CN106391970A - Convex-concave assembling structure of jaw body and jaw insert - Google Patents

Convex-concave assembling structure of jaw body and jaw insert Download PDF

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Publication number
CN106391970A
CN106391970A CN201610158670.5A CN201610158670A CN106391970A CN 106391970 A CN106391970 A CN 106391970A CN 201610158670 A CN201610158670 A CN 201610158670A CN 106391970 A CN106391970 A CN 106391970A
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China
Prior art keywords
jaw
insert
jaw insert
convex
fixing
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Granted
Application number
CN201610158670.5A
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Chinese (zh)
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CN106391970B (en
Inventor
李志广
李全平
张健
高山
尹国华
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National No616 Plant
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National No616 Plant
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Priority to CN201610158670.5A priority Critical patent/CN106391970B/en
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21JFORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
    • B21J13/00Details of machines for forging, pressing, or hammering
    • B21J13/08Accessories for handling work or tools

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Connection Of Plates (AREA)
  • Forging (AREA)

Abstract

The invention discloses a convex-concave assembling structure of a jaw body and a jaw insert. The structure comprises the jaw body, the jaw insert and a micro-adjustment bolt; the convex portion and the concave portion of the jaw body correspond to the concave portion and the convex portion of the jaw insert correspondingly, and the micro-adjustment bolt is rotated in a micro-adjustment threaded hole in the jaw body to fasten the jaw insert with micro force. The convex-concave assembling structure is simple in structure, the round bar is simple in clamping process, the jaw insert fixed mounting process is simple, the efficiency is high, reliability is high, the service life of the jaw body and the jaw insert is long, the cost is low, and the problem that a jaw body and a jaw insert of an existing horizontal electric heating upsetting machine are not likely to be fixedly assembled, and the service life of the jaw body and the jaw insert is low is effectively solved.

Description

The convex-concave assembling structure of jaw body and jaw insert
Technical field
The invention belongs to technical field of forging, it is related to the convex-concave assembling structure of a kind of jaw body and jaw insert.
Background technology
The series horizontal electric upset forging machine such as existing D91, D92, D93 (hereinafter referred to as electric upset forging machine) is to complete 1 round steel simultaneously Bar one end local heating and the forging equipment assembling 2 work steps of jumping-up, electric upset forging round bar diameter specifications are φ 5.0mm~φ 35.0mm, electric upset forging round bar minimum length should be greater than jaw insert width or jaw body length size (jaw insert width or Jaw body length is essentially identical, generally 70mm~92mm).
Before electric upset forging machine work, jaw insert is securely fitted on jaw body, and round bar is inlayed in jaw by clamping On block.Jaw body is made up of matrix cavity and fastening bolt two parts, jaw insert only by one ingredient of fixing lug boss, In jaw body fixing assembling jaw insert, rely primarily on and increase the vertical fastening force fixing assembling pincers that 2 fastening bolts produce Mouth insert.
Shown in reference picture 1a to Fig. 3 b, the assembling structure of existing jaw body and jaw insert is clearly present following shortcoming:① Jaw body is difficult fixing assembling jaw insert, or serviceability extremely unstable:Because of existing jaw body unreasonable structure, in fixing dress Join and inside the cavity floor of jaw body of jaw insert part, also there are longitudinal left and right 2 φ 10mm, horizontal 1 φ 10mm Turnover cooling water pipeline, just also has above the Blind locating holes of 1 φ 50mm × 17mm and jaw body cavity on rear side of cavity floor Projection also has 1 or 2 M12mm fastening thread holes, and jaw body and jaw insert material are that hardness is relatively low, using strong Spend the combined influence of many unfavorable factors such as relatively low T1 or T2 red copper, then easily lead to existing fastening bolt fastening to loosen, clamp Mouth insert opposed jaws body moves left and right or shifts and cisco unity malfunction, and fixed installation is extremely inefficient, and (every clamping heats φ The cold drawn steel of 16mm~φ 27mm and hot-rolled steel round bar respectively about 200~250 and 40~60 when then must be by strength Screw fastening bolt and retighten jaw insert);2. existing jaw body service life is low:Every clamping heating φ 16mm~φ The cold drawn steel of 27mm and hot-rolled steel round bar respectively about 15~160,000 and 3~40,000 when, because easily produce abrasion, bending with Deformation failure and scrap;3. the fastening bolt holes service life on existing jaw body is low:Every clamping heating φ 16mm~φ 27mm Cold drawn steel and hot-rolled steel round bar respectively about 2500~4000 and 500~800 when produce deformed threads, abrasion and tired The phenomenon of labor cracking failure, the service life for improving 2 M12mm screwed holes has to increase screwed hole size, constantly will Screwed hole more reduces the use intensity of jaw body again after increasing to M22mm;4. existing jaw insert service life is low:Often Clamping heat the cold drawn steel of φ 16mm~φ 27mm and hot-rolled steel round bar respectively about 1200~1500 and 300~350 when Because easily produce abrasion, bending with deformation failure and scrap.
Content of the invention
(1) goal of the invention
The purpose of the present invention is:Overcome defect of the prior art, the convex-concave dress of a kind of jaw body and jaw insert is provided Distribution structure, effectively solving jaw body is difficult the difficult problem of fixing assembling jaw insert and effectively solving jaw body and jaw insert makes A difficult problem with short life.
(2) technical scheme
In order to solve above-mentioned technical problem, the present invention provides the convex-concave assembling structure of a kind of jaw body and jaw insert, its Including:Jaw body, jaw insert and trimming bolt, wherein jaw body are convex, recess corresponds to jaw insert concave, convex part respectively, Trimming bolt screws in the fine setting screwed hole 3 micro- power fastening jaw insert opening up on jaw body.
Wherein, described jaw body includes fixing lug boss 1, fixing cavity 2 and fine setting screwed hole 3, and fixing lug boss 1 is located at fixes The upper and lower of the intermediate symmetry of cavity 2, is laterally zygomorphic rectangular structure, with jaw insert length × depth × thickness cavity knot Structure matches;Fixing cavity 2 is located at the part beyond the fixing lug boss 1 in the middle of jaw body, is laterally zygomorphic left and right two parts Curved cavity, the convex-concave structure of fixing cavity is matched with the concaveconvex structure of jaw insert respectively, for fixing assembling jaw edge Block with prevent jaw insert before and after with move left and right or shift;Fine setting screwed hole 3 is located in fixing lug boss 1 and fixing cavity 2 Trimming bolt can be screwed in and realize micro- power fastening in screwed hole by the middle in portion.
Wherein, the combinative structure that described fine setting screwed hole 3 is made up of the entrance hole on top and the screwed hole of bottom, imports Hole is used for importing trimming bolt, and screwed hole is used for screwing in trimming bolt and micro- power fastening jaw insert.
Wherein, described jaw insert includes being fixed cavity 4 and by fixing lug boss 5, by fixing cavity 4 and fixing lug boss 1 Match, matched with fixing cavity 2 by fixing lug boss 5.
(3) beneficial effect
Jaw body and the convex-concave assembling structure of jaw insert that technique scheme is provided, structure is simple, and round bar fills Clip process is simple, and jaw insert fixed installation process is simple, efficiency high, reliability height, jaw body and jaw insert service life Height, low cost, efficiently solve existing horizontal electric upset forging machine jaw body and be difficult fixing assembling jaw insert and jaw body and pincers The low difficult problem of mouth insert service life.
Brief description
Fig. 1 a is the front view of existing jaw body;
Fig. 1 b is the left view of Fig. 1 a;
Fig. 2 a is the front view of existing jaw insert;
Fig. 2 b is the left view of Fig. 1 a;
Fig. 3 a is that the assembling front view of existing jaw body and jaw insert (will heat after representing clamping at double dot dash line Round bar, the P with arrow represents the direction of round bar upsetting jacking force);
Fig. 3 b is the left view of Fig. 3 a;
Fig. 4 a is the front view (containing fixing lug boss 1, fixing cavity 2 and fine setting screwed hole 3) of the jaw body of the present invention;
Fig. 4 b is the left view of Fig. 4 a;
Fig. 5 a is the front view (containing by fixing lug boss 5 with by fixing cavity 4) of the jaw insert of the present invention;
Fig. 5 b is the left view of Fig. 5 a;
Fig. 6 a is the jaw body of the present invention and the assembling front view of jaw insert (containing fixing lug boss 1, fixes cavity 2 and After fine setting screwed hole 3, trimming bolt and clamping will electric upset forging the round bar being represented with double dot dash line, with the P table of arrow Show the direction of round bar upsetting jacking force);
Fig. 6 b is the left view of Fig. 6 a.
Specific embodiment
For making the purpose of the present invention, content and advantage clearer, with reference to the accompanying drawings and examples, the tool to the present invention Body embodiment is described in further detail.
Shown in reference picture 6a and Fig. 6 b, the convex-concave assembling structure of the present embodiment jaw body and jaw insert include jaw body, Jaw insert and three ingredients of trimming bolt, wherein jaw body are convex, recess corresponds to jaw insert concave, convex part respectively, micro- Bolt is adjusted to screw in fine setting screwed hole 3 micro- power fastening jaw insert.
Described jaw body includes fixing lug boss 1, fixing cavity 2 and fine setting 3 three key components of screwed hole, structure letter List is compact and use intensity is enough, and wherein fixing lug boss 1 is located at the upper and lower of the intermediate symmetry of the fixing cavity 2 of jaw body, For laterally zygomorphic rectangular structure, match with jaw insert length × depth × thickness cavity, can effective fixing assembling jaw insert With prevent jaw insert before and after with move left and right or shift;Fixing cavity 2 is located at beyond the fixing lug boss 1 in the middle of jaw body Part, is laterally zygomorphic left and right two parts curved cavity, the convex-concave structure concavo-convex knot with jaw insert respectively of fixing cavity Structure matches, for fixing assembling jaw insert with prevent jaw insert before and after with move left and right or shift;Fine setting screwed hole 3 Positioned at the middle of fixing lug boss 1 and fixing cavity 2 top, trimming bolt can be screwed in and in screwed hole, realize micro- power fastening.
In the present embodiment, jaw body fixing lug boss 1 be laterally zygomorphic length × height × depth a size of 58mm × (52-35)/ The rectangular structure (see Fig. 4 a) of 2mm × 20mm, with jaw insert length × depth × thickness cavity size 59mm × (50-34)/2mm × 25mm matches (see Fig. 5 a);Fixing lug boss 1 size is less but use intensity is enough, has fixing dress with left and right directions in front and back Join the effect of jaw insert;When being operated after fixing assembling jaw insert, can not be inlayed in jaw by electric upset forging machine jacking cylinder In block groove, the impact of upsetting tip circle bar thrust is it is not required that lean on trimming bolt regular jaw insert, you can effectively prevent jaw Insert before and after and move left and right or shift, meanwhile, jaw body does not bend and deforms, jaw insert bend small with deflection.
The fixing cavity 2 of jaw body is laterally zygomorphic length × height × depth a size of (92-58)/2mm × 52mm × 20mm's Left and right two parts curved cavity (see Fig. 4 a and Fig. 4 b), the convex-concave structure concaveconvex structure with jaw insert respectively of fixing cavity 2 Match (see Fig. 5 a), has the effect accommodating with fixing assembling jaw insert;After jaw insert is by fixing assembling, neither it is subject to In jaw insert groove, the impact of upsetting tip circle bar thrust, also fixes not against trimming bolt, you can effectively prevent jaw from inlaying Block before and after and move left and right or shift, meanwhile, jaw body and jaw insert bending minimum with deflection.
Jaw body fine setting screwed hole 3 is to be by 1 topEntrance hole and bottom be M12mm × The combinative structure (see Fig. 4 a) of 25mm screwed hole composition, whereinEntrance hole has to be easy to import fine setting spiral shell The effect of bolt, M12mm × 25mm screwed hole has the effect screwing in trimming bolt and micro- power fastening jaw insert, and therefore, 1 micro- Adjust bolt to screw in 1 fine setting screwed hole 3 and micro- power can fasten jaw insert, you can effectively prevent the movable of jaw insert Or shift and meet the requirement of serviceability.
Described jaw insert includes being fixed cavity 4 and is formed (see Fig. 5 a) by fixing lug boss 5 two parts, jaw insert Concave, convex part corresponds to that jaw body is convex, recess divides (see Fig. 3 a) respectively, that is, jaw insert fixed cavity 4 and jaw body fix convex Platform 1 part matches, and jaw insert is matched by fixing cavity 2 part of fixing lug boss 5 part and jaw body, can effectively prevent from clamping Before and after mouthful insert with move left and right or shift, can effectively be fixedly installed in jaw body.In the present embodiment, by fixing cavity 4 is the curved cavity of laterally zygomorphic length × depth × thickness a size of 59mm × (50-34)/2mm × 25mm, by fixing lug boss 5 is Left and right two parts boss structure of laterally zygomorphic length × width x thickness a size of (90-59)/2mm × 50mm × 25mm, can be effective It is fixedly installed in jaw body.
Shown in reference picture 4a and Fig. 4 b, described trimming bolt screws in fine setting screwed hole and can achieve micro- power fastening jaw edge Block, the specification of the present embodiment trimming bolt is M12mm × 50mm, and trimming bolt is matched with jaw body fine setting screwed hole 3 and is connected And realize micro- power fastening, can effectively prevent the movable of jaw insert or shift.
The fixing assembling step of the convex-concave assembling structure of the jaw body of the present invention and jaw insert is as follows:By jaw insert Concaveconvex structure (see Fig. 5 a) is placed directly within the convex-concave structure of corresponding jaw body (see Fig. 4 a), then by jaw insert slightly to the left Movement makes the left surface of right projection of jaw insert fit completely with the right flank of the right projection of fixing lug boss 1, finally Again the trimming bolt of specification M12mm × 50mm is screwed in carry out in fine setting screwed hole 3 micro- power fastening (with consolidated as shown in Figure 5 a Determine boss 5 upper concavity slightly to contact), ultimately form by jaw body, jaw insert and trimming bolt and will electricity The jaw body of hot upsetting round bar composition and the convex-concave assembling structure (see Fig. 6 a and Fig. 6 b) of jaw insert.
By technique scheme as can be seen that the present invention has following distinguishing feature:
(1) two difficult problems are efficiently solved:One is the difficult problem that effectively solving jaw body is difficult fixing assembling jaw insert, two It is effectively solving jaw body and the short difficult problem of jaw insert service life.
(2) effectively increase the fixing assembling efficiency of jaw insert:Improve jaw insert at least 15 times of efficiency of fixed installation More than, that is, by existing every clamping heat cold drawn steel and hot-rolled steel round bar respectively about 200~250 and 40~60 when then necessary The every clamping being fixed till now by screwing fastening bolt heats round bar and reaches pact during jaw insert service life Just it is fixed installation when 3000~3750 and 750~900, only need in other words fix in jaw insert service life Install 1 time.
(3) effectively increase the service life of jaw body and jaw insert:Wherein improve jaw body service life at least 5 Times, that is, by existing every clamping heat cold drawn steel and hot-rolled steel round bar respectively about 15~160,000 and 3~40,000 when scrap point Do not bring up to about 45~800,000 and 15~200,000 just to scrap;Wherein improve at least 2.5 times of jaw insert service life, that is, by Existing every clamping heating cold drawn steel and hot-rolled steel round bar respectively about 1200~1500 and 300~350 when scrap and distinguish Bring up to about 3000~3750 and 750~900 just scrap.
The above is only the preferred embodiment of the present invention it is noted that ordinary skill people for the art For member, on the premise of without departing from the technology of the present invention principle, some improvement can also be made and deform, these improve and deform Also should be regarded as protection scope of the present invention.

Claims (4)

1. the convex-concave assembling structure of a kind of jaw body and jaw insert is it is characterised in that include:Jaw body, jaw insert and micro- Tune bolt, wherein jaw body are convex, recess corresponds to jaw insert concave, convex part respectively, and trimming bolt screws in and opens up on jaw body Fine setting screwed hole (3) micro- power fastening jaw insert.
2. the convex-concave assembling structure of jaw body as claimed in claim 1 and jaw insert is it is characterised in that described jaw body bag Include fixing lug boss (1), fixing cavity (2) and fine setting screwed hole (3), fixing lug boss (1) is located at the intermediate symmetry of fixing cavity (2) Upper and lower, be laterally zygomorphic rectangular structure, match with jaw insert length × depth × thickness curved cavity;Anchor Chamber (2) is located at the part beyond the fixing lug boss (1) in the middle of jaw body, is laterally zygomorphic left and right two parts curved cavity, Gu The convex-concave structure determining cavity is matched with the concaveconvex structure of jaw insert, respectively for fixing assembling jaw insert to prevent jaw Insert before and after with move left and right or shift;Fine setting screwed hole (3) is located in fixing lug boss (1) and fixing cavity (2) top Between locate, trimming bolt can screw in and in screwed hole, realize the fastening of micro- power.
3. the convex-concave assembling structure of jaw body as claimed in claim 2 and jaw insert is it is characterised in that described fine setting screw thread The combinative structure that hole (3) is made up of the entrance hole on top and the screwed hole of bottom, entrance hole is used for importing trimming bolt, screw thread Hole is used for screwing in trimming bolt and micro- power fastening jaw insert.
4. the convex-concave assembling structure of jaw body as claimed in claim 2 and jaw insert is it is characterised in that described jaw insert Including being fixed cavity (4) and by fixing lug boss (5), matched with fixing lug boss (1) by fixing cavity (4), by fixing lug boss (5) match with fixing cavity (2).
CN201610158670.5A 2016-03-18 2016-03-18 The convex-concave assembling structure of jaw body and jaw insert Active CN106391970B (en)

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Application Number Priority Date Filing Date Title
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Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3733873A (en) * 1970-06-05 1973-05-22 Hatebur Ag F B Method of and apparatus for compression forging of components
SU528991A1 (en) * 1975-06-12 1976-09-25 Stamp for upsetting bulges at the ends of pipes
JPS58176042A (en) * 1982-04-07 1983-10-15 Kansai Tekko Kk Die of horizontal press
US4473738A (en) * 1981-10-05 1984-09-25 Dayton Superior Corporation Method and apparatus for hot forming a polygonal head on a snap tie rod
RU2014936C1 (en) * 1990-10-10 1994-06-30 Акционерное общество "Пермские моторы" Method of electric upsetting of end thickened portions of rod blanks
JPH09285836A (en) * 1996-04-23 1997-11-04 Fuji Oozx Inc Electrode device for electric forging machine
KR20100091731A (en) * 2009-02-11 2010-08-19 삼미금속 주식회사 Device for electrical upset
CN102049458A (en) * 2009-10-30 2011-05-11 郑州市地幔科技有限公司 Extrusion molding method and equipment for integrated heavy drill rod and square drill rod

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3733873A (en) * 1970-06-05 1973-05-22 Hatebur Ag F B Method of and apparatus for compression forging of components
SU528991A1 (en) * 1975-06-12 1976-09-25 Stamp for upsetting bulges at the ends of pipes
US4473738A (en) * 1981-10-05 1984-09-25 Dayton Superior Corporation Method and apparatus for hot forming a polygonal head on a snap tie rod
JPS58176042A (en) * 1982-04-07 1983-10-15 Kansai Tekko Kk Die of horizontal press
RU2014936C1 (en) * 1990-10-10 1994-06-30 Акционерное общество "Пермские моторы" Method of electric upsetting of end thickened portions of rod blanks
JPH09285836A (en) * 1996-04-23 1997-11-04 Fuji Oozx Inc Electrode device for electric forging machine
KR20100091731A (en) * 2009-02-11 2010-08-19 삼미금속 주식회사 Device for electrical upset
CN102049458A (en) * 2009-10-30 2011-05-11 郑州市地幔科技有限公司 Extrusion molding method and equipment for integrated heavy drill rod and square drill rod

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Inventor after: Li Zhiguang

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Inventor after: Gao Shan

Inventor after: Yin Guohua

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