Medical sampling needle outer wall automatic polishing equipment

Abstract

The application relates to the technical field of medical instrument processing, in particular to a medical sampling needle outer wall automatic polishing equipment, which comprises a placing table, a first linear driving assembly, a rotary driving assembly, a second linear driving assembly, a sanding assembly and a clamping assembly. The first linear driving assembly is arranged on the placing table, the rotary driving assembly is sleeved on the first linear driving assembly, two second linear driving assemblies are oppositely arranged on the placing table and are perpendicular to the driving direction of the first linear driving assembly, two sanding assemblies are arranged between the two second linear driving assemblies to form a polishing channel, and the clamping assembly is arranged at the rotary end of the rotary driving assembly and is used for clamping a sampling needle to be polished. The application can realize automatic polishing of the medical sampling needle outer wall, improve polishing efficiency and quality, and ensure the stability and accuracy of the sampling needle polishing process through the arrangement of the assemblies.

Description

Technical Field

[0001] This application relates to the field of medical device processing technology, and in particular to an automatic polishing device for the outer wall of a medical sampling needle. Background Technology

[0002] In the field of medical testing, sampling needles are key instruments in automated analytical equipment for sample aspiration, transfer, and dispensing. To improve efficiency and control costs, high-end sampling needles are designed to be reusable, with their work cycle consisting of three steps: sampling, dispensing, and cleaning. Among these, the surface smoothness of the outer wall of the sampling needle is crucial for its reusability. Since the outer wall repeatedly comes into contact with the sample liquid surface, reaction vessel, and cleaning solution, any microscopic roughness, scratches, or burrs will cause serious problems: firstly, sample residue and cross-contamination, as sticky samples easily adhere to rough surfaces, and incomplete cleaning will contaminate subsequent samples, affecting testing accuracy; secondly, it increases cleaning difficulty and reduces equipment throughput. Therefore, extremely high outer wall smoothness is core to ensuring "no residue buildup, easy cleaning," preventing cross-contamination, and guaranteeing operational efficiency.

[0003] Currently, polishing the outer wall of sampling needles mainly relies on manual grinding, which has significant drawbacks: low efficiency, making it difficult to meet the needs of mass production; poor precision and consistency, easily resulting in localized roughness or deformation, and large quality fluctuations; and insufficient quality stability, making it difficult to guarantee that each needle meets medical standards. Existing general-purpose polishing equipment also cannot meet the requirements of the small size, high aspect ratio, and extremely high precision of sampling needles. Therefore, there is an urgent need to develop an automated polishing device specifically for the outer wall of sampling needles to efficiently and accurately solve this manufacturing bottleneck and support the quality control and mass production of reusable sampling needles. Utility Model Content

[0004] The purpose of this application is to overcome the above-mentioned technical problems and provide an automatic polishing device for the outer wall of a medical sampling needle, which can improve polishing efficiency and quality, and ensure the stability and accuracy of the sampling needle polishing process through the arrangement of each component.

[0005] This application discloses an automatic polishing device for the outer wall of a medical sampling needle, which specifically adopts the following solution: An automatic polishing device for the outer wall of a medical sampling needle includes: a placement stage; a first linear drive assembly disposed on the placement stage; a rotary drive assembly sleeved on the first linear drive assembly for linear reciprocating motion driven by the first linear drive assembly; two second linear drive assemblies disposed opposite each other on the placement stage and perpendicular to the driving direction of the first linear drive assembly; two abrasive assemblies disposed between the two second linear drive assemblies, forming a polishing channel between the two abrasive assemblies for the sampling needle to be polished to reciprocate; and a clamping assembly disposed on the rotary drive assembly near the rotating ends of the two abrasive assemblies for clamping the sampling needle to be polished, for rotating with the rotary drive assembly and reciprocating linearly with the first linear drive assembly.

[0006] By adopting the above technical solution, the placement platform can provide support and installation foundation; the first linear drive component can drive the rotary drive component to reciprocate linearly, enabling the clamped sampling needle to move linearly, ensuring that all parts of the outer wall of the sampling needle are polished, improving polishing uniformity and efficiency; the rotary drive component drives the sampling needle to rotate, which, in conjunction with the linear reciprocating motion, can polish the outer wall of the sampling needle more comprehensively, improving the polishing effect; the second linear drive component, which is set opposite to and perpendicular to the running direction of the first linear drive component, can flexibly adjust the position of the abrasive component as needed to adapt to the polishing requirements of sampling needles of different sizes; the two abrasive components form a polishing channel, which can effectively polish the sampling needle that is reciprocating through it; the clamping component can firmly clamp the sampling needle to be polished, ensuring its stability during rotation and linear motion, avoiding shaking that affects the polishing quality, thereby improving the overall efficiency and quality of polishing the outer wall of the medical sampling needle.

[0007] Optionally, it also includes: a guide stabilizing component, disposed at both ends of the two abrasive components and located at both ends of the abrasion channel, for reciprocating insertion of the sampling needle to be abraded.

[0008] By adopting the above technical solution, the guiding and stabilizing components are set at both ends of the two abrasive components and at both ends of the grinding channel. They can be used to reciprocate the sampling needle to be ground, providing guidance for the reciprocating motion of the sampling needle to be ground, ensuring the accuracy of its motion trajectory, and at the same time stabilizing the sampling needle to be ground, preventing it from shaking or deviating during the grinding process, thereby improving the grinding effect and quality.

[0009] Optionally, the guiding and stabilizing component includes: a fourth mounting member, one end of which is disposed on the placement platform and the other end of which is provided with a through groove; and a through member, located in the through groove, and having a through hole on the through member for the sampling needle to be ground to pass through, wherein the inner diameter of the through hole is adapted to the outer diameter of the sampling needle to be ground.

[0010] By adopting the above technical solution, the fourth mounting component, placed on the placement platform, can play a supporting and fixing role, providing a stable installation foundation for the insertion component; the through hole on the insertion component, with an inner diameter adapted to the outer diameter of the sampling needle to be ground, allows the sampling needle to be ground to be smoothly inserted, while also guiding the sampling needle to be ground, ensuring its straightness during the reciprocating insertion process, and stabilizing the sampling needle to be ground to a certain extent, reducing its shaking, and improving the accuracy and effect of grinding.

[0011] Optionally, the second linear drive assembly includes: a first mounting member disposed on the placement platform; a linear drive member disposed on the side of the first mounting member; a second mounting member abutting and fixed to the linear drive member for linear movement driven by the linear drive member; a rotary drive member disposed on the second mounting member for moving together with the second mounting member; a third mounting member covering the end of the rotary drive member away from the placement platform, with one side fixed to the second mounting member; and an adjustment member located between the third mounting member and the linear drive member, connected to the second mounting member, abutting the third mounting member and adjusting the height of the third mounting member relative to the placement platform, wherein the third mounting member is provided with an adjustment hole for adjusting the position of a screw component.

[0012] By adopting the above technical solution, the first mounting component is set on the placement platform, providing a mounting base for the linear drive component and ensuring its stable operation. The linear drive component is set on the side of the first mounting component and can drive the second mounting component to perform linear movement, realizing the linear drive function of the corresponding component. The second mounting component is abutted and fixed on the linear drive component and can perform linear movement with the linear drive component, driving the rotary drive component and other components to move together to adjust the grinding space. The rotary drive component is set on the second mounting component, providing power for the rotation of the abrasive assembly, and can also move together with the second mounting component. The third mounting component is covered on the end of the rotary drive component away from the placement platform, and one side of the third mounting component is fixed on the second mounting component, providing a mounting and support structure for the abrasive assembly, etc. The adjusting component is located between the third mounting component and the linear drive component, connected to the second mounting component, and can abut against the third mounting component and adjust the height of the third mounting component relative to the placement platform. With the adjustment hole on the third mounting component, the height position of the abrasive assembly can be flexibly adjusted to adapt to the polishing requirements of different specifications of sampling needles to be ground.

[0013] Optionally, the frosted assembly includes: a frosted part located at the end of the third mounting member away from the rotary drive member, for rotating with the drive of the rotary drive member; and a fixing member, one end of which passes through the frosted part and through the third mounting member and is connected to the rotary drive member, thereby fixing the frosted part to the rotary drive member.

[0014] By adopting the above technical solution, the abrasive part is located at the end of the third mounting part away from the rotary drive part and can rotate with the drive of the rotary drive part, which can polish the outer wall of the sampling needle to be polished, making the outer wall of the sampling needle to be polished smoother; one end of the fixing part is inserted through the abrasive part and passes through the third mounting part and is connected to the rotary drive part, which can fix the abrasive part on the rotary drive part, ensure the stability of the abrasive part during the rotation process, and ensure the polishing effect.

[0015] Optionally, the clamping assembly includes: a clamping base connected to the drive rotation end of the rotary drive assembly, and provided with an arc-shaped placement groove for placing one end of the sampling needle to be ground; a cover member, one end of which is movably connected to the clamping base for covering the sampling needle to be ground, and a first sleeve rod provided on the clamping base for the cover member to be sleeved. A connector, one end of which is movably connected to the clamping base, and a second fitting rod for the connector to be fitted onto the clamping base; a screwing member, for being rotatably fitted onto the connector; a cover member, having a through groove, and after the cover member is placed over the clamping base, the connector passes through the through groove and is fitted onto the screwing member, and the screwing member rotates to abut against the cover member to press the sampling needle to be ground.

[0016] By adopting the above technical solution, the arc-shaped placement groove of the clamping base can conveniently place one end of the sampling needle to be ground, providing a stable placement position for the sampling needle; one end of the cover is movably connected to the clamping base and sleeved through the first sleeve rod, which can cover the sampling needle placed in the arc-shaped placement groove and prevent the sampling needle from coming out in subsequent operations; one end of the connector is movably connected to the clamping base and sleeved through the second sleeve rod, which facilitates its cooperation with the cover; the screwing component is rotated and sleeved on the connector. After the cover is placed on the clamping base, the connector passes through the through groove and is sleeved by the screwing component. The rotating screwing component abuts against the cover to press the sampling needle to be ground, so that the sampling needle can rotate stably and reciprocate linearly under the drive of the rotary drive component, ensuring the stability and accuracy of the polishing process.

[0017] Optionally, the clamping assembly further includes a spring element located at the connection point between the cover element and the clamping base, with one end connected to the clamping base and the other end used to abut against the cover element.

[0018] By adopting the above technical solution, the spring component is set at the connection position between the cover and the clamping base. One end of the spring component is connected to the clamping base, and the other end abuts against the sampling needle to be polished. It can provide elastic support for the cover, making it easy to open the cover. At the same time, the spring component can buffer the vibration generated during the rotation and linear reciprocating motion of the sampling needle to be polished, reduce damage to the sampling needle, and ensure the polishing effect and quality of the automatic polishing equipment for the outer wall of the medical sampling needle.

[0019] Optionally, the side of the adjusting member that abuts against the third mounting member is an inclined surface.

[0020] By adopting the above technical solution, the side of the adjusting component that abuts against the third mounting component is an inclined surface. When abutting against the third mounting component, the height of the third mounting component relative to the placement platform can be adjusted more precisely by utilizing the characteristics of the inclined surface. This enables fine-tuning of the height, improves the accuracy and stability of the height adjustment, and makes the height adjustment of the third mounting component more in line with actual needs. In turn, it ensures that the grinding component is at a suitable working height, thereby improving the polishing effect and polishing quality of the automatic polishing equipment for the outer wall of the medical sampling needle.

[0021] In summary, this application includes at least one of the following beneficial technical effects: 1. The placement platform of this device provides a stable support foundation for each component; the first linear drive component can drive the rotary drive component to perform linear reciprocating motion, enabling the clamped sampling needle to perform linear reciprocating motion within the grinding channel, ensuring that all parts of the outer wall of the sampling needle are ground, improving grinding uniformity and efficiency; the rotary drive component drives the sampling needle to rotate, which, combined with the linear reciprocating motion, can more comprehensively grind the outer wall of the sampling needle, improving the grinding effect; the second linear drive component, which is set opposite to and perpendicular to the running direction of the first linear drive component, can flexibly adjust the position of the grinding component as needed to adapt to the grinding requirements of sampling needles of different sizes; the two grinding components form a grinding channel, which can effectively grind the sampling needle that is reciprocating through it; the clamping component can firmly clamp the sampling needle to be ground, ensuring its stability during rotation and linear motion, avoiding shaking that affects the grinding quality, thereby improving the overall efficiency and quality of polishing the outer wall of the medical sampling needle; 2. The guide and stabilizing components are set at both ends of the two abrasive components and at both ends of the abrasive channel. They allow the sampling needle to be abraded to reciprocate through the abrasive, providing guidance for the reciprocating motion of the sampling needle and ensuring the accuracy of its trajectory. At the same time, they stabilize the sampling needle to be abraded, preventing it from shaking or deviating during the abrasive process, thereby improving the abrasive effect and quality. 3. The first mounting component of the second linear drive assembly is set on the placement platform, providing a mounting base for the linear drive assembly and ensuring its stable operation. The linear drive assembly is located on the side of the first mounting component and can drive the second mounting component to perform linear motion, realizing the linear drive function of the corresponding component. The second mounting component is abutted and fixed on the linear drive assembly and can perform linear motion with the linear drive assembly, driving the rotary drive assembly and other components to move together, expanding the working range of the equipment. The rotary drive assembly is set on the second mounting component and can move together with the second mounting component, providing power for the rotation of the grinding assembly. The third mounting component is covered on the end of the rotary drive assembly away from the placement platform, and one side is fixed on the second mounting component, providing a mounting and support structure for the grinding assembly and other components. The adjusting component is located between the third mounting component and the linear drive assembly, connected to the second mounting component, and can abut against the third mounting component to adjust the height of the third mounting component relative to the placement platform. With the adjustment hole on the third mounting component, the height position of the grinding assembly can be flexibly adjusted to adapt to the polishing requirements of different specifications of sampling needles to be ground. Attached Figure Description

[0022] Figure 1 This is a three-dimensional structural diagram of an automatic polishing device for the outer wall of a medical sampling needle disclosed in an embodiment of this application; Figure 2 for Figure 1 A schematic diagram of a partial structure of an automated polishing device for the outer wall of a medical sampling needle; Figure 3 for Figure 1 A schematic diagram of a partial structure of an automated polishing device for the outer wall of a medical sampling needle; Figure 4 for Figure 1 A schematic diagram of the clamping component in an automated polishing device for the outer wall of a medical sampling needle is disclosed. Figure 5 for Figure 1 An exploded view of the clamping component in an automated polishing device for the outer wall of a medical sampling needle.

[0023] Explanation of reference numerals in the attached figures: 10. Placement stage; 20. First linear drive assembly; 30. Rotary drive assembly; 40. Second linear drive assembly; 41. First mounting component; 42. Linear drive component; 43. Second mounting component; 44. Rotary drive component; 45. Third mounting component; 451. Adjustment hole; 46. Adjustment component; 47. Grinding channel; 50. Grinding assembly; 51. Grinding component; 52. Fixing component; 60. Clamping assembly; 61. Clamping base; 611. Arc-shaped placement groove; 612. First sleeve rod; 613. Second sleeve rod; 62. Cover component; 621. Through slot; 63. Connecting component; 64. Tightening component; 65. Spring component; 70. Guide stabilizing assembly; 71. Fourth mounting component; 72. Through component; 80. Sampling needle to be ground. Detailed Implementation

[0024] The terminology used in the following embodiments of this application is for the purpose of describing particular embodiments only and is not intended to be limiting of this application. As used in the specification and appended claims of this application, the singular expressions “a,” “an,” “the,” “the,” and “this” are intended to include the plural expressions as well, unless the context clearly indicates otherwise. It should also be understood that the term “and / or” as used in this application refers to and includes any or all possible combinations of one or more of the listed items.

[0025] Hereinafter, the terms "first" and "second" are used for descriptive purposes only and should not be construed as implying or suggesting relative importance or implicitly indicating the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature, and in the description of the embodiments of this application, unless otherwise stated, "multiple" means two or more.

[0026] The technical solutions of the embodiments of this application are described in detail below with reference to the accompanying drawings.

[0027] See Figure 1 and Figure 2 The present application discloses an automatic polishing device for the outer wall of a medical sampling needle, which includes a placement stage 10, a first linear drive assembly 20, a rotary drive assembly 30, a second linear drive assembly 40, a polishing assembly 50, a clamping assembly 60, and a guiding and stabilizing assembly 70.

[0028] The first linear drive assembly 20 is mounted on the placement platform 10. The rotary drive assembly 30 is sleeved on the first linear drive assembly 20 and can perform linear reciprocating motion with the drive of the first linear drive assembly 20. Two second linear drive assemblies 40 are arranged opposite each other on the placement platform 10 and are perpendicular to the driving direction of the first linear drive assembly 20. Two abrasive assemblies 50 are respectively mounted on the two second linear drive assemblies 40 to form a grinding channel 47 for the sampling needle 80 to be ground to reciprocate. The clamping assembly 60 is located at the rotating end of the rotary drive assembly 30 near the rotating end of the two abrasive assemblies 50 and is used to clamp the sampling needle 80 to be ground. It can rotate with the drive of the rotary drive assembly 30 and also perform linear reciprocating motion with the drive of the first linear drive assembly 20. The guiding and stabilizing assembly 70 is located at both ends of the two abrasive assemblies 50 and at both ends of the grinding channel 47. It is used for the sampling needle 80 to be ground to pass through during reciprocating motion to increase the running stability of the sampling needle 80 to be ground. Thus, the first linear drive component 20 drives the sampling needle to move linearly, the rotation drive component 30 and the clamping component 60 make the sampling needle rotate, and the cooperation of the second linear drive component 40, the abrasive component 50 and the guide stabilizing component 70 polishes the outer wall of the sampling needle, thereby achieving the effect of polishing the outer wall of the sampling needle efficiently and accurately.

[0029] Specifically, the mounting platform 10 is typically made of metal, such as stainless steel, which offers good strength and stability, providing a stable mounting platform for other components. The mounting platform 10 can be rectangular in shape with a smooth, flat surface, facilitating the installation and securing of various components. Alternatively, the mounting platform 10 can also be made of other metal materials such as aluminum alloy, or some high-strength engineering plastics.

[0030] The first linear drive assembly 20 includes a motor and a lead screw. The motor can be a servo motor, capable of precisely controlling the rotation of the lead screw to achieve precise linear drive. The lead screw is generally a ball screw, which has high transmission efficiency and precision. The motor is connected to the lead screw via a coupling, and a nut is fitted onto the lead screw. When the motor rotates, it drives the lead screw to rotate, and the nut moves linearly along the lead screw.

[0031] The rotary drive assembly 30 includes a rotary motor and a rotary shaft. The rotary motor can be a brushless DC motor, characterized by a wide speed range and high efficiency. The rotary shaft is typically a metal shaft, such as a carbon steel shaft, possessing certain strength and rigidity. The output shaft of the rotary motor is connected to the rotary shaft, which is fitted onto the nut of the first linear drive assembly 20. When the first linear drive assembly 20 operates, the rotary shaft reciprocates linearly along with the nut, while the rotary motor drives the rotary shaft to rotate. A keyed connection can be used between the rotary shaft and the nut to ensure reliable movement of the rotary shaft with the nut.

[0032] See Figure 2 and Figure 3The second linear drive assembly 40 includes a first mounting member 41, a linear drive member 42, a second mounting member 43, a rotary drive member 44, a third mounting member 45, and an adjusting member 46. The first mounting member 41 is a metal plate, such as an aluminum plate, which is fixed to the placement platform 10 by bolts. Its structural shape is as follows: Figure 2 As shown. The linear drive component 42 is a servo motor, which provides linear driving force to drive the second mounting component 43 to perform linear motion. The second mounting component 43 is also a metal plate, with an abutment end on its side for abutting and fixing to the linear drive component 42 for linear motion driven by the linear drive component 42.

[0033] The rotary drive component 44 can be a small motor, such as a permanent magnet synchronous motor, mounted on the second mounting component 43 and able to move together with it. The third mounting component 45 is a cover plate structure, covering the end of the rotary drive component 44 away from the placement platform 10, and one side is fixed to the second mounting component 43 by bolts. The adjusting component 46 is located between the third mounting component 45 and the linear drive component 42, and its side abutting the third mounting component 45 is an inclined surface. The adjusting component 46 is bolted to the second mounting component 43, and its position can be adjusted by rotating the bolts, thereby abutting the third mounting component 45 and adjusting the height of the third mounting component 45 relative to the placement platform 10. The corresponding third mounting component 45 is provided with an adjustment hole 451 for adjusting the position of the screw component.

[0034] The abrasive assembly 50 includes an abrasive component 51 and a fixing component 52. The abrasive component 51 is a circular grinding wheel, and the fixing component 52 can be a bolt, one end of which passes through the abrasive component 51 and through the third mounting component 45 to connect to the output shaft of the rotary drive component 44, thus fixing the abrasive component 51 to the rotary drive component 44. When the rotary drive component 44 is working, it drives the abrasive component 51 to rotate, polishing the outer wall of the sampling needle passing through the grinding channel 47.

[0035] See Figure 3 , Figure 4 and Figure 5 The clamping assembly 60 includes a clamping base 61, a cover 62, a connector 63, a screwing component 64, and a spring 65. The clamping base 61 is connected to the drive rotating end of the rotary drive assembly 30 and has an arc-shaped placement groove 611 for placing one end of the sampling needle 80 to be ground. The shape of the arc-shaped placement groove 611 is adapted to the outer diameter of the sampling needle, allowing for better positioning of the sampling needle. One end of the cover 62 is movably connected to the clamping base 61 and is used to cover the sampling needle 80 to be ground. The corresponding clamping base 61 has a first sleeve rod 612 for the cover 62 to be fitted onto, and one end of the cover 62 has a sleeve hole. One end of the connector 63 is movably connected to the clamping base 61, and the corresponding clamping base 61 has a second sleeve rod 613 for the connector 63 to be fitted onto, and one end of the connector 63 has a sleeve hole. The screwing component 64 is a nut, with an appearance as shown in the image. Figure 5As shown, it is used for rotating and sleeved on the connector 63.

[0036] The cover 62 has a through-slot 621. After the cover 62 is placed on the clamping base 61, the connector 63 passes through the through-slot 621 and is fitted by a screwing member 64. The screwing member 64 rotates and abuts against the cover 62 to press the sampling needle 80 to be ground. In addition, a spring 65 is located at the connection between the cover 62 and the clamping base 61. One end is connected to the clamping base 61, and the other end abuts against the cover 62. When the screwing member 64 is released, the spring 65 can automatically open the cover 62 to facilitate the placement and removal of the sampling needle.

[0037] See Figure 1 and Figure 3 The guiding and stabilizing assembly 70 includes a fourth mounting member 71 and a through-hole member 72. One end of the fourth mounting member 71 is mounted on the placement platform 10, and the other end has a through-slot (not shown in the figure). The through-hole member 72 is located in the through-slot and has a through-hole (not shown in the figure) for the sampling needle 80 to be ground to pass through. The inner diameter of the through-hole is adapted to the outer diameter of the sampling needle 80 to be ground. The fourth mounting member 71 can be a metal bracket, fixed to the placement platform 10 by bolts. The through-hole member 72 can be made of plastic, possessing good wear resistance and self-lubricating properties, which can reduce the frictional force when the sampling needle 80 is inserted.

[0038] In this embodiment, the guide and stabilizing component 70 guides and stabilizes the movement of the sampling needle 80 to be ground, ensuring the straightness and stability of the sampling needle 80 during the grinding process and improving the polishing quality. The through-hole of the through-piece 72, fitted to the sampling needle 80, reduces the shaking of the sampling needle 80, avoiding uneven polishing and surface damage caused by shaking, and further improving the precision and quality of the polishing.

[0039] For example, in actual operation, the operator places the sampling needle 80 to be ground in the arc-shaped placement groove 611 of the clamping base 61, covers it with the cover piece 62, and then inserts one end of the connecting piece 63 into the through groove 621 of the cover piece 62. The screwing piece 64 is rotated to press against the cover piece 62 to lock it. It is then determined whether the width of the grinding channel 47 between the two second linear drive components 40 is suitable for the outer diameter of the sampling needle 80 to be ground. If not, the second linear drive components 40 are driven to adjust. It is also ensured that the height of the grinding component 50 is appropriate. If not, the adjusting piece 46 is screwed to adjust the height of the third mounting piece 45. In this way, after adjusting the state of the equipment, it is started.

[0040] In addition, the first linear drive assembly 20 reciprocates along a certain path corresponding to the length of the sampling needle 80 to be ground. During the reciprocating motion of the first linear drive assembly 20, the rotary drive assembly 30 continuously drives the sampling needle 80 to be ground to rotate, and the two abrasive parts 51 of the two abrasive assemblies 50 continuously rotate at the same speed but in opposite directions. Correspondingly, the outer wall of one sampling needle 80 is polished twice based on the reciprocating motion.

[0041] The implementation principle of this embodiment is as follows: This automatic polishing equipment achieves automated polishing of the outer wall of a medical sampling needle through the coordinated work of its components. The first linear drive component 20 and the rotary drive component 30 cause the sampling needle to perform linear reciprocating motion and rotary motion, while the second linear drive component 40 and the abrasive component 50 polish the outer wall of the sampling needle. Compared with traditional manual polishing and general polishing equipment, this equipment improves polishing efficiency, ensures polishing accuracy and consistency, and solves the problems of low efficiency, poor accuracy, and unstable quality existing in the prior art. It can meet the quality control and mass production requirements of reusable sampling needles, providing strong support for the manufacturing of sampling needles in the medical testing field.

[0042] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. An automatic polishing device for the outer wall of a medical sampling needle, characterized in that, include: Placement platform (10); A first linear drive assembly (20) is disposed on the placement stage (10); A rotary drive assembly (30) is sleeved on the first linear drive assembly (20) and is used to perform linear reciprocating motion with the drive of the first linear drive assembly (20); The second linear drive assembly (40) is arranged in two opposite directions on the placement platform (10) and is perpendicular to the driving direction of the first linear drive assembly (20); Two abrasive components (50) are provided, which are respectively arranged between two second linear drive components (40). A grinding channel (47) is formed between the two abrasive components (50) for the sampling needle (80) to be ground to reciprocate through. The clamping assembly (60) is disposed on the rotary drive assembly (30) near the rotating ends of the two abrasive assemblies (50), for clamping the sampling needle (80) to be abraded, for rotating with the drive of the rotary drive assembly (30), and for reciprocating linear motion with the drive of the first linear drive assembly (20).

2. The automatic polishing device for the outer wall of a medical sampling needle according to claim 1, characterized in that, Also includes: The guide stabilizing component (70) is disposed at both ends of the two abrasive components (50) and at both ends of the abrasion channel (47) for the sampling needle (80) to be abraded to reciprocate through.

3. The automatic polishing device for the outer wall of a medical sampling needle according to claim 2, characterized in that, The guiding and stabilizing component (70) includes: The fourth mounting component (71) has one end set on the placement platform (10) and the other end set with a through groove; A through-hole (72) is located in the through-groove, and a through-hole is provided on the through-hole (72) for the sampling needle (80) to be ground to pass through, the inner diameter of the through-hole being adapted to the outer diameter of the sampling needle (80).

4. The automatic polishing device for the outer wall of a medical sampling needle according to claim 1, characterized in that, The second linear drive assembly (40) includes: The first mounting component (41) is disposed on the placement platform (10); A linear drive component (42) is disposed on the side of the first mounting component (41); The second mounting part (43) is abutted and fixed on the linear drive (42) and is used to perform linear movement with the drive of the linear drive (42); A rotary drive (44) is disposed on the second mounting member (43) for moving together with the second mounting member (43); The third mounting component (45) is covered at the end of the rotary drive component (44) away from the placement platform (10), and one side of the third mounting component (45) is fixed on the second mounting component (43); An adjusting component (46) is located between the third mounting component (45) and the linear drive component (42), and is used to connect to the second mounting component (43). It is used to abut against the third mounting component (45) and adjust the height of the third mounting component (45) relative to the placement platform (10). The corresponding third mounting component (45) is provided with an adjusting hole (451) for adjusting the position of the screw component.

5. The automatic polishing device for the outer wall of a medical sampling needle according to claim 4, characterized in that, The abrasive assembly (50) includes: A frosted part (51) is located at the end of the third mounting part (45) away from the rotary drive (44) and is used to rotate with the drive of the rotary drive (44); The fixing member (52) has one end through the frosted part (51) and through the third mounting member (45) and is connected to the rotary drive member (44) to fix the frosted part (51) to the rotary drive member (44).

6. The automatic polishing device for the outer wall of a medical sampling needle according to claim 1, characterized in that, The clamping assembly (60) includes: The clamping base (61) is connected to the drive rotation end of the rotary drive assembly (30) and is provided with an arc-shaped placement groove (611) for placing one end of the sampling needle (80) to be ground. The cover (62) is movably connected to the clamping base (61) at one end and is used to cover the sampling needle (80) to be ground. A first sleeve rod (612) is provided on the clamping base (61) for the cover (62) to be sleeved. The connector (63) is movably connected to the clamping base (61) at one end, and the clamping base (61) is provided with a second sleeve rod (613) for the connector (63) to be sleeved on. A screwing component (64) is used to rotate and fit onto the connecting component (63). The cover component (62) is provided with a through groove (621). After the cover component (62) covers the clamping base (61), the connecting component (63) passes through the through groove (621) and is fitted by the screwing component (64). The screwing component (64) rotates and abuts against the cover component (62) to press the sampling needle (80) to be ground.

7. The automatic polishing device for the outer wall of a medical sampling needle according to claim 6, characterized in that, The clamping assembly (60) further includes: A spring member (65) is located at the connection between the cover member (62) and the clamping base (61), with one end connected to the clamping base (61) and the other end used to abut against the cover member (62).

8. The automatic polishing device for the outer wall of a medical sampling needle according to claim 4, characterized in that, The side of the adjusting member (46) that abuts against the third mounting member (45) is an inclined surface.

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