Box cover hardware cutting and bending integrated device
By designing the integrated cutting and bending device of box cover hardware, the precise cutting and bending of box cover hardware is achieved, solving the problems of low efficiency and high cost in the existing technology, and improving product yield and processing efficiency.
Patent Information
- Application Number
- CN202422238547.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-12
- Publication Date
- 2025-07-18
- Estimated Expiration
- 2034-09-12
AI Technical Summary
The processing of box cover hardware requires two processes: cutting and bending, resulting in low processing efficiency and high equipment cost.
A box-cover hardware cutting and bending integrated device is designed. By setting the first and second die core components between the upper mold base and the lower mold base, a plurality of cutting heads are used to achieve accurate cutting and bending of the sheet, avoiding burrs and integrating the cutting and bending process.
It improves product yield, reduces labor and equipment costs, and improves processing efficiency.
Smart Images
Figure CN223113965U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a hardware processing device, in particular to a device for integrally cutting and bending box cover hardware parts. Background Art
[0002] Box cover hardware parts generally refer to metal protective covers or baffles used in electronic devices or other mechanical equipment. Usually, processing continuous sheet materials into individual metal protective covers or baffles requires two processes: cutting and bending. During the processing, two sets of devices, namely a cutting device and a bending device, are needed, resulting in low processing efficiency and high equipment costs. Content of the Utility Model
[0003] The utility model provides a device for integrally cutting and bending box cover hardware parts, which can effectively solve the above problems.
[0004] The utility model is implemented as follows:
[0005] A device for integrally cutting and bending box cover hardware parts includes a driving mechanism, an upper die base and a lower die base. A first die core assembly and a second die core assembly are arranged between the upper die base and the lower die base. The first die core assembly is arranged at the left end of the second die core assembly and is spaced from the second die core assembly. The first die core assembly is provided with a first cutting head in the middle of the sheet material and several second cutting heads. The second die core assembly is provided with two third cutting heads symmetrically arranged on both sides of the sheet material.
[0006] The upper die base presses down and cuts the middle of the sheet material through the two first cutting heads. The second cutting heads cut out notches at the edge of the sheet material, and then the third cutting heads completely cut off the edge of the sheet material. The second die core assembly clamps the sheet material before completely cutting it off and bends it after completely cutting it off.
[0007] As a further improvement, the first die core assembly further includes a first upper backing plate, a first upper clamping plate and a lower die core plate. The first upper backing plate is arranged on the lower end face of the upper die base. The first upper clamping plate is arranged on the lower end face of the first upper backing plate. A channel for placing the sheet material is formed by the first upper clamping plate and the lower die core plate in contact with each other.
[0008] The second die core assembly further includes a second upper backing plate, a bending punch, two symmetrically arranged bending punch seats and a lower backing plate. The second upper backing plate is arranged on the lower end face of the upper die base. The lower backing plate is arranged on the upper end face of the lower die base. The bending punch is arranged on the lower end face of the second upper backing plate. The bending punch cooperates with the bending punch seats. A floating block that can move up and down is further arranged between the two bending punch seats. An elastic member is connected between the lower end face of the floating block and the lower backing plate.
[0009] As a further improvement, the first cutter head is arranged on the first upper clamping plate and is close to one end of the incoming sheet material, and moves up and down to cooperate with the lower mold core plate.
[0010] As a further improvement, when the core mold assembly is in the mold opening state, the upper end surface of the floating block is higher than the upper end surface of the bending stamping seat.
[0011] As a further improvement, the third cutter head is arranged on both sides of the bending punch and is located at one end of the bending punch close to the first core assembly, and the lower end surface of the third cutter head is lower than the lower end surface of the bending punch.
[0012] As a further improvement, the first core mold assembly further includes a punch rod, the punch rod is located on the right side of the first cutter head, and the lower end surface of the punch rod is lower than the lower end surface of the first upper clamping plate.
[0013] As a further improvement, the first mold core assembly further includes a group of symmetrically arranged guide blocks, which are respectively arranged on both sides of the upper end surface of the lower mold core plate, and the guide blocks include a limiting portion, which is arranged on the side of the guide blocks close to the sheet material.
[0014] The beneficial effects of the utility model are:
[0015] A through hole is cut out in the middle of the sheet by the first cutter head, and various holes required on the baffle are cut out by the second cutter head. The distance between each hole and the edge of the baffle is fixed to a more accurate size. The remaining connecting part of the sheet is cut by the third cutter head. The second core assembly clamps the sheet before completely cutting it and bends it after it is completely cut. Each time the sheet is cut, the corresponding part is in a horizontal state, which can avoid burrs as much as possible. The cutting and bending connection process does not require repositioning, thereby improving the product yield, reducing labor costs, and improving efficiency. Integrating traditional cutting devices and bending devices into one can also reduce equipment costs. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] In order to more clearly illustrate the technical solution of the implementation mode of the utility model, the drawings required for use in the implementation mode will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.
[0017] Figure 1 It is a schematic diagram of the overall structure provided by an embodiment of the utility model.
[0018] Figure 2 yes Figure 1 Cross-sectional view at AA in .
[0019] Figure 3 is Figure 1 the cross-sectional view taken along line B-B in
[0020] Figure 4 is Figure 1 the cross-sectional view taken along line C-C in
[0021] Figure 5 is the cross-sectional view of the baffle provided by the embodiment of the present utility model.
[0022] Reference numerals:
[0023] 1. First die core assembly; 11. First cutter head; 12. Punch rod; 13. Guide block; 14. First upper backing plate; 15. First upper clamping plate; 16. Lower die core plate; 17. Second cutter head;
[0024] 2. Second die core assembly; 21. Third cutter head; 22. Second upper backing plate; 23. Bending punch; 24. Bending punch seat; 25. Floating block; 26. Lower backing plate;
[0025] 3. Upper die base; 4. Lower die base. Detailed implementation manners
[0026] To make the purpose, technical solutions and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are some, but not all, of the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model. Therefore, the following detailed description of the embodiments of the present utility model provided in the drawings is not intended to limit the scope of the claimed present utility model, but merely represents selected embodiments of the present utility model.
[0027] In the description of the present utility model, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present utility model, "a plurality of" means two or more unless otherwise specifically defined.
[0028] Refer to Figures 1-4As shown, a box cover hardware cutting and bending integrated device includes a driving mechanism (the driving mechanism is used to drive the upper die base 3 to move up and down, and a hydraulic press is commonly used at present, which is not marked in the figure), an upper die base 3 and a lower die base 4, and a first core mold component 1 and a second core mold component 2 are arranged between the upper die base 3 and the lower die base 4. The first core mold component 1 is arranged at the left end of the second core mold component 2, and is spaced apart from the second core mold component 2, and the spacing is adjusted according to the length of the baffle. Because the length of the second core mold component 2 covers the length of the entire baffle, the range where a single baffle is located is bent and formed by the second core mold component 2. The length of the first core mold component 1 does not need to be too long, which saves the amount of material used in the manufacturing device. The first core mold component 1 is provided with a first cutter head 11 located in the middle of the sheet and two second cutter heads 17 arranged on both sides of the sheet, and the second core mold component 2 is provided with two third cutter heads 21 symmetrically arranged on both sides of the sheet.
[0029] Since the baffle will form a Figure 5 The cross-sectional shape shown is a concave bottom in the middle, with a horizontal part on each side, and the horizontal part and the bottom are connected by an inclined part. If the entire sheet is bent first, and then the bent sheet is cut and cut at one time, the yield rate of the baffle will decrease. Due to the cross-sectional shape of the baffle, there will be too many burrs at the inclined part and the transition angle position, and the material deformation of the cut surface is serious. The reason for this phenomenon is that the thickness of the material in the vertical direction is large at this place, so it is easy to cause burrs. In order to remove the burrs, manual grinding is required, which undoubtedly increases the cost of production and reduces the efficiency of production. The method of using a cutting device to completely cut first and then bend it through a bending device requires the sheet to be repositioned, and the operation method is inefficient.
[0030] The two groups of cutting knife groups at different positions provided in the present embodiment are adopted. The first cutting head 11 cuts a through hole in the middle of the sheet material. The range covered by the first through hole is the bottom and the inclined part of the baffle. The remaining connection parts do not need to be too much. Too much remaining connection parts will affect the cutting of the third cutting head. The second cutting head 17 cuts out various hole positions required on the baffle. The distance between each hole position and the edge of the baffle is fixed, the size is more accurate, and the size stability is high. Then the sheet material is moved and the remaining connection part of the sheet material is cut by the third cutting head 21. The second core mold assembly 2 clamps the sheet material before completely cutting the sheet material, and bends it after completely cutting. Each time the sheet material is cut, the corresponding part is in a horizontal state, so the generation of burrs can be avoided as much as possible, and the cutting and bending connection process does not need to be repositioned, thereby improving the product yield, reducing labor costs, and improving efficiency. Figure 1 The sheet in the figure is in the unfolded state and has not been bent yet.
[0031] The first die core assembly 1 further includes a first upper backing plate 14, a first upper clamping plate 15 and a lower die core plate 16. The first upper backing plate 14 is disposed on the lower end surface of the upper die base 3. The first upper clamping plate 15 is disposed on the lower end surface of the first upper backing plate 14. The first upper clamping plate 15 and the lower die core plate 16 are attached to form a channel for placing the sheet material.
[0032] The second die core assembly 2 further includes a second upper backing plate 22, a bending punch 23, two symmetrically arranged bending punch seats 24 and a lower backing plate 26. The second upper backing plate 22 is disposed on the lower end surface of the upper die base 3. The lower backing plate 26 is disposed on the upper end surface of the lower die base 4. The bending punch 23 is disposed on the lower end surface of the second upper backing plate 22. The bending punch 23 cooperates with the bending punch seats 24. A floating block 25 that can move up and down is further disposed between the two bending punch seats 24. The lower end surface of the floating block 25 is connected to an elastic member and is connected to the lower backing plate 26. During the downward pressing of the upper die base 3, before the sheet material is completely cut off, the floating block 25 and the bending punch 23 clamp the sheet material; after the downward pressing and bending step is completed, the bending punch 23 moves upward, and the floating block 25 bounces upward to separate the sheet material from the bending punch seats 24, facilitating the movement of the sheet material.
[0033] The first cutting head 11 is disposed on the first upper clamping plate 15 and is close to one end where the sheet material comes in, and moves up and down to cooperate with the lower die core plate 16.
[0034] When the die core assembly is in the open die state, the upper end surface of the floating block 25 is higher than the upper end surface of the bending punch seat, and it also makes the sheet material not contact the bending punch seat during movement, preventing the surface of the bending punch seat from wearing and reducing the material after long-term use, resulting in a change in the bending dimension. The cross section of the floating block 25 is rectangular, which is convenient for measuring changes, and it is small in volume, convenient for maintenance or replacement, and relatively low in cost.
[0035] The third cutting heads 21 are disposed on both sides of the bending punch 23 and are located at one end of the bending punch 23 close to the first die core assembly 1. The lower end surface of the third cutting heads 21 is lower than the lower end surface of the bending punch 23. When the upper die base 3 moves downward, the third cutting heads 21 first contact the sheet material, and the sheet material is clamped by the third cutting heads 21 and the floating block 25. When the third cutting heads 21 continue to press down and the sheet material is about to be cut off and deformed, the bending punch 23 and the floating block 25 cooperate to clamp the sheet material. When the remaining connected part of the sheet material is completely cut off, the sheet material is in a clamped and fixed state, and the sheet material on the right forms the length required for a single baffle. Finally, the bending punch 23 continues to press down to bend the cut single sheet material, and the formed baffle is ejected by the incoming material ejection device on the left.
[0036] The first cutting knife group further includes a punching rod 12. The punching rod 12 is located on the right side of the first cutting head 11, and the lower end surface of the punching rod 12 is lower than the lower end surface of the first upper clamping plate 15. The punching rod 12 is used to punch a through hole in the sheet material. The distance between the punching rod 12 and the first cutting head 11 is fixed and they are pressed down synchronously, making the hole edge distance more stable, improving the qualified rate of the product size, and reducing the tolerance.
[0037] The first die core assembly 1 further includes a set of symmetrically arranged guiding blocks 13, which are used for guiding the feeding of the sheet metal. They are respectively arranged on both sides of the upper end surface of the lower die core plate 16. The guiding block 13 includes a limiting portion, and the limiting portion is arranged on the side of the guiding block 13 close to the sheet metal.
[0038] In this embodiment, regarding the quantity and arrangement positions of some die core guide posts, avoidance holes, springs and the discharge port for the waste material after cutting in the box cover hardware cutting and bending integrated device, those skilled in the art can easily know according to experience, so they will not be elaborated too much in this embodiment.
[0039] The above are only the preferred embodiments of the present invention and are not used to limit the present invention. For those skilled in the art, the present invention can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.
Claims
1. A device for integrated cutting and bending of box cover hardware parts, including a driving mechanism, an upper die base (3) and a lower die base (4), characterized in that, It further includes: A first die core assembly (1) and a second die core assembly (2) are provided between the upper die base (3) and the lower die base (4). The first die core assembly (1) is arranged at the left end of the second die core assembly (2) and is spaced from the second die core assembly (2). A first cutting head (11) located in the middle of the sheet material and several second cutting heads (17) are provided on the first die core assembly (1). Two third cutting heads (21) symmetrically arranged on both sides of the sheet material are provided on the second die core assembly (2). The upper die base (3) presses down and cuts the middle part of the sheet material through the two first cutting heads (11). The second cutting heads (17) cut out notches at the edge of the sheet material, and then the third cutting heads (21) completely cut off the edge of the sheet material. The second die core assembly (2) clamps the sheet material before completely cutting it off and bends it after completely cutting it off.
2. The one-piece cutting and bending device for box cover hardware parts according to claim 1, characterized in that, The first die core assembly (1) further includes a first upper backing plate (14), a first upper clamping plate (15) and a lower die core plate (16). The first upper backing plate (14) is arranged on the lower end face of the upper die base (3). The first upper clamping plate (15) is arranged on the lower end face of the first upper backing plate (14). A channel for placing the sheet material is formed by the first upper clamping plate (15) and the lower die core plate (16) in contact with each other. The second die core assembly (2) further includes a second upper backing plate (22), a bending punch (23), two symmetrically arranged bending punch seats (24) and a lower backing plate (26). The second upper backing plate (22) is arranged on the lower end face of the upper die base (3). The lower backing plate (26) is arranged on the upper end face of the lower die base (4). The bending punch (23) is arranged on the lower end face of the second upper backing plate (22). The bending punch (23) cooperates with the bending punch seats (24). A floating block (25) that can move up and down is further provided between the two bending punch seats (24). An elastic member is connected between the lower end face of the floating block (25) and the lower backing plate (26).
3. The one-piece cutting and bending device for box cover hardware parts according to claim 2, characterized in that, The first cutting head (11) is arranged on the first upper clamping plate (15) and is close to the end where the sheet material comes in, and moves up and down to cooperate with the lower die core plate (16).
4. The one-piece cutting and bending device for box cover hardware parts according to claim 2, characterized in that, When the die core assembly is in the open die state, the upper end face of the floating block (25) is higher than the upper end face of the bending punch seat.
5. The one-piece cutting and bending device for box cover hardware parts according to claim 4, characterized in that, The third cutting heads (21) are arranged on both sides of the bending punch (23) and are located at the end of the bending punch (23) close to the first die core assembly (1). The lower end face of the third cutting heads (21) is lower than the lower end face of the bending punch (23).
6. The one-piece cutting and bending device for box cover hardware parts according to claim 3, characterized in that, The first die core assembly (1) further includes a punching rod (12). The punching rod (12) is located on the right side of the first cutting head (11), and the lower end face of the punching rod (12) is lower than the lower end face of the first upper clamping plate (15).
7. A box cover hardware part cutting and bending integrated device according to claim 2, characterized in that, The first die core assembly (1) further includes a set of symmetrically arranged guiding blocks (13), which are respectively arranged on both sides of the upper end face of the lower die core plate (16). The guiding blocks (13) include a limiting portion, and the limiting portion is arranged on the side of the guiding blocks (13) close to the sheet material.