Die-casting die for engine body

Abstract

The utility model provides an engine body die-casting die which comprises an engine body, an upper die and a lower die, a fixing plate is fixedly arranged at the top of the upper die, a hydraulic rod is fixedly arranged at the top of the fixing plate and fixedly arranged on the engine body, a die groove is formed in the lower die, a mounting cavity is formed in the bottom of the engine body, and the hydraulic rod is fixedly arranged in the mounting cavity. A finished workpiece can be ejected out of a mold groove by arranging a top plate, an ejector rod and a second hydraulic rod, meanwhile, the finished workpiece can be ejected out for the second time by arranging a center top plate and a gear mechanism, a worker can take out the finished workpiece conveniently, damage caused by manual taking out is avoided, and meanwhile the forming efficiency of the device is improved; by arranging the cooling assembly, after die casting is completed, the upper die and the lower die can be filled with cooling liquid through a connecting pipe and a second connecting pipe, a finished workpiece is comprehensively cooled through a cooling pipe and a cooling ring, the workpiece forming effect is improved, and meanwhile the finished workpiece can be conveniently ejected out.

Description

Technical Field

[0001] The utility model relates to the technical field of die casting moulds, in particular to a die casting mould for an engine body. Background Art

[0002] Die casting mold is a tool for casting metal parts, a tool that completes the die casting process on a special die casting die forging machine. The basic process of die casting is: the molten metal is first cast and filled into the mold cavity at a low speed or high speed. The mold has a movable cavity surface, which is pressurized and forged with the cooling process of the molten metal, which not only eliminates the shrinkage and porosity defects of the blank, but also makes the internal structure of the blank reach the broken grains in the forged state. The comprehensive mechanical properties of the blank are significantly improved.

[0003] Publication number "CN212469707U" provides a die-casting mold for an engine casing that is easy to demold, including a body, the inner walls of the opposite sides of the body are provided with electric slide rails, the switch control ends of the two electric slide rails are electrically connected to the control module, the inner walls of the two electric slide rails are slidably connected to the same fixed seat through a slider, the inner walls of the opposite sides of the fixed seat are provided with sliding grooves, the inner walls of the two sliding grooves are slidably connected to the same lower die seat through a slider, and the top outer wall of the body is fixed with a first collision sensor by bolts. The utility model is provided with structures such as electric slide rails and fixed seats. After die-casting, the electric slide rail switch is started, so that the fixed seat drives the lower die seat to move left and right. Multiple fixed seats can be installed on the inner wall of the electric slide rail at the same time. After each material is die-cast, the fixed seat is removed, and then the second material is die-cast, which greatly saves working time and improves work efficiency.

[0004] However, the above technical solutions and the prior art have the following defects:

[0005] After the engine collective die-casting mold is completed, the finished workpiece is often difficult to remove. The finished workpiece may be damaged during the removal process, thus affecting the quality of the finished workpiece. In addition, the finished workpiece often needs to be cooled after being taken out. Because of the difficulty in taking out, the best time for cooling is delayed, which not only affects the efficiency of mold forming, but also further causes a decline in the quality of the finished workpiece. Utility Model Content

[0006] The purpose of the utility model is to provide an engine body die-casting mold to solve the problems raised in the above background technology.

[0007] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0008] An engine body die-casting mold, comprising an engine body, an upper mold and a lower mold, wherein a fixing plate is fixedly arranged on the top of the upper mold, a hydraulic rod is fixedly arranged on the top of the fixing plate, and the hydraulic rod is fixedly arranged on the engine body, a mold groove is opened in the lower mold, and an installation cavity is opened at the bottom of the engine body;

[0009] An ejector assembly, which is disposed in the mounting cavity and is used to eject the finished die-cast workpiece out of the die slot;

[0010] A cooling component is arranged inside the upper mold and the lower mold, and is used to cool the finished workpiece after the die-casting is completed.

[0011] Preferably, the ejection assembly includes a top plate movably arranged in the mold groove, two ejector rods are fixedly and symmetrically arranged on one side of the bottom of the top plate, an ejection groove is opened at the center of the top plate, a center ejector rod is movably arranged in the ejection groove, the surface of the center ejector rod is flush with the surface of the top plate, a support block is fixedly arranged on one side of the ejector rod, a second hydraulic rod is fixedly arranged at the bottom of the support block, and a gear mechanism for secondary ejection of the finished workpiece is arranged at the bottom of the center ejector rod.

[0012] Preferably, the gear mechanism includes a sliding tooth plate fixedly arranged at the bottom of the central top rod, support rods are arranged on both sides of the sliding tooth plate, the sliding tooth plate is movably arranged in the support rods on both sides, a fixed tooth plate is arranged on one side of the support rod, the fixed tooth plate and the sliding tooth plate are meshed with each other through gears, the gears are rotatably arranged on a connecting plate, and the connecting plate is fixedly arranged on the support block.

[0013] Preferably, a limiting groove is arranged on the top of the support rod, and the bottom of the central top rod is movably arranged in the limiting groove, and the support rod is in close contact with the surface of the support block.

[0014] Preferably, the cooling assembly includes a coolant tank and a recovery tank fixedly arranged in the installation cavity, one side of the coolant tank is fixedly connected with a liquid inlet pipe, one end of the liquid inlet pipe passes through the upper mold and is fixedly connected with the cooling pipe, the cooling pipe is fixedly arranged inside the upper mold, one end of the cooling pipe is fixedly connected with a liquid outlet pipe, the liquid outlet pipe is fixedly connected with the recovery tank, a cooling ring is fixedly arranged in the lower mold, one end of the cooling ring is fixedly connected with the connecting pipe, the other end of the cooling ring is fixedly connected with the second liquid outlet pipe, and the second liquid outlet pipe is fixedly connected with the recovery tank.

[0015] Preferably, a plurality of guide rods are symmetrically and equidistantly arranged at the bottom of the upper mold, a second connecting tube is fixedly arranged in one of the guide rods, one end of the second connecting tube is fixedly connected to a cooling tube, a guide groove is opened on the lower mold at a position corresponding to the guide rod, a connecting tube is fixedly arranged in the guide groove, the diameter of the connecting tube is larger than the diameter of the second connecting tube, and the second connecting tube can be inserted into the connecting tube.

[0016] Preferably, a control panel is fixedly provided on the machine body, the control panel is electrically connected to a program controller inside the machine body, and the program controller is electrically connected to all electronic components in the machine body.

[0017] Compared with the prior art, the beneficial effects of the utility model are:

[0018] 1. The utility model can eject the finished workpiece from the mold groove by setting the ejector plate, the ejector rod and the second hydraulic rod. At the same time, by setting the central ejector plate and the gear mechanism, the finished workpiece can be ejected for a second time, which is convenient for the staff to take out, avoids the damage caused by manual taking out, and improves the molding efficiency of the device.

[0019] 2. The utility model provides a cooling assembly, and after the die casting is completed, the upper and lower molds can be filled with coolant through the connecting pipe and the second connecting pipe, and the finished workpiece is fully cooled through the cooling pipe and the cooling ring, thereby improving the workpiece molding effect and facilitating the ejection of the finished workpiece. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a three-dimensional schematic diagram of the overall structure of the utility model;

[0021] Figure 2 It is a three-dimensional schematic diagram of the internal structure of the utility model;

[0022] Figure 3 It is a three-dimensional schematic diagram of the ejection assembly structure of the utility model;

[0023] Figure 4 It is a side sectional view of the ejection assembly of the utility model;

[0024] Figure 5 It is a three-dimensional schematic diagram of the cooling component structure of the utility model.

[0025] In the figure: 1. machine body; 2. upper mold; 3. lower mold; 4. fixed plate; 5. hydraulic rod; 6. mold groove; 7. mounting cavity; 8. top plate; 9. ejector rod; 10. ejector groove; 11. center ejector rod; 12. support block; 13. second hydraulic rod; 14. sliding gear plate; 15. support rod; 16. fixed gear plate; 17. gear; 18. connecting plate; 19. limit groove; 20. coolant tank; 21. recovery tank; 22. liquid inlet pipe; 23. cooling pipe; 24. liquid outlet pipe; 25. cooling ring; 26. connecting pipe; 27. second liquid outlet pipe; 28. guide rod; 29. ​​second connecting pipe; 30. guide groove; 31. control panel. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] See also Figure 1-5 , the utility model provides a technical solution:

[0028] Embodiment 1:

[0029] An engine body die-casting mold comprises a body 1, an upper mold 2 and a lower mold 3, a fixing plate 4 is fixedly arranged on the top of the upper mold 2, a hydraulic rod 5 is fixedly arranged on the top of the fixing plate 4, the hydraulic rod 5 is fixedly arranged on the body 1, a mold groove 6 is provided in the lower mold 3, an installation cavity 7 is provided at the bottom of the body 1, a control panel 31 is fixedly arranged on the body 1, the control panel 31 is electrically connected to a program controller inside the body 1, and the program controller is electrically connected to all electronic components in the body 1. In this embodiment, the hydraulic rod 5 can drive the upper mold 2 to press down to complete the die-casting of the engine body in the lower mold 3, the mold groove 6 is used to place the processing mold, the installation cavity 7 is used to provide an installation space, and the control panel 31 can control all electronic components through the program controller;

[0030] An ejector assembly is disposed in the mounting cavity 7 and is used to eject the finished die-cast workpiece out of the die groove 6;

[0031] A cooling component is arranged inside the upper mold 2 and the lower mold 3 and is used to cool the finished workpiece after the die-casting.

[0032] Embodiment 2:

[0033] On the basis of the first embodiment, this embodiment describes one of the implementable structures of the ejection assembly, the ejection assembly includes a top plate 8 movably arranged in the mold groove 6, two ejector rods 9 are fixedly and symmetrically arranged on one side of the bottom of the top plate 8, an ejection groove 10 is opened at the center of the top plate 8, a center ejector rod 11 is movably arranged in the ejection groove 10, the surface of the center ejector rod 11 is flush with the surface of the top plate 8, a support block 12 is fixedly arranged on one side of the ejector rod 9, a second hydraulic rod 13 is fixedly arranged at the bottom of the support block 12, and a gear mechanism for secondary ejection of the finished workpiece is arranged at the bottom of the center ejector rod 11. In this embodiment, the top plate 8 is used to place the processing mold. After the processing is completed, the second hydraulic rod 13 can drive the ejector rod 9 to eject the top plate 8 out of the mold groove 6, so that the operator can take out the finished workpiece conveniently.

[0034] Embodiment three:

[0035] On the basis of the second embodiment, this embodiment describes one of the implementable structures of the gear mechanism, the gear mechanism includes a sliding tooth plate 14 fixedly arranged at the bottom of the central top rod 11, support rods 15 are arranged on both sides of the sliding tooth plate 14, the sliding tooth plate 14 is movably arranged in the support rods 15 on both sides, a fixed tooth plate 16 is arranged on one side of the support rod 15, the fixed tooth plate 16 and the sliding tooth plate 14 are meshed with each other through a gear 17, the gear 17 is rotatably arranged on the connecting plate 18, the connecting plate 18 is fixedly arranged on the support block 12, a limiting groove 19 is arranged on the top of the support rod 15, the bottom of the central top rod 11 is movably arranged in the limiting groove 19, and the support rod 15 is in close contact with the surface of the support block 12;

[0036] In this embodiment, the bottom of the center push rod 11 is fixedly connected to the sliding tooth plate 14, and the surface area of ​​the sliding tooth plate 14 is smaller than that of the center push rod 11, so the sliding tooth plate 14 is not affected by the limiting groove 19. At the same time, the support rod 15 cannot pass through the ejection groove 10. The support rod 15 can be driven by the support block 12 to move upward under the action of friction. When it moves to the bottom of the mold groove 6, it will be blocked and cannot continue to move upward. At this time, the support blocks 12 on both sides can continue to drive the gear 17 on the connecting plate 18 to continue to move. The gear 17 is engaged with the fixed tooth plate 16, so that it can rotate on the fixed tooth plate 16. When the gear 17 rotates, it drives the sliding tooth plate 14 to continue to move upward, thereby driving the center push rod 11 to move upward, realizing the secondary ejection of the finished workpiece, making it convenient for the operator to take out the finished workpiece, and improving the demolding efficiency.

[0037] Embodiment 4:

[0038] On the basis of the first embodiment, this embodiment describes one of the implementable structures of the cooling assembly, the cooling assembly includes a coolant tank 20 and a recovery tank 21 fixedly arranged in the mounting cavity 7, one side of the coolant tank 20 is fixedly connected with a liquid inlet pipe 22, one end of the liquid inlet pipe 22 passes through the upper mold 2 and is fixedly connected with a cooling pipe 23, the cooling pipe 23 is fixedly arranged inside the upper mold 2, one end of the cooling pipe 23 is fixedly connected with a liquid outlet pipe 24, the liquid outlet pipe 24 is fixedly connected with the recovery tank 21, a cooling ring 25 is fixedly arranged in the lower mold 3, one end of the cooling ring 25 is fixedly connected with the connecting pipe 26, the other end of the cooling ring 25 is fixedly connected with the second liquid outlet pipe 27, and the second liquid outlet pipe 27 is fixedly connected with the recovery tank 21;

[0039] A plurality of guide rods 28 are symmetrically arranged at the bottom of the upper mold 2, a second connecting tube 29 is fixedly arranged in one of the guide rods 28, one end of the second connecting tube 29 is fixedly connected to the cooling tube 23, a guide groove 30 is opened on the lower mold 3 at a position corresponding to the guide rod 28, a connecting tube 26 is fixedly arranged in the guide groove 30, the diameter of the connecting tube 26 is larger than the diameter of the second connecting tube 29, and the second connecting tube 29 can be inserted into the connecting tube 26;

[0040] In this embodiment, the guide rod 28 can be inserted into the guide groove 30 to guide the pressing, so that the die casting process is more accurate. At the same time, during the guiding process, the second connecting pipe 29 is inserted into the connecting pipe 26. A sealing ring is provided at the connection between the guide rod 28 and the guide groove 30, so that the coolant can be prevented from overflowing.

[0041] The coolant tank 20 is provided with coolant and a water pump, and the coolant can be transferred to the liquid inlet pipe 22 by the water pump. At this time, a part of the coolant enters the cooling pipe 23 to cool the upper mold 2 internally, and then passes into the recovery tank 21 through the liquid outlet pipe 24. The other part of the coolant passes into the cooling ring 25 through the second connecting pipe 29 and the connecting pipe 26 to cool the interior of the lower mold 3, and finally passes into the recovery tank 21 through the second liquid outlet pipe 27.

[0042] The hydraulic rod 5, the second hydraulic rod 13, the water pump, the sealing ring, the control panel 31 and the program controller are devices or equipment existing in the prior art, or are devices or equipment that can be realized in the prior art, and the specifications and models of the hydraulic rod 5, the second hydraulic rod 13, the water pump, the sealing ring, the control panel 31 and the program controller are well known to those skilled in the art and will not be described in detail here.

[0043] Working principle: Before die-casting, the engine body mold is first placed on the top plate 8 in the mold groove 6, and then the guide rod 28 is inserted into the guide groove 30 to make the pressing more accurate. At this time, the second connecting pipe 29 is inserted into the connecting pipe 26. A sealing ring is provided at the connection between the guide rod 28 and the guide groove 30 to prevent the coolant from overflowing. The hydraulic rod 5 is controlled to press the engine body mold;

[0044] After the pressing is completed, the water pump in the coolant tank 20 is controlled by the control panel 31 to transfer the coolant to the liquid inlet pipe 22. At this time, a part of the coolant enters the cooling pipe 23 to cool the upper mold 2 internally and then passes into the recovery tank 21 through the liquid outlet pipe 24. The other part of the coolant passes into the cooling ring 25 through the second connecting pipe 29 and the connecting pipe 26 to cool the inside of the lower mold 3 and finally passes into the recovery tank 21 through the second liquid outlet pipe 27. At this time, the finished workpiece is completely cooled, which improves the molding efficiency.

[0045] After all the coolant is recovered into the recovery box 21, the hydraulic rod 5 is controlled to lift the upper mold 2, and the second hydraulic rod 13 is controlled to drive the ejector rod 9 to eject the ejector plate 8 out of the mold groove 6. During the ejection process, the support rod 15 can be driven by the support block 12 to move upward under the action of friction. When it moves to the bottom of the mold groove 6, it will be blocked and cannot move further upward. At this time, the support blocks 12 on both sides can continue to drive the gear 17 on the connecting plate 18 to continue to move. The gear 17 is engaged with the fixed tooth plate 16, so that it can rotate on the fixed tooth plate 16. While the gear 17 rotates, it drives the sliding tooth plate 14 to continue to move upward, thereby driving the center ejector rod 11 to move upward, realizing the secondary ejection of the finished workpiece, making it convenient for the operator to take out the finished workpiece, and improving the demolding efficiency.

[0046] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An engine body die-casting mold, comprising an engine body (1), an upper mold (2) and a lower mold (3), characterized in that: A fixing plate (4) is fixedly arranged on the top of the upper mold (2), a hydraulic rod (5) is fixedly arranged on the top of the fixing plate (4), and the hydraulic rod (5) is fixedly arranged on the machine body (1); a mold groove (6) is provided in the lower mold (3), and a mounting cavity (7) is provided at the bottom of the machine body (1); An ejector assembly, the ejector assembly being arranged in the mounting cavity (7) and being used for ejecting a finished die-cast workpiece out of the die groove (6); A cooling component is arranged inside the upper mold (2) and the lower mold (3) and is used to cool the finished workpiece after die-casting.

2. The die-casting mold for an engine body according to claim 1, characterized in that: The ejection assembly comprises a top plate (8) movably arranged in a mold groove (6), two ejector rods (9) are fixedly and symmetrically arranged on one side of the bottom of the top plate (8), an ejection groove (10) is opened at the center of the top plate (8), a central ejector rod (11) is movably arranged in the ejection groove (10), the surface of the central ejector rod (11) is flush with the surface of the top plate (8), a support block (12) is fixedly arranged on one side of the ejector rod (9), a second hydraulic rod (13) is fixedly arranged at the bottom of the support block (12), and a gear mechanism for secondary ejection of a finished workpiece is arranged at the bottom of the central ejector rod (11).

3. The die-casting mold for an engine body according to claim 2, characterized in that: The gear mechanism comprises a sliding tooth plate (14) fixedly arranged at the bottom of the central top rod (11), support rods (15) are arranged on both sides of the sliding tooth plate (14), the sliding tooth plate (14) is movably arranged in the support rods (15) on both sides, a fixed tooth plate (16) is arranged on one side of the support rod (15), the fixed tooth plate (16) and the sliding tooth plate (14) are meshed with each other through a gear (17), the gear (17) is rotatably arranged on a connecting plate (18), and the connecting plate (18) is fixedly arranged on the supporting block (12).

4. The die-casting mold for an engine body according to claim 3, characterized in that: A limiting groove (19) is arranged on the top of the support rod (15), and the bottom of the central top rod (11) is movably arranged in the limiting groove (19), and the support rod (15) is in close contact with the surface of the support block (12).

5. The die-casting mold for an engine body according to claim 1, characterized in that: The cooling assembly comprises a cooling liquid tank (20) and a recovery tank (21) fixedly arranged in the installation cavity (7); one side of the cooling liquid tank (20) is fixedly connected with a liquid inlet pipe (22); one end of the liquid inlet pipe (22) passes through the upper mold (2) and is fixedly connected with a cooling pipe (23); the cooling pipe (23) is fixedly arranged inside the upper mold (2); one end of the cooling pipe (23) is fixedly connected with a liquid outlet pipe (24); the liquid outlet pipe (24) is fixedly connected with the recovery tank (21); a cooling ring (25) is fixedly arranged in the lower mold (3); one end of the cooling ring (25) is fixedly connected with a connecting pipe (26); the other end of the cooling ring (25) is fixedly connected with a second liquid outlet pipe (27); the second liquid outlet pipe (27) is fixedly connected with the recovery tank (21).

6. The die-casting mold for an engine body according to claim 1, characterized in that: A plurality of guide rods (28) are symmetrically arranged at an equal distance at the bottom of the upper mold (2); a second connecting tube (29) is fixedly arranged inside one of the guide rods (28); one end of the second connecting tube (29) is fixedly connected to a cooling tube (23); a guide groove (30) is provided on the lower mold (3) at a position corresponding to the guide rod (28); a connecting tube (26) is fixedly arranged inside the guide groove (30); the diameter of the connecting tube (26) is larger than the diameter of the second connecting tube (29); and the second connecting tube (29) can be inserted into the connecting tube (26).

7. The die-casting mold for an engine body according to claim 1, characterized in that: A control panel (31) is fixedly arranged on the machine body (1); the control panel (31) is electrically connected to a program controller inside the machine body (1); and the program controller is electrically connected to all electronic components inside the machine body (1).

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