Ball nut polishing protection device

Abstract

The utility model discloses a ball nut polishing protection device which is characterized by comprising a device body, a plurality of ball nuts, a plurality of ball nuts and a plurality of ball nuts, and the device body is of an annular bearing steel structure; a limiting groove and a threaded mounting groove which are connected with each other are formed in the bearing steel structure; the diameter of the limiting groove is smaller than that of the thread mounting groove; a first limiting part is arranged at the tail end, close to the threaded mounting groove, of the limiting groove; a second limiting part is arranged at the tail end, far away from the limiting groove, of the threaded mounting groove; the device is arranged on an external thread of a ball nut in a sleeving mode, and the first limiting part limits the first axial end face of the external thread of the ball nut; and the second limiting part is used for limiting the second axial end surface of the external thread of the ball nut. The device can prevent grinding materials from being clamped in the external thread of the ball nut. The device is reasonable in design, simple in structure, high in surface hardness and good in wear resistance.

Description

Technical Field

[0001] The utility model relates to a polishing protection device for a ball screw nut, in particular to a polishing protection device for a ball screw nut with an external thread, which protects the external thread of the ball screw nut when polishing the ball screw nut with an external thread in a finishing machine. Background Art

[0002] At present, most machined parts will have burr residues after machining. Although the burrs are small, they directly affect the quality of the products. They not only affect the installation and positioning of subsequent processing of the products, but also affect the safety performance of the final use of the products. Therefore, the machined products must be deburred to make the surface of the products smooth and have no influence on subsequent processing or assembly.

[0003] However, during the polishing process, due to the protruding spiral grooves with different sizes on the external thread of the ball screw nut, burr cleaning needs to be carried out in the spiral grooves. Summary of the Utility Model

[0004] In order to overcome the above-mentioned defects of the prior art, the purpose of the present utility model is to provide a ball screw nut polishing protection device with less input cost, which can well protect the external thread during the finishing of the ball screw nut.

[0005] The device of the present utility model can prevent abrasives from getting stuck in the external thread of the ball screw nut. This device is reasonably designed, has a simple structure, a relatively high surface hardness and good wear resistance.

[0006] The problems solved by the present utility model can be realized by the following technical solutions:

[0007] A ball screw nut polishing protection device, comprising:

[0008] A device body, the device body being a ring-shaped bearing steel structure;

[0009] A limiting groove and a threaded installation groove are arranged inside the bearing steel structure and are connected;

[0010] The diameter of the limiting groove is smaller than the diameter of the threaded installation groove;

[0011] A first limiting part is arranged at the end of the limiting groove close to the threaded installation groove;

[0012] A second limiting part is arranged at the end of the threaded installation groove far from the limiting groove;

[0013] When the device is sleeved on the external thread of the ball screw nut, the first limiting part limits the first axial end face of the external thread of the ball screw nut;

[0014] The second limiting part limits the second axial end face of the external thread of the ball screw nut.

[0015] In a preferred embodiment of the present utility model, the second axial end face of the external thread of the ball screw nut is connected to the mounting boss of the ball screw nut.

[0016] In a preferred embodiment of the present utility model, the first limiting part is provided with a first arc transition end face.

[0017] In a preferred embodiment of the present utility model, the second limiting part is provided with a second arc transition end face.

[0018] In a preferred embodiment of the present utility model, the wall thickness range of the device body is 3 mm - 7 mm.

[0019] In a preferred embodiment of the present utility model, the radial outer peripheral surface or the axial outer peripheral surface of the device body is a smooth surface.

[0020] The beneficial effects of the present utility model are as follows:

[0021] The device of the present utility model can prevent abrasives from getting stuck in the external thread of the ball screw nut. This device has a reasonable design, a simple structure, a relatively high surface hardness and good wear resistance.

[0022] Provide a ball screw nut polishing protection device with a relatively low input cost, which can well protect the external thread during the ball screw nut finishing process. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for the description of the prior art.

[0024] Figure 1 It is a schematic structural diagram of a ball screw nut.

[0025] Figure 2 It is a schematic structural diagram of the present utility model.

[0026] Figure 3 It is a schematic diagram of the use of the present utility model Figure 1 。

[0027] Figure 4 It is a schematic diagram of the use of the present utility model Figure 2 。 DETAILED DESCRIPTION OF THE EMBODIMENTS

[0028] To make the objectives, technical solutions, and advantages of the present utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. However, it should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the scope of the present utility model. In addition, in the following structures, the descriptions of well-known structures and technologies are omitted to avoid unnecessarily confusing the concept of the present utility model.

[0029] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "inner", "outer", "top / bottom end", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present utility model and simplifying the description. Instead of indicating or implying that the device or component referred to must have a specific orientation, be constructed and operated in a specific orientation, it should not be construed as a limitation to the present utility model. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0030] As Figures 1-4 shown, a ball screw nut polishing protection device includes a device body. The device body is a ring-shaped bearing steel structure 100. The reason for using bearing steel material is that bearing steel with high hardness, good wear resistance, good dimensional stability, and corrosion resistance can withstand long-term abrasive grinding and is not corroded by the polishing liquid.

[0031] The wall thickness range of the device body is 3 mm - 7 mm.

[0032] By setting a reasonable wall thickness in the range of 3 mm - 7 mm, it will not cause premature deformation and failure due to the too thin wall thickness of the device, nor will it make the operator too laborious when screwing the thread due to the too thick wall thickness, thus affecting the production efficiency.

[0033] The radial outer peripheral surface or the axial outer peripheral surface of the device body is a smooth surface, which can avoid small abrasive particles getting stuck in the thread of the protective sleeve during the first surface finishing and not being removed in time, and damaging the thread of the nut when screwing into the nut thread next time.

[0034] A connected limit groove 110 and a threaded installation groove 120 are provided inside the bearing steel structure. The diameter of the limit groove 110 is smaller than the diameter of the threaded installation groove 120, and the groove surface of the limit groove 110 is a smooth surface. This is to facilitate the limiting function of the limit groove 110 and the installation and limiting functions of the threaded installation groove 120.

[0035] A first limiting portion 111 is provided at the end of the limit groove 110 close to the threaded installation groove 120, and a second limiting portion 121 is provided at the end of the threaded installation groove 120 far from the limit groove 110.

[0036] Put the device on the external thread 210 of the ball screw nut 200. The first limiting part 111 limits the first axial end face 211 of the external thread 210 of the ball screw nut. A first arc transition end face is provided at the first limiting part 111.

[0037] The second limiting part 121 limits the second axial end face 212 of the external thread 210 of the ball screw nut 200. The second axial end face 212 of the external thread 210 of the ball screw nut 200 is connected to the mounting boss 220 of the ball screw nut 200.

[0038] The second limiting part 121 is provided with a second arc transition end face. The arc transition design protects the edge of the device from being bumped, increasing the service life of the device.

[0039] Due to the above structure, the device of the present utility model can prevent abrasives from getting stuck in the external thread of the ball screw nut. This device has a reasonable design, a simple structure, a relatively high surface hardness and good wear resistance, providing a ball screw nut polishing protection device with less input cost that can well protect the external thread during the ball screw nut finishing process.

[0040] The above shows and describes the basic principles, main features and advantages of the utility model.

[0041] Those skilled in the art of this industry should understand that the present utility model is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principle of the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and these changes and improvements all fall within the scope of the present utility model claimed. The scope of protection claimed by the present utility model is defined by the appended claims and their equivalents.

Claims

1. A ball screw nut polishing protection device, characterized in that: include: A device body, wherein the device body is an annular bearing steel structure; A connected limiting groove and a threaded installation groove are arranged inside the bearing steel structure; The diameter of the limiting groove is smaller than the diameter of the threaded installation groove; The limiting groove is provided with a first limiting portion at the end close to the threaded installation groove; The threaded installation groove is provided with a second limiting portion at the end away from the limiting groove; The device is sleeved on the external thread of the ball screw nut, and the first limiting portion limits the first axial end face of the external thread of the ball screw nut; The second limiting portion limits the second axial end surface of the ball screw nut external thread.

2. A ball screw nut polishing protection device as claimed in claim 1, characterized in that: The second axial end surface of the ball screw nut external thread is connected to the mounting boss of the ball screw nut.

3. A ball screw nut polishing protection device as claimed in claim 1, characterized in that: The first limiting portion is provided with a first arc transition end surface.

4. A ball screw nut polishing protection device as claimed in claim 1, characterized in that: The second limiting portion is provided with a second arc transition end surface.

5. A ball screw nut polishing protection device as claimed in claim 1, characterized in that: The wall thickness of the device body ranges from 3mm to 7mm.

6. A ball screw nut polishing protection device as claimed in claim 1, characterized in that: The radial outer peripheral surface or the axial outer peripheral surface of the device body is a smooth surface.

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