JPH062959Y2 - Liquid injection jig tool - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention relates to a tool to be attached to a jig of an apparatus for injecting a liquid into a liquid inlet.

(Prior Art) For example, an oil inlet for a power steering oil tank that supplies oil to a power steering mechanism of an automobile has a liquid inlet having substantially the same inner diameter and a different inner surface shape for each vehicle type. When a plurality of types of bodies are transported on the same body transport line, in order to inject the liquid oil into the power steering oil tank, the nozzle of the drip gun, which is an oil injection gun, is conventionally used manually. The oil was injected into the oil tank by inserting it into the oil inlet of the power steering oil tank.

(Problems to be solved by the invention) However, according to the above-mentioned conventional method, skill is required for the work, and when the nozzle of the driv gun is put in and out of the oil inlet, oil leaks out of the oil inlet. There was a problem such as doing. Also, in order to use a jig tool that seals the oil inlet, it is necessary to replace and use a dedicated tool for each inner surface shape of the oil inlet, and it is possible to use multiple types of bodies that have oil inlets with different inner surface shapes. When it is carried on the same body carrying line, it cannot be practically adopted because it has extremely poor workability, and it is also difficult to automate the oil injection work.

Therefore, an object of the present invention is to provide a liquid injection jig tool having a plurality of types of liquid injection ports having substantially the same inner diameter and different inner surface shapes.

(Means for Solving the Problems) In order to achieve the above object, the present invention is a liquid injection jig tool used in a device for injecting a liquid into a mechanism from a substantially cylindrical liquid injection port, In a liquid injection jig tool adapted to be applicable to a type having a convex portion on a part of an inner peripheral wall of a liquid injection port, a flange portion on a proximal end side is connected to the device, and a tubular portion is penetrated. A tubular tool main body having a hole commonly used for the liquid supply passage and the air exhaust passage, and a tubular outer peripheral surface of the tubular tool main body, which is sealed at a position adjacent to the flange portion at a position adjacent to the flange portion, and A liquid injection port insertion member with which the upper end of the injection port abuts when attached to the injection port, and an outer peripheral surface of the tubular portion of the tubular tool body, which is externally attached to a position adjacent to the liquid injection port insertion member, and In the inlet A first seal member having a concave portion for fitting a convex portion of the peripheral wall, and a packing which is externally mounted on the outer periphery of the first seal member and seals between the inner peripheral wall of the inlet when mounted on the inlet. Adjacent to the first seal member, the tubular portion is provided near the distal end of the tubular portion, and is deformed by being pressed by the convex portion of the inner peripheral wall of the injection port during the mounting process to the injection port. The second seal member is provided with a plurality of lip portions that are in close contact with the lower inner peripheral wall, and a packing that is mounted between the plurality of lip portions to regulate the amount of deformation of the lip portions. .

(Operation) The lip portion of the second seal member is deformed while being regulated by the packing when being inserted into the liquid injection port having the convex portion on the inner peripheral wall, and the deformation of the lip portion is restored when mounting and the convex portion is formed. While sticking to the inner peripheral wall of the inlet, the protrusion of the inlet having a protrusion is fitted into the recess of the first seal member,
The first seal member and the second seal member seal the injection port having the convex portion, while the lip portion is in close contact with the inner surface of the injection port below the convex portion during and during mounting on the injection port having no convex portion. The first seal member and the second seal member seal the injection port having no convex portion.

(Examples) Examples will be described below with reference to the accompanying drawings.

1 is an overall front sectional view of the liquid injection jig tool, FIG. 2 is an overall top view thereof, and FIG. 3 is a sectional view taken along the line III-III in FIG.

As shown in the figure, the liquid injection jig tool 1 according to the present invention has a jig 200 for injecting oil into a liquid oil injection hole and a stepped screw hole 2c for a bolt with a hole in a flange portion 2b. Tubular tool body 2 for tightening bolts
An oil injection port insertion member 3 that is a liquid injection port insertion member that is externally contacted with the flange portion 2b of the tubular tool body 2 from the axial direction, and the tubular tool that contacts the oil injection port insertion member 3 First seal member 4 which is externally mounted on the main body 2
And the tubular tool body 2 in contact with the first seal member.
A second seal member 5 and an O-ring 10 for pressing and holding the second seal member 5, the first seal member 4, and the oil injection port insertion member 3 on the flange portion 2b.

The tubular tool body 2 has a cylindrical tubular portion 21 having a through hole 22 for oil insertion in the center, and a flange portion formed at the upper end of the tubular portion 21 and serving as a mounting portion for the oil injection jig body 200. 2b and has a groove 2a for mounting the O-ring 10 in the lower portion of the tubular portion 21.

The tubular portion 2 below the flange portion 2b of the tubular tool body 2
An oil inlet insertion member 3 is externally mounted on the outer periphery of 1. The oil injection port insertion member 3 is hung downward from the outer periphery and has an oil injection port insertion portion 3a into which the oil injection ports 441 and 451 are inserted at the time of oil injection, and a tubular tool main body 2 formed by vertically penetrating the center part. Through-hole 3 for inserting tubular portion 21 of
1 and has a mounting portion 3b for the packing 8 at the lower end of the through hole 31.

The jig portion seal member 4, which is a first seal member made of a resin material, is mounted on the tubular portion 21 below the oil inlet insertion member 3. The jig seal member 4 has a through hole 41 formed at the center thereof in the vertical direction for inserting the tubular portion 21 of the tubular tool main body 2 and an inner peripheral wall of an oil injection port 441 shown in FIG. The jig seal member 4 has a concave portion 4a that forms an escape of the inner surface protruding portion 442 and a packing mounting portion 4b.
Located inside 1,451.

The jig seal member 5, which is a second seal member made of urethane rubber, is installed on the tubular portion 21 of the tubular tool body 2 below the first seal member 4. The jig seal member 5 has a through hole 51 formed vertically through the center thereof for inserting the tubular portion 21 of the tubular tool main body 2 and an oil injection treatment on the outer side surface as shown in FIGS. 6 and 7. When the tool tool 1 is inserted into the oil injection port 451, it has an elastic convex seal portion 5a which is a lip portion for passing through the inner surface projecting portion 442 of the oil injection port 451 and for sealing. At the time of oil injection work, the inner peripheral surfaces of the oil injection ports 441 and 451 are sealed. Packings 6 and 7 are attached to the groove portion 5b between the lip portions of the elastic convex seal portion 5a provided in the jig seal member 5, and these packings 6 and 7 pass through the inner surface protruding portion 442 of the elastic convex seal portion 5a. Prevents breakage and damage of urethane rubber. A packing 8 is attached to the oil inlet insertion member 3, and the packing 8 prevents leakage of liquid oil and air between the tubular tool body 2 and the oil inlet insertion member 3. Further, a packing 9 is attached to the jig seal member 4, and the packing 9 is attached to the oil injection ports 441, 451.
It prevents oil and air from leaking between the inner surface and the jig seal member 4.

On the other hand, the O-ring 10 is attached to the lower portion of the tubular portion 21 of the tubular tool body 2, that is, the groove 2a below the jig sealing member 5, and the O-ring 10 is attached to the tubular portion 2 of the tubular tool body 2.
1 into which the oil injection port insertion member 3 and the jig seal members 4 and 5 are inserted, and the oil injection port insertion member 3 is pressed against the lower surface of the mounting flange portion 2b of the tubular tool body 2 by the elasticity of the jig seal member 5. Hold.

FIG. 8 is an overall front view showing the structure of a power steering mechanism oil injection device equipped with the liquid injection jig tool 1 according to the present invention. As shown in the figure, the power steering mechanism oil injection device 300 is a power steering mechanism. An oil supply mechanism 310 that supplies oil into the oil tanks 440 and 450 through the oil injection jig 200 and a power steering mechanism 420 that is connected to the power steering oil tanks 440 and 450 through a pipe 421 are in a vacuum state. And an air discharging mechanism 320.

The oil supply mechanism 310 includes an oil supply line 313 that connects the liquid injection jig tool 1 and the oil storage 311.
An oil storage portion 311 for storing the power steering oil 312, an oil supply pump 314 for supplying the power steering oil 312 to the liquid injection jig tool 1 from the oil storage portion 311, and a drive source for the pump 314. And a motor 315.

The air discharge mechanism 320 is provided in the middle of the air discharge pipeline 323 connecting the liquid injection jig tool 1 and the negative pressure pump 321, and a negative pressure is applied to the power steering mechanism 420 to evacuate it. Negative pressure tank 324,
A negative pressure pump 321 that applies a negative pressure to the negative pressure tank 324.
And a motor 322 which is a drive source of the pump 321.

The oil supply pipeline 313 of the oil supply mechanism 310 and the air discharge pipeline 323 of the air discharge mechanism 320 are connected to the liquid injection jig tool 1 via the liquid injection jig 200. The liquid injection jig 200 has an electromagnetic valve 201 that opens and closes an oil supply conduit 313 and an electromagnetic valve 202 that opens and closes an air exhaust conduit 323 inside. It is grasped manually during injection.

In order to inject oil into the power steering mechanism 420 by the power steering mechanism oil injecting device 300 having the liquid injecting jig tool 1 configured as described above, first,
The negative pressure pump 32 is always driven by driving the motors 315 and 322.
1 and the oil supply pump 314 are operating, the solenoid valve 2
01 is used to open the oil supply conduit 313 and the electromagnetic valve 202 is closed to the air discharge conduit 323, and manually grips the liquid injection jig 200 of the power steering mechanism oil injection device 300. Oil tank 44 of the power steering mechanism 420 provided in the engine room where the body 410 is opened
The jig seal member 4 and the jig seal member 5 of the liquid injection jig tool 1 are shown in the oil injection ports 441 and 451 of the 0 and 450, respectively, and the upper ends of the oil injection ports 441 and 451 are shown in FIGS. 5 and 7. As described above, the oil injection port insertion member 3 is inserted until it contacts the lower surface.

The oil tank 440 shown in FIG. 4 in which the oil tank is made of a metal material by the above work and the side wall of the oil inlet 441 is grooved for mounting the cap.
The case will be described with reference to FIG. FIG. 9 is an insertion state chart showing a state where the liquid injection jig tool is inserted into the oil injection port of the metallic power steering oil tank shown in FIG. 4, and the jig seal member 5 is the oil injection port. An elastic convex seal portion, which is a seal portion provided on the side surface of the jig seal member 5 made of urethane rubber, when passing through the inner surface protruding portion 442 in the inside of 441 (this state is shown in FIG. 9A). 5a is deformed by the pressing force of the inner surface protruding portion 442 (this state is shown in FIG. 9 (b)) and returns to the normal shape after passing (this state is shown in FIG. 9 (c)). When it is further inserted, the inner surface protruding portion 442 is fitted into the concave portion 4a formed on the side surface of the jig sealing member 4 (this state is shown in FIG. 9D). And oil inlet 441
The inner surface and the liquid injection jig tool 1 are mounted on the jig seal member 4, and the packing 9 having an outer diameter larger than the inner diameter of the oil injection opening 441 and the oil injection opening 44 on the side surface of the jig sealing member 5
1 is sealed by the elastic convex seal portion 5a having an outer diameter slightly larger than the inner diameter of 1.

Further, when the liquid injection jig tool 1 is inserted into the oil injection port, the oil tank is made of a resin material as shown in FIG. 6, and a tolerance is found in the inner diameter of the oil injection port. The case of an oil tank 450 having an oil inlet 451 having substantially the same diameter as the inner diameter of the inlet 441 is first described.
This will be described with reference to FIG. FIG. 10 (a) is a view in which the liquid injection jig tool with the packing removed from the second seal member is attached to the oil injection port of the resin power steering oil tank of FIG. 6, and FIG. 10 (b) shows The figure which attached the liquid injection jig tool which concerns on this invention is shown, The jig seal member 4 and jig seal member 5 which are attached to the tubular tool main body 2 of a liquid injection jig tool are inserted in the oil injection port 451. At that time, the packing 9 attached to the jig seal member 4 and the elastic convex seal portion 5a provided on the side surface of the jig seal 5
Adheres to the inner surface of the oil injection port 451 so that the liquid injection jig tool 1 and the oil injection port 451 are sealed.
In the above case, the elastic convex seal portion 5a of the jig seal member 5 is formed by tightening the groove portion 5b with packings 6 and 7 having a circular cross-section and contacting the packing portions 6 and 7 with the groove portion 5b. As shown in FIG. 10 (a), the first bending (B) in the insertion direction due to the contact with the inner surface of 451
0 as shown in FIG. 0 (b), which prevents air and liquid from leaking. In the above, FIG. 10 (a),
Of course, the present invention can be applied to a metallic oil tank having an inner surface shape similar to that of the oil inlet 451 of the resin power steering oil tank shown in (b).

The outer diameters of the packing 9 and the elastic convex seal portion 5a are long enough to absorb the tolerance of the inner diameter of the oil injection port 451. Further, the outer diameter of the upper portion of the jig seal member 4 is substantially the same as the inner diameter of the oil inlets 441 and 451 and can be fitted into the oil inlets 441 and 451. The jig seal member 4 is made of resin in order to prevent damage to the oil injection port 451. Further, the inner diameter of the oil injection port insertion portion 3a of the oil injection port insertion member 3 is equal to the oil injection port 4
The size is slightly larger than the outer diameters of 41 and 451 and does not interfere with the outer side surfaces of the oil injection ports 441 and 451 when the liquid injection jig tool 1 is inserted into the oil injection ports 441 and 451.

At the time when the work of inserting the liquid injection jig tool 1 into the oil injection ports 441 and 451 described above is completed, the air discharge conduit 32
3, the solenoid valve 202 in the closed state is automatically opened, and the oil tanks 440 and 450 already connected by the suction action of the negative pressure tank 324, which is always under negative pressure by the operation of the negative pressure pump 321. Oil inlet 441,4
Air is exhausted from 51, and power steering mechanism 420
The inside is evacuated. The solenoid valve 202 is automatically closed when the power steering mechanism 420 is in a vacuum state, and at the same time, the solenoid valve 201, which is in the state where the oil supply pipeline 313 is closed, is automatically opened, and the oil supply pump 314 is constantly provided. The power steering oil 312 being fed from the oil storage unit 311 is press-fitted into the power steering mechanism 420 which is already in a vacuum state by the operation of the above, and a designated amount of the power steering oil 312 is stored in the power steering mechanism 420. The solenoid valve 201 is automatically opened at the time of supply.

By the operation of the power steering mechanism oil injection device 300, the automatic oil supply work to the power steering mechanism 420 is completed, and the oil injection jig 200 with the liquid injection jig tool 1 mounted thereon is manually mounted on the body transport line. By moving the body to the next body, the one cycle of the oil injection process to the power steering mechanism 420 is completed.

With the above-mentioned configuration, the power steering oil for the power steering mechanism equipped with the liquid injection jig tool of the present invention can be used for a plurality of types of oil injection ports having different materials and inner surface shapes and substantially the same inner diameter. By press-fitting, the power steering mechanism provided with the oil tank having the metallic oil inlet with the convex portion on the inner peripheral wall on the same body transport line is provided with the convex portion on the body and the inner peripheral wall. Power steering mechanism equipped with an oil tank that does not have a resin-based oil injection port is maintained.Even when a body is mixed and flowing, the power steering mechanism is semi-automatically changed without changing tools. Oil injection work can be performed. Also, by mounting the liquid injection jig tool of the present invention on a multi-axis robot or the like, it is possible to completely automate the oil injection work to the power steering.

(Effects of the Invention) As is apparent from the above description, according to the present invention, it is possible to mount the liquid injection port of different kinds having different materials and inner surface shapes and substantially the same inner diameter without replacement, and to Since the inlet is sealed by the seal member when mounted, it is possible to prevent the liquid from leaking out of the liquid inlet, and therefore, the injection work does not require skill and has extremely high workability. Further, for example, even when a plurality of types of bodies having oil injection ports having different inner surface shapes are mixedly conveyed on the same conveyance line, the oil injection work can be completely automated.

[Brief description of drawings]

FIG. 1 is an overall front cross-sectional view of the liquid injection jig tool, FIG. 2 is an overall top view of the same, FIG. 3 is a cross-sectional view taken along the line III-III of FIG. 1, and FIG. ) IV-IV line sectional view, FIG. 4 (b) is a partial sectional front view of the metal power steering oil tank, and FIG. 5 is a liquid injection jig tool attached to the injection port of the oil tank of FIG. 6A is a plan view of the inlet, FIG. 6B is a partial cross-sectional front view of the resin power steering oil tank, and FIG. 7 is the oil tank of FIG. 8 is a front sectional view showing a state in which a liquid injection jig tool is attached to the injection port of FIG. 8, FIG. 8 is a schematic view showing the structure of the oil injection device of the power steering ring mechanism, and FIG.
FIG. 10 is an insertion state chart showing a state in which a liquid injection jig tool is inserted into the oil injection port of the metal power steering oil tank shown in FIG. 4, and FIG. 10 (a) is a resin power steering shown in FIG. FIG. 10B is a view in which the liquid injection jig tool with the break prevention packing is removed is attached to the oil injection port of the oil tank, and FIG. 10B shows a view in which the liquid injection jig tool is attached to the oil injection port. In the figure, 1 is a liquid injection jig tool, 2 is a tubular tool body, 2a is a groove, 2b is a flange part, 4 is a first seal member, 4a is a recessed part, 5 is a second seal member, and 5a is a lip part ( Elastic convex seal portion), 6, 7 are packings, 21 is a tubular portion, 22 is a through hole, 300 is a device, 313 is an oil supply pipe line, 323 is an air discharge pipe line, 441 is an injection port having a convex portion, Reference numeral 442 denotes a convex portion, and 451 denotes an injection port having no convex portion.

Claims (1)

[Scope of utility model registration request] 1. A liquid injection jig tool used in an apparatus for injecting a liquid into a mechanism from a substantially cylindrical liquid injection port,
A liquid injection jig tool adapted to be applicable to at least a type having a convex portion on a part of an inner peripheral wall of the liquid injection port, wherein a flange portion on a proximal end side is connected to the device, and a tubular portion A tubular tool body in which the through-hole of the tubular tool is shared by the liquid supply passage and the air discharge passage, and the outer peripheral surface of the tubular portion of the tubular tool body is sealed at a position adjacent to the flange portion with a packing interposed therebetween. And a liquid injection port insertion member with which the upper end of the injection port abuts when attached to the injection port, and an outer peripheral surface of the tubular portion of the tubular tool body, which is externally attached to a position adjacent to the liquid injection port insertion member. A first seal member having a concave portion for fitting a convex portion on the inner wall of the injection port, and a seal between the first seal member and the outer peripheral surface of the first seal member, and the inner wall of the injection port when mounted on the injection port. Suppose And a kin, which is adjacent to the first seal member and near the distal end of the tubular portion, and is deformed by being pressed by the convex portion of the inner wall of the injection port during the mounting process to the injection port, and in the mounted state. A second seal member having a plurality of lip portions that come into close contact with the inner peripheral wall below the convex portions of the second seal member, and a packing that is mounted between the plurality of lip portions to restrict the amount of deformation of the lip portions. Injection jig tool.