JP3688927B2 - Thrust generator and soldering device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a thrust generator and a soldering apparatus using a moving magnetic field.
[0002]
[Prior art]
FIG. 10 shows a flat linear motor which is a conventional thrust generating device. As shown in FIG. 2A, this flat linear motor has a plurality of windings 2 mounted on a primary side iron core 1 and a secondary side conductor 3 arranged in parallel with the primary side iron core 1 with a plurality of windings. When the moving magnetic field generated by energizing the wire 2 is driven to move along the primary iron core 1, a plurality of rows of secondary conductors 3 are to be moved as shown in FIG. In addition, a plurality of rows of primary iron cores 1 corresponding to the respective secondary conductors 3 are provided, and a plurality of windings 2 are individually attached to the primary iron cores 1.
[0003]
And, when generating thrust individually from a plurality of windings 2, power is supplied only to the winding 2 of the row where the thrust is desired to be generated. The same number is required.
[0004]
[Problems to be solved by the invention]
In the conventional flat linear motor in which the windings 2 are mounted in each row, the windings that protrude laterally from the slots of the primary side iron core 1 when the primary side iron cores 1 of a plurality of rows are brought close to each other for miniaturization. Since the end portions of 2 come into contact with each other in adjacent rows, the degree of approach is limited.
[0005]
In addition, since the windings 2 are individually wound around the primary iron cores 1 in a plurality of rows, the number of windings 2 increases as the number of rows increases, resulting in poor productivity and wiring of the windings 2. However, it is troublesome and costly.
[0006]
Furthermore, since the same number of power supply sources and inverters as the number of rows of the primary iron cores 1 are required, the cost is increased and the entire unit including them becomes large.
[0007]
In addition, since each flat linear motor controls the movement of the secondary conductor 3 by controlling the supply of electric power to the winding 2, expensive control means are required.
[0008]
The present invention has been made in view of these points, and an object thereof is to provide an inexpensive and compact thrust generating device and a soldering device to which the thrust generating device is applied.
[0009]
[Means for Solving the Problems]
According to the first aspect of the present invention, there is provided a primary iron core in which a plurality of windings are arranged in the thrust generation direction and part of the winding is notched to form a notch, and the primary iron core is fitted into and detached from the notch. Thrust generator comprising: a detachable iron core provided freely; and a secondary-side conductor propelled along the primary-side iron core by a moving magnetic field generated by energizing a plurality of windings when the detachable iron core is fitted. It is.
[0010]
As a result, when the desorbing iron core is fitted and integrated into the cutout portion of the primary iron core, a moving magnetic field is generated by energizing the plurality of windings, and a thrust is generated in the secondary conductor by this moving magnetic field. The secondary conductor moves along the primary iron core. On the other hand, if the desorbing iron core is removed from the cutout portion of the primary iron core, the generation of the moving magnetic field will be insufficient or stopped, and the thrust of the secondary conductor will be reduced or disappear, so the secondary conductor will slow down Or stop.
[0011]
The invention described in claim 2 is the thrust generator according to claim 1, wherein each of the primary side iron core and the secondary side conductor is provided in a plurality of rows, and the common winding is a plurality of rows of primary side iron cores. The detachable iron cores are fitted into and removed from the notches of the primary side cores in a plurality of rows.
[0012]
As a result, since the common winding is mounted over the primary side cores of the plurality of rows, the primary side cores of the plurality of rows can be brought close to each other and arranged in a compact manner, and the secondary side conductors of the plurality of rows can be obtained by detaching the detachable cores. It is possible to individually control the thrust acting on. That is, among the primary side cores in a plurality of rows, in the primary side core in which the desorption core is fitted in the notch, a moving magnetic field is generated by energizing the plurality of windings, and the secondary side conductor in the corresponding row is caused by the moving magnetic field. Since thrust is generated, the secondary conductors in that row move along the primary iron core. On the other hand, among the primary side cores in a plurality of rows, in the primary side core in which the desorption core is removed from the notch, the generation of the moving magnetic field is not sufficient or stops, and the thrust of the secondary side conductor in the corresponding row is also reduced. Or disappear, the secondary conductor slows down or stops.
[0013]
The invention described in claim 3 is the thrust generator according to claim 2, wherein the primary iron core is provided in each of the acceleration zones of a plurality of lanes used for racing a toy car, and the secondary conductor is It is provided for each lane car toy.
[0014]
As a result, in the acceleration zone of multiple rows of lanes, multiple rows of primary iron cores equipped with common windings can be placed close together and installed in a compact manner. The thrust acting on the secondary conductor can be individually controlled. That is, in the lane acceleration zone of the lane having the primary iron core with the desorption core inserted in the notch in the multiple rows of lanes, a moving magnetic field is generated by energizing the windings, and the secondary conductor of the toy car Since the thrust by the moving magnetic field is generated, the car toy is accelerated. On the other hand, in the accelerating zone of the lane having the primary iron core with the desorption core removed from the notch, among the multiple rows of lanes, the generation of the moving magnetic field is insufficient or stops, and the secondary conductor of the toy car is newly added. Since no strong thrust is given, the car toy is decelerated and stopped.
[0015]
According to a fourth aspect of the present invention, there is provided the thrust generator according to the second aspect, further comprising a cutting tool for a machine tool attached to the secondary conductor.
[0016]
As a result, since the common winding is mounted over the primary side cores of the plurality of rows, the primary side cores of the plurality of rows can be brought close to each other and arranged in a compact manner, and the secondary side conductors of the plurality of rows can be obtained by detaching the detachable cores. The thrust acting on the machine can be individually controlled, and the machining time can be shortened by simultaneously using a plurality of rows of cutting tools and shortening the switching time of the tools used. That is, among the primary side cores in a plurality of rows, in the primary side core in which the desorption core is fitted in the notch, a moving magnetic field is generated by energizing the plurality of windings, and the secondary side conductor in the corresponding row is caused by the moving magnetic field. Since thrust is generated, the cutting tool attached to the secondary conductor is pressed against the workpiece, and the workpiece is cut with a predetermined processing pressure. On the other hand, of the primary side cores of multiple rows, the primary side cores with the detachable cores removed from the notches do not generate a moving magnetic field, and the thrust of the secondary side conductors of the corresponding rows disappears. Also disappear.
[0017]
According to the fifth aspect of the present invention, there is provided a primary side iron core in which a plurality of windings are arranged in the thrust generation direction and part of the winding is notched to form a notch, and the primary side iron core is fitted into and detached from the notch. A detachable iron core provided freely, a movable body provided with a primary side iron core and movably provided, and a movement driven by a moving magnetic field generated by energizing a plurality of windings when the detachable iron core is fitted. A thrust generator including a flat secondary conductor that supports a body in a movable manner.
[0018]
As a result, when the detachable iron core is fitted and integrated in the cutout part of the primary iron core, a moving magnetic field is generated by energizing multiple windings, and the secondary conductor does not move, so the thrust by the moving magnetic field is applied to the primary iron core. And the moving body moves on the secondary conductor. On the other hand, if the desorption core is removed from the cutout of the primary side core, the generation of the moving magnetic field will be insufficient or stopped, and the thrust of the primary side core will decrease or disappear, so the moving body will slow down or stop. To do.
[0019]
According to a sixth aspect of the present invention, in the thrust generating device according to the fifth aspect, the primary side iron core is provided in parallel on a movable body that can move in a plane on the secondary side conductor, and the removable core is provided. These are each detachable from the cutouts of the primary side cores in a plurality of rows.
[0020]
As a result, since the common winding is mounted across the primary side cores of the plurality of rows, the primary side cores of the plurality of rows can be brought close to each other and can be compactly assembled into the moving body, and the plurality of rows can be obtained by detaching the desorption cores. The thrust acting on the primary side iron core can be individually controlled to control not only the movement and stop of the moving body but also the moving direction of the moving body. That is, among the primary side iron cores in a plurality of rows, when the desorption cores are respectively fitted to the cutouts of the primary side iron cores at the symmetrical positions of the moving body, they move at the left and right symmetrical positions of the moving bodies by energizing the windings. Since the magnetic field is generated and the secondary conductor does not move, the thrust by the moving magnetic field acts on the primary iron core in the left-right symmetrical position, and the moving body goes straight on the secondary conductor. On the other hand, when the desorption core is fitted only to the cutout portion of the primary iron core on the left and right sides, and the desorption core is removed from the cutout portion of the other primary iron core, a moving magnetic field is generated on one side of the moving body. Therefore, the moving body changes direction with the side where the moving magnetic field is not generated as a fulcrum. Further, if a moving magnetic field is generated at a left-right symmetrical position of the moving body, it goes straight in a direction different from the initial direction. When the desorption core is removed from the cutouts of all the primary side cores, the moving body stops.
[0021]
According to the seventh aspect of the present invention, there is provided a solder bath for storing molten solder, a plurality of windings provided along the outer surface of the solder bath, arranged along the direction of movement of the molten solder, and partially cut away. Of the primary side iron core in which the notch portion is formed, a demountable iron core that is detachably provided in the notch portion of the primary side iron core, and a demountable iron core that is provided along the inner surface of the solder bath in parallel with the primary side iron core. Solder having a molten solder passage for guiding molten solder as a secondary conductor propelled along a primary iron core by a moving magnetic field generated by energizing a plurality of windings in a fitted state onto a molten solder surface Attachment device.
[0022]
As a result, when the desorbing iron core is fitted and integrated into the cutout portion of the primary iron core, a moving magnetic field is generated by energizing a plurality of windings, and this moving magnetic field generates thrust in the molten solder in the molten solder passage. The molten solder moves in the molten solder passage along the primary iron core. On the other hand, if the desorbing iron core is removed from the cutout of the primary iron core, the generation of the moving magnetic field will be insufficient or stopped, and the thrust against the molten solder will be reduced or disappear, so the molten solder will be supplied onto the molten solder surface. Not.
[0023]
According to an eighth aspect of the present invention, in the soldering apparatus according to the seventh aspect, each of the primary side iron core and the molten solder passage is provided in a plurality of rows, and a common winding is provided over a plurality of rows of the primary side iron cores. The attached and detached iron cores are freely fitted into and removed from the cutout portions of the plurality of rows of primary side iron cores.
[0024]
As a result, a common winding is mounted across multiple rows of primary iron cores, so that multiple rows of primary iron cores can be brought close to each other, and a plurality of molten solder passages can be arranged in a compact manner. The thrust acting on the molten solder in the plurality of rows of molten solder passages can be individually controlled, and a plurality of soldering locations for local soldering can be selected. That is, among the primary side cores in a plurality of rows, in the primary side core in which the desorption core is fitted in the notch, a moving magnetic field is generated by energizing the plurality of windings, and the moving magnetic field causes the molten solder in the molten solder passage to Thrust is generated, and the molten solder moves along the primary iron core in the molten solder passage and is supplied onto the molten solder surface. On the other hand, in the primary side core with the desorption core removed from the notch, the generation of the moving magnetic field is insufficient or stops, and the thrust against the molten solder is reduced or disappears. Is not supplied on the molten solder surface.
[0025]
According to a ninth aspect of the present invention, in the soldering apparatus according to the eighth aspect of the present invention, a plurality of nozzles respectively provided at the tip portions of the plurality of rows of molten solder passages are provided.
[0026]
As a result, of the plurality of primary side iron cores, the molten solder that has moved in the molten solder passage along the primary side core in which the desorption core is fitted to the notch is supplied onto the molten solder surface by the corresponding nozzle. From this, it is possible to select a soldering location simply by selecting the desorption of a plurality of desorption cores.
[0027]
According to a tenth aspect of the present invention, in the soldering apparatus according to the eighth aspect, a nozzle is provided which is movably provided between the front end openings of the plurality of rows of molten solder passages.
[0028]
As a result, the molten solder that has moved in the molten solder passage along the primary side core in which the desorption core is fitted to the notch among the plurality of primary side cores is supplied onto the molten solder surface by a movable nozzle. Therefore, for example, when a lead that protrudes from the electronic component mounted on the upper surface of the board to the lower surface is locally soldered with a nozzle, such as a double-sided mounting board, the nozzle is not necessary for the electronic component mounted on the lower surface of the board. Will not abut.
[0029]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, the present invention will be described with reference to various embodiments shown in FIGS.
[0030]
FIGS. 1 to 3 show an embodiment of a thrust generator, 11 is a linear primary iron core, and primary iron cores 11 divided into a plurality of rows are arranged with spacers 12 interposed therebetween. The primary iron cores 11 in each row are formed in a comb-like shape, and teeth 14 and slots 15 are alternately formed over the entire length of a bottom iron (back iron, yoke) 13.
[0031]
The bottom irons 13 of the primary iron cores 11 of each row are notched, and a notch 16 is formed in each of the primary iron cores 11, and the demounting iron core 17 is manually or automatically provided in the notch 16 of each primary iron core 11. Each can be fitted and removed freely. The detachable iron core 17 fitted in the notch 16 is integrated with the primary iron core 11 by a fixing means (not shown) to form a part of the bottom iron 13.
[0032]
When the detachable iron core 17 is manually fitted, it is fixed by bolting or the like, and when the detachable iron core 17 is automatically fitted, the detachable iron core 17 of each row is selected by a fluid pressure actuator or an electromagnetic actuator. It is good to drive automatically.
[0033]
A common winding 18 is mounted over the slot 15 of each primary iron core 11 so as to cover the entire primary iron core 11 divided into a plurality of rows. A plurality of windings 18 are arranged in the longitudinal direction of each primary iron core 11, that is, in the thrust generation direction, and are moved by energization of a three-phase alternating current to the plurality of windings 18 in the fitted state of the desorption core 17. A single power supply is connected to each winding 18 via an inverter so that a magnetic field is generated.
[0034]
A plurality of rows of secondary-side conductors 21 propelled along the primary-side iron cores 11 by a moving magnetic field are provided in parallel to the teeth 14 of the primary-side iron cores 11 of each row to constitute a flat plate linear motor. Has been.
[0035]
Each secondary conductor 21 has a nonmagnetic conductor plate 22 located on the side facing the primary iron core 11, and a magnetic conductor plate 23 such as an iron plate located on the opposite side.
[0036]
Next, the operation of the embodiment shown in FIGS. 1 to 3 will be described. Of the primary side cores 11 in a plurality of rows, the primary side core 11 in which the detachable cores 17 are fitted and integrated in the notches 16 are integrated. In this case, a moving magnetic field is generated by energization of a plurality of windings 18 by three-phase alternating current, and a thrust due to the moving magnetic field is generated in the secondary side conductor 21 of the corresponding row. Moves along the primary iron core 11.
[0037]
On the other hand, among the primary side cores 11 in the plurality of rows, in the primary side core 11 in which the desorption core 17 is removed from the notch 16, the generation of the moving magnetic field is not sufficient or stopped depending on the size of the notch 16, Since the thrust of the secondary side conductors 21 in the corresponding row also decreases or disappears, the secondary side conductors 21 decelerate or stop.
[0038]
In this way, the primary side iron core 11 is divided into two or more blocks that are long in the traveling direction of the moving magnetic field, and the windings 18 are arranged so as to cover the entire divided primary side iron core 11, and By arbitrarily detaching the detachable core 17 of the primary side core 11, the generation of the moving magnetic field is controlled, and the secondary side conductor 21 corresponding to the primary side core 11 corresponding to the arbitrary row of the detachable core 17 is selectively attached. To give thrust.
[0039]
In other words, power is supplied in advance to the plurality of windings 18 wound so as to cover the entire primary side core 11 divided into a plurality of rows, and the primary side cores 11 other than the row to which thrust is to be applied are detached. By detaching the iron core 17, thrust is generated only in an arbitrary row where the desorbing iron core 17 remains.
[0040]
In short, since the common winding 18 is mounted across the plurality of rows of primary iron cores 11, the plurality of rows of primary iron cores 11 can be arranged in close proximity to each other and arranged in a compact manner. The thrust acting on the secondary conductor 21 can be individually controlled.
[0041]
Next, FIG. 4 shows another embodiment relating to the thrust generator, and the primary iron cores 11 are respectively provided in the acceleration zones 32 of the lanes 31 of a plurality of rows used for the racing of the toy car. The toy car (racing car) 33 is provided with secondary conductors 21 respectively.
[0042]
In this embodiment, a plurality of common windings 18 are mounted in the thrust generation direction across the plurality of rows of primary side iron cores 11, and the detachable iron cores 17 can be fitted and removed in the cutout portions of the primary side cores 11 of each row, respectively. These points are the same as those in FIG.
[0043]
In the embodiment shown in FIG. 4, in the acceleration zone 32 of the lanes 31 of the plurality of rows, the plurality of rows of primary iron cores 11 having the common windings 18 can be placed close to each other and installed compactly. The thrust acting on the secondary conductor 21 of the automobile toy 33 in each lane 31 can be individually controlled by detaching the detachable iron core 17.
[0044]
That is, among the multiple rows of lanes 31, in the acceleration zone 32 of the lane 31 having the primary side core 11 fitted with the desorption core 17 in the notch, a moving magnetic field is generated by energization of the three-phase alternating current to the plurality of windings 18. As a result, a thrust generated by the moving magnetic field is generated in the secondary conductor 21 of the car toy 33, and the car toy 33 is accelerated.
[0045]
On the other hand, in the acceleration zone 32 of the lane 31 having the primary iron core 11 from which the desorbing iron core 17 is removed from the cutout portion among the multiple rows of lanes 31, the generation of the moving magnetic field becomes insufficient or stops, Since no new thrust is applied to the secondary conductor 21, the car toy 33 is decelerated and stopped.
[0046]
Next, FIG. 5 shows still another embodiment relating to the thrust generator, and each of the plurality of rows of the primary side iron cores 11 and the secondary side conductors 21 at positions facing the workpiece 41 rotated by a lathe. Are arranged in the axial direction of the workpiece 41.
[0047]
The primary side iron cores 11 of each row have a detachable iron core 17 that can be freely inserted into and removed from the cutout portions 16, respectively, and a plurality of common windings 18 are mounted in the direction of thrust generation throughout the plurality of rows of primary side iron cores 11. The points are the same as those in FIG.
[0048]
The secondary side conductor 21 of each row is provided with a left cutting tool 42, a screw cutting tool 43, a taper cutting tool 44, a flat cutting tool 45 and a right cutting tool 46 as cutting tools for machine tools.
[0049]
Further, the secondary side conductors 21 in each row receive an elastic biasing force in a direction in which the secondary side conductors 21 recede from the workpiece 41 by a spring (not shown) or the like.
[0050]
In addition, a plurality of machining amount confirmation sensors 47 for detecting the amount of machining of the workpiece 41 are arranged facing each other in the machining portions of the cutting tools in each row.
[0051]
In the embodiment shown in FIG. 5, since the common winding 18 is mounted over the plurality of rows of primary iron cores 11, the plurality of rows of primary iron cores 11 can be compactly arranged close to each other. The secondary conductor 21 and the cutting tool can also be arranged close to each other with high density.
[0052]
In addition, the thrust acting on multiple rows of secondary conductors 21 can be individually controlled by attaching / detaching the detachable iron core 17 when turning in and out of various tools during lathe machining, allowing simultaneous use of multiple rows of cutting tools, switching time of tools used Machining time can be shortened by shortening.
[0053]
That is, among the primary side cores 11 of the plurality of rows, in the primary side core 11 in which the desorption core 17 is fitted into the notch 16, the moving magnetic field is generated by energization by the three-phase alternating current to the plurality of windings 18, and the corresponding row Since a thrust due to the moving magnetic field is generated in the secondary conductor 21 of the machine, the cutting tool attached to the secondary conductor 21 is pressed against the workpiece 41 and the workpiece 41 is cut by a predetermined working pressure. To do.
[0054]
On the other hand, in the primary side cores 11 in a plurality of rows, the primary side core 11 with the desorption core 17 removed from the notch 16 does not generate a moving magnetic field, and the thrust of the secondary side conductors 21 in the corresponding row also disappears. The cutting tool does not move forward with respect to the workpiece 41, and no processing pressure is generated.
[0055]
Next, FIG. 6 shows still another embodiment relating to the thrust generator, in which a rectangular plate-like moving body 51 in which a plurality of rows of primary primary cores 11 are arranged in parallel is a flat secondary conductor. The upper surface of 21 is movably provided.
[0056]
Spherical rolling wheels 52 are rotatably provided by spherical bearings 53 on the lower surfaces of the four corners of the moving body 51, and the moving body 51 is provided so as to be movable in a planar manner on the secondary conductor 21. .
[0057]
A plurality of common windings (not shown) are provided in the thrust generation direction across the plurality of rows of primary iron cores 11, and the detachable iron cores 17 are provided in the notches 16 in which a part of each row of the primary iron cores 11 is cut. The points provided so as to be detachable are the same as those in FIG.
[0058]
When the detachable iron core 17 is fitted and integrated into the notch 16 of the primary side iron core 11, a moving magnetic field is generated by energization of three-phase alternating current to multiple windings, but the secondary side conductor 21 does not move, so the primary side A thrust generated by the moving magnetic field acts on the iron core 11, and the movable body 51 that is movable by the rolling wheels 52 moves on the secondary conductor 21.
[0059]
On the other hand, if the detachable iron core 17 is removed from the cutout portion 16 of the primary side core 11, the generation of the moving magnetic field becomes insufficient or stops, and the thrust acting on the primary side core 11 becomes small or disappears. Will slow down or stop.
[0060]
In the embodiment shown in FIG. 6, since a common winding is mounted over a plurality of rows of primary iron cores 11, the plurality of rows of primary iron cores 11 are brought close to each other and are compactly incorporated into the moving body 51. In addition, the thrust acting on the primary side cores 11 in a plurality of rows can be individually controlled by detaching the detachable iron core 17, so that not only the moving and stopping of the moving body 51 but also the moving direction of the moving body 51 can be controlled.
[0061]
That is, when the detachable iron core 17 is fitted into the cutout portion 16 of the primary side iron core 11 at the symmetrical position of the moving body among the plurality of rows of the primary side iron cores 11, A moving magnetic field is generated at the symmetrical position, and the secondary conductor 21 does not move. Therefore, a thrust by the moving magnetic field acts on the primary iron core 11 at the symmetrical position, and the moving body 51 goes straight on the secondary conductor 21.
[0062]
On the other hand, if the desorption core 17 is fitted only to the notch 16 of the primary iron core 11 on the left and right sides, and the desorption core 17 is removed from the notch 16 of the other primary iron core 11, the generation of the moving magnetic field moves. Since it occurs on one side of the body 51, the moving body 51 changes its direction with the spherical rolling wheel 52 on the side where no moving magnetic field is generated as a fulcrum. Further, when a moving magnetic field is generated at a left-right symmetrical position of the moving body 51, the straight line travels in a direction different from the initial direction. When the detachable iron core 17 is removed from the notches 16 of all the primary side iron cores 11, the moving body 51 stops.
[0063]
Thus, by making the detachment of the detachable iron core 17 with respect to the primary side cores 11 in a plurality of rows asymmetrical, it is possible to provide a linear motor that can take the thrust direction also in the direction intersecting the traveling direction of the moving body 51, It can move freely in the X, Y, and θ directions on the plane.
[0064]
Next, FIG. 7 and FIG. 8 show an embodiment relating to the soldering apparatus, and a plurality of lines that are linear in the vertical direction along the outer side surface of the vertical plate portion 62a of the solder tank 62 that accommodates the molten solder 61. Primary side iron cores 11 are arranged in a horizontal direction via spacers 12, and the primary side iron cores 11 of each row are provided with cutout portions 16 in which a part of the bottom iron 13 is cut out. The detachable iron cores 17 are detachable, and a plurality of common windings 18 are arranged along the molten solder moving direction throughout the primary iron cores 11 of each row.
[0065]
A plurality of rows of molten solder passages 63 are provided along the inner surface of the vertical plate portion 62a of the solder bath 62 in parallel with the plurality of rows of primary iron cores 11, and the solder bath is provided via these molten solder passages 63. Secondary side iron cores 64 fixed to 62 are respectively arranged.
[0066]
The molten solder passage 63 sucks the molten solder 61 in the solder bath 62 from the suction port 65 at the lower end, and guides the molten solder 61a in the molten solder passage 63 onto the molten solder surface 61b. The molten solder 61a in 63 is propelled upward along the primary side iron core 11 by a moving magnetic field generated by energization of a three-phase alternating current to the plurality of windings 18 in the fitted state of the desorption core 17. It is a conductor.
[0067]
Further, a plurality of nozzles 67 communicating with the discharge ports 66 at the respective upper end portions of the plurality of rows of molten solder passages 63 are provided at the upper end portion of the secondary side iron core 64, respectively. These nozzles 67 guide the molten solder 61a to at least the upper end opening 68, and are nozzles for local soldering in which the molten solder 61a may be jetted from the upper end opening 68.
[0068]
In the embodiment shown in FIG. 7 and FIG. 8, since the common winding 18 is mounted across the plurality of rows of the primary cores 11, the plurality of rows of the primary cores 11 are brought close to each other, so Solder passages 63 can be arranged in a compact manner, and the thrust acting on the molten solder 61a in multiple rows of molten solder passages 63 can be individually controlled by detaching the detachable iron core 17, and multiple soldering locations can be selected for local soldering etc. it can.
[0069]
That is, among the primary side cores 11 of the plurality of rows, in the primary side core 11 in which the desorption core 17 is fitted into the notch 16, the moving magnetic field is generated by energization of the three-phase alternating current to the plurality of windings 18, and the moving magnetic field As a result, a thrust is generated in the molten solder 61a in the molten solder passage 63, and the molten solder 61a moves upward in the molten solder passage 63 along the primary side iron core 11, and is supplied onto the molten solder surface 61b by the nozzle 67. Then, the soldering object inserted from the upper side into the upper end opening 68 of the nozzle 67 is soldered.
[0070]
For example, since the lead of an electronic component mounted on the upper surface of a printed wiring board as an object to be soldered protrudes from the lower surface of the substrate, the lead is inserted into the upper end opening 68 of the nozzle 67 and locally soldered to the lower surface of the substrate. Attach.
[0071]
On the other hand, in the primary iron core 11 from which the desorbing iron core 17 is removed from the notch 16, the generation of the moving magnetic field is not sufficient or is stopped, and the thrust for raising the molten solder 61a in the molten solder passage 63 is reduced or disappears. Therefore, the molten solder 61a in the corresponding molten solder passage 63 is not supplied onto the molten solder surface 61b.
[0072]
Thus, among the plurality of primary side iron cores 11, the molten solder 61a that has moved in the molten solder passage 63 along the primary side iron core 11 in which the detachable iron core 17 is fitted in the notch 16 is obtained by the corresponding nozzle 67. Since it is supplied onto the molten solder surface 61b, it is possible to select a soldering location only by selecting the desorption of the desorption cores 17.
[0073]
Next, FIG. 9 shows another embodiment relating to the soldering apparatus, which is an embodiment substantially similar to the embodiment shown in FIGS. 7 and 8, but with a plurality of rows of opening openings of the molten solder passages 63. The difference is that a nozzle 67a is movably provided between each discharge port 66 as a part.
[0074]
This nozzle 67a is moved in advance on the molten solder passage 63 corresponding to the primary side core 11 to which the desorption core 17 is fitted.
[0075]
The molten solder 61a moved in the molten solder passage 63 along the primary side iron core 11 in which the desorption core 17 is fitted to the notch 16 among the plurality of primary side iron cores 11 is discharged from the discharge port 66 of the molten solder passage 63. It is supplied onto the molten solder surface 61b by the nozzle 67a that has been moved to (1).
[0076]
Therefore, for example, when a lead that protrudes from the electronic component mounted on the upper surface of the board to the lower surface is locally soldered by the nozzle 67a, such as a double-sided mounting board, an unnecessary nozzle for the electronic component mounted on the lower surface of the board is used. Can prevent the contact.
[0077]
【The invention's effect】
According to the first aspect of the present invention, the movement or stoppage of the secondary conductor can be controlled at low cost only by selecting the detachment of the detachable iron core with respect to the cutout portion of the primary iron core.
[0078]
According to the invention described in claim 2, since the common winding is mounted over the primary side cores of the plurality of rows, the primary side cores of the plurality of rows can be arranged close to each other and arranged in a compact manner. The thrust acting on a plurality of rows of secondary conductors can be individually controlled.
[0079]
According to the invention described in claim 3, in the acceleration zone of a plurality of rows of lanes, the plurality of rows of primary iron cores on which the common windings are mounted can be placed close to each other, and can be installed compactly. The thrust acting on the secondary conductor of the toy car in each lane can be individually controlled.
[0080]
According to the invention of claim 4, since the common winding is mounted over the primary side cores of the plurality of rows, the primary side cores of the plurality of rows can be arranged close to each other and arranged in a compact manner, and by detaching the detachable cores The thrust acting on the secondary side conductors in a plurality of rows can be individually controlled, and the machining time can be shortened by simultaneously using a plurality of rows of cutting tools and shortening the switching time of the tools used.
[0081]
According to the fifth aspect of the present invention, the moving or stopping of the moving body can be controlled at low cost only by selecting the detaching of the detaching core with respect to the cutout portion of the primary side core provided on the moving body.
[0082]
According to the invention described in claim 6, since the common winding is mounted over the primary side cores of the plurality of rows, the primary side cores of the plurality of rows can be brought close to each other and can be compactly incorporated into the moving body, The thrust acting on the primary side cores in a plurality of rows can be individually controlled by detaching the detachable iron core, so that not only the movement and stop of the mobile body but also the moving direction of the mobile body can be controlled.
[0083]
According to the seventh aspect of the present invention, the supply or stop of the molten solder on the molten solder surface can be controlled at low cost only by selecting the desorption of the desorption core with respect to the notch of the primary side core.
[0084]
According to the eighth aspect of the invention, since the common winding is mounted over the plurality of rows of primary iron cores, the plurality of rows of primary iron cores can be brought close to each other, and the plurality of molten solder passages can be arranged in a compact manner. At the same time, the thrust acting on the molten solder in the plurality of rows of molten solder passages can be individually controlled by detaching the detachable iron core, and a plurality of soldering locations for local soldering can be selected.
[0085]
According to the ninth aspect of the present invention, the molten solder that has moved in the molten solder passage along the primary iron core in which the desorbing iron core is fitted to the notch portion among the plurality of primary iron cores is melted by the corresponding nozzle. Since it supplies on a solder surface, a soldering location can be selected only by selecting the desorption of several desorption cores.
[0086]
According to the tenth aspect of the invention, the molten solder that has moved in the molten solder passage along the primary iron core in which the desorbing iron core is fitted to the cutout portion among the plurality of primary iron cores is moved by the movable nozzle. Since it is supplied onto the molten solder surface, it is mounted on the lower surface of the board when locally soldering the lead protruding from the electronic component mounted on the upper surface of the board, such as a double-sided mounting board, with a nozzle. This can prevent the unnecessary nozzles from coming into contact with the electronic components.
[Brief description of the drawings]
FIG. 1 is a perspective view showing an embodiment of a thrust generator according to the present invention.
FIG. 2 is a cross-sectional view of the thrust generator.
FIG. 3 is a front view of the thrust generator.
FIG. 4 is a plan view showing another embodiment of the thrust generator according to the present invention.
FIG. 5 is a plan view showing still another embodiment of the thrust generator according to the present invention.
6A is a plan view showing still another embodiment of the thrust generator according to the present invention, and FIG. 6B is a cross-sectional view thereof.
FIG. 7 is a perspective view showing an embodiment according to the soldering apparatus of the present invention.
FIG. 8 is a sectional view of the soldering apparatus.
FIG. 9 is a perspective view showing another embodiment of the soldering apparatus according to the present invention.
10A is a side view showing a conventional thrust generator, and FIG. 10B is a front view thereof.
[Explanation of symbols]
11 Primary iron core
16 Notch
17 Desorption core
18 windings
21 Secondary conductor
31 lanes
32 Acceleration zone
33 car toys
42-46 Tool as a cutting tool
51 mobile
61 Molten solder
61a Molten solder as secondary conductor
61b Molten solder surface
62 Solder bath
63 Molten solder passage
67, 67a nozzle

Claims (10)

A primary side iron core in which a plurality of windings are arranged in the thrust generation direction and part of the windings are notched to form a notch;
A desorbing iron core that is detachably provided in the notch of the primary iron core;
A thrust generator comprising: a secondary side conductor that is propelled along a primary side iron core by a moving magnetic field generated by energization of a plurality of windings when the desorption core is fitted. Each of the primary side iron core and the secondary side conductor is provided in a plurality of rows,
The common winding is mounted across multiple rows of primary cores,
The thrust generator according to claim 1, wherein the detachable iron cores are detachable from the cutout portions of the primary side cores in a plurality of rows. The primary iron cores are provided in the acceleration zones of multiple rows of lanes used for racing toys,
The thrust generating device according to claim 2, wherein the secondary conductor is provided in each toy car toy. 3. The thrust generator according to claim 2, further comprising a cutting tool for a machine tool attached to the secondary conductor. A primary side iron core in which a plurality of windings are arranged in the thrust generation direction and part of the windings are notched to form a notch;
A movable core provided movably provided with a detachable iron core and a primary side iron core that are detachably provided in the cutout portion of the primary side iron core;
A thrust generating device comprising: a flat plate-like secondary conductor that movably supports a moving body driven by a moving magnetic field generated by energizing a plurality of windings in a fitted state of a detachable iron core . The primary side iron core is provided in parallel with a plurality of rows in a movable body that can move in a plane on the secondary side conductor,
6. The thrust generating device according to claim 5, wherein the detachable iron cores are detachable from the cutout portions of the plurality of rows of primary side iron cores. A solder bath for storing molten solder;
A primary iron core provided along the outer surface of the solder bath and having a plurality of windings arranged along the molten solder moving direction and partially cut away to form a cutout;
A desorbing iron core that is detachably provided in the notch of the primary iron core;
As a secondary conductor that is provided along the inner surface of the solder tank in parallel with the primary iron core, and is propelled along the primary iron core by a moving magnetic field generated by energizing a plurality of windings when the desorption core is fitted. And a molten solder passage for guiding the molten solder on the molten solder surface. Each of the primary side iron core and the molten solder passage is provided in a plurality of rows,
The common winding is mounted across multiple rows of primary cores,
The soldering apparatus according to claim 7, wherein the detachable iron cores are detachable from the cutout portions of the primary side cores in a plurality of rows. 9. The soldering apparatus according to claim 8, further comprising a plurality of nozzles respectively provided at the tip portions of the plurality of rows of molten solder passages. 9. The soldering apparatus according to claim 8, further comprising a nozzle that is movably provided between the front end openings of the plurality of rows of molten solder passages.

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