Electromagnetic valve body frequency performance detection device

Abstract

The utility model discloses an electromagnetic valve body frequency performance detection device, which relates to the technical field of electromagnetic valve detection and comprises a positioning and clamping mechanism, a pneumatic control mechanism and a frequency detection mechanism. The positioning and clamping mechanism comprises a base, an air inlet block, a clamping air cylinder and a clamping output block, the clamping air cylinder and the air inlet block are both fixed to the base, the clamping output block is fixed to a piston rod of the clamping air cylinder, and the air inlet block is provided with an air inlet flow channel used for being communicated with an air inlet of the electromagnetic valve body. The clamping output block is provided with an air outlet channel used for being communicated with one working opening of the electromagnetic valve body. The pneumatic control mechanism supplies air to the air inlet block through an air pipe communicated with the air inlet flow channel, and the frequency detection mechanism is connected to the air outlet flow channel through an air pipe. The electromagnetic valve has the advantages that the frequency detection mechanism is conveniently connected with the valve body, the stability is good, and the electromagnetic valve body is not easy to damage.

Description

Technical Field

[0001] The utility model relates to the field of electromagnetic valve detection technology, in particular to a electromagnetic valve body frequency performance detection device. Background Art

[0002] Solenoid valves are common control components in pneumatic systems. By inputting alternating current into the solenoid valve, the solenoid valve's pilot assembly drives the valve stem to move back and forth, thereby switching the solenoid valve's working position.

[0003] Taking a common two-position five-way solenoid valve as an example, its valve body has a first exhaust port R, a first working port A, an air inlet P, a second working port B and a second exhaust port C. When the valve stem reciprocates, the working position of the valve body is changed to switch between the working port A and the working port B for supplying air to the pneumatic actuator.

[0004] The frequency of the solenoid valve is an important performance of the solenoid valve body. In the prior art, the valve body frequency is usually detected by a dedicated frequency detection mechanism. Specifically, a working port of the solenoid valve is connected to the frequency detection mechanism through an air pipe. When the solenoid valve is working, the working port is intermittently connected to the air inlet, so that the air pressure fluctuation of the working port is detected by the frequency detection mechanism, that is, the frequency of the solenoid valve body can be obtained according to the frequency of the air pressure change of the working port.

[0005] In the prior art, the air pipe passage between the solenoid valve body and the frequency detection mechanism is manually disassembled and assembled through a quick connector, which has low disassembly and assembly efficiency, cannot ensure stability, and has the risk of damaging the solenoid valve body's own tooth shape when the quick connector is inserted. Summary of the invention

[0006] The utility model aims to provide a solenoid valve body frequency performance detection device, which has the advantages of convenient connection between the frequency detection mechanism and the valve body, good stability, and not easy to damage the solenoid valve body.

[0007] The above technical objectives of the utility model are achieved through the following technical solutions:

[0008] The utility model provides a solenoid valve body frequency performance detection device, which comprises a positioning clamping mechanism, a pneumatic control mechanism and a frequency detection mechanism; the positioning clamping mechanism comprises a base, an air intake block, a clamping cylinder and a clamping output block, the clamping cylinder and the air intake block are both fixed on the base, the clamping output block is fixed to the piston rod of the clamping cylinder, and the clamping output block and the air intake block are arranged opposite to each other to form a limiting area for clamping the solenoid valve body;

[0009] The air intake block is provided with an air intake passage for connecting to the air intake port of the solenoid valve body, and the clamping output block is provided with an air outlet passage for connecting to a working port of the solenoid valve body; the pneumatic control mechanism is connected to an external air source and the clamping cylinder to control the extension or retraction of the piston of the clamping cylinder; the pneumatic control mechanism supplies air to the air intake block through an air pipe connected to the air intake passage, and the frequency detection mechanism is connected to the air outlet passage through an air pipe.

[0010] Furthermore, a plurality of the intake flow channels are provided on the intake block, each of the intake flow channels penetrates the intake block toward a side of the clamping output block to form an air supply port for connecting to the air inlet, and an end of each intake flow channel away from the air supply port penetrates the intake block to form an air supply port for connecting to the pneumatic control mechanism.

[0011] Furthermore, the plurality of air delivery ports are evenly spaced apart in the horizontal direction on a side of the air intake block facing the clamping output block.

[0012] Furthermore, a first sealing gasket is provided on a side of the air intake block facing the clamping output block, and a plurality of first avoidance openings connected to the air supply openings in a one-to-one correspondence are provided on the first sealing gasket.

[0013] Furthermore, a second sealing gasket is provided on a side of the clamping output block facing the air inlet block, and a second avoidance port for connecting the outlet flow channel and the working port is provided on the second sealing gasket.

[0014] Furthermore, a stroke limit groove is provided on the base, and the clamping cylinder is installed in the stroke limit groove; a connecting block is connected to the end of the piston rod of the clamping cylinder, and a side wall of the stroke limit groove blocks the side of the connecting block toward the air intake block; the bottom of the clamping output block is higher than the stroke limit groove, and the clamping output block protrudes toward the direction of the air intake block.

[0015] Furthermore, an extension portion is provided on the upper portion of the clamping output block, and the extension portion is pressed above the connecting block and is screw-connected to the connecting block.

[0016] Furthermore, a limit block is arranged on the base, and the limit block is arranged outside one side of the limit area, and the length direction of the limit block is parallel to the extension and retraction direction of the clamping cylinder.

[0017] Furthermore, the base is provided with a slide groove extending parallel to the telescopic direction of the clamping cylinder, and the solenoid valve body is provided with a protrusion cooperating with the slide groove.

[0018] Further, the pneumatic control mechanism includes a hand-operated reversing valve, which is provided with an air source interface, a first reversing air port and a second reversing air port. The air source interface is connected to an external air source, the first reversing air port is respectively connected to the rodless chamber of the clamping cylinder and the intake air channel through an air pipe, and the second reversing air port is connected to the rod chamber of the clamping cylinder through an air pipe; the hand-operated reversing valve can switch between two modes: the air source interface is connected to the first reversing air port and the air source interface is connected to the second reversing air port.

[0019] In summary, the utility model has the following beneficial effects:

[0020] 1. In the solenoid valve body frequency performance detection device of the utility model, when detecting the frequency of the solenoid valve body, the solenoid valve body is placed in the limit area between the clamping cylinder and the air intake block on the base, and the pneumatic control mechanism controls the clamping cylinder piston rod to extend, driving the clamping output block to move toward the air intake block, thereby clamping the solenoid valve body between the air intake block and the clamping output block. The pneumatic control mechanism is connected to the intake flow channel to supply air to the intake flow channel, and the compressed gas enters the solenoid valve body through the intake flow channel. After the solenoid valve body is connected to the power supply, the valve stem reciprocates to change the working position, and the frequency detection mechanism can detect the frequency of the solenoid valve body by detecting the air pressure fluctuation of the outlet flow channel. Therefore, when the device is used for solenoid valve frequency detection, there is no need to manually disassemble and assemble the air pipe of the solenoid valve, which improves the operating efficiency and reduces the probability of damaging the solenoid valve.

[0021] 2. In the utility model, a plurality of intake flow channels are arranged on the intake block, and the plurality of intake flow channels form a plurality of air supply ports, so that different intake flow channels can be selected to supply air to the solenoid valve according to the positions of the air inlets of different solenoid valves, thereby improving the applicability of the solenoid valve body frequency performance detection device.

[0022] 3. A first sealing gasket is provided on the side of the air intake block facing the clamping output block, and / or a second sealing gasket is provided on the side of the clamping output block facing the air intake block, thereby sealing the inlet flow channel and the air inlet port and sealing the outlet flow channel and the working port, and playing a buffering role when the air intake block and the clamping output block clamp the solenoid valve body, thereby preventing the solenoid valve body from being damaged. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 The three-dimensional structure diagram of the electromagnetic valve body frequency performance detection device of one embodiment of the utility model Figure 1 .

[0024] Figure 2 The structure of the solenoid valve body of an embodiment of the utility model is shown in FIG. Figure 1 .

[0025] Figure 3The structure of the solenoid valve body of an embodiment of the utility model is shown in FIG. Figure 2 .

[0026] Figure 4 It is a schematic diagram of the top view of the structure of a solenoid valve body frequency performance detection device according to an embodiment of the utility model.

[0027] Figure 5 It is a schematic diagram of the horizontal section structure along the intake air passage of a solenoid valve body frequency performance detection device according to an embodiment of the utility model.

[0028] Figure 6 The three-dimensional structure diagram of the electromagnetic valve body frequency performance detection device of one embodiment of the utility model Figure 2 .

[0029] In the figure:

[0030] 1000, solenoid valve body frequency performance detection device; 100, positioning clamping mechanism; 110, base; 111, travel limit groove; 112, slide groove; 120, air intake block; 121, air intake channel; 122, air delivery port; 123, air supply port; 130, clamping cylinder; 140, clamping output block; 141, air outlet channel; 142, first test air port; 143, second test air port; 144, extension; 150, limit Position area; 160, first sealing gasket; 161, first avoidance port; 170, second sealing gasket; 171, second avoidance port; 180, connecting block; 190, limit block; 200, pneumatic control mechanism; 210, air source interface; 220, first reversing air port; 230, second reversing air port; 300, frequency detection mechanism; 2000, solenoid valve body; 2100, air inlet; 2200, working port; 2300, bump. DETAILED DESCRIPTION

[0031] The utility model is further described below in conjunction with the accompanying drawings.

[0032] This embodiment discloses a solenoid valve body frequency performance detection device 1000, referring to Figures 1 to 3The solenoid valve body frequency performance detection device 1000 is used for frequency detection of the solenoid valve body 2000, and includes a positioning clamping mechanism 100, a pneumatic control mechanism 200 and a frequency detection mechanism 300. The positioning clamping mechanism 100 is used to clamp and position the solenoid valve body 2000 so as to detect the solenoid valve body 2000. The pneumatic control mechanism 200 is connected to an external air source and the positioning clamping mechanism 100, and is used to control the positioning clamping mechanism 100 to clamp or release the solenoid valve body 2000, and to provide the solenoid valve body 2000 with test air pressure. The frequency detection mechanism 300 is connected to a working port 2200 of the solenoid valve body 2000, and is used to detect the air pressure fluctuation of the working port 2200 to obtain the frequency performance of the solenoid valve body 2000.

[0033] Reference Figure 1 and Figure 4 The positioning clamping mechanism 100 includes a base 110, an air intake block 120, a clamping cylinder 130 and a clamping output block 140. The pneumatic control mechanism 200 is connected to the rod chamber and the rodless chamber of the clamping cylinder 130 through two air pipes, and can control the extension and contraction of the clamping cylinder 130. The clamping cylinder 130 and the air intake block 120 are both fixed on the base 110, and the clamping output block 140 is fixed to one end of the piston rod of the clamping cylinder 130 facing the air intake block 120. The clamping output block 140 and the air intake block 120 are arranged opposite to each other to form a limiting area 150 for clamping the solenoid valve body 2000. When the piston rod of the clamping cylinder 130 extends, it drives the clamping output block 140 to move toward the air inlet block 120 to clamp the solenoid valve body 2000. When the piston rod of the clamping cylinder 130 retracts, it can drive the clamping output block 140 to separate from the solenoid valve body 2000 to release the solenoid valve body 2000.

[0034] Reference Figures 1 to 5 The air intake block 120 is provided with an air intake channel 121 for connecting the air intake port 2100 of the solenoid valve body 2000. The air intake channel 121 penetrates the opposite sides of the air intake block 120 to respectively connect the air intake port 2100 of the solenoid valve body 2000 and the pneumatic control mechanism 200. The air intake channel 121 penetrates the air intake block 120 toward the clamping output block 140 to form an air delivery port 122, and the air intake channel 121 penetrates the other side of the air intake block 120 to form an air supply port 123. The air delivery port 122 is used to connect the air intake port 2100 of the solenoid valve body 2000, and the air supply port 123 is connected to the pneumatic control mechanism 200 through an air pipe.

[0035] The clamping output block 140 is provided with an outlet flow channel 141 for communicating with a working port 2200 of the solenoid valve body 2000. One end of the outlet flow channel 141 penetrates the clamping output block 140 toward the side of the air inlet block 120 to form a first test air port 142, and the other end of the outlet flow channel 141 penetrates the upper end of the clamping output block 140 to form a second test air port 143. The first test air port 142 can be correspondingly communicated with a working port 2200 of the solenoid valve body 2000, and the second test air port 143 is connected to the frequency test mechanism through an air pipe.

[0036] Therefore, when detecting the frequency of the solenoid valve body 2000, the solenoid valve body 2000 is placed in the limiting area 150 between the clamping cylinder 130 and the air intake block 120 on the base 110, and the pneumatic control mechanism 200 controls the piston rod of the clamping cylinder 130 to extend, driving the clamping output block 140 to move toward the air intake block 120, thereby clamping the solenoid valve body 2000 between the air intake block 120 and the clamping output block 140. The pneumatic control mechanism 200 is connected to the air intake channel 121 to supply air to the air intake channel 121, and the compressed gas enters the solenoid valve body 2000 through the air intake channel 121. After the solenoid valve body 2000 is powered on, the valve stem reciprocates to change the working position, and the frequency detection mechanism 300 can detect the frequency of the solenoid valve body 2000 by detecting the air pressure fluctuation of the air outlet channel 141. After the detection is completed, the pneumatic control mechanism 200 controls the clamping cylinder 130 to retract to release the solenoid valve body 2000, and the solenoid valve body 2000 can be removed from the limiting area 150. When the device is used to detect the frequency of the solenoid valve, there is no need to manually disassemble and assemble the air pipe of the solenoid valve body 2000, which improves the operating efficiency and reduces the probability of damaging the solenoid valve.

[0037] In this embodiment, a plurality of intake ducts 121 are provided on the intake block 120, and each intake duct 121 penetrates the intake block 120 toward the side of the clamping output block 140 to form an air supply port 122 for connecting to the air inlet 2100, and one end of each intake duct 121 away from the air supply port 122 penetrates the intake block 120 to form an air supply port 123 for connecting to the pneumatic control mechanism 200.

[0038] Among them, a plurality of air supply ports 122 are evenly spaced and arranged in the horizontal direction on the side of the air intake block 120 facing the clamping output block 140. Thus, a plurality of air intake channels 121 form a plurality of air supply ports 122, so that different air intake channels 121 can be selected to supply air to the solenoid valve according to the positions of different solenoid valve air intake ports 2100, thereby improving the applicability of the solenoid valve body frequency performance detection device 1000.

[0039] A first sealing gasket 160 is provided on the side of the air intake block 120 facing the clamping output block 140, and a plurality of first avoidance ports 161 are provided on the first sealing gasket 160, which are connected to the air supply ports 122 in a one-to-one correspondence. A second sealing gasket 170 is provided on the side of the clamping output block 140 facing the air intake block 120, and a second avoidance port 171 connected to the first test air port 142 is provided on the second sealing gasket 170. Thus, the gap between the inlet flow channel 121 and the air inlet port 2100 is sealed by the first sealing gasket 160, and the gap between the outlet flow channel 141 and the working port 2200 is sealed by the second sealing gasket 170, so as to ensure the air tightness of the solenoid valve body 2000 during the frequency detection, thereby making the detection result more accurate. At the same time, the first sealing gasket 160 and the second sealing gasket 170 play a buffering role when the air intake block 120 and the clamping output block 140 clamp the solenoid valve body 2000, so as to prevent the solenoid valve body 2000 from being damaged.

[0040] Reference Figure 6 , a connection block 180 is connected to the end of the clamping cylinder 130, and the clamping output block 140 is fixed on the connection block 180. Specifically, the clamping output block 140 is arranged on the side of the connection block 180 facing the air intake block 120, and an extension portion 144 is horizontally extended from the upper end of the clamping output block 140 toward the upper side of the connection block 180, and the connection block 180 fits in the right angle area formed by the extension portion 144 and the clamping output block 140. The extension portion 144 is fixed to the connection block 180 by screws. In this way, the connection between the clamping output block 140 and the connection block 180 is compact and reliable, and the disassembly and assembly of the clamping output block 140 and the clamping cylinder 130 is facilitated.

[0041] Reference Figures 1 to 6 A stroke limit groove 111 is provided on the base 110. The stroke limit groove 111 is arranged on one side of the limit area 150, and the limit area 150 is higher than the stroke limit groove 111. The clamping cylinder 130 is installed in the stroke limit groove 111. One side wall of the stroke limit groove 111 blocks the side of the connecting block 180 facing the air intake block 120, and the bottom of the clamping output block 140 is higher than the stroke limit groove 111, and the clamping output block 140 protrudes in the direction of the air intake block 120. When the clamping cylinder 130 is extended, the connecting block 180 can move a certain distance in the stroke limit groove 111, and at this time, the protruding part of the clamping output block 140 enters the limit area 150 to clamp the solenoid valve body 2000. When the clamping output block 140 and the air intake block 120 clamp the solenoid valve body 2000, the connecting block 180 abuts against the side wall of the stroke limit groove 111. The stroke limit groove 111 blocks the connecting block 180 so that the clamping cylinder 130 cannot continue to extend, thereby avoiding damage to the solenoid valve body 2000.

[0042] A limit block 190 is provided on the base 110, and the limit block 190 is provided outside one side of the limit area 150. The length direction of the limit block 190 is parallel to the extension direction of the clamping cylinder 130. The limit block 190 limits the solenoid valve body 2000 in a direction perpendicular to the extension direction of the clamping cylinder 130, further making the solenoid valve body 2000 accurately positioned, and facilitating the frequency performance detection of the solenoid valve body 2000.

[0043] The base 110 is provided with a slide groove 112 extending parallel to the telescopic direction of the clamping cylinder 130, and the solenoid valve body 2000 is provided with a convex block 2300 cooperating with the slide groove 112. Through the cooperation between the convex block 2300 and the slide groove 112, the solenoid valve body 2000 moves more stably when clamping.

[0044] Reference Figure 5 In this embodiment, the pneumatic control mechanism 200 includes a hand-operated reversing valve, which is provided with an air source interface 210, a first reversing air port 220, and a second reversing air port 230. The air source interface 210 is connected to an external air source, the first reversing air port 220 is respectively connected to the rodless cavity of the clamping cylinder 130 and the inlet flow channel 121 through an air pipe, and the second reversing air port 230 is connected to the rod cavity of the clamping cylinder 130 through an air pipe; the hand-operated reversing valve can be switched between two modes: the air source interface 210 is connected to the first reversing air port 220 and the air source interface 210 is connected to the second reversing air port 230.

[0045] The above description is only a preferred embodiment of the present utility model, so all equivalent changes or modifications made according to the structure, features and principles described in the scope of the present utility model patent application are included in the scope of the present utility model patent application.

Claims

1. A solenoid valve body frequency performance detection device, characterized in that: The invention comprises a positioning clamping mechanism (100), a pneumatic control mechanism (200) and a frequency detection mechanism (300); the positioning clamping mechanism (100) comprises a base (110), an air intake block (120), a clamping cylinder (130) and a clamping output block (140); the clamping cylinder (130) and the air intake block (120) are both fixed on the base (110); the clamping output block (140) is fixed to the piston rod of the clamping cylinder (130); the clamping output block (140) and the air intake block (120) are arranged facing each other to form a limiting area (150) for clamping a solenoid valve body (2000); The air intake block (120) is provided with an air intake passage (121) for communicating with an air intake port (2100) of the solenoid valve body (2000); the clamping output block (140) is provided with an air outlet passage (141) for communicating with a working port (2200) of the solenoid valve body (2000); the pneumatic control mechanism (200) is connected to an external air source and the clamping cylinder (130) to control the extension or retraction of the piston of the clamping cylinder (130); the pneumatic control mechanism (200) supplies air to the air intake block (120) through an air pipe connected to the air intake passage (121); and the frequency detection mechanism (300) is connected to the air outlet passage (141) through an air pipe.

2. A solenoid valve body frequency performance detection device as claimed in claim 1, characterized in that: The air intake block (120) is provided with a plurality of the air intake channels (121), each of the air intake channels (121) penetrates the air intake block (120) on one side facing the clamping output block (140) to form an air supply port (122) for communicating with the air intake port (2100), and one end of each of the air intake channels (121) away from the air supply port (122) penetrates the air intake block (120) to form an air supply port (123) for connecting with the pneumatic control mechanism (200).

3. A solenoid valve body frequency performance detection device as claimed in claim 2, characterized in that: The plurality of air delivery ports (122) are evenly spaced and arranged in a horizontal direction on a side of the air intake block (120) facing the clamping output block (140).

4. A solenoid valve body frequency performance detection device as claimed in claim 2, characterized in that: A first sealing gasket (160) is provided on one side of the air intake block (120) facing the clamping output block (140), and a plurality of first avoidance openings (161) are provided on the first sealing gasket (160) and are in one-to-one correspondence with the air supply openings (122).

5. A solenoid valve body frequency performance detection device as claimed in claim 1, characterized in that: A second sealing gasket (170) is provided on the side of the clamping output block (140) facing the air inlet block (120), and a second avoidance opening (171) for connecting the outlet flow channel (141) and the working port (2200) is provided on the second sealing gasket (170).

6. A solenoid valve body frequency performance detection device as claimed in claim 1, characterized in that: The base (110) is provided with a stroke limit groove (111), and the clamping cylinder (130) is installed in the stroke limit groove (111); the piston rod end of the clamping cylinder (130) is connected to a connecting block (180), and a side wall of the stroke limit groove (111) blocks the connecting block (180) from facing the air intake block (120); the bottom of the clamping output block (140) is higher than the stroke limit groove (111), and the clamping output block (140) protrudes in the direction toward the air intake block (120).

7. A solenoid valve body frequency performance detection device as claimed in claim 6, characterized in that: An extension portion (144) is provided on the upper portion of the clamping output block (140); the extension portion (144) is pressed above the connection block (180) and is screw-connected to the connection block (180).

8. A solenoid valve body frequency performance detection device as claimed in claim 1, characterized in that: A limit block (190) is provided on the base (110), and the limit block (190) is arranged outside one side of the limit area (150), and the length direction of the limit block (190) is parallel to the extension and retraction direction of the clamping cylinder (130).

9. A solenoid valve body frequency performance detection device as claimed in claim 1, characterized in that: The base (110) is provided with a slide groove (112) extending parallel to the telescopic direction of the clamping cylinder (130), and the solenoid valve body (2000) is provided with a protrusion (2300) cooperating with the slide groove (112).

10. A solenoid valve body frequency performance detection device as claimed in claim 1, characterized in that: The pneumatic control mechanism (200) comprises a hand-operated reversing valve, the hand-operated reversing valve being provided with an air source interface (210), a first reversing air port (220) and a second reversing air port (230), the air source interface (210) being connected to an external air source, the first reversing air port (220) being respectively connected to the rodless chamber of the clamping cylinder (130) and the inlet flow channel (121) through an air pipe, and the second reversing air port (230) being connected to the rod chamber of the clamping cylinder (130) through an air pipe; the hand-operated reversing valve can be switched between two modes: the air source interface (210) being connected to the first reversing air port (220) and the air source interface (210) being connected to the second reversing air port (230).

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