CN210647774U - Cold drawing clamp for precision forming of copper bar - Google Patents
Cold drawing clamp for precision forming of copper bar Download PDFInfo
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- CN210647774U CN210647774U CN201921176594.6U CN201921176594U CN210647774U CN 210647774 U CN210647774 U CN 210647774U CN 201921176594 U CN201921176594 U CN 201921176594U CN 210647774 U CN210647774 U CN 210647774U
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- clamping
- sliding base
- centre gripping
- eccentric wheel
- copper bar
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Abstract
The utility model discloses a copper bar precision forming cold drawing anchor clamps, including anchor clamps sliding base, anchor clamps sliding base's rear end is used for connecting the hoist pulling force equipment, the last vertical first grip block installation axle and the installation axle of second grip block of being provided with of anchor clamps sliding base, first grip block installation axle with the axle center line perpendicular to of second grip block installation axle anchor clamps sliding base's translation direction, just first grip block installation axle with the epaxial cover of second grip block installation is equipped with first centre gripping eccentric wheel piece and second centre gripping eccentric wheel piece respectively, first centre gripping eccentric wheel piece includes maximum radius end and minimum radius end, maximum radius end orientation anchor clamps sliding base's rear end sets up, just second centre gripping eccentric wheel piece with first centre gripping eccentric wheel piece sets up for vertical face symmetry. The utility model discloses have simple and convenient operation method, and when drawing and the difficult phenomenon of skidding that takes place between the copper bar.
Description
Technical Field
The utility model relates to a copper bar cold drawing former technical field, especially a copper bar precision forming cold drawing anchor clamps.
Background
The copper bar is an industrial metal raw material obtained by carrying out continuous cold extrusion processing on a copper bar through a plurality of cold extrusion forming processes, and in order to obtain a copper bar product with a stricter appearance dimension specification, cold drawing precision forming processing is generally carried out on the copper bar; the copper bar usually needs great pulling force when carrying out cold drawing precision forming processing, just enables the copper bar and passes forming die's nib and carry out moulding, and the pulling force that the feed roll that uses provided is difficult to satisfy the needs of cold drawing processing in the conventional extrusion technology, just so needs to adopt the anchor clamps that have great clamping-force to fix the tip of copper bar, adopts the hoist equipment pulling copper bar that has great pulling force to pass forming die and carries out moulding.
Copper bar precision forming cold drawing anchor clamps among the prior art mainly adopt the cusp chuck of lead screw drive to come the tip of the fixed copper bar of centre gripping, and the anchor clamps of above-mentioned structure not only operate comparatively loaded down with trivial details when using, moreover when drawing easy and the copper bar between take place the phenomenon of skidding.
SUMMERY OF THE UTILITY MODEL
In order to overcome the defects of the prior art, the utility model provides a cold drawing clamp for the precise forming of copper bars, which has a simple and convenient operation method and is not easy to slip between the copper bars when drawing.
The utility model provides a technical scheme that its technical problem adopted is:
a cold drawing clamp for precise forming of a copper bar comprises a clamp sliding base which is horizontally arranged, the front end of the clamp sliding base is used for clamping the copper bar, the rear end of the clamp sliding base is used for connecting a hoisting tension device, a first clamping block mounting shaft and a second clamping block mounting shaft are vertically arranged on the clamp sliding base, the axis connecting line of the first clamping block mounting shaft and the second clamping block mounting shaft is vertical to the translation direction of the clamp sliding base, and a first clamping eccentric wheel block and a second clamping eccentric wheel block are respectively sleeved on the first clamping block mounting shaft and the second clamping block mounting shaft, the first clamping eccentric wheel block comprises a maximum radius end and a minimum radius end, the maximum radius end is arranged towards the rear end of the clamp sliding base, and the second clamping eccentric block and the first clamping eccentric block are symmetrically arranged relative to a vertical plane.
As a further improvement of the above technical solution, a first transmission gear and a second transmission gear are coaxially sleeved on the first clamping block mounting shaft and the second clamping block mounting shaft respectively, and the first transmission gear and the second transmission gear respectively rotate synchronously with the first clamping eccentric block and the second clamping eccentric block; a wrench installation rotating shaft is arranged at the rear end of the clamp sliding base, and the axis of the wrench installation rotating shaft is positioned on the symmetrical surface of the first clamping eccentric wheel block and the second clamping eccentric wheel block; still include two centre gripping spanners, every the centre gripping spanner all include strip lever portion and set up in the arc rack portion of strip lever portion tip, two the equal suit in strip lever portion middle part of centre gripping spanner is in the spanner installation pivot, two the arc rack portion of centre gripping spanner respectively with first drive gear with the meshing of second drive gear.
Compared with the prior art, the beneficial effects of the utility model are that:
the utility model provides a copper bar precision forming cold drawing clamp, only need pull two clamping spanners can control the first clamping eccentric wheel block and the second clamping eccentric wheel block to clamp or loosen the copper bar, therefore has simple and convenient operation method; and first centre gripping eccentric wheel piece and second centre gripping eccentric wheel piece pulling force is big more in the centre gripping, and the centre gripping gets tighter to set up spanner fixing bolt and carry out dual fail-safe, prevent that first centre gripping eccentric wheel piece and second centre gripping eccentric wheel piece from taking off in the pine when the centre gripping, when drawing and the copper bar between the difficult phenomenon of skidding that takes place.
Drawings
The present invention will be further explained with reference to the drawings and examples.
Fig. 1 is a schematic structural diagram of a copper bar precision forming cold drawing clamp of the utility model.
Detailed Description
Referring to fig. 1, fig. 1 is a schematic structural diagram of an embodiment of the present invention.
As shown in fig. 1, a cold drawing fixture for precision forming of copper bars comprises a horizontally arranged fixture sliding base 1, wherein the front end of the fixture sliding base 1 is used for clamping copper bars, the rear end of the fixture sliding base 1 is used for connecting a hoisting tension device, a first clamping block mounting shaft 2 and a second clamping block mounting shaft 3 are vertically arranged on the fixture sliding base 1, the axis connecting line of the first clamping block mounting shaft 2 and the second clamping block mounting shaft 3 is perpendicular to the translation direction of the fixture sliding base 1, a first clamping eccentric wheel block 4 and a second clamping eccentric wheel block 5 are respectively sleeved on the first clamping block mounting shaft 2 and the second clamping block mounting shaft 3, the first clamping eccentric wheel block 4 comprises a maximum radius end 41 and a minimum radius end 42, the maximum radius end 41 is arranged towards the rear end of the fixture sliding base 1, and the second clamping eccentric block 5 and the first clamping eccentric block 4 are arranged in plane symmetry relative to a vertical plane.
Specifically, the front end of anchor clamps sliding base 1 is provided with front end mounting panel 11, be provided with axis horizontally stand pipe installation screw 12 on the front end mounting panel 11, the axis of stand pipe installation screw 12 is located first centre gripping eccentric block 4 with on the plane of symmetry of second centre gripping eccentric block 5, just be provided with cross-section adaptation stand pipe 13 in the stand pipe installation screw 12, cross-section adaptation stand pipe 13 is provided with the cooperation the external screw thread of stand pipe installation screw 12. A first transmission gear 43 and a second transmission gear 51 are coaxially sleeved on the first clamping block mounting shaft 2 and the second clamping block mounting shaft 3 respectively, and the first transmission gear 43 and the second transmission gear 51 respectively rotate synchronously with the first clamping eccentric block 4 and the second clamping eccentric block 5; a wrench installation rotating shaft 14 is arranged at the rear end of the clamp sliding base 1, and the axis of the wrench installation rotating shaft 14 is positioned on the symmetrical plane of the first clamping eccentric wheel block 4 and the second clamping eccentric wheel block 5; still include two centre gripping spanners, every the centre gripping spanner all include strip lever portion 61 with set up in the arc rack portion 62 of strip lever portion 61 tip, two the equal suit in strip lever portion 61 middle part of centre gripping spanner is in on the spanner installation pivot 14, two the arc rack portion 62 of centre gripping spanner respectively with first drive gear 43 with the meshing of second drive gear 51. One end of the strip-shaped lever part 61 of each clamping wrench, which is back to the arc-shaped rack part 62, is provided with a fixing through hole 63 which is horizontal and vertical to the strip-shaped lever part 61; still include spanner fixing bolt 64, spanner fixing bolt 64's one end is provided with nut 65, the other end is provided with nut 66, spanner fixing bolt 64 passes two the fixing hole 63 of centre gripping spanner, and two the fixing hole 63 of centre gripping spanner all is located between nut 65 and the nut 66 of spanner fixing bolt 64. The fixture sliding base is characterized in that a fixture sliding guide rail 7 is arranged at the bottom of the fixture sliding base 1 along the connecting line direction of the front end and the rear end of the fixture sliding base 1, and fixture sliding rollers 71 matched with the fixture sliding guide rail 7 are arranged at the bottom of the fixture sliding base 1.
In operation, firstly, the bar-shaped lever parts 61 of the two clamping wrenches are separated, and the first transmission gear 43 and the second transmission gear 51 are driven by the two arc-shaped rack parts 62 respectively, so that the maximum radius ends 41 of the second clamping eccentric block 5 and the first clamping eccentric block 4 are far away from each other, and the minimum radius ends 42 are close to each other, so as to insert a copper bar to be drawn between the second clamping eccentric block 5 and the first clamping eccentric block 4; according to the difference of copper product cross sectional shape, can change cross section adaptation stand pipe 13 makes the cavity cross section of cross section adaptation stand pipe 13 is the same with copper product cross sectional shape all the time.
After the end of the copper bar is placed between the second clamping eccentric wheel block 5 and the first clamping eccentric wheel block 4, the second clamping eccentric wheel block 5 and the first clamping eccentric wheel block 4 are pulled by the clamping wrench, so that the maximum radius ends 41 are close to each other to clamp the end of the copper bar, and then the two clamping wrenches are fixed by nuts 65 and 66 of the wrench fixing bolt 64, so that the second clamping eccentric wheel block 5 and the first clamping eccentric wheel block 4 are prevented from loosening to clamp the copper bar; in the process of pulling the copper bar, under the action of friction force, the second clamping eccentric wheel block 5 and the first clamping eccentric wheel block 4 have a self-fastening effect on clamping the copper bar.
The above description specifically describes the preferred embodiments of the present invention, but of course, the present invention can also adopt different forms from the above embodiments, and equivalent changes or corresponding modifications made by those skilled in the art without departing from the spirit of the present invention should fall within the protection scope of the present invention.
Claims (5)
1. The utility model provides a copper bar precision forming cold drawing anchor clamps which characterized in that: the copper bar clamping device comprises a clamp sliding base (1) which is horizontally arranged, wherein the front end of the clamp sliding base (1) is used for clamping a copper bar, the rear end of the clamp sliding base (1) is used for connecting a hoisting tension device, a first clamping block mounting shaft (2) and a second clamping block mounting shaft (3) are vertically arranged on the clamp sliding base (1), the axis connecting line of the first clamping block mounting shaft (2) and the second clamping block mounting shaft (3) is perpendicular to the translation direction of the clamp sliding base (1), a first clamping eccentric wheel block (4) and a second clamping eccentric wheel block (5) are respectively sleeved on the first clamping block mounting shaft (2) and the second clamping block mounting shaft (3), the first clamping eccentric wheel block (4) comprises a maximum radius end (41) and a minimum radius end (42), and the maximum radius end (41) is arranged towards the rear end of the clamp sliding base (1), and the second clamping eccentric block (5) and the first clamping eccentric block (4) are arranged symmetrically relative to a vertical plane.
2. The cold drawing anchor clamps of copper bar precision forming of claim 1, characterized in that: the front end of anchor clamps sliding base (1) is provided with front end mounting panel (11), be provided with axis horizontally stand pipe installation screw (12) on front end mounting panel (11), the axis of stand pipe installation screw (12) is located first centre gripping eccentric wheel piece (4) with on the plane of symmetry of second centre gripping eccentric wheel piece (5), just be provided with cross-section adaptation stand pipe (13) in stand pipe installation screw (12), cross-section adaptation stand pipe (13) are provided with the cooperation the external screw thread of stand pipe installation screw (12).
3. The cold drawing anchor clamps of copper bar precision forming of claim 1, characterized in that: a first transmission gear (43) and a second transmission gear (51) are coaxially sleeved on the first clamping block mounting shaft (2) and the second clamping block mounting shaft (3) respectively, and the first transmission gear (43) and the second transmission gear (51) respectively rotate synchronously with the first clamping eccentric block (4) and the second clamping eccentric block (5); a wrench installation rotating shaft (14) is arranged at the rear end of the clamp sliding base (1), and the axis of the wrench installation rotating shaft (14) is positioned on the symmetrical plane of the first clamping eccentric wheel block (4) and the second clamping eccentric wheel block (5); still include two centre gripping spanners, every the centre gripping spanner all include strip lever portion (61) and set up in arc rack portion (62), two of strip lever portion (61) tip of centre gripping spanner all the suit is in strip lever portion (61) middle part of centre gripping spanner on spanner installation pivot (14), two arc rack portion (62) of centre gripping spanner respectively with first drive gear (43) with second drive gear (51) mesh.
4. The cold drawing anchor clamps of copper bar precision forming of claim 3, characterized in that: one end, back to the arc-shaped rack part (62), of the strip-shaped lever part (61) of each clamping wrench is provided with a fixing through hole (63) which is horizontal and vertical to the strip-shaped lever part (61); still include spanner fixing bolt (64), the one end of spanner fixing bolt (64) is provided with nut (65), the other end is provided with nut (66), spanner fixing bolt (64) pass two fixing hole (63) of centre gripping spanner, and two fixing hole (63) of centre gripping spanner all are located between nut (65) and the nut (66) of spanner fixing bolt (64).
5. The cold drawing anchor clamps of copper bar precision forming of claim 1, characterized in that: the fixture sliding base is characterized in that a fixture sliding guide rail (7) is arranged at the bottom of the fixture sliding base (1) along the connecting line direction of the front end and the rear end of the fixture sliding base (1), and a fixture sliding roller (71) matched with the fixture sliding guide rail (7) is arranged at the bottom of the fixture sliding base (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921176594.6U CN210647774U (en) | 2019-07-25 | 2019-07-25 | Cold drawing clamp for precision forming of copper bar |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921176594.6U CN210647774U (en) | 2019-07-25 | 2019-07-25 | Cold drawing clamp for precision forming of copper bar |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210647774U true CN210647774U (en) | 2020-06-02 |
Family
ID=70832965
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921176594.6U Active CN210647774U (en) | 2019-07-25 | 2019-07-25 | Cold drawing clamp for precision forming of copper bar |
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| Country | Link |
|---|---|
| CN (1) | CN210647774U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113732090A (en) * | 2021-08-23 | 2021-12-03 | 江西耐乐铜业有限公司 | Special clamp for drawing process of oxygen-free copper pipe |
| CN116262270A (en) * | 2023-02-03 | 2023-06-16 | 安徽鑫旭新材料有限公司 | Double-station copper bar drawing machine and use method |
-
2019
- 2019-07-25 CN CN201921176594.6U patent/CN210647774U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113732090A (en) * | 2021-08-23 | 2021-12-03 | 江西耐乐铜业有限公司 | Special clamp for drawing process of oxygen-free copper pipe |
| CN113732090B (en) * | 2021-08-23 | 2023-10-03 | 江西耐乐铜业有限公司 | Special fixture for oxygen-free copper tube drawing process |
| CN116262270A (en) * | 2023-02-03 | 2023-06-16 | 安徽鑫旭新材料有限公司 | Double-station copper bar drawing machine and use method |
| CN116262270B (en) * | 2023-02-03 | 2023-12-26 | 安徽鑫旭新材料有限公司 | Double-station copper bar drawing machine and use method |
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