JPH07218209A - Device and method for inspecting shape of metal plate or the like - Google Patents

Abstract

PURPOSE:To achieve an upgrading of safety and measuring accuracy while achieving an expansion of an inspection area, a saving of labor and a speeding up by enabling inspection of the shape of a plate in both horizontal and vertical systems with one unit. CONSTITUTION:A surface plate 2 is provided rotatably around a horizontal shaft 7 and has a carrier surface 2A held horizontal and vertical in switching with the action of a rotary means 4. The surface plate 2 is provided with a grabbing means 5 on one surface selected as such for supporting from four circumferential surface the surface plate to allow the grabbing of the center of one side of a metal plate or the like 1 at one or two points.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a metal plate having a large size to a small size, a metal plate such as a test plate obtained by shearing at a predetermined position between the front end and the rear end of a metal strip. The present invention relates to an apparatus for inspecting a plate shape such as flatness, warp and twist (twist), and an inspection method that can be suitably implemented using this apparatus.

[0002]

2. Description of the Related Art Metal plates and metal strips made of stainless steel, other alloy steels, metals such as aluminum and titanium and having a large size to a small size have various standards including JIS standards and quality standards required by customers. It is supplied for a wide variety of applications while satisfying.

The metal plate and the metal strip supplied in this way are
When manufacturing products of the quality required by consumers, the following items must be thoroughly inspected, quality controlled, and quality compensated for stable supply.

The respective items are, for example, chemical composition (chemical component), mechanical properties, surface finish, dimensional accuracy,
As internal quality, structure and inclusions and various defects (structural test, inclusion test, microscope test, ultrasonic flaw detection and other non-destructive tests, etc.), and as surface quality, the presence or absence of various flaws, their distribution state and distribution amount, surface cleanliness In addition to various characteristics such as corrosion resistance, high temperature oxidation resistance, and magnetic permeability, which are mainly caused by the chemical composition (chemical composition), flatness and plate shape such as plate warp and twist are fried.

In recent years, a very good plate shape has been strictly required for such a metal plate or a metal strip,
For example, stainless steel plates and steel strips from large sizes to small sizes are strictly required for the following material products.

Specifically, various lead frames, shadow masks for large-screen televisions, center cores for floppy disks, shutter materials, magnetic heads for tape recorders, etching materials for fluorescent display tubes such as ID saw blades and calculators, etc. High-tech materials that are collectively referred to, vehicle materials that collectively refer to vehicle outer panels for electric trains, building materials that collectively include decorative steel sheets for interiors, and various spring materials that collectively refer to spring materials for linear motor cars. .

The plate shape of such a metal plate or metal strip is subjected to heat treatment (including cooling) such as melting, refining, casting, agglomeration, hot rolling and annealing, cold rolling, temper rolling, and shape correction ( (Tension leveling, etc.), shearing, cutting (slitting), etc., and process history including various manufacturing conditions in each process, various equipment characteristics in this shearing and cutting process, and various shearing and cutting conditions etc. It is affected and changes variously.

[0008] This plate shape is problematic enough to be mentioned in the inspection items, such as curling (curling) that occurs when wound on a coil, extension of the edge of the ear (stretching of the ear), extension of the central portion (middle extension), and the like. Combined state, plate warp (L warp: warp in the longitudinal direction of the coil (rolling direction), C warp: warp in the coil width direction (direction perpendicular to the rolling)), trough (canoeing), twist (twist) and so on.

Conventionally, such a metal plate or a metal strip having a plate shape is a test plate obtained by shearing (cutting in the width direction) at a predetermined position from the front end to the rear end of the metal plate, etc. The board shape was checked by inspecting against. FIG. 19 schematically shows a shearing mode of the metal plate or the like. FIG. 19A shows a shear plate (cut plate) 1A as a test plate.
When the metal strip is obtained by performing side trimming T on both sides (ears) by a trimming device in a strip and then shearing at each shearing position C1 to C4, a width of 600 to 1580 mm and a length of A rectangular shear plate (cutting plate) 1A having a diagonal line of 500 to 4000 mm and a thickness of 0.2 to 9.0 mm is obtained. FIG. 19 (B) shows a case where a strip plate 1B is obtained as a test plate. After performing side trimming T on a metal strip through a strip, a slitter further cuts it into a minimum width of 16 to 18 mm (longitudinal cutting, slitting). ) S and shearing at each of the shearing positions C1 and C2 gives a length of 500 to 4000 having a width of a predetermined dimension.
A strip-shaped rectangular plate 1B having a thickness of 0.2 mm and a thickness of 0.2 to 9.0 mm, which is shown by oblique lines, is obtained. In these metal plates and the like, in the following description, the end faces in the longitudinal direction formed by cutting will be referred to as left and right side faces, and the end faces in the width direction formed by shearing will be referred to as front and rear end faces.

20 and 21 schematically show a conventional plate shape inspection method for a metal plate or the like. As shown in FIG. 20,
Conventionally, a continuous shearing equipment line for metal strips, a slitter equipment line or a tension leveler equipment line, a shearing machine (equipment) for metal plates (single sheet), or a continuous processing equipment line for metal strips, or in the latter half of the line. Behind the shears to be placed and close to the line, the floor (foundation)
A shear plate (cutting plate) 1A such as a metal plate continuously flowing into the line is manually (usually 2
The name and the large size are carried by many people), and they are placed and inspected for the plate shape.

That is, a ruler, a convex rule, a caliper, a crevice (crevice) is provided at a position (a) where there is a gap on the side of a shear plate (cutting plate) 1A such as a metal plate mounted on the surface plate 2. A gauge and a depth of field meter were set to measure the plate shape.

On the other hand, in the case of the strip plate 1B only, as shown in FIG. 21, a person grasps and holds the upper end face of the strip plate 1B against the vertical surface of the plate 4 fixed vertically to the support column 3. The plate shape was measured in the same manner as in the case of the surface plate 2 by holding it up along the surface.

[0013]

As described above, there are two types of plate shape inspection methods: a normal (general) method for inspecting the shape by placing it on a flat surface plate and a hanging shape test method. There are different ways, but both methods have their own characteristics and both are important. However, such an inspection method has the following drawbacks.

(1) It is inconvenient because work efficiency is poor due to direct manual work such as carrying and hanging, which is unsafe and inefficient, and there is a problem in productivity. is there.

(2) Since the work must be done manually, the products to be inspected are limited to those having a relatively small size and light weight. Even if it is light, if it is thin and has a large size, it cannot be manually operated because of the influence of its own weight and deformation due to change. Naturally, a large and heavy object is deformed, and manual work is impossible.

In particular, in the hanging shape test method, the target plate is limited to a strip plate having a short length, and a large size plate cannot be used as the target plate regardless of weight or plate thickness. The plate shape inspection was impossible.

(3) In any case, the conventional method could not establish the inspection method, the inspection measurement accuracy was poor, and the reliability was low.

The present invention has been made to solve the problems of the conventional inspection method.
The object of the present invention is to enable both horizontal and vertical plate shape inspection by one device, and it is applicable to both large and small dimensions to expand the inspection range, and also to perform inspection by remote control. It is an object of the present invention to provide a shape inspection device and an inspection method for a metal plate or the like, which can save labor and speed up by performing the above, and can improve safety and measurement accuracy.

[0019]

DISCLOSURE OF THE INVENTION The present invention provides a flat metal plate such as a metal strip, a metal test plate obtained by shearing at a required position between the front end and the rear end of a metal plate, and a metal plate such as a metal product. A device for inspecting a plate shape such as a degree, a warp, a twist, etc., and a surface plate rotatably provided around a horizontal axis, and a mounting surface when the surface plate is rotated around the horizontal axis. A rotation means for holding the surface horizontally and vertically, and one surface selected as a supporting surface from four front and rear end surfaces parallel to the horizontal axis of the surface plate and left and right side surfaces orthogonal to the horizontal axis. And a gripping means capable of gripping the central portion of one side corresponding to the supporting surface of the metal plate or the like along the mounting surface at a maximum of two places, the shape of the metal plate or the like. It is an inspection device.

According to the present invention, the horizontal axis is provided along either one of the front and rear end surfaces of the surface plate, and the gripping means is provided on the opposite end surface portion thereof. This is preferable from the viewpoint of effectively using the mounting surface and increasing the change in the position of the gripping means during rotation.

According to the present invention, the surface plate may be installed in the processing line such that the mounting surface in the horizontal position is almost level with the flat surface of the metal plate or the like. It is preferable because the product inspection can be performed quickly.

According to the present invention, the surface plate is a horizontal surface plate on which a metal plate or the like is placed on a mounting surface in a horizontal holding state.
It is preferable that the metal plate or the like be held by the holding means in the vertically held state so that it can be used as a vertical surface plate that is vertically suspended along the mounting surface, from the viewpoint of prompting the shape inspection.

According to the present invention, the platen further has a cutout portion on the supporting surface on which the gripping means is provided for allowing the gripping portions, which are provided at most two places, to move up and down with respect to the riding surface. And a stopper member for positioning the edge of the corresponding one side of the metal plate or the like along the mounting surface along the side of the supporting surface excluding the notch. However, by lowering the gripping means below the horizontal mounting surface and performing a horizontal mounting type shape inspection effectively using the surface of the surface plate, the metal plate etc. is shifted horizontally and the gripping means is cut out. It is preferable in that the metal plate or the like is horizontally shifted and gripped while being raised from the portion and positioned by the stopper.

According to the present invention, the rotating means includes a linear motion type drive device attached to a pedestal, a central portion of the arm body is rotatably supported by the horizontal shaft, and one end portion of which is a surface plate. It is ensured that the surface plate is horizontal and vertical by being fixed to either one of both end surfaces and including an arm member whose other end is rotatably connected to the output shaft of the drive device. It is preferable in that it can be held at.

According to the present invention, the gripping means includes an integrated gripping part capable of simultaneously gripping two points and a driving part for positioning the gripping part, and the gripping part is different from the mounting surface of the surface plate. Inside the pair of outer cylinders, a first-stage movable beam member that is provided to face the opposite surface, a pair of outer cylinders that are connected to both ends of the movable beam member with their cylinder axes parallel to each other, and A pair of gripping upper claws fixed to one end on the same side of each of the sliding rods, and a pair of gripping lower claws fixed to the ends of the pair of outer cylinders facing the pair of gripping upper claws, respectively, The pair of rods that slide inside the pair of outer cylinders are connected to the other ends on the same side, and the second stage movable beam member is provided in parallel with the first stage movable beam member. The drive section for positioning the section is arranged so as to include the grip section,
The U-shaped member, whose upper part is opened and fixed to the mounting surface, is provided between the first-stage movable beam member and the second-stage movable beam member, and both movable It is provided between the pneumatic cylinder for moving the beam members closer to and away from each other, and the movable beam member of the second stage and the base portion of the U-shaped member parallel to the movable beam member. It is composed of a screw jack that moves closer to and away from the base, and an electric motor that is fixed to a U-shaped member to drive the screw jack, and a protrusion provided on both ends of the first-stage movable beam member on the inner surface of the U-shaped member. Is provided with a groove for sliding and guiding the gripping part by the pneumatic cylinder, and the gripping part is moved up and down with the screw jack as a boundary. How to vertically hang a metal plate etc. by holding the part Preferable in terms that can easily adjust the distance between the platen multiplication Nomen in.

The present invention also provides that the platen is provided adjacent to this metal line processing equipment line or further behind the shearing machine arranged in the latter half of the line. However, it is preferable in that it is easy to perform the shape inspection of the product and return it as a product at the end of the inspection, and it does not hinder the operation of the line.

The present invention is also provided with a conveying means for reversibly conveying a metal plate or the like in a metal strip processing equipment line from the line to the surface plate and vice versa. It is preferable in terms of automation and prevention of deformation during handling of the inspection object.

The present invention also provides a surface plate which is rotatably provided around a horizontal axis, and a rotating plate which rotates the surface plate around the horizontal axis to hold the loading surface horizontally and vertically. Moving means and a supporting surface selected from one of the front and rear end surfaces parallel to the horizontal axis of the surface plate, and one side corresponding to the supporting surface such as a metal plate along the mounting surface. Using a shape inspection device for a metal plate or the like, which includes a gripping means capable of gripping the central portion at two positions at most, the metal plate or the like is mounted on a mounting surface of a surface plate which is held horizontally. Check the value of the relative gap between the peripheral edge of the metal plate etc. and the mounting surface of the surface plate.
After holding the metal plate or the like mounted on the mounting surface of the platen held horizontally by the gripping means in the central portion of one side corresponding to the supporting surface, the platen is rotated to vertically. The value of the relative gap between the peripheral edge of the metal plate and the mounting surface of the surface plate, while holding and vertically suspending the metal plate or the like so that there is a predetermined clearance with respect to the mounting surface. Is a method for inspecting the shape of a metal plate or the like.

Further, according to the present invention, when the surface plate is held vertically, the metal plate or the like is prevented from bending due to its own weight at one or two places in the central portion of one side corresponding to the supporting surface. Gripping by the gripping means is preferable from the viewpoint of accurate shape inspection. The length of the side to be gripped is long, and when one side is bent and both sides are bent, two sides are gripped.

[0030]

According to the present invention, the turn table provided rotatably, the turning means for holding the turn table horizontally and vertically, and the metal plate attached to the turn table along the mounting surface. The shape inspection device is configured to include a gripping means capable of gripping the central part of one side such as two at most. This apparatus can be used for both a horizontal mounting method using a surface plate and a vertical suspension method using a gripping means and a rotating means. In addition, it is possible to specify inspection conditions and methods by determining the orientation, hanging position, and distance from the surface plate mounting surface based on the properties such as the size and weight of metal plates such as metal test plates and metal products. In addition, all metal plates and the like can be inspected regardless of properties such as thin products, large sizes, small sizes, and heavy objects. Since the grip is held at only two places at most, the restraint of the metal plate or the like due to the grip can be minimized.

Further, according to the present invention, since the horizontal axis and the gripping means are provided on both front and rear end surfaces of the surface plate, a person can directly perform a vertical suspension type inspection at a maximum height. It is possible to perform transportation for inspection, suspension such as suspension by remote operation or automatic operation without touching a plate or the like.

Further, according to the present invention, the surface plate can be held horizontally and vertically by a horizontal shaft provided along one end face of the front and rear end faces, and is grasped by the end face portion opposite to the one end face. By providing a means for gripping a metal plate or the like, and further, by providing the surface plate so that the loading surface in the horizontal position is almost at the same height as the plate passing plane of the metal plate or the like, a metal strip processing equipment line It can be installed in a line such as, and can perform product inspection such as sampling inspection regardless of the operation of the line, and after the inspection, it can be returned to the original line as a metal product.

Further, according to the present invention, the plate is swiftly mounted on the mounting surface in the horizontal state only when the sampling inspection is performed, and is gripped by the gripping means along the mounting surface in the vertical state. The shape can be inspected, and when the inspection is not performed, the operation of the line can be smoothly continued without lowering the gripping means by lowering the gripping means below the horizontal mounting surface.

[0034]

1 is a side view showing a horizontal holding state in which a part of a shape inspection apparatus for a metal plate or the like according to an embodiment of the present invention is omitted, and FIG. 2 is a side view showing the vertical holding state. is there. 3 is a side view of the gripping means 5 of the shape inspection device shown in FIGS. 1 and 2, and FIG. 4 is a sectional side view showing the outline of the structure of the gripping means 5 shown in FIG. The shape inspection apparatus according to this embodiment includes a surface plate 2, a rotating unit 4, and a holding unit 5. The surface plate 2 is formed of a thick rectangular plate made of metal such as steel, and the loading surface 2A, which is an upper surface when horizontal, has a smooth mirror surface finish to maintain the flatness. The surface plate 2 includes a front end surface 6A and a rear end surface 6 that are orthogonal to each other on the upper and lower sides with respect to a direction in which a metal plate 1 such as a test plate obtained by shearing from a metal band is loaded.
B, a left side surface 6C on the other side of FIG. 1 which is parallel to the sheet passing direction, and a right side surface 6D on the front side of FIG.
The arm member 8 is fixed near the rear end surface 6B on the lower surface opposite to the riding surface 2A, which is provided around A, and the rear end surface 6B is formed as a supporting surface.

The rotating means 4 includes the arm member 8 fixed to the surface plate 2 and the linear motion type drive device 9 realized by an air cylinder attached to the pedestal 11, and the arm member 8 is at the center. Part is rotatably supported by a horizontal shaft 7, and the other end opposite to one end fixed to the surface plate 2 is an air cylinder 9.
Is rotatably connected to the end of the rod. Air cylinder 9
The head side end of the cylinder body is rotatably supported by the gantry 11 via the support member 12. On the other hand, the horizontal axis 7
Is horizontally supported by a pedestal 11 via a bearing member 10 and is held in parallel with a rear end surface 6B which is a surface for supporting the surface plate 2. Rotating means 4 configured in this way
1 as the rod of the air cylinder 9 extends.
1, the surface plate 2 is rotated in the counterclockwise direction around the horizontal axis 7 in FIG. 1 to hold the mounting surface 2A of the surface plate 2 horizontally in the fully extended state. On the contrary, as shown in FIG. 2 due to the contraction of the rod, the surface plate 2 is rotated clockwise about the horizontal axis 7 in FIG. Work to hold. If the shape of the arm member 8 is determined according to the expansion and contraction state of the air cylinder 9, the surface plate 2 can be surely removed.
Can be rotated.

On the other hand, the gripping means 5 is of a one-point support type and is provided with a gripping part 13 and a driving part 14 for positioning the gripping part 13, and a rear end surface which is a supporting surface of the surface plate 2. It is provided on the front end face 6A side opposite to 6B. Grip 1
Reference numeral 3 denotes a gripping upper claw 15 in the form of a strip, which is brought into contact with one side of the metal plate 1 or the like 1 mounted on the mounting surface 2A in the horizontal state from above.
In the same manner, the gripping lower claw 16 in the form of a small strip piece is similarly made to contact the one side from below. A rubber piece as a cushioning material is fixed to the gripping surface of each of the claws 15 and 16. The drive unit 14 includes a jack base 17 fixed to the lower surface of the surface plate 2 near the front end surface 6A, a screw jack 18 attached to the jack base 17, and a screw rod 19 of the jack 18 mounted directly on the mounting surface 2A. A motor 20 that gives a moving movement toward and away from each other in an intersecting state,
It is formed by an air cylinder 21 coaxially connected to the screw jack 18. By driving the motor 20, the drive unit 14 can vertically move the screw rod 19 and the air cylinder 21 integrally in the vertical direction at a position close to the front end surface 6A of the surface plate 2 in the horizontal direction, Also,
By operating the air cylinder 21, the rod can be vertically moved independently in the vertical direction. And the gripping upper claw 15
Is fixed to the rod end of the air cylinder 21, while
The gripping lower claw 16 is fixed to an end of the cylinder body of the air cylinder 21 on the rod protruding side,
16 are held in parallel with the mounting surface 2A and are arranged so as to face each other vertically. A notch 22 is provided in the center of the front end face 6A of the surface plate 2 in relation to the both pawls 15 and 16, and the surface plate 2 is moved when the pawls 15 and 16 move vertically. It is formed so that it can pass through the notch 22 and move smoothly without abutting.

5 to 8 show modes of the gripping operation of the shape inspection apparatus shown in FIG. With reference to FIGS. 1 to 8, when the shape inspection is performed with the surface plate 2 held horizontally, the air cylinder 21 moves the rod backward, and the screw jack 18 moves the screw rod 19 downward. Let As a result, the two pawls 15 and 16 pass through the cutout portion 22 in a state where they are close to each other, and as shown in FIG. Is dented. Therefore, when the metal plate 1 or the like 1 mounted on the mounting surface 2A is horizontally moved, the gripping means 5 does not become an obstacle, and the metal plate 1 or the like can be placed at a predetermined position on the mounting surface 2A. Is. At this time, it is possible to effectively use the riding surface 2A including the portion where the cutout portion 22 is formed.

On the other hand, when performing the shape inspection with the surface plate 2 held vertically, the screw jack 18 is
9, the air cylinder 21 moves the rod forward as necessary, and as shown in FIG. 6, the upper gripping jaw 15 holds the gap d4 with respect to the riding surface 2A, and the lower gripping jaw 16 Causes the grip portion 13 to be positioned with respect to the lower surface of the surface plate 2 so as to hold the gap d3. When a part of the metal plate 1 or the like is also mounted on the cutout portion 22, the metal plate 1 or the like is temporarily shifted slightly horizontally to open the vicinity of the cutout portion 22. In this state, it is possible to insert the metal plate 1 or the like between the gripping upper claw 15 and the riding surface 2A without contact.

Next, the screw jack 18 moves the screw rod 19 upward a little, and the air cylinder 21 also moves the rod forward a little, so that the gripping surface of the gripping lower claw 16 is placed on the riding surface 2A as shown in FIG. By a dimension d5 above the claws 15 and 16 so that a sufficient gap can be maintained between the claws 15 and 16 for easily inserting the metal plate 1 without contact.
After positioning 3, the metal plate 1 or the like, which is horizontally held and conveyed by the conveying means (not shown), is transferred onto the mounting surface 2A, and the rear end thereof is inserted between the pawls 15 and 16.

Subsequently, in the screw jack 18, the screw rod 19 is slightly moved upward to move the gripping lower pawl 16 to the metal plate 1 or the like.
Then, the air cylinder 21 moves the rod backward so that the gripping upper pawl 15 is pressed against the metal plate 1 or the like, and as shown in FIG.
The metal plate 1 is reliably gripped in a horizontal state in which a gap d2 is held between it and the mounting surface 2A even when the carrier is released from being held by the grip portion 13.

When the grasping of the metal plate 1 or the like is completed in this way, the rotating means 4 rotates the surface plate 2 around the horizontal shaft 7 so that the grasping portion 13 is located above, and holds it vertically. The metal plate 1 or the like is grasped by the grasping portion 13 of the grasping means 5 and suspended vertically. Therefore, by examining the gap d2 between the mounting surface 2A in the vertical state and the metal plate 1 or the like over the entire circumference, it is possible to perform a shape inspection that is not affected by its own weight. Further, since the position of the grip portion 13 is high when the surface plate 2 is in the vertical posture, the shape inspection of the long metal plate 1 or the like is possible.

FIG. 9 is a front view of a shape inspection apparatus for a metal plate or the like which is another embodiment of the present invention, and FIGS. 10 and 11 are a plan view and a right side view corresponding to FIG. 9 to 1
The other embodiment shown in FIG. 1 is similar to the one embodiment shown in FIG. 1, and corresponding parts are denoted by the same reference numerals. What should be noted in this other embodiment is that the gripping means 5 is formed to have a two-point support structure, whereas the gripping means 5 has a one-point support structure in the one embodiment. It should be noted that FIG. 11 shows a safety fence 1 provided in case the metal plate 1 or the like 1 comes off from the grip 13 during the shape inspection by the vertical suspension system.
1a is also shown. Since the surface plate 2 and the rotating means 4 are formed to have substantially the same structure, the gripping means 5 will be described below with reference to FIGS. 12 to 14.

FIG. 12 is an enlarged front view of the gripping means 5 shown in FIG. 9, and FIG. 13 is a right side view of the same.
4 is a plan view taken along the line XX in FIG. The gripping means 5 is provided with a gripping part 13 capable of simultaneously gripping two places and a drive part 14 for positioning the gripping part 13, and the metal plate 1 or the like having a large side width to be gripped is not bent by its own weight. Can be gripped, front end surface 6A of surface plate 2
It is provided on the side. The grip portion 13 has a first-stage movable beam member 24 provided below the lower surface on the side opposite to the mounting surface 2A, and the cylindrical axes of the movable beam member 24 are parallel to each other at the left and right ends of the movable beam member 24. And a pair of outer cylinders 26, 26 connected to the beam member 24 so as to be orthogonal to each other, and the pair of outer cylinders 26, 26.
26, a pair of rods 27 and 27 slidably fitted and inserted therein, a pair of gripping upper claws 15 and 15 fixed to the upper ends of the pair of rods 27 and 27, and a pair of gripping uppers thereof. A pair of outer cylinders 2 facing the claws 15 and 15
The pair of gripping lower claws 16 and 16 fixed to the upper ends of the rods 6 and 26 and the lower end portions of the pair of rods 27 and 27 are connected to each other to connect the lower end portions to the movable beam member 24 of the first stage. It is composed of a movable beam member 25 of a second stage provided in parallel. The gripping portion 13 configured as described above is provided with a driving portion 14 described later.
It is attached to the U-shaped member 28 which is a component member of the above, and is provided so as to be movable in the vertical direction.

On the other hand, the driving portion 14 is arranged so as to include the grip portion 13 and has a U-shaped member 28 whose upper portion is opened and fixed to the lower surface of the surface plate 2, and the first stage movable. A pair of pneumatic cylinders 29, 29 provided between the beam member 24 and the second-stage movable beam member 25, a second-stage movable beam member 25, and a U-shape arranged in parallel therewith. The screw jack 18 provided between the base 28A of the member 28 and
And a motor 20 mounted on the base portion 28A for driving the screw jack. The U-shaped member 28 is
A rail member 30 is fixed to a pair of vertical beam portions 28B, 28B extending vertically from both ends of the base portion 28A,
A groove is vertically provided on the inner surface of the rail member 30.

In the drive unit 14 thus constructed, a pair of pneumatic cylinders 29, 29, for example, fix the cylinder body to the movable beam member 24 of the first stage and the rod end portion of the movable beam member of the second stage. While being fixed to 25, the upper end portion of the screw rod 19 of the screw jack 18 attached to the base portion 28A is connected to the movable beam member 25 of the second stage.

On the other hand, in the grip portion 13, projections 31 are fixed to both ends of the movable beam member 24 of the first stage so as to project to the left and right sides, and the projections 31 slide in the grooves of the rail member 30. Attached to U-shaped member 28 for possible engagement.

In the gripping means 5 constructed in this manner, the pair of gripping upper claws 15 and 15 and the pair of gripping lower claws 16 and 16 are attached to the front end surface of the surface plate 2 on the front end surface 6A side. The upper and lower claws 15 and 15 approach and separate from each other by gripping the upper and lower claws 15 and 15 close to and away from each other by synchronously expanding and contracting a pair of pneumatic cylinders 29 and 29, which are vertically opposed to each other in the central portion of 6A. On the other hand, when the screw jack 18 is moved up and down, the entire grip 13 moves up and down integrally, and the upper claws 15 and 15 and the lower claws 16 and 16 are raised with the riding surface 2A as a boundary. It can be lowered or lowered. The surface plate 2 is provided with a notch portion 22 at a predetermined position on the front end face 6A in order to smoothly move the grip portion 13, and this configuration is the same as that of the one embodiment. A stopper member 23 formed of, for example, a band plate is fixed to the surface plate 2 along a side portion of the front end surface 6A, which is a supporting surface, excluding the cutout portion 22, and the mounting surface 2A Also, the contact surface protruding upward enables the edge of the metal plate 1 or the like to be mounted to be positioned.

The gripping means 5 constructed in this way can simultaneously grip two places integrally, and this gripping operation is the same as the operation mode based on FIGS. 5 to 8 in the case of the one embodiment. Since it is the same, the description is omitted.

FIG. 15 shows a system diagram of a metal strip processing equipment line in which the other embodiment shown in FIG. 9 is provided. Based on the passing direction of 1 such as metal plate such as metal band,
A cutting / shearing device C such as a slitter, a first conveyor D, a paper inserting device E, a marking device F, a second conveyor G, and a pillar H are installed from the upper and lower sides. It goes without saying that various modifications of these devices and arrangements are carried out depending on the type of processing. In such an equipment line, the shape inspection apparatus A according to the other embodiment of the present invention is conveyed to a required place such as in the equipment line or further behind the shearing machine, for example, close to both sides of the second conveyor G. Means B are installed side by side. The shape inspection device A is provided so that the mounting surface 2A in the horizontal state is at substantially the same level as the plane of the line passing plate. When, for example, a sampling inspection is required for a metal plate or the like 1 such as a test plate sent to the second conveyor G, the metal plate or the like 1 is gripped, lifted or tilted by the transporting means B. While being transported across the second conveyor G, and transported to the surface plate 2 of the shape inspection apparatus A, it is lowered or anti-tilted, and the grip is released to mount it on the mounting surface 2A. Shape inspection device A
On the side, the mounted metal plate 1 or the like is gripped by the gripping means 5, and the turning means 4 is operated as necessary to perform a plate shape inspection in a horizontal or vertical state. This inspection can be performed under remote control or automatic control by using a depth of focus meter, for example.

When the plate inspection is completed, the platen 2 is returned to the original horizontal posture and the grip is released, and then the conveying means B is operated to move the metal plate 1 or the like 1 on the mounting surface 2A onto the second conveyor G. Then, a series of board inspection is completed.

16 and 17, the conveying means B shown in FIG. 15 is shown in front and plan views. The transporting means B includes a gantry 32, a dolly 33 that is guided by the gantry 32 to move forward and backward, and a gripping device 34 provided on the dolly 33. The gantry 32 has a pair of upper and lower rails 35, 35 provided in parallel and horizontally along both front and rear ends of the upper surface. Before and after this, a pair of upper and lower rails 3
The carriage 33 is provided so that it can be moved forward and backward in the horizontal direction by being guided by 5, 35. The gripping device 34 includes a horizontal support shaft 36 that is horizontally rotatably supported by a front end portion of the carriage 33 and is orthogonal to the forward and backward directions, and one end portion of the horizontal support shaft 36 is fitted to the forward and backward movement. A pair of arms 37, 37 provided so as to be vertically swingable within a vertical plane of the direction, and a flat plate 40 mounted over the other ends of the pair of arms 37, 37,
A hydraulic cylinder 38 for rotating the horizontal support shaft 36, and a plurality of gripping hydraulic cylinders 39 which are mounted so as to penetrate the flat plate 40 at right angles and whose rods are oriented vertically downward.
39 and suction pads 41, 41 attached to the rod ends of these hydraulic cylinders 39, 39. In addition,
In order to move the carriage 33 forward and backward, the hydraulic cylinder 42
Is provided.

The operation of gripping and carrying the carrying means B is as described below. The hydraulic cylinder 42 is rod-extended to move the carriage 33 forward from the standby position.
When 41 and 41 reach the width center position O1 of the second conveyor G, the carriage 33 is stopped and the hydraulic cylinders 39 and 39 for gripping are held.
Is extended and the metal plate or the like 1 on the second conveyor G is suction-held by the suction pads 41, 41. Then, by shortening the rods of the hydraulic cylinders 39, 39 while shortening the rods of the hydraulic cylinders 39, 39, the metal plate or the like 1 that is suction-held can be tilted upward. In this tilted state, the carriage 33 is further moved forward, and the hydraulic cylinder 38 is rod-extended to return the metal plate 1 or the like to the horizontal state, and the suction pads 41, 41 are aligned with the center position O2 of the surface plate 2. Move the truck 33 forward,
After the stop, the hydraulic cylinders 39, 39 are rod-extended, and the rod extension is stopped at a position where the metal plate 1 or the like is mounted on the mounting surface 2A or a slight gap is maintained. The suction operation of the suction pads 41, 41 is released in response to the end of the gripping operation by the gripping means 5 on the shape inspection device A side, and the suction pads 41, 41 are pulled up from the metal plate 1 or the like by shortening the rod of the hydraulic cylinder 39. , The carriage 33 is retracted by shortening the rod of the hydraulic cylinder 42 and returned to the initial standby position, thus completing a series of conveyance operations.

The suction pads 41, 41 may be of a vacuum pressure system or an electromagnet magnetic force system.

FIG. 18 shows still another embodiment of the present invention. The same reference numerals are attached to the portions corresponding to the above-described embodiments. In each of the above-described embodiments, the notch 22 is provided on the supporting surface side of the surface plate 2, but in this embodiment, the grip 1
3 is separated from the front end surface 6A that is a supporting surface, and can be moved up and down without providing a notch.

The position at which the gripping means 5 is provided does not necessarily have to be the central portion of the supporting surface. Wide metal plate 1
Although the central part is preferable when suspending, it may be preferable to be close to one side in order to measure the clearance from the side surface to the surface plate.

[0056]

As described above, according to the present invention, it is possible to perform inspection by both the horizontal mounting and the vertical suspension by one shape inspection device, which can save labor and speed up. The inspection method is established. In addition, it is possible to specify the optimal inspection conditions and inspection methods based on various conditions such as the orientation of the metal plate, the hanging position and the number of support points, the distance from the upper surface of the surface plate, and the size and weight of the metal plate. Therefore, there is no variation in the inspection measurement, the measurement accuracy is improved, the inspection accuracy is high and good, and the reliability is improved.

Further, according to the present invention, it is possible to make all objects to be inspected regardless of the size and weight of the metal plate such as thin object, large size and high weight, and a person directly touches the object to be inspected. Without remote control or automatic operation, processing such as transportation and suspension can be performed. Therefore, significant improvements in safety and workability are expected. Further, the processing time required for the shape inspection is shortened, and the efficiency and productivity are increased.

Further, according to the present invention, since the sampling inspection can be performed and the original line can be restored after the inspection is completed, the inspection can be performed without affecting the operation of the line. Furthermore, even if it is absolutely necessary in terms of quality standards and manufacturing specifications, inspection correspondence processing can be performed, and for example, a defective plate-shaped metal strip that must not be sheared or cut can be inspected immediately and quickly. Since it is possible, it does not need to be cut, and in terms of quality control, it is possible to meet the quality standards and manufacturing specifications and to supply stably. In addition, quality improvement and low-cost manufacturing can be realized without reducing the manufacturing yield.

[Brief description of drawings]

FIG. 1 is a side view showing a horizontal holding state in which a part of an embodiment of the present invention is omitted.

FIG. 2 is a side view showing a vertically held state of the embodiment shown in FIG.

FIG. 3 is a side view of a gripping means 5 of the embodiment shown in FIG.

4 is a sectional side view schematically showing the structure of the gripping means 5 shown in FIG.

5 is an explanatory diagram showing a first stage operation of the gripping operation of the embodiment shown in FIG. 1. FIG.

FIG. 6 is an explanatory view showing a second stage operation of the gripping operation of the embodiment shown in FIG.

FIG. 7 is an explanatory diagram showing a third stage operation of the gripping operation of the embodiment shown in FIG.

8 is an explanatory view showing a fourth stage operation of the gripping operation of the embodiment shown in FIG. 1. FIG.

FIG. 9 is a front view of another embodiment of the present invention.

FIG. 10 is a plan view of the embodiment shown in FIG.

FIG. 11 is a right side view of the embodiment shown in FIG.

FIG. 12 is an enlarged plan view showing the grip means 5 shown in FIG. 9;

13 is a right side view of the gripping means 5 shown in FIG.

FIG. 14 is a plan view taken along the line XX in FIG.

FIG. 15 is a system diagram showing a block diagram of a metal strip processing equipment line provided with an embodiment according to the present invention.

16 is a front view of the conveying means B shown in FIG.

17 is a plan view of the conveyance means B shown in FIG.

FIG. 18 is a schematic sectional side view showing still another embodiment of the present invention.

FIG. 19 is an explanatory diagram showing a shearing mode of the metal plate or the like 1.

FIG. 20 is a conceptual diagram of a conventional plate shape inspection method.

FIG. 21 is a conceptual diagram of another example of the conventional plate shape inspection method.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Metal plate etc. 2 Surface plate 2A Mounting surface 4 Rotating means 5 Gripping means 6A Front end surface 6B Rear end surface 7 Horizontal shaft 8 Arm member 9,21 Air cylinder 11 Frame 13 Gripping part 14 Driving part 15 Gripping upper claw 16 Gripping bottom Claw 18 Screw jack 19 Screw rod 20 Motor 22 Notch 23 Stopper member 24 First stage movable beam member 25 Second stage movable beam member 26 Outer cylinder 27 Rod 28 C-shaped member 28A Base 29 Pneumatic cylinder 30 Rail member 31 Protrusion A Shape inspection device B Conveying means

Claims (11)

[Claims] 1. A metal strip, a metal test plate obtained by shearing at a required position from a front end portion to a rear end portion of a metal plate, a flatness, a warp and a twist in a metal plate such as a metal product. An apparatus for inspecting a plate shape, which is provided with a surface plate rotatably provided around a horizontal axis, and by rotating the surface plate around the horizontal axis to hold a mounting surface horizontally and vertically. The rotating means and the front and rear end surfaces parallel to the horizontal axis of the surface plate and the left and right side surfaces orthogonal to the horizontal axis are provided on one surface selected as a supporting surface and along the riding surface. A shape inspection device for a metal plate or the like, comprising: a gripping means capable of gripping a central portion of one side corresponding to the supporting surface of the metal plate or the like at a maximum of two places. 2. The metal according to claim 1, wherein the horizontal axis is provided along one of the front and rear end surfaces of the surface plate, and the gripping means is provided on the opposite end surface portion. Shape inspection device for plates, etc. 3. The metal plate or the like according to claim 1 or 2, wherein the surface plate is provided so that the mounting surface in the horizontal state has substantially the same height as the plane of the passing plate of the metal plate or the like. Shape inspection device. 4. The surface plate is a horizontal surface plate on which a metal plate or the like is placed on a mounting surface in a horizontal holding state. The shape inspection device for a metal plate or the like according to claim 1, wherein the shape inspection device can be used as a vertical surface plate that is vertically suspended. 5. The surface plate has a cutout portion on the supporting surface on which the gripping means is provided, the gripping portion being provided at most at two positions for moving up and down with a riding surface as a boundary. It has a stopper member for positioning the edge part of the corresponding one side of the said metal plate etc. along the mounting surface along the side part except the notch part in the said support surface. A shape inspection device for a metal plate or the like according to 1, 2, or 3. 6. The rotating means includes a linear motion type drive device attached to a gantry, a central portion of an arm body portion rotatably supported by the horizontal shaft, and one end portion of the both end surfaces of a surface plate. The arm member fixed to any one of the end faces and having the other end rotatably connected to the output shaft of the drive device, The arm member according to claim 1, 2, 3, 4, or 5. Shape inspection device for metal plates, etc. 7. The gripping means includes an integrated gripping part capable of simultaneously gripping two points and a drive part for positioning the gripping part, and the gripping part is provided on the side opposite to the mounting surface of the surface plate. A first stage movable beam member provided to face the surface, and a pair of outer cylinders connected to both ends of the movable beam member with their cylinder axes parallel to each other,
A pair of gripping upper claws fixed to one end on the same side of the rods sliding in the pair of outer cylinders, and a pair fixed to the end portions of the pair of outer cylinders facing the pair of gripping upper claws, respectively. Second movable beam member provided parallel to the first movable beam member by connecting the gripping lower claw and the other ends on the same side of the pair of rods that slide inside the pair of outer cylinders, respectively. And a drive section for positioning the grip section, the drive section being arranged so as to include the grip section, and a U-shaped member whose upper part is opened and fixed to the mounting surface on the surface plate, A pneumatic cylinder provided between the first-stage movable beam member and the second-stage movable beam member to move the movable beam members toward and away from each other, and a second-stage movable beam member and a cylinder parallel thereto. It is provided between the base part of the U-shaped member to bring the movable beam member of the second stage and the base part of the U-shaped member close to and away from each other. It consists of a screw jack and an electric motor that is fixed to the U-shaped member to drive the screw jack. The inner surface of the U-shaped member slides and guides the protrusions provided at both ends of the first-stage movable beam member. A groove is provided for holding and releasing the gripping portion by the pneumatic cylinder, and the gripping portion is moved up and down with the screw jack as a boundary. The shape inspection device for a metal plate or the like according to 4, 5, or 6. 8. The surface plate is provided adjacent to the metal strip processing equipment line, or further behind the shearing machine arranged in the latter half of the line, adjacent to this line. A shape inspection device for a metal plate or the like according to 1, 2, 3, 4, 5, 6 or 7. 9. The metal plate according to claim 8, further comprising a conveying means for reversibly conveying a metal plate or the like in a metal strip processing equipment line from the line to the surface plate and vice versa. Shape inspection device for etc. 10. A surface plate rotatably provided around a horizontal axis, and a rotating means for rotating the surface plate around the horizontal axis to hold the mounting surface horizontally and vertically. , A central portion of one side corresponding to the supporting surface such as a metal plate which is provided on a supporting surface selected from one of the front and rear end surfaces parallel to the horizontal axis of the surface plate, and which extends along the mounting surface. Using a shape inspection device for a metal plate or the like including a gripping means capable of gripping at most two places, the metal plate or the like is mounted on a mounting surface of a surface plate held horizontally, and the metal plate or the like is mounted. The value of the relative gap between the peripheral edge of the surface plate and the mounting surface of the surface plate is checked, while the metal plate mounted on the mounting surface of the surface plate that is held horizontally corresponds to the supporting surface. After being gripped by the gripping means at the center of one side, the surface plate is rotated and held vertically, and the metal plate etc. A metal plate or the like characterized by suspending vertically so that there is a predetermined gap with respect to the mounting surface, and examining the value of the relative gap between the peripheral edge of this metal plate and the mounting surface of the surface plate. Shape inspection method. 11. When the surface plate is held vertically, a metal plate or the like is placed at the center of one side corresponding to the supporting surface.
In order to prevent bending due to its own weight at one or two points,
The shape inspection method for a metal plate or the like according to claim 10, wherein the shape is grasped by the grasping means.