Electromagnetic valve core automatic assembly knob fastening mechanism and method

Abstract

The application discloses a kind of electromagnetic valve core automatic assembly knob fastening mechanism and method, mechanism includes assembly table, magnetism pipe feeding turnover mechanism, valve body feeding mechanism, magnetism pipe insertion mechanism, transfer mechanism and knob fastening mechanism, first assembly station and second assembly station are equipped on assembly table;Magnetism pipe feeding turnover mechanism is used to transfer magnetism pipe to first assembly station after being turned over;Valve body feeding mechanism is used to transfer valve body to first assembly station;Magnetism pipe insertion mechanism is used to insert magnetism pipe with valve body on first assembly station;Transfer mechanism is used to transfer magnetism pipe and valve body after insertion to second assembly station;Knob fastening mechanism is arranged above second assembly station, used to screw fasten magnetism pipe and valve body after insertion.The method includes feeding turnover, valve body feeding, insertion, transfer, screwing and finished product removal.The application realizes magnetism pipe and valve body fully automatic assembly, improves production efficiency and assembly quality consistency.

Description

Technical Field

[0001] This invention relates to the field of automatic assembly equipment for electromagnetic valve cores, and specifically to an automatic assembly knob fastening mechanism and method for electromagnetic valve cores. Background Technology

[0002] During the manufacturing process of the solenoid valve core, the magnetic tube needs to be assembled and connected to the valve body. The magnetic tube is a tubular part made of metal, and the valve body has a mating end that matches the magnetic tube. During assembly, the connecting end of the magnetic tube is first inserted into the mating end of the valve body, and then the two are screwed together to form a firm fit.

[0003] Currently, the assembly of the magnetic tube and valve body mainly relies on manual labor. Operators need to manually pick up the magnetic tube and valve body, flip the magnetic tube so that the connecting end faces down, align it with the valve body's mating end, insert it, and then use a tightening tool to screw the magnetic tube and valve body together. The entire assembly process requires operators to frequently perform multiple actions such as flipping, aligning, inserting, and tightening, resulting in high labor intensity, cumbersome operation, and low production efficiency. Furthermore, manual operation suffers from poor alignment accuracy and inconsistent tightening force, easily leading to improper insertion of the magnetic tube or excessive tightening torque damaging parts, affecting the consistency and stability of product assembly quality. Therefore, there is an urgent need for automated assembly equipment that can automatically insert and screw-tighten the magnetic tube and valve body. Summary of the Invention

[0004] The purpose of this invention is to provide an automatic assembly knob fastening mechanism and method for electromagnetic valve cores, in order to solve the technical problems of low efficiency, poor alignment accuracy, and unstable tightening quality in the existing manual assembly of magnetic tubes and valve bodies. This invention enables automatic feeding, flipping, insertion, transfer, and screw fastening of magnetic tubes and valve bodies, thereby improving assembly efficiency and quality consistency.

[0005] To achieve the above objectives, the present invention provides the following technical solution: An automatic assembly knob fastening mechanism for an electromagnetic valve core includes an assembly table, a magnetic tube feeding and flipping mechanism, a valve body feeding mechanism, a magnetic tube insertion mechanism, a transfer mechanism, and a knob fastening mechanism. The assembly table has a first assembly station and a second assembly station. The magnetic tube feeding and flipping mechanism is used to flip the magnetic tube and transfer it to the first assembly station. The valve body feeding mechanism is used to transfer the valve body to the first assembly station. The magnetic tube insertion mechanism is used to insert the magnetic tube into the valve body located at the first assembly station. The transfer mechanism is used to transfer the inserted magnetic tube and valve body from the first assembly station to the second assembly station. The knob fastening mechanism is located above the second assembly station and is used to screw fasten the inserted magnetic tube to the valve body.

[0006] Furthermore, the magnetic tube feeding and flipping mechanism includes a flipping drive assembly, a first lifting drive assembly, and a first pneumatic gripper. The first pneumatic gripper is mounted on the flipping drive assembly, which is mounted on the first lifting drive assembly. The first pneumatic gripper is used to grip the magnetic tube.

[0007] Furthermore, the valve body feeding mechanism includes a first horizontal drive assembly, a second lifting drive assembly, and a second pneumatic gripper. The second pneumatic gripper is mounted on the second lifting drive assembly, and the second lifting drive assembly is mounted on the first horizontal drive assembly.

[0008] Furthermore, the magnetic tube insertion mechanism includes a second horizontal drive assembly, a third lifting drive assembly, a first rotary drive component, and a magnetic adsorption head. The magnetic adsorption head is located below the third lifting drive assembly, and the first rotary drive component is located on the third lifting drive assembly with its output end connected to the magnetic adsorption head via a coupling. The magnetic adsorption head is a tubular structure used to be sleeved on the outside of the magnetic tube and to adsorb and grasp it.

[0009] Furthermore, the transfer mechanism includes a third horizontal drive assembly, a fourth lifting drive assembly, and a third pneumatic gripper, with the third pneumatic gripper mounted on the fourth lifting drive assembly and the fourth lifting drive assembly mounted on the third horizontal drive assembly.

[0010] Furthermore, the knob fastening mechanism includes a fifth lifting drive assembly, a second rotary drive component, and a tightening sleeve. The second rotary drive component is disposed on the fifth lifting drive assembly, and the tightening sleeve is connected to the output end of the second rotary drive component via a coupling. The tightening sleeve is a tubular structure used to be sleeved on the outside of the magnetic tube and to screw the magnetic tube to the valve body.

[0011] Furthermore, a placement station is also provided on the assembly table, which is located on one side of the second assembly station.

[0012] Furthermore, at least three second pneumatic grippers are provided, with each second pneumatic gripper spaced apart, and used for sequential transfer of the valve body between different workstations.

[0013] Furthermore, at least three third pneumatic grippers are provided, with each third pneumatic gripper spaced apart. At least one third pneumatic gripper is used to transfer the magnetic tube and valve body assembly from the first assembly station to the second assembly station, at least one third pneumatic gripper is used to transfer the finished product from the second assembly station to the placement station, and at least one third pneumatic gripper is used to transfer the finished product away. Beneficial effects

[0014] This invention provides an electromagnetic valve core electromagnetic energizing material feeding and discharging mechanism, which has the following advantages compared with the prior art: 1. This invention sets up a first assembly station and a second assembly station on the assembly table. With the coordinated work of the magnetic tube feeding and flipping mechanism, the valve body feeding mechanism, the magnetic tube insertion mechanism, the transfer mechanism and the knob fastening mechanism, the fully automated assembly of the magnetic tube and the valve body from automatic feeding, flipping, insertion to screw fastening is realized. It completely replaces manual operation and greatly improves assembly efficiency and quality consistency.

[0015] 2. The magnetic tube feeding and flipping mechanism uses a flipping drive assembly to drive the first pneumatic gripper to flip the magnetic tube from a top-down orientation to a bottom-up orientation, preparing it for subsequent insertion and assembly. The pneumatic gripper grips the magnetic tube firmly and quickly.

[0016] 3. The valve body loading mechanism uses a first horizontal drive assembly and a second lifting drive assembly to collaboratively drive the second pneumatic gripper to move in both horizontal and vertical directions, enabling precise transfer of the valve body from the conveyor line to the first assembly station. The second pneumatic gripper has at least three grippers, allowing for simultaneous sequential transfer of the valve body between different stations, thus improving loading efficiency.

[0017] 4. The magnetic tube insertion mechanism uses a magnetic adsorption head to adsorb the magnetic tube. The magnetic adsorption head is a tubular structure that can be sleeved on the outside of the magnetic tube, providing strong adsorption force and stable gripping. The first rotary drive unit drives the magnetic adsorption head to rotate through a coupling, allowing the magnetic adsorption head to screw into the outside of the magnetic tube. After sleeve insertion, it is electrically activated for adsorption, achieving reliable gripping and insertion of the magnetic tube.

[0018] 5. The transfer mechanism drives the third pneumatic gripper via the third horizontal drive assembly and the fourth lifting drive assembly to transfer the inserted magnetic tube and valve body assembly from the first assembly station to the second assembly station. At least three third pneumatic grippers are provided, enabling simultaneous assembly transfer, finished product placement, and finished product removal, thus improving transfer efficiency.

[0019] 6. The knob fastening mechanism drives the tightening sleeve to descend and fit into the outside of the magnetic tube through the fifth lifting drive component. The second rotation drive component drives the tightening sleeve to rotate through the coupling, and screws the connection end of the magnetic tube to the docking end of the valve body. The tightening torque can be precisely controlled to ensure consistent tightening quality and avoid being too tight or too loose.

[0020] 7. Each mechanism adopts a modular design, and each drive component adopts pneumatic drive or servo drive. The structure is compact, the movements are coordinated, and it is easy to integrate into the automated production line. It has strong versatility and maintainability. Attached Figure Description

[0021] Figure 1 This is a first-view schematic diagram of the overall structure of the electromagnetic valve core automatic assembly knob fastening mechanism of the present invention. Figure 2This is a second-view schematic diagram of the overall structure of the electromagnetic valve core automatic assembly knob fastening mechanism of the present invention. Figure 3 This is a second-view schematic diagram of the overall structure of the electromagnetic valve core automatic assembly knob fastening mechanism of the present invention. Figure 4 This is a three-dimensional structural diagram of the assembly table of the present invention; Figure 5 This is a three-dimensional structural schematic diagram of the magnetic tube feeding and flipping mechanism of the present invention; Figure 6 This is a schematic diagram of the front view structure of the magnetic tube feeding and flipping mechanism of the present invention before flipping. Figure 7 This is a schematic diagram of the main structure of the magnetic tube feeding and flipping mechanism of the present invention after flipping. Figure 8 This is a three-dimensional structural diagram of the valve body feeding mechanism of the present invention; Figure 9 This is a schematic diagram of the main structure of the valve body feeding mechanism of the present invention; Figure 10 This is a three-dimensional structural schematic diagram of the magnetic tube insertion mechanism of the present invention; Figure 11 This is a schematic diagram of the main structure of the magnetic tube insertion mechanism of the present invention; Figure 12 This is a three-dimensional structural schematic diagram of the transfer mechanism of the present invention; Figure 13 This is a top view of the transfer mechanism of the present invention; Figure 14 This is a three-dimensional structural diagram of the knob fastening mechanism of the present invention; Figure 15 This is a side view of the knob fastening mechanism of the present invention. Figure 16 This is a schematic diagram of the disassembled assembly structure of the valve body and the magnetic tube of the present invention; Figure 17 This is a flowchart of the automatic assembly and knob tightening method for the electromagnetic valve core of the present invention.

[0022] In the diagram: 1. Assembly table; 11. First assembly station; 12. Second assembly station; 13. Placement station; 2. Magnetic tube feeding and flipping mechanism; 21. Flipping drive assembly; 22. First lifting drive assembly; 23. First pneumatic gripper; 3. Valve body feeding mechanism; 31. First horizontal drive assembly; 32. Second lifting drive assembly; 33. Second pneumatic gripper; 4. Magnetic tube insertion mechanism; 41. Second horizontal drive assembly; 42. Third lifting drive assembly; 43. First rotary drive component; 44. Magnetic adsorption head; 5. Transfer mechanism; 51. Third horizontal drive assembly; 52. Fourth lifting drive assembly; 53. Third pneumatic gripper; 6. Knob fastening mechanism; 61. Fifth lifting drive assembly; 62. Second rotary drive component; 63. Tightening sleeve; 7. Valve body conveyor line; 8. Valve body; 9. Magnetic tube. Detailed Implementation

[0023] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0024] See Figures 1 to 17 This embodiment provides an automatic assembly knob fastening mechanism for electromagnetic valve cores, which is mainly used for automatic insertion and screw fastening assembly of magnetic tubes and valve bodies on electromagnetic valve core production and assembly lines.

[0025] The mechanism includes an assembly table 1, a magnetic tube feeding and flipping mechanism 2, a valve body feeding mechanism 3, a magnetic tube insertion mechanism 4, a transfer mechanism 5, and a knob fastening mechanism 6. The assembly table 1 is fixedly installed on the equipment frame, serving as the work platform for the entire assembly process. The assembly table 1 has a first assembly station 11, a second assembly station 12, and a placement station 13, each equipped with a positioning fixture. The first assembly station 11 is used for the insertion assembly of the magnetic tube and the valve body; the second assembly station 12 is used for the spiral assembly of the magnetic tube and the valve body; and the placement station 13 is located to one side of the second assembly station 12, used for temporary placement and buffering of the finished product after spiral assembly.

[0026] In this embodiment, all horizontal drive components and all vertical drive components are pneumatically driven, specifically using cylinders. All rotary drive components are driven by servo motors.

[0027] See Figures 5 to 7The magnetic tube loading and flipping mechanism 2 is located on one side of the assembly table 1, at the end of the magnetic tube conveying line (not shown in the figure). The magnetic tube loading and flipping mechanism 2 includes a flipping drive assembly 21, a first lifting drive assembly 22, and a first pneumatic gripper 23. The first lifting drive assembly 22 is vertically arranged and uses a combination of a linear guide rail and a cylinder. The cylinder drives the slider to move vertically up and down along the linear guide rail. The flipping drive assembly 21 is fixedly installed on the slider of the first lifting drive assembly 22 and can move up and down with the slider. The first pneumatic gripper 23 is fixedly installed at the output end of the flipping drive assembly 21. The flipping drive assembly 21 uses a rotary cylinder, which can drive the first pneumatic gripper 23 to flip 180 degrees around the horizontal axis. The first pneumatic gripper 23 is a parallel opening and closing type gripper, and the spacing of its gripper fingers is adapted to the outer diameter of the magnetic tube 9. When gripping, the fingers close to hold the magnetic tube 9; when releasing, the fingers open.

[0028] The working process of the magnetic tube feeding and flipping mechanism 2 is as follows: The cylinder of the first lifting drive assembly 22 drives the flipping drive assembly 21 and the first pneumatic gripper 23 to descend above the material picking position of the magnetic tube conveyor line. The cylinder of the first pneumatic gripper 23 actuates, and the fingers close to grip the magnetic tube 9. Subsequently, the first lifting drive assembly 22 drives the first pneumatic gripper 23 to rise, and the rotary cylinder of the flipping drive assembly 21 drives the first pneumatic gripper 23 to flip 180 degrees, so that the magnetic tube 9 flips from the connecting end facing upward to the connecting end facing downward. After flipping to the correct position, the magnetic tube 9 waits for the magnetic tube insertion mechanism 4 to pick it up.

[0029] See Figures 8 to 9 The valve body loading mechanism 3 is located on the other side of the assembly table 1, at the end of the valve body conveyor line 7. The valve body loading mechanism 3 includes a first horizontal drive assembly 31, a second lifting drive assembly 32, and a second pneumatic gripper 33. The first horizontal drive assembly 31 is horizontally positioned and uses a rodless cylinder or linear module (pneumatic) to drive the slider to move horizontally. The second lifting drive assembly 32 is vertically fixed to the slider of the first horizontal drive assembly 31 and can move horizontally with the slider. The second pneumatic gripper 33 is positioned on the slider of the second lifting drive assembly 32 and can move up and down with the slider. There are at least three second pneumatic grippers 33; in this embodiment, three are used as an example. The three second pneumatic grippers 33 are spaced apart, and each second pneumatic gripper 33 is a parallel opening and closing type gripper, capable of independently performing gripping and releasing actions.

[0030] The working process of the valve body feeding mechanism 3 is as follows: The first horizontal drive component 31 and the second lifting drive component 32 work together to drive the second pneumatic gripper 33 to move above the picking position of the valve body conveyor line 7. Correspondingly, the cylinder of the second pneumatic gripper 33 is activated, and the gripper closes to pick up the valve body 8. Subsequently, the first horizontal drive component 31 and the second lifting drive component 32 work together to drive the second pneumatic gripper 33 to move above the first assembly station 11 of the assembly table 1. The second pneumatic gripper 33 releases the valve body 8 and places it on the positioning fixture of the first assembly station 11 for positioning. Through the sequential action of the three second pneumatic grippers 33, the valve body 8 can be continuously transferred between different stations, improving the feeding efficiency. The three second pneumatic grippers 33 can simultaneously perform the following actions: picking up the valve body 8 from the valve body conveyor line 7, transferring the valve body 8 to the first assembly station 11, and returning empty to wait, achieving uninterrupted feeding.

[0031] See Figures 10 to 11 The magnetic tube insertion mechanism 4 is located on one side of the assembly table 1, between the magnetic tube loading and turning mechanism 2 and the first assembly station 11. The magnetic tube insertion mechanism 4 includes a second horizontal drive assembly 41, a third lifting drive assembly 42, a first rotary drive component 43, and a magnetic adsorption head 44. The second horizontal drive assembly 41 is horizontally positioned and uses a rodless cylinder to drive the slider to move horizontally. The third lifting drive assembly 42 is vertically fixed on the slider of the second horizontal drive assembly 41 and can move horizontally with the slider. The first rotary drive component 43 is fixedly installed on the slider of the third lifting drive assembly 42. The magnetic adsorption head 44 is located below the third lifting drive assembly 42 and is connected to the output end of the first rotary drive component 43 via a coupling. The first rotary drive component 43 uses a servo motor, which can precisely control the rotation angle and speed of the magnetic adsorption head 44. The magnetic adsorption head 44 is a tubular structure with an internal electromagnetic coil that generates a magnetic field when energized, which can attract the magnetic tube 9. The inner diameter of the magnetic adsorption head 44 is slightly larger than the outer diameter of the magnetic tube 9, allowing it to be fitted onto the outside of the magnetic tube 9. The inner wall of the magnetic adsorption head 44 may have a guide groove along the axial direction to facilitate smooth alignment when screwed into the outside of the magnetic tube.

[0032] The working process of the magnetic tube insertion mechanism 4 is as follows: The second horizontal drive assembly 41 and the third lifting drive assembly 42 work together to drive the magnetic adsorption head 44 to move above the magnetic tube loading and flipping mechanism 2. The cylinder of the third lifting drive assembly 42 drives the magnetic adsorption head 44 to descend, so that the magnetic adsorption head 44 fits into the outside of the magnetic tube 9. The first rotary drive component 43 servo motor drives the magnetic adsorption head 44 to rotate, so that the magnetic adsorption head 44 is smoothly screwed into the outside of the magnetic tube 9. After the insertion is completed, the magnetic adsorption head 44 is energized to generate a magnetic field and adsorbs the magnetic tube 9. Subsequently, the second horizontal drive assembly 41 and the third lifting drive assembly 42 work together to drive the magnetic adsorption head 44 and the magnetic tube 9 to move above the first assembly station 11. The third lifting drive assembly 42 drives the magnetic adsorption head 44 to descend, connecting the connecting end of the magnetic tube 9 into the mating end of the valve body 8, completing the insertion assembly. After the insertion is completed, the magnetic adsorption head 44 is de-energized and releases the magnetic tube 9. The first rotary drive component 43 rotates in the opposite direction to make the magnetic adsorption head 44 unscrew and reset.

[0033] See Figures 12 to 13 The transfer mechanism 5 is located on one side of the assembly table 1. The transfer mechanism 5 includes a third horizontal drive assembly 51, a fourth lifting drive assembly 52, and a third pneumatic gripper 53. The third horizontal drive assembly 51 is horizontally positioned and uses a rodless cylinder to drive the slider to move horizontally. The fourth lifting drive assembly 52 is vertically fixed to the slider of the third horizontal drive assembly 51. The third pneumatic gripper 53 is located on the slider of the fourth lifting drive assembly 52. ​​At least three third pneumatic grippers 53 are provided; in this embodiment, three are used as an example, and the three third pneumatic grippers 53 are spaced apart. Each third pneumatic gripper 53 is a parallel opening and closing type gripper. At least one third pneumatic gripper 53 is used to transfer the magnetic tube and valve body assembly from the first assembly station 11 to the second assembly station 12, at least one third pneumatic gripper 53 is used to transfer the finished product from the second assembly station 12 to the placement station 13, and at least one third pneumatic gripper 53 is used to transfer the finished product away.

[0034] The working process of the transfer mechanism 5 is as follows: The third horizontal drive component 51 and the fourth lifting drive component 52 work together to drive the third pneumatic gripper 53 to move above the first assembly station 11. Correspondingly, the cylinder of the third pneumatic gripper 53 actuates, the gripper closes and clamps the valve body with the magnetic tube already connected. Then it moves above the second assembly station 12, releases the assembly, and transfers the valve body and magnetic tube together to the positioning fixture on the second assembly station 12 for positioning. After the screw fastening is completed, another third pneumatic gripper 53 transfers the finished product from the second assembly station 12 to the placement station 13, and the remaining third pneumatic gripper 53 transfers the finished product away from the placement station 13. The three third pneumatic grippers 53 can simultaneously perform the following actions: clamping semi-finished products from the first assembly station, clamping finished products from the second assembly station, and clamping and removing finished products from the placement station, realizing continuous flow.

[0035] See Figures 14 to 16 The knob fastening mechanism 6 is located above the second assembly station 12. The knob fastening mechanism 6 includes a fifth lifting drive assembly 61, a second rotary drive component 62, and a tightening sleeve 63. The fifth lifting drive assembly 61 is vertically arranged and uses a combination of linear guide rail and cylinder; the cylinder drives the slider to move vertically along the linear guide rail. The second rotary drive component 62 is fixedly mounted on the slider of the fifth lifting drive assembly 61. The tightening sleeve 63 is connected to the output end of the second rotary drive component 62 via a coupling. The second rotary drive component 62 uses a servo motor, which can precisely control the rotational torque and angle of the tightening sleeve 63. The tightening sleeve 63 is a tubular structure with an inner diameter slightly larger than the outer diameter of the magnetic tube 9, used to fit over the magnetic tube 9. The lower end of the inner wall of the tightening sleeve 63 can be provided with a tightening structure that mates with the magnetic tube 9, such as an internal hexagonal hole or an internal spline groove, so as to drive the magnetic tube to spirally connect with the valve body during rotation. The rotational torque of the tightening sleeve 63 can be controlled by the current loop of the servo motor to achieve constant torque tightening and avoid over-tightening or over-loosening.

[0036] The working process of the knob fastening mechanism 6 is as follows: The cylinder of the fifth lifting drive assembly 61 drives the second rotary drive component 62 and the tightening sleeve 63 to move down to the second assembly station 12. The tightening sleeve 63 is fitted onto the outside of the magnetic tube 9. The servo motor of the second rotary drive component 62 drives the tightening sleeve 63 to rotate, spirally connecting the connecting end of the magnetic tube 9 to the mating end of the valve body 8, completing the tightening assembly of the magnetic tube 9 and the valve body 8. After tightening, the fifth lifting drive assembly 61 drives the tightening sleeve 63 to rise and reset.

[0037] See Figure 17 The automatic assembly knob fastening method for the electromagnetic valve core of the present invention includes the following steps: S1. The magnetic tube feeding and flipping mechanism 2 clamps the magnetic tube 9 and flips it so that the connecting end of the magnetic tube 9 faces downwards. Specifically: The first lifting drive assembly 22 drives the flipping drive assembly 21 and the first pneumatic gripper 23 to descend above the material handling station of the magnetic tube conveyor line. The cylinder of the first pneumatic gripper 23 is activated, and the gripper fingers close to grasp the magnetic tube 9. The first lifting drive assembly 22 drives the first pneumatic gripper 23 to rise to a safe height. The flipping drive assembly 21 drives the first pneumatic gripper 23 to flip 180 degrees around the horizontal axis, so that the magnetic tube 9 flips from the state with the connecting end facing up to the state with the connecting end facing down. After flipping to the correct position, the first pneumatic gripper 23 maintains the posture of holding the magnetic tube 9, waiting for the magnetic tube insertion mechanism 4 to come and pick it up.

[0038] S2, the valve body feeding mechanism 3 places the valve body 8 at the first assembly station 11, specifically: The first horizontal drive assembly 31 drives the second lifting drive assembly 32 to move horizontally, and the second lifting drive assembly 32 drives the second pneumatic gripper 33 to move vertically. The two work together to move the second pneumatic gripper 33 to above the material handling station of the valve body conveyor line 7. The cylinder of the second pneumatic gripper 33 is activated, and the gripper fingers close to grip the valve body 8. The first horizontal drive assembly 31 and the second lifting drive assembly 32 work together to move the second pneumatic gripper 33 to above the first assembly station 11 of the assembly table 1. The second pneumatic gripper 33 releases the valve body 8 and places the valve body 8 on the positioning fixture of the first assembly station 11 for precise positioning.

[0039] S3. The magnetic tube insertion mechanism 4 attracts the magnetic tube 9 and moves it to the first assembly station 11, inserting the connecting end of the magnetic tube 9 into the mating end of the valve body 8, specifically: The second horizontal drive assembly 41 and the third lifting drive assembly 42 work together to move the magnetic adsorption head 44 to directly above the magnetic tube feeding and flipping mechanism 2; the third lifting drive assembly 42 drives the magnetic adsorption head 44 to descend, so that the magnetic adsorption head 44 fits onto the outside of the magnetic tube 9; the first rotary drive component 43 drives the magnetic adsorption head 44 to rotate in the forward direction, so that the magnetic adsorption head 44 is screwed into the magnetic tube 9 along the axial direction. After the fitting is completed, the magnetic adsorption head 44 is energized to generate a magnetic field, adsorbing the magnetic tube 9; subsequently, the ... 9 along the axial direction. The third lifting drive assembly 42 drives the magnetic adsorption head 44 and the magnetic tube 9 to move directly above the first assembly station 11. The third lifting drive assembly 42 drives the magnetic adsorption head 44 and the magnetic tube 9 to descend, aligning the connecting end of the magnetic tube 9 with the docking end of the valve body 8 and inserting it into place, completing the insertion and assembly of the magnetic tube 9 and the valve body 8. After the insertion is completed, the magnetic adsorption head 44 is de-energized and releases the magnetic tube 9. The first rotation drive assembly 43 rotates in the opposite direction to make the magnetic adsorption head 44 rotate out of the magnetic tube 9. The third lifting drive assembly 42 drives the magnetic adsorption head 44 to rise and reset.

[0040] S4. The transfer mechanism 5 transfers the inserted magnetic tube 9 and valve body assembly from the first assembly station 11 to the second assembly station 12, specifically as follows: The third horizontal drive assembly 51 and the fourth lifting drive assembly 52 work together to move the third pneumatic gripper 53 to directly above the first assembly station 11; corresponding to the cylinder action of the third pneumatic gripper 53, the gripper fingers close and grip the valve body assembly with the magnetic tube 9 already inserted; the fourth lifting drive assembly 52 drives the third pneumatic gripper 53 to rise, causing the assembly to disengage from the positioning fixture of the first assembly station 11; the third horizontal drive assembly 51 drives the third pneumatic gripper 53 to move horizontally above the second assembly station 12; the fourth lifting drive assembly 52 drives the third pneumatic gripper 53 to descend, placing the assembly on the positioning fixture of the second assembly station 12 for precise positioning; the third pneumatic gripper 53 resets after releasing the assembly.

[0041] S5. The knob fastening mechanism 6 descends, the tightening sleeve 63 is inserted into the outside of the magnetic tube 9 and rotated, and the magnetic tube 9 is screwed and fastened to the valve body 8, specifically as follows: The fifth lifting drive assembly 61 drives the second rotary drive component 62 and the tightening sleeve 63 to descend above the second assembly station 12; the tightening sleeve 63 continues to descend and fits onto the outside of the magnetic tube 9; the tightening structure on the inner wall of the tightening sleeve 63 cooperates with the magnetic tube 9; the second rotary drive component 62 drives the tightening sleeve 63 to rotate in the forward direction, and the tightening sleeve 63 drives the magnetic tube 9 to rotate, so that the connecting end of the magnetic tube 9 is spirally connected to the docking end of the valve body 8 and gradually tightened; the tightening torque is controlled by the current loop of the second rotary drive component 62, and the rotation stops when the tightening torque reaches the preset value, completing the spiral fastening of the magnetic tube 9 and the valve body 8; the fifth lifting drive assembly 61 drives the tightening sleeve 63 to rise and reset.

[0042] S6. Transfer mechanism 5 transfers the finished product after screw fastening away, specifically as follows: The third horizontal drive assembly 51 and the fourth lifting drive assembly 52 work together to move the third pneumatic gripper 53 above the second assembly station 12; corresponding to the cylinder action of the third pneumatic gripper 53, the gripper fingers close to grip the finished product after screw fastening; the fourth lifting drive assembly 52 drives the third pneumatic gripper 53 to rise, so that the finished product is removed from the positioning fixture of the second assembly station 12; the third horizontal drive assembly 51 drives the third pneumatic gripper 53 to move above the placement station 13; the fourth lifting drive assembly 52 drives the third pneumatic gripper 53 to descend, placing the finished product on the placement station 13; another third pneumatic gripper 53 then grips the finished product from the placement station 13, and under the coordinated drive of the third horizontal drive assembly 51 and the fourth lifting drive assembly 52, transfers the finished product away, completing the entire assembly cycle.

Claims

1. An automatic assembly knob fastening mechanism for a solenoid valve core, characterized in that, The assembly includes an assembly table (1), a magnetic tube feeding and flipping mechanism (2), a valve body feeding mechanism (3), a magnetic tube insertion mechanism (4), a transfer mechanism (5), and a knob fastening mechanism (6). The assembly table (1) is provided with a first assembly station (11) and a second assembly station (12). The magnetic tube feeding and flipping mechanism (2) is used to flip the magnetic tube and transfer it to the first assembly station (11). The valve body feeding mechanism (3) is used to transfer the valve body to the first assembly station (11). The magnetic tube insertion mechanism (4) is used to insert the magnetic tube into the valve body located at the first assembly station (11). The transfer mechanism (5) is used to transfer the inserted magnetic tube and valve body from the first assembly station (11) to the second assembly station (12). The knob fastening mechanism (6) is located above the second assembly station (12) and is used to screw fasten the inserted magnetic tube and valve body together.

2. The automatic assembly knob fastening mechanism for the electromagnetic valve core according to claim 1, characterized in that, The magnetic tube feeding and flipping mechanism (2) includes a flipping drive assembly (21), a first lifting drive assembly (22), and a first pneumatic gripper (23). The first pneumatic gripper (23) is disposed on the flipping drive assembly (21), and the flipping drive assembly (21) is disposed on the first lifting drive assembly (22). The first pneumatic gripper (23) is used to grip the magnetic tube.

3. The automatic assembly knob fastening mechanism for the electromagnetic valve core according to claim 1, characterized in that, The valve body feeding mechanism (3) includes a first horizontal drive assembly (31), a second lifting drive assembly (32), and a second pneumatic gripper (33). The second pneumatic gripper (33) is disposed on the second lifting drive assembly (32), and the second lifting drive assembly (32) is disposed on the first horizontal drive assembly (31).

4. The automatic assembly knob fastening mechanism for the electromagnetic valve core according to claim 1, characterized in that, The magnetic tube insertion mechanism (4) includes a second horizontal drive assembly (41), a third lifting drive assembly (42), a first rotary drive component (43), and a magnetic adsorption head (44). The magnetic adsorption head (44) is located below the third lifting drive assembly (42). The first rotary drive component (43) is located on the third lifting drive assembly (42), and its output end is connected to the magnetic adsorption head (44) via a coupling. The magnetic adsorption head (44) is a tubular structure used to be sleeved on the outside of the magnetic tube and adsorb and grasp it.

5. The automatic assembly knob fastening mechanism for the electromagnetic valve core according to claim 1, characterized in that, The transfer mechanism (5) includes a third horizontal drive assembly (51), a fourth lifting drive assembly (52), and a third pneumatic gripper (53). The third pneumatic gripper (53) is disposed on the fourth lifting drive assembly (52), and the fourth lifting drive assembly (52) is disposed on the third horizontal drive assembly (51).

6. The automatic assembly knob fastening mechanism for the electromagnetic valve core according to claim 1, characterized in that, The knob fastening mechanism (6) includes a fifth lifting drive assembly (61), a second rotary drive component (62), and a tightening sleeve (63). The second rotary drive component (62) is disposed on the fifth lifting drive assembly (61). The tightening sleeve (63) is connected to the output end of the second rotary drive component (62) through a coupling. The tightening sleeve (63) is a tubular structure used to be sleeved on the outside of the magnetic tube and to screw the magnetic tube to the valve body.

7. The automatic assembly knob fastening mechanism for the electromagnetic valve core according to claim 1, characterized in that, The assembly table (1) is also provided with a placement station (13), which is located on one side of the second assembly station (12).

8. The automatic assembly knob fastening mechanism for the electromagnetic valve core according to claim 3, characterized in that, The second pneumatic gripper (33) is provided with at least three, and each second pneumatic gripper (33) is distributed at intervals, and is used for the sequential transfer of the valve body between different work positions.

9. The automatic assembly knob fastening mechanism for the electromagnetic valve core according to claim 5, characterized in that, The third pneumatic gripper (53) is provided in at least three, and the third pneumatic grippers (53) are spaced apart. At least one of the third pneumatic grippers (53) is used to transfer the magnetic tube and valve body assembly of the first assembly station (11) to the second assembly station (12), at least one of the third pneumatic grippers (53) is used to transfer the finished product of the second assembly station (12) to the placement station (13), and at least one of the third pneumatic grippers (53) is used to transfer the finished product away.

10. A method for automatically assembling and tightening a knob for an electromagnetic valve core, characterized in that, The automatic assembly knob fastening mechanism for electromagnetic valve cores as described in any one of claims 1-9 includes the following steps: S1, Magnetic tube feeding and flipping mechanism (2) clamps the magnetic tube and flips it so that the connecting end of the magnetic tube faces downward; S2, Valve body loading mechanism (3) places the valve body at the first assembly station (11); S3, the magnetic tube insertion mechanism (4) adsorbs the magnetic tube and moves it to the first assembly station (11), inserting the connecting end of the magnetic tube into the docking end of the valve body; S4. The transfer mechanism (5) transfers the inserted magnetic tube and valve body assembly from the first assembly station (11) to the second assembly station (12). S5. The knob fastening mechanism (6) descends, the sleeve (63) is screwed into the outside of the magnetic tube and rotated, and the magnetic tube is screwed to the valve body. S6, Transfer mechanism (5) transfers the finished product after the screw is tightened away.

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