Numerically-controlled machine tool cutter length measuring device

By designing a CNC machine tool tool length measuring device with a limit component and a pull rope structure, the problems of clamping damage and inconvenient handling were solved, and safe and accurate tool measurement was achieved.

CN223841080UActive Publication Date: 2026-01-27KUNMING SHIPBUILDING EQUIP
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Patent Information

Application Number
CN202520701960.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-15
Publication Date
2026-01-27
Estimated Expiration
2035-04-15

AI Technical Summary

Technical Problem

Existing CNC machine tool tool length measuring devices are prone to damaging the tool during clamping, and are difficult to handle after the clamp is separated from the tool, posing a risk of injury to the operator.

Method used

A CNC machine tool tool length measuring device was designed, comprising a measuring base frame, a loading cylinder, and a limiting mechanism. Through the cooperation of the limiting component and the pull rope, the tool is vertically fixed and safely ejected, avoiding direct contact.

Benefits of technology

This ensures accurate measurements while protecting the cutting tools from damage and eliminating the risk of operators being cut.

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Abstract

The utility model relates to the technical field of cutter measurement, and provides a numerical control machine tool cutter length measuring device which comprises a measuring base frame, a loading cylinder and a limiting mechanism, the loading cylinder is fixedly arranged on the measuring base frame, the limiting mechanism comprises two limiting assemblies and a limiting plate, and the two limiting assemblies are symmetrically arranged on the two sides of the loading cylinder. The limiting assemblies are connected with limiting plates arranged on the inner side of the loading cylinder through pull ropes, when the limiting assemblies move away from the loading cylinder, the limiting plates can be pulled to move upwards, and when the limiting plates move downwards, the limiting assemblies on the two sides can be pulled to move close to the loading cylinder. According to the length measuring device for the cutter of the numerical control machine tool, the service life of the cutter of the numerical control machine tool can be prolonged while the measuring accuracy is guaranteed, and the risk that detection personnel are scratched is completely eradicated.
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Description

Technical Field

[0001] This application relates to the field of tool measurement technology, and in particular to a CNC machine tool tool length measuring device. Background Technology

[0002] A CNC machine tool is an automated machine tool equipped with a program control system. It can move the machine tool and process parts according to a pre-programmed program. The processing tool is also called a cutting tool or cutting tool. The cutting tool can be used to perform various processing on the parts. During processing, the length of the cutting tool needs to be measured in order to select the appropriate cutting tool for processing.

[0003] Chinese patent CN213902156U discloses a CNC machine tool tool length measuring device, including a base plate with a fixed seat on the base plate. The fixed seat has a groove, within which a movable plate and a fixed plate are arranged. Two sets of sliders are mounted on the movable plate and are engaged within the groove. A lead screw passes through one side of the fixed seat, with one end connected to the movable plate via a rubber pad. A support plate is mounted on the fixed seat, with multiple sets of graduated grooves. A movable sleeve is mounted on the support plate, and a limit plate is located at the top of the support plate. A locking bolt is located on one side of the movable sleeve and is connected to the support plate. This technical solution has the following drawbacks: although it can clamp and measure machine tool tools, clamping can damage the tool. Furthermore, after the clamp is separated from the tool, it is inconvenient to hold the root of the tool, making it easy for workers to injure themselves by directly handling the tool tip.

[0004] Therefore, how to provide a more accurate and safer CNC machine tool tool length measuring device has become an urgent technical problem to be solved. Utility Model Content

[0005] In view of this, in order to overcome the shortcomings of the prior art, this application aims to provide a CNC machine tool tool length measuring device.

[0006] This application provides a CNC machine tool tool length measuring device, which includes a measuring base, a loading cylinder, and a limiting mechanism. The loading cylinder is fixedly mounted on the measuring base. The limiting mechanism includes two limiting components and a limiting plate. The two limiting components are symmetrically arranged on both sides of the loading cylinder. The limiting components are connected to the limiting plate located inside the loading cylinder by a pull rope. When the limiting components move away from the loading cylinder, they can pull the limiting plate upward. When the limiting plate moves downward, it can pull the limiting components on both sides closer to the loading cylinder.

[0007] Optionally, in the CNC machine tool tool length measuring device of this application, the measuring base includes a measuring base, a measuring main scale, and measuring jaws. The measuring main scale is vertically arranged at one end of the measuring base, and the measuring jaws are movably sleeved on the measuring main scale. The measuring jaws can be fixed on the measuring main scale by fasteners, and sliding grooves are symmetrically arranged on the upper part of the measuring base.

[0008] Optionally, in the CNC machine tool tool length measuring device of this application, the loading cylinder is set on the measuring base between symmetrically arranged sliding grooves. The loading cylinder is a cylindrical cylinder with one end open, and through holes are symmetrically arranged on the cylinder wall.

[0009] Optionally, in the CNC machine tool tool length measuring device of this application, the axis of the perforation intersects and is perpendicular to the axis of the loading cylinder.

[0010] Optionally, in the CNC machine tool tool length measuring device of this application, the limiting component includes a longitudinal rod and a transverse rod integrally connected to the top of the longitudinal rod, a slide is integrally connected to the bottom of the longitudinal rod, and a clamping part is provided at the end of the transverse rod.

[0011] Optionally, in the CNC machine tool tool length measuring device of this application, the slide is matched with the sliding groove on the measuring base.

[0012] Optionally, in the CNC machine tool tool length measuring device of this application, the clamping part is generally arc-shaped, and multiple balls are arranged on the inner side of the clamping part.

[0013] Optionally, in the CNC machine tool tool length measuring device of this application, the limiting component further includes a limiting spring, one end of which is fixedly connected to the slide block, and the other end of which is fixedly connected to the groove wall of the sliding groove in the direction of the loading cylinder.

[0014] Optionally, in the CNC machine tool tool length measuring device of this application, one end of the pull rope is fixedly connected to the longitudinal rod of the limiting component, and the other end of the pull rope is fixedly connected to the limiting plate inside the loading cylinder through a perforation on the cylinder wall.

[0015] Optionally, in the CNC machine tool tool length measuring device of this application, the limiting plate is generally disc-shaped, the outer diameter of the limiting plate matches the inner diameter of the loading cylinder, and a through tool hole is provided in the center of the limiting plate, with the inner diameter of the tool hole decreasing from top to bottom.

[0016] The CNC machine tool length measuring device of this application, through its comprehensive structural design, ensures that the CNC machine tool remains vertical during measurement, preventing damage to the outer side of the tool by pressure. This guarantees measurement accuracy while extending the tool's lifespan. After measurement, the limiting assembly is pulled open and moved to both sides. The limiting assembly, via a pull rope, pulls the limiting plate upwards, ejecting the CNC machine tool from the loading cylinder. This avoids direct contact between the inspector and the CNC machine tool, eliminating the risk of injury to the inspector. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a structural example diagram of a CNC machine tool tool length measuring device according to an embodiment of this application;

[0019] Figure 2 This is a structural example diagram of a measuring frame for a CNC machine tool tool length measuring device according to an embodiment of this application;

[0020] Figure 3 This is a structural example diagram of the loading cylinder of a CNC machine tool tool length measuring device according to an embodiment of this application;

[0021] Figure 4 This is a structural example diagram of a limiting component of a CNC machine tool tool length measuring device according to an embodiment of this application;

[0022] Figure 5 This is a partial structural example of a CNC machine tool tool length measuring device according to an embodiment of this application;

[0023] Figure 6 This is a structural example diagram of a limiting plate of a CNC machine tool tool length measuring device according to an embodiment of this application;

[0024] Figure 7 This is a schematic diagram illustrating the application principle of a CNC machine tool tool length measuring device according to an embodiment of this application.

[0025] In the figure, 1-measuring base, 2-loading cylinder, 3-limiting mechanism, 4-tool, 11-measuring base, 12-measuring main scale, 13-measuring claw, 14-fastener, 15-sliding groove, 21-perforation, 31-limiting component, 32-limiting plate, 33-pull rope, 311-longitudinal rod, 312-transverse rod, 313-slide block, 314-clamping part, 315-ball bearing, 316-limiting spring, 321-tool hole. Detailed Implementation

[0026] The embodiments of this application will now be described in detail with reference to the accompanying drawings.

[0027] It should be noted that, in the absence of conflict, the following embodiments and features can be combined with each other; and, based on the embodiments of this disclosure, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this disclosure.

[0028] It should be noted that various aspects of embodiments within the scope of the appended claims are described below. It will be apparent that the aspects described herein can be embodied in a wide variety of forms, and any particular structure and / or function described herein is merely illustrative. Based on this disclosure, those skilled in the art will understand that one aspect described herein can be implemented independently of any other aspect, and two or more of these aspects can be combined in various ways. For example, any number of aspects set forth herein can be used to implement the device and / or practice the method. Additionally, this device and / or method can be implemented using structures and / or functionalities other than one or more of the aspects set forth herein.

[0029] Figure 1 This is a structural example diagram of a CNC machine tool tool length measuring device according to an embodiment of this application, as shown below. Figure 1 As shown, in this embodiment, the CNC machine tool tool length measuring device includes a measuring base frame 1, a loading cylinder 2, and a limiting mechanism 3. The loading cylinder 2 is fixedly mounted on the measuring base frame 1. The limiting mechanism 3 includes two limiting components 31 and a limiting plate 32. The two limiting components 31 are symmetrically arranged on both sides of the loading cylinder 2. The limiting components 31 are connected to the limiting plate 32 located inside the loading cylinder 2 by a pull rope 33. When the limiting components 31 move away from the loading cylinder 2, they can pull the limiting plate 32 to move upward. When the limiting plate 32 moves downward, it can pull the limiting components 31 on both sides to move closer to the loading cylinder 2.

[0030] Figure 2 This is a structural example diagram of the measuring frame of a CNC machine tool tool length measuring device according to an embodiment of this application. Figure 1 and Figure 2As shown, in this embodiment, the measuring base 1 includes a measuring base 11, a measuring main scale 12, and a measuring claw 13. The measuring main scale 12 is vertically arranged at one end of the measuring base 11, and the measuring claw 13 is movably sleeved on the measuring main scale 12. The measuring claw 13 can be fixed on the measuring main scale by fasteners 14. Sliding grooves 15 are symmetrically arranged on the upper part of the measuring base 11.

[0031] Figure 3 This is a structural example diagram of the loading cylinder of a CNC machine tool tool length measuring device according to an embodiment of this application, as shown below. Figure 1 , Figure 2 and Figure 3 As shown, in this embodiment, the loading cylinder 2 is set on the measuring base 11 between the symmetrically arranged sliding grooves 15. The loading cylinder 2 is a cylindrical cylinder with one end open. Symmetrical through holes 21 are arranged on the cylinder wall of the loading cylinder 2. The axis of the through holes 21 intersects and is perpendicular to the axis of the loading cylinder 2.

[0032] Figure 4 This is a structural example diagram of a limiting component of a CNC machine tool tool length measuring device according to an embodiment of this application, as shown below. Figure 4 As shown, in this embodiment, the limiting component 31 includes a longitudinal rod 311 and a transverse rod 312 integrally connected to the top of the longitudinal rod 311. A slide block 313 is integrally connected to the bottom of the longitudinal rod 311, and a clamping part 314 is provided at the end of the transverse rod 312. Figure 4 As shown, in this embodiment, the clamping part 314 is generally arc-shaped, and a plurality of balls 315 are provided on the inner side of the clamping part 314. In practical applications, a plurality of ball grooves are provided on the inner side of the clamping part 314, and balls 315 are assembled in the ball grooves.

[0033] Figure 5 This is a partial structural example diagram of a CNC machine tool tool length measuring device according to an embodiment of this application, as shown below. Figures 1 to 5 As shown, in this embodiment, the slide 313 matches the sliding groove 15 on the measuring base 11. The limiting component 31 also includes a limiting spring 316. One end of the limiting spring 316 is fixedly connected to the slide 313, and the other end of the limiting spring 316 is fixedly connected to the groove wall of the sliding groove 15 in the direction close to the loading cylinder 2.

[0034] In this embodiment, one end of the pull rope 33 is fixedly connected to the longitudinal rod 311 of the limiting component 31, and the other end of the pull rope 33 is fixedly connected to the limiting plate 32 inside the loading cylinder 2 through the perforation 21 on the cylinder wall of the loading cylinder 2.

[0035] Figure 6 This is a structural example diagram of a limiting plate of a CNC machine tool tool length measuring device according to an embodiment of this application, as shown below. Figure 6As shown, in this embodiment, the limiting plate 32 is generally disc-shaped, and the outer diameter of the limiting plate 32 matches the inner diameter of the loading cylinder 2. A through-hole 321 is provided in the center of the limiting plate 32, and the inner diameter of the 321 decreases from top to bottom.

[0036] Figure 7 This is a schematic diagram illustrating the application principle of a CNC machine tool tool length measuring device according to an embodiment of this application. Figures 1 to 7 As shown, in this embodiment, when measuring a CNC machine tool tool, the measuring jaw 13 is first moved upward and fixed by the fastener 14. The CNC machine tool tool 4 to be measured is then placed through the clamping part 314 onto the limiting plate 32 in the loading cylinder 2. The bottom of the CNC machine tool tool 4 matches the tool hole 321 of the limiting plate 32. Under its own weight, the CNC machine tool cutter 4 pushes the limiting plate 32 downward. The limiting plate 32 drives the limiting components 31 on both sides to move towards the middle through the pull rope 33, so that the clamping part 314 on the upper part of the limiting component 31 converges towards the middle, and the ball bearing 315 on the inner side of the clamping part 314 fits against the outer wall of the CNC machine tool cutter 4 to fix the CNC machine tool cutter 4. When the limiting plate 32 contacts the inner bottom of the loading cylinder 2, the bottom of the CNC machine tool cutter 4 is aligned with the 0 mark of the measuring scale 12. The fastener 14 is loosened, and the measuring jaw 13 is aligned with the upper end of the CNC machine tool cutter 4. The measuring jaw 13 is fixed by the fastener 14. The measuring jaw 13 is equipped with a vernier scale line. The length of the CNC machine tool cutter 4 is measured by reading the scale of the measuring scale 12 and the measuring jaw 13.

[0037] In practical applications, the CNC machine tool tool length measuring device of this embodiment keeps the CNC machine tool tool 4 vertical during measurement, preventing damage to the outer side of the CNC machine tool tool 4 by pressure. This ensures measurement accuracy while improving the lifespan of the CNC machine tool tool 4. After measurement, the limiting component 31 is pulled open and moved to both sides. The limiting component 31 pulls the limiting plate 32 upward via the pull rope 33, pushing the CNC machine tool tool 4 out of the loading cylinder 2 through the limiting plate 32. This avoids direct contact between the inspection personnel and the CNC machine tool tool 4, eliminating the risk of injury to the inspection personnel.

[0038] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A CNC machine tool tool length measuring device, characterized in that, The CNC machine tool tool length measuring device includes a measuring base frame, a loading cylinder, and a limiting mechanism. The loading cylinder is fixedly mounted on the measuring base frame. The limiting mechanism includes two limiting components and a limiting plate. The two limiting components are symmetrically arranged on both sides of the loading cylinder. The limiting components are connected to the limiting plate located inside the loading cylinder by a pull rope. When the limiting components move away from the loading cylinder, they can pull the limiting plate upward. When the limiting plate moves downward, it can pull the limiting components on both sides closer to the loading cylinder.

2. The CNC machine tool tool length measuring device according to claim 1, characterized in that, The measuring base includes a measuring base, a measuring main scale, and measuring claws. The measuring main scale is vertically set at one end of the measuring base, and the measuring claws are movably fitted onto the measuring main scale. The measuring claws can be fixed onto the measuring main scale by fasteners. Sliding grooves are symmetrically arranged on the upper part of the measuring base.

3. The CNC machine tool tool length measuring device according to claim 2, characterized in that, The loading cylinder is set on a measuring base between symmetrically arranged sliding grooves. The loading cylinder is a cylindrical body with one end open, and through holes are symmetrically arranged on the cylinder wall.

4. The CNC machine tool tool length measuring device according to claim 3, characterized in that, The axis of the perforation intersects and is perpendicular to the axis of the loading cylinder.

5. The CNC machine tool tool length measuring device according to claim 4, characterized in that, The limiting assembly includes a longitudinal rod and a transverse rod integrally connected to the top of the longitudinal rod. A slide is integrally connected to the bottom of the longitudinal rod, and a clamping part is provided at the end of the transverse rod.

6. The CNC machine tool tool length measuring device according to claim 5, characterized in that, The slide block matches the sliding groove on the measuring base.

7. The CNC machine tool tool length measuring device according to claim 6, characterized in that, The clamping part is arc-shaped, and multiple balls are arranged on the inner side of the clamping part.

8. The CNC machine tool tool length measuring device according to claim 7, characterized in that, The limiting assembly also includes a limiting spring, one end of which is fixedly connected to the slide block, and the other end of which is fixedly connected to the groove wall of the sliding groove in the direction of the loading cylinder.

9. The CNC machine tool tool length measuring device according to claim 8, characterized in that, One end of the pull rope is fixedly connected to the longitudinal rod of the limiting component, and the other end of the pull rope is fixedly connected to the limiting plate inside the loading cylinder through a perforation on the cylinder wall.

10. The CNC machine tool tool length measuring device according to claim 9, characterized in that, The limiting plate is disc-shaped, and its outer diameter matches the inner diameter of the loading cylinder. A through-hole is provided in the center of the limiting plate, and the inner diameter of the cutting hole decreases from top to bottom.

Citation Information

Patent Citations

  • Numerically-controlled machine tool cutter length measuring device

    CN213902156U