CN209969280U - Novel bending knife - Google Patents
Novel bending knife Download PDFInfo
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- CN209969280U CN209969280U CN201920648782.8U CN201920648782U CN209969280U CN 209969280 U CN209969280 U CN 209969280U CN 201920648782 U CN201920648782 U CN 201920648782U CN 209969280 U CN209969280 U CN 209969280U
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- cutter
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Abstract
The utility model relates to a novel bending knife, which comprises a knife body and a knife holder matched with the knife body, wherein the bottom end of the knife body is provided with a knife tip, the knife tip comprises a first straight edge and a second straight edge forming a 90-degree break angle with the first straight edge, and the first straight edge and the second straight edge are in direct connection transition through an arc surface; a rectangular groove is formed in the middle of the upper surface of the cutter holder, oblique edges extend upwards from two sides of a notch of the groove in an inclined mode respectively, a perpendicular bisector of the groove is overlapped with a perpendicular center line of the arc surface, and the first straight edge and the second straight edge are parallel to the oblique edges on the two sides respectively. The utility model discloses use the preparation of common mould steel, through the design to the cutter size, satisfied the dimensional requirement of bending of sewage case lug.
Description
Technical Field
The utility model belongs to the technical field of the cutter device technique and specifically relates to a novel bending knife.
Background
The existing bending cutter is used for connecting a vehicle body and a water tank when processing workpieces with special structures, such as a sewage tank lifting lug in a high-speed rail project, the bending depth is large, and when a conventional cutter is used for bending, a cutter collision phenomenon exists between the cutter and the lifting lug, so that the machining size cannot meet the drawing requirements, and the service life of the cutter is influenced.
SUMMERY OF THE UTILITY MODEL
The applicant provides a novel bending cutter with a reasonable structure aiming at the defects in the prior art, so that the problem of cutter collision caused by overlarge bending depth is solved.
The utility model discloses the technical scheme who adopts as follows:
a novel bending knife comprises a knife body and a knife holder matched with the knife body, wherein the bottom end of the knife body is provided with a knife tip, the knife tip comprises a first straight edge and a second straight edge forming a 90-degree break angle with the first straight edge, and the first straight edge and the second straight edge are in direct connection transition through an arc surface; a rectangular groove is formed in the middle of the upper surface of the cutter holder, oblique edges extend upwards from two sides of a notch of the groove in an inclined mode respectively, a perpendicular bisector of the groove is overlapped with a perpendicular center line of the arc surface, and the first straight edge and the second straight edge are parallel to the oblique edges on the two sides respectively.
The further technical scheme is as follows:
the upper portion of the top end of the cutter body is provided with a connecting key connected with the bending machine body, the middle portion of one side of the cutter body forms an inwards concave cambered surface, and the lower end of the inwards concave cambered surface is connected with the second straight edge through a third straight edge which inclines downwards.
The radius of the concave cambered surface is 10 mm.
The length of the first straight edge is 80-82mm, the length of the second straight edge is 10-12mm, and the length of the third straight edge is 90-92 mm.
The depth of the groove is 8-10mm, and the width is 14-16 mm.
The cutter body is made of abrasive tool steel.
The utility model has the advantages as follows:
the utility model discloses compact structure, reasonable, convenient operation can install on ordinary bender, makes the cutter push down through the bender to make the work piece shaping of bending.
The utility model discloses an indent cambered surface forms the breach in cutter body middle part one side, and the one side of work piece perk hits with the cutter when avoiding bending, dodges the motion that the work piece produced when bending simultaneously.
The utility model discloses cutter body and blade holder cooperation are particularly useful for processing the great panel of the degree of depth of bending, have optimized the structure size of cutter body, wherein the design of knife tip effectively avoided bending the time because of what the degree of depth of bending leads to too big hits the sword.
Drawings
Fig. 1 is a schematic perspective view of the present invention.
Fig. 2 is a schematic view of the working state of the present invention.
Wherein: 1. a cutter body; 2. a workpiece to be processed; 3. a tool apron; 11. a connecting bond; 12. an inner concave cambered surface; 13. a third straight side; 14. a first straight side; 15. a circular arc surface; 16. a second straight side; 31. a bevel edge; 32. a groove; 33. a perpendicular bisector.
Detailed Description
The following describes embodiments of the present invention with reference to the drawings.
As shown in fig. 1, the novel bending knife of the present embodiment includes a knife body 1 and a knife seat 3 matched with the knife body 1, wherein a knife tip is provided at the bottom end of the knife body 1, the knife tip includes a first straight edge 14 and a second straight edge 16 forming a 90-degree break angle with the first straight edge 14, and the first straight edge 14 and the second straight edge 16 are in direct contact with each other via an arc surface 15; the middle part of the upper surface of the tool apron 3 is provided with a rectangular groove 32, two sides of a notch of the groove 32 extend obliquely upwards to form inclined edges 31 respectively, a perpendicular bisector 33 of the groove 32 is superposed with a perpendicular center line of the arc surface 15, and the first straight edge 14 and the second straight edge 16 are parallel to the inclined edges 31 at two sides respectively.
The upper part of the top end of the cutter body 1 is provided with a connecting key 11 connected with the bending machine body, the middle part of one side of the cutter body 1 is provided with an inner concave cambered surface 12, and the lower end of the inner concave cambered surface 12 is connected with a second straight edge 16 through a third straight edge 13 which inclines downwards.
The radius of the concave cambered surface 12 is 10 mm.
The length of the first straight edge 14 is 80-82mm, the length of the second straight edge 16 is 10-12mm, and the length of the third straight edge 13 is 90-92 mm.
The depth of the groove 32 is 8-10mm, and the width is 14-16 mm. The cutter body 1 is made of abrasive tool steel.
As shown in fig. 2, the utility model discloses when using in the implementation, install cutter body 1 on the bender through the connecting key 11 keyway of upper end and compress tightly, operate the bender and make cutter body 1 whereabouts, the pressure through the bender will be to the shaping of bending of processing work piece 2 (sewage case lug).
The above description is for the purpose of explanation and not limitation of the invention, which is defined in the claims, and any modifications may be made within the scope of the invention.
Claims (6)
1. The utility model provides a novel bending knife, includes cutter body (1), with cutter body (1) complex blade holder (3), its characterized in that: the bottom end of the cutter body (1) is provided with a cutter point, the cutter point comprises a first straight edge (14) and a second straight edge (16) forming a 90-degree folding angle with the first straight edge (14), and the first straight edge (14) and the second straight edge (16) are in direct connection transition through an arc surface (15); a rectangular groove (32) is formed in the middle of the upper surface of the tool apron (3), oblique edges (31) extend upwards from two sides of a notch of the groove (32) in an inclined mode respectively, a perpendicular bisector (33) of the groove (32) coincides with a central perpendicular line of the arc surface (15), and the first straight edge (14) and the second straight edge (16) are parallel to the oblique edges (31) on the two sides respectively.
2. The novel bending blade of claim 1, wherein: the upper portion of the top end of the cutter body (1) is provided with a connecting key (11) connected with the bending machine body, the middle portion of one side of the cutter body (1) forms an inner concave cambered surface (12), and the lower end of the inner concave cambered surface (12) is connected with a second straight edge (16) through a third straight edge (13) which inclines downwards.
3. The novel bending blade of claim 2, wherein: the radius of the concave cambered surface (12) is 10 mm.
4. The novel bending blade of claim 1, wherein: the length of the first straight edge (14) is 80-82mm, the length of the second straight edge (16) is 10-12mm, and the length of the third straight edge (13) is 90-92 mm.
5. The novel bending blade of claim 1, wherein: the depth of the groove (32) is 8-10mm, and the width is 14-16 mm.
6. The novel bending blade of claim 1, wherein: the cutter body (1) is made of abrasive tool steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920648782.8U CN209969280U (en) | 2019-05-07 | 2019-05-07 | Novel bending knife |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920648782.8U CN209969280U (en) | 2019-05-07 | 2019-05-07 | Novel bending knife |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209969280U true CN209969280U (en) | 2020-01-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920648782.8U Active CN209969280U (en) | 2019-05-07 | 2019-05-07 | Novel bending knife |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209969280U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113523032A (en) * | 2021-07-15 | 2021-10-22 | 广东宏石激光技术股份有限公司 | Asymmetric cutter module and plate bending device |
-
2019
- 2019-05-07 CN CN201920648782.8U patent/CN209969280U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113523032A (en) * | 2021-07-15 | 2021-10-22 | 广东宏石激光技术股份有限公司 | Asymmetric cutter module and plate bending device |
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