A forging centrifugal pump body structure and its processing device

Abstract

The present application discloses a forged centrifugal pump body structure and its processing device, which relates to the technical field of pump production. It includes a housing, an end cover and an intermediate ring. The end cover and the intermediate ring are forged and formed. A liquid flow channel is arranged at the side end of the housing. A drain channel and a first communication hole which is inclined and communicated with the drain channel are opened on the end cover. A vertical second communication hole and an inclined third communication hole are opened on the intermediate ring. The second communication hole and the third communication hole are communicated with each other. The second communication hole is aligned with the liquid flow channel, and the third communication hole is aligned with the first communication hole. By using a split structure, the end cover and the intermediate ring are forged, and drilling is carried out inside, avoiding casting defects such as air holes, shrinkage holes, slag holes, cracks, sand holes, etc. caused by the casting process and unevenness of the inner wall, which can improve the strength and reliability of the material, as well as the qualified rate of part processing, ensure the flatness of the inner wall of the flow channel, improve the drainage efficiency on the one hand, and reduce energy consumption on the other hand.

Description

Technical Field

[0001] The present application relates to the technical field of water pump production, and in particular to a forged centrifugal pump body structure and its processing device. Background Art

[0002] A centrifugal pump works by using the rotation of an impeller to cause the water to undergo centrifugal motion. Before starting the water pump, the pump casing and the suction pipe must be filled with water, and then the motor is started, causing the pump shaft to drive the impeller and the water to rotate at a high speed. The water undergoes centrifugal motion and is thrown towards the outer edge of the impeller, flowing into the pressure water pipeline of the water pump through the flow channel of the volute pump casing.

[0003] The pump casing and pump cover of a submersible cryogenic pump are generally formed by casting aluminum alloy materials. During the casting process of the casting, the liquid flow channel is integrally cast. However, in the aluminum alloy casting process, casting defects such as pores, shrinkage cavities, slag holes, cracks, and sand holes are inevitably generated, affecting the qualified rate of the finished product. The internal liquid flow channel is not smooth enough, increasing the resistance of the liquid flow passing through, and is not conducive to improving the liquid discharge efficiency of the centrifugal pump. Summary of the Invention

[0004] In order to reduce the above-mentioned casting defects, reduce the unqualified rate of products, improve the flatness of the internal flow channel, and reduce the liquid flow resistance, the present application provides a forged centrifugal pump body structure and its processing device.

[0005] The forged centrifugal pump body structure and its processing device provided by the present application adopt the following technical solutions:

[0006] A forged centrifugal pump body structure includes a casing, an end cover, and an intermediate ring. The end cover and the intermediate ring are formed by forging. Both between the casing and the intermediate ring and between the intermediate ring and the end cover are connected by bolts. A liquid flow channel is provided at the side end of the casing. A liquid discharge channel and a first communication hole that is inclined and communicates with the liquid discharge channel are provided on the end cover. A vertical second communication hole and an inclined third communication hole are provided on the intermediate ring. The second communication hole and the third communication hole communicate with each other. The second communication hole is aligned with the liquid flow channel, and the third communication hole is aligned with the first communication hole.

[0007] By adopting the above technical solutions, the end cover and the intermediate ring are produced by forging process, the material strength of the parts is higher, there are no casting defects, and the qualified rate of the products is higher. Due to the use of a split structure, drilling of the second communication hole and the third communication hole can be realized on the intermediate ring, making the inner surface of the flow channel more flat and smooth, reducing the liquid flow resistance, and improving the liquid discharge efficiency of the centrifugal pump.

[0008] Preferably, sealing rings are provided at both the side end and the top of the intermediate ring to improve the sealing performance between the intermediate ring and the end cover.

[0009] By adopting the above technical solution, the sealing ring can improve the sealing performance between the middle ring and the end cover, thereby improving the product quality.

[0010] A processing device for a forged centrifugal pump body structure includes a machine table arranged on the ground. A moving groove is opened in the middle of the machine table surface. A movable seat that can move back and forth is arranged in the moving groove for placing the middle ring. The movable seat includes a moving platform, on which positioning holes and round holes are opened. A clamping mechanism for fixing the middle ring is arranged on the movable seat. A bottom drilling mechanism is arranged below the movable seat for opening a second communication hole in the middle ring. An elevating platform and an elevating mechanism for controlling the up and down movement of the elevating platform are arranged above the machine table. An installation plate is arranged below the elevating platform, and an inclined drill bit and a first driving motor for driving the inclined drill bit to rotate are installed on the installation plate.

[0011] By adopting the above technical solution, during use, the operator places the middle ring on the moving platform and fixes it through the clamping mechanism. Then the moving platform moves backward on the machine table. In the early stage of the movement, the bottom drilling mechanism drills the middle ring from below through the positioning hole to complete the drilling step of the second communication hole. After that, the bottom drilling mechanism withdraws from the second communication hole. In the later stage of the movement of the moving platform, the elevating mechanism drives the inclined drill bit to descend synchronously. During the movement of the middle ring, the drilling step of the third communication hole can be completed from the inner side of the middle ring. Then the moving platform moves in the reverse direction and resets, and the elevating mechanism drives the inclined drill bit to rise and reset, realizing the automatic drilling of the middle ring. The operation is simple and the drilling efficiency is relatively high.

[0012] Preferably, the movable seat further includes a sliding rod and a fixed lead screw fixed inside the machine table and located below the moving groove. Sliding sleeves and lead screw motors are respectively arranged on both sides of the moving platform. The sliding sleeves are slidably arranged on the sliding rod, and the lead screw motors are matched and installed with the fixed lead screw for driving the moving platform to move.

[0013] By adopting the above technical solution, the cooperation between the lead screw motor and the fixed lead screw can drive the moving platform to move back and forth along the moving groove, and the cooperation between the sliding rod and the sliding sleeve can improve the moving stability of the moving platform.

[0014] Preferably, the elevating mechanism includes a vertical plate vertically fixed on the machine table surface. An elevating plate is slidably arranged on one side of the vertical plate close to the movable seat, and the elevating platform is fixed on the elevating plate. A threaded rod is rotatably arranged on the other side of the vertical plate. A second driving motor for driving the threaded rod to rotate is arranged at the upper end of the vertical plate. A long groove is opened on the vertical plate. A threaded sleeve is threadedly connected to the threaded rod, and the side end of the threaded sleeve passes through the long groove and is fixedly connected to the back of the elevating plate.

[0015] By adopting the above technical solution, the lifting plate can slide up and down along the vertical plate and drive the lifting platform to move synchronously. When the second driving motor rotates, it can drive the threaded rod to rotate, and then drive the lifting plate and the lifting platform to move up and down through the threaded sleeve, realizing the up and down movement of the inclined drill bit.

[0016] Preferably, the clamping mechanism includes a plurality of fixed columns fixed on the moving platform. The upper ends of the fixed columns are rotatably provided with rotating heads. Hook claws are arranged on the side ends of the rotating heads. An arc-shaped convex strip is arranged on the moving platform, and the arc-shaped convex strip is arranged on the periphery of the circular hole. After placing the middle ring, the arc-shaped convex strip fits on the outer surface of the corresponding position of the second communication hole.

[0017] By adopting the above technical solution, when placing the middle ring, the outer wall of the corresponding position of the second communication hole is attached to the inner side of the arc-shaped convex strip, and the middle ring is placed in the positioning hole to realize the positioning of the middle ring. Then rotate the rotating head to press the hook claw above the edge of the middle ring to fix the middle ring, improving the stability of the middle ring when drilling at the bottom and inside.

[0018] Preferably, the bottom drilling mechanism includes a slide rail fixed under the moving platform, and a break is arranged in the middle of the slide rail. The position of the break is directly below the circular hole. A slide seat is slidably arranged on the slide rail. Two symmetrically distributed vertical plates are fixed below the slide seat. An installation frame is slidably arranged inside the vertical plates. A third driving motor is installed on the installation frame. A rotating shaft is fixed on the output shaft of the third driving motor. A vertical drill bit is installed on one of the rotating shafts, and a grinding roller is installed on the other rotating shaft. Two symmetrically distributed through holes are opened on the slide seat, and the upper ends of the vertical drill bit and the grinding roller are respectively located in the corresponding through holes. A rotating roller is rotatably arranged at the bottom of the installation frame. A pressing spring is sleeved outside the rotating shaft to push the installation frame downward. A horizontal rod is fixed inside the machine table. The horizontal rod is located below the rotating roller, and a convex platform is arranged at the middle position of the horizontal rod. A first inclined lever is fixed at the front end inside the machine table, and a second inclined lever is fixed at the rear end inside the machine table.

[0019] By adopting the above technical solution, two third driving motors drive the vertical drill bit and the grinding roller to rotate respectively. When the moving platform is in the initial position, the sliding seat is at one end of the sliding rail, and at this time, the vertical drill bit is directly below the circular hole. When the moving platform moves backward towards the machine table, as the moving platform moves, the rotating roller in the same vertical direction as the vertical drill bit is directly above the horizontal rod and moves along the horizontal rod. When it moves to the convex platform, the rotating roller will drive the mounting bracket it is installed on to move upward, thereby driving the vertical drill bit to move upward through the through hole and the circular hole, and drill a second communication hole at the bottom of the middle ring. When the rotating roller continues to move backward along the horizontal rod towards the machine table, under the action of the pressing spring, the rotating roller slides down from the convex platform, driving the vertical drill bit to reset downward. Then the moving platform continues to move. At this time, the upper inclined drill bit will move downward and drill a third communication hole in the middle ring. At the same time, the sliding seat will be squeezed by the second inclined lever, causing the sliding seat to move to the other end of the sliding rail and making the grinding roller move directly below the circular hole. At this time, the other rotating roller moves directly above the horizontal rod. During the subsequent reset process of the moving platform, when this rotating roller passes through the convex platform, it will drive the grinding roller to move upward and polish the burrs inside the second communication hole to prevent burrs from extending into the second communication hole when drilling the third communication hole, improving the surface flatness. After this rotating roller passes over the convex platform, the sliding seat will be squeezed by the first inclined lever again and move to the other end of the sliding rail, restoring to the initial position, facilitating subsequent continuous processing.

[0020] Preferably, magnetic blocks are fixed at both ends of the sliding rail, and iron blocks are arranged at both ends of the sliding seat. A locking hole is formed on the lower surface of the moving platform. A push plate is sleeved outside the rotating shaft, and several positioning rods are fixed on the upper surface of the push plate. A through hole for the positioning rods to pass through is formed on the sliding seat, and a positioning spring is sleeved on the positioning rods.

[0021] By adopting the above technical solution, when the sliding seat is at one end of the sliding rail, the magnetic block and the iron block at this end adsorb each other, which can improve the stability of the sliding seat and prevent the sliding seat from shifting when the moving platform moves. Moreover, when the mounting bracket is pushed upward by the convex platform and moves upward, it will drive the positioning rod to insert into the locking hole, so that the sliding seat will not shift during the grinding and drilling processes, improving the grinding and drilling effects.

[0022] Preferably, an aggregate box is arranged inside the machine table, and the aggregate box is located directly below the moving groove.

[0023] By adopting the above technical solution, the aggregate box can collect the waste generated by drilling, which is convenient for centralized treatment.

[0024] In summary, the present application includes at least one of the following beneficial technical effects:

[0025] 1. By using a split structure, both the end cover and the intermediate ring can be manufactured by forging process, with higher material strength of the parts. Drilling is carried out inside them, avoiding inevitable casting defects such as gas holes, shrinkage cavities, slag holes, cracks, and sand holes during the aluminum alloy casting process, improving the qualified rate of finished products, ensuring the flatness of the inner wall of the flow channel, reducing the resistance suffered by the liquid flow, improving the liquid discharge efficiency on the one hand, and reducing energy consumption on the other hand.

[0026] 2. With the help of the moving seat to drive the intermediate ring to move, during the moving process, the drilling step of the second communication hole is completed at the bottom of the intermediate ring by the bottom drilling mechanism, and during the moving process, the inclined drill bit is driven to descend by the lifting mechanism to realize the drilling step of the third communication hole, which can realize automatic drilling and improve production efficiency. Description of the Drawings

[0027] Figure 1 It is an isometric schematic diagram mainly showing the overall structure of the centrifugal pump body in the embodiment of the present application;

[0028] Figure 2 It is a schematic diagram mainly showing the structure of the centrifugal pump body after being disassembled in the embodiment of the present application;

[0029] Figure 3 It is a schematic diagram mainly showing the sectional structure of the centrifugal pump body in the embodiment of the present application;

[0030] Figure 4 It is an isometric schematic diagram mainly showing the overall structure of the processing device of the centrifugal pump body in the embodiment of the present application;

[0031] Figure 5 It is a schematic diagram mainly showing the internal structure of the machine platform in the embodiment of the present application;

[0032] Figure 6 It is a schematic diagram mainly showing the structure of the lifting mechanism in the embodiment of the present application;

[0033] Figure 7 It is a schematic diagram mainly showing the structure of the other side of the lifting mechanism in the embodiment of the present application;

[0034] Figure 8 It is a schematic diagram mainly showing the structure of the moving seat in the embodiment of the present application;

[0035] Figure 9 It is a schematic diagram mainly showing the structure of the horizontal rod in the embodiment of the present application;

[0036] Figure 10 It is a schematic diagram mainly showing the structure of the clamping mechanism in the embodiment of the present application;

[0037] Figure 11 It is a schematic diagram mainly showing the position of the bottom drilling mechanism in the embodiment of the present application;

[0038] Figure 12 This is a schematic diagram mainly showing the structure of the bottom drilling mechanism in the embodiment of the present application;

[0039] Figure 13 This is a schematic diagram mainly showing the structure of the other side of the bottom drilling mechanism in the embodiment of the present application;

[0040] Reference numerals: 1, housing; 11, liquid flow channel;

[0041] 2, intermediate ring; 21, second communication hole; 22, third communication hole;

[0042] 3, end cover; 31, liquid discharge channel; 32, first communication hole;

[0043] 4, sealing ring;

[0044] 5, machine table; 51, moving groove;

[0045] 6, moving seat; 61, moving platform; 62, positioning hole; 63, round hole; 64, lead screw motor; 65, sliding sleeve; 66, sliding rod; 67, fixed lead screw;

[0046] 7, bottom drilling mechanism; 71, slide rail; 72, slide block; 73, vertical plate; 74, mounting bracket; 75, rotating roller; 76, third driving motor; 77, rotating shaft; 78, vertical drill bit; 79, grinding roller; 710, through hole; 711, downward pressing spring; 712, horizontal rod; 713, convex platform; 714, first inclined lever; 715, second inclined lever; 716, support frame; 717, magnetic block; 718, iron block; 719, locking hole; 720, perforation; 721, positioning rod; 722, push plate; 723, positioning spring; 724, scraper;

[0047] 8, clamping mechanism; 81, fixed column; 82, rotating head; 83, claw; 84, arc-shaped convex strip;

[0048] 9, lifting mechanism; 91, vertical plate; 92, sliding track; 93, sliding base; 94, lifting plate; 95, threaded rod; 96, long slot; 97, threaded sleeve; 98, coupling; 99, second driving motor;

[0049] 10, lifting table; 20, mounting plate; 30, first driving motor; 40, inclined drill bit; 50, aggregate box. Detailed implementation manners

[0050] The following will further describe the present application in detail with reference to the Figures 1-13 accompanying drawings.

[0051] The embodiment of the present application discloses a forged centrifugal pump body structure.

[0052] Refer toFigures 1-3 , A forged centrifugal pump body structure includes a housing 1, an end cover 3 and an intermediate ring 2. The end cover 3 and the intermediate ring 2 are forged. The housing 1 and the intermediate ring 2, as well as the intermediate ring 2 and the end cover 3, are connected by bolts. Moreover, sealing rings 4 are provided at the top and side ends of the intermediate ring 2, which can improve the sealing performance. A liquid flow channel 11 is provided at the side end of the housing 1. A liquid discharge channel 31 and a first communication hole 32 which is inclined and communicates with the liquid discharge channel 31 are provided on the end cover 3. A second communication hole 21 and a third communication hole 22 which communicate with each other are provided on the intermediate ring 2. The second communication hole 21 is vertically distributed and aligned with the liquid flow channel 11, and the third communication hole 22 is inclined and aligned with the first communication hole 32.

[0053] Due to the use of a split structure, drilling of the second communication hole 21 and the third communication hole 22 can be realized on the intermediate ring 2. Therefore, forging process can be adopted, which can effectively avoid the problem of uneven surface of the flow channel caused by the casting process, reduce the liquid flow resistance, improve the liquid discharge efficiency of the centrifugal pump, and reduce the liquid flow resistance, which can reduce energy consumption and save energy and reduce emissions.

[0054] The implementation principle of a forged centrifugal pump body structure and its processing device in an embodiment of the present application is: through the split structure, the flow channel can be realized by drilling, improving the surface flatness of the flow channel, improving the liquid discharge efficiency of the centrifugal pump, and reducing energy consumption.

[0055] An embodiment of the present application discloses a processing device for a forged centrifugal pump body structure.

[0056] Referring to Figures 4-6 , A processing device for a forged centrifugal pump body structure, used to process the above-mentioned forged centrifugal pump body structure, includes a machine table 5. The machine table 5 is set on the ground, and the bottom of the machine table 5 is supported by adjustable legs. A moving groove 51 is opened at the middle position of the upper surface of the machine table 5. A moving seat 6 is arranged in the moving groove 51 for fixing the intermediate ring 2, and the moving seat can move back and forth along the moving groove 51. The moving seat 6 includes a moving platform 61. A positioning hole 62 for placing the intermediate ring 2 and a round hole 63 for facilitating drilling from the bottom are opened on the moving platform 61. A clamping mechanism 8 is arranged on the moving platform 61 to fix the intermediate ring 2 after it is placed. A bottom drilling mechanism 7 is arranged at the bottom of the moving platform 61, which can drill the second communication hole 21 on the intermediate ring 2 from the bottom. An elevating mechanism 9 is also arranged on the machine table 5. An elevating platform 10 is arranged on the elevating mechanism 9. An installation plate 20 is fixed to the west of the elevating platform 10, and an inclined drill bit 40 and a first driving motor 30 are installed on the installation plate 20. The first driving motor 30 is used to drive the inclined drill bit 40 to rotate to open the third communication hole 22.

[0057] The operator places the intermediate ring 2 on the moving platform 61, then firmly fixes the intermediate ring 2 through the clamping mechanism 8. After that, the moving platform 61 slowly moves backward in the moving groove 51 towards the rear of the machine table 5. During the initial moving process, the bottom drilling mechanism 7 drills holes in the intermediate ring 2 from below through the positioning holes 62 to realize the opening of the second communication hole 21. Then, the bottom drilling mechanism 7 withdraws from the second communication hole 21. During the subsequent moving process of the moving platform 61, the lifting mechanism 9 drives the inclined drill bit 40 to slowly descend. Under the combined action of the simultaneous movement of the intermediate ring 2 and the inclined drill bit 40, the opening of the third communication hole 22 can be realized from the inner side of the intermediate ring 2. Then, the moving platform 61 moves in the reverse direction and resets, and the lifting mechanism 9 drives the inclined drill bit 40 to rise and reset, realizing the automatic drilling of the intermediate ring 2. The operation is simple and the drilling efficiency is relatively high.

[0058] Reference Figure 8 、 9 、11, the moving seat 6 further includes a slide bar 66 and a fixed lead screw 67 that are fixed inside the machine table 5 and located below the moving groove 51. Both the slide bar 66 and the fixed lead screw 67 are parallel to the moving groove 51. Sliding sleeves 65 and lead screw motors 64 are respectively arranged on both sides of the moving platform 61. The sliding sleeve 65 is slidably arranged on the slide bar 66. The fixed lead screw 67 passes through the lead screw motor 64 and is threadedly connected to the central rotor of the lead screw motor 64. When the lead screw motor 64 rotates, the lead screw motor 64 will translate along the fixed lead screw 67, capable of driving the moving platform 61 to move.

[0059] It should be noted that the installation and application between the lead screw motor 64 and the fixed lead screw 67 are both prior arts, and the specific principle will not be described. When the lead screw motor 64 rotates, it can drive the moving platform 61 to translate along the slide bar 66 and the fixed lead screw 67 to achieve the moving effect.

[0060] Reference Figure 6 、 7 , the lifting mechanism 9 includes a vertical plate 91 fixed on the tabletop of the machine table 5, and the vertical plate 91 is vertically fixed on the back of the machine table 5. A sliding track 92 is arranged on the side of the vertical plate 91 close to the moving seat 6, and a sliding base 93 is slidably arranged on the sliding track 92. A lifting plate 94 is fixed on the sliding base 93, and the lifting table 10 is fixed on the side of the lifting plate 94 close to the moving platform 61. A threaded rod 95 is rotatably arranged on the other side of the vertical plate 91. A second driving motor 99 for driving the threaded rod 95 to rotate is arranged at the upper end of the vertical plate 91, and the output shaft of the second driving motor 99 is connected to the upper end of the threaded rod 95 through a coupling 98. A long slot 96 is opened on the vertical plate 91. A threaded sleeve 97 is threadedly connected to the threaded rod 95, and a connecting piece is fixed to the side end of the threaded sleeve 97. One end of the connecting piece away from the threaded sleeve 97 passes through the long slot 96 and is fixedly connected to the back of the lifting plate 94 for driving the lifting plate 94 to move up and down.

[0061] The lifting plate 94 can slide up and down along the vertical plate 91 and drive the lifting table 10 to move synchronously. When the second driving motor 99 rotates, it can drive the threaded rod 95 to rotate, and then drive the lifting plate 94 and the lifting table 10 to move up and down through the threaded sleeve 97, so as to realize the up and down movement of the inclined drill bit 40.

[0062] Reference Figure 10 , the clamping mechanism 8 includes a plurality of fixed columns 81 fixed on the moving platform 61, and the plurality of fixed columns 81 are symmetrically distributed on both sides of the positioning hole 62. The upper end of the fixed column 81 is provided with a rotatable rotating head 82, and the side end of the rotating head 82 is provided with a protruding claw 83, and the lower edge of the claw 83 is at the same height as the edge of the middle ring 2. An arc-shaped convex strip 84 is arranged on the moving platform 61, and the arc-shaped convex strip 84 is arranged on the periphery of the circular hole 63. After the middle ring 2 is placed, the arc-shaped convex strip 84 fits on the outer surface of the middle ring 2 at the corresponding position of the second communication hole 21.

[0063] When placing the middle ring 2, place the middle ring 2 in the positioning hole 62, then rotate the middle ring 2 so that the outer wall at the corresponding position of the second communication hole 21 fits against the inner side of the arc-shaped convex strip 84, and the positioning of the middle ring can be realized. Then rotate the rotating head 82 to press the claw 83 above the edge of the middle ring 2 to further fix the middle ring 2. When drilling at the bottom and inside, the middle ring 2 will not move sideways and upwards, improving the stability of the middle ring 2 and the drilling effect.

[0064] Reference Figure 9 、 12, 13. The bottom drilling mechanism 7 includes a slide rail 71 fixed below the moving platform 61. A break is provided in the middle of the slide rail 71, dividing the slide rail 71 into two parts, and the two parts are symmetrically distributed on both sides of the circular hole 63. The position of the break is exactly directly below the circular hole 63. A slide block 72 is slidably arranged on the slide rail 71, and the slide block 72 is slidably connected to both parts of the slide rail 71. Two symmetrically distributed vertical plates 73 are fixed at both ends of the lower surface of the slide block 72. An installation frame 74 is slidably arranged inside the vertical plates 73. Vertical slots are provided on the vertical plates 73, and two bolts are arranged on the installation frame 74. Both bolts are slidably arranged in the vertical slots to realize the up and down sliding of the installation frame 74. A third driving motor 76 is installed on the installation frame 74. A rotating shaft 77 is fixed on the output shaft of the third driving motor 76. A vertical drill bit 78 is installed on one of the rotating shafts 77 for opening the second communication hole 21, and a grinding roller 79 is installed on the other rotating shaft 77 for grinding the second communication hole 21. Two symmetrically distributed through holes 710 are provided on the slide block 72, and the upper ends of the vertical drill bit 78 and the grinding roller 79 are respectively located in the through holes 710 at the corresponding positions, and the upper ends of the vertical drill bit 78 and the grinding roller 79 are lower than the upper surface of the slide block 72, so that the slide block 72 can slide freely along the slide rail 71. A rotating roller 75 is rotatably arranged at the bottom of the installation frame 74, and a scraping plate 724 is arranged on the installation frame 74. A downward pressure spring 711 is sleeved outside the rotating shaft 77 for pushing the installation frame 74 downward. A horizontal rod 712 is fixed inside the machine table 5. The horizontal rod 712 is located below the rotating roller 75, and a convex platform 713 is arranged at the middle position of the horizontal rod 712. A support frame 716 is arranged at the bottom of the convex platform 713. A first inclined lever 714 is fixed at the front end inside the machine table 5, and a second inclined lever 715 is fixed at the rear end inside the machine table 5. Magnets 717 are fixed at both ends of the slide rail 71, and iron blocks 718 are arranged at both ends of the slide block 72. A locking hole 719 is provided on the lower surface of the moving platform 61. A push plate 722 is sleeved outside the rotating shaft 77, and a plurality of positioning rods 721 are fixed on the upper surface of the push plate 722. A through hole 720 for the positioning rods 721 to pass through is provided on the slide block 72. A positioning spring 723 is sleeved on the positioning rods 721.

[0065] Two third drive motors 76 drive the vertical drill bit 78 and the grinding roller 79 to rotate respectively, realizing their functions of drilling holes and grinding. When the moving platform 61 is at the initial position, i.e., the front end of the machine table 5, the sliding seat 72 is at one end of the slide rail 71. At this time, the vertical drill bit 78 is directly below the circular hole 63, and the magnetic block 717 and the iron block 718 at this end are adsorbed to each other. When the moving platform 61 moves backward to the machine table 5, as the moving platform 61 moves, the rotating roller 75 in the same vertical direction as the vertical drill bit 78 is directly above the horizontal rod 712 and moves along the horizontal rod 712. Moreover, the scraper 724 in front of it will scrape off the debris on the horizontal rod 712. When moving to the convex platform 713, the rotating roller 75 will drive the mounting bracket 74 it is installed on to move upward, thereby driving the vertical drill bit 78 to pass through the through hole 710 and the circular hole 63 upward, and drill the second communication hole 21 at the bottom of the middle ring 2. At this time, the positioning rod 721 will move upward and insert into the locking hole 719 to limit the movement of the sliding seat 72 and prevent the vertical drill bit 78 from shifting during the drilling process. When the rotating roller 75 continues to move backward along the horizontal rod 712 to the machine table 5, under the action of the compression spring 711, the rotating roller 75 slides down from the convex platform 713, driving the vertical drill bit 78 to reset downward. Then the moving platform 61 continues to move. At this time, the inclined drill bit 40 above will move downward and drill the third communication hole 22 on the middle ring 2. At the same time, the sliding seat 72 will be squeezed by the second inclined lever 715, causing the sliding seat 72 to move to the other end of the slide rail 71 and making the grinding roller 79 move directly below the circular hole 63. At this time, the other rotating roller 75 moves directly above the horizontal rod 712, and the magnetic block 717 and the iron block 718 on the other end side will adsorb to each other. During the subsequent reset process of the moving platform 61, when the rotating roller 75 passes through the convex platform 713, it will drive the grinding roller 79 to move upward and grind the burrs inside the second communication hole 21 to prevent burrs from extending into the second communication hole 21 when drilling the third communication hole 22 and improve the surface smoothness. Similarly, during the grinding process, the positioning rod 721 on the periphery of the grinding roller 79 will also insert into the locking hole 719 to limit the movement of the sliding seat 72 and improve the stability of the grinding roller 79. After the rotating roller 75 passes over the convex platform 713, the sliding seat 72 will be squeezed by the first inclined lever 714 and move to the other end of the slide rail 71, restoring to the initial position for convenient subsequent processing.

[0066] Reference Figure 5 , a collecting box 50 is arranged inside the machine table 5, and the collecting box 50 is located directly below the moving groove 51, which can collect the waste materials after drilling for convenient centralized treatment.

[0067] The implementation principle of a processing device for a forged centrifugal pump body structure in an embodiment of this application is as follows: The operator places the intermediate ring 2 on the moving platform 61 and fixes it through the clamping mechanism 8. Then, the moving platform 61 moves backward towards the machine table 5. In the early stage of the movement, the bottom drilling mechanism 7 drives the vertical drill bit 78 to drill the intermediate ring 2 from below through the positioning hole 62, realizing the drilling step of the second communication hole 21. After that, the bottom drilling mechanism 7 withdraws from the second communication hole 21. In the later stage of the movement of the moving platform 61, the lifting mechanism 9 drives the inclined drill bit 40 to descend synchronously. During the movement of the intermediate ring 2, the drilling step of the third communication hole 22 can be realized from the inner side of the intermediate ring 2. Then, the moving platform 61 moves in the reverse direction and resets, and the lifting mechanism 9 drives the inclined drill bit 40 to rise and reset. During the reset process, the bottom drilling mechanism 7 will drive the grinding roller 79 to grind the second communication hole 21 on the intermediate ring 2, preventing burrs from extending into the second communication hole 21 when drilling the third communication hole 22, improving the surface flatness, and realizing the automatic drilling of the intermediate ring 2. The operation is simple and the drilling efficiency is relatively high.

[0068] The above are all the preferred embodiments of this application, and the protection scope of this application is not limited accordingly. Therefore, all equivalent changes made according to the structure, shape, and principle of this application should be covered within the protection scope of this application.

Claims

1. A processing device for forging a centrifugal pump body structure, characterized in that: The invention comprises a machine platform (5) arranged on the ground, wherein a movable groove (51) is provided in the middle of the tabletop of the machine platform (5), a movable seat (6) which can move forward and backward is provided in the movable groove (51) and is used to place a forged centrifugal pump body structure, the movable seat (6) comprises a movable platform (61), a positioning hole (62) and a circular hole (63) are provided on the movable platform (61), a clamping mechanism (8) is provided on the movable seat (6), a bottom drilling mechanism (7) is provided below the movable seat (6), a lifting platform (10) and a lifting mechanism (9) for controlling the lifting platform (10) to move up and down are provided above the machine platform (5), a mounting plate (20) is provided below the lifting platform (10), and the mounting plate ( A tilting drill bit (40) and a first driving motor (30) for driving the tilting drill bit (40) to rotate are installed on the movable platform (61), the bottom drilling mechanism (7) comprises a slide rail (71) fixed below the movable platform (61), and a break is arranged in the middle of the slide rail (71), and the position of the break is located directly below the circular hole (63), a slide seat (72) is slidably arranged on the slide rail (71), two symmetrically distributed vertical plates (73) are fixed below the slide seat (72), a mounting frame (74) is slidably arranged on the inner side of the vertical plate (73), a third driving motor (76) is installed on the mounting frame (74), and a rotating shaft (77) is fixed on the output shaft of the third driving motor (76), A vertical drill bit (78) is mounted on one of the rotating shafts (77), and a grinding roller (79) is mounted on the other rotating shaft (77). The slide seat (72) is provided with two symmetrically distributed through holes (710), and the upper ends of the vertical drill bit (78) and the grinding roller (79) are respectively located in the through holes (710) at corresponding positions. A rotating roller (75) is rotatably arranged at the bottom of the mounting frame (74), and a downward pressure spring (711) is sleeved on the outer side of the rotating shaft (77) for pushing the mounting frame (74) downward. A horizontal rod (712) is fixed inside the machine platform (5), and the horizontal rod (712) is located below the rotating roller (75). A spring (711) is arranged in the middle of the horizontal rod (712). A boss (713) is provided, a first tilting lever (714) is fixed to the inner front end of the machine platform (5), a second tilting lever (715) is fixed to the inner rear end of the machine platform (5), magnetic blocks (717) are fixed to both ends of the slide rail (71), and iron blocks (718) are provided to both ends of the slide seat (72), a locking hole (719) is provided on the lower surface of the movable platform (61), a push plate (722) is sleeved on the outer side of the rotating shaft (77), a plurality of positioning rods (721) are fixed to the upper surface of the push plate (722), a through hole (720) is provided on the slide seat (72) for the positioning rods (721) to pass through, and a positioning spring (723) is sleeved on the positioning rods (721).

2. A processing device for forging a centrifugal pump body structure according to claim 1, characterized in that: The forged centrifugal pump body structure comprises a housing (1), an end cover (3) and an intermediate ring (2), wherein the end cover (3) and the intermediate ring (2) are forged, the housing (1) and the intermediate ring (2) as well as the intermediate ring (2) and the end cover (3) are connected by bolts, a liquid flow channel (11) is provided at a side end of the housing (1), a liquid discharge channel (31) and a first communication hole (32) connected to the liquid discharge channel (31) and obliquely distributed are provided on the end cover (3), a vertical second communication hole (21) and an inclined third communication hole (22) are provided on the intermediate ring (2), the second communication hole (21) and the third communication hole (22) are connected to each other, the second communication hole (21) is aligned with the liquid flow channel (11), and the third communication hole (22) is aligned with the first communication hole (32).

3. A processing device for forging a centrifugal pump body structure according to claim 2, characterized in that: The side ends and the top of the intermediate ring (2) are both provided with sealing rings (4) for improving the sealing performance between the intermediate ring (2) and the end cover (3).

4. The processing device for forging a centrifugal pump body structure according to claim 1, characterized in that: The movable seat (6) further comprises a slide bar (66) and a fixed lead screw (67) fixed inside the machine platform (5) and located below the movable groove (51); a slide sleeve (65) and a lead screw motor (64) are respectively arranged on both sides of the movable platform (61); the slide sleeve (65) is slidably arranged on the slide bar (66); the lead screw motor (64) and the fixed lead screw (67) are matched and installed to drive the movable platform (61) to move.

5. The processing device for forging a centrifugal pump body structure according to claim 1, characterized in that: The lifting mechanism (9) comprises a vertical plate (91) vertically fixed on the tabletop of the machine platform (5); a lifting plate (94) is slidably provided on one side of the vertical plate (91) close to the movable seat (6); the lifting platform (10) is fixed on the lifting plate (94); a threaded rod (95) is rotatably provided on the other side of the vertical plate (91); a second driving motor (99) for driving the threaded rod (95) to rotate is provided at the upper end of the vertical plate (91); a long slot (96) is provided on the vertical plate (91); a threaded sleeve (97) is threadedly connected to the threaded rod (95); and a side end of the threaded sleeve (97) passes through the long slot (96) and is fixedly connected to the back of the lifting plate (94).

6. The processing device for forging a centrifugal pump body structure according to claim 1, characterized in that: The clamping mechanism (8) comprises a plurality of fixed columns (81) fixed on the movable platform (61); a rotating head (82) is rotatably provided at the upper end of the fixed column (81); a hook (83) is provided at the side end of the rotating head (82); and an arc-shaped convex strip (84) is provided on the movable platform (61); the arc-shaped convex strip (84) is provided on the circumference of the circular hole (63); after the intermediate ring (2) is placed, the arc-shaped convex strip (84) is attached to the outer surface of the corresponding position of the second connecting hole (21).

7. The processing device for forging a centrifugal pump body structure according to claim 1, characterized in that: A material collection box (50) is provided inside the machine platform (5), and the material collection box (50) is located directly below the moving groove (51).

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