Optical mark clamping device

Abstract

The invention provides an optical mark clamping device which comprises a base structure, a locking assembly and a rotating assembly, the locking assembly is used for clamping a target piece, and the rotating assembly comprises a rotating disc rotationally connected to the base structure, a driving piece used for driving the locking assembly to clamp or loosen the target piece and an optical positioning frame connected to the rotating disc. The driving part is movably connected to the optical positioning frame, so that the driving part at least has a first position and a second position, the driving part is connected with the locking assembly to drive the locking assembly when the driving part is at the first position, and the driving part is disconnected with the locking assembly when the driving part is at the second position. According to the optical mark clamping device, the rotating disc can drive the driving piece and the optical positioning frame to rotate relative to the base structure, then the circumferential position of the optical positioning frame can be changed, the optical positioning frame does not need to rotate along with rotation of the target piece, and therefore the position of the optical positioning frame can be adjusted; and the robot can track the optical marks on the optical positioning frame more easily.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of medical devices, and more particularly to an optical marker clamping device. BACKGROUND

[0002] In the process of pedicle screw implantation, an implant tool is used to connect with a pedicle screw, and the screw is slowly screwed in. An optical positioning device is installed on the implant tool, and a robot can obtain the screwing depth of the screw through the optical positioning device. The optical positioning device needs to keep a relative position unchanged with the screw in the axial direction (screwing direction), that is, the optical positioning device moves synchronously with the screw during screwing. During the rotation of the screw, the optical positioning device is rotated to the side away from the robot. At this time, the robot may not be able to track the optical marker, affecting the positioning accuracy, or the optical positioning device is blocked by other objects during rotation and cannot rotate normally. SUMMARY

[0003] The purpose of the embodiment of the present application is to provide an optical marker clamping device to solve the technical problems in the prior art that the optical positioning device rotates with the screw, causing the robot to be unable to track the optical marker, and being easily blocked by objects during rotation.

[0004] To achieve the above purpose, the technical scheme adopted by the present application is to provide an optical marker clamping device, comprising:

[0005] a base structure;

[0006] a locking assembly installed on the base structure and used for clamping a target piece;

[0007] a rotating assembly comprising a rotating disc rotatably connected to the base structure, a driving piece used for driving the locking assembly to clamp or release the target piece, and an optical positioning frame connected to the rotating disc, the driving piece being movably connected to the optical positioning frame, so that the driving piece has at least a first position and a second position, the driving piece being connected to the locking assembly at the first position to drive the locking assembly, and the driving piece being disconnected from the locking assembly at the second position.

[0008] Optionally, one end of the driving piece has a transmission part, the locking assembly has a transmission hole for the transmission part to extend into, the driving piece is connected to the locking assembly when the transmission part is inserted into the transmission hole, and the rotation of the driving piece drives the locking assembly to clamp or release the target piece; when the transmission part exits the transmission hole, the driving piece is disconnected from the locking assembly.

[0009] Optionally, the driving member is relatively static with the optical positioning frame in the rotation direction of the driving member, and the optical positioning frame drives the driving member to rotate synchronously when the optical positioning frame rotates.

[0010] Optionally, the rotating assembly further comprises a locking member, the rotating disc and the optical positioning frame are fixed to each other when the locking member is in a locking state, and the optical positioning frame can rotate relative to the rotating disc at least in the rotation direction of the driving member when the locking member is in an unlocking state.

[0011] Optionally, the optical positioning frame comprises an optical positioning body and a first connecting portion fixedly connected, an end of the first connecting portion away from the optical positioning body extends radially outward to form a skirt structure, the rotating disc has a second connecting portion, an outer periphery of the second connecting portion has external threads, and the locking member is a locking nut which is threadedly connected with the second connecting portion and presses the skirt structure against the second connecting portion.

[0012] Optionally, the driving member comprises a driving rod and a push-pull portion fixed to one end of the driving rod, one end of the driving rod away from the push-pull portion has the transmission portion, the optical positioning frame has a sliding hole for the driving rod to slide, and the optical positioning frame is further provided with a limiting hole for the push-pull portion to slide, and the push-pull portion at least partially passes through the limiting hole to the outside of the optical positioning frame, the limiting hole and the sliding hole are in communication with each other.

[0013] Optionally, the locking assembly comprises a toothed disc, a gear meshing with the toothed disc, and a plurality of clamping structures for clamping the target member, the driving member is selectively connected with the gear, the driving member drives the gear to rotate when the driving member is connected with the gear, the gear drives the toothed disc to rotate relative to the base structure, the toothed disc has a spiral groove, the clamping structure is slidingly arranged in the spiral groove, the base structure is provided with a radial groove extending along the radial direction of the toothed disc, and the clamping structure is slidingly arranged in the radial groove, and the rotation of the toothed disc drives the clamping structure to slide along the radial groove to clamp or release the target member.

[0014] Optionally, the clamping structure comprises a clamping portion and a guide portion connected with each other, one side of the guide portion is embedded into the radial groove, and the other side of the guide portion is provided with a protruding portion protruding, and the protruding portion is embedded into the spiral groove.

[0015] Optionally, the base structure is provided with a hollow protruding structure, at least part of the gear extends into the protruding structure, and the protruding structure is provided with a relief hole for the driving member to extend into.

[0016] Optionally, the base structure comprises a base and an end cover fixed to the base, the locking assembly is arranged in a space formed by the base and the end cover, the base has a circumferential outer wall, and the rotating disc has a circumferential inner wall, so that the rotating disc is rotatably sleeved on the outer periphery of the base.

[0017] The optical mark clamping device provided by the present application has the advantages that: compared with the prior art, the optical mark clamping device comprises a base structure, a locking assembly and a rotating assembly, the rotating assembly comprises a rotating disc, a driving member and an optical positioning frame, when it is required to lock the optical mark clamping device to a target object, the driving member moves relative to the optical positioning frame, so that the locking assembly clamps the target object, after clamping the target object, the driving member is disconnected from the locking assembly, the rotating disc can drive the driving member and the optical positioning frame to rotate relative to the base structure, and thus the circumferential position of the optical positioning frame can be changed, the optical positioning frame does not need to rotate following the rotation of the target object, so that the position of the optical positioning frame can be adjusted, the robot can more easily track the optical mark on the optical positioning frame, and the optical positioning frame can also avoid obstacles around by rotating. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the embodiments or prior art description will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative effort.

[0019] Figure 1 A perspective view of the optical mark clamping device provided by the embodiment of the present application is provided.

[0020] Figure 2 An exploded view of the optical mark clamping device provided by the embodiment of the present application is provided.

[0021] Figure 3 A sectional view of the optical mark clamping device provided by the embodiment of the present application is provided.

[0022] Figure 4 A perspective view of the base assembly provided by the embodiment of the present application is provided.

[0023] Figure 5 An exploded view of the base assembly and the locking assembly provided by the embodiment of the present application is provided.

[0024] Figure 6 A perspective view of the tooth disc provided by the embodiment of the present application is provided.

[0025] Figure 7 A perspective view of the clamping structure provided by the embodiment of the present application is provided.

[0026] Figure 8 An assembly view of the toothed disc and the clamping structure provided by the embodiment of the present application is shown in the figure;

[0027] Figure 9 A perspective view of the base provided by the embodiment of the present application is shown in the figure;

[0028] Figure 10 An assembly view of the base and the clamping structure provided by the embodiment of the present application is shown in the figure.

[0029] In the figure, various reference signs are as follows:

[0030] 10 - base structure; 11 - base; 111 - radial groove; 112 - protruding structure; 1121 - avoiding hole; 113 - annular part; 114 - first center hole; 12 - end cover; 121 - third center hole; 20 - rotating assembly; 21 - rotating disc; 211 - rotating main body; 212 - second connecting part; 22 - driving member; 221 - driving rod; 222 - push-pull part; 223 - transmission part; 23 - optical positioning frame; 231 - optical positioning main body; 232 - first connecting part; 233 - sliding hole; 234 - limiting hole; 235 - skirt structure; 24 - locking member; 241 - annular pressing edge; 30 - locking assembly; 31 - gear; 311 - transmission hole; 32 - toothed disc; 321 - spiral groove; 322 - second center hole; 33 - clamping structure; 331 - clamping part; 332 - guiding part; 333 - protruding part. DETAILED DESCRIPTION

[0031] In order to make the technical problems, technical solutions and beneficial effects of the present application clearer, the present application will be further described in detail below in combination with the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and not to limit the present application.

[0032] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0033] It should be understood that the terms "length", "width", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only used to facilitate the description of the present application and simplify the description, and therefore cannot be understood as indicating or implying that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0034] In addition, the terms "first", "second", etc. are used only for descriptive purposes and are not to be construed as indicating or implying relative importance or an indicated number of technical features. Thus, features defined with "first", "second" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "a plurality of" is two or more, unless otherwise explicitly and specifically limited.

[0035] In the process of pedicle screw implantation, it is necessary to connect the implantation tool and the pedicle screw, slowly screw the screw into the implantation tool, install the optical positioning device on the implantation tool, and the robot can obtain the screwing depth through the optical positioning device. In the related art, the optical positioning device is directly fixed by a clamping device and a screwing tool, although it can move together with the screwing tool to ensure that the relative position does not change, but the screwing tool needs to be rotated, and in the rotating process, the optical positioning device will be rotated to the back, at this time the robot cannot track the optical mark, which affects the positioning accuracy, and sometimes there are obstacles in the back, which cannot be rotated normally.

[0036] In order to solve the above technical problems, the embodiment of the present application provides an optical mark clamping device, which comprises a base structure 10, a locking assembly 30 mounted on the base structure 10, and a rotating assembly 20 capable of rotating relative to the base structure 10, the driving part 22 of the rotating assembly 20 can extend into the locking assembly 30 to drive the locking assembly 30 to clamp or release the target part, and the rotating assembly 20 further comprises an optical positioning frame 23, when the locking assembly 30 clamps the target part, the rotating assembly 20 can rotate relative to the base structure 10, so that the optical positioning frame 23 can rotate and adjust its position relative to the target part during the rotation of the target part, so that the robot can more easily track the optical mark on the optical positioning frame 23 and more easily avoid obstacles around.

[0037] The optical mark clamping device provided by the embodiment of the present application will be described.

[0038] Please refer to Figure 1 and Figure 2 , the optical mark clamping device comprises:

[0039] a base structure 10;

[0040] a locking assembly 30 mounted on the base structure 10 and used for clamping the target part;

[0041] The rotating assembly 20 comprises a rotating disc 21 rotatably connected to the base structure 10, a driving member 22 for driving the locking assembly 30 to clamp or release the target member, and an optical positioning frame 23 connected to the rotating disc 21, the driving member 22 being movably connected to the optical positioning frame 23, so that the driving member 22 has at least a first position and a second position, the driving member 22 being connected to the locking assembly 30 in the first position to drive the locking assembly 30, and the driving member 22 being disconnected from the locking assembly 30 in the second position.

[0042] The base structure 10 can be understood as a housing structure for mounting other components, and the base structure 10 can be a one-piece structure or mounted by multiple structures. The base structure 10 can be provided with a containing space or not.

[0043] The locking assembly 30 is mounted on the base structure 10, and the locking assembly 30 has a locked state and an unlocked state. In the locked state, the locking assembly 30 clamps the target member, and the rotation of the target member drives the locking assembly 30 and the base structure 10 to rotate. In the unlocked state, the locking assembly 30 and the target member are separated from each other, and the optical marker clamping device can be taken off the target member as a whole. The target member can be a screw used in screw implantation surgery.

[0044] The rotating assembly 20 comprises a rotating disc 21, a driving member 22 and an optical positioning frame 23. The rotating disc 21 is capable of rotating relative to the base structure 10, and the driving member 22 is movably connected to the optical positioning frame 23, and the optical positioning frame 23 is connected to the rotating disc 21. Therefore, the rotating assembly 20 as a whole is capable of rotating relative to the base structure 10, and the optical positioning frame 23 is capable of rotating relative to the base structure 10. When the locking assembly 30 clamps the target object, the optical positioning frame 23 is capable of rotating relative to the target object. The driving member 22 is movably connected to the optical positioning frame 23, and the driving member 22 is capable of switching between at least a first position and a second position. The driving member 22 is a structure for driving the locking assembly 30 to move. When the driving member 22 is in the first position, the driving member 22 is connected to the locking assembly 30 and can drive the locking assembly 30, so that the locking assembly 30 clamps or releases the target object. Therefore, the driving member 22 is capable of contacting the locking assembly 30 at least when the driving member 22 is in the first position, so as to drive the locking assembly 30 to move. When the driving member 22 is in the second position, the driving member 22 is disconnected from the locking assembly 30. It can be understood that when the target object needs to be locked or unlocked, the driving member 22 cooperates with the locking assembly 30 when the driving member 22 is in the first position, and at this time, the rotating assembly 20 cannot rotate relative to the base structure 10. When the driving member 22 is in the second position, the driving member 22 is disconnected from the locking assembly 30, and at this time, the rotating assembly 20 can rotate relative to the base structure 10, so as to adjust the circumferential position of the optical positioning frame 23 without changing the locking state of the locking assembly 30. The optical positioning frame 23 is provided with optical positioning marks for being tracked by a robot or the like. After the position of the optical positioning frame 23 is obtained, the corresponding position of the target object can be calculated. The optical positioning marks can be passive reflective balls or active infrared LEDs.

[0045] The optical mark clamping device in the above embodiment comprises the base structure 10, the locking assembly 30 and the rotating assembly 20. The rotating assembly 20 comprises the rotating disc 21, the driving member 22 and the optical positioning frame 23. When the optical mark clamping device needs to be locked to the target object, the driving member 22 moves relative to the optical positioning frame 23, so that the locking assembly 30 clamps the target object. After clamping the target object, the driving member 22 is disconnected from the locking assembly 30, so that the rotating disc 21 can drive the driving member 22 and the optical positioning frame 23 to rotate relative to the base structure 10, and the circumferential position of the optical positioning frame 23 can be changed. The optical positioning frame 23 does not need to rotate following the rotation of the target object, and therefore the position of the optical positioning frame 23 can be adjusted, so that the robot can more easily track the optical marks on the optical positioning frame 23, and the optical positioning frame 23 can also avoid obstacles around by rotating.

[0046] In some embodiments of the present application, please refer to Figure 2 and Figure 3One end of the driving member 22 has a transmission part 223, and the locking assembly 30 has a transmission hole 311 for the transmission part 223 to extend into. When the transmission part 223 is inserted into the transmission hole 311, the driving member 22 is connected with the locking assembly 30, and the rotation of the driving member 22 drives the locking assembly 30 to clamp or release the target member. When the transmission part 223 exits the transmission hole 311, the driving member 22 is disconnected with the locking assembly 30. The transmission part 223 is an end structure of the driving member 22, and the transmission hole 311 is a hole structure of the locking member 24. When the driving member 22 is connected with the locking assembly 30, the transmission part 223 and the transmission hole 311 are inserted and matched with each other. When it is needed to drive the locking assembly 30 to clamp or release the target member, the transmission part 223 of the driving member 22 extends into the transmission hole 311 of the locking assembly 30, the driving member 22 is connected with the locking assembly 30, the driving member 22 rotates, and the rotation is transmitted to the locking assembly 30 through the matching of the transmission part 223 and the transmission hole 311, so that the locking assembly 30 can be switched between the clamping state and the releasing state. The cross-sectional shape of the transmission part 223 is the same as that of the transmission hole 311 and they are matched with each other.

[0047] By arranging the transmission part 223 at one end of the driving member 22 and arranging the transmission hole 311 on the locking assembly 30, the rotation of the driving member 22 can be transmitted to the locking assembly 30, and the locking assembly 30 is driven to move.

[0048] In some embodiments, the cross section of the transmission part 223 is polygonal, and the cross section of the transmission hole 311 is also polygonal. For example, the cross sections of the transmission part 223 and the transmission hole 311 are all triangular, quadrangular, hexagonal, etc.

[0049] In some embodiments, the cross sections of the transmission part 223 and the transmission hole 311 are both D-shaped.

[0050] In some embodiments of the present application, please refer to Figures 1 to 3 The driving member 22 and the optical positioning frame 23 are relatively stationary in the rotation direction of the driving member 22. When the optical positioning frame 23 rotates, the driving member 22 is driven to rotate synchronously. The rotation direction of the driving member 22 is the direction in which the driving member 22 drives the locking assembly 30 to move. Since the driving member 22 and the optical positioning frame 23 are relatively stationary in the rotation direction of the driving member 22, when the driving member 22 rotates, the optical positioning frame 23 also rotates together with the driving member 22. In actual operation, the rotation force can be applied to the driving member 22 or the optical positioning frame 23 to drive the locking assembly 30 to work.

[0051] The driving member 22 and the optical positioning frame 23 are fixed to each other in the rotation direction of the driving member 22. The driving member 22 or the optical positioning frame 23 can be rotated to drive the locking assembly 30 to work.

[0052] In other embodiments, the driving member 22 and the optical positioning frame 23 can or can not be fixed to each other in the rotation direction of the driving member 22.

[0053] In order to distinguish the rotation of the driving member 22 and the rotation of the rotating assembly 20, the rotation axis of the rotating assembly 20 is referred to as a first rotation axis, and the rotation axis of the driving member 22 is referred to as a second rotation axis.

[0054] In some embodiments of the present application, referring to Figures 1 to 3 The rotating assembly 20 further comprises a locking member 24. When the locking member 24 is in a locked state, the optical positioning frame 23 and the rotating disc 21 are fixed to each other. When the locking member 24 is in an unlocked state, the optical positioning frame 23 can rotate relative to the rotating disc 21 at least in the rotation direction of the driving member 22. The locking member 24 is used to lock the optical positioning frame 23 and the rotating disc 21. When it is required to clamp the optical mark clamping device to the target member, the locking member 24 is adjusted to the unlocked state, the rotating assembly 20 is rotated about the first rotation axis to make the driving member 22 opposite to the transmission hole 311 of the locking assembly 30, the driving member 22 is adjusted to the first position, the driving member 22 is rotated to make the locking assembly 30 lock the target member, then the driving member 22 is adjusted to the second position, and finally the locking member 24 is adjusted to the locked state. Subsequently, during the rotation of the target member, the rotating assembly 20 can be rotated about the first rotation axis to adjust its position according to requirements. When it is required to remove the optical mark clamping device from the target member, the process is similar to the locking process, which will not be described herein again.

[0055] Since the driving member 22 and the optical positioning frame 23 are fixed to each other in the rotation direction of the driving member 22, the optical positioning frame 23 rotates together with the driving member 22 when the driving member 22 rotates. However, when the robot tracks the optical mark of the optical positioning frame 23, the optical positioning frame 23 needs to be kept in a stable state. The locking member 24 is arranged to lock the optical positioning frame 23 and the rotating disc 21, so as to prevent the optical positioning frame 23 from shaking about the second rotation axis and affecting the positioning accuracy.

[0056] In other embodiments, a buckle structure can be arranged between the rotating disc 21 and the optical positioning frame 23, so that the rotating disc 21 and the optical positioning frame 23 can be fixed by buckling or can be detached from each other.

[0057] In some embodiments of the present application, referring to Figures 1 to 3The optical positioning frame 23 comprises a fixedly connected optical positioning body 231 and a first connecting portion 232, and the first connecting portion 232 extends radially outward from one end of the optical positioning body 231 to form a skirt structure 235; the rotating disc 21 has a second connecting portion 212, and the outer periphery of the second connecting portion 212 has external threads; and the locking member 24 is a locking nut, which is threadedly connected with the second connecting portion 212 and presses the skirt structure 235 against the second connecting portion 212. The optical positioning body 231 is the main structure of the optical positioning frame 23, and the optical mark is arranged on the optical positioning body 231. The first connecting portion 232 is an additional structure of the optical positioning frame 23, and the main function of the first connecting portion 232 is to assist in connecting the optical positioning frame 23 and the rotating disc 21. One end of the first connecting portion 232 is connected to the optical positioning body 231, and the other end of the first connecting portion 232 extends radially outward to form the skirt structure 235. One end of the locking nut has an annular pressing edge 241, and when the locking nut is connected with the second connecting portion 212 and the first connecting portion 232, the annular pressing edge 241 of the locking nut, the skirt structure of the optical positioning frame 23 and one end of the second connecting portion 212 are pressed against each other, so that the first connecting portion 232 and the second connecting portion 212 can be connected and fixed, that is, the rotating disc 21 and the optical positioning frame 23 can be connected and fixed. Specifically, rotating and tightening the locking nut can fix the rotating disc 21 and the optical positioning frame 23, and rotating and loosening the locking nut in the opposite direction can loosen the rotating disc 21 and the optical positioning frame 23.

[0058] By setting the locking member 24 as a locking nut, the rotating disc 21 and the optical positioning frame 23 can be conveniently locked, the connecting structure is simple and stable, and the rotating disc 21 and the optical positioning frame 23 can be conveniently loosened.

[0059] In some embodiments, the second connecting portion 212 has a cylindrical outer contour, so that the locking member 24 can be threadedly connected with the second connecting portion 212.

[0060] In some embodiments, the rotating disc 21 comprises a rotating body 211 and a second connecting portion 212. The rotating body 211 is the main structure of the rotating disc 21, and the rotating body 211 is connected with the base structure 10 in a rotatable manner. The second connecting portion 212 is arranged to facilitate the connection between the rotating disc 21 and the optical positioning frame 23.

[0061] Optionally, the rotating disc 21 has a ring structure, and the base structure 10 has a circular outer contour. The rotating disc 21 is sleeved on the outer periphery of the base structure 10.

[0062] Optionally, the rotating disc 21 has a ring structure, and the base structure 10 has a circular outer contour. The base structure 10 is sleeved on the outer periphery of the rotating disc 21.

[0063] In some embodiments of the present application, please refer toFigures 1 to 3 The driving member 22 comprises a driving rod 221 and a push-pull part 222 fixed to one end of the driving rod 221, and the end of the driving rod 221 away from the push-pull part 222 has a transmission part 223. The optical positioning frame 23 has a sliding hole 233 for the driving rod 221 to slide in. The optical positioning frame 23 is further provided with a limiting hole 234 for the push-pull part 222 to slide in. The push-pull part 222 at least partially passes through the limiting hole 234 to the outside of the optical positioning frame 23, and the limiting hole 234 and the sliding hole 233 are in communication with each other. The driving rod 221 is located in the sliding hole 233 in the optical positioning frame 23, and the push-pull part 222 is partially located in the sliding hole 233 in the optical positioning frame 23 and partially located outside the optical positioning frame 23. It can be understood that the driving member 22 is slidingly connected to the optical positioning frame 23, and the sliding direction of the driving member 22 is the length direction of the driving rod 221. When it is needed to drive the locking assembly 30, the rotating assembly 20 is first rotated to make the driving rod 221 opposite the position of the locking assembly 30, and then the push-pull part 222 is manually pushed to drive the driving rod 221 to the transmission hole 311. The driving rod 221 is rotated to make the transmission part 223 opposite the transmission hole 311, the transmission part 223 is inserted into the transmission hole 311, and the driving rod 221 is rotated again to drive the locking assembly 30 to lock or release the target member.

[0064] By slidingly arranging the driving rod 221 in the optical positioning frame 23, the driving rod 221 is switched between the first position and the second position by sliding, which is simple and convenient to operate. Moreover, the push-pull part 222 is arranged on the driving rod 221, which facilitates the user to push and pull the driving member 22 to slide.

[0065] In some embodiments, the push-pull part 222 and the driving rod 221 are connected in a T shape, so that both ends of the push-pull part 222 are exposed to the outside of the optical positioning frame 23. When the push-pull part 222 is pushed, it can act on both ends of the push-pull part 222, so that the driving member 22 is more evenly stressed and is less likely to jam when sliding.

[0066] In some embodiments, the sliding hole 233 and the limiting hole 234 are arranged in the first connecting part 232 of the optical positioning frame 23. The first connecting part 232 is at least partially hollow, and the hollow part forms the sliding hole 233. The limiting hole 234 is arranged on the side wall of the first connecting part 232, so as to communicate the sliding hole 233 with the outside space.

[0067] Optionally, the limiting hole 234 extends along the length direction of the driving rod 221. The limiting hole 234 is used to limit the sliding stroke of the push-pull part 222, so as to prevent the driving member 22 from exceeding the sliding stroke and damaging the locking assembly 30.

[0068] Optionally, the number of limiting holes 234 is two, and both ends of the push-pull part 222 pass through the two limiting holes 234, respectively.

[0069] In some embodiments of the present application, referring to Figures 5 to 10 , the locking assembly 30 comprises a toothed disc 32, a gear 31 intermeshing with the toothed disc 32, and a plurality of clamping structures 33 for clamping the target object, the driving member 22 is selectively connected with the gear 31 for driving the gear 31 to rotate when the driving member 22 is connected with the gear 31, the toothed disc 32 has a spiral groove 321, the clamping structures 33 are slidingly arranged in the spiral groove 321, the base structure 10 is provided with a radial groove 111 extending along the radial direction of the toothed disc 32, the clamping structures 33 are slidingly arranged in the radial groove 111, the rotation of the toothed disc 32 drives the clamping structures 33 to slide along the radial groove 111 to clamp or release the target object. The plurality of clamping structures 33 are arranged at intervals around the circumference of the target object, and the plurality of clamping structures 33 gradually approach each other to lock the target object, and the plurality of clamping structures 33 move away from each other to release the target object. The spiral groove 321 is a spiral-shaped groove, and the spiral shape refers to a spiral structure with gradually decreasing curvature from the center to the outer periphery. The driving member 22 is connected with the gear 31 inside the base structure 10 through the rotating disc 21 when the driving member 22 is in the first position, the gear 31 is driven to rotate when the driving member 22 rotates, the rotation of the gear 31 drives the toothed disc 32 to rotate, the spiral groove 321 on the toothed disc 32 also rotates accordingly, and the clamping structures 33 are driven to move, at the same time, the movement of the clamping structures 33 is limited by the radial groove 111 on the base structure 10, so that the clamping structures 33 can only move along the radial direction of the toothed disc 32, thereby realizing the mutual approach or mutual movement away of the plurality of clamping structures 33. After the clamping structures 33 clamp the target object, the driving member 22 is slid to the second position to disconnect with the gear 31, and the driving member 22 exits the base structure 10 at this time, the rotating disc 21 and the base structure 10 are in an unlocked state, the rotating disc 21 can rotate relative to the base structure 10, the locking member 24 locks the optical positioning frame 23 and the rotating disc 21, and the optical positioning frame 23, the driving member 22, the rotating disc 21 and the locking member 24 form an integral whole and can rotate relative to the base structure 10 to adjust the circumferential position of the optical positioning frame 23, at this time, the clamping structures 33 still clamp the target object and remain in the clamped state.

[0070] By arranging the intermeshing gear 31 and toothed disc 32, the rotational movement of the driving member 22 can be transmitted to the spiral groove 321 on the toothed disc 32, and the radial groove 111 on the base structure 10 is matched to realize the locking and releasing of the locking assembly 30.

[0071] In some embodiments, one end of the driving member 22 is provided with a transmission part 223, and the gear 31 is provided with a transmission hole 311, the center of which coincides with the center of the gear 31. It can be understood that the second rotation axis of the driving member 22 coincides with the rotation axis of the gear 31 when the driving member 22 rotates. Thus, when the driving member 22 rotates, the gear 31 rotates, the rotation of the gear 31 drives the rotation of the toothed disc 32, and the clamping structure 33 gradually approaches or gradually moves away from each other under the guidance of the spiral groove 321 and the radial groove 111.

[0072] Optionally, the rotation axis of the toothed disc 32 is perpendicular to the rotation axis of the gear 31, which can reduce the circumferential dimension of the locking assembly 30, and can also make the rotating assembly 20 arranged at a position extending radially outward of the toothed disc 32, which meets the position arrangement requirement of the optical positioning frame 23.

[0073] In some embodiments, the number of clamping structures 33 is two, three or four, and the specific number of clamping structures 33 is not limited here. The number of radial grooves 111 is the same as the number of clamping structures 33, and they are arranged one by one.

[0074] In some embodiments of the present application, please refer to Figures 6 to 8 , the clamping structure 33 comprises a clamping part 331 and a guide part 332 connected to each other, one side of the guide part 332 is embedded into the radial groove 111, the other side of the guide part 332 is provided with a protruding part 333 protruding, and the protruding part 333 is embedded into the spiral groove 321. The clamping part 331 is used for clamping the target member, and the clamping part 331 is generally in an arc structure or a flat plate structure. The guide part 332 is used for cooperating with the radial groove 111 and the spiral groove 321 at the same time. The radial groove 111 and the spiral groove 321 are arranged on opposite sides of the guide part 332, and the space on both sides of the guide part 332 is fully utilized to guide the movement of the clamping structure 33.

[0075] By arranging the guide part 332 on the clamping structure 33, the two sides of the guide part 332 are simultaneously cooperated with the radial groove 111 and the spiral groove 321, so as to realize the movement of the clamping structure 33 in the radial direction of the toothed disc 32.

[0076] In some embodiments, the number of protruding parts 333 is one, and the protruding part 333 extends into one layer of the spiral groove 321. Alternatively, the number of protruding parts 333 is two, and the two protruding parts 333 are arranged in a recess structure, and the two protruding parts 333 extend into two adjacent layers of the spiral groove 321, respectively, and the groove wall of the two adjacent layers of the spiral groove 321 extends into the recess structure.

[0077] In some embodiments of the present application, please refer to Figure 4 , Figure 5 , Figure 9 and Figure 10The base structure 10 comprises a base 11 and an end cover 12 fixed to the base 11, the locking assembly 30 is arranged in a space formed by the base 11 and the end cover 12, the base 11 has a circumferential outer wall, the rotating disc 21 has a circumferential inner wall, and the rotating disc 21 is rotatably sleeved on the outer periphery of the base 11. The base 11 and the end cover 12 are connected to form a containing space, and the locking assembly 30 is located in the containing space, so that the base structure 10 can protect the locking assembly 30. The circumferential outer wall of the base 11 and the circumferential inner wall of the rotating disc 21 are matched with each other, so that the rotating disc 21 can rotate relative to the base 11, and the rotating assembly 20 can rotate relative to the base 11. The circumferential outer wall and the circumferential inner wall are arranged on the same central axis, the rotating disc 21 rotates around the first rotating axis, and the central axes of the circumferential outer wall and the circumferential inner wall are parallel to the first rotating axis.

[0078] By arranging the circumferential outer wall on the base 11 and the circumferential inner wall on the rotating disc 21, the rotating disc 21 and the base 11 are matched in rotation, and the internal layout of the base structure 10 is not affected, and the rotating connection between the rotating assembly 20 and the base structure 10 is realized.

[0079] In some embodiments, the outer edge of the base structure 10 extends radially outward to form an annular portion 113 connected with the circumferential outer wall, for limiting the end face of the rotating disc 21.

[0080] In some embodiments, the rotating disc 21 comprises a rotating body 211 and a second connecting portion 212, and the rotating body 211 is rotatably sleeved on the outer periphery of the base 11.

[0081] In some embodiments, the radial slot 111 is arranged on the base 11, for guiding the movement of the clamping structure 33.

[0082] In some embodiments, referring to Figure 5 , the base 11 is provided with a first central hole 114, the tooth disc 32 is provided with a second central hole 322, and the end cover 12 is provided with a third central hole 121, the first central hole 114, the second central hole 322 and the third central hole 121 are arranged opposite to each other and opposite to the center surrounded by the plurality of clamping structures 33, for the target piece to pass through. When the optical mark clamping device is used, the target piece is arranged to pass through the first central hole 114, the second central hole 322 and the third central hole 121, and the plurality of clamping structures 33 surround the target piece, and the plurality of clamping structures 33 are driven by the driving piece 22 to clamp the target piece.

[0083] In some embodiments of the present application, referring to Figure 4 , Figure 5 and Figure 9, The base structure 10 is provided with a hollow protruding structure 112, at least part of the gear 31 extends into the protruding structure 112, and the protruding structure 112 is provided with a avoiding hole 1121 for the driving member 22 to extend into. The protruding structure 112 is hollow, and one end of the protruding structure 112 is open, so that the internal space of the protruding structure 112 is communicated with the main internal space of the base structure 10, and then the gear 31 extends into the internal space of the protruding structure 112.

[0084] Through the setting of the protruding structure 112, one is to accommodate at least part of the gear 31, and the other is that the protruding structure 112 protrudes from the surface of the base 11, so that the user can more obviously position the driving position of the locking assembly 30, and the rotating assembly 20 is rotated to the driving member 22 opposite to the protruding structure 112, and then the locking assembly 30 is prepared to be driven.

[0085] The above only describes the preferred embodiments of the present application and is not used to limit the present application, and any modification, equivalent replacement and improvement within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims

1. An optical mark clamping device, characterized in that: include: Base structure (10); A locking assembly (30) is installed on the base structure (10) and is used to clamp the target part; The rotating assembly (20) includes a rotating disk (21) rotatably connected to the base structure (10), a driving member (22) for driving the locking assembly (30) to clamp or release the target piece, and an optical positioning frame (23) connected to the rotating disk (21). The driving member (22) is movably connected to the optical positioning frame (23) such that the driving member (22) has at least a first position and a second position. When the driving member (22) is in the first position, it is connected to the locking assembly (30) to drive the locking assembly (30). When the driving member (22) is in the second position, it is disconnected from the locking assembly (30).

2. The optical mark clamping device as described in claim 1, characterized in that: One end of the driving member (22) has a transmission part (223), and the locking assembly (30) has a transmission hole (311) into which the transmission part (223) extends. When the transmission part (223) is inserted into the transmission hole (311), the driving member (22) is connected to the locking assembly (30), and the rotation of the driving member (22) causes the locking assembly (30) to clamp or loosen the target member. When the transmission part (223) exits the transmission hole (311), the driving member (22) is disconnected from the locking assembly (30).

3. The optical mark clamping device as described in claim 2, characterized in that: The driving component (22) and the optical positioning frame (23) are stationary relative to each other in the rotation direction of the driving component (22). When the optical positioning frame (23) rotates, it drives the driving component (22) to rotate synchronously.

4. The optical mark clamping device as described in claim 3, characterized in that: The rotating assembly (20) further includes a locking member (24). When the locking member (24) is in the locked state, the rotating disk (21) and the optical positioning frame (23) are fixed to each other. When the locking member (24) is in the unlocked state, the optical positioning frame (23) can rotate relative to the rotating disk (21) at least in the rotation direction of the driving member (22).

5. The optical mark clamping device as described in claim 4, characterized in that: The optical positioning frame (23) includes an optical positioning body (231) and a first connecting part (232) fixedly connected. The first connecting part (232) extends radially outward from one end away from the optical positioning body (231) to form a skirt structure (235). The rotating disk (21) has a second connecting part (212), and the outer periphery of the second connecting part (212) has an external thread. The locking member (24) is a locking nut. The locking nut is threadedly connected to the second connecting part (212), and the locking nut presses the skirt structure (235) against the second connecting part (212).

6. The optical mark clamping device as described in claim 3, characterized in that: The driving component (22) includes a driving rod (221) and a push-pull portion (222) fixed to one end of the driving rod (221). The end of the driving rod (221) away from the push-pull portion (222) has the transmission portion (223). The interior of the optical positioning frame (23) has a sliding hole (233) for the driving rod (221) to slide. The optical positioning frame (23) is also provided with a limiting hole (234) for the push-pull portion (222) to slide. The push-pull portion (222) passes through the limiting hole (234) to the outside of the optical positioning frame (23). The limiting hole (234) and the sliding hole (233) are in communication with each other.

7. The optical mark clamping device according to any one of claims 1-6, characterized in that: The locking assembly (30) includes a gear disc (32), a gear (31) meshing with the gear disc (32), and a plurality of clamping structures (33) for clamping the target component. The driving member (22) is selectively connected to the gear (31). When the driving member (22) is connected to the gear (31), it drives the gear (31) to rotate. The gear (31) drives the gear disc (32) to rotate relative to the base structure (10). The toothed disc (32) has a vortex groove (321), and the clamping structure (33) is slidably disposed in the vortex groove (321). The base structure (10) has a radial groove (111) extending along the radial direction of the toothed disc (32). The clamping structure (33) is slidably disposed in the radial groove (111). The rotation of the toothed disc (32) drives the clamping structure (33) to slide along the radial groove (111) to clamp or release the target part.

8. The optical mark clamping device as described in claim 7, characterized in that: The clamping structure (33) includes a clamping part (331) and a guide part (332) connected to each other. One side of the guide part (332) is embedded in the radial groove (111), and the other side of the guide part (332) is provided with a protrusion part (333), which is embedded in the vortex groove (321).

9. The optical mark clamping device as described in claim 7, characterized in that: The base structure (10) is provided with a hollow protrusion structure (112), at least a portion of the gear (31) extends into the protrusion structure (112), and the protrusion structure (112) is provided with a clearance hole (1121) for the drive member (22) to extend into.

10. The optical mark clamping device according to any one of claims 1-6, characterized in that: The base structure (10) includes a base (11) and an end cap (12) fixed to the base (11). The locking assembly (30) is disposed in the space formed by the base (11) and the end cap (12). The base (11) has a circumferential outer wall, and the rotating disk (21) has a circumferential inner wall, so that the rotating disk (21) can be rotated and fitted onto the outer circumference of the base (11).

Images