JP3245578U - Hole processing equipment such as hexagonal - Google Patents

Abstract

[Problem] To provide a simple device that is compact and easy to use, capable of machining holes such as hexagonal holes even in a small number of prototypes. [Solution] A pedestal 4 that matches the workpiece 19 is fitted into the head 6 of the hole processing device main body 1, the workpiece is set there, a punch 3 with a nut fitted in advance is inserted into the guide 2, and the guide and the workpiece are inserted into the guide 2. Once inserted into the hole in the arm 5 of the main body, pressure is applied using a vise, vise, hand press, or other hammer 18, and finally, the punch that has bitten into the workpiece is pulled off by turning the nut 14 with a spanner. [Selection diagram] Figure 1

Description

This invention creates a space between the arm part of the hole processing device body and the head part where the product is placed, leaving only the support part. This is a hole machining device that allows the pedestal and workpiece to be taken in and out from the side.

The present invention is composed of four parts including the main body, and the punch and receiving seat are manufactured each time according to the user's needs and size conditions.

As a way to separate the punch that has bitten into the workpiece, the punch is equipped with a threaded section and a wrench hook.

Up until now, for the hexagonal hole part, we either had to ask an electric discharge machining company to do just that part, or when we were in a hurry, we purchased a commercially available hexagonal bolt, cut off the head, and welded that part to the product. .

Outline of idea

The problem that the idea aims to solve

For cutting companies that handle prototypes and R&D products, including myself, machining hexagonal holes is naturally sometimes included in the process.
However, in reality, unfortunately, the frequency of orders was small, and common sense suggested that it would be safer to refuse orders from the beginning rather than to purchase expensive equipment and tools.
I had always wondered if there was a better way to easily machine hexagonal holes without incurring unnecessary costs, and creating this processing device was a lifelong dream.

Means to solve problems

The present invention is compact with economical aspects in mind, and is capable of machining not only hexagonal holes but also square and triangular holes for things such as eccentric shafts and eccentric screws. In addition to the ability to process internal knurling according to the pitch and pitch, it is easy and practical to meet the requirements by applying pressure using whatever you have nearby, such as a hand press, vise, vise, or hammer. Although I was proud of the device's wide width, I was actually faced with the drawback that the punch could not easily come out of the workpiece.
The problem was solved by attaching a peeling nut screw and a wrench hook to the punch, and after driving, using a spanner to turn the nut that had been installed in the screw part in advance, the workpiece could be separated from the punch. I was able to do that.
Furthermore, the machining of eccentric shafts and eccentric screws has been made easier by taking into account the rotational outer circumferential diameter of the eccentric shaft.For example, the screw head is 15 mm and the shaft is 8 mm. If a 5mm screw is attached to the tip, and only the middle 8mm shaft is eccentric by 1mm, the virtual circumference of the outer diameter is 10, so the catch seat is 15mm from the screw head. I realized that if I set the counterbore and center hole to 10+alpha, I could naturally meet the requirements.
Note that the catch seat must be manufactured each time according to the conditions of the workpiece, but for those with experience in cutting, it is just like a flanged washer with a counterbore, and there is no problem in manufacturing it. Naturally, it is included in the work process.

We created a space between the arm and the head by leaving one pillar part of the main body, making it easy to visually put in and take out the pedestal and workpieces, making work smoother. The punch for drilling holes was equipped with a wrench hook on two sides and a threaded part to use a nut to separate the punch that had bitten into the workpiece.

Effect of invention

As mentioned above, for cutting companies that have mainly dealt with small numbers of products such as prototypes and research and development products, in addition to the scope of work, there are also costs and discussions with users about what can be done or not. In addition, we were able to provide more leeway in terms of contracted delivery dates, etc.

In the case of eccentric shafts, eccentric screws, etc., some items require holes to be drilled during the machining process, so the use of this hole-machining device has made the work process smoother.

Insert a pedestal that matches the workpiece into the head of the hole processing device, set the workpiece there, insert a punch with a nut fitted into the guide, and insert the guide into the hole in the arm of the main unit. Apply pressure with a vise, vise, hand press, or other hammer, and finally, once the punch has bitten into the workpiece, turn the nut with a spanner and pull it apart.

FIG. 2 is an overall view of the hexagonal hole machining device from the side. This is a view from the front. Image diagram

Embodiments will be described below with reference to the accompanying drawings. 1 is the main body of the device, 2 is a guide arm, and a guide hole is drilled in the center.
3 is the head part of the main body, and there is a hole in the center to accommodate the pedestal 9, which fits the processed product, and the part 6 is a space created to make it easier to put in and take out the pedestal 9 and processing supplies. The punch No. 11 has a thread for a nut No. 13 cut at the base of the cutting edge No. 14 at the tip, and is further provided with a wrench hook No. 12.
As an example, first, fit the pedestal into the head of the main body, set the workpiece there, and then insert a punch with a nut set into the guide.
The reason is that the peeling nut is larger than the hole in the guide that the punch passes through, so first pass the punch with the nut set through the guide, and then insert the punch into the guide hole in the arm along with the guide. Insert it into the
Then, pressure is applied to the punch with a hammer or other tool, and the punch, which has been driven into the workpiece, is pulled away from the workpiece by turning the nut with a wrench and the process ends.

Currently, hexagon socket head bolts are inexpensive and mass produced, but it is well known that the equipment used to produce them is unsuitable for processing small numbers of bolts.
In contrast, for small quantities for research and development, and even for irregularly shaped items such as eccentric screws, or non-standard items, if you have just the main body, then you can create a pedestal with the necessary shape and dimensions. This device, which proves that the punch can be used to process inner diameter knurls, is extremely simple and easy, and anyone who considers themselves a machining craftsman can manufacture it with just a simple diagram. Since it's just a tool, you may have to make it yourself, but it can be predicted that the device of this invention will become common knowledge among craftsmen in the future.

It has been a long-held dream that it has become possible to process eccentric screws and eccentric shafts with hexagonal holes, etc. Especially in the case of eccentric shafts, as far as I know, it is necessary to make adjustments after assembling the product using spanners and screwdrivers. It is normal that it is adjusted by
Then, I realized that, unlike in the world of AI, the adjustment of the eccentric axis is a part that is finely adjusted with the fingertips or the experience and intuition of the operator. Using a hexagonal wrench is much easier to use and more convenient than using a spanner or screwdriver, and there is no doubt that the use of hexagonal wrenches will have a large effect on the spread of design and prototyping.

1 Hexagonal hole machining device body 2 Guide 3 Punch 4 Product pedestal 5 Arm 6 Head 7 Support 8 Space 9 Product pedestal receiving hole 10 Guide hole 11 Punch guide hole 12 Spanner hook 13 Product peeling screw 14 Product peeling Nut 15 Punch tip 16 Image vise 17 Vise handle 18 Image hammer 19 Workpiece

Claims (1)

It has an arm part, a head part, a support part, and a pedestal part, the support part connects the arm part and the head part, and the pedestal part can be detachably provided on the upper surface of the head part, and the position where the pedestal part is provided is , a hole machining device whose size can be adjusted.

Images