CN220031200U - Clamping assembly and 3D printer - Google Patents

Abstract

The utility model provides a clamping assembly and a 3D printer. The clamping assembly comprises a claw, a clamping piece and a fixing piece. Wherein, be equipped with the fixed orifices in the mounting, the buckle spare includes the first card solid hole and the second card solid hole of mutual intercommunication, and the jack catch includes two at least elasticity clamping jaw. When the clamping device is used, the elastic clamping jaw is accommodated in the fixing hole, and the clamping piece is sleeved on the elastic clamping jaw. When the part is clamped, the clamping piece is moved to the first clamping hole to clamp the elastic clamping jaw, the clamping assembly is in a locking state, and the part to be clamped is fixed; when the clamped part is required to be taken out, the clamping piece is moved to the second clamping hole to release the elastic clamping jaw, the clamping assembly is loosened, and the clamped part is released. Therefore, the clamping assembly can be used for easily locking or releasing the locking or releasing of some parts, so that convenience is greatly improved, small parts are not required to be additionally used for fixing in assembly of the clamping assembly, the clamping assembly is not easy to fall and lose in the use process, maintenance and replacement cost is reduced, and economic benefit is improved.

Description

Clamping assembly and 3D printer

Technical Field

The utility model relates to the field of printer accessories, in particular to a clamping assembly and a 3D printer applying the same.

Background

Often use indisputable fluorine dragon pipe to carry consumptive material in the FDM class 3D printer, along with the increase of live time, often need carry out plug operation to indisputable fluorine dragon pipe to change the consumptive material, change indisputable fluorine dragon pipe itself or maintain the end cap. However, the quick-release mechanism for fixing the teflon tube in the related art is easy to drop after being pulled out, small in parts, easy to cause loss, and high in price, thereby resulting in high maintenance and replacement costs.

Disclosure of Invention

The utility model provides a clamping assembly and a 3D printer, which are used for solving the problems that the clamping assembly is easy to drop after being pulled out, parts are small, loss is easy to occur, and the cost is high due to high price in the related art.

In order to solve the technical problems, according to an aspect of the present utility model, a clamping assembly is provided, which includes a claw, a clip and a fixing member; the fixing piece is provided with a fixing hole; the clamping piece comprises a first clamping hole and a second clamping hole, and the first clamping hole is communicated with the second clamping hole; the claw comprises at least two elastic clamping claws; the elastic clamping jaw is accommodated in the fixing hole, and the clamping buckle piece is sleeved on the elastic clamping jaw and is abutted to one end, far away from the elastic clamping jaw, of the fixing piece; the clamping piece can move and enable the first clamping hole to clamp the elastic clamping jaw, or move to enable the second clamping hole to be matched with the elastic clamping jaw so as to release the elastic clamping jaw.

Specifically, the fixing hole comprises an inclined inner wall section which is inclined radially along a direction away from the clamping piece; each of the resilient jaws includes a wedge-shaped end that abuts the sloped inner wall section; the thickness of the first clamping fixing hole of the clamping piece is larger than that of the second clamping fixing hole; the clamping piece moves along the fixing piece to drive the wedge-shaped tail end to move relatively along the axis of the fixing hole.

Specifically, the fixing hole further comprises a plane section connected with the inclined inner wall section; each elastic clamping jaw comprises a jaw body, and the jaw bodies are abutted with the plane sections; each wedge-shaped tail end is a stop block convexly arranged on the wall surface of the corresponding claw body; each stop block comprises an abutting inclined surface which extends outwards from the wall surface of the corresponding claw body in an inclined mode, and the abutting inclined surfaces can abut against the inclined inner wall and can slide relatively.

Specifically, the fixing hole includes a first sub-fixing hole section and a second sub-fixing hole section of a dodging hole Duan Jidi, wherein the dodging Kong Duanwei is between the first sub-fixing hole section and the second sub-fixing hole section, and the second sub-fixing hole section is arranged with the first sub-fixing hole Duan Tongzhou; the size of the avoidance hole section is larger than that of the wedge-shaped tail end; wherein the plane section is the inner wall of the first sub-fixing hole section; the inclined inner wall section is at least part of the inner wall of the avoidance hole section.

Specifically, the inner wall junction of first card fixed orifices with the second card fixed orifices is protruding to establish and is formed with buckle spacing portion.

Specifically, the first clamping hole and the second clamping hole are circular arc holes or round holes, and the first clamping hole and the second clamping hole are partially crossed.

Specifically, the claw comprises a head part, a shaft sleeve part connected with the head part and a mounting hole, wherein the mounting hole penetrates through the head part and the shaft sleeve part; the shaft sleeve part is provided with a through groove along the axial direction, and the through groove divides the shaft sleeve part into at least two elastic clamping jaws; the fastener is disposed between the head and an end face of the fixture.

Specifically, the claw comprises a shaft sleeve part, wherein the shaft sleeve part is provided with a through groove along the axial direction, and the through groove divides the shaft sleeve part into at least two elastic clamping jaws; the inner diameter of the first clamping fixing hole is equal to or smaller than the outer diameter of the shaft sleeve part; the inner diameter of the second clamping hole is larger than the outer diameter of the shaft sleeve part.

Specifically, the clamping piece is also provided with an operating handle.

In another aspect of the present utility model, a 3D printer is provided, which includes the clamping assembly described above.

The beneficial effects of the utility model are as follows: compared with the clamping assembly in the related art, the clamping assembly provided by the utility model comprises the clamping jaw, the clamping piece and the fixing piece. Wherein, be equipped with the fixed orifices in the mounting, the buckle spare includes the first card solid hole and the second card solid hole of mutual intercommunication, and the jack catch includes two at least elasticity clamping jaw. The elastic clamping jaw is accommodated in the fixing hole, the clamping assembly can be assembled by sleeving the clamping piece on the elastic clamping jaw, the structure is simple, the assembly is convenient, and the small parts for fixing are not required to be additionally arranged. When the clamping assembly is required to be used, the clamping piece is moved to the first clamping hole to clamp the elastic clamping jaw, and at the moment, the clamping assembly is in a locking state, so that the part to be clamped can be fixed; when the clamped part needs to be taken out, the clamping piece is moved to the second clamping hole to release the elastic clamping jaw, and at the moment, the clamping assembly is in a loosening state to release the clamped part. Therefore, the clamping assembly can easily carry out locking or releasing on some parts, and the convenience of use is greatly improved. In addition, when the clamping assembly is used, the elastic clamping jaw is always accommodated in the fixing hole, the clamping piece is also always sleeved on the elastic clamping jaw, and the clamping assembly is not easy to drop and lose in the use process, so that the maintenance and replacement cost is reduced, and the economic benefit is improved.

Drawings

For a clearer description of the technical solutions of the embodiments of the present utility model, the drawings that are needed in the description of the embodiments will be briefly introduced below, it being obvious that the drawings in the description below are only some embodiments of the present utility model, and that other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art, wherein:

FIG. 1 is an exploded view of an embodiment of a clamping assembly according to the present utility model, the clamping assembly including a claw, a fastener, and a fixing member;

FIG. 2 is a schematic view of the clamp assembly of FIG. 1 in an operative configuration;

FIG. 3 is a schematic view of the clamp assembly of FIG. 1 in a non-operative configuration;

FIG. 4 is an exploded view of another embodiment of a clamping assembly according to the present utility model, the clamping assembly including a claw, a fastener, and a fixing member;

FIG. 5 is a schematic illustration of the clamping assembly of FIG. 1 or FIG. 4 applied to a printhead of a 3D printer;

FIG. 6 is a schematic illustration of the clamping assembly of FIG. 1 or FIG. 4 applied to an extruder of a 3D printer;

fig. 7 is a schematic structural diagram of the clamping assembly of fig. 1 or fig. 4 applied to a breakage detection device of a 3D printer.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the utility model. All other embodiments, which can be made by one of ordinary skill in the art without undue burden from the present disclosure, are intended to be within the scope of the present disclosure.

In describing embodiments of the present utility model, it should be noted that, unless explicitly stated and limited otherwise, the terms "coupled," "coupled," and "connected" should be construed broadly, and may be either a fixed connection, a removable connection, or an integral connection, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium. The specific meaning of the above terms in embodiments of the present utility model will be understood in detail by those of ordinary skill in the art.

In embodiments of the utility model, unless expressly specified and limited otherwise, a first feature "up" or "down" on a second feature may be that the first and second features are in direct contact, or that the first and second features are in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

Referring to fig. 1-3, fig. 1 is an exploded schematic view of a clamping assembly according to the present utility model, wherein the clamping assembly includes a claw, a fastening member and a fixing member; FIG. 2 is a schematic view of the clamp assembly of FIG. 1 in an operative configuration; fig. 3 is a schematic view of the clamp assembly of fig. 1 in a non-operative state. In one aspect of the utility model, a clamping assembly 100 is provided. In one embodiment, the clamping assembly 100 includes a jaw 1, a catch member 2 and a fixing member 3. The clamping jaw 1 comprises at least two elastic clamping jaws 11, and the fixing piece 3 is provided with a fixing hole 31. The elastic clamping jaw 11 is accommodated in the fixing hole 31, and the clamping piece 2 is sleeved on the elastic clamping jaw 11. Further, the clip 2 includes a first clip hole 21 and a second clip hole 22, and the first clip hole 21 and the second clip hole 22 communicate with each other. The clip 2 can be moved in a direction perpendicular to the center line of the fixing hole 31, that is, in the X direction shown in fig. 1. The clamping piece 2 can move to enable the first clamping hole 21 to clamp the elastic clamping jaw 11, or move to enable the second clamping hole 22 to be matched with the elastic clamping jaw 11 to release the elastic clamping jaw 11.

The clamping jaw 1 comprises a head 12, a shaft sleeve part 13 connected with the head 12 and a mounting hole 14, wherein the mounting hole 14 penetrates through the head 12 and the shaft sleeve part 13. The shaft sleeve portion 13 is provided with the through groove 131 along the axis direction, the shaft sleeve portion 13 is divided into at least two elastic clamping jaws 11 by the through groove 131, and the at least two elastic clamping jaws 11 can generate locking pressure in different directions, so that locking can be more stable. And, the fastener 2 is arranged between the end face of the head 12 and the end face of the fixing piece 3, when the fastener 2 makes the elastic clamping jaw 11 separate from the locking and move towards the direction far away from the fixing piece 3, the head 12 can block the fastener 2, so that the fastener is prevented from falling down to be lost.

Specifically, it should be noted that, when the clamping assembly 100 of the present utility model is not in use, the second clamping hole 22 is sleeved on the elastic clamping jaw 11, and at this time, the clamping assembly 100 is in a released state, that is, the elastic clamping jaw 11 is in an outwardly opened state. When it is necessary to clamp a member such as the teflon tube 4 using the clamp assembly 100, the teflon tube 4 passes through the head 12, the boss 13, and the fixing hole 31 in order through the mounting hole 14. At this time, the clamping member 2 is moved to the first clamping hole 21 to clamp the elastic clamping jaw 11, so that the clamping assembly 100 is in a locked state, that is, the elastic clamping jaw 11 contracts to clamp the teflon tube 4. At this time, the clamping assembly is in an operating state, that is, the elastic clamping jaws 11 of the clamping assembly 100 approach the parts to be clamped and tightly lock the parts to be clamped, so as to prevent the parts from loosening or even falling off. When it is necessary to take out the part gripped by the gripping assembly 100, the clip member 2 is moved to the second fastening hole 22 to cooperate with the elastic jaw 11 to release the elastic jaw 11. At this time, the clamping assembly 100 is in a non-working state, that is, the elastic clamping jaws 11 of the clamping assembly 100 are in a loose state after being far away from the clamped component, and are separated from the clamped component. Therefore, the elastic clamping jaw 11 of the clamping assembly 100 is accommodated in the fixing hole 31, the clamping piece 2 is sleeved on the elastic clamping jaw 11, and the clamping assembly 100 can be assembled. When the clamping assembly 100 needs to be used, the movable clamping piece 2 can easily lock and fix or release the clamping part, so that the operation is simple, and the use convenience is greatly improved. In addition, when the clamping assembly 100 is used, the elastic clamping jaw 11 is always accommodated in the fixing hole 31, the clamping piece 2 is also always sleeved on the elastic clamping jaw 11, and the clamping assembly is not easy to drop and lose in the use process, so that the maintenance and replacement cost is reduced, and the economic benefit is improved.

Specifically, referring to fig. 2 and 3, the fixing hole 31 includes an inclined inner wall section 311, and the inclined inner wall section 311 is inclined radially in a direction away from the fastening member 2, that is, an inner diameter of the inclined inner wall section 311 is gradually increased in a direction away from the fastening member 2. Also, in order to enable the elastic clamping jaws 11 to be better fitted with the inclined inner wall sections 311 of the fixing hole 31, each elastic clamping jaw 11 is provided with a wedge-shaped tip 111. The thickness of the first clamping hole 21 of the clamping piece 2 is larger than that of the second clamping hole 22, so that when the clamping piece 2 moves along the X direction, the clamping jaw 1 and the fixing piece 3 can move relatively due to the different thicknesses of the first clamping hole 21 and the second clamping hole 22, the wedge-shaped tail end 111 abuts against the inclined inner wall section 311 to clamp the teflon 4, or the wedge-shaped tail end 111 and the inclined inner wall section 311 are staggered to be separated from abutting, so that the elastic clamping jaw 11 can be opened to release the teflon 4.

Further, for convenience of operation, the fastener 2 is further provided with an operation handle 24. The operator moves the fastening member 2 to the first fastening hole 21 or the second fastening hole 22 to be sleeved on the elastic clamping jaw 11 through the operation handle 24. In some other embodiments, a concave-convex pattern or a friction surface may be provided on the operating handle 24 to increase the friction between the operating handle 24 and the hand of the operator, so as to prevent the slipping phenomenon during the operation.

Specifically, since the inclined inner wall section 311 is inclined radially in a direction away from the clip 2, that is, an inner diameter of an end of the inclined inner wall section 311 away from the clip 2 is larger than an inner diameter of an end of the inclined inner wall section 311 close to the clip 2. Therefore, when the teflon 4 needs to be fixed in the fixing member 3 by the claw 1 and the fastening member 2, the claw 1 passes through the fastening member 2 and is inserted into the fixing hole 31, and the wedge-shaped tip 111 moves along the axis of the fixing hole 31 in a direction away from the fastening member 2 until the wedge-shaped tip 111 completely enters into the fixing hole 31. At this time, the operator presses the operation lever 24 to move the clip member 2 from the second clip hole 22 to the first clip hole 21, and fix it to the fixing hole 31. Because the thickness of the first clamping hole 21 is greater than that of the second clamping hole 22, the distance between the head 12 and the fixing piece 3 is increased, so that the teflon 4 is stressed by a force away from the fixing piece 3 along the axis of the fixing hole 31, the peripheral wedge-shaped tail ends 111 are abutted against the inclined inner wall section 311, a reaction force for compressing the teflon 4 is generated, and the teflon 4 is clamped. When the teflon 4 needs to be separated from the fixing member 3, the operator lifts the operating handle 24, moves the clamping member 2 from the first clamping hole 21 to the second clamping hole 22, reduces the distance between the head 12 and the fixing member 3, moves the wedge-shaped tail end 111 along the axis of the fixing hole 31 towards the direction approaching the clamping member 2 to separate from the abutment with the inclined inner wall section 311, and releases the wedge-shaped tail end 111 at the end with the large inner diameter of the inclined inner wall section 311, at the moment, the teflon 4 is not clamped any more, and the elastic clamping jaw 11 opens to release the teflon 4.

It will be appreciated that the relative movement of the jaw 1 and the fixing element 3 may be any movement of the jaw 1 and the fixing element 3. Of course, it is also possible that the jaw 1 and the fixing element 3 are moved simultaneously with respect to each other.

More specifically, the fixing hole 31 further includes a flat section 312 connected to the inclined inner wall section 311, and the flat section 312 is connected to the inclined inner wall section 311 and located at an end of the inclined inner wall section 311 near the clip member 2. And, each elastic clamping jaw 11 comprises a jaw body 112, and the jaw body 112 is abutted with the plane section 312. Each wedge-shaped end 111 is a stop 113 protruding from the wall surface of the corresponding claw 112, that is, the wedge-shaped end 111 is a stop 113 protruding from the wall surface of the claw 112 near the inner wall of the fixing hole 31. Each stopper 113 includes an abutment inclined surface 1131 extending obliquely outward from the wall surface of the corresponding claw 112, and the abutment inclined surface 1131 can abut against the inner wall of the inclined inner wall section 311, so that when the abutment inclined surface 1131 slides along the inclined inner wall section 311, the abutment force between the abutment inclined surface 1131 and the inclined inner wall section 311 increases to cause the elastic clamping jaw 11 to shrink and clamp, and pressure for approaching the teflon 4 is generated, thereby locking the teflon 4; when the pushing force between the pushing inclined surface 1131 and the inclined inner wall section 311 is reduced, the elastic restoring force of the elastic clamping jaw 11 further causes the elastic clamping jaw 11 to open outwards and away from the teflon 4, so as to release the teflon 4.

Further, the fixing hole 31 includes a first sub-fixing hole section 313, a avoiding hole section 314 and a second sub-fixing hole section 315, which are connected to each other, the avoiding hole section 314 is located between the first sub-fixing hole section 313 and the second sub-fixing hole section 315, and the second sub-fixing hole section 315 is coaxially arranged with the first sub-fixing hole 313. The size of the relief bore section 314 is greater than the size of the wedge-shaped tip 111. The plane section 312 is an inner wall of the first sub-fixing hole section 313, and the inclined inner wall section 311 is at least a part of an inner wall of the avoiding hole section 314, that is, along a direction away from the fastening member 2, the inner walls of the plane section 312 and the inclined inner wall section 311 are sequentially connected to form the inner wall of the first sub-fixing hole section 313.

It will be appreciated that when the second fastening hole 22 is sleeved on the elastic clamping jaw 11, the elastic clamping jaw 11 is separated from the teflon tube 4 to be locked and released, at this time, the abutment inclined surface 1131 of the elastic clamping jaw 11 is separated from the inclined inner wall section 311 to abut, the wedge-shaped tail end 111 moves to the avoidance hole section 314, and the size of the avoidance hole section 314 is larger than that of the wedge-shaped tail end, so that the elastic clamping jaw 11 can be completely loosened in the avoidance hole section 314, and the problem that the elastic clamping jaw 11 cannot be completely loosened to cause the clamping of the teflon tube 4 during the process of taking out or installing the teflon tube 4 is avoided when the clamping assembly 100 is in the release state. In addition, the second sub-fixing hole section 315 can also play a role of auxiliary fixing when the teflon tube 4 passes through the fixing hole 31.

In order to avoid the elastic clamping jaw 11 from automatically resetting from the state of contracting and clamping the teflon tube 4 to the state of being outwards opened, specifically, the joint of the inner walls of the first clamping hole 21 and the second clamping hole 22 is convexly provided with a clamping limit part 23. Like this, when first card admitting hole 21 cover is on elasticity clamping jaw 11, buckle limit portion 23 can play spacing effect to elasticity clamping jaw 11, avoids elasticity clamping jaw 11 to remove at will and leads to opening and lead to unable lock indisputable fluorine dragon pipe 4.

Preferably, in order to facilitate processing and ensure that the fastening member 2 can smoothly move to the first fastening hole 21 or the second fastening hole 22 to be sleeved on the elastic clamping jaw 11, the first fastening hole 21 and the second fastening hole 22 are circular arc holes or circular holes, and the first fastening hole 21 and the second fastening hole 22 are partially crossed. That is, the arc of the inner wall of the first fastening hole 21 and the arc of the inner wall of the second fastening hole 22 intersect to form the fastening stopper 23.

More preferably, the first fastening holes 21 and the second fastening holes 22 are circular holes.

In addition, in another embodiment, the clamping assembly 100 of the present utility model may be implemented without the relative movement of the wedge-shaped end 111 and the inclined inner wall section 311 due to the different thicknesses of the first and second fastening holes 21 and 22 of the fastening member 2. But is directly realized by setting the aperture sizes of the first and second fastening holes 21 and 22.

Specifically, in this embodiment, the inner diameter of the first click hole 21a of the clip assembly 100a is equal to or smaller than the outer diameter of the boss 13 a; the second snap hole 22a has an inner diameter larger than an outer diameter of the boss portion 13 a. Therefore, when the fastener 2a moves to the first fastening hole 21a to be sleeved on the elastic clamping jaw 11a, the inner wall of the first fastening hole 21a generates pressure towards the axle center for the axle sleeve part 13a so as to compress the elastic clamping jaw 11a to tightly lock the teflon tube 4a; when the clasp 2a moves to the second snap hole 22a over the resilient jaw 11a, the second snap hole 22a does not compress the boss 13a so that the resilient jaw 11a can be fully released to release the teflon tube 4a. This arrangement also makes it possible to operate conveniently and effectively lock and release the teflon tube 4a.

Also, in this embodiment, the first and second fastening holes 21a and 22a are circular arc-shaped holes or round holes, and the first and second fastening holes 21a and 22a have a partial intersection. For convenience of operation, the fastener 2a is further provided with an operation handle 24a.

In another aspect of the present utility model, a 3D printer is provided, which includes the clamping assembly 100 or the clamping assembly 100a described above. In some embodiments, the fixing member 3 may be disposed on the housing of the 3D printer, so that the structure of the clamping assembly 100 is further reduced, and the structure of the clamping assembly 100 or the clamping assembly 100a, its implementation, etc. are described in detail above, and therefore, no further description is given.

The consumable materials required for printing by the 3D printer are transported through the teflon 4, so the clamping assembly 100 or the clamping assembly 100a is required to be arranged at a plurality of mechanisms of the 3D printer, so that the teflon 4 is clamped. Referring to fig. 4-6, fig. 5 is a schematic structural diagram of the clamping assembly of fig. 1 or 4 applied to a printhead of a 3D printer; FIG. 6 is a schematic illustration of the clamping assembly of FIG. 1 or FIG. 4 applied to an extruder of a 3D printer;

fig. 7 is a schematic structural diagram of the clamping assembly of fig. 1 or fig. 4 applied to a breakage detection device of a 3D printer. The 3D printer includes at least any one of a print head 101, an extruder 102, and a breakage detection device 103. And the gripping assembly 100 or the gripping assembly 100a is mounted on at least any one of the printhead 101, the extruder 102, and the breakage detection device 103.

In the description of the present utility model, a description of the terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, mechanism, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present utility model. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, mechanisms, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.

The foregoing is only the embodiments of the present utility model, and therefore, the patent scope of the utility model is not limited thereto, and all equivalent structures or equivalent processes using the descriptions of the present utility model and the accompanying drawings, or direct or indirect application in other related technical fields, are included in the scope of the utility model.

Claims (10)

1. The clamping assembly is characterized by comprising a claw, a clamping piece and a fixing piece;

the fixing piece is provided with a fixing hole;

the clamping piece comprises a first clamping hole and a second clamping hole, and the first clamping hole is communicated with the second clamping hole;

the claw comprises at least two elastic clamping claws;

the elastic clamping jaw is accommodated in the fixing hole, and the clamping buckle piece is sleeved on the elastic clamping jaw and is abutted to one end, far away from the elastic clamping jaw, of the fixing piece; the clamping piece can move and enable the first clamping hole to clamp the elastic clamping jaw, or move to enable the second clamping hole to be matched with the elastic clamping jaw so as to release the elastic clamping jaw.

2. The clamping assembly of claim 1, wherein the securing aperture includes an inclined inner wall section that is inclined radially in a direction away from the catch;

each of the resilient jaws includes a wedge-shaped end that abuts the sloped inner wall section;

the thickness of the first clamping hole of the clamping piece is larger than that of the second clamping hole;

the clamping piece moves along the fixing piece to drive the wedge-shaped tail end to move relatively along the axis of the fixing hole.

3. The clamp assembly of claim 2, wherein the securing bore further comprises a planar section connected to the sloped inner wall section;

each elastic clamping jaw comprises a jaw body, and the jaw bodies are abutted with the plane sections;

each wedge-shaped tail end is a stop block convexly arranged on the wall surface of the corresponding claw body;

each stop block comprises an abutting inclined surface which extends outwards from the wall surface of the corresponding claw body in an inclined mode, and the abutting inclined surface abuts against the inclined inner wall section and can slide relatively.

4. A clamping assembly according to claim 3, wherein the securing aperture comprises a first sub-securing aperture section, a relief aperture Duan Jidi sub-securing aperture section, interconnected, the relief Kong Duanwei being disposed between the first sub-securing aperture section and the second sub-securing aperture section, the second sub-securing aperture section being disposed with the first sub-securing aperture Duan Tongzhou;

the size of the avoidance hole section is larger than that of the wedge-shaped tail end;

wherein the plane section is the inner wall of the first sub-fixing hole section; the inclined inner wall section is at least part of the inner wall of the avoidance hole section.

5. The clamping assembly of claim 1, wherein,

the inner wall connection part of the first clamping hole and the second clamping hole is convexly provided with a clamping limit part.

6. The clamp assembly of claim 5, wherein the first and second snap holes are circular arc shaped holes or round holes, and the first and second snap holes are partially intersecting.

7. The clamping assembly of claim 1, wherein the pawl includes a head portion, a boss portion connected to the head portion, and a mounting hole extending through the head portion and the boss portion;

the shaft sleeve part is provided with a through groove along the axial direction, and the through groove divides the shaft sleeve part into at least two elastic clamping jaws;

the fastener is disposed between the head and an end face of the fixture.

8. The clamping assembly of claim 1, wherein the jaws comprise a boss provided with a through slot along an axial direction, the through slot dividing the boss into at least two of the resilient jaws;

the inner diameter of the first clamping hole is equal to or smaller than the outer diameter of the shaft sleeve part;

the inner diameter of the second clamping hole is larger than the outer diameter of the shaft sleeve part.

9. The clamping assembly of claim 1, wherein the clip member is further provided with a handle.

10. A 3D printer comprising a clamping assembly according to any one of claims 1 to 9.