Electromagnetic valve tool screwing device
By designing an automated solenoid valve tooling tightening device, the risks of manual installation and cable entanglement before solenoid valve testing were solved, realizing a safe and efficient flux sleeve tightening and testing process.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HUNAN DESIN AUTOMOBILE TECH CO LTD
- Filing Date
- 2025-07-29
- Publication Date
- 2026-07-21
AI Technical Summary
Existing solenoid valves require manual installation of the flux sleeve before testing, which poses a safety risk, and the cables are prone to tangling, affecting the test results.
A solenoid valve tooling tightening device was designed, including a bracket, an electric lifting mechanism, a clamping rotation mechanism, and a clamping lifting mechanism. It uses a stepper motor, a ball screw, and a grating sensor to automatically screw on the magnetic flux sleeve, and combines an elastic follower mechanism to prevent cable tangling.
The automated screw-on assembly of solenoid valves was achieved, avoiding the safety risks of manual operation and cable tangling, and improving testing efficiency and result accuracy.
Smart Images
Figure CN224526467U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of electromagnetic valve processing technology, specifically to an electromagnetic valve tooling tightening device. Background Technology
[0002] Solenoid valves are electromagnetically controlled industrial devices, fundamental components of automation systems used to control fluids. They are actuators, not limited to hydraulic or pneumatic systems. Used in industrial control systems to adjust the direction, flow rate, speed, and other parameters of the medium. Solenoid valves can be used with different circuits to achieve the desired control, ensuring both precision and flexibility. There are many types of solenoid valves, each playing a different role in the control system. The most common types are check valves, safety valves, directional control valves, and speed control valves.
[0003] After the solenoid valve is manufactured, it needs to be tested for performance. During the performance test, the solenoid valve is usually installed in the test fixture and then oil is introduced. The valve body performance is checked by adjusting the pressure and flow parameters of the oil.
[0004] Before testing the solenoid valve, a flux sleeve needs to be installed on the solenoid valve coil (to replace the actual installation position and matching environment of the solenoid valve under actual working conditions). The flux sleeve is installed to the solenoid valve through a threaded connection.
[0005] The disadvantages of existing technology: Before testing, the solenoid valve requires the installation and tightening of a threaded magnetic flux sleeve, which currently requires manual installation. Manual installation always carries safety risks, and if not tightened properly, there is a risk of oil leakage or spraying, affecting the test results. Furthermore, the solenoid valve is wired, and the cable must pass through the magnetic flux sleeve. Since the cable is flexible and relatively long, it cannot be housed within the sleeve, and tangling can occur when tightening using conventional rotating mechanisms. Utility Model Content
[0006] (a) Technical problems to be solved To address the shortcomings of existing technologies, this utility model provides a solenoid valve tooling tightening device, which has the advantages of automatically tightening the magnetic flux sleeve and preventing wire entanglement, thus solving the aforementioned problems.
[0007] (II) Technical Solution To achieve the above-mentioned purpose of automatically screwing on the magnetic flux sleeve without tangling the wire, this utility model provides the following technical solution: a solenoid valve tooling tightening device, including a bracket, an electric lifting mechanism, a clamping rotation mechanism, a clamping lifting mechanism, and a solenoid valve body. The electric lifting mechanism is provided on the side of the bracket, and the clamping rotation mechanism is provided on the power output side of the electric lifting mechanism. The magnetic flux sleeve is clamped and installed at the power output end of the clamping rotation mechanism, and the bottom of the solenoid valve body is clamped and installed on the top of the clamping lifting mechanism.
[0008] Preferably, the electric lifting mechanism includes a stepper motor, a linear guide rail, and a line plate. A ball screw is detachably mounted on the output end of the stepper motor via a coupling. A screw sleeve is threaded onto the outer side of the ball screw. The bottom ends of the stepper motor, coupling, and ball screw are all mounted on the side of a bracket via mounting seats. A guide rail slider is slidably mounted on the outer side of the linear guide rail. The guide rail slider is fixedly mounted on the side of a fixed frame. The fixed frame is fixedly mounted to the screw sleeve via a connecting plate. Limit screws are fixedly mounted on the inner top and bottom walls of the linear guide rail. A grating sensor is detachably mounted on the surface of the line plate. A sensing element corresponding to the grating sensor is fixedly mounted on the side of the fixed frame.
[0009] Preferably, the clamping and rotating mechanism includes a fixed shell, which is fixedly connected to one end of the fixed frame. A linear bearing is embedded inside the fixed shell, and a linear guide shaft is slidably inserted inside the linear bearing. A base is fixedly installed at the bottom of the linear guide shaft, and spring guide posts are fixedly installed at the four corners of the top of the base. The spring guide posts are inserted into the four corners of the fixed shell and slidably connected thereto. A buffer spring is fitted on the outside of the spring guide posts.
[0010] Preferably, a parallel pneumatic gripper is fixedly installed at the bottom of the base, and two symmetrically arranged pneumatic gripper fingers are fixedly installed at the output end of the parallel pneumatic gripper. A DC brushless motor with planetary reduction gear is fixedly installed at the top of the pneumatic gripper fingers, and a drive wheel is fixedly installed at the output end of the DC brushless motor with planetary reduction gear. The drive wheel is rotatably connected to the pneumatic gripper fingers, and a driven wheel is movably installed at the bottom of the pneumatic gripper fingers and on the side of the drive wheel.
[0011] Preferably, the clamping and lifting mechanism includes a lifting cylinder, a four-jaw gripper is fixedly installed at the output end of the lifting cylinder, the solenoid valve body is clamped and installed inside the four-jaw gripper, and the side of the lifting cylinder is connected to an external fixed plate through a side seat.
[0012] (III) Beneficial Effects Compared with the prior art, this utility model provides a solenoid valve tooling tightening device, which has the following beneficial effects: 1. This solenoid valve tooling tightening device uses a four-jaw pneumatic gripper to clamp and fix the bottom of the solenoid valve body, ensuring that the solenoid valve body will not rotate under force. The lifting cylinder can raise the position of the solenoid valve body, thus facilitating its cooperation with the clamping and rotating mechanism. The electric lifting mechanism is driven by a stepper motor, connected to a ball screw via a coupling, and its movement direction is constrained by a linear guide rail. Its stroke is limited by a grating sensor signal, converting the rotational motion into reciprocating linear motion, thereby realizing the lifting and lowering of the clamping and rotating mechanism. After the electric lifting mechanism controls the clamping and rotating mechanism to descend to a certain position, the parallel pneumatic gripper retracts, using the drive wheel and driven wheel to clamp the magnetic flux sleeve. Then, the DC brushless motor with planetary reduction gear rotates, driving the drive wheel, which drives the magnetic flux sleeve to tighten onto the outside of the solenoid valve body, thus realizing the automatic screwing of the magnetic flux sleeve.
[0013] 2. In the tightening device of this solenoid valve tooling, when the magnetic flux sleeve is tightened, the magnetic flux sleeve will generate a downward stroke. In order to keep the drive wheel and driven wheel from shifting away from the magnetic flux sleeve, an elastic follower mechanism is designed. The follower mechanism consists of a linear guide shaft, a linear bearing, a buffer spring and a spring guide post. The elastic follower mechanism will release the stroke of the buffer spring to counteract the displacement of the magnetic flux sleeve caused by tightening. In the end, this application can both clamp and rotate without tangling, and it also needs to follow the downward movement of the magnetic flux sleeve. Attached Figure Description
[0014] Figure 1 This is a three-dimensional structural diagram of the left side of this utility model; Figure 2 This is a three-dimensional structural diagram of the right side of this utility model; Figure 3 This is a schematic diagram of the structure of the electric lifting mechanism of this utility model; Figure 4 This is a schematic diagram of the clamping rotation mechanism, clamping lifting mechanism, and solenoid valve body of the present invention. Figure 5 This is a schematic diagram of the clamping and rotating mechanism of this utility model; Figure 6 This is a schematic diagram of the clamping and lifting mechanism of this utility model.
[0015] In the diagram: 1. Bracket; 2. Electric lifting mechanism; 3. Clamping and rotating mechanism; 4. Clamping and lifting mechanism; 5. Solenoid valve body; 21. Stepper motor; 22. Coupling; 23. Ball screw; 24. Screw sleeve; 25. Linear guide; 26. Guide rail slider; 27. Fixing bracket; 28. Limit screw; 29. Circuit board; 210. Grating sensor; 211. Sensing element; 31. Fixed housing; 32. Linear bearing; 33. Linear guide shaft; 34. Base; 35. Spring guide post; 36. Buffer spring; 37. Parallel pneumatic gripper; 38. Pneumatic gripper fingers; 39. DC brushless motor with planetary gear reduction; 310. Drive wheel; 311. Driven wheel; 41. Lifting cylinder; 42. Four-jaw pneumatic gripper; 43. Side seat. Detailed Implementation
[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0017] Please see Figure 1-2 A solenoid valve tooling tightening device includes a bracket 1, an electric lifting mechanism 2, a clamping and rotating mechanism 3, a clamping and lifting mechanism 4, and a solenoid valve body 5. The electric lifting mechanism 2 is provided on the side of the bracket 1 for driving the magnetic flux sleeve to move down. The clamping and rotating mechanism 3 is provided on the power output side of the electric lifting mechanism 2 for rotating and installing the magnetic flux sleeve. The magnetic flux sleeve is clamped and installed at the power output end of the clamping and rotating mechanism 3. The bottom of the solenoid valve body 5 is clamped and installed on the top of the clamping and lifting mechanism 4, which is used to fix the solenoid valve body 5 and also raise its position height.
[0018] Please see Figure 3 The electric lifting mechanism 2 includes a stepper motor 21, a linear guide rail 25, and a line plate 29. A ball screw 23 is detachably mounted on the output end of the stepper motor 21 via a coupling 22. A screw sleeve 24 is threadedly connected to the outer side of the ball screw 23. The bottom ends of the stepper motor 21, coupling 22, and ball screw 23 are all mounted to the side of the bracket 1 via mounting seats. The stepper motor 21 drives the ball screw 23 to rotate, and the rotation of the ball screw 23 in turn drives the screw sleeve 24 to move up or down.
[0019] Please see Figure 3 A guide rail slider 26 is slidably mounted on the outer side of the linear guide rail 25. The guide rail slider 26 is fixedly mounted on the side of the fixing frame 27. The fixing frame 27 is fixedly mounted to the lead screw sleeve 24 via a connecting plate. Limit screws 28 are fixedly installed on the inner top and inner bottom walls of the linear guide rail 25. The upward or downward movement of the lead screw sleeve 24 will also cause the fixing frame 27 to move upward or downward along the linear guide rail 25, and the upward or downward movement of the fixing frame 27 is limited by the position of the limit screws 28.
[0020] Please see Figure 3A grating sensor 210 is detachably mounted on the surface of the circuit board 29, and a sensing element 211 corresponding to the grating sensor 210 is fixedly mounted on the side of the mounting bracket 27. When the mounting bracket 27 moves up or down, the sensing element 211 passes through the inside of the grating sensor 210, and the grating sensor 210 transmits a signal to the PLC controller, which then controls whether the stepper motor 21 runs or stops.
[0021] Please see Figure 4-5 The clamping and rotating mechanism 3 includes a fixed housing 31, which is fixedly connected to one end of the fixed frame 27. A linear bearing 32 is embedded inside the fixed housing 31, and a linear guide shaft 33 slides through the linear bearing 32. A base 34 is fixedly installed at the bottom of the linear guide shaft 33, and spring guide posts 35 are fixedly installed at the four corners of the top of the base 34. The spring guide posts 35 are inserted into the four corners of the fixed housing 31 and slide with it. A buffer spring 36 is fitted on the outside of the spring guide post 35. When the magnetic flux sleeve is screwed onto the external thread of the solenoid valve body 5, the magnetic flux sleeve will move down to a certain position. The buffer spring 36 releases the thrust, causing the linear guide shaft 33 and the spring guide post 35 to move down, thereby counteracting the displacement caused by the screwing in of the magnetic flux sleeve.
[0022] Please see Figure 5 A parallel pneumatic gripper 37 is fixedly mounted on the bottom of the base 34. Two symmetrically arranged gripper fingers 38 are fixedly mounted on the output end of the parallel pneumatic gripper 37. A DC brushless motor 39 with planetary reduction gear is fixedly mounted on the top of the gripper fingers 38. A drive wheel 310 is fixedly mounted on the output end of the DC brushless motor 39 with planetary reduction gear. The drive wheel 310 is rotatably connected to the gripper fingers 38. A driven wheel 311 is movably mounted on the bottom of the gripper fingers 38 and on the side of the drive wheel 310. When the parallel pneumatic gripper 37 drives the gripper fingers 38 to retract, the drive wheel 310 and the driven wheel 311 will clamp the magnetic flux sleeve. Then, the DC brushless motor 39 with planetary reduction gear drives the drive wheel 310 to rotate, thereby screwing the magnetic flux sleeve onto the external thread of the solenoid valve body 5.
[0023] Please see Figure 6 The clamping and lifting mechanism 4 includes a lifting cylinder 41, with a four-jaw gripper 42 fixedly mounted on the output end of the lifting cylinder 41. The solenoid valve body 5 is clamped and installed inside the four-jaw gripper 42. The side of the lifting cylinder 41 is connected to an external fixed plate via a side seat 43. The lifting cylinder 41 can lift the solenoid valve body 5, and the four-jaw gripper 42 can fix and clamp the solenoid valve body 5, ensuring that the solenoid valve body 5 does not rotate.
[0024] Please see Figure 1-6The stepper motor 21, grating sensor 210, parallel gripper 37, DC brushless motor 39 with planetary reduction gear, lifting cylinder 41, and four-jaw gripper 42 are references to existing technologies, which will not be described in detail in this application. When using them, the preferred method can be selected under the premise of meeting the driving conditions. At the same time, the multiple devices mentioned above are electrically connected to the PLC controller to realize automated control.
[0025] Working principle: During use, the bottom of the solenoid valve body 5 is clamped and fixed by the four-jaw pneumatic gripper 42 to ensure that the solenoid valve body 5 will not rotate under force. The position of the solenoid valve body 5 can be raised by the lifting cylinder 41, which facilitates its cooperation with the clamping and rotating mechanism 3. The electric lifting mechanism 2 is driven by the stepper motor 21, connected to the ball screw 23 through the coupling 22, and its movement direction is constrained by the linear guide rail 25. Its stroke is limited by the signal of the grating sensor 210, converting the rotational motion into reciprocating linear motion, thereby realizing the lifting and lowering of the clamping and rotating mechanism 3. After the electric lifting mechanism control 2 drives the clamping and rotating mechanism 3 to descend to a certain position, the parallel pneumatic gripper 37 retracts, and the magnetic flux sleeve is clamped by the drive wheel 310 and the driven wheel 311. Then, the DC brushless motor 39 with planetary reduction gear rotates and drives the drive wheel 310. The drive wheel 310 drives the magnetic flux sleeve to tighten on the outside of the solenoid valve body 5, thereby realizing the automatic screwing of the magnetic flux sleeve.
[0026] When the magnetic flux sleeve is tightened, it will have a downward stroke. In order to prevent the drive wheel 310 and driven wheel 311 from shifting from the magnetic flux sleeve, an elastic follower mechanism is designed. The follower mechanism consists of a linear guide shaft 33, a linear bearing 32, a buffer spring 36, and a spring guide post 35. The elastic follower mechanism will release the stroke of the buffer spring 36 to counteract the displacement of the magnetic flux sleeve caused by tightening. In the end, this application can both clamp and rotate without tangling, and it also needs to follow the downward movement of the magnetic flux sleeve.
[0027] This application solves the problem of manual installation and tightening of solenoid valves, making the process more automated and improving testing efficiency. A robotic arm first places the solenoid valve with a magnetic flux sleeve onto the fixture. Then, the tightening mechanism drives the magnetic flux sleeve to tighten. This application presents an automated device designed for the mass testing of solenoid valves, improving work efficiency and ensuring process consistency.
[0028] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A solenoid valve tooling tightening device, comprising a bracket (1), an electric lifting mechanism (2), a clamping and rotating mechanism (3), a clamping and lifting mechanism (4), and a solenoid valve body (5), characterized in that: An electric lifting mechanism (2) is provided on the side of the bracket (1). A clamping and rotating mechanism (3) is provided on the power output side of the electric lifting mechanism (2). A magnetic flux sleeve is clamped and installed at one end of the power output of the clamping and rotating mechanism (3). The bottom of the solenoid valve body (5) is clamped and installed on the top of the clamping and lifting mechanism (4).
2. The solenoid valve tooling tightening device according to claim 1, characterized in that: The electric lifting mechanism (2) includes a stepper motor (21), a linear guide rail (25), and a line plate (29). The output end of the stepper motor (21) is detachably mounted with a ball screw (23) via a coupling (22). A screw sleeve (24) is threaded onto the outer side of the ball screw (23). The bottom ends of the stepper motor (21), the coupling (22), and the ball screw (23) are all mounted on the side of the bracket (1) via mounting bases. The outer side of the linear guide rail (25) slides... A guide rail slider (26) is installed, which is fixedly installed on the side of the fixed frame (27). The fixed frame (27) is fixedly installed to the lead screw sleeve (24) through a connecting plate. Limit screws (28) are fixedly installed on the inner top wall and inner bottom wall of the linear guide rail (25). A grating sensor (210) is detachably installed on the surface of the wire plate (29). A sensing element (211) corresponding to the grating sensor (210) is fixedly installed on the side of the fixed frame (27).
3. The solenoid valve tooling tightening device according to claim 2, characterized in that: The clamping and rotating mechanism (3) includes a fixed shell (31), which is fixedly connected to one end of the fixed frame (27). A linear bearing (32) is embedded inside the fixed shell (31). A linear guide shaft (33) is slidably inserted inside the linear bearing (32). A base (34) is fixedly installed at the bottom of the linear guide shaft (33). Spring guide posts (35) are fixedly installed at the four corners of the top of the base (34). The spring guide posts (35) are inserted into the four corners of the fixed shell (31) and slidably connected to it. A buffer spring (36) is fitted on the outside of the spring guide posts (35).
4. The solenoid valve tooling tightening device according to claim 3, characterized in that: A parallel pneumatic gripper (37) is fixedly installed at the bottom of the base (34). Two symmetrically arranged pneumatic gripper fingers (38) are fixedly installed at the output end of the parallel pneumatic gripper (37). A DC brushless motor (39) with planetary reduction gear is fixedly installed at the top of the pneumatic gripper fingers (38). A drive wheel (310) is fixedly installed at the output end of the DC brushless motor (39) with planetary reduction gear. The drive wheel (310) is rotatably connected to the pneumatic gripper fingers (38). A driven wheel (311) is movably installed at the bottom of the pneumatic gripper fingers (38) and on the side of the drive wheel (310).
5. The solenoid valve tooling tightening device according to claim 1, characterized in that: The clamping and lifting mechanism (4) includes a lifting cylinder (41), and a four-jaw gripper (42) is fixedly installed at the output end of the lifting cylinder (41). The solenoid valve body (5) is clamped and installed inside the four-jaw gripper (42). The side of the lifting cylinder (41) is connected to the external fixed plate through a side seat (43).