Knife rest with measuring function and capable of being rapidly switched

By integrating an intermittent motor and a red light rangefinder onto the tool holder, the parallelism between the tool and the machine tool is measured automatically, solving the inconvenience and accuracy problems of tool switching in existing tool holders, and improving machining accuracy and efficiency.

CN224195937UActive Publication Date: 2026-05-05AOKEN CNC EQUIP SUZHOU CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
AOKEN CNC EQUIP SUZHOU CO LTD
Filing Date
2025-05-12
Publication Date
2026-05-05

AI Technical Summary

Technical Problem

The existing tool holder requires manual measurement of the parallelism between the tool and the machine tool plane when switching tools, which is inconvenient to operate and makes it difficult to guarantee accuracy.

Method used

Design a quick-switchable tool post with measurement function. Utilize an intermittent motor to drive the active and driven gears to rotate the tool post disc. Combined with an infrared rangefinder, automatically measure the parallelism between the tool and the machine tool plane to achieve rapid tool switching and accurate measurement.

Benefits of technology

It achieves automation and precise measurement during tool switching, improving machining accuracy and efficiency while reducing errors from manual operation.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN224195937U_ABST
    Figure CN224195937U_ABST
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Abstract

The utility model discloses a knife rest capable of being switched quickly with a measuring function, which belongs to the technical field of knife rests and comprises a mounting frame, an opening is arranged on one side of the mounting frame, a driving part is mounted in the mounting frame and comprises an intermittent motor, a driving gear, a driven gear and a rotating rod, the intermittent motor is mounted in the mounting frame, and the rotating rod is mounted in the mounting frame. The rotating rod rotationally penetrates through the side face of the mounting frame, one end of the rotating rod is fixed to the side face of the driven tooth, a tool rest disc is fixed to the other end of the rotating rod, tool clamps are evenly installed on the circumference of the side face of the tool rest disc, and fixing holes are formed in the side faces of the tool clamps; by means of the mode, the parallelism of the tool and an external machine tool is judged and measured through the vertical distance, and the tool is convenient to use.
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Description

Technical Field

[0001] This utility model relates to the field of tool holder technology, specifically to a quick-switchable tool holder with measurement function. Background Technology

[0002] The tool post is a very important component of a lathe. The tool post is generally a rotary type, with the cutting tool mounted on it circumferentially. It can accommodate radial turning tools, axial turning tools, drills, and boring tools. A few CNC lathes also have a straight-line tool post, where the cutting tools are mounted in a straight line. A good tool post can not only improve machining accuracy but also increase machining speed.

[0003] When switching tools, existing tool holders require measuring the levelness of the tool after switching, i.e., its parallelism with the machine tool plane, to ensure machining accuracy. This ensures that the accuracy meets the requirements and guarantees the quality of subsequent machining. Currently, most measurements are taken manually using a dial indicator, which is inconvenient to use.

[0004] Based on this, the present invention designs a quick-switchable tool holder with measurement function to solve the above problems. Utility Model Content

[0005] In view of the above-mentioned shortcomings of the existing technology, the present invention provides a quick-switchable tool holder with measurement function.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A quick-switchable tool holder with measurement function includes a mounting frame with an opening on one side. A driving component is installed inside the mounting frame, comprising an intermittent motor, a driving gear, a driven gear, and a rotating rod. The intermittent motor is installed inside the mounting frame, the driving gear is located at the end of the output shaft of the intermittent motor, and the driven gear meshes with the driving gear. The rotating rod rotates through the side of the mounting frame and is fixed at one end to the side of the driven gear. A tool holder disk is fixed at the other end of the rotating rod. Tool holders are evenly installed around the side of the tool holder disk, and fixing holes are opened on the side of the tool holders. A measuring plate is installed on the side of the mounting frame, and a red light rangefinder is installed at the center of the top of the measuring plate.

[0008] Furthermore, the diameter of the driven tooth is larger than the diameter of the driving tooth, the diameter of the tool holder disk is larger than the diameter of the driven tooth, and the horizontal center line of the measuring plate and the horizontal center line of the tool holder disk are located on the same vertical plane.

[0009] Furthermore, the active tooth, driven tooth, and tool holder disc are all provided with positioning grooves at the center of one side. The active tooth is connected to the intermittent motor output end through the positioning groove, the driven tooth is connected to one end of the rotating rod through the positioning groove, and the tool holder disc is connected to one end of the rotating rod through the positioning groove. Positioning screws are threadedly connected to each of them.

[0010] Furthermore, the top and bottom of the opening are respectively provided with an upper through groove and a lower slot, and a transparent baffle is inserted into the upper through groove and the lower slot.

[0011] Furthermore, a groove is provided at the center of the top of the measuring plate, a slider slides in the groove, a mounting plate is fixed at the top of the slider, and the red light rangefinder is installed at the center of the top of the mounting plate.

[0012] Furthermore, the groove extends through one side of the measuring plate, and the top of the slider is flush with the top of the groove.

[0013] Furthermore, an adjusting component is installed between the mounting frame and the measuring plate, the adjusting component including a through groove, a sliding groove, a slider, and an auxiliary groove.

[0014] Furthermore, the through groove extends through both sides of the mounting frame, the sliding groove is formed on the inner wall of the through groove, the slide bar is fixed to the side of the measuring plate and slides in cooperation with the sliding groove, and the auxiliary groove is set on the transparent baffle. Beneficial effects

[0015] 1. By setting up a driving component, when tool switching is required, the intermittent motor is started, driving the drive gear to rotate. The cooperation of the drive gear and the driven gear drives the tool holder disk to rotate, switching the tool holder so that the tool to be used is in a horizontal state, thereby realizing rapid tool switching; by setting up a measuring plate and a red light rangefinder, the red light rangefinder measures the vertical distance from the bottom of the tool to the measuring plate. The parallelism between the tool and the external machine tool is judged by the vertical distance, which is easier to use than the traditional manual dial indicator measurement;

[0016] 2. By setting positioning grooves, positioning screws, upper through grooves, lower slots, and transparent baffles, the installation and removal of the driving gear, driven gear, and tool holder disc are facilitated. By setting sliding grooves, sliders, and mounting plates, the position of the infrared rangefinder is further adjusted by the sliding cooperation of the slider and sliding groove. The infrared rangefinder is used to measure the vertical distance from the bottom of the tool to the measuring plate at multiple points, and the parallelism between the tool and the external machine tool is judged by multiple vertical distances. By setting through grooves, sliding grooves, sliding bars, and auxiliary grooves, the position of the measuring plate and the infrared rangefinder can be adjusted according to the length of the tool by the sliding cooperation of the sliding bars and sliding grooves, so that the tool is completely above the measuring plate and the infrared rangefinder can measure the tool. Attached Figure Description

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

[0018] Figure 1 This is a perspective view of the main structure of a quick-change tool holder with measuring function according to the present invention.

[0019] Figure 2 This is a perspective view of the mounting frame structure of a quick-change tool holder with measuring function according to the present invention.

[0020] Figure 3 This is a perspective view of a transparent baffle structure with a quick-change tool holder and a measuring function according to the present invention.

[0021] Figure 4 This is a perspective view of the drive structure of a quick-change tool holder with measurement function according to the present invention.

[0022] Figure 5 This is a perspective view of the active gear structure of a quick-change tool holder with measurement function according to this utility model;

[0023] Figure 6 This is a three-dimensional view of a measuring plate structure with a quick-change tool holder and measuring function according to the present invention.

[0024] The labels in the diagram represent:

[0025] 1. Mounting frame; 2. Opening; 3. Intermittent motor; 4. Driving gear; 5. Driven gear; 6. Rotating rod; 7. Tool holder disc; 8. Tool holder; 9. Fixing hole; 10. Measuring plate; 11. Infrared rangefinder; 12. Positioning groove; 13. Positioning screw; 14. Upper through groove; 15. Lower slot; 16. Transparent baffle; 17. Slide groove; 18. Slider; 19. Mounting plate; 20. Through groove; 21. Sliding groove; 22. Sliding bar; 23. Auxiliary groove. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0027] The present invention will be further described below with reference to the embodiments.

[0028] In some embodiments, please refer to the accompanying drawings. Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 A quick-switchable tool holder with measurement function includes a mounting frame 1. A driving component is installed in the mounting frame 1. The driving component includes an intermittent motor 3, a driving gear 4, a driven gear 5, and a rotating rod 6. The intermittent motor 3 is installed in the mounting frame 1. The driving gear 4 is located at the end of the output shaft of the intermittent motor 3. The driven gear 5 is engaged with the driving gear 4. The rotating rod 6 rotates through the side of the mounting frame 1 and one end is fixed to the side of the driven gear 5. The other end of the rotating rod 6 is fixed to a tool holder disk 7. Tool holders 8 are evenly installed around the side of the tool holder disk 7. Fixing holes 9 are opened on the side of the tool holders 8. A measuring plate 10 is installed on the side of the mounting frame 1. A red light rangefinder 11 is installed at the center of the top of the measuring plate 10.

[0029] In this embodiment of the utility model, during use, the entire device is installed on the external machine tool plane, with the measuring plate 10 parallel to the external machine tool plane. The tool is installed on the tool holder disk 7 using the tool clamp 8 and the fixing hole 9. When it is necessary to switch tools, the intermittent motor 3 is started, which drives the active gear 4 to rotate. The active gear 4 and the driven gear 5 work together to drive the tool holder disk 7 to rotate, thereby switching the tool clamp 8 and making the tool to be used in a horizontal state, thus realizing the rapid switching of tools. After switching, the vertical distance from the bottom of the tool to the measuring plate 10 is measured using the red light rangefinder 11. The parallelism between the tool and the external machine tool is judged by the vertical distance.

[0030] In this embodiment of the utility model, by setting a driving component, when it is necessary to switch tools, the intermittent motor 3 is started, which drives the active gear 4 to rotate. By utilizing the cooperation of the active gear 4 and the driven gear 5, the tool holder disk 7 is driven to rotate, and the tool holder 8 is switched, so that the tool to be used is in a horizontal state, thereby realizing the rapid switching of tools. By setting a measuring plate 10 and a red light rangefinder 11, the red light rangefinder 11 is used to measure the vertical distance from the bottom of the tool to the measuring plate 10. The parallelism between the tool and the external machine tool is judged by the vertical distance, which is easier to use than the traditional manual dial indicator measurement.

[0031] In one embodiment of this utility model, the diameter of the driven tooth 5 is larger than the diameter of the driving tooth 4, and the diameter of the tool holder disk 7 is larger than the diameter of the driven tooth 5. The horizontal center line of the measuring plate 10 and the horizontal center line of the tool holder disk 7 are located on the same vertical plane. The driving tooth 4, the driven tooth 5, and the tool holder disk 7 are all provided with positioning grooves 12 on one side center. The driving tooth 4 is connected to the output end of the intermittent motor 3 through the positioning groove 12, the driven tooth 5 is connected to one end of the rotating rod 6 through the positioning groove 12, and the tool holder disk 7 is connected to one end of the rotating rod 6 through the positioning groove 12. The top and bottom of the opening 2 are respectively provided with an upper through groove 14 and a lower slot 15. A transparent baffle 16 is inserted into the upper through groove 14 and the lower slot 15 to facilitate the loading and unloading of the driving tooth 4, the driven tooth 5, and the tool holder disk 7.

[0032] In some embodiments, such as Figure 2 , Figure 3 and Figure 6 As shown, a groove 17 is provided at the center of the top of the measuring plate 10. The groove 17 extends through one side of the measuring plate 10. A slider 18 slides inside the groove 17. The top of the slider 18 is flush with the top of the groove 17. A mounting plate 19 is fixed to the top of the slider 18. The red light rangefinder 11 is installed at the center of the top of the mounting plate 19. An adjusting component is installed between the mounting frame 1 and the measuring plate 10. The adjusting component includes a through groove 20, a sliding groove 21, a slider 22, and an auxiliary groove 23. The through groove 20 extends through both sides of the mounting frame 1. The sliding groove 21 is opened on the inner wall of the through groove 20. The slider 22 is fixed to the side of the measuring plate 10 and slides in cooperation with the sliding groove 21. The auxiliary groove 23 is provided on the transparent baffle 16.

[0033] In this embodiment of the utility model, during use, the entire device is installed on the external machine tool plane, with the measuring plate 10 parallel to the external machine tool plane. The tool is installed on the tool holder disk 7 using the tool clamp 8 and the fixing hole 9. When it is necessary to switch tools, the intermittent motor 3 is started, driving the active gear 4 to rotate. The active gear 4 and the driven gear 5 work together to drive the tool holder disk 7 to rotate, switching the tool clamp 8 so that the tool to be used is in a horizontal state, thereby realizing the rapid switching of tools. After switching, the position of the measuring plate 10 and the red light rangefinder 11 can be adjusted according to the length of the tool using the sliding cooperation of the slider 22 and the sliding groove 21, so that the tool is completely above the measuring plate 10. Then, the position of the red light rangefinder 11 is further adjusted using the sliding cooperation of the slider 18 and the sliding groove 17. The red light rangefinder 11 is used to measure the vertical distance from the bottom of the tool to the measuring plate 10 at multiple points. The parallelism between the tool and the external machine tool is judged by multiple vertical distances.

[0034] In this embodiment of the utility model, by setting a sliding groove 17, a slider 18, and a mounting plate 19, the position of the red light rangefinder 11 is further adjusted by the sliding cooperation of the slider 18 and the sliding groove 17. The red light rangefinder 11 is used to measure the vertical distance from the bottom of the tool to the measuring plate 10 at multiple points, and the parallelism between the tool and the external machine tool is judged by multiple vertical distances. By setting a through groove 20, a sliding groove 21, a slide bar 22, and an auxiliary groove 23, the position of the measuring plate 10 and the red light rangefinder 11 can be adjusted according to the length of the tool by the sliding cooperation of the slide bar 22 and the sliding groove 21, so that the tool is completely above the measuring plate 10, ensuring that the red light rangefinder 11 can measure the tool.

[0035] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A quick-change tool holder with measurement function, comprising a mounting frame (1), characterized in that: An opening (2) is provided on one side of the mounting frame (1). A driving component is installed inside the mounting frame (1). The driving component includes an intermittent motor (3), a driving gear (4), a driven gear (5), and a rotating rod (6). The intermittent motor (3) is installed inside the mounting frame (1). The driving gear (4) is located at the end of the output shaft of the intermittent motor (3). The driven gear (5) meshes with the driving gear (4). The rotating rod (6) rotates through the side of the mounting frame (1) and one end is fixed to the side of the driven gear (5). The other end of the rotating rod (6) is fixed to a tool holder disk (7). Tool holders (8) are evenly installed around the side of the tool holder disk (7). Fixing holes (9) are opened on the side of the tool holders (8). A measuring plate (10) is installed on the side of the mounting frame (1). A red light rangefinder (11) is installed at the center of the top of the measuring plate (10).

2. The quick-change tool holder with measurement function according to claim 1, characterized in that, The diameter of the driven tooth (5) is greater than the diameter of the driving tooth (4), the diameter of the tool holder disk (7) is greater than the diameter of the driven tooth (5), and the horizontal center line of the measuring plate (10) and the horizontal center line of the tool holder disk (7) are located on the same vertical plane.

3. The quick-change tool holder with measurement function according to claim 2, characterized in that, The active tooth (4), driven tooth (5) and tool holder disk (7) are all provided with a positioning groove (12) at the center of one side. The active tooth (4) is connected to the output end of the intermittent motor (3) through the positioning groove (12), the driven tooth (5) is connected to one end of the rotating rod (6) through the positioning groove (12), and the tool holder disk (7) is connected to one end of the rotating rod (6) through the positioning groove (12). Positioning screws (13) are threadedly connected to one end of the rotating rod (6).

4. The quick-change tool holder with measurement function according to claim 3, characterized in that, The top and bottom of the opening (2) are respectively provided with an upper through groove (14) and a lower slot (15), and a transparent baffle (16) is inserted into the upper through groove (14) and the lower slot (15).

5. The quick-change tool holder with measurement function according to claim 4, characterized in that, The measuring plate (10) has a groove (17) at the top center, a slider (18) slides in the groove (17), and a mounting plate (19) is fixed at the top of the slider (18). The red light rangefinder (11) is installed at the top center of the mounting plate (19).

6. The quick-change tool holder with measurement function according to claim 5, characterized in that, The groove (17) is provided through one side of the measuring plate (10), and the top of the slider (18) is flush with the top of the groove (17).

7. The quick-change tool holder with measurement function according to claim 6, characterized in that, An adjusting component is installed between the mounting frame (1) and the measuring plate (10). The adjusting component includes a through groove (20), a sliding groove (21), a slider (22), and an auxiliary groove (23).

8. The quick-change tool holder with measurement function according to claim 7, characterized in that, The through groove (20) is provided through both sides of the mounting frame (1), the sliding groove (21) is opened on the inner wall of the through groove (20), the slide bar (22) is fixed on the side of the measuring plate (10) and slides in cooperation with the sliding groove (21), and the auxiliary groove (23) is provided on the transparent baffle (16).