JPH0645093B2 - Assembly device for torque converter with oil gear pump - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to a case where an oil gear pump is normally installed in a torque converter before assembly of a torque converter case incorporating a gear of an oil gear pump and a valve body unit is completed. The present invention relates to a device for assembling a torque converter with an oil gear pump capable of inspecting whether or not it is installed.

[Prior art]

When assembling the gear of the oil gear pump into the torque converter case and assembling the valve body unit integrally with this torque converter case, the relative position between the torque converter case and the gear, and the assembling of the torque converter case and the valve body unit If the position is misaligned or dust is present between the pump gear and the casing, the oil gear pump cannot rotate smoothly, so it is necessary to inspect the rotational torque reaction force of the oil gear pump before moving to the next assembly process. There is.

Conventionally, this inspection was performed after the assembly work was completed.

[Problems to be solved]

However, if a defective product is found when the above-described oil pump is inspected after the assembling work, the torque converter that has completed the assembling work is disassembled again, and the defective portion is corrected, and then the torque converter is again installed. Since it is necessary to perform assembly work, the number of work processes increases, productivity decreases, and this inspection work is additionally required.In order to save labor, the inspection equipment is used and the equipment becomes large. Moreover, it takes time to set the inspection device again, which makes it difficult to reduce the cost.

[Means and Actions for Solving Problems]

The present invention relates to an invention of an assembling device for a torque converter with an oil gear pump that overcomes such difficulties, and has a through hole at a position facing the oil gear pump in a torque converter case that rotatably supports the oil gear pump. In the assembly device that assembles the valve body unit,
Rotational drive means for detachably coupling to the oil gear pump via a friction clutch to rotate the oil pump gear, and torque reaction force larger than a predetermined torque from the oil gear pump to the rotation drive means via the friction clutch. And a fastening means for fastening the valve body unit to the torque converter case, which is controlled according to the detection result of the slip detection means. It is what

Since the present invention is configured as described above, when the rotation drive means is operated and the oil gear pump is rotationally driven in a state where the output portion of the friction clutch is coupled to the oil gear pump, the oil gear pump operates normally. , The torque reaction force larger than a predetermined torque does not act on the friction clutch, slip does not occur in the friction clutch, and a slip detection signal is not transmitted by the slip detection means, and the fastening means Is operated, the valve body unit is screwed to the torque converter case.

Further, according to the present invention, the relative position of the gear with respect to the torque converter case, the torque converter case and the valve body unit, when the oil gear pump is rotationally driven by the rotary drive means not only before the screw fastening work but also during the screw fastening work. If the oil gear pump is not assembled normally due to the misalignment of the assembly position or the presence of dust between the gear and the casing, a large torque reaction force will be generated to rotate the oil gear pump. Since the torque reaction force causes slippage in the friction clutch, and the slippage detection means detects this slippage, the engagement means does not operate before the screw fastening operation, and the valve body unit is During the screw fastening work without screw fastening to the torque converter case, Work is stopped.

As described above, in the present invention, when the oil gear pump is not assembled normally, a large torque reaction force for rotating the oil gear pump is detected by the slip detection means, and the valve body unit is screwed to the torque converter case. No work is performed or the screw fastening work is stopped, so there is no need to disassemble the torque converter with the screw fastening completed again like the conventional one, and the re-correction work can be performed easily in a short time. be able to.

Further, according to the present invention, since a separate inspection device for inspecting whether or not the oil gear pump is normally assembled is not required, the facility cost can be reduced and the floor area can be saved, and moreover, it is necessary to set it on the inspection device. It is possible to simplify the working process, save labor, improve productivity, and significantly reduce costs.

〔Example〕

Hereinafter, a description will be given of an illustrated embodiment in which the present invention is applied to an assembling device for assembling a valve body unit 3 to a vehicle torque converter case 1 via a main separate plate 2.

A pump chamber 5 of an oil gear pump 4 is formed in the valve body unit 3, and an oil pump drive gear 6 and an oil pump driven gear 7 are rotatably fitted in the pump chamber 5 in a mutually meshed state. ing.

The drive unit 10 is mounted above a torque converter case 1 for an automobile to be assembled, and is attached to a machine frame (not shown) so as to be able to move up and down. 11 is detachably connected.

Further, a gear train (not shown) is built in the assembly unit substrate 11, the holding plate 12 is installed below the assembly unit substrate 11 in parallel to the assembly unit substrate 11, and each of the valve body units 3 is installed. A plurality of nut holders 13 are attached to the holding plate at the position where the nuts can be tightened according to the model.
A plurality of clubs 14 projecting downward from 12 are provided to pivotally mount a plurality of clubs 14 that lock the valve body unit 3 in a disengageable manner, and a disengagement air cylinder 15 that swings the clubs 14 in an openable and closable manner is provided. There is.

Furthermore, a motor 16 is attached to the drive unit 10 so as to be rotatable about a vertical axis, and this rotary shaft 17 is directly connected to an intermediate shaft 19 pivotally supported by the assembly unit substrate 11 via a connecting shaft 18, and the intermediate Shaft 19 is friction clutch via universal joint 20
The friction clutch 21 has a built-in torque sensor (not shown).
Relative slippage occurs when a large torque reaction force acts on the output part of 21 even for a predetermined torque, and this slippage is detected by the torque sensor.

Moreover, a cylindrical casing 22 is integrally attached to the holding plate 12, the friction clutch 21 is built in the casing 22, and the upper end of the hollow shaft 25 is fitted to the output portion of the friction clutch 21.

Further, a drive shaft 27 is loosely fitted to the hollow shaft 25 from below, and a stopper 30 is screwed to the top end of the drive shaft 27. The stopper shaft 31 and the stopper 30 are loosely fitted in the drive shaft 27. Compression coil spring 32
Is inserted, as shown in FIGS. 4 to 5,
The ring 33 loosely fitted to the outer circumference of the hollow shaft 25 and the notch 26 of the hollow shaft 25 penetrate through the ring 33 toward the center from three directions in the circumferential direction.
A screw 34 is integrally screwed to the shaft of the friction clutch 21, and the rotational torque acting on the hollow shaft 25 from the output portion of the friction clutch 21 is transmitted to the drive shaft 27 and the pressing shaft 31.

Further, as shown in FIG. 6, three engaging claws 35 are equally swingable on the lower end bifurcated portion 28 of the drive shaft 27 in the circumferential direction through pins 36 which are oriented in the circumferential direction. Is pivoted to
The engaging claw 35 can always be closed and contracted inward by the spring force of the coil spring 37 attached to the pin 36.

Furthermore, the abutting piece 38 is loosely fitted to the outer periphery of the lower portion of the casing 22,
An elevating cylinder 39 is interposed between the casing 22 and the drive shaft 27, and the elevating cylinder passes through the guide elongated hole 23 of the casing 22 from the abutting piece 38.
The screw 40 is screwed to the 39, and the upper end flange 41 of the elevating cylinder 39 and the drive shaft
A bearing 42 is provided on the lower surface of the collar portion 29 of the 27, and a bearing 44 is provided on the collar portion 29 and the pressing ring 43, and a compression coil is provided on the inner protrusion 22a of the casing 22 and the pressing ring 43. A spring 45 is interposed, and the spring force of the compression coil spring 45 causes the abutting piece 38 to move downward from the lower step portion of the casing 22 so as to be positioned at substantially the same height as the lower end of the casing 22. ing.

Furthermore, a bracket 46 is integrally attached below the hole 24 provided in the casing 22 adjacent to the screw 34, and the lever 46 is attached.
So that the inner protrusion 48 of 47 can contact the upper surface of the ring 33,
A lever 47 is pivotally attached to the bracket 46 so that the lever 47 can swing left and right.
The spring force of the tension coil spring 51 causes the inner protruding piece 48 to ring.
Pressed against 33.

Moreover, the adjusting screw 49 is screwed onto the upper part of the lever 47, the receiving piece 50 capable of colliding with the adjusting screw 49 is integrally attached to the outer peripheral surface of the casing 22, and the proximity switch 52 is arranged below the adjusting screw 49. There is.

Since the illustrated embodiment is configured as described above, the torque converter case 1 for an automobile is conveyed and fixed immediately below the drive unit 10, and the valve body is mounted on the main separate plate 2 by a conveying means (not shown). In a state where the unit 3 is joined, it is conveyed above the automobile torque converter case 1 and below the drive unit 10, and the drive unit 10 is lowered.

When the abutting piece 38 is not in contact with the upper surface of the valve body unit 3, the three engaging claws 35 cause the pressing shaft 31 to move as shown in FIG. 8 by the spring force of the compression coil spring 45.
When the drive unit 10 descends and the lower end of the drive shaft 27 approaches the upper surface of the valve body unit 3 in the vicinity of the pump chamber 5, the engaging pawl 35 causes the oil pump drive gear 6 to close. It becomes possible to enter the central hole 8 of the.

When the abutment piece 38 abuts the upper surface of the valve body unit 3 near the pump chamber 5 as the drive unit 10 descends, the abutment piece 38 overcomes the spring force of the compression coil spring 32.
38 is pressed upward relative to the casing 22, and the drive shaft 27 also moves upward in conjunction with this, so that the engaging claw 35
The inner end step portion 3a of the is pushed by the presser shaft 31 and is swung outward,
The engaging claw 35 is engaged with the spline groove 9 of the oil pump drive gear 6, and at the same time, the inward protruding piece 48 of the lever 47 is swung outward by the ascending ring 33, and the proximity switch.
51 operates to detect the engagement of the engaging claw 35 with the spline groove 9.

In this state, the operation of the engagement / disengagement air cylinder 15 causes the club 14 to engage with the main separate plate 2 and the valve body unit 3 so that the club 14 can be suspended.
Along with the lowering of 10, the main separate plate 2 approaches the upper surface of the automobile torque converter case 1 and is placed.

As described above, after the valve body unit 3 is placed on the upper surface of the automobile torque converter case 1 via the main separate plate 2 and is ready for assembly, the motor 16 is operated to drive the drive shaft 27 and the engagement. The nut holder 13 is operated while rotating the compound pawl 35 and rotating the oil pump drive gear 6 and the oil pump driven gear 7, and the assembling work of the automobile torque converter case 1 and the valve body unit 3 is performed.

During this assembly work, the torque converter case 1 for automobiles
Of the oil pump drive gear 6 due to relative positional deviation between the valve body unit 3 and the valve body unit 3 and dust present between the side surfaces of the oil pump drive gear 6, the oil pump driven gear 7 and the inner surface of the pump chamber 5. When the reaction force significantly increases, the friction clutch 21 slips, and this slip is detected, and it is found that the oil gear pump 4 is not properly assembled in the valve body unit 3.

As described above, in the illustrated embodiment, it is possible to inspect whether or not the oil gear pump 4 has been properly assembled in the valve body unit 3 during the assembling work, so that a built-in inspection device for the oil gear pump 4 is specially prepared. Not only saves space at the assembly site but also simplifies the equipment and saves man-hours and time for inspection, which can greatly improve productivity and reduce costs. Can be planned.

[Brief description of drawings]

FIG. 1 is a perspective view of an assembly device of a torque converter with an oil gear pump according to the present invention, and FIG. 2 is an exploded perspective view thereof.
FIG. 3 is a side view showing an embodiment of a device for assembling a torque converter with an oil gear pump according to the present invention, FIG. 4 is an enlarged vertical side view of an essential part of the device, and FIG. Fig. 6 is a bottom plan view of Fig. 4, Fig. 7 is a view taken along arrow VII-VII, and Fig. 8 is an enlarged longitudinal side view of an essential part with the claws opened. is there. 1 ... Automotive torque converter case, 2 ... Main separate plate, 3 ... Valve body unit, 4
...... Oil gear pump, 5 ...... Pump chamber, 6 ...... Oil pump drive gear, 7 ...... Oil pump driven gear, 8 ...... Center hole, 9 ...... Spline groove, 10 ...... Drive unit, 11 ...... Assembly unit Substrate, 12 ... Holding plate, 13 ...
… Nut holder, 14 …… Club, 15 …… Disengaging air cylinder, 16 …… Motor, 17 …… Rotating shaft, 18 …… Coupling shaft, 19…
… Intermediate shaft, 20 …… Universal joint, 21 …… Frictional clutch, 22…
… Casing, 23 …… Long guide hole, 24 …… Hole, 25 …… Hollow shaft, 26 …… Notch, 27 …… Drive shaft, 28 …… Two forks, 29
…… Collar part, 30 …… stopper, 31 …… presser shaft, 32 …… compression coil spring, 33 …… ring, 34 …… screw, 35 …… engaging claw, 36 …… pin, 37 …… coil Spring, 38 ... Contact piece, 39 ... Lifting tube, 40 ... Screw, 41 ... Collar part, 42 ... Bearing, 43 ... Holding ring, 44 ... Bearing, 45 ...
… Compression coil spring, 46 …… Bracket, 47 …… Lever, 48 …… Inward projection piece, 49 …… Adjustment screw, 50 …… Receiving piece,
51 …… tension coil spring, 52 …… proximity switch.

Claims (1)

[Claims] 1. An assembly device for assembling a valve body unit having a through hole at a position facing the oil gear pump in a torque converter case that rotatably supports the oil gear pump, wherein the oil gear pump is connected to the oil gear pump via a friction clutch. Rotational drive means that is detachably coupled to rotate the oil pump gear and slippage of the friction clutch when a torque reaction force larger than a predetermined torque acts on the rotational drive means via the friction clutch from the oil gear pump. A set of torque converters with an oil gear pump, comprising: slip detecting means for detecting; and fastening means which is controlled according to the detection result of the slip detecting means and fastens the valve body unit to the torque converter case with a screw. Attached device.