JPS5981813A - Press interlocking high speed welding machine - Google Patents

Abstract

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

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a press-linked high-speed welding machine, and more particularly to a press-linked high-speed welding machine integrated with a press in which a series of welding operations are performed by the crankshaft of the press in synchronization with the press stroke.

Traditionally, in producing parts for ``a-air appliances'' such as contact blocks, processing lines and forming machine-type equipment have been used that automatically perform continuous work by combining press processing and welding processes. Ta.

However, this type of equipment requires, for example, a press machine for press processing, a welding device, a forming device, and a conveyance device between them, which not only requires floor space but also increases equipment costs. The disadvantage is that it is less profitable.

An object of the present invention is to eliminate the above-mentioned drawbacks, and to provide a compact, inexpensive, highly productive press-linked high-speed welding machine that is integrated with a press and performs a series of welding operations in response to press operations. It is in.

That is, the present invention provides an electrode operation link device that moves a welding electrode downward in synchronization with the rotation of the crankshaft of a crank press, and an electrode operating link device that is installed in the welding electrode at a position opposite to the electrode tip of the welding electrode. a weld metal holding part configured to hold a linear continuous weld metal between a provided chuck claw and to perform welding between the weld metal and the welded metal; a chuck claw operation link device that performs an operation of holding the weld metal 17''+ and an operation of dissociating the weld metal from the electrode tip to release the weld metal in synchronization with the rotation of the crankshaft; a cutting operation link device that performs an operation of welding weld metal and cutting the welded weld metal part from the linear continuous weld metal in synchronization with the rotation of the crankshaft; The welding metal held by the molten rare metal holding part is lowered together with the welding electrode by the electrode operation link device to be brought into pressure contact with the welded metal for welding, and the weld metal is released by the chuck claw operation linkage device. operation, an operation of pulling up the weld metal holding portion together with the welding electrode by the electrode operation link device, an operation of cutting the weld metal by the cutting operation link device, an operation of holding the weld metal by the Booyac claw operation link device. Further, the electrode operation link device is characterized in that an operation of pulling up the welded metal holding portion is performed at a predetermined timing.

The present invention will be described in detail below based on the drawings.

FIG. 1 shows an embodiment of the present invention, where 1 is a crank press, the crankshaft of this press 1 is extended, and a plurality of cams 6 are coaxially provided on the extended crankshaft 2. A support plate 5 is fixed to the frame 4 attached to the press body 1, and the swing lever 6 is supported by the support plate 5, so that the cam follower (not shown) provided on the swing lever 6 moves the cam B. The swing lever 6 is caused to swing by following this.

The swinging action of the swinging lever 6 causes the welding devices (hereinafter referred to as welding heads) 7A and 7B to perform a series of plateau welding actions, which will be described later. Two sets of welding heads 7A and 7B are attached to these. That is, 8A, 8B, and 8C are connecting rods that connect each swing lever 6 and each welding head 7A, 7B, and the interlocking operation of these connecting rods 8A, 8B, and 8C synchronizes with the interlocking movement of the press 1. Operate welding heads 7A and 7B.

, 9 is a silver wire 700 supplied to the welding heads 7A and 7B.
The silver wire 700 is supplied from this supply pan 9 to the welding positions of the welding heads 7A and 7B.

Furthermore, 10 is a clipper feed for feeding the coiled material 200 held in a wound state on the cradle 11, and 12 is a mold for forming the shape of the contact. Hydraulic clamp 1
Fixed by 3.

14 is a welding transformer, 15 is a welding controller, 1
6 is a welding monitor, and 17 is a control panel.

Next, welding heads 7A and 7B will be explained.

All of these have the same structure, so
In this example, one of them will be explained.

'4'52 Figures (A) and (11) show the welding head 7, 70 is a pace fixed to the bolster surface of the brace 1, and 71 is rotatable around the axis 72 with respect to this base 70. At the same time, in use, the fixed clamp 7
This is a fixed stand that is fixed by 3. Therefore, a cutter 74 is provided in the groove 71A provided on the upper surface of the fixed base 71.
A pair of silver wire cutting arms 76A and 76B holding a holder 75 at the end thereof are fitted together, and the cutting arm 76A is provided with a bin 77.

Reference numeral 78 denotes a lever having two arms, and the lever 78 is rotatably mounted around a shaft 79A of a bearing 79 attached to the upper fixed base 71B, and a groove 78A is provided at the lower arm end of the lever 78. The pin 77 is engaged with the pin 77, and the other arm is connected to the rod end 18B of the connecting rod 8B by the pin 28B.

80 is the cutting arm 7 fitted into the fixing groove 71A.
The lever 78 swings around the shaft 79A as the connection s8B moves up and down. This swinging motion causes the cutting arm 76A to move via the bin 77 and the cutting arm 76B to move via the cam bolt 80 to repeat the cutting operation of the silver wire 700, which will be described later, in synchronization with the pressing operation.

81 and 82 are swinging links that relay the vertical movement of the main body electrode 86, and the swinging link 81 has an extending arm 81k extending downward. It is connected to the pole 86 by a pin 85.

Furthermore, the swing link 82 is connected to the upper fixed base 71B and the bin 8.
6, it is connected to the main body electrode 83 through a pin 87.

However, the rod end 18A of the connecting rod 8A is connected via the pin 28A inserted into the notch 81B of the swing link 81 connected in this way, and the electrode 86 is moved up and down by the vertical movement of the connecting rod 8A. Make it move up and down parallel to 71B. A pressure spring 89 is installed between the lower end of the extending arm 81A of the swing link 81 and a spring holding hole 88 provided in the upper fixed unit 71B, and the spring force of this spring 89 is used to apply pressure during welding. create pressure. 90 is an XlAl adjustment screw for adjusting the pressing force of this spring.

Reference numeral 91 denotes a hook-shaped lever that is both pivotally supported by the pin 84 that pivotally supports the swing link 81, and is connected to the rod end 18C of the connecting rod 8C via the pin 28C, which is one arm, and is connected to the rod end 18C of the connecting rod 8C. The arm portion of the link member 92 is connected to the link member 92 via the pin 91C. Note that the connecting hole 92A of the link member 92 into which the bottle 91C is fitted is an oblong hole having a longer diameter in the longitudinal direction of the link member 92.

Furthermore, a chuck lever 93, also shaped like a hooked hand, is connected to the other end of the link member 92 via a pin 92B. A roller 93A is provided at the other end of the chuck lever 93, and this roller 93A maintains contact with a tapered surface 94A of a chuck arm 94 attached to the electrode 86 via a pin 83A, and is freely movable along this tapered surface 94A. It's like this.

95 is a coil spring interposed between the chuck lever 93 and the electrode 86, and 96 is a coil spring interposed between the chuck arm 94 and the electrode 86. Furthermore, the chuck arm 94
A chuck claw 98 provided at a position opposite to the electrode tip 97 is fixed to the lower end of the cap via a pin 98A.

Thus, when the connecting rod 8C is at the lowest position, the link member 92 is pulled to the far right in FIG.
By pressing the Bouyack arm 94 with its roller 93A, the chuck claw 98 at the end is biased toward the electrode tip 97, and the chuck claw 98 is biased toward the electrode tip 97, thereby causing the wire to be guided from above. Copper wire 700
(See Figure 6-(I)). In addition, Figure 6 (
A) to (I) show welding operations, which will be explained later.

Furthermore, when the connecting rod 8C is pulled upward, the lever 91
is rotated in the clockwise direction, the chuck lever 96 is rotated in the clockwise direction via the link member 92. Therefore, the roller 93A slides upward on the tapered member 94A. The booyack arm 94 is rotated clockwise around the bottle 83A by the spring force of the spring 96, and its chuck claw 98 is separated from the electrode tip 97, releasing the silver wire 700 from its restraint (see Figure 3). ) to (I)).

The copper wire 700 is connected to the chuck claw 98 and the electrode tip 9 in this way.
The chucked state and the released state are repeated by 7, but in order to prevent the silver wire 700 from slipping as the electrode 86 moves up and down, there is a silver wire lead-in part at the top of the electrode 86. A gap 101 into which the taper ring 100 is fitted, a ball receiver 102 formed to match the taper of the taper ring 100, a steel ball 106 interposed between the tapered ring 100 and the ball receiver 102, and a ball receiver 102 that is pushed up from below. A spring 104 is provided to hold the ball 106.

Furthermore, the cap 1 of such a non-slip device ^,
01 is screwed with an adjustment screw 105 with a hole, and the silver wire 700 is inserted into the hole of this adjustment screw 105 and the ball receiver 102.
It is guided between the lower chuck claw 98 and the electrode tip 97 through a hole provided in the . Therefore, by pushing up the ball 106 of the ball receiver 102 by the spring force of the spring 104,
The silver wire is held between balls 106. In addition, adjustment screw 1
05 downward, the silver wire 700 can be released from the holding force of the ball 106.

Reference numeral 110 designates an arm member for a silver wire detent device provided at the top of the welding head 7 in order to further ensure the delivery of the silver wire 700. The arm member 110 is supported by the upper fixing base 71B by a support shaft 111, and when in use, the arm member 110 is fixed at a predetermined position by tightening the thumb screw 112.

113 is a socket portion provided on the arm member 1101, and a steel wire guide portion 114 is further attached to the socket portion 116. Reference numeral 115 designates an operating shaft for the first return which allows the socket portion 116 to pass through 1 inch and is freely slidable, and 116 designates the second operating shaft.
As shown in Figure (B), this detent lever is rotatably attached to the socket portion 113 via a pin 117.

A spring 118 is fitted between the detent lever 116 and a stopper nut 117 provided at the end of the actuating shaft 115, and the spring force of the spring 118 causes the detent lever 1 to move.
16 is biased l#j G away from the end of the socket portion 116, thereby holding the silver wire 700.

Reference numeral 119 designates a flat key lever rotatably attached to the arm 110 via a pin 120, and a pin 11 provided at the end of the operating shaft 115 is inserted into a notch 119A provided in the lower arm of the lever.
5A, and further engage the other arm (two seats 119B).
38C fixed to the connecting rod 8C).

In this way, when the connecting rod 8C is pulled upward, the operating shaft 115 is interlocked to the right via the lever 119, so that the detent lever 116 holds the silver wire 700 between it and the end surface of the socket part 116. When the connecting rod 8C is pulled down, the silver wire 700 is loosened between the detent lever 116 and the end surface of the socket portion 116 by interlocking the operating shaft 115 to the left.

As for the explanation of other parts, 160 is a technology fixing bolt for facilitating the replacement of the electrode two-tube 97, 161 is a counter electrode provided below the main body of the electrode, 162 is a holder thereof, and 166 is a lower fixing base 71. 164 is an insulating plate interposed between the holder 162 and the holding plate 166.

Next, welding operations in the press-linked high-speed welding area configured as described above are shown in FIGS. 6(A) to 6(I) together with FIG.
The explanation will be made with reference to. In addition, Fig. 6 (A1-(
Il is a weld metal holding part 600 of one welding head 7, that is, an electrode tip 97 and a chuck claw 98, and a silver wire 700.
This figure shows the operation of the part that holds and welds the 200'' part in continuous disassembly from (1) to (1).

As a result of the series of welding operations, the result is shown in Fig. 6 (I).
After one silver wire contact portion 701 is welded as shown in FIG. 1, the material 200 is fed to the right by the clipper feed 10 shown in FIG.

First, in the state shown in Fig. 6<A), the connecting rod 8A is connected to the bottle 28.
A, the swing link 81 is pulled upward, so that the electrode tip 97 and the chuck claw 98 are kept in the upper position along with the electrode body 86, and the connecting rod 8C also moves the lever 91 clockwise. make a movement in between,
The chuck claw 98 is moved to the electrode tip 97 by the Bouyack arm 94 via the link part side 92 and the chuck lever 96.
The silver wire 70 is held by pressing it to the side.

Therefore, while holding the copper wire 700 in this way, the holding part 300 also descends as the connecting rod 8A descends.
The tip of the silver wire 700 is pressure welded onto the moon 200 between FIG. 6(B) and FIG. 3(C). FIG. 3(B) shows the pressurized state.

Next, immediately after such welding is performed, the chuck arm 94 is released from the chuck lever 93 by the upward movement of the connecting rod 8C, and the silver wire 700 is welded to the material 200 as shown in FIG. 3(D). It is left in its original state,
The electrode tip 97 and the chuck claw 98 are pulled up by the subsequent upward movement of the connecting rod 8A, resulting in the state shown in FIG. 6(E).

Then, when this state is reached, the lowering movement of the connecting rod 8B causes the lever 78. The cutting arm 76A is inserted through the bin 77,
Furthermore, the cutting arm 76B is interlocked via the cam bolt 80. Thus, the cutting operation is performed by the ivy 74 (see FIG. 3(F)), and the tip 97 and the chuck claw 98 are further removed by lowering the connecting rod 8C again just before cutting.
The silver wire 700 is held between the
G), see).

Next, from this state, the holding part 300 is returned to its original position as shown in FIGS. 6(6) and (I) by upward movement of the connecting rod 8A,
The series of welding operations is completed in FIG. 6(I). In this way, one step of welding the silver wire contact portion 701 onto the material 200 is completed, the material 200 is fed, and the next welding operation is repeated.

FIGS. 4(A) to 4(G) further show, as an example, a series of processes for manufacturing contact members using the press-linked high-speed welding machine of the present invention. The first contact portion 701A is welded onto the base material 200, and in the subsequent process, the welding head 7B is operated to form the welding point 701A shown in FIG.
), the second contact portion 701B is welded.

In this way, by means not shown, the notch 201 is formed on the material 200 in the process of strength checking in the process of FIG. 4(C), and the process of FIG. The contact portions 701A and 701B are formed into contacts 702A and 702B as shown in FIG. 4(F) using the molding die 12, and the cut surfaces are beveled to obtain a contact member molded product 800 as shown in FIG. 4(G). be able to.

Moreover, according to the present invention, the work in the above process can be performed by a single press-linked high-speed welding machine.

As explained above, according to the present invention, the crank press is provided with
A welding electrode is provided at the end of the welding electrode, and the welding electrode has a welding metal holder having an electrode tip and a chuck claw disposed at a position opposite to the welding electrode. A chuck jaw operation link device is designed to hold a shape of welded metal, and separates the chuck jaw from the electrode tip or presses it against the electrode tip. A cutting link device that holds and cuts the weld metal is synchronized with the crankshaft and driven at a predetermined timing, and the welding electrode is lowered while the weld metal is held by the holding part, and the welding is performed. When the process is completed, the weld metal 1 is separated from the molten metal by the cutting link device, and the separated weld metal is grasped by the action of the Booyac claw movement link device and repeatedly pulled up together with the welding electrode. This kind of automatic welding operation can be performed in conjunction with the processing operation of the crank press, and moreover, multiple welding devices can be incorporated into one crank press, so you can perform press processing without taking up much space. J. It can be used in specialized machines suitable for producing parts that require a process and a welding process.

Historically, the pace of the device with such a welding electrode was mounted rotatably on the bolster surface, so that it was possible to change the welding position applied to the part depending on the part, and therefore to perform different Switching can be easily done in response to the production of parts.

[Brief explanation of drawings]

Fig. 1 is an external view showing an example of a press-linked high-speed welding machine of the present invention, Fig. 2 (A) is a sectional view showing an example of the construction of the welding device, and Fig. 6(4) to (I) are explanatory diagrams continuously showing a series of operations of the welded metal holding part, and FIGS. 4(A) to (G
) is a perspective view showing an example of the process of manufacturing a contact member using the press-linked high-speed welding machine of the present invention. 1... Crank press, 1A... Bolster surface, 2... Crankshaft, 6... Cam, 4... Frame, 5. ...Support plate, 6 ...Lever, 7.7A, 7B ...Welding head, 8A, 8B,
8C... Connecting rod, 9... Supply tray, 10... Crib puff feed, 11 ・
...cradle, 12 ...mold, 16 ...hydraulic clamp, 14 ...transformer, 15 ...controller, 16 ...
... Monitor, 17 ... Control panel, 18A, 18B, 18C --- Rod end, 28A,
28B, 28C...Bin, 38C...Nut, 70...Pace, 71...Fixing stand, 71A...Groove, 71B... ...Upper fixing base, 72...-shaft, 76...Fixing clamp, 74...Cutter, 75...Holder, 76A, 76B...Cutting Arm for, 77...
···· bottle. 78...Lever, 78A...Groove, 79...Bearing, 79A...Shaft, 80...Cam bolt, 81.82... - Swing link, 81A... Extension arm, 81B... Notch, 86... Electrode, 83A... Bin, 84, 85, 86 , 87... bottle, 88 ・
...Spring holding hole, 89 ...Pressure spring, 90 ...B circumferential difference screw, 91 ... Lever, 91C ... Bin, 92...Link member. 92A... Connection hole, 92B... Bin, 96... Chuck lever, 95A...
...Roller, 94 ...Chuck arm, 94A...
... Tapered surface, 95 , 96 ... Coil spring, 97 ... Electrode tab, 98 ... Bouillac claw, 98A ...
・・ Bottle, 100 ・・ Taper ring, 101 ・
... Cap, 102 ... Ball receiver, 106 ... Steel ball, 104 ・
...Spring, 105 ...Adjustment screw, 110 ...Arm member, 111 ...
...Support shaft, 112 ...Thumb screw, 116 ...Socket part, 114 ...
...Guide part, 115 ...Operating shaft, 116 ...Lever, 117 ...Bin, 118 ...Spring, 119 ......・ Lever, 119B...Seat, 120...Bottle, 160...1 Oil fixing bolt, 161...
...Counter electrode, 152 ...Holder, 166 ...Holding plate, 164 ...
...Insulation plate, 200 ...Material, 201 ...Notch, 300 ...Welded metal holding part, 700
...Silver wire, 701.701A, 701B...Contact part, 70
2A, 702B...Contact, 800...
···Molding. Patent Applicant Fuji Electric Manufacturing Stock % Formula % Procedural Amendr (Method) March 1949 Director-General of the Japan Patent Office Kazuo Wakasugi 1, Indication of Case Patent Application No. 191792 No. 1983 2, Title of Invention Press Link High-speed welding machine 3, relationship with the case of the person making the amendment Patent applicant (J Co. 3) Fuji Electric Manufacturing Co., Ltd. 6, subject of the amendment Drawing 7, content of the amendment Figure 3 of the drawing will be corrected as shown in the attached sheet. .

Claims (1)

[Scope of Claims] 1) An electrode operation link device that moves the welding electrode up and down in synchronization with the rotation of the crankshaft of the crank press, and the welding electrode is provided with an electrode tip of the welding electrode at a position opposite to the electrode tip. a weld metal holding part that holds a linear continuous weld metal between the provided chuck claws and welds the welded metal between the weld metal and the welded metal; a chuck claw operation link device that performs an operation of holding the weld metal by pressing it and an operation of releasing the weld metal by dissociating it from the electrode tip in synchronization with rotation of the crankshaft; a cutting operation link device that performs an operation of welding metal and cutting the welded metal portion from the welded metal connected in a Ril line foreshadowing in synchronization with the rotation of the crankshaft; The weld metal held by the weld metal holder is lowered together with the welding electrode by the operation link device.
iI: an operation of press-welding to the welded metal, an operation of releasing the weld metal by the chuck claw/operation link device, an operation of pulling up the weld metal holding part together with the welding electrode by the electrode operation link device hg, An operation of cutting the weld metal by the cutting operation link device, an operation of holding the weld metal by the chuck claw operation link device, and an operation of pulling up the weld metal holding part by the electrode operation link device are performed at predetermined timing. A high-speed welding machine linked to a press. 2. The press-linked high-speed welding machine according to claim 1 is characterized in that the press-linked high-speed welding machine has a device for pitch-feeding the metal to be welded in synchronization with the rotation of the crankshaft (3+1). Machine. 3) The press-linked high-speed welding machine according to claim 1 or 2 is such that the welding position can be changed by a rotatable base provided on the bolster surface of the crank press. A press-linked high-speed welding machine characterized by: