Summary of the invention
The object of the present invention is to provide a kind of bending equipments, by improving to its structure, to improve to evaporator etc.
The yields of workpiece progress bending processing.
To achieve the goals above, it includes rack and rack-mounted that the present invention, which provides the improved bending equipment of structure,
Clamping unit, core rod unit, plectrum unit, bending unit and plug unit;Clamping unit is used for clamping workpiece;Core rod unit packet
Insertion workpiece bending position is included adjacent to the side of its bending interior angle with the plug of auxiliary work-piece bending process;Plectrum unit for pair
Workpiece carries out plectrum processing;It plugs unit to be used for before plectrum unit carries out plectrum processing to workpiece, is bent over portion in workpiece
Insertion interval limits piece between part, and extracts interval after plectrum processing and the processing of bending at least once in workpiece and limit piece;Bending
Unit is used for workpiece bending to predetermined bending angle.
By added on bending equipment plug unit to be improved to its structure, thus plectrum unit to workpiece into
Before the processing of row plectrum, limit piece at the insertion interval between component that is bent over of workpiece, and workpiece through plectrum handle at least once
Interval, which is extracted, after bending processing limits piece;Using interval limit piece force workpiece it is adjacent be bent over portion in bending process between
Away from preset space length or more is maintained at, there is the fitting problem for being bent over component after being effectively prevented bending, effectively improve workpiece
The yields of bending processing.
Specific scheme is that plug unit includes that floating ground is equipped with the mounting base that interval limits piece, and drive installation seat is opposite
Rack is limited in the plug driving mechanism for vertically laterally doing two-dimensional surface movement with insertion, and by the interval for extracting rear-inclined arrangement
Piece is reset to the resetting-mechanism along insertion lateral arrangement;It is vertical to be parallel to the axially arrangement of the plug in core rod unit for edge.
During the work time, by plug driving mechanism interval restriction piece is moved to insertion position to be inserted into workpiece quilt
Between bending part, in workpiece after plectrum processing and bending processing, positioned at the part interval that is bent in component limit sector-meeting with
Be bent over the inclination in portion and be in tilted layout, and floating mount be conducive to interval limit piece it is whole with the inclination arrangement process and
Change, thus be conducive to it is subsequent using two-dimensional plug driving mechanism carry out extract interval restriction piece;Then pass through resetting-mechanism
Reset and be that next inserted sheet process is prepared, to improve the efficiency of bending process.
It includes vertically arranged pull rod that one more specific scheme, which is resetting-mechanism, is installed in rotation in mounting base
Shaft, one end and pull rod be hinged and connecting rod that the other end is fixedly connected with shaft, and for lifting pull rod in reseting procedure
With reseting interval limits piece and carries out the return actuator of lifting constraint to pull rod in bending process release;Interval limits consolidating for piece
Fixed end is fixedly connected with the other end of shaft.It is disposably resetted convenient for limiting piece to all intervals by pull rod.
Specific scheme is that interval limits piece as U-shaped structure again, and return actuator is cylinder;Two yoke ends of U-shaped structure
For its fixing end, concave part is constituted to escape groove of plectrum wheel during plectrum in plectrum unit, and bending part is equipped with to core
Escape groove of the plug in bending process in stick unit.Interval restriction can be effectively realized by selecting the interval of the structure to limit piece
Process, reduction interference effect is caused to the course of work of other units;It is return actuator using cylinder, it can be in bending process
By other releases in cylinder body without causing to constrain in the intracorporal movement of cylinder to piston, in order to realize bending process release to drawing
Bar carries out lifting constraint.
Another more specific scheme is that plug unit further includes leading to what the insertion process that interval limits piece was oriented to
To mechanism, which includes fishback, the transverse actuator for pushing fishback transversely to move back and forth and combs for driving
Tooth plate vertically moves and carries out driving restraint so that it is vertically quick condition to fishback in bending process release
Vertical actuator;Fishback, which is equipped with, limits the comb teeth slot that piece passes through for interval.With improve interval limit piece insertion efficiency with
Accuracy rate especially selects softer material when interval limits piece.
Another specific scheme be bending equipment further include for will after bending is handled the bending place of workpiece protrusion
Force down the pressure protrusion element of processing, pressure protrusion element includes the briquetting and driving pressure by the plug side in core rod unit
The actuator that block vertically moves back and forth handles bending protrusion to predetermined altitude.
One preferred scheme is that clamping unit includes laterally floating mounting rack and is mounted on laterally floating mounting rack
Upper main clamping device, upper auxiliary clamping device, lower main clamping device, lower auxiliary clamping device, backboard unit and base plate unit, it is horizontal
It can be along the bending arm being laterally slidably mounted in bending unit that floats to floating mount frame;Upper auxiliary clamping device is relatively horizontal
It can be vertically slided to floating mount frame to match the size of pre- clamping workpiece vertically;Backboard unit includes backboard, backboard
Lower end be equipped with for the pre- clamping workpiece of holding supporting plate;Base plate unit includes that backing plate and driving backing plate are laterally and vertical along clamping
Mobile driver;Upper main clamping device and lower main clamping device are used to clamp the both ends of backing plate and are located at backboard and pad to clamp
Workpiece between plate.By adjusting the position vertically of upper auxiliary clamping device, the pre- clamping to workpiece is realized, and pass through back
The workpiece of plate and backing plate being matched for clamping tightly between the two, since the size of backboard and backing plate is vertically made bigger, from
And the workpiece of different height size can be clamped, various sizes of work can be matched without replacing to clamping device
Part.
Preferred scheme is that clamping unit further includes the vertical slide plate that relatively transverse floating mount frame can be slided vertically
And the actuator that the vertical slide plate of driving vertically slides, backboard can be laterally slidably mounted on vertical by guiding mechanism along clamping
On slide plate, backboard unit includes the driver for driving the relatively vertical slide plate of backboard to slide laterally along clamping;Clamping device packet
Include clamping actuator, transfer lever and clamping jaw;The force side of transfer lever and the mover of clamping actuator are hinged, clamping jaw and transmitting
The force side of lever, which is fixedly connected, to be constituted for being fastened on the hook-like configuration by clamping piece on the side of bending arm;Upper main folder
The clamping jaw for holding mechanism is equipped with the clamping pilot hole being inserted into from top to bottom for backing plate.By the cooperation of lever and hook-like configuration, only
Need an actuator with regard to the actuating of the achievable clamping to workpiece and release movement;And it is slided based on backboard, clamping device with vertical
The movement of plate cooperates and realizes the clamping or release to workpiece, effectively completes various movements.
Another preferred scheme be further include feeding unit material;Feeding unit material includes the elevating mechanism being fixed on the rack,
By cross slide way slide block mechanism can along insertion be laterally slidably mounted on elevating mechanism lift side on feeding crane, and
For assisting overturning from flat position to the feeding rollover stand of vertical position to bending workpieces;Feeding rollover stand is adjacent to core rod unit
One end be hinged on feeding crane by hinged shaft.Convenient for carrying out feeding to large-scale workpiece, bending efficiency is improved.
Another preferred scheme is that the control unit of bending equipment includes processor and memory, and memory is stored with meter
Calculation machine program, is able to achieve following step when computer program is executed by processor:
Pre-bend step, controls bending unit for workpiece bending first angle;
Inflection step, control bending unit is by the workpiece inflection second angle through pre-bends process, and second angle is less than the
One angle;
Paddle step, control plug unit extract interval from the workpiece handled through inflection and limit piece;
Bending step again controls bending unit for the workpiece bending third angle handled through paddle to preset shape.
Leave bending track by pre-bending step to be bent in portion in workpiece, by inflection step in order to extract between
Every limiting piece, it is particularly suitable for carrying out bending processing to the biggish workpiece of bending angle.
Embodiment
Referring to Fig. 1, bending equipment 1 of the present invention includes rack 10, control unit and the bending unit being mounted in rack 10
2, clamping unit 3, centering unit 5, core rod unit 11, plectrum unit 6, feeding unit material 7, plug unit 8 and pressure protrusion element 9.
Control unit is not shown in the accompanying drawings comprising processor, memory and the control being mounted in ground or rack
Touch screen, processor receive the instruction of operator's input by control touch screen, according to corresponding in the instruction execution memory
Computer program and control each unit in bending equipment 1 match and to workpiece execute centering, inserted sheet, plectrum, paddle and
The operation such as bending.
Referring to Fig. 1 to Fig. 4, bending unit 2 includes bending servo motor 20, bending screw rod 21, driven nut, bending slide unit
22, the curved linear guide 231 of left folding, the curved linear guide 232 of right folding, left Bending Slide Block 241, right Bending Slide Block, left folding curved rod 25,
Right folding curved rod 26, left folding curved boom 27, right folding curved boom 28 and bending shaft 29.Two bending linear guides are arranged along the horizontal.
Left folding curved boom 27 and 28 upper and lower ends of right folding curved boom are installed in rotation in rack 10 by bending shaft 29;It is left
One end of bending connecting rod 25 and bending slide unit 22 are hinged, and the other end and left folding curved boom 27 are hinged;One end of right folding curved rod 26 with
Bending slide unit 22 is hinged, and the other end and left folding curved boom 28 are hinged;Left folding curved rod 25 intersects with the extension line of right folding curved rod 26
Intersection point is formed in the V-structure of 22 side of bending slide unit, with the increase of V-structure angle, is applied to dividing on bending arm
Power is also bigger.
It is mounted in rack 10 to the curved linear guide 231 of left folding arrangement parallel with the curved linear guide 232 of right folding, bending is sliding
Platform 22 is slidably mounted in the two bendings linear guide by left Bending Slide Block 241 with right Bending Slide Block, can be transversely
It is slidably mounted in rack 10.Bending servo motor 20 drives bending screw rod 21 to rotate by synchronous belt, to push therewith
The driven nut for engaging and being installed on 22 lower surface of bending slide unit, and then bending slide unit 22 is pushed to slide along linear guide, and
It pulls/pushs on two bending arms by bending connecting rod and is realized around the rotation of bending shaft 29 and be unfolded or convert into, in the present embodiment, two
A bending arm can realize the bending of 0 degree to 165 degree bending angle.
Referring to Fig. 1 to Fig. 7, clamping unit 3 include upper main clamping device 302,303, lower main clamping device 306,307, on
Assist clamping device 301,304, lower auxiliary clamping device 305,308, backboard unit and base plate unit 4;Wherein, upper main clamping machine
Structure 302 and upper auxiliary clamping device 301 are mounted on the upper end of left bent over arms 27 by left installing mechanism, lower main clamping device
306 are mounted on the lower end of left bent over arms 27 with lower auxiliary clamping device 305 by left installing mechanism;Upper main clamping device
303 are mounted on the upper end of right bent over arms 28 with upper auxiliary clamping device 304 by right installing mechanism, lower main clamping device
307 are mounted on the lower end of right bent over arms 28 with lower auxiliary clamping device 308 by right installing mechanism, by clamping device,
Backboard unit and the interoperation of base plate unit are solid with the Workpiece structure clamping that micro-channel heat exchanger is located to its bending part two sides
It is scheduled in corresponding bent over arms.
As shown in Figure 1, base plate unit 4 includes right base plate unit 41 and left base plate unit 42, right base plate unit 41 passes through the right side
Peace mechanism is mounted on right folding curved boom 28 as shown in Figure 4, and left base plate unit 42 is mounted on as shown in Figure 4 by left installing mechanism
Left folding curved boom 27 on, with exhibition resultant motion of the two bending arms in bending process and around as shown in Figure 4 29 turns of bending shaft
It is dynamic.
The structure of left and right base plate unit is illustrated by taking right base plate unit 41 as an example below.Referring to Fig. 9, right backing plate list
Member 41 includes backing plate 43, horizontal pushing mechanism and elevating mechanism.Horizontal pushing mechanism includes installing entire right base plate unit to You An mechanism
On mounting base 44, it is horizontal push away actuator, straight-line guide rail slide block mechanism and cross slide 46, straight-line guide rail slide block mechanism includes fixing
It each three linear guides 451 being arranged along the horizontal on 46 two sides of cross slide and is fixed in mounting base 44 and is led with straight line
The sliding block 452 that rail 451 matches, the horizontal stator for pushing away actuator are fixedly connected with mounting base 44, and mover and cross slide 46 are fixed
Connection, so that cross slide 46 be pushed transversely to move back and forth with respect to mounting base 44;The horizontal actuator that pushes away can be selected from linear motor, gas
Cylinder, oil cylinder or rotating electric machine and leading screw and nut mechanism cooperation constitute straight-line displacement output device.Elevating mechanism includes lift servo
Motor 47, the driving gear being sequentially connected by retarder with lift servo motor 47 and with the driving gear cooperate and be fixed on
Lifter rack 48 on backing plate 43;It is sliding that vertically arranged linear guide is disposed between the two sides and cross slide 46 of backing plate 43
Block mechanism, to carry out limition orientation to the sliding of the relatively transverse slide 46 of backing plate 43 vertically.It is formed with inside backing plate 43
Vertically arranged mounting groove 430, for installing lifter rack 48 and accommodating driving gear.
The structure of installing mechanism is illustrated by taking right installing mechanism as an example to Fig. 8 referring to fig. 4.Right installing mechanism includes
Laterally floating mounting rack 31 and vertical slide plate 32, backboard unit includes backboard 39;Laterally floating mounting rack 31 passes through laterally three
Straight-line guide rail slide block mechanism 321,322,323 can be mounted on right folding curved boom 28 with sliding along the transverse direction, i.e., with respect to right folding curved boom
28 can slide laterally along floating, to make each component being mounted on laterally floating mounting rack 31 that can float in bending process
There is undesirable deformation, laterally floating mounting rack 31 to reduce workpiece in the left and right floating with the progress of bending process in transverse direction
The vertical guide groove item 311,312 being arranged parallel including two and the vertical straight being installed on vertical 312 lateral surface of guide groove item
Line guide rail 313;The medial surface of vertical guide groove item 311,312 is formed with the T-type guide groove arranged along its length, vertical slide plate 32
Two side ends be formed with the T-type lateral edge portion matched with the T-type guide groove, as shown in Figure 7, the shape on vertical guide groove item 311
At there is T-type guide groove 3111, the relative motion between vertical slide plate 32 and laterally floating mounting rack 31 is constrained and is oriented to;Edge
The straight-line guide rail slide block mechanism 322 of lateral arrangement can vertically be slidably mounted on folding by straight-line guide rail slide block mechanism 331
On curved boom 28;The rear plate face of vertical slide plate 32 is fixedly connected with the sliding block of straight-line guide rail slide block mechanism 322, so as to by vertical
Driving mechanism drives it vertically to reciprocatingly slide with respect to bending arm 28, the vertical driving mechanism include servo motor and with servo electricity
The leading screw and nut mechanism 332 of machine transmission connection.
Upper main clamping device 303, lower main clamping device 307 and lower auxiliary clamping device 308 are fixed horizontal by its mounting base
To on floating mount frame 31;Upper auxiliary clamping device 304 can vertically slidingly back and forth by straight-line guide rail slide block mechanism 331
It is mounted on laterally floating mounting rack 31, and its relatively transverse movement of floating mount frame 31 is hung by cucurbit 34, and pass through hand
Dynamic formula fixture 341 locks the relative position between upper auxiliary clamping device 304 and laterally floating mounting rack 31.
For assisting clamping device 308 below, the structure of eight clamping devices is illustrated.Assist clamping device 308
Including mounting base 384, clamping jaw 380, transfer lever 381 and clamping actuator 382;The fulcrum of transfer lever 381 passes through hinged shaft 383
It is hinged in mounting base 384;The stator of clamping actuator 382 is hinged in mounting base 384 by hinged shaft 386, and mover passes through hinge
Axis 385 and the force side of transfer lever 381 are hinged;Clamping jaw 380 is fixedly connected with the force side of transfer lever 381 and constitutes fastening
L-type structure on the side end of micro-channel heat exchanger bottom right.Lower auxiliary support mechanism 38 is mounted on transverse direction by its mounting base 384
On floating mount frame 31.
Transfer lever 381 is boosting lever;Clamping actuator 382 can be selected from cylinder, oil cylinder, the displacement of linear motor isoline
Output device, the present embodiment are selected as cylinder, during the work time, are pushed by the stretching motion of cylinder piston rod opposing cylinder
Transfer lever 381 is rotated around hinged shaft 383, to control the clamping of clamping jaw 380 or release workpiece.In addition, as shown in figure 8, lower main folder is held
Mechanism 307 includes clamping driving cylinder 3071, and upper main clamping device 303 includes clamping driving cylinder 3031.
Right base plate unit 41 by its mounting base 44 by be set to vertical guide groove item 311,312 upper ends installation 3110,
3120 and be fixed on laterally floating mounting rack 31, by lift servo motor 47 drive backing plate 43 vertically move so that under it
The clamping pilot hole 3031 on the clamping jaw for being set to upper main clamping device 303 is held, until entering and lower main 307 phase of clamping device
At the position of clamping.
Be equipped with three pieces of nylon sheets vertically arranged 392 on backboard 39, and its lower end edge horizontal extension be equipped with supporting plate
391, backboard 39 is mounted on vertical slide plate 32 by being oriented to along the guiding mechanism for clamping lateral arrangement, i.e. clamping is laterally vertical
It is arranged in the direction of the plate face of backboard 39, backing plate 43, and its relatively vertical 32 edge of slide plate is driven by straight-line displacement output device
Clamping transverse shifting is clamped to control its clamping spacing between backing plate with the workpiece to different-thickness.In this reality
It applies in example, guiding mechanism includes four optical axises 351 for being parallel to each other and being fixedly connected with backboard 39, by optical axis 351 along sliding
The sliding of bearing 3510 and realize the lateral guide and limit of clamping;Straight-line displacement output device includes driving cylinder 352, T-type company
Fitting 353, wedge block 354 and wedge block 355, wherein driving cylinder 352 is fixedly connected with laterally floating mounting rack 31,
Cylinder rod is fixedly connected to drive its sliding laterally along the plate face for being parallel to backboard 39 with T-type connector 353, i.e. T-type connects
Part 353 can be laterally slidably mounted on laterally floating mounting rack 31 by guiding rail mechanism along floating;In T-type connector
Wedge-shaped bootstrap block 3531,3532, the opposite backboard 31 of two wedge-shaped bootstrap blocks 3531,3532 are fixed in 353 two transverse ends
The inclined direction of plate face and inclination angle are all the same, and wedge block 354,355 is respectively formed oblique with wedge-shaped bootstrap block 3531,3532
The lozenges that face matches, to push two wedge block edges during T-type connector 353 slides laterally along floating
Clamping slides laterally, to push backboard 39 to slide laterally along clamping, with the clamping workpiece together with backing plate.
Referring to Fig. 1 and Figure 10, in rack 10, the two sides positioned at clamping unit 3 and base plate unit 4 are equipped with centering unit
5, for pushing the bending part to bending workpieces to be moved at the medium position of bending unit 2, that is, it is located at by 111 side of plug
Place.Centering unit 5 includes that 50, two centering drive link 511(of centering actuator are connected in the figure on right centering unit 502
Connecting rod be not shown), left centering unit 501 and right centering unit 502.
Centering actuator 50 is straight-line displacement output device, is selected as cylinder in the present embodiment.Below to be mounted on rack
The structure of left and right centering unit is illustrated for left centering unit 501 on 10 left sides, the structure of right centering unit 502
With the substantially symmetric arrangement of structure of left centering unit 501, details are not described herein.
Referring to Figure 10 and Figure 11, left centering unit 501 includes cross slide 513, first cross slide way slide block mechanism, centering
Adjustment frame 53, left locating piece 54, the second cross slide way slide block mechanism and transversal driving mechanism, two pieces of left locating pieces 54 are arranged in
Centering adjusts on the right side of frame 53 to position to workpiece leftward position.Second guide rail slide block mechanism includes being fixed on machine
On frame 10 and what is be arranged along the horizontal linear guide 551,552 and the sliding block that is fixed on cross slide 513, to make cross slide
513 opposite racks 10 can transversely reciprocatingly slide;The lower end of cross slide 513 passes through hinged shaft 512 and centering drive link 511
One end is hinged, and the mover of the other end and centering driver 50 of centering drive link 511 is hinged, drives working principle and bending
Identical, i.e., the V-structure being made up of two centering drive links 511 of unit 2, to push cross slide 513 straight along second
Line guide rail slide block mechanism horizontally reciprocatingly slides with respect to rack 10.The quantity of first cross slide way slide block mechanism is two, point
Not by the linear guide 526 for being fixed on centering adjustment 53 top of frame and sliding block 523,524 structures being fixed on cross slide 513
At, and the linear guide 525 being fixed on centering adjustment 53 lower part of frame and the sliding block 521 being fixed on cross slide 513,
522 are constituted;Transversal driving mechanism includes centering servo motor 56, screw rod 57 and the driven nut engaged with screw rod 57, screw rod 57
It is installed in rotation on cross slide 513, driven nut is fixed on centering adjustment frame 53, to be driven by servo motor
Dynamic screw rod 57 rotates and drives the centering adjustment relatively transverse slide plate 513 of frame 53 mobile.
Referring to Fig. 1, Fig. 2, Fig. 3 and Figure 10, core rod unit 11 includes the mandrel holder 110 that is mounted in rack 10 and detachable
It installs to the bending plug 111 in plug mounting base 110 on ground.Fine position machine is equipped between plug mounting base 110 and rack 10
Structure 112, sets that there are four waist round hole 1101 in plug mounting base 110, by unscrewing the fixing bolt across waist round hole 1101, with logical
It crosses fine position mechanism 112 and adjusts plug mounting base 110 along the position of 1101 long axis direction of waist round hole.
Referring to Fig. 1 and Figure 12, feeding unit material 7 includes elevating mechanism, can be slid along the transverse direction by cross slide way slide block mechanism
Ground is mounted on the feeding crane 70 on the lift side of elevating mechanism, and for assist to bending workpieces from flat position overturn to
The feeding rollover stand 711 of upright position.
Elevating mechanism includes four guiding mechanisms 72 and two lift actuators 73, and lift actuator 73 is that straight-line displacement is defeated
Device out;Guiding mechanism 72 is installed by connection framework 701 to rack 10, including the sliding block being fixed in connection framework 701
721 and vertical guide 722 is matched with sliding block 721.Cross slide way slide block mechanism include be fixed on the lower section of feeding crane 70 and
The linear guide 741 that is arranged along the horizontal and with the sliding block 742 that is fixed in vertical guide 722.
Nylon sheet 71 is fixed on feeding crane 70;Feeding rollover stand 711 is a L-type component, adjacent to core rod unit
11 side is hinged on feeding crane 70 by hinged shaft, and return unit is equipped between L-type component and feeding crane 70, should
Return unit is for making the L-type component be reset to stop dog position as shown in figure 12, when feeding crane 70 is in the stop dog position
When, the bending inside of L-type component lies against the workpiece in nylon sheet 71 for backstop, and in the present embodiment, return unit is to reset
Torsional spring 7110.
Referring to Fig. 1, Figure 13 and Figure 15, plectrum unit 6 includes plectrum wheel 60, pushes the top-down movement of plectrum wheel 60
Actuator 61 and the actuator for pushing plectrum wheel 60 to move along insertion transverse reciprocating, two actuators are straight-line displacement output dress
It sets, is selected as the straight-line displacement output device that rotating servo motor and leading screw and nut mechanism are constituted in the present embodiment actuator 61, and
The actuator for driving plectrum wheel edge insertion transverse shifting is cylinder, and during plectrum, plectrum wheel 60 is around its installation axle rotation.
Referring to Fig. 1, Fig. 2, Figure 13 to Figure 16, plugging unit 8 includes mounting base 81, and drive installation seat 81 exists with respect to rack 10
Vertically with the lateral plug driving mechanism for doing two-dimensional surface movement, the guiding mechanism that the inserted sheet process of PU piece 80 is oriented to
83, and the PU piece 80 of arrangement inclined after extraction is reset to the resetting-mechanism 84 along insertion lateral arrangement, insertion laterally refers to
PU piece is transversely inserted into the direction between the adjacent component to be curved of workpiece two in gap.
PU piece 80 constitutes the interval in the present embodiment and limits piece, can select the material for being applicable in hardness according to actual use operating condition
Material be made the interval limit piece, by the spacing that the two of micro-channel heat exchanger adjacent flat tubes are bent between portion be limited to certain value with
On, i.e., product yield is reduced to prevent two flat tubes to be bonded to each other after bending.As shown in figure 15, every PU piece is U-shaped
Structure.Two yoke ends 801 of the PU piece 80 of U-shaped structure are its fixing end, and concave part 802 is constituted to plectrum wheel 60 in plectrum process
In escape groove, bending part is equipped with escape groove 803 to plug single stick 111 in bending process.
Plugging driving mechanism includes the vertical support being slidably mounted in rack 10 by cross slide way slide block mechanism
82, push vertical support 82 with respect to the transverse actuator and vertical actuator that rack 10 slides laterally along insertion.
Mounting base 81 is mounted on vertical support 82 by vertical guide slide block mechanism, and vertical actuator is for pushing installation
The opposite vertical support 82 of seat 81 vertically slides.Vertical actuator is straight-line displacement output device, in the present embodiment comprising
Servo motor 851, vertical lead screw 852 and driven nut 853, driven nut 853 connect by the way that connecting rod 854 and mounting base 81 are fixed
It connects, servo motor 851 drives the vertical rotation of screw rod 852 to drive the driven nut 853 being engaged with vertically by synchronous belt
It moves and mounting base 81 is driven vertically to move back and forth.
Cross slide way slide block mechanism includes the linear guide 861 being fixed on pedestal 100 and is mounted on 82 bottom of vertical support
Sliding block 862 on face;Transverse actuator is also straight-line displacement output device, in the present embodiment comprising servo motor 871,
Horizontal leading screw 862 and nut 863, driven nut are fixed on the bottom surface of vertical support 82.Servo motor 861 passes through synchronous belt
864 driving cross lead screws 862 rotate and the driven nut being engaged with are driven to laterally move and drive vertical support 82 in cross
It moves back and forth upwards, drive installation seat 81 horizontally moves back and forth indirectly, that is, passes through vertical actuator and transverse actuator
Cooperation and to push mounting base 81 to do two-dimensional surface in vertical plane mobile.
Resetting-mechanism 84 is including vertically arranged pull rod 841, the shaft 842 being installed in rotation in mounting base 81,
One end and pull rod 841 be hinged and connecting rod 843 and return actuator 844 that the other end is fixedly connected with shaft 842, PU piece 80
Fixing end is fixedly connected with the other end of shaft 842.Pull rod 841 can be lifted by return actuator 844 in the course of work, thus
It drives shaft 842 to rotate by connecting rod 843, and then drives the 842 axis rotation around the shaft of PU piece 80 and be reset to transversely cloth
It sets;The upper section bar 8411 and lower section bar 8412 that pull rod 841 is connected by two sections by linkwork, one end of connecting rod 843 passes through hinge
Axis 845 and lower section bar 8412 are hinged, and upper section bar 8411 passes through the sets of holes of limit sleeve 846 to limit its swing horizontally
Position;The stator of return actuator 844 is hinged on attachment base 847 by hinged shaft, and mover and upper section bar 8411 are hinged;Attachment base
847 are fixedly connected with connecting rod 854.It can be can control to grab/release by clip claw mechanism, electromagnet mechanism, vacuum chuck mechanism etc.
Mechanism connection 841 and the mover of return actuator 844 of pull rod 041 are put, to realize that return actuator 844 mentions in reseting procedure
Pull rod 841 is drawn to carry out the function of lifting constraint to pull rod 841 in bending process release to reset PU piece 80, in the present embodiment
In, return actuator 844 is selected as cylinder, can be realized and deflating to cylinder to its mover and the pull rod being attached thereto 841
Lifting constraint so that PU piece 80 be floating ground be mounted on mounting base 81, i.e., in bending process, shaft 842 can be with PU piece 80
Inclination and rotate, to reduce deformation of the PU piece 80 in bending process and convenient for subsequent extraction processing.
In the present embodiment, plectrum unit 6 is integrally mounted on vertical support 82, to be controlled by servo motor 871
Device its in lateral position, and during the work time, vertical support 82 is pressed on by cross slide way machine by the piston rod of cylinder 610
On structure 862, to improve its positional stability during the work time.
Referring to Fig. 1, Fig. 2, Fig. 3 and Figure 16, guiding mechanism 83 includes fishback 830 and pushes fishback 830 transversely past
The transverse actuator 831,832 moved again and the vertical actuator vertically moved back and forth, fishback 830 are equipped with two rows of along perpendicular
To being evenly arranged for limiting the comb teeth slot 8300 that piece passes through for interval, fishback 830 is pushed vertically by vertical actuator
It moves and is directed at comb teeth slot 8300 with PU piece 80 to keep PU piece 80 to be arranged along the horizontal, and pass through transverse actuator 831,832
Fishback 830 is pushed to laterally move and be oriented to PU piece together, to ensure that it can accurately be inserted into micro-channel heat exchanger
Two flat tubes between gap in.In the present embodiment, vertical actuator is cylinder, can be realized and deflating to cylinder
Fishback 830 is in quick condition, so that fishback 830 can vertically carried out with the bending of PU piece 80 in bending process
Fine position.
Referring to Fig. 1, Fig. 2, Fig. 3 and Figure 16, place is forced down for carrying out the protrusion of the bending place of workpiece after bending is handled
The pressure protrusion element 9 of reason, so that the height of projection after bending meets Design Requirement Drawing.Protrusion element 9 is pressed to pacify by connecting plate
It is vertically reciprocal including briquetting 91, the driving briquetting by 111 side of plug in core rod unit 11 on fishback 830
Mobile actuator 92, the mover for connecting actuator 92 and briquetting 91 L-type connector 93 and for L-type connector 93 along perpendicular
To displacement carry out the guide rail slide block mechanism 94 of limition orientation, the linear guide in guide rail slide block mechanism 94 is fixed on L-type connection
On part 93, actuator 92 is straight-line displacement output device.
Referring to Fig. 1 to Figure 17, include using the process that bending equipment 1 treats the progress bending of bending workpieces micro-channel heat exchanger
Feeding step S1, inserted sheet step S2, plectrum step S3, the step that pre-bends S4, inflection step S5, paddle step S6, bending walks again
Rapid S7 and blanking step S8.
Feeding step S1 by workpiece handling and is overturn, is declined so that its lower end surface is resisted against supporting plate by feeding unit material 7
On 391, plug 111 is inserted into plug mounting base 110, and plug 111 is made to be located at the bending position of workpiece adjacent to workpiece bending
The side of interior angle;Then control centering unit 5 acts with clamping unit 3 and clamps workpiece centering.
Micro-channel heat exchanger was laterally fallen and was lain against in nylon sheet 71, and its lower end surface is made to be resisted against feeding rollover stand
On 711.Feeding crane 70 is manually pushed transversely to be moved to microchannel towards the direction close to clamping unit 3 using handle 712
The lower end of heat exchanger is resisted against in nylon sheet 392, i.e., along insertion transverse shifting;Using feeding rollover stand 711, manually catch micro- logical
The upper end of road heat exchanger overturns it to generally vertically arranging around the hinged shaft of feeding rollover stand 711;Control lift actuator
The lower end that 73 driving feeding cranes 70 drop to micro-channel heat exchanger is resisted against on supporting plate 391 and lifts workpiece;By plug 111
It is inserted into plug mounting base 110, and plug 111 is made to be located at the bending position of workpiece adjacent to the side of workpiece bending interior angle;Upper
During material crane 70 drops to below workbench, work of the feeding rollover stand 711 in 7110 elastic restoring force of reduction torsion spring
It is reset at stop dog position with lower.
According to the clamping centering operational order that operator is inputted by touch screen, (1) control unit controls main clamping machine
The upper main clamping device 302,303 of structure clamping, i.e. driving playbacks so that backing plate 43 can decline and pass through clamping pilot hole 3031, and under
Main clamping device 306,307 is clamped to the lower end for holding workpiece;(2) control centering unit 5 by touch screen according to being inputted
The lateral dimension of micro-channel heat exchanger and bending part are located at the position data in transverse direction, first pass through two servo motors 56 and work
And while so that the spacing between the locating piece of left and right is greater than workpiece lateral dimension, and spacing between left and right locating piece and plug 111
Difference meets offset relation between workpiece bending part and its center, then controls the movement of centering actuator 50 and pushes left and right positioning
Block is adjusted the position of micro-channel heat exchanger horizontally towards the movement of 10 center of rack and realizes centering, i.e. workpiece
Bending part is at the position of plug 111;(3) it assists clamping device 301,304 to be moved downward in control to clamp with lower auxiliary
Mechanism 305,308 vertically matches the size of workpiece, and clamping actuator control clamping jaw is driven to clamp micro-channel heat exchanger
Upper and lower ends, to carry out auxiliary clamping to the location of workpiece;Then control base plate unit 4 drives backing plate 43 to move down to pass through upper master
Clamping pilot hole on the clamping jaw of clamping device 302,303, and make workpiece between backboard 39 and backing plate 43;(4) it controls auxiliary
It helps clamping device to open to discharge the auxiliary clamping to workpiece, then controls the straight-line displacement output device movement in backboard unit
And be clamped in backboard 39 together on the two sides of workpiece with backing plate 43 and complete the clamping to workpiece, with backing plate 43, backboard 39
Entire plate face clamps workpiece, is effectively prevented workpiece and occurs undesirable deformation in bending process, while in this reality
Apply select switch base plate and big backboard in example and be applicable to sizes to bending workpieces.
Inserted sheet step S2, between PU piece 80 is inserted between adjacent two flat tube of micro-channel heat exchanger by control inserted sheet unit 8
In gap, i.e., in the gap between two adjacent bending components of insertion workpiece.
Transverse actuator in control plug driving mechanism drives PU piece 80 to laterally move to the position of neighbouring workpiece, connects
Control guiding mechanism 83 drive transverse actuator 831 to be moved to the position of neighbouring workpiece, then in control plug driving mechanism
Transverse actuator drive PU piece 80 to be transversely inserted into two flat tubes of two micro-channel heat exchangers between gap in, i.e., driving PU piece
80 along insertion transverse shifting.
The plectrum wheel 60 of plectrum step S3, control plectrum unit 6 carry out the flat tube of micro-channel heat exchanger from top to down
Plectrum processing, i.e., carry out plectrum processing to workpiece.
The step that pre-bends S4 controls bending unit 2 for workpiece bending first angle.In the present embodiment, it is desirable that will be micro- logical
145 degree of road heat exchanger bending, i.e., predetermined bending angle is 145 degree, makes 35 degree of angle after bending between both sides;First jiao
Degree is typically less than equal to predetermined bending angle, preferably adjacent to predetermined bending angle, is selected as being equal to predetermined bending angle in the present embodiment,
I.e. first angle is 145 degree.
During pre-bending, PU piece 80 is clamped due to workpiece bending part and PU piece 80 can be tensed as bending deforms,
It is required that the transverse actuator during pre-bending again in control plug driving mechanism drives PU piece 80 transversely to move forward centainly
Distance, usually will be to being pushed forward 10 millimeters to 20 millimeters, be tightened up to avoid PU piece 80 and reduce its service life.
Inflection step S5 controls bending unit 2 for the workpiece inflection second angle through pre-bends process, and second angle is less than
First angle.It by inflection is made under the operating condition of big bending angle, convenient for extracting PU piece, it is desirable that inflection angle is less than first
Angle is selected in the present embodiment second angle being selected as 55 degree, i.e., workpiece two sides angle is 90 degree after inflection.
Paddle step S6, control plug unit 8 extract interval from the workpiece handled through inflection and limit piece.
According to after bending PU piece 80 generally ramped angle setting, setting plug driving mechanism in transverse actuator with
The tangent value that the ratio between the drive displacement rate of vertical actuator, i.e. the ratio between the two are equal to PU piece inclination angle, to apply to PU piece
Along the pulling force of its inclined direction arrangement, so that PU piece 80 be made substantially to be pulled out along its inclined direction, in order to which be pulled out will not
The problems such as bending.The inclination angle of PU piece can be defaulted as to 45 degree and closer to various situations.
During paddle, driving comb plate 830 transversely retreats certain distance, to avoid PU piece 80 in paddle process
In be detached from from the comb teeth slot of fishback 830.
Bending step S7 again controls bending unit 2 for the workpiece bending third angle handled through paddle to preset shape.Its
In again bending step S7 can carry out once, i.e., by workpiece bending to angle be one-time-reach-place 35 degree of positions, can also be by twice
Above bending and be 35 degree by workpiece bending angle position, i.e., in the present embodiment, third angle can be equal to 55 degree, can also
Bending more than twice is carried out less than 55 degree, and the size of third angle is configured according to actual use operating condition.
Blanking step S8, control clamping unit 3 act and discharge the workpiece after bending, and by workpiece from bending equipment
Carry undercarriage.
During controlling the release workpiece of clamping unit 3, by driving backboard 39 to move a certain distance backwards, and drive
Backing plate 43 is retreated to rise to from clamping pilot hole 3031 and be decoupled with clamping pilot hole 3031, then drives upper main clamping device
Clamping jaw open.
Then the lower end that control lift actuator 73 drives feeding crane 70 to rise to micro-channel heat exchanger is resisted against
Expect rollover stand 71, plug 111 manually removed from plug mounting base 110, then manually pull feeding crane 70 and by product
It is pulled away from bending arm.
After completing paddle, reset processing can be carried out to the position of PU piece 80, reset processing can be together with bending step again
It carries out and saves the time;It can also be carried out in subsequent process.
In above steps, wherein inserted sheet step S2, plectrum step S3, the step that pre-bends S4, inflection step S5, pull out
Piece step S6 and again bending step S7 are to control each unit by the control unit of bending equipment to cooperate and execute, other steps
From manually being completed with machine.
In the present embodiment, the mounting means that each unit is mounted in rack 10 includes the installation side being directly fixedly connected
Formula further includes the indirect mounting means by being also secured at unit and rack on pedestal.
In the present embodiment, vertically refer to the axial direction arrangement along plug 111, be laterally to be parallel to vertically for the flat of normal direction
Face;In the present embodiment, it vertically vertically arranges, and is laterally horizontal direction.
The main idea of the present invention is by adding plug unit in the technology of existing bending equipment, in plectrum
Before unit carries out plectrum processing to workpiece, in the restriction piece in insertion interval between being bent over component of workpiece, and at workpiece is through plectrum
Interval is extracted after reason and the processing of bending at least once and limits piece, to prevent workpiece from occurring two adjacent bending component fittings after bending
The problem of, effectively improve the yields of workpiece bending processing;According to this design, bending unit, clamping unit, core rod unit,
The structure of centering unit and plectrum unit is not limited to knot disclosed in documents listed by above-described embodiment and background technique
Structure, also there are many obvious variations;In addition, for the structure for plugging unit, to limit piece along insertion for that will be spaced
In gap between the adjacent component to be curved of laterally inserted workpiece two, and interval restriction piece is pulled out with after bending processing in plectrum processing
Out, i.e., only need to ask its can control the mounting base for limiting piece for installation interval can carry interval limit piece insertion laterally with it is perpendicular
Do two-dimensional movement to both direction, specific structure is not limited to the structure in above-described embodiment, also there are many aobvious and
The variation being clear to.