Screw rod running-in equipment of numerical control programming device

Abstract

The utility model relates to the technical field of lead screw running-in, and discloses lead screw running-in equipment of a numerical control programming device, which comprises a base plate and a control box, and a running-in device is arranged above the base plate. According to the lead screw running-in equipment of the numerical control programming device, by arranging a motor, a first belt wheel, a second belt wheel, a rotating shaft, a fixed base, a rotating base, a vertical stand column, a sleeve, a running-in nut, an elastic clamping plate, a sliding rod, an H-shaped sliding block and a limiting block, the motor is started, the rotating base drives a lead screw to rotate, and the elastic clamping plate is used for clamping and positioning the bottom end of the lead screw; meanwhile, the lead screws of different specifications can be clamped and positioned, the sleeve is taken down from the sliding rod, the running-in nut is replaced, and the lead screws of different specifications are subjected to running-in; by arranging the mounting plate, the positioning piece, the screw rod, the sliding block, the sliding rail, the mounting rod and the pulley, the sliding block is positioned through the screw rod, an ejector pin on the positioning piece abuts against the top end of the lead screw, and the lead screw is kept stable when rotating.

Description

Technical Field

[0001] This utility model relates to the field of lead screw running-in technology, specifically to a lead screw running-in device with a numerically controlled programmable device. Background Technology

[0002] Ball screws are the most commonly used transmission components in machine tools and precision machinery. Running the screw in can improve its smoothness.

[0003] Chinese patent disclosure CN218847624U discloses a horizontal screw running-in machine, including a frame with supporting legs at the bottom. The frame houses a noise detector, two slide rails, a drive assembly, and an adjustment assembly. The drive assembly includes a fixed box, a support plate, a drive motor, a rotating rod A, gear A, gear B, a rotating rod B, a connecting block A, and a clamping block A. The adjustment assembly includes a fixed block, a fixed plate, a fixed sleeve, a crank handle, a rotating rod C, a threaded rod, a threaded sleeve, a connecting block B, a bearing, and a clamping block B. A screw to be tested is located between clamping blocks A and B, with a transmission nut fitted onto the screw. A sliding block is located below the transmission nut, and the sliding block is connected to the transmission nut via a connecting rod. This invention aims to solve the technical problems of inaccurate detection and inconvenient operation, providing a highly practical horizontal screw running-in machine.

[0004] However, it still has the following drawbacks: the device uses a transmission nut to move along the outer surface of the lead screw, polishing the outer surface to make the lead screw run more smoothly during use. However, the device makes it inconvenient to replace the transmission nut and to run-in different specifications of lead screws. Therefore, we propose a CNC programmable lead screw running-in device to solve this problem. Utility Model Content

[0005] The purpose of this invention is to provide a screw running-in device with a numerically controlled programmable device to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a screw running-in device with a numerically controlled programmable device, comprising a base plate and a control box, wherein a running-in device is provided above the base plate, and the running-in device includes a power unit;

[0007] The power unit includes a motor, a rotating shaft, a fixed base, a rotating base, and a vertical column. The top surface of the motor is fixedly connected to the bottom surface of the base plate. The top surface of the base plate has a through hole. The bottom end of the rotating shaft passes through the through hole and extends to the bottom of the base plate. The fixed base is rotatably sleeved on the outer surface of the rotating shaft through a first bearing. The top surface of the rotating shaft is fixedly connected to the bottom surface of the rotating base. A bottom pin is provided on the rotating shaft. The bottom surfaces of the fixed base and the vertical column are both fixedly connected to the top surface of the base plate.

[0008] A positioning part is provided above the base plate;

[0009] The positioning part includes a mounting rod, a pulley, a slider, and a slide rail. The left and right ends of the mounting rod are rotatably connected to the mounting shaft through a second bearing. The pulley is fixedly sleeved on the outer surface of the mounting shaft. The back of the slide rail is fixedly connected to the front of the vertical column. The slider is slidably sleeved on the outer surface of the slide rail.

[0010] A further improvement is that the power unit also includes a first pulley, a second pulley, a sleeve, a running-in nut, an elastic clamping plate, a sliding rod, an H-shaped slider, and a limiting block. The elastic clamping plate is provided with bolts, and the limiting block is slidably sleeved on the outer surface of the elastic clamping plate. The bottom surface of the limiting block is fixedly connected to the top surface of the rotating base. By setting the limiting slider and the elastic clamping plate, and by rotating the bolts on the elastic clamping plate, the elastic clamping plate clamps and positions the bottom of the lead screw.

[0011] A further improvement is that the first pulley is fixedly sleeved on the outer surface of the motor output shaft, and the second pulley is fixedly sleeved on the outer surface of the bottom end of the rotating shaft. By setting the first pulley, the second pulley, the motor, and the rotating shaft, the lead screw is driven to rotate.

[0012] A further improvement is that the sleeve is slidably fitted onto the outer surface of the slide rod, the outer surface of the running-in nut is fixedly connected to the outer surface of the sleeve, and the back of the slide rod is fixedly connected to the front of the H-shaped slider. Sliding the sleeve onto the outer surface of the slide rod facilitates the installation and replacement of the running-in nut.

[0013] A further improvement is that a through groove is provided on the front of the vertical column, with the top width of the through groove being greater than the bottom width. The rear end of the H-shaped slider passes through the through groove and extends to the inner side of the vertical column. The inner wall of the H-shaped slider is slidably connected to the inner wall of the vertical column. By providing the through groove, the installation and disassembly of the H-shaped slider are facilitated, and the assembly of the device is also facilitated.

[0014] A further improvement is that the positioning part also includes a counterweight, a pull rope, a hook, a mounting plate, a positioning component, and a screw. The front of the slider is fixedly connected to the back of the mounting plate, and the back of the positioning component is fixedly connected to the front of the mounting plate. A pin is provided in front of the positioning component. The screw's outer surface thread passes through the left end face of the left slider and presses against the outer surface of the left slide rail. By setting the screw, slide rail, slider, and positioning component, the screw positions the slider, and the pin on the positioning component abuts against the top of the screw, so that the screw remains stable when rotating.

[0015] A further improvement is that the bottom surface of the rear end of the pull rope is fixedly connected to the top surface of the counterweight, the bottom surface of the front end of the pull rope is fixedly connected to the outer surface of the hook, and the bottom surface of the hook is fixedly connected to the top surface of the mounting plate. By setting the counterweight, pulley, pull rope, and hook, it is easy to balance the weight of the slider, mounting plate, and positioning component, and it is easy for the positioning component to slide up and down stably.

[0016] Compared with the prior art, the beneficial effects of this utility model are as follows: The lead screw running-in device of this CNC programmable device, by setting up a motor, a first pulley, a second pulley, a rotating shaft, a fixed base, a rotating base, a vertical column, a sleeve, a running-in nut, an elastic clamping plate, a slide rod, an H-shaped slider, and a limit block, starts the motor, causing the rotating base to drive the lead screw to rotate. The elastic clamping plate clamps and positions the bottom end of the lead screw, and can clamp and position lead screws of different specifications at the same time. The sleeve is removed from the slide rod, the running-in nut is replaced, and lead screws of different specifications are run-ined. By setting up a mounting plate, a positioning component, a screw, a slider, a slide rail, a mounting rod, and a pulley, the screw positions the slider, and the pin on the positioning component abuts against the top of the lead screw, so that the lead screw remains stable when rotating. By setting up a counterweight, a pull rope, and a hook, the counterweight pulls the mounting plate and the positioning component through the pull rope, making it easy to adjust the vertical position of the positioning component. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the running-in device of this utility model;

[0018] Figure 2 This is a partial sectional view of the three-dimensional structure of the power unit of this utility model;

[0019] Figure 3 for Figure 2 Enlarged view of the structure at point A in the middle;

[0020] Figure 4 This is an exploded view of a partial structure of the running-in device of this utility model;

[0021] Figure 5 This is a partial sectional view of the three-dimensional structure of the running-in device of this utility model.

[0022] In the diagram: 1. Base plate, 2. Control box, 3. Running-in device, 31. Power unit, 32. Positioning unit, 311. Motor, 312. First pulley, 313. Second pulley, 314. Rotating shaft, 315. Fixed base, 316. Rotating base, 317. Vertical column, 318. Sleeve, 319. Running-in nut, 310. Elastic clamp, 301. Slide rod, 302. H-type slider, 303. Limiting block, 321. Counterweight, 322. Pull rope, 323. Hook, 324. Mounting plate, 325. Positioning component, 326. Screw, 327. Slide block, 328. Slide rail, 329. Mounting rod, 320. Pulley. 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 Figures 1-5 The present invention provides a technical solution: a screw running-in device with a numerically controlled programmable device, including a base plate 1 and a control box 2, a running-in device 3 is provided above the base plate 1, and the running-in device 3 includes a power unit 31;

[0025] The power unit 31 includes a motor 311, a rotating shaft 314, a fixed base 315, a rotating base 316, and a vertical column 317. The top surface of the motor 311 is fixedly connected to the bottom surface of the base plate 1. The top surface of the base plate 1 has a through hole. The bottom end of the rotating shaft 314 passes through the through hole and extends to the bottom of the base plate 1. The fixed base 315 is rotatably sleeved on the outer surface of the rotating shaft 314 through a first bearing. The top surface of the rotating shaft 314 is fixedly connected to the bottom surface of the rotating base 316. A bottom pin is provided on the rotating shaft 314. The bottom surfaces of the fixed base 315 and the vertical column 317 are both fixedly connected to the top surface of the base plate 1. The power unit 31 also includes a first pulley 312, a second pulley 313, a sleeve 318, a running-in nut 319, an elastic clamping plate 310, a slide bar 301, an H-shaped slider 302, and a limiting block 303.

[0026] Bolts are provided on the elastic clamping plate 310, and the sleeve 318 is slidably sleeved on the outer surface of the slide rod 301. The outer surface of the running nut 319 is fixedly connected to the outer surface of the sleeve 318. The back of the slide rod 301 is fixedly connected to the front of the H-shaped slider 302. A through groove is opened on the front of the vertical column 317. The top width of the through groove is greater than the bottom width. The rear end of the H-shaped slider 302 passes through the through groove and extends to the inner side of the vertical column 317. The inner wall of the H-shaped slider 302 is slidably connected to the inner wall of the vertical column 317.

[0027] The limiting block 303 is slidably sleeved on the outer surface of the elastic clamping plate 310, and the bottom surface of the limiting block 303 is fixedly connected to the top surface of the rotating base 316.

[0028] The first pulley 312 is fixedly sleeved on the outer surface of the output shaft of the motor 311, and the second pulley 313 is fixedly sleeved on the outer surface of the bottom end of the rotating shaft 314. By setting up the motor 311, the first pulley 312, the second pulley 313, the rotating shaft 314, the fixed base 315, the rotating base 316, the vertical column 317, the sleeve 318, the running-in nut 319, the elastic clamping plate 310, the slide bar 301, the H-shaped slider 302, and the limit block 303, the motor 311 is started, causing the rotating base 316 to drive the lead screw to rotate. The elastic clamping plate 310 is used to clamp and position the bottom end of the lead screw. At the same time, lead screws of different specifications can be clamped and positioned. The sleeve 318 is removed from the slide bar 301, the running-in nut 319 is replaced, and lead screws of different specifications are run-in.

[0029] A positioning part 32 is provided on the upper part of the base plate 1;

[0030] The positioning part 32 includes a mounting rod 329, a pulley 320, a slider 327, and a slide rail 328. The left and right ends of the mounting rod 329 are rotatably connected to the mounting shaft through the second bearing. The pulley 320 is fixedly sleeved on the outer surface of the mounting shaft. The back of the slide rail 328 is fixedly connected to the front of the vertical column 317. The slider 327 is slidably sleeved on the outer surface of the slide rail 328. The positioning part 32 also includes a counterweight 321, a pull rope 322, a hook 323, a mounting plate 324, a positioning component 325, and a screw 326.

[0031] The front of the slider 327 is fixedly connected to the back of the mounting plate 324, and the back of the positioning component 325 is fixedly connected to the front of the mounting plate 324. A pin is provided at the front of the positioning component 325. The screw 326 has threads on its outer surface that penetrate the left end face of the left slider 327 and press against the outer surface of the left slide rail 328. By setting the mounting plate 324, positioning component 325, screw 326, slider 327, slide rail 328, mounting rod 329 and pulley 320, the screw 326 positions the slider 327, and the pin on the positioning component 325 abuts against the top of the screw, so that the screw remains stable when rotating.

[0032] The bottom surface of the rear end of the pull rope 322 is fixedly connected to the top surface of the counterweight 321, the bottom surface of the front end of the pull rope 322 is fixedly connected to the outer surface of the hook 323, and the bottom surface of the hook 323 is fixedly connected to the top surface of the mounting plate 324. By setting the counterweight 321, the pull rope 322 and the hook 323, the counterweight 321 pulls the mounting plate 324 and the positioning component 325 through the pull rope 322, which makes it easy to adjust the up and down position of the positioning component 325.

[0033] The CNC programmable running-in device has an effective stroke of 2 meters and uses a closed servo motor. Regardless of the speed, the device automatically reverses direction after reaching the set point, preventing overtravel or undertravel. The control box system allows setting the reversal dwell time, primarily for running-in of finished products such as grinding screws and rotary milling screws, improving smoothness and reducing noise. The motor speed is infinitely adjustable, facilitating control of the screw running-in speed. In terms of safety, it is more stable and reliable than before. A start and end point are set during running-in, and the system automatically memorizes the settings in the event of a shutdown or power outage. After power is restored, the original settings will not be affected, and running-in can continue.

[0034] In use, the running-in nut 319 is fitted onto the outer surface of the lead screw. The bolts on the elastic clamp 310 are rotated to clamp the bottom end of the lead screw, bringing the bottom end of the lead screw into contact with the bottom pin on the rotating base 316. The outer surface of the elastic clamp 310 is then placed inside the limiting block 303. The mounting plate 324 and the positioning piece 325 are moved downwards, so that the bottom end of the pin in front of the positioning piece 325 abuts against the top surface of the lead screw. The screw 326 is rotated to position the slider 327, keeping the mounting plate 324 and the positioning piece 325 fixed. The motor 311 is started, driving the rotating shaft 314 to rotate through the first pulley 312 and the second pulley 313. The rotating shaft 314 drives the rotating base 316 to rotate, which in turn drives the limiting block 303, the elastic clamp 310, and the lead screw to rotate, causing the running-in nut 319 to move up and down along the outer surface of the lead screw.

[0035] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A lead screw running-in device with a numerically controlled programmable mechanism, comprising a base plate (1) and a control box (2), characterized in that: A running-in device (3) is provided above the base plate (1), and the running-in device (3) includes a power unit (31). The power unit (31) includes a motor (311), a rotating shaft (314), a fixed base (315), a rotating base (316), and a vertical column (317). The top surface of the motor (311) is fixedly connected to the bottom surface of the base plate (1). The top surface of the base plate (1) has a through hole. The bottom end of the rotating shaft (314) passes through the through hole and extends to the bottom of the base plate (1). The fixed base (315) is rotatably sleeved on the outer surface of the rotating shaft (314) through a first bearing. The top surface of the rotating shaft (314) is fixedly connected to the bottom surface of the rotating base (316). The rotating shaft (314) is provided with a bottom pin. The bottom surfaces of the fixed base (315) and the vertical column (317) are both fixedly connected to the top surface of the base plate (1). A positioning part (32) is provided above the base plate (1); The positioning part (32) includes a mounting rod (329), a pulley (320), a slider (327), and a slide rail (328). The mounting rod (329) has a mounting shaft rotatably installed on its left and right ends through a second bearing. The pulley (320) is fixedly sleeved on the outer surface of the mounting shaft. The back of the slide rail (328) is fixedly connected to the front of the vertical column (317). The slider (327) is slidably sleeved on the outer surface of the slide rail (328).

2. The lead screw running-in device with a numerically controlled programmable device according to claim 1, characterized in that: The power unit (31) also includes a first pulley (312), a second pulley (313), a sleeve (318), a running-in nut (319), an elastic clamping plate (310), a sliding rod (301), an H-shaped slider (302), and a limiting block (303). The elastic clamping plate (310) is provided with bolts, and the limiting block (303) is slidably sleeved on the outer surface of the elastic clamping plate (310). The bottom surface of the limiting block (303) is fixedly connected to the top surface of the rotating base (316).

3. The lead screw running-in device with a numerically controlled programmable device according to claim 2, characterized in that: The first pulley (312) is fixedly sleeved on the outer surface of the output shaft of the motor (311), and the second pulley (313) is fixedly sleeved on the outer surface of the bottom end of the rotating shaft (314).

4. The lead screw running-in device with a numerically controlled programmable device according to claim 2, characterized in that: The sleeve (318) is slidably sleeved on the outer surface of the slide rod (301), the outer surface of the running-in nut (319) is fixedly connected to the outer surface of the sleeve (318), and the back of the slide rod (301) is fixedly connected to the front of the H-shaped slider (302).

5. The lead screw running-in device with a numerically controlled programmable device according to claim 2, characterized in that: The vertical column (317) has a through groove on its front side. The top width of the through groove is greater than the bottom width. The rear end of the H-shaped slider (302) passes through the through groove and extends to the inside of the vertical column (317). The inner wall of the H-shaped slider (302) is slidably connected to the inner wall of the vertical column (317).

6. The lead screw running-in device with a numerically controlled programmable device according to claim 1, characterized in that: The positioning part (32) also includes a counterweight (321), a pull rope (322), a hook (323), a mounting plate (324), a positioning component (325), and a screw (326). The front of the slider (327) is fixedly connected to the back of the mounting plate (324), the back of the positioning component (325) is fixedly connected to the front of the mounting plate (324), a pin is provided in front of the positioning component (325), and the screw (326) has a thread that penetrates the left end face of the left slider (327) and presses against the outer surface of the left slide rail (328).

7. The lead screw running-in device with a numerically controlled programmable device according to claim 6, characterized in that: The bottom surface of the rear end of the pull rope (322) is fixedly connected to the top surface of the counterweight (321), the bottom surface of the front end of the pull rope (322) is fixedly connected to the outer surface of the hook (323), and the bottom surface of the hook (323) is fixedly connected to the top surface of the mounting plate (324).

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