KR101201912B1 - Pin positioning jig and pin mounting apparatus - Google Patents

Abstract

The pin positioning jig and pin mounting apparatus of the present invention includes a jig main body 100 fitted with a workpiece by receiving the pin in the receiving hole 102 so that the pin is centered with the insertion hole of the workpiece, and the pin has a predetermined angular position around its axis. It is provided on the jig body to give the direction of the furnace includes a regulating mechanism 110 for regulating the rotation of the pin. According to this, the pin positioning jig is fitted to the work in the state where the pin is accommodated in the jig main body and the rotation is restricted by the restricting mechanism when the pin is oriented at a predetermined angular position with respect to the insertion hole of the work. . Therefore, the pin can be centered on the insertion hole of the workpiece, and the pin can be mounted to the insertion hole of the workpiece with high precision, with the pin positioned at a predetermined angle position with respect to the insertion hole of the workpiece. When carrying the accommodated pin positioning jig, positioning of the pin can be prevented by positioning by the restricting mechanism 110.

Description

Pin Positioning Jig and Pin Mounting Device {PIN POSITIONING JIG AND PIN MOUNTING APPARATUS}

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a pin positioning jig and a pin mounting apparatus for use in mounting cylindrical pins as magnetic parts to a work (parent part) such as a mechanical part or an electronic part, and in particular, to be applied to a vehicle automatic wall accelerator or the like. A pin positioning jig and a pin mounting apparatus for positioning a pin at a predetermined angular position around an axis when a planetary gear mechanism presses a pin freely rotatably supporting a planetary gear in a carrier.

The planetary gear mechanism applied to an automatic transmission mounted on a vehicle includes a plurality of planetary gears fitted to a solar gear, an annular gear, a solar gear and an annular gear, a carrier for freely supporting and rotating a planetary gear, and a planetary gear against a carrier. It is provided with the pin etc. which rotation supports freely.

In this planetary gear mechanism, it is known that the planetary gear is formed so as to be freely supported by a pin via a pin bearing and to provide a lubrication passage to the pin to supply lubricant to the bearing area in order to reduce wear and resistance.

By the way, as a conventional pin mounting apparatus for mounting such a pin on a carrier, a cylindrical pin has a direction in its axial direction (i.e., a lubrication channel having a distinction between up and down) is applied. On the premise of this, the work support plate holding the carrier assembled with the planetary gear, the lifting plate freely driven up and down under the work receiving plate, the cylinder driving the lifting plate, and the lifting plate held by the lifting plate Centering guide having a shaft diameter part inserted into the lubrication flow path of the pin directly brought in, while centering the insertion hole of the planetary gear and the insertion hole of the carrier through the carrier, and pressing the carrier held by the carrier plate from above. Pressing pressure from above to press the pin carried in directly above the member and carrier into the insertion hole It is equipped with a sensor which checks the direction of the pin up and down by judging whether the shaft diameter of the centering guide enters the lubrication flow path of the member and the loaded pin by the inclined state of the pin. It is known (for example, refer patent document 1).

On the other hand, in the planetary gear mechanism, the lubricating oil extending in the axial direction with respect to the cylindrical pin in order to smoothly and efficiently supply the lubricating oil to the bearing area of the planetary gear by using the centrifugal force and the centrifugal pump action according to the rotation of the carrier. In addition to the passage, a lube oil hole penetrating in the radial direction is provided, and it is proposed to mount the pin so that the lube oil hole is directed to the radially outer side of the carrier.

However, in the conventional pin mounting apparatus, the pins are oriented in the axial direction (the path of the lubrication flow path is different in the upward or downward direction) and the directional pins are positioned at a predetermined angle around the axis (circumferential direction). It is difficult to determine and mount.

In addition, the conventional pin mounting apparatus requires a dedicated mechanism (elevating plate, cylinder, and the like) for vertically moving the centering guide, and cannot be arranged by integrating components, resulting in a complicated structure, a large device, and a high cost. It will result in anger.

Japanese Patent Laid-Open No. 7-314266

This invention is made | formed in view of the said prior art, The objective is the cylindrical pin which has directionality about an axial line (circumferential direction), aiming at the structure simplification, size reduction of a device, low cost, etc. The present invention provides a pin positioning jig and a pin mounting apparatus which can be attached to a work (parent part) with high accuracy by giving a direction at a predetermined angle.

In the pin positioning jig of the present invention for achieving the above object in the pin positioning jig for positioning the pin for mounting the cylindrical pin to the insertion hole of the workpiece, the pin receiving jig to center the pin with the insertion hole of the workpiece And a jig main body fitted to the work, and a restricting mechanism provided on the jig main body so as to orient the pin to a predetermined angular position around its axis.

According to this configuration, when the cylindrical pin is oriented and mounted at a predetermined angular position with respect to the insertion hole of the workpiece, the pin positioning jig is held in the state in which the pin is accommodated in the jig body and the rotation is restricted by the restricting mechanism. Is fitted to.

As a result, the pin can be centered on the insertion hole of the workpiece, and the pin can be mounted to the insertion hole of the workpiece with high precision while the pin is positioned at a predetermined angle position with respect to the insertion hole of the workpiece. In addition, when the pin positioning jig containing the pin is driven, it is possible to prevent the pin from shifting by positioning by the restricting mechanism.

In the pin positioning jig which constitutes the above-described configuration, the restricting mechanism has an engagement position which enters and engages from the radially outer side of the pin with respect to the recess formed at the upper end face of the pin and is separated from the recess. It is possible to adopt a configuration including an engaging member capable of moving between and a biasing member that biases the engaging member toward the engaging position.

According to this configuration, since the engagement mechanism and the biasing member that reciprocate (for example, linearly reciprocate or oscillate reciprocally) for the engaging position and the disengaging position are employed as the regulating mechanism, the structure is simplified and downsized. And the like can be achieved.

In the pin positioning jig which constitutes the above-described configuration, the engaging member is freely swinged, the engaging portion capable of engaging with the concave portion at one end thereof, and the operating portion exerting a force for disengaging the engaging portion from the concave portion at the other end side thereof. The branch can adopt a configuration.

According to this configuration, when the pin is accommodated in the jig body, the pin is moved to a predetermined angular position by pushing down the operation portion of the engaging member so that the engaging portion is separated from the receiving area (for example, the accommodation hole) of the pin. It is possible to apply the retaining portion to the jig main body, and then to detach the operation portion, thereby engaging the engaging portion of the engaging member by entering the recessed portion of the pin by the biasing force of the biasing member. In this way, the pin can be accommodated in the jig body while positioning the pin by a simple operation.

Pin mounting apparatus of the present invention to achieve the above object is a pin mounting device for mounting a cylindrical pin in the insertion hole of the workpiece, the jig main body and the pin is fitted to the workpiece by receiving the pin to center the pin with the insertion hole of the workpiece A pin positioning jig including a regulating mechanism provided on the jig main body to provide a direction to a predetermined angular position around the axis thereof and regulating the rotation of the pin; And a pressing mechanism for pressing the jig body of the pin positioning jig toward the work, and a press-fit mechanism for pressing the pin into the insertion hole of the work while the pressing mechanism is in operation.

According to this structure, the workpiece | work which fitted the pin positioning jig was mounted on the table in the state which pin was positioned by the pin positioning jig, the jig main body is pressed and fixed by a press mechanism, and a pin is workpiece | worked by a press-in mechanism. It can be press-fit into the insertion hole of.

In the pin mounting apparatus constituting the above-described configuration, the restricting mechanism is provided between the engaging position entering and engaging from the radially outer side of the pin and the detaching position deviating from the recess with respect to the recessed flattened from the center at the upper end face of the pin. It is possible to employ a configuration including a movable engaging member and a biasing member biasing the engaging member toward the engaging position.

According to this configuration, since the engaging member and the biasing member are used as the regulating mechanism, the mechanism can be simplified, downsized, and the like.

In the pin mounting apparatus constituting the above configuration, the press-fit mechanism includes a lifting head which is free to lift and lower the table, a lifting drive unit for lifting and lowering the lifting head, and a push-in rod installed in the lifting head to press the pin into the indentation hole. It can be adopted.

According to this configuration, the lifting head, the lifting drive unit, and the pushing rod are adopted as the pushing-in mechanism, so that the pushing-in operation can be performed smoothly while attaining the simplification of the structure, the size of the apparatus, and the like.

In the pin mounting device constituting the above-described configuration, the pressing mechanism may adopt a configuration including a pressing member freely supported by the lifting head in a predetermined range with respect to the lifting head, and a bushing spring biasing the pressing member downward.

According to this structure, since the pressing member supported by the lifting head and the biasing member which presses the pressing member downward are adopted as a pressing mechanism, compared with the case of providing the exclusive member which supports a pressing member, the number of parts is reduced. The structure around the lifting head can be simplified, and the apparatus can be miniaturized.

In the pin mounting apparatus which comprises the said structure, the structure which further includes the detector tool which detects whether a direction is provided to a predetermined angle position can be employ | adopted.

According to this configuration, when the pin is displaced from the predetermined angular position, the detector tool detects it, so that the pressing operation of the pin can be stopped beforehand.

In the pin mounting apparatus constituting the above configuration, the detector sphere is freely supported in the up and down direction with respect to the press-fit rod, and is urged downward to protrude from the bottom surface of the press-fit rod, and the pin is directed to a predetermined angle position. Mover, which can be brought into contact with a recess formed conveniently from the center at the upper end surface of the pin, when the pin is displaced from a predetermined angular position. A configuration including a sensor that emits a detection signal in association with each other can be adopted.

According to this configuration, when the pin is oriented to a predetermined angular position and accommodated in the positioning jig, the lower end of the pusher rod enters the recess of the pin and is pushed upward while the lower end face of the press-fit rod is in contact with the pin. Since it is not supported, the sensor can detect that the pin is oriented to a predetermined angular position, while the lower end of the mover is brought into contact with the When the mover is pushed upward in contact with the sensor, the sensor generates a signal in conjunction with the mover's operation, and it is possible to detect that the pin is shifted from the predetermined angle position. In addition, in order to employ a mover supported by the press-fit rod as a detector tool and a sensor that emits signals in conjunction with the operation of the mover, processing of image information necessary when employing a visual sensor or the like is unnecessary, thereby simplifying the structure. It is possible to achieve a low cost and the like, and also to prevent erroneous detection and the like since it is based on mechanical contact operation.

In the pin mounting device constituting the above configuration, the restricting mechanism moves between the engagement position entering and engaging from the radially outer side of the pin to the recessed portion conveniently formed from the center at the upper end surface of the pin and the disengaging position away from the recessed portion. And a biasing member for biasing the engaging member toward the engaging position, wherein the detector mechanism is urged downward so as to protrude from the bottom surface of the press-fit rod while being freely supported in the vertical direction with respect to the press-fit rod. Movable to enter non-contact into the recess formed conveniently from the center at the top surface of the pin when the pin is in a direction oriented to a predetermined angular position, when the pin is deviated from the predetermined angular position Sensor that emits a detection signal in conjunction with the push-up operation It includes, and engaging member is engaged with the concave recess and the mover can be entered in a non-contact portion that may be employed a configuration, which is formed as a part of a recess in the top surface of the pin.

According to this configuration, since the concave portion engaging with the engaging portion and the concave portion through which the mover can enter non-contact is one concave portion, one concave portion determines the predetermined angular position when assembling the jig main body by giving direction to the pin. It becomes a wooden seal and prevents misassembly.

In the pin mounting apparatus which comprises the said structure, the press-fit rod can employ | adopt the structure by which attachment / detachment is formed freely with respect to a lifting head.

According to this configuration, the press-fit rod can be exchanged in accordance with the type of the pin, so that the pin mounting operation can be performed in correspondence with the type of the pin (model of the planetary gear mechanism).

According to the pin positioning jig and the pin mounting device which constitute the above-mentioned structure, the cylindrical pin which has directivity in the circumference | surroundings (circumferential direction) is aimed at a predetermined angle, achieving the structure simplified, miniaturization of a device, low cost, etc. Can be mounted on the workpiece (parent part) with high accuracy.In particular, when the planetary gear mechanism, which is applied to a vehicle automatic transmission, presses a pin into the carrier to support the planetary gear freely in rotation, a predetermined angle around the axis Can be mounted with high accuracy in the direction of.

1 is a plan view showing a pin positioning jig according to the present invention.
2 is a side view (including a partial cross section) showing a state in which a pin positioning jig according to the present invention is fitted to a work.
It is a perspective view which shows the pin used as the mounting object in this invention.
4 is a side view showing an embodiment of the pin mounting device according to the present invention.
FIG. 5 is an enlarged partial view of a part of the pin mounting device shown in FIG. 4.
FIG. 6 is a side view (including a partial cross section) showing a press-fit rod included in the pin mounting device shown in FIG. 4.
7 is a partial side view (including partial cross section) illustrating the operation of the pin positioning jig and pin mounting device according to the present invention.
8 is a partial side view (including partial cross section) illustrating the operation of the pin positioning jig and pin mounting device according to the present invention.
9 is a partial side view (including partial cross section) illustrating the operation of the pin positioning jig and pin mounting device according to the present invention.
10 is a partial side view (including partial cross section) illustrating the operation of the pin positioning jig and pin mounting device according to the present invention.
11 is a partial side view (including partial cross section) illustrating the operation of the pin positioning jig and pin mounting device according to the present invention.

Best Mode for Carrying Out the Invention An optimal embodiment of the present invention will be described below with reference to the accompanying drawings. In addition, in this embodiment, as shown in FIG. 2, the workpiece | work W is a part of the planetary gear mechanism mounted in the automatic transmission of an automobile etc., The carrier W1, the planetary gear W2, and the needle bearing ( W3) and a guiding pin (process pin) W5 inserted into the insertion hole W4 defined by the carrier W1 and the needle barrel W3 so as to temporarily assemble the planetary gear W2 into the carrier W1. It is. And about the workpiece | work W, the original pin P (actual pin) is attached so that it may be replaced with the Ga pin W5.

The pin P (actual pin) is formed in a cylindrical shape, as shown in FIG. 3, and has a radial direction at a position convenient from the center (axis L) at the upper end surface P1 and the upper end surface P1. D) A lubricant oil hole (P4) and a lubricant oil hole (P5) formed so as to communicate with the groove-shaped concave portion (P2) formed in the elongated direction, the lubricating oil passage (P3) extending in the axial line (L) direction and penetrate radially. Etc. are provided. Here, the recess P2 is formed at the same angular position as the lubricant oil hole P4 around the axis L (circumferential direction). The lubricating oil hole P4 and the lubricating oil hole P5 are formed at positions deviated 180 degrees from each other around the axis L (circumferential direction). In addition, the lubricating oil hole P4 and the lubricating oil hole P5 are formed closer to the upper end surface P1 than the lubricating oil hole P5 in the axial line L direction.

Thus, since one recessed part P2 is provided in the upper end surface P1 at the angular position corresponding to the lubricating oil hole P4, by confirming this recessed part P2. It can be used as a neck when assembling the pin positioning jig M.

As shown in Figs. 1 and 2, the pin positioning jig M is fixed to the upper part of the jig main body 100 and the jig main body 100 formed in the shape of a disk to regulate the rotation of the pin P. A plurality of regulating mechanisms 110 and the like are provided.

As shown in FIGS. 1 and 2, the jig body 100 includes a circular central opening 101, a plurality of cylindrical receiving holes 102 arranged in a circumferential direction around the central opening 101, The fixing recess 103 provided in the outer side of the radial direction with respect to each accommodation hole 102, the fitting part 104 fitted to the carrier W1 of the workpiece | work W, etc. are provided.

The central opening 101 is formed so that the sun gear which engages with the planetary gear W2 of the workpiece | work W can be inserted.

The receiving hole 102 inserts the pin P to regulate the positional shift in the direction perpendicular to the axis L to center the insertion hole W4 of the work W and manually pin P by hand. ) Has an inner diameter that can be easily inserted.

The fixing recess 103 is formed to partially embed the holder 111 of the regulating mechanism 110 and to be fixed by a fastening screw (not shown) or the like.

As shown in Figs. 1, 2, and 7, the restricting mechanism 110 can swing freely with respect to the holder 111 and the holder 111 fixed to the fixing recess 103 of the jig body 100. And a bushing spring 113 as a biasing member that biases the supported engaging member 112 and the engaging member 112 toward the receiving hole 102 side (pin P side).

As shown in FIG. 7, the holder 111 is fitted with the fixing recess 103 of the jig main body 100 and fixed using a fastening screw (not shown) or the like, and swings the engagement member 112. The support shaft 111a which supports this freely, the stopper wall 111b which stops the engagement member 112 at the engagement position which engages the recessed part P2 of the pin P, and the engagement member 112 is recessed part P2. And a stopper wall 111c for stopping at a disengaged position away from the space, a space portion 111d for accommodating the bushing spring 113, and the like.

As shown in FIG. 7, the engaging member 112 is formed in a T shape and freely supported by the support shaft 111a, and engaged with the recess P2 of the pin P at one end thereof. The engaging part 112a which can be performed, and the operation part 112b etc. which exert the force for detaching the engaging part 112a from the recessed part P2 on the other end side are provided.

As shown in FIG. 7, the bushing spring 113 is a coiled compression spring, and is disposed by compressing a predetermined amount into the space 111d of the holder 111 to move the engagement member 112 to the engagement position. That is, the biasing force is exerted so that the engagement portion 112a engages with the recess P2 of the pin P.

Then, the engaging member 112 is in contact with the recess P2 of the pin P in contact with the stopper wall 11b by the biasing force of the bushing spring 113 in a state of not exerting a force on the operation unit 112b. A breakaway position that comes into contact with the stopper wall 111c and breaks away from the recess P2 of the pin P by stopping at the engaging position to be pressed and pressing down the operation portion 112b against the bias force of the bushing spring 113. It is supposed to stop at.

As such, the holder 111 fixed to the jig body 100 as the regulating mechanism 110, the engagement member 112 freely supported by the holder 111, and the bushing spring 113 accommodated in the holder 111 are provided. The regulation mechanism 110 can be modularized by employing the < RTI ID = 0.0 >), and the pin P can be oriented and held at a predetermined angular position about the axis L, while the structure is simplified, downsized, and the like. .

Next, the assembly procedure of the pin P and the assembly procedure of the pin positioning jig M and the workpiece | work W are demonstrated.

First, as shown in FIG. 2, the planetary gear W2 is inserted in the carrier W1, and the workpiece | work W in which the Gaffin W5 was inserted in the insertion hole W4 is prepared, and this workpiece | work W is prepared The jig main body 100 of the pin positioning jig M is fitted so as to fit the carrier W1.

At this time, the jig main body 100 is positioned with respect to the workpiece | work W by drawing the upper end area | region of the gaffin pin W5 into the lower area | region of the accommodation hole 102, as shown in FIG.

Subsequently, by pushing down the operation part 112b, the engagement member 112 is moved to a disengagement position, and in this state, the recessed part P2 is oriented in the radial direction outer side of the jig main body 100, Insert into the receiving hole (102).

Then, when the operation portion 112b is released, the engagement member 112 is moved to the engagement position by the force of the bushing spring 113, and the engagement portion 112a moves to the recess P2 of the pin P. ) And join. As a result, the pin P is oriented and positioned and held at a predetermined angular position around the axis L so that the recess P2, that is, the lubricating oil hole P4, faces radially outward. Centering is performed with the insertion hole W4 of W).

In this manner, the pin P can be accommodated in the jig body 100 by positioning in a simple operation. In addition, even if the pin positioning jig M is transported after the pin P is attached to the pin positioning jig M, the misalignment of the pin P can be prevented.

As shown in Figs. 4 and 5, the pin mounting apparatus is mounted on the base 10 and the base 10 to mount the workpiece W fitted with the pin positioning jig M described above from above. Lifting and driving unit 50 for lifting and lowering the table 20, the vertical frame 30 fixed on the base 10, the lifting head 40 freely lifting and lowering relative to the vertical frame 30, and the lifting head 40. ), A pressing member 60 which is detachably attached to the lifting head 40, a pressing member 70 which is freely supported by the vertical movement with respect to the lifting head 40, and a pressing member 70 which biases the pressing member 70 downward. And a detector mechanism 90 provided in the bushing spring 80, the press-fit rod 60, and the lifting head 40, and a control panel (not shown) in charge of various controls.

Moreover, the workpiece | work W which carried in the workpiece | work W which fitted the pin positioning jig M from the upper part onto the table 20 on the base 10, and the workpiece | work W which carried out the press-fitting process from the table 20 is carried out. A rotary table RT or the like having the holding unit HU is disposed.

As shown in FIG. 4, the table 20 is formed so that the pin positioning jig M and the workpiece W transferred from the rotation table RT are placed and held at a predetermined height position.

The table 20 may be provided with a fixing mechanism for temporarily fixing the held workpiece W, or a driving mechanism for positioning and positioning the held workpiece W by two or three dimensions.

As shown in FIG. 4, the vertical frame 30 is fixed upright to the base 10 so as to extend in the vertical direction Z, and the lifting head 40 freely moves up and down in the vertical direction Z. It has the guide part 31 and hold | maintains the lifting drive unit 50 in the inside or the outer wall part.

As shown in FIGS. 4 and 5, the lifting head 40 includes a guide part 41 which is freely connected to the guide part 31 of the vertical frame 30 and guided in the vertical direction Z, A connecting portion 42 to which the ball nut 53 of the elevating driving unit 50 is connected, a fitting portion 43 for detachably fitting the press-fit rod 60, and a receiving portion accommodating a part of the detector port 90 ( 44, the guide portion 45 for guiding the rod portion 72 of the pressing member 70 freely up and down, the upper end surface 46 for contacting the jaw portion 72b of the rod portion 72, and the bushing spring 80 The lower surface 47 which abuts the upper end of the

As shown in FIG. 4, the elevating drive unit 50 includes a motor 51 fixed to the upright frame 30, a ball screw 52 connected directly to the motor 51 and extending in the vertical direction Z, A ball nut 53, which is screwed into the ball screw 52 and connected to the connecting portion 42 of the lifting head 40, is provided.

Then, when the ball screw 52 rotates in one direction by the start of the motor 51, the lifting unit 50 lowers the lifting head 40 via the ball nut 53, while the ball screw ( When the 52 is rotated in the other direction, the lifting head 40 is lifted via the ball nut 53.

In addition, although the screw transfer mechanism which used the ball screw 52 and the ball nut 53 as a lifting drive unit was illustrated here, it is not limited to this, It is a hydraulic actuator or a pneumatic-type cylindrical actuator, The electromagnetic actuator using a solenoid. Etc. may be employed.

As shown in FIG. 6, the press-fit rod 60 defines the lower end surface 61a which can abut on the upper end surface P1 of the pin P to be press-fitted, and at the time of press-fitting, positioning jig M The fitting portion 62, which is engaged with the circumferential front end portion 61 that can be inserted into the receiving hole 102, the fitting portion 43 of the lifting head 40, and defines the upper surface 62a, (63), guide hole (64) for guiding the mover (91) forming a part of the detector (90) in the vertical direction (Z) freely, the jaw portion (91c) and the bias provided in the middle of the mover (91). A receiving part 65 or the like for accommodating the spring 91d is provided.

The press-fit rod 60 is detachably attached to the fitting part 43 of the lifting head 40. That is, by making the press-fit rod 60 detachable with respect to the lifting head 40, the press-fit rod 60 can be replaced according to the kind of pin P. As shown in FIG.

That is, the pin P is press-fitted into the insertion hole W4 of the workpiece | work W by the lifting head 40, the lifting drive unit 50, the press rod 60, etc. in the state which the press mechanism operated. An indentation mechanism is constructed.

Thus, by adopting the lifting head 40, the lifting driving unit 50, and the pressing rod 60 as the press-fit mechanism, the press-in operation can be performed smoothly while achieving the structure simplification, the size of the apparatus, and the like. Can be.

5 and 8, the pressing member 70 is connected to the disc portion 71 and the disc portion 71 having a contact portion 71a having an outer edge protruding downward, and the elevating head 40. The rod part 72 etc. which the up-and-down movement passed freely are provided in the guide part 45 of this.

As shown in FIG. 5, the disc portion 71 includes a through hole 71b for non-contacting the press-in rod 60. The rod portion 72 has an upper end surface 46 of the elevating head 40. ) 72a is provided.

The bushing spring 80 is a coiled compression spring, as shown in FIG. 5, the lower end of which is in contact with the upper surface of the disc portion 71, and the upper end thereof is the lower end surface 47 of the elevating head 40. In contact with each other, and is compressed around the rod portion 72 in a compressed state at a predetermined compression ratio.

And the press member 70 is urged downward by the bushing spring 80 at the time of non-operation, and the evil part 72a abuts on the upper end surface 46, and is stopped. In this state, when the lifting head 40 descends and the contact portion 71a contacts the jig body 100 (upper surface) of the pin positioning jig M, the pressing member 70 stops without lowering. In addition, only the lifting head 40 lowers, and the bushing spring 80 is compressed by the lower end surface 47 of the lifting head 40. That is, the pressing member 70 uses the force of the compression of the bushing spring 80 to direct the jig body 100 of the pin positioning jig M to the work W (and the table 20). It is to press.

That is, the pressurizing mechanism which presses the jig | tool body 100 of the pin positioning jig M toward the workpiece | work W by the said press member 70, the bushing spring 80, etc. is comprised.

In this way, since the pressing member 70 supported by the lifting head 40 and the bushing spring 80 that bias the pressing member 70 downward are employed as the pressing mechanism, the exclusive support for supporting the pressing member 70 is adopted. Compared with the case where the member is provided, the number of parts can be reduced, the structure around the lifting head 40 can be simplified, and the apparatus can be downsized.

As shown in FIGS. 5 and 6, the detector tool 90 moves up and down by the mover 91 and the mover 91, which are freely supported in the vertical direction Z by the press-fit rod 60. In conjunction with the linkage arm 92 disposed on the receiving portion 44, the linkage arm 92, the bushing spring 93 disposed on the receiving portion 44, the linkage arm 92 to rotate in one direction A sensor 94 or the like fixed to the outer wall of the lifting head 40 to emit a detection signal is provided.

As shown in Fig. 6, the movable element 91 is formed to define the lower end 91a, the upper end 91b, the jaw 91c, the bushing spring 91d, the jaw 91e, and the like, and the press-fit rod ( Inserted into the guide hole 64 of the 60, the movement in the vertical direction (Z) is freely supported, while the jaw portion (91c) and the bushing spring (91d) is accommodated in the accommodating portion (65), the lower end portion (91a) is a press-in rod It is held downward with respect to the lower end surface 61a of 60 so that an indentation may protrude freely, and the upper end 91b and the jaw 91e protrude from the upper end surface 62a of the press-in rod 60, and are hold | maintained. .

When the mover 91 is in a state where the direction of the pin P is given to a predetermined angle position, as shown in FIG. 9, the lower end portion 91a of the movable part P2 is a recess P2 of the pin P. As shown in FIG. When the pin P is in a state where the pin P is shifted from a predetermined angular position, as shown in FIGS. 10 and 11, the lower end portion 91a of the upper surface of the pin P ( The upper end portion 91b is raised upward in contact with P1).

As shown in FIG. 5, the linkage arm 92 is formed in a lever shape freely swinged, rotated in a counterclockwise direction by the bushing spring 93, and the one end 92a is movable by the mover 91. ) And the other end 92b is in contact with the sensor 94.

As shown in FIG. 5, the sensor 94 is fixed to the outer wall of the lifting head 40, and the interlocking arm 92 rotates so that the other end portion 92b moves downward and is separated from the output signal. It is supposed to emit.

That is, according to the detector tool 90, when the pin P is oriented in a predetermined angular position and accommodated in the positioning jig M, the lower end surface 61a of the press-fit rod 60 is the pin P. The lower end portion 91a of the mover 91 enters the recessed portion P2 of the pin P and is not pushed upward in the state in which the pin 91 is in contact with the sensor. It is possible to detect that the direction is given to the position. On the other hand, the lower end portion 91a of the mover 91 is the upper end surface P1 of the pin P while the lower end surface 61a of the press-fit rod 60 is in contact with the upper surface P1 of the pin P. In contact with the movable element 91, the sensor 94 generates an output signal via the linking arm 92 interlocked with the operation of the movable element 91, and the pin P is predetermined. It is to detect the deviation from the angular position.

In this manner, as the detector tool 90, the output signal is interlocked with the movable arm 91 supported by the press-fit rod 60, the interlocking arm 92 interlocking with the operation of the movable element 91, and the interlocking arm 92. By employing a sensor 94 or the like that emits light, processing of image information necessary when employing a visual sensor or the like is unnecessary, so that the structure can be simplified, low cost, etc., and mechanical Since it is based on the contact operation, false detection and the like can be reliably prevented.

As described above, the recess P2 to which the engagement portion 112a of the engagement member 112 engages and the recess P2 to which the lower end portion 91a of the mover 91 can enter non-contact is the pin P. Since the upper surface P1 is formed as one recessed portion, the recessed portion P2 determines the predetermined angular position when the pin P is oriented and assembled to the jig body 100. It is a kin and can prevent misassembly beforehand.

Next, the operation of the pin mounting apparatus will be described with reference to FIGS. 8 to 11.

First, when the pin positioning jig M in which the pin P is set is fitted to the work W and brought into the table 20 by the rotation table RT and the work holding unit HU, the lifting and lowering drive is performed. By the drive of the unit 50, the lifting head 40 is driven down.

As shown in FIG. 8, when the contact portion 71a of the holding member 70 abuts on the outer peripheral region of the upper surface of the jig body 100 and the lifting head 40 further lowers, the bushing spring 80 is further lowered. The pressing member 70 presses the jig main body 100 toward the work W and the table 20 by the subordinate force. Thereby, the jig body 100 and the workpiece | work W are hold | maintained so that a position may not shift | deviate mutually.

When the pin P is oriented at a predetermined angular position and accommodated in the jig body 100, the lower end of the movable member 91 accompanies the lowering of the lifting head 40, that is, the press-fit rod 60. 91a enters into the recessed portion P2 of the pin P in a non-contact manner, and the lower end surface 61a of the press-fit rod 60 (the front end portion 61 of) is connected to the upper surface P1 of the pin P. Receive Further, when the lifting head 40 descends, the tip portion 61 of the press-fit rod 60 enters the receiving hole 102 to push down the pin P. As shown in FIG. 9, the pin P is It is mounted in the insertion hole (W4) of the workpiece (W) while pressing the gabine (W5).

On the other hand, as shown in FIG. 10, when the pin P is accommodated in the jig | tool body 100 in the state shifted from the predetermined angle position, it accompanies the lowering of the lifting head 40, ie, the press-in rod 60, The lower end part 91a of the movable element 91 abuts on the upper end surface P1 of the pin P, and as shown in FIG. 11, the upper end part 91b of the movable element 91 is pushed up, The interlock arm 92 rotates clockwise, and the sensor 94 operates to generate an output signal.

Based on the output signal, a control signal is output by the control panel, and the lifting drive unit 50 generates driving force in the reverse direction to raise the lifting head 40 to stop the press-in operation of the pin P. . As a result, the operator can correct the assembly of the pin P, and then can start the press-fitting operation as described above.

In this way, when the pin P is assembled displaced from the predetermined angular position, the detector tool 90 detects it so that the press-in operation of the pin P is stopped beforehand, so that a pending product is generated, an unnecessary collection operation, or the like. Can be reduced.

In the said embodiment, although having provided the holder 111, the engaging member 112, and the bushing spring 113 as a regulating mechanism which regulates rotation of the pin P, it is not limited to this, The pin P As long as it is possible to restrict the rotation of the circumference and give the direction to a predetermined angle position, other regulation mechanisms can be employed.

In the said embodiment, although having provided the movable element 91, the interlocking arm 92, the bushing spring 93, the sensor 94, etc. as the detector mechanism 90 was illustrated, it is not limited to this, structurally If permitted, the interlocking arm 92 and the bushing spring 93 may be closed, and the sensor 94 may be directly linked to the operation of the mover 91.

Industrial availability

As described above, the pin positioning jig and the pin mounting apparatus of the present invention are directed to a cylindrical pin having a directionality around the axis (circumferential direction) at a predetermined angle, while achieving a simplification of structure, miniaturization of the device, and low cost. Since it can be mounted on a workpiece (parent part) with high precision, it can be applied to the mounting of the pin in the planetary gear mechanism etc. which are applied to the automatic transmission for vehicles, and of course, the directional pin is mounted around the axis line. It is also useful for other mechanical parts or electronic parts that need to be done.

W walk
W1 carrier
W2 planetary gear
W3 Needle Bearing
W4 insertion hole
W5 Gaffin
10 base
20 tables
30 vertical frames
31 Guide
40 lifting head (pressing mechanism)
41 Guide part
42 connections
43 fittings
44 receptacles
45 guide
46 Top Side
47 bottom
50 Lifting Drive Units
51 Motor
52 Ball Screw
53 Ball Nut
60 press-fit rod (press-fit mechanism)
61 tip
61a bottom view
62 fittings
62a top view
63 clubs
64 guide ball
65 receptacles
70 Pressing member (Pressing mechanism)
71 disc
71a abutment
71b through hole
72 Rod
72a vice
80 bushing spring
90 detector port
91 mover
91a bottom
91b top
91c vices
91d bush spring
91e vice
92 Interlocking Arms
93 bush spring
94 sensors
M pin positioning jig
100 Jig Body
101 central opening
102 receiving hole
103 fixed recess
104 fitting
110 regulatory bodies
111 holder
111a axis
111b, 111c stopper wall
111d space part
112 engaging member
112a engagement
112b control panel
113 Bushing Spring
RT turntable
HU Workholding Unit

Claims (11)

In the pin positioning jig for positioning the pin to mount the cylindrical pin in the insertion hole of the workpiece,
A jig body for accommodating the pin so as to center the pin with the insertion hole of the work and fitted to the work, and a regulating mechanism provided on the jig body for directing the pin to a predetermined angular position around its axis to regulate the rotation of the pin. Including;
The regulating mechanism includes: an engagement member capable of moving between an engagement position that enters and engages from a radially outer side of the pin and a disengagement position that departs from the recess with respect to a recess formed conveniently from the center on the upper end surface of the pin; And a biasing member for biasing the member toward the engaging position. delete The method according to claim 1,
The engaging member is freely formed with a swing, and has an engaging portion capable of engaging with the concave portion at one end thereof, and an operating portion exerting a force for disengaging the engaging portion from the concave portion at the other end thereof. Positioning jig. delete delete delete delete delete delete delete delete

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