Combined type valve cover die forging die capable of achieving rapid die stripping

Abstract

The utility model discloses a combined type valve cover die forging die capable of achieving rapid die stripping, which comprises an assembling upper die and an assembling lower die, an upper die valve cover cavity is preset in the middle position in the assembling upper die, and a lower die valve cover cavity is preset in the middle position in the assembling lower die. A lower die valve cover cavity is formed in the upper end of the upper die body, a lower die insert cavity is formed in the lower end of the interior of the lower die valve cover cavity in advance, an assembling insert is arranged in the lower die insert cavity in advance, first-stage punches are arranged on one sides of the exteriors of the upper assembling die body and the lower assembling die body in advance, and second-stage punches are arranged on the other sides of the exteriors of the upper assembling die body and the lower assembling die body in advance. According to the utility model, the internal cavity structure is optimized and improved, the original integrated cavity is optimized and improved into an assembly type structure capable of being combined, butted and connected in a fastening manner, and the embedded module capable of being connected and fastened in a threaded manner is adopted, so that the maintenance cost of the mold in the later stage is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of plastic forming molds for valve covers, in particular to a combined valve cover die forging mold with rapid mold ejection. Background Art

[0002] The die forging mold is an important forming tool indispensable in the manufacturing process of valve covers.

[0003] However, at present when multi-directional hydraulic die forging equipment is widely popular, the service life of the mold has always been a headache for each enterprise. Although the products of multi-directional forging have high precision, less machining allowance, fast production efficiency, and excellent mechanical properties of materials, when forging enterprises use an integrated mold in the production process, the cavity collapses and fails due to too long heating time and too slow cooling, and even breaks, causing great economic losses to the enterprise.

[0004] Based on this, the utility model proposes a combined valve cover die forging mold with rapid mold ejection to solve the above problems. Summary of the Utility Model

[0005] The purpose of this part is to outline some aspects of the embodiments of the utility model and briefly introduce some preferred embodiments. Simplifications or omissions may be made in this part, as well as in the abstract and the title of the utility model, to avoid obscuring the purpose of this part, the abstract, and the title, and such simplifications or omissions shall not be used to limit the scope of the utility model.

[0006] In view of the above and / or existing problems in the design of valve cover plastic forming molds, the present utility model is proposed.

[0007] Therefore, one of the purposes of the present utility model is to provide a combined valve cover die forging mold with rapid mold ejection, which optimizes and improves the internal cavity structure, optimizes the original integral cavity into an assembled structure capable of combined docking and fastening connection, and adopts an inlaid module that can be threadedly connected and fastened, reducing the later maintenance cost of the mold.

[0008] In order to achieve the above-mentioned effect, the utility model provides the following technical solutions: a combined valve cover forging die for rapid demolding, comprising an assembly upper die and an assembly lower die, an upper die valve cover cavity is preset in the middle position inside the assembly upper die, a lower die valve cover cavity is preset in the middle position inside the assembly lower die, a lower die insert cavity is preset at the lower end position inside the lower die valve cover cavity, an assembly insert is preset inside the lower die insert cavity, upper die assembly reserved grooves are symmetrically opened at the middle position of the lower ends on both sides of the assembly upper die, lower die assembly reserved grooves are symmetrically opened at the middle position of the upper ends on both sides of the assembly lower die, a primary punch is preset at one side position outside the assembly upper die and the assembly lower die, and a secondary punch is preset at the other side position outside the assembly upper die and the assembly lower die.

[0009] As a preferred solution of the combined valve cover forging die with rapid demolding of the utility model, a sealing groove is provided at the middle position of the inner and outer sides of the bottom of the upper assembly die, and a sealing convex block is symmetrically provided at the middle position of the inner and outer sides of the upper end of the lower assembly die, and the fixed installation position of the sealing convex block at the upper end of the lower assembly die corresponds to the opening position of the sealing groove at the bottom of the upper assembly die, and the external specifications of the sealing convex block and the internal specifications of the sealing groove are adapted to each other;

[0010] Through the alignment and insertion structure between the sealing groove and the sealing protrusion, the mold sealing between the assembly upper die and the assembly lower die can be effectively improved, and the use effect of the multi-directional die forging after the overall mold is closed can be greatly improved.

[0011] As a preferred solution of the combined valve cover forging die with rapid demolding of the utility model, the external specifications of the assembly insert and the internal specifications of the cavity groove of the lower die insert correspond to each other, the upper end positions of the inner and outer sides of the assembly upper die are symmetrically provided with upper die pressing plate grooves, and the lower end positions of the inner and outer sides of the assembly lower die are symmetrically provided with lower die pressing plate grooves;

[0012] By respectively opening the upper mold pressure plate groove and the lower mold pressure plate groove, the mold can use the external pressure plate to fix the assembly upper mold and the assembly lower mold respectively, which effectively enhances the overall use effect and greatly facilitates the overall normal use work, which is conducive to improving the overall work smoothness.

[0013] As a preferred solution of the combined valve cover forging die for rapid demolding of the utility model, wherein: the upper die assembly reserved groove and the lower die assembly reserved groove are both semicircular groove structures with the same radius, and the inner diameters of the upper die assembly reserved groove and the lower die assembly reserved groove correspond to and match the outer diameters of the primary punch and the secondary punch, and the lower die valve cover cavity and the middle position of the upper end of the assembly insert are both provided with semicircular grooves;

[0014] Due to the structural characteristics and setting positions of the upper die assembly reserved groove and the lower die assembly reserved groove, when the first punch and the second punch perform die closing between the assembled upper die and the assembled lower die, a docking effect can be achieved more smoothly and stably, so as to ensure that the die can more efficiently achieve the alignment forging operation of the valve cover.

[0015] As a preferred solution of the combined valve cover forging die with quick die ejection of the present utility model, wherein: at the middle position of the bottom of the assembled lower die, thimble holes are symmetrically opened horizontally, and at the middle position of the bottom of the assembled lower die, associated threaded holes are symmetrically opened longitudinally. An associated fastening bolt is movably installed outside the associated threaded hole, and a demoulding thimble is movably installed outside the thimble hole. The external thread specification of the associated fastening bolt corresponds and matches with the internal thread specification of the associated threaded hole, and the external specification of the demoulding thimble is adapted to the internal specification of the thimble hole;

[0016] By using the associated fastening bolt to perform stable alignment assembly threaded connection of the assembled insert in the cavity of the lower die insert, the assembly effect and assembly tightness of the assembled insert in the cavity of the lower die insert are effectively guaranteed.

[0017] As a preferred solution of the combined valve cover forging die with quick die ejection of the present utility model, wherein: the associated threaded hole penetrates through the bottom of the assembled lower die and is interconnected with the inside of the cavity of the lower die insert, and the thimble hole penetrates through the assembled lower die and is interconnected with the inside of the cavity of the lower die valve cover. At the two side positions of the bottom of the assembled insert, fastening threaded holes are symmetrically opened. The opening position of the fastening threaded hole at the bottom of the assembled insert corresponds and coincides with the opening position of the associated threaded hole at the bottom of the assembled lower die. The internal specification of the fastening threaded hole is adapted to the external thread specification of the associated fastening bolt;

[0018] Due to the alignment and connection structure between the thimble hole and the cavity of the lower die valve cover, the demoulding thimble can more conveniently achieve the quick demoulding operation of the die through the thimble hole.

[0019] Advantages of the utility model: By optimizing and improving the internal cavity structure, the original integral cavity is optimized and improved into an assembled structure that can be combined, docked, and firmly connected. An inlaid module that can be threadedly connected and fastened is adopted. With the support of its own structure and material characteristics, the heat resistance of the inlaid block is enhanced, and the later maintenance cost of the mold is reduced. When the inlaid block is worn too much, only the module needs to be replaced, which is convenient and fast, saving the mold repair time and maintenance cost. At the same time, it can achieve the use effects of high product precision, less machining allowance, fast production efficiency, and excellent mechanical properties of the material, solve the problem of mold cracks, have less wear on the mold for long-term production forging, be conducive to greatly improving the overall daily output, and the inlaid block is small in volume, convenient for alignment, assembly, disassembly, and replacement operations, and is fixed only with two bolts. The inlaid block structure reduces the overall mold repair cost, has the condition of multiple spare parts, thus effectively saving the mold repair time, and correspondingly improving the overall comprehensive use performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings. Among them:

[0021] Figure 1 is a schematic structural diagram of the split state of the present utility model;

[0022] Figure 2 is a schematic structural diagram of the overall structure of the present utility model;

[0023] Figure 3 is a schematic structural diagram of the assembly state of the assembled inlaid block and the lower die inlaid block cavity of the present utility model;

[0024] Figure 4 is a schematic structural diagram of the thimble hole and the thimble hole opened at the bottom of the assembled lower die of the present utility model;

[0025] Figure 5 is a schematic structural diagram of the fastening threaded hole opened at the bottom of the assembled inlaid block of the present utility model;

[0026] Figure 6 is a schematic internal structure diagram of the split state of the present utility model.

[0027] Reference numerals in the figure: 1, upper die assembly; 2, lower die assembly; 3, insert block assembly; 4, lower die valve cover cavity; 5, lower die insert block cavity; 6, upper die pressing plate groove; 7, upper die assembly reserved groove; 8, lower die pressing plate groove; 9, lower die assembly reserved groove; 10, primary punch; 11, secondary punch; 12, associated threaded hole; 13, ejector pin hole; 14, associated fastening bolt; 15, demoulding ejector pin; 16, fastening threaded hole; 17, upper die valve cover cavity; 18, sealing groove; 19, sealing convex block. Detailed implementation mode

[0028] In order to make the above objects, features and advantages of the present invention more obvious and understandable, the following detailed description of the specific implementation mode of the present invention will be made in conjunction with the accompanying drawings of the specification.

[0029] In the following description, many specific details are set forth in order to fully understand the present invention. However, the present invention can also be implemented in other ways different from those described herein. Those skilled in the art can make similar generalizations without departing from the connotation of the present invention. Therefore, the present invention is not limited by the specific implementation modes disclosed below.

[0030] Secondly, the present invention will be described in detail with reference to the schematic diagrams. When detailing the implementation mode of the present invention, for the convenience of description, the cross-sectional views showing the device structure will be enlarged locally in a non-general proportion, and the schematic diagrams are only examples and should not limit the scope of protection of the present invention herein. In addition, in actual production, three-dimensional spatial dimensions including length, width and depth should be included.

[0031] Please refer to Figures 1-6, the present utility model provides a technical solution: a combined valve cover forging die with rapid mold release, including an assembled upper die 1, an assembled lower die 2, an assembled insert 3, a lower die valve cover cavity 4, a lower die insert cavity 5, an upper die pressing plate groove 6, an upper die assembly reserved groove 7, a lower die pressing plate groove 8, a lower die assembly reserved groove 9, a primary punch 10, a secondary punch 11, an associated threaded hole 12, a thimble hole 13, an associated fastening bolt 14, a demolding thimble 15, a fastening threaded hole 16, an upper die valve cover cavity 17, a sealing groove 18 and a sealing protrusion 19. An upper die valve cover cavity 17 is preset at the middle position inside the assembled upper die 1, a lower die valve cover cavity 4 is preset at the middle position inside the assembled lower die 2, a lower die insert cavity 5 is preset at the lower end position inside the lower die valve cover cavity 4, and an assembled insert 3 is preset inside the lower die insert cavity 5. Upper die assembly reserved grooves 7 are symmetrically opened at the middle positions of the lower ends on both sides of the assembled upper die 1, lower die assembly reserved grooves 9 are symmetrically opened at the middle positions of the upper ends on both sides of the assembled lower die 2, a primary punch 10 is preset at one side position outside the assembled upper die 1 and the assembled lower die 2, a secondary punch 11 is preset at the other side position outside the assembled upper die 1 and the assembled lower die 2, sealing grooves 18 are opened at the middle positions of the inner and outer sides of the bottom of the assembled upper die 1, sealing protrusions 19 are symmetrically opened at the middle positions of the inner and outer sides of the upper end of the assembled lower die 2, the fixed installation position of the sealing protrusion 19 at the upper end of the assembled lower die 2 corresponds and coincides with the opening position of the sealing groove 18 at the bottom of the assembled upper die 1, the external specification of the sealing protrusion 19 is adapted to the internal specification of the sealing groove 18, the external specification of the assembled insert 3 corresponds and matches the internal specification of the lower die insert cavity 5, upper die pressing plate grooves 6 are symmetrically opened at the upper end positions of the inner and outer sides of the assembled upper die 1, lower die pressing plate grooves 8 are symmetrically opened at the lower end positions of the inner and outer sides of the assembled lower die 2, both the upper die assembly reserved groove 7 and the lower die assembly reserved groove 9 are semi-circular groove structures with the same radius, and the inner diameter size of the upper die assembly reserved groove 7 and the lower die assembly reserved groove 9 corresponds and matches the outer diameter size of the primary punch 10 and the secondary punch 11. Semi-circular grooves are opened at the middle positions of the upper ends of the lower die valve cover cavity 4 and the assembled insert 3. Thimble holes 13 are symmetrically opened horizontally at the middle position of the bottom of the assembled lower die 2, associated threaded holes 12 are symmetrically opened longitudinally at the middle position of the bottom of the assembled lower die 2, an associated fastening bolt 14 is movably installed outside the associated threaded hole 12, a demolding thimble 15 is movably installed outside the thimble hole 13, and the external thread specification of the associated fastening bolt 14 corresponds and matches the internal thread specification of the associated threaded hole 12, the external specification of the demolding thimble 15 is adapted to the internal specification of the thimble hole 13. The associated threaded hole 12 penetrates through the bottom of the assembled lower die 2 and is interconnected with the inside of the lower die insert cavity 5, and the thimble hole 13 penetrates through the assembled lower die 2 and is interconnected with the inside of the lower die valve cover cavity 4. Fastening threaded holes 16 are symmetrically opened at both side positions of the bottom of the assembled insert 3.The opening position of the fastening threaded hole 16 at the bottom of the assembled insert 3 corresponds to and matches the opening position of the associated threaded hole 12 at the bottom of the assembled lower die 2, and the internal specification of the fastening threaded hole 16 is adapted to the external thread specification of the associated fastening bolt 14;

[0032] Through the butt-insertion structure between the sealing groove 18 and the sealing protrusion 19, the mold closing tightness between the assembled upper die 1 and the assembled lower die 2 can be effectively improved, greatly enhancing the multi-directional forging use effect after the overall mold closing. By respectively opening the upper die pressing plate groove 6 and the lower die pressing plate groove 8, the mold can use external pressing plates to fix the assembled upper die 1 and the assembled lower die 2 respectively, effectively enhancing the overall use effect and greatly facilitating the normal use work of the whole, which is beneficial to improving the overall work fluency. Due to the structural characteristics and setting positions of the upper die assembly reserved groove 7 and the lower die assembly reserved groove 9, the primary punch 10 and the secondary punch 11 can achieve a docking effect more smoothly and stably when the assembled upper die 1 and the assembled lower die 2 are closed, so as to ensure that the mold can more efficiently achieve the butt forging operation of the valve cover. By using the associated fastening bolt 14 to perform a stable butt assembly threaded connection of the assembled insert 3 in the lower die insert cavity 5, the assembly effect and assembly tightness of the assembled insert 3 in the lower die insert cavity 5 are effectively guaranteed. Through the butt-connection structure between the ejector pin hole 13 and the lower die valve cover cavity 4, the ejector pin 15 can more conveniently achieve the rapid demolding operation of the mold through the ejector pin hole 13.

[0033] Working principle:

[0034] When using this die for multi-directional die forging operation of the valve cover, the assembly and die closing operation of the upper die 1 and the lower die 2 on the multi-directional forging equipment should be completed preferentially. Before the die closing operation, the assembly insert block 3 should be inserted into the cavity 5 of the lower die insert block in alignment, so that the bottom closing fastening threaded hole 16 of the assembly insert block 3 coincides with the associated threaded hole 12. Then, the associated fastening bolt 14 is threaded through the associated threaded hole 12 and threadedly connected with the inside of the closing fastening threaded hole 16, so as to realize the installation and fastening operation of the assembly insert block 3 in the cavity 5 of the lower die insert block, and the assembly insert block 3 is assembled and fixed in the cavity 5 of the lower die insert block, so that the overall use stability of the die will not be affected by the assembled structure of the assembly insert block 3 during the multi-directional die forging operation. Move the lower die 2 with the assembly insert block 3 stably inserted into the cavity 5 of the lower die insert block to the positioning groove on the multi-directional forging equipment, then stably place the ejection thimble 15 into the thimble hole 13, and then insert an external pressing plate into the lower die pressing plate groove 8 and fix the external pressing plate with an external bolt, so as to achieve a stable fixing effect on the lower die 2. Then, the fixing and assembling operations of the first-stage punch 10 and the second-stage punch 11 are carried out respectively. One end of the first-stage punch 10 and the second-stage punch 11 is fitted and sleeved in the reserved groove 9 of the lower die assembly. The other ends of the first-stage punch 10 and the second-stage punch 11 are respectively fixedly installed on the punching cylinders on both sides of the multi-directional forging equipment through external flange sleeves. Then, the upper die 1 is stably installed at the upper end of the lower die 2 according to the alignment and adaptation structural characteristics between the sealing groove 18 and the sealing convex block 19. Place an external pressing plate into the upper die pressing plate groove 6 and fix the external pressing plate with an external bolt, so as to realize the stable die closing operation of the upper die 1 and the lower die 2 on the multi-directional forging equipment, and then the multi-directional die forging operation can be carried out normally. By optimizing and improving the internal cavity structure, the original integral cavity is optimized and improved into an assembled structure that can be combined, docked and tightly connected. An inlaid module that can be threadedly connected and fastened is adopted. With the support of its own structure and material characteristics, the heat resistance of the insert block is enhanced, and the later maintenance cost of the die is reduced. When the insert block wears too much, only the module needs to be replaced, which is convenient and fast, saving the die repair time and maintenance cost. At the same time, it can achieve the use effects of high product precision, less machining allowance, fast production efficiency and excellent mechanical properties of the material, solve the problem of die cracks, and has less die wear for long-term production forging, which is beneficial to greatly improving the overall daily output and expanding the application scope of this die in multi-directional die forging work.

[0035] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced without departing from the spirit and scope of the technical solutions of the present invention, and they should all be covered within the scope of the claims of the present invention.

Claims

1. A quick-release combined valve cover forging die, comprising an assembly upper die (1) and an assembly lower die (2), characterized in that: An upper die valve cover cavity (17) is preset at a middle position inside the assembly upper die (1), a lower die valve cover cavity (4) is preset at a middle position inside the assembly lower die (2), a lower die insert cavity (5) is preset at a lower end position inside the lower die valve cover cavity (4), an assembly insert (3) is preset inside the lower die insert cavity (5), upper die assembly reserved grooves (7) are symmetrically opened at middle positions at lower ends of both sides of the assembly upper die (1), lower die assembly reserved grooves (9) are symmetrically opened at middle positions at upper ends of both sides of the assembly lower die (2), a primary punch (10) is preset at one side position outside the assembly upper die (1) and the assembly lower die (2), and a secondary punch (11) is preset at another side position outside the assembly upper die (1) and the assembly lower die (2).

2. The rapid demoulding combined valve cover forging die according to claim 1, characterized in that: A sealing groove (18) is provided at the middle position of the inner and outer sides of the bottom of the upper assembly mold (1), and a sealing protrusion (19) is symmetrically provided at the middle position of the inner and outer sides of the upper end of the lower assembly mold (2). The fixed installation position of the sealing protrusion (19) at the upper end of the lower assembly mold (2) corresponds to the opening position of the sealing groove (18) at the bottom of the upper assembly mold (1), and the external specifications of the sealing protrusion (19) and the internal specifications of the sealing groove (18) are adapted to each other.

3. The rapid demoulding combined valve cover forging die according to claim 2, characterized in that: The external specifications of the assembly insert (3) correspond to the internal specifications of the groove of the lower mold insert cavity (5), and the upper mold pressure plate grooves (6) are symmetrically opened at the upper ends of the inner and outer sides of the assembly upper mold (1), and the lower mold pressure plate grooves (8) are symmetrically opened at the lower ends of the inner and outer sides of the assembly lower mold (2).

4. The rapid demoulding combined valve cover forging die according to claim 3, characterized in that: The upper die assembly reserved groove (7) and the lower die assembly reserved groove (9) are both semicircular groove structures with the same radius, and the inner diameters of the upper die assembly reserved groove (7) and the lower die assembly reserved groove (9) correspond to and match the outer diameters of the primary punch (10) and the secondary punch (11), and the lower die valve cover cavity (4) and the middle position of the upper end of the assembly insert (3) are both provided with a semicircular groove.

5. The rapid demoulding combined valve cover forging die according to claim 4, characterized in that: An ejector hole (13) is symmetrically provided in the middle of the bottom of the assembly lower mold (2), and an associated threaded hole (12) is symmetrically provided in the middle of the bottom of the assembly lower mold (2). An associated fastening bolt (14) is movably installed outside the associated threaded hole (12), and a demoulding ejector pin (15) is movably installed outside the ejector pin hole (13). The external thread specifications of the associated fastening bolt (14) correspond to the internal thread specifications of the associated threaded hole (12), and the external specifications of the demoulding ejector pin (15) correspond to the internal specifications of the ejector pin hole (13).

6. The rapid demoulding combined valve cover forging die according to claim 5, characterized in that: The associated threaded hole (12) passes through the bottom of the assembly lower mold (2) and is connected to the interior of the lower mold insert cavity (5), and the ejector pin hole (13) passes through the assembly lower mold (2) and is connected to the interior of the lower mold valve cover cavity (4). Fastening threaded holes (16) are symmetrically opened at both sides of the bottom of the assembly insert (3). The opening position of the fastening threaded hole (16) at the bottom of the assembly insert (3) corresponds to the opening position of the associated threaded hole (12) at the bottom of the assembly lower mold (2). The inner hole specifications of the fastening threaded hole (16) are compatible with the external thread specifications of the associated fastening bolt (14).

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