Component supply device, component mounter equipped with same, and component supply method
The part supply device addresses the inefficiencies in part mounting machines by using a posture correction mechanism to ensure proper orientation of parts at the pickup position, thereby improving supply efficiency and reducing errors.
Patent Information
- Application Number
- JP2021100372
- Authority / Receiving Office
- JP · JP
- Patent Type
- Patents
- Current Assignee / Owner
- Filing Date
- 2021-06-16
- Publication Date
- 2025-04-04
- Estimated Expiration
- 2041-06-16
AI Technical Summary
Existing part mounting machines face inefficiencies due to variations in the orientation of parts at the pickup position, leading to errors in part mounting and decreased supply efficiency.
A part supply device equipped with a conveying path and a posture correction mechanism, which includes a contact portion that can contact the lead of the part and is movable laterally, and a fixed guide to correct the posture of the part, ensuring proper orientation for pickup.
The solution improves the supply efficiency of parts by stabilizing their posture at the pickup position, reducing errors in part mounting, and enhancing the accuracy of lead pitch adjustment.
Smart Images

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Abstract
Description
[Technical field]
[0001] The present invention relates to a component supplying device, a component mounting machine including the same, and a component supplying method. [Background technology]
[0002] Conventionally, component mounters for mounting electronic components such as radial components on a board have been known (for example, Patent Document 1). The component mounter of Patent Document 1 includes a component supply device that supplies components, and a component mounting mechanism that mounts the components supplied from the component supply device on the board. The component supply device has a transport path for transporting the components, and transports the components on the transport path toward a predetermined pick-up position. The component mounting mechanism picks up the components at the pick-up position with a suction head, and mounts the picked-up components on the board. [Prior art documents] [Patent documents]
[0003] [Patent Document 1] Patent No. 5864294 Summary of the Invention [Problem to be solved by the invention]
[0004] However, the orientation of the component at the pickup position may vary due to issues such as component precision. If the orientation of the component at the pickup position varies, the component mounting mechanism may not be able to pick up the component properly, increasing the likelihood of an error. As a result, the efficiency of component supply may decrease.
[0005] It can be said that there is room for improvement in terms of improving the efficiency of component supply, including in the component mounter of Patent Document 1.
[0006] Therefore, an object of the present invention is to provide a component supplying device capable of solving the above problems and improving the efficiency of supplying components, a component mounting machine equipped with the same, and a component supplying method. [Means for solving the problem]
[0007] In order to achieve the above-mentioned object, the component supplying device of the present invention comprises a conveying path for conveying a component in a conveying direction toward a pick-up position, and an attitude correction mechanism for correcting the attitude of the component on the conveying path, the attitude correction mechanism comprising a movable guide having a contact portion capable of contacting a lead of the component and movable in a horizontal direction intersecting the conveying direction, and a fixed guide provided in a position opposite the movable guide across the lead of the component, the movable guide comprising a first contact portion that contacts a first lead on the rear side of the component and a second contact portion that contacts a second lead on the front side of the component, the first contact portion having a first inclined portion inclined to tilt the component forward, and the second contact portion having a second inclined portion inclined to tilt the component backward.
[0008] In addition, the component mounting machine of the present invention includes the component supply device, and a component mounting mechanism that picks up a component at the pickup position in the component supply device and inserts the leads of the picked-up component into a board to mount the component on the board.
[0009] Furthermore, the component supply method of the present invention includes a transport step of transporting a component in a transport direction toward a pick-up position, and an attitude correction step of correcting the attitude of the component, and the attitude correction step uses an attitude correction mechanism including a movable guide having a contact portion capable of contacting the lead of the component and movable in a horizontal direction intersecting the transport direction, and a fixed guide provided in a position opposing the movable guide across the lead of the component, to perform a first contact step of bringing a first contact portion of the movable guide into contact with a first lead on the rear side of the component and tilting the component forward by a first inclination portion provided on the first contact portion, and a second contact step of bringing a second contact portion of the movable guide into contact with a second lead on the front side of the component and tilting the component backward by a second inclination portion provided on the second contact portion. Effect of the Invention
[0010] According to the present invention, it is possible to improve the efficiency of supplying parts. [Brief description of the drawings]
[0011] [Figure 1] FIG. 1 is a schematic perspective view of a component mounter according to a first embodiment. [Diagram 2] FIG. 1 is a schematic perspective view showing an internal configuration of a component supplying device according to a first embodiment; [Diagram 3] FIG. 1 is a perspective view showing a component and a suction nozzle according to a first embodiment; [Figure 4] FIG. 1 is a perspective view of a posture correction mechanism in a component supplying device according to a first embodiment; [Diagram 5] FIG. 2 is a plan view of a posture correction mechanism in the component supply device of the first embodiment; [Figure 6] FIG. 13 is a schematic perspective view showing a state in which the movable guide approaches the fixed guide in the posture correction mechanism of the first embodiment; [Figure 7] FIG. 13 is a schematic perspective view showing in an exaggerated manner a state in which the movable guide is separated from the fixed guide in the posture correction mechanism of the first embodiment; [Figure 8] FIG. 1 is a schematic plan view showing a state in which a movable guide approaches a fixed guide in the posture correction mechanism of the first embodiment; [Figure 9]FIG. 1 is a schematic plan view showing an exaggerated state in which a movable guide is separated from a fixed guide in the posture correction mechanism of the first embodiment; [Figure 10A] FIG. 11 is a schematic side view for explaining a method for correcting the attitude of a component by the attitude correction mechanism of the first embodiment (when the component is tilted backward); [Figure 10B] FIG. 11 is a schematic plan view for explaining a method for correcting the attitude of a component by the attitude correction mechanism of the first embodiment (when the component is tilted backward); [Figure 10C] FIG. 11 is a schematic side view for explaining a method for correcting the attitude of a component by the attitude correction mechanism of the first embodiment (when the component is tilted backward); [Figure 10D] FIG. 11 is a schematic plan view for explaining a method for correcting the attitude of a component by the attitude correction mechanism of the first embodiment (when the component is tilted backward); [Figure 11A] FIG. 11 is a schematic side view for explaining a method for correcting the attitude of a component by the attitude correction mechanism of the first embodiment (when the component is tilted forward); [Figure 11B] FIG. 1 is a schematic plan view for explaining a method for correcting the orientation of a component by the orientation correction mechanism of the first embodiment (when the component is tilted forward); [Figure 11C] FIG. 11 is a schematic side view for explaining a method for correcting the attitude of a component by the attitude correction mechanism of the first embodiment (when the component is tilted forward); [Figure 11D] FIG. 1 is a schematic plan view for explaining a method for correcting the orientation of a component by the orientation correction mechanism of the first embodiment (when the component is tilted forward); [Figure 12] FIG. 1 is a perspective view of a posture correction mechanism (second component correction mechanism) according to the first embodiment; [Figure 13] FIG. 1 is a perspective view of a posture correction mechanism according to a first embodiment; [Figure 14] FIG. 1 is a plan view of a posture correction mechanism according to a first embodiment; [Figure 15] FIG. 2 is a perspective view showing a peripheral configuration of a first restricting portion and a second restricting portion in the posture correction mechanism according to the first embodiment; [Figure 16] FIG. 4 is a side view showing the peripheral configuration of the first and second restricting units in the posture correction mechanism of the first embodiment; [Figure 17]FIG. 4 is a side view showing the peripheral configuration of the first and second restricting units in the posture correction mechanism of the first embodiment; [Figure 18A] FIG. 1 is a side view showing a state in which a part in the posture correction mechanism of the first embodiment is not in contact with a rotating part; [Figure 18B] FIG. 1 is a side view showing a state in which a part in the posture correction mechanism of the first embodiment is in contact with a rotating part and the rotating part is rotated; [Figure 19] FIG. 11 is a plan view of the posture correction mechanism according to the first embodiment when the second restriction portion is reciprocated in the lateral direction; [Figure 20] 1 is a schematic side view showing a component carrier tape and a plurality of components according to a first embodiment; [Figure 21A] FIG. 1 is a side view showing a state after a part at a pickup position is picked up in the posture correction mechanism of the first embodiment; [Figure 21B] FIG. 1 is a perspective view showing a state after a part at a pickup position is picked up in the posture correction mechanism of the first embodiment; [Figure 22A] 21B is a side view showing a state in which the first driving source drives the output shaft forward from the state shown in FIG. 21A. [Figure 22B] FIG. 21C is a perspective view showing a state in which the first driving source drives the output shaft forward from the state shown in FIG. 21B. [Figure 23A] 22B is a side view showing a state in which the first driving source drives the output shaft rearward from the state shown in FIG. 22A. [Figure 23B] FIG. 22C is a perspective view showing a state in which the first driving source drives the output shaft rearward from the state shown in FIG. 22B. [Figure 24A] 23B is a side view showing a state in which the first driving source drives the output shaft forward from the state shown in FIG. 23A. [Figure 24B] FIG. 23C is a perspective view showing a state in which the first driving source drives the output shaft forward from the state shown in FIG. 23B. [Diagram 25] FIG. 13 is a perspective view of a lead pitch adjustment mechanism (first component correction mechanism) according to the second embodiment; [Figure 26] FIG. 11 is a plan view of the lead pitch adjustment mechanism according to the second embodiment; [Figure 27] FIG. 11 is a plan view showing a movable guide, a fixed guide, a stopper, and a component holding tape in the lead pitch adjustment mechanism of the second embodiment; [Figure 28] FIG. 11 is a perspective view showing a movable guide, a fixed guide, a stopper, and a component holding tape in the lead pitch adjustment mechanism of the second embodiment; [Figure 29] FIG. 13 is a perspective view of a movable guide in the lead pitch adjustment mechanism of the second embodiment; [Diagram 30] FIG. 11 is a plan view of a movable guide and a component holding tape in the lead pitch adjustment mechanism of the second embodiment; [Diagram 31] FIG. 13 is a perspective view showing a movable guide and a fixed guide separately in the lead pitch adjustment mechanism of the second embodiment; [Diagram 32] FIG. 11 is a perspective view showing a state in which the movable guide approaches the fixed guide in the lead pitch adjustment mechanism according to the second embodiment; [Diagram 33] FIG. 13 is a perspective view showing a stopper in the lead pitch adjustment mechanism according to the second embodiment; [Diagram 34] FIG. 11 is a perspective view showing a fixed guide, a stopper, and a component held by a component holding tape in the lead pitch adjustment mechanism of the second embodiment; [Diagram 35] FIG. 35 is a perspective view showing the configuration shown in FIG. 34 with a movable guide added. [Figure 36A] FIG. 11 is a schematic plan view for explaining a lead pitch adjustment method using a lead pitch adjustment mechanism according to a second embodiment; [Figure 36B] FIG. 11 is a schematic plan view for explaining a lead pitch adjustment method using a lead pitch adjustment mechanism according to a second embodiment; [Figure 36C] FIG. 11 is a schematic plan view for explaining a lead pitch adjustment method using a lead pitch adjustment mechanism according to a second embodiment; [Figure 36D] FIG. 11 is a schematic plan view for explaining a lead pitch adjustment method using a lead pitch adjustment mechanism according to a second embodiment; [Figure 37] FIG. 13 is a perspective view of a part correction mechanism according to a third embodiment; [Figure 38] FIG. 11 is a plan view of the part correction mechanism of the third embodiment; [Figure 39] FIG. 13 is an enlarged perspective view of a pusher and a lever member in the part correction mechanism of the third embodiment; [Diagram 40]FIG. 13 is a perspective view of a pusher, a lever member, a biasing member, and a stopper in the part correction mechanism of the third embodiment; [Diagram 41] FIG. 13 is a perspective view of a pusher, a lever member, a biasing member, and a stopper in the part correction mechanism of the third embodiment; [Diagram 42] FIG. 13 is a perspective view of a pusher, a lever member, a biasing member, and a stopper in the part correction mechanism of the third embodiment; [Figure 43A] FIG. 13 is a schematic plan view for explaining a method for correcting a part using the part correction mechanism of the third embodiment (in a non-operating state). [Figure 43B] FIG. 11 is a schematic plan view for explaining a method for correcting a part using the part correction mechanism of the third embodiment (during operation); [Diagram 44] FIG. 13 is a perspective view showing a part correction mechanism according to a modified example of the third embodiment. [Figure 45A] FIG. 13 is a schematic plan view for explaining a method for correcting a part using a part correction mechanism according to a modification of the third embodiment (in a non-operating state). [Figure 45B] FIG. 13 is a schematic plan view for explaining a method for correcting a part using a part correction mechanism according to a modification of the third embodiment (during operation). DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS
[0012] Hereinafter, exemplary embodiments of a component supply device, a component mounter including the same, and a component supply method according to the present invention will be described with reference to the accompanying drawings. The present invention is not limited to the specific configurations of the following embodiments, and configurations based on similar technical ideas are included in the present invention.
[0013] (Embodiment 1) 1 shows a component mounter 1 in a first embodiment of the present invention. The component mounter 1 is a device that mounts components 3 on a board 2. The component mounter 1 includes a base 11, a board transport mechanism 12, a plurality of component supply devices 13, a component camera 14, a component mounting mechanism 15, and a control unit 16. For ease of explanation, the left-right direction of the component mounter 1 as viewed from an operator OP is defined as the X-axis direction, the front-rear direction is defined as the Y-axis direction, and the up-down direction is defined as the Z-axis direction.
[0014] 1, the board transport mechanism 12 transports the board 2 along the X-axis direction by a pair of conveyor mechanisms 12a, and positions the board 2 at a predetermined work position near the center of the base 11. A plurality of component supply devices 13 are arranged side by side on a dolly 11D attached to the base 11.
[0015] 1, each of the component supply devices 13 has a component supply port 13K at its tip end, and continuously supplies components 3 to a pickup position 13P (FIG. 2) directly below the component supply port 13K. In the first embodiment, the components 3 supplied by the component supply device 13 are radial components with leads (radial taping components), and as shown in FIG. 3, have a cylindrical body 3B and two leads 3R extending downward from the body 3B.
[0016] 1, component camera 14 is provided in a region between board transport mechanism 12 and component supply device 13. Component camera 14 has an imaging field of view facing upward, and captures an image of component 3 picked up by component mounting mechanism 15 from below.
[0017] 1, the component mounting mechanism 15 includes a head moving mechanism 21 provided on the base 11, and a mounting head 22 moved by the head moving mechanism 21. The head moving mechanism 21 includes a fixed table 21a, a moving table 21b, and a moving plate 21c. The fixed table 21a is fixed to the base 11, and the moving table 21b is provided so as to be movable in the Y-axis direction along the fixed table 21a. The moving plate 21c is provided so as to be movable in the X-axis direction along the moving table 21b, and the mounting head 22 is attached to the moving plate 21c. The mounting head 22 is movable in the horizontal direction by the movement of the moving table 21b and the moving plate 21c.
[0018] 1, the mounting head 22 is equipped with a plurality of suction nozzles 22a. Each suction nozzle 22a extends downward, has a component suction port at its lower end, and is configured to be movable up and down along the Z-axis direction. The mounting head 22 is equipped with a suction control mechanism 22b, which is connected to a vacuum source (not shown). The suction control mechanism 22b controls the vacuum pressure supplied from the vacuum source to generate a vacuum suction force at the component suction port of each suction nozzle 22a.
[0019] The head moving mechanism 21 moves the mounting head 22 to above the component supply port 13K of the component supply device 13, then lowers the suction nozzle 22a and brings the body 3B of the component 3 into contact with the lower end of the suction nozzle 22a for vacuum suction. This picks up the component 3 supplied to the pick-up position 13P (FIGS. 2 and 3).
[0020] The control unit 16 is a member for controlling the operation of the component mounter 1. The control unit 16 is electrically connected to each component of the component mounter 1 and controls the operation of each component. The control unit 16 has, for example, a microcomputer. The control unit 16 displays information related to the operating state of the component mounter 1 on the touch panel 101 and accepts input from an operator OP.
[0021] 2, each component supplying device 13 has a base portion 31 connected to the dolly 11D (FIG. 1), and a cover portion 32 attached to the base portion 31. A component holding tape 4 is provided within an area covered by the cover portion 32 on the base portion 31. The component holding tape 4 is a tape-shaped member that holds the leads 3R of a plurality of components 3, and runs at pitches in the conveying direction A along the Y-axis direction on a conveying path TR provided inside the cover portion 32.
[0022] 2, a first driving source 34 for pitch-traveling the component carrier tape 4 is provided inside the component supplying device 13. In this embodiment, the first driving source 34 is a cylinder having an output shaft 35, and drives the output shaft 35 back and forth along the conveying direction A. The control unit 16 controls the driving of the first driving source 34.
[0023] The control unit 16 controls the first driving source 34 so as to perform the feeding operation of the component 3 intermittently, and supplies the component 3 to the pick-up position 13P intermittently.
[0024] The component supply device 13 shown in Fig. 2 is provided with at least two component correction mechanisms 40, 42 as mechanisms for correcting the attitude, position, lead pitch, etc. of the components 3 transported along the transport path TR. In Fig. 2, the schematic installation locations of the component correction mechanisms 40, 42 are indicated by dotted lines, and the specific configurations are not shown.
[0025] The first component correction mechanism 40 is a mechanism provided on the upstream side A1 of the pickup position 13P in the conveying direction A, and the second component correction mechanism 42 is a mechanism provided at the pickup position 13P on the downstream side A2 of the first component correction mechanism 40 in the conveying direction A.
[0026] By providing the component supply device 13 with the component correction mechanisms 40, 42, the attitude and position of the component 3 at the pick-up position 13P can be stabilized, improving the success rate when the component mounting mechanism 15 picks up the component 3. Furthermore, when the lead pitch of the component 3 is adjusted, the leads 3R of the component 3 picked up by the component mounting mechanism 15 can be inserted with high precision into the insertion holes of the board 2. In this way, the efficiency with which the component supply device 13 supplies the components 3 can be improved.
[0027] The configuration and operation of each of the part correction mechanisms 40 and 42 will be described below with reference to FIG. 4 and subsequent figures.
[0028] (First component correction mechanism 40: posture correction mechanism 40A) 4 and 5 are a perspective view and a plan view of the first component correction mechanism 40 in embodiment 1. The first component correction mechanism 40 in embodiment 1 is a posture correction mechanism 40A for correcting the posture of the component 3 midway along the transport path TR. In the following, the first component correction mechanism 40 will be described as posture correction mechanism 40A.
[0029] The posture correction mechanism 40A includes a movable guide 44, a fixed guide 46, a second drive source 48, and a cam mechanism 50. The movable guide 44, the fixed guide 46, the second drive source 48, and the cam mechanism 50 are all attached to the device main body 43 that forms the transport path TR.
[0030] The movable guide 44 and the fixed guide 46 are members for correcting the orientation of the component 3 in the transport direction A by sandwiching the lead 3R of the component 3 therebetween.
[0031] The movable guide 44 is a guide unit configured to be movable in a lateral direction B that is a direction intersecting the conveying direction A. The lateral direction B in the first embodiment is a horizontal direction perpendicular to the conveying direction A, and corresponds to the X-axis direction. The fixed guide 46 is disposed at a position facing the movable guide 44 across the conveying path TR, and is fixed to the device main body 43.
[0032] The area between the movable guide 44 and the fixed guide 46 includes correction positions P1 and P2 for correcting the posture of the part 3. The first correction position P1 is located on the upstream side A1, and the second correction position P2 is located on the downstream side A2. After stopping at the first correction position P1, the part 3 is fed one pitch and stops at the second correction position P2.
[0033] The movable guide 44 and the fixed guide 46 have a function of changing the inclination of the part 3 at the first correction position P1 to the forward side (downstream side A2), and further have a function of changing the inclination of the part 3 at the second correction position P2 to the rear side (upstream side A1). By changing the inclination of the part 3 to both the forward and rear sides, the part 3 can be corrected to an upright position while taking into account the springback of the lead 3R, regardless of whether the part 3 is tilted forward or backward. Details will be described later.
[0034] The second driving source 48 is a driving source for reciprocating the movable guide 44 in the lateral direction B. The second driving source 48 is provided as a driving source different from the above-mentioned first driving source 34 (FIG. 2), and has an output shaft 49 that can be driven along the conveying direction A. The second driving source 48 in the first embodiment is a cylinder that drives the output shaft 49 back and forth. A cam mechanism 50 is connected to the output shaft 49 of the second driving source 48.
[0035] The cam mechanism 50 is a mechanism for converting the driving force of the second driving source 48 along the conveying direction A into a driving force in the lateral direction B and transmitting the driving force to the movable guide 44. The cam mechanism 50 includes a cam 54 connected to the output shaft 49, and a cam follower 56 engaged with the cam 54 and connected to the movable guide 44. A cam groove 55 is formed at the tip of the cam 54, and a protrusion 58 of the cam follower 56 engages with the cam groove 55. The cam groove 55 has an oblique shape in a plan view such that the cam follower 56 moves along the lateral direction B when the cam 54 moves back and forth along the conveying direction A. The cam follower 56 is attached to the device body 43 in a state in which it is movable in the lateral direction B but its movement in the lateral direction is restricted.
[0036] According to this configuration, when the second drive source 48 drives the output shaft 49 back and forth along the conveying direction A, the cam 54 moves back and forth, and the cam follower 56 engaged with the cam 54 moves back and forth in the lateral direction B. This allows the movable guide 44 connected to the cam follower 56 to move back and forth in the lateral direction B. Figures 4 and 5 show an example of a state in which the movable guide 44 is closest to the fixed guide 46 (during operation).
[0037] Next, the configurations of the movable guide 44 and the fixed guide 46 will be described with reference to FIGS.
[0038] Figures 6 and 7 are perspective views showing the movable guide 44, the fixed guide 46, and the component holding tape 4, and Figures 8 and 9 are plan views corresponding to Figures 6 and 7, respectively. Figures 6 and 8 show a state in which the movable guide 44 is close to the fixed guide 46, and Figures 7 and 9 show an exaggerated state in which the movable guide 44 is separated from the fixed guide 46. Other components including the component 3 are not shown in Figures 6 to 9.
[0039] 7 and 9, the movable guide 44 has two contact portions 60 and 62. The contact portions 60 and 62 are portions for contacting the leads 3R of the component 3 at the correction positions P1 and P2, respectively, to change the posture of the component 3. Both of the contact portions 60 and 62 have a shape that protrudes in the lateral direction B toward the fixed guide 46 on the movable guide 44.
[0040] Recesses 64, 66 are formed at both ends of the fixed guide 46. The recesses 64, 66 are recesses for accommodating one ends of the contact portions 60, 62, respectively, when the contact portions 60, 62 approach each other.
[0041] As shown in FIGS. 7 and 9, the first contact portion 60 has a first inclined portion 60A and a first non-inclined portion 60B, and the second contact portion 62 has a second inclined portion 62A and a second non-inclined portion 62B.
[0042] Both of the inclined portions 60A and 62A are surfaces that are inclined with respect to both the conveying direction A and the lateral direction B in a plan view. Both of the non-inclined portions 60B and 62B are surfaces that extend in the lateral direction B in a plan view.
[0043] The first inclined portion 60A is a portion that comes into contact with the leads 3R of the component 3 at the first correction position P1 to change the posture of the component 3 to the front side (downstream side A2). The first inclined portion 60A comes into contact with the rear side (upstream side A1) of the two leads 3R of the component 3. The first inclined portion 60A in the first embodiment has a tapered shape that is inclined in a direction away from the fixed guide 46 as it approaches the downstream side A2 in the conveying direction A.
[0044] The second inclined portion 62A is a portion that comes into contact with the leads 3R of the component 3 at the second correction position P2 to change the posture of the component 3 to the rear side (upstream side A1). The second inclined portion 62A comes into contact with the lead 3R on the front side (downstream side A2) of the two leads 3R of the component 3. The second inclined portion 62A in the first embodiment has a tapered shape that is inclined in a direction away from the fixed guide 46 as it approaches the upstream side A1 in the conveying direction A.
[0045] The first non-inclined portion 60B is a portion that extends in the lateral direction B on the inside of the first inclined portion 60A and is connected to the first inclined portion 60A. The first non-inclined portion 60B receives the lead 3R of the component 3 after it comes into contact with the first inclined portion 60A, and restricts the movement of the lead 3R toward the upstream side A1.
[0046] The second non-inclined portion 62B is a portion that extends in the lateral direction B on the inner side of the second inclined portion 62A and is connected to the second inclined portion 62A. The second non-inclined portion 62B receives the lead 3R of the component 3 after it comes into contact with the second inclined portion 62A, and restricts the movement of the lead 3R to the downstream side A2.
[0047] The movable guide 44 further has a connection portion 68. The connection portion 68 is a portion that connects the first non-inclined portion 60B and the second non-inclined portion 62B, and extends along the conveying direction A. The connection portion 68 is in a position recessed inward from the first non-inclined portion 60B and the second non-inclined portion 62B, and faces the fixed guide 46 in the lateral direction B. The connection portion 68, together with the fixed guide 46, restricts the movement of the leads 3R of the component 3 located at the correction positions P1 and P2 in the lateral direction B. The connection portion 68 in the first embodiment has a length that includes both the first correction position P1 and the second correction position P2.
[0048] A method for correcting the inclination of the component 3 in the transport direction A using the posture correction mechanism 40A having the above-mentioned configuration will be described with reference to Figures 10A to 10D and Figures 11A to 11D. Figures 10A to 10D are diagrams for explaining the correction method when the component 3 is inclined backward, and Figures 11A to 11D are diagrams for explaining the correction method when the component 3 is inclined forward.
[0049] In the example shown in FIG. 10A and FIG. 10B, the component 3 (shown by a dotted line) conveyed to the first correction position P1 is in a state of being tilted backward (upstream side A1) with respect to an upright posture based on the vertical axis Q0. The central axis Q1 of the component 3 is inclined backward with respect to the vertical axis Q0. In this state, when the second driving source 48 (FIGS. 4 and 5) is driven to drive the movable guide 44 in the lateral direction B so as to approach the fixed guide 46, the first inclined portion 60A of the first contact portion 60 contacts the rear lead 3R of the component 3 at the first correction position P1 (first contact step). The first inclined portion 60A is inclined so as to move away from the fixed guide 46 as it approaches the downstream side A2 in the conveying direction A, and as the movable guide 44 advances, the first inclined portion 60A urges the lead 3R toward the downstream side A2 while pressing it against the fixed guide 46. As a result, the position of the component 3 is changed to the front side C1 (downstream side A2) (shown by the solid line).
[0050] 10A, the shape and position of the first inclined portion 60A are set so that the central axis Q2 of the component 3 is inclined forward with respect to the vertical axis Q0 at the first correction position P1. As will be described later, in consideration of the occurrence of springback in the leads 3R of the component 3, the first inclined portion 60A corrects the posture of the component 3 to a position tilted forward from the upright posture.
[0051] After coming into contact with the first inclined portion 60A, the lead 3R of the component 3 comes into contact with the first non-inclined portion 60B located inside the first inclined portion 60A shown in Figures 7 to 9. When springback occurs in the lead 3R of the component 3 and the lead attempts to return to the upstream side A1, the first non-inclined portion 60B receives the lead 3R and restricts the movement toward the upstream side A1.
[0052] The leads 3R of the component 3 are disposed in a region between the connection portion 68 provided on the inner side of the first non-inclined portion 60B and the fixed guide 46. This restricts movement of the leads 3R in the lateral direction B.
[0053] 10C and 10D show a state in which the movable guide 44 has been retracted from the state shown in Figures 10A and 10B. As shown in Figures 10C and 10D, the part 3 at the first correction position P1 was tilted slightly forward with respect to the vertical axis Q0 (shown by the dotted line), but when contact with the first contact portion 60 is released, springback occurs in the lead 3R of the part 3, and the lead 3R naturally returns to the upstream side A1. The tilt of the part 3 is changed to the rear side C3 (upstream side A1) (shown by the solid line).
[0054] In embodiment 1, taking into account the springback of the lead 3R, the target posture when correcting the posture of the part 3 by the first inclined portion 60A is set so that the part 3 after springback is in a generally upright posture and the central axis Q3 is generally aligned with the vertical axis Q0.
[0055] The part 3 that has been corrected to an upright position at the first correction position P1 is then sent in the conveying direction A (conveying step) and stops at the second correction position P2. The part 3 that has stopped at the second correction position P2 is shown in Figures 10A and 10B.
[0056] 10A and 10B, the component 3 stopped at the second correction position P2 is in a generally upright position (shown by the dotted line), and when the movable guide 44 is driven by the second driving source 48 in a direction approaching the fixed guide 46, the second inclined portion 62A of the second contact portion 62 comes into contact with the lead 3R on the front side of the component 3 (second contact step). This changes the position of the component 3 to the rear side C2 (upstream side A1) (shown by the solid line).
[0057] With regard to the second correction position P2, taking into consideration the springback of the lead 3R of the component 3, the target posture of the component 3 after posture correction by the second inclined portion 62A is set to a position where the central axis Q4 of the component 3 is inclined toward the rear side C2 relative to the vertical axis Q0.
[0058] 10C and 10D, the part 3, which was tilted slightly backward with respect to the vertical axis Q0 (shown by the dotted line), naturally changes the tilt of the part 3 to the forward side C4 (downstream side A2) (shown by the solid line) due to springback occurring in the lead 3R of the part 3. As in the first correction position P1, the part 3 after springback assumes a roughly upright position, and the central axis Q5 of the part 3 roughly coincides with the vertical axis Q0.
[0059] As described above, the component 3 that has been corrected to an upright position at the first correction position P1 is corrected again to an upright position at the second correction position P2. In this way, when the component 3 sent to the first correction position P1 has fallen backward (upstream side A1), the posture of the component 3 is corrected in two stages using the posture correction mechanism 40A, thereby correcting the component 3 to an upright position.
[0060] Next, a method for correcting the posture of the component 3 when it has fallen forward (downstream side B2) will be described with reference to FIGS. 11A to 11D.
[0061] In the example shown in FIG. 11A and FIG. 11B, the component 3 (shown by a solid line) conveyed to the first correction position P1 is in a state of being tilted forward (downstream A2) with respect to an upright posture based on the vertical axis Q0. The central axis Q6 of the component 3 is inclined forward with respect to the vertical axis Q0. In this state, when the second driving source 48 (FIGS. 4 and 5) is driven to drive the movable guide 44 in the lateral direction B so as to approach the fixed guide 46, if the component 3 is significantly tilted forward as shown in FIG. 11A and FIG. 11B, the first inclined portion 60A of the first contact portion 60 does not contact the lead 3R on the rear side of the component 3, and does not correct the posture of the component 3 (arrow C1). In this case, even if the movable guide 44 is retracted, no springback occurs in the lead 3R of the component 3, so that the posture of the component 3 is maintained in a state of being tilted forward as shown in FIG. 11C and FIG. 11D.
[0062] On the other hand, when the inclination of the component 3 is small, when the movable guide 44 approaches the fixed guide 46, the first inclined portion 60A comes into contact with the rear lead 3R of the component 3, as shown in Figures 10A to 10D, and corrects the posture of the component 3 to the front side C1.
[0063] The component 3, whose posture has not been corrected at the first correction position P1, is then sent to the second correction position P2. As shown in Figures 11A and 11B, the component 3 stopped at the second correction position P2 is tilted significantly forward (shown by the dotted line), and when the movable guide 44 is driven by the second driving source 48 in a direction approaching the fixed guide 46, the second inclined portion 62A of the second contact portion 62 comes into contact with the lead 3R on the forward side of the component 3. This changes the posture of the component 3 to the rear side C5 (upstream side A1) (shown by the solid line).
[0064] 10A to 10D, the target posture of the component 3 after posture correction by the second inclined portion 62A is set so that the central axis Q7 of the component 3 is inclined toward the rear side C5 from the vertical axis Q0, taking into account the springback of the lead 3R of the component 3. When the movable guide 44 is subsequently retracted, as shown in Figures 11C and 11D, springback occurs in the lead 3R of the component 3, and the posture of the component 3 is naturally changed to the forward side C6 (downstream side A2) (shown by the solid line).
[0065] As described above, even when the part 3 is tilted forward, the part 3 can be corrected to an upright posture by using the posture correction mechanism 40A. In this case, when the tilt of the part 3 is large, it is not corrected to an upright posture at the first correction position P1, but is corrected to an upright posture at the second correction position P2. When the tilt of the part 3 is small, it is corrected to an upright posture at both the first correction position P1 and the second correction position P2. In this way, the posture of the part 3 can be corrected to an upright posture, similar to when the part 3 is tilted backward.
[0066] 10A to 10D and 11A to 11D, the orientation of the part 3 is changed forward at the first correction position P1, and the orientation of the part 3 is changed backward at the second correction position P2. This makes it possible to correct the part 3 to an upright orientation regardless of whether the part 3 is tilted forward or backward.
[0067] Thereafter, the posture correction mechanism 40A corrects the posture of the components 3 that stop at the correction positions P1 and P2 in sequence. This makes it possible to uniformly correct the postures of the components 3 on their way to the pick-up position 13P, and stabilize the postures of the components 3 that reach the pick-up position 13P. In this way, it is possible to improve the success rate of the component mounting mechanism 15 picking up the components 3 at the pick-up position 13P, and it is possible to improve the efficiency with which the component supply device 13 supplies the components 3.
[0068] (Actions and Effects Related to Posture Correction Mechanism 40A) As described above, the component supply device 13 of the first embodiment includes a transport path TR along which the component 3 is transported in the transport direction A toward the pick-up position 13P, and an attitude correction mechanism 40A that corrects the attitude of the component 3 on the transport path TR. The attitude correction mechanism 40A includes a movable guide 44 having contact portions 60, 62 capable of contacting the leads 3R of the component 3 and movable in a lateral direction B intersecting the transport direction A, and a fixed guide 46 disposed in a position facing the movable guide 44 across the leads 3R of the component 3. The movable guide 44 includes a first contact portion 60 that contacts the rear lead (first lead) 3R of the component 3, and a second contact portion 62 that contacts the front lead (second lead) 3R of the component 3. The first contact portion 60 has a first inclined portion 60A inclined to tilt the component 3 toward the forward side (downstream side A2), and the second contact portion 62 has a second inclined portion 62A inclined to tilt the component 3 toward the rear side (upstream side A1).
[0069] According to this configuration, the orientation of the component 3 can be changed to the front side or the rear side by the two inclined portions 60A and 62A, so that the orientation of the component 3 can be corrected even if the orientation of the component 3 is tilted either forward or backward. This improves the efficiency with which the component supply device 13 supplies the components 3.
[0070] Furthermore, according to the component supplying device 13 of the first embodiment, the first inclined portion 60A has a shape inclined in a direction away from the fixed guide 46 as it approaches the downstream side A2 in the conveying direction A, and the second inclined portion 62A has a shape inclined in a direction away from the fixed guide 46 as it approaches the upstream side A1 in the conveying direction A. With this configuration, the two inclined portions 60A, 62A can change the posture of the component 3 toward a desired target posture.
[0071] Moreover, according to the component supplying device 13 of the first embodiment, the first contact portion 60 further has a first non-inclined portion 60B extending along the lateral direction B on the inner side of the first inclined portion 60A. Moreover, the second contact portion 62 further has a second non-inclined portion 62B extending along the lateral direction B on the inner side of the second inclined portion 62A. With this configuration, the non-inclined portions 60B, 62B can restrict the movement of the leads 3R of the component 3 in the transport direction A after contacting the inclined portions 60A, 62A, and the posture of the component 3 can be accurately corrected.
[0072] Furthermore, according to the component supplying device 13 of the first embodiment, the posture correction mechanism 40A has a connection portion 68 that extends along the conveying direction A so as to connect the first non-inclined portion 60B and the second non-inclined portion 62B. With this configuration, the lead 3R of the component 3 can be sandwiched between the connection portion 68 and the fixed guide 46 to restrict movement in the lateral direction B, and the tilt of the component 3 in the conveying direction A can be accurately corrected.
[0073] According to the component supplying device 13 of the first embodiment, the first contact portion 60 is provided on the upstream side A1 of the second contact portion 62 in the conveying direction A. According to this configuration, the two inclined portions 60A, 62A are formed to face inward, and the movable guide 44 can be made compact.
[0074] Moreover, the component supplying device 13 of the first embodiment further includes a control unit 16. The control unit 16 controls the first driving source 34 to perform the feeding operation of the components 3 intermittently, and stops each component 3 at both a first correction position P1 where the first contact portion 60 contacts the rear lead (first lead) 3R, and a second correction position P2 where the second contact portion 62 contacts the front lead (second lead) 3R. With this configuration, it is possible to perform both correction to change the posture of each component 3 to the front side and correction to change the posture to the rear side, and it is possible to correct the posture of the component 3 whether the component 3 is tilted forward or backward.
[0075] Moreover, the component supplying device 13 of the first embodiment includes a first driving source 34 for feeding the component 3 on the transport path TR, and a second driving source 48 for driving the movable guide 44 in the lateral direction B. With this configuration, the feeding operation of the component 3 and the reciprocating drive of the movable guide 44 can be performed independently of each other.
[0076] Furthermore, according to the component supplying device 13 of the first embodiment, the first driving source 34 intermittently feeds the components 3, and the second driving source 48 drives the movable guide 44 while the first driving source 34 stops feeding the components 3. This configuration makes it possible to prevent the movable guide 44 from interfering with the components 3.
[0077] Moreover, the component mounter 1 of the first embodiment includes a component supplying device 13 having an attitude correction mechanism 40A, and a component mounting mechanism 15. The component mounting mechanism 15 picks up a component 3 at a pickup position 13P in the component supplying device 13, and inserts the leads 3R of the picked-up component 3 into the board 2 to mount the component 3 on the board 2. The component mounter 1 configured in this way can achieve the same effects as the component supplying device 13 having the attitude correction mechanism 40A.
[0078] The component supply method of the first embodiment includes a conveying step of conveying the component 3 in the conveying direction A toward the pick-up position 13P, and an attitude correcting step of correcting the attitude of the component 3. The attitude correcting step includes a first contacting step and a second contacting step, using an attitude correcting mechanism 40A including a movable guide 44 and a fixed guide 46. The first contacting step includes bringing the first contacting portion 60 of the movable guide 44 into contact with the lead 3R (first lead) on the rear side of the component 3, and tilting the component 3 forward (downstream side A2) by the first inclined portion 60A provided on the first contacting portion 60. The second contacting step includes bringing the second contacting portion 62 of the movable guide 44 into contact with the lead 3R (second lead) on the front side of the component 3, and tilting the component 3 backward by the second inclined portion 62A provided on the second contacting portion 62.
[0079] According to this method, by making it possible to change the orientation of the component 3 to either the forward or backward side, it is possible to correct the orientation of the component 3 even if the orientation of the component 3 is tilted to either the forward or backward side. This makes it possible to improve the efficiency of supplying the component 3.
[0080] (Modifications Related to Posture Correction Mechanism 40A) In the first embodiment, a case where one pair of the movable guide 44 and the fixed guide 46 is provided has been described, but the present invention is not limited to this case. For example, two or more pairs of the movable guide 44 and the fixed guide 46 may be provided at intervals in the conveying direction A. In the first embodiment, a case where the posture of the part 3 after springback is corrected to be approximately upright at both the first correction position P1 and the second correction position P2 has been described, but the present invention is not limited to this case. For example, the posture of the part 3 may be corrected so that the posture of the part 3 is finally upright by correcting the tilt to a large extent toward the front side at the first correction position P1 and correcting the tilt to a small extent toward the rear side at the second correction position P2. That is, the posture of the part 3 may be corrected so that it does not approach the upright posture at the first correction position P1. In this case, another pair of the movable guide 44 and the fixed guide 46 may be provided on the downstream side B2, and in the other pair, the tilt to a large extent toward the rear side may be corrected at the first correction position and the tilt to a small extent toward the front side may be corrected at the second correction position. As a result, even if the component 3 tilts forward or backward, the posture of the component 3 can be brought closer to an upright posture by providing two sets of movable guides 44 and fixed guides 46 to correct the tilt of the component 3.
[0081] In the first embodiment, the case where one movable guide 44 integrally forms the first contact portion 60 and the second contact portion 62 has been described, but the present invention is not limited to this case and the first contact portion 60 and the second contact portion 62 may be configured as separate bodies. That is, a first movable guide on which the first contact portion 60 is formed and a second movable guide on which the second contact portion 62 is formed may be provided.
[0082] (Second part correction mechanism 42) Next, the second component correction mechanism 42 provided at the pickup position 13P of the component supply device 13 shown in FIG. 2 will be described with reference to FIGS. 12 to 24B.
[0083] 12 and 13 are perspective views of the second component correction mechanism 42 in the first embodiment, and Fig. 14 is a plan view of the second component correction mechanism 42. The second component correction mechanism 42 in the first embodiment is a posture correction mechanism 42A for correcting the posture of the component 3 at the pick-up position 13P. In the following, the second component correction mechanism 42 will be described as the posture correction mechanism 42A.
[0084] As described above, the posture of the component 3 is first corrected on the upstream side A1 of the pick-up position 13P using the posture correction mechanism 40A. The component supplying device 13 of the first embodiment further includes a posture correction mechanism 42A at the pick-up position 13P in order to hold the component 3 in an upright posture at the pick-up position 13P with higher accuracy.
[0085] As described below, in the component supply device 13 of the first embodiment, an operation for cutting the leads 3R of the component 3 at the pick-up position 13P is performed, so that the posture of the component 3 is easily distorted at the pick-up position 13P. In response to this, the component supply device 13 of the present embodiment is provided with a posture correction mechanism 42A at the pick-up position 13P, and performs the operation for cutting the leads 3R while maintaining the posture of the component 3 in an upright posture. This makes it possible to stabilize the posture of the component 3 even after the cutting operation.
[0086] 12 to 14 includes a first regulating unit 100, a second regulating unit 102, a first driving source 34, a cam mechanism 106, and a lead cutting unit 107. The first regulating unit 100, the second regulating unit 102, the first driving source 34, the cam mechanism 106, and the lead cutting unit 107 are all attached to the device main body 43 which forms the transport path TR.
[0087] The first regulating unit 100 and the second regulating unit 102 are members for regulating the movement of the component 3 at the pickup position 13P and maintaining the posture of the component 3 in an upright posture. The specific configurations of the first regulating unit 100 and the second regulating unit 102 will be described later, but the first regulating unit 100 has a function of regulating the movement of the component 3 in the lateral direction B, and the second regulating unit 102 has a function of regulating the movement of the component 3 in the front-rear direction along the conveying direction A.
[0088] By providing the first restricting portion 100 and the second restricting portion 102, the movement of the component 3 in the horizontal direction (XY axis direction) can be restricted, and the component 3 at the pick-up position 13P can be held in an upright position with high precision. This makes it possible to cut the leads 3R while maintaining the position of the component 3.
[0089] In the posture correction mechanism 42A of the first embodiment, the first regulating part 100 is fixed to the device body part 43, and the second regulating part 102 is attached to the device body part 43 in a form movable in the lateral direction B. The second regulating part 102 is driven by a first driving source 34 (FIG. 12) for performing a feeding operation of the part 3.
[0090] The first driving source 34 is a driving source for pitch-feeding the component carrier tape 4 shown in Fig. 2, and is also used as a driving source for driving the second regulating member 102 in the lateral direction B. The output shaft 35 of the first driving source 34 is connected to a cam mechanism 106.
[0091] The cam mechanism 106 is a mechanism for converting the driving force of the first driving source 34 along the conveying direction A into a driving force in the lateral direction B and transmitting it to the second regulating portion 102. The cam mechanism 106 includes a cam 108 connected to the output shaft 35, and a cam follower 110 engaged with the cam 108 and connected to the second regulating portion 102. A cam groove 109 is formed in the cam 108, and a protrusion 111 of the cam follower 110 engages with the cam groove 109. The cam groove 109 has an oblique shape in a plan view such that the cam follower 110 moves along the lateral direction B when the cam 108 moves back and forth along the conveying direction A. The cam follower 110 is attached to the device body 43 in a state in which it is movable in the lateral direction B but is restricted from moving in the lateral direction.
[0092] According to this configuration, when the first driving source 34 drives the output shaft 35 back and forth along the conveying direction A, the cam 108 moves back and forth, and the cam follower 110 engaged with the cam 108 moves back and forth in the lateral direction B. This allows the second regulating portion 102 connected to the cam follower 110 to move back and forth in the lateral direction B. The second regulating portion 102 moves back and forth between a regulating position where it regulates the movement of the component 3 and a retracted position where it is retracted from the component 3. FIGS. 12 to 14 illustrate a state (during operation) where the second regulating portion 102 is in the regulating position.
[0093] The lead cutting section 107 is a member that cuts the leads 3R of the component 3 at the pick-up position 13P. By cutting the leads 3R of the component 3 at the pick-up position 13P, the length of the leads 3R is adjusted in advance to a desired length.
[0094] Lead cutting unit 107 has fixed part 107A and movable part 107B. Fixed part 107A is a member fixed to device body 43, and movable part 107B is a member configured to be reciprocally movable in lateral direction B by a driving source (not shown). Fixed part 107A and movable part 107B each have a blade surface (not shown) for cutting lead 3R of component 3, and when movable part 107B approaches fixed part 107A, lead 3R of component 3 is sandwiched between their respective blade surfaces to cut lead 3R.
[0095] As shown in Figs. 12 to 14, a conveying chute 112 is provided on the downstream side A2 of the pick-up position 13P. The conveying chute 112 is a member for conveying the component holding tape 4 further downstream from the pick-up position 13P. Since the components 3 are picked up at the pick-up position 13P, the component holding tape 4 conveyed to the conveying chute 112 does not normally hold the components 3. As an exception, there are cases in which the components 3 are held on the component holding tape 4 conveyed to the conveying chute 112, such as when an operator OP manually conveys the component holding tape 4 to the downstream side A2 while the operation of the component supply device 13 is stopped.
[0096] Next, the specific configurations of the first restriction portion 100 and the second restriction portion 102 will be described with reference to FIGS.
[0097] FIG. 15 is a perspective view showing the peripheral configuration of the first restriction portion 100 and the second restriction portion 102, and FIGS. 16 and 17 are side views showing the peripheral configuration.
[0098] 15, the first regulating section 100 includes a first lateral guide 113 and a second lateral guide 114. The lateral guides 113 and 114 are members that sandwich the component 3 at the pickup position 13P in the lateral direction B to regulate the movement. The first lateral guide 113 is provided on the right side facing the conveying direction A, and the second lateral guide 114 is provided on the left side facing the conveying direction A. Both the lateral guides 113 and 114 are plate-shaped members that extend along the conveying direction A, and are fixed to positions on the sides of the conveying path TR so as not to interfere with the feeding operation of the component 3.
[0099] The second restricting portion 102 includes a front guide portion 116 and a rear guide portion 118. The guide portions 116, 118 are members that restrict the movement of the component 3 at the pickup position 13P by sandwiching the component 3 in the front-rear direction at the pickup position 13P. The front guide portion 116 is disposed in front of the pickup position 13P (downstream side A2), and the rear guide portion 118 is disposed behind the pickup position 13P (upstream side A1).
[0100] Both the front guide portion 116 and the rear guide portion 118 are connected to the above-mentioned cam follower 110 and move integrally along the lateral direction B. Similar to FIGS. 12 to 14, FIGS. 15 to 17 illustrate a state in which the front guide portion 116 and the rear guide portion 118 are in restricting positions where they restrict the movement of the component 3.
[0101] The front guide portion 116 of the first embodiment has an L-shape in a plan view. The front guide portion 116 extends to the downstream side A2 in the conveying direction A, then bends at a substantially right angle, and extends along the lateral direction B. The tip side portion of the front guide portion 116 extending along the lateral direction B is disposed so as to block the front of the component 3, and restricts the movement of the component 3 towards the downstream side A2.
[0102] The rear guide portion 118 of the first embodiment has a so-called “hinge” structure. The rear guide portion 118 includes a fixed portion 120, a rotating portion 122, and a pressing portion .
[0103] The fixed part 120 is a plate-like member fixed to the cam follower 110. The rotating part 122 is a plate-like member that is connected to the fixed part 120 and is configured to be rotatable about a rotation axis X1. The rotating part 122 has a function of preventing interference with the part 3 by rotating about the rotation axis X1 when it comes into contact with the part 3 advancing along the conveying direction A.
[0104] The pressing portion 124 is a pressing member that presses the rotating portion 122 in a rotational direction opposite to the rotational force that tends to rotate the rotating portion 122 forward (downstream side A2). By providing the pressing portion 124, it is possible to prevent the rotating portion 122 from rotating forcefully forward due to contact with the component 3, and to stabilize the operation of the rotating portion 122.
[0105] Here, the function and operation of rear guide part 118 will be described with reference to Figures 18A and 18B. Figure 18A is a side view showing a state in which part 3 is not in contact with rotating part 122, and Figure 18B is a side view showing a state in which part 3 is in contact with rotating part 122 and rotating part 122 has rotated.
[0106] 18A, the rotating part 122 is in a position extending vertically downward when the part 3 is not in contact with it. At this time, the tip 110A of the cam follower 110 is in contact with the base portion of the rotating part 122, so that the movement of the rotating part 122 is restricted so that the rotating part 122 cannot rotate toward the upstream side A1 (arrow R1). Although the rotating part 122 can rotate toward the downstream side A2 (arrow R2), the pressing part 124 is in contact with the rotating part 122 and biases it in the opposite direction (arrow R3), so resistance is generated when the rotating part 122 rotates.
[0107] 18B, when the component 3 is conveyed in the conveying direction A and comes into contact with the rotating part 122, the rotating part 122 rotates about the rotation axis X1 toward the downstream side A2 (arrow R2) due to contact with the side surface of the component 3. The rotation of the rotating part 122 makes it possible to prevent interference with the component 3.
[0108] When rotating part 122 rotates, pressing part 124 biases rotating part 122 in the opposite direction (arrow R3), so rotating part 122 does not rotate forcefully, but rotates gently while maintaining contact with the side surface of component 3. As a result, rotating part 122 does not collide with component 3 (not shown) in front of component 3 shown in FIG. 18B, and rotates only within a necessary range, stabilizing the operation of rotating part 122.
[0109] The operation of the posture correction mechanism 42A having the above-mentioned configuration will be described with reference to FIG. 19 and subsequent figures.
[0110] Fig. 19 is a plan view of the second regulating portion 102 reciprocatingly driven in the lateral direction B by using the first driving source 34 having the output shaft 35. In Fig. 19, (a) corresponds to a state in which the second regulating portion 102 is in the regulating position, and (b) corresponds to a state in which the second regulating portion 102 is in the retracted position.
[0111] 19(a), when the first driving source 34 drives the output shaft 35 to move the cam 108 of the cam mechanism 106 toward the downstream side A2, the protrusion 111 of the cam follower 110 moves in the lateral direction B along the cam groove 109, and the cam follower 110 moves to the left side of the paper. The second restricting portion 102 connected to the cam follower 110 also moves toward the left side of the paper, and moves to a restricting position where it restricts the movement of the component 3 at the pickup position 13P.
[0112] 19(b), when the first driving source 34 drives the output shaft 35 to move the cam 108 of the cam mechanism 106 to the upstream side A1, the protrusion 111 of the cam follower 110 moves in the lateral direction B along the cam groove 109, and the cam follower 110 moves toward the right side of the paper. The second restriction portion 102 connected to the cam follower 110 also moves toward the right side of the paper, and moves to a retracted position away from the component 3 at the pickup position 13P.
[0113] The first driving source 34 drives the output shaft 35 in the front-rear direction at a predetermined cycle, thereby alternately switching between the state shown in (a) and the state shown in (b). The second restricting portion 102 reciprocates between the restricting position and the retracted position, selectively restricting the movement of the component 3 in the front-rear direction.
[0114] Particularly in the first embodiment, the pitch feed of the component 3 and the drive of the second regulating portion 102 are performed using a common first drive source 34. For this reason, by providing a rotating portion 122 on the rear guide portion 118 and preventing interference between the feed operation of the component 3 and the rear guide portion 118, it becomes possible to perform the pitch feed of the component 3 and the drive of the second regulating portion 102 in parallel.
[0115] Here, a configuration related to the feeding operation of the components 3 will be described with reference to Fig. 20. Fig. 20 is a schematic side view showing the component carrier tape 4 and a plurality of components 3 held by the component carrier tape 4.
[0116] 20, the component carrier tape 4 has a plurality of feed holes 126 for pitch feeding. A claw portion (not shown) connected to the first driving source 34 engages with the feed holes 126.
[0117] When the first driving source 34 drives the claw portion toward the downstream side A2, the claw portion is engaged with the feed hole 126, and the component holding tape 4 is advanced one pitch. On the other hand, when the first driving source 34 drives the claw portion toward the upstream side A1, the engagement between the claw portion and the feed hole 126 is released, and the component holding tape 4 does not move backward but remains stationary. By causing the first driving source 34 to reciprocate the claw portion at a predetermined cycle, the component holding tape 4 is fed a pitch along the conveying direction A, and the feeding operation of the components 3 is performed intermittently.
[0118] In particular, in the first embodiment, large radial components are used as the components 3. As shown in Fig. 20, the pitch Y2 of the components 3 is set longer than the pitch Y1 of the feed holes 126 (twice as long in the first embodiment). When the first driving source 34 performs two reciprocating motions, the component holding tape 4 is fed to the downstream side A2 by two pitches (Y1 x 2) of the feed holes 126, and the components 3 are fed to the downstream side A2 by one pitch (Y2).
[0119] When the first driving source 34 is driven to reciprocate twice, the component 3 is fed one pitch, whereas the reciprocating motion of the second regulating portion 102 by the same first driving source 34 reciprocates twice in the horizontal direction B. In other words, when the component 3 is fed 0.5 pitch, the second regulating portion 102 reciprocates once in the horizontal direction B, so that the rear guide portion 118 of the second regulating portion 102 comes into contact with the component 3 located in front of the pick-up position 13P.
[0120] In response to this, the posture correction mechanism 42A of the first embodiment is provided with the above-mentioned rotating part 122 on the rear guide part 118 so that the rotating part 122 can rotate when it comes into contact with the side of the part 3 located in front of the pick-up position 13P. As a result, when the same first driving source 34 is used to perform the feeding operation of the part 3 and the reciprocating operation of the second regulating part 102, both operations can be performed in parallel while preventing interference between the part 3 and the second regulating part 102.
[0121] A specific operation of the posture correction mechanism 42A having the above-mentioned configuration will be described with reference to FIGS. 21A to 24B.
[0122] 21A and 21B are a side view and a perspective view showing the state after the component 3 at the pick-up position 13P has been picked up.
[0123] 21A and 21B, the first regulating unit 100 has already been regulating the movement of the component 3 located behind the pickup position 13P in the lateral direction B. Meanwhile, the second regulating unit 102 is in the retracted position and is not regulating the movement of the component 3.
[0124] When the first driving source 34 drives the output shaft 35 forward (to the downstream side A2) from the state shown in FIGS. 21A and 21B, the state shown in FIGS. 22A and 22B is obtained.
[0125] As shown in FIGS. 22A and 22B, the component 3 is sent 0.5 pitches to the downstream side A2 (transport step), and the second regulating portion 102 is moved in the lateral direction B so as to approach the transport path TR.
[0126] Since the component 3 is located in front of the pick-up position 13P, when the rotating part 122 of the second restricting part 102 moves in the lateral direction B, it comes into contact with the side of the component 3. The contact with the component 3 causes the rotating part 122 to rotate toward the downstream side A2 (arrow R2 in FIG. 22A). This prevents interference between the rear guide part 118 and the component 3. At this time, the rotating part 122 rotates while being biased in the opposite direction by the pressing part 124, so it does not rotate forcefully toward the downstream side A2, but rotates gently while maintaining contact with the side of the component 3. This makes it possible to stabilize the rotational operation of the rotating part 122.
[0127] In this way, even if the part 3 advances 0.5 pitches with one reciprocating drive of the first drive source 34, the feeding operation of the part 3 and the reciprocating movement of the second regulating part 102 can be executed in parallel while preventing interference between the rear guide part 118 and the part 3.
[0128] When the first driving source 34 drives the output shaft 35 rearward (upstream side A1) from the state shown in FIGS. 22A and 22B, the state shown in FIGS. 23A and 23B is obtained.
[0129] 23A and 23B, the component 3 remains stationary and does not move, and the second restricting part 102 moves in the lateral direction B away from the transport path TR to the retracted position. The rotating part 122, which has been released from contact with the component 3, returns to the state in which it extends vertically downward.
[0130] When the first driving source 34 drives the output shaft 35 forward (to the downstream side A2) from the state shown in FIGS. 23A and 23B, the state shown in FIGS. 24A and 24B is obtained.
[0131] 24A and 24B, the component 3 is sent 0.5 pitches downstream A2 and reaches the pick-up position 13P. The second restricting part 102 moves in the lateral direction B to approach the transport path TR, but since the component 3 has moved to the pick-up position 13P, the rotating part 122 does not come into contact with the component 3. The rotating part 122 enters the area between the component 3 at the pick-up position 13P and the component 3 in front of it.
[0132] 18A, the rotation of rotating part 122 toward upstream side A1 is restricted by tip end 110A of cam follower 110, and the movement of component 3 toward upstream side A1 is restricted. As a result, component 3 at pickup position 13P is sandwiched between front guide part 116 and rear guide part 118 from the front and rear, and the movement in the front-rear direction is restricted.
[0133] 24A and 24B, the first restricting unit 100 restricts the movement of the component 3 at the pickup position 13P in the lateral direction B (first restricting step), and the second restricting unit 102 restricts the movement in the front-rear direction along the conveying direction A (second restricting step). This restricts the movement of the component 3 in the horizontal direction, and allows the component 3 to be held in an upright position with high precision.
[0134] Thereafter, the leads 3R of the component 3 at the pickup position 13P are cut by the lead cutting part 107. Specifically, the movable part 107B approaches the fixed part 107A to sandwich the leads 3R of the component 3 therebetween, thereby cutting the leads 3R.
[0135] The cutting operation of the lead 3R by the lead cutting part 107 is performed in a state in which the first restricting part 100 and the second restricting part 102 restrict the horizontal movement of the component 3. This makes it possible to prevent the position of the component 3 from being distorted by the cutting operation of the lead 3R, and to precisely maintain the upright position of the component 3.
[0136] The component 3 with the leads 3R cut off is picked up by the component mounting mechanism 15 shown in Fig. 1. The component mounting mechanism 15 lowers the mounting head 22 located above the pickup position 13P, and brings the suction nozzle 22a of the mounting head 22 into contact with the upper surface of the body 3B of the component 3 to pick up the component 3. As a result, the component 3 at the pickup position 13P is picked up, and the component supply device 13 supplies the component 3.
[0137] After picking up the component 3, the component mounting mechanism 15 inserts the leads 3R of the component 3 into the insertion holes of the board 2 to mount the component 3 on the board 2.
[0138] (Action and effect of posture correction mechanism 42A) As described above, the component supplying device 13 of the first embodiment includes the transport path TR for transporting the component 3 in the transport direction A toward the pick-up position 13P, the first driving source 34 for feeding the component 3 on the transport path TR, and the posture correction mechanism 42A for correcting the posture of the component 3 at the pick-up position 13P. The posture correction mechanism 42A includes a first regulating unit 100 for regulating the movement of the component 3 at the pick-up position 13P in the lateral direction B intersecting the transport direction A, and a second regulating unit 102 for regulating the movement in the front-rear direction along the transport direction A.
[0139] According to this configuration, the posture of the component 3 at the pickup position 13P is corrected using the posture correction mechanism 42A, thereby improving the success rate of picking up the component 3. This improves the efficiency with which the component supply device 13 supplies the component 3.
[0140] Furthermore, according to the component supplying device 13 of the first embodiment, the second regulating portion 102 includes a front guide portion 116 located on the downstream side A2 of the pick-up position 13P, and a rear guide portion 118 located on the upstream side A1 of the pick-up position 13P. With this configuration, by providing the guide portions 116, 118 in front of and behind the component 3 at the pick-up position 13P, movement in the front-rear direction can be regulated with high accuracy.
[0141] Furthermore, according to the component supplying device 13 of the first embodiment, the second restricting part 102 is configured to be movable along the lateral direction B, and reciprocates between a restricting position where the movement of the component 3 at the pickup position 13P is restricted, and a retreated position. With this configuration, by making the second restricting part 102 movable, the movement restricting operation of the component 3 by the second restricting part 102 can be performed in parallel with the feeding operation of the component 3.
[0142] Furthermore, according to the component supply device 13 of the first embodiment, the rear guide unit 118 has a rotating unit 122 configured to be rotatable in response to contact with a side surface of the component 3 when the rear guide unit 118 moves in a direction approaching the component 3 in front of the pick-up position 13P. With this configuration, even when the rear guide unit 118 comes into contact with the component 3 in front of the pick-up position 13P, the rotating unit 122 of the rear guide unit 118 rotates, thereby preventing interference with the component 3.
[0143] Moreover, according to the component supplying device 13 of the first embodiment, the second regulating portion 102 is connected to the first driving source 34, and is driven in the lateral direction B in accordance with the feeding operation of the component 3 by the first driving source 34. With this configuration, the feeding operation of the component 3 and the moving operation of the second regulating portion 102 can be performed by using the common first driving source 34.
[0144] According to the component supplying device 13 of the first embodiment, the posture correction mechanism 42A further includes a cam mechanism 106 that converts the driving force of the first driving source 34 in the front-rear direction into a driving force in the lateral direction B and transmits the driving force to the second regulating portion 102. According to such a configuration, the driving force of the first driving source 34 can be converted and transmitted to the second regulating portion 102 using a simple mechanism.
[0145] Furthermore, according to the component supplying device 13 of the first embodiment, the components 3 are radial taped components, and the transport path TR transports the component holding tape 4 holding the multiple components 3 in the transport direction A. With this configuration, radial components are prone to variations in inclination in the transport direction A, particularly when the component precision is poor, but by restricting the movement in the front-rear direction with the second restricting portion 102, it is possible to achieve a significant effect of correcting the posture.
[0146] According to the component supplying device 13 of the first embodiment, the first regulating section 100 includes a first lateral guide 113 located on one side in the lateral direction B with respect to the component 3 at the pick-up position 13P, and a second lateral guide 114 located on the other side. With this configuration, the movement of the component 3 in the lateral direction B can be regulated with a simple mechanism.
[0147] Moreover, component supply device 13 of embodiment 1 further includes lead cutting unit 107 that cuts leads 3R of component 3 at pick-up position 13P. With this configuration, even when cutting leads 3R of component 3 at pick-up position 13P, the cutting operation can be performed while the horizontal movement of component 3 is restricted by first restricting unit 100 and second restricting unit 102, so that the posture of component 3 can be accurately maintained even after the leads are cut.
[0148] Moreover, the component mounter 1 of the first embodiment includes a component supplying device 13 having an attitude correction mechanism 42A, and a component mounting mechanism 15. The component mounting mechanism 15 picks up a component 3 at a pickup position 13P in the component supplying device 13, and inserts the leads 3R of the picked-up component 3 into the board 2 to mount the component 3 on the board 2. The component mounter 1 configured in this way can achieve the same effects as the component supplying device 13 having the attitude correction mechanism 42A.
[0149] The component supply method of the first embodiment also includes a transport step of transporting the component 3 in the transport direction A toward the pick-up position 13P, and an attitude correction step of correcting the attitude of the component 3 at the pick-up position 13P. In the attitude correction step, a first restriction step of restricting movement of the component 3 at the pick-up position 13P in a lateral direction B intersecting the transport direction A and a second restriction step of restricting movement in the front-rear direction along the transport direction A are executed.
[0150] According to this method, by correcting the attitude of the component 3 at the pick-up position 13P, the success rate of picking up the component 3 can be improved, and the efficiency of supplying the component 3 can be improved.
[0151] (Modifications Related to Posture Correction Mechanism 42A) In the first embodiment, as shown in FIG. 20, the pitch Y2 of the components 3 corresponds to twice the pitch Y1 of the feed holes 126 of the component holder tape 4, and the components 3 are fed by one pitch when the first driving source 34 drives the components 3 two times. However, the present invention is not limited to this. The relationship between the pitch Y1 of the feed holes 126 and the pitch Y2 of the components 3 may be changed as appropriate, for example, when the first driving source 34 drives the components 3 one time or when the first driving source 34 drives the components 3 three times or more. Even in such a case, according to the posture correction mechanism 42A of the first embodiment, the second restricting portion 102 also moves one time when the first driving source 34 drives one time, so that the movement of the components 3 that arrive at the pick-up position 13P can be restricted every time. In addition, the rotating portion 122 is provided on the rear guide portion 118, so that interference with the components 3 located in front of the pick-up position 13P can be prevented.
[0152] (Embodiment 2) A component supplying device according to a second embodiment of the present invention will be described below. Note that in the second embodiment, differences from the first embodiment will be mainly described, and descriptions overlapping with the first embodiment will be omitted.
[0153] In the first embodiment, a posture correction mechanism 40A (FIGS. 4 to 11D) that corrects the posture of the component 3 is provided as the first component correction mechanism 40, but in the second embodiment, a lead pitch adjustment mechanism 40B that adjusts the pitch of two leads 3R of the component 3 is provided as the first component correction mechanism 40. In the following, the first component correction mechanism 40 will be described as the lead pitch adjustment mechanism 40B.
[0154] 25 and 26 are a perspective view and a plan view, respectively, of a lead pitch adjustment mechanism 40B according to the second embodiment.
[0155] The lead pitch adjustment mechanism 40B includes a movable guide 200, a fixed guide 202, a stopper 204, a second driving source 206, and a cam mechanism 208. The movable guide 200, the fixed guide 202, the stopper 204, the second driving source 206, and the cam mechanism 208 are all attached to the device main body 43 that forms the transport path TR.
[0156] The movable guide 200 is a guide unit configured to be movable in the lateral direction B. The movable guide 200 has a function of changing the pitch of the leads 3R by coming into contact with the two leads 3R of the component 3 stopped at a predetermined pitch adjustment position P3 on the transport path TR. Note that in Fig. 25 and subsequent figures, a case is shown as an example in which the body 3B of the component 3 is rectangular parallelepiped shaped.
[0157] Fixed guide 202 is a guide section disposed at a position facing movable guide 200 across transport path TR, and is fixed to device main body 43. Fixed guide 202 is provided at a position facing body 3B and leads 3R of component 3 at pitch adjustment position P3, and has a function of maintaining the posture of component 3 when movable guide 200 comes into contact with leads 3R of component 3, etc.
[0158] The stopper 204 is a member for maintaining the posture of the component 3 at the pitch adjustment position P3 together with the fixed guide 202. The stopper 204 is disposed at a position facing the fixed guide 202 across the transport path TR, and is fixed to the device main body 43. When the body 3B of the component 3 is disposed between the stopper 204 and the fixed guide 202, movement of the body 3B in the lateral direction B is restricted.
[0159] The movable guide 200 and the stopper 204 are provided on the same side of the transport path TR but at different height positions. The movable guide 200 is disposed at the same height position as the leads 3R of the component 3, and the stopper 204 is disposed at the same height position as the body 3B of the component 3. The fixed guide 202 is disposed at a height position overlapping both the leads 3R and the body 3B of the component 3.
[0160] The second driving source 206 is a driving source for reciprocating the movable guide 200 in the lateral direction B. The second driving source 206 is provided as a driving source different from the above-mentioned first driving source 34 (FIG. 2), and has an output shaft 207 that can be driven along the conveying direction A. The second driving source 206 of the second embodiment is a cylinder that drives the output shaft 207 back and forth. A cam mechanism 208 is connected to the output shaft 207 of the second driving source 206.
[0161] The cam mechanism 208 is a mechanism for converting the driving force of the second driving source 206 along the conveying direction A into a driving force in the lateral direction B and transmitting it to the movable guide 200. The cam mechanism 208 includes a cam 210 connected to the output shaft 207, and a cam follower 212 engaged with the cam 210 and connected to the movable guide 200. A cam groove 211 is formed at the tip of the cam 210, and a protrusion 213 of the cam follower 212 engages with the cam groove 211. The cam groove 211 has an oblique shape in a plan view such that the cam follower 212 moves along the lateral direction B when the cam 210 moves back and forth along the conveying direction A. The cam follower 212 is attached to the device body 43 in a state in which it is movable in the lateral direction B but its movement in the lateral direction is restricted.
[0162] According to this configuration, when the second driving source 206 drives the output shaft 207 back and forth along the conveying direction A, the cam 210 moves back and forth, and the cam follower 212 engaged with the cam 210 moves back and forth in the lateral direction B. This allows the movable part 200 connected to the cam follower 212 to move back and forth in the lateral direction B. Figures 25 and 26 show an example of a state in which the movable guide 200 is closest to the fixed guide 202.
[0163] Next, the configurations of the movable guide 200, the fixed guide 202, and the stopper 204 will be described with reference to FIGS.
[0164] 27 and 28 are respectively a plan view and a perspective view showing the movable guide 200, the fixed guide 202, the stopper 204 and the component carrier tape 4. Fig. 29 and Fig. 30 are respectively a plan view and a perspective view showing the movable guide 200 and the component carrier tape 4.
[0165] 27 to 30, the movable guide 200 has two contact portions 214, 216. The contact portions 214, 216 each have a function of contacting the leads 3R (shown by dotted lines in FIG. 27) of the component 3 at the pitch adjustment position P3 to adjust the pitch of the leads 3R. The contact portions 214, 216 of the second embodiment have a function of narrowing the pitch between the two leads 3R of the component 3.
[0166] 29 and 30, each of the contact portions 214, 216 has a shape that protrudes in the lateral direction B toward the fixed guide 202 in the movable guide 200. The first contact portion 214 has a first inclined portion 214A and a first non-inclined portion 214B, and the second contact portion 216 has a second inclined portion 216A and a second non-inclined portion 216B.
[0167] Both inclined portions 214A and 216A are surfaces that are inclined with respect to both the transport direction A and the lateral direction B in a plan view. The inclined portions 214A and 216A are inclined in opposite directions to each other in a plan view. On the other hand, the non-inclined portions 214B and 216B are surfaces that extend in the lateral direction B in a plan view.
[0168] The first inclined portion 214A comes into contact with the rear (upstream side A1) lead 3R of the component 3 located at the pitch adjustment position P3. The first inclined portion 214A of the first embodiment has a tapered shape that is inclined in a direction away from the fixed guide 202 as it approaches the downstream side A2 in the conveying direction A.
[0169] The second inclined portion 216A comes into contact with the lead 3R on the front side (downstream side A2) of the two leads 3R of the component 3 located at the pitch adjustment position P3. The second inclined portion 216A of the first embodiment has a tapered shape that is inclined in a direction away from the fixed guide 202 as it approaches the upstream side A1 in the conveying direction A.
[0170] The first non-inclined portion 214B is a portion that extends in the lateral direction B on the inner side of the first inclined portion 214A and is connected to the first inclined portion 214A. The first non-inclined portion 214B receives the lead 3R of the component 3 after it comes into contact with the first inclined portion 214A, and restricts the movement of the lead 3R toward the upstream side A1.
[0171] The second non-inclined portion 216B is a portion that extends in the lateral direction B on the inner side of the second inclined portion 216A and is connected to the second inclined portion 216A. The second non-inclined portion 216B receives the lead 3R of the component 3 after it comes into contact with the second inclined portion 216A, and restricts the movement of the lead 3R to the downstream side A2.
[0172] By providing the non-inclined portions 214B and 216B, the pitch of the leads 3R narrowed by the inclined portions 214A and 216A can be restricted so as not to widen.
[0173] 29 and 30, the distance D1 between the first non-inclined portion 214B and the second non-inclined portion 216B is set based on the desired pitch length of the lead 3R. In the first embodiment, in consideration of the springback of the lead 3R, the distance D1 between the non-inclined portions 214B and 216B is set to be shorter than the desired pitch length of the lead 3R.
[0174] The movable guide 200 further has a connecting portion 218. The connecting portion 218 is a portion that connects the first non-inclined portion 214B and the second non-inclined portion 216B, and extends along the conveying direction A. The connecting portion 218 is provided at a position recessed inward relative to the first non-inclined portion 214B and the second non-inclined portion 216B.
[0175] The position (depth) of the connection portion 218 is set at a position such that when the movable guide 200 contacts the lead 3R of the component 3, the lead 3R and the connection portion 218 face each other in the lateral direction B without contacting each other. The lead 3R of the component 3 only contacts the inclined portions 214A, 216A and the non-inclined portions 214B, 216B.
[0176] 31 to 35 are perspective views showing the peripheral configuration of the movable guide 200 and the fixed guide 202. FIG.
[0177] Fig. 31 is a diagram showing the movable guide 200 and the fixed guide 202 separately, and Fig. 32 is a diagram showing the movable guide 200 approaching the fixed guide 202. Fig. 33 is a diagram showing the stopper 204 separately, Fig. 34 is a diagram showing the fixed guide 202, the stopper 204, and the components 3 held by the component holding tape 4, and Fig. 35 is a diagram in which the movable guide 200 is added to the configuration shown in Fig. 34.
[0178] As shown in FIG. 31, the fixed guide 202 has an opposing surface 220 and two recesses 224 and 226.
[0179] Opposing surface 220 is a surface facing opposing surface 225 of stopper 204 shown in Fig. 33. By sandwiching body 3B of component 3 between opposing surface 220 and opposing surface 225, movement of component 3 located at pitch adjustment position P3 in lateral direction B is restricted, as shown in Figs.
[0180] The recesses 224 and 226 are recesses for receiving the contact portions 214 and 216 of the movable guide 200, respectively. As shown in Fig. 32, when the movable guide 200 approaches the fixed guide 202, the recesses 224 and 226 accommodate one ends of the contact portions 214 and 216, respectively, thereby preventing interference between the movable guide 200 and the fixed guide 202.
[0181] 33, the stopper 204 has an opposing surface 225. The opposing surface 225, together with the opposing surface 220 of the fixed guide 202 described above, has a function of sandwiching the body 3B of the component 3, and is provided at the same height position as the body 3B of the component 3.
[0182] A method for adjusting the pitch of the leads 3R of the component 3 using the lead pitch adjustment mechanism 40B having the above-mentioned configuration will be described with reference to Figures 36A to 36D. Figures 36A to 36D are plan views for explaining the method for adjusting the pitch of the leads 3R using the lead pitch adjustment mechanism 40B.
[0183] As shown in Fig. 36A, the component carrier tape 4 (not shown) is fed in the transport direction A (transport step), and a new component 3 stops at the pitch adjustment position P3. As the component 3 stops, the movable guide 200 is driven in the lateral direction B (arrow F1), and the contact portions 214, 216 move forward toward the two leads 3R of the component 3 located at the pitch adjustment position P3. In the example shown in Fig. 36A, the pitch between the two leads 3R is length D2.
[0184] 36B, when the movable guide 200 advances, the first contact portion 214 comes into contact with the rear lead 3R of the component 3, and the second contact portion 216 comes into contact with the front lead 3R of the component 3 (first contact step). The location of the first contact portion 214 that starts contacting the lead 3R of the component 3 is the first inclined portion 214A, and the location of the second contact portion 216 that starts contacting the lead 3R of the component 3 is the second inclined portion 216A.
[0185] Both of the inclined portions 214A and 216A have a tapered shape that inclines inward as it approaches the connecting portion 218. Therefore, as the movable guide 200 advances (arrow F2), the two leads 3R are pressed in a direction approaching each other (arrow F3). This causes the pitch of the leads 3R to gradually narrow.
[0186] When the movable guide 200 advances further, the two leads 3R pass the inclined portions 214A, 216A and come into contact with the non-inclined portions 214B, 216B (second contact step) as shown in Fig. 36C. Since the non-inclined portions 214B, 216B have a shape that keeps the distance constant in the conveying direction A, a pressing force is applied to the two leads 3R in a direction narrowing the pitch (arrow F4) even while the movable guide 200 advances. At this time, the pitch of the leads 3R is temporarily narrowed to the distance D1 between the non-inclined portions 214B, 216B described above.
[0187] Component 3 is also pressed in the lateral direction B by contact with the inclined portions 214A and 216A. However, as shown in FIGS. 36B and 36C, the body 3B of component 3 abuts against the fixed guide 202. Since a stopper 204 is also provided on the opposite side of the fixed guide 202, the pitch adjustment of the lead 3R of component 3 at the pitch adjustment position P3 is performed while the movement of component 3 in the lateral direction B is restricted.
[0188] When the movable guide 200 is retracted in the lateral direction B from the state shown in FIG. 36C (arrow F5), as shown in FIG. 36D, the movable guide 200 moves to the retracted position, and the contact between the contact portions 214 and 216 and the lead 3R of component 3 is released.
[0189] Since the lead 3R of component 3 is made of an elastic material, when the contact with the contact portions 214 and 216 is released, springback occurs in the lead 3R. As a result, the pitch of the lead 3R widens to a length D3 (>D1, <D2). Considering such springback, the interval D1 between the non-inclined portions 214B and 216B is set shorter than the desired length D3, and the pitch of the lead 3R after springback can be changed to the desired length D3.
[0190] Thereafter, the component holding tape 4 is fed in the conveying direction A, and the next component 3 stops at the pitch adjustment position P3. By reciprocating the movable guide 200 also for the next component 3, the pitch of the lead 3R can be adjusted to a desired length. In this way, the pitch adjustment of the lead 3R can be performed for each of the components 3 conveyed along the conveying path TR.
[0191] Each component 3 is conveyed toward the pickup position 13P with the lead 3R having a desired pitch. As a result, when the component mounting mechanism 15 picks up component 3 and inserts the lead 3R of component 3 into the insertion hole of the substrate 2, it can be inserted accurately, and the occurrence of errors due to the pitch of the lead 3R can be reduced. In this way, the supply efficiency of component 3 by the component supply device 13 can be improved.
[0192] (Actions and Effects Related to Lead Pitch Adjustment Mechanism 40B) As described above, the component supply device 13 of the first embodiment includes a transport path TR that transports the component 3 in the transport direction A toward the pick-up position 13P, and a lead pitch adjustment mechanism 40B that adjusts the pitch of the leads 3R of the component 3 on the transport path TR. The lead pitch adjustment mechanism 40B includes a movable guide 200 that is movable in a lateral direction B intersecting the transport direction A, and a fixed guide 202 that is provided at a position facing the movable guide 200 with the component 3 in between. The movable guide 200 has contact portions 214, 216 that can come into contact with the two leads 3R of the component 3 when the movable guide 200 moves in a direction approaching the component 3. The contact portions 214, 216 have inclined portions 214A, 216A that are inclined in a direction that narrows the pitch of the two leads 3R.
[0193] According to this configuration, the pitch of the leads 3R can be adjusted by bringing the contact portions 214, 216 of the movable guide 200 into contact with the leads 3R on the transport path TR along which the two leads 3R are transported with a gap therebetween in the transport direction A. This makes it possible to adjust the pitch of the leads 3R on the transport path TR, thereby improving the efficiency with which the component supply device 13 supplies the components 3.
[0194] Moreover, according to the component supplying device 13 of the first embodiment, the contact portions 214, 216 further have non-inclined portions 214B, 216B extending along the lateral direction B inside the inclined portions 214A, 216A. With this configuration, the lead 3R of the component 3 comes into contact with the non-inclined portions 214B, 216B after coming into contact with the inclined portions 214A, 216A, thereby restricting the movement of the lead 3R in the conveying direction A, and making it easier to adjust the pitch of the lead 3R to a constant length.
[0195] Moreover, according to the component supplying device 13 of the first embodiment, the contact portions 214, 216 further have a connection portion 218 (facing portion) on the inside of the non-inclined portions 214B, 216B, and the connection portion 218 faces the lead 3R of the component 3, which is in contact with the non-inclined portions 214B, 216B, with a gap therebetween in the lateral direction B. With this configuration, by preventing the lead 3R of the component 3 from contacting the connection portion 218, it is possible to prevent damage to the lead 3R due to contact with the connection portion 218 while maintaining the contact state between the lead 3R and the non-inclined portions 214B, 216B.
[0196] Furthermore, according to the component supplying device 13 of the first embodiment, the fixed guide 202 forms recesses 224, 226 that accommodate one ends of the contact portions 214, 216 when the movable guide 200 approaches the fixed guide 202. With such a configuration, the movable guide 200 can be moved to a position closer to the fixed guide 202, and it is possible to design the non-inclined portions 214B, 216B, for example, to be longer, thereby lengthening the time and distance for which the lead 3R contacts the non-inclined portions 214B, 216B.
[0197] Moreover, according to the component supplying device 13 of the first embodiment, the lead pitch adjustment mechanism 40B further includes a stopper 204 that faces the fixed guide 202 so as to sandwich the body 3B of the component 3 and is disposed at a different height position relative to the movable guide 200. With this configuration, by sandwiching the body 3B of the component 3 between the fixed guide 202 and the stopper 204 in the lateral direction B, it is possible to stabilize the posture of the component 3 when the movable guide 200 contacts the leads 3R to adjust the pitch. This improves the pitch adjustment accuracy.
[0198] Moreover, the component supplying device 13 of the first embodiment includes a first driving source 34 for feeding the component 3 on the transport path TR, and a second driving source 206 for driving the movable guide 200 in the lateral direction B. With this configuration, the feeding operation of the component 3 and the movement of the movable guide 200 can be performed independently of each other.
[0199] Moreover, the component supplying device 13 of the first embodiment further includes a control unit 16. The control unit 16 causes the first driving source 34 to intermittently feed the components 3, and causes the second driving source 206 to drive the movable guide 200 while the feeding of the components 3 is stopped. With this configuration, it is possible to perform the feeding of the components 3 and the pitch adjustment of the leads 3R while preventing interference between the movable guide 200 and the components 3.
[0200] Moreover, the component mounter 1 of the first embodiment includes a component supplying device 13 having a lead pitch adjustment mechanism 40B, and a component mounting mechanism 15. The component mounting mechanism 15 picks up a component 3 at a pickup position 13P in the component supplying device 13, and inserts the leads 3R of the picked-up component 3 into the board 2 to mount the component 3 on the board 2. The component mounter 1 configured in this way can achieve the same effects as the component supplying device 13 having the lead pitch adjustment mechanism 40B.
[0201] Moreover, the component supply method of the first embodiment includes a transport step of transporting the component 3 in the transport direction A toward the pick-up position 13P, and a lead pitch request step of adjusting the pitch of the leads 3R of the component 3. The lead pitch adjustment step executes a first contact step of moving the movable guide 200 in a direction approaching the component 3 using a lead pitch adjustment mechanism 40B including a movable guide 200 movable in a lateral direction B intersecting the transport direction A and a fixed guide 202 provided at a position facing the movable guide 200 with the component 3 in between, thereby widening the pitch of the leads 3R.
[0202] According to this method, the pitch of the leads 3R on the transport path TR can be adjusted, and the efficiency of supplying the components 3 can be improved.
[0203] (Modifications Related to Lead Pitch Adjustment Mechanism 40B) In the second embodiment, the case where the lead pitch adjustment mechanism 40B narrows the pitch of the leads 3R of the component 3 has been described, but the present invention is not limited to such a case, and the pitch of the leads 3R may be adjusted to be wider. In this case, the shape of the leads 3R can be changed to one that widens the pitch by changing the inclination direction of the inclined portions 214A, 216A of the contact portions 214, 216. In this manner, it is sufficient that the inclined portions 214A, 216A of the contact portions 214, 216 are inclined in a direction that widens or narrows the pitch of the two leads 3R.
[0204] (Embodiment 3) A component supplying device according to a third embodiment of the present invention will be described below. Note that in the third embodiment, differences from the first and second embodiments will be mainly described, and descriptions overlapping with the first and second embodiments will be omitted.
[0205] In the second embodiment, the first component correction mechanism 40 is provided with a lead pitch adjustment mechanism 40B that adjusts the pitch of the two leads 3R of the component 3, but in the third embodiment, the first component correction mechanism 40 is provided with a "component correction mechanism 40C" that has both the function of adjusting the pitch of the leads 3R and the function of correcting the posture of the component 3. In the following, the first component correction mechanism 40 will be described as the component correction mechanism 40C.
[0206] 37 and 38 are a perspective view and a plan view, respectively, of a component correction mechanism 40C according to the third embodiment.
[0207] The component correction mechanism 40C includes a pusher 300, a lever member 302, a base 304, a second drive source 306, and a cam mechanism 308. The pusher 300, the lever member 302, the base 304, the second drive source 306, and the cam mechanism 308 are all attached to the device main body 43 which forms the transport path TR.
[0208] The pusher 300 is a member for pressing and rotating the lever member 302. The pusher 300 is configured to be movable in the lateral direction B, and moves (pressing direction G1) so as to approach the component 3 stopped at a predetermined correction position P4, passing through the gap between the two leads 3R of the component 3, and pressing the lever member 302.
[0209] Lever member 302 is a member that rotates when pressed by pusher 300. Lever member 302 is disposed in a position facing pusher 300 across transport path TR. When lever member 302 rotates, regulating portions 336, 340 (FIG. 40) of lever member 302 face two leads 3R of component 3 at correction position P4 in transport direction A. By sandwiching two leads 3R in the gap between pusher 300 and lever member 302, leads 3R are positioned at a predetermined position, achieving a function of correcting the pitch of leads 3R and a function of correcting the posture of component 3.
[0210] The base 304 is a member that rotatably supports the lever member 302. The base 304 is fixed to the device body 43.
[0211] The second driving source 306 is a driving source for reciprocating the pusher 300 in the lateral direction B. The second driving source 306 is provided as a driving source different from the above-mentioned first driving source 34 (FIG. 2), and has an output shaft 307 that can be driven along the conveying direction A. The second driving source 306 of the third embodiment is a cylinder that drives the output shaft 307 back and forth. A cam mechanism 308 is connected to the output shaft 307 of the second driving source 306.
[0212] The cam mechanism 308 is a mechanism for converting the driving force of the second driving source 306 along the conveying direction A into a driving force in the lateral direction B and transmitting it to the pusher 300. The cam mechanism 308 includes a cam 310 connected to the output shaft 307, and a cam follower 312 engaged with the cam 310 and connected to the pusher 300. A cam groove 311 is formed at the tip of the cam 310, and a protrusion 313 of the cam follower 312 engages with the cam groove 311. The cam groove 311 has an oblique shape in a plan view such that the cam follower 312 moves along the lateral direction B when the cam 310 moves back and forth along the conveying direction A. The cam follower 312 is attached to the device body 43 in a state in which it is movable in the lateral direction B but its movement in the lateral direction is restricted.
[0213] According to this configuration, when the second driving source 306 drives the output shaft 307 back and forth along the conveying direction A, the cam 310 moves back and forth, and the cam follower 312 engaged with the cam 310 moves back and forth in the lateral direction B. This allows the pusher 300 connected to the cam follower 312 to move back and forth in the lateral direction B. Figures 37 and 38 show an example of a state in which the pusher 300 is separated from the lever member 302 (when not operating).
[0214] Next, the peripheral configuration of the pusher 300 and the lever member 302 will be described with reference to Figures 39 to 42. In Figures 39 to 42, the part 3 is not shown.
[0215] FIG. 39 is an enlarged perspective view of the pusher 300 and the lever member 302 and the surrounding configuration.
[0216] 39, pusher 300 has a pressing surface 314 for pressing lever member 302. Pressing surface 314 is one end of pusher 300 protruding in lateral direction B, and faces lever member 302 in lateral direction B. Pressing surface 314 is a surface extending along conveying direction A in a plan view.
[0217] The lever member 302 has a first lever 316 and a second lever 318 .
[0218] The first lever 316 and the second lever 318 are each configured to be rotatable, and rotate when pressed by the pressing surface 314 of the pusher 300. In the third embodiment, the first lever 316 and the second lever 318 are pressed by the pressing surface 314 of the same pusher 300 in a pressing direction G1.
[0219] The first lever 316 is rotatable in a rotation direction R4 around a first rotation shaft 317 extending in the Z-axis direction, and the second lever 318 is rotatable in a rotation direction R5 around a second rotation shaft 319 extending in the Z-axis direction. When the first lever 316 rotates, it faces the lead 3R on the rear side (upstream side A1) of the two leads 3R of the component 3. When the second lever 318 rotates, it faces the lead 3R on the front side (downstream side A2) of the two leads 3R of the component 3.
[0220] The component correction mechanism 40C further includes a biasing member 320, a first stopper 322, and a second stopper 324.
[0221] The biasing member 320 is a member for biasing the first lever 316 and the second lever 318. The biasing member 320 of the third embodiment is a spring-like member that connects between the first lever 316 and the second lever 318, and biases the first lever 316 and the second lever 318 in a pulling direction.
[0222] The first lever 316 is biased by the biasing member 320 in a rotational direction R6 opposite to the rotational direction toward the lead 3R on the rear side of the component 3. The second lever 318 is biased by the biasing member 320 in a rotational direction R7 opposite to the rotational direction toward the lead 3R on the front side of the component 3. By providing the biasing member 320, the first lever 316 and the second lever 318 can be kept retracted when not pressed by the pusher 300 (when not operating).
[0223] First stopper 322 is a member that restricts further rotation of first lever 316 biased by biasing member 320. Second stopper 324 is a member that restricts further rotation of second lever 318 biased by biasing member 320. By providing first stopper 322 and second stopper 324, first lever 316 and second lever 318 are each stopped at a predetermined retracted position.
[0224] The first stopper 322 and the second stopper 324 have a function of restricting the rotation of the levers 316, 318, and also a function of supporting prevention of the lead 3R of the component 3 from falling off when the levers 316, 318 rotate due to the pressure of the pusher 300. Details will be described later.
[0225] Next, detailed configurations of pusher 300, lever member 302, biasing member 320, and stoppers 322, 324 will be described with reference to Figures 40 to 42. Figures 40 to 42 are perspective views of pusher 300, lever member 302, biasing member 320, and stoppers 322, 324.
[0226] As shown in Figures 40 to 42, in addition to the pressing surface 314, the pusher 300 has a first inclined surface 326, a second inclined surface 328, a first opposing surface 330, a second opposing surface 331, a third opposing surface 332, and a fourth opposing surface 333.
[0227] The first inclined surface 326 and the second inclined surface 328 are surfaces that are inclined with respect to the conveying direction A and the lateral direction B, respectively, in a plan view. The first inclined surface 326 is located opposite the first lever 316 in the lateral direction B, and the second inclined surface 328 is located opposite the second lever 318 in the lateral direction B.
[0228] The first inclined surface 326 and the second inclined surface 328 are inclined in different directions. The first inclined surface 326 is inclined in a direction away from the lever member 302 as it moves toward the upstream side A1 in the conveying direction A, and the second inclined surface 328 is inclined in a direction away from the lever member 302 as it moves toward the downstream side A2 in the conveying direction A.
[0229] The first opposing surface 330 and the second opposing surface 331 are surfaces disposed on the inside of the first inclined surface 326 and the second inclined surface 328, respectively, and extend along the lateral direction B in a plan view. The first opposing surface 330 and the second opposing surface 331 are surfaces that face the lead 3R of the component 3 from the side opposite the levers 316 and 318 when the levers 316 and 318 rotate. The first opposing surface 330 faces the lead 3R on the rear side of the component 3 together with the first lever 316, and the second opposing surface 331 faces the lead 3R on the front side of the component 3 together with the second lever 318.
[0230] By providing the opposing surfaces 330 and 331, the lead 3R of the component 3 can be sandwiched together with the lever member 302 in the conveying direction A and positioned at a predetermined position. This makes it possible to adjust the pitch of the two leads 3R and correct the attitude of the component 3 in the conveying direction A.
[0231] The third opposing surface 332 and the fourth opposing surface 333 are surfaces that are disposed on the inside of the first opposing surface 330 and the second opposing surface 331, respectively, and extend along the conveying direction A in a plan view. The third opposing surface 332 and the fourth opposing surface 333 are surfaces that face the leads 3R of the component 3 in the lateral direction B when the pusher 300 advances in the pressing direction G1. The third opposing surface 332 faces the leads 3R on the rear side of the component 3, and the fourth opposing surface 333 faces the leads 3R on the front side of the component 3.
[0232] As shown in FIGS. 40 to 42, the first lever 316 has a first pressed portion 334 and a first restricting portion 336. As shown in FIGS.
[0233] The first pressed portion 334 is an end portion pressed by the pressing surface 314 of the pusher 300, and faces the pressing surface 314 in the lateral direction B. The first restricting portion 336 is an end portion at a position different from the first pressed portion 334, and faces the lead 3R on the rear side of the component 3 when the first lever 316 rotates.
[0234] As shown in FIGS. 40 to 42, the second lever 318 has a second pressed portion 338 and a second restricting portion 340. As shown in FIG.
[0235] The second pressed portion 338 is an end portion pressed by the pressing surface 314 of the pusher 300, and faces the pressing surface 314 in the lateral direction B. The second restricting portion 340 is an end portion at a position different from the second pressed portion 338, and comes into contact with the lead 3R on the front side of the component 3 when the second lever 318 rotates.
[0236] As shown in FIG. 40, the first stopper 322 has a first lever contact portion 342 and a first lead facing portion 344.
[0237] The first lever abutment portion 342 is a portion that abuts against the first lever 316 biased by the biasing member 320 to prevent further rotation in the rotational direction R6. The first lead opposing portion 344 is a portion that faces the third opposing surface 332 of the pusher 300 across the rear lead 3R of the component 3 when the pusher 300 advances in the pressing direction G1.
[0238] As shown in FIG. 40, the second stopper 324 has a second lever contact portion 346 and a second lead facing portion 348.
[0239] The second lever abutment portion 346 is a portion that abuts against the second lever 318 biased by the biasing member 320 to prevent further rotation in the rotation direction R7. The second lead opposing portion 348 is a portion that faces the fourth opposing surface 333 of the pusher 300 across the front lead 3R of the component 3 when the pusher 300 advances in the pressing direction G1.
[0240] A method for adjusting the pitch of the leads 3R of the component 3 and correcting the posture of the component 3 using the component correction mechanism 40C having the above-mentioned configuration will be described with reference to Figures 43A and 43B. Figures 43A and 43B are schematic plan views for explaining the method for correcting the component 3 using the component correction mechanism 40C.
[0241] 43A, when the pusher 300 is in the retracted position (non-operating), the component holding tape 4 is pitch-fed in the conveying direction A (conveying step), and one component 3 (shown by the dotted line) stops at the correction position P4. As the component 3 stops, the second driving source 306 (FIGS. 37 and 38) drives the pusher 300 to move forward in the pressing direction G1.
[0242] When the pusher 300 advances in the pressing direction G1, the pressing surface 314 of the pusher 300 passes between the two leads 3R and moves toward the pressed portions 334, 338 of the levers 316, 318.
[0243] 43B, the pressing surface 314 of the pusher 300 comes into contact with the pressed portions 334, 338 of the levers 316, 318 and presses them in a pressing direction G1. Each of the levers 316, 318 rotates, with the first lever 316 rotating in a rotation direction R8 around the first rotation shaft 317, and the second lever 318 rotating in a rotation direction R9 around the second rotation shaft 319 (part correction step).
[0244] As the first lever 316 rotates, the first restricting portion 336 faces the lead 3R on the rear side (upstream side A1) of the component 3 in the first pressing direction H1. The first pressing direction H1 is a direction toward the downstream side A2 of the conveying direction A. In the example shown in FIG. 43B, the first restricting portion 336 comes into contact with the lead 3R of the component 3 and presses it in the first pressing direction H1. The lead 3R of the component 3 pressed in the first pressing direction H1 is pressed toward the first opposing surface 330 of the advanced pusher 300. As a result, the rear lead 3R is positioned in the gap between the first restricting portion 336 and the first opposing surface 330, and movement in the front-rear direction along the conveying direction A is restricted (first lead correction step).
[0245] The lead 3R is further sandwiched between the third opposing surface 332 of the advanced pusher 300 and the first lead opposing portion 344 of the first pusher 322. This restricts the movement of the rear lead 3R in the lateral direction B. In this manner, the horizontal movement of the lead 3R is restricted.
[0246] In addition, the first restricting portion 336 of the first lever 316 rotating in the rotation direction R8 comes into contact with the first reed facing portion 344 of the first stopper 322, and is restricted from further rotation. The first reed facing portion 344 also functions as a stopper for the first lever 316.
[0247] As the second lever 318 rotates, the second restricting portion 340 faces the lead 3R on the front side (downstream side A2) of the component 3 in the second pressing direction H2. The second pressing direction H2 is a direction toward the upstream side A1 of the conveying direction A. In the example shown in FIG. 43B, the second restricting portion 340 comes into contact with the lead 3R of the component 3 and presses it in the second pressing direction H2. The lead 3R of the component 3 pressed in the second pressing direction H2 is pressed toward the second opposing surface 331 of the advanced pusher 300. As a result, the front lead 3R is positioned in the gap between the second restricting portion 340 and the second opposing surface 331, and movement in the front-rear direction along the conveying direction A is restricted (second lead correction step).
[0248] The lead 3R is further sandwiched between the fourth opposing surface 333 of the advanced pusher 300 and the second lead opposing portion 348 of the second pusher 324. This also restricts the movement of the front lead 3R in the lateral direction B. In this way, the horizontal movement of the lead 3R is restricted.
[0249] In addition, the second restriction portion 340 of the second lever 318, which rotates in the rotation direction R9, comes into contact with the second lead facing portion 348 of the second stopper 324, and is restricted from further rotation. The second lead facing portion 348 also functions as a stopper for the second lever 318.
[0250] In the state shown in Fig. 43B, the two leads 3R are positioned at predetermined positions, so that the pitch of the leads 3R is adjusted to a desired length and the posture of the component 3 is corrected. If the pitch of the two leads 3R is wider than the desired pitch length in the pre-adjustment state shown in Fig. 43A, the restricting portions 336, 340 press the two leads 3R in a direction toward each other, as shown in Fig. 43B, thereby narrowing the pitch of the leads 3R. At the same time, if the two leads 3R are inclined relative to the vertical direction (Z-axis direction), the component 3 is corrected to an upright posture.
[0251] Thereafter, when the pusher 300 is driven in the retraction direction G2 opposite to the pressing direction G1, the state returns to the same state as that shown in Fig. 43A. Although springback occurs in the lead 3R, the pitch of the lead 3R approaches the desired pitch length and the posture of the component 3 approaches the upright posture compared to the state before the pusher 300 is operated.
[0252] Thereafter, the component holding tape 4 is fed in the transport direction A, and the next component 3 is stopped at the correction position P4. By moving the pusher 300 back and forth for the next component 3 as well, it is possible to adjust the pitch of the leads 3R to a desired length and correct the tilt of the component 3. In this way, it is possible to adjust the pitch of the leads 3R and correct the tilt of each component 3 transported along the transport path TR.
[0253] Each component 3 is transported toward the pick-up position 13P with the leads 3R at a desired pitch. This allows the component mounting mechanism 15 to pick up the component 3 and insert the leads 3R of the component 3 into the insertion holes of the board 2 with high precision, reducing the occurrence of errors caused by the pitch of the leads 3R. Furthermore, each component 3 is transported toward the pick-up position 13P while being maintained in a generally upright position, improving the success rate of picking up the component 3 by the component mounter 15. In this way, the efficiency of supplying the components 3 by the component supply device 13 can be improved.
[0254] In the example shown in FIG. 43A and FIG. 43B, the pitch of the two leads 3R before the pusher 300 operates is wide, and the pitch of the leads 3R is narrowed. However, the present invention is not limited to such a case, and the pitch of the leads 3R can be adjusted to be widened. For example, in the state before adjustment shown in FIG. 43A, when the pitch of the two leads 3R is narrow, the two leads 3R contact the inclined surfaces 326 and 328 as the pusher 300 advances. The lead 3R on the rear side contacts the first inclined surface 326, and the lead 3R on the front side contacts the second inclined surface 328. Depending on the inclination directions of the inclined surfaces 326 and 328, the lead 3R on the rear side is guided outward (upstream side A1) toward the first opposing surface 330, and the lead 3R on the front side is guided outward (downstream side A2) toward the second opposing surface 331. This widens the pitch between the two leads 3R, and positions the leads 3R at predetermined positions, as in the case shown in Fig. 43B. In this way, even if the pitch between the leads 3R is narrow, by utilizing the inclined surfaces 326 and 328, it is possible to widen the pitch between the leads 3R and correct the posture of the component 3.
[0255] (Actions and Effects Related to Parts Correction Mechanism 40C) As described above, the component supply device 13 of the third embodiment includes a transport path TR along which the component 3 is transported in the transport direction A toward the pick-up position 13P, and a component correction mechanism 40C for correcting the component 3 on the transport path TR. The component correction mechanism 40C includes a pusher 300 that is movable in a lateral direction B intersecting the transport direction A so as to pass between the leads 3R, and a lever member 302 that rotates when pressed by the pusher 300. The lever member 302 includes a first lever 316 and a second lever 318. The first lever 316 rotates about a first rotation axis 317 in response to the pressure of a pressing surface 314 (first pressing surface) of the pusher 300, and sandwiches the lead 3R (first lead) of the component 3 between the first opposing surface 330 of the pusher 300. The second lever 318 rotates about a second rotation axis 319 in response to the pressure of the pressing surface 314 (second pressing surface) of the pusher 300, and clamps the lead 3R (second lead) of the component 3 between itself and a second opposing surface 331 of the pusher 300.
[0256] According to this configuration, by clamping the two leads 3R between the pusher 300 and the two levers 316, 318, it is possible to adjust the pitch of the two leads 3R and correct the inclination of the component 3. This makes it possible to improve the efficiency with which the component supply device 13 supplies the components 3.
[0257] Moreover, according to the component supplying device 13 of the third embodiment, the first lever 316 has a first regulating portion 336 that restricts movement of the lead 3R (first lead) in the conveying direction A by sandwiching it between the first opposing surface 330 of the pusher 300, and the second lever 318 has a second regulating portion 340 that restricts movement of the lead 3R (second lead) in the conveying direction A by sandwiching it between the second opposing surface 331 of the pusher 300. With this configuration, by restricting movement of the two leads 3R in the conveying direction A, it is possible to accurately adjust the pitch of the leads 3R and correct inclination of the components 3.
[0258] Moreover, according to the component supplying device 13 of the third embodiment, the pusher 300 further has a third opposing surface 332 facing in the lateral direction B to the lead 3R (first lead) sandwiched between the first opposing surface 330 and the first lever 316, and a fourth opposing surface 333 facing in the lateral direction B to the lead 3R (second lead) sandwiched between the second opposing surface 331 and the second lever 318. With this configuration, the opposing surfaces 332 and 333 can prevent the lead 3R from falling off in the lateral direction B.
[0259] Moreover, according to the component supplying device 13 of the third embodiment, the pusher 300 further has a first inclined surface 326 that extends at an angle between the pressing surface 314 (first pressing surface) and the first opposing surface 330, and a second inclined surface 328 that extends at an angle between the pressing surface 314 (second pressing surface) and the second opposing surface 331. With this configuration, the leads 3R of the component 3 can be brought into contact with the inclined surfaces 326, 328 and guided toward the opposing surfaces 330, 331, particularly when the pitch of the leads 3R is narrow.
[0260] Furthermore, according to the component supplying device 13 of the third embodiment, the first lever 316 is disposed upstream of the second lever 318 in the conveying direction A, the first inclined surface 326 has a shape inclined in a direction away from the first lever 316 toward the upstream side A1 of the conveying direction A, and the second inclined surface 328 has a shape inclined in a direction away from the second lever 318 toward the downstream side A2 of the conveying direction A. With this configuration, the tip of the pusher 300 can be made compact.
[0261] Furthermore, according to the component supplying device 13 of the third embodiment, the pressing surface 314 (first pressing surface) that presses the first lever 316 and the pressing surface 314 (second pressing surface) that presses the second lever 318 are formed on the same surface of the pusher 300. With this configuration, the configuration of the pusher 300 can be simplified.
[0262] According to the component supplying device 13 of the third embodiment, the component correction mechanism 40C further includes a biasing member 320 that biases the first lever 316 in a rotational direction R6 away from the rear lead 3R (first lead) of the component 3, and biases the second lever 318 in a rotational direction R7 away from the front lead 3R (second lead) of the component 3. With this configuration, the lever member 302 can be retracted when it is not pressed by the pusher 300.
[0263] According to the component supplying device 13 of the third embodiment, the component correction mechanism 40C further includes a first stopper 322 that comes into contact with the first lever 316 biased by the biasing member 320 (first biasing member) to restrict further rotation of the first lever 316, and a second stopper 324 that comes into contact with the second lever 318 biased by the biasing member (second biasing member) to restrict further movement of the second lever 318. With this configuration, the levers 316, 318 biased by the biasing member 320 can be kept waiting at a predetermined retreat position away from the transport path TR.
[0264] Furthermore, according to the component supplying device 13 of the third embodiment, the first stopper 322 is disposed at a position facing in the horizontal direction B to the lead 3R (first lead) sandwiched between the first opposing surface 330 of the pusher 300 and the first lever 316, and the second stopper 324 is disposed at a position facing in the horizontal direction B to the lead 3R (second lead) sandwiched between the second opposing surface 331 of the pusher 300 and the second lever 318. With this configuration, the stoppers 322 and 324 can prevent the lead 3R from falling off in the horizontal direction B.
[0265] Furthermore, according to the component supplying device 13 of the third embodiment, the first lever 316 and the second lever 318 are biased by a common biasing member 320. With such a configuration, the number of components of the component correction mechanism 40C can be reduced, leading to cost reduction.
[0266] Moreover, the component mounter 1 of the third embodiment includes a component supplying device 13 having a component correction mechanism 40C, and a component mounting mechanism 15. The component mounting mechanism 15 picks up a component 3 at a pickup position 13P in the component supplying device 13, and inserts the leads 3R of the picked-up component 3 into the board 2 to mount the component 3 on the board 2. The component mounter 1 configured in this way can achieve the same effects as the component supplying device 13 having the component correction mechanism 40C.
[0267] The component supply method of the third embodiment includes a conveying step of conveying the component 3 in the conveying direction A toward the pick-up position 13P, and a component correction step of correcting the component 3. The component correction step includes a first lead correction step and a second lead correction step, which are performed using the component correction mechanism 40C. In the first lead correction step, the first lever 316 of the lever member 302 is pressed and rotated by the pressing surface 314 (first pressing surface) of the pusher 300, and the lead 3R (first lead) of the component 3 is sandwiched between the first opposing surface 330 and the first lever 316 of the pusher 300. In the second lead correction step, the second lead correction step is performed, in which the second lever 318 of the lever member 302 is pressed and rotated by the pressing surface 314 (second pressing surface) of the pusher 300, and the lead 3R (second lead) of the component 3 is sandwiched between the second opposing surface 331 and the second lever 318 of the pusher 300.
[0268] According to this component supply method, by clamping the two leads 3R between the pusher 300 and the two levers 316, 318, it is possible to adjust the pitch of the leads 3R and correct the inclination of the components 3. This makes it possible to improve the efficiency of supplying the components 3.
[0269] (Modifications Related to Part Correcting Mechanism 40C) In the third embodiment, the case where one pusher 300 presses two levers 316, 318 has been described, but the present invention is not limited to this case, and the two levers may be pressed by separate pushers. This modification will be described with reference to Figs. 44 to 45B.
[0270] Fig. 44 is a perspective view showing a component correction mechanism 40D according to a modified example of embodiment 3. Figs. 45A and 45B are schematic plan views for explaining a method for correcting the component 3 using the component correction mechanism 40D according to this modified example.
[0271] The part correction mechanism 40D shown in FIG. 44 includes two pushers 400A and 400B and two levers 416 and 418.
[0272] The first pusher 400A is a member for pressing the first lever 416 to rotate it, and the second pusher 400B is a member for pressing the second lever 418 to rotate it. The first pusher 400A, together with the first lever 416, positions the rear lead 3R (not shown) of the component 3 at the first correction position P5. The second pusher 400B, together with the second lever 418, positions the rear lead 3R (not shown) of the component 3 at the second correction position P6.
[0273] In this modification, two pushers 400A, 400B are integrally formed and driven in the lateral direction B by the same drive source (for example, the second drive source 306 in the third embodiment).
[0274] The first pusher 400A has a first pressing surface 414A, a first inclined surface 426, a first opposing surface 430, and a third opposing surface 432. Hereinafter, members having the same names as those in the third embodiment have the same configurations and functions as those described in the third embodiment, and detailed description thereof will be omitted.
[0275] The first lever 416 is rotatable about the first rotation shaft 417, and has a first pressed portion 434 and a first restricting portion 436. The first biasing member 420A biases the first lever 416 in a rotation direction R10. The first support portion 421A is a shaft-shaped member that supports one end of the spring-shaped first biasing member 420A, and is attached to the base 404 together with the first rotation shaft 417. The first stopper 422 restricts further rotation of the first lever 416 biased by the first biasing member 420A in the rotation direction R10.
[0276] The second pusher 400B has a second pressing surface 414B, a second inclined surface 428, a second opposing surface 431, and a fourth opposing surface 433.
[0277] The second lever 418 is rotatable about the second rotation shaft 419, and has a second pressed portion 438 and a second restricting portion 440. The second biasing member 420B biases the second lever 418 in the rotation direction R11. The second support portion 421B is a shaft-shaped member that supports one end of the spring-shaped second biasing member 420B, and is attached to the base 404 together with the second rotation shaft 419. The second stopper 424 restricts further rotation of the second lever 418 biased by the second biasing member 420B in the rotation direction R11.
[0278] 45A, when the pushers 400A and 400B are in the retracted position (non-operating), the component holder tape 4 is conveyed in the conveying direction A, and one component 3 stops at the first correction position P5, and the adjacent component 3 stops at the second correction position P6. As the component 3 stops, the pushers 400A and 400B are driven in the pressing direction G3.
[0279] When the pushers 400A and 400B move in the pressing direction G3, the first pressing surface 414A of the first pusher 400A passes between the two leads 3R of the part 3 at the first correcting position P5 and advances toward the first pressed portion 434 of the first lever 416. Similarly, the second pressing surface 414B of the second pusher 400B passes between the two leads 3R of the part 3 at the second correcting position P6 and advances toward the second pressed portion 438 of the second lever 418.
[0280] As shown in Fig. 45B, the first pressing surface 414A of the first pusher 400A presses the first lever 416, causing the first lever 416A to rotate in the rotation direction R12. The first restricting portion 436 of the first lever 416 positions the rear lead 3R of the component 3 by sandwiching it between the first opposing surface 430 (Fig. 45A) of the advanced first pusher 400A. The lead 3R is also sandwiched between the third opposing surface 432 of the first pusher 400A and the first pusher 422, restricting horizontal movement.
[0281] Similarly, the second pressing surface 414B of the second pusher 400B presses the second lever 418, causing the second lever 418 to rotate in the rotation direction R13. The second restricting portion 440 of the second lever 418 positions the lead 3R on the front side of the component 3 by sandwiching it between the second opposing surface 431 (FIG. 45A) of the advanced second pusher 400B. The lead 3R is also sandwiched between the fourth opposing surface 433 of the second pusher 400B and the second pusher 424, restricting horizontal movement.
[0282] According to the above operation, the rear lead 3R of the component 3 at the first correction position P5 is positioned at a predetermined position, and the front lead 3R of the component 3 at the second correction position P6 is positioned at a predetermined position. This makes it possible to correct the posture of the component 3 at each of the correction positions P5 and P6, and to adjust the final pitch of the two leads 3R to a desired length. Furthermore, by stopping the component 3 at the first correction position P5 and the second correction position P6 in turn, it is possible to correct the posture of the component 3 to an upright posture while taking springback into consideration, regardless of whether the component 3 is tilted forward or backward.
[0283] Although the present invention has been described above with reference to the above-mentioned embodiments 1 to 3, the present invention is not limited to the above-mentioned embodiments 1 to 3. For example, both the posture correction mechanism 40A of embodiment 1 and the lead pitch adjustment mechanism 40B of embodiment 2 may be provided in the same component supply device 13. This makes it possible to adjust the pitch of the leads 3R while correcting the posture of the component 3 midway along the transport path TR.
[0284] Although the present disclosure has been fully described in connection with the preferred embodiments with reference to the accompanying drawings, various modifications and alterations will be apparent to those skilled in the art. Such modifications and alterations should be understood to be included within the scope of the present disclosure as defined by the appended claims, unless they deviate from the scope of the present disclosure. In addition, changes in the combination and order of elements in each embodiment may be made without departing from the scope and spirit of the present disclosure.
[0285] Incidentally, among the above-described embodiment and various modified examples, any of the embodiments and modified examples can be appropriately combined to achieve the effects of each of them. [Industrial Applicability]
[0286] The present invention is applicable to any component supplying device that supplies components such as radial components, a component mounting machine including the same, and a component supplying method. [Explanation of symbols]
[0287] 1. Component Mounting Machine 2. Board 3 Parts 3B Body 3R Lead 4 Component retention tape 11 Foundation 11D Trolley 12 Substrate transport mechanism 12a Conveyor mechanism 13 Parts supply device 13K Parts supply port 13P Pickup position 14 Parts Camera 15 Component mounting mechanism 16 Control section 21 Head movement mechanism 21a Fixed table 21b Mobile table 21c Moving Plate 22 Mounting head 22a Suction nozzle 22b Adsorption control mechanism 31 Base 32 Cover part 34 First driving source 35 Output shaft 40 First part correction mechanism 40A Posture correction mechanism 40B Lead pitch adjustment mechanism 40C, 40D Parts correction mechanism 42 Second part correction mechanism 42A Posture correction mechanism 43 Device main body 44 Movable guide 46 Fixed guide 48 Second Drive Source 49 Output shaft 50 Cam mechanism 54 Cam 55 Cam groove 56 Cam follower 58 Protrusion 60 1st contact part 60A First Inclined Section 60B 1st non-inclined section 62 2nd contact part 62A 1st slope section 62B 1st non-inclined section 64, 66 Recess 68 Connection 100 First Regulatory Department 101 Touch Panel 102 Second Regulatory Department 106 Cam mechanism 107 Lead cut section 107A Fixed part 107B Moving part 108 Cam 109 Cam groove 110 Cam follower 110A Tip 111 Protrusion 112 Transport Chute 113 First side guide 114 Second side guide 116 Front guide part 118 Rear guide section 120 Fixed part 122 Rotating part 124 Clamp 126 Sprocket hole 200 Movable guide 202 Fixed guide 204 Stopper 206 Second Drive Source 207 Output shaft 208 Cam mechanism 2 210 Cam 211 Cam groove 212 Cam follower 213 Protrusion 214 1st contact part 214A 1st slope section 214B 1st non-inclined section 216 2nd contact part 216A 1st slope section 216B 1st non-inclined section 218 Connection 220 Opposite Surface 224, 226 Recess 225 Opposite Surface 300 Pusher 302 Lever member 304 Pedestal 306 Second Drive Source 307 Output shaft 308 Cam mechanism 310 Cam 311 Cam groove 312 Cam follower 313 Protrusion 314 Pressing surface 316 First Lever 317 First Rotation Axis 318 Second Lever 319 Second Rotation Axis 320 Pressing member 322 First stopper 324 Second Stopper 326 1st slope 328 2nd slope 330 First opposing surface 331 Second opposing surface 332 Third opposing surface 333 4th facing surface 334 First pressed part 336 First Regulatory Department 338 Second pressed part 340 Second Regulatory Department 342 First lever contact part 344 First lead facing part 346 Second lever contact part 348 Second lead facing part 400A 1st Pusher 400B 2nd Pusher 404 Pedestal 414A First pressing surface 414B Second pressing surface 416 First Lever 417 First Rotation Axis 418 Second Lever 419 Second Rotation Axis 420A First biasing member 420B second biasing member 421A 1st support part 421B 2nd support part 422 First stopper 424 Second Stopper 426 1st slope 428 2nd slope 430 First opposing surface 431 Second opposing surface 432 3rd facing surface 433 4th facing surface 434 First pressed part 436 First Regulatory Department 438 Second pressed part 440 Second Regulatory Department A Conveying direction (front-back) A1 Upstream side (rear side) A2 Downstream side (front side) B. Horizontal D1 Interval D2 Length (pitch) D3 Length (pitch) TR Transport Route P1 1st correction position P2 2nd correction position P3 Pitch adjustment position P4 Correction position P5 1st correction position P6 2nd correction position
Claims
1. a conveying path for conveying the part in a conveying direction toward a pick-up position; a posture correction mechanism for correcting a posture of the component on the conveying path; A control unit, the posture correction mechanism includes a movable guide having a contact portion capable of coming into contact with a lead of a component and movable in a lateral direction intersecting the transport direction, and a fixed guide provided at a position opposite the movable guide with the lead of the component interposed therebetween; the movable guide includes a first contact portion that contacts a first lead on a rear side of the component and a second contact portion that contacts a second lead on a front side of the component, the first contact portion having a first inclined portion inclined to incline the component toward the front side, and the second contact portion having a second inclined portion inclined to incline the component toward the rear side; The control unit, during a component feeding operation, stops each component at both a first correction position where the first contact portion contacts a first lead and a second correction position where the second contact portion contacts a second lead.
2. 2. The component supply device according to claim 1, wherein the first inclined portion has a shape that is inclined in a direction away from the fixed guide as it approaches the downstream side of the conveying direction, and the second inclined portion has a shape that is inclined in a direction away from the fixed guide as it approaches the upstream side of the conveying direction.
3. 3. The component supply device according to claim 2, wherein the first contact portion further has a first non-inclined portion extending along the lateral direction inside the first inclined portion, and the second contact portion further has a second non-inclined portion extending along the lateral direction inside the second inclined portion.
4. The component supplying device according to claim 3 , wherein the posture correction mechanism has a connection portion extending along the conveying direction so as to connect the first non-inclined portion and the second non-inclined portion.
5. The component supplying device according to claim 1 , wherein the first contact portion is provided upstream of the second contact portion in the conveying direction.
6. A part supplying device described in any one of claims 1 to 5, wherein the control unit performs a part feeding operation intermittently.
7. 7. The component supplying device according to claim 1, further comprising: a first drive source for feeding the components along the transport path; and a second drive source for driving the movable guide in the lateral direction.
8. A part supplying device as described in claim 7, wherein the movable guide is driven by the second drive source while the feeding of parts by the first drive source is stopped.
9. The component supply device according to any one of claims 1 to 8; a component mounting mechanism that picks up a component at the pickup position in the component supply device and inserts the leads of the picked-up component into a board to mount the component on the board.
10. a conveying step of conveying the part in a conveying direction toward a pick-up position; and a posture correcting step of correcting the posture of the part, The posture correction step includes: using an attitude correction mechanism including a movable guide having a contact portion capable of contacting the leads of the component and movable in a lateral direction intersecting the transport direction, and a fixed guide provided at a position opposite to the movable guide with the leads of the component in between, a first contact step of contacting a first contact portion of the movable guide with a first lead on a rear side of the component and tilting the component forward by a first inclination portion provided on the first contact portion; a second contact step of contacting a second contact portion of the movable guide with a second lead on a front side of the component and tilting the component backward by a second inclination portion provided on the second contact portion; A component supply method, in which, in the transport step, each component is stopped at both a first correction position where the first contact portion contacts a first lead and a second correction position where the second contact portion contacts a second lead.
11. In the first contact step, the first inclined portion is brought into contact with a first lead of the component, the first inclined portion being inclined in a direction away from the fixed guide as it goes downstream in the transport direction; 11. The component supply method according to claim 10, wherein in the second contacting step, the second inclined portion, which is inclined in a direction away from the fixed guide as it moves toward the upstream side in the transport direction, is brought into contact with the second lead of the component.
Citation Information
Patent Citations
Device for automatically correcting lead wire distortion of electronic parts
JP1977136364A
Dry mixed phosphate
JP1983064294A
Forming apparatus for lead terminal
JP1987092425A