Stamping assembly and stamping method

Abstract

The invention relates to the technical field of stamping forming, and provides a stamping assembly and a stamping method.The stamping assembly comprises a first stamping die, a second stamping die and a forming assembly; the first stamping die and the second stamping die can be correspondingly arranged to form a die pressing space; the forming assembly can be completely or partially arranged in the die pressing space; the forming assembly is used for carrying out die pressing on a target part in the base material and can enable a first part of medium in the target part to flow along a first direction to form a first convex structure and a second part of medium in the target part to flow along a second direction to form a second convex structure corresponding to the first convex structure in position; the first direction is different from the second direction. The stamping method comprises the steps that a target part in a base material is stamped, a first part of medium in the target part moves in the first direction to form a first protruding structure, and a second part of medium in the target part moves in the second direction to form a second protruding structure corresponding to the first protruding structure in position; the first direction is different from the second direction.

Description

Technical Field

[0001] The present disclosure relates to the field of stamping forming technology, and in particular to a stamping component and a stamping method. Background Art

[0002] With the continuous development of laptop computers, metal aluminum stamping is widely used in the appearance of laptops. The requirements for the refinement of the appearance are getting higher and higher. The parts processed by stamping technology have a better appearance. Summary of the invention

[0003] The embodiments of the present disclosure provide a stamping assembly and a stamping method, in order to solve the problem in the related art that when a protruding structure is stamped on a conventional thin-shell aluminum material, extrusion cracks may form on the side facing away from the stamped protruding structure.

[0004] The stamping assembly provided by the embodiment of the present disclosure includes a first stamping die, a second stamping die and a forming assembly;

[0005] The first stamping die and the second stamping die are arranged corresponding to each other to form a stamping die space;

[0006] The molding assembly is located in the die space;

[0007] The molding assembly is used to mold the target portion in the substrate, and can make the first part of the medium in the target portion flow along the first direction to form a first convex structure, and the second part of the medium in the target portion flow along the second direction to form a second convex structure corresponding to the position of the first convex structure;

[0008] The first direction is different from the second direction.

[0009] In one possible embodiment, the molding assembly includes a first molding member and a second molding member;

[0010] The first forming member is arranged on a side of the first stamping die facing the die space;

[0011] The second molding member is arranged on a side of the second stamping die facing the die space;

[0012] Wherein, the first molding piece is used to mold the first protruding structure, and the first molding piece can form an angle of 0° to 180° with one side of the substrate;

[0013] The second molding piece is used to mold the second protruding structure, and the second molding piece can form an angle of 0° to 180° with the other opposite side of the substrate.

[0014] In one possible implementation, the second molded part includes a recessed portion opened in the second stamping die;

[0015] When the molding assembly is pressing the target portion, the recessed portion is used for a second portion of the medium in the target portion to flow and fill, so as to bulge to form the second bulge structure.

[0016] In one possible embodiment, the second molded part includes a target part disposed in the second stamping die;

[0017] When the molding assembly is pressing the target part, the target part correspondingly adsorbs the target part and can drive the second part of the medium in the target part to bulge away from the substrate to form a second bulge structure.

[0018] In one possible implementation, the first forming member includes a punch head and a punch core inserted into the punch head;

[0019] Wherein, the punch head and the punch core can be assembled to form die gaps of different volumes;

[0020] The first stamping die and the second stamping die can at least stamp the substrate through two stamping die gaps of different sizes.

[0021] In one embodiment, the first forming member includes a plurality of replaceable punching heads;

[0022] Each of the punch heads has a first punch face and a second punch face recessed in the first punch face;

[0023] A face difference H is formed between the first punch face and the second punch face;

[0024] Among them, the surface differences H of the multiple punching heads are different.

[0025] In one embodiment, the first forming member further comprises a plurality of punching cores replaceably disposed in the punching head;

[0026] The core rod portion of the punch core is correspondingly inserted into the second punch surface, and one end is flush with the first punch surface or exceeds the first punch surface;

[0027] Wherein, the core rod diameters of the plurality of punching cores are different.

[0028] In one possible implementation, the stamping assembly further includes a heating device;

[0029] The heating device is disposed on the first stamping die and / or the second stamping die, and is used to heat and soften a target portion in the substrate.

[0030] In addition, the stamping method provided in the embodiment of the present disclosure includes:

[0031] Punching the target portion in the substrate so that a first portion of the medium in the target portion moves in a first direction to form a first convex structure, and a second portion of the medium in the target portion moves in a second direction to form a second convex structure corresponding to the position of the first convex structure;

[0032] wherein the first direction is different from the second direction;

[0033] The first protruding structure and the second protruding structure are formed by synchronous deformation of the target portion under pressure.

[0034] In one possible implementation manner, the stamping method provided in the embodiment of the present disclosure further includes:

[0035] The portion of the second protruding structure protruding from the substrate is removed, so that the remaining second protruding structure is flush with the surface of the substrate.

[0036] In one embodiment, the second portion of the medium in the target portion forms the second protruding structure, including:

[0037] Punching the target portion so that a second portion of the medium in the target portion is formed into a second protruding structure of a first size;

[0038] Punching the second protruding structure of the first size to change the second protruding structure to a second size;

[0039] The second size is smaller than or equal to the first size.

[0040] In one embodiment, the first portion of the medium in the target portion forms the first protruding structure, including:

[0041] Performing a first punching operation on the target portion to form the first protruding structure with a first height, and punching an inner concave hole with a first caliber in the first protruding structure;

[0042] Performing a second punching on the target portion, so that the height of the first protruding structure becomes a second height, and the diameter of the punched inner concave hole becomes a second diameter;

[0043] Among them, the second height is greater than the first height, and the second caliber is smaller than the first caliber.

[0044] In one embodiment, the first portion of the medium in the target portion forms the first protruding structure, further comprising:

[0045] Punching a first recessed portion of a first depth at a periphery of the first protruding structure of a first height;

[0046] Punching a second recessed portion of a second depth at the periphery of the first protruding structure at a second height;

[0047] The second depth is greater than the first depth.

[0048] It should be understood that the content described in this section is not intended to identify the key or important features of the embodiments of the present disclosure, nor is it intended to limit the scope of the present disclosure. Other features of the present disclosure will become easily understood through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0049] The above and other objects, features and advantages of the exemplary embodiments of the present disclosure will become readily understood by reading the detailed description below with reference to the accompanying drawings. In the accompanying drawings, several embodiments of the present disclosure are shown in an exemplary and non-limiting manner, in which:

[0050] In the drawings, the same or corresponding reference numerals represent the same or corresponding parts.

[0051] Figure 1 A first structural schematic diagram of a stamping assembly provided by an embodiment of the present disclosure is shown;

[0052] Figure 2 A second structural schematic diagram of a stamping assembly provided in an embodiment of the present disclosure is shown;

[0053] Figure 3 A third structural schematic diagram of a stamping assembly provided in an embodiment of the present disclosure is shown;

[0054] Figure 4 Another schematic structural diagram of a stamping assembly provided by an embodiment of the present disclosure is shown;

[0055] Figure 5 A schematic diagram of a stamping method according to an embodiment of the present disclosure is shown;

[0056] Figure 6 A detailed schematic diagram of step S2 in the stamping method provided in an embodiment of the present disclosure is shown.

[0057] Explanation of the numbers in the figure: 1. first stamping die; 2. second stamping die; 3. molding assembly; 31. first molded part; 311. punch head; 311a. first punch face; 311b. second punch face; 312. punch core; 313. die gap; 32. second molded part; 4. heating device; 5. substrate; 51. target part; 511. first protruding structure; 512. second protruding structure; a. first direction; b. first direction. DETAILED DESCRIPTION

[0058] In order to make the purpose, features, and advantages of the present disclosure more obvious and easy to understand, the technical solutions in the embodiments of the present disclosure will be clearly and completely described below in conjunction with the drawings in the embodiments of the present disclosure. Obviously, the described embodiments are only part of the embodiments of the present disclosure, not all of the embodiments. Based on the embodiments in the present disclosure, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present disclosure.

[0059] The inventors of the present application discovered that during the stamping process, due to the thickness of the metal itself and the fluidity of the material under pressure, when stamping, the medium at point A in the material bulges outward and flows to form the prototype of the boss, which will also cause the loss of the medium at point A. Moreover, under the action of the stamping pressure, the medium at point B adjacent to the original point A in all directions flows toward the original point A for replenishment. However, when the medium at point B finally meets the original point A, there will be multiple directions of mutual convection and impact, such as but not limited to left-right and front-back directions. In this way, the medium at point B finally converges at the original point A, forming complex extrusion cracks. Moreover, the cracks are particularly conspicuous in the surface points on the side close to the back of the stamping convex structure. On the one hand, the extrusion cracks will affect the appearance of the stamped product. On the other hand, the structural strength of the product at the extrusion cracks is also relatively poor, which may even affect the quality of the stamped product in severe cases.

[0060] In view of this, the embodiments of the present disclosure provide a stamping assembly and a stamping method, which can realize the formation of a protruding structure by stamping metal, and can also eliminate the extrusion cracks generated when the material flows under pressure on the side opposite to the stamped protruding structure.

[0061] The embodiments of the present disclosure will be described in detail below with reference to the accompanying drawings.

[0062] Combination Figure 1 and Figure 4 As shown, an embodiment of the present disclosure provides a stamping assembly, which can be but is not limited to being a stamping and forming head in a stamping machine or a stamping bed, and the stamping assembly can include a first stamping die 1, a second stamping die 2 and a forming assembly 3, the first stamping die 1 and the second stamping die 2 can be but are not limited to being respectively correspondingly arranged as an upper stamping template and a lower stamping template spaced along the vertical direction, or a left stamping template and a right stamping template spaced along the horizontal direction; and the first stamping die 1 can be arranged correspondingly to the second stamping die 2 to form a die space, the first stamping die 1 can be arranged correspondingly to the second stamping die 2, that is, the projections of the two in a certain direction at least partially overlap, and the die space formed by the two can be arranged as a rectangular space, a spherical space or a special-shaped space extending in the horizontal direction, the vertical direction or other directions, etc.

[0063] The molding component 3 can be arranged in whole or in part in the die space. The molding component 3 can be arranged as a molding component with a concave-convex structure partially located in the die space, or as a molding component with a concave-convex structure wholly located in the die space.

[0064] Moreover, the molding component 3 is used to press-mold the target portion 51 in the substrate 5. The substrate 5 can be but is not limited to aluminum, a composite material, or some materials that can be used for stamping. The target portion 51 in the substrate 5 can be but is not limited to a local area, multiple local areas, or all local areas with the same thickness as the substrate 5.

[0065] The molding component 3 can make the first part of the medium in the target part 51 flow along the first direction a to form a first protruding structure 511, and the second part of the medium in the target part 51 flows along the second direction b to form a second protruding structure 512 corresponding to the position of the first protruding structure 511; the "correspondence" includes but is not limited to the first part of the medium bulging outward after being pressurized to form a "vacancy", and the medium in other parts of the substrate 5 will fill the corresponding position of the "vacancy", and the medium supplemented from other parts at least partially flows from the "vacancy" position corresponding to the second direction b, and can at least partially bulge the second part of the medium outward in the second direction b to form the second protruding structure 512. Therefore, the first protruding structure 511 and the second protruding structure 512 correspond to each other, that is, the two include but are not limited to the correspondence of the initial starting position of the first part of the medium in the substrate 5.

[0066] The first medium and the second medium in the target portion 51 may be two mediums stacked correspondingly along the thickness direction of the target portion 51 , and the first medium and the second medium may be stacked directly adjacent to each other, or may be stacked indirectly with other mediums in the substrate 5 .

[0067] In addition, the first part of the medium and the second part of the medium flow to form the first protruding structure 511 and the second protruding structure 512 respectively. The “flow” may be, but is not limited to, the first part of the medium and the second part of the medium, under the physical pressure of the molding component 3, produce a temporary dislocation and slippage in the molecular structure position, thereby “flowing” and deforming to form the first protruding structure 511 and the second protruding structure 512; the “flow” may also be the chemical reaction of the molding component 3, causing the first part of the medium and the second part of the medium to change shape and “flow” to form the first protruding structure 511 and the second protruding structure 512.

[0068] It should be understood that the above-mentioned "flow" includes all ways and means that can act to change the shapes of the first part of the medium and the second part of the medium.

[0069] Moreover, the above-mentioned first direction a is different from the second direction b, including but not limited to the difference in specific orientation and shape between the first direction a and the second direction b. The first direction a is different from the second direction b, and the essence of the result is that the second protrusion structure 512 protrudes at a place other than the first protrusion structure 511, that is, any two directions that can make the first protrusion structure 511 and the second protrusion structure 512 not overlap and bulge in the target part 51 can be used as the above-mentioned first direction a and second direction b, and the above-mentioned first direction a and second direction b can be but not limited to a straight line direction, a curve direction, a broken line direction, etc.

[0070] In an actual use of the stamping assembly, the substrate 5 to be stamped can be first placed in the stamping space formed by the first stamping die 1 and the second stamping die 2, and the molding assembly 3 can be aligned with the target portion 51 to be stamped in the substrate 5. Then, the first stamping die 1 and / or the second stamping die 2 can be pressurized by a pressurizing device. The molding assembly 3 can apply the pressure applied by the pressurizing device to the first part of the medium and the second part of the medium in the target portion 51 at the same time, so that the first part of the medium can flow along the first direction a to form a first protruding structure 511. The first protruding structure 511 can be used to process a protruding sleeve, a positioning pin, etc. in the substrate 5.

[0071] In addition, since the molding component 3 can also simultaneously make the second part of the medium flow along the second direction b to form a second protruding structure 512 corresponding to the position of the first protruding structure 511, the second direction b can be opposite to the first direction a. In this way, the second protruding structure 512 can "raise" the extrusion crack formed on the side of the substrate 5 facing away from the first protruding structure 511. Since the extrusion crack is quite protruding from the surface of one side of the substrate 5, the second protruding structure 512 and the extrusion crack can be removed from the substrate 5 together through turning, grinding, planing and other processes. In this way, the beneficial effect of stamping one side of the substrate 5 into a protruding structure and having no extrusion crack on the side facing away from the protruding structure can be achieved, thereby fully ensuring the stamping processing quality of the substrate 5.

[0072] Moreover, the above-mentioned molding component 3 can be configured as an integral part, for example, a U-shaped clamping part is specifically configured, and the two sides of the substrate 5 are correspondingly molded through two stamping parts facing each other. The molding component 3 can also be configured as two or more separate parts, which are respectively arranged in the molding space to mold the two sides of the substrate 5.

[0073] In summary, the embodiment of the present disclosure provides a stamping component. When the substrate 5 is stamped and formed, the forming component 3 therein can form a first protruding structure 511 along the first direction a of the first part of the medium in the target part 51 of the substrate 5, and form a second protruding structure 512 along the second direction b of the second part of the medium in the target part 51 of the substrate 5 by means of but not limited to physical pressing. The first protruding structure 511 can be used as a protruding component such as a protruding sleeve and a protruding positioning pin, and the second protruding structure 512 can correspond to the cracks generated on the back side when the first protruding structure 511 is formed and protrude out of the substrate 5. In this way, the second protruding structure 512 and the cracks can be directly removed from the substrate 5 together by turning and other processes, thereby realizing the beneficial effects of stamping out a protruding structure in the substrate 5 and effectively eliminating the extrusion cracks on the back side of the protruding structure, and greatly improving the quality of the stamped product. The stamped product of the substrate 5 can be directly applied to but not limited to the metal shell back plate of electronic equipment, the shell plate of aerospace devices and other scenes.

[0074] In one embodiment, the molding assembly 3 may include a first molding part 31 and a second molding part 32; the first molding part 31 may be arranged on the side of the first stamping die 1 facing the die space; the second molding part 32 may be arranged on the side of the second stamping die 2 facing the die space; wherein, the first molding part 31 is used to mold the first protruding structure 511, and the first molding part 31 can form an angle of 0° to 180° with one side of the substrate 5; the second molding part 32 is used to mold the second protruding structure 512, and the second molding part 31 can form an angle of 0° to 180° with the other opposite side of the substrate 5.

[0075] Among them, one side and the other opposite side of the substrate 5 include but are not limited to two relatively parallel horizontal sides, two relatively parallel vertical sides of the substrate 5, or an inclined side of the substrate 5 and the other opposite side is not parallel to the inclined side, or any two sides of the substrate 5 that can produce overlapping projections in a certain direction can be used as the above-mentioned one side and the other opposite side.

[0076] For example, when one side of the substrate 5 is a horizontal side, the side below the horizontal side along the thickness direction is a convex or concave spherical side, or a concave-convex step side, or an irregular curved side, which can all be used as the other opposite side of one side of the substrate 5, and the first molded part 31 and one side of the substrate 5 form an angle of 0° to 180°, which refers to the angle between the first molded part 31 and the corresponding point tangent of the side of the substrate 5, and the second molded part 32 and the other opposite side of the substrate 5 form an angle of 0° to 180°, which refers to the angle between the second molded part 32 and the corresponding point tangent of the opposite side of the substrate 5. Therefore, the angle relationship between the first molded part 31 and the second molded part 32 will not be restricted, and the first molded part 31 and the second molded part 32 can actually form an angle of 0° to 360°.

[0077] For example, combined with Figure 1 To further explain in detail, at this time, the molding component 3 is specifically configured as a first molding part 31 and a second molding part 32 of a split structure, and the first molding part 31 and the second molding part 32 are arranged corresponding to each other, so that when the first stamping die 1 and / or the second stamping die 2 are pressurized, the first molding part 31 can stamp out the first protruding structure 511 toward the substrate 5, and the first molding part 31 can form an angle of 0° to 180° with one side of the substrate 5, that is, the first protruding structure 511 stamped out by the first molding part 31 can form an angle of 0° to 180° with the corresponding side of the substrate 5, and the first molding part 31 can be arranged at a vertical relationship of 90° to one side of the substrate 5, but is not limited to, so that the first protruding structure 511 molded in this way can be used as a sleeve or a positioning pin for the substrate 5 to be installed and connected, and a higher and more effective connection length can be achieved.

[0078] Similarly, the second molded part 32 is arranged to form an angle of 0° to 180° with the other opposite side of the substrate 5, that is, the second protruding structure 512 stamped out from the second molded part 32 can form an angle of 0° to 180° with the other opposite side of the substrate 5. The second molded part 32 can be arranged to be at a vertical relationship of 90° with the other opposite side of the substrate 5, but is not limited to it. The second protruding structure 512 formed in this way can protrude vertically from the substrate 5 at the maximum height, so that the second protruding structure 512 and the extrusion cracks can be efficiently removed from the substrate 5 together with the subsequent turning, grinding and other processes.

[0079] It is understandable that the present application does not specifically limit the implementation method of the molding assembly 3, that is, those skilled in the art can adjust its type according to actual conditions, including but not limited to the above-mentioned integrated U-shaped clamp-mounted molding assembly 3. The above situation is only an exemplary description of how the target part in the present application can be implemented, but is not limited to the situation described in the above embodiment.

[0080] In one embodiment, the second molded part 32 includes a recessed portion opened in the second stamping die 2; when the molding assembly 3 is stamping the target portion 51, the recessed portion is used to allow the second portion of the medium in the target portion 51 to flow and fill, so as to bulge to form a second bulge structure 512.

[0081] For example, combined with Figure 1To further explain in detail, the second molding part 32 is set as a recessed part opened in the second stamping die 2. The shape of the recessed part can be set to a recessed hemispherical shape, a recessed conical shape, a recessed pyramid shape, etc. Of course, the recessed part can also be set in a dedicated spare part, and the spare part can be set flush in the second stamping die 2. In this way, when the molding component 3 performs stamping on the target part 51 in the substrate 5, the recessed part can correspond to the second part of the medium in the target part 51 flowing toward it and filling the recessed part, forming a second protruding structure 512 protruding from the substrate 5.

[0082] Moreover, the size of the above-mentioned recessed portion can be set to a fixed size or an adjustable size. When the above-mentioned recessed portion is set to an adjustable size, a detachable module can be correspondingly arranged at the position where the recessed portion is opened in the second punching die 2, and each module respectively opens a recessed portion of a different size. The method of replacing different modules is improved to realize the function of adjusting the size of the recessed portion.

[0083] The second molded part 32 is configured as a recessed portion opened in the second stamping die 2 , which has the beneficial effects of being simple in structure and enabling the second protruding structure 512 to be filled and molded without the need for additional components.

[0084] It is understandable that the present application does not specifically limit the implementation method of the second molded part 32, that is, those skilled in the art can adjust its type according to actual conditions. The above situation is only an illustrative explanation of the ways in which the target part in the present application can be implemented, but is not limited to the situations described in the above embodiments.

[0085] In one embodiment, the second molding part 32 includes a target part arranged in the second stamping die 2; when the molding component 3 is pressing the target part 51, the target part corresponds to the adsorbed target part 51 and can drive the second part of the medium in the target part 51 to protrude away from the substrate 5 to form a second protruding structure 512.

[0086] For example, combined with Figure 3To further explain in detail, at this time, the second molding part 32 is set as a target part installed in the second stamping die 2. The target part can be but not limited to being set as a movable adsorption part. The adsorption part can be but not limited to adsorbing the target part corresponding to the target part 51 in the substrate 5 by vacuuming or physical bonding, or the adsorption part additionally adsorbs and fixes the target part 51 in the substrate 5 through a suction head. Of course, the above-mentioned "adsorption" includes but is not limited to all physical or chemical methods to fix the target part to the target part 51 in the substrate 5. In this way, when the molding component 3 performs stamping on the target part 51 in the substrate 5, the target part can drive the second part of the medium in the target part 51 to move away from the substrate 5. The actual method of the target part driving the second part of the medium in the target part 51 to move away from the substrate 5 includes but is not limited to external force pulling, vacuum suction, etc., as long as the second part of the medium in the target part 51 can actively move away from the substrate 5 relative to the initial position, and adsorb and pull the second part of the medium away from the substrate 5 to form a second protrusion structure 512.

[0087] Moreover, the target part may be moved in a manner other than limited to being driven back and forth by a cylinder, and after the second protruding structure 512 is formed, since the target part and the second protruding structure 512 are still adsorbed and bonded, the target part and the substrate 5 may be taken out together, and the two may be separated separately later.

[0088] The second molded part 32 is set as a target part installed in the second stamping die 2, and the second protruding structure 512 can be more efficiently protruded through the suction and pulling action of the target part.

[0089] It can be understood that the present application does not specifically limit the implementation method of the target part, that is, technical personnel in this field can adjust its type according to actual conditions. The above situation is only an illustrative explanation of the ways in which the target part in this application can be implemented, but is not limited to the situations described in the above embodiments.

[0090] In one embodiment, the first molded part 31 may include a punch head 311 and a punch core 312 inserted into the punch head 311; wherein the punch head 311 and the punch core 312 can be assembled to form die gaps 313 of different volumes; the first punch die 1 and the second punch die 2 can at least punch the substrate 5 through two die gaps 313 of different sizes.

[0091] For example, combined with Figure 1 and Figure 2To further explain in detail, at this time, the first molded part 31 is provided with a punch head 311 and a punch core 312 inserted in the punch head 311, and the punch head 311 and the punch core 312 are equipped with a die gap 313 for forming the first protruding structure 511, and the volume of the die gap 313 can be adjusted accordingly. The adjustment method can be but is not limited to increasing the inner diameter of the punch head 311 and keeping the size of the punch core 312 unchanged, keeping the inner diameter of the punch head 311 and reducing the diameter of the punch core 312, increasing the inner diameter of the punch head 311 and reducing the diameter of the punch core 312, etc., so that the first stamping die 1 and the second stamping die When the substrate 5 is specifically stamped, the first protruding structure 511 at the first height can be initially stamped through the die gap 313 with a smaller volume, and the first protruding structure 511 at the second height can be stamped again through the die gap 313 with a smaller volume. Through two or more step-by-step stampings, the first protruding structure 511 that meets the expected height requirement can be formed. This not only ensures the stability and reliability of the shape structure of the first protruding structure 511, but also facilitates the demolding of the stamping core 312, thereby avoiding the problem of excessive resistance during demolding of the stamping core 312 causing damage to itself or damage to the first protruding structure 511.

[0092] It is understandable that the present application does not specifically limit the implementation method of the first molded part 31, that is, those skilled in the art can adjust its type according to actual conditions. The above situation is only an illustrative explanation of the ways in which the target part in the present application can be implemented, but is not limited to the situations described in the above embodiments.

[0093] In one embodiment, the first molding part 31 may include a plurality of replaceable punch heads 311; the plurality of punch heads 311 may be arranged in the first molding part 31 individually or in plurality at the same time, and when replacing the punch heads 311, one or more of them may be replaced, thereby changing the size of the punch heads 311 actually used in the first molding part 31 in a replaceable manner, and each punch head 311 may have a first punch face 311a, and a second punch face 311b concavely arranged in the first punch face 311a; a face difference H is formed between the first punch face 311a and the second punch face 311b; wherein the face differences H of the plurality of punch heads 311 are different.

[0094] It should be understood that the above-mentioned face difference H not only represents the difference between the first punch face 311a and the second punch face 311b in the vertical direction. When the first punch face 311a and the second punch face 311b are arranged along other directions, the face difference H is essentially the face distance between the first punch face 311a and the second punch face 311b.

[0095] For example, combined with Figure 1 and Figure 2To further explain in detail, the multiple replaceable punch heads 311 all have a first punch face 311a and a second punch face 311b concavely arranged in the first punch face 311a, and different height face differences H are formed between the first punch face 311a and the second punch face 311b. When the multiple punch heads 311 are respectively replaced and assembled with the punch core 312, the different face differences H in the multiple punch heads 311 can form die gaps 313 of different heights and volumes, thereby realizing the function of forming a first protruding structure 511 with gradually increasing height during multiple stampings.

[0096] It can be understood that the present application does not specifically limit the implementation method of the punch head 311, that is, those skilled in the art can adjust its type according to actual conditions. The above situation is only an illustrative explanation of the ways in which the target part in the present application can be implemented, but is not limited to the situations described in the above embodiments.

[0097] In one embodiment, the first forming part 31 also includes a plurality of punching cores 312 that are replaceably arranged in the punch head 311; the core rod portion of the punching core 312 is correspondingly inserted into the second punch face 311b, and the insertion method of the core rod portion of the punching core 312 and the second punch face 311b can be but is not limited to a fixed insertion setting, an adjustable insertion setting, a clamping or screwing insertion setting, etc., and one end of the core rod portion of the punching core 312 is flush with the first punch face 311a, or exceeds the first punch face 311a; wherein, the core rod portions of the plurality of punching cores 312 have different diameters.

[0098] For example, combined with Figure 1 and Figure 2 To further explain in detail, multiple stamping cores 312 are replaceably arranged in the stamping head 311, and the diameters of the core rods in the multiple stamping cores 312 are different. In this way, when the multiple stamping cores 312 are replaceably assembled with the stamping head 311, the different diameters of the core rods in the stamping cores 312 can form die gaps 313 of different volumes with the stamping head 311.

[0099] In addition, the core rods of the plurality of punch cores 312 may extend beyond the first punch face 311a to different heights, so that when the punch cores 312 of different lengths punch the substrate 5 , different punching depths may be generated, and more material may protrude to form a higher first protruding structure 511 .

[0100] It can be understood that the present application does not specifically limit the implementation method of the stamping core 312, that is, technical personnel in this field can adjust its type according to actual conditions. The above situation is only an illustrative explanation of the ways in which the target part in the present application can be implemented, but is not limited to the situations described in the above embodiments.

[0101] In one embodiment, the stamping assembly further includes a heating device 4 ; the heating device 4 is disposed on the first stamping die 1 and / or the second stamping die 2 , and is used to heat and soften the target portion 51 in the substrate 5 .

[0102] For example, combined with Figure 1 and Figure 2 To further explain in detail, the heating device 4 can be but is not limited to being configured as an electric heating coil, and in this case the heating device 4 is arranged in the second stamping die 2, so that when the electric heating coil is energized, the target portion 51 in the substrate 5 placed above the second stamping die 2 can be locally heated, thereby weakening the structural strength of the target portion 51 in the substrate 5, facilitating the improvement of the material fluidity of the first part medium and the second part medium of the target portion 51 during subsequent stamping, so that they can be more smoothly pressurized to form the first protruding structure 511 and the second protruding structure 512, respectively.

[0103] Of course, the above-mentioned heating device 4 can also be provided with other heating forms, such as but not limited to a heating spray gun, which is directly used to perform flame spray heating on the target portion 51 in the substrate 5 .

[0104] It can be understood that the present application does not specifically limit the implementation method of the heating device 4, that is, those skilled in the art can adjust its type according to actual conditions. The above situation is only an illustrative explanation of the ways in which the target part in the present application can be implemented, but is not limited to the situations described in the above embodiments.

[0105] In addition, the present disclosure also provides a stamping method, which includes:

[0106] Step S2: Punching the target portion 51 in the substrate 5, so that the first part of the medium in the target portion 51 moves in the first direction a to form a first protruding structure 511, and the second part of the medium in the target portion 51 moves in the second direction b to form a second protruding structure 512 corresponding to the position of the first protruding structure 511;

[0107] Wherein, the first direction a is different from the second direction b;

[0108] The first protruding structure 511 and the second protruding structure 512 are formed by synchronous deformation of the target portion 51 under pressure.

[0109] The above-mentioned “the target portion 51 is compressed and deformed synchronously” includes but is not limited to the substrate 5 being subjected to a single physical stamping action by a stamping device, so that the target portion 51 is correspondingly compressed and simultaneously deformed to form a first protruding structure 511 and a second protruding structure 512; or the substrate 5 is subjected to physical stamping and chemical reaction actions jointly applied by a stamping device and / or other equipment, so that the target portion 51 is correspondingly compressed and / or chemically reacted, and simultaneously deformed to form a first protruding structure 511 and a second protruding structure 512.

[0110] For example, combined with Figure 5 To further explain in detail, the stamping method provided in the embodiment of the present disclosure can be applied to the stamping assembly provided in the above-mentioned embodiment of the present disclosure, and the stamping method can be but is not limited to being used in the processing process of stamping out protruding parts such as sleeves and positioning pins from aluminum shell materials.

[0111] At this time, the first part of the medium in the target part 51 of the substrate 5 moves in the first direction a to form a first protruding structure 511, which can be used as a protruding component such as a sleeve and a positioning pin, and the second part of the medium in the target part 51 of the substrate 5 moves in the second direction b to form a second protruding structure 512, which can be used as the opposite of the first protruding structure 511. The second protruding structure 512 can be used to "raise the protrusion" corresponding to the crack formed on the back side of the thin-shell aluminum target part 51, and because the extrusion crack is quite protruding from the surface of one side of the substrate 5, the second protruding structure 512 and the extrusion crack can be removed from the substrate 5 together later, thereby achieving the beneficial effect of stamping one side of the thin-shell substrate 5 into a protruding structure, and at the same time, there is no extrusion crack on the side facing away from the protruding structure.

[0112] In one possible implementation manner, the stamping method provided in the embodiment of the present disclosure further includes:

[0113] Step S3: remove the portion of the second protruding structure 512 protruding from the substrate 5 , so that the remaining second protruding structure 512 is flush with the surface of the substrate 5 .

[0114] In the above-mentioned process, the portion of the second protruding structure 512 protruding from the substrate 5 is removed. The removed portion of the second protruding structure 512 may be determined relative to the original surface shape of the substrate 5. For example, but not limited to, if the original surface shape of the substrate 5 is a plane, then the portion of the second protruding structure 512 removed is the portion protruding from the plane; if the original surface shape of the substrate 5 is an arc surface, then the portion of the second protruding structure 512 removed is the portion protruding from the arc surface, and the remaining second protruding structure 512 after removal is flush with the surface of the substrate 5. Similarly, it means that it can maintain a corresponding and adaptable flushness with the original surface shape of the substrate 5.

[0115] For example, combined with Figure 5 To further explain in detail, the S3 step can be but is not limited to using turning, grinding, planing, laser cutting and other processes to remove the portion of the second protruding structure 512 protruding from the substrate 5, so that the cracks "attached" to the protruding surface of the second protruding structure 512 are also removed, leaving only the remaining second protruding structure 512 to form a flat and smooth surface that is flush with the surface of the substrate 5.

[0116] In one possible implementation, in the stamping method provided in the embodiment of the present disclosure, the first protruding structure 511 protrudes away from one side of the substrate 5, and the angle between the first direction a and one side of the substrate 5 is in the range of 0° to 180°;

[0117] The second protruding structure 512 protrudes away from the other opposite side of the substrate 5 , and the included angle between the second direction b and the other opposite side of the substrate 5 ranges from 0° to 180°.

[0118] The first protruding structure 511 can be, but is not limited to, configured to protrude outward at a 90° angle perpendicular to one side of the substrate 5, so that when the first protruding structure 511 is used as a connecting component such as a sleeve or a positioning pin, it can have a higher and longer effective connection length; the second protruding structure 512 can be, but is not limited to, configured to protrude in the opposite direction at a 90° angle perpendicular to the other opposite side of the substrate 5, so that it is convenient to remove the second protruding structure 512 from the surface of one side of the substrate 5 later.

[0119] Of course, the first protrusion structure 511 and the second protrusion structure 512 can also be set to protrude outward at other angles relative to the substrate 5, for example, 30°, 45°, 60°, 120°, 135°, etc., and can be flexibly set according to actual working conditions. No further explanation is given here.

[0120] In one embodiment, in the stamping method provided in the embodiment of the present disclosure, step S2—the second portion of the medium in the target portion 51 forms the second protruding structure 512, which may specifically include:

[0121] S2a—Punch the target portion 51 so that the second portion of the medium in the target portion 51 is formed into a second protruding structure 512 of a first size; punch the second protruding structure 512 of the first size so that the second protruding structure 512 changes to a second size; wherein the second size is less than or equal to the first size.

[0122] For example, combined with Figure 6 To further explain in detail, the second portion of the medium in the target portion 51 is initially formed into a second protruding structure 512 of a first size, and then the second protruding structure 512 of the first size is punched to make the second protruding structure 512 smaller or unchanged in size. By punching the second protruding structure 512, part or a small amount of material of the second protruding structure 512 can flow back toward the substrate 5, further supplementing the material required when the height of the first protruding structure 511 is increased.

[0123] Stamping the second protruding structure 512 of the first size can not only make the first protruding structure 511 in the substrate 5 produce a higher protruding height under the action of the reflow material, but also make the second protruding structure 512 more compact, ensure that the protruding part in the second protruding structure 512 is removed, and form a flat and smooth cross-section on the surface of the substrate 5.

[0124] In one embodiment, in the stamping method provided in the embodiment of the present disclosure, step S2—the first portion of the medium in the target portion 51 forms the first protruding structure 511, which may specifically include:

[0125] S2b—Perform a first stamping on the target portion 51 to form a first protruding structure 511 of a first height, and stamp out an inner concave hole of a first caliber in the first protruding structure 511; perform a second stamping on the target portion 51 to change the height of the first protruding structure 511 to a second height, and change the caliber of the stamped inner concave hole to a second caliber; wherein the second height is greater than the first height, and the second caliber is smaller than the first caliber.

[0126] The first protruding structure 511 of the first height is subjected to a second stamping to form a first protruding structure 511 of a second height. The medium in the first protruding structure 511 may be, but is not limited to, flowed and lifted due to the stamping to form the second height. The medium in the first protruding structure 511 of the second height may be wholly or partially composed of the medium in the first protruding structure 511 of the first height. When the medium is wholly composed of the medium in the first protruding structure 511 of the first height, the height may be increased by, but is not limited to, reducing the outer diameter of the first protruding structure 511 by stamping.

[0127] For example, taking the first protruding structure 511 with a total height of 3.8 mm formed by stamping a 2 mm thick thin sheet aluminum material as an example, the target portion 51 can be firstly subjected to a first stamping to form a first protruding structure 511 with a height of 1.4 mm, and the thickness of the thin sheet aluminum material is 3.4 mm in total, and the first diameter of the inner concave hole formed by stamping in the first protruding structure 511 can be specifically 2 mm; and then the target portion 51 is subjected to a second stamping to form a first protruding structure 511 with a height of 2.2 mm. , plus the thickness of the thin plate aluminum material, the total is 4.2mm, and the first diameter of the inner concave hole stamped in the first protruding structure 511 can be specifically 1.5mm; and the side of the thin plate aluminum material and the end face of the first protruding structure 511 can also be further subjected to CNC processing steps, and the stamping surface of the thin plate aluminum material can be CNC-polished and fine-finished by 0.3mm, and the protruding end face of the first protruding structure 511 can be polished and fine-finished by 0.1mm, so that the final finished product height of the boss sleeve containing the thickness of the thin plate aluminum material can be 3.8mm.

[0128] The above-mentioned step S2b realizes the gradual increase of the height of the first protruding structure 511 formed by stamping in the thin plate aluminum material through two stampings of different degrees, thereby avoiding material breakage during the stamping process of the thin plate aluminum material, and also avoiding the ejector pin from being broken due to excessive force during the stamping and demolding process. In addition, through the CNC processing steps, the structural quality of the first protruding structure 511 finally formed is fully ensured, and the beneficial effect of stamping a higher-sized first protruding structure 511 out of the thin plate aluminum material can be effectively achieved.

[0129] Of course, the above step S2b may also be performed by stamping more times with different degrees to gradually increase the height of the first protruding structure 511 step by step.

[0130] In one embodiment, in the stamping method provided in the embodiment of the present disclosure, step S2—the first portion of the medium in the target portion 51 forms the first protruding structure 511, which may specifically include:

[0131] S2c—A first recessed portion of a first depth is punched out around the first protruding structure 511 at a first height; a second recessed portion of a second depth is punched out around the first protruding structure 511 at a second height; wherein the second depth is greater than the first depth.

[0132] For example, taking the example of a first protruding structure 511 with a total height of 3.8 mm formed by stamping a 2 mm thick thin plate aluminum material, when the target portion 51 is subjected to the first stamping to form the first protruding structure 511 with a height of 1.4 mm, a first recessed portion with a first depth of 0.4 mm is stamped out around the first protruding structure 511, and when the target portion 51 is subjected to the second stamping to form the first protruding structure 511 with a height of 2.2 mm, a first recessed portion with a second depth of 0.8 mm is further stamped out around the first protruding structure 511. Although the height of the first protruding structure 511 protruding from the thin plate aluminum material is still 2.2 mm, due to the depth of the first recessed portion, the relative height between the first protruding structure 511 and the thin plate aluminum material is 3 mm.

[0133] In the above-mentioned step S2c, by punching out a first recessed portion corresponding to the periphery of the first protruding structure 511, the relative height between the first protruding structure 511 and the thin aluminum plate can be increased, so that the first protruding structure 511 can form a higher effective docking height, which can improve the stability during subsequent docking installation.

[0134] In one possible implementation manner, the stamping method provided in the embodiment of the present disclosure further includes the following steps before step S2:

[0135] Step S1: heating and softening the target portion 51 in the substrate 5.

[0136] For example, the structural hardness of the punching point can be weakened by local electric heating of the electric heating coil, but is not limited to this.

[0137] The local electric heating of the coil can specifically be carried out by high-frequency heating, with the high-frequency band selected between 30Khz and 80Khz. In this way, the local heating of the stamping point can be basically heated to 300°C within four seconds. Of course, the setting temperature of the heating device can be higher than 300°C, for example, 360°C, which can compensate for the temperature loss of media such as air and molds, so that the actual heating temperature of the stamping point is between 280°C and 300°C.

[0138] The local electric heating method of the coil has the beneficial effects of energy saving and high efficiency, and can quickly heat up the local area of ​​the stamping point and quickly weaken the hardness of the structure.

[0139] In one possible implementation manner, the stamping method provided in the embodiment of the present disclosure further includes, after step S3:

[0140] Step S4: Grind and flatten the stamping surface of the substrate 5 and the raised surface of the first raised portion, and add a thread structure to the inner circumference of the first raised portion.

[0141] For example, the stamping surface in the substrate 5 and the raised surface in the first raised portion can be CNC-milled and eliminated by, but not limited to, a CNC lathe. This can improve the flatness of the stamping surface of the substrate 5 and the raised surface of the first raised portion in the plate, and fully ensure the structural flatness and aesthetics of the final finished product. In addition, a threaded structure is added to the inner circumferential surface of the inner concave hole in the first raised portion, so that the finished product can be installed and fixed by screwing.

[0142] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of the present disclosure, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0143] The above is only a specific embodiment of the present disclosure, but the protection scope of the present disclosure is not limited thereto. Any person skilled in the art who is familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present disclosure, which should be included in the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure should be based on the protection scope of the claims.

Claims

1. A stamping assembly, comprising a first stamping die, a second stamping die and a forming assembly; The first stamping die and the second stamping die are arranged corresponding to each other to form a stamping die space; The molding assembly is located in the die space; in, The molding assembly is used to mold the target portion in the substrate, and can make the first part of the medium in the target portion flow along the first direction to form a first convex structure, and the second part of the medium in the target portion flow along the second direction to form a second convex structure corresponding to the position of the first convex structure; The first direction is different from the second direction.

2. The stamping assembly according to claim 1, wherein the forming assembly comprises: A first forming part is arranged on a side of the first stamping die facing the die space; A second forming member is disposed on a side of the second stamping die facing the die space; Wherein, the first molding piece is used to mold the first protruding structure, and the first molding piece can form an angle of 0° to 180° with one side of the substrate; The second molding piece is used to mold the second protruding structure, and the second molding piece can form an angle of 0° to 180° with the other opposite side of the substrate.

3. The stamping assembly according to claim 2, wherein the second molded part comprises a recessed portion formed in the second stamping die; When the molding assembly is pressing the target portion, the recessed portion is used for a second portion of the medium in the target portion to flow and fill, so as to bulge to form the second bulge structure.

4. The stamping assembly according to claim 2, wherein the second molded part comprises a target part disposed in the second stamping die; When the molding assembly is pressing the target part, the target part correspondingly adsorbs the target part and can drive the second part of the medium in the target part to bulge away from the substrate to form a second bulge structure.

5. The stamping assembly according to claim 2, wherein the first forming member comprises a stamping head and a stamping core inserted into the stamping head; in, The punch head and the punch core can be assembled to form die gaps of different volumes; The first stamping die and the second stamping die can at least stamp the substrate through two stamping die gaps of different sizes.

6. The stamping assembly according to claim 5, wherein the first forming member comprises a plurality of the stamping heads that can be replaced; Each of the punch heads has a first punch face and a second punch face recessed in the first punch face; A face difference H is formed between the first punch face and the second punch face; in, The surface differences H of the plurality of punching heads are different.

7. The stamping assembly according to claim 6, wherein the first forming member further comprises a plurality of the stamping cores replaceably disposed in the stamping head; The core rod portion of the punch core is correspondingly inserted into the second punch surface, and one end is flush with the first punch surface or exceeds the first punch surface; in, The core rods of the plurality of punching cores have different diameters.

8. The stamping assembly according to any one of claims 1 to 7, further comprising a heating device; The heating device is disposed on the first stamping die and / or the second stamping die, and is used to heat and soften a target portion in the substrate.

9. A stamping method comprising: Punching the target portion in the substrate so that a first portion of the medium in the target portion moves in a first direction to form a first convex structure, and a second portion of the medium in the target portion moves in a second direction to form a second convex structure corresponding to the position of the first convex structure; wherein the first direction is different from the second direction; The first protruding structure and the second protruding structure are formed by synchronous deformation of the target portion under pressure.

10. The stamping method according to claim 9, further comprising: The portion of the second protruding structure protruding from the substrate is removed, so that the remaining second protruding structure is flush with the surface of the substrate.

11. The punching method according to claim 9, wherein the second portion of the medium in the target portion forms the second protruding structure, comprising: Punching the target portion so that a second portion of the medium in the target portion is formed into a second protruding structure of a first size; Punching the second protruding structure of the first size to change the second protruding structure to a second size; The second size is smaller than or equal to the first size.

12. The punching method according to claim 9, wherein the first portion of the medium in the target portion forms the first protruding structure, comprising: Performing a first punching operation on the target portion to form the first protruding structure with a first height, and punching an inner concave hole with a first caliber in the first protruding structure; Performing a second punching on the target portion, so that the height of the first protruding structure becomes a second height, and the diameter of the punched inner concave hole becomes a second diameter; Among them, the second height is greater than the first height, and the second caliber is smaller than the first caliber.

13. The punching method according to claim 12, wherein the first portion of the medium in the target portion forms the first protruding structure, further comprising: Punching a first recessed portion of a first depth at a periphery of the first protruding structure of a first height; Punching a second recessed portion of a second depth at the periphery of the first protruding structure at a second height; The second depth is greater than the first depth.

Images