A hard alloy cutter size detection tool

Abstract

This invention belongs to the field of cemented carbide cutting tool inspection technology, specifically disclosing a cemented carbide cutting tool size inspection fixture, including a worktable. A detection mechanism is connected to one side of the upper end of the worktable for inspecting the cutting edge of the tool. A positioning and clamping mechanism is connected to the side of the upper end of the worktable corresponding to the detection mechanism. The positioning and clamping mechanism includes a mounting cylinder, which is flared in shape. The lower end of the mounting cylinder is connected to the upper end of the worktable, and the upper end of the mounting cylinder is connected to a rotary table via a stabilizing mechanism. This invention achieves adaptive centering with immediate clamping upon insertion through the coordinated operation of the positioning and clamping mechanism, lifting mechanism, driving mechanism, and electromagnetic locking. Combined with lifting, rotation, and electromagnetic locking, it can quickly and non-destructively complete batch inspection of cemented carbide tools of different specifications, offering advantages such as good inspection consistency, high efficiency, and minimal damage to the cutting edge.

Description

Technical Field

[0001] This invention belongs to the field of cemented carbide tool inspection, and specifically discloses a tooling for inspecting the dimensions of cemented carbide tools. Background Technology

[0002] Carbide cutting tools, due to their high hardness, high wear resistance, and good red hardness, are widely used in high-speed cutting and precision machining. During the tool manufacturing process, critical dimensions must be rigorously inspected, mainly including parameters such as the outer diameter, circular runout, cutting edge profile, and axial length of the tool tip. Because carbide materials are brittle and have low toughness, excessive clamping force or improper positioning during inspection can easily cause chipping or micro-cracks on the cutting edge. Furthermore, the diverse shapes of tool tips (such as ball-end, flat-end, and chamfered) require ensuring stable and uniform spatial positioning of the tool tip during inspection to obtain consistent and reliable measurement results. Therefore, how to achieve rapid and accurate positioning and measurement of the tool tip without damaging the tool is a pressing technical problem to be solved in the field of tool inspection.

[0003] Currently, the common method for dimensional inspection of cemented carbide cutting tools is to place the tool shank on a fixed support and then use a laser displacement sensor to perform non-contact scanning measurement of the tool tip. This type of laser inspection equipment has the advantages of fast measurement speed and no contact force. However, in actual use, due to factors such as the deviation of the shank diameter of different tools, the difference in tool tip length, and the poor repeatability of manual clamping, even tools from the same batch often have inconsistent spatial height and radial position of the tool tip relative to the laser probe. This positional difference will cause the laser beam to fail to accurately focus on the rated measurement section of the tool tip, or cause the measurement point to deviate from the preset detection position, thereby introducing a large measurement error and reducing the consistency and reliability of batch inspection. Summary of the Invention

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a tooling for detecting the dimensions of cemented carbide cutting tools.

[0005] To achieve the above objectives, the present invention provides a tooling for inspecting the dimensions of carbide cutting tools, including a worktable, a detection mechanism connected to one side of the upper end of the worktable, the detection mechanism being used to inspect the cutting tip of the tool, and a positioning and clamping mechanism connected to the side of the upper end of the worktable corresponding to the detection mechanism. The positioning and clamping mechanism includes a mounting cylinder, which is flared in shape. The lower end of the mounting cylinder is connected to the upper end of the worktable, and the upper end of the mounting cylinder is connected to a rotating table through a stabilizing mechanism. A limit cylinder is connected to the upper end of the rotating table. A drive mechanism is provided at the upper end of the worktable corresponding to the rotary table. The drive mechanism is used to drive the rotary table to rotate and complete the angle adjustment of the clamping tool. A lifting cavity is opened in the middle of the upper end of the rotary table. A lifting mechanism is connected to the lower end of the rotary table. The upper end of the lifting mechanism is located inside the lifting cavity. The inner wall of the limiting cylinder is a limiting cavity. A positioning clamping mechanism is connected to the upper end of the lifting mechanism. The positioning clamping mechanism is located inside the limiting cavity.

[0006] Preferably, the detection mechanism includes a vertical lifting slide rail, the lower end of which is connected to one side of the upper end of the worktable. A slider is slidably connected to one side of the vertical lifting slide rail, and connecting arms are connected to both sides of the slider. A laser detection device is connected to one side of each of the two connecting arms. The two laser detection devices are used to detect the size of the cutting tool tip. A laser positioning device is connected to one side of the slider. The laser positioning device is used to position the height and angle of the cutting tool tip. By integrating the detection mechanism and the positioning and clamping mechanism on the same worktable, the integrated operation of tool measurement and clamping positioning is realized, reducing the error caused by repeated clamping. The trumpet-shaped mounting cylinder, together with the rotary table and lifting mechanism, can simultaneously complete the centering, lifting and rotation adjustment of the tool, improving the automation and adaptability of the detection.

[0007] Preferably, the stabilizing mechanism includes a support ring, the lower end of which is connected to the upper end of the mounting cylinder. The mounting cylinder has a Z-shaped cross-section. A stabilizing rail is connected to the upper end of the mounting cylinder. The stabilizing rail is arc-shaped. A slip ring is slidably connected above the stabilizing rail. The inner wall of the slip ring is connected to the outer wall of the rotary table. Laser positioning equipment can pre-identify the height and angle of the cutting head, guiding the laser detection equipment to quickly align with the measurement area, avoiding blind scanning and wasting time. Two laser detection devices can simultaneously collect cutting head size data from different directions, improving detection efficiency and reducing measurement blind spots through data fusion.

[0008] Preferably, the upper end of the support ring is connected to a support ring, and the inner wall of the support ring is provided with a mounting groove in the circumferential direction. A rotating roller is rotatably connected inside the multiple mounting grooves, and one side of the multiple rotating rollers contacts the upper part of the outer wall of the rotating table. The circumferentially arranged rotating rollers convert sliding friction into rolling friction, which greatly reduces the resistance when the rotary table is running and extends the service life of the drive mechanism. The rotating rollers also play an auxiliary centering and lateral support role for the rotary table, improving the rigidity of the rotary table at high speeds.

[0009] Preferably, the driving mechanism includes a rotary motor, and the output end of the rotary motor is connected to a pulley on the lower part of the outer wall of the rotary table. The two pulleys are connected by a transmission belt.

[0010] Preferably, the lifting mechanism includes a drive motor, the upper end of which is connected to the lower end of the rotary table via a mounting block. The output end of the drive motor is connected to a drive screw, the upper end of which passes through the rotary table and extends into the lifting cavity. A threaded cylinder is threadedly connected to the outer wall of the drive screw, and stabilizing blocks are circumferentially connected to the outer wall of each threaded cylinder. Each of the multiple stabilizing blocks has a sliding hole on one side. Stabilizing rods are connected to the lower end of the inner wall of the lifting cavity corresponding to the multiple sliding holes. The multiple stabilizing rods are located inside the multiple sliding holes, and the multiple stabilizing blocks slide up and down on the outer wall of the multiple stabilizing rods.

[0011] Preferably, the positioning and clamping mechanism includes a lifting cylinder, the lower end of which is connected to the upper end of a threaded cylinder, a mounting plate connected to the upper end of the lifting cylinder, a sliding rod connected to the lower end of the mounting plate, the sliding rod being in the shape of an inverted T, a movable magnetic block connected to the middle of the lower end of the sliding rod, a solenoid block connected to the middle of the lower end of the inner wall of the lifting cylinder, the upper end of the sliding rod extending through to the upper end of the mounting plate and connected to a placement support, and a clamping mechanism circumferentially connected to the upper end of the mounting plate. The movable magnetic block and the solenoid block work together to lock the position of the slide rod using electromagnetic attraction, avoiding the impact and wear caused by mechanical locking. When the solenoid block is energized, the slide rod is attracted and fixed, thereby keeping the height of the support platform stable and ensuring that the clamping force of the clamping mechanism on the tool is constant.

[0012] Preferably, a buffer spring is connected to the lower end of the mounting plate, and the lower end of the buffer spring is connected to the T-shaped end of the lower end of the slide rod. The buffer spring is sleeved onto the outer wall of the slide rod. The placement platform is used to place the tool to be tested. There are three sets of clamping mechanisms, which are circumferentially distributed above the mounting plate.

[0013] Preferably, the clamping mechanism includes a mounting base, a gripper is rotatably connected inside the mounting base, a pull block is rotatably connected to both sides of the gripper, a moving block is rotatably connected between the two pull blocks, a moving rod is connected to the lower end of each moving block, the lower ends of the two moving rods extend through to the bottom of the mounting plate and are connected to the T-shaped end of the lower end of the slide rod, and a buffer pad is connected to one end of the gripper. The moving rod and the slide rod are linked. When the tool is pressed down to place on the support, the slide rod drives the moving rod to pull the moving block down, so that the cleaver automatically retracts inward to clamp the tool holder. This achieves an adaptive action of clamping as soon as it is inserted. The buffer pad directly contacts the surface of the tool holder, which increases the friction and prevents scratches on the carbide coating. At the same time, it allows the cleaver to reliably drive the tool to rotate synchronously when it is rotating.

[0014] Compared with the prior art, the present invention has the following beneficial effects: This invention, by setting up a lifting mechanism to move the placement platform up and down, and in conjunction with a laser positioning device to identify the height of the cutter head in real time, can automatically adjust the cutter heads of cutters of different lengths to the same preset measurement height. At the same time, the drive mechanism drives the rotary table to rotate, so that the cutter maintains a uniform angular reference during the inspection process. This effectively solves the problem of inconsistent cutter head positions and deviations in inspection results caused by differences in cutter diameter and height in the prior art, and improves the consistency and measurement accuracy of batch inspection of cutters in the same batch.

[0015] This invention employs a positioning and clamping mechanism that links a sliding rod, a moving rod, and a gripper linkage. When the tool is placed on the placement platform and pressed down, the sliding rod drives the moving rod to pull down the moving block, causing the gripper to automatically retract inward and achieve centering and clamping of the tool holder. Only one pressing action is required to complete the positioning and locking of the tool. Simultaneously, this mechanism ensures that the position of the tool tip relative to the detection reference remains consistent for each tool in the same batch after clamping, avoiding clamping errors caused by manual adjustment, and thus improving detection efficiency and operational convenience. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of the device of the present invention; Figure 2 This is a schematic diagram of the internal structure of the mounting cylinder of the present invention; Figure 3 This is a schematic diagram of the connection structure between the rotary table and the drive mechanism of the present invention; Figure 4 This is a schematic diagram of the installation structure of the lifting mechanism of the present invention; Figure 5 This is a schematic diagram of the installation structure of the positioning and clamping mechanism and the threaded cylinder of the present invention; Figure 6 This is a schematic diagram of the positioning and clamping mechanism of the present invention; Figure 7 This is a schematic diagram of the internal structure of the lifting cylinder of the present invention.

[0017] In the diagram: 1. Workbench; 2. Vertical lifting slide rail; 3. Slider; 4. Connecting arm; 5. Laser detection equipment; 6. Laser positioning equipment; 7. Mounting cylinder; 8. Support ring; 9. Stabilizing rail; 10. Slip ring; 11. Rotary table; 12. Support ring; 13. Rotating roller; 14. Limiting cylinder; 15. Rotary motor; 16. Pulley; 17. Transmission belt; 18. Lifting chamber; 19. Limiting chamber; 20. Drive motor; 21. Drive screw; 22. Threaded cylinder; 23. Stabilizing block; 24. Stabilizing rod; 25. Lifting cylinder; 26. Mounting plate; 27. Slide rod; 28. Buffer spring; 29. ​​Moving magnetic block; 30. Electromagnetic block; 31. Placement platform; 32. Mounting base; 33. Gripper; 34. Pull block; 35. Moving block; 36. Moving rod; 37. Buffer pad. Detailed Implementation

[0018] To better understand the above-mentioned objectives, features, and advantages of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0019] Numerous specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and therefore the invention is not limited to the specific embodiments disclosed below.

[0020] like Figures 1-7 The tooling for inspecting the dimensions of a carbide cutting tool shown includes a worktable 1, a detection mechanism connected to one side of the upper end of the worktable 1, the detection mechanism being used to inspect the cutting tip of the tool, and a positioning and clamping mechanism connected to the side of the upper end of the worktable 1 corresponding to the detection mechanism. The positioning and clamping mechanism includes a mounting cylinder 7, which is flared in shape. The lower end of the mounting cylinder 7 is connected to the upper end of the worktable 1. The upper end of the mounting cylinder 7 is connected to a rotary table 11 through a stabilizing mechanism. The upper end of the rotary table 11 is connected to a limit cylinder 14. A drive mechanism is provided at the upper end of the worktable 1 corresponding to the rotary table 11. The drive mechanism is used to drive the rotary table 11 to rotate and complete the angle adjustment of the clamping tool. A lifting cavity 18 is opened in the middle of the upper end of the rotary table 11. A lifting mechanism is connected to the lower end of the rotary table 11. The upper end of the lifting mechanism is located inside the lifting cavity 18. The inner wall of the limiting cylinder 14 is a limiting cavity 19. A positioning clamping mechanism is connected to the upper end of the lifting mechanism. The positioning clamping mechanism is located inside the limiting cavity 19. The worktable 1 serves as the base of the entire fixture. The detection mechanism and the positioning and clamping mechanism are respectively installed on the upper two sides of the worktable 1. The rotary table 11 can rotate around its own axis under the drive of the drive mechanism. The limiting cylinder 14 is fixed to the upper end of the rotary table 11. The limiting cavity 19 inside it provides guidance and radial limitation for the tool. The lifting mechanism is installed at the lower end of the rotary table 11. Its movable end extends upward into the lifting cavity 18. The positioning and clamping mechanism is connected to the movable end of the lifting mechanism and is located inside the limiting cavity 19. When the lifting mechanism is activated, it can drive the positioning and clamping mechanism to move up and down, thereby adjusting the height of the tool tip placed on the positioning and clamping mechanism relative to the detection mechanism. When the drive mechanism drives the rotary table 11 to rotate, the positioning and clamping mechanism and the tool rotate together with the rotary table 11 to realize the adjustment of the tool detection angle.

[0021] like Figure 1As shown: The detection mechanism includes a vertical lifting slide rail 2, the lower end of which is connected to one side of the upper end of the worktable 1. A slider 3 is slidably connected to one side of the vertical lifting slide rail 2. Connecting arms 4 are connected to both sides of the slider 3. Laser detection devices 5 are connected to one side of the two connecting arms 4. The two laser detection devices 5 are used to detect the size of the tool tip. A laser positioning device 6 is connected to one side of the slider 3. The laser positioning device 6 is used to position the height and angle of the tool tip. The slider 3 can slide up and down along the vertical lifting slide rail 2. The two laser detection devices 5 can simultaneously collect dimensional data such as the outer diameter and circular runout of the cutter head from different directions. By data fusion, the measurement blind zone is reduced. The laser positioning device 6 has its optical axis pointing to the cutter on the positioning clamping mechanism. During operation, the laser positioning device 6 first emits a positioning beam to identify the actual height and angle position of the cutter head. The controller drives the slider 3 to move along the vertical lifting slide rail 2 to the optimal measurement height according to the feedback signal. At the same time, the drive mechanism adjusts the angle of the rotary table 11 so that the cutter head is aligned with the measurement focus of the laser detection device 5. This realizes closed-loop calibration of the cutter head height and angle, avoids measurement position deviation caused by differences in cutter size, and improves the automation and repeatability of the detection.

[0022] like Figures 2-4 As shown: The stabilizing mechanism includes a support ring 8, the lower end of which is connected to the upper end of the mounting cylinder 7. The cross-sectional shape of the mounting cylinder 7 is Z-shaped. The upper end of the mounting cylinder 7 is connected to a stabilizing rail 9, which is arc-shaped. A slip ring 10 is slidably connected above the stabilizing rail 9. The inner wall of the slip ring 10 is connected to the outer wall of the rotary table 11. The stabilizing rail 9 is fixed to the upper end of the mounting cylinder 7 and surrounds the outer periphery of the rotary table 11. The lower end face of the slip ring 10 is provided with a sliding groove that matches the stabilizing rail 9, allowing it to slide smoothly along the stabilizing rail 9. When the rotary table 11 rotates, the slip ring 10 makes a circular motion on the stabilizing rail 9. The stabilizing rail 9 provides radial and axial bidirectional constraints on the slip ring 10, effectively preventing the rotary table 11 from tilting or shaking when rotating at high speed.

[0023] like Figure 4 As shown: The upper end of the support ring 8 is connected to the support ring 12. The inner wall of the support ring 12 is provided with mounting grooves in the circumference. Rotating rollers 13 are rotatably connected inside the multiple mounting grooves. One side of the multiple rotating rollers 13 contacts the upper part of the outer wall of the rotating table 11. The outer edge of the rotating roller 13 maintains rolling contact with the upper part of the outer wall of the rotating table 11. When the rotating table 11 rotates, the rotating roller 13 rotates along with it under the action of friction, converting the sliding friction between the rotating table 11 and the support ring 12 into rolling friction, which significantly reduces the rotational resistance.

[0024] like Figure 3 and Figure 4As shown: The drive mechanism includes a rotary motor 15. The output end of the rotary motor 15 and the lower part of the outer wall of the rotary table 11 are both connected to pulleys 16. The two pulleys 16 are connected by a transmission belt 17. When the rotary motor 15 starts, the pulley 16 on its output shaft drives the pulley 16 on the rotary table 11 to rotate through the transmission belt 17, thereby causing the rotary table 11 to rotate around its own axis.

[0025] like Figure 4 and Figure 5 As shown: The lifting mechanism includes a drive motor 20. The upper end of the drive motor 20 is connected to the lower end of the rotary table 11 through a mounting block. The output end of the drive motor 20 is connected to a drive screw 21. The upper end of the drive screw 21 passes through the rotary table 11 and extends into the lifting cavity 18. A threaded cylinder 22 is threadedly connected to the outer wall of the drive screw 21. Stabilizing blocks 23 are circumferentially connected to the outer wall of the threaded cylinder 22. Each of the multiple stabilizing blocks 23 has a sliding hole on one side. Stabilizing rods 24 are connected to the lower end of the inner wall of the lifting cavity 18 corresponding to the multiple sliding holes. The multiple stabilizing rods 24 are located inside the multiple sliding holes respectively. The multiple stabilizing blocks 23 slide up and down on the outer wall of the multiple stabilizing rods 24 respectively. The output shaft of the drive motor 20 is coaxially connected to the drive screw 21. The threaded cylinder 22 is sleeved on the outside of the drive screw 21 and threadedly engaged with the drive screw 21. When the drive motor 20 drives the drive screw 21 to rotate, the threaded cylinder 22 moves axially along the drive screw 21 under the thread drive. The stabilizing block 23 slides up and down along the stabilizing rod 24, thereby driving the positioning and clamping mechanism to rise and fall. The engagement between the stabilizing rod 24 and the sliding hole ensures that the threaded cylinder 22 only makes linear motion and does not rotate, thus improving the straightness and stability of the lifting process.

[0026] like Figure 6 and Figure 7 As shown: The positioning and clamping mechanism includes a lifting cylinder 25, the lower end of which is connected to the upper end of the threaded cylinder 22. The upper end of the lifting cylinder 25 is connected to a mounting plate 26, and the lower end of the mounting plate 26 is connected to a slide rod 27. The slide rod 27 is in the shape of an inverted T. A movable magnetic block 29 is connected to the middle of the lower end of the slide rod 27. A solenoid block 30 is connected to the middle of the lower end of the inner wall of the lifting cylinder 25. The upper end of the slide rod 27 extends through to the upper end of the mounting plate 26 and is connected to a placement support 31. The upper end of the mounting plate 26 is circumferentially connected to a clamping mechanism. The lifting cylinder 25 rises and falls together with the threaded cylinder 22. The movable magnetic block 29 and the solenoid block 30 are vertically opposite each other with a gap. When the tool is placed on the placement platform 31 and pressed down, the slide rod 27 moves downward against the elastic force of the buffer spring 28, so that the movable magnetic block 29 is close to the solenoid block 30. After the gripper 33 clamps the outer wall of the tool, it energizes the solenoid block 30, generating an electromagnetic attraction to attract the movable magnetic block 29, thereby locking the slide rod 27 in this position. At this time, the clamping mechanism maintains the clamping force on the tool holder. After the measurement is completed, the solenoid block 30 is de-energized, the magnetic force disappears, and the slide rod 27 returns to its original position under the action of the buffer spring 28, and the clamping mechanism automatically releases.

[0027] A buffer spring 28 is connected to the lower end of the mounting plate 26. The lower end of the buffer spring 28 is connected to the T-shaped end of the lower end of the slide rod 27. The buffer spring 28 is sleeved onto the outer wall of the slide rod 27. The support platform 31 is used to place the tool to be tested. There are three sets of clamping mechanisms, which are distributed circumferentially above the mounting plate 26. When the tool is placed on the placement platform 31, the tool's own weight and the downward pressure applied by the operator cause the slide bar 27 to move downward. The buffer spring 28 plays a buffering and vibration-absorbing role, preventing the tool handle from having a rigid impact with the placement platform 31 and chipping the blade. When the jaws 33 of the three clamping mechanisms retract centripetally at the same time, they can form a three-point centering clamp on the tool handle, automatically adjusting the tool axis to coincide with the axis of the rotary table 11, ensuring the consistency of the detection benchmark. Moreover, the three clamping mechanisms work together to distribute the clamping force evenly, avoiding tool deflection caused by unilateral force.

[0028] like Figure 7 As shown: The clamping mechanism includes a mounting base 32, a gripper 33 is rotatably connected inside the mounting base 32, a pull block 34 is rotatably connected to both sides of the gripper 33, a moving block 35 is rotatably connected between the two pull blocks 34, a moving rod 36 is connected to the lower end of the moving block 35, the lower ends of the two moving rods 36 extend through to the bottom of the mounting plate 26 and are connected to the T-shaped end of the lower end of the slide rod 27, and a buffer pad 37 is connected to one end of the gripper 33; Mounting base 32 is fixed on the upper end face of mounting plate 26. The middle part of the gripper 33 is rotatably connected to the mounting base 32 through a rotating shaft. The lower part of the gripper 33 is L-shaped. When the slide bar 27 moves downward, the moving bar 36 is pulled down, which drives the moving block 35 to move downward. The moving block 35 pulls the rear end of the gripper 33 downward through the pull block 34. According to the lever principle, the front end of the gripper 33 swings downward and inward, pressing against the surface of the tool holder. The buffer pad 37 is made of flexible material and is fixed to the inner front end of the gripper 33. The buffer pad 37 directly contacts the tool holder, which increases the coefficient of friction to ensure that the tool does not slip during rotation. On the other hand, it prevents the carbide tool holder from being scratched or dented. When it is necessary to release, the solenoid block 30 is de-energized, the slide bar 27 is reset upward under the action of the buffer spring 28, pushes the moving rod 36 to move upward, and the gripper 33 swings back to reset, so that the tool can be taken out. The entire clamping and releasing process is completed by a single pressing action without any additional operation, realizing quick clamping.

[0029] It should be noted that the specific circuit connections, control logic, and driving methods of the actuators and detection elements involved in the embodiments of the present invention, such as the rotary motor 15, drive motor 20, electromagnet 30, laser detection device 5, laser positioning device 6, vertical lifting slide rail 2 and its slider 3, are all conventional techniques in the field and fall within the scope of existing technology. Those skilled in the art can select appropriate models of motors, laser sensors, electromagnets, and matching drivers according to actual detection needs, and implement them according to conventional electrical wiring and mechanical installation methods. The specific working principles, internal structures, and control programs of the above-mentioned components that are not innovative points of this invention will not be elaborated here.

[0030] Working principle: When in use, firstly, according to the specifications of the tool to be tested, the operator manually or through an external switch starts the lifting mechanism. The drive motor 20 drives the drive screw 21 to rotate, driving the threaded cylinder 22 to move up and down along the stabilizing rod 24, thereby driving the lifting cylinder 25, the mounting plate 26 and the placement platform 31 to rise and fall to the preset height. At the same time, the laser positioning device 6 emits a positioning beam, and the operator adjusts the position of the slider 3 on the vertical lifting slide rail 2 so that the measurement focus of the laser detection device 5 is aligned with the detection section of the tool head.

[0031] Then, the operator inserts the shank of the carbide tool to be tested into the limiting cavity 19 from the upper end of the limiting cylinder 14, so that the end of the tool shank is placed on the placement platform 31. The operator presses the tool down, and the weight of the tool and the downward pressure applied by the operator cause the slide bar 27 to move downward against the elastic force of the buffer spring 28. When the slide bar 27 moves down, the moving rod 36 connected to its lower T-shaped end is pulled down synchronously. The moving rod 36 drives the moving block 35 to move downward. The moving block 35 pulls the rear end of the clamp 33 downward through the pull block 34. According to the lever principle, the end of the clamp 33 with the buffer pad 37 swings upward and inward, thereby radially contracting and clamping the tool shank. The three sets of clamping mechanisms are evenly distributed circumferentially to achieve automatic centering and synchronous clamping.

[0032] As the slide bar 27 moves downward, the movable magnetic block 29 fixed to the lower end of the slide bar 27 approaches the electromagnetic block 30 at the lower end of the inner wall of the lifting cylinder 25. The electromagnetic block 30 is energized, generating an electromagnetic attraction force to attract the movable magnetic block 29, locking the slide bar 27 in the current downward position, thereby maintaining a constant clamping force of the gripper 33 on the tool holder. At this time, the tool is reliably fixed on the placement platform 31, and the tool tip is at the predetermined measurement height.

[0033] Next, the rotary motor 15 is started, which drives the rotary table 11 to rotate at a constant speed through the pulley 16 and the transmission belt 17. The rotary table 11 drives the limiting cylinder 14, the lifting mechanism and the positioning clamping mechanism to rotate as a whole. The clamped tool rotates together. Two laser detection devices 5 collect dimensional data such as the outer diameter and circular runout of the tool head in real time from different directions. During the measurement process, the supporting ring 8, the stabilizing rail 9, the slip ring 10 and the rotating roller 13 in the stabilizing mechanism ensure that the rotary table 11 rotates smoothly and prevents radial runout from affecting the measurement accuracy.

[0034] After the measurement is completed, the electromagnetic block 30 is de-energized, the electromagnetic attraction disappears, the slide bar 27 is reset upward under the elastic force of the buffer spring 28, pushing the moving rod 36, the moving block 35 and the pull block 34 to move in the opposite direction, the gripper 33 opens to release the tool handle, the operator takes out the tool, and the test process is completed.

[0035] For different cutting tools in the same batch, before each inspection, the laser positioning device 6 first measures the actual height and angle position of the current cutting tool head and feeds back the measurement data; the lifting mechanism automatically adjusts the height of the placement platform 31 according to the deviation value, and the drive mechanism adjusts the angle of the rotating table 11 to make the cutting tool head accurately aligned with the measurement focus of the laser inspection device 5, thereby ensuring that the cutting tool head of each cutting tool is at the same height and angle position during inspection, achieving efficient and accurate batch inspection.

[0036] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed invention.

Claims

1. A tooling fixture for inspecting the dimensions of cemented carbide cutting tools, comprising a worktable (1), characterized in that, A detection mechanism is connected to one side of the upper end of the workbench (1). The detection mechanism is used to detect the cutting head of the tool. A positioning and clamping mechanism is connected to the side of the upper end of the workbench (1) corresponding to the detection mechanism. The positioning and clamping mechanism includes a mounting cylinder (7), which is flared. The lower end of the mounting cylinder (7) is connected to the upper end of the worktable (1). The upper end of the mounting cylinder (7) is connected to a rotating table (11) through a stabilizing mechanism. The upper end of the rotating table (11) is connected to a limiting cylinder (14). A drive mechanism is provided at the upper end of the worktable (1) corresponding to the rotary table (11). The drive mechanism is used to drive the rotary table (11) to rotate and complete the angle adjustment of the clamping tool. A lifting cavity (18) is provided in the middle of the upper end of the rotary table (11). A lifting mechanism is connected to the lower end of the rotary table (11). The upper end of the lifting mechanism is located inside the lifting cavity (18). The inner wall of the limiting cylinder (14) is a limiting cavity (19). A positioning clamping mechanism is connected to the upper end of the lifting mechanism. The positioning clamping mechanism is located inside the limiting cavity (19).

2. The tooling for detecting the dimensions of cemented carbide cutting tools according to claim 1, characterized in that, The detection mechanism includes a vertical lifting slide rail (2), the lower end of which is connected to one side of the upper end of the worktable (1). A slider (3) is slidably connected to one side of the vertical lifting slide rail (2). Connecting arms (4) are connected to both sides of the slider (3). A laser detection device (5) is connected to one side of each of the two connecting arms (4). The two laser detection devices (5) are used to detect the size of the cutting tool head. A laser positioning device (6) is connected to one side of the slider (3). The laser positioning device (6) is used to position the height and angle of the cutting tool head.

3. The tooling for inspecting the dimensions of cemented carbide cutting tools according to claim 1, characterized in that, The stabilizing mechanism includes a support ring (8), the lower end of which is connected to the upper end of the mounting cylinder (7). The mounting cylinder (7) has a Z-shaped cross-section. A stabilizing rail (9) is connected to the upper end of the mounting cylinder (7). The stabilizing rail (9) is arc-shaped. A slip ring (10) is slidably connected above the stabilizing rail (9). The inner wall of the slip ring (10) is connected to the outer wall of the rotating table (11).

4. The tooling for inspecting the dimensions of cemented carbide cutting tools according to claim 3, characterized in that, The upper end of the support ring (8) is connected to a support ring (12). The inner wall of the support ring (12) is provided with a mounting groove in the circumferential direction. A rotating roller (13) is rotatably connected inside the mounting groove. One side of the rotating roller (13) is in contact with the upper part of the outer wall of the rotating table (11).

5. The tooling for inspecting the dimensions of cemented carbide cutting tools according to claim 1, characterized in that, The driving mechanism includes a rotary motor (15), and the output end of the rotary motor (15) and the lower part of the outer wall of the rotary table (11) are both connected to pulleys (16). The two pulleys (16) are connected by a transmission belt (17).

6. The tooling for detecting the dimensions of cemented carbide cutting tools according to claim 1, characterized in that, The lifting mechanism includes a drive motor (20), the upper end of which is connected to the lower end of the rotary table (11) via a mounting block. The output end of the drive motor (20) is connected to a drive screw (21). The upper end of the drive screw (21) passes through the rotary table (11) and extends into the lifting cavity (18). The outer wall of the drive screw (21) is threaded with a threaded cylinder (22). The outer wall of the threaded cylinder (22) is circumferentially connected with a stabilizing block (23). Each of the multiple stabilizing blocks (23) has a sliding hole on one side. The lower end of the inner wall of the lifting cavity (18) is connected with a stabilizing rod (24) corresponding to the multiple sliding holes. The multiple stabilizing rods (24) are located inside the multiple sliding holes respectively. The multiple stabilizing blocks (23) slide up and down on the outer wall of the multiple stabilizing rods (24).

7. The tooling for inspecting the dimensions of cemented carbide cutting tools according to claim 1, characterized in that, The positioning and clamping mechanism includes a lifting cylinder (25), the lower end of which is connected to the upper end of a threaded cylinder (22). The upper end of the lifting cylinder (25) is connected to a mounting plate (26), and the lower end of the mounting plate (26) is connected to a sliding rod (27). The sliding rod (27) is in the shape of an inverted T. A movable magnetic block (29) is connected to the middle of the lower end of the sliding rod (27). A solenoid block (30) is connected to the middle of the lower end of the inner wall of the lifting cylinder (25). The upper end of the sliding rod (27) extends through to the upper end of the mounting plate (26) and is connected to a placement support (31). The upper end of the mounting plate (26) is circumferentially connected to a clamping mechanism.

8. The tooling for inspecting the dimensions of cemented carbide cutting tools according to claim 7, characterized in that, The mounting plate (26) is connected to a buffer spring (28) at its lower end. The lower end of the buffer spring (28) is connected to the T-shaped end of the slide rod (27). The buffer spring (28) is sleeved onto the outer wall of the slide rod (27). The placement platform (31) is used to place the tool to be tested. There are three sets of clamping mechanisms, which are distributed circumferentially above the mounting plate (26).

9. The tooling for inspecting the dimensions of cemented carbide cutting tools according to claim 8, characterized in that, The clamping mechanism includes a mounting base (32), a clamping jaw (33) is rotatably connected inside the mounting base (32), a pull block (34) is rotatably connected on both sides of the clamping jaw (33), a moving block (35) is rotatably connected between the two pull blocks (34), a moving rod (36) is connected to the lower end of the moving block (35), the lower ends of the two moving rods (36) extend through to the bottom of the mounting plate (26) and are connected to the T-shaped end of the lower end of the slide rod (27), and a buffer pad (37) is connected to one end of the clamping jaw (33).

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