CN105171116A - Novel combination broach - Google Patents
Novel combination broach Download PDFInfo
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- CN105171116A CN105171116A CN201510703810.8A CN201510703810A CN105171116A CN 105171116 A CN105171116 A CN 105171116A CN 201510703810 A CN201510703810 A CN 201510703810A CN 105171116 A CN105171116 A CN 105171116A
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Abstract
The invention discloses a novel combination broach. The novel combination broach comprises a punching nail, teeth, a pull rod, a broach positioning portion and a broach tail portion; a first circular table connection portion with the diameter gradually shrinking in the direction from the punching nail to the teeth is arranged between the punching nail and the teeth, a second circular table connection portion is arranged between the pull rod and the broach positioning portion, and the broach positioning portion is arranged between the second circular table connection portion and the broach tail portion; the teeth comprise hole punching teeth with the diameter larger than the punched hole initial diameter and smaller than the punched hole target diameter and hole repair teeth with the diameter equal to the punched hole target diameter, the hole punching teeth are closer to the punching nail than the hole repair teeth, and the diameter of the punching nail is equal to the punched hole initial diameter. Compared with the prior art, by means of the novel combination broach, the time consumed in assembling of a mold and testing of the mold and a tool in the second working effect is reduced; meanwhile, the technical problem in the prior art, accurate positioning in the second hole repair technology is not easy, and an euphotic zone, namely, the perpendicular portion of the inner wall of the aperture of a punched hole, 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, large gauge 40A, more than B standard roller chain and various heavy bent plate chains carrier bar in process of production need to carry out punching to it, thus are processed to form required aperture on interior outer plate.Existing process of processing on carrier bar is first punch, by pressing equipment, punching is carried out to carrier bar, after punch carries out punching to carrier bar, the internal diameter top and bottom in hole are off plumb certainly, reason is the endoporus parameter of the cooperation die in a traditional way of punch and die must be amplify about 0.3 ~ 0.5mm on punch parameter basis, depending on thickness of link plates, carrier bar is more than 15 millimeters, the coefficient that die internal diameter amplifies also will strengthen, and (die internal diameter coefficient increases will depending on the hardness of rapidoprint, material hardness is more than more than HRC18, die internal diameter enhancement coefficient is relatively less, otherwise want large).The result that it is rushed out: aperture inwall vertical component is very little, be about thickness of link plates 1/10 ~ 1/6 between, this area is commonly called as euphotic belt.Must be that formation one is little large tubaeform below above, its error be between 0.3 ~ 0.5mm.If by the direct installation shaft of this state behind this hole, because axle only has sub-fraction with contacting of hole wall, very little with the stress surface of hole wall in the course of work of such axle, axle and carrier bar joint fastness reduce, and the aperture of carrier bar expands very soon, thus reduce the service life of carrier bar, so need under normal circumstances to repair hole again to hole, repairing hole mode has several, comprise secondary punching, reamer fraising and broaching tool broaching hole, repairing the result behind hole is that the perpendicularity in aperture is significantly increased, and this area is called that euphotic belt increases.Repairing hole technique at present needs second time die-filling, die trial, debugging, the processing mode of twice processing needs to be completed by two steps, directly increases the production time of carrier bar processing, reduces the efficiency of mould and frock, and need to be equipped with punch and broaching tool, add the production cost of enterprise. simultaneouslyIn prior art, second is repaiied hole technique existence and is located the technical problem of not easily fixing in addition.
The production work of applicant's long campaigns chain, all patent application is had in the processing technology and broaching tool of chain, such as document CN103433419A is the patent of invention that the applicant applies on August 6th, 2013, this application obtains mandate at present, describe a kind of processing technology of chain in detail, comprise: (1) blanking, use pressing equipment that workpiece is carried out punching press; (2) anneal, after blanking completes, carry out 800 degree to the 900 degree continuous annealing of 5 hours to workpiece, Rockwell hardness is at below 12HRC; (3) phosphorating treatment, under normal temperature, is immersed in workpiece in Phosphating Solution, and soak time is 2-3 hour; (4) press-bending and punching, bend to workpiece with bending die; Again workpiece is centered, use punch press punching; (5) quench, workpiece is put in stove and quenches, hardening heat is 860 degree; (6) tempering, temperature is 380 degree, and the time is 90 minutes, and Rockwell hardness is at 38-45HRC; (7) fine finishining, fixes workpiece with mould, then mould is put on grinding machine together with workpiece processes.The program needs to be completed by least two steps, and operating procedure is more loaded down with trivial details, and production cost is higher.
Document CN204171447U is the utility model patent that the applicant applies on September 4th, 2014, this application obtains mandate at present, disclose a kind of broaching tool, comprise handle of a knife 1, handle of a knife upper end arranges the broaching tooth 2 of multiple its outer peripheral face of annular spread, handle of a knife top 3 is little in upper end, lower end large, and the cross section at handle of a knife top 3 is in the polygon be made up of five limits, and the length of side on polygonal every bar limit is equal; Broaching tool is provided with multiple on pressing equipment, broaching tool is fixed on pressing equipment by installed part, thus porous processing can be carried out by counter plate simultaneously, first handle of a knife top 3 and the plate contact of chain realize the punching of counter plate, then broaching tooth 2 counter plate on handle of a knife is processed, thus realizes shaping required hole on panel.Although the program can improve the production efficiency of broaching tool, but the applicant does not complete whole improvement tests when this utility model application day submits to, the necessity be all also improved in the concrete structure, service life, detail parameters etc. of broaching tool.
Summary of the invention
The present invention, in order to solve the problem, provides a kind of NEW TYPE OF COMPOSITE broaching tool.
Combination broach of the present invention comprises punch, tooth, pull bar, broaching tool location division and broaching tool afterbody, the first round platform connecting portion of the direction convergent of diameter from punch to tooth is provided with between described punch and tooth, be provided with diameter between described pull bar and broaching tool location division and become the second large round platform connecting portion from pull bar to the direction of broaching tool location division, broaching tool location division is arranged between the second round platform connecting portion and broaching tool afterbody, described tooth comprise diameter be greater than punching initial diameter and be less than that the punched out teeth of punching aimed dia and diameter equal punching aimed dia repair hole tooth, described punched out teeth repaiies hole dental transition near described punch than described, the diameter of described punch equals punching initial diameter.
The structure that described punch, tooth, pull bar, broaching tool location division and broaching tool afterbody are formed in one.
Described punching aimed dia 0.3mm-0.5mm larger than punching initial diameter, the diameter 0.1mm-0.15mm larger than punching initial diameter of described punched out teeth, and when punched out teeth is multiple, increase 0.1mm-0.15mm step by step along from punch to the diameter of the direction punched out teeth of broaching tool afterbody.
Described tooth comprises 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 are for repairing hole tooth, the wherein diameter of the first tooth 0.1mm-0.15mm larger than the diameter of described punch, the diameter 0.1mm-0.15mm larger than the diameter of the first tooth of the second tooth.
The diameter of the second described round platform connecting portion is cumulative to the direction of broaching tool location division from pull bar, and the diameter of broaching tool location division is greater than the diameter of pull bar, and the diameter of broaching tool afterbody is greater than the diameter of broaching tool location division.
Described punched out teeth and repair hole tooth and include the first basal plane, the second basal plane, the 3rd basal plane and the 4th basal plane, angle wherein between the first basal plane and horizontal plane is greater than zero, angle between second basal plane and vertical plane is greater than zero, orthogonal between horizontal plane and vertical plane, be connected by curved surfaces is round and smooth between first basal plane with the second basal plane, the curved surfaces place between the first basal plane and the second basal plane forms groove; Second basal plane and the 3rd basal plane form crown in intersection; The width of the 3rd basal plane is greater than zero, the 4th basal plane from the 3rd basal plane to equal the position of the width of the 3rd basal plane downward-sloping with crown distance.
Angle between first basal plane and horizontal plane is 30 °; Angle between second basal plane and vertical plane is 12 °, and the width of the 3rd basal plane is 2mm, and described vertical plane and horizontal plane are mutually vertical.
Combination broach successively through twice the pre-heat treatment, Quenching Treatment, 4 tempering process, ice-cold process and straightening technology.
Twice described the pre-heat treatment comprises first time preheating and second time preheating, and preheat temperature is 500-550 DEG C for the first time, and preheating time first time is 1 hour; Second time preheat temperature is 850 DEG C, and preheating time is 12 minutes for the second time.
Described Quenching Treatment is that the heating-up temperature of employing 1170 DEG C-1190 DEG C is quenched, and the heat time is 10-15 second, and the cold oil having heated rear employing 80 DEG C-120 DEG C cools, and cool time is identical with the heat time.
The described each tempering of 4 tempering process 2.5 hours, temperature is 540 DEG C-580 DEG C, and the broaching tool after each tempering carries out tempering next time after being cooled to room temperature again.
First described ice-cold process makes combination broach in cabinet-type electric furnace, be heated to 200 DEG C, and be incubated two hours, at-70 DEG C, carry out ice-cold process, the ice-cold processing time maintains 15 minutes.
Broaching tool is placed on the V-arrangement back-up block at alignment workbench two ends by described straightening technology, two ends are made to keep highly consistent, the position natural gas spraying gun heated baking of bend relief is had at broaching tool, temperature is higher than 300 DEG C and lower than temperature, broaching tool surface presentation is lilac while, adopt press rods to the position pressurization of bend relief, make the quenched martensite at this position change tempered martensite into.
Beneficial effect of the present invention is:
NEW TYPE OF COMPOSITE broaching tool of the present invention compared with prior art, significantly improve work efficiency, and improving at least 20% qualitatively, save the time that die-filling, the die trial of second work efficiency and frock expend, save time power saving, solves second in prior art simultaneously and repair the technical problem that hole locating not easily fixes.Adopt NEW TYPE OF COMPOSITE broaching tool of the present invention can improve the perpendicularity up and down of endoporus, the vertical component of the inwall in the aperture in the hole that " euphotic belt " is namely gone out is improved.
Accompanying drawing explanation
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 outer plate of conventional machining process making and the assembling schematic diagram of axle.
Fig. 4 is the outer plate of combination broach of the present invention making and the assembling schematic diagram of axle.
In figure: 1-punch, 2-tooth, 3-pull bar, 4-broaching tool location division, 5-broaching tool afterbody, 6-first round platform connecting portion, 7-second round platform connecting portion, 21-first tooth, 22-second tooth, 23-the 3rd tooth, 24-the 4th tooth, 211-first basal plane, 212-second basal plane, 213-the 3rd basal plane, 214-the 4th basal plane, 31-axle, 32-outer plate, A-first angle, B-second angle, L-the 3rd base width.
Detailed description of the invention
Be clearly and completely described the technical scheme in the application below in conjunction with accompanying drawing, obviously, described embodiment is only a part of embodiment of the application, instead of whole embodiments.Based on the embodiment in the application, the every other embodiment that those of ordinary skill in the art obtain under the prerequisite not making creative work, all belongs to the scope of the application's protection.
Embodiment one
As shown in Figure 1: combination broach of the present invention comprises punch 1, tooth 2, pull bar 3, broaching tool location division 4 and broaching tool afterbody 5, be provided with between described punch 1 and tooth 2 diameter from punch 1 the first round platform connecting portion 6 to the direction convergent of tooth 2, be provided with diameter between described pull bar 3 and broaching tool location division 4 and become the second large round platform connecting portion 7 from pull bar 3 to the direction of broaching tool location division 4, pull bar 3 is arranged between tooth 2 and the second round platform connecting portion 7, broaching tool location division 4 is arranged between the second round platform connecting portion 7 and broaching tool afterbody 5, described tooth 2 comprise diameter be greater than punching initial diameter and be less than that the punched out teeth of punching aimed dia and diameter equal punching aimed dia repair hole tooth, described punched out teeth repaiies hole dental transition near described punch 1 than described, the diameter of described punch 1 equals punching initial diameter.
The structure that described punch 1, tooth 2, pull bar 3, broaching tool location division 4 and broaching tool afterbody 5 are formed in one.The diameter of the second described round platform connecting portion is cumulative to the direction of broaching tool location division from pull bar, and the diameter of broaching tool location division is greater than the diameter of pull bar, and the diameter of broaching tool afterbody is greater than the diameter of broaching tool location division.The combination broach of this structure is adopted greatly to extend the service life of broaching tool.
Because punch 1 and the tooth 2 that comprises punched out teeth and repair hole tooth combine by described combination broach, and the physical characteristic at pull bar 3, broaching tool location division 4 and each position of broaching tool afterbody 5 all has difference, adopt manufacturing processes customary cannot meet this combination broach to sharpness, wearability, high rigidity, high tenacity and long-life requirement.Applicant has been developed into special processing technology through lot of experiments, and this processing technology is to the limited tailor-made use of parameter index such as sharpness, wearability, hardness of this combination broach itself.
Due to the special shape of the combination broach that punch 1, tooth 2, pull bar 3, broaching tool location division 4 and broaching tool afterbody 5 are formed, it is made in quenching process, easily to produce distortion and crack.Therefore before quenching, annealing etc. further heat treatment, first through twice the pre-heat treatment.First time, preheat temperature was 500-550 DEG C, and preheating time first time is 1 hour; Second time preheat temperature is 850 DEG C, and preheating time is 12 minutes for the second time.Preheating time is unsuitable long, otherwise easily causes decarburization and the corrosion of broaching tool.
In order to ensure that broaching tool has good hardness and toughness, prevent generation and the distortion of crackle, ensure that carbide melts well, and avoid grain growth, prevent broaching tool mechanical performance and cutting ability reduction after quenching, adopt the heating-up temperature of 1170 DEG C-1190 DEG C to quench, the heat time is 10-15 second, the cold oil having heated rear employing 80 DEG C-120 DEG C cools, and cool time is identical with the heat time.
In order to ensure that retained austenite changes completely, adopt 4 tempering process, each tempering 2.5 hours, temperature is 540 DEG C-580 DEG C, and the broaching tool after each tempering carries out tempering next time after being cooled to room temperature again.
In order to prevent further distortion, make broaching tool in use can keep dimensionally stable preferably, keep broaching tool profile correct, improve and drawn the quality of part, extend the service life of broaching tool, described combination broach is also through ice-cold process, first in cabinet-type electric furnace, 200 DEG C are heated to, be incubated two hours, at-70 DEG C, carry out ice-cold process, the ice-cold processing time maintains 15 minutes.
Described combination broach is also further across straightening technology, broaching tool is placed on the V-arrangement back-up block at alignment workbench two ends, two ends are made to keep highly consistent, the position natural gas spraying gun heated baking of bend relief is had at broaching tool, temperature is higher than 300 DEG C and lower than temperature, broaching tool surface presentation is lilac while, adopt press rods to the position pressurization of bend relief, the quenched martensite at this position is made to change tempered martensite into, because the specific volume of tempered martensite is less, produce convergent force, add the pressurization of press rods, the position bent is flattened directly.
Fig. 3 shows the outer plate that conventional machining process makes.In the carrier bar production process of traditional chain, particularly nonstandard chain large gauge chain and various heavily loaded chain, in the technique of carrier bar punching, has a procedure of punching always.In punch work, punching aperture is out difficult to accomplish that aperture inner cylinder is vertical, the hole rushed out must be the hole (as shown in Figure 3) of "/" font, namely the aperture on the top in hole is the same with the parameter of the diameter of punch, and the aperture of the bottom in hole must be the parameter in die aperture, as in production process, the aperture that we require is
and the result top rushed out is
bottom must be
(+0.3^+0.5), this will process again, and this area is commonly called as " repairing hole ", if any 100 or more to 10,000 interior outer chain sheets, after first punching completes, die-filling again, be equipped with and do second and repair hole, usual manner year after year, directly increase the production time of carrier bar processing, reduce the efficiency of mould and frock, and need to be equipped with punch and broaching tool simultaneously, add the production cost of enterprise.If do not reprocessed, namely the words of repairing hole operation are not carried out, inner diameter cylindrical body vertical height is very low, this area is commonly called as " euphotic belt " is very short, the vertical component of the inwall in the aperture in the hole that " euphotic belt " is namely gone out, usually is only 1/6 or 1/10 of sheet metal thickness, that is formed one little large tubaeform below above, its error is between 0.3mm-0.5mm.If by the direct installation shaft of this state behind this hole, as shown in Figure 3, contact on (top of the outer plate 32 in Fig. 3) because axle 31 and the hole wall of the punching on outer plate 32 only have sub-fraction, very little with the stress surface of hole wall in the course of work of such axle, axle and carrier bar joint fastness reduce, and the aperture of carrier bar expands very soon, thus reduce the service life of carrier bar, such workpiece is as after inflow next procedure, and assembling chain is out certainly not long for service life.
In order to just can be ensured the perpendicularity of punching inner cylinder by time processing, the application adopts the diameter of punch 1 to equal the initial parameter (i.e. punching initial diameter) in required aperture, the diameter of punched out teeth is greater than punching initial diameter and is less than punching aimed dia, the diameter repairing hole tooth equals the target component in required aperture (i.e. punching aimed dia), by punch 1, punched out teeth and the acting in conjunction of repairing hole tooth, one-shot completes punching and repaiies hole two procedures, directly realizes the processing of punching aperture from initial parameter to target component.
The exemplarily embodiment of property, illustrates initial parameter and the target component in punching aperture.The target component (i.e. punching aimed dia) in punching aperture is determined by the technological requirement of chain, arranges according to actual needs, such as, need
punching, just punching aimed dia is set as 15mm.The initial parameter (i.e. punching initial diameter) in punching aperture to be then empirically worth according to target component by processing root and to calculate, as a rule, and punching initial diameter 0.3mm-0.5mm less of punching aimed dia.
Such as, the target component of punching (i.e. punching aimed dia) is needed to be
namely hole internal diameter is 15mm, in order to the inside realizing hole is the cylinder that upper and lower perpendicularity is consistent, the diameter adopting punch 1 is 15mm-(0.3mm-0.5mm), namely the Initial parameter sets in punching aperture is 14.5-14.7mm, the diameter 0.1mm-0.15mm larger than punching initial diameter (i.e. the initial parameter in punching aperture) of punched out teeth, namely the diameter of punched out teeth is set as 14.6-14.8mm or 14.65-14.85mm, the diameter repairing hole tooth is set as the target component (i.e. punching aimed dia) needing punching, namely the diameter repairing hole tooth is set as 15mm, the upper diameter of the endoporus impacted by punch 1 is like this 14.5-14.7mm, lower diameter is 15mm, the upper diameter of the endoporus impacted by punched out teeth is 14.6-14.8mm or 14.65-14.85mm, hole tooth secondary pulse is repaiied subsequently by diameter 15mm, after secondary pulse completes, endoporus is when considering tolerance, the cylindrical shape substantially descending perpendicularity consistent can be realized, namely repair after hole tooth completes secondary pulse, diameter of bore is basically identical up and down, be 15mm.The outer plate adopting the combination broach of the application to make and the assembling schematic diagram of axle are as shown in Figure 4, can find out, after axle 31 inserts the punching on outer plate 32, because the perpendicularity up and down of endoporus is basically identical, axle 31 increases greatly with the contact area of endoporus hole wall, and namely euphotic belt increases greatly.The cooperation of axle and chain plate hole is interference fit, and axle macropore is little, and the stress surface that assembling carrier bar axis hole and axle coordinate becomes large, and the joint fastness between axle and carrier bar improves greatly, and the joint fastness between axle and carrier bar is the important key index of chain products.
As previously mentioned, punching aimed dia 0.3mm-0.5mm larger than punching initial diameter, the diameter 0.1mm-0.15mm larger than punching initial diameter of described punched out teeth, and when punched out teeth is multiple, increase 0.1mm-0.15mm step by step along from punch to the diameter of the direction punched out teeth of broaching tool afterbody.
A large amount of engineering tests shows, NEW TYPE OF COMPOSITE broaching tool of the present invention is applicable to the carrier bar processing of various aperture and various thickness, and being specially adapted to punching aperture is
(namely aperture is 8mm-65mm), the chain processing of thickness of link plates within the scope of 4-38mm.Particularly when thickness of link plates is greater than 4.5 millimeters, the function of this NEW TYPE OF COMPOSITE broaching tool is that other mould patterns are irreplaceable, save the working time of a procedure, usually say that work efficiency is enhanced about more than once, save frock simultaneously, use this NEW TYPE OF COMPOSITE broaching tool time, preferably adopt lubricant (cost is very low) with the use of, effect is better.
Embodiment two
As preferred embodiment, combination broach shown in Fig. 1 has four teeth, namely tooth 2 comprises the first tooth 21, second tooth 22, the 3rd tooth 23 and the 4th tooth 24, wherein the first tooth 21 and the second tooth 22 are punched out teeth, 3rd tooth 23 and the 4th tooth 24 are for repairing hole tooth, the wherein diameter of the first tooth 0.1mm-0.15mm larger than the diameter of described punch, the diameter 0.1mm-0.15mm larger than the diameter of the first tooth of the second tooth, the diameter of described punch 1 equals punching initial diameter.Broach the initial parameter of punching to the processing of target component by three roads of punch 1, first tooth 21 and the second tooth 22 in this embodiment, has then been realized repairing hole by the 3rd tooth 23 and the 4th tooth 24, improve the cylindrical upper and lower perpendicularity of endoporus of punching further.
Although it is two that this embodiment two defines punched out teeth, repair hole tooth and be also two, but those skilled in the art can understand completely, as long as punched out teeth is set to all be more than or equal to 1 with the number of repairing hole tooth, can realize the technique effect of the perpendicularity up and down improving endoporus.
Just found by a large amount of engineering tests, two punched out teeth and two are adopted to repair the technical scheme of hole tooth, euphotic belt and inner diameter cylindrical body vertical height can reach about 90% of thickness of link plates, common technological requirement only requires that the euphotic belt of carrier bar is between 4/5 to 6/7 of thickness of link plates, therefore the technique effect of this embodiment has exceeded common normal technological requirement, and the quantity reducing punched out teeth and/or repair hole tooth cannot realize identical technique effect, a punched out teeth and one is such as adopted to repair hole tooth, or a punched out teeth and two repair hole tooth, or two punched out teeth and one repair the scheme of hole tooth, its technique effect shows that euphotic belt all floats in the left and right of 4/5 of thickness of link plates, there is no large change, further increase punched out teeth and/or the quantity of repairing hole tooth do not realize large lifting in technique effect yet, substantially just maintain about 90% yet, and the highly significant that processing promotes more than the punched out teeth of more than 2 or the cost of repairing hole tooth.Therefore applicant thinks, adopt two punched out teeth and two technical schemes of repairing hole tooth compared with other technologies scheme, achieve unforeseeable 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 to do similar test, can not get this technical scheme by the test of routine yet.
Further, as shown in Figure 1, the diameter of the second round platform connecting portion 7 is cumulative to the direction of broaching tool location division 4 from pull bar 3, and the diameter of broaching tool location division 4 is greater than the diameter of pull bar 3.The diameter of broaching tool afterbody 5 is greater than the diameter of broaching tool location division 4.
Except above content, the structure of the combination broach described in embodiment two is identical with the structure of the combination broach described in embodiment one, the structure that described punch 1, tooth 2, pull bar 3, broaching tool location division 4 and broaching tool afterbody 5 are still formed in one.
Embodiment three
As shown in Figure 2, described punched out teeth and repair hole tooth and include the first basal plane 211, second basal plane 212, the 3rd basal plane 213 and the 4th basal plane 214, angle wherein between the first basal plane 211 and horizontal plane is A, angle between second basal plane 212 and vertical plane is B, orthogonal between horizontal plane and vertical plane, be connected by curved surfaces is round and smooth between first basal plane 211 with the second basal plane 212, the curved surfaces place between the first basal plane 211 and the second basal plane 212 forms groove; Second basal plane 212 and the 3rd basal plane 213 form crown in intersection; The width of the 3rd basal plane 213 is L, the 4th basal plane 214 from the 3rd basal plane 213 to equal the position of the width of the 3rd basal plane 213 downward-sloping with crown distance.
Wherein included angle A, B and width L are all greater than zero.As preferred embodiment, the included angle A between the first basal plane 211 and horizontal plane 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, and described vertical plane and horizontal plane are mutually vertical.
Found by a large amount of engineering tests, included angle A, the concrete value of B and width L has specific impact to euphotic belt, A is 30 °, B is 12 °, L is that the technical scheme of 2mm coordinates two punched out teeth and two technical schemes of repairing hole tooth that euphotic belt and inner diameter cylindrical body vertical height can be enable to reach about 95% of thickness of link plates, other values all cannot realize this technique effect, applicant is by conversion included angle A, value and the change punched out teeth of B and width L have done a large amount of tests with the quantity of repairing hole tooth, find that the euphotic belt of the technical scheme under other values is all at less than 6/7 of thickness of link plates.Therefore applicant thinks, employing A is 30 °, B is 12 °, L is that the technical scheme of 2mm is compared with other technologies scheme, achieve unforeseeable 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 to do similar test, can not get this technical scheme by the test of routine yet.
Except above content, the structure of the combination broach described in embodiment three can be identical with the structure of the combination broach described in embodiment two with embodiment one, do not repeat them here.
Compared with prior art, the NEW TYPE OF COMPOSITE broaching tool described in the application can save more than 50% manual time, the electricity charge and frock in carrier bar production process, can bring very large economic benefit.Adopt NEW TYPE OF COMPOSITE broaching tool of the present invention, once die-filling, die trial, debugging, former need 2 workpiece that just can complete working day are now less than completing 1 working day, and the former frock that needs joins punch and broaching tool, now only need join a kind of novel broaching tool.Such as, if there are order 300 meters of nonstandard chains, pitch 100, outer plate 3000, inner plate 3000, by after technique blanking in the past, first fill the perforating die of outer plate, die trial, debugging, after various parameter puts in place, start punching, need 2 working days, change the pulling eye mould of outer plate, die trial, debugging again, then pulling eye.And apply NEW TYPE OF COMPOSITE broaching tool of the present invention, namely once die-filling, die trial, debugging, once complete.Former twice punching is drawn, and existing once completes, 2 working days of former need, now less than completing 1 working day.
Chain conveyer product has now listed country's " industrial strong basis project " in.Chain industry has in all automation process flow processs, comprise metallurgy industry, no matter be sheet material, bar, wire rod all be unable to do without the nonstandard chain of various difference, auto production line, washing machine, refrigerator, food, drinks, papermaking, every plant equipment and automation streamline equipment, long distance delivery, various heating, drying is produced, sheet alloy production line all needs various nonstandard chain.Hot environment, contaminated environment, low temperature environment, the application of various nonstandard chain is more and more wide.
At present by the assessment according to customs's outlet and domestic chain industry of our chain employer's organization, the chain whole nation of 2014 is sold at about 21,500,000,000 yuan, and wherein nonstandard chain and 40A, B standard roller chain and various heavy chain bar account for about 50%.By tonnage at 82.7 ten thousand tons, its intermediate plate is at 41.35 ten thousand tons, average carrier bar is pressed 350g and is calculated, 1200000000 carrier bars, the average every workday produces 1500, need 800,000 working days, as pressed traditional handicraft, second time is die-filling, the coefficient that hole tool is multiplied by 0.1 is repaiied in configuration, if first time punching is by the NEW TYPE OF COMPOSITE broaching tool explained hereafter as described in the application, can save 880,000 working days, the every workday calculates about 1.32 hundred million yuan by 150 yuan of labor costs, we press this new technology of 1/3 enterprise in chain industry, can cut down expenses 4,400 ten thousand yuan.
This NEW TYPE OF COMPOSITE broaching tool technique, to all sheet metal punchings, has technical requirement to punching, requires vertical all applicable in aperture.
More than show and describe general principle of the present invention and principal character and advantage of the present invention.The technical staff of the industry should understand; the present invention is not restricted to the described embodiments; what describe in above-described embodiment and description just illustrates principle of the present invention; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements all fall in the claimed scope of the invention.Application claims protection domain is defined by appending claims and equivalent thereof.
Claims (10)
1. a NEW TYPE OF COMPOSITE broaching tool, it is characterized in that, comprise: punch, tooth, pull bar, broaching tool location division and broaching tool afterbody, the first round platform connecting portion of the direction convergent of diameter from punch to tooth is provided with between described punch and tooth, the second round platform connecting portion is provided with 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 comprise diameter be greater than punching initial diameter and be less than that the punched out teeth of punching aimed dia and diameter equal punching aimed dia repair hole tooth, described punched out teeth repaiies hole dental transition near described punch than described, the diameter of described punch equals punching initial diameter.
2. NEW TYPE OF COMPOSITE broaching tool according to claim 1, is characterized in that, the structure that described punch, tooth, pull bar, broaching tool location division and broaching tool afterbody are formed in one.
3. NEW TYPE OF COMPOSITE broaching tool according to claim 2, it is characterized in that, described punching aimed dia 0.3mm-0.5mm larger than punching initial diameter, the diameter 0.1mm-0.15mm larger than punching initial diameter of described punched out teeth, and when punched out teeth is multiple, increase 0.1mm-0.15mm step by step along from punch to the diameter of the direction punched out teeth of broaching tool afterbody.
4. NEW TYPE OF COMPOSITE broaching tool according to claim 3, it is characterized in that, described tooth comprises 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 are for repairing hole tooth, the wherein diameter of the first tooth 0.1mm-0.15mm larger than the diameter of described punch, the diameter 0.1mm-0.15mm larger than the diameter of the first tooth of the second tooth.
5. NEW TYPE OF COMPOSITE broaching tool according to claim 4, it is characterized in that, the diameter of the second described round platform connecting portion is cumulative to the direction of broaching tool location division from pull bar, and the diameter of broaching tool location division is greater than the diameter of pull bar, and the diameter of broaching tool afterbody is greater than the diameter of broaching tool location division.
6. NEW TYPE OF COMPOSITE broaching tool according to claim 5, it is characterized in that, described punched out teeth and repair hole tooth and include the first basal plane, the second basal plane, the 3rd basal plane and the 4th basal plane, angle wherein between the first basal plane and horizontal plane is greater than zero, angle between second basal plane and vertical plane is greater than zero, orthogonal between horizontal plane and vertical plane, be connected by curved surfaces is round and smooth between the first basal plane with the second basal plane, the curved surfaces place between the first basal plane and the second basal plane forms groove; Second basal plane and the 3rd basal plane form crown in intersection; The width of the 3rd basal plane is greater than zero, the 4th basal plane from the 3rd basal plane to equal the position of the width of the 3rd basal plane downward-sloping with crown distance.
7. NEW TYPE OF COMPOSITE broaching tool according to claim 6, is characterized in that, the angle between the first described basal plane and horizontal plane is 30 °; Angle between second basal plane and vertical plane is 12 °, and the width of the 3rd basal plane is 2mm, and described vertical plane and horizontal plane are mutually vertical.
8. NEW TYPE OF COMPOSITE broaching tool according to claim 7, is characterized in that, combination broach successively through twice the pre-heat treatment, Quenching Treatment, 4 tempering process, ice-cold process and straightening technology.
9. NEW TYPE OF COMPOSITE broaching tool according to claim 8, is characterized in that, twice described the pre-heat treatment comprises first time preheating and second time preheating, and preheat temperature is 500-550 DEG C for the first time, and preheating time first time is 1 hour; Second time preheat temperature is 850 DEG C, and preheating time is 12 minutes for the second time; Described Quenching Treatment is that the heating-up temperature of employing 1170 DEG C-1190 DEG C is quenched, and the heat time is 10-15 second, and the cold oil having heated rear employing 80 DEG C-120 DEG C cools, and cool time is identical with the heat time.
10. NEW TYPE OF COMPOSITE broaching tool according to claim 9, is characterized in that, the described each tempering of 4 tempering process 2.5 hours, and temperature is 540 DEG C-580 DEG C, and the broaching tool after each tempering carries out tempering next time after being cooled to room temperature again; First described ice-cold process makes combination broach in cabinet-type electric furnace, be heated to 200 DEG C, and be incubated two hours, at-70 DEG C, carry out ice-cold process, the ice-cold processing time maintains 15 minutes; Broaching tool is placed on the V-arrangement back-up block at alignment workbench two ends by described straightening technology, two ends are made to keep highly consistent, the position natural gas spraying gun heated baking of bend relief is had at broaching tool, temperature is higher than 300 DEG C and lower than temperature, broaching tool surface presentation is lilac while, adopt press rods to the position pressurization of bend relief, make the quenched martensite at this position change tempered martensite into.
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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 true CN105171116A (en) | 2015-12-23 |
| CN105171116B CN105171116B (en) | 2017-08-25 |
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Cited By (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 |
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| 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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| 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 |
| JP2004322239A (en) * | 2003-04-23 | 2004-11-18 | Fuji Heavy Ind Ltd | Working tool |
| 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 |
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| CN105171116B (en) | 2017-08-25 |
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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 |
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