Sliding door structure, protective cover and numerical control machine tool

Abstract

The utility model relates to a sliding door structure, a protective cover and a numerical control machine tool, the sliding door structure comprises a frame and a door body, the frame is provided with an opening, a first guide part and a second guide part, and the first guide part and the second guide part are distributed at intervals in the first direction and are located on the two sides of the opening in parallel. The door body is movably arranged on the frame in the second direction so as to close or open the opening, the second direction is perpendicular to the first direction, the door body is provided with a first matching part and a second matching part which are distributed in the first direction at intervals, and the first matching part and the second matching part are slidably connected with the first guide part and the second guide part in the second direction respectively. Wherein the frame and the door body are provided with a positioning piece and a positioning groove respectively, the positioning piece can be arranged in the positioning groove in a sliding mode in the second direction, and the positioning piece and the positioning groove form limiting fit for preventing the positioning piece from being separated from the positioning groove so as to prevent the door body from being separated from the frame. The protective cover comprises a cover body and a sliding door structure. The numerical control machine tool comprises a machine tool body and the protective cover.

Description

Technical Field

[0001] The utility model relates to the technical field of numerically controlled machine tools, and in particular to a sliding door structure, a protective cover and a numerically controlled machine tool. Background Art

[0002] CNC machine tools are automated machines equipped with program-controlled systems. Compared to conventional machine tools, they offer advantages such as high machining precision, high production efficiency, and consistent product quality. They are capable of machining complex surfaces that are difficult to achieve with conventional machine tools. Sliding doors are structures used to enclose or open the working areas of CNC machine tools (such as the machining area and tool magazine). They are typically located on the front or side of the machine tool, facilitating operations such as loading and unloading workpieces, changing tools, and performing maintenance on the machine's interior.

[0003] The prior art discloses a sliding door structure for a CNC machine tool, which includes a base plate, a support assembly and a sliding door. The support assembly is supported on the base plate, a guide rail is installed on the base plate, and a limiting wheel mechanism is provided on the support assembly. A moving roller that cooperates with the guide rail is installed at the bottom of the sliding door, and the top of the sliding door is connected to the limiting wheel mechanism through a roller, so that the sliding door can move in a straight line to perform closing and opening actions.

[0004] However, the sliding door and the base plate, as well as the sliding door and the supporting assembly, are connected only by rolling fit. The vibration generated by the CNC machine tool during operation, or the movement of the sliding door itself, may cause the sliding door to shake or even cause it to fall, thereby affecting the stability and safety of the sliding door movement. Utility Model Content

[0005] The purpose of the utility model is to provide a sliding door structure, a protective cover and a CNC machine tool, and the technical problem solved is: how to reduce the phenomenon of the sliding door shaking or falling.

[0006] In order to solve the above technical problems, the present utility model adopts the following technical solutions.

[0007] The utility model provides a sliding door structure, which includes: a frame, the frame is provided with an opening, a first guide part and a second guide part, the first guide part and the second guide part are spaced apart in a first direction and are located parallel to each other on both sides of the opening; a door body, the door body is movably provided on the frame along a second direction to close or open the opening, the second direction is perpendicular to the first direction, the door body is provided with a first matching part and a second matching part spaced apart in the first direction, the first matching part and the second matching part are slidably connected to the first guide part and the second guide part in the second direction respectively; wherein, a positioning member and a positioning groove are respectively provided on the frame and the door body, the positioning member can be slidably provided in the positioning groove along the second direction, the positioning member and the positioning groove form a limiting fit to prevent the positioning member from disengaging from the positioning groove, so as to prevent the door body from disengaging from the frame.

[0008] In some embodiments of the present application, the positioning groove includes a first groove wall and a second groove wall extending along the second direction and a groove bottom wall connecting the first groove wall and the second groove wall, the first groove wall and the second groove wall are spaced apart along a third direction, the third direction is perpendicular to the first direction and the second direction, and a notch is formed between the first groove wall and the second groove wall; the positioning member is provided on the door body, the positioning groove is provided on the frame and is located on the side where the first guide portion is located, the positioning member extends facing the second guide portion, and the notch is facing away from the second guide portion; or, the positioning member is provided on the frame and is located on the side where the first guide portion is located, the positioning groove is provided on the door body, the positioning member extends away from the second guide portion, and the notch faces the second guide portion.

[0009] In some embodiments of the present application, the positioning member is provided on the door body, and the positioning groove is provided on the frame and located on the side where the first guide portion is located, the positioning member is connected to the first matching portion, and the positioning groove is connected to the first guide portion; when the positioning member is provided on the frame and located on the side where the first guide portion is located, and the positioning groove is provided on the door body, the positioning member is connected to the first guide portion, and the positioning groove is connected to the first matching portion.

[0010] In some embodiments of the present application, the first guide portion is a V-shaped guide rail, and the first matching portion is a V-shaped roller.

[0011] In some embodiments of the present application, the first guide portion includes a first part and a second part that are cross-connected, and the first part, the second part, the first groove wall and the second groove wall are arranged in sequence along the third direction, and the first groove wall is connected to the second part so that the positioning groove is connected to the first guide portion; the sliding door structure also includes a connecting frame, and the connecting frame includes a first section and a second section that are bent and connected, the first section extends along the first direction and is connected to the first matching portion, and the second section extends along the third direction and is connected to the positioning member so that the positioning member is connected to the first matching portion.

[0012] In some embodiments of the present application, the door body includes a first door body and a second door body, the first door body is provided with the first matching portion at one end in the first direction, the other end of the first door body in the first direction is connected to one end of the second door body, the second door body extends along a third direction, the third direction is respectively perpendicular to the first direction and the second direction, and the second matching portion is provided on the other end of the second door body.

[0013] In some embodiments of the present application, a cylinder is provided on the frame, a cylinder bracket is provided on the door body, the cylinder corresponds to the cylinder bracket, and the cylinder is used to drive the door body to move in the second direction.

[0014] The utility model provides a protective cover, which comprises a cover body and the sliding door structure described in any one of the above embodiments, wherein a receiving cavity is provided in the cover body, the cover body is connected to the frame, and the opening is communicated with the receiving cavity.

[0015] In some embodiments of the present application, when the door body moves relative to the frame to open the opening, the door body partially moves into the accommodating cavity.

[0016] The utility model provides a numerically controlled machine tool, which comprises a machine tool body and the protective cover described in any one of the above embodiments, wherein the protective cover is installed on the machine tool body.

[0017] It can be seen from the above technical solutions that the embodiments of the present utility model have at least the following advantages and positive effects:

[0018] In the sliding door structure of the embodiment of the present invention, when the door body moves relative to the frame along the second direction to open or close the opening, the first guide portion and the first matching portion, as well as the second guide portion and the second matching portion, establish a sliding connection relationship on both sides of the opening, and provide uniform and accurate guidance for the movement of the door body relative to the frame, thereby ensuring that the door body can accurately and smoothly move along the second direction on the frame. During the movement of the door body relative to the frame, the positioning member slides in the positioning groove. On the one hand, the cooperation between the two can provide additional guidance for the movement of the door body, making the movement of the door body more accurate. On the other hand, a limiting cooperation can be formed between the positioning member and the positioning groove to limit the positioning member from being separated from the positioning groove. Since one of the positioning member and the positioning groove is provided on the door body and the other is provided on the frame, the cooperation between the positioning member and the positioning groove can effectively limit the door body from shaking or falling on the frame, thereby ensuring the safety and stability of the movement of the door body, so that it can effectively play the role of closing or opening the opening. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The various objects, features, and advantages of the present invention will become more apparent upon consideration of the following detailed description of preferred embodiments of the present invention in conjunction with the accompanying drawings. The accompanying drawings are merely illustrative illustrations of the present invention and are not necessarily drawn to scale. In the accompanying drawings, like reference numerals denote identical or similar components.

[0020] Figure 1 1 is a schematic structural diagram of a sliding door structure and a protective cover according to an exemplary embodiment.

[0021] Figure 2 yes Figure 1 Schematic diagram of the structure with the middle opening in the open state.

[0022] Figure 3 yes Figure 1 sectional view of .

[0023] Figure 4 yes Figure 2 A magnified schematic diagram of area A in the middle.

[0024] Figure 5 yes Figure 2 Schematic diagram of the enlarged area B.

[0025] The following are the descriptions of the reference numerals:

[0026] 1. Frame; 11. Opening; 12. First guide portion; 121. First portion; 122. Second portion; 13. Second guide portion; 14. Positioning groove; 141. First groove wall; 142. Second groove wall; 143. Groove bottom wall; 144. Notch; 15. Cylinder;

[0027] 2. Door body; 21. First door body; 211. First matching portion; 22. Second door body; 221. Second matching portion; 23. Positioning member; 24. Cylinder bracket;

[0028] 3. Connecting frame; 31. First section; 32. Second section;

[0029] 4. Cover body; 41. Accommodation cavity;

[0030] D1, first direction; D2, second direction; D3, third direction. DETAILED DESCRIPTION

[0031] Although the present invention can be easily embodied as embodiments of different forms, only some of the specific embodiments are shown in the drawings and will be described in detail in this specification. It should be understood that this description should be regarded as an exemplary illustration of the principles of the present invention and is not intended to limit the present invention to that described herein.

[0032] Thus, a feature indicated in this specification is intended to illustrate one of the features of one embodiment of the present invention, rather than implying that every embodiment of the present invention must have the described feature. Furthermore, it should be noted that this specification describes many features. Although certain features can be combined together to illustrate possible system designs, these features can also be used in other, not explicitly described, combinations. Thus, unless otherwise noted, the described combinations are not intended to be limiting.

[0033] In the embodiments shown in the accompanying drawings, directional indications (such as up, down, left, right, front, and back) used to explain the structure and movement of various components of the present invention are not absolute but relative. These descriptions are applicable when these components are in the positions shown in the accompanying drawings. If the descriptions of the positions of these components are changed, these directional indications will also change accordingly.

[0034] See also Figures 1 to 5The sliding door structure provided by one embodiment of the present invention mainly includes a frame 1 and a door body 2. The frame 1 is provided with an opening 11, a first guide portion 12, and a second guide portion 13. The first guide portion 12 and the second guide portion 13 are spaced apart in a first direction D1 and are located parallel to each other on both sides of the opening 11. The door body 2 is movably provided on the frame 1 along a second direction D2 to close or open the opening 11. The second direction D2 is perpendicular to the first direction D1. The door body 2 is provided with a first matching portion 211 and a second matching portion 221 spaced apart in the first direction D1. The first matching portion 211 and the second matching portion 221 are slidably connected to the first guide portion 12 and the second guide portion 13 in the second direction D2, respectively. Among them, a positioning member 23 and a positioning groove 14 are respectively provided on the frame 1 and the door body 2. The positioning member 23 is slidably provided in the positioning groove 14 along the second direction D2. The positioning member 23 and the positioning groove 14 form a limiting fit to prevent the positioning member 23 from escaping from the positioning groove 14, thereby preventing the door body 2 from escaping from the frame 1.

[0035] In the sliding door structure of the embodiment of the present invention, when the door body 2 moves relative to the frame 1 along the second direction D2 to open or close the opening 11, the first guide portion 12 and the first matching portion 211 and the second guide portion 13 and the second matching portion 221 establish a sliding connection relationship on both sides of the opening 11, so as to guide the movement of the door body 2 relative to the frame 1 evenly and accurately, thereby ensuring that the door body 2 can move accurately and smoothly along the second direction D2 on the frame 1. During the movement of the door body 2 relative to the frame 1, the positioning member 23 slides in the positioning groove 14. On the one hand, the cooperation between the two can provide additional guidance for the movement of the door body 2, making the movement of the door body 2 more accurate. On the other hand, a limiting cooperation can be formed between the positioning member 23 and the positioning groove 14 to limit the positioning member 23 from escaping from the positioning groove 14. Since one of the positioning member 23 and the positioning groove 14 is provided on the door body 2 and the other is provided on the frame 1, the cooperation between the positioning member 23 and the positioning groove 14 can effectively limit the door body 2 from shaking or falling on the frame 1, thereby ensuring the safety and stability of the movement of the door body 2 and enabling it to effectively play the function of closing or opening the opening 11.

[0036] It should be noted that the coordination between each set of guide portions and mating portions can be such that one of the guide portion and the mating portion is a guide rail and the other is a slider, or such that one of the guide portion and the other is a roller. In this embodiment, the first guide portion 12 is a guide rail, the first mating portion 211 is a roller, the second guide portion 13 is a guide rail, and the second mating portion 221 is a slider.

[0037] It should be noted that one of the first direction D1 and the second direction D2 is a horizontal direction, and the other is a vertical direction. In this embodiment, the first direction D1 is a vertical direction, and the second direction D2 is a horizontal direction.

[0038] See also Figure 3 and Figure 4 In one embodiment of the above-mentioned positioning member 23 and positioning slot 14 forming a restraining fit that prevents the positioning member 23 from disengaging from the positioning slot 14, the positioning slot 14 includes a first slot wall 141 and a second slot wall 142 extending along the second direction D2, and a slot bottom wall 143 connecting the first slot wall 141 and the second slot wall 142. The first slot wall 141 and the second slot wall 142 are spaced apart along a third direction D3, which is perpendicular to the first direction D1 and the second direction D2. A notch 144 is formed between the first slot wall 141 and the second slot wall 142. The positioning member 23 is provided on the door body 2, the positioning slot 14 is provided on the frame 1 and is located on the side where the first guide portion 12 is located, the positioning member 23 extends toward the second guide portion 13, and the notch 144 faces away from the second guide portion 13. Alternatively, the positioning member 23 is provided on the frame 1 and is located on the side where the first guide portion 12 is located, the positioning slot 14 is provided on the door body 2, the positioning member 23 extends away from the second guide portion 13, and the notch 144 faces away from the second guide portion 13.

[0039] The positioning member 23 enters the positioning groove 14 through the notch 144. The arrangement of the positioning member 23 and the positioning groove 14 enables the positioning member 23 to stably move along the second direction D2 during the movement of the door body 2 relative to the frame 1. On the one hand, the first groove wall 141 and the second groove wall 142 arranged in the third direction D3 can effectively block the positioning member 23 from moving in the third direction D3. On the other hand, the specific arrangement of the extension direction of the positioning member 23 and the orientation of the notch 144 of the positioning groove 14 enables the positioning member 23 and the positioning groove 14 to form a lock when the first matching portion 211 of the door body 2 tends to disengage from the first guide portion 12 of the frame 1 in the first direction D1, thereby limiting the movement of the door body 2 in the first direction D1, thereby effectively limiting the door body 2 from shaking or falling on the frame 1.

[0040] It is conceivable that the positioning member 23 and the positioning groove 14 can also be arranged in such a way that the positioning member 23 is arranged on the door body 2, and the positioning groove 14 is arranged on the frame 1 and is located on the side where the second guide portion 13 is located, or the positioning member 23 is arranged on the frame 1 and is located on the side where the second guide portion 13 is located, and the positioning groove 14 is arranged on the door body 2. The direction of the notch 144 of the positioning groove 14 and the extension direction of the positioning member 23 can be arranged with reference to the above embodiment, and will not be repeated here.

[0041] It should be noted that the positioning groove 14 and the positioning member 23 can be arranged in such a manner that the first groove wall 141, the second groove wall 142, and the positioning member 23 are parallel to the first direction D1, and the groove bottom wall 143 is parallel to the third direction D3. Alternatively, the first groove wall 141, the second groove wall 142, and the positioning member 23 are arranged at an angle to the first direction D1, and the groove bottom wall 143 is arranged at an angle to the third direction D3. In this embodiment, the positioning groove 14 and the positioning member 23 are arranged in the former manner, which can enhance the limiting effect in the first direction D1 and the third direction D3.

[0042] In a further embodiment, the positioning member 23 is provided on the door body 2, and the positioning groove 14 is provided on the frame 1 and is located on the side where the first guide portion 12 is located, the positioning member 23 is connected to the first matching portion 211, and the positioning groove 14 is connected to the first guide portion 12. When the positioning member 23 is provided on the frame 1 and is located on the side where the first guide portion 12 is located, and the positioning groove 14 is provided on the door body 2, the positioning member 23 is connected to the first guide portion 12, and the positioning groove 14 is connected to the first matching portion 211. In the sliding door structure, the first matching portion 211 and the first guide portion 12 are responsible for controlling the moving direction of the door body 2, while the positioning member 23 and the positioning groove 14 are responsible for preventing the door body 2 from separating from the frame 1. Through the connection relationship, the two sets of functional structures work together and influence each other, making the overall movement of the door body 2 more coordinated, thereby improving the overall stability of the sliding door structure.

[0043] In one embodiment of the invention, when the door body 2 moves relative to the frame 1, the first engaging portion 211 slides on the first guide portion 12. The first guide portion 12 is a V-shaped guide rail, and the first engaging portion 211 is a V-shaped roller. The V-shaped structure provides good guidance between the roller and the guide rail, so that the roller can only roll in a specific direction on the guide rail and is not easily misaligned.

[0044] In one embodiment in which the positioning groove 14 is connected to the first guide portion 12 and the positioning member 23 is connected to the first matching portion 211, the first guide portion 12 includes a first portion 121 and a second portion 122 that are cross-connected. The first portion 121, the second portion 122, the first groove wall 141, and the second groove wall 142 are arranged in sequence along the third direction D3. The first groove wall 141 is connected to the second portion 122 to connect the positioning groove 14 to the first guide portion 12. The sliding door structure also includes a connecting frame 3, which includes a first section 31 and a second section 32 that are connected in a bent manner. The first section 31 extends along the first direction D1 and is connected to the first matching portion 211. The second section 32 extends along the third direction D3 and is connected to the positioning member 23 to connect the positioning member 23 to the first matching portion 211. A practical structural layout method is provided, which optimizes the connection relationship between the various components, improves the compactness of the sliding door structure, and makes the force transmission smoother, thereby improving the stability of the movement of the door body 2.

[0045] See also Figures 1 to 3 The door body 2 includes a first door body 21 and a second door body 22. A first mating portion 211 is provided at one end of the first door body 21 in the first direction D1. The other end of the first door body 21 in the first direction D1 is connected to one end of the second door body 22. The second door body 22 extends along a third direction D3, which is perpendicular to the first direction D1 and the second direction D2, respectively. A second mating portion 221 is provided at the other end of the second door body 22. This structural design of the door body 2 and the arrangement of the opening 11 that cooperates therewith allow operators to operate on components within the sliding door structure from different directions according to actual needs during actual operation, providing greater flexibility.

[0046] It can be imagined that the door body 2 in the present sliding door structure can be one, or two or more door bodies 2 arranged in parallel along the second direction D2. In the present embodiment, the number of door bodies 2 is two. When the two door bodies 2 move along the second direction D2 and move away from each other, they jointly open the opening 11. When the two door bodies 2 move along the second direction D2 and approach each other, they jointly close the opening 11. Specifically, according to actual use requirements, it is possible to act on both door bodies 2 at the same time or only on one of them. Compared with the situation where only one larger door body 2 is set to close or open the opening 11, the setting method of having two independently set door bodies 2 that can be spliced ​​together is more labor-saving in operation.

[0047] See also Figure 1 and Figure 2 Frame 1 is provided with a cylinder 15, and door body 2 is provided with a cylinder bracket 24. Cylinder 15 corresponds to cylinder bracket 24 and is used to drive door body 2 to move in a second direction D2. Cylinder 15 provides a stable power source that can accurately control the movement of door body 2, thereby improving the smoothness of the movement of door body 2.

[0048] See also Figure 1 and Figure 2 The protective cover provided in one embodiment of the present invention includes a cover body 4 and the sliding door structure of the above embodiment. The cover body 4 defines a receiving chamber 41. The cover body 4 is connected to the frame 1, and the opening 11 communicates with the receiving chamber 41. The protective cover structure can protect the equipment or items in the receiving chamber 41. The sliding door structure can conveniently control whether the receiving chamber 41 is connected to the outside, thereby facilitating operation and maintenance.

[0049] In a further embodiment, when the door body 2 moves relative to the frame 1 to open the opening 11, part of the door body 2 moves into the accommodating cavity 41, saving the need for external space when opening the opening 11, so that the protective cover can be suitable for use in an environment with limited space and reduce the impact on the surrounding environment.

[0050] The present invention provides a numerically controlled machine tool comprising a machine tool body and the protective cover of the above embodiment, which is mounted on the machine tool body. The protective cover is used to protect components on the machine tool body from dust, chips and other impurities, thereby extending the service life of the machine tool.

[0051] While the present invention has been described with reference to several exemplary embodiments, it should be understood that the terms used are illustrative and exemplary rather than restrictive. Since the present invention can be embodied in a variety of forms without departing from the spirit or essence of the invention, it should be understood that the above-described embodiments are not limited to any of the foregoing details, but should be interpreted broadly within the spirit and scope of the appended claims. Therefore, all changes and modifications that fall within the scope of the claims or their equivalents are intended to be covered by the appended claims.

Claims

1. A sliding door structure, characterized in that: include: a frame, the frame having an opening, a first guide portion and a second guide portion, wherein the first guide portion and the second guide portion are spaced apart in a first direction and are located parallel to each other on both sides of the opening; a door body, the door body being movably disposed on the frame along a second direction to close or open the opening, the second direction being perpendicular to the first direction, the door body being provided with a first mating portion and a second mating portion spaced apart in the first direction, the first mating portion and the second mating portion being slidably connected to the first guide portion and the second guide portion, respectively, in the second direction; In which, a positioning member and a positioning groove are respectively provided on the frame and the door body. The positioning member can be slidably arranged in the positioning groove along the second direction. The positioning member and the positioning groove form a limiting fit to prevent the positioning member from detaching from the positioning groove, so as to prevent the door body from detaching from the frame.

2. The sliding door structure according to claim 1, characterized in that: The positioning groove includes a first groove wall and a second groove wall extending along the second direction, and a groove bottom wall connecting the first groove wall and the second groove wall, the first groove wall and the second groove wall are spaced apart along a third direction, the third direction is perpendicular to the first direction and the second direction, and a notch is formed between the first groove wall and the second groove wall; The positioning member is provided on the door body, the positioning groove is provided on the frame and is located on the side where the first guide portion is located, the positioning member extends toward the second guide portion, and the notch faces away from the second guide portion; Alternatively, the positioning member is provided on the frame and is located on the side where the first guide portion is located, the positioning groove is provided on the door body, the positioning member extends back to the second guide portion, and the notch faces the second guide portion.

3. The sliding door structure according to claim 2, characterized in that: When the positioning member is provided on the door body and the positioning groove is provided on the frame and is located on the side where the first guide portion is located, the positioning member is connected to the first matching portion and the positioning groove is connected to the first guide portion; The positioning member is provided on the frame and is located on the side where the first guide portion is located. When the positioning groove is provided on the door body, the positioning member is connected to the first guide portion, and the positioning groove is connected to the first matching portion.

4. The sliding door structure according to claim 3, characterized in that: The first guide portion is a V-shaped guide rail, and the first matching portion is a V-shaped roller.

5. The sliding door structure according to claim 4, characterized in that: The first guide portion includes a first portion and a second portion that are cross-connected, wherein the first portion, the second portion, the first groove wall, and the second groove wall are sequentially arranged along the third direction, and the first groove wall is connected to the second portion so that the positioning groove is connected to the first guide portion; The sliding door structure also includes a connecting frame, which includes a first section and a second section that are bent and connected. The first section extends along the first direction and is connected to the first matching portion. The second section extends along the third direction and is connected to the positioning member to connect the positioning member to the first matching portion.

6. The sliding door structure according to claim 1, characterized in that: The door body includes a first door body and a second door body, the first door body is provided with the first matching portion at one end in the first direction, the other end of the first door body in the first direction is connected to one end of the second door body, the second door body extends along a third direction, the third direction is perpendicular to the first direction and the second direction respectively, and the second matching portion is provided on the other end of the second door body.

7. The sliding door structure according to claim 1, characterized in that: The frame is provided with a cylinder, the door body is provided with a cylinder bracket, the cylinder corresponds to the cylinder bracket, and the cylinder is used to drive the door body to move in the second direction.

8. A protective cover, characterized in that: The invention comprises a cover body and the sliding door structure according to any one of claims 1 to 7, wherein a receiving cavity is provided in the cover body, the cover body is connected to the frame, and the opening is communicated with the receiving cavity.

9. The protective cover according to claim 8, characterized in that When the door body moves relative to the frame to open the opening, the door body part moves into the accommodating cavity.

10. A CNC machine tool, characterized in that: The invention comprises a machine tool body and the protective cover according to any one of claims 8 and 9, wherein the protective cover is mounted on the machine tool body.

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