CN104475535B - Blanking die with braking function and working method thereof - Google Patents

Abstract

The invention relates to a blanking die with a braking function and a working method thereof, belonging to the technical field of metal stamping. The blanking die comprises an upper die base, a lower die base, a male die, a female die, a vertical guide pillar and a square guide sleeve, wherein a female die hole is formed in the female die, the side face of a wing plate of the vertical guide pillar is in sliding fit with a pair of inner side faces opposite to the square guide sleeve, a brake connected with an external brake pipeline is arranged at the lower end of the vertical guide pillar, the brake comprises a pair of brake shoes which are oppositely arranged, one ends of the brake shoes are hinged to a web plate of the vertical guide pillar, the other ends of the pair of brake shoes are in rolling connection with a driving cam, the brake shoes are provided with inclined planes inclined towards the other ends of the brake shoes and friction plates arranged on the inclined planes, and when the square guide sleeve is located at the. The blanking die has the advantage that emergency braking is carried out on the micro blanking machine under dangerous conditions, so that personnel safety is protected.

Description

Punching die with braking function and its working method

This application is a divisional application. The invention-creation name of the original application: punching die with braking function, application number: 201310266209.8, application date: 2013-06-28.

technical field

The invention relates to a die, which belongs to the technical field of metal stamping.

Background technique

The blanking process in mechanical processing occupies an important position in the processing industry of the national economy. The application fields of sheet metal parts are extremely wide, and they penetrate into all aspects of the manufacturing industry. Sheet metal forming is mainly realized by punching dies. The blanking process has a series of advantages such as high precision, high efficiency, good quality, cost saving, material and energy saving.

At present, many enterprises still use the simple manual operation method when using the blanking method to process and produce, that is, to directly load and take parts in the mold cavity by hand, and a large number of blanking equipment are responsible for multiple products or multiple processes. manufacturing tasks. In this case, if the punching equipment and molds do not have safety protection equipment, accidents such as hand injuries are very likely to occur. Therefore, strengthening safety protection, safety management and improving the degree of mechanization in blanking production is an important task to prevent accidents.

Blanking equipment has a great impact on production safety. For example, the punch itself has defects, lack of safety protection devices, clutches and brakes are not sensitive and reliable enough, electrical control structure suddenly loses control and continuous punching occurs, and accessory tools are defective, etc., all of which are important causes of accidents.

The applicant found that the accidents of miniature or small punching machines have a high frequency of accidents. Therefore, attempting to make safety improvements to miniature or small punching machines is the key to reducing accidents such as injuries to hands.

Contents of the invention

The technical problem to be solved by the present invention is to propose a blanking die with a braking function that can be used for emergency braking in view of the deficiencies in the prior art.

The technical solution proposed by the present invention to solve the above technical problems is: a blanking die with a braking function, including an upper mold base and a lower mold base that are oppositely arranged, the upper mold base is provided with a punch, and the lower mold base is provided with a punch. The die base is provided with a die, and the die base is formed with a die hole that matches the punch. The lower die base is fixed with an I-shaped vertical guide column, and the upper die base is provided with a vertical guide column. A square guide sleeve with a sliding fit for the column. The wing plate side of the vertical guide column is slidably fitted with a pair of inner sides opposite to the square guide sleeve. The lower end of the vertical guide column is provided with a brake connected to the external brake pipeline. The brake It consists of a pair of brake shoes that are set opposite and one end is hinged on the web of the vertical guide column. The other end of the pair of brake shoes is rollingly connected with the driving cam. The brake shoe is formed with an inclined surface that is inclined to the other end of the brake shoe. And the friction plate arranged on the inclined surface, when the square guide sleeve is located at the brake at the lower end of the vertical guide column, the drive cam drives the brake shoe to rotate and makes the friction plate and the other pair of inner sides of the square guide sleeve opposite Fit tight.

A braking method for the blanking die, comprising: when the guide sleeve is located at the brake at the lower end of the vertical guide post, the driving cam drives the brake shoe to rotate and makes the other pair of friction plates opposite to the guide sleeve The inner side fits snugly.

The beneficial effect of adopting the above-mentioned technical solution in the present invention is: the lower end of the vertical guide column is provided with a brake connected to the external brake pipeline, and when the square guide sleeve is located at the brake at the lower end of the vertical guide column, the driving cam drives the brake shoes to rotate and make The other pair of inner surfaces of the friction plate and the square guide sleeve are locked together and locked. On the micro blanking machine, when a dangerous situation occurs, emergency braking can be realized to protect the safety of personnel.

The improvement of the above technical solution is: the punch is provided with a detection device for detecting foreign matter in the punching stroke of the punch, the output end of the detection device is connected to the input end of the control device, and the output end of the control device is connected to Control end of the brake line.

The improvement of the above technical solution is: the vertical guide posts are at least two vertical guide posts arranged parallel to each other, and each vertical guide post is provided with a square guide sleeve.

Description of drawings

Fig. 1 is a schematic structural view of a blanking die with braking function according to an embodiment of the present invention.

Fig. 2 is a schematic structural diagram of the brake in Fig. 1 .

detailed description

Example

The blanking die with brake function of the present embodiment, as shown in Figure 1 and Figure 2, comprises the upper mold base 1 and the lower mold base 2 that are arranged oppositely, is provided with punch 3 on the upper mold base 1, and the lower mold base 2 is provided with die 4, and die 4 is shaped on the die hole 4-1 that cooperates with punch 3.

The lower mold base 2 is fixed with an I-shaped vertical guide column 5, and the upper mold base 1 is provided with a square guide sleeve 6 that slides with the vertical guide column 5. The side surfaces of the wing plate 5 - 1 of the upright guide post 5 are slidably fitted with a pair of inner side surfaces opposite to the square guide sleeve 6 .

A brake 8 connected to an external brake pipeline 7 is provided on the web 5-2 at the lower end of the vertical guide column 5 . The brake 8 includes a pair of brake shoes 8-1 oppositely arranged and one end of which is hinged on the web of the vertical guide post. The other end of a pair of brake shoes 8-1 is rollingly connected with the drive cam 8-2, and the brake shoe 8-1 is formed with an inclined surface inclined to the other end of the brake shoe and a friction plate 8- 3.

When the square guide sleeve 6 was positioned at the brake 8 at the lower end of the vertical guide column 5, the drive cam 8-2 drove the brake shoe 8-1 to rotate and made the friction plate 8-3 stick to the opposite inner side of the square guide sleeve 6. Hug to death.

The punch 3 of this embodiment is provided with a detection device 9 for detecting foreign matter in the punching stroke of the punch, the output end of the detection device 9 is connected to the input end of the control device 10, and the output end of the control device 10 is connected to the brake pipeline 7's control terminal. The detection device 9 may be an electromagnetic detection device or an infrared detection device.

The upright guide posts 5 in this embodiment are at least two upright guide posts arranged parallel to each other, and each upright guide post 5 is provided with a square guide sleeve.

The present invention is not limited to the above-described embodiments. All technical solutions formed by equivalent replacements fall within the scope of protection required by the present invention.

Claims (1)

1. A blanking die, comprising upper and lower mold bases arranged oppositely, an I-shaped vertical guide column is fixed on the lower mold base, and a guide sleeve that is slidably matched with the vertical guide column is provided on the upper mold base , it is characterized in that: the side of the wing plate of the vertical guide post is slidably matched with a pair of inner sides opposite to the guide sleeve, the lower end of the vertical guide post is provided with a brake connected to the external brake pipeline, and the brake includes a pair of opposite The brake shoe is set and one end is hinged on the web of the vertical guide column. The other end of the pair of brake shoes is rollingly connected with the driving cam. When the guide sleeve is located at the brake at the lower end of the vertical guide post, the drive cam drives the brake shoe to rotate and makes the other pair of inner surfaces of the friction plate and the guide sleeve to fit and lock; The upright guide posts are at least two upright guide posts arranged parallel to each other, and each upright guide post is provided with a square guide sleeve.