CN110883186A - Angle cutting die capable of adjusting angle cutting angle - Google Patents
Angle cutting die capable of adjusting angle cutting angle Download PDFInfo
- Publication number
- CN110883186A CN110883186A CN201811051308.3A CN201811051308A CN110883186A CN 110883186 A CN110883186 A CN 110883186A CN 201811051308 A CN201811051308 A CN 201811051308A CN 110883186 A CN110883186 A CN 110883186A
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- China
- Prior art keywords
- die
- corner cutting
- punching
- angle
- base
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D28/00—Shaping by press-cutting; Perforating
- B21D28/02—Punching blanks or articles with or without obtaining scrap; Notching
- B21D28/14—Dies
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D28/00—Shaping by press-cutting; Perforating
- B21D28/24—Perforating, i.e. punching holes
- B21D28/34—Perforating tools; Die holders
Abstract
The invention relates to a corner cutting die capable of adjusting a corner cutting angle. The invention relates to a corner cutting die capable of adjusting a corner cutting angle, which comprises a corner cutting upper die, a base, a guide rod, a corner cutting lower die, a rotary table, a corner cutting tool, a fixing plate, a punching tool and a punching lower die; the base is positioned right below the upper corner cutting die and is connected with the upper corner cutting die through the guide column; a corner cutting lower die is arranged above the base; the turntable is of a circular ring structure and is positioned at the bottom of the upper corner cutting die, and the lower end of the turntable is connected with a corner cutting tool; the fixed plate is fixed in the middle of the rotary table, and a punching cutter is arranged at the lower end of the fixed plate. The base is provided with a lower punching die. The angle cutting die capable of adjusting the angle cutting angle has the advantages of adjusting the angle cutting angle and simultaneously performing two working procedures of angle cutting and punching.
Description
Technical Field
The invention relates to the field of dies, in particular to a corner cutting die capable of adjusting a corner cutting angle.
Background
A stamping die is a special technological device for processing materials (metal or nonmetal) into parts (or semi-finished products). In which stamping is a press working method in which a material is pressed at room temperature by a die mounted on a press to be separated or plastically deformed, thereby obtaining a desired part.
The corner cut and hole punch die generally includes an upper die and a lower die disposed therebelow. And a cutter is arranged at the bottom end of the upper die. When the mould is used, the bed charge is placed on the lower mould, and the upper mould drives the cutter to move downwards to carry out corner cutting and punching treatment on the bed charge.
However, the conventional corner cutting die cannot conveniently adjust the corner cutting angle, and the position of the backing material needs to be adjusted slightly, but the quality and the integrity of the backing material are easily affected by moving the position of the backing material in the production process.
In addition, the existing die usually carries out the two procedures of corner cutting and punching separately, so that the operation equipment is more, the production line is long, the labor intensity is increased, the production efficiency is reduced, and the production cost is increased. In order to solve the above technical problems and improve the product quality and market competitiveness, processing enterprises tend to develop a mold that combines the above processes to complete at one time. But the structural design of the existing corner cutting and punching die is not reasonable enough, especially the processing quality of two procedures can not be met at the same time, the qualification rate of processed products is low, and the production efficiency is reduced, thereby indirectly increasing the production investment capital cost of enterprises, and simultaneously, the unreasonable design of the corner cutting and punching die directly leads to the shortening of the service life of the die.
Disclosure of Invention
Accordingly, an object of the present invention is to provide a chamfering die capable of adjusting a chamfering angle, which has advantages of adjusting a chamfering angle and simultaneously performing two processes of chamfering and punching.
A corner cutting die capable of adjusting a corner cutting angle comprises an upper corner cutting die, a base, a guide rod, a lower corner cutting die, a rotary table, a corner cutting tool, a fixing plate, a punching tool and a lower punching die; the base is positioned right below the upper corner cutting die and is connected with the upper corner cutting die through the guide column; a corner cutting lower die is arranged above the base;
the turntable is of a circular ring structure and is positioned at the bottom of the upper corner cutting die, and the lower end of the turntable is connected with a corner cutting tool; the fixed plate is fixed in the middle of the rotary table, and a punching cutter is arranged at the lower end of the fixed plate.
The base is provided with a lower punching die; the punching lower die comprises a lower oil cylinder, a lower push rod and a supporting plate; the lower oil cylinder is positioned below the base; the lower push rod connects the upper output end of the lower oil cylinder with the support plate.
Compared with the prior art, the corner cutting die capable of adjusting the corner cutting angle can adjust the corner cutting angle, simultaneously perform two procedures of corner cutting and punching on one set of die, independently perform corner cutting support by using the lower corner cutting die, and independently perform punching support by using the supporting plate, so that the processing quality of the two procedures is ensured, and the processing quality and the production efficiency of enterprises are improved.
Furthermore, the device also comprises an upper oil cylinder and an upper push plate; the upper oil cylinder is arranged above the upper corner cutting die, and the lower output end of the upper oil cylinder is connected with the upper push plate; the upper push plate is embedded into the upper corner cutting die, and the lower end of the upper push plate is movably connected with the fixing plate; the fixed plate is movably connected with the rotary disc. The device realizes independent debugging and independent operation of two procedures of corner cutting and punching on one set of die.
Further, the turntable is driven by a motor to rotate; the motor is controlled by a button arranged on the surface of the upper die of the chamfer. The device realizes the automatic angle conversion of the corner cutting tool.
Furthermore, the base is provided with a support frame; the support frame is connected with the bottom of the lower oil cylinder. The device can support the lower oil cylinder and ensure the stability of the working output of the lower oil cylinder.
Further, the support frame is provided with a groove for covering the corner cutting lower die. The waste material that produces when this structure can punch a hole the mould collects, convenient clearance.
Furthermore, the corner cutting lower die is provided with a blanking channel, so that waste materials generated when the punching die punches the holes can be discharged through the blanking channel, and the surface of the lower die is prevented from being remained.
Further, the punching cutters are multiple; the blanking channels correspond to the action ranges of the punching cutters respectively, and waste materials generated by punching are discharged completely.
Further, the device also comprises a fastening nut; the angle cutting tool is in threaded connection with the angle cutting upper die and is provided with threads matched with the threads of the fastening nut, so that the angle cutting tool can be detached and the angle can be adjusted; meanwhile, the corner cutting tool is tightly jacked on the corner cutting upper die through a fastening nut, and the connection strength of the corner cutting tool and the corner cutting upper die is guaranteed.
Further, the corner cutting tools are multiple, so that the bottom material can be subjected to multiple corner cutting at the same time.
Furthermore, a corner cutting blanking groove is arranged above the base; the corner cutting blanking grooves are at least two, cover the action range of the corner cutting tool and are used for recycling waste materials generated when the corner cutting tool carries out corner cutting treatment.
For a better understanding and practice, the invention is described in detail below with reference to the accompanying drawings.
Drawings
FIG. 1 is a schematic view of a rotating device of a cutting die capable of adjusting a cutting angle according to the present invention;
fig. 2 is a schematic structural view of a corner cutting die capable of adjusting a corner cutting angle according to the present invention.
1. Cutting a corner upper die; 11. a corner cutting tool; 111. fixing a nut; 12. a turntable; 2. cutting corners of the lower die; 3. a base; 31; a support frame; 32. a corner cutting blanking groove; 4. a guide bar; 51. a fixing plate; 52. a punching cutter; 53. feeding an oil cylinder; 54. a push plate is arranged; 61. a lower oil cylinder; 62. a lower push rod; 63. a support plate; A. a blanking channel.
Detailed Description
Referring to fig. 1 and 2, a corner cutting die capable of adjusting a corner cutting angle includes an upper corner cutting die 1, a lower corner cutting die 2, a base 3, a guide rod 4, a corner cutting tool 11, a turntable 12, a fixing plate 51, a punching tool 52 and a lower punching die. The base 3 is positioned under the upper corner cutting die 1 and is connected with the upper corner cutting die 1 through the guide post 4. The guide post 4 comprises a guide sleeve connected with the upper corner cutting die 1 and a guide post connected with the base 3. A lower corner cutting die is arranged above the base 3.
The rotary table 12 is of a circular ring structure and is positioned at the bottom of the upper corner cutting die 1, and the lower end of the rotary table is connected with a corner cutting tool 11. The fixed plate 51 is fixed to the middle of the turntable 12, and a punching cutter 52 is provided at the lower end thereof.
The base 3 is provided with a lower punching die. The punching lower die comprises a lower oil cylinder 61, a lower push rod 62 and a supporting plate 63. The lower cylinder 61 is located below the base 3. The lower push rod 62 connects the upper output end of the lower cylinder 61 to the support plate 63. The upper surface of the supporting plate 63 is horizontal for supporting the bed material by punching.
In order to realize the independent adjustment and independent operation of the two processes of chamfering and punching on a set of die, the die also preferably comprises an upper oil cylinder 53 and an upper push plate 54. The upper oil cylinder 53 is arranged above the upper corner cutting die 1, and the lower output end of the upper oil cylinder is connected with the upper push plate 54. The upper push plate 54 is embedded in the upper chamfer die 1, and the lower end of the upper push plate is movably connected with the fixed plate 51. The fixed plate 51 is movably connected with the rotary disc 12. The push-up plate 54 may act on the fixed plate 51 to move the fixed plate 51 downward.
To realize the automatic angle change of the chamfering tool, the turntable 12 is preferably driven by a motor, which is controlled by a button arranged on the surface of the upper chamfering die 1. It is further preferred that the surface of the turntable 12 is provided with graduation marks for fine adjustment of the angle.
In order to support the lower oil cylinder 61 and ensure the stability of the work output of the lower oil cylinder 61, the base 3 is preferably provided with a support frame 31. The support frame 31 is fixed to the legs of the base 3 and is connected to the bottom of the lower cylinder 61. Further preferably, in order to collect waste generated when the punching die is punched, the waste is convenient to clean, and a groove covering the corner cut lower die is formed on the upper surface of the support frame 31.
In order to discharge waste generated during punching of the punching die through the blanking channel and avoid residue on the surface of the lower die, the corner cutting lower die 2 is provided with a blanking channel A. Further preferably, there are a plurality of punching cutters 52, and the blanking channels a correspond to the action ranges of the punching cutters 52, respectively, so as to ensure that the waste generated by punching is completely discharged.
In order to make the chamfering tool detachable and adjustable in angle, it is preferable that the chamfering tool 11 is screwed with the upper chamfering die 1. Further preferably, the chamfering tool 11 is also provided with a fastening nut 111. The angle cutting tool 11 is provided with a thread matched with the thread of the fastening nut 111, so that the angle cutting tool 11 can be tightly pressed against the angle cutting upper die 1 by the fastening nut 111, and the connection strength of the angle cutting tool 11 and the angle cutting upper die 111 is ensured. It is further preferable that the chamfering tool 11 is plural, so that the chamfering of the bed material can be performed at plural places at the same time.
In order to recover the waste generated during the corner cutting process of the corner cutting tool 11, a corner cutting chute 32 is preferably provided above the base 3. It is further preferred that there are at least two corner cutting chutes 32, covering the range of action of the corner cutting tool, to ensure complete collection of corner cutting waste.
The working principle is as follows:
when the device is used, if only corner cutting is needed, whether the end point of the punching cutter 52 is higher than the end point of the corner cutting cutter 11 or not needs to be checked, then the turntable 12 is rotated to fix the corner cutting cutter 11 to a set angle, then a backing material is placed on a supporting surface at the top of the lower corner cutting die 2, then the upper corner cutting die 1 is controlled to move downwards, and the corner cutting cutter 11 is driven to perform corner cutting on the backing material.
If only punching is needed, the bed material is firstly put on the supporting surface at the top of the lower chamfering die 2, then the lower oil cylinder 61 is controlled to move upwards, and the lower push rod 62 is driven to push the supporting plate 63 to the bed material for punching and supporting. After the supporting plate 63 travels to the stroke limit position, the lower oil cylinder 61 maintains pressure, and the supporting force for the product is kept. After the pressure maintaining is started, the upper oil cylinder 53 is controlled to move downwards, the upper push plate 54 is driven to extrude the fixing plate 51 to push the punching cutter 52 downwards, and punching processing is carried out on the bottom material.
If the chamfering and punching are required to be carried out simultaneously, the backing material is firstly put into a supporting surface at the top of the chamfering lower die 2, then the rotary table 12 is rotated, the chamfering cutter 11 is fixed to a set angle, then the lower oil cylinder 61 is controlled to move upwards, and the lower push rod 62 is driven to push the supporting plate 63 to the backing material for punching and supporting. After the supporting plate 63 travels to the stroke limit position, the lower oil cylinder 61 maintains pressure, and the supporting force for the product is kept. After the pressure maintaining is started, the upper oil cylinder 53 is controlled to move downwards, the upper push plate 54 is driven to extrude the fixing plate, and the punching cutter 52 is pushed downwards until the end point of the punching cutter is positioned at the same horizontal line with the corner cutting die 11. And then, controlling the upper chamfering die 1 to move downwards, and simultaneously driving the chamfering cutter 11 and the punching cutter 52 to move downwards to perform chamfering and punching treatment on the base material.
When the device is reset, the upper oil cylinder 53 is retreated firstly, then the upper corner cutting die 1 is retreated, finally the lower oil cylinder 61 is retreated, the whole process is completed, and the product is taken out, so that the backing material can be prevented from rebounding due to deformation as much as possible.
Compared with the prior art, the corner cutting die capable of adjusting the corner cutting angle can adjust the corner cutting angle, simultaneously perform two procedures of corner cutting and punching on one set of die, independently perform corner cutting support by using the lower corner cutting die, and independently perform punching support by using the supporting plate, so that the processing quality of the two procedures is ensured, and the processing quality and the production efficiency of enterprises are improved.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention. In the description of the present invention, "a plurality" means two or more, and "plural" means two or more, unless otherwise specified.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention.
Claims (10)
1. The utility model provides an adjustable corner cut angle's corner cut mould which characterized in that: the corner cutting device comprises an upper corner cutting die, a base, a guide rod, a lower corner cutting die, a turntable, a corner cutting tool, a fixing plate, a punching tool and a lower punching die; the base is positioned right below the upper corner cutting die and is connected with the upper corner cutting die through the guide column; a corner cutting lower die is arranged above the base;
the turntable is of a circular ring structure and is positioned at the bottom of the upper corner cutting die, and the lower end of the turntable is connected with a corner cutting tool; the fixed plate is fixed in the middle of the rotary table, and a punching cutter is arranged at the lower end of the fixed plate.
The base is provided with a lower punching die; the punching lower die comprises a lower oil cylinder, a lower push rod and a supporting plate; the lower oil cylinder is positioned below the base; the lower push rod connects the upper output end of the lower oil cylinder with the support plate.
2. The chamfer angle adjustable chamfer die of claim 1, wherein: the device also comprises an upper oil cylinder and an upper push plate; the upper oil cylinder is arranged above the upper corner cutting die, and the lower output end of the upper oil cylinder is connected with the upper push plate; the upper push plate is embedded into the upper corner cutting die, and the lower end of the upper push plate is movably connected with the fixing plate; the fixed plate is movably connected with the rotary disc.
3. The chamfer angle adjustable chamfer die of claim 1, wherein: the turntable is driven by a motor to rotate; the motor is controlled by a button arranged on the surface of the upper die of the chamfer.
4. The chamfer angle adjustable chamfer die of claim 1, wherein: the base is provided with a support frame; the support frame is connected with the bottom of the lower oil cylinder.
5. The chamfer angle adjustable chamfer die of claim 4, wherein: the supporting frame is provided with a groove for covering the lower corner cutting die.
6. The chamfer angle adjustable chamfer die of claim 1, wherein: the corner cutting lower die is provided with a blanking channel.
7. The chamfer angle adjustable chamfer die of claim 6, wherein: the number of the punching cutters is multiple; the blanking channels correspond to the action ranges of the punching cutters respectively.
8. The tool position adjustable device according to claim 1, wherein: the device also comprises a fastening nut; the corner cutting tool is in threaded connection with the corner cutting upper die and is provided with threads matched with the threads of the fastening nut.
9. The tool position adjustable device according to claim 8, wherein: the corner cutting tools are multiple.
10. The tool position adjustable device according to claim 9, wherein: a corner cutting blanking groove is arranged above the base; the number of the corner cutting blanking grooves is at least two, and the corner cutting blanking grooves cover the action range of the corner cutting tool.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811051308.3A CN110883186A (en) | 2018-09-10 | 2018-09-10 | Angle cutting die capable of adjusting angle cutting angle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811051308.3A CN110883186A (en) | 2018-09-10 | 2018-09-10 | Angle cutting die capable of adjusting angle cutting angle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110883186A true CN110883186A (en) | 2020-03-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811051308.3A Pending CN110883186A (en) | 2018-09-10 | 2018-09-10 | Angle cutting die capable of adjusting angle cutting angle |
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| Country | Link |
|---|---|
| CN (1) | CN110883186A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112045017A (en) * | 2020-09-01 | 2020-12-08 | 冀中能源井陉矿业集团元氏矿业有限公司 | Corrugated steel plate manufacturing method |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2220876A (en) * | 1988-04-25 | 1990-01-24 | Pullmax Ab | Tool holder for punching tools |
| AU5882100A (en) * | 1999-06-26 | 2001-01-31 | Mate Precision Tooling Inc. | Tool system for metal-cutting machining of sheetlike workpieces |
| CN2920493Y (en) * | 2006-06-12 | 2007-07-11 | 济南兴田阳光数控机械有限公司 | Hydraulic angle steel angle cutting machine |
| US20090211326A1 (en) * | 2006-10-18 | 2009-08-27 | Trumpf Werkzeugmaschinen Gmbh + Co. Kg | Reorientable rotatable processing tool |
| CN103071721A (en) * | 2013-01-14 | 2013-05-01 | 山西惠丰机械工业有限公司 | Reciprocating fine blanking die |
| CN203556773U (en) * | 2013-11-15 | 2014-04-23 | 武汉华夏精冲技术有限公司 | Fine blanking press die protecting device based on pressure control |
| CN107344213A (en) * | 2017-07-13 | 2017-11-14 | 苏州市高宏电子有限公司 | The punching cutting all-in-one machine of fin |
| CN207105105U (en) * | 2017-06-07 | 2018-03-16 | 无锡朴业橡塑有限公司 | A kind of rubber edge-cutting and hole-punching mould |
| CN108213192A (en) * | 2018-01-19 | 2018-06-29 | 江苏协诚科技发展有限公司 | A kind of full-automatic turnover panel fluting corner cut punching system |
-
2018
- 2018-09-10 CN CN201811051308.3A patent/CN110883186A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2220876A (en) * | 1988-04-25 | 1990-01-24 | Pullmax Ab | Tool holder for punching tools |
| AU5882100A (en) * | 1999-06-26 | 2001-01-31 | Mate Precision Tooling Inc. | Tool system for metal-cutting machining of sheetlike workpieces |
| CN2920493Y (en) * | 2006-06-12 | 2007-07-11 | 济南兴田阳光数控机械有限公司 | Hydraulic angle steel angle cutting machine |
| US20090211326A1 (en) * | 2006-10-18 | 2009-08-27 | Trumpf Werkzeugmaschinen Gmbh + Co. Kg | Reorientable rotatable processing tool |
| CN103071721A (en) * | 2013-01-14 | 2013-05-01 | 山西惠丰机械工业有限公司 | Reciprocating fine blanking die |
| CN203556773U (en) * | 2013-11-15 | 2014-04-23 | 武汉华夏精冲技术有限公司 | Fine blanking press die protecting device based on pressure control |
| CN207105105U (en) * | 2017-06-07 | 2018-03-16 | 无锡朴业橡塑有限公司 | A kind of rubber edge-cutting and hole-punching mould |
| CN107344213A (en) * | 2017-07-13 | 2017-11-14 | 苏州市高宏电子有限公司 | The punching cutting all-in-one machine of fin |
| CN108213192A (en) * | 2018-01-19 | 2018-06-29 | 江苏协诚科技发展有限公司 | A kind of full-automatic turnover panel fluting corner cut punching system |
Non-Patent Citations (2)
| Title |
|---|
| 京玉海等: "《机械制造基础》", 31 July 2018, 重庆大学出版社 * |
| 钟翔山: "《冲模及冲压技术实用手册》", 31 January 2015, 金盾出版社 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112045017A (en) * | 2020-09-01 | 2020-12-08 | 冀中能源井陉矿业集团元氏矿业有限公司 | Corrugated steel plate manufacturing method |
| CN112045017B (en) * | 2020-09-01 | 2022-05-20 | 冀中能源井陉矿业集团元氏矿业有限公司 | Corrugated steel plate manufacturing method |
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Application publication date: 20200317 |
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