A hardness testing apparatus for steel

Abstract

The utility model provides a kind of hardness detection equipment for steel material, it is related to steel material technical field, including pedestal, the upper of pedestal is provided with pressing mechanism;Pressing mechanism includes fixed base, the bottom surface of fixed base is fixedly connected with the upper surface of pedestal, the upper surface of fixed base is fixedly connected with slide bar, the outer surface of slide bar is slidably connected with moving seat.The hardness detection equipment for steel material, through pressing mechanism, can select suitable thread pressure head according to the different of material quality, to improve the application range of device, by rotating motor drive object carrier disc carries out accurate rotation, object carrier disc drives infrared distance measuring sensor and telescopic link, pressure sensor, threaded fixing frame and thread pressure head composition pressing structure rotates around the axle of object carrier disc, telescopic link is used to drive pressure sensor, threaded fixing frame and thread pressure head and clamping seat upper surface contact, pressure sensor is extruded, and pressure sensor realizes the pressure measurement of steel material quality suffered.

Description

Technical Field

[0001] This utility model relates to a hardness testing device for steel, specifically a hardness testing device for steel, belonging to the field of steel technology. Background Technology

[0002] Steel is a material with a certain shape, size and properties made from steel ingots, billets or steel through pressure processing. Most steel processing is done through pressure processing, which causes the processed steel (billets, ingots, etc.) to undergo plastic deformation. Depending on the processing temperature, steel can be divided into cold working and hot working. As a common engineering material, steel needs to undergo hardness testing during the manufacturing process to ensure that its performance meets the design requirements.

[0003] Chinese Patent Publication CN212340817U discloses a steel hardness testing device for building safety testing, including a base, a first slide rail on the top of the base, a fixed seat movably connected to the inner cavity of the first slide rail, and a threaded rod movably connected to the inner cavity of the fixed seat. This invention, through the arrangement of the fixed seat, threaded rod, fixed blocks, first slide rail, second slide rail, and support column, allows the steel to be placed on the fixed seat. By controlling the threaded rod, the fixed blocks on both sides can be moved towards the steel, thereby clamping and fixing the steel securely and stably. The fixed seat can slide longitudinally within the first slide rail, and the support column can move laterally within the second slide rail. This enables the hardness testing device to detect the hardness of any point on the steel after it is fixed, facilitating adjustment and greatly improving testing efficiency. It also solves the problems of poor fixing effect and difficulty in adjustment after fixing in traditional hardness testing equipment.

[0004] The aforementioned patented technology can only clamp and hold square or rectangular steel materials when performing hardness testing. However, it fails to clamp and hold cylindrical steel materials well. Therefore, cylindrical steel materials are prone to slippage during hardness testing. In addition, different indenters are required for different steel materials. However, this technology uses a single indenter, which can only test steel materials of a single type. This not only results in low testing efficiency but also further limits the scope of application of the device.

[0005] Therefore, a hardness testing device for steel is proposed here. Utility Model Content

[0006] This invention proposes a hardness testing device for steel to solve the problems in the prior art that it cannot test round steel and cannot select the appropriate indenter according to different materials.

[0007] This utility model is achieved through the following technical solution: a hardness testing device for steel, comprising a base, with a pressing mechanism disposed above the base; the pressing mechanism includes a fixed seat, the bottom surface of which is fixedly connected to the upper surface of the base, a sliding rod fixedly connected to the upper surface of the fixed seat, a movable seat slidably connected to the outer surface of the sliding rod, a power supply device fixedly connected to the inner wall of the sliding rod, a loading plate fixedly connected to the bottom surface of the power supply device, two sets of telescopic rods fixedly connected to the bottom surface of the loading plate, a pressure sensor fixedly connected to the telescopic end of each telescopic rod, a threaded fixing bracket fixedly connected to the bottom surface of each pressure sensor, a threaded pressure head threadedly connected inside each threaded fixing bracket, a rotary motor fixedly connected to the inner wall of the power supply device, the power output end of the rotary motor fixedly connected to the upper surface of the loading plate, and several identical infrared ranging sensors fixedly connected to the bottom surface of the loading plate.

[0008] Below the pressing mechanism is a clamping mechanism, which includes a support base. A connecting plate is fixedly connected to the upper surface of the support base. A rotating shaft is rotatably connected to the inner wall of the connecting plate. A connecting seat is fixedly connected to the top of the rotating shaft. A clamping base is provided above the connecting plate. Two sets of clamping blocks are slidably connected inside the clamping base. A clamping plate is movably hinged to the bottom surface of each clamping block. The outer surface of each clamping plate is rotatably connected to the inner wall of the connecting seat. A connecting frame is fixedly connected to the bottom surface of two clamping blocks. Two electric push rods are fixedly connected to the outer surfaces of the two connecting frames. A clamping seat is provided above the support base. The outer surface of each clamping block is in contact with the outer surface of the clamping seat.

[0009] Each of the infrared ranging sensors has a reinforcing ring fixedly connected to its outer surface, and the top of each reinforcing ring is fixedly connected to the bottom surface of the loading tray.

[0010] The controller body is fixedly connected to the left side of the support base, and a fixing frame is fixedly connected to the outer surface of the controller body. The right side of the fixing frame is fixedly connected to the left side of the support base.

[0011] A fixing ring is fixedly connected to the outer surface of the slide rod, and the bottom end of the fixing ring is fixedly connected to the upper surface of the fixing seat.

[0012] The controller body is connected to the power supply equipment, telescopic rod, and pressure sensor wires via wires.

[0013] This utility model provides a hardness testing device for steel, which has the following beneficial effects:

[0014] 1. The hardness testing equipment for this steel material uses a pressing mechanism that allows for the selection of appropriate threaded pressure heads based on the material, thereby improving the applicability of the device. A rotary motor drives the loading plate to rotate precisely. The loading plate drives the infrared ranging sensor, along with the telescopic rod, pressure sensor, threaded fixing frame, and threaded pressure head, to rotate around the axis of the loading plate. Then, the telescopic rod extends and retracts, causing the pressure sensor, threaded fixing frame, and threaded pressure head to contact the upper surface of the clamping seat. The pressure sensor is compressed, thus enabling precise measurement of the pressure exerted on the steel material.

[0015] 2. The hardness testing equipment for this steel material, through a clamping mechanism, can clamp and fix cylindrical steel of different models, which is beneficial to improving the device's ability to fix steel of different volumes. The controller body controls the extension and retraction of the electric push rod under the support of the connecting frame. The extension and retraction of the electric push rod drives one set of clamping blocks to slide along the inside of the clamping chassis under the action of the movable hinge of the clamping plate. The clamping blocks can clamp different models of clamping seats, thereby improving the applicability of the device. Attached Figure Description

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

[0017] Figure 2 This is a schematic diagram of the movable seat structure of this utility model;

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

[0019] Figure 4 This is a schematic diagram of the clamping block structure of this utility model;

[0020] Figure 5 This is a schematic diagram of the connecting frame structure of this utility model;

[0021] Figure 6 This is a schematic diagram of the clamping plate structure of this utility model;

[0022] Figure 7 This is a cross-sectional view of the power supply equipment of this utility model;

[0023] Figure 8 This is a schematic diagram of the rotating shaft structure of this utility model;

[0024] Figure 9 This is a schematic diagram of the infrared ranging sensor structure of this utility model.

[0025] Explanation of reference numerals in the attached figures

[0026] 1. Base;

[0027] 2. Pressing mechanism; 201. Fixed base; 202. Movable base; 203. Power supply equipment; 204. Infrared ranging sensor; 205. Slide rod; 206. Telescopic rod; 207. Pressure sensor; 208. Threaded fixing bracket; 209. Threaded pressure head; 210. Rotary motor; 211. Loading tray;

[0028] 3. Clamping mechanism; 301. Support base; 302. Clamping base; 303. Connecting plate; 304. Clamping block; 305. Clamping chassis; 306. Clamping plate; 307. Connecting base; 308. Rotating shaft; 309. Connecting frame; 310. Electric push rod; 4. Controller body; 5. Fixing frame; 6. Fixing ring; 7. Reinforcing ring. Detailed Implementation

[0029] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of this application.

[0030] Please see Figures 1-9 This utility model provides a hardness testing device for steel, including a base 1, with a pressing mechanism 2 disposed above the base 1; the pressing mechanism 2 includes a fixed seat 201, the bottom surface of the fixed seat 201 being fixedly connected to the upper surface of the base 1, a sliding rod 205 being fixedly connected to the upper surface of the fixed seat 201, a movable seat 202 being slidably connected to the outer surface of the sliding rod 205, a power supply device 203 being fixedly connected to the inner wall of the sliding rod 205, and a loading tray 211 being fixedly connected to the bottom surface of the power supply device 203. Two sets of telescopic rods 206 are connected. Each telescopic rod 206 has a pressure sensor 207 fixedly connected to its telescopic end. Each pressure sensor 207 has a threaded fixing bracket 208 fixedly connected to its bottom surface. Each threaded fixing bracket 208 has a threaded pressure head 209 threadedly connected inside. A rotary motor 210 is fixedly connected to the inner wall of the power supply device 203. The power output end of the rotary motor 210 is fixedly connected to the upper surface of the loading tray 211. Several identical infrared ranging sensors 204 are fixedly connected to the bottom surface of the loading tray 211.

[0031] Please refer to this carefully. Figure 1 , Figure 5 and Figure 6Below the pressing mechanism 2, a clamping mechanism 3 is provided. The clamping mechanism 3 includes a support base 301. A connecting plate 303 is fixedly connected to the upper surface of the support base 301. A rotating shaft 308 is rotatably connected to the inner wall of the connecting plate 303. A connecting seat 307 is fixedly connected to the top of the rotating shaft 308. A clamping base 305 is provided above the connecting plate 303. Two sets of clamping blocks 304 are slidably connected inside the clamping base 305. A clamping plate 306 is movably hinged to the bottom surface of each clamping block 304. The outer surface of each clamping plate 306 is rotatably connected to the inner wall of the connecting seat 307. A connecting frame 309 is fixedly connected to the bottom surface of the two clamping blocks 304. Two electric push rods 310 are fixedly connected to the outer surfaces of the two connecting frames 309. A clamping seat 302 is provided above the support base 301. The outer surface of each clamping block 304 is in contact with the outer surface of the clamping seat 302.

[0032] Please refer to this carefully. Figure 7 and Figure 9 Each infrared ranging sensor 204 has a reinforcing ring 7 fixedly connected to its outer surface, and the top of each reinforcing ring 7 is fixedly connected to the bottom surface of the loading tray 211.

[0033] Please refer to this carefully. Figure 1 The controller body 4 is fixedly connected to the left side of the support base 301, and the fixing frame 5 is fixedly connected to the outer surface of the controller body 4. The right side of the fixing frame 5 is fixedly connected to the left side of the support base 301.

[0034] Please refer to this carefully. Figure 1 A fixing ring 6 is fixedly connected to the outer surface of the sliding rod 205. The bottom end of the fixing ring 6 is fixedly connected to the upper surface of the fixing base 201. The controller body 4 is connected to the power supply device 203, the telescopic rod 206, and the pressure sensor 207 via wires. The controller consists of two parts: hardware and software. The hardware mainly includes a central processing unit (CPU) for calculation, input / output (I / O) interfaces for connecting sensors and actuators, a memory for storing programs and data, as well as a power supply and communication module. The software includes control algorithm programs, a real-time operating system (RTOS), and a human-machine interface, all working together to ensure accurate and efficient system control. Applied to fields such as industrial automation, smart homes, and automotive electronics, a controller is a core device that regulates system operation by processing input signals in real time and generating control commands. Its working principle can be summarized as follows: First, it collects signals from sensors or external inputs, such as temperature and speed, and compares them with preset target values ​​to calculate the deviation; then, it uses built-in algorithms such as PID control and logical judgment to analyze the deviation and generate adjustment commands; finally, it drives actuators such as motors and valves through the output interface to adjust the system state, while continuously monitoring the effect through closed-loop feedback to achieve dynamic stability. The controller can control the electrical components of this technical solution.

[0035] When using this utility model: When using this device to test the hardness of cylindrical steel, the operator places the cylindrical material on the upper surface of the clamping base 305, and then uses the controller body 4 to control the electric push rod 310 to extend and retract. The extension and retraction of the electric push rod 310 causes the connecting frame 309 to extend and retract. The extension and retraction of the connecting frame 309 in turn causes the clamping block 304 to slide along the inside of the clamping base 305 under the action of the movable hinge of the clamping plate 306, so as to achieve the clamping of the cylindrical steel by the clamping block 304.

[0036] The threaded fixing bracket 208 has different types of threaded pressure heads 209 connected inside depending on the material. The operator selects the appropriate type of threaded pressure head 209 based on the steel material and positions it vertically above the clamping seat 302. The controller body 4 controls the rotary motor 210 to operate the device. The controller body 4 precisely controls the rotation angle of the rotary motor 210 according to the material of the cylindrical steel. The threaded pressure head 209 is precisely positioned above the clamping seat 302. Then, the operator uses the controller body 4 to control the extension and retraction of the telescopic rod 206, causing the pressure sensor 207, threaded fixing bracket 208, and threaded pressure head 209 to move downwards. The threaded pressure head 209 contacts the surface of the clamping seat 302 and applies downward force, causing the threaded pressure head 209 to press against the clamping seat 302, creating a downward concave surface. The operator then uses the controller body 4 to control the rotary motor 210, which drives the loading tray 211, telescopic rod 206, pressure sensor 207, threaded fixing bracket 208, and threaded pressure head 209. The hardness pressing structure, composed of the threaded indenter 209, rotates. When one of the infrared distance sensors 204 moves precisely above the previously pressed concave surface, the rotary motor 210 stops working. Then, the controller body 4 controls the infrared distance sensor 204 to work. The infrared emitter inside the infrared distance sensor 204 continuously emits infrared signals towards the inner wall of the concave surface. The infrared signals are reflected by the concave surface, and the distance between the concave surface and the infrared distance sensor 204 is accurately measured after reflection. The difference between this distance and the original distance before the concave surface was pressed is the depth of the concave surface pressing. Then, the operator can accurately measure the hardness of the steel by using the pressing depth, the diameter of the threaded indenter 209, and the reading of the pressure sensor 207. This device can fix different types of round steel and can select the appropriate threaded indenter 209 according to the different steel materials, thereby improving the applicability and working efficiency of the device.

[0037] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A hardness testing device for steel, comprising a base (1), characterized in that: A pressing mechanism (2) is provided above the base (1); the pressing mechanism (2) includes a fixed base (201), the bottom surface of the fixed base (201) is fixedly connected to the upper surface of the base (1), a slide rod (205) is fixedly connected to the upper surface of the fixed base (201), a movable base (202) is slidably connected to the outer surface of the slide rod (205), a power supply device (203) is fixedly connected to the inner wall of the slide rod (205), a loading tray (211) is fixedly connected to the bottom surface of the power supply device (203), and two sets of telescopic rods (202) are fixedly connected to the bottom surface of the loading tray (211). 6) Each telescopic rod (206) has a pressure sensor (207) fixedly connected to its telescopic end. Each pressure sensor (207) has a threaded fixing bracket (208) fixedly connected to its bottom surface. Each threaded fixing bracket (208) has a threaded pressure head (209) threadedly connected inside. The inner wall of the power supply device (203) has a rotary motor (210) fixedly connected. The power output end of the rotary motor (210) is fixedly connected to the upper surface of the loading tray (211). Several identical infrared ranging sensors (204) are fixedly connected to the bottom surface of the loading tray (211).

2. The hardness testing equipment for steel according to claim 1, characterized in that: Below the pressing mechanism (2) is a clamping mechanism (3), which includes a support base (301). A connecting plate (303) is fixedly connected to the upper surface of the support base (301). A rotating shaft (308) is rotatably connected to the inner wall of the connecting plate (303). A connecting seat (307) is fixedly connected to the top of the rotating shaft (308). A clamping base (305) is provided above the connecting plate (303). Two sets of clamping blocks (304) are slidably connected inside the clamping base (305). Each clamping block... Each of the holding blocks (304) has a clamping plate (306) hinged to its bottom surface. The outer surface of each clamping plate (306) is rotatably connected to the inner wall of the connecting seat (307). The bottom surfaces of the two clamping blocks (304) are fixedly connected to a connecting frame (309). The outer surfaces of the two connecting frames (309) are fixedly connected to two electric push rods (310). A clamping seat (302) is provided above the support seat (301). The outer surface of each clamping block (304) is in contact with the outer surface of the clamping seat (302).

3. The hardness testing equipment for steel according to claim 1, characterized in that: Each of the infrared ranging sensors (204) has a reinforcing ring (7) fixedly connected to its outer surface, and the top of each reinforcing ring (7) is fixedly connected to the bottom surface of the loading tray (211).

4. The hardness testing equipment for steel according to claim 2, characterized in that: The left side of the support base (301) is fixedly connected to the controller body (4), and the outer surface of the controller body (4) is fixedly connected to the fixing frame (5). The right side of the fixing frame (5) is fixedly connected to the left side of the support base (301).

5. The hardness testing equipment for steel according to claim 1, characterized in that: A fixing ring (6) is fixedly connected to the outer surface of the slide rod (205), and the bottom end of the fixing ring (6) is fixedly connected to the upper surface of the fixing seat (201).

6. The hardness testing equipment for steel according to claim 4, characterized in that: The controller body (4) is connected to the power supply equipment (203), the telescopic rod (206) and the pressure sensor (207) by wires.

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