Device for detecting air tightness of electromagnetic valve
By designing an airtightness detection device for solenoid valves, the airtightness detection of the valve core is automatically detected by material extraction robots and airtight monitors, the problems of low manual detection efficiency and low accuracy in the prior art are solved, and efficient and accurate automated detection is achieved.
Patent Information
- Application Number
- CN202421819784.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-29
- Publication Date
- 2025-06-20
- Estimated Expiration
- 2034-07-29
AI Technical Summary
In the prior art, the airtightness detection efficiency and accuracy of solenoid valve cores are manually used to manually detect the solenoid valve core. It requires manual participation.
A device for airtightness detection of solenoid valves is designed, including a rack, a material pickup robot and airtight detection assembly. The material collection robot grabs the valve core and places it on the detection position of the detection placing rack. The airtight monitor transmits gas to the detection position through the airtight connection pipe, and detects the airtightness of the valve core based on the gas pressure.
Accurate detection of the airtightness of the solenoid valve core is achieved, the accuracy of the detection results is improved, and there is no need for manual participation in the automated inspection process, which improves the detection efficiency.
Smart Images
Figure CN223005686U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of solenoid valve assembly equipment, and particularly relates to an air tightness detection device for solenoid valves. Background Art
[0002] As a key component in fluid control systems, solenoid valves are widely used in multiple fields such as industrial automation, medical devices, and automobile manufacturing. The core component of a solenoid valve is the spool part. When assembling the spool, it is necessary to strictly control the dimensions and precision of each component in the spool to ensure good air tightness of the spool. Generally, after the spool assembly is completed, it is necessary for workers to use an air gun to detect the air tightness of the spool manually. This detection method cannot accurately detect the air tightness of the spool, and the efficiency of manual air tightness detection is too low. In view of this, the present utility model is proposed. Summary of the Utility Model
[0003] In order to solve the problems of low efficiency and low precision in manually detecting the air tightness of the spool, the present utility model provides an air tightness detection device for solenoid valves.
[0004] To solve the above technical problems, the present utility model provides an air tightness detection device for solenoid valves. The air tightness detection device for solenoid valves includes a frame, a picking robot, and an air tightness detection component. The picking robot is fixed on the frame to grab the spool to the air tightness detection component. The air tightness detection component includes an air tightness monitor, an air tightness connecting pipe, and a detection placement rack. A detection position for placing the spool is provided on the detection placement rack. A through hole communicating with the detection position is provided on the detection placement rack. The air tightness monitor is communicated with the through hole through the air tightness connecting pipe to supply air to the detection position, and the air tightness monitor detects the air tightness of the spool according to the air supply pressure.
[0005] In an embodiment of the present utility model, the detection placement rack includes an upper support and a lower support. The lower support is fixed on the frame, and a guiding column is fixed on the lower support. The upper support is located above the lower support and is slidably connected to the guiding column. The detection position includes a lower detection position and an upper detection position. The lower detection position is provided on the lower support for placing the lower end of the spool, and the upper detection position is provided on the upper support to cover the upper end of the spool when the upper support moves downward.
[0006] In an embodiment of the present utility model, the upper detection position includes an upper connecting disk and a buffer spring. The connecting disk is connected to the upper support through the buffer spring. The lower detection position includes a lower connecting disk. The upper connecting disk, the buffer spring, and the lower connecting disk are coaxially arranged.
[0007] In an embodiment of the present utility model, the airtight detection assembly further includes a driving member and a support frame. The support frame is fixed to the top of the guiding column and positions the upper bracket between the support frame and the lower bracket. The driving member is fixed to the support frame and connected to the upper bracket to drive the upper bracket to slide along the guiding column.
[0008] In an embodiment of the present utility model, the solenoid valve airtightness detection device further includes a spool detector. The spool detector is installed on the lower bracket to detect whether a spool is placed at the lower detection position.
[0009] In an embodiment of the present utility model, the spool detector includes a photoelectric emitter and a photoelectric receiver. The photoelectric emitter and the photoelectric receiver are respectively installed on both sides of the lower bracket.
[0010] In an embodiment of the present utility model, the spool detector further includes a detection support frame. The detection support frame is fixed to the lower bracket for installing the photoelectric emitter and the photoelectric receiver. The height of the detection support frame is higher than the height of the lower detection position.
[0011] In an embodiment of the present utility model, at least two upper detection positions are arranged in an array on the upper bracket, and at least two lower detection positions are arranged in an array on the lower bracket. The number of spool detectors is adapted to the number of lower detection positions and the positions correspond.
[0012] In an embodiment of the present utility model, the number of detection placement frames is at least two, and at least two detection placement frames are arranged in an array along the length or width direction of the machine frame.
[0013] Compared with the prior art, the beneficial effects of the present utility model are as follows:
[0014] The spool is grabbed by the material taking robot and placed on the detection position of the detection placement frame. The airtight monitoring instrument conveys gas to the detection position through the airtight connecting pipe, and controls the magnitude of the output air pressure to perform airtightness detection on the spool, thereby realizing the airtightness detection of the spool. The air pressure output by the airtight monitoring instrument can be accurately adjusted, so as to realize the accurate detection of the airtightness of the spool, improve the accuracy rate of the detection result, and there is no need for manual participation during the detection process, thus realizing the automatic detection of the airtightness of the spool and improving the detection efficiency. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] The drawings are used to provide a further understanding of the embodiments of the present utility model, and constitute a part of the specification. Together with the following specific embodiments, they are used to explain the embodiments of the present utility model, but do not constitute a limitation to the embodiments of the present utility model. In the drawings:
[0016] Figure 1It is the first three-dimensional structure schematic diagram of the airtightness detection device provided by the embodiment of the present utility model;
[0017] Figure 2 It is the second three-dimensional structure schematic diagram of the airtightness detection device provided by the embodiment of the present utility model;
[0018] Figure 3 It is Figure 2 The enlarged view of part A in
[0019] Figure 4 It is Figure 2 The enlarged view of part B in
[0020] Explanation of reference numerals
[0021] 1. Airtightness detection device; 2. Valve core; 11. Frame; 12. Loading robot; 13. Airtightness detection component; 14. Valve core detector; 131. Airtightness monitor; 132. Airtight connection pipe; 133. Upper support; 134. Lower support; 135. Upper detection position; 136. Lower detection position; 137. Driving part; 138. Support frame; 141. Detection support; 1341. Guide post; 1351. Connection disk; 1352. Buffer spring. Detailed implementation manners
[0022] The following will explain in detail the detailed implementation manners of the present utility model with reference to the drawings. It should be understood that the detailed implementation manners described herein are only used to illustrate and explain the present utility model, and are not used to limit the present utility model.
[0023] Please refer to Figures 1-4 , Figure 1 It is the first three-dimensional structure schematic diagram of the airtightness detection device provided by the embodiment of the present utility model; Figure 2 It is the second three-dimensional structure schematic diagram of the airtightness detection device provided by the embodiment of the present utility model; Figure 3 It is Figure 2 The enlarged view of part A in Figure 4 It is Figure 2 The enlarged view of part B in. The airtightness detection device 1 for solenoid valves of the present utility model includes a frame 11, a loading robot 12 and an airtightness detection component 13. The loading robot 12 is fixed on the frame 11 to grab the valve core 2 to the airtightness detection component 13. The airtightness detection component 13 includes an airtightness monitor 131, an airtight connection pipe 132 and a detection placement rack. The placement rack is provided with a detection position for placing the valve core 2. The detection placement rack is provided with a through hole communicated with the detection position. The airtightness monitor 131 is communicated with the through hole through the airtight connection pipe 132 to supply air to the detection position, and the airtightness monitor 131 detects the airtightness of the valve core 2 according to the air supply pressure.
[0024] After the valve core 2 is assembled, it is stored in a material box, and the material box is placed on the frame 11. When performing an airtightness test on the valve core 2, first, the picking robot 12 grabs the valve core 2 from the material box and places the valve core 2 at the detection position on the detection placement rack. Subsequently, the airtightness monitor 131 conveys air to the detection position through the airtight connection pipe 132, and controls the magnitude of the output air pressure to perform an airtightness test on the valve core 2, thereby realizing the airtightness test of the valve core 2.
[0025] Compared with the prior art in which manual use of an air gun is used to perform an airtightness test on the valve core 2, the present utility model uses a robot to grab the valve core 2 and place it at the detection position on the detection placement rack, and uses the airtightness monitor 131 to convey air to the detection position. The air pressure output by the airtightness monitor 131 can be accurately adjusted, so as to accurately detect the airtightness of the valve core 2, improve the accuracy rate of the detection result, and there is no need for manual participation during the detection process, realizing the automatic detection of the airtightness of the valve core 2 and improving the detection efficiency.
[0026] In an embodiment of the present utility model, the detection placement rack includes an upper bracket 133 and a lower bracket 134. The lower bracket 134 is fixed to the frame 11, and a guide post 1341 is fixed on the lower bracket 134. The upper bracket 133 is located above the lower bracket 134 and is slidably connected to the guide post 1341. The detection position includes a lower detection position 136 and an upper detection position 135. The lower detection position 136 is arranged on the lower bracket 134 for the lower end of the valve core 2 to be placed, and the upper detection position 135 is arranged on the upper bracket 133. When performing an airtightness test on the valve core 2, by moving the upper bracket 133 and making the upper bracket 133 move downward along the guide post 1341, so that the upper detection position 135 covers the upper end of the valve core 2, thereby realizing the sealing effect on the valve core 2. Then, the airtightness monitor 131 can convey air to the lower detection position 136, and control the magnitude of the output air pressure to detect the airtightness effect of the valve core 2 at various pressure values, so as to accurately detect the airtightness of the valve core 2.
[0027] In an embodiment of the present utility model, the upper detection position 135 includes an upper connection disk 1351 and a buffer spring 1352. The connection disk 1351 is connected to the upper bracket 133 through the buffer spring 1352. The lower detection position 136 includes a lower connection disk 1351. The upper connection disk 1351, the buffer spring 1352, and the lower connection disk 1351 are coaxially arranged. When the upper bracket 133 moves downward along the guide post 1341, the upper connection disk 1351 moves downward to cover the upper end of the valve core 2. When the upper connection disk 1351 contacts the lower connection disk 1351, the buffer spring 1352 is compressed, so that the upper connection disk 1351 and the lower connection disk 1351 achieve flexible contact and finally seal the valve core 2, facilitating subsequent airtightness detection of the valve core 2 and avoiding rigid contact between the upper connection disk 1351 and the lower connection disk 1351, which may affect the service life of the detection position.
[0028] In an embodiment of the present utility model, the airtightness detection assembly 13 further includes a driving member 137 and a support frame 138. The support frame 138 is fixed to the top of the guide post 1341 and positions the upper bracket 133 between the support frame 138 and the lower bracket 134. The driving member 137 is fixed to the support frame 138 and connected to the upper bracket 133 to drive the upper bracket 133 to slide along the guide post 1341, so that the upper connection disk 1351 covers and seals the lower connection disk 1351, providing a space for airtightness detection of the valve core 2.
[0029] In an embodiment of the present utility model, the solenoid valve airtightness detection device 1 further includes a valve core detector 14. The valve core detector 14 is installed on the lower bracket 134 to detect whether the valve core 2 is placed on the lower detection position 136. When the valve core detector 14 detects that the valve core 2 is not placed on the lower detection position 136, the driving member 137 is prohibited from driving the upper bracket 133 to move downward. On the contrary, when the valve core detector 14 detects that the valve core 2 is placed on the lower detection position 136, the driving member 137 is triggered to drive the upper bracket 133 to move downward, thereby avoiding operation accidents and improving the operation safety of the airtightness detection device 1.
[0030] In an embodiment of the present utility model, the valve core detector 14 includes a photoelectric emitter and a photoelectric receiver. The photoelectric emitter and the photoelectric receiver are respectively installed on both sides of the lower bracket 134. When the valve core 2 is placed on the lower detection position 136, the valve core 2 blocks the laser beam emitted by the photoelectric emitter. At this time, the photoelectric receiver cannot receive the laser beam, and thus it is detected that the valve core 2 is placed on the lower detection position 136. On the contrary, when the valve core 2 is not placed on the lower detection position 136, the laser beam emitted by the photoelectric emitter can directly irradiate the photoelectric receiver, and thus it is detected that the valve core 2 is not placed on the lower detection position 136.
[0031] In an embodiment of the present utility model, the valve core detector 14 further includes a detection bracket 141. The detection bracket 141 is fixed to the lower bracket 134 for installing the photoelectric emitter and the photoelectric receiver. The height of the detection bracket 141 is higher than the height of the lower detection position 136, so that the heights of the photoelectric emitter and the photoelectric receiver are higher than the lower detection position 136, thereby achieving the detection effect of whether the valve core 2 is placed at the lower detection position 136.
[0032] In an embodiment of the present utility model, the upper bracket 133 is provided with at least two upper detection positions 135 in an array, and the lower bracket 134 is provided with at least two lower detection positions 136 in an array. The number of the valve core detectors 14 is adapted to the number of the lower detection positions 136 and the positions correspond to each other, so that the material taking robot 12 grabs at least two valve cores 2 and respectively places them on at least two detection positions. When the valve core detector 14 detects that the valve cores 2 are placed on at least two detection positions, the driving member 137 is triggered to drive the upper bracket 133 to move downward to enclose the valve core 2, and then the airtightness monitor 131 supplies air to at least two detection positions, thereby realizing the airtightness detection of at least two valve cores 2 at the same time and improving the efficiency of the airtightness detection of the valve core 2.
[0033] In an embodiment of the present utility model, the number of the detection placement racks is at least two, and at least two detection placement racks are arranged in an array along the length or width direction of the machine frame 11, so that the material taking robot 12 grabs at least four valve cores 2 and respectively places them on at least four detection positions. When the valve core detector 14 on any one of the detection placement racks detects that the valve cores 2 are placed on at least two detection positions, the corresponding driving member 137 is triggered to drive the upper bracket 133 to move downward to enclose the valve core 2, and then the airtightness monitor 131 supplies air to at least two detection positions, thereby realizing the airtightness detection of at least two valve cores 2 at the same time and improving the efficiency of the airtightness detection of the valve core 2.
[0034] In the present utility model, unless otherwise clearly specified and defined, the first feature being "on" or "under" the second feature may be that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on" the second feature may be that the first feature is directly above or obliquely above the second feature, or merely indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature being "under", "beneath" and "under" the second feature may be that the first feature is directly below or obliquely below the second feature, or merely indicates that the horizontal height of the first feature is lower than that of the second feature.
[0035] The preferred embodiments of the present utility model have been described in detail above in conjunction with the accompanying drawings. However, the present utility model is not limited thereto. Within the scope of the technical concept of the present utility model, various simple modifications can be made to the technical solution of the present utility model, including combinations of various specific technical features in any suitable manner. To avoid unnecessary repetition, the present utility model will not separately describe various possible combination methods. However, these simple modifications and combinations should also be regarded as the content disclosed by the present utility model and all fall within the protection scope of the present utility model.
[0036] Although the embodiments of the present utility model have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limiting the present utility model. Those of ordinary skill in the art can make changes, modifications, substitutions, and variations to the above embodiments within the scope of the present utility model.
Claims
1. A device for detecting air tightness of a solenoid valve, characterized in that: The air tightness detection device for solenoid valves includes a frame, a material picking robot and an air tightness detection component. The material picking robot is fixed on the frame to grab the valve core to the air tightness detection component. The air tightness detection component includes an air tightness monitor, an air tight connecting pipe and a detection placement rack. The detection placement rack is provided with a detection position for placing the valve core. The detection placement rack is provided with a through hole connected to the detection position. The air tightness monitor is connected to the through hole through the air tight connecting pipe to supply gas to the detection position. The air tightness monitor detects the air tightness of the valve core according to the gas supply pressure.
2. The air tightness detection device for solenoid valve according to claim 1, characterized in that: The detection placement rack includes an upper bracket and a lower bracket, the lower bracket is fixed on the frame, and a guide column is fixed on the lower bracket, the upper bracket is located above the lower bracket and is slidably connected to the guide column, the detection position includes a lower detection position and an upper detection position, the lower detection position is arranged on the lower bracket for placing the lower end of the valve core, and the upper detection position is arranged on the upper bracket to cover the upper end of the valve core when the upper bracket moves downward.
3. The air tightness detection device for a solenoid valve according to claim 2, characterized in that: The upper detection position includes an upper connecting plate and a buffer spring, wherein the connecting plate is connected to the upper bracket through the buffer spring, and the lower detection position includes a lower connecting plate, wherein the upper connecting plate, the buffer spring and the lower connecting plate are coaxially arranged.
4. The air tightness detection device for solenoid valve according to claim 3, characterized in that: The airtight detection assembly also includes a driving member and a support frame, wherein the support frame is fixed to the top of the guide column and the upper bracket is located between the support frame and the lower bracket, and the driving member is fixed to the support frame and connected to the upper bracket to drive the upper bracket to slide along the guide column.
5. The air tightness detection device for solenoid valve according to claim 4, characterized in that: The air tightness detection device for the solenoid valve also includes a valve core detector, which is installed on the lower bracket to detect whether the valve core is placed on the lower detection position.
6. The air tightness detection device for a solenoid valve according to claim 5, characterized in that: The valve core detector comprises a photoelectric transmitter and a photoelectric receiver, and the photoelectric transmitter and the photoelectric receiver are respectively installed on both sides of the lower bracket.
7. The air tightness detection device for a solenoid valve according to claim 6, characterized in that: The valve core detector further comprises a detection bracket, which is fixed on the lower bracket for mounting the photoelectric transmitter and the photoelectric receiver, and the height of the detection bracket is higher than the height of the lower detection position.
8. The air tightness detection device for a solenoid valve according to claim 5, characterized in that: The upper support array is provided with at least two upper detection positions, and the lower support array is provided with at least two lower detection positions. The number of the valve core detectors matches the number of the lower detection positions and their positions correspond.
9. The air tightness detection device for a solenoid valve according to claim 8, characterized in that: The number of the detection racks is at least two, and at least two of the detection racks are arranged in an array along the length or width direction of the rack.