CN109967793A - A kind of particularly serious structural member sawing equipment and its sawing method - Google Patents
A kind of particularly serious structural member sawing equipment and its sawing method Download PDFInfo
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- CN109967793A CN109967793A CN201910181622.1A CN201910181622A CN109967793A CN 109967793 A CN109967793 A CN 109967793A CN 201910181622 A CN201910181622 A CN 201910181622A CN 109967793 A CN109967793 A CN 109967793A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
- B23D55/00—Sawing machines or sawing devices working with strap saw blades, characterised only by constructional features of particular parts
- B23D55/06—Sawing machines or sawing devices working with strap saw blades, characterised only by constructional features of particular parts of drives for strap saw blades; of wheel mountings
- B23D55/065—Sawing machines or sawing devices working with strap saw blades, characterised only by constructional features of particular parts of drives for strap saw blades; of wheel mountings of wheels
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
- B23D55/00—Sawing machines or sawing devices working with strap saw blades, characterised only by constructional features of particular parts
- B23D55/08—Sawing machines or sawing devices working with strap saw blades, characterised only by constructional features of particular parts of devices for guiding or feeding strap saw blades
- B23D55/082—Devices for guiding strap saw blades
- B23D55/084—Devices for guiding strap saw blades which automatically detect or correct band saw blade deflection
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- Mechanical Engineering (AREA)
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Abstract
The invention discloses a kind of particularly serious structural member sawing equipment and its sawing methods.The band saw wheel that the two-wheeled sawing machine of sawing large-sized structural parts needs fit dimension very big, which greatly enhances production costs.A kind of particularly serious structural member sawing equipment of the present invention, including rack, three-wheel saw cutting mechanism, feeding hydraulic cylinder, workbench, guiding deviation correction mechanism, workbench and clamping assembly.Three-wheel saw cutting mechanism includes saw frame, active bandsaw wheel, saw band, intermediate band saw wheel and driven band saw wheel.Guiding deviation correction mechanism includes guide pad, correction movable plate, correction swings worm screw, rectifying a deviation swings worm gear, correction actuator and torsion motor.Workbench includes oscillating table, mobile station, traversing actuator, swing spring, swing spring and oscillating cylinder.Traditional two band saw wheel drive mechanisms are changed to three band saw wheel drive mechanisms by the present invention, overcome the defect that the necessary saw band wheel diameter of conventional two band saw wheel sawing machines is greater than diameter of work, machine volume and height is greatly reduced.
Description
Technical field
The invention belongs to intelligent Manufacturing Technology fields, and in particular to a kind of large-sized numerical control for the processing of particularly serious structural member
Sawing equipment and its sawing method.
Background technique
It at Important Project scene, needs to carry out cutting processing in welding and installation there are many large-sized structural parts, lack at present
Few scene Cutting indexes equipment, often using traditional approach such as gas cutting and hand cuts, therefore that there are cutting accuracies is low, material is unrestrained
The main problems such as Fei great, cutting efficiency be low.How in Important Project scene reduction waste of material, raising cutting accuracy and efficiency?
It is the Cutting indexes industry developing direction of effort for it always.Therefore, it is highly desirable provide it is a kind of for Important Project scene
Large-sized numerical control band saw cut is equipped.
In recent years, being constantly progressive and develop, the Cutting indexes technology of large parts with numerical control saw cutting equipment technology
It has a big promotion, from traditional cutting processing mode, the excessive experience for relying on operator and horizontal completion processing, turns to
The automation such as compound sawing, digital control and personalized Cutting indexes, integrated, precision, enlargement, personalization and high efficiency
Direction promote and development.Cutting is carried out in welding and installation for many large-sized structural parts at Important Project scene to add
Work lacks live Cutting indexes equipment, it is low, golden to cause cutting accuracy often using traditional approach such as gas cutting and hand cuts
Belong to the main problems such as raw materials consumption is big and processing efficiency is low.
Conventional two-wheeled sawing machine needs to meet sawing depth less than saw band wheel diameter, otherwise, work in sawing in sawing
Part will touch the saw band above band saw wheel.Therefore, the two-wheeled sawing machine of sawing large forgings and casting needs fit dimension
Very huge band saw wheel, this makes the size of sawing machine become huge, substantially increases production cost.Meanwhile for big swaged forging
The integral cutting of part and casting, sawing depth is big, saw band cutting in easily wander off and deform, and chip breaking and chip removal are difficult, hold
It easily causes cutting area to overheat, reduces band saw service life.
Summary of the invention
The present invention for lacking the urgent of actual conditions that Important Project scene equip with saw cut and Important Project at present
It is essential and asks, a kind of Important Project scene band saw cut equipment and its sawing method are provided.
A kind of particularly serious structural member sawing equipment of the present invention, including rack, three-wheel saw cutting mechanism, feeding hydraulic cylinder, work
Make platform, guiding deviation correction mechanism, workbench and clamping assembly.The three-wheel saw cutting mechanism includes saw frame, active bandsaw wheel, saw
Band, intermediate band saw wheel and driven band saw wheel.The saw frame and rack constitutes sliding pair, and is driven by feeding hydraulic cylinder.Institute
Active bandsaw wheel, intermediate band saw wheel and the driven band saw wheel stated are supported on saw frame.Active bandsaw wheel and driven band saw wheel etc.
High setting.Intermediate band saw wheel is located at the top of active bandsaw wheel Yu driven band saw wheel line midpoint.Active bandsaw wheel, intermediate saw band
Wheel, driven band saw wheel are connected by saw band.
The guiding deviation correction mechanism includes guide pad, correction movable plate, correction swings worm screw, correction swings worm gear, entangles
Inclined actuator and torsion motor.Correction movable plate and rack constitute sliding pair.Correction movable plate is driven by correction actuator.Correction
It swings worm screw and correction swings worm gear and is supported on correction movable plate.Correction swings worm screw and engages with correction swing worm gear.It leads
Worm gear is swung with correction to block to fix.The bottom of guide pad offers guide slit.Saw band passes through the guide slit of guide pad.
The workbench includes oscillating table, mobile station, traversing actuator, swing spring, swing spring and oscillating cylinder.
Mobile station and rack constitute sliding pair, and are driven by traversing actuator.The oscillating table and mobile station constitutes revolute pair.It swings
The both ends of spring are separately connected with oscillating table, mobile station.Sliding slot is offered on oscillating table.The cylinder body of oscillating cylinder is fixed on movement
On platform.The piston rod outer end of oscillating cylinder is fixed with straight pin.Straight pin is arranged in the sliding slot of oscillating table.It is installed on oscillating table
There is clamping assembly.
Further, in the three-wheel saw cutting mechanism, the diameter of active bandsaw wheel and driven band saw wheel is d1.It is intermediate
The diameter of band saw wheel is d2.It is D by the diameter of sawing workpieces or maximum dimension.d1、d2, D simultaneously meet formula (1), (2),
(3)。
α1=270 ° of-β1-β2>=140 ° of formulas (3)
In formula (1) and (2), δ1For transverse safety distance, value range is 0.3D≤δ1≤0.5D。δ2For longitudinal safety
Distance, value range are δ2≥50mm。
In formula (3), α1It is saw band to the cornerite of active bandsaw wheel and driven band saw wheel, β1And β2It is intermediate variable, value
It is found out respectively according to formula (1), formula (2).
Further, the clamping assembly includes V-type locating piece, gripping block, clamping cylinder and clamp base.V-type is fixed
Position block and clamp base are fixed on oscillating table.Positioning V-shaped groove is offered at the top of V-type locating piece.Gripping block and clamp base
Constitute sliding pair.The cylinder body of clamping cylinder is fixed with gripping block.The piston rod of clamping cylinder is fixed with clamp base.Gripping block is leaned on
Inclination clamping inclined-plane directed downwardly is provided on the end face of nearly V-type locating piece.
Further, the correction movable plate and rack be parallel to active band saw wheel at the relative direction of sliding pair
Axis.The correction swings axis of the axis perpendicular to active band saw wheel of worm gear.
Further, there are two the guiding deviation correction mechanism is total to.Two guiding deviation correction mechanisms are arranged at active band saw
Between wheel and driven band saw wheel, and respectively close to active bandsaw wheel, driven band saw wheel.
Further, the correction actuator includes rectifying screw and correction motor.Rectifying screw is supported on saw frame,
And by correction motor driven.The nut and rectifying screw being fixed on correction movable plate constitute screw pair.
Further, the traversing actuator includes mobile lead screw and the traversing motor of workbench.The mobile lead screw
It is supported on base, and by the traversing motor driven of workbench.The nut and mobile lead screw for being fixed on mobile station bottom constitute spiral
It is secondary.
Further, there are two the feeding hydraulic cylinder is total to.Two feeding hydraulic cylinder centerings are arranged on base.
It feeds hydraulic cylinder and uses double-outlet cylinder.The piston rod of feeding hydraulic cylinder is fixed with rack.Feed the cylinder body of hydraulic cylinder
It is fixed with saw frame.
The sawing method of the particularly serious structural member sawing equipment is specific as follows:
Step 1: by clamping workpiece to clamping assembly.
Step 2: traversing actuator driving workpiece is mobile, so that workpiece is directed at saw band to sawing spot.
Step 3: active bandsaw wheel drives saw band movement, the main motion of sawing is realized.
Step 4: feeding hydraulic cylinder drives saw frame to slide to workpiece, the feed motion of sawing is realized.Oscillating cylinder has
Rod cavity, rodless cavity continue alternately to ventilate so that oscillating cylinder is persistently converted in release and retraction, and then drive workpiece continue into
Row is swung up and down, and realizes chip breaking and chip removal in sawing process.
When the sawing direction of saw band wanders off, correction actuator driving correction movable plate is moved forward and backward, and is guided
Block drives saw band to deviate to preset sawing direction.When saw band twist deform when, torsion motor rotation, drive bootstrap block
It rotates, and then squeezes saw band, so that saw band side is restored to vertical state.
The invention has the advantages that:
1, traditional two band saw wheel drive mechanisms are changed to three band saw wheel drive mechanisms by the present invention, overcome conventional two saw bands
The defect that the necessary saw band wheel diameter of sawing machine is greater than diameter of work is taken turns, machine volume and height is greatly reduced.
2, the present invention is given by three band saw wheel drive mechanisms, the condition met needed for each geometric parameter, and then is being protected
Under the premise of card can complete sawing, and saw band is not easy skidding, realize that the present invention minimizes as far as possible.
3, the guiding deviation correction mechanism in the present invention can make saw band generate the fine motion of two freedom degrees of rotation and translation, reach
Saw band correction purpose, realizes the error compensation in sawing process.
4, the present invention is by swinging workbench, chip breaking and chip removal in promotion sawing process, and then cutting area is avoided to overheat,
Improve band saw service life.
Detailed description of the invention
Fig. 1 is front schematic view of the invention；
Fig. 2 is the cross-sectional view of Section A-A in Fig. 1；
Fig. 3 is the schematic diagram that deviation correction mechanism is oriented in the present invention；
Fig. 4 is the frontal design figure of three-wheel saw cutting mechanism in the present invention；
Fig. 5 is the parametric geometry relation schematic diagram of three-wheel saw cutting mechanism in the present invention.
Specific embodiment
Below in conjunction with attached drawing, the invention will be further described.
As shown in Figure 1, a kind of particularly serious structural member sawing equipment, including rack 1, guide upright post 2, three-wheel saw cutting mechanism,
Feed hydraulic cylinder 5, base 16, workbench, guiding deviation correction mechanism, workbench, clamping assembly and controller.Rack 1 is fixed on
On base 16.Two guide upright posts 2 are each attached on rack 1 and base 16.Three-wheel saw cutting mechanism includes saw frame 3, active band saw
Wheel 4, saw band 6, intermediate band saw wheel 7 and driven band saw wheel 8.Saw frame 3 and two guide upright posts 2 constitute sliding pair.Two feeding liquid
5 centering of compressing cylinder is arranged on base 16.It feeds hydraulic cylinder 5 and uses double-outlet cylinder.Feed 5 upper piston rod of hydraulic cylinder
Both ends are fixed respectively with rack 1, base 16.Cylinder body and the saw frame 3 for feeding hydraulic cylinder 5 are fixed.Active bandsaw wheel 4, intermediate saw
Belt wheel 7 and driven band saw wheel 8 are supported on saw frame 3.The high settings such as active bandsaw wheel 4 and driven band saw wheel 8.Intermediate band saw wheel
7 are located at the surface at the midpoint of active bandsaw wheel 4 and driven 8 central point line of band saw wheel.Active bandsaw wheel 4 is by sawing power electric
Machine driving.Active bandsaw wheel 4, intermediate band saw wheel 7, driven band saw wheel 8 are connected by saw band 6.
As shown in Figure 1,2 and 3, guiding deviation correction mechanism includes guide pad 9, correction movable plate 10, guide rod 11, correction swing
Worm screw 13, correction swing worm gear 14, worm gear shaft 15, correction actuator and torsion motor.Two guide rods 11 are each attached to saw frame 3
On.The axis of guide rod 11 axis with active bandsaw wheel 4 in parallel.Correction movable plate 10 and two guide rods 11 are constituted and are slided
It is secondary.Correction actuator includes rectifying screw 12 and correction motor.Rectifying screw 12 is supported on saw frame 3.It is fixed on correction movement
Nut and rectifying screw 12 on plate 10 constitute screw pair, to realize correction the moving along band saw wheel axis direction of movable plate 10
It adjusts.Correction motor is fixed on saw frame 3, and output shaft and one end of rectifying screw 12 are fixed.Correction swings worm screw 13 and snail
Wheel shaft 15 is supported on correction movable plate 10, and axis is mutually perpendicular to.The axis of worm gear shaft 15 is perpendicular to rectifying screw 12
Axis.Correction swings worm gear 14 and is fixed on worm gear shaft 15.Correction swings worm screw 13 and engages with correction swing worm gear 14.Guide pad
9 is fixed with worm gear shaft 15.The bottom of guide pad 6 offers guide slit.Two guiding deviation correction mechanisms are arranged at active bandsaw wheel
Between the lower edge of driven band saw wheel.Two guiding deviation correction mechanisms are respectively close to active bandsaw wheel, driven band saw wheel.Saw band is worn
Cross the guide slit of guide pad 9 in two guiding deviation correction mechanisms.The side of saw band between two guide pads 9 is parallel to guide upright post
2 axis, the part saw band carry out sawing.
Workbench includes bearing block 18, oscillating table 19, mobile station 20, traversing actuator, swing spring 23, swing spring
23, moving guide rail 26 and oscillating cylinder 27.Two moving guide rails 26 are each attached on base 16.The axis of moving guide rail 26 is parallel
In the axis of active bandsaw wheel.Mobile station 20 and two moving guide rails 26 constitute sliding pair.Traversing actuator includes mobile lead screw
22 and the traversing motor of workbench.Mobile lead screw 22 is supported on base 16.It is fixed on the nut and mobile lead screw of mobile station bottom
22 constitute screw pair.The traversing motor of workbench is fixed on base 16, and one end of output shaft and mobile lead screw 22 is fixed.Bearing
Seat 18 is fixed in mobile station 20.One end of oscillating table 19 and bearing block 18 constitute revolute pair.Between oscillating table 19 and mobile station 20
Every setting.Swing spring 23 is between oscillating table 19 and mobile station 20, and both ends are respectively held against oscillating table 19, mobile station 20.
Sliding slot is offered on oscillating table 19.Axis of the length direction of sliding slot perpendicular to 18 inner bearing of bearing block.The cylinder of oscillating cylinder 27
Body is fixed in mobile station 20.The piston rod outer end of oscillating cylinder 27 is fixed with straight pin.Oscillating table 19 is arranged in straight pin
In sliding slot.The release or retraction of oscillating cylinder 27 swing driving oscillating table 19 around bearing block 18.
Clamping assembly includes V-type locating piece 17, gripping block 24, clamping cylinder 25 and clamp base.V-type locating piece 17 and folder
Tight pedestal is fixed on oscillating table.The top of V-type locating piece 17 offers positioning V-shaped groove.Gripping block 24 and clamp base are constituted
Sliding pair.The cylinder body and gripping block 24 of clamping cylinder 25 are fixed.The piston rod of clamping cylinder 25 is fixed with clamp base.Gripping block
24 are provided with inclination clamping inclined-plane directed downwardly on the end face of V-type locating piece 17.The spatial position of gripping block 24 is fixed higher than V-type
Position block 17.When clamping cylinder 25 is released, the clamping inclined-plane in gripping block 24 can be resisted by sawing workpieces 21, to realize work
The clamping of part.
The hydraulic control interface of controller is connect with feeding hydraulic cylinder 5 by reversal valve.Four motor controls of controller
Interface processed and sawing power motor, the traversing motor of workbench, correction motor, torsion motor are connected by motor servo driver respectively
It connects.Two cylinder control interfaces of controller are connect by reversal valve respectively with oscillating cylinder 27, clamping cylinder 25.
The design requirement of three-wheel saw cutting mechanism is as follows:
The frontal design schematic diagram of three-wheel saw cutting mechanism is as shown in figure 4, in figure, d1For active band saw wheel and driven band saw wheel
Diameter, d2For the diameter of intermediate band saw wheel, D is by the diameter of sawing workpieces or maximum dimension, δ1For transverse safety distance
(it indicates edge of work minimum value at a distance from active band saw wheel and driven band saw wheel edge in sawing process), δ2For longitudinal peace
Full distance (it indicates that the edge of work is at a distance from intermediate band saw wheel edge when workpiece is cut off).α1It is saw band to active band saw wheel
And the cornerite of driven band saw wheel.α2It is saw band to the cornerite of intermediate band saw wheel and driven band saw wheel.M is active band saw wheel and centre
The length of that section of saw band between band saw wheel, value and the line segment AE in Fig. 5 are isometric.Driven band saw wheel center and active band saw wheel
Center is away from for (d1-D)/2+δ1；L is the center of active band saw wheel and intermediate band saw wheel away from L=(d2-d1)/2+D+δ2.Actively saw
The intermediate heart of belt wheel and driven band saw wheel is (d at a distance from intermediate band saw wheel center2-d1)/2+D+δ2。
From fig. 4, it can be seen that α1=270 ° of-β1-β2；γ1For β1Complementary angle, γ2For β2Complementary angle.In Fig. 5, point A is Fig. 4
In intermediate band saw wheel central point.Point B is the intermediate point of the active band saw wheel and driven band saw wheel in Fig. 4 (in line
Point).Point C is the central point of the active band saw wheel in Fig. 4.Point E point C and active band saw wheel, saw band the tangent line on, and
Line segment AE is perpendicular to line segment CE.Since that section of saw band between active band saw wheel, intermediate band saw wheel is parallel and equal with line segment AE,
Therefore the length of line segment CE is (d1-d2)/2。
From fig. 5, it can be seen that
In order to reduce the volume and height of complete machine, 0.3D≤δ is generally taken1≤ 0.5D, δ2≥50mm.Band saw is beaten in order to prevent
It is sliding, generally require the wrap angle sigma of principal and subordinate's band saw wheel1≥140°。
The optimization calculating process for being illustrated with three-wheel saw cutting mechanism is as follows:
The diameter D=3000mm of known workpiece requires according to the optimization of machine volume and height, primarily determines d1=
1400mm、d2=1000mm, δ1=1500mm, δ2=50mm.Calculate separately β1、β2And α1, check wrap angle sigma1Whether meet the requirements.
Just fixed structural parameters are substituted into cos β1、tanβ2And α1Formula obtains β1=87.5 °, β2=37.6 °, α1=144.8 ° > 140 °,
It meets the requirements.
The sawing method of the particularly serious structural member sawing equipment is specific as follows:
Step 1: workpiece 21 is placed on V-type locating piece 17, controller controls clamping cylinder 25 and releases, so that clamping
Block 24 resists workpiece 21.
Step 2: the traversing motor rotation of workbench, so that workpiece 21 is directed at saw band 6 to sawing spot.
Step 3: sawing power motor rotates, so that active bandsaw wheel drives saw band, under the guidance of guide pad 9, saw is realized
The main motion cut.
Step 4: two feeding hydraulic cylinders 5 move synchronously, saw frame 3 is slided along guide upright post 2 to workpiece 21, realizes saw
The feed motion cut.
Controller continues alternately to ventilate by rod chamber, rodless cavity that reversal valve is oscillating cylinder 27, so that oscillating cylinder
The 27 continuous high frequency conversions in release and retraction, and then workpiece is driven persistently to carry out micro-swinging up and down.The swing of workpiece is formed
With the high frequency relative vibration by a small margin of saw band, achieve the purpose that chip breaking and chip removal, and then improve cutting-rate, reduces saw cutting area
The temperature in domain.The axis of rotation swung due to workpiece is perpendicular to the direction of feed of saw band 6, therefore the swing of workpiece will not influence sawing
Precision.
Meanwhile staff observation or video camera shooting after for controller image procossing by way of, detect saw band
It wanders off and deformation.When the sawing direction of saw band wanders off, two correction motor rotations, so that two pieces of correction movable plates
10 are moved forward and backward, and two bootstrap blocks 9 drive saw band 6 to deviate to preset sawing direction, to realize saw band automatic deviation correction.
When the deformation that twists (i.e. the run-off the straight, no longer along vertical plane sawing) of saw band, two torsion motor rotations drive two
Bootstrap block 9 rotates, and then squeezes saw band, so that the saw band side between two guiding deviation correction mechanisms is restored to vertical shape
State.
All in all, the guiding deviation correction mechanism in the present invention can make saw band generate the micro- of two freedom degrees of rotation and translation
It is dynamic, thus realize on-line automatic correction, the requirement for meeting saw band automatic deviation correction, carrying out sawing process error online compensation.
Claims (9)
1. a kind of particularly serious structural member sawing equipment, including rack, three-wheel saw cutting mechanism, feeding hydraulic cylinder, workbench, guiding
Deviation correction mechanism, workbench and clamping assembly；It is characterized by: the three-wheel saw cutting mechanism includes saw frame, active bandsaw wheel, saw
Band, intermediate band saw wheel and driven band saw wheel；The saw frame and rack constitutes sliding pair, and is driven by feeding hydraulic cylinder；Institute
Active bandsaw wheel, intermediate band saw wheel and the driven band saw wheel stated are supported on saw frame；Active bandsaw wheel and driven band saw wheel etc.
High setting；Intermediate band saw wheel is located at the top of active bandsaw wheel Yu driven band saw wheel line midpoint；Active bandsaw wheel, intermediate saw band
Wheel, driven band saw wheel are connected by saw band；
The guiding deviation correction mechanism includes guide pad, correction movable plate, correction swings worm screw, correction swings worm gear, correction is driven
Moving part and torsion motor；Correction movable plate and rack constitute sliding pair；Correction movable plate is driven by correction actuator；Correction is swung
Worm screw and correction swing worm gear and are supported on correction movable plate；Correction swings worm screw and engages with correction swing worm gear；Guide pad
Worm gear is swung with correction to fix；The bottom of guide pad offers guide slit；Saw band passes through the guide slit of guide pad；
The workbench includes oscillating table, mobile station, traversing actuator, swing spring, swing spring and oscillating cylinder；It is mobile
Platform and rack constitute sliding pair, and are driven by traversing actuator；The oscillating table and mobile station constitutes revolute pair；Swing spring
Both ends be separately connected with oscillating table, mobile station；Sliding slot is offered on oscillating table；The cylinder body of oscillating cylinder is fixed on mobile station
On；The piston rod outer end of oscillating cylinder is fixed with straight pin；Straight pin is arranged in the sliding slot of oscillating table；It is equipped on oscillating table
Clamping assembly.
2. a kind of particularly serious structural member sawing equipment according to claim 1, it is characterised in that: the three-wheel sawing machine
In structure, the diameter of active bandsaw wheel and driven band saw wheel is d1；The diameter of intermediate band saw wheel is d2；By the diameter of sawing workpieces
Or maximum dimension is D；d1、d2, D meet formula (1), (2), (3) simultaneously；
α1=270 ° of-β1-β2>=140 ° of formulas (3)
In formula (1) and (2), δ1For transverse safety distance, value range is 0.3D≤δ1≤0.5D；δ2For longitudinal safe distance,
Its value range is δ2≥50mm；
In formula (3), α1It is saw band to the cornerite of active bandsaw wheel and driven band saw wheel, β1And β2It is intermediate variable, value difference
It is found out according to formula (1), formula (2).
3. a kind of particularly serious structural member sawing equipment according to claim 1, it is characterised in that: the clamping assembly packet
Include V-type locating piece, gripping block, clamping cylinder and clamp base；V-type locating piece and clamp base are fixed on oscillating table；V-type is fixed
Positioning V-shaped groove is offered at the top of the block of position；Gripping block and clamp base constitute sliding pair；The cylinder body and gripping block of clamping cylinder are solid
It is fixed；The piston rod of clamping cylinder is fixed with clamp base；It is directed downwardly that gripping block is provided with inclination on the end face of V-type locating piece
Clamp inclined-plane.
4. a kind of particularly serious structural member sawing equipment according to claim 1, it is characterised in that: the correction movable plate
With rack the axis of active band saw wheel is parallel at the relative direction of sliding pair；The axis that the correction swings worm gear is vertical
In the axis of active band saw wheel.
5. a kind of particularly serious structural member sawing equipment according to claim 1, it is characterised in that: the guiding rectification machine
There are two structure is total；Two guiding deviation correction mechanisms are arranged between active bandsaw wheel and driven band saw wheel, and respectively close to actively
Bandsaw wheel, driven band saw wheel.
6. a kind of particularly serious structural member sawing equipment according to claim 1, it is characterised in that: the correction actuator
Including rectifying screw and correction motor；Rectifying screw is supported on saw frame, and by correction motor driven；It is fixed on correction movable plate
On nut and rectifying screw constitute screw pair.
7. a kind of particularly serious structural member sawing equipment according to claim 1, it is characterised in that: the traversing actuator
Including mobile lead screw and the traversing motor of workbench；The mobile lead screw is supported on base, and is driven by the traversing motor of workbench
It is dynamic；The nut and mobile lead screw for being fixed on mobile station bottom constitute screw pair.
8. a kind of particularly serious structural member sawing equipment according to claim 1, it is characterised in that: the feeding hydraulic oil
There are two cylinder is total；Two feeding hydraulic cylinder centerings are arranged on base；It feeds hydraulic cylinder and uses double-outlet cylinder；Feed liquid
The piston rod of compressing cylinder is fixed with rack；The cylinder body of feeding hydraulic cylinder is fixed with saw frame.
9. a kind of sawing method of particularly serious structural member sawing equipment as described in claim 1, it is characterised in that: Step 1:
It will be on clamping workpiece to clamping assembly；
Step 2: traversing actuator driving workpiece is mobile, so that workpiece is directed at saw band to sawing spot；
Step 3: active bandsaw wheel drives saw band movement, the main motion of sawing is realized；
Step 4: feeding hydraulic cylinder drives saw frame to slide to workpiece, the feed motion of sawing is realized；Oscillating cylinder has bar
Chamber, rodless cavity continue alternately to ventilate, so that oscillating cylinder is persistently converted in release and retraction, and then workpiece are driven persistently to carry out
It swings up and down, realizes the chip breaking and chip removal in sawing process；
When the sawing direction of saw band wanders off, correction actuator driving correction movable plate is moved forward and backward, bootstrap block band
Dynamic saw band is deviated to preset sawing direction；When saw band twist deform when, torsion motor rotation, drive bootstrap block
Rotation, and then saw band is squeezed, so that saw band side is restored to vertical state.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201910181622.1A CN109967793B (en) | 2019-03-11 | 2019-03-11 | Sawing equipment and sawing method for heavy and extra-large structural member |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910181622.1A CN109967793B (en) | 2019-03-11 | 2019-03-11 | Sawing equipment and sawing method for heavy and extra-large structural member |
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| CN109967793A true CN109967793A (en) | 2019-07-05 |
| CN109967793B CN109967793B (en) | 2020-03-03 |
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