Main shaft cooling structure of gantry machining center

Abstract

The utility model relates to the technical field of machining centers, and discloses a gantry machining center spindle cooling structure which comprises a gantry machining center body, a spindle is arranged in an inner cavity of the gantry machining center body, a cooling assembly is arranged on the surface of the spindle in a sleeved mode, and the cooling assembly comprises a cooling cylinder. And heat dissipation boxes are arranged on the two sides of the cooling cylinder. According to the gantry machining center, by arranging the gantry machining center body, a workpiece can be machined through the main shaft, cooling liquid in the cooling cylinder can be used for cooling when the main shaft is machined through the cooling assembly, the cooling liquid for cooling the main shaft can be circulated through the upper circulating pipe, the lower circulating pipe, the U-shaped pipe and the circulating pump, the cooling effect is improved, and the machining efficiency is improved. And through the arrangement of a motor, a driving gear, a transmission rod and a driven gear, fan blades can be driven to rotate, cooling liquid circulating in the U-shaped pipe can be subjected to heat dissipation treatment, and the situation that the cooling effect on the main shaft is affected due to temperature rise of the cooling liquid is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of machining centers, in particular to a spindle cooling structure of a gantry machining center. Background Technique

[0002] A gantry machining center refers to a machining center with a spindle axis perpendicular to the workbench. Its overall structure is a gantry frame, composed of double columns and a top beam, and there is also a crossbeam in the middle. It is especially suitable for machining large workpieces and workpieces with complex shapes. During machining, the temperature of the center and the machined workpiece is very high, so cooling is carried out during machining.

[0003] For example, a spindle cooling system of a vertical machining center provided by the authorized patent No. CN215035901U includes a spindle box. A spindle main body is rotatably connected at the center of the spindle box, and two first clamping grooves are fixedly connected to the top inside the spindle box. In the utility model, high-temperature air near the spindle main body is pumped into the U-shaped tube by an air pump. When it is cooled in the coolant, the air is dispersed through a wire mesh cover to form more bubbles, increasing the cooling efficiency of the hot air. The staff changes the area of the connection between the first through hole and the second through hole by screwing the bolt. When the overlapping area of the first through hole and the second through hole is small, the wind force is large at this time, which is used to quickly cool the spindle main body. When the overlapping area of the first through hole and the second through hole is large, the wind force of the cooling air flow is softer, which is convenient for continuously cooling the spindle main body. This design structure is flexible, greatly improving the heat dissipation efficiency of the spindle main body and extending the service life of the spindle main body to a certain extent.

[0004] However, the above-mentioned disclosed patent has the problem that the cooling effect is prone to deteriorate due to the rise of the coolant temperature after long-term work, thus reducing the practicability of the system. Content of the Utility Model

[0005] Aiming at the problems existing in the prior art, the purpose of the utility model is to provide a spindle cooling structure of a gantry machining center to solve the problems put forward in the above background technique.

[0006] To achieve the above purpose, the utility model provides the following technical scheme: A spindle cooling structure of a gantry machining center, including a gantry machining center main body. A spindle is arranged in the inner cavity of the gantry machining center main body. A cooling component is sleeved on the surface of the spindle. The cooling component includes a cooling cylinder. Heat dissipation boxes are arranged on both sides of the cooling cylinder. The inner cavity of the cooling cylinder is filled with coolant. The top and bottom of both sides of the cooling cylinder are respectively communicated with an upper circulation pipe and a lower circulation pipe. The other ends of the upper circulation pipe and the lower circulation pipe both penetrate through the heat dissipation box and are communicated with a U-shaped pipe. A circulation pump is communicated with the surface of the upper circulation pipe;

[0007] The inner cavity of the heat dissipation box is provided with a heat dissipation component, the heat dissipation component includes a motor, the output shaft of the motor penetrates the heat dissipation box and is fixedly connected with a driving gear, the top and bottom of the opposite sides of the inner cavity of the two heat dissipation boxes are both movably connected by bearings with a transmission rod, the surface of the transmission rod is provided with a driven gear and a fan blade, and the driving gear meshes with the driven gear.

[0008] By adopting the above technical solutions, by setting the main body of the gantry machining center, the workpiece can be machined by using the main shaft. Through the setting of the cooling component, when the main shaft is being machined, the coolant in the cooling cylinder can be used for cooling. The setting of the upper circulation pipe, the lower circulation pipe, the U-shaped pipe and the circulation pump can circulate the coolant for cooling the main shaft, improving the cooling effect. Through the setting of the motor, the driving gear, the transmission rod and the driven gear, the fan blade can be driven to rotate, and the coolant circulating in the U-shaped pipe can be cooled, avoiding the influence on the cooling effect of the main shaft due to the rise of the coolant temperature.

[0009] Preferably, both sides of the main shaft are fixedly connected with fixing rods, and the top and bottom of the fixing rods are both fixedly connected with stirring rods.

[0010] By adopting the above technical solutions, the coolant in the cooling cylinder can be stirred, increasing the heat exchange area of the coolant, so as to realize the cooling of the main shaft.

[0011] Preferably, the top and bottom of both sides of the cooling cylinder are fixedly connected with connecting blocks, and the other ends of the connecting blocks are fixedly connected with the heat dissipation box.

[0012] By adopting the above technical solutions, it is convenient to fix the two heat dissipation boxes.

[0013] Preferably, heat dissipation openings are provided on both sides of the inner cavity of the two heat dissipation boxes, and a dust-proof net is arranged in the inner cavity of the heat dissipation openings.

[0014] By adopting the above technical solutions, it is convenient for the air in the heat dissipation box to circulate, improving the heat dissipation effect on the coolant in the U-shaped pipe.

[0015] Preferably, sealing bearings are embedded at the top and bottom of the inner cavity of the cooling cylinder, and the main shaft is in close fit with the sealing bearings.

[0016] Preferably, a processing opening is provided on the surface of the main body of the gantry machining center.

[0017] By adopting the above technical solutions, it is convenient for the machining of the workpiece.

[0018] Preferably, both sides of the bottom of the main body of the gantry machining center are fixedly connected with support legs, and the bottom of the support legs is fixedly connected with a support.

[0019] By adopting the above technical solution, the gantry machining center can be supported.

[0020] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0021] In the present utility model, by providing the gantry machining center main body, the workpiece can be machined by the main shaft. Through the provision of the cooling assembly, when the main shaft is machining, the coolant in the cooling cylinder can be used for cooling. And the provision of the upper circulation pipe, the lower circulation pipe, the U-shaped pipe and the circulation pump can circulate the coolant for cooling the main shaft, improving the cooling effect. Through the provision of the motor, the driving gear, the transmission rod and the driven gear, the fan blade can be driven to rotate, and the coolant circulating in the U-shaped pipe can be radiated, avoiding the influence on the cooling effect of the main shaft due to the rise of the coolant temperature. Description of the Drawings

[0022] Figure 1 is a schematic structural diagram of the present utility model;

[0023] Figure 2 is a perspective view of the cooling cylinder and the heat dissipation box in the structure of the present utility model;

[0024] Figure 3 is a cross-sectional view of the cooling cylinder and the heat dissipation box in the structure of the present utility model;

[0025] Figure 4 is the structure of the present utility model Figure 3 is a partial enlarged view of part A in the structure.

[0026] In the figure: 1, gantry machining center main body; 2, main shaft; 3, cooling assembly; 301, cooling cylinder; 302, heat dissipation box; 303, coolant; 304, upper circulation pipe; 305, lower circulation pipe; 306, U-shaped pipe; 307, circulation pump; 4, heat dissipation assembly; 401, motor; 402, driving gear; 403, transmission rod; 404, driven gear; 405, fan blade; 5, fixing rod; 6, stirring rod; 7, connecting block; 8, dust-proof net; 9, sealing bearing; 10, processing port; 11, support leg. Detailed Embodiments

[0027] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model.

[0028] Embodiment 1:

[0029] Please refer to Figures 1-4, A main shaft cooling structure for a gantry machining center, comprising a gantry machining center main body 1. Inside the cavity of the gantry machining center main body 1, there is a main shaft 2. A cooling assembly 3 is sleeved on the surface of the main shaft 2. The cooling assembly 3 includes a cooling cylinder 301. On both sides of the cooling cylinder 301, there are heat dissipation boxes 302. The inner cavity of the cooling cylinder 301 is filled with a coolant 303. At the top and bottom of both sides of the cooling cylinder 301, there are respectively communicated with an upper circulation pipe 304 and a lower circulation pipe 305. The other ends of the upper circulation pipe 304 and the lower circulation pipe 305 both penetrate through the heat dissipation box 302 and are communicated with a U-shaped pipe 306. The surface of the upper circulation pipe 304 is communicated with a circulation pump 307; inside the heat dissipation box 302, there is a heat dissipation assembly 4. The heat dissipation assembly 4 includes a motor 401. The output shaft of the motor 401 penetrates through the heat dissipation box 302 and is fixedly connected with a driving gear 402. At the top and bottom of the opposite sides of the inner cavities of the two heat dissipation boxes 302, there are respectively movably connected with transmission rods 403 through bearings. On the surface of the transmission rods 403, there are driven gears 404 and fan blades 405. The driving gear 402 meshes with the driven gear 404. By providing the gantry machining center main body 1, the workpiece can be machined by the main shaft 2. Through the provision of the cooling assembly 3, when the main shaft 2 is machining, the coolant 303 in the cooling cylinder 301 can be used for cooling. And the provisions of the upper circulation pipe 304, the lower circulation pipe 305, the U-shaped pipe 306 and the circulation pump 307 can circulate the coolant 303 for cooling the main shaft 2, improving the cooling effect. Through the provisions of the motor 401, the driving gear 402, the transmission rods 403 and the driven gears 404, the fan blades 405 can be driven to rotate, and the circulating coolant 303 in the U-shaped pipe 306 can be dissipated of heat, avoiding the influence on the cooling effect of the main shaft 2 due to the rise in the temperature of the coolant 303.

[0030] Embodiment Two:

[0031] Please refer to Figures 1-4, A spindle cooling structure for a gantry machining center, including the gantry machining center main body 1. Fixed rods 5 are fixedly connected to both sides of the spindle 2. Stirring rods 6 are fixedly connected to the top and bottom of the fixed rods 5, which can stir the coolant 303 in the cooling cylinder 301, increase the heat exchange area of the coolant 303, and thus achieve the cooling of the spindle 2. Connecting blocks 7 are fixedly connected to the top and bottom of both sides of the cooling cylinder 301, and the other ends of the connecting blocks 7 are fixedly connected to the heat dissipation boxes 302, which can facilitate the fixation of the two heat dissipation boxes 302. Heat dissipation openings are provided on both sides of the inner cavity of the two heat dissipation boxes 302, and dust-proof nets 8 are arranged in the inner cavities of the heat dissipation openings, which can facilitate the air circulation in the heat dissipation boxes 302 and improve the heat dissipation effect on the coolant 303 in the U-shaped tube 306. Sealing bearings 9 are embedded in the top and bottom of the inner cavity of the cooling cylinder 301, and the spindle 2 is in close fit with the sealing bearings 9. Processing openings 10 are provided on the surface of the gantry machining center main body 1, which can facilitate the machining of workpieces. Support legs 11 are fixedly connected to both sides of the bottom of the gantry machining center main body 1, and supports are fixedly connected to the bottoms of the support legs 11, which can support the gantry machining center.

[0032] The principle of this embodiment is as follows:

[0033] During use, the workpiece is placed in the gantry machining center main body 1 through the processing opening 10, and the workpiece can be machined by using the spindle 2. When the spindle 2 is machining, the coolant 303 in the cooling cylinder 301 will cool the spindle 2. At the same time, the circulating pump 307 is started, and the coolant 303 in the cooling cylinder 301 can be pumped into the U-shaped tube 306 by using the lower circulation pipe 305 and circulated into the cooling cylinder 301 through the upper circulation pipe 304, which can circulate the coolant 303 that cools the spindle 2 and improve the cooling effect.

[0034] At the same time, the motor 401 is started to drive the driving gear 402 to rotate, the driving gear 402 drives the two driven gears 404 to rotate, and the driven gears 404 can drive the transmission rod 403 and the fan blade 405 to rotate, which can dissipate the heat of the coolant 303 circulating in the U-shaped tube 306 and prevent the cooling effect on the spindle 2 from being affected by the rise in the temperature of the coolant 303.

[0035] In summary: For the spindle cooling structure of a gantry machining center, by setting the gantry machining center main body 1, the workpiece can be machined using the spindle 2. Through the setting of the cooling component 3, when the spindle 2 is machining, the coolant 303 in the cooling cylinder 301 can be used for cooling. The settings of the upper circulation pipe 304, the lower circulation pipe 305, the U-shaped pipe 306 and the circulation pump 307 can circulate the coolant 303 for cooling the spindle 2, improving the cooling effect. Through the settings of the motor 401, the driving gear 402, the transmission rod 403 and the driven gear 404, the fan blade 405 can be driven to rotate, and the coolant 303 circulating in the U-shaped pipe 306 can be cooled, avoiding the influence of the rising temperature of the coolant 303 on the cooling effect of the spindle 2.

[0036] The standard parts used in this application document can all be purchased from the market, and can also be customized according to the description of the specification and the drawings. The specific connection methods of each part all adopt conventional means such as bolts, rivets, welding, etc. that are mature in the prior art. The machines, parts and equipment all adopt conventional models in the prior art. The control method is automatically controlled by a controller. The control circuit of the controller can be realized by simple programming by those skilled in the art, which belongs to the common knowledge in this field. And this application document is mainly used to protect mechanical devices, so the control method and circuit connection will not be explained in detail in this application document.

[0037] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A spindle cooling structure for a gantry machining center, comprising a gantry machining center main body (1), characterized in that: The inner cavity of the gantry machining center main body (1) is provided with a main shaft (2), and a cooling assembly (3) is sleeved on the surface of the main shaft (2). The cooling assembly (3) includes a cooling cylinder (301). Radiating boxes (302) are arranged on both sides of the cooling cylinder (301). The inner cavity of the cooling cylinder (301) is filled with a coolant (303). The top and bottom of both sides of the cooling cylinder (301) are respectively communicated with an upper circulation pipe (304) and a lower circulation pipe (305). The other ends of the upper circulation pipe (304) and the lower circulation pipe (305) both penetrate through the radiating box (302) and are communicated with a U-shaped pipe (306). A circulation pump (307) is communicated with the surface of the upper circulation pipe (304). A heat dissipation assembly (4) is arranged in the inner cavity of the radiating box (302). The heat dissipation assembly (4) includes a motor (401). The output shaft of the motor (401) penetrates through the radiating box (302) and is fixedly connected with a driving gear (402). The top and bottom of the opposite sides of the inner cavity of the two radiating boxes (302) are both movably connected with a transmission rod (403) through bearings. A driven gear (404) and a fan blade (405) are arranged on the surface of the transmission rod (403). The driving gear (402) is meshed with the driven gear (404).

2. The spindle cooling structure of a gantry machining center according to claim 1, wherein: Fixing rods (5) are fixedly connected to both sides of the main shaft (2). Stirring rods (6) are fixedly connected to the top and bottom of the fixing rods (5).

3. The spindle cooling structure of a gantry machining center according to claim 1, characterized in that: Connecting blocks (7) are fixedly connected to the top and bottom of both sides of the cooling cylinder (301). The other ends of the connecting blocks (7) are fixedly connected with the radiating box (302).

4. A main shaft cooling structure of a gantry machining center according to claim 1, characterized in that: Heat dissipation openings are formed on both sides of the inner cavity of the two radiating boxes (302), and a dust-proof net (8) is arranged in the inner cavity of the heat dissipation openings.

5. The spindle cooling structure of a gantry machining center according to claim 1, characterized in that: Sealed bearings (9) are embedded in the top and bottom of the inner cavity of the cooling cylinder (301), and the main shaft (2) is in close fit with the sealed bearings (9).

6. The spindle cooling structure of a gantry machining center according to claim 1, characterized in that: A processing opening (10) is formed on the surface of the gantry machining center main body (1).

7. The main shaft cooling structure of a gantry machining center according to claim 1, characterized in that: Support legs (11) are fixedly connected to both sides of the bottom of the gantry machining center main body (1), and a support is fixedly connected to the bottom of the support legs (11).

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