Portable machining center external Z-axis tool setting gauge and method

Abstract

The invention relates to a portable machining center external Z-axis tool setting gauge and a method, and belongs to the field of numerical control machining center external tool setting gauges. The tool apron is fixedly connected with the upper portion of the base, the rotary table is rotationally connected with the upper portion of the base, the detection device fixing base is in threaded connection with the upper portion of the rotary table, and the detection device is installed on the rotary table through the detection device fixing base. The device has the advantages of novel structure, light weight, small size, portability, capability of being placed beside a numerical control system to measure cutter parameters without an external power supply by fixing the detection device on the rotary table and using the working principles of digital detection and mechanical measurement, low configuration cost, visual display of measurement results, high measurement speed and capability of saving cutter setting time by 2 / 3; the tool setting precision reaches 0.01 mm, the measurement precision is high, operation is convenient, and the machining quality is guaranteed.

Description

Technical Field

[0001] This invention belongs to the field of external tool setting devices for CNC machining centers, and particularly relates to a portable external Z-axis tool setting device and method for machining centers. Background Technology

[0002] Currently, the external tool setters used in CNC machining centers require an external power supply, are bulky and heavy, making them impossible for one person to move. Furthermore, these tool setters rely on strong light projection for detection, which places requirements on the working environment. These factors cause inconvenience in daily use. Therefore, there is a need to develop a tool setter that does not require an external power supply, is compact and portable, does not require a dedicated measuring platform, is low-cost, provides intuitive display of measurement results, and is easy to operate, in order to meet the needs of convenient production. Summary of the Invention

[0003] This invention provides a portable external Z-axis tool setter and method for machining centers, to solve the problems of existing methods that require external power supply, are bulky and heavy, rely on strong light projection for detection, and have requirements for the working environment.

[0004] The technical solution adopted in this invention includes a base, a tool holder, a turntable, a detection device mounting base, and a detection device. The tool holder is fixedly connected to the top of the base, the turntable is rotatably connected to the top of the base, the detection device mounting base is threadedly connected to the top of the turntable, and the detection device is mounted on the turntable via the detection device mounting base.

[0005] The base includes a base plate and leveling feet, wherein four leveling feet are fixedly connected to the bottom of the base plate.

[0006] The tool holder includes a tool holder body and screws, wherein the tool holder body is fixedly connected to the base plate of the base by screws.

[0007] The tool holder has an inner conical surface for placing and fixing the tool handle. The outer conical surface of the tool handle and the inner conical surface of the tool holder are at the same angle, which serves as a positioning function.

[0008] The turntable includes a rotatable frustum, a central shaft, a helical bearing, a top cover, countersunk bolts, and ball bearings. The central shaft is fixed to the base plate of the base by the countersunk bolts. The rotatable frustum is rotatably connected to the central shaft by the helical bearing. The top cover presses against the rotatable frustum and has ball bearings between it and the top cover, and is connected to the internal thread of the central shaft.

[0009] The mounting base of the detection device includes a fastening plate and a fastening screw, wherein the fastening plate and the fastening screw are threadedly connected, and the fastening screw is threadedly connected to the rotatable frustum of the turntable for fixing the detection device.

[0010] The testing device includes a connecting base, a column, a vertical moving device with a handwheel, a dial indicator, and a display screen. The bottom of the column is fixedly connected to the top of the connecting base, the vertical moving device with a handwheel is mounted on the column, and the dial indicator and display screen are respectively fixedly connected to the vertical moving device with a handwheel.

[0011] The up-and-down moving device with a handwheel can move up and down along the column by turning the handwheel.

[0012] A method for using a portable external Z-axis tool setter for a machining center includes the following steps: Step 1: Place the tool setter on a platform or stable workbench, fix the reference tool or edge finder on the tool holder, and place the tool holder vertically on the tool holder body. The conical surface of the tool holder and the conical surface of the inner hole of the tool holder are at the same angle to achieve the positioning function. Step 2: Place the connecting seat of the testing device horizontally on the rotatable round table, adjust the connecting seat of the testing device, place the dial indicator head of the test dial indicator directly above the tip of the reference tool being tested, rotate the fastening screw, and press the fastening plate onto the connecting seat of the testing device to fix the testing device. Step 3: Rotate the handwheel to control the up and down movement of the dial indicator. Once the dial indicator head contacts the blade tip, the pointer rotates to confirm that the dial indicator has pressed against the blade tip. When the dial indicator pointer reaches the 0 mark, start the display screen, confirm the value, press the zeroing button, and the testing device will return to the zero position. Step 4: Turn the handwheel to raise the up-and-down moving device with the handwheel. Turning it clockwise will rotate the truncated cone more than 30 degrees, moving the dial indicator head away from the tool tip, and then replacing it with another tool. Step 5: After fixing the other tools to be used to the tool holder, place them vertically on the tool holder body. Rotate the rotating platform counterclockwise until the dial indicator head is directly above the tip of the tool being tested. Then, turn the handwheel to press the dial indicator head onto the tool tip. When the pointer reaches 0, check the value on the display screen, which is the tool compensation value. Manually input this tool compensation value into the machine tool to complete the machining.

[0013] The advantages of this invention are its novel structure, which uses digital detection and mechanical measurement principles by fixing the detection device on the turntable. It does not require an external power supply, is lightweight, compact and portable, and can be placed next to the CNC system to measure tool parameters. It does not require a dedicated measurement platform, has low equipment costs, displays measurement results intuitively, has a fast measurement speed, can save 2 / 3 of tool setting time, achieves tool setting accuracy of 0.01mm, has high measurement accuracy, is easy to operate, and ensures machining quality. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments of the present invention will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the content of the embodiments of the present invention and these drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 yes Figure 1 The left view; Figure 3 This is a structural schematic diagram of the base, tool holder, turntable, and detection device fixing seat assembly of the present invention; Figure 4 This is a schematic diagram of the detection device of the present invention; Figure 5 yes Figure 4 The left view. Detailed Implementation

[0016] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, and not all of the structures.

[0017] like Figure 1 , 2 As shown, it includes a base 1, a tool holder 2, a turntable 3, a detection device mounting base 4, and a detection device 5. The tool holder 2 is fixedly connected to the top of the base 1, the turntable 3 is rotatably connected to the top of the base 1, the detection device mounting base 4 is threadedly connected to the top of the turntable 3, and the detection device 5 is mounted on the turntable 3 through the detection device mounting base 4.

[0018] like Figure 3 As shown, the base 1 includes a base plate 101 and leveling feet 102, wherein four leveling feet 101 are fixedly connected to the lower part of the base plate 101.

[0019] like Figure 3 As shown, the tool holder 2 includes a tool holder body 201 and a screw 202, wherein the tool holder body 201 is fixedly connected to the base plate of the base by the screw 202.

[0020] The tool holder body 201 has an inner conical surface for placing and fixing the tool handle 203. The outer conical surface of the tool handle 203 is at the same angle as the inner conical surface of the tool holder body, which serves as a positioning function.

[0021] like Figure 3As shown, the turntable 3 includes a rotatable frustum 301, a central shaft 302, a helical bearing 303, a top cover 304, countersunk bolts 305, and ball bearings 306. The central shaft 302 is fixed to the base plate of the base by the countersunk bolts 305. The rotatable frustum 301 is rotatably connected to the central shaft 302 by the helical bearing 303. The top cover 304 presses against the rotatable frustum 301 and has ball bearings 306 in between, and is threadedly connected to the central shaft 302.

[0022] like Figure 3 As shown, the detection device mounting base 4 includes a fastening plate 401 and a fastening screw 402, wherein the fastening plate 401 and the fastening screw 402 are threadedly connected, and the fastening screw 402 is threadedly connected to the rotatable frustum 301 of the turntable 3 for fixing the detection device.

[0023] like Figure 4 , 5 As shown, the detection device 5 includes a connecting base 501, a column 502, a vertical moving device 503 with a handwheel, a dial indicator 504, and a display screen 505. The bottom of the column 502 is fixedly connected to the top of the connecting base 501. The vertical moving device 503 with a handwheel is mounted on the column 502. The dial indicator 504 and the display screen 505 are respectively fixedly connected to the vertical moving device 503 with a handwheel.

[0024] The up-and-down moving device 503 with a handwheel can move up and down along the column 502 by rotating the handwheel.

[0025] A method for using a portable external Z-axis tool setter for a machining center includes the following steps: Step 1: Place the tool setter on a platform or stable worktable, such as... Figure 3 As shown, the reference tool 6 or the edge finder is fixed on the tool holder 203. The tool holder is placed vertically on the tool holder body 201. The conical surface of the tool holder and the conical surface of the inner hole of the tool holder are at the same angle, which can play a positioning role. Step 2: As Figure 1 The connecting seat 501 of the detection device 5 shown is horizontally placed on the rotatable round table 301. Adjust the connecting seat of the detection device and place the dial indicator 504 of the test device directly above the tip of the reference tool 6 to be tested. Rotate the fastening screw 402 and the fastening plate 401 presses on the connecting seat of the detection device to fix the detection device. Step 3: As Figure 2 The rotating handwheel shown can control the up-and-down movement of the handwheel-driven moving device 503. As shown by the arrow in the figure, after the dial indicator 504 contacts the knife tip, the pointer rotates to confirm that the dial indicator has pressed against the knife tip. When the dial indicator pointer points to the 0 mark, the display screen 505 is activated to confirm the value. Press the zeroing key to move the detection device to the zero position. Step 4: Turn the handwheel to raise the up-and-down moving device with the handwheel. Turn the rotating truncated cone 301 clockwise by more than 30 degrees to move the dial indicator 504 away from the tool tip and replace it with another tool. Step 5: After fixing the other cutting tools to be used to the tool holder, place them vertically on the tool holder body. Rotate the rotary table 301 counterclockwise until the dial indicator 504 is directly above the tip of the tool being tested. Then, turn the handwheel to press the dial indicator 504 tip onto the tool tip. When the pointer reaches 0, check the value on the display screen, which is the tool compensation value. Manually input this tool compensation value into the machine tool to complete the machining.

[0026] The preferred embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the scope of protection of the present invention is not limited to the specific details in the above embodiments. Within the scope of the technical concept of the present invention, any person skilled in the art can make equivalent substitutions or changes based on the technical solution and inventive concept of the present invention within the scope of the technology disclosed in the present invention. These simple modifications are all within the scope of protection of the present invention.

[0027] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, the present invention will not describe the various possible combinations separately.

Claims

1. A portable external Z-axis tool setter for a machining center, characterized in that: It includes a base, a tool holder, a turntable, a testing device mounting base, and a testing device. The tool holder is fixedly connected to the top of the base, the turntable is rotatably connected to the top of the base, the testing device mounting base is threadedly connected to the top of the turntable, and the testing device is mounted on the turntable via the testing device mounting base.

2. The portable machining center external Z-axis tool setter according to claim 1, characterized in that: The base includes a base plate and leveling feet, wherein four leveling feet are fixedly connected to the bottom of the base plate.

3. The portable machining center external Z-axis tool setter according to claim 1, characterized in that: The tool holder includes a tool holder body and screws, wherein the tool holder body is fixedly connected to the base plate of the base by screws.

4. A portable machining center external Z-axis tool setter according to claim 3, characterized in that: The tool holder has an inner conical surface for placing and fixing the tool handle. The outer conical surface of the tool handle and the inner conical surface of the tool holder are at the same angle, which serves as a positioning function.

5. A portable machining center external Z-axis tool setter according to claim 1, characterized in that: The turntable includes a rotatable frustum, a central shaft, a helical bearing, a top cover, countersunk bolts, and ball bearings. The central shaft is fixed to the base plate of the base by the countersunk bolts. The rotatable frustum is rotatably connected to the central shaft by the helical bearing. The top cover presses against the rotatable frustum and has ball bearings between it and the top cover, and is connected to the internal thread of the central shaft.

6. A portable machining center external Z-axis tool setter according to claim 1, characterized in that: The mounting base of the detection device includes a fastening plate and a fastening screw, wherein the fastening plate and the fastening screw are threadedly connected, and the fastening screw is threadedly connected to the rotatable frustum of the turntable for fixing the detection device.

7. A portable machining center external Z-axis tool setter according to claim 1, characterized in that: The testing device includes a connecting base, a column, a vertical moving device with a handwheel, a dial indicator, and a display screen. The bottom of the column is fixedly connected to the top of the connecting base, the vertical moving device with a handwheel is mounted on the column, and the dial indicator and display screen are respectively fixedly connected to the vertical moving device with a handwheel.

8. A portable machining center external Z-axis tool setter according to claim 7, characterized in that: The up-and-down moving device with a handwheel can move up and down along the column by turning the handwheel.

9. The method of using a portable machining center external Z-axis tool setter as described in any one of claims 1 to 8, characterized in that: Includes the following steps: Step 1: Place the tool setter on a platform or stable workbench, fix the reference tool or edge finder on the tool holder, and place the tool holder vertically on the tool holder body. The conical surface of the tool holder and the conical surface of the inner hole of the tool holder are at the same angle to achieve the positioning function. Step 2: Place the connecting seat of the testing device horizontally on the rotatable round table, adjust the connecting seat of the testing device, place the dial indicator head of the test dial indicator directly above the tip of the reference tool being tested, rotate the fastening screw, and press the fastening plate onto the connecting seat of the testing device to fix the testing device. Step 3: Rotate the handwheel to control the up and down movement of the dial indicator. Once the dial indicator head contacts the blade tip, the pointer rotates to confirm that the dial indicator has pressed against the blade tip. When the dial indicator pointer reaches the 0 mark, start the display screen, confirm the value, press the zeroing button, and the testing device will return to the zero position. Step 4: Turn the handwheel to raise the up-and-down moving device with the handwheel. Turning it clockwise will rotate the truncated cone more than 30 degrees, moving the dial indicator head away from the tool tip, and then replacing it with another tool. Step 5: After fixing the other tools to be used to the tool holder, place them vertically on the tool holder body. Rotate the rotating platform counterclockwise until the dial indicator head is directly above the tip of the tool being tested. Then, turn the handwheel to press the dial indicator head onto the tool tip. When the pointer reaches 0, check the value on the display screen, which is the tool compensation value. Manually input this tool compensation value into the machine tool to complete the machining.

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