A heat dissipation structure of a numerical control machine tool

Abstract

The utility model discloses a heat dissipation structure of numerical control machine tool, including numerical control machine tool mainframe shell, the inside one end fixed mounting of numerical control machine tool mainframe shell has drive motor, and the end of drive motor is installed with drive main shaft through the shaft coupling, the outer surface of drive main shaft is provided with two protection shell, and two protection shell passes through bolt fixation, through design even heat dissipation mechanism, when drive main shaft produces heat when long -time work, will four refrigerator by same control switch control and open it, and the cold air enters the pipeline after the refrigeration of refrigerator, and the inside through the inclined through -hole even discharge to the surface of drive main shaft and contact, and the heat dissipation effect is better, thereby makes the cold air and facilitates the cooling of numerical control machine tool inside after the discharge of heat dissipation net, and the heat dissipation effect is more obvious and is not interfered with external factor, improves the heat dissipation structure installation in the inside protection shell and evenly heat dissipation treatment effect to drive main shaft.

Description

Technical Field

[0001] This utility model belongs to the field of heat dissipation structure technology, and specifically relates to a heat dissipation structure for CNC machine tools. Background Technology

[0002] A CNC machine tool is an automated machine tool equipped with a program control system. When working, the spindle and cutting tool are rotated and reinforced by an internal geared motor. Therefore, the spindle is prone to generating heat during long-term machining operations. Heat dissipation is usually achieved by installing a heat dissipation structure on the spindle. The existing heat dissipation structure is a device installed on the surface of the spindle inside the CNC machine tool for heat dissipation. Existing CNC machine tool drive spindles are equipped with protective shells, and circulating water pipes are installed inside the protective shells. The internal heat is carried away by the continuous circulation of water. However, the water cannot directly contact the spindle during heat dissipation, resulting in poor heat dissipation. Furthermore, scale buildup inside the circulating water pipes over time further reduces heat dissipation. Alternatively, an internal fan can be installed for cooling, but during prolonged operation, hot air accumulates around the inside of the CNC machine tool. Even with air circulation for cooling, this hot air is insufficient for effective heat dissipation. This affects the heat dissipation effect of the heat dissipation structure installed on the outer surface of the CNC machine tool spindle. Therefore, this utility model proposes a heat dissipation structure for CNC machine tools. Utility Model Content

[0003] The purpose of this utility model is to provide a heat dissipation structure for CNC machine tools, in order to solve the problems mentioned in the background art, such as installing a protective shell on the CNC machine tool drive spindle and installing a circulating water pipe inside the protective shell, which prevents direct contact with the spindle during heat dissipation, resulting in poor heat dissipation effect, and the accumulation of scale inside the circulating water pipe after long-term use, which further reduces heat dissipation effect; or installing a fan inside for drive heat dissipation, but at the same time, hot air has formed around the inside of the CNC machine tool during long-term operation, and the air circulation blowing at this time is not effective in dissipating the hot air.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a heat dissipation structure for a CNC machine tool, comprising a CNC machine tool main housing, a drive motor fixedly installed at one end inside the main housing, a drive spindle mounted at the end of the drive motor via a coupling, two protective shells provided on the outer surface of the drive spindle, the two protective shells being fixed by bolts, a mounting plate mounted on the outer surface of the drive spindle via bearings, the mounting plate being fixed to the end of the protective shells by bolts, and the protective shells further comprising: A uniform heat dissipation mechanism, which includes a cooling and heat dissipation component disposed at one end inside the protective shell, wherein the end of the cooling and heat dissipation component is provided with a uniformly discharged cooling component on the outer surface of the drive spindle. The convenient disassembly and assembly mechanism includes protective components disposed at both ends of the protective shell, and both ends of the upper surface of the protective shell are provided with downward locking components, and a rotation adjustment component is provided at the middle position of the downward locking components.

[0005] Preferably, the cooling and heat dissipation assembly includes two mounting cylinders fixedly installed at one end inside the protective shell via a connecting bracket. A cooler is fixed inside the mounting cylinder, and the cooler is electrically connected to the CNC machine tool controller via a wire.

[0006] Preferably, the uniform discharge cooling assembly includes a pipe fixedly mounted to the end of the mounting cylinder by screws, and the inner surface of the pipe has inclined through holes equidistantly opened on the side corresponding to the surface of the drive spindle.

[0007] Preferably, the protective component includes limiting mounting grooves formed at both ends of the protective shell, and a heat dissipation mesh is limited inside the limiting mounting groove, with elastic protrusions fixed at both ends of the heat dissipation mesh.

[0008] Preferably, the downward locking assembly includes movable slots formed at both ends of the upper surface of the protective shell, a U-shaped frame is embedded between the two movable slots, and the upper surface of the heat dissipation mesh is provided with locking slots that match the ends of the U-shaped frame at both ends.

[0009] Preferably, a limiting groove is formed on the inner side of the moving groove, and limiting sliders are welded to both ends of the U-shaped frame, and the limiting sliders are slidably connected to the inside of the limiting groove.

[0010] Preferably, the rotation adjustment assembly includes internally threaded holes at the midpoint of both ends of the upper surface of the protective shell, and a screw is mounted at the midpoint of the U-shaped frame via a bearing, with the bottom end of the screw connected to the internal thread of the internally threaded hole.

[0011] Compared with the prior art, the beneficial effects of this utility model are: By designing a uniform heat dissipation mechanism, when the drive spindle generates heat during long-term operation, four coolers are turned on by the same control switch. After cooling, the cool air enters the pipe and is evenly discharged to the surface of the drive spindle through inclined through holes inside the pipe, facilitating full contact heat dissipation and improving the heat dissipation effect. This allows the cool air to be discharged through the heat dissipation mesh, facilitating the cooling of the CNC machine tool's interior. The heat dissipation effect is more obvious and not affected by external factors. The heat dissipation structure installed inside the protective shell improves the uniform heat dissipation effect of the drive spindle. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This utility model Figure 1 Enlarged structural diagram of section A; Figure 3 This is a cross-sectional view of the protective shell, mounting cylinder, and cooler of this utility model. Figure 4 This is a schematic diagram of the drive spindle, protective shell, and pipeline structure of this utility model; Figure 5 This is a cross-sectional view of the installation location of the protective shell, heat dissipation mesh, and limiting mounting groove of this utility model. Figure 6 This utility model Figure 5 Enlarged structural diagram of section B; In the diagram: 101, CNC machine tool main housing; 102, drive motor; 103, protective shell; 1031, U-shaped frame; 1032, moving groove; 1033, screw; 1034, heat dissipation mesh; 1035, limit mounting groove; 1036, elastic protrusion; 1037, internal threaded hole; 1038, slot; 1039, limit slide groove; 1030, limit slider; 104, drive spindle; 1041, mounting cylinder; 1042, cooler; 1043, inclined through hole; 1044, pipe; 105, mounting plate. Detailed Implementation

[0013] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0014] Please see Figures 1 to 6 This utility model provides a technical solution: a heat dissipation structure for a CNC machine tool, including a CNC machine tool main housing 101. A drive motor 102 is fixedly installed at one end inside the CNC machine tool main housing 101. A drive spindle 104 is installed at the end of the drive motor 102 via a coupling. Two protective shells 103 are provided on the outer surface of the drive spindle 104, and the two protective shells 103 are fixed by bolts. A mounting plate 105 is installed on the outer surface of the drive spindle 104 via bearings. The mounting plate 105 is fixed to the end of the protective shell 103 by bolts. The protective shell 103 is also provided with: The uniform heat dissipation mechanism includes a cooling and heat dissipation component disposed at one end inside the protective shell 103. The end of the cooling and heat dissipation component is located on the outer surface of the drive spindle 104 and is provided with a uniformly dissipated cooling component. When the drive spindle 104 generates heat during long-term operation, the uniform heat dissipation mechanism can uniformly dissipate heat from the outer surface of the drive spindle 104, thereby improving the heat dissipation effect.

[0015] In order to facilitate the cooling and heat dissipation of cold air through the cooling and heat dissipation assembly, and to achieve convenient and effective heat dissipation, in this embodiment, preferably, the cooling and heat dissipation assembly includes two mounting cylinders 1041 fixedly installed inside one end of the protective shell 103 by a connecting bracket. A cooler 1042 is fixed inside the mounting cylinder 1041, and the cooler 1042 is electrically connected to the CNC machine tool controller through a wire. The four coolers 1042 are connected to the same control switch for start and stop control. After the cooler 1042 is installed inside the mounting cylinder 1041, the cooling and heat dissipation of cold air is achieved by the cooling of the cooler 1042.

[0016] In order to facilitate the uniform cooling of the outer surface of the drive spindle 104 by uniformly discharging the cooling assembly, in this embodiment, preferably, the uniform cooling assembly includes a pipe 1044 fixedly installed at the end of the mounting cylinder 1041 by screws. The inner surface of the pipe 1044 is provided with inclined through holes 1043 at equal intervals on the side surface corresponding to the surface of the drive spindle 104. After the cooler 1042 cools the internal air entering the pipe 1044, it can be uniformly discharged to the surface of the drive spindle 104 through the inclined through holes 1043 for cooling and heat dissipation.

[0017] The device includes a convenient disassembly and assembly mechanism, which includes protective components disposed at both ends of the protective shell 103. Both ends of the upper surface of the protective shell 103 are provided with downward locking components, and a rotation adjustment component is provided at the middle position of the downward locking components. The device allows for convenient disassembly and assembly of the heat dissipation mesh 1034 during use, making disassembly and cleaning convenient.

[0018] In order to facilitate air intake and exhaust at both ends and effectively dissipate heat through the protective component, in this embodiment, preferably, the protective component includes limiting mounting grooves 1035 formed at both ends of the protective shell 103. A heat dissipation mesh 1034 is limited inside the limiting mounting groove 1035. Both ends of the heat dissipation mesh 1034 are fixed with elastic protrusions 1036. The heat dissipation mesh 1034 can be limited and closed inside the limiting mounting groove 1035 by the elastic protrusions 1036, which facilitates installation.

[0019] To facilitate the secure installation of the heat dissipation mesh 1034 after it is closed by the downward locking assembly, in this embodiment, preferably, the downward locking assembly includes movable grooves 1032 formed at both ends of the upper surface of the protective shell 103. A U-shaped frame 1031 is embedded between the two movable grooves 1032. Both ends of the upper surface of the heat dissipation mesh 1034 are provided with locking slots 1038 that match the ends of the U-shaped frame 1031, allowing the ends of the U-shaped frame 1031 to be moved downwards within the movable grooves 1032 until... The bottom end of the U-shaped frame 1031 is moved down into the slot 1038 and fixedly installed. A limiting slide groove 1039 is opened on the inner side of the moving groove 1032. Limiting sliders 1030 are welded to both sides of the U-shaped frame 1031, and the limiting sliders 1030 are slidably connected to the inside of the limiting slide groove 1039. When the end of the U-shaped frame 1031 moves inside the moving groove 1032, it drives the limiting sliders 1030 to slide within the limiting slide groove 1039 for stable movement and adjustment.

[0020] In order to facilitate the downward movement and engagement of the U-shaped frame 1031 by means of the rotation adjustment component, in this embodiment, preferably, the rotation adjustment component includes an internal threaded hole 1037 opened at the middle position of both ends of the upper surface of the protective shell 103. A screw 1033 is installed at the middle position of the U-shaped frame 1031 by means of a bearing, and the bottom end of the screw 1033 is connected to the internal thread of the internal threaded hole 1037. Rotating the screw 1033 inside the internal threaded hole 1037 causes the end of the U-shaped frame 1031 to move downward inside the moving groove 1032, which facilitates downward movement and installation.

[0021] In this utility model, the refrigerator 1042 is model XD-36 single refrigerator.

[0022] The working principle and usage process of this utility model: Before use, the heat dissipation structure of this CNC machine tool is first installed. The mounting cylinder 1041 and the cooler 1042 are fixedly installed inside the protective shell 103. Then, the pipe 1044 is fixedly installed at the end of the mounting cylinder 1041. The inclined through hole 1043 corresponds to the surface of the drive spindle 104. After the two protective shells 103 are fixedly installed on the outer surface of the drive spindle 104 with bolts, the four coolers 1042 are turned on by the same control switch. After the cooler 1042 cools, the cold air enters the pipe 1044 and is evenly discharged to the surface of the drive spindle 104 through the inclined through hole 1043 inside the pipe 1044, which facilitates full contact heat dissipation and better heat dissipation effect. Thus, the cold air is discharged through the heat dissipation mesh 1034, which facilitates the cooling of the inside of the CNC machine tool. The heat dissipation effect is more obvious and is not affected by external factors. The heat dissipation structure installed inside the protective shell 103 provides a better uniform heat dissipation effect on the drive spindle 104. Before use, the heat dissipation structure is used to deform the elastic protrusion 1036 to squeeze and engage the heat dissipation mesh 1034 inside the limiting mounting groove 1035, and then rotate the screw 1033 inside the internal threaded hole 1037. When the screw 1033 is screwed in, it drives the U-shaped frame 1031 to move down inside the moving groove 1032. At the same time, the limiting slider 1030 limits the sliding inside the limiting groove 1039 until the U-shaped frame 1031 is stably moved down so that the bottom end is engaged inside the slot 1038 to fix it in place. This makes it convenient to fix and install the heat dissipation mesh 1034. After installation, if dust falls into the heat dissipation mesh 1034 and clogs it after long-term heat dissipation treatment, the heat dissipation mesh 1034 can be disassembled and cleaned by reversing the operation. The disassembly and cleaning are convenient, which improves the convenience of disassembly and cleaning of the heat dissipation mesh 1034 when the heat dissipation structure is fixed on the outer surface of the drive spindle 104 for heat dissipation treatment.

[0023] Although embodiments of the present invention have been shown and described (see the detailed description above), it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A heat dissipation structure for a CNC machine tool, comprising a CNC machine tool main housing (101), wherein a drive motor (102) is fixedly installed at one end inside the CNC machine tool main housing (101), and a drive spindle (104) is installed at the end of the drive motor (102) via a coupling; two protective shells (103) are provided on the outer surface of the drive spindle (104), and the two protective shells (103) are fixed by bolts; a mounting plate (105) is mounted on the outer surface of the drive spindle (104) via bearings, and the mounting plate (105) is fixed to the end of the protective shell (103) by bolts, characterized in that: The protective shell (103) is also provided with: The uniform heat dissipation mechanism includes a cooling heat dissipation component disposed at one end inside the protective shell (103), and the end of the cooling heat dissipation component is provided with a uniform discharge cooling component on the outer surface of the drive spindle (104). The convenient disassembly and assembly mechanism includes protective components disposed at both ends of the protective shell (103), and both ends of the upper surface of the protective shell (103) are provided with downward locking components, and a rotation adjustment component is provided at the middle position of the downward locking components.

2. The heat dissipation structure for a CNC machine tool according to claim 1, characterized in that: The cooling and heat dissipation assembly includes two mounting cylinders (1041) fixedly installed at one end inside the protective shell (103) by a connecting bracket. A cooler (1042) is fixed inside the mounting cylinder (1041), and the cooler (1042) is electrically connected to the CNC machine tool controller by a wire.

3. The heat dissipation structure for a CNC machine tool according to claim 2, characterized in that: The uniform discharge cooling assembly includes a pipe (1044) fixedly installed at the end of the mounting cylinder (1041) by screws. The inner surface of the pipe (1044) is provided with inclined through holes (1043) at equal intervals on the side surface corresponding to the surface of the drive spindle (104).

4. The heat dissipation structure for a CNC machine tool according to claim 1, characterized in that: The protective component includes limiting mounting grooves (1035) opened at both ends of the protective shell (103), and a heat dissipation mesh (1034) is limited inside the limiting mounting groove (1035). Both ends of the heat dissipation mesh (1034) are fixed with elastic protrusions (1036).

5. The heat dissipation structure for a CNC machine tool according to claim 4, characterized in that: The lowering engagement assembly includes movable slots (1032) formed at both ends of the upper surface of the protective shell (103), and a U-shaped frame (1031) is embedded between the two movable slots (1032). The upper surface of the heat dissipation mesh (1034) is provided with slots (1038) that match the ends of the U-shaped frame (1031) at both ends.

6. The heat dissipation structure for a CNC machine tool according to claim 5, characterized in that: The inner side of the moving groove (1032) is provided with a limiting slide groove (1039), and the two ends of the U-shaped frame (1031) are welded with limiting sliders (1030), and the limiting sliders (1030) are slidably connected to the inside of the limiting slide groove (1039).

7. The heat dissipation structure for a CNC machine tool according to claim 5, characterized in that: The rotation adjustment assembly includes an internal threaded hole (1037) at the middle position of both ends of the upper surface of the protective shell (103). A screw (1033) is installed at the middle position of the U-shaped frame (1031) via a bearing, and the bottom end of the screw (1033) is connected to the internal thread of the internal threaded hole (1037).

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