KR20160122290A - Jig for X-ray Examination - Google Patents

Abstract

Disclosed is a jig for X-ray imaging which can image all planes of an examination object while fixing an X-ray generator and a detector. According to an embodiment of the present invention, the jig for X-ray imaging comprises: a first rotation unit for rotating around a first rotation shaft parallel with an installation plane; and a second rotation unit having the examination object laid down on an upper plane, installed on the first rotation unit to rotate with the first rotation unit, and rotating around a second rotation shaft perpendicular to the first rotation shaft.

Description

Jig for X-ray Examination

The present invention relates to an x-ray photographing jig, and more particularly to an x-ray photographing jig capable of photographing all surfaces of an object to be inspected by allowing the object to be inspected to rotate about two rotational shafts orthogonal to each other.

2. Description of the Related Art Generally, a small electronic component such as a semiconductor chip or a resistance chip is mounted on a printed circuit board (PCB) embedded as a main component of an electrical and electronic product such as a household appliance or a computer by soldering.

Accordingly, the printed circuit board is subjected to a process of inspecting the soldered state of the mounted electronic component in the process of being embedded in the set of the electrical and electronic product. In order to check the soldering condition of the printed circuit board (PCB), an X-ray inspection apparatus is mainly used.

The above-described X-ray inspection apparatus for a printed circuit board is irradiated with X-rays onto a printed circuit board, which is supplied to the inside of a cabinet formed for forming an indoor space for shielding an X-ray and is set at an inspection position, And judges whether the soldered state of the printed circuit board to the soldered portion is positive or negative, through the image information output from the printed circuit board.

Meanwhile, in the conventional X-ray inspection apparatus for a printed circuit board, a jig on which a printed circuit board to be inspected is fixed, and an X-ray generator and an X-ray detector are fixed on the lower and upper sides of a printed circuit board set at a normal inspection position It is difficult to obtain various types of three-dimensional imaging angle of incidence with respect to the solder inspection region by inspecting the solder state. In particular, the soldering portion formed inside the printed circuit board having a multi- It is difficult to carry out a basic inspection because the image pickup is interrupted by the part.

1 is a view showing a conventional X-ray imaging apparatus.

1, the x-ray generator 30 is fixed to the printed circuit board 10 to be inspected, the x-ray detector 40 is installed in a variable state, A method of inspecting an x-ray of a printed circuit board and an inspection apparatus capable of obtaining stereoscopic image information of a region to be inspected have been developed.

However, in the conventional X-ray photographing apparatus, there is a problem that all surfaces of the printed circuit board 10 to be inspected can not be photographed because the jig 200 on which the printed circuit board 10 to be inspected is placed can not be moved or rotated.

SUMMARY OF THE INVENTION The present invention has been made to overcome the above-mentioned problems, and an object of the present invention is as follows.

An object of the present invention is to provide an x-ray photographing jig capable of photographing all surfaces of an object to be inspected while fixing the x-ray generator and the detector.

The problems of the present invention are not limited to the above-mentioned problems, and other problems not mentioned can be clearly understood by those skilled in the art from the following description.

According to an aspect of the present invention, an X-ray photographing jig includes a first rotating part and a second rotating part.

The first rotating portion rotates around a first rotation axis parallel to the mounting surface.

The second rotating part is disposed on the upper surface of the second rotating part, rotates together with the first rotating part, and rotates around a second rotating axis perpendicular to the first rotating axis.

The x-ray photographing jig of the present embodiment may further include a first rotation driving unit for rotating the first rotation unit and a second rotation driving unit for rotating the second rotation unit.

The second rotating part may be formed of an X-ray transmissive material.

The first rotating part and the second rotating part may be configured to be rotatable 360 degrees.

The first rotating unit may be configured to be movable in the x-axis, the y-axis, and the z-axis.

To this end, the x-ray photographing jig of this embodiment comprises a z-stage which vertically moves upward and downward with respect to an installation surface, an x-stage which is provided on the z-stage and moves horizontally in one direction with respect to the z- And a y stage that horizontally moves in a direction perpendicular to the movement direction of the x stage.

The first rotation unit may be installed on the y stage and move together with the y stage.

To this end, the x-ray photographing jig of the present embodiment may further include a z-axis driving unit for moving the z-stage, an x-axis driving unit for moving the x-stage, and a y-axis driving unit for moving the y-

An opening communicating with the first rotating part, the x stage, the y stage, and the z stage may be formed at the center.

Alternatively, the first rotating portion, the second rotating portion, the x stage, the y stage, and the z stage may have a plate shape of a transparent material.

The second moving unit may include a receiving unit provided on the second moving unit to receive the inspection object.

The effects of the present invention will be described below.

According to the x-ray photographing jig according to the embodiment of the present invention, the second rotating part on which the inspection object is placed rotates about the first rotation axis and the second rotation axis which are orthogonal to each other and moves in the x axis, the y axis and the z axis, Or all surfaces of the object to be inspected can be photographed without moving the detector.

The effects of the present invention are not limited to the effects mentioned above, and other effects not mentioned can be clearly understood by those skilled in the art from the description of the claims.

The foregoing summary, as well as the detailed description of the preferred embodiments of the present application set forth below, may be better understood when read in conjunction with the appended drawings. For the purpose of illustrating the invention, there are shown preferred embodiments in the figures. It should be understood, however, that this application is not limited to the precise arrangements and instrumentalities shown.
1 is a view showing a conventional X-ray imaging apparatus;
2 is a perspective view illustrating an X-ray photographing jig according to an embodiment of the present invention;
3 is a view illustrating a rotation of a first rotating part of an x-ray photographing jig according to an embodiment of the present invention;
4 is a view illustrating a rotation of a second rotating part of an x-ray photographing jig according to an embodiment of the present invention;
5 is a view showing a state where a z stage of an x-ray photographing jig according to an embodiment of the present invention is moved;
6 is a view showing a state where the x stage of the x-ray photographing jig according to the embodiment of the present invention is moved; And
7 is a view showing a movement of the y-stage of the x-ray photographing jig according to the embodiment of the present invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. It is to be understood, however, that the appended drawings illustrate the present invention in order to more easily explain the present invention, and the scope of the present invention is not limited thereto. You will know.

In describing the embodiments of the present invention, it is to be noted that elements having the same function are denoted by the same names and numerals, but are substantially not identical to elements of the prior art.

Also, the terms used in the present application are used only to describe certain embodiments and are not intended to limit the present invention. The singular expressions include plural expressions unless the context clearly dictates otherwise. In the present application, the terms "comprises" or "having" and the like are used to specify that there is a feature, a number, a step, an operation, an element, a component or a combination thereof described in the specification, But do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, or combinations thereof.

Hereinafter, an X-ray photographing jig according to an embodiment of the present invention will be described with reference to the drawings.

FIG. 2 is a perspective view showing a jig for taking an X-ray according to an embodiment of the present invention, FIG. 3 is a view showing a rotation of a first rotating part of an X-ray photographing jig according to an embodiment of the present invention, FIG. 5 is a view showing a rotation of a second rotating part of an x-ray photographing jig according to an embodiment of the present invention;

2 to 4, the x-ray photographing jig according to an embodiment of the present invention includes a first rotating part 100 and a second rotating part 200. As shown in FIG.

The first rotation part 100 rotates around a first rotation axis parallel to the installation surface. An opening may be formed at the center of the first rotary part 100 so that the X-ray can pass through the opening. In this embodiment, the first rotary part 100 is a sagittal frame, and a second frame, which will be described later, may be located inside the first rotary part 100.

The first rotation part 100 can be rotated by the first rotation driving part 120. For example, the first rotation driving part 120 may include a first motor 122 for rotating the first rotation part 100.

The first rotation driving part 120 may rotate the first rotation part 100 by 360 degrees. Also, the first motor 122 of the first rotation driving part 120 may rotate in the forward direction or the reverse direction to rotate the first rotation part 100 in the forward direction or the reverse direction.

The second rotary part 200 may be in the form of a rectangular plate positioned inside the first rotary part 100 having a rectangular frame shape. The object to be inspected is placed on the upper surface of the second rotating part 200. The second moving part may include a receiving part 240 provided on the upper part of the second moving part and on which the object to be inspected is placed.

Generally, since an X-ray generator (not shown) is disposed on the upper part of the object to be inspected and a detector (not shown) is disposed on the lower part of the object to be inspected or vice versa, the second rotary part 200, If it is formed of a material, defect inspection of the inspection object is impossible.

Therefore, the second rotary part 200 can be applied to an X-ray transmissive resin heater column, a carbon annealing furnace, or the like. In addition, a transparent material may be applied to the second rotation part 200. However, the material of the second rotary part 200 is not limited to the above-described materials, and any transparent X-ray transmissive material can be used.

The second rotating part 200 is installed on the first rotating part 100 and rotates together with the first rotating part 100 and rotates about a second rotating axis which is perpendicular to the first rotating axis.

The second rotation part 200 can be rotated by the second rotation driving part 220. For example, the second rotation driving part 220 includes a rotation shaft 222 coupled to the second rotation part 200 and rotating about a second rotation axis, and a second motor 224 rotating the rotation shaft 222 .

The second shaft may be arranged to cross the second rotation part 200 from one side of the first rotation part 100 to the other side of the first rotation part 100. [ Thus, the second rotary part 200 can rotate around the first rotary shaft and rotate around the second rotary shaft according to the rotation of the first rotary part 100. [ Accordingly, the objects to be inspected placed on the second rotary part 200 can rotate in the first and second rotation axes, i.e., biaxial directions, arranged vertically to each other.

The second rotation driving part 220 may rotate the second rotation part 200 by 360 degrees. Also, the second motor 224 of the second rotation driving unit 220 may rotate in the forward or reverse direction to rotate the second rotation unit 200 in the forward or reverse direction.

Since the first rotating part 100 and the second rotating part 200 are configured to be rotatable as described above, the camera can photograph the front surface of the object to be inspected.

FIG. 5 is a view showing a state where a z stage of an x-ray photographing jig according to an embodiment of the present invention is moved, FIG. 6 is a view showing a state where an x stage of a jig for taking an x- And FIG. 7 is a view showing a movement of the y-stage of the x-ray photographing jig according to the embodiment of the present invention.

5 to 7, the first rotary part 100 may be configured to be movable in the x-axis, the y-axis, and the z-axis.

To this end, a z-stage 300 vertically moving up and down with respect to the mounting surface is installed on the z-stage 300 and moves up and down together with the z-stage 300, A x stage 400 that horizontally moves in one direction with respect to the x stage 400 and a y stage 500 that horizontally moves in a direction perpendicular to the moving direction of the x stage 400, 100 may be installed on the y-stage 500 and move together with the y-stage 500.

To this end, a z-axis driving unit 320 for moving the z-stage 300, an x-axis driving unit 420 for moving the x-stage 400, and a y-axis driving unit 420 for moving the y- .

The z-axis driving unit 320 includes a first LM guide 322 vertically installed on a mounting surface having a thread on the outer circumference, a first LM block 324 coupled to the z stage 300 and having a ball screw therein, And a z-axis driving motor 326 for rotating the one LM guide 322. [ Accordingly, when the z-axis driving motor 326 rotates the first LM guide 322, the first LM block 324 with the ball screw is moved upward and downward along the first LM guide 322, The z stage 300 coupled with the one LM block 324 can move in the up and down directions.

The x-axis driving unit 420 may be installed on the z-stage 300. Thus, the x-axis driver 420 and the x-stage 400 can move up and down together with the z-stage 300. The x-axis driving unit 420 includes a second LM guide 422 having a screw thread, a second LM block 424 coupled to the x stage 400 and having a ball screw therein, a second LM guide 422 Axis drive motor 426. The x- However, the second LM guide 422 of the x-axis driving part 420 may be installed in a horizontal direction with respect to the mounting surface. Accordingly, when the x-axis driving motor 426 rotates the second LM guide 422, the second LM block 424 with the ball screw is moved in the horizontal direction along the second LM guide 422, The x stage 400 coupled with the block 424 can move in the horizontal direction.

The y-axis driving unit 420 may be installed on the x-stage 400. Thus, the y-axis driving unit 420 and the y-stage 500 can move in the horizontal direction together with the x-stage 400. The y-axis driving unit 420 includes a third LM guide 522 having a screw thread formed therein, a third LM block 524 coupled to the x stage 400 and having a built-in ball screw, and a third LM guide 522 Axis drive motor 526. The y- However, the third LM guide 522 of the y-axis driving unit 420 may be installed in a direction perpendicular to the second LM guide 422, Accordingly, when the x-axis driving motor 426 rotates the third LM guide 522, the third LM block 524 with the ball screw is moved along the third LM guide 522 so that the third LM block 524 The y stage 500 coupled with the x stage 400 can be moved in a direction perpendicular to the x stage 400.

The first rotary part 100 is installed on the y stage 500 so that the first rotary part 100 can move together with the movement of the x stage 400, the y stage 500, and the z stage 300.

Thus, the inspection object located on the second rotary part 200 can move in the x, y, z 3 axis directions, and can rotate around the first rotation axis and the second rotation axis to inspect all parts of the inspection object.

Here, openings may be formed in all of the x-stage 400, the y-stage 500, and the z-stage 300. the openings formed in the x-stage 400, the y-stage 500 and the z-stage 300 can always be partially communicated despite the horizontal movement of the x-stage 400 and y-stage 500.

Alternatively, the first rotating part 100, the second rotating part 200, the x stage 400, the y stage 500, and the z stage 300 may all have a plate shape of a transparent X-ray transmissive material. Thereby, the x-ray generated in the x-ray generator (not shown) can reach the detector (not shown).

It will be apparent to those skilled in the art that the present invention can be embodied in other specific forms without departing from the spirit or scope of the invention as defined in the appended claims. It is obvious to them. Therefore, the above-described embodiments are to be considered as illustrative rather than restrictive, and the present invention is not limited to the above description, but may be modified within the scope of the appended claims and equivalents thereof.

10: printed circuit board 20: jig
30: X-ray generator 40: detector
100: first rotating part 120: first rotation driving part
122: first motor 200: second rotating part
220: second rotation driving part 222: rotating shaft
224: second motor 240:
300: z stage 320: z axis driver
322: first LM guide 324: first LM block
326: z-axis driving motor 400: x stage
420: x-axis driving part 422: second LM guide
424: second LM block 426: x-axis drive motor
500: y stage 520: y-axis driver
522: third LM guide 524: third LM block
526: y-axis drive motor

Claims (10)

A first rotating part that rotates about a first rotating shaft parallel to the mounting surface; And
A second rotating part placed on the first rotating part and rotating together with the first rotating part and rotating about a second rotating shaft which is perpendicular to the first rotating shaft;
Ray photographing jig. The method according to claim 1,
Further comprising: a first rotation driving part for rotating the first rotation part; and a second rotation driving part for rotating the second rotation part. The method according to claim 1,
And the second rotating part is formed of an X-ray transmissive material. The method according to claim 1,
And the first rotating part and the second rotating part are rotatable 360 degrees. The method according to claim 1,
The first rotating part
A jig for x-ray photography that can be moved along the x, y, and z axes. 6. The method of claim 5,
A z stage vertically moving upward and downward with respect to an installation surface;
An x stage installed on the z stage and horizontally moving in one direction with respect to the z stage; And
A y stage provided on the x stage and horizontally moving in a direction perpendicular to the moving direction of the x stage;
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And the first rotating part is installed on the y stage and moves together with the y stage. The method according to claim 6,
Further comprising a z-axis driving unit for moving the z-stage, an x-axis driving unit for moving the x-stage, and a y-axis driving unit for moving the y-stage. The method according to claim 6,
And an opening portion communicating with each other is formed at the center of the first rotating portion, the x stage, the y stage, and the z stage. The method according to claim 6,
Wherein the first rotating portion, the second rotating portion, the x stage, the y stage, and the z stage have a plate shape of a transparent material. The method according to claim 1,
The second moving unit includes:
And a support portion provided on an upper portion of the second moving portion and on which the inspection object is placed.

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