Numerically-controlled machine tool operation box limiting structure and numerically-controlled machine tool

Abstract

The utility model relates to a numerical control machine tool operation box limiting structure and a numerical control machine tool, the numerical control machine tool operation box limiting structure comprises a metal plate structure and an operation box, and the metal plate structure is constructed as a part of the numerical control machine tool. The operation box is rotatably arranged on the metal plate structure. Wherein the metal plate structure and the operation box are provided with a limiting column and a limiting groove respectively, the limiting column comprises a rod part and a cap part which are connected, the limiting groove is in an arc shape and is coaxial with the rotation center of the operation box and the metal plate structure, the rod part is arranged in the limiting groove in a penetrating mode, and when the operation box and the metal plate structure rotate relatively, the rod part slides in the limiting groove; the limiting groove is used for limiting the angle range of rotation of the operation box relative to the metal plate structure, and the cap part and the limiting groove form limiting fit for preventing the rod part from being separated from the limiting groove in the axial direction.

Description

Technical Field

[0001] The utility model relates to the technical field of numerical control machine tools, in particular to a numerical control machine tool operating box limiting structure and the numerical control machine tool. Background Art

[0002] A CNC machine tool is an automated machine tool equipped with a program-controlled system that controls its movements and machining processes through digital commands. The control panel is a crucial component of a CNC machine tool, serving as the interface between the operator and the machine. It is used to input various commands and display information such as the machine's operating status and machining parameters. To facilitate operator access, the control panel is typically movably connected to the machine tool, allowing for easy repositioning.

[0003] The prior art discloses a rotating operation box structure, which includes an operation box and a mounting base. The operation box is provided with a rotating shaft and a stop lever. The mounting base is provided with a base and a sleeve connected thereto. The base is provided with an arcuate groove. The rotating shaft is rotatably inserted into the sleeve to allow the operation box to be rotatably mounted on the mounting base. The stop lever is slidably mounted in the arcuate groove. The arcuate groove is used to limit the rotation angle of the limit box relative to the mounting base. Specifically, the mounting base is fixed to the machine tool body, and the operator can change the position of the operation box on the machine tool body by rotating it.

[0004] However, when the machine tool body vibrates, the operating box is hit by external forces, or the force of rotating the operating box is too great, the stop rod is likely to fall out of the arc groove, and the reliability of limiting the rotation of the operating box is insufficient, and may even cause unnecessary collisions and damage to the operating box, thereby affecting the stability and safety of the operating box. Utility Model Content

[0005] The purpose of the utility model is to provide a CNC machine tool operating box limiting structure and a CNC machine tool, and the technical problem solved is: how to enhance the reliability of the rotation limiting of the operating box.

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

[0007] The utility model provides a limiting structure of an operation box of a numerically controlled machine tool, which comprises: a sheet metal structure, which is constructed as a part of the numerically controlled machine tool; an operation box, which is rotatably arranged on the sheet metal structure; wherein, a limiting column and a limiting groove are respectively provided on the sheet metal structure and the operation box, the limiting column comprises a rod portion and a cap portion connected to each other, the limiting groove is arc-shaped, and is coaxially arranged with the rotation center of the operation box and the sheet metal structure, the rod portion is passed through the limiting groove, and when the operation box and the sheet metal structure rotate relative to each other, the rod portion slides in the limiting groove, and the limiting groove is used to limit the angular range of rotation of the operation box relative to the sheet metal structure, and the cap portion and the limiting groove form a limiting fit that prevents the rod portion from axially escaping from the limiting groove.

[0008] In some embodiments of the present application, the limiting groove includes a first groove section and a second groove section that are connected, and the first groove section and the second groove section are arranged in sequence in the extension direction of the limiting groove, the groove width of the first groove section is greater than the outer diameter of the cap portion, the groove width of the second groove section is less than the outer diameter of the cap portion, and is greater than or equal to the outer diameter of the rod portion, and an elastic structure is provided on the groove wall of the first groove section, and the elastic structure is used to adjust the entry and exit gap of the first groove section, wherein when the elastic structure is compressed, the entry and exit gap of the first groove section is greater than the outer diameter of the cap portion, and when the elastic structure is reset, the entry and exit gap of the first groove section is less than the outer diameter of the cap portion.

[0009] In some embodiments of the present application, when the rod slides to abut against one end of the limit slot, the operating box rotates to a first position relative to the sheet metal structure; when the rod slides to abut against the other end of the limit slot, the operating box rotates to a second position relative to the sheet metal structure; a receiving slot is provided on the sheet metal structure, and when the operating box rotates to the first position, the operating box is received in the receiving slot; when the operating box rotates to the second position, the operating box partially or completely withdraws from the receiving slot.

[0010] In some embodiments of the present application, the accommodating groove includes a first groove wall, a second groove wall and a groove bottom wall respectively connected to the first groove wall and the second groove wall; the operating box includes a first side wall and a second side wall respectively arranged opposite to each other; the first side wall and the first groove wall are respectively provided with a first rotating shaft and a first axial hole, and the second side wall and the second groove wall are respectively provided with a second rotating shaft and a second axial hole, the first rotating shaft, the first axial hole, the second rotating shaft and the second axial hole are all coaxially arranged, and the first rotating shaft is rotatably connected to the first axial hole, and the second rotating shaft is rotatably connected to the second axial hole.

[0011] In some embodiments of the present application, the accommodating groove also includes a third groove wall, which is respectively connected to the first end of the first groove wall and the first end of the second groove wall, and a clearance opening is formed between the second end of the first groove wall and the second end of the second groove wall; the first axial hole is arranged on the side of the first groove wall close to the second end of the first groove wall, and the second axial hole is arranged on the side of the second groove wall close to the second end of the second groove wall; when the operating box is rotated to the second position, the operating box passes through the clearance opening.

[0012] In some embodiments of the present application, the operating box includes a main body and a flange, the flange includes a disk body and a rotating shaft connected to each other, the main body is provided with a mounting opening, the size of the disk body is larger than the mounting opening, the size of the rotating shaft is smaller than or equal to the size of the mounting opening, the disk body is arranged in the main body and connected to the main body, the rotating shaft is passed through the mounting opening and exposed outside the main body; the sheet metal structure is provided with an axis hole, and the rotating shaft is rotatably connected to the axis hole so that the operating box can be rotatably arranged on the sheet metal structure.

[0013] In some embodiments of the present application, the limiting groove is provided on the main body and is coaxially arranged with the mounting port. The rod portion is screwed to the sheet metal structure and connected between the cap portion and the sheet metal structure.

[0014] The utility model provides a limiting structure for an operation box of a numerically controlled machine tool, which comprises the limiting structure for an operation box of a numerically controlled machine tool described in any one of the above embodiments.

[0015] It can be seen from the above technical solutions that the embodiments of the present invention have at least the following advantages and positive effects:

[0016] In the limiting structure of the CNC machine tool operating box of the embodiment of the present invention, when the operating box rotates relative to the sheet metal structure, the rod portion of the limiting column slides in the limiting groove and the sliding trajectory is limited by the limiting groove. The limiting cooperation between the rod portion and the limiting groove in turn limits the angle range in which the operating box can rotate relative to the sheet metal structure, thereby ensuring that the limit box rotates within a suitable angle range, avoiding the inconvenience caused by unlimited rotation of the limit box, and the groove wall of the limiting groove can limit the rod portion of the limiting rod from escaping from the limiting groove from all sides. Furthermore, the cap portion and the limiting groove form a limiting fit that prevents the rod portion from axially escaping from the limiting groove. On the one hand, it ensures the reliability of the limiting mechanism formed by the limiting column and the limiting groove, and can reduce unnecessary collision and damage to the operating box caused by insufficient reliability of the rotation limit. On the other hand, since one of the limiting column and the limiting groove is provided on the sheet metal structure and the other is provided on the operating box, the anti-slip fit formed between the two can establish a stable connection between the sheet metal structure and the operating box, thereby ensuring that the operating box is not easily separated from the sheet metal structure, further improving the safety and stability of the use of the operating box. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] 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.

[0018] Figure 1 It is a structural schematic diagram of a limiting structure of an operation box of a CNC machine tool according to an exemplary embodiment.

[0019] Figure 2 yes Figure 1 Schematic diagram of the structure rotated to another position.

[0020] Figure 3 yes Figure 1 sectional view of .

[0021] Figure 4 yes Figure 3 A magnified schematic diagram of area A in the middle.

[0022] Figure 5 yes Figure 3 Schematic diagram of the structure of the limit slot.

[0023] Figure 6 yes Figure 1 Structural diagram of the sheet metal structure.

[0024] Figure 7 yes Figure 1 Schematic diagram of the structure of the operation box.

[0025] Figure 8 yes Figure 7 Schematic diagram of the exploded structure of the operation box in .

[0026] The following are the descriptions of the reference numerals:

[0027] 1. Sheet metal structure; 11. Limiting column; 111. Rod; 112. Cap; 12. Accommodating groove; 121. First groove wall; 1211. First axial hole; 122. Second groove wall; 1221. Second axial hole; 123. Groove bottom wall; 124. Third groove wall; 125. Yield opening;

[0028] 2. Operation box; 21. Main body; 211. Limiting groove; 2111. First groove section; 2112. Second groove section; 2113. Elastic structure; 2114. Entry and exit gap; 212. First side wall; 2121. First rotating shaft; 213. Second side wall; 2131. Second rotating shaft; 214. Mounting port; 22. Flange. DETAILED DESCRIPTION

[0029] 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.

[0030] 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.

[0031] 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.

[0032] See also Figures 1 to 4The limiting structure of the CNC machine tool operating box provided by one embodiment of the present invention mainly includes a sheet metal structure 1 and an operating box 2. The sheet metal structure 1 is constructed as a part of the CNC machine tool. The operating box 2 is rotatably arranged on the sheet metal structure 1. Among them, a limiting column 11 and a limiting groove 211 are respectively provided on the sheet metal structure 1 and the operating box 2. The limiting column 11 includes a rod portion 111 and a cap portion 112 connected to each other. The limiting groove 211 is arc-shaped and is coaxially arranged with the rotation center of the operating box 2 and the sheet metal structure 1. The rod portion 111 is inserted into the limiting groove 211. When the operating box 2 and the sheet metal structure 1 rotate relative to each other, the rod portion 111 slides in the limiting groove 211. The limiting groove 211 is used to limit the angular range of rotation of the operating box 2 relative to the sheet metal structure 1, and the cap portion 112 and the limiting groove 211 form a limiting fit to prevent the rod portion 111 from axially escaping from the limiting groove 211.

[0033] In the limiting structure of the CNC machine tool operating box of the embodiment of the present invention, when the operating box 2 rotates relative to the sheet metal structure 1, the rod portion 111 of the limiting column 11 slides in the limiting groove 211 and the sliding trajectory is limited by the limiting groove 211. The limiting cooperation between the rod portion 111 and the limiting groove 211 in turn limits the angle range in which the operating box 2 can rotate relative to the sheet metal structure 1, thereby ensuring that the limiting box rotates within a suitable angle range and avoiding the inconvenience caused by unlimited rotation of the limiting box. The groove wall of the limiting groove 211 can limit the rod portion 111 of the limiting rod from escaping from the limiting groove 211 from all sides. Furthermore, the cap portion 112 and the limiting groove 211 form a limiting fit that prevents the rod portion 111 from axially escaping from the limiting groove 211. On the one hand, the reliability of the limiting mechanism formed by the limiting column 11 and the limiting groove 211 is ensured, and unnecessary collision and damage to the operating box 2 caused by insufficient reliability of the rotation limit can be reduced. On the other hand, since one of the limiting column 11 and the limiting groove 211 is provided on the sheet metal structure 1 and the other is provided on the operating box 2, the anti-slip fit formed between the two can establish a stable connection between the sheet metal structure 1 and the operating box 2, thereby ensuring that the operating box 2 is not easily separated from the sheet metal structure 1, further improving the safety and stability of the use of the operating box 2.

[0034] It should be noted that the sheet metal structure 1 and the operating box 2 are respectively provided with a limiting column 11 and a limiting groove 211. The sheet metal structure 1 can be provided with a limiting column 11 and the operating box 2 is provided with a limiting groove 211, or the sheet metal structure 1 can be provided with a limiting groove 211 and the operating box 2 is provided with a limiting column 11. In this embodiment, the limiting column 11 and the limiting groove 211 are arranged in the former manner.

[0035] See also Figures 3 to 5In one embodiment of the above-mentioned cap portion 112 and the limiting groove 211 forming a limiting fit to prevent the rod portion 111 from axially escaping from the limiting groove 211, the limiting groove 211 includes a first groove section 2111 and a second groove section 2112 that are connected. The first groove section 2111 and the second groove section 2112 are arranged in sequence in the extension direction of the limiting groove 211. The groove width of the first groove section 2111 is greater than the outer diameter of the cap portion 112, and the groove width of the second groove section 2112 is less than the outer diameter of the cap portion 112. 2, and is greater than or equal to the outer diameter of the rod portion 111. An elastic structure 2113 is provided on the groove wall of the first groove section 2111. The elastic structure 2113 is used to adjust the inlet and outlet gap 2114 of the first groove section 2111. When the elastic structure 2113 is compressed, the inlet and outlet gap 2114 of the first groove section 2111 is greater than the outer diameter of the cap portion 112. When the elastic structure 2113 is reset, the inlet and outlet gap 2114 of the first groove section 2111 is smaller than the outer diameter of the cap portion 112.

[0036] When installing between the limit groove 211 and the limit column 11, the elastic structure 2113 is first compressed to make the cap 112 pass through the first groove section 2111 and be located outside the first groove section 2111. The rod 111 is arranged in the first groove section 2111. The resetting of the elastic structure 2113 can form a block for the cap 112, preventing the cap 112 from passing through the first groove section 2111 in the opposite direction. Since the first groove section 2111 is connected to the second groove section 2112, during the rotation of the operation box 2 relative to the sheet metal structure 1, the rod 111 can slide from the first groove section 2111 into the second groove section 2112. Since the groove width of the second groove section 2112 is smaller than the outer diameter of the cap 112, the cap 112 cannot pass through the second groove section 2112. Therefore, the design of the limit groove 211 not only facilitates the installation and cooperation between the limit groove 211 and the limit column 11, but also can form an effective and feasible anti-slip cooperation between the two.

[0037] In other embodiments, the width of the limiting groove 211 is smaller than the outer diameter of the cap 112 and greater than or equal to the outer diameter of the rod 111. During assembly, the sheet metal structure 1 and the operating box 2 are first rotatably connected, and then the rod 111 is passed through the limiting groove 211 of the operating box 2 and locked on the sheet metal structure 1. The sheet metal structure 1 and the cap 112 are connected via the rod 111, and the cap 112 is located outside the limiting groove 211. In this embodiment, it may be necessary to first remove the outer shell of the operating box 2, and then assemble the outer shell of the operating box 2 after the rod 111 is connected to the sheet metal structure 1, which is relatively cumbersome.

[0038] It is conceivable that the elastic structure 2113 can be a spring sheet or an elastic rubber block, and both the spring sheet and the elastic rubber block can stably block the cap portion 112 during resetting.

[0039] In a further embodiment, two elastic structures 2113 are provided, and the two elastic structures 2113 are relatively arranged on the two opposite groove walls of the first groove section 2111. The elastic structures 2113 can be compressed and reset synchronously. Compared with the case where only one elastic structure 2113 is provided, the force on both sides is more uniform, thereby improving the stability of the overall limit.

[0040] See also Figures 1 to 5 ,in, Figure 1 This is a structural diagram when the operating box 2 is rotated to the first position. Figure 2 This is a structural diagram of the operation box 2 when it rotates to the second position. When the rod 111 slides to abut against one end of the limit slot 211, the operation box 2 rotates to the first position relative to the sheet metal structure 1. When the rod 111 slides to abut against the other end of the limit slot 211, the operation box 2 rotates to the second position relative to the sheet metal structure 1. A receiving slot 12 is provided on the sheet metal structure 1. When the operation box 2 rotates to the first position, the operation box 2 is accommodated in the receiving slot 12. When the operation box 2 rotates to the second position, the operation box 2 partially or completely withdraws from the receiving slot 12. In the working environment of a CNC machine tool, the space is often relatively compact. The provision of the receiving slot 12 allows the operation box 2 to be accommodated when not in use, making the layout of the entire machine tool more compact and reasonable. The provision of the receiving slot 12 can also provide a certain degree of protection for the operation box 2, thereby extending its service life.

[0041] See also Figure 6 and Figure 7 The receiving groove 12 includes a first groove wall 121 and a second groove wall 122 that are arranged opposite to each other, and a groove bottom wall 123 that is respectively connected to the first groove wall 121 and the second groove wall 122. The operation box 2 includes a first side wall 212 and a second side wall 213 that are respectively arranged opposite to each other. A first rotating shaft 2121 and a first shaft hole 1211 are respectively provided on the first side wall 212 and the first groove wall 121, and a second rotating shaft 2131 and a second shaft hole 1221 are respectively provided on the second side wall 213 and the second groove wall 122. The first rotating shaft 2121, the first shaft hole 1211, the second rotating shaft 2131 and the second shaft hole 1221 are all coaxially arranged, and the first rotating shaft 2121 is rotatably connected to the first shaft hole 1211, and the second rotating shaft 2131 is rotatably connected to the second shaft hole 1221. The rotation center of the operating box 2 and the sheet metal structure 1 is located within the receiving groove 12, further enhancing the spatial compactness of the overall structure. The presence of rotational connections on opposite sides further stabilizes the relative rotation between the operating box 2 and the sheet metal structure 1. In this embodiment, the first rotating shaft 2121 and the second rotating shaft 2131 are both located in the operating box 2, and the first and second rotating shaft holes 1211 and 1221 are both located in the sheet metal structure 1.

[0042] In a specific embodiment, the operation panel of the operation box 2 faces away from the bottom wall 123 of the accommodating groove 12, which makes it easier for the operator to operate the operation panel and improves the convenience of use.

[0043] See also Figure 2 and Figure 6 The receiving slot 12 also includes a third slot wall 124, which is connected to the first end of the first slot wall 121 and the first end of the second slot wall 122, respectively. A clearance opening 125 is formed between the second end of the first slot wall 121 and the second end of the second slot wall 122. A first axial hole 1211 is provided on a side of the first slot wall 121 near the second end of the first slot wall 121, and a second axial hole 1221 is provided on a side of the second slot wall 122 near the second end of the second slot wall 122. When the operating box 2 rotates to the second position, the operating box 2 passes through the clearance opening 125. The presence of the clearance opening 125 provides sufficient space for the rotation of the operating box 2, and the operating box 2 is not obstructed by the walls of the receiving slot 12 during rotation. In this embodiment, the coordination between the curvature of the limiting slot 211 and the clearance opening 125 allows the operating box 2 to rotate at an angle greater than a right angle, further facilitating the operator's use of the operating box 2.

[0044] See also Figures 6 to 8 The operating box 2 includes a main body 21 and a flange 22. The flange 22 includes a disk body and a rotating shaft connected to each other. The main body 21 is provided with a mounting opening 214. The size of the disk body is larger than the mounting opening 214, and the size of the rotating shaft is smaller than or equal to the size of the mounting opening 214. The disk body is arranged in the main body 21 and connected to the main body 21. The rotating shaft is passed through the mounting opening 214 and exposed outside the main body 21. The sheet metal structure 1 is provided with an axial hole, and the rotating shaft is rotatably connected to the axial hole, so that the operating box 2 can be rotatably arranged on the sheet metal structure 1. The disk body of the flange 22 is within the main body 21 of the operating box 2 and is larger than the mounting opening 214. This design makes the connection between the flange 22 and the main body 21 more stable. When the operating box 2 is subjected to vibration or accidental collision, the larger disk body can better disperse external forces and reduce the impact on the connection between the rotating shaft and the axial hole, thereby ensuring the stability of the overall structure of the operating box 2. The axial hole and the rotating shaft are easy to assemble, providing a feasible way to achieve a rotatable arrangement between the operating box 2 and the sheet metal structure 1.

[0045] In a specific embodiment, two flanges 22 are provided, and the rotation axes of the two flanges 22 are respectively the first rotation axis 2121 and the second rotation axis 2131 . Two shaft holes are provided, and the two shaft holes are respectively the first shaft hole 1211 and the second shaft hole 1221 .

[0046] In a specific embodiment, a limiting groove 211 is provided on the body 21 and is coaxially arranged with the mounting opening 214. The rod portion 111 is screwed to the sheet metal structure 1 and is disposed between the cap portion 112 and the sheet metal structure 1. The coaxial arrangement of the limiting groove 211 and the mounting opening 214 helps to precisely limit the rotation range or position of the operation box 2. The structure in which the rod portion 111 is screwed to the sheet metal structure 1 and connects the cap portion 112 and the sheet metal structure 1 enhances the stability of the connection between the operation box 2 and the sheet metal structure 1.

[0047] See also Figure 7 and Figure 8 In this embodiment, the first side wall 212 and the second side wall 213 are two opposite side walls of the body 21 , and the mounting opening 214 and the limiting groove 211 are both provided on the first side wall 212 .

[0048] An embodiment of the present invention provides a numerically controlled machine tool including the numerically controlled machine tool operating box limiting structure of the above-mentioned embodiments.

[0049] 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 CNC machine tool operating box limiting structure, comprising: Sheet metal structure, constructed as part of a CNC machine tool; an operating box rotatably mounted on the sheet metal structure; In which, the sheet metal structure and the operating box are respectively provided with a limit column and a limit groove, the limit column includes a rod portion and a cap portion connected thereto, the limit groove is arc-shaped, and is coaxially arranged with the rotation center of the operating box and the sheet metal structure, the rod portion is passed through the limit groove, and when the operating box and the sheet metal structure rotate relative to each other, the rod portion slides in the limit groove, and the limit groove is used to limit the angular range of rotation of the operating box relative to the sheet metal structure, and the cap portion and the limit groove form a limit fit to prevent the rod portion from axially escaping from the limit groove.

2. The CNC machine tool operating box limiting structure according to claim 1 is characterized in that: The limiting groove includes a first groove section and a second groove section that are connected to each other. The first groove section and the second groove section are arranged in sequence in the extension direction of the limiting groove. The groove width of the first groove section is greater than the outer diameter of the cap portion, and the groove width of the second groove section is less than the outer diameter of the cap portion and is greater than or equal to the outer diameter of the rod portion. An elastic structure is provided on the groove wall of the first groove section, and the elastic structure is used to adjust the entry and exit gap of the first groove section. When the elastic structure is compressed, the entry and exit gap of the first groove section is greater than the outer diameter of the cap portion. When the elastic structure is reset, the entry and exit gap of the first groove section is less than the outer diameter of the cap portion.

3. The CNC machine tool operating box limiting structure according to claim 1, characterized in that: When the rod slides to abut against one end of the limiting groove, the operation box rotates to the first position relative to the sheet metal structure; when the rod slides to abut against the other end of the limiting groove, the operation box rotates to the second position relative to the sheet metal structure; The sheet metal structure is provided with a receiving groove. When the operation box is rotated to a first position, the operation box is received in the receiving groove. When the operation box is rotated to a second position, the operation box is partially or completely withdrawn from the receiving groove.

4. The CNC machine tool operating box limiting structure according to claim 3 is characterized in that: The receiving groove includes a first groove wall, a second groove wall and a groove bottom wall respectively connected to the first groove wall and the second groove wall. The operating box includes a first side wall and a second side wall arranged opposite to each other; a first rotating shaft and a first axial hole are respectively provided on the first side wall and the first groove wall, and a second rotating shaft and a second axial hole are respectively provided on the second side wall and the second groove wall, the first rotating shaft, the first axial hole, the second rotating shaft and the second axial hole are all coaxially arranged, and the first rotating shaft is rotatably connected to the first axial hole, and the second rotating shaft is rotatably connected to the second axial hole.

5. The CNC machine tool operating box limiting structure according to claim 4, characterized in that: The receiving groove further includes a third groove wall, the third groove wall being connected to the first end of the first groove wall and the first end of the second groove wall respectively, and a clearance opening being formed between the second end of the first groove wall and the second end of the second groove wall; The first axial hole is provided on one side of the first groove wall close to the second end of the first groove wall, and the second axial hole is provided on one side of the second groove wall close to the second end of the second groove wall; When the operation box rotates to the second position, the operation box passes through the clearance opening.

6. The CNC machine tool operating box limiting structure according to claim 1, characterized in that: The operation box includes a body and a flange, the flange includes a disk body and a rotating shaft connected to each other, the body is provided with a mounting opening, the disk body is larger than the mounting opening, the rotating shaft is smaller than or equal to the mounting opening, the disk body is disposed in the body and connected to the body, the rotating shaft is passed through the mounting opening and exposed outside the body; The sheet metal structure is provided with an axis hole, and the rotating shaft is rotatably connected to the axis hole, so that the operation box can be rotatably arranged on the sheet metal structure.

7. The CNC machine tool operating box limiting structure according to claim 6, characterized in that: The limiting groove is provided on the main body and is coaxially arranged with the mounting opening. The rod portion is screwed to the sheet metal structure and is connected between the cap portion and the sheet metal structure.

8. A CNC machine tool, characterized in that: It includes the CNC machine tool operating box limiting structure as described in any one of claims 1 to 7.

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