Feeding device for precision part machining

Abstract

The invention relates to the related technical field of precision part machining, in particular to a feeding device for precision part machining, which comprises a machining machine tool, a machining tool magazine seat and a machining table, and is characterized in that a stepping screw rod for driving the machining table to move is arranged at the inner bottom of the machining machine tool through a machine tool base; a base guide rail used for limiting and guiding the machining table is arranged on the side edge of the stepping screw rod in the machining machine tool. Chippings on the periphery of the stepping screw rod which rotates are cleaned through air blowing spray heads in the air blowing cleaning assembly, and the multiple air blowing spray heads which are precisely designed are ingeniously arranged in the key peripheral area of the stepping screw rod; continuous clean compressed air flow is utilized to form a directional air flow barrier, the upper surface of the lead screw is protected, meanwhile, the periphery of the lead screw can be cleaned, scraps on the base guide rail are cleaned in a back-and-forth swinging mode by twisting a cleaning plate in the cleaning assembly, the cleanliness of the base guide rail is improved, and the feeding stability performance of the machining table is improved.

Description

Technical Field

[0001] The present invention relates to the technical field related to the processing of precision parts, and particularly relates to a feeding device for processing precision parts. Background Art

[0002] The feed mechanism of a machine tool is mainly used to control the movement path, speed, and positioning accuracy of a tool or a workpiece. It is responsible for controlling the relative auxiliary movement, i.e., the feed movement, between the tool and the workpiece during the cutting process. The purpose is to continuously introduce new metal layers into the cutting, so as to machine the entire surface of the workpiece. During the processing, through precise control, the feed mechanism enables the machine tool to perform linear or rotational movements according to a preset program, and complete operations such as drilling, milling, and turning.

[0003] A ball screw is a mechanical transmission device that transmits motion and force through rolling elements. It consists of a screw rod and a ball nut. By using the balls to roll between the screw and the nut, the friction is reduced and the transmission efficiency is improved. When the screw rod rotates, the balls in the ball nut roll in the thread grooves of the nut and the screw rod, thereby converting the rotational motion into a linear motion, and further realizing the feed movement of the machined part. However, currently, the screw rod driving the nut seat and the guide rail limiting the machining table are both exposed. There is a risk that some smaller debris will fall and adhere to the outer periphery of the screw rod and the guide rail, which will cause scratches on the surfaces of the screw rod and the guide rail, and further affect the accuracy of the screw rod and the guide rail itself, resulting in unstable swing of the feed movement. Currently, air guns are added outside the machine tool to blow and clean the machining table of the machine tool before and after feeding and blanking of the parts during machining. This increases the labor intensity of the workshop workers, reduces the production efficiency, and at the same time, the manual cleaning is not thorough and the cleaning effect is low. Summary of the Invention

[0004] In order to overcome the deficiencies of the prior art, the present invention provides a feeding device for processing precision parts.

[0005] To solve the above technical problems, the present invention provides the following technical solution: A feeding device for processing precision parts, including a processing machine tool, a processing tool magazine seat, and a processing table. A driving screw rod for driving the lifting movement of the processing tool magazine seat is arranged inside the processing machine tool. A stepping screw rod for driving the movement of the processing table is arranged at the inner bottom of the processing machine tool through a machine tool base. A base guide rail for limiting and guiding the processing table is arranged at the side of the stepping screw rod inside the processing machine tool. At one end of the machine tool base away from the driving lead screw, there is a blast cleaning assembly for cleaning the debris on the outer periphery of the stepping lead screw. The blast seat provided by the blast cleaning assembly always blows and cleans the debris adhering to the outer periphery of the stepping lead screw, and the rotating column provided by the blast cleaning assembly moves synchronously with the stepping lead screw. The processing table is fixedly installed at the top position of the base guide rail, and a cleaning frame is arranged inside the cleaning frame. There is a twisting cleaning assembly for cleaning the debris on the base guide rail. The twisting cleaning assembly is provided with a cleaning plate for reciprocally sweeping and cleaning the surface of the base guide rail. The twisting cleaning assembly also includes a worm gear for driving the cleaning plate to move.

[0006] As a preferred technical solution of the present invention, the processing machine tool is provided with a machine tool processing side door with a driving handle, and a numerical control operation controller is arranged on one side of the machine tool processing side door close to the driving handle. A servo motor is fixedly installed on one side of the interior of the processing machine tool away from the machine tool processing side door, and the driving lead screw is fixedly installed on the output end of the servo motor. Side guide rails are fixedly installed on both sides of the driving lead screw, and the processing tool magazine seat slides on the side guide rails and is threadedly connected through the driving lead screw.

[0007] The top of the machine tool base is fixedly installed with a triangular fixing frame, the base guide rail is fixedly installed on the top of the triangular fixing frame, the bottom of the processing table is connected to the top of the base guide rail through a base slider, and the bottom of the processing table is movably connected through a ball nut to the stepping lead screw. The machine tool base is provided with a discharge hole for discharging processing waste chips. A stepping motor is fixedly installed at one end of the machine tool base close to the driving lead screw, and the stepping lead screw is fixedly installed on the output end of the stepping motor.

[0008] As a preferred technical solution of the present invention, the blast cleaning assembly further includes a first gear and a second gear. A rotating cover is fixedly installed at one end of the machine tool base away from the driving lead screw. The top of the stepping lead screw extends through to the inside of the rotating cover, and a first gear is fixedly installed at the top end of the stepping lead screw inside the rotating cover. One end of a fixed rotating shaft is movably connected to the machine tool base at one end close to the rotating cover. One end of the fixed rotating shaft extends through to the inside of the rotating cover and is fixedly installed with a second gear. The second gear is movably meshed with the first gear. The rotating column is fixedly installed at the other end of the fixed rotating shaft and moves inside the machine tool base.

[0009] As a preferred technical solution of the present invention, a waveform limiting groove is provided on the outer periphery of the rotating column. A limiting base is fixedly installed on one side of the bottom of the rotating column of the machine tool base. T-shaped sliding grooves are provided on the top of the limiting base, and T-shaped sliders are slidably connected in the T-shaped sliding grooves. A movable rod is fixedly installed on the top of the T-shaped slider. One end of the movable rod is fixedly installed with an arc-shaped limiting rod that matches the size of the waveform limiting groove, and the arc-shaped limiting rod moves in the waveform limiting groove. The other end of the movable rod is fixedly installed with a connecting plate on the side away from the rotating column.

[0010] The machine tool base is fixedly installed with a cleaning cylinder at one end of the limiting base away from the fixed rotating shaft. A cleaning piston plate is movably arranged inside the cleaning cylinder. The cleaning piston plate is fixedly installed with a cleaning piston rod, and the cleaning piston rod is fixedly installed on the top of the connecting plate. An air inlet pipe and an air outlet pipe are arranged on the side of the cleaning cylinder away from the limiting base, and the air outlet pipe is connected to the air blowing seat. The air blowing seat is fixedly installed with a plurality of air blowing nozzles through bolts, and the air blowing seat is located at the center of the top of the stepping screw rod.

[0011] As a preferred technical solution of the present invention, the twisting and cleaning assembly further includes a rotating gear that moves at the bottom of the cleaning frame. A base rack plate is fixedly installed on the side of the triangular fixing frame away from the stepping screw rod. The inner bottom of the cleaning frame is movably connected with a supporting rotating shaft. The rotating gear is fixedly installed at the bottom end of the supporting rotating shaft, and the rotating gear is movably meshed with the base rack plate. A rotating shaft is movably connected to the side of the cleaning frame close to the processing table. A worm gear is fixedly installed on the rotating shaft. The top of the supporting rotating shaft penetrates and extends into the cleaning frame and is fixedly installed with a worm that is movably meshed with the worm gear.

[0012] The top end of the rotating shaft is fixedly installed with an arc-shaped rotating plate. The arc-shaped rotating plate is fixedly installed with a rotating shaft. The center of the end of the cleaning frame away from the processing table is movably connected with a base rotating shaft. The base rotating shaft is fixedly installed with a U-shaped connecting plate. An arc-shaped turning frame is fixedly installed at one end of the U-shaped connecting plate located inside the cleaning frame. The rotating shaft is movably connected with a turning block that matches the size of the arc-shaped turning frame at the end away from the arc-shaped rotating plate, and the turning block moves inside the arc-shaped turning frame.

[0013] The U-shaped connecting plate is fixedly installed with a cleaning plate at the end away from the processing table. The cleaning plate movably penetrates outside the cleaning frame. The cleaning frame is provided with a cleaning hole that matches the size of the cleaning plate, and the cleaning plate moves in the cleaning hole. The cleaning plate is fixedly installed with a cleaning brush at the bottom outside the cleaning frame, and the cleaning brush moves on the top of the base guide rail.

[0014] Compared with the prior art, the beneficial effects that the present invention can achieve are: In the present invention, debris on the outer periphery of the rotating stepping screw is cleaned by the air-blowing nozzles in the air-blowing cleaning assembly. A plurality of precisely designed air-blowing nozzles are cleverly arranged in the key outer peripheral areas of the stepping screw, especially in the exposed sections near the nut and the load end. A directional air flow barrier is formed by the continuous clean compressed air flow to protect the upper surface of the screw, and at the same time, the cleaning of the outer periphery of the screw can be achieved. The debris on the base guide rail is cleaned back and forth by twisting the cleaning plate in the twisting cleaning assembly, improving the cleanliness of the base guide rail, enabling the processing table to move stably and smoothly during the feeding motion, and enhancing the stable performance of the feeding of the processing table.

[0015] In the present invention, the fixed rotating shaft in the air-blowing cleaning assembly rotates to drive the synchronous rotation of the rotating column. During the rotation of the rotating column, the arc-shaped limiting rod and the movable rod are driven to move stably under the action of the T-shaped sliding groove and the T-shaped slider through the waveform limiting groove. The arc-shaped limiting rod drives the cleaning piston rod outside the rotating column to reciprocate through the connecting plate. The real-time cleaning effect of the debris on the top of the screw is achieved by the air-blowing of the cleaning cylinder in cooperation with the air-blowing nozzles. It can not only reduce the probability of debris falling onto the screw by air-blowing, but also clean the adhered debris by air-blowing, ensuring continuous air-blowing and having a powerful air-blowing effect on the screw.

[0016] In the present invention, the worm gear, the rotating shaft, the arc-shaped rotating plate and the flipping block in the twisting cleaning assembly are twisted to drive the arc-shaped flipping frame to perform a reciprocating flipping motion. The arc-shaped flipping frame drives the cleaning plate to move synchronously through the U-shaped connecting plate. The cleaning brush under the cleaning plate sweeps and cleans the debris on the base guide rail, removing the debris on the base guide rail. The cleaning plate is a reciprocating swinging motion structure, which can clean the residual debris on the base guide rail from both sides, having a strong cleaning ability for the debris on the base guide rail and a wide cleaning range, improving the precision of precision part processing and the quality of precision part processing.

[0017] In the present invention, the processing tool magazine seat on the driving screw is driven by the servo motor to perform a stable lifting motion under the action of the side guide rail, meeting the processing of different precision parts on the top of the processing table. The stepping screw is driven to rotate by the output end of the stepping motor. The processing table on the stepping screw realizes stable feeding processing under the limiting action of the base guide rail, enabling the precision part to feed under the tool of the processing tool magazine seat in the longitudinal plane. The whole precision part processing process is stable and smooth.

[0018] In the present invention, the rotation of the fixed rotating shaft in the rotating cover is driven by the second gear. During the rotation of the fixed rotating shaft, the rotating column is driven to rotate synchronously. During the rotation of the rotating column, the arc-shaped limiting rod is driven to move horizontally back and forth through the waveform limiting groove. The arc-shaped limiting rod drives the cleaning piston plate in the cleaning cylinder to reciprocate synchronously through the connecting plate, so as to realize the blowing and cleaning of the stepping screw regardless of the feeding direction of the processing table. The blowing and cleaning can accompany the whole processing movement process, and the blowing and cleaning eliminates the debris on the outer periphery of the stepping screw, improving the stable effect of the feeding of the processing table.

[0019] In the present invention, the synchronous rotation of the worm in the cleaning frame is driven by the rotating gear in cooperation with the base rack plate and the support rotating shaft. The worm drives the worm wheel on the rotating shaft to rotate. The worm wheel will drive the arc-shaped rotating plate and the rotating shaft to move synchronously through the rotating shaft. The turning block on the rotating shaft moves in the arc-shaped turning frame, and the movement of the turning block will drive the arc-shaped turning frame to perform a reciprocating turning movement, so as to realize that the cleaning plate scrapes the debris on the base guide rail back and forth. The cleaning plate swings back and forth in a fan shape centered on the base guide rail, greatly improving the cleaning effect of the debris on the base guide rail. Brief Description of the Drawings

[0020] Figure 1 is a schematic diagram of the overall structure of the present invention; Figure 2 is a schematic diagram of the internal structure of the processing machine tool of the present invention; Figure 3 is a schematic diagram of the structure of the machine tool base of the present invention; Figure 4 is a schematic diagram of the structure of the driving screw of the present invention; Figure 5 is a schematic diagram of the structure of the processing table of the present invention; Figure 6 is a schematic diagram of the structure of the triangular fixing frame of the present invention; Figure 7 is a schematic diagram of the structure of the stepping screw of the present invention; Figure 8 is a schematic diagram of the inner bottom structure of the machine tool base of the present invention; Figure 9 is a schematic diagram of the structure of the rotating column of the present invention; Figure 10 is a schematic diagram of the structure of the cleaning cylinder of the present invention; Figure 11 is a schematic diagram of the internal structure of the cleaning frame of the present invention; Figure 12 is a schematic diagram of the structure of the arc-shaped turning frame of the present invention; Figure 13 is a schematic diagram of the structure of the worm wheel of the present invention.

[0021] Wherein: 10, machining tool; 11, machining tool magazine seat; 12, machining table; 13, side door of the machine tool for machining; 14, numerical control operation controller; 15, servo motor; 16, driving lead screw; 17, side guide rail; 20, stepping lead screw; 21, base guide rail; 22, machine tool base; 23, triangular fixing bracket; 24, discharge hole; 25, stepping motor; 26, base rack plate; 27, base slider; 30, rotating cover; 31, first gear; 32, second gear; 33, fixed rotating shaft; 34, rotating column; 35, waveform limiting groove; 36, arc-shaped limiting rod; 37, limiting base; 38, T-shaped sliding groove; 39, T-shaped slider; 40, cleaning cylinder; 41, air blowing seat; 42, air blowing nozzle; 43, movable rod; 44, connecting plate; 45, cleaning piston rod; 46, cleaning piston plate; 47, intake pipe; 48, exhaust pipe; 50, cleaning rack; 51, rotating gear; 52, support rotating shaft; 53, rotating shaft; 54, worm gear; 55, worm; 56, arc-shaped rotating plate; 57, rotating shaft; 58, flipping block; 59, cleaning hole; 60, cleaning plate; 61, base rotating shaft; 62, arc-shaped flipping rack; 63, U-shaped connecting plate; 64, cleaning brush. Detailed implementation manners

[0022] In order to make the technical means, creative features, achieved purposes and effects of the present invention easy to understand, the present invention will be further described below in conjunction with specific embodiments. However, the following embodiments are only the preferred embodiments of the present invention, not all of them. Based on the embodiments in the implementation manners, other embodiments obtained by those skilled in the art without creative efforts all belong to the protection scope of the present invention. The experimental methods in the following embodiments are all conventional methods unless otherwise specified. The materials, reagents, etc. used in the following embodiments can all be obtained from commercial channels unless otherwise specified.

[0023] Embodiment: As Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 shown, a feeding device for precision part machining includes a machining tool 10, a machining tool magazine seat 11 and a machining table 12. A driving lead screw 16 for driving the machining tool magazine seat 11 to move up and down is arranged inside the machining tool 10. A stepping lead screw 20 for driving the machining table 12 to move is arranged at the inner bottom of the machining tool 10 through a machine tool base 22. A base guide rail 21 for limiting and guiding the machining table 12 is arranged on the side of the stepping lead screw 20 inside the machining tool 10; Refer to Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6, the processing machine tool 10 is provided with a machine tool processing side door 13 with a driving handle. Through the machine tool processing side door 13, the processing machine tool 10 can be opened for feeding and closed for processing, improving the safety performance during the processing. And the processing machine tool 10 is provided with a numerical control operation controller 14 on the side of the machine tool processing side door 13 close to the driving handle. Through the numerical control operation controller 14, the processing of internal precision parts is controlled and operated to adjust the processing state. On the side of the processing machine tool 10 far from the machine tool processing side door 13, a servo motor 15 is fixedly installed, and a driving lead screw 16 is fixedly installed on the output end of the servo motor 15. On both sides of the driving lead screw 16 of the processing machine tool 10, side guide rails 17 are fixedly installed. A processing tool magazine seat 11 slides on the side guide rails 17 and is threadedly penetrated and connected to the driving lead screw 16. On the top of the machine tool base 22, a triangular fixing frame 23 is fixedly installed, and a base guide rail 21 is fixedly installed on the top of the triangular fixing frame 23. The bottom of the processing table 12 is connected to the top of the base guide rail 21 through a base slider 27, and the bottom of the processing table 12 is movably penetrated and connected to a stepping lead screw 20 through a ball nut. The machine tool base 22 is provided with a discharge hole 24 for discharging processing waste chips. At one end of the machine tool base 22 close to the driving lead screw 16, a stepping motor 25 is fixedly installed, and the stepping lead screw 20 is fixedly installed on the output end of the stepping motor 25.

[0024] Refer to Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 , the servo motor 15 drives the processing tool magazine seat 11 on the driving lead screw 16 to perform stable lifting movement under the action of the side guide rails 17, driving the processing tool magazine seat 11 to move up and down above the processing table 12, so that the cutting tools under the processing tool magazine seat 11 can meet the processing of different precision parts on the top of the processing table 12. During the processing, the position of the precision parts is horizontally adjusted through the processing table 12, so that the precision parts on the top of the processing table 12 are adjusted to the position of the cutting tools of the processing tool magazine seat 11. The output end of the stepping motor 25 drives the stepping lead screw 20 to rotate, and the processing table 12 on the stepping lead screw 20 realizes stable feed processing under the limiting action of the base guide rail 21, so that the precision parts are fed longitudinally towards the cutting tools under the processing tool magazine seat 11.

[0025] Refer to Figure 5 , Figure 6 , Figure 8 , Figure 9 and Figure 10, at one end of the machine tool base 22 away from the driving lead screw 16, there is a blast cleaning assembly for cleaning the debris on the outer periphery of the stepping lead screw 20. The blast seat 41 provided by the blast cleaning assembly always blows and cleans the debris adhered to the outer periphery of the stepping lead screw 20. And the rotating column 34 provided by the blast cleaning assembly moves synchronously with the stepping lead screw 20. The machining table 12 is fixedly installed with a cleaning frame 50 at the top position of the base guide rail 21. The blast cleaning assembly further includes a first gear 31 and a second gear 32. The machine tool base 22 is fixedly installed with a rotating cover 30 at one end away from the driving lead screw 16. The top of the stepping lead screw 20 penetrates and extends into the rotating cover 30. And the top end of the stepping lead screw 20 is fixedly installed with a first gear 31 inside the rotating cover 30. The machine tool base 22 is movably connected with a fixed rotating shaft 33 at one end close to the rotating cover 30. One end of the fixed rotating shaft 33 penetrates and extends into the rotating cover 30 and is fixedly installed with a second gear 32. The second gear 32 is movably meshed with the first gear 31. The rotating column 34 is fixedly installed at the other end of the fixed rotating shaft 33. And the rotating column 34 moves inside the machine tool base 22.

[0026] Refer to Figure 5 , Figure 6 , Figure 9 and Figure 10 During the rotation of the stepping lead screw 20, it drives the first gear 31 inside the rotating cover 30 to rotate. The first gear 31 meshes and drives the second gear 32 inside the rotating cover 30 to rotate synchronously. The second gear 32 drives the fixed rotating shaft 33 inside the rotating cover 30 to rotate. During the rotation of the fixed rotating shaft 33, it drives the rotating column 34 to rotate synchronously.

[0027] Refer to Figure 5 , Figure 6 , Figure 8 , Figure 9 and Figure 10, a waveform limit groove 35 is provided on the outer periphery of the rotating column 34. A limit base 37 is fixedly installed on one side of the bottom of the rotating column 34 on the machine tool base 22. T-shaped sliding grooves 38 are provided on the top of the limit base 37. T-shaped sliders 39 are slidably connected in the T-shaped sliding grooves 38. A movable rod 43 is fixedly installed on the top of the T-shaped slider 39. The cooperation of the T-shaped sliding groove 38 and the T-shaped slider 39 enables the movable rod 43 to perform a stable horizontal reciprocating motion. An arc-shaped limit rod 36 that matches the size of the waveform limit groove 35 is fixedly installed at one end of the movable rod 43, and the arc-shaped limit rod 36 is movably located in the waveform limit groove 35. The arc-shaped limit rods 36 are staggered on both sides of the rotating column 34, so that one cleaning cylinder 40 sucks air while the other cleaning cylinder 40 blows air, which can ensure that the air blowing nozzles 42 on the air blowing seat 41 can always clean the debris on the outer periphery of the feed screw 20. The other end of the movable rod 43 is fixedly installed with a connecting plate 44 on the side away from the rotating column 34. A cleaning cylinder 40 is fixedly installed at one end of the machine tool base 22 away from the fixed rotating shaft 33. A cleaning piston plate 46 is movably arranged inside the cleaning cylinder 40. A cleaning piston rod 45 is fixedly installed on the cleaning piston plate 46, and the cleaning piston rod 45 is fixedly installed on the top of the connecting plate 44. An air inlet pipe 47 and an air outlet pipe 48 are arranged on the side of the cleaning cylinder 40 away from the limit base 37, and the air outlet pipe 48 is connected to the air blowing seat 41. Check valves are arranged on both the air inlet pipe 47 and the air outlet pipe 48, so that when negative pressure is generated in the cleaning cylinder 40 for air intake, it can only be inflated through the air inlet pipe 47. Similarly, when positive pressure is generated in the cleaning cylinder 40 for air blowing, it can only be exhausted through the air outlet pipe 48. The air blowing seat 41 is fixedly installed with a plurality of air blowing nozzles 42 by bolts, and the air blowing seat 41 is located at the center of the top of the feed screw 20.

[0028] Refer to Figure 5 , Figure 6 , Figure 8 , Figure 9 and Figure 10, during the rotation of the rotating column 34, the waveform limit groove 35 drives the arc-shaped limit rod 36 to move horizontally back and forth. The arc-shaped limit rod 36 drives the movable rod 43 on the limit base 37 to move stably under the action of the T-shaped sliding groove 38 and the T-shaped slider 39. The arc-shaped limit rod 36 drives the cleaning piston rod 45 outside the rotating column 34 to reciprocate through the connecting plate 44. The cleaning piston rod 45 drives the cleaning piston plate 46 in the cleaning cylinder 40 to reciprocate synchronously. When the cleaning piston plate 46 in one side of the cleaning cylinder 40 generates negative pressure inside the cleaning cylinder 40, the cleaning cylinder 40 inhales air from the air inlet pipe 47. At this time, the cleaning piston plate 46 in the other side of the cleaning cylinder 40 generates positive pressure inside the cleaning cylinder 40, and the cleaning cylinder 40 discharges the internal air through the air blowing nozzle 42 on the air blowing seat 41 from the air outlet pipe 48, and uses the air blowing nozzle 42 to clean the debris on the outer circumference of the rotating feed screw 20. The processing table 12 moves on the smooth outer circumference of the feed screw 20, and the generated debris will not damage the feed screw 20.

[0029] Refer to Figure 4 , Figure 5 , Figure 6 , Figure 11 , Figure 12 and Figure 13 , a twisting cleaning assembly for cleaning the debris on the base guide rail 21 is arranged inside the cleaning frame 50. The twisting cleaning assembly is provided with a cleaning plate 60 for sweeping back and forth on the surface of the base guide rail 21. The twisting cleaning assembly further includes a worm gear 54 for driving the cleaning plate 60 to move and a rotating gear 51 movably arranged at the bottom of the cleaning frame 50. The triangular fixing frame 23 is fixedly installed with a base rack plate 26 on one side away from the feed screw 20. The inner bottom of the cleaning frame 50 is movably connected with a support rotating shaft 52. The rotating gear 51 is fixedly installed at the bottom end of the support rotating shaft 52, and the rotating gear 51 is movably meshed with the base rack plate 26. The inner part of the cleaning frame 50 is movably connected with a rotating shaft 53 on one side close to the processing table 12. The worm gear 54 is fixedly installed on the rotating shaft 53. The top of the support rotating shaft 52 penetrates and extends into the cleaning frame 50 and is fixedly installed with a worm 55 movably meshed with the worm gear 54.

[0030] Refer to Figure 4 , Figure 5 , Figure 11 , Figure 12 and Figure 13 , when the processing table 12 reciprocates and feeds on the base guide rail 21, the rotating gear 51 connected to the support rotating shaft 52 on the cleaning frame 50 is movably meshed with the base rack plate 26 on the triangular fixing frame 23. The rotating gear 51 will drive the worm 55 in the cleaning frame 50 to rotate synchronously through the support rotating shaft 52. When the worm 55 rotates, it will drive the worm gear 54 on the rotating shaft 53 to rotate synchronously.

[0031] Refer toFigure 4 , Figure 5 , Figure 11 , Figure 12 and Figure 13 , at the top of the rotating shaft 53, an arc-shaped rotating plate 56 is fixedly installed. The arc-shaped rotating plate 56 is fixedly installed with a rotating shaft 57. At the center of the end of the cleaning frame 50 far from the processing table 12, a base rotating shaft 61 is movably connected. The base rotating shaft 61 is fixedly installed with a U-shaped connecting plate 63. At one end of the U-shaped connecting plate 63 located inside the cleaning frame 50, an arc-shaped flipping frame 62 is fixedly installed. At the end of the rotating shaft 57 far from the arc-shaped rotating plate 56, a flipping block 58 that matches the size of the arc-shaped flipping frame 62 is movably connected, and the flipping block 58 moves inside the arc-shaped flipping frame 62. At the end of the U-shaped connecting plate 63 far from the processing table 12, a cleaning plate 60 is fixedly installed. The cleaning plate 60 movably penetrates outside the cleaning frame 50. The cleaning frame 50 is provided with a cleaning hole 59 that matches the size of the cleaning plate 60, and the cleaning plate 60 moves in the cleaning hole 59. At the bottom of the outside of the cleaning frame 50, the cleaning plate 60 is fixedly installed with a cleaning brush 64, and the cleaning brush 64 moves on the top of the base guide rail 21. The cleaning brush 64 sweeps the debris on the base guide rail 21 into the discharge hole 24 for discharge.

[0032] Refer to Figure 4 , Figure 5 , Figure 11 , Figure 12 and Figure 13 , when the worm 55 rotates, it will synchronously drive the worm wheel 54 on the rotating shaft 53 to rotate. The worm wheel 54 will drive the arc-shaped rotating plate 56 at the top through the rotating shaft 53 to rotate. The arc-shaped rotating plate 56 drives the rotating shaft 57 to move synchronously. The flipping block 58 on the rotating shaft 57 moves inside the arc-shaped flipping frame 62. The movement of the flipping block 58 will drive the arc-shaped flipping frame 62 to perform a reciprocating flipping movement. The arc-shaped flipping frame 62 drives the U-shaped connecting plate 63 on the base rotating shaft 61 to swing synchronously. The U-shaped connecting plate 63 will drive the cleaning plate 60 to move synchronously. The cleaning brush 64 under the cleaning plate 60 sweeps and cleans the debris on the base guide rail 21, and clears the debris on the base guide rail 21 to prevent the debris from scratching the base guide rail 21. Specifically, when the arc-shaped rotating plate 56 drives the flipping block 58 on the rotating shaft 57 to be at the upper and lower positions, at this time, the flipping block 58 will be at both ends of the arc-shaped flipping frame 62 in the vertical state, and the arc-shaped flipping frame 62 is located at the center position of the worm wheel 54. As the arc-shaped rotating plate 56 drives the flipping block 58 on the rotating shaft to rotate to the horizontal state, at this time, the flipping block 58 will be at the middle position of the arc-shaped flipping frame 62 in the vertical state, and the arc-shaped flipping frame 62 moves to the side position of the worm wheel 54, driving the cleaning plate 60 to swing and misalign. In this way, the cleaning plate 60 reciprocates and swings back and forth on both sides of the top of the base guide rail 21.

[0033] Working principle: Place precision parts on the processing table 12. Drive the processing tool magazine seat 11 on the driving lead screw 16 by the servo motor 15 to perform stable lifting motion under the action of the side guide rail 17, and drive the processing tool magazine seat 11 to move up and down above the processing table 12, so that the tools under the processing tool magazine seat 11 can meet the processing of different precision parts on the top of the processing table 12. During the processing, horizontally adjust the position of the precision parts by the processing table 12, so that the precision parts on the top of the processing table 12 are adjusted to the tool position of the processing tool magazine seat 11. Drive the stepping lead screw 20 to rotate by the output end of the stepping motor 25. The processing table 12 on the stepping lead screw 20 realizes stable feed processing under the limiting action of the base guide rail 21, so that the precision parts are fed towards the tools under the processing tool magazine seat 11 in the longitudinal plane; When the processing table 12 moves back and forth stably on the base guide rail 21, the first gear 31 in the rotating cover 30 is driven to rotate during the rotation of the stepping lead screw 20. The first gear 31 meshes to drive the second gear 32 in the rotating cover 30 to perform synchronous rotation motion. The second gear 32 drives the fixed rotating shaft 33 in the rotating cover 30 to rotate. The fixed rotating shaft 33 drives the rotating column 34 to rotate synchronously during the rotation process. During the rotation of the rotating column 34, the arc-shaped limiting rod 36 is driven to move horizontally back and forth through the waveform limiting groove 35. The arc-shaped limiting rod 36 drives the movable rod 43 on the limiting base 37 to move stably under the action of the T-shaped chute 38 and the T-shaped slider 39. The arc-shaped limiting rod 36 drives the cleaning piston rod 45 outside the rotating column 34 to reciprocate through the connecting plate 44. The cleaning piston rod 45 drives the cleaning piston plate 46 in the cleaning cylinder 40 to reciprocate synchronously. When the cleaning piston plate 46 in one cleaning cylinder 40 generates negative pressure in the cleaning cylinder 40, this cleaning cylinder 40 inhales air from the air inlet pipe 47. At this time, the cleaning piston plate 46 in the other cleaning cylinder 40 generates positive pressure in the cleaning cylinder 40, and this cleaning cylinder 40 discharges the internal air through the air outlet pipe 48 through the air blowing nozzle 42 on the air blowing seat 41. Use the air blowing nozzle 42 to clean the debris on the outer circumference of the rotating stepping lead screw 20. The processing table 12 moves on the smooth outer circumference of the stepping lead screw 20, and the generated debris will not damage the stepping lead screw 20, improving the stable performance of the feed of the processing table 12; When the processing table 12 feeds back and forth on the base guide rail 21, the rotating gear 51 connected to the support rotating shaft 52 on the cleaning frame 50 is movably engaged with the base rack plate 26 on the triangular fixing frame 23. The rotating gear 51 will drive the worm 55 in the cleaning frame 50 to rotate synchronously through the support rotating shaft 52. When the worm 55 rotates, it will drive the worm gear 54 on the rotating shaft 53 to rotate synchronously. The worm gear 54 will drive the arc-shaped rotating plate 56 at the top to rotate through the rotating shaft 53. The arc-shaped rotating plate 56 drives the rotating shaft 57 to move synchronously. The turning block 58 on the rotating shaft 57 moves in the arc-shaped turning frame 62. The movement of the turning block 58 will drive the arc-shaped turning frame 62 to perform reciprocating turning movements. The arc-shaped turning frame 62 drives the U-shaped connecting plate 63 on the base rotating shaft 61 to swing synchronously. The U-shaped connecting plate 63 will drive the cleaning plate 60 to move synchronously. The cleaning brush 64 under the cleaning plate 60 sweeps and cleans the debris on the base guide rail 21, removing the debris on the base guide rail 21 to prevent the debris from scratching the base guide rail 21, which in turn affects the stable effect of the feeding of the processing table 12, resulting in instability during the feeding of the processing table 12 and affecting the precision of the processing of precision parts, and reducing the quality of the processing of precision parts.

[0034] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited thereto. Within the scope of knowledge possessed by those skilled in the art to which the present invention pertains, various changes can be made without departing from the gist of the present invention.

Claims

1. A feeding device for precision part processing, comprising a processing machine tool, a processing tool magazine seat and a processing table, characterized in that, Inside the processing machine tool, there is a driving lead screw for driving the lifting movement of the processing tool magazine seat. At the inner bottom of the processing machine tool, a stepping lead screw for driving the movement of the processing table is provided through the machine tool base. Inside the processing machine tool, a base guide rail for limiting and guiding the processing table is provided on the side of the stepping lead screw. At one end of the machine tool base away from the driving lead screw, there is a blowing and cleaning assembly for cleaning the debris on the outer periphery of the stepping lead screw. The blowing seat provided by the blowing and cleaning assembly always blows and cleans the debris adhered to the outer periphery of the stepping lead screw. Moreover, the rotating column provided by the blowing and cleaning assembly moves synchronously with the stepping lead screw. At the top position of the base guide rail, a cleaning frame is fixedly installed on the processing table. Inside the cleaning frame, there is a twisting cleaning assembly for cleaning the debris on the base guide rail. The twisting cleaning assembly is provided with a cleaning plate for sweeping back and forth on the surface of the base guide rail. The twisting cleaning assembly also includes a worm gear for driving the cleaning plate to move.

2. The feeding device for precision part processing according to claim 1, wherein, The processing machine tool is provided with a machine tool processing side door with a driving handle. And on one side of the machine tool processing side door close to the driving handle, a numerical control operation controller is provided. On the side of the processing machine tool internal far from the machine tool processing side door, a servo motor is fixedly installed. And the driving lead screw is fixedly installed on the output end of the servo motor. On both sides of the driving lead screw of the processing machine tool, side guide rails are fixedly installed. The processing tool magazine seat slides on the side guide rails and is threadedly connected through the driving lead screw.

3. The feeding device for precision part machining according to claim 1, characterized in that, At the top of the machine tool base, a triangular fixing frame is fixedly installed. The base guide rail is fixedly installed on the top of the triangular fixing frame. The bottom of the processing table is connected to the top of the base guide rail through a base slider. And the bottom of the processing table is movably connected through a ball nut to the stepping lead screw. The machine tool base is provided with discharge holes for discharging processing waste chips. At one end of the machine tool base close to the driving lead screw, a stepping motor is fixedly installed. And the stepping lead screw is fixedly installed on the output end of the stepping motor.

4. A feeding device for precision part machining according to claim 1, characterized in that, The blowing and cleaning assembly also includes a first gear and a second gear. At one end of the machine tool base away from the driving lead screw, a rotating cover is fixedly installed. The top of the stepping lead screw extends through to the inside of the rotating cover. And at the top end of the stepping lead screw located inside the rotating cover, a first gear is fixedly installed. At one end of the machine tool base close to the rotating cover, a fixed rotating shaft is movably connected. One end of the fixed rotating shaft extends through to the inside of the rotating cover and a second gear is fixedly installed. The second gear is movably meshed with the first gear. The rotating column is fixedly installed at the other end of the fixed rotating shaft and the rotating column moves inside the machine tool base.

5. The feeding device for precision part machining according to claim 4, wherein Wave-shaped limiting grooves are provided on the outer periphery of the rotating column. At one side of the bottom of the rotating column of the machine tool base, a limiting base is fixedly installed. T-shaped sliding grooves are provided on the top of the limiting base. T-shaped sliders are slidably connected in the T-shaped sliding grooves. A movable rod is fixedly installed on the top of the T-shaped slider. One end of the movable rod is fixedly installed with an arc-shaped limiting rod that matches the size of the wave-shaped limiting groove. And the arc-shaped limiting rod moves in the wave-shaped limiting groove. The other end of the movable rod is fixedly installed with a connecting plate on the side away from the rotating column.

6. The feeding device for precision part machining according to claim 5, characterized in that, At one end of the limit base away from the fixed rotating shaft, a cleaning cylinder is fixedly installed on the machine tool base. A cleaning piston plate is movably arranged inside the cleaning cylinder. The cleaning piston plate is fixedly installed with a cleaning piston rod, and the cleaning piston rod is fixedly installed on the top of the connecting plate. An air inlet pipe and an air outlet pipe are arranged on one side of the cleaning cylinder away from the limit base, and the air outlet pipe is connected to the air blowing seat. The air blowing seat is fixedly installed with a plurality of air blowing nozzles through bolts, and the air blowing seat is located at the center of the top of the stepping screw rod.

7. The feeding device for precision part machining according to claim 3, characterized in that, The twisting cleaning assembly further includes a rotating gear movably arranged at the bottom of the cleaning frame. A base rack plate is fixedly installed on one side of the triangular fixing frame away from the stepping screw rod. The inner bottom of the cleaning frame is movably connected with a support rotating shaft. The rotating gear is fixedly installed at the bottom end of the support rotating shaft, and the rotating gear is movably meshed with the base rack plate. A rotating shaft is movably connected to one side of the cleaning frame close to the processing table. A worm gear is fixedly installed on the rotating shaft. The top of the support rotating shaft penetrates and extends into the cleaning frame and is fixedly installed with a worm that is movably meshed with the worm gear.

8. The feeding device for precision part machining according to claim 7, characterized in that, The top end of the rotating shaft is fixedly installed with an arc-shaped rotating plate. The arc-shaped rotating plate is fixedly installed with a rotating shaft. A base rotating shaft is movably connected to the center of one end of the cleaning frame away from the processing table. The base rotating shaft is fixedly installed with a U-shaped connecting plate. An arc-shaped turning frame is fixedly installed at one end of the U-shaped connecting plate located inside the cleaning frame. The rotating shaft is movably connected to a turning block that matches the size of the arc-shaped turning frame at one end away from the arc-shaped rotating plate, and the turning block is movably arranged inside the arc-shaped turning frame.

9. The feeding device for precision part machining according to claim 8, characterized in that, A cleaning plate is fixedly installed at one end of the U-shaped connecting plate away from the processing table. The cleaning plate movably penetrates outside the cleaning frame. The cleaning frame is provided with a cleaning hole that matches the size of the cleaning plate, and the cleaning plate is movably arranged in the cleaning hole. A cleaning brush is fixedly installed at the outer bottom of the cleaning frame, and the cleaning brush is movably arranged at the top of the base guide rail.

Images