A broken tool detection device and machine tool

By designing a combined structure of support frame and mounting plate, the problem of inconvenient installation of the broken tool detection element on the tool disc is solved, realizing convenient installation and position adjustment of the broken tool detection element, improving the accuracy and applicability of detection, and adapting to the detection of tools of different specifications and sizes.

CN224475949UActive Publication Date: 2026-07-10ZHEJIANG GENESIS MASCH CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ZHEJIANG GENESIS MASCH CO LTD
Filing Date
2025-07-07
Publication Date
2026-07-10

AI Technical Summary

Technical Problem

In the existing technology, the tool breakage detection element is inconvenient to install on the tool turret, especially on some tool magazine brands where it cannot be installed or is inconvenient to install, which affects the effectiveness of tool breakage detection.

Method used

A broken tool detection device was designed, including a support frame, a mounting plate, and a broken tool detection element. By using a combination of fastening holes and fasteners, the broken tool detection element can be detached and its position can be finely adjusted, avoiding direct installation on the cutter head and enhancing its applicability and flexibility.

Benefits of technology

It enables convenient installation and position adjustment of the broken tool detection element, improves the accuracy and applicability of the detection, adapts to the detection needs of tools of different specifications and sizes, and enhances the detection efficiency and reliability.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224475949U_ABST
    Figure CN224475949U_ABST
Patent Text Reader

Abstract

The utility model relates to the field of machine tool, concretely relates to a broken knife detection device and machine tool, including support frame, first mounting plate, second mounting plate and broken knife detection element, is provided first fastening hole along the first direction on the first mounting plate, is provided with second fastening hole on the second mounting plate, first fastening hole and / or second fastening hole are provided with a plurality of along the first direction, pass through first fastening hole and second fastening hole through first fastener, second mounting plate can be detachably installed on the first mounting plate, and broken knife detection element is installed on the second mounting plate. The broken knife detection element is installed on the second mounting plate in the application, avoids the direct installation of the broken knife detection element on the cutter head like the traditional mode, so that the broken knife detection element can conveniently detect the cutter.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

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

[0002] In existing technologies, machine tools are typically equipped with devices to detect tool breakage. Currently, methods for detecting tool breakage include laser-based tool breakage detection and tool breakage detection element detection. Laser-based tool breakage detection is easily affected by water and oil mist during processing. Tool breakage detection elements are usually mounted on the tool turret, but the installation of such elements is influenced by the tool magazine brand. Some tool magazine brands do not support the installation of tool breakage detection elements on the tool turret, making it impossible or inconvenient to install the elements, thus causing inconvenience in the use or installation of tool breakage detection elements.

[0003] Based on the above issues, how to solve the problem of inconvenient use or installation of broken blade detection components is a technical problem that needs to be further solved by those skilled in the art. Utility Model Content

[0004] To address the aforementioned problems, the purpose of this utility model is to provide a broken tool detection device for machine tools.

[0005] The objective of this utility model is achieved through the following technical solution:

[0006] A first aspect of this utility model provides a broken knife detection device, comprising:

[0007] Support frame;

[0008] The first mounting plate is installed on the top of the support frame, and the first mounting plate is provided with the first fastening hole;

[0009] The second mounting plate has a second fastening hole. A first fastener passes through the first fastening hole and the second fastening hole, and the second mounting plate is detachably mounted on the first mounting plate.

[0010] The broken tool detection element is fixedly installed on the second mounting plate, and the detection end of the broken tool detection element is set to correspond to the tool magazine of the machine tool.

[0011] The first fastening hole and / or the second fastening hole are provided in multiple ways along the first direction.

[0012] Furthermore, the first fastening hole and / or the second fastening hole are waist-shaped holes extending along a second direction, which is perpendicular to the first direction, wherein the first fastening hole and the second fastening hole comprise two rows arranged along the second direction.

[0013] Furthermore, a third fastening hole is provided on the second mounting plate, through which the broken knife detection element is fixed on the second mounting plate; wherein, the third fastening hole is an oblong hole extending along a third direction, and the third direction is perpendicular to the first direction and the second direction.

[0014] Furthermore, the support frame includes a column and a bracket body. The column is provided with a fourth fastening hole. The bracket body includes a horizontally arranged first support plate and a vertically arranged second support plate. The first support plate is provided with a fifth fastening hole. A second fastener is inserted into the fourth and fifth fastening holes. The first support plate is detachably mounted on the column. A first mounting plate is vertically arranged on the second support plate along a first direction.

[0015] Furthermore, the fifth fastening hole is an oblong hole extending in a third direction; the first mounting plate and the second support plate are integrally formed.

[0016] Furthermore, the broken blade detection device also includes a reinforcing plate, one side of which is connected to the first support plate, and the other side of which is connected to the second support plate.

[0017] Furthermore, the broken blade detection device also includes a base, on which a support frame is mounted; and / or,

[0018] The broken tool detection element includes a rotatable detection part with a detection end located on the detection part. The detection end detects the corresponding tool on the tool magazine of the machine tool by rotating the detection part.

[0019] A second aspect of this utility model provides a machine tool, including a base, a column, a worktable, a spindle, a tool magazine, and a broken tool detection device of any one of the above. The column and the worktable are mounted on the base, the spindle is mounted on the column and can be moved up and down, and the tool magazine is mounted on the side of the column.

[0020] The broken tool detection device is mounted on a column or base via a base, and is located on the side of the column where the tool magazine is located. The broken tool detection element is used to detect the tools in the tool magazine.

[0021] Furthermore, the machine tool also includes a housing, which is mounted on a column. The tool magazine is located inside the housing, and the support frame is located outside the housing. The broken tool detection element extends into the housing and is configured to correspond to the tools in the tool magazine.

[0022] Furthermore, a doorway is provided on one side of the enclosure away from the column. The doorway is equipped with an openable / closeable door body. A notch is provided on one side of the door body. When the door body is closed, it forms an entrance with the side of the enclosure body. The first mounting plate passes through the entrance and into the enclosure body.

[0023] The beneficial effects of this utility model are as follows: This application sets up a separate tool breakage detection device and mounts the tool breakage detection element on the second mounting plate, avoiding the traditional method of mounting the tool breakage detection element on the tool disc. In actual use, the first mounting plate faces the tool disc, allowing the tool breakage detection element to conveniently detect the tool. Furthermore, by using the second fastening hole in conjunction with different first fastening holes, the position of the tool breakage detection element can be finely adjusted, improving its applicability and facilitating its use. Attached Figure Description

[0024] The accompanying drawings, which are included to provide a further understanding of the present invention and form part of this application, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings:

[0025] Figure 1 This is an exploded structural diagram of the broken knife detection device of this utility model;

[0026] Figure 2 This is a schematic diagram of the assembly structure of the broken knife detection device of this utility model;

[0027] Figure 3 This is a schematic diagram of the structure of the machine tool of this utility model;

[0028] Figure 4 This is a schematic diagram of the structure of the machine tool of this utility model, which includes a housing.

[0029] The attached figures are labeled as follows:

[0030] 1-Support frame, 11-Column, 12-First support plate, 13-Second support plate, 14-Fourth fastening hole, 15-Fifth fastening hole;

[0031] 2-First mounting plate, 21-First fastening hole;

[0032] 3-Second mounting plate, 31-Second fastening hole, 32-Third fastening hole;

[0033] 4-Broken blade detection element, 41-Detection end, 42-Detection section;

[0034] 5-Reinforcing plate;

[0035] 6-Base;

[0036] 100-Base, 200-Column, 300-Worktable, 400-Spindle, 500-Tool Magazine, 600-Box, 601-Door, 700-Oil Tank. Detailed Implementation

[0037] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of the present invention.

[0038] A first aspect of the present invention provides a broken knife detection device, referring to... Figure 1 and Figure 2 The system mainly includes a support frame 1, a first mounting plate 2, a second mounting plate 3, and a broken tool detection element 4. The support frame 1 serves as the basic support structure for the entire bracket, providing a stable mounting base for other components. The first mounting plate 2 is mounted perpendicularly to the support frame 1. The first mounting plate 2 has multiple first fastening holes 21 arranged along a first direction (e.g., the X-axis). The second mounting plate 3 is used to mount the broken tool detection element 4. The second mounting plate 3 has multiple second fastening holes 31 arranged along the first direction. A first fastener passes through the first fastening holes 21 and the second fastening holes 31, allowing the second mounting plate 3 to be detachably mounted on the first mounting plate 2. Different first fastening holes 21 can be matched with different second fastening holes 31, making the relative positions of the first mounting plate 2 and the second mounting plate 3 adjustable.

[0039] The support frame 1 can be cylindrical, square, or plate-shaped. The height of the support frame 1 can be adjusted according to the actual use scenario and installation space. The bottom of the support frame 1 is provided with a mounting base 6, and the base 6 is provided with multiple mounting holes for the support frame 1 to be securely installed on the base 6.

[0040] The first mounting plate 2 is vertically mounted on the support frame 1. The first mounting plate 2 is detachably fastened to the support frame 1, welded onto the support frame 1, or integrally mounted with the support frame 1. Multiple first fastening holes 21 are evenly arranged on the first mounting plate 2 along a first direction, defined as the length direction of the first mounting plate 2. In this embodiment, five first fastening holes 21 are arranged along the first direction, which are used to mate with second fastening holes 31 on the second mounting plate 3. The first fasteners enable the installation and removal of the second mounting plate 3, and the adjustment of the positional relationship between the second mounting plate 3 and the first mounting plate 2. The broken blade detection element 4 is mounted on the second mounting plate 3. Through the mating of the second fastening holes 31 with different first fastening holes 21, the position of the second mounting plate 3 relative to the first mounting plate 2 in the first direction is adjusted.

[0041] The second mounting plate 3 is used to mount the broken tool detection element 4. The detection end 41 of the broken tool detection element 4 is correspondingly set with the tool magazine of the machine tool, and its shape is designed according to the shape and installation requirements of the broken tool detection element 4. In this embodiment, the second mounting plate 3 has an L-shaped structure, that is, a structure formed by two plates arranged perpendicularly. The second mounting plate 3 is detachably mounted on the first mounting plate 2 by passing the first fastening hole 21 and the second fastening hole 31 through the first fastening fastening hole 21. After the bolt passes through the first fastening hole 21 and the second fastening hole 31, it is tightened with a nut on the other side to ensure a stable connection between the second mounting plate 3 and the first mounting plate 2.

[0042] This application provides a separate tool breakage detection device, mounting the tool breakage detection element 4 on the second mounting plate 3, unlike the traditional method of mounting the tool breakage detection element 4 on the tool disc. In actual use, the first mounting plate 2 faces the tool disc, allowing the tool breakage detection element 4 to conveniently detect the tool breakage. Furthermore, by using the second fastening hole 31 in conjunction with different first fastening holes 21, the position of the tool breakage detection element 4 can be fine-tuned, improving its versatility and practicality.

[0043] In one embodiment, reference Figure 1 and Figure 2 The first fastening hole 21 and / or the second fastening hole 31 are oblong holes extending along a second direction (such as the Z-axis direction), which is perpendicular to the first direction. By setting the first fastening hole 21 or the second fastening hole 31 as oblong holes, the first fastener can be adjusted up and down along the oblong hole to adjust the position of the broken tool detection element 4 in the second direction.

[0044] refer to Figure 1 and Figure 2 The first fastening hole 21 on the first mounting plate 2 and the second fastening hole 31 on the second mounting plate 3 are arranged in two rows of oblong holes along the second direction. This layout makes the second mounting plate 3 more stable during installation and adjustment, and can better adapt to the broken knife detection element 4 of different specifications and installation requirements. The first fastening hole 21 is arranged in two rows, which provides multiple possible installation positions for the second mounting plate 3, which can be flexibly selected according to the actual installation requirements of the broken knife detection element 4.

[0045] When inspecting cutting tools of different models and sizes, for some large cutting tools, it may be necessary to install the broken tool detection element 4 at a higher position to comprehensively inspect all parts of the tool. In this case, the operator can select the first fastening hole 21 in the upper row of the first mounting plate 2 to assemble the second mounting plate 3. During the installation process, if the relative position of the detection device and the tool is not ideal in the second direction, the second mounting plate 3 can be finely adjusted in the second direction using the characteristics of the oblong holes to ensure that the detection device is accurately aligned with the detection point of the tool. For some small cutting tools, it may be necessary to install the detection device at a lower position, in which case the first fastening hole 21 in the lower row can be selected. Similarly, necessary adjustments can be made in the second direction according to the actual inspection situation. Through this design of two rows of oblong first fastening holes 21, the broken tool detection element 4 can flexibly adapt to various broken tool inspection needs, improving the efficiency and accuracy of the inspection work.

[0046] In one embodiment, reference Figure 1 and Figure 2 The second mounting plate 3 is also provided with a third fastening hole 32, through which the broken tool detection element 4 is fixed to the second mounting plate 3. The third fastening hole 32 is an oblong hole extending along a third direction (such as the Y-axis). The broken tool detection element 4 is inserted into the third fastening hole 32 by a fastener. When the broken tool detection element 4 is not tightly fixed, the fastener can move along the third fastening hole 32, thereby allowing the position of the broken tool detection element 4 to be finely adjusted along the third direction. The third direction is perpendicular to the first and second directions.

[0047] In one embodiment, reference Figure 1 and Figure 2 The support frame 1 comprises two parts: a column 11 and a support body. This split design facilitates production, transportation, and installation, while also providing convenience for subsequent maintenance and replacement. The column 11 can support the weight of the entire broken blade detection device and the broken blade detection element 4. Multiple fourth fastening holes 14 are provided on the column 11, which are used to connect with the first support plate 12 of the support body.

[0048] The support body can be manufactured using welding technology, comprising a horizontally positioned first support plate 12 and a vertically positioned second support plate 13, forming an overall "L" shape. The first support plate 12 is a rectangular steel plate, and a fifth fastening hole 15 is provided on the first support plate 12 at the position corresponding to the fourth fastening hole 14 on the column 11. A second fastener is inserted into the fourth fastening hole 14 and the fifth fastening hole 15 to achieve a detachable connection between the first support plate 12 and the column 11. The second support plate 13 is also a rectangular steel plate, and is vertically welded to the first support plate 12 for assembling the first mounting plate 2.

[0049] During installation, first align the fifth fastening hole 15 of the first support plate 12 with the appropriate fourth fastening hole 14 on the column 11, then pass the second fastener (such as a bolt) through these two holes and tighten it with a nut on the other side. Ensure that the first support plate 12 is securely installed on the column 11. This detachable connection method allows for convenient and quick operation when it is necessary to replace the support body or maintain the support frame 1. The first mounting plate 2 is vertically mounted on the second support plate 13 along the first direction.

[0050] The design of this support frame 1 makes the broken tool detection device more flexible and maintainable. Through the detachable connection between the first support plate 12 and the column 11, different specifications of the support body can be replaced according to different detection needs, or the support body can be repaired and replaced individually without replacing the entire support frame 1. Simultaneously, the first mounting plate 2 is vertically mounted on the second support plate 13, providing a stable mounting base for the broken tool detection element 4, ensuring the accuracy and reliability of the detection work. Through the above implementation, the support frame 1 of this broken tool detection device has a reasonable structure, is easy to install and adjust, and can meet the needs of tool detection in different scenarios.

[0051] In one embodiment, reference Figure 1 and Figure 2 The fifth fastening hole 15 is an oblong hole extending along a third direction. With the fifth fastening hole 15 being oblong, if the second fastener is inserted into the fourth fastening hole 14 and the fifth fastening hole 15 but not tightened, the first support plate 12 can move along the fifth fastening hole 15 to adjust the position of the support body, thereby realizing the adjustment of the position of the broken knife detection element 4 in the third direction, making the detection of the broken knife detection element 4 more flexible.

[0052] In one embodiment, reference Figure 1 and Figure 2 The first mounting plate 2 and the second support plate 13 are integrated, which saves installation steps for the second mounting plate 3 and the second support plate 13. Furthermore, the integrated design makes the second mounting plate 3 more stable.

[0053] In one embodiment, reference Figure 1 and Figure 2The broken blade detection device also includes a reinforcing plate 5, which is positioned within the right-angled region formed by the first support plate 12 and the second support plate 13. One side of the reinforcing plate 5 is connected to the first support plate 12, and the other side is connected to the second support plate 13, forming a stable triangular support structure. This connection position fully utilizes the stability principle of triangles, enhancing the overall strength of the support structure. The triangular support structure formed by the reinforcing plate 5 effectively distributes the load, transferring some stress to the reinforcing plate 5, greatly enhancing the structural stability of the support structure. This allows the broken blade detection device to withstand the heavier broken blade detection element 4 and various external forces generated during the detection process.

[0054] In one embodiment, reference Figure 1 and Figure 2 The broken tool detection device also includes a base 6, on which a support frame 1 is mounted. In actual use, the base 6 is used to connect the machine tool base 100 or column 200. Other components can also be installed on the base 6, for example, an oil cooler can be arranged on the base 6 to save installation space for the oil tank 700.

[0055] In some implementations, reference Figure 1 and Figure 2 The broken tool detection element 4 includes a rotatable detection section 42, with a detection end 41 located on the detection section 42. Rotation of the detection section 42 allows the detection end 41 to detect the corresponding tool on the machine tool's tool magazine. The rotatable detection section enables the detection end 41 to detect tools at different positions, thereby improving the flexibility and adaptability of the broken tool detection element 4.

[0056] A second aspect of the present invention provides a machine tool, with reference to... Figure 2 and Figure 3 The machine tool mainly includes a base 100, a column 200, a worktable 300, a spindle 400, a tool magazine 500, a broken tool detection element 4, and any one of the above-mentioned broken tool detection devices. These components work together to realize the machine tool's machining and tool detection functions.

[0057] The base 100 is provided with multiple mounting holes and positioning slots for mounting the column 200 and the worktable 300, ensuring the accuracy and firmness of the installation of each component. The column 200 is vertically mounted on one side of the base 100 and is equipped with a guide rail. The spindle 400 moves up and down along the column 200 via a slider that engages with the guide rail, enabling movement of the spindle 400 in a second direction. The worktable 300 is mounted on the base 100, opposite the column 200. The worktable 300 can move upwards in both the first and third directions.

[0058] The tool magazine 500 is located on the side of the column 200 and adopts a disc-type tool magazine 500 structure. The tool magazine 500 is driven by a geared motor to realize the rotation and selection of tools. The tool breakage detection device is mounted on the column 200 or the base 100 via a base 6. For example, the base 6 is fixed to the base 100 by bolts or other fasteners.

[0059] The broken tool detection device is located on the side of the column 200 where the tool magazine 500 is located. This layout facilitates the broken tool detection element 4 in detecting the tools on the tool magazine 500. The distance between the broken tool detection device and the tool magazine 500 is determined according to the detection range of the broken tool detection element 4 and the size of the tool magazine 500, ensuring that the broken tool detection element 4 can clearly detect each tool on the tool magazine 500. The broken tool detection element 4 is mounted on the second mounting plate 3 of the broken tool detection device. Through the design of the first fastening hole 21 on the second mounting plate 3, the broken tool detection element 4 is securely mounted on the second mounting plate 3 using fasteners.

[0060] In one embodiment, reference Figure 2 and Figure 4 The machine tool also includes a housing 600, which is mounted on a column 200. The tool magazine 500 and the broken tool detection element 4 are located inside the housing 600, and the support frame 1 is located outside the housing 600.

[0061] The housing 600 has a doorway on one side away from the column 200. The doorway is equipped with an openable / closeable door 601. The door 601 has a notch on one side. When the door 601 is closed, it forms an entrance with the side of the housing 600. The first mounting plate 2 is located at the entrance. The broken tool detection element 4 extends into the housing 600 and is set to correspond to the tools in the tool magazine 500.

[0062] The housing 600 is generally rectangular in shape, and its dimensions are carefully designed according to the actual size of the tool magazine 500 and the broken tool detection element 4, as well as the operating space requirements, ensuring sufficient installation and operating space for the internal equipment. The housing 600 is securely mounted on the column 200 with high-strength bolts. Multiple precise threaded holes are pre-machined on the side of the column 200, and corresponding mounting holes are also provided at the corresponding positions on the housing 600. The broken tool detection element 4 is mounted on the second mounting plate 3 of the broken tool detection device, and the support frame 1 of the broken tool detection device is located on the outside of the housing 600 and is securely mounted on the column 200 via the base 6. The first mounting plate 2 passes through the entry opening formed when the side door 601 of the housing 600 is closed, allowing the broken tool detection element 4 to be accurately positioned in the appropriate position inside the housing 600.

[0063] A doorway is located on the side of the enclosure 600 away from the column 200. The doorway is fitted with an openable / closable door body 601, with a transparent top to allow observation of the interior of the enclosure 600. A rectangular notch is provided on one side of the door body 601, the size of which is determined based on the width of the first mounting plate 2 and operational requirements; for example, the notch width is 350mm and the height is 550mm. The door body 601 is connected to the enclosure 600 via high-quality stainless steel hinges. These hinges offer excellent wear resistance and flexibility, enabling smooth opening and closing of the door body 601. When the door body 601 is closed, the notch on the door body 601 and the side of the enclosure 600 form an entrance. The dimensions of the entrance are precisely calculated to allow the first mounting plate 2 to pass through. The first mounting plate 2 passes through the entrance into the enclosure 600. The housing 600 has excellent corrosion resistance and sealing properties, which can effectively prevent dust, chips, oil and other impurities from entering, providing a clean and stable working environment for the tool magazine 500 and the broken tool detection element 4, greatly extending the service life of the equipment and reducing the maintenance cost of the equipment.

[0064] The above are merely preferred embodiments of this utility model. It should be noted that, for those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model.

Claims

1. A broken tool detection device, applied to machine tools, characterized in that, include: Support frame (1); A first mounting plate (2) is installed on the top of the support frame (1), and a first fastening hole (21) is provided on the first mounting plate (2); The second mounting plate (3) is provided with a second fastening hole (31). A first fastener passes through the first fastening hole (21) and the second fastening hole (31), and the second mounting plate (3) is detachably mounted on the first mounting plate (2). A broken tool detection element (4) is fixedly installed on the second mounting plate (3), and the detection end (41) of the broken tool detection element (4) is correspondingly set with the tool magazine of the machine tool; The first fastening hole (21) and / or the second fastening hole (31) are provided in a plurality of manner along the first direction.

2. The broken knife detection device according to claim 1, characterized in that, The first fastening hole (21) and / or the second fastening hole (31) are waist-shaped holes extending along a second direction, which is perpendicular to the first direction. The first fastening hole (21) and the second fastening hole (31) include two rows arranged along the second direction.

3. The broken knife detection device according to claim 2, characterized in that, The second mounting plate (3) is also provided with a third fastening hole (32), and the broken knife detection element (4) is fixed on the second mounting plate (3) through the third fastening hole (32); wherein, the third fastening hole (32) is an oblong hole extending along a third direction, and the third direction is perpendicular to the first direction and the second direction.

4. The broken knife detection device according to any one of claims 1-3, characterized in that, The support frame (1) includes a column (11) and a bracket body. The column (11) is provided with a fourth fastening hole (14). The bracket body includes a horizontally arranged first support plate (12) and a vertically arranged second support plate (13). The first support plate (12) is provided with a fifth fastening hole (15). A second fastener is inserted into the fourth fastening hole (14) and the fifth fastening hole (15). The first support plate (12) is detachably installed on the column (11). The first mounting plate (2) is vertically arranged on the second support plate (13) along a first direction.

5. The broken blade detection device according to claim 4, characterized in that, The fifth fastening hole (15) is an oblong hole extending in a third direction; the first mounting plate (2) and the second support plate (13) are integrally formed.

6. The broken blade detection device according to claim 4, characterized in that, It also includes a reinforcing plate (5), one side of which is connected to the first support plate (12), and the other side of which is connected to the second support plate (13).

7. The broken blade detection device according to any one of claims 1-3, characterized in that, It also includes a base (6), on which the support frame (1) is disposed; and / or, The broken tool detection element (4) includes a rotatable detection part (42), and the detection end (41) is located on the detection part (42). The detection end (41) detects the corresponding tool on the tool magazine of the machine tool by rotating the detection part (42).

8. A machine tool, characterized in that, The device includes a base (100), a column (200), a worktable (300), a spindle (400), a tool magazine (500), and a tool breakage detection device as described in any one of claims 1-7. The column (200) and the worktable (300) are mounted on the base (100), the spindle (400) is mounted on the column (200) and can be moved up and down, and the tool magazine (500) is mounted on the side of the column (200). The broken tool detection device is mounted on the column (200) or base (100) via a base (6), and the broken tool detection device is located on the side of the column (200) where the tool magazine (500) is located. The broken tool detection element (4) is used to detect the tools on the tool magazine (500).

9. The machine tool according to claim 8, characterized in that, It also includes a housing (600), which is mounted on the column (200), the tool magazine (500) is located inside the housing (600), the support frame (1) is located outside the housing (600), and the broken tool detection element (4) extends into the housing (600) and is configured to correspond to the tools in the tool magazine (500).

10. The machine tool according to claim 9, characterized in that, The box (600) has a doorway on one side away from the column (200). The doorway is equipped with an openable / closeable door (601). A notch is provided on one side of the door (601). When the door (601) is closed, it forms an entrance with the side of the box (600). The first mounting plate (2) passes through the entrance into the box (600).