JP2021000639A - Device for correcting curve of irregularly-shaped long-sized workpiece and method of manufacturing linear long-sized workpiece - Google Patents

Abstract

To provide a device for correcting curve of an irregularly long-sized workpiece and to provide a method of manufacturing a linear long-sized workpiece.SOLUTION: A device for correcting curve of an irregularly-shaped long-sized workpiece which properly supports the curved irregularly-shaped long-sized workpiece 70 and appropriately presses the workpiece with a pressing part 1 from an appropriate direction intersecting with a length direction of the irregularly-shaped long-sized workpiece 70 has a body 2 to be fitted which is freely detachably provided on a portion 70a to be pressed of the irregularly shaped long-sized workpiece 70 which is pressed by the pressing part 1, an inner circumferential surface of the body 2 to be fitted has a shape conforming to an outer surface shape of the portion 70a to be pressed and, further, a prescribed portion of the outer circumferential surface of the body 2 to be fitted is preset on a surface 2a to be pressed which is pressed by the pressing part 1.SELECTED DRAWING: Figure 1

Description

The present invention relates to a bending straightening device for a deformed long work and a method for manufacturing a linear long work.

Conventionally, as a device for linearly straightening a bent metal long work, for example, a bending straightening device for a long work disclosed in Japanese Patent Application Laid-Open No. 2018-130731 (hereinafter referred to as a conventional example) has been proposed.

In this conventional example, the long work is provided from the left and right work support portions that support the long work in an erected state and the direction (vertical direction) that intersects the length direction of the long work provided above the long work. The long work is supported by the work support portion in an erected state so that the bending direction of the long work faces upward, and the pressed portion of the long work is pressed in this state. The bent long work can be straightened by pressing with the portion to deform the long work in the direction opposite to the bending direction.

JP-A-2018-130731

By the way, in the conventional example, when the cross-sectional shape of the pressed portion 70a in the long work 70 is not a perfect circle but a deformed cross section as shown in FIG. 25, the pressed portion 70a is pressed by the pressing portion 60. However, there is a problem that this pressing force does not act in the vertical direction and the accuracy of correction is low.

The present invention provides an epoch-making bending correction device for a deformed long work and a method for manufacturing a linear long work, which solves the above-mentioned problems.

The gist of the present invention will be described with reference to the accompanying drawings.

The deformed long work 70 that is bent is appropriately supported, and the deformed long work 70 is properly pressed by the pressing portion 1 from the proper direction that intersects with the length direction of the deformed long work 70 to correct the bending of the deformed long work in a straight line. The device has an inlaid body 2 that is detachably provided on a pressed portion 70a of the deformed long work 70 that is pressed by the pressing portion 1, and the inner peripheral surface of the inlaid body 2 is the covered body. It has a shape that matches the outer surface shape of the pressing portion 70a, and a predetermined portion of the outer peripheral surface of the inlaid body 2 is set to the pressed surface 2a to be pressed by the pressing portion 1. It relates to a bending correction device for a shaku work.

Further, the bending straightening device for a deformed long work according to claim 1, wherein the bending straightening device for a deformed long work has a rotating portion 6 for axially rotating the deformed long work 70. ..

Further, in the bending straightening device for the deformed long work according to any one of claims 1 and 2, the deformed long work is characterized by having a measuring unit 7 for measuring the degree of bending of the deformed long work 70. It is related to the bending correction device of.

Further, in the bending straightening device for a deformed long work according to any one of claims 1 to 3, the pressing surface 1a of the pressing portion 1 has an inverted V-shape in a vertical cross section or an inverted U-shape in a vertical cross section. The pressed surface 2a relates to a bending straightening device for a deformed long work, which is characterized by being an arc surface.

Further, in the bending straightening device for the deformed long work according to any one of claims 1 to 4, a predetermined clearance is provided between the inner peripheral surface of the inlaid body 2 and the outer peripheral surface of the deformed long work 70. The present invention relates to a bending straightening device for a deformed long work, which is characterized in that.

Further, in the bending straightening device for the deformed long work according to any one of claims 1 to 5, the inlaid body 2 is composed of a plurality of divided bodies 2A and 2B, and sandwiches the deformed long work 70. The present invention relates to a bending straightening device for a deformed long work, which is configured to be fitted on the deformed long work 70.

Further, in the bending straightening device for a deformed long work according to claim 6, each of the divided body holding portions 3 and 4 for holding the divided bodies 2A and 2B is provided, and the divided body holding portions 3 and 4 are each divided. The present invention relates to a bending straightening device for a deformed long work, characterized in that the bodies 2A and 2B are movably provided from a position where the bodies 2A and 2B are in a bonded state to a position where the divided bodies 2A and 2B are in a separated state. is there.

Further, in the bending straightening device for a deformed long work according to any one of claims 6 and 7, the divided bodies 2A and 2B are configured to be detachably joined to each other via a joining structure. The joining structure relates to a bending straightening device for a deformed long work, characterized in that the other split body 2B is sandwiched and joined by a sandwiching member 13 provided to be openable and closable on one split body 2A. It is a thing.

Further, in the bending straightening device for the deformed long work according to claim 8, the joint structure becomes a joint state when the holding state by the split body holding portions 3 and 4 is released, and the split body holding portion 3 and 3 are released. The present invention relates to a bending straightening device for a deformed long work, which is configured so that the joined state is released by being brought into a holding state by 4.

In addition, a bent deformed long work 70 is appropriately supported, and the deformed long work 70 is properly pressed by the pressing portion 1 from an appropriate direction intersecting with the length direction of the deformed long work 70 to correct it into a straight line. It is a method of manufacturing a linear long work to be a long work, in which the deformed long work 70 is arranged and supported at a predetermined position, and the following fitting body is applied to the pressed portion 70a of the deformed long work 70. 2 is provided, and the deformed long work 70 is appropriately axially rotated to appropriately press the outer peripheral surface of the inlaid body 2 with the pressing portion 1 from the proper direction. It concerns the method.
Note: The deformed long work 70 is detachably provided, the inner peripheral surface has a shape that matches the outer surface shape of the deformed long work 70, and a predetermined portion of the outer peripheral surface is pressed by the pressing portion 1. An inlaid body set on the pressing surface 2a.

In addition, a bent deformed long work 70 is appropriately supported, and the deformed long work 70 is properly pressed by the pressing portion 1 from an appropriate direction intersecting with the length direction of the deformed long work 70 to correct it into a straight line. This is a method for manufacturing a linear long work to be a long work, in which the deformed long work 70 is arranged and supported at a predetermined position, the deformed long work 70 is appropriately rotated by an axis, and then the deformed length is formed. The following fitting body 2 is provided on the pressed portion 70a of the scale work 70, and the outer peripheral surface of the fitting body 2 is appropriately pressed by the pressing portion 1 from the proper direction. It relates to the manufacturing method of.
Note: The deformed long work 70 is detachably provided, the inner peripheral surface has a shape that matches the outer surface shape of the deformed long work 70, and a predetermined portion of the outer peripheral surface is pressed by the pressing portion 1. An inlaid body set on the pressing surface 2a.

Further, in the method for manufacturing a linear long workpiece according to any one of claims 10 and 11, the pressing surface 1a of the pressing portion 1 has an inverted V-shape in vertical cross section or an inverted U-shape in vertical cross section. The pressed surface 2a relates to an arc surface, which relates to a method for manufacturing a linear long workpiece.

Further, in the method for manufacturing a linear long work according to any one of claims 10 to 12, a predetermined clearance is provided between the inner peripheral surface of the inlaid body 2 and the outer peripheral surface of the deformed long work 70. The present invention relates to a method for manufacturing a linear long work, which is characterized in that.

Further, in the method for manufacturing a linear long work according to any one of claims 10 to 13, the inlaid body 2 is composed of a plurality of divided bodies 2A and 2B, and sandwiches the deformed long work 70. The present invention relates to a method for manufacturing a linear long work, which is configured to be fitted on the deformed long work 70.

Further, in the method for manufacturing a linear long work according to claim 14, the divided body holding portions 3 and 4 for holding the divided bodies 2A and 2B are provided, and the divided body holding portions 3 and 4 are each divided. It relates to a method for manufacturing a linear long work, characterized in that the bodies 2A and 2B are movably provided from a position where the bodies 2A and 2B are in a bonded state to a position where the divided bodies 2A and 2B are in a separated state. is there.

Further, in the method for manufacturing a linear long work according to any one of claims 14 and 15, the divided bodies 2A and 2B are configured to be detachably joined to each other via a joining structure. The joining structure relates to a method for manufacturing a linear long work, characterized in that the other split body 2B is sandwiched and joined by a sandwiching member 13 provided to be openable and closable on one split body 2A. It is a thing.

Further, in the method for manufacturing a linear long work according to claim 16, the joint structure is brought into a joint state with each other when the holding state by the divided body holding portions 3 and 4 is released, and the divided body holding portion 3 The present invention relates to a method for manufacturing a linear long workpiece, which is configured so that the joined state is released by being brought into the holding state by each of the above and 4.

Since the present invention is configured as described above, it is possible to perform high-precision straightening even on a deformed long work, which is an epoch-making bending correction device for a deformed long work and a linear long work. It becomes a manufacturing method.

It is a perspective view which shows this Example. It is a perspective view which shows the main part of this Example. It is a front view which shows this Example. It is a top view which shows this Example. It is operation explanatory sectional drawing of the main part of this Example. It is operation explanatory sectional drawing of the main part of this Example. It is operation explanatory drawing of the main part of this Example. It is operation explanatory drawing of the main part of this Example. It is a usage state explanatory drawing of this Example. It is a usage state explanatory drawing of this Example. It is a usage state explanatory drawing of this Example. It is a usage state explanatory drawing of this Example. It is a usage state explanatory drawing of this Example. It is a usage state explanatory drawing of this Example. It is a usage state explanatory drawing of this Example. It is the schematic explanatory drawing of the bending correction of a deformed long work 70 using this Example. It is a usage state explanatory drawing of this Example. It is a usage state explanatory drawing of this Example. It is a usage state explanatory drawing of this Example. It is a usage state explanatory drawing of this Example. It is a usage state explanatory drawing of this Example. It is a usage state explanatory drawing of this Example. It is the schematic explanatory drawing of the bending correction of a deformed long work 70 using another example. It is a perspective view which shows the deformed long work 70. It is a usage state explanatory drawing of the conventional example.

An embodiment of the present invention that is considered to be suitable will be briefly described by showing the operation of the present invention based on the drawings.

An inlaid body 2 is provided on the pressed portion 70a of the deformed long work 70, and the pressed surface 2a (outer peripheral surface) of the inlaid body 2 is pressed from an appropriate direction intersecting the length direction of the deformed long work 70. When properly pressed by the portion 1, the bent irregular long work 70 is corrected. At this time, the deformed long work 70 is appropriately rotated according to the degree of bending of the deformed long work 70, and the pressing force by the pressing portion 1 is appropriately controlled.

The inner peripheral surface of the inlaid body 2 has a shape that matches the outer surface shape of the pressed portion 70a, and the pressing force by the pressing portion 1 does not act in an improper direction as in the conventional example described above, and is desired. Since it acts in the direction, the deformed long work 70 is well straightened. That is, since the deformed long work 70 is pressed through the fitted body 2, the deformed long work 70 can be corrected with high accuracy regardless of the shape of the pressed portion 70a.

Specific examples of the present invention will be described with reference to the drawings.

In this embodiment, a bent deformed long work 70 is appropriately supported, and the deformed long work 70 is properly pressed by the pressing portion 1 from an appropriate direction intersecting with the length direction of the deformed long work 70 to correct the deformed length in a straight line. It is a bending correction device for a shaku work, and has an inlaid body 2 detachably provided on a pressed portion 70a of the deformed long work 70 pressed by the pressing portion 1, and is included in the inlaid body 2. The peripheral surface has a shape that matches the outer surface shape of the pressed portion 70a, and a predetermined portion of the outer peripheral surface of the inlaid body 2 is set to the pressed surface 2a pressed by the pressing portion 1.

In this embodiment, the deformed long work 70 is a fuel supply pipe (work that has been forged before cutting) having various convex portions on the peripheral surface as shown in FIG. 24, and the central portion is covered. It is the pressing portion 70a. In this embodiment, it is of course possible to correct the bending of, for example, a round bar work that is not the deformed long work 70.

Hereinafter, each component of the present embodiment will be described in detail.

As shown in FIGS. 1 and 3, the pressing portion 1 is provided at a predetermined position above the apparatus main body (not shown) and at an upwardly opposed position of the support portion 5 for supporting the deformed long work 70 described later. The pressing surface 1a abutting on the outer peripheral surface (pressed surface 2a) which is the arc surface of the fitted body 2 has an inverted V-shape in vertical cross section (or an inverted U-shape in vertical cross section) and has a symmetrical tapered surface. It is provided in the shape. The pressing surface 1a is formed into an inverted V-shape in a vertical cross section (or an inverted U-shape in a vertical cross section) because when the deformed long work 70 is pressed, the deformed long work 70 has the length of the deformed long work 70. This is to prevent the movement in a direction orthogonal to the direction.

Further, the pressing portion 1 is arranged in a direction (orthogonal direction) intersecting the length direction of the deformed long work 70 supported by the bearing portion 5, and further, the pressing portion 1 is operated by raising and lowering a cylinder (not shown). It is provided so that it can be raised and lowered.

Further, the deformed long work 70 (fitted body 2) whose axial center (the bisector of the angle formed by the left and right contact surfaces 1a') of the pressing portion 1 (pressing surface 1a) is supported by the bearing portion 5 described later. ) Is provided in a positional relationship that coincides with the axis.

Therefore, the pressing portion 1 can be pressed with the pressing surface 1a (left and right contact surfaces 1a') stably in contact with the pressed surface 2a of the fitted body 2.

As shown in FIG. 1, the support portion 5 is configured by erection of support columns 5A and 5B at upper left and right positions of the main body of the apparatus, and recesses 5a provided at the upper ends of the support columns 5A and 5B, respectively. , 5b, both ends of the deformed long work 70 are placed in a locked state, and the deformed long work 70 is supported in a horizontally erected state.

The number of bearings 1 can be changed as appropriate.

Further, a rotating portion 6 for rotating the deformed long work 70 is provided at a lateral position of the bearing portion 5.

As shown in FIG. 1, the rotating portion 6 is configured by providing a chuck portion 6b at the tip of a rotating body 6a that rotates by an appropriate drive source, and the chuck portion 6b is supported by a bearing portion 5. It is provided so as to sandwich one end of the deformed long work 70.

Therefore, the rotating portion 6 can axially rotate the deformed long work 70 by rotating the rotating body 6a with the deformed long work 70 sandwiched between the chuck portions 6b.

The amount of rotation of the rotating unit 6 is controlled by a control unit (not shown).

Further, a measuring unit 7 for measuring the degree of bending of the deformed long work 70 is provided between the support members 5A and 5B of the bearing portion 5.

As shown in FIGS. 1 and 3, the measuring unit 7 is a telescopic measuring rod-shaped member having a dial gauge function of three on each side (six in total) at the upper position of the elevating body 8 provided on the main body of the apparatus. It is configured by providing 7a.

The distance between the three measuring rod-shaped members 7a provided on one side is about 100 to 120 cm.

Each of the measuring rod-shaped members 7a extends from a lower position to the deformed long work 70 supported by the support portion 5 until the tip abuts, and measures the distance to the deformed long work 70 without bending. The difference from the deformed long work 70 (master bar) is measured, and the degree of bending of the deformed long work 70 to be measured is measured by this difference in distance.

The figure below of each measuring rod-shaped member 7a can be changed as appropriate.

Further, the elevating body 8 is provided with an inlaid body support portion 9.

As shown in FIGS. 1 and 3, the fitted body support portion 9 is provided so as to be vertically opposed to the lower center position of the elevating body 8 at the upper center position of the elevating body 8 and to correct the deformed long work 70. After the work is completed, it is configured to come into contact with the lower part of the fitted body 2 and lift the fitted body 2 to a position where it can be reliably captured by the divided body holding portions 3 and 4.

Further, the elevating body 8 is provided with a positioning portion 10 for preventing the shaft rotation of the deformed long work 70 supported by the support portion 5.

As shown in FIG. 8, the positioning portion 10 is provided on one side of the upper part of the elevating body 8 so as to be able to move up and down in the vicinity of the support column member 5B of the support portion 5, and has a modified shape supported by the support portion 5. It is configured to come into contact with the long work 70 and prevent the deformed long work 70 from trying to rotate about its axis due to its own weight.

Further, the positioning portion 10 is lowered after the fitting body 2 is completely attached to the deformed long work 70 to release the rotation blocking state of the deformed long work 70.

Further, the elevating body 8 is provided with divided body holding portions 3 and 4 for holding each of the divided bodies 2A and 2B constituting the fitted body 2 described later.

Specifically, each of the divided body holding portions 3 and 4 is configured by providing holding bodies 3a and 4a that open and close and move at the tip portions of the moving portions 11 and 12 described later as shown in FIGS. ..

A plurality of axial portions 3b and 4b are provided on the inner surface portions of the respective sandwiching bodies 3a and 4a, and when the respective sandwiching bodies 3a and 4a are closed and moved, one axial portion 3b and 4b will be described later. The other axial portions 3b and 4b exert a function of abutting and holding the side surfaces of the divided bodies 2A and 2B while exhibiting a function of penetrating and holding the divided bodies 2A and 2B through the holding holes 2b. The divided bodies 2A and 2B are held by the divided body holding units 3 and 4.

Further, when the divided body holding portions 3 and 4 open and move the sandwiched bodies 3a and 4a from the state where the divided bodies 2A and 2B are held, one axial portion 3b and 4b becomes the divided bodies 2A, The function of pulling out of the holding hole 2b of 2B and holding the other axial portions 3b and 4b is released, and the function of holding the other axial portions 3b and 4b away from the side surfaces of the divided bodies 2A and 2B is released. , 4 is released from holding in each of the divided bodies 2A and 2B.

Further, the sandwiching body 3a of one of the split body holding portions 3 is provided with a pushing portion 3c that pushes the slide shaft portion 15 of the split body 2A when it is closed and moved.

As will be described later, the slide shaft portion 15 of the split body 2A functions to release the joint between the split bodies 2A and 2B by a pushing operation, and therefore, the split body holding portions 3 and 4 are respectively. Holds the divided bodies 2A and 2B, so that the joining of the divided bodies 2A and 2B is released.

Further, as shown in FIG. 3, the divided body holding portions 3 and 4 are movably provided from a position where the divided bodies 2A and 2B are in a bonded state to a position where the divided bodies 2A and 2B are in a separated state. Has been done.

Specifically, the moving portions 11 and 12 are provided at the upper predetermined positions of the elevating body 8 so as to move in the front-rear direction with each other, and the divided body holding portions 3 and 4 are provided in the moving portions 11 and 12. Has been done.

Therefore, the divided body holding portions 3 and 4 move in contact with each other to open and close the holding bodies 3a and 4a, so that the divided bodies 2A and 2B can be brought into a joined state or a separated state. it can.

The fitted body 2 is composed of a plurality of divided bodies 2A and 2B, and is configured to sandwich the deformed long work 70 and be fitted to the deformed long work 70.

Specifically, the divided bodies 2A and 2B constituting the inlaid body 2 are semicircular bodies formed of appropriate metal members as shown in FIGS. 2 and 3, and the divided bodies are formed. When the inner peripheral surfaces of 2A and 2A are overlapped with each other to form the inlaid body 2, the outer shape becomes a disk-shaped body having a perfect circle.

Further, on the inner peripheral surface of each of the divided bodies 2A and 2B that overlap each other, a recess 2'forming a work fitting portion to be fitted to the deformed long work 70 is provided, and the fitting body 2 (work) 2 (work) is provided. The inner peripheral surface (inner surface of the recess 2') of the fitted portion) has a shape that matches the outer surface shape (cross-sectional shape) of the deformed long work 70 (pressed portion 70a).

Further, a predetermined clearance is provided between the inner peripheral surface (inner surface of the recess') of the fitting body 2 (work fitting portion) and the outer peripheral surface of the deformed long work 70.

This clearance is a gap for allowing the deformed long work 70 to be deformed to a certain extent in the fitted body 2 (work fitted portion), and other divided body holding portions 3 and 4 described later are used. It also functions as a gap so that the deformed long work 70 can be attached to and detached from the inlaid body 2 without any trouble.

Further, the outer peripheral surfaces (entire peripheral surfaces) of the divided bodies 2A and 2B are set to the pressed surfaces 2a pressed by the pressing portion 1, and the pressed surfaces 2a are provided on the arc surface. The reason why the pressed surface 2a is an arc surface is that it is stably pressed by the pressing surface 1a of the pressing portion 1 described above.

Further, on the left and right side surfaces of the divided bodies 2A and 2B, holding holes 2b through which the axial portions 3b and 4b of the divided body holding portions 3 and 4 are inserted are provided in a penetrating state, and further, one of the divided bodies 2B On the left and right side surfaces of the above, connecting holes 2c through which the convex portion 13a of the holding member 13 described later is inserted are provided in a penetrating state.

Further, the divided bodies 2A and 2B are configured to be detachably joined to each other via a joining structure.

Specifically, the divided bodies 2A and 2B are joined to each other via a holding member 13 (plate material) arranged on the left and right side surfaces of the divided bodies 2A and 2B in a polymerized state.

Each of the holding members 13 is a C-shaped body formed of an appropriate metal member as shown in FIGS. 5 and 6, and a guide provided on one of the divided bodies 2A is located at the rear position on the inner surface thereof. A slide shaft portion 15 that slides into the hole 14 is provided, and each holding member 13 is provided so as to be movable in the inward and outward directions by sliding the slide shaft portion 15, and further, a slide shaft that penetrates the divided body 2A. An urging member 16 (coil spring) is provided at the tip end portion of the portion 15, and each holding member 13 is urged by the urging member 16 so as to press contact with the left and right side surfaces of the divided body 2A.

Therefore, in each holding member 13, the tip portion of the slide shaft portion 15 is pushed against the urging member 16 by the pushing portion 3c provided in the holding body 3a of the split body holding portion 3. It moves in the direction of separation from the left and right side surfaces of the split body 2A (see FIG. 5), and by releasing this pushing force, it moves in the approach direction until it comes into pressure contact with the left and right side surfaces of the split body 2A (see FIG. 6).

Further, a convex portion 13a is provided at a position in front of the inner surface of each holding member 13, and the convex portion 13a is inserted into a hole 2c provided in a penetrating state in the other divided body 2B.

Therefore, when the sandwiching member 13 is moved in the approaching direction in a state where the divided bodies 2A and 2B are overlapped with each other, each sandwiching member 13 is pressed against the left and right side surfaces of the divided bodies 2A and 2B, respectively. The divided bodies 2A and 2B are joined to each other by inserting the convex portion 13a provided in the sandwiching member 13 into the hole 2c provided on the side surface of the divided body 2B. This joint structure is released from the holding state by the divided body holding portions 3 and 4, and is in a bonded state with each other. On the contrary, the bonded structure is released by being released by the divided body holding portions 3 and 4. Will be done.

In this embodiment, after the inlaid body 2 is attached to the pressed portion 70a of the deformed long work 70, the deformed long work 70 is axially rotated by the rotating portion 6, but the deformed long work 70 is deformed by the rotating portion 6. The fitting body 2 may be mounted on the pressed portion 70a of the deformed long work 70 after the long work 70 is axially rotated.

The procedure for using the bending straightening device of the deformed long work 70 according to the present embodiment having the above configuration is as follows.

For example, about 95% of fuel supply pipes that have been forged before cutting can be non-linear by heat treatment.

Among these non-straight lines, about 80% are bent in one direction, and about 20% are bent in two or more directions.

Those that are bent in two or more directions and cannot be corrected are manually processed, but those that are bent in one direction are corrected by this embodiment. Even if it is bent in one direction, if it cannot be corrected in this embodiment, it is manually processed.

That is, the ones that are bent in one direction have different degrees of bending (direction of bending and amount of bending), but the inner surface of the fitting 2 can be accommodated to a certain degree of bending by a preset clearance. The shape is set (that is, a work having a degree of bending that does not match the set inner surface shape cannot be corrected by itself).

Therefore, several types of inner surface shapes of the inlaid body 2 may be created in consideration of the shape of the target work.

First, the information of the work 70 (fuel supply pipe which is a deformed long work 70) without bending is set in the control unit in advance.

Specifically, the work 70 (master bar) without bending is supported by the bearing section 5.

Subsequently, each of the three measuring rod-shaped members 7a on one side (six in total) of the measuring unit 7 is brought into contact with the master bar by projecting diagonally upward from below, and the measuring rod-shaped members 7a project and stop. The pre-processing is completed by setting the set position as a zero value in the control unit.

After that, the value of +-from the zero value when each measuring rod-shaped member 7a is brought into contact with each work 70 indicates whether or not it is bent, or the degree of bending, that is, how much it is bent in which direction. Measurement, calculation, rotation, and then correction.

For example, an inlaid body 2 is provided on the work 70 to be straightened, the work 70 is axially rotated by an angle A (appropriate angle), and the pressing portion 1 is pressed from above the inlaid body 2 by an appropriate straightening amount B (pressing portion 1). Press with the amount of descent) to straighten the work 70. This angle A and the correction amount B (the amount of descent of the pressing portion 1) can also be calculated by calculation, but since the work 70 is irregular and the calculation becomes complicated, the angle A is calculated by several works 70. If the correction amount B (the amount of descent of the pressing portion 1) is stored as data, the angle A and the amount of correction B (the amount of descent of the pressing portion 1) according to the measured degree of bending can be obtained.

Hereinafter, a method (correction method) for straightening a bent deformed long work 70 will be described based on drawings.

First, when the deformed long work 70 is supported by the support portion 5, the elevating body 8 rises and the measuring portion 7 moves to a predetermined height position, and in this state, each measuring rod-shaped member 7a protrudes and has a deformed long work. The degree of bending of the deformed long work 70 is measured in contact with the work 70 (see FIG. 9). At this time, the deformed long work 70 supported by the bearing portion 5 is positioned at a fixed position by preventing the shaft rotation by the positioning portion 10, and the positioning portion 10 has a deformed length by the chuck portion 6b of the rotating portion 6. After sandwiching the shaku work 70, it descends. Further, when the measurement by the measuring unit 7 is completed, the elevating body 8 descends.

Subsequently, the inlaid body 2 is attached to the pressed portion 70a of the deformed long work 70 from which the measurement result that correction is necessary is obtained.

Specifically, the divided bodies 2A and 2B are overlapped with each other in a state where the divided body holding portions 3 and 4 move closer to each other and are interposed between the deformed long workpiece 70 (a state in which the divided body holding portions 3 and 4 are fitted in the recess 2'). 10 and 11) In this state, when the sandwiching bodies 3a and 4a of the split body holding portions 3 and 4 are opened and moved, the shaft-shaped portions 3b and 4b are removed from the holding holes 2b of the split body 2A and 2B and are urged. Being urged by the member 16, each sandwiching member 13 is pressed against the left and right side surfaces of the split bodies 2A and 2B, and the convex portion 13a of the sandwiching member 13 penetrates into the connecting hole 2c of the split body 2B. It is in a joined state (see Fig. 12). After that, the divided body holding portions 3 and 4 move apart from each other (see FIG. 13).

When the fitted body 2 is attached to the deformed long work 70, the deformed long work 70 is previously sandwiched by the chuck portion 6b of the rotating portion 6.

Subsequently, the rotating body 6a of the rotating portion 6 rotates by a predetermined angle, so that the deformed long work 70 and the fitted body 2 rotate around the axis (see FIG. 14). Pressing from an appropriate direction by the pressing unit 1 is possible.

Subsequently, the pressing portion 1 is lowered in the vertical direction to press the inlaid body 2 with an appropriate pressing force, and the deformed long work 70 is deformed downward and corrected (see FIGS. 15 and 16).

At this time, the left and right contact surfaces 1a of the pressing portion 1 come into contact with the pressed surface 2a of the fitted body 2 and are reliably deformed in the vertical direction.

Subsequently, the deformed long work 70 is returned to the initial position (the position when the fitted body 2 is mounted) by the rotation of the rotating portion 6 (see FIG. 17).

Subsequently, the fitted body support portion 9 rises and comes into contact with the lower portion of the fitted body 2, and the fitted body 2 is lifted to a position where it can be held by the divided body holding portions 3 and 4 (see FIG. 18).

Subsequently, the fitted body 2 is removed from the pressed portion 70a of the deformed long work 70.

Specifically, when the divided body holding portions 3 and 4 move closer to each other (see FIG. 19) and the sandwiched bodies 3a and 4a of the divided body holding portions 3 and 4 are closed and moved in this state, the divided bodies 2A and 2B When the shaft-shaped portions 3b and 4b are inserted into the holding holes 2b and the slide shaft portion 15 is pressed against the urging of the urging member 16, the holding members 13 are separated from the left and right side surfaces of the divided bodies 2A and 2B. When the convex portion 13a of the holding member 13 is separated from the connecting hole 2c of the split body 2B, the split bodies 2A and 2B are separated from each other (see FIG. 20). After that, the divided body holding portions 3 and 4 move apart from each other (see FIGS. 21 and 22).

Subsequently, the measuring unit 7 measures whether or not the deformed long work 70 is straightened. If the product is not straight after being corrected by this device a specified number of times, it is considered a defective product.

In this embodiment, the deformed long work 70 that is bent in one direction is targeted as the deformed long work 70 to be corrected, and the number and position of the pressing portion 1 and the inlaid body 2 are provided as described above. However, the number and position of the pressing portion 1 and the inlaid body 2 can be appropriately changed in design.

Specifically, when the deformed long work 70 to be corrected is the deformed long work 70 bent in two or more directions, for example, any plurality of the deformed long work 70 as shown in FIG. 23. An inlaid body 2 is provided at a location, and the pressing portion 1 is provided so as to press the pressing portion 1 at the optimum position from the optimum direction (each pressing portion 1 is operated and pressed at the same time). The deformed long work 70 may be configured to be straightened.

Further, when a plurality of pressing portions 1 are provided, even if the pressing portions 1 are simultaneously operated to press the fitted body 2 as described above, the pressed portions 1 are operated at arbitrary different timings to be fitted. It may be configured to press the body 2.

Further, a plurality of pressing portions 1 are arranged at corresponding positions such as a vertical position and a horizontal position, that is, for example, one pressing portion 1 is arranged at an upper position of a deformed long work 70 supported by the bearing portion 5. When the other pressing portion 1 is arranged at the lower position of the deformed long work 70 supported by the bearing portion 5, when the pressing portion 1 at the upper position is operated to press the inlaid body 2, the pressing portion at the lower position is pressed. By bringing 1 into contact with the inlaid body 2, it may be configured to function as a bearing portion for supporting the deformed long work 70, and conversely, the inlaid body 2 is operated by operating the pressing portion 1 at the lower position. When pressing, the pressing portion 1 at the upper position may be brought into contact with the inlaid body 2 to function as a bearing portion for supporting the deformed long work 70, and further, the pressing side and the bearing side may be used. It may be configured so that and can be switched alternately.

Since this embodiment is configured as described above, since the deformed long work 70 is pressed through the inlaid body 2, the deformed long work 70 is corrected with high accuracy regardless of the shape of the pressed portion 70a. be able to.

Further, in this embodiment, the pressing surface 1a of the pressing portion 1 has an inverted V-shape in the vertical cross section (inverted U-shape in the vertical cross section), and the pressed surface 2a is an arc surface, so that the pressing portion 1 is stable. Pressing in the vertical direction will be performed.

Further, in this embodiment, since a predetermined clearance is provided between the inner peripheral surface of the fitted body 2 and the outer peripheral surface of the deformed long work 70, the inside of the fitted body 2 (work fitting portion) is provided. Deformation of the deformed long work 70 to a certain extent is allowed, and in addition, the fitting 2 can be attached to and detached from the deformed long work 70 without any trouble by using the divided body holding portions 3 and 4. ..

Further, in this embodiment, since the fitted body 2 is composed of a plurality of divided bodies 2A and 2B and is configured to sandwich and fit the deformed long work 70, the fitted body 2 is fitted with respect to the deformed long work 70. The fitting body 2 can be attached and detached satisfactorily.

Further, this embodiment has the divided body holding portions 3 and 4 for holding the divided bodies 2A and 2B, respectively, and the divided body holding portions 3 and 4 are from the positions where the divided bodies 2A and 2B are joined to each other. Since the divided bodies 2A and 2B are provided so as to be movable to a position where they are separated from each other, the fitted body 2 can be more satisfactorily attached to and detached from the deformed long work 70.

Further, in this embodiment, the split bodies 2A and 2B are configured to be detachably joined to each other via a joining structure, and this joining structure is a holding member provided on one of the split bodies 2A so as to be openable and closable. Since the other split body 2B is sandwiched and joined by 13, the above-mentioned action and effect can be surely achieved with a simple structure.

Further, in this embodiment, the joint structure between the divided bodies 2A and 2B is brought into a joined state with each other when the holding state by the divided body holding portions 3 and 4 is released, and is brought into the holding state by the divided body holding portions 3 and 4. As a result, the joined state is released, so that the fitted body 2 can be attached and detached more satisfactorily with respect to the deformed long work 70.

The present invention is not limited to the present embodiment, and the specific configuration of each constituent requirement can be appropriately designed.

1 Pressing part 1a Pressing surface 2 Fitted body 2a Pressed surface 2A Divided body 2B Divided body 3 Divided body holding part 4 Divided body holding part 5 Rotating part 6 Measuring part
13 Holding member
70 Deformed long work
70a Pressed area

Claims (17)

It is a bending straightening device for deformed long workpieces that appropriately supports bent deformed long workpieces and appropriately presses them with the pressing part from the appropriate direction that intersects the length direction of the deformed elongated workpieces to straighten them. Therefore, it has an inlaid body that is detachably provided on the pressed portion of the deformed long work that is pressed by the pressing portion, and the inner peripheral surface of the inlaid body matches the outer surface shape of the pressed portion. A bending correction device for a deformed long workpiece, which has a shape and is characterized in that a predetermined portion of the outer peripheral surface of the fitted body is set to the pressed surface to be pressed by the pressing portion. The bending straightening device for a deformed long work according to claim 1, wherein the bending straightening device for a deformed long work has a rotating portion for axially rotating the deformed long work. The bending straightening device for a deformed long work according to any one of claims 1 and 2, further comprising a measuring unit for measuring the degree of bending of the deformed long work. .. In the bending straightening device for a deformed long work according to any one of claims 1 to 3, the pressing surface of the pressing portion has an inverted V-shape in a vertical cross section or an inverted U-shape in a vertical cross section, and is pressed. A bending straightening device for irregularly shaped long workpieces, characterized in that the surface is an arc surface. In the bending straightening device for a deformed long work according to any one of claims 1 to 4, a predetermined clearance is provided between the inner peripheral surface of the inlaid body and the outer peripheral surface of the deformed long work. A bending straightening device for irregularly shaped long workpieces, which is characterized by being present. In the bending straightening device for a deformed long work according to any one of claims 1 to 5, the inlaid body is composed of a plurality of divided bodies, and the deformed long work is sandwiched between the deformed long work. A bending straightening device for irregularly shaped long workpieces, which is configured to be fitted. The bending straightening device for a deformed long work according to claim 6 has a divided body holding portion for holding each of the divided bodies, and each of the divided body holding portions is divided from a position where the divided bodies are in a joined state. A bending correction device for irregularly shaped long workpieces, which is characterized in that the bodies are movably provided to a position where they are separated from each other. In the bending straightening device for a deformed long work according to any one of claims 6 and 7, the divided bodies are configured to be detachably joined to each other via a joining structure, and the joining structure is one of the two. A bending straightening device for a deformed long work, characterized in that the other divided body is sandwiched and joined by a sandwiching member provided to be openable and closable in the divided body. In the bending straightening device for a deformed long work according to claim 8, the joint structure is brought into a joined state when the holding state by the divided body holding portion is released, and is brought into a holding state by the divided body holding portion. A bending straightening device for a deformed long workpiece, characterized in that the joined state is released. A straight line that appropriately supports a bent deformed long work and corrects it into a straight line by properly pressing it with a pressing part from an appropriate direction that intersects with the length direction of the deformed long work to make a straight deformed long work. A method for manufacturing a deformed long work, in which the deformed long work is arranged and supported at a predetermined position, the following fitting body is provided at a pressed portion of the deformed long work, and the deformed long work is provided. A method for manufacturing a linear long work, characterized in that the outer peripheral surface of the inlaid body is appropriately pressed by the pressing portion from the appropriate direction by appropriately rotating the shaft.
Note: The deformed long work is detachably provided, the inner peripheral surface has a shape that matches the outer surface shape of the deformed long work, and a predetermined portion of the outer peripheral surface is a pressed surface to be pressed by the pressing portion. The set inset. A straight line that appropriately supports a bent deformed long work and corrects it into a straight line by properly pressing it with a pressing part from an appropriate direction that intersects with the length direction of the deformed long work to make a straight deformed long work. A method for manufacturing a deformed long work, in which the deformed long work is arranged and supported at a predetermined position, the deformed long work is appropriately rotated around the axis, and then the deformed long work is pressed on a pressed portion. A method for manufacturing a linear long workpiece, which comprises providing the following fitting body and appropriately pressing the outer peripheral surface of the fitting body with the pressing portion from the proper direction.
Note: The deformed long work is detachably provided, the inner peripheral surface has a shape that matches the outer surface shape of the deformed long work, and a predetermined portion of the outer peripheral surface is a pressed surface to be pressed by the pressing portion. The set inset. In the method for manufacturing a linear long workpiece according to any one of claims 10 and 11, the pressing surface of the pressing portion has an inverted V-shape in a vertical cross section or an inverted U-shape in a vertical cross section, and is pressed. A method for manufacturing a linear long workpiece, characterized in that the surface is an arc surface. In the method for manufacturing a linear long work according to any one of claims 10 to 12, a predetermined clearance is provided between the inner peripheral surface of the inlaid body and the outer peripheral surface of the deformed long work. A method for manufacturing a linear long workpiece, which is characterized by being present. In the method for manufacturing a linear long work according to any one of claims 10 to 13, the inlaid body is composed of a plurality of divided bodies, and the deformed long work is sandwiched between the deformed long work. A method for manufacturing a linear long workpiece, which is characterized in that it is configured to be fitted. In the method for manufacturing a linear long work according to claim 14, each of the divided bodies has a divided body holding portion for holding the divided bodies, and each of the divided body holding portions is divided from a position where the divided bodies are in a joined state. A method for manufacturing a linear long workpiece, characterized in that the bodies are movably provided to a position where they are separated from each other. In the method for manufacturing a linear long workpiece according to any one of claims 14 and 15, the divided bodies are configured to be detachably joined to each other via a joining structure, and the joining structure is one of the two. A method for manufacturing a linear long workpiece, characterized in that the other divided body is sandwiched and joined by a sandwiching member provided in the divided body so as to be openable and closable. In the method for manufacturing a linear long workpiece according to claim 16, the joint structures are joined to each other by releasing the holding state by the divided body holding portion, and are held by the divided body holding portion. A method for manufacturing a linear long workpiece, which is configured so that the joined state is released by.

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