Workpiece holding device, hole filling device, and workpiece holding method
The work holding device addresses the challenge of incomplete filling by vibrating and stabilizing the workpiece using a vibration-damping mechanism, ensuring effective material insertion into holes.
Patent Information
- Authority / Receiving Office
- JP · JP
- Patent Type
- Applications
- Current Assignee / Owner
- Filing Date
- 2024-09-06
- Publication Date
- 2026-03-18
AI Technical Summary
Existing filling devices struggle to reliably fill materials into holes of a workpiece, particularly when the workpiece is vibrated or tilted, leading to incomplete filling and potential gaps.
A work holding device with a housing, work attachment portion, vibration portion, and vibration isolation portion that vibrates the workpiece to ensure filling material is properly inserted into holes, using a vibration-damping mechanism to absorb vibrations and maintain stability.
The device ensures reliable filling of materials into workpiece holes by vibrating the workpiece while absorbing vibrations, preventing incomplete filling and ensuring uniform distribution of forces, thus enhancing filling efficiency.
Smart Images
Figure 2026049166000001_ABST
Abstract
Description
Technical Field
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[0001] The present disclosure relates to a work holding device, a hole filling device, and a work holding method.
Background Art
[0002] Conventionally, there has been a filling device for filling a filling material into a hole formed in a substrate.
Prior Art Documents
Patent Documents
[0003]
Patent Document 1
Summary of the Invention
Problems to be Solved by the Invention
[0004] In an embodiment of the present disclosure, it is desired to reliably fill a filling material into a hole of a work.
Means for Solving the Problems
[0005] The work holding device of the present disclosure includes a housing, a work attachment portion that fixes an end portion of a work and attaches the work, a vibration portion that applies vibration to the work attachment portion, and a vibration isolation portion that is fixed to the housing and the work attachment portion and absorbs the vibration of the work attachment portion by the vibration portion. and is provided with.
Effects of the Invention
[0006] According to the present disclosure, since the work is vibrated, the filling material can be reliably filled into the hole of the work.
Brief Description of the Drawings
[0008] Embodiment 1. ●●Figure 1: Workpiece holding device 100 and hole filling device 200●● Figure 1 is a perspective view of the workpiece holding device 100 and the hole filling device 200. In the diagram, X represents the left-right direction. In the figure, Y indicates the front-rear direction. In the figure, Z indicates the up-down direction (vertical direction). The X direction, Y direction, and Z direction are orthogonal. The XY plane is a horizontal plane. Z is the vertical axis.
[0009] <<<Configuration of the Hole Filling Device 200>>> The hole filling device 200 includes a pedestal 111, a main column 112, a rotation mechanism 113, a work holding device 100, a head 210, a movement mechanism 220, and a control unit 230. The pedestal 111 is fixed to the floor surface. The main column 112 is erected from both sides of the pedestal 111. The rotation mechanism 113 is fixed to the upper part of the main column 112 and the center of the side frame 114. The rotation mechanism 113 can rotate the side frame 114 with respect to the main column 112. The rotation mechanism 113 can fix the side frame 114 at an arbitrary angle with respect to the main column 112. The rotation mechanism 113 rotatably attaches the work holding device 100 to the pedestal 111 and the main column 112.
[0010] <Head 210> The head 210 fills the holes of the work 900 fixed to the work holding device 100 with a filling material (hereinafter referred to as paste). Specific examples of the paste are paste materials including conductive materials, resin materials, insulating materials, sealing materials, deterioration prevention agents, adhesives, solder materials, or combinations thereof. The head 210 exists on both sides of the work 900. The head 210 adsorbs to the work 900, creates a vacuum in the holes of the work 900, and fills them with paste.
[0011] <Movement Mechanism 220> The movement mechanism 220 moves the head 210 along the work 900. The movement mechanism 220 controls the filling of the paste by the head 210.
[0012] <Control Unit 230> The control unit 230 controls the operation of the hole-filling device 200. The control unit 230 controls the operation of the workpiece holding device 100. The control unit 230 includes a central processing unit and a program storage unit. The control unit 230 executes a program on the central processing unit and controls the operation of each part via signal lines (not shown).
[0013] <Work 900> Workpiece 900 has a thin, rectangular plate shape. Specific examples of workpiece 900 include steel plates, laminates, substrates, and wafers. The workpiece 900 has a through hole 901. The workpiece 900 has a bottomed hole 902 on its surface, back surface, or both sides. The workpiece 900 only needs to have at least one of a through hole 901 and a bottomed hole 902. Hereinafter, the through hole 901 or the bottomed hole 902 will be referred to as the hole. The central axis direction of the hole may be perpendicular to the surface of the workpiece 900, or it may be inclined with respect to the surface. The diameter of the hole may be constant, or it may change along the way. The shape of the hole may be a cylinder, cone, prism, pyramid, or any other shape. The hole arrangement can be in a matrix, evenly spaced, random, or any other pattern.
[0014] <<<Configuration of workpiece holding device 100>>> The workpiece holding device 100 holds the workpiece 900. The workpiece holding device 100 mounts the workpiece 900 on a vertical surface. The workpiece holding device 100 holds the workpiece 900 in a suspended state. The workpiece holding device 100 includes a housing 110, a workpiece mounting section 120, a vibrating section 130, It has a vibration-damping section 140. A pair of vibration-damping units 140 are fixed to the housing 110. A pair of vibration damping units 140 are fixed to both the left and right sides of the workpiece mounting section 120. A pair of vibration-damping units 130 are fixed to both the left and right sides of a pair of vibration-damping units 140. The workpiece mounting section 120 is suspended from the housing 110 by a pair of vibration damping sections 140 on both the left and right sides, and is positioned in a manner that allows it to vibrate vertically.
[0015] <Enclosure 110> The housing 110 has two side frames 114, a lower frame 115, and an upper frame 116. The two side frames 114, the bottom frame 115, and the top frame 116 form a ring-shaped rectangular frame. All components located inside the housing 110 rotate together with the housing 110 via the rotation mechanism 113.
[0016] <<Workpiece mounting section 120>> The workpiece mounting portion 120 is a metal component shaped like a rectangular prism. The workpiece mounting section 120 has rigidity that prevents it from bending even when vibrating. The workpiece mounting section 120 secures the workpiece 900 only by fixing its end portion, thereby mounting the workpiece 900. The workpiece mounting section 120 secures the workpiece 900 only by fixing its upper edge 910. The workpiece mounting section 120 mounts the workpiece 900 so that the surface of the workpiece 900 is perpendicular to the workpiece. The workpiece mounting section 120 has a plurality of clamps 122 arranged at equal intervals in the left-right direction.
[0017] <Clamp 122> The clamp 122 has an air cylinder that clamps and secures the upper end of the workpiece 900. The clamp 122 secures the end of the workpiece 900 at the top edge 910 by the pressure of the air cylinder. It is preferable that the clamp 122 attaches the workpiece 900 to the workpiece mounting portion 120 directly below the center in the front-to-back direction.
[0018] <<Vibrating section 130>> The vibrating section 130 is positioned at one end and the other end of the workpiece mounting section 120 in the left-right direction. The vibrating unit 130 generates a standing wave 124 only in the workpiece mounting section 120. The vibrating unit 130 causes the workpiece mounting unit 120 to vibrate in a standing wave. The vibrating unit 130 vibrates the workpiece 900 attached to the workpiece mounting unit 120 up and down.
[0019] <<Vibration isolation section 140>> The vibration damping section 140 is positioned at one end and the other end of the workpiece mounting section 120 in the left-right direction. The vibration-damping section 140 is fixed to the housing 110 and the workpiece mounting section 120. The vibration isolation section 140 absorbs vibrations of the workpiece mounting section 120 caused by the vibration section 130. The vibration isolation section 140 includes an absorption section 150, a lower fixing section 160, and an upper fixing section 170.
[0020] <Absorbent section 150> The absorption section 150 is an elastic body that absorbs all vibrations. The absorbent part 150 is fixed at the lower part to the lower fixing part 160. The absorbent section 150 is fixed at the upper part to the upper fixing section 170. The absorption section 150 prevents vibrations from the workpiece mounting section 120 from being transmitted to the housing 110 (upper frame 116).
[0021] <Lower fixing part 160> The lower fixing part 160 is fixed to the housing 110. The lower fixing part 160 is a plate that is mounted parallel and horizontally to the upper frame 116. The lower fixing part 160 is a plate suspended from the upper frame 116 by a suspension plate 117. The lower fixing part 160 secures the support part 190.
[0022] <Top fixed part 170> The upper fixing portion 170 is fixed to the workpiece mounting portion 120 via the fixing plate 180. The upper fixing part 170 is a plate that is mounted parallel and horizontally to the lower fixing part 160. The upper fixing part 170 is fixed to the upper part of the absorption part 150. The upper fixing part 170 fixes the vibrating part 130 to the left and right outer sides. The upper fixing section 170 has fixing plates 180 positioned on the left and right inner sides.
[0023] <Fixed plate 180> The fixing plate 180 is a plate that fixes the left and right sides of the workpiece mounting section 120. The fixing plate 180 is positioned perpendicular to the upper fixing portion 170. The fixing plate 180 is positioned on the side of the absorption section 150, with a gap between it and the absorption section 150. The upper surface of the fixing plate 180 is connected to the lower surface of the upper fixing part 170.
[0024] <Support part 190> The support portion 190 supports the lower edge 920 of the workpiece 900. The support portion 190 is positioned at one end and the other end of the lower edge 920 of the workpiece 900 in the left-right direction. The support portion 190 is fixed to the lower frame 115 at its lower end. When the workpiece 900 is attached to the clamp 122, the upper part of the support portion 190 is detachably pressed against the lower edge 920 of the workpiece 900. The support portion 190 is made of the same elastic material as the absorption portion 150 and has an elastic material that absorbs vibrations. The support section 190 absorbs vibrations of the workpiece 900 caused by the vibration section 130. The support portion 190 prevents vertical vibrations of the workpiece 900 from being transmitted to the housing 110 (lower frame 115). The support portion 190 prevents the lower edge 920 of the workpiece 900 from curving in the front-to-back direction.
[0025] ●●Figure 2: Vibration section 130 and vibration isolation section 140●● Figure 2 is a magnified perspective view of the vibrating section 130 and the vibration-damping section 140. (a) is a front view, (b) is a side view, and (c) is a top view.
[0026] <<Vibrating section 130>> The vibrating unit 130 includes a vibrator 132 and a distributor 134.
[0027] <Vibrator 132> The vibrator 132 is fixed to the upper fixing part 170 by the distributor 134. The vibrator 132 vibrates at audible frequencies (frequencies between 10 Hz and 800 Hz). The vibrator 132 does not vibrate ultrasonically. The vibrator 132 generates vibrations in a direction parallel to the surface of the workpiece 900. The vibrator 132 vibrates up and down to vibrate the vertically mounted workpiece 900 in the vertical direction.
[0028] <Distributor 134> The distributor 134 is fixed to the upper fixing part 170, with the vibrator 132 mounted on top. The distributor 134 is a vibration propagation plate that amplifies and transmits vibrations over a wide area. The distributor 134 transmits vibrations to the upper fixing part 170 that cause the workpiece mounting part 120 to vibrate in a standing wave manner. The distributor 134 positions the vibrator 132 at a location away from the upper fixing part 170. The distributor 134 positions the vibrator 132 outside the upper fixing part 170. The distributor 134 is fixed to the upper fixing part 170 with two screws at the point that serves as the pivot point 136 for vibration. The distributor 134 vibrates up and down as if flapping its wings outside of the pivot point 136, with the pivot point 136 as the pivot point for flapping.
[0029] <<Vibration isolation section 140>> The vibration isolation unit 140 has two absorption units 150 in the front-rear direction.
[0030] <<Absorbent section 150>> An upper fixing part 170 is fixed on top of the two absorption parts 150. A lower fixing part 160 is fixed below the two absorption parts 150. The two absorption units 150 prevent the lower fixing unit 160 from vibrating even when the upper fixing unit 170 vibrates due to the vibration unit 130.
[0031] <<Vibration-damping rubber 152>> A specific example of the absorption part 150 is the vibration-damping rubber 152. The elastic modulus of all four vibration-damping rubbers 152 is the same. The vibration-damping rubber 152 has a dome shape or a bowl shape. There is a circular metal plate on top of the vibration-damping rubber 152. The circular metal plate has a single screw hole in the center. The lower part of the vibration-damping rubber 152 has a diamond-shaped metal plate with a longitudinal and a transverse direction. The diamond-shaped metal plate has two screw holes at its longitudinal end. The vibration-damping rubber 152 is fixed to the upper fixing part 170 with a screw at one point in the upper center. The two lower ends of the vibration-damping rubber 152 are fixed to the lower fixing part 160 with screws. The two vibration-damping rubbers 152 are fixed so that their short sides are parallel and their long sides are straight.
[0032] <<Anteroposterior center plane C1>> The vertical plane passing between the two absorption sections 150 is defined as the front-to-back center plane C1. The workpiece mounting section 120, the vibration section 130, and the vibration isolation section 140 are symmetrical in the front-to-back direction with respect to the front-to-back central plane C1. The central vertical cross-section of the vibrating section 130 in the front-rear direction is the same plane as the front-rear central plane C1. The central vertical cross-section of the fixing plate 180 in the front-rear direction is the same plane as the front-rear central plane C1. The central vertical cross-section of the workpiece mounting portion 120 in the front-rear direction is the same plane as the front-rear center plane C1. Although not shown in the diagram, it is desirable that the central vertical cross-section of the workpiece 900 in the front-rear direction be the same plane as the front-rear center plane C1. The vibration isolation section 140 is fixed such that the weight of the workpiece mounting section 120 and the workpiece 900 is applied to the front-to-back center (front-to-back center plane C1) of the vibration isolation section 140. The workpiece mounting section 120 is fixed to the vibration damping section 140 via a fixing plate 180 such that the weight of the workpiece mounting section 120 and the workpiece 900 is applied downwards to the center (front-rear central plane C1) of the vibration damping section 140.
[0033] ●●Figure 3: Rotation mechanism 113●● Figure 3 is an explanatory diagram of the rotation mechanism 113. Figure 3 is a schematic side view of the hole-filling device 200. The rotating mechanism 113 can tilt the workpiece holding device 100. (a) is a vertical view showing the state in which the rotating mechanism 113 is not rotating the workpiece holding device 100. (b) is a diagram showing the tilted state after the rotating mechanism 113 has rotated the workpiece holding device 100 by 45 degrees. (c) is a horizontal view showing the workpiece holding device 100 rotated by 90 degrees by the rotating mechanism 113. In either state, the vibration direction of the vibration isolation unit 140 is the same as that of the surface of the workpiece 900. In either state, the direction of movement of the head 210 is the same as the surface of the workpiece 900. In either state, the absorption section 150 and the support section 190 absorb vibrations. The support portion 190 prevents the lower edge 920 of the workpiece 900 from sagging downwards in both the inclined and horizontal states, thereby maintaining the flatness of the workpiece 900.
[0034] The following is an example of the operation of the rotating mechanism 113. 1. If the central axis of the hole is inclined with respect to the surface of the workpiece 900, tilt the workpiece 900 so that the central axis of the hole is vertical. 2. If the shape of the through hole 901 is a pyramidal or conical shape, position the workpiece 900 horizontally so that the larger opening is facing upwards. 3. In the case of a closed hole 902, position the workpiece 900 horizontally so that the opening faces upwards.
[0035] ●●Figure 4: Workpiece holding method and hole filling method●● Figure 4 is a flowchart illustrating the workpiece holding method and the hole-filling method. As a prerequisite, the head 210 is assumed to be retracted downwards. The following operations are performed according to instructions from the control unit 230. The following explanation will primarily focus on the case of a vertical orientation.
[0036] <Workpiece mounting step S11> The workpiece 900 is mounted vertically to the workpiece mounting section 120.
[0037] <Workpiece angle setting step S12> The rotating mechanism 113 rotates the workpiece holding device 100 to set the tilt angle of the workpiece 900. If you want to maintain a vertical position, rotation is not necessary.
[0038] <Head movement step S13> The moving mechanism 220 raises the head 210, which is retracted downwards. The moving mechanism 220 stops the head 210 at the hole-filling start position and brings the head 210 into contact with the workpiece 900.
[0039] <Vibration start step S14> The vibrating unit 130 starts vibrating, causing the workpiece mounting unit 120 to vibrate in a standing wave. The left and right vibrators 132 are fixed separately to the left and right outer sides of the left and right upper fixing parts 170, and they provide the upper fixing parts 170 with a sinusoidal traveling wave. The left and right vibrators 132 simultaneously generate traveling waves with the same amplitude, wavelength, and frequency. When traveling waves are generated simultaneously in opposite directions with the same amplitude, wavelength, and frequency, the traveling waves from the left and right overlap at the workpiece mounting section 120, generating a standing wave 124. A standing wave 124 is a wave whose position does not change over time. The workpiece mounting section 120 vibrates only up and down at the same vibration frequency as the vibrator 132 due to the standing wave 124. The workpiece 900, fixed to the workpiece mounting section 120, also vibrates only vertically due to the standing wave 124. The vertical vibration of the vibration section 130 generated outside the upper fixing section 170 causes the fixing plates 180 at both ends of the workpiece mounting section 120 to vibrate vertically, and in turn causes the workpiece mounting section 120 to vibrate vertically.
[0040] <Standing wave vibration> Nodes in a standing wave (locations where the amplitude of the standing wave is zero) occur every half wavelength. The distance between the two pivot points 136 on the left and right should be less than half the wavelength of the standing wave. It is possible to ensure that there are no nodes of the standing wave at any point in the left-right direction of the workpiece mounting section 120, and the workpiece mounting section 120 vibrates only in the up-and-down direction.
[0041] <Fill in the blanks step S15> The moving mechanism 220 moves the head 210, which is in the hole-filling start position, downwards. The head 210 reduces the pressure in the holes (through hole 901 and bottomed hole 902) and fills the through hole 901 and bottomed hole 902 with paste.
[0042] The following reasons ensure that the paste is properly filled: 1. The hole is made into a vacuum, so the paste is drawn into the hole. 2. Because the workpiece 900 is being vibrated, the paste fills the holes completely without any gaps.
[0043] The head 210 descends while maintaining close contact with the workpiece 900. Therefore, a force is applied to the clamp 122 of the workpiece mounting section 120, which causes the head 210 to move downward while in contact with the surface of the workpiece 900, as a force in the direction of gravity. Once the hole filling is complete, the moving mechanism 220 retracts the head 210 downwards.
[0044] <Vibration stopping step S16> The vibrating unit 130 stops vibrating once the hole filling is complete.
[0045] <Workpiece angle reset step S17> The rotating mechanism 113 rotates the workpiece mounting section 120, returning the workpiece 900 to a vertical position. If the object remains vertical, rotation is unnecessary.
[0046] <Workpiece removal step S18> Remove the workpiece 900 from the workpiece mounting section 120.
[0047] <<Features of the workpiece holding method>> In this embodiment of the workpiece holding method, the vibrating unit 130 applies vibration to the workpiece mounting unit 120 along the surface of the workpiece 900. The vibration damping section 140 is fixed to the housing 110 and the workpiece mounting section 120, and the vibration damping section 140 absorbs vibrations of the workpiece mounting section 120 caused by the vibration section 130. The workpiece holding method in this embodiment prevents oblique loads from being applied to the vibration damping unit 140, and ensures that loads are applied only in the vertical direction to the vibration damping unit 140.
[0048] <Vertical vibration> The vibrating unit 130 generates standing wave vibrations in the workpiece mounting unit 120. The standing wave vibration of the workpiece mounting section 120 causes the workpiece 900 to vibrate only in the vertical direction. The workpiece mounting section 120 vibrates only in the vertical direction while maintaining its horizontal position. The workpiece 900 vibrates only in the vertical direction while maintaining the horizontal position of its upper edge 910 and lower edge 920. The vibration isolation unit 140 only needs to absorb vibrations in the vertical direction.
[0049] <Load in the lateral direction> Since the workpiece mounting section 120 is suspended between the left and right vibration isolation sections 140, the following loads (stresses) are applied to the left and right vibration isolation sections 140. 1. The weight of the workpiece mounting section 120. 2. The weight of the workpiece 900. 3. The force generated when the head 210 pulls the workpiece 900 downwards during hole filling. These loads may generate stresses in directions other than vertical on the vibration-damping section 140, but these stresses can be ignored for the following reasons. 1. The workpiece mounting section 120 and the workpiece 900 vibrate only vertically. 2. When filling holes, head 210 moves only downwards. 3. The workpiece mounting section 120 is provided with sufficient rigidity. 4. The fixing plate 180 and the upper fixing part 170 are integrally molded products and are resistant to deformation. 5. The workpiece mounting section 120 and the fixing plate 180 are firmly fixed together with four screws. Therefore, the load is evenly distributed to the left and right vibration-damping sections 140, and forces are applied to the left and right vibration-damping sections 140 only in the vertical direction.
[0050] <Load in the front-to-back direction> The structure of the vibration-damping section 140, the fixing plate, the fixing plate 180, the workpiece mounting section 120, the workpiece 900, and the head 210 are arranged symmetrically with respect to the front-to-rear center plane C1 of the vibration-damping section 140. The force generated when the head 210 pulls the workpiece 900 downward during hole filling is also generated on both sides of the front-to-rear center plane C1, with the workpiece 900 positioned on the front-to-rear center plane C1. Therefore, the load is evenly distributed on both sides of the front-to-back center of the vibration-damping section 140, and only vertical force is applied to the front-to-back center of the vibration-damping section 140.
[0051] ●●Effects of Embodiment 1●● According to Embodiment 1, since the workpiece 900 is vibrated, the filling material can be reliably filled into the holes of the workpiece 900. According to Embodiment 1, the workpiece holding device 100 can be tilted, so a suitable tilt angle can be selected depending on the shape or structure of the through hole 901 or the bottomed hole 902. According to Embodiment 1, the weight (load) of the workpiece mounting section 120 and the workpiece 900 is applied to the center (front-rear central plane C1) of the vibration damping section 140, so that uneven stress is not applied to the vibration damping section 140.
[0052] ● Modified example of the vibrating section 130: The vibrating part 130 may be fixed to the fixing plate 180. The vibrating section 130 may be fixed to the left and right outer sides of the workpiece mounting section 120. There may be multiple vibrating units 130 on both the left and right sides.
[0053] ● Modified example of the workpiece mounting section 120: The upper fixing part 170 and the fixing plate 180 may be eliminated, and the lower surface of the workpiece mounting part 120 may be directly fixed onto the absorption part 150. In this case, the vibration part 130 is fixed to the workpiece mounting part 120.
[0054] ● Modified versions of clamp 122: One or more clamps 122 are sufficient. The clamp 122 may also be used to secure the workpiece 900 in a manner other than the cylinder. The clamp 122 may also be used to secure the upper side edge 930 of the workpiece 900, rather than the top edge 910. The placement of the clamps 122 should match the size and shape of the workpiece 900.
[0055] ● Modified version of Workpiece 900: The shape of workpiece 900 does not have to be rectangular; it may be a triangle, hexagon, or other polygon. The shape of the workpiece 900 is not limited to anything that allows it to be fixed by the clamp 122; it may be circular.
[0056] ● Modified versions of the suspension plate 117: The suspension plate 117 may be fixed to the side frame 114 instead of the upper frame 116. The suspension plate 117 may be fixed to both the upper frame 116 and the side frame 114.
[0057] ● Modified version of the fixing plate 180: The fixing plate 180 may be manufactured separately from the workpiece mounting portion 120. The fixing plate 180 may be omitted if the workpiece mounting portion 120 can also be used as the upper fixing portion 170.
[0058] ● Modified version of head 210: The head 210 may reduce the pressure on only one side of the workpiece 900. The head 210 may be filled from only one side of the workpiece 900. Head 210 may fill the hole by moving from bottom to top, provided the workpiece 900 is rigid. Head movement step S13> The moving mechanism 220 raises the head 210, which is retracted downwards. The moving mechanism 220 stops the head 210 at the hole-filling start position and brings the head 210 into contact with the workpiece 900.
[0059] ● Variations of vibration onset: The vibration initiation step S14 may occur before the head movement step S13. The vibration initiation step S14 can be performed at any time before the hole-filling step S15.
[0060] ● Variations of workpiece angle setting: The workpiece angle setting step S12 may be performed in the middle of the hole filling step S15. For example, the first half may involve filling holes in a vertical position, interrupting the filling process to allow rotation by the rotation mechanism 113, and then filling holes in a horizontal position in the second half. The rotation by the rotation mechanism 113 may be performed simultaneously while the hole-filling work is being carried out. While filling the holes, the rotation mechanism 113 may repeatedly perform forward and reverse rotation.
[0061] ● Modified examples of the hole-filling device 200: The print head 210 may print instead of filling the holes, and the hole-filling device 200 may be a printing device. The head 210 may perform machining instead of filling the holes, and the hole-filling device 200 may be a machining device.
[0062] Embodiment 2. The differences from Embodiment 1 will be explained below.
[0063] ●●Figure 5: Workpiece holding device 100 and hole filling device 200●● Figure 5 is a perspective view of the workpiece holding device 100 and the hole filling device 200. The difference between Figure 5 and Figure 1 lies in the configuration of the vibration isolation unit 140.
[0064] The vibration isolation unit 140 is A vibration-absorbing section 150, An upper fixing part 170 is fixed to the housing 110 and to the upper part of the absorption part 150, A lower fixing part 160 is fixed to the workpiece mounting part 120 and to the lower part of the absorption part 150. It has.
[0065] The upper fixing part 170 is fixed to the housing 110 via the suspension plate 117. The lower fixing portion 160 is fixed to the workpiece mounting portion 120 via the fixing plate 180. The vibrating part 130 is fixed to the lower fixing part 160.
[0066] ●●Figure 6: Vibration section 130 and vibration isolation section 140●● Figure 6 is a magnified perspective view of the vibrating section 130 and the vibration-damping section 140. (a) is a front view, (b) is a side view, and (c) is a top view.
[0067] The two absorption units 150 prevent the upper fixing unit 170 from vibrating even when the lower fixing unit 160 vibrates due to the vibration unit 130. The two upper ends of the vibration-damping rubber 152 are fixed to the upper fixing part 170 with screws. The vibration-damping rubber 152 is fixed to the lower fixing part 160 with a screw at one point in the lower center. The two vibration-damping rubbers 152 are fixed so that their longitudinal directions are parallel and their transverse directions are straight. The vibration isolation section 140 is fixed such that the weight of the workpiece mounting section 120 and the workpiece 900 is applied to the front-to-back center (front-to-back center plane C1) of the vibration isolation section 140.
[0068] ●●Effects of Embodiment 2●● According to Embodiment 2, since the fixing plate 180 is not positioned on the side of the absorption section 150, the fixing plate 180 can be positioned closer to the center of the vibration-damping rubber 152 than in the configuration of Embodiment 1.
[0069] According to Embodiment 2, since the vibration-damping rubber 152 is fixed so that its longitudinal direction is parallel, the length of the vibration-damping section 140 in the front-to-back direction can be made shorter than in the configuration of Embodiment 1.
[0070] ● Modified example of vibration-damping rubber 152 The two vibration-damping rubbers 152 may be fixed so that their short sides are parallel and their long sides are straight.
[0071] ● Modified example of the workpiece mounting section 120: The lower fixing portion 160 and the fixing plate 180 may be eliminated, and the upper surface of the workpiece mounting portion 120 may be directly fixed below the absorption portion 150. In this case, the vibration portion 130 is fixed to the workpiece mounting portion 120.
[0072] Embodiment 3. The differences from Embodiments 1 and 2 will be explained below.
[0073] ●●Figure 7: Workpiece holding device 100 and hole filling device 200●● Figure 7 is a perspective view of the workpiece holding device 100 and the hole filling device 200. The difference between Figure 7 and Figure 1 lies in the configuration of the vibration isolation unit 140. The vibration damping section 140 is fixed to the workpiece mounting section 120 so that the weight of the workpiece mounting section 120 is applied to the front-to-back center and the left-to-right center of the vibration damping section 140. The vibration damping section 140 is configured to evenly distribute the weight of the workpiece mounting section 120 onto the absorption section 150 (vibration damping rubber 152).
[0074] <Top fixed part 170> The upper fixing part 170 is fixed to the upper part of the absorption part 150. The upper fixing portion 170 has an annular ring portion. The upper fixing part 170 has a box shape with openings at the front and back. The upper fixing section 170 includes an upper plate 171, two connecting plates 172, and a lower plate 173.
[0075] <Upper plate 171> The upper plate 171 is a rectangular plate. The upper plate 171 is fixed to the upper part of the absorption section 150.
[0076] <Connecting plate 172> The two connecting plates 172 are identical rectangular plates. The two connecting plates 172 are fixed to the left and right ends of the upper plate 171, with the absorption section 150 in the center. The two connecting plates 172 are arranged in parallel.
[0077] <Bottom plate 173> The lower plate 173 is a rectangular plate. The lower plate 173 is fixed to the lower ends of the two connecting plates 172. The lower plate 173 is positioned parallel to the upper plate 171. The lower plate 173 secures the fixing plate 180 to the lower center on both sides. The lower plate 173 is fixed to the workpiece mounting section 120 via the fixing plate 180.
[0078] ●●Figure 8: Vibration section 130 and vibration isolation section 140●● Figure 8 is a magnified perspective view of the vibrating section 130 and the vibration-damping section 140. (a) is a front view, (b) is a side view, and (c) is a top view.
[0079] The upper fixing portion 170 penetrates the lower fixing portion 160 in the front-to-back direction. The upper fixing portion 170 surrounds the absorbent portion 150 on all sides (top, bottom, left, and right). The absorption section 150 is vibrated by the vibration section 130, causing the upper fixing section 170 to vibrate. The lower fixing part 160 does not vibrate.
[0080] <<Left and right center plane C2>> The vertical plane passing through the center of the vibration-damping section 140 (absorbing section 150) in the left-right direction is defined as the left-right center plane C2. The front-to-back central plane C1 and the left-to-right central plane C2 are perpendicular to each other. The intersection line where the front-to-back central plane C1 and the left-to-right central plane C2 intersect is the vertical central axis C3, which is the front-to-back, left-to-right center of the vibration isolation unit 140 (absorption unit 150). In a plan view, the point where the front-to-back central plane C1 and the left-to-right central plane C2 intersect is the front-to-back and left-to-right center of the vibration isolation section 140 (absorption section 150) in a plan view. The vibration isolation section 140, the fixing plate 180, and the suspension plate 117 are symmetrical with respect to the left-right central plane C2. The central vertical cross-section of the vibration-damping section 140 in the left-right direction is the same plane as the front-rear central plane C1. The vibration damping section 140 is fixed to the workpiece mounting section 120 so that the weight of the workpiece and workpiece 900 is applied to the front-to-back center and the left-to-right center of the vibration damping section 140.
[0081] ●●Effects of Embodiment 3●● According to Embodiment 3, since a load is applied to the left-right center of the vibration isolation unit 140, the load in the left-right direction is applied to the vibration isolation unit 140 as a force in the vertical direction.
[0082] According to Embodiment 3, the weight (load) of the workpiece mounting section 120 and the workpiece 900 is applied to the vertical central axis C3 located in the front-to-back center and left-to-right center of the vibration damping section 140, so that uneven stress is not applied to the vibration damping section 140.
[0083] ● Modified form of upper plate 171 The upper plate 171, the connecting plate 172, and the lower plate 173 may be integrally molded or all of them may be integrally molded.
[0084] ● Modified form of the fixing plate 180 The lower plate 173 and the fixing plate 180 may be integrally molded. The fixing plate 180 may be eliminated, and the lower plate 173 and the workpiece mounting section 120 may be directly fixed.
[0085] ● Modified example of workpiece mounting section 120 The fixing plate 180 and the lower plate 173 may be eliminated, and the lower ends of the two connecting plates 172 may be directly fixed to the upper surface of the workpiece mounting portion 120.
[0086] Embodiment 4. The differences from Embodiments 1, 2, and 3 will be explained below. ●●Figure 9: Workpiece holding device 100 and hole filling device 200●● Figure 9 is a perspective view of the workpiece holding device 100 and the hole filling device 200. The difference between Figure 9 and Figure 1 lies in the configuration of the housing 110 and the vibration isolation unit 140.
[0087] The vibration isolation unit 140 is A vibration-absorbing section 150, A lower fixing part 160 is fixed to the upper surface of the side frame 114 of the housing 110 and to the lower part of the absorption part 150, The upper fixing part 170 is fixed to the workpiece mounting part 120 and to the upper part of the absorption part 150. It has.
[0088] The casing 110 does not have an upper frame 116. Each of the left and right vibration-damping sections 140 has one upper fixing section 170. A single upper fixing part 170 has vibrating parts 130 fixed to both the left and right ends.
[0089] The vibration isolation section 140, the vibration section 130, the workpiece mounting section 120, and the side frame 114 are symmetrical in the front-to-back direction with respect to the front-to-back central plane C1. The vibration-damping section 140, the absorption section 150, the lower fixing section 160, and the side frame 114 are symmetrical with respect to the left-right central plane C2. The vibration isolation unit 140 is fixed to the workpiece mounting unit 120 so that the weight of the workpiece mounting unit 120 and the workpiece 900 is supported by the vertical central axis C3 located in the front-to-back center and left-to-right center of the vibration isolation unit 140. The vertical central axis C3 of the vibration isolation unit 140 and the vertical central axes C4 located in the front-to-back center and left-to-right center of the side frame 114 are the same axis. The side frame 114 supports the weight of the workpiece mounting section 120, the workpiece 900, the vibration isolation section 140, and the vibration section 130 on its vertical central axis C4.
[0090] ●●Effects of Embodiment 4●● According to Embodiment 4, the weight (load) of the workpiece mounting section 120 and the workpiece 900 is directly applied to the side frame 114 at the front-to-rear center (front-to-rear center surface C1) and the left-to-right center (left-to-right center surface C2) of the vibration-damping section 140, resulting in a robust configuration.
[0091] According to Embodiment 4, the weight of the workpiece mounting section 120, the workpiece 900, the vibration damping section 140, and the vibration section 130 is directly applied to the vertical central axis C4 of the side frame 114, resulting in a robust structure.
[0092] ●●Modified Examples of Embodiments 1, 2, 3, and 4●● The following describes a modified version of the embodiment described above.
[0093] ●Figure 10: Number of absorbent sections 150● As shown in Figure 10, the absorbent section 150 may be reduced to a single unit. Although not shown in the diagram, the number of absorption sections 150 may be three or more. Although not shown in the diagram, the absorption section 150 may be inverted vertically. Although not shown in the illustration, the shape of the vibration-damping rubber 152 may be round, cylindrical, cylindrical, rectangular prism, mat-shaped, or other shapes. Although not shown in the diagram, the vibration-damping rubber 152 can be fixed with screws, bolts, nuts, or a combination thereof. According to the configuration shown in Figure 10, the weight (load) of the workpiece mounting section 120 and the workpiece 900 is applied to the vertical central axis C3 located in the front-to-back center and left-to-right center of the vibration isolation section 140, so that uneven stress is not applied to the vibration isolation section 140.
[0094] ●Figure 11: Coupling 154 and spring 156● As shown in Figure 11, the vibration-damping section 140 may have either a coupling 154 or a spring 156 instead of vibration-damping rubber 152. (a) is a front view of Figure 2(a) with the vibration-damping rubber 152 replaced by a coupling 154. (b) is a front view of Figure 6(a) with the vibration-damping rubber 152 replaced by a coupling 154. (c) is a front view of Figure 8(a) with the vibration-damping rubber 152 replaced by a coupling 154. (d) is a front view of Figure 2(a) in which the vibration-damping rubber 152 has been replaced with a spring 156.
[0095] ●Coupling 154 Coupling 154 is a shaft coupling, also known as a joint. The coupling 154 is a mechanical component that connects two shafts of a machine and transmits power from the driving side to the driven side. The coupling 154 has the function of absorbing axial vibrations. If the vertical vibration caused by the vibrating part 130 is within the vibration absorption range of the coupling, the coupling can absorb all of the vertical vibration. If the vertical vibration caused by the vibrating part 130 exceeds the vibration absorption range of the coupling, the coupling will not be able to absorb all of the vertical vibration. If the coupling cannot absorb all vertical vibrations, the upward or downward movement of the workpiece mounting portion 120 will be performed only partially, at which point the upward or downward movement will stop. By stopping the upward or downward movement, vertical impact can be applied to the workpiece 900.
[0096] ● Spring 156 Spring 156 is a coil spring. Coil springs have the function of absorbing axial vibrations. If the vibration of the workpiece mounting section 120 exceeds the limit of the coil spring's compression direction, the vibration of the workpiece mounting section 120 in the compression direction will stop, allowing an impact to be applied to the workpiece 900.
[0097] ●Rotation mechanism 113● If the workpiece 900 is to be filled only in a vertical position, the rotating mechanism 113 is not necessary. If the workpiece 900 is to be filled only in a vertical position, the base 111, main column 112, and rotating mechanism 113 can be eliminated, and the lower frame 115 of the housing 110 can be fixed to the floor.
[0098] ●Support part 190● The support portion 190 may be positioned on the lower side edge 930 of the workpiece 900, rather than on the lower edge 920 of the workpiece 900. One or more support parts 190 are sufficient. The support part 190 is optional.
[0099] ●Modified examples of the workpiece holding device 100 and the hole filling device 200● The workpiece holding device 100 and the hole-filling device 200 may be rotated 90 degrees in a front view, and the main column 112 may be fixed to the floor for operation.
[0100] ***Supplementary explanation of the embodiment*** The embodiments described above are illustrative of desirable forms and are not intended to limit the technical scope of the present invention. The embodiments may be implemented partially or in combination with other embodiments. Furthermore, the embodiments described above may be combined. [Explanation of Symbols]
[0101] 100 Workpiece holding device, 110 Housing, 111 Base, 112 Main column, 113 Rotation mechanism, 114 Side frame, 115 Lower frame, 116 Upper frame, 117 Hanging plate, 120 Workpiece mounting part, 122 Clamp, 124 Standing wave, 130 Vibration part, 132 Vibrator, 134 Distributor, 136 Pivot point, 140 Vibration isolation part, 150 Absorbing part, 152 Vibration isolation rubber, 154 Coupling, 156 Spring, 160 Lower fixing part, 170 Upper fixing part, 171 Upper plate, 172 Connecting plate, 173 Lower plate, 180 Fixing plate, 190 Support part, 200 Hole filling device, 210 Head, 220 Moving mechanism, 230 Control unit, 900 Workpiece, 901 Through hole, 902 Bottomed hole, 910 top side, 920 bottom side, 930 side side, C1 front and back center plane, C2 left and right center plane, C3 vertical center axis, C4 vertical center axis.
Claims
1. The casing and A workpiece mounting section that fixes the end of the workpiece and attaches the workpiece, A vibrating unit that applies vibration to the workpiece mounting portion, A vibration damping unit is fixed to the housing and the workpiece mounting portion and absorbs vibrations of the workpiece mounting portion caused by the vibration unit. A workpiece holding device equipped with this device.
2. The workpiece holding device according to claim 1, wherein the vibration-damping portion is fixed to the workpiece mounting portion such that the weight of the workpiece mounting portion is applied to the center of the front and rear of the vibration-damping portion.
3. The workpiece holding device according to claim 1, wherein the vibration damping portion is fixed to the workpiece mounting portion such that the weight of the workpiece mounting portion is applied to the left and right center of the vibration damping portion.
4. The vibrating part is positioned at one end and the other end of the workpiece mounting part. The workpiece holding device according to claim 1, wherein the vibration-damping portion is arranged at one end and the other end of the workpiece mounting portion.
5. The aforementioned vibration-damping section is The vibration absorption section, A lower fixing part fixed to the housing and fixed to the lower part of the absorption section, An upper fixing part fixed to the workpiece mounting part and fixed to the upper part of the absorption part A workpiece holding device according to claim 1, having the following features.
6. The aforementioned upper fixing part is, An upper plate fixed to the upper part of the absorbent section, Two connecting plates are fixed to the upper plate with the absorbent portion in the center, The lower plate is positioned parallel to the upper plate and fixed to the two connecting plates. A workpiece holding device according to claim 5, having the following features.
7. The aforementioned vibration-damping section is The vibration absorption section, An upper fixing part fixed to the housing and fixed to the upper part of the absorption section, A lower fixing part fixed to the workpiece mounting part and fixed to the lower part of the absorption part A workpiece holding device according to claim 1, having the following features.
8. The workpiece holding device according to any one of claims 1 to 7, wherein the vibration-damping section comprises vibration-damping rubber, a coupling, or a spring.
9. A workpiece holding device according to any one of claims 1 to 7, A head for filling a hole in a workpiece fixed to the workpiece holding device and A hole-filling device.
10. It has a rotating mechanism, The hole-filling device according to claim 9, wherein the workpiece holding device is rotatably mounted by the rotation mechanism.
11. In a workpiece holding device comprising a housing and a workpiece mounting portion for fixing the workpiece, The workpiece mounting section secures the end of the workpiece and mounts the workpiece. The vibrating unit applies vibration to the workpiece mounting unit, causing the workpiece to vibrate. A workpiece holding method wherein a vibration-damping unit fixed to the housing and the workpiece mounting unit absorbs vibrations of the workpiece mounting unit caused by the vibrating unit.
Citation Information
Patent Citations
Filling assembly
JP2021023934A