A diagonal control telescopic floating alignment device

Abstract

The application belongs to the technical field of equipment optical module installation, and particularly relates to a floating alignment device for controlling the extension and retraction of a guide pin in a diagonal direction, which is used for the alignment of a floating structure and an adaptive structure. The floating structure is fixedly arranged on a corresponding clamping device, and the clamping device is floatingly arranged to realize the floating arrangement of the floating structure. The clamping device is provided with a guide pin capable of extending and retracting in the alignment direction, and the adaptive structure is provided with a guide pin hole II. When the guide pin extends, the guide pin can be inserted into the guide pin hole II to realize the alignment of the floating structure and the adaptive structure. The insertion end of the guide pin and the guide pin hole II is provided with a chamfer capable of guiding the insertion. The guide pin is threadedly connected with a threaded hole at the center position of a worm wheel, the guide pin is rotationally arranged on the clamping device, the worm wheel is rotationally arranged on the clamping device and is engaged with a worm, and the worm is rotationally arranged on the clamping device. The device can control the extension and retraction of the guide pin in the diagonal direction, and can realize the alignment of the optical module.

Description

Technical Field

[0001] This invention belongs to the field of equipment optical module installation technology, specifically relating to a floating alignment device with oblique control telescopic extension. Background Technology

[0002] Compared to wireless transmission, traditional wired transmission (such as fiber optic cables) has shortcomings in terms of deployment cost, flexibility, and environmental adaptability. Wireless optical transmission has great advantages in short-distance high-speed interconnection, emergency communication, and complex scenarios, with advantages such as no wiring required, high bandwidth, anti-interference, and security and controllability.

[0003] Since the divergence angle of the laser beam emitted by the laser module is usually only on the order of microradians, if the alignment deviation of the transmitting and receiving ends exceeds the coverage range of the beam, the signal will not be received at all. Alignment error will cause the optical signal to fail to couple effectively into the optical fiber or to become "out of alignment" during transmission, resulting in attenuation and increased bit error rate. Therefore, in the process of wireless optical transmission, the alignment error of the paired wireless optical modules should be minimized as much as possible.

[0004] The accumulation of tolerance dimensional chains in mechanical structures is the main source of alignment errors. The solution is usually to design locating pin holes and guide pins on the housing of the optical module. Alignment is achieved by guiding the guide pins and locating pin holes, thus reducing the accumulation of errors in the dimensional chain.

[0005] The optical module requires sufficient operating space on its back for pushing the guide pins. However, as a module that transmits signals in complex environments, the space around the optical module is extremely valuable, especially since the back often houses complex other circuit components, making it very inconvenient to operate the guide pins from the back. For highly integrated structures, the side of the module is an ideal location to control the extension and retraction of the guide pins. Therefore, this invention uses a worm gear and lead screw structure to achieve oblique control of the guide pin extension and retraction, which can save space while providing convenient control for the alignment of the guide pin extension and retraction. Summary of the Invention

[0006] To address the technical problem of inconvenient alignment of optical modules via guide pins, this invention provides a floating alignment device with obliquely controlled extension and retraction.

[0007] The objective of this invention is achieved through the following technical solution. A floating alignment device with oblique control and extension is proposed according to this invention, used for aligning a floating structure with its adapting structure. The floating structure is fixedly mounted on a corresponding clamping device, which is floating to achieve the floating configuration of the floating structure. The clamping device is equipped with a guide pin capable of extending and retracting along the alignment direction. The adapting structure is equipped with a guide pin hole II, which, when extended, can be inserted into to achieve alignment between the floating structure and the adapting structure. Both the guide pin and the guide pin hole II have chamfered ends to guide the insertion. The guide pin is threadedly connected to a threaded hole at the center of the worm gear. The guide pin is anti-rotationally mounted on the clamping device. The worm gear is rotatably mounted on the clamping device and meshes with the worm. The worm is rotatably mounted on the clamping device.

[0008] Furthermore, the sum of the dimensions of the chamfer of the guide pin and the guide pin hole II in the floating direction is greater than or equal to the floating gap.

[0009] Furthermore, the adapter structure is fixedly mounted on the corresponding clamping device, and the clamping device corresponding to the adapter structure has the same structure as the clamping device corresponding to the floating structure.

[0010] Furthermore, the clamping device corresponding to the adapter structure is floating.

[0011] Furthermore, the floating alignment device is installed on the equipment, a floating shell is installed on the equipment, a clamping device is installed inside the floating shell, and the outer wall of the clamping device and the inner wall of the floating shell have a floating gap.

[0012] Furthermore, the device includes a housing, a floating hole on the side plate of the housing, a floating housing on the inner wall of the side plate, one side of the floating housing being open and covering the floating hole, a clamping device floatingly engaging with the floating hole, and a guide pin extending out of the clamping device and the floating hole and inserting into the guide pin hole II of another device; the device's mounting panel is provided with an operation hole I, the floating housing is provided with an operation hole II aligned with the operation hole I, and the worm gear's operating part is aligned with the operation hole II.

[0013] Furthermore, the clamping device is provided with a guide pin hole III for inserting the guide pin, and the side of the guide pin is provided with a plane that matches the guide pin hole III to prevent rotation. The thread on the guide pin is provided on the arc surface between the planes.

[0014] Furthermore, the clamping device includes a retaining shell and a rear cover, and the floating structure is an optical module, which is disposed between the retaining shell and the rear cover.

[0015] Furthermore, the card case is provided with a guide pin hole I, and the rear cover is provided with a guide pin hole III aligned with the guide pin hole I. The guide pin includes a guide part for insertion into the guide pin hole II and an anti-rotation part that cooperates with the anti-rotation part of the guide pin hole III. When the guide pin is retracted, the guide part is located in the guide pin hole I. The card case is also provided with a guide pin hole II for interlocking with a guide pin on another device.

[0016] Furthermore, the rear cover includes a rear cover I and a rear cover II. The rear cover I has a mounting cavity for mounting the worm gear and worm. The rear cover II covers and closes the mounting cavity and blocks the worm. The rear cover I has an operating hole III that penetrates the rear cover I and communicates with the mounting cavity. The operating part of the worm is located in the operating hole III.

[0017] Compared with the prior art, the advantages of the present invention are:

[0018] To facilitate convenient assembly and disassembly of the equipment, a modular design is adopted. During installation, the equipment can be directly assembled in confined spaces. The guide pins are concealed within the equipment during assembly, making it easy to install within limited spaces. This invention controls the extension and retraction of the guide pins to meet the needs of scenarios requiring convenient insertion and removal. This invention can be applied to wireless optical transmission scenarios, where equipment structures are often highly integrated and space is extremely valuable. The internal structure typically contains circuit boards and numerous electronic components, leaving limited usable space. If a traditional lead screw is used to control the extension and retraction of the guide pins, the control position is along the axis of the lead screw, where there are many circuit boards and electronic components, making operation inconvenient. The device of this invention enables control of the guide pin extension and retraction in an oblique direction (i.e., not along the axial direction, which is the alignment direction of the optical module), achieving the alignment of the optical module.

[0019] The above description is merely an overview of the technical solution of the present invention. In order to better understand the technical means of the present invention and to implement it in accordance with the contents of the specification, and to make the purpose, features and advantages of the present invention more obvious and understandable, preferred embodiments are described below in detail with reference to the accompanying drawings. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the interlocking of optical modules in two devices in an embodiment of a floating alignment device for oblique control and telescopic movement according to the present invention.

[0021] Figure 2 for Figure 1 A sectional view along the length of the equipment;

[0022] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0023] Figure 4 for Figure 1A sectional view along the width of the equipment;

[0024] Figure 5 for Figure 4 Enlarged view of point B in the middle;

[0025] Figure 6 for Figure 2 Exploded view of the clamping device;

[0026] Figure 7 This is a schematic diagram showing the offset distance when the guide pin and guide pin hole II are inserted.

[0027] Figure label:

[0028] 1-Equipment housing, 11-Mounting panel, 12-Side panel, 13-Floating hole, 14-Operating hole I;

[0029] 2-Floating housing, 21-Operating port II;

[0030] 3-Clutch, 31-Guide pin hole I, 32-Guide pin hole II, 33-Floating protrusion, 34-Through hole;

[0031] 4-Rear cover I, 41-Guide pin hole III, 42-Clamping protrusion I, 43-Mounting cavity, 431-Limiting cavity, 432-Rotating cavity, 44-Operating hole III;

[0032] 5-Rear cover II, 51-Clamping protrusion II, 52-Blind hole;

[0033] 6-Guide pin, 61-Guide part, 62-Anti-rotation part;

[0034] 7 - Worm gear, 71 - Threaded hole;

[0035] 8-worm gear, 81-operating part, 82-stop plate;

[0036] 9-Optical module, 91-Optical section. Detailed Implementation

[0037] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0038] An embodiment of the floating alignment device for oblique control of telescopic movement according to the present invention, such as... Figures 1 to 6As shown. This device is used in pairs, installed in two separate units. In this embodiment, for ease of explanation, the two units are identical in structure and are designated as Unit I and Unit II. This invention allows for external operation, aligning the optical modules 9 within the two connected units to achieve stable and reliable signal transmission between the floating optical modules 9 within the two units.

[0039] like Figure 1 As shown, taking device I as an example for explanation, and using the end where the two devices are connected as the front end for explanation, device I includes a device housing 1. In this embodiment, device I has a rectangular structure as a whole. One side of the device housing 1 is a mounting panel 11, and the other side is a cover plate. Figure 1 (omitted), the mounting panel 11 and the cover plate are surrounded by side plates 12, forming an encapsulated device I. Circuit components are installed inside the device housing 1, and each side plate 12 is provided with a floating hole 13, which is a through hole penetrating the side plate 12. A floating shell 2 is provided on the inner wall of the side plate 12, with one side of the floating shell 2 open and covering the inside of the floating hole 13.

[0040] The device of this invention requires the positioning of guide pin 6 with guide pin hole II 32 on device II to achieve alignment between the optical modules 9 of the two devices. In this embodiment, the optical module 9 is a transceiver wireless optical module in the prior art. The lens material of the optical module 9 is resin, and the printed circuit board material is FR4, both of which are easily deformed. Therefore, guide pin 6 and guide pin hole II 32 should not be directly mounted on the optical module 9. For this reason, a clamping device is designed, such as... Figure 6 As shown.

[0041] The clamping device includes a retaining shell 3 and a rear cover, which includes rear cover I 4 and rear cover II 5. The retaining shell 3 is fixed to the rear covers I 4 and II 5 using bolts or screws. The optical module 9 is positioned between the retaining shell 3 and the rear covers I 4 and II 5, achieving a tight fixation between the optical module 9 and the clamping device, with no gap between them to prevent floating. The clamping device is located inside the floating housing 2, with a gap between the outer wall of the clamping device and the inner wall of the floating housing 2. Therefore, the clamping device can float within the floating housing 2 in the up, down, left, right, forward, and backward directions, effectively increasing the vibration resistance of the guide pin 6 and ensuring structural strength.

[0042] The front end of the clasp 3 is provided with a floating protrusion 33, and guide pin holes I31 and II32 are respectively provided on both sides of the floating protrusion 33. The floating protrusion 33 is inserted into the floating hole 13, and there is a gap between the side wall of the floating protrusion 33 and the inner wall of the floating hole 13, which can prevent the floating hole 13 from blocking the normal floating of the clamping device.

[0043] The rear end of the housing 3 has a groove, in which the optical module 9 is nested. Rear covers I 4 and II 5 cover the rear end of the housing 3, clamping the optical module 9 within the housing 3 to prevent it from shaking. To achieve better clamping, the front end of the rear cover I 4 has a clamping protrusion I 42, and the front end of the rear cover II 5 has a clamping protrusion II 51. The clamping protrusions I 42 and II 51 extend into the groove at the rear end of the housing 3 and abut against the optical module 9, thus clamping and fixing the optical module 9.

[0044] The housing 3 is provided with a light passage hole 34 that runs through the front and back of the housing 3. The light part 91 of the optical module 9 (used to receive and transmit optical signals) is nested in the light passage hole 34. After the equipment is connected, the distance between the light parts 91 of the two optical modules 9 can be reduced, the loss can be reduced, and the alignment can be facilitated.

[0045] The rear cover I 4 houses the guide pin 6, worm gear 7, and worm 8. The rear cover I 4 also has a mounting cavity 43 for mounting the guide pin 6, worm gear 7, and worm 8. The mounting cavity 43 includes a limiting cavity 431 for mounting the worm gear 7 and a rotating cavity 432 for mounting the worm 8. The limiting cavity 431 and the rotating cavity 432 are connected. The mounting cavity 43 is open on one side facing the rear cover II 5, and the rear cover II 5 covers the open side of the rear cover I 4, sealing the mounting cavity 43.

[0046] The worm gear 7 is stopped and limited within the limiting cavity 431. The front and rear end faces of the worm gear 7 have gaps with the corresponding front and rear side walls of the limiting cavity 431, allowing the worm gear 7 to rotate within the limiting cavity 431. A threaded hole 71 is provided at the center of the worm gear 7. A guide pin hole III41 is provided on the rear cover I 4, extending through the rear cover I 4 and communicating with the limiting cavity 431. A guide pin 6 passes through the guide pin hole III41 and is threadedly connected to the threaded hole 71. The guide pin hole III41 is aligned with the guide pin hole I 31 on the retaining housing 3.

[0047] The guide pin 6 is cylindrical, with a guide portion 61 at its front end and an anti-rotation portion 62 at its rear end. The outer wall of the anti-rotation portion 62 is threaded. When the guide pin 6 is in the retracted state, the guide portion 61 is located in the guide pin hole I 31 of the retaining housing 3, and the anti-rotation portion 62 is located in the guide pin hole III 41. When the guide pin 6 is extended, the guide portion 61 is inserted into the guide pin hole II 32 of the clamping device in device II. There are gaps between the outer wall of the guide pin 6 and the inner walls of the guide pin hole I 31 and the guide pin hole III 41, allowing the guide pin 6 to slide within the guide pin hole I 31 and the guide pin hole III 41. The worm gear 7 is stopped and limited in the limiting cavity 431, and the worm gear 7 can rotate under the drive of the worm 8.

[0048] To prevent the guide pin 6 from rotating with the worm gear 7 and thus becoming unable to extend or retract, the two opposite sides of the anti-rotation part 62 are flattened to form two opposing planes. The cross-sectional shape of the guide pin hole III 41 is the same as that of the anti-rotation part 62. The anti-rotation part 62 and the guide pin hole III 41 are matched to achieve the anti-rotation setting. The thread on the anti-rotation part 62 is set on the arc surface between the two opposing planes, which can save the space occupied by the plane and thread on the guide pin 6, reduce the length of the guide pin 6, reduce the volume of the device, and reduce the space occupied in the equipment.

[0049] The threads on the outer surface of the guide pin 6 and the threaded hole at the center of the worm gear 7 form a "lead screw" structure. In order to prevent the guide pin 6 from rotating, its side is flattened. The structure of the rear cover I 4 restricts the front and rear displacement of the worm gear 7. When the worm gear 7 rotates, it can drive the guide pin 6 to achieve the telescopic function.

[0050] The worm gear 8 is disposed within the rotating cavity 432 and meshes with the worm wheel 7. An operating hole III44, perpendicular to the front-rear direction, penetrates the rear cover I 4, communicating with the rotating cavity 432 and facing the mounting panel 11. An operating hole II 21, aligned with operating hole III44, is provided on the floating housing 2, and an operating hole I14, aligned with operating hole II 21, is provided on the mounting panel 11. The diameters of both operating holes I14 and II 21 are larger than the diameter of operating hole III44. Furthermore, when the clamping device floats within the floating housing 2, the projection of operating hole III44 onto the floating housing 2 falls within the range of operating hole II 21, and its projection onto the mounting panel 11 falls within the range of operating hole I14. The worm 8 is rotatably mounted within the rotating cavity 432, and one end of the worm 8 is an operating part 81 located within the operating hole III 44. The outer wall of the operating part 81 has a gap with the inner wall of the operating hole III 44, allowing the worm 8 to rotate relative to the operating hole III 44. The end face of the operating part 81 has a slot. By using a flathead screwdriver to pass through the operating hole I 14 and the operating hole II 21 and engage with the slot, the worm 8 can be rotated, causing the worm 8 to drive the worm wheel 7 to rotate.

[0051] A stop 82 is provided near the operating part 81 on the worm gear 8. The stop 82 stops on the step on the inner wall of the operating hole III44. The outer wall of the stop 82 has a gap with the inner wall of the operating hole III44, so that the worm gear 8 can rotate relative to the operating hole III44. The other end of the worm gear 8 stops on the rear cover II5. In this embodiment, a blind hole 52 is provided on the rear cover II5. The other end of the worm gear 8 is inserted into the blind hole 52, thereby stopping the worm gear 8 in its length direction. The end of the worm gear 8 has a gap with the inner wall of the blind hole 52, so that the worm gear 8 can rotate relative to the blind hole 52.

[0052] In this embodiment, device II is also equipped with the device of the present invention. Both devices are configured with the device of the present invention in the same orientation and manner. After the two devices are aligned and docked, the guide pin 6 on device I extends out of the corresponding guide pin hole I 31 and inserts into the guide pin hole II 32 of device II; similarly, the guide pin 6 on device II extends out of the corresponding guide pin hole I 31 and inserts into the guide pin hole II 32 of device I, thus guiding the optical module 9. This configuration allows a pair of devices of the present invention to be assembled onto corresponding devices in the same way without distinction between male and female, avoiding reverse assembly. After the devices are docked and the guide pins 6 on both sides are inserted into the corresponding guide pin holes II 32, the optical modules 9 are aligned using the guide pins on both sides of the optical module 9.

[0053] Because the clamping device is floating relative to the floating housing 2 and the equipment housing 1, the guide pin 6 and the corresponding guide pin hole II 32 are usually not perfectly aligned when the two devices are docked. In order to allow the guide pin 6 to smoothly enter the guide pin hole II 32, the mating ends of the guide pin 6 and the guide pin hole II 32 are chamfered, and the chamfers of the guide pin 6 and the guide pin hole II 32 are calculated using a dimensional chain.

[0054] When the clamping devices on two mating devices are misaligned, such as Figure 7 As shown, Q is the flush line. The edge of the smallest diameter at the end of the guide pin 6 is aligned with the edge of the largest diameter at the guide pin hole II 32. At this time, the guide pin hole II 32 and the guide pin 6 have the largest offset distance. The projection of the cross section of the smallest diameter of the guide pin 6 in the front-back direction falls on the cross section of the largest diameter at the guide pin hole II 32. If this offset distance is exceeded, the guide pin 6 cannot be inserted into the guide pin hole II 32. The floating gap between the clamping device and the floating housing 2 is determined by calculating the maximum offset distance.

[0055] Define the radial (i.e., floating direction) dimension of the chamfer of guide pin 6 as D, the diameter of guide pin 6 as L, the radial dimension of the chamfer of guide pin hole II 32 as d, and the diameter of guide pin hole II 32 as H. Then the maximum offset distance P is:

[0056] P=d-(L-2D) / 2+H / 2=D+d+(HL) / 2

[0057] In practice, in order for the guide pin 6 to be smoothly inserted into the guide pin hole II 32, the diameter H of the guide pin hole II 32 must be greater than the diameter L of the guide pin 6, that is:

[0058] (HL) / 2>0

[0059] When the two devices are docked, the relative positions of the device housing 1 and the floating housing 2 can be determined by the structural dimensions of the two devices. This will not be elaborated further here; this invention only describes the floating of the clamping device relative to the floating housing 2 and the device housing 1. After setting the floating gap, the chamfer size needs to be determined based on the size of the floating gap. In this embodiment, the floating gap is 0.5mm, and the chamfer size D+d of the guide pin 6 and guide pin hole II 32 is ≥0.5mm. This ensures that when the clamping devices of the two devices are offset by 0.5mm, the guide pin 6 can smoothly enter the guide pin hole II 32, completing the alignment of the clamping devices, and thus completing the alignment of the optical module 9.

[0060] After the optical module 9 is securely fixed to the clamping device, it is placed in the floating housing 2. There is a gap between the clamping device and the floating housing 2. When the clamping device is in the middle position inside the floating housing 2, the gap between the clamping device and the floating housing 2 is 0.25mm in the upper, lower, left, and right directions. The front and rear gaps between the clamping device and the floating housing 2 are 0.2mm to prevent the clamping device from jamming and failing to float.

[0061] Along the side panels 12 of the two devices Figure 1 The length direction is aligned as shown. Then, the device of the present invention is operated on the mounting panel 11. During operation, a flathead screwdriver can be used to rotate the worm gear 8, causing the worm wheel 7 to rotate. The guide pin 6 of device I extends and mates with the guide pin hole II 32 of device II, and the guide pin 6 of device II extends and mates with the guide pin hole II 32 of device I. When the guide pin 6 mates with the guide pin hole II 32, since the optical module 9, which is fixed in the clamping device, is floatingly disposed in the floating housing 2, the orientation error of the two optical modules 9 can be corrected during the mating process, so that the optical modules 9 in the two devices are aligned. The present invention operates on the mounting panel 11 to align the optical modules 9, eliminating the need for operation inside the device, making it more convenient.

[0062] Existing guide pin structures are generally fragile. After the optical modules 9 are aligned using the guide pin structure, they are highly sensitive to vibration and deformation of the overall structure. Insufficient rigidity of the guide pin structure can lead to deformation, causing the optical modules 9 to misalign. Therefore, the guide pin structure requires a certain degree of rigidity to achieve precise insertion. This invention floats the two optical modules 9 that need to be aligned. The optical modules 9 are housed in a closed clamping device. The back cover (including back cover I 4 and back cover II 5) and the retainer 3 tightly enclose the optical modules 9 and place them as a whole into the floating housing 2. There are gaps between the clamping device and the floating housing 2 in all directions. The guide pins 6 guide the alignment of the optical modules 9. After the guide pins 6 and guide pin holes II 32 are inserted, the positions of the two optical modules 9 are relatively fixed, and they are simultaneously floated on their respective devices. The resulting structure is less affected by deformation and vibration. When the device vibrates or deforms, the optical modules 9 float, and the guide pins 6 float synchronously, preventing damage to the guide pins 6. Therefore, the vibration and deformation of the equipment will not be directly transmitted to the guide pin 6 of the clamping device, thus solving the problem that the guide pin structure is fragile and susceptible to vibration and deformation.

[0063] To facilitate convenient assembly and disassembly of the equipment, it is designed as a modular unit. During installation, the equipment can be directly assembled in confined spaces. The guide pin 6 is concealed within the equipment, making it easy to assemble and install within limited spaces. This invention controls the extension and retraction of the guide pin 6 to meet the needs of scenarios requiring convenient insertion and removal. This invention can be used in wireless optical transmission scenarios, where the equipment structure is often highly integrated and space is extremely valuable. The equipment typically contains circuit boards and numerous electronic components, leaving limited usable space. If the extension and retraction of the guide pin 6 is controlled by a traditional lead screw, the control position is along the axis of the lead screw, where there are many circuit boards and electronic components, making operation inconvenient. The device of this invention enables the control of the extension and retraction of the guide pin 6 in an oblique direction (i.e., not along the axis, which is the alignment direction of the optical module 9), thus achieving the alignment of the optical module 9.

[0064] Due to limitations in equipment structure and installation space, it is necessary to change the direction of the extension and retraction control of guide pin 6. Therefore, this invention designs a "worm gear and screw" structure to achieve oblique control of the extension and retraction of guide pin 6. This invention achieves direction-changing control through the cooperation of worm gear 7 and worm 8, changing the control direction to oblique. A flathead screwdriver controls the rotation of worm 8, which drives worm gear 7 to rotate. This, in conjunction with the "screw" structure, achieves the purpose of controlling the extension and retraction of guide pin 6 on the mounting panel 11.

[0065] In other embodiments of the present invention, the device of the present invention can be used for any structure that requires alignment guided by a guide pin, and is not limited to the alignment of the optical module 9 in the above embodiments. For example, it can be used for the alignment and mating of floating connectors. The floating structure (e.g., optical module 9, floating connector) is set in the clamping device, and the alignment of the floating structure with the corresponding floating adaptation structure (e.g., optical module 9 on device II aligned with optical module 9 on device I, connector adapted to floating connector) is achieved by the guide pin 6, worm gear 7, and worm 8 in the clamping device.

[0066] In other embodiments of the present invention, improvements are made based on the above embodiments. The clamping device on device I is floating, while the clamping device on device II is fixed. When there is an orientation error after the two devices are docked, the floating clamping device is inserted into the guide pin hole II 32 of the fixed clamping device through the guide pin 6, so that the optical module 9 can be aligned when the devices have an orientation error, and the distance of the orientation error does not exceed D+d.

[0067] In other embodiments of the present invention, improvements are made based on the above embodiments. The optical module 9 and guide pin holes II 32 of device II can be fixedly installed. Guide pin holes II 32 are provided on both sides of the optical module 9, and the guide pins 6, worm gears 7, and worm 8 are omitted. Two guide pins 6 are provided on device I, both of which are retractable. Each guide pin 6 can be equipped with a corresponding "worm gear and screw" structure, or the two guide pins 6 and their corresponding worm gears 7 can share the same worm 8. The two guide pins 6 extend and insert into the corresponding guide pin holes II 32 to align the optical module 9. Alternatively, the optical module 9 and the guide pin holes II 32 on both sides of device II can be installed on a corresponding clamping device. The clamping device is floating on the device, and the guide pins 6, worm gears 7, and worm 8 are not provided on the clamping device, thus achieving a floating installation of the optical module 9 and guide pin holes II 32.

[0068] In other embodiments of the present invention, improvements are made based on the above embodiments. The end of the operating part 81 may be provided with a cross groove, or other structures that facilitate operation and enable the worm 8 to rotate.

[0069] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A floating alignment device with oblique control telescopic movement, used for aligning a floating structure with its adapting structure, characterized in that: The floating structure is fixedly mounted on the corresponding clamping device, and the clamping device is floating to achieve the floating configuration of the floating structure. The clamping device is equipped with a guide pin (6) that can extend and retract along the alignment direction, and the adapter structure is equipped with a guide pin hole II (32). When the guide pin (6) extends, it can be inserted into the guide pin hole II (32) to achieve the alignment of the floating structure and the adapter structure. The mating ends of the guide pin (6) and the guide pin hole II (32) are both provided with chamfers to guide the mating. The guide pin (6) is threadedly connected to the threaded hole at the center of the worm gear (7). The guide pin (6) is anti-rotating and mounted on the clamping device. The worm gear (7) is rotatably mounted on the clamping device and meshes with the worm (8). The worm (8) is rotatably mounted on the clamping device. The floating alignment device is mounted on the equipment, and the equipment is equipped with a floating housing (2). The device is set inside the floating housing (2), and the outer wall of the clamping device has a floating gap with the inner wall of the floating housing (2); the device includes a housing (1), the side plate (12) of the housing (1) is provided with a floating hole (13), the floating housing (2) is set on the inner wall of the side plate (12), one side of the floating housing (2) is open and covers the floating hole (13), the clamping device floats and cooperates with the floating hole (13), and the guide pin (6) can extend out of the clamping device, the floating hole (13) and be inserted into the guide pin hole II (32) of another device; the mounting panel (11) of the device is provided with an operation hole I (14), the floating housing (2) is provided with an operation hole II (21) aligned with the operation hole I (14), and the operating part (81) of the worm (8) is aligned with the operation hole II (21).

2. A diagonal control telescoping floating alignment device according to claim 1, wherein: The sum of the dimensions of the chamfers of the guide pin (6) and guide pin hole II (32) in the floating direction is greater than or equal to the floating gap.

3. A diagonal control telescoping floating alignment device according to claim 1, wherein: The adapter structure is fixedly mounted on the corresponding clamping device, and the clamping device corresponding to the adapter structure has the same structure as the clamping device corresponding to the floating structure.

4. A diagonal control telescoping floating alignment device according to claim 3, wherein: The clamping device corresponding to the adapter structure is floating.

5. A diagonal control telescoping floating alignment device as defined in claim 1 wherein: The clamping device is provided with a guide pin hole Ⅲ (41) for inserting the guide pin (6). The side of the guide pin (6) is provided with a plane that matches the guide pin hole Ⅲ (41) to prevent rotation. The thread on the guide pin (6) is provided on the arc surface between the planes.

6. A diagonal control telescoping floating alignment device as defined in claim 1, wherein: The clamping device includes a housing (3) and a rear cover. The floating structure is an optical module (9), which is disposed between the housing (3) and the rear cover.

7. A floating alignment device for oblique control of telescopic movement according to claim 6, characterized in that: The casing (3) is provided with a guide pin hole I (31), and the rear cover is provided with a guide pin hole III (41) aligned with the guide pin hole I (31). The guide pin (6) includes a guide part (61) for inserting into the guide pin hole II (32) and an anti-rotation part (62) that cooperates with the anti-rotation of the guide pin hole III (41). When the guide pin (6) retracts, the guide part (61) is located in the guide pin hole I (31). The casing (3) is also provided with a guide pin hole II (32) for interlocking with the guide pin (6) on another device.

8. A floating alignment device for oblique control of telescopic movement according to claim 6, characterized in that: The rear cover includes rear cover I (4) and rear cover II (5). The rear cover I (4) has an installation cavity (43) for installing the worm gear (7) and worm (8). The rear cover II (5) covers and closes the installation cavity (43) and blocks the worm (8). The rear cover I (4) has an operation hole III (44) that penetrates the rear cover I (4) and connects to the installation cavity (43). The operation part (81) of the worm (8) is located in the operation hole III (44).

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