A device for detecting the tensile resistance of a metal smelting rolled product

Abstract

The utility model relates to metal smelting calendered product detection technical field discloses a kind of tensile resistance detection devices of metal smelting calendered product, including detection table, the top of the detection table is provided with two groups of mirror image clamping components, the clamping component includes support seat, support plate fixed in the top of support seat and fixed plate fixed in the top of support plate side face;Servo motor is installed in the side of the detection table, and one group of clamping components is driven by servo motor and moves on detection table, when detecting the tensile resistance of metal smelting calendered product, the movable support seat can be positioned using positioning rod in movable position, so that multiple products can be accurately stretched to the specified position when detecting in turn, using this way, the state of product can be observed intuitively when stretching detection each time, it is simpler to implement, and it is beneficial to the quality of product for staff to judge in time.

Description

Technical Field

[0001] This utility model relates to the field of metal smelting and rolling product testing technology, specifically a device for testing the tensile strength of metal smelting and rolling products. Background Technology

[0002] Metal smelting and rolling products belong to the ferrous metal smelting and rolling processing industry, including processes such as ironmaking, steelmaking, and steel rolling. Product types cover pig iron, crude steel, pipes, structural components, and bars, and are widely used in industrial manufacturing. After production, metal smelting and rolling products often require tensile strength testing to ensure product quality.

[0003] A search revealed a tensile property testing mechanism for rolled metal products, publication number CN220289198U, which includes: "a testing table, a fixed clamp, a movable clamp, and reinforcing components. The two sides of the first and second table plates are connected by a first driving component. A movable clamp is slidably connected to the top surface of the first table plate, and a fixed clamp is fixed to the top surface of the second table plate. Both the fixed and movable clamps include a frame and a pressure component. The pressure component is connected inside the frame. Reinforcing components are fixed to both sides of the fixed and movable clamps. This invention adds reinforcing components, which, through the fixed and movable clamps, tightly clamp the top and bottom surfaces of both ends of the metal workpiece. The reinforcing components on both sides further tighten the clamps, enhancing the strength of the clamping and preventing the workpiece from easily falling off during tensile property testing, thus facilitating the testing process."

[0004] Based on our research on the aforementioned solutions, we found that these solutions have certain shortcomings when testing rolled metal products. In practice, the tensile length of the product is observed by sliding a marker rod on the scale groove of the first plate. This means that staff need to constantly observe the position of the marker rod and record the scale readings to facilitate subsequent judgment of the test results. However, when testing a large number of products, it is necessary to record the results after each test, making this testing method relatively cumbersome to implement. Furthermore, the test results are not intuitive enough, which is not conducive to staff making timely judgments on the quality of the products. Summary of the Invention

[0005] To overcome the shortcomings mentioned above, this utility model aims to provide a technical solution that can solve the above problems.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a tensile strength testing device for rolled metal products, comprising a testing platform, with two sets of mirror-image clamping assemblies on the top of the testing platform. Each clamping assembly includes a support base, a support plate fixed to the top of the support base, and a fixing plate fixed to the top side of the support plate. A servo motor is installed on one side of the testing platform, and one set of clamping assemblies moves on the testing platform driven by the servo motor. A fixing block is fixed to the top right side of the testing platform, and an adjusting screw is threadedly connected to the middle of the fixing block. One end of the adjusting screw is rotatably connected to an adjusting plate that is slidably connected to the top of the testing platform. Two positioning rods that are far apart from each other are fixed to the left side of the adjusting plate. A scale line is provided on the top of the testing platform near the adjusting plate, and a pointer that slides on the top of the testing platform and points to the scale line is fixed to the bottom front of the adjusting plate.

[0007] As a further embodiment of this utility model: a cylinder is installed at the center of the top of the fixing plate, the power output shaft of the cylinder extends through to the bottom of the fixing plate and is fixed with a clamping plate, and rubber gaskets are glued and fixed to the bottom of the clamping plate and the top of the support base.

[0008] As a further embodiment of this utility model: one support base is fixed on the top left side of the testing platform, and the bottom of the other support base is fixed with a movable block and sliders located on both sides of the movable block. The top of the testing platform is provided with a movable groove and a sliding groove. The movable block is placed in the movable groove, and the slider is placed in the sliding groove. The power output shaft of the servo motor is movably inserted into the movable groove and is connected to a lead screw. The lead screw and the movable block are threaded together.

[0009] As a further embodiment of this utility model: two limiting slide grooves are provided on the top right side of the detection platform, and limiting sliders are fixed on both sides of the bottom of the adjustment plate, with the limiting sliders placed in the limiting slide grooves.

[0010] As a further embodiment of this utility model: a pressure sensor is installed on the right side of the support base near the adjustment plate, and a PLC controller is installed on the front. The pressure sensor and the PLC controller are connected by a wire, and the PLC controller is connected to the servo motor by a wire.

[0011] As a further embodiment of this utility model: a trigger rod is fixed on the left side of the adjustment plate and at a position between the two positioning rods. The position of the trigger rod corresponds to the position of the pressure sensor. The length of the trigger rod is shorter than the length of the positioning rod. The position of the positioning rod corresponds to the position of the support base.

[0012] As a further embodiment of this utility model: the top of the testing platform is also fixed with a protective frame that covers the outside of the clamping assembly. The front of the protective frame is connected to a double door, which is made of transparent tempered glass. A notch is provided at the bottom right side of the protective frame to facilitate the insertion of the fixing block.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: I. In this application, through the designed testing platform, fixing block, adjusting plate, threaded adjusting rod, positioning rod, pointer and scale line, etc., when testing the tensile properties of metal smelting and rolling products, the positioning rod can be used to position the movable support seat, thereby ensuring that multiple products can be accurately stretched to the set specified position when tested in sequence. Using this method, the state of the product can be directly observed during each tensile test, which is simpler to implement and helps the staff to judge the quality of the product in a timely manner.

[0014] Second, in this application, since the position of the adjustment plate can be adjusted on the testing table, the position of the positioning rod can be adjusted in conjunction with the scale line to achieve the effect of moving further away from or closer to the support seat, which can facilitate tensile strength testing of products of different lengths.

[0015] Third, in this application, through the designed trigger rod, pressure sensor and PLC controller and other structures, when the movable clamping component stretches the product to the specified position, the servo motor can be automatically shut down, thereby avoiding the continuous operation of the servo motor and avoiding the servo motor from running idly due to the obstruction of the positioning rod, which would cause abnormal servo motor operation. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the testing station of this utility model; Figure 2 This is a three-dimensional structural diagram of the adjustment plate of this utility model; Figure 3 This is a three-dimensional structural diagram of the clamping component on the top right side of the testing platform of this utility model; Figure 4 This is a schematic diagram showing the positions of the movable groove, sliding groove, and limiting sliding groove of this utility model on the testing platform; Figure 5 This is a schematic diagram of the overall three-dimensional structure of this utility model.

[0017] The reference numerals and names in the figure are as follows: 1. Testing table; 101. Movable groove; 102. Slide groove; 103. Limiting slide groove; 2. Fixing block; 3. Adjusting plate; 301. Positioning rod; 302. Trigger rod; 303. Pointer; 304. Limiting slider; 4. Adjusting screw; 5. Servo motor; 501. Lead screw; 6. Clamping assembly; 601. Support base; 602. Support plate; 603. Fixing plate; 7. Scale line; 8. Pressure sensor; 9. PLC controller; 10. Cylinder; 12. Clamping plate; 13. Rubber gasket; 14. Movable block; 15. Slider; 16. Protective frame; 17. Double door. 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] Please see Figure 1-5 A tensile strength testing device for rolled metal products includes a testing platform 1. Two sets of mirror-image clamping assemblies 6 are mounted on the top of the testing platform 1. Each clamping assembly 6 includes a support base 601, a support plate 602 fixed to the top of the support base 601, and a fixing plate 603 fixed to the top side of the support plate 602. A servo motor 5 is mounted on one side of the testing platform 1, and one set of clamping assemblies 6 is driven by the servo motor 5 and moves on the testing platform 1. A fixing block 2 is fixed to the top right side of the testing platform 1, and an adjusting screw 4 is threadedly connected to the center of the fixing block 2 for adjusting the position of the adjusting screw 4. To ensure stability, a locking screw is threadedly connected to the top center of the fixed block 2. The bottom thread of the locking screw passes through the fixed block 2 and presses against the rod body of the adjusting screw 4, thereby ensuring the stability of the adjusting screw 4 and thus the stability of the adjusting plate 3. One end of the adjusting screw 4 is rotatably connected to the adjusting plate 3, which is slidably connected to the top of the testing platform 1. Two positioning rods 301 that are far apart are fixed on the left side of the adjusting plate 3. A scale line 7 is provided on the top of the testing platform 1 near the adjusting plate 3. A pointer 303 that slides on the top of the testing platform 1 and points to the scale line 7 is fixed on the bottom front of the adjusting plate 3.

[0020] Please see Figure 1 and Figure 3 In this embodiment, a cylinder 10 is installed at the center of the top of the fixing plate 603. The power output shaft of the cylinder 10 extends through to the bottom of the fixing plate 603 and is fixed with a clamping plate 12. Rubber gaskets 13 are glued to the bottom of the clamping plate 12 and the top of the support base 601.

[0021] Specifically, two limiting rods are also inserted through the top of the fixing plate 603 and located on both sides of the cylinder 10. The bottom of the limiting rods is fixed to both sides of the top of the clamping plate 12, which can improve the stability of the clamping plate 12 when the cylinder 10 drives the clamping plate 12 to move. Rubber pads 13 are provided at the bottom of the clamping plate 12 and the top of the support base 601, which can improve the stability after clamping the product.

[0022] Please see Figure 1 , Figure 3 and Figure 4 In this embodiment, one support base 601 is fixed on the top left side of the detection table 1, and the bottom of the other support base 601 is fixed with a movable block 14 and sliders 15 located on both sides of the movable block 14. The top of the detection table 1 is provided with a movable groove 101 and a sliding groove 102. The movable block 14 is placed in the movable groove 101, and the slider 15 is placed in the sliding groove 102. The power output shaft of the servo motor 5 is movably passed through the movable groove 101 and is connected to a lead screw 501. The lead screw 501 and the movable block 14 are threaded together.

[0023] Specifically, after the servo motor 5 is started, it can drive the lead screw 501 to rotate, thereby using the sliding of the movable block 14 in the movable groove 101 to drive the support seat 601 fixed to the movable block 14 to slide in the movable groove 101, thereby realizing the tensile test of the product. When the support seat 601 is moving, the sliding of the slider 15 in the slide groove 102 can also improve the stability and position guidance of the support seat 601 during movement.

[0024] Please see Figure 1 , Figure 2 and Figure 4 In this embodiment, two limiting slide grooves 103 are provided on the top right side of the detection table 1, and limiting sliders 304 are fixed on both sides of the bottom of the adjustment plate 3. The limiting sliders 304 are placed in the limiting slide grooves 103.

[0025] Specifically, the limiting slider 304 at the bottom of the adjusting plate 3 is slidably connected in the limiting groove 103, which can improve the stability and position guidance of the adjusting plate 3 during movement by utilizing the limiting and guiding function of the limiting groove 103.

[0026] Please see Figure 1 , Figure 2 and Figure 3In this embodiment, a pressure sensor 8 is installed on the right side of the support base 601 near the adjustment plate 3, and a PLC controller 9 is installed on the front. The pressure sensor 8 and the PLC controller 9 are connected by a wire, and the PLC controller 9 is connected by a wire to the servo motor 5. A trigger rod 302 is also fixed on the left side of the adjustment plate 3, between the two positioning rods 301. The position of the trigger rod 302 corresponds to the position of the pressure sensor 8. The length of the trigger rod 302 is shorter than the length of the positioning rod 301. The position of the positioning rod 301 corresponds to the position of the support base 601.

[0027] Specifically, the positioning rod 301 limits the movement of the support base 601, while the trigger rod 302 can transmit a pressure signal by contacting the pressure sensor 8, thereby enabling the PLC controller 9 to shut down the servo motor 5, thus preventing the servo motor 5 from working continuously. When the servo motor 5 stops working, the product reaches the stretching endpoint, which is convenient for staff to observe.

[0028] Please see Figure 1 and Figure 5 In this embodiment, the top of the testing table 1 is also fixed with a protective frame 16 that covers the outside of the clamping assembly 6. The front of the protective frame 16 is connected to a double door 17, which is made of transparent tempered glass. The bottom right side of the protective frame 16 has a notch for easy insertion of the fixing block 2.

[0029] Specifically, the protective frame 16 can play a protective role on the top of the testing table 1, preventing the product from suddenly breaking and causing debris to fly when stretched, thus protecting the surrounding staff. The double door 17 allows the inside of the protective frame 16 to be observed after it is closed.

[0030] When using: Open the double door 17, place the product to be tested on top of the two support seats 601 and attach it to the rubber pad 13, start the two cylinders 10 on the two fixing plates 603, the cylinders 10 push the clamping plate 12 down, thereby using the rubber pad 13 at the bottom of the clamping plate 12 to press the top of the product, thereby achieving clamping and fixing of the product. Then start the servo motor 5, the power output shaft of the servo motor 5 drives the lead screw 501 to rotate, thereby driving the movable block 14 threaded with it to slide in the movable groove 101, thereby driving the support seat 601 on the top of the movable block 14 to move to the top right side of the testing table 1. At this time, the clamping component 6 on the top right side of the testing table 1 can be moved away from the clamping component 6 on the top left side to achieve tensile strength testing of the product. When the support base 601 stretches the product close to the positioning rod 301, the positioning rod 301 contacts the support base 601 and prevents the support base 601 from moving. After the positioning rod 301 contacts the support base 601, the trigger rod 302 can contact the pressure sensor 8, thereby providing a pressure signal to the pressure sensor 8. This allows the PLC controller 9 to shut down the servo motor 5 and prevent the support base 601 from moving continuously. During the above testing process, staff can directly observe the state of the product when it is stretched. That is to say, if the product is not cracked or damaged when the support 601 stretches the product and is blocked by the positioning rod 301, the product can be considered qualified. However, if cracks or damage occur during the stretching process (i.e. before the stretching position reaches the end point) or during the time after the stretching reaches the end point, the product can be considered unqualified. After a product is inspected, the servo motor 5 can be restarted to drive the lead screw 501 to rotate in the opposite direction, thereby releasing the tension on the product. Then, the cylinder 10 can be activated to release the clamping plate 12 from the product. After the product is removed, the next product can be placed in and the inspection can continue according to the above steps.

[0031] It should be noted that the end point of the product stretching can be determined by stretching qualified products. After stretching qualified products, without removing them, after turning off the servo motor 5, the adjusting screw 4 can be turned. The rotation of the adjusting screw 4 will push the adjusting plate 3 to move closer to the support base 601 until the positioning rod 301 contacts the support base 601 and the trigger rod 302 contacts the pressure sensor 8. At this time, the position indicated by the pointer 303 on the scale line 7 can be observed. This position can be determined as the end point of the stretching of the same batch of products. This makes it convenient to determine the end point of the stretching of subsequent products in the same batch that need to be tested. That is, if the positions of the adjusting plate 3 and the positioning rod 301 do not change, when multiple products in the same batch are stretched and tested in sequence, the end point of the stretching of the products can be determined directly by the positioning of the positioning rod 301, so that the staff can directly observe the status of the products.

[0032] It should also be noted that the pressure sensor 8, PLC controller 9, cylinder 10, and servo motor 5 in this application are all common knowledge in the field, and their working principles are known technologies. The specific models and specifications can be selected and determined according to the device and actual conditions, so they will not be described in detail here.

[0033] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A device for testing the tensile strength of rolled metal products, comprising a testing platform (1), wherein two sets of mirror-image clamping assemblies (6) are provided on the top of the testing platform (1), and the clamping assembly (6) includes a support base (601), a support plate (602) fixed to the top of the support base (601), and a fixing plate (603) fixed to the top side of the support plate (602); characterized in that, A servo motor (5) is installed on one side of the testing table (1), and a set of clamping components (6) is driven by the servo motor (5) and moves on the testing table (1). A fixing block (2) is fixed on the top right side of the testing platform (1). An adjusting screw (4) is threadedly connected to the middle of the fixing block (2). One end of the adjusting screw (4) is rotatably connected to an adjusting plate (3) that is slidably connected to the top of the testing platform (1). Two positioning rods (301) that are far apart from each other are fixed on the left side of the adjusting plate (3). A scale line (7) is provided on the top of the testing platform (1) and near the adjustment plate (3). A pointer (303) is fixed on the bottom front of the adjustment plate (3), which slides on the top of the testing platform (1) and points to the scale line (7).

2. The tensile strength testing device for rolled metal products according to claim 1, characterized in that, A cylinder (10) is installed at the center of the top of the fixed plate (603). The power output shaft of the cylinder (10) extends through to the bottom of the fixed plate (603) and is fixed with a clamping plate (12). Rubber gaskets (13) are glued to the bottom of the clamping plate (12) and the top of the support base (601).

3. The tensile strength testing device for rolled metal products according to claim 1, characterized in that, One of the support bases (601) is fixed on the top left side of the testing table (1). The bottom of the other support base (601) is fixed with a movable block (14) and sliders (15) located on both sides of the movable block (14). The top of the testing table (1) is provided with a movable groove (101) and a sliding groove (102). The movable block (14) is placed in the movable groove (101), and the slider (15) is placed in the sliding groove (102). The power output shaft of the servo motor (5) is movably inserted into the movable groove (101) and is connected to a lead screw (501). The lead screw (501) and the movable block (14) are threaded together.

4. The tensile strength testing device for rolled metal products according to claim 1, characterized in that, Two limiting slide grooves (103) are provided on the top right side of the testing platform (1), and limiting sliders (304) are fixed on both sides of the bottom of the adjustment plate (3). The limiting sliders (304) are placed in the limiting slide grooves (103).

5. The tensile strength testing device for rolled metal products according to claim 1, characterized in that, A pressure sensor (8) is installed on the right side of the support base (601) near the adjustment plate (3), and a PLC controller (9) is installed on the front. The pressure sensor (8) and the PLC controller (9) are connected by wires, and the PLC controller (9) is connected by wires to the servo motor (5).

6. The tensile strength testing device for rolled metal products according to claim 1, characterized in that, A trigger rod (302) is fixed on the left side of the adjustment plate (3) and between the two positioning rods (301). The position of the trigger rod (302) corresponds to the position of the pressure sensor (8). The length of the trigger rod (302) is shorter than the length of the positioning rod (301). The position of the positioning rod (301) corresponds to the position of the support base (601).

7. The tensile strength testing device for rolled metal products according to claim 1, characterized in that, The top of the testing platform (1) is also fixed with a protective frame (16) that covers the outside of the clamping assembly (6). The front of the protective frame (16) is connected to a double door (17), which is made of transparent tempered glass. The bottom right side of the protective frame (16) has a notch for easy insertion of the fixing block (2).

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