A multi-station high-precision portable device for measuring the thickness of the infiltrated layer

Abstract

The present invention relates to the technical field of nitriding layer thickness detection equipment, specifically a multi-station high-precision portable nitriding layer thickness measuring device, comprising a base and an L-shaped mounting frame, wherein the upper surface of the base is fixedly mounted with the L-shaped mounting frame, the four top corners of the lower surface of the base are fixedly mounted with telescopic rods, the bottom of the telescopic rods are fixedly mounted with electromagnet blocks, the outer surface of the telescopic rods is sleeved with a spring A, and the two ends of the spring A are respectively fixedly connected to the upper surface of the electromagnet block and the lower surface of the base, a lifting assembly is provided at the end of the L-shaped mounting frame, a lifting block is provided below the lifting assembly, and a translation assembly is provided on the front side surface of the lifting block. The present invention can directly measure the thickness of the nitriding layer on the surface of the workpiece in actual production, avoiding the steps of cutting and sample preparation, effectively saving time, improving production efficiency, reducing the scrapping of workpieces while ensuring the accuracy of the test results.

Description

Technical Field

[0001] The present invention relates to the technical field of nitriding layer thickness detection equipment, in particular to a multi-station high-precision portable nitriding layer thickness measuring device. Background Art

[0002] Carburizing is a common method for strengthening the surface of steel. Existing technologies include, but are not limited to, heat treatment processes such as carburizing, nitriding, carbonitriding, and boronizing. These processes involve diffusing atoms into the workpiece surface, thereby altering its chemical composition and structure, resulting in superior surface properties. The resulting workpiece exhibits excellent wear resistance, corrosion resistance, and hardness, extending its lifespan and reducing losses due to wear and tear. It is a typical energy-saving and emission-reduction technology. Different workpieces require different carbide layer thicknesses. If the carbide layer is too thin, the surface performance will be reduced, the protective effect of the workpiece surface will be reduced, and failures such as surface corrosion or wear will occur. If the carbide layer is too thick, the mechanical properties of the workpiece core will be reduced, and fracture will occur during use due to insufficient toughness. Therefore, it is necessary to test the carbide layer after the workpiece is processed. The hardness method and metallographic method for measuring the carbide layer depth are introduced in GB / T11354-2005 "Method for Determination of Carbide Layer Depth of Steel Parts". However, the national standard method can only be used in the laboratory, and the customer is required to provide a small sample block for furnace testing, and cutting and sample preparation are required. The operation process is complicated and has great limitations. In view of this, we propose a multi-station high-precision portable carbide layer thickness measurement device. Summary of the Invention

[0003] The purpose of the present invention is to provide a multi-station high-precision portable device for measuring the thickness of the diffusion layer, so as to solve the problem that the hardness method and metallographic method proposed in the above background technology can only be used in the laboratory to measure the depth of the diffusion layer, and the customer needs to provide small sample blocks for furnace testing, and cutting and sample preparation steps are required, and the operation process is complicated.

[0004] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a multi-station high-precision portable permeation layer thickness measuring device, comprising a base and an L-shaped mounting frame, wherein the L-shaped mounting frame is fixedly mounted on the upper surface of the base, telescopic rods are fixedly mounted at the four top corners of the lower surface of the base, and electromagnet blocks are fixedly mounted at the bottom of the telescopic rods, a spring A is sleeved on the outer surface of the telescopic rod, and the two ends of the spring A are respectively fixedly connected to the upper surface of the electromagnet block and the lower surface of the base, a lifting assembly is provided at the end of the L-shaped mounting frame, a lifting block is provided below the lifting assembly, a translation assembly is provided on the front surface of the lifting block, a fixed station A and a fixed station B are respectively provided on one side of the translation assembly, an adjustment assembly is also provided at the center of the lower surface of the base, and a brake assembly is provided on one side surface of the base.

[0005] Preferably, the lifting assembly includes a mounting slot A opened at the end of the L-shaped mounting frame, and the end side surface of the L-shaped mounting frame is located on one side of the mounting slot A and is screwed with a fixed screw column, and the side surface of the L-shaped mounting frame is located below the mounting slot A and is fixed with a mounting block, and a micrometer is clamped inside the mounting slot A, and the lower end of the micrometer slides through the mounting block and is fixedly connected to the upper end surface of the lifting block, and a spring B is sleeved on the outer surface of the lower end of the micrometer, and the two ends of the spring B are fixedly connected to the lower surface of the mounting block and the upper end surface of the lifting block respectively.

[0006] Preferably, a connecting plate is fixed to the side surface of the lifting block away from the L-shaped mounting frame, and two groups of limit blocks are symmetrically fixed to the surface of the lifting block on the same side as the L-shaped mounting frame on both sides of the L-shaped mounting frame, and both groups of limit blocks are slidingly matched with the corresponding limit blocks of the L-shaped mounting frame.

[0007] Preferably, the translation assembly includes a translation track fixed to the surface of the connecting plate, and the upper and lower surfaces of the translation track are symmetrically provided with limiting arc grooves, the front side surface of the translation track is slidably installed with a fixed seat, and the surface of the fixed seat is provided with a limiting slide groove, and a limiting bolt is engaged and screwed at the center of the front side surface of the translation track, and the limiting bolt is slidingly connected to the inside of the limiting slide groove, and the surface of the fixed seat close to the translation track and located on the upper and lower sides of the translation track are symmetrically rotatably installed with guide wheels, and the guide wheels and the limiting arc grooves are correspondingly limited.

[0008] Preferably, a mounting end block is fixed to the surface of the translation rail, and the fixed station A includes a clamping block movably mounted on one side of the mounting end block, and arc-shaped clamping openings are provided on the corresponding surfaces of the clamping block and the mounting end block, and a grinding wheel is mounted inside the two groups of arc-shaped clamping openings, and two fastening bolts are engaged and screwed inside the clamping block and the mounting end block, and the clamping block can be fixed to the front end of the mounting end block by the fastening bolts.

[0009] Preferably, the fixed station B includes a mounting slot B opened on the end surface of one side of the mounting end block, an ultrasonic hardness tester is clamped and placed inside the mounting slot B, and the end of the mounting end block is symmetrically provided with side slots on both sides of the mounting slot B, a rotating shaft is rotatably installed inside the side slot on the rear side, a connecting rod is fixed on the outer surface of the rotating shaft, and the end of the connecting rod can be clamped into the inside of the front side slot, and the end of the connecting rod is located outside the side slot and is engaged and screwed with a plum blossom fixing head.

[0010] Preferably, the adjustment assembly includes a U-shaped rotating seat fixed to the lower surface of the base, and rotating rods are installed on both side walls of the U-shaped rotating seat for transverse rotation, and one end of the rotating rod extends to the outside of the side wall of the U-shaped rotating seat, and a cam is fixedly installed on the outer surface of the rotating rod between the side walls of the U-shaped rotating seat, and a rotating disk is fixedly installed on the end of the rotating rod, and a twist handle is fixedly installed on the outer edge surface of the rotating disk, a fixed platform is fixed on one side surface of the base, and the rotating rod is rotatably connected to the end of the fixed platform.

[0011] Preferably, the brake assembly includes a mounting side block fixed to the surface of the fixed platform, a guide rod is inserted and slidably inserted inside the mounting side block, a holding plate is fixed to the lower end of the guide rod, a damping pad is fixedly installed on the lower surface of the holding plate, a damping sleeve is fixedly installed on the outer surface of the rotating rod below the holding plate, and the damping pad and the damping sleeve are squeezed and frictionally fitted, a spring C is sleeved on the outer surface of the guide rod, and the two ends of the spring C are fixedly connected to the end of the guide rod and the upper surface of the mounting side block respectively.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] 1. The multi-station combination design of the micrometer, grinding wheel and ultrasonic hardness tester in this device effectively replaces the traditional national standard method for measuring the thickness of the nitriding layer of the workpiece. When the test data of the ultrasonic hardness tester in this device meets the experimental requirements, the reading of the micrometer is the thickness of the nitriding layer. Through multiple tests, the test results are recorded multiple times, which improves the persuasiveness of the measurement results. At the same time, this device can directly measure the thickness of the nitriding layer on the surface of the workpiece in actual production, avoiding the steps of cutting and sample preparation, effectively saving time, improving production efficiency, reducing the scrap of workpieces and ensuring the accuracy of the test results.

[0014] 2. When the lifting block is lifting, the limit block cooperates with the L-shaped mounting bracket to realize the limited sliding function. At the same time, spring B can provide reverse elastic force, making the lifting process of the lifting block more stable. At the same time, the limit bolt can lock the mounting end block, thereby effectively avoiding displacement during the detection process, thereby improving the accuracy of the measurement results of the device;

[0015] 3. In this device, when the grinding wheel is working, its end will rub against the surface to be tested, thereby generating a certain vibration, and the vibration will be transmitted to the bottom of the base. At this time, the telescopic rod and spring A cooperate to generate a certain elastic force, thereby effectively buffering the vibration generated by the grinding wheel when working, thereby improving the stability of the device during measurement. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional schematic diagram of the overall structure of the present invention;

[0017] Figure 2 This is a schematic diagram of the lifting assembly structure of the present invention;

[0018] Figure 3 This is a schematic diagram of the installation of the fixing seat structure of the present invention;

[0019] Figure 4 This is a schematic diagram of the installation of the guide wheel structure of the present invention;

[0020] Figure 5 This is a schematic diagram of the partial structure of the surface of the mounting end block of the present invention;

[0021] Figure 6 This is a schematic diagram of the structure of the regulating component of the present invention;

[0022] Figure 7 It is a schematic structural diagram of the brake assembly of the present invention.

[0023] Explanation of the numbers in the figure: 1. Base; 101. L-shaped mounting bracket; 102. Telescopic rod; 103. Electromagnet block; 104. Spring A; 2. Mounting notch A; 201. Fixing screw post; 202. Mounting block; 203. Micrometer; 204. Spring B; 3. Lifting block; 301. Connecting plate; 302. Limiting block; 4. Translation track; 401. Limiting arc groove; 402. Fixing seat; 403. Limiting slideway; 404. Limiting bolt; 405. Guide wheel; 5. Mounting end block; 501. Clamping block 502. Arc-shaped clamping mouth; 503. Fastening bolt; 504. Grinding wheel; 505. Mounting slot B; 506. Side slot; 507. Rotating shaft; 508. Connecting rod; 509. Plum blossom fixing head; 510. Ultrasonic hardness tester; 6. U-shaped rotating seat; 601. Rotating rod; 602. Cam; 603. Rotating disk; 604. Twist handle; 605. Fixed table; 7. Mounting side block; 701. Guide rod; 702. Holding plate; 703. Damping pad; 704. Damping sleeve; 705. Spring C. DETAILED DESCRIPTION

[0024] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0025] See also Figure 1-7 , the present invention provides an embodiment:

[0026] A multi-station high-precision portable permeation layer thickness measuring device includes a base 1 and an L-shaped mounting frame 101. The L-shaped mounting frame 101 is fixedly installed on the upper surface of the base 1, and telescopic rods 102 are fixedly installed at the four top corners of the lower surface of the base 1. Electromagnetic blocks 103 are fixedly installed at the bottom of the telescopic rods 102. A spring A104 is sleeved on the outer surface of the telescopic rod 102, and the two ends of the spring A104 are respectively fixedly connected to the upper surface of the electromagnet block 103 and the lower surface of the base 1. A lifting assembly is provided at the end of the L-shaped mounting frame 101, and a lifting block 3 is provided below the lifting assembly. A translation assembly is provided on the front side surface of the lifting block 3, and a fixed station A and a fixed station B are respectively provided on one side of the translation assembly. An adjustment assembly is also provided at the center of the lower surface of the base 1, and a brake assembly is provided on one side surface of the base 1.

[0027] Furthermore, the lifting assembly includes a mounting slot A2 opened at the end of the L-shaped mounting frame 101, and a fixed screw column 201 is screwed on the side surface of the end of the L-shaped mounting frame 101 on one side of the mounting slot A2. A mounting block 202 is fixed on the side surface of the L-shaped mounting frame 101 below the mounting slot A2. A micrometer 203 is clamped inside the mounting slot A2, and the lower end of the micrometer 203 slides through the mounting block 202 and is fixedly connected to the upper end surface of the lifting block 3. A spring B204 is sleeved on the outer surface of the lower end of the micrometer 203, and the two ends of the spring B204 are fixedly connected to the lower surface of the mounting block 202 and the upper end surface of the lifting block 3. When the end of the micrometer 203 is screwed, the telescopic end of the micrometer 203 will push the lifting block 3 downward as a whole, thereby driving the grinding wheel 504 to move downward, and the driving end of the grinding wheel 504 will rub the surface of the workpiece.

[0028] Furthermore, a connecting plate 301 is fixed to the side surface of the lifting block 3 away from the L-shaped mounting frame 101, and two groups of limit blocks 302 are symmetrically fixed on the surface of the lifting block 3 on the same side as the L-shaped mounting frame 101, and both groups of limit blocks 302 are matched with the corresponding limit sliding of the L-shaped mounting frame 101. When the lifting block 3 is lifted or lowered, the limit blocks 302 cooperate with the L-shaped mounting frame 101 to realize the limit sliding function, and at the same time, the spring B204 can provide reverse elastic force, so that the lifting process of the lifting block 3 is more stable.

[0029] Furthermore, the translation assembly includes a translation track 4 fixed to the surface of the connecting plate 301, and the upper and lower surfaces of the translation track 4 are symmetrically provided with limiting arc grooves 401, and the front side surface of the translation track 4 is slidably installed with a fixed seat 402, and the surface of the fixed seat 402 is provided with a limiting slide groove 403. A limiting bolt 404 is engaged and screwed at the center of the front side surface of the translation track 4, and the limiting bolt 404 is slidingly connected to the inside of the limiting slide groove 403. The surface of the fixed seat 402 close to the translation track 4 and is symmetrically rotatably installed on the upper and lower sides of the translation track 4. The guide wheel 405 and the limiting arc groove 401 are both corresponding to the limiting cooperation. Loosen the limiting bolt 404, push the fixed seat 402 to move the detection end of the ultrasonic hardness tester 510 to the position directly above the pit, and then tighten the limiting bolt 404 to fix the translation track 4 as a whole.

[0030] Furthermore, a mounting end block 5 is fixed to the surface of the translation track 4, and the fixed station A includes a clamping block 501 movably mounted on one side of the mounting end block 5, and arc-shaped clamping openings 502 are provided on the corresponding surfaces of the clamping block 501 and the mounting end block 5, and a grinding wheel 504 is clamped and installed inside the two groups of arc-shaped clamping openings 502, and two fastening bolts 503 are engaged and screwed inside the clamping block 501 and the mounting end block 5, and the clamping block 501 can be fixed to the front end of the mounting end block 5 by the fastening bolts 503, and the grinding wheel 504 is clamped and fixed inside the two groups of arc-shaped clamping openings 502, and then the fastening bolts 503 are tightened, so that the clamping block 501 clamps and fixes the grinding wheel 504 well and is in the working position.

[0031] Furthermore, the fixed workstation B includes a mounting slot B505 opened on the end surface of one side of the mounting end block 5, and an ultrasonic hardness detector 510 is clamped and placed inside the mounting slot B505. The end of the mounting end block 5 is symmetrically provided with side slots 506 on both sides of the mounting slot B505. A rotating shaft 507 is rotatably installed inside the rear side slot 506. A connecting rod 508 is fixed on the outer surface of the rotating shaft 507, and the end of the connecting rod 508 can be clamped into the inside of the front side slot 506. The end of the connecting rod 508 is located outside the side slot 506 and is engaged and screwed with a plum blossom fixing head 509. By clamping the end of the connecting rod 508 into the inside of the outer side slot 506 and then twisting the plum blossom fixing head 509, the side wall of the mounting slot B505 can exert a certain clamping force on the ultrasonic hardness detector 510, thereby fixing the ultrasonic hardness detector 510 in the working position.

[0032] Furthermore, the adjustment component includes a U-shaped rotating seat 6 fixed to the lower surface of the base 1, and the two side walls of the U-shaped rotating seat 6 are laterally rotatably installed with rotating rods 601, and one end of the rotating rod 601 extends to the outside of the side wall of the U-shaped rotating seat 6, and the outer surface of the rotating rod 601 is located between the side walls of the U-shaped rotating seat 6 and a cam 602 is fixedly installed, and the end of the rotating rod 601 is fixedly installed with a rotating disk 603, and the outer edge surface of the rotating disk 603 is fixedly installed with a twist handle 604. A fixed platform 605 is fixed to the one side surface of the base 1, and the rotating rod 601 is rotatably connected to the end of the fixed platform 605. By pulling the twist handle 604, under the action of the fixed connection between the rotating disk 603 and the rotating rod 601, the cam 602 is driven to rotate a certain angle inside the U-shaped rotating seat 6, and the height of the entire device can be adjusted by squeezing the edge surface of the cam 602 and the surface of the workpiece to be detected, thereby facilitating detection.

[0033] Furthermore, the brake assembly includes a mounting side block 7 fixed to the surface of the fixed platform 605, a guide rod 701 is inserted into the mounting side block 7 for sliding through, a holding plate 702 is fixed to the lower end of the guide rod 701, a damping pad 703 is fixed to the lower surface of the holding plate 702, a damping sleeve 704 is fixedly installed on the outer surface of the rotating rod 601 below the holding plate 702, and the damping pad 703 and the damping sleeve 704 are squeezed and frictionally matched, a spring C705 is sleeved on the outer surface of the guide rod 701, and the two end portions of the spring C705 are fixed to the outer surface of the rotating rod 601. The guide rod 701 is fixedly connected to the end of the guide rod 701 and the upper surface of the mounting side block 7. Pull the guide rod 701 upward, and the guide rod 701 will overcome the elastic force of the spring C705 and move upward, thereby driving the damping pad 703 to separate from the damping sleeve 704, which facilitates the rotation of the twist handle 604. Loosen the guide rod 701, and drive the guide rod 701 downward under the elastic force of the spring C705, thereby driving the damping pad 703 to move downward and squeeze and rub against the damping sleeve 704. At this time, the rotating rod 601 is well clamped, effectively preventing the rotating rod 601 from rotating at will.

[0034] Working principle: In this device, the grinding wheel 504 is engaged with the inside of the two sets of arc-shaped clamping openings 502, and then the fastening bolts 503 are tightened, so that the clamping block 501 can clamp and fix the grinding wheel 504 well and put it in the working position. By inserting the end of the connecting rod 508 into the inside of the outer side groove 506, and then twisting the plum blossom fixing head 509, the side wall of the installation slot B505 can exert a certain clamping force on the ultrasonic hardness tester 510, and then the ultrasonic hardness tester 510 can be fixed in the working position. When performing the thickness detection of the nitriding layer on the surface of the workpiece, first place the entire device on the side of the area to be tested. At this time, the bottoms of the four sets of electromagnet blocks 103 are all placed in contact with the surface of the workpiece to be tested, and then the electromagnet block 103 is energized. Through the electromagnet block 103 and the workpiece to be tested, the ultrasonic hardness tester 510 is tested. By detecting the magnetic attraction of the workpiece, the entire device can be fixed on the surface of the workpiece, and the guide rod 701 is pulled upward. The guide rod 701 will overcome the elastic force of the spring C705 and move upward, thereby driving the damping pad 703 to separate from the damping sleeve 704. Then, by pulling the twist handle 604, under the fixed connection between the rotating disk 603 and the rotating rod 601, the cam 602 is driven to rotate a certain angle inside the U-shaped rotating seat 6. The edge surface of the cam 602 is squeezed with the surface of the workpiece to be detected, so that the height of the entire device can be adjusted, thereby facilitating detection. Then, the guide rod 701 is loosened, and the guide rod 701 is driven downward under the elastic force of the spring C705, thereby driving the damping pad 703 to move downward and squeeze and rub against the damping sleeve 704. At this time, the rotating rod 601 is well held, effectively avoiding rotation. When the rod 601 rotates freely, when the device as a whole rises, the telescopic rod 102 will extend, and the spring A104 will be stretched and extended. At this time, the equipment of each station of the device as a whole will be adjusted to the appropriate working position, and the grinding wheel 504 starts working. Then, the end of the micrometer 203 is screwed. The telescopic end of the micrometer 203 will push the lifting block 3 to move down as a whole, thereby driving the grinding wheel 504 to move down. The driving end of the grinding wheel 504 will rub the surface of the workpiece. As the end of the micrometer 203 continues to be screwed, the surface of the workpiece will be ground and pits will appear. At this time, the reading of the micrometer 203 during the first grinding is recorded. The reading is the depth of the pit. Then, the end of the micrometer 203 is screwed in the opposite direction, so that the lifting block 3 drives the grinding wheel 504 to move up, make room, and then the limit screw The bolt 404 is loosened, and the fixing seat 402 is pushed to move the detection end of the ultrasonic hardness detector 510 to the position just above the pit, and then the limit bolt 404 is tightened to fix the translation track 4 as a whole. At this time, the ultrasonic hardness detector 510 works, and the detected data is the hardness of the base layer at the bottom of the pit, and is recorded. Then the electromagnet block 103 is powered off, and the device is moved as a whole to the next measurement area. Continue through the above operation to measure and record the second set of data. After completion, a third test is performed until the test data of the ultrasonic hardness detector 510 meets the experimental requirements. At this time, the reading of the micrometer 203 is the thickness of the nitriding layer. Through multiple tests, the test results are recorded multiple times, which improves the persuasiveness of the measurement results. In the above process,When the lifting block 3 is raised or lowered, the limit block 302 cooperates with the L-shaped mounting bracket 101 to realize the limited sliding function. At the same time, the spring B204 can provide a reverse elastic force, making the lifting process of the lifting block 3 more stable. At the same time, the limit bolt 404 can lock the mounting end block 5, thereby effectively preventing displacement during the detection process, thereby improving the accuracy of the measurement results of the device. At the same time, since the end of the grinding wheel 504 will rub against the surface to be detected when it is working, a certain amount of vibration will be generated, and this vibration will be transmitted to the bottom of the base 1. At this time, a certain amount of elastic force is generated by the cooperation of the telescopic rod 102 and the spring A104, thereby effectively buffering the vibration generated by the grinding wheel 504 when it is working, thereby improving the stability of the device during measurement.

[0035] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the invention can be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be included therein. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

Claims

1. A multi-station high-precision portable device for measuring the thickness of a permeation layer, comprising a base (1) and an L-shaped mounting frame (101), characterized in that: An L-shaped mounting frame (101) is fixedly mounted on the upper surface of the base (1), telescopic rods (102) are fixedly mounted at the four top corners of the lower surface of the base (1), and an electromagnet block (103) is fixedly mounted at the bottom of the telescopic rod (102). A spring A (104) is sleeved on the outer surface of the telescopic rod (102), and the two ends of the spring A (104) are respectively fixedly connected to the upper surface of the electromagnet block (103) and the lower surface of the base (1). A lifting assembly is provided at the end of the L-shaped mounting frame (101), a lifting block (3) is provided below the lifting assembly, a translation assembly is provided on the front side surface of the lifting block (3), and a fixed station A and a fixed station B are provided on one side of the translation assembly. An adjustment assembly is also provided at the center of the lower surface of the base (1), and a brake assembly is provided on one side surface of the base (1); The lifting assembly includes a mounting slot A (2) opened at the end of an L-shaped mounting frame (101), a fixed screw column (201) is screwed on the side surface of the end of the L-shaped mounting frame (101) located on one side of the mounting slot A (2), a mounting block (202) is fixed on the side surface of the L-shaped mounting frame (101) located below the mounting slot A (2), a micrometer (203) is clamped inside the mounting slot A (2), and the lower end of the micrometer (203) slides through the mounting block (202) and is fixedly connected to the upper end surface of the lifting block (3), a spring B (204) is sleeved on the outer surface of the lower end of the micrometer (203), and the two ends of the spring B (204) are fixedly connected to the lower surface of the mounting block (202) and the upper end surface of the lifting block (3) respectively; The translation assembly includes a translation track (4) fixed to the surface of the connecting plate (301), the upper and lower surfaces of the translation track (4) are symmetrically provided with limited arc grooves (401), the front side surface of the translation track (4) is slidably provided with a fixing seat (402), the surface of the fixing seat (402) is provided with a limited sliding groove (403), the center of the front side surface of the translation track (4) is engaged and screwed with a limiting bolt (404), and the limiting bolt (404) is limitedly slidably connected to the inside of the limiting sliding groove (403), the surface of the fixing seat (402) close to the translation track (4) and located on the upper and lower sides of the translation track (4) is symmetrically provided with a guide wheel (405), and the guide wheel (405) and the limited arc groove (401) are both correspondingly limited; The surface of the translation track (4) is fixed with a mounting end block (5), and the fixed station A includes a clamping block (501) movably mounted on one side of the mounting end block (5), and arc-shaped clamping openings (502) are provided on the corresponding surfaces of the clamping block (501) and the mounting end block (5), and a grinding wheel (504) is mounted inside the two groups of the arc-shaped clamping openings (502), and two fastening bolts (503) are screwed in the inside of the clamping block (501) and the mounting end block (5), and the clamping block (501) can be fixed to the front end of the mounting end block (5) by the fastening bolts (503); The fixed station B comprises a mounting notch B (505) provided on the end surface of one side of the mounting end block (5), an ultrasonic hardness tester (510) is clamped and placed inside the mounting notch B (505), and the end of the mounting end block (5) is symmetrically provided with side grooves (506) on both sides of the mounting notch B (505), a rotating shaft (507) is rotatably installed inside the rear side groove (506), a connecting rod (508) is fixed on the outer surface of the rotating shaft (507), and the end of the connecting rod (508) can be clamped inside the front side groove (506), and the end of the connecting rod (508) is located outside the side groove (506) and is screwed with a plum blossom fixing head (509) for engagement.

2. A multi-station high-precision portable device for measuring the thickness of a porous layer according to claim 1, characterized in that: A connecting plate (301) is fixed to the side surface of the lifting block (3) away from the L-shaped mounting frame (101), and two groups of limit blocks (302) are symmetrically fixed to the surface of the lifting block (3) on the same side as the L-shaped mounting frame (101) on both sides of the L-shaped mounting frame (101), and both groups of limit blocks (302) are in corresponding limited sliding cooperation with the L-shaped mounting frame (101).

3. The multi-station high-precision portable device for measuring the thickness of the infiltrated layer according to claim 1, characterized in that: The adjustment assembly comprises a U-shaped rotating seat (6) fixed to the lower surface of the base (1), a rotating rod (601) is installed on both side walls of the U-shaped rotating seat (6) for transverse rotation, and one end of the rotating rod (601) extends to the outside of the side wall of the U-shaped rotating seat (6), a cam (602) is fixedly installed on the outer surface of the rotating rod (601) between the side walls of the U-shaped rotating seat (6), a rotating disk (603) is fixedly installed on the end of the rotating rod (601), and a twist handle (604) is fixedly installed on the outer edge surface of the rotating disk (603), a fixed platform (605) is fixed on one side surface of the base (1), and the rotating rod (601) is rotatably connected to the end of the fixed platform (605).

4. The multi-station high-precision portable device for measuring the thickness of the infiltrated layer according to claim 3, characterized in that: The brake assembly comprises a mounting side block (7) fixed to the surface of a fixed platform (605), a guide rod (701) is inserted and slidably inserted inside the mounting side block (7), a holding plate (702) is fixed to the lower end of the guide rod (701), a damping pad (703) is fixedly installed on the lower surface of the holding plate (702), a damping sleeve (704) is fixedly installed on the outer surface of the rotating rod (601) below the holding plate (702), and the damping pad (703) and the damping sleeve (704) are squeezed and frictionally matched, a spring C (705) is sleeved on the outer surface of the guide rod (701), and the two ends of the spring C (705) are fixedly connected to the end of the guide rod (701) and the upper surface of the mounting side block (7), respectively.

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