Ceramic corundum abrasive surface abrasiveness testing device

Abstract

The invention relates to the field of abrasion testing, in particular to a ceramic corundum abrasive surface abrasiveness testing device which comprises a testing table, a settling tank is arranged at the upper end of the testing table, erecting blocks are arranged at the four corners of the bottom of the settling tank, a ceramic corundum abrasive with the upward surface is arranged at the upper ends of the erecting blocks, and side sliding grooves are formed in the two sides of the testing table. An electric sliding rail is arranged in the top end of the movable sleeve frame, a sliding block is adaptively and slidably mounted on the electric sliding rail, an upper sleeve is fixedly arranged in the center of the sliding block, a lower sleeve is fixedly connected to the bottom of the upper sleeve, an adjusting assembly is arranged in the upper sleeve, and a grinding assembly is arranged in the lower sleeve; a testing mechanism is rotationally mounted on the outer side of the lower sleeve. The grinding thickness of the surface of the ceramic corundum grinding tool is analyzed and fed back by comparing the distance change of the induction blocks before and after grinding, so that the abrasion performance of the ceramic corundum grinding tool can be reflected, and the detection accuracy is effectively improved.

Description

Technical Field

[0001] The invention relates to the technical field of wear testing, in particular to a device for testing the surface wear of a ceramic corundum abrasive. Background Art

[0002] Ceramic corundum abrasive is a new type of corundum abrasive, which is produced by sol-gel sintering method. Ceramic corundum abrasive is a polycrystalline structure. The grains prepared by sol-gel method are 100-500 nanometers. The fine grain size during grinding, the broken units are also small. In this way, the abrasive continuously peels off fine grains during grinding, which can continuously provide new grinding edges; this micro-crushing effect is a good combination of sharpness and durability.

[0003] At present, the surface of abrasive tools made of ceramic corundum abrasives needs to undergo wear tests, the main purpose of which is to evaluate the wear resistance of abrasive tools under specific conditions, understand their service life, and provide a basis for the selection, design and improvement of abrasive tools. However, the existing wear test equipment has a relatively simple detection function and few test parameters, and cannot fully reflect the wear resistance of corundum abrasive tools. Summary of the invention

[0004] The purpose of the present invention is to provide a device for testing the surface wear of a ceramic corundum abrasive, aiming to solve the above technical problems.

[0005] The purpose of the present invention can be achieved through the following technical solutions: A device for testing the surface wear of a ceramic corundum abrasive comprises a test bench, wherein the upper end of the test bench is provided with a sedimentation tank, the four corners of the bottom of the sedimentation tank are provided with mounting blocks, the upper end of the mounting block is provided with a ceramic corundum grinding tool with a surface facing upward, side slide grooves are provided on both sides of the test bench, a movable sleeve is slidably installed in the side slide grooves, and a clamping mechanism is distributed at the four corners of the upper end of the test bench, a displacement motor and a suction pump are fixedly arranged at the bottom of the test bench, a displacement screw is connected to the output end of the displacement motor, the displacement screw thread passes through the bottom of the movable sleeve, the suction pump is connected to one end of a discharge pipe, and the other end of the discharge pipe is connected to the sedimentation tank, an electric slide rail is provided in the top of the movable sleeve, a sliding block is adapted to be slidably installed on the electric slide rail, an upper sleeve is fixedly provided in the center of the sliding block, a lower sleeve is fixedly connected to the bottom of the upper sleeve, an adjusting component is provided in the upper sleeve, a grinding component is provided in the lower sleeve, and a testing mechanism is rotatably installed on the outer side of the lower sleeve.

[0006] The testing mechanism includes a testing bracket, a stabilizing frame is extended from the bottom of the lower sleeve, the upper and lower ends of the testing bracket are respectively rotatably cooperated with the upper sleeve and the stabilizing frame, a sliding cylinder is fixedly provided on the outside of the testing bracket, a sliding rod is axially slidably installed inside the sliding cylinder, a return spring is provided between the top of the sliding rod and the sliding cylinder, an ink box is fixedly connected to the bottom of the sliding rod, a marking roller is rotatably installed on the bottom of the ink box, the bottom of the marking roller is abutted against the surface of the ceramic corundum grinding tool, an induction block is fixedly provided on the upper end of the ink box, an extension plate is fixedly provided on the outside of the sliding cylinder, a photoelectric sensor is fixedly provided on the extension plate, and the detection end of the photoelectric sensor is facing the induction block.

[0007] As a further solution of the present invention: a discharge port is provided at the bottom of the ink box, an ink immersion roller is rotatably mounted on the discharge port, the upper half of the ink immersion roller extends into the interior of the ink box, and the lower half of the ink immersion roller passes through the ink box and rolls against the top of the marking roller.

[0008] As a further solution of the present invention: the adjusting assembly includes an adjusting screw and a baffle, the adjusting screw thread passes through the top of the upper sleeve, the baffle is slidably installed in the inner cavity of the upper sleeve, the bottom end of the adjusting screw is rotatably matched with the upper end of the baffle, a connecting rod is fixedly provided at the bottom of the baffle, and a reset spring is provided between the bottom of the baffle and the top of the lower sleeve.

[0009] As a further solution of the present invention: the grinding assembly includes a mounting sleeve, the bottom end of the connecting rod passes through the lower sleeve and is fixedly connected to the mounting sleeve, a grinding motor is fixedly arranged in the mounting sleeve, the output end of the grinding motor is connected to a rotating shaft, the rotating shaft slides through the stabilizing frame and is connected to the grinding head, limiting grooves are penetrated on both sides of the lower sleeve, limiting rods are extended on both sides of the mounting sleeve, and the limiting rods are slid up and down and installed in the limiting grooves.

[0010] As a further solution of the present invention: the grinding head is a special-shaped sphere, the bottom of the grinding head is a plane forming a flat grinding portion, the side of the grinding head is a spherical surface forming a curved grinding portion, the bottom of the rotating shaft is rotatably matched with the center of the grinding head, a clearance groove adapted to the rotating shaft is arranged on the inner wall of the grinding head, and the clearance groove is L-shaped so that the grinding head can be flipped 90°, and a snap-fit ​​pressure plate for locking the rotating shaft is rotatably installed on the inner wall of the grinding head.

[0011] As a further solution of the present invention: the test bracket always rotates with the axis of the rotating shaft as the central axis, and the rolling path of the marking roller always points directly to the axis of the rotating shaft.

[0012] As a further solution of the present invention: the clamping mechanism includes an L-shaped pressing block and a clamping screw, the upper end of the L-shaped pressing block is penetrated by a movable groove, the bottom end of the clamping screw passes through the movable groove and is fixedly connected to the test bench, the top end of the clamping screw is locked to the upper end of the L-shaped pressing block by a nut, an extrusion spring is arranged between the bottom of the L-shaped pressing block and the test bench, an eccentric wheel is rotatably installed at the tail end of the L-shaped pressing block, a pressure rod is fixedly arranged on one side of the eccentric wheel, a pressure groove is arranged on the test bench, and the bottom of the eccentric wheel rests against the pressure groove.

[0013] Beneficial effects of the present invention: (1) By setting up a test mechanism, during the test, the test bracket is rotated until the rolling direction of the marking roller is consistent with the grinding movement route of the grinding component. The rotatable adjustability of the test bracket can meet the needs of adapting to different grinding test routes. At the same time, the marking roller always rests on the grinding surface of the ceramic corundum abrasive under the action of the return spring. During the rolling process, the marking roller can be stained with ink pigment in the ink box while rolling. Combined with the characteristics of large pores and strong permeability of ceramic abrasives, the ink pigment will be able to penetrate into the surface of the abrasive after grinding, so that the grinding test route can be intuitively recorded. At the same time, the photoelectric sensor can monitor the displacement distance change of the sensing block in real time. By comparing the spacing change of the sensing block before and after grinding, the grinding thickness of the ceramic corundum abrasive surface is analyzed and fed back, thereby reflecting the wear performance of the ceramic corundum abrasive, effectively improving the detection accuracy.

[0014] (2) By setting the adjustment component and the grinding component, during the grinding test, the adjustment screw is turned downward, and the adjustment screw will drive the mounting sleeve to move downward synchronously through the connecting rod. At the same time, the reset spring is compressed and deformed, and the mounting sleeve drives the grinding motor to descend. At this time, the grinding pressure of the grinding head against the surface of the ceramic corundum abrasive tool will increase. Similarly, when the adjustment screw is turned upward, under the elastic force of the reset spring, the mounting sleeve will drive the grinding motor to move upward. At this time, the grinding pressure applied by the grinding head will decrease, thereby realizing the control and adjustment process of the grinding test pressure on the surface of the ceramic corundum abrasive tool, which is convenient for detecting the wear of the abrasive tool surface under different pressures.

[0015] (3) The grinding head can be flipped 90° around the center of the circle, and after flipping, the rotating shaft can be locked and fixed by the corresponding snap-fit ​​pressure plate, so that free switching and adjustment can be achieved between the flat grinding part and the curved grinding part. Different grinding surfaces can be selected according to actual test requirements to facilitate testing of the wear of ceramic corundum abrasive tools under different grinding surface tests. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The present invention will be further described below in conjunction with the accompanying drawings.

[0017] Figure 1It is a schematic diagram of the overall structure of the present invention.

[0018] Figure 2 It is a bottom view schematic diagram of the test bench in the present invention.

[0019] Figure 3 It is a schematic diagram of the internal structure of the test bench in the present invention.

[0020] Figure 4 yes Figure 1 Schematic diagram of the enlarged structure at point A in the middle.

[0021] Figure 5 It is a structural schematic diagram of the movable sleeve in the present invention.

[0022] Figure 6 It is a schematic structural diagram of the upper sleeve and the lower sleeve in the present invention.

[0023] Figure 7 It is an exploded schematic diagram of the internal structure of the upper sleeve and the lower sleeve in the present invention.

[0024] Figure 8 It is a schematic structural diagram of the grinding head in the present invention.

[0025] Fig. 9 It is a structural schematic diagram of the testing mechanism in the present invention.

[0026] Fig.10 It is a schematic diagram of the internal structure of the slide cylinder in the present invention.

[0027] In the figure: 1. test bench; 101. sedimentation tank; 102. mounting block; 103. side slide; 2. ceramic corundum abrasive; 3. movable sleeve; 301. electric slide rail; 302. sliding block; 4. clamping mechanism; 401. L-shaped clamp; 402. movable groove; 403. clamping screw; 404. extrusion spring; 405. eccentric wheel; 406. pressure rod; 407. pressure groove; 5. displacement motor; 501. displacement screw; 6. suction pump; 601. discharge pipe; 7. upper sleeve; 701. adjusting screw; 702. baffle; 703. connecting rod; 704. reset Spring; 8, lower sleeve; 801, stabilizing frame; 802, limiting groove; 803, mounting sleeve; 804, limiting rod; 805, grinding motor; 806, rotating shaft; 807, grinding head; 8071, flat grinding part; 8072, curved grinding part; 8073, giving way groove; 8074, snap-fitting pressure plate; 9, testing mechanism; 901, testing bracket; 902, slide cylinder; 903, extension plate; 904, photoelectric sensor; 905, slide rod; 906, ink box; 907, marking roller; 908, induction block; 909, return spring; 910, ink immersion roller. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. 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 creative work are within the scope of protection of the present invention.

[0029] See also Figure 1 , Figure 2 , Figure 3 and Figure 5 As shown, the present invention is a device for testing the surface wear of a ceramic corundum abrasive, comprising a test bench 1, a sedimentation tank 101 is arranged at the upper end of the test bench 1, mounting blocks 102 are arranged at the four corners of the bottom of the sedimentation tank 101, a ceramic corundum grinding tool 2 with the surface facing upward is arranged at the upper end of the mounting block 102, side slide grooves 103 are arranged on both sides of the test bench 1, a movable sleeve 3 is slidably installed in the side slide grooves 103, a clamping mechanism 4 is distributed at the four corners of the upper end of the test bench 1, a displacement motor 5 and a suction pump 6 are fixedly arranged at the bottom of the test bench 1, and the output end of the displacement motor 5 is connected to A displacement screw 501, the displacement screw 501 threadedly passes through the bottom of the movable sleeve 3, the suction pump 6 is connected to one end of the discharge pipe 601, the other end of the discharge pipe 601 is connected to the sedimentation tank 101, an electric slide rail 301 is arranged at the top of the movable sleeve 3, a sliding block 302 is slidably installed on the electric slide rail 301, an upper sleeve 7 is fixedly arranged at the center of the sliding block 302, a lower sleeve 8 is fixedly connected to the bottom of the upper sleeve 7, an adjustment component is arranged in the upper sleeve 7, a grinding component is arranged in the lower sleeve 8, and a testing mechanism 9 is rotatably installed on the outer side of the lower sleeve 8.

[0030] Specifically, by setting the movable sleeve 3, during the grinding test, the ceramic corundum abrasive tool 2 is stably placed on the mounting block 102 for positioning, and the ceramic corundum abrasive tool 2 is locked by the clamping mechanism 4 at the four corners, and the movable sleeve 3 can be driven to move longitudinally by the displacement motor 5 and the displacement screw 501, and the upper sleeve 7 and the lower sleeve 8 can be driven to move laterally by the electric slide rail 301 and the sliding block 302, so that the grinding assembly can be ground on the surface of the ceramic corundum abrasive tool 2 according to the specified route according to the actual test requirements, which can be a horizontal grinding test, a longitudinal grinding test, or a grinding test of an oblique route. During the grinding test, the grinding depth of the grinding assembly can be adjusted by the adjustment assembly, and the wear degree of the ceramic corundum abrasive tool 2 can be detected in real time by the testing mechanism 9, and the waste generated by the grinding will fall directly into the sedimentation tank 101, and the negative pressure suction generated by the suction pump 6 can directly suck the grinding waste into the discharge pipe 601 for easy discharge and collection.

[0031] It should be noted that the surface grinding layer of the ceramic corundum abrasive tool 2 in this embodiment uses ceramic corundum abrasives, and the surface of the traditional ceramic corundum abrasives is smooth, resulting in low bonding strength between it and the binder. In this embodiment, chemical etching materials (sodium fluoride, borax, boric acid, sodium hydroxide, etc.) are used to etch the surface of the ceramic corundum particles under high temperature conditions, forming certain etching marks on the surface of the abrasive, and such marks have certain ups and downs and depths. When the abrasive tool is made, the thickness and bonding strength of the transition layer formed with the binder can be improved, thereby extending the life of the abrasive tool.

[0032] The specific production process is carried out according to the following steps. First, the additives (polyethylene glycol, methyl cellulose and starch) and water are mixed in a dispersion kettle to form a stable liquid. Then, the etching material is added. The soluble etching material is dissolved in the liquid phase, and the slightly soluble or insoluble material is dispersed into a uniform suspension. Then, the dispersed liquid and the ceramic corundum abrasive are mixed evenly in a mixing kettle. The liquid is evenly attached to the surface of the ceramic corundum particles. Then, the surface of the ceramic corundum is dried to form a stable coating film, so that the surface grinding layer of the ceramic corundum grinding tool 2 is made.

[0033] like Fig. 9 and Fig.10 As shown, the testing mechanism 9 includes a testing bracket 901, a stabilizing frame 801 is extended from the bottom of the lower sleeve 8, the upper and lower ends of the testing bracket 901 are respectively rotatably matched with the upper sleeve 7 and the stabilizing frame 801, a slide 902 is fixedly provided on the outside of the testing bracket 901, a slide bar 905 is axially slidably installed inside the slide bar 902, a return spring 909 is provided between the top of the slide bar 905 and the slide bar 902, an ink box 906 is fixedly connected to the bottom of the slide bar 905, a marking roller 907 is rotatably installed at the bottom of the ink box 906, and the bottom of the marking roller 907 is abutted against the surface of the ceramic corundum grinding tool 2, a sensing block 908 is fixedly provided on the upper end of the ink box 906, an extension plate 903 is fixedly provided on the outside of the slide bar 902, a photoelectric sensor 904 is fixedly provided on the extension plate 903, and the detection end of the photoelectric sensor 904 is facing the sensing block 908.

[0034] Specifically, by setting up the test mechanism 9, during the test process, the test bracket 901 is rotated until the rolling direction of the marking roller 907 is consistent with the grinding movement route of the grinding assembly. The rotatable adjustability of the test bracket 901 can meet the needs of adapting to different grinding test routes. At the same time, the marking roller 907 always rests on the grinding surface of the ceramic corundum grinding tool 2 under the action of the return spring 909. During the rolling process, the marking roller 907 can be stained with the ink pigment in the ink box 906 while rolling. Combined with the characteristics of large pores and strong permeability of ceramic abrasives, the ink pigment will be able to penetrate into the surface of the grinding tool after grinding, so that the grinding test route can be intuitively recorded. At the same time, the photoelectric sensor 904 can monitor the displacement distance change of the sensing block 908 in real time, and analyze and feedback the grinding thickness of the surface of the ceramic corundum grinding tool 2 by comparing the spacing change of the sensing block 908 before and after grinding, thereby reflecting the wear performance of the ceramic corundum grinding tool 2 and effectively improving the detection accuracy.

[0035] like Fig.10 As shown, a discharge port is provided at the bottom of the ink box 906, and an ink immersion roller 910 is rotatably mounted on the discharge port. The upper half of the ink immersion roller 910 extends into the interior of the ink box 906, and the lower half of the ink immersion roller 910 passes through the ink box 906 and rolls against the top of the marking roller 907.

[0036] Specifically, by setting an ink-immersing roller 910, when the ink-immersing roller 910 rotates, the upper part is used to absorb ink, and the lower part is used to apply the absorbed ink to the outer circumferential surface of the marking roller 907. Since the top of the marking roller 907 is tightly against the ink-immersing roller 910, the ink can be fully applied during the rolling and extruding process to avoid missing ink, effectively ensuring the uniformity of the inking process, which is beneficial to the route marking process. At the same time, the extrusion and coating ink output method can effectively reduce the amount of ink used, save resources, and will not cause ink leakage, thereby avoiding affecting the marking process.

[0037] like Figure 6 and Figure 7 As shown, the adjustment assembly includes an adjustment screw 701 and a baffle 702. The adjustment screw 701 thread passes through the top of the upper sleeve 7, and the baffle 702 is slidably installed in the inner cavity of the upper sleeve 7. The bottom end of the adjustment screw 701 rotates with the upper end of the baffle 702. A connecting rod 703 is fixedly provided at the bottom of the baffle 702, and a return spring 704 is provided between the bottom of the baffle 702 and the top of the lower sleeve 8.

[0038] Furthermore, the grinding assembly includes a mounting sleeve 803, the bottom end of the connecting rod 703 passes through the lower sleeve 8 and is fixedly connected to the mounting sleeve 803, a grinding motor 805 is fixedly arranged in the mounting sleeve 803, the output end of the grinding motor 805 is connected to a rotating shaft 806, the rotating shaft 806 slides through the stabilizing frame 801 and is connected to a grinding head 807, limiting grooves 802 are penetrated on both sides of the lower sleeve 8, limiting rods 804 are extended on both sides of the mounting sleeve 803, and the limiting rods 804 are slid up and down and installed in the limiting grooves 802.

[0039] Specifically, by setting up the adjustment component and the grinding component, during the grinding test process, the adjustment screw 701 is rotated downward, and the adjustment screw 701 will drive the mounting sleeve 803 to move downward synchronously through the connecting rod 703. At the same time, the reset spring 704 is compressed and deformed, and the mounting sleeve 803 drives the grinding motor 805 to descend. At this time, the grinding pressure of the grinding head 807 against the surface of the ceramic corundum grinding tool 2 will increase. Similarly, when the adjustment screw 701 is rotated upward, under the elastic force of the reset spring 704, the mounting sleeve 803 will drive the grinding motor 805 to move upward. At this time, the grinding pressure applied by the grinding head 807 will decrease, thereby realizing the control and adjustment process of the grinding test pressure on the surface of the ceramic corundum grinding tool 2, which is convenient for detecting the wear of the grinding tool surface under different pressures.

[0040] It should be noted that during the up and down movement of the mounting sleeve 803, the limiting rod 804 will always keep sliding in the limiting groove 802. By utilizing the rotation constraint of the limiting rod 804, the mounting sleeve 803 can only perform axial displacement in the lower sleeve 8, avoiding unnecessary rotation and ensuring the stability of the up and down sliding process of the mounting sleeve 803.

[0041] like Figure 8 As shown, the grinding head 807 is a special-shaped sphere, the bottom of the grinding head 807 is a plane forming a plane grinding portion 8071, the side of the grinding head 807 is a spherical surface forming a curved grinding portion 8072, the bottom of the rotating shaft 806 is rotatably matched with the center of the grinding head 807, and a clearance groove 8073 adapted to the rotating shaft 806 is provided on the inner wall of the grinding head 807, and the clearance groove 8073 is L-shaped so that the grinding head 807 can be flipped 90°, and a snap-fit ​​pressure plate 8074 for locking the rotating shaft 806 is rotatably installed on the inner wall of the grinding head 807.

[0042] Specifically, the grinding head 807 in this embodiment can be flipped 90° around the center of the circle, and after flipping, the rotating shaft 806 is locked and fixed by the corresponding snap-fit ​​pressure plate 8074, so that free switching and adjustment can be achieved between the flat grinding part 8071 and the curved grinding part 8072, and different grinding surfaces can be selected according to actual test requirements, so as to facilitate testing of the wear of the ceramic corundum grinding tool 2 under different grinding surface tests.

[0043] like Figure 6 As shown, the test bracket 901 always rotates with the axis of the rotating shaft 806 as the central axis, and the rolling path of the marking roller 907 always points directly to the axis of the rotating shaft 806.

[0044] like Figure 4 As shown, the clamping mechanism 4 includes an L-shaped pressing block 401 and a clamping screw 403. The upper end of the L-shaped pressing block 401 is penetrated by a movable groove 402. The lower end of the clamping screw 403 passes through the movable groove 402 and is fixedly connected to the test bench 1. The top of the clamping screw 403 is locked to the upper end of the L-shaped pressing block 401 by a nut. An extrusion spring 404 is arranged between the bottom of the L-shaped pressing block 401 and the test bench 1. An eccentric wheel 405 is rotatably installed at the tail end of the L-shaped pressing block 401. A pressing rod 406 is fixedly arranged on one side of the eccentric wheel 405. A pressing groove 407 is arranged on the test bench 1, and the bottom of the eccentric wheel 405 rests against the pressing groove 407.

[0045] Specifically, by setting the clamping mechanism 4, after the ceramic corundum mold 2 is installed, the pressure rod 406 is pressed downward to rotate the eccentric wheel 405, and the clamping section at the bottom of the eccentric wheel 405 cooperates with the pressure groove 407 to apply pressure to the L-shaped pressure block 401, so that the L-shaped pressure block 401 is tightly pressed downward against the surface of the ceramic corundum mold 2, and the nut is rotated at the same time to lock and position it using the clamping screw 403 to ensure that the L-shaped pressure block 401 maintains the clamping state and does not move. When the ceramic corundum mold 2 needs to be unloaded, the pressure rod 406 is lifted upward to make the eccentric wheel 405 rotate in the opposite direction. At this time, the eccentric wheel 405 will drive the L-shaped pressure block 401 to relax and move outward, and the movable groove 402 provides a movable space for the relative movement between the L-shaped pressure block 401 and the clamping screw 403. At this time, the L-shaped pressure block 401 no longer presses the ceramic corundum mold 2, thereby contacting the clamping state.

[0046] The working principle of the present invention is as follows: Figure 1-Figure 10As shown, when in use, the ceramic corundum grinding tool 2 is securely placed on the mounting block 102 for positioning, and the ceramic corundum grinding tool 2 is locked by the clamping mechanisms 4 at the four corners. The displacement motor 5 and the displacement screw 501 can drive the movable sleeve 3 to perform longitudinal displacement, and the electric slide rail 301 and the sliding block 302 can drive the upper sleeve 7 and the lower sleeve 8 to perform lateral displacement, so that the grinding assembly can perform a grinding process on the surface of the ceramic corundum grinding tool 2 according to the specified route according to actual test requirements. During the grinding test, the adjusting screw 701 is rotated downward, and the adjusting screw 701 will drive the mounting sleeve 803 to move downward synchronously through the connecting rod 703. At the same time, the reset spring 704 is compressed and deformed, and the mounting sleeve 803 drives the grinding motor 805 to descend. At this time, the grinding pressure of the grinding head 807 against the surface of the ceramic corundum grinding tool 2 will increase. Similarly, when the adjusting screw 701 is rotated upward, under the elastic force of the reset spring 704, the mounting sleeve 803 will drive the grinding motor 805 to move upward. At this time, the grinding pressure applied by the grinding head 807 will decrease, thereby realizing the control and adjustment process of the grinding test pressure on the surface of the ceramic corundum grinding tool 2, which is convenient for detecting the wear of the grinding tool surface under different pressures. During the test, the test bracket 901 is rotated until the rolling direction of the marking roller 907 is consistent with the grinding movement route of the grinding assembly. The rotatable adjustability of the test bracket 901 can be used to adapt to different grinding test routes. At the same time, the marking roller 907 is always against the grinding surface of the ceramic corundum abrasive tool 2 under the action of the return spring 909. During the rolling process, the marking roller 907 can be stained with the ink pigment in the ink box 906 while rolling. Combined with the characteristics of large pores and strong permeability of ceramic abrasives, the ink pigment will be able to penetrate into the surface of the abrasive tool after grinding, so that the grinding test route can be intuitively recorded. At the same time, the photoelectric sensor 904 can monitor the displacement distance change of the sensing block 908 in real time, and analyze and feedback the grinding thickness of the surface of the ceramic corundum abrasive tool 2 by comparing the spacing change of the sensing block 908 before and after grinding, thereby reflecting the wear performance of the ceramic corundum abrasive tool 2.

[0047] The above is a detailed description of an embodiment of the present invention, but the content is only a preferred embodiment of the present invention and cannot be considered to limit the scope of implementation of the present invention. All equivalent changes and improvements made within the scope of the present invention should still fall within the scope of the patent coverage of the present invention.

Claims

1. A device for testing the surface wear of a ceramic corundum abrasive, comprising a test bench (1), wherein a sedimentation tank (101) is arranged at the upper end of the test bench (1), mounting blocks (102) are arranged at the four corners of the bottom of the sedimentation tank (101), and a ceramic corundum abrasive tool (2) with its surface facing upward is arranged at the upper end of the mounting block (102), characterized in that: The test bench (1) is provided with side slide grooves (103) on both sides, and a movable sleeve frame (3) is slidably installed in the side slide grooves (103). The four corners of the upper end of the test bench (1) are provided with clamping mechanisms (4). The bottom of the test bench (1) is fixedly provided with a displacement motor (5) and a suction pump (6). The output end of the displacement motor (5) is connected to a displacement screw (501), and the displacement screw (501) is threadedly penetrated through the bottom of the movable sleeve frame (3). The suction pump (6) is connected to one end of a discharge pipe (601). The other end of the discharge pipe (601) is connected to the sedimentation tank (101), an electric slide rail (301) is arranged inside the top of the movable sleeve frame (3), a sliding block (302) is slidably mounted on the electric slide rail (301), an upper sleeve (7) is fixedly arranged at the center of the sliding block (302), a lower sleeve (8) is fixedly connected to the bottom of the upper sleeve (7), an adjustment component is arranged inside the upper sleeve (7), a grinding component is arranged inside the lower sleeve (8), and a testing mechanism (9) is rotatably mounted on the outer side of the lower sleeve (8); The testing mechanism (9) comprises a testing bracket (901), a stabilizing frame (801) is extended from the bottom of the lower sleeve (8), the upper and lower ends of the testing bracket (901) are respectively rotatably matched with the upper sleeve (7) and the stabilizing frame (801), a sliding cylinder (902) is fixedly arranged on the outside of the testing bracket (901), a sliding rod (905) is axially slidably installed inside the sliding cylinder (902), a return spring (909) is arranged between the top end of the sliding rod (905) and the sliding cylinder (902), and the sliding rod (90 5) An ink box (906) is fixedly connected to the bottom, a marking roller (907) is rotatably mounted on the bottom of the ink box (906), the bottom of the marking roller (907) is in contact with the surface of the ceramic corundum grinding tool (2), a sensing block (908) is fixedly arranged on the upper end of the ink box (906), an extension plate (903) is fixedly arranged on the outer side of the slide cylinder (902), a photoelectric sensor (904) is fixedly arranged on the extension plate (903), and the detection end of the photoelectric sensor (904) is facing the sensing block (908).

2. A ceramic corundum abrasive surface wear test device according to claim 1, characterized in that: The bottom of the ink box (906) is provided with a discharge port, and an ink immersion roller (910) is rotatably mounted on the discharge port; the upper part of the ink immersion roller (910) extends into the interior of the ink box (906), and the lower part of the ink immersion roller (910) passes through the ink box (906) and rolls against the top of the marking roller (907).

3. A ceramic corundum abrasive surface wear test device according to claim 1, characterized in that: The adjustment assembly comprises an adjustment screw (701) and a baffle (702), wherein the adjustment screw (701) is threadedly inserted through the top of the upper sleeve (7), and the baffle (702) is slidably installed in the inner cavity of the upper sleeve (7), and the bottom end of the adjustment screw (701) is rotationally matched with the upper end of the baffle (702), a connecting rod (703) is fixedly arranged at the bottom of the baffle (702), and a return spring (704) is arranged between the bottom of the baffle (702) and the top of the lower sleeve (8).

4. A ceramic corundum abrasive surface wear test device according to claim 3, characterized in that: The grinding assembly comprises a mounting sleeve (803), the bottom end of the connecting rod (703) passes through the lower sleeve (8) and is fixedly connected to the mounting sleeve (803), a grinding motor (805) is fixedly arranged in the mounting sleeve (803), the output end of the grinding motor (805) is connected to a rotating shaft (806), the rotating shaft (806) slides through the stabilizing frame (801) and is connected to a grinding head (807), limiting grooves (802) are penetrated on both sides of the lower sleeve (8), limiting rods (804) are extended on both sides of the mounting sleeve (803), and the limiting rods (804) are slidably installed in the limiting grooves (802) up and down.

5. A ceramic corundum abrasive surface wear test device according to claim 4, characterized in that: The grinding head (807) is a special-shaped sphere. The bottom of the grinding head (807) is a plane forming a plane grinding portion (8071). The side of the grinding head (807) is a spherical surface forming a curved grinding portion (8072). The bottom of the rotating shaft (806) is rotatably matched with the center of the grinding head (807). A clearance groove (8073) matching the rotating shaft (806) is arranged on the inner wall of the grinding head (807). The clearance groove (8073) is arranged in an L shape so that the grinding head (807) can be turned over by 90 degrees. A buckling pressure plate (8074) for locking the rotating shaft (806) is rotatably installed on the inner wall of the grinding head (807).

6. A ceramic corundum abrasive surface wear test device according to claim 4, characterized in that: The test bracket (901) always rotates with the axis of the rotating shaft (806) as the central axis, and the rolling path of the marking roller (907) always points directly to the axis of the rotating shaft (806).

7. A ceramic corundum abrasive surface wear test device according to claim 1, characterized in that: The clamping mechanism (4) comprises an L-shaped pressing block (401) and a clamping screw (403); the upper end of the L-shaped pressing block (401) is provided with a movable groove (402); the lower end of the clamping screw (403) passes through the movable groove (402) and is fixedly connected to the test bench (1); the top end of the clamping screw (403) is locked to the upper end of the L-shaped pressing block (401) by a nut; an extrusion spring (404) is provided between the bottom of the L-shaped pressing block (401) and the test bench (1); an eccentric wheel (405) is rotatably mounted at the rear end of the L-shaped pressing block (401); a pressing rod (406) is fixedly provided on one side of the eccentric wheel (405); a pressing groove (407) is provided on the test bench (1), and the bottom of the eccentric wheel (405) abuts against the pressing groove (407).

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