Press-fitting device

Abstract

To provide a press-in device which can perform press-in vertically even when an attachment member arranged in an arrangement concavity of an attachment object member falls and is inclined.SOLUTION: A press-in device 1 arranges an attachment member M provided by a press-in part M2 by protruding to the outer periphery of a rod-like part M1 in an arrangement concavity N1 provided in an attachment object member N, and attaches the press-in part M2 to a press-in concavity N2 provided on the bottom of the arrangement concavity N1 by performing press-in with the pressing means 20. The pressing means 20 includes a plurality of claw parts 21 which are located around the rod-like part M1 and press the press-in part M2 when getting close to the press-in part M2 in the pressing direction. Tip parts of the respective claw parts 21 can be opened / closed in the direction of getting close to each other / being separated from each other, are configured to be separated from each other when being separated from the press-in part M2 in the pressing direction, and to get close to each other when getting close to the press-in part M2 in the pressing direction.SELECTED DRAWING: Figure 1

Description

Technical Field

[0001] The present invention relates to a press-fitting device that mounts a mounting member having a press-fitting portion protruding from the outer periphery of a rod-shaped portion in an arrangement recess provided in a member to be mounted, and presses the press-fitting portion into a press-fitting recess provided at the bottom of the arrangement recess.

Background Art

[0002] When a mounting member is arranged in an arrangement recess of a member to be mounted and the press-fitting portion of the mounting member is press-fitted into a press-fitting recess provided at the bottom of the arrangement recess for mounting, the seating of the mounting member arranged in the arrangement recess is poor, and the mounting member may fall and tilt and its position may not be stable. Therefore, conventionally, for example, as shown in FIG. 5, a cylindrical auxiliary jig 100 is inserted between the mounting member M and the arrangement recess N to prevent the mounting member M from tilting and stabilize the position. However, when using the auxiliary jig 100, there is a problem that handling of the auxiliary jig 100 occurs and the number of operations increases.

[0003] In addition, as conventional press-fitting devices, for example, those equipped with an alignment function have also been proposed. For example, Patent Document 1 describes a caulking punch device having a floating mechanism that holds a caulking punch in the Z-axis direction and allows displacement in the X-Y direction perpendicular to the Z-axis, and a centering mechanism that guides the lower end of the caulking punch to align the caulking die with the workpiece. Patent Document 2 describes a press-fitting device provided with a self-centering mechanism that aligns the central axes of a press-fitted component installed in a lower jig and a press-fitting component attached to an upper jig by providing a receiving portion connected to the lower jig in a floating state by an elastic body. Patent Document 3 describes a press-fitting device of a link and a pin of a power transmission chain in which the link is adsorbed and held so as to be movable in a direction perpendicular to the moving direction of a pressing jig, and when there is a relative displacement between the link held by the pressing jig and the pin, the link can move in a direction to eliminate the relative displacement as the pressing jig moves. However, in these press-fitting devices, although an auxiliary jig is not required, there is a problem that if the mounting member is tilted or fallen, the alignment function cannot absorb it, and the press-fitting will be performed obliquely.

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Patent Document 2

Patent Document 3

Summary of the Invention

Problems to be Solved by the Invention

[0005] The present invention has been made based on such problems, and an object thereof is to provide a press-fitting device capable of performing vertical press-fitting even if the mounting member disposed in the mounting recess of the member to be mounted is tilted or fallen.

Means for Solving the Problems

[0006] The press-fitting device of the present invention arranges a mounting member provided with a press-fitting portion protruding from the outer periphery of a rod-shaped portion in an arrangement recess provided in a member to be mounted, and presses the press-fitting portion into a press-fitting recess provided at the bottom of the arrangement recess for attachment. The press-fitting device includes holding means for holding the member to be mounted, pressing means for pressing the press-fitting portion to press the press-fitting portion into the press-fitting recess, and moving means for moving the holding means and the pressing means in a direction of relatively approaching or separating from each other. The pressing means has a plurality of claw portions that are positioned around the rod-shaped portion and press the press-fitting portion when approaching the press-fitting portion in the pressing direction. The tip portions of the respective claw portions can open and close in a direction of approaching or separating from each other, separate from each other when separated from the press-fitting portion in the pressing direction, and approach each other when approaching the press-fitting portion in the pressing direction, thereby correcting the posture of the mounting member.

Effects of the Invention

[0007] According to the present invention, since a plurality of claw portions are provided such that the tip portions separate from each other when separated from the press-fitting portion in the pressing direction and approach each other when approaching the press-fitting portion in the pressing direction, even if the mounting member arranged in the arrangement recess is tilted or inclined, the tip of the claw portion closes to vertically raise the mounting member and correct the posture. Therefore, the mounting member can be vertically press-fitted and attached.

Brief Description of the Drawings

[0008]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Embodiments for Carrying Out the Invention

[0009] Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

[0010] FIG. 1 shows the configuration of a press-fitting device 1 according to an embodiment of the present invention. (A) is an end view cut in the vertical direction, and (B) is an end view along the line I-I shown in (A). FIGS. 2 to 4 show the operation of the press-fitting device 1. FIGS. 2, 3, and 4(A) are end views cut in the vertical direction, and FIG. 4(B) is an end view along the line II-II shown in FIG. 4(A).

[0011] This press-fitting device 1 arranges a mounting member M provided with a press-fitting portion M2 protruding from the outer periphery of a rod-shaped portion M1 in an arrangement recess N1 provided in a member N to be mounted, and presses the press-fitting portion M2 into a press-fitting recess N2 provided at the bottom of the arrangement recess N1 for attachment. The size of the arrangement recess N1 is formed, for example, larger than the press-fitting portion M2. The size of the press-fitting recess N2 is formed, for example, slightly smaller than the press-fitting portion M2.

[0012] The press-fitting device 1 includes holding means 10 such as a jig or a mounting table for holding the member N to be mounted, pressing means 20 for pressing the press-fitting portion M2 to press the press-fitting portion M2 into the press-fitting recess N2, and moving means 30 for moving the holding means 10 and the pressing means 20 in a direction of relatively approaching or separating from each other. In FIG. 1, the case where the pressing means 20 is moved relative to the holding means 10 by the moving means 30 is shown, but the holding means 10 may be moved relative to the pressing means 20, or both the holding means 10 and the pressing means 20 may be moved.

[0013] The pressing means 20 has, for example, a plurality of claw portions 21 that are positioned around the rod-shaped portion M1 and press the press-fitting portion M2 when approaching the press-fitting portion M2 in the pressing direction, a claw support portion 22 that supports each claw portion 21 and moves it in the pressing direction, and a biasing member 23 that biases each claw portion 21. Each claw portion 21 is configured to be able to surround the periphery of the rod-shaped portion M1, for example, and is inserted between the placement recess N1 and the rod-shaped member M1 and has a thickness and length capable of pressing the press-fitting portion M2. Each claw portion 21 is preferably provided, for example, by being circumferentially divided so as to surround the entire outer periphery of the rod-shaped portion M1 when pressing the press-fitting portion M2. This is because the press-fitting portion M2 can be pressed over the entire circumference.

[0014] Each claw portion 21 is disposed relative to the claw support portion 22 so as to be openable and closable in a direction in which the tip portions approach or separate from each other. Note that the tip portion of the claw portion 21 is the end portion on the side of the press-fitting portion M2. The tip portions of each claw portion 21 are configured to separate from each other, for example, when separated from the press-fitting portion M2 in the pressing direction, and to approach each other when approaching the press-fitting portion M2 in the pressing direction. Thereby, even if the mounting member M disposed in the placement recess N1 is tilted and inclined, the posture of the mounting member M can be corrected vertically by the tip portions of each claw portion 21 closing.

[0015] Each claw portion 21 is biased, for example, by the biasing member 23 in a direction in which the tip portions separate from each other. The biasing member 23 is preferably configured by a compression coil spring, for example. One end portion of the biasing member 23 is disposed, for example, with respect to a first fixing portion 21C provided to project outward on the base end side of each claw portion 21. Note that the base end side of the claw portion 21 is the end portion on the side of the claw support portion 22. The first fixing portion 21C is provided on the outer peripheral side with respect to the fulcrum about which each claw portion 21 is disposed to be openable and closable with respect to the claw support portion 22, and a space is provided, for example, between the first fixing portion 21C and the claw support portion 22 in which the first fixing portion 21C can rotate about the fulcrum.

[0016] Further, between the first fixing portion 21C and one end portion of the biasing member 23, it is preferable that a force point adjusting member 21D made of, for example, a washer or the like disposed so as to be in contact with the first fixing portion 21C at a position on the outer peripheral side is disposed. By disposing the biasing member 23 on the first fixing portion 21C via the force point adjusting member 21D, the distance between the force point and the fulcrum is increased, so that the tip portions of the respective claw portions 21 can be easily opened.

[0017] The other end portion of the biasing member 23 is disposed, for example, on the outer periphery of each claw portion 21 with respect to a second fixing portion 24 provided so as to face the first fixing portion 21C on the tip side of the first fixing portion 21C. By configuring the biasing member 23 as, for example, a compression coil spring, a pressing force from the side of the second fixing portion 24 is applied to the first fixing portion 21C, and each claw portion 21 rotates about the fulcrum and is biased in a direction in which the tip portion opens.

[0018] Further, as the biasing member 23, a magnet may be installed near the second fixing portion 24 to perform biasing by magnetic force. For example, by installing a magnet on the surface of the second fixing portion 24 facing the claw portion 21 and configuring the claw portion 21 with a ferromagnetic material such as iron, it is possible to bias in a direction in which the tip portion opens. The biasing member 23 may perform biasing by a magnet instead of or together with the compression coil spring.

[0019] It is preferable that an inclined surface 21A inclined inward toward the tip is formed on the outside of the tip portion of each claw portion 21. This is to enable insertion without widening the distance between the placement recess N1 and the rod-shaped portion M1 more than necessary when the tip portions of the respective claw portions 21 are opened. The tip portion 21B of the inclined surface of each claw portion 21 is preferably configured to be located in the region inside the placement recess N1 in the opened state. Thereby, when the tip portion of the claw portion 21 approaches the press-fitting portion M2 in the pressing direction, the tip portion of the claw portion 21 is pressed in a closing direction by the inner peripheral surface of the placement recess N1. Note that the tip portion 21B of the inclined surface of each claw portion 21 is located on the outer peripheral portion of the rod-shaped portion M1 in the closed state, so that in the opened state, it is located in a region outside the outer peripheral surface of the vertically disposed rod-shaped portion M1.

[0020] When the tip of each claw portion 21 is open, its position can be controlled, for example, by locking each claw portion 21 with the second fixing portion 23 so that each claw portion 21 does not open more than a predetermined position. That is, the second fixing portion 23 can also function as a locking portion that locks each claw portion 21 and controls its movement range when the tip of each claw portion 21 moves in the opening direction. Note that the position when the tip of each claw portion 21 is open can be controlled, for example, not by locking each claw portion 21, but by adjusting the positional relationship between the fulcrum and the force point and the magnitude of the force applied by the biasing member 23.

[0021] The number of claw portions 21 is not limited as long as it is plural, but is preferably, for example, 3 or more and 6 or less, and most preferably 4. Having 3 or more makes it possible to easily correct the posture vertically by picking up the inclination no matter in which direction the mounting member M is inclined. On the other hand, if the number is too large, the structure becomes complicated.

[0022] This press-fitting device 1 is used, for example, as follows. First, for example, the member to be mounted N is placed on the holding means 10, and the press-fitting portion M2 of the mounting member M is placed downward in the arrangement recess N1 of the member to be mounted N. Next, for example, the pressing means 20 is moved in a direction approaching the holding means 10 by the moving means 30. As a result, each claw portion 21 moves in a direction approaching the press-fitting portion M2 as the pressing means 20 moves with the tip being open.

[0023] At this time, if the mounting member M arranged in the arrangement recess N1 is tilted and inclined, for example, as shown in FIG. 2, the upper end portion of the rod-shaped portion M1 abuts against the inside of the claw portion 21 on the inclined side, and as each claw portion 21 further approaches the press-fitting portion M2, the rod-shaped portion M1 is pushed inward. Next, when each claw portion 21 further approaches the press-fitting portion M2 and the tip of each claw portion 21 reaches the arrangement recess N1, for example, as shown in FIG. 3, the inclined surface 21A of each claw portion 21 abuts against the inner peripheral surface of the arrangement recess N1, and as each claw portion 21 further approaches the press-fitting portion M2, each claw portion 21 is pushed inward and the rod-shaped portion M1 is further pushed inward.

[0024] Subsequently, when each claw portion 21 approaches the press-fitting portion M2 further, for example, the inclined surface 21A of each claw portion 21 enters inside the arrangement recess N1, the tip portions of the claw portions 21 are in a closed state, the attachment member M becomes vertical, and the posture is corrected. Further, when each claw portion 21 approaches the press-fitting portion M2 and the tip portion of each claw portion 21, that is, the inclined surface tip portion 21B reaches the press-fitting portion M2, for example, as shown in FIG. 4, the press-fitting portion M2 is pressed by the tip portions of the claw portions 21 and is press-fitted into the press-fitting recess N2.

[0025] Also, after attaching the attachment member M, the pressing means 20 is moved in a direction away from the holding means 10 by the moving means 30. As a result, each claw portion 21 moves in a direction away from the press-fitting portion M2. When the tip portion of each claw portion 21 moves above the arrangement recess N1, the tip portion of each claw portion 21 is biased in an opening direction by the biasing member and is in an open state.

[0026] As described above, according to the present embodiment, since the plurality of claw portions 21 are provided such that the tip portions are separated from each other when separated from the press-fitting portion M2 in the pressing direction and the tip portions approach each other when approaching the press-fitting portion M2 in the pressing direction, even if the attachment member M arranged in the arrangement recess N1 is tilted or inclined, the tip of the claw portion 21 can close to vertically raise the attachment member M and correct the posture. Therefore, the attachment member M can be vertically press-fitted and attached.

[0027] As described above, the present invention has been described with reference to the embodiments. However, the present invention is not limited to the above embodiments and can be variously modified. For example, in the above embodiments, each component has been specifically described. However, not all components need to be provided, and other components may be provided. Also, the requirements of each component may be different.

[0028] Also, in the above embodiment, the case where each claw portion 21 is provided by being circumferentially divided so as to surround the entire outer periphery of the rod-shaped portion M1 has been described. However, the claw portions 21 may be provided at intervals.

Description of Reference Numerals

[0029] 1... Pressing device, 10... Holding means, 20... Pressing means, 21... Claw portion, 21A... Inclined surface, 21B... Tip of the inclined surface, 21C... First fixing portion, 21D... Force point adjusting member, 22... Claw support portion, 23... Biasing member, 24... Second fixing portion, 30... Moving means, M... Mounting member, M1... Rod-shaped portion, M2... Pressing portion, N... Member to be mounted, N1... Arrangement recess, N2... Pressing recess

Claims

1. A press-fitting device for attaching a mounting member having a press-fitting portion protruding from the outer periphery of a rod-shaped portion to a mounting recess provided in a member to be mounted, by disposing the mounting member in the mounting recess and press-fitting the press-fitting portion into a press-fitting recess provided at the bottom of the mounting recess, comprising: holding means for holding the member to be mounted; pressing means for press-fitting the press-fitting portion into the press-fitting recess by pressing the press-fitting portion; moving means for moving the holding means and the pressing means relative to each other in a direction of approaching or separating; the pressing means having a plurality of claw portions positioned around the rod-shaped portion and pressing the press-fitting portion when approaching the press-fitting portion in the pressing direction; the tip portions of the respective claw portions being openable and closable in a direction of approaching or separating from each other, separating from each other when separated from the press-fitting portion in the pressing direction, and approaching each other when approaching the press-fitting portion in the pressing direction, thereby correcting the posture of the mounting member characterized in that it is a press-fitting device.

2. the pressing means having a biasing member for biasing the tip portions of the respective claw portions in a direction of separating from each other; an inclined surface inclined inward toward the tip is formed on the outside of the tip portion of the claw portion; the tip portion of the inclined surface is located in the inner region of the mounting recess in the open state, and the tip portion of the claw portion is pressed in a closing direction by the inner peripheral surface of the mounting recess when approaching the press-fitting portion in the pressing direction characterized in that it is the press-fitting device according to claim 1.

Images