Drill bit cutting tooth mechanical parameter measuring device and measuring method

Abstract

The invention relates to the technical field of cutting detection, and discloses a drill bit cutting tooth mechanical parameter measuring device and method. The device comprises a platform assembly, a measuring assembly, a clamping assembly and a cutting assembly, the platform assembly is provided with a bottom platform, an upper platform and a movable platform, the upper platform is fixed above the bottom platform through a fixed sliding rod, the movable platform is arranged on the fixed sliding rod in a sliding mode, and the movable platform is located between the bottom platform and the upper platform; the clamping assembly is fixed to the bottom platform and used for clamping a part to be cut. The cutting assembly is fixed to the lower portion of the moving platform and used for cutting the part to be cut. The measuring assembly is provided with a force sensor and a displacement sensor, the force sensor is fixed between the cutting assembly and the moving platform, the displacement sensor is fixed on one side of the cutting assembly, and the tail end of the displacement sensor is of a roller structure.

Description

Technical Field

[0001] The present application relates to the field of cutting detection technology, and in particular to a device and method for measuring mechanical parameters of drill cutting teeth. Background Art

[0002] In the field of oil extraction, as the formation deepens and the underground environment becomes more complex, it is particularly important to accurately measure the force on the drill bit. The force characteristics of the cutter when cutting rock directly affect the drilling efficiency and cost. By studying the force characteristics of the cutter through simulation experiments, the tooth shape design can be optimized, the drilling speed can be increased, and the drilling cost can be reduced.

[0003] However, in existing experiments, the cutting depth is difficult to control accurately, and the uneven rock surface and the horizontal error of the experimental platform lead to inaccurate measurement results. In addition, the problem of the cutting point deviating from the center of the force sensor acquisition will also introduce errors and reduce the credibility of the data. These problems limit the effectiveness of the cutter rock breaking experiment. In summary, it is difficult for the relevant technology to accurately control the cutting depth in the cutter cutting experiment, and the cutting point deviates from the center of the sensor, resulting in large measurement errors, and the credibility of the experimental data is insufficient. Summary of the invention

[0004] A device and method for measuring the mechanical parameters of drill cutting teeth provided by an embodiment of the present invention at least solve the problems in the related art that it is difficult to accurately control the cutting depth in cutting tooth cutting experiments, and the cutting point deviates from the center of the sensor, resulting in large measurement errors and insufficient credibility of experimental data.

[0005] According to a first aspect of an embodiment of the present invention, there is provided a device for measuring mechanical parameters of a drill bit cutting tooth, comprising a platform component, a measuring component, a clamping component and a cutting component;

[0006] The platform assembly is provided with a bottom platform, an upper platform and a mobile platform, wherein the upper platform is fixed above the bottom platform by a fixed slide bar, the mobile platform is slidably arranged on the fixed slide bar, and the mobile platform is located between the bottom platform and the upper platform;

[0007] The clamping assembly is fixed on the bottom platform and is used to clamp the workpiece to be cut;

[0008] The cutting assembly is fixed below the mobile platform and is used for cutting the workpiece to be cut;

[0009] The measuring component is provided with a force sensor and a displacement sensor. The force sensor is fixed between the cutting component and the moving platform, and the displacement sensor is fixed on one side of the measuring component.

[0010] According to a second aspect of an embodiment of the present invention, a method for measuring mechanical parameters of a drill bit cutting tooth is provided. The method is applied to a drill bit cutting tooth mechanical parameter measuring device, wherein the drill bit cutting tooth mechanical parameter measuring device is provided with a platform component, a measuring component, a clamping component and a cutting component, and the measuring component includes a force sensor and a displacement sensor; the method includes:

[0011] Fixing the workpiece to be cut on the clamping assembly so that the workpiece to be cut is located directly below the cutting assembly and the displacement sensor;

[0012] Controlling the moving platform of the platform assembly to move downward until the cutting assembly cuts into the workpiece to be cut and the displacement sensor contacts the upper side of the workpiece to be cut;

[0013] Controlling the clamping assembly to move along the cutting direction corresponding to the workpiece to be cut, so that the cutting assembly cuts the workpiece to be cut, and at the same time collecting the mechanical data generated by the force sensor and the displacement data generated by the displacement sensor in real time during the cutting process;

[0014] Cutting tooth mechanical parameter measurement data is generated based on the mechanical data and the displacement data.

[0015] Beneficial effects of the embodiments of the present invention:

[0016] The drill bit cutting tooth mechanical parameter measuring device provided by the embodiment of the present invention solves the problem in the prior art that the cutting depth is difficult to accurately control and the cutting point deviates from the center of the sensor, resulting in a large measurement error, by accurately adjusting the alignment of the displacement sensor and the cutting tooth and the position of the cutting tooth and the force sensor. Specifically, the displacement sensor and the cutting tooth can be aligned and adjusted before cutting begins, so that the bottom end of the displacement sensor and the lowest point of the cutting tooth circular surface are in the same horizontal plane. This design ensures that the value recorded by the displacement sensor can accurately reflect the actual cutting depth of the cutting tooth, thereby effectively avoiding measurement errors. Before cutting begins, the contact point between the displacement sensor and the cutting material is set to the initial cutting depth, and the starting point is ensured to be accurate through the numerical display, thereby ensuring the consistency and reliability of the measurement. In addition, the roller design is adopted at the end of the displacement sensor, which can reduce the influence of friction on the measured value, avoid damage to the displacement sensor or data deviation caused by friction, thereby extending the service life of the displacement sensor and ensuring the accuracy of the measurement. In summary, based on the above-mentioned measuring device, by accurately controlling the cutting depth, ensuring the alignment of the sensor and the cutting tooth, and optimizing the structural design of the displacement sensor, the measurement accuracy and reliability of the mechanical parameters of the cutting tooth are greatly improved, and the problems of inaccurate cutting depth control and large measurement errors in the prior art are solved, which has significant technical advantages.

[0017] The details of one or more embodiments of the invention are set forth in the following drawings and description so that other features, objects, and advantages of the invention are more readily apparent. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the prior art descriptions. Obviously, the drawings described below are only some embodiments of the present invention, and for ordinary technicians in this field, other embodiments can be obtained based on these drawings without creative work.

[0019] Figure 1 It is a structural schematic diagram of a drill bit cutting tooth mechanical parameter measuring device provided by an embodiment of the present invention.

[0020] Figure 2 It is a schematic structural diagram of a cutting assembly provided in an embodiment of the present invention.

[0021] Figure 3 It is a structural schematic diagram of a clamping assembly provided by an embodiment of the present invention.

[0022] Figure 4 It is a structural schematic diagram of a second slide provided in an embodiment of the present invention.

[0023] Figure 5 It is a structural schematic diagram of a positioning plate provided in an embodiment of the present invention.

[0024] Figure 6 It is a flow chart of a method for measuring mechanical parameters of a drill cutting tooth provided by an embodiment of the present invention.

[0025] In the figure: 1. bottom platform; 2. upper platform; 3. mobile platform; 4. fixed slide rod; 5. workpiece to be cut; 6. force sensor; 7. displacement sensor; 8. upper fixed plate; 9. lower fixed plate; 10. L-shaped mounting plate; 11. cutting fixture; 12. cutting teeth; 13. oil pump; 14. sensor bracket; 15. first slide; 16. second slide; 17. adjustment plate; 18. storage slot; 19. first screw; 20. first threaded connection block; 21. first drive device; 22. second threaded connection block; 23. second screw; 24. second drive device; 25. clamping screw; 26. operating lever. DETAILED DESCRIPTION

[0026] Embodiments of the present embodiment will be described in more detail below with reference to the accompanying drawings. Although certain embodiments of the present embodiment are shown in the accompanying drawings, it should be understood that the present embodiment can be implemented in various forms and should not be construed as being limited to the embodiments set forth herein, which are instead provided for a more thorough and complete understanding of the present embodiment. It should be understood that the drawings and embodiments of the present embodiment are only for exemplary purposes and are not intended to limit the scope of protection of the present embodiment.

[0027] In many industries such as oil extraction, with the continuous increase in mining depth and the increasing complexity of the underground environment, it is particularly important to accurately measure the stress conditions of the drill bit in the formation. Especially in the rock breaking operation of the drill bit, the force when the cutting teeth contact the rock directly affects the drilling efficiency and operation stability. Therefore, studying the stress conditions of different cutting teeth when cutting various types of rocks, especially simulating this process in an experimental environment, is crucial to optimizing drilling conditions and improving drill bit performance. By measuring the force data of the cutting teeth through simulation experiments and selecting the optimal tooth shape design, the drilling speed of the drill bit can be effectively increased while reducing drilling costs. These experimental results are of great reference value for the actual rock breaking force analysis of the drill bit.

[0028] However, there are many challenges in the existing cutter force test. First, the rock surface is generally uneven, and the horizontality of the experimental platform is difficult to fully guarantee, which leads to low control accuracy of the cutting depth. Especially in experiments, the cutting depth is usually small, and this error is often magnified in the experiment, causing great interference to the experimental results, thus affecting the reliability of the data.

[0029] In addition, the offset between the cutting tooth and the force sensor also significantly affects the measurement accuracy. In actual tests, since the cutting point of the cutting tooth deviates from the acquisition center of the force sensor, there is a large deviation between the force data recorded by the force sensor and the actual value, which affects the accuracy and credibility of the measurement results.

[0030] In order to solve the above problems, an embodiment of the present invention provides a device and method for measuring the mechanical parameters of drill bit cutting teeth. By accurately controlling the cutting depth, ensuring the alignment of the sensor and the cutting tooth, and optimizing the structural design of the displacement sensor, the measurement accuracy and reliability of the mechanical parameters of the cutting teeth are greatly improved, and the problems of inaccurate cutting depth control and large measurement errors in the prior art are solved, which has significant technical advantages.

[0031] Figure 1 It is a structural schematic diagram of a drill bit cutting tooth mechanical parameter measuring device provided by an embodiment of the present invention. Figure 2 It is a schematic structural diagram of a cutting assembly provided in an embodiment of the present invention. Figure 3 It is a structural schematic diagram of a clamping assembly provided by an embodiment of the present invention. Figure 4It is a structural schematic diagram of a second slide provided in an embodiment of the present invention. Figure 5 It is a structural schematic diagram of a positioning plate provided in an embodiment of the present invention.

[0032] like Figures 1 to 5 As shown, the drill bit cutting tooth mechanical parameter measuring device provided by the embodiment of the present invention includes a platform component, a measuring component, a clamping component and a cutting component.

[0033] The platform assembly is provided with a bottom platform 1, an upper platform 2 and a mobile platform 3. Among them, the upper platform 2 is fixed above the bottom platform 1 through a fixed slide bar 4, and the mobile platform 3 is slidably arranged on the fixed slide bar 4, and the mobile platform 3 is located between the bottom platform 1 and the upper platform 2.

[0034] In this embodiment, the platform assembly is the basic part of the device, which is used to carry and support other components, ensure the overall stability of the system, and realize position adjustment through the mobile function. Specifically, the bottom platform 1 can provide a support base for the device. The upper platform 2 is fixed above the bottom platform 1 and connected to the fixed slide bar 4, and can be used to install other components and devices such as the oil pump 13. The mobile platform 3 is slidably connected between the fixed slide bars 4 and can move vertically up and down, thereby driving the cutting assembly to adjust its position.

[0035] In practical applications, the fixed slide bar 4 can ensure that the sliding track of the mobile platform 3 is stable and straight, thereby improving the accuracy of the cutting operation. The sliding property of the mobile platform 3 provides the necessary conditions for the dynamic adjustment of the cutting depth, and lays the foundation for the cooperation between the measuring component and the cutting component.

[0036] The clamping assembly is fixed on the bottom platform 1 and is used to clamp the workpiece 5 to be cut; the cutting assembly is fixed below the mobile platform 3 and is used to cut the workpiece 5 to be cut; the measuring assembly is provided with a force sensor 6 and a displacement sensor 7, wherein the force sensor 6 is fixed between the cutting assembly and the mobile platform 3, the displacement sensor 7 is fixed on one side of the cutting assembly, and the end of the displacement sensor 7 is a roller structure.

[0037] In this embodiment, the clamping assembly can be used to stabilize the workpiece 5 to be cut and ensure the position stability of the workpiece 5 during the cutting process. The clamping assembly is fixed on the bottom platform 1 to provide support for the entire cutting experiment. In practical applications, the clamping assembly can prevent the workpiece from being displaced during the cutting process by fixing the position of the workpiece 5 to be cut, thereby ensuring accurate measurement of cutting mechanical parameters. At the same time, the clamping assembly is combined with the platform assembly to achieve precise alignment of the workpiece and the cutting part, providing a basis for subsequent measurements.

[0038] The cutting assembly can be used to perform actual cutting operations on the workpiece 5. It is fixed below the mobile platform 3, and the height adjustment during the cutting process can be controlled by the oil pump 13. In actual applications, the height of the cutting assembly is controlled by the sliding adjustment of the mobile platform 3, realizing dynamic adjustment of the cutting depth.

[0039] The measuring assembly includes a force sensor 6 and a displacement sensor 7, which are used to record the cutting force and cutting depth during the cutting process. The force sensor 6 is installed between the cutting assembly and the mobile platform 3, and is responsible for monitoring the real-time changes in the cutting force. The displacement sensor 7 is located on one side of the measuring assembly and is used to record the actual cutting depth of the cutting tooth 12. In practical applications, the force sensor 6 provides data support for the measurement of cutting mechanical parameters by sensing the cutting force applied by the cutting assembly on the workpiece. The displacement sensor 7 ensures the accuracy and reliability of the depth measurement during the experiment by accurately recording the cutting depth.

[0040] The main function of the force sensor is to measure the mechanical parameters generated during the cutting process. Optionally, the force sensor may include: a strain gauge force sensor, a piezoelectric force sensor, a piezoresistive force sensor, etc. The displacement sensor is used to record information such as the displacement trajectory and cutting depth of the cutting tooth. Optionally, the displacement sensor may include an inductive displacement sensor, etc.

[0041] In actual experiments, the selection of sensors needs to comprehensively consider the cutting force range, displacement change amplitude, measurement environment and experimental objectives. For example, for high-speed cutting experiments, piezoelectric force sensors and laser displacement sensors with fast dynamic response should be selected; while for low-speed, high-precision experiments, strain gauge force sensors and eddy current displacement sensors may be required. By reasonably matching the above sensors, not only can the experimental data be accurately collected, but also more reliable basic data support can be provided for subsequent cutting process optimization.

[0042] According to the embodiment of the present invention, the mobile platform 3 is slidably disposed between the fixed slide bars 4 and combined with the cutting assembly, and the dynamic adjustment of the cutting position can be achieved through the adjustment of the oil pump 13. This cooperative relationship solves the problem that the cutting depth is difficult to accurately control in the traditional cutting device, and provides a guarantee for the accuracy of the experimental data.

[0043] The force sensor 6 in the measuring assembly is installed between the cutting assembly and the mobile platform 3, and can sense the cutting force applied by the cutting teeth 12 in real time during the cutting process; the displacement sensor 7 records the cutting depth. The two work together to achieve high-precision measurement of mechanical parameters. Furthermore, the force sensor 6 and the cutting assembly can be aligned in a center-aligned manner to achieve precise alignment of the cutting assembly and the force sensor 6, thereby preventing the cutting point from deviating from the sensor center.

[0044] Optionally, a sensor bracket 14 is fixed under the mobile platform 3, and the mobile platform 3 is fixedly connected to the force sensor 6 through the sensor bracket 14. The mobile platform 3 is fixedly connected to the force sensor 6 through the sensor bracket 14, which can improve the stability and accuracy of the mechanical parameter measurement. The sensor bracket 14 can ensure the installation stability of the force sensor 6, so that it can accurately record the cutting force applied by the cutting tooth 12 during the cutting process.

[0045] Specifically, the sensor bracket 14 plays a dual role of fixing and conducting: on the one hand, it firmly connects the force sensor 6 between the mobile platform 3 and the cutting assembly to avoid changes in the sensor position due to vibration or mechanical interference during the cutting process, thereby improving the stability of the measurement data; on the other hand, it ensures that the cutting force is transmitted to the sensor through a single clear conduction path, avoiding signal interference or force conduction attenuation, making the measurement results more accurate.

[0046] In addition, the sensor bracket 14 is installed under the mobile platform 3, so that the force sensor 6 can adjust its position together with the sliding of the mobile platform 3, thereby adapting to the cutting requirements of different depths and improving the flexibility of the device. This design not only simplifies the installation and adjustment process of the sensor, but also ensures the compactness of the overall structure and the convenience of operation of the device.

[0047] In an optional embodiment, the cutting assembly is provided with an upper fixing plate 8 and a lower fixing plate 9, and the lower fixing plate 9 is fixed to the lower side of the upper fixing plate 8 by bolts. The upper fixing plate 8 is fixed to the lower side of the force sensor 6 by bolts, and an L-shaped mounting plate 10 is fixed to one side of the lower fixing plate 9 by bolts, and the displacement sensor 7 is fixed to the L-shaped mounting plate 10.

[0048] In this embodiment, the upper fixing plate 8 and the lower fixing plate 9 are connected by bolts to form a fastened whole; the upper fixing plate 8 is located at the lower side of the force sensor 6, and is fixed to the force sensor 6 by bolts, forming a stable force conduction path with the force sensor 6; the lower fixing plate 9 is located at the bottom of the cutting assembly, providing a basis for installing the cutting fixture 11 and other components.

[0049] The L-shaped mounting plate 10 is fixed to one side of the lower fixed plate 9 and is used to install the displacement sensor 7. The L-shaped design has high structural stability and can effectively resist vibration and external force interference during the cutting process, ensuring the measurement accuracy of the displacement sensor 7. Specifically, the L-shaped mounting plate 10 can be provided with a long side mounting plate and a short side mounting plate, wherein the long side mounting plate and the short side mounting plate are vertically arranged. In practical applications, the L-shaped mounting plate 10 can be connected to the lower fixed plate 9 through the long side mounting plate, and connected to the displacement sensor 7 through the short side mounting plate.

[0050] The upper fixing plate 8 can be directly fixedly connected to the lower side of the force sensor 6 by bolts, so that all the forces of the cutting assembly are transmitted to the mobile platform 3 through the force sensor 6. This connection method ensures the accurate transmission of the cutting force during the cutting process, reduces the reading error of the force sensor 6, and further enables the force sensor 6 to record the changes in the cutting force in real time, providing high-precision data support for the measurement of mechanical parameters.

[0051] The lower fixing plate 9 is the bottom structure of the cutting assembly, and provides stable support for installing functional components such as the cutting fixture 11 and the cutting teeth 12. Through the lower fixing plate 9, the working parts of the cutting assembly can be stably installed, making the cutting process more stable.

[0052] The upper fixing plate 8 and the lower fixing plate 9 of the cutting assembly adopt a layered design and are fastened by bolts, which is not only compact but also easy to assemble and disassemble. This structure can effectively disperse the force during the cutting process, avoid stress concentration in the force transmission path, and improve the durability and reliability of the device.

[0053] In an optional embodiment, the cutting assembly is further provided with a cutting fixture 11, a cutting tooth 12 and an oil pump 13. The cutting fixture 11 is embedded and fixed on the lower side of the lower fixed plate 9, and the cutting tooth 12 is fixed to the lower end of the cutting fixture 11; the oil pump 13 is fixed on the upper platform 2, and the telescopic end of the oil pump 13 is fixedly connected to the upper side of the mobile platform 3.

[0054] The cutting fixture 11 can be used to fix the cutting teeth 12 and provide stable support for the cutting operation. By being embedded and fixed on the lower side of the lower fixing plate 9, the reliable connection between the cutting fixture 11 and the lower fixing plate 9 is ensured, avoiding loosening or position displacement caused by vibration during the cutting process. Optionally, the structural characteristics of the cutting fixture 11 can be configured to adapt to cutting teeth 12 of different shapes or sizes, thereby improving the flexibility and applicability of the device. The cutting fixture 11 can improve the structural stability of the cutting assembly, ensure the cutting trajectory of the cutting teeth 12 is accurate, and then support the cutting teeth 12 to complete high-precision cutting operations, providing stable conditions for the measurement of mechanical parameters.

[0055] The cutting teeth 12 are working parts that directly contact the workpiece 5 to be cut, and their design determines the specific effect of the cutting experiment. The cutting teeth 12 are fixed to the lower end of the cutting fixture 11 to ensure its stability and accuracy during the cutting process. In practical applications, the structure and size of the cutting teeth 12 can be flexibly replaced according to the material of the workpiece 5 to be cut and the experimental requirements. Optionally, the lower end of the displacement sensor 7 is at the same level as the lower end of the cutting teeth 12, so that the measurement data has a higher degree of credibility.

[0056] The pump acts as a power device, and drives the mobile platform 3 to slide up and down through the telescopic end to achieve dynamic adjustment of the cutting depth. Specifically, the oil pump 13 is fixed on the upper platform 2, and its telescopic end is fixedly connected to the upper side of the mobile platform 3, and the up and down position of the cutting assembly is accurately controlled through telescopic movement. The oil pump 13 provides an efficient and stable power transmission method to ensure that the sliding trajectory of the mobile platform 3 is smooth and avoid fluctuations in depth adjustment. Through cooperation with the mobile platform 3, dynamic adjustment of the cutting depth is achieved to meet the needs of different experimental conditions.

[0057] In an optional embodiment, the bottom platform 1, the mobile platform 3 and the upper platform 2 are all rectangular structures. Among them, fixed slide bars 4 are fixed at the four corners of the upper side of the bottom platform 1. Fixed slide bars 4 are fixed at the four corners of the upper side of the bottom platform 1, and fixed through holes are opened at the four corners of the upper platform 2, and the upper platform 2 is fixedly connected to the fixed slide bars 4 through the fixed through holes.

[0058] In this embodiment, the overall stability of the device, the operational flexibility and the accuracy of the measurement process are ensured by reasonably designing the structures of the bottom platform 1, the mobile platform 3 and the upper platform 2.

[0059] Specifically, the bottom platform 1, the mobile platform 3 and the upper platform 2 are all rectangular structures. Compared with other shapes, the rectangular structure has stronger stability and load-bearing capacity. At the same time, its regular shape facilitates the layout and installation of components, improving the overall processing accuracy and assembly simplicity of the device. The rectangular structure platform can also provide sufficient space for experimental operations, thereby avoiding the problem of operation restrictions caused by insufficient space and improving the applicability of the device.

[0060] In terms of platform connection, the fixed slide bars 4 are fixed at the four corners of the bottom platform 1, and the fixed slide bars 4 extend upward and connect to the upper platform 2 through the fixed through holes. This structure ensures that the upper platform 2 is fixed relative to the bottom platform 1, thereby providing a stable support frame. In addition, the upper platform 2 is tightly combined with the fixed slide bars 4 through the fixed through holes at the four corners, avoiding the influence of the loose or shaking platform on the measurement accuracy.

[0061] The mobile platform 3 is slidably connected to the fixed slide rod 4 through a sliding through hole. This structure enables the mobile platform 3 to slide freely along the slide rod between the bottom platform 1 and the upper platform 2. The precision machining of the sliding through hole ensures the smoothness of the sliding process of the mobile platform 3 and the linearity of the trajectory, thereby avoiding the problem of cutting point error caused by the trajectory deviation of the sliding mechanism in traditional devices. In addition, this sliding method provides technical support for the dynamic adjustment of the cutting depth. The sliding property of the mobile platform 3 combined with the design of the cutting component and the measuring component realizes real-time depth adjustment and mechanical parameter collection during the cutting process, greatly improving the accuracy and operability of the experiment.

[0062] In addition, by connecting the upper and lower platforms with sliding rods, a highly stable three-layer frame structure is constructed, so that the entire device can withstand the cutting force and vibration during the experiment and remain stable. The fixed sliding rod 4 not only ensures the relative position between the platforms, but also provides a guide for the sliding of the mobile platform 3. The arrangement of the fixed sliding rod 4 makes full use of the four corners of the rectangular platform. This symmetrical distribution further enhances the structural strength of the platform and avoids deformation or tilting caused by external forces.

[0063] In summary, the use of a rectangular platform and a reasonable sliding rod connection design achieve high strength, stability and operational flexibility of the device as a whole. Combining the structural design with functional requirements not only provides a solid basic framework, but also provides guarantees for the precise sliding of the mobile platform 3 and the high-precision collection of measurement data. The above structure improves the applicability and reliability of the device while ensuring the measurement accuracy.

[0064] In an optional embodiment, the clamping assembly is provided with a first slide 15, a second slide 16, a positioning plate 17 and a storage groove 18. The first slide 15 is fixed to the upper side of the bottom platform 1, the second slide 16 is slidably arranged on the upper side of the first slide 15, the positioning plate 17 is slidably arranged on the upper side of the second slide 16, and the sliding direction of the second slide 16 is perpendicular to the sliding direction of the positioning plate 17; the storage groove 18 is fixed to the upper side of the positioning plate 17, and is used to fix the workpiece 5 to be cut.

[0065] In this embodiment, the clamping assembly can be used to achieve accurate clamping and multi-directional adjustment of the workpiece 5 to be cut, so as to ensure the stability of the cutting experiment and the accuracy of the data. The design of the clamping assembly is realized by the combination of the slide, the adjustment plate 17 and the storage slot 18, and has high-precision adjustment capability and wide adaptability.

[0066] The clamping assembly includes a first slide 15, a second slide 16, an adjustment plate 17 and a storage slot 18. The first slide 15 is fixed to the upper side of the bottom platform 1, providing a connection basis between the clamping assembly and the entire device. The second slide 16 is slidably arranged on the upper side of the first slide 15, and the adjustment plate 17 is slidably arranged on the upper side of the second slide 16. The sliding directions of the second slide 16 and the adjustment plate 17 are perpendicular, so that the position of the workpiece 5 to be cut can be adjusted in the horizontal plane. The storage slot 18 is installed on the adjustment plate 17, which is used to directly fix the workpiece 5 to be cut, and its structure can adapt to workpieces of different shapes and sizes.

[0067] In the entire design, the sliding function between the first slide 15 and the second slide 16 and between the second slide 16 and the adjustment plate 17 is realized by screw drive. A first screw 19 is arranged inside the first slide 15, which cooperates with the first threaded connection block 20 below it. When the first screw 19 is driven to rotate, the second slide 16 moves along the sliding direction of the first slide 15, thereby realizing the position adjustment of the workpiece 5 to be cut in one direction. Similarly, a second threaded connection block 22 is arranged above the second slide 16, which cooperates with the second screw 23 below the adjustment plate 17. When the second screw 23 rotates, the adjustment plate 17 slides in a direction perpendicular to the second slide 16, thereby realizing the adjustment of the workpiece 5 to be cut in another direction. This sliding design based on screw drive ensures the high precision and stability of the adjustment process, and makes the operation more convenient and controllable.

[0068] Optionally, a first screw 19 is provided in the first slide 15, a first threaded connecting block 20 adapted to the first screw 19 is provided below the second slide 16, and a first driving device 21 is fixed to one end of the screw; a second threaded connecting block 22 is provided above the second slide 16, a second screw 23 adapted to the second threaded connecting block 22 is provided below the adjusting plate 17, and a second driving device 24 is fixed to one end of the second screw 23.

[0069] In this embodiment, the clamping assembly realizes the precise clamping and positioning functions of the workpiece 5 to be cut through the first slide 15, the second slide 16, the positioning plate 17 and the storage slot 18. First, the first slide 15 is fixed to the upper side of the bottom platform 1, the second slide 16 is slidably arranged on the first slide 15, and the positioning plate 17 is further slidably arranged on the second slide 16, and the sliding direction of the second slide 16 is perpendicular to the sliding direction of the positioning plate 17. This structural design enables the clamping assembly to be adjusted in multiple directions, thereby adapting to workpieces 5 to be cut of different shapes and sizes, ensuring that they can be stably maintained at a predetermined position during the cutting process.

[0070] In order to achieve precise adjustment and fixation, a first screw rod 19 is provided inside the first slide 15, and a first threaded connection block 20 adapted to the screw rod is provided below the second slide 16. By adjusting the screw rod, the second slide 16 can perform fine horizontal movement on the first slide 15, thereby adjusting the position of the workpiece 5 to be cut. In addition, a first drive device 21 is fixed to one end of the screw rod, which enables the first slide 15 to achieve precise movement control through the drive device and provide the required adjustment force. In this way, the clamping assembly can accurately adjust the position of the workpiece 5 to be cut as required, thereby ensuring that the contact position of the cutting teeth 12 with the workpiece 5 to be cut remains accurate during the cutting process, avoiding errors in cutting data caused by position deviations. Optionally, the first drive device 21 may include a hand wheel or a motor.

[0071] A second threaded connection block 22 is provided above the second slide 16, and a second screw rod 23 adapted thereto is provided below the adjustment plate 17. By adjusting the second screw rod 23, the adjustment plate 17 can move in the horizontal direction on the second slide 16, further optimizing the adjustment capability of the clamping assembly. A second drive device 24 is fixed to one end of the second screw rod 23, which is similar to the drive device on the first slide 15. The second drive device 24 provides precise adjustment of the position of the adjustment plate 17. In this way, the clamping assembly can not only realize multi-directional position adjustment, but also ensure the accurate and consistent position setting of the workpiece 5 to be cut in each experiment through the cooperation between the screw rod and the drive device.

[0072] Through the cooperation of multiple slides and screw systems, the clamping assembly can flexibly adjust the clamping position in the horizontal two-dimensional direction, which not only improves the stability of the clamping piece, but also enhances the applicability of the device, and can handle workpieces of different specifications and shapes. In addition, the cooperation of the first screw 19 and the second screw 23, combined with the precise control of the drive device, enables each adjustment to be completed within the minimum error range, thereby avoiding measurement errors caused by improper position of the clamping piece.

[0073] The placement groove 18 is the part of the clamping assembly that directly contacts the workpiece 5 to be cut, and its design takes diversity and practicality into consideration. A clamping screw 25 is provided on the outside of the placement groove 18, and the workpiece 5 to be cut can be firmly fixed in the placement groove 18 by operating the clamping screw 25 to prevent it from being displaced due to vibration or cutting force during the cutting process. This design not only adapts to workpieces of different shapes and sizes, but also effectively improves the repeatability of cutting experiments and the reliability of data.

[0074] Specifically, a clamping screw 25 is provided on the outside of the clamping assembly, and an operating rod 26 is fixed to one end of the clamping screw 25. The clamping screw 25 can effectively fix the workpiece 5 to be cut, preventing it from any unnecessary movement during the cutting process, thereby avoiding the accuracy of the measurement being affected by the change in the position of the workpiece. Since the measurement of the mechanical parameters of the cutting tooth 12 depends on the stable position of the workpiece, the role of the clamping assembly is crucial. The structural design of the clamping screw 25 provides a strong clamping force, so that the workpiece 5 to be cut can be firmly fixed in the clamping position, ensuring the accuracy of the cutting operation.

[0075] The setting of the operating rod 26 significantly improves the convenience of operation of the clamping device. The connection between the operating rod 26 and the clamping screw 25 allows the user to adjust the clamping force by a simple rotation operation. This design not only improves the human-machine interaction experience during the clamping process, but also can adjust the clamping tightness according to different workpiece sizes and shapes to ensure that it can adapt to different types of workpieces 5 to be cut. The design of one end of the operating rod 26 facilitates user control and ensures the efficiency and accuracy of the clamping process.

[0076] A method for measuring mechanical parameters of a drill cutting tooth provided by an embodiment of the present invention is described in detail below with reference to the accompanying drawings.

[0077] Figure 6 1 is a flow chart of a method for measuring mechanical parameters of a drill bit cutting tooth provided by an embodiment of the present invention. Figure 6 As shown, the method includes the following steps.

[0078] Step S101, fix the workpiece to be cut on the clamping assembly so that the workpiece to be cut is located directly below the cutting assembly and the displacement sensor.

[0079] Step S102, controlling the moving platform of the platform assembly to move downward until the cutting assembly cuts into the workpiece to be cut and the displacement sensor contacts the upper side of the workpiece to be cut.

[0080] Step S103, controlling the clamping assembly to move along the cutting direction corresponding to the workpiece to be cut, so that the cutting assembly cuts the workpiece to be cut, and at the same time collecting in real time the mechanical data generated by the force sensor and the displacement data generated by the displacement sensor during the cutting process.

[0081] Step S104: generating cutting tooth mechanical parameter measurement data based on the mechanical data and the displacement data.

[0082] First, the workpiece 5 to be cut is fixed on the clamping assembly so that the workpiece 5 to be cut (a rock sample is taken as an example in this embodiment) is located directly below the cutting assembly and the displacement sensor 7 .

[0083] In this embodiment, the rock sample to be cut can be placed in the placement groove 18 of the clamping assembly and clamped by the clamping screw 25 and the operating rod 26 of the clamping assembly to ensure that the rock sample is firmly fixed and avoid displacement or loosening during the cutting process.

[0084] The positions of the second slide 16 and the adjustment plate 17 of the clamping assembly are adjusted by the first screw 19 and the second screw 23 respectively to ensure that the upper side of the rock sample to be cut is aligned with the lower side of the cutting assembly and the displacement sensor 7 .

[0085] Check the relative position of the rock sample to be cut, the cutting teeth 12 and the displacement sensor 7 to ensure that the rock sample is aligned with the cutting assembly, providing accurate positioning for the subsequent cutting process.

[0086] Then, the mobile platform 3 of the control platform assembly moves downward until the cutting assembly cuts into the workpiece 5 to be cut and the displacement sensor 7 contacts the upper side of the workpiece 5 to be cut.

[0087] In this embodiment, the mobile platform 3 on the control platform assembly is driven by the oil pump 13 to slide the mobile platform 3 downward along the fixed slide rod 4 .

[0088] During the movement, the position of the cutting teeth 12 of the cutting assembly is observed in real time until the cutting teeth 12 of the cutting assembly slightly cut into the surface of the rock sample to be cut, while ensuring that the roller structure at the end of the displacement sensor 7 contacts the surface of the rock sample and generates a reading.

[0089] Ensure that the force sensor 6 and the displacement sensor 7 are in working condition to prepare for data collection in the subsequent cutting process.

[0090] Subsequently, the clamping assembly is controlled to move along the cutting direction corresponding to the workpiece 5 to be cut, so that the cutting assembly cuts the workpiece 5 to be cut, and at the same time, the mechanical data generated by the force sensor 6 and the displacement data generated by the displacement sensor 7 during the cutting process are collected in real time.

[0091] In this embodiment, the first driving device 21 is started, and the movement of the second slide 16 is adjusted by the first slide 15 to control the rock sample to move at a uniform speed along a preset cutting direction, and the cutting teeth 12 perform a cutting operation on the rock sample.

[0092] During the cutting process, the measuring component records the following data in real time:

[0093] Force sensor 6: records the cutting force data generated when the cutting tooth 12 contacts the rock sample.

[0094] Displacement sensor 7: records cutting depth and displacement change data.

[0095] Ensure that the cutting process is smooth. If abnormal vibration or data fluctuation occurs, suspend the operation and check the system status to avoid data errors.

[0096] Finally, mechanical parameter measurement data of the cutting tooth 12 is generated based on the mechanical data and the displacement data.

[0097] In this embodiment, based on the cutting force data and displacement data collected in real time, the original data is transmitted to the data processing module.

[0098] The cutting mechanical parameters in the rock sample cutting process are calculated through algorithms, including but not limited to: cutting force magnitude and direction, cutting depth change curve, cutting force and depth relationship curve, etc.

[0099] The generated data is stored and analyzed to provide a basis for evaluating cutting efficiency, mechanical properties of rock samples and optimization of cutting processes.

[0100] In actual application, during the initial debugging process, before cutting, ensure that the cutting assembly, measuring assembly and clamping assembly are operating normally, and the fixing state of the cutting teeth 12 and each sensor is stable and not loose. During the data monitoring process, by monitoring the real-time changes of mechanical and displacement data during cutting, the cutting speed or depth is adjusted in time to ensure the accuracy of the experiment. After cutting, clean the residues on the cutting assembly and the rock sample to be tested to ensure that the device is well maintained and ready for the next experiment.

[0101] Through the above embodiment method, the mechanical parameter measurement during the rock sample cutting process can be completed efficiently and accurately, ensuring the stability of the cutting operation and the reliability of the measurement data, and providing a scientific basis for the design of the cutting tooth 12 and the optimization of the cutting process.

[0102] After completing the initial cutting experiment, the cutting device also has the function of flexibly adjusting the cutting speed and cutting position to meet different experimental requirements:

[0103] If the cutting speed needs to be changed, the moving speed of the second slide 16 relative to the first slide 15 can be changed by the transmission device of the first drive device 21, so as to realize the experimental operation of the cutting tooth 12 under different speed conditions. After the adjustment is completed, the cutting experiment can be restarted, and steps S103 and S104 can be repeated to obtain the cutting mechanical parameter measurement data under the new speed condition.

[0104] The application of this function can simulate the influence of different cutting speeds on the cutting performance of rock samples, providing an important reference for optimizing cutting process parameters.

[0105] If a second experiment is to be conducted on the same rock sample, the rotation function of the second driving device 24 can be utilized to move the storage slot 18 to the left or right along the second slide 16 , thereby adjusting the relative positions of the cutting assembly and the displacement sensor 7 .

[0106] By observing and adjusting, ensure that the cutting teeth 12 are aligned with the uncut area of ​​the rock sample and maintain the horizontal stability of the cutting assembly.

[0107] After the adjustment is completed, step S103 and step S104 may be repeated to conduct experiments at a new cutting position and collect new cutting mechanical parameters.

[0108] This function can effectively utilize cutting materials and reduce the waste of experimental materials. At the same time, it can realize multi-point cutting performance comparison analysis and provide data support for studying the performance differences of materials at different positions.

[0109] Application scenarios of adjustment function

[0110] Speed ​​adjustment: suitable for studying the influence of cutting speed on material failure mode, cutting force variation law and cutting efficiency.

[0111] Position adjustment: suitable for multi-point cutting experiments, local cutting performance evaluation, or scenarios where multiple comparative experiments need to be performed on the same specimen.

[0112] Through the flexible adjustment of cutting speed and cutting position, the experimental system can adapt to more diverse cutting experiment needs, further enhancing the practicality of the device and the comprehensiveness of the data.

[0113] During the experiment, the force sensor 6 and the displacement sensor 7 are connected to specific ports of the computer through data cables, and the collection and storage of experimental data are completed by a dedicated program software. The program can record the mechanical parameters generated by the force sensor 6 and the displacement parameters generated by the displacement sensor 7 in real time during the cutting process, and synchronously record the timestamp of each set of data. This efficient data collection method not only ensures the integrity and consistency of the data during the experiment, but also provides rich basic data for subsequent data analysis.

[0114] The core of data analysis and processing is to accurately determine the running path of the cutting tooth 12 and the dynamic changes at the time point through the displacement information collected by the displacement sensor 7. Specifically, in the data processing stage, the starting position and the ending position recorded by the displacement sensor 7 are first read, and the total displacement of the cutting tooth 12 is calculated by the distance difference between the two. On this basis, the timestamp is associated with the displacement change to generate a time-displacement curve of the cutting process. At the same time, the mechanical parameters recorded by the force sensor 6 are matched according to the same time axis to generate a time-force curve. By combining the two sets of curves, the dynamic relationship between force and displacement in the cutting process can be accurately restored.

[0115] In addition, this data processing flow can not only provide basic cutting parameter analysis, but also provide support for feature extraction, pattern recognition and behavior prediction of the cutting process. For example, in the cutting experiment, important information such as the cutting resistance peak, acceleration change and material deformation characteristics corresponding to a specific time point can be identified. These results can be further correlated with material properties and cutting process parameters to help researchers optimize cutting speed, cutting depth and other process parameters.

[0116] The automation and precision of the entire process significantly improves experimental efficiency while minimizing the impact of human errors. The collected and processed experimental data can not only be used for the analysis of the current experiment, but also serve as a basic database to provide important references for subsequent comparative analysis or numerical simulation of similar experiments, ultimately providing a scientific basis for optimizing cutting processes and improving production efficiency.

[0117] It should be noted that the term "including" and its variations used in the embodiments of the present invention are open inclusions, that is, "including but not limited to". The term "based on" means "based at least in part on". The term "one embodiment" means "at least one embodiment"; the term "another embodiment" means "at least one other embodiment"; the term "some embodiments" means "at least some embodiments". The modifications of "one" and "multiple" mentioned in the embodiments of the present invention are illustrative rather than restrictive. Those skilled in the art should understand that unless the context clearly indicates otherwise, it should be understood as "one or more".

[0118] The user information (including but not limited to user device information, user personal information, etc.) and data (including but not limited to data used for analysis, stored data, displayed data, etc.) involved in the embodiments of the present invention are all information and data authorized by the user or fully authorized by all parties, and the collection, use and processing of relevant data must comply with relevant laws, regulations and standards of relevant countries and regions, and provide corresponding operation entrances for users to choose to authorize or refuse.

[0119] The various steps described in the method implementation methods provided in the embodiments of the present invention may be performed in different orders and / or in parallel. In addition, the method implementation methods may include additional steps and / or omit the steps shown. The scope of protection of the present invention is not limited in this respect.

[0120] The term "embodiment" in this specification refers to specific features, structures or characteristics described in conjunction with the embodiment that can be included in at least one embodiment of the present invention. The appearance of this phrase in various places in the specification does not necessarily mean the same embodiment, nor does it mean that it is mutually exclusive with other embodiments and is independent or optional. The various embodiments in this specification are described in a related manner, and the same or similar parts between the various embodiments refer to each other. In particular, for the device, equipment, and system embodiments, since they are basically similar to the method embodiments, the description is relatively simple, and the relevant parts refer to the partial description of the method embodiment.

[0121] The above-mentioned embodiments only express several implementation methods of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of patent protection. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the scope of protection of the present invention. Therefore, the scope of protection of the present invention shall be subject to the attached claims.

Claims

1. A drill bit cutting tooth mechanical parameter measuring device, characterized in that: It includes a platform component, a measuring component, a clamping component and a cutting component; The platform assembly is provided with a bottom platform, an upper platform and a mobile platform, wherein the upper platform is fixed above the bottom platform by a fixed slide bar, the mobile platform is slidably arranged on the fixed slide bar, and the mobile platform is located between the bottom platform and the upper platform; The clamping assembly is fixed on the bottom platform and is used to clamp the workpiece to be cut; The cutting assembly is fixed below the mobile platform and is used for cutting the workpiece to be cut; The measuring component is provided with a force sensor and a displacement sensor. The force sensor is fixed between the cutting component and the moving platform. The displacement sensor is fixed on one side of the cutting component. The end of the displacement sensor is a roller structure.

2. The drill bit cutting tooth mechanical parameter measuring device according to claim 1, characterized in that: The cutting assembly is provided with an upper fixing plate and a lower fixing plate, and the lower fixing plate is fixed to the lower side of the upper fixing plate by bolts; The upper fixing plate is fixed to the lower side of the force sensor by bolts, an L-shaped mounting plate is fixed to one side of the lower fixing plate by bolts, and the displacement sensor is fixed to the L-shaped mounting plate.

3. The drill bit cutting tooth mechanical parameter measuring device according to claim 2, characterized in that: The cutting assembly is also provided with a cutting fixture, cutting teeth and an oil pump; The cutting fixture is embedded and fixed on the lower side of the lower fixed plate, and the cutting teeth are fixed on the lower end of the cutting fixture; the oil pump is fixed on the upper platform, and the telescopic end of the oil pump is fixedly connected to the upper side of the mobile platform.

4. The drill bit cutting tooth mechanical parameter measuring device according to claim 3, characterized in that: The lower end of the displacement sensor and the lower end of the cutting tooth are located at the same level.

5. The drill bit cutting tooth mechanical parameter measuring device according to claim 1, characterized in that: The bottom platform, the mobile platform and the upper platform are all rectangular structures; The fixed slide rods are fixed at the four corners on the upper side of the bottom platform; fixed through holes are opened at the four corners of the upper platform, and the upper platform is fixedly connected to the fixed slide rods through the fixed through holes; sliding through holes are opened at the four corners of the mobile platform, and the mobile platform is slidingly connected to the fixed slide rods through the sliding through holes.

6. The drill bit cutting tooth mechanical parameter measuring device according to claim 1, characterized in that: A sensor bracket is fixed below the mobile platform, and the mobile platform is fixedly connected to the force sensor through the sensor bracket.

7. The drill bit cutting tooth mechanical parameter measuring device according to claim 1, characterized in that: The clamping assembly is provided with a first slide, a second slide, an adjustment plate and a storage slot; The first slide is fixed to the upper side of the bottom platform, the second slide is slidably arranged on the upper side of the first slide, the adjustment plate is slidably arranged on the upper side of the second slide, and the sliding direction of the second slide is perpendicular to the sliding direction of the adjustment plate; The storage groove is fixed on the upper side of the adjustment plate and is used to fix the workpiece to be cut.

8. The drill bit cutting tooth mechanical parameter measuring device according to claim 7, characterized in that: A first screw is arranged in the first slide, a first threaded connection block adapted to the first screw is arranged below the second slide, and a first driving device is fixed to one end of the screw; A second threaded connection block is arranged above the second slide, a second screw rod matched with the second threaded connection block is arranged below the adjustment plate, and a second driving device is fixed to one end of the second screw rod.

9. The drill bit cutting tooth mechanical parameter measuring device according to claim 7, characterized in that: A clamping screw is arranged on the outer side of the storage groove, and an operating rod is fixed on one end of the clamping screw.

10. A method for measuring mechanical parameters of drill bit cutting teeth, characterized in that: The method is applied to a drill bit cutting tooth mechanical parameter measuring device, wherein the drill bit cutting tooth mechanical parameter measuring device is provided with a platform component, a measuring component, a clamping component and a cutting component, wherein the measuring component comprises a force sensor and a displacement sensor; the method comprises: Fixing the workpiece to be cut on the clamping assembly so that the workpiece to be cut is located directly below the cutting assembly and the displacement sensor; Controlling the moving platform of the platform assembly to move downward until the cutting assembly cuts into the workpiece to be cut and the displacement sensor contacts the upper side of the workpiece to be cut; Controlling the clamping assembly to move along the cutting direction corresponding to the workpiece to be cut, so that the cutting assembly cuts the workpiece to be cut, and at the same time collecting the mechanical data generated by the force sensor and the displacement data generated by the displacement sensor in real time during the cutting process; Cutting tooth mechanical parameter measurement data is generated based on the mechanical data and the displacement data.

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