JPH0649424Y2 - Drill unit slide mechanism - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to a drill unit in a gas cutting machine equipped with a drill unit.

[Prior Art] Conventionally, a flat plate such as a steel plate is cut by an NC gas cutting machine, and punching and tapping are separately performed by a drilling machine, and these processing machines are separately installed. Therefore, it requires an extra installation space, and
There was a problem that equipment for carrying between both processes was required.

In order to solve this, a gas cutting machine equipped with a drill unit capable of performing both cutting and drilling has been developed, which is disclosed in JP-A-62-279036, JP-A-62-289369 and JP-A-63-120045. It is disclosed in each publication.

In these conventional examples, the drill unit main body can be moved along one side of the cross beam in the width direction of the workpiece, and the drill for drilling is driven in the plate thickness direction by a certain machining stroke to drill the hole. It is designed to be processed. (As a representative example, refer to Japanese Patent Laid-Open No. 63-120045) [Problems to be solved by the invention] However, when drilling is performed in this type of drill unit-mounted gas cutting machine, the processing stroke of only the drill unit main body If you try to machine with, the machined plate thickness will be fixed by the machine stroke. Therefore, when trying to machine a plate thickness of more than a stroke, it is necessary to use a special long drill, which causes a large increase in machining time due to regrinding etc. when the cutting conditions are reduced due to its production and wear. Further, if the tool length is shortened by re-polishing, the machining ability is reduced, and thus there is a problem that the tool must be frequently replaced.

The present invention aims to solve the above-mentioned problems, and an object thereof is to provide a slide mechanism of a drill unit capable of solving the limitation on the plate thickness while using a standard drill.

[Means for Solving the Problem] The present invention provides a means for solving the above problem, and is a gas cutting machine equipped with a drill unit capable of performing both cutting and punching on a flat plate as a workpiece. In the above, the gist of a drill unit slide mechanism is characterized in that the drill unit is slid and fixed along one side of the cross beam 2, and the drill device 5 is vertically movable.

[Embodiment] The drawings show the structure of a drill unit according to the present invention. Fig. 1 is a front view thereof, Fig. 2 is a side sectional view thereof, and Fig. 3 is a plan view in which a part of a clamp portion is omitted.

This drill unit is slidable in the longitudinal direction of the cross beam 2 via the guide portion 6 by the meshing of the pinion 1a driven by the drive portion 1 and the rack 2a fixed to the cross beam 2. During the drilling work, the clamp cylinder 3a of the clamp part 3 is expanded and contracted to fix it to the cross beam 2.
It is designed to be transmitted to.

Reference numeral 4a denotes a limit slide interposed between the clamp portion 3 and the guide portion 6, which controls the expansion and contraction limit of the clamp cylinder 3a and also serves as a slide for absorbing a gap between the cross beam 2 and the clamp portion 3 during clamping. To fulfill.

Reference numeral 4 denotes a slide portion integrally attached to the back surface of the drill device 5, which is vertically movable along the limit guide 3b of the clamp portion 3.

Reference numeral 3c is a slide cylinder for moving up and down the slide portion 4, 3d is an air damper for shock prevention incorporated between the slide portion 4 and the limit guide 3b, and 3e is a limit guide 3b.
Is a supporting portion provided at the lower limit of.

[Operation] Next, the operation of the present invention will be described.

First, the drive unit 1 drives the pinion 1a that meshes with the rack 2a of the cross beam 2, and the guide unit 6 moves the entire drill unit along the cross beam 2 for positioning.

After positioning, it is fixed to the cross beam 2 by the clamp cylinder 3a of the clamp portion 3.

The drill cylinder 5 is moved up and down through the slide portion 4 by the slide cylinder 3c to perform the required drilling.

According to the present invention, the drill device 5 can be adjusted according to the plate thickness of the workpiece.
Since the drill for drilling can be driven by moving the drill for drilling in the plate thickness direction after moving up and down, the maximum lifting stroke of the drill is “the drilling stroke of the drill (tool) + drill Since it is the lifting stroke of the device 5 (main body), it can be increased by the lifting stroke of the drill device 5 (main body) compared to the conventional example in which the drill device main body does not move up and down, so a standard drill without using a long drill. Only by doing so, it is possible to perform a required perforating process on a flat plate having an arbitrary plate thickness.

[Effects] According to the present invention, the drill unit can be slid and fixed along one side of the cross beam 2, and the drill device 5 can be moved up and down, so that a standard drill can be used without using a long drill. There is an effect that it is possible to solve the limitation on the plate thickness while using only the plate.

[Brief description of drawings]

FIG. 1 is a front view of the device of the present invention, FIG. 2 is a side sectional view, and FIG.
The drawing is a plan view with a part omitted. 1: Drive part 1a: Pinion 2: Cross beam 2a: Rack 3: Clamp part 3a: Clamp cylinder 3b: Limit guide 3c: Slide cylinder 3d: Air damper 3e: Support part 4: Slide part 4a: Limit guide

Claims (1)

[Scope of utility model registration request] 1. A gas cutting machine equipped with a drill unit capable of performing both cutting and punching on a flat plate as a work material, wherein the drill unit is slid and fixed along one side of a cross beam (2). A drill unit slide mechanism, which is capable of moving the drill device (5) freely.