Progressive die for long-strip multi-hole hardware workpiece

Abstract

The utility model relates to the technical field of stamping dies, in particular to a strip multi-hole hardware workpiece progressive die, which is used for processing a material belt into a plurality of strip multi-hole hardware workpieces and comprises an upper die main body and a lower die main body which are matched with each other in a stamping manner, a pre-filling die, a punching die, a fine blanking die, a burr die and a shaping die which are used for sequentially punching a material belt are divided between the upper die main body and the lower die main body; an isolation hole punching male die and a first trimming male die are arranged before a workpiece is punched to smartly punch a trimming part which finally needs to be cut off on a material belt, so that the trimming part forms a connecting structure which is only formed by spacing an isolation hole and a trimming notch; and the connecting structure forms two structures which are consistent in length and are uniformly distributed, so that the force can be effectively decomposed, and the firmness of connection and more efficient isolation between the adjacent forming parts are ensured.

Description

TECHNICAL FIELD

[0001] The utility model relates to punch mould technical field especially is involved in a kind of long strip multi-hole hardware workpiece progressive die. BACKGROUND

[0002] In the processing field of hardware workpiece, for the hardware workpiece of long strip multi-hole site and with certain thickness, long strip material belt is usually used as starting raw material, when processing, material belt is first handled by leveling machine to ensure its flatness, then enters progressive die to carry out subsequent processing procedures, such as punching, punching type and other stamping, cutting operation.

[0003] However, in actual processing process, this traditional processing mode exposes obvious defects, when long strip plate is subjected to multi-hole stamping processing, plate is prone to excessive drawing phenomenon in its length direction. This drawing problem can seriously affect the processing quality of adjacent hardware workpieces during stamping process. For example, it can cause the hole precision of adjacent workpieces to decrease, size deviation, and the profile of punching type can also become irregular, which cannot meet the production requirements of high precision. Moreover, once this quality problem occurs, subsequent assembly and other procedures will also be affected, increasing the scrap rate, improving production cost, reducing production efficiency, which is not conducive to enterprises to maintain advantage in market competition.

[0004] Therefore, it is necessary to provide an improved technical scheme to solve the above problems. CONTENT OF UTILITY MODEL

[0005] The utility model aims at providing a technical scheme capable of solving the above problems.

[0006] A kind of long strip multi-hole hardware workpiece progressive die, for processing material belt into multiple long strip multi-hole hardware workpieces, including the upper die body and lower die body of each other stamping cooperation, pre-charging mould, punching die, fine punching die, burr die and shaping die for sequentially stamping material belt are divided between the upper die body and lower die body, punch isolation hole punch, first edge cutting punch, second edge cutting punch and workpiece processing punch are provided on the upper die body, the recess die of punch isolation hole punch, first edge cutting punch, second edge cutting punch and workpiece processing punch is provided on the lower die body;Punch isolation hole punch and first edge cutting punch are both arranged in pre-charging mould, second edge cutting punch is arranged in shaping die, workpiece processing punch has multiple, multiple workpiece processing punches are distributed on pre-charging mould, punching die, fine punching die, burr die and shaping die;

[0007] The material belt is divided into the cutting edge part and the forming part by the first cutting edge punch and the second cutting edge punch, the punching isolation hole punch is used for punching the isolation hole on the cutting edge part, the first cutting edge punch is used for punching two cutting edge notches on both sides of the cutting edge part, and the second cutting edge punch is used for cutting off the cutting edge part completely.

[0008] Preferably, the workpiece machining punch comprises a workpiece pre-punching punch, a workpiece punching punch, a workpiece fine-punching punch, a workpiece burr pressing punch and a workpiece shaping punch, and the workpiece pre-punching punch, the workpiece punching punch, the workpiece fine-punching punch, the workpiece burr pressing punch and the workpiece shaping punch are arranged on the pre-filling die, the punching die, the fine-punching die, the burr die and the shaping die respectively.

[0009] Preferably, the cutting edge part has a partition part and extension parts located on both sides of the partition part, and the extension parts are extended at both ends, so that the partition part and the extension parts form a cutting edge part with a H-shaped structure.

[0010] Preferably, the isolation hole punched by the punching isolation hole punch is a square structure, the isolation hole is located on the partition part, the cutting edge notch is located on the extension part, and the isolation hole and the cutting edge notch are both spaced apart from the connecting line of the cutting edge part and the forming part.

[0011] Preferably, the upper die body is sequentially provided with an upper die fixing plate, a stop plate, an upper clamping plate, an upper pad plate and a demolding plate from top to bottom, and the lower die body is sequentially provided with a concave die plate, a lower pad plate and a lower die fixing plate from top to bottom, wherein the punching isolation hole punch, the first cutting edge punch, the second cutting edge punch and the workpiece machining punch are fixed on the upper die body through the upper clamping plate, and the concave die is fixed on the lower die body through the concave die plate.

[0012] Compared with the prior art, the utility model has the advantages of:

[0013] By setting the punching isolation hole punch and the first cutting edge punch before punching the workpiece, the cutting edge part that needs to be finally cut off on the material belt is cleverly punched, so that the cutting edge part forms a connecting structure only having the isolation hole and the cutting edge notch spaced apart, after the isolation hole and the cutting edge notch are opened, the connecting structure forms two structures with the same length and uniform distribution, can effectively decompose the force, ensures the firmness of the connection between adjacent forming parts and more efficient isolation, in the subsequent stamping operation process, the two adjacent forming parts are connected through the connecting structure, in the punching process, the two adjacent forming parts can be efficiently isolated and will not interfere with each other and accumulate errors, in this way, the regularity of the processed hardware workpiece shape is greatly ensured, so that each workpiece can meet the accurate design size and shape requirements, and the stability of product quality is improved.

[0014] The additional aspects and advantages of the present application will be given partly in the following description, and partly will become obvious from the following description, or will be understood by those skilled in the art through practice of the present application. BRIEF DESCRIPTION OF DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed to be used in the following embodiment or prior art description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative labor on the basis of these drawings.

[0016] Figure 1 is a structural schematic diagram of the present application;

[0017] Figure 2 is a sectional structural schematic diagram of the present application;

[0018] Figure 3 is a layout drawing of the material belt in the pre-filling die area, the punching die area and the fine punching die area in the processing process, and the positions of the punching isolation hole punch and the first trimming punch are disclosed on the layout drawing;

[0019] Figure 4 is a layout drawing of the material belt in the burr die area and the shaping die area in the processing process;

[0020] Figure 5 is a structural schematic diagram of the present application Figure 3 A place;

[0021] Figure 6 is a structural schematic diagram of the present application Figure 3 B place.

[0022] The reference signs and names in the drawings are as follows:

[0023] Trimming part 1, forming part 2, isolation hole 3, trimming notch 4, partition part 5, extension part 6, upper die main body 10, upper die fixed plate 11, stop plate 12, upper clamping plate 13, upper pad plate 14, demolding plate 15, lower die main body 20, concave die plate 21, lower pad plate 22, lower die fixed plate 23, pre-filling die 31, punching die 32, fine punching die 33, burr die 34, shaping die 35, punching isolation hole punch 41, first trimming punch 42, second trimming punch 43, workpiece machining punch 44, workpiece pre-punching punch 441, workpiece punching punch 442, workpiece fine punching punch 443, workpiece burr pressing punch 444, workpiece shaping punch 445, concave die 45. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the utility model will be clearly and completely described below, obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor belong to the protection scope of the utility model.

[0025] Please refer to Figures 1-6 The utility model discloses an embodiment, propose a kind of long strip multi-hole hardware workpiece progressive die, for processing material belt into multiple long strip multi-hole hardware workpiece, including mutually stamping cooperation's upper die body 10 and lower die body 20, between upper die body 10 and lower die body 20, pre-charging die 31, punching die 32, fine punching die 33, burr die 34 and shaping die 35 for material belt are successively stamped and are divided, on upper die body 10, punch isolation hole punch 41, first trimming punch 42, second trimming punch 43 and workpiece processing punch 44 are provided, lower die body 20 is provided with recess die 45, which is connected to punch isolation hole punch 41, first trimming punch 42, second trimming punch 43 and workpiece processing punch 44;Punch isolation hole punch 41 and first trimming punch 42 are all arranged in pre-charging die 31, second trimming punch 43 is arranged in shaping die 35, workpiece processing punch 44 has multiple, multiple workpiece processing punch 44 is distributed on pre-charging die 31, punching die 32, fine punching die 33, burr die 34 and shaping die 35;

[0026] Among them, material belt is divided into trimming part 1 and forming part 2 by the processing of first trimming punch 42 and second trimming punch 43 and is successively distributed in error, punch isolation hole punch 41 is used for punching isolation hole 3 on trimming part 1, first trimming punch 42 is used for punching two trimming notches 4 spaced apart from isolation hole 3 on the both sides of trimming part 1, second trimming punch 43 is used for cutting trimming part 1 completely, that is, second trimming punch 43 covers the whole trimming part 1.

[0027] In the above technical scheme, material belt is successively through these several different function die areas in progressive die, pre-charging die 31 first carries out preliminary treatment to material belt, prepares for subsequent stamping;Punching die 32 is responsible for punching various hole positions required by hardware workpiece;Fine punching die 33 further accurately stamps hole position and workpiece shape, improves accuracy;Burr die 34 is used for removing burr generated in stamping process, so that workpiece edge is smoother;Shaping die 35 adjusts and perfects the last overall shape of workpiece, and cuts workpiece from material belt, completes stamping and demolding operation of workpiece, in the whole process, the conveying of material belt is completed by the feeding device before the leveling machine or other feeding devices, and the guided movement of material belt can be positioned by the structure of side positioning in die or the cooperation of punch pilot hole and pin.

[0028] By setting the punch isolation hole punch 41, the first trimming punch 42, the second trimming punch 43 and the workpiece processing punch 44 on the upper die body 10, and the corresponding female die 45 on the lower die body 20, during the stamping process, the upper die body 10 moves downward, and the various punches on it are matched with the female die 45 of the lower die body 20, which exerts pressure on the material belt to make it plastically deform, thereby completing the corresponding processing procedure; the matching structure of the upper and lower die bodies 20 is the key to realize continuous stamping processing, which ensures uniform force transmission and accurate action in each stamping action, so that the material belt can be accurately processed into the required hardware workpiece shape according to the design requirements, and also facilitates the manufacture, installation and maintenance of the mold.

[0029] By setting the punch isolation hole punch 41 and the first trimming punch 42 before punching the workpiece, the final cut edge part 1 to be cut off on the material belt is cleverly punched and cut, so that the cut edge part 1 forms a connecting structure only with the isolation hole 3 and the cut edge notch 4 spaced apart, and in the subsequent stamping operation process, the two adjacent formed parts 2 are connected through this connecting structure, and in the cutting process, the two adjacent formed parts 2 can be efficiently isolated and will not interfere with each other and accumulate errors, so as to greatly ensure the regularity of the hardware workpiece shape after processing, so that each workpiece can meet the accurate design size and shape requirements, and improve the stability of product quality. In addition, the setting of the isolation hole 3 and the cut edge notch 4 can also assist the cutting of the cut edge part 1 by the second trimming punch 43 to a certain extent.

[0030] Please refer to Figure 2On the basis of the above technical scheme, it is further proposed that the workpiece machining punch 44 comprises a workpiece pre-punching punch 441, a workpiece punching punch 442, a workpiece fine punching punch 443, a workpiece burr pressing punch 444, and a workpiece shaping punch 445, and the workpiece pre-punching punch 441, the workpiece punching punch 442, the workpiece fine punching punch 443, the workpiece burr pressing punch 444, and the workpiece shaping punch 445 are respectively arranged on the pre-filling die 31, the punching die 32, the fine punching die 33, the burr die 34, and the shaping die 35. The workpiece machining punch 44 is further subdivided into the workpiece pre-punching punch 441, the workpiece punching punch 442, the workpiece fine punching punch 443, the workpiece burr pressing punch 444, and the workpiece shaping punch 445, and they are respectively accurately arranged on the pre-filling die 31, the punching die 32, the fine punching die 33, the burr die 34, and the shaping die 35. When the material belt passes through each die area in turn, the specific workpiece machining punch 44 of the corresponding die area cooperates with the concave die 45 of the lower die body 20 to work. For example, in the pre-filling die 31 stage, the workpiece pre-punching punch 441 first performs a preliminary punching operation on the material belt, laying a foundation for subsequent punching and other processes; in the punching die 32 area, the workpiece punching punch 442 punches out more accurate hole positions according to design requirements; the workpiece fine punching punch 443 in the fine punching die 33 area performs more fine punching and perfecting on the hole positions and the workpiece shape; in the burr die 34 area, the workpiece burr pressing punch 444 is responsible for removing the burrs generated by punching, making the workpiece edges smoother; finally, in the shaping die 35 area, the workpiece shaping punch 445 performs the last adjustment and optimization on the overall shape of the workpiece. This detailed setting makes the machining process of the hardware workpiece more refined and specialized, and each stage has a special punch responsible for a specific machining task, which can accurately process the material belt according to the characteristics and requirements of different processes, not only improving the machining precision and ensuring the accuracy of the hole positions, the regularity of the shape, and the smoothness of the edges, but also making the entire machining process more orderly and efficient, which helps to improve production efficiency, reduce waste, and meet the demand for large-scale, high-quality production of long strip multi-hole hardware workpieces.

[0031] Referring to Figures 5-6 On the basis of the above technical scheme, it is further proposed that the edge cutting part 1 has a partition part 5 and extension parts 6 located on both sides of the partition part 5, and the extension parts 6 are extended at both ends to form a I-shaped edge cutting part 1 together with the partition part 5; the I-shaped edge cutting part 1 is mainly determined according to the shape of the formed hardware workpiece, and the two ends of the formed hardware workpiece will form a certain protruding structure, so the use of this I-shaped structure can save materials to the greatest extent. In this embodiment, the isolation hole 3 cut by the isolation hole punch 41 is a square structure, the isolation hole 3 is located on the partition part 5, the edge cutting notch 4 is located on the extension part 6, and the isolation hole 3 and the edge cutting notch 4 are both spaced apart from the connecting line of the edge cutting part 1 and the forming part 2.

[0032] Referring toFigures 1-2 On the basis of the above technical solutions, further proposed that the upper die body 10 is sequentially provided with an upper die fixed plate 11, a stop plate 12, an upper clamp plate 13, an upper pad plate 14 and a demolding plate 15 from top to bottom, and the lower die body 20 is sequentially provided with a concave die plate 21, a lower pad plate 22 and a lower die fixed plate 23 from top to bottom, wherein the punch isolation hole punch 41, the first trimming punch 42, the second trimming punch 43 and the workpiece machining punch 44 are fixed on the upper die body 10 through the upper clamp plate 13, and when installed, these punches are accurately installed to the corresponding positions of the upper clamp plate 13, and then the upper clamp plate 13 is firmly fixed on the corresponding parts of the upper die body 10 through bolts and other connecting members, so that the punches can move up and down with the upper die body 10 in the stamping process, accurately cooperate with the concave die 45 on the lower die body 20 for stamping operation. The concave die 45 is fixed on the lower die body 20 through the concave die plate 21, which stably fixes the concave die 45 in the lower die body 20 by means of bolt connection, so as to ensure accurate cooperation with the punch of the upper die body 10 in the stamping process, bear the stamping pressure from the punch, and make the material belt plastically deform under the action of the concave die 45 and the punch, complete the corresponding machining process.

[0033] It is obvious for those skilled in the art that the present application is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or essential characteristics of the present application. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting, and the scope of the present application is defined by the appended claims rather than the above description, and therefore all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present application.

Claims

1. A continuous die for a long porous hardware workpiece, used for processing a material strip into a plurality of long porous hardware workpieces, characterized in that: The utility model relates to a stamping die for material belt, which comprises an upper die body (10) and a lower die body (20) that are matched with each other, and is provided with a pre-filling die (31), a punching die (32), a fine stamping die (33), a burr die (34) and a shaping die (35) for sequentially stamping a material belt between the upper die body (10) and the lower die body (20), and is provided with a punch (41) for punching an isolation hole, a first trimming punch (42), a second trimming punch (43) and a workpiece processing punch (44) on the upper die body (10), and is provided with a recess (45) matched with the punch (41) for punching an isolation hole, the first trimming punch (42), the second trimming punch (43) and the workpiece processing punch (44) on the lower die body (20). The material belt is divided into a trimming part (1) and a shaping part (2) that are distributed in sequence and are offset from each other through the processing of the first trimming punch (42) and the second trimming punch (43), the punch (41) for punching an isolation hole is used for punching an isolation hole (3) on the trimming part (1), the first trimming punch (42) is used for punching two trimming notches (4) that are spaced apart from the isolation hole (3) on both sides of the trimming part (1), and the second trimming punch (43) is used for completely trimming off the trimming part (1).

2. The continuous die for a long perforated hardware workpiece according to claim 1, wherein The workpiece processing punch (44) comprises a workpiece pre-punching punch (441), a workpiece punching punch (442), a workpiece fine stamping punch (443), a workpiece burr pressing punch (444) and a workpiece shaping punch (445), and the workpiece pre-punching punch (441), the workpiece punching punch (442), the workpiece fine stamping punch (443), the workpiece burr pressing punch (444) and the workpiece shaping punch (445) are arranged on the pre-filling die (31), the punching die (32), the fine stamping die (33), the burr die (34) and the shaping die (35) respectively.

3. The continuous die for a long perforated hardware workpiece according to claim 1, wherein The trimming part (1) has a partition part (5) and extension parts (6) located on both sides of the partition part (5), and the extension parts (6) are extended at both ends, so that the partition part (5) and the extension parts (6) jointly form a trimming part (1) in the shape of an I-beam.

4. The continuous die for a long perforated hardware workpiece according to claim 3, wherein The isolation hole (3) punched by the punch (41) for punching an isolation hole is in the shape of a square, the isolation hole (3) is located on the partition part (5), the trimming notches (4) are located on the extension parts (6), and the isolation hole (3) and the trimming notches (4) are both spaced apart from the connecting lines of the trimming part (1) and the shaping part (2) by gaps.

5. The continuous die for a long perforated hardware part according to claim 1, wherein The upper die main body (10) is sequentially provided with an upper die fixing plate (11), a stop plate (12), an upper clamping plate (13), an upper pad plate (14) and a demolding plate (15) from top to bottom, the lower die main body (20) is sequentially provided with a concave die plate (21), a lower pad plate (22) and a lower die fixing plate (23) from top to bottom, wherein the punch isolation hole punch (41), the first edge cutting punch (42), the second edge cutting punch (43) and the workpiece machining punch (44) are fixed on the upper die main body (10) through the upper clamping plate (13), and the concave die (45) is fixed on the lower die main body (20) through the concave die plate (21).

Images