JP4566173B2 - Control valve testing equipment - Google Patents

Description

  The present invention relates to a test device for a control valve of an automatic transmission.

As a device for testing a single valve body of a control valve of an automatic transmission, a technique described in Patent Document 1 is disclosed. In this test apparatus, an attachment station, a flushing station, a test station, and a removal station are arranged in a closed circuit on the same plane, and the stations are connected by a conveyor. Here, the valve body is arranged so that the manifold mounting surface is parallel to the horizontal plane, and each station is moved in this horizontally placed state. That is, the flushing and testing of the valve body is performed in the horizontal position. As represented by this apparatus, conventionally, in a control valve test apparatus for an automatic transmission, flushing and testing are performed while the valve body is in a horizontal position. This is because most of the horizontal installation types have the control valve mounted sideways on the lower side in the vertical direction of the automatic transmission (so that the manifold mounting surface faces vertically upward).
JP 07-294383 A

  However, for design reasons, the control valve is installed vertically on the control valve (with the manifold mounting surface, which is the mounting surface for the automatic transmission main body, parallel to the vertical direction). There is also. When the test apparatus for the horizontal installation type is used to test such a vertical installation type control valve, the test is performed in a horizontal installation state different from the actual on-vehicle state (vertical installation). For this reason, there was a problem that appropriate and accurate test results could not be obtained due to the following factors. First, since the oil flow and the valve movement differ between the vertical installation and the horizontal installation, characteristics such as hydraulic pressure that are the same as those in the vehicle-mounted state cannot be obtained. For example, the weight of oil affects the oil pressure and flow rate. Second, if it is placed horizontally in the test apparatus, the contaminants in the hydraulic circuit are not sufficiently removed, and the test results are easily affected by these contaminants. Specifically, in the horizontally placed state, the hydraulic circuit of the control valve opens vertically upward, so that burrs and chips generated during processing stay on the horizontal oil surface.

  Here, in order to test the vertical type control valve in the same state as the vehicle-mounted state, the test is performed by simply changing the arrangement of the control valve in the horizontal type test device, for example, the device of Patent Document 1, to the vertical type. It is also possible. However, the vertical position control valve has a higher center of gravity than the horizontal position, and the above apparatus is configured to support the control valve only by the pins 21 and 22 protruding from vertically below. If the position is changed, the support of the control valve becomes very unstable and cannot be reliably held. Therefore, there is a problem that the control valve may not be able to perform an accurate test because it tilts during the test, or the control valve may fall or be damaged when moving between stations. .

  The present invention has been made paying attention to the above-described problems, and an object of the present invention is to provide a test apparatus that can reliably and appropriately test a vertical control valve.

In order to achieve the above object, a control valve test apparatus according to the present invention tests a transport pallet holding a control valve, a first station for cleaning the control valve, and characteristics of the control valve that has been cleaned. In a control valve testing apparatus having a second station and a conveyor for transporting the transport pallet to the first station and the second station, the mounting surface of the control valve is perpendicular to the transport pallet. A holding portion for holding the control valve is provided so as to be parallel , the transport pallet has a base plate installed on the conveyor, and the holding portion is erected in a direction perpendicular to the base plate. A vertical plate and a projecting pin projecting in a direction perpendicular to the vertical plate; Was to have a stopper mechanism for restricting the movement of said control valve in a direction away from said vertical plate.

  Therefore, in the control valve test apparatus of the present invention, it is possible to perform a test while holding the vertically installed control valve in the same vertically installed state as the in-vehicle state, so that an appropriate test result can be obtained. .

  Hereinafter, the best mode for realizing the present invention will be described based on examples.

[Overall configuration of test equipment]
In the following, for the sake of explanation, an xyz orthogonal coordinate system is provided in each drawing, the direction of the manifold unit 23 with respect to the clamp unit 24 is the x-axis positive direction, the vertical upper direction is the y-axis positive direction, and the carry-in direction with respect to the conveyor unloading direction. Is defined as the z-axis positive direction. 1 and 2 are general views of the control valve automatic test apparatus 1 according to the first embodiment. FIG. 1 is a plan view, and FIG. 2 is a front view seen from the z-axis positive direction side of FIG. Hereinafter, the valve body under test of the control valve is referred to as work VB.

  As shown in FIG. 1, the apparatus 1 includes a warming / flushing station (hereinafter simply referred to as a warming station) 2 for warming and washing the control valve, a test station 3 for testing the hydraulic characteristics of the control valve, a conveyor 4, and the like. It has a work base (conveying pallet) 5 for holding the work VB. Both stations 2 and 3 are arranged adjacent to each other in the bed 1a. The conveyor 4 penetrates the inside and outside of the bed 1a, and connects both stations 2 and 3 within the bed 1a. The work base 5 is installed on the conveyor 4.

  The control valve according to the first embodiment is a vertical type that is attached to the automatic transmission so that the manifold attachment surface is perpendicular to the horizontal plane. The apparatus 1 holds the work VB on the work base 5 in a vertically placed state, automatically carries it into the bed 1a, and warms up the work VB at the stations 2 and 3 in the bed 1a. Automatically start and run flushing and testing. Thereafter, the work base 5 is carried out of the bed 1a.

(Work base)
As shown in FIG. 1, the work base 5 includes a base plate 50 installed on the conveyor 4 and a holding portion 51 that positions and supports the work VB. At the four sides of the base plate 50, a conveyance stopper 50a for installing the work base 5 on the conveyor 4 is provided. The base plate 50 is provided with a locating hole 50b for positioning the work base 5 to both stations 2 and 3.

  3 to 5 show the work base 5 in a state where the work VB is installed. The work VB is indicated by a two-dot chain line. 3 is a diagram viewed from the x-axis negative direction side, FIG. 4 is a diagram viewed from the z-axis positive direction side, and FIG. 5 is a diagram viewed from the z-axis negative direction side. The holding part 51 of the work base 5 includes a vertical plate 52, a projecting pin 53, and a stopper mechanism 54.

  As shown in FIG. 3, the vertical plate 52 is substantially rectangular and is erected in the vertical direction with respect to the base plate 50. Two projecting pins 53 are provided, one at each end of one of the two diagonal lines of the vertical plate 52. That is, one protruding pin 53a is on the y-axis negative direction side and the z-axis negative direction side of the vertical plate 52, and the other protruding pin 53b is on the y-axis positive direction side and the z-axis positive direction side of the vertical plate 52. Is provided.

  As shown in the partial cross-sectional view of FIG. 5, the protruding pin 53 a is fixedly installed in a state of protruding in the vertical direction with respect to the vertical plate 52. Specifically, projecting pin holes 53e are formed in the x-axis direction by two cylindrical members 53c and 53d fitted to the vertical plate 52 so as to sandwich the vertical plate 52 from both side surfaces thereof. The protruding pin 53a is installed through the protruding pin hole 53e, and the tip 53f of the protruding pin 53a protrudes toward the x-axis positive direction side of the vertical plate 52. The same applies to the protruding pins 53b, and the tips of the two protruding pins 53a and 53b both protrude toward the positive side of the vertical plate 52 in the x-axis direction.

  As shown in FIG. 3, the vertical plate 52 has a plurality of clamp pin passage holes 52a. Clamp pins 24a and 34a of clamp units 24 and 34 described later of the stations 2 and 3 pass through the clamp pin passage holes 52a.

  Further, a reinforcing material 55 is formed on the surface of the vertical plate 52 on the negative side in the x-axis direction in a direction perpendicular to both the base plate 50 and the vertical plate 52, thereby increasing the strength of the vertical plate 52.

  As shown in FIG. 4, a stopper mechanism 54 that restricts the movement of the workpiece VB in the direction away from the vertical plate 52 is provided on the positive side of the vertical plate 52 in the z-axis direction. The stopper mechanism 54 includes a lever 540, a stopper hinge 541, a coil spring 542, and the like. An L-shaped stopper hinge 541 is fastened to the z-axis positive direction end of the surface 52b of the vertical plate 52 on the x-axis positive direction side. A lever 540 is attached to the hinge 541 extending in the x-axis direction so as to be rotatable in the xy plane. The lever 540 is a rod-like member, and a rotation center O is provided at the center thereof, and the lever 540 is attached to the above portion of the hinge 541 at the rotation center O.

  As shown in FIG. 4, a claw portion 543 that engages with the workpiece VB is formed at the end of the lever 540 in the positive x-axis direction. An engaging groove 544 and a tapered portion 545 are formed on the positive side of the claw portion 543 in the y-axis direction. In a neutral state in which the workpiece VB is not installed on the workpiece base 5, the tapered surface of the tapered portion 545 faces the x-axis positive direction and the y-axis positive direction. The claw portion 543 is provided with a pin 546 that protrudes in the positive z-axis direction.

  A spherical release portion 547 is formed at the x-axis negative direction end of the lever 540. The release portion 547 is located on the x-axis negative direction side with respect to the vertical plate 52.

  A spring retainer 548 is fastened to the edge 52c of the vertical plate 52 on the z-axis positive direction side. On the other hand, a recess 549 is formed in the arm portion on the x-axis negative direction side from the center portion of the lever 540. A coil spring 542 is installed between the vertical plate 52 and the lever 540, and one end of the coil spring 542 is fixed to the spring retainer 548 and the other end is fixed to the recess 549.

(Warming station)
Hereinafter, since the structure of both the stations 2 and 3 is the same, the warm air station 2 will be described. As for the test station 3, only the parts different from the warm air station 2 will be described.

  As shown in FIGS. 1 and 2, the warming station 2 includes a positioning unit 21 for the work base 5, a lifter 22 for reciprocating the work base 5 in the vertical direction by a hydraulic cylinder, and a work VB in close contact with the work VB. A manifold unit 23 that forms an oil passage for flushing, and a clamp unit 24 that presses the workpiece VB by a hydraulic cylinder and presses the manifold mounting surface α (see FIGS. 4 and 5) on the workpiece VB side against the manifold unit 23. ,have. The manifold unit 33 of the test station 3 is in close contact with the work VB to form a hydraulic circuit for testing hydraulic characteristics and the like.

[Operation of test equipment]
In the process before the control valve is incorporated in the automatic transmission AT, the device 1 warms and cleans the control valve (work VB), and then supplies test oil to each port of the control valve (work VB). A functionality test, such as whether or not to generate a predetermined hydraulic pressure at the port, is performed. Hereinafter, the work base 5 simply refers to the work base 5 holding the work VB.

(Warming and cleaning)
In the warm air station 2, first, the work base 5 is positioned in the warm air station 2 by the positioning unit 21. Specifically, the locate pin 21a of the positioning unit 21 and the locate hole 50b of the work base 5 are fitted. Thereafter, the work base 5 is raised by the lifter 22. Second, the work base 5 traverses toward the manifold unit 23. Third, the work base 5 is clamped by the clamp unit 24 and pressed toward the manifold unit 23. More specifically, the clamp pin 24a of the clamp unit 24 passes through the clamp pin passage hole 52a and directly clamps the workpiece VB. As a result, the manifold mounting surface α of the workpiece VB is pressed against the workpiece VB mounting surface 23a of the manifold unit 23, and both surfaces are closely bonded (see FIG. 2). Fourth, start warming and flushing (cleaning). By flowing warm oil from the manifold unit 23 into the hydraulic circuit of the work VB, the work VB is warmed to be in the same temperature condition as when traveling, and impurities in the hydraulic circuit are poured off with oil. Fifth, after the warming and flushing are completed, the steps opposite to the first to third steps (rising, traversing, clamping) are performed, and then the work base 5 is moved to the test station 3.

  As will be described later, the manifold mounting surface α on the workpiece VB side is held parallel to the vertical direction, that is, parallel to the y-axis during the above-described steps. For this reason, burrs and chips generated during the processing of the valve body do not stay on the manifold mounting surface α. Therefore, impurities in the hydraulic circuit can be sufficiently removed, and the test result can be prevented from being affected by these impurities.

(Functionality test)
The same steps as the first to fifth steps are repeated at the test station 3. As a difference from the warm air station 2, oil is transferred to and from the manifold unit 33, and the hydraulic characteristics and the like of the control valve are tested. OK and NG are automatically determined based on the test result. After the test is completed, the work base 5 is unloaded from the test station 3 and the apparatus 1.

  As will be described later, during the above-described process, the work VB is held so that the manifold mounting surface α of the work VB is parallel to the vertical direction, that is, in a vertically placed state. For this reason, the flow of oil and the movement of the valve are the same as in the in-vehicle state (vertical placement), and the same characteristics such as hydraulic pressure as in the in-vehicle state can be obtained, and an appropriate test can be performed.

(Work holding)
During the warming, cleaning, and testing as well as while the work base (conveying pallet) 5 flows on the conveyor 4, the work VB is continuously positioned in the vertical state with respect to the work base 5, and its posture is changed. Is retained.

  4 and 5, the work VB indicated by a two-dot chain line is installed on the work base 5 in a vertically placed state. That is, the manifold mounting surface α is parallel to the y axis and parallel to the vertical direction. The work VB is installed on the x-axis positive direction side with respect to the vertical plate 52. Two engagement holes (not shown) are provided on the surface of the work VB on the negative side of the x-axis in positions corresponding to the two projecting pins 53a and 53b, and projecting from the vertical plate 52. The workpiece VB is held by the workpiece base 5 by fitting the pins 53a and 53b into the engagement holes. That is, these two projecting pins 53a and 53b receive the vertical load of the workpiece VB and position the workpiece VB.

  Here, since the two projecting pins (53a, 53b) are provided, the workpiece VB does not rotate in the yz plane as in the case of one projecting pin, and the workpiece VB is positioned reliably. Can do. Even when there is only one projecting pin, it may be possible to prevent the workpiece VB from rotating in the yz plane by making the sectional shape (in the yz plane) of the projecting pin square or the like. Considering the tolerance between the engagement hole of the work VB and the projecting pin, it is not practical and the work VB cannot be positioned reliably.

    In addition, the inclination (backlash) of the workpiece VB with respect to the vertical plate 52 due to the above-described tolerance is smaller when there are two projecting pins (53a, 53b) than when there is only one projecting pin. The smaller the distance between the installation pins 53a and 53b, the smaller. For example, as the distance between the projecting pins 53a and 53b in the y-axis direction is larger, the inclination of the workpiece VB with respect to the vertical plate 52 due to the above-described tolerance is regulated. For this reason, by providing two projecting pins spaced apart from the base plate 50 in the vertical direction, the workpiece VB is prevented from being inclined (raised) with respect to the vertical plate 52, and the workpiece is reliably Holds VB.

  The holding part 51 has a stopper mechanism 54 that prevents the projecting pins 53a and 53b from coming out of the engagement holes and preventing the workpiece VB from dropping from the holding part 51. That is, a claw portion 543 that engages with the workpiece VB is provided at the positive end in the x-axis direction of the lever 540 attached to the vertical plate 52. The engagement groove 544 of the claw portion 543 engages with the projecting portion β provided on the surface of the workpiece VB on the z-axis positive direction side, so that the movement of the workpiece VB in the x-axis positive direction is restricted. In this way, by restricting the workpiece VB from moving in the direction away from the engagement with the projecting pins 53a and 53b, the workpiece VB is prevented from dropping from the holding portion 51, and is securely attached to the holding portion 51. Work VB can be held. For example, after the test at the test station 3 is completed, the work VB is prevented from dropping from the holding portion 51 even when the work VB is difficult to be separated from the testing machine (work VB mounting surface 33a of the manifold unit 33) by oil or the like. it can.

  The coil spring 542 provided in the stopper mechanism 54 urges the lever 540 in the rotation direction in which the engagement between the workpiece VB and the claw portion 543 is maintained, so that the workpiece VB is unlikely to come off from the claw portion 543. That is, as shown in FIG. 4, when the work VB is installed on the work base 5 and the claw portion 543 is engaged with the work VB, the coil spring 542 biases the lever 540 in the concave 549 in the negative y-axis direction. ing. Therefore, a force acts to rotate the lever 540 counterclockwise when viewed from the z-axis positive direction side, and the claw portion 543 is biased to the y-axis positive direction side. This urging force presses the engagement groove 544 of the claw part 543 against the protruding part β of the work VB, so that the engagement between the work VB and the claw part 543 is maintained.

  On the other hand, when the workpiece VB is installed on the workpiece base 5, the lever 540 rotates by the action of the taper portion 545 provided on the claw portion 543, and the engagement between the workpiece VB and the claw portion 543 can be completed smoothly. . That is, when the workpiece VB is translated in the negative x-axis direction toward the vertical plate 52 while piercing the projecting pins 53a and 53b, the projecting portion β of the work VB comes into contact with the tapered portion 545 of the claw portion 543. Become. Since the lever 540 is rotatably provided, the projecting portion β of the work VB slides against the taper portion 545 of the claw portion 543 and pushes down the claw portion 543 in the negative y-axis direction, compressing the coil spring 542 and lever 540 Rotate clockwise as viewed from the positive z-axis. As a result, the workpiece VB can move in the negative x-axis direction, and the engagement between the workpiece VB and the projecting pins 53a and 53b is completed. Simultaneously with the completion of this engagement, the claw portion 543 of the stopper mechanism 54 and the projecting portion β of the workpiece VB are also engaged by the biasing force of the coil spring 542. As described above, the engagement between the workpiece VB and the claw portion 543 is maintained. As described above, the work VB can be easily attached to the work base 5 against the urging force of the coil spring 542 by the lever 540 swinging by the action of the taper portion 545.

  When removing the workpiece VB from the workpiece base 5, the lever 540 is rotated by the action of the release portion 547 provided on the lever 540, so that the workpiece VB and the stopper mechanism 54 (claw portion 543) are smoothly engaged. Can be released. That is, after unloading the work base 5 from the apparatus 1, as shown in FIG. 6, the release mechanism 6 accommodates the release portion 547 in the recess 6a. The release mechanism 6 is provided so as to be movable in the vertical direction (y-axis direction). When the release mechanism 6 that houses the release portion 547 moves in the y-axis positive direction, the lever 540 rotates in the clockwise direction when viewed from the z-axis positive direction side. Thereby, the engagement between the projecting portion β of the workpiece VB and the engagement groove 544 of the claw portion 543 can be automatically released.

  Here, since the release portion 547 has a spherical shape, the release portion 547 easily enters the recess 6 a of the release mechanism 6. Further, as the release mechanism 6 moves, the release portion 547 comes into sliding contact with the surface of the recess 6a, so that the rotation of the lever 540, that is, the release of the engagement between the workpiece VB and the claw portion 543 is smoothly performed. Therefore, it is easy to automatically remove the workpiece VB from the workpiece base 5.

  The claw portion 543 is provided with a pin 546 that protrudes in the positive z-axis direction. When a person grabs the pin 546 and rotates the lever 540, the workpiece VB is manually moved from the workpiece base 5. It can also be removed.

[Effect of Example 1]
The control valve test apparatus 1 of Example 1 has the following effects.

(1) The apparatus 1 according to the first embodiment includes a work base 5 that holds a work VB, a warming / flushing station 2 that cleans the work VB, a test station 3 that tests characteristics of the cleaned work VB, In a control valve testing apparatus having a conveyor 4 for transporting the workpiece base 5 to the warming / flushing station 2 and the test station 3, the manifold mounting surface α of the workpiece VB is parallel to the vertical direction on the workpiece base 5. Thus, a holding part 51 for holding the workpiece VB is provided.
Therefore, the vertical control valve can be tested in the same vertical position as in the vehicle (the manifold mounting surface, which is the mounting surface of the control valve to the automatic transmission main body, is parallel to the vertical direction). Appropriate test results can be obtained. In addition, since the manifold mounting surface α of the workpiece VB is held in the vertical direction (parallel to the y-axis) during each process, burrs and chips generated during the processing of the valve body stay on the manifold mounting surface α. There is nothing. Therefore, impurities in the hydraulic circuit can be sufficiently removed, and the test result can be prevented from being affected by these impurities. Accordingly, accurate test results can be obtained.

(2) The work base 5 has a base plate 50 installed on the conveyor 4, and the holding unit 51 is provided with a vertical plate 52 erected in a direction perpendicular to the base plate 50 and a vertical plate 52. And projecting pins 53a and 53b projecting in the vertical direction.
That is, the work VB is provided with an engagement hole at a position corresponding to the projecting pins 53a and 53b, and the projecting pins 53a and 53b protruding from the vertical plate 52 are fitted into the engagement holes. The work VB is held on the work base 5. Therefore, the projecting pins 53a and 53b can receive the vertical load of the work VB and can position the work VB.

(3) At least two protruding pins (53a, 53b) are provided so as to be spaced apart from the base plate 50 in the vertical direction.
Therefore, since the workpiece VB does not rotate and move in the yz plane as in the case of one projecting pin, the workpiece VB can be positioned reliably. Further, by providing the two projecting pins so as to be separated from each other in the vertical direction with respect to the base plate 50, it is possible to prevent the workpiece VB from being tilted (raised) with respect to the vertical plate 52. Therefore, the workpiece VB can be reliably held.

(4) The holding part 51 has the stopper mechanism 54 that restricts the movement of the work VB in the direction away from the vertical plate 52.
Therefore, it is possible to prevent the workpiece VB from falling from the holding portion 52 by restricting the workpiece VB from moving in a direction (x-axis positive direction) that is disengaged from the engagement with the projecting pins 53a and 53b. The workpiece VB can be held by the holding portion 52 (projecting pins 53a and 53b).

(5) The stopper mechanism 54 is provided with a claw portion 543 that engages with the workpiece VB at one end on the x-axis positive direction side, and is rotatably attached to the vertical plate 52, the workpiece VB, and the claw portion 543. And a coil spring 542 that urges the lever 540 in the rotational direction that maintains the engagement with the coil spring.
That is, since the coil spring 542 is in a compressed state when the claw portion 543 is engaged with the work VB, the urging force of the coil spring 542 causes the engagement groove 544 of the claw portion 543 to move through the work groove 544 through the rotation of the lever 540. Press against the protruding part β of VB. Therefore, the engagement between the workpiece VB and the claw portion 543 is maintained, and the workpiece VB can be reliably held by the holding portion 51 (projecting pins 53a and 53b).

(6) The claw portion 543 is provided with a tapered portion 545.
Therefore, when the workpiece VB is installed on the workpiece base 5, the lever 540 is rotated by the projecting portion β on the workpiece VB side slidingly contacting the taper portion 545 provided on the claw portion 543, so that the workpiece VB smoothly And the claw portion 543 can be engaged. In this way, the lever 540 swings by the action of the taper portion 545, so that the workpiece VB can be easily attached to the workpiece base 5 against the urging force of the coil spring 542.

(7) A release portion 547 is provided at the other end of the lever 540.
Therefore, when the workpiece VB is removed from the workpiece base 5, the lever 540 is moved by moving the release portion 547 provided at the other end of the lever 540 on the negative x-axis direction vertically upward (in the positive y-axis direction). By rotating, the engagement between the workpiece VB and the stopper mechanism 54 (claw portion 543) can be released. Thus, the lever 540 swings by the action of the release portion 547, so that the workpiece VB can be easily detached from the workpiece base 5 against the urging force of the coil spring 542.

(8) The release portion 547 has a spherical shape, and is provided with the release mechanism 6 that accommodates the release portion 547 and can move in the vertical direction.
That is, since the release portion 547 of the lever 540 has a spherical shape, it easily enters the recess 6a of the release mechanism 6. Further, as the release mechanism 6 moves, the release portion 547 comes into sliding contact with the surface of the recess 6a, so that the rotation of the lever 540, that is, the release of the engagement between the workpiece VB and the claw portion 543 is smoothly performed. Therefore, it is easy to automatically remove the workpiece VB from the workpiece base 5.

[Other embodiments]
The best mode for carrying out the present invention has been described based on the first embodiment. However, the specific configuration of the present invention is not limited to the first embodiment and does not depart from the gist of the present invention. Any change in the design of the range is included in the present invention.

For example, in the first embodiment, two protruding pins (53a, 53b) are provided at diagonal positions of the vertical plate 52, but may be provided at other positions. Three or more may be provided.
In the first embodiment, the coil spring 542 is used as an elastic body that biases the lever 540. However, other types of elastic bodies may be used.

It is a whole top view of an automatic test device of a control valve. It is the whole front view of the automatic test device of a control valve. It is a figure which shows the workpiece | work base of the state which installed the workpiece | work (x-axis negative direction side). It is a figure which shows the workpiece | work base of the state which installed the workpiece | work (z-axis positive direction side). It is a figure which shows the workpiece | work base of the state which installed the workpiece | work (z-axis negative direction side). It is a figure which shows the relationship between the motion of the cancellation | release mechanism which accommodated the cancellation | release part, and the movement of a lever.

Explanation of symbols

1 Control valve automatic test equipment 2 Warm air / flushing station 3 Test station 4 Conveyor 5 Work base (conveying pallet)
6 Release mechanism 21, 31 Positioning unit 22, 32 Lifter 23, 33 Manifold unit 24, 34 Clamp unit 50 Base plate 51 Holding part 52 Vertical plate 53a, 53b Projecting pin 54 Stopper mechanism 540 Lever 542 Coil spring 543 Claw part 544 Engagement Groove 545 Taper part 547 Release part
VB workpiece (control valve for test)
α Manifold mounting surface β Projection

Claims (6)

A transfer pallet holding a control valve;
A first station for cleaning the control valve;
A second station for testing the characteristics of the control valve that has been cleaned;
A conveyor for transporting the transport pallet to the first station and the second station;
In a control valve test apparatus having
A holding portion for holding the control valve is provided on the transport pallet so that the mounting surface of the control valve is parallel to the vertical direction ,
The transport pallet has a base plate installed on the conveyor,
The holding portion includes a vertical plate that is erected in a direction perpendicular to the base plate, a projecting pin that projects in a direction perpendicular to the vertical plate, and the control in a direction away from the vertical plate. And a stopper mechanism for restricting the movement of the valve. 2. The control valve testing apparatus according to claim 1, wherein at least two of the projecting pins are spaced apart from each other in a direction perpendicular to the base plate . 3. The control valve test apparatus according to claim 1 , wherein the stopper mechanism has a claw portion that engages with the control valve at one end, and a lever that is rotatably attached to the vertical plate; An apparatus for testing a control valve , comprising: an elastic body that biases the lever in a rotation direction that maintains the engagement between the control valve and the claw portion . 4. The control valve testing device according to claim 3 , wherein the claw portion is provided with a taper portion . 5. The control valve test apparatus according to claim 3 , wherein a release portion is provided at the other end of the lever . 6. The control valve test apparatus according to claim 5, wherein the release portion is spherical and includes a release mechanism that accommodates the release portion and is movable in a vertical direction. apparatus.

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