Efficiency detection device for ball screw pair

Abstract

The utility model relates to ball screw detection technical field especially relates to a kind of efficiency detection device of ball screw pair, including detection table and pivot, the pivot is rotatably connected with the detection table, fixed component is installed on the detection table, the fixed component includes cylinder, moving plate, reset spring, fastening block, fastening spring, the cylinder is fixedly connected on the detection table, the moving plate is slidably connected in the cylinder, the reset spring is fixedly connected between the moving plate and the cylinder inner wall, the utility model cooperates with the part such as fixed cylinder, lock ring, fastening block, so that ball screw pair body is vertically installed between two fixed cylinders, guarantee the perpendicularity of ball screw pair body and detection table, so as to improve detection accuracy, simultaneously, installation angle is not needed back and forth adjustment of detection worker, installation time is saved, to improve detection efficiency.

Description

Technical Field

[0001] This utility model relates to the field of ball screw testing technology, and in particular to an efficiency testing device for ball screw pairs. Background Technology

[0002] As a commonly used transmission component in machine tools and precision machinery, the main function of ball screw pairs is to convert rotary motion into linear motion or torque into axial reciprocating force. In the production and application of ball screw pairs, efficiency is an important indicator for measuring their performance. By testing ball screw pairs with efficiency testing devices, it can be ensured that the ball screw pairs used meet the standards, thereby guaranteeing the normal operation and working accuracy of industrial equipment.

[0003] Existing ball screw pair efficiency testing devices require the screw pair to be in a vertical position and not tilted when testing it. Otherwise, the testing device will come into contact with the screw pair and generate shear stress, affecting the testing accuracy. In order to ensure the testing accuracy, the testing operator needs to constantly adjust the angle of the screw pair, which increases the testing time and reduces the testing efficiency. Utility Model Content

[0004] The purpose of this invention is to address the following shortcomings in the existing technology: When testing the efficiency of ball screw pairs, the existing ball screw pair requires that the ball screw pair be in a vertical position and not tilted. Otherwise, the contact between the testing device and the ball screw pair will generate shear stress, affecting the testing accuracy. In order to ensure the testing accuracy, the testing operator needs to constantly adjust the angle of the ball screw pair, which increases the testing time and reduces the testing efficiency. Therefore, this invention proposes a ball screw pair efficiency testing device.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] An efficiency testing device for a ball screw assembly includes a testing platform and a rotating shaft, wherein the rotating shaft is rotatably connected to the testing platform;

[0007] The testing platform is equipped with a fixing component, which includes a cylinder, a movable plate, a return spring, a fastening block, and a fastening spring. The cylinder is fixedly connected to the testing platform, the movable plate is slidably connected inside the cylinder, and the return spring is fixedly connected between the movable plate and the inner wall of the cylinder. Two fixing cylinders are installed on the testing platform, one of which is fixedly connected to the movable plate. An anti-loosening ring is fixedly connected to the outer surface of the fixing cylinder and communicates with the fixing cylinder. Both fastening blocks pass through the fixing cylinder and are slidably connected to the anti-loosening ring. The fastening spring is fixedly connected between the fixing cylinder and the inner wall of the anti-loosening ring.

[0008] Preferably, another fixed cylinder is fixedly connected to the outer surface of the testing platform. A square through hole is opened on the outer surface of the cylinder. The movable plate is slidably connected in the square through hole, and a limit plate is fixedly connected to the outer surface of the movable plate.

[0009] Preferably, a limiting groove is formed on the outer surface of the testing platform, the limiting plate is slidably connected in the limiting groove, and a plurality of locking rods are slidably connected in the limiting groove.

[0010] Preferably, all of the locking rods pass through the detection table and are slidably connected to the detection table, and the outer surface of the limiting plate is provided with locking holes.

[0011] Preferably, a pull plate is fixedly connected to the outer surface of the locking rod, and two tension springs are fixedly connected between the pull plate and the outer surface of the testing table. A handle is provided on the outer surface of the pull plate.

[0012] Preferably, a lifting plate is threadedly connected to the outer surface of the rotating shaft, the lifting plate is slidably connected to the detection table, one end of the lifting plate is provided with a detection head, and a ball screw replica is installed between the two fixed cylinders.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] 1. Through the cooperation of parts such as fixed cylinders, anti-loosening rings, and fastening blocks, the ball screw replica is vertically installed between two fixed cylinders, ensuring the perpendicularity of the ball screw replica to the testing table. This improves testing accuracy and eliminates the need for testing workers to adjust the installation angle repeatedly, saving installation time and thus increasing testing efficiency.

[0015] 2. By adjusting the locking positions of different locking rods, the installation of ball screw replicas of different lengths can be achieved. At the same time, the two fastening blocks and the fastening spring work together to fix ball screw replicas of different radii. The interaction between the two gives the fixing component an adjustable capability, thereby improving its universal applicability.

[0016] 3. The coordinated action of components such as the rotating shaft, lifting plate, and testing platform allows the testing head to move smoothly. Compared to workers manually moving the testing instrument, this greatly improves the stability of the testing process, thereby increasing testing accuracy and reducing the workload of workers. Attached Figure Description

[0017] Figure 1 This is a front structural diagram of an efficiency testing device for a ball screw assembly proposed in this utility model.

[0018] Figure 2 This is a schematic diagram of the locking rod structure of an efficiency testing device for a ball screw assembly proposed in this utility model;

[0019] Figure 3 This is a schematic diagram of the exploded cylindrical structure of an efficiency testing device for a ball screw assembly proposed in this utility model.

[0020] Figure 4 This is a schematic diagram of the internal structure of the anti-loosening ring of the efficiency testing device for ball screw pairs proposed in this utility model.

[0021] In the diagram: 1. Inspection table, 2. Rotary shaft, 3. Lifting plate, 4. Inspection head, 5. Ball screw replica, 6. Cylinder, 7. Moving plate, 8. Return spring, 9. Fixed cylinder, 10. Anti-loosening ring, 11. Fastening block, 12. Fastening spring, 13. Limiting plate, 14. Locking rod, 15. Pull plate, 16. Tension spring, 17. Locking hole. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0023] The terms used in this utility model, such as "upper", "lower", "left", "right", "middle" and "one", are only for clarity of description and are not intended to limit the scope of implementation of this utility model. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered as within the scope of implementation of this utility model.

[0024] Reference Figure 1 An efficiency testing device for a ball screw assembly includes a testing platform 1 and a rotating shaft 2. The rotating shaft 2 is rotatably connected to the testing platform 1. A motor is installed at one end of the rotating shaft 2 that passes through the testing platform 1, and the motor can drive the rotating shaft 2 to rotate. A lifting plate 3 is threadedly connected to the outer surface of the rotating shaft 2. The lifting plate 3 is slidably connected to the testing platform 1, passes through the testing platform 1, and slides on the testing platform 1. A testing head 4 is provided at one end of the lifting plate 3. The testing head 4 is existing technology and has a torque sensor and a pressure rod inside. An external electrical signal controls the pressure rod to act on the ball screw replica 5. The torque sensor transmits the signal obtained by the pressure rod to an external computer. The efficiency of the ball screw replica 5 can be obtained by the calculation of the software in the computer. By comparing with qualified data, the test result is obtained. The ball screw replica 5 is installed between two fixed cylinders 9, and the fixed cylinders 9 are hollow.

[0025] Refer to Figure 3-4The testing table 1 is equipped with fixed components, including a cylinder 6, a movable plate 7, a return spring 8, a fastening block 11, and a fastening spring 12. The cylinder 6 is fixedly connected to the testing table 1, and the movable plate 7 is slidably connected inside the cylinder 6. The movable plate 7 can only move vertically due to the action of the square through hole. The return spring 8 is fixedly connected between the movable plate 7 and the inner wall of the cylinder 6. The return spring 8 is a rigid spring with a large elastic force. Two fixed cylinders 9 are installed on the testing table 1, one of which is fixedly connected to the movable plate 7. Figure 4 As shown, a locking ring 10 is fixedly connected to the outer surface of the fixed cylinder 9. The locking ring 10 is hollow and is connected to the fixed cylinder 9. Two fastening blocks 11 pass through the fixed cylinder 9 and are slidably connected to the locking ring 10. The fastening blocks 11 are arc-shaped. The fastening spring 12 is fixedly connected between the fixed cylinder 9 and the inner wall of the locking ring 10, which can maintain the pressure of the fastening blocks 11.

[0026] Reference Figure 1 , 3 Another fixed cylinder 9 is fixedly connected to the outer surface of the testing table 1, such as... Figure 3 As shown, a square through hole is opened on the outer surface of the cylinder 6, and the movable plate 7 is slidably connected in the square through hole. A limit plate 13 is fixedly connected to the outer surface of the movable plate 7. A limit groove is opened on the outer surface of the detection table 1, and the limit plate 13 is slidably connected in the limit groove. Multiple locking rods 14 are slidably connected in the limit groove. All locking rods 14 pass through the detection table 1 and are slidably connected to the detection table 1. The locking rods 14 also pass through the limit groove. A locking hole 17 is opened on the outer surface of the limit plate 13. The radius of the locking hole 17 is slightly larger than the radius of the locking rod 14. A pull plate 15 is fixedly connected to the outer surface of the locking rod 14. Two tension springs 16 are fixedly connected between the pull plate 15 and the outer surface of the detection table 1. A handle is provided on the outer surface of the pull plate 15. A lifting plate 3 is threadedly connected to the outer surface of the rotating shaft 2. The lifting plate 3 is slidably connected to the detection table 1. A detection head 4 is provided at one end of the lifting plate 3. A ball screw replica 5 is installed between the two fixed cylinders 9.

[0027] In this invention, one end of the ball screw replica 5 is first inserted into the fixed cylinder 9 above the testing platform 1. The ball screw replica 5 will press the fastening block 11 of the fixed cylinder 9 and move it into the anti-loosening ring 10. At this time, the fastening spring 12 is in a compressed state. Under the action of the fastening spring 12, the two fastening blocks 11 tightly abut against the outer surface of the ball screw replica 5. Pulling the pull plate 15 causes the locking rod 14 to be pulled out from the locking hole 17 of the limiting plate 13. Pressing the limiting plate 13 causes the limiting plate 13 to move downward, which in turn causes the moving plate 7 to move downward. The downward movement of the moving plate 7 causes the return spring 8 to bend under force. The movement of the moving plate 7 causes the fixed cylinder 9 fixed to it to move downward. The fixed cylinder 9 moves to the lower end of the ball screw replica 5. At this time, the moving plate 7 is loosened. Under the elastic force of the return spring 8, the moving plate 7 drives the fixed cylinder 9 to move towards the lower end of the ball screw replica 5. The lower end of the ball screw replica 5 enters the fixed cylinder 9. The fastening block 11 inside the fixed cylinder 9 is tightly pressed against the ball screw replica 5 under the action of the fastening spring 12, thus completing the installation of the ball screw replica 5. This ensures that the ball screw replica 5 is vertically installed between the two fixed cylinders 9, guaranteeing the perpendicularity of the ball screw replica 5 to the testing table 1. This improves the testing accuracy and eliminates the need for the testing worker to adjust the installation angle back and forth, saving installation time and improving testing efficiency.

[0028] After the installation of the ball screw replica 5 is completed, the fixing cylinder 9 will stop the moving plate 7 in a certain position. At this time, the pull plate 15 is released, and the pull plate 15 drives the locking rod 14 to move towards the limiting plate 13. One of the locking rods 14 will enter the locking hole 17 of the limiting plate 13. Under the cooperation of the locking rod 14 and the locking hole 17, the limiting plate 13 cannot move further, thus completing the complete fixing of the fixing cylinder 9. By adjusting the locking position of different locking rods 14, the installation of ball screw replicas 5 of different lengths can be achieved. At the same time, the two fastening blocks 11 and the fastening spring 12 work together to fix ball screw replicas 5 of different radii. Under the cooperation of the two, the fixing component is given adjustability, thereby improving its universal applicability.

[0029] When the ball screw replica 5 needs to be inspected, the motor drives the rotating shaft 2 to rotate. The rotation of the rotating shaft 2 causes the lifting plate 3 to move up or down. The lifting plate 3 drives the inspection head 4 to move smoothly. Compared with the worker holding the inspection instrument by hand, this greatly improves the stability of the inspection process, thereby improving the inspection accuracy and reducing the workload of the workers.

[0030] In this utility model, unless otherwise explicitly specified and limited, the terms "installation", "connection", "linking", "fixing", etc., should be interpreted broadly.

[0031] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. An efficiency testing device for a ball screw assembly, comprising a testing platform (1) and a rotating shaft (2), characterized in that, The rotating shaft (2) is rotatably connected to the testing table (1); The testing platform (1) is equipped with a fixing component, which includes a cylinder (6), a moving plate (7), a return spring (8), a fastening block (11), and a fastening spring (12). The cylinder (6) is fixedly connected to the testing platform (1), the moving plate (7) is slidably connected inside the cylinder (6), and the return spring (8) is fixedly connected between the moving plate (7) and the inner wall of the cylinder (6). Two fixing cylinders (9) are installed on the testing platform (1), one of which is fixedly connected to the moving plate (7). An anti-loosening ring (10) is fixedly connected to the outer surface of the fixing cylinder (9), and the anti-loosening ring (10) is connected to the fixing cylinder (9). Both fastening blocks (11) pass through the fixing cylinder (9) and are slidably connected to the anti-loosening ring (10). The fastening spring (12) is fixedly connected between the fixing cylinder (9) and the inner wall of the anti-loosening ring (10).

2. The efficiency testing device for a ball screw assembly according to claim 1, characterized in that, Another fixed cylinder (9) is fixedly connected to the outer surface of the detection table (1). A square through hole is opened on the outer surface of the cylinder (6). The moving plate (7) is slidably connected in the square through hole. A limit plate (13) is fixedly connected to the outer surface of the moving plate (7).

3. The efficiency testing device for a ball screw assembly according to claim 2, characterized in that, The outer surface of the testing station (1) has a limiting groove, the limiting plate (13) is slidably connected in the limiting groove, and a plurality of locking rods (14) are slidably connected in the limiting groove.

4. The efficiency testing device for a ball screw assembly according to claim 3, characterized in that, Multiple locking rods (14) pass through the detection table (1) and are slidably connected to the detection table (1). Locking holes (17) are provided on the outer surface of the limiting plate (13).

5. The efficiency testing device for a ball screw assembly according to claim 4, characterized in that, A pull plate (15) is fixedly connected to the outer surface of the locking rod (14). Two tension springs (16) are fixedly connected between the pull plate (15) and the outer surface of the testing table (1). A handle is provided on the outer surface of the pull plate (15).

6. The efficiency testing device for a ball screw assembly according to claim 1, characterized in that, The outer surface of the rotating shaft (2) is threaded with a lifting plate (3), which is slidably connected to the detection table (1). One end of the lifting plate (3) is provided with a detection head (4), and a ball screw replica (5) is installed between the two fixed cylinders (9).

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