CN104707911A - Punching and blanking mold for small bracket - Google Patents

Abstract

A small bracket punching and blanking die, which includes: an upper mold base and a lower mold base, the center below the upper mold base is connected with an upper backing plate, a punch fixing plate, a punch, the first punch and the second punch The first punch is tightly fitted on the punch fixing plate, the second punch is fixed on the punch fixing plate through a square pin, and the die fixing plate and the die are connected in the center above the lower die base. The punch is a detachable movable punch, which is fixed and installed under the upper backing plate through the inner hexagonal screw, and then connected with the upper die base. Screws and cylindrical pins are fixedly installed on the top of the die fixing plate, and the die fixing plate is fixedly installed above the lower mold base through screws and cylindrical pins; The model can be selected according to the needs, and the structure is simple, the labor intensity is low, and the production efficiency is high.

Description

A small bracket punching and blanking die

technical field

The invention relates to a cold stamping die, in particular to a small bracket punching and blanking die.

Background technique

The small bracket is the main part of the steel plate rear axle of the car. It is welded next to the steel plate spring seat and used to fix and connect other parts. Therefore, the size requirements are relatively high. At present, the small bracket uses a shearing machine first. Cutting four square blocks, then drilling, and then milling long holes, this processing method has low efficiency, is not suitable for mass production, and has high work intensity.

Contents of the invention

The purpose of the present invention is to overcome the above-mentioned deficiencies of the prior art and provide a small bracket punching and blanking die, which can reduce labor intensity and improve work efficiency.

The technical solution of the present invention is: a small bracket punching and blanking die, which includes: an upper mold base and a lower mold base, an upper backing plate, a punch fixing plate, and a punch are connected to the center below the upper mold base. The I punch and the II punch, the I punch is tightly fitted and installed in the punch fixing plate, the II punch is fixed and installed on the punch fixing plate through a square pin, and the center of the lower die base is connected with a concave hole. Die fixing plate and die, the punch is a detachable movable punch, it first passes through the punch fixing plate, and then is fixed and installed under the upper backing plate by hexagon socket screws, and then connected with the upper die base, the The die described above is a detachable movable die, which is fixedly installed above the die set plate by hexagon socket head cap screws and cylindrical pins, and the die set plate is fixedly installed above the lower mold seat by screws and cylindrical pins, so that due to the The mold and the upper mold base can be disassembled from each other, the die and the die fixing plate can be disassembled from each other, and different punches and dies can be selected according to the types of blanking parts to be processed.

Further, the upper part of the punching and blanking die for the small bracket also includes a die handle, which is fixedly installed on the upper center of the upper die base through a tight fit, and guide sleeves and guide posts are also included on both sides of the die, which are passed through It is installed on the upper mold base and the lower mold base in a tight fit mode, and the guide sleeve and the guide post are connected by a sliding fit.

Furthermore, the small bracket punching and blanking die also includes a discharge device, and a discharge rubber and a discharge plate are installed under the punch fixing plate of the upper die base, which are connected to the upper die base through discharge screws. Together, the discharge screw moves up and down in the upper die seat.

Still further, the described small bracket punching and blanking die also includes a positioning plate, positioning pins and limit pins, the positioning plate is fixed and installed under the die on the die fixing plate through countersunk screws, The matching method is fixedly installed on the left side of the die, and the limit pin is installed in the square groove in the positioning plate.

Still further, the small bracket punching and blanking die also includes pads and top blocks, the pads are fixedly installed on both sides below the lower mold base by bolts, and the top block is fixedly mounted on the side of the die by hexagon socket screws .

Compared with the prior art, the present invention has the following characteristics:

By designing a variety of detachable punches and dies, and the models of the punches and dies can be selected according to needs, the universality of blanking stamping dies is solved. On the other hand, the small bracket punches and falls The material mold has simple structure, high production efficiency, low labor intensity and simple operation.

The detailed structure of the invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

Description of drawings

Accompanying drawing 1 is a structural representation of the present invention;

Accompanying drawing 2 is the top view of accompanying drawing 1;

Accompanying drawing 3 is the structural representation of punch;

Accompanying drawing 4 is the top view of accompanying drawing 3;

Accompanying drawing 5 is the structural representation of die;

Accompanying drawing 6 is the structural representation of the II punch;

Accompanying drawing 7 is the top view of accompanying drawing 6;

Accompanying drawing 8 is the structural representation of die fixed plate;

Accompanying drawing 9 is A-A sectional drawing of accompanying drawing 8.

Detailed ways

In order to make the purpose, technical solutions and advantages of the present invention clearer, the implementation of the present invention will be further described in detail below in conjunction with the accompanying drawings:

The present embodiment: a kind of small bracket punching and blanking mold, with reference to Fig. 1 and Fig. 2, this mold comprises upper mold base 2 and lower mold base 11, and the center below upper mold base 2 is connected with upper backing plate 28, Punch fixed plate 5, punch 17, the I punch 7 and the II punch 23, the I punch 7 is tightly fitted in the punch fixed plate 5, and the II punch is fixedly installed in the punch fixed plate 5 by square pin 24 On the punch fixed plate 5, the center of the lower mold base 11 top is connected with the die fixed plate 10 and the die 16, and the punch 17 is a detachable movable punch, which passes through the punch fixed plate 5, Then, it is fixedly installed below the upper backing plate 28 by the hexagon socket head cap screw 4, and then connected with the upper die base 2. Above the die set plate 10, the die set plate 10 is fixedly installed above the lower mold base 11 by screws 12 and cylindrical pins 9, like this, since the punch 17 and the upper die base 2 can be disassembled each other, the die 16 and The die fixing plates 10 can be disassembled from each other, and different punches 17 and dies 16 can be selected according to the different models of blanking parts to be processed.

The top of the small bracket punching and blanking die also includes a die handle 1, which is fixedly installed on the upper center of the upper die base 2 through a tight fit, and guide sleeves 16 and guide posts 14 are also included on both sides of the die, which are It is installed on the upper mold base 2 and the lower mold base 11 through tight fit, and the guide sleeve 16 and the guide post 14 are connected by sliding fit.

The described small bracket punching and blanking die also includes a discharge device, and a discharge rubber 6 and a discharge plate 8 are installed below the punch fixing plate 5 of the upper die base 2, and the upper die base 2 is connected with the discharge screw 19. Connected together, the discharge screw 19 moves up and down in the upper die holder.

The described small bracket punching and blanking die also includes a positioning plate 21, a positioning pin 15 and a limit pin 29, and the positioning plate 21 is fixedly installed under the die 16 on the die fixing plate 10 by countersunk screws 22, and the positioning The pin 15 is fixedly installed on the left side of the die 16 by tight fit, and the limit pin 29 is installed in the square groove in the positioning plate 21 .

The small bracket punching and blanking die also includes a spacer 26 and a top block 27, the spacer 26 is fixedly installed on both sides below the lower mold base 11 by bolts 25, and the top block 27 is fixedly installed in the concave hole by the hexagon socket head cap screw 12. Next to the mold 16.

The working principle and using method of the present invention are as follows: a mold handle 1 is provided at the center of the upper mold base 2 to facilitate the connection of the mold with the machine tool, and a guide sleeve 18 and a guide post 14 are respectively provided in the upper and lower mold bases for use To align the center of the upper and lower mold bases, the upper mold base 2 is equipped with a discharge rubber 6, a discharge plate 8, and a discharge screw 19, which are used to discharge product waste. The plate 21 and the positioning pin 15 are used to position the product. A cushion block 26 is provided under the lower mold base 11 to increase the closed height of the mold, and it is also convenient to receive the products that are blanked. Block 27 is used to increase the strength of the reinforcement die 16. A limit pin 29 is provided in the positioning plate 21 for the blanking positioning of the first piece of material. A blanking step hole is provided in the center of the die 16 near the lower die base The size of the blanking hole on one side must be larger than the size of the upper blanking hole, which is the same as the size of the square hole in the center of the lower mold base, so that the blanking parts can come out from the punch to the lower mold base.

Claims (5)

1. a kind of small support punching and blanking die, it comprises: upper mold base and lower mold base, the center below described upper mold base is connected with upper backing plate, punch fixed plate, punch, the 1st punch and the 1st punch For the punch II, the first punch is tightly fitted and installed in the punch fixing plate, and the second punch is fixed and installed on the punch fixing plate through a square pin. The fixed plate and the concave die, the punch is a detachable movable punch, it first passes through the punch fixed plate, and then is fixed and installed under the upper backing plate through the inner hexagonal screw, and then connected with the upper die base, the said The die is a detachable movable die, which is fixedly installed above the die fixing plate by hexagon socket head cap screws and cylindrical pins, and the die fixing plate is fixedly installed above the lower mold base by screws and cylindrical pins. 2. A small bracket punching and blanking die according to claim 1, characterized in that: the top of the small bracket punching and blanking die also includes a handle, which is fixedly installed on the upper die by a tight fit The upper center of the seat also includes guide sleeves and guide posts on both sides of the mold, which are installed on the upper die base and lower die base by tight fit, and the guide sleeves and guide posts are connected by sliding fit. 3. A small bracket punching and blanking die according to claim 1, characterized in that: the small bracket punching and blanking die also includes a discharge device, which is installed under the punch fixing plate of the upper die base There is a discharge rubber and a discharge plate, which are connected with the upper die base through the discharge screw, and the discharge screw moves up and down in the upper die base. 4. A small bracket punching and blanking die according to claim 1, characterized in that: the small bracket punching and blanking die also includes a positioning plate, a positioning pin and a limit pin, and the positioning plate passes through the countersunk The screw is fixedly installed under the die on the die fixing plate, the positioning pin is fixedly installed on the left side of the die by tight fit, and the limit pin is installed in the square groove in the positioning plate. 5. A small bracket punching and blanking mold according to claim 1, characterized in that: said small bracket punching and blanking mold also includes a pad and a top block, and the pad is fixed and installed on the lower mold by bolts On the two sides below the seat, the top block is fixedly installed on the side of the die by hexagon socket head screws.