Pressing device for water meter cover and embedding nut
By designing a fully automatic water meter cover and nut pressing device, the automatic pressing of the nut and water meter cover is achieved by using a turntable and a robotic arm, which solves the problems of low efficiency and poor safety in the existing technology and improves work efficiency and safety.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CIXI BAOSHUN ELECTRICAL IND CO LTD
- Filing Date
- 2025-08-12
- Publication Date
- 2026-07-14
AI Technical Summary
The current pressing process for the water meter cover and the nut is semi-automated, which is inefficient and poses operational risks.
A fully automatic pressing device was designed, comprising a turntable, base, rotating body, feeding pipe, lifting plate, and pressing cylinder. Through the clockwise rotation of the turntable and the cooperation of the robotic arm, the automatic pressing of the nuts and water meter cover is realized.
The fully automated pressing of the water meter cover and the nut has been achieved, which significantly improves work efficiency and operational safety.
Smart Images

Figure CN224488280U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a pressing device for a water meter cover and a nut. Background Technology
[0002] The shape of the water meter cover is as follows Figure 5 , Figure 6 As shown, the shape of the nut is as follows Figure 7 , Figure 8 As shown, the nut has an internal thread in the middle. Pressing the nut into the mounting hole 181 of the water meter cover facilitates the connection between the water meter cover and other components. The pressing in the existing workshop is semi-automatic, which requires workers to manually place the nut and the water meter cover under the stamping equipment. Then, the pressing is completed in one step by the stamping equipment. The efficiency is not high. Moreover, the water meter cover and the nut are fed directly by hand, which poses certain operational dangers. Utility Model Content
[0003] To address the shortcomings mentioned above, this utility model provides a pressing device for a water meter cover and a nut.
[0004] To achieve the above objectives, this utility model provides a pressing device for a water meter cover and a nut, comprising:
[0005] A turntable, driven by a cam divider to rotate clockwise, has a feeding position, a stamping position and a discharging position along the rotation direction of the turntable;
[0006] The base is evenly distributed on the circumferential surface of the turntable. The base is annular and each annular surface is provided with positioning balls and compression springs.
[0007] A rotating body is disposed within the base. The rotating body forms a relative rotational structure with the base through a planar bearing. Ball grooves are uniformly machined on the circumferential surface of the rotating body, and the ball grooves correspond to the positioning balls.
[0008] The rotating body has a receiving cavity and a falcon groove machined in the middle. The falcon groove is located in the lower part of the receiving cavity. The upper edge of the rotating body is provided with columns, and the number of columns is the same as that of the positioning balls.
[0009] A feeding pipe is provided at the feeding position, and the outlet of the feeding pipe is located above the column;
[0010] A lifting plate is provided above the feeding position, and a stepper motor is provided on the lower side of the lifting plate. A tenon block is fixed to the shaft end of the stepper motor.
[0011] A stamping cylinder is located above the stamping position, and a pressure block is mounted on the shaft end of the stamping cylinder.
[0012] In this solution, the nut is fed by the feeding pipe, the water meter cover is picked up by the robot and placed at the stamping position, and the pressed parts are removed by the robot at the discharge position, achieving complete automation.
[0013] Preferably, the feed pipe has a vertical section at its outlet;
[0014] In the above technical solution, the feed pipe provides one nut at a time. The nut slides freely through the vertical guide of the vertical section and lands on the column. The size of the nut is larger than that of the column.
[0015] Preferably, there are four positioning balls and four columns, and the stepper motor has a step angle of ninety degrees.
[0016] In the above technical solution, a water meter cover is press-fitted with four nuts. Therefore, four positioning balls and columns are required. The maximum step angle is 90 degrees, but it can also be 30 degrees, 15 degrees, etc.
[0017] Preferably, the shape of the falcon joint block matches the falcon slot, and the cross-section of the falcon joint block is a square or a regular hexagon;
[0018] In the above technical solution, the square or regular hexagonal shape is easy to process. At the same time, the stepper motor can effectively transmit rotation to the rotating body, realizing the cutting of the nuts on multiple columns.
[0019] The advantages of this utility model over the prior art are as follows: the existing water meter cover and the nut are completed by semi-automatic stamping, while this solution provides a fully automatic pressing device, which greatly improves work efficiency and is safe and reliable. Attached Figure Description
[0020] Figure 1 This is a front view of a pressing device for a water meter cover and a nut according to the present invention.
[0021] Figure 2 This is a top view of a pressing device for a water meter cover and a nut according to the present invention;
[0022] Figure 3 for Figure 1 A magnified view of position B in the middle;
[0023] Figure 4 for Figure 1 A magnified view of position A in the middle;
[0024] Figure 5 This is a cross-sectional view of the water meter cover.
[0025] Figure 6 This is a top view of the water meter cover.
[0026] Figure 7 This is a cross-sectional view of the nut.
[0027] Figure 8 This is a top view of the nut.
[0028] In the diagram: 1. Cam divider; 2. Turntable; 3. Surface bearing; 4. Base; 5. Compression spring; 6. Positioning ball; 7. Rotating body; 71. Receiving cavity; 72. Tenon groove; 73. Ball groove; 8. Column; 9. Feed pipe; 91. Vertical section; 10. Lifting plate; 11. Stepper motor; 12. Tenon joint block; 13. Stamping cylinder; 14. Pressing block; 15. Feeding position; 16. Stamping position; 17. Discharge position; 18. Water meter cover; 181. Mounting hole; 19. Nut. Detailed Implementation
[0029] like Figures 1-8 As shown in the figure, a pressing device for a water meter cover and a nut according to an embodiment of the present invention includes a turntable 2, which is driven by a cam divider 1 to rotate clockwise. Along the rotation direction of the turntable 2, there are a feeding position 15, a stamping position 16, and a discharging position 17. A base 4 is evenly arranged on the circumferential surface of the turntable 2. The base 4 is annular and has four positioning balls 6 and a compression spring 5 on each annular surface. A rotating body 7 is disposed inside the base 4. The rotating body 7 forms a relative rotation structure with the base 4 through a plane bearing 3. Ball grooves 73 are evenly machined on the circumferential surface of the rotating body 7, and the ball grooves 73 correspond to the positioning balls 6. A receiving cavity 71 and a tenon groove 72 are machined in the middle of the rotating body 7. The receiving cavity 71 is used to receive the water meter cover 18. The tenon groove 72 is located at the lower part of the receiving cavity 71. Four columns 8 are provided on the upper edge of the rotating body 7. The size of the columns 8 is slightly smaller than the size of the insert nut 19. The feed pipe 9 is located at the feed position 15. The feed pipe 9 has a vertical section 91 at the outlet. The outlet of the feed pipe 9 is located above the columns 8. The feed pipe 9 provides one insert nut 19 at a time. The lifting plate 10 is located above the feed position 15. A stepper motor 11 is provided on the lower side of the lifting plate 10. The shaft end of the stepper motor 11 is fixed with a tenon block 12. The step angle is preferably 90 degrees. The stamping cylinder 13 is located above the stamping position 16. The shaft end of the stamping cylinder 13 is equipped with a pressure block 14. The shape of the tenon block 12 matches the tenon groove 72. The cross section of the tenon block 12 is square or regular hexagonal.
[0030] In this solution, the nut is fed by the feeding pipe, the water meter cover is picked up by a robot and placed at the stamping position, and the finished part is removed by the robot at the discharge position, achieving full automation. The existing water meter cover and nut are completed by semi-automatic stamping, while this solution provides a fully automatic pressing device, which greatly improves work efficiency and is safe and reliable.
[0031] In practical use, for ease of understanding of this utility model, it will be described in conjunction with the accompanying drawings;
[0032] See Figure 3 The positioning ball 6 is locked in the ball groove 73 under the action of the compression spring 5. At this time, the column and the feed pipe are facing each other. The feed pipe provides a nut, which slides down the inner wall of the feed pipe onto the column. The inner hole of the nut is positioned with the column. The lifting plate moves down so that the tenon block 12 is embedded in the tenon groove 72. The stepper motor rotates 90 degrees, driving the rotating body to rotate 90 degrees. After the positioning ball achieves precise positioning of the rotating body again, the feed pipe provides another nut to the column, thereby realizing the feeding of the nuts on the four columns.
[0033] See afterward. Figure 4 As the cam divider moves, the nut reaches the stamping position. Due to the action of the positioning ball, the rotating body does not rotate freely when it moves with the turntable. The robot arm places a water meter cover on the stamping position. The position of the mounting hole of the water meter cover is aligned with the position of the four nuts. The stamping cylinder moves down to press the nuts into the mounting holes to achieve an interference fit. The stamping cylinder can achieve the pressing by one action.
[0034] After pressing is completed, the water meter cover reaches the discharge position and can be removed by the robotic arm.
[0035] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. 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 pressing device for a water meter cover and a nut, characterized in that: include Turntable (2), which is driven by cam divider (1) to rotate clockwise, and has a feeding position (15), a stamping position (16) and a discharging position (17) along the rotation direction of the turntable (2); The base (4) is evenly arranged on the circumferential surface of the turntable (2). The base (4) is annular and is provided with positioning balls (6) and compression springs (5) on the annular surface. Rotating body (7), the rotating body (7) is disposed in the base (4), the rotating body (7) forms a relative rotation structure with the base (4) through a plane bearing (3), and ball grooves (73) are uniformly machined on the circumferential surface of the rotating body (7), the ball grooves (73) correspond to the positioning balls (6); The rotating body (7) has a receiving cavity (71) and a falcon groove (72) machined in the middle. The falcon groove (72) is located at the lower part of the receiving cavity (71). The upper edge of the rotating body (7) is provided with columns (8). The number of columns (8) is the same as that of the positioning balls (6). The feed pipe (9) is located at the feed position (15), and the outlet of the feed pipe (9) is located above the column (8). Lifting plate (10), the lifting plate (10) is located above the feeding position (15), the lower side of the lifting plate (10) is provided with a stepper motor (11), and the shaft end of the stepper motor (11) is fixed with a tenon block (12); A stamping cylinder (13) is located above the stamping position (16), and a pressure block (14) is mounted on the shaft end of the stamping cylinder (13).
2. The pressing device for a water meter cover and a nut according to claim 1, characterized in that: The feed pipe (9) has a vertical section (91) at its outlet.
3. The pressing device for a water meter cover and a nut according to claim 1, characterized in that: There are four positioning balls (6) and four columns (8), and the stepping angle of the stepper motor (11) is ninety degrees.
4. The pressing device for a water meter cover and a nut according to claim 1, characterized in that: The shape of the falcon joint block (12) matches the falcon groove (72), and the cross section of the falcon joint block (12) is a square or a regular hexagon.