CN218555225U

CN218555225U - Bending die with R-angle

Info

Publication number: CN218555225U
Application number: CN202222553845.6U
Authority: CN
Inventors: 季刚
Original assignee: Jiangsu Gihsinchen Precision Industry Co ltd
Current assignee: Jiangsu Gihsinchen Precision Industry Co ltd
Priority date: 2022-09-26
Filing date: 2022-09-26
Publication date: 2023-03-03
Anticipated expiration: 2032-09-26

Abstract

The utility model discloses a mould of bending area R angle, include: the upper die mechanism comprises a bending block, the bending block is arranged at the edge position close to the upper die mechanism, and an inward concave R angle is arranged on the bending block; the lower die mechanism comprises a lower die pressing plate, the lower die pressing plate is arranged on one side, close to the upper die mechanism, of the lower die mechanism, a convex R angle is arranged on the lower die pressing plate, and the convex R angle is matched with the concave R angle in position and angle. In the process of extruding and bending the product, one side of the concave R corner fixes the upper surface of the product, the other side extrudes the product to the center of the die, and the product is extruded and shaped through the convex R corner and the concave R corner, so that the product forms an R corner matched with the concave R corner on the bending block in the bending process.

Description

Bending die with R-shaped angle

Technical Field

The utility model relates to a mould, concretely relates to mould of bending of taking R angle.

Background

With the development of science and technology, metal stamping and bending are more and more close to mechanization and automation, metal plate stamping and bending is a metal plastic processing method for stamping a metal plate into various parts on a die by a press, the thickness of the metal plate has great influence on the metal plate stamping and bending, the plate thickness of a general metal plate stamping part is less than 10mm, and the thickness of the part is less than 20 mm. The existing stamping and bending equipment has the advantages that the bent product has a sharp bending angle, so that the appearance is not only influenced, but also a user is easily injured by the sharp bending angle in the subsequent use process.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a mould of bending of area R angle can effectual solution problem in the technical background.

In order to achieve the above purpose, the utility model adopts the technical scheme that: a bending die with an R angle comprises:

the upper die mechanism comprises a bending block, the bending block is arranged at the edge position close to the upper die mechanism, and an inward concave R angle is arranged on the bending block;

the lower die mechanism comprises a lower die pressing plate, the lower die pressing plate is arranged on one side, close to the upper die mechanism, of the lower die mechanism, a convex R angle is arranged on the lower die pressing plate, and the convex R angle is matched with the concave R angle in position and angle.

In the process of extruding and bending the product, one side of the concave R corner fixes the upper surface of the product, the other side extrudes the product towards the center of the die, and the product is extruded and shaped through the convex R corner and the concave R corner, so that the R corner matched with the concave R corner on the bending block is formed in the bending process of the product, the R corner looks beautiful, and the R corner is a circular arc fillet, so that a user cannot be stabbed.

The R angle of the product can be adjusted by adjusting the pressing degree of the pressing mechanism. Namely, the closer the upper die mechanism is to the lower die mechanism, the smaller the R angle of the product can be.

The utility model discloses further set up to: the upper die mechanism further comprises an upper die pressing plate, an upper die plate and a movable assembly, the upper die plate is arranged at a position close to the side edge of the upper die pressing plate, the movable assembly is movably connected with the upper die plate, and under the action of external force, the movable assembly can slide along the lower surface of the upper die plate.

The utility model discloses further set up to: the lower die mechanism further comprises a slotting tool, and a lower die inclined plane is arranged on one side, close to the movable assembly, of the slotting tool; the movable assembly is being close to one side of slotting tool is provided with the mould inclined plane, go up the mould inclined plane with lower mould inclined plane parallel arrangement, when the cope match-plate pattern area go up the mould inclined plane downstream, go up the mould inclined plane with the contact of lower mould inclined plane to the lower mould inclined plane goes up the mould inclined plane and produces the thrust to mould central direction, goes up the mould inclined plane and moves the in-process along lower mould inclined plane to oblique below, drives the piece of bending and inwards is close to mould central point and puts the removal, bends the product.

The utility model discloses further set up to: and wear-resistant pieces are arranged on the surfaces of the upper die inclined plane and the lower die inclined plane. Through the setting of wearing parts, reduce the mould inclined plane and the rate of wear on lower mould inclined plane, the live time of extension mould.

The utility model discloses further set up to: the upper die plate is close to one side of movable assembly is provided with the bar recess, be provided with spring and ejector pad in the bar recess, the one end of spring with the lateral wall butt of bar recess, the other end and ejector pad are connected, ejector pad one end sets up in the bar recess, the other end with movable assembly fixed connection. When the movable assembly moves towards the center of the mold under the action of external force, the push block moves towards the direction close to the spring, the spring is compressed, and when the external force disappears, the movable assembly moves towards the direction far away from the center of the mold under the action of the spring.

The utility model discloses further set up to: one side of the upper template, which is close to the movable assembly, is provided with a strip-shaped sliding groove, a wear-resistant part is arranged in the strip-shaped sliding groove, the movable assembly is provided with a wear-resistant part, and the wear-resistant part on the movable assembly is matched with the wear-resistant part on the upper template in position. Through set up wearing parts on cope match-plate pattern and movable assembly, prevent to reduce the life of mould because mutual friction leads to wearing and tearing between movable assembly and the cope match-plate pattern.

The utility model discloses further set up to: the upper die mechanism comprises an upper die pressing plate, the upper die pressing plate is arranged on one side, close to the upper die mechanism, of the lower die mechanism, when the upper die mechanism and the lower die mechanism are close to each other, the upper die pressing plate and the lower die pressing plate respectively extrude the upper surface and the lower surface of a product, and the product is fixed in the extruding process.

The utility model discloses further set up to: the movable assembly comprises an upper die inclined block, and the upper die inclined block is fixedly connected with the bending block.

The utility model discloses further set up to: the positioning device is characterized by further comprising a positioning assembly and a lower template, wherein the positioning assembly comprises an upper positioning rod and a lower positioning rod, the upper positioning rod is fixedly connected with the upper template, the lower positioning rod is fixedly connected with the lower template, an axial groove is formed in the lower positioning rod, the diameter of the axial groove is larger than or equal to that of the upper positioning rod, and the upper positioning rod is matched with the lower positioning rod in position. When the upper template approaches the lower template, one end of the upper positioning rod is inserted into the axial groove to fix the relative positions of the upper template and the lower template.

The utility model has the advantages that:

1) In the process of extruding and bending the product, one side of the concave R corner fixes the upper surface of the product, the other side extrudes the product to the center of the die, and the product is extruded and shaped through the convex R corner and the concave R corner, so that the product forms an R corner matched with the concave R corner on the bending block in the bending process.

2) The size of product R angle can be adjusted by adjusting the degree of pressing down the mechanism, namely the closer the upper die mechanism is to the lower die mechanism, the smaller the product R angle is.

Drawings

Fig. 1 is a perspective view of a mold according to an embodiment of the present invention;

fig. 2 is a sectional view of a mold according to an embodiment of the present invention;

fig. 3 is a perspective view of a movable assembly according to an embodiment of the present invention;

fig. 4 is a perspective view of the lower template according to an embodiment of the present invention;

fig. 5 is a perspective view of another perspective view of a movable assembly according to an embodiment of the present invention;

fig. 6 is a partial enlarged view of a cross-sectional view of a mold according to an embodiment of the present invention;

fig. 7 is a schematic view illustrating the extrusion of the mold on the product according to an embodiment of the present invention.

In the figure: 1. an upper die mechanism; 11. an upper mold platen; 12. mounting a template; 121. a strip-shaped chute; 122. a strip-shaped groove; 123. a spring; 124. a push block; 2. a lower die mechanism; 21. pressing plates of the lower die; 211. a convex R corner; 22. a lower template; 3. a movable component; 31. an upper die inclined block; 311. an upper die inclined surface; 32. bending the block; 321. an inward concave R angle; 4. inserting a cutter; 41. a lower die inclined plane; 5. a positioning assembly; 51. an upper positioning rod; 52. A lower positioning rod; 6. producing a product; 61. an R angle; 7. a wear resistant part.

Detailed Description

The following detailed description of the preferred embodiments of the present invention will be provided in conjunction with the accompanying drawings, so as to enable those skilled in the art to more easily understand the advantages and features of the present invention, and thereby define the scope of the invention more clearly and clearly.

Referring to fig. 1 and 2, the bending die with an R-angle for bending in this embodiment includes an upper die mechanism 1 and a lower die mechanism 2, a product 6 to be bent is placed between the upper die mechanism 1 and the lower die mechanism 2, and when the upper die mechanism 1 approaches the lower die mechanism 2, the upper die mechanism 1 and the lower die mechanism 2 extrude the product 6 to be bent, so that the product 6 to be bent forms an R-angle 61, where the R-angle is a rounded corner of an arc tangent to two intersecting straight lines.

In some embodiments, the upper die mechanism 1 includes an upper platen 11, and the upper platen 11 is disposed on a side of the upper die mechanism 1 close to the lower die mechanism 2. The lower die mechanism 2 comprises a lower die pressing plate 21, and the lower die pressing plate 21 is arranged on one side, close to the upper die mechanism 1, of the lower die mechanism 2. When the upper die mechanism 1 and the lower die mechanism 2 approach each other, the upper die pressing plate 11 and the lower die pressing plate 21 respectively extrude the upper surface and the lower surface of the product 6, and the product 6 is fixed in the extruding process.

Referring to fig. 2-4, in some embodiments, the upper mold mechanism 1 further includes an upper mold plate 12 and a movable assembly 3, and the upper mold plate 12 is disposed near the side of the upper mold platen 11. The movable assembly 3 is movably connected with the upper template 12, and the movable assembly 3 can slide along the lower surface of the upper template 12 under the action of external force. One side of the upper template 12 close to the movable assembly 3 is provided with a strip-shaped groove 122, a spring 123 and a push block 124 are arranged in the strip-shaped groove 122, one end of the spring 123 is abutted against the side wall of the strip-shaped groove 122, and the other end of the spring is connected with the push block 124. One end of the push block 124 is arranged in the strip-shaped groove 122, and the other end of the push block is fixedly connected with the position of the movable assembly 3 close to the upper template 12. When the movable assembly 3 is subjected to an external force to move towards the center of the mold, the push block 124 moves towards the direction close to the spring 123, the spring 123 is compressed, and when the external force disappears, the movable assembly 3 moves away from the center of the mold under the action of the spring 123.

In some embodiments, a strip-shaped sliding groove 121 is formed in one side of the upper die plate 12 close to the movable assembly 3, a wear-resistant part 7 is arranged in the strip-shaped sliding groove 121, the wear-resistant part 7 is arranged on the movable assembly 3, the positions of the wear-resistant part 7 on the movable assembly 3 and the wear-resistant part 7 on the upper die plate 12 are matched, and by arranging the wear-resistant part 7 on the upper die plate 12 and the movable assembly 3, the movable assembly 3 and the upper die plate 12 are prevented from being worn due to mutual friction, so that the service life of the die is shortened. The movable assembly is arranged at a position close to the side edge of the upper die plate 12, and when the movable assembly 3 moves to the middle position of the die, the movable assembly 3 extrudes the edge of the product 6, so that the edge of the product 6 is bent.

Referring to fig. 5 to 7, in some embodiments, the movable assembly 3 includes a bending block 32 and an upper inclined block 31, the bending block 32 is fixedly connected to the upper inclined block 31, the bending block 32 is disposed on a side of the upper inclined block 31 close to a mold center, the bending block 32 is provided with a concave R corner 321 on a side away from the upper inclined block 31, and an outer convex R corner 211 is disposed on an edge of the lower platen 21, and the outer convex R corner 211 and the concave R corner 321 have the same angle. In the process of extruding and bending the product 6, one side of the concave R corner 321 fixes the upper surface of the product 6, the other side extrudes the product 6 to the center of the die, and the product 6 is extruded and shaped through the convex R corner 211 and the concave R corner 321, so that the product 6 forms an R corner 61 matched with the concave R corner 321 on the oblique block in the bending process. As the bending block is continuously close to the direction of the lower die pressing plate, the R angle 61 of the product is gradually reduced, and finally the R angle 61 with the same number as the concave R angle is formed. In the actual production process, the angle of the R-angle formed in the product 6 is larger than the convex R-angle 211, because the product 6 forms the R-angle after being extruded, and the R-angle of the product 6 has a rebound phenomenon after the extrusion external force disappears. The angle difference between the R angle of the product 6 and the convex R angle 211 is determined by the material of the product 6 and the degree of the R angle. The R angle of the product can be adjusted by adjusting the pressing degree of the pressing mechanism. That is, the closer the upper die mechanism is to the lower die mechanism, the smaller the R angle will be.

In some embodiments, the lower die mechanism 2 includes a lower die plate 22 and a slotting tool 4, the slotting tool 4 is fixedly connected with the lower die plate 22, the slotting tool 4 is arranged outside the movable assembly 3 in the horizontal direction, and a lower die inclined surface 41 is arranged on one side of the slotting tool 4 close to the movable assembly 3; the upper mold inclined block 31 is provided with an upper mold inclined surface 311 on one side close to the slotting tool 4, the upper mold inclined surface 311 and the lower mold inclined surface 41 are arranged in parallel, when the upper mold plate 12 drives the upper mold inclined surface 311 to move downwards, the upper mold inclined surface 311 contacts with the lower mold inclined surface 41, the lower mold inclined surface 41 generates thrust towards the mold center direction towards the upper mold inclined surface 31, and in the process that the upper mold inclined surface 31 moves along the lower mold inclined surface 41 towards the inclined downward direction, the bending block 32 is driven to move inwards to be close to the mold center position, and the product 6 is bent.

In some embodiments, the surfaces of the upper die inclined plane 311 and the lower die inclined plane 41 are provided with the wear-resistant pieces 7, and the wear rate of the upper die inclined plane 311 and the lower die inclined plane 41 is reduced by the arrangement of the wear-resistant pieces 7, so that the service life of the grinding tool is prolonged.

In some embodiments, the positioning device further comprises a positioning assembly 5, the positioning assembly 5 includes an upper positioning rod 51 and a lower positioning rod 52, the upper positioning rod 51 is fixedly connected with the upper template 12, the lower positioning rod 52 is fixedly connected with the lower template 22, an axial groove is provided on the lower positioning rod 52, the diameter of the axial groove is slightly larger than the diameter of the upper positioning rod 51, the positions of the upper positioning rod 51 and the lower positioning rod 52 are matched, when the upper template 12 approaches the lower template 22, one end of the upper positioning rod 51 is inserted into the groove, and the relative positions of the upper template 12 and the lower template 22 are fixed.

The working process is as follows: placing a product 6 on the upper surface of a lower die mechanism 2, moving an upper die mechanism 1 to a direction close to the lower die mechanism under the action of external force, and fixing the relative positions of the upper die mechanism 1 and the lower die mechanism 2 through a positioning assembly 5 in the moving process; along with the approach of the upper die mechanism 1 to the lower die mechanism 2, the movable assembly 3 moves downwards along the lower die inclined surface 41 and towards the direction close to the center of the die, and during the movement, the product 6 is extruded through the bending block 32 and the lower die plate 22, so that a product 66 with an R angle 61 is formed.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.

The above embodiments are only for illustrating the technical concept and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and implement the present invention, so as not to limit the protection scope of the present invention, and all equivalent changes or modifications made according to the spirit of the present invention should be covered in the protection scope of the present invention.

Claims

1. The utility model provides a mould of bending area R angle which characterized in that includes:

the mould pressing mechanism comprises an upper mould mechanism (1), wherein the upper mould mechanism (1) comprises a bending block (32), the bending block (32) is arranged at the edge position close to the upper mould mechanism (1), and an inward concave R corner (321) is arranged on the bending block (32);

lower mould mechanism (2), lower mould mechanism includes lower clamp plate (21), lower clamp plate (21) set up lower mould mechanism (2) are close to one side of last mould mechanism (1), last (21) of lower clamp plate is provided with evagination R angle (211), evagination R angle (211) with indent R angle (321) position, angle looks adaptation.

2. The bending die with the R-angle is characterized in that the upper die mechanism (1) further comprises an upper die pressing plate (11), an upper die plate (12) and a movable assembly (3), the upper die plate (12) is arranged at a position close to the side edge of the upper die pressing plate (11), the movable assembly (3) is movably connected with the upper die plate (12), and the movable assembly (3) can slide along the lower surface of the upper die plate (12) under the action of external force.

3. The bending die with the R-angle is characterized in that the lower die mechanism (2) further comprises a slotting tool (4), and a lower die inclined surface (41) is arranged on one side, close to the movable assembly (3), of the slotting tool (4); the movable assembly is provided with an upper die inclined surface (311) on one side close to the slotting tool (4), and the upper die inclined surface (311) and the lower die inclined surface (41) are arranged in parallel.

4. The bending die with the R angle in the claim 3, characterized in that the surfaces of the upper die inclined surface (311) and the lower die inclined surface (41) are provided with wear-resistant pieces (7).

5. The bending die with the R-shaped corner for the bending strip according to claim 3, wherein a strip-shaped groove (122) is formed in one side, close to the movable assembly (3), of the upper die plate (12), a spring (123) and a pushing block (124) are arranged in the strip-shaped groove (122), one end of the spring (123) is abutted to the side wall of the strip-shaped groove (122), the other end of the spring is connected with the pushing block (124), one end of the pushing block (124) is arranged in the strip-shaped groove (122), and the other end of the pushing block is fixedly connected with the movable assembly (3).

6. The bending die with the R-angle is characterized in that a strip-shaped sliding groove (121) is formed in one side, close to the movable assembly (3), of the upper die plate (12), a wear-resistant part (7) is arranged in the strip-shaped sliding groove (121), the wear-resistant part (7) is arranged on the movable assembly (3), and the positions of the wear-resistant part (7) on the movable assembly and the wear-resistant part (7) on the upper die plate (12) are matched.

7. The bending die with the R-angle is characterized in that the upper die mechanism (1) comprises an upper die pressing plate (11), and the upper die pressing plate (11) is arranged on one side of the upper die mechanism (1) close to the lower die mechanism (2).

8. Bending die with an R-angle according to claim 7, wherein the movable assembly comprises an upper inclined die block (31), and the upper inclined die block (31) is fixedly connected with the bending block (32).

9. The bending die with the bending angle R according to claim 8, further comprising a positioning assembly (5) and a lower template (22), wherein the positioning assembly (5) comprises an upper positioning rod (51) and a lower positioning rod (52), the upper positioning rod (51) is fixedly connected with the upper template (12), the lower positioning rod (52) is fixedly connected with the lower template (22), an axial groove is formed in the lower positioning rod (52), the diameter of the axial groove is larger than or equal to that of the upper positioning rod (51), and the upper positioning rod (51) is matched with the lower positioning rod (52) in position.