CN111014368A

CN111014368A - Scratch-free bending mechanism

Info

Publication number: CN111014368A
Application number: CN201911359964.4A
Authority: CN
Inventors: 张学祥
Original assignee: Chuzhou Aide Moulding Equipment Co ltd
Current assignee: Chuzhou Aide Moulding Equipment Co ltd
Priority date: 2019-12-25
Filing date: 2019-12-25
Publication date: 2020-04-17

Abstract

The invention provides a scratch-free bending mechanism which comprises a male die; a rotary female die is arranged below the male die and is rotationally fixed on a sliding chute of the female die fixing plate; the lower part of the rotary female die is fixedly connected with the ejector pin; the thimble is fixedly connected with the screw plug through a spring; the screw plug is fixedly arranged on the female die fixing plate; the right side of the rotary female die is provided with a female die pressing block in contact with the rotary female die, and the female die pressing block is arranged on the female die fixing plate and is inclined with the contact surface of the rotary groove; and a bending opening is formed in the rotary female die, and the right side end of the male die is positioned right above the bending opening. In the whole bending process, the clearance between the male die and the female die is always larger than the thickness of the material sheet, so that the surface of the material sheet is not damaged; the debugging time of the die is greatly reduced, the manufacturing period of the product is shortened, and the qualification rate of the product is improved.

Description

Scratch-free bending mechanism

Technical Field

The invention belongs to the technical field of die equipment, and particularly relates to a scratch-free bending mechanism.

Background

When a bending mechanism of a current stage is used for a product with high yield of materials such as stainless steel, the influence of surface smoothness in the bending process can exist, and surface defects such as scratch paint falling, film falling and the like can easily occur; resulting in high defective rate and affecting the processing efficiency of products.

Disclosure of Invention

The invention aims to provide a scratch-free bending mechanism aiming at the defects in the prior art, so that the bent surface is ensured not to have defects of smooth finish and scratch marks, and the operation stability is improved.

In order to achieve the above object, the present invention provides a scratch-free bending mechanism,

comprises a position convex die; a rotary female die is arranged below the male die and is rotationally fixed on a sliding chute of the female die fixing plate; the lower part of the rotary female die is fixedly connected with the ejector pin; the thimble is fixedly connected with the screw plug through a spring; the screw plug is fixedly arranged on the female die fixing plate; the right side of the rotary female die is provided with a female die pressing block in contact with the rotary female die, and the female die pressing block is arranged on the female die fixing plate and is inclined with the contact surface of the rotary groove; and a bending opening is formed in the rotary female die, and the right side end of the male die is positioned right above the bending opening.

As an improvement of the scheme, the clearance between the male die and the rotary female die is always larger than the thickness of the material piece to be bent in the whole bending process.

As an improvement of the scheme, the two sides of the rotary female die are arc-shaped, the bottom of the rotary female die is provided with a notch matched with the ejector pin, the structure is stable, and the operation is convenient.

As an improvement of the scheme, the top end of the side edge of the bending opening in the working bending direction of the rotary female die is arc-shaped, and scratching caused by bending is avoided.

As an improvement of the scheme, the female die pressing block is fixedly arranged on the female die fixing plate through screws, so that the female die pressing block is convenient to mount.

The working principle of the device is as follows: placing a material piece to be bent above the rotary female die, and connecting the male die with punching equipment such as a punching machine of field equipment when the die is closed; pressing the material sheet and the rotary female die downwards, rotating the rotary female die and the material sheet along a sliding groove of a female die fixing plate immediately and completing bending by utilizing a bending opening; and opening the mold, rotating the female mold to the right to reset after receiving the thrust of the spring and the ejector pin, and finishing the action of the mold. In the whole bending process, the clearance between the male die and the female die is always larger than the thickness of the material sheet, so that the surface of the material sheet is not damaged; the debugging time of the die is greatly reduced, the manufacturing period of the product is shortened, and the qualification rate of the product is improved.

Drawings

FIG. 1 is a schematic diagram of the present invention prior to closure;

FIG. 2 is a schematic view of the closed configuration of the present invention;

list of reference numerals: 1. a male die; 2. rotating the female die; 3. fixing a female die plate; 4. a thimble; 5. a spring; 6. a plug screw; 7. pressing a concave die block; 8. bending the opening; 9. a screw; 10. a notch; 11. a web.

Detailed Description

The present invention will be further illustrated with reference to the accompanying drawings and specific embodiments, which are to be understood as merely illustrative of the invention and not as limiting the scope of the invention. It should be noted that the terms "front," "back," "left," "right," "upper" and "lower" used in the following description refer to directions in the drawings, and the terms "inner" and "outer" refer to directions toward and away from, respectively, the geometric center of a particular component.

As shown in fig. 1-2: a scratch-free bending mechanism comprises a male die 1; a rotary female die 2 is arranged below the male die 1, and the rotary female die 2 is rotationally fixed on the female die fixing plate 3; the lower part of the rotary female die 2 is fixedly connected with the ejector pin 4; 1, the thimble 4 is fixedly connected with a screw plug 6 through a spring 5; the screw plug 6 is fixedly arranged on the female die fixing plate 3; the right side of the rotary female die 2 is provided with a female die pressing block 7 which is in contact with the rotary female die, and the female die pressing block 7 is fixedly and fixedly arranged on the female die fixing plate 3 through a screw 9 and is inclined with the contact surface of the rotary female die 2; and a bending opening 8 is formed in the rotary female die 2, wherein the right side end of the male die 1 is positioned right above the bending opening 8. The top end of the side edge of the bending opening 8 in the working bending direction of the rotary female die 2 is arc-shaped.

Wherein the clearance between the male die 1 and the rotary female die 2 is always larger than the thickness of the material piece to be bent in the whole bending process.

Wherein, the two sides of the rotary concave die 2 are arc-shaped, and the bottom of the rotary concave die is provided with a notch 10 matched with the thimble 4.

The embodiment works as follows: placing a material piece 11 to be bent above the rotary female die 2, and connecting the male die 1 with punching equipment such as a punching machine of field equipment when the die is closed; the material sheet 11 and the rotary female die 2 are pressed downwards, the rotary female die 2 and the material sheet 11 rotate along the sliding groove of the female die fixing plate 3 immediately and are bent by the bending opening 8; and (3) opening the mold, rotating the female mold 2 to rotate rightwards to reset after receiving the thrust of the spring 5 and the ejector pin 4, and finishing the action of the mold. In the whole bending process, the clearance between the male die 1 and the rotary female die 2 is always larger than the thickness of the material sheet 11, so that the surface of the material sheet is not damaged; the debugging time of the die is greatly reduced, the manufacturing period of the product is shortened, and the qualification rate of the product is improved.

The technical means disclosed in the invention are not limited to the technical means disclosed in the above embodiments, but also include technical means formed by any combination of the above technical features.

Claims

1. The utility model provides a no scotch mechanism of bending which characterized in that: comprises a position convex die (1); a rotary female die (2) is arranged below the male die (1), and the rotary female die (2) is rotationally fixed in a sliding chute of the female die fixing plate (3); the lower part of the rotary female die (2) is fixedly connected with the ejector pin (4); the thimble (4) is fixedly connected with the screw plug (6) through a spring (5); the screw plug (6) is fixedly arranged on the female die fixing plate (3); the right side of the rotary female die (2) is provided with a female die pressing block (7) in contact with the rotary female die, and the female die pressing block (7) is arranged on the female die fixing plate (3) and is inclined with the contact surface of the rotary groove (2); and a bending opening (8) is formed in the rotary female die (2), wherein the right side end of the male die (1) is positioned right above the bending opening (8).

2. A scratch-free bending mechanism as claimed in claim 1, wherein: wherein the clearance between the male die (1) and the rotary female die (2) is always larger than the thickness of the material piece to be bent in the whole bending process.

3. A scratch-free bending mechanism as claimed in claim 1, wherein: the two sides of the rotary female die (2) are arc-shaped, and the bottom of the rotary female die is provided with a notch (10) matched with the thimble (4).

4. A scratch-free bending mechanism as claimed in claim 1, wherein: wherein the top end of the side edge of the bending opening (8) along the working bending direction of the rotary female die (2) is arc-shaped.

5. A scratch-free bending mechanism according to claim 1, wherein; and the female die pressing block (7) is fixedly fixed on the female die fixing plate (3) through a screw (9).