Cutting device for umbrella-shaped sealing element of miniature water pump

By using a pneumatically driven slider and lifting frame structure, combined with pneumatic clamping and shearing devices, high-precision automated cutting of umbrella-shaped seals for miniature water pumps is achieved, solving the problems of low cutting accuracy and efficiency, and adapting to the rapid switching of multiple product specifications and environmental cleanliness requirements.

CN224183222UActive Publication Date: 2026-05-01DONGGUAN BEST AUTOMATION TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
DONGGUAN BEST AUTOMATION TECH CO LTD
Filing Date
2025-06-06
Publication Date
2026-05-01

AI Technical Summary

Technical Problem

Existing technologies struggle to achieve high-precision, automated cutting of umbrella-shaped seals for micro water pumps, resulting in high scrap rates, low production efficiency, and difficulty in adapting to rapid switching between multiple product specifications and environmental cleanliness requirements.

Method used

By employing a pneumatically driven slider and lifting frame structure, combined with pneumatic clamping and shearing devices, the entire process of positioning, clamping, cutting, and waste disposal of umbrella-shaped seals is automated, ensuring cutting accuracy and efficiency.

Benefits of technology

It achieves high-precision symmetrical cutting of umbrella-shaped seals, reduces scrap rate, improves production efficiency, supports rapid switching between multiple product specifications, and maintains a clean working environment.

✦ Generated by Eureka AI based on patent content.

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Abstract

The cutting device for the umbrella-shaped sealing element of the miniature water pump comprises a case; the stand column is fixed at the top end of the case; the transverse sliding rail is transversely fixed to one side of the top end of the stand column; the sliding block is connected to the transverse sliding rail in a sliding manner; the first air cylinder is installed at one end of the transverse sliding rail, and the free end of the first air cylinder is connected with the sliding block to drive the sliding block to transversely move; the lifting frame is vertically connected to the sliding block in a sliding manner; the second cylinder is mounted at the top end of the sliding block, and the free end of the second cylinder is connected with the lifting frame to drive the lifting frame to lift; the pneumatic clamps are mounted at the bottom end of the lifting frame and used for clamping workpieces; the automatic cutting device is novel in structure, ingenious in conception and capable of achieving continuous cycle operation, the automatic process of positioning, clamping, cutting and resetting can be completed through the device, batch production is supported, and cutting efficiency is improved.
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Description

Technical Field

[0001] This utility model relates to a cutting device, specifically a cutting device for umbrella-shaped seals of micro water pumps. Background Technology

[0002] In the manufacturing of miniature water pumps, umbrella-shaped seals are core functional components, and their cutting precision and production efficiency directly determine the pump's sealing performance, reliability, and scale of production. However, the traditional cutting methods commonly used in the industry (including manual operation and simple mechanical devices) are no longer suitable for modern production needs, revealing a series of technical bottlenecks that urgently need to be addressed.

[0003] From the perspective of the limitations of manual cutting, operators need to rely on experience to manually complete the positioning and cutting. Affected by subjective judgment, fatigue and other factors, it is difficult to ensure the symmetry and dimensional consistency of the circumferential cutting of umbrella-shaped seals, resulting in an increased scrap rate. At the same time, manual operation cannot achieve batch production, resulting in low production efficiency and high labor intensity. Especially when facing the switching of multiple specifications of products, the operation process needs to be frequently adjusted, which further exacerbates the production capacity bottleneck.

[0004] While traditional mechanical devices partially replace manual labor, they still have significant drawbacks: First, the positioning mechanism lacks precision, typically relying on manual knobs or coarse-grained slide rails to adjust the cutting position, lacking precise coordination between pneumatic drives and limit switches, making it difficult to meet the stringent requirements of miniaturized sealing components for lateral and vertical positioning accuracy. Second, automation is lagging; the clamping, cutting, and resetting processes of the workpiece require segmented manual intervention, failing to form a fully automated closed loop of "positioning-clamping-cutting-waste collection-resetting," thus hindering production efficiency. Third, the waste disposal design is lacking; debris generated during cutting scatters on the worktable, requiring machine shutdown for manual cleaning, which not only affects environmental cleanliness but also increases non-productive time costs.

[0005] As micro water pumps develop towards higher integration and higher reliability, the structural design of umbrella-shaped seals is becoming increasingly complex, posing higher-dimensional technical challenges to the cutting process: on the one hand, the circumferential uniform cutting requirements of umbrella-shaped structures (such as three-station symmetrical cutting) are difficult to achieve through traditional single-point or asymmetrical cutting methods, requiring equipment to have multi-directional synchronous operation capabilities; on the other hand, the flexible production mode of small batches and multiple varieties requires the device to be able to quickly switch positioning parameters and adapt to different specifications of workpieces, while the adjustment flexibility of traditional fixed structure equipment is insufficient, resulting in high changeover costs. Utility Model Content

[0006] In view of the above situation and to overcome the defects of the prior art, this utility model provides a micro water pump umbrella-shaped seal cutting device, which effectively solves the problems mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution: This utility model includes:

[0008] Chassis;

[0009] The column is fixed to the top of the chassis;

[0010] A transverse slide rail is fixed laterally to one side of the top of the column;

[0011] The slider is slidably connected to the transverse slide rail;

[0012] The first cylinder is installed at one end of the transverse slide rail, and its free end is connected to the slider to drive it to move laterally.

[0013] The lifting frame is vertically slidably connected to the slider;

[0014] The second cylinder is installed on the top of the slider, and its free end is connected to the lifting frame to drive its lifting and lowering.

[0015] Multiple pneumatic clamps are installed at the bottom of the lifting frame for clamping workpieces;

[0016] A fixing plate is provided on the chassis below the lifting frame, and a through hole is provided in the middle for the workpiece to pass through;

[0017] Multiple pneumatic shears are circumferentially distributed at the bottom end of the fixed plate, with the shear heads located inside the through holes;

[0018] The waste hopper is located below the cutting area of ​​the pneumatic shear.

[0019] Preferably, the transverse slide rail is provided with limit switches at both ends for triggering control when the slider moves to the limit position.

[0020] Preferably, the pneumatic clamps are equidistantly distributed at the bottom end of the lifting frame.

[0021] Preferably, a guide mechanism is provided between the slider and the lifting frame, the guide mechanism including a guide groove on the slider and a guide protrusion on the lifting frame.

[0022] Preferably, the number of pneumatic shears is three, and they are evenly distributed along the circumference of the through hole.

[0023] Preferably, the waste hopper has a detachable structure and a detachable waste outlet at the bottom.

[0024] Beneficial effects: Lateral positioning: The first cylinder drives the slider to reciprocate along the lateral slide rail. Combined with the limit protection of the limit switch, it achieves precise horizontal positioning, prevents the slider from derailing, and ensures equipment safety.

[0025] Vertical positioning: The second cylinder drives the lifting frame to rise and fall, controlling the distance between the pneumatic clamp and the pneumatic shears to meet different cutting height requirements and improve operational flexibility.

[0026] Precise execution by pneumatic components: The pneumatic clamp quickly clamps the workpiece through pneumatic control, ensuring the stability of the workpiece during cutting and avoiding cutting errors caused by displacement.

[0027] Three pneumatic shears are evenly distributed circumferentially within the through holes of the fixed plate. They start synchronously to achieve symmetrical cutting, ensuring consistent cutting edges and improving product quality.

[0028] Continuous cycle operation capability: The device can complete the automated process of "positioning → clamping → cutting → resetting", supporting mass production and improving cutting efficiency.

[0029] Convenience of waste disposal: The waste hopper has a detachable structure and a waste outlet at the bottom, which facilitates quick waste removal, keeps the working environment clean, and reduces downtime for maintenance. Attached Figure Description

[0030] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0031] Figure 1 This is a schematic diagram of the overall three-dimensional structure of this utility model;

[0032] Figure 2 This is a two-dimensional structural schematic diagram of the present invention from a second perspective;

[0033] Figure 3 This is a utility model Figure 1 A schematic diagram of the structure of A in the middle;

[0034] Figure 4 This is a utility model Figure 2 A schematic diagram of the structure of B in the middle;

[0035] The following are the labels in the diagram: 1. Chassis; 2. Column; 3. Horizontal slide rail; 4. Slider; 5. First cylinder; 6. Limit switch; 7. Lifting frame; 8. Second cylinder; 9. Pneumatic clamp; 10. Fixing plate; 11. Pneumatic shear; 12. Waste hopper. Detailed Implementation

[0036] The following is in conjunction with the appendix Figure 1-4 The specific embodiments of this utility model will be described in further detail.

[0037] Example 1, by Figure 1-4 This utility model provides a cutting device for a micro water pump umbrella-shaped seal, comprising:

[0038] Chassis 1;

[0039] Column 2 is fixed to the top of the chassis 1;

[0040] The transverse slide rail 3 is horizontally fixed to one side of the top of the column 2;

[0041] Slider 4 is slidably connected to the transverse slide rail 3;

[0042] The first cylinder 5 is installed at one end of the transverse slide rail 3, and its free end is connected to the slider 4 to drive it to move laterally.

[0043] The lifting frame 7 is vertically slidably connected to the slider 4;

[0044] The second cylinder 8 is installed on the top of the slider 4, and its free end is connected to the lifting frame 7 to drive it to rise and fall.

[0045] Multiple pneumatic clamps 9 are installed at the bottom of the lifting frame 7 for clamping workpieces;

[0046] A fixing plate 10 is provided on the housing 1 below the lifting frame 7, and a through hole is provided in the middle for the workpiece to pass through;

[0047] Multiple pneumatic shears 11 are circumferentially distributed at the bottom end of the fixed plate 10, and the shear heads are located inside the through holes;

[0048] Waste hopper 12 is located below the cutting area of ​​the pneumatic shear 11.

[0049] Chassis 1: Chassis 1 is the basic support structure of the entire device, providing a stable installation platform for other components and bearing various forces during device operation.

[0050] Column 2: Column 2 is vertically fixed to the top of the chassis 1, serving to connect the chassis and the horizontal slide rail, ensuring the stable installation of the horizontal slide rail 3 and maintaining the stability of the overall structure of the device.

[0051] Horizontal slide rail 3: The horizontal slide rail 3 is fixed horizontally to one side of the top of the column 2, providing a track for the horizontal movement of the slider 4, so that the slider 4 can slide smoothly on the slide rail and realize the horizontal position adjustment.

[0052] Slider 4: Slider 4 is slidably connected to the transverse slide rail 3. Driven by the first cylinder 5, it can reciprocate linearly along the transverse slide rail 3, driving the lifting frame 7 and other components to move laterally to adjust the cutting position.

[0053] First cylinder 5: The first cylinder 5 is installed at one end of the transverse slide rail 3, and its free end is connected to the slider 4. Through the expansion and contraction of the gas inside the cylinder, the slider 4 is driven to move precisely on the transverse slide rail 3, controlling the working position of the cutting device in the horizontal direction.

[0054] Limit switch 6: Limit switches 6 are provided at both ends of the transverse slide rail 3. When the slider 4 moves to the limit position, the limit switch 6 is triggered and sends a signal to the control system to stop the movement of the slider 4 in time, preventing the slider from derailing or the device from being damaged, and ensuring the safe operation of the equipment.

[0055] Lifting frame 7: The lifting frame 7 is vertically slidably connected to the slider 4. Under the action of the second cylinder 8, it can move vertically up and down along the slider 4 to adjust the height of the workpiece for cutting operations.

[0056] Second cylinder 8: The second cylinder 8 is installed at the top of the slider 4, and its free end is connected to the lifting frame 7. By extending and retracting the cylinder, the lifting frame 7 moves up and down, enabling the pneumatic clamp 9 to accurately clamp and release the workpiece, and control the distance between the workpiece and the pneumatic shear 11 to meet the cutting requirements.

[0057] Pneumatic clamps 9: Multiple pneumatic clamps 9 are equidistantly distributed at the bottom of the lifting frame 7, and the clamping and releasing of the workpiece are achieved through pneumatic control. During the cutting process, the pneumatic clamps 9 firmly hold the workpiece, ensuring that the workpiece remains stable during cutting and preventing cutting errors caused by workpiece movement.

[0058] Fixed plate 10: Fixed plate 10 is installed on the housing 1 below the lifting frame 7, and has a through hole in the middle for the workpiece to pass through. Fixed plate 10 is used to support and position the workpiece, so that the workpiece is kept in the correct position during cutting, and at the same time provides a mounting base for pneumatic shear 11.

[0059] Pneumatic shears 11: Three pneumatic shears 11 are evenly distributed circumferentially along the through hole in the middle of the fixed plate 10, with the shear head located inside the through hole. Driven by pneumatics, the pneumatic shears 11 can quickly and accurately cut the umbrella-shaped seal at the bottom of the workpiece. Their evenly distributed design ensures the symmetry and consistency of the cutting, improving the cutting quality.

[0060] Waste hopper 12: The waste hopper 12 is located below the cutting area of ​​the pneumatic shear 11 and is used to collect waste generated during the cutting process. The waste hopper 12 has a detachable structure and a detachable waste outlet at the bottom, which facilitates the cleaning and collection of waste and keeps the working environment clean.

[0061] Guiding mechanism: A guiding mechanism is provided between the slider 4 and the lifting frame 7, including a guide groove on the slider 4 and a guide protrusion on the lifting frame 7. The guiding mechanism can enhance the stability and accuracy of the lifting movement of the lifting frame 7, reduce swaying, and ensure the precision of the cutting operation.

[0062] Working principle: When using this utility model, the initial preparation is as follows: the device is connected to the power supply and air source, the control system is initialized, and each cylinder, pneumatic clamp and pneumatic shear is in standby state.

[0063] Lateral Positioning: The control system activates the first cylinder 5 according to the preset cutting position parameters. The free end of the first cylinder 5 extends and retracts, driving the slider 4 to slide along the lateral slide rail 3. The slider 4 drives the lifting frame 7, pneumatic clamp 9, and other components to move laterally synchronously. When the slider 4 moves to the preset cutting position, the first cylinder 5 stops. If the slider 4 moves to the limit position of the lateral slide rail 3, the limit switch 6 will be triggered, sending a signal to the control system to stop the slider 4 from moving, preventing derailment or damage to the device.

[0064] Workpiece clamping: The second cylinder 8 is activated, its free end extending downwards, pushing the lifting frame 7 downwards along the guide mechanism on the slider 4. The guide groove and guide protrusion in the guide mechanism cooperate to ensure the smooth descent of the lifting frame 7. When the pneumatic clamp 9 approaches the workpiece, the pneumatic clamp 9 is activated, clamping the umbrella-shaped sealing workpiece to be cut through pneumatic control, ensuring the workpiece remains stable during the cutting process.

[0065] Cutting operation: After the workpiece is clamped, multiple pneumatic shears 11 circumferentially distributed at the bottom of the fixed plate 10 are simultaneously activated. The shear heads of the pneumatic shears 11 are located in the through holes of the fixed plate 10, cutting the umbrella-shaped seals protruding from the bottom of the workpiece. Because the three pneumatic shears 11 are evenly distributed, the symmetry and consistency of the cutting are ensured, improving the cutting quality. Waste material generated during the cutting process falls into the waste hopper 12 below.

[0066] Waste collection and cleaning: Waste hopper 12 collects waste generated during cutting. Since waste hopper 12 has a detachable structure and a detachable waste outlet at the bottom, when waste accumulates to a certain level, waste hopper 12 can be easily disassembled or the waste outlet can be opened to clean up the waste and keep the working environment clean.

[0067] Reset and Cycle: After cutting, the pneumatic shear 11 resets, and the pneumatic clamp 9 releases the workpiece. The free end of the second cylinder 8 retracts, causing the lifting frame 7 to rise to its initial position. The first cylinder 5 drives the slider 4 back to its initial position, preparing for the next cutting operation. The entire device can operate continuously in a cycle according to the set program, achieving batch cutting.

[0068] Beneficial effects: Lateral positioning: The first cylinder 5 drives the slider 4 to reciprocate along the lateral slide rail 3. Combined with the limit protection of the limit switch 6, it achieves precise horizontal positioning, prevents the slider from derailing, and ensures equipment safety.

[0069] Vertical positioning: The second cylinder 8 drives the lifting frame 7 to rise and fall, controlling the distance between the pneumatic clamp 9 and the pneumatic shear 11 to meet different cutting height requirements and improve operational flexibility.

[0070] Precise execution by pneumatic components: The pneumatic clamp 9 quickly clamps the workpiece through pneumatic control, ensuring the stability of the workpiece during cutting and avoiding cutting errors caused by displacement.

[0071] Three pneumatic shears are evenly distributed around the circumference of the through holes in the fixed plate. They start synchronously to achieve symmetrical cutting, ensuring consistent cutting edges and improving product quality.

[0072] Continuous cycle operation capability: The device can complete the automated process of "positioning → clamping → cutting → resetting", supporting mass production and improving cutting efficiency.

[0073] Convenience of waste disposal: The waste hopper 12 has a detachable structure and a waste outlet at the bottom, which facilitates quick cleaning of waste, keeps the working environment clean, and reduces downtime for maintenance.

[0074] Those skilled in the art should connect all electrical components and their compatible power supplies in this case via wires. Appropriate controllers and encoders should be selected according to the actual situation to meet control requirements. The specific connection and control sequence should refer to the working principle described below, where the electrical components are connected in sequence. The detailed connection methods are well-known in the art. The following mainly introduces the working principle and process, and will not describe the electrical control further.

[0075] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A micro water pump umbrella seal trimming apparatus, characterized by: include: Chassis (1); The column (2) is fixed to the top of the chassis (1); A transverse slide rail (3) is fixed laterally to one side of the top of the column (2); Slider (4) is slidably connected to the transverse slide rail (3); The first cylinder (5) is installed at one end of the transverse slide rail (3), and its free end is connected to the slider (4) to drive it to move laterally; The lifting frame (7) is vertically slidably connected to the slider (4); The second cylinder (8) is installed on the top of the slider (4), and its free end is connected to the lifting frame (7) to drive it to rise and fall; Multiple pneumatic clamps (9) are installed at the bottom of the lifting frame (7) for clamping workpieces; A fixing plate (10) is provided on the housing (1) below the lifting frame (7), and a through hole is provided in the middle for the workpiece to pass through; Multiple pneumatic shears (11) are circumferentially distributed at the bottom end of the fixed plate (10), and the shear heads are located in the through holes; Waste hopper (12) is located below the cutting area of ​​the pneumatic shear (11).

2. The micro water pump umbrella-shaped seal cutting device according to claim 1, characterized in that: The transverse slide rail (3) is provided with limit switches (6) at both ends, which are used to trigger control when the slider (4) moves to the limit position.

3. The micro water pump umbrella seal trimming device of claim 2, wherein: The pneumatic clamps (9) are equidistantly distributed at the bottom of the lifting frame (7).

4. The micro water pump umbrella seal trimming device of claim 3, wherein: A guide mechanism is provided between the slider (4) and the lifting frame (7). The guide mechanism includes a guide groove on the slider (4) and a guide protrusion on the lifting frame (7).

5. The micro water pump umbrella-shaped seal cutting device according to claim 4, characterized in that: The number of pneumatic shears (11) is 3, and they are evenly distributed along the circumference of the through hole.

6. The micro water pump umbrella seal trimming device of claim 5, wherein: The waste hopper (12) is a detachable structure and has a detachable waste outlet at the bottom.