Eyelet assembly device

Abstract

The invention discloses an eyelet assembly device, which is miniaturized by suppressing the size of the eyelet assembly device in the vertical direction. The eyelet assembly device (100) comprises: a through-processing part (30); a tightening processing part (40); a support part (50) supporting the through-processing part and the tightening processing part; a moving part (60) switching between a first posture (PA1) in which the through-processing part faces a processing position and a second posture (PA2) in which the tightening processing part faces the processing position; and a working part (70) operating the through-processing part in the first posture and operating the tightening processing part in the second posture. The working part comprises: an upper working body (71) arranged above the support part (50) and extending from a position behind the support part (50) toward the front; and a lower working body (72) arranged below the support part (50) and extending from a position behind the support part (50) toward the front.

Description

Technical Field

[0001] The present invention relates to a hole-fitting device for fitting holes to a sheet-like object to be processed, and more particularly to a hole-fitting device for independently and continuously performing a through-hole process and a hole-tightening process on the object to be processed. Background Art

[0002] Conventionally, there is known an eyelet assembly device for assembling an eyelet on a sheet-like object to be processed. The eyelet assembly device performs a through-hole process to form a through portion in the object to be processed, and then performs a tightening process to attach the eyelet to the through portion.

[0003] Regarding the eyelet assembly device, there are known eyelet assembly devices (single-axis type) that simultaneously perform the penetration processing to form the through portion and the tightening processing to assemble the eyelet, and eyelet assembly devices (two-axis type) that independently and continuously perform the penetration processing and the tightening processing.

[0004] A single-axis eyelet assembly device that simultaneously performs through-hole processing and tightening processing can shorten processing time. However, when the wall of the workpiece is thick, the through-hole processing of the workpiece may be insufficient, sometimes resulting in poor eyelet assembly.

[0005] In contrast, in a two-axis eyelet assembly device that independently and continuously performs penetration processing and tightening processing, for example, after a penetration tool is used to form a penetration portion (e.g., a lower hole) in an object to be processed, the assembly tool is moved toward the penetration portion to perform tightening processing to assemble the eyelet. According to the eyelet assembly device that independently and continuously performs penetration processing and tightening processing, penetration processing can be reliably performed on the object to be processed even when the wall thickness of the object to be processed is thick, thereby enabling good eyelet assembly.

[0006] Prior art literature

[0007] Patent Literature

[0008] Patent Document 1: Japanese Patent No. 9-504836 Summary of the Invention

[0009] Problems to be solved by the invention

[0010] However, the structure of a two-axis eyelet assembly device that independently and continuously performs through-hole processing and tightening processing is complex. For example, in the assembly device for buttons, rivets, etc. disclosed in Patent Document 1, a drilling tool for forming a lower hole in the object and an assembly tool for assembling the button, rivet, etc. are located above and below the object, respectively, and are movable horizontally by push rods. Furthermore, the drilling tool and assembly tool located on the upper portion are driven by a ram that reciprocates vertically, while the drilling tool and assembly tool located on the lower portion are driven by a force transmission arm that swings via a linkage.

[0011] In the assembly device for buttons, rivets, etc. disclosed in Patent Document 1, the mechanism for driving the hole-opening tool and assembly tool arranged at the upper portion is different from the mechanism for driving the hole-opening tool and assembly tool arranged at the lower portion. These mechanisms are driven by a common motor, and the structure of the assembly device is complicated.

[0012] Furthermore, by making the mechanisms for driving the drilling tool and the assembly tool disposed on the upper portion different from those for driving the drilling tool and the assembly tool disposed on the lower portion, it is not easy to coordinate the upper and lower mechanisms at appropriate timing.

[0013] Furthermore, the ram driven by the drilling tool and the assembly tool disposed on the upper portion is disposed so as to extend in the vertical direction, and the drive mechanism for driving the ram is disposed above the ram. Consequently, the vertical dimension of the assembly apparatus increases, resulting in a larger assembly apparatus.

[0014] The present invention has been completed in view of the above situation, and its purpose is to provide a hole eye assembly device, which can independently and continuously perform through processing and tightening processing, can simplify the upper mechanism and the lower mechanism, can make the upper mechanism and the lower mechanism work together at appropriate timing, and can suppress the dimensions in the upper and lower directions and be miniaturized.

[0015] Means for solving problems

[0016] The eyelet assembly device of the present invention assembles an eyelet at a processing position of a processing object having an upper surface and a lower surface, wherein the device comprises:

[0017] a through-processing portion having an upper through-processing portion disposed on the upper surface side of the processing object and a lower through-processing portion disposed on the lower surface side of the processing object, and performing through-processing to form a through portion at a processing position of the processing object;

[0018] a tightening processing portion having an upper tightening processing portion disposed on the upper surface side of the processing object and a lower tightening processing portion disposed on the lower surface side of the processing object, and performing a tightening process for fitting an eyelet into the through portion formed by the through processing portion;

[0019] A supporting portion, supporting the through-processing portion and the tightening processing portion;

[0020] a moving portion that moves the support portion so as to switch between a first posture in which the through-processing portion faces the processing position and a second posture in which the tightening processing portion faces the processing position; and

[0021] The working part operates the through-processing part in the first posture and operates the tightening processing part in the second posture,

[0022] The direction in which the support portion is moved so as to switch from the first posture to the second posture is defined as forward.

[0023] The direction in which the support portion is moved so as to switch from the second posture to the first posture is defined as rearward,

[0024] The direction perpendicular to the up-down direction and the front-back direction is defined as the left-right direction.

[0025] The working part has:

[0026] an upper working body which operates the upper through-processing portion in the first posture and operates the upper tightening processing portion in the second posture, and is arranged to extend from a position rearward of the support portion toward the front above the support portion when viewed from the left and right directions; and

[0027] The lower working body operates the lower through-processing portion in the first posture and operates the lower tightening processing portion in the second posture, and is arranged to extend from the rear of the support portion toward the front when viewed from the left and right directions.

[0028] Effects of the Invention

[0029] According to the eyelet assembly device of the present invention, the upper and lower mechanisms can be simplified and coordinated at appropriate timing, and the vertical dimensions can be suppressed to achieve miniaturization. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a perspective view of an eyelet assembly device according to an embodiment of the present invention.

[0031] Figure 2 This is a diagram showing the process of attaching an eyelet to a workpiece.

[0032] Figure 3 It is a left side view of the eyelet assembly device.

[0033] Figure 4 It is a simplified diagram of the right side view of the eyelet assembly device.

[0034] Figure 5 It is a left side view showing the internal structure of the eyelet assembly device.

[0035] Figure 6 It is a rear view showing the internal structure of the eyelet fitting device.

[0036] Figure 7 It is a perspective view showing a penetration processing portion, a tightening processing portion, a supporting portion, and a moving portion of the eyelet assembly device.

[0037] Figure 8 It is a perspective view showing the working part of the eyelet assembly device.

[0038] Figure 9 It is a side view showing the penetration processing part, tightening processing part, supporting part, moving part and working part of the eyelet assembly device.

[0039] Figure 10 It is a perspective view showing the first supply unit and the second supply unit of the eyelet supply unit.

[0040] Figure 11 It is a perspective view showing the filling portion of the eyelet supply portion.

[0041] Figure 12 It is a left side view showing the operation of the moving part and the working part of the eyelet assembly device.

[0042] Figure 13 It is a left side view showing the operation of the moving part and the working part of the eyelet assembly device.

[0043] Figure 14 It is a left side view showing the operation of the moving part and the working part of the eyelet assembly device.

[0044] Figure 15 It is a left side view showing the operation of the moving part and the working part of the eyelet assembly device.

[0045] Figure 16 It is a left side view showing the operation of the moving part and the working part of the eyelet assembly device.

[0046] Figure 17 It is a diagram showing the operation of the stopper of the eyelet setting device.

[0047] Description of labels

[0048] 100 Eyelet Assembly Device

[0049] 30 Through-processing department

[0050] 31 Upper through-processing part

[0051] 32 Lower through-processing part

[0052] 40 Tightening Processing Department

[0053] 41 Upper tightening processing part

[0054] 42 Lower tightening processing part

[0055] 50 Support

[0056] 60 Mobile Department

[0057] 70 Work Department

[0058] 71 Upper working body (upper arm)

[0059] 72 Lower working body (lower arm)

[0060] PA1 First Posture

[0061] PA2 Second Posture

[0062] PA3 Third Posture

[0063] T eyelet

[0064] T1 eyelet female

[0065] T2 eyelet male

[0066] W Processing object

[0067] W1 top surface

[0068] W2 lower surface

[0069] WP processing position DETAILED DESCRIPTION

[0070] An eyelet installation device according to one embodiment of the present invention installs an eyelet at a processing position of a processing object having an upper surface and a lower surface, and includes:

[0071] a through-processing portion having an upper through-processing portion disposed on the upper surface side of the processing object and a lower through-processing portion disposed on the lower surface side of the processing object, and performing through-processing to form a through portion at a processing position of the processing object;

[0072] a tightening processing portion having an upper tightening processing portion disposed on the upper surface side of the processing object and a lower tightening processing portion disposed on the lower surface side of the processing object, and performing a tightening process for fitting an eyelet into the through portion formed by the through processing portion;

[0073] A supporting portion, supporting the through-processing portion and the tightening processing portion;

[0074] a moving portion that moves the support portion so as to switch between a first posture in which the through-processing portion faces the processing position and a second posture in which the tightening processing portion faces the processing position; and

[0075] The working part operates the through-processing part in the first posture and operates the tightening processing part in the second posture,

[0076] The direction in which the support portion is moved so as to switch from the first posture to the second posture is defined as forward.

[0077] The direction in which the support portion is moved so as to switch from the second posture to the first posture is defined as rearward,

[0078] The direction perpendicular to the up-down direction and the front-back direction is defined as the left-right direction.

[0079] The working part has:

[0080] an upper working body which operates the upper through-processing portion in the first posture and operates the upper tightening processing portion in the second posture, and is arranged to extend from a position rearward of the support portion toward the front above the support portion when viewed from the left and right directions; and

[0081] The lower working body operates the lower through-processing portion in the first posture and operates the lower tightening processing portion in the second posture, and is configured to extend from the rear of the support portion toward the front below the support portion when viewed from the left and right directions (first structure).

[0082] According to the above configuration, the working portion that operates the penetration processing portion and the tightening processing portion includes an upper working body and a lower working body, and both the upper working body and the lower working body are arranged to extend from the rear toward the front.

[0083] Therefore, the upper working body and the lower working body can be operated using a common mechanism, the upper mechanism and the lower mechanism can be simplified, and the upper mechanism and the lower mechanism can be operated in coordination with appropriate timing.

[0084] In addition, the upper working body and the lower working body are arranged in a manner extending from the rear toward the front, which can reduce the space in the vertical direction for arranging the upper working body and the lower working body, thereby suppressing the vertical dimension of the eyelet assembly device and achieving miniaturization.

[0085] In the first structure above, it may be that

[0086] The working part also has:

[0087] a first driving part, generating a rotational driving force for operating the upper working body and the lower working body;

[0088] a drive conversion mechanism that connects the upper working body and the lower working body and converts the rotational drive force from the first drive unit into a drive force for operating the upper working body and the lower working body; and

[0089] a drive shaft for inputting the rotational driving force from the first drive unit to the drive conversion mechanism;

[0090] When viewed from the left-right direction, the drive shaft is arranged below the upper working body and above the lower working body (second structure).

[0091] According to the above configuration, the drive shaft for inputting the rotational drive force from the first drive unit to the drive conversion mechanism is arranged below the upper operating body and above the lower operating body when viewed from the left-right direction.

[0092] Therefore, the drive conversion mechanism can be arranged at a low position, and the vertical dimension of the eyelet assembly device can be suppressed to achieve miniaturization.

[0093] In the above second structure, it can be,

[0094] The support portion has:

[0095] an upper holding portion for holding the upper through-processing portion and the upper tightening processing portion;

[0096] a lower holding portion for holding the lower through-processing portion and the lower tightening processing portion; and

[0097] A holding connecting portion connects the upper holding portion and the lower holding portion,

[0098] The drive shaft is arranged rearward of the holding and coupling portion when viewed from the left-right direction (third configuration).

[0099] According to the above configuration, the drive shaft that inputs the rotational drive force from the first drive unit to the drive conversion mechanism is arranged rearward of the holding and coupling portion when viewed in the left-right direction.

[0100] Therefore, the drive conversion mechanism of the eyelet assembly device can be compactly arranged at a position that does not interfere with the support portion.

[0101] In the second or third structure above, it may be,

[0102] The drive conversion mechanism comprises:

[0103] a first conversion mechanism for converting a rotational driving force input to the driving shaft from the first driving portion into a driving force in a vertical direction;

[0104] a second conversion mechanism for converting the vertical driving force of the first conversion mechanism into a front-rear driving force; and

[0105] The third conversion mechanism converts the driving force of the second conversion mechanism in the front-to-back direction into a driving force that causes the upper working body and the lower working body to work in the upper and lower directions respectively, so as to cause the through processing part and the tightening processing part to work (fourth structure).

[0106] According to the above structure, the drive conversion mechanism for converting the rotational drive force from the first drive unit into the drive force for operating the upper and lower working bodies includes the first, second and third conversion mechanisms, which respectively operate the upper and lower working bodies.

[0107] Thereby, can make upper working body and lower working body respectively work by same mechanism.In addition, can make drive conversion mechanism become simple structure, therefore can reduce the size of the up-down direction of drive conversion mechanism and compactly configure.

[0108] In the fourth structure above, it may be that

[0109] The third conversion mechanism is a toggle mechanism (fifth structure).

[0110] According to the above configuration, the drive conversion mechanism for operating the upper working body and the lower working body separately includes a toggle mechanism.

[0111] Therefore, the working force required for the penetration processing and the tightening processing can be generated by the compact drive conversion mechanism.

[0112] In the fifth structure above, it may be that

[0113] The second conversion mechanism has a drive connection portion arranged in the front-rear direction along the upper working body and the lower working body.

[0114] The drive coupling portion is capable of adjusting the length in the front-rear direction (sixth configuration).

[0115] According to the above configuration, the length of the drive coupling portion in the front-rear direction can be adjusted.

[0116] Therefore, by adjusting the length of the drive coupling portion, the workload of the toggle mechanism can be adjusted. Thus, the workload of the upper working body and the lower working body can be adjusted to appropriately perform penetration processing and tightening processing.

[0117] In the first to sixth structures described above, it may be that:

[0118] It also has a hole supplying portion for supplying holes to the tightening processing portion,

[0119] The moving portion moves the support portion so as to switch between the first posture, the second posture, and a third posture, wherein the third posture is a posture in which the support portion is positioned rearward of the first posture.

[0120] The eyelet supplying portion supplies the eyelet to the tightening portion in a state where the support portion is switched to the third posture (seventh configuration).

[0121] According to the above configuration, the eyelet supplying section supplies the eyelet to the tightening section in a state where the support section is switched to the third posture. In the third posture, the support section is positioned rearward of the first posture.

[0122] Therefore, when assembling the eyelet, the object, which is positioned so as to be clamped by the through-processing section and the tightening processing section, and the eyelet supply section are less likely to interfere with each other, and the end of the object can be inserted further back. This makes it easier to assemble the eyelet at a position away from the end of the object, which can improve workability.

[0123] In the first to seventh structures described above, it may be that:

[0124] The eyelet supply portion has:

[0125] A first supplying portion supplies the eyelet male body to the tightening processing portion; and

[0126] The second supply unit supplies the eyelet female body to the tightening processing unit.

[0127] The first supply unit and the second supply unit are feeders that transport the eyelet males and the eyelet females by vibration (eighth structure).

[0128] According to the above configuration, the first supply unit and the second supply unit of the eyelet supply unit are feeders that convey the eyelet males and the eyelet females by vibration.

[0129] Therefore, the eyelet male body and the eyelet female body can be smoothly supplied to the upper tightening processing part and the lower tightening processing part respectively while arranging the eyelet male body and the eyelet female body, and the workability of assembling the eyelet can be improved.

[0130] In the first to eighth structures described above, it may be that:

[0131] The moving portion includes a second driving portion that moves the support portion in the front-rear direction (ninth configuration).

[0132] According to the above configuration, the moving portion includes the second driving portion that moves the support portion in the front-rear direction.

[0133] Therefore, the moving portion can be driven while being separated from the working portion, and the structure of the eyelet assembly device can be simplified.

[0134] In the first to ninth structures above, it may be that:

[0135] A stop portion is also provided, the stop portion having:

[0136] The detection body is lowered toward the vicinity of the processing position of the processing object during the execution of the through-processing of the through-processing portion and / or the execution of the tightening processing portion, before the upper through-processing portion operates and / or before the upper tightening processing portion operates; and

[0137] The detection unit detects when the detection object descends to a specified height.

[0138] When the detection unit detects the detection object, the stop unit continues the penetration process and / or the tightening process.

[0139] The stopping portion stops the penetration processing and / or the tightening processing when the detection portion does not detect the detection object (tenth configuration).

[0140] According to the above configuration, the stopping section continues the penetration process and / or the tightening process when the detection section detects the detection object, and stops the penetration process and / or the tightening process when the detection section does not detect the detection object.

[0141] Therefore, when a foreign object or the like is detected by the detection device, the penetration process and / or the tightening process can be stopped, and the safety of the eyelet assembly operation can be improved.

[0142] [Implementation Method]

[0143] The eyelet assembly device 100 according to an embodiment of the present invention will be described in detail below with reference to the accompanying drawings. Identical or corresponding parts in the figures are denoted by the same reference numerals, and their description will not be repeated. It should be noted that, to facilitate understanding, the following drawings may show simplified or schematic structures, or some components may be omitted. Furthermore, the dimensional ratios between components shown in the drawings do not represent actual dimensional ratios. The illustrated dimensions are merely examples and are not intended to be limiting.

[0144] In the following figures, arrow U indicates the upward direction, arrow D indicates the downward direction, arrow F indicates the forward direction, arrow B indicates the rearward direction, arrow R indicates the right direction, and arrow L indicates the left direction.

[0145] Figure 1 1 is a perspective view of an eyelet assembly device 100 according to an embodiment of the present invention. Figure 1 As shown, the eyelet assembly device 100 is a device for assembling an eyelet T on a sheet-like object W. The eyelet assembly device 100 independently and continuously performs a penetrating process into the object W and a tightening process of the eyelet T. First, the process of assembling the eyelet T on the object W will be described.

[0146] Figure 2 1 is a diagram showing the process of assembling the eyelet T to the object W. Figure 2 As shown in (a), the eyelet T consists of a female eyelet body T1 and a male eyelet body T2. The female eyelet body T1 has a female eyelet body T11 and an insertion hole T12. The male eyelet body T2 has a male eyelet body T21 and a leg portion T22. The leg portion T22 is cylindrical and has a through hole formed in the center.

[0147] like Figure 2 As shown in (b), the object W is in the form of a sheet and has an upper surface W1 and a lower surface W2. The object W is made of a material such as cloth, fabric, leather, cardboard, or resin, and is, for example, a sheet for clothing or a tent.

[0148] When the eyelet assembly device 100 is used to assemble the eyelet T at the processing position WP of the object W, as shown in FIG. Figure 2 As shown in (c), first, the processing position WP of the processing object W is subjected to through-processing to form a through portion (lower hole) WN.

[0149] Then, if Figure 2 As shown in (d), the leg T22 of the eyelet male body T2 is inserted into the through-hole (lower hole) WN from the upper surface W1. The eyelet female body T1 is positioned on the lower surface W2, and the leg T22 is inserted into the insertion hole T12. In this state, a tightening process is performed to expand and secure the leg T22 relative to the eyelet female body T11, and the eyelet T is then assembled at the processing position WP of the object W.

[0150] The eyelet assembly device 100 independently and continuously performs the above-mentioned through-processing and eyelet T tightening processing on the processing position WP of the processing object W. Figure 2 In the figure, the male eyelet T2 is arranged on the upper surface W1 side of the processing object W, and the female eyelet T1 is arranged on the lower surface W2 side of the processing object W, but the configuration may be the opposite, that is, the male eyelet T2 is arranged on the lower surface W2 side of the processing object W, and the female eyelet T1 is arranged on the upper surface W1 side of the processing object W.

[0151] Then, return Figure 1 The structure of the eyelet assembly device 100 is described. Figure 1As shown, the eyelet assembly device 100 includes a device body 10. A working section 11 for assembling an eyelet T onto an object W is provided on the front side of the device body 10. The working section 11 has a space open on the front side to allow the end of the object W to be inserted. A work table 13 is provided on the working section 11 on which the end of the object W is placed.

[0152] The apparatus body 10 contains mechanisms for independently and continuously performing the through-processing of the object W and the tightening of the hole T, namely, the through-processing unit 30, the tightening processing unit 40, the supporting unit 50, the moving unit 60 and the working unit 70 (see Figure 5 ). These institutions will be described in detail later.

[0153] A first supply unit 91 and a second supply unit 92 are arranged on the side of the device body 10 (see Figure 3 、 Figure 4 ). The first supply section 91 and the second supply section 92 respectively accommodate a plurality of eyelet male bodies T2 or eyelet female bodies T1. The accommodated eyelet male bodies T2 and eyelet female bodies T1 are fed to the tightening processing section 40 (refer to Figure 5 )supply.

[0154] A start switch 21 and an operation panel 22 are located on the top of the device body 10. The start switch 21 is used to start and stop the eyelet inserting device 100. The operation panel 22 is a display unit that displays various functions of the eyelet inserting device 100 and various setting buttons. For example, when the start switch 21 is operated to start the eyelet inserting device 100, selection options such as "Manual" and "Auto" are displayed on the operation panel 22.

[0155] A manual switch 23 is provided on the side of the working unit 11. A foot switch 24 is provided at the bottom of the device body 10. The manual switch 23 is a switch that starts the eyelet installation operation of the eyelet installation device 100 by pressing the operator's finger. The foot switch 24 is a switch that starts the eyelet installation operation of the eyelet installation device 100 by stepping on the operator's foot.

[0156] Figure 3 is a left side view of the eyelet assembly device 100, Figure 4 1 is a schematic diagram of the right side of the eyelet assembly device 100. Figure 3 and Figure 4 In FIG, a part of the workbench 13 is broken away, and the structure arranged on the lower surface side of the workbench 13 is partially shown.

[0157] like Figure 3 and Figure 4As shown, a working unit 11 is provided on the front side of the apparatus body 10. The working unit 11 is open on the front side so that the end of the workpiece W can be inserted. A work table 13 is provided on the working unit 11 so as to extend in the left-right direction.

[0158] When viewed from the left and right sides, a portion of the through-processing portion 30 and the tightening-processing portion 40 is exposed on the working portion 11 (see FIG. Figure 5 The through-processing section 30 performs through-processing to form a through-portion WN at the processing position WP of the object W, and the tightening section 40 performs tightening processing to assemble the eyelet T into the through-portion WN formed by the through-processing section 30. Figure 3 and Figure 4 , parts of the upper through-processed portion 31 and the lower through-processed portion 32 of the through-processed portion 30 and parts of the upper tightening processed portion 41 and the lower tightening processed portion 42 of the tightening processed portion 40 are shown.

[0159] The work table 13 is provided with a contact portion 14 and an opening 15. The contact portion 14 abuts against an end of the workpiece W to prevent positional displacement of the workpiece W. The opening 15 is a hole portion that penetrates the through-processing portion 30 when performing through-processing, and penetrates the tightening processing portion 40 when performing tightening processing.

[0160] Figure 5 1 is a left side view showing the internal structure of the eyelet assembly device. Figure 5 As shown, the eyelet assembly device 100 includes a penetration processing portion 30 , a tightening processing portion 40 , a supporting portion 50 , a moving portion 60 and a working portion 70 .

[0161] The through-processing section 30 performs through-processing to form a through-processing portion WN at a processing position WP of the object W placed on the work table 13. The through-processing section 30 includes an upper through-processing section 31 and a lower through-processing section 32 (see FIG. Figure 7 ). The upper through-processing portion 31 is pressed downward while the lower through-processing portion 32 is pressed upward, and the through-processing portion WP of the workpiece W is punched using both top ends to form a through-processing portion (lower hole) WN.

[0162] The tightening processing part 40 performs tightening processing to fit the eyelet T to the through portion WN formed by the through processing part 30. The tightening processing part 40 includes an upper tightening processing part 41 and a lower tightening processing part 42 (see Figure 7The female eyelet T1 or the male eyelet T2 is attached to the top end of the upper tightening portion 41 and the top end of the lower tightening portion 42, respectively. In this state, the upper tightening portion 41 is pressed downward while the lower tightening portion 42 is pressed upward, and the eyelet T is attached to the through-hole WN of the object W from both top ends.

[0163] The support portion 50 supports the through-processing portion 30 and the tightening processing portion 40. The support portion 50 includes an upper holding portion 51, a lower holding portion 52, and a holding connection portion 53 (see Figure 7 ).

[0164] The upper holding portion 51 holds the upper penetration portion 31 of the penetration portion 30 and the upper tightening portion 41 of the tightening portion 40 so as to be movable in the up-down direction.

[0165] The lower holding portion 52 holds the lower penetration portion 32 of the penetration portion 30 and the lower tightening portion 42 of the tightening portion 40 so as to be movable in the up-down direction.

[0166] The holding connection portion 53 connects the upper holding portion 51 and the lower holding portion 52. The holding connection portion 53 has a generally U-shaped shape with an open front. By connecting the upper holding portion 51 and the lower holding portion 52 via the holding connection portion 53, the upper holding portion 51 and the lower holding portion 52 can be moved in the front-to-back direction at the same timing.

[0167] The moving part 60 switches the posture of the support part 50 to the first posture PA1 (see Figure 13 、 Figure 14 ), second posture PA2 (refer to Figure 15 、 Figure 16 ) and the third posture PA3 (refer to Figure 12 ) to move the support portion 50. The moving portion 60 includes a guide portion 61 and a second drive portion 65 (see Figure 7 ).

[0168] The guide portion 61 supports the support portion 50 so as to be movable in the front-rear direction.

[0169] The second driving portion 65 moves the support portion 50 in the front-rear direction along the guide portion 61 .

[0170] The working unit 70 operates the penetration processing unit 30 in the first posture PA1 and operates the tightening processing unit 40 in the second posture PA2. The working unit 70 includes an upper arm 71, a lower arm 72, a first driving unit 75, a drive conversion mechanism 80, and a driving shaft 78 (see FIG. Figure 8 ).

[0171] The upper arm 71 is operated by pushing the upper through-processing portion 31 downward in the first posture PA1 (see Figure 14 ) and in the second posture PA2, the upper tightening processing part 41 is pressed downward to make it work (refer to Figure 16 ). When viewed from the left-right direction, the upper arm 71 is arranged above the support portion 50 so as to extend from the rear of the support portion 50 toward the front. The upper arm 71 corresponds to the upper working body of the present invention.

[0172] The lower arm 72 is operated by pushing the lower through-processing portion 32 upward in the first posture PA1 (see Figure 14 ) and in the second posture PA2, the lower tightening processing part 42 is pressed upward to make it work (refer to Figure 16 The lower arm 72 is arranged below the support portion 50 and extends from a position further rearward than the support portion 50 toward the front when viewed from the left-right direction. The lower arm 72 corresponds to the lower working body of the present invention.

[0173] The first driving portion 75 generates a rotational driving force for operating the upper arm 71 and the lower arm 72 .

[0174] The drive conversion mechanism 80 couples the upper arm 71 and the lower arm 72 and converts the rotational drive force from the first drive unit 75 into a drive force for operating the upper arm 71 and the lower arm 72 .

[0175] The drive shaft 78 is a shaft that connects the first drive unit 75 to the drive conversion mechanism 80. The drive shaft 78 inputs the rotational drive force from the first drive unit 75 to the drive conversion mechanism 80. When viewed from the left and right directions, the drive shaft 78 is positioned below the upper arm 71 and above the lower arm 72. Furthermore, when viewed from the left and right directions, the drive shaft 78 is positioned rearward of the retaining coupling portion 53.

[0176] By arranging the drive shaft 78 in such an area, the drive conversion mechanism 80 can be arranged at a low position, and the vertical dimension of the eyelet installation device 100 can be suppressed, thereby achieving miniaturization. In addition, the drive conversion mechanism 80 of the eyelet installation device 100 can be compactly arranged at a position that does not interfere with the support portion 50.

[0177] Figure 6 1 is a rear view showing the internal structure of the eyelet assembly device 100. Figure 6 As shown, the first drive unit 75 and the drive conversion mechanism 80 are connected by a drive shaft 78. A handle 79 is provided on the front surface side of the drive shaft 78. The handle 79 is provided for manually operating the drive conversion mechanism 80 without relying on the first drive unit 75 during maintenance or the like.

[0178] Figure 7 It is a perspective view showing the penetration processing unit 30, the tightening processing unit 40, the support unit 50, and the moving unit 60 of the eyelet assembly device.

[0179] The penetration processing section 30 performs penetration processing to form a penetration portion WN at a processing position WP of the object W placed on the work table 13. The penetration processing section 30 includes an upper penetration processing section 31 and a lower penetration processing section 32.

[0180] The upper through-processing portion 31 is disposed on the upper surface W1 side of the object W, and the lower through-processing portion 32 is disposed on the lower surface W2 side of the object W. The upper through-processing portion 31 and the lower through-processing portion 32 are disposed so that their top ends face each other. A mold for forming a through-processing portion WN in the object W is formed at the top ends of the upper through-processing portion 31 and the lower through-processing portion 32.

[0181] The upper through-processing portion 31 is held vertically movable by the upper holding portion 51 of the support portion 50. The lower through-processing portion 32 is held vertically movable by the lower holding portion 52 of the support portion 50. While the upper through-processing portion 31 is pressed downward by the upper arm 71, the lower through-processing portion 32 is pressed upward by the lower arm 72. The through-processing portion (lower hole) WN is formed by punching a processing position WP of the workpiece W using both top ends.

[0182] The tightening portion 40 performs a tightening process for fitting the eyelet T into the through portion WN formed by the through portion 30. The tightening portion 40 includes an upper tightening portion 41 and a lower tightening portion 42.

[0183] The upper tightening section 41 is positioned on the upper surface W1 side of the object W, and the lower tightening section 42 is positioned on the lower surface W2 side of the object W. The upper and lower tightening sections 41, 42 are positioned so that their top ends face each other. A mold for tightening the female eyelet T1 and the male eyelet T2 is formed at the top ends of the upper and lower tightening sections 41, 42.

[0184] The upper tightening section 41 is held in the upper retaining portion 51 of the support 50 so that it can move vertically. The lower tightening section 42 is held in the lower retaining portion 52 of the support 50 so that it can move vertically. The female eyelet T1 or the male eyelet T2 is attached to the top end of the upper tightening section 41 and the top end of the lower tightening section 42, respectively. In this state, the upper tightening section 41 is pressed downward by the upper arm 71 while the lower tightening section 42 is pressed upward by the lower arm 72, so that the eyelet T is attached to the through-hole WN of the object W from both top ends.

[0185] The support portion 50 supports the penetration portion 30 and the tightening portion 40. The support portion 50 includes an upper holding portion 51, a lower holding portion 52, and a holding and connecting portion 53.

[0186] The upper holding portion 51 holds the upper through-processing portion 31 of the through-processing portion 30 and the upper tightening processing portion 41 of the tightening processing portion 40. The upper holding portion 51 holds the upper through-processing portion 31 and the upper tightening processing portion 41 in a manner that allows them to move in the up and down directions. After working downward, the upper through-processing portion 31 and the upper tightening processing portion 41 are forced upward by the force member 54 in a manner that restores them to their original posture. The upper end side of the force member 54 is fixed, and a pin (not shown) is provided at the lower end of the force member 54. The pin is installed in the horizontal direction and abuts against the upper through-processing portion 31 and the upper tightening processing portion 41 through two longitudinal slits (not shown) provided on the left side of the upper holding portion 51. The pin moves downward by the operation of the upper through-processing portion 31 and the upper tightening processing portion 41 , and the urging member 54 extends. The urging member 54 urges the upper through-processing portion 31 and the upper tightening processing portion 41 upward by the rebound elastic force thereof to restore them to their original positions.

[0187] The lower holding portion 52 holds the lower through-processing portion 32 of the through-processing portion 30 and the lower tightening processing portion 42 of the tightening processing portion 40. The lower holding portion 52 holds the lower through-processing portion 32 and the lower tightening processing portion 42 in a manner that allows them to move in the up and down directions. After working upward, the lower through-processing portion 32 and the lower tightening processing portion 42 are forced downward by the force member 55 in a manner that restores them to their original posture. The lower end side of the force member 55 is fixed, and a pin (not shown) is provided at the upper end of the force member 55. The pin is installed in the horizontal direction and abuts against the lower through-processing portion 32 and the lower tightening processing portion 42 through two longitudinal slits (not shown) provided on the left side of the lower holding portion 52. The pin moves upward due to the operation of the lower through-processed portion 32 and the lower tightening processed portion 42 , and the biasing member 55 extends. The biasing member 55 biases the lower through-processed portion 32 and the lower tightening processed portion 42 downward due to the rebound elastic force of the biasing member 55 so as to restore the lower through-processed portion 32 and the lower tightening processed portion 42 to their original positions.

[0188] The retaining connection portion 53 connects the upper retaining portion 51 and the lower retaining portion 52. The retaining connection portion 53 has a generally U-shaped shape with an open front. The retaining connection portion 53 is attached to the right side of the upper retaining portion 51 and the lower retaining portion 52. Thus, the retaining connection portion 53 connects the upper retaining portion 51 and the lower retaining portion 52.

[0189] The moving part 60 switches the posture of the support part 50 to the first posture PA1 (see Figure 13 、 Figure 14 ), second posture PA2 (refer to Figure 15 、 Figure 16 ) and the third posture (refer to Figure 12 ) in a manner similar to the embodiment of the present invention. The first posture PA1 is a posture in which the through-processing section 30 faces the processing position WP. The second posture PA2 is a posture in which the tightening processing section 40 faces the processing position WP. The third posture PA3 is a posture in which the support section 50 is positioned further back than the first and second postures PA1 and PA2, and in which the eyelet supply section 90 supplies the eyelet females T1 and the eyelet males T2 to the tightening processing section 40. The moving section 60 includes a guide section 61 and a second drive section 65.

[0190] The guide portion 61 supports the support portion 50 so as to be movable in the front-rear direction. The guide portion 61 is arranged on the right side of the support portion 50 and supports the support portion 50 so as to be movable in the front-rear direction relative to the device body 10.

[0191] The second driving portion 65 moves the support portion 50 in the front-rear direction along the guide portion 61. The second driving portion 65 includes a second driving source 66, a speed reducer 67, a pinion 68, and a rack 69.

[0192] The second drive source 66 generates a drive force for moving the support portion 50 in the front-rear direction. As the second drive source 66, for example, a servo motor or a stepping motor can be used.

[0193] The speed reducer 67 transmits the rotational driving force of the second drive source 66 to the pinion gear 68 while reducing the speed.

[0194] Pinion 68 is attached to the output shaft of speed reducer 67. Rack 69 is arranged on the upper portion of support portion 50, extending in the front-to-back direction. Pinion 68 and rack 69 are meshed with each other. Second drive source 66 rotates forward and reverse at a predetermined rotational speed based on a control signal from a control unit (not shown), causing rack 69 to move a predetermined distance in the front-to-back direction. Consequently, moving unit 60 switches the posture of support portion 50 between first posture PA1, second posture PA2, and third posture PA3.

[0195] Figure 8 1 is a perspective view showing the working portion 70 of the eyelet assembly device 100 . Figure 9 1 is a side view showing the penetration processing unit 30, the tightening processing unit 40, the support unit 50, the moving unit 60 and the working unit 70 of the eyelet assembly device 100. Figure 8 and Figure 9 , mainly describes the structure of the working part 70 in detail.

[0196] like Figure 8As shown, the working portion 70 includes an upper arm 71 , a lower arm 72 , a first driving portion 75 , a driving shaft 78 , and a drive conversion mechanism 80 .

[0197] The upper arm 71 is a member that operates the upper penetration processing unit 31 in the first posture PA1 and operates the upper tightening processing unit 41 in the second posture PA2. The upper arm 71 is arranged to extend forward from behind the support unit 50 above the support unit 50 when viewed from the left and right directions.

[0198] The lower arm 72 is a member that operates the lower penetration processing section 32 in the first posture PA1 and operates the lower tightening processing section 42 in the second posture PA2. The lower arm 72 is arranged to extend forward from behind the support section 50 below the support section 50 when viewed from the left and right directions.

[0199] The first drive unit 75 generates a rotational driving force for operating the upper arm 71 and the lower arm 72. The first drive unit 75 includes a driving source 76 and a speed reducer 77.

[0200] The first drive source 76 generates a drive force for operating the upper arm 71 and the lower arm 72. As the first drive source 76, for example, a servo motor or a stepping motor can be used.

[0201] The speed reducer 77 transmits the rotational driving force of the first drive source 76 to the drive shaft 78 while reducing the speed of the rotational driving force.

[0202] The drive shaft 78 is a shaft that connects the first drive unit 75 and the drive conversion mechanism 80 . The drive shaft 78 inputs the rotational drive force from the first drive unit 75 to the drive conversion mechanism 80 .

[0203] The drive conversion mechanism 80 couples the upper arm 71 and the lower arm 72 and converts the rotational drive force input from the first drive unit 75 via the drive shaft 78 into a drive force for operating the upper arm 71 and the lower arm 72 .

[0204] The drive conversion mechanism 80 includes a first conversion mechanism 81, a second conversion mechanism 82, and a third conversion mechanism 83. The first conversion mechanism 81 includes an upper first conversion mechanism 811 and a lower first conversion mechanism 812. The second conversion mechanism 82 includes an upper second conversion mechanism 821 and a lower second conversion mechanism 822. The third conversion mechanism 83 includes an upper third conversion mechanism 831 and a lower third conversion mechanism 832. For the structures of the first conversion mechanism 81, the second conversion mechanism 82, and the third conversion mechanism 83, refer to Figure 9It should be noted that the first conversion mechanism 81, the second conversion mechanism 82, and the third conversion mechanism 83 are each symmetrical in structure. Therefore, the upper mechanism will be mainly described, and the lower mechanism will be partially omitted.

[0205] like Figure 9 As shown, the first conversion mechanism 81 includes an upper first conversion mechanism 811 and a lower first conversion mechanism 812. The upper first conversion mechanism 811 and the lower first conversion mechanism 812 convert the rotational driving force input from the first drive unit 75 via the drive shaft 78 into a vertical driving force. Each of the upper first conversion mechanism 811 and the lower first conversion mechanism 812 utilizes an eccentric cam, with a phase difference of 180 degrees. That is, when the upper first conversion mechanism 811 generates an upward driving force, the lower first conversion mechanism 812 generates a downward driving force. When the upper first conversion mechanism 811 generates a downward driving force, the lower first conversion mechanism 812 generates an upward driving force. The following description focuses primarily on the upper first conversion mechanism 811. Regarding the lower first conversion mechanism 812, components identical to those of the upper first conversion mechanism 811 are designated with the same reference numerals, and detailed description is omitted.

[0206] The upper first conversion mechanism 811 includes an eccentric cam 813 and a follower 814 .

[0207] The eccentric cam 813 includes two clamping portions 815 and a cam portion 816 . The two clamping portions 815 are disc-shaped members having the same diameter, while the cam portion 816 is a disc-shaped member having a smaller diameter than the clamping portions 815 .

[0208] The follower portion 814 includes a contact portion 817 and a follower arm 818 . The contact portion 817 is an annular member that is rotatably fitted onto the cam portion 816 of the eccentric cam 813 . The follower arm 818 is connected to the contact portion 817 .

[0209] When the contact portion 817 is fitted onto the cam portion 816, the cam portion 816 is clamped by the two clamping portions 815. The clamping portions 815 and the cam portion 816 are arranged coaxially. The drive shaft 78 is connected to a position eccentric from the center axis of the two clamping portions 815 and the cam portion 816.

[0210] When the eccentric cam 813 rotates while swinging vertically due to the rotational driving force from the drive shaft 78, the contact portion 817 rotates relative to the cam portion 816, and the driven arm 818 moves vertically. Thus, the upper first conversion mechanism 811 converts the rotational driving force input to the drive shaft 78 from the first drive unit 75 into a vertical driving force.

[0211] As described above, the lower first conversion mechanism 812 has the same mechanism as the upper first conversion mechanism 811. The eccentric cam 813 of the lower first conversion mechanism 812 is connected to the drive shaft 78 with a phase difference of 180 degrees relative to the eccentric cam 813 of the upper first conversion mechanism 811. Therefore, the lower first conversion mechanism 812 converts the rotational drive force input to the drive shaft 78 from the first drive unit 75 into a vertical drive force with an opposite phase to that of the upper first conversion mechanism 811.

[0212] The second conversion mechanism 82 includes an upper second conversion mechanism 821 and a lower second conversion mechanism 822. The upper second conversion mechanism 821 and the lower second conversion mechanism 822 convert the vertical driving force of the upper first conversion mechanism 811 and the lower first conversion mechanism 812 into a front-back driving force. The upper second conversion mechanism 821 and the lower second conversion mechanism 822 are vertically symmetrical. Therefore, the following description focuses primarily on the upper second conversion mechanism 821. Regarding the lower second conversion mechanism 822, components identical to those of the upper second conversion mechanism 821 are denoted by the same reference numerals, and detailed descriptions are omitted.

[0213] The upper second conversion mechanism 821 includes a bell crank 823 and a drive coupling portion 824 .

[0214] The bell crank 823 includes a first bell crank arm 825 and a second bell crank arm 826. The first bell crank arm 825 and the second bell crank arm 826 are integrally formed so as to be substantially orthogonal to each other with a bent portion 827 interposed therebetween.

[0215] The end of the driven arm 818 of the first conversion mechanism 81 is rotatably connected to the end of the first bell crank arm 825. One end of the drive coupling portion 824 is rotatably connected to the end of the second bell crank arm 826.

[0216] The drive coupling portion 824 is arranged in the front-to-back direction along the upper arm 71. The other end of the drive coupling portion 824 is connected to the third conversion mechanism 83. The drive coupling portion 824 has a length adjustment mechanism that changes the overall length by changing the screwing length of the threaded portion, and can adjust the length in the front-to-back direction.

[0217] The vertical driving force transmitted by the slave arm 818 of the upper first conversion mechanism 811 is converted into a front-to-back driving force by the bellcrank 823 and drive coupling 824 of the upper second conversion mechanism 821. Similarly, the vertical driving force transmitted by the slave arm 818 of the lower first conversion mechanism 812 is converted into a front-to-back driving force by the bellcrank 823 and drive coupling 824 of the lower second conversion mechanism 822. It should be noted that the support end 711 of the upper arm 71 (end 721 of the lower arm 72) is rotatably connected to the bent portion 827 of the bellcrank 823.

[0218] The third conversion mechanism 83 includes an upper third conversion mechanism 831 and a lower third conversion mechanism 832. The upper third conversion mechanism 831 and the lower third conversion mechanism 832 convert the front-back driving force of the upper second conversion mechanism 821 and the lower second conversion mechanism 822 into the vertical driving force for operating the upper arm 71 and the lower arm 72. In this embodiment, a toggle mechanism is used as the upper third conversion mechanism 831 and the lower third conversion mechanism 832.

[0219] The upper third conversion mechanism 831 and the lower third conversion mechanism 832 are vertically symmetrical. Therefore, the following description will focus on the upper third conversion mechanism 831. Regarding the lower third conversion mechanism 832, components identical to those of the upper third conversion mechanism 831 are denoted by the same reference numerals, and detailed descriptions thereof will be omitted.

[0220] The upper third conversion mechanism 831 includes a first link 833 and a second link 834. The first link 833 and the second link 834 are rotatably connected at a connection portion 835. The end of the first link 833 is rotatably supported by the device body 10. The end of the second link 834 is rotatably connected to the drive input portion 712 of the upper arm 71.

[0221] The front-to-back driving force transmitted by the drive coupling portion 824 of the upper second conversion mechanism 821 is converted into a vertical driving force by the upper third conversion mechanism 831. Similarly, the front-to-back driving force transmitted by the drive coupling portion 824 of the lower second conversion mechanism 822 is converted into a vertical driving force by the lower third conversion mechanism 832. It should be noted that by adjusting the length of the drive coupling portion 824, the operating positions of the upper third conversion mechanism 831 and the lower third conversion mechanism 832 can be adjusted, thereby adjusting the operating positions of the upper arm 71 and the lower arm 72.

[0222] Through the above structure, the drive conversion mechanism 80 can convert the rotational driving force input from the first drive part 75 via the drive shaft 78 into a driving force to operate the upper arm 71 and the lower arm 72, and utilize the working end 713 of the upper arm 71 and the working end 723 of the lower arm 72 to operate the through processing part 30 and the tightening processing part 40.

[0223] Figure 10 It is a perspective view showing the first supply unit 91 and the second supply unit 92 of the eyelet supply unit 90 . Figure 11 1 is a perspective view showing the filling portion 93 of the eyelet supply portion 90. Figure 10 and Figure 11 As shown, the eyelet supply unit 90 includes a first supply unit 91, a second supply unit 92, and a loading unit 93. A plurality of eyelet males T2 and eyelet females T1 are stored in the first supply unit 91 and the second supply unit 92. The loading unit 93 loads the eyelet males T2 and eyelet females T1 supplied from the first supply unit 91 and the second supply unit 92 into the tightening unit 40.

[0224] like Figure 10 As shown, the first supply unit 91 and the second supply unit 92 are feeders that transport the eyelet male body T2 and the eyelet female body T1 by vibration. The first supply unit 91 and the second supply unit 92 are arranged on the side of the device body 10 (refer to Figure 1 The first supply section 91 accommodates the eyelet male body T2, which is supplied to the tightening section 40 via the loading section 93. The second supply section 92 accommodates the eyelet female body T1, which is supplied to the tightening section 40 via the loading section 93.

[0225] The first supply unit 91 includes a housing 911, a vibration generator 912, and a supply passage 913. The housing 911 is a bottomed cylindrical structure with a spiral passage formed therein. The vibration generator 912 vibrates the passage within the housing 911, transporting the eyelet male bodies T2 along the passage toward the supply passage 913. The supply passage 913 is connected to the loading unit 93, and supplies the transported eyelet male bodies T2 to the loading unit 93.

[0226] Similarly, the second supply unit 92 includes a housing 921, a vibration generator 922, and a supply passage 923. The vibration generator 922 vibrates the passage within the housing 921, thereby conveying the eyelet female bodies T1 on the passage toward the supply passage 923. The supply passage 923 is connected to the loading unit 93, and the conveyed eyelet female bodies T1 are supplied to the loading unit 93.

[0227] Figure 11 1 is a perspective view showing the loading portion 93 of the eyelet supply portion 90. The loading portion 93 includes an upper loading portion 931, a lower loading portion 932, and a pushing portion 933.

[0228] The upper loading portion 931 holds the eyelet male body T2 supplied from the first supply portion 91 and loads the upper tightening portion 41 .

[0229] The lower loading section 932 holds the eyelet female body T1 supplied from the second supply section 92 and loads the lower tightening section 42 .

[0230] The pusher 933 pushes out the eyelet female body T1 and the eyelet male body T2 held in the upper loading part 931 and the lower loading part 932, and loads the upper tightening processing part 41 and the lower tightening processing part 42. The pusher 933 includes an upper push rod 934, a lower push rod 935, a connecting movable part 936, and an air cylinder 937.

[0231] The upper push rod 934 is provided so as to be movable in the front-rear direction relative to the upper loading portion 931. The upper push rod 934 pushes out the eyelet male body T2 held in the upper loading portion 931 and loads the upper tightening portion 41.

[0232] The lower push rod 935 is provided so as to be movable in the front-rear direction relative to the lower loading portion 932. The lower push rod 935 pushes out the eyelet female body T1 held in the lower loading portion 932 and loads the lower tightening portion 42.

[0233] The connecting movable portion 936 is a member that connects the upper push rod 934 and the lower push rod 935. Since the upper push rod 934 and the lower push rod 935 are connected by the connecting movable portion 936, the upper push rod 934 and the lower push rod 935 operate simultaneously.

[0234] The air cylinder 937 pushes the connecting movable portion 936 in the front-rear direction to operate the upper push rod 934 and the lower push rod 935. The air cylinder 937 is driven by a compressor (not shown).

[0235] Next, the operation of the eyelet attaching device 100 of this embodiment will be described. Figures 12 to 16 This is a left side view showing the operation of the moving section 60 and the working section 70 of the eyelet assembly device 100. First, the start switch 21 is operated to start the eyelet assembly device 100. "Manual" or "Automatic" is selected on the operation panel 22, and the manual switch 23 or the foot switch 24 is operated accordingly. By operating the manual switch 23 or the foot switch 24, the eyelet assembly operation of the eyelet assembly device 100 begins. Once the eyelet assembly operation begins, the control unit (not shown) primarily controls the driving of the moving section 60, the working section 70, and the eyelet supply unit 90, thereby performing the eyelet assembly operation.

[0236] Figure 12The state in which the support part 50 is moved to the third posture PA3 by the moving part 60 (during eyelet supply) is shown. In the third posture PA3, the support part 50 is located further back than the first posture PA1 and the second posture PA2. Figure 11 ) In the third posture PA3, the female eyelet T1 and the male eyelet T2 are loaded into the tightening processing part 40.

[0237] exist Figure 12 In the embodiment, the eccentric cam 813 of the upper first conversion mechanism 811 is at the top dead center, and the eccentric cam 813 of the lower first conversion mechanism 812 is at the bottom dead center. The postures of the upper first conversion mechanism 811 and the lower first conversion mechanism 812 at these positions are referred to as the initial posture PB1.

[0238] With the upper first conversion mechanism 811 and the lower first conversion mechanism 812 in their initial position PB1, the drive couplings 824 of the upper second conversion mechanism 821 and the lower second conversion mechanism 822 have moved forward. The forward movement of the drive couplings 824 causes the toggle mechanisms of the upper third conversion mechanism 831 and the lower third conversion mechanism 832 to bend. Consequently, the working end 713 of the upper arm 71 is positioned above the upper through-processing section 31 and the upper tightening processing section 41, while the working end 723 of the lower arm 72 is positioned below the lower through-processing section 32 and the lower tightening processing section 42.

[0239] Figure 13 The supporting portion 50 is shown in a state where it is moved to the first posture PA1 by the moving portion 60. The first posture PA1 is a posture in which the through-processing portion 30 and the processing position WP of the object W are facing each other.

[0240] exist Figure 13 In, with Figure 12 Similarly, the postures of the upper first conversion mechanism 811 and the lower first conversion mechanism 812 are unchanged from the initial posture PB1. Therefore, the working end 713 of the upper arm 71 is positioned above the upper through-processing portion 31 and the upper tightening processing portion 41, while the working end 723 of the lower arm 72 is positioned below the lower through-processing portion 32 and the lower tightening processing portion 42.

[0241] Figure 14 FIG. 1 shows a state where the support portion 50 is in the first posture PA1 and the operating portion 70 is operating the through-processing portion 30 (during hole drilling). Figure 14In the figure, the eccentric cam 813 of the upper first conversion mechanism 811 and the eccentric cam 813 of the lower first conversion mechanism 812 are rotated approximately 1 / 4 turn (approximately 90 degrees) counterclockwise from the initial position PB1. The position of the upper first conversion mechanism 811 and the lower first conversion mechanism 812 in this position is referred to as the 1 / 4 rotation position PB2.

[0242] When the upper first conversion mechanism 811 and the lower first conversion mechanism 812 are in the quarter-rotation posture PB2, the drive couplings 824 of the upper second conversion mechanism 821 and the lower second conversion mechanism 822 are moved rearward relative to their initial posture PB1. This rearward movement of the drive couplings 824 causes the toggle mechanisms of the upper third conversion mechanism 831 and the lower third conversion mechanism 832 to deform into a straight line. Consequently, while the working end 713 of the upper arm 71 presses the upper through-processing portion 31 downward, the working end 723 of the lower arm 72 presses the lower through-processing portion 32 upward. The top ends of the upper through-processing portion 31 and the lower through-processing portion 32 punch a hole at the processing position WP of the workpiece W, forming a through-processing portion (lower hole) WN.

[0243] Figure 15 The supporting portion 50 is shown as being moved to the second posture PA2 (movement to the clamping position) by the moving portion 60. The second posture PA2 is a posture in which the clamping portion 40 faces the processing position WP (through portion WN) of the object W.

[0244] In addition, Figure 15 In the figure, the eccentric cam 813 of the upper first conversion mechanism 811 and the eccentric cam 813 of the lower first conversion mechanism 812 are rotated approximately 2 / 4 of a turn (approximately 180 degrees) counterclockwise from the initial position PB1. The position of the upper first conversion mechanism 811 and the lower first conversion mechanism 812 in this position is referred to as the 2 / 4 rotation position PB3.

[0245] When the upper first conversion mechanism 811 and the lower first conversion mechanism 812 are in the 2 / 4 rotation posture PB3, the drive connection portion 824 of the upper second conversion mechanism 821 and the lower second conversion mechanism 822 is in the 1 / 4 rotation posture PB2 (see FIG. Figure 14 ) is moved further to the rear. The drive link 824 moved to the rear causes the toggle mechanism of the upper third conversion mechanism 831 and the lower third conversion mechanism 832 to move to the rear. Figure 12 、 Figure 13Therefore, the working end 713 of the upper arm 71 is located above the upper tightening processing portion 41, and the working end 723 of the lower arm 72 is located below the lower tightening processing portion 42.

[0246] Figure 16 FIG. 2 shows a state where the support portion 50 is in the second posture PA2 and the operating portion 70 operates the tightening portion 40 (during tightening). Figure 16 In the figure, the eccentric cam 813 of the upper first conversion mechanism 811 and the eccentric cam 813 of the lower first conversion mechanism 812 are rotated approximately 3 / 4 of a turn (approximately 270 degrees) counterclockwise from the initial position PB1. The position of the upper first conversion mechanism 811 and the lower first conversion mechanism 812 in this position is referred to as the 3 / 4 rotation position PB4.

[0247] When the upper first conversion mechanism 811 and the lower first conversion mechanism 812 are in the 3 / 4 rotation posture PB4, the drive couplings 824 of the upper second conversion mechanism 821 and the lower second conversion mechanism 822 are moved forward compared to the 2 / 4 rotation posture PB3. This forward movement of the drive couplings 824 causes the toggle mechanisms of the upper third conversion mechanism 831 and the lower third conversion mechanism 832 to be linearly deformed. Consequently, while the working end 713 of the upper arm 71 presses the upper tightening section 41 downward, the working end 723 of the lower arm 72 presses the lower tightening section 42 upward, allowing the eyelets T to be attached to the through-hole WN of the workpiece W from both the top ends of the upper tightening section 41 and the lower tightening section 42.

[0248] After the eyelet T is assembled, the eccentric cam 813 of the upper first conversion mechanism 811 and the eccentric cam 813 of the lower first conversion mechanism 812 are further rotated counterclockwise as shown in the figure, becoming Figure 12 The supporting portion 50 is moved to the third posture PA3 by the moving portion 60, and the loading portion 93 of the eyelet supply portion 90 loads new eyelet female bodies T1 and eyelet male bodies T2 into the tightening processing portion 40, enabling the eyelet assembly operation of the next cycle to be carried out.

[0249] Figure 17 1 and 2 are diagrams showing the operation of the stopper 95 of the eyelet attaching device 100. The stopper 95 is composed of a detector 96, a detection unit 97, and a control unit (not shown).

[0250] The detection body 96 is mounted on an actuator 961 and is movable in the vertical direction. The actuator 961 is, for example, an air cylinder. During the through-processing of the through-processing section 30 and / or the tightening of the tightening section 40, and before the upper through-processing section 31 and / or the upper tightening section 41 operate, the actuator 961 lowers the detection body 96 toward the vicinity of the processing position WP of the workpiece W. The detection body 96 has an insertion hole 962 formed therein, through which the through-processing of the through-processing section 30 and the tightening of the tightening section 40 can be performed.

[0251] The detection unit 97 detects when the detection body 96 has been lowered to a specified height. The detection unit 97 is, for example, an optical sensor, and the detection signal is input to a control unit (not shown). When the control unit receives a detection signal indicating that the detection unit 97 has detected the detection body 96, the through-processing and / or tightening process continues. In addition, when the control unit does not receive a detection signal indicating that the detection unit 97 has detected the detection body 96, the through-processing and / or tightening process in progress is stopped. For example, when a foreign object is placed under the detection body 96, the detection body 96 does not descend to the specified height. In such a case, the stop unit 95 stops the through-processing and / or tightening process in progress, thereby improving the safety of the eyelet assembly operation.

[0252] According to the eyelet assembly device 100 of the present embodiment described above, the operating portion 70 that operates the penetration processing portion 30 and the tightening processing portion 40 includes an upper arm 71 and a lower arm 72, both of which are arranged to extend from the rear toward the front. Therefore, the upper and lower arms 71, 72 can be operated using a common mechanism, simplifying the upper and lower mechanisms and enabling them to operate in coordination with appropriate timing. Furthermore, since both the upper and lower arms 71, 72 are arranged to extend from the rear toward the front, the vertical space required for their placement can be reduced, thereby miniaturizing the eyelet assembly device 100 by suppressing its vertical dimensions.

[0253] [Modification]

[0254] The eyelet assembly device 100 of the present invention is not limited to the embodiment described above. For example, the shapes of the upper arm 71 and the lower arm 72 are not limited to those of the embodiment. Furthermore, the drive conversion mechanism 80 that operates the upper arm 71 and the lower arm 72 is not limited to the structure of the embodiment.

[0255] Although the embodiments of the present invention have been described above, the above embodiments are merely examples for implementing the present invention. Therefore, the present invention is not limited to the above embodiments, and the above embodiments can be appropriately modified and implemented within the scope of the present invention.

Claims

1. A hole assembly device for assembling holes at a processing position of a processing object having an upper surface and a lower surface, wherein: have: a through-processing portion having an upper through-processing portion disposed on the upper surface side of the processing object and a lower through-processing portion disposed on the lower surface side of the processing object, and performing through-processing to form a through portion at a processing position of the processing object; a tightening processing portion having an upper tightening processing portion disposed on the upper surface side of the processing object and a lower tightening processing portion disposed on the lower surface side of the processing object, and performing a tightening process for fitting an eyelet into the through portion formed by the through processing portion; A supporting portion, supporting the through-processing portion and the tightening processing portion; a moving portion that moves the support portion so as to switch between a first posture in which the through-processing portion faces the processing position and a second posture in which the tightening processing portion faces the processing position; and The working part operates the through-processing part in the first posture and operates the tightening processing part in the second posture, The direction in which the support portion is moved so as to switch from the first posture to the second posture is defined as forward. The direction in which the support portion is moved so as to switch from the second posture to the first posture is defined as rearward, The direction perpendicular to the up-down direction and the front-back direction is defined as the left-right direction. The working part has: an upper working body which operates the upper through-processing portion in the first posture and operates the upper tightening processing portion in the second posture, and is arranged to extend from a position rearward of the support portion toward the front above the support portion when viewed from the left and right directions; and The lower working body operates the lower through-processing portion in the first posture and operates the lower tightening processing portion in the second posture, and is arranged to extend from the rear of the support portion toward the front when viewed from the left and right directions.

2. The eyelet assembly device according to claim 1, The working part also has: a first driving part, generating a rotational driving force for operating the upper working body and the lower working body; a drive conversion mechanism that connects the upper working body and the lower working body and converts the rotational drive force from the first drive unit into a drive force for operating the upper working body and the lower working body; and a drive shaft for inputting the rotational driving force from the first drive unit to the drive conversion mechanism; When viewed from the left-right direction, the drive shaft is arranged below the upper working body and above the lower working body.

3. The eyelet assembly device according to claim 2, The support portion has: an upper holding portion for holding the upper through-processing portion and the upper tightening processing portion; a lower holding portion for holding the lower through-processing portion and the lower tightening processing portion; and A holding connecting portion connects the upper holding portion and the lower holding portion, The drive shaft is arranged rearward of the holding and coupling portion when viewed from the left-right direction.

4. The eyelet assembly device according to claim 2 or 3, The drive conversion mechanism comprises: a first conversion mechanism for converting a rotational driving force input to the driving shaft from the first driving portion into a driving force in a vertical direction; a second conversion mechanism for converting the vertical driving force of the first conversion mechanism into a front-rear driving force; and The third conversion mechanism converts the front-rear direction driving force of the second conversion mechanism into a driving force for causing the upper working body and the lower working body to work in the upper and lower directions respectively, so as to cause the through processing part and the tightening processing part to work.

5. The eyelet assembly device according to claim 4, The third conversion mechanism is a toggle mechanism.

6. The eyelet assembly device according to claim 5, The second conversion mechanism has a drive connection portion arranged in the front-rear direction along the upper working body and the lower working body. The drive coupling portion can adjust the length in the front-rear direction.

7. The eyelet assembly device according to any one of claims 1 to 3, It also has a hole supplying portion for supplying holes to the tightening processing portion, The moving portion moves the support portion so as to switch between the first posture, the second posture, and a third posture, wherein the third posture is a posture in which the support portion is positioned rearward of the first posture. The eyelet supplying unit supplies the eyelet to the tightening unit in a state where the support unit is switched to the third posture.

8. The eyelet assembly device according to claim 7, The eyelet supply portion has: A first supplying portion supplies the eyelet male body to the tightening processing portion; and The second supply unit supplies the eyelet female body to the tightening processing unit. The first supply unit and the second supply unit are feeders that transport eyelet males and eyelet females by vibration.

9. The eyelet assembly device according to any one of claims 1 to 3, The moving portion includes a second driving portion that moves the support portion in the front-rear direction.

10. The eyelet assembly device according to any one of claims 1 to 3, A stop portion is also provided, the stop portion having: The detection body is lowered toward the vicinity of the processing position of the processing object during the execution of the through-processing of the through-processing portion and / or the execution of the tightening processing portion, before the upper through-processing portion operates and / or before the upper tightening processing portion operates; and The detection unit detects when the detection object descends to a specified height. When the detection unit detects the detection object, the stop unit continues the penetration process and / or the tightening process. The stopping portion stops the penetration processing and / or the tightening processing when the detection portion does not detect the detection object.

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