Gauge block multi-parameter efficient detection device and method based on length gauge

Abstract

The invention relates to a gauge block multi-parameter efficient detection device and method based on a length gauge, and the device comprises the length gauge which is used for detecting the size of a gauge block, and also comprises an automatic gauge block measurement module which is used for installing the length gauge, a robot module which is used for moving and installing the gauge block, and an automatic feeding module which is used for storing the gauge block. The use method based on the gauge block multi-parameter efficient detection device comprises the following steps: S1, installing the standard gauge block and the to-be-measured block in place; s2, self-checking and resetting of the multi-axis mechanical arm; s3, the multi-axis mechanical arm adsorbs the corresponding gauge blocks through a first servo vacuum suction cup, and the multi-axis mechanical arm moves the gauge blocks into a standard gauge block groove and a detection gauge block groove in the U-shaped positioning block; s4, detection is carried out through a length gauge, and after detection is completed, the gauge block is reset to the carrying disc; no manual intervention exists in the process of calibrating the gauge block by using the gauge block multi-parameter automatic detection device based on the length gauge, the measurement error caused by manual fork shifting of the gauge block is reduced, and the measurement precision of the gauge block is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of precision length measuring tools, and more particularly to a device and method for efficiently detecting multiple parameters of a gauge block based on a length meter. Background Art

[0002] Gauge blocks, as physical measuring tools for length standards, are widely used in industrial production and scientific research. Gauge block calibration devices are generally divided into three categories based on the measurement principle: interferometric, inductive, and grating. Interferometric gauge block calibration devices include the Korotkoff interferometer method and the contact interferometer method. The Korotkoff interferometer method, based on the decimal superposition method, can directly achieve static measurement of grade 2 and above gauge blocks. However, the cost is high and the environmental requirements are strict. Corrections for phase difference and air refractive index are required, and it is mostly used for high-grade gauge block testing.

[0003] The contact interferometer, based on the principle of light wave interference, can achieve static measurement of 3 to 5 equal gauge blocks through comparative measurement. However, it still relies on visual reading and manual data processing, making it difficult to improve detection efficiency. The inductive gauge block calibration device uses an inductive micrometer method. The inductive micrometer is based on the principle of inductive induction and can achieve semi-automatic measurement of 3 to 5 equal gauge blocks through comparative measurement. However, the inductive micrometer has a small measurement range and the probe will experience zero point drift after long-term operation, requiring a large number of standard gauge blocks to provide reference points.

[0004] The grating type gauge block calibration device adopts the grating displacement sensor method. Based on the principle of Moire effect, it can also realize semi-automatic measurement of 3 to 5 equal gauge blocks through comparative measurement, but the grating displacement sensor can only realize highly automatic measurement.

[0005] All of the above methods require manual movement of the gauge block to five target positions to measure the center length and length variation of the gauge block. Compared with absolute measurement represented by the Coriolis interferometer method, relative measurement represented by the inductive micrometer method and the grating displacement sensor method has the advantages of shorter measurement time, lower cost, simple principle, and easy maintenance. It has broad application prospects in the calibration process of 3 to 5 gauge blocks. Summary of the Invention

[0006] In view of the problems existing in the prior art, the purpose of the present invention is to provide a device and method for efficient multi-parameter detection of a gauge block based on a length meter, so as to solve the technical problems mentioned in the background technology.

[0007] To solve the above problems, the present invention adopts the following technical solutions.

[0008] A multi-parameter efficient detection device for gauge blocks based on a length meter comprises a length meter for detecting the size of the gauge block, an automatic gauge block measurement module for installing the length meter, a robot module for transferring the gauge block, and an automatic loading module for storing the gauge block, wherein:

[0009] The gauge block automatic measurement module includes a gauge block positioning tool for providing a predetermined position for gauge block measurement, and a measuring base for providing vertical stable operation support. The gauge block positioning tool, the measuring base and the length meter are arranged in coordination;

[0010] The robot module includes a multi-axis robotic arm, a clamping mechanism, a vacuum suction mechanism, a pushing mechanism, and a visual positioning mechanism, wherein the clamping mechanism, the vacuum suction mechanism, the pushing mechanism, and the visual positioning mechanism are installed on the working end of the multi-axis robotic arm;

[0011] The automatic loading module includes a carrier for storing gauge blocks, a vacuum suction mechanism for picking up and placing the carrier, a three-axis material picking mechanism for moving the carrier, a silo for storing the carrier, a material rack for placing the silo, and a transfer platform for transferring gauge blocks.

[0012] As a further preferred embodiment, the gauge block positioning tooling includes a servo cylinder 1 and a U-shaped positioning block, and multiple groups of parallel slide grooves are provided on the measuring base. The servo cylinder 1 is detachably connected to one of the slide grooves, and a shift block is installed on the working end of the servo cylinder 1. The U-shaped positioning block is inserted into the shift block, and the U-shaped positioning block is slidably connected to the slide groove. The U-shaped positioning block is provided with a standard gauge block groove and a detection gauge block groove.

[0013] As a further preferred embodiment, the clamping mechanism includes a servo cylinder 2, a fixed seat, and a clamping block. The fixed seat is installed at the working end of the multi-axis robotic arm. The clamping block is slidably connected to the lower end face of the fixed seat, and the servo cylinder 2 is installed on the fixed seat. The working end of the servo cylinder 2 is installed on the clamping block. The vacuum suction mechanism 1 includes multiple groups of servo vacuum suction cups 1, and the servo vacuum suction cups 1 are installed at the working end of the multi-axis robotic arm. The visual positioning mechanism includes a visual recognition camera and a protective shell, and the protective shell is installed on the outside of the visual recognition camera.

[0014] As a further preferred embodiment, the second vacuum suction mechanism includes a second servo vacuum suction cup and an electric rail. The electric rail is installed on the transplanting platform, and the second servo vacuum suction cup is installed at the working end of the electric rail. The three-axis material picking mechanism includes two groups of X-type electric rails, a Y-axis electric rail, and a Z-axis electric rail. The two groups of X-type electric rails are installed in parallel on the material rack. The end of the Y-axis electric rail is installed at the working end of the X-type electric rail, and the Z-axis electric rail is installed at the working end of the Y-axis electric rail, and a top support is provided on the top of the Z-axis electric rail.

[0015] As a further preferred embodiment, a servo telescopic rod is provided on the material bin, a working end of the servo telescopic rod is connected to the material rack, and a plurality of groups of the loading plates are plugged into the material rack.

[0016] Based on the method of using the above-mentioned multi-parameter high-efficiency detection device of the gauge block:

[0017] S1: The standard gauge block and the block to be measured are installed in place and inserted into the carrier plates on the two bins on the material rack, that is, the standard gauge block and the block to be measured are loaded on the carrier plates on different bins respectively;

[0018] S2: The multi-axis robot arm performs self-check and reset, and adjusts the vertical inclination angle a of the visual recognition camera so that the central axis of the recognition area of ​​the visual recognition camera is aligned with the working part of the servo vacuum suction cup;

[0019] S3: Start the servo telescopic rod to move the material bin to the predetermined height, then start the electric track 1 and servo vacuum suction cup 2. The servo vacuum suction cup 2 absorbs the corresponding carrier and drags the carrier along the electric track 1 to the transplanting platform. Start the three-axis material picking mechanism and move the top support to the bottom of the corresponding gauge block to lift the gauge block. At the same time, the multi-axis robotic arm uses the servo vacuum suction cup 1 to absorb the corresponding gauge block and move the gauge block to the standard gauge block slot and the test gauge block slot on the U-shaped positioning block.

[0020] S4: Start servo cylinder 1, push the U-shaped positioning block and the gauge block to the predetermined position, and use the length meter to detect it. After the detection is completed, reset the gauge block to the carrier.

[0021] As a further preferred embodiment, before S1, a suitable U-shaped positioning block is selected according to the parameters of the gauge block to be detected, and the U-shaped positioning block is installed on the measuring base through the clamping block of the multi-axis robotic arm, and the operating parameters of the servo cylinder one are set according to the parameters of the gauge block. The distance between the operating nodes of the servo cylinder one is the distance that needs to be moved during the gauge block detection process.

[0022] As a further preferred embodiment, in S4, each time the servo cylinder runs to a preset node, the length meter performs detection in sequence.

[0023] Compared with the prior art, the advantages of the present invention are:

[0024] 1. The measurement principle of the multi-parameter automatic detection device for gauge blocks based on length gauges still belongs to the category of grating displacement sensor method. Therefore, it has the advantages of short measurement time, low cost, simple principle, and easy maintenance. It has a wide range of application prospects in the calibration process of 3 to 5 gauge blocks;

[0025] 2. The length gauge has stable performance, wide measuring range and good repeatability. Therefore, it does not require a large number of standard gauge blocks to provide reference points during the measurement process. It only needs to be calibrated once before measurement using standard gauge blocks.

[0026] 3. The multi-parameter automatic detection device for gauge blocks can realize the automatic measurement of the center length and length variation of the gauge block. Its automatic positioning module is based on a cylinder and is used to automatically move the gauge block to multiple target positions, greatly improving the measurement efficiency.

[0027] 4. The process of calibrating gauge blocks using the multi-parameter automatic detection device based on a length meter requires no human intervention, which reduces the measurement error introduced by manual fork-shifting of gauge blocks and improves the measurement accuracy of gauge blocks. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 Schematic diagram of the overall structure of a device and method for efficiently detecting multiple parameters of a gauge block based on a length gauge of the present invention;

[0029] Figure 2 This is a schematic diagram of the connection structure of the gripping mechanism in the robot module;

[0030] Figure 3 This is the diagram of the three-axis material reclaiming mechanism.

[0031] Description of the numbers in the figure:

[0032] 1. Length gauge; 2. Gauge block automatic measurement module; 3. Robot module; 4. Automatic loading module; 201. Gauge block positioning fixture; 202. Measuring base; 301. Multi-axis robotic arm; 302. Gripping mechanism; 303. Vacuum suction mechanism 1; 304. Material pushing mechanism; 305. Visual positioning mechanism; 401. Carrying plate; 402. Vacuum suction mechanism 2; 403. Three-axis material picking mechanism; 404. Material silo; 405. Material rack; 406. Transfer platform; 20101. Servo cylinder 1; 20102. U-shaped positioning block; 201 03. Shift block; 20104. Standard gauge block slot; 20105. Detection gauge block slot; 30201. Servo cylinder 2; 30202. Fixed seat; 30203. Clamping block; 30301. Servo vacuum suction cup 1; 30501. Visual recognition camera; 30502. Protective case; 40201. Servo vacuum suction cup 2; 40202. Electric track 1; 40301. X-type electric track; 40302. Y-axis electric track; 40303. Z-axis electric track; 40304. Lifting support; 407. Servo telescopic rod. DETAILED DESCRIPTION

[0033] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention; it is obvious that the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0034] Example:

[0035] See also Figures 1 to 3 A device and method for efficiently detecting multiple parameters of a gauge block based on a length meter includes a length meter 1 for detecting the size of the gauge block, an automatic gauge block measurement module 2 for installing the length meter 1, a robot module 3 for transferring the gauge block, and an automatic loading module 4 for storing the gauge block, wherein:

[0036] The gauge block automatic measurement module 2 includes a gauge block positioning tool 201 for providing a predetermined position for gauge block measurement, and a measurement base 202 for providing vertical stable operation support. The gauge block positioning tool 201, the measurement base 202 and the length meter 1 are arranged in coordination;

[0037] The robot module 3 includes a multi-axis robot arm 301, a gripping mechanism 302, a vacuum suction mechanism 303, a material pushing mechanism 304, and a visual positioning mechanism 305. The gripping mechanism 302, the vacuum suction mechanism 303, the material pushing mechanism 304, and the visual positioning mechanism 305 are installed on the working end of the multi-axis robot arm 301;

[0038] The automatic loading module 4 includes a carrier 401 for storing gauge blocks, a vacuum suction mechanism 402 for picking up and placing the carrier 401, a three-axis material picking mechanism 403 for moving the carrier 401, a material bin 404 for storing the carrier 401, a material rack 405 for placing the material bin 404, and a transfer platform 406 for transferring gauge blocks.

[0039] In this embodiment, the gauge block positioning tooling 201 includes a servo cylinder 20101 and a U-shaped positioning block 20102. A plurality of parallel slide grooves 20201 are provided on the measuring base 202. The servo cylinder 20101 is detachably connected to one of the slide grooves 20201. A shift block 20103 is installed on the working end of the servo cylinder 20101. The U-shaped positioning block 20102 is plugged into the shift block 20103, and the U-shaped positioning block 20102 is slidably connected to the slide groove 20201. A standard gauge block groove 20104 and a detection gauge block groove 20105 are provided on the U-shaped positioning block 20102.

[0040] In this embodiment, the clamping mechanism 302 includes a servo cylinder 2 30201, a fixed seat 30202, and a clamping block 30203. The fixed seat 30202 is installed at the working end of the multi-axis robotic arm 301. The clamping block 30203 is slidably connected to the lower end surface of the fixed seat 30202, and the servo cylinder 2 30201 is installed on the fixed seat 30202. The working end of the servo cylinder 2 30201 is installed on the clamping block 30203. The vacuum suction mechanism 1 303 includes multiple groups of servo vacuum suction cup 1 30301, and the servo vacuum suction cup 1 30301 is installed at the working end of the multi-axis robotic arm 301. The visual positioning mechanism 305 includes a visual recognition camera 30501 and a protective shell 30502. The protective shell 30502 is installed on the outside of the visual recognition camera 30501.

[0041] In this embodiment, the vacuum suction mechanism 2 402 includes a servo vacuum suction cup 2 40201 and an electric rail 1 40202. The electric rail 1 40202 is installed on the transplanting platform 406. The servo vacuum suction cup 2 40201 is installed on the working end of the electric rail 1 40202. The three-axis material picking mechanism 403 includes two groups of X-shaped electric rails 40301, a Y-axis electric rail 40302, and a Z-axis electric rail 40303. The two groups of X-shaped electric rails 40301 are installed in parallel on the material rack 405. The end of the Y-axis electric rail 40302 is installed on the working end of the X-shaped electric rail 40301. The Z-axis electric rail 40303 is installed on the working end of the Y-axis electric rail 40302, and a top support 40304 is provided on the top of the Z-axis electric rail 40303.

[0042] In this embodiment, a servo telescopic rod 407 is provided on the material rack 405 , a working end of the servo telescopic rod 407 is connected to the material rack 405 , and a plurality of carrier plates 401 are plugged into the material rack 405 .

[0043] Based on the method of using the above-mentioned multi-parameter high-efficiency detection device of the gauge block:

[0044] Before S1, according to the parameters of the gauge block to be tested, select a suitable U-shaped positioning block 20102, install the U-shaped positioning block 20102 on the measuring base 202 through the clamping block 30203 of the multi-axis robot 301, and set the operating parameters of the servo cylinder 20101 according to the parameters of the gauge block. The distance between the operating nodes of the servo cylinder 20101 is the distance that needs to be moved during the gauge block detection process.

[0045] S1: The standard gauge block and the block to be measured are installed in place. The standard gauge block and the block to be measured are respectively inserted into the carrier plates 401 on the two bins 404 on the material rack 405. That is, the standard gauge block and the block to be measured are loaded on the carrier plates 401 on different bins 404;

[0046] S2: The multi-axis robot arm 301 performs a self-check and resets, and adjusts the vertical inclination angle a of the visual recognition camera 30501 so that the central axis of the recognition area of ​​the visual recognition camera 30502 is aligned with the working part of the servo vacuum chuck 1 30301;

[0047] S3: Activate the servo telescopic rod 407 to move the material bin 404 to a predetermined height. Then, activate the electric track 1 40202 and the servo vacuum suction cup 2 40201. The servo vacuum suction cup 2 40201 adsorbs the corresponding carrier 401 and drags the carrier 401 along the electric track 1 40202 to the transplanting platform 406. Activate the three-axis material picking mechanism 403 and move the support 40304 to the bottom of the corresponding gauge block to lift the gauge block. Simultaneously, the multi-axis robotic arm 301 uses the servo vacuum suction cup 1 303001 to adsorb the corresponding gauge block. The multi-axis robotic arm 301 moves the gauge block to the standard gauge block slot 20104 and the detection gauge block slot 20105 on the U-shaped positioning block 20102.

[0048] S4: Start the servo cylinder 20101, push the U-shaped positioning block 20102 together with the gauge block to the predetermined position, and detect it through the length meter 1. Every time the servo cylinder 20101 runs to the preset node, the length meter 1 performs a detection in sequence. After the detection is completed, the gauge block is reset to the carrier 401.

[0049] The above description is merely a preferred embodiment of the present invention; however, the scope of protection of the present invention is not limited thereto. Any person skilled in the art who, within the technical scope disclosed by the present invention, makes equivalent substitutions or modifications based on the technical solutions and improved concepts of the present invention shall be covered by the scope of protection of the present invention.

Claims

1. A multi-parameter efficient detection device for a gauge block based on a length meter, comprising a length meter (1) for detecting the size of the gauge block, characterized in that: It also includes a gauge block automatic measurement module (2) for installing the length meter (1), a robot module (3) for transferring the gauge block, and an automatic loading module (4) for storing the gauge block, wherein: The gauge block automatic measurement module (2) comprises a gauge block positioning tool (201) for providing a predetermined position for gauge block measurement, and a measurement base (202) for providing vertical stable operation support, and the gauge block positioning tool (201), the measurement base (202) and the length meter (1) are arranged in coordination; The robot module (3) comprises a multi-axis robot arm (301), a gripping mechanism (302), a vacuum suction mechanism (303), a material pushing mechanism (304), and a visual positioning mechanism (305), wherein the gripping mechanism (302), the vacuum suction mechanism (303), the material pushing mechanism (304), and the visual positioning mechanism (305) are installed on the working end of the multi-axis robot arm (301); The automatic loading module (4) comprises a carrier (401) for storing gauge blocks, a second vacuum suction mechanism (402) for taking and placing the carrier (401), a three-axis material taking mechanism (403) for moving the carrier (401), a material bin (404) for storing the carrier (401), a material rack (405) for placing the material bin (404), and a transfer platform (406) for transferring gauge blocks.

2. According to claim 1, a multi-parameter efficient detection device for gauge blocks based on a length meter is characterized in that: The gauge block positioning tool (201) comprises a servo cylinder (20101) and a U-shaped positioning block (20102); a plurality of groups of parallel sliding grooves (20201) are provided on the measuring base (20102); the servo cylinder (20101) is detachably connected to one of the groups of sliding grooves (20201); a shift block (20103) is installed on the working end of the servo cylinder (20101); the U-shaped positioning block (20102) is plugged into the shift block (20103), and the U-shaped positioning block (20102) is slidably connected to the sliding groove (20201); and a standard gauge block groove (20104) and a detection gauge block groove (20105) are provided on the U-shaped positioning block (20102).

3. According to claim 2, a multi-parameter efficient detection device for gauge blocks based on a length meter is characterized in that: The clamping mechanism (302) comprises a servo cylinder 2 (30201), a fixed seat (30202), and a clamping block (30203), wherein the fixed seat (30202) is mounted on the working end of the multi-axis robot arm (301), the clamping block (30203) is slidably connected to the lower end surface of the fixed seat (30202), and the servo cylinder 2 (30201) is mounted on the fixed seat (30202), and the working end of the servo cylinder 2 (30201) is mounted on the clamping block (30203), the vacuum suction mechanism 1 (303) comprises a plurality of groups of servo vacuum suction cups 1 (30301), and the servo vacuum suction cups 1 (30301) are mounted on the working end of the multi-axis robot arm (301), and the visual positioning mechanism (305) comprises a visual recognition camera (30501) and a protective shell (30502), and the protective shell (30502) is mounted on the outer side of the visual recognition camera (30501).

4. The multi-parameter efficient detection device for gauge blocks based on a length meter according to claim 3 is characterized in that: The vacuum suction mechanism 2 (402) comprises a servo vacuum suction cup 2 (40201) and an electric track 1 (40202), wherein the electric track 1 (40202) is installed on the transplanting platform (406), and the servo vacuum suction cup 2 (40201) is installed at the working end of the electric track 1 (40202). The three-axis material picking mechanism (403) comprises two groups of X-shaped electric tracks (40301), a Y-axis electric track (40302), and a Z-axis electric track (40303), wherein the two groups of X-shaped electric tracks (40301) are installed in parallel on the material rack (405), the end of the Y-axis electric track (40302) is installed at the working end of the X-shaped electric track (40301), the Z-axis electric track (40303) is installed at the working end of the Y-axis electric track (40302), and a top support (40304) is provided on the top of the Z-axis electric track (40303).

5. The multi-parameter high-efficiency detection device for gauge blocks based on a length meter according to claim 4 is characterized in that: A servo telescopic rod (407) is provided on the material rack (405), a working end of the servo telescopic rod (407) is connected to the material rack (405), and a plurality of groups of the carrier plates (401) are plugged into the material rack (405).

6. The method for using the multi-parameter high-efficiency detection device for gauge blocks based on a length meter according to claim 5 is characterized in that: S1: The standard gauge block and the block to be measured are installed in place, and the standard gauge block and the block to be measured are respectively plugged into the carrier plates (401) on the two material bins (404) on the material rack (405), that is, the standard gauge block and the block to be measured are loaded on the carrier plates (401) on different material bins (404) in different partitions; S2: The multi-axis robot arm (301) performs self-checking and resetting, and adjusts the inclination angle a of the visual recognition camera (30501) in the vertical direction so that the central axis of the recognition area of ​​the visual recognition camera (30502) is aligned with the working part of the servo vacuum suction cup (30301); S3: Start the servo telescopic rod (407) to move the material bin (404) to a predetermined height, then start the electric track 1 (40202) and the servo vacuum suction cup 2 (40201), and use the servo vacuum suction cup 2 (40201) to absorb the corresponding carrier (401), and drag the carrier (401) along the electric track 1 (40202) to the transplanting platform (406), start the three-axis material picking mechanism (403), move the top support (40304) to the bottom of the corresponding gauge block, and lift the gauge block. At the same time, the multi-axis mechanical arm (301) uses the servo vacuum suction cup 1 (303001) to absorb the corresponding gauge block, and the multi-axis mechanical arm (301) moves the gauge block to the standard gauge block slot (20104) and the detection gauge block slot (20105) on the U-shaped positioning block (20102); S4: Start the servo cylinder 1 (20101), push the U-shaped positioning block (20102) together with the gauge block to the predetermined position, and perform detection by the length meter (1). After the detection is completed, reset the gauge block to the carrier (401).

7. The method for using the multi-parameter high-efficiency detection device for gauge blocks based on a length meter according to claim 6 is characterized in that: Prior to S1, a suitable U-shaped positioning block (20102) is selected according to the parameters of the gauge block to be detected, the U-shaped positioning block (20102) is mounted on the measuring base (202) by means of the clamping block (30203) of the multi-axis mechanical arm (301), and the operating parameters of the servo cylinder 1 (20101) are set according to the parameters of the gauge block, and the distance between the operating nodes of the servo cylinder 1 (20101) is the distance that needs to be moved during the gauge block detection process.

8. The method for using the multi-parameter high-efficiency detection device for gauge blocks based on a length meter according to claim 7 is characterized in that: In S4, each time the servo cylinder 1 (20101) runs to a preset node, the length meter (1) performs detection in sequence.

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