Tool length measuring device and tool length measuring method

Abstract

The present invention relates to the technical field of mechanical processing equipment, and in particular to a tool length measuring device and a measuring method thereof. A tool length measuring device comprises a workbench, a base frame is arranged at the bottom of the workbench, and also comprises a tool clamping assembly and a detection assembly. The tool clamping assembly comprises a mounting hole arranged on the workbench, a reference table for placing the tool to be measured is arranged in the mounting hole, a mounting sleeve is arranged below the workbench corresponding to the reference table, a claw for tightening the tool is arranged in the mounting sleeve, a hydraulic cylinder is arranged below the workbench corresponding to the claw, and the output end of the hydraulic cylinder is connected to the claw. The present invention can not only conveniently measure the length of the tool, and the error of the measurement result is small, but also has high safety and is not prone to accidents, thereby being able to meet the needs of the market.

Description

Technical Field

[0001] The invention relates to the technical field of mechanical processing equipment, and in particular to a tool length measuring device and a measuring method thereof. Background Art

[0002] CNC (Computerised Numerical Control Machine) is a computer digital control machine tool, which is an automated machine tool equipped with a program control system, mainly used for large-scale processing parts.

[0003] CNC is generally composed of a host, numerical control device, drive device, auxiliary device, programming and other auxiliary equipment, among which the numerical control device is the core of CNC. Its characteristics are high processing accuracy, multi-coordinate linkage, higher flexibility, high precision, high rigidity, can reduce labor intensity, high quality requirements for operators, and higher technical requirements for maintenance personnel.

[0004] The tool is an indispensable component when CNC machine tools are working. In order to meet the different product process requirements, the processing process needs to frequently replace and install tools of different lengths. When replacing the tool, the length of the tool needs to be measured outside the machine first. At present, operators generally measure the length of the tool manually and enter it manually. However, manual measurement is not only inconvenient to operate, but also has large errors and high accident rate, which cannot meet the needs of the market. Summary of the invention

[0005] The present invention is mainly aimed at the above-mentioned problem and provides a tool length measuring device and a measuring method thereof, which can not only conveniently measure the length of the tool with a small error in the measurement result, but also has high safety and can avoid accidents such as workers inputting wrong data and forgetting to align the tool when manually aligning the tool on the machine. The accident rate is low, thereby being able to meet market demand.

[0006] The purpose of the present invention is mainly achieved through the following scheme: a tool length measuring device, including a workbench, a base frame is arranged at the bottom of the workbench, and also includes a tool clamping assembly and a detection assembly, the tool clamping assembly includes a mounting hole arranged on the workbench, a reference table for placing the tool to be measured is arranged in the mounting hole, a mounting sleeve is arranged below the workbench corresponding to the reference table, a claw for tightening the tool is arranged in the mounting sleeve, a hydraulic cylinder is arranged below the workbench corresponding to the claw, and the output end of the hydraulic cylinder is connected to the claw; The detection component includes a base, a screw is rotatably connected inside the base, a handwheel for driving the screw to rotate is arranged on the top of the base, a lifting block is threadedly connected to the screw, a guide rail is correspondingly arranged on one side of the base, a slider is slidably connected to the guide rail, a slide is arranged on the slider, the slide is connected to the lifting block, a micrometer is arranged on the side of the slide away from the slider, a grating ruler is arranged on the side wall of the base, a reading head on the grating ruler is connected to the slide, and a display is connected to the reading head via a first data transmission line. A base frame is provided at the bottom of the workbench, and the setting of the base frame can support the workbench, and also includes a tool clamping assembly and a detection assembly. The tool clamping assembly includes a mounting hole arranged on the workbench, and a reference platform for placing the measured tool is arranged in the mounting hole. A mounting sleeve is provided below the workbench corresponding to the reference platform, and a claw for tightening the tool is arranged in the mounting sleeve. The claw can clamp the lower end of the tool, and a hydraulic cylinder is provided below the workbench corresponding to the claw. The output end of the hydraulic cylinder is connected to the claw. When the hydraulic cylinder is started, the output end of the hydraulic cylinder can drive the claw to move, so that the claw can drive the tool to move at the same time; the detection assembly includes a vertically set base, and a screw is rotatably connected in the base, and a handwheel for driving the screw to rotate is provided at the top of the base, and a threaded connection is provided on the screw. The lifting block can drive the screw to rotate forward or reverse when the hand wheel is rotated, so that the screw can drive the lifting block to move downward or upward when it rotates forward or reversely. A guide rail is correspondingly arranged on one side of the base, and a slider is slidably connected to the guide rail. A slide is arranged on the slider, and the slide is connected to the lifting block. A micrometer is arranged on the side of the slide away from the slider. A grating ruler is arranged on the side wall of the base. The grating ruler is an existing equipment. The reading head on the grating ruler is connected to the slide. The reading head is a component on the grating ruler. The slide will move up and down with the lifting block, so that the slide can drive the reading head to move at the same time when it moves. A display is connected to the reading head through a first data transmission line. When the reading head moves, the corresponding data will be transmitted to the display through the first data transmission line, which is convenient for the staff to observe.

[0007] Preferably, the number of the guide rails is two, and the two guide rails are correspondingly arranged on the left and right sides of the same side of the base. The number of the guide rails is two, and the two guide rails are correspondingly arranged on the left and right sides of the same side of the base, so that the number of the sliders is also two, so that the slide has higher stability when moving up and down.

[0008] Preferably, the base station is provided with an air pressure detection sensor for detecting the air pressure value generated by the matching gap between the tool being measured and the base station. The base station is provided with an air pressure detection sensor for detecting the air pressure value generated by the matching gap between the tool being measured and the base station. The data detected by the air pressure detection sensor can be used to determine whether the tool handle being measured is tightened, thereby facilitating the next step of operation.

[0009] Preferably, the display is provided with a second data transmission line, which is used to connect to the main control system of the CNC machine tool, so as to facilitate the transmission of the tool length data.

[0010] Preferably, the hydraulic cylinder is arranged on the workbench through a mounting seat, and the hydraulic cylinder is arranged on the workbench through the mounting seat, so that the hydraulic cylinder is stably installed.

[0011] A measuring method of the tool length measuring device comprises the following steps:

[0012] Step 1: The staff first puts the tool to be measured into the reference table;

[0013] Step 2: Clamp the lower end of the tool to be measured with a claw, then start the hydraulic cylinder, and the output end of the hydraulic cylinder drives the claw to move and quickly tighten the tool to be measured;

[0014] Step 3: Start the air pressure detection sensor installed on the reference table to read the air pressure value generated by the matching gap between the measured tool and the reference table to determine whether the measured tool is tightened;

[0015] Step 4: After the tool to be measured is tightened, first move the detection component as a whole so that the micrometer in the detection component corresponds to the position of the reference platform, and then turn the handwheel forward to drive the screw to rotate, so that the lifting block is forced to move downward. When the lifting block moves downward, it will drive the slide and the micrometer to move downward at the same time. When the micrometer contacts the reference platform, it is adjusted so that the reading on the micrometer is 0, and the record on the display connected to the reading head is also cleared;

[0016] Step five, first turn the handwheel in the opposite direction to move the micrometer upward, then move the detection assembly as a whole so that the micrometer moves to the upper end of the corresponding tool to be measured, and then turn the handwheel forward to move the micrometer downward, so that the micrometer contacts the highest point of the tool to be measured. Adjust so that the reading on the micrometer is still 0, and finally read the length data displayed on the display at this time.

[0017] Therefore, a tool length measuring device and a measuring method thereof of the present invention have the following advantages: the present invention is very simple to operate and has good stability during use. It can not only conveniently measure the length of the tool with a small error in the measurement result, but also has high safety and is not prone to accidents, thereby being able to meet market demand. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Attached Figure 1 It is a schematic diagram of the structure of the present invention;

[0019] Attached Figure 2 is an exploded view of the present invention;

[0020] Attached Figure 3 is a cross-sectional view of an exploded view of the knife clamping assembly of the present invention;

[0021] Attached Figure 4 It is a cross-sectional view of the knife clamping assembly in the present invention.

[0022] Illustration description: 1-handwheel, 2-base, 3-guide rail, 4-slide, 5-micrometer, 6-grating scale, 7-measured tool, 8-first data transmission line, 9-reference table, 10-mounting hole, 11-workbench, 12-underframe, 13-display, 14-second data transmission line, 15-air pressure detection sensor, 16-mounting sleeve, 17-pulling claw, 18-mounting seat, 19-hydraulic cylinder, 20-screw, 21-reading head, 22-lifting block, 23-slider. DETAILED DESCRIPTION

[0023] The technical solution of the present invention is further specifically described below through embodiments and in conjunction with the accompanying drawings.

[0024] Example:

[0025] like Figure 1 , 2As shown in Figures 3 and 4, a tool length measuring device comprises a workbench 11, a base frame 12 is arranged at the bottom of the workbench 11, and the setting of the base frame 12 can support the workbench 11, and also comprises a tool clamping assembly and a detection assembly, the tool clamping assembly comprises a mounting hole 10 arranged on the workbench 11, a reference table 9 for placing the tool 7 to be measured is arranged in the mounting hole 10, a mounting sleeve 16 is arranged below the workbench 11 corresponding to the reference table 9, a claw 17 for tightening the tool is arranged in the mounting sleeve 16, and the claw 17 can clamp the lower end of the tool, and a hydraulic cylinder 19 is arranged below the workbench 11 corresponding to the claw 17, and the output end of the hydraulic cylinder 19 is connected to the claw 17. When the hydraulic cylinder 19 is started, the output end of the hydraulic cylinder 19 can drive the claw 17 to move, so that the claw 17 can drive the tool to move at the same time; the detection assembly comprises a vertically set base 2, a screw rod 20 is rotatably connected in the base 2, and a handwheel 1 for driving the screw rod 20 to rotate is arranged at the top of the base 2, and the screw rod 20 is rotated. A lifting block 22 is threadedly connected to the screw 20. When the hand wheel 1 is rotated, it can drive the screw 20 to rotate forward or reverse, so that the screw 20 can drive the lifting block 22 to move downward or upward when it rotates forward or reversely. A guide rail 3 is correspondingly arranged on one side of the base 2. A slider 23 is slidably connected to the guide rail 3. A slide 4 is arranged on the slider 23. The slide 4 is connected to the lifting block 22. A micrometer 5 is arranged on the side of the slide 4 away from the slider 23. A grating ruler 6 is arranged on the side wall of the base 2. The grating ruler 6 is an existing device The grating ruler can be an open linear grating ruler. The reading head 21 on the grating ruler 6 is connected to the slide 4. The reading head 21 is a component on the grating ruler 6. The slide 4 will move up and down with the lifting block 22, so that the slide 4 can drive the reading head 21 to move at the same time when it moves. The reading head 21 is connected to the display 13 through the first data transmission line 8. When the reading head 21 moves, the corresponding data will be transmitted to the display 13 through the first data transmission line 8, which is convenient for the staff to observe.

[0026] There are two guide rails 3, which are correspondingly arranged on the left and right sides of the same side of the base 2, so that there are also two sliders 23, so that the slide 4 has higher stability when moving up and down.

[0027] An air pressure detection sensor 15 is provided in the base table 9 for detecting the air pressure value generated by the fitting gap between the measured tool 7 and the base table 9. The data detected by the air pressure detection sensor 15 can be used to determine whether the measured tool handle is tightened, which helps to proceed to the next step of operation; a second data transmission line 14 is provided on the display 13, and the second data transmission line 14 is used to connect to the main control system of the CNC machine tool, so as to facilitate the transmission of the tool length data; the hydraulic cylinder 19 is set on the workbench 11 through the mounting seat 18, so that the hydraulic cylinder 19 is stably installed.

[0028] A measuring method of the tool length measuring device comprises the following steps:

[0029] Step 1: The staff first places the tool 7 to be measured into the reference table 9;

[0030] Step 2: Clamp the lower end of the tool 7 to be measured with the claw 17, and then start the hydraulic cylinder 19. The output end of the hydraulic cylinder 19 drives the claw 17 to move and quickly tighten the tool 7 to be measured;

[0031] Step 3, start the air pressure detection sensor 15 installed on the reference platform 9, and judge whether the measured tool 7 is tightened by reading the air pressure value generated by the matching gap between the measured tool 7 and the reference platform 9;

[0032] Step 4: After the tool 7 to be measured is tightened, the detection assembly is first moved as a whole so that the micrometer 5 in the detection assembly corresponds to the position of the reference table 9, and then the handwheel 1 is turned forward to drive the screw 20 to rotate, so that the lifting block 22 is forced to move downward. When the lifting block 22 moves downward, it will drive the slide 4 and the micrometer 5 to move downward at the same time. When the micrometer 5 contacts the reference table 9, the reading on the micrometer 5 is adjusted to 0, and the record on the display 13 connected to the reading head 21 is also cleared;

[0033] Step five, first rotate the handwheel 1 in the opposite direction to move the micrometer 5 upward, then move the detection assembly as a whole, so that the micrometer 5 moves to the upper end of the corresponding measured tool 7, and then rotate the handwheel 1 in the forward direction to move the micrometer 5 downward, so that the micrometer 5 contacts the highest point of the measured tool 7, and adjust the reading on the micrometer 5 to still be 0. Finally, read the length data displayed on the display 13 at this time. It can not only conveniently measure the length of the tool, but also has a small error in the measurement result, and is highly safe and not prone to accidents, thereby being able to meet market demand.

[0034] It should be understood that this embodiment is only used to illustrate the present invention and is not used to limit the scope of the present invention. In addition, it should be understood that after reading the content taught by the present invention, those skilled in the art can make various changes or modifications to the present invention, and these equivalent forms also fall within the scope limited by the appended claims of the application.

Claims

1. A tool length measuring device, comprising a workbench, wherein a base frame is provided at the bottom of the workbench, characterized in that: It also includes a tool clamping assembly and a detection assembly, wherein the tool clamping assembly includes a mounting hole arranged on a workbench, a reference table for placing a tool to be measured is arranged in the mounting hole, a mounting sleeve is arranged below the workbench corresponding to the reference table, a claw for tightening the tool is arranged in the mounting sleeve, a hydraulic cylinder is arranged below the workbench corresponding to the claw, and the output end of the hydraulic cylinder is connected to the claw; the detection assembly includes a base, a screw is rotatably connected in the base, a handwheel for driving the screw to rotate is arranged at the top of the base, a lifting block is threadedly connected on the screw, a guide rail is correspondingly arranged on one side of the base, a slider is slidably connected on the guide rail, a slide is arranged on the slide, the slide is connected to the lifting block, a micrometer is arranged on the side of the slide away from the slider, a grating ruler is arranged on the side wall of the base, a reading head on the grating ruler is connected to the slide, and a display is connected to the reading head through a first data transmission line; an air pressure detection sensor for detecting the air pressure value generated by the matching gap between the tool to be measured and the reference table is arranged in the reference table.

2. A tool length measuring device according to claim 1, characterized in that: The number of the guide rails is two, and the two guide rails are correspondingly arranged on the left and right sides of the same side of the base.

3. A tool length measuring device according to claim 1 or 2, characterized in that: The display is provided with a second data transmission line.

4. A tool length measuring device according to claim 1 or 2, characterized in that: The hydraulic cylinder is arranged on the workbench through a mounting seat.

5. A measuring method for a tool length measuring device according to any one of claims 1 to 4, characterized in that: The steps include: Step 1: The staff first puts the tool to be measured into the reference table; Step 2: Clamp the lower end of the tool to be measured with a claw, then start the hydraulic cylinder, and the output end of the hydraulic cylinder drives the claw to move and quickly tighten the tool to be measured; Step 3: Start the air pressure detection sensor installed on the reference table to read the air pressure value generated by the matching gap between the measured tool and the reference table to determine whether the measured tool is tightened; Step 4: After the tool to be measured is tightened, first move the detection component as a whole so that the micrometer in the detection component corresponds to the position of the reference platform, and then turn the handwheel forward to drive the screw to rotate, so that the lifting block is forced to move downward. When the lifting block moves downward, it will drive the slide and the micrometer to move downward at the same time. When the micrometer contacts the reference platform, it is adjusted so that the reading on the micrometer is 0, and the record on the display connected to the reading head is also cleared; Step five, first turn the handwheel in the opposite direction to move the micrometer upward, then move the detection assembly as a whole so that the micrometer moves to the upper end of the corresponding tool to be measured, and then turn the handwheel forward to move the micrometer downward, so that the micrometer contacts the highest point of the tool to be measured. Adjust so that the reading on the micrometer is still 0, and finally read the length data displayed on the display at this time.

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