CN106623459A - Stretcher jaw and machining process thereof - Google Patents
Stretcher jaw and machining process thereof Download PDFInfo
- Publication number
- CN106623459A CN106623459A CN201611238483.4A CN201611238483A CN106623459A CN 106623459 A CN106623459 A CN 106623459A CN 201611238483 A CN201611238483 A CN 201611238483A CN 106623459 A CN106623459 A CN 106623459A
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- Prior art keywords
- flank
- tooth
- jaw
- mounting groove
- groove
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C1/00—Manufacture of metal sheets, metal wire, metal rods, metal tubes by drawing
- B21C1/16—Metal drawing by machines or apparatus in which the drawing action is effected by other means than drums, e.g. by a longitudinally-moved carriage pulling or pushing the work or stock for making metal sheets, bars, or tubes
- B21C1/27—Carriages; Drives
- B21C1/28—Carriages; Connections of grippers thereto; Grippers
-
- 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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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)
Abstract
The invention discloses a stretcher jaw and a machining process thereof. The stretcher jaw comprises an upper jaw base, a first tooth surface insert, a lower jaw base and a second tooth surface insert, wherein the upper jaw base is provided with a first mounting groove in the lower side; the first tooth surface insert is detachably mounted in the first mounting groove; the lower surface of the first tooth surface insert is a first tooth surface for clamping workpieces; the first tooth surface is projected out of the first mounting groove; a second mounting groove is formed in the upper side of the lower jaw base; the second tooth surface insert is detachably mounted in the second mounting groove; the upper surface and/or the lower surface of the second tooth surface insert are second tooth surfaces for clamping the workpieces; and the second tooth surfaces are projected out of the second mounting groove. The tooth surfaces of the jaw are separated out to combine with the jaw bases in an insert form, so that the purchase cost caused by damage of the tooth surfaces of the stretcher jaw is reduced, and the production cost is reduced.
Description
Technical field
The present invention relates to machining technology field, more particularly to a kind of stretcher jaw and a kind of stretcher jaw are processed
Technique.
Background technology
1500 tons of stretcher jaws are the most important instruments of stretching process, and it rationally, effectively uses the profile chi to product
Very little, residual stress is eliminated has decisive influence.
Stretching jaw of the prior art is overall structure, and thickness specification is from 380~500mm.Each new jaw valency
Ten thousand yuan or so of lattice 4.5-5.5.The problem that the stretcher jaw is present predominantly fails soon, so as to using short life, production cost
It is high.The year of jaw is consumed typically more than 20, and one of main performance of its failure is tooth surface abrasion.
Therefore, how to solve the problems, such as or improve the production cost that the tooth surface abrasion phenomenon of stretcher jaw brings high, be
Current those skilled in the art technical problem urgently to be resolved hurrily.
The content of the invention
In view of this, it is an object of the invention to provide a kind of stretcher jaw and its processing technique, are conducive to compression to draw
Machine jaw is stretched because the flank of tooth damages the purchase cost brought, reduce production cost.
For achieving the above object, the present invention provides following technical scheme:
A kind of stretcher jaw, including:
Upper jaw pedestal, downside is provided with the first mounting groove;
First flank of tooth insert, is removably mounted in first mounting groove, the lower surface of first flank of tooth insert
It is first flank of tooth for clamping workpiece, first flank of tooth is protruded outside first mounting groove;
Lower jaw pedestal, upside is provided with the second mounting groove;
Second flank of tooth insert, is removably mounted in second mounting groove, the upper surface of second flank of tooth insert
And/or lower surface is second flank of tooth for clamping workpiece, second flank of tooth is protruded outside second mounting groove.
Preferably, in above-mentioned stretcher jaw, in the flute profile seamed edge and second flank of tooth in first flank of tooth
Angle between flute profile seamed edge is more than zero and less than 180 °.
Preferably, in above-mentioned stretcher jaw, the stretcher jaw includes second tooth that multiple thickness are not waited
Face insert.
Preferably, in above-mentioned stretcher jaw, the two ends of second flank of tooth insert have been provided with repeated hole;
Position corresponding with described repeated hole is provided with the resigning groove stepped down for lifting, institute on the lower jaw pedestal
Resigning groove is stated positioned at the both sides of second mounting groove and is connected with second mounting groove.
Preferably, in above-mentioned stretcher jaw, first side adjacent with the resigning groove in second mounting groove
While being the first inclined-plane to groove outer incline, the angle of inclination on first inclined-plane is 13 ° to 17 °;
In second mounting groove, in the second side vertical with the first side, at least partially to groove outer incline
The second inclined-plane, the angle of inclination on second inclined-plane is 25 ° to 35 °.
Preferably, in above-mentioned stretcher jaw, the both sides of first flank of tooth insert are respectively arranged with right angle groove,
The bottom land of the right angle groove is provided with installing hole, and bolt removably pacifies first flank of tooth insert through the installing hole
It is mounted in first mounting groove, the depth of the right angle groove is not less than the nut thickness of the bolt.
Preferably, in above-mentioned stretcher jaw, first mounting groove is the width along the upper jaw pedestal
Through the installation groove of the lower surface of the upper jaw pedestal, the broadside of the side of the installation groove and the upper jaw pedestal
Parallel and equal, the thickness of first flank of tooth insert is more than the depth 5mm to 15mm of first mounting groove.
Preferably, in above-mentioned stretcher jaw, at least one of described first mounting groove side is to groove outer incline
The 3rd hypotenuse, the angle of inclination of the 3rd hypotenuse is 25 ° to 35 °.
Preferably, in above-mentioned stretcher jaw, first flank of tooth insert and/or second flank of tooth insert are adopted
45# steel, integral quenching, modifier treatment, intensity is RC36-40.
A kind of stretcher jaw processing technique, for giving birth to the above stretcher jaw, the stretcher jaw system
Include as technique:
The first mounting groove is processed on the failure flank of tooth of failure upper jaw, or is being used to make the steel ingot of upper jaw
First mounting groove is processed, the second mounting groove is processed on the failure flank of tooth of failure lower jaw, or be used to make
Second mounting groove is processed on the steel ingot of lower jaw;
First flank of tooth insert and the second flank of tooth insert is removable with first mounting groove and second mounting groove respectively
Unload connection;
Wherein, a side of first flank of tooth insert is provided with first flank of tooth for extruding workpiece, and described first
The flank of tooth is protruded outside first mounting groove, and a side of second flank of tooth insert is provided with the second tooth for extruding workpiece
Face, second flank of tooth is protruded outside second mounting groove.
From above-mentioned technical proposal as can be seen that the stretcher jaw of present invention offer, the flank of tooth of jaw is separated, with
Insert form is combined with jaw pedestal.After flank of tooth insert fails because of tooth surface abrasion, deformation etc., the flank of tooth insert for changing the outfit new
Jaw function can immediately be recovered, it is not necessary to which upper jaw or lower jaw are carried out into integral replacing.Have an advantage in that a flank of tooth insert
Price deficiency prior art in upper jaw or lower jaw overall price 20%, and because flank of tooth insert specification is little, therefore be easy to
Processing, intensity are more easy to control, and its flank of tooth life-span is also long than the flank of tooth of overall jaw structure in prior art.So as to visible, this
The stretcher jaw of bright offer, is conducive to compression stretching machine jaw to damage the purchase cost brought due to the flank of tooth, so as to reduce
Production cost.
Additionally, the stretcher jaw processing technique that the present invention is provided, not only contributes to extend jaw service life, life is reduced
Cost is produced, but also failure jaw can be re-used, i.e., by the way that the failure flank of tooth of failure jaw is obtained through simple processing
Jaw pedestal newly is obtained, by coordinating the flank of tooth insert made production is continuously added, without the need for enough buying whole upper jaw again, from
And further save production cost.
Description of the drawings
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
The accompanying drawing to be used needed for having technology description is briefly described, it should be apparent that, drawings in the following description are only this
Some embodiments of invention, for those of ordinary skill in the art, on the premise of not paying creative work, can be with
Other accompanying drawings are obtained according to these accompanying drawings.
Fig. 1 is the structural representation of upper jaw pedestal provided in an embodiment of the present invention;
Fig. 2 is the mounting structure schematic diagram of upper jaw pedestal provided in an embodiment of the present invention and the first flank of tooth insert;
Fig. 3 is the structural representation of stretcher jaw provided in an embodiment of the present invention;
Fig. 4 is the main view manuscript of upper jaw pedestal provided in an embodiment of the present invention;
Fig. 5 is the left view manuscript of upper jaw pedestal provided in an embodiment of the present invention;
Fig. 6 is the vertical view manuscript of upper jaw pedestal provided in an embodiment of the present invention;
Fig. 7 is the main view manuscript of first flank of tooth insert provided in an embodiment of the present invention;
Fig. 8 is the left view manuscript of first flank of tooth insert provided in an embodiment of the present invention;
Fig. 9 is the main view manuscript of lower jaw pedestal provided in an embodiment of the present invention;
Figure 10 is the vertical view manuscript of lower jaw pedestal provided in an embodiment of the present invention;
Figure 11 is the main view manuscript of second flank of tooth insert provided in an embodiment of the present invention;
Figure 12 is the left view manuscript of second flank of tooth insert provided in an embodiment of the present invention.
Wherein:
1- upper jaw pedestals, 10- dovetail inserts, the mounting grooves of 11- first,
2- addendum flank inserts, 21- bolts, 22- right angle grooves, the flank of tooth of 23- first,
3- lower jaw pedestals, the 30- original flank of tooth, the mounting grooves of 31- second, 32- resigning grooves, 33- connection bumps,
4- dedendum flank inserts, 41- repeated hole, the flank of tooth of 42- second,
A1-A1、B1-B1:The first flute profile direction in first flank of tooth,
A2-A2、B2-B2:The second flute profile direction in second flank of tooth.
Specific embodiment
The invention discloses a kind of stretcher jaw and its processing technique, are conducive to compression stretching machine jaw to damage due to the flank of tooth
The bad purchase cost brought, reduces production cost.
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation is described, it is clear that described embodiment is only a part of embodiment of the invention, rather than the embodiment of whole.It is based on
Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under the premise of creative work is not made
Embodiment, belongs to the scope of protection of the invention.
Fig. 1 to Figure 12 is referred to, Fig. 1 is the structural representation of upper jaw pedestal provided in an embodiment of the present invention, and Fig. 2 is this
Upper jaw pedestal and the mounting structure schematic diagram of the first flank of tooth insert that inventive embodiments are provided, Fig. 3 is carried for the embodiment of the present invention
For stretcher jaw structural representation, Fig. 4 is the main view manuscript of upper jaw pedestal provided in an embodiment of the present invention, Fig. 5
For the left view manuscript of upper jaw pedestal provided in an embodiment of the present invention, Fig. 6 is upper jaw pedestal provided in an embodiment of the present invention
Vertical view manuscript, Fig. 7 is the main view manuscript of first flank of tooth insert provided in an embodiment of the present invention, and Fig. 8 is present invention enforcement
The left view manuscript of the first flank of tooth insert that example is provided, Fig. 9 is the main view processing of lower jaw pedestal provided in an embodiment of the present invention
Figure, Figure 10 is the vertical view manuscript of lower jaw pedestal provided in an embodiment of the present invention, and Figure 11 is provided in an embodiment of the present invention the
The main view manuscript of two flank of tooth inserts, Figure 12 is the left view manuscript of second flank of tooth insert provided in an embodiment of the present invention.
Stretcher jaw provided in an embodiment of the present invention, including upper jaw pedestal 1, lower jaw pedestal 3, the first flank of tooth insert
2nd, the second flank of tooth insert 4.Wherein, the downside of upper jaw pedestal 1 is provided with the first mounting groove 11, and the first flank of tooth insert 2 is detachable
Ground is arranged in the first mounting groove 11, and the lower surface of the first flank of tooth insert 2 is first flank of tooth 23 for clamping workpiece, the first tooth
Protrude outside the first mounting groove 11 in face 23;The upside of lower jaw pedestal 3 is provided with the second mounting groove 31, and the second flank of tooth insert 4 is removable
It is arranged in the second mounting groove 31 with unloading, the upper surface (or upper and lower surface is equal) of the second flank of tooth insert 4 is for pressing from both sides
Second flank of tooth 42 of clamping of workpieces, second flank of tooth 42 is protruded outside the second mounting groove 31.
From above-mentioned technical proposal as can be seen that stretcher jaw provided in an embodiment of the present invention, the flank of tooth of jaw is separated
Out, it is combined with jaw pedestal in insert form.After flank of tooth insert fails because of tooth surface abrasion, deformation etc., change the outfit new
Flank of tooth insert can immediately recover jaw function, it is not necessary to which upper jaw or lower jaw are carried out into integral replacing.Have an advantage in that one
The 20% of upper jaw or lower jaw overall price in the price deficiency prior art of flank of tooth insert, and due to flank of tooth insert specification
It is little, therefore easy to process, intensity is more easy to control, its flank of tooth life-span is also long than the flank of tooth of overall jaw structure in prior art.So as to
It can be seen that, stretcher jaw provided in an embodiment of the present invention is conducive to compression stretching machine jaw to damage the purchase for bringing due to the flank of tooth
Cost, so as to reduce production cost.
Additionally, being directed to above-mentioned stretcher jaw, the embodiment of the present invention additionally provides a kind of stretcher jaw processing technique.Should
Stretcher jaw processing technique includes:The first mounting groove 11 is processed on the failure flank of tooth of failure upper jaw, or is being used for
The first mounting groove 11 is processed on the steel ingot for making upper jaw, on the failure flank of tooth of failure lower jaw the second mounting groove is processed
31, or process on the steel ingot of lower jaw the second mounting groove 31 for making;First flank of tooth insert 2 and second flank of tooth are inlayed
Block 4 is detachably connected respectively with the first mounting groove 11 and the second mounting groove 31.Wherein, a side of the first flank of tooth insert 2 sets
First flank of tooth 23 for extruding workpiece is equipped with, first flank of tooth 23 is protruded outside the first mounting groove 11, one of the second flank of tooth insert 4
Side is provided with second flank of tooth 42 for extruding workpiece, and second flank of tooth 42 is protruded outside the second mounting groove 31.
It can be seen that, stretcher jaw processing technique provided in an embodiment of the present invention not only contributes to extend jaw service life,
Production cost is reduced, but also failure jaw can be re-used, i.e., by the way that the failure flank of tooth of failure jaw is passed through into simple
Processing obtains new jaw pedestal, and by coordinating the flank of tooth insert made production is continuously added, without the need for enough buying again on whole
Jaw, so as to further save production cost.But, it is not limited to this, those skilled in the art manufacture in actual production
During, it is also possible to according to actual needs, the upper jaw or lower jaw of combinations thereof structure is manufactured from new steel ingot, the present invention
This is not especially limited.
Stretcher jaw of the prior art is difficult to meet use requirement, and Jing skidding often occurs, causes device damage
Requirement can not be reached with extensibility.Further, since extruded product complex structure, same group of jaw will simultaneously meet different size
The tension straingtening of tube, rod section, row's material, in the less product of stretching specification, generally requires plus aluminium alloy cushion block could meet out
Skidding, easily occurs when this is just easily caused stretching in the requirement of mouth degree (gap of two rollers), and causes hidden danger of quality, damage to set
It is standby, and keep in repair or enough buy equipment again and undoubtedly increased production cost.Skidding can also cause the flank of tooth to glue metal, cause continuous skidding
Vicious cycle.
Therefore, in stretcher jaw provided in an embodiment of the present invention, the not only flute profile seamed edge and second in first flank of tooth 23
The angle between flute profile seamed edge in the flank of tooth 42 is more than zero and less than 180 °, and, stretcher jaw includes multiple thickness
The second flank of tooth insert 4.
Specifically, Fig. 7 and Figure 11, the flute profile seamed edge in first flank of tooth 23 are referred to, its flute profile direction is the first flute profile side
To including A1-A1 staggeredly and B1-B1;Flute profile seamed edge in second flank of tooth 42, its flute profile direction is the second flute profile direction, is wrapped
Include A2-A2, B2-B2 staggeredly.Wherein, A1-A1 and B1-B1 intersect respectively that (i.e. not parallel, angle is less than more than zero with A2-A2
180 °), A1-A1 and B1-B1 intersects respectively (i.e. not parallel, angle is more than zero less than 180 °) with B2-B2.Above-mentioned flute profile is provided with
Beneficial to increase friction, strengthen skidproof effect.
Specifically, Fig. 9 and Figure 10 is referred to, the size of the second mounting groove 31 is 660mm × 502mm × 40mm, with fixation
Second flank of tooth insert 4 simultaneously prevents the second flank of tooth insert 4 from sliding.Also, Figure 12 is referred to, the length of the second flank of tooth insert 4 is
660mm, width is 500mm, and thickness is provided with various, such as thickness H=50mm/100mm/160mm/220mm.Correspondingly,
Diameter=the 25mm/40mm/40mm/40mm for playing repeated hole 41 (being easy to handling) at the two ends of two flank of tooth insert 4, plays the depth of repeated hole 41
For 50mm.The thickness of multiple second flank of tooth inserts 4, so as to can according to needed for workpiece product opening degree, easily change not
Second flank of tooth insert 4 of stack pile, reduces the use of aluminium alloy cushion block, it is to avoid skidding occur.
Further, in a particular embodiment, as shown in Fig. 3, Fig. 9 and Figure 10, with a repeated hole 41 on lower jaw pedestal 3
Corresponding position is provided with the resigning groove 32 stepped down for lifting, resigning groove 32 be located at the both sides of the second mounting groove 31 and with
Second mounting groove 31 is connected.
Install for convenience, as shown in Figure 10, in the second mounting groove 31 on lower jaw pedestal 3, with the phase of resigning groove 32
Adjacent first side is the first inclined-plane 311 to groove outer incline, the angle of inclination on the first inclined-plane 311 be 13 ° to 17 ° (preferably
15°);Also, in the second mounting groove 31, in the second side vertical with first side, at least partially to the of groove outer incline
Two inclined-planes 312, the angle of inclination on the second inclined-plane 142 is 25 ° to 35 ° (preferably 30 °).Wherein it is possible to by the second mounting groove 31
In whole piece second side be all provided with being set to inclined-plane and obtain the second inclined-plane 312, it is also possible to as shown in Figure 10 to Figure 11, only by the second peace
The top of the second side of tankage 31 is set up separately and is set to inclined-plane and obtains the second inclined-plane 142, and the bottom of second side point remain it is perpendicular
Face directly.Additionally, in the second mounting groove 31, there is respectively escape 310 corner.The inclined-plane 312 of above-mentioned first inclined-plane 311 and second
Setting is easy to that the second flank of tooth insert 4 is positioned in the second mounting groove 31.
It can be seen that, in a particular embodiment, the length and width of the length and width of the second flank of tooth insert 4 and the second mounting groove 31
Degree size adaptation, the thickness of the second flank of tooth insert 4 is more than the depth of the second mounting groove 31.
Additionally, in a particular embodiment, the both sides of the first flank of tooth insert 2 are respectively arranged with right angle groove 22, recessed at right angle
The bottom land of groove 22 is provided with installing hole, and the first flank of tooth insert 2 is removably mounted on the first installation by bolt 21 through installing hole
In groove 11, the depth of right angle groove 22 is not less than the nut thickness of bolt 21.So that bolt is integrally ensconced in right angle groove, no
Hinder processing.Preferably, the installing hole of the both sides of the first flank of tooth insert 2 is bar hole, in order to install.
Specifically, to install groove, the installation groove runs through upper to the first mounting groove 11 along the width of upper jaw pedestal 1
The lower surface of jaw pedestal 1, the side of the installation groove is parallel with the broadside of upper jaw pedestal 1 and equal.First flank of tooth insert 2
Thickness more than the first mounting groove 11 depth 5mm to 15mm.Here is it should be noted that " long side " is that length is relatively long
Side, " broadside " is the relatively short side of length.
Further, at least one of first mounting groove 11 side is the 3rd hypotenuse to groove outer incline, the 3rd hypotenuse
Angle of inclination be 25 ° to 35 ° (preferably 30 °).
Preferably, the width of the first mounting groove 11 is 505mm, and depth is 40mm, and bottom land both sides are machined with respectively 5 M30
Screw, for fixing the first flank of tooth insert 2 by bolt 21;The thickness of the first flank of tooth insert 2 is 50mm, for the ease of installing,
The width of the first flank of tooth insert 2 is 500mm, and length is equal with the first mounting groove 11.Preferably, screw is located at the first flank of tooth insert
On 2 two broadsides.
In a particular embodiment, the first flank of tooth insert 2 and the second flank of tooth insert 4 are respectively adopted 45# steel, integral quenching, tune
Matter process, intensity is RC36-40, to guarantee flank of tooth sufficient intensity.After the first flank of tooth insert 2 or the second flank of tooth insert 4 fail,
Then change the outfit new the first flank of tooth insert 2 or the second flank of tooth insert 4, you can recovers jaw function.
To sum up, by stretcher jaw provided in an embodiment of the present invention, recent decades puzzlement 1500 is fundamentally solved
The difficult problem that jaw service life is short, instrument use cost is high of ton stretching-machine.Practice operation shows, provided in an embodiment of the present invention
Stretcher jaw is functionally completely the same with integrally-built jaw in prior art, it is not necessary to other components or set
Standby body enters transformation.Flank of tooth insert is simple with the cooperation of jaw pedestal, therefore its dismounting is quick, convenient.
Also, the present invention can be greatly reduced jaw cost of use.Integrally-built stretcher jaw can be because in prior art
The failure of local causes the failure of whole jaw, and its loss is big.The stretcher jaw of the combinative structure that the present invention is provided is by jaw
Base-separation is out so as to becomes durable components, and reaches recovery jaw by more bringing for the flank of tooth insert to partial failure
The purpose of function, loses relatively much lower.Following table is the typical price of main insert, it can be seen that relatively integrally-built drawing
Machine jaw is stretched, its value is very significant.When in view of flank of tooth insert because material, strength reasons are up to integrally-built jaw
2-4 times of the flank of tooth, its economic worth is even more amplified at double, and annual direct economic benefit is not less than 1,000,000 yuan.
Finally, in addition it is also necessary to explanation, herein, such as first and second or the like relational terms be used merely to by
One entity or operation make a distinction with another entity or operation, and not necessarily require or imply these entities or operation
Between there is any this actual relation or order.And, term " including ", "comprising" or its any other variant meaning
Covering including for nonexcludability, so that a series of process, method, article or equipment including key elements not only includes that
A little key elements, but also including other key elements being not expressly set out, or also include for this process, method, article or
The intrinsic key element of equipment.In the absence of more restrictions, the key element for being limited by sentence "including a ...", does not arrange
Except also there is other identical element in including the process of the key element, method, article or equipment.
Each embodiment is described by the way of progressive in this specification, and what each embodiment was stressed is and other
The difference of embodiment, between each embodiment identical similar portion mutually referring to.
The foregoing description of the disclosed embodiments, enables professional and technical personnel in the field to realize or using the present invention.
Various modifications to these embodiments will be apparent for those skilled in the art, as defined herein
General Principle can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, the present invention
The embodiments shown herein is not intended to be limited to, and is to fit to and principles disclosed herein and features of novelty phase one
The most wide scope for causing.
Claims (10)
1. a kind of stretcher jaw, it is characterised in that include:
Upper jaw pedestal (1), downside is provided with the first mounting groove (11);
First flank of tooth insert (2), is removably mounted in first mounting groove (11), first flank of tooth insert (2)
Lower surface is first flank of tooth (23) for clamping workpiece, and first flank of tooth (23) protrudes first mounting groove (11) outward;
Lower jaw pedestal (3), upside is provided with the second mounting groove (31);
Second flank of tooth insert (4), is removably mounted in second mounting groove (31), second flank of tooth insert (4)
Upper surface and/or lower surface are second flank of tooth (42) for clamping workpiece, and second flank of tooth (42) protrusion described second is pacified
Tankage (31) is outward.
2. stretcher jaw according to claim 1, it is characterised in that flute profile seamed edge in first flank of tooth (23) and
The angle between flute profile seamed edge in second flank of tooth (42) is more than zero and less than 180 °.
3. stretcher jaw according to claim 1, it is characterised in that the stretcher jaw includes multiple thickness
Second flank of tooth insert (4).
4. stretcher jaw according to claim 1, it is characterised in that the two ends of second flank of tooth insert (4) are arranged
There is repeated hole (41);
Position corresponding with described repeated hole (41) is provided with the resigning groove stepped down for lifting on the lower jaw pedestal (3)
(32), the resigning groove (32) connects positioned at the both sides of second mounting groove (31) and with second mounting groove (31).
5. stretcher jaw according to claim 4, it is characterised in that with the resigning in second mounting groove (31)
The adjacent first side of groove (32) is the first inclined-plane (311) to groove outer incline, the angle of inclination of first inclined-plane (311)
For 13 ° to 17 °;
In second mounting groove (31), in the second side vertical with the first side, at least partially to groove outer incline
The second inclined-plane (312), the angle of inclination of second inclined-plane (142) is 25 ° to 35 °.
6. stretcher jaw according to claim 1, it is characterised in that the both sides difference of first flank of tooth insert (2)
Right angle groove (22) is provided with, the bottom land of the right angle groove (22) is provided with installing hole, bolt (21) is through the installation
Hole is removably mounted on first flank of tooth insert (2) in first mounting groove (11), the right angle groove (22)
Nut thickness of the depth not less than the bolt (21).
7. stretcher jaw according to claim 6, it is characterised in that first mounting groove (11) is along the upper pincers
The width of mouth pedestal (1) runs through the installation groove of the lower surface of the upper jaw pedestal (1), the side of the installation groove
Parallel and equal with the broadside of the upper jaw pedestal (1), the thickness of first flank of tooth insert (2) is installed more than described first
The depth 5mm to 15mm of groove (11).
8. stretcher jaw according to claim 7, it is characterised in that at least one of described first mounting groove (11)
Side is the 3rd hypotenuse to groove outer incline, and the angle of inclination of the 3rd hypotenuse is 25 ° to 35 °.
9. the stretcher jaw according to any one of claim 1-8, it is characterised in that first flank of tooth insert (2) and/
Or second flank of tooth insert (4), using 45# steel, integral quenching, modifier treatment, intensity is RC36-40.
10. a kind of stretcher jaw processing technique, it is characterised in that for drawing of the production as described in any one of claim 1-9
Machine jaw is stretched, the stretcher jaw processing technology includes:
The first mounting groove (11) is processed on the failure flank of tooth of failure upper jaw, or is being used to make the steel ingot of upper jaw
First mounting groove (11) is processed, on the failure flank of tooth of failure lower jaw the second mounting groove (31), Huo Zhe are processed
For processing second mounting groove (31) on the steel ingot for making lower jaw;
First flank of tooth insert (2) and the second flank of tooth insert (4) are installed respectively with first mounting groove (11) and described second
Groove (31) is detachably connected;
Wherein, a side of first flank of tooth insert (2) is provided with first flank of tooth (23) for extruding workpiece, and described
One flank of tooth (23) protrudes first mounting groove (11) outward, and a side of second flank of tooth insert (4) is provided with for squeezing
Second flank of tooth (42) of pressure workpiece, second flank of tooth (42) protrudes second mounting groove (31) outward.
Priority Applications (1)
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CN201611238483.4A CN106623459A (en) | 2016-12-28 | 2016-12-28 | Stretcher jaw and machining process thereof |
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CN201611238483.4A CN106623459A (en) | 2016-12-28 | 2016-12-28 | Stretcher jaw and machining process thereof |
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Citations (9)
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Application publication date: 20170510 |