JPH0465105A - Air-cored coil transfer apparatus - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

Detailed Description of the Invention [Purpose of the Invention (Industrial Application Field) This invention provides an insertion chuck for inserting an air-core coil formed by winding a long wire into a printed circuit board. The present invention relates to a delivery device for air-core coils.

(Prior Art) Conventionally, a manufacturing apparatus for manufacturing an air-core coil is known from, for example, Japanese Utility Model Application Publication No. 60-22593, and is an air-core coil manufacturing apparatus for inserting the manufactured air-core coil into a printed circuit board. Insertion devices are known from JP-A-63-126300 and JP-A-1-132200.

The air-core coil manufacturing apparatus is a method of forming an air-core coil by rotating the winding shaft and winding the wire around the winding shaft while the tip of the wire is chucked on the winding shaft around which the wire is wound. The air-core coil is inserted into the printed circuit board using a separate automatic insertion machine.

Further, the air-core coil insertion device includes an insertion head that includes a first chuck that clamps one lead of the air-core coil and a second chuck that clamps the other lead of the air-core coil. The air-core coil is guided to the printed circuit board with both leads being held between them, and the air-core coil is pressed from above with a pusher to insert the air-core coil into the printed circuit board.

In other words, conventionally, the equipment for manufacturing air-core coils and the equipment for inserting the air-core coils into printed circuit boards were separate equipment, and the air-core coils manufactured by the air-core coil manufacturing equipment were transferred to the air-core coils by a component supply device, etc. It is supplied to the core coil insertion device.

(Problem to be Solved by the Invention) However, as mentioned above, if the air core coil manufacturing device and the air core coil insertion device are separate devices, the air core is It is necessary to supply the parts to the coil insertion device, and if there is a change in the shape, size, etc. of the air-core coil, the component supply device also needs to be replaced. Furthermore, in component supply devices such as pole feeders and linear feeders, the air-core coils tend to become entangled with each other, making it difficult to separate and feed the air-core coils one by one. Furthermore, since the air-core coil obtained by the air-core coil manufacturing apparatus is manually fed into the component supply apparatus by an operator, there is a risk of incorrect feeding.

In addition, in order to insert the air-core coil into a printed circuit board, the insertion chuck that grips the air-core coil is an opening/closing chuck that opens and closes a pair of clamping claws, so when gripping and releasing the air-core coil, Since it is necessary to secure a space for opening and closing the pair of clamping claws, there is an inconvenience that the arrangement of electronic components on the printed circuit board is restricted, and high-density insertion is impossible.

This invention was made in view of the above-mentioned circumstances, and its purpose is to transfer an air-core coil formed by winding a wire around a winding shaft to an insertion chuck for inserting it into a printed circuit board. Air-core coils can be quickly inserted into printed circuit boards with high density, and can be supplied using simple pins, making it possible to flexibly accommodate changes in the shape and size of the air-core coils. The purpose of the present invention is to provide a coil delivery device.

[Structure of the Invention (Means and Effects for Solving the Problems) In order to achieve the above object, claim 1 provides a method for forming an air-core coil from a winding shaft to a shaft by winding a wire. a supply pin inserted into the coil part of the air-core coil supplied in the direction;
a coil attitude regulating pin installed parallel to the supply pin and interposed between the pair of lead parts of the air-core coil to regulate the attitude of the air-core coil in the circumferential direction; a housing part for accommodating the air-core coil; A box-shaped insertion chuck having both sides on which the lead part is held in pressure contact by the spring backup force of the air-core coil, and the air-core coil is inserted by moving the supply pin and the insertion chuck relatively in the radial direction of the air-core coil. It consists of a supply means for supplying to the chuck, and a supply pin extraction means for retracting the supply pin in the axial direction and extracting it from the coil portion of the air-core coil.

When the supply pin or insertion chuck inserted into the coil part of the air-core coil is moved in the radial direction of the air-core coil and the air-core fill is supplied together with the supply pin to the insertion chuck, the lead part is moved by the spring backup force of the air-core coil. The supply pin is held in pressure contact with both sides of the insertion chuck, and then the supply pin is retracted in the axial direction and extracted from the coil portion of the air-core coil, thereby transferring the air-core coil to the insertion chuck.

A second aspect of the present invention provides a winding shaft for forming an air-core coil, and a winding shaft installed parallel to the winding shaft and interposed between a pair of lead portions of the air-core coil to regulate the attitude of the air-core coil in the circumferential direction. A box-shaped insertion chuck having a coil attitude regulating pin, a housing portion for accommodating the air-core coil, and both sides on which the lead portion is held in pressure contact by the spring backup force of the air-core coil; It consists of a supply means for relatively moving the core coil in the radial direction and supplying the air-core coil to the insertion chuck, and a winding shaft extraction means for retracting the winding shaft in the axial direction and extracting it from the coil portion of the air-core coil.

When the winding shaft or insertion chuck inserted into the coil part of the air-core coil is moved in the radial direction of the air-core coil and the winding shaft and air-core coil are fed to the insertion chuck, the lead part is moved by the spring backup force of the air-core coil. The air-core coil is held in pressure contact with both sides of the insertion chuck, and then the winding shaft is retracted in the axial direction and extracted from the coil portion of the air-core coil, thereby transferring the air-core coil to the insertion chuck.

(Example) Hereinafter, one embodiment of the present invention will be described based on the drawings.

FIG. 1 shows the entire automatic winding insertion device for air-core coils, where 1 is a base and 2 is a control box. A movable table 4 is provided on the upper surface of the base 1 so as to be movable in the direction of arrow a via a slider unit 3, and a rail 5 is provided at one end of the movable table 4. A peeling mechanism 6 is movably mounted on this rail 5, and a wire 9 is supplied from a wire supply section 7 via a tension unit 8.
The coating is peeled off. That is, the wire rod supply section 7 is formed by a reel 10 wound with a wire rod 9, and the wire rod 9 unwound from the reel 10 is applied with a constant tension by the tension unit 8. The wire 9 is a metal wire coated with an insulating coating, and the air-core coil 11 formed by the wire 9 has lead portions 11b and llb at both ends of a coil portion 11a, as shown in FIG. There is. Then, the peeling mechanism 6
, the lead portions 11b and llb of the air-core coil 11
The coating at the portion where the wire 9 becomes is peeled off using a peeling cutter (not shown) placed around the wire rod 9.
The tip of the wire 9 and the middle portion of the wire 9 at a constant distance from the tip are partially peeled off.

A winding mechanism 12 is provided on the other end side of the movable table 4. This winding mechanism 12 is constructed as shown in FIGS. 2 to 5. That is, 13 is a bearing stand, and on this bearing stand 13, a winding pitch feed shaft 15 is vertically supported by a bearing 14, and a winding shaft rotating shaft 17 is vertically supported by a bearing 16. There is. and,
The winding pitch feed shaft 15 is driven by a winding pitch motor 15a, and the winding shaft rotating shaft 17 is driven by a winding shaft motor 17a. An elevating member 19 supported by a guide rod 18.18 is fixed to the lower end of the winding pitch feed shaft 15, and a moving block 21 that can move forward and backward in the longitudinal direction of the wire rod 9 is provided on the lower surface of this member 19. . This moving block 21 is driven forward and backward by an air cylinder 22, and this moving block 21 is provided with a wire clamping mechanism 23 and a wire braking mechanism 24. The wire clamper mechanism 23 includes a fixed member 25 provided at the upper part facing the pass line of the wire, a movable member 26 provided at the lower part opposed to this fixed member 26, and this movable member 2.
When the movable member 26 moves forward, the wire rod 9 is held between it and the fixed member 25, and when the movable member 26 moves backward, the wire rod 9 is released. Also,
The wire braking mechanism 24 includes a fixing member 28 provided at an upper portion facing the wire guide portion 2o, a braking lever 29 rotatably supported below the fixing member 28, and a clockwise rotation of the braking lever 29. It consists of a biasing spring 30 that biases the wire rod 9 in the direction, and when the wire rod 9 moves forward, it is allowed to move forward while applying a brake to the wire rod 9, and when it moves backward, the fixing member 28 and the brake lever 29
The wire rod 9 is clamped and fixed between them. Furthermore, a wire guide nozzle 3 is provided at the tip of the wire guide section 20.
1 is provided to supply a wire 9 to a winding portion to be described later, and the winding start lead length at that time can be adjusted using an adjustment micrometer 32.

Further, an air core coil 1 is provided at the lower end of the winding shaft rotating shaft 17.
A winding shaft 35 forming one coil portion 11a is vertically and replaceably attached by screwing. This winding shaft 3
An air nozzle 3 constituting a separation mechanism 36 is diagonally above the air nozzle 5.
6a is provided and the air core coil 11 is wound around the winding shaft 35.
When dropping the air-core coil 11, air is blown against the air-core coil 11 to forcibly drop the air-core coil 11 from the winding shaft 35. Furthermore, supply pins 37 are provided below the winding shaft 35 so as to be concentrically opposed to each other. moreover,
A coil posture guide pin 38 is provided at a distance between the winding shaft 35 and the supply pin 37 so as to be movable up and down.

Further, as shown in FIGS. 4 and 5, a clamper 39 is provided at the lower end of the winding shaft rotating shaft 17 and is rotated by a solenoid or the like, and the tip thereof is attached to the side surface of the winding shaft 35. The wire rod 9 is brought into contact with the winding shaft 35 so that the tip end of the wire rod 9 is clamped to the side surface of the winding shaft 35. Further, a cutter 40 is provided between the winding shaft 35 and the wire guide nozzle 31 for cutting the winding end of the wire 9.

Further, the supply pin 37 and the coil posture guide pin 38 are supported by an air-core coil delivery mechanism 41.

The air-core coil delivery mechanism 41 is provided with a positioning guide plate 42, and the positioning guide plate 42 has a notch 43 that fits into the supply pin 37 and a guide cylinder 44 that pivotally supports the coil posture guide pin 38 so as to be vertically movable. is provided.

The supply pin 37 and the coil posture guide pin 38 are driven up and down by an air cylinder (not shown). Further, as shown in FIG. 3, the supply pin 37 is connected to the horizontal air cylinder 4 via a bracket 37a.
5a, and this horizontal air cylinder 45a is supported by a vertical air cylinder 45b. The air core coil 11 can be supplied to a gripping mechanism 46, which will be described later, by moving the supply pin 37 in the horizontal and vertical directions using both air cylinders 45a and 45b.

Next, the coil insertion mechanism 47 provided with the gripping mechanism 46 will be explained based on FIGS. 6 and 7. That is, 48 is a housing, and a ball spline 50 is rotatably provided in the housing 48 via a radial bearing 49, and a spline shaft 51 is supported on the ball spline 50 so as to be vertically movable. At the upper end of the spline shaft 51 is an air cylinder 521 for vertical movement.
(see figure), and a boo 953 is fitted in the middle part. The pulley 53 is interlocked with a motor 55 through a belt 54, and is configured to rotate the spline shaft 51.

A bracket 56 is fixed to the lower end of the spline shaft 51, and a pinion 58 is rotatably supported on the bracket 56 via a support shaft 57.

A rack 59 supported by a bracket 56 so as to be movable up and down is meshed with the pinion 58 . The rack 59 is urged upward by a spring 60 stretched between the rack 59 and the bracket 56.
A rack stopper 61 is provided to restrict the amount of upward movement of the rack 9.

The pinion 58 also includes a base 62 of the gripping mechanism 46.
A box chuck 63 as an insertion chuck is fixed to the distal end of the base 62. This box chuck 63 has a rectangular box shape, and one of the air core coils 11 is housed inside the box chuck 63. That is, the air-core coil 11 has lead portions 11b that tend to expand outward due to elasticity at both ends of the coil portion 11a;
llb, the lead portions 11b and llb are attached to the inner surfaces 63 a s 63 on both sides of the box chuck 63.
It is held in pressure contact with a. moreover,
The supply pins 3 are attached to the upper and lower sides of the box chuck 63.
A notch 64.64 is provided which can be fitted into the 7. A through hole 65 is bored in the back surface of the box chuck 63, and a bushing rod 66 is inserted into the through hole 65 so as to be freely protrusive and retractable. The bushing rod 66 is urged in the forward direction by a spring 67, but the bushing rod 66 is moved backward by an air cylinder 68 provided on the base 62. By retracting the air cylinder 68 and advancing the bushing rod 66, the air core coil 11 inside the box chuck 63 can be pushed out from the box chuck 63.

Further, an upper limit stopper 69a is provided at the upper end of the bracket 56 to restrict the amount of upward rotation of the gripping mechanism 46, and a lower limit stopper 69b is provided at the lower end to restrict the amount of downward rotation of the gripping mechanism 46. It is being

On the upper surface of the base 1 located below the coil insertion mechanism 47 configured as described above, there is a conveyor 7 for conveying a printed circuit board 70 in a direction perpendicular to the moving direction of the moving table 4.
1 is provided. In the middle of this conveyor 71 is a board positioning unit 72 that faces the coil insertion mechanism 47.
The printed circuit board 70 carried in by the conveyor 71 is positioned by the insertion detection unit 72, and the air core coil 11 is inserted into the printed circuit board 70 by the coil insertion mechanism 47. There is. The board positioning unit 72 is provided with a detection mechanism for checking whether or not insertion has been performed reliably. This inspection is performed by detecting the coil leads that are exposed under the board.

Next, the operation of the air-core coil winding insertion device configured as described above will be explained.

The wire rod 9 unreeled from the reel 10 of the wire rod supply section 7 is supplied to the peeling mechanism 6 with a constant tension applied by the tension unit 8. The peeling mechanism 6 partially peels off the tip of the supplied wire 9 and the middle portion of the wire 9 at a constant distance from the tip. That is, the coating on the portion of the air-core coil 11 that will become the lead portion 11b111b is peeled off in advance, and the conductive portion is exposed.

The wire rod 9 that has undergone the peeling process is supplied to the winding mechanism 12,
The wire rod clamper mechanism 23 clamps the wire rod 9 in the middle, and the wire rod brake mechanism 24 when the wire rod 9 is running.
Braking is applied by.

Here, when the air cylinder 27 of the wire rod clamper mechanism 23 moves forward and the air cylinder 22 operates with the movable member 26 clamping the midway part of the wire rod 9 to the fixed member 25, the wire rod 9 moves forward together with the moving block 21, The tip of the wire 9 passes between the winding shaft 35 and the clamper 39 and projects forward from the winding shaft 35 by an amount corresponding to the length of the lead portion 11b. Next, when the clamper 39 operates, the tip of the wire 9 is clamped by the winding shaft 35 and the clamper 39, and the tip of the wire 9 is fixed to the winding shaft 35. At this time, at the same time, when the air cylinder 27 of the wire rod clamper mechanism 23 retreats and the movable member 26 retreats, the midway portion of the wire rod 9 becomes unclamped.

Next, in this state, when the winding shaft motor 17a is activated and the winding shaft rotating shaft 17 is rotated, the winding shaft 35 rotates together with the clamper 39, and the wire 9 is wound around the winding shaft 35. At this time, since the winding pitch motor 15g also rotates,
The elevating member 19 is gradually lowered by the winding pitch feed shaft 15. That is, since the wire rod 9 is pitch-fed as it is wound, the wire rod 9 is wound helically around the winding shaft 35 to form the coil portion 11a. As the wire rod 9 is wound, the wire rod 9 is pulled out, but in the wire rod braking mechanism 24, the braking lever 29, which is biased in one direction by the biasing spring 30, is in contact with the wire rod 9, so that the wire rod 9 is not fed. Braking is applied to the wire rod 9, and the wire rod 9 is wound while being applied with a constant tension.

When the winding of the coil portion 11a of the air-core coil 11 is completed,
The air cylinder 27 of the wire clamping mechanism 23 moves forward to clamp the middle part of the wire 9 to the fixed member 25 by the movable member 26, and in this state, the cutter 40 operates to cut the winding end of the wire 9. Therefore, the lead portion 11 is formed by the winding start and winding ends at both ends of the coil portion 11a.
b111b is formed, and then the coil posture guide pin 38
protrudes upward, and the coil posture guide pin 38 is sandwiched between these lead portions 11b and 11b. Therefore, the air-core coil 11 does not rotate around the winding shaft 35, and the position of the air-core coil 11 is restricted. Then, the air core coil 11 falls in the axial direction of the winding shaft 35 by the air jetted from the air nozzle 36a, and fits into the supply pin 37 waiting below. At this time as well, the lead portion 11
The coil attitude guide pin 38 is sandwiched between b and 11b, and the position of the air-core coil 11 is regulated. When the air-core coil 11 falls onto the upper surface of the positioning guide plate 42, the coil posture guide pin 38 descends.

On the other hand, at this time, the box chuck 63 of the gripping mechanism 46 provided in the coil insertion mechanism 47
Start preparing to chuck 1. That is, when the air cylinder 52 operates and the spline shaft 51 rises,
The rack 59 comes into contact with the rack stopper 61. After the rack 59 comes into contact with the rack stopper 61, the spline shaft 5
1 further rises, the rack 59 is moved by the spring 6 (0
is pressed downward against the urging force of. Therefore, the pinion 58 that meshes with the rack 59 rotates counterclockwise, and when the base 62 abuts the upper limit stopper 69a, the gripping mechanism 46 is held in a horizontal state.

The box chuck 63 is at the same height as the positioning guide plate 42 and faces the supply pin 37. Therefore, when the horizontal air cylinder 45a moves forward, the supply pin 3
7 moves laterally and fits into the notches 64 and 64 of the Bo-Shirasu chuck 63, the air core coil 11 fitted to the supply pin 37 is accommodated in the box chuck 63. Since the air-core coil 11 has lead parts 11b and llb at both ends of the coil part 11a, which tend to expand outward due to elasticity, the lead parts 11b and llb touch the inner surfaces 53a and 63a on both sides of the box chuck 63. It is designed to be held in pressure contact. When the air core coil 11 is held by the box chuck 63, the vertical air cylinder 45b
is activated, and the supply pin 37 is lowered. Then, when the supply pin 37 comes out of the air-core coil 11 in the box chuck 63 and retreats downward, the horizontal air cylinder 45a and the vertical air cylinder 45b operate simultaneously, and the supply pin 37
returns to its original state.

When the air core coil 11 is chucked by the box chuck 63 of the gripping mechanism 46 and the air cylinder 52 is actuated to lower the spline shaft 51, the rack 59 is separated from the rack stopper 61, and the rack 59 is raised by the biasing force of the spring 60. do.

Therefore, the pinion 58 that meshes with the rack 59 rotates clockwise, and when the base 62 abuts the lower limit stopper 69b, the gripping mechanism 46 is held in the vertical position. When the spline shaft 51 further descends, the box chuck 63
The air core coil 11 that has been chucked moves forward toward the printed circuit board 70 positioned by the insertion detection unit 72 of the conveyor 71, and when the air cylinder 68 is actuated and the bushing rod 66 moves forward, the air core coil 11 moves forward into the box. The lead portion 11b is pushed out from the chuck 63,
Ilb is inserted into the through hole of the printed circuit board 70. In this case, the lead portions 11b111b of the air-core coil 11 can be positioned with respect to the through holes of the printed circuit board 70 by rotating the box chuck 63 by rotating the spline shaft 51 in forward and reverse directions using the motor 55. Even if the arrangement of the through holes provided in the tube is irregular, it can be easily inserted.

In the above embodiment, the printed circuit board 70 is conveyed by the conveyor 71, and when the printed circuit board 70 is positioned in the insertion detection unit 72, the printed circuit board 70 is positioned and can be moved in the XY force directions with respect to the printed circuit board 70. The air-core coil 11 is inserted by the coil insertion mechanism 47, but the printed circuit board 70 is placed on the XY child table and is movable in the XY force directions, and the coil insertion mechanism 4
7 may be fixed.

Further, in the above embodiment, after the air core coil 11 is formed by the winding shaft 35, the air core coil 11 is moved to the winding shaft 35.
5 and fitted into the supply pin 37 waiting below, and this supply pin 37 was moved laterally to supply the air core coil 11 to the box chuck 63.
It may be configured as shown in FIG. In other words, the winding shaft 3
5 to the notch 43 of the positioning guide plate 42, and after forming the air core coil 11 at the base end of the winding shaft 35,
The air-core coil 11 is dropped to the extension portion 35a of the winding shaft 35. Next, similarly to the supply pin in the embodiment described above, the winding shaft 35 is moved laterally to supply the air-core coil 11 to the box chuck 11 together with the winding shaft 35 . Air core coil 1
1 to the box chuck 63, the air-core coil 11 can be transferred by pulling out the winding shaft 35 upward and retracting it.

Furthermore, according to both of the embodiments, the air core coil 11 is supplied to the box chuck 63 by moving the supply pin 37 or the winding shaft 35 in the lateral direction, but the supply pin 37 or the winding shaft 35 is
5 may be fixed, and the box chuck 63 may be moved laterally so that the box chuck 63 receives the air core coil 11.

[Effects of the Invention] As explained above, according to claim 1 of the present invention, the supply pin or the insertion chuck inserted into the coil portion of the air-core coil is moved in the radial direction of the air-core coil together with the supply pin. When the air-core coil is supplied to the insertion chuck, the spring backup force of the air-core coil presses and holds the lead portion or both sides of the insertion chuck, and then the supply pin is retracted in the axial direction and extracted from the coil portion of the air-core coil. This allows the air-core coil to be delivered to the insertion chuck. Therefore, the air-core coil can be quickly transferred from the winding of the air-core coil to the insertion chuck for inserting it into the printed circuit board, improving work efficiency, eliminating the need for a component feeding device, and improving the configuration. This has the effect of simplifying the process.

According to claim 2, the air-core coil can be transferred to the insertion chuck by the winding shaft for forming the air-core coil, and there is no need to transfer the air-core coil to the supply pin, and the transfer can be performed more quickly. There is.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention, in which FIG. 1 is a perspective view of the entire winding insertion device for an air-core coil, FIG. 2 is a partially sectional side view of the winding mechanism and coil insertion mechanism, and FIG. Figure 3 is a perspective view of the delivery device, Figure 4 is a front view of the wire rod clamped to the winding shaft, Figure 5 is a side view of the same, and Figures 6 and 7 are front views showing the operating state of the coil insertion mechanism. 8 is a perspective view of an air-core coil, and FIG. 9 is a perspective view of a delivery device showing another embodiment of the present invention. 9... Wire rod, 11... Air core coil, 35... Winding shaft, 37... Supply pin, 63... Box chuck (
insertion chuck). Figure 1 Applicant's agent Patent attorney Takehiko Suzue Figure 1

Claims (2)

[Claims] (1) In an air-core coil delivery device that transfers an air-core coil formed by winding a wire around a winding shaft to an insertion chuck for insertion into a printed circuit board, the air-core coil is supplied in the axial direction from the winding shaft. A supply pin inserted into the coil portion of the air-core coil, and a coil posture that is installed parallel to the supply pin and is interposed between a pair of lead portions of the air-core coil to regulate the attitude of the air-core coil in the circumferential direction. A regulation pin, a housing part for accommodating the air-core coil, a box-shaped insertion chuck having both sides on which the lead part is held in pressure contact with the spring backup force of the air-core coil, and a box-shaped insertion chuck that holds the supply pin and the insertion chuck of the air-core coil. It is characterized by comprising a supply means for relatively moving in the radial direction and supplying the air-core coil to the insertion chuck, and a supply pin extraction means for retracting the supply pin in the axial direction and extracting it from the coil portion of the air-core coil. Air core coil delivery device. (2) In an air-core coil delivery device that transfers an air-core coil formed by winding a wire material around a winding shaft to an insertion chuck for insertion into a printed circuit board, the winding shaft for forming the air-core coil and a coil attitude regulating pin installed parallel to the winding axis and interposed between the pair of lead portions of the air-core coil to regulate the attitude of the air-core coil in the circumferential direction; and a housing section for accommodating the air-core coil. and a box-shaped insertion chuck having both sides on which the lead portion is held in pressure contact by the spring backup force of the air-core coil; What is claimed is: 1. A delivery device for an air-core coil, comprising: a supply means for supplying said winding shaft to an insertion chuck; and a winding shaft extraction means for retracting said winding shaft in the axial direction and extracting said winding shaft from a coil portion of an air-core coil.