Running-in device for sliding lead screw nut

Abstract

The utility model discloses a running-in device for a sliding feed screw nut, which comprises a frame, a workbench, a clamping rotating mechanism and an axial limiting mechanism, the workbench, the clamping rotating mechanism and the axial limiting mechanism are arranged on the frame, the clamping rotating mechanism and the axial limiting mechanism are respectively arranged at two ends of the workbench, the workbench comprises a plurality of guide grooves and a support frame arranged on the guide grooves, and the support frame is arranged on the guide grooves. The sliding lead screw sleeved with the nut is placed on the supporting frame, one end of the sliding lead screw is clamped through the clamping rotating mechanism, and the other end of the sliding lead screw is limited through the axial limiting mechanism. The lead screw nut rotates under the action of the clamping and rotating mechanism, the nut moves close to the guide groove, and the running-in rate of the sliding lead screw and the nut is increased through multiple operations.

Description

Technical Field

[0001] The utility model belongs to the field of mechanical processing devices, and in particular relates to a running-in device for a sliding screw nut. Background Art

[0002] Sliding screw nuts are the most commonly used transmission components in machine tools and precision machinery. They are characterized by high precision, reversibility and high efficiency. During the matching process of the nut and the sliding screw, the two need to be run-in with each other. The existing technology has not yet involved a running-in device for the nut and the sliding screw. Utility Model Content

[0003] The purpose of the utility model is to solve the shortcomings of the prior art and to propose a running-in device for a sliding screw nut.

[0004] In order to achieve the above-mentioned purpose, the utility model adopts the following technical solutions: a running-in device for a sliding screw nut, used for running-in of a sliding screw and a nut, comprising a frame, a workbench, a clamping and rotating mechanism, and an axial limiting mechanism, wherein the workbench comprises a plurality of guide grooves provided on the frame, a support frame provided on the plurality of guide grooves, the sliding screw being placed in the guide groove, the nut being sleeved on the sliding screw and being in contact with the inner wall of the guide groove;

[0005] The clamping and rotating mechanism includes a pneumatic clamp, a pneumatic slip ring provided at one end of the pneumatic clamp, and a reduction motor provided at the bottom of the frame. The air outlet of the pneumatic slip ring is connected to the air inlet of the pneumatic clamp, and the rotating end of the pneumatic slip ring is fixed to the pneumatic clamp via a first sprocket. The number of the pneumatic clamp, the pneumatic slip ring and the first sprocket is several, and the pneumatic clamp is respectively provided on one end of several guide grooves. A circular ring is provided at one end of the sliding screw, and the pneumatic clamp is used to clamp the end provided with the circular ring. A slip ring bracket is also provided on the frame, and the stator ends of several pneumatic slip rings are fixed to the slip ring bracket. A second sprocket is provided on the output end of the reduction motor, and the second sprocket is connected to several first sprockets via a chain, and the sliding screw is driven to rotate by the reduction motor;

[0006] The axial limiting mechanism includes a limiting lifting plate, a sliding rail provided at the bottom end of the limiting lifting plate, and several sleeves provided on the limiting lifting plate. The limiting lifting plate is arranged on the other end of the several guide grooves, and one end of the sliding rail is fixed on the frame. A push rod cylinder is also provided on the frame. The push rod of the push rod cylinder is connected to the limiting lifting plate for controlling the translation of the limiting lifting plate. The sleeve is sleeved on the other end of the sliding screw rod.

[0007] Furthermore, the number of gears on the first sprocket is several, and the several first sprockets are wound in multiple layers, and the first sprockets at the two ends are optionally connected to the second sprocket through a chain.

[0008] Furthermore, several of the guide grooves are provided with through holes, the support frame is placed on the through holes, and a lifting cylinder is provided at the bottom end of the frame. The push rod of the lifting cylinder is connected to the support frame. When not running-in, the support frame is lifted to support the sliding screw rod; when running-in, the support frame shrinks into the through hole.

[0009] Furthermore, a plurality of groove holes are provided on the upper end of the support frame, and anti-slip pads are provided on the groove holes, and the sliding screw rod is placed on the anti-slip pads.

[0010] Furthermore, there are two slide rails, which are respectively arranged on both sides of the bottom end of the limit lifting plate and fixed to one end of the frame; there are two push rod cylinders, which are respectively placed at both ends of the frame, and the push rods are connected to the limit lifting plate.

[0011] Furthermore, the rotating end of the pneumatic slip ring is connected to the first sprocket via a flange, the mounting seat body of the pneumatic clamp is cylindrical, and the pneumatic clamp and the first sprocket are overfitted.

[0012] Furthermore, the pneumatic clamp has at least two clamping jaws, and an arc-shaped clamping opening matching the circular ring is provided on the inner side of the clamping jaws of the pneumatic clamp.

[0013] Beneficial effects:

[0014] 1. The utility model places a sliding screw with a nut on a guide groove, a circular ring is provided at one end of the sliding screw, which is fixed by a pneumatic clamp, and the other end is axially limited by a sleeve on a limit lifting plate. Since the first sprocket fixed on the outside of the pneumatic clamp is connected to the second sprocket chain on the output end of the reduction motor, the reduction motor is started, causing the sliding screw to rotate and the nut on the sliding screw to move along the guide groove. This process is repeated multiple times to improve the running-in rate of the sliding screw and the nut.

[0015] 2. The workbench of the utility model is provided with a plurality of guide grooves, which can be used for the running-in of multiple sliding screws and nuts, with high efficiency and strong practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the overall structure of a running-in device for a sliding screw nut proposed in the present invention;

[0017] Figure 2 This is a distribution diagram of transmission components of a running-in device for a sliding screw nut proposed in the present invention;

[0018] Figure 3 This is a top view of the overall structure of a running-in device for a sliding screw nut proposed in the present invention;

[0019] Legend: 10. Frame; 20. Workbench; 21. Guide groove; 22. Support frame; 23. Lifting cylinder; 30. Clamping and rotating mechanism; 31. Pneumatic gripper; 32. Pneumatic slip ring; 33. First sprocket; 34. Reducer motor; 35. Second sprocket; 36. Slip ring bracket; 37. Flange; 40. Axial limiting mechanism; 41. Limiting lifting plate; 42. Slide rail; 43. Sleeve; 44. Push rod cylinder; 50. Sliding screw; 60. Nut. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0021] Reference Figure 1-3 The utility model provides a running-in device for a sliding screw nut, which is used for running-in a sliding screw 50 and a nut 60, and includes a frame 10, a workbench 20, a clamping and rotating mechanism 30, and an axial limiting mechanism 40. The workbench 20 includes a plurality of guide grooves 21 provided on the frame 10 and a support frame 22 provided on the guide grooves 21. The sliding screw 50 is placed in the guide groove 21, and the nut 60 is sleeved on the sliding screw 50 and fits against the inner wall of the guide groove 21.

[0022] The clamping rotation mechanism 30 includes a pneumatic clamp 31, a pneumatic slip ring 32 provided on one end of the pneumatic clamp 31, and a reduction motor 34 provided at the bottom of the frame 10. The air outlet of the pneumatic slip ring 32 is connected to the air inlet of the pneumatic clamp 31. The rotating end of the pneumatic slip ring 32 is fixed to the pneumatic clamp 31 through a first sprocket 33. The number of the pneumatic clamp 31, the pneumatic slip ring 32 and the first sprocket 33 is several, and the pneumatic clamp 31 is respectively provided at several On one end of the guide groove 21, one end of the sliding screw 50 is provided with a circular ring, and the pneumatic clamp 31 is used to clamp the end provided with the circular ring. The frame 10 is also provided with a slip ring bracket 36, and the stator ends of the plurality of pneumatic slip rings 32 are fixed to the slip ring bracket 36. A second sprocket 35 is provided on the output end of the reduction motor 34, and the second sprocket 35 is connected to the plurality of first sprockets 33 by a chain, and the sliding screw 50 is driven to rotate by the reduction motor 34;

[0023] The axial limiting mechanism 40 includes a limiting lifting plate 41, a slide rail 42 provided at the bottom end of the limiting lifting plate 41, and a plurality of sleeves 43 provided on the limiting lifting plate 41. The limiting lifting plate 41 is provided on the other end of the plurality of guide grooves 21. One end of the slide rail 42 is fixed on the frame 10. A push rod cylinder 44 is also provided on the frame 10. The push rod of the push rod cylinder 44 is connected to the limiting lifting plate 41 for controlling the translation of the limiting lifting plate 41. The sleeve 43 is sleeved on the other end of the sliding screw rod 50, and the sliding screw rod 50 is axially limited by the sleeve 43.

[0024] The first sprockets 33 are wound in multiple layers, and the first sprockets 33 at either end are connected to the second sprockets 35 via chains.

[0025] The guide grooves 21 are provided with through holes, the support frame 22 is arranged on the through holes, and the bottom end of the frame 10 is provided with a lifting cylinder 23, and the push rod of the lifting cylinder 23 is connected to the support frame 22. When not running-in, the support frame 22 is lifted to support the sliding screw rod 50; when running-in, the support frame 22 is retracted into the through hole.

[0026] The upper end of the support frame 22 is provided with a plurality of groove holes, and anti-slip pads are provided on the groove holes, and the sliding screw 50 is placed on the anti-slip pads.

[0027] There are two slide rails 42, which are respectively arranged on both sides of the bottom end of the limit lifting plate 41 and fixed to one end of the frame 10; there are two push rod cylinders 44, which are respectively placed at both ends of the frame 10 and the push rods are connected to the limit lifting plate 41.

[0028] The rotating end of the pneumatic slip ring 32 is connected to the first sprocket 33 via a flange 37 . The mounting seat of the pneumatic clamp 31 is cylindrical. The pneumatic clamp 31 and the first sprocket 33 are overfitted.

[0029] The pneumatic clamp 31 has at least two clamping jaws, and an arc-shaped clamping opening matching the circular ring is provided on the inner side of the clamping jaws of the pneumatic clamp 31 .

[0030] Working principle: The sliding screw 50 is placed on the guide groove 21. When it is not run-in, the support frame 22 is lifted to support the sliding screw 50. A ring is provided at one end of the sliding screw 50, which is clamped by the pneumatic clamp 31. The limit plate is moved and the other end of the sliding screw 50 is axially limited by the sleeve; when running-in, the support frame is retracted into the through hole, and under the action of the first sprocket and the second sprocket, the reduction motor is started to rotate the sliding screw 50, and the nut 60 mounted on the sliding screw 50 moves along the guide groove 21. This process is repeated many times to improve the running-in rate of the sliding screw 50 and the nut 60.

[0031] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A running-in device for a sliding screw nut, used for running-in a sliding screw (50) and a nut (60), characterized in that: The invention comprises a frame (10), a workbench (20), a clamping and rotating mechanism (30) and an axial limiting mechanism (40); the workbench (20) comprises a plurality of guide grooves (21) provided on the frame (10), a support frame (22) provided on the plurality of guide grooves (21); the sliding screw (50) is placed in the guide groove (21); the nut (60) is sleeved on the sliding screw (50) and fits with the inner wall of the guide groove (21); The clamping rotation mechanism (30) includes a pneumatic clamp (31), a pneumatic slip ring (32) provided at one end of the pneumatic clamp (31), and a reduction motor (34) provided at the bottom of the frame (10). The air outlet of the pneumatic slip ring (32) is connected to the air inlet of the pneumatic clamp (31). The rotating end of the pneumatic slip ring (32) is fixed to the pneumatic clamp (31) via a first sprocket (33). The pneumatic clamp (31) The number of the pneumatic slip ring (32) and the first sprocket (33) is several, the pneumatic clamping claw (31) is respectively arranged on one end of the plurality of the guide grooves (21), one end of the sliding screw (50) is provided with a circular ring, the pneumatic clamping claw (31) is used to clamp the end provided with the circular ring, the frame (10) is further provided with a slip ring bracket (36), the stator ends of the plurality of the pneumatic slip rings (32) are fixed on the slip ring bracket (36), the reduction motor (34 ) is provided with a second sprocket (35) on the output end, the second sprocket (35) is connected to the plurality of the first sprockets (33) by a chain, and the sliding screw (50) is driven to rotate by the reduction motor (34); the axial limiting mechanism (40) includes a limiting lifting plate (41), a slide rail (42) provided at the bottom end of the limiting lifting plate (41), and a plurality of sleeves (43) provided on the limiting lifting plate (41), and the limiting lifting plate (41) is provided at At the other end of the plurality of guide grooves (21), one end of the slide rail (42) is fixed on the frame (10). The frame (10) is also provided with a push rod cylinder (44). The push rod of the push rod cylinder (44) is connected to the limit lifting plate (41) for controlling the translation of the limit lifting plate (41). The sleeve (43) is sleeved on the other end of the sliding screw rod (50) to limit the axial position of the sliding screw rod (50) through the sleeve (43).

2. The running-in device according to claim 1, characterized in that: There are a number of gears on the first sprocket (33), and the first sprockets (33) are wound in multiple layers. The first sprockets (33) at either end are optionally connected to the second sprocket (35) through a chain.

3. The running-in device according to claim 1, characterized in that: Through holes are provided on the plurality of guide grooves (21), and the support frame (22) is arranged on the through holes. A lifting cylinder (23) is provided at the bottom end of the frame (10), and a push rod of the lifting cylinder (23) is connected to the support frame (22). When not running-in, the support frame (22) is lifted to support the sliding screw rod (50); when running-in, the support frame (22) is retracted into the through hole.

4. The running-in device according to claim 1, characterized in that: The upper end of the support frame (22) is provided with a plurality of groove holes, and the groove holes are provided with anti-slip pads, and the sliding screw (50) is placed on the anti-slip pads.

5. The running-in device according to claim 1, characterized in that: There are two slide rails (42), which are respectively arranged on both sides of the bottom end of the limit lifting plate (41) and fixed to one end of the frame (10); there are two push rod cylinders (44), which are respectively placed at both ends of the frame (10) and the push rods are connected to the limit lifting plate (41).

6. The running-in device according to claim 1, characterized in that: The rotating end of the pneumatic slip ring (32) is connected to the first sprocket (33) via a flange (37); the mounting seat body of the pneumatic clamp (31) is cylindrical; and the pneumatic clamp (31) and the first sprocket (33) are overfitted.

7. The running-in device according to claim 1, characterized in that: The pneumatic clamp (31) has at least two clamping jaws, and an arc-shaped clamping opening matching the circular ring is provided on the inner side of the clamping jaw of the pneumatic clamp (31).

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