CN210450512U

CN210450512U - Die-cut structure of T type cross-section waste material

Info

Publication number: CN210450512U
Application number: CN201921135193.6U
Authority: CN
Inventors: 李雪
Original assignee: Guangzhou Minshi Auto Parts Co ltd
Current assignee: Guangzhou Minshi Auto Parts Co ltd
Priority date: 2019-07-18
Filing date: 2019-07-18
Publication date: 2020-05-05
Anticipated expiration: 2029-07-18

Abstract

The utility model discloses a die-cut structure of T type cross-section waste material, including lower plate and upper plate, the up end of lower plate is provided with the lower mould and inserts, lower mould sword piece and side pressure subassembly, the lower terminal surface of upper plate is equipped with the fixed plate, press the flitch, go up the sword piece and order about the slide wedge drive block of side pressure subassembly along horizontal migration, it includes installation end and guide portion to go up the sword piece, the junction of installation end and guide portion upwards caves in into the catching groove, the minimum of catching groove is equipped with first cutting edge, the both ends of catching groove form the second cutting edge that is the slope form respectively with the side phase convergence back of installation end, the minimum point of second cutting edge is connected with first cutting edge, the cutting edge of first cutting edge and lower mould sword piece is corresponding, be provided with first groove on the side pressure subassembly, form the third cutting edge with the corresponding position of second cutting edge in the lateral wall upper portion of first groove. The utility model discloses accomplish die-cut on a process with the waste material that the cross-section is the T type, guarantee the quality of cutting edge, rationally optimize the process, reduce mould quantity, personnel and production facility and drop into.

Description

Die-cut structure of T type cross-section waste material

Technical Field

The utility model relates to a die-cut structure, especially a die-cut structure of T type cross-section waste material in the automobile parts production research field.

Background

With the improvement of living standard, the automobile sales volume is larger and larger, people have stricter and stricter requirements on the appearance of the automobile, and as is well known, the automobile is composed of parts, so how to improve the production efficiency of the automobile parts and ensure the quality of the parts is a matter required by each automobile part manufacturer at present.

The metal stamping parts are important components of automobiles, some of which have complicated cross sections due to the requirements of automobile body assembly, automobile body strength and beauty, and the forming process of the metal stamping parts is that flat plates are rolled and bent to obtain semi-finished products, then holes and edges in the semi-finished products have local shapes and are stamped to obtain finished products, wherein the cross sections of the edges needing to be cut off are T-shaped, and if the automobile door frame is provided with upper strips, the surfaces needing to be cut off are appearance surfaces, and the requirement on the cutting quality is high.

In the prior art, when T-shaped waste materials in a stamping part product are cut off, the T-shaped waste materials are generally cut off in two to three procedures, the large surface of the product to be cut off is downward firstly, the stamping direction is perpendicular to the surface of the surface, a pressure plate is pressed to cut off two sides, then the stamping direction is perpendicular to the other surface by rotating 90 degrees, the pressure plate is pressed, and the root part is repaired.

The prior art has the following defects:

① the sideline of the product is finished by several processes, and a cutter needs to be arranged at the lap joint between the processes, so the finished product can leave cutter marks to influence the product quality.

②, the trimming and sequencing are multiple, which occupies the die space, causes other procedures not to be arranged on one die, and additionally increases the die, and increases the die development and maintenance cost.

③ is slow when more products are produced, and the more time is required for producing the same amount of products, the lower the productivity.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a die-cut structure of T type cross-section waste material accomplishes die-cut on a process with the waste material that the cross-section is the T type, guarantees the quality of cutting edge, rationally optimizes the process, reduces mould quantity, personnel and production facility and drops into.

The utility model provides a solution of its technical problem is: a waste punching structure with a T-shaped section comprises a lower bottom plate and an upper bottom plate, wherein a lower die insert, a lower die cutter block arranged on the lower die insert and a side pressure assembly for fixing a product in the horizontal direction are arranged on the upper end surface of the lower bottom plate, a fixing plate, a pressure plate, an upper die cutter block and a wedge driving block for driving the side pressure assembly to move horizontally are arranged on the lower end surface of the upper bottom plate, the upper die cutter block comprises a mounting end fixed on the fixing plate and a guide portion far away from the fixing plate, a hook groove is formed at the joint of the mounting end and the guide portion in an upward and inward sinking mode, a first cutting edge is arranged at the lowest point of the hook groove, two ends of the hook groove respectively converge with the side surface of the mounting end to form a second cutting edge in an inclined mode, the lowest point of the second cutting edge is connected with the first cutting edge, the first cutting edge corresponds to the cutting edge of the lower die cutter block, and a first groove for the, the third blade is formed at a position corresponding to the second blade in the upper portion of the side wall of the first groove.

As a further improvement of the above technical scheme, the side pressure assembly comprises a guide block arranged on the lower base plate and a wedge slide block reciprocating along the guide block, a first return spring is arranged between the wedge slide block and the lower die insert, the first groove is arranged at one end of the wedge slide block close to the lower die cutter block, a limit block is arranged on the outer side of the wedge slide block, and a first space for the wedge drive block to move in the vertical direction is formed between the limit block and the wedge slide block.

As a further improvement of the above technical solution, two sides of the guide block are respectively provided with an adjusting block, the adjusting block is provided with an L-shaped cover plate, the cover plate includes a first portion parallel to the adjusting block and a second portion perpendicular to the adjusting block, and one end of the second portion extends into a limiting groove at the lower portion of the wedge slider.

As a further improvement of the technical scheme, a second return spring and a guide post are arranged between the fixing plate and the material pressing plate.

As a further improvement of the above technical solution, the first blade is a bevel blade, and the second blade is a 45 ° sharp blade.

The utility model has the advantages that: the utility model discloses a put the product on the lower mould sword piece, the upper plate is down, the slide wedge drive block orders about the side pressure subassembly and compresses tightly the product along the horizontal direction, the waste material excision of second cutting edge with finished product facade upper portion, extrude the waste material toward the lateral wall direction in first groove, it is once die-cut to form, can form the secondary die-cut with lower mould sword piece when first sword contact root waste material, continue down the motion, go up the sword piece, lower mould sword piece and third cutting edge are cuted the waste material, until cutting off the waste material is whole. The utility model discloses accomplish die-cut on a process with the waste material that the cross-section is the T type, guarantee the quality of cutting edge, rationally optimize the process, reduce mould quantity, personnel and production facility and drop into. When the plate is placed, the plate is roughly positioned through the lower die cutter block, in the moving process of the die, the wedge driving block drives the side pressure assembly to move and then the compression positioning is realized, the positioning is accurate and firm, and the product quality is stable.

Drawings

In order to more clearly illustrate the technical solution in the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly described below. It is clear that the described figures represent only some embodiments of the invention, not all embodiments, and that a person skilled in the art can also derive other designs and figures from these figures without inventive effort.

Fig. 1 is a schematic structural diagram of the present invention;

fig. 2 is a cross-sectional view of the present invention;

FIG. 3 is a schematic structural view of a middle and lower die cutter block and a lateral pressure assembly of the present invention;

fig. 4 is a schematic structural view of the middle upper die cutter block and the material pressing plate of the utility model.

Detailed Description

The conception, the specific structure, and the technical effects produced by the present invention will be clearly and completely described below in conjunction with the embodiments and the accompanying drawings to fully understand the objects, the features, and the effects of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and other embodiments obtained by those skilled in the art without inventive labor based on the embodiments of the present invention all belong to the protection scope of the present invention. In addition, all the coupling/connection relationships mentioned herein do not mean that the components are directly connected, but mean that a better coupling structure can be formed by adding or reducing coupling accessories according to specific implementation conditions.

Referring to fig. 1 to 4, the present invention includes an upper mold portion and a lower mold portion.

The upper die part comprises an upper bottom plate 10 and a pressure plate 12, a limiting bolt 16 and a second return spring 15 which are distributed in a balanced manner are arranged in the pressure plate 12, the limiting bolt 16 is hung on the fixing plate 11 to limit the pressure plate 12 to move downwards, and the second return spring 15 provides necessary pressure force when compressed; four guide posts 17 are assembled at four corners of the fixed plate 11 and guide the material pressing plate 12, and the fixed plate 11 is locked on the upper bottom plate 10; the upper die cutter block 13 comprises a mounting end and a guide end, the joint of the mounting end and the guide part is sunken upwards to form a hook groove 19, the lowest point of the hook groove 19 is provided with a first cutter edge 20, specifically, the first cutter edge 20 is arranged in the length direction of the cutting edge of the upper die cutter block 13, the first cutter edge 20 is an inclined cutter edge, the height difference is larger than 1.5 times of the material thickness, and two ends of the hook groove 19 are respectively converged with the side surface of the mounting end to form an inclined second cutter edge 21; specifically, a plane with the thickness of more than or equal to 1 material is reserved in the width direction of the cutting edge of the upper die cutter block 13 to form a second cutting edge 21, the second cutting edge 21 is a 45-degree sharp cutter, the cutter back is higher than the cutting edge, when trimming is not started, the cutter back is guided into the lower die insert 2 for at least 5mm, the mounting end is tightly matched in the fixing plate 11 and locked on the upper base plate 10, a gap of 0.3-0.5 mm is reserved between the cutter back and the periphery of the pressure plate 12, and a wedge driving block 14 is arranged beside the upper die cutter block 13 and fixed on the upper base plate 10.

The first knife edge 20 is an oblique knife edge, the height difference is larger than 1.5 times of the material thickness, a plane which is larger than or equal to 1 material thickness is reserved in the width direction of the cutting edge of the upper die knife block 13 to form a second knife edge 21, the second knife edge 21 is a 45-degree sharp knife, the upper die knife block can extrude vertical face waste materials in the direction of the oblique wedge slide block during punching to form punching, the strength of the knife block can be effectively guaranteed, meanwhile, the oblique knife edge cuts off the waste materials step by step, the punching force is reduced, the service life of the knife block is prolonged, and the noise is reduced.

The lower die part comprises a lower bottom plate 1 and a lower die insert 2, balance blocks 4 are distributed on four corners, and second return springs 15 correspond to the balance blocks 4 one by one and are used for balancing the stress of the pressure plate 12; the lower die cutter block 3 is tightly matched in the lower die insert 2 and is locked and attached on the lower bottom plate 1. A wedge slide block 6 is arranged beside the lower die insert 2, the edge of the upper part of the side wall of the first groove body, which is contacted with the product waste, is made into a 90-degree cutting edge, the 90-degree cutting edge is a third cutting edge 22, a first return spring 19 is arranged in the wedge slide block 6, the other end of the first return spring 19 is propped against the lower die insert 2, a limiting block 7 is clamped in a key groove of the lower bottom plate 1, the horizontal retraction distance of the wedge slide block 6 is limited at the rear of the wedge slide block, and when the wedge drive block 14 moves downwards and is not contacted with the inclined surface of the wedge slide block 6, the back of the wedge drive block 14 and the limiting block 7; wedge slider 6 and dress lower guide 20 on lower plate 1, the apron 8 of distribution in wedge slider 6 both sides, apron 8 include with the parallel first portion 80 of adjusting block 9 and with adjusting block 9 vertically second portion 81, the one end of second portion 81 extends to the spacing inslot of wedge slider lower part, and adjusting block 9 leads between adjusting block 5 of tight fit in lower guide 20 with the tight, and wherein apron 8 restriction wedge slider 6 direction of height can not move, and adjusting block 9 is used for adjusting wedge slider 6 assembly machining error, and guide block 5 leads in wedge slider 6 keyway, and restriction wedge slider 6 can only the horizontal direction motion. Because the insert and the trimming knife block which move relatively are made of hard materials, one side of each sliding surface is provided with a cross oil groove. The first return spring 15 and the second return spring 19 are both rectangular springs.

When the upper die and the lower die are opened, the semi-finished product 18 is placed on the molded surface of the lower die insert 2, so that the large section of the waste to be punched is parallel to the punching direction to form a vertical surface, roughly positioning a semi-finished product 18 by the molded surface of a lower die insert 2, positioning a positioning hole or an end positioning plate in the length direction, starting a press machine, enabling an upper die part to start to move downwards, enabling the back surface of a wedge driving block 14 and a limiting block 7 to start guiding, then moving downwards, enabling the inclined surface of the wedge driving block 14 to start to contact the inclined surface of a wedge sliding block 6, driving the wedge sliding block 6 to move horizontally, in the movement process, the four guide posts 17 are inserted into the lower die insert 2 to start guiding, so that the punching precision of the upper die and the lower die is ensured, when the wedge driving block 14 and the wedge sliding block 6 move on the plane parallel to the punching direction, the wedge sliding block 6 stops moving horizontally, and the semi-finished product 18 is pressed by the wedge sliding block 6, so that the accurate positioning of the product is realized. The downward movement is continued, the pressure plate 12 contacts the semi-finished product 18, the second return spring 15 starts to compress, the back surface of the upper die cutter block 13 and the lower die insert 2 start to guide and then move downward, the second return spring 15 continues to compress to provide the pressure force required by the punching, the local cutting edge of the upper die cutter block 13 starts to contact the waste on the upper portion of the vertical surface of the semi-finished product 18, the sharp knife is an inclined surface and can extrude the waste in the direction of the wedge slide block 6 to form the primary punching, when the cutting edge of the upper die cutter block 13 contacts the waste on the root portion, the secondary punching can be formed with the lower die cutter block 3, the downward movement is continued, the upper die cutter block, the lower die cutter block and the third cutting edge shear the waste until the cutting of the waste is completed, the die is completed, the lateral force generated by the wedge slide block 6 in the process is offset by the limiting block 7, and the lateral force. The lateral force formed by punching can be effectively offset in the die, and the whole die carrier does not need to be additionally provided with a side-preventing mechanism.

While the preferred embodiments of the present invention have been described in detail, it will be understood by those skilled in the art that the invention is not limited to the details of the embodiments shown, but is capable of various modifications and substitutions without departing from the spirit of the invention.

Claims

1. The utility model provides a die-cut structure of T type cross-section waste material which characterized in that: comprises a lower bottom plate and an upper bottom plate, wherein the upper end surface of the lower bottom plate is provided with a lower die insert, a lower die cutter block arranged on the lower die insert and a side pressure assembly for fixing a product along the horizontal direction, the lower end surface of the upper bottom plate is provided with a fixed plate, a pressure plate, an upper die cutter block and a wedge driving block driving the side pressure assembly to move horizontally, the upper die cutter block comprises a mounting end fixed on the fixing plate and a guide part far away from the fixing plate, the joint of the mounting end and the guide part is sunken upwards to form a hook groove, the lowest point of the hook groove is provided with a first blade, two ends of the hook groove are respectively converged with the side surface of the mounting end to form a second blade which is inclined, the lowest point of the second blade is connected with the first blade, the first blade corresponds to the blade of the lower die cutter block, and a first groove for the upper die cutter block to pass through is formed in the side pressure assembly, and a third cutting edge is formed in the upper part of the side wall of the first groove and corresponds to the second cutting edge.

2. A T-section scrap blanking structure according to claim 1, characterized in that: the side pressure subassembly is including setting up the guide block on the bottom plate and along guide block reciprocating motion's slide wedge slider, be provided with first reset spring between slide wedge slider and the lower mould insert, first groove sets up the one end that is close to lower mould cutter block in the slide wedge slider, the slide wedge slider outside is provided with the stopper, form the first space that supplies the slide wedge drive block to remove along vertical direction between stopper and the slide wedge slider.

3. A T-section scrap blanking structure according to claim 2, characterized in that: the guide block both sides are provided with an adjusting block respectively, be provided with the apron of L form on the adjusting block, the apron includes the first portion parallel with the adjusting block and with adjusting block vertically second portion, the one end of second portion extends to the spacing inslot of slide wedge slider lower part.

4. A T-section scrap blanking structure according to claim 1, characterized in that: and a second return spring and a guide pillar are arranged between the fixed plate and the material pressing plate.

5. A T-section scrap blanking structure according to claim 1, characterized in that: the first cutting edge is an inclined cutting edge, and the second cutting edge is a sharp cutter with an angle of 45 degrees.