JPH072095Y2 - Chip processing device of tapping device added to turret punch press machine - Google Patents

Description

[Detailed Description of the Invention] [Industrial field of application] The present invention is equipped with a turret punch press machine having a tapping function, and is a chipping device for a tapping device that coaxially performs tapping and punching on a plate material. It is about.

[Conventional technology]

Generally, when performing tapping on a plate material, after making a pilot hole using a turret punch press machine, it is disclosed in JP-A-59-64220.
As described in Japanese Patent Publication, when processing using a separate machine for tapping processing, or when a tapping motor is attached to a part of the machine body of the turret punch press machine, and a tap is attached to the motor. The method of tapping is adopted.

Even in a punch press machine that is not a turret punch press machine, the motor and tap are installed in a part of the machine body that is separate from the punch holder and die holder, and the punch and die are used for the plate material that has a pre-drilled hole. The method of tapping is adopted.

[Problems to be solved by the device]

However, the method of performing tapping using a separate machine described in Japanese Patent Laid-Open No. 59-64220 is such that a plate material that has been positioned by the turret punch press machine and has been pre-drilled is once turret punch press machine. Since it is separated from the tapping machine and tapping is performed by the tapping machine again, the installation space for these machines becomes large, and due to the difference in the processing machines, errors may occur in the tap pilot hole position and tapping position due to the difference in the feed system. However, there is a drawback in that it is almost impossible to fix the plate material to the machine origin in exactly the same state as the turret punch press machine.

For this reason, it has been devised to install a device that performs tap processing on a turret punch press machine or a non-turret punch press machine, but in either method, the tapping position is the punching point such as punching or drawing. Therefore, there is no choice but to eccentrically significantly reduce the range of work that can be performed with a single plate clamp.

This causes a drawback that the performance of the tapping machine is significantly reduced when the tapping is performed by the same machine after punching.

Therefore, it would be extremely useful if a turret punch press machine capable of performing punching and tapping with the same machine and of course performing tapping coaxially with the punching axis was developed. From this point of view, the applicant of the present invention has already applied for utility model registration for the turret punch press machine as described above (Japanese Utility Model Application No. 62-195).
No. 990 (actual fair 4-50984)).

However, when using a turret punch press to perform tapping on the same axis as the punching axis, the fine chips created by tapping adhere to the outer circumference of the tap and are created on the plate by tapping. In addition to reducing the screw accuracy of the tap hole, the chips adhere to the die holder insertion guide surface and the inner surface of the hole for discharge of punching dust created during punching provided in the die turret, which makes the lower surface of the die turret and the sliding surface. There is a problem in that the sliding surface of the die turret and the slide plate are damaged by getting in between the slide plate to be formed and the slide plate.

[Means for Solving the Problems]

An object of the present invention is to provide a tapping chip processing apparatus capable of solving the above-mentioned problems in a turret punch press machine which is provided with a tapping device which enables tapping on the same axis as punching. The structure of the turret punch press machine is a turret punch press machine with a tapping device that enables tapping on the same axis as the punching process. Then, a die holder is placed on the die turret so that it can be exchanged, and a die with a brush inside is exchangeably placed inside the die turret, and at the time of tap cutting chips and tapping processing between the die turret and the die. It is characterized by a detachable cup for storing the applied lubricant drops. Is shall.

That is, the present invention is a turret punch press machine with a tapping function, in which a brush is installed in a die arranged in a die holder to remove fine chips adhering to the outer circumference of the tap during tap processing and This is intended to solve the problems of the prior art by making the cup provided between the die and the fine chips and the drop of the lubricating oil applied to the tap during tapping process to collect.

〔Example〕

 Next, an example of implementation of the present invention will be described with reference to the drawings.

FIG. 1 is a plan view of a punch turret of the turret punch press machine in which three tapping devices are incorporated. In the figure, 1 is a punch turret, TA is a tapping device,
P ₁ , P ₂ , and P ₃ are punch die holders, and PS is a punch turret support shaft.

FIG. 2 is a cross-sectional view of a turret punch press that performs tapping and punching on the same axis, and the details are as follows.

The collet chuck 4 to which the tap 3 is attached and the collet chuck 4 are inserted into the holes formed in the chuck holder 5, and the head side of the collet chuck 4 is tightened by the bolt 6 and pulled into the chuck holder 5 from below. It is press-fitted, and the chuck holder 5 is non-rotatably connected to the collet chuck 4 by a pin 7. The chuck holder 5 is rotatably and vertically movable by a holder guide 9 via a guide metal 8. On the other hand, the collet chuck 4 is formed with oil passage holes H and L through which the mounting bolt 6 penetrates on its axis.

The holder guide 9 is provided with a pin 10 on its outer surface, and the pin 10 is loosely fitted in a key groove 12 formed in a bushing 11 mounted in a hole for a punch die holder of the punch turret 1.
It is housed in the bushing 11 such that it cannot rotate and can move up and down.

Male and female screws M ₁ and M ₃ are respectively cut on the screwing surface of the gear case 13 that is integral with the upper part of the chuck holder 5 and the holder guide 9, and the pitch of these screws M ₁ and M ₃ is that of the tap 3. Screw M
Same as ₂ pitch.

Further, the gear 14 has a gear fastening member on the chuck holder 5.
It is fixed by 15 and fasteners 16.

Reference numeral 17 denotes a plate-shaped tool lifter fixed to the upper end of the holder guide 9, and a brake pad 18 that comes into contact with a gear 42 described later is attached to the upper surface thereof. Reference numeral 19 denotes a spring fitted between the tool lifter 17 and the punch turret 1 and fitted to a guide post 20 provided upright on the punch turret 1, for urging the tool lifter 17 upward from its lower surface. Is a plate material retainer fixed to the lower end surface of the holder guide 9, and has a hole through which the tap 3 is inserted at the center thereof. The plate material 70 is lowered during the tapping process to press and support the plate material 70 on the die turret 2. is there.

A tapping device TA is configured by the members 3 to 21 described above.

22 is a ram mounted on the machine body MB, 23 is a piston, 24 is a piston spring, 25 is a ram head integrally connected to the piston 17, and an oil passage hole K is formed in the ram head 25.
The oil passage hole K faces the oil passage hole L of the tapping device TA that contacts the lower end surface of the ram head 25.

Further, the lower end surface of the ram head 25 faces the upper surface of the gear case 16, and at the time of punching,
In the illustrated state, the ram 22 descends to press a punch (not shown). Also, during tapping, if pressurized air is pressed into the space a of the ram 22 in the illustrated state, the piston spring The piston 23 and the ram head 25 move down against the repellency of 24, and the ram head 25
The lower end surface of the gear case 16 contacts the upper surface of the gear case 16, and then the gear case 16 and the tool lifter 17 are lowered against the repulsive force of the spring 19 that biases the tool lifter 17 upward, and the tapping device TA moves inside the guide bush 11. Sliding down, plate material presser 21
The lowering of the piston 23 is stopped when the plate comes into contact with the plate 70 and presses and supports the plate 70.

That is, the above 22 to 25 constitute the fast-forwarding mechanism of the tapping device.

26 is a motor equipped in the machine body, 27 is a pulley, 28 is a shaft rotatably erected on a bracket 29 via a bearing 30, 31 is a pulley attached to the shaft 28, 32 is a gear,
A belt 33 is wound around the pulleys 27 and 31. Reference numeral 34 designates a shaft on which a piston 36 is loosely fitted via a bearing 35, and is mounted in the bracket 29 so as to be vertically movable integrally with the piston 36. A gear 37 meshes with the gear 32, which is fitted in the bracket 29 via a bearing 38 so as to be vertically movable above the shaft 34. A clutch gear 39 is fixed to the lower end of the shaft 34. I am doing it.

40 is a spring case fixed to the upper end of the shaft 34,
41 is a spring which is interposed between the case 40 and the gear 37 to urge the shaft 34 upward, and 42 is erected via an inner peripheral side bearing 43 of a punch holder which is provided around the upper surface of the punch turret 11. The gear mounted on the shaft 44 is formed larger than the gear 14 on the side of the tapping device, and meshes with the gear 14 above the tool lifter 17. When the tool lifter 17 is positioned above the gear 42, the gear 42 is provided with a brake pad 18 provided on the upper surface of the lifter 17 and a spring 19 on the lower surface thereof.
Due to the action of, it is pressed against and is prevented from rotating. Reference numeral 45 designates a gear which is provided at the upper end of the shaft 44 and meshes with the clutch gear 39 at the lower end of the shaft 34, and is a transmission for contacting and separating rotational power from the gear 14 on the tapping device TA side by the above 26 to 45. Configure the mechanism DM.

In the figure, 46 is a dog provided above the shaft 44, and 47 is a proximity switch attached to the bracket 29.

An example of the turret punch press machine with the tapping function for implementing the present invention is configured as described above.
An example of the chip disposal device of the present invention is configured as follows.

That is, FIG. 3 shows a state in which a chip processing device according to an example of the present invention is provided in a die holder arranged on a die turret so as to face a tap holder of a tapping device TA incorporated in the punch turret 1 to perform tapping processing. 51 is a slide plate that forms a sliding surface with the lower surface of the die turret 2, 52 is a stud bolt that stands on the die turret 2 and positions the die holder 55, and 53 is a pilot flange 59 that is fixed on the upper surface of the die turret 2. The die plate, 54 is the die holder 56 and the stud bolt
52 is a clamper for positioning and fixing to the die plate 53, 55 is a bolt for fastening the clamper 54 to the die plate 52, the die holder 56 has the die 57 inside and the pilot flange 59 is fixed, and the die 57 has a brush 58 on the inner upper surface. And a hole 57a through which the tap 3 passes is formed, and is removed by a fine cutting powder 61 brush 58 attached to the outer periphery of the tap 3 that enters the die 57 from the hole during tapping. . Reference numeral 60 is a cup that stores chips 61 and oil drops 62, and the die 57, brush 58, and pilot flange 59 can be replaced integrally with the die holder 56, and the cup 60 can be taken out of the machine after removing the die holder 56. It is like this.

Thus, in the state shown in FIG. 2, even if the lower end surface of the ram head 25 comes into contact with the upper surface of the gear case 16 by pressurizing air into the space a of the ram 22 to lower the ram head 25, the plate material pressing member 21 is pressed as it is. Causes the ram head 25 to descend to a state in which the plate member 70 abuts and supports the plate member 70 (see FIG. 3). In this state, if the pressurized air is sent into the space b of the cylinder formed in the bracket 29 and fitted with the piston 36, the piston 36 and the shaft 34 are lowered against the repulsive force of the spring 41, and the clutch gear 39 is moved. It meshes with the gear 45.

In this state, if the motor 26 is driven, its rotation is transmitted to the shaft 34 via the pulleys 27, 31, and gears 32, 37,
Since the clutch gear 39 integrated with 34 is rotated, the gear 42 coaxial with the gear 45 meshing with the clutch gear 39 is rotated to rotate the gear 14.

Therefore, the chuck holder 5 integrated with the gear 14, the collet chuck 4, the tap 3, the fastening material 15, the fastening metal 16, the bolt 6, and the pin 7 rotate together with the gear 14, and the chuck holder 5
Is screwed into the non-rotatable gear case 13 with the screws M ₁ and M ₃ having the same pitch as the screw M ₂ of the tap 3, so that as the rotation progresses per revolution, the travel distance per revolution of the tap 3 is the same. The plate material 70 is tapped by the taps 3 by descending in the metal 8 at a distance.

Thus, during tapping, the oil mist that is pressure-fed by the mist generator (not shown) through the oil passage hole K in the ram head 25 is supplied to the oil passage hole in the tapping device TA.
This oil mist is sent to L and H, and a certain amount of this oil mist is applied to the upper surface of the tap 3, the plate material 70, and the inner surface of the tap pilot hole through the split groove of the collet chuck 4, and the mist that has passed through the tap pilot hole is the cup 60. Housed inside. In this state, tapping processing becomes possible, and the tap 3 enters the die 57 as described above by driving the motor 26. The tap 3 entering the die 57 is as shown in FIG. The fine chips 61 adhering to the outer periphery of the tap 3 are removed by the brush 58, and are stored in the cup 60 together with the oil droplets 62 of the oil mist applied during tap processing.

[Effect of device]

The present invention is as described above, and the chip processing device of the tapping device added to the turret punch press machine of the present invention uses the turret punch press machine to remove the chips discharged during the tapping process by the tapping device as described above. Not only can it be accommodated in the accommodating cup without entering the sliding surface and guide surface configured in the above, but it also removes fine chips adhering to the outer circumference of the tap with a brush during tapping and is used during tapping. Since a drop of lubricating oil can also be accommodated, highly accurate screw machining is possible, and there is no risk of damaging the sliding surface between the die turret and the slide plate.

[Brief description of drawings]

FIG. 1 is a plan view of a punch turret incorporating three tapping devices, FIG. 2 is a cross-sectional view showing an example of a turret punch press machine having a tapping function, and FIG. 3 is a tap chip processing device of the present invention. FIG. TA ...... tapping device, P _1, P _2, P ₃ ...... punch holder, PS ...... punch turret support shaft 1 ...... punch turret, 2 ...... Daitaretto, 3 ...... tap, 4 ...... collet chuck 5 ... Chuck holder, 6 ... Bolt, 7
...... Pin, 8 …… Guide metal, 9 …… Holder guide,
10 …… pin, 11 …… bushing, 12 …… keyway, 13 ……
Gear case, 14 …… Gear, 15 …… Gear fastening material, 16 …… Fastening metal fitting, 17 …… Tool lifter, 18 …… Brake pad,
19 …… Spring, 20 …… Guide post, 21 …… Plate holder, M ₁ …… Screw around chuck holder, M ₂ …… Tap screw, M ₃ …… Gear case screw, L …… Oil passage hole, H ...
… Oil passage hole, 22 …… ram, 23 …… piston, 24 …… piston spring, 25 …… ram head, L …… oil passage hole,
26 …… motor, 27 …… pulley, 28 …… axis, 29 …… bracket, 30 …… bearing, 31 …… pulley, 32 …… gear,
33 …… belt, 34 …… axis, 35 …… bearing, 36 …… piston, 37 …… gear, 38 …… bearing, 39 …… clutch gear, 40 …… spring case, 41 …… spring,
42 …… gear, 43 …… bearing, 44 …… axis, 45 …… gear, 46 …… dog, DM …… transmission mechanism, 51 …… slide plate, 52 …… stud bolt, 53 …… die plate, 54
…… Clamper, 55 …… Bolt, 56 …… Die holder, 57…
… Die, 58… Brush, 59… Pilot flange, 60
…… Cup, 61 …… Chip, 62 …… oil drop

Claims (1)

[Scope of utility model registration request] 1. A turret punch press machine equipped with a tapping device that enables tapping on the same axis as punching, and a die turret is provided with a tap holder that holds a tap of the tapping device so as to rotate and move up and down. A replaceable die holder is placed on the top of the die holder, and a die with a brush inside is placed on the die holder so that it can be exchanged, and tap chips between the die turret and die and lubrication applied to the tap during tapping. A chip disposal device for a tapping device added to a turret punch press, characterized in that a cup for accommodating oil drops is detachably provided.