Attachment device

Abstract

To provide an attachment device which can properly attach a component to an opening part of an attachment object.SOLUTION: An attachment device 100 according to the disclosure attaches a component PT to an opening Ma of an attachment object M. The attachment device 100 includes: a holding part 20 having holes 21 for holding the components PT; and a protruding part 10 which makes a shaft 1 protrude into the hole 21 to fit the held component PT into the opening Ma of the attachment object M. The protruding part 10 includes a swing part 3 which swingably supports the shaft 1.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present disclosure relates to a mounting device. [Background technology]

[0002] The mounting device disclosed in Patent Document 1 holds a part such as a hole plug or grommet in a hole and protrudes the part from the hole along an axis, thereby mounting the part to an opening in a mounting target body. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2022-143593 A Summary of the Invention [Problem to be solved by the invention]

[0004] The present inventors have discovered the following technical problems. If the position of the component is misaligned with the opening of the mounting target, the component may not be properly mounted in the opening of the mounting target.

[0005] The present disclosure has been made in consideration of the above-mentioned problems, and provides an attachment device that can properly attach a component to an opening of an attachment target body. [Means for solving the problem]

[0006] The mounting device according to the present disclosure is a mounting device for mounting a component to an opening of a mounting target, comprising: a holding portion having a hole for holding a component; a protruding portion for protruding a shaft into the hole and fitting the held component into an opening of a mounting body, The protruding portion includes a swing portion that swingably supports the shaft.

[0007] The above-mentioned mounting device further includes a rotation drive unit, The holding portion is supported rotatably around a rotation axis, The plurality of holes are provided at equal intervals on a circumference centered on the rotation axis in the holding portion, The protruding portion protrudes the shaft into the hole along an axis parallel to the rotation axis, and the held part is fitted into an opening of a mounting body, The rotation drive portion may rotate the holding portion about the rotation axis so that the protruding portion can protrude the shaft into a hole adjacent on the circumference to the hole through which the protruding portion is protruded.

[0008] Moreover, in the above-described mounting device, the protruding portion may include a plurality of rods arranged in parallel and movable in the direction in which the shaft protrudes, and a plurality of sliding bearings that guide the plurality of rods, respectively. Effect of the Invention

[0009] According to the present disclosure, a component can be appropriately attached to an opening of a mounting body. [Brief description of the drawings]

[0010] [Figure 1] 1 is a partially cutaway cross-sectional view showing one configuration example of an attachment device according to embodiment 1. FIG. [Diagram 2] 1 is a plan view showing a main part of a configuration example of a mounting device according to a first embodiment. [Diagram 3] 1 is a partially cutaway cross-sectional view showing a main part of a configuration example of a mounting device according to embodiment 1. FIG. [Figure 4] 1 is a side view showing a main part of a configuration example of a mounting device according to embodiment 1. FIG. [Diagram 5] 5A to 5C are diagrams illustrating the operation of one configuration example of the mounting device according to the first embodiment. [Figure 6] 5A to 5C are diagrams illustrating details of the operation of one configuration example of the mounting device according to the first embodiment. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0011] Hereinafter, specific embodiments to which the present invention is applied will be described in detail with reference to the drawings. However, the present invention is not limited to the following embodiments. In addition, the following description and drawings are appropriately simplified for clarity of explanation.

[0012] <Embodiment 1> A first embodiment will be described with reference to Fig. 1 to Fig. 4. Fig. 1 is a partially cutaway cross-sectional view showing one configuration example of a mounting device according to the first embodiment. Fig. 2 is a plan view showing a main part of the configuration example of the mounting device shown in Fig. 1. Fig. 3 is a partially cutaway cross-sectional view showing a main part of the configuration example of the mounting device shown in Fig. 1. Fig. 4 is a side view showing a main part of the configuration example of the mounting device shown in Fig. 1.

[0013] Naturally, the right-handed XYZ coordinate system shown in Figure 1 and other drawings is for the convenience of explaining the positional relationship of the components. Usually, the positive direction of the Z axis is vertically upward, and the XY plane is a horizontal plane, which is common among the drawings.

[0014] 1, the mounting device 100 includes a protruding portion 10 and a holding portion 20. The mounting device 100 may further include a rotation drive portion 30.

[0015] As shown in FIGS. 1 and 2, the holding portion 20 has a hole 21 for holding the part PT. The shape of the hole 21 may be adapted to the part PT. The hole 21 penetrates the holding portion 20. The axis Z21 of the hole 21 extends substantially perpendicularly to the main surface of the holding portion 20. An example of the holding portion 20 shown in FIG. 2 is a disk-shaped body supported rotatably around the rotation axis Z20. In addition, in the example of the holding portion 20 shown in FIG. 2, 16 holes 21 are provided at equal intervals on a circumference C20 centered on the rotation axis Z20. The number of holes 21 arranged in the holding portion 20 is not particularly limited, and may be one or more. The multiple holes 21 may hold multiple parts PT one by one. The part PT is, for example, a grommet or a hole plug. The part PT may be made of an elastically deformable material, for example, a rubber material or a resin material.

[0016] The protruding portion 10 is disposed below (here, in the negative Z-axis direction) the holding portion 20. The protruding portion 10 includes a shaft 1, a bushing 2, a swinging portion 3, a connecting member 4, and a shaft driving portion 5.

[0017] The connecting member 4 connects the shaft 1 and the shaft driving portion 5. The connecting member 4 may have a female screw portion.

[0018] The shaft 1 extends from the connecting member 4 to the holding portion 20. The end of the shaft 1 on the holding portion 20 side has a shape capable of holding the part PT. The end of the shaft 1 on the connecting member 4 side may have a thread shape.

[0019] As shown in FIG. 3, the shaft 1 according to this embodiment includes a recess 1a and a vacuum generation path hole 1b.

[0020] The recess 1a is provided at the end of the shaft 1 on the holding part 20 side. The recess 1a fits the protrusion PTa of the part PT. The recess 1a has, for example, a substantially cylindrical recessed shape. The protrusion PTa has, for example, a substantially cylindrical protruding shape.

[0021] It is preferable that there is a gap between the recess 1a and the part PT. Specifically, it is preferable that the inner peripheral surface 1c of the recess 1a is separated from the outer peripheral surface PTc of the protruding portion PTa of the part PT. It is also preferable that the diameter Φ1a of the recess 1a is larger than the diameter ΦPTa of the protruding portion PTa of the part PT. With this configuration, when the shaft 1 holds the part PT, it is possible to prevent the part PT from getting caught on the shaft 1.

[0022] The vacuum generation path hole 1b opens at the bottom surface of the recess 1a. The vacuum generation path hole 1b extends from the bottom surface of the recess 1a toward the connecting member 4 side of the shaft 1 (here, in the negative direction of the Z axis) and communicates with a vacuum generator (not shown) via a flexible cable. The vacuum generator is constituted by, for example, an ejector, and receives a supply of compressed air from a compressor (not shown) to create a vacuum by the Venturi effect.

[0023] The diameter Φ1b of the vacuum generation path hole 1b may be set to a size that allows the part PT to be stably held. The diameter Φ1b may be, for example, 1.5 mm to 3.0 mm. In one embodiment, when the diameter Φ1b is 1.5 mm, the vacuum generation pressure at the vacuum generation path hole 1b is −50.5 kPa. In another embodiment, when the diameter Φ1b is 3.0 mm, the vacuum generation pressure at the vacuum generation path hole 1b is −81.0 kPa. The absolute value of the vacuum generation pressure at the vacuum generation path hole 1b when the diameter Φ1b is 3.0 mm is larger than that when the diameter Φ1b is 1.5 mm. When the diameter Φ1b is increased from 1.5 mm to 3.0 mm, the stability of holding the part PT may be improved.

[0024] 1 is a substantially cylindrical body. The inner peripheral surface of the bush 2 may have a thread shape that allows the fastening portion 3a of the oscillating portion 3 to be fastened to the end of the shaft 1 on the connecting member 4 side.

[0025] The oscillating portion 3 oscillates and supports the shaft 1 via the bush 2. Since the shaft 1 oscillates around the oscillating portion 3, the shaft 1, the bush 2, and the oscillating portion 3 function as a flexible link.

[0026] An example of the oscillating part 3 shown in FIG. 4 is a swivel joint, which includes a fastening part 3a, a flexible part 3b, and a fastening part 3c. The fastening part 3a, the flexible part 3b, and the fastening part 3c are connected in this order. The flexible part 3b may be made of a material having flexibility. Such a material is, for example, a rubber material. The outer peripheral surface of the fastening part 3a has a thread shape that can be fastened to the inner peripheral surface of the bush 2. The outer peripheral surface of the fastening part 3c has a thread shape that can be fastened to the connecting member 4. The female screw part of the connecting member 4 is fastened to the fastening part 3c, and the connecting member 4 and the oscillating part 3 are mechanically connected. The bush 2 is fastened to the fastening part 3a of the oscillating part 3 and the end of the shaft 1 on the connecting member 4 side, and the shaft 1 and the oscillating part 3 are mechanically connected via the bush 2. As a result, the shaft 1 is mechanically connected to the connecting member 4 via the bush 2 and the oscillating part 3.

[0027] 1, the shaft driving part 5 is disposed below the connecting member 4. The shaft driving part 5 includes a main body 5a, sliding bearings 5b, 5c, 5d, and 5e, and rods 5f and 5g.

[0028] The main body 5a is provided with sliding bearings 5b, 5c, 5d, and 5e. Specifically, the sliding bearings 5b and 5c and the sliding bearings 5d and 5e are arranged in parallel toward the connecting member 4. The rod 5f is inserted into the sliding bearings 5b and 5c and is mechanically connected to the connecting member 4. The rod 5g is inserted into the sliding bearings 5d and 5e and is mechanically connected to the connecting member 4. The rods 5f and 5g are arranged in parallel toward the connecting member 4. The rods 5f and 5g are held so as to be movable in the vertical direction.

[0029] The shaft driving unit 5 includes a driving source (not shown). The driving source applies a driving force to the rods 5f and 5g, and moves the rods 5f and 5g in the vertical direction. The vertical movement of the rods 5f and 5g moves the shaft 1 in the vertical direction via the connecting member 4, the swinging unit 3, and the bush 2. The driving source may be configured, for example, using an air cylinder, and applies a driving force to the rods 5f and 5g by expanding and contracting with compressed air supplied from a compressor (not shown). The pressure of the compressed air in the air cylinder may be appropriately set within a predetermined range, for example, 0.1 MPa or more and 0.3 MPa or less, so that the part PT is stably fitted into the opening of the mounting body. If the pressure of the compressed air in the air cylinder is equal to or less than the upper limit of the predetermined range, the part can be prevented from passing through the opening of the mounting body. If the pressure of the compressed air in the air cylinder is equal to or more than the lower limit of the predetermined range, the part can be prevented from not entering the opening of the mounting body at all. The driving source may be configured, for example, using an electric linear actuator.

[0030] The protruding portion 10 protrudes the shaft 1 into the hole 21. Then, the shaft 1 presses against the part PT housed in the hole 21, and pushes the part PT out of the hole 21. The shaft 1 continues to push up the part PT, fitting the part PT into the opening of the attachment target.

[0031] The rotation drive unit 30 rotates the holding unit 20 around the rotation axis Z20 in response to the protrusion of the protruding portion 10. Specifically, the protruding portion 10 protrudes the shaft 1 into the hole 21, and the part PT fits into the opening of the mounting body. Then, the rotation drive unit 30 rotates the holding unit 20 around the rotation axis Z20 so that the protruding portion 10 can protrude the shaft 1 into the hole 21 adjacent to the protruding hole 21 on the circumference C20. The protruding portion 10 protrudes the shaft 1 into the adjacent hole 21, and the part PT held in the adjacent hole 21 fits into the opening of the mounting body. By repeating such interlocking between the rotation drive unit 30 and the protruding portion 10, it is possible to smoothly and continuously mount a plurality of parts PT into the opening of the mounting body.

[0032] <Operation> 5 and 6, a description will be given of the operation of the mounting device 100 for mounting the part PT to the opening Ma of the mounting target body M. Note that hatching has been omitted in Fig. 6 for ease of viewing.

[0033] As shown in FIG. 5, the protruding portion 10 protrudes the shaft 1 into the hole 21 (step ST1). The shaft 1 presses against the part PT housed in the hole 21, pushing the part PT out of the hole 21. The shaft 1 then pushes the part PT up and moves it to the opening Ma of the object to be attached M. As shown in FIG. 6, the positions of the part PT and the opening Ma of the object to be attached M are misaligned. Specifically, the axis Z1 of the shaft 1 is spaced a distance D1 from the axis ZMa of the opening Ma of the object to be attached M. The axis Z1 of the shaft 1 and the axis ZMa of the opening Ma of the object to be attached M extend approximately parallel to each other.

[0034] Next, the shaft 1 approaches the opening Ma of the mounting target body M, and the part PT comes into contact with the opening Ma of the mounting target body M (step ST2). Specifically, an end of the part PT comes into contact with the opening Ma of the mounting target body M.

[0035] Next, the shaft 1 protrudes further, and the part PT presses against the opening Ma (step ST3). Then, the part PT and the shaft 1 receive a reaction force from the opening Ma. The end of the part PT presses against the opening Ma, and the swinging part 3 shown in FIG. 5 supports the shaft 1 so that it can swing. As a result, the shaft 1 swings and tilts toward the part of the opening Ma that is in contact with the end of the part PT. Alternatively, the shaft 1 tilts so as to move away from the axis ZMa of the opening Ma. The angle α1 formed by the intersection of the axis Z1 of the shaft 1 and the axis ZMa of the opening Ma in this step ST2 has a predetermined size.

[0036] The shaft 1 continues to swing, and the part PT tilts (step ST4). Specifically, the shaft 1 swings and tilts back toward the axis ZMa of the opening Ma, and the part PT hits the opening Ma and tilts. The angle α2 formed by the intersection of the axis Z1 of the shaft 1 and the axis ZMa of the opening Ma in this step ST3 is smaller than the angle α1 in the previous step ST2.

[0037] Next, the upper part of the part PT enters inside the opening Ma (step ST5). The shaft 1 continues to tilt so as to return to the axis ZMa side of the opening Ma. The angle α3 formed by the intersection of the axis Z1 of the shaft 1 and the axis ZMa of the opening Ma in this step ST4 is smaller than the angle α2 in the previous step ST3.

[0038] Finally, the shaft 1 protrudes further and the part PT is fitted into the opening Ma (step ST5).

[0039] As described above, the mounting device 100 can mount the part PT in the opening Ma of the mounting target M. Even if the part PT is misaligned with the opening Ma of the mounting target M, the shaft 1 swings. This causes the part PT to tilt, making it easier for it to enter the opening Ma. This allows the part PT to be properly mounted in the opening Ma of the mounting target M.

[0040] The shaft driving unit 5 also includes sliding bearings 5b, 5c, 5d, and 5e, and rods 5f and 5g. The rods 5f and 5g are arranged in parallel so as to be movable in the direction in which the shaft 1 is protruding. The sliding bearings 5b, 5c, 5d, and 5e guide the rods 5f and 5g, respectively. This makes it possible to suppress the inclination of the shaft 1 and improve the linearity of the movement of the shaft 1.

[0041] Furthermore, when the driving source is configured using an air cylinder, the pressure of the compressed air when the shaft 1 reaches the opening Ma changes depending on the position or distance D1 at which the axis Z1 of the shaft 1 is separated from the axis ZMa of the opening Ma of the mounting object M. Therefore, it is advisable to appropriately change the pressure of the compressed air supplied into the air cylinder depending on the pressure of the compressed air when the shaft 1 reaches the opening Ma. This change allows the part PT to be stably fitted into the opening Ma of the mounting object M.

[0042] The present invention is not limited to the above-mentioned embodiment, and can be modified as appropriate without departing from the spirit of the present invention. The present invention may be implemented by appropriately combining the above-mentioned embodiment and examples thereof. The shaft driving unit 5 according to the above-mentioned embodiment includes the rods 5f and 5g and the sliding bearings 5b, 5c, 5d, and 5e, but may include one or more rods and sliding shafts. The shaft driving unit 5 may include a ball bush instead of a sliding bearing. [Explanation of symbols]

[0043] 100 Mounting device 10. Protruding part 1 Shaft 1a Recess 1b Vacuum generation path hole 2. Bush 3 Swinging part 3a, 3c Fastening section 3b Flexible part 4 Connecting members 5 Shaft drive 5a Main unit 5b, 5c, 5d, 5e Plain bearings 5f, 5g rod 20 Holding part 21 holes 30 Rotation drive unit PT Parts PTa convex part PTc outer surface M Mounting object Ma opening

Claims

1. An attachment device for attaching a component to an opening of an attachment target, comprising: a holding portion having a hole for holding a component; a protruding portion for protruding a shaft into the hole and fitting the held component into an opening of a mounting body, The protruding portion includes a swinging portion that swingably supports the shaft. Mounting device.

2. Further comprising a rotary drive unit, The holding portion is supported rotatably around a rotation axis, The plurality of holes are provided at equal intervals on a circumference centered on the rotation axis in the holding portion, The protruding portion protrudes the shaft into the hole along an axis parallel to the rotation axis, and the held part is fitted into an opening of a mounting body, the rotation drive unit drives the holding unit to rotate about the rotation axis so that the protruding unit can protrude the shaft into a hole adjacent to the hole through which the protruding unit is protruded on the circumference; The mounting device of claim 1 .

3. The protruding portion includes a plurality of rods arranged in parallel and movable in a direction in which the shaft is protruded, and a plurality of sliding bearings that guide the plurality of rods, respectively.

3. A mounting device according to claim 1 or 2.

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