CN105171116B - A kind of NEW TYPE OF COMPOSITE broaching tool - Google Patents
A kind of NEW TYPE OF COMPOSITE broaching tool Download PDFInfo
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- CN105171116B CN105171116B CN201510703810.8A CN201510703810A CN105171116B CN 105171116 B CN105171116 B CN 105171116B CN 201510703810 A CN201510703810 A CN 201510703810A CN 105171116 B CN105171116 B CN 105171116B
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Abstract
The invention discloses a kind of NEW TYPE OF COMPOSITE broaching tool, including：Punch, tooth, pull bar, broaching tool location division and broaching tool afterbody, the first tapered round platform connecting portion of direction of the diameter from punch to tooth is provided between described punch and tooth, the second round platform connecting portion is provided between described pull bar and broaching tool location division, broaching tool location division is arranged between the second round platform connecting portion and broaching tool afterbody, described tooth includes that diameter is more than punching initial diameter and punched out teeth and diameter less than punching aimed dia are equal to punching aimed dia and repair hole tooth, described punched out teeth repaiies hole dental transition close to described punch than described, the diameter of the punch is equal to punching initial diameter.Compared with prior art, the NEW TYPE OF COMPOSITE broaching tool has saved the time that the die-filling of second work efficiency, die trial and frock expend, solving second in the prior art repaiies the technical problem that hole locating is difficult to fix simultaneously, and " euphotic belt " is that the vertical component of the inwall in the aperture in the hole gone out is improved.
Description
Technical field
The present invention relates to a kind of NEW TYPE OF COMPOSITE broaching tool, belong to bent plate chain processing technique field.
Background technology
Nonstandard chain, big specification 40A, the chain of more than B standards roller chain and various heavy bent plate chains in process of production
Plate needs to be punched out it, so that the aperture processed on interior outer plate needed for formation.The existing mistake processed on carrier bar
Journey is punch first, and carrier bar is punched out by pressing equipment, after being punched out due to punch to carrier bar, the internal diameter upper end in hole
It is out of plumb certainly with lower end, reason is that the endoporus parameter of the cooperation cavity plate in a traditional way of punch and cavity plate must be in punching
Follow closely amplification 0.3~0.5mm or so on parameter basis, depending on thickness of link plates, carrier bar more than 15 millimeters, the amplification of cavity plate internal diameter
Coefficient also to increase (cavity plate internal diameter coefficient increase will be depending on the hardness of rapidoprint, material hardness is recessed more than more than HRC18
Mould internal diameter enhancement coefficient is relatively small, whereas to big).The result that it is rushed out：Aperture inwall vertical component very little, about
Be thickness of link plates 1/10~1/6 between, this area is commonly called as euphotic belt.Must form loudspeaker big below small above one
Shape, its error is between 0.3~0.5mm.If being mounted directly axle behind the hole by this state, due to connecing for axle and hole wall
The stress surface very little with hole wall in only sub-fraction, the course of work of such axle, axle and the reduction of carrier bar joint fastness are touched, and
The aperture of carrier bar expands quickly, so as to reduce the service life of carrier bar, it is usually the case that needing device to hole to carry out repairing hole again, repaiies
Hole mode has several, including the fraising of secondary punching, reamer and broaching tool broaching hole, and it is to make the perpendicularity in aperture big to repair the result behind hole
Width increase, this area is referred to as euphotic belt increase.Repairing hole technique at present needs second of die-filling, die trial, and debugging, what is processed twice adds
Work mode needs to complete by two steps, directly increases the production time of carrier bar processing, reduces the effect of mould and frock
Rate, and need to be equipped with punch and broaching tool simultaneously, add the production cost of enterprise.Second repaiies hole work in the prior art in addition
The technical problem that skill is difficult to fix in the presence of positioning.
The production work of applicant's long campaigns chain, has patent application in terms of the processing technology and broaching tool of chain,
Such as document CN103433419A is patent of invention filed in the applicant's August in 2013 6 days, and this application has been obtained at present
Authorize, describe a kind of processing technology of chain in detail, including：(1) blanking, punching press is carried out with pressing equipment by workpiece；(2)
After the completion of annealing, blanking, 800 degree to the 900 degree continuous annealing of 5 hours are carried out to workpiece, Rockwell hardness is in below 12HRC；(3)
Under phosphorating treatment, normal temperature, workpiece is immersed in phosphating solution, soak time is 2-3 hours；(4) bend and punching, use bending die
Workpiece is bent；Workpiece is centered again, punch press punching is used；(5) quench, workpiece is put into stove and quenched, is quenched
Fiery temperature is 860 degree；(6) it is tempered, temperature is 380 degree, and the time is 90 minutes, and Rockwell hardness is in 38-45HRC；(7) finishing
Work, fixes workpiece with mould, then mould is put into together with workpiece on grinding machine processed.The program is needed by least two steps
Rapid to complete, operating procedure is comparatively laborious, and production cost is higher.
Document CN204171447U is utility model patent filed in the applicant's September in 2014 4 days, and this application is at present
Through being authorized, a kind of broaching tool, including handle of a knife 1 are disclosed, knife upper end sets the broaching of multiple its outer peripheral face of annular spread
Tooth 2,3 in upper end is small, lower end is big at the top of handle of a knife, and 3 cross section is in the polygon being made up of five sides at the top of handle of a knife, polygonal
The length of side of each edge is equal；Broaching tool is provided with multiple on pressing equipment, and broaching tool is fixed on pressing equipment by installed part, so that
Porous processing can be carried out by counter plate simultaneously, the plate contact at handle of a knife top 3 and chain first realizes the punching of counter plate, then
The counter plate of broach teeth 2 on handle of a knife is processed, and required hole is molded on panel so as to realize.Although the program can be improved
The production efficiency of broaching tool, but the applicant does not complete whole improvement examinations when the utility model application day is submitted
Test, all also have improved necessity in terms of the concrete structure of broaching tool, service life, detail parameters etc..
The content of the invention
There is provided a kind of NEW TYPE OF COMPOSITE broaching tool in order to solve the above problems by the present invention.
Combination broach of the present invention includes punch, tooth, pull bar, broaching tool location division and broaching tool afterbody, described punch
The first tapered round platform connecting portion of direction of the diameter from punch to tooth, described pull bar and broaching tool location division are provided between tooth
Between be provided with diameter and become the second big round platform connecting portion from pull bar to the direction of broaching tool location division, broaching tool location division is arranged on the
Between two round platform connecting portions and broaching tool afterbody, described tooth includes diameter and is more than punching initial diameter and less than punching aimed dia
Punched out teeth and diameter be equal to punching aimed dia and repair hole tooth, described punched out teeth repaiies hole dental transition close to described than described
Punch, the diameter of described punch is equal to punching initial diameter.
The structure that described punch, tooth, pull bar, broaching tool location division and broaching tool afterbody is formed in one.
Described punching aimed dia 0.3mm-0.5mm bigger than punching initial diameter, the diameter specific impulse of described punched out teeth
The big 0.1mm-0.15mm of hole initial diameter, and in the case where punched out teeth is multiple, along from punch to the side of broaching tool afterbody
Increase 0.1mm-0.15mm step by step to the diameter of punched out teeth.
Described tooth includes the first tooth, the second tooth, the 3rd tooth and the 4th tooth, wherein the first tooth and the second tooth are punched out teeth,
3rd tooth and the 4th tooth is repair hole tooth, wherein diameter big 0.1mm-0.15mm of the diameter of the first tooth than described punch, second
Diameter big 0.1mm-0.15mm of the diameter of tooth than the first tooth.
The diameter of the second described round platform connecting portion is cumulative to the direction of broaching tool location division from pull bar, broaching tool location division it is straight
Footpath is more than the diameter of pull bar, and the diameter of broaching tool afterbody is more than the diameter of broaching tool location division.
Described punched out teeth includes the first basal plane, the second basal plane, the 3rd basal plane and the 4th basal plane with hole tooth is repaiied, wherein the
Angle between one basal plane and horizontal plane is more than zero, and the angle between the second basal plane and vertical plane is more than zero, horizontal plane with it is vertical
It is orthogonal between face, by the round and smooth connection of curved surfaces between the first basal plane and the second basal plane, in the first basal plane and the second base
Groove is formed at curved surfaces between face；Second basal plane and the 3rd basal plane form crown in intersection；The width of 3rd basal plane
Position more than zero, the 4th basal plane from the width for being equal to the 3rd basal plane with crown distance of the 3rd basal plane is tilted down.
Angle between first basal plane and horizontal plane is 30 °；Angle between second basal plane and vertical plane is 12 °, the 3rd
The width of basal plane is 2mm, and the vertical plane is mutually perpendicular to horizontal plane.
Combination broach sequentially passes through the pre-heat treatment twice, Quenching Treatment, 4 tempering process, ice-cold processing and straightening technology.
Described the pre-heat treatment twice includes preheating for the first time and second preheats, and first time preheating temperature is 500-550
DEG C, preheating time first time is 1 hour；Second of preheating temperature is 850 DEG C, and second of preheating time is 12 minutes.
Described Quenching Treatment is quenched using 1170 DEG C -1190 DEG C of heating-up temperature, and the heat time is 10-15
Second, cooled down after the completion of heating using 80 DEG C -120 DEG C of cooling oil, cool time is identical with the heat time.
4 times described tempering process are tempered 2.5 hours every time, and temperature is 540 DEG C -580 DEG C, every time the drawing after tempering
Knife is cooled to after room temperature and is tempered next time again.
Described ice-cold processing makes combination broach be heated to 200 DEG C in cabinet-type electric furnace first, two hours is incubated, -70
Ice-cold processing is carried out at DEG C, ice-cold processing time maintains 15 minutes.
Broaching tool is placed in the V-arrangement support block at alignment workbench two ends by described straightening technology, two ends is kept height
Unanimously, the position for having bend relief in broaching tool natural gas spraying gun heated baking, temperature is higher than 300 DEG C and less than temperature,
On broaching tool surface, presentation is lilac simultaneously, using position pressurization of the press rods to bend relief, makes the quenching geneva at the position
Body is changed into tempered martensite.
The beneficial effects of the present invention are：
NEW TYPE OF COMPOSITE broaching tool of the present invention compared with prior art, has significantly improved work efficiency, and above carry in quality
At least 20% has been risen, the time that the die-filling of second work efficiency, die trial and frock expend has been saved, time saving power saving is solved simultaneously
Second repaiies the technical problem that hole locating is difficult to fix in the prior art.Using NEW TYPE OF COMPOSITE broaching tool energy of the present invention
The perpendicularity up and down of endoporus is enough improved, " euphotic belt " is that the vertical component of the inwall in the aperture in the hole gone out is improved.
Brief description of the drawings
Fig. 1 is the structural representation of combination broach of the present invention.
Fig. 2 is the profile of the crown of combination broach of the present invention.
Fig. 3 is the assembling schematic diagram of the outer plate that conventional machining process makes and axle.
Fig. 4 is the outer plate and the assembling schematic diagram of axle of the combination broach making of the present invention.
In figure：1- punches, 2- teeth, 3- pull bars, 4- broaching tools location division, 5- broaching tools afterbody, the first round platforms of 6- connecting portion, 7-
Two round platform connecting portions, the teeth of 21- first, the teeth of 22- second, the teeth of 23- the 3rd, the teeth of 24- the 4th, the basal planes of 211- first, the bases of 212- second
Face, the basal planes of 213- the 3rd, the basal planes of 214- the 4th, 31- axles, 32- outer plates, the angles of A- first, the angles of B- second, the basal planes of L- the 3rd
Width.
Embodiment
The technical scheme in the application is clearly and completely described below in conjunction with accompanying drawing, it is clear that described reality
Apply a part of embodiment that example is only the application, rather than whole embodiments.Based on the embodiment in the application, this area
The every other embodiment that those of ordinary skill is obtained on the premise of creative work is not made, belongs to the application guarantor
The scope of shield.
Embodiment one
As shown in Figure 1：Combination broach of the present invention includes punch 1, tooth 2, pull bar 3, broaching tool location division 4 and broaching tool tail
Portion 5, is provided with diameter from punch 1 to the first round platform connecting portion 6 that the direction of tooth 2 is tapered, institute between described punch 1 and tooth 2
Diameter is provided between the pull bar 3 stated and broaching tool location division 4 and becomes the second big round platform from pull bar 3 to the direction of broaching tool location division 4
Connecting portion 7, pull bar 3 is arranged between the round platform connecting portion 7 of tooth 2 and second, and broaching tool location division 4 is arranged on the second round platform connecting portion 7
Between broaching tool afterbody 5, described tooth 2 include diameter be more than punching initial diameter and punched out teeth less than punching aimed dia and
Diameter repaiies hole tooth equal to punching aimed dia, and described punched out teeth repaiies hole dental transition close to described punch 1 than described, described
Punch 1 diameter be equal to punching initial diameter.
The structure that described punch 1, tooth 2, pull bar 3, broaching tool location division 4 and broaching tool afterbody 5 is formed in one.Described
The diameter of two round platform connecting portions is cumulative to the direction of broaching tool location division from pull bar, and the diameter of broaching tool location division is more than the straight of pull bar
Footpath, the diameter of broaching tool afterbody is more than the diameter of broaching tool location division.Broaching tool is greatly extended using the combination broach of this structure
Service life.
It is combined together due to described combination broach by punch 1 and including punched out teeth with the tooth 2 for repairing hole tooth, and pull bar
3rd, the physical characteristic at broaching tool location division 4 and each position of broaching tool afterbody 5 has difference, and can not meet this using manufacturing processes customary answers
Broaching tool is closed to sharpness, wearability, high rigidity, high tenacity and long-life requirement.Applicant is developed into by lot of experiments
Special processing technology, and the parameter index such as sharpness, wearability, hardness of the processing technology to the combination broach in itself
There is restriction effect.
Due to the special shape for the combination broach that punch 1, tooth 2, pull bar 3, broaching tool location division 4 and broaching tool afterbody 5 are constituted, make
It is obtained easily to be deformed and crack in quenching process.Therefore before quenching, annealing etc. further heat treatment, first
By the pre-heat treatment twice.First time preheating temperature is 500-550 DEG C, and preheating time first time is 1 hour；Second of preheating temperature
Spend for 850 DEG C, second of preheating time is 12 minutes.Preheating time is unsuitable long, otherwise easily causes the decarburization and corruption of broaching tool
Erosion.
In order to ensure that broaching tool has good hardness and toughness, the generation and deformation of crackle are prevented, it is ensured that carbide is good
Ground melts, and avoids crystal grain from growing up, and broaching tool mechanical performance and cutting ability reduction after quenching is prevented, using 1170 DEG C -1190
DEG C heating-up temperature quenched, the heat time be 10-15 second, after the completion of heating using 80 DEG C -120 DEG C cooling oil progress it is cold
But, cool time is identical with the heat time.
In order to ensure that retained austenite changes completely, using 4 tempering process, it is tempered 2.5 hours every time, temperature is
540 DEG C -580 DEG C, the broaching tool after tempering is cooled to after room temperature every time is tempered next time again.
In order to prevent further deformation, broaching tool is preferably remained dimensionally-stable in use, keep broaching tool type
Face is correct, improves the service life for being extended broaching tool by the quality of drawing part, described combination broach also passes through ice-cold processing, first
200 DEG C are first heated in cabinet-type electric furnace, two hours are incubated, ice-cold processing is carried out at -70 DEG C, ice-cold processing time maintains 15
Minute.
Described combination broach also further across straightening technology, broaching tool is placed on the V-arrangement branch at alignment workbench two ends
On bracer, two ends are made to keep highly consistent, the position for having bend relief in broaching tool natural gas spraying gun heated baking, temperature is higher than
300 DEG C and less than temperature, presented on broaching tool surface it is lilac simultaneously, the position of bend relief is added using press rods
Pressure, makes the quenched martensite at the position be changed into tempered martensite, because the specific volume of tempered martensite is smaller, produces convergent force,
Plus the pressurization of press rods, the position of bending is set to become straight.
Fig. 3 shows the outer plate that conventional machining process makes.In the carrier bar production process of traditional chain, particularly
The nonstandard big specification chain of chain and various heavily loaded chains, in the technique of carrier bar punching, always there is a procedure of punching.In punching
In the work of hole, the aperture that punching comes out is difficult to accomplish that aperture inner cylinder is vertical, and the hole rushed out must be "/" font
Hole (as shown in Figure 3), i.e., the aperture on the top in hole is as the parameter of the diameter of punch, and the aperture of the bottom in hole must be
In the parameter in cavity plate aperture, such as production process, the aperture that we require isAnd the result top rushed out isBottom
Must be(+0.3^+0.5), this will be processed again, and this area is commonly called as " repairing hole ", arriving if any 100 or more
10000 interior outer chain sheets, after the completion of first of punching, then die-filling, will be equipped with and do second and repair hole, usual manner year after year,
The production time of carrier bar processing is directly increased, the efficiency of mould and frock is reduced, and needs to be equipped with punch and drawing simultaneously
Knife, adds the production cost of enterprise.If do not reprocessed, i.e., without repairing hole operation, inner diameter cylindrical body vertical height
Very low, this area is commonly called as very short for " euphotic belt ", and " euphotic belt " is the vertical component of the inwall in the aperture in the hole gone out, generally only
The 1/6 or 1/10 of sheet metal thickness, that is to say, that formed one it is small big tubaeform below above, its error is in 0.3mm-
Between 0.5mm.If being mounted directly axle behind the hole by this state, as shown in figure 3, due to rushing on axle 31 and outer plate 32
The hole wall in hole only has sub-fraction to contact (top of the outer plate 32 in Fig. 3), in the course of work of such axle with hole wall by
Power face very little, axle and the reduction of carrier bar joint fastness, and the aperture of carrier bar expands quickly, so that the service life of carrier bar is reduced,
Such workpiece assembles the chain service life come certainly not long as flowed into after next procedure.
In order to which by time processing, it is ensured that the perpendicularity of punching inner cylinder, the application is using diameter of punch 1 etc.
Initial parameter (i.e. punching initial diameter) in required aperture, the diameter of punched out teeth is more than punching initial diameter and less than punching mesh
Mark diameter, the diameter for repairing hole tooth is equal to the target component (i.e. punching aimed dia) in required aperture, by punch 1, punched out teeth and
Repair the collective effect of hole tooth, one-shot completes punching and repaiies hole two procedures, be directly realized by punching aperture from initial parameter to
The processing of target component.
As exemplary embodiment, the initial parameter and target component in punching aperture are illustrated.The mesh in punching aperture
Marking parameter (i.e. punching aimed dia) is determined by the technological requirement of chain, is configured, for example, is needed according to actual needsPunching, punching aimed dia is just set as 15mm.The initial parameter (i.e. punching initial diameter) in punching aperture be then by
Processing root is empirically worth what is calculated according to target component, and as a rule, punching initial diameter is smaller than punching aimed dia
0.3mm-0.5mm。
For example, it is desired to which the target component (i.e. punching aimed dia) of punching isI.e. hole internal diameter is 15mm, in order to realize
The inside in hole is the consistent cylinder of perpendicularity up and down, using a diameter of 15mm- (0.3mm-0.5mm) of punch 1, i.e. punching hole
The Initial parameter sets in footpath are 14.5-14.7mm, and the diameter of punched out teeth is than punching initial diameter (the i.e. initial ginseng in punching aperture
Number) diameter of big 0.1mm-0.15mm, i.e. punched out teeth is set as 14.6-14.8mm or 14.65-14.85mm, repaiies the straight of hole tooth
Footpath is set as needing the target component (i.e. punching aimed dia) of punching, that is, the diameter for repairing hole tooth is set as 15mm, so passes through
The upper diameter for the endoporus that punch 1 is impacted is 14.5-14.7mm, and lower diameter is 15mm, the endoporus impacted by punched out teeth
Upper diameter is 14.6-14.8mm or 14.65-14.85mm, then repaiies hole tooth secondary pulse, secondary punching by diameter 15mm
Endoporus can realize the cylindrical shape for substantially descending perpendicularity consistent, that is, repair hole in the case where considering tolerance after the completion of hitting
Tooth is completed after secondary pulse, and diameter of bore is basically identical up and down, is 15mm.Made using the combination broach of the application
The assembling schematic diagram of outer plate and axle is as shown in Figure 4, it can be seen that after the punching on the insertion outer plate 32 of axle 31, due to interior
The perpendicularity up and down in hole is basically identical, and the contact area of axle 31 and endoporus hole wall is greatly increased, that is, euphotic belt is greatly increased.
The cooperation of axle and chain plate hole is interference fit, and axle macropore is small, and the stress surface that assembling carrier bar axis hole and axle coordinate becomes big, axle and carrier bar
Between joint fastness greatly improve, and the joint fastness between axle and carrier bar is the important key index of chain products.
As it was previously stated, punching aimed dia 0.3mm-0.5mm bigger than punching initial diameter, the diameter ratio of described punched out teeth
The big 0.1mm-0.15mm of punching initial diameter, and in the case where punched out teeth is multiple, along from punch to broaching tool afterbody
The diameter of direction punched out teeth increases 0.1mm-0.15mm step by step.
Substantial amounts of engineering test shows that NEW TYPE OF COMPOSITE broaching tool of the invention is applied to the carrier bar of various apertures and various thickness
Processing, being particularly suitable for use in punching aperture is(i.e. aperture is 8mm-65mm), chain of the thickness of link plates in the range of 4-38mm
Bar is processed.Particularly when thickness of link plates is more than 4.5 millimeters, the function of this NEW TYPE OF COMPOSITE broaching tool is that other mould patterns can not
Substitute, saved the working time of a procedure, generally said that work efficiency is enhanced about more than once, while frock is saved, should using
During NEW TYPE OF COMPOSITE broaching tool, used cooperatively preferably with lubricant (cost is very low), it is better.
Embodiment two
As preferred embodiment, there is the combination broach shown in Fig. 1 four teeth, i.e. tooth 2 to include the first tooth 21, the second tooth
22nd, the 3rd tooth 23 and the 4th tooth 24, wherein the first tooth 21 and the second tooth 22 are punched out teeth, the 3rd tooth 23 and the 4th tooth 24 are to repair hole
Tooth, wherein diameter big 0.1mm-0.15mm of the diameter of the first tooth than described punch, the diameter of the second tooth is more straight than the first tooth
The big 0.1mm-0.15mm in footpath, the diameter of described punch 1 is equal to punching initial diameter.Pass through punch 1, the first tooth in the embodiment
21 and second tooth 22 three roads broaching complete punching initial parameter to target component processing, then by the 3rd tooth 23 and the 4th
Tooth 24, which is realized, repaiies hole, further improves the perpendicularity up and down of the endoporus cylinder of punching.
Although the embodiment two defines that punched out teeth is two, it is also two to repair hole tooth, but those skilled in the art are complete
As long as can realize it is understood that punched out teeth is set to be all higher than or equal to 1 with the number for repairing hole tooth entirely and improve the upper of endoporus
The technique effect of lower perpendicularity.
Found simply by substantial amounts of engineering test, using two punched out teeth and two technical schemes for repairing hole tooth, light
Band is that inner diameter cylindrical body vertical height can reach 90% of thickness of link plates or so, and common technological requirement only requires the light of carrier bar
Bright band between 4/5 to the 6/7 of thickness of link plates, therefore the embodiment technique effect have been over common normal technique will
Ask, and reduce punched out teeth and/or repair the quantity of hole tooth and can not realize identical technique effect, for example with a punched out teeth and
One is repaiied hole tooth or a punched out teeth and two are repaiied hole tooth or two punched out teeth and a scheme for repairing hole tooth, its technique effect
Show that euphotic belt floats in 4/5 left and right of thickness of link plates, without big change；Further increase punched out teeth and/or repair hole
The quantity of tooth does not realize big lifting in terms of technique effect yet, and 90% or so is also maintained at substantially, and processes and be more than 2
The punched out teeth of the individual above repaiies the highly significant that the cost of hole tooth is but lifted.Therefore it is applicant's understanding that using two punched out teeth and
Two repair hole tooth technical scheme compared with other technologies scheme, realize unexpected technique effect, and this scheme
It is the preferred embodiment that applicant is finally determined by lot of experiments, those skilled in the art do not have motivation to do similar examination
Test, the technical scheme also cannot get by conventional experiment.
Further, as shown in figure 1, the diameter of the second round platform connecting portion 7 is from pull bar 3 to the direction of broaching tool location division 4
Cumulative, the diameter of broaching tool location division 4 is more than the diameter of pull bar 3.The diameter of broaching tool afterbody 5 is more than the diameter of broaching tool location division 4.
In addition to above content, structure and the combination broach described in embodiment one of the combination broach described in embodiment two
Structure it is identical, described punch 1, tooth 2, pull bar 3, broaching tool location division 4 and broaching tool afterbody 5 remains as integrally formed knot
Structure.
Embodiment three
As shown in Fig. 2 described punched out teeth includes the first basal plane 211, the second basal plane 212, the 3rd basal plane with hole tooth is repaiied
213 and the 4th basal plane 214, wherein the angle between the first basal plane 211 and horizontal plane is A, between the second basal plane 212 and vertical plane
Angle be B, it is orthogonal between horizontal plane and vertical plane, pass through curved surfaces between the first basal plane 211 and the second basal plane 212
Groove is formed at round and smooth connection, the curved surfaces between the first basal plane 211 and the second basal plane 212；Second basal plane 212 and the 3rd
Basal plane 213 forms crown in intersection；The width of 3rd basal plane 213 be L, the 4th basal plane 214 from the 3rd basal plane 213 and crown
The position that distance is equal to the width of the 3rd basal plane 213 is tilted down.
Wherein included angle A, B and width L are all higher than zero.As preferred embodiment, between the first basal plane 211 and horizontal plane
Included angle A is 30 °；Included angle B between second basal plane 212 and vertical plane is 12 °, and the width L of the 3rd basal plane 213 is 2mm, described to hang down
Face directly and be mutually perpendicular to horizontal plane.
Found by substantial amounts of engineering test, the specific value of included angle A, B and width L has specific shadow to euphotic belt
Ring, the technical scheme that A is 30 °, B is 12 °, L is 2mm coordinates two punched out teeth and two technical schemes for repairing hole tooth to make light
Bright band is that inner diameter cylindrical body vertical height can reach 95% of thickness of link plates or so, and other values can not realize this technology
Effect, applicant has done substantial amounts of by converting included angle A, B and width L value and changing punched out teeth and repair the quantity of hole tooth
Experiment, finds the euphotic belt of technical scheme under other values less than the 6/7 of thickness of link plates.Therefore it is applicant's understanding that adopting
Be 30 ° with A, B is 12 °, L is 2mm technical scheme compared with other technologies scheme, realize unexpected technique effect,
And this scheme is the preferred embodiment that applicant is finally determined by lot of experiments, those skilled in the art do not have motivation
Similar experiment is done, the technical scheme also cannot get by conventional experiment.
In addition to above content, described in the structure and embodiment one and embodiment two of the combination broach described in embodiment three
The structure of combination broach can be will not be repeated here with identical.
Compared with prior art, NEW TYPE OF COMPOSITE broaching tool described herein can save more than 50% in carrier bar production process
Manual time, the electricity charge and frock, can bring very big economic benefit.Using NEW TYPE OF COMPOSITE broaching tool of the present invention, once
Die-filling, die trial, debugging, workpiece present less than 1 working day that original needs 2 working days and could completed can complete, and original needs frock
With punch and broaching tool, it now need to only match somebody with somebody a kind of new broaching tool.For example, if 300 meters of nonstandard chains of order, pitch 100,
Outer plate 3000, inner plate 3000, after conventional technique blanking, first the perforating die of dress outer plate, die trial, debugging, various
Parameter starts punching afterwards in place, needs 2 working days, then changes the pulling eye mould of outer plate, die trial, debugging, then pulling eye.And apply this hair
Bright described NEW TYPE OF COMPOSITE broaching tool, i.e. once die-filling, die trial, debugging is once completed.Former punching twice is drawn, and is now once completed, original is needed
2 working days, now less than 1 working day can complete.
Chain conveyer product has been included in national " industrial strong basis project ".Chain industry in all automation process flows all
Have, including metallurgy industry, either sheet material, bar, wire rod all be unable to do without various peculiar nonstandard chains, auto production line, wash
Clothing machine, refrigerator, food, drinks, papermaking, every use plant equipment and automation streamline equipment, long distance delivery, various heating are dried
Dry production, sheet alloy production line are required for various nonstandard chains.Hot environment, pollution environment, low temperature environment, it is various
The application of nonstandard chain is more and more wide.
Exported at present according to customs by our chain employer's organizations and domestic chain industry assessment, the chain of 2014 is complete
State is sold at 21,500,000,000 yuan or so, wherein nonstandard chain and 40A, B standard roller chain and various heavy chain bars account for 50% or so.
By tonnage at 82.7 ten thousand tons, its intermediate plate is at 41.35 ten thousand tons, and average carrier bar is calculated by 350g, 1,200,000,000 carrier bars, average each work
Make day to produce 1500, need 800,000 working days, such as press traditional handicraft, second die-filling, configuration repaiies hole tool and is multiplied by 0.1 and is
Number, such as first time punching press NEW TYPE OF COMPOSITE broaching tool technique productions described herein, you can save 880,000 working days, Mei Gegong
Make day to calculate about 1.32 hundred million yuan by 150 yuan of labor costs, we are by this new technology of 1/3 enterprise in chain industry, you can saving is opened
44,000,000 yuan of branch.
The NEW TYPE OF COMPOSITE broaching tool technique has technical requirements to all sheet metal punchings to punching, it is desirable to which aperture is vertical all to fit
With.
The general principle and principal character and advantages of the present invention of the present invention has been shown and described above.The technology of the industry
Personnel are it should be appreciated that the present invention is not limited to the above embodiments, and the simply explanation described in above-described embodiment and specification is originally
The principle of invention, without departing from the spirit and scope of the present invention, various changes and modifications of the present invention are possible, these changes
Change and improvement all fall within the protetion scope of the claimed invention.The claimed scope of the invention by appended claims and its
Equivalent thereof.
Claims (9)
1. a kind of NEW TYPE OF COMPOSITE broaching tool, it is characterised in that including：Punch, tooth, pull bar, broaching tool location division and broaching tool afterbody, it is described
Punch and tooth between be provided with the first tapered round platform connecting portion of direction of the diameter from punch to tooth, described pull bar and broaching tool
The second round platform connecting portion is provided between location division, broaching tool location division is arranged between the second round platform connecting portion and broaching tool afterbody,
Described tooth includes diameter and is more than punching initial diameter and is less than the punched out teeth and diameter of punching aimed dia equal to punching target
Diameter repaiies hole tooth, and described punched out teeth repaiies hole dental transition close to described punch than described, the diameter of described punch is equal to
Punching initial diameter；Described punching aimed dia 0.3mm-0.5mm bigger than punching initial diameter, the diameter of described punched out teeth
0.1mm-0.15mm bigger than punching initial diameter, and in the case where punched out teeth is multiple, along from punch to broaching tool afterbody
The diameter of direction punched out teeth increase 0.1mm-0.15mm step by step.
2. NEW TYPE OF COMPOSITE broaching tool according to claim 1, it is characterised in that described punch, tooth, pull bar, broaching tool positioning
The structure that portion and broaching tool afterbody are formed in one.
3. NEW TYPE OF COMPOSITE broaching tool according to claim 1, it is characterised in that described tooth includes the first tooth, the second tooth, the
Three teeth and the 4th tooth, wherein the first tooth and the second tooth are punched out teeth, the 3rd tooth and the 4th tooth is repair hole tooth, wherein the first tooth is straight
Footpath is than the big 0.1mm-0.15mm of diameter of described punch, diameter big 0.1mm-0.15mm of the diameter than the first tooth of the second tooth.
4. NEW TYPE OF COMPOSITE broaching tool according to claim 3, it is characterised in that the diameter of the second described round platform connecting portion from
Pull bar is cumulative to the direction of broaching tool location division, and the diameter of broaching tool location division is more than the diameter of pull bar, and the diameter of broaching tool afterbody is more than
The diameter of broaching tool location division.
5. NEW TYPE OF COMPOSITE broaching tool according to claim 4, it is characterised in that described punched out teeth and repair hole tooth and include the
One basal plane, the second basal plane, the 3rd basal plane and the 4th basal plane, wherein the angle between the first basal plane and horizontal plane is more than zero, second
Angle between basal plane and vertical plane is more than zero, orthogonal between horizontal plane and vertical plane, the first basal plane and the second basal plane it
Between by the round and smooth connection of curved surfaces, at the curved surfaces between the first basal plane and the second basal plane formed groove；Second basal plane
With the 3rd basal plane crown is formed in intersection；The width of 3rd basal plane is more than zero, the 4th basal plane from the 3rd basal plane and crown away from
Position from the width equal to the 3rd basal plane is tilted down.
6. NEW TYPE OF COMPOSITE broaching tool according to claim 5, it is characterised in that between the first described basal plane and horizontal plane
Angle is 30 °；Angle between second basal plane and vertical plane is 12 °, and the width of the 3rd basal plane is 2mm, the vertical plane and water
Plane is mutually perpendicular to.
7. NEW TYPE OF COMPOSITE broaching tool according to claim 6, it is characterised in that combination broach is sequentially passed through at preheating twice
Reason, Quenching Treatment, 4 tempering process, ice-cold processing and straightening technology.
8. NEW TYPE OF COMPOSITE broaching tool according to claim 7, it is characterised in that described the pre-heat treatment twice is included for the first time
Preheating and second of preheating, first time preheating temperature is 500-550 DEG C, and preheating time first time is 1 hour；Second of preheating temperature
Spend for 850 DEG C, second of preheating time is 12 minutes；Described Quenching Treatment is the heating-up temperature using 1170 DEG C -1190 DEG C
Quenched, the heat time is 10-15 seconds, cooled down after the completion of heating using 80 DEG C -120 DEG C of cooling oil, cool time
It is identical with the heat time.
9. NEW TYPE OF COMPOSITE broaching tool according to claim 8, it is characterised in that 4 times described tempering process tempering 2.5 every time
Hour, temperature is 540 DEG C -580 DEG C, and the combination broach after tempering is cooled to after room temperature every time is tempered next time again；
Described ice-cold processing makes combination broach be heated to 200 DEG C in cabinet-type electric furnace first, is incubated two hours, is carried out at -70 DEG C
Ice-cold processing, ice-cold processing time maintains 15 minutes；Combination broach is placed on alignment workbench two ends by described straightening technology
V-arrangement support block on, two ends is kept highly consistent, there is the position of bend relief to be heated with natural gas spraying gun in combination broach and dry
Roasting, temperature is higher than 300 DEG C and less than temperature, and on combination broach surface, presentation is lilac simultaneously, using press rods to curved
Bent raised position pressurization, makes the quenched martensite at the position be changed into tempered martensite.
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| CN201510703810.8A CN105171116B (en) | 2015-10-26 | 2015-10-26 | A kind of NEW TYPE OF COMPOSITE broaching tool |
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|---|---|---|---|
| CN201510703810.8A CN105171116B (en) | 2015-10-26 | 2015-10-26 | A kind of NEW TYPE OF COMPOSITE broaching tool |
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| CN105171116A CN105171116A (en) | 2015-12-23 |
| CN105171116B true CN105171116B (en) | 2017-08-25 |
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| CN201510703810.8A Active CN105171116B (en) | 2015-10-26 | 2015-10-26 | A kind of NEW TYPE OF COMPOSITE broaching tool |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109454151A (en) * | 2018-11-20 | 2019-03-12 | 临汾市新晋汾焦铁设备制造有限公司 | Punching compound punch and hole punched device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10243324A1 (en) * | 2002-09-18 | 2004-04-01 | Bayerische Motoren Werke Ag | Clearing tool for processing a bearing cap recess in the crankcase of an internal combustion engine is designed as a clearing beam equipped with punches, pressure tools, and blades |
| CN102699420A (en) * | 2012-06-27 | 2012-10-03 | 成都航威精密刃具有限公司 | Combined broach for machining double straight square holes and using method for combined broach |
| CN202877631U (en) * | 2012-10-12 | 2013-04-17 | 江苏新瑞重工科技有限公司 | Reduction sleeve structure of automatic broach for transforming ISO50 tapered hole to ISO40 tapered hole |
| CN203578913U (en) * | 2013-11-28 | 2014-05-07 | 重庆铁马工业集团有限公司 | Specially-shaped hole pull broach |
| CN204171447U (en) * | 2014-09-04 | 2015-02-25 | 浙江诸暨建设链条制造有限公司 | A kind of novel broaching tool |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004322239A (en) * | 2003-04-23 | 2004-11-18 | Fuji Heavy Ind Ltd | Working tool |
-
2015
- 2015-10-26 CN CN201510703810.8A patent/CN105171116B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10243324A1 (en) * | 2002-09-18 | 2004-04-01 | Bayerische Motoren Werke Ag | Clearing tool for processing a bearing cap recess in the crankcase of an internal combustion engine is designed as a clearing beam equipped with punches, pressure tools, and blades |
| CN102699420A (en) * | 2012-06-27 | 2012-10-03 | 成都航威精密刃具有限公司 | Combined broach for machining double straight square holes and using method for combined broach |
| CN202877631U (en) * | 2012-10-12 | 2013-04-17 | 江苏新瑞重工科技有限公司 | Reduction sleeve structure of automatic broach for transforming ISO50 tapered hole to ISO40 tapered hole |
| CN203578913U (en) * | 2013-11-28 | 2014-05-07 | 重庆铁马工业集团有限公司 | Specially-shaped hole pull broach |
| CN204171447U (en) * | 2014-09-04 | 2015-02-25 | 浙江诸暨建设链条制造有限公司 | A kind of novel broaching tool |
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| CN105171116A (en) | 2015-12-23 |
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Effective date of registration: 20200814 Address after: No.68 Xinglong Road, Paitou Town, Zhuji City, Shaoxing City, Zhejiang Province Patentee after: ZHEJIANG ZHUJI CONSTRUCTION CHAIN MANUFACTURING Co.,Ltd. Address before: 200000 No. 786, 1 Julu Road, Shanghai, Jingan District Patentee before: Xuan Guojian |
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Denomination of invention: A new compound broach Effective date of registration: 20211206 Granted publication date: 20170825 Pledgee: Paitou sub branch of Zhejiang Zhuji Rural Commercial Bank Co., Ltd Pledgor: ZHEJIANG ZHUJI CONSTRUCTION CHAIN MANUFACTURING Co.,Ltd. Registration number: Y2021980013954 |