IFU common space adjusting device of optical fiber array telescope

Abstract

The invention belongs to the astronomical instrument and technical field, and discloses an IFU common space adjusting device of an optical fiber array telescope, which realizes the translation position adjustment of a light spot on an optical fiber array end target surface in the X direction and the Y direction by adjusting a precision screw; a Z-direction telescopic mechanism rod is pulled to achieve focusing adjustment; the requirement of forward incidence of a light spot and an optical fiber array end is met by adjusting the rotating positions of the ball joint mechanism in the XZ direction and the YZ direction; and the XY direction rotation adjusting mechanism realizes rotation difference angle adjustment of the light spot and the IFU micro lens array end. Accurate installation of equipment and the adjusting device can be guaranteed, and the problems that common-space optical adjustment is sensitive in feedback, large in operation difficulty and the like are effectively solved. The invention has the characteristics of stable structure size, good rigidity, strong optical adjustment resetability, easy judgment of adjustment result, simple operation and the like.

Description

Technical Field

[0001] The invention belongs to the field of astronomical instruments and technologies, in particular to an IFU common space adjustment device for a fiber array telescope. Background Art

[0002] Spectral observation mode is one of the conventional observation methods of modern solar telescopes. In the spectrometers equipped with different spectral observation modes, the aperture structure is generally dominated by slits. With the development of astronomical instruments and technologies in recent years, fiber array slits have gradually been used more and more. In the previous slit spectrometers, only the light transmitted by the slit is dispersed each time, so the information obtained is the spectral information of a certain depth range corresponding to the slit in the field of view. When the spectrum of one surface of a star is to be collected, the area needs to be scanned. Since the scanning takes time, the information obtained is not simultaneous, especially in the field of magnetic field inversion of solar polarization observation. This non-simultaneous observation brings certain observation errors. Unlike slits, the fiber array corresponds to a two-dimensional surface in the field of view. On this surface, the spectral information of a certain depth of the star can be obtained simultaneously, which greatly improves the accuracy of the spectral acquisition of the equipment. This fiber array is called an integral field unit (IFU), which obtains complete field information by integrating several units in the entire observation field. The optical fiber array IFU is mainly divided into two ends: the array end and the slit end. After the light is imaged by the telescope and the back-end, it converges at the lens array end to form a certain light spot. The light beam is transmitted to the slit end through the optical fiber and then emitted. One end of the optical fiber bundle is arranged on a surface of the array end, and the other end is arranged on the line at the slit end. In this way, the light information of the two-dimensional surface can be arranged into vertical light information, and then the spectrum obtained by the spectrometer dispersion is the spectral information of the two-dimensional surface in the field of view. However, IFU has strict requirements for the posture position of the back end of the telescope: the imaging focus of the telescope and the back-end system should be located at the IFU array end, that is, the surface of the array end needs to coincide with the focal plane of the back end of the telescope, and different devices have specific requirements for the rotation angle between the array end face and the light spot. Especially in the field of polarization measurement, the back end of a general telescope separates light into two beams, o light and e light, and both beams need to be irradiated on the corresponding two fiber array IFUs at the same time. Therefore, there are common space adjustment requirements at the array ends of the two IFUs: both the o light and e light split paths need to be strictly focused, and the corresponding relationship between the light spot image and the array end surface must be exactly the same. Therefore, this type of equipment has the following engineering difficulties: What is the basis for determining the corresponding relationship between the light spot images of the two light paths of o light and e light and the array end surface? Usually, the observation field of a telescope is small. For example, when the field of view is 1 arc minute and the array end is 60×60, when the 1 arc minute field of view spot is the circumscribed circle of 60×60 at the array end, the diameter of the light beam received by each optical fiber is about 0.7 arc seconds. Therefore, the optical adjustment in the common space must be feedback sensitive. IFU has high requirements for the incident angle of the incident light. In theory, the incident light is orthogonal to the array end face, but there will inevitably be errors in the actual engineering production of IFU, and this error is random, so it is necessary to determine the appropriate angle between the incident light and the array end for observation; When the field of view is coupled with all translation and rotation adjustments at the slit end, the basis for judging the adjustment is very misleading. The structural design form that reduces the coupling phenomenon of the adjustment dimensions is directly related to the smooth progress of the work.

[0003] Structural rigidity directly affects the corresponding attitude stability between the IFU array end and the rear end of the telescope. Good rigidity is the guarantee of observation accuracy. Summary of the invention

[0004] The purpose of the present invention is to address the deficiencies in the above-mentioned prior art and to invent an IFU common space adjustment device for a fiber array telescope, which has the characteristics of intuitive feedback, accurate debugging, ideal effect, high work efficiency, and good structural stability in the common space adjustment work process.

[0005] The technical solution adopted by the present invention is: An IFU common space adjustment device for a fiber array telescope, comprising an IFU detection unit, an XZ and YZ direction rotation adjustment ball head and a locking mechanism component thereof, an X and Y direction translation adjustment plate and a precision adjustment screw group and a locking mechanism component thereof, a CCD optical path mechanism component for adjusting monitoring, an XY direction rotation adjustment and a locking mechanism component thereof, a Z direction pull-out focus adjustment and a locking mechanism component thereof, and a filter installation component; The IFU detection part is set from top to bottom along the axial direction of the CCD optical path mechanism component for adjustment and monitoring as the X direction, along the axial direction of the IFU detection part as the Z direction, and orthogonal to the X direction and the Z direction as the Y direction; The XZ and YZ direction rotation adjustment ball head and its locking mechanism components are composed of a ball head, a ball head adjustment spring locking screw group and a ball seat, and the IFU detection part is installed on the ball head; The X-direction and Y-direction translation adjustment plates and precision adjustment screw groups and their locking mechanism components are composed of a Y-direction translation adjustment plate, a Y-direction translation guide rail group, a Y-direction translation precision adjustment screw group, an X-direction translation adjustment plate (3-4), an X-direction translation guide rail group, an X-direction translation precision adjustment screw group and a translation base; The CCD optical path mechanism component for adjusting and monitoring is composed of an imaging CCD, an imaging mirror group, and a semi-transparent and semi-reflective mirror group; The XY direction rotation adjustment and locking mechanism components are composed of a rotating base, an XY direction rotation precision adjustment screw group and an XY direction rotation locking screw; The Z-direction pull-out focusing and locking mechanism components are composed of a Z-direction translation guide rail group, a Z-direction translation adjustment plate and a Z-direction translation adjustment seat, a Z-direction translation locking screw, a Z-direction translation adjustment base and a shading plate; The Z-direction pull-out focusing and locking mechanism components have a reserved mounting opening for mounting a filter mounting component.

[0006] Preferably, in the XZ and YZ direction rotation adjustment ball head and its locking mechanism component, the ball head is a hollow structure, which is used for the IFU detection part to have a certain inclination adjustment margin with the Z direction without cutting the light, thereby realizing the XZ and YZ direction rotation adjustment; In the X-direction and Y-direction translation adjustment plates, the precision adjustment screw group and the locking mechanism components thereof, the Y-direction translation adjustment plate is used to perform positive and negative translation adjustment of a certain distance on the Y-direction translation guide rail group, and the X-direction translation adjustment plate is used to perform positive and negative translation adjustment of a certain distance on the X-direction translation guide rail group; In the CCD optical path mechanism component for adjusting monitoring, the semi-transparent and semi-reflective mirror group is used to reflect the image of the light spot irradiated on the IFU detection part to the imaging CCD for imaging, providing a reference for the position adjustment of the field of view and the array end of the IFU detection part; The X-direction and Y-direction translation adjustment plate and the precision adjustment screw group and its locking mechanism components and the XY-direction rotation adjustment and its locking mechanism components are both rotated in the XY direction through the XY-direction rotation precision adjustment screw group and locked by the XY-direction rotation locking screw; The Z-direction translation adjustment seat and the Z-direction translation adjustment base both realize device focusing through the Z-direction translation guide rail group, and realize locking by pressing the Z-direction translation adjustment plate through the Z-direction translation locking screw.

[0007] Preferably, one of the XZ and YZ direction rotation adjustment ball heads and its locking mechanism components includes three ball head adjustment spring locking screw groups, the ball head adjustment spring locking screw group consists of an external hexagonal screw, two copper threaded ball heads and a spring, with the Z direction as the axis, the three ball head adjustment spring locking screw groups are arranged on the plane of the ball seat at an angle of 120° in pairs; the IFU detection part mounting flange surface on the upper part of the ball head is parallel to the flange surface of the ball seat, so that the IFU detection part is parallel to the Z direction; In the X-direction and Y-direction translation adjustment plates, the precision adjustment screw group and the locking mechanism components, the initial debugging position of the Y-direction translation adjustment plate is the middle of the Y-direction translation guide rail group, and the initial debugging position of the X-direction translation adjustment plate is the middle of the X-direction translation guide rail group; The initial debugging position angle between the X-direction and Y-direction translation adjustment plate and the precision adjustment screw group and its locking mechanism components and the XY-direction rotation adjustment and its locking mechanism components is 0; The initial debugging position of the Z-direction translation adjustment seat is located in the middle of the Z-direction translation guide rail group, so that the array end of the IFU detection part coincides with the theoretical object plane at the rear end of the telescope.

[0008] Preferably, the rotation point between the ball head and the ball seat coincides with the midpoint of the IFU array end, that is, when the angle between the IFU detector and the Z axis is adjusted, the midpoint of the array end of the IFU detector does not shift relative to the spatial position of the overall device, and will not be coupled with other motion adjustment dimensions; The gap between the Y-direction translation adjustment plate and the X-direction translation adjustment plate is between 0-0.05 mm to ensure the light shielding property of the device; The rotating base and the X-direction translation adjustment plate have a sleeve structure, and the matching tolerance is between 0-0.05mm to ensure the coaxiality of the rotation; The matching clearance tolerance between the shading plate and the Z-direction translation guide rail assembly, the Z-direction translation adjustment seat, and the Z-direction translation adjustment base is 0-0.05mm to avoid the introduction of stray light.

[0009] Each translation and rotation adjustment dimension is independent of each other, and there is no adjustment coupling phenomenon, making the adjustment work smoother and more convenient; all translation adjustment dimensions use precision slider guide groups with good dimensional stability and good structural rigidity.

[0010] The common space adjustment optical feedback is sensitive, the adjustment feedback is delicate and controllable, and the adjustment efficiency is high. The adjustment order of the present invention is reasonable. The corresponding adjustment monitoring CCD optical path mechanism component presents the IFU light spot image illumination situation logic is: first present a clear light spot image to achieve focus, that is, Z direction translation adjustment to determine the position; according to the characteristics of the light spot image, adjust the position in the x direction and the y direction to achieve the position correspondence between the image and the IFU array end; adjust the XY direction rotation to achieve the rotation angle relationship between the position of the light spot image and the IFU array end, thereby achieving common space adjustment.

[0011] The present invention uses the CCD optical path mechanism component for adjusting monitoring to provide intuitive feedback on the debugging result. The debugging process is verified through actual operation. The method is effective and can serve as a very good reference and reference for the debugging of similar equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a schematic diagram of the disassembly explosion provided by the present invention.

[0013] Reference numerals: 1. IFU detection unit; 2. XZ and YZ direction rotation adjustment ball head and its locking mechanism components; 2-1. Ball head; 2-2. Ball head adjustment spring locking screw group; 2-3. Ball seat; 3. X and Y direction translation adjustment plate and precision adjustment screw group and its locking mechanism components; 3-1. Y direction translation adjustment plate; 3-2. Y direction translation guide rail group; 3-3. Y direction translation precision adjustment screw group; 3-4. X direction translation adjustment plate; 3-5. X direction translation guide rail group; 3-6. X direction translation precision adjustment screw group; 3-7. Translation base; 4. Adjustment monitoring CCD Optical path mechanism components; 4-1, imaging CCD; 4-2, imaging lens group; 4-3, semi-transparent and semi-reflective mirror group; 5, XY direction rotation adjustment and its locking mechanism components; 5-1 rotating base; 5-2, XY direction rotation precision adjustment screw group; 5-3, XY direction rotation locking screw; 6, Z direction pull-out focusing and its locking mechanism components; 6-1, Z direction translation guide group; 6-2, Z direction translation adjustment plate; 6-3, Z direction translation adjustment seat; 6-4, Z direction translation locking screw; 6-5, Z direction translation adjustment base; 6-6, shading plate; 7, filter installation components. DETAILED DESCRIPTION

[0014] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0015] For common space adjustment, there are two IFU 1s at the rear end of a telescope system that need to be adjusted. Common space adjustment is achieved when the images of the two IFU 1s are located at the same position at their array ends.

[0016] The axial direction along the CCD optical path mechanism component for adjustment and monitoring is set as the X direction, the axial direction along the IFU detection part is set as the Z direction, and the directions orthogonal to the X direction and the Z direction are set as the Y direction; An IFU common space adjustment device for a fiber array telescope, comprising an IFU, a rotation adjustment ball head in XZ and YZ directions and a locking mechanism component thereof, an X and Y direction translation adjustment plate and a precision adjustment screw group and a locking mechanism component thereof, a CCD optical path mechanism component for adjusting monitoring, an XY direction rotation adjustment and a locking mechanism component thereof, a Z direction pull-out focusing and a locking mechanism component thereof, and a filter installation component; The IFU is a columnar structure, and its array end is mounted on the XZ and YZ direction rotation adjustment ball head and its locking mechanism components; The XZ and YZ direction rotation adjustment ball head and its locking mechanism components are composed of a ball head, a ball head adjustment spring locking screw group and a ball seat; the center of the ball head coincides with the center of the IFU array end; The X-direction and Y-direction translation adjustment plates and precision adjustment screw groups and their locking mechanism components are composed of a Y-direction translation adjustment plate, a Y-direction translation guide rail group, a Y-direction translation precision adjustment screw group, an X-direction translation adjustment plate, an X-direction translation guide rail group, an X-direction translation precision adjustment screw group and a translation base; The CCD optical path mechanism component for adjusting and monitoring is composed of an imaging CCD, an imaging mirror group and a semi-transparent and semi-reflective mirror group; The XY direction rotation adjustment and locking mechanism components are composed of a rotating base, an XY direction rotation precision adjustment screw group, and an XY direction rotation locking screw; The Z-direction pull-out focusing and locking mechanism components are composed of a Z-direction translation guide rail group, a Z-direction translation adjustment plate and a Z-direction translation adjustment seat, a Z-direction translation locking screw, a Z-direction translation adjustment base and a shading plate; The Z-direction pull-out focusing and locking mechanism components have a reserved mounting opening for mounting a filter mounting component.

[0017] The total space adjustment is divided into three steps: 1. Initial adjustment; 2. Rough adjustment; 3. Fine adjustment as follows: 1. Initial adjustment: Adjust the six dimensions of X-direction translation, Y-direction translation, Z-direction translation, XY-direction rotation, XZ-direction rotation, and YZ-direction rotation to the initial state; Insert IFU 1 into ball head 2-1 and tighten it so that the axis of IFU 1 is in the Z direction and reaches the initial state of rotation adjustment in the XZ and YZ directions; Move the middle position of the Y-direction translation adjustment plate 3-1 to the middle position of the Y-direction translation guide rail group 3-2; move the middle position of the X-direction translation adjustment plate 3-4 to the middle position of the X-direction translation guide rail group 3-5 to achieve the initial state of translation adjustment in the X and Y directions. Then adjust the precision adjustment screws at both ends of the XY-direction rotation precision adjustment screw group 5-2 so that the exposed thread lengths at both ends are equal, to achieve the initial angle relationship between the translation base 3-7 and the rotation base 5-1, that is, to achieve the initial state of XY-direction rotation adjustment; Move the Z-direction translation adjustment seat 6-3 to the middle position of the Z-direction translation guide rail group 6-1 to reach the initial state of the Z-direction translation adjustment. From then on, the IFU common space adjustment device reaches the initial adjustment states of the initial X-direction, Y-direction, Z-direction and XY-direction, XZ-direction, and YZ-direction.

[0018] 2. Coarse adjustment The coarse adjustment stage can only determine the precise position of the Z-direction translation and the XZ and YZ-direction rotation, and the X-direction and Y-direction translation adjustment can only be roughly positioned; After the telescope is pointed at the sun, light is irradiated to the array end of IFU 1 to form a light spot, and the light spot image of the surface of the array end of IFU 1 is presented on the CCD optical path mechanism component 4 for adjustment and monitoring; Pull out the Z-direction translation adjustment seat 6-3 and move it on the Z-direction translation guide rail group 6-1. When the light spot image of the IFU 1 array end surface presented by the CCD optical path mechanism component 4 for adjustment monitoring becomes the clearest, the position of the Z-direction translation adjustment seat 6-3 is confirmed, and the Z-direction translation locking screw 6-4 is locked to complete the Z-direction translation adjustment and achieve system focusing.

[0019] Adjust the ball head adjustment spring locking screw group 2-2 to a loose state, randomly rotate the IFU 1, that is, drive the ball head 2-1 to rotate accordingly in the ball seat 2-3. When the light spot image of the IFU 1 array end surface presented by the CCD optical path mechanism component 4 for adjustment monitoring increases to the brightest, the angular relationship between the IFU 1 and the optical path is confirmed, and the ball head adjustment spring locking screw group 2-2 is locked to complete the rotation adjustment in the XZ and YZ directions; Adjust the Y-direction translation precision adjustment screw group 3-3, push the Y-direction translation adjustment plate 3-1 to move on the Y-direction translation guide rail group 3-2, and when the light spot image of the IFU 1 array end surface presented by the CCD optical path mechanism component 4 for adjustment and monitoring increases to the brightest, the position of the Y-direction translation adjustment plate 3-1 is confirmed, and the Y-direction translation precision adjustment screw group 3-3 is tightened to make the Y-direction translation adjustment plate 3-1 immovable. Adjust the X-direction translation precision adjustment screw group 3-6, push the X-direction translation adjustment plate 3-4 to move on the X-direction translation guide rail group 3-5, and when the light spot image of the IFU 1 array end surface presented by the CCD optical path mechanism component 4 for adjustment and monitoring increases to the brightest, the position of the X-direction translation adjustment plate 3-4 is confirmed, and the X-direction translation precision adjustment screw group 3-6 is tightened to make the X-direction translation adjustment plate 3-4 immovable, thus completing the X-direction and Y-direction translation rough adjustment.

[0020] 3. Fine adjustment The precise adjustment stage can determine the precise position of the X and Y translations and the precise position of the XY rotation adjustment; When the telescope is aimed at sunspots during the day or at small-scale celestial bodies at night, light is irradiated onto the IFU 1 array end to form a light spot with a structure, and an image of the light spot with a structure on the surface of the IFU 1 array end is presented on the CCD optical path mechanism component 4 for adjustment and monitoring.

[0021] According to the light spot image containing the structure on the IFU 1 array end surface presented on the CCD optical path mechanism component 4 for adjusting the monitoring, the structure in the image of the two IFU 1 and the corresponding IFU can be determined. 1. The position deviation of the array end; according to the deviation, find the specific position of the Y-direction translation adjustment plate 3-1 on the Y-direction translation guide rail group 3-2 by adjusting the Y-direction translation precision adjustment screw group 3-3; find the specific position of the X-direction translation adjustment plate 3-4 on the X-direction translation guide rail group 3-5 by adjusting the X-direction translation precision adjustment screw group 3-6, tighten the Y-direction translation precision adjustment screw group 3-3 and the X-direction translation precision adjustment screw group 3-6, so that the Y-direction translation adjustment plate 3-1 and the X-direction translation adjustment plate 3-4 cannot move, thereby realizing the precise position adjustment of the X-direction and Y-direction translation; according to the deviation, adjust the XY-direction rotation precision adjustment screw group 5-2 to determine the angle between the translation base 3-7 and the rotation base 5-1, and lock the XY-direction rotation locking screw 5-3, thereby realizing the precise position of the XY-direction rotation adjustment. The final judgment basis is: in the IFU common space adjustment devices corresponding to the two IFU detection parts 1, the corresponding relationship of the light spot images containing structures on the IFU 1 array end surface presented on the CCD optical path mechanism component 4 for adjustment monitoring is the same, that is, the common space adjustment is completed; The filter mounting component 7 is replaced according to the specific observation target.

[0022] The working principle of the present invention is as follows: by adjusting the rotation of the ball head in the ball seat, the rotation adjustment in the XZ and YZ directions of the present invention is realized; by adjusting the position of the Y direction translation adjustment plate on the Y direction translation guide rail group, the Y direction translation adjustment of the present invention is realized; by adjusting the position of the X direction translation adjustment plate on the X direction translation guide rail group, the X direction translation adjustment of the present invention is realized; by adjusting the angle between the translation base and the rotating base, the XY direction rotation adjustment of the present invention is realized; by adjusting the position of the Z direction translation adjustment seat on the Z direction translation guide rail group, the Z direction translation adjustment of the present invention is realized.

[0023] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An IFU common space adjustment device for a fiber array telescope, characterized in that: It comprises an IFU detection part (1), an XZ and YZ direction rotation adjustment ball head and a locking mechanism component (2), an X direction and Y direction translation adjustment plate and a precision adjustment screw group and a locking mechanism component (3), a CCD optical path adjustment mechanism component for monitoring (4), an XY direction rotation adjustment and a locking mechanism component (5), a Z direction pull-out focus adjustment and a locking mechanism component (6), and a filter installation component (7); The IFU detection part (1) is set from top to bottom with the axial direction along the CCD optical path mechanism component (4) for adjusting and monitoring as the X direction, the axial direction along the IFU detection part (1) as the Z direction, and the Y direction orthogonal to the X direction and the Z direction respectively; The XZ and YZ direction rotation adjustment ball head and its locking mechanism component (2) are composed of a ball head (2-1), a ball head adjustment spring locking screw group (2-2) and a ball seat (2-3), and the IFU detection part (1) is installed on the ball head (2-1); The X-direction and Y-direction translation adjustment plates and precision adjustment screw groups and their locking mechanism components (3) are composed of a Y-direction translation adjustment plate (3-1), a Y-direction translation guide rail group (3-2), a Y-direction translation precision adjustment screw group (3-3), an X-direction translation adjustment plate (3-4), an X-direction translation guide rail group (3-5), an X-direction translation precision adjustment screw group (3-6) and a translation base (3-7); The CCD optical path mechanism component (4) for adjusting and monitoring is composed of an imaging CCD (4-1), an imaging mirror group (4-2), and a semi-transparent and semi-reflective mirror group (4-3); The XY direction rotation adjustment and locking mechanism component (5) is composed of a rotating base (5-1), an XY direction rotation precision adjustment screw group (5-2) and an XY direction rotation locking screw (5-3); The Z-direction pull-out focusing and locking mechanism component (6) is composed of a Z-direction translation guide rail group (6-1), a Z-direction translation adjustment plate (6-2), a Z-direction translation adjustment seat (6-3), a Z-direction translation locking screw (6-4), a Z-direction translation adjustment base (6-5) and a light shielding plate (6-6); The Z-direction pull-out focusing and locking mechanism component (6) has a reserved mounting opening for mounting a filter mounting component (7).

2. The IFU common space adjustment device for a fiber array telescope according to claim 1, characterized in that: In the XZ and YZ direction rotation adjustment ball head and its locking mechanism component (2), the ball head (2-1) is a hollow structure, which is used for the IFU detection part (1) to have a certain tilt adjustment margin with the Z direction without cutting off the light, thereby realizing XZ and YZ direction rotation adjustment; In the X-direction and Y-direction translation adjustment plates and precision adjustment screw groups and their locking mechanism components (3), the Y-direction translation adjustment plate (3-1) is used to perform positive and negative translation adjustment of a certain distance on the Y-direction translation guide rail group (3-2), and the X-direction translation adjustment plate (3-4) is used to perform positive and negative translation adjustment of a certain distance on the X-direction translation guide rail group (3-5); In the CCD optical path mechanism component (4) for adjusting monitoring, the semi-transparent and semi-reflective mirror group (4-3) is used to reflect the image of the light spot irradiated on the IFU detection part (1) onto the imaging CCD (4-1) for imaging, thereby providing a reference for adjusting the position of the field of view and the array end of the IFU detection part (1); The X-direction and Y-direction translation adjustment plate and the precision adjustment screw group and its locking mechanism component (3) and the XY-direction rotation adjustment and its locking mechanism component (5) both realize rotation in the XY direction through the XY-direction rotation precision adjustment screw group (5-2) and are locked by the XY-direction rotation locking screw (5-3); The Z-direction translation adjustment seat (6-3) and the Z-direction translation adjustment base (6-5) both achieve device focusing via a Z-direction translation guide rail assembly (6-1), and achieve locking by pressing the Z-direction translation adjustment plate (6-2) via a Z-direction translation locking screw (6-4).

3. The IFU common space adjustment device for a fiber array telescope according to claim 2, characterized in that: The XZ and YZ direction rotation adjustment ball head and its locking mechanism component (2) include three ball head adjustment spring locking screw groups (2-2), the ball head adjustment spring locking screw group (2-2) is composed of an external hexagonal screw, two copper threaded ball heads and a spring, and the three ball head adjustment spring locking screw groups (2-2) are arranged on the plane of the ball seat (2-3) at an angle of 120° in pairs with the Z direction as the axis; the mounting flange surface of the IFU detection part (1) on the upper part of the ball head (2-1) is parallel to the flange surface of the ball seat (2-3), so that the IFU detection part (1) is parallel to the Z direction; In the X-direction and Y-direction translation adjustment plates, precision adjustment screw groups and locking mechanism components (3), the initial debugging position of the Y-direction translation adjustment plate (3-1) is the middle of the Y-direction translation guide rail group (3-2), and the initial debugging position of the X-direction translation adjustment plate (3-4) is the middle of the X-direction translation guide rail group (3-5); The initial debugging position angle between the X-direction and Y-direction translation adjustment plate and the precision adjustment screw set and its locking mechanism component (3) and the XY-direction rotation adjustment and its locking mechanism component (5) is 0; The initial debugging position of the Z-direction translation adjustment seat (6-3) is located in the middle of the Z-direction translation guide rail group (6-1), so that the array end of the IFU detection part (1) coincides with the theoretical object plane at the rear end of the telescope.

4. The IFU common space adjustment device for a fiber array telescope according to claim 3, characterized in that: The rotation point between the ball head (2-1) and the ball seat (2-3) coincides with the midpoint of the array end of the IFU detection part (1), that is, when the angle between the IFU detection part (1) and the Z axis is adjusted, the midpoint of the array end of the IFU detection part (1) does not deviate relative to the spatial position of the overall device, and thus does not couple with other motion adjustment dimensions; The gap between the Y-direction translation adjustment plate (3-1) and the X-direction translation adjustment plate (3-4) is 0-0.05 mm to ensure the light shielding property of the device; The rotating base (5-1) and the X-direction translation adjustment plate (3-4) have a sleeve structure, and the matching tolerance is 0-0.05mm to ensure the coaxiality of the rotation; The matching clearance tolerance between the light shielding plate (6-6), the Z-direction translation guide rail assembly (6-1), the Z-direction translation adjustment seat (6-3), and the Z-direction translation adjustment base (6-5) is 0-0.05 mm, thereby avoiding the introduction of stray light.

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