JPH0347795Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention is applicable to, for example, an oil seal that is inserted into a housing provided on a bearing member that supports a rotating shaft to seal the gap between the rotating shaft and the bearing member. The present invention relates to an annular member mounting device that distinguishes front and back sides of an annular member having a cylindrical mounting portion and a radial portion extending from the mounting portion and inserts the annular member into a housing to be mounted.

(Prior art) As illustrated in FIG. 3, a cylindrical mounting portion 2,
An annular member 1 which is an oil seal having a radial portion 3 extending from one end of the mounting portion 2 and a seal portion 4 made of a rubber-like elastic material baked to the inner end of the radial portion 3 is attached to the housing to be mounted. 5, as shown in the same figure, the annular member 1 to be mounted is externally fitted into a mounting jig 10 having a shaft portion 11 and a radial surface 12, while visually checking the front and back sides. , it was installed by pushing it toward the housing 5 manually or using a separate moving means.

In addition to visual confirmation of the front and back sides, a pressurized air jet hole is provided in the conveying device for the annular member to be mounted, and the annular member that blocks the air jet hole is removed by the pressurized air by the radial section 3. In some cases, a sorting means such as this is also installed.

Further, after inserting the needle into the housing 5, the probe attached to the tip is brought into contact with the radial direction portion 3 by an appropriate advance/retreat means, and if the amount of movement is large, the probe is installed in the opposite direction.
A method may be used in which if the movement of the meter is stopped short, it is determined that the meter is attached in the correct direction.

(Problems to be Solved by the Invention) In the annular member mounting means illustrated in FIG. 3, which requires visual confirmation of front and back, there is a risk of erroneously identifying the front and back as the work continues, and the removing means using pressurized air is necessary. Even in the case where a transfer device is provided with a transfer device, there is still a risk that the transfer device will be turned over when transferred from the transfer device to the mounting device.

Furthermore, if reverse mounting is confirmed, a great deal of effort and time is spent in removing the annular member.

It is an object of the present invention to provide a structure of an annular member mounting device that can resolve the problems of the annular member mounting device according to the prior art described above and can reliably discriminate between front and back.

(Means for Solving the Problems) In view of the problems with the annular member mounting device according to the prior art described above, the present invention provides an air flow opening in the radial surface of a mounting jig having a shaft portion and a radial surface. A positive or negative hole is bored through the passageway and the atmosphere opening hole extending from the joint between the shaft and the radial surface to the end surface of the shaft, and is set to operate following external fitting of the annular member to be fitted onto the shaft. The air pressure generating device and the pressure sensor are connected to the air flow path, and a moving means is provided for moving the mounting jig forward and backward toward the housing to be mounted in conjunction with the pressure sensor.

As the positive or negative air pressure generating device connected to the air flow path, an air compression pump or a vacuum pump, or a solenoid valve connected to a compressed air tank or a vacuum tank is used.

(Function) In the annular member mounting device of the present invention having the above-described configuration, when the annular member to be mounted is externally fitted onto the mounting jig, the positive or negative air pressure generator is activated to introduce air pressure into the air flow path. If the radial portion of the annular member to be installed comes into contact with the radial surface of the installation jig and blocks the opening of the air flow path, positive or negative air pressure will reach the pressure sensor and The moving means is actuated by the command to move the mounting jig toward the housing to be mounted, and the annular member to be mounted is externally fitted onto the mounting jig in the opposite direction to form a gap between the radial portion and the radial surface. If the positive air pressure is exhausted from the atmosphere vent, or the atmosphere vent is connected to a negative air pressure generator, the pressure sensor does not issue an activation command to the vehicle and is installed separately. The abnormality is displayed on the displayed display means.

(Embodiment) In the embodiments shown in FIGS. 1 and 2, the shaft portion 11 to which the annular member 1 to be attached is externally fitted and the radial surface 12 corresponding to the radial portion 3 of the annular member 1 to be attached
The mounting jig 10 has an air passage 13 that opens to the radial surface 12, and an air vent hole 14 that extends from the joint between the shaft portion 11 and the radial surface 12 to the end surface of the shaft portion 11.
A positive or negative air pressure generator 15 using an air compression pump or a vacuum pump and a pressure detector 16 are connected to the pipe line connected to the air flow path 13 and the terminal of the branch pipe of the pipe line. .

FIG. 1 shows that an annular member 1 to be mounted is mounted on a mounting jig 1.
In this example, the radial portion 3 contacts the radial surface 12 and blocks the air flow path 13, thereby generating positive or negative air pressure sent from the air pressure generator 15. reaches the pressure sensor 16, and the pressure sensor 16 that senses the air pressure issues a command to a moving means (not shown) to attach the annular member 1 to the housing 5.

FIG. 2 shows an example in which the annular member 1 is externally fitted in the opposite direction to the mounting jig 10, and the air flow path 13 is not blocked and communicates with the atmosphere opening hole 14, so that the air flow path 13 is not blocked and communicates with the atmosphere opening hole 14, and the air flow path 13 is connected to the atmosphere opening hole 14, and the Since the air pressure flows out from the atmosphere opening hole 14 and air is sent from the atmosphere opening hole 14 to the negative air pressure generator, a command from the pressure sensor 16 to the moving means is not issued, and the air pressure generator When a predetermined period of time has passed after the start of 15,
Separately provided display means indicate that the annular member 1 is in the opposite orientation.

(Effects of the invention) As described above, the annular member mounting device of the present invention has a radial surface corresponding to the shaft portion onto which the annular member to be mounted is externally fitted and the radial direction portion of the annular member. an air flow path opening to the radial surface, a mounting jig with an air vent hole extending from the joint between the shaft portion and the radial surface to the end surface of the shaft portion, a positive or negative air pressure generator connected to the air flow path, and a pressure By including a detector and a moving means that moves the mounting jig toward and away from the mounting target housing, the command from the pressure sensor to the moving means can be used to ensure that the annular member is oriented correctly relative to the shaft of the mounting jig. Since it is emitted only when the annular member is fitted into the housing, incorrect mounting of the annular member to the housing is completely prevented, and by providing a means to indicate that the annular member is externally fitted in the opposite direction to the shaft of the mounting jig, emergency measures can be taken. It is possible.

Furthermore, the annular member device line can be completely automated by providing a robot hand for externally fitting the annular member onto the shaft portion of the mounting jig and a front/back sorting means disposed in the annular member conveying device.

In the above-mentioned embodiments, an oil seal having a seal portion is used as the annular member to be mounted, but the oil seal is not limited to this, and may be applied to other annular members having an attachment portion and a radial portion. Needless to say, it can be used for

In addition, in the above-mentioned embodiment, the correct mounting direction is defined as the case where the radial portion of the annular member contacts the radial surface of the mounting jig and blocks the air flow path, but the correct mounting direction is the opposite direction. Even when wearing
It is possible to apply the annular member mounting device of the present invention by simply inputting and replacing pressure detector commands for the moving means and abnormality display means.

[Brief explanation of the drawing]

1 and 2 are cross-sectional views of an embodiment of the present invention, FIG. 1 shows a situation in which the device is installed in the correct direction, and FIG. 2 shows a situation in which the device is installed in the opposite direction; FIG. 3 is a sectional view showing an example of an annular member mounting means according to the prior art. DESCRIPTION OF SYMBOLS 1... Annular member, 2... Mounting part, 3... Radial direction part, 4... Seal part, 5... Housing, 10
... Mounting jig, 11 ... Shaft portion, 12 ... Radial surface, 13 ... Air flow path, 14 ... Atmospheric opening hole, 1
5... Air pressure generator, 16... Pressure detector.

Claims (1)

[Scope of utility model registration request] In an annular member mounting device for inserting an annular member 1 having a cylindrical attachment portion 2 and a radial portion 3 extending from one end of the attachment portion 2 into a housing 5, the annular member 1 is fitted onto a shaft portion 11 and The radial section 3 has a radial surface 12 that comes into contact with the radial section 3, and an air flow path 13 and the shaft section 11 that are open to the radial section 12.
and the radial surface 12 to the shaft portion 11
A mounting jig 10 with an atmosphere opening hole 14 extending to an end face of the housing, a positive or negative air pressure generator 15 and a pressure detector 16 connected to the air flow path 13, and a mounting jig 10 connected to the housing. An annular member mounting device having a moving means for moving forward and backward toward the fifth side.