Metal shaping stamping die driven by oil press and stamping method

Abstract

According to the metal shaping stamping die driven by the oil press and the stamping method, an upper pressing plate, an upper die sleeve, a lower die sleeve, two sets of side pressing assemblies, a die pressing assembly and a lower base are arranged in a matched mode, a metal structural part to be machined is placed on a lower die core, and after the upper die sleeve and the lower die sleeve are assembled, the upper die sleeve and the lower die sleeve are pressed into the lower die core. The upper die core and the lower die core are made to extrude the top face of the to-be-machined metal structural part in the vertical direction for preset time, the extrusion part on the upper die sleeve drives the two side pressing assemblies to extrude the side faces of the to-be-machined metal structural part for preset time, and multi-face simultaneous forming of the to-be-machined metal structural part can be completed at the same time; and the processing efficiency is improved, the use of dies is effectively reduced, and the cost is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of metal shaping and stamping, and in particular to a metal shaping and stamping die driven by a hydraulic press and a stamping method. Background Art

[0002] Plastic deformation of metals refers to the irreversible permanent deformation of metal parts under the action of external forces. The reason for plastic deformation is the slip dislocation of atoms. At present, metal shaping is usually achieved by the existing metal hydraulic molds through pressure shaping, extrusion deformation, force support and other means to achieve the size forming of metal structural parts.

[0003] However, the existing metal hydraulic mold can only form the metal structural parts that need to be processed and formed on one side at a time. If the metal structural parts need to be processed and formed on multiple sides, multiple metal hydraulic molds need to be used to process different sides multiple times to complete the multi-sided forming of the metal structural parts, which wastes resources and reduces the processing efficiency. Summary of the invention

[0004] Based on this, it is necessary to provide a metal shaping stamping die and stamping method driven by a hydraulic press to address the problem of low processing efficiency of metal structural parts that require multi-sided forming.

[0005] The present invention provides a metal shaping stamping die driven by a hydraulic press, comprising an upper pressing plate, an upper die sleeve, a lower die sleeve, two groups of side pressure components, a pressing module component and a lower base, the lower die sleeve is installed on the lower base and has a preset gap with the lower base, the lower die sleeve has a lower die core, the pressing module component has an ejector pin, the pressing module component is elastically arranged in the preset gap and the ejector pin is inserted through the lower die core, the two groups of side pressure components are symmetrically accommodated on both sides of the lower die sleeve, the upper die core is provided at a position on the upper die sleeve that matches the lower die core, extrusion pieces are symmetrically arranged on both sides of the upper die sleeve, when the upper die sleeve and the lower die sleeve are closed, the upper die core is extruded with the lower die core, the extrusion piece is extruded with the two groups of side pressure components, and the upper pressing plate is installed on the top surface of the upper die sleeve.

[0006] In one of the embodiments, the side pressure assembly includes a sliding block, a bolt, a spring fixing plate and a first spring. The bolt is passed through the spring fixing plate and is threadedly connected to the sliding block, so that a gap of a preset distance is provided between the sliding block and the spring fixing plate. The first spring is passed through the bolt and its two ends are respectively abutted against the spring fixing plate and the bolt cap of the bolt.

[0007] In one embodiment, a side of the sliding block close to the spring fixing plate has a first inclined surface structure.

[0008] In one embodiment, a second inclined surface structure is provided at a position on the extrusion member that matches the first inclined surface structure.

[0009] In one embodiment, the pressing module assembly includes a mounting seat and a second spring, the ejector pin is mounted on the top surface of the mounting seat, one end of the second spring is mounted on the bottom surface of the mounting seat, and the other end is mounted on the lower base.

[0010] In one embodiment, the lower base includes a bottom plate and two symmetrically arranged limit blocks, and the two limit blocks are symmetrically arranged on the bottom plate.

[0011] In one embodiment, accommodating grooves are symmetrically formed on both sides of the lower mold sleeve, and the sliding blocks are accommodated in the accommodating grooves.

[0012] In one of the embodiments, pressure blocks are symmetrically arranged at both ends of the accommodating groove on the lower mold sleeve, and the pressure blocks are used to abut against both ends of the sliding block.

[0013] In one embodiment, the stamping device further includes a third spring, one end of which is mounted on the lower die sleeve, and the other end of which is fixedly connected to the pressing block.

[0014] A stamping method for a metal shaping stamping die driven by a hydraulic press, applied to the metal shaping stamping die, the processing method comprising: Separating the upper die sleeve from the lower die sleeve along the vertical direction; Placing the metal structural part to be processed on the lower die core of the lower die sleeve; The ejector pin on the pressing module assembly lifts up the metal structural part to be processed; Driving the upper die sleeve and the lower die sleeve to close the mold, so that the upper die core and the lower die core extrude the top surface of the metal structural part to be processed in the vertical direction for a preset time; Pressing the pressing module assembly back to the initial position; The extrusion member on the upper die sleeve drives the two sets of side pressure components to extrude the side of the metal structural member to be processed for a preset time; Separating the upper die sleeve from the lower die sleeve along the vertical direction; The ejector pins on the pressing die assembly eject the processed metal structural parts from the lower die core.

[0015] Compared with the prior art, the present invention has the following beneficial effects: The above-mentioned metal shaping stamping die and stamping method driven by an oil hydraulic press, through the coordinated arrangement of an upper pressing plate, an upper die sleeve, a lower die sleeve, two sets of side pressure components, a pressing module assembly and a lower base, places the metal structural part to be processed on the lower die core. After the upper die sleeve and the lower die sleeve are closed, the upper die core and the lower die core are extruded in the vertical direction on the top surface of the metal structural part to be processed for a preset time. The extrusion part on the upper die sleeve drives the two sets of side pressure components to extrude the side surfaces of the metal structural part to be processed for a preset time, and the multi-sided forming of the metal structural part to be processed can be completed simultaneously, thereby improving the processing efficiency, effectively reducing the use of molds, and reducing costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the exploded structure of a metal shaping stamping die driven by a hydraulic press according to an embodiment of the present invention; Figure 2 The present invention is a schematic structural diagram of an upper die sleeve of a metal shaping stamping die driven by a hydraulic press according to an embodiment of the present invention; Figure 3 This is a schematic structural diagram of a lower die sleeve of a metal shaping stamping die driven by a hydraulic press according to an embodiment of the present invention; Figure 4 It is a structural schematic diagram of a side pressure assembly of a metal shaping stamping die driven by a hydraulic press according to an embodiment of the present invention; Figure 5 It is a structural schematic diagram of a pressing module assembly of a metal shaping stamping die driven by a hydraulic press according to an embodiment of the present invention; Figure 6 This is a schematic structural diagram of a lower base of a metal shaping stamping die driven by a hydraulic press according to an embodiment of the present invention; Figure 7 The present invention is a flowchart of a lower base of a stamping method of a metal shaping stamping die driven by a hydraulic press according to an embodiment of the present invention. DETAILED DESCRIPTION

[0017] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present invention, so the present invention is not limited by the specific embodiments disclosed below.

[0018] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may also be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. In contrast, when an element is referred to as being "directly on" another element, there is no intermediate element. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only."

[0019] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0020] like Figure 1 and Figure 2 As shown, a metal shaping stamping die driven by a hydraulic press comprises an upper pressing plate 1, an upper die sleeve 2, a lower die sleeve 3, two sets of side pressing components 4, a pressing module component 5 and a lower base 6, wherein the lower die sleeve 3 is installed on the lower base 6 and has a preset gap 7 with the lower base 6, the lower die sleeve 3 has a lower die core 31, the pressing module component 5 has an ejector pin 51, the pressing module component 51 is elastically arranged in the preset gap 7 and the ejector pin 51 penetrates and is inserted into the lower base 6. The mold core 31, the two groups of side pressure components 4 are symmetrically accommodated on both sides of the lower mold sleeve 3, the upper mold core 21 is provided at a position on the upper mold sleeve 2 that matches the lower mold core 31, and the extrusion parts 22 are symmetrically arranged on both sides of the upper mold sleeve 2. When the upper mold sleeve 2 and the lower mold sleeve 3 are closed, the upper mold core 21 is extruded with the lower mold core 31, and the extrusion parts 22 are extruded with the two groups of side pressure components 4, and the upper pressure plate 1 is installed on the top surface of the upper mold sleeve 2.

[0021] The movement of the upper pressing plate 1 can drive the upper die set 2 to move together. The upper pressing plate 1 is controlled by a hydraulic press, which is connected to the PLC to realize dataization and linkage with the equipment data to achieve automatic and precise control, easy operation, more convenient, intelligent and data-based.

[0022] When the metal structure to be processed needs to be processed, the upper pressing plate 1 and the upper die sleeve 2 are separated from the lower die sleeve 3 by the hydraulic press. At this time, the ejector pin 51 on the pressing module assembly 5 is ejected from the lower die core 31, and the metal structure to be processed is placed on the lower die core 31 of the lower die sleeve 3 and is lifted by the ejector pin 51. The hydraulic press drives the upper die sleeve 2 and the lower die sleeve 3 to close the mold through the upper pressing plate 1, so that the upper die core 21 and the lower die core 31 extrude the top surface of the metal structure 8 to be processed for a preset time, so that the top surface of the metal structure 8 to be processed is formed. The ejector pin 51 is restored to the initial position. At this time, the extrusion members 22 symmetrically arranged on both sides of the upper die sleeve 2 drive the two sets of side pressure assemblies 4 to move toward the side of the metal structure to be processed, until they are extruded on both sides of the metal structure 8 to be processed for a preset time, so that the side of the metal structure 8 to be processed is formed. The hydraulic press drives the upper pressing plate 1 and the upper die sleeve 2 to separate from the lower die sleeve 3 , and the ejector pin 51 on the pressing die block assembly 5 ejects the formed metal structure 8 from the lower die core 31 .

[0023] In this way, a metal shaping stamping die driven by a hydraulic press places the metal structural part 8 to be processed on the lower die core 31 through the coordinated arrangement of the upper pressing plate 1, the upper die sleeve 2, the lower die sleeve 3, the two sets of side pressure components 4, the pressing module component 5 and the lower base 6. After the upper die sleeve 2 and the lower die sleeve 3 are closed, the upper die core 21 and the lower die core 31 are vertically extruded on the top surface of the metal structural part 8 to be processed for a preset time, and the extrusion member 22 on the upper die sleeve 2 drives the two sets of side pressure components 4 to extrude the side of the metal structural part 8 to be processed for a preset time, so that the multi-side simultaneous forming of the metal structural part 8 to be processed can be completed at the same time, thereby improving the processing efficiency, effectively reducing the use of molds, and reducing costs.

[0024] like Figure 4 As shown, in one embodiment, the side pressure assembly 4 includes a sliding block 41, a bolt 42, a spring fixing plate 43 and a first spring 44. The bolt 42 is passed through the spring fixing plate 43 and is threadedly connected to the sliding block 41, so that a gap 45 of a preset distance is provided between the sliding block 41 and the spring fixing plate 43. The first spring 44 is passed through the bolt 42 and its two ends are respectively abutted against the spring fixing plate 43 and the bolt cap of the bolt 42.

[0025] The sliding block 41 has a first inclined surface structure 411 on one side close to the spring fixing plate 43 , and the extrusion member 22 has a second inclined surface structure 221 at a position matching the first inclined surface structure 411 .

[0026] In this way, the gap 45 is used to accommodate the extrusion piece 22. Through the cooperation of the sliding block 41, the bolt 42, the spring fixing plate 43 and the first spring 44, the spring fixing plate 43 can move toward the bolt cap of the bolt 42 under the action of external force. The gap 45 can accommodate extrusion pieces 22 of different thicknesses, and has a wider applicability.

[0027] like Figure 5 As shown, in one embodiment, the pressing module assembly 5 includes a mounting seat 52 and a second spring, the ejector pin 51 is installed on the top surface of the mounting seat 52, one end of the second spring is installed on the bottom surface of the mounting seat 52, and the other end is installed on the lower base 6.

[0028] In this way, when the ejector pin 51 is squeezed by an external force, the ejector pin 51 and the mounting seat 52 move toward the lower base 6. At this time, the second spring is in a compressed deformation state, and the ejector pin 51 retracts into the lower mold core 31. When there is no external force squeezing the ejector pin 51, the second spring recovers its deformation, so that the mounting seat 52 drives the ejector pin 51 to be ejected from the lower mold core 31. like Figure 6 As shown, in one embodiment, the lower base 6 includes a bottom plate 61 and two symmetrically arranged limit blocks 62 , and the two limit blocks 62 are symmetrically arranged on the bottom plate 61 .

[0029] In this way, the two limiting blocks 62 can play a certain limiting role on the mounting seat 52 to prevent the mounting seat 52 from causing position deviation during the movement process, thereby preventing the position deviation of the ejector pin 51.

[0030] like Figure 3 As shown, in one of the embodiments, the lower mold sleeve 3 is symmetrically provided with accommodating grooves 32 on both sides, and the sliding block 41 is accommodated in the accommodating grooves 32; the two ends of the accommodating grooves 32 on the lower mold sleeve 3 are symmetrically provided with pressing blocks 33, and the pressing blocks 33 are used to abut against the two ends of the sliding block 41.

[0031] Thus, there are two groups of accommodating grooves 32, which are respectively arranged on both sides of the lower die sleeve 3, for respectively accommodating two groups of side pressure assemblies 4. In this embodiment, there are four pressing blocks 33. When the sliding block 41 is accommodated in the accommodating grooves 32, the pressing blocks 33 respectively abut against both sides of the sliding block 41. When the extrusion member 22 pushes the sliding block 41 to move toward the side of the lower die core 31, the pressing blocks 33 always abut against the sliding block 41 to prevent the position of the sliding block 41 from being offset.

[0032] In one embodiment, the punching device further includes a third spring, one end of which is mounted on the lower die sleeve 3 , and the other end of which is fixedly connected to the pressing block 33 .

[0033] In this way, by setting the third spring, under the action of the third spring, the pressing block 33 and the sliding block 41 are always in contact with each other, and the third spring can also play a buffering role to avoid hard contact between the pressing block 33 and the sliding block 41.

[0034] like Figure 7 As shown, a stamping method of a metal shaping stamping die driven by a hydraulic press is applied to the metal shaping stamping die, and the processing method includes: S1, separating the upper die sleeve 2 from the lower die sleeve 3 in the vertical direction; using an external hydraulic press to drive the upper die sleeve 2 and the lower die sleeve 3 to separate through the upper pressing plate 1; S2, placing the metal structural part 8 to be processed on the lower die core 31 of the lower die sleeve 3; S3, the ejector pin 51 on the pressing module assembly 5 lifts up the metal structural part 8 to be processed; the ejector pin 51 is lifted up by the second spring; S4, driving the upper die sleeve 2 and the lower die sleeve 3 to close the die, so that the upper die core and the lower die core extrude the top surface of the metal structure to be processed in the vertical direction for a preset time; the hydraulic press is controlled by the PLC, and the extrusion time is also set by the PLC; S5, pressing the pressing module assembly 5 back to the initial position; the second spring is compressed under the action of external force, so that the ejector pin 51 returns to the initial position and retracts into the lower mold core 31; S6, the extrusion member 22 on the upper die sleeve 2 drives the two sets of side pressure components 4 to extrude the side of the metal structural member 8 to be processed for a preset time; the preset time is set by the PLC; S7, separating the upper die sleeve 2 and the lower die sleeve 3 along the vertical direction; S8, the ejector pin 51 on the pressing die assembly 5 ejects the processed metal structure 8 from the lower die core 31. After the ejector pin 51 ejects the processed metal structure 8 from the lower die core 31, the processed metal part can be recovered.

[0035] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0036] The above-mentioned embodiments only express several implementation methods of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

Claims

1. A metal shaping stamping die driven by a hydraulic press, characterized in that: It includes an upper pressing plate, an upper die sleeve, a lower die sleeve, two groups of side pressing assemblies, a pressing module assembly and a lower base, the lower die sleeve is installed on the lower base and has a preset gap with the lower base, the lower die sleeve has a lower die core, the pressing module assembly has an ejector pin, the pressing module assembly is elastically arranged in the preset gap and the ejector pin penetrates and is inserted in the lower die core, the two groups of side pressing assemblies are symmetrically accommodated on both sides of the lower die sleeve, the upper die core is provided at a position on the upper die sleeve that matches the lower die core, extrusion pieces are symmetrically arranged on both sides of the upper die sleeve, when the upper die sleeve and the lower die sleeve are closed, the upper die core is extruded with the lower die core, and the extrusion piece is extruded with the two groups of side pressing assemblies, and the upper pressing plate is installed on the top surface of the upper die sleeve.

2. The metal shaping stamping die driven by a hydraulic press according to claim 1, characterized in that: The side pressure assembly includes a sliding block, a bolt, a spring fixing plate and a first spring. The bolt is passed through the spring fixing plate and is threadedly connected to the sliding block so that a gap of a preset distance is provided between the sliding block and the spring fixing plate. The first spring is passed through the bolt and two ends of the first spring are respectively abutted against the spring fixing plate and the bolt cap of the bolt.

3. The metal shaping stamping die driven by a hydraulic press according to claim 2, characterized in that: A side of the sliding block close to the spring fixing plate has a first inclined surface structure.

4. The metal shaping stamping die driven by a hydraulic press according to claim 3, characterized in that: A second inclined surface structure is provided at a position on the extrusion piece that matches the first inclined surface structure.

5. The metal shaping stamping die driven by a hydraulic press according to claim 1, characterized in that: The pressing module assembly includes a mounting seat and a second spring. The ejector pin is mounted on the top surface of the mounting seat. One end of the second spring is mounted on the bottom surface of the mounting seat, and the other end is mounted on the lower base.

6. The metal shaping stamping die driven by a hydraulic press according to claim 1, characterized in that: The lower base comprises a bottom plate and two symmetrically arranged limit blocks, and the two limit blocks are symmetrically arranged on the bottom plate.

7. The metal shaping stamping die driven by a hydraulic press according to claim 2, characterized in that: Accommodation grooves are symmetrically provided on both sides of the lower mold sleeve, and the sliding blocks are accommodated in the accommodation grooves.

8. The metal shaping stamping die driven by a hydraulic press according to claim 7, characterized in that: Pressing blocks are symmetrically arranged at both ends of the accommodating groove on the lower mold sleeve, and the pressing blocks are used to abut against both ends of the sliding block.

9. The metal shaping stamping die driven by a hydraulic press according to claim 8, characterized in that: The punching device also includes a third spring, one end of which is mounted on the lower die sleeve, and the other end of which is fixedly connected to the pressing block.

10. A stamping method for a metal shaping stamping die driven by a hydraulic press, characterized in that: Applied to the metal shaping stamping die according to any one of claims 1 to 9, the processing method comprises: Separating the upper die sleeve from the lower die sleeve along the vertical direction; Placing the metal structural part to be processed on the lower die core of the lower die sleeve; The ejector pin on the pressing module assembly lifts up the metal structural part to be processed; Driving the upper die sleeve and the lower die sleeve to close the mold, so that the upper die core and the lower die core extrude the top surface of the metal structural part to be processed in the vertical direction for a preset time; Pressing the pressing module assembly back to the initial position; The extrusion member on the upper die sleeve drives the two sets of side pressure components to extrude the side of the metal structural member to be processed for a preset time; Separating the upper die sleeve from the lower die sleeve along the vertical direction; The ejector pins on the pressing die assembly eject the processed metal structural parts from the lower die core.

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