Bolt tensioner test board

Abstract

The utility model relates to the technical field of bolt stretching test, and discloses a bolt stretcher testboard which comprises an operation table, a hydraulic cylinder is fixed at the top of the operation table, and a bolt main body for stretching test is arranged at the push rod end of the hydraulic cylinder; a protection assembly is arranged on one side of the bolt body, and a testing assembly is arranged on one side of the protection assembly. The testing assembly comprises two upper connecting seats, limiting grooves are formed in the opposite sides of the bottoms of the upper connecting seats, second limiting blocks are inserted into the inner sides of the limiting grooves, pressure sensors are connected to the tops of the second limiting blocks, fixing blocks are connected to the tops of the pressure sensors, and connecting blocks are connected to the tops of the fixing blocks. The outer sides of the lower connecting seat and the upper connecting seat are effectively shielded through the transparent protective cover, so that when the bolt main body is subjected to a tensile test, even if the bolt is broken and flies out, the bolt can be blocked by the transparent protective cover, the risk of injury to workers is greatly reduced, and the safety of the test process is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of bolt tension testing, in particular to a bolt tensioner testing bench. Background Art

[0002] Fasteners, such as bolts and nuts, are widely used in daily life, work, and industry. The strength of a bolt determines its use case, lifespan, and safety. Therefore, before bolts leave the factory, they must undergo necessary performance testing to prevent substandard products from entering the market.

[0003] Traditional bolt tensioning test equipment often lacks sufficient safety protection for the testing process. When a bolt breaks during the tensioning process, fragments may fly and injure people, posing a potential threat to workers. Therefore, a bolt tensioner test bench is proposed. Utility Model Content

[0004] The purpose of the present utility model is to provide a bolt tensioner test bench to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned object, the present invention provides the following technical solutions: a bolt tensioner test bench, comprising an operating table, a hydraulic cylinder fixed on the top of the operating table, a bolt body for tension testing provided at the end of the hydraulic cylinder push rod;

[0006] A protection component is provided on one side of the bolt body, and a test component is provided on one side of the protection component;

[0007] The test assembly includes two upper connecting seats, each of which has a limiting groove on one opposite side of the bottom, a second limiting block inserted into the inner side of the limiting groove, a pressure sensor connected to the top of the second limiting block, a fixed block connected to the top of the pressure sensor, and a connecting block connected to the top of the fixed block;

[0008] Two lower connecting seats are fixed on the top of the operating table, and the outer side of the bolt body is threadedly connected to a first limiting block located on the lower side of the lower connecting seat.

[0009] Preferably, the outer side of the bolt body is sequentially inserted into one side of the second limiting block, the fixing block, the connecting block and the pressure sensor.

[0010] Preferably, the lower connecting seat is located at the lower side of the upper connecting seat, and the tops of the two upper connecting seats are fixed to the push rod ends of the hydraulic cylinder.

[0011] Preferably, a PLC controller is installed on one side of the operating table, the output end of the pressure sensor is electrically connected to the input end of the PLC controller, and a display screen is installed on one side of the operating table.

[0012] Preferably, the protective assembly includes a transparent protective cover and two fixing frames, wherein a first connecting plate and a second connecting plate are fixed on both sides of the transparent protective cover, a motor is fixed on the top of the inner wall of one of the fixing frames, and a sliding column is fixed between the inner walls of the other fixing frame.

[0013] Preferably, a screw rod threadably connected to the second connecting plate is fixed to the output shaft end of the motor, and the outer side of the sliding column slides through one side of the first connecting plate.

[0014] Preferably, a switch located on the lower side of the second connecting plate is fixed to the bottom of the inner wall of one of the fixing frames, a warning light is fixed to the top of one of the fixing frames, and the output end of the switch is electrically connected to the input end of the warning light.

[0015] Compared with the prior art, the above technical solution adopted by the present invention has the following technical effects:

[0016] 1. By integrating pressure sensors and PLC controllers, the tensile force generated by the bolt body during the stretching process can be accurately measured and recorded in real time, and the tensile force value is displayed on the display in real time, making it convenient for operators to monitor the test process in real time and immediately identify potential problems.

[0017] Second, the transparent protective cover effectively shields the outer sides of the lower and upper connecting seats. Thus, when the bolt body is subjected to a tensile test, even if the bolt breaks and flies out, it can be blocked by the transparent protective cover, greatly reducing the risk of injury to workers and improving the safety of the test process.

[0018] 3. Through the linkage mechanism of the motor, screw rod, second connecting plate and switch, when the transparent protective cover drops into place and hits the contacts of the switch, the warning light will immediately produce a dual prompt of sound and light, actively informing the staff that the test is in progress, enhancing the safety warning effect and reducing the risk of accidents caused by negligence. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

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

[0021] Figure 2 This is a schematic diagram of the structure of the motor of the present utility model;

[0022] Figure 3 This is a structural diagram of the test component of the present utility model;

[0023] Figure 4 This is a schematic diagram of the three-dimensional structure of the test component of the present utility model;

[0024] Figure 5 This is a structural diagram of the second limit block of the utility model.

[0025] Explanation of the accompanying drawings: 1. Operating table; 2. Protection assembly; 21. Transparent protective cover; 22. Warning light; 23. First connecting plate; 24. Sliding column; 25. Switch; 26. Screw rod; 27. Second connecting plate; 28. Motor; 29. ​​Fixing bracket; 3. Bolt body; 5. Test assembly; 51. Lower connecting seat; 52. First limit block; 53. Second limit block; 54. Fixing block; 55. Connecting block; 56. Upper connecting seat; 57. Pressure sensor; 58. Limiting groove; 6. PLC controller; 7. Hydraulic cylinder. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0027] It should be noted that the structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the conditions under which this application can be implemented. Therefore, they have no substantive technical significance. Any structural modification, change in proportional relationship or adjustment of size should still fall within the scope of the technical content disclosed in this application without affecting the efficacy and purpose that can be achieved by this application.

[0028] Example

[0029] See also Figure 1-5 The utility model provides a technical solution: a bolt tensioner test bench, including an operating table 1, a hydraulic cylinder 7 is fixed on the top of the operating table 1, a bolt body 3 for tensile testing is provided at the push rod end of the hydraulic cylinder 7, a PLC controller 6 is installed on one side of the operating table 1, an output end of a pressure sensor 57 is electrically connected to an input end of the PLC controller 6, a display screen is installed on one side of the operating table 1, the pressure sensor 57 transmits the tensile force of the bolt body 3 to the PLC controller 6, and the PLC controller 6 displays the tensile force value on one side of the display screen;

[0030] A protection component 2 is provided on one side of the bolt body 3, and a test component 5 is provided on one side of the protection component 2;

[0031] In order to facilitate the tensile test of the bolt body 3, a test assembly 5 is provided. The test assembly 5 includes two upper connecting seats 56. Limiting grooves 58 are provided on opposite sides of the bottom of the upper connecting seat 56. A second limiting block 53 is inserted into the inner side of the limiting groove 58. The top of the second limiting block 53 is connected to a pressure sensor 57. The top of the pressure sensor 57 is connected to a fixing block 54. The top of the fixing block 54 is connected to a connecting block 55. The second limiting block 53 is placed inside the limiting groove 58, and then the first limiting block 52 is placed at the bottom of the lower connecting seat 51. At this time, the push rod end of the hydraulic cylinder 7 is retracted, and under the action of the lower connecting seat 51 and the upper connecting seat 56, the bolt body 3 is stretched;

[0032] Two lower connecting seats 51 are fixed on the top of the operating table 1. The outer side of the bolt body 3 is threadedly connected to the first limit block 52 located on the lower side of the lower connecting seat 51. The outer side of the bolt body 3 is inserted into the second limit block 53, the fixed block 54, the connecting block 55 and one side of the pressure sensor 57 in sequence. One end of the bolt is inserted into the second limit block 53, the fixed block 54, the connecting block 55 and one side of the pressure sensor 57 in sequence, and then the first limit block 52 is threadedly connected to the bolt body 3. The lower connecting seat 51 is located on the lower side of the upper connecting seat 56, and the tops of the two upper connecting seats 56 are fixed to the push rod end of the hydraulic cylinder 7.

[0033] In order to improve the safety of the bolt body 3 when it is tensile and broken, a protective assembly 2 is provided. The protective assembly 2 includes a transparent protective cover 21 and two fixing brackets 29. The switch is pressed to control the output shaft of the motor 28 to drive the screw rod 26 to rotate. At this time, the screw rod 26 is threadedly connected to the second connecting plate 27. Under the action of the second connecting plate 27, the first connecting plate 23 and the second connecting plate 27 are fixed on both sides of the transparent protective cover 21. The first connecting plate 23 on one side of the transparent protective cover 21 moves downward along the sliding column 24. The transparent protective cover 21 blocks the outer side of the lower connecting seat 51 and the upper connecting seat 56. At this time, the bolt body 3 is prevented from flying out after breaking during the tensile test and causing harm to the staff. At the same time, the transparent protective cover 21 allows the staff to visually observe the state of the bolt body 3 when it is stretched.

[0034] A motor 28 is fixed to the top of the inner wall of one of the fixing frames 29, and a sliding column 24 is fixed between the inner walls of another fixing frame 29. A screw rod 26 threadedly connected to the second connecting plate 27 is fixed to the output shaft end of the motor 28. The outer side of the sliding column 24 slides through one side of the first connecting plate 23. A switch 25 located on the lower side of the second connecting plate 27 is fixed to the bottom of the inner wall of one of the fixing frames 29. The second connecting plate 27 moves downward and abuts against the contact of the switch 25, causing the switch 25 to be triggered. At this time, the warning light 22 produces sound and light prompts, actively informing the staff that the operating table 1 is performing a tensile test on the bolt body 3. A warning light 22 is fixed to the top of one of the fixing frames 29, and the output end of the switch 25 is electrically connected to the input end of the warning light 22.

[0035] The model of PLC controller 6 is: S7-1200;

[0036] The model of the pressure sensor 57 is: LZ-CF1.

[0037] Working principle: When it is necessary to perform a tensile test on the bolt body 3, the hydraulic cylinder 7 is connected to the hydraulic station. It is only necessary to insert one end of the bolt into the second limit block 53, the fixing block 54, the connecting block 55 and one side of the pressure sensor 57 in sequence, and then thread the first limit block 52 with the bolt body 3, place the second limit block 53 on the inner side of the limit groove 58, and then place the first limit block 52 on the bottom of the lower connecting seat 51. At this time, the push rod end of the hydraulic cylinder 7 retracts, and under the action of the lower connecting seat 51 and the upper connecting seat 56, the bolt body 3 is stretched. At this time, the pressure sensor 57 transmits the tensile force of the bolt body 3 to the PLC controller 6, and the PLC controller 6 displays the tensile force value on one side of the display screen. At this time, the bolt body 3 is stretched according to the tensile force of the hydraulic cylinder 7, and the tensile test data of the bolt body 3 is displayed on the display screen;

[0038] When the bolt body 3 is under tension test, the switch is pressed to control the output shaft of the motor 28 to drive the screw rod 26 to rotate. At this time, the screw rod 26 is threadedly connected to the second connecting plate 27. Under the action of the second connecting plate 27, the first connecting plate 23 on one side of the transparent protective cover 21 is driven to move downward along the sliding column 24. Then the second connecting plate 27 moves downward and abuts against the contact of the switch 25, so that the switch 25 is triggered. At this time, the warning light 22 produces sound and light prompts, actively informing the staff that the operating table 1 is performing a tension test on the bolt body 3, so that the transparent protective cover 21 is shielded from the outer sides of the lower connecting seat 51 and the upper connecting seat 56. At this time, it is prevented that the bolt body 3 breaks and flies out during the tension test, causing injury to the staff. At the same time, the transparent protective cover 21 can enable the staff to visually observe the state of the bolt body 3 under tension. The transparent protective cover 21 clearly shows the tension state of the bolt body 3 during the test, which not only makes it easy to observe the deformation of the bolt body 3, but also helps to promptly discover abnormal conditions during the test.

[0039] In summary, by integrating the pressure sensor 57 and the PLC controller 6, the tension generated by the bolt body 3 during the stretching process can be measured and recorded in real time and accurately, and the tension value can be displayed on the display screen in real time, making it convenient for the operator to monitor the test process in real time and immediately discover potential problems.

[0040] The transparent protective cover 21 effectively shields the outer sides of the lower connecting seat 51 and the upper connecting seat 56. Thus, even if the bolt breaks and flies out during the tensile test of the bolt body 3, it can be blocked by the transparent protective cover 21, greatly reducing the risk of injury to the staff and improving the safety of the test process.

[0041] Through the linkage mechanism of the motor 28, the screw rod 26, the second connecting plate 27 and the switch 25, when the transparent protective cover 21 drops into place and contacts the switch 25, the warning light 22 will immediately produce a dual prompt of sound and light, actively informing the staff that the test is in progress, thereby enhancing the safety warning effect and reducing the risk of accidents caused by negligence.

[0042] Those skilled in the art will appreciate that various combinations and / or combinations of features described in the various embodiments and / or claims of the present invention may be employed, even if such combinations and / or combinations are not explicitly described in the present invention. In particular, various combinations and / or combinations of features described in the various embodiments and / or claims of the present invention may be employed without departing from the spirit and teachings of the present invention. All such combinations and / or combinations fall within the scope of the present invention.

Claims

1. A bolt tensioner test bench, comprising an operating table (1), characterized in that: A hydraulic cylinder (7) is fixed on the top of the operating table (1), and a bolt body (3) for tensile testing is provided at the push rod end of the hydraulic cylinder (7); A protection component (2) is provided on one side of the bolt body (3), and a test component (5) is provided on one side of the protection component (2); The test assembly (5) comprises two upper connecting seats (56), each of the upper connecting seats (56) having a limiting groove (58) formed on one opposite side of the bottom, a second limiting block (53) inserted into the inner side of the limiting groove (58), a pressure sensor (57) connected to the top of the second limiting block (53), a fixed block (54) connected to the top of the pressure sensor (57), and a connecting block (55) connected to the top of the fixed block (54); Two lower connecting seats (51) are fixed on the top of the operating table (1), and the outer side of the bolt body (3) is threadedly connected to a first limiting block (52) located on the lower side of the lower connecting seat (51); A PLC controller (6) is installed on one side of the operating table (1), an output end of the pressure sensor (57) is electrically connected to an input end of the PLC controller (6), and a display screen is installed on one side of the operating table (1); The protective assembly (2) comprises a transparent protective cover (21) and two fixing frames (29), wherein a first connecting plate (23) and a second connecting plate (27) are fixed to both sides of the transparent protective cover (21), a motor (28) is fixed to the top of the inner wall of one of the fixing frames (29), and a sliding column (24) is fixed between the inner walls of the other fixing frame (29); A screw rod (26) threadedly connected to the second connecting plate (27) is fixed to the output shaft end of the motor (28), and the outer side of the sliding column (24) slides through one side of the first connecting plate (23); A switch (25) located on the lower side of the second connecting plate (27) is fixed to the bottom of the inner wall of one of the fixing frames (29), a warning light (22) is fixed to the top of one of the fixing frames (29), and an output end of the switch (25) is electrically connected to an input end of the warning light (22).

2. A bolt tensioner test bench according to claim 1, characterized in that: The outer side of the bolt body (3) is sequentially inserted into one side of the second limiting block (53), the fixing block (54), the connecting block (55) and the pressure sensor (57).

3. A bolt tensioner test bench according to claim 2, characterized in that: The lower connecting seat (51) is located on the lower side of the upper connecting seat (56), and the tops of the two upper connecting seats (56) are fixed to the push rod ends of the hydraulic cylinder (7).

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