JP7354723B2 - Linear member shaping device and linear member shaping method - Google Patents

Description

The present invention relates to a linear member shaping device and a linear member shaping method.

The straightness of the linear member may decrease due to bending. If the straightness of the linear member is low, there is a risk that the position of the end of the linear member may change when the linear member is attached using a machine, resulting in poor attachment. Therefore, the linear member is shaped by straightening or the like using a member that comes into close contact with the linear member.

In Patent Document 1, at least one wire rod whose end portion is fixed to a component body is ironed and straightened by moving a wire chuck portion slidably provided on a base body. Then, the tensile force generated between the wire rod and the component body during ironing straightening is measured, and if the measured tensile force is greater than a predetermined value, the ironing straightening is stopped by stopping the movement of the wire chuck part in the wire direction. A wire straightening device has been proposed. According to the wire straightening device, by controlling the tensile force generated between the wire and the component body to a predetermined value or less, it is possible to prevent the tensile force from becoming larger than the bonding strength between the component body and the wire.

Japanese Patent Application Publication No. 2010-75957 (published on April 8, 2010)

In Patent Document 1, in a wire whose end portion is fixed to a component body, the tensile force generated between the wire rod and the component body is measured, and the measured tensile force is made larger than the bonding strength between the component body and the wire rod. limit. As a result, it is possible to obtain a wire straining straightening device in which the end portion of the wire rod is fixed to the component body, which suppresses the occurrence of defects such as the wire rod separating from the component body.

However, the inventor of the present invention found that by straightening a wire whose end portion is fixed to a component body by using a wire chuck section, there is a risk that damage to the wire may occur due to friction when the wire chuck section moves. Ta.

One aspect of the present disclosure has been made in view of these circumstances, and the purpose is to reduce the occurrence of scratches on the linear member due to friction etc. on the linear member fixed by the fixing member. The aim is to provide the technology to

In order to solve the above problem, the following configuration is adopted.

That is, a linear member shaping device according to one aspect of the present disclosure is a linear member shaping device that shapes a linear member and arranges it at a predetermined position, and includes a first moving unit that performs an operation of sandwiching the linear member. and a moving part including a second moving part, a fixing part that switches between a state in which the linear member is fixed and a state in which it is released, and a movement control part that controls the operation of the moving part, The control section is configured to control a control section between the opposing surface of the first moving section and the first moving section in a state where the linear member is fixed to the fixed section and arranged between the first moving section and the second moving section. 2. The inscribed circle diameter, which is the diameter of the circle inscribed in the opposing surface of the moving part, is set to be larger than the diameter of the cross section of the linear member, and the moving part is It is moved along a straight line extending in a predetermined direction from a fixed position.

With this configuration, in a state where the linear member is disposed between the first moving part and the second moving part, the linear member can be shaped by moving the moving part along a straight line extending in a predetermined direction. Further, since the diameter of the inscribed circle is larger than the diameter of the cross section of the linear member, friction is less likely to occur between the moving part and the linear member, and the linear member is less likely to be damaged.

In the linear member shaping device according to the one aspect, the linear member may be fixed to the fixed part and disposed between the first moving part and the second moving part. The movement control section fixes the moving section and the linear member by changing the diameter of the inscribed circle, moves the moving section to arrange the linear member on the fixed section, and then moves the linear member to the fixed section. The diameter of the inscribed circle is changed to be larger than the diameter of the cross section of the linear member.

According to this configuration, the moving part can be used as a guide for arranging the linear member on the fixed part. This eliminates the need for a guide mechanism that guides the linear member in order to fix the linear member to the fixed portion, and the linear member shaping device can be simplified.

In the linear member shaping device according to the one aspect, the above-mentioned step with respect to a straight line connecting a point in the first moving section where the linear member can contact and a point in the second moving section where the linear member can contact. When the distance from the fixed position is a first distance, the ratio of the diameter of the inscribed circle to the first distance is the upper limit required as the accuracy with respect to the distance from the fixed position to the position where accuracy is required. is less than or equal to the percentage of

According to this configuration, by controlling the diameter of the inscribed circle, even in a place where the linear member cannot contact the moving part, the linear member can be controlled to have a desired swing width or less.

In the linear member shaping device according to the one aspect, the fixing portion has a structure in which two rollers are arranged to face each other on a roller surface, and the linear member is fixed by changing the distance between the two rollers. Toggle between fixing and releasing.

According to this configuration, by appropriately rotating the rollers after the shaping process, the linear member can be easily moved in the stretching direction, and the linear member can be placed at a desired position. Thereby, it is possible to efficiently process the linear member after the shaping process.

The method for shaping a linear member according to the one aspect is a method for shaping a linear member using a linear member shaping device, wherein the linear member is fixed to the fixing part. and an inscribed circle diameter that is the diameter of a circle inscribed in the opposing surface of the first moving section and the opposing surface of the second moving section when the moving section is disposed between the first moving section and the second moving section. is larger than the cross-sectional diameter of the linear member; and a third step of moving the moving part along a straight line extending in a predetermined direction from a fixed position of the linear member in the fixed part. 4 steps.

According to this configuration, by performing the third step and the fourth step, a method for shaping a linear member is achieved in which the linear member is less likely to suffer from scratches caused by friction or the like.

The linear member shaping method according to the one aspect includes, before the third step, a first step of fixing the moving part and the linear member by changing the diameter of the inscribed circle, and the moving part A second step of arranging the linear member at the fixing part by moving the linear member and fixing the linear member to the fixing part is carried out.

According to this configuration, by further performing the first step and the second step, a member for arranging the moving part on the fixed part becomes unnecessary. Thereby, the linear member shaping device can be simplified.

According to one aspect of the present invention, there is provided a shaping technique for a linear member that reduces the occurrence of scratches on the linear member due to friction between the linear member and a moving part in the linear member fixed by a fixed member. can be provided.

FIG. 1 is a block diagram showing the main configuration of a linear member shaping apparatus according to an embodiment. FIG. 2 is a perspective view of the configuration of the linear member shaping device according to the embodiment. FIG. 3 is a schematic diagram showing the linear member shaping device according to the embodiment from a linear direction extending in a predetermined direction from the fixed position of the linear member in the fixing part. FIG. 4 is a schematic diagram showing the linear member shaping device according to the embodiment from a direction perpendicular to a straight line extending in a predetermined direction from the fixed position of the linear member in the fixing part. FIG. 5 is an enlarged view of the portion indicated by PP in FIG. FIG. 6 is a diagram schematically illustrating the relationship between the inscribed circle diameter and the swing width of the linear member. FIG. 7 is a diagram illustrating an example of a processing procedure of the linear member shaping apparatus according to the embodiment.

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment (hereinafter also referred to as "this embodiment") according to one aspect of the present invention will be described below based on the drawings.

§1 Application Example An overview of the configuration of the linear member shaping device according to the present embodiment will be described using FIG. 1. FIG. 1 is a block diagram showing the main configuration of a linear member shaping apparatus according to this embodiment.

The linear member shaping device 1 is a device that shapes a linear member 40 and arranges it at a predetermined position, and includes at least a moving section 10, a fixing section 20, and a control section 30. In the following, explanation will be given using an example in which a single linear member is shaped and placed in a predetermined position. good.

The moving section 10 includes a first moving section 11 and a second moving section 12. The moving unit 10 shapes the linear member 40 by moving along a straight line extending in a predetermined direction from a fixed position of the linear member 40 in the fixing unit 20, which will be described later. The first moving section 11 and the second moving section 12 perform an operation of sandwiching the linear member 40, and are inscribed in the opposing surface of the first moving section 11 and the opposing surface of the second moving section 12, which are the distance between them. The inscribed circle diameter (hereinafter referred to as "inscribed circle diameter"), which is the diameter of the circle, is variable.

The fixing part 20 can switch between a state in which the fixing part 20 and the linear member 40 are fixed and a state in which they are released.

The control section 30 includes a fixed section control section 31 and a movement control section 32. The fixing section control section 31 performs control to switch between fixing and releasing the fixing section 20 and the linear member 40. The movement control section 32 controls the diameter of the inscribed circle and controls the movement section 10 to move along a straight line extending in a predetermined direction from the fixed position of the linear member 40 in the fixed section 20. A straight line extending in a predetermined direction from the fixed position of the linear member 40 in the movement control unit 32 is, for example, approximately the direction in which the linear member 40 extends.

When the linear member 40 is fixed to the fixed portion 20 and disposed between the first moving portion 11 and the second moving portion 12, the movement control portion 32 adjusts the diameter of the inscribed circle to the linear member 40. 40, and the movable part 10 is moved along a straight line extending in a predetermined direction from the fixed position of the linear member 40 in the fixed part 20.

According to the above control, as the moving part 10 moves, the linear member 40 fixed to the fixed part 20 is shaped to have an amplitude less than or equal to the diameter of the inscribed circle at the position of the moving part 10. Ru. Further, since the diameter of the inscribed circle is larger than the diameter of the cross section of the linear member 40, it is possible to reduce friction between the moving unit 10 and the linear member 40 when the moving unit 10 moves. That is, to realize the linear member shaping device 1 that can shape the linear member 40 fixed by the fixing part 20 while reducing the occurrence of scratches on the linear member 40 due to friction or the like. I can do it.

§2 Configuration example <Linear member shaping device>
Next, an example of the configuration of the linear member shaping device 1 according to this embodiment will be described using FIGS. 2 to 6. FIG. 2 is a perspective view schematically illustrating an example of the configuration of the linear member shaping device 1 according to the present embodiment. FIG. 3 is a diagram schematically illustrating an example of the configuration of the linear member shaping device 1 according to the present embodiment from the direction of a straight line extending in a predetermined direction from the fixed position of the linear member 40 in the fixing part 20. . FIG. 4 schematically illustrates an example of the configuration of the linear member shaping device 1 according to the present embodiment from a direction perpendicular to a straight line extending in a predetermined direction from the fixed position of the linear member 40 in the fixing part 20. It is a diagram. FIG. 5 is an enlarged view of the portion indicated by PP in FIG. FIG. 6 is a schematic diagram showing a state in which the linear member 40 fixed to the fixed part 20 is arranged between the first moving part 11 and the second moving part 12 of the moving part 10.

As shown in FIGS. 2 to 4, the linear member shaping device 1 according to the present embodiment includes a moving section 10, a first roller 21, and a second roller 22. The moving section 10 includes a first moving section 11 , a second moving section 12 , and a moving drive mechanism 13 . The movement drive mechanism 13 changes the diameter of the inscribed circle, and also changes the vertical and longitudinal positions of the first moving section 11 and the second moving section 12. Here, the front-back direction is a direction along a straight line extending in a predetermined direction from the fixed position of the linear member 40 in the fixed part 20.

As shown in FIG. 5, the first moving section 11 and the second moving section 12 can hold the linear member 40 by sandwiching the linear member 40 in a predetermined direction, from the left and right directions in the figure. It is possible. Here, the inscribed circle diameter D1 can be changed. The movable section 10 holds the linear member 40 by setting the inscribed circle diameter D1 to be equal to the diameter of the linear member 40, or a value slightly smaller than the diameter in consideration of the elastic deformation of the linear member 40. be able to. On the other hand, by making the inscribed circle diameter D1 larger than the diameter of the linear member 40 by a predetermined amount, it is possible to provide a gap between the first moving part 11 and the second moving part 12 and the linear member 40. can be guided in any condition.

Note that a protrusion is provided at the lower part of the contact surface with the linear member 40 in each of the first moving part 11 and the second moving part 12. By supporting the lower part of the linear member 40 by these projections, even if the inscribed circle diameter D1 is larger than the diameter of the linear member 40 by a predetermined amount, the linear member 40 is prevented from hanging downward. It can be prevented.

Further, in the present embodiment, the facing surface of the first moving section 11 and the facing surface of the second moving section 12 are parallel to each other, but the present invention is not limited to this. For example, the facing surface of the first moving section 11 and the facing surface of the second moving section 12 may be arranged so as to be inclined at a predetermined angle from a mutually parallel state. In this configuration, the structure of at least one of the first moving section 11 and the second moving section 12 is such that the structure between the first moving section 11 and the second moving section 12 is located below the contact surface with the linear member 40. If the distance is shortened, the linear member 40 can be prevented from hanging downward even without providing a protrusion.

The first roller 21 and the second roller 22 are examples of the fixing section 20. The first roller 21 and the second roller 22 are arranged to face each other on their roller surfaces. The fixing portion 20 can be switched between a state in which the linear member 40 is fixed and a state in which it is released by changing the distance between the first roller 21 and the second roller 22. Moreover, the fixing part 20 can easily move the linear member 40 in the stretching direction of the linear member by appropriately rotating the first roller 21 and the second roller 22. Thereby, the linear member 40 after the shaping process can be moved from the linear member shaping apparatus 1, and the processing process on the linear member 40 after the shaping process can be efficiently carried out. As described above, by using the first roller 21 and the second roller 22 as the fixing part 20, the function of fixing or releasing the linear member 40 to the fixing part 20 and the function of fixing the linear member 40 to a predetermined position are achieved. The fixing part 20 has the function of arranging it at a certain position.

The linear member 40 may be any linear member that undergoes a shaping process. In this embodiment, the linear member 40 is assumed to be a lead wire as an electrical wiring.

<Control unit>
The movement control section 32 moves the movement section 10 by controlling the movement drive mechanism 13. Furthermore, the movement control section 32 changes the diameter of the inscribed circle by controlling the movement drive mechanism 13.

Furthermore, the movement control unit 32 controls the state in which the fixing unit 20 fixes the linear member 40 and the state in which it releases the linear member 40 by controlling the relative positions of the first roller 21 and the second roller 22.

<Relationship between inscribed circle diameter and required upper limit of runout width>
The relationship between the diameter of the inscribed circle and the required upper limit of the deflection width at the position where the accuracy of the linear member 40 is required will be explained using FIG.

FIG. 6 is a schematic diagram showing a state in which the linear member 40 fixed to the fixed part 20 is arranged between the first moving part 11 and the second moving part 12 included in the moving part 10, when viewed from above. 501 is a view when viewed from the side, 502 is a view when viewed from the side, and 503 is an enlarged view of 501 centered on point I.

In FIG. 6, a state in which the linear member 40 is in contact with the first moving part 11 is indicated by 41, a state in which it is in contact with the second moving part 12 is indicated by 42, and the linear member 40 is moved in a predetermined direction from the fixed position of the linear member 40. The state along the extending straight line 51 is indicated by 43. Here, it is assumed that the straight line 51 is located at an intermediate position between the case where the linear member 40 is in the state shown by 41 and the case where the linear member 40 is in the state shown by 42.

The linear member shaping device 1 shown in FIG. 6 includes a guide portion 60 for positioning the tip of the linear member 40 in addition to the linear member shaping device 1 of the §2 configuration example. The guide portion 60 includes a first guide 61 and a second guide 62 that move to sandwich the linear member 40 from above and below.

The position where the linear member 40 is fixed by the first roller 21 and the second roller 22 is defined as a fixed position D. Further, the point where the linear member 40 and the first moving section 11 come into contact is defined as a point E. Point F is the position of the center of gravity of the cross-sectional shape of the linear member 40 when the linear member 40 and the first moving section 11 come into contact at point E. Point G is the intersection of a straight line that passes through this point F and intersects perpendicularly to the straight line 51. Further, the distance from the fixed position D to the point G is assumed to be B. Then, the angle formed by the angle D of the right triangle FDG is assumed to be θ. Further, the point where the linear member 40 and the second moving section 12 come into contact is defined as a point L, and the center of gravity of the cross-sectional shape of the linear member 40 when the linear member 40 and the second moving section 12 contact at the point L. Let the position of be point K.

At this time, the straight line EL connecting points E and L corresponds to the diameter of the inscribed circle, and the distance is approximately A+2d. Note that A is the distance from point F to point K. Further, d is the radius of the cross-sectional shape of the linear member 40.

Let C be the distance from the fixed position D to the position where accuracy of the swing width of the linear member 40 is required. At distance C, a point on the outermost surface of linear member 40 when linear member 40 is at position 41 is defined as point H. Further, the position of the center of gravity of the cross-sectional shape of the linear member 40 in this case is defined as point I. When a straight line that perpendicularly intersects the outermost surface of the linear member 40 is drawn from point I, the point where the outermost surface of the linear member 40 touches the straight line is defined as point M. Then, a point on the straight line 51 at the distance C is defined as a point J. At this time, twice the distance X of the straight line HJ connecting point H and point J is the upper limit required for the accuracy of the swing width of the linear member 40.

Here, it is the distance from the fixed position to a straight line connecting a point E where the linear member 40 in the first moving section 11 can come into contact with a point L where the linear member 40 can come into contact in the second moving section 12. Let B be the first distance. In this case, the ratio of the inscribed circle diameter to the first distance is required as the accuracy with respect to the distance C from the fixed position D to the point J, which is the position where the accuracy of the swing width of the linear member 40 is required. It is preferable that the ratio is below the upper limit value. Thereby, the linear member 40 can be shaped so that the swing width of the linear member 40 is less than or equal to the required accuracy.

Note that it is preferable that the movement control section 32 moves the moving section 10 back and forth within a range such that the distance of the point G from the fixed position D is at least greater than B.

Moreover, if the above-mentioned relationship is expressed as an equation, it can be expressed as the following equations 1 to 3.

Equation 1 is a modification of tanθ=(distance of straight line FG)/(distance of straight line DG) in right triangle FGD in which the angle G is a right angle.

Equation 2 shows that for a right triangle HJD in which the angle J is a right angle, the distance This shows that the distance is approximately the same as that of the actual distance. In addition, Equation 3 calculates the distance of the straight line HI connecting points H and I in Equation 2 with the radius (d) of the linear member 40 and the size of the angle I in the right triangle HMI where the angle M is a right angle (θ ).

That is, by setting the diameter of the inscribed circle to be less than or equal to A that satisfies Equations 1 and 2 or Equations 1 and 3 above, the swing width of the linear member 40 can be made less than or equal to the required accuracy. The linear member 40 can be shaped so that it becomes.

§3 Operation example Next, an operation example of the linear member shaping device 1 will be described using FIG. FIG. 7 is a diagram illustrating an example of the processing procedure of the linear member shaping device 1. Note that the processing procedure described below is only an example, and each process may be changed as much as possible. Further, regarding the processing procedure described below, steps can be omitted, replaced, or added as appropriate depending on the actual form.

The linear member shaping apparatus 1 shown in FIG. 7 is a linear member shaping apparatus 1 having a §2 configuration example.

As shown at 101, the linear member shaping device 1 fixes the moving unit 10 and the linear member 40 by controlling the diameter of the inscribed circle in the moving unit 10 using the movement control unit 32 (first step). . Next, the movement control unit 32 moves the moving unit 10 so that the linear member 40 is placed between the first roller 21 and the second roller 22. Next, as shown at 102, the linear member shaping device 1 moves the first roller 21 and the second roller 22 relative to each other so that the fixing unit 20 fixes the linear member 40 by the fixing unit control unit 31. Control the position (second step). Next, as shown at 103, the linear member shaping device 1 releases the fixation between the moving unit 10 and the linear member 40 by controlling the diameter of the inscribed circle of the moving unit 10 using the movement control unit 32. , a predetermined gap is provided between the first moving section 11 and the second moving section 12 and the linear member 40. (Third step). Next, the movement control unit 32 moves the movement unit 10 in the extending direction of the linear member 40 between the fixed position D and the point G shown in FIG. 5 (fourth step). By performing the first to fourth steps as described above, the linear member 40 can be shaped.

The linear member shaping device 1 further moves the linear member 40 so as to sandwich it between the first guide 61 and the second guide 62, as shown at 104. Here, the position where the linear member 40 is sandwiched between the first guide 61 and the second guide 62 is a point J shown in FIG. 5, which is a position where accuracy of the swing width of the linear member 40 is required. That is, by setting the diameter of the inscribed circle in the moving part 10 as described above, the linear member 40 can be accurately sandwiched between the first guide 61 and the second guide 62 without shifting with respect to the guide part 60. can be made so that

The first guide 61 and the second guide 62 sandwich the linear member 40 with a predetermined gap between them, so that the linear member 40 can be moved in the stretching direction. In this state, by adjusting the position of the linear member 40 using the fixing part 20, the tip of the linear member 40 can be accurately placed at a predetermined position in three-dimensional space. Thereafter, a predetermined processing operation, such as a terminal attachment operation, is performed on the tip portion of the linear member 40.

1 Linear member shaping device 10 Moving unit 11 First moving unit 12 Second moving unit 20 Fixed unit 32 Movement control unit 40 Linear member D1 Inscribed circle diameter

Claims (4)

A linear member shaping device that shapes a linear member and places it in a predetermined position,
a moving section including a first moving section and a second moving section that performs an operation of sandwiching the linear member;
a fixing part that switches between a state in which the linear member is fixed and a state in which it is released;
A movement control unit that controls the operation of the movement unit,
The movement control section is configured to control the opposing surface of the first moving section and the second moving section when the linear member is fixed to the fixed section and disposed between the first moving section and the second moving section. The inscribed circle diameter, which is the diameter of the circle inscribed in the opposing surface of the second moving part, is set to be larger than the diameter of the cross section of the linear member, and the moving part is Move the member along a straight line extending in a predetermined direction from its fixed position ,
In order to make the linear member fixed to the fixed part and disposed between the first moving part and the second moving part, the movement control part:
The moving part and the linear member are fixed by changing the diameter of the inscribed circle, the linear member is placed in the fixed part by moving the moving part, and then the diameter of the inscribed circle is changed. A linear member shaping device that changes the linear member into a state larger than the cross-sectional diameter of the linear member . When a first distance is a distance from the fixed position to a straight line connecting a point in the first moving part where the linear member can contact and a point in the second moving part where the linear member can contact, The ratio of the inscribed circle diameter to the first distance is less than or equal to the ratio of the upper limit value required as the accuracy to the distance from the fixed position to the position where the accuracy of the swing width of the linear member is required. The linear member shaping device according to claim 1 . The fixing part has a structure in which two rollers are arranged facing each other on the roller surface, and by changing the distance between the two rollers, the linear member can be fixed and released. The linear member shaping device according to claim 1, wherein the linear member shaping device is switched. A method for shaping a linear member, the method comprising: shaping the linear member using the linear member shaping device according to any one of claims 1 to 3 ;
a first step of fixing the moving part and the linear member by changing an inscribed circle diameter that is a diameter of a circle inscribed in the opposing surface of the first moving part and the opposing surface of the second moving part; ,
a second step of arranging the linear member on the fixed part by moving the moving part and fixing the linear member to the fixed part;
In a state where the linear member is fixed to the fixed part and disposed between the first moving part and the second moving part, the diameter of the inscribed circle is smaller than the diameter of the cross section of the linear member . The third step is to make it larger,
A method for shaping a linear member, including a fourth step of moving the moving unit along a straight line extending in a predetermined direction from a fixed position of the linear member in the fixed unit.

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