Milling tool wear on-line detection device

Abstract

The utility model particularly relates to a milling cutter wear on-line detection device, which relates to the technical field of milling cutter detection and comprises a bottom plate, driving assemblies are symmetrically arranged at the bottom of the bottom plate, threaded blocks are in threaded connection with the driving assemblies, a first hydraulic push rod is fixedly mounted at the top of each threaded block, and a second hydraulic push rod is fixedly mounted at the bottom of each first hydraulic push rod. A cross beam is fixedly connected between the tops of the two first hydraulic push rods, a device plate is fixedly connected to the front end of the cross beam, a milling assembly is arranged on the top of the device plate, a vertical plate is fixedly connected between the left end and the right end of the device plate, a first mounting plate is fixedly connected to the front end of the vertical plate, and a plurality of cameras are arranged on one side wall of the mounting plate. And an air injection assembly is arranged on the side wall of the second mounting plate, before the device performs detection operation, the tool end of the milling assembly is cleaned by means of the air injection assembly and a water absorption sponge, so that the influence of attached chippings and cooling liquid on the camera shooting effect is reduced, and the detection precision of the device is improved to a certain extent.

Description

Technical Field

[0001] The utility model relates to the technical field of milling tool detection, in particular to an online detection device for milling tool wear. Background Art

[0002] In CNC machining, a very critical technology is the milling tool status detection technology. When the milling tool is worn or damaged, and it is not discovered in time during machining, it is likely to cause machining interruption. Usually, in order to detect the degree of wear of the milling tool, the milling tool is often removed after shutdown for wear detection to determine whether the tool needs to be replaced, and then the life management of the milling tool is carried out. However, during the machining process, stopping the machine for milling tool life detection will take up the processing time of the workpiece, resulting in an increase in the total production cost.

[0003] The tool wear detection device based on machine vision has the advantages of fast detection speed, high accuracy and high reliability. The existing online detection device usually takes a picture of the milling tool directly during operation, and then uses a computer to perform real-time analysis to detect whether the milling tool is worn. However, after the milling tool completes a round of processing, debris and coolant will be attached to the surface of the milling tool. The attached debris and coolant will affect the photographing effect of the online detection device, making it impossible for the computer to make an accurate judgment. Utility Model Content

[0004] The purpose of the utility model is to provide an online detection device for milling tool wear to solve the problems raised in the above background technology.

[0005] The technical solution of the utility model is: an online detection device for milling tool wear, comprising a base plate, a driving assembly is symmetrically arranged at the bottom of the base plate, a threaded block is threadedly connected to the driving assembly, a hydraulic push rod 1 is fixedly installed on the top of the threaded block, a crossbeam is fixedly connected between the tops of two groups of hydraulic push rods 1, a device plate is fixedly connected to the front end of the crossbeam, a milling assembly is arranged on the top of the device plate, a vertical plate is fixedly connected between the left and right ends of the device plate, a mounting plate 1 and a mounting plate 2 are symmetrically fixedly connected to the front end of the vertical plate from top to bottom, a plurality of groups of cameras are arranged on one side wall of the mounting plate, and a plurality of cameras are arranged on the side wall of the mounting plate 2 Jet assembly, the back of the vertical plate is symmetrically fixedly connected with the mounting plate three, a threaded assembly is arranged between the two groups of the mounting plates three, the threaded assembly is symmetrically threadedly connected with a displacement block, the two groups of the mounting plates three are symmetrically fixedly connected with a limit rod, and the displacement block is slidably arranged on the limit rod, the front end of the displacement block is fixedly connected with a connecting rod, the front end of the connecting rod is fixedly connected with a cross plate, four groups of clamping assemblies are slidably arranged on the cross plate, the backs of the four groups of clamping assemblies are fixedly connected with a connecting plate, the back of the connecting plate is fixedly connected with a pull plate, the back of the cross plate is symmetrically fixedly connected with a column, and the side of the column away from the cross plate is rotatably connected with a baffle.

[0006] Based on the above technical features: before use, place the absorbent sponge between the four groups of clamping components, and make the absorbent sponge close to the cross plate, then the staff pulls the pull plate, the set pull plate drives the connecting plate and the clamping component to slide, the set clamping component firmly fixes the absorbent sponge on the cross plate, then the staff twists the baffle plate so that the baffle plate is located between the pull plate and the connecting plate, and uses the baffle plate to prevent the clamping component from rebounding; when in use, the set hydraulic push rod drives the milling component close to the processing part, and the set milling component processes the processing part. After completing a round of processing, the set milling component is reset. During the resetting process, the set jet component sprays out high-speed airflow, and uses the high-speed airflow to blow off the debris attached to the tool end of the milling component; then the threaded component operates symmetrically The two sets of displacement blocks are arranged to move toward each other along the thread direction of the threaded component, the displacement blocks drive the connecting rod to move, the connecting rod drives the cross plate and the absorbent sponge to move, the two sets of symmetrically arranged absorbent sponges clamp the tool end of the milling component, and absorb the coolant attached to the surface of the tool end of the milling component with the help of the absorbent sponge; then the camera is arranged to take pictures of the tool end of the milling component that has been cleaned, and then the pictures are analyzed in real time with the help of a computer to detect whether the tool end of the milling component is worn. Before performing the detection operation, the device cleans the tool end of the milling component with the help of a jet assembly and a absorbent sponge to reduce the influence of the attached debris and coolant on the camera's photography effect, which improves the detection accuracy of the device to a certain extent.

[0007] Preferably, the driving assembly includes a motor 1 fixedly mounted on the bottom of the base plate, and a threaded rod 1 is fixedly connected to the output end of the motor 1.

[0008] Based on the above technical features: the set motor drives the threaded rod to rotate, the set threaded block moves along the thread direction of the threaded rod, the set threaded block drives the hydraulic push rod to move, and the set hydraulic push rod drives the processing end of the device to move.

[0009] Preferably, the milling assembly comprises a second hydraulic push rod fixedly mounted on the device plate, a telescopic end at the bottom of the second hydraulic push rod is fixedly connected to a milling motor, and a tool is fixedly connected to a bottom output end of the milling motor.

[0010] Based on the above technical features: the set hydraulic push rod 1 drives the set hydraulic push rod 2 to be close to the processing part, the set hydraulic push rod 2 drives the tool to abut against the processing part, the set milling motor drives the tool to rotate, and the set tool performs processing operations on the processing part. After completing a round of processing operations, the set hydraulic push rod 2 drives the tool to reset.

[0011] Preferably, the jet assembly comprises an air pump fixedly mounted on two side walls of the mounting plate, and an output end of the air pump is connected to a jet pipe.

[0012] Based on the above technical features: during the resetting process, the air pump is arranged to eject high-speed airflow through the air jet pipe, and the debris attached to the tool is blown off by the high-speed airflow.

[0013] Preferably, the threaded assembly includes a second motor fixedly mounted on the third side wall of the mounting plate, and a second threaded rod is fixedly connected to the output end of the second motor.

[0014] Based on the above technical features: the second motor drives the second threaded rod to rotate, the two symmetrically arranged displacement blocks move toward each other along the thread direction of the second threaded rod, the displacement blocks drive the connecting rod to move, the connecting rod drives the cross plate and the water-absorbing sponge to move, the two symmetrically arranged groups of water-absorbing sponges clamp the tool end of the milling assembly, and the coolant attached to the surface of the tool end of the milling assembly is absorbed by the water-absorbing sponge, and then the camera is set to take pictures of the tool end of the milling assembly that has been cleaned, and then the pictures are analyzed in real time with the help of a computer to detect whether the tool end of the milling assembly is worn.

[0015] Preferably, the clamping assembly comprises a slide rod slidably arranged on the transverse plate, the end of the slide rod is fixedly connected to the clamping plate, a spring is wound around the slide rod body, and the spring is connected between the clamping plate and the transverse plate.

[0016] Based on the above technical features: before use, place the absorbent sponge between the four groups of clamping plates, and make the absorbent sponge close to the horizontal plate. Then the staff pulls the pull plate, and the set pull plate drives the connecting plate, the sliding rod and the clamping plate to slide. The set clamping plate firmly fixes the absorbent sponge on the horizontal plate. Then the staff twists the baffle so that the baffle is located between the pull plate and the connecting plate, and uses the baffle to prevent the clamping plate from rebounding under the action of the spring force.

[0017] The utility model provides an online detection device for milling tool wear through improvement, which has the following improvements and advantages compared with the prior art:

[0018] First, before using the utility model, the water-absorbing sponge is placed between the four groups of clamping components, and the water-absorbing sponge is close to the horizontal plate. Then the staff pulls the pull plate, and the set pull plate drives the connecting plate and the clamping component to slide. The set clamping component firmly fixes the water-absorbing sponge on the horizontal plate. Then the staff twists the baffle plate so that the baffle plate is located between the pull plate and the connecting plate, and the baffle plate is used to prevent the clamping component from rebounding.

[0019] Second: In the utility model, a high-speed airflow is ejected by a jet component to blow off the debris attached to the tool end of the milling component. Then, the threaded component operates, and two symmetrically arranged groups of displacement blocks move toward each other along the thread direction of the threaded component. The arranged displacement blocks drive the connecting rod to move, and the arranged connecting rod drives the cross plate and the water-absorbing sponge to move. The two symmetrically arranged groups of water-absorbing sponges clamp the tool end of the milling component, and the coolant attached to the surface of the tool end of the milling component is absorbed by the water-absorbing sponge. Before performing the detection operation, this device cleans the tool end of the milling component with the help of the jet component and the water-absorbing sponge, so as to reduce the influence of the attached debris and coolant on the camera's photo-taking effect, which improves the detection accuracy of the device to a certain extent. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The utility model is further explained below in conjunction with the accompanying drawings and embodiments:

[0021] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0022] Figure 2 It is a schematic diagram of the bottom structure of the utility model;

[0023] Figure 3 This utility model Figure 1 Schematic diagram of the local structure;

[0024] Figure 4 This utility model Figure 3 Schematic diagram of the back structure;

[0025] Figure 5 This utility model Figure 3 A-section structure enlarged schematic diagram.

[0026] Description of reference numerals:

[0027] 1. Bottom plate; 2. Drive assembly; 201. Motor 1; 202. Threaded rod 1; 3. Threaded block; 4. Hydraulic push rod 1; 5. Crossbeam; 6. Mounting plate; 7. Milling assembly; 701. Hydraulic push rod 2; 702. Milling motor; 703. Tool; 8. Vertical plate; 9. Mounting plate 1; 10. Mounting plate 2; 11. Camera; 12. Jet assembly; 1201. Air pump; 1202. Jet pipe; 13. Mounting plate 3; 14. Threaded assembly; 1401. Motor 2; 1402. Threaded rod 2; 15. Displacement block; 16. Limit rod; 17. Connecting rod; 18. Cross plate; 19. Clamping assembly; 1901. Sliding rod; 1902. Clamping plate; 1903. Spring; 20. Connecting plate; 21. Pull plate; 22. Column; 23. Baffle. DETAILED DESCRIPTION

[0028] The utility model is described in detail below, and the technical solutions in the embodiments of the utility model are clearly and completely described. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0029] The utility model provides an online detection device for milling tool wear through improvement. The technical solution of the utility model is:

[0030] like Figure 1-Figure 5As shown, an online detection device for milling tool wear comprises a base plate 1, a driving assembly 2 is symmetrically arranged at the bottom of the base plate 1, a threaded block 3 is threadedly connected to the driving assembly 2, a hydraulic push rod 1 4 is fixedly installed on the top of the threaded block 3, a crossbeam 5 is fixedly connected between the tops of two groups of hydraulic push rods 1 4, a device plate 6 is fixedly connected to the front end of the crossbeam 5, a milling assembly 7 is arranged on the top of the device plate 6, a vertical plate 8 is fixedly connected between the left and right ends of the device plate 6, a mounting plate 1 9 and a mounting plate 2 10 are symmetrically fixedly connected to the front end of the vertical plate 8 from top to bottom, a plurality of groups of cameras 11 are arranged on the side wall of the mounting plate 1 9, an injection assembly 12 is arranged on the side wall of the mounting plate 2 10, and the back of the vertical plate 8 is symmetrically fixedly connected to A mounting plate three 13 is connected, a threaded component 14 is arranged between the two groups of mounting plates three 13, a displacement block 15 is symmetrically threadedly connected on the threaded component 14, a limit rod 16 is symmetrically fixedly connected between the two groups of mounting plates three 13, and the displacement block 15 is slidably arranged on the limit rod 16, a connecting rod 17 is fixedly connected to the front end of the displacement block 15, a cross plate 18 is fixedly connected to the front end of the connecting rod 17, four groups of clamping components 19 are slidably arranged on the cross plate 18, a connecting plate 20 is fixedly connected between the backs of the four groups of clamping components 19, a pull plate 21 is fixedly connected to the back of the connecting plate 20, a column 22 is symmetrically fixedly connected to the back of the cross plate 18, and a baffle 23 is rotatably connected to the side of the column 22 away from the cross plate 18.

[0031] Furthermore, the clamping assembly 19 includes a sliding rod 1901 slidably set on the cross plate 18, and the end of the sliding rod 1901 is fixedly connected to a clamping plate 1902. A spring 1903 is wound around the rod body of the sliding rod 1901, and the spring 1903 is connected between the clamping plate 1902 and the cross plate 18. Before use, the absorbent sponge is placed between the four groups of clamping plates 1902, and the absorbent sponge is close to the cross plate 18. Then the staff pulls the pull plate 21, and the set pull plate 21 drives the connecting plate 20, the sliding rod 1901 and the clamping plate 1902 to slide. The set clamping plate 1902 firmly fixes the absorbent sponge on the cross plate 18. Then the staff twists the baffle 23 so that the baffle 23 is located between the pull plate 21 and the connecting plate 20, and uses the baffle 23 to prevent the clamping plate 1902 from rebounding under the action of the elastic force of the spring 1903.

[0032] Furthermore, the driving assembly 2 includes a motor 201 fixedly installed on the bottom of the base plate 1, and the output end of the motor 201 is fixedly connected to a threaded rod 202. When in use, the motor 201 drives the threaded rod 202 to rotate, and the threaded block 3 moves along the thread direction of the threaded rod 202. The threaded block 3 drives the hydraulic push rod 4 to move, and the hydraulic push rod 4 drives the processing end of the device to move.

[0033] Furthermore, the milling assembly 7 includes a hydraulic push rod 2 701 fixedly mounted on the device plate 6, the bottom telescopic end of the hydraulic push rod 2 701 is fixedly connected to a milling motor 702, the bottom output end of the milling motor 702 is fixedly connected to a tool 703, the arranged hydraulic push rod 1 4 drives the hydraulic push rod 2 701 to approach the processing part, the arranged hydraulic push rod 2 701 drives the tool 703 to abut against the processing part, the arranged milling motor 702 drives the tool 703 to rotate, the arranged tool 703 performs processing operations on the processing part, and after completing a round of processing operations, the arranged hydraulic push rod 2 701 drives the tool 703 to reset.

[0034] Furthermore, the jet assembly 12 includes an air pump 1201 fixedly mounted on the side wall of the mounting plate 10, and the output end of the air pump 1201 is connected to a jet pipe 1202. During the resetting process, the set air pump 1201 ejects a high-speed airflow through the jet pipe 1202, and the debris attached to the tool 703 is blown off by the high-speed airflow.

[0035] Furthermore, the threaded component 14 includes a second motor 1401 fixedly mounted on the side wall of the third mounting plate 13, and the output end of the second motor 1401 is fixedly connected to a second threaded rod 1402, and the second motor 1401 drives the second threaded rod 1402 to rotate, and the two symmetrically arranged groups of displacement blocks 15 move toward each other along the thread direction of the second threaded rod 1402, and the arranged displacement blocks 15 drive the connecting rod 17 to move, and the arranged connecting rod 17 drives the cross plate 18 and the water-absorbing sponge to move, and the two symmetrically arranged groups of water-absorbing sponges clamp the tool 703, and absorb the coolant attached to the surface of the tool 703 with the help of the water-absorbing sponge, and then the camera 11 is arranged to take pictures of the tool 703 that has been cleaned, and then the pictures are analyzed in real time with the help of a computer to detect whether the tool 703 is worn, and before performing the detection operation, the device uses the jet assembly 12 and the water-absorbing sponge to clean the tool 703, so as to reduce the influence of the attached debris and coolant on the camera 11 taking pictures, which improves the detection accuracy of the device to a certain extent.

[0036] Working principle: Before use, place the absorbent sponge between the four groups of clamping plates 1902, and make the absorbent sponge close to the horizontal plate 18, then the staff pulls the pull plate 21, the set pull plate 21 drives the connecting plate 20, the slide bar 1901 and the clamping plate 1902 to slide, and the set clamping plate 1902 firmly fixes the absorbent sponge on the horizontal plate 18, then the staff twists the baffle plate 23 so that the baffle plate 23 is located between the pull plate 21 and the connecting plate 20, and uses the baffle plate 23 to prevent the clamping plate 1902 from rebounding under the action of the elastic force of the spring 1903; when in use, the set motor 201 drives the threaded rod 1 202 rotates, the threaded block 3 moves along the thread direction of the threaded rod 1 202, the threaded block 3 drives the hydraulic push rod 1 4 to move, the hydraulic push rod 1 4 drives the processing end of the device to move, the hydraulic push rod 1 4 drives the hydraulic push rod 2 701 to approach the processing part, the hydraulic push rod 2 701 drives the tool 703 to abut against the processing part, the milling motor 702 drives the tool 703 to rotate, and the tool 703 processes the processing part. After completing a round of processing, the hydraulic push rod 2 701 drives the tool 703 to reset;

[0037] During the resetting process, the air pump 1201 is set to spray high-speed airflow through the jet pipe 1202, and the debris attached to the tool 703 is blown off by the high-speed airflow. The two symmetrically set displacement blocks 15 move towards each other along the thread direction of the threaded rod 1402, and the set displacement blocks 15 drive the connecting rod 17 to move, and the set connecting rod 17 drives the cross plate 18 and the absorbent sponge to move. The two symmetrically set groups of absorbent sponges clamp the tool 703, and the coolant attached to the surface of the tool 703 is absorbed by the absorbent sponge. Then the camera 11 is set to take a picture of the cleaned tool 703, and then the picture is analyzed in real time with the help of a computer to detect whether the tool 703 is worn. Before performing the detection operation, this device uses the jet component 12 and the absorbent sponge to clean the tool 703, so as to reduce the influence of the attached debris and coolant on the camera 11. This improves the detection accuracy of the device to a certain extent.

[0038] The above description enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An online detection device for milling tool wear, comprising a base plate (1), characterized in that: The bottom of the base plate (1) is symmetrically provided with a driving assembly (2), a threaded block (3) is threadedly connected to the driving assembly (2), a hydraulic push rod (4) is fixedly installed on the top of the threaded block (3), a crossbeam (5) is fixedly connected between the tops of the two groups of hydraulic push rods (4), a device plate (6) is fixedly connected to the front end of the crossbeam (5), a milling assembly (7) is arranged on the top of the device plate (6), a vertical plate (8) is fixedly connected between the left and right ends of the device plate (6), the front end of the vertical plate (8) is symmetrically fixedly connected to the mounting plate (9) and the mounting plate (10) in sequence from top to bottom, a plurality of groups of cameras (11) are arranged on the side wall of the mounting plate (9), an injection assembly (12) is arranged on the side wall of the mounting plate (10), the back of the vertical plate (8) is symmetrically fixedly connected to the mounting plate (13), and the two groups A threaded assembly (14) is arranged between the three mounting plates (13), and a displacement block (15) is symmetrically threadedly connected on the threaded assembly (14). A limiting rod (16) is symmetrically fixedly connected between the two groups of the three mounting plates (13), and the displacement block (15) is slidably arranged on the limiting rod (16). A connecting rod (17) is fixedly connected to the front end of the displacement block (15), and a transverse plate (18) is fixedly connected to the front end of the connecting rod (17). Four groups of clamping assemblies (19) are slidably arranged on the transverse plate (18). A connecting plate (20) is fixedly connected between the backs of the four groups of clamping assemblies (19), and a pull plate (21) is fixedly connected to the back of the connecting plate (20). A column (22) is symmetrically fixedly connected to the back of the transverse plate (18), and a baffle (23) is rotatably connected to the side of the column (22) away from the transverse plate (18).

2. The on-line detection device for milling tool wear according to claim 1, characterized in that: The driving assembly (2) comprises a motor 1 (201) fixedly mounted on the bottom of the base plate (1), and a threaded rod 1 (202) is fixedly connected to the output end of the motor 1 (201).

3. The on-line detection device for milling tool wear according to claim 1, characterized in that: The milling assembly (7) comprises a second hydraulic push rod (701) fixedly mounted on a device plate (6); a telescopic end at the bottom of the second hydraulic push rod (701) is fixedly connected to a milling motor (702); and a tool (703) is fixedly connected to the output end at the bottom of the milling motor (702).

4. The on-line detection device for milling tool wear according to claim 1, characterized in that: The jet assembly (12) comprises an air pump (1201) fixedly mounted on the side wall of the second mounting plate (10), and the output end of the air pump (1201) is connected to a jet pipe (1202).

5. The on-line detection device for milling tool wear according to claim 1, characterized in that: The threaded assembly (14) comprises a second motor (1401) fixedly mounted on the side wall of the third mounting plate (13), and the output end of the second motor (1401) is fixedly connected to a second threaded rod (1402).

6. The on-line detection device for milling tool wear according to claim 1, characterized in that: The clamping assembly (19) comprises a sliding rod (1901) slidably arranged on the transverse plate (18), the end of the sliding rod (1901) is fixedly connected to a clamping plate (1902), a spring (1903) is wound around the rod body of the sliding rod (1901), and the spring (1903) is connected between the clamping plate (1902) and the transverse plate (18).

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