JP5237047B2 - Attachment of electromagnetic valve testing machine and electromagnetic valve testing machine using the same - Google Patents

Description

  The present invention relates to an attachment for a solenoid valve tester used for checking the operation of a solenoid valve, and a solenoid valve tester.

  2. Description of the Related Art Conventionally, tests have been performed on a solenoid valve, for example, whether it can be normally driven or there is no leakage of a valve body at regular intervals. Various studies or developments have been made on electromagnetic valve testing machines for testing this electromagnetic valve.

  For example, Patent Document 1 discloses a workpiece chucking device that provides a highly safe workpiece chucking device that has a small number of parts and does not cause a worker to pinch a hand.

  The workpiece chucking device described in Patent Document 1 operates the chucking lever by switching and supplying the pressure fluid supplied from the pressure fluid source to the fluid pressure cylinder to which the chucking lever is connected via the direction switching valve. In the workpiece chucking device, the fluid pressure cylinder is set so that the piston pressure receiving area of the head side chamber is larger than the piston pressure receiving area of the rod side chamber, and a pressure fluid is introduced from the direction switching valve to the head side chamber to The chucking lever is configured such that pressure fluid is introduced into the rod side chamber and the chucking lever is unchucked, and the steady position connecting the rod side chamber of the fluid pressure cylinder and the direction switching valve, and the rod side chamber and the head side chamber are connected. A communication switching valve that switches to a communication position that communicates is provided.

Japanese Patent Laid-Open No. 11-300563

However, in the workpiece chucking device of Patent Document 1, when the electromagnetic valve is attached to the test machine, a guide rod is inserted into the attachment hole of the electromagnetic valve, is chucked with a weak force, temporarily fixed, and then strong. The solenoid valve is chucked with force. After fixing the solenoid valve, the fluid connection for supplying compressed air to the solenoid valve testing machine and the electrical connection for controlling the solenoid valve and inputting signals from various sensors were conducted. To do. For this reason, even when testing a large number of solenoid valves of the same type, it is necessary to make these connections individually, and the time and effort required for setting up the connections is tremendous, resulting in a time loss.
In addition, the work chucking device described in Patent Document 1 can be used to insert a guide rod into the mounting hole of the solenoid valve and to perform two steps of temporary fixing and permanent fixing when mounting the solenoid valve. It took time and further time was lost.

An object of the present invention is to provide an attachment for a solenoid valve testing machine that can easily fix a solenoid valve in a solenoid valve test, and a solenoid valve testing machine using the attachment.
Another object of the present invention is an attachment for a solenoid valve tester capable of easily fixing, electrically connecting, and fluidly connecting a solenoid valve in a solenoid valve test in a short time in one step, and the same. It is to provide a solenoid valve testing machine.

(1)
A mounting attachment for a solenoid valve testing machine according to the present invention is a mounting attachment for a solenoid valve testing machine that is mounted on a common base of a testing machine body and tests a plurality of types of solenoid valves. A predetermined gap is formed between the holding portion that is disposed below the position, slidably holds the solenoid valve, the port surface of the solenoid valve, and the attachment attachment port surface, and the attachment attachment port surface is electromagnetically It includes a positioning portion that can be moved back and forth in the mounting direction for attaching the valve, and a pressing mechanism portion that presses the electromagnetic valve held by the holding portion on the side of the mounting attachment port surface.

  In the attachment for the electromagnetic valve testing machine according to the present invention, the holding portion is disposed below the electromagnetic valve attachment position of the attachment. The electromagnetic valve is slidably held by the holding portion. The positioning portion forms a predetermined gap between the port surface of the electromagnetic valve and the attachment attachment port surface, and advances and retracts the electromagnetic valve toward the attachment attachment port surface. The pressing mechanism unit presses the electromagnetic valve held by the holding unit on the attachment attachment port surface side.

  In this case, the electromagnetic valve can be easily held by the holding portion, and it is not necessary for the operator to perform positioning while being influenced by the size and weight of the electromagnetic valve. In addition, the positioning part can prevent abrupt contact between the port surface of the solenoid valve and the mounting attachment port surface even if the operator does not pay particular attention, so the port surface of the solenoid valve and the mounting attachment port surface Can prevent damage. Furthermore, the predetermined gap between the port surface of the electromagnetic valve and the attachment attachment port surface is gradually reduced by the pressing mechanism, and the port surface of the electromagnetic valve and the attachment attachment port surface can be held in close contact with each other. As a result, the operator can mount the solenoid valve on the attachment holder and perform the test of the solenoid valve in a short time with a single touch, improving work efficiency without paying special attention. However, the work load can be reduced.

(2)
It is preferable that a biasing means for biasing the positioning portion in a direction away from the attachment port surface is provided.

  In this case, since the positioning portion is biased by the biasing means in the direction away from the attachment attachment port surface, even if the solenoid valve is placed without paying special attention, Collision with the attachment attachment port surface can be prevented. For example, a spring can be provided as an urging means, and an elastic body other than the spring can be provided, and the electromagnetic valve is protected by further providing a buffer, a rubber member, etc. on the contact surface of the positioning portion with the electromagnetic valve. can do. As a result, the operator can prevent the electromagnetic valve and the attachment from being lost without paying special attention when attaching the electromagnetic valve.

(3)
The pressing mechanism section has a rod member and a cylinder device, the cylinder device is provided on one end side of the rod member, the rotation end is provided on the rod member, and the other end side of the rod member presses the electromagnetic valve by the principle of the lever. Then, the electromagnetic valve may be tightly fixed to the attachment.

  In this case, in the pressing mechanism portion, the cylinder device is provided on one end side of the rod member, the rotation end is provided on the rod member, the other end side of the rod member presses the electromagnetic valve according to the principle of the lever, and the attachment attachment is electromagnetically Since the valve can be fixed in close contact, the operator simply places the electromagnetic valve on the holding portion, and the electromagnetic valve is automatically fixed in close contact with the attachment by the action of the pressing mechanism. As a result, the operator can place the electromagnetic valve on the mounting attachment holding part and start the test of the electromagnetic valve in a short time in one process, thus improving the work efficiency and reducing the work load. be able to.

(4)
The mounting attachment includes a first electrical connection portion to which an electrical signal from the testing machine main body is input, a portion to which the electrical signal input from the first electrical connection portion is output, and a plurality of types of electromagnetic valves are attached. And a second electrical connection portion provided so as to be exposed.

  In this case, the first electrical connection portion and the second electrical connection portion are provided on the attachment. The second electrical connection portion is provided for the electrode of the electromagnetic valve attached to the attachment attachment. When the electromagnetic valve is attached to the attachment attachment, the electrode of the electromagnetic valve is attached to the second electric electrode of the attachment attachment. Connected with the connecting part.

  As a result, the operator can make an electrical connection simply by attaching a solenoid valve to the mounting attachment, and does not need to make an electrical connection individually. That is, the electrical connection of the solenoid valve can be easily performed in one step. Moreover, since the testing machine main body has a common base, it is possible to easily test other types of electromagnetic valves by exchanging the attachments.

(5)
The attachment attachment may be provided with a second electrical connection portion on the other end side of the bar member.

  In this case, since the second electrical connection portion is provided on the other end side of the rod member, the solenoid valve can be attached with one touch even to the solenoid valve having the electrode in the direction opposite to the port surface of the solenoid valve. A solenoid valve test can be performed.

(6)
The attachment is provided with a first fluid connecting portion that takes in fluid from the main body of the tester, and a second fluid that is communicated with the first fluid connecting portion and exposed to a portion where a plurality of types of solenoid valves are attached. And a connecting portion.

  In this case, the labor for fluid connection in the electromagnetic valve testing machine can be reduced. That is, the positions of the fluid inlets of the plurality of types of solenoid valves differ for each type. However, for example, when testing a number of solenoid valves of the same type in succession, it was necessary to make fluid connection with the testing machine every time one solenoid valve was tested. Since the 2nd fluid connection part which connects is provided, fluid connection can be performed only by attaching an electromagnetic valve to an attachment attachment, and it becomes unnecessary to perform fluid connection individually. That is, the fluid connection of the solenoid valve can be easily performed in a short time of one process. Moreover, since it has a common pedestal, it is possible to test other types of solenoid valves by exchanging the attachments.

(7)
The attachment attachment may be provided with a second fluid connection portion along a direction in which the attachment attachment is pressed by the pressing mechanism of the attachment attachment port surface.

  In this case, since the second fluid connecting portion is provided in the direction pressed by the pressing mechanism, the electromagnetic valve can be pressed by the pressing mechanism, and fluid leakage from the fluid connecting portion can be prevented. it can.

(8)
An electromagnetic valve testing machine according to the present invention is provided with the electromagnetic valve testing machine mounting attachment according to any one of claims 1 to 7.

  The electromagnetic valve testing machine according to the present invention includes an attachment that has a holding portion disposed below the electromagnetic valve attachment position. The electromagnetic valve is slidably held by the holding portion. The positioning portion forms a predetermined gap between the port surface of the electromagnetic valve and the attachment attachment port surface, and advances and retracts the electromagnetic valve toward the attachment attachment port surface. The pressing mechanism unit presses the electromagnetic valve held by the holding unit on the attachment attachment port surface side.

  In this case, by providing the attachment attachment, it is possible to reduce the labor for performing the electrical connection of the worker. That is, the positions of the electrodes of the plurality of types of solenoid valves differ for each type. However, for example, in the case where a large number of solenoid valves of the same kind are continuously tested, it is necessary to make an electrical connection with the testing machine every time one solenoid valve is tested, but the first electrical valve is attached to the attachment attachment. Since the second electrical connection portion that is electrically connected to the connection portion is provided, the electrical connection can be performed only by attaching the electromagnetic valve to the attachment attachment, and it is not necessary to perform the electrical connection individually. That is, the electrical connection of the solenoid valve can be easily performed in one step. Moreover, since it has a common pedestal, it is possible to easily test other types of electromagnetic valves by exchanging the attachments. Further, the electromagnetic valve can be easily held by the holding portion of the attachment attachment, and it is not necessary for the operator to perform positioning while being influenced by the size and weight of the electromagnetic valve. In addition, the positioning part can prevent abrupt contact between the port surface of the solenoid valve and the mounting attachment port surface even if the operator does not pay particular attention, so the port surface of the solenoid valve and the mounting attachment port surface Can prevent damage. Furthermore, the predetermined gap between the port surface of the electromagnetic valve and the attachment attachment port surface is gradually reduced by the pressing mechanism, and the port surface of the electromagnetic valve and the attachment attachment port surface can be held in close contact with each other. As a result, the operator can mount the solenoid valve on the attachment holder and perform the test of the solenoid valve in a short time with a single touch, improving work efficiency without paying special attention. However, the work load can be reduced.

  Embodiments according to the present invention will be described below. In the present embodiment, the case where the attachment of the electromagnetic valve tester is applied to the attachment of the electromagnetic valve tester of a railway vehicle will be described. In addition, this invention is not limited to the attachment of an electromagnetic valve testing machine of a railway vehicle, and an electromagnetic valve testing machine, It can apply to the attachment of any other electromagnetic valve testing machine, and an electromagnetic valve testing machine. .

(One embodiment)
FIG. 1 is a schematic view showing an example of an electromagnetic valve testing machine 100 according to an embodiment of the present invention. FIG. 1 (a) shows a front view of the electromagnetic valve testing machine 100, and FIG. The side view of the electromagnetic valve testing machine 100 is shown.

  As shown in FIG. 1A, the electromagnetic valve testing machine 100 includes a testing machine main body 101 and a control box 102. The control box 102 is provided with a control panel, a computer, a keyboard, a mouse, a printer, and the like (not shown). As shown in FIG. 1A, the tester main body 101 is provided with signal lamps 900a and 900b at the top, and a liquid crystal display and a measuring instrument 800.

  These measuring instruments 800 use a pressure transducer and a pressure sensor. For example, a strain gauge pressure transducer with a built-in amplifier is used for air pressure measurement, and a semiconductor pressure sensor with a built-in amplifier is used for leak measurement and air source pressure measurement. The measuring instrument 800 also includes an electropneumatic regulator that converts an electrical signal into air pressure.

  Further, as shown in FIG. 1B, the test machine main body 101 is provided with a test table 111 having a horizontal portion, and two mounting tables 200a and 200b are provided on the surface of the test table 111. It is done. The mounting bases 200a and 200b are denoted by reference numerals for the sake of explanation, but both are made of the same shape. The attachments 300 are individually attached to the mounting bases 200a and 200b. Hereinafter, the mounting details of the mounting bases 200a and 200b and the attachment 300 will be described.

  FIG. 2 is a schematic perspective view showing the structure of the attachment 300, and FIG. 3 is a schematic perspective view for explaining a connection state of the mounting bases 200a and 200b and the attachment 300. As shown in FIG.

First, as shown in FIG. 3, the mounting bases 200 a and 200 b mainly include an attachment mounting base (hereinafter referred to as a base portion) 201 and an attachment chucking mechanism 230 a extending vertically upward from the base portion 201. 230b.
In the present embodiment, the attachment chucking mechanisms 230a and 230b are air clamp mechanisms, and have attachment chucking levers 231a and 231b and cylinders 232a and 232b. Details of the attachment chucking mechanisms 230a and 230b will be described later.

  Also, as shown in FIG. 3, the upper surface of the base portion 201 is composed of attachment positioning pins 210a, 210b, electrical connection terminals 241, 242, 243, air port connection portions 251, 252, 253, and three limit switches. An attachment type recognition switch 260 is provided. The air passages of the air port connecting portions 251, 252, and 253 are opened and closed by an electromagnetic on-off valve (not shown). As this electromagnetic on-off valve, a direct-acting small electromagnetic valve or the like can be used for the small flow circuit, and a pilot electromagnetic valve type membrane plate on-off valve can be used for the large flow circuit. The electrical connection terminals 241, 242, and 243 output an electrical signal output from the testing machine main body 101 for controlling the solenoid valve 400, and when the solenoid valve 400 is provided with a pressure sensor or the like, This pressure sensor is used to input an electrical signal to the testing machine main body 101.

  On the other hand, as shown in FIG. 2 and FIG. 3, the attachment 300 shows a pair of holding rods 320 a and 320 b, electrical connection terminals 371, 372, 373, air port connection parts 351, 352, 353, and types of electromagnetic valves. Attachment type information section 360, electrical connection terminal 370, solenoid valve air port connection sections 381, 382, 383, solenoid valve collision prevention mechanisms 385a, 385b, and solenoid valve chucking mechanisms 390a, 390b for holding the solenoid valves are provided. .

As shown in FIG. 2, the pair of holding bars 320 a and 320 b are fixedly provided below the port surface of the attachment 300. The electromagnetic valve collision prevention mechanisms 385a and 385b are provided with cylindrical members 386a and 386b, link mechanisms 387a and 387b, and springs 388a and 388b. The link mechanisms 387a and 387b are rotatably attached to fulcrums provided on the holding portions 389a and 389b, respectively.
The solenoid valve chucking mechanisms 390a and 390b are provided with cylinder mechanisms 391a and 391b, shafts 392a and 392b, and pressing rod members 393a and 393b.

  In the electromagnetic valve collision prevention mechanisms 385a and 385b of FIG. 2, the outer peripheral curved surfaces of the cylindrical members 386a and 386b are respectively connected to the electromagnetic valve air port connection portions 381 and 382 shown in FIG. 3 when the electromagnetic valve 400 is not attached. , 383 is provided so as to protrude from the port surface on which 383 is provided (front side in FIG. 2). Further, the upper ends of the cylindrical members 386a and 386b are respectively tapered. The effect of this taper processing will be described later. One end side of link mechanisms 387a and 387b is connected to the cylindrical members 386a and 386b, and springs 388a and 388b are connected to the other end side of the link mechanisms 387a and 387b. It should be noted that a stopper (not shown) is provided on the holding portions 389a and 389b so as to protrude from the port surface provided with the solenoid valve air port connection portions 381, 382 and 383 shown in FIG. The stoppers limit the rotation of the link mechanisms 387a and 387b in the forward direction of FIG.

  Further, one end side of the pressing rod members 393a and 393b is connected to the cylinder mechanisms 391a and 391b of the electromagnetic valve chucking mechanisms 390a and 390b in FIG. 2, and the other end side of the pressing rod members 393a and 393b is connected to the electromagnetic mechanism. A pressure applying unit that applies pressure to the valve 400 and an electrical connection terminal 370 are provided. In addition, rotatable shafts 392a and 392b are provided at the center of the pressing rod members 393a and 393b. Detailed operations of the electromagnetic valve chucking mechanisms 390a and 390b will be described later.

  Although not shown, the cylinder mechanisms 391a and 391b are made of an air clamp mechanism using a polyurethane tube or a nylon tube, and the joint is made of a simple insertion one-touch method. Although not shown in FIGS. 2 and 3, a handle or the like that an operator holds when moving the attachment 300 may be provided on the attachment.

  Here, as shown in FIG. 3, the operator holds the attachment 300 and attaches it to the mounting bases 200a and 200b in the direction of the arrow R1 from above.

Next, FIG. 4 is a schematic process diagram for explaining an example process in which the attachment 300 is attached to the mounting bases 200a and 200b shown in FIGS.
4A, 4B, and 4C show a process in which the attachment 300 is attached to the mounting bases 200a and 200b in order.

  First, as shown in FIG. 4A, the attachment 300 is lowered from above on the mounting bases 200 a and 200 b, and the attachment positioning pins 210 a and 210 b on the base portion 201 are provided in holes 310 a and 310 b provided on the lower surface of the attachment 300. Respectively.

  Thereby, the attachment 300 is disposed at a predetermined position of the base portion 201. Note that the attachment positioning pins 210a and 210b on the base portion 201 are not evenly arranged and are provided so as to prohibit the reverse insertion of the attachment 300 in relation to the holes 310a and 310b provided on the lower surface of the attachment 300. Yes.

  Subsequently, as shown in FIG. 4B, the attachment chucking levers 231 a and 231 b of the attachment chucking mechanisms 230 a and 230 b are slid and moved upward of the attachment 300. The attachment chucking levers 231a and 231b are pivotally supported in the vicinity of the attachment chucking support portions 233a and 233b.

  Finally, as shown in FIG. 4C, the cylinders 232a and 232b of the attachment chucking mechanisms 230a and 230b extend in the direction of the arrow F3, and the other end sides of the attachment chucking levers 231a and 231b are directed vertically upward. Pushed up. Accordingly, the attachment 300 is pressed from the vertically upward direction to the vertically downward direction (the direction of the arrow F2) by one end side of the pivoted attachment chucking levers 231a and 231b. As a result, the attachment 300 is pressed and attached to the mounting bases 200a and 200b. Further, in this case, since the attachment chucking mechanisms 230a and 230b are formed of an air clamp mechanism, the operator does not need a tool and can attach the attachment 300 to the mounting bases 200a and 200b with one touch.

5, 6, and 7 are schematic steps for explaining an example process in which the electromagnetic valve 400 is attached to the attachment 300 attached to the mounting bases 200 a and 200 b shown in FIGS. 2 and 3. FIG.
5, 6, and 7 show steps in which the electromagnetic valve 400 is attached to the attachment 300 in order.

  First, as shown in FIG. 5, the telescopic parts of the cylinder mechanisms 391a and 391b of the electromagnetic valve chucking mechanisms 390a and 390b are moved in the direction of the arrow M2. Thereby, it arrange | positions so that the pressure addition part of press bar member 393a, 393b may not contact the solenoid valve 400. FIG. Thereafter, the electromagnetic valve 400 is inserted from above the attachment 300. The electromagnetic valve 400 is held by a pair of holding rods 320a and 320b.

  Further, in this case, the electromagnetic valve collision preventing mechanisms 385a and 385b are provided so that a gap is formed between the port surface side (upward in FIG. 5) of the electromagnetic valve 400 and the outer peripheral curved surface of the cylindrical members 386a and 386b. ing. In this case, since the taper processing is applied to the upper end sides of the cylindrical members 386a and 386b, there is play even when the electromagnetic valve 400 is inserted, so that damage to the electromagnetic valve 400 can be prevented. .

Subsequently, as shown in FIG. 6, the cylinder mechanisms 391a and 391b of the electromagnetic valve chucking mechanisms 390a and 390b start to extend and are moved in the direction of the arrow -M2. Accordingly, the pressing rod members 393a and 393b rotate in the direction of the arrow R2 or the direction of the arrow −R2 with the shafts 392a and 392b as axes. As a result, the electromagnetic valve 400 is moved upward in the drawing, and the port surface of the electromagnetic valve 400 comes into contact with the cylindrical members 386a and 386b of the electromagnetic valve collision prevention mechanisms 385a and 385b.
In addition, the electrical connection terminal 410 provided opposite to the port surface of the electromagnetic valve 400 starts to contact the electrical connection terminal 370 of the attachment 300.

  Finally, as shown in FIG. 7, the cylinder mechanisms 391a and 391b of the electromagnetic valve chucking mechanisms 390a and 390b extend and are further moved in the direction of the arrow -M2. Accordingly, the pressing rod members 393a and 393b are further rotated in the direction of the arrow R2 or the direction of the arrow −R2 with the shafts 392a and 392b as the axes. In addition, the electrical connection terminal 370 on the other end side of the pressing rod members 393a and 393b is securely connected to the electrical connection terminal 410 of the solenoid valve 400.

  At the same time, the springs 388a and 388b of the electromagnetic valve collision prevention mechanisms 385a and 385b are extended, the link mechanisms 387a and 387b rotate in the direction of the arrow R3 or the arrow -R3, and the cylindrical members 386a and 386b move (on the drawing). Direction). The electromagnetic valve collision prevention mechanisms 385a and 385b may be mechanisms that interlock with the driving of the cylinder mechanisms 391a and 391b of the electromagnetic valve chucking mechanisms 390a and 390b using an appropriate link. Accordingly, the outer peripheral curved surfaces of the cylindrical members 386a and 386b can be reliably protruded from the port surface on which the solenoid valve air port connection portions 381, 382 and 383 are provided in a state where the solenoid valve 400 is not attached. it can.

  As a result, the solenoid valve 400 is securely pressed and attached to the attachment 300, and the air port connection portions 421, 422, and 423 provided on the port surface of the solenoid valve 400 are connected to the solenoid valve air port connection portions 381, 382, and 383. And the electrical connection terminal 410 provided on the side opposite to the port surface of the solenoid valve 400 is connected to the electrical connection terminal 370 of the attachment 300. In this case, since the electromagnetic valve chucking mechanisms 390a and 390b are formed of an air clamp mechanism, the operator does not need a tool, and the electromagnetic valve 400 can be attached to the attachment 300 in a short time with one touch.

  8 and 9 are schematic cross-sectional views for explaining the connection of the electromagnetic valve 400, the attachment 300, and the mounting bases 200a and 200b.

  First, as shown in FIG. 8, the solenoid valve 400 is provided with an electrical connection terminal 410 and air port connection portions 421, 422, and 423 for inputting a control signal of the solenoid valve. Further, the electromagnetic valve 400 may be provided with a sensor such as a pressure sensor. In this case, the signal of this sensor is output via the electrical connection terminal 410. In addition, the attachment 300 has an electrical connection terminal 370, electrical connection terminals 371, 372, 373, solenoid valve air port for outputting a control signal of the solenoid valve or inputting a sensor signal provided in the solenoid valve 400. Connection portions 381, 382, 383 and air port connection portions 351, 352, 353 are provided. The electrical connection terminal 370 and the electrical connection terminals 371, 372, and 373 are electrically connected inside the attachment 300. Here, in addition to direct electrical wiring, conduction is indirect, for example, a semiconductor or microcomputer is interposed between the electrical connection terminal 370 and the electrical connection terminals 371, 372, and 373. It is a concept that includes. Further, the solenoid valve air port connection portions 381, 382, 383 and the air port connection portions 351, 352, 353 are communicated inside the attachment 300. In addition, the mounting bases 200a and 200b are provided with air port connection portions 251, 252, and 253, and electrical connection terminals 241, 242, and 243, respectively.

  As shown in FIG. 8, force is applied in the direction of arrow M5 by the electromagnetic valve chucking mechanisms 390a and 390b, and the air port connection portions 421, 422 and 423 and the electromagnetic valve air port connection portions 381, 382 and 383 are not shown. The electrical connection terminal 410 and the electrical connection terminal 370 are firmly connected to each other through an O-ring or a gasket.

  Further, force is applied in the direction of arrow F2 by the attachment chucking mechanisms 230a, 230b, and the air port connection portions 351, 352, 353 and the air port connection portions 251, 252, 253 are closely connected to each other, and the electric connection terminal 371 , 372, 373 and electrical connection terminals 241, 242, 243 are firmly connected.

  Furthermore, as shown in FIG. 9, the attachment type information unit 360 and the attachment type recognition switch 260 are firmly connected.

  Next, FIG. 10 is a schematic diagram for explaining the types of attachments 300 that are provided each time the type of the electromagnetic valve 400 is different. FIG. 9A is a schematic diagram for explaining one attachment 300, and FIG. 9B is a schematic diagram for explaining another attachment 300a.

  First, as shown in FIG. 10A, the electrical connection terminal 370 of the attachment 300 is disposed on the side opposite to the port surface of the attachment 300. However, as shown in FIG. The electrical connection terminal 370a is disposed on the port surface of the attachment 300a. This arrangement is provided according to the arrangement of the electrical connection terminals of the electromagnetic valves.

  Further, as shown in FIG. 10A, the solenoid valve air port connection portions 381, 382, and 383 are provided on the port surface of the attachment 300, and as shown in FIG. Connection portions 381a, 382a, and 383a are also provided on the port surface of the attachment 300. Similar to the electrical connection terminals 370 and 370a, the arrangement of these solenoid valve air port connection portions is provided according to the arrangement of the air port connection portions of the solenoid valve.

  Note that the attachment type information units 360 and 360a of the attachments 300 and 300a shown in FIGS. 10A and 10B are provided so as to contact the attachment type recognition switch in different forms in order to indicate individual attachment types. ing.

For example, as shown in FIG. 10 (a), among the three limit switches of the attachment type recognition switch 260, in order to turn on only the limit switch located at the center, the portion facing this limit switch protrudes. An attachment type information section 360 of the attachment 300 is configured.
On the other hand, in FIG. 10B, of the three limit switches of the attachment type recognition switch 260, the attachment 300 of the attachment 300 is protruded so that only the limit switch located on the right side is turned on. The attachment type information part 360a is configured.
Therefore, since the difference between the attachment 300 and the attachment 300a can be automatically recognized by the electromagnetic valve tester 100, it is not necessary for the operator to input the difference between the attachment 300 and the attachment 300a to the electromagnetic valve tester 100. Work can be simplified, and work mistakes can be eliminated.

In the present embodiment, the attachment type information units 360 and 360a are mechanically configured. For example, information for recognizing the type of attachment includes one-dimensional or two-dimensional barcode, IC tag, electromagnetic You may memorize | store by an objective means. In this case, the attachment type recognition switch 260 is configured so that the information can be recognized by, for example, a barcode reader.
In this embodiment, the attachment type recognition switch 260 reads three limit switches, that is, three bits of information. However, the present invention is not limited to this, and the number of bits is increased in order to recognize more types. May be.
In addition to information expressed in binary, information expressed in decimal or hexadecimal can be selected as appropriate.

  Next, FIG. 11 is a flowchart showing an example of a process when the electromagnetic valve 400 is tested.

  First, the attachment 300 corresponding to the type A valve of the electromagnetic valve 400 is attached to the mounting bases 200a and 200b by the procedure described above. Next, as shown in FIG. 11, two type A valves of the electromagnetic valve 400 are attached in the procedure as described above (step S1). Next, article data for two electromagnetic valves 400 is input (step S2). For example, the serial number of the solenoid valve 400 is input. This input is performed by the operator using a keyboard, but may be automated by attaching a bar code, an IC tag, or the like to the electromagnetic valve 400. Thereafter, since two units, the mounting base 200a and the mounting base 200b, are provided, two processes are performed in parallel.

  In the mounting base 200a and the mounting base 200b, the leveling operation of the electromagnetic valve 400 is performed individually (steps S3a and S3b). Next, the leakage test of the electromagnetic valve 400 is individually performed on the mounting base 200a and the mounting base 200b (steps S4a and S4b). Furthermore, the operating pressure test of the solenoid valve 400 is individually performed on the mounting base 200a and the mounting base 200b (steps S5a and S5b). Furthermore, the capacity test of the solenoid valve 400 is individually performed on the mounting base 200a and the mounting base 200b (steps S6a and S6b). Then, the entire leakage test (steps S7a and S7b) of the electromagnetic valve 400 is individually performed on the mounting base 200a and the mounting base 200b.

  Thereafter, the test result of the electromagnetic valve 400 is confirmed (step S8). Then, it is determined whether or not a retest of the solenoid valve 400 is necessary (step S9). If it is determined that retesting is necessary, the processing from step S2 to step S8 is repeated. On the other hand, when it is determined that the retest is not necessary, it is determined whether or not to change the type of the solenoid valve 400 (step S10).

  If it is determined not to change the type, the processing from step S1 to step S9 is repeated. In this case, the electromagnetic valve 400 is replaced by the procedure as described above. On the other hand, when it is determined that the type is to be changed, the attachment 300 is replaced by the procedure described above.

  In the above-described embodiment, it is not necessary to perform electrical connection and fluid connection separately when exchanging the electromagnetic valve 400, so that work time can be reduced.

(Other examples)
Hereinafter, another example of the pair of holding members 320 in the above embodiment will be described. FIG. 12 is a schematic perspective view showing another example of the pair of holding members 320.

  As shown in FIG. 12, the attachment 300 includes a pair of holding members 320 c instead of the pair of holding members 320.

  As shown in FIG. 12, the pair of holding members 320 c includes an elastic plate 321, a roller 322, a fixed plate 323, and a shaft 325. The elastic plate 321 is made of a plate material having bending elasticity.

  The fixing plate 323 is fixed to the attachment 300, and the elastic plate 321 is fixed to the fixing plate 323 with a bolt BT. The front end of the elastic plate 321 is formed in a substantially U shape, and a shaft 325 is formed across the both ends of the U shape. The shaft 325 is provided with a roller 322.

  In this case, the load of the electromagnetic valve 400 is absorbed by the elastic plate 321 of the pair of holding members 320c. The elastic plate 321 is provided so as to be able to absorb the load of the electromagnetic valve 400 by a few vibrations. Further, since the solenoid valve 400 is supported by the rollers 322 of the pair of holding members 320c, the solenoid valve 400 can be easily moved, and the solenoid valve 400a is pressed and attached to the attachment 300.

  As described above, in the attachment 300 of the electromagnetic valve testing machine 100 according to the present invention, it is possible to reduce labor for making an electrical connection when the electromagnetic valve 400 is replaced. That is, the positions of the electrical connection terminals 410 of the plurality of types of solenoid valves 400 are different for each type. An attachment 300 is provided for each species. Further, for example, in the case where a large number of the same type of solenoid valves 400 are continuously tested, it is necessary to make electrical connection with the solenoid valve testing machine 100 every time one solenoid valve 400 is tested. Since the electrical connection terminals 370 that are electrically connected to the electrical connection terminals 371, 372, and 373 are provided, the electrical connection with the electrical connection terminal 410 can be performed simply by attaching the electromagnetic valve 400 to the attachment 300. There is no need to make a secure connection.

  In addition, in the attachment 300 of the electromagnetic valve testing machine 100, labor for performing fluid connection when replacing the electromagnetic valve 400 can be reduced. That is, the positions of the fluid inlets of the plurality of types of solenoid valves 400 are different for each type. An attachment 300 is provided for each species. Further, for example, in the case where a large number of the same type of solenoid valves 400 are continuously tested, it is necessary to make fluid connection with the solenoid valve testing machine 100 every time one solenoid valve 400 is tested. Are provided with solenoid valve air port connection portions 381, 382, and 383 that are electrically connected to the air port connection portions 351, 352, and 353, so that the air port connection portions 421, 422, and 423 are simply attached to the attachment 300. And a fluid connection can be made, eliminating the need for a separate fluid connection.

  Also, the attachment 300 is provided with attachment type information sections 360 and 360a indicating the type of the electromagnetic valve 400, and the attachment type recognition switch 260 is provided on the mounting bases 200a and 200b of the tester main body 101 of the electromagnetic valve testing machine 100. Therefore, the type of the electromagnetic valve 400 to be tested can be automatically determined by attaching the attachment 300 to the mounting bases 200a and 200b. Therefore, the operator who performs the test does not need to input the type of the electromagnetic valve 400 to the testing machine main body 101 again, the work can be simplified, and work mistakes can be eliminated.

Furthermore, since the attachment bases 200a and 200b are provided with attachment chucking mechanisms 230a and 230b that hold the attachment 300 in close contact with each other, the attachment 300 can be easily replaced, and the attachment chucking mechanisms 230a and 230b can be easily touched. Can be easily installed.
Also, the attachment chucking mechanisms 230a and 230b can press the attachment 300 in the direction of the mounting bases 200a and 200b from the opposite direction of the mounting bases 200a and 200b by the air clamp mechanism. As a result, the attachment 300 can be firmly attached to the mounting bases 200a and 200b.

  Furthermore, since the connection ports of the air port connection portions 251, 252, and 253 are provided in the direction pressed by the air clamp mechanism, the weight of the attachment 300 and the pressure by the air clamp mechanism can be applied to the connection port, Fluid leakage can be prevented.

Further, the electromagnetic valve 400 can be easily held by the pair of holding rods 320a, 320b, and 320c of the attachment 300, and the operator does not need to position the electromagnetic valve 400. Further, the electromagnetic valve collision prevention mechanisms 385a and 385b include cylindrical members 386a and 386b, link mechanisms 387a and 387b, and springs 388a and 388b, so that collision between the port surface of the electromagnetic valve 400 and the port surface of the attachment 300 is prevented. can do. As a result, the operator can prevent the electromagnetic valve 400 and the attachment attachment 300 from being lost when the electromagnetic valve 400 is attached.
Further, a predetermined gap between the port surface of the electromagnetic valve 400 and the port surface of the attachment 300 is gradually reduced by the electromagnetic valve chucking mechanisms 390a and 390b, and the port surface of the electromagnetic valve 400 and the port surface of the attachment 300 are moved to each other. It can be kept in close contact. As a result, the operator can place the electromagnetic valve 400 on the pair of holding rods 320a, 320b, and 320c of the attachment 300 and perform the test of the electromagnetic valve 400 with a single touch. The work burden can be reduced.

  In the electromagnetic valve chucking mechanisms 390a and 390b, cylinder mechanisms 391a and 391b are provided on one end side of the pressing rod members 393a and 393b, and shafts 392a and 392b are provided on the pressing rod members 393a and 393b. As a result, the other end side of the pressing rod members 393a and 393b can press the electromagnetic valve 400 by the lever principle, and the electromagnetic valve 400 can be closely fixed to the attachment 300, so that the operator holds the pair of electromagnetic valves 400. The electromagnetic valve 400 is automatically and closely fixed to the attachment 300 by the action of the electromagnetic valve chucking mechanisms 390a and 390b only by being placed on the rods 320a, 320b and 320c.

  Furthermore, since the electrical connection terminal 370 is provided on the other end side of the pressing rod members 393a and 393b, the solenoid valve 400 can be touched in one touch even with respect to the solenoid valve 400 having electrodes in the direction opposite to the port surface of the solenoid valve 400. The test can be performed with

  In the embodiment of the present invention, the electromagnetic valve 400 corresponds to an electromagnetic valve, the attachment 300 corresponds to an attachment for an electromagnetic valve testing machine, the mounting bases 200a and 200b correspond to a common base, and the testing machine main body 101 The electrical connection terminals 371, 372, and 373 correspond to the first electrical connection portion, the electrical connection terminal 370 corresponds to the second electrical connection portion, and the solenoid valve tester 100 is electromagnetic. It corresponds to a valve testing machine, the attachment type information section 360 corresponds to identification information, the attachment type recognition switch 260 corresponds to a reading means, the attachment chucking mechanisms 230a and 230b correspond to fixing devices, and the attachment chucking lever 231a. , 231b and cylinders 232a, 232b correspond to pressing mechanisms, and air port connection portions 251, 2 2,253 corresponds to the first fluid connection portion and the connection port, the pair of holding rods 320a, 320b, 320c corresponds to the holding portion, and the electromagnetic valve collision prevention mechanisms 385a, 385b and the cylindrical members 386a, 386b are positioned. The springs 388a and 388b correspond to the urging means, the electromagnetic valve chucking mechanisms 390a and 390b correspond to the pressing mechanism, the cylinder mechanisms 391a and 391b correspond to the cylinder device, the pressing rod members 393a, 393b corresponds to a rod member, and the air port connection portions 351, 352, and 353 correspond to a second fluid connection portion.

  A preferred embodiment of the present invention is as described above, but the present invention is not limited thereto. It will be understood that various other embodiments may be made without departing from the spirit and scope of the invention. Furthermore, in this embodiment, although the effect | action and effect by the structure of this invention are described, these effect | actions and effects are examples and do not limit this invention.

The schematic diagram which shows an example of the electromagnetic valve testing machine which concerns on embodiment of this invention Schematic perspective view showing the structure of the attachment Schematic perspective view for explaining the connection state of the mounting base and the attachment Schematic process drawing explaining an example of a process in which an attachment is attached to the mounting base shown in FIGS. 2 and 3 Schematic process drawing explaining an example process in which a solenoid valve is attached to the attachment attached to the mount shown in FIGS. 2 and 3 Schematic process drawing explaining an example process in which a solenoid valve is attached to the attachment attached to the mount shown in FIGS. 2 and 3 Schematic process drawing explaining an example process in which a solenoid valve is attached to the attachment attached to the mount shown in FIGS. 2 and 3 Schematic cross-sectional view for explaining connection of solenoid valve, attachment and mounting base Schematic cross-sectional view for explaining connection of solenoid valve, attachment and mounting base The schematic diagram for demonstrating the kind of attachment 300 provided whenever the kind of solenoid valve differs Flow chart showing an example of a process for conducting a test of a solenoid valve It is a typical perspective view which shows the other example of a pair of holding member.

Explanation of symbols

DESCRIPTION OF SYMBOLS 100 Solenoid valve test machine 101 Test machine main body 200a, 200b Mounting base 230a, 230b Attachment chucking mechanism 241, 242, 243 Electrical connection terminal 251, 252, 253 Air port connection 260 Attachment type recognition switch 300, 300a Attachment 320a, 320b , 320c A pair of holding rods 351, 352, 353 Air port connection part 360 Attachment type information part 371, 372, 373 Electric connection terminal 385a, 385b Electromagnetic valve collision prevention mechanism 386a, 386b Cylindrical member 387a, 387b Link mechanism 388a, 388b Spring 390a, 390b Electromagnetic valve chucking mechanism 391a, 391b Cylinder mechanism 393a, 393b Press rod member 400 Electromagnetic valve

Claims (8)

A mounting attachment for a solenoid valve testing machine that is mounted on a common base of the testing machine body and tests a plurality of types of solenoid valves,
A holding portion that is disposed below the electromagnetic valve mounting position of the mounting attachment and slidably holds the electromagnetic valve;
A positioning portion that forms a predetermined gap between the port surface of the solenoid valve and the attachment attachment port surface, and that can be advanced and retracted in the attachment direction for attaching the solenoid valve to the attachment attachment port surface;
An attachment for a solenoid valve testing machine, comprising: a pressing mechanism portion that presses the solenoid valve held by the holding portion on the side of the attachment attachment port surface.   2. The attachment for a solenoid valve testing machine according to claim 1, further comprising an urging means for urging the positioning portion in a direction away from the attachment attachment port surface. The pressing mechanism has a bar member and a cylinder device,
The cylinder device is provided on one end side of the rod member, a rotating end is provided on the rod member, the other end side of the rod member presses the electromagnetic valve according to the principle of the lever, and the electromagnetic valve is attached to the attachment attachment. The attachment for a solenoid valve testing machine according to claim 1 or 2, wherein the attachment is fixed tightly. The mounting attachment is
A first electrical connection portion to which an electrical signal from the tester main body is input, a portion to which the electrical signal input from the first electrical connection portion is output, and the plurality of types of electromagnetic valves are attached. The mounting attachment of the electromagnetic valve testing machine according to any one of claims 1 to 3, further comprising a second electrical connection portion that is exposed and provided. The mounting attachment is
The attachment for a solenoid valve testing machine according to claim 4, wherein the second electrical connection portion is provided on the other end side of the bar member. The mounting attachment is
A first fluid connection portion that takes in fluid from the tester main body, and a second fluid connection that communicates with the first fluid connection portion and is exposed at a portion to which the plurality of types of solenoid valves are attached. The attachment for a solenoid valve testing machine according to any one of claims 1 to 5, wherein a mounting portion is provided. The mounting attachment is
The attachment attachment of the electromagnetic valve testing machine according to claim 6, wherein the second fluid connection portion is provided along a direction pressed by the pressing mechanism of the attachment attachment port surface. An electromagnetic valve testing machine comprising the attachment for the electromagnetic valve testing machine according to any one of claims 1 to 7.