Heat dissipation structure of gantry ram

Abstract

The utility model relates to the technical field of machine tool machining, in particular to a heat dissipation structure of a gantry ram, which comprises a ram, and a spindle motor, a spindle motor mounting plate and a spindle which are sequentially arranged in the ram, an overhead heat dissipation device is arranged on the top of the ram, a motor cooling pipe opening is formed in the spindle motor, and a mounting plate cooling pipe opening is formed in the spindle motor mounting plate. The cooling device is sequentially communicated with the motor cooling pipe orifice and the mounting plate cooling pipe orifice to realize internal heat dissipation of the ram; the oil cooling device is combined with the overhead heat dissipation device, so that the internal heating phenomenon of the main shaft is effectively inhibited, the main shaft is prevented from being heated to extend due to overheating, the machining precision of the main shaft is ensured, and the machining efficiency of a machine tool is improved; specifically, oil cooling heat dissipation devices are independently arranged on the main shaft motor, the main shaft motor mounting plate and the main shaft, so that efficient heat dissipation is achieved; meanwhile, a protective net is arranged at the top of the overhead heat dissipation device, and foreign matters such as external oil stains and dust entering the spindle head are reduced through a top sealing form.

Description

Technical Field

[0001] The utility model relates to the technical field of machine tool processing, in particular to a heat dissipation structure of a gantry ram. Background Art

[0002] In the process of gantry five-axis machine tool processing, the thermal elongation of the spindle is an important factor affecting the processing of the machine tool, which has always been a difficult problem that manufacturers need to overcome. Figure 4 As shown, the existing machine tool's ram heat dissipation method generally relies on the spindle motor fan 7 to force the heat to be discharged for cooling, and the top of the ram is made into an open type. However, this heat dissipation method only relies on the spindle motor's own fan for heat dissipation, and the heat dissipation effect is limited. During gantry five-axis processing, the motor heat dissipation is poor and the heat is transferred to the ram body, causing the spindle to elongate due to heat, so that the spindle position needs to be adjusted, affecting the processing accuracy and processing efficiency. In addition, the open top made for the internal heat dissipation of the ram will also cause foreign matter such as oil, dust, etc. to enter the spindle head. In order to overcome the above-mentioned defects in the above-mentioned prior art, a new type of heat dissipation structure of the gantry ram is provided by changing the spindle motor heat dissipation method. Utility Model Content

[0003] 1. Technical issues to be solved

[0004] The utility model aims at the above defects existing in the prior art and specially proposes a heat dissipation structure of a gantry slide, which solves the problem that the heat dissipation effect of the gantry slide of the existing machine tool affects the processing accuracy and processing efficiency.

[0005] 2. Technical Solution

[0006] In order to solve the above technical problems, the utility model provides a heat dissipation structure of a gantry ram, comprising a ram, and a spindle motor, a spindle motor mounting plate and a spindle sequentially arranged in the ram;

[0007] A top heat sink is provided on the top of the ram, a motor cooling nozzle is provided on the spindle motor, and a mounting plate cooling nozzle is provided on the spindle motor mounting plate;

[0008] The cooling device sequentially connects the cooling pipe opening of the motor and the cooling pipe opening of the mounting plate to realize the internal heat dissipation of the slide.

[0009] Among them, a spindle cooling pipe opening is arranged on the spindle, and the cooling device is also used for heat dissipation of the spindle. The heat dissipation pipeline connected with the spindle motor and the spindle motor mounting plate is connected in parallel with the heat dissipation pipeline connected with the spindle.

[0010] Among them, the top-mounted heat dissipation device also includes a fan base, and the fan base and the open side wall of the top of the slide are a detachable clip structure, and the clip structure includes a clip block arranged on one side wall of the fan base and a clip plate corresponding to the open side wall of the top of the slide.

[0011] Wherein, a plurality of heat dissipation openings are arranged on the side wall of the ram.

[0012] Wherein, the side wall of the slide block is provided with pipe openings corresponding to the motor cooling pipe opening, the mounting plate cooling pipe opening and the spindle cooling pipe opening.

[0013] The spindle motor mounting plate is fixed in the ram by screws, the spindle motor is fixedly installed by the spindle motor mounting plate, and a coupling is also arranged between the spindle and the spindle motor.

[0014] Among them, the cooling device adopts oil cooling.

[0015] Among them, a spindle cooling pipe opening is arranged on the spindle, and the cooling device is also used for heat dissipation of the spindle, and the heat dissipation pipelines connecting the spindle motor, the spindle motor mounting plate and the spindle are connected in series.

[0016] Among them, the top-mounted heat dissipation device also includes a fan base, and the fan base and the open side walls of the top of the slide are a detachable slide rail structure, and the slide rail structure includes slide rails arranged on the opposite side walls of the fan base and slide grooves correspondingly arranged on the opposite side walls of the top of the slide.

[0017] Among them, a protective net is provided on the top of the roof heat dissipation device.

[0018] 3. Beneficial Effects

[0019] Compared with the prior art, the utility model discloses a heat dissipation structure of a gantry slide, which effectively suppresses the internal heating of the spindle through the arrangement of an oil cooling device in combination with a top heat dissipation device, thereby ensuring that the spindle will not overheat and produce heat elongation, thereby ensuring the processing accuracy of the spindle and improving the processing efficiency of the machine tool; specifically, by separately arranging oil cooling heat dissipation devices on the spindle motor, the spindle motor mounting plate and the spindle, efficient heat dissipation is achieved; at the same time, a protective net is provided on the top of the top heat dissipation device, and the top closure form is used to reduce the entry of external foreign matter such as oil stains and dust into the interior of the spindle head. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the parallel connection of the cooling oil circuits of the utility model.

[0021] Figure 2 It is a schematic diagram of the overall structure of the utility model.

[0022] Figure 3 It is a schematic diagram of the internal structure of the utility model.

[0023] Figure 4 It is a schematic diagram of an existing design in the background technology of the present utility model.

[0024] In the figure:

[0025] 1 is the ram; 2 is the spindle motor; 3 is the spindle motor mounting plate; 4 is the spindle; 5 is the top heat sink; 6 is the oil cooling device;

[0026] 11 is the motor cooling nozzle; 12 is the mounting plate cooling nozzle; 13 is the spindle cooling nozzle; 14 is the fan base; 15 is the protective net. DETAILED DESCRIPTION

[0027] The following is a further detailed description of the specific implementation of the present utility model in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present utility model, but cannot be used to limit the scope of the present utility model.

[0028] Embodiment 1:

[0029] Combination Figure 1 , Figure 2 and Figure 3 As shown, the heat dissipation structure of the gantry slide of the present embodiment includes a slide 1, and a spindle motor 2, a spindle motor mounting plate 3 and a spindle 4 which are sequentially arranged in the slide 1; the spindle motor mounting plate 3 is fixed in the slide 1 by screws, the spindle motor 2 is fixedly installed by the spindle motor mounting plate 3, a coupling is also provided between the spindle 4 and the spindle motor 2, power is transmitted to the spindle 4 through the spindle motor 2 and the coupling, and the spindle motor mounting plate 3 plays a role of installation and fixing.

[0030] like Figure 1 As shown, a top heat dissipation device 5 is provided on the top of the ram 1, a motor cooling nozzle 11 is provided on the spindle motor 2, and a mounting plate cooling nozzle 12 is provided on the spindle motor mounting plate 3. The motor cooling nozzle 11 and the mounting plate cooling nozzle 12 are connected in sequence through the cooling device 6 to realize the internal heat dissipation of the ram 1. The cooling device 6 adopts oil cooling, and a spindle cooling nozzle 13 is provided on the spindle 4. The cooling device 6 is also used for the heat dissipation of the spindle 4. The heat dissipation pipeline connected to the spindle motor 2 and the spindle motor mounting plate 3 is connected in parallel with the heat dissipation pipeline connected to the spindle 4. Through this connection method, the overall heat dissipation inside the ram 1 is realized. The multi-point heat dissipation cooling method separates the heat generated during the rotation of the spindle motor 2 from the spindle 4, and suppresses the thermal elongation of the spindle 4 caused by the heat conduction to the ram 1. A cooling groove is added in the spindle motor mounting plate 3 between the spindle and the spindle motor to effectively separate the heat of the spindle motor 2 from the ram 1.

[0031] Furthermore, the top-mounted heat dissipation device 5 also includes a fan base 14. The fan base 14 and the open side wall at the top of the slide 1 are a detachable clip-on structure. The clip-on structure includes a clip block arranged on one side wall of the fan base 14 and a clip plate corresponding to the open side wall at the top of the slide 1. A protective net is provided on the top of the top-mounted heat dissipation device 5. The top closure can reduce the entry of external oil, dust and other foreign matter into the spindle head.

[0032] At the same time, pipe openings corresponding to the motor cooling pipe opening 11, the mounting plate cooling pipe opening 12 and the spindle cooling pipe opening 13 are provided on the side wall of the slide 1 to facilitate the setting of the heat dissipation pipeline. At the same time, a plurality of heat dissipation openings are provided on the side wall of the slide 1. The use of a fan and an oil cooling device can effectively suppress the internal heating of the spindle, thereby ensuring that the spindle will not overheat and produce heat elongation, ensuring the processing accuracy of the spindle 4, and improving the processing efficiency of the machine tool.

[0033] Embodiment 2:

[0034] Compared with Example 1, in the embodiment, a spindle cooling nozzle 13 is provided on the spindle 4, and the cooling device 6 is also used for heat dissipation of the spindle 4. The heat dissipation pipelines connecting the spindle motor 2, the spindle motor mounting plate 3, and the spindle 4 are connected in series (not shown in the figure), which can also achieve efficient heat dissipation.

[0035] Embodiment 3:

[0036] Compared with Example 1, in this embodiment, the fan base 14 and the side walls of the top opening of the slide 1 are a detachable slide rail structure, and the slide rail structure includes slide rails arranged on the opposite side walls of the fan base 14 and slide grooves correspondingly arranged on the opposite side walls of the top opening of the slide 1, which can be easily disassembled and assembled, thereby facilitating the disassembly and assembly of the spindle motor 2, the spindle motor mounting plate 3 and the spindle 4 inside the slide and the maintenance of the heat dissipation pipeline.

[0037] The above are only preferred implementations of the present invention. It should be pointed out that ordinary technicians in this technical field can make several improvements and modifications without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A heat dissipation structure of a gantry ram, characterized in that: The heat dissipation structure of the gantry ram comprises a ram (1), and a spindle motor (2), a spindle motor mounting plate (3) and a spindle (4) which are sequentially arranged in the ram (1); The top of the ram (1) is provided with a top heat sink (5), the spindle motor (2) is provided with a motor cooling nozzle (11), and the spindle motor mounting plate (3) is provided with a mounting plate cooling nozzle (12); The cooling device (6) sequentially connects the motor cooling pipe opening (11) and the mounting plate cooling pipe opening (12) to achieve internal heat dissipation of the ram (1).

2. The heat dissipation structure of a gantry ram according to claim 1, characterized in that: The spindle (4) is provided with a spindle cooling pipe opening (13), the cooling device (6) is also used for heat dissipation of the spindle (4), and the heat dissipation pipeline connected to the spindle motor (2) and the spindle motor mounting plate (3) is connected in parallel with the heat dissipation pipeline connected to the spindle (4).

3. The heat dissipation structure of a gantry ram according to claim 1, characterized in that: The top-mounted heat dissipation device (5) further comprises a fan and a fan base (14); the fan base (14) and the open side wall of the top of the ram (1) are a detachable snap-fit ​​structure; the snap-fit ​​structure comprises a snap-fit ​​block arranged on one side wall of the fan base (14) and a snap-fit ​​plate corresponding to the open side wall of the top of the ram (1).

4. The heat dissipation structure of a gantry ram according to claim 1, characterized in that: The side wall of the ram (1) is provided with a plurality of heat dissipation openings.

5. The heat dissipation structure of a gantry ram according to claim 2, characterized in that: The side wall of the ram (1) is provided with pipe openings corresponding to the motor cooling pipe opening (11), the mounting plate cooling pipe opening (12) and the spindle cooling pipe opening (13).

6. The heat dissipation structure of a gantry ram according to claim 1, characterized in that: The spindle motor mounting plate (3) is fixed in the ram (1) by means of screws, the spindle motor (2) is fixedly mounted by means of the spindle motor mounting plate (3), and a coupling is also provided between the spindle (4) and the spindle motor (2).

7. The heat dissipation structure of a gantry ram according to claim 1, characterized in that: The cooling device (6) adopts oil cooling.

8. The heat dissipation structure of a gantry ram according to claim 1, characterized in that: The spindle (4) is provided with a spindle cooling pipe opening (13), the cooling device (6) is also used for heat dissipation of the spindle (4), and the heat dissipation pipelines connecting the spindle motor (2), the spindle motor mounting plate (3) and the spindle (4) are connected in series.

9. The heat dissipation structure of a gantry ram according to claim 1, characterized in that: The top-mounted heat dissipation device (5) further comprises a fan base (14), wherein the fan base (14) and the side wall of the top opening of the slide (1) are a detachable slide rail structure, wherein the slide rail structure comprises slide rails arranged on opposite side walls of the fan base (14) and slide grooves correspondingly arranged on opposite side walls of the top opening of the slide (1).

10. The heat dissipation structure of a gantry ram according to claim 1, characterized in that: A protective net (15) is provided on the top of the top-mounted heat dissipation device (5).

Images