CN218049745U

CN218049745U - Large-arc bending forming die

Info

Publication number: CN218049745U
Application number: CN202220770575.1U
Authority: CN
Inventors: 张昌清; 吴海标; 洪泳江; 陈烨成
Original assignee: Guangzohu Grg Intelligent Technology Co ltd
Current assignee: Guangzhou Information Investment Co ltd
Priority date: 2022-04-02
Filing date: 2022-04-02
Publication date: 2022-12-16
Anticipated expiration: 2032-04-02

Abstract

The utility model discloses a orthodrome forming die that bends, including last mould, lower mould, the bottom surface of going up the mould has first spout, the top surface of lower mould has the second spout, the slip cartridge has a bend on the first spout, on the second spout slip cartridge have with bending head appearance assorted concave position of bending, go up the mould with one side of lower mould corresponds respectively first, second spout are provided with ends the position piece, are used for preventing roll over the bend, bend the concave position and remove, the opposite side corresponds respectively first, second spout slip cartridge has the limiting plate, be used for with roll over the bend, bend the spacing cooperation of concave position, drive through drive arrangement go up the mould and push down work piece on the lower mould makes bending head cooperation the concave position of bending is bent the work piece. The utility model provides a problem of bending of orthodrome, satisfy the processing of bending of different radian work pieces, and easy dismounting, connection are reliable, and production is stable and production efficiency is high.

Description

Large circular arc bending forming die

Technical Field

The utility model relates to a technical field of the mould of bending, in particular to orthodrome forming die that bends.

Background

The machining method of the large circular arc part is as follows: 1) Roll bending, although the method has high processing efficiency, the method can only be applied to workpieces with simpler structures, and workpieces with special structures are difficult to realize; 2) The common bending die is adopted to closely separate the bending by one knife, and the defects are that the processing efficiency is low, and the arc is provided with indentation, so the appearance is not good. If have shapes such as rectangular hole in the orthodrome of part, the long vertical edge of dead length is all pressed to above two kinds of bending methods, and the work piece of the same kind needs multiple radian of bending, in order to satisfy the user demand in process of production, need change repeatedly the mould, the work piece of different radians of bending is satisfied to the lower mould, this mode greatly increased staff's labour, effectively reduce production efficiency, and the arc surface of going up mould or lower mould leads to the surface to take place wearing and tearing easily through long-time work, consequently need whole mould or lower mould to change, thereby greatly increased manufacturing cost.

SUMMERY OF THE UTILITY MODEL

The embodiment of the utility model provides a technical problem that will solve provides a orthodrome forming die that bends, has solved the problem of bending of orthodrome, satisfies the processing of bending of different radian work pieces, and easy dismounting, connection are reliable, and production is stable and production efficiency is high.

In order to achieve the purpose, the utility model discloses a orthodrome bending forming die, including last mould, lower mould, the bottom surface of going up the mould has first spout, the top surface of lower mould has the second spout, the slip cartridge has a bend on the first spout, on the second spout slip the cartridge have with bend head appearance assorted concave position of bending, go up the mould with one side of lower mould corresponds respectively first, second spout are provided with the stopper piece for stopping bend the bend head, bend the concave position and remove, the opposite side corresponds respectively first, second spout slip cartridge has the limiting plate, be used for with bend head, the spacing cooperation of concave position of bending, drive through drive arrangement drive go up the mould and push down work piece on the lower mould makes bend head cooperation the concave position of bending is bent the work piece.

Preferably, roll over the elbow and include circular arc portion, the portion of sliding set up perpendicularly in on the circular arc portion, the inboard face of first spout is provided with a plurality of first card strips, the both sides of the portion of sliding have with a plurality of first draw-in grooves of first card strip slip cartridge.

Preferably, the inner side surface of the second sliding groove is provided with a plurality of second clamping grooves, and two sides of the bending concave position are provided with a plurality of second clamping strips which are slidably inserted into the second clamping grooves.

Preferably, the bottom surface of the upper die is provided with a plurality of third clamping grooves, and the arc part is provided with a plurality of third clamping strips which are inserted into the third clamping grooves in a sliding manner.

Preferably, the bottom surface of the second sliding groove is provided with a plurality of fourth clamping grooves, and the bottom surface of the bent concave position is provided with a plurality of fourth clamping strips which are inserted into the fourth clamping grooves in a sliding mode.

Preferably, a pair of positioning lugs are arranged on the side walls of the upper die and the lower die, positioning grooves are respectively arranged on the positioning lugs, and the end parts of the limiting plates are respectively inserted into the positioning grooves.

Preferably, a first gasket and a second gasket are respectively arranged on two sides of the top surface of the lower die, and adjacent surfaces between the first gasket and the second gasket respectively extend to the edge of the top surface of the bending concave position.

Preferably, the front end face of the upper die is provided with a plug-in groove for plug-in fitting with equipment.

Compared with the prior art, the beneficial effects of the utility model reside in that:

the utility model discloses go up the mould and all adopt dismantled and assembled mode with the concave position of bending, can change the head of bending of different radians of bending, the concave position of bending according to the radian of bending to be applicable to the work piece of processing various different radians, and easy dismounting, the flexible operation has improved dismouting efficiency and work efficiency greatly, reduces the work degree of difficulty.

The two sides of the upper die and the lower die are respectively provided with the stop block and the limiting plate, so that the bend and the bending concave position can be effectively limited in the sliding groove, the upper die and the lower die can work more stably, the quality of a workpiece is improved, the safety of workers is prevented from being influenced by throwing away, and the bend and the bending concave position are reduced to be abraded.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic structural view of the first and second chutes;

FIG. 3 is a schematic structural view of a bend and a bending concave position;

FIG. 4 is a schematic structural view of an upper die;

FIG. 5 is a schematic view showing a structure of a portion A in FIG. 4;

FIG. 6 is a schematic structural view of a lower mold;

FIG. 7 is a schematic view showing a structure of a portion B in FIG. 6;

fig. 8 is a schematic view of bending processing.

Detailed Description

To make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be further described in detail with reference to the accompanying drawings.

Referring to fig. 1 and 2, the large-arc bending forming die comprises an upper die 1 and a lower die 2, wherein a first chute 11 is formed in the bottom surface of the upper die 1, a second chute 21 is formed in the top surface of the lower die 2, a bending head 3 is inserted on the first chute 11 in a sliding manner, and a bending concave position 4 matched with the appearance of the bending head 3 is inserted on the second chute 21 in a sliding manner, so that the bending head 3 and the bending concave position 4 with different bending radians can be replaced according to the bending radians, and therefore, the large-arc bending forming die is suitable for processing workpieces with different radians, a workpiece 7 is placed on the lower die 2, the upper die 1 is driven by a driving device to press down the workpiece on the lower die 2, and the bending head 3 is matched with the bending concave position 4 to bend the workpiece.

Referring to fig. 4-7, one side of the upper die 1 and one side of the lower die 2 are respectively provided with a

stop block

5, 5A corresponding to the first and

second chutes

11, 21, the other side of the upper die 1 and the lower die 2 is respectively provided with a limit plate 6, 6A corresponding to the first and

second chutes

11, 21, respectively, in a sliding and inserting manner, the side walls of the upper die 1 and the lower die 2 are provided with a pair of

positioning bumps

61, 61A, the

positioning bumps

61, 61A are respectively provided with a

positioning groove

62, 62A, the end portions of the limit plates 6, 6A are respectively inserted into the

positioning grooves

62, 62A bending head 3, a bending concave 4 is respectively inserted into the upper die 1 and the lower die 2, the stop block 5 blocks the bending head 3 and one end of the bending concave 4 from continuing to move, and the limit the bending head 3 and the bending concave position 4 to the first chute 11, the second chute 21 of the upper die 1, the lower die 2 through the

limit plates

6, 6A, 5A and a, 5A are matched with the limit plates to limit the bending head 3 and the bending concave position 4 to the first chute 11, the lower die 2, and the bend 3 or the bend 3 and the bend 3 can not easily collide with the lower die 2, thereby preventing the bend 3 from breaking during a safety bend 3 from easily causing a high bend or a bend.

Referring to fig. 3-5, the bending head 3 includes an arc portion 31 and a sliding portion 32, the sliding portion 32 is vertically disposed on the arc portion 31, the inner side of the first sliding groove 11 is provided with a plurality of first clamping strips 111, two sides of the sliding portion 32 are provided with a plurality of first clamping grooves 321 slidably inserted into the first clamping strips 111, so that the bending head 3 is more firmly connected with the first sliding groove 11, the bottom surface of the upper die 1 is provided with a plurality of third clamping grooves 12, the arc portion 31 is provided with a plurality of third clamping strips 311 slidably inserted into the third clamping grooves 12, so that the bending head 3 is more stably connected with the bottom surface of the upper die 1, unstable connection of the bending head is prevented from shaking, and the quality of a workpiece is affected.

Referring to fig. 3, 6 and 7, the inner side surface of the second sliding groove 21 is provided with a plurality of second clamping grooves 211, two sides of the bending concave position 4 are provided with a plurality of second clamping strips 41 which are slidably inserted into the second clamping grooves 211, the bottom surface of the second sliding groove 21 is provided with a plurality of fourth clamping grooves 212, and the bottom surface of the bending concave position 4 is provided with a plurality of fourth clamping strips 42 which are slidably inserted into the fourth clamping grooves 212, so that the connection between the bending concave position 4 and the lower die 2 is firmer, the bending concave position is prevented from shaking due to unstable connection, and the surface wear of a bending head is easily caused.

Referring to fig. 8, it is more preferable that the relation between the arc radius R of the bending head 3 and the arc radius R of the bending recess 4 is R = R + t (t is the thickness of the material of the workpiece 7), and since the parts have springback after bending, the springback is related to the width b of the upper die 1, and when b is determined, the inner angle R 'of the workpiece 7, that is, R = R' -k (k is a coefficient and is determined empirically) is ensured by adjusting the arc radius R of the bending head 3 on the upper die 1 and the arc R of the bending recess 4 on the lower die 2. Therefore, the workpiece can be bent by selecting the corresponding bending elbow and the corresponding bending concave position according to the required bending radian.

Referring to fig. 6, a first gasket 22 and a second gasket 23 are respectively arranged on two sides of the top surface of the lower die 2, adjacent surfaces between the first gasket 22 and the second gasket 23 respectively extend to the edge of the top surface of the bending concave position 4, collision between the bending head 3 and the two sides of the top surface of the bending concave position 4 can be effectively avoided through the first gasket 22 and the second gasket 23, and the bending concave position 4 is damaged and deformed.

Of course, 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 to implement the present invention, which cannot limit the protection scope of the present invention, and all modifications made according to the spirit of the main technical solution of the present invention should be covered within the protection scope of the present invention.

Claims

1. The utility model provides a orthodrome forming die that bends, its characterized in that, includes mould, lower mould, the bottom surface of going up the mould has first spout, the top surface of lower mould has the second spout, the slip cartridge has a bend on the first spout, the slip cartridge have with bend first appearance assorted concave position of bending on the second spout, go up the mould with one side of lower mould corresponds respectively first, second spout is provided with ends the position piece for preventing bend, bend the concave position and remove, and the opposite side corresponds respectively first, second spout slip cartridge has the limiting plate, be used for with bend, the spacing cooperation of concave position of bending, drive through drive arrangement drive go up the mould and push down work piece on the lower mould, make bend first cooperation bend the concave position of bending bend the work piece.

2. The large arc bending and forming die according to claim 1, wherein the bending head comprises an arc portion and a sliding portion, the sliding portion is vertically arranged on the arc portion, a plurality of first clamping strips are arranged on the inner side of the first sliding groove, and a plurality of first clamping grooves which are slidably inserted into the first clamping strips are arranged on two sides of the sliding portion.

3. The orthodrome bending forming die according to claim 1, wherein a plurality of second clamping grooves are formed in the inner side surface of the second sliding groove, and a plurality of second clamping strips which are slidably inserted into the second clamping grooves are arranged on two sides of the bending concave position.

4. The great arc bending forming die according to claim 2, wherein a plurality of third clamping grooves are formed in the bottom surface of the upper die, and a plurality of third clamping strips which are slidably inserted into the third clamping grooves are formed in the arc portion.

5. The great arc bending forming die according to claim 3, wherein a plurality of fourth clamping grooves are formed in the bottom surface of the second sliding groove, and a plurality of fourth clamping strips which are slidably inserted into the fourth clamping grooves are formed in the bottom surface of the bending concave position.

6. The great arc bending forming die according to claim 1, wherein a pair of positioning protrusions are arranged on the side walls of the upper die and the lower die, positioning grooves are respectively arranged on the positioning protrusions, and the end portions of the limiting plates are respectively inserted into the positioning grooves.

7. The large arc bending forming die according to claim 1, wherein a first gasket and a second gasket are respectively arranged on two sides of the top surface of the lower die, and adjacent surfaces between the first gasket and the second gasket respectively extend to the edge of the top surface of the bending concave position.

8. The great arc bending forming die as claimed in claim 1, wherein the front end face of the upper die is provided with an insertion groove for insertion fit with equipment.