JP2599915B2 - Terminal processing method for long members - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a terminal processing of a long member in which necessary processing such as cutting is applied to a terminal of a long member which has been bent and formed into a deformed cross section in advance. It is about the method.

2. Description of the Related Art In general, when performing a process such as cutting to a terminal of a long member bent into an irregular cross-sectional shape such as a molding for an automobile or a sash for a building, a plurality of processing dies having different blade types are used. Processing is performed for each part to form a terminal of a long member into a predetermined shape as a whole.

Conventionally, when using this type of processing die, the processing die side is arranged in a fixed position, and the long member side is sequentially transferred so as to enter and leave each processing die, and processing is applied to the terminal of the long member. Normal (JP-A-60-96398-96400).

Problems to be Solved by the Invention However, in the above-described processing method, since the long member must be moved to a position corresponding to each processing die, the burden on the operator is large, and in order to cope with the automation, it is necessary to take a control aspect. There are difficulties.

Means for Solving the Problems In the method for processing a long member according to the present invention, a long member molded into a predetermined cross-sectional shape is held at a fixed position on the non-processed portion side, and A plurality of processing dies having different blade types are intermittently moved so as to approach or move away from one direction in the arrangement order, and the end side of the long member is set to the processing die which stops the intermittent movement at the fixed position. Necessary processing is performed on the terminal side of the long member in each processing type by moving in and out from the position.

In this method for processing the end of a long member, the long member is held in a fixed position, and the processing die side is mechanically intermittently moved so as to approach or move away from the holding position of the long member. In addition to reducing the burden on the operator to perform the terminal processing of the member, it is possible to intermittently control the movement of the processing die side, so that the terminal processing can be automated.

Embodiment The following is a description with reference to the accompanying drawings.

The apparatus shown in FIG. 1 holds a long member W previously formed into a predetermined irregular cross-sectional shape from a metal plate or the like at a fixed position, and sequentially intermittently moves from one direction to the fixed position. Multiple machining dies 1 each having a different blade shape
a, 1b… 1f are moved close to and away from each other, and these machining dies 1a, 1b… 1
When f stops intermittently at a predetermined position, the end of the long member W is sequentially inserted from a fixed position into the processing dies 1a, 1b... 1f arranged in the processing order to operate the processing dies 1a, 1b. This is applied to cut and form the end of the long member W into a predetermined shape.

Here, the long member W can be inserted into or removed from each of the processing dies 1a, 1b... 1f by the articulated robot 2 in which the hand portion 21 grips the non-processed portion, and can be rotated about the axis of the long member W. The articulated robot 2 preferably bends the long member W in each processing mold 1a by bending the joint under predetermined numerical control or in response to a playback, a variable sequence, or a fixed sequence. , 1b... 1f are fixedly disposed at fixed positions by a base plate 22 so as to rotate. The articulated robot 2 has a hand section.
A detector for detecting that the long member W has been gripped at 21 is provided. Each of the processing dies 1a, 1b,..., 1f is intermittently moved from one direction by a rotary table 3 that rotates intermittently with respect to a fixed position of the articulated robot 2 so as to perform a predetermined processing operation. Can be.

The illustrated embodiment uses a rotary table 3 mounted on a base frame 4 so as to be intermittently rotatable as a most preferable example.
When the rotary table 3 is stopped, the ram 51 of the press machine 5 descends with the crank 52 and the processing dies 1a, 1b. It is configured to apply a cutting process to the end of the long member W by pressing 1f.

As shown in FIG. 2, the rotary table 3 is formed so that its plane has a substantially donut shape. On its plate surface, for example, six processing dies, preferably floating dies 1a, 1
b ... 1f can be equipped at intervals of 60 degrees. It is to be noted that holes (not shown) for discharging cut chips are provided on the rotary table below each of the processing dies 1a, 1b... 1f. A gear 6 for intermittently rotating the rotary table 3 in the direction of the arrow X by a driving mechanism described later is meshed with an inner peripheral edge of the rotary table 3. Processing dies 1a, 1b… 1
A press machine 5 that presses f is arranged. The press machine 5 and the articulated robot 2 are connected to each other via a control box 7 so as to be able to operate jointly.
From the control box 7, machining dies 1a, 1
Energy supply paths 71 and 72 for supplying drive energy such as electricity and air to the energy transmission units 10a, 10b ... 10f of b ... 1f.
Has been withdrawn. Around the outer periphery of the rotary table 3, a brake 8 such as a cylinder having a brake shoe for stopping the rotational movement of the rotary table 3 is operated with a slight delay to the brake 8 and is fitted into an opening of the rotary table 3 to set the stop position. An operating mechanism including a vertically movable stopper pin (not shown) for regulating, a lifting mechanism 9 for rotating the rotary table 3 by lifting it as described later, and a switchboard for human use and a photoelectric tube for safety confirmation. A section 2 'can be provided.

Floating dies can be used as the working dies 1a, 1b... 1f, and a pair of right and left dies mounted on the plate surface of the rotary table 3 as shown in FIG. Guide 31 with die base plate
11 is positioned and locked, and a plurality of rotation stoppers 32
It is good to equip by fixing with. This floating die 1a is provided with a fixed die 13a and a movable die 13b on a die plate 12, as shown in FIG. 4. Among them, the movable die 13 which fixes the long member W during the operation of the processing die and opens after the operation.
An actuator 14 such as a cylinder which is removably mounted with a one-touch connector so as to move close to the fixed die 13a when the long member is clamped is connected to b. A plurality of guide posts 15 are planted on the die plate 12, and a punch 17 is mounted on a punch plate 16 supported by the guide posts 15 so as to be vertically movable. The punch 17, the fixed die 13a, and the movable die 13b work together to cut the long member into predetermined cuts and holes by pressing the press machine 5. Processing dies 1a, 1b… 1f
Are formed in different shapes. A block 18 for adjusting the vertical stroke of the punch 17 can be provided above the punch plate 16. Further, in the loading die 1a, a work terminal position detecting tool such as a limit switch, a photoelectric switch or the like is provided at a position farther than the dies 13a, 13b and the punch 17 with respect to a direction in which the long member shown in FIG.
19 can be installed in a detachable manner with a socket or the like.

The gear 6 meshing with the inner peripheral edge of the rotary table 3
As shown in FIG. 6, the driving motor 60 can be used to drive intermittently. The drive motor 60 is preferably provided with a speed reducer to increase the rotational torque. As shown in FIGS. 7 to 9, the drive mechanism has a rotary plate 61 mounted on a drive shaft 60a of a drive motor 60, and a floor pin 62 projecting from an eccentric position of the rotary plate 61 is mounted on the surface of the horizontal moving plate 63. A rack bar 65 fitted in the cam vertical groove 63a provided and supported in parallel on the left and right end sides of the horizontal moving plate 63 by the holding portion 64 is meshed with the pinion 66, and the pinion 66 is integrated with the gear 6. It can be configured by mounting on the drive shaft 68 of the mounted one-way clutch 67. An internal gear 33 with which the gear 6 meshes is mounted on the inner peripheral edge of the rotary table 3, as shown in FIG.
By forming 34, it is preferable that the guide plate 35 is slidably disposed on a guide plate 35 fixedly provided inside the rotary table 3.

In this drive mechanism, when a one-pulse current is supplied to the drive motor 60 by a command from the control 7, the drive shaft 60 of the drive motor 60
One rotation of a rotates the rotary table 3 by a predetermined angle. That is, as the drive shaft 60a of the drive motor 60 makes one rotation, the rotary plate 61 also makes one rotation. On the way, the floor pin 62 is rotated by the cam vertical groove of the horizontal moving plate 63 in FIG.
The horizontal moving plate 63 is moved to the left by continuously turning halfway along the 63a from the right middle side to the upper side and from the top to the left middle side, and the rack bar 65 is also driven to the left by this movement. Then, the clutch 67 is rotated clockwise together with the pinion 66. At that time, the clutch 6 is engaged with the bearing side of the drive shaft 68 and the mounting side of the gear 6 to rotate the gear 6 to rotate the rotary table 3 at a predetermined angle. At this time, the brake 8 is actuated to stop the rotation of the rotary table, but the drive motor 60 further rotates a half turn.
When a half turn is made from the left middle side downward and from the bottom to the right middle side along the cam vertical groove 63a, the horizontal moving plate 63 moves to the right and the rack bar 65 also follows to the right. As a result, the pinion 66 and the clutch 67 rotate counterclockwise.
At this time, the clutch 67 is disengaged from the bearing side of the drive shaft 68 and the mounting side of the gear 6 so that the clutch 67 idles in the opposite direction and does not transmit the driving force to the rotary table 3 from the point where the gear 6 does not rotate. Accordingly, in this drive mechanism, when the operation of each mechanism is represented by a diagram, even if the rotation angular velocity of the motor drive shaft rotates continuously by one rotation as shown in FIG. 12 becomes the state shown in FIG. 12, and the peripheral speed of the rotary table 3 becomes slower at the start and stop of rotation as shown in FIG. 13, so that the torque required at the start of the motor drive shaft 60a can be reduced. This is preferable because an overload is not applied to the drive motor 60 and a strong pressing force is not required for the stop brake 8 of the rotary table. If the weight of the rotary table and the weight of the processing die are not large, a Geneva mechanism or the like may be used instead of the drive mechanism of the present embodiment.

A lifting mechanism 9 attached around the outer periphery of the rotary table 3 mounts a support plate 91 at an appropriate position on the base frame 4 as shown in FIG. 14, and guides the support plate 91 between the support plate 91 and a cylinder portion 92 combined therewith. Arrange the piston part 94 stopped by the pin 93 and connect the supply nozzle 95 that acts on the piston part 94 with air pressure etc. to the cylinder part 92,
A roller 96 such as a ball, a cylindrical radial bearing, or the like is provided at the distal end side of the piston portion 94. In this lifting mechanism, when fluid pressure is applied to the piston portion 94 from the supply nozzle 95 during intermittent rotation of the rotary table 3, the piston portion 94 floats inside the cylinder portion 92 and presses the roller 96 against the bottom surface of the rotary table 3. As a result, as shown in FIG. 15, the rotary table 3 can be lifted slightly with the dimension h.
It is possible to rotate with low resistance only by contacting with 96. Further, the processing dies 1a, 1b...
As shown in FIG. 16, the nine energy transfer units 10a, 10b,..., 10f mount the socket holder 100 on the rotary table 3 and form a connection passage 103 between the electrical socket side contact 101 and the air tube 102 with the holder 100. It can be configured by the following. On the other hand, the side connected to the energy supply paths 71 and 72 derived from the controller 7 is the base frame 4
2, an air cylinder 74 is fixed by a support bracket 73 mounted on a corresponding adjacent portion of the vertically moving ram 51 of the press machine 5 as shown in FIG.
A plug holder 75 is connected to the tip of a rod 74, and a plug-side contact 77 urged by a spring 76 to the plug holder 75.
And a cylindrical air supply connector 78 having good sealing properties such as urethane and the like. As shown in FIG. 17, the energy transfer section 10a and the energy supply paths 71 and 72 move the air cylinder 74 to extend the stroke when the rotation of the rotary table 3 is stopped. By connecting the 103 and the connector 78, the working dies 1a, 1b,.

When the terminal cutting device for a long member configured as described above is applied, the long member W is not moved, and the long member W is intermittently moved while being held at a fixed position. Only the terminal side of the long member W needs to be put in and out and rotated, and the processing as shown in FIG. The long member W shown in FIG. 18a illustrates an example in which a synthetic resin is integrally extruded and formed on the surface of a metal core material by composite extrusion or the like, and the terminal thereof is trimmed t ₁ , as shown in each drawing order. trimmed t _2, cutting
C, trimming t ₃ , and piercing P can be performed. In addition, in this figure (18a-18f), although the long member W is illustrated always keeping the same attitude | position, in this embodiment, it rotates about the axis line of the long member W to a predetermined processing type. Since it can be inserted, the vertical movement of the ram 51 of the press machine 5 can be directly used as it is, so that the structure of the working mold can be further simplified. It is only necessary to intermittently move the respective working dies 1a, 1b... 1f so as to move close to or away from the fixed position where the long member W is taken in and out according to the working order.
The movement control can be easily performed by applying the rotary table described above.

Further, in the present embodiment, an example having six processing dies has been described. However, if the forming processing is completed with five or four processing dies, the fifth or fourth and fifth processing dies are provided. The rotary table can also be electrically controlled so as to skip the rotary table without stopping at the position of the mold.

Effects of the Invention As described above, according to the method for processing a long member according to the present invention, not only can the system be adapted to automation and reduce the burden on the worker, but also can efficiently process the terminal of the long member. Is what makes it possible.

[Brief description of the drawings]

FIG. 1 is an overall schematic perspective view showing a terminal processing apparatus for a long member for performing a method according to the present invention, FIG. 2 is a plan view of the apparatus, and FIG. 3 is a plan view of a processing die equipped in the apparatus. , FIG. 4 is a front view of the processing die, FIG. 5 is a side view of the processing die, FIG.
The drawing is an extraction plan view of a rotary table that moves the machining die intermittently, FIGS. 7 to 9 are explanatory views showing a drive mechanism of the rotary table, and FIG. 10 is a partial cross section showing an inner peripheral side of the rotary table. Fig. 11, Fig. 11 is a diagram showing the rotational movement of a drive motor for intermittently rotating the rotary table, Fig. 12 is a diagram showing the operation of a mechanism driven by the drive motor, Fig. 13 is the rotary table. FIG. 14 is a diagram showing intermittent rotation, and FIGS. 14 and 15 are explanatory diagrams showing the structure and operation of a lifting mechanism that lifts and rotates the rotary table. FIGS. 16 and 17 are processing dies mounted on the rotary table. FIGS. 18a to 18f are explanatory diagrams showing a terminal processing state of a long member performed by applying the method according to the present invention in a processing order. That. W: long member, 1a, 1b ... 1f: processing die, 2: articulated robot holding the long member at a fixed position, 3: rotary table for intermittently moving the processing die.

Continued on the front page (72) Inventor Kenji Kimizuka 4-2-27 Nishi-Aoki, Kawaguchi City Inside Shibakawa Works, Ltd. (72) Inventor Tadaaki Iwai 13-32 Nakamachi, Kawaguchi City Inside Iwai Steel Works, Ltd.

Claims (2)

(57) [Claims] An elongated member formed from a metal plate or the like into a predetermined cross-sectional shape is held at a fixed position on a non-processed portion side, and a plurality of processing dies each having a different blade shape are arranged at the fixed position. In order to intermittently move to approach or move away from one direction in order, the end side of the long member is put in and out of the fixed position in the processing die that stops the intermittent movement at the fixed position, and the long member is A terminal processing method for a long member, wherein necessary processing is performed on a terminal side. 2. The method according to claim 1, wherein said working dies are arranged at regular intervals on the same circumference so as to move toward or away from said home position by intermittent rotation. A method for processing the end of a length member.