CN107350415B - Clamp mechanism of cold header - Google Patents
Clamp mechanism of cold header Download PDFInfo
- Publication number
- CN107350415B CN107350415B CN201710640530.6A CN201710640530A CN107350415B CN 107350415 B CN107350415 B CN 107350415B CN 201710640530 A CN201710640530 A CN 201710640530A CN 107350415 B CN107350415 B CN 107350415B
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- Prior art keywords
- clamp
- shaft
- cold
- gear
- clamping
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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
- B21J13/12—Turning means
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Forging (AREA)
Abstract
The invention discloses a clamp mechanism of a cold header, which comprises a clamp seat and a rotating shaft rotatably arranged in the clamp seat, and is characterized in that: the rotating shaft is designed to be a segmented upper shaft and a segmented lower shaft, the upper shaft is used for transmitting the lower shaft through gear reduction, the rotating angle of the upper shaft and the rotating angle of the lower shaft are 2:1, the upper shaft is connected with a 180-degree turnover gear, the lower shaft is connected with a clamp, the clamp is provided with mounting holes for mounting clamp pieces, and only one clamp piece is arranged; the pliers sheet is provided with a pliers handle part inserted into the mounting hole and a clamping part for clamping the cold-heading workpiece, the clamping part is provided with a long clamping hole with a lateral opening in the front direction, the hole wall of the long clamping hole is provided with an elastic positioning piece, the clamping part is L-shaped in the lateral direction, and the L-shaped design enables the clamping part to give up the stamping action space of the cold-heading die when the cold-heading workpiece is laterally arranged. The invention can be used for cold heading of the side surface of the workpiece, and has simple structure and wide application range.
Description
Technical Field
The invention relates to a cold header, in particular to a clamping mechanism of the cold header.
Background
The cold header is a device for cutting and cold extruding various processed metal wires to form the wires in a mold by cold heading, and is used for processing various standard and nonstandard fasteners and steam friction fittings. In the prior art, the clamp mechanism generally only performs 180-degree overturning, so that the cold heading stamping die performs cold heading processing on the workpiece in the two directions, and the side surface of the workpiece cannot be subjected to cold heading processing. For this purpose, clamps that can be turned 90 degrees outwards have been designed, but have problems: the structure is complex, the cold heading position of the side surface of the workpiece is limited by the alignment of the cold heading die and the bottom die, namely, the cold heading position of the side surface of the workpiece cannot deviate too much from the center, and the side surface of the workpiece is limited by the design of the clamp, so that the side surface of the workpiece can only be subjected to cold heading to form a hole, and the application range is narrow.
Disclosure of Invention
In view of the defects existing in the background technology, the invention aims to provide the cold header clamp mechanism which can be used for cold header of the side face of a workpiece and has the advantages of simple structure and wide application range.
The invention is implemented by the following technical scheme:
the cold header clamp mechanism comprises a clamp seat and a rotating shaft which is rotationally arranged in the clamp seat, and is characterized in that: the rotating shaft is designed to be a segmented upper shaft and a segmented lower shaft, the upper shaft is used for transmitting the lower shaft through gear reduction, the rotating angle of the upper shaft and the rotating angle of the lower shaft are 2:1, the upper shaft is connected with a 180-degree turnover gear, the lower shaft is connected with a clamp, the clamp is provided with mounting holes for mounting clamp pieces, and only one clamp piece is arranged; the pliers sheet is provided with a pliers handle part inserted into the mounting hole and a clamping part for clamping the cold-heading workpiece, the clamping part is provided with a long clamping hole with a lateral opening in the front direction, the hole wall of the long clamping hole is provided with an elastic positioning piece, the clamping part is L-shaped in the lateral direction, and the L-shaped design enables the clamping part to give up the stamping action space of the cold-heading die when the cold-heading workpiece is laterally arranged.
According to the cold header clamp mechanism, when the turnover gear turns 180 degrees, the clamp sheets turn only 90 degrees in the horizontal direction, so that the side faces of the workpiece face the cold header stamping die, and at the moment, the center of the workpiece only changes transversely; the L-shaped design of the clamping part of the clamp piece gives up the stamping action space of the cold heading die when the cold heading is performed on the side face of the workpiece, and the clamping hole is a long hole with a lateral opening, so that the workpiece can transversely and freely enter and exit the long clamping hole to meet the working requirement of cold heading on the side face of the workpiece, and the shape of the cold heading on the side face of the workpiece is basically not affected.
Preferably, the top of the clamp seat is connected with a speed reducer, an input gear, an intermediate transmission shaft and an output gear are arranged in the speed reducer, the input gear is in transmission engagement with a first reduction gear on the intermediate transmission shaft, the output gear is in transmission engagement with a second reduction gear on the intermediate transmission shaft, the input gear is connected with an upper shaft of the rotating shaft, and the output gear is connected with a lower shaft of the rotating shaft.
Preferably, the elastic positioning piece is a combination of a steel ball and a spring, and the steel ball part is elastically exposed out of the wall of the long clamping hole.
Drawings
The invention has the following drawings:
figure 1 is a schematic view of the structure of the present invention,
fig. 2 is a view of the jaw of fig. 1 rotated 90 degrees.
Detailed Description
As shown in the figure, the cold header clamp mechanism comprises a clamp seat 4 and a rotating shaft rotatably arranged in the clamp seat 4, wherein the top of the clamp seat 4 is connected with a speed reducer 13, an input gear 16, an intermediate transmission shaft 14 and an output gear 17 are arranged in the speed reducer 13, the input gear 16 is in transmission engagement with a first reduction gear 15 on the intermediate transmission shaft, and the output gear 17 is in transmission engagement with a second reduction gear 12 on the intermediate transmission shaft; the rotating shaft adopts a segmented upper shaft and lower shaft design, the upper shaft 2 is connected with the input gear 16, the lower shaft 3 is connected with the output gear 17, the lower shaft 3 is driven by the upper shaft 2 through gear reduction, the rotating angle of the upper shaft 2 and the rotating angle of the lower shaft 3 are 2:1, the upper shaft 2 is connected with the 180-degree turnover gear 1, and the lower shaft 3 is connected with the clamp 5. The pliers clamp is characterized in that the pliers clamp is provided with a mounting hole for mounting pliers plates, one pliers plate is provided with a pliers handle 6 inserted into the mounting hole and a clamping part 7 for clamping a cold heading workpiece, the clamping part 7 is provided with a long clamping hole 8 with a lateral opening in the front direction, the hole center of the long clamping hole 8 is aligned with the central axis of the rotating shaft, the hole wall of the long clamping hole 8 is provided with an elastic positioning piece, the elastic positioning piece is a combination of a steel ball 9, a spring 10 and a jackscrew 11, the steel ball 9 is partially elastically exposed out of the hole wall of the long clamping hole 8, the clamping part 7 is L-shaped in the side direction (see figure 2), and the L-shaped design enables the clamping part 7 to give up a stamping action space A when the cold heading workpiece is laterally headed by a stamping die.
The cold header clamp mechanism works as follows: when the clamp mechanism moves from one cold heading station to the next cold heading station, the turnover gear 1 turns 180 degrees to drive the clamp piece to turn 90 degrees in the horizontal direction, so that the side face of the workpiece faces the cold heading die, and the center of the workpiece only changes transversely, but because the clamping part 7 of the clamp piece is provided with the clamping hole 8 in the front direction and the side face is provided with an L-shaped design, the side face cold heading position of the workpiece can adapt to the alignment of the cold heading die and the bottom die in a large range through the axial movement of the workpiece in the clamping hole (the axial movement of the workpiece in the clamping hole is determined by the ejection distance of the ejector rod in the previous cold heading process, and the distance is designed according to requirements); and because the L-shaped design of the clamp piece clamping part 7 gives way to the stamping action space A of the cold heading die when the side face of the workpiece is cold-headed, the clamp hole 8 is a long hole with a lateral opening, the workpiece can transversely and freely enter and exit the long clamp hole 8 so as to meet the working requirement of the cold heading of the side face of the workpiece, and thus, the shape of the cold heading of the side face of the workpiece is basically not influenced. Therefore, the cold header clamp mechanism is simple in structure and wide in application range.
Claims (3)
1. The cold header clamp mechanism comprises a clamp seat and a rotating shaft which is rotationally arranged in the clamp seat, and is characterized in that: the rotating shaft is designed to be a segmented upper shaft and a segmented lower shaft, the upper shaft is used for transmitting the lower shaft through gear reduction, the rotating angle of the upper shaft and the rotating angle of the lower shaft are 2:1, the upper shaft is connected with a 180-degree turnover gear, the lower shaft is connected with a clamp, the clamp is provided with mounting holes for mounting clamp pieces, and only one clamp piece is arranged; the pliers sheet is provided with a pliers handle part inserted into the mounting hole and a clamping part for clamping the cold-heading workpiece, the clamping part is provided with a long clamping hole with a lateral opening in the front direction, the hole wall of the long clamping hole is provided with an elastic positioning piece, the clamping part is L-shaped in the lateral direction, and the L-shaped design enables the clamping part to give up the stamping action space of the cold-heading die when the cold-heading workpiece is laterally arranged.
2. The cold header clamp mechanism of claim 1, wherein: the top of the clamp seat is connected with a speed reducer, an input gear, an intermediate transmission shaft and an output gear are arranged in the speed reducer, the input gear is in transmission engagement with a first reduction gear on the intermediate transmission shaft, the output gear is in transmission engagement with a second reduction gear on the intermediate transmission shaft, the input gear is connected with an upper shaft of the rotating shaft, and the output gear is connected with a lower shaft of the rotating shaft.
3. The cold header clamp mechanism of claim 1, wherein: the elastic locating piece is a combination of a steel ball and a spring, and the steel ball part is elastically exposed out of the wall of the long clamping hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710640530.6A CN107350415B (en) | 2017-07-31 | 2017-07-31 | Clamp mechanism of cold header |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710640530.6A CN107350415B (en) | 2017-07-31 | 2017-07-31 | Clamp mechanism of cold header |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107350415A CN107350415A (en) | 2017-11-17 |
| CN107350415B true CN107350415B (en) | 2023-05-12 |
Family
ID=60286572
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710640530.6A Active CN107350415B (en) | 2017-07-31 | 2017-07-31 | Clamp mechanism of cold header |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107350415B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108941408A (en) * | 2018-08-30 | 2018-12-07 | 安徽阳天机械工业有限公司 | A kind of Multistation cold upsetting formation machine with turn over function |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5503378A (en) * | 1992-10-30 | 1996-04-02 | Delaware Capital Formation, Inc. | Clamping chuck |
| CN204724783U (en) * | 2015-07-02 | 2015-10-28 | 河北钢诺新材料科技有限公司 | One forges steel ball and turns over globe pliers |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2800828A1 (en) * | 1978-01-10 | 1979-07-12 | Krupp Gmbh | DEVICE FOR TURNING WORKPIECES |
| CN103659411B (en) * | 2012-08-31 | 2016-03-09 | 鸿富锦精密工业（深圳）有限公司 | Turning device |
| CN204122680U (en) * | 2014-07-21 | 2015-01-28 | 瑞安市友邦标准件有限公司 | Cold headers clamp transport mechanism |
| CN204470474U (en) * | 2015-02-03 | 2015-07-15 | 瑞安市瑞春标准件有限公司 | Cold headers clamp structure |
| CN204842832U (en) * | 2015-07-01 | 2015-12-09 | 宁国市瑞普密封件有限公司 | Novel cold heading machine clamp device |
| JP3207244U (en) * | 2016-08-08 | 2016-11-04 | 株式会社阪村機械製作所 | Blank transfer device of multistage forging machine |
-
2017
- 2017-07-31 CN CN201710640530.6A patent/CN107350415B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5503378A (en) * | 1992-10-30 | 1996-04-02 | Delaware Capital Formation, Inc. | Clamping chuck |
| CN204724783U (en) * | 2015-07-02 | 2015-10-28 | 河北钢诺新材料科技有限公司 | One forges steel ball and turns over globe pliers |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107350415A (en) | 2017-11-17 |
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Denomination of invention: Cold heading machine clamp mechanism Effective date of registration: 20230922 Granted publication date: 20230512 Pledgee: Industrial Bank Co.,Ltd. Wenzhou Ruian sub branch Pledgor: ZHEJIANG DONGRUI MACHINERY INDUSTRY Co.,Ltd. Registration number: Y2023980058126 |