CN202045258U - Simple general drawing die allowing adjustment of blank holding force - Google Patents

Abstract

The utility model relates to a simple universal deep-drawing mold with adjustable blank-holding force. The mold includes an upper mold part, a lower mold part and a blank-holding part. The upper mold part includes a mold handle, an upper mold seat plate, a guide sleeve, a backing plate, Punch fixed plate, punch, mold handle is connected with upper die seat plate, guide sleeve is set on both sides of upper die seat plate, backing plate is connected with upper die seat plate, punch fixed plate is connected with backing plate, punch and punch The mold fixing plate is connected. The lower mold part includes the lower mold seat plate, the die backing plate, the lower locking block, the die insert, the die fixing plate, and the guide column. The die backing plate is arranged on the lower die seat plate. The fixed plate is connected with the backing plate of the die, the insert of the die is connected with the fixed plate of the die, the guide posts are arranged on both sides of the lower die seat plate, and the blank holder part includes a blank holder ring, an upper locking block, and a handle. The tight block, the handle are connected with the blank holder ring. Compared with the prior art, the utility model has the advantages of simple mold structure, convenient use, adjustable blank-holding force at any time, and convenient mold replacement and maintenance.

Description

A simple universal deep drawing die with adjustable blank holder force

technical field

The utility model relates to a deep-drawing die, in particular to a simple general-purpose deep-drawing die with adjustable blank-holding force.

Background technique

Deep drawing is an important process in the field of sheet metal stamping. It is widely used in industries such as automobiles, instruments, electronics, and daily necessities. The deep drawing process often involves two major quality problems, cracking and wrinkling. The solution is to use Appropriate blankholder force. At present, elastic elements and hydraulic cushions are generally used to generate blank-holding force, or variable blank-holding device. The former has a simple structure, but the force increases with the increase of the stroke, which is easy to cause rupture. The latter blank-holding force can be adjusted, but the structure is complex and the mold high cost. If the thickness of the sheet material changes or small batch trial production, the cost will be greatly increased and the trial period will be increased.

Utility model content

The purpose of this utility model is to provide a simple structure, easy to use, and easy to replace and maintain in order to overcome the defects of the prior art.

The purpose of the utility model can be achieved through the following technical solutions: a simple and adjustable blank-holding force universal drawing die, characterized in that the die is mainly composed of an upper mold part, a lower mold part, and a blank-holding part. The upper mold part includes a mold handle, an upper mold base plate, a guide sleeve, a backing plate, a punch fixing plate, and a punch. The mold handle is connected with the upper mold base plate, and the guide sleeve is arranged on both sides of the upper mold base plate. On the side, the backing plate is connected with the upper die seat plate, the punch fixing plate is connected with the backing plate, the punch is connected with the punch fixing plate, and the lower mold part includes the lower die seat plate, The die backing plate, the lower locking block, the die insert, the die fixing plate, and the guide post, the die backing plate is arranged on the lower die seat plate, and the die fixing plate is connected with the die backing plate , the die insert is connected to the die fixing plate, the guide posts are arranged on both sides of the lower die seat plate, and are slidably matched with the guide sleeve, and the blank holder part includes a blank holder ring, an upper locking block, The handle, the upper locking block, the handle and the blank holder are threaded.

The upper mold part includes a rotation-stop pin, which is arranged at the joint between the mold handle and the upper mold seat plate.

The mold shank is connected with the upper mold seat plate by interference fit.

The punch is connected with the punch fixing plate by interference fit.

The upper mold part is also provided with a suspension ring, and the blank holder part is connected with the suspension ring through a chain.

The blank-holding part is provided with an upper locking block, the lower mold part is provided with a lower locking block, and the blank-holding part is also provided with a handle that can be screwed in to adjust the blank-holding force.

Compared with the prior art, the utility model not only solves the problem that the deep-drawing dies produced in the past can only draw one plate thickness, but also ensures the adjustability of the blank-holding force. Block structure, easy to replace and repair, to adapt to the production of deep-drawn products of different thickness and size.

Description of drawings

Fig. 1 is the structural representation of the utility model;

Figure 2 is a schematic diagram of the structure after the upper and lower molds are separated.

In Figure 1, 1 is the mold handle, 2 is the stop pin, 3 is the upper mold seat plate, 4 is the lifting ring, 5 is the guide sleeve, 6 is the guide post, 7 is the backing plate, 8 is the punch fixing plate, and 9 is the punch , 10 are blank holders, and 11 are upper locking blocks.

Among Fig. 2, 12 is a die fixing block, 13 is a die insert, 14 is a lower locking block, 15 is a die cushion block, and 16 is a lower die seat plate.

Detailed ways

The utility model will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

Example

As shown in Figure 1 and Figure 2, a simple universal deep drawing die with adjustable blank holder force, the die is mainly composed of an upper mold part, a lower mold part, and a blank holder part. 2. The upper die seat plate 3, the suspension ring 4, the guide sleeve 5, the backing plate 7, the punch fixing plate 8, and the punch 9 are composed. Die shank 1 is in interference fit with upper die seat plate 3 and is fixed by anti-rotation pin 2 . The backing plate 7 and the punch fixing plate 8 are connected to the upper die seat plate 3 by hexagon socket head cap screws, and are positioned by pins. The punch 9 is in interference fit with the punch fixing plate 8, and the guide sleeve 5 is arranged on both sides of the upper die seat plate 3. The suspension ring 4 is arranged on the upper die seat plate 3 .

Lower mold part is made up of lower mold seat plate 16, die backing plate 15, lower locking block 14, die insert 13, die fixed plate 12, guide post 6. Die backing plate 15, lower die seat plate 16 and die fixed plate 12 are connected by hexagon socket head cap screws, and the pins are positioned. Die fixed plate 12 and die backing plate 15 are connected by hexagon socket head cap screws. The lower locking block 14 is fixed on the die fixing plate 12 by hexagon socket head cap screws. The die insert 13 is connected with the die fixing plate 12 . Guide pillars 6 are arranged on both sides of the lower mold seat plate, and the guide pillars 6 are connected with the guide sleeve 5 .

The blank holder part is made up of blank holder ring 10, upper locking block 11, handle. The handle is fastened on the blank holder 10 by threads, and the upper locking block 11 is fixed on the blank holder 10 by a hexagon socket head cap screw. The blank holder ring 10 is connected to the suspension ring 4 by a chain. The upper locking block 11 and the lower locking block 14 are locked by a curved surface with a gradual gradient to generate blank-holding force.

In the non-working state, the blankholder 10 is connected to the lifting ring 4 by a chain, put in the rough blank that needs to be drawn, the upper die moves downward, and the blankholder also touches the sheet blank, then the handle is rotated to push the upper locking block 11 is screwed into the lower locking block 14 to generate blank-holding force, and the blank-holding force is fixed, the press continues to descend, the punch 9 enters the die insert 13 to complete the drawing, and the punched part leaks from the lower die hole fall. Unclamp the handle, the upper locking block 11 and the lower locking block 14 are disengaged, and the upper die moves upward, and the blank holder 10 moves upward thereupon under the drive of the chain, leaving the lower die.

Claims (6)

1. A simple general-purpose deep-drawing die with adjustable blank-holding force is characterized in that the die is mainly composed of an upper mold part, a lower mold part, and a blank-holding part, and the upper mold part includes a die handle and an upper die seat plate , guide sleeve, backing plate, punch fixing plate, punch, the described die handle is connected with the upper die seat plate, the described guide sleeve is arranged on both sides of the upper die seat plate, the described backing plate and the upper die seat The plate is connected, the punch fixed plate is connected with the backing plate, the punch is connected with the punch fixed plate, and the lower mold part includes the lower die seat plate, the die backing plate, the lower locking block, the concave die Die insert, die fixing plate, guide post, described die backing plate is arranged on lower mold base plate, described die fixing plate is connected with die backing plate, described die inserting block and die The fixed plate is connected, and the guide posts are arranged on both sides of the lower mold seat plate, and are slidably matched with the guide sleeve. The blank holder part includes a blank holder ring, an upper locking block, and a handle. The upper locking block, the handle Threaded connection with blank holder. 2. A simple general-purpose drawing die with adjustable blank-holding force according to claim 1, wherein the upper die part includes a detent pin, and the detent pin is arranged on the die handle and the upper die seat plate of the seams. 3. A simple general-purpose drawing die with adjustable blank-holding force according to claim 1, characterized in that the die shank is connected with the base plate of the upper die with an interference fit. 4. A simple universal drawing die with adjustable blank-holding force according to claim 1, characterized in that the punch is connected to the punch fixing plate with an interference fit. 5. A simple general-purpose deep drawing die with adjustable blank-holding force according to claim 1, characterized in that the upper mold part is also provided with a lifting ring, and the blank-holding part is connected with the lifting ring through a chain. 6. A simple general-purpose drawing die with adjustable blank-holding force according to claim 1, wherein the blank-holding part is provided with an upper locking block, and the lower die part is provided with a lower locking block, so that The above-mentioned blank-holding part is also provided with a handle that can be screwed in to adjust the blank-holding force.

Images