A temperature control valve core length automatic detection and calibration device

Abstract

The utility model discloses a kind of temperature control valve valve core length automatic detection calibration device, including detection module, thermostatic module, top pressure subassembly and fixed jig, thermostatic module is installed at the middle part of top pressure subassembly, fixed jig is installed in thermostatic module and top pressure subassembly extends to fixed jig, detection module is located in the directly above of fixed jig;The temperature control valve valve core length automatic detection calibration device of the present application passes through the temperature control valve valve core installation to fixed jig, is calibrated to temperature control valve valve core by detection module and temperature control valve valve core contact, each servo top pressure module of top pressure subassembly synergistic effect, temperature control valve valve core in fixed jig is top pressed, so that its internal temperature sensing material is compressed and drives valve stem to push detection module, detection module detects that valve stem rises to predetermined position, top pressure module resets, calibration process of temperature control valve valve core can be completed;The device can effectively improve the calibration efficiency of temperature control valve valve core, improve calibration accuracy, satisfy the use demand of user.

Description

Technical Field

[0001] This utility model relates to the field of temperature control valve manufacturing technology, specifically to an automatic detection and calibration device for the valve core length of a temperature control valve. Background Technology

[0002] Thermostatic valve cores are widely used in automatic thermostatic faucets, with a wide market application and large production volume. Due to the high precision requirements for valve core length, traditional manual calibration and length testing is not only inefficient but also lacks sufficient accuracy, resulting in large errors. It is also easily influenced by the tester and cannot meet the needs of large-scale production of thermostatic valves. Utility Model Content

[0003] To solve the above technical problems, an automatic detection and calibration device for the valve core length of a temperature control valve is provided, which automatically detects and calibrates the valve core length of the temperature control valve, thereby improving production efficiency.

[0004] To achieve the above objectives, the following solution is provided: an automatic detection and calibration device for the valve core length of a temperature control valve, comprising a detection module, a constant temperature module, a top pressure component, and a fixing fixture. The constant temperature module is installed in the middle of the top pressure component, the fixing fixture is installed inside the constant temperature module and the top pressure component extends into the fixing fixture, and the detection module is located directly above the fixing fixture.

[0005] The detection module includes a fixed support, a drive mechanism, and a detection mechanism. The fixed support is fixedly installed on the side of the top pressure assembly, the drive mechanism is installed on the fixed support, and the detection mechanism is installed on the side of the drive mechanism close to the fixed fixture.

[0006] The drive mechanism includes a clamping cylinder and a movable seat. The clamping cylinder is fixedly installed on the fixed support. The movable seat is installed at the end of the piston rod of the clamping cylinder and is connected to the fixed support by a slide rail. A detection mechanism is installed on the movable seat.

[0007] The detection mechanism includes a displacement sensor, a movable sleeve, a push rod, a spring, and a limiting plate. The displacement sensor is installed on one side of the movable seat, the movable sleeve is installed at the mounting base, the push rod is slidably installed inside the movable sleeve and is adapted to the displacement sensor, a limiting block is fixedly installed at the push rod and is slidably installed inside the movable sleeve, and a spring is sleeved on the push rod, with the spring located between the limiting block and the inner top wall of the movable sleeve.

[0008] Furthermore, the pressure assembly includes several servo pressure modules and a connector, with each servo pressure module evenly installed at the connector and the temperature control module located in the middle of the connector.

[0009] The servo pressure module includes a mounting bracket, a lead screw and nut mechanism, a servo motor, a transmission mechanism, and a pressure rod. The mounting bracket is fixedly installed on the outer wall of the connecting seat. The lead screw and nut mechanism is installed inside the fixed frame. One end of the pressure rod of the lead screw and nut mechanism is fixedly connected, and the other end of the pressure rod slides through the connecting seat and the constant temperature module and is inserted into the fixed fixture. The servo motor and the transmission mechanism are both installed at the end of the mounting bracket. The output shaft of the servo motor is connected to the lead screw and nut mechanism through the transmission mechanism.

[0010] Furthermore, the mounting bracket includes a mounting base, a mounting plate, and several guide rods. The mounting base is fixedly installed on the outer wall of the connecting base, and the mounting base and the mounting plate are fixedly connected by several guide rods. A screw and nut mechanism is installed between the mounting base and the mounting plate, and the screw and nut mechanism is slidably connected to the guide rods.

[0011] Furthermore, the lead screw and nut mechanism includes a push seat and a screw. One end of the screw is rotatably mounted on the mounting plate and connected to the transmission mechanism. The other end of the screw is threadedly connected to the push seat, and the push seat is slidably connected to the guide rod. The push seat is fixedly connected to one end of the pressure rod.

[0012] Furthermore, a top head is provided at the end of the pressure rod away from the push base.

[0013] Furthermore, the constant temperature module is a water bath, and the fixing fixture is installed inside the water bath.

[0014] Furthermore, several guide sleeves are provided on the side wall of the water bath, and the pressure rod is slidably installed in the guide sleeves.

[0015] Furthermore, the transmission mechanism is a gear transmission mechanism or a synchronous belt pulley transmission mechanism.

[0016] Furthermore, a clamping plate is installed at the gripper, and the inner side of the clamping plate is provided with a groove that matches the outer wall of the riveting fixture.

[0017] The working principle and advantages of this utility model are as follows: This automatic detection and calibration device for the length of the temperature control valve core installs the temperature control valve core into a fixed fixture. The detection module contacts the valve core to calibrate it. The servo pressing modules of the pressing assembly work together to press the valve core within the fixed fixture, compressing the internal temperature-sensing material and causing the valve stem to rise and push against the detection module. Once the detection module detects that the valve stem has risen to a predetermined position, the pressing module resets, thus completing the calibration process for the temperature control valve core. This device effectively improves the calibration efficiency and accuracy of the temperature control valve core, meeting user needs. Attached Figure Description

[0018] Fig. 1 This is a perspective view of the present utility model;

[0019] Fig. 2 This is a structural diagram of the servo pressure module of this utility model;

[0020] Fig. 3 This is a structural diagram of the detection module of this utility model.

[0021] The reference numerals in the accompanying drawings include:

[0022] 1. Fixed support, 2. Clamping cylinder, 3. Movable seat, 4. Slide rail, 5. Displacement sensor, 6. Movable sleeve, 61. Push rod, 7. Servo pressing module, 71. Mounting seat, 72. Mounting plate, 73. Guide rod, 74. Pushing seat, 75. Screw, 76. Servo motor, 77. Transmission mechanism, 78. Guide sleeve, 79. Pressure rod, 710. Top head, 8. Connecting seat, 9. Water bath, 10. Fixture. Detailed Implementation

[0023] The following detailed explanation illustrates the specific implementation methods:

[0024] like Figs. 1 to 3 As shown:

[0025] An automatic detection and calibration device for the length of a temperature control valve core includes a detection module, a constant temperature module, a top pressure assembly, and a fixing fixture 10. The constant temperature module is installed in the middle of the top pressure assembly and is used to load water at a constant temperature. It can be connected to a very stable water circulation system to ensure that the water loaded inside is kept at a constant temperature. The fixing fixture 10 is installed inside the constant temperature module so that the fixing fixture 10 is in a constant temperature environment, ensuring that the valve cores of each temperature control valve have the same temperature during calibration. The top pressure assembly extends into the fixing fixture 10 and is used to pressurize the valve cores of the temperature control valves inside the fixing fixture 10. The detection module is located directly above the fixing fixture 10 and is used to detect the height to which the valve stem rises when the temperature control valve is squeezed and the internal temperature-sensing material is compressed.

[0026] The detection module includes a fixed support, a drive mechanism, and a detection mechanism. The fixed support is fixedly installed on the side of the top pressure assembly. The fixed support is used to install the drive mechanism. The detection mechanism is installed on the side of the drive mechanism close to the fixed fixture 10. The drive mechanism is used to drive the detection mechanism to move downward.

[0027] The drive mechanism includes a clamping cylinder 2 and a movable seat 3. The clamping cylinder 2 is fixedly installed at the fixed support. The movable seat 3 is installed at the end of the piston rod of the clamping cylinder 2 and is connected to the fixed support through a slide rail 4. A detection mechanism is installed at the movable seat 3. The detection mechanism is used to calibrate the valve core.

[0028] The detection mechanism includes a displacement sensor 5, a movable sleeve 6, a push rod 61, a spring, and a limiting plate. The displacement sensor 5 is installed on one side of the movable seat 3, the movable sleeve 6 is installed at the mounting base 71, the push rod 61 is slidably installed inside the movable sleeve 6, and the push rod 61 is adapted to the displacement sensor 5. A limiting block is fixedly installed at the push rod 61, and the limiting block is slidably installed inside the movable sleeve 6. A spring is sleeved on the push rod 61, and the spring is located between the limiting block and the inner top wall of the movable sleeve 6. The push rod 61 can slide inside the movable sleeve 6. The spring is used to provide initial pressure and to reset the push rod 61. The limiting block is restricted within the movable sleeve 6 to prevent the push rod 61 from disengaging from the movable sleeve 6. The displacement sensor 5 is used to detect the displacement of the push rod 61.

[0029] The top pressure assembly includes several servo top pressure modules 7 and connecting seats 8. Each servo top pressure module 7 is evenly installed at the connecting seat 8. The constant temperature module is located in the middle of the connecting seat 8. Each servo top pressure module works synchronously and squeezes the temperature control valve core inside the fixed fixture 10 in a multi-directional and uniform manner at the fixed fixture 10.

[0030] The servo pressing module 7 includes a mounting bracket, a lead screw and nut mechanism, a servo motor 76, a transmission mechanism 77, and a pressure rod 79. The mounting bracket 1 is fixedly installed on the outer wall of the connecting seat 8. The mounting bracket 1 is used to install the lead screw and nut mechanism, the servo motor 76, and the transmission mechanism 77. The lead screw and nut mechanism is installed in the fixed bracket. One end of the pressure rod 79 of the lead screw and nut mechanism is fixedly connected. The lead screw and nut can drive the pressure rod 79 to press against the valve core of the temperature control valve in the fixed fixture 10. The servo motor 76 and the transmission mechanism 77 are both installed at the end of the mounting bracket. The output shaft of the servo motor 76 is connected to the lead screw and nut mechanism through the transmission mechanism 77.

[0031] The mounting bracket includes a mounting base 71, a mounting plate 72, and several guide rods 73. The mounting base 71 is fixedly installed on the outer wall of the connecting base 8. The mounting base 71 and the mounting plate 72 are fixedly connected by several guide rods 73. A screw and nut mechanism is installed between the mounting base 71 and the mounting plate 72 and is slidably connected to the guide rods 73.

[0032] The lead screw and nut mechanism includes a push seat 74 and a screw 75. One end of the screw 75 is rotatably mounted on the mounting plate 72 and is connected to the transmission mechanism 77. The other end of the screw 75 is threadedly connected to the push seat 74, and the push seat 74 is slidably connected to the guide rod 73. The push seat 74 is fixedly connected to one end of the pressure rod 79. The drive motor can drive the screw 75 to rotate through the transmission mechanism 77, and the screw 75 can drive the push seat 74 to move within the mounting bracket. The push seat 74 drives the pressure rod 79 to move together.

[0033] The end of the pressure rod 79 away from the push seat 74 is provided with a top head 710, which contacts the valve core of the temperature control valve in the fixed fixture 10.

[0034] The constant temperature module is a water bath 9, and the fixing fixture 10 is installed in the water bath 9. The water bath 9 is connected to the constant temperature water circulation system so that the water in the water bath 9 is kept at a constant temperature.

[0035] Several guide sleeves 78 are provided on the side wall of the water bath 9. The pressure rod 79 is slidably installed in the guide sleeve 78. The guide sleeve 78 makes the movement of the pressure rod 79 smoother, and at the same time, the guide sleeve 78 can seal the gap between the pressure rod 79 and the water bath 9.

[0036] The transmission mechanism 77 is either a gear transmission mechanism 77 or a synchronous belt pulley transmission mechanism 77.

[0037] The specific implementation process is as follows:

[0038] When using this automatic calibration device for the valve core length of a temperature control valve, firstly, an appropriate amount of constant temperature water is injected into the water tank through the constant temperature water circulation system. Then, the valve core of the temperature control valve to be calibrated is placed in the fixing fixture 10. Subsequently, the clamping cylinder 2 is activated. The clamping cylinder 2, through the movable seat 3, drives the detection module downwards. Under the action of the top pressure spring, the push rod 61 presses against the valve core rod of the temperature control valve, applying an initial pressure to the valve core rod. Simultaneously, the push rod 61 is pushed upwards, causing the other end of the push rod 61 to contact the displacement sensor 5. The displacement sensor 5 records this contact point as the initial value and stops the action of the clamping cylinder 2. Then, each... The servo pressing module 7 works synchronously. The servo motor 76 drives the screw 75 to rotate through the transmission mechanism 77. When the screw 75 rotates, it drives the push seat 74 to move between the guide rods 73. The push seat 74 drives the pressure rods 79 to move together. Each pressure rod 79 feeds synchronously into the fixed fixture 10. The pressure head of each pressure rod 79 presses against the temperature control valve core. After the temperature sensing material inside the temperature control valve core is compressed, it drives the valve rod to rise. The valve rod lifts the push rod 61. The push rod 61 pushes the displacement sensor 5 until the displacement sensor 5 is lifted to the predetermined height. Then each servo pressing module 7 resets, thus completing one calibration process of the temperature control valve core.

[0039] This automatic temperature control valve core length detection and calibration device calibrates the temperature control valve core by installing it into a fixed fixture 10 and having a detection module contact the valve core. The servo pressing modules 7 of the pressing assembly work together to press the valve core within the fixed fixture 10, compressing the internal temperature-sensing material and causing the valve stem to rise and push against the detection module. Once the detection module detects that the valve stem has risen to a predetermined position, the pressing module resets, thus completing the temperature control valve core calibration process. This device effectively improves the calibration efficiency and accuracy of temperature control valve cores, meeting user needs.

[0040] The above description is merely an embodiment of this utility model. Commonly known structures and characteristics are not described in detail here. Those skilled in the art are aware of all common technical knowledge in the field prior to the application date or priority date, are aware of all existing technologies in that field, and have the ability to apply conventional experimental methods prior to that date. Those skilled in the art can, based on the guidance provided in this application, improve and implement this solution in combination with their own capabilities. Some typical known structures or methods should not be obstacles for those skilled in the art to implement this application. It should be noted that those skilled in the art can make several modifications and improvements without departing from the structure of this utility model. These should also be considered within the scope of protection of this utility model, and will not affect the effectiveness of the implementation of this utility model or the applicability of the patent. The scope of protection claimed in this application should be determined by the content of its claims, and the specific embodiments described in the specification can be used to interpret the content of the claims.

Claims

1. An automatic detection and calibration device for the valve core length of a temperature control valve, characterized in that: It includes a detection module, a constant temperature module, a top pressure component, and a fixing fixture. The constant temperature module is installed in the middle of the top pressure component, the fixing fixture is installed inside the constant temperature module and the top pressure component extends into the fixing fixture, and the detection module is located directly above the fixing fixture. The detection module includes a fixed support, a drive mechanism, and a detection mechanism. The fixed support is fixedly installed on the side of the top pressure assembly, the drive mechanism is installed on the fixed support, and the detection mechanism is installed on the side of the drive mechanism close to the fixed fixture. The drive mechanism includes a clamping cylinder and a movable seat. The clamping cylinder is fixedly installed on the fixed support. The movable seat is installed at the end of the piston rod of the clamping cylinder and is connected to the fixed support by a slide rail. A detection mechanism is installed on the movable seat. The detection mechanism includes a displacement sensor, a movable sleeve, a push rod, a spring, and a limiting plate. The displacement sensor is installed on one side of the movable seat, the movable sleeve is installed at the mounting base, the push rod is slidably installed inside the movable sleeve and is adapted to the displacement sensor, a limiting block is fixedly installed at the push rod and is slidably installed inside the movable sleeve, and a spring is sleeved on the push rod, with the spring located between the limiting block and the inner top wall of the movable sleeve.

2. The automatic detection and calibration device for the valve core length of the temperature control valve according to claim 1, characterized in that: The pressure assembly includes several servo pressure modules and a connector. Each servo pressure module is evenly installed at the connector, and the temperature control module is located in the middle of the connector. The servo pressure module includes a mounting bracket, a lead screw and nut mechanism, a servo motor, a transmission mechanism, and a pressure rod. The mounting bracket is fixedly installed on the outer wall of the connecting seat. The lead screw and nut mechanism is installed inside the fixed frame. One end of the pressure rod of the lead screw and nut mechanism is fixedly connected, and the other end of the pressure rod slides through the connecting seat and the constant temperature module and is inserted into the fixed fixture. The servo motor and the transmission mechanism are both installed at the end of the mounting bracket. The output shaft of the servo motor is connected to the lead screw and nut mechanism through the transmission mechanism.

3. The automatic detection and calibration device for the valve core length of the temperature control valve according to claim 2, characterized in that: The mounting bracket includes a mounting base, a mounting plate, and several guide rods. The mounting base is fixedly installed on the outer wall of the connecting base. The mounting base and the mounting plate are fixedly connected by several guide rods. A screw and nut mechanism is installed between the mounting base and the mounting plate and is slidably connected to the guide rods.

4. The automatic detection and calibration device for the valve core length of the temperature control valve according to claim 3, characterized in that: The lead screw and nut mechanism includes a push seat and a screw. One end of the screw is rotatably mounted on the mounting plate and connected to the transmission mechanism. The other end of the screw is threadedly connected to the push seat, and the push seat is slidably connected to the guide rod. The push seat is fixedly connected to one end of the pressure rod.

5. The automatic detection and calibration device for the valve core length of the temperature control valve according to claim 4, characterized in that: The end of the pressure rod away from the pusher seat is provided with a top head.

6. The automatic detection and calibration device for the valve core length of the temperature control valve according to claim 1, characterized in that: The constant temperature module is a water bath, and the fixing fixture is installed inside the water bath.

7. The automatic detection and calibration device for the valve core length of the temperature control valve according to claim 6, characterized in that: Several guide sleeves are provided on the side wall of the water bath, and the pressure rod is slidably installed in the guide sleeves.

8. The automatic detection and calibration device for the valve core length of the temperature control valve according to claim 2, characterized in that: The transmission mechanism is a gear transmission mechanism or a synchronous belt pulley transmission mechanism.

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