CN105618655A - Jack type clamping structure of jaw insert - Google Patents
Jack type clamping structure of jaw insert Download PDFInfo
- Publication number
- CN105618655A CN105618655A CN201610157481.6A CN201610157481A CN105618655A CN 105618655 A CN105618655 A CN 105618655A CN 201610157481 A CN201610157481 A CN 201610157481A CN 105618655 A CN105618655 A CN 105618655A
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- CN
- China
- Prior art keywords
- jaw insert
- hole
- clamping
- round bar
- jaw
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
- B21J13/00—Details of machines for forging, pressing, or hammering
- B21J13/08—Accessories for handling work or tools
- B21J13/10—Manipulators
Abstract
The invention relates to the technical field of forging, in particular to a jack type clamping structure of a jaw insert. The structure of the jaw insert aims at effectively solving the problem that in a jaw insert of an existing horizontal type electric heating upsetting machine, an ultra-short round bar with the length smaller than that of the jaw insert or with the width smaller than that of a jaw body cannot be clamped and heated. The structure of the jaw insert comprises two main parts including a front jaw insert body (1) and a back jaw insert body (2), and the appearance structures of the front jaw insert body (1) and the back jaw insert body (2) are of front-and-back asymmetric convex-concave matched arrangement structures. The jack type clamping structure of the jaw insert is an effective structure for clamping and heating the ultra-short round bar; and the structure is simple, the clamping process is simple, the efficiency is high, the reliability is high, and the service life is long.
Description
Technical field
The invention belongs to technical field of forging, it relates to the jack type clamping structure of a kind of jaw insert.
Background technology
With reference to shown in Fig. 1 a to Fig. 2 b, the series horizontal electricity hot headers such as existing D91, D92, D93 (following general designation electricity hot headers) are the forging equipments completing 1 round steel bar one end local heating simultaneously with assembling jumping-up 2 work steps, and electric heating upsetting round bar diameter specifications is Electric heating upsetting round bar minimum length should be greater than jaw insert length or jaw body width dimensions (jaw insert length or jaw body width are substantially identical, are generally 70mm��92mm).
Electricity hot headers work before, jaw insert is fixed clamping on jaw body, round bar by clamping on jaw insert. the action process of electricity hot headers is: is placed in front jaw insert cavity by 1 round bar radial direction clamp clamping and starts electricity hot headers work switch simultaneously, front jaw insert and rear jaw insert relative movement, make the jaw insert super short round bar radial surface of clamping, heading push rod moves in the jaw insert cavity after promoting edge, super short round bar right part closed from the right side to the left to moving left, therefore, round bar length at least should be greater than jaw insert length or jaw body width, or say, existing jaw insert clamping length can not be less than jaw insert length or the super short round bar of jaw body width.
Electric heating upsetting machine equipment manufacturer and forging producer all attempt to address this problem by reducing jaw body width and jaw insert length method simultaneously, although the problem of super short round bar clamping can be solved, but following insoluble problem occurs: because also having longitudinally 2, left and right at the cavity base plate interior of fixed installation jaw insert part jaw bodyLaterally 1Turnover cooling water pipeline, just side after cavity base plate is also had 1Location blind hole and jaw body cavity above convex part also have the unfavorable factor of jaw body of many impact fixed installation jaw insert working strengths such as 1 or 2 M12mm binding thread holes, cause jaw body very easily to produce the phenomenons such as relatively macrobending, distortion and crackle and pipeline leak and can not normal operation, therefore, existing jaw body use properties extremely unstable.
Summary of the invention
(1) goal of the invention
It is an object of the invention to: the shortcoming existed for above-mentioned prior art, under the prerequisite not changing jaw insert and jaw body width, provide the jack type clamping structure of a kind of jaw insert, object is to overcome above-mentioned shortcoming, can not clamping and the difficult problem heating the super short round bar being less than jaw insert length or jaw body width effectively to solve jaw insert.
(2) technical scheme
In order to solve the problems of the technologies described above, the present invention provides the jack type clamping structure of a kind of jaw insert, comprising: front jaw insert 1 and rear jaw insert 2, front jaw insert 1 is jack type clamping structure, this structure comprises importing hole, clamping hole and leadout hole from the right side to a left side, importing hole is round table-like cavity taper hole, and clamping hole is round tube hole, and leadout hole is the recessed hole of semicircle; Rear jaw insert 2 is the recessed structure in the left convex right side, from left to right comprise the effect that the recessed plane of left semicircle leadout hole and the right side has the super short round bar part of jaw insert 2 contact part after auxiliary clamping, for heating and the jumping-up of super short round bar and prevent the movable of super short round bar or displacement.
Wherein, the round table-like cavity taper hole of to be angle be in described importing hole ��, �� chooses 15 ��; Clamping hole is diameter and length is the round tube hole of (D �� L) mm, and wherein D=[d+ (0.5��1.0)] mm, d are the diameter of clamping round bar, any one numerical value in L=(20��30) mm; The recessed pore structure of semicircle of leadout hole to be diameter be 0.5Dmm.
Wherein, the recessed respective outer side edges of described left semicircle leadout hole structure and front jaw insert 1 left part leadout hole part uses, and half circular diameter is 0.5Dmm, and wherein D=[d+ (0.5��1.0)] mm, d are clamping round bar diameter; On the right side of left semicircle leadout hole with on the left of front jaw insert (1) clamping hole, there is the gap of �� mm, any one numerical value in ��=(2��3) mm; The clamping hole, right portion of right recessed two dimensional structure and front jaw insert 1 and the convex flat face respective outer side edges of leadout hole part use, and have fixing rear jaw insert 2 and act on.
(3) useful effect
The jack type clamping structure of the jaw insert that technique scheme provides, under the prerequisite not changing jaw insert length or jaw body width, efficiently solving jaw insert clamping and heated length can not be less than the difficult problem of super short round bar of jaw insert length or jaw body width; This structure round bar clamping process is simple, and jaw insert fixed installation process is simple, efficiency height, reliability height, jaw insert high life.
Accompanying drawing explanation
Fig. 1 a is existing a kind of jaw insert front view;
Fig. 1 b is the left view of Fig. 1 a;
Fig. 2 a is existing another kind of jaw insert front view;
Fig. 2 b is the left view of Fig. 2 a;
Fig. 3 a is the front view of the front jaw insert 1 of the present invention;
Fig. 3 b is the left view of Fig. 3 a;
Fig. 3 c is the vertical view of Fig. 3 a;
Fig. 4 a is the front view of the rear jaw insert 2 of the present invention;
Fig. 4 b is the left view of Fig. 4 a;
Fig. 4 c is the vertical view of Fig. 4 a;
Fig. 5 a is the jaw insert assembling front view (jaw insert 2 without issue, two dot chain line place is the super short round bar position being less than jaw insert length or jaw body width after clamping, and the P of band arrow represents the direction of round bar upsetting jacking force) of the present invention;
Fig. 5 b is the left view (containing rear jaw insert 2) of Fig. 5 a;
Fig. 5 c is the vertical view (containing rear jaw insert 2) of Fig. 5 a.
Embodiment
For making the object of the present invention, content and advantage clearly, below in conjunction with drawings and Examples, the specific embodiment of the present invention is described in further detail.
With reference to shown in Fig. 5 a and Fig. 5 b, the jack type clamping structure of a kind of jaw insert of the present embodiment comprises front jaw insert 1 and rear jaw insert 2 two main integral parts, and the contour structures of front jaw insert 1 and rear jaw insert 2 is that the asymmetric convex-concave coupling in front and back arranges structure.
With reference to shown in Fig. 3 a, front jaw insert 1 is jack type clamping structure, this structure from the right side to a left side by importing hole, clamping hole and leadout hole three part composition, import hole to be angle be the round table-like cavity taper hole of ��, clamping hole is diameter and length is the round tube hole of (D �� L) mm, the recessed hole of semicircle of leadout hole to be diameter be 0.5Dmm, be the super short round bar for being less than jaw insert length or jaw body width clamping and prevent super short round bar electric heating upsetting with front upper and lower and movable or be shifted key structure, under the prerequisite not changing jaw insert length or jaw body width, can effectively increase the radial contact area with round bar, also can realize being placed in jaw insert cavity by existing clamp clamping round bar and press electricity hot headers work switch simultaneously and carry out synchronous operation, turn into first with clamp directly clamp round bar be placed in the clamping hole of front jaw insert and leadout hole carry out nature fixing after restart work switch and carry out asynchronous operation.
In the present embodiment, import hole to be angle be the round table-like cavity taper hole (being positioned at the right portion of front jaw insert 1 as shown in Figure 3 a) of ��, this angle [alpha] can not excessive can not be excessively little, �� chooses 15 �� of best results: can improve super short round bar jack clamping efficiency time excessive, but again reduce jaw insert working strength; Cross and hour can improve jaw insert working strength, but again reduce super short round bar jack clamping efficiency.
The round tube hole (being positioned at the middle part of front jaw insert 1 as shown in Figure 3 a) of to be diameter and length be in clamping hole (D �� L) mm, wherein D=[d+ (0.5��1.0)] the mm diameter of clamping round bar (d be). This Circularhole diameter D can not excessive can not be excessively little: time excessive, this structure circular hole interior surface and round bar radial surface contact area are crossed little and are affected electric heating upsetting efficiency, cross and hour can increase this structure circular hole interior surface and round bar radial surface contact friction force and affect electric heating upsetting efficiency and the work-ing life of reduction jaw insert. With clampingRound bar is example, if round bar is surperficial more smooth cold drawn steel, then this structure Circularhole diameter D should choose smaller value, can directly choose D and beIf round bar is surperficial more coarse hot-rolled steel, then this structure Circularhole diameter D chooses the best results of higher value, can choose in practiceIn any one numerical value, asOrDeng.
The round tube hole (being positioned at the middle part of front jaw insert 1 as shown in Figure 3 a) of to be diameter and length be in clamping hole (D �� L) mm, wherein this circular hole length L also can not excessive can not be excessively little: the blank after electric heating upsetting then may be caused time excessive can not to take out from this circular hole, cross the clamping stability that hour then can affect super short round bar, any one numerical value in L=(20��30) mm can be chosen in practice, such as 20mm, 25mm or 30mm etc.
Leadout hole (is positioned at the left part of front jaw insert 1 as shown in Figure 3 a) for diameter is the recessed pore structure of semicircle of 0.5Dmm, and diameter D is identical with above-mentioned clamping bore dia D.
Rear jaw insert 2 is the recessed structure in the left convex right side, from left to right it is made up of left semicircle leadout hole and the right side recessed plane 2 parts, the effect with the super short round bar part of jaw insert 2 contact part after auxiliary clamping, is mainly used in heating and the jumping-up of super short round bar and prevents the movable of super short round bar or displacement.
Left semicircle leadout hole structure (is positioned at the left part of rear jaw insert 2 as shown in fig. 4 a) and the use of the recessed respective outer side edges of front jaw insert 1 left part leadout hole part, half circular diameter is 0.5Dmm, wherein D=[d+ (0.5��1.0)] mm (d is clamping round bar diameter), the diameter D size of this structure is identical with the left part leadout hole of front jaw insert 1 with effect; On the right side of left semicircle leadout hole with on the left of front jaw insert 1 clamping hole, there is the gap of �� mm, this gap can not excessive can not be excessively little: time excessive, cavity circular arc and round bar radial surface contact area are crossed little and are affected electric heating upsetting efficiency, cross and hour can increase cavity arc-shaped surface and round bar radial surface contact friction force and affect electric heating upsetting efficiency and reduce the work-ing life of jaw insert, any one numerical value in ��=(2��3) mm can be chosen in practice, such as 2mm, 2.5mm or 3mm etc.
Right recessed two dimensional structure (being positioned at the right portion of rear jaw insert 2 as shown in fig. 4 a), uses with the convex flat face respective outer side edges of the clamping hole, right portion of front jaw insert 1 and leadout hole part, has fixing rear jaw insert 2 and acts on.
Clamping and the heating work process of the jack type clamping structure of the jaw insert of the present invention are as follows: 1. loading stage: first with clamp clamp 1 super short round bar radial from the right side to a left side by importing in clamping hole and leadout hole that hole is inserted into front jaw insert 1 as shown in Figure 5 a, then move out of clamp (not starting electricity hot headers work switch); 2. the clamping stage: start electricity hot headers work switch, front jaw insert 1 and rear jaw insert 2 relative movement, make the jaw insert structure super short round bar radial surface of clamping, meanwhile, heading push rod moves in the jaw insert cavity after promoting edge, super short round bar right part closed from the right side to the left to moving left; 3. heating and the jumping-up stage: front jaw insert 1 and rear jaw insert 2 are in relative static conditions after closing, heading push rod continues to move to the left in the jaw insert cavity after promoting edge, super short round bar right part closed from the right side to moving left, and carries out heating and progressively form, with jumping-up, the electric heating upsetting blank that desired shape is a first bar after super short round bar contacts with right side anvil block; 4. the feeding stage: finally restarting electricity hot headers backhaul switch, the electric heating upsetting blank after formed thereby falls into materials-stored box under gravity automatically, completes the working process of 1 super short round bar clamping and heating.
By technique scheme it may be seen that the present invention is under the prerequisite not changing jaw insert length or jaw body width, efficiently solving jaw insert clamping and heated length can not be less than the difficult problem of super short round bar of jaw insert length or jaw body width; This structure round bar clamping process is simple, and jaw insert fixed installation process is simple, efficiency height, reliability height, jaw insert high life.
The above is only the preferred embodiment of the present invention; it is noted that for those skilled in the art, under the prerequisite not departing from the technology of the present invention principle; can also making some improvement and distortion, these improve and distortion also should be considered as protection scope of the present invention.
Claims (3)
1. the jack type clamping structure of a jaw insert, it is characterized in that, comprise: front jaw insert (1) and rear jaw insert (2), front jaw insert (1) is jack type clamping structure, this structure comprises importing hole, clamping hole and leadout hole from the right side to a left side, importing hole is round table-like cavity taper hole, and clamping hole is round tube hole, and leadout hole is the recessed hole of semicircle; Rear jaw insert (2) is the recessed structure in the left convex right side, from left to right comprise the effect that the recessed plane of left semicircle leadout hole and the right side has the super short round bar part of jaw insert (2) contact part after auxiliary clamping, for heating and the jumping-up of super short round bar and prevent the movable of super short round bar or displacement.
2. the jack type clamping structure of jaw insert as claimed in claim 1, it is characterised in that, the round table-like cavity taper hole of to be angle be in described importing hole ��, �� chooses 15 ��; Clamping hole is diameter and length is the round tube hole of (D �� L) mm, and wherein D=[d+ (0.5��1.0)] mm, d are the diameter of clamping round bar, any one numerical value in L=(20��30) mm; The recessed pore structure of semicircle of leadout hole to be diameter be 0.5Dmm.
3. the jack type clamping structure of jaw insert as claimed in claim 1 or 2, it is characterized in that, the recessed respective outer side edges of described left semicircle leadout hole structure and front jaw insert (1) left part leadout hole part uses, half circular diameter is 0.5Dmm, wherein D=[d+ (0.5��1.0)] mm, d are clamping round bar diameter; On the right side of left semicircle leadout hole with on the left of front jaw insert (1) clamping hole, there is the gap of �� mm, any one numerical value in ��=(2��3) mm; The clamping hole, right portion of right recessed two dimensional structure and front jaw insert (1) and the convex flat face respective outer side edges of leadout hole part use, and have fixing rear jaw insert (2) effect.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610157481.6A CN105618655B (en) | 2016-03-18 | 2016-03-18 | A kind of jack type clamping structure of jaw insert |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610157481.6A CN105618655B (en) | 2016-03-18 | 2016-03-18 | A kind of jack type clamping structure of jaw insert |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105618655A true CN105618655A (en) | 2016-06-01 |
| CN105618655B CN105618655B (en) | 2018-05-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610157481.6A Active CN105618655B (en) | 2016-03-18 | 2016-03-18 | A kind of jack type clamping structure of jaw insert |
Country Status (1)
| Country | Link |
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| CN (1) | CN105618655B (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS54132453A (en) * | 1978-04-06 | 1979-10-15 | Sumitomo Metal Ind Ltd | Handling device for upset forging for long size steel pipe |
| JPH01181941A (en) * | 1988-01-14 | 1989-07-19 | Daido Steel Co Ltd | Anvil exchanging device |
| SU1666259A1 (en) * | 1989-03-31 | 1991-07-30 | Производственное объединение "Ленинградский завод турбинных лопаток" им.50-летия СССР | Blank-holding device used in stamping and upsetting |
| RU2014936C1 (en) * | 1990-10-10 | 1994-06-30 | Акционерное общество "Пермские моторы" | Method of electric upsetting of end thickened portions of rod blanks |
| CN201871664U (en) * | 2010-12-02 | 2011-06-22 | 鞍山太阳锻造实业有限公司 | Automobile front-axle forging-die character-head pressing mould |
| KR101072478B1 (en) * | 2009-02-11 | 2011-10-11 | 삼미금속 주식회사 | device for electrical upset |
| CN202270903U (en) * | 2011-08-01 | 2012-06-13 | 江阴南工锻造有限公司 | Embedded forging die |
| CN204381267U (en) * | 2014-12-29 | 2015-06-10 | 苏州宝业锻造有限公司 | With the tubing head loose tool of boss |
-
2016
- 2016-03-18 CN CN201610157481.6A patent/CN105618655B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS54132453A (en) * | 1978-04-06 | 1979-10-15 | Sumitomo Metal Ind Ltd | Handling device for upset forging for long size steel pipe |
| JPH01181941A (en) * | 1988-01-14 | 1989-07-19 | Daido Steel Co Ltd | Anvil exchanging device |
| SU1666259A1 (en) * | 1989-03-31 | 1991-07-30 | Производственное объединение "Ленинградский завод турбинных лопаток" им.50-летия СССР | Blank-holding device used in stamping and upsetting |
| RU2014936C1 (en) * | 1990-10-10 | 1994-06-30 | Акционерное общество "Пермские моторы" | Method of electric upsetting of end thickened portions of rod blanks |
| KR101072478B1 (en) * | 2009-02-11 | 2011-10-11 | 삼미금속 주식회사 | device for electrical upset |
| CN201871664U (en) * | 2010-12-02 | 2011-06-22 | 鞍山太阳锻造实业有限公司 | Automobile front-axle forging-die character-head pressing mould |
| CN202270903U (en) * | 2011-08-01 | 2012-06-13 | 江阴南工锻造有限公司 | Embedded forging die |
| CN204381267U (en) * | 2014-12-29 | 2015-06-10 | 苏州宝业锻造有限公司 | With the tubing head loose tool of boss |
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| Publication number | Publication date |
|---|---|
| CN105618655B (en) | 2018-05-08 |
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Inventor after: Li Zhiguang Inventor after: Zhao Rui Inventor after: Zhang Xuedong Inventor after: Di Hai Inventor after: Tian Tian Inventor after: Zhang Zengping Inventor before: Li Zhiguang Inventor before: Zhang Xuedong Inventor before: Zhao Rui Inventor before: Di Hai Inventor before: Tian Tian Inventor before: Zhang Zengping |
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Inventor after: Li Zhiguang Inventor after: Zhang Xuedong Inventor after: Wang Jian Inventor after: Qin Xinfeng Inventor after: Di Hai Inventor after: Liu Jilin Inventor before: Li Zhiguang Inventor before: Zhao Rui Inventor before: Zhang Xuedong Inventor before: Di Hai Inventor before: Tian Tian Inventor before: Zhang Zengping |
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