Die casting mold with insert

Abstract

The present application discloses a die-casting mold with an insert, including a lower die seat, an upper die seat, a vertical plate, a bottom plate, a first reinforcing rib plate, a mounting hole, a fixed limit seat, a cavity, a round hole, an entry groove, a mold cavity, an insert, a margin groove, an elastic pull rod, an outer tube, a spiral spring, a movable rod, a lifting cylinder, a connecting block, a positioning column, a positioning hole, a pouring port, an interlocking through groove, a clamping cylinder, a connecting rod, a cross rod, a second reinforcing rib plate, a third reinforcing rib plate, a pressure strip, a truncated cone groove, a truncated cone block, a connecting hole, an ejection oil cylinder, an ejection rod, an ejection guide hole and a stop bar. The present application is beneficial in that it has a margin groove and a pressure strip, and after the mold is closed, a margin space can be formed, so that the processed workpiece has a surplus material, and the surplus material position provides a position for ejection, which is used for the ejection rod to perform ejection pressing. This design avoids directly pressing the workpiece, causing damage or deformation of the workpiece, has a protective effect on the workpiece, and improves the yield rate.

Description

Technical Field

[0001] The present application relates to a die-casting mold, in particular to a die-casting mold with an insert. Background Art

[0002] A die-casting mold is a tool for casting metal parts, a tool that completes the die-casting process on a special die-casting forging machine; the basic process of die-casting is: the molten metal is first cast and filled into the mold cavity at a low or high speed, and the mold has a movable cavity surface, which is pressurized and forged as the molten metal cools, which not only eliminates the shrinkage defects of the blank, but also makes the internal structure of the blank reach the broken grains in the forged state; die-casting molds are widely used in the processing of automotive parts.

[0003] Existing die-casting molds may have inserts, which are generally directly embedded in them, lacking a limiting structure, and the installation effect may be insufficient; at the same time, when demolding, the workpiece may generally be directly pushed, which is easy to lose the workpiece and thus cause defective products. Therefore, in order to solve the above problems, a die-casting mold with an insert is proposed. Summary of the invention

[0004] The top end of the support leg is connected with the support of the upper mold base, and the bottom end of the support leg is connected with the support leg of the lower mold base. The two sides are fixedly connected with two lifting cylinders, the output end of the lifting cylinder is fixedly connected to the connecting block, the connecting block is fixedly connected to the side wall of the upper mold base, the back of the upper mold base is fixedly connected with a clamping cylinder, the output end of the clamping cylinder is fixedly connected with a connecting rod, the end of the connecting rod is fixedly connected to the middle part of the cross rod, the four ends of the cross rod are fixedly connected with a pressure strip, and the pressure strip passes through the embedded through groove provided on the upper mold base; the top of the lower mold base is provided with four residual grooves surrounding the cavity, the residual grooves are connected and installed in communication with the cavity, the bottom of the lower mold base is provided with four ejection guide holes, the ejection guide holes are connected and installed in communication with the bottom of the residual grooves, the bottom of the ejection guide holes is provided with an ejection oil cylinder, the ejection oil cylinder is fixedly installed on the top surface of the bottom plate, the output top end of the ejection oil cylinder is fixedly connected with an ejection rod, and the ejection rod is matched and connected with the ejection guide hole.

[0005] Furthermore, a plurality of mounting holes are provided on both sides of the bottom plate, and a plurality of first reinforcing rib plates are fixedly connected to the connection between the bottom plate and the vertical plate.

[0006] Furthermore, the elastic pull rod includes an outer tube, a coil spring and a movable rod. The outer tube is connected to the movable rod with a clearance fit. The coil spring is arranged inside the outer tube. The outer tube and the movable rod are elastically connected through the coil spring. The bottom end of the movable rod is fixedly connected to the baffle.

[0007] Furthermore, one end of the coil spring is fixedly connected to the inner wall of the outer tube, and the other end of the coil spring is fixedly connected to the top end of the movable rod.

[0008] Furthermore, a truncated cone groove is provided at the bottom of the insert, a truncated cone block is connected with the internal clearance of the truncated cone groove, and the truncated cone block is fixedly connected to the top end of the outer tube.

[0009] Furthermore, four positioning columns are fixedly connected to the bottom of the upper die base.

[0010] Furthermore, four positioning holes are formed on the top of the lower die base.

[0011] Furthermore, a pouring port is provided on the upper mold base.

[0012] Furthermore, four second reinforcing rib plates are fixedly connected to the connection between the cross rod and one end of the connecting rod.

[0013] Furthermore, a third reinforcing rib plate is fixedly connected to the connection between the outer shell of the clamping cylinder and the back side of the upper die seat.

[0014] The beneficial effect of the present application is that the present application provides a die-casting mold with an insert which is easy to demould and can provide a limit for the insert. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0016] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present application;

[0017] Figure 2 This is a schematic diagram of the structure of an insert, an elastic pull rod and a fixed limit seat according to an embodiment of the present application;

[0018] Figure 3 This is a schematic diagram of the elastic pull rod structure of an embodiment of the present application;

[0019] Figure 4 This is a schematic diagram of the fixed limit seat and the movable rod structure of an embodiment of the present application;

[0020] Figure 5 This is a schematic diagram of the structure of a movable rod and a baffle bar according to an embodiment of the present application;

[0021] Figure 6 This is a schematic diagram of the bottom structure of an upper mold base according to an embodiment of the present application;

[0022] Figure 7 This is a schematic diagram of the top structure of the lower mold base according to an embodiment of the present application;

[0023] Figure 8 This is a schematic diagram of the top structure of a fixed limiting seat according to an embodiment of the present application.

[0024] In the figure: 1. lower die base, 2. upper die base, 3. vertical plate, 4. bottom plate, 5. first reinforcing rib plate, 6. mounting hole, 7. fixed limit seat, 7-1. cavity, 7-2. round hole, 7-3. entry groove, 8. cavity, 9. insert, 10. margin groove, 11. elastic pull rod, 11-1. outer tube, 11-2. spiral spring, 11-3. movable rod, 12. lifting cylinder, 13. connecting block, 14. positioning column, 15. positioning hole, 16. pouring port, 17. interlocking through groove, 18. clamping cylinder, 19. connecting rod, 20. cross rod, 21. second reinforcing rib plate, 22. third reinforcing rib plate, 23. pressure strip, 24. truncated cone groove, 25. truncated cone block, 26. connecting hole, 27. ejector cylinder, 28. ejector rod, 29. ejector guide hole, 30. stop bar. DETAILED DESCRIPTION

[0025] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present application.

[0026] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequential order. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the present application described here. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device comprising a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0027] In the present application, the terms "upper", "lower", "left", "right", "front", "back", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings. These terms are mainly used to better describe the present application and its embodiments, and are not used to limit the indicated devices, elements or components to have a specific orientation, or to be constructed and operated in a specific orientation.

[0028] In addition, some of the above terms may be used to express other meanings in addition to indicating orientation or positional relationship. For example, the term "on" may also be used to express a certain dependency or connection relationship in some cases. For those of ordinary skill in the art, the specific meanings of these terms in this application can be understood according to specific circumstances.

[0029] In addition, the terms "installed", "set", "provided with", "connected", "connected", and "socketed" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection, or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, elements, or components. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0030] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0031] See also Figure 1-8As shown, a die-casting mold with an insert comprises a lower die base 1 and an upper die base 2, both sides of the bottom of the lower die base 1 are fixedly connected with vertical plates 3, the bottom of the vertical plates 3 is fixedly connected to the top of the bottom plate 4, an insert 9 is arranged inside the lower die base 1, a cavity 8 is formed between the insert 9 and the lower die base 1, a connecting hole 26 is opened at the bottom center of the lower die base 1, an elastic pull rod 11 in a stretched state is rotatably connected at the bottom center of the insert 9, the elastic pull rod 11 passes through the connecting hole 26, and the bottom end of the elastic pull rod 11 is fixedly connected with a stop bar 30, and the middle position of the bottom plate 4 is fixedly connected There is a fixed limit seat 7, the top of the fixed limit seat 7 is provided with a circular hole 7-2 and two symmetrically arranged entry grooves 7-3, the interior of the fixed limit seat 7 is provided with a cavity 7-1, the cavity 7-1 is connected and installed with the circular hole 7-2 and the entry groove 7-3, the bottom end of the elastic pull rod 11 passes through the circular hole 7-2, the baffle 30 is located inside the cavity 7-1, and a cavity 8 is formed by the insert 9 and the lower mold seat 1, and the shape of the cavity 8 can be changed to meet the processing of different workpieces. At the same time, the insert 9 is tightened by the elastic pull rod 11, and the bottom end of the elastic pull rod 11 has a baffle, which can be used for baffles in conjunction with the design of the fixed limit seat 7. The strip provides a limiting effect, thereby maintaining the stretched state of the elastic pull rod 11, which can continuously provide a downward pressing force for the insert 9, ensuring the stability of the installation of the insert 9. At the same time, the insert 9 is also easy to disassemble and assemble. The disassembly and assembly can be achieved by pulling the elastic pull rod 11 and rotating the elastic pull rod 11. The overall use is convenient, and the replacement operation is as follows: replace the insert 9 according to the processing requirements, first remove the installed insert 9, rotate the movable rod 11-3, so that the blocking bar 30 is aligned with the entry groove 7-3, and slowly loosen the movable rod 11-3. The elastic force of the coil spring 11-2 makes the movable rod 11-3 move upward and contact with the fixed limit The seat 7 is disengaged, and the insert 9 is pulled upward to remove the insert 9. Then, the required insert 9 is placed in the lower die seat 1. The elastic pull rod 11 passes through the connecting hole 26. Then, the movable rod 11-3 is pulled, and the movable rod 11-3 is rotated at the same time, so that the blocking bar 30 is aligned with the entry groove 7-3. The movable rod 11-3 is pulled down, and the blocking bar 30 passes through the entry groove 7-3 until it enters the cavity 7-1. Then, the movable rod 11-3 is rotated 90°, so that the top of the cavity 7-1 blocks the blocking bar 30, thereby maintaining the tension state of the elastic pull rod 11, which can continuously provide a downward pressing force for the insert 9, ensuring the stability of the installation of the insert 9;

[0032] Two lifting cylinders 12 are fixedly connected to both sides of the lower die base 1, and the output ends of the lifting cylinders 12 are fixedly connected to the connecting blocks 13, and the connecting blocks 13 are fixedly connected to the side walls of the upper die base 2. A clamping cylinder 18 is fixedly connected to the back of the upper die base 2, and a connecting rod 19 is fixedly connected to the output end of the clamping cylinder 18. The end of the connecting rod 19 is fixedly connected to the middle of the cross rod 20, and the four ends of the cross rod 20 are fixedly connected with a pressure strip 23, and the pressure strip 23 passes through the interlocking groove 17 provided on the upper die base 2. In addition to the ejection design, the overall structure also has a clamping design, that is, the clamping cylinder 18, the connecting rod 19, the cross rod 20, and the pressure strip 23. When the mold is opened, the pressure strip 23 can provide a downward pressure force for the above-mentioned workpiece surplus material position. When the upper die base 2 is upward, it is guaranteed to be separated from the workpiece, avoid the sticking phenomenon, and is beneficial to the demolding of the workpiece;

[0033] The top of the lower die base 1 is provided with four margin grooves 10 surrounding the cavity 8, and the margin grooves 10 are connected and installed with the cavity 8. The bottom of the lower die base 1 is provided with four ejection guide holes 29, and the ejection guide holes 29 are connected and installed with the bottom of the margin grooves 10. The bottom of the ejection guide holes 29 is provided with an ejection oil cylinder 27, and the ejection oil cylinder 27 is fixedly installed on the top surface of the bottom plate 4. The output top of the ejection oil cylinder 27 is fixedly connected with an ejection rod 28, and the ejection rod 28 is connected with the ejection guide hole 29. Multiple oil cylinders are used for operation, opening and closing the mold, and manual operation is not required, and the labor intensity is low. The margin grooves 10 and the pressure strips 23 are further provided. After the mold is closed, a margin space can be formed, so as to keep the processed workpiece with surplus material. The surplus material position provides a position for ejection, and is used for the ejection rod 28 to perform ejection pressing. This design avoids directly pressing the workpiece, causing damage or deformation of the workpiece, has a protective effect on the workpiece, and improves the yield rate. .

[0034] A plurality of mounting holes 6 are provided on both sides of the bottom plate 4, and a plurality of first reinforcing rib plates 5 are fixedly connected at the connection between the bottom plate 4 and the vertical plate 3. The entire die-casting mold provides mounting holes through the mounting holes 6, and the overall installation is achieved by bolts and installed on a workbench; the elastic pull rod 11 includes an outer tube 11-1, a coil spring 11-2 and a movable rod 11-3, the outer tube 11-1 and the movable rod 11-3 are connected with clearance fit, the coil spring 11-2 is arranged inside the outer tube 11-1, the outer tube 11-1 and the movable rod 11-3 are elastically connected through the coil spring 11-2, and the bottom end of the movable rod 11-3 is fixedly connected to the baffle 30; one end of the coil spring 11-2 is fixedly connected to the inner wall of the outer tube 11-1, and the other end of the coil spring 11-2 is fixedly connected to the top end of the movable rod 11-3, and the elastic pull rod 11 as a whole can be stretched and extended, and when extended, the internal coil spring 11 can be stretched 1-2, when the bottom limit is lost, it can be reset by the coil spring 11-2, and the insert 9 is pressed mainly by the elastic force of the coil spring 11-2 to complete the limit; a truncated cone groove 24 is provided at the bottom of the insert 9, and a truncated cone block 25 is connected with the internal clearance of the truncated cone groove 24, and the truncated cone block 25 is fixedly connected to the top of the outer tube 11-1, so as to realize the rotation connection installation of the end of the elastic pull rod 11; four positioning columns 14 are fixedly connected to the bottom of the upper mold base 2, and four positioning holes 15 are provided on the top of the lower mold base 1, and the positioning during mold closing is realized by the positioning columns 14 and the positioning holes 15; a pouring port 16 is provided on the upper mold base 2; four second reinforcing ribs 21 are fixedly connected to the connection between the cross rod 20 and one end of the connecting rod 19, so as to improve the strength of the connection; a third reinforcing rib 22 is fixedly connected to the connection between the outer shell of the clamping cylinder 18 and the back of the upper mold base 2, so as to improve the connection strength between the clamping cylinder 18 and the upper mold base 2.

[0035] When the present application is in use, the electrical components appearing in the present application are all externally connected to the power supply and the control switch. The entire die-casting mold provides installation holes through the installation hole 6, and the overall installation is achieved through bolts. It is installed on the workbench. First, the entire mold is in an open mold state. The insert 9 is replaced according to the processing requirements. First, the installed insert 9 is removed. By rotating the movable rod 11-3, the baffle 30 is aligned with the entry groove 7-3, and the movable rod 11-3 is slowly loosened. The elastic force of the coil spring 11-2 makes the movable rod 11-3 move upward and disengage from the fixed limit seat 7, pulling the insert upward. 9, thereby removing the insert 9, and then placing the required insert 9 into the lower die base 1, the elastic pull rod 11 passes through the connecting hole 26, and then pulls the movable rod 11-3, and rotates the movable rod 11-3 at the same time, so that the blocking bar 30 is aligned with the entry groove 7-3, and the movable rod 11-3 is pulled down, and the blocking bar 30 passes through the entry groove 7-3 until it enters the cavity 7-1, and then the movable rod 11-3 is rotated 90°, so that the top of the cavity 7-1 blocks the blocking bar 30, thereby maintaining the tension state of the elastic pull rod 11, which can continuously provide a downward pressing force for the insert 9, ensuring the stability of the installation of the insert 9;

[0036] Then the lifting cylinder 12 is retracted, the lower die base 1 and the upper die base 2 are molded together, and pouring is performed through the pouring port 16. After processing, the mold is opened. At this time, the lifting cylinder 12 is extended, so that the lower die base 1 and the upper die base 2 are opened, and the pressure strip 23 is pressed on the residual material, and the upper die base 2 is separated from the workpiece. Then the clamping cylinder 18 is extended, so that the structure connected to the clamping cylinder 18 moves upward, canceling the clamping of the workpiece, and further the ejection cylinder 27 is extended, and the residual material position is pushed up by the ejection rod 28 to achieve ejection and complete demoulding;

[0037] After the workpiece is taken out, the remaining material is removed to complete the processing.

[0038] The benefits of this application are:

[0039] The entire die-casting mold has an insert 9, which forms a cavity 8 with the lower die seat 1. The shape of the cavity 8 can be changed to meet the processing needs of different workpieces. At the same time, the insert 9 is tightened by an elastic pull rod 11. The bottom end of the elastic pull rod 11 has a stop bar. Combined with the design of the fixed limit seat 7, it can provide a limiting effect for the stop bar, thereby maintaining the stretched state of the elastic pull rod 11. It can continuously provide a downward clamping force for the insert 9, thereby ensuring the stability of the installation of the insert 9. At the same time, the insert 9 is also easy to disassemble and assemble. Disassembly and assembly can be achieved by pulling and rotating the elastic pull rod 11, and the overall use is convenient.

[0040] At the same time, the whole adopts multiple oil cylinders to operate, open and close the mold, no manual operation is required, and the labor intensity is low. It is further provided with a surplus groove 10 and a pressure strip 23. After the mold is closed, a surplus space can be formed to keep the processed workpiece with surplus material. The position of the surplus material provides a position for ejection, and is used for the ejection rod 28 to perform ejection pressing. This design avoids directly pressing the workpiece to cause damage or deformation of the workpiece, has a protective effect on the workpiece, and improves the yield rate.

[0041] In addition to the ejection design, the overall structure also has a clamping design, namely, a clamping cylinder 18, a connecting rod 19, a cross rod 20, and a pressure strip 23. When the mold is opened, the pressure strip 23 can provide a downward pressure force for the above-mentioned workpiece residual material position. When the upper mold base 2 moves upward, it ensures separation from the workpiece, avoids mold sticking, and is beneficial to the demolding of the workpiece.

[0042] The circuits, electronic components and modules involved are all prior art and can be fully implemented by those skilled in the art, and needless to say, the content protected by this application does not involve improvements to software and methods.

[0043] The above description is only the preferred embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A die-casting mold with an insert, characterized in that: The present invention comprises a lower die base (1) and an upper die base (2), wherein both sides of the bottom of the lower die base (1) are fixedly connected to vertical plates (3), the bottom of the vertical plates (3) is fixedly connected to the top of the bottom plate (4), an insert (9) is arranged inside the lower die base (1), a cavity (8) is formed between the insert (9) and the lower die base (1), a connecting hole (26) is opened at the center position of the bottom of the lower die base (1), an elastic pull rod (11) in a stretched state is rotatably connected at the center position of the bottom of the insert (9), and the elastic pull rod (11) passes through the connecting hole (26). ), and the bottom end of the elastic pull rod (11) is fixedly connected to a baffle (30), the middle position of the bottom plate (4) is fixedly connected to a fixed limit seat (7), the top of the fixed limit seat (7) is provided with a circular hole (7-2) and two symmetrically arranged entry grooves (7-3), the interior of the fixed limit seat (7) is provided with a cavity (7-1), the cavity (7-1) is connected and installed with the circular hole (7-2) and the entry groove (7-3), the bottom end of the elastic pull rod (11) passes through the circular hole (7-2), and the baffle (30) is located inside the cavity (7-1); Two lifting cylinders (12) are fixedly connected to both sides of the lower die base (1), the output ends of the lifting cylinders (12) are fixedly connected to the connecting blocks (13), the connecting blocks (13) are fixedly connected to the side walls of the upper die base (2), the back of the upper die base (2) is fixedly connected to a clamping cylinder (18), the output end of the clamping cylinder (18) is fixedly connected to a connecting rod (19), the end of the connecting rod (19) is fixedly connected to the middle of a cross rod (20), the four ends of the cross rod (20) are fixedly connected to pressure strips (23), and the pressure strips (23) penetrate through the interlocking grooves (17) provided on the upper die base (2); The top of the lower die base (1) is provided with four margin grooves (10) surrounding the mold cavity (8), the margin grooves (10) being connected and installed with the mold cavity (8), the bottom of the lower die base (1) is provided with four ejection guide holes (29), the ejection guide holes (29) being connected and installed with the bottom of the margin grooves (10), the bottom of the ejection guide holes (29) being provided with an ejection oil cylinder (27), the ejection oil cylinder (27) being fixedly installed on the top surface of the bottom plate (4), the output top end of the ejection oil cylinder (27) being fixedly connected with an ejection rod (28), the ejection rod (28) being cooperatively connected with the ejection guide holes (29); The elastic pull rod (11) comprises an outer tube (11-1), a coil spring (11-2) and a movable rod (11-3); the outer tube (11-1) and the movable rod (11-3) are connected by clearance fit; the coil spring (11-2) is arranged inside the outer tube (11-1); the outer tube (11-1) and the movable rod (11-3) are elastically connected via the coil spring (11-2); and the bottom end of the movable rod (11-3) is fixedly connected to the stop bar (30); A truncated cone groove (24) is formed at the bottom of the insert (9), a truncated cone block (25) is connected to the inside of the truncated cone groove (24) in a clearance fit, and the truncated cone block (25) is fixedly connected to the top end of the outer tube (11-1); The upper die base (2) is provided with a pouring port (16).

2. The die-casting mold with insert according to claim 1, characterized in that: A plurality of mounting holes (6) are provided on both sides of the bottom plate (4), and a plurality of first reinforcing rib plates (5) are fixedly connected to the connection between the bottom plate (4) and the vertical plate (3).

3. The die-casting mold with insert according to claim 1, characterized in that: One end of the coil spring (11-2) is fixedly connected to the inner wall of the outer tube (11-1), and the other end of the coil spring (11-2) is fixedly connected to the top end of the movable rod (11-3).

4. The die-casting mold with insert according to claim 1, characterized in that: Four positioning columns (14) are fixedly connected to the bottom of the upper die seat (2).

5. The die-casting mold with insert according to claim 1, characterized in that: Four positioning holes (15) are provided on the top of the lower die base (1).

6. The die-casting mold with insert according to claim 1, characterized in that: Four second reinforcing rib plates (21) are fixedly connected to the connection between the cross rod (20) and one end of the connecting rod (19).

7. The die-casting mold with insert according to claim 1, characterized in that: A third reinforcing rib plate (22) is fixedly connected at the connection point between the outer shell of the pressing cylinder (18) and the back side of the upper die seat (2).

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