A vertical CNC lathe facilitating loading and unloading

Abstract

The present invention relates to the technical field of numerically controlled lathes, and specifically discloses a vertical numerically controlled lathe facilitating loading and unloading, which comprises: a lathe body and a loading and unloading device. The lathe body includes a frame, a workbench, a feeding mechanism and a tool. The workbench is arranged on the frame, a chuck is arranged on the workbench, the feeding mechanism is arranged in the frame, and the tool is arranged on the feeding mechanism. The loading and unloading device includes a robotic arm and a flipping assembly. The flipping assembly includes a first mounting plate, a second mounting plate, a first rotating disc, a second rotating disc and a clamping mechanism. The first mounting plate is arranged at the end of the robotic arm, the second mounting plate is rotatably connected to the first mounting plate, the first rotating disc is rotatably fitted on the first mounting plate, the second rotating disc is rotatably fitted on the second mounting plate, there are two clamping mechanisms which are respectively arranged on the first rotating disc and the second rotating disc; The vertical numerically controlled lathe facilitating loading and unloading of the present invention can realize automatic loading and unloading, and can horizontally flip and vertically flip the workpiece.

Description

Technical Field

[0001] The invention relates to the technical field of CNC lathes, and in particular to a vertical CNC lathe which is convenient for loading and unloading materials. Background Art

[0002] A CNC lathe is a high-precision, high-efficiency automated machine tool. CNC lathes include horizontal CNC lathes and vertical CNC lathes. The horizontal CNC lathe has a horizontally arranged spindle and is the most common type of CNC lathe, suitable for processing various shaft and disc parts. The vertical CNC lathe has a vertically arranged spindle and its worktable is horizontally arranged, and is mainly used for processing large disc parts with large diameter and short length.

[0003] For a vertical CNC lathe, when processing a disc-type workpiece, it is necessary to clamp the bottom of the workpiece through the chuck on its worktable, and then the feed system moves the tool to the upper area of the workpiece and performs turning on the upper area of the workpiece. After the upper area of the workpiece is processed, it is necessary to flip the workpiece and process the remaining part of the workpiece.

[0004] A Chinese patent with authorization announcement number CN114474114B discloses a robot for automatically flipping workpieces on a production line. The robot includes a robot arm, a flange rod, and the robot arm is preset on one side of the production line. The flange rod is fixed to the output end of the robot arm. The flipping assembly includes a connecting plate, a first clamping assembly and a second clamping assembly. The connecting plate is fixed to the end of the flange rod away from the robot arm. The flipping assembly includes at least three groups of first clamping assemblies and three groups of second clamping assemblies. The first clamping assembly and the second clamping assembly are symmetrically and rotatably arranged on the connecting plate.

[0005] The above-mentioned manipulator clamps the workpiece through the first clamping assembly or the second clamping assembly, and then drives the first clamping assembly or the second clamping assembly to rotate through the flipping motor, thereby realizing the flipping of the workpiece. However, during the flipping process, the first clamping assembly and the second clamping assembly in the above-mentioned manipulator rotate around the flipping axis through the mounting plate, thereby driving the clamping plate to rotate, and then driving the workpiece clamped by the clamping plate to rotate. Since the mounting plate can only rotate around the axis of the flipping axis, the workpiece can only be flipped in the horizontal plane. When the workpiece needs to be flipped up and down, the above-mentioned manipulator cannot flip the workpiece up and down. Summary of the invention

[0006] The invention provides a vertical CNC lathe which is convenient for loading and unloading materials, aiming to solve the problem in the related art that workpieces need to be turned over when they are processed, and the existing equipment is difficult to meet the need.

[0007] The vertical CNC lathe convenient for loading and unloading of the present invention comprises: a lathe body and a loading and unloading device;

[0008] The lathe body includes a frame, a workbench, a feeding mechanism, and a cutting tool. The workbench is arranged on the frame. A chuck is arranged on the workbench. The feeding mechanism is arranged in the frame. The cutting tool is arranged on the feeding mechanism. The feeding mechanism is used to move the cutting tool.

[0009] The loading and unloading device includes a robotic arm, a first mounting plate, a second mounting plate, a first rotating disk, a second rotating disk, and a clamping mechanism. The first mounting plate is arranged at the end of the robotic arm. The second mounting plate is rotatably connected to the first mounting plate. A first driving member is arranged between the first mounting plate and the second mounting plate. The first driving member is used to drive the second mounting plate to rotate. The first rotating disk is rotatably fitted on the first mounting plate. The second rotating disk is rotatably fitted on the second mounting plate. A driving unit is arranged on the robotic arm. The driving unit is used to drive the first rotating disk and the second rotating disk to rotate. There are two clamping mechanisms, which are respectively arranged on the first rotating disk and the second rotating disk. The clamping mechanism is used to clamp the workpiece.

[0010] Beneficial effects: Before processing, select a suitable chuck according to the shape of the workpiece and fixedly arrange the chuck on the workbench. The robotic arm can move the first mounting plate to directly above the workpiece. The clamping mechanism on the first rotating disk can clamp the workpiece, so that the workpiece is fixed directly below the first rotating disk. The rotation of the first rotating disk can drive the workpiece to rotate horizontally. By driving the second mounting plate to rotate through the first driving member, the second mounting plate can be rotated to directly below the workpiece. At this time, the clamping mechanism on the second rotating disk clamps the workpiece, and the clamping mechanism on the first rotating disk releases the workpiece. The first driving member drives the second mounting plate to rotate in the reverse direction and reset, so that the second mounting plate is reset to be flush with the first mounting plate. At this time, the workpiece is located below the second mounting plate and has been turned over up and down. By moving the robotic arm, the workpiece can be placed on the chuck. Subsequently, the clamping mechanism releases the workpiece, and the robotic arm moves the first mounting portion and the second mounting plate out of the frame. The chuck automatically clamps the workpiece. The feeding mechanism moves the cutting tool and performs turning processing on the workpiece.

[0011] Preferably, one of the clamping mechanisms includes a clamping rod, a fixed seat, and a second driving member. A plurality of chutes distributed along the circumferential direction of the first rotating disk are arranged on the first rotating disk. The chutes extend along the radial direction of the first rotating disk. Each chute is slidably fitted with a clamping rod. The second driving member is arranged on the first rotating disk. The fixed seat is arranged on the output end of the second driving member. The second driving member is used to drive the fixed seat to move up and down. Each clamping rod is hinged to the fixed seat through a connecting rod. The up and down movement of the fixed seat can drive the clamping rod to move in the chute. The two clamping mechanisms have the same structure. The other clamping mechanism is arranged on the second rotating disk.

[0012] The effect is that multiple clamping rods move along the radial direction of the first rotating disk, which can adjust the clamping range of the clamping mechanism, so as to clamp workpieces of different sizes, thereby improving versatility.

[0013] Preferably, an anti-slip pad is provided on the side wall of the clamping rod. The anti-slip pad extends along the axial direction of the clamping rod, and a plurality of anti-slip protrusions are provided on the anti-slip pad at intervals.

[0014] The effect is that setting the anti-slip pad can increase the friction between the clamping rod and the workpiece, and further improve the clamping ability of the clamping mechanism.

[0015] Preferably, a limit block is provided on each clamping rod. The limit block is flush with the corresponding sliding groove, and the side wall of the limit block fits with the side wall of the sliding groove. The limit block can slide along the sliding groove.

[0016] The effect is that setting the limit block makes the limit block fit tightly in the sliding groove, preventing a gap from being generated between the side wall of the clamping rod and the side wall of the sliding groove, resulting in the shaking of the clamping rod, so as to avoid the influence of the shaking of the clamping rod on the clamping effect.

[0017] Preferably, a limit groove is provided on the side wall of the sliding groove, and an outer edge is provided on the side wall of the limit block. The outer edge is slidably fitted in the limit groove and restricts the up and down movement of the clamping rod.

[0018] Preferably, the driving unit includes a third driving member, a first driving rod, a second driving rod and a third driving rod. The third driving member is provided in the robotic arm. One end of the first driving rod is connected to the output end of the third driving member, and a first gear is provided at the other end thereof. The second driving rod and the third driving rod are respectively rotatably fitted in the first mounting plate and the second mounting plate. Second gears and third gears are respectively provided at both ends of the second driving rod. The second gear meshes with the first gear, the third gear meshes with the first rotating disk, fourth gears and fifth gears are respectively provided at both ends of the third driving rod. The fourth gear meshes with the first gear, and the fifth gear meshes with the second rotating disk.

[0019] Preferably, an upwardly inclined first tooth groove is provided at the bottom of the side wall of the first rotating disk. The first tooth groove meshes with the bottom of the third gear. A downwardly inclined second tooth groove is provided at the top of the side wall of the second rotating disk. The second tooth groove meshes with the top of the fifth gear, so as to ensure the synchronous rotation of the first rotating disk and the second rotating disk.

[0020] Preferably, cleaning brushes are provided at the bottom ends of the first rotating disk and the second rotating disk. The cleaning brushes extend along the radial direction of the first rotating disk or the second rotating disk, and are used for cleaning debris or oil stains on the end face of the workpiece.

[0021] The effect is that the cleaning brush is located between the workpiece and the first rotating disk or the second rotating disk. Before the workpiece is clamped, the cleaning brush is driven to rotate by the first rotating disk or the second rotating disk, so that the cleaning brush can clean the oil stains and debris on the end face of the workpiece.

[0022] Preferably, a rotating hole is provided on the first mounting plate, a rotating shaft is fixedly arranged on the second mounting plate, the rotating shaft is slidably fitted in the rotating hole, the first driving member is fixedly arranged on the first rotating disk, and its output end is fixedly connected to the rotating shaft. The first driving member drives the rotating shaft to rotate, thereby driving the second mounting plate to rotate relative to the first mounting plate.

[0023] Preferably, the robotic arm includes a base, a rotating seat, a first rotating arm, a second rotating arm, a third rotating arm and a fourth rotating arm. The base is supported on the bottom surface, the rotating seat is rotatably arranged on the base, the tail end of the first rotating arm is rotatably connected to the rotating seat, the tail end of the second rotating arm is rotatably connected to the head end of the first rotating arm, the third rotating arm is sleeved on the head end of the second rotating arm and is rotatably matched with the second rotating arm, the tail end of the fourth rotating arm is rotatably connected to the head end of the third rotating arm, and the tail end of the fourth rotating arm is fixedly connected to the first mounting plate.

[0024] Adopting the above technical solution, the beneficial effect of the present invention is as follows:

[0025] For the vertical CNC lathe facilitating loading and unloading according to the present invention, before machining, a suitable chuck is selected according to the shape of the workpiece and fixed on the workbench. The robotic arm can move the first mounting plate to directly above the workpiece, and the clamping mechanism on the first rotating disk can clamp the workpiece, so that the workpiece is fixed directly below the first rotating disk. The rotation of the first rotating disk can drive the workpiece to rotate horizontally. By driving the second mounting plate to rotate through the first driving member, the second mounting plate can be rotated to directly below the workpiece. At this time, the clamping mechanism on the second rotating disk clamps the workpiece, and the clamping mechanism on the first rotating disk releases the workpiece. The first driving member drives the second mounting plate to rotate in the reverse direction and reset, so that the second mounting plate is reset to be flush with the first mounting plate. At this time, the workpiece is located below the second mounting plate and has been turned over up and down. By moving the robotic arm, the workpiece can be placed on the chuck. Subsequently, the clamping mechanism releases the workpiece, the robotic arm moves the first mounting part and the second mounting plate out of the frame body, the chuck automatically clamps the workpiece, and the feeding mechanism moves the tool and performs turning processing on the workpiece. The vertical CNC lathe facilitating loading and unloading according to the present invention can freely adjust the posture of the workpiece through the loading and unloading device, so as to ensure that the workpiece is placed on the chuck in a suitable posture. At the same time, it can also rotate the workpiece horizontally and turn it over up and down. Description of the Drawings

[0026] Figure 1 It is a schematic structural diagram of a vertical numerically controlled lathe facilitating loading and unloading according to an embodiment of the present invention.

[0027] Figure 2 It is a schematic structural diagram of the loading and unloading device according to an embodiment of the present invention.

[0028] Figure 3 It is a front view of the flipping assembly according to an embodiment of the present invention.

[0029] Figure 4 It is a bottom view of the flipping assembly according to an embodiment of the present invention.

[0030] Figure 5 It is a cross-sectional view of the flipping assembly according to an embodiment of the present invention.

[0031] Figure 6 It is a front view of the driving unit according to an embodiment of the present invention.

[0032] Figure 7 It is a schematic structural diagram of the first rotating disk according to an embodiment of the present invention.

[0033] Figure 8 It is a schematic structural diagram of the clamping mechanism according to an embodiment of the present invention.

[0034] Figure 9 It is a side view of the clamping rod according to an embodiment of the present invention.

[0035] Figure 10 It is a front view of the flipping assembly in another state according to an embodiment of the present invention.

[0036] Reference numerals:

[0037] 1000, lathe body; 2000, loading and unloading device; 3000, workpiece;

[0038] 101, base; 102, rotating seat; 103, first rotating arm; 104, second rotating arm; 105, third rotating arm; 106, fourth rotating arm; 2, first mounting plate; 3, second mounting plate; 4, first rotating disk; 41, first tooth groove; 5, second rotating disk; 51, second tooth groove; 6, first driving member; 7, driving unit; 71, first driving rod; 72, second driving rod; 73, third driving rod; 74, first gear; 75, second gear; 76, third gear; 77, fourth gear; 78, fifth gear; 8, clamping mechanism; 81, clamping rod; 82, fixed seat; 83, second driving member; 84, connecting rod; 85, sliding groove; 851, limiting groove; 9, limiting block; 91, outer edge; 10, anti-slip pad; 11, cleaning brush. Detailed implementation manners

[0039] Embodiments of the present invention will be described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention.

[0040] As Figures 1 to 10 shown, the vertical CNC lathe facilitating loading and unloading of the present invention includes: a lathe body 1000 and a loading and unloading device 2000, wherein the lathe body 1000 is used for turning a workpiece 3000, and the loading and unloading device 2000 is used for placing the workpiece 3000 to be processed in the lathe body 1000 before processing and taking out the workpiece 3000 after processing is completed.

[0041] Specifically, as Figure 1 shown, the lathe body 1000 is a vertical CNC lathe in the conventional technology. The lathe body 1000 includes a frame, a workbench, a feeding mechanism, and a tool. The frame is supported on the ground, the workbench is fixedly arranged in the frame, a chuck can be detachably arranged on the workbench, and the chuck is used for fixing the workpiece 3000. The feeding mechanism includes a cross slide and a lifting structure. The cross slide is slidably engaged in the frame and can move on a horizontal plane. The lifting mechanism is a hydraulic cylinder, which is fixedly arranged at the bottom of the cross slide. The output end of the lifting mechanism is fixedly provided with a tool mounting seat, and the tool can be detachably mounted in the tool mounting seat. The feeding mechanism can realize the movement of the tool in the frame along six degrees of freedom directions.

[0042] As Figure 1 and Figure 2 shown, the loading and unloading device 2000 includes a robotic arm and a flipping assembly. The robotic arm is arranged beside the lathe body 1000 and is spaced apart from the lathe body 1000. The robotic arm includes a base 101, a rotating seat 102, a first rotating arm 103, a second rotating arm 104, a third rotating arm 105, and a fourth rotating arm 106. The base 101 is supported on the ground, the rotating seat 102 is rotatably engaged with the base 101, and the rotating seat 102 can rotate relative to the base 101 in a horizontal plane. The tail end of the first rotating arm 103 is rotatably connected to the rotating seat 102, and the first rotating arm 103 can rotate around its connection point with the rotating seat 102. The tail end of the second rotating arm 104 is rotatably connected to the head end of the first rotating arm 103, and the second rotating arm 104 can rotate around its connection point with the first rotating arm 103. The third rotating arm 105 is sleeved at the head end of the second rotating arm 104 and is slidably engaged with the second rotating arm 104. The third rotating arm 105 can rotate relative to the second rotating arm 104 along the circumferential direction of the second rotating arm 104. The tail end of the fourth rotating arm 106 is rotatably connected to the head end of the third rotating arm 105, and the fourth rotating arm 106 can rotate around its connection point with the third rotating arm 105. By the rotation of the rotating seat 102 and each rotating arm, the tail end of the fourth rotating arm 106 can be freely moved in space.

[0043] As shown Figures 2 to 6 in the figure, the flipping assembly includes a first mounting plate 2, a second mounting plate 3, a first rotating disk 4, a second rotating disk 5 and a clamping mechanism 8. The first mounting plate 2 is fixedly connected to the tail end of the fourth rotating arm 106. A rotating hole is provided on the side wall of the first mounting plate 2, and a rotating shaft is provided on the side wall of the second mounting plate 3. The rotating shaft extends into the rotating hole and is rotationally matched with the rotating hole. A first driving member 6 is fixedly arranged on the first mounting plate 2. The first driving member 6 is a motor, and its output end is fixedly connected to the rotating shaft. The first driving member 6 can drive the second mounting plate 3 to rotate relative to the first mounting plate 2 around the rotating shaft. The first rotating disk 4 is rotationally matched at the center of the first mounting plate 2, and the second rotating disk 5 is rotationally matched at the center of the second mounting plate 3. A driving unit 7 is provided between the fourth rotating arm 106 and the first mounting plate 2 and the second mounting plate 3. The driving unit 7 includes a third driving member, a first driving rod 71, a second driving rod 72 and a third driving rod 73. The third driving member is fixedly arranged in the fourth rotating arm 106. The third driving member is a motor. One end of the first driving member 6 is fixedly connected to the output end of the third driving member, and the other end is fixedly provided with a first gear 74. The second driving rod 72 is rotationally matched in the first mounting plate 2. One end of the second driving rod 72 is fixedly provided with a second gear 75, and the other end is fixedly provided with a third gear 76. The third gear 76 meshes with the first gear 74. A first tooth groove 41 is provided at the bottom of the side wall of the first rotating disk 4, and the first tooth groove 41 meshes with the third gear 76. The third rotating rod is rotationally matched in the second mounting plate 3. One end of the third driving rod 73 is fixedly provided with a fourth gear 77, and the fourth gear 77 meshes with the first gear 74. The other end of the third driving rod 73 is fixedly provided with a fifth gear 78. A second tooth groove 51 is provided at the top of the side wall of the second rotating disk 5, and the second tooth groove 51 meshes with the fifth gear 78. The first gear 74, the second gear 75, the third gear 76, the fourth gear 77 and the fifth gear 78 are all helical gears. Since the second driving rod 72 and the third driving rod 73 are respectively located on both sides of the first driving rod 71, when the first driving rod 71 rotates, the rotation directions of the second driving rod 72 and the third driving rod 73 are opposite. The first tooth groove 41 is a helical tooth groove, and the first tooth groove 41 meshes with the bottom of the third gear 76. The second tooth groove 51 is a helical tooth groove, and the second tooth groove 51 meshes with the top of the fifth gear 78, so that the rotation directions of the first rotating disk 4 and the second rotating disk 5 are the same. When the driving unit 7 drives the two to rotate, they can rotate synchronously.

[0044] As Figure 3 、 Figures 7 to 9As shown, clamping mechanisms 8 are provided on both the first rotating disk 4 and the second rotating disk 5. The clamping mechanism 8 includes a clamping rod 81, a fixed seat 82, and a second driving member 83. Four sliding grooves 85 are provided on the first rotating disk 4. The four sliding grooves 85 are evenly distributed circumferentially along the first rotating disk 4. Each sliding groove 85 extends along the radial direction of the first rotating disk 4. The inner ends of the four sliding grooves 85 communicate with each other to form a cross structure. A clamping rod 81 is fitted in each sliding groove 85. A limiting block 9 is fixedly provided at the top end of the clamping rod 81. The limiting block 9 is a rectangular block. The width of the limiting block 9 is the same as the width of the sliding groove 85. The side wall of the limiting block 9 is in contact with the side wall of the sliding groove 85. An outer edge 91 is fixedly provided on the side wall of the limiting block 9. A limiting groove 851 is provided on the side wall of the sliding groove 85. The outer edge 91 can extend into the limiting groove 851 and move along the limiting groove 851. The upper surface and the lower surface of the outer edge 91 are in abutment with the groove walls of the limiting groove 851, so as to prevent the clamping rod 81 from moving up and down. A gantry is fixedly provided on the first rotating disk 4. The second driving member 83 is a hydraulic cylinder, which is fixedly provided on the gantry. The output end of the second driving member 83 extends downward. The fixed seat 82 is fixedly provided on the output end of the second driving member 83. Each limiting block 9 is hinged to the fixed seat 82 through a connecting rod 84. When the second driving member 83 drives the fixed seat 82 to move upward, the fixed seat 82 pulls the clamping rod 81 to move inward along the sliding groove 85 through the connecting rod 84. When the second driving member 83 drives the fixed seat 82 to move downward, the fixed seat 82 pushes the clamping rod 81 to move outward along the sliding groove 85 through the connecting rod 84. Anti-slip pads 10 are provided on both the inner side wall and the outer side wall of the clamping rod 81. The anti-slip pads 10 are made of flexible rubber. A plurality of anti-slip protrusions are provided on the anti-slip pads 10 at intervals along the axial direction of the clamping rod 81. The anti-slip pads 10 are used to increase the friction between the clamping rod 81 and the workpiece 3000 and improve the clamping ability of the clamping rod 81. The structure of the second rotating disk 5 is the same as that of the first rotating disk 4.

[0045] As Figure 4 , Figure 6 and Figure 7 shown, a plurality of cleaning brushes 11 are also fixedly provided at the bottom ends of the first rotating disk 4 and the second rotating disk 5. The plurality of cleaning brushes 11 are evenly spaced circumferentially along the first rotating disk 4 or the second rotating disk 5. Each cleaning brush 11 extends along the radial direction of the first rotating disk 4 or the second rotating disk 5. When the clamping mechanism 8 clamps the workpiece 3000, the cleaning brush 11 is located between the workpiece 3000 and the first rotating disk 4 or the second rotating disk 5.

[0046] The implementation principle of the vertical CNC lathe that is convenient for loading and unloading in the embodiment of the present invention is as follows: the robot arm moves the first mounting plate 2 to the top of the workpiece 3000, and makes the first rotating disk 4 coaxially distributed with the workpiece 3000, and then the robot arm drives the first mounting plate 2 to move downward, so that the cleaning brush 11 at the bottom of the first rotating disk 4 stops at the top of the workpiece 3000, the third driving member is started, and drives the second driving rod 72 to rotate through the engagement of the first gear 74 and the second gear 75, the second driving rod 72 drives the first rotating disk 4 to rotate through the third gear 76, the cleaning brush 11 rotates synchronously with the first rotating disk 4, and cleans the workpiece 3000, removes oil and debris attached to the upper area of the workpiece 3000, and cleans the workpiece 3000. After cleaning is completed, the third driving member stops, and the second driving member 83 drives the fixed seat 82 to move upward, and the fixed seat 82 pulls the clamping rod 81 inward through the connecting rod 84, so that the clamping rod 81 clamps the outer wall of the workpiece 3000. In some other embodiments, the outer wall of the workpiece 3000 is difficult to clamp, and the second driving member 83 can drive the fixed seat 82 to move upward to the limit, so that the clamping rod 81 is retracted to the limit, and the first mounting plate 2 moves downward and the clamping rod 81 extends into the inner hole of the workpiece 3000. After cleaning is completed, the second driving member 83 drives the fixed seat 82 to move downward until the clamping rod 81 stops against the inner hole wall of the workpiece 3000, thereby clamping the workpiece 3000.

[0047] After clamping is completed, the robot arm moves the first mounting plate 2 to the top of the workbench and slowly descends until the workpiece 3000 falls on the chuck on the workbench. The chuck automatically locks the workpiece 3000, and the second driving member 83 drives the clamping rod 81 to disengage from the workpiece 3000 and move it out of the frame, and then the turning operation is performed.

[0048] If turning machining is not required for the lower region of the workpiece 3000, during the machining process, the loading and unloading device 2000 uses the first mounting plate 2 to clamp another workpiece 3000 to be machined again. After the turning machining is completed, the feeding mechanism moves the tool away, and the robotic arm moves the second mounting plate 3 to directly above the workpiece 3000 after machining. Then it slowly descends, making the cleaning pad at the bottom of the second mounting plate 3 contact the workpiece 3000 after machining. The driving unit 7 drives the second mounting plate 3 to rotate. When the second mounting plate 3 rotates, the cleaning brush 11 can clean the debris on the end face of the workpiece 3000 after machining. Then the rotation of the second rotating disk 5 is stopped, and the clamping mechanism 8 clamps the workpiece 3000 after machining. The chuck is loosened, and the robotic arm drives the first mounting part and the second mounting plate 3 to move upward. The third robotic arm rotates, so that the first mounting plate 2 and the second mounting plate 3 exchange positions. Then the workpiece 3000 to be machined below the first mounting plate 2 is placed on the workbench. Subsequently, the robotic arm moves the first mounting plate 2 and the second mounting plate 3 out of the frame body, and places the workpiece 3000 after machining below the second mounting plate 3 in the unloading area, completing automatic loading and unloading.

[0049] If turning machining is required for the lower region of the workpiece 3000, after the machining of the upper region of the workpiece 3000 is completed, the feeding mechanism moves the tool away, and the robotic arm moves the first mounting plate 2 to directly above the workpiece 3000. Then the first mounting plate 2 descends, and the cleaning brush 11 at the bottom of the first mounting plate 2 contacts the workpiece 3000. The driving unit 7 drives the first mounting plate 2 to rotate, and the cleaning brush 11 can remove the debris on the end face of the workpiece 3000. Then the clamping mechanism 8 on the first rotating disk 4 clamps the workpiece 3000, and the workpiece 3000 is moved out of the frame body by the robotic arm. Subsequently, the first driving member 6 drives the second mounting plate 3 to rotate around the rotating shaft until the second mounting plate 3 rotates to directly below the workpiece 3000, specifically as Figure 10 shown. The clamping mechanism 8 on the second rotating disk 5 clamps the workpiece 3000, and the clamping mechanism 8 on the first rotating disk 4 loosens the workpiece 3000. The first driving member 6 drives the rotating shaft to rotate in the reverse direction, so that the second mounting plate 3 returns to its original position. At this time, the workpiece 3000 is turned over 180 degrees. Subsequently, the robotic arm moves the second mounting plate 3 to directly above the workbench and slowly descends until the workpiece 3000 is placed on the workbench. At this time, the chuck clamps the workpiece 3000, and the clamping mechanism 8 on the second rotating disk 5 loosens the workpiece 3000. The robotic arm moves the second mounting plate 3 out of the workbench, and then turning machining is performed to process the remaining part of the workpiece 3000.

[0050] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those of ordinary skill in the art can make changes, modifications, substitutions, and variations to the above embodiments within the scope of the present invention.

Claims

1. A vertical CNC lathe facilitating loading and unloading, comprising: Lathe body and loading and unloading device; The lathe body includes a frame body, a workbench, a feeding mechanism and a tool. The workbench is arranged on the frame body. A chuck is arranged on the workbench. The feeding mechanism is arranged in the frame body. The tool is arranged on the feeding mechanism. The feeding mechanism is used to move the tool; It is characterized in that the loading and unloading device includes a robotic arm and a flipping assembly. The flipping assembly includes a first mounting plate, a second mounting plate, a first rotating disk, a second rotating disk and a clamping mechanism. The first mounting plate is arranged at the end of the robotic arm. The second mounting plate is rotatably connected to the first mounting plate. A first driving member is arranged between the first mounting plate and the second mounting plate. The first driving member is used to drive the second mounting plate to rotate. The first rotating disk is rotatably fitted on the first mounting plate. The second rotating disk is rotatably fitted on the second mounting plate. A driving unit is arranged on the robotic arm. The driving unit is used to drive the first rotating disk and the second rotating disk to rotate. There are two clamping mechanisms, which are respectively arranged on the first rotating disk and the second rotating disk. The clamping mechanism is used to clamp the workpiece; One of the clamping mechanisms includes a clamping rod, a fixed seat and a second driving member. A plurality of chutes are arranged on the first rotating disk along its circumferential direction. The chutes extend along the radial direction of the first rotating disk. A clamping rod is slidably fitted in each chute. The second driving member is arranged on the first rotating disk. The fixed seat is arranged on the output end of the second driving member. The second driving member is used to drive the fixed seat to move up and down. Each clamping rod is hinged to the fixed seat through a connecting rod. The up and down movement of the fixed seat can drive the clamping rod to move in the chute. The two clamping mechanisms have the same structure. The other clamping mechanism is arranged on the second rotating disk; Cleaning brushes are arranged at the bottom ends of the first rotating disk and the second rotating disk. The cleaning brushes extend along the radial direction of the first rotating disk or the second rotating disk. The cleaning brushes are used to clean the debris or oil stains on the end face of the workpiece. When the clamping mechanism clamps the workpiece, the cleaning brush is located between the workpiece and the first rotating disk or the second rotating disk.

2. The vertical CNC lathe facilitating loading and unloading according to claim 1, wherein, An anti-slip pad is arranged on the side wall of the clamping rod. The anti-slip pad extends along the axial direction of the clamping rod. A plurality of anti-slip protrusions are arranged at intervals on the anti-slip pad.

3. The vertical CNC lathe facilitating loading and unloading according to claim 1, wherein, A limiting block is arranged on each clamping rod. The limiting block is flush with the corresponding chute. The side wall of the limiting block is attached to the side wall of the chute. The limiting block can slide along the chute.

4. The vertical CNC lathe facilitating loading and unloading according to claim 3, characterized in that, A limiting groove is arranged on the side wall of the chute. An outer edge is arranged on the side wall of the limiting block. The outer edge is slidably fitted in the limiting groove and restricts the up and down movement of the clamping rod.

5. The vertical CNC lathe facilitating loading and unloading according to claim 1, wherein The driving unit includes a third driving member, a first driving rod, a second driving rod and a third driving rod. The third driving member is arranged inside the robotic arm. One end of the first driving rod is connected to the output end of the third driving member, and a first gear is provided at the other end thereof. The second driving rod and the third driving rod are respectively rotatably fitted in the first mounting plate and the second mounting plate. Second gears and third gears are respectively provided at both ends of the second driving rod. The second gear meshes with the first gear, the third gear meshes with the first rotating disk. Fourth gears and fifth gears are respectively provided at both ends of the third driving rod. The fourth gear meshes with the first gear, and the fifth gear meshes with the second rotating disk.

6. The vertical CNC lathe facilitating loading and unloading according to claim 5, characterized in that, An upwardly inclined first tooth groove is provided at the bottom of the side wall of the first rotating disk. The first tooth groove meshes with the bottom of the third gear. A downwardly inclined second tooth groove is provided at the top of the side wall of the second rotating disk. The second tooth groove meshes with the top of the fifth gear, thereby ensuring synchronous rotation of the first rotating disk and the second rotating disk.

7. The vertical CNC lathe facilitating loading and unloading according to claim 1, characterized in that, A rotation hole is provided in the first mounting plate. A rotation shaft is fixedly provided on the second mounting plate. The rotation shaft is slidably fitted in the rotation hole. The first driving member is fixedly provided on the first rotating disk, and its output end is fixedly connected to the rotation shaft. The first driving member drives the rotation shaft to rotate, thereby driving the second mounting plate to rotate relative to the first mounting plate.

8. The vertical CNC lathe facilitating loading and unloading according to claim 1, characterized in that, The robotic arm includes a base, a rotating seat, a first rotating arm, a second rotating arm, a third rotating arm and a fourth rotating arm. The base is supported on the ground. The rotating seat is rotatably provided on the base. The tail end of the first rotating arm is rotatably connected to the rotating seat. The tail end of the second rotating arm is rotatably connected to the head end of the first rotating arm. The third rotating arm is sleeved on the head end of the second rotating arm and is rotatably fitted with the second rotating arm. The tail end of the fourth rotating arm is rotatably connected to the head end of the third rotating arm. The tail end of the fourth rotating arm is fixedly connected to the first mounting plate.

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