A machine tool cutter length detection device

By designing a relative detection mechanism and a locking auxiliary mechanism, the problem that existing tool length detection devices are difficult to adapt to tools of different specifications has been solved, achieving high-precision and high-efficiency tool length measurement, and improving the convenience and stability of operation.

CN224543993UActive Publication Date: 2026-07-24TIANJIN SHENMING TECHNOLOGY CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
TIANJIN SHENMING TECHNOLOGY CO LTD
Filing Date
2025-08-18
Publication Date
2026-07-24

AI Technical Summary

Technical Problem

Existing tool length detection devices are difficult to adapt to tools of different specifications, especially in multi-axis machining or deep cavity machining. The versatility and stability of the fixing method are insufficient, resulting in inaccurate measurement results.

Method used

A machine tool tool length detection device was designed, comprising a relative detection mechanism, a position locking mechanism, and a locking auxiliary mechanism. Through the combination of components such as a slider, a lifting hydraulic cylinder, an electric actuator, a locking sleeve, and a locking rod, flexible fixing and accurate measurement of tools of different sizes can be achieved.

Benefits of technology

It improves the accuracy and ease of operation of tool length measurement, enhances the stability and adaptability of the inspection process, and ensures the reliability of measurement results.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224543993U_ABST
    Figure CN224543993U_ABST
Patent Text Reader

Abstract

The utility model discloses a machine tool tool length detection device, including detection station, relative detection mechanism, position locking mechanism and locking auxiliary mechanism, the relative detection mechanism includes first support station and second support station, the position locking mechanism includes lock sleeve and lock bar, the locking auxiliary mechanism includes outer swivel ring and positioning spring, and the relative detection mechanism passes through the design of first support station and second support station, and the sliding installation of cooperation first sliding block and second sliding block have realized the accurate adjustment of emission component and receiving component position, and the position locking mechanism adopts the combination design of lock sleeve and lock bar, and realizes the quick locking and unlocking of detection position through the pressure pry block and the embedded block of two ends of rotation board, and the unlocking ring can be pressed to different positions to realize different functions, and the operation is simple and convenient.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model relates to the field of detection technology, and more specifically, to a machine tool cutting tool length detection device. Background Technology

[0002] In existing machine tool technology, tool length detection devices are an indispensable auxiliary device in the CNC machining field to achieve high precision and high efficiency in production. Their main function is to accurately measure the tool length to ensure the accuracy of tool positioning during machining, thereby improving machining quality and reducing scrap rate.

[0003] Currently, many tool length detection devices on the market typically rely on manual or simple clamping structures to fix the tool during the detection process. However, tools themselves come in various shapes and sizes, especially those used in machining centers or composite machine tools, whose shank structures, clamping methods, and weights vary considerably, resulting in insufficient versatility and stability of the fixing methods.

[0004] The length of cutting tools varies considerably, ranging from tens to hundreds of millimeters, especially in multi-axis machining or deep cavity machining, where the use of extra-long tools is common. However, the measuring table structure in existing testing devices is mostly designed with fixed dimensions or limited adjustment range, making it difficult to flexibly adapt to different specifications of cutting tools. Utility Model Content

[0005] (a) Technical problems to be solved

[0006] In view of the problems existing in the prior art, this utility model provides a machine tool tool length detection device to solve the technical problems mentioned in the background art, such as the difficulty in fixing the tool during detection and the difficulty in using the measuring table to accommodate tools of different lengths.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, this utility model provides the following technical solution: a machine tool tool length detection device, comprising a detection platform, a relative detection mechanism, a position locking mechanism, and a locking auxiliary mechanism. The relative detection mechanism includes a first support and a second support. A first slider is slidably mounted on the first support, and a second slider is slidably mounted on the second support. A lifting hydraulic cylinder is mounted on the detection platform, and a support block is mounted at one end of the lifting hydraulic cylinder. An electric push rod is mounted on the first support, and one end of the electric push rod is connected to the first slider. The position locking mechanism includes a locking sleeve and a locking rod. A slot is formed on the side wall of the locking rod. A rotating plate is rotatably mounted on the side wall of the locking sleeve. A pressure pry block and an embedding block are mounted at both ends of the rotating plate. An unlocking ring is longitudinally slidably mounted on the outer wall of the locking sleeve. The unlocking ring can press against the rotating plate, causing the embedding block to embed into the slot. The unlocking ring presses against the pressure pry block, and the embedding block moves away from the slot.

[0009] The present invention is further configured such that the locking auxiliary mechanism includes an outer rotating ring and a positioning spring. The outer rotating ring is rotatably mounted on the outer wall of the lock sleeve. A fixing block is fixedly mounted on the outer wall of the lock sleeve, and a positioning spring is mounted on the fixing block. A positioning groove is opened on the outer rotating ring, and the positioning spring extends into the positioning groove step by step to make the outer rotating ring rotate stably. A rotary push block is installed at the top end of the rotating ring, and a push slope plate is installed at the bottom end of the unlocking ring. The rotation of the rotary push block causes the unlocking ring to move longitudinally, causing the unlocking ring to press against the pressure pry block, causing the embedded block to move away from the slot, and the outer rotating ring to rotate in the opposite direction, so that the unlocking ring obtains longitudinal sliding freedom.

[0010] The present invention is further configured such that a transmitting component is installed at the top end of the first slider, and a receiving component is installed at the top end of the second slider.

[0011] The present invention is further configured such that a longitudinal frame is installed on the side of the testing table, a lead screw assembly is installed on the longitudinal frame, and a transverse block is installed on the lead screw assembly. The longitudinal frame and the lead screw assembly provide a moving track for the transverse block, and the lead screw design enables precise position control.

[0012] The present invention is further configured such that a hydraulic cylinder is installed on the transverse block, and a clamping component is installed at one end of the hydraulic cylinder. The clamping component can push the tool toward the support block. The hydraulic cylinder and the clamping component control the clamping component to clamp the tool and push the tool toward the support block to ensure stable position.

[0013] The present invention is further configured such that a connecting plate is installed on the side wall of the lock sleeve, and the connecting plate is fixedly installed on the second support. The connecting plate firmly connects the lock sleeve to the second support, providing a stable fixing point.

[0014] The present invention is further configured such that the second support is provided with mounting holes, and multiple sets of mounting holes are provided, and one end of the locking rod can pass through different mounting holes and pass through the second slide to engage with the locking sleeve.

[0015] The present invention is further configured such that a guide groove is provided on the side wall of the lock sleeve, and a guide block is installed on the unlocking ring. The guide block is slidably guided within the guide groove. The guide groove and the guide block provide stable guidance for the unlocking ring, restricting the unlocking ring to move only longitudinally and preventing shaking.

[0016] (III) Beneficial Effects

[0017] Compared with the prior art, the present invention provides a machine tool cutting tool length detection device, which has the following beneficial effects:

[0018] This utility model is equipped with a relative detection mechanism. Through the design of the first and second supports, and the sliding installation of the first and second sliders, the relative detection mechanism realizes the precise adjustment of the positions of the transmitting and receiving components. The electric push rod controls the position of the first slider, and the lifting cylinder adjusts the height of the support block, so that the detection system can adapt to tools of different sizes, providing flexibility and accuracy in the detection position and improving the accuracy of tool length measurement.

[0019] This utility model is equipped with a position locking mechanism, which adopts a combination design of a lock sleeve and a locking rod. Through the pressure pry blocks and embedded blocks at both ends of the rotating plate, the detection position can be quickly locked and unlocked. The unlocking ring can be pressed into different positions to achieve different functions. The operation is simple. The locking rod can pass through multiple sets of mounting holes on the second support, which enhances the adaptability of the device, ensures the stability of the position of each component during the detection process, and guarantees the reliability of the measurement results.

[0020] This invention incorporates a locking auxiliary mechanism. Through the cooperation of an outer rotating ring, a positioning spring, a rotary push block, and a push-receiving slope plate, the locking auxiliary mechanism achieves precise control of the unlocking ring's position. The positioning spring's progressively extending design into the positioning groove makes the outer rotating ring's rotation more stable and controllable. The rotary push block and push-receiving slope plate convert the rotational motion into the longitudinal movement of the unlocking ring. The guide groove and guide block provide stable guidance, preventing wobbling and making locking and unlocking operations more convenient and efficient, thus improving the equipment's operability and work efficiency. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of the device in the unused state of this utility model;

[0022] Figure 2 This is a schematic diagram of the relative detection mechanism in this utility model;

[0023] Figure 3 This is a schematic diagram of the receiving method of the receiving station in this utility model;

[0024] Figure 4 This is a schematic diagram of the position locking mechanism and the locking auxiliary mechanism in this utility model;

[0025] Figure 5 This is a schematic diagram of the internal structure of the position locking mechanism and the locking auxiliary mechanism in this utility model.

[0026] In the diagram: 1. Testing platform; 2. First support platform; 3. Second support platform; 4. First slider; 5. Second slider; 6. Lifting cylinder; 7. Support block; 8. Electric actuator; 9. Lock sleeve; 10. Locking rod; 11. Slot; 12. Rotating plate; 13. Pressure pry block; 14. Embedded block; 15. Unlocking ring; 16. Outer rotating ring; 17. Positioning spring; 18. Fixing block; 19. Positioning groove; 20. Rotary push block; 21. Pushing slope plate; 22. Transmitting assembly; 23. Receiving assembly; 24. Longitudinal frame; 25. Lead screw assembly; 26. Lateral movement block; 27. Hydraulic cylinder; 28. Clamping assembly; 29. ​​Connecting plate; 30. Mounting hole; 31. Guide groove; 32. Guide block. Detailed Implementation

[0027] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0028] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0029] In this utility model, unless otherwise stated, the orientations used, such as "up" and "down", usually refer to the direction shown in the accompanying drawings, or to the vertical, perpendicular, or gravitational direction; similarly, for ease of understanding and description, "left" and "right" usually refer to the left and right shown in the accompanying drawings; "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not used to limit this utility model.

[0030] Please see Figures 1-5 A machine tool tool length detection device includes a detection platform 1, a relative detection mechanism, a position locking mechanism, and a locking auxiliary mechanism. The relative detection mechanism includes a first support 2 and a second support 3. A first slider 4 is slidably mounted on the first support 2, and a second slider 5 is slidably mounted on the second support 3. A lifting hydraulic cylinder 6 is mounted on the detection platform 1, and a support block 7 is mounted on one end of the lifting hydraulic cylinder 6. An electric push rod 8 is mounted on the first support 2, and one end of the electric push rod 8 is connected to the first slider 4. The position locking mechanism includes a locking sleeve 9 and a locking rod 10. A slot 11 is formed on the side wall of the locking rod 10. A rotating plate 12 is rotatably mounted on the side wall of the locking sleeve 9. A pressure pry block 13 and an embedding block 14 are mounted on both ends of the rotating plate 12. An unlocking ring 15 is longitudinally slidably mounted on the outer wall of the locking sleeve 9. The unlocking ring 15 can press against the rotating plate 12, so that the embedding block 14 is embedded in the slot 11. The unlocking ring 15 presses against the pressure pry block 13, and the embedding block 14 moves away from the slot 11.

[0031] In this embodiment, the electric actuator 8 is activated, pushing the first slider 4 to slide on the first support 2. The transmitting component 22 on the top of the first slider 4 moves to an appropriate position. The lifting cylinder 6 adjusts the height of the support block 7 so that the tool is placed in a suitable position. The receiving component 23 on the second slider 5 and the transmitting component 22 form a detection alignment. The transmitting component 22 transmits a signal, and the receiving component 23 receives the signal to realize the detection of the tool length. The locking rod 10 passes through the mounting hole 30 on the second slide and cooperates with the locking sleeve 9. When the unlocking ring 15 presses against the rotating plate 12, the embedding block 14 on the rotating plate 12 is embedded in the slot 11 of the locking rod 10. The locking sleeve 9 and the locking rod 10 form a locked state, fixing the position of the second slider 5. When the unlocking ring 15 presses against the pry block 13, the embedding block 14 moves away from the slot 11, realizing unlocking. The locking sleeve 9 is fixedly installed on the second support 3 through the connecting plate 29 to provide stable support.

[0032] The locking auxiliary mechanism includes an outer rotating ring 16 and a positioning spring 17. The outer rotating ring 16 is rotatably mounted on the outer wall of the lock sleeve 9. A fixing block 18 is fixedly mounted on the outer wall of the lock sleeve 9. A positioning spring 17 is mounted on the fixing block 18. A positioning groove 19 is opened on the outer rotating ring 16. The positioning spring 17 extends into the positioning groove 19 step by step to make the outer rotating ring 16 rotate stably. A rotary push block 20 is installed at the top end of the rotating ring. A push slope plate 21 is installed at the bottom end of the unlocking ring 15. The rotation of the rotary push block 20 causes the unlocking ring 15 to move longitudinally, causing the unlocking ring 15 to press against the pry block 13, causing the embedded block 14 to move away from the slot 11. The outer rotating ring 16 is rotated in the opposite direction, so that the unlocking ring 15 obtains longitudinal sliding freedom.

[0033] In this embodiment, the outer rotating ring 16 is rotatably mounted on the outer wall of the lock sleeve 9, and the positioning spring 17 is mounted on the fixing block 18. It can extend into the positioning groove 19 of the outer rotating ring 16 step by step. When the outer rotating ring 16 is rotated, the rotating push block 20 pushes the push slope plate 21 at the bottom of the unlocking ring 15, and the unlocking ring 15 moves longitudinally. Depending on the direction of rotation, it can press against the pressure pry block 13 or the rotating plate 12. When it presses against the pressure pry block 13, the embedded block 14 moves away from the slot 11, thereby unlocking. When the outer rotating ring 16 is rotated in the opposite direction, the unlocking ring 15 gains longitudinal sliding freedom, and the guide block 32 slides in the guide groove 31, providing a stable guiding function.

[0034] Please see Figures 1-5As a supplementary embodiment of a machine tool tool length detection device with a relative detection mechanism, a position locking mechanism, and a locking auxiliary mechanism: a launching assembly 22 is installed at the top end of the first slider 4, and a receiving assembly 23 is installed at the top end of the second slider 5. A longitudinal frame 24 is installed on the side of the detection table 1, a lead screw assembly 25 is installed on the longitudinal frame 24, a transverse block 26 is installed on the lead screw assembly 25, a hydraulic cylinder 27 is installed on the transverse block 26, and a clamping assembly is installed at one end of the hydraulic cylinder 27. The clamping assembly 28 can push the tool against the support block 7. The side wall of the locking sleeve 9 is equipped with a connecting plate 29, and the connecting plate 29 is fixedly installed on the second support 3. The second support 3 has mounting holes 30, and multiple sets of mounting holes 30 are provided. One end of the locking rod 10 can pass through different mounting holes 30 and pass through the second slide to engage with the locking sleeve 9. The side wall of the locking sleeve 9 has a guide groove 31, and the unlocking ring 15 is equipped with a guide block 32, and the guide block 32 is slidably guided in the guide groove 31.

[0035] More specifically, the transverse block 26 moves to the appropriate position under the drive of the lead screw assembly 25 on the longitudinal frame 24. The hydraulic cylinder 27 controls the clamping assembly 28 to clamp the tool to be tested. The tool is pushed against the support block 7 to form a stable support. The electric push rod 8 adjusts the position of the first slider 4, and the launching assembly 22 is in place. The locking rod 10 passes through the appropriate mounting hole 30 and cooperates with the locking sleeve 9 to adjust the position of the second slider 5. The outer rotating ring 16 is rotated through the locking auxiliary mechanism, so that the unlocking ring 15 presses against the rotating plate 12. The embedding block 14 is embedded into the slot 11, locking the position of the second slider 5. The launching assembly 22 emits a signal, and the receiving assembly 23 receives the signal to obtain the tool length data. The outer rotating ring 16 is rotated, the unlocking ring 15 presses against the pressure pry block 13, and the embedding block 14 moves away from the slot 11. The position locking mechanism is unlocked, and the hydraulic cylinder 27 controls the clamping assembly 28 to release the tool. A new tool is replaced, and the measurement process is repeated.

[0036] In summary, when the overall equipment is in use or running: when the relative detection mechanism needs to run, the electric push rod 8 is activated, pushing the first slider 4 to slide on the first support 2. The transmitting component 22 on the top of the first slider 4 moves to the appropriate position. The lifting cylinder 6 adjusts the height of the support block 7 so that the tool is placed in the appropriate position. The receiving component 23 on the second slider 5 and the transmitting component 22 form a detection alignment. The transmitting component 22 transmits a signal, and the receiving component 23 receives the signal to realize the detection of the tool length.

[0037] When the position locking mechanism is running, the locking rod 10 passes through the mounting hole 30 on the second slide and engages with the locking sleeve 9. When the unlocking ring 15 presses against the rotating plate 12, the embedded block 14 on the rotating plate 12 is embedded into the slot 11 of the locking rod 10, and the locking sleeve 9 and the locking rod 10 form a locked state, fixing the position of the second slider 5. When the unlocking ring 15 presses against the pry block 13, the embedded block 14 moves away from the slot 11, realizing unlocking. The locking sleeve 9 is fixedly installed on the second support 3 through the connecting plate 29, providing stable support.

[0038] When the auxiliary locking mechanism is required to operate, the outer rotating ring 16 is limited to rotate and is mounted on the outer wall of the lock sleeve 9. The positioning spring 17 is mounted on the fixed block 18 and can extend into the positioning groove 19 of the outer rotating ring 16 step by step. When the outer rotating ring 16 is rotated, the rotary push block 20 pushes the push slope plate 21 at the bottom of the unlocking ring 15, and the unlocking ring 15 moves longitudinally. Depending on the direction of rotation, it can press against the pressure pry block 13 or the rotating plate 12. When pressed against the pressure pry block 13, the embedded block 14 moves away from the slot 11, thereby unlocking. When the outer rotating ring 16 is rotated in the opposite direction, the unlocking ring 15 gains longitudinal sliding freedom, and the guide block 32 slides in the guide groove 31, providing a stable guiding function.

[0039] The transverse block 26 moves to the appropriate position under the drive of the lead screw assembly 25 on the longitudinal frame 24. The hydraulic cylinder 27 controls the clamping assembly 28 to clamp the tool to be tested. The tool is pushed against the support block 7 to form a stable support. The electric push rod 8 adjusts the position of the first slider 4, and the launching assembly 22 is in place. The locking rod 10 passes through the appropriate mounting hole 30 and cooperates with the locking sleeve 9. The position of the second slider 5 is adjusted. The outer rotating ring 16 is rotated through the locking auxiliary mechanism, so that the unlocking ring 15 presses against the rotating plate 12. The embedding block 14 is embedded into the slot 11, locking the position of the second slider 5. The launching assembly 22 emits a signal, and the receiving assembly 23 receives the signal to obtain the tool length data. The outer rotating ring 16 is rotated, the unlocking ring 15 presses against the pressure pry block 13, and the embedding block 14 moves away from the slot 11. The position locking mechanism is unlocked, and the hydraulic cylinder 27 controls the clamping assembly 28 to release the tool. A new tool is replaced, and the measurement process is repeated.

[0040] Of all the solutions mentioned above, those involving the connection between two components can be selected according to the actual situation, such as welding, bolt and nut connection, bolt or screw connection, or other known connection methods, which will not be elaborated here. For all the fixed connections mentioned above, welding is preferred. Although embodiments of this utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this utility model. The scope of this utility model is defined by the appended claims and their equivalents.

Claims

1. A machine tool tool length detection device, comprising a detection table (1), a relative detection mechanism, a position locking mechanism, and a locking auxiliary mechanism, characterized in that: The relative detection mechanism includes a first support (2) and a second support (3). A first slider (4) is slidably mounted on the first support (2), and a second slider (5) is slidably mounted on the second support (3). A lifting cylinder (6) is mounted on the detection platform (1), and a support block (7) is mounted on one end of the lifting cylinder (6). An electric push rod (8) is mounted on the first support (2), and one end of the electric push rod (8) is connected to the first slider (4). The position locking mechanism includes a locking sleeve (9) and a locking rod (9). 10) A slot (11) is provided on the side wall of the locking rod (10). A rotating plate (12) is rotatably installed on the side wall of the lock sleeve (9). A pry block (13) and an insert block (14) are installed at both ends of the rotating plate (12). An unlocking ring (15) is longitudinally slidably installed on the outer wall of the lock sleeve (9). The unlocking ring (15) can press against the rotating plate (12) so that the insert block (14) is embedded in the slot (11). The unlocking ring (15) presses against the pry block (13) and the insert block (14) moves away from the slot (11).

2. The machine tool cutting tool length detection device according to claim 1, characterized in that: The locking auxiliary mechanism includes an outer rotating ring (16) and a positioning spring (17). The outer rotating ring (16) is rotatably mounted on the outer wall of the lock sleeve (9). A fixing block (18) is fixedly mounted on the outer wall of the lock sleeve (9). A positioning spring (17) is mounted on the fixing block (18). A positioning groove (19) is opened on the outer rotating ring (16). The positioning spring (17) extends into the positioning groove (19) step by step, so that the outer rotating ring (16) rotates stably. A rotary push block (20) is installed at the top end of the rotating ring. A push slope plate (21) is installed at the bottom end of the unlocking ring (15). The rotation of the rotary push block (20) causes the unlocking ring (15) to move longitudinally, so that the unlocking ring (15) presses against the pry block (13), so that the embedded block (14) moves away from the slot (11). The outer rotating ring (16) rotates in the opposite direction, so that the unlocking ring (15) obtains longitudinal sliding freedom.

3. The machine tool cutting tool length detection device according to claim 1, characterized in that: The top end of the first slider (4) is provided with a transmitting component (22), and the top end of the second slider (5) is provided with a receiving component (23).

4. The machine tool cutting tool length detection device according to claim 1, characterized in that: The side of the testing table (1) is provided with a longitudinal frame (24), a lead screw assembly (25) is provided on the longitudinal frame (24), and a transverse block (26) is provided on the lead screw assembly (25).

5. The machine tool cutting tool length detection device according to claim 4, characterized in that: A hydraulic cylinder (27) is installed on the transverse block (26), and a clamping assembly (28) is installed at one end of the hydraulic cylinder (27), and the clamping assembly (28) can push the tool against the support block (7).

6. The machine tool cutting tool length detection device according to claim 1, characterized in that: The side wall of the lock sleeve (9) is provided with a connecting plate (29), and the connecting plate (29) is fixedly installed on the second support (3).

7. The machine tool cutting tool length detection device according to claim 1, characterized in that: The second support (3) has a mounting hole (30) and multiple sets of mounting holes (30). One end of the locking rod (10) can pass through different mounting holes (30) and pass through the second slide to engage with the locking sleeve (9).

8. The machine tool cutting tool length detection device according to claim 1, characterized in that: The lock sleeve (9) has a guide groove (31) on its side wall, and a guide block (32) is installed on the unlocking ring (15), and the guide block (32) is slidably guided within the guide groove (31).