KR102014848B1 - Squareness and parallelism inspection apparatus - Google Patents

Abstract

The present invention relates to a perpendicularity and parallelism inspection device for performing a perpendicularity and parallelism inspection for a pair of LM guides so as to adjust the perpendicularity and parallelism within an error range. According to the present invention, provided is the perpendicularity and parallelism inspection device comprising: a block fixing part coupled to one of the blocks moving along a rail disposed in a longitudinal direction on top of each of the pair of bases; a moving support part coupled to the block fixing part and having a moving slit formed in a direction perpendicular to the rail; and a gauge measuring part which is fixed to a specific position of the moving slit, and measuring perpendicularity between the rails and the bases to which the block fixing part is coupled or parallelism between mutually opposite rails.

Description

Squareness and Parallelism Inspection System {SQUARENESS AND PARALLELISM INSPECTION APPARATUS}

The present invention relates to a squareness and parallelism inspection technology, and more particularly, to a squareness and parallelism inspection apparatus for performing a squareness and parallelism inspection for a pair of LM guides to adjust the squareness and parallelism within an error range will be.

In general, in a complex system operating a specific mechanical device (for example, a robot), a pair of moving lines are installed to move a mechanical device, and a pair of moving lines are parallel to each other because they perform an important function due to system characteristics. It must be kept accurate.

The pair of moving lines measures whether the other side of the rail is at a constant distance from the rail of one side and adjusts the parallelism of the rail while moving the rail left and right through the adjustment of the rail fixing groove and the adjusting bolt.

If a pair of moving lines are not parallel, the rails cannot be mounted in a straight line if the deviation occurs. In addition, the parallelism between the rails is not constant and the distance between the rails is wide or narrow. When you move, you get resistance, so you can't slide smoothly. In severe cases, noise and stoppage occur.

In order to prevent this phenomenon, rails which are opposed to each other must be installed in parallel. In the related art, one of a pair of rails is selected as a reference rail, and in a state where the scale of the measuring member is placed on the reference rail and the measurement rail to be connected The measuring instrument was artificially moved while adjusting the reference scale to check whether the measuring rail was kept at a reference distance from the reference rail.

However, the accuracy is maintained only when the parallelism tolerance of the rail is within 0.02mm. Thus, since the conventional technology has been confirmed primitive by using a measuring device, a large measurement error occurs and the accuracy of the measurement is not reliable and the measurement time is too much. This can be a factor in reducing productivity, and because of the inability to maintain parallelism, it also causes problems in the performance of machinery.

Accordingly, to solve the conventional problems, the present invention is to provide a perpendicularity and parallelism inspection apparatus for performing the squareness and parallelism inspection for a pair of LM guide to adjust the squareness and parallelism within the error range. There is this.

In addition, the present invention by measuring and adjusting the perpendicularity and parallelism with respect to the reference plane at the corresponding position while moving at regular intervals, the perpendicularity and parallelism inspection apparatus that can minimize the error range of the overall perpendicularity and parallelism of the pair of LM guides There is another purpose to provide.

In addition, the present invention is to monitor the position to be coupled on the LM guide to reduce the hassle of having to measure again from the initial position to improve the work efficiency even if the position is changed in accordance with the external environment during the movement process. It is yet another object to provide an apparatus for inspecting perpendicularity and parallelism.

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

According to an aspect of the present invention for achieving the objects and other features of the present invention, a block fixing portion coupled to one of the blocks moving along the rail disposed in the longitudinal direction on top of each of the pair of bases; A moving support part coupled to the block fixing part and having a moving slit formed in a direction perpendicular to the rail; And a gauge measuring part fixed to a specific position of the moving slit and measuring a parallelism between a rail to which the block fixing part is coupled and a corresponding base or a rail facing each other.

In the present invention, the block fixing portion is formed with a plurality of coupling holes, the plate coupled to the upper portion of the block through the coupling member in at least one of the plurality of coupling holes; And a movement control member coupled to another one of the plurality of coupling holes to control movement of the block on the rail.

In the present invention, the movable support is formed in a rectangle so that the length can be adjusted according to the pair of base spacing, at least two or more movable slits for fixing the gauge measuring unit is formed according to the measurement of the perpendicularity or parallelism It is preferable to characterize.

In the present invention, the gauge measuring unit is fixed to the moving slit; An attachment member attached to the movable support by the fixing member; A dial gauge measuring contact angle or parallelism by contacting a corresponding base of a rail to which the block fixing part is coupled or a rail facing the rail to which the block fixing part is coupled; And at least one joint is formed, one end of which is connected to the attachment member and the other end of which is connected to the dial gauge.

In the present invention, it is preferable to further include a position measuring unit for measuring the position and angle of the gauge measuring unit to measure the change in position and angle according to the time or distance by measuring the position and the angle of the moving support.

The position measuring unit may include: a position measuring sensor measuring a reference position and a reference angle of the gauge measuring unit based on the moving support unit, and measuring a current position and a present angle of the gauge measuring unit at a predetermined time or a predetermined distance; And a state check terminal that checks whether the current position matches the current angle based on the reference position and the reference angle measured by the position measuring sensor.

Squareness and parallelism inspection apparatus according to the present invention provides the following effects.

The present invention has the effect of adjusting the squareness and parallelism within the error range by performing a squareness and parallelism check for a pair of LM guides.

The present invention has the effect of minimizing the error range of the overall perpendicularity and parallelism of the pair of LM guides by measuring and adjusting the squareness and parallelism with respect to the reference plane at the corresponding positions while moving at regular intervals.

The present invention is to monitor the position to be coupled on the LM guide, even if the position is changed in accordance with the external environment during the movement process to compensate for the existing position to reduce the need to measure again from the initial position, can improve the work efficiency It works.

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

1 is a perspective view showing a right angle and parallelism inspection apparatus according to the present invention.
Figure 2 is a view showing the parallelism measurement by installing the perpendicularity and parallelism inspection apparatus according to the present invention to a pair of LM guide.
3 is a view showing the measurement of the squareness by installing the squareness and parallelism inspection device according to the present invention in a pair of LM guide.
4 is a view showing that the position and angle measurement is performed while the perpendicularity and parallelism inspection device according to the present invention moves on a pair of LM guides.

Further objects, features and advantages of the present invention can be more clearly understood from the following detailed description and the accompanying drawings.

Prior to the detailed description of the present invention, the present invention may be variously modified and may have various embodiments, and the examples described below and illustrated in the drawings are intended to limit the present invention to specific embodiments. It is to be understood that the present invention includes all modifications, equivalents, and substitutes included in the spirit and technical scope of the present invention.

When a component is referred to as being "connected" or "connected" to another component, it may be directly connected to or connected to that other component, but it may be understood that other components may be present in between. Should be. On the other hand, when a component is said to be "directly connected" or "directly connected" to another component, it should be understood that there is no other component in between.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. Singular expressions include plural expressions unless the context clearly indicates otherwise. As used herein, the terms "comprise" or "have" are intended to indicate that there is a feature, number, step, action, component, part, or combination thereof described on the specification, and one or more other features. It is to be understood that the present invention does not exclude the possibility of the presence or the addition of numbers, steps, operations, components, components, or a combination thereof.

In addition, the terms "... unit", "... unit", "... module", and the like described in the specification mean a unit for processing at least one function or operation, which means hardware or software or hardware and It can be implemented in a combination of software.

In addition, in the description with reference to the accompanying drawings, the same components regardless of reference numerals will be given the same reference numerals and duplicate description thereof will be omitted. In the following description of the present invention, if it is determined that the detailed description of the related known technology may unnecessarily obscure the subject matter of the present invention, the detailed description thereof will be omitted.

Orthogonality and parallelism inspection apparatus according to a preferred embodiment of the present invention will be described in detail with reference to FIGS.

1 is a perspective view showing a squareness and parallelism inspection device according to the present invention, Figure 2 is a view showing the parallelism and parallelism inspection device to measure the parallelism by installing a pair of LM guide according to the present invention; 3 is a view showing the measurement of the perpendicularity by installing the perpendicularity and parallelism inspection apparatus according to the present invention in a pair of LM guide, Figure 4 is a pair of perpendicularity and parallelism inspection apparatus according to the present invention The figure shows that the position and angle measurement is made while moving on the LM guide.

As shown in Figs. 1 to 4, the perpendicularity and parallelism inspection apparatus 100 according to the present invention is generally installed on a commercially available LM guide and is provided with a pair of rails 20a, 20b) and the right angle between the base 10a or 10b supporting the LM guide and the rail 20a or 20b of the LM guide.

The LM guide is composed of the rails 20a and 20b and the block 30, and is coupled to an upper portion of each of the pair of bases 10a and 10b installed on the ground. Since the block 30 moves along the rails 20a and 20b, a person skilled in the art can easily conceive the detailed description thereof.

Orthogonality and parallelism inspection apparatus 100 according to the present invention is coupled to one of the blocks 30 to move along the rails (20a, 20b) arranged in the longitudinal direction on top of each of the pair of base (10a, 10b) The moving support part 120 and the moving slits 121 and 122 coupled to the block fixing part 110 and the block fixing part 110, wherein the moving slits 121 and 122 are formed in the vertical direction on the rails 20a and 20b. Is a gauge that measures the parallelism between the rails 20a or 20b to which the block fixing part 110 is coupled and the bases 10a or 10b or mutually opposite rails 20a and 20b fixed to a specific position It includes a measuring unit 130.

In addition, the perpendicularity and parallelism inspection apparatus 100 measures the position and angle of the gauge measuring unit 130 on the basis of the moving support 120 to change the position and angle of the gauge measuring unit 130 according to time or distance. It may further include a position measuring unit 140 for checking whether or not.

The block fixing part 110 may be coupled to an upper portion of the block 30 moving along the rails 20a and 20b, and may fix and support the moving support part 120. The block fixing part 110 may be formed of a plate 111 and a movement control member 112.

The plate 111 is formed of a plate having a T-shape, and a plurality of coupling holes 111-1 are formed through the coupling member 1 such as a bolt in at least one of the plurality of coupling holes 111-1. It may be coupled to the top of the block 30. The position of the plurality of coupling holes 111-1 for engaging the block 30 through the coupling member 1 may be changed according to the size of the block 111.

The plate 111 may be coupled to the movement control member 112 in another one of the coupling holes 111-1.

 The movement control member 112 may be coupled to the plate 111 in one of the plurality of coupling holes 111-1 to control the movement of the block 30 on the rails 20a or 20b. The movement control member 112 may include a bar having a predetermined length connected through the coupling member 1 in one of the plurality of coupling holes 111-1, and a handle coupled to one end of the bar.

In one embodiment, the movement control member 112 is formed to rotate at an angle back and forth from the plate 111 according to the external force, and by moving back and forth to move the block 30 on the rail (20a or 20b) or the rail It can be fixed at a specific position of 20a or 20b.

For example, the movement control member 112 may move the block 30 on the rails 20a or 20b when the handle is pulled forward by an external force, and the block 30 when the handle pulled forward by the external force is rolled back. Can be fixed at a specific position of the rail 20a or 20b. Herein, the movement control member 112 may be implemented in the form of a grip that catches and releases the rail 20a or 20b internally according to the forward and backward rotation, or may be implemented in a stopper form, such as the block 30 of the block 30. Any configuration that can control the movement can be adopted.

The moving support part 120 may be formed in a rectangle so as to be adjustable in length according to a pair of bases 10a and 10b. The moving support part 120 is formed to be adjustable in length at a specific position (for example, the middle of the moving support part 120) based on the block fixing part 110 according to a pair of bases 10a and 10b. It can be flexibly applied to the bases 10a and 10b of the size.

The moving support part 120 may be coupled to the block fixing part 110 through the coupling member 1 over the upper portion of the block fixing part 110 at one end thereof and may be connected to the gauge measuring part 130 at the other end thereof.

The moving support part 120 has moving slits 121 and 122 having a predetermined length in a vertical direction on the rails 20a and 20b, and moves to fix the gauge measuring part 130 according to the measurement of the perpendicularity or parallelism. At least two slits 121 and 122 may be formed.

That is, the movable support part 120 may be formed with moving slits 121 and 122 (refer to reference numerals for the moving slits formed on the lower surface and the rear surface thereof) on each of four surfaces due to the rectangular shape.

In one embodiment, the moving support 120 is formed in a cylinder, at least two or more moving slits 121 and 122 are formed, it may be formed to be adjustable in length in a telescope (Telescope) method.

The gauge measuring unit 130 may be fixed at specific positions of the moving slits 121 and 122 to measure perpendicularity and parallelism. The gauge measuring unit 130 may measure parallelism between the rails 20a and 20b facing each other at a predetermined interval when the gauge measuring unit 130 is fixed to the moving slit 121 formed on the upper or lower surface of the moving support 120 (FIG. 2), when fixed to the moving slit 122 formed on the front or rear (side) of the moving support 120, the rail 20a or 20b to which the block fixing unit 110 is coupled and the corresponding base 10a or 10b ) Can measure the squareness of the liver (see Figure 3).

The gauge measuring unit 130 has a perpendicularity and parallelism over the entire section of the LM guide according to the block 30 moving at regular intervals on the rails 20a or 20b by the movement control member 112 of the block fixing unit 110. Can be measured. In this case, the inspection of the degree of squareness may be performed first, and then the inspection of parallelism may be performed.

For this purpose, the gauge measuring unit 130 may include a fixing member 131, an attachment member 132, a dial gauge 133, and a connection member 134.

The fixing member 131 may be formed of a plate and may be fixed to the moving slits 121 and 122 of the moving support 120 through the coupling member 1. The fixing member 131 is movable along the corresponding moving slit 121 or 122 according to the coupling degree of the coupling member 1 (the tightening degree of the bolt), and the moving support part is moved by the coupling member 1 when the fixing position is determined. It can be completely fixed to 120.

The fixing member 131 may be fixed to the other moving slits 121 and 122 according to the perpendicularity measurement or the parallelism measurement, and when the parallelism is measured, the fixing member 131 is fixed to the moving slits 121 (see FIG. 2). When measuring, it may be fixed to the moving slit 122 (see FIG. 3).

The fixing member 131 may be formed of a magnetic magnetic material to attach the attachment member 132.

The attachment member 132 is formed of a magnetic magnetic material and is attached to the fixing member 131 or fixed to the fixing member 131 through the coupling member 1, and the moving support 120 by the fixing member 131. It may be provided at a specific position of.

In one embodiment, the attachment member 132 is implemented as a magnetic base that is formed so as to generate strong magnetism when attached to the fixing member 131 when formed as a magnetic, and to disappear when removed from the fixing member 131. Can be. The magnetic base can turn the magnetic force on and off by simple lever operation, and is a tool widely used as an auxiliary device for a machining or measuring tool.

The dial gauge 133 is a tool for accurately measuring the displacement of the contact end. The dial gauge 133 is connected to the attachment member 132 by the connecting member 134 and is in contact with the rails 20a and 20b or the base 10a and 10b. In the state, the displacement of the rails 20a and 20b or the bases 10a and 10b may be measured based on the reference rails 20a or 20b.

Referring to FIG. 2, the dial gauge 133 may measure parallelism with respect to the rail 20b opposite to the rail 20a to which the block fixing part 110 is coupled. The dial gauge 133 is in contact with the rail 20b facing the rail 20a to which the block fixing part 110 is coupled, and thus the rail at the position relative to the rail 20a to which the block fixing part 110 is coupled. The parallelism with respect to (20b) can be indicated by a disc scale.

Referring to FIG. 3, the dial gauge 133 may measure a squareness of the base 10a based on the rail 20a to which the block fixing unit 110 is coupled. The dial gauge 133 is in contact with the base 10a on which the rail 20a to which the block fixing part 110 is coupled is installed so that the dial gauge 133 is located at the position relative to the rail 20a to which the block fixing part 110 is coupled. The orthogonality with respect to the base 10a can be displayed by the disc scale.

The user performs the operation of tightening or releasing the fixing groove 21 formed on the rail 20a or 20b by referring to the disc scale measured and displayed by the dial gauge 133, thereby adjusting the position of the rail 20a or 20b. It can be adjusted precisely. The parallelism with respect to the rail 20b and the perpendicularity with respect to the base 10a can be correct | amended according to the position adjustment of the rail 20a or 20b performed by a user.

4 is moved after measuring the parallelism of the vicinity of the fixing groove 21-1 of the rail 20b through the perpendicularness and parallelism inspection device 100 according to the present invention is fixed groove 21- of the rail 20b 2) A diagram illustrating a process of measuring parallelism with respect to the neighborhood.

The connection member 134 may have at least one joint, one end of which may be connected to the attachment member 132, and the other end of which may be connected to the dial gauge 133. At least one joint may be angle-adjusted and the connection member 134 may change the position of the dial gauge 133 according to the adjustment of the joint.

The position measuring unit 140 may be connected to one end of the moving support 120, and measure the position and angle of the gauge measuring unit 130 based on the moving support 120. The position measuring unit 140 may check the position and angle of the gauge measuring unit 130 by checking the position and angle of the gauge measuring unit 130 according to time or distance.

That is, the position measuring unit 140 is a gauge measuring unit 130 based on the movement support 120 in the process of measuring the perpendicularity or parallelism of the entire section of the LM guide through the perpendicularity and parallelism inspection device 100 By checking whether the position has been moved to can maintain the initial reference position of the gauge measuring unit 130.

Accordingly, the position measuring unit 140 may minimize the hassle of measuring the squareness and parallelism from the beginning as the position of the gauge measuring unit 130 changes in the process of checking the perpendicularity and parallelism of the LM guide. Even if the position of the gauge measuring unit 130 is changed, the work efficiency may be improved by being able to correct the initial reference position again.

To this end, the position measuring unit 140 may include a position measuring sensor (not shown) and a state check terminal (not shown).

The position measuring sensor is installed at one end of the moving support 120, and at the first time of inspecting the perpendicularity or parallelism of the LM guide, the reference position sensor and the reference angle of the gauge measuring unit 130 are measured based on the moving support 120. It can be measured. For example, the position measuring sensor may be composed of each sensor, a position sensor, a gyro sensor, and the like.

The position measuring sensor may measure the current position and the present angle of the gauge measuring unit 130 at a predetermined time or at a predetermined distance after measuring the reference position and the reference angle.

The state check terminal may check whether the current position matches the current angle based on the reference position and the reference angle measured by the position measuring sensor at a predetermined time or at a predetermined distance. In one embodiment, the status check terminal may be attached to or detached from the position measurement sensor, or may be configured to be portable by a user.

The state check terminal may include a separate display screen for displaying whether the current position matches the current angle based on the reference position and the reference angle.

The embodiments and the accompanying drawings described herein are merely illustrative of some of the technical ideas included in the present invention. Therefore, since the embodiments disclosed herein are not intended to limit the technical spirit of the present invention, but to explain, it is obvious that the scope of the technical spirit of the present invention is not limited by these embodiments. Modifications and specific embodiments that can be easily inferred by those skilled in the art within the scope of the technical idea included in the specification and drawings of the present invention should be construed as being included in the scope of the present invention.

100: squareness and parallelism inspection device
110: block fixing part
120: moving support
130: gauge measurement unit
140: position measuring unit

Claims (6)

A block fixing part coupled to one of the blocks moving along a rail disposed in a longitudinal direction on top of each of the pair of bases;
A moving support part coupled to the block fixing part and having a moving slit formed in a direction perpendicular to the rail; And
A gauge measuring part fixed to a specific position of the moving slit, and measuring a parallelism between a rail to which the block fixing part is coupled and a corresponding base or a rail opposite to each other;
The moving support
It is formed in a rectangular shape so as to be adjustable in length according to the pair of base spacing, characterized in that at least two moving slits for fixing the gauge measuring unit is formed according to the measurement of the squareness or parallelism
Squareness and parallelism inspection device.
The method of claim 1,
The block fixing portion
A plate having a plurality of coupling holes formed therein and coupled to an upper portion of the block through a coupling member in at least one of the plurality of coupling holes; And
A movement control member coupled to another one of the plurality of coupling holes to control movement of the block on the rail;
Squareness and parallelism inspection device.
delete The method of claim 1,
The gauge measuring unit
A fixing member fixed to the moving slit;
An attachment member attached to the movable support by the fixing member;
A dial gauge measuring contact angle or parallelism by contacting a corresponding base of a rail to which the block fixing part is coupled or a rail facing the rail to which the block fixing part is coupled; And
At least one joint is formed, and one end is connected to the attachment member and the other end is connected to the dial gauge.
Squareness and parallelism inspection device.
The method of claim 1,
Further comprising a position measuring unit for measuring the position and angle of the gauge measuring unit based on the moving support to check whether the position and angle of the gauge measuring unit changes with time or distance.
Squareness and parallelism inspection device.
The method of claim 5,
The position measuring unit
A position measuring sensor measuring a reference position and a reference angle of the gauge measuring unit based on the moving support unit, and measuring a current position and a present angle of the gauge measuring unit at a predetermined time or a predetermined distance; And
Characterized in that it comprises a state check terminal for checking whether the current position and the current angle match based on the reference position and the reference angle measured by the position measuring sensor
Squareness and parallelism inspection device.

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