JP2648676B2 - Extension material polishing device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for polishing the inner and outer surfaces of an extension such as a round bar or a pipe, and more particularly to a technique capable of automatically polishing various bent extensions by simple adjustment.

[0002]

2. Description of the Related Art Conventional extension member polishing apparatuses include a mechanical polishing method using a polishing brush or a buff or an indirect polishing method in which a magnetic material is rotated and driven by a magnetic field to perform polishing. However, most of these are for straight rods or straight pipes and cannot be used to polish a bent extension material. When polishing a bent rod or a bent pipe, they are often polished manually. When grinding curved materials using tools, specially shaped or fixed shapes can be supplemented with jigs that conform to the bent shape, or using equipment that fits only the specified shape. It is about to do.

[0003]

At present, as the extension material,
Some have various curvatures, some have bent parts and straight parts, some have a curvature changed in the axial direction, etc., and the demands for polishing these extension materials of various shapes little by little have become very high. ing. Therefore, even if a jig or device corresponding to a certain shape is manufactured rather than a complete manual operation and the aim is to improve the processing efficiency, it takes time and money to manufacture the jig and device, and low-cost and quick processing is required. The inability to do so is one of the problems. In addition, there is a problem that an extension member has a complicated curve whose axis is drawn, and in this case, it is impossible to manufacture an automatic polishing apparatus itself. Accordingly, the present invention is to solve these problems, and an object of the present invention is to provide a technique capable of automatically polishing extension members having various shapes and complicated shapes with a single structure.

[0004]

Means taken by the present invention to solve the above-mentioned problems are a plurality of guide means arranged in tandem along a guide direction on a predetermined surface, and each of the guide means is arranged in a guide direction. An on-plane position adjusting means which is movable in the other direction on the predetermined surface which is substantially perpendicular to the surface, and which is disposed around the extension as the workpiece and rotationally drives the abrasive relative to the extension. A polishing drive unit, a guided member that supports the polishing drive unit and is guided and supported by the guide member, and a driving unit that moves the guided member along the guide direction are provided. In this case, the guide member is constituted by a pair of guide rollers facing each other at an interval in the other direction, and the on-surface position adjusting means is fixed on the predetermined surface so that the guide roller can slide in the other direction. It is preferable that the guide member is constituted by a supporting member to be attached, and the guided member is fitted and supported from both sides by the pair of guide rollers. In addition, it is desirable to provide a normal position adjusting means for substantially moving the guide member in the normal direction of the predetermined surface. Further, it is effective to provide an abrasive supply means for supplying a predetermined amount of an abrasive composed of a fluid, a powder, or a granular material from one end side of the tube.

[0005]

According to this means, if the plurality of guide members are positioned by the on-surface position adjusting means in an arrangement conforming to the shape of the extension member, the guided member is guided by the drive means in accordance with the arrangement of the plurality of guide members, The polishing portion by the polishing driving unit can be moved along the shape of the extension member. In particular, if the guided member is fitted and supported from both sides by a pair of guide rollers, the stability of the polishing drive unit at the time of movement is improved, and at the time of positioning of the guide roller, an extension member is applied to the guide roller from outside. Positioning can be performed while making contact. Also, if the position adjustment means on the normal line is provided, the bent shape of the extension material does not follow the predetermined surface,
It is possible to cope with a case in which the vehicle is bent out of a predetermined plane. Further, by providing the abrasive supply means, polishing can be performed while supplying or circulating the abrasive on the inner surface of the tube.

[0006]

Next, an embodiment of the present invention will be described with reference to the drawings. As shown in FIG. 1, the present embodiment schematically includes a guide section 2, a guided section 3, a drive section 4, and an abrasive supply section 5.
The guide part 2 includes a support block 10 fixed at equal intervals on the surface side of the frame 1 erected on the floor, and each support block 1.
0, a pair of support cylinders 18 slidably mounted in the horizontal direction on both upper and lower surfaces, and a guide roller 30 rotatably mounted on the top of each support cylinder 18. A pair of long shafts 32 are respectively attached to the upper surface side and the lower surface side of the block 10, and the upper and lower ends of the non-magnetic tube 6 are fixedly attached to a mounting member 34 extending between the long shafts 32. A limit switch 36 is mounted on the mounting member 34.

FIG. 2 is a longitudinal sectional view showing a part of the guide portion in an enlarged manner. The guide recesses 14 extending in the horizontal direction are provided on both side surfaces of the support block 10 fixed to the frame 1 by bolts 12.
Are formed, and the mounting plate 16 is fitted therein. The support cylinder 18 is fixed to the support block 10 by screwing two bolts 20 to the mounting plate 16, and the two bolts 2
When 0 is loosened, the support cylinder 18 and the mounting plate 16 can slide along the guide recess 14 (in the direction perpendicular to the plane of the drawing). An elevating cylinder 22 having a long hole 26 on the side surface is fitted into the upper part of the support cylinder 18, and is fixed by a bolt 24 penetrating the long hole 26. And when you loosen the bolt 24,
The elevating cylinder 22 can be raised and lowered in the vertical direction. A shaft 28 is fixed to the upper surface of the elevating cylinder 22,
A guide roller 30 having a guide groove 30a is rotatably mounted on the shaft 28.

The guided portion 3 comprises a guided plate 38 whose end face facing the guide roller 30 is fitted and supported, and the guided plate 3
8, a motor 42 fixed on a motor base 40 attached via a support, and a support frame 4 fixed to a guided plate 38.
The polishing ring 50 is rotatably attached to the motor 8 and is rotatably driven via a pulley 44 and two drive belts 46 directly connected to a drive shaft of a motor 42. And a pair of holding rollers 54 fixed to each other. As shown in FIG. 3, the polishing ring 50 penetrates the non-magnetic tube 6, and the holding roller 54 is fixed so as to be movable in the radial direction with respect to the mounting shaft 52 so as to be adaptable to the diameter of the non-magnetic tube 6. Supports the non-magnetic tube 6 from both sides, so that the non-magnetic tube 6 properly penetrates the polishing ring 50.
Position, i.e., the center of the polishing ring 50, are always to be held. The holding roller 54 has the above length.
Polish the non-magnetic tube 6 together with the shaft 32 and the mounting member 34.
Holding means for holding the ring 50 at a position where it can be properly penetrated.
Has formed. A pair of magnets A and B, whose opposite poles face inward, are attached to the inner surface of the polishing ring 50, and the rotation of the polishing ring 50 drives a magnetic tool or magnetic abrasive grains in the tube to rotate.

The drive section 4 mounts a drive chain 56 mounted on the guided plate 38, a motor 60 for moving the drive chain 56 up and down by a sprocket 58, and a mount 62 for the motor 60 so as to be able to move up and down on the frame 1. The linear slider 64 and the mounting table 62 are linked with the link 66,
And a motor 70 that reciprocates in the vertical direction through the motor 8. The drive chain 56 passes through the opening of the frame 1 and is drawn to the back side of the frame 1, and the other end is attached to the weight 74 via the reel 72. However, the drive chain 56 may be made to go around the front and back of the frame 1 and the other end may be attached to the lower end of the guided plate 38. The abrasive supply unit 5 has an abrasive container 76 attached to the upper end of the frame 1, a tube 78 connected to the bottom of the abrasive container 76 as an inlet tube, and a tube 82 connected to the upper end of the non-magnetic tube 6. And a waste liquid container 84 disposed below the lower end of the non-magnetic tube 6. The abrasive supply section 5 may have the above-described configuration when the frame 1 is erected or inclined as in the present embodiment, but forcibly supplies the abrasive when the frame is installed horizontally. A pumping mechanism can be attached. Further, a pump for pumping the abrasive from the waste liquid container 84 to the abrasive container 76 can be provided to circulate the abrasive.

In the present embodiment, as shown in FIG. 4, the guided plate 38 can be moved up and down by positioning the guide rollers 30 arranged in two rows in accordance with the bending of the non-magnetic tube 6. The position of the guide roller 30 is adjusted by adjusting the position of the support cylinder 18 on one side while the non-magnetic tube 6 is in contact with the guide roller 30 on one side, as shown by the dashed line in FIG. The position of the other support cylinder 18 is adjusted while moving. If the non-magnetic tube 6 is also bent in the axial direction of the support tube 18, it can be dealt with by loosening the bolt 24 shown in FIG. Since the rounded portions 38a are formed at the four corners of the guided plate 38, the curved portions 38a can smoothly follow a certain degree of bending. Here, a pair of support cylinders 18 and a guide roller 30 attached to one side surface of each support block 10 can be connected to each other so that the position adjustment can be performed only once. Instead, use a T-shaped member,
By attaching a pair of L-shaped members to the back surface of the guided plate 38, it is sufficient to arrange the guiding members in a line in a row below the center of the guided plate 38.

In this embodiment, while the abrasive containing magnetic abrasive grains is supplied into the non-magnetic tube 6 at a fixed or fixed interval by the electromagnetic valve 80, the non-magnetic tube 6 is rotated by the magnet attached to the rotating polishing ring 50. While rotating the abrasive on the inner surface, the guided part 3 is moved by the motor 60 and the motor 70 in a state in which the vertical movement between the upper and lower limit switches 36 and the reciprocating motion of a predetermined amplitude are superimposed, thereby polishing the polishing part. By scanning, the inner surface of the tube is polished smoothly and uniformly. As the abrasive, magnetic particles or magnetic powder itself or a dispersion of these in a liquid containing abrasive particles is used. Also,
In some cases, a magnetic polishing tool in which the surface of a magnetic material or a magnet is coated with a polishing cloth is used. As polishing conditions, for example, 1
Once every 0 minute, the solenoid valve 80 is opened to supply 10 cc of the abrasive, and two cycles are performed by changing the particle size of the abrasive with about 120 minutes as one cycle.

Here, instead of the polishing ring 50, FIG.
Various polishing rings 50a to 50a shown in (a) to (d)
0f can also be used. 50a is for polishing the inner surface of the tube with the magnetic abrasive grains 90; 50b is for polishing the inner surface of the tube with the magnetic polishing tool 91; 50c is for polishing the outer surface of the tube or rod with the brush 92;
"e" is for polishing the inner and outer surfaces with the magnetic polishing tool 91 and the magnetic abrasive grains 90, and "50f" is for polishing the inner and outer surfaces with the magnetic polishing tool 91 and the brush 92. In FIG. 5, 93 is a magnet, and 94 is a balance weight. Further, as the configuration of the polishing drive unit, in addition to the mode of rotating each of the polishing rings, a rotating magnetic field forming device that forms a rotating magnetic field by a plurality of electromagnetic coils, a mechanism for rotating a brush or a buff around an extension material, an extension Such as a mechanism that rotates the material around its axis
Various examples of relatively rotational polishing of the extension material are conceivable.

According to this embodiment, variously bent rods or pipes, such as those having an extremely large radius of curvature, those having a meandering intricately, those having both bent portions and straight portions, can be polished and directly bent. Polishing of rods and straight pipes is also possible, and it can flexibly respond to changes in the diameter of rods and pipes. The adjustment work for adapting the arrangement of the guide rollers to these various elongated member shapes is also very easy, and particularly in the current situation where there is a strong demand for multi-product small-lot processing, a great effect is obtained in terms of processing time and processing cost. Things.

[0014]

As described above, according to the present invention, a plurality of guide members are arranged in tandem in one direction, the position adjusting means for changing the arrangement of the guide members is provided, and the guided members guided by the guide members are provided. Since the present invention is characterized by having the attached polishing drive unit, the following effects can be obtained. The inner and outer surfaces of the variously bent extension members can be automatically polished only by a simple adjustment operation. The stability of the polishing driving member can be ensured, and the positioning of the guide roller can be easily performed only by applying the extension member from the outside. Even when the bent shape of the extension material is out of the predetermined plane, the polishing drive unit can move along the shape. Since the polishing agent can be automatically supplied to the inner surface of the tube, the polishing can be efficiently performed by supplying or circulating the polishing agent.

[Brief description of the drawings]

FIG. 1 is a side view showing a structure of an embodiment of an extension member polishing apparatus according to the present invention.

FIG. 2 is an enlarged vertical sectional view showing a partial structure of a guide section of the embodiment.

FIG. 3 is a bottom view showing the structure of the guided portion of the embodiment.

FIG. 4 is an explanatory diagram for explaining an adjustment operation and an operation state of the embodiment.

FIGS. 5A to 5F are schematic views each showing another embodiment of the polishing ring.

[Description of Signs] 1 Frame 2 Guide 3 Guided 4 Drive 5 Abrasive supply 6 Non-magnetic tube 10 Support block 18 Support cylinder 30 Guide roller 38 Guided plates 42, 60, 70 Motor 46 Pulley 50, 50a , 50b, 50c, 50d, 50e, 50
f Polishing ring 54 Holding roller 56 Drive chain 66 Link 76 Abrasive container 80 Solenoid valve A, B Magnet

Claims (4)

(57) [Claims] 1. A plurality of guide members arranged in tandem along a guide direction on a predetermined surface, and each of the guide members is movable in another direction on the predetermined surface substantially perpendicular to the guide direction. An on-surface position adjusting means, a polishing drive unit disposed around the extension material to be polished and driving the abrasive to rotate with respect to the extension material, and a polishing drive unit which supports the polishing drive unit and is guided by the guide member. a guide member, the extension member polishing apparatus is characterized in that a driving means for moving along the guide direction the guided member. 2. The guide member according to claim 1, wherein the guide member is a pair of guide rollers facing each other with an interval in the other direction, and the on-surface position adjusting means is fixed on the predetermined surface, and An extension member polishing apparatus comprising a support member slidably mounted in another direction, wherein the pair of guide rollers fit and support the guided member from both sides. 3. An extension material polishing device according to claim 1, further comprising a normal position adjusting means for substantially moving said guide member in a normal direction of said predetermined surface. apparatus. 4. A polishing machine according to claim 1, further comprising an abrasive supply means for supplying a predetermined amount of an abrasive comprising a fluid, a powder, or a granular material from one end of the tube. An extension material polishing apparatus, characterized in that: