Gantry machining center capable of cooling main shaft

Abstract

The utility model provides a gantry machining center capable of cooling a main shaft, and belongs to the technical field of machining equipment. Comprising a machining center main cabinet and a machining center main shaft, a portal frame is arranged at the top of the machining center main cabinet, a sliding seat is assembled on the portal frame, and the machining center main shaft is assembled at the bottom of the sliding seat; frames are arranged on the two sides of the sliding base, fans are assembled in the frames, an air cooling ring is hung at the bottoms of the frames, the air cooling ring is arranged on a machining center main shaft in a sleeving mode, the air cooling ring and the machining center main shaft are coaxially arranged, and a plurality of air taps are arranged on the inner circle face of the air cooling ring and evenly distributed around the sliding base. The utility model has efficient heat dissipation performance, and avoids the problems of reduced workpiece processing precision, short service life of the bearing and the like caused by heat accumulation of the main shaft of the processing center in the workpiece processing process.

Description

Technical Field

[0001] This utility model relates to the field of machining equipment technology, and in particular to a gantry machining center that can cool the spindle. Background Technology

[0002] Gantry machining centers, as high-precision CNC machine tools, are widely used in aerospace, shipbuilding, and heavy machinery industries. Their spindle system, as a core component, needs to operate for extended periods under high speed and high load conditions. However, the spindle system faces significant heat accumulation issues during high-speed cutting and heavy-duty machining. Spindle overheating can easily lead to thermal deformation, affecting the relative positional accuracy of the tool and workpiece, thus reducing the quality of the machined surface. Furthermore, prolonged high-temperature operation accelerates the wear of critical components such as bearings and seals, shortening the overall lifespan of the equipment.

[0003] Traditional machining centers typically use air cooling, which involves forced airflow towards the spindle for heat dissipation. While this method is low-cost, the airflow is unidirectional and concentrated, resulting in limited heat dissipation efficiency and making it difficult to meet the heat demands generated by high-speed cutting. Therefore, this application provides a gantry machining center that can cool the spindle to meet these requirements. Utility Model Content

[0004] The technical problem to be solved by this invention is to provide a gantry machining center that can cool the spindle in order to solve the problem of poor heat dissipation efficiency of the spindle in existing machining centers.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution:

[0006] A gantry machining center capable of cooling the spindle includes a machining center main cabinet and a machining center spindle. A gantry frame is installed on the top of the machining center main cabinet, and a slide is mounted on the gantry frame. The machining center spindle is mounted on the bottom of the slide. Frames are provided on both sides of the slide, and fans are installed in the frames. A pair of air-cooling rings are suspended from the bottom of the frames. The air-cooling rings are sleeved on the machining center spindle and arranged coaxially with the machining center spindle. Multiple air nozzles are provided on the inner circular surface of the air-cooling rings, and the multiple air nozzles are evenly distributed around the slide.

[0007] Optionally, the air-cooling ring is located at the bottom end of the machining center spindle.

[0008] Optionally, the multiple air nozzles are arranged at an angle toward the same direction of rotation.

[0009] Optionally, each of the two frames is vertically fixed to a hanger at its bottom, with the bottom end of the hanger connected to the air-cooling ring.

[0010] Optionally, the frame is provided with mesh at the top and bottom.

[0011] Optionally, the air-cooling ring has an air passage inside, the air passage is arranged in a circle around the air-cooling ring, multiple air nozzles are connected to the air passage, and an air inlet is provided on the side wall of the air-cooling ring, the air inlet is connected to the air passage.

[0012] Optionally, the slide is movably mounted inside the gantry frame, and the gantry frame is provided with a drive mechanism for driving the slide to translate.

[0013] Optionally, the gantry includes telescopic arms vertically mounted at both ends of the top of the machining center's main cabinet and shell arms horizontally mounted on the top of a pair of telescopic arms.

[0014] Optionally, the telescopic arm is electrically driven to lift and lower the shell arm.

[0015] Optionally, the slide block is slidably mounted on the bottom of the housing arm, and a drive block is provided on the upper surface of the slide block. The drive block is slidably embedded in the housing arm. The drive mechanism includes a lead screw rotatably mounted in the housing arm and a drive motor mounted at the end of the housing arm. The drive motor drives the lead screw to rotate, and the drive block is threadedly engaged with the lead screw.

[0016] Compared with the prior art, this utility model has at least the following beneficial effects:

[0017] In the above scheme, by setting up the air-cooling ring and fan, during the workpiece processing, the high-pressure airflow enters the air passage through the air inlet and is dispersed to multiple air nozzles to blow towards the machining center spindle. At the same time, the fan in the frame is activated to draw air upward. The heat generated on the workpiece surface of the machining center spindle can be quickly dissipated by the airflow blown out by multiple air nozzles and the exhaust by the fan, thus achieving efficient heat dissipation of the machining center spindle.

[0018] By arranging multiple air nozzles at an angle towards the same direction of rotation, compressed air is blown out through these nozzles, forming multiple airflows that surround the machining center spindle. Combined with the suction of the fan, these multiple airflows spiral upwards around the machining center spindle. By controlling the machining center spindle to rotate on the side opposite to the angle of the air nozzles, the multiple airflows spiral upwards around the machining center spindle, generating convection with the heat on the surface of the machining center spindle. The heat is then carried away and powerfully dissipated by the airflow, resulting in highly efficient heat dissipation performance. This avoids problems such as decreased machining accuracy and shortened bearing life caused by heat accumulation on the machining center spindle during workpiece processing. Attached Figure Description

[0019] The accompanying drawings, which are incorporated herein and form part of the specification, illustrate embodiments of the present invention and, together with the specification, further serve to explain the principles of the present invention and enable those skilled in the art to implement and use the present invention.

[0020] Figure 1This is a schematic diagram of the overall structure of this utility model;

[0021] Figure 2 This is a schematic diagram of the structure of the slide and machining center spindle of this utility model;

[0022] Figure 3 This is a schematic diagram of the structure of the air-cooling ring of this utility model;

[0023] Figure 4 This is a top view of the air-cooled ring of this utility model;

[0024] Figure 5 This is a cross-sectional view of the air-cooling ring of this utility model.

[0025] Figure label:

[0026] 1. Machining center main cabinet; 2. Gantry frame; 3. Slide; 4. Machining center spindle; 5. Air-cooled ring; 6. Telescopic arm; 7. Housing arm; 8. Drive motor; 9. Frame; 10. Hanging rod; 11. Fan; 12. Drive block; 13. Lead screw; 14. Air inlet; 15. Air nozzle; 16. Air duct.

[0027] As shown in the figure, specific structures and devices are marked in the figure to clearly illustrate the structure of the embodiment of this utility model. However, this is only for illustrative purposes and is not intended to limit this utility model to this specific structure, device and environment. Those skilled in the art can adjust or modify these devices and environments according to specific needs. Detailed Implementation

[0028] The following is a detailed description of a gantry machining center capable of cooling the spindle, provided by this utility model, with reference to the accompanying drawings and specific embodiments. It should be noted that, to make the embodiments more detailed, the following embodiments are the best and preferred embodiments; those skilled in the art can also use other alternative methods to implement some known technologies; and the accompanying drawings are only for more specific description of the embodiments and are not intended to specifically limit this utility model.

[0029] It should be noted that the use of terms such as "an embodiment," "an embodiment," "an exemplary embodiment," and "some embodiments" in the specification indicates that the described embodiment may include a specific feature, structure, or characteristic, but not every embodiment necessarily includes that specific feature, structure, or characteristic. Furthermore, when a specific feature, structure, or characteristic is described in connection with an embodiment, implementing such a feature, structure, or characteristic in conjunction with other embodiments (whether explicitly described or not) should be within the knowledge of those skilled in the art.

[0030] Generally, terms can be understood at least partly from their use in context. For example, depending at least partly on the context, the term "one or more" as used herein can be used to describe any feature, structure, or characteristic in a singular sense, or a combination of features, structures, or characteristics in a plural sense. Additionally, the term "based on" can be understood not necessarily to convey an exclusive set of factors, but rather, alternatively, depending at least partly on the context, to allow for the presence of other factors that are not necessarily explicitly described.

[0031] It is understood that the meanings of “on”, “above”, and “above” in this utility model should be interpreted in the broadest manner, such that “on” not only means “directly on” something, but also includes the meaning of being “on” something with an intervening feature or layer, and that “above” or “above” not only means “on” something, but also includes the meaning of being “on” something without an intervening feature or layer.

[0032] Furthermore, spatially related terms such as “below,” “under,” “lower,” “above,” and “upper” are used herein for convenience to describe the relationship of one element or feature to one or more other elements or features, as illustrated in the accompanying drawings. Spatially related terms are intended to cover different orientations in the use or operation of the device other than those depicted in the accompanying drawings. The device may be oriented in other ways, and the spatially related descriptive terms used herein can be interpreted similarly.

[0033] like Figure 1 , Figure 2 and Figure 3As shown, an embodiment of this utility model provides a gantry machining center capable of cooling the spindle, including a machining center main cabinet 1 and a machining center spindle 4. A gantry frame 2 is provided on the top of the machining center main cabinet 1, and a slide 3 is mounted on the gantry frame 2. The machining center spindle 4 is mounted on the bottom of the slide 3. Frames 9 are provided on both sides of the slide 3, and fans 11 are mounted inside the frames 9. The top and bottom of the frames 9 are provided with partitions to protect the fans 11. Air-cooling rings 5 ​​are suspended at the bottom of a pair of frames 9. Specifically, a hanging rod 10 is vertically fixed at the bottom of each pair of frames 9, and the bottom end of the hanging rod 10 is connected to the air-cooling ring 5. The air-cooling ring 5 is mounted on the machining center spindle 4 and arranged coaxially with the machining center spindle 4. Multiple air nozzles 15 are provided on the inner circular surface of the air-cooling ring 5. The multiple air nozzles 15 are evenly distributed around the slide block 3. Through the arrangement of the air-cooling ring 5 and the fan 11, during the machining of the workpiece, the high-pressure airflow enters the air passage 16 through the air inlet 14 and is dispersed to the multiple air nozzles 15 and blown towards the machining center spindle 4. At the same time, the fan 11 in the frame 9 is activated to draw air upward. The heat generated on the surface of the workpiece of the machining center spindle 4 can be quickly dissipated under the blowing of the airflow from the multiple air nozzles 15 and the exhaust of the fan 11, so as to achieve efficient heat dissipation of the machining center spindle 4.

[0034] like Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, the air-cooling ring 5 is located at the bottom of the machining center spindle 4 and can blow airflow from the bottom of the machining center spindle 4 to dissipate heat. Multiple air nozzles 15 are arranged at an angle towards the same direction of rotation. The air-cooling ring 5 has an air passage 16 inside, which surrounds the air-cooling ring 5. Multiple air nozzles 15 are connected to the air passage 16. An air inlet 14 is provided on the side wall of the air-cooling ring 5, which is connected to the air passage 16. The air inlet 14 is connected to an air source device such as an air compressor through a hose, so that air can be supplied to multiple air nozzles 15 through the air passage 16, reducing the wiring layout. Since multiple air nozzles 15 are arranged at an angle towards the same direction of rotation, when compressed air is blown out through multiple air nozzles 15, it can form multiple airflows surrounding the machining center spindle 4. With the suction of the fan 11, multiple airflows spiral upward around the machining center spindle 4. Then, by controlling the machining center spindle 4 to rotate on the side opposite to the angle of the air nozzles 15, multiple airflows spiral upward around the machining center spindle 4, generating convection with the heat on the surface of the machining center spindle 4. The heat can be carried away and strongly dissipated by the airflow, which has a high efficiency in heat dissipation.

[0035] like Figure 1 and Figure 2As shown, the slide block 3 is movably assembled inside the gantry frame 2. The gantry frame 2 is equipped with a drive mechanism for driving the slide block 3 to move horizontally. The gantry frame 2 includes telescopic support arms 6 vertically installed at both ends of the top of the machining center main cabinet 1 and shell arms 7 horizontally assembled at the top of a pair of telescopic support arms 6. The telescopic support arms 6 are electrically driven to lift and lower the shell arms 7 to adjust the machining height. The slide block 3 is slidably assembled at the bottom of the shell arms 7. A drive block 12 is provided on the upper surface of the slide block 3. The drive block 12 is slidably embedded in the shell arms 7. The drive mechanism includes a lead screw 13 rotatably installed in the shell arms 7 and a drive motor 8 installed at the end of the shell arms 7. The drive motor 8 drives the lead screw 13 to rotate. The drive block 12 is threadedly engaged with the lead screw 13. The drive motor 8 drives the lead screw 13 to rotate, causing the drive block 12 to drive the slide block 3 to move horizontally to adjust the machining position.

[0036] The workflow of the technical solution provided by this utility model is as follows:

[0037] In use, the air inlet 14 is connected to an air source device such as an air compressor via a hose. During the machining process where the machining center spindle 4 drives the cutting head to rotate and process the workpiece, the high-pressure airflow enters the air passage 16 through the air inlet 14 and is then dispersed to multiple air nozzles 15 to blow onto the machining center spindle 4. At the same time, the fan 11 in the frame 9 is activated to draw air upwards. The heat generated on the surface of the workpiece on the machining center spindle 4 can be quickly dissipated by the airflow from the multiple air nozzles 15 and the exhaust from the fan 11, achieving efficient heat dissipation for the machining center spindle 4. Furthermore, because the multiple air nozzles 15 are arranged at an angle towards the same direction of rotation... When compressed air is blown out through multiple nozzles 15, it can form multiple airflows surrounding the machining center spindle 4. With the suction of the fan 11, the multiple airflows spiral upward around the machining center spindle 4. Then, by controlling the machining center spindle 4 to rotate on the side opposite to the tilt direction of the nozzles 15, the multiple airflows spiral upward around the machining center spindle 4 and generate convection with the heat on the surface of the machining center spindle 4. The heat can be carried away and strongly dissipated by the airflow, which has efficient heat dissipation performance and avoids the problems of heat accumulation on the machining center spindle 4 during workpiece processing, which leads to decreased workpiece processing accuracy and shortened bearing life.

[0038] This utility model encompasses any substitutions, modifications, equivalent methods, and solutions made within the spirit and scope of this utility model. To provide the public with a thorough understanding of this utility model, specific details are described in detail in the following preferred embodiments; however, those skilled in the art will fully understand this utility model even without these detailed descriptions. Furthermore, to avoid unnecessary confusion regarding the essence of this utility model, well-known methods, processes, procedures, components, and circuits are not described in detail.

[0039] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A gantry machining center capable of cooling the spindle, comprising a machining center main cabinet and a machining center spindle, wherein a gantry frame is provided on the top of the machining center main cabinet, characterized in that: The gantry frame is equipped with a slide block, and the machining center spindle is mounted on the bottom of the slide block; The slide is provided with frames on both sides, and fans are installed inside the frames. A pair of air-cooling rings are suspended at the bottom of the frames. The air-cooling rings are sleeved on the spindle of the machining center and arranged coaxially with the spindle. Multiple air nozzles are provided on the inner circular surface of the air-cooling rings, and the multiple air nozzles are evenly distributed around the slide.

2. The gantry machining center capable of cooling the spindle according to claim 1, characterized in that, The air-cooling ring is located at the bottom end of the machining center spindle.

3. The gantry machining center capable of cooling the main shaft according to claim 1, characterized in that, The multiple air nozzles are arranged at an angle toward the same direction of rotation.

4. The gantry machining center capable of cooling a main shaft according to claim 1, wherein, Each pair of frames is vertically fixed to a hanger at its bottom, with the bottom end of the hanger connected to the air-cooling ring.

5. The gantry machining center capable of cooling a main shaft according to claim 1, wherein, The frame is equipped with mesh at the top and bottom.

6. The gantry machining center capable of cooling a main shaft according to claim 1, wherein, The air-cooling ring has an air passage inside, which is arranged in a circle around the air-cooling ring. Multiple air nozzles are connected to the air passage. An air inlet is provided on the side wall of the air-cooling ring, and the air inlet is connected to the air passage.

7. The gantry-type machining center capable of cooling a main shaft according to claim 1, wherein The slide block is movably assembled inside the gantry frame, and the gantry frame is provided with a drive mechanism for driving the slide block to move.

8. The gantry machining center capable of cooling the main shaft according to claim 7, characterized in that, The gantry includes telescopic arms that are vertically installed at both ends of the top of the machining center's main cabinet, and shell arms that are horizontally mounted on the top of a pair of telescopic arms.

9. The gantry machining center capable of cooling the main shaft according to claim 8, characterized in that, The telescopic outrigger is electrically driven to lift and lower the shell arm.

10. The gantry machining center capable of cooling the main shaft according to claim 8, characterized in that, The slide block is slidably mounted on the bottom of the housing arm. A drive block is provided on the upper surface of the slide block. The drive block is slidably embedded in the housing arm. The drive mechanism includes a lead screw rotatably mounted in the housing arm and a drive motor mounted at the end of the housing arm. The drive motor drives the lead screw to rotate. The drive block is threadedly engaged with the lead screw.

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