Pipe tensile tester
By combining an electric push rod and a tension sensor with laser and visual monitoring modules, the shortcomings of traditional pipe tensile testing instruments in terms of force control and clamping stability are solved, achieving precise tensile force monitoring and comprehensive data feedback, thus improving the accuracy and reliability of the test.
Patent Information
- Application Number
- CN202423293677.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-31
- Publication Date
- 2025-12-26
- Estimated Expiration
- 2034-12-31
AI Technical Summary
Traditional pipe tensile testing machines are not precise enough in terms of force and stroke control, have unstable clamping, and lack real-time monitoring functions, which affects the accuracy and reliability of test results.
The system employs an electric push rod and a tension sensor to achieve precise control of the tensile force. A laser sensor and a vision monitoring module are used to monitor the stroke of the clamping assembly and the spline status in real time. The clamping assembly is designed with a screw and clamping teeth structure to adapt to different shapes and sizes.
It enables precise control of tensile force, prevents slippage, provides comprehensive real-time data feedback, and improves the accuracy and reliability of testing.
Smart Images
Figure CN223727561U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to tensile test technical field, concretely relates to a pipe material tensile tester. BACKGROUND
[0002] In the field of material performance testing, pipe material tensile test is one of the important means to evaluate the mechanical properties of pipe material. Traditional pipe material tensile tester often has some limitations. Traditional pipe material tensile tester has some limitations in structure and function. For example, the tensile mechanism of some tensile devices is relatively simple in design, which is difficult to accurately monitor the tension and stroke, resulting in inaccurate test results. Moreover, for the way of clamping the sample bar to be tested, some devices may not be able to stably and firmly clamp sample bars of different shapes and sizes, which may easily slip or be clamped unstably during the tensile process, affecting the reliability of the test data.
[0003] In addition, many old tensile testers lack the function of real-time monitoring of the surface state of the pipe sample during the test process. The operator can only observe whether the sample has obvious deformation, cracks and other conditions after the tensile test is completed, which cannot timely capture these changes during the tensile process, and is not conducive to comprehensively and dynamically analyzing the performance of the pipe at different tension stages.
[0004] In order to solve at least part of the above problems, a pipe material tensile tester is provided. CONTENT OF THE UTILITY MODEL
[0005] The utility model provides a pipe material tensile tester, through the cooperation of electric push rod and tensile sensor, can accurate control the tensile force of the sample to be tested, and real time monitoring the tensile force size, data transmission is given to the controller.
[0006] The technical scheme of the utility model is as follows: a pipe material tensile tester, comprising a base, a tensile assembly is arranged on the upper side of the base, the tensile assembly is connected with a clamping assembly, the clamping assembly is used for clamping a sample to be tested, and the tensile assembly is used for tensile test on the sample to be tested.
[0007] The tensile assembly comprises a guide column, a straight slot rod, a sliding block, a connecting rod, a rotating wheel, a tensile sensor and an electric push rod, the electric push rod is fixed on the base, the straight slot rod is fixed on the base, both ends of the straight slot rod are respectively fixed with the guide column, the guide column passes through the center of the straight slot rod, the sliding groove arranged at both ends of the straight slot rod is respectively provided with the sliding block, the guide column passes through the sliding block, one end of the connecting rod is respectively rotationally connected with the sliding block, the other end of the two connecting rods is respectively rotationally connected with one side edge position of the rotating wheel, the center shaft of the rotating wheel is rotationally connected with the center of the straight slot rod, the lower side of the sliding block on one side of the telescopic rod upper end of the electric push rod is fixedly connected, and the other side of the sliding block is connected with the clamping assembly.
[0008] The tension sensor is arranged at the upper end of the telescopic rod of the electric push rod, the tension sensor and the controller are in data transmission, and the controller controls the electric push rod.
[0009] Preferably, a laser sensor is further arranged on the base and located at the lower side of the clamping assembly to monitor the stroke distance of the clamping assembly, and the laser sensor and the controller are in data transmission.
[0010] Preferably, a visual monitoring module is further arranged, the visual monitoring module comprises a plurality of fixing rods and visual sensors, the fixing rods fix the visual sensors, the visual sensors are used for monitoring the state of the sample to be tested, the fixing rods are fixed to the middle part of one side of the straight slot rod, and the fixing rods are located between the two groups of clamping assemblies.
[0011] Preferably, the clamping assembly comprises clamping blocks, screw rods and U-shaped frames, the other side of each sliding block is fixedly provided with the U-shaped frame, the two sides of the U-shaped frame are rotationally connected with nuts, each nut is threadedly connected with the screw rod, the screw rod penetrates through one side of the U-shaped frame, one end of each screw rod in the U-shaped frame is fixedly connected with the clamping block, and the opposite side of the clamping block is provided with clamping teeth.
[0012] Preferably, the other end of the screw rod is fixedly provided with a stop block.
[0013] The working principle and beneficial effects of the utility model are as follows:
[0014] I. Through cooperation of the electric push rod and the tension sensor, the stretching force of the sample to be tested can be accurately controlled, the tension can be monitored in real time, and data can be transmitted to the controller.
[0015] II. The clamping assembly is designed by the screw rod and the clamping block with the clamping teeth, the distance between the clamping blocks can be adjusted by rotating the nut to drive the screw rod to move, different shapes and sizes of the sample to be tested can be adapted, the friction between the clamping teeth and the sample to be tested can be increased, the sample to be tested can be effectively prevented from slipping in the stretching process, and the test can be ensured to be smoothly conducted.
[0016] III. The laser sensor is arranged to monitor the stroke distance of the clamping assembly, and the visual monitoring module is arranged to monitor the state of the sample to be tested in real time, more comprehensive data feedback can be provided for the test process, which not only helps to find abnormal conditions in the test process in time, such as local deformation and crack generation of the sample to be tested, but also provides more abundant information for subsequent data analysis and material performance evaluation. BRIEF DESCRIPTION OF DRAWINGS
[0017] The utility model will be further described in detail below in combination with the drawings and specific embodiments.
[0018] Figure 1 It is the whole three-dimensional structure schematic diagram of the utility model Figure 1 ;
[0019] Figure 2 It is the whole three-dimensional structure schematic diagram of the utility model Figure 2 ;
[0020] Figure 3 It is the side view of the utility model;
[0021] In the figure: 1, stretch subassembly;101, guide column;102, straight slot bar;103, sliding block;104, connecting rod;105, runner;106, tension sensor;107, electric push rod;2, base;201, mounting hole;3, clamping subassembly;301, clamping block;3011, clamping tooth;302, nut;303, screw;304, stop block;305, U-shaped frame;4, visual monitoring module;401, fixed rod;402, vision sensor;5, laser sensor;6, to be measured sample. Specific embodiments
[0022] The technical scheme in the embodiments of the utility model will be described clearly and completely in combination with the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative labor are involved in the scope of protection of the utility model.
[0023] Please refer to Figure 1 - Figure 3 The utility model provides a kind of pipe tensile testing machine, including base 2, the upper side of the base 2 is provided with stretch subassembly 1, the stretch subassembly 1 connects clamping subassembly 3, the clamping subassembly 3 is used to clamp to be measured sample 6, the stretch subassembly 1 carries out tensile test to the to be measured sample 6;
[0024] The stretching assembly 1 comprises a guide column 101, a straight slot rod 102, a sliding block 103, a connecting rod 104, a rotating wheel 105, a tension sensor 106 and an electric push rod 107, the electric push rod 107 is fixed on the base 2, the straight slot rod 102 is fixed on the base 2, both ends of the straight slot rod 102 are respectively fixed with the guide column 101, the guide column 101 passes through the center of the straight slot rod 102, the sliding groove arranged at both ends of the straight slot rod 102 is respectively arranged with the sliding block 103, the guide column 101 passes through the sliding block 103, one end of the connecting rod 104 is rotationally connected with the sliding block 103 respectively, the other end of the connecting rod 104 is rotationally connected with one side edge position of the rotating wheel 105 respectively, the center shaft of the rotating wheel 105 is rotationally connected with the center of the straight slot rod 102, the upper end of the telescopic rod of the electric push rod 107 is fixedly connected with one side of the lower sliding block 103, the other side of the sliding block 103 is connected with the clamping assembly 3.
[0025] The tension sensor 106 is arranged on the upper end of the telescopic rod of the electric push rod 107, the tension sensor 106 and the controller perform data transmission, and the controller controls the electric push rod 107.
[0026] In the embodiment, the telescopic rod of the electric push rod 107 pushes the lower sliding block 103 upward, the sliding block 103 slides upward along the guide column 101 at both ends of the straight slot rod 102, because the sliding block 103 is rotationally connected with the connecting rod 104, the other end of the connecting rod 104 is rotationally connected with the edge of the rotating wheel 105, when the sliding block 103 rises, the rotating wheel 105 is driven to rotate through the connecting rod 104, the center shaft of the rotating wheel 105 is rotationally connected with the center of the straight slot rod 102, so that the upper sliding block 103 synchronously slides downward in the sliding groove of the straight slot rod 102, the clamping assembly 3 connected with the two sliding blocks 103 is realized to be close to each other, after the clamping assembly 3 on the upper side and the lower side clamps the two ends of the sample strip 6 to be measured, the lower sliding block 103 is pulled downward through the telescopic rod of the electric push rod 107, the two sliding blocks 103 are realized to be away from each other, the clamping assembly 3 is realized to be away from each other, the stretching action of the sample strip 6 to be measured is completed, and the tension is applied to the sample strip 6 to be measured.
[0027] The tension sensor 106 is arranged on the upper end of the telescopic rod of the electric push rod 107, the tension sensor 106 is arranged on the upper end of the telescopic rod of the electric push rod 107, which can realize real-time sensing of the tension applied to the sample strip 6 during the stretching process, and transmit the tension data to the controller.
[0028] Preferably, a laser sensor 5 is further arranged on the base 2 and located on the lower side of the clamping assembly 3, which is used for monitoring the stroke distance of the clamping assembly 3, and the laser sensor 5 and the controller perform data transmission.
[0029] The laser sensor 5 is located on the base 2 and at the lower side of the clamping assembly 3, monitors the stroke distance of the clamping assembly 3 by emitting laser and receiving reflected light, and transmits stroke data to the controller, so that the controller knows the process and position information of the stretching
[0030] Preferably, a visual monitoring module 4 is further included, the visual monitoring module 4 comprises a plurality of fixing rods 401 and visual sensors 402, the fixing rods 401 fix the visual sensors 402, the visual sensors 402 are used for monitoring the state of the sample strip 6 to be tested, the fixing rods 401 are fixed to the middle part of one side of the straight groove rod 102, and the fixing rods 401 are located between the two groups of clamping assemblies 3.
[0031] The visual sensors 402 in the visual monitoring module 4 are fixed to the middle part of one side of the straight groove rod 102 through the fixing rods 401 and are located between the two groups of clamping assemblies 3, can capture surface state changes of the sample strip 6 to be tested in a stretching process in real time, such as deformation, cracks and the like, and transmit image information to related data processing equipment for observation and analysis by an operator
[0032] Preferably, the clamping assembly 3 comprises a clamping block 301, a screw rod 303 and a U-shaped frame 305, the other side of each sliding block 103 is provided with the U-shaped frame 305 in a fixed manner, respectively, two sides of the U-shaped frame 305 are rotationally connected with nuts 302, respectively, each nut 302 is threadedly connected with the screw rod 303, respectively, the screw rod 303 penetrates through one side of the U-shaped frame 305, one end of each screw rod 303 in the U-shaped frame 305 is fixedly connected with the clamping block 301, respectively, and the opposite side of the clamping block 301 is provided with a clamping tooth 3011.
[0033] Preferably, the other end of the screw rod 303 is fixedly provided with a stop block 304.
[0034] The sample strip 6 to be tested is placed between the two clamping blocks 301, the nuts 302 are rotated on the two sides of the U-shaped frame by rotating the screw rod 303, the screw rod 303 is driven to move to the direction of the clamping block 301 under the action of threads, the clamping blocks 301 relatively approach each other, the clamping tooth 3011 on the clamping block 301 is in close contact with the sample strip 6 to be tested, and the sample strip 6 to be tested is clamped firmly, and the stop block 304 at the other end of the screw rod 303 can prevent the nut 302 from being pulled out.
[0035] The working principle of the utility model is as follows:
[0036] The power supply is turned on, the controller is started, and related parameters of the stretching test, such as stretching speed and tensile peak value, are set, and these parameters are sent to the electric push rod 107 and other monitoring equipment as control basis.
[0037] The electric push rod 107 starts to work, and the telescopic rod pushes the lower slider 103 upwards at a preset speed, drives the whole stretching assembly 1 to move, and makes the distance between the two sets of clamping assemblies 3 smaller than the distance of the sample strip 6 to be measured;
[0038] According to the shape and size of the sample strip 6 to be measured, the distance between the clamping blocks 301 of the clamping assemblies 3 is adjusted, the screw rod 303 is driven to move by rotating the nut 302, the distance between the clamping blocks 301 is slightly larger than the size of the sample strip 6 to be measured, then the sample strip 6 to be measured is placed between the two clamping blocks 301, the nut 302 is rotated again, the clamping blocks 301 clamp the sample strip 6 to be measured, and it is ensured that the sample strip 6 to be measured is firmly fixed;
[0039] The telescopic rod of the electric push rod 107 is controlled to retract, the two clamping assemblies 3 are driven to move away from each other, and the sample strip 6 to be measured clamped is stretched.
[0040] During the stretching process, the tension sensor 106 monitors the tension in real time and transmits data to the controller, and the controller displays the tension information on an external device (such as a display).
[0041] The laser sensor 5 synchronously monitors the stroke distance of the clamping assembly 3, and transmits data to the controller, when the stroke reaches a preset maximum value or other set conditions, the controller can control the electric push rod 107 to stop working, and overstretching is prevented.
[0042] The visual sensor 402 in the visual monitoring module 4 continuously shoots the state of the sample strip 6 to be measured, and transmits image information to an external device (such as a display).
[0043] The above is only a preferred embodiment of the present application, and is not used to limit the present application, any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the protection scope of the present application.
Claims
1. A pipe tensile tester comprising a base (2), characterised in that, The upper side of the base (2) is provided with a stretching assembly (1), the stretching assembly (1) is connected with a clamping assembly (3), the clamping assembly (3) is used for clamping a to-be-tested sample strip (6), and the stretching assembly (1) performs a tensile test on the to-be-tested sample strip (6); The stretching assembly (1) comprises a guide column (101), a straight slot rod (102), a sliding block (103), a connecting rod (104), a rotating wheel (105), a tension sensor (106) and an electric push rod (107), the electric push rod (107) is fixed on the base (2), the straight slot rod (102) is fixed on the base (2), both ends of the straight slot rod (102) are respectively fixed with the guide column (101), the guide column (101) penetrates through the center of the straight slot rod (102), the sliding grooves arranged at both ends of the straight slot rod (102) are respectively provided with the sliding blocks (103), the guide column (101) penetrates through the sliding blocks (103), one end of the connecting rod (104) is rotationally connected with the sliding block (103) respectively, the other end of the connecting rod (104) is rotationally connected with one side edge position of the rotating wheel (105) respectively, the center shaft of the rotating wheel (105) is rotationally connected with the center of the straight slot rod (102), and the sliding block (103) on the lower side of the telescopic rod of the electric push rod (107) is fixedly connected with one side of the sliding block (103), the other side of the sliding block (103) is connected with the clamping assembly (3). The tension sensor (106) is arranged on the upper end of the telescopic rod of the electric push rod (107), the tension sensor (106) and a controller perform data transmission, and the controller controls the electric push rod (107).
2. A pipe tensile tester according to claim 1, wherein A laser sensor (5) is further arranged on the base (2) and located on the lower side of the clamping assembly (3), and is used for monitoring the stroke distance of the clamping assembly (3), and the laser sensor (5) and the controller perform data transmission.
3. A pipe tensile tester according to claim 2, wherein A visual monitoring module (4) is further arranged, the visual monitoring module (4) comprises a fixing rod (401) and a visual sensor (402), the fixing rod (401) is a plurality of fixing rods, the fixing rod (401) fixes the visual sensor (402), the visual sensor (402) is used for monitoring the state of the to-be-tested sample strip (6), the fixing rod (401) is fixed to the middle part of one side of the straight slot rod (102), and the fixing rod (401) is located between the two groups of clamping assemblies (3).
4. A pipe tensile tester according to claim 1, wherein Said clamping assembly (3) includes clamping blocks (301), screw rods (303) and U-shaped frames (305), the other side of each of said sliding blocks (103) is respectively provided with said U-shaped frame (305), the two sides of said U-shaped frame (305) are respectively rotationally connected with nuts (302), each of said nuts (302) is respectively threadedly connected with said screw rod (303), said screw rod (303) penetrates through one side of said U-shaped frame (305), one end of each of said screw rod (303) in said U-shaped frame (305) is respectively fixedly connected with said clamping block (301), and the opposite side of said clamping block (301) is provided with a clamping tooth (3011).
5. A pipe tensile tester according to claim 4, wherein The other end of said screw rod (303) is fixedly provided with a stop block (304).