A comprehensive die for product correction and fine blanking

Abstract

The present invention relates to a comprehensive mold for product correction and fine blanking, characterized in that it comprises a main machine upper mold, a main machine lower mold located directly below the main machine upper mold, an orthopedic component arranged on the main machine upper mold, a punching upper mold mechanism arranged on the main machine upper mold, and a punching lower mold mechanism arranged on the main machine lower mold. The comprehensive mold for product correction and fine blanking of the present invention has the advantages of realizing that the correction and fine blanking processes are independently completed by a set of molds, while improving the correction accuracy and avoiding excessive temperature of the product.

Description

Technical Field

[0001] The invention relates to the field of moulds, in particular to a comprehensive mould for product correction and fine punching. Background Art

[0002] Stamping dies are special process equipment used to process materials (metal or non-metal) into parts (or semi-finished products) during stamping. Stamping is a pressure processing method that uses a die installed on a press to apply pressure to the material at room temperature to separate or plastically deform it, thereby obtaining the desired parts.

[0003] Fine blanking is precision punching. The production of automobile fine blanking parts is mainly based on strong edge pressing precision punching. The geometric shape, dimensional tolerance, form and position tolerance and shear surface quality of fine blanking parts are much higher than those of ordinary punching parts. Fine blanking technology plays a great role in the field of automobile parts manufacturing.

[0004] Although the structure and complexity of various stamping dies are different, and the parts that make up the dies are diverse, they are always divided into upper dies and lower dies. The upper die is generally fixed to the slide of the press through the die handle, and moves up and down along the press guide rail with the slide, while the lower die is fixed to the workbench of the press.

[0005] A stamping part often needs to go through multiple stamping processes to be completed. Due to the differences in stamping parts shapes, dimensional accuracy, production batches, raw materials, etc., the stamping processes are also diverse, but can be roughly divided into two categories: separation process and forming process. The separation process refers to the process of separating the stamping parts and the sheet metal along a certain contour line, such as: cutting, punching, blanking, incision, trimming, etc. The forming process refers to the process of plastic deformation of the material without breaking, so as to obtain parts with certain shapes, sizes and precision requirements, such as: bending, drawing, flanging, bulging, shaping, etc.

[0006] At present, the known product correction process mainly includes manually beating the product deformation point or using a concave and convex point mold to correct the product. The known product finishing process includes using a mold to fine-blanket or manually polish the peripheral structure of the product.

[0007] However, the currently known correction processes have many defects. Manual correction cannot complete products with large deformation and thickness. The main problem is that the accuracy of manual correction is not high enough to complete the process with high strength. The pressure of the concave and convex point mold cannot be adjusted due to the limitation of the machine, and it is easy to crush the product when the pressure is too high. For products with high temperature, secondary deformation and other problems will occur due to cooling and shrinkage after correction.

[0008] Moreover, the currently known orthopedic process and fine-blanking process are separate processes and cannot be completed independently by a set of molds, which wastes production equipment and productivity, occupies production space and affects production efficiency. The main reason why they cannot be combined is that the product needs to be bent for orthopedic purposes, and the product shape changes with the closing of the mold, but the fine-blanking mold requires the product to be completed in a static environment. In addition, the up and down movement of the fine-blanking mold tool will interfere with the orthopedic process, affecting the flatness and flatness adjustment, so the two processes cannot be carried out at the same time. Summary of the invention

[0009] Based on this, the purpose of the present invention is to provide a comprehensive mold for product correction and fine blanking, which has the advantages of realizing the two processes of correction and fine blanking by a set of molds independently, while improving the correction accuracy and avoiding excessive temperature of the product.

[0010] A comprehensive mold for product correction and fine blanking, comprising a main machine upper mold, a main machine lower mold located directly below the main machine upper mold, an orthopedic component arranged on the main machine upper mold, a punching upper mold mechanism arranged on the main machine upper mold, and a punching lower mold mechanism arranged on the main machine lower mold;

[0011] The punching upper die mechanism comprises an upper oil cylinder arranged above the upper die of the main machine, a push plate connected to the lower output end of the upper oil cylinder, an upper push rod connected to the bottom of the push plate and parallel to the orthopedic component, a cutter disc connected to the bottom of the upper push rod, and a punching knife arranged at the lower end of the cutter disc; the orthopedic component passes through the cutter disc;

[0012] The punching lower die mechanism comprises a lower oil cylinder arranged at the bottom of the main machine lower die, a lower push rod connected to the upper output end of the lower oil cylinder, and a supporting punch connected to the upper top of the lower push rod.

[0013] Compared with the prior art, the integrated mold for product correction and fine blanking of the present invention adopts a cutter disc separation structure. Without interfering with the main structure of the host machine, the cutter and its fixed structure are changed into a directional movable structure, and controlled by an independent unit, thereby avoiding the phenomenon of product deformation causing correction and fine blanking to interfere with each other, and realizing that the correction and fine blanking processes are completed independently by a set of molds, forming an energy-saving and efficient coherent process. In addition, it also ensures the convenience of separate debugging of the two processes.

[0014] Furthermore, the orthopedic component includes an extruded copper head, a fixing nut, a guide rod, a spring fixing rod and a spring connected in sequence; the guide rod is a hollow cylindrical structure; the extruded copper head is fixed to the guide rod through the fixing nut; the spring is fixed to the guide rod through the spring fixing rod, so that the pressure of the orthopedic component can be fine-tuned, solving the technical problem of insufficient precision of manual orthopedics and excessive strength of mechanical orthopedics.

[0015] Furthermore, there are multiple orthopedic components, which can complete the orthopedic work on multiple parts of the product in one process.

[0016] Furthermore, it also includes a spray pipe arranged on the upper mold of the main machine, which is used to cool the equipment and the product, reduce the temperature of the high-temperature product and thus avoid secondary deformation of the product at high temperature.

[0017] Furthermore, it also includes a diverter valve; there are multiple spray pipes, which are respectively connected to the diverter valves, so that the equipment and products can be sprayed and cooled from multiple angles to enhance the cooling effect.

[0018] Furthermore, the orthopedic component also includes a pressure sensor arranged on the spring fixing rod, which is used to sense the pressure of the orthopedic component, so as to record and serve as a basis for adjusting the orthopedic force, thereby improving the orthopedic accuracy and quality.

[0019] Furthermore, the upper mold of the main machine is provided with a thermometer for sensing the temperature of the equipment and the product, which serves as a basis for using a spray pipe for cooling, making the cooling effect more accurate.

[0020] For better understanding and implementation, the present invention is described in detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the mold structure of the present invention;

[0022] Figure 2 It is a schematic diagram of the structure of the orthopedic component of the present invention;

[0023] Figure 3 is a perspective exploded view of the orthopedic component of the present invention;

[0024] Figure 4 It is a three-dimensional schematic diagram of the mold of the present invention;

[0025] Figure 5 This is a schematic diagram of the product inlet of the present invention;

[0026] Figure 6 for Figure 5 A partial enlarged view of middle A.

[0027] 1. Main machine upper die; 11. Fixed plate; 2. Main machine lower die; 3. Orthopedic component; 31. Extrusion copper head; 32. Fixed nut; 33. Guide rod; 34. Spring fixing rod; 35. Spring; 41. Upper oil cylinder; 42. Push plate; 43. Upper push rod; 44. Cutter disc; 45. Punch knife; 51. Lower oil cylinder; 52. Lower push rod; 53. Support punch knife; 61. Spray pipe; 62. Diverter valve; 7. Pneumatic cleaning device. DETAILED DESCRIPTION

[0028] Please see attached Figure 1 , a comprehensive mold for product orthopedics and fine punching, comprising a main machine upper mold 1, a main machine lower mold 2, an orthopedic component 3, a punching upper mold mechanism and a punching lower mold mechanism. The main machine lower mold 2 is located directly below the main machine upper mold 1. The orthopedic component 3 is arranged on the main machine upper mold 1. The punching upper mold is arranged on the main machine upper mold 1. The punching lower mold mechanism is arranged on the main machine lower mold 2. The main machine upper mold 1, the main machine lower mold 2 and the orthopedic component 3 are combined into a set of orthopedic molds that can be operated independently. The punching upper mold mechanism and the punching lower mold mechanism are combined into a set of punching molds that can be operated independently. The product is placed on the main machine lower mold 2, and the orthopedic treatment is first performed, and then the punching treatment is performed.

[0029] The main machine upper mold 1 and the main machine lower mold 2 are connected by a plurality of guide pillars. The top of the main machine lower mold 2 is provided with a support surface for supporting the product. The orthopedic component 3 is arranged at the lower end of the main machine upper mold 1.

[0030] The upper die mechanism includes an upper oil cylinder 41, a push plate 42, an upper push rod 43, a knife disc 44 and a punch 45. The upper oil cylinder 41 is located above the upper die 1 of the main machine. The push plate 42 is connected to the lower output end of the upper oil cylinder 41 and is located above the upper die 1 of the main machine. The upper push rod 43 is connected to the bottom of the push plate 42 and inserted into the upper die 1 of the main machine, parallel to the orthopedic component 3. The knife disc 44 is connected to the bottom of the upper push rod 43 and is provided with a plurality of circular holes that are connected up and down and whose diameters match the orthopedic components. The orthopedic components 3 pass through the knife disc 44 through the circular holes. The punch 45 is arranged at the lower end of the knife disc 44.

[0031] The punching upper die mechanism comprises a lower oil cylinder 51, a lower push rod 52 and a supporting punch 53. The lower oil cylinder 51 is arranged at the bottom of the main machine lower die 2. The lower push rod 52 is connected to the upper output end of the lower oil cylinder 51 and inserted into the main machine lower die 2. The supporting punch is connected to the upper top of the lower push rod 52.

[0032] Please see attached Figure 2 and 3 The orthopedic component 3 includes an extruded copper head 31, a fixing nut 32, a guide rod 33, a spring fixing rod 34 and a spring 35 connected in sequence. The guide rod 33 is a hollow cylindrical structure, and is provided with threads matching the extruded copper head 31 and the spring fixing rod 34. One end of the extruded copper head 31 is threadedly connected to the guide rod 33, and the other end is used to perform orthopedic treatment on the product. The fixing nut 32 is provided with threads matching the extruded copper head 31, and the extruded copper head 31 is fixed to the guide rod 33. One end of the spring fixing rod 34 is threadedly connected to the guide rod 33, and the other end is in the shape of a long rod and inserted into the spring 35. The spring 35 is fixed to the guide rod 33 through the spring fixing rod.

[0033] Preferably, there are multiple orthopedic components 3, each of which performs orthopedic treatment on different parts of the product. Further preferably, the orthopedic component 3 also includes a pressure sensor disposed on the spring fixing rod 34, for sensing the pressure of the orthopedic component 3.

[0034] Please see attached Figure 4 The main machine upper mold 1 is provided with a fixed plate 11. The orthopedic component 3 and the upper push rod 43 both pass through the fixed plate 11. The fixed plate 11 is provided with a plurality of spray pipes 61, a diverter valve 62 and a solenoid valve. One end of the spray pipe 61 is respectively connected to the diverter valve 62, and the other end passes through the fixed plate 11 and points to the orthopedic component 3 and the product. The diverter valve 62 is connected to the solenoid valve. Preferably, the fixed plate 11 is also provided with a thermometer for sensing the temperature of the device and the product.

[0035] Preferably, the main machine lower mold 2 is provided with a pneumatic cleaning device 7 for processing waste materials.

[0036] Please see attached Figure 5 and 6 Preferably, a feed inlet with a rounded structure is provided at the top supporting surface of the main lower mold 2 to move the stress concentration point backward to avoid product deformation. Figure 5 The structure in the middle right refers to the product.

[0037] Working principle:

[0038] For the orthopedic component 3, firstly, the extruded copper head 31, the fixing nut 32, the guide rod 33, the spring fixing rod 34 and the spring 35 are connected in sequence, and then the contraction amount of the spring 35 is controlled by adjusting the extension length of the extruded copper head 31, so that the spring 35 provides different pressures according to the contraction amount. After the adjustment is completed, it is fixed with the fixing nut 32, thereby controlling the extrusion strength of the orthopedic component 3.

[0039] When using the device, first put the product on the support surface at the top of the main machine lower mold 2, then control the main machine upper mold 1 to move downward, drive the orthopedic component 3 to press the product, so that the product is in an orthopedic state, close to the support surface, and forms a stable state.

[0040] After being pressed to the stroke control point, the lower oil cylinder 51 is controlled to move upward, driving the lower push rod 52 to push the support punch 53 to the product surface for punching support. After the support punch 53 moves to the stroke limit, the lower oil cylinder 51 maintains pressure to maintain the support force on the product.

[0041] After the pressure-maintaining function is started, the upper oil cylinder 41 is controlled to move downward, driving the push plate 42 to squeeze the upper push rod 43 to push the cutter disc 44 and the punch 45 downward, thereby performing a fine punching process on the product.

[0042] After the fine punching stroke is in place, the upper oil cylinder 41 maintains pressure and performs correction and fixation for 10 seconds.

[0043] At the same time, the water supply time is controlled by the solenoid valve, and the water flows to the spray pipe through the diverter valve 62. The product is sprayed and cooled by adjusting the angle of the spray pipe 61 to reduce the product temperature and prevent the product from cooling and deforming again in an empty environment.

[0044] After 10 seconds, the upper oil cylinder 41 retreats, and the continuous pressure of the orthopedic component 3 is used to make the punch 45 retreat first, avoiding the problem of orthopedic rebound and the punch upwards tightly holding the product and causing deformation. Finally, the lower oil cylinder 51 is recovered, completing the whole process and taking out the product.

[0045] Compared with the prior art, the integrated mold for product correction and fine blanking described in the present invention adopts a knife disc separation structure. Without interfering with the main structure of the host machine, the tool and its fixed structure are changed into a fixed support movable structure, and controlled by an independent unit, so as to avoid the phenomenon that correction and fine blanking interfere with each other due to product deformation, and realize that the two processes of correction and fine blanking are independently completed by a set of molds, forming an energy-saving and efficient coherent process. In addition, it ensures the convenience of separate debugging of the two processes. At the same time, the correction component adopts an elastic extrusion component, thereby solving the technical problem of insufficient precision of manual correction and excessive strength of mechanical correction. In addition, it forms a cooling system by adopting a spray component to avoid secondary deformation of the product at high temperature.

[0046] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In the description of the present invention, unless otherwise specified, "multiple" means two or more, and "multiple" means two or more.

[0047] The above-mentioned embodiments only express several implementation methods of the present invention, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the invention patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention.

Claims

1. A comprehensive mold for product correction and fine blanking, characterized by: The invention comprises an orthopedic mold and a punching mold which can be operated independently, wherein the orthopedic mold comprises a mainframe upper mold, a mainframe lower mold located directly below the mainframe upper mold, and an orthopedic component arranged on the mainframe upper mold; the punching mold comprises a punching upper mold mechanism arranged on the mainframe upper mold, and a punching lower mold mechanism arranged on the mainframe lower mold; The punching upper die mechanism comprises an upper oil cylinder arranged above the upper die of the main machine, a push plate connected to the lower output end of the upper oil cylinder, an upper push rod connected to the bottom of the push plate and parallel to the orthopedic component, a cutter disc connected to the bottom of the upper push rod, and a punching knife arranged at the lower end of the cutter disc; the orthopedic component passes through the cutter disc; The punching lower die mechanism comprises a lower oil cylinder arranged at the bottom of the lower die of the main machine, a lower push rod connected to the upper output end of the lower oil cylinder, and a supporting punch connected to the upper top of the lower push rod; The orthopedic component includes an extruded copper head, a fixing nut, a guide rod, a spring fixing rod and a spring connected in sequence; the guide rod is a hollow cylindrical structure; the extruded copper head is threadedly connected to the guide rod and fixed to the guide rod through the fixing nut; the spring is fixed to the guide rod through the spring fixing rod.

2. The integrated mold for product correction and fine blanking according to claim 1 is characterized in that: The orthopedic components are multiple.

3. The integrated mold for product correction and fine blanking according to claim 1 is characterized in that: It also includes a spray pipe arranged on the upper mold of the main machine.

4. The integrated mold for product correction and fine blanking according to claim 3 is characterized by: It also includes a diverter valve; there are multiple spray pipes, which are respectively connected to the diverter valves.

5. The integrated mold for product correction and fine blanking according to claim 2 is characterized in that: The orthopedic component further comprises a pressure sensor arranged on the spring fixing rod, for sensing the pressure of the orthopedic component.

6. The integrated mold for product correction and fine blanking according to claim 4 is characterized in that: The main machine upper mold is provided with a thermometer.

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