Progressive die for lower cover of power supply shell

Abstract

The utility model relates to the technical field of progressive dies, in particular to a power supply shell lower cover progressive die which comprises a progressive die body provided with a plurality of continuous stations. The multiple sections of continuous stations comprise a workpiece feeding station, a workpiece cutting station, a workpiece edge fracture punching station, a workpiece punching station and a workpiece separating station which are arranged in sequence, and cutting parts are arranged among the workpiece feeding station, the workpiece cutting station, the workpiece edge fracture punching station, the workpiece punching station and the workpiece separating station at intervals; after long-term use and test, the edge structure of the lower cover of the power supply shell of the computer host produced by adopting the scheme still keeps good stability and integrity, so that the quality and the reliability of the product are greatly improved; the size precision is effectively guaranteed, so that the power supply can be tightly assembled with internal electronic components, and the overall performance and reliability of the power supply are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of continuous moulds, in particular to a continuous mould for a lower cover of a power supply housing. Background Art

[0002] In the rapid development of the modern electronic information industry, computers, as an indispensable and important equipment, have continuously improved their performance and quality. As the power source of the computer, the manufacturing quality and performance of the computer housing have a key impact on the stable operation and safety of the power supply. The lower cover of the computer host power supply housing is usually produced using a continuous die stamping process to meet the needs of large-scale production and cost-effectiveness. With the increasing sophistication and functional diversification of computer host power supply designs, the edge structure of the lower cover of the power supply housing has become more and more complex, and edge designs with concave and convex structures, positioning structures, or cutting notches have appeared, such as Figure 1 As shown, however, the existing continuous die stamping technology generally adopts a method of directly cutting the edge at one time. This lower cover stamping process will cause a series of serious quality problems for the complex lower cover edge structure.

[0003] Due to the combined influence of many factors such as the complex flow characteristics of the material at the complex edge, the precision and wear degree of the mold, and the adaptability of the stamping process parameters, the edge of the lower cover is very prone to tearing during the stamping process. During the stamping process, the edge of the lower cover needs to be cut and punched out with a concave-convex structure or notch. The friction between the mold and the surface of the lower cover material is too large, the lubrication is insufficient, or the roughness of the mold surface is high. All these reasons will cause the surface of the material to be pulled, forming scratches and grooves, destroying the integrity and smoothness of the edge of the lower cover, thereby affecting the assembly firmness between the lower cover and the power supply housing, and even affecting the cutting position adjacent to the lower cover; more seriously, when stamping the lower cover with a complex edge structure, the edge is sometimes pressed out with residual notches. These residual notches seriously damage the structural integrity and strength of the lower cover, and greatly reduce the sealing performance of the power supply housing. In this regard, it is necessary to propose an improved technical solution to solve the above-mentioned problems. Utility Model Content

[0004] The utility model aims to overcome the above-mentioned shortcomings and provide a technical solution that can solve the above-mentioned problems.

[0005] A power supply housing lower cover continuous die, comprising a continuous die main body, on which a plurality of continuous stations are arranged, the plurality of continuous stations comprising a workpiece feeding station, a workpiece cutting station, a workpiece edge breaking and punching station, a workpiece punching station and a workpiece separating station arranged in sequence, and cutting parts are arranged at intervals between the workpiece feeding station, the workpiece cutting station, the workpiece edge breaking and punching station, the workpiece punching station and the workpiece separating station;

[0006] The continuous die body comprises an upper die assembly and a lower die assembly, wherein the upper die assembly is provided with a notching convex module, a fracture punching convex module, a punching convex module and a separation convex module, and the lower die assembly is provided with corresponding blanking grooves at positions corresponding to the notching convex module, the punching convex module and the separation convex module, and the lower die assembly is provided with a first concave die groove at a position corresponding to the fracture punching convex module; wherein,

[0007] The cutting convex modules are two flat and parallel groups, one of which is arranged at the cutting position between the workpiece feeding station and the workpiece cutting station, and the other is arranged at the workpiece cutting station;

[0008] The fracture punching convex module is arranged on the fracture punching station at the edge of the workpiece, and the fracture punching convex module acts on the position between the workpiece after being cut by the two cutting convex modules;

[0009] The punching convex module is arranged on the workpiece punching station, and the punching convex module acts on the position of the workpiece after being punched by the breaking punching convex module;

[0010] The separation convex module is arranged at the cutting position between the workpiece punching station and the workpiece separation station, and is used for cutting out the workpiece.

[0011] Preferably, the cutting part has a first workpiece cutting line and a second workpiece cutting line, the separating convex module corresponds to the first workpiece cutting line and the second workpiece cutting line, and one side of the cutting convex module located on the cutting part coincides with the first workpiece cutting line and the other side is spaced apart from the second workpiece cutting line.

[0012] Preferably, the length of the cutout convex module located at the cutting position is greater than that of the other cutout convex modules.

[0013] Preferably, a clearance portion is provided on the separation convex module, the clearance portion corresponds to the first workpiece cutting line, and the clearance portion corresponds to the incision convex module on the cutting position.

[0014] Preferably, the multi-stage continuous workstations also include a workpiece edge recessing punching station, and the workpiece separating station includes a middle workpiece separating station and a side workpiece separating station, the workpiece edge recessing punching station is arranged between the middle workpiece separating station and the side workpiece separating station, and a cutting position is also arranged between the middle workpiece separating station, the workpiece edge recessing punching station and the side workpiece separating station; the upper mold assembly is also provided with a recessing punching convex module, and a second die groove is opened at the position of the recessing punching convex module on the lower mold assembly corresponding to the position of the recessing punching convex module; the recessing punching convex module is arranged on the workpiece edge recessing punching station, and the recessing punching convex module is located at the center of the edge of the workpiece edge recessing punching station, the separating convex module includes a middle separating convex module and a side separating convex module, the middle separating convex module is arranged on the cutting position between the workpiece punching station and the middle workpiece separating station, and the side separating convex module is arranged on the cutting position between the workpiece edge recessing punching station and the side workpiece separating station.

[0015] Preferably, the end of the middle partition convex module is also formed with an extension portion for cutting a notch on the edge of the workpiece.

[0016] Compared with the prior art, the beneficial effects of the utility model are:

[0017] By first opening a flat hole, the recessed structure will not be strained on both sides when it is stamped, and the edge fracture recessed structure is reasonably formed, ensuring the integrity of the product edge and the stability of quality. This precise processing method avoids product defects caused by stress concentration or deformation during the processing process, and improves the reliability and service life of the product. Compared with the prior art, similar products that do not adopt this solution are prone to cracking, deformation and other problems after being used for a period of time due to defects such as strain on the edge structure during the processing, which affects the normal use of the product. The lower cover of the computer host power supply housing produced by this solution has maintained good stability and integrity of the edge structure after long-term use and testing, greatly improving the quality and reliability of the product.

[0018] The width of the flat hole cut out by the notched convex module on the workpiece corresponds to the thickness of the workpiece, so that the concave part after bending along the flat hole can directly rest against the lower end of the lower cover, ensuring the dimensional accuracy and assembly performance of the product. This precise design and processing method enables the product to better match other components during the assembly process, improving the overall performance and quality of the product. In the actual assembly process, the lower cover of the power supply casing with low dimensional accuracy may cause problems such as loose assembly with internal electronic components and gaps, affecting the protection performance and stability of the power supply. The lower cover produced by this solution can be tightly assembled with internal electronic components because the dimensional accuracy is effectively guaranteed, thereby improving the overall performance and reliability of the power supply.

[0019] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0021] Figure 1 It is a partial structural schematic diagram of the finished product of the lower cover of the utility model;

[0022] Figure 2 It is a structural schematic diagram of the utility model in which the main body of the continuous mold is in a mold-closing state;

[0023] Figure 3 It is a structural schematic diagram of the utility model when the main body of the continuous mold is in the mold opening state;

[0024] Figure 4 It is a structural schematic diagram of the middle partition convex module and the side partition convex module in the utility model;

[0025] Figure 5 It is an intuitive structural schematic diagram of the utility model that uses the material strip as a reference to display the working station and cutting part;

[0026] Figure 6 This utility model Figure 5 Schematic diagram of the cut workpiece structure;

[0027] Figure 7 It is a complete structural schematic diagram of the utility model showing the working station and cutting part with the material strip as reference;

[0028] Figure 8 This utility model Figure 7 Schematic diagram of the cut workpiece structure.

[0029] The reference numerals and names in the figures are as follows:

[0030] Workpiece feeding station 10, workpiece cutting station 20, workpiece edge fracture punching station 30, workpiece punching station 40, workpiece separation station 50, middle workpiece separation station 51, side workpiece separation station 52, cutting part 60, first workpiece cutting line 61, second workpiece cutting line 62, upper die assembly 70, cutting convex module 71, fracture punching convex module 72, punching convex module 73, separation convex module 74, middle separation convex module 741, side separation convex module 742, extension part 743, give way part 744, recessed punching convex module 76, lower die assembly 80, blanking groove 81, first die groove 82, second die groove 83, workpiece edge recessed punching station 90. DETAILED DESCRIPTION

[0031] The technical solutions in the embodiments of the present invention are described clearly and completely below. Obviously, the described embodiments are only a part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0032] See also Figure 1-8 In an embodiment of the utility model, a continuous die for a lower cover of a power supply housing includes a continuous die main body, on which a plurality of continuous stations are arranged, the plurality of continuous stations include a workpiece feeding station 10, a workpiece cutting station 20, a workpiece edge breaking and punching station 30, a workpiece punching station 40 and a workpiece separating station 50 arranged in sequence, and a cutting portion 60 is arranged between the workpiece feeding station 10, the workpiece cutting station 20, the workpiece edge breaking and punching station 30, the workpiece punching station 40 and the workpiece separating station 50;

[0033] The continuous die body includes an upper die assembly 70 and a lower die assembly 80. The upper die assembly 70 is provided with a notching convex module 71, a fracture punching convex module 72, a punching convex module 73 and a separation convex module 74. The lower die assembly 80 is provided with corresponding blanking grooves 81 at positions corresponding to the notching convex module 71, the punching convex module 73 and the separation convex module 74. The lower die assembly 80 is provided with a first concave die groove 82 at a position corresponding to the fracture punching convex module 72.

[0034] The cutting convex modules 71 are two flat and parallel groups, one of which is arranged on the cutting part 60 between the workpiece feeding station 10 and the workpiece cutting station 20, and the other is arranged on the workpiece cutting station 20;

[0035] The fracture punching convex module 72 is arranged on the workpiece edge fracture punching station 30, and the fracture punching convex module 72 acts on the position between the workpieces after being cut by the two notching convex modules 71;

[0036] The punching convex module 73 is arranged on the workpiece punching station 40, and the punching convex module 73 acts on the position of the workpiece after being punched by the breaking punching convex module 72;

[0037] The separation convex module 74 is disposed on the cutting portion 60 between the workpiece punching station 40 and the workpiece separation station 50 for cutting out the workpiece.

[0038] By setting up multiple workstations, continuous cutting and punching of the lower cover of the computer host power supply shell is realized, and multiple processing steps are integrated into one production line, which greatly reduces the intermediate links and material flow time in the production process. Compared with the traditional step-by-step processing method, it significantly improves production efficiency. The one-time molding method avoids subsequent complex processing and reduces repeated clamping, positioning and other operations, which not only saves time, but also reduces the errors and defective rates that may be caused by multiple operations, further improving production efficiency and product quality stability.

[0039] By first opening a flat hole, the recessed structure will not be strained on both sides when it is stamped, and the edge fracture recessed structure is reasonably formed, ensuring the integrity of the product edge and the stability of quality. This precise processing method avoids product defects caused by stress concentration or deformation during the processing process, and improves the reliability and service life of the product. Compared with the prior art, similar products that do not adopt this solution are prone to cracking, deformation and other problems after being used for a period of time due to defects such as strain on the edge structure during the processing, which affects the normal use of the product. The lower cover of the computer host power supply housing produced by this solution has maintained good stability and integrity of the edge structure after long-term use and testing, greatly improving the quality and reliability of the product.

[0040] The width of the flat hole cut out by the notched convex module 71 on the workpiece corresponds to the thickness of the workpiece, so that the concave part after bending along the flat hole can directly rest against the lower end of the lower cover, ensuring the dimensional accuracy and assembly performance of the product. This precise design and processing method enables the product to better match other components during the assembly process, improving the overall performance and quality of the product. In the actual assembly process, the lower cover of the power supply housing with low dimensional accuracy may cause problems such as loose assembly with internal electronic components and gaps, affecting the protection performance and stability of the power supply. The lower cover produced by this solution can be tightly assembled with internal electronic components because the dimensional accuracy is effectively guaranteed, thereby improving the overall performance and reliability of the power supply.

[0041] The one-time production and forming processing method reduces equipment investment, labor costs and energy consumption in the production process. Since there is no need for complex subsequent processing, the corresponding equipment purchase, maintenance and operator requirements are reduced, and the company's fixed asset investment and operating costs are reduced. The defective rate and waste are reduced, and the waste and loss of raw materials are reduced. Since this solution can effectively ensure product quality during the processing process, the waste of raw materials caused by defective and waste products is reduced, the utilization rate of raw materials is improved, and the production cost is further reduced.

[0042] Please refer to Figure 5 In the embodiment of the utility model, it is proposed that the cutting part 60 has a first workpiece cutting line 61 and a second workpiece cutting line 62, and the separation convex module 74 corresponds to the first workpiece cutting line 61 and the second workpiece cutting line 62. One side of the notch convex module 71 located on the cutting part 60 overlaps with the first workpiece cutting line 61, and the other side is spaced apart from the second workpiece cutting line 62. Through this setting, it is possible to reasonably separate two adjacent workpieces when processing the material strip, and one side of the notch convex module 71 located on the cutting part 60 is set to overlap with the first workpiece cutting line 61, so as to achieve a structural setting of an edge recess. Setting the other side of the notch convex module 71 to be spaced apart from the second workpiece cutting line 62 can effectively avoid burrs, defects, unevenness and other problems at the edge of the next workpiece caused by two cuts, ensure the smoothness and integrity of the edge of the workpiece, and improve the appearance quality and performance of the product.

[0043] Please refer to Figure 5 In the embodiment of the utility model, it is proposed that the length of the cut convex module 71 located on the cutting part 60 is greater than that of another cut convex module 71; the operable range of the subsequent stamping recessed structure is increased, making the recessed structure more stable and regular, thereby further ensuring that when the edge fracture recessed structure is formed, no strain will be caused on both sides, thereby improving the processing accuracy and quality.

[0044] Please refer to Figure 4-5In the embodiment of the utility model, it is proposed that a yielding portion 744 is provided on the separation convex module 74, and the yielding portion 744 corresponds to the first workpiece cutting line 61, and the yielding portion 744 corresponds to the cut convex module 71 on the cutting part 60; by providing the yielding portion 744 corresponding to the first workpiece cutting line 61 on the separation convex module 74, and making it correspond to the cut convex module 71 on the cutting part 60, the repeated cutting of the first workpiece cutting line 61 by the cut convex module 71 and the separation convex module 74 is effectively avoided, and the burrs, defects, unevenness and other problems of the workpiece caused by repeated cutting are significantly reduced, and the surface quality and edge flatness of the lower cover of the computer host power supply shell are greatly improved; the defective rate and scrap rate of the product are reduced, and the consistency and stability of the product are improved. Since the quality problems caused by repeated cutting are avoided, the size, shape and performance of the produced lower cover of the computer host power supply shell are more in line with the design requirements.

[0045] Please refer to Figure 2 , Figure 3 , Figure 4 , Figure 7 and Figure 8 In the embodiment of the utility model, it is proposed that the multi-stage continuous workstations also include a workpiece edge recessed punching station 90, and the workpiece separation station 50 has a middle workpiece separation station 51 and a side workpiece separation station 52, the workpiece edge recessed punching station 90 is arranged between the middle workpiece separation station 51 and the side workpiece separation station 52, and a cutting part 60 is also arranged between the middle workpiece separation station 51, the workpiece edge recessed punching station 90 and the side workpiece separation station 52; the upper mold assembly 70 is also provided with a recessed punching convex module 76, and a second die groove 83 is opened on the lower mold assembly 80 at a position corresponding to the recessed punching convex module 76; the recessed punching convex module 76 is arranged on the workpiece edge recessed punching station 90, and the recessed punching convex module 76 is located at the edge of the workpiece edge recessed punching station 90. The separation convex Module 74 includes a middle partition convex module 741 and a side partition convex module 742. The middle partition convex module 741 is arranged on the cutting portion 60 between the workpiece punching station 40 and the middle workpiece separation station 51, and the side partition convex module 742 is arranged on the cutting portion 60 between the workpiece edge recessing punching station 90 and the side workpiece separation station 52. Through this arrangement, the workpiece can not only punch out a recessed structure with a broken edge, but also a structure with only a recessed edge. In addition, the linear cutting and then recessing method is adopted, which also avoids the occurrence of a situation where the workpiece or the adjacent workpiece is strained. The end of the middle partition convex module 741 is also formed with an extension portion 743 for cutting a notch in the edge of the workpiece, so that the edge structure of the lower cover is more complicated and the number of stations is reasonably reduced, thereby reducing the length of the continuous mold.

[0046] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or basic features of the present invention. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present invention.

Claims

1. A continuous die for the lower cover of a power supply housing, characterized in that: The invention comprises a continuous die body, on which a plurality of continuous workstations are arranged, the plurality of continuous workstations comprising a workpiece feeding station (10), a workpiece cutting station (20), a workpiece edge breaking and punching station (30), a workpiece punching station (40) and a workpiece separation station (50) arranged in sequence, and cutting parts (60) are arranged at intervals between the workpiece feeding station (10), the workpiece cutting station (20), the workpiece edge breaking and punching station (30), the workpiece punching station (40) and the workpiece separation station (50); The continuous die body comprises an upper die assembly (70) and a lower die assembly (80); the upper die assembly (70) is provided with a notching convex module (71), a fracture punching convex module (72), a punching convex module (73) and a separation convex module (74); corresponding blanking grooves (81) are provided at positions corresponding to the notching convex module (71), the punching convex module (73) and the separation convex module (74) on the lower die assembly (80); and a first concave die groove (82) is provided at a position corresponding to the fracture punching convex module (72) on the lower die assembly (80); wherein: The cutting convex modules (71) are two flat and parallel groups, one of which is arranged on the cutting portion (60) between the workpiece feeding station (10) and the workpiece cutting station (20), and the other is arranged on the workpiece cutting station (20); The fracture punching convex module (72) is arranged on the workpiece edge fracture punching station (30), and the fracture punching convex module (72) acts on the position between the workpiece after being cut by the two cutting convex modules (71); The punching convex module (73) is arranged on the workpiece punching station (40), and the punching convex module (73) acts on the position of the workpiece after being punched by the fracture punching convex module (72); The separation convex module (74) is arranged on the cutting portion (60) between the workpiece punching station (40) and the workpiece separation station (50) and is used to cut out the workpiece.

2. A power supply housing lower cover continuous mold according to claim 1, characterized in that: The cutting portion (60) has a first workpiece cutting line (61) and a second workpiece cutting line (62); the separating convex module (74) corresponds to the first workpiece cutting line (61) and the second workpiece cutting line (62); one side of the cutting convex module (71) located on the cutting portion (60) overlaps with the first workpiece cutting line (61) and the other side is spaced apart from the second workpiece cutting line (62).

3. A power supply housing lower cover continuous mold according to claim 2, characterized in that: The length of the cutout convex module (71) located on the cutting portion (60) is greater than that of the other cutout convex module (71).

4. A power supply housing lower cover continuous mold according to claim 3, characterized in that: A clearance portion (744) is provided on the separation convex module (74), the clearance portion (744) corresponds to the first workpiece cutting line (61), and the clearance portion (744) corresponds to the incision convex module (71) on the cutting part (60).

5. The power supply housing lower cover continuous mold according to claim 1, characterized in that: The multi-stage continuous workstations further include a workpiece edge recessing punching station (90), and the workpiece separation station (50) includes a middle workpiece separation station (51) and a side workpiece separation station (52). The workpiece edge recessing punching station (90) is arranged between the middle workpiece separation station (51) and the side workpiece separation station (52), and a cutting portion (60) is also arranged between the middle workpiece separation station (51), the workpiece edge recessing punching station (90) and the side workpiece separation station (52); the upper die assembly (70) is further provided with a recessing punching convex module (76), and a recessing punching convex module (76) is provided on the lower die assembly (80) at a position corresponding to the recessing punching convex module (76). A second die groove (83); a recessed punching convex module (76) is arranged on a workpiece edge recessed punching station (90), and the recessed punching convex module (76) is located at a central position of the edge of the workpiece edge recessed punching station (90); a separating convex module (74) comprises a middle separating convex module (741) and a side separating convex module (742); the middle separating convex module (741) is arranged on a cutting portion (60) between the workpiece punching station (40) and the middle workpiece separating station (51); and the side separating convex module (742) is arranged on a cutting portion (60) between the workpiece edge recessed punching station (90) and the side workpiece separating station (52).

6. A power supply housing lower cover continuous mold according to claim 5, characterized in that: An extension portion (743) for cutting a notch on the edge of a workpiece is also formed at the end of the middle partition convex module (741).

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