, can reduce the operation (reducing to an operation) of manufacturing by six operations, also reduced cost simultaneously.
And, also make and lean on tightlyer between two workpiece, particularly can eliminate bending machining and partly locate gap between the workpiece, when being the heat exchanger of air conditioner, can improve rate of heat exchange.
Claims (21)
1, a kind of bender is characterized in that, it has following each several part:
First and second clamping devices at least two positions on the difference holding workpiece;
At least one device in above-mentioned first and second clamping devices is rotated tumbler that moving axis rotates is so that above-mentioned workpiece bending; And
The mobile device that above-mentioned first and second clamping devices are moved towards the normal direction of its turning cylinder.
2, a kind of bender is characterized in that, it has following each several part:
First and second clamping devices at least two positions on the difference holding workpiece;
At least one device in above-mentioned first and second clamping devices is rotated tumbler that moving axis rotates is so that above-mentioned workpiece bending;
The mobile device that above-mentioned first and second clamping devices are moved towards the normal direction of its turning cylinder; And
For the bending machining at above-mentioned workpiece partly applies the control device that uniform bending moment is controlled above-mentioned mobile device.
3, a kind of bender is characterized in that, it has following each several part:
First and second clamping devices at least two positions on the workpiece that is piled up more than two of clamping respectively;
At least one device in above-mentioned first and second clamping devices is rotated tumbler that moving axis rotates is so that above-mentioned workpiece bending;
The mobile device that above-mentioned first and second clamping devices are moved towards the normal direction of its turning cylinder;
In the above-mentioned workpiece that is piled up more than two, the little workpiece of curvature that is positioned at the outside with respect to being positioned at the conveying device that the big workpiece of inboard curvature is carried to the bending machining center; And the control device of controlling above-mentioned various devices.
4, a kind of bender is characterized in that, it has following each several part:
First and second clamping devices at least two positions on the difference holding workpiece;
At least one device in above-mentioned first and second clamping devices is rotated tumbler that moving axis rotates is so that above-mentioned workpiece bending;
The mobile device that above-mentioned first and second clamping devices are moved towards the normal direction of the turning cylinder of above-mentioned first and second clamping devices from the bending machining center of carrying out crooked above-mentioned workpiece by means of above-mentioned first and second clamping devices; And
For the bending machining at above-mentioned workpiece partly applies uniform bending moment, and control is removed above-mentioned clamping device by above-mentioned mobile device from the bending machining center of above-mentioned workpiece amount △, make it and the rotational angle θ of the above-mentioned clamping device that rotates by means of above-mentioned tumbler, and keep the control device of following formula relation between the bending machining radius ρ:
△=π/2·ρ·（1/θ·tan（θ/2）-1/2）。
5, a kind of bender is characterized in that, it has following each several part:
First and second clamping devices at least two positions on the difference holding workpiece;
At least one device in above-mentioned first and second clamping devices is rotated tumbler that moving axis rotates is so that above-mentioned workpiece bending;
Be arranged on the inboard bending die of bending machining part that is clamped in the workpiece in the above-mentioned clamping device;
The mobile device that at least one device is moved according to the shape of involute curve with respect to above-mentioned bending die; And
Control the control device of above-mentioned each device.
6, bender as claimed in claim 3 is characterized in that, is provided with the thin plate pad of insertion between workpiece in being clamped in above-mentioned clamping device and the workpiece.
7, bender as claimed in claim 2 is characterized in that, above-mentioned control device is controlled above-mentioned mobile device makes it move continuously with the amount corresponding to the rotational angle of above-mentioned clamping device.
8, a kind of bend processing method is characterized in that, it has following step:
Clamp at least two positions on the workpiece by first and second clamping devices;
At least one device moving axis that rotates is rotated, so that above-mentioned workpiece bending;
For the bending machining at above-mentioned workpiece partly applies uniform bending moment, above-mentioned first and second clamping devices are moved along the normal direction of its turning cylinder, come workpiece is carried out bending machining.
9, a kind of bend processing method is characterized in that, it has following step:
Clamp at least two positions of the workpiece that is piled up more than two respectively with first and second clamping devices;
At least one device moving axis that rotates is rotated, crooked above-mentioned workpiece, and;
Above-mentioned first and second clamping devices are moved to the normal direction of its turning cylinder, and;
In the above-mentioned workpiece that is piled up more than two, the little workpiece of the curvature that is positioned at the outside workpiece big with respect to the curvature of inboard carried to the bending machining center, workpiece is carried out bending machining.
10, a kind of bend processing method is characterized in that, clamps at least two positions on the workpiece respectively with first and second clamping devices; At least one device moving axis that rotates is rotated, so that above-mentioned workpiece bending; And the motion of control retained part makes in following formula, and the bending machining of workpiece is value oval of formation and angle of bend and the corresponding a of shaping form, b, α, β or a part of justifying partly.((x - α)
2)/(a
2) + (( y- β)
2)/(b
2) = 1
11, a kind of heat exchanger, it has many thin plate fins, and many pipes that pass through the through hole of above-mentioned thin plate fin,
Above-mentioned heat exchanger is piled up more than two, and at least a position process bending machining, on this bending machining part, the angle of above-mentioned thin plate fin and pipe is impartial, and the radius of curvature of outside heat exchanger is than the amount of the big thickness of slab of inboard heat exchanger.
12, heat exchanger as claimed in claim 11 is characterized in that,
Only the straight line portion beyond the bending machining part forms the thin plate fin.
13, heat exchanger as claimed in claim 11 is characterized in that,
The end surface shape of the medial surface of bending machining part or the fin of lateral surface is concave-convex.
14, heat exchanger as claimed in claim 11 is characterized in that,
On the bending machining part, mechanical part, electrical and electronic parts, electric wire, pipeline, securing member etc. are housed.
15, heat exchanger as claimed in claim 11 is characterized in that,
Go out pipe from bending machining part bifurcated.
16, heat exchanger as claimed in claim 11 is characterized in that,
In the bending machining part, pipe has the step of bending.
17, heat exchanger as claimed in claim 11 is characterized in that,
It is big that the spacing that bending machining part fin stacks is made the spacing that stacks than straight portion fin.
18, heat exchanger as claimed in claim 11 is characterized in that,
The spacing that bending machining part fin stacks is made the spacing difference that stacks than straight portion fin, dredge at the inboard fin of bending forming part rare, and close in the outside.
19, heat exchanger as claimed in claim 11 is characterized in that,
On the pipe of bending machining part, pin fin or cotton shape metal fin are installed.
20, heat exchanger as claimed in claim 11 is characterized in that,
The fin width of bending machining part is different with the fin width of straight portion.
21, heat exchanger as claimed in claim 11 is characterized in that,
Bending machining partly forms an oval part.
Applications Claiming Priority (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP131682/93 | 1993-06-02 | ||
| JP13168293 | 1993-06-02 | ||
| JP131682/1993 | 1993-06-02 | ||
| JP055413/94 | 1994-03-25 | ||
| JP055413/1994 | 1994-03-25 | ||
| JP05541394A JP3517935B2 (en) | 1993-06-02 | 1994-03-25 | Bending equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1099676A true CN1099676A (en) | 1995-03-08 |
| CN1058427C CN1058427C (en) | 2000-11-15 |
Family
ID=26396303
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN94106905A Expired - Fee Related CN1058427C (en) | 1993-06-02 | 1994-06-02 | Apparatus for and method of bending and heat exchanger |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JP3517935B2 (en) |
| KR (1) | KR0144111B1 (en) |
| CN (1) | CN1058427C (en) |
| TW (1) | TW256795B (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101862773A (en) * | 2010-04-30 | 2010-10-20 | 燕山大学 | Method for processing mouldless bent arc |
| CN101890446A (en) * | 2010-07-28 | 2010-11-24 | 三花丹佛斯（杭州）微通道换热器有限公司 | Heat exchanger bending method and heat exchanger bending tool |
| CN102151728A (en) * | 2011-05-09 | 2011-08-17 | 江苏同力机械有限公司 | Cold bending forming process for camber beam of car body of passenger car |
| CN102389915A (en) * | 2011-09-26 | 2012-03-28 | 江苏奔宇车身制造有限公司 | Bend forming method for symmetrical framework section bars of cab of large-sized construction machine |
| CN103025451A (en) * | 2010-07-30 | 2013-04-03 | 大金工业株式会社 | Bending work method for heat exchanger and heat exchanger |
| CN107405664A (en) * | 2015-06-12 | 2017-11-28 | 三樱工业株式会社 | The bending method and bending apparatus of pipe |
| CN108543845A (en) * | 2018-06-12 | 2018-09-18 | 珠海格力智能装备有限公司 | Bender |
| CN108580615A (en) * | 2018-06-12 | 2018-09-28 | 珠海格力智能装备有限公司 | Plug mechanism and the bender with it |
| CN110293156A (en) * | 2019-04-22 | 2019-10-01 | 南京联众工程技术有限公司 | For clamping the fixture of corrugated steel and using the method for its bending corrugated steel |
| CN111036737A (en) * | 2019-11-26 | 2020-04-21 | 歌尔股份有限公司 | Bending and pressing device and bending and pressing method |
| CN113020354A (en) * | 2021-03-02 | 2021-06-25 | 南京航空航天大学 | Pipe fitting forming processing method and forming device for pre-welded branch pipe |
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| JP2008261611A (en) * | 2007-04-16 | 2008-10-30 | Mitsubishi Electric Corp | Outdoor unit for air conditioner, and bending device and method for fin and tube type heat exchanger |
| CN102699155B (en) * | 2012-06-05 | 2013-11-20 | 上海交通大学 | Bending processing method of heat exchanger |
| JP6333195B2 (en) * | 2015-02-23 | 2018-05-30 | 三菱電機株式会社 | Heat exchanger bending equipment |
| US10966581B2 (en) | 2015-10-22 | 2021-04-06 | Sharkninja Operating Llc | Vacuum cleaning device with foldable wand to provide storage configuration |
| CN106270268A (en) * | 2016-08-26 | 2017-01-04 | 奥美森智能装备股份有限公司 | Bender and bending method |
| KR102233336B1 (en) * | 2018-08-14 | 2021-03-29 | 에이피시스템 주식회사 | Bending apparatus and bending method |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3443296A (en) * | 1967-05-29 | 1969-05-13 | Trane Co | Method for constructing a fin-and-tube heat exchanger having a bend formed therein |
| US4727737A (en) * | 1986-12-31 | 1988-03-01 | Heil-Quaker Home Systems, Inc. | Method and apparatus for bending a heat exchanger coil |
-
1994
- 1994-03-25 JP JP05541394A patent/JP3517935B2/en not_active Expired - Fee Related
- 1994-05-12 TW TW83104299A patent/TW256795B/en active
- 1994-05-20 KR KR1019940011053A patent/KR0144111B1/en not_active IP Right Cessation
- 1994-06-02 CN CN94106905A patent/CN1058427C/en not_active Expired - Fee Related
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101862773A (en) * | 2010-04-30 | 2010-10-20 | 燕山大学 | Method for processing mouldless bent arc |
| CN101890446A (en) * | 2010-07-28 | 2010-11-24 | 三花丹佛斯（杭州）微通道换热器有限公司 | Heat exchanger bending method and heat exchanger bending tool |
| CN103025451A (en) * | 2010-07-30 | 2013-04-03 | 大金工业株式会社 | Bending work method for heat exchanger and heat exchanger |
| CN102151728A (en) * | 2011-05-09 | 2011-08-17 | 江苏同力机械有限公司 | Cold bending forming process for camber beam of car body of passenger car |
| CN102151728B (en) * | 2011-05-09 | 2012-07-25 | 江苏同力机械有限公司 | Cold bending forming process for camber beam of car body of passenger car |
| CN102389915A (en) * | 2011-09-26 | 2012-03-28 | 江苏奔宇车身制造有限公司 | Bend forming method for symmetrical framework section bars of cab of large-sized construction machine |
| CN107405664A (en) * | 2015-06-12 | 2017-11-28 | 三樱工业株式会社 | The bending method and bending apparatus of pipe |
| CN108543845A (en) * | 2018-06-12 | 2018-09-18 | 珠海格力智能装备有限公司 | Bender |
| CN108580615A (en) * | 2018-06-12 | 2018-09-28 | 珠海格力智能装备有限公司 | Plug mechanism and the bender with it |
| CN108543845B (en) * | 2018-06-12 | 2024-06-18 | 珠海格力智能装备有限公司 | Bending Machine |
| CN110293156A (en) * | 2019-04-22 | 2019-10-01 | 南京联众工程技术有限公司 | For clamping the fixture of corrugated steel and using the method for its bending corrugated steel |
| CN111036737A (en) * | 2019-11-26 | 2020-04-21 | 歌尔股份有限公司 | Bending and pressing device and bending and pressing method |
| CN111036737B (en) * | 2019-11-26 | 2021-08-27 | 歌尔股份有限公司 | Bending and pressing device and bending and pressing method |
| CN113020354A (en) * | 2021-03-02 | 2021-06-25 | 南京航空航天大学 | Pipe fitting forming processing method and forming device for pre-welded branch pipe |
Also Published As
| Publication number | Publication date |
|---|---|
| TW256795B (en) | 1995-09-11 |
| JP3517935B2 (en) | 2004-04-12 |
| JPH0747427A (en) | 1995-02-21 |
| CN1058427C (en) | 2000-11-15 |
| KR0144111B1 (en) | 1998-08-17 |
| KR950000270A (en) | 1995-01-03 |
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