Cooling mechanism for CNC engraving and milling machine

By designing a cooling mechanism that includes support components, carving components, connecting components, air jet components, and filtering components on a CNC engraving machine, the problem of uneven cooling in small CNC engraving machines has been solved, thereby improving cooling efficiency and machining accuracy.

CN223933216UActive Publication Date: 2026-02-24SICHUAN HONGRUIFENG INTELLIGENT TECHNOLOGY CO LTD
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Patent Information

Application Number
CN202520627836.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-07
Publication Date
2026-02-24
Estimated Expiration
2035-04-07

AI Technical Summary

Technical Problem

Small CNC engraving machines lack cooling mechanisms, resulting in uneven heat generation from friction between the cutting tool and the workpiece, which affects machining accuracy and surface quality.

Method used

A cooling mechanism was designed, comprising a support component, an engraving component, a connecting component, an air jet component, a cooling component, and a filtering component. The movement of the moving seat and the engraving tool drives the air jet head and water jet head to spray coolant to key parts, and the filtering component enables the recycling of coolant.

Benefits of technology

It improves cooling efficiency and machining accuracy, ensures uniform distribution of coolant, and enhances machining quality.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a cooling mechanism for a CNC engraving and milling machine, which comprises a supporting assembly, the supporting assembly comprises a base, a supporting plate is fixedly connected in the base, a supporting frame is fixedly connected on the outer surface of the base, an engraving assembly is arranged at the top of the supporting plate, the engraving assembly comprises a movable seat, a hydraulic telescopic rod and a graver, and the movable seat is fixedly connected with the hydraulic telescopic rod. The connecting assembly is arranged on the surface of the moving seat and comprises a connecting groove and a moving frame, the air spraying assembly is arranged at the top of the supporting plate and comprises an air extractor, an air conveying pipe and an air spraying head, the cooling assembly is arranged at the top of the supporting plate, and the filtering assembly is arranged on the surface of the base. According to the cooling mechanism for the CNC engraving and milling machine, in the machining process, the air spraying head and the water spraying head can be driven to spray air and water to spray water to key parts through movement of the moving base and the carving tool, filtering can be conducted through the filtering assembly, cyclic utilization of condensate is facilitated, and the cooling efficiency is improved. And the cooling efficiency and the machining precision are improved.
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Description

Technical Field

[0001] This utility model relates to the field of CNC engraving technology, and in particular to a cooling mechanism for a CNC engraving machine. Background Technology

[0002] Small CNC engraving machines employ precise mechanical structures and advanced control systems, enabling high-precision machining. Their positioning accuracy and repeatability typically reach the micron level, making them suitable for processing various precision parts, molds, and handicrafts.

[0003] However, existing small CNC engraving machines do not have a cooling mechanism. During the engraving process, the friction between the tool and the workpiece generates a lot of heat. For workpieces with complex shapes or special processing techniques, the nozzle may have difficulty following the movement of the tool to accurately spray the coolant to the key parts, resulting in uneven cooling and affecting the processing accuracy and surface quality.

[0004] Therefore, it is necessary to provide a cooling mechanism for CNC engraving machines to solve the above-mentioned technical problems. Utility Model Content

[0005] This invention provides a cooling mechanism for CNC engraving machines, which solves the problem that small CNC engraving machines do not have a cooling mechanism and the nozzle sprays to key positions following the movement of the tool.

[0006] To solve the above technical problems, this utility model provides a cooling mechanism for a CNC engraving machine, comprising: a support assembly, the support assembly including a base, a support plate fixedly connected inside the base, and a support frame fixedly connected to the outer surface of the base;

[0007] The carving assembly is disposed on the top of the support plate, and the carving assembly includes a movable base, a hydraulic telescopic rod, and a carving knife;

[0008] A connecting component is disposed on the surface of the movable base, the connecting component including a connecting groove and a movable frame;

[0009] A jet assembly, which is disposed on the top of the support plate, includes an air pump, an air delivery pipe, and a jet head;

[0010] A cooling assembly is disposed on the top of the support plate, and the cooling assembly includes a condensation tank, an infusion pipe, a water spray head, and a return pipe;

[0011] A filter assembly is disposed on the surface of the base, and the filter assembly includes a filter plate and a storage box.

[0012] Preferably, the movable seat is movably connected to the surface of the top of the support frame, the hydraulic telescopic rod is fixedly installed inside the movable seat, and the carving knife is fixedly installed at the bottom of the hydraulic telescopic rod.

[0013] Preferably, the connecting groove is fixedly connected to both ends of the movable base near the bottom, and both ends of the movable frame are movably connected inside the connecting groove.

[0014] Preferably, the air pump is fixedly connected to the top of the support frame, one end of the air supply pipe is fixedly connected to the surface of the air pump, the jet head is fixedly connected to the other end of the air supply pipe, and the jet head is fixedly installed on the surface of the movable frame.

[0015] Preferably, the condenser is fixedly connected to the top of the support frame, one end of the infusion tube is fixedly connected to the surface of the condenser, the water spray head is fixedly connected to the other end of the infusion tube, and the water spray head is fixedly installed on the surface of the movable frame.

[0016] Preferably, the filter plate is fixedly installed on the inner surface of the base, and the storage box is fixedly connected to the left and right ends of the base.

[0017] Preferably, the surface of the base is provided with a protective component, the protective component including a threaded rod, the threaded rod being movably connected to one end of the base, a drive motor being fixedly connected to the top of the threaded rod, and a protective cover being threadedly connected to the surface of the threaded rod.

[0018] Compared with related technologies, the cooling mechanism for a CNC engraving machine provided by this utility model has the following beneficial effects:

[0019] This invention provides a cooling mechanism for a CNC engraving machine. During the machining process, the movement of the moving base and the engraving tool can drive the air jet head and water jet head to spray water and air to key parts. The filtration component can filter the condensate and recycle it, improving cooling efficiency and machining accuracy. Attached Figure Description

[0020] Figure 1 A schematic diagram of the structure of a first embodiment of a cooling mechanism for a CNC engraving machine provided by this utility model;

[0021] Figure 2 for Figure 1 The diagram shows the rear side structure.

[0022] Figure 3 This is a schematic diagram of the second embodiment of a cooling mechanism for a CNC engraving machine provided by this utility model.

[0023] The diagram is labeled as follows: 1. Support component, 11. Base, 12. Support plate, 13. Support frame.

[0024] 2. Engraving components, 21. Movable base, 22. Hydraulic telescopic rod, 23. Engraving knife.

[0025] 3. Connecting components; 31. Connecting slot; 32. Movable frame.

[0026] 4. Jet assembly; 41. Air extractor; 42. Air supply pipe; 43. Jet nozzle.

[0027] 5. Cooling components; 51. Condenser; 52. Infusion tubing; 53. Water spray nozzle; 54. Return tubing.

[0028] 6. Filter assembly; 61. Filter plate; 62. Storage box.

[0029] 7. Protective components; 71. Threaded rod; 72. Drive motor; 73. Protective cover. Detailed Implementation

[0030] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0031] First Embodiment

[0032] Please refer to the following: Figure 1 and Figure 2 ,in, Figure 1 A schematic diagram of the structure of a first embodiment of a cooling mechanism for a CNC engraving machine provided by this utility model; Figure 2 for Figure 1 The diagram shows the rear side structure. A cooling mechanism for a CNC engraving machine includes: a support assembly 1, the support assembly 1 including a base 11, a support plate 12 fixedly connected inside the base 11, and a support frame 13 fixedly connected to the outer surface of the base 11;

[0033] The carving component 2 is disposed on the top of the support plate 12, and the carving component 2 includes a movable base 21, a hydraulic telescopic rod 22 and a carving knife 23;

[0034] A connecting component 3 is disposed on the surface of the movable base 21, and the connecting component 3 includes a connecting groove 31 and a movable frame 32;

[0035] The jet assembly 4 is disposed on the top of the support plate 12, and the jet assembly 4 includes an air pump 41, an air supply pipe 42, and a jet head 43;

[0036] Cooling assembly 5, which is disposed on the top of the support plate 12, includes a condensation tank 51, an infusion pipe 52, a water spray head 53, and a return pipe 54;

[0037] The filter assembly 6 is disposed on the surface of the base 11, and the filter assembly 6 includes a filter plate 61 and a storage box 62.

[0038] The base 11 is square in shape with a groove inside. The support plate 12 is fixedly connected to the inside of the base 11 to support the workpiece. The support frame 13 is U-shaped and consists of two plates with a bracket fixedly connected to the top. The two plates are fixedly connected to the outer surfaces of the left and right ends of the base 11. The engraving component 2 is used to engrave the workpiece. The connecting component 3 is connected to the engraving component 2 to realize the movement of the air jet head 43 and the water jet head 53. The air jet component 4 is used to spray air onto the engraving knife 23. The cooling component 5 is used to spray coolant onto the surface of the engraving knife 23. The filter component 6 is used to filter the coolant.

[0039] The movable base 21 is movably connected to the top surface of the support frame 13, the hydraulic telescopic rod 22 is fixedly installed inside the movable base 21, and the carving knife 23 is fixedly installed at the bottom of the hydraulic telescopic rod 22.

[0040] The support frame 13 has a slide rail inside the top support seat. The surface of the movable seat 21 is fixedly connected to a slider, which is movably connected to the slide rail. Driven by a motor, the movable seat 21 can move left and right. The carving knife 23 is fixedly installed at the bottom of the telescopic rod in the hydraulic telescopic rod 22. The carving knife 23 can be moved up and down by the extension and retraction of the hydraulic telescopic rod 22.

[0041] The connecting groove 31 is fixedly connected to both ends of the movable base 21 near the bottom, and the two ends of the movable frame 32 are movably connected to the inside of the connecting groove 31.

[0042] There are two connecting slots 31, which are fixedly connected to the outer surfaces of the movable base 21 near the bottom left and right ends respectively. Each of the two connecting slots 31 has a groove. The two ends of the movable frame 32 are slidably embedded in the two grooves respectively. The fixed bottom is fixedly connected to the bottom of the telescopic rod in the hydraulic telescopic rod 22. So when the hydraulic telescopic rod 22 extends or retracts, the two ends of the movable frame 32 can slide up and down in the two grooves, thereby realizing the up and down movement of the movable frame 32.

[0043] The air pump 41 is fixedly connected to the top of the support frame 13, one end of the air supply pipe 42 is fixedly connected to the surface of the air pump 41, the jet head 43 is fixedly connected to the other end of the air supply pipe 42, and the jet head 43 is fixedly installed on the surface of the movable frame 32.

[0044] The air extractor 41 draws in external air and then discharges the air into the air supply pipe 42. After being transported through the air supply pipe 42, the air is ejected from the jet head 43 onto the carving knife 23, which accelerates the dissipation of heat from the surface of the carving knife 23 and reduces the adhesion of chips to the carving knife 23.

[0045] The condenser 51 is fixedly connected to the top of the support frame 13, one end of the infusion tube 52 is fixedly connected to the surface of the condenser 51, the water spray head 53 is fixedly connected to the other end of the infusion tube 52, and the water spray head 53 is fixedly installed on the surface of the movable frame 32.

[0046] The condenser 51 has condenser tubes arranged inside. The condenser tubes cool the coolant inside the condenser 51. The coolant is then transported through the liquid delivery pipe 52 and sprayed from the spray nozzle 53 onto the surface of the engraving knife 23. The coolant absorbs the heat from the surface of the engraving knife 23.

[0047] The filter plate 61 is fixedly installed on the inner surface of the base 11, and the storage box 62 is fixedly connected to the left and right ends of the base 11.

[0048] There are two filter plates 61, which are fixedly connected to the base 11 at the left and right ends of the support plate 12 respectively. The two filter plates 61 are tilted to the left and right ends respectively. The coolant falling onto the surface of the filter plate 61 falls into the interior of the base 11 through the filter plate 61, while the impurities fall into the interior of the two storage tanks 62 along the surface of the filter plate 61.

[0049] The working principle of the cooling mechanism for a CNC engraving machine provided by this utility model is as follows:

[0050] First, place the workpiece on the support plate 12. Then, activate the hydraulic telescopic rod 22 to move the engraving knife 23 downward. The drive component at the top of the support frame 13 moves the moving seat 21 left and right. The engraving knife 23 rotates to engrave the workpiece. During this process, through the connection between the moving frame 32 and the connecting groove 31, the air jet head 43 and the water jet head 53 move left and right with the moving seat 21. Through the connection between the moving frame 32 and the hydraulic telescopic rod 22, the air jet head 43 and the water jet head 53 move up and down to spray air and water onto the engraving knife 23, thereby cooling the engraving knife 23. The coolant falls onto the filter plate 61 and is filtered into the interior of the base 11 through the filter plate 61. Then, it is transported back to the interior of the condenser box 51 for cooling through the return pipe 54. The chips fall down the surface of the filter plate 61 into the interior of the storage box 62.

[0051] Compared with related technologies, the cooling mechanism for a CNC engraving machine provided by this utility model has the following beneficial effects:

[0052] This utility model provides a cooling mechanism for a CNC engraving machine. During the processing, the movement of the movable seat 21 and the engraving knife 23 can drive the jet head 43 and the water spray head 53 to spray air and water to the key parts. The filter assembly 6 can filter the condensate and recycle it, which improves the cooling efficiency and processing accuracy.

[0053] Second Embodiment

[0054] Please refer to the following: Figure 3 Based on the cooling mechanism for a CNC engraving machine provided in the first embodiment of this application, the second embodiment of this application proposes another cooling mechanism for a CNC engraving machine. The second embodiment is merely a preferred embodiment of the first embodiment, and the implementation of the second embodiment will not affect the separate implementation of the first embodiment.

[0055] Specifically, the second embodiment of this application provides a cooling mechanism for a CNC engraving machine that differs in that the cooling mechanism for a CNC engraving machine has a protective component 7 on the surface of the base 11. The protective component 7 includes a threaded rod 71, which is movably connected to one end of the base 11. A drive motor 72 is fixedly connected to the top of the threaded rod 71, and a protective cover 73 is threadedly connected to the surface of the threaded rod 71.

[0056] The threaded rod 71 is rotatably connected to the left end of the base 11, and a rod is fixedly connected to the right end of the base 11. The protective cover 73 is U-shaped, and a U-shaped groove is opened inside the base 11. When not in operation, the protective cover 73 can be embedded in the groove. Two pieces are fixedly connected to both the left and right ends of the protective cover 73. The two pieces are respectively threaded to the surface of the threaded rod 71 and slidably connected to the surface of the connecting rod. When the drive motor 72 is started, the threaded rod 71 rotates, and the two pieces drive the protective cover 73 to move upward, thereby protecting the inside of the base 11.

[0057] The working principle of the cooling mechanism for a CNC engraving machine provided by this utility model is as follows:

[0058] Before processing, the workpiece is placed on the support plate 12, and then the drive motor 72 is started to drive the threaded rod 71 to rotate. The protective cover 73 moves upward, and the position of the engraving knife 23 is blocked inside the base 11 by the coolant sprayed by the water spray head 53 during processing.

[0059] Compared with related technologies, the cooling mechanism for a CNC engraving machine provided by this utility model has the following beneficial effects:

[0060] This utility model provides a cooling mechanism for a CNC engraving machine. The rotation of the threaded rod 71 can drive the protective cover 73 to move upward, protecting the inside of the base 11 and preventing coolant from spraying out.

[0061] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A cooling mechanism for a CNC engraving machine, characterized in that, Includes: a support assembly, the support assembly including a base, a support plate fixedly connected inside the base, and a support frame fixedly connected to the outer surface of the base; The carving assembly is disposed on the top of the support plate, and the carving assembly includes a movable base, a hydraulic telescopic rod, and a carving knife; A connecting component is disposed on the surface of the movable base, the connecting component including a connecting groove and a movable frame; A jet assembly, which is disposed on the top of the support plate, includes an air pump, an air delivery pipe, and a jet head; A cooling assembly is disposed on the top of the support plate, and the cooling assembly includes a condensation tank, an infusion pipe, a water spray head, and a return pipe; A filter assembly is disposed on the surface of the base, and the filter assembly includes a filter plate and a storage box.

2. The cooling mechanism for a CNC engraving machine according to claim 1, characterized in that, The movable seat is movably connected to the surface of the top of the support frame, the hydraulic telescopic rod is fixedly installed inside the movable seat, and the carving knife is fixedly installed at the bottom of the hydraulic telescopic rod.

3. A cooling mechanism for a CNC engraving machine according to claim 1, characterized in that, The connecting groove is fixedly connected to both ends of the movable base near the bottom, and the two ends of the movable frame are movably connected to the inside of the connecting groove.

4. A cooling mechanism for a CNC engraving machine according to claim 1, characterized in that, The air pump is fixedly connected to the top of the support frame, one end of the air supply pipe is fixedly connected to the surface of the air pump, the jet head is fixedly connected to the other end of the air supply pipe, and the jet head is fixedly installed on the surface of the movable frame.

5. A cooling mechanism for a CNC engraving machine according to claim 1, characterized in that, The condenser is fixedly connected to the top of the support frame, one end of the infusion tube is fixedly connected to the surface of the condenser, the water spray head is fixedly connected to the other end of the infusion tube, and the water spray head is fixedly installed on the surface of the movable frame.

6. A cooling mechanism for a CNC engraving machine according to claim 1, characterized in that, The filter plate is fixedly installed on the inner surface of the base, and the storage box is fixedly connected to the left and right ends of the base.

7. A cooling mechanism for a CNC engraving machine according to claim 1, characterized in that, The base has a protective component on its surface. The protective component includes a threaded rod that is movably connected to one end of the base. A drive motor is fixedly connected to the top of the threaded rod, and a protective cover is threaded onto the surface of the threaded rod.