CN214976846U - Bending structure of bending die - Google Patents

Bending structure of bending die Download PDF

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Publication number
CN214976846U
CN214976846U CN202023103430.6U CN202023103430U CN214976846U CN 214976846 U CN214976846 U CN 214976846U CN 202023103430 U CN202023103430 U CN 202023103430U CN 214976846 U CN214976846 U CN 214976846U
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China
Prior art keywords
bending
die
positioning block
plate
fixed
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CN202023103430.6U
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Chinese (zh)
Inventor
王占峰
吴勇
朱帆
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CFTC PRECISION (JIA-XING) Ltd
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CFTC PRECISION (JIA-XING) Ltd
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Abstract

The utility model discloses a bending structure of bender, including upper die mechanism and lower die mechanism, upper die mechanism includes the upper die base and takes off the flitch, and lower die mechanism includes die plate and die holder, characterized by: the bending structure comprises a bending component and a positioning component; the bending assembly comprises an upper bending group and a lower bending group which are positioned on two sides of the positioning assembly, the upper bending group and the lower bending group respectively comprise an upper bending die and a lower bending die, the upper bending die is fixed on the upper die base and moves up and down along with the upper die base, and the lower bending die is in up-and-down sliding fit in the female die plate; the positioning assembly comprises an upper positioning block and a lower positioning block, the upper positioning block is fixed on the stripper plate, and the lower positioning block is fixed on the female die plate and forms a pressing position with the upper positioning block for pressing the middle part of the workpiece. The utility model discloses can improve the stability of work piece in-process of bending, can promote the size precision that the work piece was bent again, promote the product percent of pass.

Description

Bending structure of bending die
Technical Field
The utility model relates to a bending device technical field, more specifically relate to a bending structure of bender.
Background
The bending machine, namely a numerical control bending machine, is an automatic bending machine controlled by a program, is used for bending a thin plate, and mainly comprises a bending die mechanism, a lower die mechanism and an upper die mechanism. An upper bending die and a lower bending die in the bending die mechanism are respectively installed in the upper die mechanism and the lower die mechanism, and the upper die mechanism drives the upper bending die to move towards the lower bending die in the lower die mechanism, so that the workpiece is bent.
Fig. 2 illustrates a prior art bending structure for a workpiece, in which a stripper plate in an upper die mechanism and a mother die plate in a lower die mechanism compress and fix a position a of the workpiece, and then bend positions B and C of the workpiece through an upper bender and a lower bender. In the structure, the B position and the C position are positioned on the same side of the A position, so that the B position bending and the C position bending can affect each other when the workpiece is bent, the stability of the workpiece in the bending process is poor, the bending size precision is reduced, and an improved space exists.
SUMMERY OF THE UTILITY MODEL
Not enough to prior art, the utility model provides a bending structure of bender can improve the stability of work piece in-process of bending, can promote the size precision that the work piece was bent again, promotes the product percent of pass.
In order to achieve the above purpose, the utility model provides a following technical scheme:
the utility model provides a bending structure of bender, includes upper die mechanism and lower die mechanism, and upper die mechanism includes the upper die base and takes off the flitch, and lower die mechanism includes die plate and die holder, characterized by: the bending structure comprises a bending component and a positioning component;
the bending assembly comprises an upper bending group and a lower bending group which are positioned on two sides of the positioning assembly, the upper bending group and the lower bending group respectively comprise an upper bending die and a lower bending die, the upper bending die is fixed on the upper die base and moves up and down along with the upper die base, and the lower bending die is in up-and-down sliding fit in the female die plate;
the positioning assembly comprises an upper positioning block and a lower positioning block, the upper positioning block is fixed on the stripper plate, and the lower positioning block is fixed on the female die plate and forms a pressing position with the upper positioning block for pressing the middle part of the workpiece.
Preferably, the center of the female die plate is provided with an embedded groove, the lower positioning block is embedded in the center of the embedded groove, and sliding grooves for the lower bending die to slide up and down are formed in the positions of the embedded groove corresponding to the two sides of the lower positioning block.
Preferably, an assembly groove is formed in the center of the stripper plate, the upper positioning block is fixed to the center of the assembly groove, and an avoidance opening for the upper bending die to pass through is formed in the position, corresponding to the two sides of the upper positioning block, of the assembly groove.
Preferably, the top surface of the lower positioning block is lower than the upper notch of the caulking groove.
Preferably, the corners of the corresponding surfaces of the upper bending die and the lower bending die are arc corners.
The utility model has the advantages that:
1. the middle position of the workpiece is compressed, and then two sides of the compression position are bent, so that the two bending positions of the workpiece are not affected with each other, the stability of the workpiece in the bending process is obviously improved, and the bending precision is improved;
2. in the bending process, the left side of the workpiece is bent downwards, then the right side of the workpiece is bent in a grading mode, and the bending stability and the bending precision are further improved.
Drawings
Fig. 1 is a schematic view of a bending structure of a bending die provided in this embodiment;
fig. 2 is a schematic view of a prior art bender.
Detailed Description
The bending structure of the bending die of the present invention is further described with reference to fig. 1.
A bending structure of a bending die comprises an upper die mechanism 1 and a lower die mechanism 6, wherein the upper die mechanism 1 comprises an upper die base 12 and a stripper plate 11, the stripper plate 11 is connected with the upper die base 12 through a guide column 13, and the stripper plate 11 and the upper die base 12 can move relatively; lower die mechanism 6 includes female template 61 and die holder 62, characterized by: the bending structure comprises a bending assembly and a positioning assembly 4. The bending assembly comprises an upper bending group 3 and a lower bending group 2 which are positioned at two sides of the positioning assembly 4, the upper bending group 3 and the lower bending group 2 both comprise an upper bending die 21/31 and a lower bending die 22/32, the upper bending die 21/31 is fixed on the upper die holder 12 and moves up and down along with the upper die holder 12, and the lower bending die 22/32 is in up-and-down sliding fit in the female die plate 61; the positioning assembly 4 comprises an upper positioning block 42 and a lower positioning block 41, the upper positioning block 42 is fixed on the stripper plate 11, and the lower positioning block 41 is fixed on the mother die plate 61 and forms a pressing position with the upper positioning block 42 for pressing the middle part of the workpiece 5.
During specific work, a workpiece 5 is placed on the female die plate 61, and the middle part of the workpiece 5 is supported on the lower positioning block 41; a force transmission mechanism oil cylinder of the bending die drives the upper die mechanism 1 to move downwards; the stripper plate 11 is firstly contacted with the middle part of the workpiece 5, and the middle part of the workpiece 5 is pressed by a pressing position formed by an upper positioning block 42 and a lower positioning block 41 on the stripper plate 11; an upper die base 12 in the upper die structure drives an upper bending die 21/31 to move downwards continuously, and an upper bending die 21 penetrates through a stripper plate 11 to extrude and bend the left side of the workpiece 5, so that the left side of the workpiece 5 bends downwards; the oil cylinder of the bending die is connected to the lower surface of the lower die base 62, penetrates through the lower die base 62 to be connected with the lower bending die 22/32 and drives the lower bending die 22/32 to move upwards, and the right side of the workpiece 5 is bent upwards. In this embodiment, the bending structure bends the workpiece 5 twice, and the bending positions are located on two sides of the pressing position, so that the bending precision and quality can be effectively improved.
Specifically, the female die plate 61 has a caulking groove at a central position thereof, the lower positioning block 41 is fitted to the central position of the caulking groove, and the caulking groove forms a slide groove for the lower bending die 22/32 to slide up and down at positions corresponding to both sides of the lower positioning block 41. The lower ends of the two lower bending dies 22/32 are connected with an oil cylinder on the lower surface of the lower die holder 62 through a connecting plate, and the oil cylinder drives the lower bending die 22/32 to move up and down.
An assembly groove is formed in the center of the stripper plate 11, the upper positioning block 42 is fixed to the center of the assembly groove in a welding manner, and an avoidance opening through which the upper bending die 21/31 passes is formed in positions of the assembly groove corresponding to two sides of the upper positioning block 42.
The top surface of the lower positioning block 41 is lower than the upper notch of the caulking groove, and the workpiece 5 can be placed into the caulking groove under the structure, so that the workpiece 5 can be conveniently placed and positioned.
The corners of the corresponding surfaces of the upper bending die 21/31 and the lower bending die 22/32 are arc corners 71. The structure can protect the surface of the workpiece 5, and the problem that the surface of the workpiece 5 is scratched is reduced.
Unless otherwise specified, in the present invention, if the terms "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate an orientation or positional relationship based on the orientation or positional relationship shown in the drawings, it is only for convenience of describing the present invention and simplifying the description, rather than to indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore, the terms describing orientation or positional relationship in the present invention are used for illustrative purposes only, and should not be construed as limiting the present patent, specific meanings of the above terms can be understood by those of ordinary skill in the art in light of the specific circumstances in conjunction with the accompanying drawings.
Unless expressly stated or limited otherwise, the terms "disposed," "connected," and "connected" are used broadly and encompass both fixed and removable connections, or integral connections; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
It is above only the utility model discloses a preferred embodiment, the utility model discloses a scope of protection does not only confine above-mentioned embodiment, the all belongs to the utility model discloses a technical scheme under the thinking all belongs to the utility model discloses a scope of protection. It should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims (5)

1. The utility model provides a bending structure of bender, includes upper die mechanism and lower die mechanism, and upper die mechanism includes the upper die base and takes off the flitch, and lower die mechanism includes die plate and die holder, characterized by: the bending structure comprises a bending component and a positioning component;
the bending assembly comprises an upper bending group and a lower bending group which are positioned on two sides of the positioning assembly, the upper bending group and the lower bending group respectively comprise an upper bending die and a lower bending die, the upper bending die is fixed on the upper die base and moves up and down along with the upper die base, and the lower bending die is in up-and-down sliding fit in the female die plate;
the positioning assembly comprises an upper positioning block and a lower positioning block, the upper positioning block is fixed on the stripper plate, and the lower positioning block is fixed on the female die plate and forms a pressing position with the upper positioning block for pressing the middle part of the workpiece.
2. The bending structure of a bender according to claim 1, wherein: the central position of the female die plate is provided with an embedded groove, the lower positioning block is embedded in the central position of the embedded groove, and the embedded groove forms a sliding groove for the lower bending die to slide up and down corresponding to the positions on two sides of the lower positioning block.
3. The bending structure of a bender according to claim 1, wherein: an assembly groove is formed in the center of the stripper plate, the upper positioning block is fixed to the center of the assembly groove, and avoidance openings for the upper bending die to penetrate through are formed in the positions, corresponding to the two sides of the upper positioning block, of the assembly groove.
4. The bending structure of a bender according to claim 1, wherein: the top surface of the lower positioning block is lower than the upper notch of the caulking groove.
5. The bending structure of a bender according to claim 1, wherein: the corners on the corresponding surfaces of the upper bending die and the lower bending die are arc corners.
CN202023103430.6U 2020-12-21 2020-12-21 Bending structure of bending die Active CN214976846U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202023103430.6U CN214976846U (en) 2020-12-21 2020-12-21 Bending structure of bending die

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202023103430.6U CN214976846U (en) 2020-12-21 2020-12-21 Bending structure of bending die

Publications (1)

Publication Number Publication Date
CN214976846U true CN214976846U (en) 2021-12-03

Family

ID=79084597

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202023103430.6U Active CN214976846U (en) 2020-12-21 2020-12-21 Bending structure of bending die

Country Status (1)

Country Link
CN (1) CN214976846U (en)

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