CN106425351B - A kind of mounting process of shear machine knife blade - Google Patents
A kind of mounting process of shear machine knife blade Download PDFInfo
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- CN106425351B CN106425351B CN201611072610.8A CN201611072610A CN106425351B CN 106425351 B CN106425351 B CN 106425351B CN 201611072610 A CN201611072610 A CN 201611072610A CN 106425351 B CN106425351 B CN 106425351B
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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
- B23P15/28—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass cutting tools
- B23P15/40—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass cutting tools shearing tools
- B23P15/406—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass cutting tools shearing tools rotary or plane die cutters
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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
- B23D15/00—Shearing machines or shearing devices cutting by blades which move parallel to themselves
- B23D15/06—Sheet shears
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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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- Shearing Machines (AREA)
Abstract
The invention discloses a kind of mounting process of shear machine knife blade, belong to plate shearing machine field.Shear machine knife blade of the invention makes restriction to material, and uses means of isothermal quenching technique, ensure that the hardness and wearability of blade；Mounting process of the blade on plate shearing machine is given simultaneously, including Step 1: wallboard and binder seat are welded into rack；Step 2: the components such as mounting tool post；Step 3: weld brackets and place on the rack；Step 4: to main supporting plate, auxiliary supporting plate spot welding positioning；Step 5: installing lower tool apron and adjusting lower knife body straightness；Step 6: using diagonal welding sequence weld brackets.One aspect of the present invention improves the processing method of blade；On the other hand the mounting process of plate shearing machine is improved, the influence when mounting process of the self-defect and equipment that reduce blade uses plate shearing machine extends cutting-tool's used life, obtains preferable shear effect.
Description
Technical field
The present invention relates to shear field of machining technology, more specifically to a kind of mounting process of shear machine knife blade.
Background technique
Plate shearing machine is used for the shearing of sheet metal, and the shearing power resources of plate shearing machine are cut in hydraulic drive or machine driving
When plate, it is necessary to adjust cutter cutting edge and bottom knife sword according to the thickness for the shear strength and sheet metal for being sheared sheet metal
Gap between mouthful, and will keep the uniformity in gap, if gap is different or blade itself has certain deformation, into
When row sheet shearing, it is easy to situations such as causing uneven notch, sheet deformation and blade tipping generation.
Cause in the prior art the most basic reason of tool damage it is main there are two, be on the one hand blade itself comprehensive performance
Difference, easily-deformable or tipping when use；It on the other hand is installation process influence caused by cutting performance of plate shearing machine.
The used blade of plate shearing machine, generally requires higher hardness and wear-resisting property.If hardness is insufficient, be difficult into
Row sheet shearing, is easy to deform in shear history and tipping.For shear machine knife blade, influence blade capabilities it is main because
Element is its process for machining and manufacturing, and selection including material forges technique, heat treatment process etc., and different treatment processes can be right
The performance of blade causes large effect.
In the installation process of plate shearing machine, what service life subsequent for cutter was affected is the group of rack and lower tool apron
Dress technique, rack are the bearing parts of whole device, and the wallboard of rack two sides is for installing upper tool post, if rack is pacified in welding
There are biggish internal stress during dress, then being influenced in blade work by shearing force, can seriously affect blade
Stability in use is easy to produce tipping phenomenon；In addition, if rack installation it is unqualified, plate shearing machine in upper bottom knife shear action,
By plate internal stress, the upper and lower and joint effects such as front and back shearing force and shear plastic elastic deformation, the plate cutting side of formation
Edge is not identical with cutting edge, but the curve deformed.
Why blade and the deformation for processing plate will receive the influence of the installation process of plate shearing machine, main reason is that cutting
Trigger length is larger, generally in 2m or more, deformation is caused to be difficult to control.Such as the binder seat in plate shearing machine, length is big, thickness
Small, when welding, it is easy to appear interior arch or outer bulgy phenomenons in the middle part of tool apron, and striker plate is connect with binder seat, may will affect it
Backgauge accuracy；It can make wallboard deformation simultaneously, and then influence the shape of cutter.Certainly, the external presentation of this phenomenon is not
It is very prominent, but for installation requirement, it may be possible to it is serious to deviate from standard.
In conclusion the installation process for the plate shearing machine that the processing technology or blade of either blade itself are applied to,
The shear precision of plate will be influenced, while influencing whether the service life of blade and equipment.Therefore, how reasonably to design
Various techniques when blade and shear machine, enable the blade to overcome the problems, such as existing in the prior art various, are current institutes
The main bugbear faced.
Summary of the invention
1. technical problems to be solved by the inivention
It is an object of the invention to overcome, sheet shearing low precision, the easily-deformable tipping of shear machine knife blade be not in the prior art
Foot, provides a kind of mounting process of shear machine knife blade.Blade stiffness of the invention is high, and wearability is good, while to plate shearing machine
Mounting process optimizes, and reduces the mounting process of blade self performance and blade on plate shearing machine to the shadow of shear effect
It rings, improves the straightness of plate shears notch, extend cutting-tool's used life.
2. technical solution
In order to achieve the above objectives, technical solution provided by the invention are as follows:
A kind of processing method of shear machine knife blade of the invention, using 9GrSi tool steel blanking, the component that 9GrSi includes
And weight content is C:0.86~0.90%, Mn:0.38~0.5%；Cr:1.00~1.22%, Si:1.3~1.5%, Ni:
0.14~0.16%, Cu:0.07~0.13；Remaining is Fe and inevitable impurity；Its procedure of processing are as follows:
Step 1 carries out blanking using 9GrSi material, then forges into blade blank；
Step 2 anneals blank, 810~850 DEG C of annealing temperature, keeps the temperature 3~4 hours, then furnace cooling；
Step 3 carries out planing operation to blade after cooling, is then processed in lathe, and punch on blade；
Step 4 is quenched, and then in 180~200 DEG C of progress double temperings, tempering heat preservation 1~1.2 is small every time
When, temper number is 52~54HRC；
Step 5 handles blade fine grinding.
As further improvement of the present invention, quenching technical in step 4 are as follows: blade is heated to 840 in heating furnace
~860 DEG C, keep the temperature 3.5~4 hours；Oil is cold, or is put into 210~220 DEG C of salt made from earth containing a comparatively high percentage of sodium chloride baths heat preservation 30~35 minutes, then air-cooled.
A kind of mounting process of shear machine knife blade of the invention, knife of the installation as described in claim 1~2 on plate shearing machine
Piece, specific mounting process are as follows:
Step 1: welding supporting beam, binder seat between two wallboards, rack is formed；
Step 2: mounting tool post, oil cylinder, kicker cylinder, backgauge frame on the rack；Binder cylinder is installed on binder seat；It is described
Blade is installed on knife rest, the mounting surface on knife rest be helicoid, by hold-down bolt blade pressing on helicoid；
Step 3: weld brackets, the bracket being welded are lifted on the wallboard of rack, and adjust the position of bracket；
Step 4: the junction spot welding in main supporting plate and the first wallboard positions；Then to auxiliary supporting plate and second wallboard
Junction carries out spot welding positioning；Then successively to main supporting plate and the second wallboard, auxiliary supporting plate and the first wallboard in junction spot welding
Positioning；
Step 5: knife holder mechanism under installing on the workbench of bracket, adjusts the straight line of lower knife body in lower knife holder mechanism
Degree；
Step 6: carrying out first layer welding according to the diagonal welding sequence in step 4, after welding, detects and adjust
The straightness of lower knife body carries out second layer welding according to first layer welding sequence, is welded by the second layer and carry out deformation adjustment；
Step 7: completing the installation of operating device, fluid pressure line, distribution line, finally adjust between blade and lower knife body
Gap.
As further improvement of the present invention, in step 1 during welding binder seat, first to binder seat and rack
Spot welding positioning is carried out, first layer welding is then carried out；The straightness that upper base plate in binder seat is detected after welding, is welded using the second layer
Tap into row deformation adjustment.
As further improvement of the present invention, spot welding sequence in step 1 are as follows: from the first wallboard of outside spot welding and the seat of honour
The junction of plate, then from the junction of outside spot welding the second wallboard and upper base plate；The first wallboard and the seat of honour are welded from interior measuring point again
The junction of plate, the then junction of spot welding the second wallboard and upper base plate.
As further improvement of the present invention, in the first layer welding in step 1, using alternating expression welding method pair
Wallboard exterior portion is welded,
As further improvement of the present invention, when welding progress deformation adjustment using the second layer, if upper base plate evagination,
Second layer welding is then carried out on the inside of wallboard；If arch in upper base plate, carries out second layer welding on the outside of wallboard.
As further improvement of the present invention, knife rest described in step 2 is mounted on knife rest balance staff, by oil cylinder and
Backhaul oil cylinders drive knife rest to swing around knife rest balance staff.
As further improvement of the present invention, bracket described in step 3 is mainly by workbench, main supporting plate and auxiliary branch
When board group is at, welding, tool apron adjustable plate is first welded on the table, then workbench, main supporting plate and auxiliary supporting plate are welded on one
It rises, the workbench after welding is horizontally situated.
As further improvement of the present invention, lower knife body described in step 5 is fixed on lower tool apron, and the lower tool apron is logical
It crosses outer drawing bolt and interior supporting bolt is connect with tool apron adjustable plate, pass through outer drawing bolt and interior supporting bolt adjusts the straight line of lower knife body
Degree.
3. beneficial effect
Using technical solution provided by the invention, compared with prior art, have the following beneficial effects:
(1) a kind of shear machine knife blade of the invention is processed using 9GrSi tool steel material by the control to technique
Blade hardness with higher and wear-resisting property, deformation, the generation of tipping phenomenon, are able to extend making for cutter when avoiding use
Use the service life；
(2) mounting process of a kind of shear machine knife blade of the invention, on the one hand improves the processing method of blade, mentions
High blade capabilities；On the other hand the mounting process of plate shearing machine is improved, and with bolt blade pressing on helicoid,
The influence when mounting process of the self-defect and equipment that reduce blade uses plate shearing machine, extend cutter uses the longevity
Life, obtains preferable shear effect；
(3) mounting process of a kind of shear machine knife blade of the invention welds binder seat using alternating expression welding method
It connects, more conducively welds the mutual correction of thermal deformation；The welding for carrying out the other side is welded on if it is advanced side, due to whole
Weld seam is longer, it is possible that whole deformation, and be difficult to correct；And alternating expression welding method is used, between existing due to centre
Disconnected part, weld seam is relatively short, and one side deformation quantity is less, and thermal change on the other hand can be mutually carried out in staggeredly welding process
Shape correction, facilitates the raising of welding quality；In addition, carrying out the adjusting of interior arch or evagination deformation using two layers of welding, drop significantly
Stress existing for low upper base plate, straightness are guaranteed；
(4) mounting process of a kind of shear machine knife blade of the invention, when carrying out the welding of bracket, using diagonal Welder
Skill helps to eliminate deformation dislocation；It is first to weld main supporting plate when carrying out every time to fillet welding, main supporting plate plays workbench main
Supporting role, auxiliary supporting plate only further increases structural strength, therefore, it is necessary to be first to weld main supporting plate, it is ensured that its position is quasi-
True property and structural stability, and then guarantee the position precision of tool apron under workbench, improve integral solder quality.
Detailed description of the invention
Fig. 1 is the installation procedure figure of plate shearing machine；
Fig. 2 is the cross section structure schematic diagram of plate shearing machine；
Fig. 3 is the distributing position schematic diagram of plate shearing machine cornice sheathing；
Fig. 4 is the structural schematic diagram of binder seat；
Fig. 5 is alternating expression welding method schematic diagram；
Fig. 6 is the structural schematic diagram of knife rest；
Fig. 7 is the A direction view in Fig. 6；
Fig. 8 is the structural schematic diagram of bracket；
Fig. 9 is the structural schematic diagram of lower knife holder mechanism；
Figure 10 is the outer position distribution schematic diagram for drawing bolt and interior supporting bolt.
Label declaration in schematic diagram: 1, rack；11, the first wallboard；12, the second wallboard；13, knife rest；131, blade；
132, hold-down bolt；14, knife rest balance staff；15, supporting beam；2, bracket；21, workbench；22, supporting plate is assisted；23, main supporting plate；24,
Transverse slat；25, lower knife holder mechanism；251, tool apron adjustable plate；252, supporting plate is fed；253, lower tool apron；254, lower knife body；255, outer drawing
Bolt；256, interior supporting bolt；26, stiffening plate；3, binder seat；31, upper base plate；32, binder connecting plate；33, binder cylinder.
Specific embodiment
To further appreciate that the contents of the present invention, the present invention is described in detail in conjunction with the accompanying drawings and embodiments.
Embodiment 1
A kind of processing method of the shear machine knife blade of the present embodiment, using 9GrSi tool steel blanking, the group that 9GrSi includes
Divide and weight content is C:0.86%, Mn:0.38%；Cr:1.14%, Si:1.3%, Ni:0.16%, Cu:0.09%, remaining
For iron and inevitable impurity；Its procedure of processing are as follows:
Step 1 carries out blanking using the 9GrSi material of said ratio, then forges into blade blank；
Step 2 anneals blank, 840~850 DEG C of annealing temperature, keeps the temperature 3.5 hours, then furnace cooling；
Step 3 carries out planing operation to blade after cooling, is then processed, and punch on blade, is used in lathe
In installation hold-down bolt；
Step 4 is quenched the blade after processing, and using isothermal quenching technique, blade is added in heating furnace
Heat keeps the temperature 3.5 hours to 855~860 DEG C；215~220 DEG C of salt made from earth containing a comparatively high percentage of sodium chloride baths heat preservation 30 minutes are then placed in, it is then air-cooled, it completes to quench
Fire；Quenched blade carry out first time tempering, 190~200 DEG C of tempering temperature；Heat preservation 1 hour, temper number are
58HRC；Then it carries out being tempered for second, 185~190 DEG C of tempering temperature；Heat preservation 1.1 hours, temper number 58HRC.
Step 5 handles blade fine grinding.
Chromium (Gr) can increase the harden ability of steel and have post-curing effect in the present invention, and the hardness and wearability of steel can be improved
Without making steel become fragile；Silicon (Si) can be improved the harden ability of steel, and the intensity for improving blade has remarkable effect；Manganese (Mn) is steel
Important alloying element in material, can form the alloyed cementite containing manganese, the forming core of alloyed cementite when can reduce perlitic transformation
With long speed, harden ability is improved.By tempering, stress concentration phenomenon, the generation of Crack prevention are eliminated；Using isothermal hardening
Method can make blade obtain higher hardness and toughness.
Embodiment 2
A kind of processing method of the shear machine knife blade of the present embodiment, using 9GrSi tool steel blanking, carbon weight in 9GrSi
Content is 0.88%, and weight of chromium content is 1.18%, and silicon weight content is 0.9%, and manganese weight content is 0.45%, and for iron
With inevitable impurity, procedure of processing are as follows:
Step 1 carries out blanking using the 9GrSi material of said ratio, then forges into blade blank；
Step 2 anneals blank, 850 DEG C of annealing temperature, keeps the temperature 3 hours, then furnace cooling；
Step 3 carries out planing operation to blade after cooling, is then processed, and punch on blade, is used in lathe
In installation hold-down bolt；
Step 4 is quenched the blade after processing, and using isothermal quenching technique, blade is added in heating furnace
Heat keeps the temperature 3.5 hours to 855~860 DEG C；210~220 DEG C of salt made from earth containing a comparatively high percentage of sodium chloride baths heat preservation 30 minutes are then placed in, it is then air-cooled, it completes to quench
Fire；Quenched blade is carried out first time tempering, 180~200 DEG C of tempering temperature, keeps the temperature 1 hour, temper number is
58HRC；Then it carries out being tempered for second, 190~200 DEG C of tempering temperature, keeps the temperature 1.1 hours, temper number 57HRC.
Step 5 handles blade fine grinding.
Embodiment 3
In conjunction with Fig. 2, plate shearing machine generally comprise by two wallboards and support beam group at rack, the binder that is connected with wallboard
Seat, knife rest, oil cylinder etc., although structure is more conventional, its installation process is affected for the service life of equipment, this reality
It applies example and provides a kind of mounting process of shear machine knife blade, such as Fig. 1, detailed process are as follows:
Step 1: welding supporting beam 15, binder seat 3 between two wallboards, rack 1 is formed.
As shown in figure 3, wallboard includes the first wallboard 11 and the second wallboard 12, first two wallboards are fixed with rack, then
Supporting beam 15 is welded, binder seat 3 is then welded.In 3 welding process of binder seat, it is fixed that spot welding first is carried out to binder seat 3 and rack 1
Position, i.e., be fixed on binder seat 3 between two wallboards, then carries out first layer welding；Upper base plate in binder seat 3 is detected after welding
31 straightness is welded using the second layer and carries out deformation adjustment.
As shown in figure 4, binder seat 3 is mainly composed of upper base plate 31 and binder connecting plate 32, the two forms T junction
Structure, wherein binder connecting plate 32 is primarily used to installation feeding pressure mechanism, and upper base plate 31 is then for fixing binder connecting plate
32, it is fixed on the rack it.Upper cutter head is often to be mounted on the rack close to the position of upper base plate 31, if upper base plate 31 welds
Deformation is larger when connecing, and entire rack can be made all to there is stress concentration phenomenon, causes structural strength insufficient, when in use, it is easy to
It cracks；It is affected to shear effect, in some instances it may even be possible to will appear sword and split phenomenon, seriously affect cutter and equipment and use the longevity
Life.Therefore, it is necessary to draw to guarantee whole welding quality using second layer welding.
It is worth noting that when welding progress deformation adjustment using the second layer, if 31 evagination of upper base plate, i.e. upper base plate 31
Middle part is protruded to the side for deviateing rack, then second layer welding is carried out on the inside of wallboard, and leg can be to 31 1 lateral deviation of upper base plate
It moves；If arch in upper base plate 31, i.e. 31 middle part of upper base plate is recessed to the side close to rack, then second layer weldering is carried out on the outside of wallboard
It connects.The paving open area that will increase leg after second layer welding is reached due to the difference of welding position and is aligned the seat of honour from different directions
The purpose of plate 31 guarantees welding quality to allow.
In addition, if 31 deformation quantity of upper base plate is larger, two layers of weldering can be carried out to supporting beam 15 before carrying out second layer welding
It connects.The main function of supporting beam 15 is reinforcement structure intensity, and the front and rear sides of rack are distributed in binder seat 3, in deformation
In biggish situation, simple by the weld seam adjusting to binder seat 3 is difficult to that it is made to restore shape, and by supporting beam 15
Two layers of welding, can be adjusted with internal stress, facilitate the release of stress, reduce influence of the supporting beam to deformation.
Step 2: mounting tool post 13, oil cylinder, kicker cylinder, backgauge frame in rack 1；Binder cylinder is installed on binder seat 3
33。
The knife rest 13 is mounted on knife rest balance staff 14, drives knife rest 13 around knife rest balance staff 14 by oil cylinder and backhaul oil cylinders
It swings, oil cylinder and kicker cylinder carry out sheet shearing, the upper knife body for driving knife rest 13 to move, by the upper knife body on knife rest 13
As blade 131；In conjunction with Fig. 6, Fig. 7, the mounting surface on the present embodiment intermediate slide 13 is helicoid, passes through hold-down bolt 132
Blade 131 is pressed on helicoid, and no setting is required backing plate adjusts blade work face shape, reduces maintenance difficulties, has simultaneously
Help improve shear precision.
Striker plate is housed, for controlling panel length on backgauge frame.Binder cylinder 33 is set in qually spaced in 3 bottom of binder seat,
And it is bolted；Spring is connected on the piston shaft of binder cylinder 33.Binder cylinder 33 prevents from shearing for compressing plate
Plate misplaces in the process.If binder seat 3 has deformation, on the one hand plate can be made to have certain deformation during binder,
On the other hand it will lead to wallboard and generate faint deformation, and knife rest 13 is mounted on wallboard, influence making for machining accuracy and cutter
Use the service life.
Step 3: weld brackets 2, the bracket 2 being welded are lifted on the wallboard of rack 1, and adjust the position of bracket 2
It sets.
As shown in figure 8, the main function of bracket 2 is to carry lower tool apron, mainly by workbench 21, main supporting plate 23 and auxiliary branch
Plate 22 forms.When welding, tool apron adjustable plate 251 is first welded on workbench 21, then by workbench 21, main supporting plate 23 and assist branch
Plate 22 welds together, and the workbench 21 after welding is horizontally situated.
Main supporting plate 23 is vertically arranged, and auxiliary supporting plate 22 can be vertically arranged, and also tiltable is arranged, since it primarily serves auxiliary
Supporting role is not specifically limited.
In order to increase structural strength, it is connected with transverse slat 24 in the bottom position of main supporting plate 23 and auxiliary supporting plate 22, the transverse slat
24 can prevent main supporting plate 23 when welding and assist the internally deformation of supporting plate 22, have certain thermal deformation supporting role.
Step 4: needing to carry out spot welding positioning after step 3 adjustment good position.Since bracket overall dimensions are larger, become
Shape very little, main deformation appear in deformation caused by positional shift when first layer welds, and therefore, it is necessary to determine in spot welding
Good welding position.When specific operation, spot welding is carried out using diagonal welding manner, in the junction of main supporting plate 23 and the first wallboard 11
Spot welding positioning；Then spot welding positioning is carried out to the junction of auxiliary supporting plate 22 and the second wallboard 12；Then successively to main supporting plate 23
It is positioned with the second wallboard 12, auxiliary supporting plate 22 and the first wallboard 11 in junction spot welding.
Step 5: knife holder mechanism 25 under installing on the workbench 21 of bracket 2, adjusts lower knife body in lower knife holder mechanism 25
254 straightness.
Step 6: carrying out first layer welding according to the diagonal welding sequence in step 4, after welding, detects and adjust
The straightness of lower knife body 254 carries out second layer welding according to first layer welding sequence, is welded by the second layer and carry out deformation tune
It is whole；
Step 7: completing the installation of operating device, fluid pressure line, distribution line and rest part, step can be according to normal
Rule method is operated, and is repeated no more.
The present invention is mounted together each component of plate shearing machine, Er Qietong by the reasonable arrangement to assembling, welding procedure
The interaction for crossing two layers of welding procedure reduces deformation and internal stress, thus the difficult point that tool apron deforms when welding being overcome to install,
Welding quality is improved, deformation and stress concentration phenomenon when shear cutter uses is eliminated, extends making for cutter and equipment
Use the service life.
Embodiment 4
A kind of mounting process of shear machine knife blade of the present embodiment, basic process is same as Example 3, difference
It is: spot welding sequence in step 1 are as follows: from the junction of the first wallboard of outside spot welding 11 and upper base plate 31, then from outside spot welding
The junction of second wallboard 12 and upper base plate 31；The junction of the first wallboard 11 and upper base plate 31 is welded from interior measuring point again, then point
Weld the junction of the second wallboard 12 and upper base plate 31.
Embodiment 5
In conjunction with Fig. 5, a kind of mounting process of shear machine knife blade of the present embodiment, basic process is same as Example 4,
The difference is that: in the first layer welding in step 1, wallboard exterior portion is welded using alternating expression welding method,
Alternating expression welding sequence are as follows:
A, it is spot welded in upper and lower combine of the first wallboard 11 and upper base plate 31, then welds the second wallboard 12 and upper base plate
31 middle part binding site；
B, the middle part binding site of the first wallboard of welding 11 and upper base plate 31；
C, the upper and lower binding site of the second wallboard of welding 12 and upper base plate 31.
First in the position of a side wall panel, 1. place is welded, and centre forms spaced points；Then in the position of wallboards of the other side
2. place is welded, it is complementary 1. to locate welding formation with position；Then in position, 3. place is welded, 4. last welding position is located,
Which both can be shortened weld seam, reduce thermal deformation, and the thermal deformation of two sides can be made to cancel out each other, and obtain preferable welding matter
Amount.
The welding for carrying out the other side again if it is first progress side welding, since whole weld seam is longer, it is possible that whole
The bodily form becomes, and is difficult to correct；And alternating expression welding method is used, and since centre has interruption part, weld seam is relatively short, and one
Aspect deformation quantity is less, and there are certain cooling meat times；On the other hand heat can be mutually carried out in staggeredly welding process
Straightening facilitates the raising of welding quality.
Embodiment 6
A kind of mounting process of shear machine knife blade of the present embodiment, basic process is same as Example 5, difference
It is:
In conjunction with Fig. 8, when carrying out the welding of bracket in step 3, in order to guarantee the structural strength of main supporting plate 23, in main branch
It is welded with stiffening plate 26 between plate 23 and workbench 21, forms a triangle between main supporting plate 23, workbench 21 and stiffening plate 26
Structure.
In specific welding, after having welded main supporting plate 23, adjust the position of stiffening plate 26, it is settable its with main supporting plate 23
Angle be 38 °, may be alternatively provided as the other angles value in 30~48 °, be not specifically limited；Then 26 spot welding of stiffening plate is determined
Position, then carry out seam to two and weld.
Since strength support to be played acts on, and it is connect with workbench 21, so need angle between 30~48 °,
If angle is excessive, the lateral bearing component that can be shared becomes larger, and longitudinal load-bearing component becomes smaller, and what can be played stablizes support
Effect less, therefore will make limitation to angle.
When specifically used, the form of two pieces of scoreboards also can be used as structural reinforcing plate, but using the welding process of scoreboard
It is more troublesome, it is not easy to control whole deformation, therefore, operate relatively complicated, it is difficult to it achieves the desired results, specifically used Shi Kegen
According to the structure type for needing to select stiffening plate.
Embodiment 7
A kind of mounting process of shear machine knife blade of the present embodiment, basic process is same as Example 6, difference
It is:
In conjunction with Fig. 9, Figure 10, lower knife body 254 is fixed on lower tool apron 253 in step 5, lower 253 top of tool apron be fixed with into
Expect supporting plate 252, tool apron adjustable plate 251 is welded on 21 upper surface of workbench, and the lower tool apron 253 is by outer drawing bolt 255 and interior supports
Bolt 256 is connect with tool apron adjustable plate 251.Wherein, outer drawing bolt 255 can tense lower tool apron 253 to the right；Interior supporting bolt
256 can resist lower tool apron 253 to the left；The straight line of lower knife body 254 is adjusted by outer drawing bolt 255 and interior supporting bolt 256
Degree, while the position of lower knife body 254 can be adjusted, change the spacing of upper knife body and lower knife body, adapts to cutting for different-thickness plate
It cuts.
In the second layer welding process of step 6, need to carry out the adjustment of Size of welds, the adjustment according to testing result
It is mainly reflected in the adjustment of Size of welds at main supporting plate 23.Supporting plate is assisted due to existing, when carrying out second layer welding, usually
Leg is deviated to main supporting plate side, so that biggish paving open area, the i.e. exterior surface area of leg are obtained, to overcome existing
Faint thermal deformation.
The present invention is by blade processing method, and the reasonable arrangement of assembling, welding procedure, each component of plate shearing machine
It is mounted together, and deformation and internal stress is reduced by the interaction of welding procedure, to reduce plate shearing machine welding
Influence of the mounting process to blade, improves welding quality, overcomes blade self-defect and plate shearing machine rack to shearing
Influence, eliminate deformation when shear machine knife blade uses, tipping phenomenon, shear precision is higher, extends cutter and equipment
Service life.
Schematically the present invention and embodiments thereof are described above, description is not limiting, institute in attached drawing
What is shown is also one of embodiments of the present invention, and actual structure is not limited to this.So if the common skill of this field
Art personnel are enlightened by it, without departing from the spirit of the invention, are not inventively designed and the technical solution
Similar frame mode and embodiment, are within the scope of protection of the invention.
Claims (4)
1. a kind of mounting process of shear machine knife blade, it is characterised in that: install blade (131) on plate shearing machine, specific erector
Skill are as follows:
Step 1: welding supporting beam, binder seat (3) between two wallboards, formed rack (1)；In welding binder seat (3) process
In, spot welding positioning first is carried out to binder seat (3) and rack (1), then carries out first layer welding；Binder seat (3) are detected after welding
The straightness of middle upper base plate (31) is welded using the second layer and carries out deformation adjustment, carries out deformation adjustment welding using the second layer
When, if upper base plate (31) evagination, second layer welding is carried out on the inside of wallboard；If arch in upper base plate (31), on the outside of wallboard
Carry out second layer welding；Spot welding sequence are as follows: from the junction of the first wallboard of outside spot welding (11) and upper base plate (31), then from outer
The junction of side point weldering the second wallboard (12) and upper base plate (31)；Again from the first wallboard of inside spot welding (11) and upper base plate (31)
Junction, the then junction of the second wallboard of spot welding (12) and upper base plate (31)；It is welded in first layer welding using alternating expression
Method welds wallboard exterior portion, alternating expression welding sequence are as follows:
A, it is spot welded in upper and lower combine of the first wallboard 11 and upper base plate 31, then welds the second wallboard 12 and upper base plate 31
Middle part binding site；
B, the middle part binding site of the first wallboard of welding 11 and upper base plate 31；
C, the upper and lower binding site of the second wallboard of welding 12 and upper base plate 31；
Step 2: mounting tool post (13), oil cylinder, kicker cylinder, backgauge frame on rack (1)；Binder cylinder is installed on binder seat (3)
(33)；It is equipped with blade (131) on the knife rest (13), the mounting surface on knife rest (13) is helicoid, passes through hold-down bolt
(132) blade (131) is pressed on helicoid；
Step 3: weld brackets (2), the bracket (2) being welded are lifted on the wallboard of rack (1), and adjust bracket (2)
Position；
Step 4: the junction spot welding in main supporting plate (23) and the first wallboard (11) positions；Then to auxiliary supporting plate (22) and the
The junction of two wallboards (12) carries out spot welding positioning；Then successively to main supporting plate (23) and the second wallboard (12), auxiliary supporting plate
(22) it is positioned with the first wallboard (11) in junction spot welding；
Step 5: knife holder mechanism (25) under being installed on the workbench (21) of bracket (2), under adjusting in lower knife holder mechanism (25)
The straightness of cutter hub (254)；
Step 6: carrying out first layer welding according to the diagonal welding sequence in step 4, after welding, detects and adjust and cut
The straightness of body (254) carries out second layer welding according to first layer welding sequence, is welded by the second layer and carry out deformation adjustment；
Step 7: completing the installation of operating device, fluid pressure line, distribution line, blade (131) and lower knife body are finally adjusted
(254) gap.
2. a kind of mounting process of shear machine knife blade according to claim 1, it is characterised in that: knife rest described in step 2
(13) it is mounted on knife rest balance staff (14), is swung by oil cylinder and backhaul oil cylinders driving knife rest (13) around knife rest balance staff (14).
3. a kind of mounting process of shear machine knife blade according to claim 1, it is characterised in that: bracket described in step 3
(2) mainly be made of workbench (21), main supporting plate (23) and auxiliary supporting plate (22), when welding, elder generation welds on workbench (21)
Tool apron adjustable plate (251), then workbench (21), main supporting plate (23) and auxiliary supporting plate (22) are welded together, the work after welding
Make platform (21) to be horizontally situated.
4. a kind of mounting process of shear machine knife blade according to claim 1, it is characterised in that: cut described in step 5
Body (254) is fixed on lower tool apron (253), which passes through outer drawing bolt (255) and interior supporting bolt (256) and knife
Seat adjustable plate (251) connects, and the straightness of lower knife body (254) is adjusted by outer drawing bolt (255) and interior supporting bolt (256).
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| CN107160124A (en) * | 2017-06-29 | 2017-09-15 | 沈忠伟 | A kind of thin sword cutting knife processing method of mould |
| CN110695625B (en) * | 2019-10-21 | 2020-12-29 | 奚峰利 | Production process of forklift plate |
| CN111299988B (en) * | 2020-03-19 | 2021-11-12 | 马鞍山市申力特重工机械股份有限公司 | Manufacturing method of thick blade for plate shearing machine |
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| CN2788943Y (en) * | 2005-04-26 | 2006-06-21 | 江苏国力锻压机床有限公司 | Servo supporting material plate shearing machine tool carrier |
| RU2375157C1 (en) * | 2008-07-23 | 2009-12-10 | Государственное образовательное учреждение высшего профессионального образования Московский Государственный Технологический Университет "СТАНКИН" | Plate shearing machine |
| CN103464999A (en) * | 2013-09-04 | 2013-12-25 | 马鞍山市恒利达机械刀片有限公司 | Method of producing integrated long blade |
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| CN204277065U (en) * | 2014-12-25 | 2015-04-22 | 安徽华东机床制造有限公司 | A kind of swing-type plate shears |
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