JP3079043B2 - Measuring device for end face shape and size of rod-shaped material - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for measuring the shape and size of an end face of a rod-shaped material.

[0002]

2. Description of the Related Art For example, when storing bar-shaped materials such as round steel, square steel, and flat steel in a warehouse or the like, the bar-shaped materials are sorted into shapes and sizes and stored in shelves. There is a case where the stock of the bar-shaped material is computer-managed by inputting the data to a computer.

[0003] The end face shape of the rod-shaped material managed in this manner includes round steel, square steel, flat steel, and the like as described above.
In addition, there are a wide variety of sizes, and as an example of an industrial standard product, there are about 29 round steel bars having a diameter ranging from 22 mm to 200 mm, and each side has a length of 22 mm to 1 mm.
There are about 15 square steels over a range of 60 mm and a thickness of 1
There are about 232 flat bars in the range of 3 mm to 150 mm x 32 mm to 310 mm in width.

[0004] In order to measure and manage the end face shape and size of such a huge number of rod-shaped materials, data on the end face shapes of all the rod-shaped materials are input to a computer, while the measuring device is used to input the data of the material to be measured. By providing a function of performing image processing of the end face shape, it is possible to appropriately manage the stock of the bar-shaped material by computer.

[0005]

However, in such a system, not only the equipment cost is extremely high, but also the complexity of inputting an enormous amount of shape data of the end face of the material into the computer is required. Is in a situation of being postponed.

[0006]

SUMMARY OF THE INVENTION In order to solve the above problems, the apparatus for measuring the shape and size of the end face of a rod-shaped material according to the present invention comprises a first and second rod-shaped material whose contact surfaces are orthogonal to each other. Jig, first and second dimension measuring devices for measuring dimensions up to the material contact surface when the surface to be contacted with the rod-shaped material comes into contact with the material, and supply to the first and second jigs Equipped with an end face shape measuring sensor that emits information that the end face shape of the formed material is square, so that the end face shape and size of a huge variety of rod-shaped materials can be mechanically measured, and Even if the stock of the material is managed by computer, the equipment cost can be greatly reduced.

[0007]

More specifically, in the apparatus for measuring the end face shape and size of a bar-shaped material according to the present invention, the material-contacting surfaces of the first and second jigs in which the contact surfaces of the rod-shaped material are orthogonal to each other. The rod-shaped material is sandwiched in two directions orthogonal to each other by the contacted surfaces of the first and second dimension measuring devices for measuring the dimension from the contact surface to the rod-shaped material to the material contact surface, thereby forming a rod-shaped material. It measures the height and width of the material.

[0008] Based on the height and width of the material,
When the sizes are the same, it is determined whether the shape of the end face of the material to be measured is square or circular. Alternatively, when the sizes of the height and the width are significantly different, it is determined that the end face shape of the measurement target material is rectangular.

In order to determine whether the shape of the end face of the material to be measured when the height and the width are the same is a square or a circle, based on the movement of the sensor member by the rod-like material, or An end face that issues information that the end face shape of the material supplied to the first and second jigs is a square rod material based on the amount of movement when the sensor member is moved until the sensor member contacts the rod-shaped material. A shape measurement sensor is provided.

Specifically, for example, an on / off type end face shape measuring sensor is disposed with its sensor member slightly protruding into the material contact surface side between the first and second jigs. Then, when the round bar material is supplied to the first and second jigs, the sensor member does not detect the material, and only when the square bar material is supplied to the first and second jigs. , The sensor member is driven by the supplied material to detect the material, whereby it is determined whether the end face shape of the material supplied to the first and second jigs is a square or a circle. .

Alternatively, a scale type end face shape measuring sensor similar to the material size measuring device is movably disposed so that its sensor member abuts on the material supplied to the first and second jigs. Therefore, based on the magnitude of the amount of movement of the sensor member when the sensor member contacts the rectangular or circular measurement target material, the end face shape of the material supplied to the first and second jigs is corrected. It is determined whether it is a square or a circle.

That is, by measuring the height and width of the material to be measured by a material size measuring device, and determining whether the shape of the end face of the material to be measured is square or circular by an end face shape measuring sensor. The measurement of the shape and size of the end face of the material to be measured is achieved mechanically and at once.

Here, a movable base is provided on one side of a carriage for carrying the rod-shaped material in a manner capable of being lifted and lowered and conveyed in the radial direction so as to be slidable in the axial direction of the rod-shaped material with respect to the fixed base.
Driving means for sliding the movable base between the non-measurement position and the measurement position is provided, while the movable base is provided with first and second jigs and a material size measuring device, respectively, and the fixed base is provided on the fixed base. When the end face shape measurement sensor is provided, the movable base is slid to the measurement position, and by lowering the material loading table of the cart,
One end of the material to be measured can be supplied to the first and second jigs.

As the above-mentioned driving means, an elevating member is provided on the fixed base, and a moving pulley is provided on the elevating member, and two fixed pulleys are provided on the fixed base so as to be rotatable around the axis in the material conveying direction. A wire having one end fixed to the fixed base is wound around the moving pulley and the two fixed pulleys in that order, and the movable base is fixed to the cable between the two fixed pulleys. An urging means for urging and returning the movable base to the non-measurement position is provided on the other end side of the cord-like body, and further, the material mounting table of the bogie is provided with the lowering of the mounting table. If the pressing means for pressing and lowering the elevating member is provided, the movable base can be slid to the measurement position in conjunction with the lowering of the material loading table, and the movable Base not measured by biasing means As it can be slid in location, it can constitute a driving means for sliding the movable base by utilizing the vertical movement of the material multiply the platform.

[0015]

Embodiments of the present invention will be described below with reference to the drawings. FIGS. 1 and 2 show the entirety of a storage and cutting and boxing system for rod-shaped materials A such as round steel, square steel, and flat steel.
A conveyor 1 that conveys the bar-shaped material A in the radial direction, a sorting cart 3 that feeds the bar-shaped material A from the conveyor 1 to the first stock unit 2, An end face shape and size measuring device 4 for measuring the end face shape and size of the bar-shaped material A, and the bar-shaped material A stocked in the first stock section 2 are sorted according to shape and size and stored in a predetermined shelf 5. And a crane 6 to be driven.

Further, a changer 9 for feeding the bar-shaped material A taken out of the storage shelf 6 by the crane 7 and supplying the material A to the conveyor 8, and an automatic control type and a manual control type for cutting the material A from the conveyor 8 into a predetermined length. And a device 11 for packing the cut material in a box.

As shown in FIGS. 3 and 4, the sorting cart 3 has a cart frame 14 reciprocally movable across a pair of rails 13 along the direction of material transport by the conveyor 1. A plurality of material mounting tables 15... Inclined toward the conveyor 1 side are provided at predetermined intervals in the axial direction of the rod-shaped material A. A material receiving post 16 is erected on the side of the conveyor 1 so as to be at a right angle to the material loading table 15. By scooping the bar-shaped material A between the mounting table 15 and the material receiving post 16, and moving the bogie frame 14 toward the first stock unit 2, the material mounting table 15 is lowered. Conveyor 1 The rod-shaped material A first stock portion 2
To be sent to.

A measuring device 4 for measuring the shape and size of the end face of the rod-shaped material A is disposed on one side in the middle of the conveying path of the sorting cart 3, and as shown in FIGS. A movable base 19 is provided so as to be slidable in the axial direction of the bar-shaped material A over a pair of rails 18, and as shown in FIGS. 7A and 7B, the movable base 19 is moved to a non-measurement position X and a measurement position Y. And the movable base 19
And an intermediate base 21 slidable in the radial direction of the rod-shaped material A, and a spring 22 for urging the intermediate base 21 toward the first stock portion 2.
And a stopper 23.

Then, the contact surfaces S1 and S2 of the rod-shaped material A are sorted and the material mounting table 15 of the distribution cart 3 and the material receiving post 16 are arranged.
The first and second jigs 24 and 25, which are in phase with
The intermediate base 2 through a balance air cylinder 26;
1 and a second material which is provided on a rectangular frame member 27 which can be moved up and down and slides contact surfaces S3 and S4 with respect to the bar-shaped material A in a direction orthogonal to the material contact surfaces S1 and S2, respectively. First and second material dimension measurement for measuring the dimensions up to the material contact surfaces S1 and S2 when the contact surfaces S3 and S4 contact the material A, specifically, the dimension measuring devices 28 and 29. Containers 28 and 29 are provided on the rectangular frame member 27. In this embodiment, "Monasaku (trademark)" of SMC is used as the first and second material dimension measuring devices 28 and 29.

According to the above configuration, the movable base 19
Slides to the measurement position Y, and in a state where the rod-shaped material A is supplied to the first and second jigs 24 and 25 provided on the movable base 19, the material contact of the first and second jigs 24 and 25 is performed. Contact surfaces S1, S2, and first and second material dimension measuring devices 28, 2
9 by the contact surfaces S3, S4
Are sandwiched in two directions orthogonal to each other, so that the rod-shaped material A
The height and width sizes are measured.

Then, based on the measured height and width of the material A, if the sizes are the same (or
In the case where the measurement sizes are substantially the same in consideration of the molding error and bending of the material A), it is determined whether the end face shape of the measurement target material A is square or circular. Alternatively, when the size of the height and the width are largely different, it is determined that the shape of the end face of the measurement target material A is rectangular.

In addition to the above-described structure, the end face of the rod-shaped material A supplied to the first and second jigs 24 and 25 has a square rod material A based on the movement of the sensor member 30 by the rod-shaped material A. End surface shape measurement sensor 3 that emits information that
1 is provided.

More specifically, for example, an on / off type end face shape measuring sensor 31 is passed through the sensor member 30 between the first and second jigs 24 and 25 to the material A contact surfaces S 1 and S 2. And is provided on the movable base 19 so that the first and second bases can be easily inserted.
When the round bar material A is supplied to the jigs 24 and 25, the sensor member 30 does not detect the material A and the first
Only when the square bar material A is supplied to the second jigs 24 and 25, the sensor member 30 is driven by the supplied material A, and it is determined whether the end face shape measuring sensor 31 detects the material A. Thus, it is determined whether the shape of the end face of the material A supplied to the first and second jigs 24 and 25 is a regular square or a circle.

In FIG. 5, LS in the figure detects that the square rod material A is supplied to the first and second jigs 24 and 25 and the sensor member 30 is driven by the supplied material A. It is a limit switch.

In summary, the height and width of the material A measured by the first and second material dimension measuring devices 28 and 29 are ≒, and the end face shape measuring sensor 31 does not detect the material A. In the case, the material A to be measured is a round bar material A
And the size of its diameter is measured.

Further, the first and second material dimension measuring devices 28,
The size of the height and width of the material A measured by 29 is ≒
When the end face shape measurement sensor 31 detects the material A, it is measured that the material A to be measured is a square rod material A having a square shape and the size of one side thereof. It is.

Then, the first and second material dimension measuring devices 2
When the height and the width of the material A measured by 8, 29 are remarkably different, and the end face shape measuring sensor 31 detects the material A, the material A to be measured is a rectangular square material A. And what the height and width sizes are.

The sliding of the movable base 19 between the non-measurement position X and the measurement position Y can be achieved by interlocking a drive means such as a motor or a fluid pressure cylinder with the movable base 19, for example. In the example,
The driving means 20 is configured as follows so that the movable base 19 is slid using the vertical movement of the material loading table 15 of the sorting cart 3.

That is, as shown in FIG. 6, a member 34 having a cam roller 33 rotatable about a horizontal axis 32 is provided so as to be able to move up and down with respect to the fixed base 17, and a moving pulley 35 And two fixed pulleys 36 and 37 are provided on the fixed base 17 so as to be rotatable around the axis in the material conveying direction, and one end of the fixed pulley 36
(A wire or a chain) fixed to the movable pulley 35 and two fixed pulleys 36 and 37 in that order, and the movable base 19 is fixed to the two fixed pulleys 36 and 37. It is fixed to the cord 38 in between.

An urging means (weight in this embodiment) 39 for urging and returning the movable base 19 to the non-measurement position X is provided on the other end side of the cord-like body 38, while the urging means 39 of the sorting truck 3 is provided. The material mounting table 15 has the mounting table 15
There is provided a pressing means (a cam follower for pressing and lowering the cam roller 33) 40 for pressing and lowering the elevating member 34 in accordance with the downward movement.

According to the above configuration, FIGS. 7A and 7B
As shown in the figure, the material loading table 15 of the sorting cart 3 is lifted at the transport end of the conveyor 1 to scoop up the bar-shaped material A,
After the distributing trolley 3 is advanced to the installation position of the measuring device 4 and then the distributing trolley 3 is slightly retreated and the material loading table 15 is lowered, the cam roller 33 provided on the elevating member 34 is The movable base 19 is pushed from the non-measurement position X to the measurement position Y against the urging force of the urging means 39 by the moving pulley 35 being lowered.
Will be slid. That is, one end side of the rod-shaped material A descending while retreating is relatively fixed to the first and second jigs 2.
The movable base 19 slides to the measurement position Y so as to be greeted at 4, 25.

On the other hand, the sorting cart 3 and thus the bar-shaped material A
After that, the operation of descending while retreating is continuously stopped, and during this time, the first and second jigs 24 and 25 are pushed by the rod-shaped material A, and the first and second jigs 24 and 25 are moved by the spring 22 and the air cylinder 26 for balance. Change your posture in opposition. That is, the spring 2
2 and the balance air cylinder 26 are not provided.
When the second jigs 24 and 25 are provided in a fixed position,
When the bar-shaped material A is supplied to the first and second jigs 24 and 25 in an oblique posture, an excessive force is applied to the jigs 24 and 25 or the bar-shaped material A is cured in a normal posture. Tools 24, 2
Even if it is supplied to the first jig 5, if the rod-shaped material A is bent, its posture may be lost, so the first and second jigs 24 and 25 are moved to the above-mentioned position. The posture is changed as follows.

As described above, the height and width of the rod-shaped material A relatively supplied to the first and second jigs 24 and 25 are measured by the above-described measuring device 4, and the end face shape is measured. After the measurement, the material loading table 15 is raised and advanced toward the first stock unit 2, and the material loading table 15 is lowered. It is sent to the section 2. On the other hand, the movable base 19 slides to the non-measurement position X by the urging force of the urging means 39 when the pressing of the pressing means 40 against the elevating member 34 is released as the material loading table 15 is raised. And prepare for the next material measurement.

Thereafter, the bar-shaped material A sent to the first stock unit 2 is sorted by shape and size by a crane 7 and stored in a predetermined shelf 6, and the measurement result is used as inventory management information. Entered into the computer. And, if necessary, the bar-shaped material A stored in the shelf 6
Is a band saw device 10 or 10A through a conveyor 8.
The material cut into a predetermined length is box-packed by the automatic box packing device 11.

In the above-described embodiment, a so-called on / off type sensor is selected as the end face shape measuring sensor 31. Instead, a scale type sensor similar to the material size measuring devices 28 and 29 is used. Using an end face shape measuring sensor, the sensor member is movably disposed so as to abut against the material supplied to the first and second jigs, and the sensor member is applied to a square or circular measurement target material. Based on the magnitude of the amount of movement of the sensor member upon contact, the first and second
You may make it determine whether the end surface shape of the raw material A supplied to the jigs 24 and 25 is a regular square or a circle.

Further, in this embodiment, the moving pulley 35 and the fixed pulley 36 are each doubled, and a cord 38 whose one end is fixed to the fixed base 17 is wound around the moving pulley 35 and the fixed pulley 36. Once again, the cord 38 is wound around the moving pulley 35 and the fixed pulley 36,
May be simply wound around the moving pulley 35 and the fixed pulley 36 only once.

[0037]

The present invention is embodied in the form described above, that is, by the material contact surfaces of the first and second jigs and the contact surfaces of the first and second dimension measuring devices. In addition to measuring the height and width of the bar-shaped material by sandwiching the bar-shaped material in two directions orthogonal to each other, the end face shape of the measurement target material when the height and width of the measurement target material are the same By measuring whether the material is a round bar material or a square bar material with a square shape using an end face shape measuring sensor, the end face shape and size of the material to be measured can be mechanically and at once achieved. Furthermore, even if a huge number of types of bar-shaped materials are classified by shape and size and their stock is managed by computer, the equipment cost can be greatly reduced.

[Brief description of the drawings]

FIG. 1 is a schematic side view of a storage and cutting and boxing system for rod-shaped materials.

FIG. 2 is a schematic plan view of a storage and cutting and boxing system for rod-shaped materials.

FIG. 3 is a plan view of a rod-shaped material receiving portion.

FIG. 4 is a side view of the distribution cart.

FIG. 5 is a detailed view of an end face shape and size measuring device of a rod-shaped material.

FIG. 6 is a side view of an end face shape and size measuring device of a rod-shaped material.

FIG. 7 (A) is an explanatory view of the arrangement of a measuring device, a distribution cart, and a rod-shaped material at a non-measurement position, and (B).
FIG. 4 is an explanatory view of the arrangement of the measuring device switched to the measuring position, the distribution cart, and the rod-shaped material.

[Explanation of symbols]

3 ... Dolly, 15 ... Material loading table, 17 ... Fixed base, 19
... Movable base, 20 ... Drive means, 24, 25 ... Jig, 2
8, 29: Material size measuring device, 30: Sensor member, 31
... end face shape measuring sensor, 34 ... elevating member, 35 ... moving pulley, 36, 37 ... fixed pulley, 38 ... cord-like body, 39 ... urging means, 40 ... pressing means, A ... rod-shaped material, S1, S2 ... material Contact surface, S3, 4 ... Contact surface, X ... Non-measurement position, Y ...
Measurement position.

────────────────────────────────────────────────── (5) References JP-A-58-161811 (JP, A) JP-A-63-163108 (JP, A) (58) Fields investigated (Int. Cl. ⁷ , DB name) G01B 21/00-21/32 B65G 1/00-1/20

Claims (3)

(57) [Claims] 1. A first and a second jig are arranged so that contact surfaces of a rod-shaped material are perpendicular to each other, and a contact surface for the rod-shaped material is slid in a direction perpendicular to the material contact surface. The first and second material dimension measuring devices for measuring the dimension up to the material contact surface when the contact surface comes into contact with the material are provided, and further, based on the movement of the sensor member by the rod-shaped material, Or, based on the amount of movement when the sensor member is moved until it comes into contact with the rod-shaped material, an end surface shape that issues information that the end surface shape of the material supplied to the first and second jigs is square. An apparatus for measuring the shape and size of an end face of a rod-shaped material, comprising a measurement sensor. 2. A movable base is provided on one side of a truck for vertically moving a bar-shaped material on which the bar-shaped material is mounted so as to be vertically slidable relative to a fixed base in an axial direction of the bar-shaped material. A drive means for sliding over a non-measurement position and a measurement position is provided, while the movable base is provided with first and second jigs and a material size measuring device, respectively, and the fixed base is provided with an end face shape measuring sensor. The apparatus for measuring the shape and size of an end face of a rod-shaped material according to claim 1, further comprising: 3. An elevating member is provided on the fixed base, and a moving pulley is provided on the elevating member, and two fixed pulleys are provided on the fixed base so as to be rotatable around an axis in a material conveying direction, and one end is fixed. A cord fixed to the base is wound around the moving pulley and the two fixed pulleys in that order, and the movable base is fixed to the cord between the two fixed pulleys, while the cord is fixed. On the other end side, there is provided an urging means for urging and returning the movable base to the non-measurement position, and further, the material loading table of the bogie has the lifting member as the loading table descends. 3. The apparatus for measuring the shape and size of an end face of a rod-shaped material according to claim 2, wherein a driving means for sliding the movable base between a non-measurement position and a measurement position is provided with a pressing means for pressing and lowering.