Secondary positioning mechanism for micro water pump cup body
By using a multi-guided structure and a pneumatically driven secondary positioning mechanism for the micro water pump cup, the problems of insufficient positioning accuracy and low automation in traditional systems are solved, achieving efficient cup positioning and assembly, and meeting the needs of modern production.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- DONGGUAN BEST AUTOMATION TECH CO LTD
- Filing Date
- 2025-07-02
- Publication Date
- 2026-06-26
AI Technical Summary
Traditional micro water pumps suffer from insufficient positioning accuracy of the piston cup and low degree of automation, resulting in poor sealing performance and low production efficiency.
The micro water pump cup body secondary positioning mechanism adopts a multi-guide structure. It uses horizontal and vertical cylinders to drive the pneumatic clamp for precise positioning. Combined with the guiding effect of the conical column matching the through hole of the cup body, it realizes automated clamping, transfer and positioning.
It significantly improves positioning accuracy and production efficiency, ensuring that the leather cup body is assembled in a precise posture, reducing manual intervention and adapting to the needs of modern automated production lines.
Smart Images

Figure CN224407427U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a positioning mechanism, specifically a secondary positioning mechanism for the piston cup of a micro water pump. Background Technology
[0002] In the manufacturing process of miniature water pumps, the piston cup is a key component, and its positioning accuracy directly affects the pump's sealing performance and overall assembly quality. Traditional piston cup positioning methods typically rely on manual operation or simple mechanical fixtures, which have the following significant drawbacks:
[0003] Insufficient positioning accuracy: Manual positioning is easily affected by operational errors, resulting in deviations in the posture of the diaphragm cup, which in turn causes sealing failure or wear of parts during subsequent assembly; simple mechanical fixtures lack dynamic guiding structures and are difficult to adapt to the precise docking requirements between the diaphragm cup through hole and the assembly station.
[0004] Low level of automation: Traditional processes require frequent manual handling of workpieces, which is labor-intensive and inefficient, and cannot meet the pace requirements of modern automated production lines. Especially in mass production, manual intervention can easily lead to capacity bottlenecks. Utility Model Content
[0005] In view of the above situation and to overcome the defects of the prior art, this utility model provides a secondary positioning mechanism for the micro water pump cup body, which effectively solves the problems mentioned in the background art.
[0006] To achieve the above objectives, this utility model provides the following technical solution: This utility model includes:
[0007] frame;
[0008] A transverse drive mechanism, fixed to the frame, includes a transverse slide rail, a transverse cylinder, and a transverse slider driven by it.
[0009] A vertical drive mechanism, mounted on the horizontal slider, includes a vertical cylinder and a vertical slider driven by it.
[0010] Multiple pneumatic clamps are equidistantly installed at the bottom end of the vertical slider to hold the leather cup body;
[0011] The positioning component, fixed to the frame and located at the end of the pneumatic clamp's moving path, includes a bracket, a ring mounted on the top of the bracket, and a plurality of conical columns fixed in an equidistant array inside the ring.
[0012] In this process, the horizontal cylinder drives the pneumatic clamp to move horizontally above the cup body, the vertical cylinder drives the pneumatic clamp to descend and grab the cup body and then rises, and then moves horizontally to place the cup body onto the conical column to complete the secondary positioning.
[0013] Preferably, the taper of the conical column matches the diameter of the through hole in the cup body, with the top diameter of the conical column being smaller than the diameter of the through hole and the bottom diameter being larger than the diameter of the through hole.
[0014] Preferably, the clamping end of the pneumatic clamp is provided with a V-shaped guide groove, the inner contour of which is adapted to the shape of the outer edge of the cup.
[0015] Preferably, the ring is mounted on the top of the bracket by an adjustable bolt, and the horizontal height and tilt angle of the ring are adjustable.
[0016] Preferably, the surface of the tapered column is polished to a smooth surface for better guidance when it is in the cup body.
[0017] Preferably, the top of the conical column is an arc-shaped surface.
[0018] Beneficial effects: Multiple guiding structure: The tapered column of the positioning component matches the diameter of the through hole of the cup body (the top diameter is smaller than the hole diameter, and the bottom diameter is larger than the hole diameter). The surface is smooth and the top is an arc surface. When fitting in, the tapered guiding effect significantly improves the accuracy of secondary positioning and ensures that the cup body is assembled in a precise posture.
[0019] Fully pneumatically driven: The horizontal cylinder, vertical cylinder and pneumatic clamp are all pneumatically controlled to realize the automated cycle of clamping, transferring and positioning actions, reducing manual intervention and improving production efficiency.
[0020] The modular design of the transverse drive mechanism (including transverse slide rail, transverse cylinder, and transverse slider), vertical drive mechanism (including vertical cylinder and vertical slider), and positioning components (including bracket, ring, and conical column) facilitates installation, debugging, and maintenance. Attached Figure Description
[0021] 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:
[0022] Figure 1 This is a schematic diagram of the overall three-dimensional structure of this utility model;
[0023] Figure 2 This is a utility model Figure 1 A schematic diagram of the structure of A in the middle;
[0024] Figure 3 This is a utility model Figure 2 A magnified schematic diagram of the central part of the structure;
[0025] Figure 4 This is a utility model Figure 1 A magnified schematic diagram of a portion of the middle-skin bowl body;
[0026] The following are the labels in the diagram: 1. Frame; 2. Vibrating feeder; 3. Discharge track; 4. Leather cup body; 5. Horizontal slide rail; 6. Horizontal cylinder; 7. Horizontal slider; 8. Vertical cylinder; 9. Vertical slider; 10. Pneumatic clamp; 11. Support; 12. Ring; 13. Conical column. Detailed Implementation
[0027] The following is in conjunction with the appendix Figure 1-4 The specific embodiments of this utility model will be described in further detail.
[0028] Example 1, by Figure 1-4 This utility model provides a secondary positioning mechanism for the piston cup of a miniature water pump, comprising:
[0029] Rack 1;
[0030] A transverse drive mechanism, fixed on the frame 1, includes a transverse slide rail 5, a transverse cylinder 6, and a transverse slider 7 driven by it.
[0031] A vertical drive mechanism, mounted on the horizontal slider 7, includes a vertical cylinder 8 and a vertical slider 9 driven by it.
[0032] Multiple pneumatic clamps 10 are equidistantly installed at the bottom end of the vertical slider 9 to clamp the leather cup body 4;
[0033] The positioning component, fixed on the frame 1 and located at the end of the movement path of the pneumatic clamp 10, includes a bracket 11, a ring 12 installed on the top of the bracket, and a plurality of conical columns 13 fixed in an equidistant array inside the ring.
[0034] The horizontal cylinder 6 drives the pneumatic clamp 10 to move horizontally above the cup body 4, and the vertical cylinder 8 drives the pneumatic clamp 10 to descend and grab the cup body 4 and rise. Then, the cup body 4 is placed on the conical column 13 by horizontal movement to complete the secondary positioning.
[0035] Frame 1: As the basic support structure of the entire positioning mechanism, it provides a stable platform for the installation and operation of other components.
[0036] Horizontal drive mechanism: Fixed on the frame 1, it consists of a horizontal slide rail 5, a horizontal cylinder 6, and a horizontal slider 7. The horizontal cylinder 6 drives the horizontal slider 7 to move horizontally on the horizontal slide rail 5, thereby driving the vertical drive mechanism and pneumatic clamp 10 mounted on the horizontal slider 7 to adjust their horizontal position, so that the pneumatic clamp 10 can move accurately above the leather cup body 4.
[0037] Vertical drive mechanism: mounted on the horizontal slider 7, including a vertical cylinder 8 and a vertical slider 9. The vertical cylinder 8 drives the vertical slider 9 to move up and down in the vertical direction, thereby controlling the lifting and lowering of the pneumatic clamp 10 to realize the clamping and placement operation of the leather cup body 4.
[0038] Pneumatic clamp 10: Equivalently installed at the bottom end of the vertical slider 9, its clamping end is provided with a V-shaped guide groove, the inner contour of the groove is adapted to the shape of the outer edge of the cup body 4. Through pneumatic control, the pneumatic clamp 10 can stably clamp the cup body 4, and the V-shaped guide groove can play a good positioning and guiding role for the cup body 4, ensuring the accuracy of clamping.
[0039] Positioning Components: Fixed to the frame 1 and located at the end of the movement path of the pneumatic clamp 10, these components consist of a bracket 11, a ring 12, and multiple tapered columns 13. The bracket 11 supports the ring 12, which is mounted on the top of the bracket 11 via adjustable bolts. The ring 12's horizontal height and tilt angle are adjustable to accommodate the positioning requirements of different sized cup holders 4. Multiple tapered columns 13 are equidistantly arrayed and fixed inside the ring 12. Their taper matches the diameter of the through-hole in the cup holder 4, with the top diameter smaller than the through-hole diameter and the bottom diameter larger. Furthermore, the surface of the tapered columns 13 is polished to a smooth finish, and the top is designed as an arc surface. This provides good guidance when the cup holder 4 is fitted, ensuring accurate placement of the cup holder 4 onto the tapered columns 13 for secondary positioning.
[0040] Working principle: When this utility model is used, during the feeding stage of the leather cup body 4: the vibrating feeder 2 is started, and through its own vibration, the leather cup body 4 is transported in an orderly manner to the discharge track 3, so that the leather cup body 4 is arranged in a fixed posture and direction, which prepares for the subsequent clamping operation.
[0041] Clamping preparation stage: The horizontal cylinder 6 starts working, pushing the horizontal slider 7 to move horizontally on the horizontal slide rail 5, which in turn drives the vertical drive mechanism and pneumatic clamp 10 mounted on it to move together. When the pneumatic clamp 10 moves to directly above the leather cup body 4, the horizontal cylinder 6 stops working, completing the horizontal position adjustment of the pneumatic clamp 10.
[0042] During the gripping stage of the cup body 4: The vertical cylinder 8 drives the vertical slider 9 to descend vertically, causing the pneumatic clamp 10 to gradually approach the cup body 4. When the pneumatic clamp 10 descends to the appropriate position, it initiates the gripping action via pneumatic control. The V-shaped guide groove at its gripping end matches the outer edge shape of the cup body 4, stably holding the cup body 4. Subsequently, the vertical cylinder 8 drives the vertical slider 9 to rise, causing the pneumatic clamp 10 and the gripped cup body 4 to move upward together, disengaging the cup body 4 from the discharge track 3.
[0043] During the transfer stage of the leather cup body 4: the horizontal cylinder 6 is activated again, driving the horizontal slider 7 to move the vertical drive mechanism, pneumatic clamp 10 and the gripped leather cup body 4 horizontally towards the positioning component until it is directly above the positioning component.
[0044] Secondary positioning stage: The vertical cylinder 8 drives the vertical slider 9 to descend, gradually bringing the cup body 4 closer to the positioning assembly. Because the taper of the conical column 13 in the positioning assembly matches the through-hole diameter of the cup body 4, and the top diameter is smaller than the through-hole diameter while the bottom diameter is larger, and the surface of the conical column 13 is smooth with an arc-shaped top, when the cup body 4 descends, guided by the conical column 13, the through-hole of the cup body 4 can accurately fit into the conical column 13 to achieve the required assembly posture. As the vertical slider 9 continues to descend until the cup body 4 is completely fitted onto the conical column 13, the secondary positioning is completed. At this point, the vertical cylinder 8 drives the vertical slider 9 to rise, and the pneumatic clamp 10 releases the cup body 4 and returns to its initial position, awaiting the next clamping operation.
[0045] Beneficial effects: Multiple guiding structure: The tapered column 13 of the positioning component matches the diameter of the through hole of the cup body 4 (the top diameter is smaller than the hole diameter, and the bottom diameter is larger than the hole diameter). The surface is smooth and the top is an arc surface. When fitting in, the tapered guiding effect significantly improves the accuracy of secondary positioning and ensures that the cup body 4 completes the assembly preparation in a precise posture.
[0046] Fully pneumatic drive: The horizontal cylinder 6, the vertical cylinder 8, and the pneumatic clamp 10 are all pneumatically controlled to achieve automated cycles of clamping, transferring, and positioning, reducing manual intervention and improving production efficiency.
[0047] The modular design of the transverse drive mechanism (including transverse slide rail 5, transverse cylinder 6, and transverse slider 7), the vertical drive mechanism (including vertical cylinder 8 and vertical slider 9), and the positioning components (including bracket 11, ring 12, and conical column 13) facilitates installation, debugging, and maintenance.
[0048] 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 secondary positioning mechanism for the piston cup of a miniature water pump, characterized in that, include: Rack (1); The transverse drive mechanism, fixed on the frame (1), includes a transverse slide rail (5), a transverse cylinder (6), and a transverse slider (7) driven by it. A vertical drive mechanism is mounted on the horizontal slider (7) and includes a vertical cylinder (8) and a vertical slider (9) driven by it. Multiple pneumatic clamps (10) are equidistantly installed at the bottom of the vertical slider (9) to hold the leather cup body (4). The positioning component is fixed on the frame (1) and located at the end of the movement path of the pneumatic clamp (10), and includes a bracket (11), a ring (12) installed on the top of the bracket, and a plurality of conical columns (13) fixed in an equidistant array inside the ring. The horizontal cylinder (6) drives the pneumatic clamp (10) to move horizontally above the cup body (4), the vertical cylinder (8) drives the pneumatic clamp (10) to descend and clamp the cup body (4) and rise, and then the cup body (4) is placed on the conical column (13) by the horizontal movement to complete the secondary positioning.
2. The secondary positioning mechanism of the micropump cup body according to claim 1, characterized in that: The taper of the tapered column (13) matches the diameter of the through hole of the cup body (4). The diameter of the top end of the tapered column (13) is smaller than the diameter of the through hole, and the diameter of the bottom end is larger than the diameter of the through hole.
3. The secondary positioning mechanism of the micropump cup body according to claim 2, characterized in that: The pneumatic clamp (10) has a V-shaped guide groove at its clamping end, and the inner contour of the groove is adapted to the outer edge shape of the leather cup body (4).
4. The secondary positioning mechanism of the micropump cup body according to claim 3, characterized in that: The ring (12) is installed on the top of the bracket (11) by an adjustable bolt. The horizontal height and tilt angle of the ring (12) are adjustable.
5. The secondary positioning mechanism of the micropump cup body according to claim 4, characterized in that: The surface of the tapered column (13) is polished to a smooth surface, which provides better guidance when it is in the leather cup body (4).
6. The secondary positioning mechanism of the micropump cup body according to claim 5, characterized in that: The top of the conical column (13) is set as an arc surface.