An apparatus for testing the strength of a workpiece of an alloy material

Abstract

The utility model provides a kind of alloy material workpiece strength testing device, belong to bolt material detection technical field, including detection table, the top of detection table is fixed with load seat, and the top of load seat is embedded with pressure sensor, and load seat is provided with material position limiting assembly, the top of detection table is fixedly connected with slide rail, the lower pressing component located above load seat is slidably arranged on slide rail, and the side wall of lower pressing component is provided with self-adapting leveling assembly for adapting irregular contact surface, the top of detection table is provided with displacement sensor located at the side of load seat, signal collector, data processor, touch display screen are " control and analysis core", three are realized depth cooperation by hardware connection and software algorithm, and specific cooperation process is divided into four links of parameter setting stage, test execution stage, data processing stage, result display and storage stage, complete to cover the whole process of alloy material strength detection.

Description

Technical Field

[0001] This utility model relates to the field of bolt material testing technology, specifically to a strength testing device for alloy material workpieces. Background Technology

[0002] Bolts, as fasteners, play a vital role in various mechanical and building structures. Their strength grade is a key indicator for measuring bolt quality and safety, and this indicator is inextricably linked to the bolt's material. The material of a bolt directly affects its strength grade. Common bolt materials include carbon steel, alloy steel, and stainless steel. These materials differ significantly in terms of hardness, tensile strength, and yield strength. For bolts made of alloy materials, strength properties (such as compressive strength, tensile strength, and yield strength) are the core indicators for evaluating their safety and reliability during production and application.

[0003] The following problems were found in the relevant technology: it is widely used in high-load scenarios such as bridges, heavy machinery, and building structures. It can be seen that the application scenarios of alloy material bolts all require high strength. If the strength of the material itself is insufficient, it will cause accidents. In order to ensure that the raw material of the bolt, i.e. the alloy material, meets the strength of the application scenario, we propose an alloy material workpiece strength testing device.

[0004] It should be noted that the information disclosed in the background section above is only used to enhance the understanding of the background section of this application, and therefore may include prior art information that does not constitute prior art information known to those skilled in the art. Utility Model Content

[0005] This utility model aims to solve at least one of the technical problems existing in the prior art or related technologies. To address the problem of testing the alloy material strength of bolts in the prior art, this utility model provides a strength testing device for alloy material workpieces. This device employs a multi-dimensional testing structure combined with a material stability detection structure to improve the accuracy of material strength test results. The specific technical solution is as follows: A strength testing device for alloy material workpieces includes a testing platform, a material carrier fixed to the top of the testing platform, a pressure sensor embedded in the top of the material carrier, a material level limiting component on the material carrier, a slide rail fixed to the top of the testing platform, a pressing component slidably mounted on the slide rail above the material carrier, an adaptive leveling component for adapting to irregular contact surfaces on the side wall of the pressing component, and a multi-dimensional testing space formed between the adaptive leveling component and the material level limiting component. A displacement sensor located on the side of the material carrier is also mounted on the top of the testing platform.

[0006] In the above technical solution, the pressing component includes a displacement seat slidably disposed on the slide rail, and a power output component located above the material carrier is fixed to the side wall of the displacement seat.

[0007] The adaptive leveling component includes a base fixed to the side wall of the displacement seat. The inner cavity of the base has a transverse groove and longitudinal grooves that are symmetrically connected to the transverse groove. Self-adaptive moving parts are slidably arranged inside the transverse groove and the longitudinal groove. A support shaft is fixed in the middle of the inner cavity of the transverse groove and the longitudinal groove. Each self-adaptive moving part has a movable groove that fits onto the outside of the support shaft. The corners between the self-adaptive moving parts that are close to each other are set as inclined surfaces that fit together.

[0008] The outer wall of the slide rail is provided with a directional groove, and the displacement seat is fixed with a directional slider that is slidably disposed on the inner wall of the directional groove.

[0009] The material level limiting component includes a support base fixed to both sides of the material carrier, a movable base slidably disposed on the top of the material carrier and aligned with the support base, and a side limiting post extending inwards through the movable base and the support base, and a locking member extending to the surface of the limiting post threadedly connected to both the movable base and the support base, and a displacement component for adjusting the position of the movable base is provided on the material carrier.

[0010] The displacement assembly includes a side seat fixed to the top of the material carrier, and a threaded post that is threadedly connected to the movable seat is rotatably disposed between the side seat and the support seat.

[0011] A guide post is provided between the side seat and the support seat, penetrating through the movable seat.

[0012] The inner end of the limiting post is provided with an anti-slip and wear-resistant layer.

[0013] The output shaft of the power output component is detachably connected to a tension sensor via a flange.

[0014] Compared with the prior art, the beneficial effects of this utility model are: 1. Through the adaptive leveling components (transverse grooves, longitudinal grooves, and self-adaptive moving parts), it can automatically fit the surface of irregular workpieces, solving the problem of uneven contact surfaces. With the help of the material level limiting components (movable seat, threaded column, guide column), the limit can be adjusted in the X and Y axis directions to adapt to workpieces of different specifications and further ensure the stability of fixation.

[0015] II. Diffused silicon pressure sensors (accuracy ±0.3% FS) and laser displacement sensors (accuracy ±0.005mm) can collect pressure loads and deformations in real time and accurately. The sensors (pressure, tension, displacement) work in deep collaboration with the signal acquisition unit, data processor, and touch screen to cover the entire process of "parameter setting - test execution - data processing - result display and storage".

[0016] Third, the guide rail directional groove and directional slider work together, and the double guide rail symmetrical layout ensures stable movement of the pressing mechanism and avoids workpiece displacement. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of an alloy material workpiece strength testing device according to the present invention. Figure I ; Figure 2 This is a schematic diagram of the structure of an alloy material workpiece strength testing device according to the present invention. Figure II ; Figure 3 This is a schematic diagram of the displacement seat part of this utility model; Figure 4 This is a cross-sectional view of the base portion of this utility model; in, Figures 1 to 4 The correspondence between the reference numerals and component names in the attached drawings is as follows: 1-Detection table, 2-Carrier seat, 3-Pressure sensor, 4-Slide rail, 5-Displacement sensor, 6-Displacement seat, 7-Power output component, 8-Base, 9-Transverse groove, 10-Longitudinal groove, 11-Support shaft, 12-Self-adaptive moving component, 13-Moving groove, 14-Oriented groove, 15-Oriented slider, 16-Support seat, 17-Moving seat, 18-Limiting post, 19-Side seat, 20-Threaded post. Detailed Implementation

[0018] 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.

[0019] The following are specific implementation cases and appendices. Figure 1-4 The present invention will be further described below, but the present invention is not limited to these embodiments.

[0020] A strength testing device for alloy material workpieces includes a testing platform 1, which is welded from Q235 high-strength steel and measures 1200mm × 800mm × 150mm, with anti-vibration pads at the bottom. A material carrier 2 is fixed to the top of the testing platform 1, and a pressure sensor 3 is embedded in the top of the material carrier 2. A material level limiting component is also provided on the material carrier 2. The pressure sensor 3 is a diffused silicon pressure sensor, model PT124G-210, with a range of 0-50kN, an accuracy of ±0.3%FS, and an output of a 4-20mA standard current signal. It is embedded in a groove on the top of the material carrier 2, with its top flush with the workpiece contact surface, allowing for real-time acquisition of the pressure load borne by the workpiece.

[0021] A slide rail 4 is fixed to the top of the testing table 1. A pressing component is slidably mounted on the slide rail 4 above the material carrier 2. The side wall of the pressing component is equipped with an adaptive leveling component to adapt to irregular contact surfaces. The adaptive leveling component and the material level limiting component form a multi-dimensional testing space. A displacement sensor 5 is located on the side of the material carrier 2 on the top of the testing table 1. The displacement sensor 5 is a KEYENCE IL-600 laser displacement sensor with a range of 0-300mm and an accuracy of ±0.005mm. It is located on the side of the material carrier 2, 300mm from the center of the material carrier. The laser emitting end faces the workpiece or the connecting frame of the pressing component, and can detect the deformation of the workpiece or the movement distance of the pressing component in real time.

[0022] The pressing component includes a displacement seat 6 slidably mounted on the slide rail 4, with a power output component 7 fixed to the side wall of the displacement seat 6 above the material carrier 2. The slide rail 4 is an electric slide rail with a lead screw rotatably mounted inside. The displacement seat 6 is threadedly connected to the lead screw. A motor is mounted on the top of the slide rail 4 through a cover, and the output shaft of the motor is fixedly connected to one end of the lead screw. The two slide rails 4 are symmetrically fixed on the detection table 1 and located on both sides of the material carrier 2. The two displacement seats 6 are fixedly connected by a connecting bracket. The power output component 7 can be a hydraulic cylinder, which applies pressure to the alloy material fixed on the material carrier 2 through its output end.

[0023] It is worth noting that the adaptive leveling component includes a base 8 fixed to the side wall of the displacement seat 6. The inner cavity of the base 8 has a transverse groove 9, and the inner cavity of the base 8 also has symmetrically arranged longitudinal grooves 10 communicating with the transverse groove 9. Self-adaptive moving parts 12 are slidably disposed inside both the transverse groove 9 and the longitudinal groove 10. A support shaft 11 is fixed to the center of the inner cavity of both the transverse groove 9 and the longitudinal groove 10. Each self-adaptive moving part 12 has a movable groove 13 that fits onto the outside of the support shaft 11. The corners where the self-adaptive moving parts 12 are close together are designed as mutually fitting slopes. The two right angles on the lower sides of the transverse self-adaptive moving part 12 and the two right angles opposite the top of the two longitudinal self-adaptive moving parts 12 are chamfered, so that the slopes on the lower sides of the transverse self-adaptive moving part 12 fit against the slopes at the upper ends of the two longitudinal self-adaptive moving parts 12. The support shaft 11 limits the movement of the self-adaptive moving parts 12.

[0024] As the base 8 moves toward the alloy material along with the displacement seat 6, the two longitudinal self-adaptive moving parts 12 move freely and automatically according to the flatness of the alloy material surface. At the same time, the displacement distance of the two longitudinal self-adaptive moving parts 12 is adjusted by the transverse self-adaptive moving part 12, so that the longitudinal self-adaptive moving parts 12 can stably fit against the alloy material surface, ensuring the stability of the displacement seat 6 and avoiding the displacement of the alloy material position during the limiting process caused by uneven surface, thereby ensuring the accuracy of strength testing.

[0025] In addition, the outer wall of the slide rail 4 is provided with a directional groove 14, and a directional slider 15 is fixed on the displacement seat 6 and slidably disposed on the inner wall of the directional groove 14. A sleeve hole is opened longitudinally on the displacement seat 6, and the displacement seat 6 slides on the outer wall of the slide rail 4 through the sleeve hole, so that when the displacement seat 6 moves, it drives the directional slider 15 to slide against the inner wall of the directional groove 14. The directional groove 14 and the internal lead screw of the slide rail 4 are parallel to each other, which plays a role in stabilizing the guide.

[0026] Additionally, the material level limiting component includes support seats 16 fixed to both sides of the material carrier 2. A movable seat 17, aligned with the support seats 16, is slidably mounted on the top of the material carrier 2. Both the movable seat 17 and the support seats 16 have inwardly facing side limiting posts 18 threaded through them. Locking elements extending to the surface of the limiting posts 18 are threaded onto both the movable seat 17 and the support seats 16. The locking elements are bolts. The limiting posts 18 slide within the through holes of the support seats 16. The material carrier 2 is equipped with a displacement component for adjusting the position of the movable seat 17.

[0027] The alloy material to be tested is placed on top of the carrier seat 2. Then, the movable seat 17 is moved toward the alloy material by the displacement component. Then, the sliding limit post 18 inside the support seat 16 is pressed against the surface of the alloy material. After that, the locking part is turned to lock the alloy material laterally between the movable seat 17 and the support seat 16. By adjusting the X-axis and Y-axis displacement of the movable seat 17 in two directions, the limit is adapted to the alloy material. It can be used for alloy materials of different specifications.

[0028] Furthermore, the displacement assembly includes a side seat 19 fixed to the top of the material carrier 2, and a threaded post 20 that is threadedly connected to the movable seat 17 is rotatably disposed between the side seat 19 and the support seat 16. One end of the threaded post 20 extends out of the side seat 19 and is fixedly connected to the operating rod.

[0029] A guide post is provided between the side seat 19 and the support seat 16, penetrating the movable seat 17. The guide post, which is parallel to the threaded post 20, ensures the stability of the moving direction of the movable seat 17.

[0030] The inner end of the limiting post 18 is provided with an anti-slip and wear-resistant layer. The anti-slip and wear-resistant layer is made of silicon carbide coating material with a coating thickness of 0.1-0.3mm to ensure the stability of the alloy material testing process.

[0031] The output shaft of the power output unit 7 is detachably connected to a tension sensor via a flange. The signal acquisition unit connects to the pressure sensor 3, tension sensor, and displacement sensor 5 via a shielded cable (RVVP 2×0.5). The data processor communicates with the signal acquisition unit via RS485 and connects to the touchscreen display via an HDMI interface. It also has a built-in data storage unit (SD card, supporting up to 128GB) and a USB export interface. The tension sensor, displacement sensor 5, and pressure sensor 3 are the "sensing core" of the device, while the signal acquisition unit, data processor, and touchscreen display are the "control and analysis core." These three components achieve deep collaboration through hardware connections and software algorithms. The specific collaboration process is divided into four stages: parameter setting, test execution, data processing, and result display and storage, fully covering the entire process of alloy material strength testing.

[0032] The touch screen converts the settings into digital signals and transmits them to the data processor via the HDMI interface. The data processor verifies the parameters, and once the verification is successful, it generates control commands, which are sent to the controllers of the signal acquisition unit and the power output unit 7, respectively, to complete the pre-configuration before testing.

[0033] The working principle of an alloy material workpiece strength testing device is as follows: the operator places the alloy workpiece on the pressure sensor 3 of the material carrier 2, rotates the threaded column 20 of the material level limiting component, adjusts the position of the movable seat 17, so that the limiting columns 18 on both sides fit against the side wall of the workpiece, and tightens the locking part to fix it. The test is initiated via the touch screen. The data processor sends a "start loading" command to the controller of the power output component 7. The hydraulic cylinder slowly extends, driving the adaptive leveling component to move closer to the workpiece. When the self-adaptive moving part 12 of the adaptive leveling component contacts the workpiece surface, if the workpiece surface is not flat, the longitudinal self-adaptive moving part 12 slides along the longitudinal groove 10, and the transverse self-adaptive moving part 12 adjusts synchronously along the transverse groove 9. The adaptive leveling is achieved through inclined surface fitting, ensuring that the loading force is evenly transmitted to the workpiece. During this process, three sensors simultaneously collect data: Pressure sensor (3): The pressure load on the workpiece is converted into a 4-20mA current signal by the sensor, and the data is output once every 20ms (corresponding to a 50Hz sampling frequency); Displacement sensor (5): The laser beam irradiates the top of the workpiece or the adaptive leveling component, detects the compression deformation of the workpiece in real time, outputs a distance signal (unit mm), and samples synchronously with the pressure sensor; Tensile sensor: If the test is in compression mode, the tensile sensor is in an unloaded state and only outputs a reference signal in real time (used to monitor whether the sensor is working properly); if it is in tensile mode (such as testing the tensile strength of the workpiece, the two ends of the workpiece need to be fixed to the tensile sensor and the material carrier respectively), the tensile sensor will collect the tensile load signal borne by the workpiece. The signal acquisition unit receives analog signals from three sensors via shielded cables, converts them into 16-bit digital signals (high resolution, reducing signal interference), and packages the digital signals (including acquisition timestamp, sensor number, and data value) according to the sampling frequency set by the data processor, and transmits them to the data processor in real time via RS485 communication.

[0034] In the description of this utility model, it should be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "side", "top", "inner", "front", "center", "both ends", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0035] Furthermore, the terms "first," "second," "third," and "fourth" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first," "second," "third," or "fourth" may explicitly or implicitly include at least one of those features.

[0036] In this utility model, unless otherwise explicitly specified and limited, the terms "installation", "setting", "connection", "fixing", "screw connection", etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0037] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A strength testing device for alloy material workpieces, comprising a testing platform (1), characterized in that, The top of the testing platform (1) is fixed with a material carrier (2), and a pressure sensor (3) is embedded in the top of the material carrier (2). A material level limiting component is provided on the material carrier (2). A slide rail (4) is fixed to the top of the testing platform (1). A pressing component located above the material carrier (2) is slidably provided on the slide rail (4). An adaptive leveling component for adapting to irregular contact surfaces is provided on the side wall of the pressing component. A multi-dimensional test space is formed between the adaptive leveling component and the material level limiting component. A displacement sensor (5) located on the side of the material carrier (2) is provided on the top of the testing platform (1).

2. The alloy material workpiece strength testing device according to claim 1, characterized in that: The pressing component includes a displacement seat (6) slidably disposed on the slide rail (4), and a power output component (7) located above the material carrier (2) is fixed to the side wall of the displacement seat (6).

3. The alloy material workpiece strength testing device according to claim 2, characterized in that: The adaptive leveling component includes a base (8) fixed to the side wall of the displacement seat (6). The inner cavity of the base (8) is provided with a transverse groove (9), and the inner cavity of the base (8) is symmetrically provided with a longitudinal groove (10) connected to the transverse groove (9). A self-adaptive moving part (12) is slidably provided inside the transverse groove (9) and the longitudinal groove (10). A support shaft (11) is fixed in the middle of the inner cavity of the transverse groove (9) and the longitudinal groove (10). Each self-adaptive moving part (12) is provided with an active groove (13) sleeved on the outside of the support shaft (11). The corners of the self-adaptive moving parts (12) that are close to each other are provided with inclined surfaces that fit together.

4. The alloy material workpiece strength testing device according to claim 2, characterized in that: The outer wall of the slide rail (4) is provided with a directional groove (14), and the displacement seat (6) is fixed with a directional slider (15) that is slidably disposed on the inner wall of the directional groove (14).

5. The alloy material workpiece strength testing device according to claim 1, characterized in that: The material level limiting component includes a support base (16) fixed on both sides of the material carrier (2). The top of the material carrier (2) is slidably provided with a movable base (17) that is on the same straight line as the support base (16). Both the movable base (17) and the support base (16) are provided with side limiting posts (18) facing inward. Both the movable base (17) and the support base (16) are threadedly connected with locking members that extend to the surface of the limiting posts (18). The material carrier (2) is provided with a displacement component for adjusting the position of the movable base (17).

6. The alloy material workpiece strength testing device according to claim 5, characterized in that: The displacement assembly includes a side seat (19) fixed to the top of the material carrier (2), and a threaded post (20) that is threadedly connected to the movable seat (17) is rotatably provided between the side seat (19) and the support seat (16).

7. The alloy material workpiece strength testing device according to claim 6, characterized in that: A guide post is provided between the side seat (19) and the support seat (16) and passes through the movable seat (17).

8. The alloy material workpiece strength testing device according to claim 5, characterized in that: The inner end of the limiting post (18) is provided with an anti-slip and wear-resistant layer.

9. The alloy material workpiece strength testing device according to claim 2, characterized in that: The output shaft of the power output component (7) is detachably connected to a tension sensor via a flange.

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