JP4458806B2 - Parking pole operating force measuring device for parking lock mechanism - Google Patents

Description

  The present invention relates to a parking pole operating force measuring device for a parking lock mechanism that measures a parking pole operating force that is a force for engaging a pawl of a parking pole with a gear groove of a parking gear.

  15 and 16 are explanatory views schematically showing the transmission case 100 of the automatic transmission, FIGS. 17 and 18 are views for explaining the parking lock mechanism 101 attached to the mission case 100, and FIG. FIG. 6 is a diagram illustrating a configuration of a cam 106.

  The transmission case 100 is a transmission case 100 of a so-called vertical type automatic transmission that is arranged so as to extend along the longitudinal direction of the vehicle body of the automobile, and extends in the longitudinal direction on the case upper part 100d side. An input shaft (not shown) that is rotatably supported and a drive shaft that extends in the front-rear direction on the case lower part 100e side and is rotatably supported (only the rotation center axis X of the drive shaft is shown in the drawing). have. As shown in FIG. 18, a parking lock mechanism 101 that suppresses the rotation of the drive shaft by engaging the claw 103a of the parking pole 103 with the gear groove 102a of the parking gear 102 provided integrally with the drive shaft is provided. It has been.

  The parking gear 102 is rotatably provided integrally with the drive shaft at the end of the drive shaft on the case rear portion 100a side. A gear groove 102a having a predetermined depth is formed in the circumferential direction on the outer peripheral surface of the parking gear 102. It is recessed at regular intervals.

  The parking pole 103 extends in the circumferential direction along the outer peripheral surface of the parking gear 102 at a radially outer position of the parking gear 102, and approaches and separates from the parking gear 102 in a direction perpendicular to the drive shaft rotation center axis X. The base end is supported by the mounting surface portion 100f of the case rear portion 100a so as to be able to swing in the direction to be moved, and is biased in the direction away from the parking gear 102 by the return spring 104 shown in FIGS. As shown in FIGS. 16 and 18, a claw 103 a that can be engaged with the gear groove 102 a of the parking gear 102 protrudes from a portion of the parking pole 103 that contacts and separates from the parking gear 102.

  A parking support 105 is provided at a position facing the parking gear 102 with the parking pole 103 interposed therebetween. The parking support 105 is configured to hold the slide cam 106 between the parking pole 103 and swing the parking pole 103 by moving the clamped slide cam 106 with the parking rod 107. It is arranged and fixed so as to extend.

  As shown in FIG. 17, the parking support 105 is inserted into the mounting holes 105A and 105B formed at both ends of the parking support 105 by inserting the fixing bolts 108A and 108B and screwed into the bolt holes of the transmission case 100. It is fixed to the mounting surface portion 100f of the rear portion 100a.

  As shown in FIG. 15, the parking rod 107 is provided so as to extend in the front-rear direction on the case lower part 100e side, and the base end part 107a disposed on the case front part 100b side of the parking rod 107 The front plate 100b is connected to a manual plate 109 supported so as to be swingable in the front-rear direction.

  The manual plate 109 is attached to one end of a shaft 110 that extends left and right on the case front portion 100b side and is rotatably supported. As shown in FIG. 16, a lock arm 111 is attached to the other end of the shaft 110, and the tip of the lock arm 111 is connected to a manual shift lever.

  Then, by selecting the P range from a position other than the P range by operating the manual shift lever, the lock arm 111 is swung, and the parking rod 107 is moved to the case front 100b side by the manual plate 109 that swings in conjunction therewith. The parking rod 107 is moved from the non-parking position to the parking position, and a position other than the P range is selected from the P range to move the parking rod 107 from the case rear 100a side to the front of the case. The parking rod 107 can be moved from the parking position to the non-parking position by moving toward the portion 100b.

  The front end portion 107 b of the parking rod 107 disposed on the case rear portion 100 a side passes between the parking support 105 and the parking pole 103 and is disposed at a position protruding from the parking support 105 and the parking pole 103. A slide cam 106 is provided at a location interposed between the parking support 105 and the parking pole 103.

  As shown in FIG. 19, the slide cam 106 has a cylindrical shape that can be inserted through the tip portion 107b of the parking rod 107, the small-diameter portion 106a is disposed on the case rear portion 100a side, and the taper portion 106b is formed on the front portion of the case. In the state arrange | positioned at the 100b side, it is inserted along the parking rod 107 so that movement is possible.

  The small-diameter portion 106a has a shape that has a constant diameter and extends in the axial direction, and is nipped between the parking support 105 and the parking pole 103, whereby the pawl 103a of the parking pole 103 is moved to the parking gear. The parking pole 103 is sized to be disposed at a non-engagement position located radially outward from the gear groove 102a of 102.

  The tapered portion 106 b has a tapered inclined surface that gradually increases in diameter as it moves away from the small-diameter portion 106 a along the axial direction, and is sandwiched between the parking support 105 and the parking pole 103. In this state, the parking pole 103 is swung away from the parking support 105, and the pawl 103a of the parking pole 103 is engaged with the gear groove 102a of the parking gear 102 at the engaging position. It is formed to be able to. The taper portion 106b includes a first taper portion 106b1 continuously expanding to the small diameter portion 106a and a second taper portion 106b2 continuing to the first taper portion 106b1 and gradually expanding from the first taper portion 106b1. It is configured.

  In FIG. 19, reference numeral 112 denotes a retaining piece for the slide cam 106, and reference numeral 113 denotes a spring that biases the slide cam 106 toward the distal end side of the parking rod 107. The retaining piece 112 has a cylindrical shape having the same outer diameter as the small-diameter portion 106a of the slide cam 106, and is attached to the tip of the parking rod 107 so that its outer peripheral surface is continuous with the small-diameter portion 106a. Yes. The spring 113 is fitted into the parking rod 107 on the case front portion 100b side of the slide cam 106, and one end is supported by a spring receiver 107c formed by caulking on the parking rod 107.

  In the parking lock mechanism 101 having the above configuration, when a position other than the P range is selected by operating the manual shift lever, the parking rod 107 is disposed at the non-parking position, and the parking support 105 and the parking pole 103 are A small-diameter portion 106a of the slide cam 106 is interposed therebetween.

  Accordingly, the parking pawl 103 is swung in a direction away from the parking gear 102 by the urging force of the return spring 104, and sandwiches the small-diameter portion 106a of the slide cam 106 in cooperation with the parking support 105. Placed in. As a result, the pawl 103a is disengaged from the gear groove 102a of the parking gear 102, and the drive shaft is allowed to rotate.

  On the other hand, when the P range is selected from a range other than the P range by operating the manual shift lever, the parking rod 107 is moved from the non-parking position to the parking position, and a tapered portion is provided between the parking support 105 and the parking pole 103. The slide cam 106 is moved in the direction in which 106b is interposed.

  Here, when the position of the gear groove 102 a of the parking gear 102 coincides with the position of the pawl 103 a of the parking pole 103, the slide cam 106 moves as it is and slides between the parking support 105 and the parking pole 103. A taper portion 106b of the cam 106 is interposed. As a result, the parking pole 103 is swung in the direction away from the parking support 105 against the urging force of the return spring 104 and is disposed at the engagement completion position. Therefore, the claw 103a is completely engaged with the gear groove 102a of the parking gear 102, and the rotation of the drive shaft is suppressed.

  Further, when the position of the gear groove 102a of the parking gear 102 does not coincide with the position of the pawl 103a of the parking pole 103, the parking gear 102 is disposed at the engagement standby position where the pawl 103a abuts against the gear top surface 102b of the parking gear 102. It is not possible to form a gap between the support 105 and the parking pole 103 so as to appropriately interpose the tapered portion 106b.

  For this reason, the slide cam 106 moves toward the case front portion 100b of the parking rod 107 while pressing and contracting the spring 113, and urges the parking pole 103 away from the parking support 105 by the urging force of the spring 113. A so-called parking wait state can be established in which the pawl 103a of the pole 103 is pressed against the gear top surface 102b of the parking gear 102.

  Therefore, when the drive shaft rotates slightly and the position of the gear groove 102a of the parking gear 102 matches the position of the pawl 103a of the parking pole 103, the parking pole 103 is separated from the parking support 105 by the slide cam 106. It is swung in the direction and arranged from the engagement standby position to the engagement completion position.

  The parking rod 107 is provided with a slide cam 106 interposed between the parking pole 103 and the parking support 105, and the parking pole 103 is swung by moving the parking rod 107 according to the operation of the manual shift lever. Various parking lock mechanisms 101 that perform parking lock by engaging the pawl 103a of the parking pole 103 with the gear groove 102a of the parking gear 102 have been disclosed (see, for example, Patent Document 1).

JP 2000-104827 A

  The parking lock mechanism having the above configuration, when a rotational force exceeding a preset reference value is input to the drive shaft, releases the engagement and allows the drive shaft to rotate, and rotates less than the reference value. When a force is input to the drive shaft, the parking pawl 103 is pressed with an appropriate pressing force so that the engagement state is maintained and rotation of the drive shaft is suppressed, and the pawl 103a of the parking pawl 103 is moved to the parking gear 102. It is designed to be engaged with the gear groove 102a.

  However, after assembling the parking lock mechanism, there is no measuring device that directly measures the actual pressing force. Conventionally, the dimensions and urging forces of each member designed based on theoretical values have prescribed values. Therefore, it was determined that the pressing force was set to an appropriate value indirectly.

  Therefore, if the actual pressing force is weaker than the appropriate value due to the accumulated error of individual members or the error in the assembly position, a rotational force smaller than the reference value is input to the drive shaft. As a result, the pawl 103a of the parking pole 103 may come out of the gear groove 102a of the parking gear 102, and the engagement may be released. For this reason, it is difficult to restrain the drive shaft and keep its rotation stopped, and there is a concern that the parking lock will be incomplete.

  For the above reason, when the actual pressing force is stronger than an appropriate value, the pawl of the parking pole 103 is inserted into the gear groove 102a of the parking gear 102 that is rotating at a rotational speed equal to or higher than a preset rotational speed. When 103a is engaged, the claw 103a cannot be removed from the gear groove 102a, and the engagement cannot be released.

  The present invention has been made in view of the above problems, and an object thereof is to provide a parking pole pressing force measuring device of a parking lock mechanism that can actually measure the pressing force of the parking pole.

The invention of claim 1 made in view of the above-mentioned problem is that the drive rod is moved to the transmission case by moving a parking rod attached to the transmission case of the automatic transmission and extending along the drive shaft along the axial direction. A sliding cam interposed between a parking pole supported so as to be swingable in a direction orthogonal to the axis and a parking support disposed opposite to the parking pole and fixed to the transmission case, thereby moving the parking pole In a parking pole pressing force measuring device of a parking lock mechanism that swings in a direction approaching a parking gear provided on the drive shaft and engages a pawl of the parking pole with a parking gear of the drive shaft, the drive shaft and the Mi state where the parking gear is not mounted together A transmission case holding means for holding the transmission case, and a parking rod of the transmission case held by the transmission case holding means and moving the parking rod in the axial direction thereof to move the parking pole to the parking gear. A parking pole swinging means that swings in the approaching direction, and a pressed object that is opposed to and pressed against the pawl of the parking pole by swinging of the parking pole by the parking pole swinging means facing the pawl of the parking pole And a pressed portion moving means for moving the pressed portion along the swing direction of the parking pole, and a pressing force measuring means for measuring the pressing force with which the parking pole presses the pressed portion. It is characterized by that.

  According to a second aspect of the present invention, in the parking pole pressing force measuring device for the parking lock mechanism according to the first aspect, the first embodiment has a first moving table that moves in a direction approaching and separating from the transmission case, A slide arm that is supported by the first moving table so as to be reciprocally movable along the swinging direction of the parking pole, the pressed portion is attached to the distal end, and the cam floor is attached to the proximal end; A guide groove in which a cam floor is engaged with a flat plate surface facing the slide arm is continuously recessed in a circumferential shape and rotated to the first moving table around a position shifted from the circumferential center of the guide groove. The eccentric groove plate supported freely and the cam groove is guided by the guide groove by rotating the eccentric groove plate to move the slide arm in the reciprocating direction. And having a Bomota.

  According to a third aspect of the present invention, in the parking pole pressing force measuring device of the parking lock mechanism according to the second aspect, the first moving table is fitted to the parking gear bearing portion of the transmission case by bringing the first moving table closer to the transmission case. It has centering positioning means for performing centering positioning of the pressed portion moving means with respect to the case.

  According to a fourth aspect of the present invention, in the parking pole pressing force measuring device for the parking lock mechanism according to any one of the first to third aspects, the value of the pressing force measured by the pressing force measuring means is within a preset reference range. It is characterized by having a judging means for judging whether or not the value is.

  According to a fifth aspect of the present invention, in the parking pole pressing force measuring device for a parking lock mechanism according to any one of the first to fourth aspects, there is provided a contact portion that is brought into contact with the pawl of the parking pole when the parking pole swings. The parking pole can be placed at an engagement standby position that is equal to the position where the pawl of the parking pole is in contact with the top of the parking gear by bringing the pawl of the parking pole into contact with the corresponding contact portion. A positioning gauge, a reference gauge interposed between the parking support and the parking support temporarily fixed to the transmission case by fixing bolts, and a pawl of the parking pole in a direction to sandwich the reference gauge between the parking poles Parking support that presses the parking support in the direction in which it touches the contact part It characterized in that it has a biasing means, and a fixing bolt fastening means for the fixed transmission case the parking support by tightening the fixing bolts to the specified torque.

According to the first aspect of the present invention, the mission case in which the drive shaft and the parking gear are not mounted is held by the mission case holding means. Then, the parking pole is moved in the axial direction by the parking pole swinging means to swing the parking pole in the direction approaching the parking gear, and the pawl of the parking pole is brought into contact with the pressed portion.

  Then, while the pressed part is moved by the pressed part moving means along the swinging direction of the parking pole, the pressing force by which the pawl of the parking pole presses the pressed part is measured by the pressing force measuring means.

  Thereby, the actual pressing force of the parking pole can be measured. Moreover, the pressing force of the parking pole according to the swing position of the parking pole can be measured by moving the pressed portion by the pressed portion moving means. Therefore, for example, the parking pole is moved from the engagement standby position where the pawl of the parking pole abuts to the top of the parking gear to the engagement completion position where the pawl of the parking pawl fully engages with the gear groove of the parking gear. The fluctuation state of the pressing force can be measured.

  The invention of claim 2 shows a specific configuration example of the pressed portion moving means included in the parking pole pressing force measuring device of the parking lock mechanism according to claim 1, and according to this, 1 After moving the moving table in the direction approaching the transmission case and placing the pressed part opposite the pawl of the parking pole, swing the parking pole in the direction approaching the parking gear by the parking pole swinging means, Press the pawl of the parking pole against the pressed part.

  Then, the eccentric groove plate is rotated by the servo motor, the cam floor is guided by the guide groove, the slide arm is moved in the reciprocating direction, and the pressed portion at the tip of the slide arm is moved along the swinging direction of the parking pole. Let

  As a result, the parking pole is pushed from the engagement standby position where the pawl of the parking pawl contacts the top of the parking gear to the engagement completion position where the pawl of the parking pawl fully engages with the gear groove of the parking gear. The pressure fluctuation state can be measured.

  According to the invention of claim 3, by moving the first moving table close to the transmission case and fitting the centering positioning means to the parking gear bearing portion of the transmission case, the pressed portion moving means is moved with respect to the transmission case. Centering positioning is possible. Therefore, the pressed part can always be placed at an accurate position with respect to the parking pole, and the fluctuation state of the pressing force of the parking pole from the engagement standby position to the engagement completion position can be accurately determined. Can be measured.

  According to the invention of claim 4, it can be determined whether or not the value of the pressing force measured by the pressing force measuring means is a value within a preset reference range. Therefore, for example, by displaying the determination result on a monitor or sounding a buzzer, it is possible to easily recognize whether or not the parking lock mechanism incorporated in the mission case has the desired performance.

  According to the invention of claim 5, the parking support is temporarily fixed to the transmission case by the fixing bolt, and after the reference gauge is interposed between the parking support and the parking pole, the first moving table is brought close to the transmission case. The contact portion of the parking pole positioning means is arranged at a predetermined position.

  Then, with the parking support pressing means, the reference gauge is sandwiched between the parking pole and the parking pole is swung to press the parking support in the direction in which the pawl of the parking pole comes into contact with the contact portion. Secure the parking support to the transmission case by tightening the fixing bolt with the specified torque.

  According to this, the parking pole is arranged at the engagement standby position, and the parking support is arranged at a position separated from the parking pole by a distance corresponding to the reference gauge interposed. Then, the parking support can be permanently fixed to such a place by tightening the fixing bolt with the specified torque by the fixing bolt tightening means.

  Therefore, it is possible to suppress the accumulated error due to the dimensional variation of each component part that occurs at the time of assembly. For example, when the P range is selected, the parking pole is arranged at the engagement completion position, and the other positions are moved from the P range. When selected, the parking pole can be securely pulled out of the gear groove of the parking gear and placed at a non-engagement position away from the parking gear.

  Next, embodiments of the present invention will be described with reference to the drawings. 1 to 3 are explanatory views (front view, side view, plan view) schematically showing the overall configuration of the assembling apparatus 1, and FIGS. 4 to 7 are a centering positioning unit 4 and a parking pole pressing force measuring unit. 6 is a front view, a view in the direction of arrow A in FIG. 4, a plan view, a view in the direction of arrow B in FIG. 4, and FIGS. FIG. 10 is a diagram for explaining the configuration of the fixing bolt fastening means, FIG. 11 is a diagram for explaining the configuration of the reference gauge 57 and its mounting state, and FIG. 12 is a sectional view taken along the line D-D in FIG. FIG. 13 is a block diagram of the control system, and FIG. 14 is a characteristic diagram showing the relationship between the pressing force of the parking pole and the swing amount. In addition, the same code | symbol is attached | subjected to the component similar to the past, such as an automatic transmission, and the detailed description is abbreviate | omitted.

  The assembly apparatus 1 is installed on a parking lock mechanism assembly stage provided in the middle of the assembly line of the automatic transmission. As shown in FIGS. 1 to 3, a transmission case holding unit 2 as a transmission case holding means, A shift range switching unit 3 as a parking pole swinging means, a centering positioning unit 4 as a centering positioning means and a parking pole positioning means, a parking support mounting fixing unit 5, a parking pole pressing force measuring unit 6, It has the control part 7 (refer FIG. 13).

  The mission case holding unit 2 moves from a retracted position below the upper surface of the line conveyor 21 to a projecting position above the upper surface of the conveyor, and comes into contact with a pallet 22 conveyed on the line conveyor 21. , And a stop block raising / lowering cylinder 24 for moving the stop block 23 up and down. During the work, the stop block 23 is moved to the protruding position and brought into contact with the pallet 22 so that the mission case 100 placed and fixed on the pallet 22 is placed at a preset work position and stopped after the work is finished. The block 23 is moved to the retracted position and is carried out from the parking lock mechanism assembly stage to the downstream side of the line.

  As shown in FIG. 2, the pallet 22 has a configuration that can be placed in an inverted posture in which the case front portion 100b side of the mission case 100 is disposed downward and the case rear portion 100a side is disposed upward, The line conveyor 21 is arranged such that the case upper part 100d side of the transmission case 100 placed on the pallet 22 is arranged on the right side in the line movement direction and the pallet 22 is arranged on the line downstream side from the upstream side in the state where the case lower part 100e is arranged on the left side in the line movement direction It has the structure moved to the side.

  The shift range switching unit 3 includes a position corresponding to the P range of the manual shift lever and a position corresponding to a range other than the P range of the lock arm 111 (see FIGS. 16 and 18) of the mission case 100 arranged at the work position. And the parking rod 107 is selectively disposed at the parking position and the non-parking position, as shown in FIG. 2, protruding and retracting from the base 11 side toward the line conveyor 21 side. An engaging arm 31 that can be engaged with the tip end portion of the lock arm 111 by a protrusion, an engagement arm advancing / retreating cylinder 32 that moves the engaging arm 31 forward and backward, and a tip portion engaged with the lock arm 111. The engaging arm raising / lowering cylinder 33 for moving the engaging arm 31 up and down is provided.

  Then, with the distal end engaged with the lock arm 111, the engagement arm 31 is moved upward and the lock arm 111 is swung toward the case rear portion 100a to place the parking rod 107 at the parking position and engage. The parking rod 107 is arranged at the non-parking position by moving the arm 31 downward and swinging the lock arm 111 toward the case front portion 100b.

  The centering positioning unit 4 is used for centering and positioning the parking pole pressing force measuring unit 6 with respect to the mission case 100 and for arranging the parking pole 103 at a preset reference position when the parking support 105 is attached. Yes, as shown in FIG. 3, the first moving table 80 that moves in the vertical direction on the upstream side of the line of the base frame 12 is provided.

  The first moving table 80 is guided by a pair of rails 12 </ b> A extending in the up and down direction on the line conveyor 21 side of the base frame 12 so as to be movable in the up and down direction. And has a table portion 81 that protrudes from the base frame 12 side toward the line conveyor 21 side on the line upstream side of the base frame 12 and extends in a substantially horizontal direction. The first lift cylinder 82 provided on the upper part of the base frame 12 is configured to move in the vertical direction at a position above the mission case 100.

  The table portion 81 is provided with a floating mechanism 83 that supports the centering positioning unit 4 so as to be movable in the horizontal direction, and the horizontal movement range by the floating mechanism 83 is regulated and placed at a preset origin position. A centering mechanism 84 is provided.

  As shown in FIGS. 4 to 6, the floating mechanism 83 includes a lower horizontal plate 83A extending substantially horizontally along the upper surface of the table portion 81 at a position above the table portion 81, and an upper portion of the lower horizontal plate 83A. It has an upper horizontal plate 83B that extends substantially horizontally along the upper surface of the lower horizontal plate 83A. As shown in FIGS. 4 and 5, the lower horizontal plate 83A is provided so as to be reciprocally movable in the longitudinal direction of the line conveyor 21 by the lower rail mechanism 83C, and the upper horizontal plate 83B is provided by the upper rail mechanism 83D. 21 is provided so as to be capable of reciprocating in the width direction.

  As shown in FIG. 5, the centering mechanism 84 has a predetermined gap between a restriction block 84A having a rectangular block shape attached to the upper surface of the upper horizontal plate 83B and a vertical wall surface of the restriction block 84A. As shown in FIG. 6, the movement restriction frame body 84B having the opposed surface portions facing each other is interposed between the vertical wall surfaces of the restriction block 84A and the respective opposed surfaces of the movement restriction frame body 84B. It is configured by a spring plunger 84C that is urged in a direction away from the facing surface and that places the restriction block 84A in the center of the movement restriction frame 84B.

  The restriction block 84A passes through a through hole formed in the center of the ceiling portion 86 supported substantially horizontally at a position above the table portion 81 by the plurality of leg portions 85, and protrudes above the ceiling portion 86 to move. The restriction frame body 84B is configured to protrude upward from the ceiling part 86 along the peripheral edge of the through hole of the ceiling part 86, and each opposing surface part is opposed to each vertical wall surface of the restriction block 84A.

  And as shown in FIG. 5, the upper end of the support | pillar part 87 which suspends and supports the centering positioning unit 4 is attached to the lower surface of the upper horizontal board 83B of the floating mechanism 83, The lower end of the support | pillar part 87 is The lower horizontal plate 83 </ b> A and the table portion 81 are inserted through opening holes that are formed so as to be continuous in the vertical direction and are disposed below the table portion 81.

  The centering positioning unit 4 includes a support plate 41 attached to the lower end of the support column 87. The support plate 41 is provided so as to extend in a substantially horizontal direction across the width direction of the line conveyor 21 at a position below the table portion 81, and the columnar shaft portion 42 extends downward from the lower surface of the support plate 41. It is attached so that it may protrude toward.

  A centering head 43 is provided at the lower end of the shaft portion 42. The centering head 43 has a cylindrical body portion 43A that extends coaxially from the lower end of the shaft portion 42 downward, and a disk-shaped tip portion 43B that is provided coaxially at the lower end of the body portion 43A. is doing.

  The front end 43B of the centering head 43 has a shape that can be engaged with a parking gear bearing hole 100c, which is a case hole for accommodating the parking gear bearing in a recess formed in the case rear part 100a. By approaching along the axial center axis X of the shaft rotation, the parking gear bearing hole 100c can be engaged, and by engaging, the centering positioning unit 4 is positioned relative to the transmission case 100, and the central axis of the shaft portion 42 is obtained. O is configured so as to be coaxial with the drive shaft rotation center axis X.

  Further, a stopper 44 is fitted and supported on the shaft portion 42. The stopper 44 is for contacting the claw 103a when the parking pole 103 is swung to place the parking pole 103 at the engagement standby position, and a cylinder having an inner diameter hole into which the shaft portion 42 is inserted. 44A and a contact surface portion 44B projecting radially outward from the main body portion 44A. Then, by the rotation of the main body portion 44A, the contact surface portion 44B is brought into a contact position where the parking face 102 is equal to the gear top surface 102b and a non-contact position where the parking pole 103 is retracted to the proximal end side. It is configured so that it can be selectively arranged.

  In FIG. 6, reference numeral 45 denotes a stopper rotation cylinder that rotates the main body 44 </ b> A of the stopper 44 and selectively places the contact surface 44 </ b> B at the contact position and the non-contact position. The stopper rotating cylinder 45 is provided on the upper surface of the support plate 41, the base end of the cylinder main body 45A is supported so as to be swingable in the horizontal direction along the upper surface of the support plate 41, and the tip of the cylinder rod 45B is the main body portion. It is pin-coupled to the upper part of 44A, and the contact surface portion 44B is disposed at the contact position by extension of the cylinder rod 45B, and is disposed at the non-contact position by contraction.

  At the abutting position, the pawl 103a of the parking pole 103 is brought into contact with the abutting surface portion 44B, so that the parking pole 103 can be arranged at the engagement standby position, and at the non-abutting position, the parking pole 103 is swung. It is comprised so that it can arrange | position to an engagement completion position when it hits.

  Further, as shown in FIG. 5, the body portion 43A of the centering head 43 is provided with a through-hole 43C that penetrates the body portion 43A in a direction perpendicular to the axis thereof, and the through-hole 43C has a through-hole 43C. A load cell 64 as a pressing force measuring means in the parking pole pressing force measuring unit 6 is accommodated.

  As shown in FIG. 4, the parking pole pressing force measuring unit 6 is provided on the support plate 41, and the pressed portion 61 pressed by the pawl 103 a of the parking pole 103 and the pressed portion 61 of the parking gear 102. Pressed portion moving means 62 for moving from the gear head top surface position, which is the same position as the gear top portion 102b, to the gear bottom surface position, which is the same position as the bottom surface of the gear groove 102a, and the pressed portion moved by the pressed portion moving means 62 A pressed portion position detecting means 63 for detecting the position of the portion 61; and a pressing force measuring means (which is attached to the pressed portion moving means 62 and measures the pressing force with which the pawl 103a of the parking pole 103 presses the pressed portion 61) Load cell) 64.

  The pressed portion moving means 62 rotates the slide arm 62A supported on the lower surface of the support plate 41 so as to reciprocate, the eccentric groove plate 62B that reciprocates the slide arm 62A by rotating, and the eccentric groove plate 62B. And a step motor 62C to be driven.

  The slide arm 62A is supported so as to reciprocate along the lower surface of the support plate 41 by a slide rail mechanism 46 provided on the lower surface of the support plate 41, and a load cell 64 is attached to one end of the slide arm 62A. The centering head 43 is inserted into the through hole 43C. The load cell 64 has a cell body fixed to the slide arm 62A, and is attached so that the pressed portion 61 protrudes along the slide movement direction of the slide arm 62A.

  A cam floor 65 projects upward from the other end of the slide arm 62A, and is engaged with the guide groove 62Ba of the eccentric groove plate 62B. The eccentric groove plate 62B is attached to the lower end of the rotary shaft 66 that is rotatably supported through the support plate 41 in the vertical direction, and extends in a substantially horizontal direction along the lower surface of the support plate 41. Is provided so as to face the upper surface of one end of the slide arm 62A.

  As shown in FIG. 7, the guide groove 62Ba is recessed in a ring shape on the lower surface of the eccentric groove plate 62B with the position eccentric from the rotation center of the eccentric groove plate 62B as a center, and rotates the eccentric groove plate 62B. As a result, the cam floor 65 engaged in the guide groove 62Ba is guided and guided in a direction to approach and separate from the rotation center, and the slide arm 62A is reciprocated to move the pressed portion 61 from the gear head top surface position to the gear bottom surface position. It is comprised so that it can be made to. In FIG. 4, reference numeral 68 denotes a spring, which urges the slide arm 62 </ b> A in a direction to pull the slide arm 62 </ b> A toward the retracting direction in the slide movement direction, and rattling occurs between the cam floor 65 and the guide groove 62 </ b> Ba. Is prevented.

  The step motor 62 </ b> C is provided at a position above the support plate 41 so that the rotating shaft is coaxially arranged with the rotating shaft 66, and the rotating shaft is connected to the rotating shaft 66 via the connecting shaft 67. Then, a drive signal from a motor driver (not shown) is received based on a control signal from the control unit 7, the rotation shaft is rotated by a rotation angle set in advance by the drive signal, and the eccentric groove plate 62 </ b> B is arbitrarily set. It is comprised so that it can arrange | position in a rotation angle position.

  The pressed portion position detecting means 63 includes a plurality of disk plates 63A coaxially arranged on the connecting shaft 67 and each disk plate 63A for detecting a position detection hole drilled in each disk plate 63A. The detection sensor 63B is provided, and by detecting the position detection hole by the detection sensor 63B, the rotation angle position of the eccentric groove plate 62B is recognized, and the slide arm 62A is detected from the rotation angle position of the eccentric groove plate 62B. It is comprised so that the position of the to-be-pressed part 61 may be detected by calculating | requiring the movement position of this.

  The parking support mounting / fixing unit 5 is for mounting and fixing the parking support 105 to the case rear portion 100a of the mission case 100, and moves up and down on the downstream side of the line of the base frame 12 as shown in FIGS. The second moving table 90 is provided.

  The second moving table 90 is guided by the rail 12A of the base frame 12 so as to be movable in the vertical direction, and protrudes from the base frame 12 side toward the line conveyor 21 on the downstream side of the base frame 12 in the line. It has a table portion 91 extending in a substantially horizontal direction, and is moved up and down by a second lift cylinder 92 provided on the upper portion of the base frame 12, and is moved up and down at a position above the mission case 100. Has been.

  As shown in FIG. 1, the parking support attaching / fixing unit 5 includes a parking support pressing means 51, a fixing bolt fastening means 54, and a gauge removing means 56 (see FIG. 8).

  The parking support pressing means 51 presses the parking support 105 temporarily fixed to the mission case 100 in a preset direction. As shown in FIG. 8, the parking support pressing means 51 is placed on the lower surface of the table portion 91 at the front end portion of the table portion 91. A parking support pressing cylinder 52 having a cylinder main body 52A attached and a cylinder rod 52B that can be advanced and retracted from the cylinder main body 52A, and a push of the parking support 105 by extension of the cylinder rod 52B. A pressing block 53 for pressing and moving the parking support 105 in a direction approaching the drive shaft rotation center axis X of the mission case 100 in contact with the contact surface 105b is provided.

  The fixing bolt fastening means 54 fastens and fixes the parking support 105 to the transmission case 100 by fastening the fixing bolts 108A and 108B temporarily fixing the parking support 105 to the case rear portion 100a with a specified torque. It is constituted by a pair of nut runners 55 fixed to 91. As shown in FIG. 9, the nut runner 55 is provided at a position where the socket 55a can be fitted to the fixing bolts 108A and 108B by the downward movement of the second moving table 90.

  The gauge removing means 56 removes the reference gauge 57 sandwiched between the parking support 105 and the parking pole 103 at the end of the mounting work of the parking support 105. As shown in FIG. A support bracket 56A provided so as to protrude downward from the lower surface, and an arm portion suspended from the lower end of the support bracket 56A and supported so as to be swingable toward and away from each other, and the lower end of the arm portion And a pair of chuck arms 56B projecting in a direction in which the claw portions approach each other, and a spring 56C that urges these chuck arms 56B in a direction in which they approach each other.

  The reference gauge 57 is chucked by the tip of the chuck arm 56 </ b> B by the downward movement of the second movement table 90, and the reference gauge 57 can be lifted upward by the upward movement of the second movement table 90.

  As shown in FIG. 12, the reference gauge 57 is sandwiched between the parking support 105 and the parking pole 103 so that the parking support 105 and the parking pole 103 are separated by a preset reference distance. It is intended to be disposed, and is in contact with the inner diameter hole 58a that can be attached to the distal end portion 107b by inserting the distal end portion 107b of the parking rod 107 and the small diameter portion 106a of the slide cam 106, and the parking support 105 and the parking pole 103, respectively. A cylindrical portion 58 having an outer diameter portion 58b, and a chuck portion 59 formed by a small diameter shaft 59a and a large diameter shaft 59b that are continuous in the axial direction from a lid portion that closes one end of the cylindrical portion 58. ing. The large-diameter shaft 59b of the chuck portion 59 has a tapered shape in which the diameter gradually contracts as it moves from the proximal end toward the distal end, and gradually moves between the distal ends of the chuck arms 56B by approaching in the axial direction. It is comprised so that it can be expanded.

  As shown in FIG. 11, the parking support 105 is constituted by a prismatic member that is curved in a substantially U shape in this embodiment, and a true end for inserting the fixing bolt 108A is inserted into one end. A circular mounting hole 105A is formed, and a fixing bolt 108B is inserted into the other end, and the other end is set in the direction of approaching and separating from the rotation axis X of the drive shaft within a predetermined range with the other end as a rotation center. A long hole-like mounting hole 105B is formed so as to be swingable.

  Further, a cam contact surface 105 a that contacts the slide cam 106 of the parking rod 107 is formed on the side surface of the parking support 105 on the parking pole 103 side, and a pressing block of the parking support pressing means 51 is formed on the opposite side surface. A pressing surface 105 b is formed for abutting 53 and pushing the parking support 105 in a direction approaching the parking pole 103.

  The control unit 7 is provided in a control panel (not shown) installed in the vicinity of the assembling apparatus 1 and includes a sequence program computer, a relay circuit, and the like. As shown in FIG. 13, the control unit 7 includes a preparatory work completion button 71, various sensors 72 a to 72 g that detect the presence of the pallet, the movement position of each unit, the load cell 64, and the pressed portion position detection unit 63 A detection sensor 63B and the like are connected, and on the output side, a first lift cylinder 82, a second lift cylinder 92, a stop block elevating cylinder 24, an engagement arm advance / retreat cylinder 32, an engagement arm elevating cylinder 33, Electromagnetic valves 73a to 73g, a nut runner 55, a step motor 62c, and the like for supplying compressed air to the stopper rotating cylinder 45 and the parking support pressing cylinder 52 are connected. The sequence program computer stores a sequence program for causing the apparatus 1 to attach the parking support 105 to the mission case 100 and inspecting the pressing force of the parking pole 103, and the memory checks the pressing force. A reference value is stored.

  Next, operation | movement of the apparatus 1 which has the said structure is demonstrated below. First, the operation for attaching the parking support 105 will be described, and then the operation for checking the pressing force of the parking pole 103 will be described.

  First, the stop block 23 is placed in the protruding position in advance, and a standby state in which the pallet 22 is transported is set to a standby state. In this standby state, when the pallet 22 on which the drive shaft (not shown) and the transmission case 100 before the parking support 105 are mounted is transported on the line conveyor 21, the pallet 22 hits the stop block 23. It comes into contact and is stopped at the parking lock mechanism assembly stage.

  Thereby, the mission case 100 fixed on the pallet 22 is in an inverted posture, the case upper portion 100d is positioned on the right side in the line traveling direction, and the case lower portion 100e is positioned on the left side in the line traveling direction. It is arranged at the work position in the posture state.

  When the mission case 100 is placed at the work position, as a preparatory work by the worker, a work for attaching the reference gauge 57 to the tip of the parking rod 107 and a parking support 105 are temporarily fixed to the case rear part 100a by the fixing bolts 108A and 108B. Fixing work is performed.

  The reference gauge 57 is attached by fitting the reference gauge 57 to the tip of the parking rod 107. Further, the work of temporarily fixing and fixing the parking support 105 is performed by inserting the tips of the fixing bolts 108A and 108B into the mounting holes 105A and 105B of the parking support 105 and screwing them into the bolt holes of the case rear portion 100a. . At this time, the parking support 105 is mounted so that it can freely swing in the direction orthogonal to the drive shaft rotation center axis X by the length of the mounting hole 105B with the fixing bolt 108A inserted through the mounting hole 105A as the rotation center. In addition, these preparatory work is not restricted to an operator's action, You may perform using labor-saving equipment etc.

  When the preparatory work is completed, the centering positioning unit 4 is set on the case rear portion 100a of the mission case 100 and the centering positioning operation is performed. When the preparation operation completion signal 71 is input by the operator operating the preparation operation completion button 71, the control unit 7 performs switching control of the electromagnetic valve 73a, supplies compressed air to the first lift cylinder 82, and performs the first movement. The table 80 is lowered from the standby position to bring the centering positioning unit 4 closer to the case rear part 100a of the mission case 100, and the tip part 43B of the centering head 43 is engaged with the parking gear bearing hole 100c of the mission case 100.

  As a result, the centering positioning unit 4 is centered and positioned on the case rear portion 100a of the mission case 100, and is disposed at a position where the center axis O of the shaft portion 42 coincides with the drive shaft rotation center axis X. Further, the contact surface portion 44B of the stopper 44 is disposed at the contact position.

  Next, an operation of setting the parking support mounting fixing unit 5 to the parking support mounting height position is performed. The control unit 7 performs switching control of the electromagnetic valve 73b, supplies compressed air to the second lift cylinder 92, lowers the second moving table 90 from the standby position, and moves the parking support mounting fixing unit 5 to the case of the transmission case 100. It is made to approach the rear part 100a and arrange | positions at a parking support attachment height position. Accordingly, the pressing block 53 of the parking support pressing means 51 is disposed at a position facing the pressing contact surface 105b of the parking support 105, and the socket 55a of the nut runner 55 is fitted to the bolt heads of the fixing bolts 108A and 108B. . Further, the chuck arm 56B of the gauge removing means 56 has a large diameter shaft 59b of the chuck portion 59 of the reference gauge 57 interposed between its tips, and is gradually swung in directions away from each other by the tapered shape of the large diameter shaft 59b. The claw is engaged with the small diameter shaft 59a.

  When the second moving table 90 is disposed at the parking support mounting height position, the parking support 105 is pressed by the parking support pressing means 51. The control unit 7 performs switching control of the electromagnetic valve 73f, supplies compressed air to the parking support pressing cylinder 52 of the parking support pressing means 51, causes the cylinder rod 52B to protrude from the cylinder body 52A, and causes the pressing block 53 to move. The parking support 105 is pressed against the pressing surface 105b.

  As a result, the parking support 105 in the temporarily fixed state is swung around the fixing bolt 108A inserted into the mounting hole 105A as an axis, and the mounting hole 105B side is pushed and moved in a direction approaching the drive shaft rotation center axis X.

  When the parking support 105 is pushed and moved, the parking pole 103 is swung in the direction approaching the drive shaft rotation center axis X via the reference gauge 57, and the claw 103a is pressed against the contact surface portion 44B of the stopper 44. The Accordingly, the parking pole 103 is disposed at a position equal to the position where the claw 103 a abuts against the gear top surface 102 b of the parking gear 102, and the parking support 105 is positioned at the position where the reference gauge 57 is sandwiched between the parking support 103 and the parking pole 103. Is arranged (see FIG. 11).

  By pressing the parking support 105 by the parking support pressing means 51, the parking pole 103 is disposed at a position equal to the position where the claw 103 a is in contact with the gear top surface 102 b of the parking gear 102, and the parking support 105 is connected to the parking pole 103. The nut runner 55 of the fixing bolt tightening means 54 is driven and the fixing bolts 108A and 108B are tightened to fix the parking support 105 to the case rear portion 100a.

  As a result, the parking pole 103 is arranged at a position equal to the position where the pawl 103a of the parking pole 103 is in contact with the gear top surface 102b of the parking gear 102, and a position separated from the parking pole 103 by a preset distance. The parking support 105 can be fixed to the vehicle. Therefore, the parking support 105, the parking rod 107, the slide cam 106, the parking pawl 103, and the parking gear 102 constituting the parking lock mechanism 101 can be always arranged in a predetermined positional relationship. For this reason, it is possible to absorb the errors of individual parts, eliminate the need for precise control of the accuracy of individual parts such as the parking support 105 and the parking pole 103, which has been necessary in the past, and reduce the cost accordingly. Can do.

  When the parking support 105 is fixed to the case rear portion 100a, the cylinder rod 52B of the parking support pressing means 51 is contracted to separate the pressing block 53 from the pressing surface 105b of the parking support 105. Then, the second moving table 90 is raised by the second lift cylinder 92, and the parking support mounting fixing unit 5 is retracted to a retracted position above the parking support mounting position.

  When the second moving table 90 is raised by the second lift cylinder 92, the gauge detaching means 56 is also moved upward, and the reference gauge 57 held at the tip of the chuck arm 56B is lifted upward to raise the parking support 105 and the parking pole. Remove from between 103.

  According to this, the reference gauge 57 can be reliably removed at the end of the attachment work of the parking support 105. Therefore, forgetting to remove the reference gauge 57 can be prevented, and the mission case 100 can be prevented from being conveyed downstream of the line with the reference gauge 57 attached.

  When the reference gauge 57 is removed from between the parking support 105 and the parking pole 103, the parking pole 103 is swung in a direction away from the drive shaft rotation center axis X by the urging force of the return spring 104, and the parking support. In cooperation with 105, the slide cam 106 is disposed at a non-engagement position that sandwiches the small-diameter portion 106 a.

  When the second moving table 90 is retracted to the retracted position and the reference gauge 57 is removed from between the parking support 105 and the parking pole 103, an operation for measuring the pressing force of the parking pole 103 is then performed.

  First, as shown in FIG. 7A, the main body portion 44A of the stopper 44 is rotated by the stopper rotating cylinder 45 to move the contact surface portion 44B from the contact position to the non-contact position. Then, as shown in FIG. 7B, the eccentric groove plate is rotated 180 ° by the step motor to move the slide arm 62A in the protruding direction, and the pressed portion 61 is disposed at the gear top surface position.

  Then, the engagement arm 31 of the shift range switching unit 3 is protruded toward the line conveyor 21 to engage the tip end with the lock arm 111 and the engagement arm 31 is moved upward to manually shift the lock arm 111. The parking rod 107 is moved from the non-parking position to the parking position by swinging from a position corresponding to a range other than the P range of the lever to a position corresponding to the P range.

  When the parking rod 107 is moved from the non-parking position to the parking position, the slide cam 106 interposed between the parking support 105 and the parking pawl 103 is interposed between the small diameter portion 106a and the taper portion 106b. Move to.

  As a result, the parking pole 103 is swung from the non-engagement position toward the engagement position, and the pawl 103 a comes into contact with the pressed portion 61 and is stopped at the engagement standby position. Here, the slide cam 106 is in a state where the midway position of the first taper portion 106b1 is sandwiched between the parking support 105 and the parking pole 103, and movement in the direction in which the diameter-expanded side is interposed is restricted.

  For this reason, the slide cam 106 is moved toward the base end 107 a side while compressing the spring 113 with respect to the parking rod 107, and is urged in the direction of moving toward the enlarged diameter side by the urging force of the spring 113. It becomes. Accordingly, the parking pole 103 is urged by the first taper portion 106b1 so as to swing from the engagement standby position toward the engagement completion position, and the claw 103a is pressed against the pressed portion 61 with a predetermined pressing force. .

  In this state, the eccentric groove plate 62B is rotated at a predetermined rotational speed by the step motor 62C to move the slide arm 62A in the retracted direction, and the pressed portion 61 is moved from the gear head top surface position toward the gear bottom surface position at a predetermined speed. The load cell 64 measures the change in the pressing force from the engagement standby position of the parking pole 103 to the engagement completion position.

  FIG. 14 is a characteristic diagram showing the relationship between the pressing force of the parking pole 103 and the swing amount. The horizontal axis represents the swing amount (stroke (mm)) of the parking pole 103, and the vertical axis represents the pressing force (load (g). )).

  As shown by a solid line in FIG. 14, the ideal pressing force of the parking pole 103 is substantially reduced while the parking pole 103 swings from the engagement standby position to the engagement completion position while slightly decreasing from the start of swinging. After maintaining a constant value (about 400 g) and once rising at about three-quarters from the engagement standby position to the engagement completion position (about 600 g), it rapidly decreases rapidly with that value as a peak, A minute value (approximately 0 g) is maintained near the engagement completion position. On the other hand, the actual measurement value increases or decreases due to an accuracy error of individual members constituting the parking mechanism 101, an error in the assembly position of the parking support 105, or the peak position fluctuates around the swinging direction.

  Therefore, the control unit 7 measures a process for determining whether the actually measured pressing force is a value within a preset reference range and whether the peak position is within a preset reference range. To do later. For example, when the detected pressing force is less than the reference value or when the peak is at a position outside the reference range as indicated by the broken line in FIG. It is determined that it is in 101, and control is performed to notify the worker by an alarm or the like.

  On the other hand, if the pressing force is a value within the reference range and the peak is within the reference range as shown by the ideal diagram in FIG. Control to unload downstream.

  When the mission case 100 is unloaded from the parking lock mechanism assembly stage after the measurement is completed, the engagement arm 31 of the shift range switching unit 3 is lowered and further retracted to engage the lock arm 111 of the engagement arm 31. To cancel. As a result, the parking rod 107 is moved from the parking position to the non-parking position, the small-diameter portion 106a of the slide cam 106 is interposed between the parking support 105 and the parking pole 103, and the parking pole 103 is swung so that it is not engaged. Arranged at the joint position

  When the engagement between the engagement arm 31 and the lock arm 111 of the shift range switching unit 3 is released, the first moving table 80 is then moved upward, and the centering positioning unit 4 is moved to the upper retracted position. When the first moving table 80 is moved to the retracted position and the centering head 43 is separated upward from the case rear portion 100a, the stop block 23 of the mission case holding unit 2 is moved to the retracted position and is brought into contact with the pallet 22. Canceled. Then, the pallet 22 is unloaded from the parking lock mechanism assembly stage to the downstream side of the line.

  According to the assembling apparatus 1 having the above-described configuration, whether or not the parking support 105 is assembled at an appropriate position, the actual pressing force of the parking pole 103 is measured after the assembly, and is adjusted to an appropriate value having a standard. Therefore, it is possible to reliably detect an assembly failure or a component failure of the parking lock mechanism 101. Therefore, it is possible to prevent a product that does not satisfy the standard from flowing into the market, relax the tolerance of each component, eliminate the need for high-quality accuracy, and reduce the number of man-hours for quality control of each component.

  In addition, this invention is not limited to the above-mentioned embodiment, A various change is possible in the range which does not deviate from the meaning of this invention. For example, in the above-described embodiment, the example in which the slide arm 62A, the eccentric groove plate 62B, and the step motor 62C are used as the pressed portion moving means 62 has been described. However, the pressed pressure being pressed by the pawl 103a of the parking pole 103 What is necessary is just to be able to move the part 61 along the swinging direction of the parking pole 103.

It is explanatory drawing (front view) which shows the whole structure of an assembly apparatus roughly. It is explanatory drawing (side view) which shows schematically the whole structure of an assembly apparatus. It is explanatory drawing (plan view) which shows the whole structure of an assembly apparatus roughly. It is a front view explaining the structure of a centering positioning unit and a parking pole pressing force measuring unit. It is an A direction arrow directional view of FIG. It is a top view explaining the structure of a centering positioning unit and a parking pole pressing force measuring unit. It is a B direction arrow directional view of FIG. It is a figure explaining the structure of a parking support attachment unit. It is a C direction arrow directional view of FIG. It is a figure explaining the structure of a fixing bolt fastening means. It is a figure explaining the structure of a reference gauge, and its attachment state. It is the figure which showed the DD sectional view of FIG. 11 from the arrow direction. It is a block diagram of a control system. It is a characteristic view which shows the relationship between the pushing force and the rocking | fluctuation amount of a parking pole. It is explanatory drawing which shows schematically the mission case of an automatic transmission. FIG. 16 is a view in the direction of arrow E in FIG. 15. It is a figure explaining the parking lock mechanism laid in a mission case. It is a figure which expands and shows the principal part of FIG. It is a figure explaining the structure of a slide cam.

Explanation of symbols

1 Assembly equipment 2 Mission case holding unit (mission case holding means)
3 Shift range switching unit (parking pole swinging means)
4 Centering positioning unit (centering positioning means and parking pole positioning means)
5 Parking support mounting fixing unit 6 Parking pole pressing force measuring unit 7 Control unit 21 Line conveyor 22 Pallet 31 Engaging arm 32 Engaging arm advance / retreat cylinder 33 Engaging arm lifting cylinder 41 Support plate 42 Shaft part 43 Centering head 44 Stopper 51 Parking support pressing means 54 Fixing bolt tightening means 56 Gauge removing means 57 Reference gauge 61 Pressed part 62 Pressed part moving means 63 Pressed part position detecting means 64 Pressing force measuring means (load cell)
65 Cam floor 66 Rotating shaft 80 First moving table 81 Table portion 82 First lift cylinder 83 Floating mechanism 84 Centering mechanism 90 Second moving table 91 Table portion 92 Second lift cylinder 100 Mission case 100a Case rear portion 100c Parking gear bearing hole 101 Parking Lock mechanism 102 Parking gear 102a Gear groove 103 Parking pole 103a Claw 105 Parking support 105A, 105B Mounting hole 106 Slide cam 107 Parking rod 108A, 108B Fixing bolt

Claims (5)

A parking rod attached to the transmission case of the automatic transmission and extending along the drive shaft is moved along the axial direction so that the transmission case is supported so as to be swingable in a direction perpendicular to the drive shaft. A direction in which a sliding cam interposed between a parking pole and a parking support arranged opposite to the parking pole and fixed to the transmission case is moved so that the parking pole approaches a parking gear provided on the drive shaft In the parking pole pressing force measuring device of the parking lock mechanism that engages the parking pawl of the drive shaft with the parking gear of the drive shaft,
Transmission case holding means for holding the transmission case in a state where both the drive shaft and the parking gear are not mounted ;
Parking pole swing for swinging the parking pole in a direction approaching the parking gear by engaging the parking rod of the transmission case held by the transmission case holding means and moving the parking rod in the axial direction thereof Means,
A pressed portion facing the pawl of the parking pole and pressed against the pawl of the parking pole by swinging of the parking pole by the parking pole swinging means;
A pressed portion moving means for moving the pressed portion along the swing direction of the parking pole;
A parking pole pressing force measuring device for a parking lock mechanism, comprising: a pressing force measuring means for measuring a pressing force with which the parking pole presses the pressed portion. A first moving table that moves in a direction approaching and separating from the mission case;
The pressed portion moving means is
A slide arm that is supported by the first moving table so as to be reciprocally movable along the swinging direction of the parking pole, the pressed portion is attached to the distal end, and the cam floor is attached to the proximal end;
A guide groove into which the cam floor is engaged is continuously recessed in a flat plate surface extending opposite to the slide arm on the base end side of the slide arm, and is shifted from the circumferential center of the guide groove. An eccentric groove plate rotatably supported by the first moving table with the position as a rotation center;
The parking lock mechanism according to claim 1, further comprising: a servo motor that rotates the eccentric groove plate to guide the cam floor with the guide groove and moves the slide arm in a reciprocating direction. Pole pressure measuring device.   Centering positioning means for engaging the parking gear bearing portion of the mission case by bringing the first moving table closer to the mission case and performing centering positioning of the pressed portion moving means with respect to the mission case. The parking pole pressing force measuring device for a parking lock mechanism according to claim 2. Claim 1, characterized in that it comprises a determination means for determining whether or not the value of the pressing force measured by the pressing force measuring means is a value within the reference range set in advance The parking pole pressing force measuring device of the parking lock mechanism described in 1 . The parking pole has an abutting portion that abuts on the pawl of the parking pole by swinging the parking pawl, and the pawl of the parking pole is brought into contact with the parking gear by bringing the pawl of the parking pole into contact with the corresponding portion. A parking pole positioning means capable of arranging the parking pole at an engagement standby position that is equal to a position in contact with the top surface;
A reference gauge interposed between the parking support and the parking pole temporarily fixed to the mission case by a fixing bolt;
A parking support pressing means for pressing the parking support in a direction in which the reference gauge is sandwiched between the parking pole and a direction in which a pawl of the parking pole is in contact with the contact portion;
Of the parking lock mechanism according to claim 1, characterized in that it comprises a fixing bolt fastening means for the fixing of the parking support to the transmission case by tightening the fixing bolts to the specified torque Parking pole pressing force measuring device.

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