Strength detection device for high-hardness martensitic stainless steel band

Abstract

The invention discloses a strength detection device for a high-hardness martensitic stainless steel band, belongs to the technical field of strength detection, and provides the following scheme that the strength detection device comprises a strength detection mechanism, and an adjusting detection mechanism is arranged on the strength detection mechanism; according to the device, the single grabbing assembly is arranged, the multiple independent and controllable clamping assemblies are matched, the positions of the grabbing assemblies can be rapidly switched through the horizontal moving assembly, and when the grabbing assemblies are combined and connected with the guiding assembly, the multiple clamping assemblies can be controlled to synchronously achieve stretching detection of multiple sets of stainless steel bands; furthermore, multiple groups of control tests can be conveniently and quickly carried out, the tension strength difference of stainless steel bands in different batches or under different process parameters can be accurately compared, meanwhile, one group of clamping assembly can be independently controlled to be linked with the grabbing assembly, accurate tensile strength detection of a single group of stainless steel bands is completed, and the requirements of a single group of fine tests are met; and the clamping assemblies are provided with mechanical sensors for detecting stretching, so that stretching data of each group can be effectively collected.

Description

Technical Field

[0001] This invention relates to the field of strength testing technology, and in particular to a strength testing device for high-hardness martensitic stainless steel strip. Background Technology

[0002] High-hardness martensitic stainless steel strips, due to their excellent strength, wear resistance, and corrosion resistance, are widely used in high-end fields such as machinery manufacturing, automotive parts, and precision instruments. Their tensile strength is a core mechanical performance indicator that determines the reliability and service life of the product. If the tensile strength of the stainless steel strip does not meet the standard, it is prone to tensile fracture, plastic deformation, and other failures under stress conditions, leading to equipment damage or even safety accidents. Therefore, accurate tensile strength testing of high-hardness martensitic stainless steel strips is a crucial step in production quality control and application selection. While existing testing devices can collect tensile data using mechanical sensors, most are designed for single-group testing, unable to conduct multiple tensile tests on stainless steel strips simultaneously, resulting in low efficiency in comparative testing. If multiple comparative tests are required, multiple sets of equipment are needed, increasing costs and operational inconvenience. Furthermore, the recording devices have poor adaptability; different imaging modules need to be used for single-group and multi-group testing, making operation cumbersome and further increasing equipment investment. This fails to meet the core requirements of "accurate testing with multiple comparative tests, detailed analysis of single-group tests, and low-cost, high-efficiency operation" in the production process of high-hardness martensitic stainless steel strips.

[0003] To address the above problems, this invention proposes a strength testing device for high-hardness martensitic stainless steel strips. Summary of the Invention

[0004] The purpose of this invention is to address the shortcomings of existing testing devices, which are mostly designed for single-group testing and cannot simultaneously conduct tensile tests on multiple groups of stainless steel strips, resulting in low efficiency in control tests. If multiple control tests are required, multiple sets of equipment are needed, increasing costs and making operation inconvenient. At the same time, the shooting and recording devices have poor adaptability, requiring different shooting modules to be replaced for single-group and multi-group testing, which is cumbersome and further increases equipment investment. Therefore, this invention proposes a strength testing device for high-hardness martensitic stainless steel strips.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: A strength testing device for high-hardness martensitic stainless steel strip includes a strength testing mechanism, wherein an adjustment testing mechanism is provided on the strength testing mechanism. The strength testing mechanism includes a base, a fixed frame is fixedly connected to the base, a horizontal moving component is arranged above the fixed frame, a gripping component is arranged on the horizontal moving component, a guide component is arranged below the gripping component, and a plurality of clamping components are arranged on the guide component. The adjustment and detection mechanism includes a pressing component and an elastic component. The pressing component is connected to the gripping component. A telescopic component is provided below the pressing component. A detection probe and a first ball bearing are provided on the telescopic component.

[0006] Preferably, the bottom wall of the fixing frame is provided with multiple lower clamps, and the middle part of the fixing frame is provided with a crossbeam.

[0007] Preferably, the horizontal movement assembly includes a motor, which is mounted on a fixed frame. The output shaft of the motor is fixedly connected to a screw, which is rotatably mounted on the fixed frame via a bearing. A threaded seat is threadedly connected to the screw, and the threaded seat is slidably connected to a guide rod, which is fixedly connected to the fixed frame.

[0008] Preferably, the guide assembly includes a guide plate and two support rods, the two support rods are fixedly connected to the fixed frame, the guide plate is slidably connected to the two support rods, a mounting base is fixedly connected to the middle of the guide plate, and the mounting base has reserved openings at all four corners. Multiple sets of positioning rods are fixedly connected to the guide plate, and each set of positioning rods has four rods.

[0009] Preferably, the clamping assembly includes a fixed base, a hexagonal rod is fixedly connected to the lower part of the fixed base, the hexagonal rod passes through the crossbeam and is fixedly connected to the upper detection fixture, the fixed base overlaps the guide plate, a limiting part is provided above the fixed base, and four limiting holes are provided on both the limiting part and the fixed base, the limiting holes being adapted to the size of the positioning rod.

[0010] Preferably, the gripping assembly includes an electric push rod, which is mounted on a threaded seat. The bottom end of the electric push rod is fixedly connected to a mounting cavity, and four limiting rods are fixedly connected in the mounting cavity. The size of the limiting rods is adapted to the limiting opening. The mounting cavity can engage with the limiting part and the mounting clip, and the height of the limiting part is less than the distance from its top to the top wall of the mounting cavity.

[0011] Preferably, the pressing component includes a fixing block, which is fixedly connected to the mounting cavity. A telescopic rod is installed on the fixing block, and a pressing plate is installed at the fixed end of the telescopic rod. Both ends of the pressing plate are inclined surfaces. A slide rail is fixedly connected to the bottom end of the telescopic rod. The slide rail is slidably connected to a T-shaped rail, and the T-shaped rail is fixedly connected to a fixing frame.

[0012] Preferably, the telescopic assembly includes a telescopic frame and two sliders. The three ends of the telescopic frame are respectively hinged to a guide rail, a rail frame, and an adjusting plate. The detection probe and the first ball bearing are respectively fixed below the adjusting plate and the rail frame. The guide rail is fixedly connected to the slide rail. The adjusting plate has a slide groove. The two sliders are slidably connected in the slide groove and the guide rail, and the two sliders are hinged to the telescopic frame. A first spring is fixedly connected between the slider and the side wall of the slide groove.

[0013] Preferably, the elastic component includes a sliding sleeve mounted on a crossbeam. A sliding rod is slidably connected within the sliding sleeve. A second ball bearing is provided at the top of the sliding rod. The second ball bearing can be moved by the downward movement of the lower pressure plate. A connecting plate is fixedly connected to the bottom of the sliding rod. A second spring is fixedly connected between the connecting plate and the sliding sleeve. A protrusion is provided on one side of the connecting plate, and the protrusion has arc surfaces at both the top and bottom.

[0014] Preferably, the telescopic frame smoothly completes its unfolding action by moving the first ball through the protrusion and being squeezed by the arc surface.

[0015] Compared with the prior art, the present invention provides a strength testing device for high-hardness martensitic stainless steel strips, which has the following beneficial effects: 1. This high-hardness martensitic stainless steel strip strength testing device is equipped with a single gripping component and multiple independently controllable clamping components. The position of the gripping component can be quickly switched by the horizontal moving component. When the gripping component is connected with the guide component, multiple clamping components can be controlled to simultaneously perform tensile tests on multiple stainless steel strips. This facilitates the rapid conduct of multiple sets of comparative tests and accurately compares the tensile strength differences of stainless steel strips under different batches or process parameters. At the same time, a single clamping component can be controlled to link with the gripping component to complete the accurate tensile strength test of a single set of stainless steel strips, meeting the needs of single-set fine testing. Furthermore, each clamping component is equipped with a mechanical sensor for detecting tensile strength, which can effectively collect data for each set of tensile tests.

[0016] 2. This high-hardness martensitic stainless steel strip strength testing device is equipped with a set of adjustable detection probes. During a single tensile test, the gripping component applies pressure to the pressing component, causing the elastic component and the first ball bearing to disengage. The telescopic component then contracts, bringing the detection probe closer to the single-test area, clearly recording details such as deformation and fracture during the tensile process. During multiple simultaneous tensile tests, the gripping component moves the guide component upwards, causing the elastic component to reset and compress the first ball bearing with its curved surface. The telescopic component then expands, widening the detection range of the probes and achieving panoramic coverage of all tested stainless steel strips. This allows for complete capture of the tensile synchronicity and differences of multiple samples. This flexible switching method enables efficient and adaptable shooting, reducing equipment costs.

[0017] 3. This high-hardness martensitic stainless steel strip strength testing device, through the horizontal movement component and the gripping component, can realize multi-mode tensile testing. During the switching process of a single tensile test, by disengaging the gripping component from its locked state, it can effectively link the pressing component to drive the elastic component to displace the first ball bearing. At this time, the telescopic component automatically retracts, and the detection probe moves closer to the detection area. In the case of multiple tensile tests, the gripping component engages with the guide component. At this time, the elastic component resets and can work with the first ball bearing to unfold the telescopic component, expanding the detection probe range. Thus, multi-mode tensile testing provides a clear adaptation scenario for adaptive shooting. In different test modes, the system can automatically adjust the position and detection range of the detection probe according to actual needs, ensuring that clear and comprehensive image data can be obtained regardless of the test scenario. This high degree of flexibility and adaptability makes the entire testing operation no longer limited to fixed modes and scenarios, and can be flexibly adjusted according to different test needs and actual conditions. Attached Figure Description

[0018] Figure 1 This is a perspective view of a strength testing device for high-hardness martensitic stainless steel strip proposed in this invention. Figure 2 This is a perspective view of the strength testing mechanism of a strength testing device for high-hardness martensitic stainless steel strip proposed in this invention. Figure 3 This is a perspective view of the mounting frame for a strength testing device for high-hardness martensitic stainless steel strip proposed in this invention. Figure 4 This is a perspective view of the clamping assembly of a strength testing device for high-hardness martensitic stainless steel strip proposed in this invention. Figure 5 This is a perspective view of the clamping assembly and guide plate separated in a strength testing device for high-hardness martensitic stainless steel strip proposed in this invention. Figure 6 This is a perspective view of the telescopic component of a strength testing device for high-hardness martensitic stainless steel strip proposed in this invention. Figure 7 This is a perspective view of the connection between the gripping component and the pressing component of a strength testing device for high-hardness martensitic stainless steel strip proposed in this invention. Figure 8 This is a perspective view of the telescopic frame of a strength testing device for high-hardness martensitic stainless steel strip proposed in this invention. Figure 9 This is a perspective view of the elastic component of a strength testing device for high-hardness martensitic stainless steel strip proposed in this invention.

[0019] In the diagram: 100, Strength testing mechanism; 101, Fixing frame; 102, Horizontal movement assembly; 1021, Motor; 1022, Screw; 1023, Threaded seat; 1024, Guide rod; 103, Base; 104, Lower clamp; 105, Gripping assembly; 1051, Electric push rod; 1052, Mounting cavity; 1053, Limiting rod; 106, Clamping assembly; 1061, Limiting part; 1062, Limiting port; 1063, Fixing seat; 1064, Hexagonal rod; 1065, Upper testing clamp; 107, Guide assembly; 1071, Guide plate; 1072, Mounting seat; 1073, Positioning rod; 1074, Support. 200. Support rod; 201. Adjustment and detection mechanism; 201. Telescopic assembly; 2011. Telescopic frame; 2012. Slider; 2013. Adjustment plate; 2014. Rail frame; 2015. First spring; 2016. Slide groove; 2017. Guide rail; 202. Detection probe; 203. Pressing assembly; 2031. Fixing block; 2032. Telescopic rod; 2033. Slide rail; 2034. Pressing plate; 204. First ball bearing; 205. Elastic assembly; 2051. Connecting plate; 2052. Sliding sleeve; 2053. Protrusion; 2054. Second spring; 2055. Slide rod; 2056. Second ball bearing; 206. T-shaped rail. Detailed Implementation

[0020] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0021] In the description of this invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention 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 invention.

[0022] Example 1: Refer to Figures 1-7 A strength testing device for high-hardness martensitic stainless steel strip includes a strength testing mechanism 100, and an adjustment testing mechanism 200 is provided on the strength testing mechanism 100. The strength testing mechanism 100 includes a base 103, on which a fixed frame 101 is fixedly connected. Multiple lower clamps 104 are provided on the bottom wall of the fixed frame 101. The upper testing clamp 1065, in conjunction with the lower clamps 104, can fix both ends of the stainless steel strip, ensuring smooth tensile testing. A crossbeam is provided in the middle of the fixed frame 101, which supports the guide plate 1071, preventing the clamping assembly 106 from falling off. A horizontal moving assembly 102 is provided above the fixed frame 101. The horizontal moving assembly 102 includes a motor 1021, which is mounted on the fixed frame 101. The output shaft of the motor 1021 is fixedly connected to a screw 1022, which is rotatably mounted on the fixed frame 101 via bearings. On the frame 101, a threaded seat 1023 is threadedly connected to the screw 1022. Through the threaded transmission between the screw 1022 and the threaded seat 1023, the position of the gripping assembly 105 can be adjusted, facilitating the switching between single or multiple clamping assemblies 106 for tensile testing. The threaded seat 1023 is slidably connected to the guide rod 1024, which guides the threaded seat 1023 to ensure smooth movement. The guide rod 1024 is fixedly connected to the fixed frame 101. A gripping assembly 105 is mounted on the horizontal moving assembly 102. A guide assembly 107 is located below the gripping assembly 105. The guide assembly 107 includes a guide plate 1071 and two support rods 1074, which are fixedly connected to the fixed frame 101. On the fixed frame 101, a guide plate 1071 is slidably connected to two support rods 1074. The guide plate 1071 can slide smoothly on the support rods 1074, thereby ensuring the smooth up and down movement of the clamping assembly 106. A mounting base 1072 is fixedly connected to the middle of the guide plate 1071. The mounting base 1072 has reserved openings at all four corners. Multiple sets of positioning rods 1073 are fixedly connected to the guide plate 1071, with four positioning rods in each set. Multiple clamping assemblies 106 are provided on the guide assembly 107. The clamping assembly 106 includes a fixed base 1063. A hexagonal rod 1064 is fixedly connected to the bottom of the fixed base 1063. The hexagonal rod 1064 slides on the crossbeam, thereby facilitating the tensile testing of the stainless steel strip. Meanwhile, the polygonal structure of the hexagonal rod 1064 can prevent the limiting part 1061 from misaligning with the mounting cavity 1052 due to the rotation of the hexagonal rod 1064. The hexagonal rod 1064 passes through the crossbeam and is fixedly connected to the upper detection fixture 1065. The upper detection fixture 1065 is equipped with a mechanical sensor, which can effectively detect tensile data. The fixed seat 1063 overlaps on the guide plate 1071. The limiting part 1061 is provided above the fixed seat 1063. The limiting part 1061 and the fixed seat 1063 are both provided with four limiting ports 1062. The size of the limiting ports 1062 is adapted to the positioning rod 1073. The positioning rod 1073 is engaged with the limiting ports 1062 to ensure the stability of the clamping assembly 106. The adjustment and detection mechanism 200 includes a pressing component 203 and an elastic component 205. The pressing component 203 includes a fixed block 2031, which is fixedly connected to the mounting cavity 1052. A telescopic rod 2032 is installed on the fixed block 2031. The telescopic rod 2032 allows the gripping component 105 to move smoothly up and down. A pressing plate 2034 is installed at the fixed end of the telescopic rod 2032. Both ends of the pressing plate 2034 are inclined surfaces. By setting both ends of the pressing plate 2034 as inclined surfaces, the pressing plate 2034 passes through the second... The ball bearing 2056 can press down on the elastic component 205 via the inclined surface, thereby misaligning the protrusion 2053 with the first ball bearing 204 to prevent the telescopic component 201 from extending or retracting during translational movement. A slide rail 2033 is fixedly connected to the bottom end of the telescopic rod 2032, and the slide rail 2033 is slidably connected to the T-shaped rail 206. The smooth sliding of the slide rail 2033 on the T-shaped rail 206 allows the telescopic component 201 to maintain stable translational operation. The T-shaped rail 206 is fixedly connected to the fixed frame 101. The pressing component 203 is connected to the gripping component 105. The gripping assembly 105 includes an electric push rod 1051, which is mounted on a threaded seat 1023. A mounting cavity 1052 is fixedly connected to the bottom end of the electric push rod 1051. Four limiting rods 1053 are fixedly connected to the mounting cavity 1052. The size of the limiting rods 1053 is adapted to the limiting opening 1062. By engaging the limiting rods 1053 with the limiting opening 1062 or a pre-reserved opening, a stable connection can be ensured between the mounting cavity 1052, the limiting part 1061, and the mounting seat 1072. The mounting cavity 1052 can engage with the limiting part... 1061 and the mounting clip are engaged. The height of the limiting part 1061 is less than the distance from its top to the top wall of the mounting cavity 1052. By limiting the height of the limiting part 1061 to the distance from its top to the mounting cavity 1052, the mounting cavity 1052 has sufficient room for movement, so that the limiting rod 1053 can be smoothly disengaged from the limiting port 1062 and the reserved port, ensuring that the gripping component 105 can be smoothly adjusted for translation. A telescopic component 201 is provided below the pressing component 203. A detection probe 202 and a first ball bearing 204 are provided on the telescopic component 201.

[0023] In this embodiment: by equipping a single gripping component 105 and multiple independently controllable clamping components 106, the position of the gripping component 105 can be quickly switched by the horizontal moving component 102. When the gripping component 105 is combined and connected with the guide component 107, multiple clamping components 106 can be controlled to simultaneously perform tensile testing on multiple stainless steel strips, thereby facilitating the rapid conduct of multiple sets of comparative tests and accurately comparing the tensile strength differences of stainless steel strips under different batches or different process parameters. At the same time, when the mounting cavity 1052 switches and engages with the limiting part 1061, a single clamping component 106 can be controlled to link with the gripping component 105 to complete the accurate tensile strength test of a single set of stainless steel strips, meeting the requirements of single-set fine testing. Moreover, each clamping component 106 is equipped with a mechanical sensor for detecting tensile strength, which can effectively collect data for each set of tensile tests.

[0024] Example 2: Refer to Figures 8-9 A strength testing device for high-hardness martensitic stainless steel strip includes a telescopic assembly 201. The telescopic assembly 201 includes a telescopic frame 2011 and two sliders 2012. The three ends of the telescopic frame 2011 are respectively hinged to a guide rail 2017, a rail frame 2014, and an adjusting plate 2013. A detection probe 202 and a first ball bearing 204 are respectively fixed below the adjusting plate 2013 and the rail frame 2014. The guide rail 2017 is fixedly connected to a slide rail 2033. A slide groove 2016 is provided on the adjusting plate 2013. Two sliders 2012 are slidably connected in the slide groove 2016 and the guide rail 2017 respectively. The sliders 2012 slide smoothly in the slide groove 2016, thereby enabling the telescopic frame 2011 to extend and retract smoothly. The two sliders 2012 are hinged to the telescopic frame 2011. A first spring 2015 is fixedly connected between the sliders 2012 and the side wall of the slide groove 2016. The first spring 2015 can drive the telescopic frame 2011 to retract and reset through the sliders 2012, thereby reducing the distance between the detection probe 202 and the detection area. The elastic component 205 includes a sliding sleeve 2052, which is mounted on a crossbeam. A sliding rod 2055 is slidably connected within the sliding sleeve 2052. A second ball bearing 2056 is located at the top of the sliding rod 2055. The downward movement of the pressure plate 2034 presses down the second ball bearing 2056, causing the connecting plate 2051 to displace the protrusion 2053 from the first ball bearing 204. At this time, the first spring 2015 can smoothly drive the telescopic frame 2011 to complete the retraction action. The bottom end of the sliding rod 2055 is fixedly connected to the connecting plate 2051. A second spring 2054 is fixedly connected between the connecting plate 2051 and the sliding sleeve 2052. The elastic force of the second spring 2054 is greater than that of the first spring 2015, so that the second spring 2054 can be reset by the connecting plate 2051, which can drive the protrusion 2053 to be reset. This allows the arc surface of the protrusion 2053 to smoothly press the first ball 204 to move, thereby driving the telescopic frame 2011 to automatically unfold. This ensures that the detection probe 202 can perform panoramic monitoring of multiple detection areas. The connecting plate 2051 has a protrusion 2053 on one side, and the top and bottom of the protrusion 2053 are arc surfaces. As the first ball 204 moves, it passes through the protrusion 2053 and is pressed by the arc surface, allowing the telescopic frame 2011 to smoothly complete the unfolding action.

[0025] In this embodiment: By equipping a set of adjustable detection probes 202, when performing a single tensile test, the gripping component 105 applies pressure to the pressing component 203. At this time, the protrusion 2053 of the elastic component 205 and the first ball 204 are misaligned. The first spring 2015 drives the slider 2012 to move, and the slider 2012 drives the telescopic frame 2011 to retract, so that the detection probe 202 approaches the single detection area, thereby clearly recording details such as deformation and fracture during the tensile process. When performing multiple synchronous tensile tests, the gripping component 105 drives the guide component 107 to move upward a certain distance. At this time, the elastic component 205 resets and squeezes the first ball 204 through the arc surface. At this time, the telescopic frame 2011 unfolds to expand the detection range of the detection probe 202, realizing panoramic coverage of all tested stainless steel strips and fully capturing the tensile synchronicity and differences of multiple samples. This method can be flexibly switched to achieve efficient adaptation and shooting, reducing equipment costs.

[0026] Example 3: Reference Figures 1-4 and Figure 6 A strength testing device for high-hardness martensitic stainless steel strip includes a strength testing mechanism 100. The strength testing mechanism 100 includes a base 103, a fixed frame 101 fixedly connected to the base 103, a horizontal moving component 102 arranged above the fixed frame 101, a gripping component 105 arranged on the horizontal moving component 102, a guide component 107 arranged below the gripping component 105, and a plurality of clamping components 106 arranged on the guide component 107. The adjustment and detection mechanism 200 includes a pressing component 203 and an elastic component 205. The pressing component 203 is connected to the gripping component 105. A telescopic component 201 is provided below the pressing component 203. A detection probe 202 and a first ball bearing 204 are provided on the telescopic component 201.

[0027] In this embodiment, the horizontal moving component 102, in conjunction with the gripping component 105, enables multi-mode tensile testing. During the switching process of a single tensile test, the gripping component 105 disengages from its engaged state, effectively linking the pressing component 203 to cause the elastic component 205 to disengage from the first ball bearing 204. At this time, the telescopic component 201 automatically retracts, and the detection probe 202 approaches the detection area. During multiple tensile tests, the gripping component 105 engages with the guide component 107. At this time, the elastic component 205 resets and, in conjunction with the first ball bearing 204, unfolds the telescopic component 201, expanding the range of the detection probe 202. Thus, multi-mode tensile testing provides a clear adaptation scenario for adaptive shooting. In different test modes, the system can automatically adjust the position and detection range of the detection probe 202 according to actual needs, ensuring that clear and comprehensive image data can be obtained regardless of the test scenario. This high degree of flexibility and adaptability means that the entire testing operation is no longer limited to fixed modes and scenarios, and can be flexibly adjusted according to different test requirements and actual conditions.

[0028] Working principle: When a single tensile test is required, the two ends of the stainless steel strip are fixed by the upper testing fixture 1065 and the lower fixture 104. The electric push rod 1051 extends, and the mounting cavity 1052 drives the limiting rod 1053 to disengage from the reserved opening. At the same time, the mounting cavity 1052 drives the fixed block 2031 and the fixed end of the telescopic rod 2032 to move downward, so that the lower pressure plate 2034 presses down on the second ball 2056. The second ball 2056 drives the slide rod 2055 and the connecting plate 2051 to move downward. The connecting plate 2051 drives the protrusion 2053 to disengage from the first ball 204. At this time, the first spring 2015 drives the slider 2012 to reset, and the second slider 2012 drives the telescopic frame 2011 to retract, so that the testing probe 202 is close to the testing area. Then, the motor 1021 drives the screw 1022 to rotate, and the screw 1022 drives the thread seat 1023 to move. The seat 1023 drives the gripping component 105 and the guide component 107 to move, while the telescopic component 201 drives the detection probe 202 to move. When the mounting cavity 1052 corresponds to the limiting part 1061, the electric push rod 1051 drives the mounting cavity 1052 to reset upward, so that the limiting rod 1053 is inserted into the limiting port 1062. At the same time, the limiting part 1061 is engaged with the mounting cavity 1052. At this time, the electric push rod 1051 continues to retract, which can apply an upward force to the clamping component 106, thereby enabling tensile testing of the stainless steel strip. When performing single-group switching tensile testing, when the guide component 107 moves horizontally, one end of the lower pressure plate 2034 passes through the second ball 2056 in advance to move the lower pressure slide 2055, so that the protrusion 2053 is pre-displaced from the first ball 204 to prevent the telescopic component 201 from extending, thereby maintaining the stable movement of the detection probe 202. During multiple tensile tests, the horizontal moving component 102 drives the gripping component 105 to move, causing one end of the lower pressure plate 2034 to press the second ball 2056 downward. This causes the slide rod 2055 to deform the second spring 2054 via the connecting plate 2051. When the mounting cavity 1052 aligns with the mounting seat 1072, the electric push rod 1051 retracts, allowing the mounting cavity 1052 to engage with the mounting seat 1072. Simultaneously, the limiting rod 1053 engages with the reserved opening, causing the lower pressure plate 2034 to reset upward. At this time, the second spring 2054 drives the connecting plate 2051 to reset upward, causing the protrusion 2053 to press the first ball 204. This causes the rail frame 2014 to extend the telescopic frame 2011. At this time, the detection probe 202 can perform comprehensive monitoring of multiple detection areas. Subsequently, the gripping component 105 can drive multiple clamping components 106 to move upward via the control guide component 107, thereby achieving tensile testing of multiple stainless steel strips.

[0029] The above are merely preferred embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A strength detection device for a high-hardness martensitic stainless steel strip, comprising a strength detection mechanism (100), characterized by, The strength detection mechanism (100) is provided with an adjusting detection mechanism (200); The strength detection mechanism (100) comprises a base (103), the base (103) is fixedly connected with a fixing frame (101), a horizontal moving assembly (102) is arranged above the fixing frame (101), a grabbing assembly (105) is arranged on the horizontal moving assembly (102), a guide assembly (107) is arranged below the grabbing assembly (105), and a plurality of clamping assemblies (106) are arranged on the guide assembly (107). The adjusting detection mechanism (200) comprises a pressing-down assembly (203) and an elastic assembly (205), the pressing-down assembly (203) is connected with the grabbing assembly (105), a telescopic assembly (201) is arranged below the pressing-down assembly (203), and a detection probe (202) and a first ball (204) are arranged on the telescopic assembly (201).

2. The strength testing device for a high-hardness martensitic stainless steel strip according to claim 1, characterized by A plurality of lower clamps (104) are arranged on the bottom wall of the fixing frame (101), and a cross beam is arranged at the middle portion of the fixing frame (101).

3. The strength testing device for a high-hardness martensitic stainless steel strip according to claim 2, characterized by The horizontal moving assembly (102) comprises a motor (1021), the motor (1021) is installed on the fixing frame (101), a screw rod (1022) is fixedly connected with the output shaft of the motor (1021), the screw rod (1022) is rotatably installed on the fixing frame (101) through a bearing, a threaded seat (1023) is threadedly connected on the screw rod (1022), the threaded seat (1023) is slidably connected on a guide rod (1024), and the guide rod (1024) is fixedly connected on the fixing frame (101).

4. The strength testing device for a high-hardness martensitic stainless steel strip according to claim 3, characterized by The guide assembly (107) comprises a guide plate (1071) and two support rods (1074), the two support rods (1074) are fixedly connected on the fixing frame (101), the guide plate (1071) is slidably connected on the two support rods (1074), a mounting seat (1072) is fixedly connected at the middle portion of the guide plate (1071), the mounting seat (1072) is provided with a reserved opening at each corner, a plurality of groups of positioning rods (1073) are fixedly connected on the guide plate (1071), and the number of positioning rods (1073) in each group is four.

5. The strength testing device for a high-hardness martensitic stainless steel strip according to claim 4, characterized by The clamping assembly (106) comprises a fixed seat (1063), a hexagonal rod (1064) is fixedly connected below the fixed seat (1063), the hexagonal rod (1064) penetrates through the cross beam and is fixedly connected with an upper detection clamp (1065), the fixed seat (1063) is overlapped on the guide plate (1071), a limiting portion (1061) is arranged above the fixed seat (1063), four limiting openings (1062) are formed in the limiting portion (1061) and the fixed seat (1063), and the limiting openings (1062) are matched with the positioning rods (1073) in size.

6. The strength testing device for a high-hardness martensitic stainless steel strip according to claim 5, characterized by The grabbing assembly (105) comprises an electric push rod (1051), the electric push rod (1051) is installed on a threaded seat (1023), the bottom end of the electric push rod (1051) is fixedly connected with a mounting cavity (1052), four limiting rods (1053) are fixedly connected in the mounting cavity (1052), and the limiting rods (1053) are matched with limiting openings (1062) in size. The mounting cavity (1052) can be combined with the limiting part (1061) and the mounting clamping, and the height of the limiting part (1061) is less than the distance from the top of the limiting part (1061) to the top wall of the mounting cavity (1052).

7. The strength testing device for a high-hardness martensitic stainless steel strip according to claim 6, characterized by The lower pressing assembly (203) comprises a fixed block (2031), the fixed block (2031) is fixedly connected to the mounting cavity (1052), a telescopic rod (2032) is installed on the fixed block (2031), a fixed end of the telescopic rod (2032) is provided with a lower pressing plate (2034), both ends of the lower pressing plate (2034) are inclined surfaces, a bottom end of the telescopic rod (2032) is fixedly connected with a sliding rail (2033), the sliding rail (2033) is slidingly connected to a T-shaped rail (206), and the T-shaped rail (206) is fixedly connected to the fixed frame (101).

8. The strength testing device for a high-hardness martensitic stainless steel strip according to claim 7, characterized by The telescopic assembly (201) comprises a telescopic frame (2011) and two sliding blocks (2012), three ends of the telescopic frame (2011) are hingedly connected with a guide rail (2017), a rail frame (2014) and an adjusting plate (2013) respectively, one of the hinging shafts of the telescopic frame (2011) slides in the rail frame (2014), a detection probe (202) and a first ball (204) are fixed below the adjusting plate (2013) and the rail frame (2014) respectively, the guide rail (2017) is fixedly connected to the sliding rail (2033), the adjusting plate (2013) is provided with a sliding groove (2016), the two sliding blocks (2012) are slidingly connected to the sliding groove (2016) and the guide rail (2017) respectively, and the two sliding blocks (2012) are hingedly connected with the telescopic frame (2011); first springs (2015) are fixedly connected between the sliding blocks (2012) and the side walls of the sliding groove (2016).

9. The strength testing device for a high-hardness martensitic stainless steel strip according to claim 8, characterized by The elastic assembly (205) comprises a sliding sleeve (2052), the sliding sleeve (2052) is installed on a cross beam, a sliding rod (2055) is slidingly connected in the sliding sleeve (2052), a second ball (2056) is arranged at the top end of the sliding rod (2055), the second ball (2056) can be moved by downward movement of the lower pressing plate (2034), a connecting plate (2051) is fixedly connected to the bottom end of the sliding rod (2055), second springs (2054) are fixedly connected between the connecting plate (2051) and the sliding sleeve (2052), a convex part (2053) is arranged on one side of the connecting plate (2051), and arc surfaces are arranged above and below the convex part (2053).

10. The strength testing device for a high-hardness martensitic stainless steel strip according to claim 9, characterized by The first ball (204) is moved through the convex part (2053) to be pressed by the arc surface, so that the telescopic holder (2011) is smoothly unfolded.

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