JP2014030879A - Press-in device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To make a device compact.SOLUTION: A press-in device is provided with: a pallet rotating and moving mechanism 40 which rotates a pallet 20 supporting a work 100; an upper head moving mechanism 70 which slides an upper head 60 in a linear direction parallel with a rotation surface of the pallet 20 (work 100) and also lowers the upper head 60; and a lower head moving mechanism 90 which slides a lower head 80 in a linear direction which is parallel with the rotation surface of the pallet 20 and parallel with the sliding direction of the upper head 60 and in which the lower head 80 can face the upper head 60, and elevates the lower head 80. Then the pallet 20 (work 100) is rotated so that the upper head 60, a pressed-in part 101 of the work 100, and the lower head 80 are all in a vertical direction, and the upper head 60 and lower head 80 are slid and then moved to the side of the work 100 in the slid state so as to press a bearing 108 in the pressed-in part 101.

Description

  The present invention relates to a press-fitting device.

  Conventionally, as this type of press-fitting device, a first work support plate that is movable in a first direction (Y direction) with respect to a base that is horizontally supported on an upper middle portion of a peripheral frame, and a first work support A second workpiece support plate that is movable in the second direction (X direction) with respect to the plate, a press-fit side adapter that supports the bearing, and a press-fit side that is arranged below the base and pushes the press-fit side adapter upward. There has been proposed one including a rod, a backup side adapter, and a backup rod that is arranged on the upper side of the base and pushes the backup side adapter downward (see, for example, Patent Document 1). In this apparatus, with the workpiece attached to the second workpiece support plate, the workpiece is moved in the XY direction so that the press-fit adapter and the backup adapter are aligned on the attachment axis across the bearing mounting hole of the workpiece, In this state, the backup side adapter is pushed downward to press the upper surface of the bearing mounting hole, and the press fitting side adapter is pushed upward to press fit the bearing into the workpiece mounting hole.

Japanese Patent No. 4722766

  In the above press-fitting device, the workpiece can move in the XY direction, but the press-fit side adapter and the support side adapter cannot move in the XY direction. Therefore, depending on the position of the bearing mounting hole in the workpiece, the workpiece can move in the XY direction. Increased travel distance. For this reason, it has been necessary to increase the size of the apparatus in the XY direction to some extent.

  The main purpose of the press-fitting device of the present invention is to reduce the size of the device.

  The press-fitting device of the present invention employs the following means in order to achieve the above-mentioned main object.

The press-fitting device of the present invention is
A press-fitting device for press-fitting a press-fitting part into a workpiece press-fitting part,
A support rotating means that is rotatable in a state of supporting the workpiece;
An upper head disposed above the support rotation means;
An upper head moving means disposed on the upper side of the support rotation means, and sliding the upper head in a linear direction parallel to a rotation surface of the support rotation means and lowering the upper head;
A lower head disposed below the support rotating means;
It is arranged below the support rotation means, and the lower head is slid in a linear direction parallel to the slide direction of the upper head so that the lower head can face the upper head with the support rotation means interposed therebetween. Lower head moving means to be raised together,
With
The support rotation means is rotated so that the upper head, the press-fit portion, and the lower head are aligned in the vertical direction in a state where the press-fitting component is attached to at least one of the upper head and the lower head. The upper head and the lower head are slid, and in this state, the upper head and the lower head are moved in the vertical direction toward the workpiece side, and the press-fitting component is inserted into the press-fit portion. Press fit,
It is characterized by that.

  In the press-fitting device according to the present invention, the support rotation means that can rotate while supporting the workpiece, the upper head disposed above the support rotation means, and the upper head disposed above the support rotation means are supported by the support rotation means. An upper head moving means that slides and descends in a linear direction parallel to the rotation surface, a lower head disposed below the support rotation means, and a support rotation means disposed below the support rotation means to support the lower head And a lower head moving means for sliding and raising the lower head in a linear direction parallel to the sliding direction of the upper head so that the lower head can face the upper head. Then, in a state where the press-fitting component is mounted on at least one of the upper head and the lower head, the support rotating means is rotated so that the upper head, the press-fit portion, and the lower head are aligned in the vertical direction, and the upper head and The lower head is slid, and in this state, the upper head and the lower head are moved to the work side to press-fit the press-fitting component into the press-fit portion. As a result, the workpiece is moved in the first direction perpendicular to the vertical direction or the vertical direction and the second direction perpendicular to the first direction, but the upper head and the lower head are not moved in the first direction or the second direction. Thus, it is possible to suppress an increase in the movement distance of the workpiece when the upper head, the press-fit portion, and the lower head are aligned in the vertical direction. As a result, it is possible to reduce the size of the apparatus (specifically, downsizing in the direction parallel to the rotation surface of the rotation support means and perpendicular to the sliding direction of the upper head and the lower head). Here, “the state where the press-fit component is attached to at least one of the upper head and the lower head” is a state where the press-fit component is attached to the upper head but the press-fit component is not attached to the lower head. This means a state in which no press-fit component is mounted on the head but a press-fit component is mounted on the lower head, and a state in which press-fit components are mounted on both the upper head and the lower head.

  In such a press-fitting device according to the present invention, the upper head moving means is means for moving the upper head in a linear direction passing through the rotation shaft of the support rotating means, and the lower head moving means is the support rotating means. The lower head can be moved in a linear direction passing through the rotation axis.

  Further, in the press-fitting device according to the present invention, the support rotation means is a means including a support means for supporting the workpiece, and an elevating and rotating means capable of moving up and down and rotating the support means, and the upper head moving means. Is a means comprising a first head table to which the upper head is mounted, a first slide means for sliding the first head table, and a first lifting means for lifting and lowering the first head table, The lower head moving means includes: a second head table to which the lower head is mounted; a second slide means for sliding the second head table; and a second lifting means for raising and lowering the second head table. It can also be a means provided. In this case, the support means may be a means having a pallet for supporting the workpiece and a transport table for transporting the pallet. Moreover, the said raising / lowering rotation means can also be a means which is arrange | positioned under the said conveyance stand, raises, supports the said conveyance stand and the said pallet, and rotates in the state.

1 is a configuration diagram showing an outline of the configuration of a press-fitting device 10. FIG. 1 is a configuration diagram showing an outline of the configuration of a press-fitting device 10. FIG. It is a block diagram which shows the outline of a structure of the pallet rotation movement mechanism 40 periphery. It is a block diagram which shows the outline of the structure around the pallet 20. FIG. 5 is a configuration diagram showing an outline of a configuration of an upper press-fitting head 61. FIG. 5 is a configuration diagram showing an outline of the configuration around an upper head moving mechanism 70. 4 is a configuration diagram showing an outline of a partial configuration of a lower press-fitting head 81. FIG. It is a block diagram which shows the outline of a structure of the lower head moving mechanism 90 periphery. It is process drawing which shows each process in a press-fit process. It is explanatory drawing which shows the mode of process S110. It is explanatory drawing which shows the mode of process S130. It is explanatory drawing which shows the mode of process S150. It is explanatory drawing which shows a mode that the bearing 108 is press-fit in the upper side opening press-fit part 101a and lower side press-fit part 101b of a modification.

  Next, the form for implementing this invention is demonstrated using an Example.

  1 and 2 are configuration diagrams showing an outline of the configuration of the press-fitting device 10, FIG. 3 is a configuration diagram showing an outline of the configuration around the pallet rotation moving mechanism 40, and FIG. FIG. 5 is a configuration diagram illustrating an overview of the configuration of the upper press-fitting head 61, and FIG. 6 is a configuration diagram illustrating an overview of the configuration around the upper head moving mechanism 70. FIG. 7 is a configuration diagram showing a schematic configuration of a part of the lower press-fitting head 81, and FIG. 8 is a configuration diagram showing a schematic configuration around the lower head moving mechanism 90. As shown in FIG. 2 corresponds to a configuration diagram of the press-fitting device 10 of FIG. 1 viewed from the AA plane. In FIG. 1 and FIG. 2, illustration of a part of the pallet rotation moving mechanism 40 and the like is omitted for the convenience of illustration. Further, FIGS. 4, 6, and 8 correspond to top views of the periphery of the pallet 20, the upper head moving mechanism 70, and the lower head moving mechanism 90 viewed from above.

  The press-fitting device 10 according to the embodiment is a device used when performing a press-fitting process of press-fitting a bearing 108 as a press-fitting part into a press-fitted portion 101 of a work 100 such as a case for housing an automatic transmission. As shown in FIG. 2, the gantry 11, the pallet 20 that supports the workpiece 100 at the approximate center in the vertical direction (vertical direction) of the gantry 11, the pallet rotation moving mechanism 40 that rotates the pallet 20 (work 100), The upper head 60 and the upper head movement which is disposed above the pallet 20 in the gantry 11 and slides the upper head 60 in a linear direction (left and right direction in FIG. 1) parallel to the rotation surface of the pallet 20 (workpiece 100) and lowers it. The mechanism 70, the lower head 80, and the pallet 20 are arranged below the pallet 20 in the gantry 11. Lower head movement which is parallel to the rotation surface and parallel to the sliding direction of the upper head 60 and slides in the linear direction (left-right direction in FIG. 1) in which the lower head 80 can oppose the upper head 60 with the pallet 20 interposed therebetween. And a mechanism 90.

  The pallet 20 has a plurality of protruding portions 21 protruding upward on the upper surface, and the workpiece 100 can be supported by these protruding portions 21. In addition, the pallet 20 is mounted on a plurality of rollers 31 that are attached to a conveyance table 30 mounted on a mounting unit 15 that is substantially in the center in the vertical direction (vertical direction) of the gantry 11 and that are rotationally driven by a motor (not shown). After the pre-step of the press-fitting step, the center of the gantry 11 in the vertical direction (vertical direction) (see FIGS. 1 and 2) and the center of the carrier 30 (see FIG. 4) are driven by the rotation of the rollers 31. ) And is carried out of the press-fitting device 10 by the rotational driving of the plurality of rollers 31 after the press-fitting step. Holes 22 and 32 are formed in the center of the pallet 20 and the conveyance table 30 so that the pallet 20 and the conveyance table 30 can pass when the lower head 80 is raised.

  As shown in FIGS. 1 to 4, the pallet rotating / moving mechanism 40 includes a rotary table 41 for rotating the pallet 20 and the conveyance table 30, a lift base 45 that rotatably supports the rotary table 41, and a lift base 45. A lifting drive source 50 that lifts and lowers the rotary table 41 and a rotary drive source 55 that rotates the rotary table 41 are provided. The rotary table 41 has a plurality of protrusions 42 formed on the upper surface, and when the pallet 20 is lifted in a state where it is carried in substantially the center of the transfer table 30, these protrusions 42 are moved to the pallet 20 and the transfer table. A plurality of holes (not shown) formed in 30 are inserted. In addition, the rotary table 41 has a rolling member 43 attached to the lower surface, and the rolling member 43 can be rotated by rolling along an annular guide portion 46 formed on the upper surface of the lifting base 45. Yes. The rotary table 41 and the lift base 45 are formed with holes 44 and 47 at the center, like the pallet 20 and the transport table 30, so that the lower head 80 can pass through. The lifting drive source 50 includes a motor and a ball screw that converts power from the motor into power in the vertical direction (vertical direction in FIGS. 2 and 3) and transmits the power to the lifting base 45. The rotational drive source 55 includes a motor and a gear that transmits power from the motor to the rotary table 41.

  In this pallet rotating / moving mechanism 40, the lift base 45 and the rotary table 41 are integrally lifted by the lift drive source 50, and the plurality of protrusions 42 are inserted into the plurality of holes of the pallet 20 and the carriage 30, thereby causing the pallet 20. In addition, the carriage 30 can be positioned with respect to the rotary table 41. And the raising base 45, the rotary table 41, the conveyance stand 30, and the pallet 20 are further raised a little further integrally from the state, and the conveyance stand 30 can be lifted from the mounting part 15 of the mount frame 11. Further, in this state, the rotary table 41, the carriage 30, the pallet 20, and the workpiece 100 are integrally rotated by the rotation drive source 55 (see the broken line arrow in FIG. 4), so that the press-fit portion 101 of the workpiece 100 is rotated. It can be moved to any position around O (see FIG. 4).

  The upper head 60 is attachable to and detachable from the upper head table 71 of the upper head moving mechanism 70 and is held by the upper head holder 68 when not used. As the upper head 60, in the embodiment, an upper press-fitting head 61 used as a press-fitting side head at the time of performing the press-fitting process or an upper backup head 66 used as a non-fitting side (backup side) head is used. As shown in FIG. 5, the upper press-fitting head 61 is provided on the outer peripheral portion of the main body portion 62 having a circular cross section when viewed from the lower side, and is capable of gripping the bearing 108 and the main body portion. 62, a gripping portion 63 slidable in the axial direction. The upper backup head 66 is formed in the same shape as the main body 62 of the upper press-fitting head 61 except that the upper backup head 66 is not provided with a gripping portion. The detailed shape and size of the upper press-fit head 61 and the upper backup head 66 are designed according to the shape and size of the press-fit portion 101 and the bearing 108. Note that the number of the upper press-fitting heads 61 and the upper backup heads 66 is not limited to one, but may be a number corresponding to the number of the press-fitted parts 101 and the bearings 108. The upper head 60 is attached to and detached from the upper head table 71 by sliding or rotating the upper head holder 68.

  As shown in FIGS. 1, 2, and 6, the upper head moving mechanism 70 is disposed above the pallet 20 in the gantry 11, and the upper head 60 is attached to and detached from a head attaching / detaching portion 72 provided at the lower end portion. An upper head table 71, an elevating drive source 74 that moves the upper head table 71 up and down, and an upper head that slides the upper head table 71 in a linear direction parallel to the rotation surface of the rotary table 41 (left and right directions in FIGS. 1 and 6). A slide drive source 77. The upper base 12 at the top of the gantry 11 has the longitudinal direction in FIGS. 1 and 6 as the longitudinal direction so that the axis center of the upper head 60 passes through the rotation axis O of the rotary table 41 (see FIGS. 4 and 6). A long hole 13 is formed and a rail 14 is laid along the longitudinal direction of the long hole 13. The upper head table 71 is supported by the upper base 12 by fitting the concave portion 73 on the lower surface thereof to the rail 14 and is slidable in the left and right directions of FIGS. 1 and 6. 4A and 4B and FIG. 6 show the range (or the projection thereof in the vertical direction) that can be taken by the axis center of the upper head 60 at this time as the slide locus L. The elevating drive source 74 includes a motor, a ball screw that converts power from the motor into power in the vertical direction (vertical direction in FIGS. 1 and 2) and transmits the power to the upper head table 71. The upper head slide drive source 77 includes a motor and a ball screw that converts the power from the motor into the left and right power in FIG. 6 and transmits the power to the upper head table 71.

  In the upper head moving mechanism 70, the upper head 60 can be slid in the left and right directions of FIGS. 1 and 6 by the upper head slide drive source 77 in a state where the upper head 60 is mounted on the upper head table 71. The upper head 60 can be lowered by the drive source 74.

  The lower head 80 is attachable to and detachable from the lower head table 91 of the lower head moving mechanism 90 and is held by the lower head holder 88 when not in use. As the lower head 80, in the embodiment, a lower press-fitting head 81 used as a press-fitting side head during a press-fitting process or a lower backup head 86 used as a non-fitting side (backup side) head is used. did. As shown in FIG. 7, the lower press-fitting head 81 has a mounting portion 82 on which the bearing 108 is placed on the upper side, and the rest of the lower press-fitting head 81 includes the main body 62 and the upper backup head 66 of the upper press-fitting head 61. It is formed in the same shape as that upside down. The lower backup head 86 is formed in the same manner as the upper backup head 66 turned upside down. The detailed shape and size of the lower press-fitting head 81 and the lower backup head 86 are designed according to the shape and size of the press-fitted portion 101 and the bearing 108, as with the upper press-fitting head 61 and the upper backup head 66. Is done. Note that the number of the lower press-fitting heads 81 and the lower backup heads 86 is not limited to one, but may be a number corresponding to the number of the press-fitted parts 101 and the bearings 108. The lower head 80 is attached to and detached from the lower head table 91 by, for example, sliding or rotating the lower head holder 88.

  As shown in FIGS. 1, 2, and 8, the lower head moving mechanism 90 is disposed below the pallet 20 in the gantry 11, and the lower head 80 is attached to a head attaching / detaching portion 92 provided at the upper end portion. The lower head table 91 to be attached and detached, the raising / lowering drive source 94 for raising and lowering the lower head table 91, and the lower head table 91 parallel to the rotation surface of the rotary table 41 and parallel to the sliding direction of the upper head 60 And a slide drive source 97 that slides in a linear direction (left and right direction in FIGS. 1 and 8) in which the head 80 can face the upper head 60. On the lower base 16 slightly below the center of the gantry 11, the axis center of the lower head 80 passes through the rotation axis O (see FIGS. 4 and 8) of the rotary table 41 and is parallel to the elongated hole 13. 1 and FIG. 6 is formed with a long hole 17 as a longitudinal direction, and a rail 18 is laid along the longitudinal direction of the long hole 17. . The lower head table 91 is supported by the lower base 16 by fitting a recess 93 on the lower surface thereof to the rail 18 and is slidable in the left and right directions of FIGS. 1 and 8. Therefore, the slide trajectory L of FIGS. 4 and 6 and the slide trajectory L of FIG. 8 described above are vertical within a range that can be taken by the axial centers of the upper head 60 and the lower head 80 (or a projection thereof in the vertical direction). When looking in the direction, they match. The lifting drive source 94 includes a motor, a ball screw that converts power from the motor into power in the vertical direction (vertical direction in FIGS. 1 and 2) and transmits the power to the lower head table 91, and the like. The slide drive source 97 includes a motor, a ball screw that converts power from the motor into power in the horizontal direction in FIG. 8 and transmits the power to the lower head table 91, and the like.

  In the lower head moving mechanism 90, the lower head 80 can be slid in the left and right directions of FIGS. 1 and 8 by the slide drive source 97 with the lower head 80 mounted on the lower head table 91. The lower head 80 can be raised by the elevating drive source 94.

  Next, operation | movement at the time of performing a press injection process using the press injection apparatus 10 of the Example comprised in this way is demonstrated. In the embodiment, a press-fit portion 101 whose upper side is opened in the workpiece 100 (hereinafter referred to as an upper-open press-fit portion 101a) and a press-fit portion 101 whose lower side is opened (hereinafter referred to as a lower-open press-fit portion 101b) Are formed one by one, and the case where the bearing 108 is press-fitted in the order of the upper opening press-fit portion 101a and the lower opening press-fit portion 101b will be described.

  FIG. 9 is a process diagram showing each process in the press-fitting process. In the press-fitting process, first, the pallet 20 that supports the workpiece 100 is carried into the approximate center of the conveyance table 30 by the rotational drive of the roller 31 of the conveyance table 30 (step S100). And the raising / lowering base 45 and the rotary table 41 are raised integrally by the raising / lowering drive source 50, and the pallet 20 and the conveyance stand 30 are hold | maintained at the rotary table 41 (process S110). FIG. 10 is an explanatory diagram showing the state of step S110. In step S110, the lift base 45 and the rotary table 41 are integrally raised from the state where the step S100 is completed (FIG. 10A), and the plurality of projecting portions 42 of the rotary table 41 are moved to the pallet 20 and the carrier table 30. The plurality of holes are inserted (FIG. 10B). Thereby, positioning with respect to the rotary table 41 of the pallet 20 or the conveyance stand 30 is performed. Further, the elevating base 45, the rotary table 41, the conveying table 30, and the pallet 20 are slightly raised together to lift the conveying table 30 from the mounting portion 15 of the gantry 11 (FIG. 10C). As a result, the transport table 30 is held by the rotary table 41.

  When the rotary table 41 holds the pallet 20 and the conveyance table 30 in this manner, the upper opening press-fitting portion 101a, the upper press-fitting head 61, and the lower backup head 86 of the workpiece 100 are aligned in the vertical direction (vertical direction). Is performed (step S120). In this process, for the workpiece 100, the rotary table 41, the conveyance table 30, the pallet 20, and the workpiece 100 are integrally rotated by the rotation driving source 55 so that the upper opening press-fitting portion 101a is on the slide locus L (see FIG. 4). Further, the upper press-fitting head 61 is mounted on the upper head table 71 by the upper head holder 68, and in this state, the upper press-fitting head 61 is moved vertically above the upper opening press-fitting portion 101a by the upper head slide drive source 77. It is made to slide to the left-right direction of FIG. 6 so that it may become (refer FIG. 6). Further, the lower backup head 86 is mounted on the lower head table 91 by the lower head holder 88, and in this state, the lower backup head 86 is moved vertically to the upper opening press-fit portion 101a by the slide drive source 97. It slides in the left-right direction of FIG. 8 so that it may become a lower side (refer FIG. 8). Thereby, as shown in FIGS. 1 and 2, the upper press-fitting head 61, the upper opening press-fitting portion 101a of the workpiece 100, and the lower backup head 86 can be aligned in the vertical direction (vertical direction).

  In the embodiment, since the press-fitting device 10 is configured such that the work 100 can rotate and the upper press-fitting head 61 and the lower backup head 86 can slide in a linear direction, the work 100 is moved in the first direction (X Compared to the comparative example in which the press-fitting device is configured so that the upper press-fitting head 61 and the lower back-up head 86 cannot move in the first direction or the second direction. When the upper press-fitting head 61, the upper opening press-fitting portion 101a of the workpiece 100, and the lower backup head 86 are aligned in the vertical direction (vertical direction), the movement distance of the workpiece 100 can be suppressed from increasing. As a result, the press-fitting device 10 can be reduced in size, specifically, in the direction parallel to the rotation surface of the rotary table 41 and perpendicular to the sliding direction of the upper head 60 and the lower head 80 (the horizontal direction in the figure). Can be planned.

  Subsequently, the bearing 108 is press-fitted into the upper opening press-fitting portion 101a (step S130). FIG. 11 is an explanatory diagram showing the state of this step. In this step, from the state where step S120 is completed (FIG. 11A), the lower backup head 86 is moved up by the lift drive source 94 to the lower backup head 86 side from the upper opening press-fit portion 101a in the workpiece 100. Is brought into contact with the backup position 102a or stopped immediately before contact (FIG. 11 (b)). In that state, the upper press-fitting head 61 is lowered by the lifting drive source 74 to bring the bearing 108 into contact with the peripheral edge of the upper opening press-fitted portion 101a, and thereafter, by the vertically downward force by the upper press-fitting head 61, The bearing 108 is press-fitted into the upper opening press-fitting portion 101a (FIG. 11C). At this time, the grip part 63 of the upper press-fitting head 61 moves vertically upward with its lower end contacting the wall surface around the upper opening press-fitted part 101 a of the workpiece 100. When the axial direction of the upper opening press-fitting portion 101a of the workpiece 100 is slightly inclined with respect to the vertical direction (the press-fitting direction of the bearing 108), the upper press-fitting head 61 is lowered and the workpiece 100 is moved to the bearing 108 (upper press-fitting). When the pressure is reduced by the head 61) and the lower backup head 86, the vertical pressure is corrected by the narrow pressure. As a result, the bearing 108 can be press-fitted into the upper opening press-fit portion 101a so that the upper opening press-fit portion 101a and the bearing 108 are not galled. Then, the upper press-fitting head 61 is lifted by the lift drive source 74 and the lower backup head 86 is lowered by the lift drive source 94 to bring the upper press-fitting head 61 and the lower backup head 86 into positions immediately before performing step S130. Return (FIG. 11 (d)). Then, the upper head sliding drive source 77 slides the upper press-fitting head 61 to a position immediately before performing step S120 (immediately before mounting on the upper head table 71) and removes it from the upper head table 71 by the upper head holder 68. Then, the lower press-fitting head 81 is slid to the position immediately before performing step S120 (immediately before being attached to the lower head table 91) by the slide drive source 97 and removed from the lower head table 91 by the lower head holder 88. .

  Next, alignment is performed so that the lower opening press-fit portion 101b of the workpiece 100, the upper backup head 66, and the lower press-fit head 81 are aligned in the vertical direction (vertical direction) (step S140). In this step, for the workpiece 100, as in step S120, the rotary table 41, the conveyance table 30, the pallet 20, and the workpiece 100 are arranged by the rotation drive source 55 so that the lower opening press-fit portion 101b is on the slide locus L. Are rotated together (see FIG. 4). Further, the upper backup head 66 is mounted on the upper head table 71 by the upper head holder 68, and in this state, the upper backup head 66 is lowered by the upper head slide drive source 77 in the same manner as in step S120. It slides to the left-right direction of FIG. 6 so that it may become the vertical upper side of the press-fit part 101b (refer FIG. 6). Further, the lower press-fitting head 81 is mounted on the lower head table 91 by the lower head holder 88, and in this state, the lower press-fitting head 81 is moved to the lower side by the slide drive source 97 as in step S120. It slides to the left-right direction of FIG. 8 so that it may become the vertically lower side of the opening press-fit part 101b (refer FIG. 8). As a result, similarly to step S120, the upper backup head 66, the lower opening press-fitting portion 101b of the workpiece 100, and the lower press-fitting head 81 can be aligned in the vertical direction (vertical direction).

  Subsequently, the bearing 108 is press-fitted into the lower opening press-fit portion 101b (step S150). FIG. 12 is an explanatory view showing the state of this step. In this step, from the state where step S140 is completed (FIG. 12A), the upper backup head 66 is moved down by the lifting drive source 74 to be closer to the upper backup head 66 than the lower opening press-fit portion 101b in the workpiece 100. The work 100 is slightly pushed down by the backup head 66 after coming into contact with the backup position 102b (FIG. 12B). In this state, the lower press-fitting head 81 is raised to the height just before contacting the bearing 108 at the periphery of the lower opening press-fitting portion 101b by the lifting drive source 94. Thereafter, the upper backup head 66 is further lowered to press-fit the bearing 108 into the lower opening press-fit portion 101b while pushing down the workpiece 100 (FIG. 12C). When the axial direction of the lower opening press-fit portion 101a of the work 100 is slightly inclined with respect to the vertical direction (the press-fit direction of the bearing 108), the lower press-fit head 81 is raised and the work 100 is moved to the upper backup head. 66 and the bearing 108 (lower press-fitting head 81), the pressure is corrected so as to be in the vertical direction by the narrow pressure. As a result, the bearing 108 can be press-fitted into the lower opening press-fit portion 101b so that the lower opening press-fit portion 101b and the bearing 108 are not galled. Then, the upper backup head 66 is lifted by the lift drive source 74 and the lower backup head 86 is lowered by the lift drive source 94 to bring the upper backup head 66 and the lower press-fitting head 81 into positions immediately before performing step S150. Return (FIG. 12D). The upper head slide drive source 77 slides the upper backup head 66 to a position immediately before performing step S140 (immediately before mounting on the upper head table 71) and removes the upper backup head 66 from the upper head table 71 by the upper head holder 68. Then, the lower press-fitting head 81 is slid to a position immediately before performing step S140 (immediately before being attached to the lower head table 91) by the slide drive source 97 and removed from the lower head table 91 by the lower head holder 88. .

  When the press-fitting of the bearing 108 into the upper opening press-fitting portion 101a and the press-fitting of the bearing 108 into the lower opening press-fitting portion 101b are thus completed, the rotary table 41 is rotated by the rotary drive source 55 to rotate the rotary table 41. Is returned to the rotational position immediately before performing step S120 (immediately before the rotation of the rotary table 41), and in this state, the rotary table 41 is lowered by the lifting drive source 50, and the pallet 20 and the conveyance table 30 of the rotary table 41 are lowered. The holding is released (step S160). Then, the pallet 20 is unloaded from the conveying table 30 to the outside of the apparatus by the rotational driving of the roller 31 of the conveying table 30 (Step S170), and the press-fitting process is completed.

  In the press-fitting device 10 of the embodiment described above, the pallet rotation moving mechanism 40 that rotates the pallet 20 that supports the work 100 and the upper head 60 are slid in a linear direction parallel to the rotation surface of the pallet 20 (work 100). The lower head moving mechanism 70 and the lower head 80 to be lowered are parallel to the rotation surface of the pallet 20 and parallel to the sliding direction of the upper head 60, and the lower head 80 is slid in a linear direction facing the upper head 60 and lifted downward. A side head moving mechanism 90 is provided. A combination of the upper head 60 and the lower head 80 is used as a combination of the upper press-fitting head 61 and the lower backup head 86 or a combination of the upper backup head 66 and the lower press-fitting head 81. The pallet 20 (workpiece 100) is rotated so that the portion 101 and the lower head 80 are aligned in the vertical direction (vertical direction), and the upper head 60 and the lower head 80 are slid. The side head 80 is moved to the workpiece 100 side, and the bearing 108 is press-fitted into the press-fit portion 101. As a result, the workpiece 100 is moved in a first direction orthogonal to the vertical direction (vertical direction) or in a vertical direction and a second direction orthogonal to the first direction, but the upper head 60 and the lower head 80 are moved in the first direction or the second direction. The moving distance of the workpiece 100 is increased when the upper press-fitting head 61, the upper opening press-fitting portion 101a of the workpiece 100, and the lower backup head 86 are aligned in the vertical direction (vertical direction) as compared with the configuration in which the workpiece 100 is not moved in the direction. Can be suppressed. As a result, the press-fitting device 10 can be reduced in size, specifically, in the direction parallel to the rotation surface of the rotary table 41 and perpendicular to the sliding direction of the upper head 60 and the lower head 80 (the horizontal direction in the figure). Can be planned.

  In the press-fitting device 10 according to the embodiment, the upper head 60 and the lower head 90 can be attached to and detached from the upper head table 71 and the lower head table 91. Thereby, when the workpiece 100 has a plurality of press-fit portions 101 or when a plurality of types of workpieces 100 are used, the upper head 60 and the lower head 90 can be easily replaced.

  Furthermore, in the press-fitting device 10 of the embodiment, the long hole 13 of the upper base 12, the rail 14, and the upper head moving mechanism 70 are provided so that the axis center of the upper head 60 passes through the rotation axis O of the rotary table 41. The long hole 17 of the lower base 16, the rail 18, and the lower head moving mechanism 90 are provided so that the axis of the side head 80 passes through the rotation axis O of the rotary table 41. Thereby, even when the press-fit portion 101 of the work 100 is sufficiently close to the rotation axis O of the turntable 41, the press-fit portion 101 can be moved on the slide locus L by the rotation of the work 100.

  In the press-fitting device 10 of the embodiment, when the bearing 108 is press-fitted into the upper opening press-fitted portion 101a, the lower backup head 86 is raised and brought into contact with the backup position 102a or stopped just before the contact. In this state, the upper press-fitting head 61 is lowered and the work piece 100 is pushed down to press-fit the bearing 108 into the upper opening press-fitted portion 101a. However, the upper press-fitting head 61 is lowered and the upper opening press-fitted portion 101a. The bearing 108 may be brought into contact with the peripheral edge of the bearing, and in this state, the lower backup head 86 may be raised to press-fit the workpiece 108 into the upper opening press-fit portion 101a while pushing up the workpiece 100.

  In the press-fitting device 10 of the embodiment, when the bearing 108 is press-fitted into the lower opening press-fitted portion 101b, the lower backup head 86 is raised and brought into contact with the backup position 102b or stopped just before the contact. In this state, the upper backup head 66 is lowered and the work piece 100 is pushed down to press-fit the bearing 108 into the lower opening press-fit portion 101b. However, the lower press-fit head 81 is raised to lower the lower opening press-fit head 101b. The bearing 108 may be brought into contact with the periphery of the press-fit portion 101b, and the lower press-fit head 81 may be raised to push the bearing 108 and press-fit the bearing 108 into the lower opening press-fit portion 101b.

  In the press-fitting device 10 according to the embodiment, the long hole 13 of the upper base 12, the rail 14, and the upper head moving mechanism 70 are provided so that the axial center of the upper head 60 passes through the rotation axis O of the rotary table 41. Although the elongated hole 17 of the lower base 16, the rail 18, and the lower head moving mechanism 90 are provided so that the axial center of 80 passes through the rotational axis O of the rotary table 41, the axial center of the upper head 60 rotates. The long hole 13, the rail 14 and the upper head moving mechanism 70 of the upper base 12 are provided so as to pass through a predetermined position slightly deviated from the rotation axis O of the table 41, and the axis center of the lower head 80 passes through the predetermined position. Alternatively, the long hole 17, the rail 18, and the lower head moving mechanism 90 of the lower base 16 may be provided. In this case, if the press-fit portion 102 of the workpiece 100 is too close to the rotation axis O of the rotary table 41, the press-fit portion 102 may not move on the slide. Need to be supported.

  In the press-fitting device 10 of the embodiment, the case where the bearing 108 is press-fitted in the order of the upper opening press-fitted portion 101a and the lower opening press-fitted portion 101b has been described, but the lower opening press-fitted portion 101b and the upper opening press-fit portion 101a The bearings 108 may be press-fitted in order. Further, when there are a plurality of upper opening press-fit portions 101a and lower opening press-fit portions 101b, the bearings 108 may be press-fit in any order.

  In the press-fitting device 10 of the embodiment, the case where one upper opening press-fit portion 101a and one lower opening press-fit portion 101b are formed on the workpiece 100 has been described, but only the upper opening press-fit portion 101a is formed. Alternatively, only the lower opening press-fit portion 101b may be formed. In the former case, the steps S120 and S130 in the press-fitting step of FIG. 9 may not be executed, and in the latter case, the steps S140 and S150 in the press-fitting step of FIG. 9 may not be executed.

  In the press-fitting device 10 of the embodiment, the upper opening press-fit portion 101a and the lower opening press-fit portion 101b are formed on the workpiece 100. However, the upper opening press-fit portion 101a and the lower opening press-fit portion 101b are formed. May be formed at positions corresponding to the front and back sides of the workpiece 100 (formed at positions where they are aligned in the vertical direction when supported by the pallet 20). FIG. 13 shows how the bearing 108 is press-fitted into the upper opening press-fit portion 101a and the lower opening press-fit portion 101b in this case. In this case, the upper press-fitting head 61 in which the bearing 108 is set, the lower press-fitting head 81 in which the bearing 108 is set, the upper opening press-fitting portion 101a and the lower opening press-fitting portion 101b are aligned in the vertical direction (vertical direction). The pallet 20 (work 100) is rotated and the upper press-fitting head 61 and the lower press-fitting head 81 are slid. Then, in this state (FIG. 13A), the upper press-fitting head 61 and the lower press-fitting head 81 are moved to the workpiece 100 side, and bearings are placed on the upper opening press-fitting part 101a and the lower opening press-fitting part 101b. 108 is press-fitted (FIG. 13B). Then, the upper backup head 66 is raised and the lower backup head 86 is lowered (FIG. 13C).

  In the press-fitting device 10 of the embodiment, the bearing 108 is used as the press-fitting part, but an outer race, a knock pin, or the like may be used.

  The correspondence between the main elements of the embodiment and the main elements of the invention described in the column of means for solving the problems will be described. In the embodiment, the pallet 20, the conveyance table 30, and the pallet rotation moving mechanism 40 correspond to “support rotation means”, the upper head 60 corresponds to “upper head”, and the upper head movement mechanism 70 corresponds to “upper head movement means”. The lower head 80 corresponds to the “lower head”, and the lower head moving mechanism 90 corresponds to the “lower head moving means”.

  The correspondence between the main elements of the embodiment and the main elements of the invention described in the column of means for solving the problem is the same as that of the embodiment described in the column of means for solving the problem. Therefore, the elements of the invention described in the column of means for solving the problems are not limited. That is, the interpretation of the invention described in the column of means for solving the problems should be made based on the description of the column, and the examples are those of the invention described in the column of means for solving the problems. It is only a specific example.

  As mentioned above, although the form for implementing this invention was demonstrated using the Example, this invention is not limited at all to such an Example, In the range which does not deviate from the summary of this invention, it is with various forms. Of course, it can be implemented.

  The present invention is applicable to the press-fitting device manufacturing industry and the like.

  DESCRIPTION OF SYMBOLS 10 Press-fit apparatus, 11 mounts, 12 upper base, 13 long hole, 14 rail, 15 mounting part, 16 lower base, 17 long hole, 18 rail, 20 pallet, 21 protrusion part, 22 hole, 30 conveyance stand , 31 Roller, 40 Pallet rotational movement mechanism, 41 Rotating table, 42 Protruding part, 43 Rolling member, 44 hole, 45 Lifting base, 46 Guide part, 50 Lifting drive source, 55 Rotation drive source, 60 Upper head, 61 Upper press fit Head 62 Main body part 63 Grasping part 66 Upper backup head 68 Upper head holder 70 Upper head moving mechanism 71 Upper head table 72 Head attaching / detaching part 73 Recessed part 74 Lifting drive source 77 Upper head slide drive source , 80 lower head, 81 lower press-fitting head, 82 mounting section, 86 lower backup head 90 Lower head moving mechanism, 91 Lower head table, 92 Head attaching / detaching part, 93 Recessed part, 94 Elevating drive source, 97 Slide drive source, 100 Workpiece, 101 Press-fitted part, 101a Upper opening Press-fitted part, 101b Lower opening Press-fit part, 102a, 102b Backup position, 108 bearing.

Claims (3)

A press-fitting device for press-fitting a press-fitting part into a workpiece press-fitting part,
A support rotating means that is rotatable in a state of supporting the workpiece;
An upper head disposed above the support rotation means;
An upper head moving means disposed on the upper side of the support rotation means, and sliding the upper head in a linear direction parallel to a rotation surface of the support rotation means and lowering the upper head;
A lower head disposed below the support rotating means;
It is arranged below the support rotation means, and the lower head is slid in a linear direction parallel to the slide direction of the upper head so that the lower head can face the upper head with the support rotation means interposed therebetween. Lower head moving means to be raised together,
With
The support rotation means is rotated so that the upper head, the press-fit portion, and the lower head are aligned in the vertical direction in a state where the press-fitting component is attached to at least one of the upper head and the lower head. The upper head and the lower head are slid, and in this state, the upper head and the lower head are moved in the vertical direction toward the workpiece side, and the press-fitting component is inserted into the press-fit portion. Press fit,
A press-fitting device characterized by that. The press-fitting device according to claim 1,
The upper head moving means is means for moving the upper head in a linear direction passing through the rotation axis of the support rotating means,
The lower head moving means is means for moving the lower head in a linear direction passing through the rotation axis of the support rotating means.
Press-fitting device. The press-fitting device according to claim 1 or 2,
The support rotation means is a means provided with a support means for supporting the workpiece, and an elevating and rotating means capable of moving up and down and rotating the support means.
The upper head moving means includes a first head table to which the upper head is mounted, first slide means for sliding the first head table, and first lifting means for raising and lowering the first head table. Means,
The lower head moving means includes: a second head table to which the lower head is mounted; second slide means for sliding the second head table; second lifting means for raising and lowering the second head table; A means comprising
Press-fitting device.

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