Workpiece surface roughness improving device of stepless numerical control lathe

Abstract

The utility model discloses a workpiece surface roughness improving device of a stepless numerical control lathe, which relates to the technical field of numerical control lathe processing, and comprises a protective shell and a grinding mechanism capable of adjusting the position up and down, and a processing table is fixedly arranged in the protective shell. According to the device, the spraying angle of cooling liquid can be reasonably adjusted according to the size of a workpiece, it is ensured that the cooling liquid fully covers the grinding area, the cooling effect in the workpiece surface roughness improving process is improved, meanwhile, in the grinding process, the grinding efficiency is improved, and the grinding efficiency is improved. Cooling liquid is sprayed to a grinding area through the multiple spray heads, heat generated by the grinding wheel disc can be rapidly transmitted out through the cooling ring and the heat dissipation plate, the grinding wheel disc is cooled in time in the mode that the cooling liquid and the heat dissipation plate are combined, and workpiece surface burning, surface hardness reduction and crack generation are avoided.

Description

Technical Field

[0001] This utility model relates to the field of CNC lathe machining technology, and in particular to a workpiece surface roughness improvement device for a continuously variable CNC lathe. Background Technology

[0002] In the machining process of a continuously variable CNC lathe, the surface roughness of the workpiece is one of the important indicators for measuring the machining quality. Due to various factors, the surface roughness of the workpiece after machining by the existing continuously variable CNC lathe is often difficult to meet the ideal precision requirements. Therefore, it is necessary to improve the surface roughness of the workpiece after machining by the continuously variable CNC lathe. The improvement methods are usually cutting, grinding and polishing.

[0003] For example, Chinese patent CN203228094U discloses a device for reducing surface roughness on a vertical lathe, including a tool post and a support.

[0004] Traditional grinding equipment generates a large amount of heat during the grinding process on the workpiece surface. Cooling is usually achieved through coolant. However, existing coolants cannot adjust the spray angle according to the workpiece size, cannot ensure that the coolant fully covers the grinding area, and cannot remove the heat and grinding debris generated during grinding in time. This causes changes in the metallographic structure of the workpiece surface layer, resulting in surface burns, decreased surface hardness, and cracks, which in turn affect the surface roughness. To address these issues, a workpiece surface roughness improvement device for a continuously variable CNC lathe is proposed. Utility Model Content

[0005] The purpose of this invention is to solve the problems existing in the prior art and to propose a workpiece surface roughness improvement device for a continuously variable CNC lathe.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a workpiece surface roughness improvement device for a continuously variable CNC lathe, comprising a protective shell and a grinding mechanism that can be adjusted vertically. A processing table is fixedly installed inside the protective shell. The grinding mechanism includes a grinding wheel and a grinding motor. A cooling ring is movably connected to one side of the grinding wheel, and heat dissipation plates are symmetrically fixed at both ends of the cooling ring. A cooling mechanism is fixedly installed on the outside of the protective shell. The cooling mechanism includes a storage tank, a cooling box, a pump body, a mounting plate, and a connecting rod. A water pipe is installed inside the mounting plate, and the mounting plate is fixedly installed on the inside of the protective shell. One end of the pump body is connected to the storage tank, and the other end of the pump body is connected to the water pipe. Multiple nozzles are evenly and movably connected to the outside of the water pipe, and the multiple nozzles are interconnected through the connecting rod. The two ends of the connecting rod are rotatably connected to the two ends of the mounting plate. A movable gear is fixedly connected to one end of the connecting rod, and an extension rod is fixedly connected to one end of the movable gear. A filter box is fixedly installed at the bottom of the protective shell.

[0007] Preferably, the outer wall of the movable gear meshes with the inner side of the protective shell, and a return pump is fixedly installed at the bottom of the protective shell. The two ends of the return pump are connected to the filter box and the cooling box, respectively, and one end of the cooling box is fixedly connected to the storage box.

[0008] Preferably, the grinding mechanism further includes a fixed plate, an adjusting motor, a threaded rod, a first bevel gear, a second bevel gear, and a movable seat. Two support rods are symmetrically fixed to the bottom of the fixed plate, and the bottom of the support rods passes through the movable seat and is fixedly installed with the protective shell.

[0009] Preferably, the grinding motor and the grinding wheel are respectively located on both sides of the movable seat, and the output end of the grinding motor is fixedly connected to one end of the grinding wheel.

[0010] Preferably, bevel gear one is rotatably mounted on the top of the fixed plate, the output end of the adjusting motor is fixedly connected to bevel gear two, and the outer edge of bevel gear one meshes with the outer edge of bevel gear two.

[0011] Preferably, the bottom of the threaded rod is rotatably connected to the top of the movable seat, and the top of the threaded rod passes through the second bevel gear and is threadedly engaged with the second bevel gear. One end of the heat sink is fixedly connected to the movable seat.

[0012] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0013] 1. In this utility model, by rotating the extension rod and the movable gear, the connecting rod and multiple nozzles are driven to rotate, which facilitates the adjustment of the spray angle of multiple nozzles. The device can reasonably adjust the spray angle of the coolant according to the size of the workpiece to ensure that the coolant fully covers the grinding area. When cutting into the grinding, the coolant nozzle is aligned with the leading edge of the grinding area, so that the coolant can play a cooling and lubricating role at the moment the abrasive grains cut the workpiece, thereby improving the cooling effect in the process of improving the surface roughness of the workpiece.

[0014] 2. In this utility model, during the grinding process, the pump body delivers the coolant from the storage tank to the water pipe, and finally sprays the coolant into the grinding area through multiple nozzles. At the same time, the grinding wheel generates a large amount of heat when rotating at high speed. The heat is promptly transferred to the cooling ring and heat sink behind it. The cooling ring and heat sink can quickly transfer the heat away. Through the combination of coolant and heat sink, the grinding wheel is cooled in time. The coolant carries away the heat and grinding debris generated during grinding, avoiding burns on the workpiece surface, decrease in surface hardness, and cracks. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural schematic diagram of a workpiece surface roughness improvement device for a continuously variable CNC lathe proposed in this utility model;

[0016] Figure 2This is a top view schematic diagram of a workpiece surface roughness improvement device for a continuously variable CNC lathe proposed in this utility model;

[0017] Figure 3 This utility model proposes a workpiece surface roughness improvement device for a continuously variable CNC lathe. Figure 2 Enlarged detail view of point A in the middle;

[0018] Figure 4 This is a schematic diagram of the grinding mechanism of a workpiece surface roughness improvement device for a continuously variable CNC lathe proposed in this utility model;

[0019] Figure 5 This is a side sectional view of a workpiece surface roughness improvement device for a continuously variable CNC lathe proposed in this utility model.

[0020] Legend: 1. Grinding mechanism; 2. Protective shell; 3. Machining table; 4. Cooling mechanism; 10. Support rod; 11. Fixing plate; 12. Adjusting motor; 13. Grinding wheel; 14. Threaded rod; 15. Grinding motor; 16. Cooling ring; 17. Heat sink; 18. Bevel gear one; 19. Bevel gear two; 110. Movable seat; 41. Storage tank; 42. Cooling tank; 43. Pump body; 44. Return pump; 45. Mounting plate; 46. Water pipe; 47. Nozzle; 48. Connecting rod; 49. Movable gear; 410. Extension rod; 411. Filter box. Detailed Implementation

[0021] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0022] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0023] Example 1: As Figure 1 - Figure 5As shown, this utility model provides a workpiece surface roughness improvement device for a continuously variable CNC lathe, including a protective shell 2 and a grinding mechanism 1 whose position can be adjusted vertically. A processing table 3 is fixedly installed inside the protective shell 2. The grinding mechanism 1 includes a grinding wheel 13 and a grinding motor 15. A cooling ring 16 is movably connected to one side of the grinding wheel 13, and heat dissipation plates 17 are symmetrically fixed to both ends of the cooling ring 16. A cooling mechanism 4 is fixedly installed on the outside of the protective shell 2. The cooling mechanism 4 includes a storage box 41, a cooling box 42, a pump body 43, a mounting plate 45, and a connecting rod 48. A water pipe 46 is installed inside the mounting plate 45, and the mounting plate 45 is fixedly installed inside the protective shell 2. One end of the pump body 43 is connected to... Storage tank 41 is connected, and the other end of pump body 43 is connected to water pipe 46. Multiple nozzles 47 are evenly and movably connected to the outside of water pipe 46, and the multiple nozzles 47 are connected to each other through connecting rod 48. The two ends of connecting rod 48 are rotatably connected to the two ends of mounting plate 45. One end of connecting rod 48 is fixedly connected to movable gear 49, and one end of movable gear 49 is fixedly connected to extension rod 410. Filter box 411 is fixedly fixed at the bottom of protective shell 2. The outer wall of movable gear 49 meshes with the inner side of protective shell 2. Return pump 44 is fixedly installed at the bottom of protective shell 2. The two ends of return pump 44 are respectively connected to filter box 411 and cooling box 42. One end of cooling box 42 is fixedly connected to storage tank 41.

[0024] The specific settings and functions of this embodiment are described below: During the grinding process, the pump body 43 and the return pump 44 are turned on. The pump body 43 delivers the coolant in the storage tank 41 to the water pipe 46, and finally sprays the coolant into the grinding area through multiple nozzles 47. At the same time, the grinding wheel 13 generates a lot of heat when rotating at high speed. The heat is transferred to the cooling ring 16 and heat sink 17 behind it in time. The cooling ring 16 and heat sink 17 can quickly transfer the heat away. Through the combination of coolant and heat sink 17, the grinding wheel 13 is cooled in time. The coolant takes away the heat and grinding debris generated by grinding in time, avoiding burns on the workpiece surface, decrease in surface hardness, and cracks. After the coolant flows into the bottom filter box 411 for filtration, the return pump 44 delivers the recovered coolant to the cooling box 42 for cooling, and finally delivers it back to the storage tank 41 for recycling.

[0025] Meanwhile, when the workpiece size and height change, the extension rod 410 and the movable gear 49 are rotated, thereby driving the connecting rod 48 and multiple nozzles 47 to rotate, which facilitates the adjustment of the spray angle of the multiple nozzles 47. This device can reasonably adjust the spray angle of the coolant according to the workpiece size to ensure that the coolant fully covers the grinding area. When cutting into the grinding area, the coolant nozzle is aligned with the leading edge of the grinding area, so that the coolant can cool and lubricate the workpiece instantly, improving the cooling effect during the workpiece surface roughness improvement process.

[0026] Example 2: Figure 1 , Figure 2 and Figure 4 As shown, the grinding mechanism 1 also includes a fixed plate 11, an adjusting motor 12, a threaded rod 14, a bevel gear 18, a bevel gear 19, and a movable seat 110. Two support rods 10 are symmetrically fixed to the bottom of the fixed plate 11, and the bottom of the support rods 10 passes through the movable seat 110 and is fixedly installed with the protective shell 2. The grinding motor 15 and the grinding wheel 13 are respectively arranged on both sides of the movable seat 110, and the output end of the grinding motor 15 is fixedly connected to one end of the grinding wheel 13. The bevel gear 18 is rotatably installed on the top of the fixed plate 11. The output end of the adjusting motor 12 is fixedly connected to the bevel gear 19, and the outer edge of the bevel gear 18 meshes with the outer edge of the bevel gear 19. The bottom of the threaded rod 14 is rotatably connected to the top of the movable seat 110, and the top end of the threaded rod 14 passes through the bevel gear 19 and is threadedly meshed with the bevel gear 19. One end of the heat sink 17 is fixedly connected to the movable seat 110.

[0027] The overall effect of this embodiment is as follows: when the adjustment motor 12 is turned on, the adjustment motor 12 drives the second bevel gear 19 to rotate, which in turn drives the first bevel gear 18 to rotate. Because the inner wall of the first bevel gear 18 meshes with the outer wall of the threaded rod 14, the threaded rod 14 and the movable seat 110 move downward, thereby adjusting the height of the grinding wheel 13. After the height of the grinding mechanism 1 is adjusted, the grinding motor 15 is turned on, and the grinding motor 15 drives the grinding wheel 13 to rotate, so that the grinding wheel 13 can grind the surface of the workpiece.

[0028] The usage and working principle of this device are as follows: When improving the surface roughness of a workpiece machined by a stepless CNC lathe, the workpiece is first fixed on the machining table 3. The grinding mechanism 1 is adjusted according to the height of the workpiece surface. The adjusting motor 12 is turned on, which drives the bevel gear 19 to rotate, thereby driving the bevel gear 18 to rotate. Because the inner wall of the bevel gear 18 meshes with the outer wall of the threaded rod 14, the threaded rod 14 and the movable seat 110 are moved downward, thereby adjusting the height of the grinding wheel 13. After adjusting the height of the grinding mechanism 1, the grinding motor 15 is turned on, which drives the grinding wheel 13 to rotate, so that the grinding wheel 13 can grind the surface of the workpiece.

[0029] Simultaneously, during the grinding process, the pump body 43 and the return pump 44 are turned on. The pump body 43 delivers the coolant in the storage tank 41 to the water pipe 46, and finally sprays the coolant into the grinding area through multiple nozzles 47. At the same time, the heat generated by the grinding wheel 13 when it rotates at high speed is transferred to the cooling ring 16 and the heat sink 17 behind it in a timely manner. The cooling ring 16 and the heat sink 17 can quickly transfer the heat away. The grinding wheel 13 is cooled in a timely manner by the combination of coolant and heat sink 17.

[0030] By rotating the extension rod 410 and the movable gear 49, the connecting rod 48 and multiple nozzles 47 are driven to rotate, which facilitates the adjustment of the spray angle of the multiple nozzles 47. The device can reasonably adjust the spray angle of the coolant according to the workpiece size to ensure that the coolant fully covers the grinding area and improves the cooling effect during the workpiece surface roughness improvement process.

[0031] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the present utility model.

Claims

1. A workpiece surface roughness improvement device for a continuously variable CNC lathe, comprising a protective housing (2) and a grinding mechanism (1) whose position can be adjusted vertically, wherein a processing table (3) is fixedly installed inside the protective housing (2), and the grinding mechanism (1) comprises a grinding wheel (13) and a grinding motor (15), characterized in that: A cooling ring (16) is movably connected to one side of the grinding wheel (13), and heat dissipation plates (17) are symmetrically fixed at both ends of the cooling ring (16). A cooling mechanism (4) is fixedly installed on the outside of the protective shell (2). The cooling mechanism (4) includes a storage tank (41), a cooling tank (42), a pump body (43), a mounting plate (45), and a connecting rod (48). A water pipe (46) is installed inside the mounting plate (45), and the mounting plate (45) is fixedly installed on the inside of the protective shell (2). One end of the pump body (43) is connected to the storage tank. The box (41) is connected, and the other end of the pump body (43) is connected to the water pipe (46). Multiple nozzles (47) are evenly and movably connected to the outside of the water pipe (46), and the multiple nozzles (47) are connected to each other through the connecting rod (48). The two ends of the connecting rod (48) are rotatably connected to the two ends of the mounting plate (45). One end of the connecting rod (48) is fixedly connected to the movable gear (49), and one end of the movable gear (49) is fixedly connected to the extension rod (410). The bottom of the protective shell (2) is fixedly fitted with a filter box (411).

2. The workpiece surface roughness improvement device for a continuously variable CNC lathe according to claim 1, characterized in that: The outer wall of the movable gear (49) meshes with the inner side of the protective shell (2). A return pump (44) is fixedly installed at the bottom of the protective shell (2). The two ends of the return pump (44) are connected to the filter box (411) and the cooling box (42) respectively. One end of the cooling box (42) is fixedly connected to the storage box (41).

3. The workpiece surface roughness improvement device for a continuously variable CNC lathe according to claim 1, characterized in that: The grinding mechanism (1) also includes a fixed plate (11), an adjusting motor (12), a threaded rod (14), a bevel gear one (18), a bevel gear two (19), and a movable seat (110). Two support rods (10) are symmetrically fixed at the bottom of the fixed plate (11), and the bottom of the support rods (10) passes through the movable seat (110) and is fixedly installed with the protective shell (2).

4. The workpiece surface roughness improvement device for a continuously variable CNC lathe according to claim 3, characterized in that: The grinding motor (15) and the grinding wheel (13) are respectively located on both sides of the movable seat (110), and the output end of the grinding motor (15) is fixedly connected to one end of the grinding wheel (13).

5. The workpiece surface roughness improvement device for a continuously variable CNC lathe according to claim 3, characterized in that: The first bevel gear (18) is rotatably mounted on the top of the fixed plate (11), the output end of the adjusting motor (12) is fixedly connected to the second bevel gear (19), and the outer edge of the first bevel gear (18) meshes with the outer edge of the second bevel gear (19).

6. The workpiece surface roughness improvement device for a continuously variable CNC lathe according to claim 3, characterized in that: The bottom of the threaded rod (14) is rotatably connected to the top of the movable seat (110), and the top of the threaded rod (14) passes through the second bevel gear (19) and is threadedly engaged with the second bevel gear (19). One end of the heat sink (17) is fixedly connected to the movable seat (110).

Images