JPH0340419Y2 - - Google Patents

Description

[Detailed description of the invention] (Field of industrial application) The present invention relates to an improvement of a drilling device for pipe members, which retains falling punch waste inside the pipe member and returns it to the original position of the reciprocating die member. When the pipe member moves, it is automatically dropped to the outside of the pipe member and discharged.

(Prior art) Conventional pipe member drilling equipment was developed in the 1970s.
There is a device disclosed in the -35918 publication. In the above method, a backing plate is placed vertically above the holder to abut the end of a shaped material such as a square pipe, and a punch guide hole is drilled that extends vertically through the end of the shaped material and covers the end of the shaped material. However, a punching scrap receiving plate that is pivoted to the tip of the support base and can swing freely is disposed below the support base. It has the disadvantage that it cannot be removed from the stand, and we cannot know anything about the operating mechanism of the oscillation.

(Problems to be Solved by the Present Invention) In view of the above, the present invention provides a device that can automatically remove punch waste without shaking the punch waste receptacle as the die member retreats to its original position after drilling a hole. The purpose is to develop.

(Means for Solving the Problems) The present invention has a specific configuration to achieve the above object, and is located on the outer periphery of the pipe P supplied to the drilling position and reciprocates in the direction intersecting the axis of the pipe P. The punch 1 operates, and the punch 1 is inserted from the end of the pipe member P at the supply position and the die part 4 is moved.
In the hole punching device, the die member 2 is provided with a hole 5 for dropping punch waste below the die part 4, and the die member 2 protrudes from a mounting block 3 that reciprocates the die member 2. A rod 8 with a fixed rear end is slidably passed through the mounting block 3 below the die member 2, and the rod 8 normally protrudes forward from the punch waste drop hole 4 and connects the die member 2 to the pipe P. A device for drilling a pipe member, characterized in that it has a vertical pressure receiving part 7 that abuts against the pipe P when inserted, and is also equipped with a punch waste receiver 6 that is inserted into the pipe member P together with the die member. In addition, the automatic discharge of punch waste is simple and the speed of hole drilling can be increased easily.

(Example) A preferred embodiment of the present invention will be described.

The attached drawings show an embodiment of the present invention, in which Fig. 1 is a longitudinal sectional side view showing the arrangement of each member before drilling, Fig. 2 is a longitudinal sectional side view showing the drilling process, and Fig. 2 is a longitudinal sectional side view showing the arrangement of each member before drilling. FIG. 3 is a longitudinal sectional side view showing the retreat of the die member to its original position.

In the figure, reference numeral 1 denotes a punch, which is positioned above the outer periphery of the pipe member P to be supplied to the hole-drilling position in FIG. 2, and reciprocates in a direction orthogonal to the axis of the pipe member P.

Reference numeral 2 denotes a protruding die member that is fixed to the mounting block 3, and has a shape that roughly matches the inner circumferential upper surface of the pipe member P. The block 3 is reciprocated by a cylinder or the like (not shown), and the die member 2 is fixed to the mounting block 3 and projects. The die member 2 is provided in the die part 4 which reciprocates between the original position shown in FIG. 3 and the hole punching position shown in FIG. A punch waste falling hole 5 is provided on the lower side.

A rod 8 is slidably passed through the mounting block 3 below the die member 2. The rear end of the rod 8 is fixed to an immovable part, and a vertical pressure receiving part 7 formed in the punch scrap receiver 6 is attached to the tip of the rod 8. A coil spring 9 is loosely wound between the mounting block 3 and the pressure receiving part 7.

When the mounting block 3 is moved backward as shown in FIGS. 1 and 3, the punch waste receptacle 6 whose rear end is fixed to the fixed rod 8 moves forward relatively to be in front of the punch waste drop hole 5. Coil spring 9 is extended.
When the pipe member P moves forward to the supply position, the pipe member P hits a pressure receiving portion and is positioned for drilling.

The die member 2 is moved between the upper surface of the punch waste receiver 6 and the upper inner surface of the pipe member P. The die member 2 and the punch waste receiver 6 relatively enter from the end of the pipe member P with a distance L shown in FIG.

The coil spring 9 is not absolutely necessary for the present invention.
This is because the rear end of the rod 8 is fixed.

10 is a discharge chute.

(Function) The present invention supplies the pipe member P to the supply position by gripping it with a chuck or the like or by hand, and at the same time,
Alternatively, slightly prior to the supply, the die member 2 is moved to the supply position by the mounting block 3 and inserted from the end of the pipe member P (FIG. 2).

In this way, the die part 4 of the die member 2 is aligned with the punch 1 across the pipe member P, the hole Pa is opened by reciprocating the punch, and the punch waste Pb is dropped into the punch waste drop hole 5 and placed on the punch waste receptacle 6. support.

When the punch 1 is placed above the pipe member P, the mounting block 3 and die member 2 are simultaneously retreated to their original positions. Since the rod 8 and the punch waste receiver 6 do not move, the punch waste Pb is collected together with the punch waste drop hole 5. The punch scraps Pb slides on the punch scrap receiver 6 and comes off to the rear of the punch scrap receiver 6 as shown in FIG.
discharge to the outside.

(Effects) The present invention provides a punch that is inserted into a conventionally known pipe member drilling device from the end of the pipe member P to be supplied to the supply position and placed on the lower surface of the die member 2 that enters the drilling position. The rear end of the waste receptacle 6 is attached to a rod 8 whose rear end is fixed, and the die member 2 is fixed to a mounting block 3 that moves back and forth so that it enters the pipe member P at the drilling position by moving forward and comes off by moving backward. At the same time as the die member 2 retreats to its original position, the punch waste drop hole 5 is removed from the end of the punch waste receiver 6 and the pipe member P is removed.
The structure is such that punch waste Pb is not left on the lower wall, and this has the effect that punch waste Pb can be automatically discharged at high speed without having to move the punch waste receiver 6 by swinging or otherwise moving as in the conventional case. be.

[Brief explanation of the drawing]

The attached drawings show an embodiment of the present invention, in which Fig. 1 is a longitudinal sectional side view showing the arrangement of each member before drilling, Fig. 2 is a longitudinal sectional side view showing the drilling process, and Fig. 2 is a longitudinal sectional side view showing the arrangement of each member before drilling. FIG. 3 is a longitudinal sectional side view showing the die member retreating to its original position. 1... Punch, P... Pipe member, Pa... Hole,
Pb...Punch waste, 2...Die member, 3...Block, 4...Die part, 5...Punch waste falling hole, 6
...Punch waste receptacle, 7...Vertical section, 8...Rod, 9...Coil spring, 10...Chute.

Claims (1)

[Claim for Utility Model Registration] A punch 1 that is located on the outer periphery of a pipe P to be supplied to a drilling position and reciprocates in a direction intersecting the axis of the pipe P, and an end of the pipe member P that is moved to a supply position. a die member 2 inserted from the punch 1 to align the die portion 4 below the punch 1;
In this drilling device, the die member 2 is protruded from a mounting block 3 that reciprocates, and a rod 8 with its rear end fixed to the die is inserted into the mounting block 3. The rod is slidably passed under the member 2, and has a vertical pressure receiving portion 7 that always protrudes forward from the punch waste drop hole 4 and abuts against the pipe P when the die member 2 is inserted into the pipe P. A pipe member drilling device characterized in that a punch waste receiver 6 is attached which is inserted into the pipe member P together with the die member.