Soldering device

Abstract

To provide a soldering device that can automatically adjust a supply position of linear solder to a solder supply portion by displacing a solder nozzle.SOLUTION: A soldering device 50 includes: solder nozzle units 1A, 1B configured so that a solder supply position can be automatically adjusted by displacing a solder nozzle 7 for supplying linear solder 59 to a solder supply portion 57 with electric actuators 5a, 5b; and a control device 52 which operates the electric actuators 5a, 5b.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to a soldering device, and more particularly to a soldering device capable of automatically adjusting a solder supply position. [Background technology]

[0002] Soldering devices that use linear solder (thread solder) to solder a board and an electronic component include, for example, one that uses a soldering iron as described in Patent Document 1, and one that uses laser light as described in Patent Document 2. In both soldering devices, in order to supply the linear solder to a supply target such as the tip of the soldering iron or a soldering portion, a solder nozzle is attached to the soldering iron or a soldering head having a laser light irradiation port, and the linear solder is supplied to the supply target through this solder nozzle.

[0003] However, in conventional soldering devices including those described in Patent Documents 1 and 2, the solder nozzle is attached to the soldering head via a support arm consisting of multiple parts connected by screws. Therefore, when it is necessary to adjust the orientation or position of the solder nozzle, such as during teaching before soldering or during regular maintenance, it is necessary to loosen the multiple screws connecting the multiple parts with a tool, adjust the orientation, angle, position, etc. of each part to orient the solder nozzle in the correct direction, and then tighten each screw to fix the solder nozzle in that orientation and position. At this time, all of these operations must be performed manually, making the operation very cumbersome. In addition, when the screws are tightened, frictional forces, etc. can cause the parts to shift position, easily causing the orientation of the solder nozzle to become distorted, making it difficult to maintain adjustment precision. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] JP 2005-238308 A [Patent Document 2] JP 2005-254299 A Summary of the Invention [Problem to be solved by the invention]

[0005] A technical object of the present invention is to provide a soldering device capable of automatically adjusting the supply position of a linear solder relative to a solder supply portion by displacing a solder nozzle. [Means for solving the problem]

[0006] In order to solve the above problems, according to the present invention, there is provided a soldering device characterized by having a solder nozzle unit configured to automatically adjust the solder supply position by displacing a solder nozzle for supplying linear solder to a solder supply location with an electric actuator, and a control device for operating the electric actuator.

[0007] According to one embodiment of the present invention, the soldering device has a CCD camera for capturing an image of the solder supply area, and the control device is configured to, if the image from the CCD camera shows that the positional relationship between the solder supply area and the solder nozzle has deviated from the initially registered state, correct the positional relationship between the solder nozzle and the solder supply area to the initially registered state by operating the electric actuator to displace the solder nozzle.

[0008] According to another embodiment of the present invention, the soldering device is configured such that, when supplying linear solder to the solder supply portion, the solder nozzle is displaced along the solder supply portion by operating the electric actuator to supply the linear solder.

[0009] In the present invention, the solder nozzle unit comprises two bases arranged with a gap between them and which are relatively displaceable in directions approaching or separating from each other and in directions inclined toward each other, a plurality of connecting elements which connect the two bases at a position closer to the side end than the center so that a tensile force acts on both bases in a direction attracting them to each other, at least one electric actuator which has a motor and a shaft which expands and contracts with the rotation of the motor, and is mounted on one of the two bases so that the shaft abuts against the other base and displaces the two bases relatively by the expansion and contraction of the shaft, a fulcrum element which forms a fulcrum when the two bases are displaced relative to each other, and the solder nozzle which is attached to one of the two bases and displaces integrally with that base.

[0010] In the present invention, it is preferable that one of the two bases in the solder nozzle unit is a fixed base for attachment to the soldering head, and the other is a variable base that is displaceable relative to the fixed base, the electric actuator is mounted on the variable base and the solder nozzle is attached to the variable base, and the fixed base is formed with an escape hole through which the solder nozzle can be inserted to be displaceable.

[0011] Furthermore, in the present invention, it is preferable that the system has two electric actuators, one fulcrum element, and a plurality of connecting elements, the two electric actuators being mounted at both ends of a semicircle whose center of curvature is the center of the variable base, the fulcrum element being disposed at a midpoint of the semicircle, and the connecting elements being disposed at least one between the fulcrum element and a first electric actuator located at one end of the semicircle, and between the fulcrum element and a second electric actuator located at the other end of the semicircle, with the connecting elements being disposed in equal numbers at different intervals.

[0012] In the present invention, the system has three electric actuators and a plurality of connecting elements, the three electric actuators being mounted at both ends and a middle position of a semicircle whose center of curvature is the center of the variable base, and the connecting elements may be arranged in equal numbers, with one or more connecting elements being arranged between a third electric actuator located in the middle of the semicircle and a first electric actuator located at one end of the semicircle, and between the third electric actuator and a second electric actuator located at the other end of the semicircle.

[0013] In the present invention, it is preferable that the connecting element is a coil-shaped tension spring, and that the tension spring connects the fixed base and the movable base to each other by engaging hooks at one and the other ends with the fixed base and the movable base, respectively. In this case, it is preferable that the fixed base and the variable base each have a plurality of spring accommodating holes into which the tension spring fits, and that a spring locking pin extending across the plurality of spring accommodating holes is attached to each of them, and that the hook of the tension spring is locked to the spring locking pin.

[0014] In the present invention, the fulcrum element comprises a plunger, which is a ball plunger having a cylindrical body with a screw on its outer periphery and a ball provided at the tip of the body, and it is preferable that the body of the plunger is screwed onto one base so that its position can be adjusted by rotation, and that the ball at the tip abuts against the other base at the position of a recess provided in the base. Effect of the Invention

[0015] According to the present invention, the supply position of the linear solder relative to the soldering site can be automatically adjusted by displacing the solder nozzle by operating the electric actuator with the control device. [Brief description of the drawings]

[0016] [Figure 1] 1 is a front view of a soldering device according to the present invention; [Diagram 2] 11 is a perspective view showing an example of adjusting the position of a solder nozzle relative to a soldering portion. FIG. [Diagram 3] 13 is a perspective view showing another example of adjusting the position of the solder nozzle relative to the soldering portion. FIG. [Figure 4] 6 is a perspective view showing the solder nozzle unit according to the first embodiment, as viewed from diagonally above right in FIG. 5. FIG. [Diagram 5] 5 is a plan view of the solder nozzle unit of FIG. 4. [Figure 6] FIG. 6 is a front view of FIG. 5. [Figure 7] FIG. 6 is a left side view of FIG. 5. [Figure 8] FIG. 8 is a cross-sectional view taken along line VIII-VIII in FIG. 5. [Figure 9] FIG. 6 is a cross-sectional view taken along line IX-IX in FIG. 5. [Figure 10] FIG. 4 is a front view showing an operating state of one of the solder nozzle units. [Figure 11] FIG. 11 is a left side view of FIG. [Figure 12] 13 is a front view showing another operating state of the solder nozzle unit. FIG. [Figure 13] FIG. 13 is a left side view of FIG. 12. [Figure 14] 13 is a front view showing still another operating state of the solder nozzle unit. FIG. [Figure 15] FIG. 15 is a left side view of FIG. 14. [Figure 16] 13 is a front view showing still another operating state of the solder nozzle unit. FIG. [Figure 17] FIG. 17 is a left side view of FIG. 16. [Figure 18] FIG. 11 is a plan view of a second embodiment of a solder nozzle unit according to the present invention. [Figure 19] FIG. 19 is a front view of FIG. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0017] The soldering device according to the present invention will be described in detail below with reference to the drawings. The soldering device 50 shown in Fig. 1 is a laser type soldering device that performs soldering by irradiating a portion to be soldered with a laser beam. This soldering device 50 is a gantry type soldering device, and has a soldering head 51 that can be displaced in four directions, the X direction (front-back direction in the figure), the Y direction (left-right direction in the figure), the Z direction (up-down direction in the figure), and the θ direction (rotational direction), along a guide provided on a machine body 53.

[0018] The soldering head 51 is connected to a laser oscillator 55 via an optical fiber 54, and optical elements (not shown) such as lenses and semi-transparent mirrors are housed inside the soldering head 51 to change or adjust the laser light sent from the laser oscillator 55 to laser light for irradiation, and an irradiation port 56 is provided at the tip of the soldering head 51 to irradiate a soldering portion 57 with laser light whose light diameter, direction, etc. have been adjusted. As shown in FIG. 2, the soldering portion 57 is composed of an annular land 63 provided on a substrate 62 and a pin-shaped terminal 64 of an electronic component inserted into the land 63.

[0019] A fixed base 2 of a solder nozzle unit 1A or 1B (the illustrated example is solder nozzle unit 1A) which will be described in detail later is fixedly attached to the side of the soldering head 51 with screws, and a solder supply device 58 is also attached, and linear solder 59 is sent from the solder supply device 58 through a solder feed tube 60 to the solder nozzle 7, and is supplied from the solder nozzle 7 towards the land 63 or pin-shaped terminal 64 of the soldering portion 57. Therefore, the soldering portion 57 can also be said to be a solder supply portion 57 for supplying linear solder 59.

[0020] The solder nozzle unit 1A is provided with a plurality of electric actuators 5a, 5b for displacing the solder nozzle 7 to adjust its position, orientation, etc., and the electric actuators 5a, 5b are connected to a control device 52 together with the laser oscillator 55, and are configured to be operated by this control device 52 to adjust the position, orientation, etc. of the solder nozzle 7.

[0021] The soldering head 51 is provided with a CCD camera 65, which can capture images of the soldering area 57 and the tip of the solder nozzle 7 through the irradiation port 56 during soldering, as shown in Figure 2. The control device 52 incorporates a program for carrying out the control as shown in FIG. 2 or FIG. That is, in the control shown in FIG. 2, when it is recognized from the image of the CCD camera 65 that the positional relationship between the land 63 and the solder nozzle 7 has deviated from the state at the time of initial registration performed prior to soldering, the control device 52 operates the electric actuators 5a and 5b to displace the solder nozzle 7 in the UX direction, the UY direction, and the UZ direction, thereby correcting the positional relationship between the solder nozzle 7 and the land 63 to the state at the time of initial registration, and then, linear solder 59 is applied from the corrected solder nozzle 7 to the soldering portion 57. 3 is a control for supplying solder 59 to solder an irregular soldering portion 57a, the shape or size of which is different from the shape or size of the land 63 of the normal soldering portion 57, by displacing the solder nozzle 7 in the UY direction along the soldering portion 57a ​​(land 63a) by operating the electric actuators 5a, 5b, and supplying linear solder 59 to the soldering portion 57a, so that the molten solder can easily wet and spread over the irregular soldering portion 57a. Note that when the control of FIG. 3 is performed, it is not necessary to use the image from the CCD camera 65, and therefore the CCD camera 65 may not be provided.

[0022] The X, Y and Z directions, which are the displacement directions of the soldering head 51, and the UX, UY and UZ directions, which are the displacement directions of the solder nozzle 7, are not necessarily the same directions.

[0023] Next, a detailed description will be given of the configuration of the solder nozzle units 1A and 1B. Figures 4 to 17 show the solder nozzle unit 1A of the first embodiment, and Figures 18 and 19 show the solder nozzle unit 1B of the second embodiment.

[0024] As shown in Figures 4 to 9, the solder nozzle unit 1A of the first embodiment has two upper and lower bases 2, 3 arranged with a gap between them and which are relatively displaceable in directions approaching or separating from each other and in directions inclining toward each other, a plurality of connecting elements 4a, 4b which connect the two bases 2, 3 at a position closer to the side ends than their centers so that a tensile force acts between the two bases 2, 3 in a direction attracting each other, the two electric actuators 5a, 5b which have a motor (not shown) inside the housing and a shaft 12 which expands and contracts due to the rotation of the motor, are mounted on one of the two bases 2, 3 and the tip of the shaft 12 abuts against the other base 2, and displace the two bases 2, 3 relatively by the expansion and contraction of the shaft 12, a fulcrum element 6 which forms a fulcrum when the two bases 2, 3 are displaced in the direction inclining relative to each other, and the solder nozzle 7 for supplying linear solder (thread solder) which is attached to one of the bases 3 and displaces integrally with the base 3.

[0025] In the following description, as shown in FIG. 5, the front-to-rear direction of the solder nozzle unit 1A is referred to as the UX direction, and the left-to-right direction is referred to as the UY direction. Furthermore, within the UX direction, the direction toward the rear surface b of the solder nozzle unit 1A is referred to as the UX+ direction, the direction toward the front surface a of the solder nozzle unit 1A is referred to as the UX- direction, and within the UY direction, the direction toward the right side surface d of the solder nozzle unit 1A is referred to as the UY+ direction, and the direction toward the left side surface c of the solder nozzle unit 1A is referred to as the UY- direction.

[0026] Of the two bases 2, 3, the one located at the bottom is a fixed base 2 for fixed attachment to a soldering head 51 of a soldering device 50, as shown in Fig. 1, and the other base located at the top is a variable base 3 that is displaceable with respect to the fixed base 2. The two bases 2, 3 have a square shape in a plan view in the illustrated embodiment, but may have any shape, such as another polygonal shape, a circle, or an ellipse.

[0027] The two electric actuators 5a, 5b are mounted on the variable base 3 at 180 degree intervals at positions symmetrical about the center O of the variable base 3 on the first diagonal D1, which is one of the two diagonals D1, D2, and the upper end of the solder nozzle 7 is inserted into a mounting hole 8 formed in the center of the variable base 3 and fixed with a screw 9, and an escape hole 10 is formed in the center of the fixed base 2 through which the solder nozzle 7 extending downward can be inserted to be displaced. However, the position where the solder nozzle 7 is disposed does not have to be the center of the variable base 3 , and it can be disposed at any position near the side end of the variable base 3 .

[0028] In the following description, of the two electric actuators 5a, 5b, the electric actuator mounted on the front surface a of the variable base 3 will be referred to as the first electric actuator 5a, and the electric actuator mounted on the rear surface b will be referred to as the second electric actuator 5b. In the two electric actuators 5a and 5b, the shaft 12 extends and retracts when the motor is rotated in a forward or reverse direction by the control device 52.

[0029] The fulcrum element 6 consists of a plunger, and the fulcrum element, i.e., plunger 6, is a ball plunger having a cylindrical body 6a with a screw on its outer periphery and a ball 6b attached to the tip of the body 6a. The body 6a of the plunger 6 is screwed into a screw hole formed in the variable base 3 and extends downward from the variable base 3, and the ball 6b at the tip abuts against the fixed base 2 within a recess 13 in the upper surface of the fixed base 2 so as not to shift position, thereby making it possible for the variable base 3 to be displaced in an inclined direction relative to the fixed base 2, with the ball 6b as a fulcrum.

[0030] The plunger 6 has a hexagonal hole 14 in its head, and its position can be adjusted vertically by rotating it with a hexagonal wrench. By adjusting its position, the distance between the two bases 2, 3 can be adjusted at the position where the plunger (fulcrum element) 6 is located.

[0031] The position where the fulcrum element 6 is disposed is a position on the second diagonal line D2 of the variable base 3 where the angle with respect to the first electric actuator 5a and the second electric actuator 5b is 90 degrees. In other words, the two electric actuators 5a, 5b and the fulcrum element 6 are disposed at 90 degree intervals from each other at both ends and a middle position of a semicircle 15 having the center O of the variable base 3 as its center of curvature.

[0032] However, the position (intermediate position) where the fulcrum element 6 is disposed does not have to be exactly in the center of the semicircle 15, and may be a position closer to the first electric actuator 5a side or the second electric actuator 5b side than the center, so long as it is in the middle of the semicircle 15. In this case, the angles between the fulcrum element 6 and the first electric actuator 5a and between the fulcrum element 6 and the second electric actuator 5b are not 90 degrees.

[0033] In addition, the connecting elements 4a, 4b consist of coil-shaped tension springs, and the connecting elements, i.e., tension springs 4a, 4b, connect the two bases 2, 3 by engaging hooks 4c at one and the other ends with one and the other of the two bases 2, 3, respectively, so that a tensile force acts on both bases 2, 3 in a direction pulling them toward each other. In order to attach the tension springs 4a, 4b, the fixed base 2 and the variable base 3 are formed with a plurality of spring accommodating holes 20 for accommodating the ends of the tension springs 4a, 4b, penetrating the fixed base 2 and the variable base 3 in the thickness direction, and a pin accommodating groove 21 is formed on the lower surface of the fixed base 2 and the upper surface of the variable base 3, straddling the plurality of spring accommodating holes 20 along a straight line 22 connecting the center of the fulcrum element 6 and the centers of the first electric actuator 5a and the second electric actuator 5b, and a locking pin 23 is accommodated in each of the pin accommodating grooves 21, and the hooks 4c of the tension springs 4a, 4b are locked to the hooks formed on the locking pins 23. However, it is also possible to directly lock the hooks 4c of the tension springs 4a, 4b to the locking pins 23 without forming the hooks on the locking pins 23.

[0034] In the illustrated example, two tension springs 4a, 4a are arranged in the first connection area 25 between the fulcrum element 6 and the first electric actuator 5a, and two tension springs 4b, 4b are arranged in the second connection area 26 between the fulcrum element 6 and the second electric actuator 5b, but one or three or more tension springs 4a and 4b may be arranged in the first connection area 25 and the second connection area 26, respectively. In that case, it is desirable to make the number of tension springs 4a provided in the first connection area 25 and the number of tension springs 4b provided in the second connection area 26 equal to each other so that the tensile forces of the tension springs 4a, 4b in the first connection area 25 and the second connection area 26 are equal. Alternatively, the tension springs 4a, 4b can be provided in equal numbers not only in two locations, the first connection area 25 and the second connection area 26, but also in a connection area 25a that is symmetrical to the first connection area 25 and a connection area 26a that is symmetrical to the second connection area 26 with respect to the center O, as shown by the dotted line in Figure 4.

[0035] Next, the operation of the solder nozzle unit 1A will be described. Figures 4 to 9 show the initial state of the solder nozzle unit 1A. At this time, the two electric actuators 5a, 5b are in a non-operating state, so that the fixed base 2 and the variable base 3 are parallel to each other and the solder nozzle 7 is positioned on the central axis L of the fixed base 2.

[0036] 10 and 11, when the second electric actuator 5b is operated to shorten its shaft 12 while keeping the first electric actuator 5a in a non-operating state, the variable base 3 tilts with the rear surface b side of the variable base 3 approaching the fixed base 2, with the fulcrum element 6 and the shaft 12 of the first electric actuator 5a as fulcrums, due to the action of the tensile force of the connecting element (tension spring) 4b arranged in the second connecting region 26 (see FIG. 4). As a result, the solder nozzle 7 attached to the variable base 3 also tilts with respect to the central axis L, and the tip of the solder nozzle 7 is displaced toward the UX- side.

[0037] 12 and 13, when the shaft 12 of the second electric actuator 5b is extended from the initial state while the first electric actuator 5a is kept in a non-operating state, the connecting element (tension spring) 4b disposed in the second connecting region 26 (see FIG. 5) is extended, and the variable base 3 tilts in a direction in which the rear surface b side of the variable base 3 moves away from the fixed base 2, with the fulcrum element 6 and the shaft 12 of the first electric actuator 5a as fulcrums. As a result, the solder nozzle 7 attached to the variable base 3 also tilts, and the tip of the solder nozzle 7 is displaced toward the UX+ side.

[0038] 14 and 15, when the first electric actuator 5a is operated to shorten its shaft 12 while the second electric actuator 5b is left in a non-operated state, the tensile force of the tension spring 4a disposed in the first connecting region 25 (see FIG. 4) causes the variable base 3 to tilt in a direction in which the left side surface c of the variable base 3 approaches the fixed base 2, with the fulcrum element 6 and the shaft 12 of the second electric actuator 5b as fulcrums. As a result, the solder nozzle 7 attached to the variable base 3 also tilts, and the tip of the solder nozzle 7 is displaced toward the UY+ side.

[0039] 16 and 17, when the first electric actuator 5a is operated to extend its shaft 12 while the second electric actuator 5b is kept in a non-operated state from the initial state, the connecting element (tension spring) 4a disposed in the first connecting region 25 (see FIG. 4) extends, causing the variable base 3 to tilt with the left side surface c of the variable base 3 as a fulcrum, in a direction away from the fixed base 2, with the fulcrum element 6 and the shaft 12 of the second electric actuator 5b as a fulcrum. As a result, the solder nozzle 7 attached to the variable base 3 also tilts, and the tip of the solder nozzle 7 is displaced toward the UY- side.

[0040] By adjusting the amount of expansion and contraction of the shaft 12, the amount of displacement of the solder nozzle 7 can be adjusted.

[0041] In addition, each tip 12a of the shafts 12, 12 of the first electric actuator 5a and the second electric actuator 5b is formed in a spherical shape so that it can function as a fulcrum, and this spherical tip 12a abuts against the fixed base 2 within a recess formed in the upper surface of the fixed base 2 so as not to shift position.

[0042] Furthermore, when the first electric actuator 5a and the second electric actuator 5b are operated simultaneously to extend and retract their shafts 12, 12 to the same length, the variable base 3 is displaced toward a direction midway between the UX direction and the UY direction, with the fulcrum element 6 as a fulcrum, so that the solder nozzle 7 can be displaced toward that direction. At this time, by making a difference in the amount of expansion and contraction of the shafts 12, 12 of the first electric actuator 5a and the second electric actuator 5b, the variable base 3 and the solder nozzle 7 can be displaced in any direction between the UX direction and the UY direction.

[0043] A second embodiment of the solder nozzle unit according to the present invention is shown in Figures 18 and 19. The solder nozzle unit 1B of the second embodiment differs from the solder nozzle unit 1A of the first embodiment in that a third electric actuator 5c is provided in place of the fulcrum element 6 in the solder nozzle unit 1A.

[0044] Therefore, the solder nozzle unit 1B has three electric actuators 5a, 5b, 5c and four connecting elements 4a, 4b, and the three electric actuators 5a, 5b, 5c are mounted at 90 degree intervals at both ends and the middle of a semicircle 35 whose center of curvature is the center O of the variable base 3, and the connecting elements 4a, 4b connect the variable base 3 and the fixed base 2 on the semicircle 35 side. Specifically, two connecting elements 4a, 4a are disposed in a first connecting area 25 between the third electric actuator 5c and the first electric actuator 5a, and two connecting elements 4b, 4b are disposed in a second connecting area 26 between the third electric actuator 5c and the second electric actuator 5b.

[0045] The structure of the connecting elements 4a, 4b and the structure connecting the fixed base 2 and the variable base 3 by the connecting elements 4a, 4b are the same as in the case of the solder nozzle unit 1A of the first embodiment, and it is also the same as in the case of the first embodiment that one or three or more connecting elements 4a, 4b can be provided in the first connecting area 25 and the second connecting area 26.

[0046] The solder nozzle unit 1B of the second embodiment can be used in the same manner as the solder nozzle unit 1A of the first embodiment by using the third electric actuator 5c as a fulcrum element without extending or retracting its shaft 12, and operating the other first electric actuator 5a and second electric actuator 5b to extend or retract their shafts 12 or hold them in their initial state, and by simultaneously extending and retracting the shafts 12 of the three electric actuators 5a, 5b, 5c by equal amounts, the nozzle can be displaced in a direction along the central axis L of the fixed base 2 (UZ direction).

[0047] In the first embodiment, two electric actuators 5a, 5b are provided, and in the second embodiment, three electric actuators 5a, 5b, 5c are provided, but each embodiment may have only one electric actuator.

[0048] For example, in the first embodiment (see FIG. 5), if the first electric actuator 5a is left and the second electric actuator 5b is replaced with a fulcrum element 6, the variable base 3 and therefore the solder nozzle 7 can be displaced in the UY direction using the two fulcrum elements 6 as fulcrums by extending and contracting the shaft 12 of the first electric actuator 5a. Also, if the second electric actuator 5b is left and the first electric actuator 5a is replaced with a fulcrum element 6, the variable base 3 and therefore the solder nozzle 7 can be displaced in the UX direction using the two fulcrum elements 6 as fulcrums by extending and contracting the shaft 12 of the second electric actuator 5b.

[0049] In the second embodiment (see FIG. 18), when the first electric actuator 5a is left and the second electric actuator 5b and the third electric actuator 5c are each replaced with a fulcrum element 6, the variable base 3 and therefore the solder nozzle 7 can be displaced in the UY direction with the two replaced fulcrum elements as fulcrums by extending and contracting the shaft 12 of the first electric actuator 5a. When the second electric actuator 5b is left and the first electric actuator 5a and the third electric actuator 5c are each replaced with a fulcrum element 6, the variable base 3 and therefore the solder nozzle 7 can be displaced in the UY direction with the two replaced fulcrum elements as fulcrums. By extending and contracting the shaft 12 of the movable actuator 5b, the variable base 3 and therefore the solder nozzle 7 can be displaced in the UX direction using the two replaced fulcrum elements as fulcrums. Furthermore, if the third electric actuator 5c is left remaining and the first electric actuator 5a and the second electric actuator 5b are each replaced with a fulcrum element 6, by extending and contracting the shaft 12 of the third electric actuator 5c, the variable base 3 and therefore the solder nozzle 7 can be displaced in a direction halfway between the UX direction and the UY direction using the two replaced fulcrum elements as fulcrums.

[0050] Although the soldering device 50 is a laser type soldering device, the soldering device of the present invention may be a soldering device that uses a soldering iron to perform soldering. In this case, the solder nozzle unit 1A or 1B is attached to a soldering head having the soldering iron with the solder nozzle 7 facing the tip of the soldering iron, and the orientation and position of the solder nozzle 7 are automatically adjusted so that linear solder is supplied to the optimal position of the tip. [Explanation of symbols]

[0051] 1A,1B Solder nozzle unit 2 Fixed base 3 Variable Base 4a, 4b Connecting element (tension spring) 4c Hook 5a, 5b, 5c Electric actuator 6 Support element (plunger) 6a Body 6b Ball 7 Solder nozzle 10 Relief hole 12 Shaft 13 Recess 15,35 half circumference 20 Spring receiving hole 23 Spring lock pin 50 Soldering equipment 51 Soldering head 52 Control device 57 Solder supply area 59 Solder wire 63 Rand 64 pin terminal 65 CCD camera O center

Claims

1. A soldering device comprising: a solder nozzle unit configured to automatically adjust the solder supply position by displacing a solder nozzle for supplying linear solder to a solder supply portion with an electric actuator; and a control device for operating the electric actuator.

2. the soldering device has a CCD camera for capturing an image of the solder supply portion, the control device is configured to, when the image from the CCD camera indicates that the positional relationship between the solder supply portion and the solder nozzle has deviated from an initially registered state, correct the positional relationship between the solder nozzle and the solder supply portion to the initially registered state by displacing the solder nozzle by operating the electric actuator; 2. The soldering apparatus according to claim 1 .

3. the control device is configured to supply the linear solder to the solder supply portion while displacing the solder nozzle along the solder supply portion by operating the electric actuator.

2. The soldering apparatus according to claim 1 .

4. The solder nozzle unit includes: Two bases arranged with a gap between them and relatively displaceable in directions of approaching or separating from each other and inclining relative to each other; a plurality of connecting elements that connect the two bases at positions closer to the side ends than the center so that a tensile force acts on both bases in a direction in which they are attracted to each other; at least one electric actuator having a motor and a shaft that expands and contracts due to rotation of the motor, the electric actuator being mounted on one of the two bases with the shaft abutting against the other base, and displacing the two bases relatively by expansion and contraction of the shaft; A fulcrum element that forms a fulcrum when the two bases are displaced relative to each other; the solder nozzle attached to one of the two bases and displaced integrally with the base; 2. The soldering apparatus according to claim 1, further comprising:

5. one of the two bases is a fixed base for mounting on the soldering head, and the other is a movable base displaceable relative to the fixed base; The electric actuator is mounted on the variable base, and the solder nozzle is attached to the variable base. The fixed base is formed with a relief hole through which the solder nozzle is inserted so as to be displaceable.

5. The soldering apparatus according to claim 4.

6. The present invention has two electric actuators, one fulcrum element, and a plurality of connecting elements, The two electric actuators are mounted at both ends of a semicircle having a center of curvature at the center of the variable base, The fulcrum element is disposed at a midpoint of the semicircle, The connecting elements are disposed between the fulcrum element and a first electric actuator located at one end of the semicircle, and between the fulcrum element and a second electric actuator located at the other end of the semicircle, with the same number of connecting elements being disposed at different positions.

6. The soldering apparatus according to claim 5,

7. The present invention has three electric actuators and a plurality of connecting elements, The three electric actuators are mounted at both ends and a middle position of a semicircle having a center of curvature at the center of the variable base, The connecting elements are disposed in equal numbers, but at least one each, between a third electric actuator located in the middle of the semicircle and a first electric actuator located at one end of the semicircle, and between the third electric actuator and a second electric actuator located at the other end of the semicircle.

6. The soldering apparatus according to claim 5,

8. 8. The soldering apparatus according to claim 4, wherein the connecting element is a coiled tension spring, the tension spring connecting the fixed base and the movable base to each other by engaging hooks at one and the other ends of the tension spring with the fixed base and the movable base, respectively.

9. The soldering device according to claim 8, characterized in that the fixed base and the variable base are each formed with a plurality of spring accommodating holes into which the tension springs fit, and a spring locking pin is attached to each of the spring accommodating holes so as to extend across the plurality of spring accommodating holes, and a hook of the tension spring is engaged with the spring locking pin.

10. The soldering device described in any one of claims 4 to 7, characterized in that the fulcrum element is a plunger, which is a ball plunger having a cylindrical body with a screw on its outer periphery and a ball at the tip of the body, and the body of the plunger is screwed onto one base so that its position can be adjusted by rotation, and the ball at the tip abuts against the other base at the position of a recess provided on the base.

Images