Strength detection device for laminated steel plate

Abstract

The utility model relates to the technical field of strength detection devices, and discloses a strength detection device for a press-fit steel plate, which comprises a base shell, an L-shaped plate fixedly mounted on one side of the upper surface of the base shell and a hydraulic push rod mounted at the top of the L-shaped plate, and an extrusion rod is fixedly mounted at the output end of the hydraulic push rod. A pressure sensor is fixedly mounted at the bottom contact end of the extrusion rod through a formed mounting groove, strip-shaped partition plates which are symmetrically arranged are fixed to the upper surface of the base shell, according to the strength detection device for the press-fit steel plate, the distance detected by the laser range finder is changed, and it is indicated that the press-fit steel plate is possibly in a deformation state; the real-time monitoring can accurately measure the tiny deformation of the pressed steel plate in the pressing process, so that the detection precision is improved, the practicability and the flexibility of the device are enhanced, and the actual use requirement is met.

Description

Technical Field

[0001] This utility model relates to the technical field of strength testing devices, specifically a strength testing device for pressed steel plates. Background Technology

[0002] With the development of industrial manufacturing technology, steel plates are increasingly widely used as basic structural materials in various fields. To ensure the safety and reliability of steel plate structures, it is particularly important to test the strength of the steel plates after lamination.

[0003] Existing strength testing devices for pressed steel plates rely on hydraulic cylinders applying pressure to stainless steel plates via piston rods. The strength of the stainless steel plate is then detected by observing its deformation. However, during testing, it is difficult for operators to detect small deformations that occur during the pressing process, making the device inconvenient to use and reducing its practicality. Therefore, we propose a strength testing device for pressed steel plates to address these issues. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a strength testing device for pressed steel plates, which solves the problem that it is inconvenient for workers to better detect small deformations caused by pressed steel plates.

[0005] To achieve the above objectives, this utility model is implemented through the following technical solution: a strength testing device for pressed steel plates, comprising a base housing, an L-shaped plate fixedly installed on one side of the upper surface of the base housing, and a hydraulic push rod installed on the top of the L-shaped plate. An extrusion rod is fixedly installed at the output end of the hydraulic push rod, and a pressure sensor is fixedly installed at the bottom contact end of the extrusion rod through an opening mounting groove. A symmetrically arranged strip partition is fixed on the upper surface of the base housing.

[0006] The fixing mechanism is set on two sets of strip partitions and is used to press and fix the pressed steel plates.

[0007] The detection plate is set between two sets of strip partitions, and its upper surface is flush with the upper surface of the two sets of strip partitions.

[0008] The guide rods are arranged in four sets and are fixedly installed at the four corners of the lower surface of the detection plate;

[0009] There are four sets of connecting columns, which are fixed to the inner wall of the base housing and correspond one-to-one with multiple sets of guide rods. The outer surface of the guide rods is wound with springs.

[0010] A laser rangefinder is fixedly mounted on the lower surface of the detection plate;

[0011] The display screen is fixedly mounted on one side of the base housing.

[0012] Preferably, a connecting plate is fixedly installed on the surface of the guide rod, and the two ends of the spring are fixedly connected to the connecting plate and the connecting post respectively. The connecting post has a moving groove adapted to the guide rod, and the guide rod can slide at the moving groove of the connecting post.

[0013] Preferably, two sets of strip partitions are fixed with symmetrically arranged baffles on one side of each other. The baffles are flush with the upper surface of the strip partitions. The upper surface of the detection plate is provided with a slot that matches the baffle. The baffle is located at the slot of the detection plate. The spring is in a compressed state.

[0014] Preferably, a support side plate for supporting the top is fixedly installed inside the base housing.

[0015] Preferably, the fixing mechanism includes a clamping plate frame disposed on the strip partition, the clamping plate frame being threadedly connected to a screw rod through an open threaded hole, and the bottom end of the screw rod being rotatably mounted with an abutment plate through a bearing.

[0016] Preferably, the two ends of the strip partition are provided with L-shaped slots that are adapted to the two ends of the card holder, and the two ends of the card holder are engaged in the L-shaped slots provided in the strip partition.

[0017] Beneficial effects

[0018] This invention provides a strength testing device for pressed steel plates. Compared with the prior art, it has the following advantages:

[0019] The strength testing device for this pressed steel plate detects changes in distance via a laser rangefinder, indicating that the pressed steel plate may be in a deformed state. This real-time monitoring can accurately measure the minute deformations of the pressed steel plate during the pressing process, thereby improving the accuracy of the test, enhancing the practicality and flexibility of the device, and meeting the needs of actual use. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0021] Figure 2 This is a front view of the overall structure of this utility model;

[0022] Figure 3 This is an exploded view of the structure of the card holder and detection plate of this utility model.

[0023] In the diagram: 101, base housing; 102, L-shaped plate; 103, hydraulic push rod; 104, extrusion rod; 105, strip partition; 106, support side plate; 107, connecting column; 108, guide rod; 109, connecting plate; 110, spring; 111, baffle; 112, detection plate; 113, laser rangefinder; 2, fixing mechanism; 201, screw; 202, contact plate; 203, card holder; 204, L-shaped card slot. Detailed Implementation

[0024] 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.

[0025] like Figure 1-3 As shown:

[0026] A strength testing device for pressed steel plates includes a base housing 101, an L-shaped plate 102 fixedly installed on one side of the upper surface of the base housing 101, and a hydraulic push rod 103 installed on the top of the L-shaped plate 102. An extrusion rod 104 is fixedly installed at the output end of the hydraulic push rod 103. A pressure sensor is fixedly installed at the bottom contact end of the extrusion rod 104 through an opening mounting groove. A symmetrically arranged strip partition 105 is fixed on the upper surface of the base housing 101.

[0027] The fixing mechanism 2 is set on two sets of strip partitions 105 and is used to press and fix the pressed steel plate. The fixing mechanism 2 includes a clamping plate frame 203 set on the strip partition 105. The clamping plate frame 203 is threadedly connected to a screw 201 through a threaded hole. The bottom end of the screw 201 is rotatably mounted with an abutment plate 202 through a bearing.

[0028] The strip partition 105 has L-shaped slots 204 at both ends that are adapted to the two ends of the card holder 203, and the two ends of the card holder 203 are locked in the L-shaped slots 204 opened in the strip partition 105.

[0029] The detection plate 112 is set between two sets of strip partitions 105, and its upper surface is flush with the upper surface of the two sets of strip partitions 105.

[0030] The guide rods 108 are provided in four sets and are fixedly installed at the four corners of the lower surface of the detection plate 112;

[0031] Four sets of connecting posts 107 are provided and fixed to the inner side wall of the base housing 101, and each corresponds to a set of guide rods 108. A spring 110 is wound around the outer surface of the guide rod 108, and a connecting plate 109 is fixedly installed on the surface of the guide rod 108. The two ends of the spring 110 are fixedly connected to the connecting plate 109 and the connecting post 107 respectively. A moving groove adapted to the guide rod 108 is opened on the connecting post 107, and the guide rod 108 can slide at the moving groove opened on the connecting post 107.

[0032] A laser rangefinder 113 is fixedly mounted on the lower surface of the detection plate 112;

[0033] The display screen is fixedly installed on one side of the base housing 101.

[0034] In this implementation scheme: First, the pressed steel plate is placed on the upper surface of the two sets of strip partitions 105. The clamping frame 203 is designed to be clamped in the L-shaped slot 204. This design allows the clamping frame 203 to be flexibly disassembled, which is convenient for placing and adjusting the pressed steel plate.

[0035] After the pressed steel plate is placed in place, the L-shaped slot 204 consists of a horizontal slot and a top slot. The two ends of the plate holder 203 are inserted into the horizontal slot of the L-shaped slot 204 and aligned with the top slot. Then, the screw 201 is rotated to drive the contact plate 202 to move downward, so that the bottom of the contact plate 202 is tightly attached to the upper surface of the pressed steel plate and applies compression pressure to the pressed steel plate.

[0036] During the extrusion process, due to the reaction force, the clamping plate 203 moves upward and gets stuck in the top groove of the L-shaped clamping groove 204. This design allows the clamping plate 203 to be limited in the left and right directions, ensuring the clamping stability of the clamping plate 203. Through the setting of the fixing mechanism 2, the pressing steel plate can be effectively extruded and fixed, avoiding the movement of the steel plate during the strength test, thereby ensuring the accuracy of the test.

[0037] After the pressed steel plate is fixed, the hydraulic push rod 103 on the L-shaped plate 102 is activated. The hydraulic push rod 103 can drive the extrusion rod 104 to move downward, thereby applying pressure to the pressed steel plate. When the hydraulic push rod 103 drives the extrusion rod 104 to apply pressure to the pressed steel plate, the pressure sensor (not shown in the figure) will detect the applied force and convert this force signal into an electrical signal.

[0038] These electrical signals are then transmitted to a control unit (such as a microprocessor or PLC), where they are converted into digital form and processed into pressure intensity values ​​using a pre-programmed algorithm. The control unit then sends these pressure values ​​to a display screen (not shown in the diagram) so that the operator can visually read the strength data of the pressed steel plate.

[0039] When the pressed steel plate undergoes slight deformation, the steel plate will bulge slightly towards the bottom and squeeze the detection plate 112, causing the detection plate 112 to move downward. This action simultaneously causes the guide rod 108 to slide on the connecting column 107 and compress the spring 110. As the detection plate 112 moves downward, the laser rangefinder 113 emits a laser to the bottom of the inner wall of the base housing 101, measures the change in distance between it and the base housing 101, and records the data. The laser rangefinder 113 sends the measured distance value to the control unit, which then sends these data to the display screen for display. At the same time, the control unit will instruct the hydraulic push rod 103 to stop moving, thereby stopping the squeezing of the pressed steel plate.

[0040] If the distance detected by the laser rangefinder 113 changes, it indicates that the pressed steel plate may be in a deformed state. This real-time monitoring can accurately measure the minute deformation of the pressed steel plate during the pressing process, thereby improving the accuracy of the detection, enhancing the practicality and flexibility of the device, and meeting the needs of actual use.

[0041] The design of the detection plate 112 allows the detection plate 112 to move downwards at any point within the convex area formed by the compression of the pressed steel plate when the hydraulic push rod 103 applies pressure to the detection plate 112. This greatly improves the accuracy of the detection of the pressed steel plate.

[0042] It should be noted that the power equipment and oil supply equipment involved in this product are all powered by an external power source and supplied with oil by an external oil supply system. The solution also includes an electrical control cabinet, which is installed on the base housing 101. During use, each electrical device can be started and operated through the electrical control cabinet. The power connection method of each electrical device is an existing mature technology and is well known to those in the art, so it will not be described in detail here.

[0043] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.

[0044] Furthermore;

[0045] In an optional embodiment, two sets of strip partitions 105 are fixed with symmetrically arranged baffles 111 on one side close to each other. The baffles 111 are flush with the upper surface of the strip partitions 105. The upper surface of the detection plate 112 is provided with a slot that matches the baffles 111. The baffles 111 are located at the slot of the detection plate 112. The spring 110 is in a compressed state.

[0046] In this embodiment: when the spring 110 is in a compressed state, it will rebound, pushing the connecting plate 109 to move the guide rod 108 and the detection plate 112 upward until the detection plate 112 contacts the baffle 111. The baffle 111 limits the detection plate 112, ensuring that after the pressure on the detection plate 112 is released, the detection plate 112 can automatically reset, so that its upper surface is flush with the upper surface of the strip partition 105. This ensures the accuracy of subsequent deformation detection of the pressed steel plate.

[0047] Furthermore;

[0048] In an optional embodiment, a support side plate 106 supporting its top is fixedly installed inside the base housing 101.

[0049] In this embodiment, the support side plate 106 can support the top surface of the base housing 101, thus preventing deformation of the top of the base housing 101 when the hydraulic push rod 103 applies pressure to the detection plate 112.

[0050] The working principle and usage process of this utility model are as follows: First, the pressing steel plate is placed on the upper surface of the two sets of strip partitions 105. After the pressing steel plate is in place, the two ends of the clamping plate frame 203 are inserted into the horizontal grooves of the L-shaped clamping slot 204 and aligned with the top groove. Then, the screw 201 is rotated to drive the contact plate 202 to move downward, so that the bottom of the contact plate 202 is tightly attached to the upper surface of the pressing steel plate and applies pressure to the pressing steel plate. After the pressing steel plate is fixed, the hydraulic push rod 103 on the L-shaped plate 102 is activated. The hydraulic push rod 103 can drive the extrusion rod 104 to move downward, thereby applying pressure to the pressing steel plate. When the hydraulic push rod 103 drives the extrusion rod 104 to apply pressure to the pressing steel plate, the pressure sensor (not shown in the figure) will detect the applied force and convert this force signal into an electrical signal. These electrical signals are then transmitted to the control unit (e.g., microprocessor or PLC). The control unit processes these pressure values ​​and sends them to the display screen. (Not shown in the figure) This allows operators to visually read the strength data of the pressed steel plate. When the pressed steel plate undergoes slight deformation, it will bulge slightly towards the bottom and press against the detection plate 112, causing it to move downwards. The laser rangefinder 113 emits a laser to the bottom of the inner wall of the base housing 101, measures the change in distance between it and the base housing 101, and records the data. The laser rangefinder 113 sends the measured distance value to the control unit, which then sends this data to the display screen. Simultaneously, the control unit instructs the hydraulic push rod 103 to stop moving, thereby stopping the pressing of the pressed steel plate. If the distance detected by the laser rangefinder 113 changes, it indicates that the pressed steel plate may be deformed. This real-time monitoring can accurately measure the minute deformation of the pressed steel plate during the pressing process, thereby improving the detection accuracy, enhancing the practicality and flexibility of the device, and meeting the needs of actual use.

[0051] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A strength testing device for pressed steel plates, comprising a base housing (101), an L-shaped plate (102) fixedly installed on one side of the upper surface of the base housing (101), and a hydraulic push rod (103) installed on the top of the L-shaped plate (102), wherein a pressing rod (104) is fixedly installed at the output end of the hydraulic push rod (103), and a pressure sensor is fixedly installed at the bottom contact end of the pressing rod (104) through an opening mounting groove, characterized in that: The upper surface of the base housing (101) is fixed with symmetrically arranged strip partitions (105); it also includes: The fixing mechanism (2) is set on two sets of strip partitions (105) and is used to press and fix the pressed steel plate; The detection plate (112) is set between two sets of strip partitions (105), and its upper surface is flush with the upper surface of the two sets of strip partitions (105); The guide rod (108) is provided in four sets and is fixedly installed at the four corners of the lower surface of the detection plate (112); The connecting column (107) is provided in four sets and fixed to the inner side wall of the base housing (101), and corresponds to multiple sets of guide rods (108) respectively. The outer surface of the guide rod (108) is wound with a spring (110). A laser rangefinder (113) is fixedly installed on the lower surface of the detection plate (112); The display screen is fixedly installed on one side of the base housing (101).

2. The strength testing device for pressed steel plates according to claim 1, characterized in that: A connecting plate (109) is fixedly installed on the surface of the guide rod (108). The two ends of the spring (110) are fixedly connected to the connecting plate (109) and the connecting post (107) respectively. A moving groove adapted to the guide rod (108) is opened on the connecting post (107). The guide rod (108) can slide at the moving groove opened on the connecting post (107).

3. The strength testing device for pressed steel plates according to claim 2, characterized in that: Two sets of strip partitions (105) are fixed with symmetrically arranged baffles (111) on their sides. The baffles (111) are flush with the upper surface of the strip partitions (105). The upper surface of the detection plate (112) is provided with a slot that matches the baffles (111). The baffles (111) are located at the slot of the detection plate (112). The spring (110) is in a compressed state.

4. The strength testing device for pressed steel plates according to claim 1, characterized in that: The base housing (101) has a support side plate (106) fixedly installed inside to support its top.

5. The strength testing device for pressed steel plates according to claim 1, characterized in that: The fixing mechanism (2) includes a card holder (203) disposed on the strip partition (105). The card holder (203) is threadedly connected to a screw (201) through a threaded hole. The bottom end of the screw (201) is rotatably mounted with an abutment plate (202) through a bearing.

6. The strength testing device for pressed steel plates according to claim 5, characterized in that: The strip partition (105) has L-shaped slots (204) at both ends that are adapted to the two ends of the card holder (203), and the two ends of the card holder (203) are locked in the L-shaped slots (204) of the strip partition (105).

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