Planer type numerical control boring and milling machine automatic push-pull formula head storehouse device
The utility model belongs to Machine Manufacture field, is related to the plug-type head storehouse device of planer type numerical control boring and milling machine.That is gantry
The head storehouse that milling head in formula digital-control boring-milling machine is changed automatically.
At present, in machine industry in ram and the automatic structure for changing class milling head, ram crawl milling head, ram and milling head
Between tensioning mechanism generally in the form of multiple pull head oil cylinders or disk spring drive pulling claw to clamp milling head；Ram and milling head
Between positioning then by ram spindle taper hole and milling head taper shank coordinate.When ram does not install milling head, but with the master of oneself
, it is necessary to install protection cap in ram front end when axial cone hole clamping cutter is processed, tensioning mechanism is covered, prevent working angles
Middle iron filings are splashed, and damage tensioning mechanism.
Domestic traditional automatic milling head substitute mode mainly has three kinds：The first is that milling head is placed on simple rack,
Need to be moved on workbench milling head together with simple rack with crane when changing milling head, then by manually carrying out ram after centering
Aligned with milling head, ram crawl milling head so far completes the connection of milling head and ram.Then milling head support is removed, changes a process
Terminate.This changes a mode, and time-consuming, manually participates in many, complex steps, and precision is difficult to ensure that.Second is to do milling head support
The side of machine pillar is arranged on, it is necessary to artificial when changing milling head be rocked to the vertical of lathe by milling head support into a rocker arm body
Post front, column front is provided with fixed mechanism can be fixed on specified location by milling head support, then move ram to specified location
Afterwards, ram stretches out automatic crawl milling head.After treating that milling head is caught away by ram, then manually by milling head support swing return to stud sides
Face.This mode is convenient compared with the first, but still needs artificial participation.The third is along lathe bed length direction in column side
Place and change a dolly and track by what servomotor drove, when needing to change milling head, change a dolly and be moved to specified location (i.e.
Change a point), then ram be moved to change head point automatically crawl change head.This kind of mode is full-automatic replacing, but due to changing
Head dolly is external and configuration servomotor is, it is necessary to increase high cost, and floor space is greatly, and arrangement is not easy between protection.
The content of the invention
The purpose of this utility model is to provide a kind of planer type numerical control boring and milling machine automatic push-pull formula head storehouse device, is realized certainly
Move head, it is long that a time is changed in solution, changes a low precision, takes the excessive problem in lathe space.
This planer type numerical control boring and milling machine automatic push-pull formula head storehouse device, including electric control system, cylinder control valve group,
Stopping means and two groups of line slideways, it is characterised in that upper bracket and undersetting vertical direction are arranged above and below, by high intensity
It is bolted on machine pillar leading flank；Protection cap bracket gas cylinder and milling head bracket gas cylinder are separately fixed at upper bracket and lower branch
On seat, two piston-rod ends of cylinder are connected with protection lid support and milling head support respectively；Protection lid support line slideway and
Milling head support line slideway is arranged on the upper surface and front end face of upper and lower bearing by screw respectively, protects lid support and milling
Sliding block of the head bracket respectively with two groups of line slideways is fixed；Cylinder interior is provided with magnetic switch, used as position feedback device.
The characteristics of the utility model is：
1st, power source when the utility model is moved using cylinder as milling head head storehouse, it and the milling head being widely used at present
, compared to having more efficient, accurate service behaviour, its structure is simpler, compact, and space requirement is smaller, is more beneficial for for head library structure
The stroke of lathe is saved, there is unique advantage on planer type numerical control boring and milling machine.
2nd, because protection cap and automatic milling head are identical with the interface of ram, the design is by protection cap as another automatic milling
Head treatment, will protection lid support is upper and lower with milling head support is vertically arranged, saving lathe space.
3rd, the utility model has the magnetic switch of position detection at cylinder two ends, can be sent out when piston rod runs in place
Go out signal.It is not required to extra contact switch.
The utility model by Zhongjie Machine Tool Co., Ltd planer type numerical control boring and milling machine GMC2040RL it is practical prove, be
A kind of simple structure, compact, dependable performance, automatic head-changing head magazine mechanism flexible for installation.To improve the automation journey of the lathe
Degree plays significant role.
Brief description of the drawings
Fig. 1 is planer type numerical control boring and milling machine automatic push-pull formula head storehouse front view；
Fig. 2 is planer type numerical control boring and milling machine automatic push-pull formula head storehouse left view.
In figure, 1 protection cap；2 right-angle milling heads；3 protection lid supports；4 milling head supports；5 upper brackets；6 undersettings；7 protection caps
Support line slideway；8 milling head support line slideways；9 protection cap bracket gas cylinders；10 milling head bracket gas cylinders；11 process limited blocks；12
Backhaul limited block；13 briquettings；14 squeeze block.
As depicted in figs. 1 and 2, Fig. 2 is that Fig. 1 left views turn clockwise 90 ° for structure of the present utility model and embodiment；
In planer type numerical control boring and milling machine automatic push-pull formula head storehouse device, including electric control system, cylinder control valve group, stopping means with
And two groups of line slideways, it is characterised in that upper bracket 5 and the vertical direction of undersetting 6 are arranged above and below, and are fixed by high-strength bolt
On machine pillar leading flank；Protection cap bracket gas cylinder 9 is fixed on upper bracket 5, milling head bracket gas cylinder 10 and is fixed on undersetting 6
On, two piston-rod ends of cylinder are connected with protection lid support 3 and milling head support 4 respectively；The He of protection lid support line slideway 7
Milling head support line slideway 8 is arranged on the upper surface and front end face of upper and lower bearing 5,6 by screw respectively, then is pressurizeed respectively
Block 13 and crowded block 14 will protect lid support line slideway 7 and the side of milling head support line slideway 8 to be positioned and compressed；Protection cap
Support 3 and milling head support 4 are consolidated by screw with the sliding block of protection lid support line slideway 7 and milling head support line slideway 8 respectively
Fixed connection, makes protection lid support 3 and milling head support 4 under the promotion of protection cap bracket gas cylinder 9 and milling head bracket gas cylinder 10, can
Moved along protection lid support line slideway 7 and milling head support line slideway 8.Two groups of length of guide rail are more than respective holder width
Twice, it is ensured that when support returns standby position, is not take up machine tooling region.Protection cap bracket gas cylinder 9 and milling head bracket gas cylinder 10
Inside is provided with magnet ring (i.e. magnetic switch), and when the piston rod movement of cylinder is to magnet ring position, magnetic switch is anti-to digital control system
A signal is fed to, informs that protection lid support 3 or milling head support 4 have moved to position.In order to ensure robust motion and security,
In addition to the magnetic switch of cylinder interior, in the device of plug-type head storehouse 5,6 also on the upper and lower bearing on be provided with process limited block
11 and backhaul limited block 12, limited block uses hydraulic damping device.
The course of work of head storehouse device is as follows：
When changing, machine tool numerical control system makes the cylinder in a storehouse complete to change in a program and design by controlling pneumatic valve group
Change head action, promote protection lid support and milling head support to change a coordinate position to what is formulated in program successively；After in place, cylinder
On magnetic switch to system feedback signal in place, digital control system controls ram to complete remaining and change head to act again；Head is changed to have acted
Cheng Hou, digital control system controls cylinder that support is returned into position of readiness, completes the whole series and changes a program.
Operator is sent after changing head instruction, and machine tool numerical control system controls protection cap bracket gas cylinder 9 by pneumatic valve group, promotes
Protection lid support 3 is moved along protection lid support line slideway 7 from position of readiness to a position is changed；When protection cap bracket gas cylinder 9
Piston rod drives protection lid support 3 to move to when near process magnetic switch, and protection lid support 3 bumps against process limited block first
11, the hydraulic bjuffer of process limited block 11 makes protection lid support 3 steadily slow down, and a position is changed until protection lid support 3 is reached,
Trigger magnetic switch feedback process signal in place, the stop motion of system control protection cap bracket gas cylinder 9；Following system control machine
Bed ram movement to protection cap changes a point coordinates position, and control pull head oil cylinder is unclamped, and protection cap 1 is returned on protection lid support 3；
After protection cap 1 is disengaged with ram, ram internal pressure switch can be triggered, signal is disengaged to system feedback protection cap 1.System is connected to
After disengaging signal, control protection cap bracket gas cylinder 9 drives protection cap 1 and protection lid support 3 to return to position of readiness, when protection cap branch
Frame 3 is reached when near position of readiness, and backhaul limited block 12 is bumped against first, and the hydraulic bjuffer on backhaul limited block 12 works,
Principle is identical with process limited block；After the backhaul of lid support 3 is protected in place, the magnetic switch of protection cap bracket gas cylinder 9 feeds back to
Journey protects lid support backhaul signal in place.
System is connected to the backhaul of protection lid support 3 in place after signal, control milling head bracket gas cylinder 10 promote milling head support 4 and
The milling head 2 of internal stent, moves to a position is changed, and principle is as before；Milling head support 4 is reached after changing a position, numerical control system
System control ram movement changes head point position coordinates to milling head, and controls pull head oil cylinder to clamp, and milling head 2 is combined with ram；Change
After the completion of head action, ram internal pressure is switched and clamps signal in place to system feedback, and the ram of system control afterwards is moved upwards,
Milling head 2 is pulled out from milling head support 4, it is ensured that milling head 2 does not exist movement interference with milling head support 4；Afterwards, system control milling
Head bracket cylinder 10 drives milling head support 4 to return to position of readiness in a storehouse device, and a whole set of milling head is changed program and is automatically performed.Entirely
Process automatically controls realization by program setting, is not required to artificial participation.