Material sheet bending forming device

Abstract

The utility model discloses a material sheet bending and forming device which comprises a lower die assembly, a lower die assembly, an upper die assembly and a lower die assembly, a female die is arranged at the upper end of the lower die assembly, a plurality of guide blocks are arranged above the female die, and the guide blocks are configured to penetrate through material sheets to be bent; the upper die assembly comprises a male die, a spring pressing plate and an elastic piece, the male die is arranged below the spring pressing plate and connected with the spring pressing plate through the elastic piece, and the male die and the female die are oppositely arranged; the output end of the driving mechanism is connected with a positioning block, the positioning block is connected with the spring pressing plate, and the driving mechanism is configured to drive the upper die assembly to move in the vertical direction. The material sheet bending forming device is high in machining efficiency and capable of improving the product percent of pass.

Description

Technical Field

[0001] The utility model relates to the technical field of automated processing, in particular to a material sheet bending and forming device. Background Art

[0002] Fuses are one of the commonly used protection components in circuits. There are many types of fuses. Among them, ceramic fuses have higher safety, stability and high temperature resistance, and are suitable for use in harsh environments such as high temperature and high humidity. In addition, ceramic fuses also have lower energy consumption and higher disconnection accuracy, which can improve the reliability and stability of the circuit.

[0003] Among ceramic fuses, high-power surface mount fuses (CMF) have excellent and safe fuse performance. They are not prone to arcing during the fusing process and are safer. Figure 1 The blank shown is bent into Figure 2 The bending structure shown. Since the sheet is thin, easy to bend and warp, there is a problem of difficulty in positioning during the bending process of the sheet. At present, manual methods are generally used to place the sheet, adjust the position of the sheet, and control the mold to bend the sheet into shape. However, this processing method has low production efficiency and a relatively high defective rate of the product.

[0004] The disclosure of the above background technology content is only used to assist in understanding the concept and technical solution of the utility model. It does not necessarily belong to the prior art of the present application, nor does it necessarily provide technical guidance. In the absence of clear evidence that the above content has been disclosed before the filing date of the present application, the above background technology should not be used to evaluate the novelty and creativity of the present application. Utility Model Content

[0005] The utility model aims to provide a material sheet bending and forming device, which has high processing efficiency and can improve the product qualification rate.

[0006] In order to achieve the above purpose, the technical solution adopted by the utility model is as follows:

[0007] A sheet bending and forming device, comprising:

[0008] A lower die assembly, the upper end of which is provided with a concave die, and a plurality of guide blocks are provided above the concave die, and the guide blocks are configured to pass through the sheet to be bent;

[0009] An upper die assembly, comprising a male die, a spring pressure plate and an elastic member, wherein the male die is arranged below the spring pressure plate and connected to the spring pressure plate through the elastic member, and the male die is arranged opposite to the female die;

[0010] The driving mechanism has an output end connected to a positioning block, the positioning block is connected to the spring pressure plate, and the driving mechanism is configured to drive the upper mold assembly to move in a vertical direction.

[0011] Further, based on any one of the technical solutions or a combination of multiple technical solutions mentioned above, the elastic member is an elastic plunger, the number of the elastic plungers is multiple, the multiple elastic plungers are distributed in the spring pressure plate and the lower end of the elastic plunger is in contact with the upper end of the punch.

[0012] Further, based on any one of the above technical solutions or a combination of multiple technical solutions, it also includes a rack, the rack includes a bottom plate and a top plate arranged horizontally and a back plate arranged vertically, the top plate and the bottom plate are respectively arranged at the upper end and the lower end of the back plate;

[0013] The lower mold assembly is arranged on the bottom plate, the driving mechanism is arranged on the top plate, and the upper mold assembly is slidably connected with the back plate in a vertical direction through a guide mechanism.

[0014] Further, based on any one of the technical solutions or a combination of multiple technical solutions mentioned above, the guiding mechanism includes one or more sets of slide rails and sliders, and the sliders are configured to slide on the slide rails; the slide rails are vertically fixed on the back plate, and the sliders are fixedly connected to the upper mold assembly.

[0015] Furthermore, any one of the above-mentioned technical solutions or a combination of multiple technical solutions further includes a detection sensor, and the detection sensor is configured to detect whether the position of the sheet is tilted.

[0016] Further, based on any one of the technical solutions or a combination of multiple technical solutions mentioned above, the number of the detection sensors is two, and the two detection sensors are arranged on the front and rear sides of the material sheet.

[0017] Further, based on any one of the technical solutions or a combination of multiple technical solutions mentioned above, a plurality of through holes are arranged on the upper surface of the die, each of the through holes is connected to a trachea joint, and the through holes are arranged below the sheet.

[0018] Furthermore, based on any one of the technical solutions or a combination of multiple technical solutions mentioned above, the positioning block is an inverted L-shaped structure, the side of the punch is in contact and connected with the vertical side of the inverted L-shaped structure, and the upper ends of both sides of the punch are in contact and connected with the horizontal side of the inverted L-shaped structure.

[0019] Further, based on any one of the technical solutions or a combination of multiple technical solutions mentioned above, the guide block has an upward contraction structure.

[0020] Further, based on any one of the above-mentioned technical solutions or a combination of multiple technical solutions, the guide block is truncated cone-shaped; and / or,

[0021] The height of the guide block is not less than the thickness of the sheet to be formed.

[0022] The beneficial effects brought by the technical solution provided by the utility model are as follows:

[0023] a. The utility model arranges a plurality of guide blocks distributed above the concave die. The guide blocks are retracted upward to facilitate the rapid placement of the sheet during the loading process and guide and position the sheet. The convex die and the spring pressure plate are elastically connected by elastic parts. When the driving mechanism presses the upper die assembly to the lower die assembly, the sheet can be pre-pressed. Therefore, the sheet bending and forming device can not only replace the manual automatic sheet bending and forming process, effectively improve the product processing efficiency, but also improve the product qualification rate;

[0024] b. The utility model can position the upper mold assembly in the vertical and horizontal directions through the positioning block of the inverted L-shaped structure, improve the assembly accuracy of the upper mold assembly and the positioning hole, which is conducive to ensuring the mold clamping accuracy. The mold clamping accuracy can also be improved by combining with the guide mechanism, which can improve the accuracy of the bending of the sheet, thereby achieving an increase in the qualified rate of the product;

[0025] c. The utility model has a plurality of through holes on the upper surface of the die, each of which is connected to an air pipe joint. The through holes are arranged below the sheet. If the sheet placed on the lower die assembly is offset, air can be ventilated into each through hole through the air pipe joints, thereby blowing away the sheet that does not meet the position requirements, avoiding manual picking up of the sheet. This not only allows the unqualified sheets to be quickly removed and production efficiency to be improved, but also improves the safety of the production process. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the embodiments of the present application 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 recorded in the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0027] Figure 1 A three-dimensional schematic diagram of a sheet to be bent and formed provided as an exemplary embodiment of the utility model;

[0028] Figure 2 A three-dimensional schematic diagram of a sheet after bending and forming provided by an exemplary embodiment of the utility model;

[0029] Figure 3A three-dimensional schematic diagram of a sheet bending and forming device provided for an exemplary embodiment of the utility model;

[0030] Figure 4 A schematic front view of a blank bending and forming device provided for an exemplary embodiment of the utility model;

[0031] Figure 5 A three-dimensional schematic diagram of a lower mold assembly provided for an exemplary embodiment of the utility model;

[0032] Figure 6 A schematic top view of a lower mold assembly provided for an exemplary embodiment of the utility model;

[0033] Figure 7 for Figure 5 The enlarged schematic diagram shown at A in the middle;

[0034] Figure 8 A three-dimensional schematic diagram of an upper mold assembly provided for an exemplary embodiment of the utility model;

[0035] Fig. 9 A schematic top view of an upper mold assembly provided for an exemplary embodiment of the utility model;

[0036] Fig.10 for Fig. 9 The cross-sectional view shown at BB in the middle;

[0037] Fig.11 A three-dimensional schematic diagram of a positioning block provided for an exemplary embodiment of the utility model;

[0038] Fig.12 A schematic side view of a positioning block provided for an exemplary embodiment of the utility model.

[0039] Among them, the figure marks include: 1-frame, 11-bottom plate, 12-top plate, 13-back plate, 2-lower mold assembly, 21-die, 211-guide block, 212-through hole, 213-trachea joint, 3-upper mold assembly, 31-punch, 32-spring pressure plate, 33-elastic plunger, 4-driving mechanism, 41-positioning block, 411-vertical side, 412-horizontal side, 5-guide mechanism, 51-slide rail, 52-slider, 6-detection sensor, 61-mounting plate, 7-sheet. DETAILED DESCRIPTION

[0040] In order to enable those skilled in the art to better understand the solution of the utility model, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is only a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the utility model.

[0041] It should be noted that the terms "first", "second", etc. in the specification and claims of the utility model and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the utility model described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, device, product or equipment that includes a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or equipment.

[0042] In one embodiment of the present invention, a sheet bending and forming device is provided. Figure 3 to Figure 4 , the sheet bending and forming device comprises:

[0043] A frame 1, the frame 1 comprising a bottom plate 11 and a top plate 12 arranged horizontally and a back plate 13 arranged vertically, the top plate 12 and the bottom plate 11 being arranged at the upper end and the lower end of the back plate 13 respectively;

[0044] The lower die assembly 2 has a concave die 21 disposed at its upper end, and a plurality of guide blocks 211 are disposed above the concave die 21, and the guide blocks 211 are configured to pass through the sheet 7 to be bent;

[0045] The upper mold assembly 3 includes a punch 31, a spring pressure plate 32 and an elastic member. The punch 31 is arranged below the spring pressure plate 32 and connected to the spring pressure plate 32 through the elastic member. The punch 31 is arranged opposite to the concave mold 21. After the punch 31 and the concave mold 21 are molded together, a mold cavity corresponding to the structure of the target molding of the sheet is formed;

[0046] The drive mechanism 4, whose output end is connected to the positioning block 41, the positioning block 41 is connected to the spring pressure plate 32, the drive mechanism 4 can be a cylinder or an electric cylinder, which is configured to drive the upper die assembly 3 to move in the vertical direction, and the material to be bent can be bent into a target structure by controlling the male die 31 and the female die 21 to be separated by the drive mechanism 4, so that the material can be taken or discharged;

[0047] In this embodiment, the lower mold assembly 2 is arranged on the base plate 11, the main structure of the driving mechanism 4 is arranged on the top plate 12, the output shaft of the driving mechanism 4 extends to the bottom of the top plate 12 and is fixedly connected to the positioning block 41, and the upper mold assembly 3 is slidably connected to the back plate 13 in the vertical direction through the guide mechanism 5.

[0048] Wherein, the lower mold assembly 2 is as follows Figure 5 to Figure 6 As shown, the guide block 211 on the die 21 is as shown in FIG. Figure 7 As shown, in this embodiment, the guide block 211 has an upward contraction structure. Preferably, the guide block 211 is truncated cone-shaped, and the height of the guide block 211 is not less than the thickness of the sheet to be formed. By distributing a plurality of the guide blocks 211 above the die 21, the upward contraction structure of the guide block 211 facilitates the rapid placement of the sheet 7 during the loading process and has a guiding effect on the sheet 7. Each guide hole passes through the through hole on the sheet 7 to be bent, and can well position the sheet 7 to be bent, thereby improving the qualified rate of the finished product.

[0049] In this embodiment, in order to improve the qualified rate of the finished product, an elastic member is arranged in the upper mold assembly 3, and the punch 31 and the spring pressure plate 32 are elastically connected through the elastic member. When the driving mechanism 4 presses the upper mold assembly 3 to the lower mold assembly 2, the sheet 7 is pre-pressed. During the pre-pressing process, the position of the sheet can be automatically fine-tuned, thereby improving the qualified rate of the product.

[0050] In one embodiment of the present invention, Figures 8 to 10 As shown, the elastic member is an elastic plunger 33, which acts as a spring and adjusts the compression height. There are multiple elastic plungers 33, which are distributed in the spring pressure plate 32 and the lower end of the elastic plunger 33 is in contact with the upper end of the punch 31.

[0051] In one embodiment of the present invention, the guide mechanism 5 includes one or more sets of slide rails 51 and slide blocks 52. Figure 3 and Figure 4As shown, two groups of slide rails 51 and sliders 52 are arranged in parallel at intervals. In each group of slide rails 51 and sliders 52, the slider 52 is configured to slide on the slide rails 51. The slide rails 51 are vertically fixed on the back plate 13, and the sliders 52 are fixedly connected to the upper mold assembly 3. In other embodiments, the guide mechanism 5 can also be provided with a guide column extending downward on the top plate 12, and a through hole is provided on the positioning block 41, so that the guide column passes through the through hole on the positioning block 41. The guide mechanism 5 can ensure the mold closing accuracy, improve the accuracy of the sheet bending, and thus improve the qualified rate of the product.

[0052] See also Figure 11 to Figure 12 The positioning block 41 is in an inverted L-shaped structure, the side of the punch 31 is in contact with the vertical side 411 of the inverted L-shaped structure, and the upper ends of both sides of the punch 31 are in contact with the horizontal side 412 of the inverted L-shaped structure. This structure of the positioning block 41 can position the upper mold assembly 3 in the vertical and horizontal directions, improve the assembly accuracy of the upper mold assembly 3 and the positioning hole 41, and help to ensure the mold closing accuracy, thereby improving the bending accuracy of the sheet.

[0053] In one embodiment of the present invention, the sheet bending and forming device further comprises a detection sensor 6, and the detection sensor 6 is configured to detect whether the position of the sheet is tilted. Figure 3 and Figure 4 As shown, the number of the detection sensors 6 is two, and the two detection sensors 6 are arranged on the front and rear sides of the sheet. The detection sensor 6 can be a laser sensor, an infrared sensor, etc. In a specific embodiment, the detection sensor 6 is a laser sensor of model LR-ZH500. Figure 3 and Figure 4 As shown, a mounting plate 61 extending to the side is mounted on the side of the mounting seat of the lower mold assembly, and two laser sensors are mounted on the mounting plate 61 and the detection directions are the front and rear sides of the sheet.

[0054] In one embodiment of the utility model, a plurality of through holes 212 are provided on the upper surface of the concave mold 21, each of the through holes 212 is connected to a gas pipe joint 213, and the through holes 212 are provided below the tablet. In application, if the position of the tablet 7 placed on the lower mold assembly 2 is offset, air can be ventilated into each through hole 212 through the gas pipe joints 213, and then the tablet 7 that does not meet the position requirements can be blown away, avoiding manual picking of the tablet, which can not only quickly remove unqualified tablets and improve production efficiency, but also improve the safety of the production process.

[0055] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0056] The above is only a specific implementation of the present application. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present application. These improvements and modifications should also be regarded as the scope of protection of the present application.

Claims

1. A sheet bending and forming device, characterized in that: include: A lower die assembly (2) is provided with a concave die (21) at its upper end, and a plurality of guide blocks (211) are provided above the concave die (21), wherein the guide blocks (211) are configured to pass through a sheet to be bent; An upper die assembly (3), comprising a male die (31), a spring pressure plate (32) and an elastic member, wherein the male die (31) is arranged below the spring pressure plate (32) and connected to the spring pressure plate (32) via the elastic member, and the male die (31) is arranged opposite to the female die (21); A driving mechanism (4) has an output end connected to a positioning block (41), the positioning block (41) is connected to the spring pressure plate (32), and the driving mechanism (4) is configured to drive the upper mold assembly (3) to move in a vertical direction.

2. The sheet bending and forming device according to claim 1, characterized in that: The elastic member is an elastic plunger (33), and there are a plurality of elastic plungers (33). The plurality of elastic plungers (33) are distributed in the spring pressure plate (32), and the lower end of the elastic plunger (33) is in contact with the upper end of the punch (31).

3. The sheet bending and forming device according to claim 1, characterized in that: The machine also comprises a frame (1), the frame (1) comprising a bottom plate (11) and a top plate (12) arranged horizontally, and a back plate (13) arranged vertically, the top plate (12) and the bottom plate (11) being arranged at the upper end and the lower end of the back plate (13) respectively; The lower mold assembly (2) is arranged on the bottom plate (11), the driving mechanism (4) is arranged on the top plate (12), and the upper mold assembly (3) is slidably connected to the back plate (13) in a vertical direction via a guide mechanism (5).

4. The sheet bending and forming device according to claim 3, characterized in that: The guide mechanism (5) comprises one or more sets of slide rails (51) and sliders (52), wherein the sliders (52) are configured to slide on the slide rails (51); the slide rails (51) are vertically fixed on the back plate (13), and the sliders (52) are fixedly connected to the upper mold assembly (3).

5. The sheet bending and forming device according to claim 1, characterized in that: It also comprises a detection sensor (6), wherein the detection sensor (6) is configured to detect whether the position of the sheet is tilted.

6. The sheet bending and forming device according to claim 5, characterized in that: The number of the detection sensors (6) is two, and the two detection sensors (6) are arranged on the front and rear sides of the material sheet.

7. The sheet bending and forming device according to claim 1, characterized in that: A plurality of through holes (212) are arranged on the upper surface of the concave mold (21), each of the through holes (212) is connected to an air pipe joint (213), and the through holes (212) are arranged below the material sheet.

8. The sheet bending and forming device according to claim 1, characterized in that: The positioning block (41) is in an inverted L-shaped structure, the side surface of the punch (31) is in contact with the vertical side surface (411) of the inverted L-shaped structure, and the upper ends of both sides of the punch (31) are in contact with the horizontal side surface (412) of the inverted L-shaped structure.

9. The sheet bending and forming device according to claim 1, characterized in that: The guide block (211) has an upwardly contracting structure.

10. The sheet bending and forming device according to claim 9, characterized in that: The guide block (211) is in a truncated cone shape; and / or, The height of the guide block (211) is not less than the thickness of the sheet to be formed.

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