CN219625751U - Clamping and fixing device - Google Patents

Abstract

The application is suitable for the technical field of optical fiber connectors and provides a clamping and fixing device. The clamping and fixing device is used for clamping and fixing the optical fiber connector, the optical fiber connector comprises a connector body, a limiting body and an inserting core, the inserting core is arranged on the connector body, and the limiting body is arranged on the connector body and sleeved on the periphery of the inserting core; the clamping and fixing device comprises a fixing part and a limiting part, wherein the fixing part is provided with a fixing hole, the limiting part is arranged on one side of the fixing part, and the limiting part is provided with a limiting cavity; the pore wall of the fixed hole is used for clamping the lock pin, and the cavity wall of the limiting cavity is used for clamping the limiting body. The limiting part and the limiting cavity strengthen the limiting effect on the optical fiber connector, reduce the possibility of shaking the optical fiber connector on the clamping and fixing device, and further properly improve the detection efficiency.

Description

Clamping and fixing device

Technical Field

The application belongs to the technical field of optical fiber connectors, and particularly relates to a clamping and fixing device.

Background

The optical fiber connector is a device for detachably connecting optical fibers, and is usually positioned at the head end or the tail end of one optical fiber, and the optical fiber connector can precisely butt-joint the two end surfaces of two optical fibers so as to enable the light energy output by the transmitting optical fiber to be coupled into the receiving optical fiber to the greatest extent.

The degree of precision of the end faces of the fiber optic connectors often determines the efficiency with which light is coupled between the two optical fibers. In order to ensure the coupling transmission efficiency of the optical signals, the optical fibers need to be inspected and screened in all aspects before leaving the factory.

When inspecting an optical fiber connector, the optical fiber connector is often required to be clamped and fixed by using the clamping and fixing device, but the existing clamping and fixing device can only clamp and fix a ceramic ferrule in the optical fiber connector, and the design enables the optical fiber connector to shake easily on the clamping and fixing device, so that the detection efficiency can be affected.

Disclosure of Invention

The embodiment of the utility model aims to provide a clamping and fixing device, which aims to solve the technical problem that the clamping and fixing device cannot firmly clamp an optical fiber connector in the prior art.

In order to achieve the above object, according to one aspect of the present utility model, there is provided a clamping and fixing device for clamping and fixing an optical fiber connector, the optical fiber connector including a connector body, a stopper body and a ferrule, the ferrule being disposed on the connector body, the stopper body being disposed on the connector body and being sleeved on an outer periphery of the ferrule; the clamping and fixing device comprises a fixing part and a limiting part, wherein the fixing part is provided with a fixing hole, the limiting part is arranged on one side of the fixing part, and the limiting part is provided with a limiting cavity; the pore wall of the fixed hole is used for clamping the lock pin, and the cavity wall of the limiting cavity is used for clamping the limiting body.

Optionally, the plurality of limiting parts are at least two types of specification, the limiting part of the first type of specification is a first limiting part, the limiting part of the second type of specification is a second limiting part, and the shape of the limiting cavity in the first limiting part is different from the shape of the limiting cavity in the second limiting part; the clamping and fixing device further comprises carrying parts, wherein the carrying parts are arranged on the carrying parts at intervals along the preset direction, and the carrying parts can be arranged on the fixing parts in a sliding manner along the preset direction, so that the limiting parts can be arranged corresponding to the fixing holes.

Optionally, the fixing part is provided with a step chute, and the extending direction of the step chute is parallel to the preset direction; the step chute comprises a first chute section and a second chute section, the first chute section extends from the outer surface of the fixed part to the inside of the fixed part, the second chute section is arranged on one side of the first chute section and is communicated with the first chute section, and the chute top of the second chute section at least partially covers the projection of the first chute section onto the chute top of the second chute section; the carrying part is slidably arranged in the second groove section along the preset direction, and the limiting part is at least partially positioned in the first groove section.

Optionally, a plurality of positioning through grooves are arranged on the groove wall of the second groove section at intervals along the preset direction, and the number of the positioning through grooves is the same as that of the limiting parts; the clamping and fixing device further comprises a positioning part, a first end of the positioning part is fixedly connected with the carrying part, a second end of the positioning part is arranged on one side of the carrying part, and the second end of the positioning part can move along the direction close to or far from the positioning through groove and can be inserted into any one of the positioning through grooves; and under the condition that the second end of the positioning part is inserted into any positioning through groove in the positioning through grooves, the limiting part which is arranged corresponding to the positioning through groove in the limiting parts is arranged corresponding to the fixing hole.

Optionally, an installation groove is formed in the outer surface of the carrying part, the first end of the positioning part is fixedly connected with the groove wall of the installation groove, and a first moving gap for the positioning part to move along the direction approaching or departing from the positioning through groove is formed between the outer surface of the positioning part, which is close to the groove wall of the installation groove, and the groove wall of the installation groove.

Optionally, the carrying part is provided with a plurality of containing through grooves which are distributed at intervals, the number of the containing through grooves is the same as that of the limiting parts, the containing through grooves are in one-to-one correspondence, and each limiting part is correspondingly arranged in each containing through groove; the limiting part comprises a limiting part, the limiting cavity is arranged on the limiting part, the limiting part comprises a fixed section and an adjusting section, the fixed section is fixedly connected with the groove wall of the containing through groove, and the adjusting section is arranged on one side of the fixed section and can move along the direction approaching or far away from the fixed section; the limiting part further comprises a connecting piece, the connecting piece is located on one side of the limiting cavity, the first end of the connecting piece is fixedly connected with the carrying part, the second end of the connecting piece is fixedly connected with the adjusting section, and a second moving gap for the connecting piece to drive the adjusting section to move along the direction close to or far away from the fixed section is formed between the outer surface of the groove wall of the through groove of the connecting piece and the groove wall of the through groove.

Optionally, the optical fiber connector has three specifications, the first specification is a first optical fiber connector, the second specification is a second optical fiber connector, the third specification is a third optical fiber connector, the shape of the limiting body in the first optical fiber connector is different from that of the limiting body in the second optical fiber connector, the limiting body in the second optical fiber connector is identical to that in the third optical fiber connector, one sides of the limiting bodies in the second optical fiber connector and the third optical fiber connector are fixedly connected with limiting keys, and the width of the limiting keys in the second optical fiber connector is larger than that of the limiting keys in the third optical fiber connector; the three limiting parts are respectively a first limiting part, a second limiting part and a third limiting part, the first limiting part is arranged corresponding to the first optical fiber connector, the second limiting part is arranged corresponding to the second optical fiber connector, the third limiting part is arranged corresponding to the third optical fiber connector, and a limiting cavity in the third limiting part is identical to a limiting cavity in the second limiting part; limiting grooves are formed in limiting pieces in the second limiting part and the third limiting part, and the limiting grooves are located between the fixing section and the adjusting section; under the condition that the clamping and fixing device clamps and fixes the second optical fiber connector, the limiting key in the second optical fiber connector is penetrated in the limiting groove in the second limiting part and is abutted with two opposite groove walls in the limiting groove in the second limiting part, and under the condition that the clamping and fixing device clamps and fixes the third optical fiber connector, the limiting key in the third optical fiber connector is penetrated in the limiting groove in the third limiting part and is abutted with two opposite groove walls in the limiting groove in the third limiting part.

Optionally, the clamping and fixing device further comprises a fixing column, wherein the fixing column is arranged on the outer side surface of the fixing part, which is close to the carrying part, and is coaxially arranged with the fixing hole, and the inner diameter of the fixing column is the same as the aperture of the fixing hole; the fixed column comprises a fixed part and a movable part, the fixed part is fixedly connected with the fixed part, and the movable part is arranged on one side of the fixed part and can move on the fixed part along the direction approaching to or separating from the fixed part; the fixed part is provided with an installation through groove, the clamping and fixing device further comprises a movement adjusting part, the movement adjusting part is arranged in the installation through groove, a first end of the movement adjusting part is fixedly connected with the movement part, a second end of the movement adjusting part is fixedly connected with the groove wall of the installation through groove, and a third movement gap for the movement adjusting part to drive the movement part to move along the direction close to or far away from the fixed part is arranged between the outer surface of the groove wall of the installation through groove, which is close to the movement adjusting part, and the groove wall of the installation through groove.

Optionally, the clamping and fixing device further comprises a driving part, the driving part comprises an operation piece and a driving screw, the driving screw is fixedly installed on the first end of the operation piece, a threaded hole extending into the installation through groove is formed in the fixing part, one end, far away from the operation piece, of the driving screw penetrates through the threaded hole and penetrates into the installation through groove, the driving screw can be abutted against the outer surface, far away from the moving part, of the moving adjusting part, and the outer peripheral surface of the driving screw is in threaded connection with the hole wall of the threaded hole; the operating piece comprises a first operating rod and a second operating rod, the second operating rod is arranged on one side of the first operating rod, the length direction of the first operating rod is parallel to the length direction of the second operating rod, the first end of the first operating rod is fixedly connected with the first end of the second operating rod, an adjusting gap is arranged between the first operating rod and the second operating rod, and a penetrating space for a driving screw to penetrate is arranged between the first operating rod and the second operating rod; the operation piece further comprises a fixing screw which penetrates through the first operation rod from the end face of the first operation rod far away from the second operation rod and is screwed into the second operation rod, so that the driving screw is fixedly arranged in the penetrating space; the corner of fixed part is provided with accommodation space, and the first end setting of operating piece is in accommodation space to can rotate around drive screw's axis in accommodation space, keep away from the surface of screw hole in the operating piece and the surface looks parallel and level of fixed part.

Optionally, the clamping and fixing device further comprises a moving handle, wherein the moving handle is arranged on one side of the carrying part far away from the fixing part and is fixedly connected with the carrying part.

The clamping and fixing device provided by the application has the beneficial effects that: compared with the prior art, when the optical fiber connector is clamped and fixed and detected, the extending directions of the fixing hole and the limiting cavity are parallel to the horizontal direction, the optical fiber connector is aligned with the fixing hole, the inserting core in the optical fiber connector is driven to be inserted into the fixing hole, the limiting body is inserted into the limiting cavity, in the process, the outer peripheral surface of the inserting core is attached to the inner hole wall of the fixing hole, and the outer peripheral surface of the limiting body is attached to the inner hole wall of the limiting cavity; after the steps are completed, the optical fiber connector is firmly clamped and fixed on the clamping and fixing device, so that the optical fiber connector can be detected in all directions. The limiting part and the limiting cavity strengthen the limiting effect on the optical fiber connector, reduce the possibility of shaking the optical fiber connector on the clamping and fixing device, and further properly improve the detection efficiency.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the embodiments or the description of the prior art will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic structural diagram of a clamping and fixing device according to an embodiment of the present application;

fig. 2 is a schematic structural diagram of a second optical fiber connector or a third optical fiber connector according to an embodiment of the present application;

fig. 3 is a schematic structural diagram of an assembled fixing portion, fixing columns and a movement adjusting portion according to an embodiment of the present application;

fig. 4 is a schematic top view of an assembled fixing portion, fixing columns and a movement adjusting portion according to an embodiment of the present application;

fig. 5 is a schematic structural diagram of an assembled carrying part, a limiting part and a moving handle according to an embodiment of the present application;

fig. 6 is a schematic structural diagram of an operating member according to an embodiment of the present application.

Reference numerals related to the above figures are as follows:

100. a fixing part; 110. a step chute; 120. positioning through grooves; 130. a fixing hole; 200. a limit part; 210. a limiting piece; 211. a fixed section; 212. a regulating section; 213. a limit groove; 220. a connecting piece; 300. a carrying part; 400. a positioning part; 500. a moving handle; 600. fixing the column; 610. a fixing portion; 620. a moving part; 700. a movement adjusting section; 800. a driving section; 810. an operating member; 811. a first lever; 812. a second lever; 820. driving the screw; 830. a fixing screw; 840. a blocking block; 900. an optical fiber connector; 910. a connector body; 920. a limiting body; 930. a core insert; 940. and a limit key.

Detailed Description

In order to make the technical problems, technical schemes and beneficial effects to be solved more clear, the application is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the application.

It will be understood that when an element is referred to as being "mounted" or "disposed" on another element, it can be directly on the other element or be 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 be indirectly connected to the other element. Embodiments of the application and features of the embodiments may be combined with each other without conflict. The application will be described in detail below with reference to the drawings in connection with embodiments.

It is to be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are merely for convenience in describing and simplifying the description based on the orientation or positional relationship shown in the drawings, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus are not to be construed as limiting the application.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present application, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

As described in the background art, at present, an optical fiber connector is a device for detachably connecting optical fibers, and is usually located at the head end or the tail end of one optical fiber, and the optical fiber connector can precisely butt the two end surfaces of two optical fibers, so that the optical energy output by the transmitting optical fiber can be coupled into the receiving optical fiber to the maximum extent. The degree of precision of the end faces of the fiber optic connectors often determines the efficiency with which light is coupled between the two optical fibers. In order to ensure the coupling transmission efficiency of the optical signals, the optical fibers need to be inspected and screened in all aspects before leaving the factory. When inspecting an optical fiber connector, the optical fiber connector is often required to be clamped and fixed by using the clamping and fixing device, but the existing clamping and fixing device can only clamp and fix a ceramic ferrule in the optical fiber connector, and the design enables the optical fiber connector to shake easily on the clamping and fixing device, so that the detection efficiency can be affected.

Referring to fig. 1 to 4, in order to solve the above-mentioned problems, according to an aspect of the present application, an embodiment of the present application provides a clamping and fixing device for clamping and fixing an optical fiber connector 900, the optical fiber connector 900 includes a connector body 910, a limiting body 920, and a ferrule 930, the ferrule 930 is disposed on the connector body 910, the limiting body 920 is disposed on the connector body 910, and is sleeved on an outer circumference of the ferrule 930. The clamping and fixing device comprises a fixing part 100 and a limiting part 200, wherein the fixing part 100 is provided with a fixing hole 130, the limiting part 200 is arranged on one side of the fixing part 100, and the limiting part 200 is provided with a limiting cavity; the hole wall of the fixing hole 130 is used for clamping the ferrule 930, and the cavity wall of the limiting cavity is used for clamping the limiting body 920.

In the embodiment of the present application, the ferrule 930 is fixedly connected to the connector body 910, the ferrule 930 is made of ceramic material, however, in other embodiments, the ferrule 930 may be made of other materials, the limiting body 920 is fixedly connected to the connector body 910, the optical fiber connector 900 belongs to a conventional apparatus, and the specific structure belongs to the common general knowledge of those skilled in the art, so that the specific structure and the specific connection manner of each component in the optical fiber connector 900 are not described in detail herein. In the case that the clamping fixture clamps and fixes the optical fiber connector 900, the limiting cavity is located at one side of the fixing hole 130, and the cross section of the limiting cavity completely covers the cross section of the fixing hole 130. The extending direction of the fixing hole 130 is the same direction with the extending direction of the spacing cavity, when the hole wall of the fixing hole 130 clamps the fixed lock pin 930, the lock pin 930 is penetrated in the fixing hole 130 and is attached to the hole wall of the fixing hole 130, when the cavity wall of the spacing cavity clamps the fixed spacing body 920, the spacing body 920 is penetrated in the spacing cavity and is attached to the cavity wall of the spacing cavity. In a specific application, when the optical fiber connector 900 is required to be clamped and fixed and the optical fiber connector 900 is detected, the extending directions of the fixing hole 130 and the limiting cavity are parallel to the horizontal direction, then the optical fiber connector 900 is aligned with the fixing hole 130, the insert core 930 in the optical fiber connector 900 is driven to be inserted into the fixing hole 130, the limiting body 920 is inserted into the limiting cavity, in the process, the outer peripheral surface of the insert core 930 is attached to the inner hole wall of the fixing hole 130, and the outer peripheral surface of the limiting body 920 is attached to the inner hole wall of the limiting cavity; after the above steps are completed, the optical fiber connector 900 is firmly clamped and fixed on the clamping and fixing device, so that the optical fiber connector 900 can be detected in all directions. The limiting part 200 and the limiting cavity strengthen the limiting effect on the optical fiber connector 900, reduce the possibility of shaking the optical fiber connector 900 on the clamping and fixing device, and further properly improve the detection efficiency.

Referring to fig. 1 and 5, in the present embodiment, the number of the limiting portions 200 is plural, the number of the limiting portions 200 has at least two types, the limiting portion 200 of the first type is a first limiting portion, the limiting portion 200 of the second type is a second limiting portion, and the shape of the limiting cavity in the first limiting portion is different from the shape of the limiting cavity in the second limiting portion. The clamping and fixing device further comprises a carrying part 300, wherein the limiting parts 200 are arranged on the carrying part 300 at intervals along a preset direction, and the carrying part 300 can be arranged on the fixing part 100 in a sliding manner along the preset direction, so that the limiting parts 200 can be arranged corresponding to the fixing holes 130.

In the embodiment of the present application, each of the limiting portions 200 is fixedly connected to the mounting portion 300, and the preset direction is parallel to the length direction of the mounting portion 300. In a specific application, when the optical fiber connectors 900 with different specifications are required to be clamped and fixed, the carrying part 300 is driven to move on the fixing part 100 until the limiting part 200 corresponding to the optical fiber connector 900 to be clamped and fixed in the plurality of limiting parts 200 moves to the position of the fixing hole 130, at this time, the limiting part 200 is corresponding to the fixing hole 130, then the ferrule 930 in the optical fiber connector 900 to be clamped and fixed is inserted into the fixing hole 130, and the limiting body 920 is inserted into the limiting cavity of the limiting part 200, so that the optical fiber connector 900 to be clamped and fixed is clamped and fixed by the clamping and fixing device. The plurality of limiting parts 200 and the carrying part 300 are convenient for the clamping and fixing device to independently clamp and fix the optical fiber connectors 900 with different specifications, and the application range of the clamping and fixing device is widened.

Referring to fig. 1 and 3, the fixing portion 100 in the present embodiment is provided with a step chute 110, and an extending direction of the step chute 110 is parallel to a preset direction; the stepped sliding chute 110 comprises a first slot section and a second slot section, the first slot section extends from the outer surface of the fixed part 100 to the inside of the fixed part 100, the second slot section is arranged on one side of the first slot section and is communicated with the first slot section, and the slot top of the second slot section at least partially covers the projection of the first slot section onto the slot top of the second slot section; the carrying portion 300 is slidably disposed in the second groove section along the preset direction, and the limiting portion 200 is at least partially disposed in the first groove section.

In the embodiment of the application, the first groove section is in a cuboid shape, the second groove section is also in a cuboid shape, the area of the groove top of the second groove section is larger than the projected area of the first groove section projected onto the groove top of the second groove section, and the fixing hole 130 is arranged on the groove bottom of the second groove section; the outer surface of the carrying part 300, which is close to the fixing part 100, is a first outer surface, the first outer surface is attached to the bottom of the second groove section, the second outer surface and the third outer surface are arranged adjacent to the first outer surface in the carrying part 300, the second outer surface and the third outer surface are attached to two groove walls arranged opposite to each other in the second groove section, the fourth outer surface is arranged opposite to the first outer surface in the carrying part 300, and the fourth outer surface is attached to the top of the second groove section. The stepped chute 110 not only facilitates the sliding of the carrying part 300 on the fixing part 100, but also plays a limiting role on the carrying part 300, thereby avoiding the situation that the carrying part 300 is separated from the fixing part 100 when the carrying part 300 slides on the fixing part 100. In addition, both ends of the stepped chute 110 are provided to be opened, so that the mounting portion 300 and the fixing portion 100 are conveniently assembled and disassembled.

Referring to fig. 1, 3, 4 and 5, as an alternative manner in the embodiment of the present application, a plurality of positioning through grooves 120 are disposed on the groove wall of the second groove section at intervals along the preset direction, and the number of the positioning through grooves 120 is the same as the number of the limiting parts 200. The clamping and fixing device further comprises a positioning part 400, wherein a first end of the positioning part 400 is fixedly connected with the carrying part 300, a second end of the positioning part 400 is arranged on one side of the carrying part 300, and the second end of the positioning part 400 can move along a direction approaching to or separating from the positioning through groove 120 and can be inserted into any positioning through groove 120 in the plurality of positioning through grooves 120; when the second end of the positioning portion 400 is inserted into one positioning through groove 120 of the plurality of positioning through grooves 120, the limiting portion 200 of the plurality of limiting portions 200, which is provided corresponding to the positioning through groove 120, is provided corresponding to the fixing hole 130.

In this alternative manner, three limiting portions 200 are provided, and correspondingly, three positioning through grooves 120 are provided, and in the case that the second end of the positioning portion 400 is inserted into the positioning through groove 120 located on the right side of the three positioning through grooves 120, the limiting portion 200 located on the left side of the three limiting portions 200 is correspondingly provided with the fixing hole 130; in the case that the second end of the positioning part 400 is inserted into the middle positioning through groove 120 of the three positioning through grooves 120, the middle limiting part 200 of the three limiting parts 200 is disposed corresponding to the fixing hole 130; in the case that the second end of the positioning part 400 is inserted into the left positioning through groove 120 of the three positioning through grooves 120, the right limiting part 200 of the three limiting parts 200 is disposed corresponding to the fixing hole 130; of course, in other embodiments, two, four or other numbers of the limiting portions 200 may be provided, and corresponding positioning through slots 120 may be provided, and four or other numbers may be provided, where only when the second end of the positioning portion 400 is inserted into one positioning through slot 120 of the positioning through slots 120, the limiting portions 200 of the positioning portions 200 that are provided corresponding to the positioning through slots 120 may be provided corresponding to the fixing holes 130. The positioning portion 400 and the positioning through grooves 120 are convenient for positioning the required limiting portion 200 to the position corresponding to the fixing hole 130, and limiting the required limiting portion 200, so that the limiting portion 200 and the fixing hole 130 are convenient for limiting the optical fiber connector 900, the situation that the limiting portion 200 slides along the preset direction on the fixing portion 100 when the clamping fixing device clamps and fixes the optical fiber connector 900 is avoided, and the normal development of the clamping fixing operation is ensured.

Referring to fig. 5, as an embodiment of the present alternative, an installation groove is provided on an outer surface of the mounting portion 300, a first end of the positioning portion 400 is fixedly connected to a groove wall of the installation groove, and a first movement gap for moving the positioning portion 400 in a direction approaching or separating from the positioning through groove 120 is provided between an outer surface of the positioning portion 400 near the groove wall of the installation groove and the groove wall of the installation groove.

In this embodiment, the positioning portion 400 is similar to a cuboid in shape, a first end of the positioning portion 400 is fixedly connected with a first groove wall of the mounting groove, the outer surface of the positioning portion 400, which is close to the groove wall of the mounting groove, and the intervals between a second groove wall and a third groove wall of the mounting groove are all first moving gaps, the second groove wall is adjacent to the first groove wall, the third groove wall is opposite to the first groove wall, and the third groove wall is adjacent to the second groove wall; the second end of the positioning part 400 is a positioning protrusion that can be inserted into the positioning through-groove 120. In the actual manufacturing of the mounting portion 300 and the positioning portion 400, the positioning protrusion is first integrally formed on the outer surface of the mounting portion 300, and then the first movement gap is processed on the mounting portion 300 along the trajectory of the positioning portion 400.

In a specific application, when the required limiting portion 200 is to be positioned at a position corresponding to the fixing hole 130, the carrying portion 300 is driven to move in the second slot segment, at this time, under the action of the pressing force applied by the wall of the second slot segment and the first moving gap, the second end of the positioning portion 400 is located in the mounting slot, and after the second end of the positioning portion 400 moves to a position aligned with the positioning through slot 120 to be inserted, the second end of the positioning portion 400 is inserted into the positioning through slot 120 under the action of self-elastic force, so that the required limiting portion 200 is positioned at a position corresponding to the fixing hole 130. When the second end of the positioning portion 400 is required to be inserted into the other positioning through-grooves 120, an external object is used to drive the second end of the positioning portion 400 to be separated from the positioning through-grooves 120 from the other end of the positioning through-grooves 120, then the carrying portion 300 is driven to move on the fixing portion 100, and finally after the carrying portion 300 moves to the designated position, the second end of the positioning portion 400 is inserted into the corresponding positioning through-groove 120 under the action of self-elastic force. The above design facilitates the insertion of the second end of the positioning portion 400 into the desired positioning through-slot 120, and also facilitates the removal of the second end of the positioning portion 400 from the positioning through-slot 120.

As another embodiment of this alternative, an installation groove is provided on the outer surface of the mounting portion 300, the positioning portion 400 is a positioning spring, a first end of the positioning spring is fixedly connected to a bottom of the installation groove, and a second end of the positioning spring can move in a direction approaching or separating from the positioning through groove 120 and can be inserted into any one positioning through groove 120 of the plurality of positioning through grooves 120. The second end of the positioning portion 400 can be inserted into the desired positioning through-slot 120, or the second end of the positioning portion 400 can be pulled out from the positioning through-slot 120.

Referring to fig. 1 and 5, the carrying portion 300 in this embodiment is provided with a plurality of accommodating through slots distributed at intervals, the number of the accommodating through slots is the same as that of the limiting portions 200, and the limiting portions 200 are correspondingly disposed in the accommodating through slots one by one. The limiting part 200 comprises a limiting part 210, a limiting cavity is formed in the limiting part 210, the limiting part 210 comprises a fixing section 211 and an adjusting section 212, the fixing section 211 is fixedly connected with the groove wall of the containing through groove, and the adjusting section 212 is arranged on one side of the fixing section 211 and can move along the direction approaching or separating from the fixing section 211; the limiting part 200 further comprises a connecting piece 220, the connecting piece 220 is located at one side of the limiting cavity, a first end of the connecting piece 220 is fixedly connected with the carrying part 300, a second end of the connecting piece 220 is fixedly connected with the adjusting section 212, and a second moving gap for the connecting piece 220 to drive the adjusting section 212 to move along a direction approaching or far away from the fixing section 211 is formed between the outer surface of the wall of the connecting piece 220 close to the containing through groove and the wall of the containing through groove.

In the embodiment of the present application, the limiting portion 200 and the carrying portion 300 are integrally formed and manufactured, the limiting cavity is a through cavity, and the cavity bottom of the limiting cavity is flush with the bottom of the second groove section. In actual manufacturing of the limiting portion 200, first, a limiting cavity is machined on an outer surface of the mounting portion 300 away from the fixing portion 100, and then a second movement gap is machined on the fixing portion 100 along a track of the connecting member 220.

In a specific application, when the optical fiber connector 900 needs to be clamped and fixed, the optical fiber connector 900 is aligned with the fixing hole 130, then the ferrule 930 in the optical fiber connector 900 is driven to be inserted into the fixing hole 130, the limiting body 920 is inserted into the limiting cavity, the adjusting section 212 moves in a direction away from the fixing section 211 under the action of the pushing force exerted by the limiting body 920 in the process that the limiting body 920 is inserted into the limiting cavity, the connecting piece 220 is pushed to move in the second moving gap, after the limiting body 920 is inserted into the limiting cavity, the connecting piece 220 moves in the second moving gap under the action of self-elastic force so as to realize resetting, and the adjusting section 212 also realizes resetting under the action of the connecting piece 220. The design is not only convenient for inserting the limiting body 920 into the limiting cavity, but also convenient for better limiting the limiting body 920 after the limiting body 920 is inserted into the limiting cavity.

Referring to fig. 1, 2 and 5, as an alternative way in the embodiment of the present application, the optical fiber connector 900 has three specifications, the first specification is a first optical fiber connector, the second specification is a second optical fiber connector, the third specification is a third optical fiber connector, the shape of the limit body 920 in the first optical fiber connector is different from the shape of the limit body 920 in the second optical fiber connector, the limit body 920 in the second optical fiber connector is the same as the limit body 920 in the third optical fiber connector, one side of each of the limit bodies 920 in the second optical fiber connector and the third optical fiber connector is fixedly connected with a limit key 940, and the width of the limit key 940 in the second optical fiber connector is larger than the width of the limit key 940 in the third optical fiber connector.

The three limiting parts 200 are respectively a first limiting part, a second limiting part and a third limiting part, the first limiting part is arranged corresponding to the first optical fiber connector, the second limiting part is arranged corresponding to the second optical fiber connector, the third limiting part is arranged corresponding to the third optical fiber connector, and a limiting cavity in the third limiting part is identical to a limiting cavity in the second limiting part; the limiting bodies 920 in the second limiting part and the third limiting part are respectively provided with a limiting groove 213, and the limiting grooves 213 are positioned between the fixed section 211 and the adjusting section 212; under the condition that the clamping and fixing device clamps and fixes the second optical fiber connector, a limit key 940 in the second optical fiber connector is arranged in a limit groove 213 in the second limit part in a penetrating way and is abutted with two opposite groove walls in the limit groove 213 in the second limit part; under the condition that the clamping and fixing device clamps and fixes the third optical fiber connector, a limiting key 940 in the third optical fiber connector is arranged in a limiting groove 213 in the third limiting part in a penetrating manner and is abutted against two opposite groove walls in the limiting groove 213 in the third limiting part.

In this alternative, the specification of the first optical fiber connector is an SC-type optical fiber connector, and the cross section of the limiting body 920 in the first optical fiber connector is rectangular; the specification of the second optical fiber connector is a wide-key FC type optical fiber connector, the specification of the third optical fiber connector is a narrow-key FC type optical fiber connector, the cross sections of the limiting bodies 920 in the second optical fiber connector and the third optical fiber connector are circular, and the limiting keys 940 in the second optical fiber connector and the third optical fiber connector are limiting sheets. The first limiting portion, the second limiting portion and the third limiting portion are sequentially arranged from left to right, but in other embodiments, the first limiting portion, the second limiting portion and the third limiting portion may be sequentially arranged from right to left. The shape of the limiting piece 210 in the first limiting part is cuboid, the cross section of the limiting cavity in the first limiting part is rectangular, the connecting piece 220 in the first limiting part is long, the first end of the connecting piece 220 is fixedly connected with the groove wall of the containing through groove, and the second end of the connecting piece is fixedly connected with the adjusting section 212; the shape of the limiting piece 210 in the second limiting portion and the shape of the limiting piece 210 in the third limiting portion are both cylindrical, the height of the limiting piece 210 in the second limiting portion and the height of the limiting piece 210 in the third limiting portion are equal and are larger than the thickness of the carrying portion 300, the end face, away from the fixing portion 100, of the limiting piece 210 in the second limiting portion and the end face, away from the fixing portion 100, of the limiting piece 210 in the third limiting portion are located outside the first groove section, the cross section of the limiting cavity in the second limiting portion and the cross section of the limiting cavity in the third limiting portion are both circular, the connecting piece 220 in the second limiting portion and the connecting piece 220 in the third limiting portion are all inverted U-shaped blocks, and the first end of the connecting piece 220 is fixedly connected with the fixing section 211 so as to be fixedly connected with the carrying portion 300, and the second end is fixedly connected with the adjusting portion 212. The limit key 940 in the second optical fiber connector abuts against the outer side wall of the fixed section 211 in the second limit portion and abuts against the outer side wall of the adjustment section 212 in the second limit portion under the condition that the clamping fixture clamps and fixes the second optical fiber connector, and abuts against the outer side wall of the fixed section 211 in the third limit portion and abuts against the outer side wall of the adjustment section 212 in the third limit portion under the condition that the clamping fixture clamps and fixes the third optical fiber connector. Of course, in other embodiments, the optical fiber connector 900 has various other specifications, and the corresponding limiting portion 200 may also be provided with various specifications, so as to limit the corresponding optical fiber connector 900.

The first limiting part, the second limiting part and the third limiting part can limit the optical fiber connectors 900 with different specifications, and the application range of the clamping and fixing device is widened. The design of the connecting piece 220 in the first limiting part, the connecting piece 220 in the second limiting part and the connecting piece 220 in the third limiting part is convenient for driving the adjusting sections 212 which are respectively and correspondingly arranged to correspondingly move, so that the limiting body 920 is convenient to insert into the limiting cavity, and meanwhile, the limiting body 920 is convenient to better limit after the limiting body 920 is inserted into the limiting cavity. The limiting groove 213 in the second limiting portion and the limiting groove 213 in the third limiting portion facilitate the storage of the limiting keys 940 in the optical fiber connector 900, and simultaneously, the limiting effect of the limiting portion 200 on the corresponding optical fiber connector 900 is improved.

In addition, the outer surfaces of the fixing section 211 and the adjusting section 212 in the first limiting part, which are close to each other, are respectively provided with a chamfer for inserting the limiting body 920 into the limiting cavity, and the outer surfaces of the fixing section 211 and the adjusting section 212 in the second limiting part, which are close to each other, are respectively provided with a chamfer for inserting the limiting key 940 into the limiting groove 213.

Referring to fig. 1 and 5, as an alternative to the embodiment of the present application, the clamping and fixing device further includes a moving handle 500, where the moving handle 500 is disposed at a side of the mounting portion 300 away from the fixing portion 100 and is fixedly connected to the mounting portion 300. The movable handle 500 and the carrying part 300 are integrally formed and manufactured, and the movable handle 500 is convenient for driving the carrying part 300 to move in the second groove section.

Referring to fig. 1, 3 and 4, the clamping and fixing device in this embodiment further includes a fixing post 600, where the fixing post 600 is disposed on an outer side surface of the fixing portion 100 near the mounting portion 300 and is disposed coaxially with the fixing hole 130, and an inner diameter of the fixing post 600 is the same as an aperture of the fixing hole 130. The fixing post 600 includes a fixing portion 610 and a moving portion 620, the fixing portion 610 is fixedly coupled with the fixing portion 100, and the moving portion 620 is disposed at one side of the fixing portion 610 and can move on the fixing portion 100 in a direction approaching or separating from the fixing portion 610. The fixing portion 100 is provided with a mounting through groove, the clamping fixing device further comprises a moving adjusting portion 700, the moving adjusting portion 700 is arranged in the mounting through groove, a first end of the moving adjusting portion 700 is fixedly connected with the moving portion 620, a second end of the moving adjusting portion 700 is fixedly connected with a groove wall of the mounting through groove, and a third moving gap for the moving adjusting portion 700 to drive the moving portion 620 to move along a direction approaching or far away from the fixing portion 610 is formed between the outer surface of the groove wall of the mounting through groove, which is close to the mounting through groove, of the moving adjusting portion 700 and the groove wall of the mounting through groove.

In the embodiment of the application, the fixing post 600 is fixedly connected to the bottom of the second slot section, the movement adjusting part 700 comprises a triangle section and a strip section, wherein the triangle section is fixedly connected with the movement part 620, the length direction of the strip section is parallel to the preset direction, the long side section of the triangle section is fixedly connected with the long side section of the strip section, the first end of the strip section is fixedly connected with the slot wall of the installation through slot, a third movement gap is formed between the second end and other parts of the strip section and the slot wall of the installation through slot, and the triangle section and the strip section are manufactured in an integrated manner. In a specific application, when the optical fiber connector 900 needs to be clamped and fixed, the optical fiber connector 900 is aligned with the fixing hole 130, then the ferrule 930 in the optical fiber connector 900 is driven to be inserted into the fixing post 600, the limiting body 920 is inserted into the limiting cavity, the moving part 620 moves along the direction away from the fixing part 610 under the action of the pushing force exerted by the ferrule 930 in the process of inserting the ferrule 930 into the fixing post 600, and pushes the moving part 700 to move in the third moving gap, and when the ferrule 930 is inserted into the fixing hole 130, the moving part 700 moves in the third moving gap under the action of self-elastic force to realize resetting, and the moving part 620 also resets under the action of the moving part 700. The fixing column 600 not only strengthens the limit function of the clamping and fixing device to the ferrule 930, but also facilitates the insertion of the ferrule 930 into the fixing column 600.

In addition, in order to enable the carrying portion 300 to move in the second groove section along the preset direction, the carrying portion 300, the first limiting portion, the second limiting portion and the third limiting portion are integrally formed and manufactured to form a complete body together, and a moving channel for the first limiting portion, the second limiting portion and the third limiting portion to pass through the fixing post 600 is integrally arranged from left to right along the preset direction.

Referring to fig. 1, as an alternative manner in the embodiment of the present application, the clamping and fixing device further includes a driving part 800, the driving part 800 includes an operating member 810 and a driving screw 820, the driving screw 820 is fixedly installed on a first end of the operating member 810, a threaded hole extending into the installation through slot is provided on the fixing part 100, one end of the driving screw 820, which is far away from the operating member 810, passes through the threaded hole and penetrates into the installation through slot, and can abut against an outer surface of the movement adjusting part 700, which is far away from the moving part 620, and an outer circumferential surface of the driving screw 820 is in threaded connection with a wall of the threaded hole.

In a specific application, when the optical fiber connector 900 needs to be clamped and fixed, the optical fiber connector 900 is aligned with the fixing hole 130, then the ferrule 930 in the optical fiber connector 900 is driven to be inserted into the fixing post 600, the limiting body 920 is inserted into the limiting cavity, after the ferrule 930 is inserted into the fixing post 600, the operating member 810 is driven to rotate around the axis of the driving screw 820, so as to drive the driving screw 820 to move towards the movement adjusting part 700, and the movement adjusting part 700 drives the movement part 620 to move towards the fixing part 610, so that the ferrule 930 is better limited.

Referring to fig. 1 and 6, in the present alternative, the operating member 810 includes a first operating lever 811 and a second operating lever 812, the second operating lever 812 is disposed at one side of the first operating lever 811, a length direction of the first operating lever 811 is parallel to a length direction of the second operating lever 812, a first end of the first operating lever 811 is fixedly connected with a first end of the second operating lever 812, an adjustment gap is disposed between the first operating lever 811 and the second operating lever 812, and a penetration space for the driving screw 820 is disposed between the first operating lever 811 and the second operating lever 812. The operating member 810 further includes a fixing screw 830, the fixing screw 830 passing through the first operating lever 811 from an end surface of the first operating lever 811 remote from the second operating lever 812 and being screwed into the second operating lever 812 such that the driving screw 820 is fixedly installed in the penetration space.

In this alternative, the length of the second lever 812 is greater than the length of the first lever 811. The penetrating space and the fixing screw 830 are provided, which not only facilitates the fixing installation of the driving screw 820 in the penetrating space, but also facilitates the assembly of the operating member 810 and the driving screw 820, thereby improving the assembly efficiency.

Referring to fig. 1, in the present alternative, a receiving space is provided at a corner of the fixing portion 100, and a first end of the operating member 810 is disposed in the receiving space and rotatable about an axis of the driving screw 820 in the receiving space, and an outer surface of the operating member 810 remote from the threaded hole is parallel to an outer surface of the fixing portion 100. The accommodating space is provided to avoid the driving part 800 from being directly exposed outside the fixing part 100, and reduce the volume of the whole clamping and fixing device.

Referring to fig. 1 and 3, in the present alternative, the receiving space is provided at the lower right corner of the fixing part 100; the movement adjusting part 700 has a limit position and an initial position, the second end of the operating element 810 is located at a side of the mounting part 300 away from the fixing part 100 when the movement adjusting part 700 is at the limit position, the length direction of the operating element 810 forms a preset included angle with the length direction of the fixing part 100 on a horizontal plane, and the length direction of the operating element 810 is parallel with the length direction of the fixing part 100 when the movement adjusting part 700 is at the initial position.

In a specific application, after the ferrule 930 is inserted into the fixing post 600, the operating member 810 is driven to rotate in a direction approaching to the carrying portion 300, and along with the rotation of the operating member 810, one end of the driving screw 820 away from the operating member 810 moves toward the movement adjusting portion 700 and drives the movement adjusting portion 700 and the movement portion 620 to move toward the fixing portion 610, and after the movement adjusting portion 700 moves to the limit position, the movement portion 620 cannot move, and at this time, the movement portion 620 and the fixing portion 610 realize the clamping operation on the ferrule 930; when the insert core 930 needs to be pulled out from the fixing post 600, the operating member 810 is driven to rotate in a direction approaching to the fixing portion 100, and when the operating member 810 rotates from the limit position to the initial position, one end of the driving screw 820, which is far away from the operating member 810, is separated from the movement adjusting portion 700, and the movement adjusting portion 700 and the movement portion 620 are reset under the action of self-elasticity and the third movement gap, so that the insert core 930 can be pulled out from the fixing post 600 easily.

Referring to fig. 1, 3 and 6, in the present alternative, a blocking block 840 is disposed on an inner wall of the accommodating space, the blocking block 840 is disposed obliquely, and correspondingly, a blocking chute disposed corresponding to the blocking block 840 is disposed on an outer surface of the operating member 810 near the blocking block 840; with the movement adjustment part 700 in the extreme position, the blocking block 840 abuts the blocking chute wall near the outer surface of the operating member 810. By the design, the operating member 810 can only rotate within a certain angle range, so that the condition that the operating member 810 continuously rotates around the axis of the driving screw 820 is avoided, and the integrity of the movement adjusting part 700 and the normal development of the clamping operation are ensured.

In summary, implementing the clamping and fixing device provided in this embodiment has at least the following beneficial technical effects: when the optical fiber connector 900 is required to be clamped and fixed and the optical fiber connector 900 is detected, the extending directions of the fixing hole 130 and the limiting cavity are parallel to the horizontal direction, then the optical fiber connector 900 is aligned with the fixing hole 130, the inserting core 930 in the optical fiber connector 900 is driven to be inserted into the fixing hole 130, the limiting body 920 is inserted into the limiting cavity, in the process, the outer peripheral surface of the inserting core 930 is attached to the inner hole wall of the fixing hole 130, and the outer peripheral surface of the limiting body 920 is attached to the inner hole wall of the limiting cavity; after the above steps are completed, the optical fiber connector 900 is firmly clamped and fixed on the clamping and fixing device, so that the optical fiber connector 900 can be detected in all directions. The limiting part 200 and the limiting cavity strengthen the limiting effect on the optical fiber connector 900, reduce the possibility of shaking the optical fiber connector 900 on the clamping and fixing device, and further properly improve the detection efficiency.

The foregoing description of the preferred embodiments of the application is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the application.

Claims (10)

1. The clamping and fixing device is characterized in that the clamping and fixing device is used for clamping and fixing an optical fiber connector (900), the optical fiber connector (900) comprises a connector body (910), a limiting body (920) and a ferrule (930), the ferrule (930) is arranged on the connector body (910), and the limiting body (920) is arranged on the connector body (910) and sleeved on the periphery of the ferrule (930); the clamping and fixing device comprises a fixing part (100) and a limiting part (200), wherein a fixing hole (130) is formed in the fixing part (100), the limiting part (200) is arranged on one side of the fixing part (100), and a limiting cavity is formed in the limiting part (200); the hole wall of the fixing hole (130) is used for clamping the ferrule (930), and the cavity wall of the limiting cavity is used for clamping the limiting body (920).

2. The clamping and fixing device according to claim 1, wherein the number of the limiting parts (200) is plural, the number of the limiting parts (200) is at least two, the limiting part (200) of a first specification is a first limiting part, the limiting part (200) of a second specification is a second limiting part, and the shape of the limiting cavity in the first limiting part is different from the shape of the limiting cavity in the second limiting part;

The clamping and fixing device further comprises carrying portions (300), wherein the limiting portions (200) are arranged on the carrying portions (300) at intervals along the preset direction, and the carrying portions (300) can be arranged on the fixing portions (100) in a sliding mode along the preset direction, so that the limiting portions (200) can be arranged corresponding to the fixing holes (130).

3. The clamping and fixing device according to claim 2, wherein the fixing portion (100) is provided with a step chute (110), and an extending direction of the step chute (110) is parallel to the preset direction;

the step sliding groove (110) comprises a first groove section and a second groove section, the first groove section extends from the outer surface of the fixed part (100) to the inside of the fixed part (100), the second groove section is arranged on one side of the first groove section and is communicated with the first groove section, and the groove top of the second groove section at least partially covers the projection of the first groove section onto the groove top of the second groove section; the carrying part (300) is slidably arranged in the second groove section along the preset direction, and the limiting part (200) is at least partially positioned in the first groove section.

4. A clamping and fixing device according to claim 3, wherein a plurality of positioning through grooves (120) are arranged on the groove wall of the second groove section at intervals along the preset direction, and the number of the positioning through grooves (120) is the same as the number of the limiting parts (200);

The clamping and fixing device further comprises a positioning part (400), wherein a first end of the positioning part (400) is fixedly connected with the carrying part (300), a second end of the positioning part (400) is arranged on one side of the carrying part (300), and the second end of the positioning part (400) can move along a direction approaching to or away from the positioning through groove (120) and can be inserted into any one positioning through groove (120) of a plurality of positioning through grooves (120); when the second end of the positioning part (400) is inserted into any one positioning through groove (120) of the positioning through grooves (120), the limiting part (200) corresponding to the positioning through groove (120) in the limiting parts (200) is arranged corresponding to the fixing hole (130).

5. The clamping and fixing device according to claim 4, wherein an installation groove is formed in the outer surface of the carrying portion (300), a first end of the positioning portion (400) is fixedly connected with a groove wall of the installation groove, and a first moving gap for moving the positioning portion (400) in a direction approaching or separating from the positioning through groove (120) is formed between the outer surface of the positioning portion (400) close to the groove wall of the installation groove and the groove wall of the installation groove.

6. The clamping and fixing device according to claim 2, wherein the carrying part (300) is provided with a plurality of accommodating through grooves which are distributed at intervals, the number of the accommodating through grooves is the same as that of the limiting parts (200), and the limiting parts (200) are correspondingly arranged in the accommodating through grooves one by one;

The limiting part (200) comprises a limiting part (210), the limiting cavity is arranged on the limiting part (210), the limiting part (210) comprises a fixing section (211) and an adjusting section (212), the fixing section (211) is fixedly connected with the groove wall of the containing through groove, and the adjusting section (212) is arranged on one side of the fixing section (211) and can move along the direction close to or far from the fixing section (211);

the limiting part (200) further comprises a connecting piece (220), the connecting piece (220) is located on one side of the limiting cavity, a first end of the connecting piece (220) is fixedly connected with the carrying part (300), a second end of the connecting piece (220) is fixedly connected with the adjusting section (212), a second moving gap for the connecting piece (220) to drive the adjusting section (212) to move along a direction close to or far away from the fixing section (211) is formed between the outer surface of the groove wall of the containing through groove and the groove wall of the containing through groove.

7. The clamping and fixing device according to claim 6, wherein the optical fiber connector (900) has three specifications, a first specification is a first optical fiber connector, a second specification is a second optical fiber connector, a third specification is a third optical fiber connector, the shape of the limit body (920) in the first optical fiber connector is different from the shape of the limit body (920) in the second optical fiber connector, the limit body (920) in the second optical fiber connector is the same as the limit body (920) in the third optical fiber connector, limit keys (940) are fixedly connected to one sides of the limit bodies (920) in the second optical fiber connector and the third optical fiber connector, and the width of the limit keys (940) in the second optical fiber connector is larger than the width of the limit keys (940) in the third optical fiber connector;

The three limiting parts (200) are respectively the first limiting part, the second limiting part and the third limiting part, the first limiting part is arranged corresponding to the first optical fiber connector, the second limiting part is arranged corresponding to the second optical fiber connector, the third limiting part is arranged corresponding to the third optical fiber connector, and the limiting cavity in the third limiting part is the same as the limiting cavity in the second limiting part; limiting grooves (213) are formed in the limiting pieces (210) in the second limiting portion and the third limiting portion, and the limiting grooves (213) are located between the fixing section (211) and the adjusting section (212); under the condition that the clamping and fixing device clamps and fixes the second optical fiber connector, the limit key (940) in the second optical fiber connector is penetrated into the limit groove (213) in the second limit part and is abutted against two opposite groove walls in the limit groove (213) in the second limit part, and under the condition that the clamping and fixing device clamps and fixes the third optical fiber connector, the limit key (940) in the third optical fiber connector is penetrated into the limit groove (213) in the third limit part and is abutted against two opposite groove walls in the limit groove (213) in the third limit part.

8. The clamping and fixing device according to claim 2, further comprising a fixing post (600), wherein the fixing post (600) is disposed on an outer side surface of the fixing portion (100) close to the mounting portion (300) and coaxially disposed with the fixing hole (130), and an inner diameter of the fixing post (600) is the same as a hole diameter of the fixing hole (130);

the fixing column (600) comprises a fixing part (610) and a moving part (620), wherein the fixing part (610) is fixedly connected with the fixing part (100), and the moving part (620) is arranged on one side of the fixing part (610) and can move on the fixing part (100) along the direction approaching or separating from the fixing part (610);

the clamping and fixing device is characterized in that an installation through groove is formed in the fixing portion (100), the clamping and fixing device further comprises a movement adjusting portion (700), the movement adjusting portion (700) is arranged in the installation through groove, a first end of the movement adjusting portion (700) is fixedly connected with the movement portion (620), a second end of the movement adjusting portion is fixedly connected with a groove wall of the installation through groove, a third movement gap for enabling the movement adjusting portion (700) to drive the movement portion (620) to move along a direction close to or far away from the fixing portion (610) is formed between the outer surface of the groove wall of the installation through groove and the groove wall of the installation through groove.

9. The clamping and fixing device according to claim 8, further comprising a driving part (800), wherein the driving part (800) comprises an operation member (810) and a driving screw (820), the driving screw (820) is fixedly mounted on a first end of the operation member (810), a threaded hole extending into the mounting through groove is formed in the fixing part (100), one end of the driving screw (820) away from the operation member (810) penetrates through the threaded hole and penetrates into the mounting through groove, and can abut against an outer surface of the movement adjusting part (700) away from the movement part (620), and the outer circumferential surface of the driving screw (820) is in threaded connection with the hole wall of the threaded hole;

the operation piece (810) comprises a first operation rod (811) and a second operation rod (812), the second operation rod (812) is arranged on one side of the first operation rod (811), the length direction of the first operation rod (811) is parallel to the length direction of the second operation rod (812), the first end of the first operation rod (811) is fixedly connected with the first end of the second operation rod (812), an adjusting gap is arranged between the first operation rod (811) and the second operation rod (812), and a penetrating space for the driving screw (820) to penetrate is arranged between the first operation rod (811) and the second operation rod (812); the operating member (810) further comprises a fixing screw (830), the fixing screw (830) penetrates the first operating rod (811) from the end surface of the first operating rod (811) far away from the second operating rod (812) and is screwed into the second operating rod (812) so that the driving screw (820) is fixedly installed in the penetrating space;

The corner of fixed part (100) is provided with accommodation space, the first end setting of operating part (810) is in accommodation space is interior, and can in accommodation space is interior around the axis of drive screw (820) rotates, keep away from in operating part (810) the surface of screw hole with the surface of fixed part (100) looks parallel and level.

10. The clamping fixture of any one of claims 2 to 9, further comprising a moving handle (500), the moving handle (500) being disposed on a side of the mounting portion (300) remote from the fixing portion (100) and being fixedly connected to the mounting portion (300).