JP2006205295A - Part installing device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a compact part installing device, easily operable by manpower. <P>SOLUTION: This device installs a ring-shaped part in an installation hole of an installation object member having the installation hole; and is characterized by having a body part having a shaft hole and having an end surface of opening the shaft hole for forming a pressing surface, a shaft part relatively movably held by the body part in the shaft direction in a state of being inserted into the shaft hole and having a through-hole penetrating in the shaft direction, a rotary part rotatably held in the though-hole of the shaft part and locking a locking part arranged in a tip part on the installation object member by relative rotation, and an operation part for relatively rotating the rotary part to the shaft part and relatively moving the body part in the shaft direction to the shaft part; and can be operated by the manpower without requiring an actuator. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a component mounting apparatus for inserting and mounting a ring-shaped component in a mounting hole of a mounted member.

A wide variety of ring-shaped parts are used in mechanical devices such as automatic transmissions. A dedicated press-fitting device for inserting and mounting these ring-shaped parts is known. For example, in the press-fitting device described in Patent Document 1, a ring-shaped part is press-fitted and mounted by using a hydraulic cylinder or a pneumatic cylinder as an actuator.
JP-A-11-19831

  Since the press-fitting device as described in Patent Document 1 press-fits a ring-shaped part with a large pressing force, it is necessary to make a receiving part for receiving a larger pressing force strong. It becomes a large one. As a result, the area occupied by the press-fitting device also increases. Such an apparatus is difficult to be rearranged due to a process change or specification change.

  The present invention has been made in view of such circumstances, and an object thereof is to provide a component mounting apparatus that is compact and can be easily operated by human power.

Means for Solving the Problems and Effects of the Invention

  The component mounting device of the present invention is a device for mounting a ring-shaped component in the mounting hole of a mounted member having a mounting hole, and has an axial hole and the end surface where the axial hole opens serves as a pressing surface. A main body that presses the ring-shaped component toward the mounting hole of the mounted member, and a through-hole that is held in the main body so as to be relatively movable in the axial direction while being inserted through the axial hole, and penetrates in the axial direction A shaft portion penetrating through the ring-shaped component, and a locking portion that is rotatably held in the through-hole of the shaft portion and is provided at the distal end portion by relative rotation from the outer peripheral surface of the shaft portion. A rotating portion that protrudes to the side and engages with the mounted member; an operating portion that rotates the rotating portion relative to the shaft portion and moves the main body portion relative to the shaft portion in the axial direction; It is characterized by having.

  The component mounting apparatus of the present invention is used as follows. First, with the ring-shaped component inserted into the tip of the shaft portion of the component mounting device, the shaft portion is inserted into the mounting hole of the mounted member, and the ring-shaped component is sandwiched between the mounted member and the pressing surface of the main body. To a state to do.

  Next, the operating part is operated to rotate the rotating part relative to the shaft part, and the locking part of the rotating part protrudes further to the centrifugal side than the outer peripheral surface of the shaft part to lock the locking part to the mounted member. Let Thereby, the shaft portion is fixed to the mounted member. Thereafter, the operation unit is further operated, the main body is moved relative to the shaft in the axial direction, and the ring-shaped component is press-fitted into the mounting hole of the mounted member by the pressing surface of the main body.

  Since the shaft portion is fixed to the mounted member, the relative movement in the axial direction between the shaft portion and the main body portion causes the main body portion to move relative to the mounted member, and the ring-shaped component is the main body. The pressing surface of the portion and the mounted member are strongly pressed, and the ring-shaped component is pushed into the mounting hole of the mounted member. In other words, the reaction force for operating the operating portion is received by the locking portion that is locked to the mounted member, and the operating force of the operating portion becomes a pressing force so that the main body presses the ring-shaped part and press-fits it into the mounting hole. Become.

  Thereafter, the operation portion is operated in the reverse direction, the main body portion is moved relative to the shaft portion in the axial direction, and the shaft portion and the rotation portion are relatively rotated in the reverse direction so that the locking portion of the rotation portion is attached to the member To leave. Finally, the shaft portion is pulled out from the mounted member. This completes all operations.

  In the component mounting apparatus of the present invention, as described above, the ring-shaped component is mounted in the mounting hole of the mounted member by reducing the relative distance between the main body portion and the shaft portion with the operation portion. For this reason, unlike a large press-fitting device provided with a strong receiving part for receiving a pressing force, it can be made compact and have a small number of parts. Furthermore, a locking portion is provided to lock the shaft portion to the mounted member. Thus, the relative movement between the main body and the shaft becomes the relative movement between the main body and the mounted member, and the ring-shaped component can be easily mounted in the mounting hole by a simple manual operation. Moreover, the component mounting apparatus of this invention can be used as a small-sized device that can be used as a hand tool, and can easily be rearranged in accordance with a process change or specification change.

  The ring-shaped component mounted by the component mounting apparatus of the present invention is a ring-shaped member, such as a ring-shaped oil seal or a snap ring. The ring-shaped part may have a hole with a square cross section or a rectangular tube.

  The mounted member into which the ring-shaped component is inserted and mounted by the component mounting apparatus of the present invention has a mounting hole. The mounting hole may be a through hole. Moreover, if the protrusion for latching | locking part is formed in the surrounding surface of a hole, it may not be a through-hole.

  The component mounting apparatus of the present invention includes a main body portion, a shaft portion, a rotating portion, and an operation portion. The main body is a member that pushes the ring-shaped component into the mounting hole of the mounted member. The main body portion has a shaft hole, and an end surface where the shaft hole opens serves as a pressing surface for pressing the ring-shaped component. The portion forming the pressing surface is preferably a cylinder having an outer peripheral surface shape substantially the same as the inner peripheral surface shape of the mounting hole in which the ring-shaped component is mounted. Moreover, it is preferable to provide a stopper for restricting the movement of the main body portion on the outer peripheral surface of the cylindrical portion forming the pressing surface so as to come into contact with the mounted member. With this stopper, the depth of the ring-shaped part mounted in the mounting hole can be managed.

  The shaft portion is held by the main body portion so as to be relatively movable in the axial direction while being inserted into the shaft hole of the main body portion. The shaft portion has a through hole penetrating in the axial direction. Furthermore, the shaft portion passes through the ring hole of the ring-shaped part. The penetrating school may be eccentric to the side with respect to the axis.

  The rotating part has a locking part at its tip. The rotating portion is held in the through hole of the shaft portion so as to be relatively rotatable, and the locking portion protrudes further to the centrifugal side than the outer peripheral surface of the shaft portion by rotating the rotating portion relative to the shaft portion. As a result, the locking portion is locked to the mounted member. Here, the term “locking” means that when the main body portion is moved relative to the shaft portion in the axial direction and the ring-shaped component is strongly pressed between the pressing surface of the main body portion and the mounted member, the shaft portion and the mounted member are relatively It means not moving.

  The operating portion relatively rotates the shaft portion and the rotating portion and relatively moves the main body portion and the shaft portion in the axial direction. This operation part can also comprise a relative rotation operation and an axial direction relative movement operation with two types of members, respectively. When a large pressing force is required for the axial relative movement, it is preferable to use a toggle means.

  Hereinafter, an embodiment embodying the component mounting device of the present invention will be described.

  In this component mounting apparatus, the oil seal (ring-shaped component) S shown in FIGS. 1 and 2 has a large diameter with a large inner diameter of a stepped through hole of an automatic transmission case (hereinafter abbreviated as “A / T case”) A. This is for mounting in the recess (mounting hole) H. The small diameter hole of the stepped hole is referred to as a reference hole B.

  The structure of this component mounting apparatus will be described with reference to FIGS. 1 and 2, which are partial sectional views thereof. The component mounting apparatus 1 includes a main body portion 2, a shaft portion 3, a rotation portion 4, and an operation portion 5. The direction in which the oil seal S is press-fitted into the mounting hole H of the A / T case A by the component mounting apparatus 1 is defined as the downward direction for convenience of explanation.

  The body portion 2 is formed integrally with the flange portion 21, the barrel portion 22 formed coaxially and integrally with the flange portion 21, and eccentrically laterally with respect to the barrel portion 22. The pressing portion 23 is made. The flange portion 21 and the body portion 22 have a common axial hole-shaped working chamber 24. The pressing portion 23 has a cylindrical shape, and the shaft hole-shaped guide hole 25 is eccentrically communicated with the working chamber laterally. The outer peripheral diameter of the pressing portion 23 is slightly smaller than the inner peripheral diameter of the mounting hole H, and the inner peripheral diameter of the guide hole 25 of the pressing portion 23 is substantially the same as the inner peripheral diameter of the oil seal S. Note that the lower end surface of the pressing portion 23 becomes the pressing surface 231.

  Screw holes are formed in portions facing each other on the outer peripheral surface of the flange portion 21 rotated 180 degrees, and guide pins 26 whose tips protrude into the working chamber 24 are provided in these screw holes. A ring-shaped stopper 27 is fixed to the outer peripheral surface of the pressing portion 23 with a set screw 28. The lower end surface of the stopper 27 comes into contact with the upper surface where the mounting hole H of the A / T case A is opened, and the depth of the oil seal S pushed into the mounting hole H is defined.

  The shaft portion 3 has a rod shape with a constant outer diameter, and has a through hole 31 that is eccentric to the side of the shaft center. The outer peripheral diameter of the shaft portion 3 is slightly smaller than the inner diameter of the guide hole 25 of the pressing portion 23 of the main body portion 2 and slightly smaller than the inner peripheral diameter of the reference hole B below the mounting hole H of the A / T case A. ing. The shaft portion 3 is inserted and held in the guide hole 25 so as to be relatively movable in the axial direction. As shown in FIG. 1, the length of the shaft portion 3 is such that its lower end slightly protrudes to the lower opening end below the mounting hole H of the A / T case A.

  The rotating portion 4 is fitted to the main shaft portion 41, a leg portion 43 having a locking portion 42, a connecting portion 44 for connecting the main shaft portion 41 and the leg portion 43, and the main shaft portion 41 so as to be relatively movable in the axial direction. A fulcrum member 45 having a shaft hole, and a guide member 46 that is coaxially fixed to the lower end portion of the fulcrum member 45 and is held in the working chamber 24 of the flange portion 21 of the main body 2 so as to be relatively rotatable. . The main shaft portion 41, the leg portion 43, the fulcrum member 45, and the guide member 46 have the same axis.

  The main shaft portion 41 has a rod shape with a constant outer diameter, and has a screw hole on the lower end surface.

  The leg portion 43 has a thin rod shape with a constant outer diameter, and has a locking portion 42 that protrudes one side at the lower end. The leg portion 43 is inserted into the through hole 31 of the shaft portion 3 from its lower end, the locking portion 42 abuts on the lower end surface of the shaft portion 3, and the upper end portion of the leg portion protrudes from the upper bridge of the through hole 31. It is held by the shaft portion 3. Since the through hole 31 is eccentric from the axis of the shaft portion 3, the locking portion 42 includes a cylindrical shape including the outer peripheral surface of the shaft portion 3 within a predetermined rotation angle range of the leg portion 43 as shown in FIG. 1. As shown in FIG. 2, the distal end portion of the locking portion 42 is located on the centrifugal side from the cylindrical space including the outer peripheral surface of the shaft portion 3 within the space and within the other predetermined rotation angle range of the leg portion 43. It will be a position protruding.

  The connecting portion 44 has a cylindrical shape, and the lower end of the core material, one end of which is screwed into the screw hole at the lower end of the main shaft portion 41, is inserted from the upper end opening. As shown in FIG. It is integrally fixed to the connecting portion 44. Thereby, the connecting portion 44 and the main shaft portion 41 are fixed coaxially. Further, the upper end portion of the leg portion 43 protruding from the upper end of the shaft portion 3 is inserted from the lower end opening of the connecting portion 44 and is fixed integrally with the connecting portion 44 by a set screw 442. The main shaft portion 41 and the leg portion 43 are coaxially integrated by the connecting portion 44. The shaft portion 3 is held between the lower end of the connecting portion 44 and the locking portion 42 in a state where the shaft portion 3 is fitted to the leg portion 43, and relative movement in the axial direction is restricted. Note that the shaft portion 3 and the leg portion 43 are relatively rotatable.

  The fulcrum member 45 is a male screw having a shaft hole 451, and its head portion 452 has a square plate shape, and a screw portion 453 is integrally formed on the lower end surface of the head portion 452. The fulcrum member 45 is inserted into the shaft hole 451 so that the main shaft portion 41 of the rotating portion 4 can move in the axial direction.

  The guide member 46 includes a flange-shaped head portion 462 having a shaft hole 461 and a cylindrical shaft portion 463. The shaft hole 461 is fitted with the screw portion 453 of the fulcrum member 45, and the guide member 46 and the fulcrum member 45 are coaxially formed by a screw 464 that is screwed into a screw hole extending in the axial direction from the outer peripheral surface of the flange-shaped head portion 462. It is integrated. Note that a guide groove 465 is provided around the outer peripheral surface of the cylindrical shaft portion 463 of the guide member 46 so that the tip of the guide pin 26 of the flange portion 21 is guided. The guide groove 465 and the guide pin 26 restrict the relative movement of the main body 2, the fulcrum member 45 of the rotating unit 4, and the guide member 46 in the axial direction, and only allow relative rotation.

  The operation unit 5 includes a swing member 51 and an operation member 52. The oscillating member 51 is composed of two oscillating plates 511 that are parallel to each other and supported at one end on the opposite side surfaces of the head 452 of the fulcrum member 45, and these oscillating plates 511 are laterally disposed at the center portion thereof. And a bridging member 512 that integrally fixes the two at the position. The operation member 52 includes a bar-shaped arm portion 521 at one end portion and a bifurcated portion 522 that is bifurcated at the other end portion and bent at a right angle to be spaced apart from each other at a predetermined interval. The outer peripheral surface of the arm portion 521 is coated with a soft resin. The bifurcated portion 522 penetrates from one of the bifurcated portions 522 in a direction perpendicular to the shaft center while pinching the tip portion of the main shaft portion 41 of the rotating portion 4, and is supported by the other end of the bifurcated portion 522. A moving shaft 523 is provided. Further, a portion of each bifurcated portion 522 close to the operation member 52 and the other end portion of each swing member 51 are pivotally supported by a shaft support portion 524 so as to be swingable. Note that the shaft support portions 524 and the bridging member 512 at both ends of the swing plate 51 have a triangular shape with their vertices as vertices.

  The component mounting apparatus of the present embodiment has the above-described configuration.

  Next, a method for press-fitting the oil seal S into the mounting hole H of the A / T case A will be described.

  First, as shown in FIG. 1, the arm part 521 of the operation part 5 of the component mounting apparatus 1 is raised upward. As a result, the shaft portion 3 and the rotating portion 4 are integrally lowered with respect to the main body portion 2, and the lower portion of the shaft portion 3 protrudes longer than the pressing surface 231 of the pressing portion 23. Then, the operation unit 5 is relatively rotated with respect to the main body unit 2 so that the locking unit 42 of the rotating unit 4 is positioned within the lower end surface of the shaft unit 3, that is, in the state of FIG. 1. This state is a work start state of the component mounting apparatus 1.

  Next, the oil seal S is fitted into the shaft portion 3 from the lower end of the locking portion 42 and the shaft portion 3. Then, the lower end of the shaft portion 3 into which the oil seal S is fitted is fitted into the mounting hole H and the reference hole B of the A / T case A. The shaft portion 3 moves downward along the mounting hole H and the reference hole B, and the lower end of the shaft portion 3 slightly appears on the lower end surface of the A / T case A.

  This state is shown in FIG. The shaft portion 3 is fitted in the reference hole B, and the shaft portion 3 and the oil seal S are in a coaxial position sharing the same axis as the reference hole B and the mounting hole H. The fact that the oil seal S and the mounting hole H are coaxial is located at the final position where the oil seal S and the mounting hole H are press-fitted.

  Next, the arm part 521 of the operation part 5 is rotated 180 degrees with respect to the main body part 2. As a result, the operation unit 5 and the rotating unit 4 rotate 180 degrees relative to the main body unit 2, the shaft unit 3, and the oil seal S. In FIG. 1, the arm portion 521 is positioned on the left side in the drawing, the locking portion 52 moves to the right side, the locking portion 42 protrudes to the right side from the lower end surface of the shaft portion 3, and the locking portion 42 is A / T. It will be in the state located below the end surface where the reference hole B of case A opens. The positional relationship between the A / T case A and the locking portion 42 is as shown in FIG. As a result, the locking portion 42 is locked to the lower end surface of the A / T case A.

  In this state, the arm portion 521 of the operation unit 5 is pushed downward. As a result, the main body 3 moves downward relative to the shaft 3 and the rotating part 4. Specifically, the rotating portion 4 and the shaft portion 3 cannot move upward because the locking portion 42 is locked to the lower end surface of the A / T case A. For this reason, the main body 2 is relatively lowered with respect to the A / T case A including the shaft portion 3 and the rotating portion 4. When the main body 2 is lowered, the pressing portion 23 is also lowered, and the oil seal S is press-fitted into the mounting hole S by the pressing surface 231. The lowering of the main body 2 continues until the stopper 27 comes into contact with the upper end of the A / T case A and stops. With the stopper 27 in contact with the upper end of the A / T case A, the oil seal S is pushed into the mounting hole H to a predetermined depth and stopped. As a result, the oil seal S is mounted in the mounting hole H as intended. This state is shown in FIG.

  After that, only the process of detaching the component mounting apparatus 1 from the A / T case A is performed. First, the arm part 521 of the operation part 5 is rotated 180 degrees, and the locking part 42 is again positioned in the lower end surface of the shaft part 3. As a result, the locking between the locking portion 42 and the lower end surface of the A / T case A is released. Next, the arm portion 521 is pulled upward, and the shaft portion 3 and the rotating portion 4 are moved upward. Thereafter, the entire component mounting apparatus 1 is pulled up from the A / T case A and detached from the A / T case A. This completes all work.

  This operation can be easily performed by one worker. That is, in this embodiment, since the toggle clamp means is used for the operation portion 5, the ring-shaped member can be easily mounted in the mounting hole H with a weak force such as human power.

It is operation explanatory drawing containing the fragmentary sectional view of the component mounting apparatus of an Example. It is other operation explanatory drawing including the fragmentary sectional view of the components mounting apparatus of an Example.

Explanation of symbols

1: Component mounting device 2: Main body portion 3: Shaft portion 4: Rotating portion 5: Operation portion 23: Pressing portion 231: Pressing surface 42: Locking portion A: A / T case H: Mounting hole S: Oil seal

Claims (5)

A component mounting device for mounting a ring-shaped component in the mounting hole of a mounted member having a mounting hole,
A main body portion that has a shaft hole and an end surface of which the shaft hole opens serves as a pressing surface and presses the ring-shaped component toward the mounting hole of the mounted member;
A shaft portion that is held in the main body portion so as to be relatively movable in the axial direction in a state of being inserted into the shaft hole, has a through hole that penetrates in the axial direction, and penetrates the ring-shaped component;
A rotating portion that is rotatably held in the through hole of the shaft portion, and a locking portion provided at a distal end portion by relative rotation protrudes from the outer peripheral surface of the shaft portion to the distal side and locks to the mounted member; ,
An operation unit for rotating the rotating unit relative to the shaft unit and moving the main body unit in the axial direction relative to the shaft unit;
A component mounting apparatus comprising:   The component mounting apparatus according to claim 1, wherein a portion of the main body portion forming the pressing surface has a cylindrical shape having an outer peripheral shape substantially the same as an inner peripheral surface shape of the mounting hole.   The component mounting apparatus according to claim 2, wherein a stopper is provided on an outer peripheral surface of the cylindrical portion forming the pressing surface so as to abut against the mounted member and restrict movement of the main body.   The through hole of the shaft portion is an eccentric hole that is eccentric to one side from the shaft center, and the locking portion is located in a state of being biased to one side from the shaft center with respect to the shaft portion. The component mounting apparatus according to any one of claims 1 to 3. The component mounting apparatus according to claim 1, wherein the operation unit has a toggle clamp mechanism.

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