Balance arm preload testing machine of limiting mechanism
Through the automated load system and pressure sensor driven by servo motor, the problem of low operating efficiency of the balance arm preload tester of the limit mechanism in the prior art is solved, automatic load addition and pressure measurement are realized, and test efficiency and safety are improved. .
Patent Information
- Application Number
- CN202420533084.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-19
- Publication Date
- 2024-12-31
- Estimated Expiration
- 2034-03-19
AI Technical Summary
The existing limit mechanism balance arm preload test machine has low operating efficiency, and requires manual addition of heavy objects and measuring their mass, which causes the staff to consume a lot of physical strength and time.
A balance arm preload test machine with limiting mechanism is designed. The screw is driven to rotate by a servo motor, and the lifting plate is driven down by adjusting blocks and sliders, and the pressure is applied to the tray. Combined with the pressure sensor, the applied pressure is measured, and the automatic Add load and reduce manual operations.
Improves operating efficiency, reduces workforce strength, can automatically measure and record applied pressures, and simplifies the preload test process of the balance arm.
Smart Images
Figure CN222280306U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of testing equipment, in particular to a balance arm preload testing machine of a limiting mechanism. Background Art
[0002] The balance arm of the limit mechanism is usually used to control and support the movement of the limit mechanism to ensure that the mechanism can accurately and stably reach the required position or angle during operation and avoid damage or safety hazards caused by exceeding the design range. In order to ensure that it has good load-bearing capacity and stability in actual use and improve product quality and safety, the balance arm of the limit mechanism is usually subjected to a preload test during production.
[0003] Existing preload tests mostly use manual methods to add heavy objects one by one to the balance arm and then observe the degree of deformation of the balance arm. In this process, the mass of the heavy objects needs to be measured in advance, which is inefficient to operate. In addition, workers need to consume a lot of physical strength when moving heavy objects, which results in a large workload. Utility Model Content
[0004] In order to solve the above technical problems, a balance arm preload testing machine with a limiting mechanism is provided. The technical solution solves the problem that the existing preload test proposed in the above background technology mostly adopts manual adding of weights on the balance arm one by one and then observing the deformation degree of the balance arm. In this process, the mass of the weights needs to be measured in advance, the operation is inefficient, and the staff needs to consume a lot of physical strength when moving the weights, resulting in a large workload.
[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:
[0006] The cam is secured to the upper and lower edges of the workbench, and the cams are secured to the upper and lower edges of the workbench with a mounting groove at the front end of the bracket. A guide rod is fixedly connected to the interior of the front mounting groove, a slider is slidably connected to the outer surface of the guide rod, a screw rod is rotatably connected to the interior of the rear mounting groove, an adjusting block is threadedly connected to the outer surface of the screw rod, a connecting plate is fixedly connected between the adjusting block and the slider, a lifting plate is fixedly connected to the lower end of the connecting plate, a plurality of first connecting rods are fixedly connected to the right lower end of the lifting plate, the lower end of the first connecting rod is fixedly connected to the first fixing block, the lower end of the first fixing block is fixedly connected to a plurality of first spring dampings, and the other end of the first spring damping is fixedly connected to the first pressing block.
[0007] Preferably, a mounting base is fixedly connected to the right upper end of the workbench, and a balancing arm body is fixedly mounted on the upper end of the mounting base by bolts.
[0008] Preferably, a first tray is fixedly mounted on the end of the balancing arm body.
[0009] Preferably, a pressure sensor is provided at the left upper end of the workbench, and a second tray is provided at the upper end of the pressure sensor.
[0010] Preferably, a plurality of second connecting rods are fixedly connected to the right portion of the lower end of the lifting plate, and a second fixing block is fixedly connected to the lower end of the second connecting rod.
[0011] Preferably, a plurality of second spring dampers are fixedly connected to the lower end of the second fixing block, and a second pressing block is fixedly connected to the other end of the second spring damper.
[0012] Preferably, a servo motor is fixedly mounted on the upper end of the rear bracket, and the output end of the servo motor passes through the upper end of the rear bracket and is fixedly connected to the upper end of the screw rod.
[0013] Compared with the prior art, the utility model has the following beneficial effects:
[0014] This solution proposes a balance arm preload testing machine with a limiting mechanism, in which a servo motor drives the screw to rotate, so that the adjusting block and the slider drive the connecting plate and the lifting plate to descend, so that the first pressing block and the second pressing block simultaneously apply pressure to the first pallet and the second pallet, eliminating the need for manual lifting of heavy objects to add loads, thereby reducing the workload of the staff, and at the same time being able to measure the applied pressure through a pressure sensor, facilitating the reading and recording of data. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 It is a structural schematic diagram of the utility model.
[0016] The numbers in the figure are:
[0017] 1. Workbench; 2. Mounting base; 3. Balance arm body; 4. Bracket; 5. Mounting slot; 6. Guide rod; 7. Slider; 8. Pressure sensor; 9. Screw rod; 10. Adjustment block; 11. Servo motor; 12. Connecting plate; 13. Lifting plate; 14. First connecting rod; 15. First fixed block; 16. First spring damper; 17. First pressure block; 18. First tray; 19. Second connecting rod; 20. Second fixed block; 21. Second spring damper; 22. Second tray; 23. Second pressure block. DETAILED DESCRIPTION
[0018] The following description is used to disclose the present invention so that those skilled in the art can implement the present invention. The preferred embodiments described below are only examples, and those skilled in the art may think of other obvious variations.
[0019] Reference Figure 1As shown, a balancing arm preload testing machine of a limiting mechanism comprises a workbench 1, a mounting base 2 is fixedly connected to the upper right part of the workbench 1, a balancing arm body 3 is fixedly installed on the upper end of the mounting base 2 by bolts, a first tray 18 is fixedly installed on the end of the balancing arm body 3, two brackets 4 are fixedly connected to the upper edge of the workbench 1, a mounting groove 5 is penetrated through the front end of the bracket 4, a guide rod 6 is fixedly connected inside the front mounting groove 5, a slider 7 is slidably connected to the outer surface of the guide rod 6, a screw rod 9 is rotatably connected inside the rear mounting groove 5, an adjusting block 10 is threadedly connected to the outer surface of the screw rod 9, a connecting plate 12 is fixedly connected between the adjusting block 10 and the slider 7, a lifting plate 13 is fixedly connected to the lower end of the connecting plate 12, a plurality of first connecting rods 14 are fixedly connected to the lower right part of the lifting plate 13, and the first connecting rods 14 are fixedly connected to the lower right part of the lifting plate 13. The lower end of the rod 14 is fixedly connected to a first fixed block 15, and the lower end of the first fixed block 15 is fixedly connected to a plurality of first spring dampers 16, and the other end of the first spring damper 16 is fixedly connected to a first pressure block 17, the diameter of the first pressure block 17 is the same as the inner diameter of the first tray 18 and the first pressure block 17 is located directly above the first tray 18, and a servo motor 11 is fixedly installed on the upper end of the rear bracket 4, and the output end of the servo motor 11 passes through the upper end of the rear bracket 4 and is fixedly connected to the upper end of the screw rod 9. The servo motor 11 drives the screw rod 9 to rotate, so that the adjusting block 10 and the slider 7 can drive the connecting plate 12 and the lifting plate 13 to descend, so that the first pressure block 17 contacts the inner bottom end of the first tray 18 and applies pressure, and as the lifting plate 13 descends, the first spring damper 16 is gradually compressed, and the applied pressure gradually increases.
[0020] A plurality of second connecting rods 19 are fixedly connected to the right lower end of the lifting plate 13, a second fixed block 20 is fixedly connected to the lower end of the second connecting rod 19, a plurality of second spring dampers 21 are fixedly connected to the lower end of the second fixed block 20, a second pressure block 23 is fixedly connected to the other end of the second spring damper 21, a diameter of the second pressure block 23 is the same as that of the first pressure block 17, an initial spacing between the second pressure block 23 and the second tray 22 is the same as the initial spacing between the first pressure block 17 and the first tray 18, and the second spring damper 21 has the same elastic coefficient and damping ratio as the first spring damper 16.
[0021] A pressure sensor 8 is provided at the upper left part of the workbench 1, and a second tray 22 is provided at the upper end of the pressure sensor 8. The second tray 22 has the same size as the first tray 18. When the first pressure block 17 applies pressure to the first tray 18, the second pressure block 23 will apply the same amount of pressure to the second tray 22.
[0022] Working principle: When the device is in use, firstly, the balancing arm body 3 to be tested is installed on the mounting base 2 by bolts, and then the first pallet 18 is installed at the end of the balancing arm body 3, and the screw rod 9 is driven to rotate by the servo motor 11, so that the adjusting block 10 and the slider 7 drive the connecting plate 12 and the lifting plate 13 to descend, so that the first pressure block 17 contacts the inner bottom end of the first pallet 18 and applies pressure. During the descent of the lifting plate 13, the first spring damping 16 will be gradually compressed, and at the same time, the pressure applied by the first pressure block 17 to the first pallet 18 will gradually increase. While the first pressure block 17 applies pressure to the first pallet 18, the second pressure block 23 will apply the same pressure to the second pallet 22. The magnitude of the applied pressure can be measured by the pressure sensor 8, and the preload of the balancing arm can be obtained by observing the deformation of the balancing arm body 3 according to the magnitude of the pressure.
[0023] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and the specification only describe the principles of the utility model. The utility model may be subject to various changes and improvements without departing from the spirit and scope of the utility model. These changes and improvements fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.
Claims
1. A balance arm preload testing machine with a limit mechanism, characterized in that: The invention comprises a workbench (1), wherein two brackets (4) are fixedly connected at the upper edge of the workbench (1), a mounting groove (5) is provided through the front end of the bracket (4), a guide rod (6) is fixedly connected inside the mounting groove (5) on the front side, a slider (7) is slidably connected to the outer surface of the guide rod (6), a screw rod (9) is rotatably connected inside the mounting groove (5) on the rear side, an adjustment block (10) is threadedly connected to the outer surface of the screw rod (9), and the adjustment block (10) and the slider (7), a connecting plate (12) is fixedly connected between the connecting plate (12), a lifting plate (13) is fixedly connected to the lower end of the connecting plate (12), a plurality of first connecting rods (14) are fixedly connected to the right part of the lower end of the lifting plate (13), a first fixing block (15) is fixedly connected to the lower end of the first connecting rod (14), a plurality of first spring dampers (16) are fixedly connected to the lower end of the first fixing block (15), and a first pressing block (17) is fixedly connected to the other end of the first spring damper (16).
2. The balance arm preload testing machine of the limit mechanism according to claim 1, characterized in that: The upper right portion of the workbench (1) is fixedly connected to a mounting base (2), and the upper end of the mounting base (2) is fixedly mounted with a balancing arm body (3) via bolts.
3. The balance arm preload testing machine of the limit mechanism according to claim 2, characterized in that: A first tray (18) is fixedly mounted on the end of the balancing arm body (3).
4. The balance arm preload testing machine of the limit mechanism according to claim 1, characterized in that: A pressure sensor (8) is arranged at the left upper end of the workbench (1), and a second tray (22) is arranged at the upper end of the pressure sensor (8).
5. The balance arm preload testing machine of the limit mechanism according to claim 1, characterized in that: A plurality of second connecting rods (19) are fixedly connected to the right portion of the lower end of the lifting plate (13), and a second fixing block (20) is fixedly connected to the lower end of the second connecting rod (19).
6. The balance arm preload testing machine of the limit mechanism according to claim 5, characterized in that: A plurality of second spring dampers (21) are fixedly connected to the lower end of the second fixed block (20), and a second pressing block (23) is fixedly connected to the other end of the second spring damper (21).
7. The balance arm preload testing machine of the limit mechanism according to claim 1, characterized in that: A servo motor (11) is fixedly mounted on the upper end of the rear bracket (4), and the output end of the servo motor (11) passes through the upper end of the rear bracket (4) and is fixedly connected to the upper end of the screw rod (9).