Sample mounting and jacking device of full-automatic tension-torsion testing machine

Abstract

The utility model relates to the technical field of tension-torsion testing machines, and particularly discloses a full-automatic tension-torsion testing machine sample mounting and jacking device which comprises a lower mounting plate, an upper mounting plate, a motor, a screw rod and a connecting plate, the motor is fixed on the connecting plate, a second nut seat is fixed on the connecting plate, the screw rod is rotatably connected with the second nut seat, and the upper mounting plate is fixed on the lower mounting plate. The screw rod is in threaded connection with a first nut seat, a first lower supporting arm and a second lower supporting arm are hinged to the lower mounting plate, a first upper supporting arm and a second upper supporting arm are hinged to the upper mounting plate, the first upper supporting arm and the first lower supporting arm are both hinged to the first nut seat, and the second upper supporting arm and the second lower supporting arm are both hinged to the second nut seat. The output end of the motor is connected with the screw rod; a sample base plate is arranged on the upper mounting plate, and a sample mounting hole is formed in the sample base plate. The high-strength bolt sample taking and placing device solves the problem of sample taking and placing in the high-strength bolt detection process, avoids frequent lifting operation of sample personnel on the high-strength bolt, reduces the working intensity of the sample personnel, and improves the detection efficiency of the high-strength bolt.

Description

Technical Field

[0001] This utility model relates to the field of tensile and torsion testing machine technology, and in particular to a sample installation and lifting device for a fully automatic tensile and torsion testing machine. Background Technology

[0002] With the continuous development of industrial and civil engineering systems, ordinary bolts can no longer meet the requirements, thus the application of high-strength bolts is becoming increasingly important. Against this backdrop, the increasing use of high-strength bolts, coupled with considerations for public safety in engineering projects, has led to stringent requirements for the mechanical properties of high-strength bolts from both construction and acceptance parties. Mechanical performance testing of high-grade and large-specification high-strength bolts has become a crucial indicator jointly required by manufacturers, users, and acceptance parties. However, existing bolt tension and torsion testing machines on the market are all manually operated, requiring frequent lifting of high-strength bolts, resulting in high labor intensity, worker fatigue, and low efficiency. Therefore, it is necessary to propose an improvement to overcome the shortcomings of existing technology. Summary of the Invention

[0003] The purpose of this invention is to solve the problems in the prior art by providing a fully automatic tensile and torsion testing machine sample installation and lifting device, which solves the problem of sample placement and extraction during the testing process of high-strength bolts.

[0004] The technical solution of this utility model is:

[0005] A fully automatic tensile-torsion testing machine sample mounting and lifting device includes a lower mounting plate, an upper mounting plate, a motor, a lead screw, and a connecting plate. The motor is fixed to the connecting plate, and a second lead screw nut is fixed to the connecting plate. The lead screw is rotatably connected to the second lead screw nut, and a first lead screw nut is threaded onto the lead screw. A first lower support arm and a second lower support arm are hinged to the lower mounting plate, and a first upper support arm and a second upper support arm are hinged to the upper mounting plate. The first upper support arm and the first lower support arm are both hinged to the first lead screw nut, and the second upper support arm and the second lower support arm are both hinged to the second lead screw nut. The output end of the motor is connected to the lead screw. A sample pad is provided on the upper mounting plate, and a sample mounting hole is provided on the sample pad.

[0006] Through the above technical solution, the first upper support arm, the first lower support arm, the second upper support arm, and the second lower support arm form a parallelogram structure, and all three are hinged. The motor drives the lead screw to rotate, and the lead screw drives the lead screw to rotate. The lead screw drives the first lead screw nut to move along the lead screw, realizing the lifting and lowering movement of the sample pad. The high-strength bolt is installed in the sample mounting hole. The high-strength bolt rises with the sample pad to the detection height of the high-strength bolt. With the cooperation of the robot, the high-strength bolt is placed on the detection position of the tension and torsion bolt testing machine, which solves the problem of sample taking and placing in the high-strength bolt testing process.

[0007] As a preferred technical solution, an installation platform is included, and the lower mounting plate is mounted on the installation platform.

[0008] The installation platform serves as a support base for the entire device, facilitating the movement and installation of the entire equipment and increasing ease of use.

[0009] As a preferred technical solution, a connecting plate is fixed on the second wire seat, and a reducer is connected to the output end of the motor, with the reducer fixed on the connecting plate.

[0010] The motor's output end is connected to the reducer's input end, ensuring precise control of the lead screw. This guarantees the accuracy of the sample pad's lifting height, facilitates positioning during high-strength bolt testing and installation, and improves the efficiency of high-strength bolt testing.

[0011] As a preferred technical solution, a first synchronous pulley and a second synchronous pulley are rotatably mounted on the connecting plate, a conveyor belt is installed between the first synchronous pulley and the second synchronous pulley, the first synchronous pulley is connected to the output end of the reducer, and the second synchronous pulley is connected to the lead screw.

[0012] The motor and reducer drive the lead screw to rotate via the first and second synchronous pulleys, and the lead screw drives the sample pad to move up and down.

[0013] As a preferred technical solution, the first wire female seat and the second wire female seat are installed at the same height.

[0014] The first and second female wire supports are at the same height, which ensures the stability of the sample pad when it is raised and lowered, thus ensuring the stability of the high-strength bolt when it is taken out and placed, and making it easy to control.

[0015] As a preferred technical solution, the end of the lead screw is provided with a limiting baffle to limit the movement of the first lead screw seat and prevent the first lead screw seat from slipping out of the lead screw.

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] This utility model discloses an automatic tensile-torsion testing machine sample installation and lifting device. It comprises a lower mounting plate, an upper mounting plate, a motor, a lead screw, and a connecting plate. A first threaded female is threaded onto the lead screw, and a second threaded female is fixed on the connecting plate. The lead screw and the second threaded female are rotatably connected. A sample pad is fixed on the upper mounting plate, and sample mounting holes are formed on the sample pad. High-strength bolts are installed in the sample mounting holes. The high-strength bolts rise with the sample pad to the testing height, and with the assistance of a robotic arm, are placed on the testing position of the tensile-torsion bolt testing machine. This solves the problem of sample handling during the high-strength bolt testing process, avoids frequent lifting operations by personnel, reduces the workload of personnel, and improves the testing efficiency of high-strength bolts. Attached Figure Description

[0018] Figure 1 A perspective view of the sample installation and lifting device of the fully automatic tensile-torsion testing machine of this utility model;

[0019] Figure 2 This is a front view of the specimen mounting and lifting device of the fully automatic tensile-torsion testing machine of this utility model.

[0020] In the diagram: 1. First upper support arm; 2. First lead screw nut; 3. First lower support arm; 4. Mounting platform; 5. Upper mounting plate; 6. Lower mounting plate; 7. Sample mounting hole; 8. Sample pad; 9. Motor; 10. Reducer; 11. Connecting plate; 12. First synchronous pulley; 13. Conveyor belt; 14. Second synchronous pulley; 15. Second lead screw nut; 16. Second upper support arm; 17. Second lower support arm; 18. Lead screw; 19. Limiting baffle. Detailed Implementation

[0021] To make the technical means, technical features, utility model purpose and technical effects of this utility model easier to understand, the present utility model will be further described below with reference to specific illustrations.

[0022] Example 1:

[0023] like Figure 1 and Figure 2 The diagram shown is a schematic diagram of the overall structure of the specimen installation and lifting device of the fully automatic tensile and torsion testing machine of this utility model.

[0024] The fully automatic tensile-torsion testing machine specimen mounting and lifting device of this embodiment includes a mounting platform 4, an upper mounting plate 5, a lower mounting plate 6, and a connecting plate 11. The lower mounting plate 6 is fixed to the mounting platform 4, and a first lower support arm 3 and a second lower support arm 17 are hinged to the lower mounting plate 6. A first upper support arm 1 and a second upper support arm 16 are hinged to the upper mounting plate 5. A second threaded rod nut 15 is fixed to the connecting plate 11, and a threaded rod 18 is rotatably mounted on the second threaded rod nut 15. A first threaded rod nut 2 is threaded onto the threaded rod 18. The first upper support arm 1 and the first lower support arm 3 are both hinged to the first threaded rod nut 2, and the second upper support arm 16 and the second lower support arm 17 are both hinged to the second threaded rod nut 15. The first upper support arm 1, the first lower support arm 3, the second upper support arm 16, and the second lower support arm 17 form a parallelogram structure. The sample pad 8 is fixed to the upper end of the upper mounting plate 5. The sample pad 8 has a sample mounting hole 7. Usually, the sample mounting hole 7 is located at the center of the sample pad 8 to ensure that the high-strength bolts are evenly stressed after installation and to allow the entire equipment to flip over.

[0025] The first threaded female seat 2 and the second threaded female seat 15 are installed at the same height, and the heights of the first threaded female seat 2 and the second threaded female seat 15 change as the motor 9 drives the lead screw 18 to rotate, but the heights of the first threaded female seat 2 and the second threaded female seat 15 are always kept equal.

[0026] A reducer 10 is fixed on the connecting plate 11, and a motor 9 is fixed on the reducer 10. The output end of the motor 9 is connected to the input end of the reducer 10. A first synchronous pulley 12 and a second synchronous pulley 14 are rotatably mounted on the connecting plate 11. A conveyor belt 13 is mounted on the first synchronous pulley 12 and the second synchronous pulley 14. The first synchronous pulley 12 is connected to the output end of the reducer 10, and the second synchronous pulley 14 is connected to the lead screw 18. The lead screw 18 is driven to rotate by the motor 9.

[0027] A limit baffle 19 is fixed to the end of the lead screw 18 for limiting the first lead screw nut 2 and for limiting the maximum sliding stroke of the first lead screw nut 2.

[0028] The above description is merely a preferred embodiment of this utility model and is not intended to limit the scope of this utility model. All equivalent changes and modifications made in accordance with the scope of the claims of this utility model should fall within the technical scope of this utility model.

Claims

1. A specimen mounting and lifting device for a fully automatic tensile-torsion testing machine, characterized in that, The system includes a lower mounting plate (6), an upper mounting plate (5), a motor (9), a lead screw (18), and a connecting plate (11). The motor (9) is fixed on the connecting plate (11), and a second lead screw nut (15) is fixed on the connecting plate (11). The lead screw (18) is rotatably connected to the second lead screw nut (15), and a first lead screw nut (2) is threaded onto the lead screw (18). A first lower support arm (3) and a second lower support arm (17) are hinged on the lower mounting plate (6). The upper mounting plate (5) is hinged with a first upper support arm (1) and a second upper support arm (16). The first upper support arm (1) and the first lower support arm (3) are both hinged to the first wire seat (2). The second upper support arm (16) and the second lower support arm (17) are both hinged to the second wire seat (15). The output end of the motor (9) is connected to the lead screw (18). The upper mounting plate (5) is provided with a sample pad (8), and the sample pad (8) is provided with a sample mounting hole.

2. The specimen installation and lifting device for the fully automatic tensile-torsion testing machine according to claim 1, characterized in that, The system includes an installation platform (4), on which the lower mounting plate (6) is mounted.

3. The specimen installation and lifting device for the fully automatic tensile-torsion testing machine according to claim 1, characterized in that, A connecting plate (11) is fixed on the second wire seat (15), and a reducer (10) is connected to the output end of the motor (9). The reducer (10) is fixed on the connecting plate (11).

4. The specimen installation and lifting device for the fully automatic tensile-torsion testing machine according to claim 3, characterized in that, The connecting plate (11) is rotatably mounted with a first synchronous wheel (12) and a second synchronous wheel (14). A conveyor belt (13) is installed between the first synchronous wheel (12) and the second synchronous wheel (14). The first synchronous wheel (12) is connected to the output end of the reducer (10), and the second synchronous wheel (14) is connected to the lead screw (18).

5. The specimen installation and lifting device for the fully automatic tensile-torsion testing machine according to claim 1, characterized in that, The first wire female seat (2) and the second wire female seat (15) are installed at the same height.

6. The specimen installation and lifting device for the fully automatic tensile-torsion testing machine according to claim 1, characterized in that, The end of the lead screw (18) is provided with a limiting baffle (19).

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