Micro-filament stretching and centering device
By designing a microfilament stretching and centering device, and utilizing the clamping mechanism of the positioning recess and the cooperating protrusion, as well as the buffer adjustment component, the problem of tilting or shifting of the microfilament during the stretching process was solved, thereby improving the testing accuracy.
Patent Information
- Application Number
- CN202423091272.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-13
- Publication Date
- 2026-01-13
- Estimated Expiration
- 2034-12-13
AI Technical Summary
In existing microfilament tensile testing, the fixtures are difficult to align precisely, causing the filaments to tilt or shift during the stretching process, which affects the accuracy of the test results.
A microfilament stretching and centering device is designed, including a first clamping mechanism and a second clamping mechanism. The clamping components are provided with positioning elements and clamping drive elements. The microfilament is clamped and positioned by positioning recesses and mating protrusions. A buffer component and an adjustment component are provided to ensure the stability of the microfilament in the horizontal direction.
This improves the accuracy of microfilament tensile testing, ensuring that the microfilaments do not shift during clamping and thus guaranteeing the accuracy of test results.
Smart Images
Figure CN223796342U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of positioning fixture technology, and in particular to a microfilament stretching and centering device. Background Technology
[0002] In existing microfilament tensile testing processes, the fixtures primarily function to hold the filaments in place for tensile testing. However, for microfilaments with a diameter of less than 30 μm, due to their high flexibility, existing fixtures often struggle to achieve precise alignment, causing the filaments to tilt or shift during the tensile process, thus affecting the accuracy of the test results.
[0003] Therefore, there is an urgent need to provide a microfilament stretching and centering device to solve the problems existing in the prior art to a certain extent. Utility Model Content
[0004] The purpose of this invention is to provide a microfilament stretching and centering device to solve the problem of inaccurate microfilament centering to a certain extent and improve the testing accuracy.
[0005] This utility model provides a microfilament stretching and centering device, including a first clamping mechanism and a second clamping mechanism; the first clamping mechanism includes a first clamping component, and the second clamping mechanism includes a second clamping component. The first clamping component and the second clamping component are arranged opposite to each other in the vertical direction, and each of the first clamping component and the second clamping component includes a first positioning member, a second positioning member, and a clamping drive member; the first positioning member has a positioning recess, and the second positioning member has a mating protrusion. The clamping drive member can drive the second positioning member to move towards or away from the first positioning member, so that the mating protrusion enters the positioning recess to clamp and position the microfilament.
[0006] The positioning recess has a V-shaped cross-section, and the size of the end face of the mating protrusion that contacts the microfilament is not less than the diameter of the microfilament.
[0007] Specifically, the first clamping assembly and the second clamping assembly further include a first buffer member and a second buffer member, which are located in the V-shaped positioning recess and are correspondingly disposed on two inclined surfaces of the positioning recess.
[0008] The first clamping mechanism further includes a first adjusting component and a second adjusting component. The first adjusting component includes a first driving member and a first movable block, and the second adjusting component includes a second driving member and a second movable block. The first clamping component further includes a connecting block, which is connected to the first movable block. The second movable block is connected to the first movable block. The first driving member can drive the first movable block to move in a first direction, and the second driving member can drive the second movable block to move in a second direction.
[0009] Specifically, the first driving component includes a first translational driving member and a first lead screw, and the second driving component includes a second translational driving member and a second lead screw. The output end of the first translational driving member is connected to the first lead screw to drive the first lead screw to rotate. The first movable block is disposed on the first lead screw and is threadedly engaged with the first lead screw. The output end of the second translational driving member is connected to the second lead screw to drive the second lead screw to rotate. The second movable block is disposed on the lead screw and is threadedly engaged with the second lead screw.
[0010] Furthermore, the first adjustment component further includes a first mounting member, and the second adjustment component further includes a second mounting member. The first translation drive member is disposed on the first mounting member, and the second translation drive member is disposed on the second mounting member. The first mounting member is provided with a first positioning seat at the end of the first lead screw away from the first translation drive member, and the second mounting member is provided with a second positioning seat at the end of the second lead screw away from the second translation drive member. The first lead screw is rotatably connected to the first positioning seat, and the second lead screw is rotatably connected to the second positioning seat.
[0011] Furthermore, a first guide portion is formed on the first mounting member, the first guide portion extending along the second direction, and a second guide portion is formed on the second mounting member, the second guide portion extending along the first direction. The first translation drive member on the first mounting member cooperates with the first guide portion, and the second translation drive member on the second mounting member cooperates with the second guide portion.
[0012] The microfilament stretching and centering device provided by this utility model also includes a detection mechanism, which includes a laser and a projection plate. The laser and the projection plate are arranged opposite to each other, and the light emitted by the laser can irradiate the microfilament, so that the projection plate forms a projection of the microfilament.
[0013] Specifically, the projection plate has multiple parallel reference lines engraved in the vertical direction.
[0014] Furthermore, the detection mechanism also includes a turntable, a first connecting rod, and a second connecting rod. One end of the first connecting rod is connected to the turntable, and the other end is connected to the laser. One end of the second connecting rod is connected to the turntable, and the other end is connected to the projection plate. A through hole is formed in the center of the turntable, through which the microfilament can pass, and the turntable can rotate around the microfilament.
[0015] Compared with existing technologies, the microfilament stretching and centering device provided by this utility model has the following advantages:
[0016] The microfilament stretching and centering device provided by this utility model includes a first clamping mechanism and a second clamping mechanism. The first clamping mechanism includes a first clamping component, and the second clamping mechanism includes a second clamping component. The first clamping component and the second clamping component are arranged opposite to each other in the vertical direction. Both the first clamping component and the second clamping component include a first positioning member, a second positioning member, and a clamping drive member. The first positioning member has a positioning recess, and the second positioning member has a mating protrusion. The clamping drive member can drive the second positioning member to move towards or away from the first positioning member, so that the mating protrusion enters the positioning recess to clamp and position the microfilament.
[0017] Analysis shows that by setting a first clamping component and a second clamping component that are vertically opposite to each other, and both the first clamping component and the second clamping component include a first positioning component and a second positioning component, a positioning recess is formed on the first positioning component and a mating protrusion is formed on the second positioning component, so that the positioning recess can accommodate the micro filament that needs to be positioned. Furthermore, since the clamping drive component in this application can drive the second positioning component to move towards or away from the first positioning component, when the micro filament enters the positioning recess, the second positioning component can be controlled to move towards the first positioning component, so that the mating protrusion can enter the positioning recess and achieve clamping of the micro filament.
[0018] Understandably, because the mating protrusion clamps and limits the microfilament after entering the positioning recess, the microfilament will not move horizontally. Correspondingly, since the first and second clamping components are vertically opposite each other—that is, the positions of the first and second positioning elements correspond one-to-one and do not move—the clamped microfilament between the first and second clamping components can, to a certain extent, remain perpendicular to the horizontal plane. Furthermore, during testing, the combined action of the mating recess and the mating protrusion makes horizontal movement difficult, thus achieving precise positioning of the microfilament and improving the accuracy of the testing process. Attached Figure Description
[0019] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.
[0020] Figure 1 A schematic diagram of the overall structure of the microfilament stretching and centering device provided in an embodiment of this utility model;
[0021] Figure 2 A schematic diagram of the structure of the first positioning member and the second positioning member clamping the microfilament in the microfilament stretching and centering device provided in this embodiment of the utility model;
[0022] Figure 3 A schematic diagram of the structure of the laser and projection plate on the turntable in the microfilament stretching and centering device provided in this embodiment of the utility model;
[0023] Figure 4 A diagram showing the fit between the first mounting component and the first translational drive component in the microfilament stretching and centering device provided in this embodiment of the utility model.
[0024] In the figure: 1-First translation drive component; 2-First lead screw; 3-First movable block; 4-Second movable block; 5-First clamping assembly; 501-Connecting block; 6-Second clamping assembly; 7-Laser; 8-Projection plate; 9-First positioning component; 901-Positioning recess; 10-Second positioning component; 1001-Matching protrusion; 11-Micro filament; 12-First buffer component; 13-Second buffer component; 14-Clamping drive component; 15-Second translation drive component; 16-Second lead screw; 17-Turntable; 1701-First connecting rod; 1702-Second connecting rod; 18-First mounting component; 1801-First guide part; 1802-First positioning seat; 1803-Second guide part; 1804-Second positioning seat;
[0025] S1 - First direction; S2 - Second direction. Detailed Implementation
[0026] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely represents selected embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.
[0027] In the description of the embodiments of this application, it should be noted that the terms "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the utility model product is in use. They are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the utility model. In addition, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.
[0028] Furthermore, terms such as "horizontal" and "vertical" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.
[0029] In the description of the embodiments of this application, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "connect" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0030] As used herein, the term “and / or” includes any one of the relevant items listed and any combination of any two or more items.
[0031] For ease of description, spatial relation terms such as “above,” “upper,” “below,” and “lower” may be used herein to describe the relationship between one element and another as shown in the accompanying drawings. Such spatial relation terms are intended to include not only the orientation depicted in the drawings but also the different orientations of the device during use or operation.
[0032] The terminology used herein is for the purpose of describing various examples only and is not intended to limit this disclosure. Unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. The terms “comprising,” “including,” and “having” enumerate the stated features, quantities, operations, components, elements, and / or combinations thereof, but do not exclude the presence or addition of one or more other features, quantities, operations, components, elements, and / or combinations thereof.
[0033] Variations in the shapes shown in the accompanying drawings may occur due to manufacturing techniques and / or tolerances. Therefore, the examples described herein are not limited to the specific shapes shown in the accompanying drawings, but include changes in shape that may occur during manufacturing.
[0034] The features of the examples described herein can be combined in various ways that will be apparent upon understanding the disclosure of this application. Furthermore, although the examples described herein have various constructions, other constructions are possible, as will be apparent upon understanding the disclosure of this application. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis that they can be implemented by those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed in this application.
[0035] like Figure 1 As shown, this utility model provides a microfilament stretching and centering device, including a first clamping mechanism and a second clamping mechanism; the first clamping mechanism includes a first clamping component 5, and the second clamping mechanism includes a second clamping component 6. The first clamping component 5 and the second clamping component 6 are arranged opposite each other in the vertical direction, and both the first clamping component 5 and the second clamping component 6 include a first positioning member 9, a second positioning member 10, and a clamping drive member 14; the first positioning member 9 has a positioning recess 901, and the second positioning member 10 has a mating protrusion 1001. The clamping drive member 14 can drive the second positioning member 10 to move towards or away from the first positioning member 9, so that the mating protrusion 1001 enters the positioning recess 901 to clamp and position the microfilament 11.
[0036] Compared with existing technologies, the microfilament stretching and centering device provided by this utility model has the following advantages:
[0037] The microfilament stretching and centering device provided by this utility model comprises a first clamping component 5 and a second clamping component 6 arranged vertically opposite to each other. Both the first clamping component 5 and the second clamping component 6 include a first positioning member 9 and a second positioning member 10. The first positioning member 9 has a positioning recess 901, and the second positioning member 10 has a mating protrusion 1001. The positioning recess 901 can accommodate the microfilament 11 that needs to be positioned. Furthermore, since the clamping drive member 14 in this application can drive the second positioning member 10 to move towards or away from the first positioning member 9, when the microfilament 11 enters the positioning recess 901, the second positioning member 10 can be controlled to move towards the first positioning member 9, thereby enabling the mating protrusion 1001 to enter the positioning recess 901 and achieve clamping of the microfilament 11.
[0038] Understandably, since the mating protrusion 1001 can clamp and limit the microfilament 11 after entering the positioning recess 901, the microfilament 11 will not move horizontally. Correspondingly, since the first clamping assembly 5 and the second clamping assembly 6 are arranged opposite each other in the vertical direction, that is, the positions of the first positioning member 9 and the second positioning member 10 correspond one-to-one and do not move, the portion of the clamped microfilament 11 between the first clamping assembly 5 and the second clamping assembly 6 can be guaranteed to be perpendicular to the horizontal plane to a certain extent. Furthermore, during the test, it is difficult for horizontal movement to occur under the combined action of the mating recess and the mating protrusion 1001, thereby achieving precise positioning of the microfilament 11 and improving the accuracy of the test process.
[0039] It should be noted that the clamping drive component 14 in this application can adopt a telescopic structure such as a cylinder or hydraulic cylinder, that is, the telescopic end of the piston is connected to the second positioning component 10, and the cylinder body is connected to the first positioning component 9, thereby realizing the movement of the second positioning component 10 towards or away from the first positioning component 9. The clamping drive component 14 can also adopt a motor-driven structure such as a lead screw to realize the movement of both, which will not be described in detail here.
[0040] Preferably, such as Figure 2 As shown, the positioning recess 901 in this application has a V-shaped cross section, and the size of the end face of the mating protrusion 1001 that contacts the microfilament 11 is not less than the diameter of the microfilament 11.
[0041] The V-shaped positioning recess 901 allows the microfilament 11 to enter the positioning recess 901 smoothly and contact the inclined end faces on both sides after the mating protrusion 1001 moves closer to the first positioning member 9. At the same time, the mating protrusion 1001 and the contact end face of the microfilament 11 work together to limit and clamp the microfilament 11.
[0042] Since the size of the end face of the mating protrusion 1001 that contacts the microfilament 11 is not less than the diameter of the microfilament 11, after positioning and clamping, the problem of the microfilament 11 shifting during the testing stage due to insufficient end face size of the mating protrusion 1001 can be avoided.
[0043] Optionally, such as Figure 2 As shown, the first clamping assembly 5 and the second clamping assembly 6 in this application also include a first buffer member 12 and a second buffer member 13. The first buffer member 12 and the second buffer member 13 are located in the V-shaped positioning recess 901 and are correspondingly disposed on the two inclined surfaces of the positioning recess 901.
[0044] In this application, both the first buffer member 12 and the second buffer member 13 can include multiple springs and a contact plate. The springs are located between the contact plate and the inclined surface of the first positioning member 9. When the microfilament 11 enters the positioning recess 901, the first buffer member 12 and the second buffer member 13 can play a certain degree of buffering role, thereby avoiding the problem of damage to the microfilament 11 during the clamping process.
[0045] It should be noted that the inclination angle of the two inclined surfaces in the recess in this application is between 15° and 45°, which can better meet the requirements of the arrangement of the buffer component and the positioning of the microfilament 11.
[0046] Optionally, such as Figure 1 As shown, the first clamping mechanism in this application further includes a first adjustment component and a second adjustment component. The first adjustment component includes a first driving member and a first movable block 3, and the second adjustment component includes a second driving member and a second movable block 4. The first clamping component 5 also includes a connecting block 501, which is connected to the first movable block 3 and the second movable block 4 is connected to the first movable block 3. The first adjustment component can drive the first movable block 3 to move in the first direction S1, and the second adjustment component can drive the second movable block 4 to move in the second direction S2.
[0047] By setting a connecting block 501 between the first positioning block and the first movable block 3, the first clamping component 5 can move with the first adjusting component and the second adjusting component. Due to the size characteristics of the microfilament 11, the extension direction of the microfilament 11 is not consistent with the stretching direction during positioning. However, by setting the first adjusting component and the second adjusting component, the position of the first clamping component 5 can be finely adjusted.
[0048] In this application, both the first direction S1 and the second direction S2 are horizontal directions, and the first direction S1 and the second direction S2 are perpendicular to each other. By causing the first driving component to drive the first movable block 3 to reciprocate in the first direction S1 and the second driving component to drive the second movable block 4 to reciprocate in the second direction S2, the first clamping component 5 can be adjusted in multiple positions on the horizontal plane. Thus, through fine adjustment, the precise alignment between the first clamping component 5 and the second clamping component 6 is achieved, thereby ensuring that the extension direction of the positioned microfilament 11 is consistent with the stretching direction, thus guaranteeing the test accuracy.
[0049] It should be noted that the first driving component and the second driving component in this application can adopt a telescopic structure such as a cylinder or a hydraulic cylinder to drive the first movable block 3 and the second movable block 4.
[0050] Preferably, such as Figure 1 As shown, the first driving component in this application includes a first translational driving member 1 and a first lead screw 2, and the second driving component includes a second translational driving member 15 and a second lead screw 16. The output end of the first translational driving member 1 is connected to the first lead screw 2, driving the first lead screw 2 to rotate. The first movable block 3 is disposed on the first lead screw 2 and threadedly engaged with the first lead screw 2. The output end of the second translational driving member 15 is connected to the second lead screw 16, driving the second lead screw 16 to rotate. The second movable block 4 is disposed on the second lead screw 16 and threadedly engaged with the second lead screw 16. Accordingly, the first translational driving member 1 and the second translational driving member 15 in this application are both motors. When the motors are started, they can drive the first lead screw 2 and the second lead screw 16 to rotate, thereby realizing the movement of the first movable block 3 and the second movable block 4 on the first lead screw 2 and the second lead screw 16.
[0051] Optionally, the first adjustment assembly further includes a first mounting member 18, and the second adjustment assembly further includes a second mounting member. The first translation drive member 1 is disposed on the first mounting member 18, and the second translation drive member 15 is disposed on the second mounting member. The first mounting member 18 is provided with a first positioning seat 1802 at the end of the first lead screw 2 away from the first translation drive member 1, and the second mounting member is provided with a second positioning seat 1804 at the end of the second lead screw 16 away from the second translation drive member 15. The first lead screw 2 is rotatably connected to the first positioning seat 1802, and the second lead screw 16 is rotatably connected to the second positioning seat 1804.
[0052] The first mounting component 18 and the second mounting component can provide a mounting foundation and positioning for the corresponding motors. At the same time, the first mounting component 18 and the second mounting component can provide a mounting foundation for the first positioning seat 1802 corresponding to the other end of the first lead screw 2 and the second positioning seat 1804 corresponding to the other end of the second lead screw 16. Thus, the first positioning seat 1802 and the second positioning seat 1804 can achieve stable installation of the first lead screw 2 and the second lead screw 16 and stable operation of the overall structure.
[0053] Optionally, such as Figure 4 As shown, a first guide portion 1801 is formed on the first mounting member 18, and the first guide portion 1801 extends along the second direction S2. A second guide portion 1803 is formed on the second mounting member, and the second guide portion 1803 extends along the first direction S1. A first translation drive member 1 on the first mounting member 18 cooperates with the first guide portion 1801, and a second translation drive member 15 on the second mounting member cooperates with the second guide portion 1803.
[0054] Since this application requires the first clamping component 5 to move in the first direction S1 and the second direction S2, when the first movable block 3 moves in the first direction S1, the second movable block 4 will follow the first movable block 3 to move in the first direction S1 because the second movable block 4 is connected to the first movable block 3. Since this application adopts a lead screw engagement structure, the second lead screw 16 included in the second adjustment component and the motor connected to the second lead screw 16 will both move in the first direction S1 along with the second movable block 4. Therefore, by forming a first guide portion 1801 extending along the first direction S1 on the second mounting component and having the motor cooperate with the second guide portion 1803, this application can achieve stable movement of the motor of the second adjustment component and the second lead screw 16 in the first direction S1.
[0055] Accordingly, the first guide portion 1801 formed on the first mounting member 18 along the second direction S2 enables the motor of the first adjustment component and the first lead screw 2 to move stably in the second direction S2.
[0056] It should be noted that, since the first movable block 3 needs to be connected to the connecting block 501, a hollow portion can be formed on the first mounting member 18 in this application along the first direction S1. The size of the hollow portion in the first direction S1 and the second direction S2 is greater than the maximum movable stroke of the connecting block 501 in both directions, thereby avoiding the problem of the first mounting member 18 interfering with the movement of the first clamping component 5.
[0057] It should be further explained here that in this application, the first movable block 3 and the second movable block 4 are connected to achieve the above-mentioned two-directional movements. The first mounting member 18 and the second mounting member can be a single mounting plate. Accordingly, in order to achieve the connection with the connecting block 501, the mounting plate can have the above-mentioned hollowed-out portion, so that the connecting block can be connected to the first movable block 3 from below.
[0058] Optionally, such as Figure 1 As shown, the microfilament stretching and centering device in this application also includes a detection mechanism, which includes a laser 7 and a projection plate 8. The laser 7 and the projection plate 8 are arranged opposite to each other, and the light emitted by the laser 7 can irradiate the microfilament 11, so that the projection of the microfilament 11 is formed on the projection plate 8.
[0059] The positioning status of the microfilament 11 can be detected by the detection mechanism set around the microfilament 11. During detection, the laser 7 emits light to illuminate the projection plate 8. Since the light illuminating the microfilament 11 will leave a shadow on the projection plate 8, the shape of the shadow can be judged to determine whether the microfilament 11 is maintaining its vertical extension, thereby improving the positioning accuracy of the microfilament 11.
[0060] Preferably, the projection plate 8 in this application can be formed with multiple parallel reference lines engraved in the vertical direction. By comparing the projection with the reference lines, the state of the microfilament 11 can be accurately determined.
[0061] Optionally, such as Figure 3 As shown, the testing mechanism in this application also includes a turntable 17, a first connecting rod 1701 and a second connecting rod 1702. One end of the first connecting rod 1701 is connected to the turntable 17 and the other end is connected to the laser 7. One end of the second connecting rod 1702 is connected to the turntable 17 and the other end is connected to the projection plate 8. A through hole is formed in the center of the turntable 17, through which the microfilament 11 can pass and the turntable 17 can rotate around the microfilament 11.
[0062] It is understandable that when the position of the laser 7 is fixed, if the first clamping component 5 moves a certain distance toward the laser 7, the projected shadow may still be a shadow line parallel to or overlapping with the control line. Therefore, this application further sets up a turntable 17 and places the laser 7 and the projection plate 8 on the turntable 17, so that during the detection, the laser 7 and the projection plate 8 can be rotated at the same angle to observe the projection shape on the projection plate 8, so as to ensure that the detected microfilament 11 can be in a state of extending in the vertical direction.
[0063] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A microfilament stretching and centering device, characterized in that, Includes a first clamping mechanism and a second clamping mechanism; The first clamping mechanism includes a first clamping component, and the second clamping mechanism includes a second clamping component. The first clamping component and the second clamping component are arranged opposite to each other in the vertical direction, and both the first clamping component and the second clamping component include a first positioning element, a second positioning element, and a clamping drive element. The first positioning member has a positioning recess, and the second positioning member has a mating protrusion. The clamping drive member can drive the second positioning member to move towards or away from the first positioning member, so that the mating protrusion enters the positioning recess to clamp and position the microfilament.
2. The microfilament stretching and centering device according to claim 1, characterized in that, The cross-section of the positioning recess is V-shaped, and the size of the end face of the mating protrusion that contacts the microfilament is not less than the diameter of the microfilament.
3. The microfilament stretching and centering device according to claim 2, characterized in that, The first clamping assembly and the second clamping assembly further include a first buffer member and a second buffer member, which are located in the V-shaped positioning recess and are correspondingly disposed on two inclined surfaces of the positioning recess.
4. The microfilament stretching and centering device according to claim 1, characterized in that, The first clamping mechanism further includes a first adjustment component and a second adjustment component. The first adjustment component includes a first driving member and a first movable block, and the second adjustment component includes a second driving member and a second movable block. The first clamping assembly further includes a connecting block connected to the first movable block, and a second movable block connected to the first movable block. The first driving member can drive the first movable block to move in a first direction, and the second driving member can drive the second movable block to move in a second direction.
5. The microfilament stretching and centering device according to claim 4, characterized in that, The first driving component includes a first translational driving member and a first lead screw, and the second driving component includes a second translational driving member and a second lead screw. The output end of the first translational driving member is connected to the first lead screw to drive the first lead screw to rotate. The first movable block is disposed on the first lead screw and is threadedly engaged with the first lead screw. The output end of the second translation drive is connected to the second lead screw, driving the second lead screw to rotate. The second movable block is disposed on the lead screw and is threadedly engaged with the second lead screw.
6. The microfilament stretching and centering device according to claim 5, characterized in that, The first adjustment component further includes a first mounting member, and the second adjustment component further includes a second mounting member. The first translation drive member is disposed on the first mounting member, and the second translation drive member is disposed on the second mounting member. The first mounting member is provided with a first positioning seat at the end of the first lead screw away from the first translation drive member, and the second mounting member is provided with a second positioning seat at the end of the second lead screw away from the second translation drive member. The first lead screw is rotatably connected to the first positioning seat, and the second lead screw is rotatably connected to the second positioning seat.
7. The microfilament stretching and centering device according to claim 6, characterized in that, The first mounting member has a first guide portion that extends along the second direction, and the second mounting member has a second guide portion that extends along the first direction. The first translation drive member on the first mounting member cooperates with the first guide portion, and the second translation drive member on the second mounting member cooperates with the second guide portion.
8. The microfilament stretching and centering device according to claim 1, characterized in that, It also includes a detection mechanism, which includes a laser and a projection plate. The laser and the projection plate are arranged opposite to each other, and the light emitted by the laser can illuminate the microfilament, so that the projection plate forms a projection of the microfilament.
9. The microfilament stretching and centering device according to claim 8, characterized in that, The projection plate has multiple parallel lines engraved in the vertical direction.
10. The microfilament stretching and centering device according to claim 8, characterized in that, The detection mechanism further includes a turntable, a first connecting rod, and a second connecting rod. One end of the first connecting rod is connected to the turntable, and the other end is connected to the laser. One end of the second connecting rod is connected to the turntable, and the other end is connected to the projection plate. A through hole is formed in the center of the turntable, through which the microfilament can pass, and the turntable can rotate around the microfilament.