A bolt fastener detection device

Abstract

This utility model provides a bolt fastener testing device, belonging to the technical field of bolt fastener testing equipment. It includes a support base, auxiliary seats on both sides of the top of the support base, a guide rod fixedly connected to the top of the auxiliary seats, a load-bearing seat fixedly connected to the top of the guide rod, a hydraulic telescopic cylinder at the bottom of the load-bearing seat, a mounting plate fixedly connected to the bottom of the hydraulic telescopic cylinder, a moving groove at the bottom of the mounting plate, a guide block at the top of the inner wall of the moving groove, and a bolt mounting seat slidably connected to the bottom of the guide block. A synchronous motor is located at the front of one side of the auxiliary seats, and a test platform is fixedly connected to the output end of the synchronous motor. This utility model provides a bolt fastener testing device that uses a hydraulic motor to drive a gear to rotate a driven gear plate, causing the bolt to be installed into the threaded hole of the bolt plate. As the hydraulic motor continues to rotate, torque is generated, and the torque value of the bolt is detected by a torque sensor.

Description

Technical Field

[0001] This utility model belongs to the technical field of bolt fastener testing equipment, and specifically relates to a bolt fastener testing device. Background Technology

[0002] In existing bolt inspection processes, the multiple cylinders of the equipment cannot be driven synchronously, which can lead to a certain positional deviation when limiting the bolt. The "A Bolt Fastener Inspection Device" disclosed in application number "CN202422250190.4" is an increasingly mature technology. It uses a press body to compress the placed bolt for inspection. When the input pressure value is reached, the press body stops working and resets. At this time, the placed bolt is removed and observed for deformation, thus completing the bolt inspection work. However, this device still has the following defects: during the inspection process, multiple types of tests such as torque test, tensile test, and compressive force test are required for the bolt. The above-mentioned equipment can only perform a single pressure test on the bolt during the overall bolt structure inspection process, and the data collection method is limited, and it cannot perform multiple inspection items on the bolt. Utility Model Content

[0003] The purpose of this invention is to provide a bolt fastener testing device, which aims to solve the problem that in the existing technology, the bolt can only be subjected to a single pressure test during the overall structural testing of the bolt, the data collection method is limited, and multiple testing items cannot be performed on the bolt.

[0004] To achieve the above objectives, this utility model provides the following technical solution: It includes a support base, with auxiliary seats on both sides of the top of the support base. A guide rod is fixedly connected to the top of the auxiliary seats, and a load-bearing seat is fixedly connected to the top of the guide rod. A hydraulic telescopic cylinder is provided at the bottom of the load-bearing seat, and an installation plate is fixedly connected to the bottom of the hydraulic telescopic cylinder. A moving groove is opened at the bottom of the installation plate, and a guide block is provided at the top of the inner wall of the moving groove. A bolt mounting seat is slidably connected to the bottom of the guide block. A synchronous motor is provided at the front of one side of the auxiliary seats, and a test platform is fixedly connected to the output end of the synchronous motor. A hydraulic motor is embedded on one side of the bottom of the test platform, and a torque sensor is provided at the output end of the hydraulic motor. A drive gear is provided at one end of the torque sensor. A screw-hole disc is rotatably connected to the bottom of the test platform, and a driven gear disc is provided on the bottom side of the screw-hole disc. The driven gear disc meshes with the drive gear.

[0005] In one embodiment of the bolt fastener testing device of this utility model, limiting grooves are provided at the four corners of the top and bottom of the test platform, and a receiving groove is provided at the top and bottom of one side of the test platform. A synchronous hydraulic rod is provided on one side of the inner wall of the receiving groove, and an arc-shaped plug is fixedly connected to one end of the synchronous hydraulic rod. The two ends of the arc-shaped plug are inserted and connected to the limiting groove.

[0006] In this scheme, the bolt to be tested is installed into the bolt mounting seat. When the hydraulic telescopic cylinder moves downward, the synchronous hydraulic rod retracts the bow-shaped insert, retracting it into the storage groove. The synchronous motor rotates the test platform, flipping it so that the threaded hole disc is aligned with the bottom of the threaded hole disc. The synchronous hydraulic rod pushes the bow-shaped insert out of the storage groove and reinserts it into the corresponding limiting groove, fixing the position of the test platform. At this time, the hydraulic motor rotates the drive gear, causing the driven gear disc to rotate, so that the bolt is installed into the threaded hole of the threaded hole disc. As the hydraulic motor continues to rotate, torque is generated, and the bolt is subjected to torque testing. The torque value is detected by a torque sensor. Simultaneously, during the testing process, after the bolt is tightened in the threaded hole disc, the hydraulic telescopic cylinder moves the load-bearing seat upward to perform a tensile test on the bolt mounting seat, detecting the bolt tensile force value.

[0007] In one embodiment of the bolt fastener testing device of this utility model, a compression seat is embedded on the top of the test bench, and a downward pressure sensor is provided at the bottom of the inner wall of the compression seat.

[0008] In this scheme, after the torque test is completed, the sample in the bolt mounting seat is replaced. At this time, the synchronous hydraulic rod repeats the above operation, the synchronous motor flips the test table, the hydraulic telescopic cylinder moves downward to insert the bolt into the compression seat, and compression pressure is applied. The lower pressure sensor detects the critical value of bolt breakage.

[0009] In one embodiment of the bolt fastener testing device of this utility model, an upper hydraulic push rod is provided on one side of the moving groove, one end of the upper hydraulic push rod is fixedly connected to one side of the bolt mounting seat, and an upper pressure sensor is provided between the upper hydraulic push rod and the bolt mounting seat.

[0010] In this scheme, after the bolt is tightened in the bolt hole, the upper hydraulic jack pushes the bolt mounting seat to move. The bolt mounting seat moves along the guide block, and the shear force critical value of the bolt is tested by the upper pressure sensor.

[0011] In one embodiment of the bolt fastener detection device of this utility model, a damping buffer is fixedly connected to the other side of the moving groove, and the other end of the damping buffer is fixedly connected to the other side of the bolt mounting seat.

[0012] In this scheme, when the bolt breaks at the critical shear force value, the impact force is buffered by a damping buffer.

[0013] In one embodiment of the bolt fastener testing device of this utility model, sleeves are embedded on both sides of the mounting plate, and the sleeves are slidably connected to the outer wall of the guide rod.

[0014] In this design, when the mounting plate moves up and down, the sleeve slides outside the guide rod to guide the direction of movement of the mounting plate.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] 1) The hydraulic motor drives the driven gear to rotate, causing the driven gear plate to rotate, so that the bolt is installed into the threaded hole of the bolt plate. The hydraulic motor continues to rotate, generating torque, and the torque is tested on the bolt. The torque value is detected by the torque sensor. The hydraulic telescopic cylinder moves the load-bearing seat upward to conduct a pulling test on the bolt mounting seat and detect the bolt tension value.

[0017] 2) The synchronous motor flips the test stand, and the extrusion seat moves to the bottom of the bolt mounting seat. The hydraulic telescopic cylinder moves downward to insert the bolt into the extrusion seat and apply extrusion pressure. The lower pressure sensor detects the critical value of the bolt's fracture. When performing shear force testing on the bolt, after the bolt is fixed in the bolt hole and tightened, the upper hydraulic push rod pushes the bolt mounting seat to move. The bolt mounting seat moves along the guide block, and the upper pressure sensor tests the critical value of the bolt's shear force. Various forms of testing can be performed on the bolt sample. Attached Figure Description

[0018] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0019] Figure 1 This is a schematic diagram of the structure of this utility model;

[0020] Figure 2 This is a cross-sectional structural diagram of the present invention;

[0021] Figure 3 This is a schematic diagram of the cross-sectional structure of the auxiliary seat of this utility model.

[0022] In the diagram: 1. Support base; 2. Auxiliary base; 3. Guide rod; 4. Load-bearing base; 5. Hydraulic telescopic cylinder; 6. Mounting plate; 7. Moving slot; 8. Guide block; 9. Bolt mounting base; 10. Synchronous motor; 11. Test bench; 12. Hydraulic motor; 121. Torque sensor; 13. Drive gear; 14. Screw hole disc; 15. Driven gear disc; 16. Limiting slot; 17. Storage slot; 18. Synchronous hydraulic rod; 19. Bow-shaped insert; 20. Extrusion seat; 21. Lower pressure sensor; 22. Upper hydraulic push rod; 23. Upper pressure sensor; 24. Damping buffer; 25. Sleeve. Detailed Implementation

[0023] 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.

[0024] Please see Figure 1-3 This utility model provides the following technical solution: a bolt fastener testing device, including a support base 1, auxiliary bases 2 on both sides of the top of the support base 1, a guide rod 3 fixedly connected to the top of the auxiliary base 2, a load-bearing base 4 fixedly connected to the top of the guide rod 3, a hydraulic telescopic cylinder 5 at the bottom of the load-bearing base 4, an installation plate 6 fixedly connected to the bottom of the hydraulic telescopic cylinder 5, a moving groove 7 at the bottom of the installation plate 6, a guide block 8 at the top of the inner wall of the moving groove 7, a bolt mounting base 9 slidably connected to the bottom of the guide block 8, a synchronous motor 10 at the front of one side of the auxiliary base 2, a test platform 11 fixedly connected to the output end of the synchronous motor 10, a hydraulic motor 12 embedded on one side of the bottom of the test platform 11, a torque sensor 121 at the output end of the hydraulic motor 12, a drive gear 13 at one end of the torque sensor 121, a screw hole disc 14 rotatably connected to the bottom of the test platform 11, a driven gear disc 15 at the bottom side of the screw hole disc 14, and the driven gear disc 15 meshing with the drive gear 13.

[0025] In a specific embodiment of a bolt fastener testing device, please refer to [link / reference]. Figure 3 Limiting grooves 16 are provided at the four corners of the top and bottom of the test platform 11. A storage groove 17 is provided at the top and bottom of one side of the test platform 11. A synchronous hydraulic rod 18 is provided on one side of the inner wall of the storage groove 17. One end of the synchronous hydraulic rod 18 is fixedly connected to an arc-shaped plug 19. Both ends of the arc-shaped plug 19 are inserted and connected to the limiting groove 16.

[0026] Please see Figure 3 The bolt to be tested is installed into the bolt mounting seat 9. When the hydraulic telescopic rod 5 moves downward, the synchronous hydraulic rod 18 retracts the bow-shaped insert 19 and retracts it into the storage groove 17. The synchronous motor 10 rotates the test platform 11 and flips the test platform 11 so that the screw hole plate 14 is aligned with the bottom of the screw hole plate 14. The synchronous hydraulic rod 18 pushes the bow-shaped insert 19 out of the storage groove 17 and reinserts it into the corresponding limiting groove 16 to fix the position of the test platform 11. At this time, the hydraulic motor 12 rotates the drive gear 13 to drive the driven gear plate 15 to rotate, so that the bolt is installed into the threaded hole of the screw hole plate 14. The hydraulic motor 12 continues to rotate, generating torque to test the torque of the bolt. The torque value is detected by the torque sensor 121. At the same time, during the test, after the bolt is fixed and tightened in the screw hole plate 14, the hydraulic telescopic cylinder 5 moves the load-bearing seat 4 upward to perform a pulling test on the bolt mounting seat 9 and detect the bolt tension value.

[0027] In a specific embodiment of a bolt fastener testing device, please refer to [link / reference]. Figure 3 The top of the test bench 11 is fitted with a compression seat 20, and the bottom of the inner wall of the compression seat 20 is fitted with a pressure sensor 21.

[0028] Please see Figure 3 After the torque test is completed, replace the sample in the bolt mounting seat 9. At this time, the synchronous hydraulic rod 18 repeats the above operation, the synchronous motor 10 flips the test table 11, the hydraulic telescopic rod 5 moves downward to insert the bolt into the compression seat 20, and the compression pressure is applied. The lower pressure sensor 21 detects the critical value of the bolt's breakage.

[0029] In a specific embodiment of a bolt fastener testing device, please refer to [link / reference]. Figure 2 The movable slot 7 is provided with an upper hydraulic push rod 22 on one side. One end of the upper hydraulic push rod 22 is fixedly connected to one side of the bolt mounting seat 9. An upper pressure sensor 23 is provided between the upper hydraulic push rod 22 and the bolt mounting seat 9.

[0030] Please see Figure 2 After the bolt is tightened in the bolt hole plate 14, the upper hydraulic jack 22 pushes the bolt mounting seat 9 to move. The bolt mounting seat 9 moves along the guide block 8, and the upper pressure sensor 23 tests the critical value of the bolt shear force.

[0031] In a specific embodiment of a bolt fastener testing device, please refer to [link / reference]. Figure 2 A damping buffer 24 is fixedly connected to the other side of the moving slot 7, and the other end of the damping buffer 24 is fixedly connected to the other side of the bolt mounting seat 9.

[0032] Please see Figure 2 When the bolt breaks at the critical shear force value, the impact force is buffered by the damping buffer 24.

[0033] In a specific embodiment of a bolt fastener testing device, please refer to [link / reference]. Figure 1 The mounting plate 6 has sleeves 25 embedded on both sides, and the sleeves 25 are slidably connected to the outer wall of the guide rod 3.

[0034] Please see Figure 1 When the mounting plate 6 moves up and down, the sleeve 25 slides outside the guide rod 3 to guide the movement direction of the mounting plate 6.

[0035] The present invention provides a bolt fastener testing device, which is used as follows: The bolt to be tested is installed into the bolt mounting seat 9. When the hydraulic telescopic cylinder 5 moves downward, the synchronous hydraulic rod 18 retracts the bow-shaped insert 19, retracting the bow-shaped insert 19 into the storage groove 17. The synchronous motor 10 rotates the test platform 11, flipping the test platform 11 so that the threaded hole disk 14 is aligned with the bottom of the threaded hole disk 14. The synchronous hydraulic rod 18 pushes the bow-shaped insert 19 out of the storage groove 17 and reinserts it into the corresponding limiting groove 16, fixing the position of the test platform 11. At this time, the hydraulic motor 12 rotates the drive gear 13 to drive the driven gear disk 15 to rotate, so that the bolt is installed into the threaded hole of the threaded hole disk 14. The hydraulic motor 12 continues to rotate, generating torque, and the torque of the bolt is tested. The torque is detected by the torque sensor 121. During the testing process, after the bolt is tightened in the screw hole plate 14, the hydraulic telescopic cylinder 5 moves the load-bearing seat 4 upward to conduct a tensile test on the bolt mounting seat 9, and the bolt tensile force value is detected. After replacing the bolt, the above operation is repeated, but the torque test is canceled. The synchronous motor 10 flips the test table 11, the extrusion seat 20 moves below the bolt mounting seat 9, the hydraulic telescopic cylinder 5 moves downward to insert the bolt into the extrusion seat 20, and extrusion pressure is applied. The lower pressure sensor 21 detects the bolt's critical fracture value. When performing a shear force test on the bolt, after the bolt is tightened in the screw hole plate 14, the upper hydraulic push rod 22 pushes the bolt mounting seat 9 to move, and the bolt mounting seat 9 moves along the guide block 8. The upper pressure sensor 23 tests the bolt's critical shear force value. Various forms of testing can be performed on the bolt sample.

[0036] 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 bolt fastener detection device comprising a support seat (1), characterized in that: The support base (1) has auxiliary seats (2) on both sides of its top. A guide rod (3) is fixedly connected to the top of the auxiliary seat (2). A load-bearing seat (4) is fixedly connected to the top of the guide rod (3). A hydraulic telescopic cylinder (5) is provided at the bottom of the load-bearing seat (4). An installation plate (6) is fixedly connected to the bottom of the hydraulic telescopic cylinder (5). A moving groove (7) is opened at the bottom of the installation plate (6). A guide block (8) is provided at the top of the inner wall of the moving groove (7). A bolt mounting seat (9) is slidably connected to the bottom of the guide block (8). The auxiliary seat (2) has a side A synchronous motor (10) is provided at the front. A test bench (11) is fixedly connected to the output end of the synchronous motor (10). A hydraulic motor (12) is embedded on one side of the bottom of the test bench (11). A torque sensor (121) is provided at the output end of the hydraulic motor (12). A drive gear (13) is provided at one end of the torque sensor (121). A screw hole disk (14) is rotatably connected to the bottom of the test bench (11). A driven gear disk (15) is provided on the bottom side of the screw hole disk (14). The driven gear disk (15) meshes with the drive gear (13).

2. The bolt fastener testing device according to claim 1, characterized in that: The test platform (11) has limit grooves (16) at the top and bottom corners. The test platform (11) has a storage groove (17) at the top and bottom of one side. A synchronous hydraulic rod (18) is provided on one side of the inner wall of the storage groove (17). One end of the synchronous hydraulic rod (18) is fixedly connected to an arc-shaped plug (19). Both ends of the arc-shaped plug (19) are inserted and connected to the limit groove (16).

3. The bolt fastener testing device according to claim 1, characterized in that: The test bench (11) is fitted with a compression seat (20) at the top, and a pressure sensor (21) is provided at the bottom of the inner wall of the compression seat (20).

4. The bolt fastener testing device according to claim 1, characterized in that: The movable groove (7) is provided with an upper hydraulic push rod (22) on one side. One end of the upper hydraulic push rod (22) is fixedly connected to one side of the bolt mounting seat (9). An upper pressure sensor (23) is provided between the upper hydraulic push rod (22) and the bolt mounting seat (9).

5. The bolt fastener testing device according to claim 1, characterized in that: A damping buffer (24) is fixedly connected to the other side of the moving groove (7), and the other end of the damping buffer (24) is fixedly connected to the other side of the bolt mounting seat (9).

6. The bolt fastener testing device according to claim 1, characterized in that: The mounting plate (6) has sleeves (25) embedded on both sides, and the sleeves (25) are slidably connected to the outer wall of the guide rod (3).

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