JPS6327894Y2 - - Google Patents

Description

[Detailed Description of the Invention] This invention relates to an improvement of a brazing device for carbide chips.

Woodworking chipsaws come in a variety of blade configurations, depending on the purpose, such as a staggered blade with left and right edges cut out alternately, or a blade with a wide chip (called a flat blade) sandwiched between them. However, in conventional automatic brazing machines, the chip supply port is in a fixed position relative to the saw blade and does not move. For this reason, for staggered blades, we first braze only the tips that are biased to one side, for example, the right side, and then transfer them to the next machine and braze the tips that are biased to the other side, for example, the left side. The work was divided into two processes and was inefficient. In addition, for those with a flat blade in the middle, the work was transferred to a brazing machine specifically designed for flat blades, making the work extremely difficult over three steps.

This invention was an attempt to eliminate the above-mentioned drawbacks, and was improved so that brazing work could be done with a single device, including not only staggered blades but also flat blades in the middle. This will be explained in detail based on the drawings.

This device has a chip a as shown in Figures 1 and 2.
It consists of a chip supply section A that supplies chips and brazes them, a parts feeder B that stores chips a, a silver solder supply section C that supplies silver solder b, a high-frequency heating section D, and a support section E that supports a circular saw c. . First, the chip supply section A will be explained. As shown in FIGS. 1 and 2, a fixing table 2 is provided at the center of a base 1, and a dovetail groove 3 is provided in the Y direction on the upper surface thereof. A sliding table 4 that slides in the Y direction along the dovetail groove 3 is disposed, and a brazing table 5 that extends in the X direction perpendicular thereto is attached thereon. The brazing table 5 is made of heat-resistant ceramic, and has two chip supply grooves, a first supply groove 61 and a second supply groove 62, on its upper surface. The tips of both supply grooves 61 and 62 are formed so as to slightly protrude from the brazing table 5 toward the circular saw c, and the rear ends are connected to the tip supply path 7 of the bar fitter B that stores the chips a. Parts feeder B is a vibrating type feeder that has been widely used in the past. Two of these feeders are placed facing each other, and one accommodates a regular chip a and the other a wide chip (flat blade) d. The supply channel 7 is connected to the supply groove 61 of the brazing base 5 on the side near it.
Or connect to 62. A rod 9 of a cylinder 8 fixed to one side of the base 1 extends along the supply grooves 61 and 62, and a claw 10 provided at its tip moves in the Y direction to pick up chips a and 9 that have entered the supply grooves 61 and 62.
d (see Figure 5). As shown in FIGS. 2 and 3, a mounting base 11 for the silver solder supply unit C is provided on the back side of the fixed base 2 of the chip supply unit A, and a silver solder b is mounted on it.
A support 13 is established to which the roll 12 wound with is attached. An arm 14 extends from the middle of the column 13,
A pair of delivery rolls 15 for sending out the silver solder b is provided at the tip thereof, and the rolls 15 are driven by a motor 16 to send out the silver solder b. The portion below the roll 15 is guided by a guide tube 17 and faces the tips of chip supply grooves 61 and 62 of the brazing table 5. As shown in FIGS. 2 and 3, the mounting base 11 is arranged so as to be slidable in the Y direction along a pair of rails 18, and is moved back and forth in the Y direction by sending air into a cylinder 19 installed therein. .

As shown in FIG. 4, the high-frequency heating section D includes a heating coil 20 and a cylinder 21 that supports the heating coil 20 and moves it up and down. The cylinder 21 is attached to one side of the base 1, and the tip of the heating coil 20 moves up and down as the rod 22 expands and contracts. The heating coil 20 is
It is heated by being connected to an arbitrary high frequency heat source (not shown). Note that if the tip of the heating coil 20 is placed in a position that does not interfere with the back-and-forth movement of the sliding table 4, which will be described later,
The cylinder 21 that moves the heating coil 20 up and down may be omitted. On the base 1, there is a chip supply section A.
A support part E for the circular saw c is provided correspondingly. This part has the same structure as the conventional brazing device,
It is attached via the sliding base 24 of the mounting base 23 of the base 1. The circular saw c is fed counterclockwise to one tooth when viewed from the front, and the sliding table 24 is moved by the cylinder 25.
It moves forward and backward by moving forward and backward. When the saw moves forward, the tips a and d are set on the teeth e of the circular saw c, as shown in FIG.

Finally, the forward and backward movement mechanism of the sliding table 4 of the chip supply section A will be explained. A double cylinder 26 is provided on one side of the slide table 4 (see FIG. 4), and the tip of the rod 27 is connected to a protrusion 28 of the slide table 4. The double cylinder 26 consists of an outer cylinder 261 and an inner cylinder 262, a first piston 29 provided on the rod 27 slides within the inner cylinder 262, and a second piston 30 provided on the outer periphery of the inner cylinder 262 moves inside the outer cylinder. 261. 3
1 and 32 are air passages that supply and discharge air into the outer cylinder 261, and 33 and 34 are air passages that supply and discharge air to and from the inner cylinder 262. Also, the first piston 2
The amount of movement of the second piston 30 is A, and the amount of movement of the second piston 30 is B, where A corresponds approximately to the width of the chip a, and A corresponds to the distance between the two chip supply grooves 61 and 62. When the first piston 29 is in the forward position as shown in FIG. I am going to Further, when the second piston 30 moves forward by A, the flat blade d corresponds to the circular saw c.

Next, how to use the above device will be explained.

First, the parts feeder B (the one on the back side) containing the chips a is vibrated to send the chips a to the supply groove 61 through the supply path 7. Also, the motor 16 of the silver row supplying section C is started to supply the silver row B through the guide tube 17. The cylinder 8 is driven, the rod 9 is extended, and the tip a is advanced to the tip of the supply groove 61 by the claw 10 at the tip, and placed under the silver rod b. Next, slide table 2 of circular saw support part E
At the same time, as shown in FIG. 5A, the circular saw c is advanced by one tooth in the counterclockwise direction to bring the tooth e into contact with the tip a and set the tip a onto the tooth e. In this state, cylinder 2 of high-frequency heating device D
1 and lowers the rod 22 to bring the tip of the heating coil 20 close to the tip a (see FIG. 4). However, when the cylinder 21 is omitted, this operation is naturally omitted. The silver solder b is melted by the heating coil 20, and the chip a is soldered to the circular saw c. Ginro b is pulled and torn off.
After brazing, turn the circular saw c slightly clockwise and move it backwards (see Figure 5 b).

Next, in order to braze the chip a toward the opposite side of the circular saw c, the first piston 29 of the double cylinder 26 is moved back from the position shown in FIG. 4 (retreat amount: a). When it is moved backward, the next chip a is (4th
(See figure) This corresponds to the right side of the circular saw c, so if the same operation as above is performed here, the next chip a will be brazed to the right side of the circular saw c. However, the brazing positions are not necessarily brazed alternately one tooth at a time, but may be brazed every two or three teeth.

To braze the flat blade d, move the second piston 30 and sliding table 4 forward (advance amount: A) so that the chip supply groove 62 on this side of the brazing table 5 faces the circular saw c. Afterwards, perform the above operation. Note that when moving the sliding table 4 forward, the rod 22 of the high-frequency heating section D is extended in advance to release the heating coil 20 upward. Furthermore, the parts feeder B vibrates the feeder in front of it, sends out the flat blade e housed therein, and supplies it to the tip of the chip supply groove 62. After repeating the above steps and brazing is complete, move the circular saw C to the grinder and begin shaping and grinding the chips.

As explained above, this invention provides a plurality of chip supply grooves in the brazing table so that different types of chips can be supplied from the supply grooves, and
The brazing table can be moved in the direction perpendicular to the saw blade of the circular saw, and by small movements it is possible to distribute and set chips alternately in the thickness direction of the saw blade, and by large movements it is possible to set the chips in the chip supply groove corresponding to the circular saw. It is now possible to convert . For this reason, this device has the great advantage of being able to perform tasks that were conventionally performed in three separate steps, but can be performed continuously with one device.

[Brief explanation of drawings]

Fig. 1 is a front view showing a brazing machine for carbide chips according to this invention, and Fig. 2 is a -
A top view, Figure 3 is a perspective view showing the silver solder supply section, and Figure 4 is a perspective view showing the silver solder supply section.
The figure is an explanatory diagram showing the movement of the brazing table. FIG. 5 is an explanatory diagram showing the brazing operation. 1... Base, 5... Brazing stand, 61, 62
...Chip supply groove, 26...Double cylinder, 27
... Rod, 29 ... First piston, 30 ... Second piston, a ... Chip, c ... Circular saw, d ...
Flat blade.

Claims (1)

[Scope of utility model registration request] A plurality of chip supply grooves are provided on the brazing table that feeds and brazes chips to supply different types of chips, and the brazing table is moved in small and large directions in a direction perpendicular to the saw body of the circular saw. A carbide tip that can be moved in two stages, with small movements to alternately distribute and set the chips in the thickness direction of the saw body, and large movements to change the chip supply groove corresponding to the circular saw. brazing equipment.