Valve terminal test tool

Abstract

The utility model relates to the technical field of electromagnetic valve testing, in particular to a valve terminal testing tool, which comprises a base and a plurality of testing cylinders fixed on the base. The workbench is provided with a plurality of quick-plug interfaces used for being communicated with the test cylinder, and the vertical surface, far away from the quick-plug interfaces, of the workbench is provided with rubber plug openings communicated with the quick-plug interfaces; the sliding assembly is fixed on the base and comprises a sliding plate capable of moving in the direction close to or away from the workbench, and the sliding plate is used for placing a valve terminal to be detected; the driving assembly is used for driving the sliding plate to move in the direction close to or away from the workbench. During testing, the driving assembly drives the to-be-detected valve terminal on the sliding plate to move towards the workbench until the working opening of the to-be-detected valve terminal abuts against the rubber plug opening in a sealed mode and stops, and the air inlet of the to-be-detected valve terminal is communicated with the detection equipment during detection. According to the utility model, repeated disassembly and assembly are avoided, the operation steps are simplified, and the test precision is ensured while the test efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of electromagnetic valve testing, in particular to a valve island testing tool. Background Art

[0002] A valve island is a modular device that integrates multiple solenoid valves. It is commonly used in automated production lines to centrally manage and control multiple pneumatic or hydraulic actuators. By reducing the number of pipe connections and independent solenoid valves, it simplifies system wiring and maintenance, thereby improving system reliability and efficiency.

[0003] In the existing technology, the valve island is controlled and communicated through a common interface. However, when testing, it is often necessary to screw a quick-connect connector on each working port on the valve island, connect the test cylinder with an air pipe, and connect the valve island air source interface to an external air source for testing.

[0004] However, the above test method may cause damage to the threads of the working port, and repeated disassembly and assembly of the test cylinder may also cause damage, which may lead to deviations in the test results. Therefore, how to improve the efficiency and accuracy of valve island testing has become an urgent problem to be solved. Utility Model Content

[0005] In view of at least one of the above technical problems, the present invention provides a valve island testing tool, which adopts structural improvement to improve the efficiency and accuracy of testing.

[0006] According to a first aspect of the present invention, a valve island testing tool is provided, comprising:

[0007] a base, on which a plurality of test cylinders are fixed;

[0008] A workbench, wherein the workbench has a plurality of quick-connect interfaces for communicating with the test cylinder, and a rubber plugging port communicating with the quick-connect interfaces is provided on a vertical surface of the workbench away from the quick-connect interfaces;

[0009] a sliding assembly fixed on the base, comprising a sliding plate movable in a direction toward or away from the workbench, the sliding plate being used to place the valve island to be inspected;

[0010] A driving assembly, configured to drive the sliding plate to move toward or away from the workbench;

[0011] Among them, when conducting the test, the driving component drives the valve island to be tested on the sliding plate to move toward the workbench until the working port of the valve island to be tested is sealed and abutted against the rubber plug and stops, and the air inlet of the valve island to be tested is connected to the detection equipment during the test.

[0012] In some embodiments of the present invention, the workbench further has a step portion, and the plurality of quick-connect interfaces are vertically installed on the upper vertical surface of the step portion.

[0013] In some embodiments of the present invention, the workbench has a raised portion on a side away from the installation surface of the quick-connect interface, and the rubber plug is vertically installed on the vertical surface of the raised portion.

[0014] In some embodiments of the present invention, the rubber plug is tubular, including an insertion section inserted into the protrusion and a docking section connected to the insertion section. The outer diameter of the docking section is larger than the outer diameter of the insertion section and is exposed on the outside of the protrusion.

[0015] In some embodiments of the present invention, the rubber plugging port further includes a tapered portion provided on the end surface of the docking section, the tapered portion is annular, and the thickness of the tapered portion is gradually reduced in a direction away from the end surface of the docking section.

[0016] In some embodiments of the present invention, the sliding assembly includes a sliding rail fixed parallel to the base and a slider slidably arranged on the sliding rail, and the sliding plate is detachably fixed to the slider.

[0017] In some embodiments of the present invention, the sliding assembly further includes a positioning pin, and the positioning pin is vertically arranged on the sliding plate.

[0018] In some embodiments of the present invention, the driving assembly includes a driving cylinder and a first reversing valve connected to the driving cylinder through a pipeline. The driving cylinder is configured so that when the first reversing valve is ventilated in a first direction, the driving cylinder pushes out the piston, driving the sliding plate to move so that the valve island is tightly connected to the rubber plug. When the first reversing valve is ventilated in the other direction, the piston retracts.

[0019] In some embodiments of the present invention, the drive assembly further includes a speed regulating valve connected between the drive cylinder and the first reversing valve.

[0020] In some embodiments of the present invention, the drive assembly also includes a second reversing valve, a pressure reducing valve connected to the second reversing valve, and a shuttle valve connected to the pressure reducing valve. The second reversing valve is used for switching between high and low pressure, and the output port of the shuttle valve is used to connect to the valve island for testing.

[0021] The beneficial effects of this utility model are as follows: Multiple test cylinders are mounted on a base, a valve island is fixed to a sliding plate, and a drive assembly drives the valve island and connects it to a testing device for testing. The valve island can be tested by simply connecting the valve island to the sliding plate. Compared with existing technologies, this eliminates the need for repeated disassembly and assembly of test cylinders, simplifies the operation steps, and improves testing efficiency while ensuring test accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0023] Figure 1 This is a schematic structural diagram of the valve island in an embodiment of the present utility model;

[0024] Figure 2 This is a structural diagram of a test fixture without a valve island installed in an embodiment of the present utility model;

[0025] Figure 3 This is a structural diagram of the test fixture after the valve island is installed in the embodiment of the utility model;

[0026] Figure 4 This is a schematic structural diagram of a workbench in an embodiment of the present utility model;

[0027] Figure 5 In the embodiment of the present utility model Figure 4 Middle AA section view;

[0028] Figure 6 In the embodiment of the present utility model Figure 5 A partial enlarged view of point B in the middle;

[0029] Figure 7 This is a side view of the valve island test fixture in an embodiment of the present utility model;

[0030] Figure 8 In the embodiment of the present utility model Figure 7 A partial enlarged view of point C in the middle;

[0031] Figure 9 This is a schematic structural diagram of a drive assembly in an embodiment of the present utility model;

[0032] Figure 10 Schematic diagram of the relative installation structure of the first reversing valve, the second reversing valve, the pressure reducing valve and the shuttle valve in the embodiment of the present utility model.

[0033] Explanation of the accompanying drawings: 1. Base; 2. Test cylinder; 3. Workbench; 3a. Step portion; 3b. Raised portion; 31. Quick-connect connector; 32. Rubber plug; 32a. Insertion section; 32b. Docking section; 32c. Conical portion; 4. Sliding assembly; 41. Sliding plate; 42. Slide rail; 43. Slider; 44. Locating pin; 5. Driving assembly; 51. Driving cylinder; 52. First reversing valve; 53. Speed ​​regulating valve; 54. Second reversing valve; 55. Pressure reducing valve; 56. Shuttle valve; 01. Valve island. DETAILED DESCRIPTION

[0034] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0035] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly attached to the other element or there may be an intermediate element. When an element is referred to as being "connected to" another element, it may be directly connected to the other element or there may be an intermediate element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only implementation methods.

[0036] Unless otherwise defined, all technical and scientific terms used herein have the same meanings as those commonly understood by those skilled in the art to which this invention pertains. The terms used in this specification are intended solely for the purpose of describing specific embodiments and are not intended to limit this invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0037] like Figures 1 to 10 The valve island test fixture shown includes: a base 1, a workbench 3, a sliding assembly 4 and a drive assembly 5. Multiple test cylinders 2 are fixed on the base 1; the workbench 3 has multiple quick-connect interfaces 31 for communicating with the test cylinders 2, and the vertical surface of the workbench 3 away from the quick-connect interfaces 31 has a rubber plug 32 connected to the quick-connect interfaces 31; the sliding assembly 4 is fixed on the base 1, including a sliding plate 41 that can move toward or away from the workbench 3, and the sliding plate 41 is used to place the valve island 01 to be tested; the drive assembly 5 is used to drive the sliding plate 41 to move toward or away from the workbench 3. Figure 1As shown, valve island 01 is a kind of control unit that integrates multiple solenoid valves into one, with the monolithic valve being one of the smallest units. Monolithic valves are of various types, and you can choose from three-position five-way center-sealed type, medium-pressure type, center-drain type solenoid valve and many other types. What we should understand is that the monolithic valve is composed of two different pilot valves and a main valve; the pilot valve is a two-position, two-position normally closed solenoid valve with a spring reset and a manual button, which controls the on and off of its own gas by whether the electromagnetic coil is energized; there are multiple air holes on the main valve; the gas from the two pilot valves controls the action of the main valve of the monolithic valve and thus controls the output of the working port. The two pilot valves of each monolithic valve integrated on the manifold are uniformly controlled by the integrated circuit board of valve island 01, and then the electronic control module is connected to the external electronic control system to integrate the control of the monolithic valves of valve island 01, so that a variety of output forms can be obtained. Please refer to Figure 2 and Figure 3 The base 1 is the base structure of the fixture, and the workbench 3 is equipped with multiple quick-connect interfaces 31 for connecting to the test cylinder 2 on the base 1. The quick-connect interface 31 can realize the quick connection of gas between the test cylinder 2 and the workbench 3. A plurality of rubber plugs 32 are opened on the vertical surface of the workbench 3. These rubber plugs 32 are connected to the quick-connect interfaces 31 to facilitate the sealing of the working port of the valve island 01. The sliding plate 41 is used to place the valve island 01 to be tested, and can accurately position the valve island 01 through sliding movement during the test process. The drive component 5 pushes the valve island 01 to the workbench 3 to ensure that the working port of the valve island 01 is sealed and connected to the rubber plug 32 to achieve a leak-free sealing effect. In particular, when testing, the drive component 5 drives the valve island 01 to be tested on the sliding plate 41 to move toward the workbench 3 until the working port of the valve island 01 to be tested is sealed and abutted against the rubber plug 32, and the air inlet of the valve island 01 to be tested is connected to the testing equipment during testing. The utility model realizes a fast and reliable connection between the valve island 01 and the test, and improves the efficiency and accuracy of the test through the sealing cooperation between the quick-insert interface 31 and the rubber plug 32.

[0038] In some embodiments of the present invention, the workbench 3 further has a step portion, and a plurality of quick-connect interfaces 31 are vertically mounted on the upper vertical surface of the step portion 31a. Figure 4 As shown, the stepped structure adds three-dimensional depth to the workbench 3, allowing for targeted placement of different components in different locations. Quick-connect connector 31 is installed on the vertical surface of step 31a, facilitating docking with test cylinder 2. Positioning quick-connect connector 31 vertically on step 31a shortens docking distance, reduces errors, and facilitates a sealed connection during valve island 01 testing, enhancing the accuracy and ease of operation of the test device.

[0039] Furthermore, the workbench 3 has a raised portion 3b on one side of the mounting surface away from the quick-connect interface 31, and the rubber plug 32 is vertically mounted on the vertical surface of the raised portion 3b. Figure 4 , a raised portion 3b is provided on the side of the workbench 3 away from the quick-insert interface 31. The raised portion 3b protrudes from the surface of the workbench 3 to form an area with a vertical surface, so that the workbench 3 has more installation space and the function of layered arrangement. The rubber plug 32 is provided on the front of the raised portion 3b, so that it is distributed on a different plane from other interfaces on the workbench 3 to reduce mutual interference. At the same time, the vertical installation of the rubber plug 32 facilitates the alignment of the working port of the valve island 01 to be tested with the rubber plug 32 during testing to ensure sealed contact. The utility model not only optimizes the space utilization of the workbench 3, but also improves the positioning accuracy and sealing of the valve island 01 during testing to a certain extent, making the test operation easier.

[0040] Furthermore, the rubber plug 32 is tubular, including an insertion section 32a inserted into the raised portion 3b and a docking section 32b connected to the insertion section 32a. The outer diameter of the docking section 32b is larger than the outer diameter of the insertion section 32a and is exposed outside the raised portion 3b. Figure 5 and Figure 6 As shown, the rubber plug 32 is designed as a tubular structure, divided into an insertion section 32a and a docking section 32b. This segmented design allows the rubber plug 32 to appear differently inside and outside the raised portion 3b, ensuring stable installation and effective sealing. The insertion section 32a is the portion of the rubber plug 32 that is inserted into the raised portion 3b. This section has a smaller outer diameter, facilitating insertion into the raised portion 3b and providing stable mounting support. The design of the insertion section 32a ensures that the rubber plug 32 is securely fixed to the raised portion 3b after installation, preventing displacement or loosening due to external forces. The docking section 32b is connected to the outside of the insertion section 32a and has a larger outer diameter, allowing it to protrude from the outside of the raised portion 3b, facilitating docking with the working port of the valve island 01 to be inspected. The larger outer diameter provides a larger sealing surface for the docking section 32b, enhancing the sealing effect between it and the working port of the valve island 01.

[0041] On the basis of the above embodiment, the rubber plug 32 further includes a tapered portion 32c provided on the end surface of the docking section 32b. The tapered portion 32c is annular and the thickness of the tapered portion 32c gradually decreases in the direction away from the end surface of the docking section 32b. Figure 6 As shown, the annular structure surrounds the end surface of the docking section 32b, forming a gradually changing sealing surface. The tapered portion 32c can better adapt to different docking surfaces, improving sealing performance. The tapered portion 32c is thicker at its base and gradually thinner at its edges. This gradual thickness change allows the tapered portion 32c to better adapt to the working port surface of the valve island 01 during docking, providing a certain degree of flexibility. This arrangement helps absorb minor docking errors and improves sealing reliability. Furthermore, the tapered portion 32c buffers contact pressure during docking, preventing damage caused by direct, rigid docking.

[0042] In some embodiments of the present invention, the sliding assembly 4 includes a slide rail 42 fixed parallel to the base 1 and a slider 43 slidably arranged on the slide rail 42, and the sliding plate 41 is detachably fixed to the slider 43. Figure 7 and Figure 8 As shown, the sliding plate 41 can be detachably fixed to the slider 43. This detachable design provides great flexibility. The sliding plate 41 can be easily replaced, adjusted, or repaired to meet the inspection requirements of valve islands 01 of different sizes or types. Users can quickly remove and install the sliding plate 41 when needed, making the fixture more applicable to a wider range of applications.

[0043] Furthermore, the sliding assembly 4 further includes a positioning pin 44, and the positioning pin 41 is vertically arranged on the sliding plate 41. Figure 8 As shown, the sliding plate 41 is provided with positioning pins 44 that correspond to the mounting holes of the valve island 01 to be tested. The function of these positioning pins 44 is to align the valve island 01 with the mounting holes of the valve island 01 when the valve island 01 is placed on the sliding plate 41, thereby ensuring the accurate positioning of the valve island 01 on the sliding plate 41. The design of the positioning pins 44 simplifies the installation process of the valve island 01, improving operational convenience and positioning accuracy. By cooperating with the mounting holes, the positioning pins 44 not only stably fix the valve island 01 on the sliding plate 41, but also prevent deviation due to vibration or movement during testing, ensuring the reliability of the test results.

[0044] In some embodiments of the present invention, the drive assembly 5 includes a drive cylinder 51 and a first reversing valve 52 connected to the drive cylinder 51 through a pipeline. The drive cylinder 51 is configured so that when the first reversing valve 52 is ventilated in a first direction, the drive cylinder 51 pushes out the piston, driving the sliding plate 41 to move so that the valve island 01 is tightly connected to the rubber plug 32. When the first reversing valve 52 is ventilated in the other direction, the piston retracts. Figure 9 As shown, the drive cylinder 51 is the core actuator of the drive assembly 5, which can generate linear motion and is used to push the sliding plate 41. The first reversing valve 52 is connected to the drive cylinder 51 through a pipeline, and is responsible for controlling the gas inlet and outlet of the drive cylinder 51. The function of the first reversing valve 52 is to adjust the ventilation direction of the drive cylinder 51, thereby controlling the movement of the piston. During operation, the first reversing valve 52 ventilates in one direction, and the gas enters the drive cylinder 51 and pushes the piston out, and vice versa, the piston retracts. As the piston moves, the thrust applied by the drive cylinder 51 drives the sliding plate 41 to move toward the workbench 3, so that the valve island 01 on the sliding plate 41 gradually approaches the rubber plug 32, and finally achieves a close docking between the working port of the valve island 01 and the rubber plug 32. This process ensures that the valve island 01 reaches an ideal sealing state during the detection process, which is convenient for subsequent detection steps.

[0045] Specifically, the driving assembly 5 further includes a speed regulating valve 53 connected between the driving cylinder 51 and the first reversing valve 52. Figure 9 The speed regulating valve 53 is connected between the drive cylinder 51 and the first reversing valve 52 and is located in the gas flow path. It adjusts the movement speed of the drive cylinder 51 by controlling the flow rate of gas entering the drive cylinder 51. By adjusting the flow rate, the speed regulating valve 53 can make the movement of the sliding plate 41 more stable, preventing the sliding plate 41 from moving too fast or too slow, and ensuring a more precise and controlled docking process between the valve island 01 and the rubber plug 32. In addition, in the embodiment of the present utility model, the speed regulating valve 53 also serves as a safety protection function to prevent the cylinder from moving too fast, thereby avoiding pinching injuries or damage to the valve island 01 being tested.

[0046] Furthermore, the drive assembly 5 further includes a second reversing valve 54, a pressure reducing valve 55 connected to the second reversing valve 54, and a shuttle valve 56 connected to the pressure reducing valve 55. The second reversing valve 54 is used for switching between high and low pressures, and the output port of the shuttle valve 56 is used for connecting to the valve island 01 for testing. Figure 10 As shown, under different test requirements, the valve island 01 may need to be tested under different pressure conditions. Through the high-low pressure switching function of the second reversing valve 54, the appropriate pressure can be selected according to the test requirements to ensure the accuracy and adaptability of the test conditions. In the embodiment of the present utility model, the role of the pressure reducing valve 55 is to ensure that there is low-pressure air in the system to achieve the test conditions of high-low pressure switching. When high-pressure and low-pressure gases enter from different channels, the shuttle valve 56 automatically selects the appropriate airflow according to the current pressure conditions and guides it to the output port to ensure stable output airflow under different pressure requirements.

[0047] When testing high- and low-pressure response, connect the pressure output of shuttle valve 56 to the working port of valve island 01. Turn second reversing valve 54 to switch to high-pressure output. The electronic control system will frequency-shift the power supply to the monolithic valve pilot valve. Observe the operation of test cylinder 2. If no abnormalities are observed, switch to low pressure and observe again. After the test is complete, switch second reversing valve 54 to no pressure output. Wait until valve island 01 is completely depleted before disabling electronic control.

[0048] When performing high- and low-pressure air tightness tests, connect a leak tester between the output port of shuttle valve 56 and the working port of valve island 01. Turn on the low pressure setting, control it with the electronic control system, observe the leakage parameters under each state and compare them with the standard. Then switch to high pressure and repeat the process. After the test is completed, switch the second reversing valve 54 to a zero-pressure output, and stop the electronic control.

[0049] After the above two tests are completed, the first reversing valve 52 is rotated to retract the sliding plate 41, the valve island 01 is removed, and the next set of valve islands 01 is tested.

[0050] Those skilled in the art should understand that the present invention is not limited to the above-described embodiments. The above-described embodiments and the specification are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements are intended to fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. A valve island test tool, characterized in that: include: a base, on which a plurality of test cylinders are fixed; A workbench, wherein the workbench has a plurality of quick-connect interfaces for communicating with the test cylinder, and a rubber plugging port communicating with the quick-connect interfaces is provided on a vertical surface of the workbench away from the quick-connect interfaces; a sliding assembly fixed on the base, comprising a sliding plate movable in a direction toward or away from the workbench, the sliding plate being used to place the valve island to be inspected; A driving assembly, configured to drive the sliding plate to move toward or away from the workbench; Among them, when conducting the test, the driving component drives the valve island to be tested on the sliding plate to move toward the workbench until the working port of the valve island to be tested is sealed and abutted against the rubber plug and stops, and the air inlet of the valve island to be tested is connected to the detection equipment during the test.

2. The valve island test fixture according to claim 1, characterized in that: The workbench also has a step portion, and the plurality of quick-connect interfaces are vertically installed on the upper vertical surface of the step portion.

3. The valve island test fixture according to claim 1, characterized in that: The workbench has a raised portion on one side of the installation surface away from the quick-connect interface, and the rubber plug is vertically installed on the vertical surface of the raised portion.

4. The valve island test fixture according to claim 3, characterized in that: The rubber plug is tubular and includes an inserting section inserted into the protruding portion and a docking section connected to the inserting section. The outer diameter of the docking section is larger than the outer diameter of the inserting section and is exposed outside the protruding portion.

5. The valve island testing tool according to claim 4, characterized in that: The rubber plugging port further includes a tapered portion provided on the end surface of the docking section. The tapered portion is annular, and the thickness of the tapered portion is gradually reduced in a direction away from the end surface of the docking section.

6. The valve island testing tool according to claim 1, characterized in that: The sliding assembly includes a sliding rail fixed parallel to the base and a sliding block slidably arranged on the sliding rail, and the sliding plate is detachably fixed on the sliding block.

7. The valve island testing tool according to claim 6, characterized in that: The sliding assembly further includes a positioning pin, which is vertically arranged on the sliding plate.

8. The valve island testing tool according to claim 1, characterized in that: The driving assembly includes a driving cylinder and a first reversing valve connected to the driving cylinder through a pipeline. The driving cylinder is configured so that when the first reversing valve is ventilated in a first direction, the driving cylinder pushes out the piston, drives the sliding plate to move so that the valve island is tightly connected to the rubber plugging port, and when the first reversing valve is ventilated in the other direction, the piston retracts.

9. The valve island testing tool according to claim 8, characterized in that: The driving assembly further includes a speed regulating valve connected between the driving cylinder and the first reversing valve.

10. The valve island testing tool according to claim 8, characterized in that: The drive assembly also includes a second reversing valve, a pressure reducing valve connected to the second reversing valve, and a shuttle valve connected to the pressure reducing valve. The second reversing valve is used for switching between high and low pressures, and the output port of the shuttle valve is used for connecting to a valve island for testing.

Images