Failure analysis instrument for nitrided layer

Abstract

The utility model relates to detection technical field discloses the failure analyser for nitriding layer, including the cabinet, the upside fixed mounting of cabinet has the scanning electron microscope, the inside downside fixed mounting of cabinet has the speed reducer, the output fixed mounting of speed reducer has the grinding disc, the inside one side fixed mounting of cabinet has the collection bin, the other side fixed mounting of cabinet inside has the clamping assembly, and the grinding disc is located in the collection bin, cabinet is opened and is used for the upper through -hole of alignment scanning electron microscope detection end, and the collection bin opens and has the lower through -hole of alignment upper through -hole, and the upside mounting of collection bin is used for the shielding assembly of blocking lower through -hole. The utility model discloses the design of integration clamping assembly, grinding disc and scanning electron microscope in one, realized the downward grinding of the same sample, the upward detection after turning over, and the detection staff does not need to repeatedly shift the sample back and forth at the grinding and detection station, significantly reduces the strength of manual operation, improves the efficiency of overall detection.

Description

Technical Field

[0001] This utility model relates to the field of detection technology, specifically to a failure analyzer for nitrided layers. Background Technology

[0002] The nitrided layer is a nitrogen-rich hardened structure formed on the surface of steel through nitriding treatment. The hardness of the nitrided layer can reach more than 1000 HV, which is significantly higher than that of quenched steel (500-600 HV), and the wear resistance is improved by 3 to 5 times.

[0003] To study the impact of wear on the nitrided layer, failure analysis of the nitrided layer is required. First, a sample with a nitrided layer (usually cylindrical with a nitrided layer at one end) is prepared. The nitrided end of the sample is placed in a grinder for grinding. Then, information about the nitrided layer is collected using a scanning electron microscope to obtain the analysis results. However, to ensure data reliability, 3 to 5 parallel samples need to be set up for the same parameter group, and each sample needs to undergo at least 5 grinding-inspection cycles. This will increase the workload of the inspector in repeatedly transferring samples.

[0004] Therefore, in order to solve the above problems, a failure analyzer for nitrided layers is proposed. Utility Model Content

[0005] The purpose of this invention is to provide a failure analyzer for nitrided layers, which can perform multiple grinding and testing operations on the same sample, thereby solving the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a failure analyzer for nitrided layers, comprising a cabinet, a scanning electron microscope fixedly mounted on the upper side of the cabinet, a geared motor fixedly mounted on the lower side inside the cabinet, a grinding disc fixedly mounted on the output end of the geared motor, a collection chamber fixedly mounted on one side inside the cabinet, and a clamping assembly fixedly mounted on the other side inside the cabinet, the grinding disc being located within the collection chamber; the cabinet has an upper through-hole for aligning with the detection end of the scanning electron microscope, the collection chamber has a lower through-hole aligned with the upper through-hole, and a shielding assembly for blocking the lower through-hole is mounted on the upper side of the collection chamber.

[0007] Specifically, the clamping assembly includes an electric lead screw module, an electric rotary table, and an electric gripper. The electric lead screw module is vertically fixed inside the cabinet. One end of the electric rotary table is fixedly mounted on the slide of the electric lead screw module, and the other end of the electric rotary table is fixedly mounted on the electric gripper. The electric gripper is horizontally positioned, and the gripper head is located between the upper through hole and the lower through hole.

[0008] Furthermore, the clamping assembly also includes a distance sensor, which is fixedly installed on the side of the electric lead screw module near the collection bin.

[0009] Specifically, the shielding assembly includes an L-shaped plate, a baffle, and a servo motor. A pair of L-shaped plates are fixedly installed on the upper side of the collection compartment, and a baffle for shielding the lower through hole is slidably assembled between the pair of L-shaped plates. The servo motor is fixedly assembled with the cabinet, and a linear bearing is fixedly installed at the output end of the servo motor. A light rod is slidably installed inside the linear bearing, and the lower end of the light rod is connected to the baffle through a rotating joint.

[0010] Specifically, rubber rings are fixedly installed in both the upper and lower through holes.

[0011] Specifically, an induction heater is fixedly installed on the rear side of the cabinet, and the heating coil of the induction heater extends into the collection compartment and is located between the lower through hole and the grinding disc.

[0012] Specifically, the bottom surface of the collection bin is inclined, that is, the end closer to the electric lead screw module is higher than the end farther away from the electric lead screw module, and a discharge pipe connecting the collection bin is fixedly installed on the side wall of the cabinet.

[0013] Specifically, the discharge pipe is fitted with a cap via a connecting rope, and the end of the discharge pipe furthest from the collection bin is connected to the cap.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] By integrating the clamping assembly, grinding disc, and scanning electron microscope into one unit, the same sample can be ground downwards, flipped over, and then inspected upwards. This eliminates the need for inspectors to repeatedly transfer samples back and forth between the grinding and inspection stations, significantly reducing the intensity of manual operations and improving the overall inspection efficiency. Attached Figure Description

[0016] Figure 1 This is a schematic front view of the structure of this utility model;

[0017] Figure 2 This is a schematic cross-sectional view of the internal structure of the cabinet of this utility model;

[0018] Figure 3 This is a schematic diagram of the structure of the shielding component of this utility model;

[0019] Figure 4 This is a rear view illustrating the structure of this utility model.

[0020] In the diagram: 1. Scanning electron microscope, 2. Shielding assembly, 21. L-shaped plate, 22. Baffle, 23. Optical rod, 24. Linear bearing, 25. Servo motor, 3. Collection bin, 4. Discharge pipe, 5. Clamping assembly, 51. Electric lead screw module, 52. Electric rotary table, 53. Electric gripper, 54. Distance sensor, 6. Grinding disc, 7. Gear motor, 8. Cabinet, 9. Induction heater, 10. Cover, 11. Rubber ring. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Please see Figure 1 This utility model provides a technical solution: a failure analyzer for nitrided layers, including a cabinet 8. The cabinet 8 is an existing component consisting of a cabinet body and a cabinet door hinged to the front. A scanning electron microscope 1 is fixedly installed on the upper side of the cabinet 8. The scanning electron microscope 1 is an existing high-resolution microscope that uses a focused electron beam to scan the sample surface and obtains sample morphology and composition information by detecting the signal generated by the interaction. It is used to detect the surface of the nitrided layer.

[0023] A geared motor 7 is fixedly installed inside the lower side of the cabinet 8. A grinding disc 6 is fixedly installed at the output end of the geared motor 7. A collection chamber 3 is fixedly installed on one side inside the cabinet 8. A clamping assembly 5 is fixedly installed on the other side inside the cabinet 8. The grinding disc 6 is located inside the collection chamber 3. The geared motor 7 is used to rotate the grinding disc 6, thereby grinding the sample in contact. The ground powder falls into the collection chamber 3 for collection. The clamping assembly 5 is used to clamp and transfer the sample.

[0024] The cabinet 8 has an upper through hole for aligning with the detection end of the scanning electron microscope 1, and the collection chamber 3 has a lower through hole aligned with the upper through hole. A shielding component 2 for blocking the lower through hole is installed on the upper side of the collection chamber 3. The clamping component 5 can clamp the sample into the upper through hole for detection or insert it into the lower through hole for grinding. The shielding component 2 can prevent internal dust from entering the cabinet 8 after blocking the lower through hole. Only when the lower through hole is not blocked can the sample be inserted into the lower through hole.

[0025] Specifically:

[0026] Please see Figure 2The clamping assembly 5 includes an electric lead screw module 51, an electric rotary table 52, and an electric gripper 53. The electric lead screw module 51 is vertically fixed inside the cabinet 8. One end of the electric rotary table 52 is fixedly mounted on the slide of the electric lead screw module 51, and the other end of the electric rotary table 52 is fixedly mounted on the electric gripper 53. The electric gripper 53 is horizontally arranged, and the gripper head of the electric gripper 53 is located between the upper through hole and the lower through hole.

[0027] The electric gripper 53, the electric lead screw module 51, and the electric rotary table 52 are all existing components. The electric gripper 53 is used to hold the sample. The electric lead screw module 51 can vertically move the electric rotary table 52 and the electric gripper 53. The electric rotary table 52 can flip the electric gripper 53 so that the end of the sample with the nitrided layer can enter the lower through hole facing downwards, or flip it over and enter the upper through hole facing upwards. The same end can be ground and tested multiple times.

[0028] The clamping assembly 5 also includes a distance sensor 54. The distance sensor 54, such as an ultrasonic distance sensor, is fixedly installed on the side of the electric screw module 51 near the collection chamber 3. The distance sensor 54 is used to detect the moving position of the slide in the electric screw module 51, thereby indirectly knowing the position of the claw head in the electric gripper 53.

[0029] Please see Figure 3 The shielding assembly 2 includes an L-shaped plate 21, a baffle 22, and a servo motor 25. A pair of L-shaped plates 21 are fixedly installed on the upper side of the collection chamber 3. A baffle 22 for shielding the lower through hole is slidably assembled between the pair of L-shaped plates 21. The servo motor 25 is fixedly assembled with the cabinet 8. A linear bearing 24 is fixedly installed at the output end of the servo motor 25. A light rod 23 is slidably installed inside the linear bearing 24. The lower end of the light rod 23 is connected to the baffle 22 through a rotating joint.

[0030] The servo motor 25 has an encoder that can control the forward and reverse swing angle of the output shaft, thereby controlling the swing direction of the linear bearing 24. At the same time, the guide rod 23 can slide within the linear bearing 24 after being subjected to force. After being driven by the rotating joint at the lower end, it can reciprocate along the L-shaped plate 21 to move the baffle 22. After the baffle 22 moves to the left, it blocks the lower through hole. After the baffle 22 moves to the right, it opens the lower through hole.

[0031] In addition, rubber rings 11 are fixedly installed in both the upper and lower through holes. When the sample is inserted into the upper or lower through hole, it is press-fitted with the rubber rings 11 to ensure a more sealed environment during testing or grinding.

[0032] Please see Figure 4An induction heater 9 is fixedly installed on the rear side of the cabinet 8. The heating coil of the induction heater 9 extends into the collection chamber 3 and is located between the lower through hole and the grinding disc 6. The induction heater 9 is a device that uses the principle of electromagnetic induction to convert electrical energy into heat energy. It generates an alternating magnetic field through alternating current, which causes eddy currents inside the sample through the heating coil, thereby achieving rapid, efficient and precise heating to simulate the working conditions of the nitride layer being worn at different temperatures.

[0033] The bottom surface of the collection chamber 3 is inclined, that is, the end near the electric screw module 51 is higher than the end away from the electric screw module 51. The side wall of the cabinet 8 is fixedly installed with a discharge pipe 4 that connects to the collection chamber 3, which can discharge the ground powder outward through the inclined bottom surface and the discharge pipe 4.

[0034] Furthermore, the discharge pipe 4 is equipped with a cover 10 via a connecting rope. The cover 10 is made of rubber material. The end of the discharge pipe 4 away from the collection bin 3 is connected to the cover 10. The cover 10 is used to block the discharge pipe 4 and temporarily store the powder. The cover 10 is only opened when collecting and cleaning the powder.

[0035] A microcomputer with a display screen and an operation panel is fixedly installed on the upper side of cabinet 8. All the above-mentioned electrical components are electrically connected to the microcomputer and are controlled through the operation panel.

[0036] Working principle:

[0037] In the initial state, the lower baffle 22 in the shielding assembly 2 is in the position where the lower through hole is not shielded. After preparing the sample, open the cabinet door of the cabinet 8, insert the sample into the lower through hole, with the lower end passing through the heating coil and abutting against the grinding disc 6, and then close the cabinet door.

[0038] After startup, the electric lead screw module 51 moves the electric rotary table 52 and electric gripper 53 downwards. The electric gripper 53 then moves closer to each other until it clamps the sample. The grinding disc 6 is rotated by the geared motor 7 and then gradually fed downwards to grind the nitrided layer. The powder is collected by the collection chamber 3. Alternatively, the working conditions can be simulated by heating with the induction heater 9.

[0039] After grinding is completed, the geared motor 7 and the induction heater 9 stop. The electric gripper 53 is moved between the upper and lower through holes. At this time, the lower baffle 22 in the shielding assembly 2 shields the lower through hole. After the electric rotary table 52 flips the sample 180 degrees, the nitrided layer faces upward. The sample is then moved upward until it is inserted into the upper through hole. At this time, the scanning electron microscope 1 can detect the nitrided layer and display the analysis results on the display screen.

[0040] After completion, reset the sample, remove it, and proceed with the next sample test. The operation is convenient.

[0041] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0042] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A failure analyzer for nitrided layers, comprising a cabinet (8), wherein a scanning electron microscope (1) is fixedly mounted on the upper side of the cabinet (8), characterized in that: A geared motor (7) is fixedly installed on the lower inside of the cabinet (8). A grinding disc (6) is fixedly installed at the output end of the geared motor (7). A collection compartment (3) is fixedly installed on one side inside the cabinet (8). A clamping assembly (5) is fixedly installed on the other side inside the cabinet (8). The grinding disc (6) is located inside the collection compartment (3). The cabinet (8) has an upper through hole for aligning the detection end of the scanning electron microscope (1), the collection chamber (3) has a lower through hole for aligning the upper through hole, and a shielding component (2) for blocking the lower through hole is installed on the upper side of the collection chamber (3).

2. The failure analyzer for nitrided layers according to claim 1, characterized in that: The clamping assembly (5) includes an electric lead screw module (51), an electric rotary table (52), and an electric gripper (53). The electric lead screw module (51) is vertically fixed inside the cabinet (8). One end of the electric rotary table (52) is fixedly installed on the slide of the electric lead screw module (51), and the other end of the electric rotary table (52) is fixedly installed with an electric gripper (53). The electric gripper (53) is horizontally arranged, and the gripper head of the electric gripper (53) is located between the upper through hole and the lower through hole.

3. The failure analyzer for nitrided layers according to claim 2, characterized in that: The clamping assembly (5) also includes a distance sensor (54), and the distance sensor (54) is fixedly installed on the side of the electric screw module (51) near the collection bin (3).

4. The failure analyzer for nitrided layers according to claim 1, characterized in that: The shielding assembly (2) includes an L-shaped plate (21), a baffle (22) and a servo motor (25). A pair of L-shaped plates (21) are fixedly installed on the upper side of the collection bin (3). A baffle (22) for shielding the lower through hole is slidably assembled between the pair of L-shaped plates (21). The servo motor (25) is fixedly assembled with the cabinet (8). A linear bearing (24) is fixedly installed at the output end of the servo motor (25). A light rod (23) is slidably installed in the linear bearing (24). The lower end of the light rod (23) is connected to the baffle (22) through a rotating joint.

5. The failure analyzer for nitrided layers according to claim 1, characterized in that: Rubber rings (11) are fixedly installed in both the upper and lower through holes.

6. The failure analyzer for nitrided layers according to claim 1, characterized in that: An induction heater (9) is fixedly installed on the rear side of the cabinet (8). The heating coil of the induction heater (9) extends into the collection chamber (3) and is located between the lower through hole and the grinding disc (6).

7. The failure analyzer for nitrided layers according to claim 1, characterized in that: The bottom surface of the collection bin (3) is inclined, that is, the end near the electric screw module (51) is higher than the end away from the electric screw module (51), and the side wall of the cabinet (8) is fixedly installed with a discharge pipe (4) that connects to the collection bin (3).

8. The failure analyzer for nitrided layers according to claim 7, characterized in that: The discharge pipe (4) is fitted with a cap (10) via a connecting rope, and the end of the discharge pipe (4) away from the collection bin (3) is fitted with a cap (10).

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