A pump body and pump cover connecting bolt tightening mechanism

Abstract

The utility model discloses a kind of pump body pump cover connecting bolt tightening mechanisms, it is related to pump body assembly equipment technical field, including base, the upper end side of base is fixed with stand, the top of one side of stand is fixed with connecting seat, the lower end of connecting seat is connected with lifting assembly, lifting assembly is installed with servo motor in equidistance at annular distribution, the output end of each servo motor is connected with sleeve, torque sensor is installed between each sleeve and servo motor output end, the upper end of base is provided with sliding assembly, sliding assembly is connected with feeding assembly. In the utility model, multiple servo motors are synchronously operated with annular distribution, replace artificial or single shaft equipment, avoid the low efficiency problem of tightening one by one;Real-time feedback torque is matched with torque sensor, PLC controller can adjust servo motor output, ensure that each bolt torque reaches preset value, guarantee pump body sealing performance and operating stability, reduce the assembly error caused by torque deviation and fatigue of artificial operation.

Description

Technical Field

[0001] This utility model relates to the field of pump body assembly equipment technology, and in particular to a pump body and pump cover connecting bolt tightening mechanism. Background Technology

[0002] In the production and assembly of pump products, tightening the connecting bolts between the pump body and the pump cover is a critical process, and the consistency of the tightening torque directly affects the pump's sealing performance and operational stability. In existing technologies, bolt tightening often employs manual hand-held torque wrenches or single-axis tightening equipment. However, manual operation suffers from low efficiency, large torque deviations, and prolonged operation can easily lead to worker fatigue, increasing the risk of assembly errors. Furthermore, single-axis tightening equipment can only tighten one bolt at a time, resulting in poor adaptability. Therefore, this paper presents a bolt tightening mechanism for the pump body and pump cover connection. Utility Model Content

[0003] To address the shortcomings of existing technologies, this utility model provides a pump body and pump cover connecting bolt tightening mechanism. It employs multiple servo motors distributed in a ring to operate synchronously, replacing manual labor or single-axis equipment and avoiding the inefficiency of tightening bolts one by one. With the help of a torque sensor to provide real-time torque feedback, and a PLC controller to adjust the output of the servo motors, it ensures that the torque of each bolt reaches the preset value, thereby guaranteeing the sealing performance and operational stability of the pump body, reducing torque deviations caused by manual operation and assembly errors caused by fatigue, and overcoming the shortcomings of existing technologies.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: A pump body and pump cover connecting bolt tightening mechanism includes a base, a column fixed to one side of the upper end of the base, a connecting seat fixed to the top of one side of the column, a lifting assembly connected to the lower end of the connecting seat, servo motors evenly spaced and arranged in a ring on the lifting assembly, a sleeve connected to the output end of each servo motor, a torque sensor installed between each sleeve and the output end of each servo motor, a sliding assembly provided at the upper end of the base, a feeding assembly connected to the sliding assembly, a clamping assembly provided on the feeding assembly, and a PLC controller installed at one corner of the upper surface of the base. The torque sensor and the servo motors are electrically connected to the PLC controller.

[0005] As a further embodiment of this utility model: the lifting assembly includes a first electric push rod fixed to the lower end of the connecting seat, the lower end of the first electric push rod is connected to the lifting seat, and the first electric push rod is electrically connected to the PLC controller.

[0006] As a further improvement of this utility model, the servo motors are installed at equal intervals on the edge of the lifting platform.

[0007] As a further improvement of this utility model: the sliding component includes two slide rails symmetrically fixed to the upper end of the base, and a slider is engaged on each of the two slide rails.

[0008] As a further embodiment of this utility model: the feeding assembly includes a movable seat fixedly installed on the upper end of two sliders, a second electric push rod is installed on one outer wall of the movable seat, one end of the second electric push rod is fixed on the base, a placement groove is provided in the middle of the movable seat, and the second electric push rod is electrically connected to the PLC controller.

[0009] As a further embodiment of this utility model: the clamping assembly includes two third electric push rods respectively fixed on both sides of the top of the movable seat. Each of the two third electric push rods has a clamping block installed at one end opposite to the other. Pressure sensors are installed at the connection between the two clamping blocks and the third electric push rods. The pressure sensors and the third electric push rods are all electrically connected to the PLC controller.

[0010] As a further improvement of this utility model, the opposite sides of both clamping blocks are arc-shaped.

[0011] The beneficial effects of this utility model are as follows: 1. The system adopts a ring-distributed multi-servo motor synchronous operation to replace manual or single-axis equipment, avoiding the inefficiency of tightening one by one; with the torque sensor providing real-time torque feedback, the PLC controller can adjust the output of the servo motor to ensure that the torque of each bolt reaches the preset value, ensuring the pump body sealing performance and operational stability, and reducing assembly errors caused by torque deviation and fatigue from manual operation.

[0012] 2. The arc-shaped clamping block of the clamping component is adapted to the shape of the pump body. The pressure sensor provides feedback on the pressure, and the PLC controller controls the third electric push rod to ensure constant clamping force and prevent the pump body from shifting. The feeding component drives the moving seat to slide along the slide rail through the second electric push rod, which can accurately deliver the pump body to the tightening station and improve the overall automation level of assembly. Attached Figure Description

[0013] Figure 1 This is a first-view three-dimensional structural diagram of a pump body and pump cover connecting bolt tightening mechanism proposed in this utility model.

[0014] Figure 2 This is a second-view three-dimensional structural diagram of a pump body and pump cover connecting bolt tightening mechanism proposed in this utility model.

[0015] Figure 3 This is a third-view perspective three-dimensional structural diagram of a pump body and pump cover connecting bolt tightening mechanism proposed in this utility model.

[0016] Figure 4 This utility model proposes a mechanism for tightening bolts connecting the pump body and pump cover. Figure 1Enlarged structural diagram at point A in the middle.

[0017] In the diagram: 1. Base; 2. Slide rail; 3. Moving seat; 4. Lifting seat; 5. First electric push rod; 6. Connecting seat; 7. Servo motor; 8. Column; 9. Third electric push rod; 10. PLC controller; 11. Torque sensor; 12. Sleeve; 13. Slider; 14. Placement slot; 15. Second electric push rod; 16. Pressure sensor; 17. Clamping block. Detailed Implementation

[0018] 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.

[0019] Example 1, referring to Figure 1-4 A pump body and pump cover connecting bolt tightening mechanism includes a base 1, a column 8 fixed to one side of the upper end of the base 1, a connecting seat 6 fixed to the top of one side of the column 8, a lifting assembly connected to the lower end of the connecting seat 6, servo motors 7 evenly installed in a ring on the lifting assembly, a sleeve 12 connected to the output end of each servo motor 7, a torque sensor 11 installed between each sleeve 12 and the output end of each servo motor 7, a sliding assembly provided at the upper end of the base 1, a feeding assembly connected to the sliding assembly, a clamping assembly provided on the feeding assembly, a PLC controller 10 installed at one corner of the upper end face of the base 1, the torque sensor 11 and the servo motors 7 are electrically connected to the PLC controller 10, there are 5 servo motors 7, and the servo motors 7 are evenly installed at the edge of the lifting seat 4.

[0020] The lifting assembly includes a first electric push rod 5 fixed to the lower end of the connecting seat 6. The lower end of the first electric push rod 5 is connected to the lifting seat 4. The first electric push rod 5 is electrically connected to the PLC controller 10.

[0021] The sliding assembly includes two slide rails 2 symmetrically fixed to the upper end of the base 1, and a slider 13 is engaged on each of the two slide rails 2.

[0022] The feeding assembly includes a movable base 3 fixedly mounted on the upper end of two sliders 13. A second electric push rod 15 is mounted on one outer wall of the movable base 3. One end of the second electric push rod 15 is fixed on the base 1. A placement groove 14 is provided in the middle of the movable base 3. The second electric push rod 15 is electrically connected to the PLC controller 10.

[0023] The clamping assembly includes two third electric push rods 9 fixed on both sides of the top of the movable base 3. Each of the two third electric push rods 9 has a clamping block 17 installed at one end opposite to it. Pressure sensors 16 are installed at the connection between the two clamping blocks 17 and the third electric push rods 9. The pressure sensors 16 and the third electric push rods 9 are electrically connected to the PLC controller 10. The opposite sides of the two clamping blocks 17 are arc-shaped.

[0024] Working principle: The pump body is placed in the placement slot 14. The PLC controller 10 controls two third electric push rods 9 to push two clamping blocks 17 closer together, so that the two clamping blocks 17 clamp the pump body. The pressure sensor 16 detects the pressure applied to the pump body by the clamping blocks 17 and transmits the pressure information to the PLC controller 10. The PLC controller 10 controls the third electric push rods 9 to extend and retract according to the preset pressure value to ensure a constant clamping force. The PLC controller 10 controls the second electric push rod 15 to push the moving seat 3 below the lifting seat 4. Then, the PLC controller 10... The first electric push rod 5 is controlled to push the lifting seat 4 downward, so that each sleeve 12 is fitted onto the bolt. The servo motor 7 is started by the PLC controller 10, and the sleeve 12 is driven to rotate by the servo motor 7. During the rotation of the sleeve 12, the first electric push rod 5 pushes the lifting seat 4 to continue to descend until the bolt is tightened. The PLC controller 10 can adjust the output speed and torque of the corresponding servo motor 7 according to the torque value fed back by the torque sensor 11 in real time. When the tightening torque of a bolt reaches the preset threshold, the servo motor 7 stops, thereby realizing the connection between the pump body and the pump cover.

[0025] The above are merely preferred embodiments of this utility model, but the scope of protection of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this utility model, based on the technical solution and inventive concept of this utility model, should be included within the scope of protection of this utility model.

Claims

1. A pump body and pump cover connecting bolt tightening mechanism, comprising a base (1), characterized in that, A column (8) is fixed on one side of the upper end of the base (1). A connecting seat (6) is fixed on the top of one side of the column (8). A lifting assembly is connected to the lower end of the connecting seat (6). Servo motors (7) are installed at equal intervals in a ring on the lifting assembly. A sleeve (12) is connected to the output end of each servo motor (7). A torque sensor (11) is installed between each sleeve (12) and the output end of the servo motor (7). A sliding assembly is provided at the upper end of the base (1). A feeding assembly is connected to the sliding assembly. A clamping assembly is provided on the feeding assembly. A PLC controller (10) is installed at one corner of the upper surface of the base (1). The torque sensor (11) and the servo motor (7) are electrically connected to the PLC controller (10).

2. The pump body and pump cover connecting bolt tightening mechanism according to claim 1, characterized in that, The lifting assembly includes a first electric push rod (5) fixed at the lower end of the connecting seat (6), the lower end of the first electric push rod (5) is connected to the lifting seat (4), and the first electric push rod (5) is electrically connected to the PLC controller (10).

3. The pump body and pump cover connecting bolt tightening mechanism according to claim 1, characterized in that, The servo motors (7) are installed at equal intervals on the edge of the lifting seat (4).

4. The pump body and pump cover connecting bolt tightening mechanism according to claim 1, characterized in that, The sliding assembly includes two slide rails (2) symmetrically fixed to the upper end of the base (1), and a slider (13) is engaged on each of the two slide rails (2).

5. The pump body and pump cover connecting bolt tightening mechanism according to claim 4, characterized in that, The feeding assembly includes a movable seat (3) fixedly installed on the upper end of two sliders (13). A second electric push rod (15) is installed on one side outer wall of the movable seat (3). One end of the second electric push rod (15) is fixed on the base (1). A placement groove (14) is provided in the middle of the movable seat (3). The second electric push rod (15) is electrically connected to the PLC controller (10).

6. The pump body and pump cover connecting bolt tightening mechanism according to claim 5, characterized in that, The clamping assembly includes two third electric push rods (9) fixed on both sides of the top of the movable seat (3). Each of the two third electric push rods (9) has a clamping block (17) installed at one end opposite to the other. A pressure sensor (16) is installed at the connection between the two clamping blocks (17) and the third electric push rods (9). The pressure sensor (16) and the third electric push rods (9) are electrically connected to the PLC controller (10).

7. The pump body and pump cover connecting bolt tightening mechanism according to claim 6, characterized in that, Both of the clamps (17) are arc-shaped on opposite sides.

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