A water pump production process

Abstract

The application relates to the technical field of water pumps and discloses a water pump production process which comprises the following steps: S1, casting a mold to pour a pump body and a pump cover of a water pump; S2, polishing the pump body and the pump cover; S3, assembling a pump shaft and a mechanical seal to the pump cover and assembling an impeller to the pump shaft; S4, connecting the pump body and the pump cover through bolts; and S5, connecting the pump shaft and an output shaft of a motor through a shaft coupling. The mold device comprises a base and mounting frames arranged on opposite sides of the base, the base is provided with a bottom plate between the two mounting frames, and rotating seats are synchronously rotationally connected to opposite sides of the mounting frames. Base bars are rotationally arranged on opposite sides of the rotating seats, the base bars are provided with two moving seats along the length direction of the base bars, the two moving seats on the same base bar are connected with a first half frame and a second half frame respectively, a rotating ring is rotationally connected to one of the base bars, and the rotating ring is connected with an abutting plate. The application can reduce the loss of manpower.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of water pumps, in particular to a water pump production process. BACKGROUND

[0002] A water pump is a machine for conveying or pressurizing liquid, which is widely used in the fields of agriculture, chemical industry, shipbuilding, papermaking, etc. At present, the production process of a water pump usually involves the following steps: first, a pump body and a pump cover of the water pump are cast by using a sand casting method, and the pump body and the pump cover are polished; then, a pump shaft is arranged through the pump cover by a mechanical seal, and an impeller is arranged on the pump shaft; after that, the pump body and the pump cover are connected, so that the impeller is located in the pump body; finally, the pump shaft is connected to an output shaft of a motor through a shaft coupling.

[0003] In the process of casting the pump body of the water pump by using the sand casting method, the following steps are usually involved: first, a mold one is placed in a sand frame one, and then sand is filled into the sand frame one to cover the mold one and compacted; then, the sand frame one is turned over, the mold one is placed on a mold two to form a complete pump body shape, a sand frame two is stacked on the sand frame one, and sand is filled into the sand frame two to cover the mold two and compacted; after that, the sand frame one and the sand frame two are separated, the mold one and the mold two are taken out, an inner core made of foamed sponge is placed in a cavity formed in the sand frame one, and then the sand frame one and the sand frame two are stacked; finally, an alloy solution is injected into the cavity between the sand frame one and the sand frame two to form the pump body, and after cooling, the sand frame one and the sand frame two are separated, the sand and the foamed sponge are cleaned, and the pump body is taken out.

[0004] According to the related art, the movement of the sand frame during the forming process of the pump body is manually operated. When the sand frame is filled with the mold and the sand, the sand frame is heavy, and it is labor-consuming to move the sand frame manually. SUMMARY

[0005] In order to reduce the labor consumption, the present application provides a water pump production process.

[0006] The present application provides a water pump production process, which adopts the following technical solution:

[0007] A water pump production process includes the following steps,

[0008] S1, casting a mold and pouring a pump body and a pump cover of a water pump;

[0009] S2, polishing the pump body and the pump cover;

[0010] S3, assembling a pump shaft and a mechanical seal to the pump cover, and assembling an impeller to the pump shaft;

[0011] S4, connecting the pump body and the pump cover by bolts;

[0012] S5, connects the pump shaft to the output shaft of the motor through a coupling;

[0013] Wherein, in S1, a casting mold device is used for casting, the casting mold device includes a base and mounting frames arranged on opposite sides of the base, the base has a chassis located between the two mounting frames, and the mounting frames are connected to rotating seats on opposite sides for synchronous rotation;

[0014] The two movable frames are connected to each other with a first half frame and a second half frame respectively. The two movable frames on the same base are connected with the first half frame and the second half frame respectively. The two movable frames on the two sides of the base can be rotated to form a first sand frame connected end to end, and the second half frames on the two base rods jointly enclose a second sand frame connected in the first position. The first sand frame, the second sand frame and the chassis are opposite, and the mounting frame is provided with a power source that drives the rotating seat to rotate so that the first sand frame and the second sand frame are flipped over.

[0015] A rotating ring is rotatably connected to one of the base rods, and the rotating ring is located between the two movable seats of the base rod. The rotating ring is connected to an abutment plate, and the rotating ring can drive the abutment plate to rotate to be opposite to or staggered with the first sand frame; when the abutment plate is staggered with the first sand frame, the first sand frame and the second sand frame can move to overlap and abut each other, and make the first sand frame abut against the chassis.

[0016] By adopting the above technical solution, the first sand frame is first abutted against the abutment plate, and then mold one and molding sand are placed in the first sand frame. Then, the power source is used to drive the first sand frame and the second sand frame to swap and flip. The first sand frame is then abutted against the chassis, and mold two is placed on mold one. The second sand frame is abutted against the first sand frame and then filled with molding sand, so that a cavity that adapts to the water pump housing is formed between the first sand frame and the second sand frame. The base rod is rotated by the rotation source, driving the first sand frame and the second sand frame to disassemble, so that the formed pump housing can be demolded, thereby mechanically assisting the flipping and movement of the sand frames and the demolding of the pump body, reducing manpower loss.

[0017] Optionally, the driving member corresponds one-to-one to the movable seat, and the driving member includes a connecting seat, a screw and a driving motor. The connecting seat is connected to the base rod, and the screw is rotatably connected to the connecting seat, and the axis direction of the screw is parallel to the length direction of the base rod. The movable seat slides on the base rod and is threadedly connected to the screw. The driving motor is installed on the connecting seat to drive the screw to rotate.

[0018] By adopting the technical scheme, the driving motor drives the screw rod to rotate, which drives the moving seat to move along the screw rod axis direction, thereby driving the first half frame and the second half frame to move along the base rod axis direction.

[0019] Optionally, the two mounting frames are connected with the same mounting seat at the top, a counterweight plate opposite to the first sand frame moves up and down on the mounting seat, an adjusting assembly for adjusting the height of the counterweight plate is arranged on the mounting seat, the size of the counterweight plate is greater than the size of the first sand frame, and the counterweight plate can move between the two base rods.

[0020] By adopting the technical scheme, the counterweight plate is between the two base rods, which can compact the molding sand in the opposite sand frame, and the up and down movement of the counterweight plate can adjust the height of the counterweight plate between the two base rods to adapt to the height of the sand frame.

[0021] Optionally, the adjusting assembly comprises a winding roller, an adjusting rope and an adjusting motor, the winding roller is rotatably connected to the mounting seat, the adjusting rope is wound on the winding roller and connected with the counterweight plate, and the adjusting motor drives the winding roller to rotate to wind or unwind the adjusting rope.

[0022] By adopting the technical scheme, the adjusting motor drives the adjusting rope to wind or unwind on the winding roller, thereby adjusting the height of the counterweight plate connected with the adjusting rope.

[0023] Optionally, a guide seat is connected to the mounting seat, and a guide rod connected with the counterweight plate moves up and down in the guide seat.

[0024] By adopting the technical scheme, the cooperation of the guide seat and the guide rod can guide the up and down movement of the counterweight plate, thereby improving the stability of the counterweight plate.

[0025] Optionally, the first half frame and the second half frame are each provided with a distance adjusting plate, a plurality of penetrating rods are connected to each distance adjusting plate, a plurality of perforations are formed in the first half frame and the second half frame for the penetrating rods to penetrate, and a distance adjusting member is arranged on the first half frame and the second half frame for adjusting the distance between the distance adjusting plate and the first half frame or the second half frame.

[0026] By adopting the technical scheme, the position of the distance adjusting plate is adjusted, the penetrating rods are arranged in the space enclosed by the opposite first sand frame and second sand frame, the penetrating rods are embedded in the molding sand when the molding sand enters the first sand frame and the second sand frame, the penetrating rods are moved out of the space enclosed by the first sand frame and the second sand frame before the base rod drives the first sand frame and the second sand frame to disassemble, a hole is formed in the molding sand, the contact area between the molding sand and the sand frame is reduced, and the molding sand is more easily separated from the sand frame to demold the shell of the pump body.

[0027] Optionally, the distance adjusting member comprises studs corresponding to the first half frame and the second half frame, the studs rotate on the outer walls of the corresponding first half frame and second half frame, and the distance adjusting plate is threadedly connected to the outer wall of the stud.

[0028] By adopting the above technical solution, when the stud rotates, the distance adjusting plate moves along the axial direction of the stud through the guide of the penetrating rod to adjust the position of the distance adjusting plate and the penetrating rod.

[0029] Optionally, the bottom disc is rotationally connected to the base, and the base is provided with a rotating member for driving the bottom disc to rotate.

[0030] By adopting the above technical solution, when the pump body shell is formed and the first sand frame and the second sand frame are separated from the molding sand, the bottom disc gives the molding sand placed on the bottom disc a tendency to rotate, thereby improving the convenience of separating the molding sand from the first sand frame and the second sand frame.

[0031] In summary, the present application has the following advantages:

[0032] By driving the first sand frame and the second sand frame to change positions and overturn through the power source, and driving the base rod to move through the rotating source to separate the first sand frame and the second sand frame, the loss of manpower in the process of casting the pump body shell is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0033] Figure 1 is a structural schematic diagram of the embodiment of the present application in step S101;

[0034] Figure 2 is a structural schematic diagram of the embodiment of the present application in step S102; Figure 1 is an enlarged structural schematic diagram of position A in

[0035] Figure 3 is a structural schematic diagram of the embodiment of the present application in step S104;

[0036] Figure 4 is a structural schematic diagram of the embodiment of the present application in step S107;

[0037] Figure 5 is an enlarged structural schematic diagram of position B in Figure 4

[0038] ​Explanation of reference signs: 1, base; 2, mounting frame; 3, bottom plate; 4, rotating seat; 5, base rod; 6, rotating source; 7, moving seat; 8, driving piece; 81, connecting seat; 82, screw rod; 83, driving motor; 9, first half frame; 10, second half frame; 11, first sand frame; 12, second sand frame; 13, power source; 14, rotating ring; 15, abutting plate; 16, mounting seat; 17, counterweight plate; 18, adjusting assembly; 181, winding roller; 182, adjusting rope; 183, adjusting motor; 19, guide seat; 20, guide rod; 21, distance adjusting plate; 22, penetrating rod; 23, perforation; 24, distance adjusting piece; 241, stud; 25, rotating piece; 251, first gear; 252, second gear; 253, rotating motor; 26, mounting cavity. DETAILED DESCRIPTION

[0039] The following will be described in detail in combination with the accompanying drawings. Figures 1-5 The application is further described in detail.

[0040] The embodiment of the application discloses a water pump production process, and the process steps are as follows:

[0041] S1, using a casting device to cast a mold and cast a pump body and a pump cover of the water pump;

[0042] S2, using a lathe to polish and polish the pump body and the pump cover;

[0043] S3, assembling a pump shaft and a mechanical seal to the pump cover, and assembling an impeller to the pump shaft;

[0044] S4, connecting the pump body and the pump cover through bolts;

[0045] S5, connecting the pump shaft and the output shaft of the motor through a shaft coupling.

[0046] Wherein, referring to Figure 1 The casting device comprises a base 1 fixed on the ground and mounting frames 2 fixed on opposite sides of the base 1 respectively, and the mounting frames 2 extend upward in the vertical direction, so that the mounting frames 2 and the base 1 form a U-shaped structure together.

[0047] Two opposite sides of the two mounting frames 2 are rotationally connected with rotating seats 4, and the mounting frames 2 are provided with power sources 13 for driving the rotating seats 4 to rotate, the power sources 13 are first motors fixed on the sides of the two mounting frames 2 away from each other, the output shafts of the two first motors penetrate through the corresponding mounting frames 2 and are fixed on the corresponding rotating seats 4, the axes of the two first motor output shafts extend along the same horizontal straight line, and the two first motor output shafts rotate synchronously to drive the two rotating seats 4 to turn synchronously.

[0048] Each of the two rotating bases 4 has a mounting cavity 26 on one side thereof. A vertically extending base rod 5 is rotatably connected to each of the two rotating bases 4 at the mounting cavity 26. Each base rod 5 has two movable bases 7 that move vertically up and down. Each base rod 5 is connected to a drive member 8 that corresponds one to one with the movable base 7. The drive member 8 is used to drive the movable base 7 to move along the length of the base rod 5.

[0049] Reference Figure 1 and Figure 2 Each driving member 8 includes a connecting base 81, a screw 82, and a drive motor 83. The connecting base 81 is fixedly connected to the base rod 5, and the screw 82 is rotatably connected to the connecting base 81, with the axis direction of the screw 82 parallel to the length direction of the base rod 5. The drive motor 83 is mounted on the connecting base 81 and connected to the screw 82 to drive the screw 82 to rotate. The movable base 7 is slidably sleeved on the base rod 5 and is threadedly connected to the outer wall of the screw 82. Therefore, when the drive motor 83 drives the screw 82 to rotate, the movable base 7 moves up and down on the base rod 5.

[0050] Reference Figure 1 and Figure 3 The two movable seats 7 on the same base rod 5 are respectively connected to the first half frame 9 and the second half frame 10. The first half frame 9 and the second half frame 10 are both semicircular and have the same size. The first half frames 9 on the two base rods 5 correspond to each other and are located on the same horizontal plane. The second half frames 10 on the two base rods 5 correspond to each other and are located on the same horizontal plane. The driving motors 83 corresponding to the two first half frames 9 rotate synchronously, and the driving motors 83 corresponding to the two second half frames 10 rotate synchronously, so that the movement of the two first half frames 9 on the base rod 5 is synchronized, and the movement of the two second half frames 10 on the base rod 5 is synchronized.

[0051] Each rotating seat 4 is provided with a rotating source 6 for driving the base rod 5 to rotate. The rotating source 6 is a second motor fixed to the rotating seat 4. The output shaft of the second motor extends in the vertical direction and is fixed to the base rod 5. The directions of the output shafts of the two second motors are synchronized and opposite to each other, so as to drive the two base rods 5 to rotate synchronously in opposite directions.

[0052] When the second motor drives the base rod 5 to rotate so that the first half frames 9 on the two base rods 5 rotate toward each other, the two first half frames 9 can move to abut each other, forming a first sand frame 11 connected end to end and in a circular ring shape. At the same time, the two second half frames 10 abut each other, forming a second sand frame 12 connected end to end and in a circular ring shape. The first sand frame 11 and the second sand frame 12 are coaxially arranged. In the initial state, the first sand frame 11 is located directly above the second sand frame 12. When the first motor drives the two rotating seats 4 to flip synchronously, the first sand frame 11 and the second sand frame 12 are driven to flip so that the second sand frame 12 is located directly above the first sand frame 11.

[0053] ReferenceFigure 1 and Figure 2 One of the base bars 5 is rotatably connected with a rotating ring 14, and a rotating ring groove is arranged in the middle of the base bar 5 to cooperate with the rotating ring 14. The rotating ring 14 rotates around the vertical center line of the base bar 5 as the rotating axis, and is located between the two moving seats 7 on the base bar 5. The rotating ring 14 is connected with an abutting plate 15, the size of the abutting plate 15 is larger than that of the first sand frame 11, and the rotating ring 14 can drive the abutting plate 15 to rotate to be opposite to the first sand frame 11 between the two base bars 5, or to be staggered with the first sand frame 11.

[0054] Referring to Figure 1 The base 1 is connected with a bottom disc 3, the bottom disc 3 is a circular ring with the axis extending in the vertical direction, and the outer diameter of the bottom disc 3 is larger than that of the first sand frame 11. The bottom disc 3 is coaxially arranged with the first sand frame 11. When the first sand frame 11 and the second sand frame 12 are abutted with the abutting plate 15, the rotating seat 4, the first sand frame 11 and the second sand frame 12 are not interfered with the bottom disc 3 when the rotating seat 4 is flipped. When the abutting plate 15 is staggered with the first sand frame 11, and the first sand frame 11 is located directly below the second sand frame 12, the first sand frame 11 can be moved downward to abut against the bottom disc 3, and the second sand frame 12 is moved to abut against the first sand frame 11.

[0055] The casting step of the mold device in S1 is as follows:

[0056] S101, the base bar 5 is driven by the second motor to rotate to form the first sand frame 11 by the two first half frames 9, and the second sand frame 12 by the two second half frames 10. The first sand frame 11 is located directly above the second sand frame 12, then the abutting plate 15 is rotated between the first sand frame 11 and the second sand frame 12, and the first sand frame 11 is driven downward by the driving element 8 to abut against the upper surface of the abutting plate 15;

[0057] S102, a mold one abutting against the upper surface of the abutting plate 15 is placed in the first sand frame 11, and then the sand in the first sand frame 11 is filled and compacted. The surface of the mold one and the surface of the sand in the first sand frame 11 are coated with anti-sand sticking paint;

[0058] S103, the rotating seat 4 is driven to rotate by the first motor, so that the first sand frame 11 and the second sand frame 12 are flipped, and the second sand frame 12 is located directly above the first sand frame 11. Then the abutting plate 15 is rotated to be separated from the first sand frame 11, so that the mold one is exposed. The mold two is placed on the mold one to form a complete pump body shape, and the surface of the mold two is coated with anti-sand sticking paint;

[0059] S104, the first sand frame 11 is moved downward by the driving element 8 to abut against the upper surface of the bottom disc 3, and the second sand frame 12 is moved downward to abut against the first sand frame 11, and then the sand in the second sand frame 12 is filled and compacted;

[0060] S105: The second sand frame 12 is driven upward by the driving member 8 to separate the molding sand in the second sand frame 12 from the second mold. The second mold and the first mold are then removed in sequence. An inner core is placed in the mold cavity formed in the first sand frame 11. The second sand frame 12 is then driven downward again to contact the first sand frame 11.

[0061] S106, injecting the alloy solution into the cavity formed by the first sand frame 11 and the second sand frame 12, and forming a pump body after the alloy solution is cooled;

[0062] S107, the second motor drives the two first half frames 9 of the base rod 5 to separate away from each other, and the two second half frames 10 to separate away from each other, so as to demold the pump body, and then clean the molding sand and the inner core.

[0063] Reference Figure 3 and Figure 4 To facilitate demolding of the pump body in S107, a distance-adjusting plate 21 is movably connected to each of the first and second frame halves 9, 10. The distance-adjusting plates 21 correspond one-to-one to the first and second frame halves 9, 10. The distance-adjusting plates 21 are arc-shaped and face the convex surfaces of the first and second frame halves 9, 10. Each distance-adjusting plate 21 is connected to a plurality of penetrating rods 22. The ends of the penetrating rods 22, which are away from the distance-adjusting plates 21, pass through the corresponding first and second frame halves 9, 10. The first and second frame halves 9, 10 are provided with through-holes 23 for the penetrating rods 22 to pass through. Distance-adjusting members 24 are provided between the first and second frame halves 9 and 10, and between the second and third frame halves 10 and the distance-adjusting plates 21. The distance-adjusting members 24 drive the distance-adjusting plates 21 to move to adjust the positions of the penetrating rods 22.

[0064] Specifically, the distance-adjusting member 24 includes a stud 241, which corresponds one-to-one with the first and second frame halves 9, 10. The stud 241 is rotatably connected to the convex surface of the corresponding first and second frame halves 9, 10, and extends radially in the direction of the corresponding first and second frame halves 9, 10. The distance-adjusting plate 21 is threadedly mounted on the outer wall of the corresponding stud 241. Rotation of the stud 241 drives the distance-adjusting plate 21 to move along the axis of the stud 241, thereby simultaneously driving the penetrating rod 22 to move in the corresponding first and second frame halves 9, 10.

[0065] In S101, the mobile distance adjusting plate 21 drives the penetrating rod 22 to penetrate through the first half frame 9 and the second half frame 10, so that the penetrating rod 22 is moved into the first sand frame 11 and the second sand frame 12, and the mold one and the mold two do not interfere with the penetrating rod 22. In S107, before the first sand frame 11 and the second sand frame 12 are separated, the distance adjusting plate 21 is moved to the direction away from the interior of the first sand frame 11 and the second sand frame 12, so that the contact area between the penetrating rod 22 and the sand in the first sand frame 11 and the second sand frame 12 is reduced, so that the gap caused by the penetrating rod 22 in the first sand frame 11 and the second sand frame 12 is formed, so that when the first sand frame 11 and the second sand frame 12 are separated, the sand is more easily separated from the first half frame 9 and the second half frame 10 and collapsed.

[0066] In S107, after the first half frame 9 and the second sand frame 12 are separated, the penetrating rod 22 is moved to the concave surface close to the first half frame 9 and the second half frame 10, and the base rod 5 is rotated by the second motor, so that the penetrating rod 22 knocks the sand around the pump body to make the sand around the pump body fall off.

[0067] Referring to Figure 4 and Figure 5 Further, the bottom plate 3 is rotationally connected with a rotating shaft extending in the vertical direction, the bottom plate 3 is coaxially sleeved on the outer wall of the rotating shaft, and the base 1 is provided with a rotating member 25 for driving the rotating shaft to rotate, so that when the penetrating rod 22 knocks the sand, the base 1 can drive the pump body to rotate, thereby increasing the knocking range of the penetrating rod 22 on the sand.

[0068] The rotating member 25 includes a first gear 251, a second gear 252 and a rotating motor 253, the first gear 251 is fixedly and coaxially sleeved on the outer wall of the rotating shaft, the rotating motor 253 is fixed on the base 1, the second gear 252 is fixedly and coaxially sleeved on the outer wall of the base 1, and the first gear 251 and the second gear 252 are engaged with each other, and when the second gear 252 is driven to rotate by the rotating motor 253, the rotating shaft and the bottom plate 3 are driven to rotate by the first gear 251.

[0069] Referring to Figure 1 In order to facilitate the compaction of the sand in the first sand frame 11 in S102 and the compaction of the sand in the second sand frame 12 in S104, a mounting seat 16 is connected between the two mounting frames 2, the mounting seat 16 is located at the top of the mounting frame 2, and the mounting seat 16 is movably provided with a counterweight plate 17, the counterweight plate 17 has a certain weight, and when the first sand frame 11 is located directly above the second sand frame 12, the counterweight plate 17 is opposite to the first sand frame 11. The size of the counterweight plate 17 is greater than that of the first sand frame 11, and the counterweight plate 17 can be moved downward between the two base rods 5.

[0070] The mounting base 16 is provided with an adjusting assembly 18 for adjusting the height of the counterweight plate 17. Specifically, the adjusting assembly comprises a winding roller 181, an adjusting rope 182 and an adjusting motor 183. The winding roller 181 is rotatably connected to the mounting base 16, and the mounting base 16 is provided with a gap exposing the middle part of the winding roller 181. The axis of the winding roller 181 extends horizontally and is perpendicular to the length direction of the two mounting frames 2. One end of the adjusting rope 182 is fixed to the winding roller 181, and the other end is fixed to the upper surface of the counterweight plate 17. The adjusting rope 182 is wound on the winding roller 181, and the adjusting motor 183 is mounted on the mounting base 16 to drive the winding roller 181 to rotate.

[0071] The winding roller 181 drives the adjusting rope 182 to wind or unwind. When the winding roller 181 winds the adjusting rope 182, the counterweight plate 17 moves upward. When the winding roller 181 unwinds the adjusting rope 182, the counterweight plate 17 moves downward to compact the sand in the first sand frame 11 or the second sand frame 12.

[0072] Further, the mounting base 16 is fixed with a guide seat 19 penetrating through the mounting base 16. A guide rod 20 penetrates through the guide seat 19 and slides up and down in the guide seat 19. The lower end of the guide rod 20 penetrates through the guide seat 19 and is fixed to the upper surface of the counterweight plate 17. When the adjusting rope 182 winds or unwinds to drive the counterweight plate 17 to move up and down, the guide rod 20 moves up and down in the guide seat 19 to guide the movement of the counterweight plate 17, thereby improving the stability of the counterweight plate 17 when moving.

[0073] The implementation principle of the water pump production process in the embodiment is as follows. First, the penetrating rods 22 are respectively penetrated into the first sand frame 11 and the second sand frame 12. Then, the mold is combined with the first sand frame 11 and the second sand frame 12, so that the first sand frame 11 and the second sand frame 12 are closed to form a cavity suitable for the water pump shell. Then, the alloy solution is poured into the cavity. After the alloy solution cools, the penetrating rods 22 are moved away from the first sand frame 11 and the second sand frame 12. Then, the two base rods 5 are rotated away from each other, so that the first sand frame 11 and the second sand frame 12 are disassembled to demold the water pump shell. Then, the penetrating rods 22 are adjusted to move towards the first half frame 9 and the second half frame 10, and the base rods 5 are reciprocatingly rotated to knock the sand covering the periphery of the pump shell, so that the sand is separated from the pump shell. After the pump shell is demolded, it is cut and polished, and then the remaining parts are connected to the pump shell.

[0074] The above are preferred embodiments of the present application, which do not limit the protection scope of the present application. Any equivalent changes made on the basis of the structure, shape and principle of the present application should be covered by the protection scope of the present application.

Claims

1. A water pump production process, characterized by: The following steps are included: S1, mold and cast the pump body and pump cover of the water pump; S2, polish the pump body and pump cover; S3, assemble the pump shaft and mechanical seal onto the pump cover, and assemble the impeller onto the pump shaft; S4, connect the pump body and pump cover by bolts; S5, connects the pump shaft to the output shaft of the motor through a coupling; Wherein, in S1, a casting mold device is used for casting, the casting mold device comprises a base (1) and mounting frames (2) arranged on opposite sides of the base (1), the base (1) has a chassis (3) located between the two mounting frames (2), and the mounting frames (2) are synchronously rotatably connected to rotating seats (4) on opposite sides; A base rod (5) is rotated on each side opposite to the rotating seat (4), and a rotation source (6) is provided on the rotating seat (4) for driving the base rod (5) to rotate. The base rod (5) moves along its own length direction with two moving seats (7), and the base rod (5) has a driving member (8) for driving the moving seat (7) to move. The two moving seats (7) on the same base rod (5) are respectively connected to the first half frame (9) and the second half frame (10). The base rods ( 5) capable of rotating until the first half frames (9) on the two base rods (5) together enclose a first sand frame (11) connected end to end, and the second half frames (10) on the two base rods (5) together enclose a second sand frame (12) connected end to end, the first sand frame (11), the second sand frame (12) and the chassis (3) are opposite to each other, and the mounting frame (2) has a power source (13) for driving the rotating seat (4) to rotate so that the first sand frame (11) and the second sand frame (12) are turned over; A rotating ring (14) is rotatably connected to one of the base rods (5), the rotating ring (14) is located between the two movable seats (7) of the base rod (5), and the rotating ring (14) is connected to an abutment plate (15), and the rotating ring (14) can drive the abutment plate (15) to rotate to be opposite to or staggered with the first sand frame (11); when the abutment plate (15) is staggered with the first sand frame (11), the first sand frame (11) and the second sand frame (12) can move to overlap and abut each other, and the first sand frame (11) is abutted against the chassis (3); The first half frame (9) and the second half frame (10) are both provided with a movable distance-adjusting plate (21), and each of the distance-adjusting plates (21) is connected to a plurality of penetrating rods (22). The first half frame (9) and the second half frame (10) are both provided with through holes (23) for the penetrating rods (22) on the distance-adjusting plates (21) to penetrate, and the first half frame (9) and the second half frame (10) are both provided with distance-adjusting members (24) for adjusting the distance between the distance-adjusting plates (21) and themselves.

2. A water pump production process according to claim 1, characterized in that: The driving member (8) corresponds to the movable seat (7) one by one. The driving member (8) includes a connecting seat (81), a screw rod (82) and a driving motor (83). The connecting seat (81) is connected to the base rod (5). The screw rod (82) is rotatably connected to the connecting seat (81), and the axial direction of the screw rod (82) is parallel to the length direction of the base rod (5). The movable seat (7) slides on the base rod (5) and is threadedly connected to the screw rod (82). The driving motor (83) is installed on the connecting seat (81) to drive the screw rod (82) to rotate.

3. A water pump production process according to claim 1, characterized in that: The tops of the two mounting frames (2) are connected to a same mounting seat (16), the mounting seat (16) is provided with a counterweight plate (17) that moves up and down and is opposite to the first sand frame (11), and an adjusting component (18) for adjusting the height of the counterweight plate (17) is provided on the mounting seat (16), the size of the counterweight plate (17) is larger than the size of the first sand frame (11), and the counterweight plate (17) can be moved between the two base rods (5).

4. A water pump production process according to claim 3, characterized in that: The adjustment assembly (18) includes a roller (181), an adjustment rope (182), and an adjustment motor (183). The roller (181) is rotatably connected to the mounting seat (16). The adjustment rope (182) is wound on the roller (181) and connected to the counterweight plate (17). The adjustment motor (183) drives the roller (181) to rotate so that the adjustment rope (182) is wound or unwound.

5. A water pump production process according to claim 4, characterized in that: The mounting seat (16) is connected to a guide seat (19), and a guide rod (20) connected to the counterweight plate (17) is provided in the guide seat (19) and moves up and down.

6. A water pump production process according to claim 1, characterized in that: The distance adjusting member (24) comprises a stud (241), the stud (241) corresponding to the first half frame (9) and the second half frame (10) one by one, the stud (241) rotates on the outer wall of the corresponding first half frame (9) and the second half frame (10), and the distance adjusting plate (21) is threadedly connected to the outer wall of the stud (241).

7. A water pump production process according to claim 1, characterized in that: The chassis (3) is rotatably connected to the base (1), and the base (1) has a rotating member (25) for driving the chassis (3) to rotate.

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