CN110893434A

CN110893434A - Sawtooth blanking die for plate suit cutting

Info

Publication number: CN110893434A
Application number: CN201910070365.4A
Authority: CN
Inventors: 耿世君
Original assignee: Changchun Shengshi Mould Co Ltd
Current assignee: Changchun Shengshi Mould Co Ltd
Priority date: 2019-01-25
Filing date: 2019-01-25
Publication date: 2020-03-20
Anticipated expiration: 2039-01-25
Also published as: CN110893434B

Abstract

The invention discloses a sawtooth blanking die for plate cutting, which comprises an upper die plate and a lower die plate, wherein the upper die plate and the lower die plate are respectively and fixedly arranged on corresponding production equipment through U grooves, a compact guide pillar assembly and a bushing for accurate guiding, a female die cutter block and a male die cutter block are respectively arranged on the upper die plate and the lower die plate, the female die cutter block and the male die cutter block are respectively and fixedly arranged on the lower die plate and the upper die plate through screws, a pressure plate is fixedly connected with a nitrogen spring through a top block, and a width adjusting device is fixedly arranged at a plate material inlet and is positioned on the upper die plate. The guide plate and the reverse side plate are arranged, so that the lateral displacement of the plate in the stamping process is avoided, and meanwhile, the material pressing plate, the material support device and the nitrogen spring are arranged, so that the prepressing effect on the stamped plate is realized, the deflection of the plate is avoided, and the stamping precision and the material utilization rate are improved; the setting of inseparable guide pillar subassembly and bush to the laminating of last mould and lower mould, provides accurate direction, has avoided the precision error that the laminating produced, and then has improved the punching press precision, reaches material saving's purpose.

Description

Sawtooth blanking die for plate suit cutting

Technical Field

The invention relates to the technical field of automobile plate processing equipment, in particular to a saw-tooth blanking die for plate cutting.

Background

More than 90% of the products of an automobile are made of automobile steel. About 70% of metal parts of automobile parts are obtained by stamping, and for stamping, the material utilization rate directly influences the economic benefit of the automobile industry. With the rapid development of the automobile industry, iron ore energy sources will be more and more scarce, and the automobile manufacturing cost will be higher and higher, so that designers are required to continuously improve the design and process level to improve the material utilization rate, improve the automobile manufacturing cost and improve the market competitiveness.

The existing automobile plate stamping process has the following obvious defects:

1. in the process of stamping the plate, the plate is easy to displace due to the extrusion force, so that the defective rate of stamping is high, and the stamping precision is low;

2. in the process of attaching the upper die and the lower die, the attaching precision is poor due to the fact that the plate has certain thickness, and the stamping precision is affected.

Disclosure of Invention

The invention aims to provide a sawtooth blanking die for plate suit cutting, which aims to solve the problems in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme:

a blanking die for blanking automobile sheet material with saw-tooth shape for sheet material suit cutting comprises

The upper template and the lower template are respectively and fixedly arranged on corresponding production equipment through U grooves, a compact guide pillar assembly and a bushing for accurate guiding are respectively arranged on the upper template and the lower template, the upper template is fixedly connected with a limiter for ensuring the working height of the die and playing a limiting role through a screw, and a storage limiter is arranged on the limiter;

the die cutter block and the punch cutter block are respectively fixed on a lower template and an upper template through screws and are matched with each other for blanking the plate, the lower template is fixedly connected with a polyurethane material pressing device and a reverse side plate through bolts, the polyurethane material pressing device is used for flattening the plate and offsetting the reverse side force, and a material support device and a guide plate are fixedly arranged on the upper template and are used for supporting the plate and preventing the plate from generating the side force during blanking;

the pressure plate is fixedly connected with the nitrogen spring through the top block, and forms a movable part with the nitrogen spring and the top block;

the width adjusting device is fixedly arranged at a plate inlet and positioned on the upper template and used for positioning and guiding according to the width of a plate, a handle is arranged at one end of the width adjusting device, a guard plate is fixedly arranged at the front end of the width adjusting device, and guide teeth and a material guide roller assembly used for guiding the plate are fixedly arranged at the two ends of the width adjusting device through guide tooth mounting seats.

Preferably, the tight guide pillar assembly and the bushing are respectively in interference fit with the lower template and the upper template and assembled together in a side wall anti-falling bolt mode.

Preferably, the width adjusting device comprises a coaxial orientation seat, a guide tooth adjusting slide block, a guide tooth mounting seat, a bearing mounting seat and a lead screw, wherein the two ends of the lead screw are fixedly connected with the guide tooth adjusting slide block, the coaxial orientation seat is fixedly arranged at the middle part of the lead screw, and the lead screw is close to one end of the handle and fixedly provided with the bearing mounting seat.

Preferably, the guide tooth adjusting slide block is provided with a thread with the same pitch as the lead screw.

Preferably, the material supporting device is provided with a roller.

Compared with the prior art, the invention has the beneficial effects that:

1. the guide plate and the reverse side plate are arranged, so that the lateral displacement of the plate in the stamping process is avoided, and meanwhile, the material pressing plate, the material support device and the nitrogen spring are arranged, so that the prepressing effect on the stamped plate is realized, the deflection of the plate is avoided, and the stamping precision and the material utilization rate are improved;

2. according to the invention, the tight guide pillar assembly and the bushing are arranged to provide accurate guide for the attachment of the upper die and the lower die, so that the accuracy error caused by the attachment is avoided, the stamping accuracy is further improved, and the purpose of saving materials is achieved.

Drawings

FIG. 1 is a schematic diagram of an upper mold plate structure according to the present invention;

FIG. 2 is a schematic structural view of a lower template of the present invention;

FIG. 3 is a side view of the lower template structure of the present invention.

In the figure: 1, 2, 3, 4 tight guide post components, 5 bushings, 6 width adjusting devices, 61 coaxial orientation seats, 62 guide tooth adjusting slide blocks, 63 guide tooth mounting seats, 64 bearing mounting seats, 65 lead screws, 7 material holders, 8 polyurethane material pressing devices, 9 handles, 10 guide plates, 11 guard plates, 12 guide teeth, 13 material guide roller components, 14 limiters, 15 storage limiters, 16 nitrogen springs, 17 stripper plate screws, 18 ejector blocks, 19 female die cutter blocks, 20 male die cutter blocks, 21 reverse side plates and 22 pressure plate guide post components.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides a technical solution:

An upper template 1 and a lower template 2 which are respectively and fixedly arranged on corresponding production equipment through U grooves, a feeding device conveys a plate material to be blanked to the upper template 1, the lower template 2 moves downwards to the upper template 1, and then the plate material is blanked, a tight guide pillar component 4 and a bush 5 for accurate guiding are respectively arranged on the upper template 1 and the lower template 2, the tight guide pillar component 4 and the bush 5 are respectively in interference fit with the lower template 2 and the upper template 1 and are assembled together in a side wall anti-drop bolt mode, the tight guide pillar component 4 and the bush 5 can ensure the movement precision of the lower template 2 and ensure the blanking precision, a limiter 14 for ensuring the working height of a die and playing a limiting role is fixedly connected to the upper template 1 through a screw, the phenomenon that the movement distance of the lower template 2 is too large, equipment and a cutter are damaged is avoided, and a storage limiter 15 is arranged on the limiter 14, when the device is not in a working state, the elastic element is protected, and the device can be directly placed on the limiter 14;

the die cutter block 19 and the punch cutter block 20 are respectively fixed on the lower template 2 and the upper template 1 through screws and are matched with each other for blanking the plate material, the lower template 2 is fixedly connected with a polyurethane material pressing device 8 and a reverse side plate 21 through bolts, the polyurethane material pressing device is used for flattening the plate material and offsetting reverse side force, the upper template 1 is fixedly provided with a material support device 7 and a guide plate 10, the material support device 7 is used for supporting the plate material and preventing the plate material from generating side force during blanking, and the material support device 7 is provided with a roller wheel which can prevent raw materials from being scratched;

the pressure plate 3 is fixedly connected with the nitrogen spring 16 through the top block 18, and forms a movable part with the nitrogen spring 16 and the top block 18, the pressure plate 3 is pressed by the aid of an elastic element to play a role in controlling the displacement of the plate, the nitrogen spring 16 is fixedly arranged on the lower template 2, and a stripper plate screw 17 and a pressure plate guide post assembly 22 which are respectively used for limiting and guiding the pressure plate 3 are fixedly connected to the pressure plate 3;

the width adjusting device 6 is fixedly arranged at a plate material inlet and is positioned on the upper template 1 and used for positioning and guiding according to the width of a plate material, one end of the width adjusting device 6 is provided with a handle 9, the front end of the width adjusting device 6 is fixedly provided with a guard plate 11, and two ends of the width adjusting device 6 are fixedly provided with guide teeth 12 and a material guide roller assembly 13 which are used for guiding the plate material through a guide tooth mounting seat 63. The width adjusting device 6 comprises a coaxial directional base 61, a guide tooth adjusting slide block 62, a guide tooth mounting base 63, a bearing mounting base 64 and a lead screw 65, wherein the two ends of the lead screw 65 are fixedly connected with the guide tooth adjusting slide block 62, the coaxial directional base 61 is fixedly arranged in the middle of the lead screw 65, the lead screw 65 is fixedly provided with the bearing mounting base 64 close to one end of the handle 9, and the guide tooth adjusting slide block 62 is provided with threads with the same thread pitch as the lead screw 65.

The working principle is as follows: according to the positions of U-shaped grooves of an upper die plate and a lower die plate of the die, the die is installed on corresponding production equipment, the die is opened, a storage limiting stopper 15 is taken down, a lead screw 65 is adjusted through a handle 9, the working width of a guide tooth 12 meets the specified size requirement, then a sheet is introduced through the guide tooth 12 by feeding equipment, secondary correction is carried out by a material guide roller assembly 13, a material supporting device 7 carries out auxiliary support, the sheet is ensured to have a safe distance of 5mm with the working surface of a female die knife edge 19, the effect that the sheet is not scratched is obtained, finally the sheet is fed to the specified distance (the distance is ensured by the feeding equipment), the upper portion of the die vertically moves downwards along with stamping equipment, a lining 5, a precise guide pillar assembly 4, a guide plate 10 and a reverse side block 21 move in a sliding fit mode, the. The material pressing plate 3 and the polyurethane material pressing device 8 are used for prepressing the plate material, so that the plate material is attached to the working surface of the female die cutter block 19 through the return stroke of the material supporting device 7, the blanking is waited, the upper part of the die continues to move vertically downwards, the material pressing plate 3 moves upwards along the guide pillar assembly 22 of the material pressing plate, force is transmitted to the nitrogen spring 16 through the ejector block 18, the nitrogen spring returns, the working surface of the male die cutter block 19 is higher than the working surface of the material pressing plate 3 and then works in cooperation with the female die cutter block 20, and the plate material is blanked. After the sheet material is blanked, the upper die plate 2 contacts with the stopper 14, the rated working height of the male die cutter block 19 and the female die cutter block 20 is guaranteed, damage to the cutter block caused by over-deep working is avoided, the work is finished, in the return stroke of the stamping equipment, the nitrogen spring 16 on the upper portion of the die restores the initial working state, force is transmitted back to the pressure plate 3 through the ejector block 18, the limiting surface of the screw through hole of the upper die plate 2 through the stripper plate screw 17 is limited, the working surface of the pressure plate 3 is higher than that of the male die cutter block 19, preparation is made for entering the next blanking again, and therefore fast and large-batch production work is achieved.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a sawtooth blanking mould is cut out to sheet material suit for the blanking has the car sheet material of cockscomb structure, its characterized in that: comprises that

The device comprises an upper template (1) and a lower template (2), wherein the upper template (1) and the lower template (2) are respectively and fixedly arranged on corresponding production equipment through U grooves, a tight guide pillar assembly (4) and a bushing (5) for accurate guiding are respectively arranged on the upper template (1) and the lower template (2), the upper template (1) is fixedly connected with a limiter (14) for ensuring the working height of a die and playing a limiting role through screws, and a storage limiter (15) is arranged on the limiter (14);

the punching die comprises a female die cutter block (19) and a male die cutter block (20), wherein the female die cutter block and the male die cutter block are respectively fixed on a lower template (2) and an upper template (1) through screws and are matched with each other for punching a plate material, the lower template (2) is fixedly connected with a polyurethane material pressing device (8) and an opposite side plate (21) through bolts, the polyurethane material pressing device is used for flattening the plate material and offsetting the opposite side force, and a material support device (7) and a guide plate (10) which are used for supporting the plate material and preventing the plate material from being punched to generate a side force are fixedly arranged on the;

the pressing plate (3) is fixedly connected with the nitrogen spring (16) through a top block (18) and forms a movable part with the nitrogen spring (16) and the top block (18), the nitrogen spring (16) is fixedly arranged on the lower template (2), and a discharging plate screw (17) and a pressing plate guide post assembly (22) which are respectively used for limiting and guiding the pressing plate (3) are fixedly connected to the pressing plate (3);

the width adjusting device (6) is fixedly arranged at a plate inlet and is positioned on the upper template (1) and used for positioning and guiding according to the width of a plate, one end of the width adjusting device (6) is provided with a handle (9), the front end of the width adjusting device (6) is fixedly provided with a guard plate (11), and two ends of the width adjusting device (6) are fixedly provided with guide teeth (12) and a material guide roller assembly (13) which are used for guiding the plate through guide tooth mounting seats (63).

2. The blanking die for the plate suit cutting saw teeth as claimed in claim 1, wherein: the tight guide pillar assembly (4) and the bushing (5) are in interference fit with the lower template (2) and the upper template (1) respectively and assembled together in a side wall anti-falling bolt mode.

3. The blanking die for the plate suit cutting saw teeth as claimed in claim 1, wherein: width adjustment device (6) are including coaxial orientation seat (61), lead tooth adjusting block (62), lead tooth mount pad (63), bearing mount pad (64), lead screw (65) both ends fixed connection leads tooth adjusting block (62), coaxial orientation seat (61) is fixed to be set up in lead screw (65) middle part, lead screw (65) are close to one end fixed mounting bearing mount pad (64) of handle (9).

4. The blanking die for the plate suit cutting saw teeth as claimed in claim 3, wherein: the guide tooth adjusting slide block (62) is provided with threads with the same thread pitch as the screw rod (65).

5. The blanking die for the plate suit cutting saw teeth as claimed in claim 1, wherein: and the material supporting device (7) is provided with a roller.