A multifunctional running-in machine for screw detection

Abstract

The application discloses a multifunctional running-in machine for screw rod detection and relates to the technical field of screw rod running-in.The multifunctional running-in machine comprises a machining box and a screw rod, the machining box is provided with a running-in mechanism and a cooling mechanism, the running-in mechanism comprises a sliding rail fixedly connected to the inner bottom wall of the machining box, the outer wall of the sliding rail is slidably connected with a sliding block, and the top of the sliding block is fixedly connected with a fixing ring.The running-in mechanism is arranged, the precision of the screw rod can be detected through the two fixing frames during movement, the fitting position of the screw rod nut and the fixing ring is adjusted through bolts, the precision of the screw rod is adjusted, the detection and running-in of the screw rod are integrated, the precision problems of the screw rod can be found and adjusted in time during the running-in of the screw rod, the efficiency and accuracy of the detection of the screw rod are greatly improved, and a powerful guarantee is provided for producing high-quality screw rod products.

Description

Technical Field

[0001] This invention belongs to the field of lead screw running-in technology, and in particular relates to a multifunctional running-in machine for lead screw detection. Background Technology

[0002] In precision mechanical transmission systems, lead screws often suffer from surface roughness, contact deviations, and uneven assembly clearances after machining and assembly. Direct use can lead to accelerated initial wear and drift in transmission accuracy. Therefore, running-in is a crucial process. Its core is to achieve surface grinding and adaptation through the relative motion of the lead screw pair under simulated low-speed, light-load, or gradually loading conditions, removing burrs, optimizing the contact interface, stabilizing transmission accuracy, and exposing potential problems early. However, existing running-in equipment suffers from limitations such as single functionality, inability to simulate complex working conditions, low efficiency due to separate running-in and testing operations, and poor versatility. There is an urgent need for multi-functional equipment that integrates multi-condition running-in, real-time testing, and rapid tooling adaptation to solve these problems. The implementation of lead screw running-in requires first assembling the lead screw and nut, then clamping and positioning it with tooling to ensure coaxiality and uniform force, and adding lubricant. Then, based on the application scenario, setting working parameters for low-speed start-up and gradual acceleration, and light-load start-up and gradual loading, running for 2-8 hours... The machine runs for hours until its performance parameters stabilize. During this process, sensors monitor data such as speed, torque, and temperature in real time. If any abnormality occurs, the machine will automatically alarm and stop. At the same time, the integrated detection module records changes in friction torque and measures positioning accuracy to ultimately determine whether the lead screw has passed the running-in test.

[0003] In the lead screw manufacturing process, traditional production methods make it difficult to integrate the precision inspection and running-in of the lead screw. In the past, inspection and running-in were often carried out separately, which was inefficient. Moreover, it was difficult to detect and adjust the precision problems of the lead screw in time during the running-in process, which affected the quality of the lead screw products and made it difficult to produce high-quality lead screw products. Secondly, it is not easy to properly cool the connection between the lead screw and the lead screw nut during the running-in process. Traditional cooling methods may not be able to effectively spray cool the connection, and the circulation of the coolant after cooling is also problematic. The filter holes are easily blocked by impurities, which affects the normal circulation of the coolant and leads to instability of the cooling system, which cannot provide reliable cooling guarantee for the high-precision running-in of the lead screw. Summary of the Invention

[0004] The purpose of this invention is to provide a multi-functional running-in machine for lead screw testing. By incorporating a running-in mechanism, the accuracy of the lead screw can be tested through two fixed frames during movement. Simultaneously, the contact position between the lead screw nut and the fixed ring is adjusted by bolts, thereby adjusting the accuracy of the lead screw through running-in. This achieves integrated testing and running-in of the lead screw, solving the problem that traditional production methods often struggle to integrate lead screw accuracy testing and running-in. Previously, testing and running-in were often performed separately, resulting in low efficiency and difficulty in timely detection and adjustment of lead screw accuracy issues during the running-in process, thus affecting the quality of the lead screw products.

[0005] To solve the above-mentioned technical problems, the present invention is achieved through the following technical solution:

[0006] This invention relates to a multi-functional running-in machine for lead screw testing, comprising a processing box and a lead screw. The processing box is equipped with a running-in mechanism and a cooling mechanism. The running-in mechanism includes a slide rail fixedly connected to the bottom wall of the processing box, a slider slidably connected to the outer wall of the slide rail, a fixing ring fixedly connected to the top of the slider, and several connecting grooves provided on both the fixing ring and the lead screw nut. Bolts are provided between the connecting grooves, and nuts are fitted on the bolts. The size of the bolts is smaller than the inner diameter of the connecting grooves, and the size of the nuts fitted on the bolts is larger than the inner diameter of the connecting grooves.

[0007] Furthermore, a fixed frame is fixedly connected to the top of the slider, and two dial indicators are fixedly connected to the fixed frame. The two dial indicators are respectively set on the top and right side of the lead screw nut.

[0008] Furthermore, a fixing plate is fixedly connected to the left side of the processing box, and a motor is fixedly connected to the right side of the fixing plate. A coupling is fixedly connected to the output end of the motor.

[0009] Furthermore, keyways are provided on the outer wall of the lead screw and the inner wall of the coupling, and the two keyways are compatible with each other.

[0010] Furthermore, a rotating shaft is rotatably passed through the right side of the processing box, a connecting shaft is slidably connected to the inner wall of the rotating shaft, a connecting block is fixedly connected to the right side of the connecting shaft, a spring is wound around the outer wall of the connecting shaft, one end of the spring is fixedly connected to the connecting block, and the other end of the spring is fixedly connected to the rotating shaft.

[0011] Furthermore, the cooling mechanism includes a processing table fixedly connected to the bottom of the processing box, and a liquid storage tank fixedly connected to the bottom of the processing table.

[0012] Furthermore, a liquid pump is fixedly connected to the liquid storage tank, a hose is fixedly connected to the output end of the liquid pump, a distributor is fixedly connected to the end of the hose away from the liquid pump, and two spray pipes are connected to the distributor.

[0013] Furthermore, a connecting plate is fixedly connected to the slider, and both spray pipes are fixedly installed on the connecting plate. The ends of the two spray pipes away from the distributor are respectively located on the top left and right sides of the lead screw nut.

[0014] Furthermore, the bottom of the processing box is provided with several filter holes, and the processing box is connected to the liquid storage tank through the several filter holes.

[0015] Furthermore, cleaning brushes are fixedly connected to both the left and right sides of the slider, and both cleaning brushes are in contact with the filter holes.

[0016] The present invention has the following beneficial effects:

[0017] 1. By incorporating a running-in mechanism, the accuracy of the lead screw can be detected through two fixed frames during movement. Simultaneously, the contact position between the lead screw nut and the fixed ring can be adjusted via bolts, thereby adjusting the lead screw's accuracy through running-in. This achieves integrated lead screw detection and running-in, enabling timely detection and adjustment of any accuracy issues during lead screw running-in. This significantly improves the efficiency and accuracy of lead screw detection, providing a strong guarantee for producing high-quality lead screw products.

[0018] 2. Equipped with a cooling mechanism, the driving pump guides the coolant from the reservoir to the distributor via a hose, and then to the left and right sides of the slider through two spray pipes. This sprays cool the connection between the lead screw and the lead screw nut. The cooled coolant is then filtered through multiple filter holes. Simultaneously, as the slider moves, it moves the connecting plate and two cleaning brushes to clean several filter holes, ensuring the filtration effect of the filter holes. This effectively prevents the filter holes from being blocked by impurities, thus ensuring the normal circulation of the coolant and guaranteeing the stable operation of the cooling system. This provides a reliable cooling guarantee for the high-precision running-in of the lead screw.

[0019] Of course, any product implementing this invention does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0020] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0022] Figure 2 This is a schematic diagram of the processing box of the present invention;

[0023] Figure 3 This is a schematic diagram of the connecting shaft of the present invention;

[0024] Figure 4 This is a schematic diagram of the slider of the present invention;

[0025] Figure 5 for Figure 2 A magnified structural diagram of point A in the middle.

[0026] The attached diagram lists the components represented by each number as follows:

[0027] 1. Machining box; 11. Machining table; 12. Liquid storage tank; 2. Running-in mechanism; 3. Cooling mechanism; 4. Lead screw;

[0028] 21. Slide rail; 22. Slider; 23. Retaining ring; 24. Lead screw nut; 25. Connecting groove; 26. Bolt; 27. Fixing frame; 28. Dial indicator; 29. ​​Fixing plate; 291. Motor; 292. Coupling; 293. Keyway; 294. Rotating shaft; 295. Connecting shaft; 296. Connecting block; 297. Spring;

[0029] 31. Liquid pump; 32. Hose; 33. Diverter; 34. Spray pipe; 35. Connecting plate; 36. Filter hole; 37. Cleaning brush. Detailed Implementation

[0030] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0031] Please see Figure 1-5As shown, this invention is a multi-functional running-in machine for lead screw testing, including a processing box 1 and a lead screw 4. The processing box 1 is equipped with a running-in mechanism 2 and a cooling mechanism 3. The running-in mechanism 2 includes a slide rail 21 fixedly connected to the inner bottom wall of the processing box 1. A slider 22 is slidably connected to the outer wall of the slide rail 21. A fixing ring 23 is fixedly connected to the top of the slider 22. The fixing ring 23 and the lead screw nut 24 are both provided with several connecting grooves 25. Bolts 26 are provided between the several connecting grooves 25. Nuts are fitted on the several bolts 26. The size of the several bolts 26 is smaller than the inner diameter of the connecting grooves 25. The size of the nuts fitted on the several bolts 26 is larger than the inner diameter of the several connecting grooves 25. A fixing frame 27 is fixedly connected to the top of the slider 22. Two dial indicators 28 are fixedly connected to the top and right side of the lead screw nut 24, respectively. A fixing plate 29 is fixedly connected to the left side of the machining box 1, and a motor 291 is fixedly connected to the right side of the fixing plate 29. A coupling 292 is fixedly connected to the output end of the motor 291. Keyways 293 are provided on the outer wall of the lead screw 4 and the inner wall of the coupling 292. The two keyways 293 are compatible. A rotating shaft 294 is rotatably connected to the right side of the machining box 1. A connecting shaft 295 is slidably connected to the inner wall of the rotating shaft 294. A connecting block 296 is fixedly connected to the right side of the connecting shaft 295. A spring 297 is wound around the outer wall of the connecting shaft 295. One end of the spring 297 is fixedly connected to the connecting block 296, and the other end of the spring 297 is fixedly connected to the rotating shaft 294.

[0032] The cooling mechanism 3 includes a processing table 11 fixedly connected to the bottom of the processing box 1, a liquid storage tank 12 fixedly connected to the bottom of the processing table 11, a liquid pump 31 fixedly connected to the liquid storage tank 12, a hose 32 fixedly connected to the output end of the liquid pump 31, a distributor 33 fixedly connected to the end of the hose 32 away from the liquid pump 31, two spray pipes 34 connected to the distributor 33, a connecting plate 35 fixedly connected to the slider 22, both spray pipes 34 fixedly mounted on the connecting plate 35, the ends of the two spray pipes 34 away from the distributor 33 respectively located on the top left and right sides of the lead screw nut 24, a number of filter holes 36 are opened at the bottom of the processing box 1, the processing box 1 is connected to the liquid storage tank 12 through the number of filter holes 36, and cleaning brushes 37 are fixedly connected to the left and right sides of the slider 22, both cleaning brushes 37 are in contact with the filter holes 36.

[0033] A specific application of this embodiment is as follows: By setting up a running-in mechanism 2, before running-in the lead screw 4, multiple lead screw nuts 24 are fixed to the fixing ring 23, and the lead screw 4 is inserted into the inner wall of the coupling 292 through the keyway 293 according to its length. The connecting block 296 is pulled, and the connecting shaft 295 is inserted into the right end of the lead screw 4 through the elastic force of the spring 297. This drives the motor 291 to rotate the lead screw 4 and the connecting shaft 295 through the coupling 292. Since the rotating shaft 294 is rotatably mounted on the right side of the machining box 1, the lead screw 4 rotates during this process. In the process, the fixed ring 23 and the slider 22 will slide back and forth on the slide rail 21. Since the lead screw 4 may have slight errors after production, the accuracy of the lead screw 4 can be detected by the two fixed frames 27 during the movement. At the same time, the contact position between the lead screw nut 24 and the fixed ring 23 can be adjusted by the bolt 26, thereby adjusting the accuracy of the lead screw 4. This realizes the integration of detection and running-in of the lead screw 4. While the lead screw 4 is running in, the accuracy problems of the lead screw 4 can be detected and adjusted in time, which greatly improves the efficiency and accuracy of the detection of the lead screw 4 and provides a strong guarantee for the production of high-quality products.

[0034] By incorporating a cooling mechanism 3, during the break-in process of the lead screw 4, thermal expansion and contraction may occur due to high-speed rotation, potentially leading to break-in errors. In this case, the liquid pump 31 can be driven to guide the coolant inside the reservoir 12 through the hose 32 to the distributor 33, and then through two spray pipes 34 to the left and right sides of the slider 22, spraying and cooling the connection between the lead screw 4 and the lead screw nut 24. The cooled coolant is then filtered through multiple filter holes 36. Simultaneously, as the slider 22 moves, it drives the connecting plate 35 and two cleaning brushes 37 to move and clean several filter holes 36, ensuring the filtration effect of the filter holes 36. This effectively prevents the filter holes 36 from being blocked by impurities, thus affecting the normal circulation of the coolant and ensuring the stable operation of the cooling system. This provides a reliable cooling guarantee for the high-precision break-in of the lead screw 4.

[0035] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0036] The preferred embodiments of the present invention disclosed above are merely illustrative of the invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the invention to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the invention, thereby enabling those skilled in the art to better understand and utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims

1. A multi-functional running-in machine for lead screw testing, characterized in that: It includes a processing box (1) and a lead screw (4), and the processing box (1) is equipped with a running-in mechanism (2) and a cooling mechanism (3). The running-in mechanism (2) includes a slide rail (21) fixedly connected to the bottom wall of the processing box (1). A slider (22) is slidably connected to the outer wall of the slide rail (21). A fixing ring (23) is fixedly connected to the top of the slider (22). Several connecting grooves (25) are provided on both the fixing ring (23) and the lead screw nut (24). Bolts (26) are provided between the several connecting grooves (25). Nuts are adapted on the several bolts (26). The size of the several bolts (26) is smaller than the inner diameter of the connecting groove (25). The size of the nuts adapted on the several bolts (26) is larger than the inner diameter of the several connecting grooves (25).

2. The multi-functional running-in machine for lead screw testing according to claim 1, characterized in that, The top of the slider (22) is fixedly connected to a fixed frame (27), and two dial indicators (28) are fixedly connected to the fixed frame (27). The two dial indicators (28) are respectively set on the top and right side of the lead screw nut (24).

3. A multi-functional running-in machine for lead screw testing according to claim 2, characterized in that, A fixing plate (29) is fixedly connected to the left side of the processing box (1), and a motor (291) is fixedly connected to the right side of the fixing plate (29). A coupling (292) is fixedly connected to the output end of the motor (291).

4. A multi-functional running-in machine for lead screw testing according to claim 3, characterized in that, The outer wall of the lead screw (4) and the inner wall of the coupling (292) are both provided with keyways (293), and the two keyways (293) are compatible with each other.

5. A multi-functional running-in machine for lead screw testing according to claim 4, characterized in that, The right side of the processing box (1) is rotatably connected to a rotating shaft (294). A connecting shaft (295) is slidably connected to the inner wall of the rotating shaft (294). A connecting block (296) is fixedly connected to the right side of the connecting shaft (295). A spring (297) is wound around the outer wall of the connecting shaft (295). One end of the spring (297) is fixedly connected to the connecting block (296), and the other end of the spring (297) is fixedly connected to the rotating shaft (294).

6. A multi-functional running-in machine for lead screw testing according to claim 1, characterized in that, The cooling mechanism (3) includes a processing table (11) fixedly connected to the bottom of the processing box (1), and a liquid storage tank (12) fixedly connected to the bottom of the processing table (11).

7. A multi-functional running-in machine for lead screw testing according to claim 6, characterized in that, A liquid pump (31) is fixedly connected to the liquid storage tank (12). A hose (32) is fixedly connected to the output end of the liquid pump (31). A distributor (33) is fixedly connected to the end of the hose (32) away from the liquid pump (31). Two spray pipes (34) are connected to the distributor (33).

8. A multi-functional running-in machine for lead screw testing according to claim 7, characterized in that, A connecting plate (35) is fixedly connected to the slider (22), and the two spray pipes (34) are fixedly installed on the connecting plate (35). The ends of the two spray pipes (34) away from the distributor (33) are respectively located on the top left and right sides of the screw nut (24).

9. A multi-functional running-in machine for lead screw testing according to claim 8, characterized in that, The bottom of the processing box (1) is provided with several filter holes (36), and the processing box (1) is connected to the liquid storage tank (12) through several filter holes (36).

10. A multi-functional running-in machine for lead screw testing according to claim 9, characterized in that, Cleaning brushes (37) are fixedly connected to both the left and right sides of the slider (22), and both cleaning brushes (37) are in contact with the filter holes (36).

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