A five-axis CNC machine tool for processing cylindrical workpieces

Abstract

The present application relates to the field of CNC machine tools, and discloses a five-axis CNC machine tool for processing cylindrical workpieces, comprising a machine tool body, a processing mechanism disposed on the machine tool body, a first fixing mechanism and a second fixing mechanism disposed on the machine tool body, a feeding mechanism, and a clamping and discharging mechanism. The present application adopts a first fixing mechanism, a second fixing mechanism, a feeding mechanism, and a clamping and discharging mechanism, and the workpiece can pass through the first fixing mechanism and the second fixing mechanism. The first fixing mechanism and the second fixing mechanism can clamp the workpiece and drive the workpiece to move, and then cooperate with the feeding mechanism and the clamping and discharging mechanism, so as to realize automatic loading and unloading of the workpiece, thereby improving the work efficiency of loading and unloading of the workpiece. At the same time, the first fixing mechanism and the second fixing mechanism, in addition to serving as a clamping and fixing device for the workpiece, can also assist in loading and unloading the workpiece, thereby reducing the use cost of the CNC machine tool body.

Description

Technical Field

[0001] The present application relates to the field of CNC machine tools, and in particular to a five-axis CNC machine tool for machining cylindrical workpieces. Background Art

[0002] A CNC machine tool is an automated machine tool equipped with a program-controlled system. This control system logically processes programs defined by control codes or other symbolic instructions, decodes them, and transmits them as coded digital representations via an information carrier to the CNC device. After computational processing, the CNC device issues various control signals, controlling the machine's movements and automatically producing parts to the shape and size specified in the drawings.

[0003] At present, when a CNC machine tool processes a cylindrical workpiece, it is necessary to first transport the workpiece into the machine tool and fix it. The workpiece is transported by manual handling or grasped by a robot. The three-jaw chuck in the machine tool clamps and fixes the transported workpiece. The machine tool drives the workpiece to rotate through the three-jaw chuck, and the processing tool then processes the workpiece.

[0004] The cylindrical workpieces are loaded and unloaded manually or by robots. Manual loading and unloading is labor-intensive and inefficient, while robot loading and unloading is efficient but also has a high cost. Summary of the Invention

[0005] In order to improve the loading and unloading efficiency of CNC machine tools while reducing the cost of use, the present application provides a five-axis CNC machine tool for processing cylindrical workpieces.

[0006] The present application provides a five-axis CNC machine tool for processing cylindrical workpieces, which adopts the following technical solutions:

[0007] A five-axis CNC machine tool for processing cylindrical workpieces comprises a machine tool body, a processing mechanism movably arranged on the machine tool body and processing the workpiece, a first fixing mechanism and a second fixing mechanism movably arranged on the machine tool body and clamping and fixing the workpiece, a feeding mechanism and a clamping and discharging mechanism located on both sides of the first fixing mechanism and the second fixing mechanism away from each other; the feeding mechanism conveys the workpiece through the first fixing mechanism, the second fixing mechanism moves in the first fixing direction and clamps the end of the workpiece, the second fixing mechanism moves and resets and pulls the workpiece for automatic loading, the first fixing mechanism clamps and fixes the workpiece and cooperates with the second fixing mechanism to drive the workpiece to rotate; when the workpiece is processed, the second fixing mechanism is released, the first fixing mechanism moves in the direction of the second fixing mechanism, the first fixing mechanism drives the workpiece to slide through the second fixing mechanism and moves the workpiece to the clamping and discharging mechanism, the first fixing mechanism is released, and the clamping and discharging mechanism clamps the workpiece and automatically discharges it.

[0008] By adopting the above technical solution, the feeding mechanism loads and conveys the cylindrical workpiece, and the workpiece is conveyed to the first fixing mechanism. When the workpiece moves through the first fixing mechanism, the second fixing mechanism moves toward the first fixing mechanism and clamps the end of the workpiece, and the second fixing mechanism moves and resets, thereby pulling the workpiece for automatic loading; when the second fixing mechanism moves and resets, the first fixing mechanism fixes the workpiece again, and the first fixing mechanism cooperates with the second fixing mechanism to drive the workpiece to rotate, and the processing mechanism on the machine tool body processes the workpiece again; when the workpiece is processed, the second fixing mechanism first releases the fixation of the workpiece, and the first fixing mechanism moves toward the second fixing mechanism and drives the workpiece to pass through the second fixing mechanism. When the workpiece moves into the clamping and discharging mechanism, the first fixing mechanism releases the fixation of the workpiece again, and the clamping and discharging mechanism clamps the workpiece and drives the workpiece to slide out of the first and second fixing mechanisms, thereby pulling the workpiece for automatic unloading. With such arrangement, the workpiece can pass through the first fixing mechanism and the second fixing mechanism, and the first fixing mechanism and the second fixing mechanism can clamp the workpiece and drive the workpiece to move, and then cooperate with the feeding mechanism and the clamping and discharging mechanism to realize automatic loading and unloading of the workpiece, thereby improving the work efficiency of loading and unloading of the workpiece. At the same time, in addition to serving as clamping and fixing devices for the workpiece, the first fixing mechanism and the second fixing mechanism can also assist in loading and unloading the workpiece, thereby reducing the use cost of the CNC machine tool body.

[0009] Preferably, the first fixing mechanism and the second fixing mechanism have the same structure and are arranged in a mirror-symmetrical manner in the horizontal direction. The first fixing mechanism includes a horizontal moving part, a vertical moving part, a moving seat, a clamping chuck and a first driving member. The horizontal moving part is arranged on the machine tool body in the horizontal direction, the vertical moving part is arranged on the horizontal moving part, the moving seat is arranged on the vertical moving part, the clamping chuck is arranged on the side wall of the moving seat, the first driving member is arranged in the moving seat and drives the clamping chuck to rotate, a through hole is provided in the middle of the clamping chuck, and an inlet and outlet is provided on the side of the moving seat away from the clamping chuck, and the workpiece slides through the inlet and outlet and the through hole.

[0010] By adopting the above technical solution, the workpiece moves through the inlet and outlet of the moving seat and the through-holes of the clamping chuck, thereby being able to pass through the first fixing mechanism and the second fixing mechanism. The clamping chuck can clamp and fix the workpiece. The horizontal moving part drives the moving seat to move in the horizontal direction through the vertical moving part. The moving seat drives the workpiece to be loaded and unloaded through the clamping chuck. When the workpiece is loaded, the first driving part drives the clamping chuck to rotate, thereby driving the workpiece to rotate. At the same time, the vertical moving part can drive the moving seat to move up and down, thereby adjusting the height position of the workpiece, which is convenient for the processing mechanism to process the workpiece.

[0011] Preferably, the processing mechanism includes an X-axis moving part, a Y-axis moving part, a rotating part, a second driving member and a tool, the X-axis moving part is slidably arranged on the machine tool body, the Y-axis moving part is slidably arranged on the X-axis moving part along a sliding direction perpendicular to the X-axis moving part, the rotating part is rotatably arranged on the Y-axis moving part, the tool is rotatably arranged at the bottom end of the rotating part, and the second driving member is arranged in the rotating part and is transmission-connected to the tool.

[0012] By adopting the above technical solution, when the workpiece is loaded, the X-axis moving part and the Y-axis moving part drive the rotating part to move in the horizontal plane, the rotating part drives the blade to move in the horizontal plane, and the second driving part drives the tool to rotate, thereby processing the workpiece. At the same time, the rotating part can rotate on the Y-axis driving part, and the rotating part drives the tool to rotate, so that the tool can process the workpiece in multiple directions.

[0013] Preferably, the rotating part is arranged at an angle, and the rotating axis of the rotating part is inclined at 45° along the vertical direction.

[0014] By adopting the above technical solution, the rotating axis of the rotating part is tilted 45 degrees in the vertical direction, so that the range of rotation and adjustment of the tool is larger.

[0015] Preferably, the feeding mechanism includes a feeding rack, a feeding belt, a third driving member and a plurality of feeding rollers, the plurality of feeding rollers are rotatably arranged in the feeding rack, the feeding belt is rotatably sleeved on the plurality of feeding rollers, the third driving member is arranged on the feeding rack, the driving end of the third driving member is transmission-connected to the feeding roller, and the top surface of the feeding belt is flush with the inlet and outlet.

[0016] By adopting the above technical solution, the workpiece is placed on the feed belt, and the third driving member on the feed frame drives the feed roller to rotate, and the feed roller drives the feed belt to move, so that the feed belt drives the workpiece to move from the inlet and outlet through the first fixing mechanism.

[0017] Preferably, a limit strip is provided on the feed rack above the feed belt along the length direction of the feed belt, and two limit strips are provided at intervals along the width direction of the feed belt, and both limit strips point to the inlet and outlet and abut and limit the two sides of the workpiece in the diameter direction.

[0018] By adopting the above technical solution, the workpiece is placed between the two limit bars. When the feed belt moves, the two limit bars limit and abut the workpiece, so that the workpiece will not roll during the transmission process, thereby facilitating the workpiece to accurately pass through the first fixing mechanism.

[0019] Preferably, the clamping and discharging mechanism includes a discharging rack, an upper conveyor belt assembly, a lower conveyor belt assembly and a lifting member, the lower conveyor belt assembly is arranged on the discharging rack, and the top surface of the lower conveyor belt assembly is flush with the inlet and outlet, the upper conveyor belt assembly is slidably arranged on the discharging rack in the vertical direction and is located directly above the lower conveyor belt assembly, the lifting member is arranged on the discharging rack, the lifting end of the lifting member is fixedly connected to the upper conveyor belt assembly and drives the upper conveyor belt assembly to rise and fall and slide, and the upper conveyor belt assembly and the lower conveyor belt assembly clamp and convey the workpiece.

[0020] By adopting the above technical solution, when unloading the workpiece, the first fixing mechanism drives the workpiece to move to the lower conveyor belt assembly, and the first fixing mechanism then releases the fixation of the workpiece. At this time, the lifting member drives the upper conveyor belt assembly to descend, and the upper conveyor belt assembly moves to abut the workpiece and cooperates with the lower conveyor belt assembly to clamp the workpiece. Finally, the upper conveyor belt assembly and the lower conveyor belt assembly work together to drive the workpiece to be automatically unloaded.

[0021] Preferably, a guide rod is provided at the bottom of the upper conveyor belt assembly, and the guide rod is slidably arranged in the discharge rack along the vertical direction.

[0022] By adopting the above technical solution, when the lifting member drives the upper conveyor belt assembly to move up and down, the upper conveyor belt assembly drives the guide rod to move in the discharge rack, and the guide rod limits the movement of the upper conveyor belt assembly, thereby making the lifting and lowering movement of the upper conveyor belt assembly more stable.

[0023] Preferably, Fengqin protective covers are provided on both sides of the processing mechanism, the first fixing mechanism and the second fixing mechanism on the machine tool body.

[0024] By adopting the above technical solution, when the processing mechanism, the first fixing mechanism and the second fixing mechanism move, the Fengqin protective cover is adapted to extend and retract and shield the machine tool body, thereby reducing safety hazards that occur during the processing process.

[0025] In summary, this application includes at least one of the following beneficial technical effects:

[0026] 1. By adopting the first fixing mechanism, the second fixing mechanism, the feeding mechanism and the clamping and discharging mechanism, the workpiece can pass through the first fixing mechanism and the second fixing mechanism, and the first fixing mechanism and the second fixing mechanism can clamp the workpiece and drive the workpiece to move. In combination with the feeding mechanism and the clamping and discharging mechanism, the workpiece can be automatically loaded and unloaded, thereby improving the work efficiency of workpiece loading and unloading. At the same time, the first fixing mechanism and the second fixing mechanism, in addition to serving as the clamping and fixing device for the workpiece, can also assist in loading and unloading the workpiece, thereby reducing the use cost of the CNC machine tool body;

[0027] 2. The tool is rotated by a rotating part inclined at 45 degrees, so that the tool can process the workpiece in multiple directions;

[0028] 3. By using two limiting bars to limit and abut the workpiece, the workpiece will not roll during the conveying process, thereby facilitating the workpiece to accurately pass through the first fixing mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 This is a schematic diagram of the overall structure of the five-axis CNC machine tool for processing cylindrical workpieces in this application;

[0030] Figure 2 This is a partial structural diagram of the five-axis CNC machine tool for processing cylindrical workpieces in the present application, highlighting the processing mechanism;

[0031] Figure 3 This is a partial structural diagram of the five-axis CNC machine tool for processing cylindrical workpieces in the present application, highlighting the first fixing mechanism;

[0032] Figure 4 This is a partial structural diagram of the five-axis CNC machine tool for processing cylindrical workpieces in this application, highlighting the feeding mechanism and the clamping and discharging mechanism.

[0033] Explanation of the accompanying symbols: 1. Machine tool body; 2. Processing mechanism; 21. X-axis moving part; 22. Y-axis moving part; 23. Rotating part; 24. Tool; 3. First fixing mechanism; 31. Horizontal moving part; 32. Vertical moving part; 33. Moving seat; 34. Clamping chuck; 4. Second fixing mechanism; 5. Feeding mechanism; 51. Feeding rack; 52. Feeding belt; 53. Third driving member; 54. Feeding roller; 6. Clamping and discharging mechanism; 61. Discharging rack; 62. Upper conveyor belt assembly; 63. Lower conveyor belt assembly; 64. Lifting member; 7. Perforation; 8. Inlet and outlet; 9. Limiting bar; 10. Guide rod; 11. Fengqin protective cover. DETAILED DESCRIPTION

[0034] The following is combined with Figure 1-4 This application is described in further detail.

[0035] The embodiment of the present application discloses a five-axis CNC machine tool for machining cylindrical workpieces.

[0036] Reference Figure 1A five-axis CNC machine tool for processing cylindrical workpieces includes a machine body 1, a processing mechanism 2, a first fixing mechanism 3, a second fixing mechanism 4, a feeding mechanism 5, and a clamping and discharging mechanism 6. The processing mechanism 2 is mounted on the top of the machine body 1 for multi-position movement. The first fixing mechanism 3 and the second fixing mechanism 4 are both mounted on a side wall of the machine body 1 in the width direction. The first fixing mechanism 3 and the second fixing mechanism 4 have the same structure and are mounted in mirror symmetry with the vertical surface in the width direction of the machine body 1 as the base surface. The feeding mechanism 5 is located on the side of the first fixing mechanism 3 away from the second fixing mechanism 4, and the clamping and discharging mechanism 6 is located on the side of the second fixing mechanism 4 away from the first fixing mechanism 3.

[0037] The feeding mechanism 5 transports the cylindrical workpiece into the first fixing mechanism 3 and allows the workpiece to pass through the first fixing mechanism 3. The second fixing mechanism 4 moves toward the first fixing mechanism 3 and clamps and fixes the end of the workpiece. The second fixing mechanism 4 moves to reset and pulls the workpiece to automatically load. The first fixing mechanism 3 then clamps and fixes the other end of the workpiece. The first fixing mechanism 3 and the second fixing mechanism 4 drive the workpiece to rotate, and the processing mechanism 2 processes the workpiece. After the workpiece is processed, the second fixing mechanism 4 first releases the fixation of the workpiece. The first fixing mechanism 3 moves toward the second fixing mechanism 4, so that the workpiece passes through the second fixing mechanism 4 and moves into the clamping and discharging mechanism 6. The first fixing mechanism 3 then releases the fixation of the workpiece. The clamping and discharging mechanism 6 drives the workpiece out of the first fixing mechanism 3 and the second fixing mechanism 4, thereby automatically unloading the workpiece.

[0038] By using the first fixing mechanism 3, the second fixing mechanism 4, the feeding mechanism and the clamping and discharging mechanism 6, the workpiece can pass through the first fixing mechanism 3 and the second fixing mechanism 4. The first fixing mechanism 3 and the second fixing mechanism 4 can clamp the workpiece and drive the workpiece to move. Combined with the feeding mechanism 5 and the clamping and discharging mechanism 6, the workpiece can be automatically loaded and unloaded, thereby improving the work efficiency of workpiece loading and unloading. At the same time, in addition to serving as the clamping and fixing device for the workpiece, the first fixing mechanism 3 and the second fixing mechanism 4 can also assist in loading and unloading the workpiece, thereby reducing the use cost of the CNC machine tool body 1.

[0039] Reference Figure 1 and 2Specifically, the processing mechanism 2 includes an X-axis moving part 21, a Y-axis moving part 22, a rotating part 23, a second driving member and a tool 24. The X-axis moving part 21 is slidably mounted on the machine tool body 1 along the length direction of the machine tool body 1, and the Y-axis moving part 22 is slidably mounted on the X-axis moving part 21 along the width direction of the machine tool. The Y-axis moving part 22 is composed of a sliding block and a rotating seat. The sliding block is slidably mounted on the X-axis moving part 21, and the rotating seat is fixedly mounted on the sliding block. The bottom surface of the rotating seat is inclined 45° in the vertical direction, the rotating part 23 is rotatably mounted on the bottom surface of the rotating seat, and the rotation axis of the rotating part 23 is perpendicular to the bottom surface of the rotating seat. The second driving member is fixedly mounted in the rotating part 23, the tool 24 is rotatably mounted at the bottom end of the rotating part 23, and the tool 24 is fixedly connected to the driving shaft of the second driving member. In this application, the second driving member can be optionally used as a servo motor.

[0040] The X-axis moving portion 21 and the Y-axis moving portion 22 are driven by a motor and a lead screw, thereby driving the tool 24 to freely move within the horizontal plane via the rotating portion 23. The rotating portion 23 rotates via a motor and a reducer, thereby rotating the tool 24. Once the workpiece is loaded, a second drive element rotates the tool 24, allowing it to process the workpiece. The tool 24's ability to move and rotate significantly expands its processing range.

[0041] Reference Figure 1 and 4 Specifically, the feeding mechanism 5 includes a feeding frame 51, a feeding belt 52, a third driving member 53, and five feeding rollers 54. The five feeding rollers 54 are rotatably mounted within the feeding frame 51 at equal intervals along the length of the feeding frame 51. The feeding belt 52 is sleeved over the five feeding rollers 54, and the outer walls of the feeding rollers 54 engage with the inner walls of the feeding belt 52. The third driving member 53 is fixedly mounted on the outer wall of the feeding frame 51, and the driving end of the third driving member 53 is fixedly connected to the rotating shaft of one of the feeding rollers 54. In the present application, the third driving member 53 can optionally be a servo motor.

[0042] The cylindrical workpiece is placed on the feed belt 52. The third drive member 53 drives the feed belt 52 via the feed roller 54, which in turn drives the workpiece toward the first fixing mechanism 3. Simultaneously, two limit bars 9 are fixedly mounted on the feed frame 51 via connecting rods. The limit bars 9 are installed along the length of the feed frame 51 and above the feed belt 52. The two limit bars 9 are installed at intervals along the width of the feed frame 51. The cylindrical workpiece is placed between the two limit bars 9. During the workpiece's conveyance, the two limit bars 9 abut against each other on both sides of the workpiece's diameter to prevent rotational deviation during conveyance.

[0043] Reference Figure 1 and 2Specifically, the first fixing mechanism 3 includes a horizontal moving part 31, a vertical moving part 32, a moving seat 33, a clamping chuck 34 and a first driving member. The horizontal moving part 31 is mounted on the side wall of the machine tool body 1 in a sliding manner in the horizontal direction, the vertical moving part 32 is mounted on the outer side wall of the horizontal moving part 31 in a sliding manner in the vertical direction, the moving seat 33 is fixedly mounted on the top of the vertical moving part 32, and the clamping chuck 34 is fixedly mounted on one side wall of the moving part. The other side wall of the moving part away from the clamping chuck 34 is provided with a feed and discharge port 8, and a circular through-hole 7 is provided in the middle of the clamping chuck 34. In the present application, the clamping chuck 34 can be selected as a starting four-jaw chuck, and the first driving member can be selected as a servo motor. The first driving member drives the clamping chuck 34 to rotate through a transmission belt or a transmission gear.

[0044] Reference Figure 3 and 4 The top surface of the feed belt 52 is located in the same horizontal plane as the feed port 8 and the through-hole 7. The feed mechanism 5 conveys the workpiece through the feed port 8 and the through-hole 7 in sequence, allowing the workpiece to pass through the first fixing mechanism 3 or the second fixing mechanism 4. When the jaw chuck 34 clamps the workpiece, it secures the workpiece. The horizontal moving portion 31 then drives the movable base 33 to move via the vertical moving portion 32, thereby automatically loading and unloading the workpiece. When the workpiece is loaded, the vertical moving portion 32 drives the movable base 33 to rise and fall, thereby driving the workpiece up and down. The first driving member drives the jaw chuck 34 to rotate, thereby driving the workpiece to rotate.

[0045] Reference Figure 1 、 3 Specifically, the clamping and discharging mechanism 6 includes a discharging frame 61, an upper conveyor belt assembly 62, a lower conveyor belt assembly 63, and six lifting members 64. The lower conveyor belt assembly 63 is fixedly mounted on the discharging frame 61, and the six lifting members 64 are fixedly mounted on both sides of the discharging frame 61 in the width direction. The upper conveyor belt assembly 62 is fixedly mounted at the lifting ends of the six lifting members 64 and is located directly above the lower conveyor belt assembly 63. The top surface of the lower conveyor belt assembly 63 is located in the same horizontal plane as the feed port 8 and the through hole 7. In this application, the lifting member 64 can be optionally implemented as a hydraulic cylinder.

[0046] When the workpiece is processed, it is transported to the lower conveyor belt assembly 63 by the first fixing mechanism 3. At this time, the bottom surface of the upper conveyor belt assembly 62 is not in contact with the workpiece. When the workpiece is transported and the clamping chuck 34 of the first fixing mechanism 3 releases the fixation of the workpiece, the six lifting members 64 drive the upper conveyor belt assembly 62 to descend, and make the upper conveyor belt assembly 62 and the lower conveyor belt assembly 63 clamp the workpiece. The upper conveyor belt assembly 62 and the lower conveyor belt assembly 63 can automatically unload the workpiece when they run at the same time.

[0047] Six guide rods 10 are fixedly mounted vertically on the bottom wall of the outer frame of the upper conveyor belt assembly 62, and each guide rod 10 is adapted to slide vertically within the discharge rack 61. As the upper conveyor belt assembly 62 moves up and down, it drives the guide rods 10 to move within the discharge rack 61. The guide rods 10 limit the movement of the upper conveyor belt assembly 62, making the upper conveyor belt assembly 62 more stable when it moves up and down.

[0048] Reference Figure 1 A Fengqin protective cover 11 is fixedly installed on both sides of the machine tool body 1 located at the processing mechanism 2, the first fixing mechanism 3 and the second fixing mechanism 4. When the processing mechanism 2, the first fixing mechanism 3 and the second fixing mechanism 4 move, the Fengqin protective cover 11 is adapted to retract and extend and shield the machine tool body 1, thereby reducing safety hazards that occur during the processing process.

[0049] The implementation principle of the embodiment of the present application is as follows: the cylindrical workpiece is placed on the feeding belt 52, and the third driving member 53 drives the feeding belt 52 to move through the feeding roller 54. The feeding belt 52 drives the workpiece to move toward the first fixing mechanism 3, and the workpiece passes through the first fixing mechanism 3 through the inlet and outlet 8 and the through-hole 7. The second fixing mechanism 4 first moves and clamps the end of the workpiece, and then moves to reset and pulls the workpiece to automatically load; the first fixing mechanism 3 then clamps the other end of the fixed workpiece, and the first fixing mechanism 3 and the second fixing mechanism 4 drive the workpiece to rotate, and the processing mechanism 2 processes the workpiece; after the workpiece is processed, the second fixing mechanism 4 first releases the fixation of the workpiece, and the first fixing mechanism 3 moves toward the second fixing mechanism 4, so that the workpiece passes through the second fixing mechanism 4 and moves into the clamping and discharging mechanism 6, and the six lifting members 64 drive the upper conveyor belt assembly 62 to descend, and make the upper conveyor belt assembly 62 and the lower conveyor belt assembly 63 clamp the workpiece. The upper conveyor belt assembly 62 and the lower conveyor belt assembly 63 can automatically unload the workpiece when they run simultaneously. By using the first fixing mechanism 3, the second fixing mechanism 4, the feeding mechanism and the clamping and discharging mechanism 6, the workpiece can pass through the first fixing mechanism 3 and the second fixing mechanism 4. The first fixing mechanism 3 and the second fixing mechanism 4 can clamp the workpiece and drive the workpiece to move. Combined with the feeding mechanism 5 and the clamping and discharging mechanism 6, the workpiece can be automatically loaded and unloaded, thereby improving the work efficiency of workpiece loading and unloading. At the same time, in addition to serving as the clamping and fixing device for the workpiece, the first fixing mechanism 3 and the second fixing mechanism 4 can also assist in loading and unloading the workpiece, thereby reducing the use cost of the CNC machine tool body 1.

[0050] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A five-axis CNC machine tool for processing cylindrical workpieces, characterized in that: The invention comprises a machine tool body (1), a processing mechanism (2) movably arranged on the machine tool body (1) and processing a workpiece, a first fixing mechanism (3) and a second fixing mechanism (4) movably arranged on the machine tool body (1) and clamping and fixing the workpiece, a feeding mechanism (5) and a clamping and discharging mechanism (6) located on both sides of the first fixing mechanism (3) and the second fixing mechanism (4) away from each other; the feeding mechanism (5) conveys the workpiece through the first fixing mechanism (3), the second fixing mechanism (4) moves in a first fixing direction and clamps the end of the workpiece, and the second fixing mechanism (6) The mechanism (4) moves to reset and pulls the workpiece to automatically load, the first fixing mechanism (3) clamps and fixes the workpiece and cooperates with the second fixing mechanism (4) to drive the workpiece to rotate; when the workpiece is processed, the second fixing mechanism (4) is released, the first fixing mechanism (3) moves toward the second fixing mechanism (4), the first fixing mechanism (3) drives the workpiece to slide through the second fixing mechanism (4) and moves the workpiece to the clamping and discharging mechanism (6), the first fixing mechanism (3) is released, and the clamping and discharging mechanism (6) clamps the workpiece and automatically discharges it; The first fixing mechanism (3) and the second fixing mechanism (4) have the same structure and are arranged in a mirror-symmetrical manner in the horizontal direction. The first fixing mechanism (3) includes a horizontal moving part (31), a vertical moving part (32), a moving seat (33), a clamping chuck (34) and a first driving member. The horizontal moving part (31) is arranged on the machine tool body (1) in the horizontal direction, the vertical moving part (32) is arranged on the horizontal moving part (31), the moving seat (33) is arranged on the vertical moving part (32), the clamping chuck (34) is arranged on the side wall of the moving seat (33), the first driving member is arranged in the moving seat (33) and drives the clamping chuck (34) to rotate, a through hole (7) is provided in the middle of the clamping chuck (34), and an inlet and outlet (8) is provided on the side of the moving seat (33) away from the clamping chuck (34), and the workpiece slides through the inlet and outlet (8) and the through hole (7); The machining mechanism (2) comprises an X-axis moving part (21), a Y-axis moving part (22), a rotating part (23), a second driving member and a tool (24); the X-axis moving part (21) is slidably arranged on the machine tool body (1); the Y-axis moving part (22) is slidably arranged on the X-axis moving part (21) along a sliding direction perpendicular to the X-axis moving part (21); the rotating part (23) is rotatably arranged on the Y-axis moving part (22); the tool (24) is rotatably arranged at the bottom end of the rotating part (23); and the second driving member is arranged in the rotating part (23) and is transmission-connected to the tool (24).

2. A five-axis CNC machine tool for processing cylindrical workpieces according to claim 1, characterized in that: The rotating part (23) is arranged tilted, and the rotating axis of the rotating part (23) is tilted 45 degrees in the vertical direction.

3. The five-axis CNC machine tool for processing a columnar workpiece according to claim 1, characterized in that: The feeding mechanism (5) comprises a feeding frame (51), a feeding belt (52), a third driving member (53) and a plurality of feeding rollers (54), wherein the plurality of feeding rollers (54) are rotatably arranged in the feeding frame (51), the feeding belt (52) is rotatably sleeved on the plurality of feeding rollers (54), the third driving member (53) is arranged on the feeding frame (51), the driving end of the third driving member (53) is transmission-connected to the feeding rollers (54), and the top surface of the feeding belt (52) is flush with the inlet and outlet (8).

4. The five-axis CNC machine tool for processing a columnar workpiece according to claim 3, characterized in that: A limiting strip (9) is provided on the feeding rack (51) above the feeding belt (52) along the length direction of the feeding belt (52), and two limiting strips (9) are provided at intervals along the width direction of the feeding belt (52), and both limiting strips (9) point toward the inlet and outlet port (8) and abut against and limit the two sides of the workpiece in the diameter direction.

5. The five-axis CNC machine tool for processing a columnar workpiece according to claim 1, characterized in that: The clamping and discharging mechanism (6) comprises a discharging frame (61), an upper conveyor belt assembly (62), a lower conveyor belt assembly (63) and a lifting member (64); the lower conveyor belt assembly (63) is arranged on the discharging frame (61), and the top surface of the lower conveyor belt assembly (63) is flush with the inlet and outlet (8); the upper conveyor belt assembly (62) is slidably arranged on the discharging frame (61) in a vertical direction and is located directly above the lower conveyor belt assembly (63); the lifting member (64) is arranged on the discharging frame (61); the lifting end of the lifting member (64) is fixedly connected to the upper conveyor belt assembly (62) and drives the upper conveyor belt assembly (62) to rise and slide; and the upper conveyor belt assembly (62) and the lower conveyor belt assembly (63) clamp and convey the workpiece.

6. The five-axis CNC machine tool for processing a columnar workpiece according to claim 5, characterized in that: A guide rod (10) is provided at the bottom of the upper conveyor belt assembly (62), and the guide rod (10) is slidably arranged in the discharge rack (61) along the vertical direction.

7. The five-axis CNC machine tool for processing a columnar workpiece according to claim 1, characterized in that: Fengqin protective covers (11) are provided on both sides of the processing mechanism (2), the first fixing mechanism (3) and the second fixing mechanism (4) on the machine tool body (1).

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