KR20190088198A - Starting point recognition and control system for waterjet processing - Google Patents

Abstract

A waterjet processing starting point recognition and control system for recognizing and controlling a starting point of a waterjet processing, the system comprising: a fixed post fixed to the floor; A movable post made possible, and a post arm extending horizontally in the movable post; A post drive device for moving the movement post up and down with respect to the fixed post; A vision camera provided on the post arm so as to face the processing table of the water jet machining apparatus, a vision light provided on the post arm in parallel with the vision camera so as to face the same direction as the vision camera, And a processing unit for determining a position and a shape of the workpiece placed on the processing table using the processing unit; A water jet machining apparatus control unit for determining a machining start point based on a position and a shape of a work material acquired from the vision system and controlling the water jet machining apparatus; And a control unit.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a water jet processing start point recognition and control system,

The present invention relates to a water jet start point recognition and control system, and more particularly, to a water jet start point recognition and control system capable of recognizing a start point for machining a workpiece and starting machining at an accurate position, ≪ / RTI >

Waterjet processing is a processing method in which water is sprayed at ultra-high pressure (3000 ~ 4000 atm) and the material is cut using the energy of the water stream. Waterjet processing does not cause thermal deformation of the workpiece, does not generate dust during machining, and has a feature that the machining starting point can be freely selected.

Waterjet processing is suitable for machining difficult-to-process and difficult-to-process materials with different sizes and shapes because the starting point can be freely selected.

However, in order to process the difficult-to-process materials, which have different sizes and shapes, and the difficult-to-process materials, it is necessary to precisely determine the position and shape of the processed materials.

Considering that all the recent machining processes are performed automatically by computer control, it is necessary to precisely measure the position and shape of the workpiece and input it to the computer so that the computer can accurately recognize the start point of the machining and perform the machining It is important.

Conventionally, a machining table is provided with a guide tongue or a groove capable of contacting an end of a workpiece on either side of the machining table in order to mount the machining workpiece at a predetermined position.

The worker can grasp the position of the workpiece by fixing the workpiece to the guide chin or groove of the machining table and move the position of the machining device on the basis of the guide chin or groove to set the machining start point.

However, it is very troublesome and not precise to set the starting point of machining in this manner. Therefore, when the starting point of machining must be precisely set in order to finely process the workpiece, It is not effective to work with.

Korean Registered Utility Model No. 20-0310439 entitled "Waterjet Turntable Cutter" (registered on April 1, 2003)

SUMMARY OF THE INVENTION The present invention has been made in order to solve the problems of the conventional art as described above, and it is an object of the present invention to provide a water jet processing apparatus and method for processing a work material by taking an image of the work material, This paper proposes a waterjet machining start point recognition and control system that enables the recognition and control of the waterjet machining start point.

In order to solve the above problems, the present invention provides a waterjet starting point recognition and control system for recognizing and controlling a starting point of a waterjet processing, comprising: a fixed post fixed to the floor; And a post arm projecting horizontally in the movement post; A post drive device for moving the movement post up and down with respect to the fixed post; A vision camera provided on the post arm so as to face the processing table of the water jet machining apparatus, a vision light provided on the post arm in parallel with the vision camera so as to face the same direction as the vision camera, And a processing unit for determining a position and a shape of the workpiece placed on the processing table using the processing unit; A water jet machining apparatus control unit for determining a machining start point based on a position and a shape of a work material acquired from the vision system and controlling the water jet machining apparatus; And a control unit.

Preferably, the vision system further includes a hydraulic type automatic opening and closing type protective cover for protecting the vision camera and the vision lighting from foreign substances.

Preferably, the post-driving device includes a driving gear and a driving motor for driving the driving gear.

As described above, the waterjet processing starting point recognition and control system according to the present invention can accurately grasp the position and the shape by using the processing material vision system having the shape and the size of the manufacturing angle without having a formal shape, It is possible to precisely recognize and precisely control the starting point of the water jet process.

Particularly, the height of the non-electric post can be automatically changed according to the size of the workpiece, and the position and shape of the workpiece can be accurately recognized and numerically recognized and controlled by illuminating the workpiece.

1 is a side view of a waterjet machining start point recognition and control system according to an embodiment of the present invention,
Figure 2 is a top view of the waterjet machining starting point recognition and control system of Figure 1,
Fig. 3 is a rear view of the waterjet machining starting point recognition and control system of Fig. 1; Fig.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art can easily carry out the present invention. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. In order to clearly illustrate the present invention in the drawings, portions not related to the description are omitted, and like reference numerals are given to similar portions throughout the specification. Whenever a component is referred to as "including" an element throughout the specification, it is to be understood that the element may include other elements, not the exclusion of any other element, unless the context clearly dictates otherwise.

FIG. 1 is a side view of a waterjet machining start point recognition and control system according to an embodiment of the present invention, FIG. 2 is a plan view of a waterjet machining start point recognition and control system of FIG. 1, Fig.

The waterjet machining start point recognition and control system according to an embodiment of the present invention includes a vision post 100, a post drive device 200, a vision system 300, and a waterjet machining apparatus control unit (not shown).

The waterjet machining starting point recognition and control system of this embodiment is for recognizing the machining starting point in the water jet machining and controlling the water jet machining apparatus based on the recognition.

The vision post 100 includes a fixed post 110 fixed to the floor and vertically installed thereon, a movement post 120 provided on the upper portion of the stationary post 110 to move up and down along the stationary post 110, And a post arm 130 protruding in the horizontal direction in the post 120. [

The fixing post 110 may be installed on a movable base frame (not shown) or may be installed to be fixed directly to the peripheral floor of the water jet machining apparatus.

The movable post 120 provided at the upper portion of the fixed post 110 is for vertically moving the vision system 300 to be fixed to the post arm 130 together with the post arm 130, Lt; / RTI >

The post driving device 200 includes a driving gear (not shown) and a driving motor (not shown) for driving the driving gear. The post-driving device 200 including the driving gear and the driving motor is only an example and can be implemented in any form as long as it can be automatically controlled by the water jet processing device control unit.

In the post arm 130 of the vision post 100, a vision system 300 is provided. The vision system 300 includes a vision camera 310 facing the processing table of the waterjet processing apparatus and a plurality of vision lights 320 arranged side by side with the vision camera 310 in the same direction as the vision camera 310. [ And a processing unit (not shown) for recognizing the position and shape of the workpiece using the image photographed by the vision camera 310.

The vision camera 310 is for photographing a planar image of a workpiece placed on a processing table, and is a camera commonly used in computer vision.

The vision light 320 is used to illuminate a processing material placed on the processing table to obtain a clear image without shading when an image is captured by the vision camera 310. The vision light The position is fixed and the work material is always irradiated with a uniform brightness.

As shown in FIG. 2, the vision lamps 320 are provided in four positions so as to surround the vision cameras 310 at regular intervals. By illuminating the light with the vision illumination 320 to obtain a clean image, the image can then be easily processed in the processing unit.

The processing unit is for processing the photographed image at the vision camera 310 to extract numerical information. A computer vision processing method for extracting numerical information using an image in a processing unit is well known in the art, and thus a detailed description thereof will be omitted.

(Not shown) for controlling the water jet machining apparatus and determining the start point (coordinate value) of the water jet machining on the basis of the position and shape of the work material acquired from the vision system.

The waterjet processing device control (not shown) can be replaced by a general computer system, and is configured to process images of the taken machining material in a computer system without the need to provide a separate processing unit in the vision system when replaced by a computer system .

In this embodiment, a water jet machining apparatus control unit is provided together with the water jet machining apparatus control unit so that the water jet machining apparatus can be interlocked with the water jet machining start point recognition and control system according to the present embodiment without using a separate computer system.

Meanwhile, the vision system 300 of this embodiment is provided with a hydraulic type automatic opening and closing type protective cover (not shown) for protecting the vision camera 310 and the vision lamp 320 from foreign substances.

The hydraulic type automatic opening-and-closing type protective cover is an inflow-operated cover which is opened when image information of a workpiece is required to be opened, so that the vision system 300 can be normally operated. Processing is started by the water- The necessary parts are closed to protect foreign matter from entering the vision system 300.

The waterjet machining starting point recognition and control system according to an embodiment of the present invention is a system using computer vision. Therefore, it is possible to quickly and precisely grasp the position and shape information when machining workpieces with unfixed shapes on a machining table and using a waterjet machining device, precisely control the waterjet machining device, and implement a fully automated waterjet machining system .

It will be understood by those of ordinary skill in the art that various changes in form and details may be made therein without departing from the spirit and scope of the present invention as defined by the following claims .

It is therefore to be understood that the above-described embodiments are illustrative in all aspects but are not restrictive. For example, each component described as a single entity may be distributed and implemented, and components described as being distributed may also be implemented in a combined form.

The scope of the present invention is defined by the appended claims rather than the detailed description and all changes or modifications derived from the meaning and scope of the claims and their equivalents are to be construed as being included within the scope of the present invention do.

100: Vision post 110: Fixed post
120: Movement post 130: Post arm
200: Post drive device
300: vision system 310: vision camera
320: Vision lighting

Claims (3)

A waterjet machining start point recognition and control system for recognizing and controlling a machining start point in a water jet machining, the system comprising:
A non-electric post including a stationary post fixed to the floor, a movable post movable up and down along the stationary post, and a post arm protruding horizontally from the movable post;
A post drive device for moving the movement post up and down with respect to the fixed post;
A vision camera provided on the post arm so as to face the processing table of the water jet machining apparatus, a vision light provided on the post arm in parallel with the vision camera so as to face the same direction as the vision camera, And a processing unit for determining a position and a shape of the workpiece placed on the processing table using the processing unit;
A water jet machining apparatus control unit for determining a machining start point based on a position and a shape of a work material acquired from the vision system and controlling the water jet machining apparatus;
And a control unit for controlling the waterjet processing start point.
The method according to claim 1,
Wherein the vision system further comprises a hydraulic type automatic opening and closing type protective cover for protecting the vision camera and the vision lighting from foreign substances.
3. The method of claim 2,
Wherein the post driving device comprises a driving gear and a driving motor for operating the driving gear.

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