Ultra-precision machining numerical control turning device

Abstract

The invention relates to the technical field of numerical control lathes, and discloses an ultra-precision machining numerical control turning device which comprises a turning table, a moving bed in transmission connection with the top of the turning table, a coordinate table in sliding connection with the top of the moving bed, a moving table in sliding connection with the top of the coordinate table, a fixed table fixedly installed on one side of the moving table, and a connecting disc fixedly installed on the moving table. The top of the connecting disc is fixedly connected with a first spring, the top of the first spring is fixedly connected with a first sliding groove plate, a fixing base is fixedly installed on the portion, close to the connecting disc, of the movable table, the fixing base is fixedly connected with a pressing disc, the bottom of the pressing disc and the top of the first sliding groove plate are both provided with opposite teeth, and the pressing disc is meshed with the first sliding groove plate through the opposite teeth. According to the ultra-precision machining numerical control turning device, the ends of waste chips can be attached to the rotating path of the chip twisting hook at first, so that in the rotating process of the chip twisting hook, the waste chips are wound on the chip twisting hook, machining gaps in the surface of a cutter are increased, the possibility that the chips adhere to the surface of the cutter is reduced, and the precision of workpiece machining of the cutter is improved.

Description

Technical Field

[0001] This invention relates to the field of CNC lathe technology, specifically to an ultra-precision CNC turning device. Background Technology

[0002] Precision machining is a process that uses machinery to change the shape, size, or properties of a workpiece. CNC lathe machining is a part of precision machining; however, CNC turning involves using a cutting tool on a CNC lathe to machine a rotating workpiece. A CNC lathe is equipped with a pre-programmed machining program and automatically performs relatively precise machining on the workpiece. The turning device is generally located on the lathe, and the workpiece's internal and external cylindrical surfaces, end faces, threads, and shaped surfaces are machined.

[0003] Currently, CNC turning equipment for precision machining can perform normal precision turning operations on workpieces. However, due to the lack of chip breaking capability, during the turning process, the turning chips become entangled on the surface of the tool or workpiece, which can easily scratch the machined surface. The accumulation of chips on the tool also reduces the accuracy of the tool in machining the workpiece. Some existing technologies have solved the above problems by covering the tool with a chip baffle. However, the chip baffle is always in a fixed position and is relatively thick, which makes it difficult for the tool to continuously cut the workpiece. The chip depth of the workpiece cannot be changed step by step, increasing the number of machining steps and requiring the machine to be stopped repeatedly to adjust the position of the tool, thus reducing machining efficiency. Summary of the Invention

[0004] The purpose of this invention is to provide an ultra-precision CNC turning device to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: an ultra-precision CNC turning device, comprising a lathe, a moving bed connected to the top of the lathe via transmission, a coordinate stage slidably connected to the top of the moving bed, a movable stage slidably connected to the top of the coordinate stage, a fixed platform fixedly installed on one side of the movable stage, a connecting plate fixedly installed on the movable stage, a first spring fixedly connected to the top of the connecting plate, a first slide plate fixedly connected to the top of the first spring, a fixed seat fixedly installed on the movable stage near the connecting plate, a pressure plate fixedly connected to the fixed seat, teeth provided at the bottom of the pressure plate and the top of the first slide plate, the pressure plate meshing with the first slide plate through the teeth; a first slider slidably connected to the first slide plate, a swivel extension rod slidably connected to the first slider, a motor fixedly installed inside one end of the swivel extension rod, a first helical gear sleeved on the motor output shaft, a chip hook rotatably connected to one end of the swivel extension rod, one end of the chip hook extending into the interior of the end of the swivel extension rod, a second helical gear fixedly connected to one end of the chip hook, the first helical gear and the second helical gear meshing together; the chip hook is located directly above the tool on the fixed stage.

[0006] Preferably, a mounting plate is fixedly installed on the outside of the shovel extension rod, and a spiral cutter is rotatably connected to the side of the mounting plate near the shaving hook. A belt is sleeved between the shaving hook and the spiral cutter.

[0007] Preferably, a second slider is fixedly connected to one side of the first slider, and a suction tube connected to the negative pressure machine via a pipe is fixedly connected to the second slider. One end of the suction tube is fixedly connected to a dispensing hopper, and one end of the dispensing hopper has an opening facing the bottom of the spiral cutter.

[0008] Preferably, a second air pipe is connected to the other side of the first slider. One end of the second air pipe has a bend, which is folded into the end of the extension rod of the punch. The other end of the second air pipe is connected to the air blower pipe.

[0009] Preferably, a second spring is fixedly connected between the second slider and the first slide plate, and a first cylinder is fixedly installed on one side of the first slide plate, with the output end of the first cylinder and the extension rod of the push rod fixed together.

[0010] Preferably, a second slide plate is fixedly installed on the top of the first slide plate, and a second cylinder is slidably connected to the second slide plate. The output end of the second cylinder is connected to the extension rod of the push rod.

[0011] Preferably, a poking rod is fixedly connected to the other end of the poking rod extension rod, a light emitter is fixedly installed at one end of the poking rod, a marking platform is fixedly installed on one side of the top of the platform, a reference cone is fixedly installed at one end of the marking platform, a control box is fixedly installed on one side of the outside of the platform, and a main shaft is fixedly installed on one side of the control box, with the axes of the reference cone and the main shaft coinciding.

[0012] Preferably, a fixed rod is fixedly installed on the mobile platform near the connecting plate, and a lifting rod is slidably connected to the fixed rod. A first air pipe is fixedly installed on the top of the lifting rod. One end of the first air pipe is connected to the air blower pipe, and the other end is fixedly installed with a nozzle. The nozzle is located directly above the shredder hook.

[0013] Preferably, the other end of the shaving hook is fixedly connected to a distribution tooth, which has multiple teeth spaced equally apart, and the multiple teeth are used to separate the iron filings coiled on the shaving hook.

[0014] Preferably, the material of the shaving hook is made of a non-slip material.

[0015] Compared with the prior art, the beneficial effects of the present invention are: 1. When the tool of the present invention processes the workpiece, the end of the waste chip first comes into contact with the rotation path of the chip auger, so that the waste chip is wrapped around the chip auger during the rotation of the chip auger, thereby improving the processing gap on the tool surface, reducing the possibility of chip sticking to the tool surface, and improving the accuracy of the tool in processing the workpiece. 2. During the contact process between the chip auger and the workpiece, the contact generates torque at one end of the first slide plate, thus achieving a lever effect. This causes the teeth at the top of the first slide plate and the teeth at the bottom of the pressure plate to separate and then re-engage. During this process, the first slide plate rotates, the first spring is compressed, and then returns to its original state after the two teeth re-engage. The pressure plate limits the recovery distance of the first spring, thereby allowing the chip auger and the first slide plate to expand the space at the top of the tool. This allows for controllable and continuous changes in the cutting depth, ensuring that the workpiece can be machined into different shapes and improving the future prospects of the machine tool. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a top view of the overall structure of the present invention; Figure 3 For the present invention Figure 2 Enlarged structural diagram at point A; Figure 4 This is a schematic diagram of the overall structure of the present invention from another perspective; Figure 5 This is a schematic diagram of the pressure plate and the first slide plate of the present invention; Figure 6 This is a schematic diagram of the first sliding groove plate, the extension rod of the shovel, and the shaving hook of the present invention; Figure 7 For the present invention Figure 6 Enlarged structural diagram at point B; Figure 8 This is a schematic diagram of the shaving hook structure of the present invention.

[0017] In the diagram: 1-Cartridge; 2-Moving bed; 3-Marking table; 4-Coordinate table; 401-Moving table; 5-Spindle; 6-Control box; 7-Reference cone; 8-Fixed table; 9-Fixed seat; 10-Connecting plate; 11-Pressure plate; 1101-Gear alignment; 12-First slide plate; 13-Second slide plate; 14-Light emitter; 15-Piercing rod; 16-First cylinder; 17-Second cylinder; 18-Fixed rod; 19-Lifting rod; 20-First air pipe; 21-First spring; 22-Piercing rod extension rod; 23-Second air pipe; 24-First slider; 25-Suction tube; 26-Second slider; 27-Second spring; 28-Distribution hopper; 29-Spiral cutter; 30-Scrap hook; 31-Motor; 32-Belt; 33-First helical gear; 34-Second helical gear; 35-Distribution gear. Detailed Implementation

[0018] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0019] Please see Figures 1-8 This invention provides a technical solution: an ultra-precision CNC turning device, comprising a lathe 1, a moving bed 2 connected to the top of the lathe 1 via a transmission, a coordinate table 4 slidably connected to the top of the moving bed 2, a movable table 401 slidably connected to the top of the coordinate table 4, a fixed table 8 fixedly installed on one side of the movable table 401, a connecting plate 10 fixedly installed on the movable table 401, a first spring 21 fixedly connected to the top of the connecting plate 10, a first sliding plate 12 fixedly connected to the top of the first spring 21, a fixed seat 9 fixedly installed on the movable table 401 near the connecting plate 10, a pressure plate 11 fixedly connected to the fixed seat 9, and the bottom of the pressure plate 11 and the first sliding plate... Each of the 12 is provided with teeth 1101. The pressure plate 11 meshes with the teeth 1101 at the top of one end of the first slide plate 12 through the teeth 1101, so that the pressure plate 11 and the first slide plate 12 are in a stable position, allowing the first slide plate 12 to rotate between the teeth 1101 and the pressure plate 11. After the equipment is installed, the tool is installed on the fixed table 8. Before the tool cuts, the tool needs to be set first to establish the coordinate system. Then, the position of the coordinate table 4 and the moving table 401 is controlled by the background to make the first slide plate 12 and the workpiece cross section parallel. That is, the first slide plate 12 and the end cross section of the cylindrical workpiece match. A first slider 24 is slidably connected to the first slide plate 12, and a push rod extension rod 22 is slidably connected to the first slider 24. A motor 31 is fixedly installed inside one end of the push rod extension rod 22, and a first helical gear 33 is sleeved on the output shaft of the motor 31. A chip auger 30 is rotatably connected to one end of the push rod extension rod 22, and one end of the chip auger 30 extends into the interior of the end of the push rod extension rod 22. A second helical gear 34 is fixedly connected to one end of the chip auger 30, and the first helical gear 33 and the second helical gear 34 mesh together. The chip auger 30 is located directly above the cutting tool on the fixed table 8. When the cutting tool is machining the workpiece, it moves towards the surface of the workpiece through the moving bed 2, so that the cutting tool generates chips on the surface of the workpiece during the machining process, and the chip auger 30 is directly above the cutting tool. In the background, the drive motor 31 rotates, causing the motor 31 to drive the first helical gear 33 to rotate. The rotation of the first helical gear 33, under the action of meshing with the second helical gear 34, causes the second helical gear 34 to rotate, which in turn causes the chip hook 30 to rotate. When the tool is cutting the workpiece material, if the tool itself is intact, the cutting process will be relatively smooth, and the waste chips will continue to connect together in a spiral shape and stick to the tool. However, in this case, the cutting fluid is difficult to cool the tool. Therefore, when the tool is processing the workpiece, the end of the waste chips should first come into contact with the rotation path of the chip hook 30, so that the waste chips are wrapped around the chip hook 30 during the rotation of the chip hook 30, improving the machining gap on the tool surface and reducing the possibility of chips sticking to the tool surface. During machining, if the cutting depth of the tool is too large, the chip reamer 30 will contact the workpiece to some extent. Therefore, during the contact between the chip reamer 30 and the workpiece, the contact causes a torque at one end of the first slide plate 12, thereby achieving a lever effect. This causes the teeth 1101 at the top of the first slide plate 12 and the teeth 1101 at the bottom of the pressure plate 11 to separate from each other and then re-engage. During this process, the first slide plate 12 rotates, the first spring 21 is compressed, and then returns to its original state after the two teeth 1101 re-engage. The pressure plate 11 limits the recovery distance of the first spring 21, thereby allowing the chip reamer 30 and the first slide plate 12 to expand the space at the top of the tool, allowing the cutting depth of the tool to change controllably and continuously. This ensures that the workpiece shape can be processed to different types when the machine tool is machining, thus improving the future use prospects of the machine tool.

[0020] Furthermore, an installation plate is fixedly installed on the outer side of the extension rod 22. A spiral cutter 29 is rotatably connected to the side of the installation plate near the chip hook 30. A belt 32 is sleeved between the chip hook 30 and the spiral cutter 29. When the motor 31 rotates, the chip hook 30 rotates, which in turn drives the spiral cutter 29 to rotate via the belt 32. As the processing time increases, the thickness of the chips wrapped around the chip hook 30 will inevitably increase. Therefore, it is necessary to clean them quickly to avoid obstructing the cutter again. When the chips on the chip hook 30 reach a certain thickness, they come into contact with the spiral cutter 29. The spiral cutter 29 is spiral-shaped, and during rotation, the position of the blade is not uniform, achieving a slanted cutting effect. This facilitates the quick cleaning of the chips wrapped around the chip hook 30, preventing excessive chips from causing inconvenience to the processing.

[0021] Furthermore, a second slider 26 is fixedly connected to one side of the first slider 24. A suction pipe 25, which is connected to a negative pressure machine via a pipe, is fixedly attached to the second slider 26. One end of the suction pipe 25 is fixedly connected to a distribution hopper 28, which has an opening facing the bottom of the spiral cutter 29. A second air pipe 23 is connected to the other side of the first slider 24. One end of the second air pipe 23 has a bend that is folded into the end of the extension rod 22. The other end of the second air pipe 23 is connected to an air blower pipe. Condensed air is introduced into the second air pipe 23. The end of the second air pipe 23 is close to the cutter, which can prioritize cooling the surface of the cutter during processing. It also has the effect of cleaning small-particle debris from the cutter surface. The debris on the shaving hook 30, after being cleaned by the spiral cutter 29, falls onto the distribution hopper 28. The distribution hopper 28 is connected to the suction pipe 25, so that the debris in the distribution hopper 28 is carried to the outside of the machine tool through the suction pipe 25, improving the cleanliness of the machine tool.

[0022] Furthermore, a second spring 27 is fixedly connected between the second slider 26 and the first slide plate 12. A first cylinder 16 is fixedly installed on one side of the first slide plate 12. The output end of the first cylinder 16 is fixed together with the extension rod 22. If the chip hook 30 does not cover the upper position of the tool, the position of the extension rod 22 can be calibrated by manually controlling the output end of the first cylinder 16 in the background, so that the chip hook 30 covers the upper position of the tool.

[0023] Furthermore, a second slide plate 13 is fixedly installed on the top of the first slide plate 12, and a second cylinder 17 is slidably connected to the second slide plate 13. The output end of the second cylinder 17 is connected to the extension rod 22. During processing, if the chip hook 30 is not long enough to cover the position above the tool, it can be extended by the second cylinder 17 to control the distance between the extension rod 22 and the tool.

[0024] Furthermore, the other end of the extension rod 22 is fixedly connected to the rod 15, and a light emitter 14 is fixedly installed at one end of the rod 15. A marking platform 3 is fixedly installed on one side of the top of the platform 1, and a reference cone 7 is fixedly installed at one end of the marking platform 3. A control box 6 is fixedly installed on the outside of the platform 1, and a main shaft 5 is fixedly installed on one side of the control box 6. The axes of the reference cone 7 and the main shaft 5 coincide. The light emitter 14 uses a conspicuous red light. After the coordinate system of the coordinate stage 4 and the moving stage 401 is determined, the first cylinder 16 is activated in the background to extend and retract, which can align the head end of the light emitter 14 with the reference cone 7. This allows the red light to be projected onto the tip area of ​​the reference cone 7, so that the extension rod 22 of the shovel is positioned directly above the tool of the fixed stage 8, thereby effectively increasing the range of debris pulled by the chip hook 30.

[0025] Furthermore, a fixed rod 18 is fixedly installed on the moving table 401 near the connecting plate 10. A lifting rod 19 is slidably connected to the fixed rod 18. A first air pipe 20 is fixedly installed on the top of the lifting rod 19. One end of the first air pipe 20 is connected to the air blower pipe, and the other end is fixedly installed with a nozzle. The nozzle is located directly above the chip hook 30. If the cutting angle is not properly controlled and changes when the tool is cutting the workpiece, the chips generated when cutting the workpiece surface may not be connected together. At this time, a large number of broken chips are generated, covering the surface of the tool and the workpiece. The first air pipe 20 can be driven by the background to work, spraying a gas-liquid mixture from the nozzle towards the workpiece and the tool, reducing the possibility of chips sticking to the tool.

[0026] Furthermore, the other end of the chip shaving hook 30 is fixedly connected to a distribution tooth 35. The distribution tooth 35 has multiple teeth that are equally spaced, and the multiple teeth are used to separate the iron chips coiled on the chip shaving hook 30. The chip shaving hook 30 is made of a non-slip material to prevent the iron chips coiled on the chip shaving hook 30 from being too thick in the same position, which would reduce the cooling area of ​​the upper part of the tool.

[0027] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0028] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A CNC turning device for ultra-precision machining, comprising a lathe (1), characterized in that: The top of the platform (1) is connected to a moving bed (2), the top of the moving bed (2) is slidably connected to a coordinate platform (4), the top of the coordinate platform (4) is slidably connected to a moving table (401), a fixed table (8) is fixedly installed on one side of the moving table (401), a connecting plate (10) is fixedly installed on the moving table (401), a first spring (21) is fixedly connected to the top of the connecting plate (10), a first slide plate (12) is fixedly connected to the top of the first spring (21), a fixed seat (9) is fixedly installed on the moving table (401) near the connecting plate (10), a pressure plate (11) is fixedly connected to the fixed seat (9), a toothed plate (1101) is provided at the bottom of the pressure plate (11) and the top of the first slide plate (12), and the pressure plate (11) meshes with the first slide plate (12) through the toothed plate (1101); A first slider (24) is slidably connected to the first slide plate (12), and a poking rod extension rod (22) is slidably connected to the first slider (24). A motor (31) is fixedly installed inside one end of the poking rod extension rod (22). A first helical gear (33) is sleeved on the output shaft of the motor (31). A chip hook (30) is rotatably connected to one end of the poking rod extension rod (22). One end of the chip hook (30) extends into the interior of the end of the poking rod extension rod (22). A second helical gear (34) is fixedly connected to one end of the chip hook (30). The first helical gear (33) and the second helical gear (34) mesh together. The chip hook (30) is located directly above the cutter on the fixed platform (8).

2. The ultra-precision CNC turning device according to claim 1, characterized in that: An installation plate is fixedly installed on the outside of the extension rod (22). A spiral cutter (29) is rotatably connected to the side of the installation plate near the chip hook (30). A belt (32) is sleeved between the chip hook (30) and the spiral cutter (29).

3. The ultra-precision CNC turning device according to claim 2, characterized in that: A second slider (26) is fixedly connected to one side of the first slider (24). A suction tube (25) connected to the negative pressure machine via a pipe is fixed on the second slider (26). A dispensing hopper (28) is fixedly connected to one end of the suction tube (25). One end of the dispensing hopper (28) has an opening facing the bottom of the spiral cutter (29).

4. The ultra-precision CNC turning device according to claim 3, characterized in that: The first slider (24) is connected to a second air pipe (23) on the other side. One end of the second air pipe (23) has a bend, which is folded into the end of the extension rod (22). The other end of the second air pipe (23) is connected to the air blower pipe.

5. The ultra-precision CNC turning device according to claim 4, characterized in that: A second spring (27) is fixedly connected between the second slider (26) and the first slide plate (12). A first cylinder (16) is fixedly installed on one side of the first slide plate (12). The output end of the first cylinder (16) and the extension rod (22) are fixed together.

6. The ultra-precision CNC turning device according to claim 5, characterized in that: A second slide plate (13) is fixedly installed on the top of the first slide plate (12). A second cylinder (17) is slidably connected on the second slide plate (13). The output end of the second cylinder (17) is connected to the extension rod (22).

7. The ultra-precision CNC turning device according to claim 6, characterized in that: The other end of the extension rod (22) of the poking rod is fixedly connected to the poking rod (15). A light emitter (14) is fixedly installed at one end of the poking rod (15). A marking platform (3) is fixedly installed on one side of the top of the platform (1). A reference cone (7) is fixedly installed at one end of the marking platform (3). A control box (6) is fixedly installed on one side of the outside of the platform (1). A main shaft (5) is fixedly installed on one side of the control box (6). The axes of the reference cone (7) and the main shaft (5) coincide.

8. The ultra-precision CNC turning device according to claim 7, characterized in that: The mobile platform (401) has a fixed rod (18) fixedly installed near the connecting plate (10). A lifting rod (19) is slidably connected to the fixed rod (18). A first air pipe (20) is fixedly installed on the top of the lifting rod (19). One end of the first air pipe (20) is connected to the air blower pipe, and the other end is fixedly installed with a nozzle. The nozzle is located directly above the shaving hook (30).

9. The ultra-precision CNC turning device according to claim 8, characterized in that: The other end of the chip hook (30) is fixedly connected to a distribution tooth (35), which has multiple teeth spaced equally apart. These teeth are used to separate the iron filings coiled on the chip hook (30).

10. The ultra-precision CNC turning device according to claim 9, characterized in that: The material of the shaving hook (30) is made of non-slip material.

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