JPH0567453U - Waveguide polisher - Google Patents

Abstract

(57) [Abstract] [Purpose] To improve the work efficiency and the quality of the waveguide at the installation site of the waveguide. A holder 106 having two surfaces orthogonal to a gantry 12 that can be carried is provided, and a tip end surface of a flange 110b of a waveguide 110 arranged in the holder 106 is brought into contact with a positioning arm 102. The waveguide main body 110a is fixed to the holder 106 by two planes orthogonal to each other and the clamps 122 and 132, and the liner mill 28 is moved orthogonally to the axis of the waveguide 110 to move the flange 11
The end surface of 0b is polished.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a waveguide polishing apparatus for polishing the flange end face of a waveguide, and particularly to a waveguide polishing device suitable for processing the flange end face when adjusting the length of the waveguide at the site of wireless construction. The present invention relates to a pipe polishing device.

[0002]

[Prior Art]

 The waveguide is installed in a building such as a wireless station to guide the transmitted and received microwaves to a predetermined location. In general, a plurality of waveguides each having a fixed length and provided with flanges at both ends are flange-connected to each other for piping.

However, in field work, the connection span of the waveguide may not match the waveguide length. In such a case, especially in a rectangular waveguide, disconnect the flange from the waveguide main body once, adjust the length, then weld and connect the flange again, set the proper length, and connect. ing. In this case, welding solder may exude to the flange surface, or the axis of the waveguide may not be orthogonal to the flange surface. If such a waveguide is connected, the function as a waveguide is impaired. Therefore, conventionally, at the installation site of the waveguide, the flange end face was polished by manual work using a hand file or a belt file, and the flange end face and the waveguide axis were corrected by removing solder and correcting distortion. I tried to make them orthogonal.

[0004]

[Problems to be solved by the device]

 However, in the above-mentioned polishing work of the flange end face using a hand file or a belt file, it is difficult to obtain a perpendicularity between the waveguide body axis and the flange end face, and it takes a long time to perform the work. Workability is poor. Moreover, the polishing work requires a high degree of skill, and there is a drawback that the finish varies depending on the worker and affects the performance of the waveguide. In addition, there is a risk of working because it relies on manual work, and there is also a problem that chips are scattered by polishing.

The present invention focuses on the above-mentioned conventional problems, and provides a waveguide polishing apparatus with high work safety, which can improve the work efficiency and the quality of the waveguide at the installation site of the waveguide. The purpose is to

[0006]

[Means for Solving the Problems]

 In order to achieve the above-mentioned object, a waveguide polishing apparatus according to the present invention comprises two orthogonal surfaces supported by a portable pedestal, and the two surfaces are arranged so as to face each other. A holder having a clamp that clamps the waveguide body in cooperation with the two surfaces; a positioning mechanism that is attached to the mount and contacts the flange tip end surface of the waveguide arranged in the holder; A rotary blade provided on the tip side of the flange for polishing the flange tip surface, a motor for rotating the rotary blade, and one of the holder and the rotary blade of the waveguide sandwiched between the holders. It is characterized in that it has a traveling table that moves orthogonally to the pipe axis and a traveling motor that travels the traveling table.

The positioning mechanism can be configured by a rotatable arm with which the front end surface of the flange abuts, a spring for rotating the arm, and a stopper for stopping the arm in a substantially upright position. When the moving table moves the rotary blade, the rotary table is equipped with a rotary blade and a motor, and an arm rotating plate for tilting the arm of the positioning mechanism is attached.

[0008]

[Action]

 In the present invention configured as described above, since the holder and the like are incorporated into the portable mount, it can be easily carried into a work site such as wireless construction. At the work site, for example, the flange tip end surface of the waveguide having a rectangular cross section is brought into contact with the positioning mechanism, and the two orthogonal surfaces of the waveguide main body are brought into close contact with the two orthogonal surfaces of the holder. , The waveguide is clamped and fixed by the two surfaces and the clamp. Then, the rotary blade is driven to rotate by a motor, and the traveling table is driven to move the holder fixed to the waveguide or the rotary blade orthogonal to the axis of the waveguide, and the rotary blade causes the flange tip surface to move. By polishing, the front end surface of the flange can be made exactly perpendicular to the waveguide axis.

Therefore, the operator only needs to insert a switch for traveling the traveling table while fixing the waveguide to the holder, and greatly improves the efficiency of the flange polishing work at the waveguide piping site. be able to. Moreover, since the operator only has to fix the waveguide to the holder, no skilled technique is required, and the finished product does not vary and a high quality waveguide can be obtained at all times.

When the rotary blade is moved by the moving table, the positioning mechanism includes a rotatable arm with which the end face of the flange abuts, a spring for rotating the arm, and a stopper for stopping the arm in a substantially upright position. The positioning mechanism does not interfere with the polishing by tilting the arm that is in contact with the flange end surface by the arm rotation plate provided on the moving table. When the holder is moved by the moving table, the positioning mechanism may be, for example, an L-shaped arm fixedly attached to the mount, and a member for tilting the arm is not required.

[0011]

【Example】

 A preferred embodiment of a waveguide polishing apparatus according to the present invention will be described in detail with reference to the accompanying drawings. FIG. 1 is a plan view of a waveguide polishing apparatus according to an embodiment.

In FIG. 1, the waveguide polishing apparatus 10 has a size such that the pedestal 12 can be carried, and is formed in a rectangular box shape. An intermediate plate 18 is fixed between the side plates 14 and 16 in the up-down direction (Y direction) of FIG. 1, and the intermediate plate 18 moves the inside of the box-shaped mount 12 inside the fixed part region 20 and the movable part. The area 22 is divided.

An X ball screw shaft 24 is provided at an intermediate portion of the movable portion region 22 in the Y direction so as to be orthogonal to the Y direction, that is, extend in the X direction. The X ball screw shaft 24 is rotationally driven by a forward / reverse rotatable X-direction moving motor 26 arranged in the fixed portion region 20, and moves a liner mill 28, which is a rotary blade, in the X-direction, as will be described later in detail. Let me In the embodiment, when the liner mill 28 moves to the left in FIG. 1, the forward movement in the X direction is performed, and when the liner mill 28 moves to the right in the X direction, the backward movement is performed in the X direction. The mill 28 moves to the left in FIG.

The X ball screw shaft 24 has one end rotatably supported by a side plate 30 parallel to the intermediate plate 18 via a bracket 31 and the other end connected to a helical coupling 32. A ring 32 is fixed to an output shaft 38 of a gear head 36 attached to the X-direction moving motor 26 via an intermediate gear head 34, which is eccentric to the X-direction moving motor 26 (see FIG. 2).

On the other hand, traveling rails 40, 42 in the X direction are arranged on both sides of the X ball screw shaft 24 in parallel with the X ball screw shaft 24. Each of the traveling rails 40 and 42 has one end fixed to the intermediate plate 18 and the other end fixed to the side plate 30. As shown in FIG. 3, each of the traveling rails 40 and 42 penetrates the ball bushes 44 and 46, and the bush receivers 48 and 50 to which the ball bushes 44 and 46 are attached are arranged in the X direction. To do.

An X-direction traveling table 52 is fixed to the upper portions of the bush receivers 48 and 50. A screw receiver 54 is attached to the lower center of the traveling table 52 in the Y direction. A ball screw 56, which is screwed with the X ball screw shaft 24, is attached to the screw receiver 54. The ball screw 56 moves in the X direction by the rotation of the X ball screw shaft 24, and the traveling table 52 is moved to the position shown in FIG. The intermediate plate 18 is moved back and forth as indicated by an arrow 58.

A support plate 60 is erected at the end of the bush receiver 50 on the side plate 16 side. One end of a Y ball screw shaft 62 is rotatably attached to the center of the support plate 60 in the X direction, and Y direction traveling rails 64 are arranged on both sides of the Y ball screw shaft 62 in parallel with the Y ball screw shaft 62. , 66 has one end fixed. The other ends of the traveling rails 64, 66 are fixed to a support plate 68 standing on the X-direction traveling table 52. The support plate 68 also supports a Y-direction movement motor 70 that can rotate the liner mill 28 in the Y direction and can rotate in the forward and reverse directions. In the embodiment, when the liner mill 28 moves downward in FIG. 1, the forward movement in the Y direction is performed, and when the liner mill 28 moves upward in the Y direction, the backward movement is performed in the Y direction. Moves downward in FIG.

A gear head 72 for eccentricizing the output shaft is attached to the Y-direction moving motor 70, and the tip end surface of the gear head 72 is fixed to a substantially Ω-shaped bracket 72 having a shaft hole. The bracket 74 is attached to a support plate 68 having a "concave" shape with a notch formed in the center for inserting the protrusion of the bracket 74. A helical coupling 78 is fixed to the output shaft 76 of the gear head 72, and the other end of the Y ball screw shaft 62 is connected to the helical coupling 78.

On the other hand, a ball screw 80 is screwed onto the Y ball screw shaft 62. The ball screw 80 is attached to the bush receiver 82. The bush receiver 82 has a block shape extending in the X direction, and a Y-direction traveling table 86 is fixed to the upper part together with the bush receiver 84, and is connected to the bush receiver 84 via the traveling table 86. Ball bushes 88 and 90, through which the Y-direction traveling rails 64 and 66 penetrate, are attached to the bush receivers 82 and 84 (see FIG. 1).

A mill drive motor 92 is mounted on the Y-direction traveling table 86. A gear head 94 for eccentricizing the output shaft is attached to the mill drive motor 92, and the mill drive motor 92 is provided via the gear head 94 to the supports 96, 98 provided at both ends of the traveling table 86 in the Y direction. It is fixed to. The liner mill 28 is replaceably attached to the output shaft 100 of the gear head 94 (see FIG. 2), and the Y-direction traveling table 86 travels in the Y direction, so that the liner mill 28 moves in the direction indicated by the arrow in FIG. Move like 99. Below the liner mill 28, an arm rotating plate 104 that is attached to the Y-direction traveling table 86 and tilts a positioning arm 102 of a positioning mechanism described later in detail is arranged. The arm rotating plate 104 is slightly tilted upward so that both ends of the arm rotating plate 104 can be easily tilted to the positioning arm 102.

A holder 106 is provided in the fixed portion region 20 partitioned by the intermediate plate 18. The holder 106 is provided with a base 112 and a wall plate 116 that are bridged between the intermediate plate 18 and the side plate 108, and the wall plate 116 is arranged on one end side in the Y direction of the base 112 on which the waveguide 110 is placed and is guided. The sandwiching surface 114 for closely contacting the wave tube main body 110a is orthogonal to the upper surface of the base 112 in the Y direction (see FIG. 3). Therefore, in the waveguide 110, when the waveguide main body 110a is arranged on the base 112 and the two orthogonal surfaces of the waveguide main body 110a are in close contact with the upper surface of the base 112 and the sandwiching surface 114, the axis line becomes the X direction. They coincide with each other and are orthogonal to the Y direction.

On the other hand, a mounting plate 118 is provided in parallel with the sandwiching surface 114 on the opposite side of the wall plate 116 of the base 110, that is, at a position facing the sandwiching surface 114. The mounting plate 118 has a pair of screw holes formed therein, and a screw rod 120 is screwed into the screw holes. The screw rod 120 has a clamp 122 that presses the main body 110a of the waveguide 110 against the sandwiching surface 114 and that clamps the waveguide main body 110a in cooperation with the sandwiching surface 114 at the tip on the base 112 side. A knob 124 for rotating the screw rod 120 to move the clamp 122 forward and backward is attached to the rear end (see FIG. 1). Further, a mounting plate 128, which extends above the base 112 in the shape of an eaves, is fixed to the upper portion of the wall plate 116 in parallel with the upper surface of the base 112. Similar to the mounting plate 118, a pair of screw rods 134 provided with a clamp 130 and a knob 132 are screwed to the mounting plate 128. By operating the knob 132, the clamp 130 is advanced and retracted, and the clamp 130 and The waveguide main body 110a can be sandwiched and fixed with the upper surface of the base 112.

Below the movable portion region 22 side of the holder 106, there is provided a positioning mechanism 140 that determines the amount of protrusion of the waveguide 110 from the holder 106, that is, the end face position of the flange 110b of the waveguide 110. (See FIGS. 4 and 5). The positioning mechanism 140 includes a positioning arm 102 that abuts the flange tip surface of the waveguide 110.

The positioning arm 102 is formed in a substantially flag shape including an arm portion 142 and a wide stopper portion 144 formed at the tip of the arm portion 142, and has a crank-shaped cross section, as shown in FIG. It is rotatably attached to the intermediate plate 18 as indicated by an arrow 145. The stopper portion 144 is formed such that the side facing the arm rotating plate 104 is gradually narrowed toward the upper end side, and the arm rotating plate 104 is in contact with the stopper portion 144. The positioning arm 102 can be moved smoothly while rotating, and the tilted arm rotating plate 104 does not come into contact with the X-direction traveling rail 42.

The positioning arm 102 is attached so that the stopper portion 144 forms a gap between the stopper portion 144 and the intermediate plate 18, in which the flange 110b of the waveguide 110 can be arranged. That is, the positioning arm 102 is arranged so that the arm portion 142 contacts the intermediate plate 18, and the intermediate portion of the arm portion 142 is rotatably attached to the intermediate plate 18 by the pivot pin 146. .. A spring rod 148 is screwed to the lower end of the arm 142, and a spring 152 is stretched between the spring rod 148 and the spring rod 150 screwed to the intermediate plate 18. When the spring rod 150 is attached near the lower end of the intermediate plate 18, the spring rod 150 is located closer to the X-direction traveling rail 42 side than the pivot pin 146. Therefore, the spring 152 applies a spring force to the positioning arm 102 so as to rotate the positioning arm 102 in the clockwise direction in FIG. 4 at all times.

The intermediate plate 18 is provided with a stopper 154 that forms a part of the positioning mechanism 140 and stops the positioning arm 102 in a substantially upright position. The stopper 154 is formed in the shape of a shoe having a guide protrusion at its end, and the width of the tip end of the guide protrusion is narrower than that of the base end side, so that the arm portion 142 of the positioning arm 102 can be easily and surely stopped. It can be received by the main body.

The operation of the embodiment configured as described above is as follows. In the initial state, the Y-direction traveling table 52, that is, the liner mill 28 is located at the position shown in FIG. 1 or slightly to the right of the position shown in FIG.

First, the waveguide 110 is placed on the base 112 of the holder 106. At this time, the flange 110b of the waveguide 110 is projected from the base 112 toward the movable portion region 22 side, the flange end surface is brought into contact with the surface of the stopper portion 144 of the positioning mechanism 140, and the waveguide main body 110a is orthogonal. These two surfaces are brought into close contact with the upper surface of the base 112 and the sandwiching surface 114 of the wall plate 116. Then, the knobs 124 and 132 are operated with the tip end surface of the flange 110b in contact with the stopper portion 144, the screw rods 120 and 134 are rotated, and the clamps 122 and 132 are advanced to move the waveguide body 110a. The other two surfaces are pressed to clamp the waveguide 110 by the clamps 122 and 132, the clamping surface 114, and the upper surface of the base 112. As a result, the waveguide 110 is fixed to the holder 106 in a state where the axis of the waveguide body 110a coincides with the X direction and is orthogonal to the Y direction.

After fixing the waveguide 110 to the holder 106, a polishing start button (not shown) is pressed. As a result, a motor drive control device (not shown) operates to rotationally drive the mill drive motor 92 mounted on the Y-direction traveling table 86, rotate the liner mill 28, and rotate the X-direction movement motor 26 in the forward direction. Then, the X ball screw shaft 24 is rotated. Therefore, the ball screw 56 screwed to the X ball screw shaft 24 moves leftward in FIG. 1 along the X ball screw shaft 24, and the X direction traveling table 52 is moved leftward in FIG. 1 via the screw receiver 54. Drive to. Therefore, since the liner mill 28 is mounted on the Y-direction traveling table 86 provided on the X-direction traveling table 52 via the mill drive motor 92, the liner mill 28 is integrated with the X-direction traveling table 52 on the waveguide 110 side. To move forward.

When the liner mill 28 moves to the position shown in FIG. 1, that is, when the tip of the liner mill 28 moves slightly to the waveguide 110 side from the tip of the flange 110b, limit switches and optical sensors not shown The motor drive controller stops driving the X-direction movement motor 26 and causes the Y-direction movement motor 70 to rotate normally. As a result, the Y ball screw shaft 62 rotates, and the ball screw 80 screwed on the Y ball screw shaft 62 is screwed downward along the Y ball screw shaft 62 in FIG. 1. Therefore, the Y-direction traveling table 86 equipped with the mill drive motor 92 travels in the Y-direction integrally with the bush receiver 82 to which the ball screw 80 is attached, and advances the liner mill 28 toward the flange 110b.

When the liner mill 28 advances in the Y direction toward the flange 110 b, the side portion of the arm rotating plate 104 having a dish-shaped cross section disposed below the liner mill 28 contacts the stopper portion 144 of the positioning arm 102. .. Then, the arm rotating plate 104 rotates the positioning arm 102 in the counterclockwise direction as indicated by an arrow 145 in FIG. 4 as the liner mill 28 moves forward, tilts the positioning arm 102, and performs polishing by the liner mill 28. Try not to get in the way. Then, the liner mill 28 polishes the tip end surface of the flange 110b as the Y-direction traveling table 86 advances in the Y direction so that the end surface of the flange 110b is orthogonal to the axis of the waveguide body 110a.

When the liner mill 28 moves further forward and reaches the position shown by the three-dot chain line in FIG. 1, a sensor such as a limit switch (not shown) operates, and the motor drive control device moves in the Y direction. The moving motor 26 is reversed and the liner mill 28 is retracted to the initial position. When the liner mill 28 retracts, the positioning arm 102 of the positioning mechanism 140, which was at the position indicated by the chain double-dashed line in FIG. 4, is rotated clockwise by the spring force of the spring 152, and the arm 142 is received by the stopper 154. , Return to the upright position shown by the solid line in FIG.

After that, the operator removes the waveguide 110 that has just been polished from the holder 106, attaches a new waveguide to the holder 106 in the same manner as described above, and presses a polishing start button (not shown) to create a new one. Polishing of the flange end face of the waveguide is performed in the same manner as above.

As described above, according to the waveguide polishing apparatus 10 of the embodiment, since the holder 106 and the drive unit of the liner mill 28 are incorporated in the gantry 12 that can be carried, the waveguide 110 such as a radio station can be installed. The waveguide polishing apparatus 10 can be easily brought to the installation site, and the operator can fix the waveguide 110 to the holder 106 while bringing the flange 110b of the waveguide 110 into contact with the positioning arm 102 and press the operation button. The end face of the flange 110b can be polished orthogonally to the axis of the waveguide body 110a, and the efficiency of the polishing work of the flange 110b at the work site can be greatly improved. However, since the worker only fixes the waveguide 110 to the holder 106, no skilled technique is required, the polishing finish does not vary, and a high-quality waveguide body is always obtained. You can

Further, in the above-described embodiment, since the liner mill 28 can be moved two-dimensionally by the X-direction traveling table 52 and the Y-direction traveling table 52, the polishing amount can be adjusted freely. Since the holder 106 is configured so that the clamps 122 and 130 can move forward and backward with respect to the base 112 and the wall plate 116, for example, assuming that the wave guide tube 110 is for 4 GHz, FIG. 1, FIG. The waveguide 210 for 11 GHz indicated by the one-dot chain line in FIG. 4 can be applied, and the flange end face of the waveguide of various sizes can be polished.

In the above embodiment, the case where the liner mill 28 can move in a plane has been described. However, the liner mill 28 has a fixed position in the X direction and can move only in the Y direction. You may comprise. Further, in this case, when the liner mill 28 is fixed and the holder 106 is moved in the Y direction, the positioning arm 102 of the positioning mechanism 140 can be fixed, and the structure of the positioning mechanism 140 is simplified. Since the arm rotating plate 104 is not necessary, the device can be simplified. Further, in the above embodiment, the case where the position of the liner mill 28 is detected by the limit switch or the optical sensor has been described, but the position of the liner mill 28 may be obtained using a linear scale. Further, a shielding cover can be attached so as to cover the polishing work portion by the liner mill 28 so that the cutting chips are not scattered to the outside.

[0037]

[Effect of the device]

 As described above, according to the present invention, since the holder, the rotary blade, and the like are provided on the portable frame, the tip end surface of the flange of the waveguide is brought into contact with the positioning mechanism and the waveguide is guided. Fix the two orthogonal surfaces of the tube body in close contact with the two orthogonal surfaces of the holder, and move the holder or rotary blade with the waveguide tube fixed orthogonally to the axis of the waveguide. By polishing, the flange tip surface can be easily and accurately made orthogonal to the waveguide axis at the work site, which greatly improves the efficiency of the waveguide installation work at the work site, and also eliminates variations among workers. It can be eliminated to improve the quality of the waveguide.

Further, since the rotatable arm of the positioning mechanism with which the tip end surface of the flange abuts is tilted by the arm rotating plate provided on the traveling table on which the rotary blade is mounted, the flange is rotated by the rotary blade. When polishing, the positioning arm does not interfere with the polishing.

[Brief description of drawings]

FIG. 1 is a plan view of a waveguide polishing apparatus according to an embodiment of the present invention.

FIG. 2 is a sectional view taken along the line AA of FIG.

FIG. 3 is a sectional view taken along line BB of FIG.

FIG. 4 is an explanatory diagram of a positioning mechanism according to the embodiment.

FIG. 5 is a sectional view of the positioning mechanism according to the embodiment.

[Explanation of symbols]

 10 Waveguide Polishing Device 12 Portable Platform 24 X Ball Screw Shaft 24 26 X Direction Moving Motor 28 Rotating Blade (Liner Mill) 52 X Direction Traveling Table 62 Y Ball Screw Shaft 70 Y Direction Moving Motor 86 Y Direction Traveling Table 92 Mill Drive Motor 102 Positioning Arm 104 Arm Rotating Plate 106 Holder 110, 210 Waveguide 110a Waveguide Main Body 110b Flange 140 Positioning Mechanism 148 Spring

Claims (2)

[Scope of utility model registration request] 1. A clamp provided with two orthogonal surfaces supported by a portable pedestal and arranged to face each of these two surfaces and clamping the waveguide body in cooperation with the two surfaces. A holder, a positioning mechanism that is attached to the gantry and contacts the flange tip surface of the waveguide arranged in the holder, and a rotary blade that is provided on the tip side of the flange and polishes the flange tip surface, A motor for rotating a rotary blade, a traveling table for moving either one of the holder or the rotary blade orthogonal to the tube axis of the waveguide sandwiched by the holder, and a traveling motor for traveling the traveling table. A waveguide polishing apparatus comprising: 2. The moving mechanism comprises: a rotatable arm with which the front end surface of the flange abuts; a spring for rotating the arm; and a stopper for stopping the arm in a substantially upright position. The waveguide polishing apparatus according to claim 1, wherein the rotary blade and the motor are mounted, and an arm rotating plate that tilts the arm of the positioning mechanism is attached.