JP2015121518A - Track device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a track device capable of easily adjusting the tilt of a track and improving track attitude accuracy.SOLUTION: A track device 4 installed on an outer circumference of a pipe 1, includes: a fixed ring 16 of an annular shape fixed to the outer circumference of the pipe 1; a track 3 arranged to be distanced from this fixed ring 16 in an axial direction of the pipe 1; and a tilt adjustment mechanism 17 that can adjust a tilt of the track 3 with respect to the fixed ring 16. The tilt adjustment mechanism 17 includes four tilt adjustment screw holes 27 formed to penetrate the fixed ring 16 so as to be distanced from one another in the axial direction; and four tilt adjustment screws 26 each having one end mated with one tilt adjustment screw hole 27 and the other end rotatably connected to the track 3.

Description

  The present invention relates to a track device used in an inspection device, a welding device, or the like.

  For example, an ultrasonic inspection apparatus for inspecting a pipe and its welded part is known (see, for example, Patent Documents 1 and 2). The ultrasonic inspection apparatuses of Patent Documents 1 and 2 are installed on the outer peripheral side of a pipe and have a circular orbit, and a scan that is attached to the orbit and scans the ultrasonic probe along the surface of the pipe. Device.

  The scanning device includes a circumferential scanning mechanism that moves the first moving body along the trajectory (that is, in the circumferential direction of the pipe) and an arm provided on the first moving body (that is, in the axial direction of the pipe). ) An axial scanning mechanism that moves the second moving body, and a probe holding unit that is supported by the second moving body via a spring and holds the ultrasonic probe.

  Then, while moving the ultrasonic probe in the axial direction and the circumferential direction of the pipe, ultrasonic waves are transmitted from the ultrasonic probe to the inside of the pipe, and the ultrasonic waves reflected by the defects are detected by the ultrasonic probe. Receive. Thereby, a defect etc. are detected.

  The track device of Patent Document 1 includes an annular track disposed on the outer peripheral side of the pipe, and a plurality of fittings (fixing members) provided on the radially inner side of the track via springs. And a contact tool is made to contact | abut to the outer peripheral surface of piping, and a track | orbit is fixed to the outer peripheral side of piping.

  In the track device of Patent Document 2, an annular track disposed on the outer peripheral side of the pipe, an annular guide ring disposed on the outer peripheral side of the pipe, and the track and the guide ring are separated in the axial direction of the pipe. And a plurality of pipes connected concentrically. Also, three or four first screw holes formed so as to penetrate the track in the radial direction so as to be spaced apart from each other in the circumferential direction, and are screwed into these first screw holes and project inward in the radial direction of the track. Three first fixing bolts (fixing members), three second screw holes formed in the guide ring so as to penetrate in the radial direction and spaced apart from each other in the circumferential direction, and screwed into these second screw holes, It has three second fixing bolts (fixing members) protruding inward in the radial direction of the guide ring. And a 1st fixing bolt and a 2nd fixing bolt are made to contact | abut on the outer peripheral surface of piping, and a track | orbit and a guide ring are fixed to the outer peripheral side of piping.

Japanese Patent Laid-Open No. 11-160295 (see FIGS. 1 and 2) JP 2007-132726 A

  The above prior art has room for improvement as follows. In the track devices of Patent Documents 1 and 2, the track is fixed to the outer peripheral side of the pipe via a plurality of fixing members that can move in the radial direction of the pipe. Therefore, there is a limit in reducing the inclination of the track (specifically, for example, the tilt of the track with respect to the vertical plane perpendicular to the central axis of the pipe or the tilt of the track with respect to the weld line of the pipe). In addition, although the track device of Patent Document 2 can reduce the inclination of the track as compared with the track device of Patent Document 1, it is difficult to adjust the track device to further reduce the track inclination. That is, it is difficult to finely adjust the inclination of the track by the above-described fixing member. Therefore, there is room for improvement in terms of the attitude accuracy of the track.

  An object of the present invention is to provide a trajectory device that can easily adjust the inclination of the trajectory and improve the attitude accuracy of the trajectory.

  In order to achieve the above object, the present invention provides an orbital device installed on the outer peripheral side of a cylindrical object, and an annular orbit and an annular fixing ring fixed on the outer peripheral side of the object. An inclination adjusting mechanism capable of adjusting an inclination of the track with respect to the fixing ring.

  According to the present invention, the inclination of the track can be easily adjusted, and the posture accuracy of the track can be improved.

It is an axial sectional view showing the principal part structure of the ultrasonic inspection apparatus according to the first embodiment of the present invention. It is an axial direction sectional view showing the structure of the track apparatus in a 1st embodiment of the present invention, and shows the state before the inclination adjustment of a track. It is an axial direction sectional view showing the structure of the track device in a 1st embodiment of the present invention, and shows the state after adjusting the inclination of a track. It is the figure seen from the arrow IV direction in FIG. FIG. 5 is a partially enlarged exploded view of a portion V in FIG. 4. It is sectional drawing by the cross section VI-VI in FIG. It is sectional drawing by the cross section VII-VII in FIG. It is a figure which shows the case where the detection distribution of the reflected wave by the back surface bead of the welding part displayed as a detection result of an ultrasonic inspection apparatus becomes curvilinear. It is an axial direction sectional view showing the structure of a track device in a 2nd embodiment of the present invention, and shows the state before the inclination adjustment of a track. It is an axial sectional view showing the structure of a track device in a 2nd embodiment of the present invention, and shows the state after adjusting the inclination of a track. It is the figure seen from the arrow XI direction in FIG. It is the elements on larger scale of the XII part in FIG. It is sectional drawing by the cross section XIII-XIII in FIG. It is sectional drawing by the cross section XIV-XIV in FIG.

  Hereinafter, an embodiment of the present invention will be described by taking as an example the case where the track apparatus of the present invention is used in an ultrasonic inspection apparatus.

  FIG. 1 is an axial cross-sectional view showing a main part structure of an ultrasonic inspection apparatus according to the first embodiment of the present invention.

  The ultrasonic inspection apparatus according to the present embodiment inspects a welded portion (see weld line 2 in the drawing) of the pipe 1. This ultrasonic inspection apparatus is installed on the outer peripheral side of the pipe 1 and is mounted on the track apparatus 4 having an annular track 3 and the track 3, and scans the ultrasonic probe 5 along the surface of the pipe 1. A scanning device 6 and a control device (not shown) for controlling the ultrasonic probe 5 and the scanning device 6 are provided.

  The scanning device 6 includes a circumferential scanning mechanism. The circumferential scanning mechanism includes a carriage 7 (first moving body), a holding roller 8 for attaching the carriage 7 to the track 3, and a pinion 10 that meshes with a rack 9 provided on the outer circumferential side of the track 3. And a first motor (not shown) provided on the carriage 7 for rotating the pinion 10. The carriage 7 moves along the track 3 (that is, in the circumferential direction of the pipe 1) by the rotation of the first motor.

  The scanning device 6 includes an axial direction scanning mechanism. In this axial scanning mechanism, an arm 11 provided on the carriage 7, a ball screw 12 provided on the carriage 7 so as to be parallel to the arm 11, an insertion hole through which the arm 11 is inserted, and the ball screw 12 are screwed together. It has a slider 13 (second moving body) having a screw hole, and a second motor (not shown) provided on the carriage 7 for rotating the ball screw 13. The slider 13 is moved along the arm 11 by the rotation of the second motor.

  The ultrasonic probe 5 is held by a gimbal holder 14, and the gimbal holder 15 is supported by the slider 13 via a pressing spring 15 and the like. Thereby, the ultrasonic probe 5 is pressed against the surface of the pipe 1.

  The control device controls the position of the ultrasonic probe 5 by controlling the first motor and the second motor described above. That is, the ultrasonic probe 5 is moved in the circumferential direction of the pipe 1 by moving the carriage 7 along the track 3, and the ultrasonic probe 5 is moved by moving the slider 13 along the arm 11. Is moved in the axial direction of the pipe 1. Thereby, for example, rectangular scanning as indicated by an arrow S in the figure is performed.

  Further, the control device controls transmission of ultrasonic waves by the ultrasonic probe 5. Thereby, the ultrasonic wave transmitted from the ultrasonic probe 5 to the inside of the pipe 1 is reflected by a defect or the like and is received by the ultrasonic probe 5. The control device records information on the intensity and reflection position of the ultrasonic wave received by the ultrasonic probe 5 and displays the information on, for example, a two-dimensional coordinate screen (C scope) in which the surface of the pipe 1 is developed. ing. Thereby, it is possible to confirm whether or not a defect or the like has occurred in the welded portion of the pipe 1.

  Next, the structure of the track device 4 that is a main part of the present embodiment will be described.

  2 and 3 are axial sectional views showing the structure of the track device 4 in the present embodiment. FIG. 2 shows a state before the inclination adjustment of the track 3, and FIG. 3 shows a state after the inclination adjustment of the track 3. Indicates. 4 is a view as seen from the direction of arrow IV in FIG. FIG. 5 is a partially enlarged exploded view of a portion V in FIG. 6 is a sectional view taken along section VI-VI in FIG. 4, and FIG. 7 is a sectional view taken along section VII-VII in FIG. 2 corresponds to a cross-sectional view taken along the section II-II in FIG.

  The track device 4 of the present embodiment includes an annular fixing ring 16 fixed to the outer peripheral side of the pipe 1, a track 3 disposed so as to be separated from the fixing ring 16 in the axial direction of the pipe 1, An inclination adjusting mechanism 17 capable of adjusting the inclination of the track 3 with respect to the fixing ring 16 is provided.

  The track 3 is composed of two divided track segments 18A and 18B. One pin hole is formed at each end of the track segment 18A, and one pin hole is also formed at each end of the track segment 18B. One end side of the connecting pin 19A is inserted into the pin hole of the track segment 18A, and the distal end side of the pin lock screw 20A screwed into the screw hole communicating with the pin hole is engaged with one end side of the connecting pin 19A, thereby connecting One end of the pin 19A can be fixed. The other end side of the connecting pin 19A is inserted into the pin hole of the track segment 18B, and the tip side of the pin lock screw 20A screwed into the screw hole communicating with the pin hole is engaged with the other end side of the connecting pin 19A. The other end side of the connecting pin 19A can be fixed. By using these connecting pins 19A and pin lock screws 20A, the track segments 18A and 18B can be connected and separated. An engagement hole for engaging with the rotary tool is formed on the proximal end side of the pin lock screw 20A.

  As with the track 3, the fixing ring 16 is constituted by two fixing ring divided bodies 21A and 21B. One pin hole is formed at each end of the fixed ring divided body 21A, and one pin hole is also formed at each end of the fixed ring divided body 21B. One end side of the connecting pin 19B is inserted into the pin hole of the fixing ring divided body 21A, and the tip side of the pin lock screw 20B screwed into the screw hole communicating with the pin hole is engaged with one end side of the connecting pin 19B. One end side of the connecting pin 19B can be fixed. The other end side of the connecting pin 19B is inserted into the pin hole of the fixing ring divided body 21B, and the tip end side of the pin lock screw 20B screwed into the screw hole communicating with the pin hole is engaged with the other end side of the connecting pin 19B. Thus, the other end side of the connecting pin 19B can be fixed. By using the connecting pin 19B and the pin lock screw 20B, the fixing ring divided bodies 21A and 21B can be connected and separated. An engagement hole that engages with the rotary tool is formed on the base end side of the pin lock screw 20B.

  The fixing ring 16 is formed with four screw holes 22 that are spaced apart from each other in the circumferential direction and penetrate in the radial direction (in other words, two screw holes 22 are formed in each of the fixing ring divided bodies 21A and 21B), Four fixing pads 23 (fixing members) screwed into the screw holes 22 are provided. The fixing pad 23 includes a screw portion 24 screwed into the screw hole 22, and a pad portion 25 provided on the distal end side of the screw portion 24 and disposed radially inside the fixing ring 16.

  Then, the screw portion 24 of the fixing pad 23 is turned to adjust the position of the pad portion 25, and the pad portion 25 is brought into contact with the outer peripheral surface of the pipe 1 so that the fixing ring 16 is fixed to the outer peripheral side of the pipe 1. It has become. An engagement hole that engages with the rotary tool is formed on the proximal end side of the screw portion 24.

  The tilt adjusting mechanism 17 has four tilt adjusting screws 26 provided between the fixing ring 16 and the track 3. The fixing ring 16 is formed with four inclination adjusting screw holes 27 that are spaced apart from each other in the circumferential direction and penetrate in the axial direction. One end of the tilt adjusting screw 26 is screwed into the tilt adjusting screw hole 27 of the fixing ring 16, and the other end is rotatably connected to the track 3 via the ball joint portion 28. That is, the fixed ring segment 21A and the track segment 16A are connected via two inclination adjusting screws 26, and the fixed ring segment 21B and the track segment 16B are connected via two tilt adjusting screws 26.

  Then, by turning the inclination adjusting screw 26, the distance between the fixing ring 16 and the track 3 at the circumferential position can be adjusted. Thereby, the inclination of the track 3 with respect to the fixed ring 16 can be adjusted. An engagement hole that engages with the rotary tool is formed on the base end side of the inclination adjusting screw 26.

  Next, an example of a method for attaching the track device 4 and the scanning device 6 in the present embodiment will be described.

  First, the fixed ring divided body 21A and the track divided body 18A integrated via the inclination adjusting screw 26 and the fixed ring divided body 21B and the track divided body 18B integrated via the inclination adjusting screw 26 are connected to the pipe 1. It arranges on the outer peripheral side. At this time, for example, one end side of the connecting pin 19B is inserted into the pin hole of the fixed ring divided body 21A and fixed in advance with the lock pin 20B, and one end side of the connecting pin 19A is inserted into the pin hole of the track divided body 18A. It is fixed in advance with a lock pin 20A. Then, the other end side of the connecting pin 19B is inserted into the pin hole of the fixed ring divided body 21B and fixed with the lock screw 20B, thereby connecting the fixed ring divided bodies 21A and 21B. Further, the other end of the connecting pin 19A is inserted into the pin hole of the track segment 18B and fixed with the lock screw 20A, thereby coupling the track segments 18A and 18B.

  Thereafter, the screw portion 24 of the fixing pad 23 is turned to adjust the position of the pad portion 25, the pad portion 25 is brought into contact with the outer peripheral surface of the pipe 1, and the fixing ring 16 is fixed to the outer peripheral side of the pipe 1.

  Thereafter, for example, the distances a, b, c, d (see FIG. 2) from the weld line 2 of the pipe 1 to the end face of the track 3 at arbitrary four circumferential positions are measured with a scale or the like, and these distances have a certain value. The inclination adjusting screw 26 is operated so as to be equal to L (see FIG. 3, L = b = d in the figure), and the inclination of the track 3 is adjusted.

  Thereafter, the scanning device 6 to which the ultrasonic probe 5 is attached is attached to the track 3 of the track device 4.

  In the present embodiment as described above, the fixing ring 16 is fixed to the outer peripheral side of the pipe 1, and the inclination adjusting mechanism 17 capable of adjusting the inclination of the track 3 with respect to the fixing ring 16 is provided. By the inclination adjusting mechanism 17, the inclination of the track 3 can be easily adjusted, and the posture accuracy of the track 3 can be improved. Therefore, the parallelism between the track 3 and the weld line 2 of the pipe 1 can be enhanced. 1 to 3 show an example in which the weld line 2 of the pipe 1 is perpendicular to the central axis of the pipe 1, but the case where the weld line 2 of the pipe 1 is not perpendicular to the central axis of the pipe 1 In addition, the parallelism between the track 3 and the weld line 2 of the pipe 1 can be improved by adjusting the inclination of the track 3.

  And the following effects are acquired by improving the parallelism of the track | orbit 3 and the weld line 2 of the piping 1. FIG. In the ultrasonic inspection apparatus described above, the reflected wave due to the back bead of the weld is detected and displayed on the two-dimensional coordinate screen. If the parallelism between the track 3 and the weld line 2 of the pipe 1 is not obtained, the detection distribution of the reflected wave due to the back bead of the welded portion is displayed in a curved shape (see FIG. 8A and later). (Refer FIG.8 (b)). For this reason, for example, when a defect is generated in the vicinity of the back bead, even if a reflected wave due to the defect is detected, it is difficult to distinguish it from the reflected wave due to the back bead. On the other hand, if the parallelism between the track 3 and the weld line 2 of the pipe 1 is obtained, the detection distribution of the reflected wave due to the back bead of the weld is displayed in a straight line. Therefore, it becomes easy to distinguish between the reflected wave due to the defect and the reflected wave due to the back bead, and the presence or absence of the defect can be easily evaluated.

  In the first embodiment, the distance from the weld line 2 of the pipe 1 to the end face of the track 3 at any four circumferential positions is measured with a scale or the like, and the inclination is adjusted so that these distances are equal. Although the case where the inclination of the track 3 is adjusted by operating the screw 26 has been described as an example, the present invention is not limited to this. That is, for example, as shown in the S-curve 2a shown in FIG. 8A or the S-curve 2b shown in FIG. So that the detection distribution becomes a straight line (specifically, for example, the deviation amounts e and f shown in FIG. 8A or the deviation amount shown in FIG. 8B). The inclination adjusting screw 26 may be operated to adjust the inclination of the track 3 (so that g and h become zero). In such a case, the same effect as described above can be obtained.

  In the first embodiment, the track 3 and the fixed ring 16 have been described by way of example. However, the present invention is not limited to this, and each track 3 and the fixed ring 16 may be divided into three or more. Moreover, in the said 1st Embodiment, although the case where it had four sets of the inclination adjustment screws 26 and the inclination adjustment screw holes 27 was demonstrated as an example, it is not restricted to this, You may have 3 sets or 5 sets or more. However, in order to connect the track segment and the fixed ring segment, the number is preferably equal to or greater than the number of segments of the track 3 and the fixed ring 16. In these cases, the same effect as described above can be obtained.

  Further, in the first embodiment, the fixing ring 16 is formed with an inclination adjusting screw hole 27 that is spaced apart from each other in the circumferential direction and penetrates in the axial direction, and one end side is screwed into the inclination adjusting screw hole 27 and the other end side is Although the case where the tilt adjusting screw 26 is rotatably connected to the track 3 has been described as an example, the present invention is not limited to this, and modifications can be made without departing from the spirit and technical idea of the present invention. That is, an inclination adjusting screw hole formed in the track 3 so as to be spaced apart in the circumferential direction and penetrating in the axial direction, one end side is screwed into the inclination adjusting screw hole, and the other end side is rotatably connected to the fixing ring 16. You may have. In this case, the same effect as described above can be obtained.

  A second embodiment of the present invention will be described. Note that in this embodiment, the same parts as those in the first embodiment are denoted by the same reference numerals, and description thereof will be omitted as appropriate.

  FIGS. 9 and 10 are axial sectional views showing the structure of the track device according to the present embodiment. FIG. 9 shows a state before adjusting the track inclination, and FIG. 10 shows a state after adjusting the track tilt. FIG. 11 is a diagram viewed from the direction of arrow XI in FIG. FIG. 12 is a partially enlarged exploded view of a portion XII in FIG. 13 is a cross-sectional view taken along section XIII-XIII in FIG. 11, and FIG. 14 is a cross-sectional view taken along section XIV-XIV in FIG. 9 corresponds to a cross-sectional view taken along a section IX-IX in FIG.

  The track device 4A of the present embodiment includes an annular fixing ring 16A fixed to the outer peripheral side of the pipe 1, a track 3A arranged so as to overlap the fixing ring 16A in the radial direction of the pipe 1, and a fixed An inclination adjusting mechanism 29 capable of adjusting the inclination of the track 3A with respect to the ring 16A is provided.

  The track 3A is composed of two divided track segments 18A and 18B. Two pin holes are formed at both ends of the track segment 18A, and two pin holes are formed at both ends of the track segment 18B. Then, by using the connecting pin 19A and the pin lock screw 20A, the track division bodies 18A and 18B can be connected and separated.

  The fixed ring 16A is composed of two divided fixed ring divided bodies 21A and 21B, like the track 3A. Two pin holes are formed at both ends of the fixed ring divided body 21A, and two pin holes are formed at both ends of the fixed ring divided body 21B. And by using the connecting pin 19B and the pin lock screw 20B, the fixed ring divided bodies 21A and 21B can be connected and separated.

  The fixing ring 16A is formed with four screw holes 22 that are spaced apart from each other in the circumferential direction and penetrate in the radial direction (in other words, two screw holes 22 are formed in each of the fixing ring divided bodies 21A and 21B), Four fixing pads 23 (fixing members) are respectively provided in the screw holes 22.

  Then, the screw portion 24 of the fixing pad 23 is turned to adjust the position of the pad portion 25, and the pad portion 25 is brought into contact with the outer peripheral surface of the pipe 1 so that the fixing ring 16 </ b> A is fixed to the outer peripheral side of the pipe 1. It has become. In the track 3A, an insertion hole 30 for inserting the rotary tool is formed at a position corresponding to the screw portion 24 of the fixing pad 23 (in other words, the screw hole 22 of the fixing ring 16A).

  The inclination adjusting mechanism 29 has a spherical surface 31 formed on the outer peripheral side of the fixing ring 16A and a spherical seat 32 formed on the inner peripheral side of the track 3A so as to be slidable on the spherical surface 31. Thereby, the track 3A can be swung with respect to the fixed ring 16A, and the inclination of the track 3A with respect to the fixed ring 16A can be adjusted. The track 3A is formed with four tilt fixing screw holes 33 that are spaced apart from each other in the circumferential direction and penetrate in the radial direction, and four tilt fixing screws 34 that are screwed into the tilt fixing screw holes 33 are provided. ing.

  Then, after adjusting the inclination of the track 3A with respect to the fixing ring 16A, the inclination fixing screw 34 is turned, and the inclination fixing screw 34 is brought into contact with the spherical surface 31 (outer peripheral surface) of the fixing ring 16 to fix the inclination of the track 3A. It is like that. An engagement hole that engages with the rotary tool is formed on the proximal end side of the tilt fixing screw 34.

  In the present embodiment as described above, the fixing ring 16A is fixed to the outer peripheral side of the pipe 1, and the inclination adjusting mechanism 29 capable of adjusting the inclination of the track 3A with respect to the fixing ring 16A is provided. By the inclination adjusting mechanism 29, the inclination of the track 3A can be easily adjusted, and the attitude accuracy of the track 3A can be improved. Therefore, the parallelism between the track 3A and the weld line 2 of the pipe 1 can be enhanced.

  In the second embodiment, the track 3A and the fixed ring 16A have been described by way of example as being divided into two. However, the present invention is not limited to this, and each track may be divided into three or more. Moreover, in the said 2nd Embodiment, although the case where it had four sets of the inclination fixing screw 34 and the inclination fixing screw hole 33 was demonstrated as an example, it is not restricted to this, You may have 3 sets or 5 sets or more. In these cases, the same effect as described above can be obtained.

  Moreover, in the said 1st and 2nd embodiment, although the case where it had 4 sets of the fixed pad 23 and the screw hole 22 was demonstrated as an example, it is not restricted to this, You may have 3 sets or 5 sets or more. In such a case, the same effect as described above can be obtained.

  In the above description, the inspection apparatus for inspecting the welded portion of the pipe has been described as an example of the application of the track apparatus of the present invention. However, the present invention is not limited to this. That is, you may apply to the welding apparatus which welds piping, for example. Also in this case, the inclination of the trajectory can be easily adjusted, and the attitude accuracy of the trajectory can be improved. Therefore, the parallelism between the track and the groove line of the pipe can be improved.

1 Piping 3, 3A Track 4, 4A Track Device 16, 16A Fixing Ring 17 Tilt Adjustment Mechanism 18A, 18B Track Divider 21A, 21B Fixing Ring Divider 22 Screw Hole 23 Fixing Pad (Fixing Member)
26 Inclination adjusting screw 27 Inclination adjusting screw hole 29 Inclination adjusting mechanism 31 Spherical surface 32 Spherical seat 33 Inclination fixing screw hole 34 Inclination fixing screw

Claims (5)

In the orbital device installed on the outer peripheral side of the cylindrical object,
An annular orbit,
An annular fixing ring fixed to the outer peripheral side of the object;
And a tilt adjusting mechanism capable of adjusting a tilt of the track with respect to the fixing ring. The track device according to claim 1, wherein
The fixing ring and the track are arranged to be separated from each other in the axial direction of the object,
The tilt adjusting mechanism includes at least three tilt adjusting screw holes formed on one of the fixing ring and the track so as to be axially spaced apart from each other in the circumferential direction, and one end side of the tilt adjusting screw hole is the tilt adjusting screw hole. A track device comprising: at least three tilt adjustment screws that are screwed together and the other end side of which is rotatably connected to the other of the fixing ring and the track. The track device according to claim 1, wherein
The fixing ring and the track are arranged to overlap each other in the radial direction of the object,
The tilt adjusting mechanism includes a spherical surface formed on the outer peripheral side of the fixing ring, a spherical seat formed on the inner peripheral side of the track so as to be slidable on the spherical surface, and a circumferential direction spaced apart from the track. Then, at least three tilt fixing screw holes formed so as to penetrate in the radial direction, and at least three tilt fixing screws that are screwed into the tilt fixing screw holes and can contact the spherical surface on the outer peripheral side of the fixing ring. And a trajectory device characterized by comprising: The track device according to claim 1, wherein
At least three screw holes formed in the fixing ring so as to be radially spaced apart from each other in the circumferential direction, and at least three screw holes that are screwed into the screw holes and can contact the outer peripheral surface of the object A fixing member,
The track device, wherein the fixing ring is fixed to an outer peripheral side of the object through the at least three fixing members. The track device according to claim 1, wherein
Each of the fixing ring and the track includes a plurality of divided bodies divided into at least two.

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