Floating target zero position locking mechanism

Abstract

The invention relates to a floating target zero-position locking mechanism, and belongs to the technical field of repeatable locking and releasing mechanisms of on-orbit service used for locking space loads. The locking frame body is used for supporting a moving part to move; the moving rod group and the locking frame body are installed, and the moving rod group is used for locking and unlocking; and the driving connecting group is mounted on the outer side of the locking frame body and is matched with the moving rod group. The load locking mechanism is a labor-saving mechanism in the load locking process, and the requirement for stress of a driving device can be reduced; loads can be locked in two directions, and the locking requirements of floating loads such as magnetic levitation are met.

Description

Technical Field

[0001] This invention relates to a zero-position locking mechanism for a floating target, belonging to the technical field of repeatable locking and releasing mechanisms for on-orbit services used in locking space loads. Background Technology

[0002] With the introduction of the concept of on-orbit servicing in the 1980s, humans began to carry out on-orbit docking, berthing, maintenance, and repair tasks, and on-orbit locking technology for spacecraft became a key technology.

[0003] For certain spacecraft, such as space telescopes, locking mechanisms require high locking and positioning accuracy, as well as a certain range of preload adjustment to accommodate bidirectional floating of the spacecraft near its ideal positioning. Currently, on-orbit locking mechanisms struggle to achieve these objectives.

[0004] Therefore, there is an urgent need to propose a floating target zero-position locking mechanism to solve the above-mentioned technical problems. Summary of the Invention

[0005] To address the aforementioned problems, a floating target zero-position locking mechanism is provided. A brief overview of the invention is given below to provide a basic understanding of certain aspects of the invention. It should be understood that this overview is not an exhaustive summary of the invention. It is not intended to identify key or essential parts of the invention, nor is it intended to limit the scope of the invention.

[0006] The technical solution of this invention:

[0007] A floating target zero-position locking mechanism, comprising: The locking frame is used to support the movement of moving parts; The moving rod assembly is installed with the locking frame; the moving rod assembly is used for locking and unlocking. The drive connection assembly is installed on the outside of the locking frame, and the drive connection assembly cooperates with the motion rod assembly.

[0008] Preferably, frame pieces three, two, five, four, and one are arranged sequentially from the outside to the inside to form a frame group; The motion linkage assembly includes: one end of the main tie rod passes through the through hole on the linkage frame and connects to the second shaft; the linkage frame is connected to the upper part of the linkage assembly; the second shaft is connected to the lower part of the linkage assembly; and the linkage assembly is connected to the frame assembly.

[0009] Preferably, the linkage group includes: the linkage group includes linkage groups arranged symmetrically in the upper and lower parts; the linkage group includes: a pull rod four is disposed between frame piece three and frame piece two, one end of pull rod four is connected to frame piece three through shaft three, and the other end of pull rod four is connected to long shaft four; a pull rod one is disposed between frame piece two and frame piece five, one end of pull rod one is connected to frame piece two and / or frame piece five through shaft one, and the other end of pull rod one is connected to one end of pull rod two through shaft five; a pull rod five is disposed between frame piece five and frame piece four, one end of pull rod five is connected to slider through shaft four, and the other end of pull rod five is connected to long shaft four; one end of pull rod three is connected to shaft five, and the other end of pull rod three is connected to long shaft four.

[0010] Preferably, the other end of the upper tie rod 2 is connected to the connecting rod frame via shaft 6, and the other end of the lower tie rod 2 is connected to shaft 2.

[0011] Preferably, the frame piece five is provided with a slide rail, and the slider is slidably connected to the slide rail of the frame piece five; Frame piece 2 and frame piece 1 are provided with arc-shaped holes corresponding to the long axis 4, and the long axis 4 passes through the arc-shaped holes and the clearance holes; Frame piece five and frame piece four are provided with clearance holes at the corresponding positions of tie rod two.

[0012] Preferably, there are two sets of connecting rods and two sets of frame groups, which are symmetrically arranged on both sides of the main tie rod.

[0013] Preferably, the motion rod assembly further includes: one side of the two sliders is connected by a slider rod, the slider rod is connected to a pull stud, the rod of the pull head passes through a small disc spring from right to left, the pull stud is connected to one end of the steel rope, and the other end of the pull rod passes through a force-adding plate, a first large disc spring, a positioning cone, a compression spring, a washer, a second large disc spring, a pressure cap and is connected to a hexagonal nut.

[0014] Preferably, the main tie rod is provided with a groove that mates with the connecting rod assembly.

[0015] Preferably, the locking frame further includes: an active end frame bolted to the upper side of the guide cover; a frame plate three between the guide cover and the bottom cover; a frame cover and a frame two between the guide cover and the bottom cover; a pulley bracket and a micro switch on the left side of the frame cover; a spring frame and a micro switch on the right side of the frame two; two micro switches corresponding to the slider rod and the connecting block; the other side of the two sliders connected by the connecting block; the connecting block connected to the spring pull head of the spring frame by a tension spring; the conical surface of the positioning cone pressed against the active end frame; and the upper end of the positioning cone extending from the center hole of the active end frame.

[0016] Preferably, a pulley assembly is provided on the pulley bracket, and two pulley assemblies are provided on the front frame plate three.

[0017] The present invention has the following beneficial effects: 1. The present invention is a force-saving mechanism during the load locking process, which can reduce the force required on the drive device; 2. This invention can lock the load in both directions, meeting the locking requirements of floating loads such as magnetic levitation. Attached Figure Description

[0018] Figure 1 This is a three-dimensional schematic diagram of a floating target zero-position locking mechanism.

[0019] Figure 2 This is the main view of the locking frame of a floating target zero-position locking mechanism.

[0020] Figure 3 This is a left view and a cross-sectional view of the locking frame of a floating target zero-position locking mechanism.

[0021] Figure 4 This is a schematic diagram of the internal structure of a floating target zero-position locking mechanism.

[0022] Figure 5 This is a top view of a floating target zero-position locking mechanism.

[0023] Figure 6 This is a schematic diagram of the drive connection group structure.

[0024] Figure 7 This is a cross-sectional view of a floating target zero-position locking mechanism.

[0025] Figure 8 This is a schematic diagram of the structure of frame piece two.

[0026] Figure 9 This is a structural schematic diagram of frame piece five.

[0027] Figure 10 This is a structural schematic diagram of frame piece four.

[0028] Figure 11 This is a structural schematic diagram of frame piece one.

[0029] Figure 12 This is a structural diagram of the frame group. Detailed Implementation

[0030] To make the objectives, technical solutions, and advantages of this invention clearer, the invention is described below with reference to specific embodiments shown in the accompanying drawings. However, it should be understood that these descriptions are merely exemplary and not intended to limit the scope of the invention. Furthermore, descriptions of well-known structures and technologies are omitted in the following description to avoid unnecessarily obscuring the concept of the invention.

[0031] Specific implementation method one: Combining Figure 1-12This embodiment describes a floating target zero-position locking mechanism, which includes: a locking frame 101, a moving rod assembly 102, and a drive connection assembly 103. The locking frame 101 is used to support the movement of the moving parts; The moving rod assembly 102 is installed with the locking frame 101. The moving rod assembly 102 is used for locking and unlocking. It is a force-saving mechanism during load locking, which can reduce the force required on the drive device. It adopts bidirectional locking load to meet the locking requirements of floating loads such as magnetic levitation. The drive connection group 103 is installed on the outside of the locking frame 101, and its position and quantity are set according to the installation requirements. This invention relates to a repeatable locking and releasing mechanism for on-orbit service used to lock space loads. Specifically, it uses a drive device to drive the slider of the locking mechanism, which in turn drives the entire linkage mechanism, which is divided into upper and lower parts, thereby driving the two locking ends to move towards each other to lock the load. This invention provides a repeatable locking mechanism that allows the space load to have a certain locking margin near the ideal locking position, thus solving the locking problem of floating space loads such as maglev to a certain extent.

[0032] Specific Implementation Method Two: Combining Figure 1-12 This embodiment describes a floating target zero-position locking mechanism. The locking frame 101 includes: frame piece 3 208, frame piece 209, frame piece 5 210, frame piece 4 211, and frame piece 1 212; frame piece 3 208, frame piece 209, frame piece 5 210, frame piece 4 211, and frame piece 1 212 are arranged sequentially from the outside to the inside to form a frame group. The motion rod assembly 102 includes: a main tie rod 301, a connecting rod frame 310, a shaft 316, and a connecting rod group. One end of the main tie rod 301 passes through a through hole on the connecting rod frame 310 and connects to the middle of the shaft 316. The connecting rod frame 310 is connected to the upper part of the connecting rod group, the shaft 316 is connected to the lower part of the connecting rod group, and the connecting rod group is connected to the frame group.

[0033] Specific implementation method three: Combining Figure 1-12This embodiment describes a floating target zero-position locking mechanism. The linkage group includes: a linkage group comprising vertically symmetrically arranged linkage segments; the locking frame pieces (frame pieces) in the locking frame are vertically symmetrically arranged corresponding to the linkage segments; the linkage segments include: slider 313, shaft four 314, pull rod five 315, pull rod two 317, shaft five 318, pull rod one 319, shaft one 320, shaft three 321, pull rod four 322, long shaft four 323, and pull rod three 325; pull rod four 322 is disposed between frame piece three 208 and frame piece two 209, one end of pull rod four 322 is connected to frame piece three 208 via shaft three 321, and the other end of pull rod four 322 is connected to long shaft four 323; pull rod one 319 is disposed between frame piece three 208 and frame piece two 209. Between frame piece 209 and frame piece 5 210, one end of pull rod 319 is connected to frame piece 209 and / or frame piece 5 210 via shaft 320, and the other end of pull rod 319 is connected to one end of pull rod 2 317 via shaft 5 318. Pull rod 5 315 is located between frame piece 5 210 and frame piece 4 211. One end of pull rod 5 315 is connected to slider 313 via shaft 4 314, and the other end of pull rod 5 315 is connected to long shaft 4 323. One end of pull rod 3 325 is connected to shaft 5 318, and the other end of pull rod 3 325 is connected to long shaft 4 323. A group of connecting rods includes two pull rods 5 315, which are located on both sides of slider 313 and pull rod 3 325 to ensure uniform force distribution and reliable movement.

[0034] Specific implementation method four: Combination Figure 1-12 This embodiment describes a floating target zero-position locking mechanism. The other end of the upper pull rod 317 is connected to the connecting rod frame 310 via the shaft 324, and the other end of the lower pull rod 317 is connected to the shaft 316.

[0035] Specific Implementation Method Five: Combining Figure 1-12 This embodiment describes a floating target zero-position locking mechanism, wherein a slide rail is provided on the frame piece 210, and the slider 313 is slidably connected to the slide rail of the frame piece 210; Frame piece 209 and frame piece 1 212 are provided with arc-shaped holes corresponding to the long axis 323, and the long axis 323 passes through the arc-shaped holes and the clearance holes; Frame piece 5 210, frame piece 4 211 and tie rod 2 317 are provided with clearance holes at corresponding positions, so that tie rod 2 317 can pass through the clearance holes and connect to the connecting rod frame 310.

[0036] Specific Implementation Method Six: Combination Figure 1-12This embodiment describes a floating target zero-position locking mechanism. It comprises two sets of connecting rods and two sets of frame groups, mirror-symmetrically arranged on both sides of the main pull rod 301. The long shafts 323 in both sets of connecting rods can share a single shaft. Frames 213, bolted to the locking frame 101, are respectively provided on the left and right sides of the two frame groups. The other sides of the two sliders 313 are connected by a connecting block to form an integral slider. The connecting block is connected to the locking frame 101 via a tension spring 404.

[0037] Specific implementation method seven: Combining Figure 1-12 This embodiment describes a floating target zero-position locking mechanism. The moving rod assembly 102 further includes: a hexagonal nut 302, a pressure cap 303, a second large disc spring 304, a washer 305, a compression spring 306, a positioning cone 307, a first large disc spring 308, a force-adding plate 309, a connecting rod frame 310, a pull head 311, a pull stud 312, a slider rod 326, and a small disc spring 327. Two sliders 313 are fixedly connected to one side (left) of a slider rod 326. The internal thread of the central through hole of the slider rod 326 engages with the external thread of the pull stud 312 to achieve a detachable connection. The rod of the pull head 311 passes through the small disc spring 327 and the central hole of the pull stud 312 from right to left, and connects to one end of the steel rope 403. The pull head 311 and the pull stud 312 are slidably connected. Under the action of the steel rope, the rod head of the pull head 311 presses the small disc spring between the right end of the pull stud 312 and the rod head. The other end of the pull rod 301 passes through the force plate 309 and the first large... Disc spring 308, positioning cone 307, compression spring 306, washer 305, second large disc spring 304, pressure cap 303 and hexagonal nut 302 are threaded together. The lower end of force plate 309 is threaded together with the through hole on the connecting rod frame 310. Force plate 309 is slidably connected to main tie rod 301. Main tie rod 301 is slidably connected to positioning cone 307, pressure cap 303, second large disc spring 304. The relative position is fixed in a certain state by using elastic force. The spring and disc spring are in a compressed state. The elastic force setting in the initial state can be adjusted by hexagonal nut 302.

[0038] Specific implementation method eight: Combination Figure 7 This embodiment describes a floating target zero-position locking mechanism. In the locked state, the main pull rod 301 is provided with a groove that mates with the long shaft 323 of the connecting rod assembly.

[0039] Specific Implementation Method Nine: Combining Figure 1-12 This embodiment describes a floating target zero-position locking mechanism. The locking frame 101 further includes: an active end frame 201, a guide cover 202, a pulley bracket 203, a bottom cover 205, a spring pull head 206, a micro switch 207, a spring frame 218, and a frame cover 219. An active end frame 201 is screwed onto the upper side of the guide cover 202. A frame plate 208 is bolted between the guide cover 202 and the bottom cover 205. A frame cover 219 and a frame 213 are bolted between the guide cover 202 and the bottom cover 205. The frame cover 219 has a pulley bracket 203 and a micro switch 207 on the left. The frame 213 has a spring frame 218 and a micro switch 207 on the right. The two micro switches 207 are correspondingly set with the slider rod 326 and the connecting block. The other side of the two sliders 313 is connected by the connecting block. The connecting block is connected to the spring pull head 206 of the spring frame 218 through the tension spring 404. The tension spring plays the role of unlocking and resetting. The conical surface of the positioning cone 307 is pressed against the active end frame 201. The upper end of the positioning cone 307 extends out from the center hole of the active end frame 201.

[0040] Specific Implementation Method Ten: Combining Figure 1-12 This embodiment describes a floating target zero-position locking mechanism. The drive connection group 103 includes a long pin 401 and a pulley group 402. A pulley group 402 is provided on the pulley bracket 203 at a position corresponding to the wire rope 403 via the long pin 401. Two pulley groups 402 are provided on the front frame plate 3 208. The pulleys are placed in the pulley grooves of the pulley bracket and the frame plate 3. The pulley end face of the pulley bracket contacts the gasket. The short pin passes through the through hole of the pulley and the pulley bracket and is fixed by a cotter pin. One end face of the pulley of the frame plate 3 contacts the gasket, and the other end face contacts the wheel sleeve. The long pin passes through the through hole of the pulley and the pulley groove of the frame plate 3 and is fixed by a cotter pin.

[0041] Example 1: Combination Figure 1-12 The aforementioned floating target zero-position locking mechanism is mainly used to lock loads with floating requirements so that the load can perform subsequent tasks. It includes three parts: a locking frame, a moving rod assembly, and a drive connection assembly.

[0042] The locking frame mainly includes locking frame plate one, locking frame plate two, locking frame plate three, locking frame plate four, locking frame plate five, guide cover, active end frame, spring pull head, bottom cover, frame, frame cover, spring frame, micro switch, and pulley bracket; the moving rod assembly mainly includes main pull rod, washer, large disc spring, pressure cover, hexagonal nut, compression spring, connecting rod frame, positioning cone, force plate, pull rod one, pull rod two, pull rod three, pull rod four, pull rod five, shaft one, shaft two, shaft three, shaft four, long shaft four, shaft five, slider, slider pull rod, pull head, pull pin, and small disc spring; the drive connection assembly mainly includes pulley assembly, long pin, steel wire rope, and tension spring.

[0043] The locking frame structure features are as follows: the locking frame is a structural component used to support the movement of moving parts and to bear force and limit movement. Each component in the locking frame is limited by screws or structural connections. The active end frame is used to limit the final locking position of the positioning cone. The guide cover is used to guide the positioning cone. The locking frame plate is used to support and limit the connecting rods and shafts in the moving rod assembly, ensuring that the rod assembly can move normally according to the designed movement path. The frame, frame cover, and bottom cover serve as supports for the locking frame. The spring frame is used to install the spring pull head, spring, and unlocking micro switch. The pulley bracket is used to install the pulley and locking micro switch. The structure of the motion linkage assembly is as follows: the main tie rod assembly consists of a main tie rod, a washer, four large disc springs, a pressure cap, a compression spring, and a hexagonal nut; the connecting rod assembly consists of a connecting rod frame, a positioning cone, six large disc springs, and a force-applying plate; the connecting rod ring assembly consists of a slider, a slider tie rod, a pull head, a pull pin, and four small disc springs; the rods and shafts are interconnected to form a linkage assembly. The linkage assemblies that pull the main tie rod assembly and the connecting rod frame assembly are symmetrical about the center plane of the slider's movement, except for a few parts. The linkage assembly is also symmetrical about the plane containing the positioning cone's axis. Therefore, the linkage assembly can be divided into four parts, each of which is also symmetrical to some extent. The connecting rod frame and tie rod two are connected via shaft five; tie rod one and tie rod two are connected via shaft five; tie rod one and the locking frame are connected via shaft one; tie rod four and the locking frame are connected via shaft three; tie rod two and tie rod three are connected via shaft five; and tie rod three... Pull rods four and five are connected by a long shaft four. Pull rod five and the slider are connected by shaft four, and pull rod two and the main pull rod are connected by shaft two. When the drive connection group pulls the slider in the locking direction, the pull ring assembly drives the rod assembly to move the main pull rod assembly and the connecting rod frame assembly. The main pull rod assembly and the connecting rod frame assembly move towards each other. The compression spring is compressed between the shim and the positioning cone to prevent the shim from floating. When the slider pull rod touches the locking micro switch, the locking is completed. At this time, the positioning cone compresses the disc spring under the action of the active end frame to form a preload in one direction. The shim contacts the load and compresses the disc spring to form a preload in another direction. The locking mechanism locks the load from two directions, locking the load in the ideal locking position (zero position) with a certain locking margin. That is, the actual locking position can be above or below the zero position. When unlocking is required, the slider moves in the opposite direction under the action of the pull spring to unlock. The drive connection assembly has the following structural features: the pulley assembly includes pulleys, washers, and wheel sleeves. The pulley assembly is mounted on the locking frame and pulley bracket via short pins and wheel sleeves. A steel wire rope passes around the pulley assembly and connects to the pull head. The drive mechanism pulls the pull head by pulling the steel wire rope, which in turn moves the lever mechanism to lock the load. The corresponding drive mechanism should have a self-locking function. When separation is required, the drive mechanism should engage the self-locking mechanism, and the lever mechanism should move in the opposite direction to reset under the action of the tension spring, thus unlocking the load. The connection method of the locking mechanism and the drive is only based on the wire rope drive as an example, and includes but is not limited to other drive methods such as rod groups, worm gears, and lead screws.

[0044] A method for operating a spatially repeatable floating target zero-position locking mechanism includes the following steps: 1. Locking process In the initial state, the slider is on the far right of the mechanism, i.e., against the unlocking microswitch of the spring frame. When a locking command is received, the drive mechanism drives the wire rope to pull the pull head, which in turn moves the slider. The slider moves the rod assembly, which in turn moves the main tie rod assembly and the connecting rod frame assembly towards each other under the action of the locking frame. When the positioning cone touches the active end frame of the locking frame, the mechanism compresses the disc spring in the connecting rod frame assembly to load the locking preload. The main tie rod assembly touches the load shortly afterward, and the disc spring in the main tie rod assembly begins to compress, loading the locking preload. When the slider rod touches the locking microswitch, the locking is complete, the drive mechanism stops moving and self-locks, and the mechanism completes the locking. At this time, the tension spring is stretched to its maximum position, and the energy storage is complete.

[0045] 2. Separation and Reset Process Upon receiving the separation command, the drive mechanism unlocks, the wire rope slackens, the tension spring pulls the slider in the opposite direction, the slider drives the rod assembly to move in the opposite direction, the main tie rod assembly and the connecting rod frame assembly move in opposite directions, the disc spring resets, the preload is released, and the mechanism unlocks. When the slider touches the unlock micro switch, it proves that the unlocking is in place.

[0046] It should be noted that in the above embodiments, as long as the technical solutions are not contradictory, they can be permuted and combined. Those skilled in the art can exhaust all possibilities based on the mathematical knowledge of permutation and combination. Therefore, the present invention will not describe the technical solutions after permutation and combination one by one, but it should be understood that the technical solutions after permutation and combination have been disclosed by the present invention.

[0047] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A floating target zero-position locking mechanism, characterized in that: include: The locking frame (101) is used to support the movement of the moving parts; The moving rod assembly (102) is installed with the locking frame (101), and the moving rod assembly (102) is used for locking and unlocking; The drive connection assembly (103) is installed on the outside of the locking frame (101).

2. The floating target zero-position locking mechanism according to claim 1, characterized in that: The locking frame (101) includes: frame piece three (208), frame piece two (209), frame piece five (210), frame piece four (211), and frame piece one (212) arranged sequentially from the outside to the inside to form a frame group; The motion rod assembly (102) includes: one end of the main tie rod (301) passes through the through hole on the connecting rod frame (310) and is connected to the shaft two (316); the connecting rod frame (310) is connected to the upper part of the connecting rod assembly; the shaft two (316) is connected to the lower part of the connecting rod assembly; and the connecting rod assembly is connected to the frame assembly.

3. The floating target zero-position locking mechanism according to claim 2, characterized in that: The linkage assembly includes: The linkage assembly includes symmetrically arranged linkage groups; the linkage groups include: a fourth tie rod (322) disposed between a third frame piece (208) and a second frame piece (209), one end of the fourth tie rod (322) being connected to the third frame piece (208) via a third shaft (321), and the other end of the fourth tie rod (322) being connected to a fourth long shaft (323); a first tie rod (319) disposed between a second frame piece (209) and a fifth frame piece (210), one end of the first tie rod (319) being connected to the second frame piece (209) and / or the frame via a third shaft (320). The fifth piece (210) is connected, and the other end of the first pull rod (319) is connected to one end of the second pull rod (317) through the fifth shaft (318). The fifth pull rod (315) is set between the fifth frame piece (210) and the fourth frame piece (211). One end of the fifth pull rod (315) is connected to the slider (313) through the fourth shaft (314). The other end of the fifth pull rod (315) is connected to the fourth long shaft (323). One end of the third pull rod (325) is connected to the fifth shaft (318), and the other end of the third pull rod (325) is connected to the fourth long shaft (323).

4. The floating target zero-position locking mechanism according to claim 3, characterized in that: The other end of the upper tie rod 2 (317) is connected to the connecting rod frame (310) via shaft 6 (324), and the other end of the lower tie rod 2 (317) is connected to shaft 2 (316).

5. A floating target zero-position locking mechanism according to claim 4, characterized in that: A slide rail is provided on the frame piece five (210), and the slider (313) is slidably connected to the slide rail of the frame piece five (210); The second frame piece (209) and the first frame piece (212) are provided with arc-shaped holes corresponding to the fourth long axis (323), and the fourth long axis (323) passes through the arc-shaped holes and the clearance holes; The five frames (210), four frames (211), and two tie rods (317) are provided with clearance holes at corresponding positions.

6. A floating target zero-position locking mechanism according to claim 3 or 5, characterized in that: There are two sets of linkage groups and two sets of frame groups, which are symmetrically arranged on both sides of the main tie rod (301).

7. A floating target zero-position locking mechanism according to claim 6, characterized in that: The motion rod assembly (102) also includes: one side of the two sliders (313) is connected by a slider rod (326), the slider rod (326) is connected to a pull stud (312), the pull head (311) passes through the small disc spring (327) and the pull stud (312) and is connected to one end of the steel rope (403) in sequence, and the other end of the rod (301) passes through the force plate (309), the first large disc spring (308), the positioning cone (307), the compression spring (306), the washer (305), the second large disc spring (304), the pressure cap (303) and is connected to the hexagonal nut (302) in sequence.

8. A floating target zero-position locking mechanism according to claim 7, characterized in that: The main tie rod (301) is provided with a groove that mates with the connecting rod assembly.

9. A floating target zero-position locking mechanism according to claim 7, characterized in that: The locking frame (101) also includes: an active end bracket (201) bolted to the upper side of the guide cover (202); a frame plate three (208) between the guide cover (202) and the bottom cover (205); a frame cover (219) and a frame two (213) between the guide cover (202) and the bottom cover (205); a pulley bracket (203) and a micro switch (207) on the left side of the frame cover (219); and a spring bracket of the frame two (213). (218) and the micro switch (207) on the right side. The two micro switches (207) are set in correspondence with the slider rod (326) and the connecting block. The other side of the two sliders (313) is connected by the connecting block. The connecting block is connected to the spring pull head (206) of the spring frame (218) through the tension spring (404). The cone surface of the positioning cone (307) is pressed against the active end frame (201). The upper end of the positioning cone (307) extends out from the center hole of the active end frame (201).

10. A floating target zero-position locking mechanism according to claim 9, characterized in that: A pulley assembly (402) is provided on the pulley bracket (203), and two pulley assemblies (402) are provided on the front frame plate three (208).

Images