JPH03202261A - Face polishing device for long section - Google Patents

Abstract

PURPOSE:To enable the stable polishing of the lengthwise face of a long section by applying the constitution wherein the long section is rotated in a cross sectional direction while maintained approximately at a constant position. CONSTITUTION:A long section is placed on a height positioning member (seating rail) 5, and kept on the external surfaces of rollers 1 at the guide grooves 11 thereof. In this state, when each of the rollers 1 rotates synchronously, the first side of the groove 11 rushes up the side of the section according to an increase in the rotational angles of the rollers 1. Consequently, the long section starts rotation in a cross sectional direction. In this case, a boundary area between the first and second sides of the groove 11 moves along a roller axial line. The long section, therefore, rotates approximately at a constant position, while kept on the external surfaces of the rollers 1, and the face of the long section is polished with a grinder.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to an end face polishing device capable of polishing the longitudinal end face of an elongated shape substantially at a fixed position.

This end face polishing device can be applied to chamfering long shapes having a square cross section, an opening shape, a triangular cross section, etc.

[Prior Art] As a polishing device for polishing the longitudinal end face of a long piece having a circular cross section, a plurality of long cylindrical rollers having spiral guide grooves formed on the outer peripheral surface are arranged in parallel. Then, the elongated material is oriented perpendicular to the roller axis, the elongated material is placed directly on the guide groove of each roller and held, and in this state, the plurality of rollers are rotated in synchronization. A method in which a long shape is rotated and fed horizontally in the cross-sectional direction, and the end face in the length direction of the long shape is polished with a polishing machine (Japanese Patent Publication No. 55114
No. 63) is known.

[Problems to be Solved by the Invention] In the above-mentioned device, as described above, the roller has a long cylindrical shape, and the elongated member rotates in the cross-sectional direction of the roller while rotating in the axial direction of the roller. being sent sideways.

In this way, since the elongated material is traversed along the axial direction of the long cylindrical roller, the lateral feeding distance of the elongated material is large, and the installation space for the apparatus is correspondingly large.

The present invention differs from the above-mentioned method in which the long lateral feed distance is long, and the present invention rotates the long shape in the transverse cross-sectional direction at a substantially fixed position. It is an object of the present invention to provide an end face polishing device for a long shape material that can be polished in a fixed position.

[Means for Solving the Problems] The end face polishing device for a long profile according to the present invention has the following features: the roller axes are arranged at a predetermined distance from each other in a direction that intersects the length direction of the long profile, and A plurality of rotatable rollers each having a guide groove extending a predetermined length in the circumferential direction, a drive device that synchronizes and rotates each roller in the same direction, and a long material that supports the lowermost end surface of the elongated material in abutting manner. A height positioning member that regulates the vertical position of the lowest end surface of the shape material, and a height positioning member that is provided so as to be able to face the end surface in the length direction of the long shape material that is biased by the rotation of the roller, and that is provided so as to be able to face the end surface in the length direction of the long shape material that is biased by the rotation of the roller. The guide groove of the roller is a cross section passing through the roller axis, and has one side that forms a groove opening and is parallel to the roller axis, and a first side that is inclined with respect to the roller axis. The boundary area between the first side and the second side is approximately the center of rotation of the elongated shape, and the first side becomes longer as the rotation angle of the roller becomes larger. In order to push up the sides of the elongated section and rotate the elongated section in the cross-sectional direction, the rising angle relative to the roller axis increases, and as the rotation angle of the roller increases, the rising angle relative to the roller axis increases. The angle becomes smaller and the first and second sides
It has a configuration in which the boundary area between the first and second sides moves along the roller axis, and the boundary area between the first side and the second side is approximately the center of rotation while maintaining the long shape on the outer peripheral surface of the roller. The long shape is rotated in the cross-sectional direction, and the end face of the long shape in the length direction is polished by a polishing machine while the long shape is stopped or rotating. It is something.

[Function] The elongated member is placed on the height positioning member, and the elongated member is maintained on the outer circumferential surface having the roller guide groove. In this state, when each roller rotates synchronously, the first side pushes up the side of the elongated shape as the rotation angle of the roller increases.

Therefore, the elongated section begins to rotate in its cross-sectional direction. At this time, the boundary area between the first side and the second side moves along the roller axis. Therefore, the elongate member is rotated in a substantially fixed position while being maintained on the outer peripheral surface of the roller, and the end face of the elongate member is polished by the polishing machine.

[Example] An example of an end face polishing apparatus for a long profile according to the present invention is shown in FIGS.
This will be explained with reference to FIG.

(Configuration of Example) First, the configuration of this example will be explained. As shown in FIG. 1, the rollers 1 are made of metal and are provided in plural numbers.
They are arranged parallel to each other at predetermined intervals along the length direction. As shown in FIGS. 2 and 3, the roller 1 has a shaft hole 1a into which a drive shaft for rotating the roller 1 is fitted.
is formed, and a keyway 1b with which a drive shaft engages is formed in the inner circumference of the shaft hole 1a. Note that the axis 10 of the roller 1 is the center of rotation of the roller 1.

The outer peripheral surface of each roller 1 is approximately (3/3) in the circumferential direction of the roller 1.
A guide groove 11 extending approximately 4 times is formed. As shown in FIGS. 2 and 3, the guide groove 11 of the roller 1 is
It is divided by the collar part 12.13, and the collar part 12.13
The circumferential surfaces 12a and 13a are formed in a locus centered on a center point ε which is eccentric in size from the axis 10.

The guide groove 11 has a cross-sectional shape passing through the axis 10 of the roller 1, that is, the cross-section shown in FIG. 3, and has one side forming the groove opening 14, a downwardly inclined first side 11i, and a downwardly inclined second side 11j. It has a triangular shape. In addition, in FIG. 3, the radius of the bottommost portion 11X of the guide groove 11 is the dimension r. Also, a flat outer circumferential surface 11 on which no guide groove 11 is formed.
The radius of a is also the dimension ``.Therefore, the dashed line δ in Figure 2
indicates the locus of the bottommost portion 11x of the guide groove 11.

Here, the relationship between the rotation angle of the roller 1 and the rising angle of the side of the guide groove 11 is shown in FIGS.

As shown in FIG. 4(A), when the rotation angle of the roller 1 is 0 degrees, the outer peripheral surface 11a of the guide groove 11 is flat and parallel to the axis 10 of the roller 1. As shown in FIG. 4(B), when the rotation angle of the roller 1 is 45 degrees, the first side 11G of the guide groove 11 is at an angle e1 (8
The second side 11d is inclined at an angle e2 (11,25 degrees) with respect to the perpendicular.
The boundary area between 1C and the second side 11d is a corner section 1.

As shown in FIG. 4(C), when the rotation angle of the roller 1 is 90 degrees, the first side 11e of the guide groove 11 is inclined at an angle e3 (73,59 degrees) with respect to the perpendicular 10, and the second The side 11f is inclined at an angle of 04 (22.5 degrees) with respect to the perpendicular line, and the boundary area between the first side 11e and the second side 11f is a corner λ2.

As shown in FIG. 4(D), the rotation angle of roller 1 is 135
degree, the first side 11q of the guide groove 11 is inclined at an angle e5 (56, 58 degrees) with respect to the perpendicular line, and the second side 11q
1h is inclined at an angle e6 (33.75 degrees) with respect to the perpendicular, and the boundary area between the first side 11C1 and the second side 11h is a corner λ3.

As shown in Figure 4(E), the rotation angle of roller 1 is 180 degrees.
When the first side 11 of the guide groove 11 is inclined at an angle e7 (45 degrees) with respect to the perpendicular, the second side 11j is inclined at an angle e8 (45 degrees) with respect to the perpendicular, and the first side 11 of the guide groove 11 is inclined at an angle e8 (45 degrees) with respect to the perpendicular. The boundary area between the side 11i and the second side 11 is a corner λ4.

As shown in Fig. 4 (F), the rotation angle of roller 1 is 225
When the first side 11 of the guide groove 11 is inclined at an angle e9 (27,71 degrees) with respect to the perpendicular, the second side 1
1m is inclined at an angle e10 (56.25 degrees) with respect to the perpendicular, and the boundary between the first side 11 and the second side 11m is a flat side 11q.

As shown in Figure 4 (G), the rotation angle of roller 1 is 270
At the time of degree, the first side 11n of the guide groove 11 is inclined at an angle e11 (6,46 degrees) with respect to the perpendicular line, and the second side 11
1p is inclined at an angle e12 (67.5 degrees) with respect to the perpendicular, and the boundary between the first side 11p and the second side 11m is a flat side 11r.

The rotation angle of the roller is 315 as shown in Figure 4.
At the time of rotation, the groove portion of the guide groove 11 disappears and becomes a flat outer circumferential surface 11a.

In this embodiment, as is clear from FIG. 4(A) to FIG. ``H, long shape material W
The nozzle is the center of rotation, and moves little by little toward the right in FIGS. 4(A) to 4(Sun) along the axis 10 of the roller 1.

Furthermore, an explanation will be added regarding the apparatus of this embodiment. In this embodiment, as shown in FIG. 1, a motor 4 is provided as a drive device for rotating each roller 1 in the same direction in synchronization, that is, in the direction of arrow S. Furthermore, a rail 5 is disposed as a receiver as a member for determining the height M. The rail 5 is for supporting the lowermost end surface of the elongated material W in abutment and regulating the vertical position of the lowermost end surface of the elongated material W to a constant height position. The lowermost end surface of the roller 1 is raised above the bottom surface of the guide groove 11 of the roller 1.

As shown in FIG. 1, the polisher 7 is disposed so as to be able to face the end surface W10 of the elongated shape member W in the length direction. The polishing machine 7 includes a bracket 71 pivotally supported via a shaft 70 so as to be swingable in the downward direction of the arrow and in the opposite direction, a rotating grindstone 72 held at one end of the bracket 71, and a rotating grindstone 72 held at the other end of the bracket 71. The bracket 71 is formed by a motor 73 held by the motor 73, a chain 74 extending between the motor shaft 73a of the motor 73 and the shaft 72a of the rotating grinder 572, and a cylinder device 75 for swinging the bracket 71. The cylinder rod 76 of the cylinder device 75 is pivotally supported on the other end side of the bracket 71 via a pin 76a, and the lower end of the cylinder device 75 is connected to the pin 75a.
It is pivotally supported by a fixed part 78 via. Here, when the cylinder door 6 of the cylinder device 75 moves upward and extends,
The bracket 71 swings in the downward direction of the arrow through the shaft 70,
The rotating grindstone 72 moves downward. On the other hand, when the cylinder rod 76 moves downward and exits, the rotary whetstone 572 moves upward.

(Effect of Example) Now, the operation of the apparatus of this embodiment will be explained.

First, as shown in FIG. 1, a long metal member W (weighing about 2 tons) with a square cross section extending perpendicular to the axis O of the roller 1 is used. This long profile W has four sides α1
, α2, α3, α4.

Then, the long shape material W is placed on each roller 1.

In this state, each roller 1 is rotated in the direction of arrow S as shown in FIG. Then, due to the rotation of the roller 1, a thrust force is applied in the length direction of the elongated member W in the direction of the arrow shown in FIG. Therefore, the elongated material W is urged toward the polishing machine 7 side by the thrust, and the end face W10 in the length direction of the elongated material W is polished during the polishing process.
It is chamfered with a rotating grindstone 72 of 17. As shown in FIG. 1, the end face WIO of the elongated material W comes into contact with the stopper 8 facing the thrust force, thereby preventing the elongated material W from going too far due to the thrust force, thereby reducing the amount of polishing to the required amount. There is.

By the way, in the case of the above-mentioned chamfering, the elongated shape material W is rotated in the cross-sectional direction. This rotation will be explained below. That is, as shown in FIG.
The side α3 of the roller 1 faces the outer circumferential surface 11a of the roller 1, and the side α3
Hold the elongated member W in the direction in which 1 is facing upward. For convenience, this position is referred to as a reference position. Then, with the roller 1 stopped, the cylinder rod 76 of the cylinder device 75 is
As a result of the upward movement, the rotary whetstone 'EJ72 moves downward in the downward direction of the arrow, and the side α1 of the end face W10 in the length direction of the elongated shape vjW1 is polished by the rotary whetstone 72 of the polishing machine 7. When the polishing of the side α1 is completed, the rotary grindstone 72 is moved upward and separated from the elongated material W, and the roller 1 is rotated again.

As a result, the state shown in FIG. 4(A) is changed from the state shown in FIG.
As shown in B), rotate the roller 1 by 45 degrees from the reference position. Then, the first side 11G causes the side α of the elongated member W to be
3 is lifted in the direction of arrow A, and the elongated member W is slightly tilted.

Furthermore, when the roller 1 rotates and the rotation angle from the reference position reaches 90 degrees as shown in FIG. Lift it in the six directions of the arrow. Furthermore, as shown in FIG. 4(D), the roller 1
When the rotation angle from the reference position becomes 135 degrees, the first side 11g of the guide groove 11 lifts the side α3 of the elongated member W even further.

As shown in FIG. 4(E), when the roller 1 rotates and the rotation angle from the reference position reaches 180 degrees, the first guide groove
The side 11e further lifts the side α3 of the elongated member W, and the elongated member W is inclined at 45 degrees. Furthermore, as shown in FIG. 4(F), the roller 1 rotates and the rotation angle from the reference position is 225.
When the second side 11m of the guide groove 1 lowers the side α4 of the elongated member W. Furthermore, when the rotation angle of the roller 1 reaches 270 degrees as shown in FIG.
4 goes down even further. And the rotation angle of roller 1 is 315
At this point, the side α4 of the elongated member W faces the outer circumferential surface 11a of the roller 1. As a result, the long shape material W is rotated 90 degrees, and the side α4 becomes the bottom surface as shown in FIG. 4(H).
Side side α2 becomes the upper surface. Even while the long shape material W is being rotated in this way, the long shape material W is supported by being placed on the rail 5, and therefore the vertical position of the long shape material W is at a constant height. maintained in position.

As described above, as shown in FIG. 4(H), the roller 1 is stopped with the side α2 facing upward, and the elongated material W is stopped, and in this state, the cylinder device 75 The cylinder door 6 is moved upward and the rotary grindstone 72 is moved downward.
The side α2 of the elongated material W1 is polished by the rotary grindstone 72 of the polishing machine 7.

When the polishing of the side α2 is completed, the rotary grindstone 72 is moved upward and separated from the long shape material W, and the roller 1 is rotated again to rotate the long shape material W by 90 degrees in the same manner as described above.

In this way, by repeating the rotation of the roller 1, the stopping of the roller 1, and the downward movement of the rotary grindstone 72, the side α3 and the side α
4 in order, thereby chamfering the entire circumference of the end face WIO of the elongated member W.

In this embodiment, as is clear from FIGS. 4(A) to 4(B), the aforementioned boundary areas of corner λ1, corner λ2, corner λ3, corner λ4, side 11q, and side 11r are is a long profile W
The nozzle is the center of rotation, and as the elongated member W rotates, it moves little by little toward the right in the figure along the axis 10 of the roller 1. Therefore, the elongate section W is rotated on the roller 1, but remains substantially in a fixed position on the roller 1.

Incidentally, the elongated shaped member W in the state shown in FIG. 4(B) may be displaced to the left in the figure and returned to the central region in the direction of the axis 10 of the roller 1. In this case, move the V-holder whose top is open from below to the top of the elongated member W, lift the elongate member W with the V-receiver, and then move the elongate member W to the left in the figure. This can be done by moving the elongated material W to the center area of the roller 1 and returning it to the center area of the roller 1.

(Effects of the Example) In this example, when the roller 1 rotates, the elongated shape material W is rotated on the roller 1, but remains substantially at a fixed position on the roller 1. Therefore, it is advantageous in saving the installation space in which the device is installed, compared to the conventional device in which the traversal distance of the elongated material W is long.

In this embodiment, at the center of rotation of the elongated member W, the lowermost surface of the elongated member W is supported by the rail 5, and the receiver is supported by the rail 5.
Therefore, the lowermost surface of the elongated member W is raised above the bottom surface of the groove of the guide @ 11 of the roller 1. Therefore, the entire weight of the elongated member W does not act on the guide groove 1 of the roller 1. Therefore, the guide groove 11 of the roller is mainly used to rotate the elongated member W.

Therefore, the load acting on the roller is reduced to that extent, and the rotation of the elongated member W can be made smoother, and damage to the bottom surface of the guide groove 11 of the roller 1 can be prevented.

[Effect of the invention 1] According to the end face grinding @ device for a long shape of the present invention, the long shape can be rotated in its cross-sectional direction while maintaining the long shape in a substantially fixed position. The longitudinal end faces of the elongated material can be polished.

In addition, the height positioning member raises the lowest end of the elongated material above the bottom surface of the roller guide groove, reducing the load acting on the roller. Damage can be prevented.

[Brief explanation of drawings]

Figures 1 to 4 show an embodiment of the present invention, with Figure 1 being a side view of the device, Figure 2 being a side view of the roller, Figure 3 being a sectional view of the roller, and Figure 4 (A). ~ Figure 4 (H> is a cross-sectional view showing the state in which the elongated member rotates in the cross-sectional direction. In the figure, ] is a roller, ] ] is a guide groove, 14 is an opening, and 4 is a motor (driver). 5 indicates a rail (height positioning member), and 7 indicates a sharpening machine.

Claims (1)

[Claims] (1) A plurality of rotatable rollers that are arranged at a predetermined distance from each other in a direction in which the roller axes intersect with the length direction of the elongated shape, and have guide grooves extending a predetermined length in the circumferential direction on the outer peripheral surface; a drive device that rotates each of the rollers in synchronization in the same direction; a height positioning member that abuts and supports the lowermost end surface of the elongated member to regulate the vertical position of the lowermost end surface of the elongated member; A polishing machine is provided so as to be able to face the end surface in the length direction of the long shape that is biased by the rotation of the roller, and polishes the end surface in the length direction of the long shape, and the guide groove of the roller is , a cross section passing through the roller axis, forming a groove opening and comprising one side parallel to the roller axis, and a first side and a second side inclined with respect to the roller axis; The boundary area with the second side is approximately the center of rotation of the elongated material, and as the rotation angle of the roller increases, the first side pushes up the sides of the elongated material to form the elongated material. In order to be able to rotate the profile in the cross-sectional direction, the rising angle relative to the roller axis increases, and the second side has a smaller rising angle relative to the roller axis as the rotation angle of the roller increases, and the first side The boundary area between the roller and the second side is configured to shift along the roller axis, and while the elongated shape is maintained on the outer peripheral surface of the roller,
The long shape is rotated in the cross-sectional direction approximately around the boundary area between the first side and the second side, and the long shape is rotated while the long shape is stopped or rotated. An end face polishing device for an elongated material, characterized in that a polishing machine is used to polish the end face in the length direction of the long material.