CN104723039B - A kind of numerical control gantry drilling and milling machine being applied to the processing of trolley coach underframe and its processing method - Google Patents
A kind of numerical control gantry drilling and milling machine being applied to the processing of trolley coach underframe and its processing method Download PDFInfo
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- CN104723039B CN104723039B CN201510131139.4A CN201510131139A CN104723039B CN 104723039 B CN104723039 B CN 104723039B CN 201510131139 A CN201510131139 A CN 201510131139A CN 104723039 B CN104723039 B CN 104723039B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q1/00—Members which are comprised in the general build-up of a form of machine, particularly relatively large fixed members
- B23Q1/01—Frames, beds, pillars or like members; Arrangement of ways
- B23Q1/015—Frames, beds, pillars
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P23/00—Machines or arrangements of machines for performing specified combinations of different metal-working operations not covered by a single other subclass
- B23P23/02—Machine tools for performing different machining operations
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q1/00—Members which are comprised in the general build-up of a form of machine, particularly relatively large fixed members
- B23Q1/01—Frames, beds, pillars or like members; Arrangement of ways
- B23Q1/012—Portals
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q17/00—Arrangements for observing, indicating or measuring on machine tools
- B23Q17/002—Arrangements for observing, indicating or measuring on machine tools for indicating or measuring the holding action of work or tool holders
- B23Q17/003—Arrangements for observing, indicating or measuring on machine tools for indicating or measuring the holding action of work or tool holders by measuring a position
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q3/00—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
- B23Q3/02—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine for mounting on a work-table, tool-slide, or analogous part
- B23Q3/06—Work-clamping means
- B23Q3/08—Work-clamping means other than mechanically-actuated
- B23Q3/082—Work-clamping means other than mechanically-actuated hydraulically actuated
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q5/00—Driving or feeding mechanisms; Control arrangements therefor
- B23Q5/22—Feeding members carrying tools or work
- B23Q5/26—Fluid-pressure drives
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q5/00—Driving or feeding mechanisms; Control arrangements therefor
- B23Q5/22—Feeding members carrying tools or work
- B23Q5/34—Feeding other members supporting tools or work, e.g. saddles, tool-slides, through mechanical transmission
- B23Q5/38—Feeding other members supporting tools or work, e.g. saddles, tool-slides, through mechanical transmission feeding continuously
- B23Q5/385—Feeding other members supporting tools or work, e.g. saddles, tool-slides, through mechanical transmission feeding continuously using a gear and rack mechanism or a friction wheel co-operating with a rail
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q5/00—Driving or feeding mechanisms; Control arrangements therefor
- B23Q5/22—Feeding members carrying tools or work
- B23Q5/34—Feeding other members supporting tools or work, e.g. saddles, tool-slides, through mechanical transmission
- B23Q5/38—Feeding other members supporting tools or work, e.g. saddles, tool-slides, through mechanical transmission feeding continuously
- B23Q5/40—Feeding other members supporting tools or work, e.g. saddles, tool-slides, through mechanical transmission feeding continuously by feed shaft, e.g. lead screw
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- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Machine Tool Units (AREA)
Abstract
The invention discloses a kind of numerical control gantry drilling and milling machine being applied to the processing of trolley coach underframe.Its lathe bed is overall closed-in construction；Lathe bed bottom is provided with the small rail car that can move in track；Length direction along workpiece is provided with least two processing stations, and the front side of each station and rear side are provided with underframe, are provided with clamping device between the front and back ends of left and right lathe bed and corresponding underframe.Lowering or hoisting gear and synchronizer are installed between lathe bed and small rail car.The method processing trolley coach underframe using the said equipment, comprises the following steps：Work piece hoisting puts in place；Host mobility is to the first station；Main frame clamps；The adjustment location of workpiece is to state to be processed；Workpiece clamping；To knife, find out workpiece coordinate system initial point；Workpiece is carried out with milling, drilling processing；Clamping device unclamps, and host mobility is to the second station；Repeat above step, complete the processing content of the second station；Repeat above step, carry out the processing of next workpiece.Have the advantages that structure is simple, low cost.
Description
Technical field
The present invention relates to trolley coach technical field of processing equipment, it is applied to the processing of trolley coach underframe particularly to one kind
Numerical control gantry drilling and milling machine and its processing method.
Background technology
Car body is one of most important building block in urban rail transit vehicles, and it is supported on bogie, car body bottom
Frame bottom and roof install substantial amounts of electromechanical equipment, constitute the main body of vehicle.Car body is by underframe, both walls（Including car door, car
Window）, headwall, the most of composition of roof 6 in front and back.Large-scale trolley coach underframe is to be combined into by floor, side bar, welding structural element etc.
Aluminium alloy, carbon steel or stainless steel large-sized component, be the architecture basics of car body, not only car body to be born itself and in-car own for it
The weight of equipment, also the transmission pull strength of vehicle and brake force simultaneously, and it is various multiple to bear bending in running, torsion etc.
Miscellaneous load.Start once to process, using independent, the processing mode that group weldering after each parts forms whole car body, due to error accumulation, weldering
Connect the impact of the factors such as deformation, the assembly ratio of precision of the car body that this mode is processed relatively low it is impossible to meet bullet train to car load car
Body high speed, the stable, requirement of reliability service；The technique side gradually beginning with parts group postwelding entirety machining later
Method, impact problem that can be with effectively solving welding stress deformation, rigging error to car load precision.But simultaneously also to process equipment,
Processing technique, frock are put forward higher requirement, and not only need large-scale process equipment, also need outfit Special processing tooling to be installed
Fixing.
Fig. 1, Fig. 2 are a kind of trolley coach underframe（It is inverted）Structural representation, rail passenger car body Undercarriage structure adopt
Various section bar grafting group welderings form, and are the reference for assemblings of bodywork assembly, generally underframe are divided into floor, side bar, draw beam, buffering
The units such as beam, sleeper beam and crossbeam, carry out modularized design, then group weldering, and cloth welds reinforcement, constitutes integral frame-type structure, side
Beam mainly undertakes longitudinal loading, transmits fore-and-aft direction power, and crossbeam, floor undertake vertical load, supports guest room equipment and passenger etc.
And lift underfloor machine；And draw beam, sleeper beam, pilot beam undertake longitudinal direction and vertical load simultaneously, sleeper beam is used for connecting and turns
To frame, for supporting the weight of car body, it is the place that car body is directly connected with bogie, bears huge loading force, will simultaneously
The installation requirements meeting braking with electrical pipeline are so that sleeper beam must have the very high rigidity of structure, intensity and flatness.Sleeper beam
Be made up of the sleeper beam seat being welded on edge beam of underframe, sleeper beam seat is the box structure of heavy wall shape extrusion, have antitorque and
Resistant to bending high rigidity, the centre bore on A face and 8 connecting holes are used for connecting centrepin, and then connect draw beam, and B face is used for
Connect side bearing, the two differs 171mm in short transverse, the allowance of 5mm is reserved in B face, for being soldered in whole underframe group
Milling removes afterwards, reaches the planarity requirements of needs, to install bogie and vibration absorber.
From Fig. 1, Fig. 2, rail passenger car body underframe has distinctive big cross section thin plate box construction featuress, its length
Degree reaches 24.2 meters, and 2.82 meters of width is complex-shaped and irregular, and its processing characteristic is, and 1, not only need large-scale process equipment,
2nd, also need to be equipped with Special processing tooling and be installed fixation；Just above-mentioned 2 points of prior art scenario is analyzed as follows below：
1st, the process equipment currently for trolley coach underframe uses the large-sized numerical control planer-type of large span, Long travel
Whether process equipment, can be divided into fixed-beam and two kinds of movable beam type with cross beam movement, and the structure of movable gantry numerical control drilling milling machine is special
Point is that portal frame is mobile, workbench is fixed, so it does not limit to the weight of workpiece, can with processing super long type part, with
Its automatization's performance and the continuous improvement of Composite degree, obtain and are increasingly widely applied.Movable gantry numerical control drilling-milling
Bed, its structure includes lathe bed, gantry, cross slid platform, workbench, hydraulic power unit and electrical control gear, and peace is passed through at gantry
It is loaded on the driving means between gantry upright post and lathe bed and actuating device and make X to movement along the line slideway being installed on lathe bed,
Cross slid platform is made up of slide unit, slide plate, is provided with driving means and actuating device between slide unit and gantry beam, drives slide unit edge
Line slideway on gantry beam is made Y-direction and is moved, and unit head and slide plate are connected, be provided between slide plate and slide unit driving means and
Actuating device, drives slide plate and unit head to make Z-direction along the line slideway being installed on slide unit and moves.As State Intellectual Property Office in
Disclosed in 17 days July in 2013 by the clear design of Lu Songmao, Xue Jing, Application No. 201310130111.X, entitled gantry moves
The application for a patent for invention of dynamic formula multifunctional numerical control drilling and milling machine, including lathe bed, control box and electrical control cubicles, column is slidably supported at
On lathe bed, column is fixed with beam mechanism, upper brill milling mechanism is slidably supported on beam mechanism, and electrical control cubicles are installed in
On beam mechanism, lathe bed is Split type structure, and including left part lathe bed and right part lathe bed, left part lathe bed and right part lathe bed are connected by centre
Frame connects, and workbench is packed on link；Left column, right column are slidably supported at left part bed by slide mechanism respectively
On body and right part lathe bed；Beam mechanism across and be installed on left column and right column, upper brill milling mechanism be contained in mobile support
On plate, mobile support strip moves the main shaft boring milling mechanism along beam mechanism movement, and the elevating movement of main shaft is by elevating mechanism control
System, the movable plate in elevating mechanism is slidably supported on brill milling mechanism, and movable plate drives main shaft to carry out ascending, descending fortune
Dynamic.
《Shandong industrial technology》Magazine the 8th phase in 2014 delivers, author is Changchun Railway Vehicle Co., Ltd. Lee
Protect state, the article of entitled " passenger train aluminium alloy underframe integral processing ", describe Changchun trolley coach share limited
30 meters of movable gantry five-shaft linkage numerical control machining centers that equipment Imported From German EMH Company FOOKE company of company produces, its traveling shaft size can
Meet the requirement of underframe overall processing, the main tapping of 42kW electro spindle, meet aluminium alloy and cut the high-power low torque of high rotating speed
Characteristic.Even if the Large Machining Center of this import, because machine tooling area is huge, Integral operating platform cost is high, installs tired
Difficulty, so abandoning Integral operating platform scheme, employs segmentation workbench scheme；And frock is interfered with work pieces process position
Require clamping position must possess flexibly adjustable function, therefore employ and movable beam is installed as base on double longitudinal rails
The fixture scheme of seat, above the folding frock of uniform lifting workpieces height.
The process equipment of this kind of structure is workpiece to be directly fixed on workbench complete to process, the therefore length of workbench
Need to be longer than workpiece, gantry need to move in the range of workpiece total length exceeding, and carries out accurately on so long stroke
, it is seen that the complexity of structure, the complexity of its structure is it is clear that price is also very expensive for processing, positioning.
2 as noted previously, as underframe shape not a flat board it is impossible to directly on the work platformses of process equipment plus
Work, therefore, need to carry out fixed frame by frock.State Intellectual Property Office in disclosed on 2 26th, 2014 by Bao Hongyang, Wang Jun
Field design, Application No. 201310568276.5, the patent of invention of entitled rail vehicle big component processing automatic jig
By the designs such as Yuan Feng, Liu Kai, Application No. 201310517132.7, entitled one kind disclosed in application, 29 days January in 2014
The big part of aluminum alloy car-body for metro machines the application for a patent for invention of multifunctional universal frock, all proposes and is applied to large-scale processing
The technical scheme of fixing Special processing tooling that is installed, this kind of tool structure body are carried out to large components such as vehicle body bottom frames on equipment
Long-pending big, the phenomenon that with process equipment operator head interfere sometimes occurs, makes working (machining) efficiency therefore suffer from very big impact；This
Outward, because underframe and floor panel structure are totally different, this kind of frock is also difficult in adapt to the use that is installed on multiple underframe, floor, has applicable
The little limitation of scope.
For this reason, it may be necessary to develop provide the brill Milling Machining of the rail passenger car body underframe processing that can eliminate drawbacks described above to set
Standby.
Content of the invention
It is an object of the invention to overcoming the deficiencies in the prior art, provide that a kind of structure is simple, with low cost, be applied to rail
The numerical control gantry drilling and milling machine of road underframe of coach processing.
Present invention also offers a kind of carry out the processing method that trolley coach underframe bores Milling Machining using this equipment.
The technical solution adopted in the present invention is for achieving the above object：
A kind of numerical control gantry drilling and milling machine being applied to the processing of trolley coach underframe, including lathe bed, gantry, Workpiece clamping dress
Put, Working piece positioning device, hydraulic power unit and electrical control gear, described gantry can make X to movement along the guide rail on lathe bed,
Cross slid platform along Y-direction movement is slidably fitted with gantry beam, cross slid platform is slidably fitted with the power along Z-direction movement
Head it is characterised in that：Described lathe bed includes left lathe bed, right lathe bed, front tie-beam and rear tie-beam, before left lathe bed, right lathe bed
End is connected by front tie-beam, and left lathe bed, the rear end of right lathe bed pass through rear tie-beam and be connected, and constitute integrally-built frame bed
Body；Described left lathe bed, the bottom at right lathe bed two ends is corresponding to front tie-beam and rear tie-beam is respectively equipped with small rail car, track
Dolly can move back and forth along X direction of principal axis in two tracks on being fixed on foundation respectively；Described Workpiece clamping device
With Working piece positioning device is fixed on the foundation between two tracks；Length direction along workpiece is provided with least two processing
Station, is respectively arranged with two underframe being fixed on foundation in the front side of each processing stations and rear side, and the two of front side
Individual underframe is positioned at the outside of front tie-beam and corresponding with the front end of left lathe bed, right lathe bed respectively, and two underframe of rear side are located at
The outside of tie-beam and corresponding with the rear end of left lathe bed, right lathe bed respectively afterwards；Described left lathe bed, the front end of right lathe bed and phase
It is provided with clamping device between corresponding underframe, be respectively arranged between left lathe bed, the rear end of right lathe bed and corresponding underframe
Clamping device.
In order to improve machining accuracy, in the present invention, be provided between described lathe bed and small rail car lowering or hoisting gear and with
Step device.Processing as shown in Figure 1 and Figure 2 carry differing heights machined surface workpiece when, lowering or hoisting gear can by lathe bed together with
Main frame thereon together rises, and crosses over the peak of workpiece, to needing to reduce height behind the position processing, to avoid processing relatively again
During the plane of lower position, main shaft stretches out machining accuracy long, that Stiffness Drop low strap is next to be reduced.
In technique scheme, described lowering or hoisting gear includes link, hoist cylinder, guide pin bushing A and guide pillar A, and link divides
It is not fixed on front tie-beam, the outside of rear tie-beam, hoist cylinder and guide pin bushing A are installed on link, the piston of hoist cylinder
Bar rod end is connected with small rail car, and guide pillar A is corresponding with guide pin bushing A, is installed on small rail car, can slide in guide pin bushing A；
In technique scheme, described synchronizer includes gear, tooth bar, tooth bar mounting seat, bearing block, synchronizing shaft, and two
Individual bearing block is respectively arranged in the rear and front end outside left lathe bed, is rotatably connected to synchronizing shaft, synchronizing shaft between two bearing blocks
Two ends be separately installed with gear, the tooth bar being meshed with gear is installed in tooth bar mounting seat, and tooth bar mounting seat is installed on rail
On road dolly.
In technique scheme, further, described synchronizer also includes the liquid being correspondingly arranged respectively with hoist cylinder
Pressure proportioning valve, hydraulic proportion valve is connected between hoist cylinder and hydraulic power unit.
In technique scheme, described lowering or hoisting gear can also adopt following structure, including link, motor, subtracts
Fast machine, diverter, leading screw, screw, guide pin bushing A and guide pillar A, link is respectively fixedly connected with the outside of front tie-beam, rear tie-beam, changes
It is installed on link to device and guide pin bushing A, guide pillar A is corresponding with guide pin bushing A, is installed on small rail car, can slide in guide pin bushing A
Dynamic；Motor and reductor are installed on lathe bed, and reductor input shaft is connected with motor, output shaft is connected with and is connected
Bar, diverter input is connected with connecting rod, and outfan is connected with leading screw, and screw is matched with leading screw, is installed on small rail car
On.
In the present invention, described small rail car includes vehicle frame, driving means and by being from left to right rotationally connected with successively
Wheel A on vehicle frame, wheel B and wheel C, wheel C is coaxially installed with sprocket wheel, and sprocket wheel passes through in chain and driving means
Drive sprocket is connected；Described driving means are the motor and speed reducer being installed on vehicle frame, and described drive sprocket is arranged
On the output shaft of reductor, the input shaft of reductor is connected with motor.
In the present invention, described underframe is connected with foundation by the first base anchor, and top is provided with gripper shoe, supports
One end of plate protrudes from underframe, and the outside that gripper shoe protrudes from underframe one end is provided with adjustment plate, and adjustment plate is provided with adjustment
Bolt；During unit head work, lathe bed planar issuable rotation can be limited by adjustment bolt.
Described clamping device includes installing rack, clamping cylinder, guide pin bushing B, guide pillar B and clamp, and installing rack is by riser, gusset
With transverse slat composition, installing rack passes through riser and lathe bed is connected, and clamping cylinder and guide pin bushing B are installed on the transverse slat of installing rack, clamping
The piston rod rod end of oil cylinder is connected with clamp, gripper shoe is held between clamp and transverse slat, guide pillar B is corresponding with guide pin bushing B, peace
It is contained on clamp, can slide in guide pin bushing B.
Processing and installation and debugging for convenience, the gripper shoe on underframe in technique scheme, in same processing stations
Upper plane in the same plane.
In technique scheme, the ultimate range of lower plane to the upper plane of gripper shoe of described transverse slat is less than hoist cylinder
Stroke.Lathe bed is together risen by lowering or hoisting gear together with main frame thereon, moves to processing stations, lowering or hoisting gear moves again
Make, main frame falls to contacting with underframe, the ultimate range due to lower plane to the upper plane of gripper shoe of transverse slat is less than hoist cylinder
Stroke, when the upper plane contact of the gripper shoe on lower plane and the underframe of the transverse slat of clamping device, main frame stops falling, but
Now the piston rod of hoist cylinder is not fully retracted, and hoist cylinder piston rod continues to retract, and small rail car is raised, and makes track
Dolly departs from track, then gripping means grips, and main frame is fixed on the underframe being connected with foundation so that equipment has
There is higher rigidity.
In the present invention, described Working piece positioning device includes the adjustment parallels being arranged at workpiece bottom, is arranged at workpiece left end
Positioner A, be arranged on front side of workpiece and rear side positioner B；
Described positioner A is made up of locating rack A and adjustment bolt A that is arranged on locating rack A, locating rack A and ground
Basis is connected；
Described positioner B is made up of locating rack B, T-shaped piece and adjustment bolt B, and locating rack B is connected with foundation,
Locating rack B is provided with T-shaped piece of mounting groove, and T-shaped piece is installed in T-shaped piece of mounting groove, and adjustment bolt B is arranged on T-shaped piece.
In the present invention, described Workpiece clamping device includes material-pressing rack, hold-down bolt and pressure rack, pressure rack by the second base anchor,
Briquetting and bearing plate composition, the second base anchor is connected with foundation, the lower end of briquetting and bearing plate and the second base anchor phase
Connect, hold-down bolt passes through the through hole on material-pressing rack to be connected with the upper end of bearing plate, and the side of material-pressing rack is pressed on briquetting, separately
Side is pressed on workpiece.
In order to improve machining accuracy, in the present invention, described left lathe bed, the bottom of right lathe bed are respectively arranged with two floatings
Support.
In technique scheme, described float support includes base plate, disc spring and bracing frame, and base plate is connected with foundation
Connect, between the bottom of bracing frame and base plate, be provided with disc spring, when lathe bed falls on underframe, floated with lathe bed and connect in the top of bracing frame
Touch.
In technique scheme, described float support can also adopt following structure, by base plate, floating cylinder, gripper shoe,
Guide pin bushing C and guide pillar C composition, base plate is connected with foundation, and floating cylinder and guide pin bushing C are installed on base plate, cylinder piston rod
Hinged with the bottom surface of gripper shoe, guide pillar C is arranged on the bottom surface of gripper shoe, can slide, lathe bed falls to bottom in guide pin bushing C
When on frame, floated with lathe bed and contact in the top of gripper shoe.
In technique scheme, described float support can also adopt following structure, by base plate, air bag and bracing frame group
Become, base plate is connected with foundation, and air bag is installed between base plate and bracing frame, bracing frame when lathe bed falls on underframe
Floated with lathe bed and contact in top.
Present invention also offers a kind of processed using the above-mentioned numerical control gantry drilling and milling machine being applied to the processing of trolley coach underframe
The method of trolley coach underframe, comprises the following steps：
A) trolley coach underframe（Hereinafter referred to as workpiece）Lifting puts in place；
B) lowering or hoisting gear action, main frame rises, and small rail car drives lathe bed, gantry and cross slid platform（Lathe bed, gantry and
Cross slid platform merges and is referred to as main frame, is below not repeated to describe）Along track by start bit movement to the first processing stations；
C) lowering or hoisting gear action, main frame falls to contacting with underframe, and small rail car is raised, gripping means grips；
D) adjustment is installed on the adjustment bolt in underframe adjustment plate, makes adjustment bolt act against the installing rack of clamping device
On transverse slat；
E) adjustment working plate is positioned on the A face of workpiece, straight pin is inserted and inserts in the centre bore in A face, by rhombus pin
Enter two true edges adjusting working plate in the farthest connecting hole of centre bore with centimeter check, positioned by workpiece simultaneously
Device adjusts workpiece with the position relationship of main frame to state to be processed；
F) Workpiece clamping device is by Workpiece clamping；
G) to knife, workpiece coordinate system initial point is found out by A face and centre bore；
H) digital control system carries out Milling Process by program control machine tool action to the B face of workpiece；To workpiece B face after tool changing
Carry out drilling processing；
I) clamping device unclamps, and, by main frame jack-up, main frame is along track movement to the second station for lowering or hoisting gear；
J) repeat above c～h step operation, complete the processing content of workpiece second station；
K) clamping device unclamps, and, by main frame jack-up, main frame is along track movement to original position for lowering or hoisting gear；
L) repeat above a～k step operation, carry out the processing of next workpiece.
The work process of the present invention is as follows：
Work piece hoisting is put in place, so that the left end of workpiece is leaned against on positioner A, the front side of workpiece leans against determining on front side of workpiece
On the device B of position；By adjusting parallels, adjustment workpiece makes it keep level；Then adjust adjustment bolt A of positioner A and determine
Adjustment bolt B of position device B carries out Primary Location to workpiece；Lowering or hoisting gear action, main frame rises, and small rail car is in driving means
Driving under, drive main frame march to the first processing stations along track, lowering or hoisting gear action again, hoist cylinder piston rod contracting
Return, main frame falls, and meanwhile the bracing frame of float support and the bottom surface of lathe bed are adjacent to, and between base plate and bracing frame
Disc spring is compressed, when the upper plane contact of the gripper shoe on the lower plane and underframe of the transverse slat of clamping device, under main frame stops
Fall, but now the piston rod of hoist cylinder is not fully retracted, hoist cylinder piston rod continues to retract, and then pull-up track is little
Car, small rail car departs from track.Clamping device action, clamping cylinder piston rod is retracted and drives clamp to move upwards, until clamp
Upper plane is contacted with gripper shoe lower plane and gripper shoe is held between clamp and transverse slat, and adjustment is installed in underframe adjustment plate
Adjustment bolt, makes adjustment bolt act against on the transverse slat of the installing rack of clamping device；Adjustment working plate is positioned over the A face of workpiece
On, straight pin is inserted and inserts in the farthest connecting hole of centre bore in the centre bore in A face, by rhombus pin, use centimeter check
Two true edges of adjustment working plate, are adjusted the position relationship of workpiece and main frame simultaneously, workpiece are entered by Working piece positioning device
Row positions again to state to be processed；Tighten the hold-down bolt on Workpiece clamping device, workpiece is compressed.By to knife,
Workpiece coordinate system initial point is found out by A face and centre bore, after determining machining benchmark, electrical control gear controls unit head to complete to work
The Milling Process of part first station, completes the drilling processing to workpiece B face again after tool changing；Clamping device action, clamping cylinder is lived
Stopper rod stretches out drive clamp and moves downward, and on clamp, plane and gripper shoe lower plane depart from；Then lowering or hoisting gear action, lifting oil
The piston rod of cylinder stretches out, and small rail car is fallen and contacted with track, and hoist cylinder piston rod continues to stretch out, and main frame is lifted, bed
Body bottom surface is departed from float support, and transverse slat lower plane is departed from plane in gripper shoe.Small rail car is in the driving of driving means
Under, drive main frame to march to the second processing stations along track, lowering or hoisting gear action again, repeats above operating procedure, completes work
The processing content of part second station.Then clamping device action, clamping cylinder piston rod stretches out drive clamp and moves downward, clamp
Upper plane is departed from gripper shoe lower plane.Then lowering or hoisting gear action, the piston rod of hoist cylinder stretches out, and small rail car falls simultaneously
Contact with track, hoist cylinder piston rod continues to stretch out, and main frame is lifted, lathe bed and float support depart from, transverse slat lower plane with
In gripper shoe, plane departs from.Small rail car, under the driving of driving means, drives main frame along track movement to original position.Repeat
Aforesaid operations step, carries out the processing of next workpiece.
The invention has the beneficial effects as follows：
Realize the conversion of station by driving small rail car to move along track using lowering or hoisting gear, can add in effective increase
In the case of work specification of workpieces size, reduce package size, reduce cost, decrease energy resource consumption, saved raw material,
Improve cost performance.In addition employ float support, equalized the stress of equipment, improve reliability during equipment availability
Property, improve machining accuracy.
Brief description
Fig. 1 is the structural representation of trolley coach underframe inversion state.
Fig. 2 is the structural representation of trolley coach underframe sleeper beam.
Fig. 3 is a kind of overlooking the structure diagram of the numerical control gantry drilling and milling machine of present invention application trolley coach underframe processing.
Fig. 4 is a kind of right side structural representation of the numerical control gantry drilling and milling machine of present invention application trolley coach underframe processing.
Fig. 5 is a kind of main structure diagram of the numerical control gantry drilling and milling machine of present invention application trolley coach underframe processing.
Fig. 6 is the enlarged diagram in A portion in Fig. 3.
Fig. 7 is the enlarged diagram in B portion in Fig. 3.
Fig. 8 is the enlarged diagram in C portion in Fig. 3.
Fig. 9 is the enlarged diagram in D portion in Fig. 5.
Figure 10 is the enlarged diagram in E portion in Fig. 3.
Figure 11 is the enlarged diagram in F portion in Figure 10.
Figure 12 is the G direction view in Figure 10.
Figure 13 is the structural representation of clamping device in the present invention.
Figure 14 is the side structure schematic view of middle orbit dolly of the present invention.
Figure 15 is the structural representation of underframe in the present invention.
Figure 16 is the structural representation of float support in the present invention.
Figure 17 is the structural representation of workpiece pressuring clamping device in the present invention.
Figure 18 is the structural representation of positioner A in the present invention.
Figure 19 is the structural representation of positioner B in the present invention.
Figure 20 is the axonometric schematic diagram of adjustment frock.
Figure 21 is the schematic side view of adjustment frock.
In figure：100- small rail car, 101- vehicle frame, 102- driving means, 10201- motor, 10202- reductor,
103- wheel A, 104- wheel B, 105- wheel C, 106- sprocket wheel, 107- chain, 200- underframe, 201- first base anchor, 202-
Gripper shoe, 203- adjustment plate, 204- adjustment bolt, 300- float support, 301- base plate, 302- disc spring, 303- bracing frame, 400-
Workpiece clamping device, 401- pressure rack, 40101- briquetting, 40102- second base anchor, 40103- bearing plate, 402- material-pressing rack,
403- hold-down bolt, 500- Working piece positioning device, 501- adjusts parallels, 502- positioner A, 50201- locating rack A, 50202-
Adjustment bolt A, 503- positioner B, 50301- locating rack B, 50302-T type block, 50303- adjustment bolt B, 600- lathe bed,
The left lathe bed of 601-, the right lathe bed of 602-, tie-beam before 603-, tie-beam after 604-, 605- lowering or hoisting gear, 60501- link,
60502- hoist cylinder, 60503- guide pillar A, 60504- guide pin bushing A, 606- clamping device, 60601- installing rack, 6060101- stands
Plate, 6060102- gusset, 6060103- transverse slat, 60602- clamping cylinder, 60603- guide pin bushing B, 60604- guide pillar B, 60605- press from both sides
Pincers, 607- synchronizer, 60701- gear, 60702- tooth bar, 60703- tooth bar mounting seat, 60704- bearing block, 60705- is same
Step axle, 700- gantry, 800- cross slid platform, 801- slide unit, 802- slide plate, 803- unit head, 900- track, 1000- workpiece,
1100- adjusts frock, and 1101- adjusts working plate, 1102- straight pin, 1103- rhombus pin, 1104- true edge.
Specific embodiment
For the technical characterstic of this programme can be clearly described, below by specific embodiment, and combine accompanying drawing, to the present invention
It is described further.
Embodiment one：
Referring to shown in Fig. 3 to Fig. 5, Fig. 9, a kind of numerical control gantry drilling and milling machine being applied to the processing of trolley coach underframe, including
Lathe bed 600, gantry 700, Workpiece clamping device 400, Working piece positioning device 500, hydraulic power unit and electrical control gear, institute
State gantry 700 and can make X to movement along the guide rail on lathe bed 600, crossbeam is slidably fitted with the cross slid platform 800 along Y-direction movement,
Unit head 803 along Z-direction movement is slidably fitted with cross slid platform 800；Described lathe bed 600 includes left lathe bed 601, right lathe bed
602nd, front tie-beam 603 and rear tie-beam 604, front tie-beam 603 bolt is passed through admittedly in left lathe bed 601, the front end of right lathe bed 602
Even, left lathe bed 601, the rear end of right lathe bed 602 are passed through rear tie-beam 604 bolt and are connected, and constitute integrally-built frame lathe bed；
Gantry 700 is installed on lathe bed 600 by the driving means being installed between gantry 700 and lathe bed 600 and actuating device edge
Line slideway moves；Cross slid platform 800 is made up of slide unit 801, slide plate 802, and slide unit 801 is installed on gantry 700, slide unit 801
It is provided with driving means and actuating device and gantry 700 between, drive the line slideway that slide unit 801 is installed along along gantry 700 to move
Dynamic；It is provided with slide plate 802, unit head 803 is connected with slide plate 802, slide plate 802 and slide unit between unit head 803 and slide unit 801
It is provided with driving means and actuating device between 801, drive slide plate 802 and unit head 803 along the straight line being installed on slide unit 801
Guide rail does vertical direction and moves.Above-mentioned driving means and actuating device are known technology, are such as installed on the servo on lathe bed 600
Motor drives leading screw to rotate, and the screw being installed on gantry 700 is meshed with leading screw, carry driven portal 700 along being installed on lathe bed 600
On line slideway move；Line slideway includes the left line slideway being installed on left lathe bed 601 and is installed on right lathe bed 602
Right line slideway, the left end of gantry beam and right-hand member be respectively equipped with slide block, slide block respectively with left line slideway, right line slideway
It is slidably connected；Set between the driving means of setting and actuating device, slide plate 802 and slide unit 801 between slide unit 801 and gantry 700
The driving means put and actuating device are also similar structures.
Described left lathe bed 601, the bottom at right lathe bed 602 two ends and front tie-beam 603 and rear tie-beam 604 is corresponding distinguishes
It is provided with small rail car 100, small rail car 100 respectively can be along X direction of principal axis in two tracks 900 on being fixed on foundation
Move back and forth；Described Workpiece clamping device 400 and Working piece positioning device 500 are fixed on the ground base between two tracks 900
On plinth；Length direction along workpiece is provided with two processing stations, is respectively arranged with two in the front side of each processing stations and rear side
The individual underframe 200 being fixed on foundation, two underframe 200 of front side be located at front tie-beam 603 outside and respectively with a left side
Lathe bed 601, right lathe bed 602 front end corresponding, two underframe 200 of rear side be located at rear tie-beam 604 outside and respectively with
Left lathe bed 601, right lathe bed 602 rear end corresponding；Described left lathe bed 601, the front end of right lathe bed 602 and corresponding underframe
It is provided with clamping device 606 between 200, set respectively between left lathe bed 601, the rear end of right lathe bed 602 and corresponding underframe 200
It is equipped with clamping device 606.
Referring to Fig. 4, Figure 10 to Figure 12, lowering or hoisting gear 605 and synchronizer 607 are installed between lathe bed and small rail car.
Lowering or hoisting gear 605 includes link 60501, hoist cylinder 60502, guide pin bushing A60504 and guide pillar A60503, connects
Frame 60501 is fixed on the outside of front tie-beam 603, rear tie-beam 604 respectively with bolt, and small rail car 100 is located at link
60501 underface, hoist cylinder 60502 and guide pin bushing A60504 are installed on link 60501, the work of hoist cylinder 60502
Stopper rod rod end is connected with small rail car 100, and guide pillar A60503 is corresponding with guide pin bushing A60504, is installed on small rail car 100, can
Guide pin bushing A60504 slides；
Synchronizer 607 includes gear 60701, tooth bar 60702, tooth bar mounting seat 60703, bearing block 60704, synchronizing shaft
60705, two bearing blocks 60704 are respectively arranged in the rear and front end in left lathe bed 601 outside, turn between two bearing blocks 60704
Being dynamically connected has synchronizing shaft 60705, and the two ends of synchronizing shaft 60705 are separately installed with gear 60701, is meshed with gear 60701
Tooth bar 60702 is installed in tooth bar mounting seat 60703, and tooth bar mounting seat 60703 is installed on small rail car 100.Further,
Described synchronizer 607 also includes the hydraulic proportion valve being correspondingly arranged respectively with hoist cylinder 60502, and hydraulic proportion valve is connected to
Between hoist cylinder 60502 and hydraulic power unit.
Referring to Figure 12, Figure 14, small rail car 100 includes vehicle frame 101, driving means 102 and by from left to right successively
It is rotationally connected with wheel A103, wheel B104 and the wheel C105 on vehicle frame 101, wheel C105 is coaxially installed with sprocket wheel
106, sprocket wheel 106 is connected with the drive sprocket in driving means 102 by chain 107；Described driving means 102 are to be installed on
Motor 10201 on vehicle frame 101 and reductor 10202, described drive sprocket is arranged at the output shaft of reductor 10202
On, the input shaft of reductor 10202 is connected with motor 10201.
Referring to Figure 15, described underframe 200 is connected with foundation by the first base anchor 201, and top is provided with support
Plate 202, one end of gripper shoe 202 protrudes from underframe 200, and the outside that gripper shoe 202 protrudes from underframe 200 one end is provided with adjustment
Plate 203, adjustment plate 203 is provided with adjustment bolt 204；
Referring to Figure 13, described clamping device 606 include installing rack 60601, clamping cylinder 60602, guide pin bushing B60603 and
Guide pillar B60604 and clamp 60605, installing rack 60601 is made up of riser 6060101, gusset 6060102 and transverse slat 6060103,
Installing rack 60601 is passed through riser 6060101 and is connected with lathe bed 600, and clamping cylinder 60602 and guide pin bushing B60603 are installed on installing rack
On 60601 transverse slat 6060103, the piston rod rod end of clamping cylinder 60602 is connected with clamp 60605, and gripper shoe 202 is clamped
Between clamp 60605 and transverse slat 6060103, guide pillar B60604 is corresponding with guide pin bushing B60603, is arranged on clamp 60605,
Can slide in guide pin bushing B60603.
The upper plane of the gripper shoe 202 on underframe 200 in same processing stations is in the same plane.Transverse slat
6060103 lower plane to the upper plane of gripper shoe 202 ultimate range be less than hoist cylinder 60502 stroke.
Referring to Fig. 3, Fig. 7, Fig. 8, Working piece positioning device 500 includes being arranged at the adjustment parallels 501 of workpiece 1000 bottom, if
It is placed in the positioner A502 of workpiece 1000 left end, being arranged at the positioner B503 of workpiece 1000 front side and rear side；
Referring to Figure 18, positioner A502 is by locating rack A50201 and the adjustment bolt being arranged on locating rack A50201
A50202 forms, and locating rack A50201 is connected with foundation；
Referring to Figure 19, positioner B503 is made up of locating rack B50301, T-shaped piece 50302 and adjustment bolt B50303, fixed
Position frame B50301 is connected with foundation, and locating rack B50301 is provided with T-shaped piece of mounting groove, T-shaped piece 50302 be installed on T-shaped
In block mounting groove, adjustment bolt B50303 is arranged on T-shaped piece 50302.
Referring to Figure 17, Workpiece clamping device 400 includes material-pressing rack 402, hold-down bolt 403 and pressure rack 401, pressure rack 401 by
Second base anchor 40102, briquetting 40101 and bearing plate 40103 form, and the second base anchor 40102 is connected with foundation, pressure
Block 40101 is connected with the second base anchor 40102 with the lower end of bearing plate 40103, and hold-down bolt 403 passes through on material-pressing rack 402
Through hole be connected with the upper end of bearing plate 40103, the side of material-pressing rack 402 is pressed on briquetting 40101, and opposite side is pressed in workpiece
On 1000.
Referring to Fig. 5, left lathe bed 601, the bottom of right lathe bed 602 are respectively arranged with two float supports 300.
Referring to Figure 16, float support 300 includes base plate 301, disc spring 302 and bracing frame 303, base plate 301 and foundation
It is connected, between the bottom of bracing frame 303 and base plate 301, is provided with disc spring 302, lathe bed 600 falls to the gripper shoe on underframe 200
When on 202, floated with lathe bed 600 and contact in the top of bracing frame 303.
Embodiment two：
A kind of numerical control gantry drilling and milling machine being applied to the processing of trolley coach underframe, its lowering or hoisting gear 605 adopts following structure,
Including link, motor, reductor, diverter, leading screw, screw, guide pin bushing A and guide pillar A, link is respectively fixedly connected with front company
Connect beam, the outside of rear tie-beam, diverter and guide pin bushing A are installed on link, and guide pillar A is corresponding with guide pin bushing A, is installed on track
On dolly, can slide in guide pin bushing A；Motor and reductor are installed on lathe bed, reductor input shaft and motor phase
Even, output shaft is connected with connecting rod, and diverter input is connected with connecting rod, and outfan is connected with leading screw, screw and leading screw phase
Cooperation, is installed on small rail car.Remaining structure is with embodiment one.
Embodiment three：
A kind of numerical control gantry drilling and milling machine being applied to the processing of trolley coach underframe, its float support 300 adopts following structure,
It is made up of base plate, floating cylinder, gripper shoe, guide pin bushing C and guide pillar C, base plate is connected with foundation, floating cylinder and guide pin bushing C
It is installed on base plate, cylinder piston rod is hinged with the bottom surface of gripper shoe, guide pillar C is arranged on the bottom surface of gripper shoe, can be
Slide in guide pin bushing C, when lathe bed falls on underframe, floated with lathe bed and contact in the top of gripper shoe.Remaining structure is with embodiment one.
Example IV：
A kind of numerical control gantry drilling and milling machine being applied to the processing of trolley coach underframe, its float support 300 adopts following structure,
It is made up of base plate, air bag and bracing frame, base plate is connected with foundation, air bag is installed between base plate and bracing frame, lathe bed
When falling on underframe, floated with lathe bed and contact in the top of bracing frame.Remaining structure is with embodiment one.
Embodiment five：
A kind of numerical control gantry drilling and milling machine processing trolley coach bottom being applied to the processing of trolley coach underframe using embodiment one
The method of frame, comprises the following steps：
A) trolley coach underframe（Hereinafter referred to as workpiece 1000）Lifting puts in place；
B) lowering or hoisting gear 60501 action, main frame rises, and small rail car 100 drives lathe bed 600, gantry 700 and cross to slide
Platform 800（Lathe bed 600, gantry 700 and cross slid platform 800 merge and are referred to as main frame, are below not repeated to describe）Along track 900 by
Beginning displacement is moved to the first processing stations；
C) lowering or hoisting gear 605 action, main frame falls to contacting with underframe 200, and small rail car 100 is raised, clamping device 606
Clamping；
D) adjustment is installed on the adjustment bolt 204 in underframe 200 adjustment plate 203, makes adjustment bolt 204 act against clamping dress
On the transverse slat 6060103 of the installing rack 60601 putting 606；
E) adjustment working plate 1101 is positioned on the A face of workpiece 1000, straight pin 1102 is inserted the centre bore in A face
In, rhombus pin 1103 is inserted in the farthest connecting hole of centre bore, adjust two bases of working plate 1101 with centimeter check
Quasi- side 1104, adjusts workpiece 1000 with the position relationship of main frame to state to be processed by Working piece positioning device 500 simultaneously；
F) workpiece 1000 is clamped by Workpiece clamping device 400；
G) to knife, workpiece coordinate system initial point is found out by the A face on workpiece 1000 and centre bore；
H) digital control system carries out Milling Process by program control machine tool action to the B face of workpiece 1000；To work after tool changing
Part B face carries out drilling processing；
I) clamping device 606 unclamps, and main frame jack-up, main frame are moved to the second station by lowering or hoisting gear 605 along track 900；
J) repeat above c～h step operation, complete the processing content of workpiece second station；
K) clamping device 606 unclamps, and main frame jack-up, main frame are moved to start bit by lowering or hoisting gear 60501 along track 900
Put；
L) repeat above a～k step operation, carry out the processing of next workpiece.
Claims (16)
1. a kind of be applied to trolley coach underframe processing numerical control gantry drilling and milling machine, including lathe bed, gantry, Workpiece clamping device,
Working piece positioning device, hydraulic power unit and electrical control gear, X can be made to movement, dragon along the guide rail on lathe bed in described gantry
Cross slid platform along Y-direction movement is slidably fitted with door crossbeam, cross slid platform is slidably fitted with the unit head along Z-direction movement,
It is characterized in that：Described lathe bed includes left lathe bed, right lathe bed, front tie-beam and rear tie-beam, and left lathe bed, the front end of right lathe bed lead to
Cross front tie-beam to be connected, left lathe bed, the rear end of right lathe bed pass through rear tie-beam and be connected；Under described left lathe bed, right lathe bed two ends
Portion, corresponding to front tie-beam and rear tie-beam and be located at outside front tie-beam and rear tie-beam to be respectively arranged below with track little
Car, small rail car can move back and forth along X direction of principal axis in two tracks on being fixed on foundation respectively；Described workpiece
Clamping device and Working piece positioning device are fixed on the foundation between two tracks；Length direction along workpiece is provided with least
Two processing stations, are respectively arranged with two underframe being fixed on foundation in the front side of each processing stations and rear side,
Two underframe of front side are positioned at the outside of front tie-beam and corresponding with the front end of left lathe bed, right lathe bed respectively, two of rear side
Underframe is positioned at the outside of rear tie-beam and corresponding with the rear end of left lathe bed, right lathe bed respectively；Described left lathe bed, right lathe bed
It is provided with clamping device between front end and corresponding underframe, divide between left lathe bed, the rear end of right lathe bed and corresponding underframe
It is not provided with clamping device.
2. a kind of numerical control gantry drilling and milling machine being applied to the processing of trolley coach underframe according to claim 1, its feature exists
In：Lowering or hoisting gear and synchronizer are installed between described lathe bed and small rail car.
3. a kind of numerical control gantry drilling and milling machine being applied to the processing of trolley coach underframe according to claim 2, its feature exists
In：Described lowering or hoisting gear includes link, hoist cylinder, guide pin bushing A and guide pillar A, link be respectively fixedly connected with front tie-beam, after connect
Connect the outside of beam, hoist cylinder and guide pin bushing A are installed on link, the piston rod rod end of hoist cylinder is connected with small rail car,
Guide pillar A is corresponding with guide pin bushing A, is installed on small rail car, can slide in guide pin bushing A；
Described synchronizer includes gear, tooth bar, tooth bar mounting seat, bearing block, synchronizing shaft, and two bearing blocks are respectively arranged in a left side
Rear and front end outside lathe bed, is rotatably connected to synchronizing shaft between two bearing blocks, the two ends of synchronizing shaft are separately installed with gear,
The tooth bar being meshed with gear is installed in tooth bar mounting seat, and tooth bar mounting seat is installed on small rail car.
4. a kind of numerical control gantry drilling and milling machine being applied to the processing of trolley coach underframe according to claim 3, its feature exists
In：Described synchronizer also includes the hydraulic proportion valve being correspondingly arranged respectively with hoist cylinder, and hydraulic proportion valve is connected to lifting
Between oil cylinder and hydraulic power unit.
5. a kind of numerical control gantry drilling and milling machine being applied to the processing of trolley coach underframe according to claim 2, its feature exists
In：Described lowering or hoisting gear includes link, motor, reductor, diverter, leading screw, screw, guide pin bushing A and guide pillar A, connects
Frame is respectively fixedly connected with the outside of front tie-beam, rear tie-beam, and diverter and guide pin bushing A are installed on link, guide pillar A and guide pin bushing A
Corresponding, it is installed on small rail car, can slide in guide pin bushing A；Motor and reductor are installed on lathe bed, and reductor is defeated
Enter that axle is connected with motor, output shaft is connected with connecting rod, diverter input is connected with connecting rod, and outfan is connected with silk
Thick stick, screw is matched with leading screw, is installed on small rail car.
6. a kind of numerical control gantry drilling and milling machine being applied to the processing of trolley coach underframe according to claim 1, its feature exists
In：Described small rail car includes vehicle frame, driving means and by the wheel being from left to right rotationally connected with successively on vehicle frame
A, wheel B and wheel C, wheel C is coaxially installed with sprocket wheel, and sprocket wheel is connected with the drive sprocket in driving means by chain；
Described driving means are the motor and speed reducer being installed on vehicle frame, and described drive sprocket is arranged at the output of reductor
On axle, the input shaft of reductor is connected with motor.
7. a kind of numerical control gantry drilling and milling machine being applied to the processing of trolley coach underframe according to claim 1, its feature exists
In：Described underframe is connected with foundation by the first base anchor, and top is provided with gripper shoe, and one end of gripper shoe protrudes from
Underframe, the outside that gripper shoe protrudes from underframe one end is provided with adjustment plate, and adjustment plate is provided with adjustment bolt；
Described clamping device includes installing rack, clamping cylinder, guide pin bushing B, guide pillar B and clamp, and installing rack is by riser, gusset and horizontal stroke
Plate forms, and installing rack is passed through riser and is connected with lathe bed, and clamping cylinder and guide pin bushing B are installed on the transverse slat of installing rack, clamping cylinder
Piston rod rod end and clamp be connected, gripper shoe is held between clamp and transverse slat, guide pillar B is corresponding with guide pin bushing B, is arranged on
On clamp, can slide in guide pin bushing B.
8. a kind of numerical control gantry drilling and milling machine being applied to the processing of trolley coach underframe according to claim 2, its feature exists
In：Described underframe is connected with foundation by the first base anchor, and top is provided with gripper shoe, and one end of gripper shoe protrudes from
Underframe, the outside that gripper shoe protrudes from underframe one end is provided with adjustment plate, and adjustment plate is provided with adjustment bolt；
Described clamping device includes installing rack, clamping cylinder, guide pin bushing B, guide pillar B and clamp, and installing rack is by riser, gusset and horizontal stroke
Plate forms, and installing rack is passed through riser and is connected with lathe bed, and clamping cylinder and guide pin bushing B are installed on the transverse slat of installing rack, clamping cylinder
Piston rod rod end and clamp be connected, gripper shoe is held between clamp and transverse slat, guide pillar B is corresponding with guide pin bushing B, is arranged on
On clamp, can slide in guide pin bushing B.
9. a kind of numerical control gantry drilling and milling machine being applied to the processing of trolley coach underframe according to claim 7 or 8, its feature
It is：The upper plane of the gripper shoe on underframe in same processing stations is in the same plane.
10. a kind of numerical control gantry drilling and milling machine being applied to the processing of trolley coach underframe according to claim 1, its feature exists
In：Described Working piece positioning device includes the adjustment parallels being arranged at workpiece bottom, is arranged at the positioner A of workpiece left end, sets
It is placed in the positioner B with rear side on front side of workpiece；
Described positioner A is made up of locating rack A and adjustment bolt A that is arranged on locating rack A, locating rack A and foundation
It is connected；
Described positioner B is made up of locating rack B, T-shaped piece and adjustment bolt B, and locating rack B is connected with foundation, positioning
Frame B is provided with T-shaped piece of mounting groove, and T-shaped piece is installed in T-shaped piece of mounting groove, and adjustment bolt B is arranged on T-shaped piece.
A kind of 11. numerical control gantry drilling and milling machines being applied to the processing of trolley coach underframe according to claim 1, its feature exists
In：Described Workpiece clamping device includes material-pressing rack, hold-down bolt and pressure rack, and pressure rack is by the second base anchor, briquetting and bearing plate group
Become, the second base anchor is connected with foundation, and briquetting is connected with the second base anchor with the lower end of bearing plate, and hold-down bolt is worn
The through hole crossed on material-pressing rack is connected with the upper end of bearing plate, and the side of material-pressing rack is pressed on briquetting, and opposite side is pressed on workpiece.
A kind of 12. numerical control gantry drilling and milling machines being applied to the processing of trolley coach underframe according to claim 2, its feature exists
In：The bottom of front-end and back-end of described left lathe bed, the bottom of the front-end and back-end of right lathe bed are each provided with a floating respectively
Support, totally 4 float supports.
A kind of 13. numerical control gantry drilling and milling machines being applied to the processing of trolley coach underframe according to claim 12, its feature
It is：Described float support includes base plate, disc spring and bracing frame, and base plate is connected with foundation, the bottom of bracing frame and bottom
It is provided with disc spring, when lathe bed falls on underframe, floated with lathe bed and contact in the top of bracing frame between plate.
A kind of 14. numerical control gantry drilling and milling machines being applied to the processing of trolley coach underframe according to claim 12, its feature
It is：Described float support is made up of base plate, floating cylinder, gripper shoe, guide pin bushing C and guide pillar C, and base plate is connected with foundation
Connect, floating cylinder and guide pin bushing C are installed on base plate, the cylinder piston rod of floating cylinder is hinged with the bottom surface of gripper shoe, guide pillar C
It is arranged on the bottom surface of gripper shoe, can slide in guide pin bushing C, when lathe bed falls on underframe, the top of gripper shoe and lathe bed float
Dynamic contact.
A kind of 15. numerical control gantry drilling and milling machines being applied to the processing of trolley coach underframe according to claim 12, its feature
It is：Described float support is made up of base plate, air bag and bracing frame, and base plate is connected with foundation, and air bag is installed on base plate
And bracing frame between, when lathe bed falls on underframe, floated with lathe bed and contact in the top of bracing frame.
A kind of number being applied to the processing of trolley coach underframe described in a kind of 16. any one claim using claim 1-15
Control gantry drilling and milling machine process trolley coach underframe method it is characterised in that：Comprise the following steps：
A) trolley coach underframe（Hereinafter referred to as workpiece）Lifting puts in place；
B) lowering or hoisting gear action, main frame rises, and small rail car drives lathe bed, gantry and cross slid platform（Lathe bed, gantry and cross
Slide unit merges and is referred to as main frame, is below not repeated to describe）Along track by start bit movement to the first processing stations；
C) lowering or hoisting gear action, main frame falls to contacting with underframe, and small rail car is raised, gripping means grips；
D) adjustment is installed on the adjustment bolt in underframe adjustment plate, makes adjustment bolt act against the transverse slat of the installing rack of clamping device
On；
E) by adjustment working plate be positioned on the A face of workpiece, by straight pin insert A face centre bore in, by rhombus pin insertion away from
In the farthest connecting hole of centre bore, adjust two true edges of working plate with centimeter check, pass through Working piece positioning device simultaneously
The position relationship of adjustment workpiece and main frame is to state to be processed；
F) Workpiece clamping device is by Workpiece clamping；
G) to knife, workpiece coordinate system initial point is found out by A face and centre bore；
H) digital control system carries out Milling Process by program control machine tool action to the B face of workpiece；After tool changing, workpiece B face is carried out
Drilling is processed；
I) clamping device unclamps, and, by main frame jack-up, main frame is along track movement to the second station for lowering or hoisting gear；
J) repeat above c～h step operation, complete the processing content of workpiece second station；
K) clamping device unclamps, and, by main frame jack-up, main frame is along track movement to original position for lowering or hoisting gear；
L) repeat above a～k step operation, carry out the processing of next workpiece.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510131139.4A CN104723039B (en) | 2015-03-25 | 2015-03-25 | A kind of numerical control gantry drilling and milling machine being applied to the processing of trolley coach underframe and its processing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510131139.4A CN104723039B (en) | 2015-03-25 | 2015-03-25 | A kind of numerical control gantry drilling and milling machine being applied to the processing of trolley coach underframe and its processing method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104723039A CN104723039A (en) | 2015-06-24 |
| CN104723039B true CN104723039B (en) | 2017-03-01 |
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| CN104858660B (en) * | 2015-06-02 | 2017-04-05 | 济南天辰铝机股份有限公司 | A kind of numerical control gantry drilling and milling machine with foundation as workbench |
| CN104858670A (en) * | 2015-06-02 | 2015-08-26 | 济南天辰铝机股份有限公司 | Transversely-moving hydraulic lifting mechanism of bed body with moving beam type gantry |
| CN104858669B (en) * | 2015-06-02 | 2017-06-06 | 济南天辰铝机股份有限公司 | Traversing, the screw lifting mechanism of the lathe bed with movable beam type gantry |
| CN109834474B (en) * | 2019-03-29 | 2023-09-15 | 中信戴卡股份有限公司 | Hub tooling positioning fixture |
| CN110480393A (en) * | 2019-07-10 | 2019-11-22 | 江苏苏美达车轮有限公司 | A kind of device and processing method of wheel Milling Process fine positioning |
| CN113458726B (en) * | 2021-06-29 | 2023-08-29 | 江苏兴达钢帘线股份有限公司 | Machining method for removing micro-deformation of robot travelling mechanism |
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