JPH08309521A - Automatic soldering equipment - Google Patents

Abstract

PURPOSE: To rapidly, accurately and automatically solder a projecting shaped part, etc., especially, without manual aid. CONSTITUTION: A loading plate 5 where an object A to be soldered is supported is supported pivotally and rotatably to a base stand 1, a drive copying cam 7 having a similar shape with the placing plate 5 is rotated at a constant peripheral speed on a rotary shaft 3 by a rotation driving means composed of a motor 22 and a chain 25, etc., and a soldering iron 44 is installed so as to copy the soldering face of the object A to be soldered from the drive copying cam 7 installed on the same shaft 3 and a copying cam 11 having the similar shape with the cam 7.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an automatic soldering device for quickly and accurately soldering convex deformed parts and the like.

[0002]

2. Description of the Related Art In the conventional soldering method, when two members are welded, a method in which the thread solder is melted by a soldering iron kept at an appropriate temperature and the two members are welded is mainly used. Is. The welding work is performed in two ways, one is a manual work and the other is an automatic work. However, in the case of performing it automatically, in the case of solder welding two flat plates, etc. There is an automatic soldering device that linearly welds seams or chain solders when spot welding.

However, in most cases, soldering of convex deformed parts, for example, soldering of two hemispheres or a can having a part of a curve is performed manually. As mentioned above, there are those that automatically perform work such as linear welding and spot welding, but it is a continuous solder welding of members of a fixed shape and various convex shapes. There is no one that can be automatically welded to solder to deformed parts.

[0004]

As described above, when soldering convex irregular-shaped parts or the like, in the conventional soldering method, there is no problem in the soldering work such as linear welding or spot welding. However, when soldering a convex deformed part such as a can body having two hemispheres or a part of a curve, there was a problem such as a defective sealing can due to uneven welding of the solder. In addition, there are various problems such as time-consuming soldering work and fatigue of workers due to this.

The present invention is intended to solve the above-mentioned problems, and an object of the present invention is, as described above, various convex-shaped deformed parts such as two hemispheres and a can body having a partial curve. Etc. are automatically solder-welded, the linear velocity of the solder is kept constant, melting and welding conditions are appropriately set, and the corners of a complicated shape can be smoothly and evenly soldered, and rapid solder-welding work can be performed. The purpose is to avoid fatigue during manual soldering and to improve man-hour efficiency.

[0006]

SUMMARY OF THE INVENTION An automatic soldering device of the present invention is intended to achieve the above-mentioned object, which means is a rotating means for supporting an object to be soldered and the rotating means for the object to be soldered. The rotary driving means for rotating the solder surface so that the peripheral speed of the solder surface is constant, and the soldering iron driving means for moving the soldering iron following the soldering surface of the object to be soldered are provided.

The rotation driving means is composed of a power transmission means rotated by a motor, and a driving copying cam formed in a shape similar to the solder surface of the solder object provided on the rotation means. The power transmission means is brought into pressure contact with the drive copying cam so that the peripheral speed of the object to be soldered becomes constant. The soldering iron driving means,
It comprises a copying cam formed in a shape similar to the solder surface of the soldering object provided on the rotating means, and a soldering iron supporting means pressed against the copying cam by a biasing means. Allow the iron to move along the solder surface.

[0008]

In the automatic soldering device of the present invention constructed as described above, the rotating means places the object to be soldered on the mounting plate pivotally supported by the base, and drives the motor or the like provided on the base. Thus, when the drive copying cam and the flexible rack, which drive the roller and the pinion gear and are provided in contact therewith, are rotated, the soldered object placed on the placing plate is rotated. Further, since the rotation driving means is biased in the axial direction by the constant tension spring, the driving copying cam and the rack are smoothly rotated.

Further, since the two rollers provided on the soldering iron support plate are provided in contact with the copying cam provided at a substantially intermediate position coaxial with the driving copying cam, the rotation of the driving copying cam is prevented. Follow and rotate. Since the driving copying cam has a similar shape to the placing plate on which the soldered object is placed, the roller provided on the soldering iron supporting plate operates so that its peripheral edge is oriented substantially in the axial center direction. And the peripheral speed becomes constant.

Therefore, soldering is carried out at a constant speed along the peripheral surface of the soldering object with the soldering iron provided on the soldering iron mounting plate being in contact with the soldering object. Further, since the soldering iron is configured to be urged in the axial direction by a constant tension spring so as to maintain a proper contact state with the object to be soldered, the soldering can be smoothly performed by the rotating operation. .

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An automatic soldering apparatus according to the present invention will be described below with reference to the drawings based on embodiments. 1 is an overall front view of the automatic soldering device of the present invention, FIG. 2 is an overall side view of the automatic soldering device, FIG. 3 is a sectional view of a drive copying cam transmitting portion, and FIG. 4 is a copying cam transmitting portion and a soldering iron support. 5 is a side view of the portion, FIG. 5 is a sectional view of the copying cam transmission portion, and FIG. 6 is a plan view of the copying cam transmission portion.

First, the rotating means will be described with reference to FIGS. 1 and 2. 1 is a base, 2 is a bearing portion fixed to the base 1, 3 is a main shaft, and It is provided so that it can rotate. Reference numeral 4 denotes a bracket provided on the upper part of the main shaft 3, and a mounting plate 5 on which the object A to be soldered is mounted is attached to the bracket 4.
Reference numeral 6 is a fixing plate for fixing the object to be soldered A.

Reference numeral 7 is a drive copying cam that is detachably supported on the main shaft 3, and 8 is a flexible rack that is wound around and fixed to the driving copying cam 7. Reference numeral 9 is an auxiliary copying cam fixed to the driving copying cam. 1
Reference numeral 0 denotes a bracket which is located at an approximately intermediate portion between the mounting plate 5 and the driving copying cam 7 and is fixed to the main shaft 3, and the bracket 10 has a shape similar to the driving copying cam 7 and the mounting plate 5. The copying cam 11 forming the above is supported so that it can be removed and the position can be finely adjusted.

Reference numeral 12 is a bracket for attaching a pressing member 13 for holding the central portion of the soldered object A placed on the mounting plate 5, and the pressing member 13 is a spring 14 for the soldered object. It is biased in the A direction. Therefore,
The object A to be soldered is attached by being pressed by the pressing member by the spring pressure of the spring 14. 15 is a pressing member 13
Is a pressing operation lever for pulling up to release the pressing of the object to be soldered A. Next, the rotary drive means will be described with reference to FIGS. 1 to 3. Reference numeral 16 is a support bracket, and 17 is a slide plate, which is slidably provided on the support bracket 16. 17a is a mounting bracket.

Reference numeral 18 denotes a constant tension spring, one end of which is stretched over a pin 16a provided on the support bracket 16 and the other end of which is provided on a support plate 19 provided on the slide plate 17, and the slide plate 17 It is provided so as to be urged in the direction of the main shaft 3. Reference numeral 20 denotes a motor mounting bracket provided on the slide plate 17, and a motor 22 is mounted on a mounting plate 21 fixed to the motor mounting bracket 20 and slidable and adjustable in the axial direction. The motor 22 is also provided with a sprocket 23.

A sprocket 26 pivotally supported by a mounting bracket 17a is provided on the side of the drive plate cam 7 of the slide plate 17, and a shaft 27 is fixed to the sprocket 26, and the sprocket 23 and the chain 25 are provided. It is provided to be driven to rotate by. Further, a roller 28 is provided on a shaft 27 of the sprocket 26 so as to be in contact with an auxiliary copying cam 9 fixed to the driving copying cam 7, and a rack and pinion 29 is provided on the driving copying cam 7. It is provided in mesh with 8. Further, the above-mentioned installation of the roller 28 and the auxiliary copying cam 9 serves to protect the flexible rack 8 provided on the rack and pinion 29 and the driving copying cam 7.

Therefore, when the motor 22 is driven, the sprocket 23 is moved through the chain 25 to the sprocket 2.
6 is rotated so that the rack and pinion 29 rotates the drive copying cam 7. Also roller 28
Is pressed against the auxiliary copying cam 9, so that it rotates following the driving copying cam 7. Further, since the rack pinion 29 provided on the slide plate 17 is pressed by the constant tension spring 18 in the driving copying cam 7, proper meshing can be realized, and the driving copying cam 7 can be smoothly rotated. can get.

Next, the soldering iron driving means will be described with reference to FIG.
~ Explaining in FIG. 6, 30 is a support bracket, and 3
A slide plate 1 is provided so as to slide on the support bracket 30. Further, the slide plate 31 has a pin 3 whose one end is provided on the support bracket 30.
0a and the other end is urged in the main shaft 3 direction by a spring 33 attached to a spring attachment plate 32 provided on a support member 47 supporting the slide plate 31.

Reference numeral 34 is a holder fixed to the slide plate 31, and 35 is a shaft 35 pivotally supported by the holder 34.
Is. A roller holder 37, which is provided with two rollers 38 rolling around the peripheral edge of the copying cam 11, is fixed to the shaft 35. Reference numeral 36 is a support plate fixed to the shaft 35, and a support plate 39 is pivotally supported by a shaft 36a. Therefore, the support plate 39 is biased in the main shaft 3 direction by the spring 40 about the shaft 36a. 36b is a locking pin of the support plate 39, and is provided so that the support plate 39 is locked by a nut 41. Reference numeral 39a is a locking pin that is provided so as to abut against the support plate 36 to prevent sideways falling.

Reference numeral 42 denotes a mounting support plate fixed to the support plate 39, and a soldering iron support plate 43 to which a soldering iron 44 is mounted is provided. The soldering iron support plate 43 is provided with a holding square tube 43 a holding the soldering iron 44 and a holding plate 46 holding the solder automatic supply tube 45. Reference numeral 44 denotes a soldering iron held by the holding square tube 43a, and the soldering iron 44 is provided so as to slide in the holding square tube 43a. 45 is solder 4
It is an automatic solder supply tube for automatically feeding 5a, and the solder is automatically fed to the iron tip 44a of the soldering iron 44 described above.

Therefore, since the slide plate 31 to which the soldering iron 44 is attached is provided by being biased in the main shaft 3 direction by the spring 33 as described above, the two rollers 38 are appropriately pressed to the copying cam 11. The copying cam 11 rolls under pressure and within the range of the amplitude angle L shown in FIG.
Since it rolls along the irregularly shaped peripheral surface of the soldering iron, the tip 44a of the soldering iron 44 always operates so as to face the axial center direction, and rolls along the irregular shape of the object to be soldered A. Therefore, the soldering tip 44a of the soldering iron 44 is adapted to be soldered in a state of being pressed against and constantly bonded to the solder surface of the object to be soldered A. As described above, the copying cam 1
Since 1 has a similar shape to the driving copying cam 7, the copying cam 11 also rotates at a constant speed.

With the above-mentioned structure, the placing plate 5 on which the article A to be soldered is placed by the constant tension spring 33 as described above.
Since the rack and pinion 29 that meshes with the flexible rack 8 that is wound around the outer periphery of the drive copying cam 7 that is coaxially provided is pressed with appropriate pressure, reliable meshing can be realized and soldering can be achieved. Since the roller 38 provided with the support plate 36 of the iron 44 rolls on the peripheral surface of the copying cam 11 which is provided coaxially with the driving copying cam 7 and has a similar shape, Even if the solder surface of the object to be soldered A has a deformed outer periphery, the speed is kept constant.

Further, as described above, the two rollers 38 roll on the support plate 36 of the soldering iron 44 of the copying cam 11 and the tip of the soldering iron 44 with respect to the solder surface of the object A to be soldered. Since the slide plate 31 in which the surfaces 44a are parallel to each other and the support plate 36 of the soldering iron 44 is swingable is urged in the direction of the main shaft 3 by the constant tension spring 33, the solder of the soldered object A is soldered. Appropriate pressing force is applied to the surface to obtain a desired solder state.

In the above embodiment, the soldering iron 4
4 is provided so as to slide in the holding square tube 43a,
In addition, the soldering iron 44 is set in a vertically free state, and the iron tip is in contact with the plates into which the solder flows due to the weight of the trowel to increase the heat transfer effect. Since the direct pressure exerted on the pinion rack is greatly increased, the method of attaching the soldering iron 44 is adjusted by another spring or the like so that the spring which is proportional to the weight of the iron is interposed in the arm portion and the tip 44a smoothly moves. It is also possible to appropriately change the pressure as long as the pressing force is appropriately applied to the solder joint surface.

The transmission means from the motor to the pinion rack is not limited to the chain and the sprocket, but may be transmission means such as gears and belts. Furthermore, with regard to the solder automatic supply tube that feeds in the solder, the amount of heat transfer at the iron tip changes, so it is sufficient if the solder wire feed amount of the commercially available solder automatic supply device can be automatically converted in cooperation with the welding linear velocity. Any means including the above may be used, and any means may be used as long as the iron tip is supplied to the tip portion.

[0026]

As described above, according to the present invention, the driving copying cam fixed to the main shaft and the rack are mounted by pressing the coaxial roller and the rack and pinion with the constant tension spring through the slide. The mounted speed control motor can rotate the mounting plate 5 of the object to be soldered A at a constant speed by the chain drive, apply an appropriate pressing force to the surface shape of the object to be soldered, and also to move the object to be soldered at a constant speed. It can act to imitate the solder side.

Therefore, the soldering speed on the welded surface can be kept uniform even on the outer periphery of the irregular shape, and even if the soldered surface has a corner portion and a curved portion of the object to be soldered, 2
Since the soldering iron can be set in a vertical position with respect to the line connecting the centers of the individual rollers, the soldering iron can be swung along the member for a can, that is, the tip of the planar shape has the corner R. Since it freely swivels toward the center, the solder surface and the tip surface are properly joined to obtain a desired solder state.

Further, since the deviation of the accuracy of copying of the soldering iron caused by the two rollers is joined to the subtle unevenness of the tip surface of the soldering iron by the spring, smoothness at the time of soldering is achieved. Moreover, a uniform solder state can be obtained. Furthermore, in this type of soldering process, the number of steps required for soldering can be reduced and the operator's fatigue during manual soldering work can be relieved.

[Brief description of drawings]

FIG. 1 is an overall front view of an automatic soldering device according to the present invention.

FIG. 2 is an overall side view of an automatic soldering device.

FIG. 3 is a cross-sectional view of a drive copying cam transmission unit.

FIG. 4 is a side view of a copying cam transmission portion and a soldering iron support portion.

FIG. 5 is a cross-sectional view of a copy cam transmission portion and a soldering iron support portion.

FIG. 6 is a plan view of a copying cam transmission portion and a soldering iron support portion.

[Explanation of symbols]

 A Soldered object 1 Base 2 Bearing part 3 Spindle 5 Mounting plate 7 Driving copying cam 8 Flexible rack 9 Auxiliary copying cam 11 Copying cam 16, 30 Support bracket 17, 31 Sliding plate 18, 33 Constant tension spring 19, 32 Spring mounting plate 20,34 Bracket 22 Motor 23,26 Sprocket 25 Chain 27,35 Shaft pin 28,38 Roller 29 Rack pinion 36 Support plate 37 Roller holder 39 Support plate 40 Spring 42 Mounting support plate 43 Soldering iron support plate 44 Hander Trowel 45 Automatic solder supply tube 46 Holding plate

Claims (3)

[Claims] 1. A rotating means for supporting an object to be soldered, a rotation driving means for rotating the rotating means so that the peripheral speed of the solder surface of the object to be soldered is constant, and a solder surface of the object to be soldered. An automatic soldering device comprising: a soldering iron driving means for moving the soldering iron in a copying manner. 2. The rotation driving means is composed of a power transmission means rotated by a motor, and a driving copying cam formed in a shape similar to the solder surface of the solder object provided on the rotation means, 2. The automatic soldering apparatus according to claim 1, wherein the power transmission means is brought into pressure contact with the driving copying cam so that the peripheral speed of the soldered object becomes constant. 3. The soldering iron drive means is a copying cam formed in a shape similar to the soldering surface of the soldered object provided on the rotating means, and is pressed against the copying cam by a biasing means. 2. An automatic soldering apparatus according to claim 1, further comprising a soldering iron supporting means for moving the soldering iron along the soldering surface.