Vibration test device

Abstract

The utility model discloses a vibration test device which comprises a test bench, the top end of the test bench is fixedly connected with a vibration table, the bottom end of the vibration table is fixedly connected with a connecting seat, the bottom end of the connecting seat is fixedly connected with a vibration machine, and the top end of the vibration table is provided with a positioning structure used for positioning a workpiece. According to the vibration test device, by arranging the fixing frame, before a test, a workpiece is placed at the top end of the vibration table, an arc-shaped plate covers the top of the workpiece, meanwhile, a positioning sleeve at the bottom of a positioning plate is inserted into an insertion groove, and then a positioning bolt penetrates through the interior of the positioning sleeve and then is rotated into a threaded sleeve; after screwing, the arc-shaped plate can be positioned through the positioning plate, the arc-shaped plate is attached to the exterior of the workpiece so that the workpiece can be effectively positioned, the positioning sleeve is attached to the interior of the inserting groove so that the stability of the arc-shaped plate can be improved, and the problem that the workpiece cannot be conveniently positioned is solved.

Description

Technical Field

[0001] This utility model relates to the technical field of vibration testing devices, specifically a vibration testing device. Background Technology

[0002] Non-metallic sheaths are important components in motors, and they require rigorous testing during processing to ensure they possess the required physical properties, thereby guaranteeing stable motor operation after installation. Vibration testing is an effective way to detect whether deformation occurs under high-frequency vibration. However, current vibration testing devices for non-metallic sheaths have some shortcomings. They cannot easily position the workpiece before testing, leading to workpiece shaking during the test and affecting test accuracy. This paper proposes a novel vibration testing device to address these issues. Summary of the Invention

[0003] The purpose of this invention is to provide a vibration testing device to solve the problem of inconvenient workpiece positioning mentioned in the background art.

[0004] To achieve the above objectives, the present invention provides the following technical solution: a vibration testing device, comprising a test bench, a vibration table fixedly connected to the top of the test bench, a connecting seat fixedly connected to the bottom of the vibration table, a vibrating machine fixedly connected to the bottom of the connecting seat, and a positioning structure for positioning the workpiece provided at the top of the vibration table.

[0005] The positioning structure includes a fixed frame. The fixed frame is fixedly connected to both sides of the top of the vibration table. An arc-shaped plate is provided at the top of the fixed frame. Positioning plates are fixedly connected to the bottom ends of both sides of the arc-shaped plate. Positioning bolts are movably connected to the top two ends of the positioning plate. Positioning sleeves are fixedly connected to the bottom two ends of the positioning plate. Slots are opened at the top two ends of the fixed frame. Threaded sleeves are fixedly connected to the bottom two ends of the inside of the fixed frame.

[0006] Preferably, the positioning bolt passes through the positioning sleeve and extends into the interior of the threaded sleeve, and the positioning bolt is threadedly connected to the threaded sleeve.

[0007] Preferably, the positioning sleeve is movably connected to the slot, and the center line of the arc plate and the center line of the positioning plate are on the same vertical plane.

[0008] Preferably, the slot is connected to the interior of the fixed frame, and the center line of the arc plate is on the same vertical plane as the center line of the vibration table.

[0009] Preferably, the top of the vibration table is provided with a movable groove, a bidirectional lead screw is movably connected inside the movable groove, threaded sleeves are movably connected to both ends of the bidirectional lead screw, a movable baffle is fixedly connected to the top of the threaded sleeves, a rotating wheel is fixedly connected to one end of the bidirectional lead screw that passes through the vibration table, and support inclined plates are fixedly connected to both sides of the top of the vibration table.

[0010] Preferably, the threaded sleeves at both ends of the bidirectional lead screw are arranged symmetrically, and the movable baffle is slidably connected to the vibration table.

[0011] Preferably, a controller is fixedly connected to one side of the top of the test bench, three sets of acceleration sensors are fixedly connected to the top of the controller, a connecting wire is fixedly connected to one side of the acceleration sensor, a protective cover is movably hinged to one side of the top of the test bench, three sets of side slots are opened on one side of the protective cover, the connecting wire passes through the side slots and is fixedly connected to the detection head, a fixing slot is opened on one side of the protective cover, and a fixing spring is fixedly connected to one side of the top of the test bench.

[0012] Preferably, the fixing spring is movably connected to the fixing slot, and the side slot is connected to the interior of the protective cover.

[0013] Compared with the prior art, the beneficial effects of this utility model are: the vibration testing device not only enables rapid positioning of the workpiece and effectively prevents workpiece displacement, but also protects the testing equipment;

[0014] By incorporating a fixed frame, positioning plate, arc-shaped plate, positioning bolt, positioning sleeve, threaded sleeve, and slot, the workpiece is placed on top of the vibration table before testing. The arc-shaped plate is then placed over the workpiece, and the positioning sleeve at the bottom of the positioning plate is inserted into the slot. The positioning bolt is then passed through the positioning sleeve and turned into the threaded sleeve. After tightening, the arc-shaped plate is positioned using the positioning plate. The arc-shaped plate, fitting against the outside of the workpiece, effectively positions it, while the positioning sleeve, fitting against the inside of the slot, improves the stability of the arc-shaped plate, thus facilitating workpiece positioning. Furthermore, by incorporating a support ramp, double-acting screw, movable baffle, movable groove, rotating wheel, and threaded sleeve, the support ramp at the top of the vibration table, after positioning the workpiece during testing, fits against both sides of the workpiece to prevent it from shaking. Then, the rotating wheel drives the bidirectional lead screw to rotate. The bidirectional lead screw drives the movable baffles at both ends to move towards the middle through the threaded sleeve plate, so that the movable baffles fit against both ends of the workpiece, which can effectively prevent the workpiece from shifting during the test. The test equipment is equipped with an acceleration sensor, controller, protective cover, detection head, fixed snap ring, fixed slot, side slot and connecting line. During the test, the protective cover is opened and the connecting line is connected to the acceleration sensor. Then, the workpiece can be tested through the detection head on one side of the connecting line. At the same time, the protective cover is reset. The protective cover covers the outside of the acceleration sensor, and the fixed snap ring on one side engages with the fixed slot to position the protective cover. Thus, the protective cover protects the acceleration sensor and controller, which can effectively protect the test equipment. Attached Figure Description

[0015] Figure 1 This is a frontal cross-sectional view of the present invention.

[0016] Figure 2 This is a top view of the fixed frame structure of this utility model;

[0017] Figure 3 For the present utility model Figure 1 Enlarged structural diagram at point A in the middle;

[0018] Figure 4 This is an enlarged front view cross-sectional schematic diagram of the protective cover of this utility model.

[0019] In the diagram: 1. Test bench; 2. Vibration table; 3. Fixed frame; 4. Positioning plate; 5. Arc plate; 6. Supporting inclined plate; 7. Positioning bolt; 8. Positioning sleeve; 9. Threaded sleeve; 10. Accelerometer; 11. Controller; 12. Protective cover; 13. Detection head; 14. Vibration machine; 15. Connecting seat; 16. Slot; 17. Two-way lead screw; 18. Movable baffle; 19. Movable groove; 20. Rotary wheel; 21. Threaded sleeve plate; 22. Fixed snap ring; 23. Fixed snap groove; 24. Side groove; 25. Connecting wire. Detailed Implementation

[0020] 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.

[0021] Example 1: Please refer to Figure 1-4 A vibration testing device includes a test bench 1, a vibration table 2 fixedly connected to the top of the test bench 1, a connecting seat 15 fixedly connected to the bottom of the vibration table 2, a vibrator 14 fixedly connected to the bottom of the connecting seat 15, and a positioning structure for positioning the workpiece provided at the top of the vibration table 2.

[0022] The positioning structure includes a fixed frame 3. The fixed frame 3 is fixedly connected to both sides of the top of the vibration table 2. An arc plate 5 is provided at the top of the fixed frame 3. Positioning plates 4 are fixedly connected to the bottom ends of both sides of the arc plate 5. Positioning bolts 7 are movably connected to the top ends of the positioning plates 4. Positioning sleeves 8 are fixedly connected to the bottom ends of the positioning plates 4. Slots 16 are opened at the top ends of the fixed frame 3. Threaded sleeves 9 are fixedly connected to the bottom ends inside the fixed frame 3.

[0023] The positioning bolt 7 passes through the positioning sleeve 8 and extends into the interior of the threaded sleeve 9, and the positioning bolt 7 is threadedly connected to the threaded sleeve 9.

[0024] The positioning sleeve 8 is movably connected to the slot 16, and the center line of the arc plate 5 and the center line of the positioning plate 4 are on the same vertical plane;

[0025] The slot 16 is connected to the interior of the fixed frame 3, and the center line of the arc plate 5 and the center line of the vibration table 2 are on the same vertical plane;

[0026] Specifically, such as Figure 1 and Figure 2 As shown, before the test, the workpiece is placed on the top of the vibration table 2, and the arc plate 5 is placed over the top of the workpiece. At the same time, the positioning sleeve 8 at the bottom of the positioning plate 4 is inserted into the slot 16. Then, the positioning bolt 7 is passed through the inside of the positioning sleeve 8 and turned into the inside of the threaded sleeve 9. After tightening, the arc plate 5 can be positioned by the positioning plate 4. The arc plate 5 is attached to the outside of the workpiece, which can effectively position the workpiece. The positioning sleeve 8 is attached to the inside of the slot 16, which can improve the stability of the arc plate 5, thus realizing convenient positioning of the workpiece.

[0027] Example 2: The top of the vibration table 2 is provided with a movable groove 19. A bidirectional lead screw 17 is movably connected inside the movable groove 19. Threaded sleeve plates 21 are movably connected to both ends of the bidirectional lead screw 17. A movable baffle 18 is fixedly connected to the top of the threaded sleeve plate 21. A rotating wheel 20 is fixedly connected to one end of the bidirectional lead screw 17 that passes through the vibration table 2. Supporting inclined plates 6 are fixedly connected to both sides of the top of the vibration table 2.

[0028] The threaded sleeves 21 at both ends of the bidirectional lead screw 17 are arranged symmetrically, and the movable baffle 18 is slidably connected to the vibration table 2.

[0029] Specifically, such as Figure 1 , Figure 2 and Figure 3 As shown, during the test, after the workpiece is positioned, the support inclined plate 6 at the top of the vibration table 2 is attached to both sides of the workpiece to prevent the workpiece from shaking. Then, the rotating wheel 20 drives the bidirectional lead screw 17 to rotate. The bidirectional lead screw 17 drives the movable baffles 18 at both ends to move towards the middle through the threaded sleeve plate 21, so that the movable baffles 18 are attached to both ends of the workpiece, which can effectively prevent the workpiece from shifting during the test.

[0030] Example 3: A controller 11 is fixedly connected to one side of the top of the test bench 1. Three sets of acceleration sensors 10 are fixedly connected to the top of the controller 11. A connecting wire 25 is fixedly connected to one side of the acceleration sensor 10. A protective cover 12 is movably hinged to one side of the top of the test bench 1. Three sets of side grooves 24 are opened on one side of the protective cover 12. The connecting wire 25 passes through the side grooves 24 and is fixedly connected to the detection head 13. A fixing slot 23 is opened on one side of the protective cover 12. A fixing spring 22 is fixedly connected to one side of the top of the test bench 1.

[0031] The fixed snap ring 22 is movably connected to the fixed snap groove 23, and the side groove 24 is connected to the interior of the protective cover 12;

[0032] Specifically, such as Figure 1 and Figure 4 As shown, during the test, the protective cover 12 is opened and the connecting wire 25 is connected to the acceleration sensor 10. Then, the workpiece can be tested through the detection head 13 on one side of the connecting wire 25. At the same time, the protective cover 12 is reset. While the protective cover 12 covers the outside of the acceleration sensor 10, the fixing spring 22 on one side engages with the fixing slot 23 to position the protective cover 12. Thus, the protective cover 12 protects the acceleration sensor 10 and the controller 11, effectively protecting the test equipment.

[0033] Working Principle: Before testing, the workpiece is placed on top of the vibration table 2, and the arc-shaped plate 5 is placed over it. Simultaneously, the positioning sleeve 8 at the bottom of the positioning plate 4 is inserted into the slot 16. Then, the positioning bolt 7 is passed through the positioning sleeve 8 and turned into the threaded sleeve 9. After tightening, the arc-shaped plate 5 is positioned by the positioning plate 4. The arc-shaped plate 5, fitting against the outside of the workpiece, effectively positions it. The positioning sleeve 8, fitting against the inside of the slot 16, improves the stability of the arc-shaped plate 5. During testing, after positioning the workpiece, the support inclined plate 6 at the top of the vibration table 2 fits against both sides of the workpiece to prevent it from shaking. Then, the workpiece is rotated... Wheel 20 drives the bidirectional lead screw 17 to rotate. The bidirectional lead screw 17 drives the movable baffles 18 at both ends to move towards the middle through the threaded sleeve plate 21. The movable baffles 18 fit against the two ends of the workpiece, which can effectively prevent the workpiece from shifting during the test. During the test, the protective cover 12 is opened and the connecting wire 25 is connected to the acceleration sensor 10. Then, the workpiece can be tested through the detection head 13 on one side of the connecting wire 25. At the same time, the protective cover 12 is reset. While the protective cover 12 covers the outside of the acceleration sensor 10, the fixing spring 22 on one side engages with the fixing slot 23 to position the protective cover 12. Thus, the protective cover 12 protects the acceleration sensor 10 and the controller 11.

Claims

1. A vibration testing apparatus, comprising a test bench (1), characterized in that: The top of the test bench (1) is fixedly connected to a vibration table (2), the bottom of the vibration table (2) is fixedly connected to a connecting seat (15), the bottom of the connecting seat (15) is fixedly connected to a vibrator (14), and the top of the vibration table (2) is provided with a positioning structure for positioning the workpiece. The positioning structure includes a fixed frame (3), and the fixed frame (3) is fixedly connected to both sides of the top of the vibration table (2). An arc plate (5) is provided at the top of the fixed frame (3). A positioning plate (4) is fixedly connected to the bottom of both sides of the arc plate (5). A positioning bolt (7) is movably connected to the top two ends of the positioning plate (4). A positioning sleeve (8) is fixedly connected to the bottom two ends of the positioning plate (4). A slot (16) is opened at the top two ends of the fixed frame (3). A threaded sleeve (9) is fixedly connected to the bottom two ends of the inside of the fixed frame (3).

2. The vibration testing device according to claim 1, characterized in that: The positioning bolt (7) passes through the positioning sleeve (8) and extends into the interior of the threaded sleeve (9), and the positioning bolt (7) is threadedly connected to the threaded sleeve (9).

3. The vibration testing device according to claim 1, characterized in that: The positioning sleeve (8) is movably connected to the slot (16), and the center line of the arc plate (5) and the center line of the positioning plate (4) are on the same vertical plane.

4. The vibration testing device according to claim 1, characterized in that: The slot (16) is connected to the interior of the fixed frame (3), and the center line of the arc plate (5) is on the same vertical plane as the center line of the vibration table (2).

5. The vibration testing device according to claim 1, characterized in that: The top of the vibration table (2) is provided with a movable groove (19), and a bidirectional lead screw (17) is movably connected inside the movable groove (19). Threaded sleeves (21) are movably connected to both ends of the bidirectional lead screw (17). A movable baffle (18) is fixedly connected to the top of the threaded sleeve (21). A rotating wheel (20) is fixedly connected to one end of the bidirectional lead screw (17) that passes through the vibration table (2). Supporting inclined plates (6) are fixedly connected to both sides of the top of the vibration table (2).

6. The vibration testing apparatus according to claim 5, characterized in that: The threaded sleeves (21) at both ends of the bidirectional lead screw (17) are arranged symmetrically, and the movable baffle (18) is slidably connected to the vibration table (2).

7. The vibration testing apparatus according to claim 1, characterized in that: A controller (11) is fixedly connected to one side of the top of the test bench (1). Three sets of acceleration sensors (10) are fixedly connected to the top of the controller (11). A connecting line (25) is fixedly connected to one side of the acceleration sensor (10). A protective cover (12) is movably hinged to one side of the top of the test bench (1). Three sets of side grooves (24) are opened on one side of the protective cover (12). The connecting line (25) passes through the side grooves (24) and is fixedly connected to the detection head (13). A fixed slot (23) is opened on one side of the protective cover (12). A fixed spring (22) is fixedly connected to one side of the top of the test bench (1).

8. The vibration testing apparatus according to claim 7, characterized in that: The fixed snap ring (22) is movably connected to the fixed snap groove (23), and the side groove (24) is connected to the interior of the protective cover (12).

Images