Precision CNC Machining Center and Method for Reducer Housing

Abstract

The present invention discloses a precision CNC machining center for a speed reducer housing, comprising: a table chip cleaning member disposed on the bed of the machining center, which includes a wall chip cleaning member and a chip discharging member. The wall chip cleaning member is on the wall of the bed and automatically scrapes the metal chips adhered to the wall downward to the chip discharging member, and the chip discharging member discharges the metal chips on the wall; a tool chip cleaning member disposed on the spindle component of the machining center, which includes a chip cleaning power member and a cooling chip cleaning member. The chip cleaning power member drives the cooling chip cleaning member on the Z-axis spindle of the spindle component to cool the machining area of the Z-axis spindle of the spindle component and the front of the machining trajectory and spray away the metal chips. The present invention has a high degree of automation and high efficiency in cleaning metal chips, and can significantly reduce the blockage of chip discharging pipelines, tool breakage and workpiece damage.

Description

Technical Field

[0001] The present invention relates to the technical field of numerical control machining, and more specifically, to a precision numerical control machining center and method for a reduction gearbox housing. Background Art

[0002] A machining center machine, i.e., a metal machining center machine tool, also called a CNC machine tool, is simply referred to as a machining center (the English name is Computerized Numerical Control Machine, abbreviated as CNC). A metal machining center machine tool is usually composed of a control system, a servo system, a detection system, a mechanical transmission system and other auxiliary systems, and is a high-efficiency automatic machine tool suitable for machining workpieces with complex shapes. The metal machining center machine tool is equipped with a tool magazine and has an automatic tool change function. It is a numerical control machine tool that performs multi-process machining on a workpiece after one-time clamping. A machining center machine is a highly integrated mechatronic machine tool. After the workpiece is clamped, the numerical control system can control the machine tool to automatically select tools, change tools, automatically align the tools, automatically change the spindle speed and feed rate, etc. according to different processes, and can continuously complete various processes such as drilling, boring, milling, reaming, tapping, etc. Therefore, it greatly reduces the workpiece clamping time, measurement and machine tool adjustment and other auxiliary process times, and has good economic benefits for machining parts with relatively complex shapes, high precision requirements and frequent variety changes.

[0003] Existing data machine tools cannot achieve intelligent cleaning and chip removal during the machining process, which is easy to cause blockage of the chip removal pipeline, tool breakage and workpiece damage. Moreover, when cleaning metal chips, they cannot be fully cleaned, and the cleaning effect is poor. At the same time, when the coolant cools the tool and the workpiece, it will splash onto the wall surface of the machining center machining chamber. Because the coolant has a certain adhesiveness, the metal chips will stick to the wall surface after falling onto the wall surface during the machining process and are not easy to clean. Summary of the Invention

[0004] In order to overcome the above defects, the present invention provides a precision numerical control machining center and method for a reduction gearbox housing, and specifically adopts the following technical solutions:

[0005] A precision numerical control machining center for a reduction gearbox housing, comprising:

[0006] A table chip cleaning member, which is arranged on the bed of the machining center, and comprises a wall surface chip cleaning member and a chip discharging member. The wall surface chip cleaning member is on the wall surface of the bed and automatically scrapes the metal chips adhered to the wall surface downward to the chip discharging member, and the chip discharging member discharges the metal chips on the wall surface.

[0007] A tool chip clearing component is arranged on the spindle component of the machining center. It includes a chip clearing power component and a cooling and chip clearing component. The chip clearing power component drives the cooling and chip clearing component on the Z-axis spindle of the spindle component to cool the machining area of the Z-axis spindle of the spindle component and the front of the machining trajectory and spray away the metal chips.

[0008] Preferably, the wall chip clearing component includes a wall chip scraping and separating component and a reciprocating chip lifting component. The wall chip scraping and separating component and the reciprocating chip lifting component are both arranged on the wall; the wall chip scraping and separating component includes a first motor, a first transmission rod, a transmission tube, a first telescopic tube, a second telescopic tube and a chip clearing plate. The first motor is installed in the installation cavity inside the Y-axis support seat. The first transmission rod is a screw rod. One end of the first transmission rod is connected to the rotating shaft of the first motor, and the other end of the first transmission rod penetrates through the fixing plate on the wall. The transmission tube is fitted and sleeved on the first transmission rod. One end of the first telescopic tube is arranged on the outer wall of the transmission tube. One end of the second telescopic tube is fitted and embedded in the tube of the other end of the first telescopic tube. The chip clearing plate is arranged at the other end of the second telescopic tube, and the chip clearing plate is attached to the wall.

[0009] Preferably, the reciprocating chip lifting component includes a lifting power component and a lifting transmission component. The lifting power component is arranged on the wall, and the lifting transmission component is arranged on the lifting power component; the lifting power component includes a lifting support seat, a second motor, a second transmission rod and an eccentric wheel. The lifting support seat is in a C-shaped tubular form and is arranged at one end of the wall. The second motor is arranged at one end of the lifting support seat. One end of the second transmission rod is connected to the rotating shaft of the second motor, and the other end of the second transmission rod is inserted into the lifting support seat. The eccentric wheel is fixedly sleeved on the second transmission rod, and multiple eccentric wheels are evenly distributed along the axial direction on the second transmission rod.

[0010] Preferably, the lifting transmission component includes a lifting transmission plate and a lifting transmission seat. The lifting transmission plate is installed inside the lifting support seat, and the lifting transmission plate is placed on the eccentric wheel. The lifting transmission seat is in a T-shaped block form and is embedded in the lifting support seat. The bottom surface of the lifting transmission seat is placed on the lifting transmission plate. At the same time, the top end of the lifting transmission seat passes through the lifting support seat and is connected to the end of the chip clearing plate; two sets of the reciprocating chip lifting components are respectively arranged at both ends of the wall, and two sets of the reciprocating chip lifting components are respectively connected to both ends of the chip clearing plate.

[0011] Preferably, the chip removal member includes a selection transmission member and a chip removal conveyor member. The selection transmission member is arranged on the wall surface chip scraping member, and the chip removal conveyor member is arranged on the selection transmission member; the selection transmission member includes a selection transmission housing, a selection transmission tube, a magnetic coil and a first bevel gear. One end of the selection transmission housing is connected to the installation cavity in a penetrating manner, and the other end of the selection transmission housing is connected to a chip removal groove on the wall surface. The selection transmission tube is sleeved on the first transmission rod, and the second slider on the inner wall of the selection transmission tube is matched with the second chute at one end of the first transmission rod. The magnetic coil is embedded in the selection transmission tube, and the first bevel gear is fixedly sleeved on the selection transmission tube and follows the movement.

[0012] Preferably, the chip removal conveyor member includes a chip removal conveyor shaft, a second bevel gear and a chip removal plate. One end of the chip removal conveyor shaft penetrates through the other end of the selection transmission housing. The second bevel gear is fixedly sleeved on the chip removal conveyor shaft, and the second bevel gear meshes with the first bevel gear. The chip removal plate is in a spiral sheet shape. The chip removal plate is fixedly sleeved on one end of the chip removal conveyor shaft, and the chip removal plate is located in the chip removal groove; the two chip removal plates are sleeved on both ends of the chip removal conveyor shaft one by one, and the spiral directions of the two chip removal plates are opposite.

[0013] Preferably, the chip cleaning power member includes a sliding ring, a third motor, a toothed ring and a gear. The sliding ring is sleeved on the Z-axis spindle of the spindle component. The third motor is arranged on the sliding ring. The toothed ring is sleeved on the Z-axis spindle of the spindle component. The gear is sleeved on the rotating shaft of the third motor, and the gear meshes with the toothed ring.

[0014] Preferably, the cooling and chip cleaning member includes a chip cleaning member and a cooling member. The chip cleaning member is arranged on the chip cleaning power member, and the cooling member is arranged on the chip cleaning member; the chip cleaning member includes a bearing disc, a bearing tube, a bearing buckle, a chip cleaning relay box and a chip cleaning nozzle. The bearing disc is sleeved on the Z-axis spindle of the spindle component. The bearing tube is sleeved on the rotating shaft of the third motor, and the bearing tube is circumferentially rotatable and axially locked with the rotating shaft of the third motor. The bottom of the bearing buckle groove is arranged on the bearing tube, and the notch of the bearing buckle is buckled on the bearing disc. The chip cleaning relay box is arranged at the free end of the rotating shaft of the third motor, and the chip cleaning relay box is connected to the high-pressure delivery pipe of the coolant in a penetrating manner; the chip cleaning nozzle penetrates through the bottom surface of the chip cleaning relay box.

[0015] Preferably, the cooling member includes a pressure reducing valve and a cooling spray pipe. The pressure reducing valve is arranged on the chip cleaning relay box, and the inlet of the pressure reducing valve is connected to the chip cleaning relay box in a penetrating manner. One end of the cooling spray pipe is connected to the outlet of the pressure reducing valve in a penetrating manner, and the other end of the cooling spray pipe extends to the processing area to be processed on the Z-axis spindle of the spindle component.

[0016] Preferably, the method for the precision CNC machining center of the speed reducer housing includes:

[0017] 1) Install the speed reducer housing at a predetermined position on the machining center;

[0018] 2) Before the Z-axis spindle of the machining center performs machining, start the tool chip cleaning part to cool the area to be machined and the front of the area to be machined of the speed reducer along the machining trajectory;

[0019] 3) Start the Z-axis spindle of the machining center to machine the speed reducer along the predetermined machining trajectory;

[0020] 4) The first motor starts to rotate forward, and drives the chip cleaning plate through the first transmission rod to scrape the metal chips on the wall surface from top to bottom to the chip discharging conveyor;

[0021] 5) Select a transmission part to transfer the torque of the first transmission rod to the chip discharging conveyor to make the chip discharging plate rotate in the chip discharging groove, so as to discharge the metal chips outwards.

[0022] The present invention has at least the following beneficial effects:

[0023] 1) The precision CNC machining center and method for the speed reducer housing of the present invention have a high degree of automation and high efficiency in cleaning metal chips, and can significantly reduce the blockage, tool breakage and workpiece damage of the chip discharging pipeline;

[0024] 2) The precision CNC machining center and method for the speed reducer housing of the present invention are provided with a wall surface chip cleaning part and a chip discharging part. The wall surface chip cleaning part can automatically reciprocate to scrape the metal chips adhered to the wall surface, and concentrate and scrape the metal chips to the chip discharging part, and the chip discharging part automatically discharges the metal chips, effectively improving the chip discharging efficiency of the metal chips and significantly reducing the blockage, tool breakage and workpiece damage of the chip discharging pipeline.

[0025] Other advantages, objectives and features of the present invention will be partially reflected by the following description, and partially will also be understood by those skilled in the art through the research and practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is the front view of the precision CNC machining center for the speed reducer housing of the present invention;

[0027] Figure 2 It is the top view of the precision CNC machining center for the speed reducer housing of the present invention;

[0028] Figure 3 It is the precision CNC machining center for the speed reducer housing of the present invention Figure 2 The main view of the sectional view in the A-A direction;

[0029] Figure 4 Precision CNC Machining Center for the Reducer Box Housing of the Present Invention Figure 2 Schematic Diagram of the Three-dimensional Structure of the Section in the A-A Direction in the Center

[0030] Figure 5 Precision CNC Machining Center for the Reducer Box Housing of the Present Invention Figure 4 Partial Enlarged View of C in the Center

[0031] Figure 6 Precision CNC Machining Center for the Reducer Box Housing of the Present Invention Figure 2 Schematic Diagram of the Three-dimensional Structure of the Section in the B-B Direction in the Center

[0032] Figure 7 Precision CNC Machining Center for the Reducer Box Housing of the Present Invention Figure 6 Partial Enlarged View of D in the Center

[0033] Figure 8 Precision CNC Machining Center for the Reducer Box Housing of the Present Invention Figure 6 Partial Enlarged View of E in the Center

[0034] Wherein: 1 - Bed, 2 - Spindle Component, 3 - Wall Surface, 4 - Y-axis Support Seat, 5 - Y-axis Slide, 6 - X-axis Support Seat, 7 - X-axis Slide, 8 - First Transmission Rod, 9 - Transmission Pipe, 10 - First Telescopic Pipe, 11 - Second Telescopic Pipe, 12 - Chip Clearing Plate, 13 - Lifting Support Seat, 14 - Second Motor, 15 - Second Transmission Rod, 16 - Eccentric Wheel, 17 - Lifting Transmission Plate, 18 - Lifting Transmission Seat, 19 - Selective Transmission Shell, 20 - Chip Removal Conveyor Shaft, 21 - Chip Removal Plate, 22 - Sliding Ring, 23 - Third Motor, 24 - Tooth Ring, 25 - Gear, 26 - Bearing Disk, 27 - Bearing Pipe, 28 - Bearing Buckle, 29 - Chip Clearing Relay Box, 30 - Chip Clearing Nozzle, 31 - Pressure Reducing Valve, 32 - Cooling Spray Pipe. Specific Embodiment

[0035] Hereinafter, the technical solutions of the present invention will be described in detail by way of examples with reference to the accompanying drawings. It should be noted here that the description of these example embodiments is for helping to understand the present invention, but does not constitute a limitation to the present invention.

[0036] The term " / and" in this text is merely a description of the associated relationship of associated objects, indicating that there can be three relationships. For example, A / and B can represent: A exists alone, B exists alone, and A and B exist simultaneously. The term " / and" in this text is a description of another associated object relationship, indicating that there can be two relationships. For example, A / and B can represent: A exists alone, and A and B exist alone. In addition, the character " / " in this text generally represents that the front and rear associated objects are in an "or" relationship.

[0037] According to Figures 1 - 8 As shown, a precision CNC machining center and method for a speed reducer housing include a table chip cleaning part and a tool chip cleaning part. The table chip cleaning part is arranged on the bed 1 of the machining center, and the tool chip cleaning part is arranged on the spindle component 2 of the machining center. The bed 1 includes a wall surface 3, a Y-axis support sliding part, and an X-axis support sliding part. The Y-axis support sliding part is arranged on the wall surface 3, and the X-axis support sliding part is arranged on the Y-axis support sliding part. The wall surface 3 is in an inclined surface shape to improve the portability of cleaning metal chips adhered to the wall surface 3. The Y-axis support sliding part includes a Y-axis support seat 4 and a Y-axis sliding part. The Y-axis support seat 4 is integrally in a rectangular block shape. The bottom surface of the Y-axis support seat 4 is vertically fixed on the wall surface 3, and the top surface of the Y-axis support seat 4 is in a triangular inclined surface shape to improve the sliding of metal chips adhered to the top surface of the Y-axis support seat 4. The Y-axis support seat 4 is used to provide support for the Y-axis sliding part. The Y-axis sliding part includes a Y-axis power part and a Y-axis slide 5. The Y-axis power part is embedded in the Y-axis support seat 4. The bottom surface of the Y-axis slide 5 is in a triangular surface shape. The Y-axis slide 5 is slidably installed on the top surface of the Y-axis support seat 4, and the Y-axis slide 5 is connected to the Y-axis power part to be pushed by the Y-axis power part to reciprocate along the Y direction on the Y-axis support seat 4.

[0038] The X-axis support sliding part includes an X-axis support seat 6 and an X-axis sliding part. The bottom surface of the X-axis support seat 6 is vertically fixed on the top surface of the Y-axis slide 5. The top surface of the X-axis support seat 6 is in a triangular inclined surface shape to facilitate the sliding of metal chips adhered to the top surface of the X-axis support seat 6. The X-axis support seat 6 is used to provide support for the X-axis sliding part. The X-axis sliding part includes an X-axis power part and an X-axis slide 7. The X-axis power part is embedded in the X-axis support seat 6. The bottom surface of the X-axis slide 7 is in a triangular surface shape. The X-axis slide 7 is slidably installed on the top surface of the X-axis support seat 6, and the X-axis slide 7 is connected to the X-axis power part to be pushed by the X-axis power part to reciprocate along the X-axis direction on the X-axis support seat 6. The top surface of the X-axis slide 7 is used to install the speed reducer housing to be machined.

[0039] The tabletop chip cleaning member includes a wall surface chip cleaning member and a chip discharging member, and both the wall surface chip cleaning member and the chip discharging member are provided on the wall surface 3. The wall surface chip cleaning member includes a wall surface chip scraping and separating member and a reciprocating chip cleaning and lifting member, and both the wall surface chip scraping and separating member and the reciprocating chip cleaning and lifting member are provided on the wall surface 3. The wall surface chip scraping and separating member includes a first motor, a first transmission rod 8, a transmission pipe 9, a first telescopic pipe 10, a second telescopic pipe 11, and a chip cleaning plate 12. The first motor is fixedly installed in the installation cavity within the Y-axis support seat 4. The first transmission rod 8 is a screw rod. One end of the first transmission rod 8 is fixedly connected to the rotating shaft of the first motor, and the other end of the first transmission rod 8 penetrates through the fixing plate on the wall surface 3, and the axis of the first transmission rod 8 is parallel to the wall surface 3. The inner wall of the transmission pipe 9 is provided with internal threads. The transmission pipe 9 is sleeved on the first transmission rod 8, and the transmission pipe 9 cooperates with the first transmission rod 8. The first telescopic pipe 10 is in a rectangular tubular shape. One end of the first telescopic pipe 10 is fixedly provided on the outer wall of the transmission pipe 9. The second telescopic pipe 11 is in a rectangular tubular shape. One end of the second telescopic pipe 11 is fitted and embedded in the tube of the other end of the first telescopic pipe 10, so that the second telescopic pipe 11 can slide axially back and forth within the first telescopic pipe 10. And the second telescopic pipe 11 can prevent axial sliding out from the first telescopic pipe 10. The chip cleaning plate 12 is in a rectangular plate shape. The axial center of the chip cleaning plate 12 is fixedly provided on the other end of the second telescopic pipe 11, and the chip cleaning plate 12 adheres to the wall surface 3 under the action of gravity. As an option, when the metal chips to be removed cannot be attracted by a magnet, the chip cleaning plate 12 is a magnet block to improve the adhesion strength between the chip cleaning plate 12 and the wall surface 3 and improve the scraping efficiency of the metal chips on the wall surface 3.

[0040] When the first motor drives the first transmission rod 8 to rotate forward, it will drive the transmission pipe 9 to slide downward axially. The transmission pipe 9 drives the chip cleaning plate 12 to slide downward on the wall surface 3 through the first telescopic pipe 10 and the second telescopic pipe 11, so as to scrape the metal chips adhering to the wall surface 3 towards the chip discharging member.

[0041] The reciprocating chip cleaning and lifting member includes a lifting power member and a lifting transmission member. The lifting power member is disposed on the wall surface 3, and the lifting transmission member is disposed on the lifting power member. The lifting power member includes a lifting support base 13, a second motor 14, a second transmission rod 15, and an eccentric wheel 16. The lifting support base 13 is in a C-shaped tubular form and is fixedly disposed at one end of the wall surface 3. The second motor 14 is fixedly disposed at one end of the lifting support base 13. One end of the second transmission rod 15 is fixedly disposed on the rotating shaft of the second motor 14, and the other end of the second transmission rod 15 is inserted into the lifting support base 13. The eccentric wheel 16 is fixedly sleeved on the second transmission rod 15. There are three eccentric wheels 16, and the three eccentric wheels 16 are evenly distributed along the axial direction on the second transmission rod 15 to support the up and down movement of the lifting transmission member.

[0042] The lifting transmission member includes a lifting transmission plate 17 and a lifting transmission seat 18. The lifting transmission plate 17 is in a rectangular block form. The lifting transmission plate 17 is installed in the lifting support base 13, and the lifting transmission plate 17 is placed on the eccentric wheel 16, such that the lifting transmission plate 17 is parallel to the bottom surface of the lifting support base 13. At the same time, the first slider on the lifting transmission plate 17 cooperates with the first chute on the inner wall of the lifting support base 13, such that the lifting transmission plate 17 can move up and down in the lifting support base 13 through the first slider and the first chute. When the second motor 14 drives the eccentric wheel 16 to rotate through the second transmission rod 15, it will push the lifting transmission plate 17 to move up and down in the lifting transmission seat 18. The lifting transmission seat 18 is in a T-shaped block form. The lifting transmission seat 18 is embedded in the lifting support base 13, and the bottom surface of the lifting transmission seat 18 is placed on the lifting transmission plate 17. At the same time, the top end of the lifting transmission seat 18 passes through the lifting support base 13 and is fixedly connected to the end of the chip cleaning plate 12. There are two sets of the reciprocating chip cleaning and lifting members, and the two sets of the reciprocating chip cleaning and lifting members are respectively disposed at both ends of the wall surface 3. At the same time, the two sets of the reciprocating chip cleaning and lifting members are respectively fixedly connected to both ends of the chip cleaning plate 12.

[0043] When the chip cleaning plate 12 needs to move upward from the lower part of the wall surface 3, in order to prevent the chip cleaning plate 12 from driving the metal chips on the wall surface 3 upward during the upward movement, it is necessary to first lift the chip cleaning plate 12 from the wall surface 3 through the reciprocating chip cleaning and lifting member, and then start the first motor to rotate in the reverse direction, such that the chip cleaning plate 12 moves upward from the lower part of the wall surface 3.

[0044] The chip removal member includes a selection transmission member and a chip removal conveyor member. The selection transmission member is arranged on the wall chip scraping member, and the chip removal conveyor member is arranged on the selection transmission member. The selection transmission member includes a selection transmission housing 19, a selection transmission pipe, a magnetic coil, and a first bevel gear. One end of the selection transmission housing 19 is connected to the installation cavity in a penetrating manner, and the other end of the selection transmission housing 19 is fixedly connected in a chip removal groove on the wall surface 3. The chip removal groove is in an arc groove shape and is located at the connection between the wall surface 3 and the Y-axis support seat 4, so that the metal chips on the wall surface 3 can be scraped into the chip removal groove. The selection transmission pipe is slidably sleeved on one end of the first transmission rod 8, and the second slider on the inner wall of the selection transmission pipe is matched with the second chute on one end of the first transmission rod 8. So that circumferential transmission and axial sliding can be carried out between the selection transmission pipe and the first transmission rod 8 through the second slider and the second chute. The magnetic coil is fixedly embedded in the selection transmission pipe. When the magnetic coil is energized with direct current to generate a magnetic field, it will push the selection transmission pipe to slide back and forth on the first transmission rod 8. The first bevel gear is fixedly sleeved on the selection transmission pipe and follows it.

[0045] The chip removal conveyor member includes a chip removal conveyor shaft 20, a second bevel gear, and a chip removal plate 21. One end of the chip removal conveyor shaft 20 penetrates through the other end of the selection transmission housing 19, so that the chip removal conveyor shaft 20 can rotate circumferentially on the selection transmission housing 19, and the axis of the chip removal conveyor shaft 20 coincides with the axis of the chip removal groove. The second bevel gear is fixedly sleeved on the chip removal conveyor shaft 20, and the second bevel gear meshes with the first bevel gear. The chip removal conveyor shaft 20 is driven by the first transmission rod 8 through the second bevel gear and the first bevel gear. The chip removal plate 21 is in a spiral sheet shape, and the chip removal plate 21 is fixedly sleeved on one end of the chip removal conveyor shaft 20, and the chip removal plate 21 is located in the chip removal groove. There are two chip removal plates 21, and the two chip removal plates 21 are respectively sleeved on both ends of the chip removal conveyor shaft 20 one by one, and the spiral directions of the two chip removal plates 21 are opposite. There are two sets of tabletop chip removal members, and the two sets of tabletop chip removal members correspond to the two wall surfaces 3 one by one.

[0046] The chip clearing component of the tool includes a chip clearing power component and a cooling and chip clearing component. The chip clearing power component is arranged on the Z-axis main shaft of the main shaft component 2, and the cooling and chip clearing component is arranged on the chip clearing power component. The chip clearing power component includes a slip ring 22, a third motor 23, a gear ring 24 and a gear 25. The slip ring 22 is sleeved on the Z-axis main shaft of the main shaft component 2, and the side wall of the third motor 23 is fixedly arranged on the slip ring 22, so that the third motor 23 can circumferentially slide around the Z-axis main shaft of the main shaft component 2 through the slip ring 22. The gear ring 24 is fixedly sleeved on the Z-axis main shaft of the main shaft component 2, and the gear 25 is fixedly sleeved on the rotating shaft of the third motor 23, and the gear 25 meshes with the gear ring 24.

[0047] The cooling and chip clearing component includes a chip clearing component and a cooling component. The chip clearing component is arranged on the chip clearing power component, and the cooling component is arranged on the chip clearing component. The chip clearing component includes a bearing disc 26, a bearing pipe 27, a bearing buckle 28, a chip clearing relay box 29 and a chip clearing nozzle 30. The bearing disc 26 is in the shape of an annular plate, and the bearing disc 26 is fixedly sleeved on the Z-axis main shaft of the main shaft component 2. The bearing pipe 27 is sleeved on the rotating shaft of the third motor 23, and the bearing pipe 27 is circumferentially rotatable and axially locked with the rotating shaft of the third motor 23 to bear the weights of the third motor 23, the chip clearing component and the cooling component. The bearing buckle 28 is in the shape of a rectangular groove, the bottom of the groove of the bearing buckle 28 is fixedly arranged on the bearing pipe 27, and the notch of the bearing buckle 28 is buckled on the bearing disc 26. When the third motor 23 drives the gear 25 to rotate, it will drive the third motor 23 and the chip clearing relay box 29 to rotate circumferentially along the Z-axis main shaft of the main shaft component 2 through the gear ring 24. So as to always adjust the spraying direction of the chip clearing nozzle 30 to be in front of the Z-axis main shaft of the main shaft component 2 to be machined. The chip clearing relay box 29 is fixedly arranged at the free end of the rotating shaft of the third motor 23, and the chip clearing relay box 29 is connected in through-hole with the high-pressure delivery pipe of the coolant. The chip clearing nozzle 30 is vertically and fixedly penetrated through the bottom surface of the chip clearing relay box 29, and a plurality of the chip clearing nozzles 30 are evenly distributed on the bottom surface of the chip clearing relay box 29 for spraying the coolant towards the front of the Z-axis main shaft of the main shaft component 2 to be machined.

[0048] The cooling component includes a pressure reducing valve 31 and a cooling spray pipe 32. The pressure reducing valve 31 is arranged on the chip clearing relay box 29, and the inlet of the pressure reducing valve 31 is in through-hole connection with the chip clearing relay box 29. One end of the cooling spray pipe 32 is in through-hole connection with the outlet of the pressure reducing valve 31, and the other end of the cooling spray pipe 32 extends to the machining position of the Z-axis main shaft of the main shaft component 2 to cool the Z-axis main shaft of the main shaft component 2 being machined.

[0049] The usage method of a precision CNC machining center for a speed reducer housing includes the following steps:

[0050] 1) Install the speed reducer housing at a predetermined position on the machining center;

[0051] 2) Before the Z-axis spindle of the machining center starts machining, start the tool chip cleaning part to cool the area to be machined and the front of the area to be machined of the speed reducer according to the machining trajectory;

[0052] 3) Start the Z-axis spindle of the machining center to machine the speed reducer according to the predetermined machining trajectory;

[0053] 4) The first motor starts to rotate forward, and drives the chip cleaning plate 12 through the first transmission rod 8 to scrape the metal chips on the wall surface 3 from top to bottom to the chip discharging conveyor;

[0054] 5) Select a transmission part to transfer the torque of the first transmission rod 8 to the chip discharging conveyor to make the chip discharging plate 21 rotate in the chip discharging groove to discharge the metal chips outwards.

[0055] Although the embodiments of the present invention have been disclosed as above, it is not limited to the applications listed in the specification and embodiments. It can be fully applied to various fields suitable for the present invention. For those familiar with the field, additional modifications can be easily achieved. Therefore, without departing from the general concept defined by the claims and the equivalent scope, the present invention is not limited to the specific details and the illustrated examples here.

Claims

1. Precision CNC machining center for the housing of a speed reducer, characterized in that, it includes: Table chip cleaning parts, which are arranged on the bed of the machining center and include wall chip cleaning parts and chip discharging parts. The wall chip cleaning parts are on the wall of the bed and automatically scrape the metal chips adhered to the wall downward to the chip discharging parts, and the chip discharging parts discharge the metal chips on the wall; Tool chip cleaning parts, which are arranged on the spindle component of the machining center and include chip cleaning power parts and cooling chip cleaning parts. The chip cleaning power parts drive the cooling chip cleaning parts on the Z-axis spindle of the spindle component to cool and spray away the metal chips at the machining position of the Z-axis spindle of the spindle component and in front of the machining track; The wall chip cleaning parts include a wall chip cleaning and scraping part and a reciprocating chip cleaning and lifting part, and both the wall chip cleaning and scraping part and the reciprocating chip cleaning and lifting part are arranged on the wall; the wall chip cleaning and scraping part includes a first motor, a first transmission rod, a transmission pipe, a first telescopic pipe, a second telescopic pipe and a chip cleaning plate. The first motor is installed in the installation cavity on the Y-axis support seat of the bed. The first transmission rod is a screw rod. One end of the first transmission rod is connected to the rotating shaft of the first motor, and the other end of the first transmission rod penetrates through the fixing plate on the wall. The transmission pipe is fitted and sleeved on the first transmission rod. One end of the first telescopic pipe is arranged on the outer wall of the transmission pipe. One end of the second telescopic pipe is fitted and embedded in the other end pipe of the first telescopic pipe. The chip cleaning plate is arranged on the other end of the second telescopic pipe, and the chip cleaning plate is attached to the wall; The reciprocating chip cleaning and lifting part includes a lifting power part and a lifting transmission part. The lifting power part is arranged on the wall, and the lifting transmission part is arranged on the lifting power part; the lifting power part includes a lifting support seat, a second motor, a second transmission rod and an eccentric wheel. The lifting support seat is in a C-shaped tubular shape and is arranged at one end of the wall. The second motor is arranged at one end of the lifting support seat. One end of the second transmission rod is connected to the rotating shaft of the second motor, and the other end of the second transmission rod is inserted into the lifting support seat. The eccentric wheel is fixedly sleeved on the second transmission rod, and multiple eccentric wheels are evenly distributed along the axial direction on the second transmission rod; The lifting transmission part includes a lifting transmission plate and a lifting transmission seat. The lifting transmission plate is installed in the lifting support seat and is padded on the eccentric wheel. The lifting transmission seat is in a T-shaped block shape and is embedded in the lifting support seat. The bottom surface of the lifting transmission seat is padded on the lifting transmission plate. At the same time, the top end of the lifting transmission seat passes through the lifting support seat and is connected to the end of the chip cleaning plate; two sets of the reciprocating chip cleaning and lifting parts are respectively arranged at both ends of the wall, and the two sets of the reciprocating chip cleaning and lifting parts are respectively connected to both ends of the chip cleaning plate.

2. The precision CNC machining center for the housing of a speed reducer according to claim 1, characterized in that, The chip removal member includes a selective transmission member and a chip removal conveyor member. The selective transmission member is arranged on the wall surface chip scraping member, and the chip removal conveyor member is arranged on the selective transmission member. The selective transmission member includes a selective transmission housing, a selective transmission tube, a magnetic coil, and a first bevel gear. One end of the selective transmission housing is connected to the installation cavity in a penetrating manner, and the other end of the selective transmission housing is connected to the chip removal groove on the wall surface. The selective transmission tube is sleeved on the first transmission rod, and the second slider on the inner wall of the selective transmission tube cooperates with the second chute on one end of the first transmission rod. The magnetic coil is embedded in the selective transmission tube, and the first bevel gear is fixedly sleeved on the selective transmission tube and follows it.

3. The precision CNC machining center for the reduction gearbox housing according to claim 2, wherein, the chip removal conveyor member includes a chip removal conveyor shaft, a second bevel gear, and a chip removal plate. One end of the chip removal conveyor shaft penetrates through the other end of the selective transmission housing. The second bevel gear is fixedly sleeved on the chip removal conveyor shaft, and the second bevel gear meshes with the first bevel gear. The chip removal plate is in a spiral sheet shape, and the chip removal plate is fixedly sleeved on one end of the chip removal conveyor shaft, and the chip removal plate is located in the chip removal groove. The two chip removal plates are respectively sleeved on both ends of the chip removal conveyor shaft one by one, and the spiral directions of the two chip removal plates are opposite.

4. The precision CNC machining center for the reduction gearbox housing according to claim 1, wherein, the chip cleaning power member includes a sliding ring, a third motor, a toothed ring, and a gear. The sliding ring is sleeved on the Z-axis main shaft of the spindle component. The third motor is arranged on the sliding ring. The toothed ring is sleeved on the Z-axis main shaft of the spindle component. The gear is sleeved on the rotating shaft of the third motor, and the gear meshes with the toothed ring.

5. The precision CNC machining center for the reduction gearbox housing according to claim 4, wherein, the cooling and chip cleaning member includes a chip cleaning member and a cooling member. The chip cleaning member is arranged on the chip cleaning power member, and the cooling member is arranged on the chip cleaning member. The chip cleaning member includes a bearing disc, a bearing tube, a bearing buckle, a chip cleaning relay box, and a chip cleaning nozzle. The bearing disc is sleeved on the Z-axis main shaft of the spindle component. The bearing tube is sleeved on the rotating shaft of the third motor, and the bearing tube rotates circumferentially and is axially locked with the rotating shaft of the third motor. The bottom of the bearing buckle groove is arranged on the bearing tube, and the notch of the bearing buckle buckles on the bearing disc. The chip cleaning relay box is arranged at the free end of the rotating shaft of the third motor, and the chip cleaning relay box is connected to the high-pressure delivery pipe of the coolant in a penetrating manner. The chip cleaning nozzle penetrates through the bottom surface of the chip cleaning relay box.

6. The precision CNC machining center for the reduction gearbox housing according to claim 5, wherein, the cooling member includes a pressure reducing valve and a cooling spray pipe. The pressure reducing valve is arranged on the chip cleaning relay box, and the inlet of the pressure reducing valve is connected to the chip cleaning relay box in a penetrating manner. One end of the cooling spray pipe is connected to the outlet of the pressure reducing valve in a penetrating manner, and the other end of the cooling spray pipe extends to the machining area to be processed on the Z-axis main shaft of the spindle component.

7. The machining method of the precision CNC machining center for the reduction gearbox housing according to claim 2, characterized in that, it includes: 1) Install the reduction gearbox housing at a predetermined position of the machining center; 2) Before the Z-axis spindle of the machining center performs machining, start the tool chip cleaning member to cool the area to be machined and the front of the area to be machined of the reduction gearbox according to the machining trajectory; 3) Start the Z-axis spindle of the machining center to machine the reduction gearbox according to the predetermined machining trajectory; 4) Start the first motor to rotate forward, drive the chip cleaning plate through the first transmission rod to scrape the metal chips on the wall surface from top to bottom to the chip removal conveyor; 5) Select a transmission member to transmit the torque of the first transmission rod to the chip removal conveyor to rotate the chip removal plate in the chip removal groove to discharge the metal chips outwards.

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