Grinding machining center capable of achieving multi-station rapid tool changing

Abstract

The invention relates to the field of machining, and discloses a multi-station quick tool changing grinding center which comprises a main body, a segmented grinding mechanism, a quick tool changing mechanism and a synchronous cooling mechanism. A machining table is fixedly arranged at the top of the main body, and limiting tables are fixedly arranged on the two sides of the top of the machining table. By arranging a quick tool changing mechanism, a rotating rod can be driven to rotate when a connecting shaft rotates, so that a grinding motor and different tools at the other end of the rotating rod start to rotate until the tools at the other end are vertically downward, and at the moment, an electric telescopic rod is shortened again to drive a sliding block and a movable rod to reset; and at the moment, when the driving gear is in contact with the elastic clamping teeth, the elastic clamping teeth are retracted, so that the driving gear stops rotating when moving downwards, the stability of the tool when moving downwards is guaranteed, and by arranging tools of different models, rapid tool changing of the grinding machining center can be achieved, and the machining efficiency is effectively improved.

Description

Technical Field

[0001] The invention relates to the field of mechanical processing, in particular to a grinding processing center capable of multi-station rapid tool change. Background Art

[0002] A machining center is a high-precision automated machine tool that integrates multiple technologies such as mechanics, electronics, hydraulics, pneumatics, and computers. It can perform multiple processes on a workpiece that is clamped at one time. A grinding machining center is a common type of machining center. It is a high-precision, high-efficiency machining technology that uses a high-speed rotating tool or grinding wheel to grind the surface of the workpiece to remove unnecessary materials and obtain the desired shape and accuracy.

[0003] The existing grinding machining center cannot quickly change tools during multi-station processing, which has low efficiency. Different tools have different corresponding rotation speeds, and the heat generated when in contact with the workpiece is also different. The coolant flow required for processing different tools is also inconsistent. The current grinding machining center cannot adjust the coolant flow in real time, which affects the processing effect. Therefore, a grinding machining center with multi-station fast tool change is proposed. Summary of the invention

[0004] The present invention aims to solve the technical problem that the existing grinding machining center cannot quickly change tools when performing multi-station processing, the efficiency is low, and the rotational speeds corresponding to different tools are also different, and the heat generated when in contact with the workpiece is also different. The coolant flow rate required for processing different tools is also inconsistent. The current grinding machining center liquid cannot adjust the coolant flow rate in real time, which affects the processing effect. A grinding machining center with multi-station rapid tool change is provided.

[0005] The technical solution adopted by the present invention to solve its technical problem is: A grinding processing center capable of multi-station rapid tool change, comprising a main body, a segmented grinding mechanism, a rapid tool change mechanism and a synchronous cooling mechanism; A processing table is fixedly arranged on the top of the main body, and limiting tables are fixedly arranged on both sides of the top of the processing table. A limiting groove is provided on the top of the limiting table, and a workpiece is arranged inside the limiting groove. The workpiece is horizontally arranged inside the limiting groove. A driving motor is detachably connected to the left end of the workpiece, and a plurality of rollers are rotatably arranged on the inner wall of the limiting groove, and the rollers are coaxially arranged with the workpiece. The driving motor is fixedly arranged on the left side of the top of the processing table, and a fixed block is detachably arranged on the middle part of the workpiece, and the fixed block is fixedly connected to the processing table. The segmented grinding mechanism is arranged on the tops of both sides of the workpiece, the quick tool changing mechanism is arranged on the side of the segmented grinding mechanism, and the synchronous cooling mechanism is arranged in the middle part of the lower side of the segmented grinding mechanism. A plurality of supports are fixedly arranged on the bottom of the main body. During processing, the workpiece is placed in the limit groove on the top of the limit table, the workpiece is limited by the fixed block, and then the left end of the workpiece is connected to the output end of the drive motor. The drive motor is started to make the workpiece start to rotate. The roller inside the limit groove can reduce the friction generated when the workpiece rotates. The workpiece can be ground at multiple positions at the same time through the segmented grinding mechanism. After the preliminary processing is completed, the grinding tool can be replaced through the quick tool changing mechanism to further process the workpiece. While changing the tool, the flow of the coolant is synchronously adjusted through the synchronous cooling mechanism to improve the processing effect.

[0006] Furthermore, the segmented grinding mechanism includes a plurality of bases, which are symmetrically arranged on both sides of the workpiece, the bases are arranged perpendicularly to the processing table, the bottom of the base is connected with a sliding seat, the sliding seat is slidably connected to the top of the processing table, the sliding direction of the sliding seat is parallel to the axis of the workpiece, the top of the base is fixedly provided with an outer rod, and a movable rod is connected between the side walls facing the outer rod, and the movable rod is arranged perpendicularly to the outer rod. During processing, the sliding seat is slid according to the processing position, and when the sliding seat moves, the base is driven to move, and when the base moves, the outer rod on the upper part of the base is driven to move, and when the outer rod moves, the outer rod and the base opposite to it are driven to move through the movable rod.

[0007] Furthermore, a slide groove is provided at the connection between the movable rod and the outer rod, a slide cavity is provided inside the outer rod, a slider is slidably provided inside the slide cavity, the end of the movable rod extends to the inside of the slide groove and is fixedly connected to the slider, a bottom cavity is provided inside the base, an electric telescopic rod is connected to the inside of the bottom cavity, the electric telescopic rod is vertically arranged with the movable rod, the top movable end of the electric telescopic rod extends to the inside of the slide cavity, and the top movable end of the electric telescopic rod is fixedly connected to the slider. After the processing position is adjusted, the electric telescopic rod is started to shorten the electric telescopic rod, driving the slider at the top of the electric telescopic rod to move downward, so that the movable rod connected to the slider moves downward.

[0008] Furthermore, a connecting shaft is rotatably connected between the middle ends of the movable rods, the connecting shaft is arranged parallel to the workpiece, both ends of the connecting shaft are fixedly connected to a rotating rod, the rotating rod is arranged perpendicularly to the connecting shaft, both ends of the rotating rod are perpendicularly connected to a fixed rod, the outer end of the fixed rod is fixedly connected to a mounting block, the outer side of the mounting block is fixedly provided with a grinding motor, the output end of the grinding motor is connected to a driving shaft, the other end of the driving shaft is connected to a tool holder, and the tool holder is detachably provided with a tool on the side away from the driving shaft. When the movable rod moves downward, it drives the connecting shaft to move downward, so that the rotating rods at both ends of the connecting shaft move downward, when the rotating rod moves downward, it drives the fixed rod and the mounting block to move downward, when the mounting block moves, it drives the grinding motor to move downward, when the grinding motor moves, it drives the driving shaft and the tool holder to move downward accordingly, so that the tool on the other side of the tool holder moves downward accordingly, until the tool moves to the processing position and stops, at which time the grinding motor is started, so that the driving shaft starts to rotate, drives the tool holder and the tool to rotate accordingly, and performs segmented grinding processing on the workpiece.

[0009] Furthermore, the quick tool-changing mechanism includes elastic latch teeth, which are evenly arranged on a side wall where the outer rod is connected to the movable rod, and a gear shaft is rotatably connected to the side wall of one end of the movable rod close to the elastic latch teeth, and the gear shaft is vertically arranged with the movable rod, and a driving gear is connected to the inner end of the gear shaft, and the driving gear is coaxially arranged with the gear shaft, and the driving gear is meshed with the elastic latch teeth. After the preliminary processing is completed, when changing the tool, the electric telescopic rod is extended, driving the slider to move upward, and when the slider moves upward, it drives the movable rod to move upward, so that the driving gear moves upward, and when the driving gear moves upward, the elastic latch teeth pop out and mesh with the driving gear, so that the driving gear starts to rotate, and when the driving gear rotates, it drives the gear shaft to rotate.

[0010] Furthermore, the other end of the gear shaft is connected to a driving wheel, and a driven wheel is arranged in the middle of the connecting shaft. The driven wheel is arranged coaxially with the connecting shaft, and a transmission belt is sleeved between the driven wheel and the driving wheel, and the transmission belt is meshed and connected with the driven wheel and the driving wheel respectively. When the gear shaft rotates, the driving wheel at the other end is driven to start rotating, so that the driven wheel meshed with it through the transmission belt starts to rotate, and drives the connecting shaft to start rotating. When the connecting shaft rotates, it drives the rotating rod to start rotating, so that the grinding motor and different tools at the other end of the rotating rod start to rotate, until the tool at the other end is vertically downward, at which time the electric telescopic rod is shortened again, driving the slider and the movable rod to reset, and repeating the above steps can realize further processing of the workpiece. At this time, when the driving gear contacts the elastic clamping teeth, the elastic clamping teeth are retracted, so that the driving gear stops rotating when it moves downward, ensuring the stability of the tool when it moves downward.

[0011] Furthermore, the rotation range of the rotating rod is 0°-180°, and the two groups of the grinding motors, the drive shaft, the tool holder and the tool at both ends of the rotating rod are symmetrically arranged around the connecting axis, and the tool has multiple models. By providing tools of different models, it is possible to achieve rapid tool change in the grinding machining center, effectively improving machining efficiency.

[0012] Furthermore, the synchronous cooling mechanism includes a cross bar, which is arranged on the opposite side walls of the base, and is arranged parallel to the movable rod. A cooling cylinder is fixedly arranged in the middle of the cross bar, and the top input end pipeline of the cooling cylinder is connected to a coolant input pipe, and the input end pipeline of the coolant input pipe is connected to a liquid pump, and the bottom output end pipeline of the cooling cylinder is connected to a coolant output pipe, and the output end pipeline of the coolant output pipe is connected to a universal nozzle, and the output end of the universal nozzle faces the abutment between the tool and the workpiece. During processing, coolant is pumped into the cooling cylinder by a liquid pump, and the coolant is sprayed along the coolant output pipe along the universal nozzle to cool the tool and the workpiece.

[0013] Further, the middle part of the cooling cylinder is rotatably connected with a rotating part, the rotating part is coaxially arranged with the cooling cylinder, the outer wall of the rotating part is fixedly provided with an external gear, the outer wall of the driving shaft is fixedly provided with a baffle, the middle part of the outer wall of the driving shaft is slidably sleeved with a driving bevel gear through the baffle, the driving bevel gear is meshed with a first transmission bevel gear toward the outer edge of one side of the cooling cylinder, the center of the first transmission bevel gear is fixedly connected with a transmission shaft, the transmission shaft is arranged parallel to the workpiece, the middle part of the transmission shaft is connected to the outer wall of the cooling cylinder through a connecting frame, the other end of the transmission shaft is connected with a second transmission bevel gear, and the second transmission bevel gear is meshed with the external gear. When the driving shaft rotates, the driving bevel gear is driven to move accordingly, and when the driving bevel gear rotates, the first transmission bevel gear meshed with it is driven to start rotating, and when the first transmission bevel gear rotates, the transmission shaft is driven to start rotating, so that the second transmission bevel gear connected to the other end of the transmission shaft starts rotating, and when the second transmission bevel gear rotates, the external gear meshed with it is driven to start rotating, so that the rotating part in the middle part of the cooling cylinder starts rotating.

[0014] Furthermore, a plurality of baffles are evenly arranged inside the rotating part around the axis of the cooling cylinder, the baffles are arranged perpendicularly to the cooling cylinder, a sliding rod is vertically arranged in the middle of the outer edge of the baffle, a sliding rail is provided at the connection between the sliding rod and the inner wall of the cooling cylinder, the sliding rail is radially arranged around the axis of the cooling cylinder, and a spring is connected between the side wall of the sliding rod and the sliding rail. When the rotating part rotates, the baffle moves with it, causing the baffle to generate centrifugal force, driving the slide bar to start moving toward the outer end of the slide rail, and the spring is compressed to generate elastic force in the opposite direction. At this time, the baffle opens, allowing coolant to pass through. After the tool is changed, the speed of the drive shaft and the drive bevel gear changes, causing the speed of the first transmission bevel gear connected thereto to change accordingly, driving the speed of the transmission shaft and the second transmission bevel gear to change. At this time, the speed of the outer gear and the rotating part changes accordingly, and the centrifugal force on the baffle changes, causing the opening amplitude of the baffle under the elastic force of the spring to change, thereby changing the flow rate of the coolant. The synchronous adjustment of the coolant flow based on the different speeds of different tools is realized, which can effectively reduce the waste of coolant and improve the cooling effect.

[0015] Beneficial effects of the present invention: 1. The grinding machining center of the present invention is provided with a quick tool changing mechanism, which can drive the driving wheel at the other end to start rotating when the gear shaft rotates, so that the driven wheel meshing with it through the transmission belt starts to rotate, driving the connecting shaft to start rotating. When the connecting shaft rotates, it drives the rotating rod to start rotating, so that the grinding motor and different tools at the other end of the rotating rod start to rotate, until the tool at the other end is vertically downward, at which time the electric telescopic rod is shortened again, driving the slider and the movable rod to reset, and repeating the above steps to achieve further processing of the workpiece. At this time, when the driving gear contacts the elastic clamping tooth, the elastic clamping tooth is retracted, so that the driving gear stops rotating when it moves downward, thereby ensuring the stability of the tool when it moves downward. By providing tools of different types, quick tool change of the grinding machining center can be achieved, effectively improving the processing efficiency.

[0016] 2. The grinding machining center of the present invention is provided with a synchronous cooling mechanism, which can drive the baffle to move when the rotating part rotates, so that the baffle generates centrifugal force, driving the slide bar to start moving toward the outer end of the slide slot, and the spring is compressed to generate elastic force in the opposite direction. At this time, the baffle opens, allowing coolant to pass through. After the tool is changed, the rotation speed of the drive shaft and the driving bevel gear changes, so that the rotation speed of the first transmission bevel gear connected thereto changes accordingly, driving the rotation speed of the transmission shaft and the second transmission bevel gear to change. At this time, the rotation speed of the external gear and the rotating part changes accordingly, and the centrifugal force on the baffle changes, so that the opening amplitude of the baffle under the elastic force of the spring changes, thereby changing the flow rate of the coolant, thereby realizing the synchronous adjustment of the coolant flow rate based on different rotation speeds of different tools, which can effectively reduce the waste of coolant and improve the cooling effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is the overall structural diagram of the grinding processing center; Figure 2 This is a schematic diagram of the quick tool change mechanism of this grinding center; Figure 3 This is a schematic diagram of the synchronous cooling mechanism of this grinding center; Figure 4 It is a schematic diagram of the cross-sectional structure of the rotating part of this grinding machining center.

[0018] Description of the accompanying drawings: 1. main body; 2. processing table; 3. driving motor; 4. support; 5. limiting table; 6. workpiece; 7. fixed block; 8. base; 9. sliding seat; 10. outer rod; 11. connecting shaft; 12. movable rod; 13. sliding cavity; 14. bottom cavity; 15. electric telescopic rod; 16. slider; 17. slide groove; 18. elastic clamping tooth; 19. driving gear; 20. gear shaft; 21. driving wheel; 22. transmission belt; 23. driven wheel; 24. limiting groove; 25. rotating rod; 26. Grinding motor; 27. Driving shaft; 28. Driving bevel gear; 29. ​​Tool holder; 30. Tool; 31. Roller; 32. Fixing rod; 33. Mounting block; 34. Cross bar; 35. Cooling cylinder; 36. Coolant inlet pipe; 37. Rotating part; 38. External gear; 39. Coolant outlet pipe; 40. Universal nozzle; 41. Second transmission bevel gear; 42. Driving shaft; 43. First transmission bevel gear; 44. Connecting frame; 45. Baffle; 46. Slide rod; 47. Slide rail; 48. Spring. DETAILED DESCRIPTION

[0019] The concept and technical effects of the present invention will be clearly and completely described below in conjunction with embodiments to fully understand the purpose, features and effects of the present invention.

[0020] like Figure 1-4 As shown, a grinding processing center capable of multi-station rapid tool change includes a main body 1, a segmented grinding mechanism, a rapid tool change mechanism, and a synchronous cooling mechanism; A processing table 2 is fixedly arranged on the top of the main body 1, and limiting tables 5 are fixedly arranged on both sides of the top of the processing table 2. A limiting groove 24 is provided on the top of the limiting table 5, and a workpiece 6 is arranged inside the limiting groove 24. The workpiece 6 is horizontally arranged inside the limiting groove 24, and the left end of the workpiece 6 is detachably connected to a driving motor 3. A plurality of rollers 31 are rotatably arranged on the inner wall of the limiting groove 24, and the rollers 31 are coaxially arranged with the workpiece 6. The driving motor 3 is fixedly arranged on the left side of the top of the processing table 2, and a fixed block 7 is detachably arranged in the middle of the workpiece 6, and the fixed block 7 is fixedly connected to the processing table 2. The segmented grinding mechanism is arranged on the tops of both sides of the workpiece 6, the quick tool changing mechanism is arranged on the side of the segmented grinding mechanism, and the synchronous cooling mechanism is arranged in the middle of the lower side of the segmented grinding mechanism. A plurality of supports 4 are fixedly arranged on the bottom of the main body 1. During processing, the workpiece 6 is placed in the limiting groove 24 on the top of the limiting table 5, the workpiece 6 is limited by the fixing block 7, and then the left end of the workpiece 6 is connected to the output end of the driving motor 3, and the driving motor 3 is started to make the workpiece 6 start to rotate. The roller 31 inside the limiting groove 24 can reduce the friction generated when the workpiece 6 rotates. The workpiece 6 can be ground at multiple positions at the same time through the segmented grinding mechanism. After the preliminary processing is completed, the grinding tool 30 can be replaced by the quick tool changing mechanism to further process the workpiece 6. While changing the tool, the flow rate of the coolant is synchronously adjusted by the synchronous cooling mechanism to improve the processing effect.

[0021] The segmented grinding mechanism includes a plurality of bases 8, which are symmetrically arranged on both sides of the workpiece 6, and the bases 8 are arranged vertically to the processing table 2. The bottom of the base 8 is connected with a sliding seat 9, and the sliding seat 9 is slidably connected to the top of the processing table 2. The sliding direction of the sliding seat 9 is parallel to the axis of the workpiece 6. An outer rod 10 is fixedly arranged on the top of the base 8, and a movable rod 12 is connected between the side walls facing the outer rod 10, and the movable rod 12 is arranged vertically to the outer rod 10. During processing, the sliding seat 9 is slid according to the processing position, and when the sliding seat 9 moves, the base 8 is driven to move accordingly, and when the base 8 moves, the outer rod 10 on the upper part of the base 8 is driven to move accordingly, and when the outer rod 10 moves, the outer rod 10 and the base 8 opposite to it are driven to move accordingly through the movable rod 12.

[0022] A slide groove 17 is provided at the connection between the movable rod 12 and the outer rod 10, a slide cavity 13 is provided inside the outer rod 10, a slider 16 is slidably provided inside the slide cavity 13, the end of the movable rod 12 extends to the inside of the slide groove 17 and is fixedly connected to the slider 16, a bottom cavity 14 is provided inside the base 8, an electric telescopic rod 15 is connected inside the bottom cavity 14, the electric telescopic rod 15 is vertically arranged with the movable rod 12, the top movable end of the electric telescopic rod 15 extends to the inside of the slide cavity 13, and the top movable end of the electric telescopic rod 15 is fixedly connected to the slider 16. After the processing position is adjusted, the electric telescopic rod 15 is started, so that the electric telescopic rod 15 is shortened, driving the slider 16 at the top of the electric telescopic rod 15 to move downward, so that the movable rod 12 connected to the slider 16 moves downward.

[0023] A connecting shaft 11 is rotatably connected between the middle ends of the movable rod 12, and the connecting shaft 11 is arranged parallel to the workpiece 6. Both ends of the connecting shaft 11 are fixedly connected to rotating rods 25, and the rotating rods 25 are perpendicularly arranged to the connecting shaft 11. Both ends of the rotating rod 25 are perpendicularly connected to fixed rods 32, and the outer end of the fixed rod 32 is fixedly connected to a mounting block 33, and a grinding motor 26 is fixedly arranged on the outer side of the mounting block 33. The output end of the grinding motor 26 is connected to a driving shaft 27, and the other end of the driving shaft 27 is connected to a tool seat 29, and a tool 30 is detachably arranged on the side of the tool seat 29 away from the driving shaft 27. When the movable rod 12 moves downward, it drives the connecting shaft 11 to move downward, so that the rotating rods 25 at both ends of the connecting shaft 11 move downward, and when the rotating rods 25 move downward, they drive the fixed rod 32 and the mounting block 33 to move downward, and when the mounting block 33 moves, it drives the grinding motor 26 to move downward, and when the grinding motor 26 moves, it drives the driving shaft 27 and the tool holder 29 to move downward, so that the tool 30 on the other side of the tool holder 29 moves downward, until the tool 30 moves to the processing position and stops, at which time the grinding motor 26 is started, so that the driving shaft 27 starts to rotate, driving the tool holder 29 and the tool 30 to rotate, and the workpiece 6 is subjected to segmented grinding.

[0024] The quick tool-changing mechanism includes an elastic latch 18, which is evenly arranged on a side wall where the outer rod 10 is connected to the movable rod 12. The movable rod 12 is rotatably connected to a gear shaft 20 on one end of the side wall close to the elastic latch 18. The gear shaft 20 is vertically arranged with the movable rod 12. The inner end of the gear shaft 20 is connected with a driving gear 19, which is coaxially arranged with the gear shaft 20. The driving gear 19 is meshed and connected with the elastic latch 18. After the preliminary processing is completed, when changing the tool, the electric telescopic rod 15 is extended to drive the slider 16 to move upward. When the slider 16 moves upward, it drives the movable rod 12 to move upward, so that the driving gear 19 moves upward. When the driving gear 19 moves upward, the elastic latch 18 pops out and meshes with the driving gear 19, so that the driving gear 19 starts to rotate. When the driving gear 19 rotates, it drives the gear shaft 20 to rotate.

[0025] The other end of the gear shaft 20 is connected to a driving wheel 21, and a driven wheel 23 is arranged in the middle of the connecting shaft 11. The driven wheel 23 is arranged coaxially with the connecting shaft 11, and a transmission belt 22 is sleeved between the driven wheel 23 and the driving wheel 21. The transmission belt 22 is meshed and connected with the driven wheel 23 and the driving wheel 21 respectively. When the gear shaft 20 rotates, the driving wheel 21 at the other end starts to rotate, so that the driven wheel 23 meshing with it through the transmission belt 22 starts to rotate, and drives the connecting shaft 11 to start rotating. When the connecting shaft 11 rotates, it drives the rotating rod 25 to start rotating, so that the grinding motor 26 and different tools 30 at the other end of the rotating rod 25 start to rotate, until the tool 30 at the other end is vertically downward, at this time, the electric telescopic rod 15 is shortened again, driving the slider 16 and the movable rod 12 to reset, repeating the above steps, the workpiece 6 can be further processed, at this time, when the driving gear 19 contacts the elastic tooth 18, the elastic tooth 18 is retracted, so that the driving gear 19 stops rotating when it moves downward, ensuring the stability of the tool 30 when it moves downward.

[0026] The rotation range of the rotating rod 25 is 0°-180°, and the two groups of the grinding motors 26, the driving shaft 27, the tool holder 29 and the tool 30 at both ends of the rotating rod 25 are symmetrically arranged around the connecting shaft 11, and the tool 30 has various models. By providing tools 30 of different models, it is possible to achieve rapid tool change of the grinding machining center, effectively improving the machining efficiency.

[0027] The synchronous cooling mechanism includes a cross bar 34, which is arranged on the opposite side walls of the base 8, and is arranged parallel to the movable rod 12. A cooling cylinder 35 is fixedly arranged in the middle of the cross bar 34, and the top input end pipeline of the cooling cylinder 35 is connected to a coolant input pipe 36, and the input end pipeline of the coolant input pipe 36 is connected to a liquid pump, and the bottom output end pipeline of the cooling cylinder 35 is connected to a coolant output pipe 39, and the output end pipeline of the coolant output pipe 39 is connected to a universal nozzle 40, and the output end of the universal nozzle 40 faces the abutment between the tool 30 and the workpiece 6. During processing, coolant is pumped into the cooling cylinder 35 by a liquid pump, and the coolant is sprayed along the coolant output pipe 39 along the universal nozzle 40 to cool the tool 30 and the workpiece 6.

[0028] The middle part of the cooling cylinder 35 is rotatably connected with a rotating part 37, and the rotating part 37 is coaxially arranged with the cooling cylinder 35. The outer wall of the rotating part 37 is fixedly provided with an external gear 38, and the outer wall of the driving shaft 27 is fixedly provided with a baffle. The middle part of the outer wall of the driving shaft 27 is slidably sleeved with a driving bevel gear 28 through the baffle. The driving bevel gear 28 is meshed with a first transmission bevel gear 43 on the outer edge of one side of the cooling cylinder 35. The center of the first transmission bevel gear 43 is fixedly connected with a transmission shaft 42, and the transmission shaft 42 is parallel to the workpiece 6. The middle part of the transmission shaft 42 is connected to the outer wall of the cooling cylinder 35 through a connecting frame 44. The other end of the transmission shaft 42 is connected with a second transmission bevel gear 41, and the second transmission bevel gear 41 meshes with the external gear 38. When the driving shaft 27 rotates, it drives the driving bevel gear 28 to move accordingly. When the driving bevel gear 28 rotates, it drives the first transmission bevel gear 43 meshing therewith to start rotating. When the first transmission bevel gear 43 rotates, it drives the transmission shaft 42 to start rotating, so that the second transmission bevel gear 41 connected to the other end of the transmission shaft 42 starts rotating. When the second transmission bevel gear 41 rotates, it drives the outer gear 38 meshing therewith to start rotating, so that the rotating part 37 in the middle of the cooling cylinder 35 starts rotating.

[0029] A plurality of baffles 45 are evenly arranged inside the rotating portion 37 around the axis of the cooling cylinder 35. The baffles 45 are arranged perpendicular to the cooling cylinder 35. A slide rod 46 is vertically arranged in the middle of the outer edge of the baffle 45. A slide rail 47 is provided at the connection between the slide rod 46 and the inner wall of the cooling cylinder 35. The slide rail 47 is radially arranged around the axis of the cooling cylinder 35. A spring 48 is connected between the side wall of the slide rod 46 and the slide rail 47. When the rotating part 37 rotates, the baffle 45 is driven to move accordingly, so that the baffle 45 generates centrifugal force, driving the slide bar 46 to start moving toward the outer end of the slide rail 47, and the spring 48 is compressed to generate an elastic force in the opposite direction. At this time, the baffle 45 opens, allowing the coolant to pass through. After the tool is changed, the speed of the drive shaft 27 and the drive bevel gear 28 changes, so that the speed of the first transmission bevel gear 43 connected thereto changes accordingly, driving the speed of the transmission shaft 42 and the second transmission bevel gear 41 to change. At this time, the speed of the outer gear 38 and the rotating part 37 changes accordingly, and the centrifugal force on the baffle 45 changes, so that the opening amplitude of the baffle 45 under the elastic force of the spring 48 changes, thereby changing the flow rate of the coolant, thereby realizing the synchronous adjustment of the coolant flow rate based on the different speeds of different tools 30, which can effectively reduce the waste of coolant and improve the cooling effect.

[0030] Working principle: During processing, the sliding seat 9 is slid according to the processing position. When the sliding seat 9 moves, the base 8 is driven to move accordingly. When the base 8 moves, the outer rod 10 on the upper part of the base 8 is driven to move accordingly. When the outer rod 10 moves, the outer rod 10 and the base 8 opposite thereto are driven to move accordingly through the movable rod 12. After the processing position is adjusted, the electric telescopic rod 15 is started to shorten the electric telescopic rod 15, driving the slider 16 on the top of the electric telescopic rod 15 to move downward accordingly, so that the movable rod 12 connected to the slider 16 moves downward accordingly. When the movable rod 12 moves downward, it drives the connecting shaft 11 to move downward, so that the connecting shaft The rotating rods 25 at both ends of 11 move downward, and when the rotating rods 25 move downward, the fixed rods 32 and the mounting blocks 33 move downward. When the mounting blocks 33 move, the grinding motor 26 moves downward. When the grinding motor 26 moves, the driving shaft 27 and the tool holder 29 move downward accordingly, so that the tool 30 on the other side of the tool holder 29 moves downward accordingly, until the tool 30 moves to the processing position and stops. At this time, the grinding motor 26 is started, so that the driving shaft 27 starts to rotate, driving the tool holder 29 and the tool 30 to rotate accordingly. After preliminary processing, the electric telescopic rod 15 is extended, so that the workpiece 6 is subjected to segmented grinding processing.

[0031] When the electric telescopic rod 15 is extended, it drives the slider 16 to move upward. When the slider 16 moves upward, it drives the movable rod 12 to move upward, so that the driving gear 19 moves upward. When the driving gear 19 moves upward, the elastic latch 18 pops out and meshes with the driving gear 19, so that the driving gear 19 starts to rotate. When the driving gear 19 rotates, it drives the gear shaft 20 to start rotating. When the gear shaft 20 rotates, it drives the driving wheel 21 at the other end to start rotating, so that the driven wheel 23 meshed with it through the transmission belt 22 starts to rotate, and drives the connecting shaft 11 to start rotating. When the connecting shaft 11 rotates, it drives the rotating rod 25 to start rotating, so that The grinding motor 26 and different tools 30 at the other end of the rotating rod 25 begin to rotate until the tool 30 at the other end is vertically downward. At this time, the electric telescopic rod 15 is shortened again, driving the slider 16 and the movable rod 12 to reset. The above steps are repeated to further process the workpiece 6. At this time, when the driving gear 19 contacts the elastic tooth 18, the elastic tooth 18 is retracted, so that the driving gear 19 stops rotating when moving downward, ensuring the stability of the tool 30 when moving downward. By providing tools 30 of different types, fast tool change of the grinding machining center can be achieved, effectively improving the machining efficiency.

[0032] When the driving shaft 27 rotates, the driving bevel gear 28 is driven to move accordingly. When the driving bevel gear 28 rotates, the first transmission bevel gear 43 meshing therewith is driven to start rotating. When the first transmission bevel gear 43 rotates, the transmission shaft 42 is driven to start rotating, so that the second transmission bevel gear 41 connected to the other end of the transmission shaft 42 starts rotating. When the second transmission bevel gear 41 rotates, the outer gear 38 meshing therewith is driven to start rotating, so that the rotating part 37 in the middle of the cooling cylinder 35 starts rotating. At this time, coolant is pumped into the cooling cylinder 35 through a liquid pump, and the coolant is sprayed along the coolant output pipe 39 along the universal nozzle 40 to cool the tool 30 and the workpiece 6. When the rotating part 37 rotates, the baffle 45 is driven to move accordingly, so that the baffle 45 generates centrifugal force, which drives the slide rod 4 6, the outer end of the slide rail 47 starts to move, the spring 48 is compressed, and an elastic force in the opposite direction is generated. At this time, the baffle 45 opens to allow the coolant to pass through. After the tool is changed, the rotation speeds of the drive shaft 27 and the drive bevel gear 28 change, so that the rotation speeds of the first transmission bevel gear 43 connected thereto change accordingly, driving the rotation speeds of the transmission shaft 42 and the second transmission bevel gear 41 to change. At this time, the rotation speeds of the outer gear 38 and the rotating part 37 change accordingly, and the centrifugal force on the baffle 45 changes, so that the opening amplitude of the baffle 45 under the elastic force of the spring 48 changes, thereby changing the flow rate of the coolant, thereby realizing the synchronous adjustment of the coolant flow rate based on the different rotation speeds of different tools 30, which can effectively reduce the waste of coolant and improve the cooling effect.

[0033] The above embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, other embodiments obtained by those skilled in the art without creative work shall all fall within the scope of protection of the present invention.

Claims

1. A grinding machining center capable of multi-station rapid tool change, characterized in that: It comprises a main body (1), a segmented grinding mechanism, a rapid tool changing mechanism and a synchronous cooling mechanism; A processing table (2) is fixedly arranged on the top of the main body (1), and limiting tables (5) are fixedly arranged on both sides of the top of the processing table (2). A limiting groove (24) is provided on the top of the limiting table (5), and a workpiece (6) is arranged inside the limiting groove (24). The workpiece (6) is horizontally arranged inside the limiting groove (24), and the left end of the workpiece (6) is detachably connected to a driving motor (3). A plurality of rollers (31) are rotatably arranged on the inner wall of the limiting groove (24), and the rollers (31) are rotatably connected to the workpiece (6). The workpiece (6) is coaxially arranged, the drive motor (3) is fixedly arranged on the left side of the top of the processing table (2), a fixed block (7) is detachably arranged in the middle of the workpiece (6), and the fixed block (7) is fixedly connected to the processing table (2), the segmented grinding mechanism is arranged on the top of both sides of the workpiece (6), the quick tool change mechanism is arranged on the side of the segmented grinding mechanism, the synchronous cooling mechanism is arranged in the middle of the lower side of the segmented grinding mechanism, and a plurality of supports (4) are fixedly arranged at the bottom of the main body (1).

2. A grinding machining center capable of multi-station rapid tool change according to claim 1, characterized in that The segmented grinding mechanism comprises a plurality of bases (8), wherein the plurality of bases (8) are symmetrically arranged on both sides of the workpiece (6), the bases (8) are arranged perpendicularly to the processing table (2), the bottom of the base (8) is connected with a sliding seat (9), the sliding seat (9) is slidably connected with the top of the processing table (2), the sliding direction of the sliding seat (9) is parallel to the axis of the workpiece (6), the top of the base (8) is fixedly provided with an outer sleeve rod (10), and a movable rod (12) is connected between the side walls facing the outer sleeve rod (10), and the movable rod (12) is arranged perpendicularly to the outer sleeve rod (10).

3. A grinding machining center capable of multi-station rapid tool change according to claim 2, characterized in that A sliding groove (17) is provided at the connection between the movable rod (12) and the outer rod (10); a sliding cavity (13) is provided inside the outer rod (10); a slider (16) is slidably provided inside the sliding cavity (13); an end of the movable rod (12) extends to the inside of the sliding groove (17) and is fixedly connected to the slider (16); a bottom cavity (14) is provided inside the base (8); an electric telescopic rod (15) is connected to the inside of the bottom cavity (14); the electric telescopic rod (15) is vertically arranged with the movable rod (12); a top movable end of the electric telescopic rod (15) extends to the inside of the sliding cavity (13); and a top movable end of the electric telescopic rod (15) is fixedly connected to the slider (16).

4. A grinding machining center capable of multi-station rapid tool change according to claim 3, characterized in that A connecting shaft (11) is rotatably connected between the middle ends of the movable rod (12), the connecting shaft (11) is arranged parallel to the workpiece (6), both ends of the connecting shaft (11) are fixedly connected to rotating rods (25), the rotating rods (25) are arranged perpendicularly to the connecting shaft (11), both ends of the rotating rod (25) are perpendicularly connected to fixed rods (32), the outer ends of the fixed rods (32) are fixedly connected to mounting blocks (33), the outer side of the mounting blocks (33) is fixedly provided with a grinding motor (26), the output end of the grinding motor (26) is connected to a driving shaft (27), the other end of the driving shaft (27) is connected to a tool holder (29), and a tool (30) is detachably provided on the side of the tool holder (29) away from the driving shaft (27).

5. A grinding machining center capable of multi-station rapid tool change according to claim 4, characterized in that The quick tool changing mechanism comprises an elastic latching tooth (18), wherein the elastic latching tooth (18) is evenly arranged on a side wall where the outer sleeve rod (10) is connected to the movable rod (12), and a gear shaft (20) is rotatably connected to the side wall of one end of the movable rod (12) close to the elastic latching tooth (18), wherein the gear shaft (20) is vertically arranged to the movable rod (12), and a driving gear (19) is connected to the inner end of the gear shaft (20), wherein the driving gear (19) is coaxially arranged to the gear shaft (20), and the driving gear (19) is meshingly connected to the elastic latching tooth (18).

6. A grinding machining center capable of multi-station rapid tool change according to claim 5, characterized in that The other end of the gear shaft (20) is connected to a driving wheel (21), a driven wheel (23) is arranged in the middle of the connecting shaft (11), the driven wheel (23) is arranged coaxially with the connecting shaft (11), a transmission belt (22) is sleeved between the driven wheel (23) and the driving wheel (21), and the transmission belt (22) is meshedly connected to the driven wheel (23) and the driving wheel (21), respectively.

7. A grinding machining center capable of multi-station rapid tool change according to claim 6, characterized in that The rotation range of the rotating rod (25) is 0°-180°. The two groups of grinding motors (26), the driving shaft (27), the tool holder (29) and the tool (30) at both ends of the rotating rod (25) are symmetrically arranged around the connecting shaft (11). The tool (30) has various models.

8. A grinding machining center capable of multi-station rapid tool change according to claim 4, characterized in that The synchronous cooling mechanism comprises a cross bar (34), wherein the cross bar (34) is arranged on the opposite side walls of the base (8), the cross bar (34) is arranged parallel to the movable bar (12), a cooling cylinder (35) is fixedly arranged in the middle of the cross bar (34), the top input end pipeline of the cooling cylinder (35) is connected to a coolant input pipe (36), the input end pipeline of the coolant input pipe (36) is connected to a liquid pump, the bottom output end pipeline of the cooling cylinder (35) is connected to a coolant output pipe (39), the output end pipeline of the coolant output pipe (39) is connected to a universal nozzle (40), and the output end of the universal nozzle (40) faces the abutment between the tool (30) and the workpiece (6).

9. A grinding machining center capable of multi-station rapid tool change according to claim 8, characterized in that The middle part of the cooling cylinder (35) is rotatably connected to a rotating part (37), the rotating part (37) is coaxially arranged with the cooling cylinder (35), the outer wall of the rotating part (37) is fixedly provided with an external gear (38), the outer wall of the driving shaft (27) is fixedly provided with a retaining bar (33), and the middle part of the outer wall of the driving shaft (27) is slidably sleeved with a driving bevel gear (28) through the retaining bar (33), and the driving bevel gear (28) faces the cooling cylinder (35). ) is provided with a first transmission bevel gear (43) meshing with the outer edge of one side thereof, the center of the first transmission bevel gear (43) is fixedly connected with a transmission shaft (42), the transmission shaft (42) is arranged parallel to the workpiece (6), the middle part of the transmission shaft (42) is connected to the outer side wall of the cooling cylinder (35) through a connecting frame (44), the other end of the transmission shaft (42) is connected with a second transmission bevel gear (41), and the second transmission bevel gear (41) meshes with the external gear (38).

10. A grinding machining center capable of multi-station rapid tool change according to claim 9, characterized in that A plurality of baffles (45) are evenly arranged inside the rotating portion (37) around the axis of the cooling cylinder (35); the baffles (45) are arranged perpendicularly to the cooling cylinder (35); a slide bar (46) is arranged perpendicularly in the middle of the outer edge of the baffle (45); a slide rail (47) is provided at the connection between the slide bar (46) and the inner wall of the cooling cylinder (35); the slide rail (47) is radially arranged around the axis of the cooling cylinder (35); a spring (48) is connected between the side wall of the slide bar (46) and the slide rail (47).

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