Multi-layer stacked protective cover for feed shaft of numerical control machine tool

Abstract

The utility model discloses a multi-layer stacked protective cover for a feed shaft of a numerical control machine tool, and relates to the technical field of protective devices of numerical control machine tools. The multi-layer stacked protective cover of the numerical control machine tool feed shaft comprises a positioning unit and a protective cover body, the protective cover body is connected to the outer side of the positioning unit in a sleeving mode and comprises a fixed cover body, a connecting cover body and a movable cover body, and an inner clamping ring is arranged on the inner side of the fixed cover body; the connecting cover is inserted into the inner side of the fixed cover; the movable cover is inserted into the inner side of the connecting cover, and an outer clamping ring is arranged on the outer side of the movable cover. According to the multi-layer stacked protective cover for the feeding shaft of the numerical control machine tool, the protective cover is arranged, the fixed cover is connected with the connecting cover in a sleeving mode, the movable cover is connected in a sleeving mode, combined installation of the protective cover is achieved, when one stage is damaged, independent replacement can be achieved, and the use cost is saved; and the protective cover is of a telescopic structure and can be made of hard and wear-resistant materials, so that the service life of the multi-layer stacked protective cover is prolonged, and the maintenance frequency is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to numerical control machine tool protection device technical field, concretely is a kind of multilayer superimposed protective cover of numerical control machine tool feed shaft. BACKGROUND

[0002] The feed shaft of numerical control machine tool is easily eroded by cutting fluid, chip, dust and other pollutants during processing process, and the traditional protective cover is mostly corrugated pipe structure, and the protective effect is limited and easy to wear.

[0003] The protective cover of corrugated pipe structure is generally soft, and when the use size is too long, improper installation position can cause the protective cover to rub with guide rail, so auxiliary device is needed to fix, causing installation difficulty;Long-term use can cause material aging and structural cracking, resulting in insufficient sealing of protective cover;Once damaged, the whole protective cover needs to be replaced, resulting in increased use cost.

[0004] The protective cover of corrugated pipe structure is not properly installed, which can cause the protective cover to rub with the guide rail, so auxiliary device is needed to fix, causing installation difficulty;The protective cover of corrugated pipe structure is prone to material aging and structural cracking, resulting in insufficient sealing;The protective cover of corrugated pipe structure needs to be replaced as a whole, resulting in increased use cost. SUMMARY

[0005] In view of the deficiencies of the prior art, the utility model provides a kind of multilayer superimposed protective cover of numerical control machine tool feed shaft, solve the protective cover of corrugated pipe structure, improper installation can cause the protective cover to rub with guide rail, so auxiliary device is needed to fix, causing installation difficulty;The protective cover of corrugated pipe structure is prone to material aging and structural cracking, resulting in insufficient sealing;The protective cover of corrugated pipe structure needs to be replaced as a whole, resulting in increased use cost.

[0006] To achieve the above purpose, the utility model is realized by the following technical scheme: a kind of multilayer superimposed protective cover of numerical control machine tool feed shaft, including positioning unit and protective cover, the protective cover is sleeved on the outside of positioning unit, and the protective cover includes:

[0007] Fixed cover, the inner side of the fixed cover is provided with inner snap ring;

[0008] Connecting cover, the connecting cover is inserted in the inner side of fixed cover;

[0009] Moving cover, the moving cover is inserted in the inner side of connecting cover, and the outer side of the moving cover is provided with outer snap ring.

[0010] Preferably, the positioning unit is provided with fixed plate and sliding block, the inner side of the fixed plate is connected with sliding rail, the other end of the sliding rail is connected with connecting plate, and the outer side of the connecting plate is provided with positioning screw hole.

[0011] Preferably, the sliding block is provided with a sliding groove on the outer side, the sliding groove is connected on the outer side of the sliding rail, a motor is inserted on the inner side of the sliding block, a feed shaft is connected to the output end of the motor, the feed shaft is inserted in the connecting plate on the inner side and located in the middle of the positioning screw hole, and the feed shaft is inserted in the inner side of the moving cover.

[0012] Preferably, the fixed cover is connected with a fixed ring on the outer side, a fixed bolt is inserted in the fixed ring and inserted in the inner side of the positioning screw hole.

[0013] Preferably, the connecting cover is provided with an outer ring on the outer side, the outer ring is abutted on the inner side of the fixed cover and can be connected with the inner clamping ring, the connecting cover is provided with an inner clamping ring on the inner side, the inner clamping ring is abutted on the outer side of the moving cover and can be connected with the outer clamping ring.

[0014] Preferably, the moving cover is provided with a positioning ring on the outer side, a positioning bolt is inserted in the positioning ring and abutted on the outer side of the feed shaft.

[0015] Preferably, the moving cover is provided with a connecting spring on the inner and outer sides, the connecting spring is connected with the inner clamping ring and the outer clamping ring and the inner clamping ring and the outer clamping ring, respectively.

[0016] The utility model discloses a kind of multi-layer superimposed protective cover of numerical control machine tool feed shaft, it has the beneficial effects as follows: protective cover is provided, fixed cover sleeve connection cover and sleeve moving cover, the combination installation of protective cover is realized, when damage appears in one of them, it can be replaced alone, save use cost;And protective cover is set to telescopic structure, can be made using hard wear-resistant material, improve the service life of this multi-layer superimposed protective cover, reduce maintenance frequency. ACCURACY OF DRAWINGS

[0017] In order to more clearly illustrate the technical scheme in the embodiment of the utility model or prior art, the drawings needed to be used in the embodiment or prior art description will be simply introduced below, and obviously, the drawings in the following description are only some embodiments of the utility model, and for those skilled in the art, other drawings can be obtained according to these drawings without creating labor.

[0018] Figure 1 It is the whole structure schematic diagram of the utility model;

[0019] Figure 2 It is the structure schematic diagram of the positioning unit of the utility model;

[0020] Figure 3 It is the structure schematic diagram of the protective cover of the utility model;

[0021] Figure 4The utility model discloses a cross section structure schematic diagram of protective cover.

[0022] In the figure: 1, positioning unit;11, fixed plate;111, slide rail;112, connecting plate;113, positioning screw hole;12, sliding block;121, slide groove;122, motor;123, feed shaft;2, protective cover;21, fixed cover;211, fixed ring;212, fixed bolt;213, inner snap ring;22, connecting cover;221, external connecting ring;222, inner connecting ring;23, moving cover;231, outer snap ring;24, positioning ring;241, positioning bolt;25, connecting spring. DETAILED DESCRIPTION

[0023] In order to make the utility model embodiment purposes, technical scheme and advantage more clearly, to the technical scheme in the utility model embodiment, clear, complete, obviously, the described embodiment is a part of the embodiment of the utility model, rather than all the embodiment. Based on the embodiment in the utility model, all other embodiments obtained by the ordinary skill in the art without making creative labor are within the scope of the utility model protection.

[0024] The embodiment of the application provides a multi-layer superimposed protective cover of a feed shaft of a numerical control machine tool, solves the problems that the protective cover with a bellows structure is difficult to install, needs an auxiliary device for fixing, is difficult to install, the protective cover with the bellows structure is prone to material aging and structural cracking, and the protective cover with the bellows structure needs to be replaced as a whole, and the use cost is increased, and the multi-layer superimposed protective cover is convenient to install, can be replaced in sections, and use cost is saved.

[0025] The utility model discloses a kind of multi-layer superimposed protective cover of numerical control machine tool feed shaft.

[0026] Embodiment one

[0027] According to the accompanying Figures 1-4 As shown, including positioning unit 1 and protective cover 2, protective cover 2 is sleeved on the outside of positioning unit 1, and protective cover 2 includes:

[0028] Fixed cover 21, the inner side of fixed cover 21 is provided with inner snap ring 213;

[0029] Connecting cover 22, connecting cover 22 is inserted in the inner side of fixed cover 21;

[0030] Moving cover 23, moving cover 23 is inserted in the inner side of connecting cover 22, and the outer side of moving cover 23 is provided with outer snap ring 231.

[0031] The protective cover 2 is provided with a fixed cover 21, a connecting cover 22 and a movable cover 23 which are sleeved and connected, so that the combined installation of the protective cover 2 is realized, and when one level is damaged, it can be replaced alone, thereby saving the use cost; and the protective cover 2 is provided with a telescopic structure, and can be made of hard and wear-resistant materials, thereby prolonging the service life of the multi-layer superimposed protective cover and reducing the maintenance frequency.

[0032] Further, the positioning unit 1 is provided with a fixed plate 11 and a sliding block 12, the inner side of the fixed plate 11 is connected with a sliding rail 111, the other end of the sliding rail 111 is connected with a connecting plate 112, and the outer side of the connecting plate 112 is provided with a positioning screw hole 113.

[0033] Further, the outer side of the sliding block 12 is provided with a sliding groove 121 which is clamped on the outer side of the sliding rail 111, the inner side of the sliding block 12 is inserted with a motor 122, the output end of the motor 122 is connected with a feed shaft 123, the feed shaft 123 is inserted in the inner side of the connecting plate 112 and located in the middle of the positioning screw hole 113, and the feed shaft 123 is inserted in the inner side of the movable cover 23.

[0034] In particular, the outer side of the fixed cover 21 is connected with a fixed ring 211, the fixed ring 211 is inserted with a fixed screw 212 which penetrates the fixed ring 211 and is inserted in the inner side of the positioning screw hole 113.

[0035] In particular, the outer side of the connecting cover 22 is provided with an external ring 221 which abuts against the inner side of the fixed cover 21 and can be clamped with the inner clamping ring 213, and the inner side of the connecting cover 22 is provided with an inner clamping ring 222 which abuts against the outer side of the movable cover 23 and can be clamped with the outer clamping ring 231.

[0036] Need to be emphasized, the outer side of the movable cover 23 is sleeved with a positioning ring 24, the positioning ring 24 is inserted with a positioning screw 241 which penetrates the positioning ring 24 and the movable cover 23 and abuts against the outer side of the feed shaft 123.

[0037] Embodiment two

[0038] It comprises a positioning unit 1 and a protective cover 2, the protective cover 2 is sleeved on the outer side of the positioning unit 1, and the protective cover 2 comprises:

[0039] The fixed cover 21 is provided with an inner clamping ring 213 on the inner side thereof;

[0040] The connecting cover 22 is inserted in the inner side of the fixed cover 21;

[0041] The movable cover 23 is inserted in the inner side of the connecting cover 22, and the movable cover 23 is provided with an outer clamping ring 231 on the outer side thereof.

[0042] It needs to be emphasized that the connecting spring 25 is arranged on both the inner and outer sides of the moving cover 23, and the connecting spring 25 is connected with the inner clamping ring 213 and the outer connecting ring 221 and the inner connecting ring 222 and the outer clamping ring 231 respectively.

[0043] Working principle: the protective cover 2 is provided with the fixed cover 21, the connecting cover 22 and the moving cover 23 are sleeved, the combined installation of the protective cover 2 is realized, when one level is damaged, it can be replaced alone, the use cost is saved, and the protective cover 2 is arranged in a telescopic structure, can be made of hard and wear-resistant materials, the service life of the multi-layer superimposed protective cover is improved, and the maintenance frequency is reduced.

[0044] The basic principle and main features of the utility model and the advantages of the utility model are shown and described. It should be understood by the skilled in the art that the utility model is not limited by the above-mentioned embodiments, and the above-mentioned embodiments and the description in the specification are only for illustrating the principle of the utility model, and various changes and improvements of the utility model can be made without departing from the spirit and scope of the utility model, and these changes and improvements all fall within the scope of the utility model claimed. The scope of protection of the utility model is defined by the appended claims and their equivalents.

Claims

1. A multi-layer superimposed protective cover for a feed axis of a numerically controlled machine tool, comprising a positioning unit (1) and a protective cover (2) which is fitted outside the positioning unit (1), characterized in that, The protective cover (2) comprises: A fixed cover (21) is provided with an inner clamping ring (213) on the inner side; A connecting cover (22) is inserted into the inner side of the fixed cover (21); A moving cover (23) is inserted into the inner side of the connecting cover (22), and the outer side of the moving cover (23) is provided with an outer clamping ring (231).

2. A multi-layered superimposed protective cover for a feed axis of a numerically controlled machine tool according to claim 1, characterized in that, The positioning unit (1) is provided with a fixed plate (11) and a sliding block (12), the inner side of the fixed plate (11) is connected with a sliding rail (111), the other end of the sliding rail (111) is connected with a connecting plate (112), and the outer side of the connecting plate (112) is provided with a positioning screw hole (113).

3. A multi-layered superimposed protective cover for a feed axis of a numerically controlled machine tool according to claim 2, characterized in that, The outer side of the sliding block (12) is provided with a sliding groove (121), the sliding groove (121) is clamped on the outer side of the sliding rail (111), the inner side of the sliding block (12) is inserted with a motor (122), the output end of the motor (122) is connected with a feed shaft (123), the feed shaft (123) is inserted into the inner side of the connecting plate (112) and located in the middle of the positioning screw hole (113), and the feed shaft (123) is inserted into the inner side of the moving cover (23).

4. A multi-layered stacked protective cover for a feed axis of a numerically controlled machine tool according to claim 1, characterized in that, The outer side of the fixed cover (21) is connected with a fixed ring (211), the fixed ring (211) is inserted with a fixed bolt (212), and the fixed bolt (212) penetrates through the fixed ring (211) and is inserted into the inner side of the positioning screw hole (113).

5. A multi-layered stacked protective cover for a feed axis of a numerically controlled machine tool according to claim 1, characterized in that, The outer side of the connecting cover (22) is provided with an outer connecting ring (221), the outer connecting ring (221) abuts against the inner side of the fixed cover (21) and can be clamped with the inner clamping ring (213), and the inner side of the connecting cover (22) is provided with an inner connecting ring (222), the inner connecting ring (222) abuts against the outer side of the moving cover (23) and can be clamped with the outer clamping ring (231).

6. A multi-layered stacked protective cover for a feed axis of a numerically controlled machine tool according to claim 1, characterized in that, The outer side of the moving cover (23) is sleeved with a positioning ring (24), the positioning ring (24) is inserted with a positioning bolt (241), the positioning bolt (241) penetrates through the positioning ring (24) and the moving cover (23) and abuts against the outer side of the feed shaft (123).

7. A multi-layered stacked protective cover for a feed axis of a numerically controlled machine tool according to claim 1, characterized in that, The inner and outer sides of the moving cover (23) are provided with connecting springs (25), respectively, the inner clamping ring (213) and the outer connecting ring (221), and the inner connecting ring (222) and the outer clamping ring (231).

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