Sheet metal shell of engraving and milling machine

Abstract

The utility model discloses an engraving and milling machine sheet metal shell, which relates to the technical field of engraving and milling machines, and comprises a shell base and a shell upper cover connected to the upper part of the shell base, and the top of the shell base is fixedly connected with the top of the shell upper cover through a clamping structure I; the two sides of the shell base and the two sides of the shell upper cover are connected and fixed through second clamping structures, and the bottom of the shell base and the bottom of the shell upper cover are connected and fixed through fastening screws. According to the metal plate shell of the engraving and milling machine, four connecting parts are arranged between the base and the upper cover, three connecting parts are assembled and fixed through clamping structures, and the last connecting part is assembled and fixed only by using one sixth of screws compared with the prior art, so that the purpose of the same assembling and fixing effect can be achieved; and moreover, assembly procedures are few, efficiency is high, and most importantly, cost can be reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of precision engraving machines, in particular to a sheet metal shell of a precision engraving machine. Background Art

[0002] The precision engraving machine is a kind of CNC machine tool, which is mainly used for non-contact cutting and punching of metal or non-metallic plates and pipes. The shell of the precision engraving machine is formed by modular sheet metal splicing. In the prior art, the splicing parts of the sheet metal shell (usually four faces) are all connected and fastened by screws. The entire assembly of a set of precision engraving machine shell requires at least 30 screws on the four faces, and it is also necessary to pre-open screw adaptation holes at the joints of each face. It is not only troublesome to assemble, but also laborious and costly to process. For this reason, we propose a precision engraving machine sheet metal shell in which three faces are fixed by snap-fitting and only one face is fixed by a small number of screws. Utility Model Content

[0003] In view of the deficiencies in the prior art, the utility model provides a sheet metal housing for a precision engraving machine, which solves the problems raised by the above-mentioned background technology.

[0004] To achieve the above purpose, the utility model is implemented through the following technical solutions: a sheet metal shell of a precision engraving machine, including a shell base and a shell cover connected to the upper part of the shell base, the top of the shell base is connected with an upper clamping convex edge, the top of the inner part of the shell cover is fixedly connected with a clamping convex column, the surface of the upper clamping convex edge is penetrated by a clamping hole corresponding to the clamping convex column, both sides of the shell base are fixedly connected to the side clamping convex edges, both sides of the shell cover are fixedly connected to the side strips, a limited guide groove is reserved between the shell cover and the side strips, and the shell base and the bottom of the shell cover are connected and fixed by fastening screws.

[0005] Furthermore, when the shell base and the shell cover are assembled and connected, the locking protrusion is inserted and locked in the locking hole.

[0006] Furthermore, when the shell base and the shell cover are assembled and connected, the side clamping convex edge is clamped in the inner part of the limiting guide groove.

[0007] Furthermore, heat dissipation windows are provided on both sides of the top of the upper cover of the outer shell, and a dustproof net is fixedly connected to the inner wall of the upper cover of the outer shell at the position corresponding to the heat dissipation window.

[0008] Furthermore, a threaded hole is provided at the bottom of the housing base, and a through hole is provided at the bottom of the housing upper cover. After the fastening screw passes through the through hole, it is threadedly connected and fixed with the threaded hole.

[0009] Furthermore, the outlines of the shell base, the side clamping convex edge, the side strip and one side of the shell cover are all matched "L"-shaped structures.

[0010] The utility model provides a sheet metal shell for a precision engraving machine. Compared with the prior art, it has the following beneficial effects:

[0011] The sheet metal shell of the engraving machine has four connecting parts between the base and the upper cover, three of which are assembled and fixed by means of a snap-fit ​​structure, and the last connecting part only uses one-sixth of the number of screws compared to the prior art to achieve assembly and fixation. Not only can the same assembly and fixing effect be achieved, but also fewer assembly steps, higher efficiency, and most importantly, lower costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the structure of the utility model from the front view;

[0013] Figure 2 It is a structural schematic diagram of the housing base in the utility model;

[0014] Figure 3 It is a schematic diagram of the structure of the upper cover of the housing in the utility model;

[0015] Figure 4 It is a front view of the upper cover of the housing in the utility model;

[0016] Figure 5 It is a cross-sectional view of the housing base and the housing upper cover of the utility model being mutually engaged and fixed;

[0017] Figure 6 It is a schematic structural diagram of the utility model from the back side perspective.

[0018] In the figure: 1. Shell base; 11. Side snap-in convex edge; 12. Upper snap-in convex edge; 13. Clamping hole; 14. Threaded hole; 2. Shell upper cover; 21. Side strip; 22. Limiting guide groove; 23. Clamping convex column; 24. Heat dissipation window; 25. Dustproof net; 26. Through hole; 3. Fastening screws. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] See also Figure 1-6The utility model provides a technical solution: a sheet metal shell of a precision engraving machine, comprising a shell base 1 and a shell cover 2 connected to the upper part of the shell base 1, the top of the shell base 1 and the shell cover 2 are connected and fixed by a snap-fit ​​structure 1, the two sides of the shell base 1 and the shell cover 2 are connected and fixed by a snap-fit ​​structure 2, and the bottom of the shell base 1 and the shell cover 2 are connected and fixed by fastening screws 3.

[0021] Specifically, the first engaging structure includes an upper engaging convex edge 12 fixedly connected to the top of the shell base 1, and a engaging convex column 23 fixedly connected to the top of the inner top of the shell cover 2. The surface of the upper engaging convex edge 12 is penetrated with a engaging hole 13 corresponding to the engaging convex column 23. When the shell base 1 and the shell cover 2 are assembled and connected, the engaging convex column 23 is inserted and engaged in the engaging hole 13. The second engaging structure includes a side engaging convex edge 11 fixedly connected to both sides of the shell base 1, and a side strip 21 fixedly connected to both sides of the shell cover 2. A limited guide groove 22 is reserved between the shell cover 2 and the side strip 21. When the shell base 1 and the shell cover 2 are assembled and connected, the side clamping convex edge 11 is clamped in the inner part of the limiting guide groove 22, and the contours of the shell base 1, the side clamping convex edge 11, the side strip 21 and one side of the shell cover 2 are all adapted "L"-shaped structures. Heat dissipation windows 24 are provided on both sides of the top of the shell cover 2, and a dustproof net 25 is fixedly connected to the inner wall of the shell cover 2 corresponding to the position of the heat dissipation window 24. A threaded hole 14 is provided at the bottom of the shell base 1, and a through hole 26 is provided at the bottom of the shell cover 2. After the fastening screw 3 passes through the through hole 26, it is threadedly connected and fixed with the threaded hole 14.

[0022] When assembling the shell base 1 and the shell cover 2, first let the side locking convex edges 11 on both sides be located inside the limiting guide groove 22. Under the action of gravity, release the shell cover 2 and let the shell cover 2 move from top to bottom. When the "L"-shaped cross-sections of the shell base 1 and the shell cover 2 are in contact, the shell cover 2 is in place. At this time, a number of locking protrusions 23 are inserted and locked in the inside of the locking holes 13, and the top is locked and fixed. The two sides and the lower part of the two are locked and fixed by the locking convex edges 11 and the limiting guide groove 22. Only the back side needs to screw the fastening screws 3 into the through holes 26 and the threaded holes 14 to complete the manual fixation of the entire shell at the only place.

Claims

1. A sheet metal casing of a precision engraving machine, comprising a casing base (1) and a casing upper cover (2) connected to the upper part of the casing base (1), characterized in that: The top of the shell base (1) is connected to an upper locking convex edge (12), the top of the inner part of the shell upper cover (2) is fixedly connected to a locking convex column (23), the surface of the upper locking convex edge (12) is penetrated by a locking hole (13) corresponding to the locking convex column (23), both sides of the shell base (1) are fixedly connected to the side locking convex edges (11), both sides of the shell upper cover (2) are fixedly connected to the side strips (21), a limiting guide groove (22) is reserved between the shell upper cover (2) and the side strips (21), and the shell base (1) and the bottom of the shell upper cover (2) are connected and fixed by fastening screws (3).

2. The sheet metal housing of a precision engraving machine according to claim 1, characterized in that: When the housing base (1) and the housing upper cover (2) are assembled and connected, the locking convex column (23) is inserted and locked in the inside of the locking hole (13).

3. The sheet metal housing of a precision engraving machine according to claim 1, characterized in that: When the housing base (1) and the housing upper cover (2) are assembled and connected, the side locking convex edge (11) is locked in the interior of the limiting guide groove (22).

4. The sheet metal housing of a precision engraving machine according to claim 1, characterized in that: Heat dissipation windows (24) are provided on both sides of the top of the outer shell upper cover (2), and a dustproof net (25) is fixedly connected to the inner wall of the outer shell upper cover (2) at positions corresponding to the heat dissipation windows (24).

5. The sheet metal housing of a precision engraving machine according to claim 1, characterized in that: The bottom of the housing base (1) is provided with a threaded hole (14), the bottom of the housing upper cover (2) is provided with a through hole (26), and the fastening screw (3) passes through the through hole (26) and is threadedly connected and fixed to the threaded hole (14).

6. The sheet metal housing of a precision engraving machine according to claim 3, characterized in that: The outlines of the housing base (1), the side clamping convex edge (11), the side strip (21) and one side of the housing upper cover (2) are all matched "L"-shaped structures.

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