Grinding adaptive assembly and grinding method

Abstract

The grinding adaptive assembly comprises a mounting base, a grinding pipe, a pipe cover and an elastic piece, the mounting base is provided with a plurality of mounting holes, the mounting holes are evenly distributed in the circumferential direction of the mounting base, and an outer connecting hole is formed in the middle of the mounting base and used for being externally connected with a vibration exciter; a clamped part is arranged on the peripheral wall of the grinding pipe, the grinding pipe is arranged in the mounting hole, the clamped part abuts against the mounting base, a pipe opening of the grinding pipe is arranged upwards, a pipe body below the clamped part is in threaded connection with the mounting hole, and a first buffering concave part is arranged at the inner bottom of the grinding pipe; the pipe cover comprises an outer cover and an inner cylinder, a gap is formed between the outer cover and the inner cylinder, a sealing ring is embedded in the gap, the inner peripheral wall of the outer cover is in threaded connection with the outer peripheral wall of the pipe opening, the inner cylinder is inserted into the pipe opening, the sealing ring abuts against the edge of the upper end of the pipe opening, and the inner cylinder is provided with a second buffering concave part; and the elastic piece is arranged between the clamped part and the mounting seat.

Description

Technical Field

[0001] The present invention relates to the field of grinding technology, and in particular to a grinding adapter component and a grinding method. Background Art

[0002] Grinding tubes are widely used in laboratories. They are mainly used to grind or crush solid samples for further chemical analysis, biological experiments or other experimental processing.

[0003] At present, the commonly used grinding tube is an ordinary covered grinding tube, which is generally fixed to the vibrator by an additional fixing structure, which increases the overall weight of the moving part during vibration, generates more vibration and noise, and sometimes causes clamping slippage, which is not conducive to the experimental process and inconvenient to use. In addition, such a fixing structure generally needs to fix multiple grinding tubes, and often requires a large torque to cover and open the tube, which is difficult to achieve in automated equipment. The present invention is aimed at this problem, and through the cooperation between a single tube and an adapter, the force is dispersed, reducing the difficulty of automated loading and unloading. Summary of the invention

[0004] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention provides a grinding adapter assembly that can overcome the defects of inconvenient clothing clamping and slipping during grinding.

[0005] The present invention also provides a grinding method using the grinding adapter assembly.

[0006] According to a first aspect of the present invention, a grinding adapter assembly includes a mounting seat, a grinding tube, a tube cover and an elastic member, the mounting seat is provided with a plurality of mounting holes, the plurality of mounting holes are evenly distributed around the circumference of the mounting seat, an external connection hole is provided in the middle of the mounting seat, the external connection hole is used for external connection to an exciter; a clamped portion is provided on the outer peripheral wall of the grinding tube, the grinding tube is placed in the mounting hole, the clamped portion abuts against the mounting seat, the tube mouth of the grinding tube is arranged upward, and the tube body below the clamped portion is threadedly connected to the mounting hole, The inner bottom of the grinding tube is provided with a first buffer recess; the tube cover comprises an outer cover and an inner tube, there is a gap between the outer cover and the inner tube, a sealing ring is embedded in the gap, the inner circumferential wall of the outer cover is threadedly connected with the outer circumferential wall of the pipe mouth, the inner tube is inserted into the pipe mouth, the sealing ring abuts against the upper end edge of the pipe mouth, and the inner tube is provided with a second buffer recess; the elastic member is arranged between the clamped part and the mounting seat, one end of the elastic member abuts against the mounting seat, and the other end of the elastic member abuts against the clamped part.

[0007] A grinding adapter assembly according to an embodiment of the present invention has at least the following beneficial effects: the provided mounting seat combines the grinding tube into a whole to form a grinding adapter assembly, which has a simple structure and is easy to use. The threaded connection structure thereof improves the stability during vibration grinding and prevents the grinding tube from slipping during vibration. The cooperation between the provided first buffer recess and the provided second buffer recess can reduce the impact force of the grinding ball on the grinding tube during movement. The lateral component force generated when the grinding ball hits the first buffer recess or the second buffer recess can act on the ground sample. The first buffer recess or the second buffer recess is arranged relative to each other in the vertical direction, so that the impact force of grinding is always constrained in the space of the grinding tube, ensuring that the vibration energy does not overflow and improving the grinding effect. The provided elastic member can fill the gap between the grinding tube and the clamped portion. The extrusion deformation and friction force of the elastic member can make the grinding tube firmly connected to the clamped portion, so that the entire adapter assembly can improve the assembly accuracy and device operation stability in automated or semi-automated scenarios, which helps to improve work efficiency and improve the grinding effect.

[0008] According to some embodiments of the present invention, the mounting seat includes a support plate and a mounting platform, and the mounting platform is provided with a plurality of mounting platforms, which are evenly distributed around the circumference of the support plate, and the mounting platform protrudes out of the support plate. The mounting hole is vertically through-hole arranged on the mounting platform, and the elastic member is arranged between the mounting platform and the clamped portion, and the clamped portion is used to abut against the mounting platform. The setting of the mounting platform can avoid interference between the robot and the support plate, and can improve the strength of the threaded connection structure.

[0009] According to some embodiments of the present invention, two ends of the mounting platform protrude out of two end plate surfaces of the mounting seat respectively.

[0010] According to some embodiments of the present invention, a chamfered structure is provided at the connection between the mounting platform and the support plate, and the provided chamfered structure reduces stress concentration at the connection between the mounting platform and the support plate, thereby improving structural strength.

[0011] According to some embodiments of the present invention, the clamped portion is configured to be annular, and the clamped portion is protruded on the outer peripheral wall of the grinding tube, with a uniform structure, which is convenient for clamping and installation.

[0012] According to some embodiments of the present invention, the outer edge of the clamped portion is provided with anti-slip grooves, and the anti-slip grooves are provided to facilitate the clamped portion to be clamped by a robot.

[0013] According to some embodiments of the present invention, the first buffer recess and the second buffer recess are both configured to be conical, and the cone has a strong rebound ability, thereby improving the grinding efficiency.

[0014] According to some embodiments of the present invention, the top angle of the cone is between 60° and 120°.

[0015] According to some embodiments of the present invention, the grinding tube is narrowed from top to bottom, and the narrowed structure facilitates the grinding tube to be inserted into the mounting hole.

[0016] A grinding method according to a second aspect of an embodiment of the present invention, using the grinding adapter assembly, comprises the following steps:

[0017] S1, sleeve the outer connection hole of the mounting seat onto the output shaft of the reciprocating vibrator;

[0018] S2, loading the grinding tube with grinding balls and the material to be ground, then screwing the tube cover onto the grinding tube, and then sleeve the elastic member onto the outer peripheral wall of the grinding tube so that the elastic member is placed at the lower end of the clamped portion;

[0019] S3, using a manipulator to clamp the clamped portion of the grinding tube in S2, and screwing the grinding tube in S2 into the mounting hole on the mounting seat to fix it;

[0020] S4, start the reciprocating vibrator for vibration grinding.

[0021] A grinding method according to an embodiment of the present invention has at least the following beneficial effects: the method is used for grinding, which improves the installation stability of the grinding tube 200 during grinding and helps improve the grinding efficiency; the mounting seat combines the grinding tube into a whole to form a grinding adapter assembly, which has a simple structure and is easy to use; the threaded connection structure improves the stability during vibration grinding and prevents the grinding tube from slipping during vibration; the first buffer recess and the second buffer recess cooperate to reduce the impact force of the grinding ball on the grinding tube during movement; the lateral force generated when the grinding ball hits the first buffer recess or the second buffer recess can act on the ground sample; the first buffer recess or the second buffer recess is arranged relative to each other in the vertical direction, so that the impact force of grinding is always bound in the space of the grinding tube, ensuring that the vibration energy does not overflow and improving the grinding effect; the elastic member can fill the gap between the grinding tube and the clamped part; the extrusion deformation and friction of the elastic member can make the grinding tube and the clamped part firmly connected, so that the entire adapter assembly can improve the assembly accuracy and device operation stability in an automated or semi-automated scenario, which helps to improve work efficiency and improve the grinding effect.

[0022] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0024] Figure 1 It is a schematic structural diagram of a grinding adapter assembly according to an embodiment of the present invention;

[0025] Figure 2 for Figure 1 An exploded view of the grind adapter assembly is shown;

[0026] Figure 3 for Figure 1 A cross-sectional view of a grind adapter assembly is shown.

[0027] Mounting seat 100, mounting hole 110, external connection hole 120;

[0028] Support plate 130, mounting platform 140, chamfering structure 150;

[0029] The grinding tube 200, the clamped portion 210, the first buffer recess 220, and the tube mouth 230;

[0030] Tube cover 300, outer cover 310, inner tube 320, second buffer recess 321, gap 330, sealing ring 331;

[0031] Elastic member 400. DETAILED DESCRIPTION

[0032] Embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0033] In the description of the present invention, it should be understood that descriptions involving orientations, such as up, down, front, back, left, right, etc., and orientations or positional relationships indicated are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0034] In the description of the present invention, "several" means one or more, "more" means two or more, "greater than", "less than", "exceed" etc. are understood as not including the number itself, and "above", "below", "within" etc. are understood as including the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0035] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0036] Reference Figures 1 to 3 The present invention discloses a grinding adapter assembly, including a mounting seat 100, a grinding tube 200, a tube cover 300 and an elastic member 400. The mounting seat 100 is provided with a plurality of mounting holes 110. The mounting seat 100 is circularly arranged. The mounting seat 100 can also be squarely arranged or elliptically arranged. The plurality of mounting holes 110 are evenly distributed around the circumference of the mounting seat 100. An external connection hole 120 is arranged in the middle of the mounting seat 100. The external connection hole 120 is used for externally connecting an exciter.

[0037] A clamped portion 210 is provided on the outer peripheral wall of the grinding tube 200, the grinding tube 200 is placed in the mounting hole 110, the clamped portion 210 abuts against the mounting seat 100, the pipe mouth 230 of the grinding tube 200 is set upward, the tube body below the clamped portion 210 is threadedly connected to the mounting hole 110, and a first buffer recess 220 is provided at the inner bottom of the grinding tube 200.

[0038] The tube cover 300 includes an outer cover 310 and an inner tube 320, and there is a gap 330 between the outer cover 310 and the inner tube 320, in which a sealing ring 331 is embedded, the inner circumferential wall of the outer cover 310 is threadedly connected to the outer circumferential wall of the tube mouth 230, the inner tube 320 is inserted into the tube mouth 230, the sealing ring 331 abuts against the upper end edge of the tube mouth 230, and the inner tube 320 is provided with a second buffer recess 321.

[0039] The elastic member 400 is disposed between the clamped portion 210 and the mounting seat 100 , one end of the elastic member 400 abuts against the mounting seat 100 , and the other end of the elastic member 400 abuts against the clamped portion 210 .

[0040] It should be noted that, at present, the grinding tube 200 used in the testing laboratory is mainly made of plastic, the bottom of the grinding tube 200 is flat, and the tube cover 300 also has a flat inner bottom, so that during the vertical reciprocating vibration, the grinding ball has a strong impact force on the bottom of the grinding tube 200. Therefore, a certain taper is set at the inner bottom of the grinding tube 200 to facilitate the concentration of the sample, while reducing the impact caused by the reciprocating grinding particles and improving the grinding effect. In the past, the grinding tube had a smooth and flat exterior and no structure for connecting to the vibrator. It was necessary to add an additional fixed structure at the location where the vibrator was placed, which increased the overall weight of the moving structure, generated more vibration and noise, and affected the life of the entire grinding device. At the same time, ordinary grinding tubes did not have an independent clamping structure. When the cover was tightened on an automated or semi-automated vibrator, clamping slippage would occur. Because clamping is generally performed by a robot, there is a high probability of slippage between the robot and the smooth tube wall. In addition, the top surface of the general tube cover 300 is flat and has no effective buffer structure. A thicker structure is required to provide impact resistance, which increases the overall weight of the moving structure and brings additional vibration.

[0041] It should be understood that the diameter of the mounting platform 140 is slightly smaller than the diameter of the clamped portion 210 to prevent the clamping claws from interfering with the portion 110 when grasping the clamped portion 210. The elastic member 400 and the sealing ring 331 at the tube cover 300 are usually pre-installed on the tube body and the tube cover 300. The function of the elastic member 400 is to provide a buffer to prevent the grinding tube 200 from slipping out of the mounting seat 100.

[0042] In some embodiments, the grinding tube 200 and the tube cover 300 are made of heat-resistant materials such as metal or ceramics, so that the sample can be ground in a wider temperature processing range.

[0043] It should be understood that the mounting seat 100 is provided to combine the grinding tube 200 into a whole to form a grinding adapter assembly, which has a simple structure and is easy to use. Its threaded connection structure improves the stability during vibration grinding and prevents the grinding tube 200 from slipping during vibration. The first buffer recess 220 and the second buffer recess 321 are provided to cooperate to reduce the impact force of the grinding ball on the grinding tube 200 during movement. The lateral component force generated when the grinding ball hits the first buffer recess 220 or the second buffer recess 321 can act on the ground sample. The first buffer recess 220 or the second buffer recess 321 can also act on the ground sample. The recess 220 or the second buffer recess 321 is arranged vertically opposite to each other, so that the impact force of grinding is always confined in the space of the grinding tube 200, ensuring that the vibration energy does not overflow and improving the grinding effect. The elastic member 400 can fill the gap between the grinding tube 200 and the clamped part 210. The extrusion deformation and friction force of the elastic member 400 can make the grinding tube 200 and the clamped part 210 firmly connected, so that the entire adapter assembly can improve the assembly accuracy and device operation stability in an automated or semi-automated scenario, which helps to improve work efficiency and improve the grinding effect.

[0044] It should be noted that its threaded connection structure can be differentiated into specifications according to parameters such as different coarseness and number of turns based on the impact force generated by grinding, thereby improving the economy of the grinding tube 200 as a consumable, and the external connection hole of the tube adapter is connected to the structure that provides driving force; the grinding tube 200 and the mounting seat 100 can be made into a split structure, which is convenient for replacing the threaded structure that is worn out due to frequent use, and at the same time can be compatible with grinding tubes 200 of different diameters, enriching the use scenarios of the grinding device and improving the economy of use.

[0045] In some embodiments, after the external connection hole 120 is connected to the main shaft of the exciter, it is locked by screws. The mounting hole 110 arranged inside the mounting platform 140 is a straight hole. There is a gap expanding from top to bottom between the straight hole and the narrowed body of the grinding tube 200. In this way, the connection force between the grinding tube 200 and the mounting hole 110 can be ensured to show a certain step-by-step attenuation from top to bottom. In conjunction with the relatively arranged first buffer recess 220 and the second buffer recess 321, the vibration energy is constrained in the grinding tube 200, so that the grinding efficiency is improved and the grinding is more complete. The relatively lower part of the grinding tube 200 has a larger vibration amplitude, and the relatively upper part of the grinding tube 200 has a smaller vibration amplitude, which not only ensures the secondary vibration, but also ensures the connection stability.

[0046] Reference Figure 2 and Figure 3The mounting base 100 includes a support plate 130 and a mounting platform 140. The support plate 130 is arranged in a circular shape, and the support plate 130 can also be arranged in a square shape or an elliptical shape. The mounting platform 140 is provided with a plurality of mounting platforms 140, and the plurality of mounting platforms 140 are evenly distributed around the circumference of the support plate 130. The mounting platform 140 protrudes out of the support plate 130. The mounting hole 110 is vertically through-set on the mounting platform 140. The elastic member 400 is arranged between the mounting platform 140 and the clamped portion 210. The clamped portion 210 is used to abut against the mounting platform 140. The mounting platform 140 can avoid interference between the manipulator and the support plate 130, and can improve the strength of the threaded connection structure. It can be understood that due to the vertical length setting of the mounting platform 140, there are more threads in its mounting hole 110, the threaded connection parts are in contact more, the connection is tighter, and the connection stability and structural strength are higher.

[0047] In some embodiments, the two ends of the mounting platform 140 protrude from the two end plate surfaces of the mounting seat 100 respectively, and a chamfer structure 150 is provided at the connection between the mounting platform 140 and the support plate 130. The provided chamfer structure 150 reduces the stress concentration at the connection between the mounting platform 140 and the support plate 130, and improves the structural strength. The clamped portion 210 is provided in an annular shape, and the clamped portion 210 is convexly provided on the outer peripheral wall of the grinding tube 200, with a uniform structure, which is convenient for clamping and installation. The outer edge of the clamped portion 210 is provided with anti-slip grooves, and the provided anti-slip grooves facilitate the clamped portion 210 to be clamped by the robot.

[0048] Reference Figure 3 The first buffer recess 220 and the second buffer recess 321 are both set to be conical, and the cone has a strong rebound ability, which improves the grinding efficiency. The top angle of the cone is between 60° and 120°. The grinding tube 200 is narrowed from top to bottom, and the narrowed structure facilitates the insertion of the grinding tube 200 into the mounting hole 110.

[0049] The present invention also discloses a grinding method, which uses the grinding adapter assembly in the above embodiment and includes the following steps:

[0050] S1, sleeve the outer connection hole 120 of the mounting base 100 onto the output shaft of the reciprocating exciter;

[0051] S2, loading the grinding tube 200 with grinding balls and the material to be ground, then screwing the tube cover 300 onto the grinding tube 200, and then sleeve the elastic member 400 onto the outer peripheral wall of the grinding tube 200, so that the elastic member 400 is placed at the lower end of the clamped portion 210;

[0052] S3, using a robot to clamp the clamped portion 210 of the grinding tube 200 in S2, and screwing the grinding tube 200 in S2 into the mounting hole 110 on the mounting seat 100 to fix it;

[0053] S4, start the reciprocating vibrator for vibration grinding.

[0054] The present method is used for grinding, which improves the installation stability of the grinding tube 200 during grinding and helps to improve the grinding efficiency. The mounting seat 100 combines the grinding tube 200 into a whole to form a grinding adapter assembly, which has a simple structure and is easy to use. The threaded connection structure improves the stability during vibration grinding and prevents the grinding tube 200 from slipping during vibration. The first buffer recess 220 and the second buffer recess 321 cooperate to reduce the impact force of the grinding ball on the grinding tube 200 during movement, and the lateral separation generated when the grinding ball hits the first buffer recess 220 or the second buffer recess 321. The force can also act on the ground sample. The first buffer recess 220 or the second buffer recess 321 is arranged vertically opposite to each other, so that the impact force of grinding is always confined in the space of the grinding tube 200, ensuring that the vibration energy does not overflow and improving the grinding effect. The elastic member 400 can fill the gap between the grinding tube 200 and the clamped part 210. The extrusion deformation and friction force of the elastic member 400 can make the grinding tube 200 and the clamped part 210 firmly connected, so that the entire adapter assembly can improve the assembly accuracy and device operation stability in an automated or semi-automated scenario, which helps to improve work efficiency and improve the grinding effect.

[0055] The embodiments of the present invention are described in detail above with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of ordinary technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. A grinding adapter assembly, characterized in that: include: A mounting seat (100) is provided with a plurality of mounting holes (110), wherein the plurality of mounting holes (110) are evenly distributed around the circumference of the mounting seat (100), and an external connection hole (120) is provided in the middle of the mounting seat (100), wherein the external connection hole (120) is used for externally connecting an exciter; A grinding tube (200), wherein the outer peripheral wall is provided with a clamped portion (210), the grinding tube (200) is placed in the mounting hole (110), the clamped portion (210) abuts against the mounting seat (100), the tube mouth (230) of the grinding tube (200) is arranged upward, the tube body below the clamped portion (210) is threadedly connected to the mounting hole (110), and the inner bottom of the grinding tube (200) is provided with a first buffer recess (220); The pipe cover (300) comprises an outer cover (310) and an inner tube (320), wherein a gap (330) is provided between the outer cover (310) and the inner tube (320), a sealing ring (331) is embedded in the gap (330), an inner peripheral wall of the outer cover (310) is threadedly connected to an outer peripheral wall of the pipe mouth (230), the inner tube (320) is inserted into the pipe mouth (230), the sealing ring (331) abuts against the upper end edge of the pipe mouth (230), and the inner tube (320) is provided with a second buffer recess (321); An elastic member (400) is arranged between the clamped portion (210) and the mounting seat (100), one end of the elastic member (400) abuts against the mounting seat (100), and the other end of the elastic member (400) abuts against the clamped portion (210).

2. A grinding adapter assembly according to claim 1, characterized in that: The mounting seat (100) comprises a support plate (130) and a mounting platform (140), wherein the mounting platform (140) is provided with a plurality of mounting platforms (140) which are evenly distributed around the circumference of the support plate (130), the mounting platform (140) protrudes out of the support plate (130), the mounting hole (110) is vertically through-set on the mounting platform (140), the elastic member (400) is provided between the mounting platform (140) and the clamped portion (210), and the clamped portion (210) is used to abut against the mounting platform (140).

3. A grinding adapter assembly according to claim 2, characterized in that: The two ends of the mounting platform (140) respectively protrude from the two end plate surfaces of the mounting seat (100).

4. A grinding adapter assembly according to claim 2, characterized in that: A chamfer structure (150) is provided at the connection between the mounting platform (140) and the support plate (130).

5. The grinding adapter assembly according to claim 1, characterized in that: The clamped portion (210) is arranged in a ring shape, and the clamped portion (210) is protrudingly arranged on the outer peripheral wall of the grinding tube (200).

6. The grinding adapter assembly according to claim 1, characterized in that: The outer edge of the clamped portion (210) is provided with anti-slip patterns.

7. The grinding adapter assembly according to claim 1, characterized in that: The first buffer recess (220) and the second buffer recess (321) are both configured to be conical.

8. A grinding adapter assembly according to claim 7, characterized in that: The top angle of the cone is between 60° and 120°.

9. The grinding adapter assembly according to claim 1, characterized in that: The grinding tube (200) is arranged to be narrowed from top to bottom.

10. A grinding method, characterized in that: The grinding adapter assembly according to claim 1 is applied, comprising the following steps: S1, sleeve the external connection hole (120) of the mounting seat (100) onto the output shaft of a reciprocating vibrator; S2, loading the grinding tube (200) with grinding balls and the material to be ground, then screwing the grinding tube (200) with the tube cover (300), and then sleeve the elastic member (400) on the outer peripheral wall of the grinding tube (200) so that the elastic member (400) is placed at the lower end of the clamped portion (210); S3, using a robot to clamp the clamped portion (210) of the grinding tube (200) in S2, and screwing the grinding tube (200) in S2 into the mounting hole (110) on the mounting seat (100) to fix it; S4, start the reciprocating vibrator for vibration grinding.

Images