Spinning device for stainless steel pump shell of water pump
By introducing a threaded rod, slider, and limiting plate into the spinning device, the problem of vertical movement of the pump casing during spinning was solved, achieving effective limiting and shaping of the pump casing and improving the quality of the finished product.
Patent Information
- Application Number
- CN202520398648.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-07
- Publication Date
- 2026-01-27
- Estimated Expiration
- 2035-03-07
AI Technical Summary
The existing pump casing does not have a top limit during the spinning process, which causes vertical movement and affects the quality of the finished product.
A stainless steel pump casing spinning device for water pumps was designed. It uses a combination of a threaded rod, a slider and a limiting plate. The limiting plate moves down and abuts against the top of the pump casing to restrict its vertical movement. The device is combined with a servo motor and a telescopic cylinder to achieve the shaping of the pump casing.
It effectively limits the vertical movement of the pump casing, thus improving the pass rate of the final product.
Smart Images

Figure CN223833212U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of mechanical processing equipment technology, and in particular to a stainless steel pump casing spinning device for water pumps. Background Technology
[0002] In the water pump manufacturing industry, stainless steel pump casings are widely used due to their strong corrosion resistance and long service life. During the pump casing processing, spinning devices are often used to shape the ends of the pump casing.
[0003] The existing pump casing rotates vertically during the spinning process. However, since there is no limit to the top of the pump casing, it may move vertically during rotation, which will affect the quality of the final product. Utility Model Content
[0004] The purpose of this utility model is to solve the following shortcomings in the prior art: the existing pump casing will rotate vertically during the spinning process, and since there is no limit to the top of the pump casing, the pump casing may move vertically during the rotation, which will affect the quality of the final product. Therefore, a water pump stainless steel pump casing spinning device is proposed.
[0005] To achieve the above objectives, the present invention adopts the following technical solution:
[0006] A stainless steel pump casing spinning device for a water pump includes a platform. An mounting groove is formed on the upper surface of the platform. A drive motor is fixedly installed in the mounting groove. A module is fixedly installed on the output shaft of the drive motor. Multiple mounting blocks are fixedly installed in a circumferential shape on the upper surface of the module. A spring rod is fixedly installed on the surface of each mounting block. An arc-shaped pressure plate is fixedly installed at one end of each spring rod. A mounting seat is fixedly installed on the upper surface of the platform. A telescopic cylinder is fixedly installed on the surface of the mounting seat. A movable seat, fixedly connected to the drive shaft of the telescopic cylinder, is slidably provided on the upper surface of the telescopic cylinder. A rotating shaft is rotatably installed on the side of the movable seat near the module. A pressure block is fixedly installed at one end of the rotating shaft. The rotating shaft is controlled to rotate by a drive assembly.
[0007] A threaded rod is vertically and rotatably mounted on the upper surface of the platform. A slider is threaded onto the threaded rod. A limit plate is fixedly mounted on one end of the slider. The limit plate is located directly above the module. The slider's rotation is restricted by a limiting component.
[0008] Preferably, the limiting component includes a limiting rod that is vertically fixedly installed on the upper surface of the platform, and the slider is slidably sleeved on the limiting rod.
[0009] Preferably, the drive assembly includes a servo motor fixedly mounted on the surface of the mounting base and a telescopic rod fixedly mounted on the end of the output shaft of the servo motor. The upper surface of the movable base has an opening, the output shaft of the servo motor passes through the opening, and one end of the telescopic rod is fixedly connected to the rotating shaft.
[0010] Preferably, the surface of the limiting plate has an annular opening, and a turntable is rotatably installed inside the annular opening. The lower surface of the turntable is bonded with a rubber anti-slip layer.
[0011] Preferably, the upper surface of the module is vertically provided with a vertical rod, and multiple L-shaped plates are fixedly installed on the vertical rod in a circumferential shape. A fixing plate is fixedly sleeved on the spring rod, and an inclined plate is fixedly installed at the top of the fixing plate. The surface of the inclined plate has a sliding groove, and the bottom ends of the multiple L-shaped plates are slidably arranged in the multiple sliding grooves. Multiple connecting rods are fixedly installed on the lower surface of the vertical rod, and multiple sliding openings are circumferentially opened on the upper surface of the module. The multiple connecting rods are slidably inserted into the multiple sliding openings. The vertical rod is controlled to move downward by a pressing component, and a retaining ring is fixedly installed at the top of the vertical rod by multiple connecting rods.
[0012] Preferably, the pressing component includes a force-bearing block slidably sleeved on the output shaft of the drive motor and a backing plate fixedly installed on the side wall of the movable seat. The longitudinal section of the backing plate is a right trapezoid, the longitudinal section of the force-bearing block is an isosceles trapezoid, and the inclined surface of the force-bearing block and the inclined surface of the backing plate are arranged face to face.
[0013] Compared with the prior art, the beneficial effects of this utility model are:
[0014] By cooperating with the threaded rod, slider and limiting plate, after the pump casing is fitted onto multiple pressure plates, the limiting plate can be controlled to move downward and abut against the top of the pump casing, thereby limiting the vertical movement of the pump casing and improving the qualification rate of the final product. Attached Figure Description
[0015] Figure 1 This is a frontal perspective structural diagram of a stainless steel pump casing spinning device for a water pump proposed in this utility model.
[0016] Figure 2 This is a top-view three-dimensional structural diagram of a stainless steel pump casing spinning device for a water pump proposed in this utility model;
[0017] Figure 3 This is a partial three-dimensional structural diagram of the drive motor, vertical rod, and module in a stainless steel pump casing spinning device for a water pump proposed in this utility model.
[0018] Figure 4 This is a partial three-dimensional structural diagram of the pressure plate in a stainless steel pump casing spinning device for a water pump proposed in this utility model.
[0019] Figure 5 for Figure 1 Enlarged view of the structure at point A in the middle;
[0020] Figure 6 for Figure 2 Enlarged view of the structure at point B in the middle.
[0021] In the diagram: 1. Body, 2. Drive motor, 3. Module, 4. Spring rod, 5. Pressure plate, 6. Telescopic cylinder, 7. Moving seat, 8. Pressure block, 9. Threaded rod, 10. Slider, 11. Limiting plate, 12. Limiting rod, 13. Servo motor, 14. Telescopic rod, 15. Vertical rod, 16. L-shaped plate, 17. Inclined plate, 18. Slide groove, 19. Connecting rod, 20. Force block, 21. Pressure plate, 22. Turntable, 23. Pressure ring. Detailed Implementation
[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0023] The terms used in this utility model, such as "upper", "lower", "left", "right", "middle" and "one", are only for clarity of description and are not intended to limit the scope of implementation of this utility model. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered as within the scope of implementation of this utility model.
[0024] Reference Figures 1-6 A stainless steel pump casing spinning device for a water pump includes a platform 1. An mounting groove is formed on the upper surface of the platform 1. A drive motor 2 is fixedly installed in the mounting groove. A module 3 is fixedly installed on the output shaft of the drive motor 2. Multiple mounting blocks are fixedly installed in a circumferential shape on the upper surface of the module 3. A spring rod 4 is fixedly installed on the surface of each mounting block. An arc-shaped pressure plate 5 is fixedly installed at one end of the spring rod 4. A mounting base is fixedly installed on the upper surface of the platform 1. A telescopic cylinder 6 is fixedly installed on the surface of the mounting base. A movable seat 7, fixedly connected to the drive shaft of the telescopic cylinder 6, is slidably provided on the upper surface of the telescopic cylinder 6. A rotating shaft is rotatably installed on the side of the movable seat 7 near the module 3. A pressure block 8 is fixedly installed at one end of the rotating shaft. The rotating shaft is controlled to rotate by a drive assembly. The drive assembly includes a servo motor 13 fixedly installed on the surface of the mounting base and a telescopic rod 14 fixedly installed at the end of the output shaft of the servo motor 13. An opening is formed on the upper surface of the movable seat 7. The output shaft of the servo motor 13 passes through the opening, and one end of the telescopic rod 14 is fixedly connected to the rotating shaft.
[0025] A threaded rod 9 is vertically and rotatably mounted on the upper surface of the platform 1. A slider 10 is threaded onto the threaded rod 9. A limit plate 11 is fixedly mounted on one end of the slider 10. The limit plate 11 is located directly above the module 3. The slider 10 is restricted from rotating by a limiting component, which includes a limiting rod 12 vertically and fixedly mounted on the upper surface of the platform 1. The slider 10 is slidably mounted on the limiting rod 12.
[0026] First, the pump casing to be spun and shaped is vertically fitted onto multiple pressure plates 5. During this process, the bottom end of the pump casing will first slide into contact with the top arc surface of the multiple pressure plates 5. Under the pressure of the arc surface, the multiple pressure plates 5 will move closer to each other, and the multiple spring rods 4 will also retract. After the pump casing is fitted onto the multiple pressure plates 5, the pump casing is controlled to move downward until the bottom end of the pump casing abuts against the module 3. At this time, the pump casing will be pressed and fixed by the multiple pressure plates 5. Then, the threaded rod 9 is rotated, and the slider 10 threaded onto the threaded rod 9 will move vertically along with the limiting plate 11 under the restriction of the limiting rod 12. The pump housing moves until the limiting plate 11 moves down to the bottom surface and abuts against the top of the pump housing. Then, the telescopic cylinder 6 is activated to control the pressing block 8 to abut against the surface of the pump housing to be shaped. Then, the servo motor 13 and the drive motor 2 are activated. The servo motor 13 will rotate the pressing block 8, and the output shaft of the drive motor 2 will rotate the module 3, multiple pressing plates 5 and the pump housing together. During the rotation of the pump housing, the surface to be shaped will slide into contact with the pressing block 8, thereby completing the shaping. In this process, due to the restriction of the limiting plate 11, the vertical movement of the pump housing can be restricted, thereby improving the qualification rate of the final product.
[0027] The surface of the limiting plate 11 has an annular opening, and a turntable 22 is rotatably installed inside the annular opening. The lower surface of the turntable 22 is bonded with a rubber anti-slip layer.
[0028] The turntable 22 can rotate within the annular opening. When the limiting plate 11 moves down until the anti-slip layer bonded to the lower surface of the turntable 22 abuts against the top of the cover, the cover can be controlled to rotate. The turntable 22 will rotate together with the cover under the pressure, avoiding excessive friction between the limiting plate 11 and the cover, which would cause the cover to jam. The rubber anti-slip layer has good elasticity and adhesion, which can prevent wear at the contact surface of the cover due to abutting against the turntable 22.
[0029] A vertical rod 15 is vertically mounted on the upper surface of module 3. Multiple L-shaped plates 16 are fixedly installed on the vertical rod 15 in a circumferential shape. A fixed plate is fixedly sleeved on the spring rod 4. An inclined plate 17 is fixedly installed on the top of the fixed plate. A groove 18 is opened on the surface of the inclined plate 17. The bottom ends of the multiple L-shaped plates 16 are slidably arranged in the multiple grooves 18. Multiple connecting rods 19 are fixedly installed on the lower surface of the vertical rod 15. Multiple sliding openings are opened on the upper surface of module 3 in a circumferential shape. The multiple connecting rods 19 are slidably inserted into the multiple sliding openings. The vertical rod 15 moves downward under the control of the pressing component. A retaining ring 23 is fixedly installed at the top of the vertical rod 15 through multiple connecting rods. The pressing component includes a force-bearing block 20 slidably sleeved on the output shaft of the drive motor 2 and a retaining plate 21 fixedly installed on the side wall of the moving seat 7. The longitudinal section of the retaining plate 21 is a right trapezoid, and the longitudinal section of the force-bearing block 20 is an isosceles trapezoid. The inclined surface of the force-bearing block 20 and the inclined surface of the retaining plate 21 are arranged face to face.
[0030] Before the cover is fitted onto the multiple pressure plates 5, the pressure plates 5 are not subjected to external pressure, so the multiple spring rods 4 will not retract, and the vertical rod 15 and the abutment ring 23 will be at their highest point. When the telescopic cylinder 6 moves the moving seat 7 towards the module 3, the inclined surface of the pressure plate 21 will slide into contact with the inclined surface of the force block 20. Under the pressure of the inclined surface, the force block 20 will move down along with the vertical rod 15 and the abutment ring 23. When the vertical rod 15 moves down, the multiple L-shaped plates 16 will also move down, and their bottom ends will slide in the multiple sliding grooves 18 respectively. At this time, the multiple spring rods 4... They will contract together, and the multiple pressure plates 5 will also move closer to each other. At this time, because the pressure plate 21 abuts against the force block 20, the vertical rod 15 cannot move upward, and the multiple spring rods 4 will not be stretched. This can prevent the pump casing from being fitted onto the multiple pressure plates 5. In the process of the multiple pressure plates 5 rotating with the pump casing, the spring rods 4 will be stretched by centrifugal force. Since there may be a small gap between the pump casing and the pressure plate 5, the pump casing will move slightly due to the thrust of the stretched spring rods 4 during rotation. This will cause the pump casing to no longer rotate around the output shaft of the drive motor 2, thus affecting the quality of the final product.
[0031] When the abutment plate 21 no longer abuts against the force-bearing block 20, and the pump casing is no longer fitted onto the multiple abutment plates 5, the multiple abutment plates 5 will quickly move and reset under the elastic potential energy of the multiple spring rods 4. The multiple spring rods 4 will stretch together, and the vertical rod 15 will also move upward and reset along with the abutment ring 23.
[0032] In this utility model, through the cooperation between the threaded rod 9, the slider 10 and the limiting plate 11, after the pump casing is fitted onto multiple pressure plates 5, the limiting plate 11 can be controlled to move downward and abut against the top of the pump casing, thereby achieving the effect of restricting the vertical movement of the pump casing and improving the qualification rate of the final product.
[0033] In this utility model, unless otherwise explicitly specified and limited, the terms "installation", "connection", "linking", "fixing", etc., should be interpreted broadly.
[0034] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. A stainless steel pump casing spinning device for a water pump, comprising a platform (1), characterized in that, The upper surface of the platform (1) is provided with an installation groove, and a drive motor (2) is fixedly installed in the installation groove. A module (3) is fixedly installed on the output shaft of the drive motor (2). Multiple installation blocks are fixedly installed on the upper surface of the module (3) in a circular shape. A spring rod (4) is fixedly installed on the surface of the installation block. An arc-shaped pressure plate (5) is fixedly installed at one end of the spring rod (4). An installation seat is fixedly installed on the upper surface of the platform (1). A telescopic cylinder (6) is fixedly installed on the surface of the installation seat. A movable seat (7) is slidably provided on the upper surface of the telescopic cylinder (6) and fixedly connected to the drive shaft of the telescopic cylinder (6). A rotating shaft is rotatably installed on the side of the movable seat (7) close to the module (3). A pressure block (8) is fixedly installed at one end of the rotating shaft. The rotating shaft is controlled to rotate by a drive assembly. A threaded rod (9) is vertically rotatably mounted on the upper surface of the platform (1). A slider (10) is threaded onto the threaded rod (9). A limiting plate (11) is fixedly mounted on one end of the slider (10). The limiting plate (11) is located directly above the module (3). The slider (10) is restricted from rotating by a limiting component.
2. The water pump stainless steel casing spinning device according to claim 1, characterized in that, The limiting component includes a limiting rod (12) that is vertically fixed on the upper surface of the platform (1), and the slider (10) is slidably sleeved on the limiting rod (12).
3. The water pump stainless steel casing spinning device according to claim 1, characterized in that, The drive assembly includes a servo motor (13) fixedly mounted on the surface of the mounting base and a telescopic rod (14) fixedly mounted on the end of the output shaft of the servo motor (13). The upper surface of the movable base (7) has an opening, the output shaft of the servo motor (13) passes through the opening, and one end of the telescopic rod (14) is fixedly connected to the rotating shaft.
4. The water pump stainless steel casing spinning device according to claim 1, characterized in that, The surface of the limiting plate (11) is provided with an annular opening, and a turntable (22) is rotatably installed inside the annular opening. The lower surface of the turntable (22) is bonded with a rubber anti-slip layer.
5. The water pump stainless steel casing spinning device according to claim 1, characterized in that, The upper surface of the module (3) is vertically provided with a vertical rod (15). The vertical rod (15) is circumferentially fixedly installed with multiple L-shaped plates (16). A fixed plate is fixedly sleeved on the spring rod (4). An inclined plate (17) is fixedly installed at the top of the fixed plate. A sliding groove (18) is opened on the surface of the inclined plate (17). The bottom ends of the multiple L-shaped plates (16) are respectively slidably arranged in the multiple sliding grooves (18). Multiple connecting rods (19) are fixedly installed on the lower surface of the vertical rod (15). The upper surface of the module (3) is circumferentially provided with multiple sliding openings. The multiple connecting rods (19) are respectively slidably inserted into the multiple sliding openings. The vertical rod (15) is controlled to move downward by a pressing component. A retaining ring (23) is fixedly installed at the top of the vertical rod (15) by multiple connecting rods.
6. The water pump stainless steel casing spinning device according to claim 5, characterized in that, The pressing component includes a force-bearing block (20) slidably sleeved on the output shaft of the drive motor (2) and a stop plate (21) fixedly installed on the side wall of the movable seat (7). The longitudinal section of the stop plate (21) is a right trapezoid, and the longitudinal section of the force-bearing block (20) is an isosceles trapezoid. The inclined surface of the force-bearing block (20) and the inclined surface of the stop plate (21) are arranged face to face.