CN204867028U - Steel pipe centreless circular port punching die - Google Patents
Steel pipe centreless circular port punching die Download PDFInfo
- Publication number
- CN204867028U CN204867028U CN201520563756.7U CN201520563756U CN204867028U CN 204867028 U CN204867028 U CN 204867028U CN 201520563756 U CN201520563756 U CN 201520563756U CN 204867028 U CN204867028 U CN 204867028U
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- steel pipe
- drift
- upper mold
- mold section
- punching
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Abstract
The utility model discloses a steel pipe centreless circular port punching die, including the upper mold section, the female die, the drift, hydraulic power mechanism one, hydraulic power mechanism two, the drift is connected with the hydraulic power piston rod terminus of mechanism, the piston rod terminus of upper mold section and hydraulic power mechanism no. 1 is connected, the both ends and the supporting seat no. 1 of pneumatic cylinder no. 2 are connected, the upper portion and the supporting seat no. 2 of pneumatic cylinder no. 1 are connected, be equipped with first drift hole with drift matched with in the centre of upper mold section, the centre of female die is equipped with second drift hole with drift matched with, first drift hole, second drift hole cooperation forms the drift hole of drift process, the size in drift hole is greater than by the size of punching a hole, the axis level in drift hole is placed, the upper mold section is equipped with the upper mold section fixed orifices, the female die is equipped with second fixed orifices, the upper mold section fixed orifices, second fixed orifices forms horizontally steel pipe fixed orifices. The utility model discloses simple structure, the smoothness nature of punching a hole on every side is good, subside that it is little to be out of shape, and production efficiency is high, has reduced the operation and maintenance cost.
Description
Technical field
The utility model relates to punching apparatus technical field, particularly relates to a kind of steel pipe centreless circular port perforating die.
Background technology
In prior art when punching to steel tube surface, the modes such as usual employing boring, gas cutting, plasma cutting are carried out, the defect that this mode exists is that production efficiency is low, also the employing die punching had, the defect that this mode exists is, on the one hand mould structure complicated, make, maintenance use cost is high, on the other hand, in order to solve the overweight problem of punching periphery material collapse-deformation, need to apply supporting-core in steel pipe inner chamber, make that structure is more complicated, cost is higher, also have impact on production efficiency, have impact on the popularity of use.
Utility model content
The purpose of this utility model is exactly the problems referred to above existed for solving prior art, provides a kind of steel pipe centreless circular port perforating die; The utility model structure is simple, and punching quality is good, and punching ambient light slip is good, collapse-deformation is little, and production efficiency is high, reduces operation and maintenance cost.
The technical scheme of the utility model technical solution problem is:
A kind of steel pipe centreless circular port perforating die, comprise upper mold section, female die, drift, hydraulic power mechanism one, hydraulic power mechanism two, described drift is connected with the piston-rod end of the hydraulic cylinder two of hydraulic power mechanism two, described upper mold section is connected with the piston-rod end of the hydraulic cylinder one of hydraulic power mechanism one, the two ends of hydraulic cylinder two are connected with supporting seat one, the top of hydraulic cylinder one is connected with supporting seat two, supporting seat one, supporting seat two, female die is connected with fixed station respectively, first bore of the punch matched with drift is provided with in the centre of upper mold section, the centre of female die is provided with second bore of the punch matched with drift, first bore of the punch described, second bore of the punch coordinates the bore of the punch forming drift process, the size of bore of the punch is greater than by punch size, described bore of the punch axis horizontal place, described upper mold section is provided with upper mold section fixing hole, female die is provided with second fixing hole, described upper mold section fixing hole, second fixing hole coordinates with the external cylindrical surface of steel pipe and forms steel pipe fixing hole, the axis of described steel pipe fixing hole is horizontal level.
The full-size of the vertical direction of described steel pipe fixing hole is less than by the external cylindrical surface basic size of punching steel pipe, and the minimum dimension of the horizontal direction of steel pipe fixing hole is greater than by the external cylindrical surface basic size of punching steel pipe.
The inclined plane structure low in the middle of the punching end employing of described drift, both sides are high.
Two inclined plane angle α of described inclined plane structure are 110 ° ~ 130 °.
Described by the closed at both ends of the steel pipe of punching.
The beneficial effects of the utility model:
1. the utility model structure is simple, by the precompression that upper female die is applied vertically downward by hydraulic cylinder, surface is made to produce slight deformation, by treating that the steel tube surface of punching is evenly subject to radial pressure, its surface tension is made to be increased to the shearing force can offsetting drift, thus suppress the distortion of steel pipe when punching is stressed, prove through repeatedly drift test, the caliber of first punching side only has the slight deformation of 1 ~ 3%, sliding without distortion at rear punching sidelight, punching quality is good, punching ambient light slip is good, collapse-deformation is little, production efficiency is high, reduce operation and maintenance cost.
2. the utility model can rush Unilateral-hole, also bilateral through hole can be rushed, be specially adapted to the part punching closed at steel pipe two ends, due to punching after closed at both ends go out be easily blocked in pore, be not easy take out, and after the drift of the inclined plane structure low in the middle of adopting, both sides are high, on the one hand, during punching, drift is contacted with by the steel pipe of punching gradually, structure reduces shearing force and the impulsive force of drift, alleviates the wearing and tearing of drift; The waste material gone out on the other hand there occurs bending distortion, waste material size after distortion is less than by the size of punching, be easy to take out of from by punching, thus avoid the blocking in pore, reduce drift simultaneously, scratched by colliding with of punching and interfere, ensure by the quality of punching steel pipe, extend the service life of punching head simultaneously.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the sectional structure schematic diagram after upper mold section, female die combination;
Fig. 3 is the structural representation after upper mold section, female die and steel pipe combination;
Fig. 4 is the steel-tube construction schematic diagram of closed at both ends;
Fig. 5 is the punch structure schematic diagram of inclined plane structure;
Fig. 6 is the top view of Fig. 5.
Detailed description of the invention
In order to understand the utility model better, explain enforcement of the present utility model in detail below in conjunction with accompanying drawing.
Composition graphs 1 to Fig. 6, a kind of steel pipe centreless circular port perforating die, comprise upper mold section 1, female die 2, drift 3, hydraulic power mechanism one, hydraulic power mechanism two, described drift 3 is connected with piston rod 10 end of the hydraulic cylinder 2 13 of hydraulic power mechanism two, drift 3 is connected so that dismounting with piston rod 10 end by middle contiguous block 9, change, described upper mold section 1 is connected with piston rod 4 end of the hydraulic cylinder 1 of hydraulic power mechanism one, the two ends of hydraulic cylinder 2 13 are connected with supporting seat 1, the top of hydraulic cylinder 1 is connected with supporting seat 26, supporting seat 1, supporting seat 26, female die 2 is connected with fixed station 11 respectively, first bore of the punch 17 matched with drift is provided with in the centre of upper mold section 1, the centre of female die 2 is provided with second bore of the punch 18 matched with drift, first bore of the punch 17 described, second bore of the punch 18 coordinates the bore of the punch 8 forming drift process, the size of bore of the punch 8 is slightly larger than by punching 71 size, described bore of the punch axis horizontal place, described upper mold section 1 is provided with upper mold section fixing hole 19, female die 2 is provided with second fixing hole 20, described upper mold section fixing hole 19, second fixing hole 20 coordinates with the external cylindrical surface of steel pipe 7 and forms steel pipe fixing hole, the axis of described steel pipe fixing hole is horizontal level.
The full-size L1 of the vertical direction of described steel pipe fixing hole is less than by the external cylindrical surface basic size L of punching steel pipe, and the minimum dimension L2 of the horizontal direction of steel pipe fixing hole is greater than by the external cylindrical surface basic size of punching steel pipe.
Inclined plane 14 structure low in the middle of the punching end employing of described drift, both sides are high.
The inclined plane angle α of described inclined plane structure is 110 ° ~ 130 °.
The described two ends 15,16 by the steel pipe of punching are closed.
Operation principle of the present utility model: with at diameter phi 32mm, the hole of the welded still pipe upper punch φ 16mm of the Q235 material of wall thickness 2mm is example, to the steel pipe of punching be needed from by upper mold section fixing hole 19 during punching, in the horizontal steel tube fixing hole coordinated with the external cylindrical surface of steel pipe that second fixing hole 20 is formed, by the precompression that upper upper mold section 1 applies vertically downward by hydraulic cylinder, surface is made to produce slight deformation, by treating that the steel tube surface of punching is evenly subject to radial pressure, its surface tension is made to be increased to the shearing force can offsetting drift, thus suppress the distortion of steel pipe when punching is stressed.Prove through repeatedly drift test, the caliber of first punching side only has the slight deformation of 1 ~ 3%, sliding without distortion at rear punching sidelight.
The utility model can rush Unilateral-hole, also bilateral through hole can be rushed, be specially adapted to the part punching closed at steel pipe two ends, due to punching after closed at both ends go out be easily blocked in pore, be not easy take out, and after the drift of the inclined plane structure high in the middle of adopting, both sides are low, on the one hand, during punching, drift is contacted with by the steel pipe of punching gradually, structure reduces shearing force and the impulsive force of drift, alleviates the wearing and tearing of drift; The waste material gone out on the other hand there occurs bending distortion, waste material size after distortion is less than by the size of punching, be easy to take out of from by punching, thus avoid the blocking in pore, reduce drift simultaneously, scratched by colliding with of punching and interfere, ensure by the quality of punching steel pipe, extend the service life of punching head simultaneously.
By reference to the accompanying drawings the detailed description of the invention of utility model is described although above-mentioned; but the restriction not to the utility model protection domain; on the basis of the technical solution of the utility model, those skilled in the art do not need to pay various amendment or distortion that creative work can make still within protection domain of the present utility model.
Claims (5)
1. a steel pipe centreless circular port perforating die, comprise upper mold section, female die, drift, it is characterized in that, also comprise hydraulic power mechanism one, hydraulic power mechanism two, described drift is connected with the piston-rod end of the hydraulic cylinder two of hydraulic power mechanism two, described upper mold section is connected with the piston-rod end of the hydraulic cylinder one of hydraulic power mechanism one, the two ends of hydraulic cylinder two are connected with supporting seat one, the top of hydraulic cylinder one is connected with supporting seat two, supporting seat one, supporting seat two, female die is connected with fixed station respectively, first bore of the punch matched with drift is provided with in the centre of upper mold section, the centre of female die is provided with second bore of the punch matched with drift, first bore of the punch described, second bore of the punch coordinates the bore of the punch forming drift process, the size of bore of the punch is greater than by punch size, described bore of the punch axis horizontal place, described upper mold section is provided with upper mold section fixing hole, female die is provided with second fixing hole, described upper mold section fixing hole, second fixing hole coordinates with the external cylindrical surface of steel pipe and forms steel pipe fixing hole, the axis of described steel pipe fixing hole is horizontal level.
2. steel pipe centreless circular port perforating die as claimed in claim 1, it is characterized in that, the full-size of the vertical direction of described steel pipe fixing hole is less than by the external cylindrical surface basic size of punching steel pipe, and the minimum dimension of the horizontal direction of steel pipe fixing hole is greater than by the external cylindrical surface basic size of punching steel pipe.
3. steel pipe centreless circular port perforating die as claimed in claim 1, is characterized in that, the inclined plane structure low in the middle of the punching end employing of described drift, both sides are high.
4. steel pipe centreless circular port perforating die as claimed in claim 3, it is characterized in that, two inclined plane angle α of described inclined plane structure are 110 ° ~ 130 °.
5. steel pipe centreless circular port perforating die as claimed in claim 1, is characterized in that, described by the closed at both ends of the steel pipe of punching.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520563756.7U CN204867028U (en) | 2015-07-30 | 2015-07-30 | Steel pipe centreless circular port punching die |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520563756.7U CN204867028U (en) | 2015-07-30 | 2015-07-30 | Steel pipe centreless circular port punching die |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204867028U true CN204867028U (en) | 2015-12-16 |
Family
ID=54811456
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520563756.7U Expired - Fee Related CN204867028U (en) | 2015-07-30 | 2015-07-30 | Steel pipe centreless circular port punching die |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204867028U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106984703A (en) * | 2017-05-25 | 2017-07-28 | 江苏巨贸医疗设备有限公司 | One kind wheel chair leg tube punching bending automatic forming equipment |
| CN112916692A (en) * | 2021-01-22 | 2021-06-08 | 南京六和普什机械有限公司 | Efficient stamping die |
| CN114226547A (en) * | 2021-11-26 | 2022-03-25 | 浙江长兴和良智能装备有限公司 | Side punching forming method and device for special-shaped pipe and control method of side punching forming device |
-
2015
- 2015-07-30 CN CN201520563756.7U patent/CN204867028U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106984703A (en) * | 2017-05-25 | 2017-07-28 | 江苏巨贸医疗设备有限公司 | One kind wheel chair leg tube punching bending automatic forming equipment |
| CN106984703B (en) * | 2017-05-25 | 2019-03-22 | 江苏巨贸康万家医疗设备有限公司 | A kind of wheel chair leg tube punching bending automatic forming equipment |
| CN112916692A (en) * | 2021-01-22 | 2021-06-08 | 南京六和普什机械有限公司 | Efficient stamping die |
| CN114226547A (en) * | 2021-11-26 | 2022-03-25 | 浙江长兴和良智能装备有限公司 | Side punching forming method and device for special-shaped pipe and control method of side punching forming device |
| CN114226547B (en) * | 2021-11-26 | 2023-06-06 | 浙江长兴和良智能装备有限公司 | Side punching forming method, side punching forming device and control method of special-shaped pipe |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151216 Termination date: 20170730 |