CN113624132A - C-shaped inner rack rotation center debugging method and C-shaped inner rack mounting structure - Google Patents

C-shaped inner rack rotation center debugging method and C-shaped inner rack mounting structure Download PDF

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Publication number
CN113624132A
CN113624132A CN202110886296.1A CN202110886296A CN113624132A CN 113624132 A CN113624132 A CN 113624132A CN 202110886296 A CN202110886296 A CN 202110886296A CN 113624132 A CN113624132 A CN 113624132A
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China
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shaped
shaped inner
preset
guide rail
mounting structure
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CN113624132B (en
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帅进文
贾敬朝
魏勇
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Maisheng Medical Equipment Co Ltd
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Maisheng Medical Equipment Co Ltd
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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B11/00—Measuring arrangements characterised by the use of optical techniques
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B11/00—Measuring arrangements characterised by the use of optical techniques
    • G01B11/02—Measuring arrangements characterised by the use of optical techniques for measuring length, width or thickness

Abstract

The invention relates to the field of medical equipment, and discloses a C-shaped inner rack rotating center debugging method and a C-shaped inner rack mounting structure. According to the C-shaped inner rack mounting structure provided by the invention, the first mounting hole and/or the second mounting hole are/is arranged to be the waist-shaped holes, so that the C-shaped inner rack can move relative to the C-shaped inner rack mounting structure, and the C-shaped inner rack can rotate relative to the C-shaped inner rack mounting structure, so that the position of the C-shaped inner rack relative to the C-shaped inner rack mounting structure can be adjusted by matching with the theodolite and the ruler, and the purposes of improving the mounting precision and mounting and debugging efficiency of the C-shaped inner rack are achieved.

Description

C-shaped inner rack rotation center debugging method and C-shaped inner rack mounting structure
Technical Field
The invention relates to the field of medical equipment, in particular to a C-shaped inner rack rotating center debugging method and a C-shaped inner rack mounting structure.
Background
In the medical industry, a C-shaped inner frame is usually adopted for fixedly mounting a shooting or radiotherapy device, the C-shaped inner frame comprises a C-shaped frame, a C-shaped guide rail, a gear rack structure and a treatment head, the C-shaped guide rail, the gear rack structure and the treatment head are mounted on the C-shaped frame, a motor drives a gear to rotate, and the gear and the rack are in transmission fit to drive the treatment head to rotate on the C-shaped inner frame along the guide rail. However, due to the influence of the machining precision, the guide rail precision and the installation error, the actual rotation center of the treatment head is often deviated from the ideal rotation center, and the rotation precision of the treatment head determines the precision of radiotherapy or shooting. In order to adjust the actual rotation center of the treatment head within the medically acceptable runout error range, the current method is to measure the rotation center of the C-type inner gantry by using a laser tracker so that the runout error of the rotation center of the C-type inner gantry is within the medically acceptable runout error range.
However, the cost of the laser tracker is high, which results in high maintenance cost for the C-type inner frame.
Disclosure of Invention
The invention aims to provide a C-shaped inner rack rotation center debugging method and a C-shaped inner rack mounting structure, which can meet the requirement of the jump error of the rotation center of a C-shaped inner rack and greatly reduce the maintenance cost.
In order to achieve the purpose, the invention adopts the following technical scheme:
the debugging method of the rotating center of the C-shaped inner rack comprises the following steps that the C-shaped inner rack is arranged on a C-shaped inner rack mounting structure and comprises a C-shaped rack and a treatment head, and a C-shaped guide rail which is in sliding connection with the treatment head is arranged on the C-shaped rack; the debugging method of the C-shaped inner rack rotation center comprises the following steps:
step 1, placing a theodolite on one side of a C-shaped inner rack mounting structure, wherein a C-shaped inner rack is positioned between the theodolite and the C-shaped inner rack mounting structure, so that one of cursor lines of a cross cursor of the theodolite is positioned on a preset reference surface;
step 2, detachably mounting the simulation load on the treatment head;
step 3, mounting the ruler on the simulation load to enable the ruler to be perpendicular to the C-shaped end face of the C-shaped frame;
step 4, setting a plurality of different preset expansion amounts, wherein the preset expansion amount is the extension length of the treatment head and corresponds to any one preset expansion amount, the treatment head extends out of the preset expansion amount when at least three first preset positions are distributed along the circumferential direction of the C-shaped guide rail, and the size value of the ruler, which is aligned with the light mark line of the theodolite on the preset reference surface, is read through the theodolite;
and (4) corresponding to any preset expansion amount, if the difference value of any two read size values exceeds the preset jump error range, adjusting the position of the treatment head relative to the C-shaped frame of the C-shaped inner frame, and repeating the step (4) until the difference value of any two read size values is within the preset jump error range corresponding to any preset expansion amount.
As a preferred technical solution of the C-shaped inner frame rotation center debugging method, the position where the treatment head is vertically arranged on the top of the C-shaped guide rail is recorded as an initial position, and the rotation angle of the treatment head is 0 °; when the treatment head is vertically arranged at the bottom of the C-shaped guide rail, the rotation angle of the treatment head is 180 degrees; the rotation angle of the treatment head is not more than-5 degrees and not less than 185 degrees;
the first preset position is the position of the treatment head when the rotation angle of the treatment head is-5 degrees, 0 degrees, 22.5 degrees, 45 degrees, 67.5 degrees, 90 degrees, 112.5 degrees, 135 degrees, 157.5 degrees, 180 degrees and 185 degrees.
As a preferable technical solution of the method for debugging the rotation center of the C-type internal frame, after the step 2 and before the step 3, the position of the C-type internal frame relative to the mounting structure of the C-type internal frame is adjusted so that the C-type end surface of the C-type frame is parallel to the preset reference surface.
As a preferable technical solution of the method for debugging the rotation center of the C-shaped internal frame, adjusting the position of the C-shaped internal frame relative to the mounting structure of the C-shaped internal frame so that the C-shaped end surface of the C-shaped internal frame is parallel to a preset reference surface includes:
s1, fixing the treatment head at a second preset position on the C-shaped guide rail;
s2, sequentially mounting zero-scale ends of the ruler at least three designated positions distributed along the circumferential direction of the C-shaped guide rail on the C-shaped inner rack, and reading size values of the ruler aligned with the cursor lines, which are superposed on the preset reference plane by the theodolite, through the theodolite;
if the size value corresponding to at least one designated position is not within the preset distance range, the position of the C-shaped inner frame relative to the mounting structure of the C-shaped inner frame is adjusted, and the step S2 is repeated until the size value corresponding to each designated position is within the preset distance range.
As a preferable technical solution of the method for adjusting the rotation center of the C-shaped internal frame, the adjusting the position of the C-shaped internal frame relative to the C-shaped internal frame mounting structure includes:
and screwing a thread adjusting piece for connecting the upper part and the lower part of the C-shaped inner frame with the mounting structure of the C-shaped inner frame, and rotating and/or moving the C-shaped inner frame.
As a preferred technical solution of the debugging method of the C-shaped inner frame rotation center, the C-shaped guide rail includes an inner guide rail and an outer guide rail having coaxial central axes;
n assigned positions which are sequentially distributed along the extending direction of the C-shaped guide rail are arranged on the inner guide rail and the outer guide rail, N is larger than or equal to 3, the assigned positions on the inner guide rail are in one-to-one correspondence with the assigned positions on the outer guide rail, and the assigned positions which are corresponding to the inner guide rail and the outer guide rail are located on the same side of the central axis of the C-shaped guide rail in the same radial direction of the C-shaped guide rail.
As a preferable technical solution of the C-type inner gantry rotation center adjusting method, N is 3, and the three designated positions are located in the same radial direction as positions where the treatment head rotates by 0 °, 90 ° and 180 °.
As a preferable technical scheme of the debugging method for the rotating center of the C-shaped inner rack, the preset expansion and contraction amounts are respectively 0cm, 3cm, 6cm, 9cm, 12cm, 15cm, 18cm, 21cm, 24cm, 27cm and 30 cm.
As a preferable technical solution of the method for adjusting the rotation center of the C-shaped internal frame, the adjusting the position of the treatment head relative to the C-shaped frame of the C-shaped internal frame includes:
and a gasket is additionally arranged between the circumferential side wall of the C-shaped guide rail and the contact surface of the treatment head.
As a preferable technical scheme of the debugging method of the rotating center of the C-shaped inner rack, the thickness difference between two adjacent groups of gaskets distributed along the circumferential direction of the C-shaped guide rail is not more than 0.02 mm.
As an optimal technical solution of the debugging method for the rotation center of the C-shaped inner frame, the preset bounce error range is ± 0.25 mm.
As a preferable technical solution of the method for debugging the rotation center of the C-type internal frame, before step 1, the method further includes:
and measuring the levelness of the C-shaped inner rack mounting structure, and fixing the C-shaped inner rack mounting structure on the ground through expansion screws when the levelness is within a preset levelness range.
As a preferable technical solution of the debugging method of the C-shaped inner frame rotation center, when the levelness is not within the preset levelness range, a pad plate is added or removed between the lower surface of the C-shaped inner frame mounting structure and the ground until the levelness is within the preset levelness range.
The invention also provides a C-shaped inner rack mounting structure, when the C-shaped inner rack is mounted on the C-shaped inner rack mounting structure, the rotating center of the C-shaped inner rack is debugged by adopting the C-shaped inner rack rotating center debugging method;
the C-shaped inner frame mounting structure comprises:
the first mounting plate is provided with a first mounting hole corresponding to a first preformed hole at the lower part of the C-shaped frame of the C-shaped inner frame and used for fixing the lower part of the C-shaped frame of the C-shaped inner frame through a first thread adjusting piece;
the second mounting plate is positioned above the first mounting plate, a second mounting hole corresponding to a second preformed hole in the clamping table on the upper portion of the C-shaped inner rack is formed in the second mounting plate, and the second mounting hole is used for fixing the clamping table on the upper portion of the C-shaped inner rack through a second threaded adjusting piece;
the first mounting hole and/or the second mounting hole are waist-shaped holes, and the diameters of the first mounting hole and the second mounting hole are respectively larger than the outer diameters of the corresponding threaded adjusting pieces, so that the C-shaped inner rack can move and rotate relative to the C-shaped inner rack mounting structure.
As a preferable technical solution of the C-shaped inner frame mounting structure, the C-shaped inner frame mounting structure further includes:
the link, first mounting panel is located one side of link, and one end fixed connection in the lower part of link, second mounting panel fixed connection in the upper portion of link.
As a preferable technical solution of the C-shaped inner frame mounting structure, the C-shaped inner frame mounting structure further includes:
the debugging plate is fixedly connected to the connecting frame, and the upper surface of the debugging plate is a plane and used for placing a level meter to measure the levelness of the upper surface of the debugging plate.
The invention has the beneficial effects that: according to the debugging method for the rotating center of the C-shaped inner rack, the theodolite and the ruler are matched to adjust the position of the C-shaped inner rack relative to the mounting structure of the C-shaped inner rack and the position of the treatment head relative to the C-shaped rack, so that the jumping error of the rotating center of the C-shaped inner rack is within the preset jumping error range, and the maintenance cost is greatly reduced.
According to the C-shaped inner rack mounting structure provided by the invention, the first mounting hole and/or the second mounting hole are/is set to be the waist-shaped holes, and the hole diameters of the first mounting hole and the second mounting hole are respectively larger than the outer diameters of the corresponding thread adjusting pieces, so that the C-shaped inner rack can move relative to the C-shaped inner rack mounting structure, and the C-shaped inner rack can rotate relative to the C-shaped inner rack mounting structure, so that the position of the C-shaped inner rack relative to the C-shaped inner rack mounting structure can be adjusted by matching with the theodolite and the ruler, and the purposes of improving the mounting precision and mounting and debugging efficiency of the C-shaped inner rack are achieved.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the description of the embodiments of the present invention will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the contents of the embodiments of the present invention and the drawings without creative efforts.
Fig. 1 is a first structural schematic diagram of a C-type internal frame mounting structure provided with a C-type internal frame according to an embodiment of the present invention;
fig. 2 is a structural schematic diagram ii of a C-type inner frame mounting structure provided with a C-type inner frame according to an embodiment of the present invention;
FIG. 3 is a first structural schematic diagram of a C-shaped inner frame mounting structure according to an embodiment of the present invention;
FIG. 4 is a second schematic structural diagram of a C-shaped inner frame mounting structure according to an embodiment of the present invention;
FIG. 5 is a top view of a C-shaped internal frame mounting structure provided by an embodiment of the present invention;
fig. 6 is a flowchart of a method for debugging a rotation center of a C-type internal rack according to an embodiment of the present invention.
In the figure:
1. a first mounting plate; 11. a first mounting hole; 2. a second mounting plate; 21. a second mounting hole; 3. a connecting frame; 31. a rectangular frame; 32. a connecting member; 4. debugging the board; 41. debugging the hole; 5. a first fixing plate; 6. a second fixing plate; 7. a third fixing plate; 8. a support plate; 9. a reinforcing plate;
101. a C-shaped frame; 102. a treatment head; 103. clamping a table; 104. simulating a load; 105. a straightedge;
200. a straight line is preset.
Detailed Description
In order to make the technical problems solved, the technical solutions adopted and the technical effects achieved by the present invention clearer, the technical solutions of the present invention are further described below by way of specific embodiments with reference to the accompanying drawings. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some but not all of the elements associated with the present invention are shown in the drawings.
The C-shaped inner frame comprises a C-shaped frame, a treatment head and a clamping table connected to the upper part of the C-shaped frame, wherein a C-shaped guide rail connected with the treatment head in a sliding manner is arranged on one side of the C-shaped frame, and the treatment head is provided with a first motor and a second motor in a matching manner, wherein the first motor is used for driving the treatment head to slide relative to the C-shaped guide rail; the second motor is used for driving the therapeutic head to radially extend and retract along the C-shaped guide rail.
As shown in fig. 1 to 5, the present embodiment provides a method for debugging a rotation center of a C-type inner frame and a C-type inner frame mounting structure, in which the C-type inner frame is mounted on the C-type inner frame mounting structure, and a run-out error of the rotation center of the C-type inner frame is within a preset run-out error range through debugging, so as to improve the mounting efficiency and the mounting accuracy of the C-type inner frame.
The mounting structure of the C-shaped inner rack comprises a first mounting plate 1 and a second mounting plate 2, wherein the first mounting plate 1 is provided with a first mounting hole 11 corresponding to a first preformed hole at the lower part of the C-shaped rack 101 of the C-shaped inner rack, and the first mounting hole is used for fixing the lower part of the C-shaped rack 101 through a first thread adjusting piece; second mounting panel 2 is located the top of first mounting panel 1, be equipped with on the second mounting panel 2 with the C type in the second mounting panel that the second preformed hole on the card table 103 on frame upper portion corresponds second mounting hole 21, second mounting hole 21 is used for fixing card table 103 through second screw thread regulating part, first mounting hole 11 and/or second mounting hole 21 are waist type hole, and the aperture of first mounting hole 11 and second mounting hole 21 is greater than the external diameter of the screw thread regulating part that corresponds respectively, make frame removal and rotation in the C type for frame mounting structure in the C type. When the installation is carried out, the long axis direction and the short axis direction of the waist-shaped hole are both horizontal directions, and the opening direction of the C-shaped frame 101 is consistent with the short axis direction of the waist-shaped hole. Illustratively, the second mounting hole 21 is a kidney-shaped hole, and the first mounting hole 11 is a circular hole.
Further, the C-shaped inner frame mounting structure further comprises a connecting frame 3, the first mounting plate 1 is located on one side of the connecting frame 3, one end of the first mounting plate is fixedly connected to the lower portion of the connecting frame 3, and the second mounting plate 2 is fixedly connected to the upper portion of the connecting frame 3. Support first mounting panel 1 and second mounting panel 2 through link 3, improve the stability of first mounting panel 1 and second mounting panel 2.
Specifically, the connecting frame 3 includes two rectangular frames 31 and a connecting member 32, wherein the two rectangular frames 31 are distributed along the minor axis direction of the kidney-shaped hole; at least two connecting pieces 32 are arranged, and the at least two connecting pieces 32 are sequentially distributed at intervals along the long axis direction of the waist-shaped hole; both ends of each connecting member 32 are connected to the two rectangular frames 31, respectively. Wherein, two rectangular frames 31 can be formed by welding I-steel or square steel pipes.
Because the height difference between the first mounting plate 1 and the second mounting plate 2 is large due to the height problem of the C-shaped inner frame, the connecting frame 3 in this embodiment further includes a supporting plate 8 located between the first mounting plate 1 and the second mounting plate 2, and two ends of the supporting plate 8 are respectively connected to the two rectangular frames 31. Improve the structural strength of link 3 through backup pad 8, on installer can stand backup pad 8 simultaneously, will block table 103 and be fixed in second mounting panel 2 through second screw thread regulating part, and loosen second screw thread regulating part and realize the small-angle rotation and the removal of card table 103.
In order to improve the connection strength between the second mounting plate 2 and the connecting frame 3, the connecting frame 3 further comprises at least two reinforcing plates 9, the at least two reinforcing plates 9 are located above the second mounting plate 2, the at least two reinforcing plates 9 are sequentially distributed along the long axis direction of the waist-shaped hole, two ends of each reinforcing plate 9 are respectively connected to the two rectangular frames 31, and the lower end of each reinforcing plate 9 is connected to the second mounting plate 2. Preferably, three reinforcing plates 9 are provided.
In order to reduce the weight of the C-shaped inner frame mounting structure, the reinforcing plate 9 is a hollow plate.
Further, rack-mount structure still includes debugging board 4 in above-mentioned C type, and 4 fixed connection in link 3 of debugging board, the upper surface of debugging board 4 are the plane for place the spirit level with the levelness of measuring 4 upper surfaces of debugging board. In this embodiment, the debugging plate 4 and the first mounting plate 1 are distributed at intervals along the short axis direction of the waist-shaped hole, and the debugging plate 4 is provided with a plurality of debugging holes 41 which are sequentially distributed along the short axis direction of the waist-shaped hole.
Specifically, the C-shaped inner frame mounting structure further includes a first fixing plate 5, a second fixing plate 6 and a third fixing plate 7, wherein at least two first fixing plates 5 are fixed at the bottom of the first mounting plate 1, and the first fixing plates 5 are provided with first fixing holes for fixing the first fixing plates 5 to the ground through first expansion screws. The bottom of link 3 is equipped with two at least second fixed plates 6, is equipped with the second fixed orifices on the second fixed plate 6 for pass through second inflation screw fixation in ground with link 3. The bottom of debugging board 4 is equipped with two at least third fixed plates 7, is equipped with the third fixed orifices on the third fixed plate 7 for pass through third inflation screw fixation in ground with debugging board 4.
When the C-shaped inner frame mounting structure is fixed to the ground, the levelness of the upper surface of the debugging plate 4 is measured by the level meter, when the levelness of the upper surface of the debugging plate 4 is not within the preset levelness range, a backing plate is added or removed between the lower surface of the second fixing plate 6, and/or the first fixing plate 5, and/or the third fixing plate 7 and the ground, and when the levelness of the upper surface of the debugging plate 4 is within the preset levelness range, the first fixing plate 5, the second fixing plate 6, and the third fixing plate 7 are fixed to the ground by the first expansion screw, the second expansion screw, and the third expansion screw, respectively.
The method for adjusting the rotation center of the C-shaped inner frame will be described in detail with reference to fig. 6.
S1, placing the theodolite on one side of the C-shaped inner rack mounting structure, wherein the C-shaped inner rack is located between the theodolite and the C-shaped inner rack mounting structure, and one of the cursor lines of the cross cursor of the theodolite is located on a preset reference surface.
Specifically, the levelness of the upper surface of the debugging plate 4 and the upper surface of the first mounting plate 1 is ensured during processing, and then the debugging plate 4 and the first mounting plate 1 are fixed on one side of the connecting frame 3, so that the debugging plate 4 and the first mounting plate 1 are distributed at intervals along the short axis direction of the kidney-shaped hole. Preferably, the commissioning plate 4 and the first mounting plate 1 are welded to the connection frame 3.
After the C-shaped inner rack mounting structure is fixed on the ground, the projection of a preset reference surface on the ground is drawn on the ground and recorded as a preset straight line 200, the theodolite is placed on one side of the C-shaped inner rack, the theodolite is adjusted until one of the light lines of the cross cursor of the theodolite is completely coincided with the preset straight line 200, and then the light line of the theodolite is positioned on the preset reference surface.
In this embodiment, the debugging holes 41 correspond to the first mounting holes 11 one to one, a first marking point is disposed on the opening end surface above one of the debugging holes 41, a second marking point is disposed on the opening end surface above the first mounting hole 11 corresponding to the debugging hole 41, a connection line between the first marking point and the second marking point is drawn on the ground, and then a perpendicular bisector of the connection line is drawn on the ground, which is the preset straight line 200.
Before step 1, the upper end and the lower end of the C-shaped inner frame are respectively pre-tightened and installed on the first installation plate 1 and the second installation plate 2 through a plurality of threaded adjusting pieces.
The levelness of the C-shaped inner rack mounting structure is measured in the process that the upper end and the lower end of the C-shaped inner rack are pre-mounted on the first mounting plate 1 and the second mounting plate 2 through a plurality of thread adjusting pieces respectively, and if the levelness is within a preset levelness range, the C-shaped inner rack mounting structure is fixed.
Specifically, the level meter is placed on the upper surface of the debugging plate 4, if the levelness of the upper surface of the debugging plate 4 is not within the preset levelness range, the base plates are additionally arranged between the first fixing plate 5 and the ground, and/or between the second fixing plate 6 and the ground, and/or between the third fixing plate 7 and the ground, and when the levelness of the upper surface of the debugging plate 4 is within the preset levelness range, the first fixing plate 5, the second fixing plate 6 and the third fixing plate 7 are respectively fixed on the ground through the first expansion screw, the second expansion screw and the third expansion screw.
And S2, detachably mounting the simulation load on the treatment head.
Specifically, the dummy load 104 is positioned on the treatment head 102 by a dowel pin, and the dummy load 104 is fixed on the treatment head 102 by a screw.
And S3, adjusting the position of the C-shaped inner frame relative to the mounting structure of the C-shaped inner frame to enable the C-shaped end face of the C-shaped inner frame to be parallel to the preset reference plane.
Specifically, S31, fixing the treatment head 102 at a second preset position on the C-shaped guide rail of the C-shaped inner frame; s32, sequentially mounting the zero-scale ends of the straight ruler 105 on at least three designated positions on the C-shaped inner rack to enable the straight ruler 105 to be perpendicular to a preset reference surface, and reading the size value of the straight ruler 105 aligned with the cursor line of the theodolite on the preset reference surface through the theodolite; if the size value is not within the preset interval range, the position of the C-type inner frame relative to the C-type inner frame mounting structure is adjusted, and step S32 is repeated until the size value is within the preset interval range.
The C-shaped guide rail comprises an inner guide rail and an outer guide rail, wherein the central axes of the inner guide rail and the outer guide rail are coaxial; n assigned positions which are sequentially distributed along the extending direction of the C-shaped guide rail are arranged on the inner guide rail and the outer guide rail, N is larger than or equal to 3, the assigned positions on the inner guide rail are in one-to-one correspondence with the assigned positions on the outer guide rail, and the assigned positions corresponding to the inner guide rail and the outer guide rail are located on the same side of the central axis of the C-shaped guide rail in the same radial direction.
In this embodiment, the position where the treatment head 102 is vertically disposed on the top of the C-shaped guide rail is recorded as an initial position, the rotation angle of the treatment head 102 is 0 °, when the treatment head 102 is vertically disposed on the bottom of the C-shaped guide rail, the rotation angle of the treatment head 102 is 180 °, and the rotation angle of the treatment head 102 is not greater than-5 ° and not less than 185 °. Preferably, N is 3, and the three designated positions are located in the same radial direction as the positions of the treatment head 102 when the treatment head is rotated by 0 °, 90 ° and 180 °. The specified position to be described is not limited to the position defined in the embodiment, and may be selected according to actual requirements.
The method for reading the size value of the alignment of the cursor line on the preset reference plane when the straight ruler 105 is installed at any given position by the theodolite is as follows:
the cursor line on the preset reference plane on the theodolite is marked as a first cursor line, the other cursor line on the theodolite is marked as a second cursor line, and the pitch angle of the theodolite is adjusted to enable the first cursor line to be aligned with one of the scales on the ruler 105 or between two adjacent scales on the ruler 105. When the first cursor line is aligned between two adjacent scales, the optical micrometer on the theodolite is adjusted to enable the cross cursor line of the theodolite to move left and right so as to enable the first cursor line to move towards the scale closest to the first cursor line until the first cursor line is aligned with the scale, and then a reading is obtained according to a reading method of the theodolite, wherein the reading is the size value of the ruler 105 aligned with the first cursor line.
It should be noted that, since the width of the preset straight line 200 is relatively large with respect to the width of the cross-shaped cursor line, and the length of the minimum scale unit of the straight scale 105 is smaller than the width of the preset straight line 200, although the cross-shaped cursor line of the theodolite moves left and right, the first cursor line is still aligned with the preset straight line 200. The theodolite reading method is not described in detail in the prior art.
In order to facilitate the assembly and disassembly of the ruler 105, the zero-scale end of the ruler 105 is mounted on the magnetic mounting seat, the designated position is provided with a mark, at least the part of the C-shaped frame 101 where the mark is located is made of a magnetic material capable of being magnetically adsorbed to the magnetic mounting seat, and the magnetic mounting seat is adsorbed to the position where the mark is located. When the ruler 105 is detached, the ruler 105 with the magnetic mounting base is directly and forcefully taken away.
The second predetermined position is not located radially with respect to the three designated positions in order to prevent the treatment head 102 from interfering with the mounting of the straightedge 105. The second predetermined position may be selected to be a position that does not interfere with the straightedge 105, and is not specifically defined herein.
The method for adjusting the position of the C-shaped inner frame relative to the mounting structure of the C-shaped inner frame comprises the following steps:
and screwing the thread adjusting piece for connecting the upper part and the lower part of the C-shaped inner frame with the mounting structure of the C-shaped inner frame, and rotating and/or moving the C-shaped inner frame to ensure that the size value of the straight ruler 105 fixed at each specified position is within the range of the preset distance.
It should be noted that after the above step S3 is completed, the straight edge 105 needs to be removed.
The C-shaped inner frame can be vertically positioned by the step S3, so that the C-shaped end surface of the C-shaped inner frame is substantially parallel to the preset reference surface.
And S4, mounting the ruler on the simulation load to enable the ruler to be perpendicular to the C-shaped end face of the C-shaped frame 101.
S5, setting a plurality of different preset expansion amounts, wherein the preset expansion amount is the extension length of the treatment head 102 and corresponds to any one preset expansion amount, the treatment head 102 extends out of the preset expansion amount when at least three first preset positions are distributed along the circumferential direction of the C-shaped guide rail, and the theodolite reads the size value of alignment of the straight ruler 105 and the light mark line on the theodolite, which is positioned on the preset reference surface;
and corresponding to any preset expansion amount, if the difference value of any two of the read size values exceeds the preset jump error range, adjusting the position of the treatment head 102 relative to the C-shaped rack 101 of the C-shaped inner rack, and repeating S5 until the difference value of any two of the read size values is within the preset jump error range corresponding to any preset expansion amount.
The method for adjusting the position of the treatment head 102 relative to the C-shaped frame 101 of the C-shaped internal frame is to add a spacer between the circumferential side wall of the C-shaped guide rail and the contact surface of the treatment head 102.
Specifically, the number of the preset expansion and contraction amounts is n1, the number of the first preset positions is n2, and n2 size values are obtained when the treatment head 102 is at n2 first preset positions under each preset expansion and contraction amount, and n1 × n2 size values are total. This embodiment designates each size value as N(i，j)Wherein i represents the ith preset expansion amount, j represents the jth preset expansion position, i is more than or equal to 1 and less than or equal to n1, and j is more than or equal to 1 and less than or equal to n 2.
The maximum value and the minimum value of the N1 Xn 2 size values are NmaxAnd NminThe flatness of the C-shaped end face is Nmax-Nmin. And the flatness Delta N of the C-shaped end face is within a preset flatness range by adding the gasket.
Maximum value N of N1 xn 2 size valuesmaxThe difference value of each size value under the ith preset expansion amount is delta N(i，j)，△N(i，j)＝Nmax-N(i，j)Finding out Delta N(i，j)In the method, the size value which is not in the preset jumping error range is added between the C-shaped guide rail and the treatment head 102 according to the requirement that the thickness difference between two adjacent groups of gaskets distributed along the circumferential direction of the C-shaped guide rail is not more than 0.02mm, and then the jumping error delta N of the C-shaped end surface is measured until the jumping error delta N is in the preset jumping error range.
Preferably, the first preset position is the position of the treatment head 102 when the rotation angle of the treatment head 102 is-5 °, 0 °, 22.5 °, 45 °, 67.5 °, 90 °, 112.5 °, 135 °, 157.5 °, 180 ° and 185 °, respectively. The preset expansion amounts are 0cm, 3cm, 6cm, 9cm, 12cm, 15cm, 18cm, 21cm, 24cm, 27cm and 30cm respectively. It should be noted that the first preset position and the preset stretching amount are not limited to the above setting, for example, the number of the first preset position and the number of the preset stretching amount may be increased or decreased, and may be set according to actual requirements, and there is no specific requirement here.
The method for reading the size value of the ruler 102 aligned with the cursor line on the preset reference surface on the theodolite through the theodolite when the treatment head 102 extends for the preset expansion amount and the treatment head 102 is at any first preset position is the same as the method for reading the size value of the ruler 105 aligned with the cursor line on the preset reference surface through the theodolite when the ruler 105 is installed at any specified position in step 4, and detailed description is omitted here.
It should be noted that the ruler 105 is configured to be matched with the theodolite, and the ruler 105 and the theodolite are obtained by outsourcing, which is not described in detail herein. The theodolite in the embodiment adopts an RH-6 theodolite, the measurement precision can reach the level of a percentile scale, and the installation precision of the C-shaped inner rack is greatly improved.
In the C-shaped inner frame rotation center debugging method and the C-shaped inner frame mounting structure provided by this embodiment, the first mounting hole 11 and/or the second mounting hole 21 are/is set to be a waist-shaped hole, and the aperture of the first mounting hole 11 and the aperture of the second mounting hole 21 are larger than the outer diameter of the corresponding threaded adjusting piece, so that not only can the C-shaped inner frame move relative to the C-shaped inner frame mounting structure be realized, but also the C-shaped inner frame can rotate relative to the C-shaped inner frame mounting structure, and then the position of the C-shaped inner frame relative to the C-shaped inner frame mounting structure and the position of the treatment head 102 relative to the C-shaped inner frame 101 are adjusted by matching with the theodolite and the ruler 105, so as to improve the mounting accuracy and the mounting and debugging efficiency of the C-shaped inner frame.
It should be understood that the above-described embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications in the foregoing description and variations will be apparent to those skilled in the art. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. Wherein the terms "first position" and "second position" are two different positions.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Claims (16)

  1. The debugging method of the rotating center of the C-shaped inner rack comprises the following steps that the C-shaped inner rack is installed on a C-shaped inner rack installation structure and comprises a C-shaped rack (101) and a treatment head (102), wherein a C-shaped guide rail which is in sliding connection with the treatment head (102) is arranged on the C-shaped rack (101); the debugging method is characterized in that the debugging method of the rotating center of the C-shaped inner rack comprises the following steps:
    step 1, placing a theodolite on one side of a C-shaped inner rack mounting structure, wherein a C-shaped inner rack is positioned between the theodolite and the C-shaped inner rack mounting structure, so that one of cursor lines of a cross cursor of the theodolite is positioned on a preset reference surface;
    step 2, detachably mounting the simulation load (104) on the treatment head (102);
    step 3, mounting the ruler (105) on the simulated load (104) to enable the ruler (105) to be perpendicular to the C-shaped end face of the C-shaped rack (101);
    step 4, setting a plurality of different preset expansion amounts, wherein the preset expansion amount is the extension length of the treatment head (102) and corresponds to any one preset expansion amount, the treatment head (102) extends out of the preset expansion amount when at least three first preset positions are distributed along the circumferential direction of the C-shaped guide rail, and the size value of the ruler (105) aligned with the light mark line of the theodolite on the preset reference surface is read through the theodolite;
    and (4) corresponding to any preset expansion amount, if the difference value of any two read size values exceeds the preset jump error range, adjusting the position of the treatment head (102) relative to the C-shaped rack (101) of the C-shaped inner rack, and repeating the step (4) until the difference value of any two read size values is within the preset jump error range corresponding to any preset expansion amount.
  2. 2. The debugging method of the rotation center of a C-shaped internal frame according to claim 1, characterized in that the position where the treatment head (102) is vertically arranged on the top of the C-shaped guide rail is recorded as an initial position, and the rotation angle of the treatment head (102) is 0 °; when the treatment head (102) is vertically arranged at the bottom of the C-shaped guide rail, the rotation angle of the treatment head (102) is 180 degrees; the rotation angle of the treatment head (102) is not more than-5 degrees and not less than 185 degrees;
    the first preset position is the position of the treatment head (102) when the rotation angle of the treatment head (102) is-5 degrees, 0 degrees, 22.5 degrees, 45 degrees, 67.5 degrees, 90 degrees, 112.5 degrees, 135 degrees, 157.5 degrees, 180 degrees and 185 degrees.
  3. 3. The C-type internal gantry rotation center commissioning method of claim 2, wherein after step 2 and before step 3, adjusting the position of the C-type internal gantry relative to the C-type internal gantry mounting structure such that the C-type end face of the C-type gantry (101) is parallel to a preset reference plane.
  4. 4. The C-type internal frame rotation center debugging method according to claim 3, wherein the adjusting the position of the C-type internal frame with respect to the C-type internal frame mounting structure so that the C-type end surface of the C-type frame (101) is parallel to a preset reference surface comprises:
    s1, fixing the treatment head (102) at a second preset position on the C-shaped guide rail;
    s2, sequentially mounting zero-scale ends of the ruler (105) at least three designated positions distributed on the C-shaped inner rack along the circumferential direction of the C-shaped guide rail, and reading size values of the ruler (105) aligned with cursor lines of the theodolite on a preset reference surface through the theodolite;
    if the size value corresponding to at least one designated position is not within the preset distance range, the position of the C-shaped inner frame relative to the mounting structure of the C-shaped inner frame is adjusted, and the step S2 is repeated until the size value corresponding to each designated position is within the preset distance range.
  5. 5. The C-type internal gantry rotation center commissioning method of claim 4, wherein adjusting a position of the C-type internal gantry relative to the C-type internal gantry mounting structure comprises:
    and screwing a thread adjusting piece for connecting the upper part and the lower part of the C-shaped inner frame with the mounting structure of the C-shaped inner frame, and rotating and/or moving the C-shaped inner frame.
  6. 6. The C-shaped inner frame rotation center debugging method according to claim 4, wherein the C-shaped guide rail comprises an inner guide rail and an outer guide rail, the central axes of which are coaxial;
    n assigned positions which are sequentially distributed along the extending direction of the C-shaped guide rail are arranged on the inner guide rail and the outer guide rail, N is larger than or equal to 3, the assigned positions on the inner guide rail are in one-to-one correspondence with the assigned positions on the outer guide rail, and the assigned positions which are corresponding to the inner guide rail and the outer guide rail are located on the same side of the central axis of the C-shaped guide rail in the same radial direction of the C-shaped guide rail.
  7. 7. The C-shaped internal frame rotation center adjusting method according to claim 6, wherein N is 3, and the three designated positions are respectively located at the same radial direction with the positions of the treatment head (102) when the treatment head is rotated by 0 degrees, 90 degrees and 180 degrees.
  8. 8. The C-type internal gantry rotation center debugging method of claim 1, wherein the preset amounts of telescoping are 0cm, 3cm, 6cm, 9cm, 12cm, 15cm, 18cm, 21cm, 24cm, 27cm and 30cm, respectively.
  9. 9. The C-type internal gantry rotation center adjusting method according to claim 1, wherein adjusting the position of the therapy head (102) relative to the C-type gantry (101) of the C-type internal gantry comprises:
    a gasket is additionally arranged between the circumferential side wall of the C-shaped guide rail and the contact surface of the treatment head (102).
  10. 10. The debugging method for the rotation center of a C-shaped internal frame according to claim 9, wherein the thickness difference between two adjacent groups of gaskets distributed along the circumferential direction of the C-shaped guide rail is not more than 0.02 mm.
  11. 11. The C-type internal gantry rotation center debugging method of any one of claims 1 to 10, wherein said preset runout error range is ± 0.25 mm.
  12. 12. The C-type internal gantry rotation center debugging method according to any one of claims 1 to 10, further comprising, before step 1:
    and measuring the levelness of the C-shaped inner rack mounting structure, and fixing the C-shaped inner rack mounting structure on the ground through expansion screws when the levelness is within a preset levelness range.
  13. 13. The C-type internal frame rotation center adjustment method according to claim 12, wherein when the levelness is not within the preset levelness range, a pad is added or removed between the lower surface of the C-type internal frame mounting structure and the ground until the levelness is within the preset levelness range.
  14. A C-type inner frame mounting structure, wherein when the C-type inner frame is mounted to the C-type inner frame mounting structure, a rotation center of the C-type inner frame is adjusted by the method for adjusting a rotation center of the C-type inner frame according to any one of claims 1 to 13;
    the C-shaped inner frame mounting structure comprises:
    the first mounting plate (1) is provided with a first mounting hole (11) corresponding to a first reserved hole at the lower part of the C-shaped rack (101) of the C-shaped inner rack, and the first mounting plate (1) is used for fixing the lower part of the C-shaped rack (101) of the C-shaped inner rack through a first thread adjusting piece;
    the second mounting plate (2) is positioned above the first mounting plate (1), a second mounting hole (21) corresponding to a second reserved hole in a clamping table (103) on the upper portion of the C-shaped inner rack is formed in the second mounting plate (2), and the second mounting hole (21) is used for fixing the clamping table (103) on the upper portion of the C-shaped inner rack through a second threaded adjusting piece;
    the first mounting hole (11) and/or the second mounting hole (21) are waist-shaped holes, and the diameters of the first mounting hole (11) and the second mounting hole (21) are respectively larger than the outer diameters of corresponding threaded adjusting pieces, so that the C-shaped inner rack can move and rotate relative to the C-shaped inner rack mounting structure.
  15. 15. The C-type internal frame mounting structure of claim 14, further comprising:
    the connecting frame (3), first mounting panel (1) is located one side of connecting frame (3), and one end fixed connection in the lower part of connecting frame (3), second mounting panel (2) fixed connection in the upper portion of connecting frame (3).
  16. 16. The C-type internal frame mounting structure of claim 15, further comprising:
    the debugging plate (4), debugging plate (4) fixed connection in link (3), the upper surface of debugging plate (4) is the plane for place the spirit level in order to measure the levelness of debugging plate (4) upper surface.
CN202110886296.1A 2021-08-03 2021-08-03 C-shaped inner frame rotation center debugging method and C-shaped inner frame mounting structure Active CN113624132B (en)

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