Shaft body protection device of engraving and milling machine

Abstract

The utility model belongs to the field of engraving and milling machines, and particularly relates to a shaft body protection device of an engraving and milling machine, which comprises a shaft seat, a rotatable shaft body is arranged in the shaft seat, a protection shell is sleeved outside the shaft body, and the far end of the shaft body is connected with a concave tool apron; the direction adjusting mechanism comprises a support installed on the protective shell, a driving device is arranged on one side of the support, the output end of the driving device is connected with a direction adjusting shaft penetrating through the support, and the direction adjusting shaft is sleeved with a connecting rod piece. When the engraving and milling machine is idle, the two protective sleeves are driven to be folded through the cooperative work of the direction adjusting mechanism and the separation mechanism, at the moment, the two protective discs on the lower portion are closed, separation protection is conducted on the tool apron, and chippings generated in the machine table cleaning process are prevented from invading the tool apron. During engraving and milling operation, the liquid supply valve sucks external cleaning liquid into the water distribution end base through the liquid supply pipe, the cleaning liquid is sprayed through the sprayer, on one hand, spraying cooling is conducted, and meanwhile chippings attached to the outer wall of the cutter can be cleaned.

Description

Technical Field

[0001] The utility model relates to the field of engraving and milling machines, in particular to a shaft protection device of the engraving and milling machines. Background Art

[0002] A milling machine is a type of CNC machine tool. It's generally considered a CNC milling machine that uses small tools and a high-power, high-speed spindle motor. While engraving machines excel at carving, they struggle when working with hard materials. The advent of milling machines bridges the gap between the two.

[0003] The existing technology has the following problems:

[0004] 1. The spindle of the engraving and milling machine cooperates with the tool holder to replace the tool. When idle, the tool is in the tool magazine. There is a hidden danger that the debris from cleaning the machine will invade the spindle tool holder. There is currently a lack of a separation structure for closed protection when idle.

[0005] 2. During engraving and milling operations, on the one hand, the tool temperature will rise due to the friction temperature in contact with the workpiece, and on the other hand, flying debris will adhere to the tool. Working for a long time under high temperature and attached debris will cause great damage to the tool. Utility Model Content

[0006] (1) Purpose of the utility model

[0007] In order to solve the technical problems existing in the background technology, the utility model proposes a shaft protection device for an engraving and milling machine, which has the characteristics of providing closed protection by setting a separation mechanism and assisting in cooling and cleaning during the engraving and milling operation.

[0008] (2) Technical solution

[0009] In order to solve the above technical problems, the utility model provides a shaft protection device for an engraving and milling machine, comprising a shaft seat, wherein a rotatable shaft is built into the shaft seat, the outer portion of the shaft is provided with a protective shell, and the distal end is connected to a concave tool seat;

[0010] The steering mechanism includes a bracket mounted on the protective shell, a driving device is provided on one side of the bracket, an output end of the driving device is connected to a steering shaft passing through the bracket, and a connecting rod is sleeved on the outer portion of the steering shaft;

[0011] The separation mechanism includes a protective sleeve connected to the connecting rod, the protective sleeve is formed with a protective disc, and the protective disc has a built-in sealing member;

[0012] The spray mechanism includes a liquid supply valve arranged on the sheath, a liquid supply pipe is provided on one side of the liquid supply valve, and the other end is connected to a water distribution end seat penetrating the inner cavity of the sheath, and a plurality of sprinklers are provided at the lower part of the water distribution end seat.

[0013] Preferably, the steering shaft is controlled to rotate by the driving device, and the connecting rod rotates synchronously with the steering shaft.

[0014] Preferably, the knife seat is a one-way open frustum structure, and its specifications are compatible with the sheath.

[0015] Preferably, the protective disc has a built-in seal, which includes a hollow sealing ring at the bottom and a closed sealing sheet at the top.

[0016] Preferably, a raised protective disc is formed on the lower portion of the sheath, and the closed lower portions of the two protective discs are parallel to the lower portion of the knife seat.

[0017] Preferably, the liquid supply valve is connected to an external water supply device through a liquid supply pipe.

[0018] The above technical solution of the utility model has the following beneficial technical effects:

[0019] 1. When the engraving and milling machine is idle, the two guards are driven to close through the cooperation of the adjustment mechanism and the separation mechanism. At this time, the two guard plates at the bottom are closed to separate and protect the tool holder to prevent debris from the cleaning process from invading the tool holder.

[0020] 2. During engraving and milling operations, the liquid supply valve draws external cleaning liquid into the water distribution end seat through the liquid supply pipe, and sprays the cleaning liquid through the sprinkler, which can not only cool down the tool but also clean the debris attached to the outer wall of the tool. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the implementation structure of the utility model;

[0022] Figure 2 It is a partial structural diagram of the utility model;

[0023] Figure 3 This is a schematic diagram of the structure of the separation mechanism of the present utility model;

[0024] Figure 4 It is a schematic diagram of the overall structure of the utility model.

[0025] Reference numerals:

[0026] 11. Shaft seat; 12. Shaft body; 13. Protective shell; 14. Knife seat; 21. Bracket; 22. Adjustment shaft; 23. Drive device; 24. Connecting rod; 31. Protective sleeve; 32. Protective disc; 33. Seal; 41. Liquid supply valve; 42. Liquid supply pipe; 43. Water distribution end seat; 44. Sprinkler. DETAILED DESCRIPTION

[0027] To make the objectives, technical solutions, and advantages of the present invention more clearly understood, the present invention is further described below in conjunction with specific embodiments and with reference to the accompanying drawings. It should be understood that these descriptions are merely illustrative and are not intended to limit the scope of the present invention. Furthermore, descriptions of known structures and technologies are omitted in the following description to avoid unnecessary confusion regarding the concepts of the present invention.

[0028] like Figure 1-4 As shown, the shaft protection device of the engraving and milling machine proposed in the present invention includes a shaft seat 11, a rotatable shaft 12 is built into the shaft seat 11, a protective shell 13 is provided on the outside of the shaft 12, and a concave tool seat 14 is connected to the far end;

[0029] The steering mechanism includes a bracket 21 mounted on the protective shell 13. A driving device 23 is provided on one side of the bracket 21. The output end of the driving device 23 is connected to a steering shaft 22 that passes through the bracket 21. A connecting rod 24 is sleeved on the outer surface of the steering shaft 22.

[0030] The separation mechanism includes a sheath 31 connected to the connecting rod 24, a protective disc 32 is formed on the sheath 31, and a sealing member 33 is built into the protective disc 32;

[0031] The spray mechanism includes a liquid supply valve 41 arranged on the sheath 31. A liquid supply pipe 42 is provided on one side of the liquid supply valve 41, and the other end is connected to a water distribution end seat 43 that passes through the inner cavity of the sheath 31. A plurality of sprinklers 44 are provided at the lower part of the water distribution end seat 43.

[0032] In this embodiment, when the engraving and milling machine needs to assemble the tool, the adjustment mechanism works, the driving device 23 drives the adjustment shaft 22 to rotate, and the connecting rod 24 rotates synchronously with the adjustment shaft 22, driving the two sleeves 31 of the separation mechanism to move outward, exposing the opening of the tool holder 14 connected to the shaft body 12 to the outside, and assembling the tool. When the engraving and milling machine finishes working, the tool is removed, and the two sleeves 31 are driven to close through the cooperation of the adjustment mechanism and the separation mechanism. At this time, the two protective discs 32 at the bottom are closed to separate and protect the tool holder 14 to prevent debris from the cleaning process from invading the tool holder 14.

[0033] It can be understood that the tool holder 14 is a one-way open conical structure, and its specifications are compatible with the sleeve 31. The sleeve 31 covers the outer periphery of the tool holder. At this time, the protective disc 32 formed at the lower part of the sleeve 31 is a raised design, the purpose of which is to add a spray mechanism. The closed lower parts of the two protective discs 32 are parallel to the lower part of the tool holder 14 for functional expansion.

[0034] In another embodiment, during engraving and milling operations, the liquid supply valve 41 is connected to an external water supply device through a liquid supply pipe 42, and the external cleaning liquid is sucked into the water distribution end seat 43, and the cleaning liquid is sprayed through the sprayer 44. On the one hand, the spraying is performed to cool down, and at the same time, the debris attached to the outer wall of the tool can be cleaned.

[0035] It should be added that the protective disc 32 has a built-in seal 33, which includes a hollow sealing ring at the bottom and a closed sealing piece at the top. The hollow sealing ring at the bottom seals the gap of the protective disc 32 when combined, and the closed sealing piece at the top prevents residual cleaning liquid from invading the knife seat 14, thereby performing dry and wet separation.

[0036] It should be understood that the above-described specific embodiments of the present invention are merely illustrative of or explanation of the principles of the present invention and do not constitute limitations of the present invention. Therefore, any modifications, equivalent substitutions, improvements, etc. made without departing from the spirit and scope of the present invention shall be included within the scope of protection of the present invention. In addition, the appended claims of the present invention are intended to cover all variations and modifications that fall within the scope and metes and bounds of the appended claims, or equivalents thereof.

Claims

1. A shaft protection device for an engraving and milling machine, characterized in that: The shaft seat (11) comprises a shaft seat (11) having a built-in rotatable shaft body (12), the shaft body (12) is provided with a protective shell (13) on the outside, and a concave knife seat (14) is connected to the far end; The steering mechanism comprises a bracket (21) mounted on the protective shell (13); a driving device (23) is provided on one side of the bracket (21); an output end of the driving device (23) is connected to a steering shaft (22) passing through the bracket (21); and a connecting rod (24) is sleeved on the exterior of the steering shaft (22); The separation mechanism comprises a protective sleeve (31) connected to the connecting rod (24), a protective disc (32) is formed on the protective sleeve (31), and a sealing member (33) is built into the protective disc (32); The spray mechanism comprises a liquid supply valve (41) arranged on the sheath (31), a liquid supply pipe (42) is arranged on one side of the liquid supply valve (41), and the other end is connected to a water distribution end seat (43) that passes through the inner cavity of the sheath (31), and a plurality of sprayers (44) are arranged at the lower part of the water distribution end seat (43).

2. The shaft protection device of the engraving and milling machine according to claim 1, characterized in that: The steering shaft (22) is controlled to rotate by the driving device (23), and the connecting rod (24) rotates synchronously with the steering shaft (22).

3. The shaft protection device of the engraving and milling machine according to claim 1, characterized in that: The knife seat (14) is a one-way open frustum structure, and its specifications are compatible with the sheath (31).

4. The shaft protection device of an engraving and milling machine according to claim 1, characterized in that: The protective disc (32) has a built-in sealing member (33), and the sealing member (33) comprises a hollow sealing ring at the bottom and a closed sealing sheet at the top.

5. The shaft protection device of an engraving and milling machine according to claim 1, characterized in that: A raised protective disc (32) is formed on the lower portion of the protective sleeve (31), and the closed lower portions of the two protective discs (32) are parallel to the lower portion of the knife seat (14).

6. The shaft protection device of an engraving and milling machine according to claim 1, characterized in that: The liquid supply valve (41) is connected to an external water supply device via a liquid supply pipe (42).

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