Die-casting forming device for machining high-pressure pump parts

Abstract

The invention discloses a die-casting forming device for machining parts of a high-pressure pump. The die-casting forming device comprises a machine base, a die assembly system and an injection system. The mold closing system comprises a fixed mold plate fixed on the machine base, a sliding mold plate sliding on the machine base, hydraulic driving equipment for driving the sliding mold plate to slide, and a cooling mechanism for cooling the high-pressure pump part mold; the cooling mechanism comprises a cooling box body fixed on one side of the fixed template, a low-temperature chamber and a high-temperature chamber which are arranged in the cooling box body, a snakelike pipeline fixed in the cooling box body, a liquid exchange channel communicated with the low-temperature chamber and the high-temperature chamber, an exchange-out pipe of which one end is communicated with the low-temperature chamber, and an exchange-in pipe of which one end is communicated with the high-temperature chamber; the liquid exchange pump is respectively communicated with the other ends of the exchange-out pipe and the exchange-in pipe; and the male die and the female die of the high-pressure pump part die are respectively fixed on the opposite sides of the cooling box body and the sliding template. The cooling device has the advantages that high-pressure pump die-casting parts can be uniformly cooled, and the service life of the die is prolonged.

Description

Technical Field

[0001] The present invention relates to the technical field of die-casting forming equipment for high-pressure pump components, and particularly relates to a die-casting forming device for processing high-pressure pump components. Background Art

[0002] For components such as the housing and cylinder liner of existing high-pressure pumps, due to reasons such as complex shapes and high-precision requirements, die-casting machines are often used for manufacturing. The working principle of existing die-casting machines is to lock the die of the high-pressure pump parts through the die-closing system, and then the injection punch of the injection system injects molten metal into the cavity of the high-pressure pump parts die. Then, it cooperates with the cooling mechanism to quickly cool down the high-pressure pump parts die and the parts inside the die cavity. Finally, the die-closing system separates and unlocks the female die and male die of the high-pressure pump parts die, and the required high-pressure pump parts can be obtained.

[0003] Among them, the cooling mechanism of the above-mentioned high-pressure pump parts die-casting machine usually sets a serpentine flow channel in the male die of the high-pressure pump parts die and cooperates with an external coolant circulation system. By using the way of the coolant flowing in the serpentine flow channel, the high-pressure pump parts in the die cavity are cooled. Since the coolant flows unidirectionally along the serpentine flow channel and continuously absorbs heat during the flow, the cooling effect of the coolant will gradually become worse during the process of flowing towards the outlet of the serpentine flow channel. This will not only cause uneven cooling on the surface of the high-pressure pump parts, generate internal stress, resulting in warping, deformation or even cracking, affecting the quality of the high-pressure pump parts finished products, but also the long-term uneven heating and cooling will reduce the surface hardness of the die, leading to increased die wear and shortened service life. Summary of the Invention

[0004] The purpose of the present invention is to provide a die-casting forming device for processing high-pressure pump components, which has the effects of uniformly cooling and reducing the temperature of die-cast high-pressure pump parts and prolonging the service life of the die.

[0005] The above technical purpose of the present invention is achieved through the following technical solutions: A die-casting forming device for processing high-pressure pump components includes a machine base, a die-closing system arranged on the machine base and used for opening, closing and locking the die of the high-pressure pump parts, and an injection system arranged on the machine base and injecting molten metal into the cavity of the high-pressure pump parts die. The die-closing system includes a fixed template fixedly arranged on the machine base and fixedly supporting the male die of the high-pressure pump parts die, a sliding template slidably arranged on the machine base and fixedly supporting the female die of the high-pressure pump parts die, a hydraulic driving device driving the sliding template to approach or move away from the fixed template in parallel, and a cooling mechanism arranged on the fixed template and cooling the female die of the high-pressure pump parts die. The cooling mechanism includes a cooling box body fixed to one side of the fixed template facing the sliding template, a low-temperature chamber and a high-temperature chamber arranged inside the cooling box body and storing coolant, a serpentine pipe fixed inside the cooling box body and passing through the low-temperature chamber and the high-temperature chamber, a liquid exchange channel arranged inside the cooling box body and connecting the low-temperature chamber and the high-temperature chamber, a liquid outlet pipe arranged on the top of the cooling box body and having one end connected to the low-temperature chamber, a liquid inlet pipe arranged on the top of the cooling box body and having one end connected to the high-temperature chamber, and a liquid exchange pump installed on the top of the cooling box body and respectively connecting the other ends of the liquid outlet pipe and the liquid inlet pipe; Both ends of the serpentine pipe are fixedly penetrated out of the cooling box body from the low-temperature chamber and the high-temperature chamber respectively, and are respectively fixedly connected to the input hose and the output hose of the external coolant circulation system; the convex die of the high-pressure pump part mold is fixed to one side of the cooling box body facing the sliding template, a circular channel for the output end of the injection system to pass through is arranged in the middle of the cooling box body, the circular channel is located between the low-temperature chamber and the high-temperature chamber, and a partition for separating the three is fixedly arranged inside the cooling chamber. The liquid exchange channel penetrates through the partition between the low-temperature chamber and the high-temperature chamber and is located below the circular channel.

[0006] A further setting of the present invention is that: the cooling box body includes a rectangular box body with an upward opening, and a rectangular box cover screwed to the top of the rectangular box body to close the opening of the rectangular box. The low-temperature chamber and the high-temperature chamber are respectively communicated with the opening at the top of the rectangular box body. The circular channel penetrates through the front and rear sides of the rectangular box body. The partition is arranged in the middle of the rectangular box body and divides the opening at the top of the rectangular box body into two parts. The liquid outlet pipe, the liquid inlet pipe and the liquid exchange pump are installed on the rectangular box cover. Both ends of the serpentine pipe are fixedly penetrated through the rectangular box cover and respectively penetrate out of the low-temperature chamber and the high-temperature chamber from both ends of the rectangular box cover.

[0007] A further setting of the present invention is that: a square chamber one is arranged inside the rectangular box cover. The serpentine pipe is repeatedly and fixedly inserted through the rectangular box cover, and the bent part at the top is located in the square chamber one of the rectangular box cover, and the bent parts at the bottom are divided into two groups and are respectively located in the low-temperature chamber and the high-temperature chamber.

[0008] A further setting of the present invention is that a square block is fixedly arranged in the square chamber one of the rectangular box cover. Two input flow channels and one output flow channel are arranged inside the square block, and the two input flow channels and the one output flow channel are interconnected inside the square block. The two input flow channels are parallel to each other, and a control chamber is arranged in the middle of the two input flow channels of the square block. A rotating shaft one is rotatably arranged inside the control chamber. A rotating assembly one for controlling the rotation of the rotating shaft one is arranged on the square block. The two ends of the rotating shaft one penetrate out of the control chamber and are respectively rotatably inserted into the two input flow channels. The part of the rotating shaft one extending into the input flow channel is fixedly connected with a circular disc. When the circular disc is coaxial with the pipe wall of the input flow channel, the liquid flow in the input flow channel can be cut off. The circular discs in the two input flow channels are perpendicular to each other and respectively cut off and release the liquid flow in the two input flow channels. A communicating pipe is arranged between the input end of the liquid changing pump and the output flow channel of the square block. The output flow channel is in a T shape, and the two ends of the output flow channel are respectively connected with the two input flow channels, and the remaining end is connected with the communicating pipe. One end of the liquid changing out pipe is communicated with one of the input flow channels on the square block. The other input flow channel on the square block is communicated with an infusion pipe. One end of the infusion pipe fixedly penetrates out of the square chamber one from one end of the rectangular box cover and is connected with the conveying hose of the external coolant filling container. The liquid changing pump is fixedly installed on the top of the rectangular box cover. One end of the communicating pipe is fixedly connected to the input end of the liquid changing pump, and the other end fixedly penetrates into the square chamber one and is connected with the output flow channel. One end of the liquid changing in pipe is connected to the output end of the liquid changing pump, and the other end fixedly passes through the rectangular box cover and extends into the high-temperature chamber. One end of the liquid changing out pipe is connected to the output flow channel, and the other end fixedly penetrates out of the square chamber one and extends into the low-temperature chamber.

[0009] A further setting of the present invention is that the rotating assembly one includes a worm gear fixed on the rotating shaft one, a worm rotatably arranged in the control chamber and meshing with the worm gear, and a motor one for driving the rotation of the worm. The worm gear and the worm are meshed and driven inside the control chamber. The motor one is fixed on the top of the rectangular box cover. The output end of the motor one continuously rotates and penetrates into the square chamber one and the control chamber, and is fixedly connected to the top end of the worm.

[0010] A further setting of the present invention is that the liquid changing channel includes a circular chamber located at the center position of the inner bottom of the rectangular box body, a communicating port one for communicating the circular chamber and the low-temperature chamber, and a communicating port two for communicating the circular chamber and the high-temperature chamber. The communicating port one and the communicating port two are located on both sides of the circular chamber. A pair of upper and lower parallel upper discs and lower discs are rotatably arranged inside the circular chamber. The outer contour surfaces of the upper disc and the lower disc are respectively in close contact with the inner contour surface of the circular chamber. The upper disc is located above the communicating port one and the communicating port two, and the lower disc is located below the communicating port one and the communicating port two. The rectangular box body is provided with a rotating assembly two for controlling the rotation of the lower disc. A pair of symmetrically arranged arched filter plates are fixedly connected between the upper disk and the lower disk, and the convex surfaces of the two arched filter plates are close to the center of the upper disk or the lower disk. The arched filter plates are evenly provided with filter holes, and both ends are flush with the outer contour surfaces of the upper disk or the lower disk. A filter residue hopper is fixedly arranged at the bottom of the rectangular box body, and a pair of discharge ports communicating the hopper and the circular chamber are opened at the bottom of the rectangular box body. A pair of notches are opened on the lower disk, and the two notches are respectively located on one side of the concave surfaces of the two arched filter plates. When the concave surfaces of the two arched filter plates face the communication port one and the communication port two respectively, the two notches on the lower disk and the two discharge ports are staggered from each other. When the gaps between the convex surfaces of the two arched filter plates face the communication port one and the communication port two, the two notches on the lower disk and the two discharge ports are aligned and communicated with each other.

[0011] A further setting of the present invention is that a drain pipe is communicated between the lower discharge port of the filter residue hopper and an external coolant waste water tank, and a ball valve is connected between the filter residue hopper and the drain pipe; the bottoms of the communication port one and the communication port two are flush with the inner bottom of the rectangular box body.

[0012] A further setting of the present invention is that a circular boss is fixedly arranged at the bottom of the rectangular box body, and the circular boss is screwed to the top of the filter residue hopper. The two discharge ports penetrate through the circular boss, and the two discharge ports are vertically located on both sides of the axis of the circular boss.

[0013] A further setting of the present invention is that the rotation assembly two includes a square chamber two opened inside the circular boss and located between the two discharge ports, a rectangular frame sliding inside the square chamber two, a rotation shaft two vertically rotatably arranged inside the square chamber two and located in the middle of the rectangular frame, a gear fixed on the rotation shaft two and located inside the square chamber two, a row of teeth fixed on the inner wall of the rectangular frame and meshing with the gear, a lead screw horizontally rotatably arranged inside the square chamber two and rotatably passing through the rectangular frame, a nut fixed on the inner wall of the rectangular frame and meshing with the lead screw, and a motor two for driving the lead screw to rotate. The top of the rotation shaft two rotatably penetrates into the circular chamber, and is fixedly connected to the center of the bottom of the lower disk. A square groove for accommodating and fixing the motor two is opened on the outer wall of the motor two, and the output end of the motor two rotatably penetrates into the square chamber two from the bottom of the square groove to connect one end of the lead screw.

[0014] The beneficial effects of the present invention are: By adopting the above cooling mechanism, when it is necessary to cool the high-pressure pump parts in the mold, the external coolant circulation system will reduce the temperature of the serpentine pipe by continuously delivering coolant to the serpentine pipe in one direction, and then the coolant inside the cooling box will reduce its own temperature under the change of the temperature of the serpentine pipe wall, and absorb the heat on the punch through the cooling box. At the same time, the liquid exchange pump uses the exchange pipe, the exchange pipe and the liquid exchange channel to continuously exchange the coolant in the low-temperature chamber of the cooling box with the coolant in the high-temperature chamber, so that the coolant near the inlet of the serpentine pipe in the cooling box (the serpentine pipe has the best cooling effect, and the coolant temperature in this area of the cooling box is relatively low) and the coolant near the outlet of the serpentine pipe (the serpentine pipe has a poor cooling effect, and the coolant temperature in this area of the cooling box is relatively high) circulate alternately in the cooling box and blend with each other while flowing, so as to evenly cool the cooling box and different positions of the punch at a stable and consistent temperature, thereby effectively ensuring the quality of the high-pressure pump parts and extending the service life of the mold to a certain extent.

[0015] By adopting the conveying structures such as the internal flow channel, connecting pipe and conveying hose of the above-mentioned square block, as well as the flow channel opening and closing structure of the rotating shaft, circular disc plate and rotating component one, when it is necessary to add or supplement coolant to the cooling box, the rotating component one will drive the rotating shaft one to rotate, so that the two circular discs on the rotating shaft one will flip relative to the two input flow channels inside the square block respectively. Since the circular disc plates in the two input flow channels are perpendicular to each other and cut off and release the flow of liquid in the two input flow channels respectively, the input flow channel connected to the exchange pipe will be closed by a flipped circular disc plate, and the input flow channel connected to the infusion pipe will be opened under the flipping of the other circular disc plate. Finally, the liquid exchange pump can fill the coolant in the external coolant filling container through the infusion pipe, and pump it into the cooling box, thereby realizing the automatic filling effect of the cooling box coolant while giving full play to the conveying function of the liquid exchange pump in the present device.

[0016] By adopting the above-mentioned filtration system of the upper disc, lower disc, arched filter plate and rotating assembly II, when it is necessary to filter the coolant in the cooling box, the rotating assembly II will control the rotation of the lower disc, so that the two arched filter plates connected between the lower disc and the upper disc are respectively blocked at the connection between the first communication port and the circular chamber and the connection between the second communication port and the circular chamber. Furthermore, in this way, the coolant passing through the liquid change channel is filtered, and the solid filter residues in the high-temperature chamber are blocked from entering and flowing back into the low-temperature chamber; when it is necessary to clean the solid filter residues in the high-temperature chamber, the rotating assembly II will control the rotation of the lower disc again, so that the gap between the convex surfaces of the two arched filter plates faces the first communication port and the second communication port. At the same time, the two notches on the lower disc are aligned and connected with the two rows of outlets at the bottom of the cooling box, so that part of the coolant passing through in the liquid change channel passes through the gap between the convex surfaces of the two arched filter plates, the filter holes of the arched filter plates, the notches on the lower disc, and the discharge ports at the bottom of the cooling box and flows into the filter residue hopper. Since most of the solid filter residues were previously accumulated on the concave surfaces of the arched filter plates and in the notches of the lower disc, during the process of the coolant flowing into the filter residue hopper, the solid filter residues on the concave surfaces of the arched filter plates and in the notches of the lower disc will be brought into the filter residue hopper together, achieving the effect of automatic cleaning of the filter residues. If the ball valve connected between the filter residue hopper and the drain pipe is opened at this time, the coolant in the cooling box and the filter residues in the filter residue hopper can be quickly discharged, thus cooperating with the above-mentioned coolant filling structure to achieve the effect of automatically replacing the coolant inside the cooling box. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, 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 invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0018] Figure 1 is the three-dimensional structure schematic diagram of this embodiment; Figure 2 is the connection relationship schematic diagram of the high-pressure pump part mold, cooling box, and sliding template of this embodiment; Figure 3 is the sectional view of the cooling mechanism structure of this embodiment Figure 1 ; Figure 4 is the sectional view of the cooling mechanism structure of this embodiment Figure 2 ; Figure 5 is the sectional view of the cooling structure of this embodiment Figure 3 ; Figure 6 is the sectional view of the square block structure of this embodiment; Figure 7 is Figure 5Enlarged view of part A In the figure, 1 is the machine base; 2 is the fixed template; 3 is the sliding template; 4 is the hydraulic driving device; 5 is the cooling mechanism; 51 is the cooling box body; 511 is the rectangular box body; 511a is the partition; 511b is the circular boss; 511c is the discharge port; 511d is the square groove; 512 is the rectangular box cover; 512a is the first square chamber; 52 is the low-temperature chamber; 53 is the high-temperature chamber; 54 is the circular channel; 55 is the liquid-changing channel; 551 is the circular chamber; 552 is the first communication port; 553 is the second communication port; 56 is the serpentine pipe; 57 is the liquid-out pipe; 58 is the liquid-in pipe; 59 is the liquid-changing pump; 6 is the injection system; 7 is the high-pressure pump part mold; 8 is the square block; 81 is the input flow channel; 82 is the output flow channel; 83 is the control room; 84 is the first rotating shaft; 841 is the circular disc; 85 is the first rotating assembly; 851 is the worm gear; 852 is the worm; 853 is the first motor; 86 is the connecting pipe; 87 is the infusion pipe; 9 is the upper disc; 10 is the lower disc; 101 is the notch; 102 is the second rotating assembly; 102a is the second square chamber; 102b is the rectangular frame; 102c is the second rotating shaft; 102d is the gear; 102e is the ratchet; 102f is the lead screw; 102g is the nut; 102h is the second motor; 11 is the arched filter plate; 111 is the filter hole; 12 is the filter residue hopper; 121 is the drain pipe; 122 is the ball valve. Detailed implementation mode

[0019] The technical solution of the present invention will be clearly and completely described below in conjunction with specific embodiments. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts fall within the scope of protection of the present invention.

[0020] Embodiment: A die-casting forming device for processing high-pressure pump parts, as Figures 1 - 7 shown, includes a machine base 1, a die-closing system arranged on the machine base 1 and used for opening, closing and locking the high-pressure pump part mold 7, and an injection system 6 arranged on the machine base 1 and used for injecting molten metal into the cavity of the high-pressure pump part mold 7. The die-closing system includes a fixed template 2 fixedly arranged on the machine base 1 and fixedly supporting the punch of the high-pressure pump part mold 7, a sliding template 3 slidably arranged on the machine base 1 and fixedly supporting the die of the high-pressure pump part mold 7, a hydraulic driving device 4 for driving the sliding template 3 to approach or move away from the fixed template 2 in parallel, and a cooling mechanism 5 arranged on the fixed template 2 and used for cooling the die of the high-pressure pump part mold 7; The cooling mechanism 5 includes a cooling box body 51 fixed to one side of the fixed template 2 facing the sliding template 3, a low-temperature chamber 52 and a high-temperature chamber 53 arranged inside the cooling box body 51 and storing coolant, a serpentine pipe 56 fixed inside the cooling box body 51 and passing through the low-temperature chamber 52 and the high-temperature chamber 53, a liquid exchange channel 55 arranged inside the cooling box body 51 and communicating the low-temperature chamber 52 and the high-temperature chamber 53, a liquid outlet pipe 57 arranged at the top of the cooling box body 51 and having one end communicating with the low-temperature chamber 52, a liquid inlet pipe 58 arranged at the top of the cooling box body 51 and having one end communicating with the high-temperature chamber 53, and a liquid exchange pump 59 installed at the top of the cooling box body 51 and respectively communicating with the other ends of the liquid outlet pipe 57 and the liquid inlet pipe 58; Both ends of the serpentine pipe 56 are respectively fixed and penetrate out of the cooling box body 51 from the low-temperature chamber 52 and the high-temperature chamber 53, and are respectively fixedly connected to the input hose and the output hose of the external coolant circulation system; the punch of the high-pressure pump part mold 7 is fixed to one side of the cooling box body 51 facing the sliding template 3. A circular channel 54 for the output end of the injection system 6 to pass through is arranged in the middle of the cooling box body 51. The circular channel 54 is located between the low-temperature chamber 52 and the high-temperature chamber 53, and a partition 511a for separating the three is fixedly arranged inside the cooling chamber. The liquid exchange channel 55 penetrates through the partition 511a between the low-temperature chamber 52 and the high-temperature chamber 53 and is located below the circular channel 54.

[0021] By adopting the above cooling mechanism 5, when it is necessary to cool the high-pressure pump parts in the mold, the external coolant circulation system will continuously supply coolant to the serpentine pipe 56 in a one-way manner to reduce the temperature of the serpentine pipe 56. Then, the coolant inside the cooling box body 51 will reduce its own temperature under the change of the temperature of the serpentine pipe 56 wall and absorb the heat on the punch through the cooling box body 51. At the same time, the liquid exchange pump 59 uses the liquid outlet pipe 57, the liquid inlet pipe 58 and the liquid exchange channel 55 to continuously exchange the coolant in the low-temperature chamber 52 and the high-temperature chamber 53 of the cooling box body 51. As a result, the coolant near the inlet of the serpentine pipe 56 in the cooling box body 51 (the cooling effect of the serpentine pipe 56 is the best, and the coolant temperature in this area of the cooling box body 51 is relatively low) and the coolant near the outlet of the serpentine pipe 56 (the cooling effect of the serpentine pipe 56 is relatively poor, and the coolant temperature in this area of the cooling box body 51 is relatively high) circulate and alternate in the cooling box body 51 and blend with each other while flowing, so as to evenly cool different positions of the cooling box body 51 and the punch at a stable and consistent temperature, thereby effectively ensuring the quality of the high-pressure pump parts and extending the service life of the mold to a certain extent.

[0022] Such as Figures 3 - 5As shown in the figure, the cooling box body 51 includes a rectangular box body 511 with an upward opening, a rectangular box cover 512 that is screwed to the top of the rectangular box body 511 and closes the opening of the rectangular box. The low-temperature chamber 52 and the high-temperature chamber 53 are respectively communicated with the opening at the top of the rectangular box body 511. The circular channel 54 penetrates through the front and rear sides of the rectangular box body 511. The partition 511a is arranged in the middle of the interior of the rectangular box body 511 and divides the opening at the top of the rectangular box body 511 into two parts. The liquid-out pipe 57, the liquid-in pipe 58 and the liquid-changing pump 59 are installed on the rectangular box cover 512. The two ends of the serpentine pipe 56 are fixedly passed through the rectangular box cover 512 and respectively penetrate out of the low-temperature chamber 52 and the high-temperature chamber 53 from both ends of the rectangular box cover 512. By adopting the above detachable cooling box body 51 structure, it is convenient for the staff to quickly clean and maintain the interior of the cooling box body 51 and the outer wall of the serpentine pipe.

[0023] As Figures 3 - 5 shown in the figure, a square chamber one 512a is arranged inside the rectangular box cover 512. The serpentine pipe 56 is repeatedly and fixedly inserted through the rectangular box cover 512, and the bent part at the top is located in the square chamber one 512a of the rectangular box cover 512, and the bent parts at the bottom are divided into two groups and are respectively located in the low-temperature chamber 52 and the high-temperature chamber 53. By adopting the above connection structure of the rectangular box cover 512 and the serpentine pipe 56, not only can the serpentine pipe 56 be stably fixed, but also the serpentine pipe 56 can perfectly cross the low-temperature chamber 52 and the high-temperature chamber 53.

[0024] As Figures 3 - 6 shown in the figure, a square block 8 is fixedly arranged in the square chamber one 512a of the rectangular box cover 512. Two input flow channels 81 and one output flow channel 82 are arranged inside the square block 8, and the two input flow channels 81 and the one output flow channel 82 are communicated with each other inside the square block 8. The two input flow channels 81 are parallel to each other, and a control chamber 83 is arranged in the middle of the two input flow channels 81 of the square block 8. A rotating shaft one 84 is rotatably arranged inside the control chamber 83. A rotating assembly one 85 for controlling the rotation of the rotating shaft one 84 is arranged on the square block 8. The two ends of the rotating shaft one 84 penetrate out of the control chamber 83 and respectively rotatably penetrate into the two input flow channels 81. The part of the rotating shaft one 84 extending into the input flow channel 81 is fixedly connected with a circular disc 841. When the circular disc 841 is coaxial with the pipe wall of the input flow channel 81, the liquid flow in the input flow channel 81 can be cut off. The circular discs 841 in the two input flow channels 81 are perpendicular to each other and respectively cut off and release the liquid flow in the two input flow channels 81; A communicating pipe 86 is provided between the input end of the liquid changing pump 59 and the output flow channel 82 of the square block 8. The output flow channel 82 is in a T shape, and the two ends of the output flow channel 82 are respectively communicated with the two input flow channels 81, and the remaining end is communicated with the communicating pipe 86. One end of the liquid discharging pipe 57 is communicated with an input flow channel 81 on the square block 8, and the other input flow channel 81 on the square block 8 is communicated with an infusion pipe 87. One end of the infusion pipe 87 fixedly penetrates through one end of the rectangular box cover 512 and exits the first square chamber 512a, and is connected to the conveying hose of the external coolant filling container. The liquid changing pump 59 is fixedly installed on the top of the rectangular box cover 512. One end of the communicating pipe 86 is fixedly connected to the input end of the liquid changing pump 59, and the other end fixedly penetrates into the first square chamber 512a and is connected to the output flow channel 82. One end of the liquid inlet pipe 58 is connected to the output end of the liquid changing pump 59, and the other end fixedly passes through the rectangular box cover 512 and extends into the high-temperature chamber 53. One end of the liquid discharging pipe 57 is connected to the output flow channel 82, and the other end fixedly exits the first square chamber 512a and extends into the low-temperature chamber 52.

[0025] By adopting the above-mentioned conveying structures such as the internal flow channels of the square block 8, the communicating pipe 86 and the conveying hose, as well as the flow channel opening and closing structure of the rotating shaft, the circular disc 841 and the first rotating assembly 85, when it is necessary to add or supplement the coolant to the cooling box body 51, the first rotating assembly 85 will drive the first rotating shaft 84 to rotate, so that the two circular discs on the first rotating shaft 84 respectively flip relative to the two input flow channels 81 inside the square block 8. Since the circular discs 841 in the two input flow channels 81 are perpendicular to each other and respectively cut off and allow the liquid to flow in the two input flow channels 81, the input flow channel 81 communicating with the liquid discharging pipe 57 will be closed by a flipped circular disc 841, while the input flow channel 81 communicating with the infusion pipe 87 will be opened under the flipping of the other circular disc 841. Finally, the liquid changing pump 59 can pump the coolant in the external coolant filling container into the cooling box body 51 through the infusion pipe 87, so as to realize the automatic filling effect of the coolant in the cooling box body 51 while fully exerting the conveying function of the liquid changing pump 59 in this device.

[0026] Such as Figure 5 , Figure 6As shown in the figure, the first rotating assembly 85 includes a worm wheel 851 fixed on the first rotating shaft 84, a worm 852 rotatably arranged in the control chamber 83 and meshing with the worm wheel 851, and a first motor 853 for driving the worm 852 to rotate. The worm wheel 851 and the worm 852 are located in the control chamber 83 for meshing transmission. The first motor 853 is fixed on the top of the rectangular box cover 512. The output end of the first motor 853 continuously rotates through the first square chamber 512a and into the control chamber 83, and is fixedly connected to the top end of the worm 852. By adopting the above first rotating assembly 85, not only can the first rotating shaft 84 be stably driven to rotate, but also the transmission structure of the worm wheel 851 and the worm 852 has a self-locking function, which can lock the rotation of the first rotating shaft 84 before and after the first rotating assembly 85 works, so as to ensure that the two circular discs on the first rotating shaft 84 can stably cut off or release the liquid flow in the input flow channel 81.

[0027] As Figures 3 - 5 shown, the liquid changing channel 55 includes a circular chamber 551 located at the center of the inner bottom of the rectangular box body 511, a first communication port 552 connecting the circular chamber 551 and the low-temperature chamber 52, and a second communication port 553 connecting the circular chamber 551 and the high-temperature chamber 53. The first communication port 552 and the second communication port 553 are located on both sides of the circular chamber 551; a pair of upper and lower parallel upper discs 9 and lower discs 10 are rotatably arranged inside the circular chamber 551, and the outer contour surfaces of the upper disc 9 and the lower disc 10 are respectively in close contact with the inner contour surface of the circular chamber 551. The upper disc 9 is located above the first communication port 552 and the second communication port 553, and the lower disc 10 is located below the first communication port 552 and the second communication port 553. The rectangular box body 511 is provided with a second rotating assembly 102 for controlling the rotation of the lower disc 10; A pair of symmetrically arranged arched filter plates 11 are fixedly connected between the upper disc 9 and the lower disc 10, and the convex surfaces of the two arched filter plates 11 are close to the center of the upper disc 9 or the lower disc 10. Filter holes 111 are evenly arranged on the arched filter plates 11, and both ends are flush with the outer contour surface of the upper disc 9 or the lower disc 10. A filter residue hopper 12 is fixedly arranged at the bottom of the rectangular box body 511, and a pair of discharge ports 511c connecting the hopper and the circular chamber 551 are opened at the bottom of the rectangular box body 511. A pair of notches 101 are opened on the lower disc 10, and the two notches 101 are respectively located on one side of the concave surface of the two arched filter plates 11. When the concave surfaces of the two arched filter plates 11 are respectively facing the first communication port 552 and the second communication port 553, the two notches 101 on the lower disc 10 and the two discharge ports 511c are staggered from each other. When the gaps between the convex surfaces of the two arched filter plates 11 are facing the first communication port 552 and the second communication port 553, the two notches 101 on the lower disc 10 and the two discharge ports 511c are aligned and communicated with each other.

[0028] By adopting the filtration system of the upper disc 9, the lower disc 10, the arched filter plate 11 and the second rotating assembly 102, when it is necessary to filter the coolant in the cooling box body 51, the second rotating assembly 102 will control the rotation of the lower disc 10, so that the two arched filter plates 11 connected between the lower disc 10 and the upper disc 9 are respectively blocked at the connection between the first communication port 552 and the circular chamber 551, and the connection between the second communication port 553 and the circular chamber 551. Furthermore, in this way, the coolant passing through the liquid change channel 55 is filtered, and the solid filter residue in the high-temperature chamber 53 is blocked from flowing back into the low-temperature chamber 52; when it is necessary to clean the solid filter residue in the high-temperature chamber 53, the second rotating assembly 102 will control the rotation of the lower disc 10 again, so that the gap between the outer convex surfaces of the two arched filter plates 11 is directly opposite to the first communication port 552 and the second communication port 553. At the same time, the two notches 101 on the lower disc 10 and the two rows of outlets 511c at the bottom of the cooling box body 51 are aligned and communicated with each other, so that part of the coolant passing through the liquid change channel 55 passes through the gap between the outer convex surfaces of the two arched filter plates 11, the filter holes 111 of the arched filter plate 11, the notches 101 on the lower disc 10, and the discharge ports 511c at the bottom of the cooling box body 51 and flows into the filter residue hopper 12. Since most of the solid filter residue was previously accumulated on the concave surface of the arched filter plate 11 and in the notches 101 of the lower disc 10, during the process of the coolant flowing into the filter residue hopper 12, the solid filter residue on the concave surface of the arched filter plate 11 and in the notches 101 of the lower disc 10 will be carried into the filter residue hopper 12 together, achieving the effect of automatic cleaning of the filter residue.

[0029] As Figures 3 - 5 shown, a drain pipe 121 is connected between the lower discharge port of the filter residue hopper 12 and the external coolant waste water tank, and the filter residue hopper 12 and the drain pipe 121 are connected by a ball valve 122. The bottoms of the first communication port 552 and the second communication port 553 are flush with the inner bottom of the rectangular box body 511. By adopting the above-mentioned drain pipe 121 and ball valve 122, if the ball valve 122 connected between the filter residue hopper 12 and the drain pipe 121 is opened during the above-mentioned filter residue removal process, the coolant in the cooling box body 51 and the filter residue in the filter residue hopper 12 can be quickly discharged, so as to cooperate with the above-mentioned coolant filling structure (the internal flow channel of the square block 8, the connecting pipe 86, the delivery hose, the rotating shaft, the circular disc 841 and the first rotating assembly 85) to achieve the effect of automatically replacing the coolant inside the cooling box body 51.

[0030] As Figures 3 - 5As shown, a circular boss 511b is fixedly arranged at the bottom of the rectangular box body 511, and the circular boss 511b is connected to the top of the filter residue hopper 12 by screws. Two rows of outlets 511c penetrate through the circular boss 511b, and the two rows of outlets 511c are vertically located on both sides of the axis of the circular boss 511b. Through the above-mentioned circular boss 511b, not only can the filter residue hopper 12 be conveniently installed and fixed, but also the internal square chamber two 102a can provide space for the installation and movement of the components in the following rotating assembly two 102.

[0031] As Figures 3 - 5 , Figure 7 As shown, the rotating assembly two 102 includes a square chamber two 102a opened inside the circular boss 511b and located between two rows of outlets 511c, a rectangular frame 102b sliding inside the square chamber two 102a, a rotating shaft two 102c vertically rotatably arranged inside the square chamber two 102a and located in the middle of the rectangular frame, a gear 102d fixed on the rotating shaft two 102c and located inside the square chamber two 102a, a row of teeth 102e fixed on the inner wall of the rectangular frame and meshing with the gear 102d, a lead screw 102f horizontally rotatably arranged inside the square chamber two 102a and rotating through the rectangular frame 102b, a nut 102g fixed on the inner wall of the rectangular frame 102b and meshing with the lead screw 102f, and a motor two 102h for driving the rotation of the lead screw 102f. The top end of the rotating shaft two 102c rotatably penetrates into the circular chamber 551 and is fixedly connected to the center of the bottom of the lower disc 10. A square groove 511d for accommodating and fixing the motor two 102h is opened on the outer wall of the motor two 102h, and the output end of the motor two 102h rotatably penetrates into the square chamber two 102a from the bottom of the square groove 511d and is connected to one end of the lead screw 102f.

[0032] By adopting the above-mentioned rotating assembly two 102, when the lower disc 10 needs to rotate, the motor two 102h will drive the lead screw 102f to rotate. Then, under the rotation of the lead screw 102f, the nut 102g drives the rectangular frame 102b to slide inside the square chamber two 102a. After that, a row of teeth 102e on the inner wall of the rectangular frame 102b will follow the movement of the rectangular frame 102b and mesh with the driving gear 102d to rotate during the movement. Finally, the gear 102d drives the lower disc 10 to rotate relative to the circular chamber 551 through the rotating shaft two 102c, so as to cooperate with the arched filter plate 11 and the upper disc 9 to realize the function switching of filtering the coolant, discharging the filter residue and the coolant.

Claims

1. A die-casting forming device for machining parts of a high-pressure pump, comprising a machine base (1), a die clamping system arranged on the machine base (1) and used for opening, closing and locking a high-pressure pump part mold (7), and a shot system (6) arranged on the machine base (1) and used for injecting molten metal into the cavity of the high-pressure pump part mold (7), characterized in that, The mold clamping system includes a fixed template (2) fixedly arranged on the machine base (1) and fixedly supporting the punch of the high-pressure pump part mold (7), a sliding template (3) slidably arranged on the machine base (1) and fixedly supporting the die of the high-pressure pump part mold (7), a hydraulic driving device (4) for driving the sliding template (3) to approach or move away from the fixed template (2) in parallel, and a cooling mechanism (5) arranged on the fixed template (2) for cooling the die of the high-pressure pump part mold (7). The cooling mechanism (5) includes a cooling box body (51) fixed on the side of the fixed template (2) facing the sliding template (3), a low-temperature chamber (52) and a high-temperature chamber (53) arranged inside the cooling box body (51) and storing coolant, a serpentine pipe (56) fixed inside the cooling box body (51) and passing through the low-temperature chamber (52) and the high-temperature chamber (53), a liquid exchange channel (55) arranged inside the cooling box body (51) and communicating the low-temperature chamber (52) and the high-temperature chamber (53), a liquid outlet pipe (57) arranged on the top of the cooling box body (51) and having one end communicating with the low-temperature chamber (52), a liquid inlet pipe (58) arranged on the top of the cooling box body (51) and having one end communicating with the high-temperature chamber (53), and a liquid exchange pump (59) installed on the top of the cooling box body (51) and respectively communicating with the other ends of the liquid outlet pipe (57) and the liquid inlet pipe (58). Both ends of the serpentine pipe (56) respectively penetrate out of the cooling box body (51) from the low-temperature chamber (52) and the high-temperature chamber (53) and are respectively fixedly connected to the input hose and the output hose of the external coolant circulation system; the punch of the high-pressure pump part mold (7) is fixed on the side of the cooling box body (51) facing the sliding template (3), a circular channel (54) for the output end of the injection system (6) to pass through is arranged in the middle of the cooling box body (51), the circular channel (54) is located between the low-temperature chamber (52) and the high-temperature chamber (53), and a partition (511a) for separating the three is fixedly arranged inside the cooling chamber, the liquid exchange channel (55) penetrates through the partition (511a) between the low-temperature chamber (52) and the high-temperature chamber (53) and is located below the circular channel (54).

2. The die-casting forming device for processing high-pressure pump parts according to claim 1, characterized in that: The cooling box body (51) includes a rectangular box body (511) with an upward opening, and a rectangular box cover (512) screwed to the top of the rectangular box body (511) and closing the opening of the rectangular box. The low-temperature chamber (52) and the high-temperature chamber (53) are respectively communicated with the opening at the top of the rectangular box body (511). The circular channel (54) penetrates through the front and back sides of the rectangular box body (511). The partition (511a) is arranged in the middle of the rectangular box body (511) and divides the opening at the top of the rectangular box body (511) into two parts. The liquid outlet pipe (57), the liquid inlet pipe (58) and the liquid exchange pump (59) are installed on the rectangular box cover (512). Both ends of the serpentine pipe (56) are fixedly passed through the rectangular box cover (512) and respectively penetrate out of the low-temperature chamber (52) and the high-temperature chamber (53) from both ends of the rectangular box cover (512).

3. A die-casting forming device for processing high-pressure pump parts according to claim 2, characterized in that: The interior of the rectangular box cover (512) is provided with a first square chamber (512a). The serpentine pipe (56) is repeatedly and fixedly inserted through the rectangular box cover (512), and the bent part at the top is located in the first square chamber (512a) of the rectangular box cover (512), and the bent parts at the bottom are divided into two groups and are respectively located in the low-temperature chamber (52) and the high-temperature chamber (53).

4. A die-casting forming device for machining parts of a high-pressure pump according to claim 3, characterized in that: A square block (8) is fixedly arranged in the first square chamber (512a) of the rectangular box cover (512). Two input channels (81) and an output channel (82) are formed inside the square block (8), and the two input channels (81) and the output channel (82) are interconnected inside the square block (8). The two input channels (81) are parallel to each other, and a control chamber (83) is formed in the square block (8) between the two input channels (81). A first rotating shaft (84) is rotatably arranged inside the control chamber (83). A first rotating assembly (85) for controlling the rotation of the first rotating shaft (84) is arranged on the square block (8). The two ends of the first rotating shaft (84) penetrate out of the control chamber (83) and are respectively rotatably inserted into the two input channels (81). A circular disc (841) is fixedly connected to the part of the first rotating shaft (84) extending into the input channel (81). When the circular disc (841) is coaxial with the inner wall of the input channel (81), the liquid flow in the input channel (81) can be cut off. The circular discs (841) in the two input channels (81) are perpendicular to each other and respectively cut off and allow the liquid flow in the two input channels (81). A connecting pipe (86) is arranged between the input end of the liquid changing pump (59) and the output channel (82) of the square block (8). The output channel (82) is in a T shape, and the two ends of the output channel (82) are respectively connected to the two input channels (81), and the remaining end is connected to the connecting pipe (86). One end of the liquid discharging pipe (57) is connected to one of the input channels (81) on the square block (8). The other input channel (81) on the square block (8) is connected to an infusion pipe (87). One end of the infusion pipe (87) fixedly penetrates out of the first square chamber (512a) from one end of the rectangular box cover (512) and is connected to a conveying hose of an external coolant filling container. The liquid changing pump (59) is fixedly installed on the top of the rectangular box cover (512). One end of the connecting pipe (86) is fixedly connected to the input end of the liquid changing pump (59), and the other end fixedly penetrates into the interior of the first square chamber (512a) and is connected to the output channel (82). One end of the liquid changing pipe (58) is connected to the output end of the liquid changing pump (59), and the other end fixedly passes through the rectangular box cover (512) and extends into the high-temperature chamber (53). One end of the liquid discharging pipe (57) is connected to the output channel (82), and the other end fixedly penetrates out of the interior of the first square chamber (512a) and extends into the low-temperature chamber (52).

5. A die-casting forming device for machining high-pressure pump components according to claim 4, characterized in that: The first rotating component (85) includes a worm gear (851) fixed on the first rotating shaft (84), a worm (852) rotatably arranged in the control chamber (83) and meshing with the worm gear (851), and a first motor (853) for driving the worm (852) to rotate. The worm gear (851) and the worm (852) are in meshing transmission in the control chamber (83). The first motor (853) is fixed on the top of the rectangular box cover (512). The output end of the first motor (853) continuously rotates through the first square chamber (512a) and into the control chamber (83), and is fixedly connected to the top end of the worm (852).

6. A die-casting forming device for machining parts of a high-pressure pump according to claim 5, characterized in that: The liquid changing channel (55) includes a circular chamber (551) located at the center of the inner bottom of the rectangular box body (511), a first communication port (552) connecting the circular chamber (551) and the low-temperature chamber (52), and a second communication port (553) connecting the circular chamber (551) and the high-temperature chamber (53). The first communication port (552) and the second communication port (553) are located on both sides of the circular chamber (551). A pair of upper and lower parallel upper discs (9) and lower discs (10) are rotatably arranged inside the circular chamber (551). The outer contour surfaces of the upper disc (9) and the lower disc (10) are in close contact with the inner contour surface of the circular chamber (551) respectively. The upper disc (9) is located above the first communication port (552) and the second communication port (553), and the lower disc (10) is located below the first communication port (552) and the second communication port. The rectangular box body (511) is provided with a second rotating component (102) for controlling the rotation of the lower disc (10). A pair of symmetrically arranged arched filter plates (11) are fixedly connected between the upper disc (9) and the lower disc (10). The convex surfaces of the two arched filter plates (11) are close to the center of the upper disc (9) or the lower disc (10). Filter holes (111) are evenly arranged on the arched filter plates (11), and both ends are flush with the outer contour surfaces of the upper disc (9) or the lower disc (10). A filter residue hopper (12) is fixedly arranged at the bottom of the rectangular box body (511), and a pair of discharge ports (511c) connecting the hopper and the circular chamber (551) are opened at the bottom of the rectangular box body (511). A pair of notches (101) are opened on the lower disc (10), and the two notches (101) are respectively located on one side of the concave surfaces of the two arched filter plates (11). When the concave surfaces of the two arched filter plates (11) are respectively facing the first communication port (552) and the second communication port (553), the two notches (101) on the lower disc (10) and the two discharge ports (511c) are staggered from each other. When the gaps between the convex surfaces of the two arched filter plates (11) are facing the first communication port (552) and the second communication port (553), the two notches (101) on the lower disc (10) and the two discharge ports (511c) are aligned and communicated with each other.

7. A die-casting forming device for processing high-pressure pump parts according to claim 6, characterized in that: A drain pipe (121) is connected between the lower discharge port of the filter residue hopper (12) and the external coolant waste water tank, and the filter residue hopper (12) and the drain pipe (121) are connected by a ball valve (122); the bottoms of the first communication port (552) and the second communication port (553) are flush with the inner bottom of the rectangular box body (511).

8. A die-casting forming device for machining high-pressure pump parts according to claim 7, characterized in that: A circular boss (511b) is fixedly arranged at the bottom of the rectangular box body (511), and the circular boss (511b) is connected to the top of the filter residue hopper (12) by screws. The two discharge ports (511c) penetrate through the circular boss (511b), and the two discharge ports (511c) are vertically located on both sides of the axis of the circular boss (511b).

9. A die-casting forming device for processing high-pressure pump parts according to claim 8, characterized in that: The second rotating assembly (102) includes a square chamber two (102a) opened inside the circular boss (511b) and located between the two discharge ports (511c), a rectangular frame (102b) sliding inside the square chamber two (102a), a second rotating shaft (102c) vertically rotatably arranged inside the square chamber two (102a) and located in the middle of the rectangular frame, a gear (102d) fixed on the second rotating shaft (102c) and located inside the square chamber two (102a), a row of teeth (102e) fixed on the inner wall of the rectangular frame and meshing with the gear (102d), a lead screw (102f) horizontally rotatably arranged inside the square chamber two (102a) and rotating through the rectangular frame (102b), a nut (102g) fixed on the inner wall of the rectangular frame (102b) and meshing with the lead screw (102f), and a second motor (102h) for driving the lead screw (102f) to rotate. The top end of the second rotating shaft (102c) rotatably penetrates into the circular chamber (551), and is fixedly connected to the center of the bottom of the lower disc (10). A square groove (511d) for accommodating and fixing the second motor (102h) is opened on the outer wall of the second motor (102h), and the output end of the second motor (102h) rotatably penetrates into the square chamber two (102a) from the bottom of the square groove (511d) to connect one end of the lead screw (102f).

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