KR102579554B1 - High-frequency heating welding device for connection terminals of electrical terminal blocks - Google Patents

Abstract

The present invention automatically supplies the connection terminal to the connection portion of the terminal block to perform welding work by automatically supplying it to the high-frequency heater, and automatically discharges the terminal block for which the welding work has been completed from the high-frequency heater. By doing so, we provide a high-frequency heating welding device for the connection terminal of an electric terminal block that can improve work efficiency and productivity, as well as protect workers from harmful gases and high heat generated during high-frequency heat welding.
The high-frequency heating welding device of the present invention includes a terminal supply unit that transports the terminal blocks along a horizontal first axial direction (X-axis) path and positions them one by one at supply positions at the end portions of the path; Heating a welding stand disposed in a horizontal second axis direction (Y-axis) perpendicular to the first axis direction and on which a terminal block supplied through the terminal supply unit is placed, and a terminal block and a connection terminal placed on the welding stand. a high-frequency heater having a high-frequency heating coil for heating and a pressurizing mechanism for pressurizing the connection terminal of the terminal block placed on the welding stand; and a terminal replacement unit that holds the terminal block at the supply position of the terminal supply unit and places it on the welding stand of the high-frequency heater, and moves the welded terminal block on the welding stand to the discharge position.

Description

High-frequency heating welding device for connection terminals of electrical terminal blocks}

The present invention relates to a high-frequency heating welding device. More specifically, the present invention relates to a high-frequency heating welding device for attaching a connection terminal to an electrical connection part of a terminal block installed in a circuit breaker, switch, etc. of an electrical device by high-frequency heating to improve connection performance. It relates to heating welding equipment.

Generally, connection terminals made of metal materials with high electrical conductivity are attached to the electrical connection portion of terminal blocks installed in circuit breakers, switches, etc. to ensure good electrical connection.

When attaching the connection terminal to the terminal block, silver solder, which has a very high conductivity, was used. Adhesive was applied to the silver solder to bond it between the connection terminal and the terminal block, and the silver solder was melted with a high-frequency heater and then cooled to solidify again to secure it. A silver-lead high-frequency heating welding method was used.

Previously, the work of fixing the connection terminal to the terminal block during high-frequency heat welding was done manually by workers, making the work very inefficient and reducing productivity. In addition, toxic gases harmful to the human body were generated during high-frequency heating and burns caused by high heat. As the working environment was very poor due to the risk of work, there was great difficulty in securing manpower due to work avoidance.

Domestic Patent No. 10-1372391 is known as prior art related to high-frequency heating welding equipment for terminal block connection terminals, and the prior art is 'jig for high-frequency welding equipment' that has been improved to improve welding efficiency and strength and durability. is starting.

However, with the above prior art, it is difficult to improve the poor working environment caused by harmful gases and high heat generated when high-frequency heat welding of the connection terminal to the terminal block, or to expect a synergistic effect that can improve the efficiency and productivity of welding work. The situation was in dire need of improvement.

The present invention is intended to solve the above-described conventional problems, and its purpose is to automatically supply the connection terminal to the high-frequency heater while tack-welding it to the connection part of the terminal block to perform welding work. By repeatedly automatically discharging completed terminal blocks from a high-frequency heater, work efficiency and productivity can be improved, as well as connection of electric terminal blocks that can protect workers from harmful gases and high heat generated during high-frequency heat welding. The purpose is to provide a terminal high-frequency heating welding device.

In order to achieve the above object, the present invention transports the terminal blocks tack-welded with silver solder between the terminal blocks and the connection terminals along a horizontal first axial path (X-axis) so that they are positioned one by one at the supply position at the end of the path. terminal supply unit; A welding stand disposed in a horizontal second axis direction (Y-axis) orthogonal to the first axis direction, which is the terminal block transfer direction of the terminal supply unit, and on which the terminal block supplied through the terminal supply unit is placed, and on the welding stand a high-frequency heater having a high-frequency heating coil for heating the terminal block and the connection terminal placed on the welding stand, and a pressurizing mechanism for pressurizing the connection terminal of the terminal block placed on the welding stand; and a terminal replacement unit that holds the terminal block at the supply position of the terminal supply unit and places it on the welding stand of the high-frequency heater, and moves the welded terminal block on the welding stand to the discharge position. High-frequency heating of the connection terminal of the electric terminal block. Welding equipment has its own characteristics.

In addition, in the present invention, the terminal supply unit includes a conveyor mechanism for transferring the terminal block, and a first stopper mechanism that is disposed on the transfer path of the conveyor mechanism and stops the transferred terminal block in a standby position. and a second stopper mechanism disposed on the conveying path of the conveyor mechanism to stop the subsequently transported terminal block when the terminal block in the standby position is transferred to the supply position by the first stopper mechanism, and It is characterized by a high-frequency heating welding device for connection terminals of an electric terminal block, which consists of a lifting mechanism that stops the terminal block installed and transported from the standby position at the supply position and simultaneously raises the terminal block to a predetermined height.

In addition, in the present invention, the first and second stopper mechanisms move forward and backward between a locking position that is maintained on one lower side of the terminal block to stop the terminal block and a passing position that is released from the lower side of the terminal block and transports the terminal block. It is characterized by a high-frequency heating welding device for the connection terminal of an electric terminal block, which consists of a stopper pin that reciprocates the stopper pin and a driving cylinder that moves the stopper pin in a straight line.

In addition, in the present invention, the elevating mechanism includes a pair of elevating plates located below both ends of the terminal block at the supply position, and each protruding from the end edges of the pair of elevating plates to stop the terminal block at the upper part of the elevating plate. It is characterized by a high-frequency heating welding device for connection terminals of an electric terminal block, which consists of a stop step and a driving cylinder that raises the pair of lifting plates to a predetermined height from the supply position.

In addition, in the present invention, the terminal replacement unit includes: a first air chuck mechanism for holding the terminal block at the supply position of the terminal supply unit and placing it on the welding stand of the high-frequency heater; a second air chuck mechanism that grips the welded terminal block on the welding stand of the high-frequency heater and discharges it to a discharge position; a first chuck moving mechanism that linearly moves the first air chuck mechanism in the horizontal first axis direction (X-axis); The first and second air chuck mechanisms and the first chuck movement mechanism are aligned in a horizontal second axis direction (Y axis) and a vertical third axis direction (Z axis) perpendicular to the first axis direction (X axis). a second chuck moving mechanism that moves in a straight line; and a rotary mechanism installed on the second chuck moving mechanism to rotate the first and second air chuck mechanisms and the first chuck moving mechanism by a predetermined angle about a vertical axis, wherein the supply position of the terminal supply unit and the high frequency The discharge position of the welding stand and terminal block of the heater is when the first and second air chuck mechanisms are rotated about the vertical axis by a rotating mechanism, and the first air chuck mechanism is positioned toward the supply position, the second air chuck mechanism is positioned toward the supply position. The chuck mechanism is positioned toward the welding position of the high-frequency heater, and when the first air chuck mechanism is positioned toward the welding position of the high-frequency heater, the second air chuck mechanism is positioned toward the discharge position. There is a feature in the heating welding device.

In addition, in the present invention, it further includes a cooling unit provided at the discharge position of the terminal block, wherein the cooling unit includes a conveyor mechanism for transporting the terminal block located at the discharge position along a predetermined path, and a conveyor mechanism on the transport path of the conveyor mechanism. An electric terminal block consisting of a plurality of cooling nozzles installed on the terminal block to cool it by spraying coolant, and a plurality of drying nozzles installed on the conveyor mechanism's transport path to spray air to dry the terminal block cooled by the cooling nozzle. The connection terminal features a high-frequency heating welding device.

According to the high-frequency heating welding device for the connection terminal of an electric terminal block according to the present invention having the above characteristic configuration, the terminal blocks with the connection terminals tack-welded are transferred to the supply position one by one by the terminal supply unit, and the terminal blocks at the supply position are replaced by the terminal replacement unit. As the series of operations of moving the terminal block to the welding position of the high-frequency heater and discharging the welded terminal block from the welding position to the discharge position and cooling and drying it by the cooling unit are carried out automatically and continuously, work efficiency and productivity are greatly improved. In addition, it can protect workers from harmful gases and high heat generated during high-frequency heating welding, which has the effect of greatly improving the working environment.

In addition, according to the high-frequency heating welding device for the connection terminal of an electrical terminal block according to the present invention, the structure of supplying, discharging, and cooling the terminal blocks one by one to the high-frequency heater is very simple, which makes maintenance convenient and has the effect of significantly reducing manufacturing costs.

In addition, according to the present invention, when the first air chuck mechanism of the terminal replacement unit is in the supply position to supply the terminal block, the second air chuck mechanism is positioned toward the welding position to discharge the welded terminal block from the welding stand, and 1 When the air chuck mechanism is in the position to place the terminal block on the welding stand, the second air chuck mechanism is positioned toward the position to place the welded terminal block in the discharge position, so the supply and discharge of the terminal block is done very quickly, increasing productivity. It has a further improving effect.

Figure 1 is a perspective view showing a terminal block to be welded by a high-frequency heating welding device according to the present invention.
Figure 2 is a plan view showing a high-frequency heating welding device according to the present invention, with the first air chuck mechanism in the supply position of the terminal supply unit.
Figure 3 is a perspective view showing a terminal supply unit, terminal replacement unit, and cooling unit in the high-frequency heating welding device according to the present invention.
Figures 4a and 4b are plan views showing the configuration and operation of the terminal supply unit in the high-frequency heating welding device according to the present invention.
Figures 5A to 5C are side views showing the operation of gripping the terminal block at the supply position with the first air chuck mechanism in the high-frequency heating welding device according to the present invention.
Figure 6 is a plan view of the first air chuck mechanism on the welding stand of the high-frequency heater in the high-frequency heating welding device according to the present invention.
Figures 7a and 7b are side views showing the operation of placing a terminal block on the welding stand of a high-frequency heater in the high-frequency heating welding device according to the present invention.
Figure 8 is a plan view of the second air chuck mechanism on the welding stand of the high-frequency heater in the high-frequency heating welding device according to the present invention.
Figure 9 is a front view of the terminal block in a state in which the terminal block is held by the second air chuck mechanism in Figure 8b.
Figure 10 is a plan view showing the operation of discharging the terminal block from the welding stand of the high-frequency heater in the high-frequency heating welding device according to the present invention.
Figure 11 is a cross-sectional view showing the configuration of a cooling unit in the high-frequency heating welding device according to the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail based on the accompanying drawings.

Figure 1 is a perspective view showing a terminal block to be welded by the high-frequency heating welding device according to the present invention. The terminal block (W) is installed for electrical connection in circuit breakers, switches, etc., and as shown, it is made of a metal with high conductivity for good electrical connection. A connection terminal (W1) made of material is provided at the electrical connection portion of the terminal block (W).

In this embodiment, the connection terminal (W1) is attached to the upper surface of the terminal block (W). Silver solder (W2), which has a very high conductivity, is applied as an adhesive and then attached between the connection terminal (W1) and the terminal block (W). It can be firmly fixed by tack welding, heating the terminal block W in a high-frequency heater, which will be described later, to melt the silver solder (W2), and then cooling it to solidify it again.

The high-frequency heating welding device of the present invention is configured to automate the operations of supplying, welding, discharging, and cooling the terminal block (W) as described above, and as shown in FIGS. 2 and 3, the terminal supply unit (10), a terminal replacement unit (20), a high-frequency heater (30), and a cooling unit (40).

The terminal supply unit 10 transports the terminal block W to which the connection terminal W1 is tack-welded along a predetermined path, for example, the horizontal first axis direction (X-axis) to a supply position set at the end of the path. In order to supply one by one, as shown in FIGS. 4A and 4B, a conveyor mechanism 11 arranged in the first axial direction (X-axis), first and second stopper mechanisms 12 and 13, and an elevator It consists of nine (14).

The conveyor mechanism 11 is for transporting the terminal block W to which the connection terminal W1 is tack-welded in the first axis direction, and includes a pair of belt pulleys 11a arranged at a predetermined distance apart in the first axis direction, and a pair of belt pulleys 11a. A conveyor belt (11b) installed by connecting the belt pulleys (11a) and allowing the terminal block (W) placed on top to be transported in the first axis direction, and a drive motor that rotates one of the pair of belt pulleys (11a) It consists of (11c).

Therefore, when the terminal blocks (W) to which the connection terminals (W1) are tack-welded are sequentially placed on the conveyor belt (11b) and the drive motor (11c) is driven, the terminal blocks (W) are guided by the conveyor belt (11b) along the first axis. It can be transported in any direction (X axis).

The first and second stopper mechanisms (12, 13) are arranged side by side in the transfer direction of the terminal block (W) at a standby position set on the transfer path of the conveyor mechanism (11), and the first stopper mechanism (12) is located on the conveyor. It performs the function of temporarily stopping the terminal blocks (W) transported by the mechanism 11 at the standby position and then transferring them one by one to the supply position, and the second stopper mechanism 13 is used to stop the terminal blocks (W) by the first stopper mechanism 12. When W) is transferred to the supply position, it performs the function of stopping the terminal block (W) transferred from the rear.

That is, the first and second stopper mechanisms 12 and 13 are held on one side of the lower part of the terminal block W, as shown in FIGS. 4A, 4B and 5A, and have a locking position for stopping the terminal block W and the terminal block ( Stopper pins (12a, 13a) that are released from the lower side of the W and move forward and backward linearly between passing positions for transporting the terminal block (W), and a stopper pin (12a, 13a) for linearly reciprocating the stopper pins (12a, 13a) It consists of pneumatic driving cylinders (12b, 13b), and the second stopper mechanism (13) has a gap at least longer than the length of one terminal block (W) in the direction opposite to the transfer of the terminal block (W) with respect to the first stopper mechanism (12). It is installed as

Therefore, as shown in FIG. 4A, when the stopper pin 13a of the second stopper mechanism 13 is retracted and the stopper pin 12a of the first stopper mechanism 12 is advanced, the terminal block W is placed in the standby position. It can be stopped, and as shown in Figure 4b, if the stopper pin (13a) of the second stopper mechanism (13) is advanced and the stopper pin (12a) of the first stopper mechanism (12) is retracted, the first terminal block (W) in the standby position ) can be moved to the lifting mechanism (14) at the supply position while the terminal block (W) being subsequently transported can be stopped by the second stopper mechanism (13).

The lifting mechanism 14 is installed at the supply position of the terminal supply unit 10 to stop the terminal block W being transported from the standby position at the supply position and at the same time raise the terminal block W from the conveyor mechanism 11 to a predetermined height. To perform the specified function, it is provided with a pair of lifting plates (14a) located below both ends of the terminal block (W) at the supply position.

As shown in FIGS. 4b and 5a, the pair of lifting plates 14a have stop steps 14b protruding from each end edge, so that the tip of the terminal block W moved to the supply position is caught and stopped on the lifting plate 14a. The lifting plate 14a can be raised and lowered from the conveyor belt 11b of the conveyor mechanism 11 to a predetermined height at the supply position by a pneumatically operated driving cylinder 14c.

As shown in FIGS. 7A and 7B, the high-frequency heater 30 includes a welding stand 31 on which the terminal block W supplied through the terminal replacement unit 20 is placed, and a terminal block placed on the welding stand 31. It is provided with a high-frequency heating coil (32) for applying heat to (W) and a pressurizing mechanism (33) for pressurizing the connection terminal (W1) of the terminal block (W) placed on the welding stand (31).

The welding stand 31 is made of an insulating material to prevent heat loss, and the high-frequency heating coil 32 is connected to the high-frequency generator 34 and installed to surround the terminal block (W), as is well known, and is used to melt the silver solder. The terminal block (W) is heated with high temperature.

The pressing mechanism 33 may be composed of a pressing member 33a for pressing the upper surface of the connection terminal W1, and a pneumatic driving cylinder 33b that moves the pressing member 33a up and down.

Therefore, when the terminal block (W) is placed on the welding stand (31), the driving cylinder (33b) of the pressurizing mechanism (33) is operated to pressurize the connection terminal (W1) of the terminal block (W) with the pressing member (33a) and high-frequency heating is performed. The high heat generated by the coil 32 and the high-frequency generator 34 can melt the silver solder (W2) between the terminal block (W) and the connection terminal (W1), and then cool it to solidify the silver solder (W2) again, thereby performing high-frequency heating. Welding can be done.

As shown in FIGS. 2 and 3, the terminal replacement unit 20 holds the terminal block W at the supply position of the terminal supply unit 10 and places it on the welding stand 31 of the high-frequency heater 30. , the terminal block (W) that has been welded on the welding stand (31) performs the function of moving to the discharge position of the cooling unit (40).

To this end, the terminal replacement unit 20 includes a first air chuck mechanism for holding the terminal block W at the supply position of the terminal supply unit 10 and placing it on the welding stand 31 of the high-frequency heater 30. 21) and a second air chuck mechanism 22 that moves the welded terminal block W on the welding stand 31 of the high-frequency heater 30 to the discharge position of the cooling unit 40.

The first and second air chuck mechanisms (21, 22) move in the first to third axial directions (X, Y, Z axes) and rotate by the first and second chuck moving mechanisms (23, 24). The mechanism 25 rotates at a predetermined angle to repeatedly perform the supply and discharge functions of the terminal block W.

The first and second air chuck mechanisms 22 have a well-known configuration including a pair of finger-type chucks operated by pneumatic pressure, and the chucks of the first air chuck mechanism 21 are arranged up and down to one side of the terminal block (W). is gripped from above and below (see FIG. 5C), and the chucks of the second air chuck mechanism 22 are disposed left and right to grip both edges of the terminal block W (see FIG. 9).

The first chuck moving mechanism 23 moves the first air chuck mechanism 21 in the horizontal first axial direction (X-axis) close to or away from the supply position of the terminal supply unit 10, as shown in FIGS. 5A to 5C. It is intended to move, and can be composed of a linear motor equipped with a slider (23a) and a base (23b).

As is well known, the linear motor is configured to use electricity to allow the slider 23a to move in a straight line along the base 23b. It is also called a linear motor and is known to have excellent control capabilities to find the correct position in a short time and move and stop accurately. there is.

Therefore, the base 23b of the linear motor is arranged in the first axial direction (X-axis), and the first air chuck mechanism 21 is fixed to the slider 23a, thereby attaching the first air chuck mechanism 21 to the first axis. It can be moved in the axial direction (X axis).

As shown in FIGS. 2 and 3, the second chuck moving mechanism 24 moves the first and second air chuck mechanisms 21 and 22 and the first chuck moving mechanism 23 in the first axial direction (X-axis). It is used to move the first chuck in the horizontal second axis direction (Y-axis) perpendicular to the Like the moving mechanism 23, it can be configured with a linear motor.

That is, the horizontal base 24a and the vertical base 24b are arranged in the horizontal second axis direction (Y-axis) and the vertical third axis direction (Z-axis) using two linear motors, and the horizontal base 24a ), the vertical slider (24d) is fixed to the horizontal slider (24c) moving in the second axis direction (Y-axis), and the first and second air chuck mechanisms (21, 22) are installed at the bottom of the vertical base (24b). By installing the first chuck movement mechanism 23, the first and second air chuck mechanisms 21 and 22 and the second chuck movement mechanism 23 are moved in the second and third axis directions (Y-axis and Z-axis). It can be moved.

Therefore, when the welding stand 31 of the high-frequency heater 30 is positioned in the second axial direction (Y-axis), the first and second air chuck mechanisms 22 and the first chuck movement mechanism 23 are placed on the welding stand ( 31), the terminal block (W) can be placed on or discharged from the welding stand (31) of the high-frequency heater (30).

In addition, as shown in FIGS. 2, 3, 4A and 5A, the first and second air chuck mechanisms 21 and 22 and the first chuck movement mechanism 23 are rotated around the vertical axis by the rotation mechanism 25. It is installed so that it can rotate at a predetermined angle.

The rotation mechanism 25 is installed on the vertical base 24b of the second chuck movement mechanism 24, and includes a drive motor 25a installed on the top of the vertical base 24b, and a center of the vertical base 24b from top to bottom. A motor shaft (25b) installed to penetrate the vertical base (24b) is fixed to the motor shaft (25b) at the bottom, and the first and second air chuck mechanisms (22) and the first chuck movement mechanism (23) are fixed. It can be configured with an installed chuck fixing plate (25c).

At this time, the first and second air chuck mechanisms 22 are installed in a direction perpendicular to the horizontal on the chuck fixing plate 35c, and the first air chuck mechanism 21 is the first as shown in FIGS. 5A to 5C. It is installed by fixing the base 23b of the chuck moving mechanism 23 to the chuck fixing plate 25c.

The supply position of the terminal supply unit 10, the welding stand 31 of the high-frequency heater 30, and the discharge position of the cooling unit 40 are determined by determining that the first and second air chuck mechanisms 21 and 22 are rotary mechanisms ( 25), when the first air chuck mechanism 21 is rotated around the vertical axis and faces the first axial direction (X-axis), which is the supply position direction of the terminal supply unit 10, the second air chuck mechanism ( 22) is located in the first axial direction (Y-axis) toward the welding stand 31 (see FIG. 2), and the first air chuck mechanism 21 is located in the second axial direction (Y-axis) toward the welding stand 31. When facing, the second air chuck mechanism 22 is preferably set to be positioned (see FIG. 10) in the first axis direction (X-axis) facing the discharge position of the cooling unit 40.

The cooling unit 40 is provided at the discharge position of the terminal block (W) as shown in FIGS. 2, 3, and 11. The cooling unit 40 includes a conveyor mechanism 41 that discharges the terminal block W placed in the discharge position through a predetermined path, and is installed on the transfer path of the conveyor mechanism 41 to spray coolant to the terminal block W. It consists of a plurality of cooling nozzles (42) for spraying cooling air on the terminal block (W) and a plurality of drying nozzles (43) installed on the conveying path of the conveyor mechanism. The conveyor mechanism 41 consists of a pair of belt pulleys 41a, a conveyor belt 41b, and a drive motor 41c.

Therefore, if a cooling water supply source (not shown) is connected to the cooling nozzle 42 and an air supply source (not shown) is connected to the drying nozzle 43, the terminal block W is discharged through a predetermined path of the conveyor mechanism 41 and the cooling water is discharged. It can perform cooling and air drying functions.

The operation of the present invention with this configuration will be described as follows. As shown in FIGS. 2, 3, 4A and 4B, the terminal blocks (W) to which the connection terminals (W1) are tack-welded are sequentially placed at a predetermined distance apart on the conveyor belt (11b) of the terminal supply unit (10), When the drive motor 11c is driven, the conveyor belt 11b is circularly driven by the pair of belt pulleys 11a, so the terminal block W is transferred to the standby position at the end of the conveyor mechanism 11.

At this time, as shown in FIG. 4a, when the stopper pin (13a) of the second stopper mechanism (13) is moved backward and the stopper pin (12a) of the first stopper mechanism (12) is advanced in the standby position, the terminal block (W) that is transported to the front is is stopped at the standby position by the first stopper mechanism (12). At this time, the driving motor 11c is stopped to stop all terminal blocks W transferred behind it, thereby preventing unnecessary power consumption.

In this way, while the terminal block (W) is stopped in the standby position, the stopper pin (13a) of the second stopper mechanism (13) is advanced, and the stopper pin (12a) of the first stopper mechanism (12) is moved forward, as shown in FIG. 4B. When moving backward and simultaneously driving the drive motor (11c), the terminal block (W) stopped in the standby position is released from the stopper pin (12a) of the first stopper mechanism (12) and moves to the lifting plate (14a) in the supply position. The terminal block (W) that is transferred to the top and located next is stopped by being caught by the stopper pin (13a) of the second stopper mechanism (13), so only one terminal block (W) can be supplied to the supply position.

Next, when the supply position becomes empty again by the first air chuck mechanism 21 of the terminal replacement unit 20 gripping and moving the terminal block (W) supplied to the supply position, the terminal block (W) is moved again as shown in FIG. 4A. The stopper pin (13a) of the second stopper mechanism (13) is retracted, and the stopper pin (12a) of the first stopper mechanism (12) is advanced, so that the next terminal block (W) is held by the first stopper mechanism (12). It can be stopped in place. By controlling the operations of the first and second stopper mechanisms 12 and 13 as described above to repeat, the terminal blocks W can be continuously supplied one by one to the upper part of the lifting plate 14a at the supply position.

In this way, when the terminal block (W) is transferred to the upper part of the lifting plate (14a) of the lifting mechanism (14) at the supply position, the tip of the terminal block (W) is placed on the stop step (14b) of the lifting plate (14a) as shown in FIG. 5A. It is held and stopped on the lifting plate 14a, and then, as shown in FIG. 5B, the driving cylinder 14c of the lifting mechanism 14 operates to raise the lifting plate 14a, so that the terminal block W is connected to the conveyor belt. It rises to a certain height from (11b).

At this time, when the first air chuck mechanism 21 of the terminal replacement unit 20 is positioned in the horizontal first axis direction (X-axis), which is the supply position direction of the terminal supply unit 10, the second air chuck mechanism 22 ) is located in the second axis direction (Y-axis), which is the welding position of the high-frequency heater 30 (see FIGS. 2 and 4A).

Therefore, as shown in FIGS. 5B and 5C, the first chuck movement mechanism 23 moves the first air chuck mechanism 21 of the terminal replacement unit 20 in the horizontal first axis (X-axis) direction, and 2 By moving the chuck moving mechanism 24 in the vertical third axis direction (Z-axis), the terminal block W can be grasped at the supply position and lifted from the lifting plate 14a, and then the rotation mechanism 25 is driven. When the motor 25a is driven to rotate the chuck fixing plate 25c fixed to the motor shaft 25b 90 degrees clockwise, the terminal block W held by the first air chuck mechanism 21 as shown in FIG. 6 is located in the horizontal second axial direction (Y-axis), and the second air chuck mechanism 22 is located in the first axial direction (X-axis), and the first and second air of the terminal replacement unit 20 The chuck mechanisms 21 and 22 and the first chuck movement mechanism 23 are moved in the horizontal second axis direction (Y axis) and the vertical third axis direction (Z axis) by the second chuck movement mechanism 24. As a result, the terminal block (W) can be positioned in front of the welding stand (31) of the high-frequency heater (30).

Next, as shown in FIGS. 7A and 7B, the first air chuck mechanism 21 is moved in the second axial direction (Y) using the first chuck movement mechanism 23 and the second chuck movement mechanism 24 of the terminal replacement unit 20. axis) and the third axis direction (Z-axis), place the terminal block (W) on the welding stand (31) of the high-frequency heater (30), and pressurize it by driving the pressurizing mechanism (33) of the high-frequency heater (30). By lowering the member (33a), the connection terminal (W1) of the terminal block (W) is pressed, and at the same time, the high frequency generator (34) is driven to heat the terminal block (W) by the high heat of the high frequency heating coil (32) surrounding the terminal block (W). ) and the connection terminal (W1) are heated to melt the silver solder (W2) and perform high-frequency heat welding.

High-frequency heat welding is performed for several seconds, and while welding is in progress, the second chuck moving mechanism 24 and the rotating mechanism 25 of the terminal replacement unit 20 are driven as shown in FIG. 6 to remove the first air chuck mechanism 21. ) is placed at the supply position of the terminal supply unit 10, and the terminal block (W) to be welded next at the supply position of the terminal supply unit 10 is held in advance by the first air chuck mechanism 21 as described above. , the second air chuck mechanism 22 is moved to the welding position of the high-frequency heater 30, as shown in FIG. 8A.

Thereafter, when the high-frequency heat welding of the terminal block (W) in progress is completed, the pressing member (33a) of the pressing mechanism (33) is raised, and the second air is applied to the second chuck moving mechanism (24) as shown in FIG. 8B. The chuck mechanism 22 is moved in the horizontal second axis direction (Y-axis) to grip the terminal block W, and then removed from the welding stand 31 of the high-frequency heater 30.

Next, as shown in FIG. 10, when the rotation mechanism 25 of the terminal replacement unit 20 is driven to rotate the first and second air chuck mechanisms 21 and 22 clockwise by 90 degrees, the second air chuck mechanism (22) is located in the horizontal first axis direction (X-axis), and the first air chuck mechanism 21 is located in the horizontal second axis direction (Y-axis), so as described above, the first chuck moving mechanism Welding work can be performed by operating and holding (23) and then placing the terminal block (W) on the welding stand (31) of the high-frequency heater (30).

Next, the first and second air chuck mechanisms (21, 22) are moved in the horizontal second axis direction (Y-axis) using the second chuck moving mechanism (24) to move the welded terminal block (W) to the discharge position. It can be placed on the conveyor belt (41b) of the conveyor mechanism (41) constituting the cooling unit (40).

Subsequently, as described above, while high-frequency heat welding is performed on the next terminal block (W) in the high-frequency heater 30, the second chuck moving mechanism 24 and the rotating mechanism 25 are operated to form the first chuck as shown in FIG. 6. Move the air chuck mechanism (21) to the supply position of the terminal supply unit (10) to grip the terminal block (W) to be welded next, then move the first air chuck mechanism (21) to the welding position of the high-frequency heater and wait. By doing so, the operation of discharging the welded terminal block (W) to the discharge position of the cooling unit (40) and supplying the next terminal block (W) to the welding stand (31) of the high-frequency heater (30) can be automatically repeated. there is.

As shown in Figure 11, the terminal block (W) placed on the conveyor belt (41b) of the cooling unit (40), which is the discharge position, moves along a predetermined path by the conveyor mechanism (41) of the cooling unit (40), and during movement, It is cooled by cooling water sprayed from a plurality of cooling nozzles 42 arranged on the movement path, and then finally dried by air sprayed from the drying nozzle 43.

The high-frequency heating welding device for the connection terminal of the electric terminal block according to the present invention, which operates in this way, is used to move the terminal block (W) to which the connection terminal (W1) is tack-welded from the supply position of the terminal supply unit (10) to the welding position of the high-frequency heater (30). supply to the high-frequency heater (30) and discharging the welded terminal block (W) from the welding position of the high-frequency heater (30) to the discharge position of the cooling unit (40) to cool and dry the series of operations that are automatically repeated, thereby increasing work efficiency. This improvement can significantly increase productivity, and since workers do not need to be close to the high-frequency heater 30, a safe working environment can be created from harmful gases and high heat generated during welding.

In addition, the present invention provides that the terminal replacement unit 20, which moves the terminal block from the supply position to the welding position to the discharge position, moves the first and second air chuck mechanisms 21 and 22 in horizontal orthogonal directions (X, Y axes). is arranged, and the first and second chuck movement mechanisms 23 and 24 and the rotation mechanism 50 simultaneously move the first to third axes (X, Y, Z axes) and rotate around the vertical axis. As configured to perform, when the first air chuck mechanism 21 receives the terminal block W at the supply position, the second air chuck mechanism 22 quickly moves the welded terminal block W toward the welding position. It is in a position where it can be discharged, and when the first air chuck mechanism (21) supplies the terminal block (W) at the welding position, the second air chuck mechanism (22) can quickly discharge the terminal block (W) toward the discharge position. Since the terminal block (W) can be replaced and discharged very quickly, productivity can be further improved, and the terminal replacement unit (20), which performs various complex functions, has a very simple configuration. Costs can be reduced and maintenance can be made convenient.

As described above, the optimal embodiment is disclosed in the drawings and specifications. Although specific terms are used here, they are used only for the purpose of describing the present invention and are not used to limit the meaning or scope of the present invention described in the claims. Therefore, those skilled in the art will understand that various modifications and other equivalent embodiments are possible therefrom. Therefore, the true scope of technical protection of the present invention should be determined by the technical spirit of the attached patent claims.

10: terminal supply unit 11: conveyor mechanism
12,13: stopper mechanism 14: lifting mechanism
20: terminal replacement unit 21, 22: first and second air chuck mechanism
23, 24: first and second chuck movement mechanisms 25: rotation mechanism
30: high frequency heater 31: welding stand
32: high frequency heating coil 33: pressurizing device
40: Cooling unit 41: Conveyor mechanism
42: cooling nozzle 43: drying nozzle
W: terminal block W1: connection terminal
W2: silver payment

Claims (6)

a terminal supply unit that transports the tack-welded terminal blocks with silver solder between the terminal blocks and the connection terminals along a horizontal first axial direction (X-axis) path so that they are positioned one by one at the supply positions at the end portions of the path;
A welding stand disposed in a horizontal second axis direction (Y-axis) orthogonal to the first axis direction, which is the terminal block transfer direction of the terminal supply unit, and on which the terminal block supplied through the terminal supply unit is placed, and on the welding stand a high-frequency heater having a high-frequency heating coil for heating the terminal block and the connection terminal placed on the welding stand, and a pressurizing mechanism for pressurizing the connection terminal of the terminal block placed on the welding stand;
a terminal replacement unit that holds the terminal block at the supply position of the terminal supply unit and places it on the welding stand of the high-frequency heater, and moves the terminal block welded on the welding stand to the discharge position; and
It includes a cooling unit provided at the discharge position of the terminal block,
The cooling unit is,
a conveyor mechanism that transports the terminal block located at the discharge position along a predetermined path;
A plurality of cooling nozzles installed on the conveying path of the conveyor mechanism to spray coolant to cool the terminal block,
A high-frequency heating welding device for the connection terminal of an electric terminal block, characterized in that it consists of a plurality of drying nozzles installed on the conveying path of the conveyor mechanism and spraying air to dry the terminal block cooled by the cooling nozzle. The method of claim 1, wherein the terminal supply unit,
A conveyor mechanism for transporting the terminal block,
A first stopper mechanism disposed on the transfer path of the conveyor mechanism to stop the transferred terminal block in the standby position and transfer it to the supply position;
a second stopper mechanism disposed on the conveying path of the conveyor mechanism to stop the subsequently conveyed terminal block when the terminal block in the standby position is transported to the supply position by the first stopper mechanism;
A high-frequency heating welding device for the connection terminal of an electric terminal block, characterized in that it consists of a lifting mechanism that is installed at the supply position of the terminal supply unit and stops the terminal block transported from the standby position at the supply position and simultaneously raises the terminal block to a predetermined height. The method of claim 2, wherein the first and second stopper mechanisms are:
A stopper pin that moves forward and backward between a locking position that is maintained on one lower side of the terminal block to stop the terminal block and a passing position that is released from the lower side of the terminal block and transports the terminal block;
A high-frequency heating welding device for the connection terminal of an electric terminal block, characterized in that it consists of a driving cylinder for linearly reciprocating the stopper pin. The method of claim 2, wherein the lifting mechanism is:
A pair of lifting plates located below both ends of the terminal block at the supply position,
Stopping steps that protrude from each end edge of the pair of lifting plates to stop the terminal block at the upper part of the lifting plates;
A high-frequency heating welding device for connection terminals of an electrical terminal block, characterized in that it consists of a driving cylinder that raises the pair of lifting plates to a predetermined height from the supply position. The method of claim 1, wherein the terminal replacement unit,
a first air chuck mechanism for holding the terminal block at the supply position of the terminal supply unit and placing it on the welding stand of the high-frequency heater;
a second air chuck mechanism that grips the welded terminal block on the welding stand of the high-frequency heater and discharges it to a discharge position;
a first chuck moving mechanism that linearly moves the first air chuck mechanism in the horizontal first axis direction (X-axis);
The first and second air chuck mechanisms and the first chuck movement mechanism are aligned in a horizontal second axis direction (Y axis) and a vertical third axis direction (Z axis) perpendicular to the first axis direction (X axis). a second chuck moving mechanism that moves in a straight line; and
It includes a rotation mechanism installed on the second chuck movement mechanism to rotate the first and second air chuck mechanisms and the first chuck movement mechanism by a predetermined angle about a vertical axis,
The supply position of the terminal supply unit, the welding stand of the high-frequency heater, and the discharge position of the terminal block are determined by rotating the first and second air chuck mechanisms around a vertical axis by a rotating mechanism, so that the first air chuck mechanism is positioned at the supply position. When positioned toward, the second air chuck mechanism is positioned toward the welding position of the high-frequency heater, and when the first air chuck mechanism is positioned toward the welding position of the high-frequency heater, the second air chuck mechanism is positioned toward the discharge position. A high-frequency heating welding device for the connection terminal of an electric terminal block, characterized in that it is set to be positioned. delete