Telescopic shield of numerical control machine tool

Abstract

The utility model discloses a telescopic protective cover of a numerical control machine tool, which relates to the technical field of numerical control machine tools and comprises a first protective cover and a protective cover positioning and guiding device. A second protective cover is slidably mounted on the surface of the first protective cover, a third protective cover is slidably mounted on the surface of the second protective cover, and six positioning sliding grooves are formed in the inner wall of the second protective cover; the protective cover positioning and guiding device comprises six positioning sliding blocks, two square sliding blocks and two guiding rods, the six positioning sliding blocks are fixedly connected to the top of the first protective cover, the six positioning sliding blocks are slidably connected to the interiors of the six positioning sliding grooves respectively, two square sliding grooves are formed in the inner wall of the second protective cover, and the two square sliding grooves are slidably connected to the interiors of the two square sliding grooves respectively. The two square sliding blocks are slidably connected to the interiors of the two square sliding grooves correspondingly, the first protective cover and the second protective cover can be stably locked even if the first protective cover and the second protective cover do not need to be wholly and completely pulled open, even if the maximum stretching distance cannot be achieved, shells of the first protective cover and the second protective cover do not shake, and the overall protective effect and the stability of the machine tool are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of numerical control machine tools, in particular to a telescopic protective cover for numerical control machine tools. Background Art

[0002] The machine tool protective cover is used to protect the machine tool guide rails. It can protect the internal hard guide rails, linear guide rails and ball screws or transmission racks of the machine tool from external corrosion and damage. Types include: accordion protective cover, steel plate protective cover, these two are used on the guide rails, and the screw protective cover used on the screw includes: round, square, polygonal, and these types have different methods, there are useful wire support type and stitching type, as well as roller shutter protective cover and armor protective cover, etc.

[0003] CNC machine tools are equipped with moving parts. The tracks and drive structures of these moving parts need to be protected to avoid contamination by iron chips and cutting fluid generated during the processing. Therefore, telescopic guards can be set on these moving parts.

[0004] The existing steel telescopic protective cover is a traditional form of protection for machine tools. In this field, steel telescopic protective covers are widely used and play an effective protective role in preventing the entry of chips and other sharp objects. However, when the telescopic protective cover is stretched and expanded, the telescopic distance between the two adjacent stretched sheet metal shells is difficult to fix. Since there is no lateral positioning device between the two adjacent stretched sheet metal shells, it is usually necessary to fully pull the whole apart before it can be stably locked. If the maximum stretching distance cannot be reached, the two adjacent stretched sheet metal shells are prone to shaking, which is not easy to affect the overall protection effect and the stability of the machine tool, and it is difficult to adapt to different length protection needs. Utility Model Content

[0005] The purpose of the present utility model is to solve at least one of the technical problems existing in the prior art and to provide a telescopic guard for a CNC machine tool, which can solve the problem that if the maximum stretching distance cannot be reached, two adjacent stretched sheet metal shells are prone to shaking, which is not easy to affect the overall protection effect and the stability of the machine tool, and it is difficult to adapt to different length protection needs.

[0006] To achieve the above-mentioned objectives, the utility model provides the following technical solutions: a telescopic guard cover for a CNC machine tool, comprising a first guard cover and a guard cover positioning and guiding device; a second guard cover is slidably mounted on the surface of the first guard cover, a third guard cover is slidably mounted on the surface of the second guard cover, and six positioning grooves are provided on the inner wall of the second guard cover; the guard cover positioning and guiding device comprises six positioning slides, two square slides and two guide rods, the six positioning slides are all fixedly connected to the top of the first guard cover, the six positioning slides are respectively slidably connected to the inside of the six positioning grooves, the inner wall of the second guard cover is provided with two square grooves, and the two square slides are respectively slidably connected to the inside of the two square grooves.

[0007] Preferably, a mounting plate is fixedly connected to the surface of the third shield, and fixing bolts are evenly installed inside the mounting plate.

[0008] Preferably, the two guide rods are respectively slidably sleeved inside the two square sliders.

[0009] Preferably, the two guide rods are fixedly connected to the inside of the two square sliding grooves respectively.

[0010] Preferably, an annular groove is provided inside the square slider.

[0011] Preferably, wear-resistant balls are installed in a circular shape at equal intervals inside the annular groove, and the wear-resistant balls are slidably connected to the surface of the guide rod.

[0012] Compared with the prior art, the beneficial effects of the present invention are:

[0013] 1. The telescopic guard of the CNC machine tool guides and limits the first guard and the second guard through the sliding action between two square sliders and two guide rods. Therefore, the first guard and the second guard no longer need to be fully stretched apart as a whole to be stably locked. Even if the maximum stretching distance cannot be reached, the first guard and the second guard shells will not shake, thereby improving the overall protection effect and the stability of the machine tool, making the telescopic guard suitable for protection needs of different lengths. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0015] Figure 1 This is a schematic diagram of the overall structure of a telescopic cover for a CNC machine tool according to the present utility model;

[0016] Figure 2 This is a schematic diagram of the front structure of a telescopic cover for a CNC machine tool according to the present invention;

[0017] Figure 3 This is a schematic diagram of the bottom structure of a telescopic cover for a CNC machine tool according to the present invention;

[0018] Figure 4 This is a schematic diagram of the cross-sectional structure of the square slider of the present utility model.

[0019] Figure numerals: 1. first guard; 2. second guard; 3. third guard; 4. mounting plate; 5. fixing bolt; 6. positioning groove; 7. positioning slider; 8. square groove; 9. square slider; 10. guide rod; 11. annular groove; 12. wear-resistant ball. DETAILED DESCRIPTION

[0020] This section will describe in detail the specific embodiments of the present invention. The preferred embodiments of the present invention are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and overall technical solution of the present invention, but it cannot be understood as a limitation on the scope of protection of the present invention.

[0021] In the description of the present invention, it should be understood that descriptions involving orientations, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on the present invention.

[0022] In the description of this utility model, terms such as "greater than," "less than," and "exceed" are understood to exclude the number indicated, while terms such as "above," "below," and "within" are understood to include the number indicated. The terms "first" and "second" are used solely to distinguish technical features and are not to be construed as indicating or implying relative importance, or as implicitly specifying the number or order of the technical features indicated.

[0023] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, and connecting should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0024] See also Figure 1-4 The utility model provides a technical solution: a telescopic guard cover of a CNC machine tool, comprising a first guard cover 1 and a guard cover positioning guide device, a second guard cover 2 is slidably mounted on the surface of the first guard cover 1, a third guard cover 3 is slidably mounted on the surface of the second guard cover 2, a mounting clamping plate 4 is fixedly connected to the surface of the third guard cover 3, fixing bolts 5 are evenly mounted on the inside of the mounting clamping plate 4, and six positioning slots 6 are opened on the inner wall of the second guard cover 2.

[0025] When the telescopic shield is in use, the staff can fix the mounting plate 4 and the third shield 3 on the CNC machine tool through multiple fixing bolts 5. When it needs to be moved, the third shield 3 can slide on the surface of the second shield 2. When the third shield 3 slides to the lower end, it can drive the second shield 2 to slide on the surface of the first shield 1, thereby merging the first shield 1, the second shield 2, and the third shield 3 together.

[0026] The guard shield positioning and guiding device includes six positioning sliders 7, two square sliders 9 and two guide rods 10. The six positioning sliders 7 are fixedly connected to the top of the first guard shield 1. The six positioning sliders 7 are respectively slidably connected to the inside of the six positioning slides 6. The inner wall of the second guard shield 2 is provided with two square slides 8. The two square sliders 9 are respectively slidably connected to the inside of the two square slides 8. The two guide rods 10 are respectively slidably sleeved on the inside of the two square sliders 9. The two guide rods 10 are respectively fixedly connected to the inside of the two square slides 8.

[0027] When the second guard cover 2 slides on the surface of the first guard cover 1, the second guard cover 2 can drive the two guide rods 10 to slide on the surfaces of the two square sliders 9, and make the two square sliders 9 slide inside the two square slide grooves 8. During the sliding process of the second guard cover 2, the six positioning sliders 7 can also slide inside the six positioning slide grooves 6. At this time, the second guard cover 2 and the first guard cover 1 can be laterally limited and fixed by the clamping action of the six positioning sliders 7 and the six positioning slide grooves 6, and the first guard cover 1 and the second guard cover 2 can be guided and limited by the sliding action between the two square sliders 9 and the two guide rods 10. Therefore, the first guard cover 1 and the second guard cover 2 no longer need to be fully pulled apart as a whole and can be stably locked. Even if the maximum stretching distance cannot be reached, the shells of the first guard cover 1 and the second guard cover 2 will not shake, thereby improving the overall protection effect and the stability of the machine tool, making the telescopic guard cover suitable for protection needs of different lengths.

[0028] An annular groove 11 is provided inside the square slider 9 . Wear-resistant balls 12 are installed in a circular pattern at equal intervals inside the annular groove 11 . The wear-resistant balls 12 are slidably connected to the surface of the guide rod 10 .

[0029] During the sliding process of the square slider 9 on the surface of the guide rod 10, the square slider 9 can drive the wear-resistant ball 12 to slide on the surface of the guide rod 10 through the annular groove 11. At this time, the wear-resistant ball 12 rolls due to the friction between the guide rod 10, thereby allowing the square slider 9 to roll and move on the surface of the guide rod 10, thereby improving the smoothness of the movement of the square slider 9 on the surface of the guide rod 10, ensuring that the square slider 9 can slide stably on the surface of the guide rod 10, thereby improving the smoothness of the opening and closing of the telescopic shield, and preventing the telescopic shield from getting stuck and damaged during use.

[0030] Working principle: The telescopic guard cover of the CNC machine tool can slide on the surface of the second guard cover 2 when it needs to move. After the third guard cover 3 slides to the lower end, it can drive the second guard cover 2 to slide on the surface of the first guard cover 1, and then merge the first guard cover 1, the second guard cover 2, and the third guard cover 3 together. The second guard cover 2 can drive the two guide rods 10 to slide on the surface of the two square sliders 9, and make the two square sliders 9 slide inside the two square slide grooves 8. During the sliding process of the second guard cover 2, the six positioning sliders 7 can also slide inside the six positioning slide grooves 6. At this time, the second guard cover 2 and the first guard cover can be clamped together by the six positioning sliders 7 and the six positioning slide grooves 6. 1 is laterally limited and fixed, and the first guard 1 and the second guard 2 are guided and limited by the sliding action between the two square sliders 9 and the two guide rods 10. Therefore, the first guard 1 and the second guard 2 no longer need to be completely pulled apart as a whole and can be stably locked. The square slider 9 can drive the wear-resistant ball 12 to slide on the surface of the guide rod 10 through the annular groove 11. At this time, the wear-resistant ball 12 rolls due to the friction between the guide rod 10, thereby allowing the square slider 9 to roll and move on the surface of the guide rod 10, improving the smoothness of the movement of the square slider 9 on the surface of the guide rod 10, ensuring that the square slider 9 can slide stably on the surface of the guide rod 10, and thus improving the smoothness of the opening and closing of the telescopic guard.

[0031] The embodiments of the present invention are described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Various changes can be made within the scope of knowledge possessed by ordinary technicians in the technical field without departing from the purpose of the present invention.

Claims

1. A telescopic cover for a CNC machine tool, characterized in that: include: A first shield (1) and a shield positioning guide device; A second shield (2) is slidably mounted on the surface of the first shield (1), a third shield (3) is slidably mounted on the surface of the second shield (2), and six positioning slots (6) are provided on the inner wall of the second shield (2); The shield positioning guide device comprises six positioning sliders (7), two square sliders (9) and two guide rods (10). The six positioning sliders (7) are fixedly connected to the top of the first shield (1). The six positioning sliders (7) are respectively slidably connected to the inside of six positioning chute (6). The inner wall of the second shield (2) is provided with two square chute (8), and the two square sliders (9) are respectively slidably connected to the inside of the two square chute (8).

2. The telescopic cover for a CNC machine tool according to claim 1, characterized in that: A mounting clamp (4) is fixedly connected to the surface of the third shield (3), and fixing bolts (5) are evenly installed inside the mounting clamp (4).

3. The telescopic cover for a CNC machine tool according to claim 1, characterized in that: The two guide rods (10) are respectively slidably sleeved inside the two square slide blocks (9).

4. The telescopic cover for a CNC machine tool according to claim 3, characterized in that: The two guide rods (10) are respectively fixedly connected inside the two square slide grooves (8).

5. The telescopic cover for a CNC machine tool according to claim 4, characterized in that: An annular groove (11) is provided inside the square slider (9).

6. The telescopic cover for a CNC machine tool according to claim 5, characterized in that: Wear-resistant balls (12) are installed in a circular shape and at equal intervals inside the annular groove (11), and the wear-resistant balls (12) are slidably connected to the surface of the guide rod (10).

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