Numerical control machine tool

Abstract

The utility model provides a numerical control machine tool and belongs to the field of machine tools. The problem that a numerical control machine tool depends on manually holding an air gun to clean cuttings is solved. The numerical control machine tool comprises a control system and a machine tool body with a movable guide rail, a spindle chuck is installed on the machine tool body, an annular cleaning device is arranged on the movable guide rail and comprises an inner ring, an outer ring and a fixed ring, an annular groove is formed in the outer portion of the inner ring, the annular groove and the outer ring are matched to form a closed air cavity, and a plurality of air outlet holes are evenly formed in the bottom of the annular groove. The outer ring is provided with a pneumatic connector, the inner ring and the outer ring are movably connected through a thrust bearing frame and a bearing roller pin, an outer tooth part is arranged outside the inner ring, gears are arranged on the two sides of the outer ring, the driving gears are driven by a driving motor integrated in the outer ring, and the cleaning device is controlled by a control system. And the inner ring is controlled by the driving motor to rotate and is combined with air blowing of the air cavity, so that automatic cleaning of cuttings is realized. The automatic cleaning device has the advantage of automatic cleaning.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the field of machine tool relates to a machine tool, especially in a numerical control machine tool. BACKGROUND

[0002] As the core equipment of modern precision machining, the numerical control machine tool will produce a large amount of chips in the machining process such as metal cutting, carving and drilling. If the chips are not removed in time, the chips may accumulate on the workpiece surface or tool path, which may cause secondary friction between the tool and the workpiece, resulting in machining precision deviation and insufficient surface finish.

[0003] At present, the common chip cleaning relies on manual use of air gun or brush to remove the chips, which is low in efficiency and has safety hazards, and is difficult to meet the needs of automatic continuous machining. During the loading and unloading process, the operator is easy to be injured by the chips, which has safety hazards. SUMMARY

[0004] The utility model aims at the above problems existing in the prior art, and provides a numerical control machine tool capable of automatically cleaning the chips on the workpiece to solve the above problems.

[0005] The utility model discloses a numerical control machine tool, including control system and the bed body with mobile guide rail, the bed body is installed with main shaft chuck, its characterized in that: the mobile guide rail is installed with movable annular cleaning device, is arranged on the main shaft chuck for the workpiece chip radial blow cleaning;

[0006] The cleaning device comprises a movable inner ring, an outer ring matched with the inner ring and a fixed ring fixed to the outer ring.

[0007] The inner ring is provided with a ring groove outside, and the ring groove and the outer ring are adapted to form a closed air cavity.

[0008] The outer ring is provided with a pneumatic connector for connecting an external air source and communicating with the air cavity.

[0009] The inner ring and the outer ring are movably connected through a thrust bearing frame and a bearing roller pin, so that the inner ring can rotate relative to the outer ring.

[0010] The inner ring is provided with an outer tooth portion outside, and the outer ring is provided with a driving gear meshing with the outer tooth portion on both sides.

[0011] The cleaning device is controlled by the control system, can be moved to the position of the main shaft chuck, and the inner ring is rotated by the driving motor, and the chips are automatically cleaned by the air cavity blowing.

[0012] In the numerical control machine, the inner diameter of the inner ring and the fixed ring is larger than the outer diameter of the spindle chuck, so that the spindle chuck can be completely inserted into the inside of the cleaning device, and omnidirectional radial blowing cleaning is realized.

[0013] In the numerical control machine, the cooperation structure of the thrust bearing and the needle bearing ensures that the outer ring is fixed when the inner ring rotates, so that the blowing direction stably covers the chip area.

[0014] In the numerical control machine, the number of the fixed rings is two, which are respectively located on both sides of the outer ring, and are arranged in an L-shaped structure, and are fixed with the outer ring through a plurality of fastening bolts, for protecting the internal structure and preventing the chips from entering.

[0015] In the numerical control machine, the lower end of the fixed ring is provided with a sliding seat which can drive the fixed ring to move.

[0016] Compared with the prior art, the numerical control machine combines the rotation of the annular cleaning device with the pneumatic blowing, so that the chips can be removed without manual intervention, the machining efficiency is improved, the high-efficiency automatic cleaning is realized, the control system is used to drive the cleaning device to move along the guide rail, the spindle chuck is accurately sleeved, and the cleaning range covers the workpiece machining area, the cooperation design of the thrust bearing and the needle bearing can ensure that the outer ring is stable when the inner ring rotates, the airflow direction is prevented from deviating, the detachable structure of the inner ring and the outer ring is convenient for maintenance, the gas cavity and the air outlet hole are designed to optimize the airflow distribution, and the cleaning effect is improved. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 is a schematic diagram of the three-dimensional structure of the numerical control machine.

[0018] Figure 2 is a schematic diagram of the three-dimensional structure of the numerical control machine.

[0019] Figure 3 is a schematic diagram of the three-dimensional structure of the numerical control machine.

[0020] In the figure, 1 is a bed body, 2 is a spindle chuck, 3 is a cleaning device, 4 is an inner ring, 5 is an outer ring, 6 is a fixed ring, 7 is a ring groove, 8 is a gas cavity, 9 is an air outlet hole, 10 is a pneumatic joint, 11 is an outer tooth part, 12 is a driving gear, 13 is a driving motor, 14 is a sliding seat, 15 is a thrust bearing frame, and 16 is a bearing needle. DETAILED DESCRIPTION

[0021] The following is a specific embodiment of the utility model and is combined with the drawings to further describe the technical scheme of the utility model, but the utility model is not limited to these embodiments.

[0022] As Figure 1 , Figure 2 ,Figure 3 The numerical control machine tool shown comprises a control system and a bed body 1 with a moving guide rail, a main shaft chuck 2 is installed on the bed body 1, and a movable annular cleaning device 3 is installed on the moving guide rail, which is used for radial blowing cleaning of workpiece chips on the main shaft chuck 2. The cleaning device 3 comprises a movable inner ring 4, an outer ring 5 matched with the inner ring 4, and a fixed ring 6 fixed to the outer ring 5. The outer part of the inner ring 4 is provided with an annular groove 7, the annular groove 7 and the outer ring 5 are matched to form a sealed air cavity 8, a plurality of air outlet holes 9 are uniformly arranged at the bottom of the annular groove 7, the outer ring 5 is provided with a pneumatic connector 10 for connecting an external air source and communicating with the air cavity 8, the inner ring 4 and the outer ring 5 are movably connected through a thrust bearing frame 15 and a bearing roller pin 16, so that the inner ring 4 can rotate relative to the outer ring 5, the outer part of the inner ring 4 is provided with an outer tooth part 11, both sides of the outer ring 5 are provided with driving gears 12 engaged with the outer tooth part 11, the driving gears 12 are driven by a driving motor 13 integrated in the inner part of the outer ring 5 to drive the inner ring 4 to rotate, and the cleaning device 3 is controlled by the control system to move to a position sleeved into the main shaft chuck 2 along the moving guide rail, and the inner ring 4 is controlled to rotate through the driving motor 13 to realize automatic chip cleaning by blowing air in the air cavity 8.

[0023] Through the rotation of the annular cleaning device 3 combined with pneumatic blowing, the chips can be removed without manual intervention, the machining efficiency is improved, the automatic cleaning is realized, the control system is used to drive the cleaning device 3 to move along the guide rail, the main shaft chuck 2 is accurately sleeved, and it is ensured that the cleaning range covers the workpiece machining area. The cooperation design of the thrust bearing and the roller pin bearing can ensure that the outer ring 5 is stable when the inner ring 4 rotates, and the airflow direction is avoided to deviate. The detachable structure of the inner ring 4 and the outer ring 5 is convenient for maintenance. The air cavity 8 and the air outlet hole 9 are designed to optimize the airflow distribution, and the cleaning effect is improved.

[0024] The inner diameters of the inner ring 4 and the fixed ring 6 are greater than the outer diameter of the main shaft chuck 2, so that the main shaft chuck 2 can be completely inserted into the inner part of the cleaning device 3 to realize omnidirectional radial blowing cleaning. The cooperation structure of the thrust bearing and the roller pin bearing makes the outer ring 5 remain fixed when the inner ring 4 rotates, so as to ensure that the blowing direction stably covers the chip area. The fixed ring 6 is 2 in number and is arranged on both sides of the outer ring 5 in an L-shaped structure, and is fixed to the outer ring 5 through a plurality of fastening bolts, which is used for protecting the internal structure and preventing the chips from entering. The lower end of the fixed ring 6 is provided with a sliding seat 14 which can drive the fixed ring 6 to move.

[0025] Positioning and starting: the control system moves the cleaning device 3 along the moving guide rail to the position of the main shaft chuck 2, and completely sleeves into the workpiece.

[0026] Pneumatic blowing: the external air source inputs the air cavity 8 through the pneumatic connector 10, and the high-pressure airflow is radially sprayed from the air outlet holes 9 at the bottom of the annular groove 7 to impact the chip on the surface of the workpiece.

[0027] Rotary cleaning: the driving motor 13 drives the driving gear 12 to rotate, and drives the inner ring 4 to rotate relative to the outer ring 5, so that the airflow rotates with the inner ring 4 to form a dynamic cleaning area, thereby enhancing the chip peeling effect.

[0028] Cooperative control: after cleaning, the cleaning device 3 is automatically reset, and is ready for the next machining cycle.

[0029] The specific embodiments described herein are merely illustrative of the spirit of the present application. Those skilled in the art of the present application can make various modifications or supplements to the described specific embodiments or use similar ways to replace them, without deviating from the spirit of the present application or exceeding the scope defined by the appended claims.

[0030] Although the terms are used more frequently herein, the possibility of using other terms is not excluded. The use of these terms is only for the convenience of describing and explaining the essence of the present application; any interpretation of them as any kind of additional limitation is contrary to the spirit of the present application.

Claims

1. A numerically controlled machine tool comprising a control system and a bed (1) with a mobile guide, on which a main spindle chuck (2) is mounted, characterised in that: The movable annular cleaning device (3) is installed on the moving guide rail, and is used for radially blowing and cleaning the workpiece chips on the spindle chuck (2); The cleaning device (3) comprises a movable inner ring (4), an outer ring (5) matched with the inner ring (4), and a fixed ring (6) fixed on the outer ring (5); The outer part of the inner ring (4) is provided with a ring groove (7), and the ring groove (7) and the outer ring (5) are matched to form a closed air cavity (8), and a plurality of air outlet holes (9) are uniformly arranged at the bottom of the ring groove (7); The outer ring (5) is provided with a pneumatic connector (10) for connecting an external air source and communicating with the air cavity (8); The inner ring (4) and the outer ring (5) are movably connected through a thrust bearing frame (15) and a bearing roller pin (16), so that the inner ring (4) can rotate relative to the outer ring (5); The outer part of the inner ring (4) is provided with an outer tooth part (11), and the two sides of the outer ring (5) are provided with driving gears (12) engaged with the outer tooth part (11), the driving gears (12) are driven by a driving motor (13) integrated in the outer ring (5), and the inner ring (4) is driven to rotate; The cleaning device (3) is controlled by a control system, can be moved to the position of sleeving the spindle chuck (2) along the moving guide rail, and the rotation of the inner ring (4) is controlled through the driving motor (13), and the automatic cleaning of the chips is realized by blowing through the air cavity (8).

2. A numerically controlled machine tool according to claim 1, characterized in that: The inner diameters of the inner ring (4) and the fixed ring (6) are greater than the outer diameter of the spindle chuck (2), so that the spindle chuck (2) can completely penetrate into the inner part of the cleaning device (3), and the full-range radial blowing cleaning is realized.

3. A numerically controlled machine tool according to claim 1, wherein The cooperation structure of the thrust bearing and the roller pin bearing ensures that the outer ring (5) remains fixed when the inner ring (4) rotates, and ensures that the blowing direction is stable and covers the chip area.

4. A numerically controlled machine tool according to claim 1, wherein The number of the fixed ring (6) is two, which are respectively located on the two sides of the outer ring (5), and the cross section is in L-shaped structure, and is fixed with the outer ring (5) through a plurality of fastening bolts, which is used for protecting the internal structure and preventing the chips from entering.

5. A numerically controlled machine tool according to claim 4, wherein The lower end of the fixed ring (6) is provided with a sliding seat (14) which can drive the fixed ring (6) to move.

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