Fine boring cutter provided with external display and capable of accurately displaying and adjusting numerical values

Abstract

The invention relates to the field of machining cutters, in particular to a fine boring cutter with an external displayer and capable of accurately displaying adjustment numerical values, the fine boring cutter comprises a body and a cutter head, a sliding hole is formed in the body, a movable shaft is arranged in the sliding hole and is in sliding connection with the sliding hole, one end of the movable shaft is fixedly connected with the cutter head, and the other end of the movable shaft is fixedly connected with the cutter head. A display is fixedly connected to the body, a distance measuring device is arranged between the display and the movable shaft, and the distance measuring device is used for measuring the sliding distance of the movable shaft in the sliding hole and transmitting the distance to the display; the distance measuring device comprises a magnetic railing ruler and a magnetic head, the magnetic head is fixed in the sliding hole, the magnetic head is connected with the displayer, the magnetic railing ruler is fixedly connected with the movable shaft, the magnetic head abuts against the magnetic railing ruler, the magnetic head is used for reading the displacement generated when the movable shaft drives the magnetic railing ruler to slide, and the accurate moving distance of the tool bit is read through the displayer. Therefore, the step of adjusting the precision of the boring cutter is simplified, the adjusting time of the fine boring cutter is shortened, and the effect of improving the adjusting efficiency of the fine boring cutter is achieved.

Description

Technical Field

[0001] The present application relates to the field of machining tools, and in particular to a fine boring tool with an external display capable of accurately displaying adjustment values. Background Art

[0002] At present, boring processing is a common processing method in modern mechanical manufacturing technology, which is widely used in the manufacture of various mechanical parts. When boring, the tool needs to be adjusted according to the size of the processed hole diameter to finally obtain the required size.

[0003] Most of the existing precision boring tools on the market are adjusted by looking at the scale. Since the precision boring tool adopts a threaded auxiliary structure for adjustment, it is necessary to adjust the precision boring tool to the applicable hole size by rotating the corresponding scale. After the precision boring tool is adjusted, it is necessary to check it with a ruler. If an error occurs, it needs to be adjusted again and rechecked.

[0004] The above-mentioned prior art solutions have the following defects: the precision adjustment of the fine boring tool is too complicated, resulting in a long adjustment time and low efficiency. Summary of the invention

[0005] In order to improve the adjustment efficiency of a fine boring tool, the present application provides a fine boring tool with an external display that can accurately display adjustment values.

[0006] The above technical objectives of this application are achieved through the following technical solutions: A fine boring tool with an external display capable of accurately displaying an adjustment value, comprising a body and a tool head, a sliding hole is provided in the body, a movable shaft is provided in the sliding hole, the movable shaft is slidably connected to the sliding hole, one end of the movable shaft is fixedly connected to the tool head, a display is fixedly connected to the body, a distance measuring device is provided between the display and the movable shaft, and the distance measuring device is used to measure the sliding distance of the movable shaft in the sliding hole and transmit the distance to the display; The distance measuring device includes a magnetic scale and a magnetic head. The magnetic head is fixed in the sliding hole, connected to the display, fixedly connected to the movable shaft, abutted against the magnetic scale, and used to read the displacement caused by the movable shaft driving the magnetic scale to slide.

[0007] Furthermore, an adjustment device is provided at the end of the movable shaft away from the cutter head, and the adjustment device includes a rotating joint and a transmission screw. The rotating joint is rotatably connected to the main body, the transmission screw is coaxially arranged with the movable shaft, and a connecting groove is opened at the end of the movable shaft away from the cutter head. The transmission screw is located in the connecting groove, the transmission screw is threadedly connected to the movable shaft, and the transmission screw is fixedly connected to the rotating joint.

[0008] Furthermore, a dial is provided at the rotating joint, the dial is sleeved on the outside of the rotating joint, and the dial is fixedly connected to the body.

[0009] Furthermore, a groove is provided at one end of the rotary joint away from the transmission screw rod, and the groove is plug-fitted with the hexagonal wrench.

[0010] Furthermore, a locking bolt is provided on the main body, the locking bolt is perpendicular to the movable shaft, the locking bolt passes through the side wall of the sliding hole and abuts against the movable shaft, and the locking bolt is threadedly connected to the side wall of the sliding hole.

[0011] Furthermore, the cutter head comprises a cutter seat and a blade, the blade is fixedly connected to the cutter seat, and the cutter seat is fixedly connected to the movable shaft.

[0012] Furthermore, a handle is provided on the body, the handle is fixedly connected to the body, and the handle is used to connect to the driving device.

[0013] Furthermore, the display accuracy of the display is 0.001 mm.

[0014] In summary, this application has the following technical effects: 1. By setting up a display and a distance measuring device, a magnetic head is used to read the displacement caused by the sliding of the magnetic scale driven by the movable shaft, so that the distance measuring device measures the sliding distance of the movable shaft in the sliding hole and transmits it to the display, and the precise distance moved by the tool head is read through the display, thereby simplifying the steps of adjusting the precision of the boring tool, shortening the adjustment time of the fine boring tool, and improving the adjustment efficiency of the fine boring tool; 2. By setting up the adjustment device, the hexagonal wrench is used to drive the rotating joint to rotate, and the rotating joint drives the transmission screw to rotate. The transmission screw is threadedly connected with the movable shaft, so the transmission screw drives the movable shaft to slide in the sliding hole; 3. By setting a locking bolt, after the movable shaft is adjusted, the locking bolt is rotated to abut against the movable shaft, and the movable shaft is fixed in the sliding hole to prevent the cutter head from being displaced during processing. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of a fine boring tool with an external display and capable of accurately displaying adjustment values ​​in the present application; Figure 2 It is a schematic diagram of the structure of the internal distance measurement device of the present application; Figure 3 It is a schematic diagram of the structure of the locking bolt shown in the present application; Figure 4 It is a schematic diagram showing the structure of the cutter head of this application.

[0016] In the figure, 1. main body; 11. sliding hole; 2. cutter head; 21. cutter seat; 22. blade; 3. movable shaft; 4. display; 41. display screen; 5. distance measuring device; 51. magnetic scale; 52. magnetic head; 6. adjusting device; 61. rotating joint; 62. driving screw; 7. dial; 8. locking bolt; 9. handle. DETAILED DESCRIPTION

[0017] The present application is further described in detail below in conjunction with the accompanying drawings.

[0018] Reference Figure 1 and Figure 2 The present embodiment provides a precision boring tool with an external display that can accurately display the adjustment value, including a main body 1 and a tool head 2. A sliding hole 11 is provided in the main body 1, and a movable shaft 3 is provided in the sliding hole 11. The movable shaft 3 is slidably connected to the sliding hole 11, and one end of the movable shaft 3 is fixedly connected to the tool head 2. A display 4 is fixedly connected to the main body 1, and a distance measuring device 5 is provided between the display 4 and the movable shaft 3. The distance measuring device 5 is used to measure the sliding distance of the movable shaft 3 in the sliding hole 11 and transmit it to the display 4.

[0019] Reference Figure 2 and Figure 3 The distance measuring device 5 includes a magnetic scale 51 and a magnetic head 52. The magnetic head 52 is fixed in the sliding hole 11. The magnetic head 52 is connected to the display 4. The magnetic scale 51 is fixedly connected to the movable shaft 3. The magnetic head 52 abuts against the magnetic scale 51. The magnetic head 52 is used to read the displacement caused by the movable shaft 3 driving the magnetic scale 51 to slide.

[0020] The magnetic scale 51 in this embodiment is a ferrite permanent magnetic material with a long service life and extremely low attenuation. The working principle of the magnetic scale 51 is magneto-electric conversion, and a ruler with precisely equidistant magnetization of N and S poles is written on it. The movement of the movable shaft 3 will move with the magnetic scale 51. At this time, the magnetic head 52 reads the displacement of the magnetic scale 51 through the change of magnetic force, thereby determining the displacement of the movable shaft 3.

[0021] Reference Figure 2 and Figure 3An adjusting device 6 is provided at the end of the movable shaft 3 away from the cutter head 2, and the adjusting device 6 includes a rotating joint 61 and a transmission screw 62. The rotating joint 61 is rotatably connected to the body 1, and the transmission screw 62 is coaxially arranged with the movable shaft 3. A connecting groove is provided at the end of the movable shaft 3 away from the cutter head 2, and the transmission screw 62 is located in the connecting groove. The transmission screw 62 is threadedly connected with the movable shaft 3, and the transmission screw 62 is fixedly connected to the rotating joint 61; a dial 7 is provided at the rotating joint 61, and the dial 7 is sleeved on the outside of the rotating joint 61, and the dial 7 is fixedly connected to the body 1; a groove is provided at the end of the rotating joint 61 away from the transmission screw 62, and the groove is plugged into and matched with an inner hexagonal wrench; a limiting device is provided between the movable shaft 3 and the sliding hole 11, and the limiting device is used to limit the movable shaft 3 to only slide but not rotate in the sliding hole 11.

[0022] Reference Figure 3 and Figure 4 A locking bolt 8 is provided on the main body 1, and the locking bolt 8 is perpendicular to the movable shaft 3. The locking bolt 8 passes through the side wall of the sliding hole 11 and abuts against the movable shaft 3. The locking bolt 8 is threadedly connected to the side wall of the sliding hole 11, and the locking bolt 8 is away from the groove and plug-in-matched with the hexagonal wrench.

[0023] Reference Figure 4 The cutter head 2 includes a cutter seat 21 and a blade 22. The blade 22 is fixedly connected to the cutter seat 21, and the cutter seat 21 is fixedly connected to the movable shaft 3. The body 1 is also provided with a handle 9, which is fixedly connected to the body 1 and is used to connect the driving device.

[0024] In this embodiment, the display accuracy of the display 4 is preferably 0.001mm. The display 4 includes a display screen 41. A battery power display is set in the upper right corner of the display screen 41, and a unit display is set in the lower right corner of the display screen 41; a power button is also set on the display 4: a short press to turn on, and a long press to turn off; the display screen 41 of the display 4 will automatically turn off the screen if there is no operation for 40S; an in / mm key is set on the display 4: the in / mm key is used to switch between metric and imperial systems; a zero button is set on the display 4, and the zero button is used to reset the displayed value to zero.

[0025] The implementation principle of a precision boring tool with an external display that can accurately display adjustment values ​​in the embodiment of the present application is as follows: when using the precision boring tool, first install the blade 22 on the tool holder 21, and then fix the tool holder 21 to the movable shaft 3; then rotate the locking bolt 8 to lock the movable shaft 3, and then insert the hexagonal wrench into the groove of the transmission screw 62, rotate the hexagonal wrench to drive the rotating joint 61 to rotate, the rotating joint 61 drives the transmission screw 62 to rotate, and the transmission screw 62 drives the movable shaft 3 to slide in the sliding hole 11, so that the sliding hole 11 drives the cutter head 2 to move; when the movable shaft 3 moves, the movable shaft 3 drives the magnetic scale 51 to slide, and the magnetic head 52 uses the principle of magneto-electric conversion, and the magnetic head 52 changes the displacement of the movable shaft 3 through magnetic force, and transmits the read signal to the display 4, and reads the precise distance moved by the cutter head 2 through the display 4, thereby simplifying the steps of adjusting the precision of the boring tool, shortening the adjustment time of the precision boring tool, and improving the adjustment efficiency of the precision boring tool.

[0026] This specific embodiment is merely an explanation of the present application and is not a limitation of the present application. After reading this specification, those skilled in the art may make modifications to the present embodiment without any creative contribution as needed, but such modifications are protected by the patent law as long as they are within the scope of the claims of the present application.

Claims

1. A fine boring tool with an external display capable of accurately displaying adjustment values, characterized in that: The invention comprises a body (1) and a cutter head (2), wherein a sliding hole (11) is provided in the body (1), a movable shaft (3) is provided in the sliding hole (11), the movable shaft (3) is slidably connected to the sliding hole (11), one end of the movable shaft (3) is fixedly connected to the cutter head (2), a display (4) is fixedly connected to the body (1), a distance measuring device (5) is provided between the display (4) and the movable shaft (3), and the distance measuring device (5) is used to measure the sliding distance of the movable shaft (3) in the sliding hole (11) and transmit the distance to the display (4); The distance measuring device (5) comprises a magnetic scale (51) and a magnetic head (52); the magnetic head (52) is fixed in the sliding hole (11); the magnetic head (52) is connected to the display (4); the magnetic scale (51) is fixedly connected to the movable shaft (3); the magnetic head (52) abuts against the magnetic scale (51); and the magnetic head (52) is used to read the displacement generated by the movable shaft (3) driving the magnetic scale (51) to slide.

2. A fine boring tool with an external display capable of accurately displaying adjustment values ​​according to claim 1, characterized in that: An adjusting device (6) is provided at one end of the movable shaft (3) away from the cutter head (2), the adjusting device (6) comprising a rotating joint (61) and a transmission screw (62), the rotating joint (61) being rotationally connected to the body (1), the transmission screw (62) being coaxially arranged with the movable shaft (3), a connecting groove being provided at one end of the movable shaft (3) away from the cutter head (2), the transmission screw (62) being located in the connecting groove, the transmission screw (62) being threadedly connected to the movable shaft (3), and the transmission screw (62) being fixedly connected to the rotating joint (61).

3. A fine boring tool with an external display capable of accurately displaying adjustment values ​​according to claim 2, characterized in that: The rotary joint (61) is provided with a dial (7), the dial (7) is sleeved on the outside of the rotary joint (61), and the dial (7) is fixedly connected to the body (1).

4. A fine boring tool with an external display capable of accurately displaying adjustment values ​​according to claim 2, characterized in that: A groove is formed at one end of the rotary joint (61) away from the transmission screw rod (62), and the groove is plugged into and matched with a hexagonal wrench.

5. A fine boring tool with an external display capable of accurately displaying adjustment values ​​according to claim 1, characterized in that: The body (1) is provided with a locking bolt (8), which is perpendicular to the movable shaft (3). The locking bolt (8) passes through the side wall of the sliding hole (11) and abuts against the movable shaft (3), and the locking bolt (8) is threadedly connected to the side wall of the sliding hole (11).

6. A fine boring tool with an external display capable of accurately displaying adjustment values ​​according to claim 1, characterized in that: The cutter head (2) comprises a cutter seat (21) and a blade (22); the blade (22) is fixedly connected to the cutter seat (21); and the cutter seat (21) is fixedly connected to the movable shaft (3).

7. A fine boring tool with an external display capable of accurately displaying adjustment values ​​according to claim 1, characterized in that: The body (1) is also provided with a handle (9), which is fixedly connected to the body (1) and is used to connect to a driving device.

8. A fine boring tool with an external display capable of accurately displaying adjustment values ​​according to claim 1, characterized in that: The display accuracy of the display (4) is 0.001 mm.

Images