Numerically-controlled machine tool spindle

Abstract

The utility model relates to the technical field of numerical control machine tools, in particular to a numerical control machine tool spindle which comprises a shell and a filter screen, a first bearing is installed at the top of the shell in an embedded mode, a first fixing rod is fixedly installed on an inner ring of the first bearing, and a connecting rod is welded to the bottom of the first fixing rod. The fan blades are installed on the outer side of the connecting rod in an annular array mode, the second bearings are installed on the upper side and the lower side of the portion, on one side of the first bearing, of the shell in an embedded mode, the shaft body is fixedly installed on inner rings of the two second bearings, the air inlet pipe is installed on the side face of the shell in an embedded mode, an inserting hole is formed in the top of the air inlet pipe, and the filter screen is inserted into the air inlet pipe through the inserting hole. The shaft body has the advantages of accelerating air circulation near the shaft body and preventing the temperature of the shaft body from being too high.

Description

TECHNICAL FIELD

[0001] The utility model relates to numerical control machine tool technical field, concretely is a kind of numerical control machine tool main shaft. BACKGROUND

[0002] Numerical control machine tool is a kind of machine tool that can control tool path and movement through computer program in machining process, it can automatically realize the production of machining product, improve production efficiency and precision, numerical control machine tool can be machined according to pre-input instruction, reduce the error of human operation, and can be used for machining complex shape parts, the main shaft of numerical control machine tool is used to install and drive cutter to carry out machining operation, it is usually driven by motor, can rotate and provide required rotating speed and torque, so that cutting, drilling or milling etc. Operation is carried out to workpiece in machining process, main shaft plays a key role in numerical control machine tool, directly influences machining quality and efficiency.

[0003] Numerical control machine tool main shaft generates heat in running process, therefore temperature can be elevated, the temperature rise of main shaft can cause thermal expansion and cold shrink of main shaft and its accessory parts, thereby causing dimensional change and geometric accuracy to drop, main shaft high temperature can be conducted to motor part, influence the service life of motor. SUMMARY

[0004] The utility model discloses a kind of numerical control machine tool main shaft, with the advantage that air flow is accelerated around shaft body, avoid the temperature of shaft body too high, solve the problem of numerical control machine tool main shaft temperature too high.

[0005] To achieve the above object, the utility model provides the following technical scheme: a kind of numerical control machine tool main shaft, including shell and filter screen, the shell top is embedded and is installed with bearing one, the inner ring of bearing one is fixedly installed with fixed rod one, the fixed rod one bottom is welded with connecting rod, the connecting rod outside is installed with fan blade in ring array, the shell upper and lower sides of bearing one side are embedded and are installed with bearing two, the inner ring of two bearing two is fixedly installed with shaft body, the shell side is embedded and is installed with air inlet pipe, the air inlet pipe top is provided with insertion hole, the filter screen is inserted into air inlet pipe inside from insertion hole.

[0006] When using the numerical control machine tool main shaft in the technical solution, the fixed disc is fixedly connected with the numerical control machine tool driving mechanism by using bolts and other tools through the fixed hole of the fixed disc. The numerical control machine tool drives the fixed disc to rotate through the driving mechanism. The fixed disc drives the shaft body to rotate through the fixed rod two. The fixed rod two drives the fixed rod one to rotate through the belt when rotating. The fixed rod one drives the connecting rod to rotate. The connecting rod drives the fan blade to rotate. The fan blade accelerates the air near it when rotating. The external air enters the shell inside from the air inlet pipe under the influence of suction. The filter screen in the air inlet pipe inside adsorbs the dust in the air. The air in the shell inside is discharged from the air outlet pipe.

[0007] Preferably, the shaft body top is welded with a fixed rod two, the fixed rod two top is welded with a fixed disc, the fixed disc is arranged with a fixed hole in an annular array. Through the fixed hole of the fixed disc, the fixed disc is fixedly connected with the numerical control machine tool driving mechanism by using bolts and other tools.

[0008] Preferably, the fixed rod two is movably connected with the fixed rod one through a belt. When the fixed rod two rotates, the fixed rod one is driven to rotate through the belt.

[0009] Preferably, the fixed rod one top is provided with a baffle. The baffle prevents the belt from sliding off the fixed rod one top.

[0010] Preferably, the shell interior bottom end is provided with a bearing three, and the connecting rod bottom is fixedly connected with the bearing three inner ring. The bearing three fixes the connecting rod bottom, thereby maintaining the stability of the connecting rod.

[0011] Preferably, the air inlet pipe is communicated with the shell interior, the air inlet pipe interior bottom end is arranged with a fixed groove, the filter screen bottom is inserted into the fixed groove interior, and the filter screen top is provided with a pull plate. External air can enter the shell interior from the air inlet pipe, the fixed groove fixes the filter screen in the air inlet pipe interior, and the filter screen can be pulled out from the air inlet pipe interior by using the pull plate.

[0012] Preferably, the shell side away from the air inlet pipe is embeddedly provided with an air outlet pipe, the air outlet pipe is communicated with the shell interior, and the air outlet pipe interior is provided with a grid frame. Air in the shell interior can be discharged from the air outlet pipe, and the grid frame prevents relatively large foreign matters from entering the shell interior from the air outlet pipe.

[0013] Preferably, the fan blade and the shaft body in the shell interior are kept at a distance. When the fan blade rotates, interference with the shaft body is avoided.

[0014] Compared with the prior art, the fan blade, the filter screen and the shaft body are arranged.

[0015] When the fixed rod two drives the shaft body to rotate, the fixed rod one is driven to rotate through the belt, the connecting rod is driven to rotate by the fixed rod one, the fan blade is driven to rotate by the connecting rod, the fan blade accelerates the air near the fan blade when rotating, external air enters the shell interior from the air inlet pipe under the influence of suction, the filter screen in the air inlet pipe interior adsorbs dust in the air, and air in the shell interior is discharged from the air outlet pipe. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a first angle three-dimensional structure schematic view of the utility model.

[0017] Figure 2 It is a second angle three-dimensional structure schematic view of the utility model.

[0018] Figure 3 It is third angle solid structure schematic view of the utility model;

[0019] Figure 4 It is casing sectional structure schematic view of the utility model;

[0020] Figure 5 It is air intake pipe sectional structure schematic view of the utility model.

[0021] In the drawing: 1, casing;2, air intake pipe;3, bearing one;4, fixed rod one;5, baffle;6, belt;7, fixed disc;8, fixed hole;9, shaft;10, bearing two;11, air outlet pipe;12, grid frame;13, fixed rod two;14, filter screen;15, bearing three;16, fan blade;17, connecting rod;18, jack;19, pull plate;20, fixed groove. DETAILED DESCRIPTION

[0022] In order to make the above-mentioned purpose, features and advantages of the utility model more obvious and easy to understand, the specific embodiment of the utility model is described in detail below with the drawings.

[0023] In the following description, many specific details are set forth in order to provide a thorough understanding of the utility model, but the utility model can also be implemented in other ways different from the description herein, and those skilled in the art can make similar generalization without departing from the connotation of the utility model, therefore the utility model is not limited by the specific embodiments disclosed below.

[0024] Secondly, the utility model is described in detail in combination with the schematic view, when detailing the utility model embodiment, for the convenience of explanation, the sectional view of device structure will be partially enlarged without general proportion, and the schematic view is only an example, which should not limit the scope of protection of the utility model herein. In addition, three-dimensional spatial dimensions of length, width and depth should be contained in actual manufacture.

[0025] In order to make the purpose, technical scheme and advantages of the utility model more clear, the embodiment of the utility model will be described in further detail below in combination with the drawings.

[0026] Example one

[0027] As Figures 1-5As shown in the utility model discloses a numerical control machine tool spindle, including casing 1 and filter screen 14, casing 1 top embedded installation has bearing one 3, bearing one 3 inner ring fixedly installed have fixed link one 4, fixed link one 4 bottom welding has connecting rod 17, connecting rod 17 outside annular array installation has fan blade 16, casing 1 inside bottom end installation has bearing three 15, connecting rod 17 bottom and bearing three 15 inner ring fixed connection, casing 1 one side bearing two 10 are embedded and installed on both sides, two bearing two 10 inner ring fixedly installed have axle body 9, axle body 9 top welding has fixed link two 13, fixed link two 13 top welding has fixed disc 7, fixed disc 7 is annular array and is provided with fixed hole 8, fixed link two 13 is connected with fixed link one 4 through belt 6, fixed link one 4 top installation has baffle 5, casing 1 side embedded installation has air inlet pipe 2, air inlet pipe 2 top is provided with jack 18, filter screen 14 is inserted into air inlet pipe 2 inside from jack 18, air inlet pipe 2 and casing 1 inside communication, air inlet pipe 2 inside bottom end is provided with fixed groove 20, filter screen 14 bottom insertion fixed groove 20 inside, filter screen 14 top installation has pull plate 19, casing 1 is away from air inlet pipe 2 one side embedded installation has air outlet pipe 11, air outlet pipe 11 and casing 1 inside communication, air outlet pipe 11 inside installation has grid frame 12.

[0028] In the embodiment, the fixed hole 8 of the fixed disc 7 is fixedly connected with the numerical control machine tool driving mechanism by using a bolt or the like, the numerical control machine tool drives the fixed disc 7 to rotate through the driving mechanism, the fixed disc 7 drives the axle body 9 to rotate through the fixed link two 13, the fixed link one 4 is driven to rotate by the belt 6 when the fixed link two 13 rotates, the fixed link one 4 drives the connecting rod 17 to rotate, the connecting rod 17 drives the fan blade 16 to rotate, the fan blade 16 accelerates the air near the fan blade 16 when rotating, the external air enters the casing 1 inside from the air inlet pipe 2 under the influence of suction, the filter screen 14 in the air inlet pipe 2 absorbs the dust in the air, and the air in the casing 1 is discharged from the air outlet pipe 11.

[0029] Embodiment two

[0030] As Figures 1-5 shown, the utility model discloses a numerical control machine tool spindle, compared to embodiment one, this embodiment still includes: axle body 9 and fan blade 16, and the fan blade 16 and the distance between the axle body 9 inside casing 1.

[0031] In the embodiment, the fan blade 16 does not interfere with the axle body 9 when rotating through the distance between the fan blade 16 and the axle body 9 inside the casing 1.

[0032] Finally, it should be noted that: the above only for the preferred embodiments of the present application, and is not intended to limit the present application, although the foregoing embodiments of the present application have been described in detail, for the skilled in the art, it still can be modified, or for the equivalent replacement of part of the technical features of the technical solutions recorded in the foregoing embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application, shall be included within the scope of the present application.

Claims

1. A CNC machine tool spindle comprising a housing (1) and a filter screen (14), characterized in that: The shell (1) top embedded installation has bearing one (3), the inner ring of bearing one (3) fixedly installed fixed rod one (4), the bottom of fixed rod one (4) is welded with connecting rod (17), the outer side of connecting rod (17) is annular array installation with fan blade (16), the shell (1) on the one side of bearing two (10) embedded installation is installed in bearing two (10) both sides, the inner ring of two bearing two (10) fixedly installed shaft body (9), the shell (1) side embedded installation has air inlet pipe (2), the top of air inlet pipe (2) is provided with the insertion hole (18), the filter screen (14) is inserted into the inside of air inlet pipe (2) from insertion hole (18).

2. A CNC machine tool spindle according to claim 1, characterised in that: The top of the shaft body (9) is welded with the fixed rod two (13), and the fixed rod two (13) is welded with the fixed disc (7) at the top. The fixed disc (7) is annular array and is provided with the fixed hole (8).

3. A CNC machine tool spindle according to claim 2, characterised in that: The fixed rod two (13) is movably connected with the fixed rod one (4) through the belt (6).

4. A CNC machine tool spindle as claimed in claim 3, characterised in that: The top of the fixed rod one (4) is provided with the baffle (5).

5. A CNC machine tool spindle as claimed in claim 1, characterized in that: The inner bottom of the shell (1) is provided with the bearing three (15), and the bottom of the connecting rod (17) is fixedly connected with the inner ring of the bearing three (15).

6. A CNC machine tool spindle as claimed in claim 1, characterized in that: The air inlet pipe (2) is communicated with the inside of the shell (1), and the bottom of the air inlet pipe (2) is provided with the fixed groove (20). The bottom of the filter screen (14) is inserted into the inside of the fixed groove (20), and the top of the filter screen (14) is provided with the pull plate (19).

7. A CNC machine tool spindle as claimed in claim 1, characterized in that: The shell (1) is embedded and installed on the side away from the air inlet pipe (2) with the air outlet pipe (11), and the air outlet pipe (11) is communicated with the inside of the shell (1). The air outlet pipe (11) is provided with the grid frame (12) inside.

8. A CNC machine tool spindle as claimed in claim 1, characterized in that: The fan blade (16) and the shaft body (9) inside the shell (1) are kept a distance.

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