Tool setting device of numerical control machine tool

Abstract

The utility model relates to the technical field of numerical control machine tool tool setting equipment, and discloses a numerical control machine tool tool setting device which comprises a workbench and a mounting frame fixedly connected to the outer wall of one side of the workbench, a machine body is mounted on the outer wall of the top of the workbench, a chuck is mounted on the outer wall of the machine body, and a movable plate is arranged on the outer wall of the mounting frame; a limiting sleeve is welded to the outer wall of the movable plate, and a first adjusting mechanism for adjusting the horizontal position of the tool setting gauge is installed on the outer wall of the limiting sleeve. According to the tool setting gauge, the first adjusting mechanism and the second adjusting mechanism are matched with each other, and the position of the tool setting gauge in the vertical direction and the horizontal direction can be adjusted; the adjusting mechanisms are in threaded connection and driven by servo motors, accurate movement of the tool setting gauge is guaranteed, tool setting accuracy is improved, tedious operation that a traditional device needs to be manually moved is omitted, use is easy, and working efficiency is improved.

Description

Technical Field

[0001] The present application relates to the technical field of tool setting equipment for numerically controlled machine tools, and in particular to a tool setting device for numerically controlled machine tools. Background Art

[0002] CNC machine tools are digitally controlled machine tools, which are automated machine tools equipped with a program control system that can logically process programs specified by control codes or other symbolic instructions, decode them, express them in coded numbers, and input them into the CNC device through information carriers. Tool setting is the main operation and important skill in CNC machining, and the accuracy of tool setting can affect the machining accuracy of parts;

[0003] With respect to the above-mentioned related technologies, the inventor believes that, at present, most enterprises still adopt the manual tool setting method, that is, the operator manually moves the tool or the tool setting instrument to make it touch or cut the workpiece, and then observes the on-site situation closely with the naked eye to judge the correctness of the tool setting. This method is not only cumbersome to operate, but also difficult to ensure the accuracy of tool setting, and it is difficult to meet the requirements of modern CNC machine tools for high precision and high efficiency. Therefore, a CNC machine tool tool setting device is proposed to solve the above problems.

[0004] The above information disclosed in the background technology is only used to increase the understanding of the background technology of the present application, and therefore, it may include information that does not constitute the prior art known to ordinary technicians in the field. Utility Model Content

[0005] In order to solve the problems of cumbersome operation and low precision of traditional tool setting devices, the present application provides a tool setting device for CNC machine tools.

[0006] The present application provides a CNC machine tool tool setting device that adopts the following technical solution:

[0007] A tool setting device for a numerically controlled machine tool comprises a workbench and a mounting frame fixedly connected to the outer wall of one side of the workbench, a body is mounted on the top outer wall of the workbench, a chuck is mounted on the outer wall of the body, a sensor is mounted on the axial outer wall of the chuck, a movable plate is arranged on the outer wall of the mounting frame, a limiting sleeve is welded on the outer wall of the movable plate, a second screw is mounted on the inner wall of the limiting sleeve, and a tool setting instrument is fixedly mounted on one end of the second screw away from the inside of the limiting sleeve;

[0008] The outer wall of the limiting sleeve is installed with an adjustment mechanism 1 for adjusting the horizontal position of the tool setting instrument, and the adjustment mechanism 1 includes a worm gear rotatably connected to the end of the limiting sleeve through a bearing seat, and the worm gear is threadedly connected to the outer wall of the second screw rod. The outer wall of the movable plate is fixedly installed with a second servo motor through a fixed plate, and the end of the output shaft of the second servo motor is fixedly connected with a worm, and the worm is meshed with the worm gear;

[0009] The outer wall of the mounting frame is provided with an adjustment mechanism 2 for adjusting the vertical position of the tool setting instrument.

[0010] Preferably, the second adjustment mechanism includes two guide rails fixedly connected to the outer wall of the mounting frame, the outer walls of the two guide rails are slidably connected with sliders, the two sliders are fixedly connected to the movable plate, and the middle outer wall of the mounting frame is rotatably connected to the first screw rod through the shaft seat.

[0011] Preferably, the second adjustment mechanism also includes a nut seat fixedly connected to the outer wall of the middle section of the movable plate, the nut seat is threadedly connected to the outer wall of the first screw rod, and the top outer wall of the mounting frame is fixedly mounted with a first servo motor, and the end of the output shaft of the first servo motor passes through the mounting frame and is fixedly connected to the top end of the first screw rod.

[0012] Preferably, one end of the second screw rod located inside the limiting sleeve is fixedly connected to a movable block, the movable block is slidably connected to the inner wall of the limiting sleeve, and the outer wall of the movable block is fixedly connected to a plurality of limiting blocks.

[0013] Preferably, the inner wall of the limiting sleeve is provided with a plurality of limiting grooves, the plurality of limiting grooves are evenly distributed on the inner wall of the limiting sleeve in a circular array with equal spacing, and the plurality of limiting blocks are slidably connected to the inner walls of the plurality of limiting grooves.

[0014] In summary, this application includes the following beneficial technical effects:

[0015] By cooperating with the adjusting mechanism 1 and the adjusting mechanism 2, the position of the tool setting instrument can be adjusted in the vertical and horizontal directions. Compared with the existing technology, the adjusting mechanisms adopt threaded connection and servo motor drive to ensure the precise movement of the tool setting instrument, thereby improving the tool setting accuracy and eliminating the tedious operation of manual movement required by traditional devices. It is simple to use and improves work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is an overall schematic diagram of an embodiment of the application;

[0017] Figure 2 is a three-dimensional schematic diagram of an embodiment of the application;

[0018] Figure 3 is a partial cross-sectional view of an embodiment of the application;

[0019] Figure 4 for Figure 3 A schematic diagram of the enlarged structure in the middle.

[0020] Explanation of the reference numerals in the accompanying drawings: 1. workbench; 2. machine body; 201. chuck; 202. sensor; 3. mounting frame; 301. guide rail; 302. slider; 303. shaft seat; 304. first screw rod; 305. first servo motor; 4. movable plate; 401. nut seat; 402. limiting sleeve; 403. limiting groove; 404. bearing seat; 405. worm gear; 5. second screw rod; 501. movable block; 502. limiting block; 6. tool setting instrument; 7. second servo motor; 701. fixed plate; 702. worm. DETAILED DESCRIPTION

[0021] The following is combined with Figure 1-4 This application is described in further detail.

[0022] The present application embodiment discloses a tool setting device for a CNC machine tool. Figure 1-4 A tool setting device for a numerical control machine tool comprises a workbench 1 and a mounting frame 3 fixedly connected to the outer wall of one side of the workbench 1, a body 2 is installed on the top outer wall of the workbench 1, a chuck 201 is installed on the outer wall of the body 2, a sensor 202 is installed on the axial outer wall of the chuck 201, a movable plate 4 is arranged on the outer wall of the mounting frame 3, a limiting sleeve 402 is welded on the outer wall of the movable plate 4, a second screw rod 5 is installed on the inner wall of the limiting sleeve 402, a tool setting instrument 6 is fixedly installed on one end of the second screw rod 5 away from the inner part of the limiting sleeve 402, the tool setting instrument 6 is used in conjunction with the sensor 202, the tool setting instrument 6 is electrically connected to the sensor 202, and the sensor 202 is electrically connected to the numerical control system, when the laser emitted by the tool setting instrument 6 is sensed by the sensor 202, it is converted into an electrical signal, and then after signal processing, the position and deviation information of the tool setting instrument 6 are obtained, and then the position and deviation information of the tool setting instrument 6 are transmitted to the numerical control system;

[0023] An adjusting mechanism 1 for adjusting the horizontal position of the tool setting instrument 6 is installed on the outer wall of the limiting sleeve 402. The adjusting mechanism 1 includes a worm gear 405 rotatably connected to the end of the limiting sleeve 402 through a bearing seat 404. The worm gear 405 is threadedly connected to the outer wall of the second screw rod 5. The outer wall of the movable plate 4 is fixedly installed with a second servo motor 7 through a fixed plate 701. The end of the output shaft of the second servo motor 7 is fixedly connected with a worm 702, and the worm 702 is meshed with the worm gear 405. An adjusting mechanism 2 for adjusting the vertical position of the tool setting instrument 6 is installed on the outer wall of the mounting frame 3.

[0024] The second adjustment mechanism includes two guide rails 301 fixedly connected to the outer wall of the mounting frame 3, the outer walls of the two guide rails 301 are slidably connected with sliders 302, the two sliders 302 are fixedly connected to the movable plate 4, and the middle section outer wall of the mounting frame 3 is rotatably connected with the first screw rod 304 through the shaft seat 303.

[0025] The second adjustment mechanism also includes a nut seat 401 fixedly connected to the outer wall of the middle section of the movable plate 4, the nut seat 401 is threadedly connected to the outer wall of the first screw rod 304, and the first servo motor 305 is fixedly installed on the top outer wall of the mounting frame 3. The end of the output shaft of the first servo motor 305 passes through the mounting frame 3 and is fixedly connected to the top of the first screw rod 304.

[0026] One end of the second screw rod 5 located inside the limiting sleeve 402 is fixedly connected with a movable block 501 , the movable block 501 is slidably connected to the inner wall of the limiting sleeve 402 , and the outer wall of the movable block 501 is fixedly connected with a plurality of limiting blocks 502 .

[0027] The inner wall of the limiting sleeve 402 is provided with a plurality of limiting grooves 403 , which are evenly distributed on the inner wall of the limiting sleeve 402 in a circular array with equal spacing, and the plurality of limiting blocks 502 are slidably connected to the inner walls of the plurality of limiting grooves 403 .

[0028] The implementation principle of a tool setting device for a CNC machine tool in the embodiment of the present application is as follows: in actual application, the first servo motor 305 is controlled to start through the adjustment mechanism 1, and the output shaft of the first servo motor 305 drives the first screw rod 304 to rotate on the inner wall thread of the nut seat 401, and drives the nut seat 401 to slide up and down along the outer wall of the first screw rod 304, thereby driving the movable plate 4 to move in the vertical direction. At this time, the movable plate 4 drives the limiting sleeve 402, the second screw rod 5 and the tool setting instrument 6 to move in the vertical direction. It is worth noting that when the movable plate 4 moves, it drives the two sliders 302 to slide on the outer wall of the guide rail 301, which plays a limiting role, ensuring the smooth movement of the movable plate 4 and ensuring the accuracy of the vertical movement of the movable plate 4.

[0029] Then, through the second adjustment mechanism, the second servo motor 7 is controlled to start, and the output shaft of the second servo motor 7 drives the worm 702 to rotate, and the worm 702 rotates on the outer wall of the worm wheel 405. Since the worm 702 is meshed with the worm wheel 405, the worm 702 will drive the worm wheel 405 to rotate when it rotates, and since the worm wheel 405 is fixed and rotated on the end of the limiting sleeve 402 through the bearing seat 404, when the worm wheel 405 rotates, it will rotate the outer wall thread of the second screw rod 5. At this time, the worm wheel 405 drives the second screw rod 5 to retract inside the limiting sleeve 402, and the tool setting at the end of the second screw rod 5 The tool setting instrument 6 moves in the horizontal direction. It is worth noting that when the second screw rod 5 moves, it drives the movable block 501 to slide inside the limiting sleeve 402. The movable block 501 can prevent the second screw rod 5 from being separated from the limiting sleeve 402, and when the movable block 501 slides, it drives the multiple limiting blocks 502 on its outer wall to slide on the inner wall of the limiting groove 403, thereby limiting the second screw rod 5. On the one hand, it can prevent the second screw rod 5 from being driven to rotate by the rotation of the worm gear 405, and on the other hand, it can ensure that the second screw rod 5 does not shake when moving, thereby ensuring the accuracy of the horizontal movement of the tool setting instrument 6.

[0030] When the tool setting instrument 6 gradually approaches the axis of the chuck 201, the laser emitted by the tool setting instrument 6 is sensed by the sensor 202 and converted into an electrical signal. After signal processing, the position and deviation information of the tool setting instrument 6 are obtained, and then the position and deviation information of the tool setting instrument 6 are transmitted to the numerical control system. The numerical control system fine-tunes the position of the tool setting instrument 6 again through the adjustment mechanism 1 and the adjustment mechanism 2 until the side wall of the tool setting collision plate above the tool setting instrument 6 is on the same axis as the axis of the chuck 201 (see Figure 2 ), the tool (not shown in the figure) can be driven by the driving structure inside the CNC machine tool to fit the side wall of the tool setting collision plate, thereby completing the tool setting operation.

[0031] Finally, a few points should be explained: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, which may refer to mechanical connection or electrical connection, or internal communication between two components, or direct connection. "upper", "lower", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the object being described changes, the relative positional relationship may change;

[0032] Secondly: In the drawings of the embodiments disclosed in the present utility model, only the structures related to the embodiments disclosed in the present utility model are involved, and other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of the present utility model can be combined with each other;

[0033] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present utility model should be included in the protection scope of the present utility model.

[0034] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A tool setting device for a numerically controlled machine tool, comprising a workbench (1) and a mounting frame (3) fixedly connected to an outer wall of one side of the workbench (1), characterized in that: The top outer wall of the workbench (1) is provided with a body (2), the outer wall of the body (2) is provided with a chuck (201), the axial outer wall of the chuck (201) is provided with a sensor (202), the outer wall of the mounting frame (3) is provided with a movable plate (4), the outer wall of the movable plate (4) is welded with a limiting sleeve (402), the inner wall of the limiting sleeve (402) is provided with a second screw rod (5), and the end of the second screw rod (5) away from the inside of the limiting sleeve (402) is fixedly provided with a tool setting instrument (6); The outer wall of the limiting sleeve (402) is installed with an adjustment mechanism 1 for adjusting the horizontal position of the tool setting instrument (6), and the adjustment mechanism 1 includes a worm gear (405) rotatably connected to the end of the limiting sleeve (402) through a bearing seat (404), and the worm gear (405) is threadedly connected to the outer wall of the second screw (5), and the outer wall of the movable plate (4) is fixedly installed with a second servo motor (7) through a fixed plate (701), and the end of the output shaft of the second servo motor (7) is fixedly connected with a worm (702), and the worm (702) is meshed with the worm gear (405); The outer wall of the mounting frame (3) is provided with a second adjustment mechanism for adjusting the vertical position of the tool setting instrument (6).

2. A tool setting device for a CNC machine tool according to claim 1, characterized in that: The second adjustment mechanism comprises two guide rails (301) fixedly connected to the outer wall of the mounting frame (3); the outer walls of the two guide rails (301) are slidably connected to sliders (302); the two sliders (302) are fixedly connected to the movable plate (4); and the middle outer wall of the mounting frame (3) is rotatably connected to the first screw rod (304) via a shaft seat (303).

3. A tool setting device for a CNC machine tool according to claim 2, characterized in that: The second adjustment mechanism also includes a nut seat (401) fixedly connected to the outer wall of the middle section of the movable plate (4), the nut seat (401) being threadedly connected to the outer wall of the first screw rod (304), a first servo motor (305) being fixedly mounted on the top outer wall of the mounting frame (3), the output shaft end of the first servo motor (305) passing through the mounting frame (3) and being fixedly connected to the top end of the first screw rod (304).

4. The tool setting device for a CNC machine tool according to claim 1, characterized in that: One end of the second screw rod (5) located inside the limiting sleeve (402) is fixedly connected to a movable block (501), the movable block (501) is slidably connected to the inner wall of the limiting sleeve (402), and the outer wall of the movable block (501) is fixedly connected to a plurality of limiting blocks (502).

5. A tool setting device for a CNC machine tool according to claim 4, characterized in that: The inner wall of the limiting sleeve (402) is provided with a plurality of limiting grooves (403), and the plurality of limiting grooves (403) are evenly distributed on the inner wall of the limiting sleeve (402) in a circular array with equal spacing, and the plurality of limiting blocks (502) are all slidably connected to the inner walls of the plurality of limiting grooves (403).

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