A sample cutting device

Abstract

The application relates to a sample cutting device which comprises a cutting table, at least one cutter and at least one pre-fixing assembly corresponding to the at least one cutter one by one. The cutting table is provided with a bearing surface and at least one cutting surface connected with the bearing surface. The bearing surface is used for bearing a body part of a sample. A part to be cut of the sample can extend from the bearing surface to the cutting surface. The cutter is rotationally connected to the cutting table and is used for cutting the part to be cut. The at least one pre-fixing assembly is arranged on the at least one cutter. In the cutting rotation direction of the cutter, the pre-fixing assembly can press against the body part on the bearing surface to pre-fix the body part in the first rotation angle range. In the second rotation angle range, the pre-fixing assembly continuously pre-fixes the body part, and the cutter cuts the part to be cut. In this way, the pre-fixing assembly can fix the body of the sample when the cutter cuts the sample, so that the sample is prevented from deviating, and the cutting accuracy is improved.

Description

Technical Field

[0001] This application relates to the field of composite materials technology, and in particular to a sample cutting device. Background Technology

[0002] Testing the tensile strength of fibers is a crucial technical step in the entire chain of fiber material research, development, production, and application. Tensile strength is obtained by testing fiber samples. During sample preparation, the edges often need to be trimmed; manual cutting introduces operational errors, affecting the accuracy of the test results and resulting in low preparation efficiency. Utility Model Content

[0003] To address the aforementioned technical problems, this application provides a sample cutting device that improves the accuracy and efficiency of sample preparation.

[0004] According to some embodiments, this application provides a sample cutting device, which includes: A cutting table, wherein the cutting table is provided with a bearing surface and at least one cutting surface connected to the bearing surface, the bearing surface is used to bear the body part of the sample, and the part of the sample to be cut can extend from the bearing surface to the cutting surface. At least one cutting blade, corresponding one-to-one with at least one cutting surface, the cutting blade being rotatably connected to the cutting table, the cutting blade being used to cut the portion to be cut; At least one pre-fixing component corresponds one-to-one with at least one of the cutters, and the at least one pre-fixing component is respectively disposed on at least one of the cutters; Along the cutting rotation direction of the cutter, the cutter has a first rotation angle range and a second rotation angle range. In the first rotation angle range, the pre-fixing component can press against the body part located on the bearing surface to pre-fix the body part. In the second rotation angle range, the pre-fixing component continues to pre-fix the body part, and the cutter cuts the part to be cut.

[0005] In some embodiments of this application, the cutter is provided with a guide channel, the extension direction of the guide channel is adapted to the rotation direction of the cutter, and the pre-fixing component includes: A guide rod is slidably connected to the guide channel, and the extension direction of the guide rod is adapted to the extension direction of the guide channel. Within the first rotation angle range, the first end of the guide rod can press against the body part located on the bearing surface. Within the second rotation angle range, the cutter and the guide rod move relative to each other through the guide channel. A spring is sleeved on the guide rod, with a first end of the spring fixed to the cutter and a second end of the spring fixed to the guide rod. The spring is used to provide pressure to the guide rod against the body portion when the cutter is in the second rotation angle range.

[0006] In some embodiments of this application, the cutter includes a cutter body and a fixing block connected to the cutter body. The cutter body is used to cut the part to be cut. The outer surface of the fixing block is provided with a sleeve structure, and the inner cavity of the sleeve structure forms the guide channel.

[0007] In some embodiments of this application, the pre-fixing component further includes: A pressure plate is disposed at the first end of the guide rod, and within the first rotation angle range, the pressure plate can press against the body portion located on the bearing surface.

[0008] In some embodiments of this application, the two opposite edges of the bearing surface are connected to the cutting surface, and the cutting surface is perpendicular to the bearing surface. Two cutting blades are respectively provided for the two cutting surfaces, and when the cutting blade is in the cutting position of cutting the part to be cut, the cutting blade is in contact with the corresponding cutting surface.

[0009] In some embodiments of this application, the sample cutting device further includes: At least one positioning component is disposed on the cutting table, the positioning component being used to position the body portion within a preset area of ​​the bearing surface.

[0010] In some embodiments of this application, the positioning component includes: A sliding block is slidably connected to the cutting table; A positioning block, which is connected to the sliding block and is attached to the bearing surface, is used to position the main body part; A limiting part is provided on the sliding block, and the limiting part is used to restrict the movement of the sliding block.

[0011] In some embodiments of this application, an indicator line is provided on the bearing surface, and the indicator line is used to cooperate with the positioning component to position the body part in the preset area.

[0012] In some embodiments of this application, the sample cutting device further includes a heating chamber, and the sample cutting device further includes a gripping part connected to the cutter, the gripping part being used to drive the cutter to rotate.

[0013] In some embodiments of this application, the sample cutting device further includes: The base, wherein the cutting table is disposed on the base; A fixing part is provided on the side surface of the base away from the cutting table, and the fixing part is used to fix the base in a preset position.

[0014] The sample cutting device provided in this application can achieve the following beneficial technical effects: The sample cutting device provided in this application includes a cutter rotatably connected to a cutting table. A pre-fixing component is provided on the cutter. When the cutter and the cutting surface of the cutting table cooperate to cut the sample, the fixing component can pre-fix the main body of the sample, preventing the sample from shifting under the force of the cutter, ensuring the accuracy of the cut, and improving the cutting efficiency. Attached Figure Description

[0015] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the present application and, together with the description, serve to explain the principles of the application. In these drawings, similar reference numerals are used to denote similar elements. The drawings described below are some embodiments of the present application, but not all embodiments. Other drawings will be readily available to those skilled in the art based on these drawings without any inventive effort.

[0016] Figure 1 This is a schematic diagram of the structure of a sample cutting device according to an embodiment of this application; Figure 2 This is a schematic diagram of the structure of a sample cutting device shown in another embodiment of this application; Figure 3 This is a schematic diagram of the structure of a pre-fixed component shown in one embodiment of this application; Figure 4 This is a schematic diagram of the positioning component shown in one embodiment of this application; Figure 5 This is a schematic diagram of the sample before and after cutting, as shown in an embodiment of this application.

[0017] Figure label: 10. Sample; 11. Main body; 12. Part to be cut; 100. Cutting table; 110. Bearing surface; 1110. Indicator line; 120. Cutting surface; 130. Groove; 200. Cutting blade; 210. Cutting blade body; 220. Fixing block; 230. Sleeve structure; 300. Pre-fixed assembly; 310. Guide rod; 320. Pressure plate; 330. Spring; 340. Baffle; 400. Positioning component; 410. Sliding block; 420. Positioning block; 430. Limiting part; 500, grip; 600, base; 700, fixing part. Detailed Implementation

[0018] 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, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application. It should be noted that, unless otherwise specified, the embodiments and features in the embodiments of this application can be arbitrarily combined with each other.

[0019] A fiber filament specimen consists of a fiber filament and two reinforcing plates located at both ends of the fiber filament. The fiber filament can be a monofilament or a multifilament. Fiber filament specimens can be used to perform various mechanical property tests to determine the mechanical properties of the fiber filament. Fiber filament specimens are often composed of, for example,... Figure 5 The reinforcing sheet shown is cut into multiple fiber filaments of the sample to obtain a structure where each fiber filament has a reinforcing sheet at both ends. The edges of the sample need to be trimmed. In related technologies, manual cutting is often used, which not only introduces operational errors, affecting the accuracy of the test results, but also results in low efficiency.

[0020] To address the aforementioned issues, this application provides a sample cutting device. By rotatably connecting a cutter to a cutting table, and by providing a pre-fixing component on the cutter, the fixing component can pre-fix the main body of the sample when the cutter and the cutting surface of the cutting table are engaged to cut the sample. This prevents the sample from shifting under the force of the cutter, ensuring the accuracy of the cut and improving the cutting efficiency.

[0021] The sample cutting apparatus provided in accordance with this application will now be described in detail with reference to the accompanying drawings.

[0022] An exemplary embodiment of this application provides a sample cutting device, such as... Figure 1 , Figure 2 and Figure 5As shown, the sample cutting device includes a cutting table 100, a cutter 200, and a pre-fixing assembly 300. The cutting table 100 includes a bearing surface 110 for supporting the body portion 11 of the sample 10 and at least one cutting surface 120 connected to the bearing surface 110. The angle between the cutting surface 120 and the bearing surface 110 is, for example, 180°. The cutting surface 120 can also be perpendicular to the bearing surface 110. When the sample 10 is placed on the bearing table, the portion 12 to be cut of the sample 10 can extend from the bearing surface 110 to the cutting surface 120. The cutting surface 120 contacts the cutter 200 to cut the portion 12 of the sample 10. At least one cutter 200 corresponds one-to-one with at least one cutting surface 120, and the cutter 200 is rotatably connected to the cutting table 100. At least one pre-fixing assembly 300 corresponds one-to-one with at least one cutter 200, and the pre-fixing assemblies 300 are respectively disposed on each cutter 200 in the extending direction of the cutter 200. Figure 1 (in the x-axis direction), the pre-fixed component 300 is provided, for example, at either end of the cutter 200 or in the middle of the cutter 200.

[0023] The cutter 200 completes the cutting of the sample 10 by rotating. Along the cutting rotation direction of the cutter 200, the cutter 200 has a first rotation angle range and a second rotation angle range. In the first rotation angle range, the pre-fixing component 300 can press against the body part 11 located on the bearing surface 110 to pre-fix the body part 11. In the second rotation angle range, the pre-fixing component 300 continues to pre-fix the body part 11, and the cutter 200 cuts the part 12 to be cut.

[0024] It should be noted that the cutter 200 may or may not begin cutting the sample 10 within the first rotation angle range, depending on factors such as the thickness of the sample 10 and its position on the cutting table 100. For example, within the first rotation range, after the pre-fixing component 300 has pressed against the body portion 11 of the sample 10, the cutter 200 begins cutting the sample 10 and continues cutting within the second rotation angle range until the cutting is complete. Additionally, as... Figure 5 As shown, the cutting of sample 10 may only remove the fibers protruding from the reinforcing sheet, or it may remove part of the reinforcing sheet and fibers.

[0025] In this embodiment, by setting a cutter 200 rotatably connected to the cutting table 100, and setting a pre-fixing component 300 on the cutter 200, when the cutter 200 cooperates with the cutting surface 120 of the cutting table 100 to cut the sample 10, the fixing component can pre-fix the body part 11 of the sample 10, so as to prevent the sample 10 from shifting under the force of the cutter 200, ensuring the accuracy of cutting and improving the cutting efficiency.

[0026] In some embodiments, such as Figures 1 to 3 As shown, each cutter 200 is provided with a guide channel. The extension direction of the guide channel is adapted to the rotation direction of the cutter 200. The guide channel can be formed by a tubular structure provided on the outer surface of the cutter 200, or by opening a channel inside the cutter 200. The pre-fixing assembly 300 includes a guide rod 310 and a spring 330. The guide rod 310 is slidably connected to the guide channel, and the extension direction of the guide rod 310 is adapted to the extension direction of the guide channel. For example, both are set to be arc-shaped to ensure that the guide rod 310 can slide in the guide channel. The spring 330 is sleeved on the guide rod 310, and at least one end of the guide rod 310 is connected to the cutter 200 through the spring 330. When one end of the guide rod 310 presses against the sample 10, the cutter 200 continues to rotate, that is, the cutter 200 is in the second rotation angle range. The spring 330 connected to the cutter 200 deforms, and the resulting elastic force pulls the guide rod 310 to provide further pressure to the guide rod 310 against the body part 11.

[0027] Understandably, each pre-fixing component 300 may include a spring 330, which is disposed between the cutter 200 and the end of the guide rod 310 that contacts the sample 10, or the spring 330 is disposed between the cutter 200 and the end of the guide rod 310 that is away from the sample 10. Each pre-fixing component may also include two springs 330, with one spring 330 connected to each end of the cutter 200 and the guide rod 310. Those skilled in the art can make adjustments according to actual needs, all of which are within the scope of protection of this application and will not be elaborated here.

[0028] In this embodiment, by setting a guide rod 310 that can slide in the guide channel and a spring 330 connecting the cutter 200 and the guide rod 310, after one end of the guide rod 310 contacts the sample 10, the cutter 200 continues to rotate. The cutter 200 applies force to the guide rod 310 through the spring 330, which further improves the stability of the pressure and ensures the accuracy of the cutting.

[0029] In some embodiments, such as Figure 1 As shown, the cutter 200 includes a cutter body 210 and a fixing block 220 connected to the cutter body 210. The cutter body 210 is used to cut the part 12 to be cut of the sample 10. The fixing block 220 is disposed, for example, above the cutter body 210 or on the surface of the cutter body 210 near the sample 10. The shape of the fixing block 220 can be set according to actual needs. The sleeve structure 230 is disposed on the outer surface of the fixing block 220. The inner cavity of the sleeve structure 230 forms a guide channel. A spring 330 is disposed between the sleeve structure 230 and the guide rod 310. The spring 330 is sleeved on the guide rod 310 and connects the guide rod 310 and the sleeve structure 230.

[0030] In this embodiment, a sleeve structure 230 fixed to the fixing block 220 is set as a guide channel. The sleeve structure 230 slides on the guide rod 310. The spring 330 increases the pressure on the sample 10 and also improves the stability of the pressure, avoiding interference with the rotation of the cutter 200.

[0031] In some embodiments, such as Figures 1 to 3 As shown, the pre-fixing assembly 300 also includes a pressure plate 320 and a baffle 340. The pressure plate 320 is disposed at the end of the guide rod 310 near the sample 10, and the baffle 340 is disposed at the end of the guide rod 310 away from the sample 10. One end of the spring 330 is connected to the baffle 340, and the other end is connected to the sleeve structure 230. In the first rotation angle range, the pressure plate 320 can press against the body part 11 located on the bearing surface 110. In the second rotation angle range, the cutter 200 and the guide rod 310 move relative to each other through the guide channel.

[0032] In this embodiment, by setting the pressure plate 320 to contact the sample 10, not only can the guide rod 310 be prevented from shaking when subjected to the elastic force of the spring 330, thus affecting the pre-fixing effect, but the pressure is also reduced by increasing the contact area, thus avoiding damage to the sample 10. In addition, by setting the baffle 340, the guide rod 310 can be limited, preventing the guide rod 310 from coming out of the sleeve structure 230 under the action of the spring 330, thereby improving the reliability of the sample cutting device.

[0033] In some embodiments, such as Figure 1 and Figure 2 As shown, the two opposite edges of the bearing surface 110 are connected to cutting surfaces 120, and both cutting surfaces 120 are perpendicular to the bearing surface 110. Two cutters 200 are provided corresponding to the two cutting surfaces 120. The two cutters 200 are respectively provided on both sides of the cutting table 100 and are rotatably connected to the cutting surfaces 120. When the cutter 200 is in the cutting position to cut the part 12 to be cut, the cutter 200 is in contact with the corresponding cutting surface 120. That is, when the cutter 200 rotates within the second angle range, the cutting table 100 will not obstruct the rotation of the cutter 200. At the same time, the cutter 200 can cooperate with the cutting surface 120 to complete the cutting of the sample 10 through shearing force.

[0034] In this embodiment, by setting a cutting surface 120 perpendicular to the bearing surface 110, the cutter 200 can cooperate with the cutting surface 120 to cut the sample 10 by shearing force. Moreover, the two cutters 200 cut the parts 12 to be cut on both sides of the sample 10 without having to adjust the position of the sample 10 after cutting one end, thus ensuring the efficiency of cutting.

[0035] In some embodiments, such as Figure 1 , Figure 2 and Figure 4 As shown, the sample cutting device also includes at least one set of positioning components 400, each set of positioning components 400 including components in the width direction of the cutting table 100 (e.g., ...). Figure 1 , Figure 2 and Figure 4 Two positioning components 400 are arranged opposite each other (shown in the y-axis direction), and the positioning components 400 are disposed on the cutting table 100; in this embodiment, one set of positioning components 400 is provided, and one set of positioning components 400 is disposed near the end near the connection between the cutting table 100 and the cutter 200. In other embodiments, two sets of positioning components 400 are provided, and the two sets of positioning components 400 are respectively disposed on the cutting table 100 along the length direction (e.g., along the y-axis direction). Figure 1 , Figure 2 and Figure 4 The two ends of the x-axis direction shown in the figure; such as Figure 5 As shown, since the size of the reinforcing plates at both ends must be the same after the sample is cut, the positioning component 400 can determine the placement position of the sample 10 before the sample 10 is placed on the bearing surface 110, so as to restrict the position of the sample 10 after the sample 10 is placed on the bearing surface 110.

[0036] In this embodiment, the position of the positioning component 400 is adjusted before placing the sample 10 on the bearing surface 110. The position of the sample 10 is determined by the positioning component 400, which ensures that the width of the reinforcing sheets at both ends of the sample 10 is the same after cutting, thereby improving the success rate of sample 10 preparation.

[0037] In some embodiments, such as Figure 2 and Figure 4As shown, the positioning assembly 400 includes a sliding block 410, a positioning block 420, and a limiting part 430. The sliding block 410 is slidably connected to the cutting table 100. For example, the sliding block 410 is connected to the side of the cutting table 100 other than the cutting surface 120. It can be understood that the sliding connection can be achieved by, for example, by creating a groove 130 in the cutting table 100 that fits the sliding block 410, or by providing a slide rail on the cutting table 100, on which the sliding block 410 moves. This is not limited here. The positioning block 420 is connected to the sliding block 410 and is attached to the bearing surface 110. The positioning block 420 can determine the placement of the sample 10 on the cutting table 100. The position can also limit the movement of the sample 10 during the cutting process; the limiting part 430 is provided on the sliding block 410, and the limiting part 430 is used to limit the movement of the sliding block 410. The limiting part 430 and the sliding block 410 are, for example, in the form of a protrusion and a groove 130, so as to limit the sliding block 410 to a certain fixed position of the cutting table 100. The sliding block 410 can also be in the form of a rack and pinion or a slider rail. The limiting part 430 is used to limit the sliding block 410 to any position of the cutting table 100. The limiting part 430 is, for example, in the form of a structure that can extend and retract the sliding block 410, such as a bolt, pin, etc., which is not limited here.

[0038] In this embodiment, by setting the sliding block 410, the position of the positioning block 420 on the bearing surface 110 can be changed, which makes it convenient to adjust the position of the positioning block 420 according to different samples 10. By setting the limiting part 430 to restrict the movement of the sliding block 410, the position of the positioning block 420 can be restricted, thereby restricting the position of the sample 10 on the cutting table 100 and preventing the sample 10 from shifting during the cutting process.

[0039] In some embodiments, such as Figure 4 As shown, the end of the positioning block 420 away from the sliding block 410 is provided with a chamfer structure. The chamfer structure has a guiding function, which improves the smoothness of the reinforcing plate part of the sample 10 sliding into the preset area on the bearing surface 110 through the chamfer structure, and can also prevent the positioning block 420 from damaging the sample 10 during the pushing process.

[0040] In some embodiments, reference Figure 2 and Figure 4 The sliding block 410 is configured with a T-shaped structure. A groove 130, adapted to the T-shaped sliding block 410, is correspondingly provided on the side of the cutting table 100. One groove 130 can correspond to one sliding block 410, or one groove 130 can correspond to two sliding blocks 410 in a set of positioning components 400. The sliding block 410 slides in the groove 130, and the groove 130 provides support for the sliding block 410 along the length direction of the cutting table 100 (e.g., ...). Figure 1 , Figure 2 and Figure 4(as shown in the x-axis direction) and along the thickness direction of the cutting table 100 (e.g.) Figure 1 , Figure 2 and Figure 4 The position of the positioning bar is defined in the z-axis direction shown in the figure to prevent the positioning bar from shifting.

[0041] In some embodiments, such as Figure 4 As shown, the sliding block 410 has an opening along the length direction of the cutting table 100 (e.g., Figure 4 A threaded hole extending in the x-axis direction (as shown in the diagram) passes through the sliding block 410. The limiting part 430 is configured as a bolt that mates with the threaded hole. The length of the bolt in the x-axis direction is greater than the length of the threaded hole in the x-axis direction. When it is necessary to limit the sliding block 410, the bolt is rotated, and one end of the bolt extends out of the sliding block 410 and abuts against the groove 130 of the cutting table 100, thereby limiting the sliding block 410. When it is necessary to move the sliding block 410, the bolt is rotated to retract the extended bolt.

[0042] In this embodiment, the limiting of the sliders is achieved through the cooperation of bolts and threaded holes. The structure is simple, easy to process, and the positioning block 420 can be limited in the width direction of the cutting table 100 (e.g., Figure 4 Any position on the y-axis direction shown in the figure.

[0043] In some embodiments, such as Figure 1 and Figure 2 As shown, multiple indicator lines 1110 are provided on the bearing surface 110. These indicator lines 1110 are, for example, scale lines, and all multiple indicator lines 1110 are along the width direction of the cutting table 100 (e.g., ...). Figure 1 and Figure 2 Extending along the y-axis direction shown in the figure, and respectively disposed at both ends of the bearing surface 110 along the y-axis direction, along the length direction of the cutting table 100 (e.g., along the y-axis direction shown in the figure), and respectively disposed at both ends of the bearing surface 110 along the y-axis direction, along the length direction of the cutting table 100 (e.g., along the y-axis direction shown in the figure). Figure 1 and Figure 2 On the x-axis direction shown in the figure, multiple indicator lines 1110 can be staggered or aligned. The indicator lines 1110 are used to cooperate with the positioning component 400 to position the body part 11 in a preset area.

[0044] In this embodiment, after the position of the positioning block 420 is determined, the sample 10 is placed on the bearing surface 110. The indicator line 1110 is used to determine whether the sample 10 has shifted and whether the size of the reinforcing plates on both sides is the same, thus ensuring the accuracy of the cutting.

[0045] In some embodiments, continue to refer to Figure 1 and Figure 2The sample cutting device also includes a gripping part 500 connected to the cutter 200. The gripping part 500 is used by the operator to hold and rotate the cutter 200. It is understood that each cutter 200 can be provided with a corresponding gripping part 500 to control the cutter 200 separately, or two cutters 200 can be connected through one gripping part 500 (e.g., ...). Figure 1 and Figure 2 As shown in the diagram, this allows both cutters 200 to rotate synchronously, completing the cutting of the portion 12 to be cut. In this embodiment, a grip 500 is provided to facilitate operator control of the cutters 200.

[0046] In some embodiments, such as Figure 1 and Figure 2 As shown, the sample cutting device also includes a base 600 and a fixing part 700. The cutting table 100 is disposed on the base 600, and the cutting surface 120 of the cutting table 100 is connected to the base 600. The base 600 can prevent the cutter 200 from rotating further after the sample is cut, so as to prevent the cutter 200 from scratching other items. The fixing part 700 is disposed on the side surface of the base 600 away from the cutting table 100. The fixing part 700 is used to fix the base 600 in a preset position. The fixing part 700 is, for example, a suction cup, adhesive, etc.

[0047] In this embodiment, by setting a base 600 and a fixing part 700, the fixing part 700 can prevent the sample cutting device from shifting position during use, thus ensuring the accuracy of cutting.

[0048] In some embodiments, such as Figure 1 As shown, both the base 600 and the cutting table 100 are configured as plate-like structures with rectangular cross-sections, and in the width direction of the cutting table 100 (e.g., ... Figure 1 On the y-axis direction shown in the figure, the cutting table 100 is located in the middle of the base 600. The part of the base 600 not covered by the cutting table 100 is used to block the cutter 200, that is, as the stop position for cutting. The fixing part 700 includes four suction cups, which are located at the four corners of the base 600.

[0049] In this embodiment, the suction cup provides a secure fixation and facilitates position adjustment of the sample cutting device.

[0050] The sample cutting device provided in this application improves cutting efficiency and accuracy, ensures the success rate of sample 10 preparation, and thus ensures the accuracy of mechanical property test results.

[0051] The above-described contents can be implemented individually or in various combinations, and these variations are all within the scope of protection of this application.

[0052] It should be noted that in the description of this application, the terms "upper", "lower", "front", "rear", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application 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 this application.

[0053] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0054] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; 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; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0055] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0056] Although embodiments of this application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting this application. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of this application.

Claims

1. A sample cutting device, characterized in that, include: A cutting table, wherein the cutting table is provided with a bearing surface and at least one cutting surface connected to the bearing surface, the bearing surface is used to bear the body part of the sample, and the part of the sample to be cut can extend from the bearing surface to the cutting surface. At least one cutting blade, corresponding one-to-one with at least one cutting surface, the cutting blade being rotatably connected to the cutting table, the cutting blade being used to cut the portion to be cut; At least one pre-fixing component corresponds one-to-one with at least one of the cutters, and the at least one pre-fixing component is respectively disposed on at least one of the cutters; Along the cutting rotation direction of the cutter, the cutter has a first rotation angle range and a second rotation angle range. In the first rotation angle range, the pre-fixing component can press against the body part located on the bearing surface to pre-fix the body part. In the second rotation angle range, the pre-fixing component continues to pre-fix the body part, and the cutter cuts the part to be cut.

2. The sample cutting device according to claim 1, characterized in that, Each cutter is provided with a guide channel, the extension direction of which is adapted to the rotation direction of the cutter. The pre-fixing component includes: A guide rod is slidably connected to the guide channel, and the extension direction of the guide rod is adapted to the extension direction of the guide channel. Within the first rotation angle range, the first end of the guide rod can press against the body part located on the bearing surface. Within the second rotation angle range, the cutter and the guide rod move relative to each other through the guide channel. A spring is sleeved on the guide rod, with a first end of the spring fixed to the cutter and a second end of the spring fixed to the guide rod. The spring is used to provide pressure to the guide rod against the body portion when the cutter is in the second rotation angle range.

3. The sample cutting device according to claim 2, characterized in that, The cutter includes a cutter body and a fixing block connected to the cutter body. The cutter body is used to cut the part to be cut. The outer surface of the fixing block is provided with a sleeve structure, and the inner cavity of the sleeve structure forms the guide channel.

4. The sample cutting device according to claim 2, characterized in that, The pre-fixing component also includes: A pressure plate is disposed at the first end of the guide rod, and within the first rotation angle range, the pressure plate can press against the body portion located on the bearing surface.

5. The sample cutting device according to claim 1, characterized in that, The two opposite edges of the bearing surface are connected to the cutting surface, and the cutting surface is perpendicular to the bearing surface. Two cutting blades are respectively provided for the two cutting surfaces, and when the cutting blade is in the cutting position to cut the part to be cut, the cutting blade is in contact with the corresponding cutting surface.

6. The sample cutting apparatus according to any one of claims 1 to 5, characterized in that, The sample cutting device further includes: At least one positioning component is disposed on the cutting table, the positioning component being used to position the body portion within a preset area of ​​the bearing surface.

7. The sample cutting device according to claim 6, characterized in that, The positioning component includes: A sliding block is slidably connected to the cutting table; A positioning block, which is connected to the sliding block and is attached to the bearing surface, is used to position the main body part; A limiting part is provided on the sliding block, and the limiting part is used to restrict the movement of the sliding block.

8. The sample cutting device according to claim 6, characterized in that, An indicator line is provided on the bearing surface. The indicator line is used to cooperate with the positioning component to position the main body part in the preset area.

9. The sample cutting apparatus according to any one of claims 1 to 5, characterized in that, The sample cutting device also includes a gripping part connected to the cutter, which is used to drive the cutter to rotate.

10. The sample cutting apparatus according to any one of claims 1 to 5, characterized in that, The sample cutting device further includes: The base, wherein the cutting table is disposed on the base; A fixing part is provided on the side surface of the base away from the cutting table, and the fixing part is used to fix the base in a preset position.

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